vendor: Update CC containerd version

Re-vendor to pickup confidential-containers containerd 1.6.6 rebase
Fixes: #4489

Signed-off-by: Megan Wright <megan.wright@ibm.com>
This commit is contained in:
Megan Wright
2022-06-20 10:51:09 +01:00
parent 94a6edcfa3
commit d6924182f3
214 changed files with 6118 additions and 2179 deletions

View File

@@ -9,12 +9,12 @@ require (
github.com/blang/semver/v4 v4.0.0
github.com/containerd/cgroups v1.0.3
github.com/containerd/console v1.0.3
github.com/containerd/containerd v1.6.1
github.com/containerd/containerd v1.6.6
github.com/containerd/cri-containerd v1.11.1-0.20190125013620-4dd6735020f5
github.com/containerd/fifo v1.0.0
github.com/containerd/ttrpc v1.1.0
github.com/containerd/typeurl v1.0.2
github.com/containernetworking/plugins v1.0.1
github.com/containernetworking/plugins v1.1.1
github.com/coreos/go-systemd/v22 v22.3.2
github.com/cri-o/cri-o v1.0.0-rc2.0.20170928185954-3394b3b2d6af
github.com/docker/go-units v0.4.0
@@ -25,17 +25,16 @@ require (
github.com/go-openapi/strfmt v0.18.0
github.com/go-openapi/swag v0.19.14
github.com/go-openapi/validate v0.18.0
github.com/godbus/dbus/v5 v5.0.4
github.com/godbus/dbus/v5 v5.0.6
github.com/gogo/protobuf v1.3.2
github.com/hashicorp/go-multierror v1.1.1
github.com/intel-go/cpuid v0.0.0-20210602155658-5747e5cec0d9
github.com/mdlayher/vsock v1.1.0
github.com/opencontainers/image-spec v1.0.2 // indirect
github.com/opencontainers/runc v1.1.0
github.com/opencontainers/runc v1.1.2
github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417
github.com/opencontainers/selinux v1.10.0
github.com/opencontainers/selinux v1.10.1
github.com/pkg/errors v0.9.1
github.com/prometheus/client_golang v1.11.0
github.com/prometheus/client_golang v1.11.1
github.com/prometheus/client_model v0.2.0
github.com/prometheus/common v0.30.0
github.com/prometheus/procfs v0.7.3
@@ -51,14 +50,14 @@ require (
go.opentelemetry.io/otel/trace v1.3.0
golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd
golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f
golang.org/x/sys v0.0.0-20220204135822-1c1b9b1eba6a
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad
google.golang.org/grpc v1.43.0
k8s.io/apimachinery v0.22.5
k8s.io/cri-api v0.23.1
)
replace (
github.com/containerd/containerd => github.com/confidential-containers/containerd v1.6.0-beta.0.0.20220303142103-c8f5e4509dcc
github.com/containerd/containerd => github.com/confidential-containers/containerd v1.6.7-0.20220619164525-4b12e77e79dc
github.com/opencontainers/image-spec => github.com/opencontainers/image-spec v1.0.2
github.com/opencontainers/runc => github.com/opencontainers/runc v1.0.3
github.com/uber-go/atomic => go.uber.org/atomic v1.5.1

View File

@@ -15,11 +15,6 @@ cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKV
cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
@@ -60,9 +55,9 @@ github.com/Microsoft/go-winio v0.4.17/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOp
github.com/Microsoft/go-winio v0.5.1 h1:aPJp2QD7OOrhO5tQXqQoGSJc+DjDtWTGLOmNyAm6FgY=
github.com/Microsoft/go-winio v0.5.1/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
github.com/Microsoft/hcsshim v0.8.20/go.mod h1:+w2gRZ5ReXQhFOrvSQeNfhrYB/dg3oDwTOcER2fw4I4=
github.com/Microsoft/hcsshim v0.8.23/go.mod h1:4zegtUJth7lAvFyc6cH2gGQ5B3OFQim01nnU2M8jKDg=
github.com/Microsoft/hcsshim v0.9.2 h1:wB06W5aYFfUB3IvootYAY2WnOmIdgPGfqSI6tufQNnY=
github.com/Microsoft/hcsshim v0.9.2/go.mod h1:7pLA8lDk46WKDWlVsENo92gC0XFa8rbKfyFRBqxEbCc=
github.com/Microsoft/hcsshim v0.9.3 h1:k371PzBuRrz2b+ebGuI2nVgVhgsVX60jMfSw80NECxo=
github.com/Microsoft/hcsshim v0.9.3/go.mod h1:7pLA8lDk46WKDWlVsENo92gC0XFa8rbKfyFRBqxEbCc=
github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
@@ -116,11 +111,11 @@ github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWR
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/cilium/ebpf v0.4.0/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
github.com/cilium/ebpf v0.6.2 h1:iHsfF/t4aW4heW2YKfeHrVPGdtYTL4C4KocpM8KTSnI=
github.com/cilium/ebpf v0.6.2/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
github.com/cilium/ebpf v0.7.0 h1:1k/q3ATgxSXRdrmPfH8d7YK0GfqVsEKZAX9dQZvs56k=
github.com/cilium/ebpf v0.7.0/go.mod h1:/oI2+1shJiTGAMgl6/RgJr36Eo1jzrRcAWbcXO2usCA=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
@@ -130,8 +125,8 @@ github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWH
github.com/cockroachdb/datadriven v0.0.0-20200714090401-bf6692d28da5/go.mod h1:h6jFvWxBdQXxjopDMZyH2UVceIRfR84bdzbkoKrsWNo=
github.com/cockroachdb/errors v1.2.4/go.mod h1:rQD95gz6FARkaKkQXUksEje/d9a6wBJoCr5oaCLELYA=
github.com/cockroachdb/logtags v0.0.0-20190617123548-eb05cc24525f/go.mod h1:i/u985jwjWRlyHXQbwatDASoW0RMlZ/3i9yJHE2xLkI=
github.com/confidential-containers/containerd v1.6.0-beta.0.0.20220303142103-c8f5e4509dcc h1:bDEmMw+gKHh3jNufa6PUF8BXEfIG0E8ZQyS4EsTLiek=
github.com/confidential-containers/containerd v1.6.0-beta.0.0.20220303142103-c8f5e4509dcc/go.mod h1:sHtY8MtLPN6szMk2HmGsmhnoGNVarJdwaNK1IPr+m18=
github.com/confidential-containers/containerd v1.6.7-0.20220619164525-4b12e77e79dc h1:HuECNn4y8xeMzkmTjjICFvcTVq3ec0Jox3SV2G8ph2k=
github.com/confidential-containers/containerd v1.6.7-0.20220619164525-4b12e77e79dc/go.mod h1:ZoP1geJldzCVY3Tonoz7b1IXk8rIX0Nltt5QE4OMNk0=
github.com/containerd/aufs v1.0.0/go.mod h1:kL5kd6KM5TzQjR79jljyi4olc1Vrx6XBlcyj3gNv2PU=
github.com/containerd/btrfs v1.0.0/go.mod h1:zMcX3qkXTAi9GI50+0HOeuV8LU2ryCE/V2vG/ZBiTss=
github.com/containerd/cgroups v1.0.1/go.mod h1:0SJrPIenamHDcZhEcJMNBB85rHcUsw4f25ZfBiPYRkU=
@@ -142,18 +137,17 @@ github.com/containerd/console v1.0.2/go.mod h1:ytZPjGgY2oeTkAONYafi2kSj0aYggsf8a
github.com/containerd/console v1.0.3 h1:lIr7SlA5PxZyMV30bDW0MGbiOPXwc63yRuCP0ARubLw=
github.com/containerd/console v1.0.3/go.mod h1:7LqA/THxQ86k76b8c/EMSiaJ3h1eZkMkXar0TQ1gf3U=
github.com/containerd/continuity v0.0.0-20210208174643-50096c924a4e/go.mod h1:EXlVlkqNba9rJe3j7w3Xa924itAMLgZH4UD/Q4PExuQ=
github.com/containerd/continuity v0.1.0/go.mod h1:ICJu0PwR54nI0yPEnJ6jcS+J7CZAUXrLh8lPo2knzsM=
github.com/containerd/continuity v0.2.2 h1:QSqfxcn8c+12slxwu00AtzXrsami0MJb/MQs9lOLHLA=
github.com/containerd/continuity v0.2.2/go.mod h1:pWygW9u7LtS1o4N/Tn0FoCFDIXZ7rxcMX7HX1Dmibvk=
github.com/containerd/cri-containerd v1.11.1-0.20190125013620-4dd6735020f5 h1:/srF029I+oDfm/qeltxCGJyJ8urmlqWGOQmQ7HvwrRc=
github.com/containerd/cri-containerd v1.11.1-0.20190125013620-4dd6735020f5/go.mod h1:wxbGdReWGCalzGOEpifoHeYCK4xAgnj4o/4bVB+9voU=
github.com/containerd/fifo v1.0.0 h1:6PirWBr9/L7GDamKr+XM0IeUFXu5mf3M/BPpH9gaLBU=
github.com/containerd/fifo v1.0.0/go.mod h1:ocF/ME1SX5b1AOlWi9r677YJmCPSwwWnQ9O123vzpE4=
github.com/containerd/go-cni v1.1.0/go.mod h1:Rflh2EJ/++BA2/vY5ao3K6WJRR/bZKsX123aPk+kUtA=
github.com/containerd/go-cni v1.1.3/go.mod h1:Rflh2EJ/++BA2/vY5ao3K6WJRR/bZKsX123aPk+kUtA=
github.com/containerd/go-cni v1.1.6/go.mod h1:BWtoWl5ghVymxu6MBjg79W9NZrCRyHIdUtk4cauMe34=
github.com/containerd/go-runc v1.0.0 h1:oU+lLv1ULm5taqgV/CJivypVODI4SUz1znWjv3nNYS0=
github.com/containerd/go-runc v1.0.0/go.mod h1:cNU0ZbCgCQVZK4lgG3P+9tn9/PaJNmoDXPpoJhDR+Ok=
github.com/containerd/imgcrypt v1.1.3/go.mod h1:/TPA1GIDXMzbj01yd8pIbQiLdQxed5ue1wb8bP7PQu4=
github.com/containerd/imgcrypt v1.1.4/go.mod h1:LorQnPtzL/T0IyCeftcsMEO7AqxUDbdO8j/tSUpgxvo=
github.com/containerd/nri v0.1.0/go.mod h1:lmxnXF6oMkbqs39FiCt1s0R2HSMhcLel9vNL3m4AaeY=
github.com/containerd/stargz-snapshotter/estargz v0.4.1/go.mod h1:x7Q9dg9QYb4+ELgxmo4gBUeJB0tl5dqH1Sdz0nJU1QM=
github.com/containerd/ttrpc v1.0.2/go.mod h1:UAxOpgT9ziI0gJrmKvgcZivgxOp8iFPSk8httJEt98Y=
@@ -162,11 +156,12 @@ github.com/containerd/ttrpc v1.1.0/go.mod h1:XX4ZTnoOId4HklF4edwc4DcqskFZuvXB1Ev
github.com/containerd/typeurl v1.0.2 h1:Chlt8zIieDbzQFzXzAeBEF92KhExuE4p9p92/QmY7aY=
github.com/containerd/typeurl v1.0.2/go.mod h1:9trJWW2sRlGub4wZJRTW83VtbOLS6hwcDZXTn6oPz9s=
github.com/containerd/zfs v1.0.0/go.mod h1:m+m51S1DvAP6r3FcmYCp54bQ34pyOwTieQDNRIRHsFY=
github.com/containernetworking/cni v1.0.1 h1:9OIL/sZmMYDBe+G8svzILAlulUpaDTUjeAbtH/JNLBo=
github.com/containernetworking/cni v1.0.1/go.mod h1:AKuhXbN5EzmD4yTNtfSsX3tPcmtrBI6QcRV0NiNt15Y=
github.com/containernetworking/plugins v1.0.1 h1:wwCfYbTCj5FC0EJgyzyjTXmqysOiJE9r712Z+2KVZAk=
github.com/containernetworking/plugins v1.0.1/go.mod h1:QHCfGpaTwYTbbH+nZXKVTxNBDZcxSOplJT5ico8/FLE=
github.com/containers/ocicrypt v1.1.2/go.mod h1:Dm55fwWm1YZAjYRaJ94z2mfZikIyIN4B0oB3dj3jFxY=
github.com/containernetworking/cni v1.1.1 h1:ky20T7c0MvKvbMOwS/FrlbNwjEoqJEUUYfsL4b0mc4k=
github.com/containernetworking/cni v1.1.1/go.mod h1:sDpYKmGVENF3s6uvMvGgldDWeG8dMxakj/u+i9ht9vw=
github.com/containernetworking/plugins v1.1.1 h1:+AGfFigZ5TiQH00vhR8qPeSatj53eNGz0C1d3wVYlHE=
github.com/containernetworking/plugins v1.1.1/go.mod h1:Sr5TH/eBsGLXK/h71HeLfX19sZPp3ry5uHSkI4LPxV8=
github.com/containers/ocicrypt v1.1.3/go.mod h1:xpdkbVAuaH3WzbEabUd5yDsl9SwJA5pABH85425Es2g=
github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
@@ -213,11 +208,9 @@ github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25Kn
github.com/elazarl/goproxy v0.0.0-20180725130230-947c36da3153/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
github.com/emicklei/go-restful v2.9.5+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
github.com/emicklei/go-restful/v3 v3.7.3/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/go-control-plane v0.9.7/go.mod h1:cwu0lG7PUMfa9snN8LXBig5ynNVH9qI8YYLbd1fK2po=
github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ=
@@ -311,8 +304,9 @@ github.com/go-openapi/validate v0.18.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
github.com/godbus/dbus/v5 v5.0.3/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
github.com/godbus/dbus/v5 v5.0.4 h1:9349emZab16e7zQvpmsbtjc18ykshndd8y2PG3sgJbA=
github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
github.com/godbus/dbus/v5 v5.0.6 h1:mkgN1ofwASrYnJ5W6U/BxG15eXXXjirgZc7CLqkcaro=
github.com/godbus/dbus/v5 v5.0.6/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
github.com/gogo/googleapis v1.4.0/go.mod h1:5YRNX2z1oM5gXdAkurHa942MDgEJyk02w4OecKY87+c=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
@@ -333,7 +327,6 @@ github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt
github.com/golang/mock v1.4.1/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.3/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/mock v1.4.4/go.mod h1:l3mdAwkq5BuhzHwde/uurv3sEJeZMXNpwsxVWU71h+4=
github.com/golang/mock v1.5.0/go.mod h1:CWnOUgYIOo4TcNZ0wHX3YZCqsaM1I1Jvs6v3mP3KVu8=
github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -377,7 +370,6 @@ github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
github.com/google/martian/v3 v3.0.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
github.com/google/martian/v3 v3.1.0/go.mod h1:y5Zk1BBys9G+gd6Jrk0W3cC1+ELVxBWuIGO+w/tUAp0=
github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
github.com/google/pprof v0.0.0-20191218002539-d4f498aebedc/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
@@ -385,10 +377,7 @@ github.com/google/pprof v0.0.0-20200212024743-f11f1df84d12/go.mod h1:ZgVRPoUq/hf
github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20201023163331-3e6fc7fc9c4c/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20201203190320-1bf35d6f28c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20210122040257-d980be63207e/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20210226084205-cbba55b83ad5/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/google/uuid v1.1.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
@@ -445,7 +434,6 @@ github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANyt
github.com/intel-go/cpuid v0.0.0-20210602155658-5747e5cec0d9 h1:x9HFDMDCsaxTvC4X3o0ZN6mw99dT/wYnTItGwhBRmg0=
github.com/intel-go/cpuid v0.0.0-20210602155658-5747e5cec0d9/go.mod h1:RmeVYf9XrPRbRc3XIx0gLYA8qOFvNoPOfaEZduRlEp4=
github.com/intel/goresctrl v0.2.0/go.mod h1:+CZdzouYFn5EsxgqAQTEzMfwKwuc0fVdMrT9FCCAVRQ=
github.com/j-keck/arping v1.0.2/go.mod h1:aJbELhR92bSk7tp79AWM/ftfc90EfEi2bQJrbBFOsPw=
github.com/joefitzgerald/rainbow-reporter v0.1.0/go.mod h1:481CNgqmVHQZzdIbN52CupLJyoVwB10FQ/IQlF1pdL8=
github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
github.com/jonboulle/clockwork v0.2.2/go.mod h1:Pkfl5aHPm1nk2H9h0bjmnJD/BcgbGXUBGnn1kMkgxc8=
@@ -504,7 +492,7 @@ github.com/mdlayher/socket v0.2.0/go.mod h1:QLlNPkFR88mRUNQIzRBMfXxwKal8H7u1h3bL
github.com/mdlayher/vsock v1.1.0 h1:2k9udP/hUkLUOboGxXMHOk4f0GWWZwS3IuE3Ee/YYfk=
github.com/mdlayher/vsock v1.1.0/go.mod h1:nsVhPsVuBBwAKh6i6PzdNoke6/TNYTjkxoRKAp/+pXs=
github.com/miekg/dns v1.0.14/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
github.com/miekg/pkcs11 v1.0.3/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
github.com/miekg/pkcs11 v1.1.1/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible/go.mod h1:8AuVvqP/mXw1px98n46wfvcGfQ4ci2FwoAjKYxuo3Z4=
github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
github.com/mitchellh/go-homedir v1.0.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
@@ -518,9 +506,9 @@ github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh
github.com/moby/locker v1.0.1/go.mod h1:S7SDdo5zpBK84bzzVlKr2V0hz+7x9hWbYC/kq7oQppc=
github.com/moby/spdystream v0.2.0/go.mod h1:f7i0iNDQJ059oMTcWxx8MA/zKFIuD/lY+0GqbN2Wy8c=
github.com/moby/sys/mountinfo v0.4.1/go.mod h1:rEr8tzG/lsIZHBtN/JjGG+LMYx9eXgW2JI+6q0qou+A=
github.com/moby/sys/mountinfo v0.6.0 h1:gUDhXQx58YNrpHlK4nSL+7y2pxFZkUcXqzFDKWdC0Oo=
github.com/moby/sys/mountinfo v0.6.0/go.mod h1:3bMD3Rg+zkqx8MRYPi7Pyb0Ie97QEBmdxbhnCLlSvSU=
github.com/moby/sys/signal v0.7.0/go.mod h1:GQ6ObYZfqacOwTtlXvcmh9A26dVRul/hbOZn88Kg8Tg=
github.com/moby/sys/mountinfo v0.5.0 h1:2Ks8/r6lopsxWi9m58nlwjaeSzUX9iiL1vj5qB/9ObI=
github.com/moby/sys/mountinfo v0.5.0/go.mod h1:3bMD3Rg+zkqx8MRYPi7Pyb0Ie97QEBmdxbhnCLlSvSU=
github.com/moby/sys/signal v0.6.0/go.mod h1:GQ6ObYZfqacOwTtlXvcmh9A26dVRul/hbOZn88Kg8Tg=
github.com/moby/sys/symlink v0.2.0/go.mod h1:7uZVF2dqJjG/NsClqul95CqKOBRQyYSNnJ6BMgR/gFs=
github.com/moby/term v0.0.0-20210610120745-9d4ed1856297/go.mod h1:vgPCkQMyxTZ7IDy8SXRufE172gr8+K/JE/7hHFxHW3A=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -535,6 +523,7 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8m
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw=
github.com/networkplumbing/go-nft v0.2.0/go.mod h1:HnnM+tYvlGAsMU7yoYwXEVLLiDW9gdMmb5HoGcwpuQs=
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
@@ -549,14 +538,17 @@ github.com/onsi/ginkgo v1.13.0/go.mod h1:+REjRxOmWfHCjfv9TTWB1jD1Frx4XydAD3zm1ls
github.com/onsi/ginkgo v1.14.0/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9klQyY=
github.com/onsi/ginkgo v1.16.4 h1:29JGrr5oVBm5ulCWet69zQkzWipVXIol6ygQUe/EzNc=
github.com/onsi/ginkgo v1.16.4/go.mod h1:dX+/inL/fNMqNlz0e9LfyB9TswhZpCVdJM/Z6Vvnwo0=
github.com/onsi/ginkgo/v2 v2.1.3 h1:e/3Cwtogj0HA+25nMP1jCMDIf8RtRYbGwGGuBIFztkc=
github.com/onsi/ginkgo/v2 v2.1.3/go.mod h1:vw5CSIxN1JObi/U8gcbwft7ZxR2dgaR70JSE3/PpL4c=
github.com/onsi/gomega v0.0.0-20170829124025-dcabb60a477c/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
github.com/onsi/gomega v1.9.0/go.mod h1:Ho0h+IUsWyvy1OpqCwxlQ/21gkhVunqlU8fDGcoTdcA=
github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
github.com/onsi/gomega v1.15.0/go.mod h1:cIuvLEne0aoVhAgh/O6ac0Op8WWw9H6eYCriF+tEHG0=
github.com/onsi/gomega v1.16.0 h1:6gjqkI8iiRHMvdccRJM8rVKjCWk6ZIm6FTm3ddIe4/c=
github.com/onsi/gomega v1.16.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
github.com/onsi/gomega v1.17.0 h1:9Luw4uT5HTjHTN8+aNcSThgH1vdXnmdJ8xIfZ4wyTRE=
github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/opencontainers/image-spec v1.0.2 h1:9yCKha/T5XdGtO0q9Q9a6T5NUCsTn/DrBg0D7ufOcFM=
@@ -568,8 +560,8 @@ github.com/opencontainers/runtime-spec v1.0.3-0.20200929063507-e6143ca7d51d/go.m
github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 h1:3snG66yBm59tKhhSPQrQ/0bCrv1LQbKt40LnUPiUxdc=
github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
github.com/opencontainers/selinux v1.8.2/go.mod h1:MUIHuUEvKB1wtJjQdOyYRgOnLD2xAPP8dBsCoU0KuF8=
github.com/opencontainers/selinux v1.10.0 h1:rAiKF8hTcgLI3w0DHm6i0ylVVcOrlgR1kK99DRLDhyU=
github.com/opencontainers/selinux v1.10.0/go.mod h1:2i0OySw99QjzBBQByd1Gr9gSjvuho1lHsJxIJ3gGbJI=
github.com/opencontainers/selinux v1.10.1 h1:09LIPVRP3uuZGQvgR+SgMSNBd1Eb3vlRbGqQpoHsF8w=
github.com/opencontainers/selinux v1.10.1/go.mod h1:2i0OySw99QjzBBQByd1Gr9gSjvuho1lHsJxIJ3gGbJI=
github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
github.com/pborman/uuid v1.2.0 h1:J7Q5mO4ysT1dv8hyrUGHb9+ooztCXu1D8MY8DZYsu3g=
@@ -590,8 +582,9 @@ github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDf
github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
github.com/prometheus/client_golang v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g=
github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
github.com/prometheus/client_golang v1.11.0 h1:HNkLOAEQMIDv/K+04rukrLx6ch7msSRwf3/SASFAGtQ=
github.com/prometheus/client_golang v1.11.0/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
github.com/prometheus/client_golang v1.11.1 h1:+4eQaD7vAZ6DsfsxB15hbE0odUjGI5ARs9yskGu1v4s=
github.com/prometheus/client_golang v1.11.1/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@@ -672,7 +665,7 @@ github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5Cc
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69rRypqCw=
github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
github.com/tchap/go-patricia/v2 v2.3.1/go.mod h1:VZRHKAb53DLaG+nA9EaYYiaEx6YztwDlLElMsnSHD4k=
github.com/tchap/go-patricia v2.2.6+incompatible/go.mod h1:bmLyhP68RS6kStMGxByiQ23RP/odRBOTVjwp2cDyi6I=
github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
github.com/tv42/httpunix v0.0.0-20191220191345-2ba4b9c3382c/go.mod h1:hzIxponao9Kjc7aWznkXaL4U4TWaDSs8zcsY4Ka08nM=
@@ -711,7 +704,6 @@ go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
go.opencensus.io v0.22.5/go.mod h1:5pWMHQbX5EPX2/62yrJeAkowc+lfs/XD7Uxpq3pI6kk=
go.opencensus.io v0.23.0 h1:gqCw0LfLxScz8irSi8exQc7fyQ0fKQU/qnC/X8+V/1M=
go.opencensus.io v0.23.0/go.mod h1:XItmlyltB5F7CS4xOC1DcqMoFqwtC6OG2xF7mCv7P7E=
go.opentelemetry.io/contrib v0.20.0/go.mod h1:G/EtFaa6qaN7+LxqfIAT3GiZa7Wv5DTBUzl5H4LY0Kc=
@@ -784,7 +776,6 @@ golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHl
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/lint v0.0.0-20201208152925-83fdc39ff7b5/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
@@ -793,8 +784,6 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -832,14 +821,10 @@ golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81R
golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
golang.org/x/net v0.0.0-20210520170846-37e1c6afe023/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
@@ -854,12 +839,6 @@ golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4Iltr
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20200902213428-5d25da1a8d43/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20201109201403-9fd604954f58/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20210220000619-9bb904979d93/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20210313182246-cd4f82c27b84/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f h1:Qmd2pbz05z7z6lm0DrgQVVPuBm92jqujBKMHMOlOQEw=
golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
@@ -925,21 +904,14 @@ golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20200728102440-3e129f6d46b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200831180312-196b9ba8737a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200905004654-be1d3432aa8f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200909081042-eff7692f9009/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200916030750-2334cc1a136f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210220050731-9a76102bfb43/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210305230114-8fe3ee5dd75b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -954,11 +926,13 @@ golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210831042530-f4d43177bf5e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210903071746-97244b99971b/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210906170528-6f6e22806c34/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220204135822-1c1b9b1eba6a h1:ppl5mZgokTT8uPkmYOyEUmPTr3ypaKkg5eFOGrAmxxE=
golang.org/x/sys v0.0.0-20220204135822-1c1b9b1eba6a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad h1:ntjMns5wyP/fN65tdBD4g8J5w8n015+iIIs9rtjXkY0=
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
@@ -970,7 +944,6 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
@@ -1031,16 +1004,11 @@ golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roY
golang.org/x/tools v0.0.0-20200729194436-6467de6f59a7/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
golang.org/x/tools v0.0.0-20200825202427-b303f430e36d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
golang.org/x/tools v0.0.0-20200904185747-39188db58858/go.mod h1:Cj7w3i3Rnn0Xh82ur9kSqwfTHTeVxaDqrfMjpcNT6bE=
golang.org/x/tools v0.0.0-20200916195026-c9a70fc28ce3/go.mod h1:z6u4i615ZeAfBE4XtMziQW1fSVJXACjjbWkB/mvPzlU=
golang.org/x/tools v0.0.0-20201110124207-079ba7bd75cd/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.0.0-20201201161351-ac6f37ff4c2a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.0.0-20201208233053-a543418bbed2/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.0.0-20210105154028-b0ab187a4818/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.4/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1063,11 +1031,6 @@ google.golang.org/api v0.24.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0M
google.golang.org/api v0.28.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0MncE=
google.golang.org/api v0.29.0/go.mod h1:Lcubydp8VUV7KeIHD9z2Bys/sm/vGKnG1UHuDBSrHWM=
google.golang.org/api v0.30.0/go.mod h1:QGmEvQ87FHZNiUVJkT14jQNYJ4ZJjdRF23ZXz5138Fc=
google.golang.org/api v0.35.0/go.mod h1:/XrVsuzM0rZmrsbjJutiuftIzeuTQcEeaYcSk/mQ1dg=
google.golang.org/api v0.36.0/go.mod h1:+z5ficQTmoYpPn8LCUNVpK5I7hwkpjbcgqA7I34qYtE=
google.golang.org/api v0.40.0/go.mod h1:fYKFpnQN0DsDSKRVRcQSDQNtqWPfM9i+zNPxepjRCQ8=
google.golang.org/api v0.41.0/go.mod h1:RkxM5lITDfTzmyKFPt+wGrCJbVfniCr2ool8kTBzRTU=
google.golang.org/api v0.43.0/go.mod h1:nQsDGjRXMo4lvh5hP0TKqF244gqhGcr/YSIykhUk/94=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -1091,13 +1054,9 @@ google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKa
google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=

View File

@@ -4,17 +4,22 @@ import (
"context"
"encoding/json"
"errors"
"fmt"
"strings"
"sync"
"syscall"
"time"
"github.com/Microsoft/hcsshim/internal/cow"
"github.com/Microsoft/hcsshim/internal/hcs/schema1"
hcsschema "github.com/Microsoft/hcsshim/internal/hcs/schema2"
"github.com/Microsoft/hcsshim/internal/jobobject"
"github.com/Microsoft/hcsshim/internal/log"
"github.com/Microsoft/hcsshim/internal/logfields"
"github.com/Microsoft/hcsshim/internal/oc"
"github.com/Microsoft/hcsshim/internal/timeout"
"github.com/Microsoft/hcsshim/internal/vmcompute"
"github.com/sirupsen/logrus"
"go.opencensus.io/trace"
)
@@ -28,7 +33,8 @@ type System struct {
waitBlock chan struct{}
waitError error
exitError error
os, typ string
os, typ, owner string
startTime time.Time
}
func newSystem(id string) *System {
@@ -38,6 +44,11 @@ func newSystem(id string) *System {
}
}
// Implementation detail for silo naming, this should NOT be relied upon very heavily.
func siloNameFmt(containerID string) string {
return fmt.Sprintf(`\Container_%s`, containerID)
}
// CreateComputeSystem creates a new compute system with the given configuration but does not start it.
func CreateComputeSystem(ctx context.Context, id string, hcsDocumentInterface interface{}) (_ *System, err error) {
operation := "hcs::CreateComputeSystem"
@@ -127,6 +138,7 @@ func (computeSystem *System) getCachedProperties(ctx context.Context) error {
}
computeSystem.typ = strings.ToLower(props.SystemType)
computeSystem.os = strings.ToLower(props.RuntimeOSType)
computeSystem.owner = strings.ToLower(props.Owner)
if computeSystem.os == "" && computeSystem.typ == "container" {
// Pre-RS5 HCS did not return the OS, but it only supported containers
// that ran Windows.
@@ -195,7 +207,7 @@ func (computeSystem *System) Start(ctx context.Context) (err error) {
if err != nil {
return makeSystemError(computeSystem, operation, err, events)
}
computeSystem.startTime = time.Now()
return nil
}
@@ -324,11 +336,115 @@ func (computeSystem *System) Properties(ctx context.Context, types ...schema1.Pr
return properties, nil
}
// PropertiesV2 returns the requested container properties targeting a V2 schema container.
func (computeSystem *System) PropertiesV2(ctx context.Context, types ...hcsschema.PropertyType) (*hcsschema.Properties, error) {
computeSystem.handleLock.RLock()
defer computeSystem.handleLock.RUnlock()
// queryInProc handles querying for container properties without reaching out to HCS. `props`
// will be updated to contain any data returned from the queries present in `types`. If any properties
// failed to be queried they will be tallied up and returned in as the first return value. Failures on
// query are NOT considered errors; the only failure case for this method is if the containers job object
// cannot be opened.
func (computeSystem *System) queryInProc(ctx context.Context, props *hcsschema.Properties, types []hcsschema.PropertyType) ([]hcsschema.PropertyType, error) {
// In the future we can make use of some new functionality in the HCS that allows you
// to pass a job object for HCS to use for the container. Currently, the only way we'll
// be able to open the job/silo is if we're running as SYSTEM.
jobOptions := &jobobject.Options{
UseNTVariant: true,
Name: siloNameFmt(computeSystem.id),
}
job, err := jobobject.Open(ctx, jobOptions)
if err != nil {
return nil, err
}
defer job.Close()
var fallbackQueryTypes []hcsschema.PropertyType
for _, propType := range types {
switch propType {
case hcsschema.PTStatistics:
// Handle a bad caller asking for the same type twice. No use in re-querying if this is
// filled in already.
if props.Statistics == nil {
props.Statistics, err = computeSystem.statisticsInProc(job)
if err != nil {
log.G(ctx).WithError(err).Warn("failed to get statistics in-proc")
fallbackQueryTypes = append(fallbackQueryTypes, propType)
}
}
default:
fallbackQueryTypes = append(fallbackQueryTypes, propType)
}
}
return fallbackQueryTypes, nil
}
// statisticsInProc emulates what HCS does to grab statistics for a given container with a small
// change to make grabbing the private working set total much more efficient.
func (computeSystem *System) statisticsInProc(job *jobobject.JobObject) (*hcsschema.Statistics, error) {
// Start timestamp for these stats before we grab them to match HCS
timestamp := time.Now()
memInfo, err := job.QueryMemoryStats()
if err != nil {
return nil, err
}
processorInfo, err := job.QueryProcessorStats()
if err != nil {
return nil, err
}
storageInfo, err := job.QueryStorageStats()
if err != nil {
return nil, err
}
// This calculates the private working set more efficiently than HCS does. HCS calls NtQuerySystemInformation
// with the class SystemProcessInformation which returns an array containing system information for *every*
// process running on the machine. They then grab the pids that are running in the container and filter down
// the entries in the array to only what's running in that silo and start tallying up the total. This doesn't
// work well as performance should get worse if more processess are running on the machine in general and not
// just in the container. All of the additional information besides the WorkingSetPrivateSize field is ignored
// as well which isn't great and is wasted work to fetch.
//
// HCS only let's you grab statistics in an all or nothing fashion, so we can't just grab the private
// working set ourselves and ask for everything else seperately. The optimization we can make here is
// to open the silo ourselves and do the same queries for the rest of the info, as well as calculating
// the private working set in a more efficient manner by:
//
// 1. Find the pids running in the silo
// 2. Get a process handle for every process (only need PROCESS_QUERY_LIMITED_INFORMATION access)
// 3. Call NtQueryInformationProcess on each process with the class ProcessVmCounters
// 4. Tally up the total using the field PrivateWorkingSetSize in VM_COUNTERS_EX2.
privateWorkingSet, err := job.QueryPrivateWorkingSet()
if err != nil {
return nil, err
}
return &hcsschema.Statistics{
Timestamp: timestamp,
ContainerStartTime: computeSystem.startTime,
Uptime100ns: uint64(time.Since(computeSystem.startTime).Nanoseconds()) / 100,
Memory: &hcsschema.MemoryStats{
MemoryUsageCommitBytes: memInfo.JobMemory,
MemoryUsageCommitPeakBytes: memInfo.PeakJobMemoryUsed,
MemoryUsagePrivateWorkingSetBytes: privateWorkingSet,
},
Processor: &hcsschema.ProcessorStats{
RuntimeKernel100ns: uint64(processorInfo.TotalKernelTime),
RuntimeUser100ns: uint64(processorInfo.TotalUserTime),
TotalRuntime100ns: uint64(processorInfo.TotalKernelTime + processorInfo.TotalUserTime),
},
Storage: &hcsschema.StorageStats{
ReadCountNormalized: uint64(storageInfo.ReadStats.IoCount),
ReadSizeBytes: storageInfo.ReadStats.TotalSize,
WriteCountNormalized: uint64(storageInfo.WriteStats.IoCount),
WriteSizeBytes: storageInfo.WriteStats.TotalSize,
},
}, nil
}
// hcsPropertiesV2Query is a helper to make a HcsGetComputeSystemProperties call using the V2 schema property types.
func (computeSystem *System) hcsPropertiesV2Query(ctx context.Context, types []hcsschema.PropertyType) (*hcsschema.Properties, error) {
operation := "hcs::System::PropertiesV2"
queryBytes, err := json.Marshal(hcsschema.PropertyQuery{PropertyTypes: types})
@@ -345,12 +461,66 @@ func (computeSystem *System) PropertiesV2(ctx context.Context, types ...hcsschem
if propertiesJSON == "" {
return nil, ErrUnexpectedValue
}
properties := &hcsschema.Properties{}
if err := json.Unmarshal([]byte(propertiesJSON), properties); err != nil {
props := &hcsschema.Properties{}
if err := json.Unmarshal([]byte(propertiesJSON), props); err != nil {
return nil, makeSystemError(computeSystem, operation, err, nil)
}
return properties, nil
return props, nil
}
// PropertiesV2 returns the requested compute systems properties targeting a V2 schema compute system.
func (computeSystem *System) PropertiesV2(ctx context.Context, types ...hcsschema.PropertyType) (_ *hcsschema.Properties, err error) {
computeSystem.handleLock.RLock()
defer computeSystem.handleLock.RUnlock()
// Let HCS tally up the total for VM based queries instead of querying ourselves.
if computeSystem.typ != "container" {
return computeSystem.hcsPropertiesV2Query(ctx, types)
}
// Define a starter Properties struct with the default fields returned from every
// query. Owner is only returned from Statistics but it's harmless to include.
properties := &hcsschema.Properties{
Id: computeSystem.id,
SystemType: computeSystem.typ,
RuntimeOsType: computeSystem.os,
Owner: computeSystem.owner,
}
logEntry := log.G(ctx)
// First lets try and query ourselves without reaching to HCS. If any of the queries fail
// we'll take note and fallback to querying HCS for any of the failed types.
fallbackTypes, err := computeSystem.queryInProc(ctx, properties, types)
if err == nil && len(fallbackTypes) == 0 {
return properties, nil
} else if err != nil {
logEntry.WithError(fmt.Errorf("failed to query compute system properties in-proc: %w", err))
fallbackTypes = types
}
logEntry.WithFields(logrus.Fields{
logfields.ContainerID: computeSystem.id,
"propertyTypes": fallbackTypes,
}).Info("falling back to HCS for property type queries")
hcsProperties, err := computeSystem.hcsPropertiesV2Query(ctx, fallbackTypes)
if err != nil {
return nil, err
}
// Now add in anything that we might have successfully queried in process.
if properties.Statistics != nil {
hcsProperties.Statistics = properties.Statistics
hcsProperties.Owner = properties.Owner
}
// For future support for querying processlist in-proc as well.
if properties.ProcessList != nil {
hcsProperties.ProcessList = properties.ProcessList
}
return hcsProperties, nil
}
// Pause pauses the execution of the computeSystem. This feature is not enabled in TP5.

View File

@@ -21,10 +21,11 @@ const (
)
type NatPolicy struct {
Type PolicyType `json:"Type"`
Protocol string `json:",omitempty"`
InternalPort uint16 `json:",omitempty"`
ExternalPort uint16 `json:",omitempty"`
Type PolicyType `json:"Type"`
Protocol string `json:",omitempty"`
InternalPort uint16 `json:",omitempty"`
ExternalPort uint16 `json:",omitempty"`
ExternalPortReserved bool `json:",omitempty"`
}
type QosPolicy struct {

View File

@@ -0,0 +1,111 @@
package jobobject
import (
"context"
"fmt"
"sync"
"unsafe"
"github.com/Microsoft/hcsshim/internal/log"
"github.com/Microsoft/hcsshim/internal/queue"
"github.com/Microsoft/hcsshim/internal/winapi"
"github.com/sirupsen/logrus"
"golang.org/x/sys/windows"
)
var (
ioInitOnce sync.Once
initIOErr error
// Global iocp handle that will be re-used for every job object
ioCompletionPort windows.Handle
// Mapping of job handle to queue to place notifications in.
jobMap sync.Map
)
// MsgAllProcessesExited is a type representing a message that every process in a job has exited.
type MsgAllProcessesExited struct{}
// MsgUnimplemented represents a message that we are aware of, but that isn't implemented currently.
// This should not be treated as an error.
type MsgUnimplemented struct{}
// pollIOCP polls the io completion port forever.
func pollIOCP(ctx context.Context, iocpHandle windows.Handle) {
var (
overlapped uintptr
code uint32
key uintptr
)
for {
err := windows.GetQueuedCompletionStatus(iocpHandle, &code, &key, (**windows.Overlapped)(unsafe.Pointer(&overlapped)), windows.INFINITE)
if err != nil {
log.G(ctx).WithError(err).Error("failed to poll for job object message")
continue
}
if val, ok := jobMap.Load(key); ok {
msq, ok := val.(*queue.MessageQueue)
if !ok {
log.G(ctx).WithField("value", msq).Warn("encountered non queue type in job map")
continue
}
notification, err := parseMessage(code, overlapped)
if err != nil {
log.G(ctx).WithFields(logrus.Fields{
"code": code,
"overlapped": overlapped,
}).Warn("failed to parse job object message")
continue
}
if err := msq.Write(notification); err == queue.ErrQueueClosed {
// Write will only return an error when the queue is closed.
// The only time a queue would ever be closed is when we call `Close` on
// the job it belongs to which also removes it from the jobMap, so something
// went wrong here. We can't return as this is reading messages for all jobs
// so just log it and move on.
log.G(ctx).WithFields(logrus.Fields{
"code": code,
"overlapped": overlapped,
}).Warn("tried to write to a closed queue")
continue
}
} else {
log.G(ctx).Warn("received a message for a job not present in the mapping")
}
}
}
func parseMessage(code uint32, overlapped uintptr) (interface{}, error) {
// Check code and parse out relevant information related to that notification
// that we care about. For now all we handle is the message that all processes
// in the job have exited.
switch code {
case winapi.JOB_OBJECT_MSG_ACTIVE_PROCESS_ZERO:
return MsgAllProcessesExited{}, nil
// Other messages for completeness and a check to make sure that if we fall
// into the default case that this is a code we don't know how to handle.
case winapi.JOB_OBJECT_MSG_END_OF_JOB_TIME:
case winapi.JOB_OBJECT_MSG_END_OF_PROCESS_TIME:
case winapi.JOB_OBJECT_MSG_ACTIVE_PROCESS_LIMIT:
case winapi.JOB_OBJECT_MSG_NEW_PROCESS:
case winapi.JOB_OBJECT_MSG_EXIT_PROCESS:
case winapi.JOB_OBJECT_MSG_ABNORMAL_EXIT_PROCESS:
case winapi.JOB_OBJECT_MSG_PROCESS_MEMORY_LIMIT:
case winapi.JOB_OBJECT_MSG_JOB_MEMORY_LIMIT:
case winapi.JOB_OBJECT_MSG_NOTIFICATION_LIMIT:
default:
return nil, fmt.Errorf("unknown job notification type: %d", code)
}
return MsgUnimplemented{}, nil
}
// Assigns an IO completion port to get notified of events for the registered job
// object.
func attachIOCP(job windows.Handle, iocp windows.Handle) error {
info := winapi.JOBOBJECT_ASSOCIATE_COMPLETION_PORT{
CompletionKey: job,
CompletionPort: iocp,
}
_, err := windows.SetInformationJobObject(job, windows.JobObjectAssociateCompletionPortInformation, uintptr(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)))
return err
}

View File

@@ -0,0 +1,499 @@
package jobobject
import (
"context"
"errors"
"fmt"
"sync"
"unsafe"
"github.com/Microsoft/hcsshim/internal/queue"
"github.com/Microsoft/hcsshim/internal/winapi"
"golang.org/x/sys/windows"
)
// This file provides higher level constructs for the win32 job object API.
// Most of the core creation and management functions are already present in "golang.org/x/sys/windows"
// (CreateJobObject, AssignProcessToJobObject, etc.) as well as most of the limit information
// structs and associated limit flags. Whatever is not present from the job object API
// in golang.org/x/sys/windows is located in /internal/winapi.
//
// https://docs.microsoft.com/en-us/windows/win32/procthread/job-objects
// JobObject is a high level wrapper around a Windows job object. Holds a handle to
// the job, a queue to receive iocp notifications about the lifecycle
// of the job and a mutex for synchronized handle access.
type JobObject struct {
handle windows.Handle
mq *queue.MessageQueue
handleLock sync.RWMutex
}
// JobLimits represents the resource constraints that can be applied to a job object.
type JobLimits struct {
CPULimit uint32
CPUWeight uint32
MemoryLimitInBytes uint64
MaxIOPS int64
MaxBandwidth int64
}
type CPURateControlType uint32
const (
WeightBased CPURateControlType = iota
RateBased
)
// Processor resource controls
const (
cpuLimitMin = 1
cpuLimitMax = 10000
cpuWeightMin = 1
cpuWeightMax = 9
)
var (
ErrAlreadyClosed = errors.New("the handle has already been closed")
ErrNotRegistered = errors.New("job is not registered to receive notifications")
)
// Options represents the set of configurable options when making or opening a job object.
type Options struct {
// `Name` specifies the name of the job object if a named job object is desired.
Name string
// `Notifications` specifies if the job will be registered to receive notifications.
// Defaults to false.
Notifications bool
// `UseNTVariant` specifies if we should use the `Nt` variant of Open/CreateJobObject.
// Defaults to false.
UseNTVariant bool
}
// Create creates a job object.
//
// If options.Name is an empty string, the job will not be assigned a name.
//
// If options.Notifications are not enabled `PollNotifications` will return immediately with error `errNotRegistered`.
//
// If `options` is nil, use default option values.
//
// Returns a JobObject structure and an error if there is one.
func Create(ctx context.Context, options *Options) (_ *JobObject, err error) {
if options == nil {
options = &Options{}
}
var jobName *winapi.UnicodeString
if options.Name != "" {
jobName, err = winapi.NewUnicodeString(options.Name)
if err != nil {
return nil, err
}
}
var jobHandle windows.Handle
if options.UseNTVariant {
oa := winapi.ObjectAttributes{
Length: unsafe.Sizeof(winapi.ObjectAttributes{}),
ObjectName: jobName,
Attributes: 0,
}
status := winapi.NtCreateJobObject(&jobHandle, winapi.JOB_OBJECT_ALL_ACCESS, &oa)
if status != 0 {
return nil, winapi.RtlNtStatusToDosError(status)
}
} else {
var jobNameBuf *uint16
if jobName != nil && jobName.Buffer != nil {
jobNameBuf = jobName.Buffer
}
jobHandle, err = windows.CreateJobObject(nil, jobNameBuf)
if err != nil {
return nil, err
}
}
defer func() {
if err != nil {
windows.Close(jobHandle)
}
}()
job := &JobObject{
handle: jobHandle,
}
// If the IOCP we'll be using to receive messages for all jobs hasn't been
// created, create it and start polling.
if options.Notifications {
mq, err := setupNotifications(ctx, job)
if err != nil {
return nil, err
}
job.mq = mq
}
return job, nil
}
// Open opens an existing job object with name provided in `options`. If no name is provided
// return an error since we need to know what job object to open.
//
// If options.Notifications is false `PollNotifications` will return immediately with error `errNotRegistered`.
//
// Returns a JobObject structure and an error if there is one.
func Open(ctx context.Context, options *Options) (_ *JobObject, err error) {
if options == nil || (options != nil && options.Name == "") {
return nil, errors.New("no job object name specified to open")
}
unicodeJobName, err := winapi.NewUnicodeString(options.Name)
if err != nil {
return nil, err
}
var jobHandle windows.Handle
if options != nil && options.UseNTVariant {
oa := winapi.ObjectAttributes{
Length: unsafe.Sizeof(winapi.ObjectAttributes{}),
ObjectName: unicodeJobName,
Attributes: 0,
}
status := winapi.NtOpenJobObject(&jobHandle, winapi.JOB_OBJECT_ALL_ACCESS, &oa)
if status != 0 {
return nil, winapi.RtlNtStatusToDosError(status)
}
} else {
jobHandle, err = winapi.OpenJobObject(winapi.JOB_OBJECT_ALL_ACCESS, false, unicodeJobName.Buffer)
if err != nil {
return nil, err
}
}
defer func() {
if err != nil {
windows.Close(jobHandle)
}
}()
job := &JobObject{
handle: jobHandle,
}
// If the IOCP we'll be using to receive messages for all jobs hasn't been
// created, create it and start polling.
if options != nil && options.Notifications {
mq, err := setupNotifications(ctx, job)
if err != nil {
return nil, err
}
job.mq = mq
}
return job, nil
}
// helper function to setup notifications for creating/opening a job object
func setupNotifications(ctx context.Context, job *JobObject) (*queue.MessageQueue, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
ioInitOnce.Do(func() {
h, err := windows.CreateIoCompletionPort(windows.InvalidHandle, 0, 0, 0xffffffff)
if err != nil {
initIOErr = err
return
}
ioCompletionPort = h
go pollIOCP(ctx, h)
})
if initIOErr != nil {
return nil, initIOErr
}
mq := queue.NewMessageQueue()
jobMap.Store(uintptr(job.handle), mq)
if err := attachIOCP(job.handle, ioCompletionPort); err != nil {
jobMap.Delete(uintptr(job.handle))
return nil, fmt.Errorf("failed to attach job to IO completion port: %w", err)
}
return mq, nil
}
// PollNotification will poll for a job object notification. This call should only be called once
// per job (ideally in a goroutine loop) and will block if there is not a notification ready.
// This call will return immediately with error `ErrNotRegistered` if the job was not registered
// to receive notifications during `Create`. Internally, messages will be queued and there
// is no worry of messages being dropped.
func (job *JobObject) PollNotification() (interface{}, error) {
if job.mq == nil {
return nil, ErrNotRegistered
}
return job.mq.ReadOrWait()
}
// UpdateProcThreadAttribute updates the passed in ProcThreadAttributeList to contain what is necessary to
// launch a process in a job at creation time. This can be used to avoid having to call Assign() after a process
// has already started running.
func (job *JobObject) UpdateProcThreadAttribute(attrList *windows.ProcThreadAttributeListContainer) error {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return ErrAlreadyClosed
}
if err := attrList.Update(
winapi.PROC_THREAD_ATTRIBUTE_JOB_LIST,
unsafe.Pointer(&job.handle),
unsafe.Sizeof(job.handle),
); err != nil {
return fmt.Errorf("failed to update proc thread attributes for job object: %w", err)
}
return nil
}
// Close closes the job object handle.
func (job *JobObject) Close() error {
job.handleLock.Lock()
defer job.handleLock.Unlock()
if job.handle == 0 {
return ErrAlreadyClosed
}
if err := windows.Close(job.handle); err != nil {
return err
}
if job.mq != nil {
job.mq.Close()
}
// Handles now invalid so if the map entry to receive notifications for this job still
// exists remove it so we can stop receiving notifications.
if _, ok := jobMap.Load(uintptr(job.handle)); ok {
jobMap.Delete(uintptr(job.handle))
}
job.handle = 0
return nil
}
// Assign assigns a process to the job object.
func (job *JobObject) Assign(pid uint32) error {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return ErrAlreadyClosed
}
if pid == 0 {
return errors.New("invalid pid: 0")
}
hProc, err := windows.OpenProcess(winapi.PROCESS_ALL_ACCESS, true, pid)
if err != nil {
return err
}
defer windows.Close(hProc)
return windows.AssignProcessToJobObject(job.handle, hProc)
}
// Terminate terminates the job, essentially calls TerminateProcess on every process in the
// job.
func (job *JobObject) Terminate(exitCode uint32) error {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return ErrAlreadyClosed
}
return windows.TerminateJobObject(job.handle, exitCode)
}
// Pids returns all of the process IDs in the job object.
func (job *JobObject) Pids() ([]uint32, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
info := winapi.JOBOBJECT_BASIC_PROCESS_ID_LIST{}
err := winapi.QueryInformationJobObject(
job.handle,
winapi.JobObjectBasicProcessIdList,
uintptr(unsafe.Pointer(&info)),
uint32(unsafe.Sizeof(info)),
nil,
)
// This is either the case where there is only one process or no processes in
// the job. Any other case will result in ERROR_MORE_DATA. Check if info.NumberOfProcessIdsInList
// is 1 and just return this, otherwise return an empty slice.
if err == nil {
if info.NumberOfProcessIdsInList == 1 {
return []uint32{uint32(info.ProcessIdList[0])}, nil
}
// Return empty slice instead of nil to play well with the caller of this.
// Do not return an error if no processes are running inside the job
return []uint32{}, nil
}
if err != winapi.ERROR_MORE_DATA {
return nil, fmt.Errorf("failed initial query for PIDs in job object: %w", err)
}
jobBasicProcessIDListSize := unsafe.Sizeof(info) + (unsafe.Sizeof(info.ProcessIdList[0]) * uintptr(info.NumberOfAssignedProcesses-1))
buf := make([]byte, jobBasicProcessIDListSize)
if err = winapi.QueryInformationJobObject(
job.handle,
winapi.JobObjectBasicProcessIdList,
uintptr(unsafe.Pointer(&buf[0])),
uint32(len(buf)),
nil,
); err != nil {
return nil, fmt.Errorf("failed to query for PIDs in job object: %w", err)
}
bufInfo := (*winapi.JOBOBJECT_BASIC_PROCESS_ID_LIST)(unsafe.Pointer(&buf[0]))
pids := make([]uint32, bufInfo.NumberOfProcessIdsInList)
for i, bufPid := range bufInfo.AllPids() {
pids[i] = uint32(bufPid)
}
return pids, nil
}
// QueryMemoryStats gets the memory stats for the job object.
func (job *JobObject) QueryMemoryStats() (*winapi.JOBOBJECT_MEMORY_USAGE_INFORMATION, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
info := winapi.JOBOBJECT_MEMORY_USAGE_INFORMATION{}
if err := winapi.QueryInformationJobObject(
job.handle,
winapi.JobObjectMemoryUsageInformation,
uintptr(unsafe.Pointer(&info)),
uint32(unsafe.Sizeof(info)),
nil,
); err != nil {
return nil, fmt.Errorf("failed to query for job object memory stats: %w", err)
}
return &info, nil
}
// QueryProcessorStats gets the processor stats for the job object.
func (job *JobObject) QueryProcessorStats() (*winapi.JOBOBJECT_BASIC_ACCOUNTING_INFORMATION, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
info := winapi.JOBOBJECT_BASIC_ACCOUNTING_INFORMATION{}
if err := winapi.QueryInformationJobObject(
job.handle,
winapi.JobObjectBasicAccountingInformation,
uintptr(unsafe.Pointer(&info)),
uint32(unsafe.Sizeof(info)),
nil,
); err != nil {
return nil, fmt.Errorf("failed to query for job object process stats: %w", err)
}
return &info, nil
}
// QueryStorageStats gets the storage (I/O) stats for the job object.
func (job *JobObject) QueryStorageStats() (*winapi.JOBOBJECT_IO_ATTRIBUTION_INFORMATION, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
info := winapi.JOBOBJECT_IO_ATTRIBUTION_INFORMATION{
ControlFlags: winapi.JOBOBJECT_IO_ATTRIBUTION_CONTROL_ENABLE,
}
if err := winapi.QueryInformationJobObject(
job.handle,
winapi.JobObjectIoAttribution,
uintptr(unsafe.Pointer(&info)),
uint32(unsafe.Sizeof(info)),
nil,
); err != nil {
return nil, fmt.Errorf("failed to query for job object storage stats: %w", err)
}
return &info, nil
}
// QueryPrivateWorkingSet returns the private working set size for the job. This is calculated by adding up the
// private working set for every process running in the job.
func (job *JobObject) QueryPrivateWorkingSet() (uint64, error) {
pids, err := job.Pids()
if err != nil {
return 0, err
}
openAndQueryWorkingSet := func(pid uint32) (uint64, error) {
h, err := windows.OpenProcess(windows.PROCESS_QUERY_LIMITED_INFORMATION, false, pid)
if err != nil {
// Continue to the next if OpenProcess doesn't return a valid handle (fails). Handles a
// case where one of the pids in the job exited before we open.
return 0, nil
}
defer func() {
_ = windows.Close(h)
}()
// Check if the process is actually running in the job still. There's a small chance
// that the process could have exited and had its pid re-used between grabbing the pids
// in the job and opening the handle to it above.
var inJob int32
if err := winapi.IsProcessInJob(h, job.handle, &inJob); err != nil {
// This shouldn't fail unless we have incorrect access rights which we control
// here so probably best to error out if this failed.
return 0, err
}
// Don't report stats for this process as it's not running in the job. This shouldn't be
// an error condition though.
if inJob == 0 {
return 0, nil
}
var vmCounters winapi.VM_COUNTERS_EX2
status := winapi.NtQueryInformationProcess(
h,
winapi.ProcessVmCounters,
uintptr(unsafe.Pointer(&vmCounters)),
uint32(unsafe.Sizeof(vmCounters)),
nil,
)
if !winapi.NTSuccess(status) {
return 0, fmt.Errorf("failed to query information for process: %w", winapi.RtlNtStatusToDosError(status))
}
return uint64(vmCounters.PrivateWorkingSetSize), nil
}
var jobWorkingSetSize uint64
for _, pid := range pids {
workingSet, err := openAndQueryWorkingSet(pid)
if err != nil {
return 0, err
}
jobWorkingSetSize += workingSet
}
return jobWorkingSetSize, nil
}

View File

@@ -0,0 +1,315 @@
package jobobject
import (
"errors"
"fmt"
"unsafe"
"github.com/Microsoft/hcsshim/internal/winapi"
"golang.org/x/sys/windows"
)
const (
memoryLimitMax uint64 = 0xffffffffffffffff
)
func isFlagSet(flag, controlFlags uint32) bool {
return (flag & controlFlags) == flag
}
// SetResourceLimits sets resource limits on the job object (cpu, memory, storage).
func (job *JobObject) SetResourceLimits(limits *JobLimits) error {
// Go through and check what limits were specified and apply them to the job.
if limits.MemoryLimitInBytes != 0 {
if err := job.SetMemoryLimit(limits.MemoryLimitInBytes); err != nil {
return fmt.Errorf("failed to set job object memory limit: %w", err)
}
}
if limits.CPULimit != 0 {
if err := job.SetCPULimit(RateBased, limits.CPULimit); err != nil {
return fmt.Errorf("failed to set job object cpu limit: %w", err)
}
} else if limits.CPUWeight != 0 {
if err := job.SetCPULimit(WeightBased, limits.CPUWeight); err != nil {
return fmt.Errorf("failed to set job object cpu limit: %w", err)
}
}
if limits.MaxBandwidth != 0 || limits.MaxIOPS != 0 {
if err := job.SetIOLimit(limits.MaxBandwidth, limits.MaxIOPS); err != nil {
return fmt.Errorf("failed to set io limit on job object: %w", err)
}
}
return nil
}
// SetTerminateOnLastHandleClose sets the job object flag that specifies that the job should terminate
// all processes in the job on the last open handle being closed.
func (job *JobObject) SetTerminateOnLastHandleClose() error {
info, err := job.getExtendedInformation()
if err != nil {
return err
}
info.BasicLimitInformation.LimitFlags |= windows.JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE
return job.setExtendedInformation(info)
}
// SetMemoryLimit sets the memory limit of the job object based on the given `memoryLimitInBytes`.
func (job *JobObject) SetMemoryLimit(memoryLimitInBytes uint64) error {
if memoryLimitInBytes >= memoryLimitMax {
return errors.New("memory limit specified exceeds the max size")
}
info, err := job.getExtendedInformation()
if err != nil {
return err
}
info.JobMemoryLimit = uintptr(memoryLimitInBytes)
info.BasicLimitInformation.LimitFlags |= windows.JOB_OBJECT_LIMIT_JOB_MEMORY
return job.setExtendedInformation(info)
}
// GetMemoryLimit gets the memory limit in bytes of the job object.
func (job *JobObject) GetMemoryLimit() (uint64, error) {
info, err := job.getExtendedInformation()
if err != nil {
return 0, err
}
return uint64(info.JobMemoryLimit), nil
}
// SetCPULimit sets the CPU limit depending on the specified `CPURateControlType` to
// `rateControlValue` for the job object.
func (job *JobObject) SetCPULimit(rateControlType CPURateControlType, rateControlValue uint32) error {
cpuInfo, err := job.getCPURateControlInformation()
if err != nil {
return err
}
switch rateControlType {
case WeightBased:
if rateControlValue < cpuWeightMin || rateControlValue > cpuWeightMax {
return fmt.Errorf("processor weight value of `%d` is invalid", rateControlValue)
}
cpuInfo.ControlFlags |= winapi.JOB_OBJECT_CPU_RATE_CONTROL_ENABLE | winapi.JOB_OBJECT_CPU_RATE_CONTROL_WEIGHT_BASED
cpuInfo.Value = rateControlValue
case RateBased:
if rateControlValue < cpuLimitMin || rateControlValue > cpuLimitMax {
return fmt.Errorf("processor rate of `%d` is invalid", rateControlValue)
}
cpuInfo.ControlFlags |= winapi.JOB_OBJECT_CPU_RATE_CONTROL_ENABLE | winapi.JOB_OBJECT_CPU_RATE_CONTROL_HARD_CAP
cpuInfo.Value = rateControlValue
default:
return errors.New("invalid job object cpu rate control type")
}
return job.setCPURateControlInfo(cpuInfo)
}
// GetCPULimit gets the cpu limits for the job object.
// `rateControlType` is used to indicate what type of cpu limit to query for.
func (job *JobObject) GetCPULimit(rateControlType CPURateControlType) (uint32, error) {
info, err := job.getCPURateControlInformation()
if err != nil {
return 0, err
}
if !isFlagSet(winapi.JOB_OBJECT_CPU_RATE_CONTROL_ENABLE, info.ControlFlags) {
return 0, errors.New("the job does not have cpu rate control enabled")
}
switch rateControlType {
case WeightBased:
if !isFlagSet(winapi.JOB_OBJECT_CPU_RATE_CONTROL_WEIGHT_BASED, info.ControlFlags) {
return 0, errors.New("cannot get cpu weight for job object without cpu weight option set")
}
case RateBased:
if !isFlagSet(winapi.JOB_OBJECT_CPU_RATE_CONTROL_HARD_CAP, info.ControlFlags) {
return 0, errors.New("cannot get cpu rate hard cap for job object without cpu rate hard cap option set")
}
default:
return 0, errors.New("invalid job object cpu rate control type")
}
return info.Value, nil
}
// SetCPUAffinity sets the processor affinity for the job object.
// The affinity is passed in as a bitmask.
func (job *JobObject) SetCPUAffinity(affinityBitMask uint64) error {
info, err := job.getExtendedInformation()
if err != nil {
return err
}
info.BasicLimitInformation.LimitFlags |= uint32(windows.JOB_OBJECT_LIMIT_AFFINITY)
info.BasicLimitInformation.Affinity = uintptr(affinityBitMask)
return job.setExtendedInformation(info)
}
// GetCPUAffinity gets the processor affinity for the job object.
// The returned affinity is a bitmask.
func (job *JobObject) GetCPUAffinity() (uint64, error) {
info, err := job.getExtendedInformation()
if err != nil {
return 0, err
}
return uint64(info.BasicLimitInformation.Affinity), nil
}
// SetIOLimit sets the IO limits specified on the job object.
func (job *JobObject) SetIOLimit(maxBandwidth, maxIOPS int64) error {
ioInfo, err := job.getIOLimit()
if err != nil {
return err
}
ioInfo.ControlFlags |= winapi.JOB_OBJECT_IO_RATE_CONTROL_ENABLE
if maxBandwidth != 0 {
ioInfo.MaxBandwidth = maxBandwidth
}
if maxIOPS != 0 {
ioInfo.MaxIops = maxIOPS
}
return job.setIORateControlInfo(ioInfo)
}
// GetIOMaxBandwidthLimit gets the max bandwidth for the job object.
func (job *JobObject) GetIOMaxBandwidthLimit() (int64, error) {
info, err := job.getIOLimit()
if err != nil {
return 0, err
}
return info.MaxBandwidth, nil
}
// GetIOMaxIopsLimit gets the max iops for the job object.
func (job *JobObject) GetIOMaxIopsLimit() (int64, error) {
info, err := job.getIOLimit()
if err != nil {
return 0, err
}
return info.MaxIops, nil
}
// Helper function for getting a job object's extended information.
func (job *JobObject) getExtendedInformation() (*windows.JOBOBJECT_EXTENDED_LIMIT_INFORMATION, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
info := windows.JOBOBJECT_EXTENDED_LIMIT_INFORMATION{}
if err := winapi.QueryInformationJobObject(
job.handle,
windows.JobObjectExtendedLimitInformation,
uintptr(unsafe.Pointer(&info)),
uint32(unsafe.Sizeof(info)),
nil,
); err != nil {
return nil, fmt.Errorf("query %v returned error: %w", info, err)
}
return &info, nil
}
// Helper function for getting a job object's CPU rate control information.
func (job *JobObject) getCPURateControlInformation() (*winapi.JOBOBJECT_CPU_RATE_CONTROL_INFORMATION, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
info := winapi.JOBOBJECT_CPU_RATE_CONTROL_INFORMATION{}
if err := winapi.QueryInformationJobObject(
job.handle,
windows.JobObjectCpuRateControlInformation,
uintptr(unsafe.Pointer(&info)),
uint32(unsafe.Sizeof(info)),
nil,
); err != nil {
return nil, fmt.Errorf("query %v returned error: %w", info, err)
}
return &info, nil
}
// Helper function for setting a job object's extended information.
func (job *JobObject) setExtendedInformation(info *windows.JOBOBJECT_EXTENDED_LIMIT_INFORMATION) error {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return ErrAlreadyClosed
}
if _, err := windows.SetInformationJobObject(
job.handle,
windows.JobObjectExtendedLimitInformation,
uintptr(unsafe.Pointer(info)),
uint32(unsafe.Sizeof(*info)),
); err != nil {
return fmt.Errorf("failed to set Extended info %v on job object: %w", info, err)
}
return nil
}
// Helper function for querying job handle for IO limit information.
func (job *JobObject) getIOLimit() (*winapi.JOBOBJECT_IO_RATE_CONTROL_INFORMATION, error) {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return nil, ErrAlreadyClosed
}
ioInfo := &winapi.JOBOBJECT_IO_RATE_CONTROL_INFORMATION{}
var blockCount uint32 = 1
if _, err := winapi.QueryIoRateControlInformationJobObject(
job.handle,
nil,
&ioInfo,
&blockCount,
); err != nil {
return nil, fmt.Errorf("query %v returned error: %w", ioInfo, err)
}
if !isFlagSet(winapi.JOB_OBJECT_IO_RATE_CONTROL_ENABLE, ioInfo.ControlFlags) {
return nil, fmt.Errorf("query %v cannot get IO limits for job object without IO rate control option set", ioInfo)
}
return ioInfo, nil
}
// Helper function for setting a job object's IO rate control information.
func (job *JobObject) setIORateControlInfo(ioInfo *winapi.JOBOBJECT_IO_RATE_CONTROL_INFORMATION) error {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return ErrAlreadyClosed
}
if _, err := winapi.SetIoRateControlInformationJobObject(job.handle, ioInfo); err != nil {
return fmt.Errorf("failed to set IO limit info %v on job object: %w", ioInfo, err)
}
return nil
}
// Helper function for setting a job object's CPU rate control information.
func (job *JobObject) setCPURateControlInfo(cpuInfo *winapi.JOBOBJECT_CPU_RATE_CONTROL_INFORMATION) error {
job.handleLock.RLock()
defer job.handleLock.RUnlock()
if job.handle == 0 {
return ErrAlreadyClosed
}
if _, err := windows.SetInformationJobObject(
job.handle,
windows.JobObjectCpuRateControlInformation,
uintptr(unsafe.Pointer(cpuInfo)),
uint32(unsafe.Sizeof(cpuInfo)),
); err != nil {
return fmt.Errorf("failed to set cpu limit info %v on job object: %w", cpuInfo, err)
}
return nil
}

View File

@@ -0,0 +1,111 @@
package queue
import (
"errors"
"sync"
)
var (
ErrQueueClosed = errors.New("the queue is closed for reading and writing")
ErrQueueEmpty = errors.New("the queue is empty")
)
// MessageQueue represents a threadsafe message queue to be used to retrieve or
// write messages to.
type MessageQueue struct {
m *sync.RWMutex
c *sync.Cond
messages []interface{}
closed bool
}
// NewMessageQueue returns a new MessageQueue.
func NewMessageQueue() *MessageQueue {
m := &sync.RWMutex{}
return &MessageQueue{
m: m,
c: sync.NewCond(m),
messages: []interface{}{},
}
}
// Write writes `msg` to the queue.
func (mq *MessageQueue) Write(msg interface{}) error {
mq.m.Lock()
defer mq.m.Unlock()
if mq.closed {
return ErrQueueClosed
}
mq.messages = append(mq.messages, msg)
// Signal a waiter that there is now a value available in the queue.
mq.c.Signal()
return nil
}
// Read will read a value from the queue if available, otherwise return an error.
func (mq *MessageQueue) Read() (interface{}, error) {
mq.m.Lock()
defer mq.m.Unlock()
if mq.closed {
return nil, ErrQueueClosed
}
if mq.isEmpty() {
return nil, ErrQueueEmpty
}
val := mq.messages[0]
mq.messages[0] = nil
mq.messages = mq.messages[1:]
return val, nil
}
// ReadOrWait will read a value from the queue if available, else it will wait for a
// value to become available. This will block forever if nothing gets written or until
// the queue gets closed.
func (mq *MessageQueue) ReadOrWait() (interface{}, error) {
mq.m.Lock()
if mq.closed {
mq.m.Unlock()
return nil, ErrQueueClosed
}
if mq.isEmpty() {
for !mq.closed && mq.isEmpty() {
mq.c.Wait()
}
mq.m.Unlock()
return mq.Read()
}
val := mq.messages[0]
mq.messages[0] = nil
mq.messages = mq.messages[1:]
mq.m.Unlock()
return val, nil
}
// IsEmpty returns if the queue is empty
func (mq *MessageQueue) IsEmpty() bool {
mq.m.RLock()
defer mq.m.RUnlock()
return len(mq.messages) == 0
}
// Nonexported empty check that doesn't lock so we can call this in Read and Write.
func (mq *MessageQueue) isEmpty() bool {
return len(mq.messages) == 0
}
// Close closes the queue for future writes or reads. Any attempts to read or write from the
// queue after close will return ErrQueueClosed. This is safe to call multiple times.
func (mq *MessageQueue) Close() {
mq.m.Lock()
defer mq.m.Unlock()
// Already closed
if mq.closed {
return
}
mq.messages = nil
mq.closed = true
// If there's anybody currently waiting on a value from ReadOrWait, we need to
// broadcast so the read(s) can return ErrQueueClosed.
mq.c.Broadcast()
}

View File

@@ -1,3 +0,0 @@
package winapi
//sys GetQueuedCompletionStatus(cphandle windows.Handle, qty *uint32, key *uintptr, overlapped **windows.Overlapped, timeout uint32) (err error)

View File

@@ -24,7 +24,10 @@ const (
// Access rights for creating or opening job objects.
//
// https://docs.microsoft.com/en-us/windows/win32/procthread/job-object-security-and-access-rights
const JOB_OBJECT_ALL_ACCESS = 0x1F001F
const (
JOB_OBJECT_QUERY = 0x0004
JOB_OBJECT_ALL_ACCESS = 0x1F001F
)
// IO limit flags
//
@@ -93,7 +96,7 @@ type JOBOBJECT_BASIC_PROCESS_ID_LIST struct {
// AllPids returns all the process Ids in the job object.
func (p *JOBOBJECT_BASIC_PROCESS_ID_LIST) AllPids() []uintptr {
return (*[(1 << 27) - 1]uintptr)(unsafe.Pointer(&p.ProcessIdList[0]))[:p.NumberOfProcessIdsInList]
return (*[(1 << 27) - 1]uintptr)(unsafe.Pointer(&p.ProcessIdList[0]))[:p.NumberOfProcessIdsInList:p.NumberOfProcessIdsInList]
}
// https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-jobobject_basic_accounting_information
@@ -162,7 +165,7 @@ type JOBOBJECT_ASSOCIATE_COMPLETION_PORT struct {
// PBOOL Result
// );
//
//sys IsProcessInJob(procHandle windows.Handle, jobHandle windows.Handle, result *bool) (err error) = kernel32.IsProcessInJob
//sys IsProcessInJob(procHandle windows.Handle, jobHandle windows.Handle, result *int32) (err error) = kernel32.IsProcessInJob
// BOOL QueryInformationJobObject(
// HANDLE hJob,

View File

@@ -6,3 +6,60 @@ const (
PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE = 0x20016
PROC_THREAD_ATTRIBUTE_JOB_LIST = 0x2000D
)
// ProcessVmCounters corresponds to the _VM_COUNTERS_EX and _VM_COUNTERS_EX2 structures.
const ProcessVmCounters = 3
// __kernel_entry NTSTATUS NtQueryInformationProcess(
// [in] HANDLE ProcessHandle,
// [in] PROCESSINFOCLASS ProcessInformationClass,
// [out] PVOID ProcessInformation,
// [in] ULONG ProcessInformationLength,
// [out, optional] PULONG ReturnLength
// );
//
//sys NtQueryInformationProcess(processHandle windows.Handle, processInfoClass uint32, processInfo uintptr, processInfoLength uint32, returnLength *uint32) (status uint32) = ntdll.NtQueryInformationProcess
// typedef struct _VM_COUNTERS_EX
// {
// SIZE_T PeakVirtualSize;
// SIZE_T VirtualSize;
// ULONG PageFaultCount;
// SIZE_T PeakWorkingSetSize;
// SIZE_T WorkingSetSize;
// SIZE_T QuotaPeakPagedPoolUsage;
// SIZE_T QuotaPagedPoolUsage;
// SIZE_T QuotaPeakNonPagedPoolUsage;
// SIZE_T QuotaNonPagedPoolUsage;
// SIZE_T PagefileUsage;
// SIZE_T PeakPagefileUsage;
// SIZE_T PrivateUsage;
// } VM_COUNTERS_EX, *PVM_COUNTERS_EX;
//
type VM_COUNTERS_EX struct {
PeakVirtualSize uintptr
VirtualSize uintptr
PageFaultCount uint32
PeakWorkingSetSize uintptr
WorkingSetSize uintptr
QuotaPeakPagedPoolUsage uintptr
QuotaPagedPoolUsage uintptr
QuotaPeakNonPagedPoolUsage uintptr
QuotaNonPagedPoolUsage uintptr
PagefileUsage uintptr
PeakPagefileUsage uintptr
PrivateUsage uintptr
}
// typedef struct _VM_COUNTERS_EX2
// {
// VM_COUNTERS_EX CountersEx;
// SIZE_T PrivateWorkingSetSize;
// SIZE_T SharedCommitUsage;
// } VM_COUNTERS_EX2, *PVM_COUNTERS_EX2;
//
type VM_COUNTERS_EX2 struct {
CountersEx VM_COUNTERS_EX
PrivateWorkingSetSize uintptr
SharedCommitUsage uintptr
}

View File

@@ -2,4 +2,4 @@
// be thought of as an extension to golang.org/x/sys/windows.
package winapi
//go:generate go run ..\..\mksyscall_windows.go -output zsyscall_windows.go console.go system.go net.go path.go thread.go iocp.go jobobject.go logon.go memory.go process.go processor.go devices.go filesystem.go errors.go
//go:generate go run ..\..\mksyscall_windows.go -output zsyscall_windows.go user.go console.go system.go net.go path.go thread.go jobobject.go logon.go memory.go process.go processor.go devices.go filesystem.go errors.go

View File

@@ -50,7 +50,6 @@ var (
procSetJobCompartmentId = modiphlpapi.NewProc("SetJobCompartmentId")
procSearchPathW = modkernel32.NewProc("SearchPathW")
procCreateRemoteThread = modkernel32.NewProc("CreateRemoteThread")
procGetQueuedCompletionStatus = modkernel32.NewProc("GetQueuedCompletionStatus")
procIsProcessInJob = modkernel32.NewProc("IsProcessInJob")
procQueryInformationJobObject = modkernel32.NewProc("QueryInformationJobObject")
procOpenJobObjectW = modkernel32.NewProc("OpenJobObjectW")
@@ -61,6 +60,7 @@ var (
procLogonUserW = modadvapi32.NewProc("LogonUserW")
procLocalAlloc = modkernel32.NewProc("LocalAlloc")
procLocalFree = modkernel32.NewProc("LocalFree")
procNtQueryInformationProcess = modntdll.NewProc("NtQueryInformationProcess")
procGetActiveProcessorCount = modkernel32.NewProc("GetActiveProcessorCount")
procCM_Get_Device_ID_List_SizeA = modcfgmgr32.NewProc("CM_Get_Device_ID_List_SizeA")
procCM_Get_Device_ID_ListA = modcfgmgr32.NewProc("CM_Get_Device_ID_ListA")
@@ -140,19 +140,7 @@ func CreateRemoteThread(process windows.Handle, sa *windows.SecurityAttributes,
return
}
func GetQueuedCompletionStatus(cphandle windows.Handle, qty *uint32, key *uintptr, overlapped **windows.Overlapped, timeout uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procGetQueuedCompletionStatus.Addr(), 5, uintptr(cphandle), uintptr(unsafe.Pointer(qty)), uintptr(unsafe.Pointer(key)), uintptr(unsafe.Pointer(overlapped)), uintptr(timeout), 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func IsProcessInJob(procHandle windows.Handle, jobHandle windows.Handle, result *bool) (err error) {
func IsProcessInJob(procHandle windows.Handle, jobHandle windows.Handle, result *int32) (err error) {
r1, _, e1 := syscall.Syscall(procIsProcessInJob.Addr(), 3, uintptr(procHandle), uintptr(jobHandle), uintptr(unsafe.Pointer(result)))
if r1 == 0 {
if e1 != 0 {
@@ -256,6 +244,12 @@ func LocalFree(ptr uintptr) {
return
}
func NtQueryInformationProcess(processHandle windows.Handle, processInfoClass uint32, processInfo uintptr, processInfoLength uint32, returnLength *uint32) (status uint32) {
r0, _, _ := syscall.Syscall6(procNtQueryInformationProcess.Addr(), 5, uintptr(processHandle), uintptr(processInfoClass), uintptr(processInfo), uintptr(processInfoLength), uintptr(unsafe.Pointer(returnLength)), 0)
status = uint32(r0)
return
}
func GetActiveProcessorCount(groupNumber uint16) (amount uint32) {
r0, _, _ := syscall.Syscall(procGetActiveProcessorCount.Addr(), 1, uintptr(groupNumber), 0, 0)
amount = uint32(r0)

View File

@@ -5,6 +5,7 @@
*.so
*.dylib
*.o
!*_bpf*.o
# Test binary, build with `go test -c`
*.test

View File

@@ -24,6 +24,5 @@ linters:
# Could be enabled later:
# - gocyclo
# - prealloc
# - maligned
# - gosec

View File

@@ -57,7 +57,7 @@ Objects
loading a spec will fail because the kernel is too old, or a feature is not
enabled. There are multiple ways the library deals with that:
* Fallback: older kernels don't allowing naming programs and maps. The library
* Fallback: older kernels don't allow naming programs and maps. The library
automatically detects support for names, and omits them during load if
necessary. This works since name is primarily a debug aid.
@@ -68,7 +68,7 @@ enabled. There are multiple ways the library deals with that:
Once program and map objects are loaded they expose the kernel's low-level API,
e.g. `NextKey`. Often this API is awkward to use in Go, so there are safer
wrappers on top of the low-level API, like `MapIterator`. The low-level API is
useful as an out when our higher-level API doesn't support a particular use case.
useful when our higher-level API doesn't support a particular use case.
Links
---

View File

@@ -6,8 +6,8 @@ are welcome. Please take a look at [the architecture](ARCHITECTURE.md) to get
a better understanding for the high-level goals.
New features must be accompanied by tests. Before starting work on any large
feature, please [join](https://cilium.herokuapp.com/) the
[#libbpf-go](https://cilium.slack.com/messages/libbpf-go) channel on Slack to
feature, please [join](https://ebpf.io/slack) the
[#ebpf-go](https://cilium.slack.com/messages/ebpf-go) channel on Slack to
discuss the design first.
When submitting pull requests, consider writing details about what problem you

View File

@@ -18,11 +18,14 @@ TARGETS := \
testdata/loader-clang-7 \
testdata/loader-clang-9 \
testdata/loader-$(CLANG) \
testdata/btf_map_init \
testdata/invalid_map \
testdata/raw_tracepoint \
testdata/invalid_map_static \
testdata/initialized_btf_map \
testdata/invalid_btf_map_init \
testdata/strings \
testdata/freplace \
testdata/iproute2_map_compat \
internal/btf/testdata/relocs
.PHONY: all clean docker-all docker-shell

View File

@@ -2,28 +2,16 @@
[![PkgGoDev](https://pkg.go.dev/badge/github.com/cilium/ebpf)](https://pkg.go.dev/github.com/cilium/ebpf)
![HoneyGopher](.github/images/cilium-ebpf.png)
eBPF is a pure Go library that provides utilities for loading, compiling, and
debugging eBPF programs. It has minimal external dependencies and is intended to
be used in long running processes.
* [asm](https://pkg.go.dev/github.com/cilium/ebpf/asm) contains a basic
assembler
* [link](https://pkg.go.dev/github.com/cilium/ebpf/link) allows attaching eBPF
to various hooks
* [perf](https://pkg.go.dev/github.com/cilium/ebpf/perf) allows reading from a
`PERF_EVENT_ARRAY`
* [cmd/bpf2go](https://pkg.go.dev/github.com/cilium/ebpf/cmd/bpf2go) allows
compiling and embedding eBPF programs in Go code
The library is maintained by [Cloudflare](https://www.cloudflare.com) and
[Cilium](https://www.cilium.io). Feel free to
[join](https://cilium.herokuapp.com/) the
[#libbpf-go](https://cilium.slack.com/messages/libbpf-go) channel on Slack.
[Cilium](https://www.cilium.io).
## Current status
The package is production ready, but **the API is explicitly unstable right
now**. Expect to update your code if you want to follow along.
See [ebpf.io](https://ebpf.io) for other projects from the eBPF ecosystem.
## Getting Started
@@ -33,21 +21,37 @@ your own tools can be found under [examples/](examples/).
Contributions are highly encouraged, as they highlight certain use cases of
eBPF and the library, and help shape the future of the project.
## Getting Help
Please
[join](https://ebpf.io/slack) the
[#ebpf-go](https://cilium.slack.com/messages/ebpf-go) channel on Slack if you
have questions regarding the library.
## Packages
This library includes the following packages:
* [asm](https://pkg.go.dev/github.com/cilium/ebpf/asm) contains a basic
assembler, allowing you to write eBPF assembly instructions directly
within your Go code. (You don't need to use this if you prefer to write your eBPF program in C.)
* [cmd/bpf2go](https://pkg.go.dev/github.com/cilium/ebpf/cmd/bpf2go) allows
compiling and embedding eBPF programs written in C within Go code. As well as
compiling the C code, it auto-generates Go code for loading and manipulating
the eBPF program and map objects.
* [link](https://pkg.go.dev/github.com/cilium/ebpf/link) allows attaching eBPF
to various hooks
* [perf](https://pkg.go.dev/github.com/cilium/ebpf/perf) allows reading from a
`PERF_EVENT_ARRAY`
* [ringbuf](https://pkg.go.dev/github.com/cilium/ebpf/ringbuf) allows reading from a
`BPF_MAP_TYPE_RINGBUF` map
## Requirements
* A version of Go that is [supported by
upstream](https://golang.org/doc/devel/release.html#policy)
* Linux 4.9, 4.19 or 5.4 (versions in-between should work, but are not tested)
## Useful resources
* [eBPF.io](https://ebpf.io) (recommended)
* [Cilium eBPF documentation](https://docs.cilium.io/en/latest/bpf/#bpf-guide)
(recommended)
* [Linux documentation on
BPF](https://www.kernel.org/doc/html/latest/networking/filter.html)
* [eBPF features by Linux
version](https://github.com/iovisor/bcc/blob/master/docs/kernel-versions.md)
* Linux >= 4.9. CI is run against LTS releases.
## Regenerating Testdata
@@ -60,3 +64,7 @@ The toolchain image build files are kept in [testdata/docker/](testdata/docker/)
## License
MIT
### eBPF Gopher
The eBPF honeygopher is based on the Go gopher designed by Renee French.

View File

@@ -184,6 +184,12 @@ const (
FnKtimeGetCoarseNs
FnImaInodeHash
FnSockFromFile
FnCheckMtu
FnForEachMapElem
FnSnprintf
FnSysBpf
FnBtfFindByNameKind
FnSysClose
)
// Call emits a function call.

View File

@@ -171,11 +171,17 @@ func _() {
_ = x[FnKtimeGetCoarseNs-160]
_ = x[FnImaInodeHash-161]
_ = x[FnSockFromFile-162]
_ = x[FnCheckMtu-163]
_ = x[FnForEachMapElem-164]
_ = x[FnSnprintf-165]
_ = x[FnSysBpf-166]
_ = x[FnBtfFindByNameKind-167]
_ = x[FnSysClose-168]
}
const _BuiltinFunc_name = "FnUnspecFnMapLookupElemFnMapUpdateElemFnMapDeleteElemFnProbeReadFnKtimeGetNsFnTracePrintkFnGetPrandomU32FnGetSmpProcessorIdFnSkbStoreBytesFnL3CsumReplaceFnL4CsumReplaceFnTailCallFnCloneRedirectFnGetCurrentPidTgidFnGetCurrentUidGidFnGetCurrentCommFnGetCgroupClassidFnSkbVlanPushFnSkbVlanPopFnSkbGetTunnelKeyFnSkbSetTunnelKeyFnPerfEventReadFnRedirectFnGetRouteRealmFnPerfEventOutputFnSkbLoadBytesFnGetStackidFnCsumDiffFnSkbGetTunnelOptFnSkbSetTunnelOptFnSkbChangeProtoFnSkbChangeTypeFnSkbUnderCgroupFnGetHashRecalcFnGetCurrentTaskFnProbeWriteUserFnCurrentTaskUnderCgroupFnSkbChangeTailFnSkbPullDataFnCsumUpdateFnSetHashInvalidFnGetNumaNodeIdFnSkbChangeHeadFnXdpAdjustHeadFnProbeReadStrFnGetSocketCookieFnGetSocketUidFnSetHashFnSetsockoptFnSkbAdjustRoomFnRedirectMapFnSkRedirectMapFnSockMapUpdateFnXdpAdjustMetaFnPerfEventReadValueFnPerfProgReadValueFnGetsockoptFnOverrideReturnFnSockOpsCbFlagsSetFnMsgRedirectMapFnMsgApplyBytesFnMsgCorkBytesFnMsgPullDataFnBindFnXdpAdjustTailFnSkbGetXfrmStateFnGetStackFnSkbLoadBytesRelativeFnFibLookupFnSockHashUpdateFnMsgRedirectHashFnSkRedirectHashFnLwtPushEncapFnLwtSeg6StoreBytesFnLwtSeg6AdjustSrhFnLwtSeg6ActionFnRcRepeatFnRcKeydownFnSkbCgroupIdFnGetCurrentCgroupIdFnGetLocalStorageFnSkSelectReuseportFnSkbAncestorCgroupIdFnSkLookupTcpFnSkLookupUdpFnSkReleaseFnMapPushElemFnMapPopElemFnMapPeekElemFnMsgPushDataFnMsgPopDataFnRcPointerRelFnSpinLockFnSpinUnlockFnSkFullsockFnTcpSockFnSkbEcnSetCeFnGetListenerSockFnSkcLookupTcpFnTcpCheckSyncookieFnSysctlGetNameFnSysctlGetCurrentValueFnSysctlGetNewValueFnSysctlSetNewValueFnStrtolFnStrtoulFnSkStorageGetFnSkStorageDeleteFnSendSignalFnTcpGenSyncookieFnSkbOutputFnProbeReadUserFnProbeReadKernelFnProbeReadUserStrFnProbeReadKernelStrFnTcpSendAckFnSendSignalThreadFnJiffies64FnReadBranchRecordsFnGetNsCurrentPidTgidFnXdpOutputFnGetNetnsCookieFnGetCurrentAncestorCgroupIdFnSkAssignFnKtimeGetBootNsFnSeqPrintfFnSeqWriteFnSkCgroupIdFnSkAncestorCgroupIdFnRingbufOutputFnRingbufReserveFnRingbufSubmitFnRingbufDiscardFnRingbufQueryFnCsumLevelFnSkcToTcp6SockFnSkcToTcpSockFnSkcToTcpTimewaitSockFnSkcToTcpRequestSockFnSkcToUdp6SockFnGetTaskStackFnLoadHdrOptFnStoreHdrOptFnReserveHdrOptFnInodeStorageGetFnInodeStorageDeleteFnDPathFnCopyFromUserFnSnprintfBtfFnSeqPrintfBtfFnSkbCgroupClassidFnRedirectNeighFnPerCpuPtrFnThisCpuPtrFnRedirectPeerFnTaskStorageGetFnTaskStorageDeleteFnGetCurrentTaskBtfFnBprmOptsSetFnKtimeGetCoarseNsFnImaInodeHashFnSockFromFile"
const _BuiltinFunc_name = "FnUnspecFnMapLookupElemFnMapUpdateElemFnMapDeleteElemFnProbeReadFnKtimeGetNsFnTracePrintkFnGetPrandomU32FnGetSmpProcessorIdFnSkbStoreBytesFnL3CsumReplaceFnL4CsumReplaceFnTailCallFnCloneRedirectFnGetCurrentPidTgidFnGetCurrentUidGidFnGetCurrentCommFnGetCgroupClassidFnSkbVlanPushFnSkbVlanPopFnSkbGetTunnelKeyFnSkbSetTunnelKeyFnPerfEventReadFnRedirectFnGetRouteRealmFnPerfEventOutputFnSkbLoadBytesFnGetStackidFnCsumDiffFnSkbGetTunnelOptFnSkbSetTunnelOptFnSkbChangeProtoFnSkbChangeTypeFnSkbUnderCgroupFnGetHashRecalcFnGetCurrentTaskFnProbeWriteUserFnCurrentTaskUnderCgroupFnSkbChangeTailFnSkbPullDataFnCsumUpdateFnSetHashInvalidFnGetNumaNodeIdFnSkbChangeHeadFnXdpAdjustHeadFnProbeReadStrFnGetSocketCookieFnGetSocketUidFnSetHashFnSetsockoptFnSkbAdjustRoomFnRedirectMapFnSkRedirectMapFnSockMapUpdateFnXdpAdjustMetaFnPerfEventReadValueFnPerfProgReadValueFnGetsockoptFnOverrideReturnFnSockOpsCbFlagsSetFnMsgRedirectMapFnMsgApplyBytesFnMsgCorkBytesFnMsgPullDataFnBindFnXdpAdjustTailFnSkbGetXfrmStateFnGetStackFnSkbLoadBytesRelativeFnFibLookupFnSockHashUpdateFnMsgRedirectHashFnSkRedirectHashFnLwtPushEncapFnLwtSeg6StoreBytesFnLwtSeg6AdjustSrhFnLwtSeg6ActionFnRcRepeatFnRcKeydownFnSkbCgroupIdFnGetCurrentCgroupIdFnGetLocalStorageFnSkSelectReuseportFnSkbAncestorCgroupIdFnSkLookupTcpFnSkLookupUdpFnSkReleaseFnMapPushElemFnMapPopElemFnMapPeekElemFnMsgPushDataFnMsgPopDataFnRcPointerRelFnSpinLockFnSpinUnlockFnSkFullsockFnTcpSockFnSkbEcnSetCeFnGetListenerSockFnSkcLookupTcpFnTcpCheckSyncookieFnSysctlGetNameFnSysctlGetCurrentValueFnSysctlGetNewValueFnSysctlSetNewValueFnStrtolFnStrtoulFnSkStorageGetFnSkStorageDeleteFnSendSignalFnTcpGenSyncookieFnSkbOutputFnProbeReadUserFnProbeReadKernelFnProbeReadUserStrFnProbeReadKernelStrFnTcpSendAckFnSendSignalThreadFnJiffies64FnReadBranchRecordsFnGetNsCurrentPidTgidFnXdpOutputFnGetNetnsCookieFnGetCurrentAncestorCgroupIdFnSkAssignFnKtimeGetBootNsFnSeqPrintfFnSeqWriteFnSkCgroupIdFnSkAncestorCgroupIdFnRingbufOutputFnRingbufReserveFnRingbufSubmitFnRingbufDiscardFnRingbufQueryFnCsumLevelFnSkcToTcp6SockFnSkcToTcpSockFnSkcToTcpTimewaitSockFnSkcToTcpRequestSockFnSkcToUdp6SockFnGetTaskStackFnLoadHdrOptFnStoreHdrOptFnReserveHdrOptFnInodeStorageGetFnInodeStorageDeleteFnDPathFnCopyFromUserFnSnprintfBtfFnSeqPrintfBtfFnSkbCgroupClassidFnRedirectNeighFnPerCpuPtrFnThisCpuPtrFnRedirectPeerFnTaskStorageGetFnTaskStorageDeleteFnGetCurrentTaskBtfFnBprmOptsSetFnKtimeGetCoarseNsFnImaInodeHashFnSockFromFileFnCheckMtuFnForEachMapElemFnSnprintfFnSysBpfFnBtfFindByNameKindFnSysClose"
var _BuiltinFunc_index = [...]uint16{0, 8, 23, 38, 53, 64, 76, 89, 104, 123, 138, 153, 168, 178, 193, 212, 230, 246, 264, 277, 289, 306, 323, 338, 348, 363, 380, 394, 406, 416, 433, 450, 466, 481, 497, 512, 528, 544, 568, 583, 596, 608, 624, 639, 654, 669, 683, 700, 714, 723, 735, 750, 763, 778, 793, 808, 828, 847, 859, 875, 894, 910, 925, 939, 952, 958, 973, 990, 1000, 1022, 1033, 1049, 1066, 1082, 1096, 1115, 1133, 1148, 1158, 1169, 1182, 1202, 1219, 1238, 1259, 1272, 1285, 1296, 1309, 1321, 1334, 1347, 1359, 1373, 1383, 1395, 1407, 1416, 1429, 1446, 1460, 1479, 1494, 1517, 1536, 1555, 1563, 1572, 1586, 1603, 1615, 1632, 1643, 1658, 1675, 1693, 1713, 1725, 1743, 1754, 1773, 1794, 1805, 1821, 1849, 1859, 1875, 1886, 1896, 1908, 1928, 1943, 1959, 1974, 1990, 2004, 2015, 2030, 2044, 2066, 2087, 2102, 2116, 2128, 2141, 2156, 2173, 2193, 2200, 2214, 2227, 2241, 2259, 2274, 2285, 2297, 2311, 2327, 2346, 2365, 2378, 2396, 2410, 2424}
var _BuiltinFunc_index = [...]uint16{0, 8, 23, 38, 53, 64, 76, 89, 104, 123, 138, 153, 168, 178, 193, 212, 230, 246, 264, 277, 289, 306, 323, 338, 348, 363, 380, 394, 406, 416, 433, 450, 466, 481, 497, 512, 528, 544, 568, 583, 596, 608, 624, 639, 654, 669, 683, 700, 714, 723, 735, 750, 763, 778, 793, 808, 828, 847, 859, 875, 894, 910, 925, 939, 952, 958, 973, 990, 1000, 1022, 1033, 1049, 1066, 1082, 1096, 1115, 1133, 1148, 1158, 1169, 1182, 1202, 1219, 1238, 1259, 1272, 1285, 1296, 1309, 1321, 1334, 1347, 1359, 1373, 1383, 1395, 1407, 1416, 1429, 1446, 1460, 1479, 1494, 1517, 1536, 1555, 1563, 1572, 1586, 1603, 1615, 1632, 1643, 1658, 1675, 1693, 1713, 1725, 1743, 1754, 1773, 1794, 1805, 1821, 1849, 1859, 1875, 1886, 1896, 1908, 1928, 1943, 1959, 1974, 1990, 2004, 2015, 2030, 2044, 2066, 2087, 2102, 2116, 2128, 2141, 2156, 2173, 2193, 2200, 2214, 2227, 2241, 2259, 2274, 2285, 2297, 2311, 2327, 2346, 2365, 2378, 2396, 2410, 2424, 2434, 2450, 2460, 2468, 2487, 2497}
func (i BuiltinFunc) String() string {
if i < 0 || i >= BuiltinFunc(len(_BuiltinFunc_index)-1) {

View File

@@ -181,6 +181,11 @@ func (ins *Instruction) IsFunctionCall() bool {
return ins.OpCode.JumpOp() == Call && ins.Src == PseudoCall
}
// IsBuiltinCall returns true if the instruction is a built-in call, i.e. BPF helper call.
func (ins *Instruction) IsBuiltinCall() bool {
return ins.OpCode.JumpOp() == Call && ins.Src == R0 && ins.Dst == R0
}
// IsConstantLoad returns true if the instruction loads a constant of the
// given size.
func (ins *Instruction) IsConstantLoad(size Size) bool {

View File

@@ -0,0 +1,65 @@
// Code generated by "stringer -type AttachType -trimprefix Attach"; DO NOT EDIT.
package ebpf
import "strconv"
func _() {
// An "invalid array index" compiler error signifies that the constant values have changed.
// Re-run the stringer command to generate them again.
var x [1]struct{}
_ = x[AttachNone-0]
_ = x[AttachCGroupInetIngress-0]
_ = x[AttachCGroupInetEgress-1]
_ = x[AttachCGroupInetSockCreate-2]
_ = x[AttachCGroupSockOps-3]
_ = x[AttachSkSKBStreamParser-4]
_ = x[AttachSkSKBStreamVerdict-5]
_ = x[AttachCGroupDevice-6]
_ = x[AttachSkMsgVerdict-7]
_ = x[AttachCGroupInet4Bind-8]
_ = x[AttachCGroupInet6Bind-9]
_ = x[AttachCGroupInet4Connect-10]
_ = x[AttachCGroupInet6Connect-11]
_ = x[AttachCGroupInet4PostBind-12]
_ = x[AttachCGroupInet6PostBind-13]
_ = x[AttachCGroupUDP4Sendmsg-14]
_ = x[AttachCGroupUDP6Sendmsg-15]
_ = x[AttachLircMode2-16]
_ = x[AttachFlowDissector-17]
_ = x[AttachCGroupSysctl-18]
_ = x[AttachCGroupUDP4Recvmsg-19]
_ = x[AttachCGroupUDP6Recvmsg-20]
_ = x[AttachCGroupGetsockopt-21]
_ = x[AttachCGroupSetsockopt-22]
_ = x[AttachTraceRawTp-23]
_ = x[AttachTraceFEntry-24]
_ = x[AttachTraceFExit-25]
_ = x[AttachModifyReturn-26]
_ = x[AttachLSMMac-27]
_ = x[AttachTraceIter-28]
_ = x[AttachCgroupInet4GetPeername-29]
_ = x[AttachCgroupInet6GetPeername-30]
_ = x[AttachCgroupInet4GetSockname-31]
_ = x[AttachCgroupInet6GetSockname-32]
_ = x[AttachXDPDevMap-33]
_ = x[AttachCgroupInetSockRelease-34]
_ = x[AttachXDPCPUMap-35]
_ = x[AttachSkLookup-36]
_ = x[AttachXDP-37]
_ = x[AttachSkSKBVerdict-38]
_ = x[AttachSkReuseportSelect-39]
_ = x[AttachSkReuseportSelectOrMigrate-40]
_ = x[AttachPerfEvent-41]
}
const _AttachType_name = "NoneCGroupInetEgressCGroupInetSockCreateCGroupSockOpsSkSKBStreamParserSkSKBStreamVerdictCGroupDeviceSkMsgVerdictCGroupInet4BindCGroupInet6BindCGroupInet4ConnectCGroupInet6ConnectCGroupInet4PostBindCGroupInet6PostBindCGroupUDP4SendmsgCGroupUDP6SendmsgLircMode2FlowDissectorCGroupSysctlCGroupUDP4RecvmsgCGroupUDP6RecvmsgCGroupGetsockoptCGroupSetsockoptTraceRawTpTraceFEntryTraceFExitModifyReturnLSMMacTraceIterCgroupInet4GetPeernameCgroupInet6GetPeernameCgroupInet4GetSocknameCgroupInet6GetSocknameXDPDevMapCgroupInetSockReleaseXDPCPUMapSkLookupXDPSkSKBVerdictSkReuseportSelectSkReuseportSelectOrMigratePerfEvent"
var _AttachType_index = [...]uint16{0, 4, 20, 40, 53, 70, 88, 100, 112, 127, 142, 160, 178, 197, 216, 233, 250, 259, 272, 284, 301, 318, 334, 350, 360, 371, 381, 393, 399, 408, 430, 452, 474, 496, 505, 526, 535, 543, 546, 558, 575, 601, 610}
func (i AttachType) String() string {
if i >= AttachType(len(_AttachType_index)-1) {
return "AttachType(" + strconv.FormatInt(int64(i), 10) + ")"
}
return _AttachType_name[_AttachType_index[i]:_AttachType_index[i+1]]
}

View File

@@ -1,6 +1,7 @@
package ebpf
import (
"encoding/binary"
"errors"
"fmt"
"io"
@@ -25,6 +26,10 @@ type CollectionOptions struct {
type CollectionSpec struct {
Maps map[string]*MapSpec
Programs map[string]*ProgramSpec
// ByteOrder specifies whether the ELF was compiled for
// big-endian or little-endian architectures.
ByteOrder binary.ByteOrder
}
// Copy returns a recursive copy of the spec.
@@ -34,8 +39,9 @@ func (cs *CollectionSpec) Copy() *CollectionSpec {
}
cpy := CollectionSpec{
Maps: make(map[string]*MapSpec, len(cs.Maps)),
Programs: make(map[string]*ProgramSpec, len(cs.Programs)),
Maps: make(map[string]*MapSpec, len(cs.Maps)),
Programs: make(map[string]*ProgramSpec, len(cs.Programs)),
ByteOrder: cs.ByteOrder,
}
for name, spec := range cs.Maps {
@@ -123,7 +129,7 @@ func (cs *CollectionSpec) RewriteConstants(consts map[string]interface{}) error
buf := make([]byte, len(value))
copy(buf, value)
err := patchValue(buf, btf.MapValue(rodata.BTF), consts)
err := patchValue(buf, rodata.BTF.Value, consts)
if err != nil {
return err
}
@@ -134,15 +140,15 @@ func (cs *CollectionSpec) RewriteConstants(consts map[string]interface{}) error
// Assign the contents of a CollectionSpec to a struct.
//
// This function is a short-cut to manually checking the presence
// of maps and programs in a collection spec. Consider using bpf2go if this
// sounds useful.
// This function is a shortcut to manually checking the presence
// of maps and programs in a CollectionSpec. Consider using bpf2go
// if this sounds useful.
//
// The argument to must be a pointer to a struct. A field of the
// 'to' must be a pointer to a struct. A field of the
// struct is updated with values from Programs or Maps if it
// has an `ebpf` tag and its type is *ProgramSpec or *MapSpec.
// The tag gives the name of the program or map as found in
// the CollectionSpec.
// The tag's value specifies the name of the program or map as
// found in the CollectionSpec.
//
// struct {
// Foo *ebpf.ProgramSpec `ebpf:"xdp_foo"`
@@ -150,42 +156,47 @@ func (cs *CollectionSpec) RewriteConstants(consts map[string]interface{}) error
// Ignored int
// }
//
// Returns an error if any of the fields can't be found, or
// if the same map or program is assigned multiple times.
// Returns an error if any of the eBPF objects can't be found, or
// if the same MapSpec or ProgramSpec is assigned multiple times.
func (cs *CollectionSpec) Assign(to interface{}) error {
valueOf := func(typ reflect.Type, name string) (reflect.Value, error) {
// Assign() only supports assigning ProgramSpecs and MapSpecs,
// so doesn't load any resources into the kernel.
getValue := func(typ reflect.Type, name string) (interface{}, error) {
switch typ {
case reflect.TypeOf((*ProgramSpec)(nil)):
p := cs.Programs[name]
if p == nil {
return reflect.Value{}, fmt.Errorf("missing program %q", name)
if p := cs.Programs[name]; p != nil {
return p, nil
}
return reflect.ValueOf(p), nil
return nil, fmt.Errorf("missing program %q", name)
case reflect.TypeOf((*MapSpec)(nil)):
m := cs.Maps[name]
if m == nil {
return reflect.Value{}, fmt.Errorf("missing map %q", name)
if m := cs.Maps[name]; m != nil {
return m, nil
}
return reflect.ValueOf(m), nil
return nil, fmt.Errorf("missing map %q", name)
default:
return reflect.Value{}, fmt.Errorf("unsupported type %s", typ)
return nil, fmt.Errorf("unsupported type %s", typ)
}
}
return assignValues(to, valueOf)
return assignValues(to, getValue)
}
// LoadAndAssign maps and programs into the kernel and assign them to a struct.
// LoadAndAssign loads Maps and Programs into the kernel and assigns them
// to a struct.
//
// This function is a short-cut to manually checking the presence
// of maps and programs in a collection spec. Consider using bpf2go if this
// sounds useful.
// This function is a shortcut to manually checking the presence
// of maps and programs in a CollectionSpec. Consider using bpf2go
// if this sounds useful.
//
// The argument to must be a pointer to a struct. A field of the
// struct is updated with values from Programs or Maps if it
// has an `ebpf` tag and its type is *Program or *Map.
// The tag gives the name of the program or map as found in
// the CollectionSpec.
// 'to' must be a pointer to a struct. A field of the struct is updated with
// a Program or Map if it has an `ebpf` tag and its type is *Program or *Map.
// The tag's value specifies the name of the program or map as found in the
// CollectionSpec. Before updating the struct, the requested objects and their
// dependent resources are loaded into the kernel and populated with values if
// specified.
//
// struct {
// Foo *ebpf.Program `ebpf:"xdp_foo"`
@@ -196,39 +207,53 @@ func (cs *CollectionSpec) Assign(to interface{}) error {
// opts may be nil.
//
// Returns an error if any of the fields can't be found, or
// if the same map or program is assigned multiple times.
// if the same Map or Program is assigned multiple times.
func (cs *CollectionSpec) LoadAndAssign(to interface{}, opts *CollectionOptions) error {
if opts == nil {
opts = &CollectionOptions{}
}
loader := newCollectionLoader(cs, opts)
defer loader.cleanup()
loadMap, loadProgram, done, cleanup := lazyLoadCollection(cs, opts)
defer cleanup()
valueOf := func(typ reflect.Type, name string) (reflect.Value, error) {
// Support assigning Programs and Maps, lazy-loading the required objects.
assignedMaps := make(map[string]bool)
getValue := func(typ reflect.Type, name string) (interface{}, error) {
switch typ {
case reflect.TypeOf((*Program)(nil)):
p, err := loadProgram(name)
if err != nil {
return reflect.Value{}, err
}
return reflect.ValueOf(p), nil
return loader.loadProgram(name)
case reflect.TypeOf((*Map)(nil)):
m, err := loadMap(name)
if err != nil {
return reflect.Value{}, err
}
return reflect.ValueOf(m), nil
assignedMaps[name] = true
return loader.loadMap(name)
default:
return reflect.Value{}, fmt.Errorf("unsupported type %s", typ)
return nil, fmt.Errorf("unsupported type %s", typ)
}
}
if err := assignValues(to, valueOf); err != nil {
// Load the Maps and Programs requested by the annotated struct.
if err := assignValues(to, getValue); err != nil {
return err
}
done()
// Populate the requested maps. Has a chance of lazy-loading other dependent maps.
if err := loader.populateMaps(); err != nil {
return err
}
// Evaluate the loader's objects after all (lazy)loading has taken place.
for n, m := range loader.maps {
switch m.typ {
case ProgramArray:
// Require all lazy-loaded ProgramArrays to be assigned to the given object.
// Without any references, they will be closed on the first GC and all tail
// calls into them will miss.
if !assignedMaps[n] {
return fmt.Errorf("ProgramArray %s must be assigned to prevent missed tail calls", n)
}
}
}
loader.finalize()
return nil
}
@@ -246,24 +271,32 @@ func NewCollection(spec *CollectionSpec) (*Collection, error) {
// NewCollectionWithOptions creates a Collection from a specification.
func NewCollectionWithOptions(spec *CollectionSpec, opts CollectionOptions) (*Collection, error) {
loadMap, loadProgram, done, cleanup := lazyLoadCollection(spec, &opts)
defer cleanup()
loader := newCollectionLoader(spec, &opts)
defer loader.cleanup()
// Create maps first, as their fds need to be linked into programs.
for mapName := range spec.Maps {
_, err := loadMap(mapName)
if err != nil {
if _, err := loader.loadMap(mapName); err != nil {
return nil, err
}
}
for progName := range spec.Programs {
_, err := loadProgram(progName)
if err != nil {
if _, err := loader.loadProgram(progName); err != nil {
return nil, err
}
}
maps, progs := done()
// Maps can contain Program and Map stubs, so populate them after
// all Maps and Programs have been successfully loaded.
if err := loader.populateMaps(); err != nil {
return nil, err
}
maps, progs := loader.maps, loader.programs
loader.finalize()
return &Collection{
progs,
maps,
@@ -314,113 +347,154 @@ func (hc handleCache) close() {
for _, handle := range hc.btfHandles {
handle.Close()
}
hc.btfHandles = nil
hc.btfSpecs = nil
}
func lazyLoadCollection(coll *CollectionSpec, opts *CollectionOptions) (
loadMap func(string) (*Map, error),
loadProgram func(string) (*Program, error),
done func() (map[string]*Map, map[string]*Program),
cleanup func(),
) {
var (
maps = make(map[string]*Map)
progs = make(map[string]*Program)
handles = newHandleCache()
skipMapsAndProgs = false
)
type collectionLoader struct {
coll *CollectionSpec
opts *CollectionOptions
maps map[string]*Map
programs map[string]*Program
handles *handleCache
}
cleanup = func() {
handles.close()
if skipMapsAndProgs {
return
}
for _, m := range maps {
m.Close()
}
for _, p := range progs {
p.Close()
}
func newCollectionLoader(coll *CollectionSpec, opts *CollectionOptions) *collectionLoader {
if opts == nil {
opts = &CollectionOptions{}
}
done = func() (map[string]*Map, map[string]*Program) {
skipMapsAndProgs = true
return maps, progs
return &collectionLoader{
coll,
opts,
make(map[string]*Map),
make(map[string]*Program),
newHandleCache(),
}
}
loadMap = func(mapName string) (*Map, error) {
if m := maps[mapName]; m != nil {
return m, nil
}
// finalize should be called when all the collectionLoader's resources
// have been successfully loaded into the kernel and populated with values.
func (cl *collectionLoader) finalize() {
cl.maps, cl.programs = nil, nil
}
mapSpec := coll.Maps[mapName]
if mapSpec == nil {
return nil, fmt.Errorf("missing map %s", mapName)
}
// cleanup cleans up all resources left over in the collectionLoader.
// Call finalize() when Map and Program creation/population is successful
// to prevent them from getting closed.
func (cl *collectionLoader) cleanup() {
cl.handles.close()
for _, m := range cl.maps {
m.Close()
}
for _, p := range cl.programs {
p.Close()
}
}
m, err := newMapWithOptions(mapSpec, opts.Maps, handles)
if err != nil {
return nil, fmt.Errorf("map %s: %w", mapName, err)
}
maps[mapName] = m
func (cl *collectionLoader) loadMap(mapName string) (*Map, error) {
if m := cl.maps[mapName]; m != nil {
return m, nil
}
loadProgram = func(progName string) (*Program, error) {
if prog := progs[progName]; prog != nil {
return prog, nil
mapSpec := cl.coll.Maps[mapName]
if mapSpec == nil {
return nil, fmt.Errorf("missing map %s", mapName)
}
m, err := newMapWithOptions(mapSpec, cl.opts.Maps, cl.handles)
if err != nil {
return nil, fmt.Errorf("map %s: %w", mapName, err)
}
cl.maps[mapName] = m
return m, nil
}
func (cl *collectionLoader) loadProgram(progName string) (*Program, error) {
if prog := cl.programs[progName]; prog != nil {
return prog, nil
}
progSpec := cl.coll.Programs[progName]
if progSpec == nil {
return nil, fmt.Errorf("unknown program %s", progName)
}
progSpec = progSpec.Copy()
// Rewrite any reference to a valid map.
for i := range progSpec.Instructions {
ins := &progSpec.Instructions[i]
if !ins.IsLoadFromMap() || ins.Reference == "" {
continue
}
progSpec := coll.Programs[progName]
if progSpec == nil {
return nil, fmt.Errorf("unknown program %s", progName)
if uint32(ins.Constant) != math.MaxUint32 {
// Don't overwrite maps already rewritten, users can
// rewrite programs in the spec themselves
continue
}
progSpec = progSpec.Copy()
// Rewrite any reference to a valid map.
for i := range progSpec.Instructions {
ins := &progSpec.Instructions[i]
if !ins.IsLoadFromMap() || ins.Reference == "" {
continue
}
if uint32(ins.Constant) != math.MaxUint32 {
// Don't overwrite maps already rewritten, users can
// rewrite programs in the spec themselves
continue
}
m, err := loadMap(ins.Reference)
if err != nil {
return nil, fmt.Errorf("program %s: %w", progName, err)
}
fd := m.FD()
if fd < 0 {
return nil, fmt.Errorf("map %s: %w", ins.Reference, internal.ErrClosedFd)
}
if err := ins.RewriteMapPtr(m.FD()); err != nil {
return nil, fmt.Errorf("progam %s: map %s: %w", progName, ins.Reference, err)
}
}
prog, err := newProgramWithOptions(progSpec, opts.Programs, handles)
m, err := cl.loadMap(ins.Reference)
if err != nil {
return nil, fmt.Errorf("program %s: %w", progName, err)
}
progs[progName] = prog
return prog, nil
fd := m.FD()
if fd < 0 {
return nil, fmt.Errorf("map %s: %w", ins.Reference, internal.ErrClosedFd)
}
if err := ins.RewriteMapPtr(m.FD()); err != nil {
return nil, fmt.Errorf("program %s: map %s: %w", progName, ins.Reference, err)
}
}
return
prog, err := newProgramWithOptions(progSpec, cl.opts.Programs, cl.handles)
if err != nil {
return nil, fmt.Errorf("program %s: %w", progName, err)
}
cl.programs[progName] = prog
return prog, nil
}
func (cl *collectionLoader) populateMaps() error {
for mapName, m := range cl.maps {
mapSpec, ok := cl.coll.Maps[mapName]
if !ok {
return fmt.Errorf("missing map spec %s", mapName)
}
mapSpec = mapSpec.Copy()
// Replace any object stubs with loaded objects.
for i, kv := range mapSpec.Contents {
switch v := kv.Value.(type) {
case programStub:
// loadProgram is idempotent and could return an existing Program.
prog, err := cl.loadProgram(string(v))
if err != nil {
return fmt.Errorf("loading program %s, for map %s: %w", v, mapName, err)
}
mapSpec.Contents[i] = MapKV{kv.Key, prog}
case mapStub:
// loadMap is idempotent and could return an existing Map.
innerMap, err := cl.loadMap(string(v))
if err != nil {
return fmt.Errorf("loading inner map %s, for map %s: %w", v, mapName, err)
}
mapSpec.Contents[i] = MapKV{kv.Key, innerMap}
}
}
// Populate and freeze the map if specified.
if err := m.finalize(mapSpec); err != nil {
return fmt.Errorf("populating map %s: %w", mapName, err)
}
}
return nil
}
// LoadCollection parses an object file and converts it to a collection.
@@ -466,108 +540,81 @@ func (coll *Collection) DetachProgram(name string) *Program {
return p
}
// Assign the contents of a collection to a struct.
//
// Deprecated: use CollectionSpec.Assign instead. It provides the same
// functionality but creates only the maps and programs requested.
func (coll *Collection) Assign(to interface{}) error {
assignedMaps := make(map[string]struct{})
assignedPrograms := make(map[string]struct{})
valueOf := func(typ reflect.Type, name string) (reflect.Value, error) {
switch typ {
case reflect.TypeOf((*Program)(nil)):
p := coll.Programs[name]
if p == nil {
return reflect.Value{}, fmt.Errorf("missing program %q", name)
}
assignedPrograms[name] = struct{}{}
return reflect.ValueOf(p), nil
case reflect.TypeOf((*Map)(nil)):
m := coll.Maps[name]
if m == nil {
return reflect.Value{}, fmt.Errorf("missing map %q", name)
}
assignedMaps[name] = struct{}{}
return reflect.ValueOf(m), nil
default:
return reflect.Value{}, fmt.Errorf("unsupported type %s", typ)
}
}
if err := assignValues(to, valueOf); err != nil {
return err
}
for name := range assignedPrograms {
coll.DetachProgram(name)
}
for name := range assignedMaps {
coll.DetachMap(name)
}
return nil
// structField represents a struct field containing the ebpf struct tag.
type structField struct {
reflect.StructField
value reflect.Value
}
func assignValues(to interface{}, valueOf func(reflect.Type, string) (reflect.Value, error)) error {
type structField struct {
reflect.StructField
value reflect.Value
// ebpfFields extracts field names tagged with 'ebpf' from a struct type.
// Keep track of visited types to avoid infinite recursion.
func ebpfFields(structVal reflect.Value, visited map[reflect.Type]bool) ([]structField, error) {
if visited == nil {
visited = make(map[reflect.Type]bool)
}
var (
fields []structField
visitedTypes = make(map[reflect.Type]bool)
flattenStruct func(reflect.Value) error
)
structType := structVal.Type()
if structType.Kind() != reflect.Struct {
return nil, fmt.Errorf("%s is not a struct", structType)
}
flattenStruct = func(structVal reflect.Value) error {
structType := structVal.Type()
if structType.Kind() != reflect.Struct {
return fmt.Errorf("%s is not a struct", structType)
if visited[structType] {
return nil, fmt.Errorf("recursion on type %s", structType)
}
fields := make([]structField, 0, structType.NumField())
for i := 0; i < structType.NumField(); i++ {
field := structField{structType.Field(i), structVal.Field(i)}
// If the field is tagged, gather it and move on.
name := field.Tag.Get("ebpf")
if name != "" {
fields = append(fields, field)
continue
}
if visitedTypes[structType] {
return fmt.Errorf("recursion on type %s", structType)
}
for i := 0; i < structType.NumField(); i++ {
field := structField{structType.Field(i), structVal.Field(i)}
name := field.Tag.Get("ebpf")
if name != "" {
fields = append(fields, field)
// If the field does not have an ebpf tag, but is a struct or a pointer
// to a struct, attempt to gather its fields as well.
var v reflect.Value
switch field.Type.Kind() {
case reflect.Ptr:
if field.Type.Elem().Kind() != reflect.Struct {
continue
}
var err error
switch field.Type.Kind() {
case reflect.Ptr:
if field.Type.Elem().Kind() != reflect.Struct {
continue
}
if field.value.IsNil() {
return fmt.Errorf("nil pointer to %s", structType)
}
err = flattenStruct(field.value.Elem())
case reflect.Struct:
err = flattenStruct(field.value)
default:
continue
if field.value.IsNil() {
return nil, fmt.Errorf("nil pointer to %s", structType)
}
if err != nil {
return fmt.Errorf("field %s: %w", field.Name, err)
}
// Obtain the destination type of the pointer.
v = field.value.Elem()
case reflect.Struct:
// Reference the value's type directly.
v = field.value
default:
continue
}
return nil
inner, err := ebpfFields(v, visited)
if err != nil {
return nil, fmt.Errorf("field %s: %w", field.Name, err)
}
fields = append(fields, inner...)
}
return fields, nil
}
// assignValues attempts to populate all fields of 'to' tagged with 'ebpf'.
//
// getValue is called for every tagged field of 'to' and must return the value
// to be assigned to the field with the given typ and name.
func assignValues(to interface{},
getValue func(typ reflect.Type, name string) (interface{}, error)) error {
toValue := reflect.ValueOf(to)
if toValue.Type().Kind() != reflect.Ptr {
return fmt.Errorf("%T is not a pointer to struct", to)
@@ -577,7 +624,8 @@ func assignValues(to interface{}, valueOf func(reflect.Type, string) (reflect.Va
return fmt.Errorf("nil pointer to %T", to)
}
if err := flattenStruct(toValue.Elem()); err != nil {
fields, err := ebpfFields(toValue.Elem(), nil)
if err != nil {
return err
}
@@ -587,19 +635,23 @@ func assignValues(to interface{}, valueOf func(reflect.Type, string) (reflect.Va
name string
}
assignedTo := make(map[elem]string)
assigned := make(map[elem]string)
for _, field := range fields {
name := field.Tag.Get("ebpf")
if strings.Contains(name, ",") {
// Get string value the field is tagged with.
tag := field.Tag.Get("ebpf")
if strings.Contains(tag, ",") {
return fmt.Errorf("field %s: ebpf tag contains a comma", field.Name)
}
e := elem{field.Type, name}
if assignedField := assignedTo[e]; assignedField != "" {
return fmt.Errorf("field %s: %q was already assigned to %s", field.Name, name, assignedField)
// Check if the eBPF object with the requested
// type and tag was already assigned elsewhere.
e := elem{field.Type, tag}
if af := assigned[e]; af != "" {
return fmt.Errorf("field %s: object %q was already assigned to %s", field.Name, tag, af)
}
value, err := valueOf(field.Type, name)
// Get the eBPF object referred to by the tag.
value, err := getValue(field.Type, tag)
if err != nil {
return fmt.Errorf("field %s: %w", field.Name, err)
}
@@ -607,9 +659,9 @@ func assignValues(to interface{}, valueOf func(reflect.Type, string) (reflect.Va
if !field.value.CanSet() {
return fmt.Errorf("field %s: can't set value", field.Name)
}
field.value.Set(reflect.ValueOf(value))
field.value.Set(value)
assignedTo[e] = field.Name
assigned[e] = field.Name
}
return nil

View File

@@ -19,7 +19,7 @@ import (
)
// elfCode is a convenience to reduce the amount of arguments that have to
// be passed around explicitly. You should treat it's contents as immutable.
// be passed around explicitly. You should treat its contents as immutable.
type elfCode struct {
*internal.SafeELFFile
sections map[elf.SectionIndex]*elfSection
@@ -188,7 +188,7 @@ func LoadCollectionSpecFromReader(rd io.ReaderAt) (*CollectionSpec, error) {
return nil, fmt.Errorf("load programs: %w", err)
}
return &CollectionSpec{maps, progs}, nil
return &CollectionSpec{maps, progs, ec.ByteOrder}, nil
}
func loadLicense(sec *elf.Section) (string, error) {
@@ -520,8 +520,12 @@ func (ec *elfCode) loadMaps(maps map[string]*MapSpec) error {
return fmt.Errorf("map %s: missing flags", mapName)
}
if _, err := io.Copy(internal.DiscardZeroes{}, lr); err != nil {
return fmt.Errorf("map %s: unknown and non-zero fields in definition", mapName)
extra, err := io.ReadAll(lr)
if err != nil {
return fmt.Errorf("map %s: reading map tail: %w", mapName, err)
}
if len(extra) > 0 {
spec.Extra = *bytes.NewReader(extra)
}
if err := spec.clampPerfEventArraySize(); err != nil {
@@ -535,6 +539,9 @@ func (ec *elfCode) loadMaps(maps map[string]*MapSpec) error {
return nil
}
// loadBTFMaps iterates over all ELF sections marked as BTF map sections
// (like .maps) and parses them into MapSpecs. Dump the .maps section and
// any relocations with `readelf -x .maps -r <elf_file>`.
func (ec *elfCode) loadBTFMaps(maps map[string]*MapSpec) error {
for _, sec := range ec.sections {
if sec.kind != btfMapSection {
@@ -545,33 +552,46 @@ func (ec *elfCode) loadBTFMaps(maps map[string]*MapSpec) error {
return fmt.Errorf("missing BTF")
}
_, err := io.Copy(internal.DiscardZeroes{}, bufio.NewReader(sec.Open()))
if err != nil {
return fmt.Errorf("section %v: initializing BTF map definitions: %w", sec.Name, internal.ErrNotSupported)
}
var ds btf.Datasec
// Each section must appear as a DataSec in the ELF's BTF blob.
var ds *btf.Datasec
if err := ec.btf.FindType(sec.Name, &ds); err != nil {
return fmt.Errorf("cannot find section '%s' in BTF: %w", sec.Name, err)
}
// Open a Reader to the ELF's raw section bytes so we can assert that all
// of them are zero on a per-map (per-Var) basis. For now, the section's
// sole purpose is to receive relocations, so all must be zero.
rs := sec.Open()
for _, vs := range ds.Vars {
// BPF maps are declared as and assigned to global variables,
// so iterate over each Var in the DataSec and validate their types.
v, ok := vs.Type.(*btf.Var)
if !ok {
return fmt.Errorf("section %v: unexpected type %s", sec.Name, vs.Type)
}
name := string(v.Name)
// The BTF metadata for each Var contains the full length of the map
// declaration, so read the corresponding amount of bytes from the ELF.
// This way, we can pinpoint which map declaration contains unexpected
// (and therefore unsupported) data.
_, err := io.Copy(internal.DiscardZeroes{}, io.LimitReader(rs, int64(vs.Size)))
if err != nil {
return fmt.Errorf("section %v: map %s: initializing BTF map definitions: %w", sec.Name, name, internal.ErrNotSupported)
}
if maps[name] != nil {
return fmt.Errorf("section %v: map %s already exists", sec.Name, name)
}
// Each Var representing a BTF map definition contains a Struct.
mapStruct, ok := v.Type.(*btf.Struct)
if !ok {
return fmt.Errorf("expected struct, got %s", v.Type)
}
mapSpec, err := mapSpecFromBTF(name, mapStruct, false, ec.btf)
mapSpec, err := mapSpecFromBTF(sec, &vs, mapStruct, ec.btf, name, false)
if err != nil {
return fmt.Errorf("map %v: %w", name, err)
}
@@ -582,32 +602,52 @@ func (ec *elfCode) loadBTFMaps(maps map[string]*MapSpec) error {
maps[name] = mapSpec
}
// Drain the ELF section reader to make sure all bytes are accounted for
// with BTF metadata.
i, err := io.Copy(io.Discard, rs)
if err != nil {
return fmt.Errorf("section %v: unexpected error reading remainder of ELF section: %w", sec.Name, err)
}
if i > 0 {
return fmt.Errorf("section %v: %d unexpected remaining bytes in ELF section, invalid BTF?", sec.Name, i)
}
}
return nil
}
// A programStub is a placeholder for a Program to be inserted at a certain map key.
// It needs to be resolved into a Program later on in the loader process.
type programStub string
// A mapStub is a placeholder for a Map to be inserted at a certain map key.
// It needs to be resolved into a Map later on in the loader process.
type mapStub string
// mapSpecFromBTF produces a MapSpec based on a btf.Struct def representing
// a BTF map definition. The name and spec arguments will be copied to the
// resulting MapSpec, and inner must be true on any resursive invocations.
func mapSpecFromBTF(name string, def *btf.Struct, inner bool, spec *btf.Spec) (*MapSpec, error) {
func mapSpecFromBTF(es *elfSection, vs *btf.VarSecinfo, def *btf.Struct, spec *btf.Spec, name string, inner bool) (*MapSpec, error) {
var (
key, value btf.Type
keySize, valueSize uint32
mapType, flags, maxEntries uint32
pinType PinType
innerMapSpec *MapSpec
err error
key, value btf.Type
keySize, valueSize uint32
mapType MapType
flags, maxEntries uint32
pinType PinType
innerMapSpec *MapSpec
contents []MapKV
err error
)
for i, member := range def.Members {
switch member.Name {
case "type":
mapType, err = uintFromBTF(member.Type)
mt, err := uintFromBTF(member.Type)
if err != nil {
return nil, fmt.Errorf("can't get type: %w", err)
}
mapType = MapType(mt)
case "map_flags":
flags, err = uintFromBTF(member.Type)
@@ -717,7 +757,7 @@ func mapSpecFromBTF(name string, def *btf.Struct, inner bool, spec *btf.Spec) (*
case *btf.Struct:
// The values member pointing to an array of structs means we're expecting
// a map-in-map declaration.
if MapType(mapType) != ArrayOfMaps && MapType(mapType) != HashOfMaps {
if mapType != ArrayOfMaps && mapType != HashOfMaps {
return nil, errors.New("outer map needs to be an array or a hash of maps")
}
if inner {
@@ -731,21 +771,38 @@ func mapSpecFromBTF(name string, def *btf.Struct, inner bool, spec *btf.Spec) (*
// on kernels 5.2 and up)
// Pass the BTF spec from the parent object, since both parent and
// child must be created from the same BTF blob (on kernels that support BTF).
innerMapSpec, err = mapSpecFromBTF(name+"_inner", t, true, spec)
innerMapSpec, err = mapSpecFromBTF(es, vs, t, spec, name+"_inner", true)
if err != nil {
return nil, fmt.Errorf("can't parse BTF map definition of inner map: %w", err)
}
case *btf.FuncProto:
// The values member contains an array of function pointers, meaning an
// autopopulated PROG_ARRAY.
if mapType != ProgramArray {
return nil, errors.New("map needs to be a program array")
}
default:
return nil, fmt.Errorf("unsupported value type %q in 'values' field", t)
}
contents, err = resolveBTFValuesContents(es, vs, member)
if err != nil {
return nil, fmt.Errorf("resolving values contents: %w", err)
}
default:
return nil, fmt.Errorf("unrecognized field %s in BTF map definition", member.Name)
}
}
bm := btf.NewMap(spec, key, value)
if key == nil {
key = &btf.Void{}
}
if value == nil {
value = &btf.Void{}
}
return &MapSpec{
Name: SanitizeName(name, -1),
@@ -754,9 +811,10 @@ func mapSpecFromBTF(name string, def *btf.Struct, inner bool, spec *btf.Spec) (*
ValueSize: valueSize,
MaxEntries: maxEntries,
Flags: flags,
BTF: &bm,
BTF: &btf.Map{Spec: spec, Key: key, Value: value},
Pinning: pinType,
InnerMap: innerMapSpec,
Contents: contents,
}, nil
}
@@ -793,6 +851,64 @@ func resolveBTFArrayMacro(typ btf.Type) (btf.Type, error) {
return ptr.Target, nil
}
// resolveBTFValuesContents resolves relocations into ELF sections belonging
// to btf.VarSecinfo's. This can be used on the 'values' member in BTF map
// definitions to extract static declarations of map contents.
func resolveBTFValuesContents(es *elfSection, vs *btf.VarSecinfo, member btf.Member) ([]MapKV, error) {
// The elements of a .values pointer array are not encoded in BTF.
// Instead, relocations are generated into each array index.
// However, it's possible to leave certain array indices empty, so all
// indices' offsets need to be checked for emitted relocations.
// The offset of the 'values' member within the _struct_ (in bits)
// is the starting point of the array. Convert to bytes. Add VarSecinfo
// offset to get the absolute position in the ELF blob.
start := (member.OffsetBits / 8) + vs.Offset
// 'values' is encoded in BTF as a zero (variable) length struct
// member, and its contents run until the end of the VarSecinfo.
// Add VarSecinfo offset to get the absolute position in the ELF blob.
end := vs.Size + vs.Offset
// The size of an address in this section. This determines the width of
// an index in the array.
align := uint32(es.SectionHeader.Addralign)
// Check if variable-length section is aligned.
if (end-start)%align != 0 {
return nil, errors.New("unaligned static values section")
}
elems := (end - start) / align
if elems == 0 {
return nil, nil
}
contents := make([]MapKV, 0, elems)
// k is the array index, off is its corresponding ELF section offset.
for k, off := uint32(0), start; k < elems; k, off = k+1, off+align {
r, ok := es.relocations[uint64(off)]
if !ok {
continue
}
// Relocation exists for the current offset in the ELF section.
// Emit a value stub based on the type of relocation to be replaced by
// a real fd later in the pipeline before populating the map.
// Map keys are encoded in MapKV entries, so empty array indices are
// skipped here.
switch t := elf.ST_TYPE(r.Info); t {
case elf.STT_FUNC:
contents = append(contents, MapKV{uint32(k), programStub(r.Name)})
case elf.STT_OBJECT:
contents = append(contents, MapKV{uint32(k), mapStub(r.Name)})
default:
return nil, fmt.Errorf("unknown relocation type %v", t)
}
}
return contents, nil
}
func (ec *elfCode) loadDataSections(maps map[string]*MapSpec) error {
for _, sec := range ec.sections {
if sec.kind != dataSection {
@@ -809,9 +925,9 @@ func (ec *elfCode) loadDataSections(maps map[string]*MapSpec) error {
return errors.New("data sections require BTF, make sure all consts are marked as static")
}
btfMap, err := ec.btf.Datasec(sec.Name)
if err != nil {
return err
var datasec *btf.Datasec
if err := ec.btf.FindType(sec.Name, &datasec); err != nil {
return fmt.Errorf("data section %s: can't get BTF: %w", sec.Name, err)
}
data, err := sec.Data()
@@ -830,7 +946,7 @@ func (ec *elfCode) loadDataSections(maps map[string]*MapSpec) error {
ValueSize: uint32(len(data)),
MaxEntries: 1,
Contents: []MapKV{{uint32(0), data}},
BTF: btfMap,
BTF: &btf.Map{Spec: ec.btf, Key: &btf.Void{}, Value: datasec},
}
switch sec.Name {
@@ -855,6 +971,8 @@ func getProgType(sectionName string) (ProgramType, AttachType, uint32, string) {
}{
// From https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/lib/bpf/libbpf.c
"socket": {SocketFilter, AttachNone, 0},
"sk_reuseport/migrate": {SkReuseport, AttachSkReuseportSelectOrMigrate, 0},
"sk_reuseport": {SkReuseport, AttachSkReuseportSelect, 0},
"seccomp": {SocketFilter, AttachNone, 0},
"kprobe/": {Kprobe, AttachNone, 0},
"uprobe/": {Kprobe, AttachNone, 0},
@@ -884,6 +1002,7 @@ func getProgType(sectionName string) (ProgramType, AttachType, uint32, string) {
"fmod_ret.s/": {Tracing, AttachModifyReturn, unix.BPF_F_SLEEPABLE},
"fexit.s/": {Tracing, AttachTraceFExit, unix.BPF_F_SLEEPABLE},
"sk_lookup/": {SkLookup, AttachSkLookup, 0},
"freplace/": {Extension, AttachNone, 0},
"lsm/": {LSM, AttachLSMMac, 0},
"lsm.s/": {LSM, AttachLSMMac, unix.BPF_F_SLEEPABLE},
@@ -907,6 +1026,11 @@ func getProgType(sectionName string) (ProgramType, AttachType, uint32, string) {
"cgroup/setsockopt": {CGroupSockopt, AttachCGroupSetsockopt, 0},
"classifier": {SchedCLS, AttachNone, 0},
"action": {SchedACT, AttachNone, 0},
"cgroup/getsockname4": {CGroupSockAddr, AttachCgroupInet4GetSockname, 0},
"cgroup/getsockname6": {CGroupSockAddr, AttachCgroupInet6GetSockname, 0},
"cgroup/getpeername4": {CGroupSockAddr, AttachCgroupInet4GetPeername, 0},
"cgroup/getpeername6": {CGroupSockAddr, AttachCgroupInet6GetPeername, 0},
}
for prefix, t := range types {

View File

@@ -1,3 +1,4 @@
//go:build gofuzz
// +build gofuzz
// Use with https://github.com/dvyukov/go-fuzz

View File

@@ -1,9 +1,9 @@
module github.com/cilium/ebpf
go 1.15
go 1.16
require (
github.com/frankban/quicktest v1.11.3
github.com/google/go-cmp v0.5.4
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c
golang.org/x/sys v0.0.0-20210906170528-6f6e22806c34
)

View File

@@ -7,7 +7,7 @@ github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfn
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c h1:VwygUrnw9jn88c4u8GD3rZQbqrP/tgas88tPUbBxQrk=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210906170528-6f6e22806c34 h1:GkvMjFtXUmahfDtashnc1mnrCtuBVcwse5QV2lUk/tI=
golang.org/x/sys v0.0.0-20210906170528-6f6e22806c34/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

View File

@@ -12,6 +12,7 @@ import (
"time"
"github.com/cilium/ebpf/internal"
"github.com/cilium/ebpf/internal/btf"
)
// MapInfo describes a map.
@@ -87,12 +88,16 @@ type ProgramInfo struct {
Tag string
// Name as supplied by user space at load time.
Name string
// BTF for the program.
btf btf.ID
// IDS map ids related to program.
ids []MapID
stats *programStats
}
func newProgramInfoFromFd(fd *internal.FD) (*ProgramInfo, error) {
info, err := bpfGetProgInfoByFD(fd)
info, err := bpfGetProgInfoByFD(fd, nil)
if errors.Is(err, syscall.EINVAL) {
return newProgramInfoFromProc(fd)
}
@@ -100,6 +105,15 @@ func newProgramInfoFromFd(fd *internal.FD) (*ProgramInfo, error) {
return nil, err
}
var mapIDs []MapID
if info.nr_map_ids > 0 {
mapIDs = make([]MapID, info.nr_map_ids)
info, err = bpfGetProgInfoByFD(fd, mapIDs)
if err != nil {
return nil, err
}
}
return &ProgramInfo{
Type: ProgramType(info.prog_type),
id: ProgramID(info.id),
@@ -107,6 +121,8 @@ func newProgramInfoFromFd(fd *internal.FD) (*ProgramInfo, error) {
Tag: hex.EncodeToString(info.tag[:]),
// name is available from 4.15.
Name: internal.CString(info.name[:]),
btf: btf.ID(info.btf_id),
ids: mapIDs,
stats: &programStats{
runtime: time.Duration(info.run_time_ns),
runCount: info.run_cnt,
@@ -142,6 +158,17 @@ func (pi *ProgramInfo) ID() (ProgramID, bool) {
return pi.id, pi.id > 0
}
// BTFID returns the BTF ID associated with the program.
//
// Available from 5.0.
//
// The bool return value indicates whether this optional field is available and
// populated. (The field may be available but not populated if the kernel
// supports the field but the program was loaded without BTF information.)
func (pi *ProgramInfo) BTFID() (btf.ID, bool) {
return pi.btf, pi.btf > 0
}
// RunCount returns the total number of times the program was called.
//
// Can return 0 if the collection of statistics is not enabled. See EnableStats().
@@ -164,6 +191,13 @@ func (pi *ProgramInfo) Runtime() (time.Duration, bool) {
return time.Duration(0), false
}
// MapIDs returns the maps related to the program.
//
// The bool return value indicates whether this optional field is available.
func (pi *ProgramInfo) MapIDs() ([]MapID, bool) {
return pi.ids, pi.ids != nil
}
func scanFdInfo(fd *internal.FD, fields map[string]interface{}) error {
raw, err := fd.Value()
if err != nil {

View File

@@ -0,0 +1,6 @@
package internal
// Align returns 'n' updated to 'alignment' boundary.
func Align(n, alignment int) int {
return (int(n) + alignment - 1) / alignment * alignment
}

View File

@@ -7,7 +7,6 @@ import (
"errors"
"fmt"
"io"
"io/ioutil"
"math"
"os"
"reflect"
@@ -27,12 +26,15 @@ var (
ErrNoExtendedInfo = errors.New("no extended info")
)
// ID represents the unique ID of a BTF object.
type ID uint32
// Spec represents decoded BTF.
type Spec struct {
rawTypes []rawType
strings stringTable
types []Type
namedTypes map[string][]namedType
namedTypes map[string][]NamedType
funcInfos map[string]extInfo
lineInfos map[string]extInfo
coreRelos map[string]coreRelos
@@ -61,15 +63,6 @@ func LoadSpecFromReader(rd io.ReaderAt) (*Spec, error) {
}
defer file.Close()
btfSection, btfExtSection, sectionSizes, err := findBtfSections(file)
if err != nil {
return nil, err
}
if btfSection == nil {
return nil, fmt.Errorf("btf: %w", ErrNotFound)
}
symbols, err := file.Symbols()
if err != nil {
return nil, fmt.Errorf("can't read symbols: %v", err)
@@ -87,10 +80,6 @@ func LoadSpecFromReader(rd io.ReaderAt) (*Spec, error) {
}
secName := file.Sections[symbol.Section].Name
if _, ok := sectionSizes[secName]; !ok {
continue
}
if symbol.Value > math.MaxUint32 {
return nil, fmt.Errorf("section %s: symbol %s: size exceeds maximum", secName, symbol.Name)
}
@@ -98,24 +87,10 @@ func LoadSpecFromReader(rd io.ReaderAt) (*Spec, error) {
variableOffsets[variable{secName, symbol.Name}] = uint32(symbol.Value)
}
spec, err := loadNakedSpec(btfSection.Open(), file.ByteOrder, sectionSizes, variableOffsets)
if err != nil {
return nil, err
}
if btfExtSection == nil {
return spec, nil
}
spec.funcInfos, spec.lineInfos, spec.coreRelos, err = parseExtInfos(btfExtSection.Open(), file.ByteOrder, spec.strings)
if err != nil {
return nil, fmt.Errorf("can't read ext info: %w", err)
}
return spec, nil
return loadSpecFromELF(file, variableOffsets)
}
func findBtfSections(file *internal.SafeELFFile) (*elf.Section, *elf.Section, map[string]uint32, error) {
func loadSpecFromELF(file *internal.SafeELFFile, variableOffsets map[variable]uint32) (*Spec, error) {
var (
btfSection *elf.Section
btfExtSection *elf.Section
@@ -134,33 +109,45 @@ func findBtfSections(file *internal.SafeELFFile) (*elf.Section, *elf.Section, ma
}
if sec.Size > math.MaxUint32 {
return nil, nil, nil, fmt.Errorf("section %s exceeds maximum size", sec.Name)
return nil, fmt.Errorf("section %s exceeds maximum size", sec.Name)
}
sectionSizes[sec.Name] = uint32(sec.Size)
}
}
return btfSection, btfExtSection, sectionSizes, nil
}
func loadSpecFromVmlinux(rd io.ReaderAt) (*Spec, error) {
file, err := internal.NewSafeELFFile(rd)
if btfSection == nil {
return nil, fmt.Errorf("btf: %w", ErrNotFound)
}
spec, err := loadRawSpec(btfSection.Open(), file.ByteOrder, sectionSizes, variableOffsets)
if err != nil {
return nil, err
}
defer file.Close()
btfSection, _, _, err := findBtfSections(file)
if btfExtSection == nil {
return spec, nil
}
spec.funcInfos, spec.lineInfos, spec.coreRelos, err = parseExtInfos(btfExtSection.Open(), file.ByteOrder, spec.strings)
if err != nil {
return nil, fmt.Errorf(".BTF ELF section: %s", err)
return nil, fmt.Errorf("can't read ext info: %w", err)
}
if btfSection == nil {
return nil, fmt.Errorf("unable to find .BTF ELF section")
}
return loadNakedSpec(btfSection.Open(), file.ByteOrder, nil, nil)
return spec, nil
}
func loadNakedSpec(btf io.ReadSeeker, bo binary.ByteOrder, sectionSizes map[string]uint32, variableOffsets map[variable]uint32) (*Spec, error) {
// LoadRawSpec reads a blob of BTF data that isn't wrapped in an ELF file.
//
// Prefer using LoadSpecFromReader, since this function only supports a subset
// of BTF.
func LoadRawSpec(btf io.Reader, bo binary.ByteOrder) (*Spec, error) {
// This will return an error if we encounter a Datasec, since we can't fix
// it up.
return loadRawSpec(btf, bo, nil, nil)
}
func loadRawSpec(btf io.Reader, bo binary.ByteOrder, sectionSizes map[string]uint32, variableOffsets map[variable]uint32) (*Spec, error) {
rawTypes, rawStrings, err := parseBTF(btf, bo)
if err != nil {
return nil, err
@@ -217,7 +204,7 @@ func loadKernelSpec() (*Spec, error) {
if err == nil {
defer fh.Close()
return loadNakedSpec(fh, internal.NativeEndian, nil, nil)
return LoadRawSpec(fh, internal.NativeEndian)
}
// use same list of locations as libbpf
@@ -241,14 +228,20 @@ func loadKernelSpec() (*Spec, error) {
}
defer fh.Close()
return loadSpecFromVmlinux(fh)
file, err := internal.NewSafeELFFile(fh)
if err != nil {
return nil, err
}
defer file.Close()
return loadSpecFromELF(file, nil)
}
return nil, fmt.Errorf("no BTF for kernel version %s: %w", release, internal.ErrNotSupported)
}
func parseBTF(btf io.ReadSeeker, bo binary.ByteOrder) ([]rawType, stringTable, error) {
rawBTF, err := ioutil.ReadAll(btf)
func parseBTF(btf io.Reader, bo binary.ByteOrder) ([]rawType, stringTable, error) {
rawBTF, err := io.ReadAll(btf)
if err != nil {
return nil, nil, fmt.Errorf("can't read BTF: %v", err)
}
@@ -357,6 +350,30 @@ func fixupDatasec(rawTypes []rawType, rawStrings stringTable, sectionSizes map[s
return nil
}
// Copy creates a copy of Spec.
func (s *Spec) Copy() *Spec {
types, _ := copyTypes(s.types, nil)
namedTypes := make(map[string][]NamedType)
for _, typ := range types {
if named, ok := typ.(NamedType); ok {
name := essentialName(named.TypeName())
namedTypes[name] = append(namedTypes[name], named)
}
}
// NB: Other parts of spec are not copied since they are immutable.
return &Spec{
s.rawTypes,
s.strings,
types,
namedTypes,
s.funcInfos,
s.lineInfos,
s.coreRelos,
s.byteOrder,
}
}
type marshalOpts struct {
ByteOrder binary.ByteOrder
StripFuncLinkage bool
@@ -447,36 +464,37 @@ func (s *Spec) Program(name string, length uint64) (*Program, error) {
return &Program{s, length, funcInfos, lineInfos, relos}, nil
}
// Datasec returns the BTF required to create maps which represent data sections.
func (s *Spec) Datasec(name string) (*Map, error) {
var datasec Datasec
if err := s.FindType(name, &datasec); err != nil {
return nil, fmt.Errorf("data section %s: can't get BTF: %w", name, err)
}
m := NewMap(s, &Void{}, &datasec)
return &m, nil
}
// FindType searches for a type with a specific name.
//
// hint determines the type of the returned Type.
// Called T a type that satisfies Type, typ must be a non-nil **T.
// On success, the address of the found type will be copied in typ.
//
// Returns an error wrapping ErrNotFound if no matching
// type exists in spec.
func (s *Spec) FindType(name string, typ Type) error {
var (
wanted = reflect.TypeOf(typ)
candidate Type
)
func (s *Spec) FindType(name string, typ interface{}) error {
typValue := reflect.ValueOf(typ)
if typValue.Kind() != reflect.Ptr {
return fmt.Errorf("%T is not a pointer", typ)
}
typPtr := typValue.Elem()
if !typPtr.CanSet() {
return fmt.Errorf("%T cannot be set", typ)
}
wanted := typPtr.Type()
if !wanted.AssignableTo(reflect.TypeOf((*Type)(nil)).Elem()) {
return fmt.Errorf("%T does not satisfy Type interface", typ)
}
var candidate Type
for _, typ := range s.namedTypes[essentialName(name)] {
if reflect.TypeOf(typ) != wanted {
continue
}
// Match against the full name, not just the essential one.
if typ.name() != name {
if typ.TypeName() != name {
continue
}
@@ -491,15 +509,15 @@ func (s *Spec) FindType(name string, typ Type) error {
return fmt.Errorf("type %s: %w", name, ErrNotFound)
}
cpy, _ := copyType(candidate, nil)
value := reflect.Indirect(reflect.ValueOf(cpy))
reflect.Indirect(reflect.ValueOf(typ)).Set(value)
typPtr.Set(reflect.ValueOf(candidate))
return nil
}
// Handle is a reference to BTF loaded into the kernel.
type Handle struct {
fd *internal.FD
spec *Spec
fd *internal.FD
}
// NewHandle loads BTF into the kernel.
@@ -541,7 +559,32 @@ func NewHandle(spec *Spec) (*Handle, error) {
return nil, internal.ErrorWithLog(err, logBuf, logErr)
}
return &Handle{fd}, nil
return &Handle{spec.Copy(), fd}, nil
}
// NewHandleFromID returns the BTF handle for a given id.
//
// Returns ErrNotExist, if there is no BTF with the given id.
//
// Requires CAP_SYS_ADMIN.
func NewHandleFromID(id ID) (*Handle, error) {
fd, err := internal.BPFObjGetFDByID(internal.BPF_BTF_GET_FD_BY_ID, uint32(id))
if err != nil {
return nil, fmt.Errorf("get BTF by id: %w", err)
}
info, err := newInfoFromFd(fd)
if err != nil {
_ = fd.Close()
return nil, fmt.Errorf("get BTF spec for handle: %w", err)
}
return &Handle{info.BTF, fd}, nil
}
// Spec returns the Spec that defined the BTF loaded into the kernel.
func (h *Handle) Spec() *Spec {
return h.spec
}
// Close destroys the handle.
@@ -563,43 +606,8 @@ func (h *Handle) FD() int {
// Map is the BTF for a map.
type Map struct {
spec *Spec
key, value Type
}
// NewMap returns a new Map containing the given values.
// The key and value arguments are initialized to Void if nil values are given.
func NewMap(spec *Spec, key Type, value Type) Map {
if key == nil {
key = &Void{}
}
if value == nil {
value = &Void{}
}
return Map{
spec: spec,
key: key,
value: value,
}
}
// MapSpec should be a method on Map, but is a free function
// to hide it from users of the ebpf package.
func MapSpec(m *Map) *Spec {
return m.spec
}
// MapKey should be a method on Map, but is a free function
// to hide it from users of the ebpf package.
func MapKey(m *Map) Type {
return m.key
}
// MapValue should be a method on Map, but is a free function
// to hide it from users of the ebpf package.
func MapValue(m *Map) Type {
return m.value
Spec *Spec
Key, Value Type
}
// Program is the BTF information for a stream of instructions.
@@ -610,68 +618,59 @@ type Program struct {
coreRelos coreRelos
}
// ProgramSpec returns the Spec needed for loading function and line infos into the kernel.
//
// This is a free function instead of a method to hide it from users
// of package ebpf.
func ProgramSpec(s *Program) *Spec {
return s.spec
// Spec returns the BTF spec of this program.
func (p *Program) Spec() *Spec {
return p.spec
}
// ProgramAppend the information from other to the Program.
//
// This is a free function instead of a method to hide it from users
// of package ebpf.
func ProgramAppend(s, other *Program) error {
funcInfos, err := s.funcInfos.append(other.funcInfos, s.length)
// Append the information from other to the Program.
func (p *Program) Append(other *Program) error {
if other.spec != p.spec {
return fmt.Errorf("can't append program with different BTF specs")
}
funcInfos, err := p.funcInfos.append(other.funcInfos, p.length)
if err != nil {
return fmt.Errorf("func infos: %w", err)
}
lineInfos, err := s.lineInfos.append(other.lineInfos, s.length)
lineInfos, err := p.lineInfos.append(other.lineInfos, p.length)
if err != nil {
return fmt.Errorf("line infos: %w", err)
}
s.funcInfos = funcInfos
s.lineInfos = lineInfos
s.coreRelos = s.coreRelos.append(other.coreRelos, s.length)
s.length += other.length
p.funcInfos = funcInfos
p.lineInfos = lineInfos
p.coreRelos = p.coreRelos.append(other.coreRelos, p.length)
p.length += other.length
return nil
}
// ProgramFuncInfos returns the binary form of BTF function infos.
//
// This is a free function instead of a method to hide it from users
// of package ebpf.
func ProgramFuncInfos(s *Program) (recordSize uint32, bytes []byte, err error) {
bytes, err = s.funcInfos.MarshalBinary()
// FuncInfos returns the binary form of BTF function infos.
func (p *Program) FuncInfos() (recordSize uint32, bytes []byte, err error) {
bytes, err = p.funcInfos.MarshalBinary()
if err != nil {
return 0, nil, err
return 0, nil, fmt.Errorf("func infos: %w", err)
}
return s.funcInfos.recordSize, bytes, nil
return p.funcInfos.recordSize, bytes, nil
}
// ProgramLineInfos returns the binary form of BTF line infos.
//
// This is a free function instead of a method to hide it from users
// of package ebpf.
func ProgramLineInfos(s *Program) (recordSize uint32, bytes []byte, err error) {
bytes, err = s.lineInfos.MarshalBinary()
// LineInfos returns the binary form of BTF line infos.
func (p *Program) LineInfos() (recordSize uint32, bytes []byte, err error) {
bytes, err = p.lineInfos.MarshalBinary()
if err != nil {
return 0, nil, err
return 0, nil, fmt.Errorf("line infos: %w", err)
}
return s.lineInfos.recordSize, bytes, nil
return p.lineInfos.recordSize, bytes, nil
}
// ProgramFixups returns the changes required to adjust the program to the target.
// Fixups returns the changes required to adjust the program to the target.
//
// This is a free function instead of a method to hide it from users
// of package ebpf.
func ProgramFixups(s *Program, target *Spec) (COREFixups, error) {
if len(s.coreRelos) == 0 {
// Passing a nil target will relocate against the running kernel.
func (p *Program) Fixups(target *Spec) (COREFixups, error) {
if len(p.coreRelos) == 0 {
return nil, nil
}
@@ -683,7 +682,7 @@ func ProgramFixups(s *Program, target *Spec) (COREFixups, error) {
}
}
return coreRelocate(s.spec, target, s.coreRelos)
return coreRelocate(p.spec, target, p.coreRelos)
}
type bpfLoadBTFAttr struct {

View File

@@ -31,6 +31,8 @@ const (
// Added ~5.1
kindVar
kindDatasec
// Added ~5.13
kindFloat
)
// FuncLinkage describes BTF function linkage metadata.
@@ -54,7 +56,7 @@ const (
const (
btfTypeKindShift = 24
btfTypeKindLen = 4
btfTypeKindLen = 5
btfTypeVlenShift = 0
btfTypeVlenMask = 16
btfTypeKindFlagShift = 31
@@ -67,8 +69,8 @@ type btfType struct {
/* "info" bits arrangement
* bits 0-15: vlen (e.g. # of struct's members), linkage
* bits 16-23: unused
* bits 24-27: kind (e.g. int, ptr, array...etc)
* bits 28-30: unused
* bits 24-28: kind (e.g. int, ptr, array...etc)
* bits 29-30: unused
* bit 31: kind_flag, currently used by
* struct, union and fwd
*/
@@ -117,6 +119,8 @@ func (k btfKind) String() string {
return "Variable"
case kindDatasec:
return "Section"
case kindFloat:
return "Float"
default:
return fmt.Sprintf("Unknown (%d)", k)
}
@@ -260,6 +264,7 @@ func readTypes(r io.Reader, bo binary.ByteOrder) ([]rawType, error) {
data = new(btfVariable)
case kindDatasec:
data = make([]btfVarSecinfo, header.Vlen())
case kindFloat:
default:
return nil, fmt.Errorf("type id %v: unknown kind: %v", id, header.Kind())
}

View File

@@ -234,13 +234,13 @@ func coreRelocate(local, target *Spec, relos coreRelos) (COREFixups, error) {
}
localType := local.types[id]
named, ok := localType.(namedType)
if !ok || named.name() == "" {
named, ok := localType.(NamedType)
if !ok || named.TypeName() == "" {
return nil, fmt.Errorf("relocate unnamed or anonymous type %s: %w", localType, ErrNotSupported)
}
relos := relosByID[id]
targets := target.namedTypes[named.essentialName()]
targets := target.namedTypes[essentialName(named.TypeName())]
fixups, err := coreCalculateFixups(localType, targets, relos)
if err != nil {
return nil, fmt.Errorf("relocate %s: %w", localType, err)
@@ -262,7 +262,7 @@ var errImpossibleRelocation = errors.New("impossible relocation")
//
// The best target is determined by scoring: the less poisoning we have to do
// the better the target is.
func coreCalculateFixups(local Type, targets []namedType, relos coreRelos) ([]COREFixup, error) {
func coreCalculateFixups(local Type, targets []NamedType, relos coreRelos) ([]COREFixup, error) {
localID := local.ID()
local, err := copyType(local, skipQualifierAndTypedef)
if err != nil {
@@ -467,8 +467,8 @@ func parseCoreAccessor(accessor string) (coreAccessor, error) {
return nil, fmt.Errorf("empty accessor")
}
var result coreAccessor
parts := strings.Split(accessor, ":")
result := make(coreAccessor, 0, len(parts))
for _, part := range parts {
// 31 bits to avoid overflowing int on 32 bit platforms.
index, err := strconv.ParseUint(part, 10, 31)
@@ -564,7 +564,7 @@ func coreFindField(local Type, localAcc coreAccessor, target Type) (_, _ coreFie
// This is an anonymous struct or union, ignore it.
local = localMember.Type
localOffset += localMember.Offset
localOffset += localMember.OffsetBits
localMaybeFlex = false
continue
}
@@ -585,10 +585,10 @@ func coreFindField(local Type, localAcc coreAccessor, target Type) (_, _ coreFie
local = localMember.Type
localMaybeFlex = acc == len(localMembers)-1
localOffset += localMember.Offset
localOffset += localMember.OffsetBits
target = targetMember.Type
targetMaybeFlex = last
targetOffset += targetMember.Offset
targetOffset += targetMember.OffsetBits
case *Array:
// For arrays, acc is the index in the target.
@@ -639,7 +639,7 @@ func coreFindField(local Type, localAcc coreAccessor, target Type) (_, _ coreFie
// coreFindMember finds a member in a composite type while handling anonymous
// structs and unions.
func coreFindMember(typ composite, name Name) (Member, bool, error) {
func coreFindMember(typ composite, name string) (Member, bool, error) {
if name == "" {
return Member{}, false, errors.New("can't search for anonymous member")
}
@@ -670,7 +670,7 @@ func coreFindMember(typ composite, name Name) (Member, bool, error) {
for j, member := range members {
if member.Name == name {
// NB: This is safe because member is a copy.
member.Offset += target.offset
member.OffsetBits += target.offset
return member, j == len(members)-1, nil
}
@@ -685,7 +685,7 @@ func coreFindMember(typ composite, name Name) (Member, bool, error) {
return Member{}, false, fmt.Errorf("anonymous non-composite type %T not allowed", member.Type)
}
targets = append(targets, offsetTarget{comp, target.offset + member.Offset})
targets = append(targets, offsetTarget{comp, target.offset + member.OffsetBits})
}
}
@@ -704,9 +704,9 @@ func coreFindEnumValue(local Type, localAcc coreAccessor, target Type) (localVal
return nil, nil, errImpossibleRelocation
}
localName := localValue.Name.essentialName()
localName := essentialName(localValue.Name)
for i, targetValue := range targetEnum.Values {
if targetValue.Name.essentialName() != localName {
if essentialName(targetValue.Name) != localName {
continue
}
@@ -813,6 +813,7 @@ func coreAreTypesCompatible(localType Type, targetType Type) error {
* least one of enums should be anonymous;
* - for ENUMs, check sizes, names are ignored;
* - for INT, size and signedness are ignored;
* - any two FLOATs are always compatible;
* - for ARRAY, dimensionality is ignored, element types are checked for
* compatibility recursively;
* [ NB: coreAreMembersCompatible doesn't recurse, this check is done
@@ -848,16 +849,16 @@ func coreAreMembersCompatible(localType Type, targetType Type) error {
}
switch lv := localType.(type) {
case *Array, *Pointer:
case *Array, *Pointer, *Float:
return nil
case *Enum:
tv := targetType.(*Enum)
return doNamesMatch(lv.name(), tv.name())
return doNamesMatch(lv.Name, tv.Name)
case *Fwd:
tv := targetType.(*Fwd)
return doNamesMatch(lv.name(), tv.name())
return doNamesMatch(lv.Name, tv.Name)
case *Int:
tv := targetType.(*Int)

View File

@@ -7,7 +7,6 @@ import (
"errors"
"fmt"
"io"
"io/ioutil"
"github.com/cilium/ebpf/asm"
"github.com/cilium/ebpf/internal"
@@ -64,7 +63,7 @@ func parseExtInfos(r io.ReadSeeker, bo binary.ByteOrder, strings stringTable) (f
// Of course, the .BTF.ext header has different semantics than the
// .BTF ext header. We need to ignore non-null values.
_, err = io.CopyN(ioutil.Discard, r, remainder)
_, err = io.CopyN(io.Discard, r, remainder)
if err != nil {
return nil, nil, nil, fmt.Errorf("header padding: %v", err)
}
@@ -114,11 +113,16 @@ type extInfoRecord struct {
}
type extInfo struct {
byteOrder binary.ByteOrder
recordSize uint32
records []extInfoRecord
}
func (ei extInfo) append(other extInfo, offset uint64) (extInfo, error) {
if other.byteOrder != ei.byteOrder {
return extInfo{}, fmt.Errorf("ext_info byte order mismatch, want %v (got %v)", ei.byteOrder, other.byteOrder)
}
if other.recordSize != ei.recordSize {
return extInfo{}, fmt.Errorf("ext_info record size mismatch, want %d (got %d)", ei.recordSize, other.recordSize)
}
@@ -131,10 +135,14 @@ func (ei extInfo) append(other extInfo, offset uint64) (extInfo, error) {
Opaque: info.Opaque,
})
}
return extInfo{ei.recordSize, records}, nil
return extInfo{ei.byteOrder, ei.recordSize, records}, nil
}
func (ei extInfo) MarshalBinary() ([]byte, error) {
if ei.byteOrder != internal.NativeEndian {
return nil, fmt.Errorf("%s is not the native byte order", ei.byteOrder)
}
if len(ei.records) == 0 {
return nil, nil
}
@@ -197,6 +205,7 @@ func parseExtInfo(r io.Reader, bo binary.ByteOrder, strings stringTable) (map[st
}
result[secName] = extInfo{
bo,
recordSize,
records,
}

View File

@@ -1,3 +1,4 @@
//go:build gofuzz
// +build gofuzz
// Use with https://github.com/dvyukov/go-fuzz

View File

@@ -0,0 +1,48 @@
package btf
import (
"bytes"
"github.com/cilium/ebpf/internal"
)
// info describes a BTF object.
type info struct {
BTF *Spec
ID ID
// Name is an identifying name for the BTF, currently only used by the
// kernel.
Name string
// KernelBTF is true if the BTf originated with the kernel and not
// userspace.
KernelBTF bool
}
func newInfoFromFd(fd *internal.FD) (*info, error) {
// We invoke the syscall once with a empty BTF and name buffers to get size
// information to allocate buffers. Then we invoke it a second time with
// buffers to receive the data.
bpfInfo, err := bpfGetBTFInfoByFD(fd, nil, nil)
if err != nil {
return nil, err
}
btfBuffer := make([]byte, bpfInfo.btfSize)
nameBuffer := make([]byte, bpfInfo.nameLen)
bpfInfo, err = bpfGetBTFInfoByFD(fd, btfBuffer, nameBuffer)
if err != nil {
return nil, err
}
spec, err := loadRawSpec(bytes.NewReader(btfBuffer), internal.NativeEndian, nil, nil)
if err != nil {
return nil, err
}
return &info{
BTF: spec,
ID: ID(bpfInfo.id),
Name: internal.CString(nameBuffer),
KernelBTF: bpfInfo.kernelBTF != 0,
}, nil
}

View File

@@ -5,13 +5,12 @@ import (
"errors"
"fmt"
"io"
"io/ioutil"
)
type stringTable []byte
func readStringTable(r io.Reader) (stringTable, error) {
contents, err := ioutil.ReadAll(r)
contents, err := io.ReadAll(r)
if err != nil {
return nil, fmt.Errorf("can't read string table: %v", err)
}
@@ -53,8 +52,3 @@ func (st stringTable) Lookup(offset uint32) (string, error) {
return string(str[:end]), nil
}
func (st stringTable) LookupName(offset uint32) (Name, error) {
str, err := st.Lookup(offset)
return Name(str), err
}

View File

@@ -0,0 +1,31 @@
package btf
import (
"fmt"
"unsafe"
"github.com/cilium/ebpf/internal"
)
type bpfBTFInfo struct {
btf internal.Pointer
btfSize uint32
id uint32
name internal.Pointer
nameLen uint32
kernelBTF uint32
}
func bpfGetBTFInfoByFD(fd *internal.FD, btf, name []byte) (*bpfBTFInfo, error) {
info := bpfBTFInfo{
btf: internal.NewSlicePointer(btf),
btfSize: uint32(len(btf)),
name: internal.NewSlicePointer(name),
nameLen: uint32(len(name)),
}
if err := internal.BPFObjGetInfoByFD(fd, unsafe.Pointer(&info), unsafe.Sizeof(info)); err != nil {
return nil, fmt.Errorf("can't get program info: %w", err)
}
return &info, nil
}

View File

@@ -30,27 +30,26 @@ type Type interface {
walk(*typeDeque)
}
// namedType is a type with a name.
//
// Most named types simply embed Name.
type namedType interface {
// NamedType is a type with a name.
type NamedType interface {
Type
name() string
essentialName() string
// Name of the type, empty for anonymous types.
TypeName() string
}
// Name identifies a type.
//
// Anonymous types have an empty name.
type Name string
func (n Name) name() string {
return string(n)
}
func (n Name) essentialName() string {
return essentialName(string(n))
}
var (
_ NamedType = (*Int)(nil)
_ NamedType = (*Struct)(nil)
_ NamedType = (*Union)(nil)
_ NamedType = (*Enum)(nil)
_ NamedType = (*Fwd)(nil)
_ NamedType = (*Func)(nil)
_ NamedType = (*Typedef)(nil)
_ NamedType = (*Var)(nil)
_ NamedType = (*Datasec)(nil)
_ NamedType = (*Float)(nil)
)
// Void is the unit type of BTF.
type Void struct{}
@@ -72,19 +71,17 @@ const (
// Int is an integer of a given length.
type Int struct {
TypeID
Name
Name string
// The size of the integer in bytes.
Size uint32
Encoding IntEncoding
// Offset is the starting bit offset. Currently always 0.
// OffsetBits is the starting bit offset. Currently always 0.
// See https://www.kernel.org/doc/html/latest/bpf/btf.html#btf-kind-int
Offset uint32
Bits byte
OffsetBits uint32
Bits byte
}
var _ namedType = (*Int)(nil)
func (i *Int) String() string {
var s strings.Builder
@@ -110,15 +107,16 @@ func (i *Int) String() string {
return s.String()
}
func (i *Int) size() uint32 { return i.Size }
func (i *Int) walk(*typeDeque) {}
func (i *Int) TypeName() string { return i.Name }
func (i *Int) size() uint32 { return i.Size }
func (i *Int) walk(*typeDeque) {}
func (i *Int) copy() Type {
cpy := *i
return &cpy
}
func (i *Int) isBitfield() bool {
return i.Offset > 0
return i.OffsetBits > 0
}
// Pointer is a pointer to another type.
@@ -158,7 +156,7 @@ func (arr *Array) copy() Type {
// Struct is a compound type of consecutive members.
type Struct struct {
TypeID
Name
Name string
// The size of the struct including padding, in bytes
Size uint32
Members []Member
@@ -168,6 +166,8 @@ func (s *Struct) String() string {
return fmt.Sprintf("struct#%d[%q]", s.TypeID, s.Name)
}
func (s *Struct) TypeName() string { return s.Name }
func (s *Struct) size() uint32 { return s.Size }
func (s *Struct) walk(tdq *typeDeque) {
@@ -189,7 +189,7 @@ func (s *Struct) members() []Member {
// Union is a compound type where members occupy the same memory.
type Union struct {
TypeID
Name
Name string
// The size of the union including padding, in bytes.
Size uint32
Members []Member
@@ -199,6 +199,8 @@ func (u *Union) String() string {
return fmt.Sprintf("union#%d[%q]", u.TypeID, u.Name)
}
func (u *Union) TypeName() string { return u.Name }
func (u *Union) size() uint32 { return u.Size }
func (u *Union) walk(tdq *typeDeque) {
@@ -236,17 +238,17 @@ var (
//
// It is not a valid Type.
type Member struct {
Name
Name string
Type Type
// Offset is the bit offset of this member
Offset uint32
// OffsetBits is the bit offset of this member.
OffsetBits uint32
BitfieldSize uint32
}
// Enum lists possible values.
type Enum struct {
TypeID
Name
Name string
Values []EnumValue
}
@@ -254,11 +256,13 @@ func (e *Enum) String() string {
return fmt.Sprintf("enum#%d[%q]", e.TypeID, e.Name)
}
func (e *Enum) TypeName() string { return e.Name }
// EnumValue is part of an Enum
//
// Is is not a valid Type
type EnumValue struct {
Name
Name string
Value int32
}
@@ -294,7 +298,7 @@ func (fk FwdKind) String() string {
// Fwd is a forward declaration of a Type.
type Fwd struct {
TypeID
Name
Name string
Kind FwdKind
}
@@ -302,6 +306,8 @@ func (f *Fwd) String() string {
return fmt.Sprintf("fwd#%d[%s %q]", f.TypeID, f.Kind, f.Name)
}
func (f *Fwd) TypeName() string { return f.Name }
func (f *Fwd) walk(*typeDeque) {}
func (f *Fwd) copy() Type {
cpy := *f
@@ -311,7 +317,7 @@ func (f *Fwd) copy() Type {
// Typedef is an alias of a Type.
type Typedef struct {
TypeID
Name
Name string
Type Type
}
@@ -319,6 +325,8 @@ func (td *Typedef) String() string {
return fmt.Sprintf("typedef#%d[%q #%d]", td.TypeID, td.Name, td.Type.ID())
}
func (td *Typedef) TypeName() string { return td.Name }
func (td *Typedef) walk(tdq *typeDeque) { tdq.push(&td.Type) }
func (td *Typedef) copy() Type {
cpy := *td
@@ -379,7 +387,7 @@ func (r *Restrict) copy() Type {
// Func is a function definition.
type Func struct {
TypeID
Name
Name string
Type Type
Linkage FuncLinkage
}
@@ -388,6 +396,8 @@ func (f *Func) String() string {
return fmt.Sprintf("func#%d[%s %q proto=#%d]", f.TypeID, f.Linkage, f.Name, f.Type.ID())
}
func (f *Func) TypeName() string { return f.Name }
func (f *Func) walk(tdq *typeDeque) { tdq.push(&f.Type) }
func (f *Func) copy() Type {
cpy := *f
@@ -426,14 +436,14 @@ func (fp *FuncProto) copy() Type {
}
type FuncParam struct {
Name
Name string
Type Type
}
// Var is a global variable.
type Var struct {
TypeID
Name
Name string
Type Type
Linkage VarLinkage
}
@@ -442,6 +452,8 @@ func (v *Var) String() string {
return fmt.Sprintf("var#%d[%s %q]", v.TypeID, v.Linkage, v.Name)
}
func (v *Var) TypeName() string { return v.Name }
func (v *Var) walk(tdq *typeDeque) { tdq.push(&v.Type) }
func (v *Var) copy() Type {
cpy := *v
@@ -451,7 +463,7 @@ func (v *Var) copy() Type {
// Datasec is a global program section containing data.
type Datasec struct {
TypeID
Name
Name string
Size uint32
Vars []VarSecinfo
}
@@ -460,6 +472,8 @@ func (ds *Datasec) String() string {
return fmt.Sprintf("section#%d[%q]", ds.TypeID, ds.Name)
}
func (ds *Datasec) TypeName() string { return ds.Name }
func (ds *Datasec) size() uint32 { return ds.Size }
func (ds *Datasec) walk(tdq *typeDeque) {
@@ -475,7 +489,7 @@ func (ds *Datasec) copy() Type {
return &cpy
}
// VarSecinfo describes variable in a Datasec
// VarSecinfo describes variable in a Datasec.
//
// It is not a valid Type.
type VarSecinfo struct {
@@ -484,6 +498,27 @@ type VarSecinfo struct {
Size uint32
}
// Float is a float of a given length.
type Float struct {
TypeID
Name string
// The size of the float in bytes.
Size uint32
}
func (f *Float) String() string {
return fmt.Sprintf("float%d#%d[%q]", f.Size*8, f.TypeID, f.Name)
}
func (f *Float) TypeName() string { return f.Name }
func (f *Float) size() uint32 { return f.Size }
func (f *Float) walk(*typeDeque) {}
func (f *Float) copy() Type {
cpy := *f
return &cpy
}
type sizer interface {
size() uint32
}
@@ -565,14 +600,36 @@ func Sizeof(typ Type) (int, error) {
//
// Returns any errors from transform verbatim.
func copyType(typ Type, transform func(Type) (Type, error)) (Type, error) {
var (
copies = make(map[Type]Type)
work typeDeque
)
copies := make(copier)
return typ, copies.copy(&typ, transform)
}
for t := &typ; t != nil; t = work.pop() {
// copy a slice of Types recursively.
//
// Types may form a cycle.
//
// Returns any errors from transform verbatim.
func copyTypes(types []Type, transform func(Type) (Type, error)) ([]Type, error) {
result := make([]Type, len(types))
copy(result, types)
copies := make(copier)
for i := range result {
if err := copies.copy(&result[i], transform); err != nil {
return nil, err
}
}
return result, nil
}
type copier map[Type]Type
func (c copier) copy(typ *Type, transform func(Type) (Type, error)) error {
var work typeDeque
for t := typ; t != nil; t = work.pop() {
// *t is the identity of the type.
if cpy := copies[*t]; cpy != nil {
if cpy := c[*t]; cpy != nil {
*t = cpy
continue
}
@@ -581,21 +638,21 @@ func copyType(typ Type, transform func(Type) (Type, error)) (Type, error) {
if transform != nil {
tf, err := transform(*t)
if err != nil {
return nil, fmt.Errorf("copy %s: %w", typ, err)
return fmt.Errorf("copy %s: %w", *t, err)
}
cpy = tf.copy()
} else {
cpy = (*t).copy()
}
copies[*t] = cpy
c[*t] = cpy
*t = cpy
// Mark any nested types for copying.
cpy.walk(&work)
}
return typ, nil
return nil
}
// typeDeque keeps track of pointers to types which still
@@ -606,6 +663,10 @@ type typeDeque struct {
mask uint64
}
func (dq *typeDeque) empty() bool {
return dq.read == dq.write
}
// push adds a type to the stack.
func (dq *typeDeque) push(t *Type) {
if dq.write-dq.read < uint64(len(dq.types)) {
@@ -632,7 +693,7 @@ func (dq *typeDeque) push(t *Type) {
// shift returns the first element or null.
func (dq *typeDeque) shift() *Type {
if dq.read == dq.write {
if dq.empty() {
return nil
}
@@ -645,7 +706,7 @@ func (dq *typeDeque) shift() *Type {
// pop returns the last element or null.
func (dq *typeDeque) pop() *Type {
if dq.read == dq.write {
if dq.empty() {
return nil
}
@@ -674,7 +735,7 @@ func (dq *typeDeque) all() []*Type {
// Returns a map of named types (so, where NameOff is non-zero) and a slice of types
// indexed by TypeID. Since BTF ignores compilation units, multiple types may share
// the same name. A Type may form a cyclic graph by pointing at itself.
func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type, namedTypes map[string][]namedType, err error) {
func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type, namedTypes map[string][]NamedType, err error) {
type fixupDef struct {
id TypeID
expectedKind btfKind
@@ -691,17 +752,17 @@ func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type,
// work, since otherwise append might re-allocate members.
members := make([]Member, 0, len(raw))
for i, btfMember := range raw {
name, err := rawStrings.LookupName(btfMember.NameOff)
name, err := rawStrings.Lookup(btfMember.NameOff)
if err != nil {
return nil, fmt.Errorf("can't get name for member %d: %w", i, err)
}
m := Member{
Name: name,
Offset: btfMember.Offset,
Name: name,
OffsetBits: btfMember.Offset,
}
if kindFlag {
m.BitfieldSize = btfMember.Offset >> 24
m.Offset &= 0xffffff
m.OffsetBits &= 0xffffff
}
members = append(members, m)
}
@@ -713,7 +774,7 @@ func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type,
types = make([]Type, 0, len(rawTypes))
types = append(types, (*Void)(nil))
namedTypes = make(map[string][]namedType)
namedTypes = make(map[string][]NamedType)
for i, raw := range rawTypes {
var (
@@ -723,7 +784,7 @@ func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type,
typ Type
)
name, err := rawStrings.LookupName(raw.NameOff)
name, err := rawStrings.Lookup(raw.NameOff)
if err != nil {
return nil, nil, fmt.Errorf("get name for type id %d: %w", id, err)
}
@@ -765,7 +826,7 @@ func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type,
rawvals := raw.data.([]btfEnum)
vals := make([]EnumValue, 0, len(rawvals))
for i, btfVal := range rawvals {
name, err := rawStrings.LookupName(btfVal.NameOff)
name, err := rawStrings.Lookup(btfVal.NameOff)
if err != nil {
return nil, nil, fmt.Errorf("get name for enum value %d: %s", i, err)
}
@@ -812,7 +873,7 @@ func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type,
rawparams := raw.data.([]btfParam)
params := make([]FuncParam, 0, len(rawparams))
for i, param := range rawparams {
name, err := rawStrings.LookupName(param.NameOff)
name, err := rawStrings.Lookup(param.NameOff)
if err != nil {
return nil, nil, fmt.Errorf("get name for func proto parameter %d: %s", i, err)
}
@@ -848,14 +909,17 @@ func inflateRawTypes(rawTypes []rawType, rawStrings stringTable) (types []Type,
}
typ = &Datasec{id, name, raw.SizeType, vars}
case kindFloat:
typ = &Float{id, name, raw.Size()}
default:
return nil, nil, fmt.Errorf("type id %d: unknown kind: %v", id, raw.Kind())
}
types = append(types, typ)
if named, ok := typ.(namedType); ok {
if name := essentialName(named.name()); name != "" {
if named, ok := typ.(NamedType); ok {
if name := essentialName(named.TypeName()); name != "" {
namedTypes[name] = append(namedTypes[name], named)
}
}

View File

@@ -2,7 +2,7 @@ package internal
import (
"fmt"
"io/ioutil"
"os"
"strings"
"sync"
)
@@ -24,7 +24,7 @@ func PossibleCPUs() (int, error) {
}
func parseCPUsFromFile(path string) (int, error) {
spec, err := ioutil.ReadFile(path)
spec, err := os.ReadFile(path)
if err != nil {
return 0, err
}

View File

@@ -1,3 +1,4 @@
//go:build armbe || mips || mips64p32
// +build armbe mips mips64p32
package internal

View File

@@ -1,3 +1,4 @@
//go:build 386 || amd64p32 || arm || mipsle || mips64p32le
// +build 386 amd64p32 arm mipsle mips64p32le
package internal

View File

@@ -1,5 +1,5 @@
// +build !386,!amd64p32,!arm,!mipsle,!mips64p32le
// +build !armbe,!mips,!mips64p32
//go:build !386 && !amd64p32 && !arm && !mipsle && !mips64p32le && !armbe && !mips && !mips64p32
// +build !386,!amd64p32,!arm,!mipsle,!mips64p32le,!armbe,!mips,!mips64p32
package internal

View File

@@ -1,6 +1,7 @@
package internal
import (
"errors"
"fmt"
"path/filepath"
"runtime"
@@ -68,6 +69,48 @@ func BPF(cmd BPFCmd, attr unsafe.Pointer, size uintptr) (uintptr, error) {
return r1, err
}
type BPFProgLoadAttr struct {
ProgType uint32
InsCount uint32
Instructions Pointer
License Pointer
LogLevel uint32
LogSize uint32
LogBuf Pointer
KernelVersion uint32 // since 4.1 2541517c32be
ProgFlags uint32 // since 4.11 e07b98d9bffe
ProgName BPFObjName // since 4.15 067cae47771c
ProgIfIndex uint32 // since 4.15 1f6f4cb7ba21
ExpectedAttachType uint32 // since 4.17 5e43f899b03a
ProgBTFFd uint32
FuncInfoRecSize uint32
FuncInfo Pointer
FuncInfoCnt uint32
LineInfoRecSize uint32
LineInfo Pointer
LineInfoCnt uint32
AttachBTFID uint32
AttachProgFd uint32
}
// BPFProgLoad wraps BPF_PROG_LOAD.
func BPFProgLoad(attr *BPFProgLoadAttr) (*FD, error) {
for {
fd, err := BPF(BPF_PROG_LOAD, unsafe.Pointer(attr), unsafe.Sizeof(*attr))
// As of ~4.20 the verifier can be interrupted by a signal,
// and returns EAGAIN in that case.
if errors.Is(err, unix.EAGAIN) {
continue
}
if err != nil {
return nil, err
}
return NewFD(uint32(fd)), nil
}
}
type BPFProgAttachAttr struct {
TargetFd uint32
AttachBpfFd uint32
@@ -180,6 +223,22 @@ func BPFObjGetInfoByFD(fd *FD, info unsafe.Pointer, size uintptr) error {
return nil
}
type bpfGetFDByIDAttr struct {
id uint32
next uint32
}
// BPFObjGetInfoByFD wraps BPF_*_GET_FD_BY_ID.
//
// Available from 4.13.
func BPFObjGetFDByID(cmd BPFCmd, id uint32) (*FD, error) {
attr := bpfGetFDByIDAttr{
id: id,
}
ptr, err := BPF(cmd, unsafe.Pointer(&attr), unsafe.Sizeof(attr))
return NewFD(uint32(ptr)), err
}
// BPFObjName is a null-terminated string made up of
// 'A-Za-z0-9_' characters.
type BPFObjName [unix.BPF_OBJ_NAME_LEN]byte

View File

@@ -1,3 +1,4 @@
//go:build linux
// +build linux
package unix
@@ -20,10 +21,11 @@ const (
EPERM = linux.EPERM
ESRCH = linux.ESRCH
ENODEV = linux.ENODEV
EBADF = linux.EBADF
E2BIG = linux.E2BIG
// ENOTSUPP is not the same as ENOTSUP or EOPNOTSUP
ENOTSUPP = syscall.Errno(0x20c)
EBADF = linux.EBADF
BPF_F_NO_PREALLOC = linux.BPF_F_NO_PREALLOC
BPF_F_NUMA_NODE = linux.BPF_F_NUMA_NODE
BPF_F_RDONLY = linux.BPF_F_RDONLY
@@ -35,6 +37,9 @@ const (
BPF_F_INNER_MAP = linux.BPF_F_INNER_MAP
BPF_OBJ_NAME_LEN = linux.BPF_OBJ_NAME_LEN
BPF_TAG_SIZE = linux.BPF_TAG_SIZE
BPF_RINGBUF_BUSY_BIT = linux.BPF_RINGBUF_BUSY_BIT
BPF_RINGBUF_DISCARD_BIT = linux.BPF_RINGBUF_DISCARD_BIT
BPF_RINGBUF_HDR_SZ = linux.BPF_RINGBUF_HDR_SZ
SYS_BPF = linux.SYS_BPF
F_DUPFD_CLOEXEC = linux.F_DUPFD_CLOEXEC
EPOLL_CTL_ADD = linux.EPOLL_CTL_ADD
@@ -69,11 +74,6 @@ type Statfs_t = linux.Statfs_t
// Rlimit is a wrapper
type Rlimit = linux.Rlimit
// Setrlimit is a wrapper
func Setrlimit(resource int, rlim *Rlimit) (err error) {
return linux.Setrlimit(resource, rlim)
}
// Syscall is a wrapper
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
return linux.Syscall(trap, a1, a2, a3)
@@ -202,3 +202,7 @@ func KernelRelease() (string, error) {
release := string(uname.Release[:end])
return release, nil
}
func Prlimit(pid, resource int, new, old *Rlimit) error {
return linux.Prlimit(pid, resource, new, old)
}

View File

@@ -1,3 +1,4 @@
//go:build !linux
// +build !linux
package unix
@@ -21,6 +22,7 @@ const (
ESRCH = syscall.ESRCH
ENODEV = syscall.ENODEV
EBADF = syscall.Errno(0)
E2BIG = syscall.Errno(0)
// ENOTSUPP is not the same as ENOTSUP or EOPNOTSUP
ENOTSUPP = syscall.Errno(0x20c)
@@ -35,6 +37,9 @@ const (
BPF_F_INNER_MAP = 0
BPF_OBJ_NAME_LEN = 0x10
BPF_TAG_SIZE = 0x8
BPF_RINGBUF_BUSY_BIT = 0
BPF_RINGBUF_DISCARD_BIT = 0
BPF_RINGBUF_HDR_SZ = 0
SYS_BPF = 321
F_DUPFD_CLOEXEC = 0x406
EPOLLIN = 0x1
@@ -86,11 +91,6 @@ type Rlimit struct {
Max uint64
}
// Setrlimit is a wrapper
func Setrlimit(resource int, rlim *Rlimit) (err error) {
return errNonLinux
}
// Syscall is a wrapper
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
return 0, 0, syscall.Errno(1)
@@ -261,3 +261,7 @@ func Renameat2(olddirfd int, oldpath string, newdirfd int, newpath string, flags
func KernelRelease() (string, error) {
return "", errNonLinux
}
func Prlimit(pid, resource int, new, old *Rlimit) error {
return errNonLinux
}

View File

@@ -2,7 +2,7 @@ package internal
import (
"fmt"
"io/ioutil"
"os"
"regexp"
"sync"
@@ -109,7 +109,7 @@ func detectKernelVersion() (Version, error) {
// Example format: Ubuntu 4.15.0-91.92-generic 4.15.18
// This method exists in the kernel itself, see d18acd15c
// ("perf tools: Fix kernel version error in ubuntu").
if pvs, err := ioutil.ReadFile("/proc/version_signature"); err == nil {
if pvs, err := os.ReadFile("/proc/version_signature"); err == nil {
// If /proc/version_signature exists, failing to parse it is an error.
// It only exists on Ubuntu, where the real patch level is not obtainable
// through any other method.

View File

@@ -0,0 +1,88 @@
package link
import (
"fmt"
"github.com/cilium/ebpf"
"github.com/cilium/ebpf/internal/btf"
)
type FreplaceLink struct {
RawLink
}
// AttachFreplace attaches the given eBPF program to the function it replaces.
//
// The program and name can either be provided at link time, or can be provided
// at program load time. If they were provided at load time, they should be nil
// and empty respectively here, as they will be ignored by the kernel.
// Examples:
//
// AttachFreplace(dispatcher, "function", replacement)
// AttachFreplace(nil, "", replacement)
func AttachFreplace(targetProg *ebpf.Program, name string, prog *ebpf.Program) (*FreplaceLink, error) {
if (name == "") != (targetProg == nil) {
return nil, fmt.Errorf("must provide both or neither of name and targetProg: %w", errInvalidInput)
}
if prog == nil {
return nil, fmt.Errorf("prog cannot be nil: %w", errInvalidInput)
}
if prog.Type() != ebpf.Extension {
return nil, fmt.Errorf("eBPF program type %s is not an Extension: %w", prog.Type(), errInvalidInput)
}
var (
target int
typeID btf.TypeID
)
if targetProg != nil {
info, err := targetProg.Info()
if err != nil {
return nil, err
}
btfID, ok := info.BTFID()
if !ok {
return nil, fmt.Errorf("could not get BTF ID for program %s: %w", info.Name, errInvalidInput)
}
btfHandle, err := btf.NewHandleFromID(btfID)
if err != nil {
return nil, err
}
defer btfHandle.Close()
var function *btf.Func
if err := btfHandle.Spec().FindType(name, &function); err != nil {
return nil, err
}
target = targetProg.FD()
typeID = function.ID()
}
link, err := AttachRawLink(RawLinkOptions{
Target: target,
Program: prog,
Attach: ebpf.AttachNone,
BTF: typeID,
})
if err != nil {
return nil, err
}
return &FreplaceLink{*link}, nil
}
// Update implements the Link interface.
func (f *FreplaceLink) Update(new *ebpf.Program) error {
return fmt.Errorf("freplace update: %w", ErrNotSupported)
}
// LoadPinnedFreplace loads a pinned iterator from a bpffs.
func LoadPinnedFreplace(fileName string, opts *ebpf.LoadPinOptions) (*FreplaceLink, error) {
link, err := LoadPinnedRawLink(fileName, TracingType, opts)
if err != nil {
return nil, err
}
return &FreplaceLink{*link}, err
}

View File

@@ -5,7 +5,6 @@ import (
"crypto/rand"
"errors"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"runtime"
@@ -72,10 +71,11 @@ func (pt probeType) RetprobeBit() (uint64, error) {
// given kernel symbol starts executing. See /proc/kallsyms for available
// symbols. For example, printk():
//
// Kprobe("printk", prog)
// kp, err := Kprobe("printk", prog)
//
// The resulting Link must be Closed during program shutdown to avoid leaking
// system resources.
// Losing the reference to the resulting Link (kp) will close the Kprobe
// and prevent further execution of prog. The Link must be Closed during
// program shutdown to avoid leaking system resources.
func Kprobe(symbol string, prog *ebpf.Program) (Link, error) {
k, err := kprobe(symbol, prog, false)
if err != nil {
@@ -95,10 +95,11 @@ func Kprobe(symbol string, prog *ebpf.Program) (Link, error) {
// before the given kernel symbol exits, with the function stack left intact.
// See /proc/kallsyms for available symbols. For example, printk():
//
// Kretprobe("printk", prog)
// kp, err := Kretprobe("printk", prog)
//
// The resulting Link must be Closed during program shutdown to avoid leaking
// system resources.
// Losing the reference to the resulting Link (kp) will close the Kretprobe
// and prevent further execution of prog. The Link must be Closed during
// program shutdown to avoid leaking system resources.
func Kretprobe(symbol string, prog *ebpf.Program) (Link, error) {
k, err := kprobe(symbol, prog, true)
if err != nil {
@@ -157,7 +158,7 @@ func kprobe(symbol string, prog *ebpf.Program, ret bool) (*perfEvent, error) {
// pmuKprobe opens a perf event based on the kprobe PMU.
// Returns os.ErrNotExist if the given symbol does not exist in the kernel.
func pmuKprobe(symbol string, ret bool) (*perfEvent, error) {
return pmuProbe(kprobeType, symbol, "", 0, ret)
return pmuProbe(kprobeType, symbol, "", 0, perfAllThreads, ret)
}
// pmuProbe opens a perf event based on a Performance Monitoring Unit.
@@ -167,7 +168,7 @@ func pmuKprobe(symbol string, ret bool) (*perfEvent, error) {
// 33ea4b24277b "perf/core: Implement the 'perf_uprobe' PMU"
//
// Returns ErrNotSupported if the kernel doesn't support perf_[k,u]probe PMU
func pmuProbe(typ probeType, symbol, path string, offset uint64, ret bool) (*perfEvent, error) {
func pmuProbe(typ probeType, symbol, path string, offset uint64, pid int, ret bool) (*perfEvent, error) {
// Getting the PMU type will fail if the kernel doesn't support
// the perf_[k,u]probe PMU.
et, err := getPMUEventType(typ)
@@ -191,7 +192,7 @@ func pmuProbe(typ probeType, symbol, path string, offset uint64, ret bool) (*per
switch typ {
case kprobeType:
// Create a pointer to a NUL-terminated string for the kernel.
sp, err := unsafeStringPtr(symbol)
sp, err = unsafeStringPtr(symbol)
if err != nil {
return nil, err
}
@@ -202,7 +203,7 @@ func pmuProbe(typ probeType, symbol, path string, offset uint64, ret bool) (*per
Config: config, // Retprobe flag
}
case uprobeType:
sp, err := unsafeStringPtr(path)
sp, err = unsafeStringPtr(path)
if err != nil {
return nil, err
}
@@ -220,7 +221,7 @@ func pmuProbe(typ probeType, symbol, path string, offset uint64, ret bool) (*per
}
}
fd, err := unix.PerfEventOpen(&attr, perfAllThreads, 0, -1, unix.PERF_FLAG_FD_CLOEXEC)
fd, err := unix.PerfEventOpen(&attr, pid, 0, -1, unix.PERF_FLAG_FD_CLOEXEC)
// Since commit 97c753e62e6c, ENOENT is correctly returned instead of EINVAL
// when trying to create a kretprobe for a missing symbol. Make sure ENOENT
@@ -228,6 +229,11 @@ func pmuProbe(typ probeType, symbol, path string, offset uint64, ret bool) (*per
if errors.Is(err, os.ErrNotExist) || errors.Is(err, unix.EINVAL) {
return nil, fmt.Errorf("symbol '%s' not found: %w", symbol, os.ErrNotExist)
}
// Since at least commit cb9a19fe4aa51, ENOTSUPP is returned
// when attempting to set a uprobe on a trap instruction.
if errors.Is(err, unix.ENOTSUPP) {
return nil, fmt.Errorf("failed setting uprobe on offset %#x (possible trap insn): %w", offset, err)
}
if err != nil {
return nil, fmt.Errorf("opening perf event: %w", err)
}
@@ -246,7 +252,7 @@ func pmuProbe(typ probeType, symbol, path string, offset uint64, ret bool) (*per
// tracefsKprobe creates a Kprobe tracefs entry.
func tracefsKprobe(symbol string, ret bool) (*perfEvent, error) {
return tracefsProbe(kprobeType, symbol, "", 0, ret)
return tracefsProbe(kprobeType, symbol, "", 0, perfAllThreads, ret)
}
// tracefsProbe creates a trace event by writing an entry to <tracefs>/[k,u]probe_events.
@@ -255,7 +261,7 @@ func tracefsKprobe(symbol string, ret bool) (*perfEvent, error) {
// Path and offset are only set in the case of uprobe(s) and are used to set
// the executable/library path on the filesystem and the offset where the probe is inserted.
// A perf event is then opened on the newly-created trace event and returned to the caller.
func tracefsProbe(typ probeType, symbol, path string, offset uint64, ret bool) (*perfEvent, error) {
func tracefsProbe(typ probeType, symbol, path string, offset uint64, pid int, ret bool) (*perfEvent, error) {
// Generate a random string for each trace event we attempt to create.
// This value is used as the 'group' token in tracefs to allow creating
// multiple kprobe trace events with the same name.
@@ -288,7 +294,7 @@ func tracefsProbe(typ probeType, symbol, path string, offset uint64, ret bool) (
}
// Kprobes are ephemeral tracepoints and share the same perf event type.
fd, err := openTracepointPerfEvent(tid)
fd, err := openTracepointPerfEvent(tid, pid)
if err != nil {
return nil, err
}
@@ -413,7 +419,7 @@ func probePrefix(ret bool) string {
func determineRetprobeBit(typ probeType) (uint64, error) {
p := filepath.Join("/sys/bus/event_source/devices/", typ.String(), "/format/retprobe")
data, err := ioutil.ReadFile(p)
data, err := os.ReadFile(p)
if err != nil {
return 0, err
}

View File

@@ -6,6 +6,7 @@ import (
"github.com/cilium/ebpf"
"github.com/cilium/ebpf/internal"
"github.com/cilium/ebpf/internal/btf"
)
var ErrNotSupported = internal.ErrNotSupported
@@ -29,8 +30,8 @@ type Link interface {
// Close frees resources.
//
// The link will be broken unless it has been pinned. A link
// may continue past the lifetime of the process if Close is
// The link will be broken unless it has been successfully pinned.
// A link may continue past the lifetime of the process if Close is
// not called.
Close() error
@@ -49,6 +50,8 @@ type RawLinkOptions struct {
Program *ebpf.Program
// Attach must match the attach type of Program.
Attach ebpf.AttachType
// BTF is the BTF of the attachment target.
BTF btf.TypeID
}
// RawLinkInfo contains metadata on a link.
@@ -83,9 +86,10 @@ func AttachRawLink(opts RawLinkOptions) (*RawLink, error) {
}
attr := bpfLinkCreateAttr{
targetFd: uint32(opts.Target),
progFd: uint32(progFd),
attachType: opts.Attach,
targetFd: uint32(opts.Target),
progFd: uint32(progFd),
attachType: opts.Attach,
targetBTFID: uint32(opts.BTF),
}
fd, err := bpfLinkCreate(&attr)
if err != nil {

View File

@@ -4,7 +4,6 @@ import (
"bytes"
"errors"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"regexp"
@@ -236,7 +235,7 @@ func getPMUEventType(typ probeType) (uint64, error) {
// openTracepointPerfEvent opens a tracepoint-type perf event. System-wide
// [k,u]probes created by writing to <tracefs>/[k,u]probe_events are tracepoints
// behind the scenes, and can be attached to using these perf events.
func openTracepointPerfEvent(tid uint64) (*internal.FD, error) {
func openTracepointPerfEvent(tid uint64, pid int) (*internal.FD, error) {
attr := unix.PerfEventAttr{
Type: unix.PERF_TYPE_TRACEPOINT,
Config: tid,
@@ -245,7 +244,7 @@ func openTracepointPerfEvent(tid uint64) (*internal.FD, error) {
Wakeup: 1,
}
fd, err := unix.PerfEventOpen(&attr, perfAllThreads, 0, -1, unix.PERF_FLAG_FD_CLOEXEC)
fd, err := unix.PerfEventOpen(&attr, pid, 0, -1, unix.PERF_FLAG_FD_CLOEXEC)
if err != nil {
return nil, fmt.Errorf("opening tracepoint perf event: %w", err)
}
@@ -263,7 +262,7 @@ func uint64FromFile(base string, path ...string) (uint64, error) {
return 0, fmt.Errorf("path '%s' attempts to escape base path '%s': %w", l, base, errInvalidInput)
}
data, err := ioutil.ReadFile(p)
data, err := os.ReadFile(p)
if err != nil {
return 0, fmt.Errorf("reading file %s: %w", p, err)
}

View File

@@ -88,10 +88,11 @@ var haveProgAttachReplace = internal.FeatureTest("BPF_PROG_ATTACH atomic replace
})
type bpfLinkCreateAttr struct {
progFd uint32
targetFd uint32
attachType ebpf.AttachType
flags uint32
progFd uint32
targetFd uint32
attachType ebpf.AttachType
flags uint32
targetBTFID uint32
}
func bpfLinkCreate(attr *bpfLinkCreateAttr) (*internal.FD, error) {

View File

@@ -11,7 +11,11 @@ import (
// tracepoints. The top-level directory is the group, the event's subdirectory
// is the name. Example:
//
// Tracepoint("syscalls", "sys_enter_fork", prog)
// tp, err := Tracepoint("syscalls", "sys_enter_fork", prog)
//
// Losing the reference to the resulting Link (tp) will close the Tracepoint
// and prevent further execution of prog. The Link must be Closed during
// program shutdown to avoid leaking system resources.
//
// Note that attaching eBPF programs to syscalls (sys_enter_*/sys_exit_*) is
// only possible as of kernel 4.14 (commit cf5f5ce).
@@ -34,7 +38,7 @@ func Tracepoint(group, name string, prog *ebpf.Program) (Link, error) {
return nil, err
}
fd, err := openTracepointPerfEvent(tid)
fd, err := openTracepointPerfEvent(tid, perfAllThreads)
if err != nil {
return nil, err
}

View File

@@ -25,14 +25,18 @@ var (
value uint64
err error
}{}
// ErrNoSymbol indicates that the given symbol was not found
// in the ELF symbols table.
ErrNoSymbol = errors.New("not found")
)
// Executable defines an executable program on the filesystem.
type Executable struct {
// Path of the executable on the filesystem.
path string
// Parsed ELF symbols and dynamic symbols.
symbols map[string]elf.Symbol
// Parsed ELF symbols and dynamic symbols offsets.
offsets map[string]uint64
}
// UprobeOptions defines additional parameters that will be used
@@ -41,6 +45,9 @@ type UprobeOptions struct {
// Symbol offset. Must be provided in case of external symbols (shared libs).
// If set, overrides the offset eventually parsed from the executable.
Offset uint64
// Only set the uprobe on the given process ID. Useful when tracing
// shared library calls or programs that have many running instances.
PID int
}
// To open a new Executable, use:
@@ -64,42 +71,84 @@ func OpenExecutable(path string) (*Executable, error) {
return nil, fmt.Errorf("parse ELF file: %w", err)
}
var ex = Executable{
path: path,
symbols: make(map[string]elf.Symbol),
}
if err := ex.addSymbols(se.Symbols); err != nil {
return nil, err
if se.Type != elf.ET_EXEC && se.Type != elf.ET_DYN {
// ELF is not an executable or a shared object.
return nil, errors.New("the given file is not an executable or a shared object")
}
if err := ex.addSymbols(se.DynamicSymbols); err != nil {
ex := Executable{
path: path,
offsets: make(map[string]uint64),
}
if err := ex.load(se); err != nil {
return nil, err
}
return &ex, nil
}
func (ex *Executable) addSymbols(f func() ([]elf.Symbol, error)) error {
// elf.Symbols and elf.DynamicSymbols return ErrNoSymbols if the section is not found.
syms, err := f()
func (ex *Executable) load(f *internal.SafeELFFile) error {
syms, err := f.Symbols()
if err != nil && !errors.Is(err, elf.ErrNoSymbols) {
return err
}
dynsyms, err := f.DynamicSymbols()
if err != nil && !errors.Is(err, elf.ErrNoSymbols) {
return err
}
syms = append(syms, dynsyms...)
for _, s := range syms {
if elf.ST_TYPE(s.Info) != elf.STT_FUNC {
// Symbol not associated with a function or other executable code.
continue
}
ex.symbols[s.Name] = s
off := s.Value
// Loop over ELF segments.
for _, prog := range f.Progs {
// Skip uninteresting segments.
if prog.Type != elf.PT_LOAD || (prog.Flags&elf.PF_X) == 0 {
continue
}
if prog.Vaddr <= s.Value && s.Value < (prog.Vaddr+prog.Memsz) {
// If the symbol value is contained in the segment, calculate
// the symbol offset.
//
// fn symbol offset = fn symbol VA - .text VA + .text offset
//
// stackoverflow.com/a/40249502
off = s.Value - prog.Vaddr + prog.Off
break
}
}
ex.offsets[s.Name] = off
}
return nil
}
func (ex *Executable) symbol(symbol string) (*elf.Symbol, error) {
if s, ok := ex.symbols[symbol]; ok {
return &s, nil
func (ex *Executable) offset(symbol string) (uint64, error) {
if off, ok := ex.offsets[symbol]; ok {
// Symbols with location 0 from section undef are shared library calls and
// are relocated before the binary is executed. Dynamic linking is not
// implemented by the library, so mark this as unsupported for now.
//
// Since only offset values are stored and not elf.Symbol, if the value is 0,
// assume it's an external symbol.
if off == 0 {
return 0, fmt.Errorf("cannot resolve %s library call '%s', "+
"consider providing the offset via options: %w", ex.path, symbol, ErrNotSupported)
}
return off, nil
}
return nil, fmt.Errorf("symbol %s not found", symbol)
return 0, fmt.Errorf("symbol %s: %w", symbol, ErrNoSymbol)
}
// Uprobe attaches the given eBPF program to a perf event that fires when the
@@ -112,11 +161,14 @@ func (ex *Executable) symbol(symbol string) (*elf.Symbol, error) {
// When using symbols which belongs to shared libraries,
// an offset must be provided via options:
//
// ex.Uprobe("main", prog, &UprobeOptions{Offset: 0x123})
// up, err := ex.Uprobe("main", prog, &UprobeOptions{Offset: 0x123})
//
// The resulting Link must be Closed during program shutdown to avoid leaking
// system resources. Functions provided by shared libraries can currently not
// be traced and will result in an ErrNotSupported.
// Losing the reference to the resulting Link (up) will close the Uprobe
// and prevent further execution of prog. The Link must be Closed during
// program shutdown to avoid leaking system resources.
//
// Functions provided by shared libraries can currently not be traced and
// will result in an ErrNotSupported.
func (ex *Executable) Uprobe(symbol string, prog *ebpf.Program, opts *UprobeOptions) (Link, error) {
u, err := ex.uprobe(symbol, prog, opts, false)
if err != nil {
@@ -141,11 +193,14 @@ func (ex *Executable) Uprobe(symbol string, prog *ebpf.Program, opts *UprobeOpti
// When using symbols which belongs to shared libraries,
// an offset must be provided via options:
//
// ex.Uretprobe("main", prog, &UprobeOptions{Offset: 0x123})
// up, err := ex.Uretprobe("main", prog, &UprobeOptions{Offset: 0x123})
//
// The resulting Link must be Closed during program shutdown to avoid leaking
// system resources. Functions provided by shared libraries can currently not
// be traced and will result in an ErrNotSupported.
// Losing the reference to the resulting Link (up) will close the Uprobe
// and prevent further execution of prog. The Link must be Closed during
// program shutdown to avoid leaking system resources.
//
// Functions provided by shared libraries can currently not be traced and
// will result in an ErrNotSupported.
func (ex *Executable) Uretprobe(symbol string, prog *ebpf.Program, opts *UprobeOptions) (Link, error) {
u, err := ex.uprobe(symbol, prog, opts, true)
if err != nil {
@@ -175,24 +230,20 @@ func (ex *Executable) uprobe(symbol string, prog *ebpf.Program, opts *UprobeOpti
if opts != nil && opts.Offset != 0 {
offset = opts.Offset
} else {
sym, err := ex.symbol(symbol)
off, err := ex.offset(symbol)
if err != nil {
return nil, fmt.Errorf("symbol '%s' not found: %w", symbol, err)
return nil, err
}
offset = off
}
// Symbols with location 0 from section undef are shared library calls and
// are relocated before the binary is executed. Dynamic linking is not
// implemented by the library, so mark this as unsupported for now.
if sym.Section == elf.SHN_UNDEF && sym.Value == 0 {
return nil, fmt.Errorf("cannot resolve %s library call '%s', "+
"consider providing the offset via options: %w", ex.path, symbol, ErrNotSupported)
}
offset = sym.Value
pid := perfAllThreads
if opts != nil && opts.PID != 0 {
pid = opts.PID
}
// Use uprobe PMU if the kernel has it available.
tp, err := pmuUprobe(symbol, ex.path, offset, ret)
tp, err := pmuUprobe(symbol, ex.path, offset, pid, ret)
if err == nil {
return tp, nil
}
@@ -201,7 +252,7 @@ func (ex *Executable) uprobe(symbol string, prog *ebpf.Program, opts *UprobeOpti
}
// Use tracefs if uprobe PMU is missing.
tp, err = tracefsUprobe(uprobeSanitizedSymbol(symbol), ex.path, offset, ret)
tp, err = tracefsUprobe(uprobeSanitizedSymbol(symbol), ex.path, offset, pid, ret)
if err != nil {
return nil, fmt.Errorf("creating trace event '%s:%s' in tracefs: %w", ex.path, symbol, err)
}
@@ -210,13 +261,13 @@ func (ex *Executable) uprobe(symbol string, prog *ebpf.Program, opts *UprobeOpti
}
// pmuUprobe opens a perf event based on the uprobe PMU.
func pmuUprobe(symbol, path string, offset uint64, ret bool) (*perfEvent, error) {
return pmuProbe(uprobeType, symbol, path, offset, ret)
func pmuUprobe(symbol, path string, offset uint64, pid int, ret bool) (*perfEvent, error) {
return pmuProbe(uprobeType, symbol, path, offset, pid, ret)
}
// tracefsUprobe creates a Uprobe tracefs entry.
func tracefsUprobe(symbol, path string, offset uint64, ret bool) (*perfEvent, error) {
return tracefsProbe(uprobeType, symbol, path, offset, ret)
func tracefsUprobe(symbol, path string, offset uint64, pid int, ret bool) (*perfEvent, error) {
return tracefsProbe(uprobeType, symbol, path, offset, pid, ret)
}
// uprobeSanitizedSymbol replaces every invalid characted for the tracefs api with an underscore.

View File

@@ -4,7 +4,6 @@ import (
"fmt"
"github.com/cilium/ebpf/asm"
"github.com/cilium/ebpf/internal/btf"
)
// link resolves bpf-to-bpf calls.
@@ -40,7 +39,7 @@ func link(prog *ProgramSpec, libs []*ProgramSpec) error {
pending = append(pending, lib.Instructions)
if prog.BTF != nil && lib.BTF != nil {
if err := btf.ProgramAppend(prog.BTF, lib.BTF); err != nil {
if err := prog.BTF.Append(lib.BTF); err != nil {
return fmt.Errorf("linking BTF of %s: %w", lib.Name, err)
}
}
@@ -136,5 +135,25 @@ func fixupJumpsAndCalls(insns asm.Instructions) error {
}
}
// fixupBPFCalls replaces bpf_probe_read_{kernel,user}[_str] with bpf_probe_read[_str] on older kernels
// https://github.com/libbpf/libbpf/blob/master/src/libbpf.c#L6009
iter = insns.Iterate()
for iter.Next() {
ins := iter.Ins
if !ins.IsBuiltinCall() {
continue
}
switch asm.BuiltinFunc(ins.Constant) {
case asm.FnProbeReadKernel, asm.FnProbeReadUser:
if err := haveProbeReadKernel(); err != nil {
ins.Constant = int64(asm.FnProbeRead)
}
case asm.FnProbeReadKernelStr, asm.FnProbeReadUserStr:
if err := haveProbeReadKernel(); err != nil {
ins.Constant = int64(asm.FnProbeReadStr)
}
}
}
return nil
}

View File

@@ -1,6 +1,7 @@
package ebpf
import (
"bytes"
"errors"
"fmt"
"io"
@@ -65,6 +66,11 @@ type MapSpec struct {
// InnerMap is used as a template for ArrayOfMaps and HashOfMaps
InnerMap *MapSpec
// Extra trailing bytes found in the ELF map definition when using structs
// larger than libbpf's bpf_map_def. Must be empty before instantiating
// the MapSpec into a Map.
Extra bytes.Reader
// The BTF associated with this map.
BTF *btf.Map
}
@@ -82,9 +88,12 @@ func (ms *MapSpec) Copy() *MapSpec {
}
cpy := *ms
cpy.Contents = make([]MapKV, len(ms.Contents))
copy(cpy.Contents, ms.Contents)
cpy.InnerMap = ms.InnerMap.Copy()
return &cpy
}
@@ -188,14 +197,24 @@ func NewMap(spec *MapSpec) (*Map, error) {
//
// The caller is responsible for ensuring the process' rlimit is set
// sufficiently high for locking memory during map creation. This can be done
// by calling unix.Setrlimit with unix.RLIMIT_MEMLOCK prior to calling NewMapWithOptions.
// by calling rlimit.RemoveMemlock() prior to calling NewMapWithOptions.
//
// May return an error wrapping ErrMapIncompatible.
func NewMapWithOptions(spec *MapSpec, opts MapOptions) (*Map, error) {
handles := newHandleCache()
defer handles.close()
return newMapWithOptions(spec, opts, handles)
m, err := newMapWithOptions(spec, opts, handles)
if err != nil {
return nil, fmt.Errorf("creating map: %w", err)
}
err = m.finalize(spec)
if err != nil {
return nil, fmt.Errorf("populating map: %w", err)
}
return m, nil
}
func newMapWithOptions(spec *MapSpec, opts MapOptions, handles *handleCache) (_ *Map, err error) {
@@ -207,8 +226,12 @@ func newMapWithOptions(spec *MapSpec, opts MapOptions, handles *handleCache) (_
switch spec.Pinning {
case PinByName:
if spec.Name == "" || opts.PinPath == "" {
return nil, fmt.Errorf("pin by name: missing Name or PinPath")
if spec.Name == "" {
return nil, fmt.Errorf("pin by name: missing Name")
}
if opts.PinPath == "" {
return nil, fmt.Errorf("pin by name: missing MapOptions.PinPath")
}
path := filepath.Join(opts.PinPath, spec.Name)
@@ -244,16 +267,19 @@ func newMapWithOptions(spec *MapSpec, opts MapOptions, handles *handleCache) (_
return nil, errors.New("inner maps cannot be pinned")
}
template, err := createMap(spec.InnerMap, nil, opts, handles)
template, err := spec.InnerMap.createMap(nil, opts, handles)
if err != nil {
return nil, err
return nil, fmt.Errorf("inner map: %w", err)
}
defer template.Close()
// Intentionally skip populating and freezing (finalizing)
// the inner map template since it will be removed shortly.
innerFd = template.fd
}
m, err := createMap(spec, innerFd, opts, handles)
m, err := spec.createMap(innerFd, opts, handles)
if err != nil {
return nil, err
}
@@ -269,7 +295,9 @@ func newMapWithOptions(spec *MapSpec, opts MapOptions, handles *handleCache) (_
return m, nil
}
func createMap(spec *MapSpec, inner *internal.FD, opts MapOptions, handles *handleCache) (_ *Map, err error) {
// createMap validates the spec's properties and creates the map in the kernel
// using the given opts. It does not populate or freeze the map.
func (spec *MapSpec) createMap(inner *internal.FD, opts MapOptions, handles *handleCache) (_ *Map, err error) {
closeOnError := func(closer io.Closer) {
if err != nil {
closer.Close()
@@ -278,10 +306,16 @@ func createMap(spec *MapSpec, inner *internal.FD, opts MapOptions, handles *hand
spec = spec.Copy()
// Kernels 4.13 through 5.4 used a struct bpf_map_def that contained
// additional 'inner_map_idx' and later 'numa_node' fields.
// In order to support loading these definitions, tolerate the presence of
// extra bytes, but require them to be zeroes.
if _, err := io.Copy(internal.DiscardZeroes{}, &spec.Extra); err != nil {
return nil, errors.New("extra contains unhandled non-zero bytes, drain before creating map")
}
switch spec.Type {
case ArrayOfMaps:
fallthrough
case HashOfMaps:
case ArrayOfMaps, HashOfMaps:
if err := haveNestedMaps(); err != nil {
return nil, err
}
@@ -350,7 +384,7 @@ func createMap(spec *MapSpec, inner *internal.FD, opts MapOptions, handles *hand
var btfDisabled bool
if spec.BTF != nil {
handle, err := handles.btfHandle(btf.MapSpec(spec.BTF))
handle, err := handles.btfHandle(spec.BTF.Spec)
btfDisabled = errors.Is(err, btf.ErrNotSupported)
if err != nil && !btfDisabled {
return nil, fmt.Errorf("load BTF: %w", err)
@@ -358,15 +392,15 @@ func createMap(spec *MapSpec, inner *internal.FD, opts MapOptions, handles *hand
if handle != nil {
attr.BTFFd = uint32(handle.FD())
attr.BTFKeyTypeID = uint32(btf.MapKey(spec.BTF).ID())
attr.BTFValueTypeID = uint32(btf.MapValue(spec.BTF).ID())
attr.BTFKeyTypeID = uint32(spec.BTF.Key.ID())
attr.BTFValueTypeID = uint32(spec.BTF.Value.ID())
}
}
fd, err := internal.BPFMapCreate(&attr)
if err != nil {
if errors.Is(err, unix.EPERM) {
return nil, fmt.Errorf("map create: RLIMIT_MEMLOCK may be too low: %w", err)
return nil, fmt.Errorf("map create: %w (MEMLOCK bay be too low, consider rlimit.RemoveMemlock)", err)
}
if btfDisabled {
return nil, fmt.Errorf("map create without BTF: %w", err)
@@ -380,19 +414,11 @@ func createMap(spec *MapSpec, inner *internal.FD, opts MapOptions, handles *hand
return nil, fmt.Errorf("map create: %w", err)
}
if err := m.populate(spec.Contents); err != nil {
return nil, fmt.Errorf("map create: can't set initial contents: %w", err)
}
if spec.Freeze {
if err := m.Freeze(); err != nil {
return nil, fmt.Errorf("can't freeze map: %w", err)
}
}
return m, nil
}
// newMap allocates and returns a new Map structure.
// Sets the fullValueSize on per-CPU maps.
func newMap(fd *internal.FD, name string, typ MapType, keySize, valueSize, maxEntries, flags uint32) (*Map, error) {
m := &Map{
name,
@@ -415,7 +441,7 @@ func newMap(fd *internal.FD, name string, typ MapType, keySize, valueSize, maxEn
return nil, err
}
m.fullValueSize = align(int(valueSize), 8) * possibleCPUs
m.fullValueSize = internal.Align(int(valueSize), 8) * possibleCPUs
return m, nil
}
@@ -892,12 +918,21 @@ func (m *Map) Freeze() error {
return nil
}
func (m *Map) populate(contents []MapKV) error {
for _, kv := range contents {
// finalize populates the Map according to the Contents specified
// in spec and freezes the Map if requested by spec.
func (m *Map) finalize(spec *MapSpec) error {
for _, kv := range spec.Contents {
if err := m.Put(kv.Key, kv.Value); err != nil {
return fmt.Errorf("key %v: %w", kv.Key, err)
return fmt.Errorf("putting value: key %v: %w", kv.Key, err)
}
}
if spec.Freeze {
if err := m.Freeze(); err != nil {
return fmt.Errorf("freezing map: %w", err)
}
}
return nil
}
@@ -1212,7 +1247,7 @@ func MapGetNextID(startID MapID) (MapID, error) {
//
// Returns ErrNotExist, if there is no eBPF map with the given id.
func NewMapFromID(id MapID) (*Map, error) {
fd, err := bpfObjGetFDByID(internal.BPF_MAP_GET_FD_BY_ID, uint32(id))
fd, err := internal.BPFObjGetFDByID(internal.BPF_MAP_GET_FD_BY_ID, uint32(id))
if err != nil {
return nil, err
}

View File

@@ -8,6 +8,7 @@ import (
"fmt"
"reflect"
"runtime"
"sync"
"unsafe"
"github.com/cilium/ebpf/internal"
@@ -39,6 +40,10 @@ func marshalPtr(data interface{}, length int) (internal.Pointer, error) {
// Returns an error if the given value isn't representable in exactly
// length bytes.
func marshalBytes(data interface{}, length int) (buf []byte, err error) {
if data == nil {
return nil, errors.New("can't marshal a nil value")
}
switch value := data.(type) {
case encoding.BinaryMarshaler:
buf, err = value.MarshalBinary()
@@ -77,22 +82,30 @@ func makeBuffer(dst interface{}, length int) (internal.Pointer, []byte) {
return internal.NewSlicePointer(buf), buf
}
var bytesReaderPool = sync.Pool{
New: func() interface{} {
return new(bytes.Reader)
},
}
// unmarshalBytes converts a byte buffer into an arbitrary value.
//
// Prefer using Map.unmarshalKey and Map.unmarshalValue if possible, since
// those have special cases that allow more types to be encoded.
//
// The common int32 and int64 types are directly handled to avoid
// unnecessary heap allocations as happening in the default case.
func unmarshalBytes(data interface{}, buf []byte) error {
switch value := data.(type) {
case unsafe.Pointer:
// This could be solved in Go 1.17 by unsafe.Slice instead. (https://github.com/golang/go/issues/19367)
// We could opt for removing unsafe.Pointer support in the lib as well.
sh := &reflect.SliceHeader{ //nolint:govet
Data: uintptr(value),
Len: len(buf),
Cap: len(buf),
}
var dst []byte
// Use unsafe.Slice when we drop support for pre1.17 (https://github.com/golang/go/issues/19367)
// We could opt for removing unsafe.Pointer support in the lib as well
sh := (*reflect.SliceHeader)(unsafe.Pointer(&dst))
sh.Data = uintptr(value)
sh.Len = len(buf)
sh.Cap = len(buf)
dst := *(*[]byte)(unsafe.Pointer(sh))
copy(dst, buf)
runtime.KeepAlive(value)
return nil
@@ -106,12 +119,38 @@ func unmarshalBytes(data interface{}, buf []byte) error {
case *[]byte:
*value = buf
return nil
case *int32:
if len(buf) < 4 {
return errors.New("int32 requires 4 bytes")
}
*value = int32(internal.NativeEndian.Uint32(buf))
return nil
case *uint32:
if len(buf) < 4 {
return errors.New("uint32 requires 4 bytes")
}
*value = internal.NativeEndian.Uint32(buf)
return nil
case *int64:
if len(buf) < 8 {
return errors.New("int64 requires 8 bytes")
}
*value = int64(internal.NativeEndian.Uint64(buf))
return nil
case *uint64:
if len(buf) < 8 {
return errors.New("uint64 requires 8 bytes")
}
*value = internal.NativeEndian.Uint64(buf)
return nil
case string:
return errors.New("require pointer to string")
case []byte:
return errors.New("require pointer to []byte")
default:
rd := bytes.NewReader(buf)
rd := bytesReaderPool.Get().(*bytes.Reader)
rd.Reset(buf)
defer bytesReaderPool.Put(rd)
if err := binary.Read(rd, internal.NativeEndian, value); err != nil {
return fmt.Errorf("decoding %T: %v", value, err)
}
@@ -142,7 +181,7 @@ func marshalPerCPUValue(slice interface{}, elemLength int) (internal.Pointer, er
return internal.Pointer{}, fmt.Errorf("per-CPU value exceeds number of CPUs")
}
alignedElemLength := align(elemLength, 8)
alignedElemLength := internal.Align(elemLength, 8)
buf := make([]byte, alignedElemLength*possibleCPUs)
for i := 0; i < sliceLen; i++ {
@@ -212,7 +251,3 @@ func unmarshalPerCPUValue(slicePtr interface{}, elemLength int, buf []byte) erro
reflect.ValueOf(slicePtr).Elem().Set(slice)
return nil
}
func align(n, alignment int) int {
return (int(n) + alignment - 1) / alignment * alignment
}

View File

@@ -57,16 +57,21 @@ type ProgramSpec struct {
// Name is passed to the kernel as a debug aid. Must only contain
// alpha numeric and '_' characters.
Name string
// Type determines at which hook in the kernel a program will run.
Type ProgramType
AttachType AttachType
// Name of a kernel data structure to attach to. It's interpretation
// depends on Type and AttachType.
AttachTo string
// Name of a kernel data structure or function to attach to. Its
// interpretation depends on Type and AttachType.
AttachTo string
// The program to attach to. Must be provided manually.
AttachTarget *Program
Instructions asm.Instructions
// Flags is passed to the kernel and specifies additional program
// load attributes.
Flags uint32
// License of the program. Some helpers are only available if
// the license is deemed compatible with the GPL.
//
@@ -146,7 +151,7 @@ func NewProgramWithOptions(spec *ProgramSpec, opts ProgramOptions) (*Program, er
func newProgramWithOptions(spec *ProgramSpec, opts ProgramOptions, handles *handleCache) (*Program, error) {
if len(spec.Instructions) == 0 {
return nil, errors.New("Instructions cannot be empty")
return nil, errors.New("instructions cannot be empty")
}
if spec.ByteOrder != nil && spec.ByteOrder != internal.NativeEndian {
@@ -166,16 +171,16 @@ func newProgramWithOptions(spec *ProgramSpec, opts ProgramOptions, handles *hand
kv = v.Kernel()
}
attr := &bpfProgLoadAttr{
progType: spec.Type,
progFlags: spec.Flags,
expectedAttachType: spec.AttachType,
license: internal.NewStringPointer(spec.License),
kernelVersion: kv,
attr := &internal.BPFProgLoadAttr{
ProgType: uint32(spec.Type),
ProgFlags: spec.Flags,
ExpectedAttachType: uint32(spec.AttachType),
License: internal.NewStringPointer(spec.License),
KernelVersion: kv,
}
if haveObjName() == nil {
attr.progName = internal.NewBPFObjName(spec.Name)
attr.ProgName = internal.NewBPFObjName(spec.Name)
}
var err error
@@ -190,35 +195,35 @@ func newProgramWithOptions(spec *ProgramSpec, opts ProgramOptions, handles *hand
var btfDisabled bool
var core btf.COREFixups
if spec.BTF != nil {
core, err = btf.ProgramFixups(spec.BTF, targetBTF)
core, err = spec.BTF.Fixups(targetBTF)
if err != nil {
return nil, fmt.Errorf("CO-RE relocations: %w", err)
}
handle, err := handles.btfHandle(btf.ProgramSpec(spec.BTF))
handle, err := handles.btfHandle(spec.BTF.Spec())
btfDisabled = errors.Is(err, btf.ErrNotSupported)
if err != nil && !btfDisabled {
return nil, fmt.Errorf("load BTF: %w", err)
}
if handle != nil {
attr.progBTFFd = uint32(handle.FD())
attr.ProgBTFFd = uint32(handle.FD())
recSize, bytes, err := btf.ProgramLineInfos(spec.BTF)
recSize, bytes, err := spec.BTF.LineInfos()
if err != nil {
return nil, fmt.Errorf("get BTF line infos: %w", err)
}
attr.lineInfoRecSize = recSize
attr.lineInfoCnt = uint32(uint64(len(bytes)) / uint64(recSize))
attr.lineInfo = internal.NewSlicePointer(bytes)
attr.LineInfoRecSize = recSize
attr.LineInfoCnt = uint32(uint64(len(bytes)) / uint64(recSize))
attr.LineInfo = internal.NewSlicePointer(bytes)
recSize, bytes, err = btf.ProgramFuncInfos(spec.BTF)
recSize, bytes, err = spec.BTF.FuncInfos()
if err != nil {
return nil, fmt.Errorf("get BTF function infos: %w", err)
}
attr.funcInfoRecSize = recSize
attr.funcInfoCnt = uint32(uint64(len(bytes)) / uint64(recSize))
attr.funcInfo = internal.NewSlicePointer(bytes)
attr.FuncInfoRecSize = recSize
attr.FuncInfoCnt = uint32(uint64(len(bytes)) / uint64(recSize))
attr.FuncInfo = internal.NewSlicePointer(bytes)
}
}
@@ -238,16 +243,41 @@ func newProgramWithOptions(spec *ProgramSpec, opts ProgramOptions, handles *hand
}
bytecode := buf.Bytes()
attr.instructions = internal.NewSlicePointer(bytecode)
attr.insCount = uint32(len(bytecode) / asm.InstructionSize)
attr.Instructions = internal.NewSlicePointer(bytecode)
attr.InsCount = uint32(len(bytecode) / asm.InstructionSize)
if spec.AttachTo != "" {
if spec.AttachTarget != nil {
info, err := spec.AttachTarget.Info()
if err != nil {
return nil, fmt.Errorf("load target BTF: %w", err)
}
btfID, ok := info.BTFID()
if !ok {
return nil, fmt.Errorf("load target BTF: no BTF info available")
}
btfHandle, err := btf.NewHandleFromID(btfID)
if err != nil {
return nil, fmt.Errorf("load target BTF: %w", err)
}
defer btfHandle.Close()
targetBTF = btfHandle.Spec()
if err != nil {
return nil, fmt.Errorf("load target BTF: %w", err)
}
}
target, err := resolveBTFType(targetBTF, spec.AttachTo, spec.Type, spec.AttachType)
if err != nil {
return nil, err
}
if target != nil {
attr.attachBTFID = target.ID()
attr.AttachBTFID = uint32(target.ID())
}
if spec.AttachTarget != nil {
attr.AttachProgFd = uint32(spec.AttachTarget.FD())
}
}
@@ -259,12 +289,12 @@ func newProgramWithOptions(spec *ProgramSpec, opts ProgramOptions, handles *hand
var logBuf []byte
if opts.LogLevel > 0 {
logBuf = make([]byte, logSize)
attr.logLevel = opts.LogLevel
attr.logSize = uint32(len(logBuf))
attr.logBuf = internal.NewSlicePointer(logBuf)
attr.LogLevel = opts.LogLevel
attr.LogSize = uint32(len(logBuf))
attr.LogBuf = internal.NewSlicePointer(logBuf)
}
fd, err := bpfProgLoad(attr)
fd, err := internal.BPFProgLoad(attr)
if err == nil {
return &Program{internal.CString(logBuf), fd, spec.Name, "", spec.Type}, nil
}
@@ -273,17 +303,20 @@ func newProgramWithOptions(spec *ProgramSpec, opts ProgramOptions, handles *hand
if opts.LogLevel == 0 && opts.LogSize >= 0 {
// Re-run with the verifier enabled to get better error messages.
logBuf = make([]byte, logSize)
attr.logLevel = 1
attr.logSize = uint32(len(logBuf))
attr.logBuf = internal.NewSlicePointer(logBuf)
attr.LogLevel = 1
attr.LogSize = uint32(len(logBuf))
attr.LogBuf = internal.NewSlicePointer(logBuf)
_, logErr = bpfProgLoad(attr)
fd, logErr = internal.BPFProgLoad(attr)
if logErr == nil {
fd.Close()
}
}
if errors.Is(logErr, unix.EPERM) && logBuf[0] == 0 {
// EPERM due to RLIMIT_MEMLOCK happens before the verifier, so we can
// check that the log is empty to reduce false positives.
return nil, fmt.Errorf("load program: RLIMIT_MEMLOCK may be too low: %w", logErr)
return nil, fmt.Errorf("load program: %w (MEMLOCK bay be too low, consider rlimit.RemoveMemlock)", logErr)
}
err = internal.ErrorWithLog(err, logBuf, logErr)
@@ -310,7 +343,7 @@ func NewProgramFromFD(fd int) (*Program, error) {
//
// Returns ErrNotExist, if there is no eBPF program with the given id.
func NewProgramFromID(id ProgramID) (*Program, error) {
fd, err := bpfObjGetFDByID(internal.BPF_PROG_GET_FD_BY_ID, uint32(id))
fd, err := internal.BPFObjGetFDByID(internal.BPF_PROG_GET_FD_BY_ID, uint32(id))
if err != nil {
return nil, fmt.Errorf("get program by id: %w", err)
}
@@ -677,45 +710,44 @@ func ProgramGetNextID(startID ProgramID) (ProgramID, error) {
//
// Deprecated: use ProgramInfo.ID() instead.
func (p *Program) ID() (ProgramID, error) {
info, err := bpfGetProgInfoByFD(p.fd)
info, err := bpfGetProgInfoByFD(p.fd, nil)
if err != nil {
return ProgramID(0), err
}
return ProgramID(info.id), nil
}
func resolveBTFType(kernel *btf.Spec, name string, progType ProgramType, attachType AttachType) (btf.Type, error) {
func resolveBTFType(spec *btf.Spec, name string, progType ProgramType, attachType AttachType) (btf.Type, error) {
type match struct {
p ProgramType
a AttachType
}
var target btf.Type
var typeName, featureName string
switch (match{progType, attachType}) {
case match{LSM, AttachLSMMac}:
target = new(btf.Func)
typeName = "bpf_lsm_" + name
featureName = name + " LSM hook"
case match{Tracing, AttachTraceIter}:
target = new(btf.Func)
typeName = "bpf_iter_" + name
featureName = name + " iterator"
case match{Extension, AttachNone}:
typeName = name
featureName = fmt.Sprintf("freplace %s", name)
default:
return nil, nil
}
if kernel == nil {
if spec == nil {
var err error
kernel, err = btf.LoadKernelSpec()
spec, err = btf.LoadKernelSpec()
if err != nil {
return nil, fmt.Errorf("load kernel spec: %w", err)
}
}
err := kernel.FindType(typeName, target)
var target *btf.Func
err := spec.FindType(typeName, &target)
if errors.Is(err, btf.ErrNotFound) {
return nil, &internal.UnsupportedFeatureError{
Name: featureName,
@@ -724,5 +756,6 @@ func resolveBTFType(kernel *btf.Spec, name string, progType ProgramType, attachT
if err != nil {
return nil, fmt.Errorf("resolve BTF for %s: %w", featureName, err)
}
return target, nil
}

View File

@@ -5,7 +5,7 @@
# Run all tests on a 5.4 kernel
# $ ./run-tests.sh 5.4
# Run a subset of tests:
# $ ./run-tests.sh 5.4 go test ./link
# $ ./run-tests.sh 5.4 ./link
set -euo pipefail
@@ -48,15 +48,17 @@ if [[ "${1:-}" = "--exec-vm" ]]; then
rm "${output}/fake-stdin"
fi
$sudo virtme-run --kimg "${input}/bzImage" --memory 768M --pwd \
--rwdir="${testdir}=${testdir}" \
--rodir=/run/input="${input}" \
--rwdir=/run/output="${output}" \
--script-sh "PATH=\"$PATH\" \"$script\" --exec-test $cmd" \
--qemu-opts -smp 2 # need at least two CPUs for some tests
if ! $sudo virtme-run --kimg "${input}/bzImage" --memory 768M --pwd \
--rwdir="${testdir}=${testdir}" \
--rodir=/run/input="${input}" \
--rwdir=/run/output="${output}" \
--script-sh "PATH=\"$PATH\" \"$script\" --exec-test $cmd" \
--kopt possible_cpus=2; then # need at least two CPUs for some tests
exit 23
fi
if [[ ! -e "${output}/success" ]]; then
exit 1
exit 42
fi
$sudo rm -r "$output"
@@ -74,7 +76,7 @@ elif [[ "${1:-}" = "--exec-test" ]]; then
dmesg -C
if ! "$@"; then
dmesg
exit 1
exit 1 # this return code is "swallowed" by qemu
fi
touch "/run/output/success"
exit 0
@@ -108,7 +110,7 @@ else
echo "No selftests found, disabling"
fi
args=(-v -short -coverpkg=./... -coverprofile=coverage.out -count 1 ./...)
args=(-short -coverpkg=./... -coverprofile=coverage.out -count 1 ./...)
if (( $# > 0 )); then
args=("$@")
fi

View File

@@ -1,13 +1,14 @@
package ebpf
import (
"bytes"
"errors"
"fmt"
"os"
"unsafe"
"github.com/cilium/ebpf/asm"
"github.com/cilium/ebpf/internal"
"github.com/cilium/ebpf/internal/btf"
"github.com/cilium/ebpf/internal/unix"
)
@@ -73,30 +74,6 @@ type bpfMapInfo struct {
btf_value_type_id uint32
}
type bpfProgLoadAttr struct {
progType ProgramType
insCount uint32
instructions internal.Pointer
license internal.Pointer
logLevel uint32
logSize uint32
logBuf internal.Pointer
kernelVersion uint32 // since 4.1 2541517c32be
progFlags uint32 // since 4.11 e07b98d9bffe
progName internal.BPFObjName // since 4.15 067cae47771c
progIfIndex uint32 // since 4.15 1f6f4cb7ba21
expectedAttachType AttachType // since 4.17 5e43f899b03a
progBTFFd uint32
funcInfoRecSize uint32
funcInfo internal.Pointer
funcInfoCnt uint32
lineInfoRecSize uint32
lineInfo internal.Pointer
lineInfoCnt uint32
attachBTFID btf.TypeID
attachProgFd uint32
}
type bpfProgInfo struct {
prog_type uint32
id uint32
@@ -107,7 +84,7 @@ type bpfProgInfo struct {
xlated_prog_insns internal.Pointer
load_time uint64 // since 4.15 cb4d2b3f03d8
created_by_uid uint32
nr_map_ids uint32
nr_map_ids uint32 // since 4.15 cb4d2b3f03d8
map_ids internal.Pointer
name internal.BPFObjName // since 4.15 067cae47771c
ifindex uint32
@@ -145,11 +122,6 @@ type bpfProgTestRunAttr struct {
duration uint32
}
type bpfGetFDByIDAttr struct {
id uint32
next uint32
}
type bpfMapFreezeAttr struct {
mapFd uint32
}
@@ -160,23 +132,6 @@ type bpfObjGetNextIDAttr struct {
openFlags uint32
}
func bpfProgLoad(attr *bpfProgLoadAttr) (*internal.FD, error) {
for {
fd, err := internal.BPF(internal.BPF_PROG_LOAD, unsafe.Pointer(attr), unsafe.Sizeof(*attr))
// As of ~4.20 the verifier can be interrupted by a signal,
// and returns EAGAIN in that case.
if errors.Is(err, unix.EAGAIN) {
continue
}
if err != nil {
return nil, err
}
return internal.NewFD(uint32(fd)), nil
}
}
func bpfProgTestRun(attr *bpfProgTestRunAttr) error {
_, err := internal.BPF(internal.BPF_PROG_TEST_RUN, unsafe.Pointer(attr), unsafe.Sizeof(*attr))
return err
@@ -372,6 +327,10 @@ func wrapMapError(err error) error {
return internal.SyscallError(ErrNotSupported, unix.ENOTSUPP)
}
if errors.Is(err, unix.E2BIG) {
return fmt.Errorf("key too big for map: %w", err)
}
return err
}
@@ -388,8 +347,13 @@ func bpfMapFreeze(m *internal.FD) error {
return err
}
func bpfGetProgInfoByFD(fd *internal.FD) (*bpfProgInfo, error) {
func bpfGetProgInfoByFD(fd *internal.FD, ids []MapID) (*bpfProgInfo, error) {
var info bpfProgInfo
if len(ids) > 0 {
info.nr_map_ids = uint32(len(ids))
info.map_ids = internal.NewPointer(unsafe.Pointer(&ids[0]))
}
if err := internal.BPFObjGetInfoByFD(fd, unsafe.Pointer(&info), unsafe.Sizeof(info)); err != nil {
return nil, fmt.Errorf("can't get program info: %w", err)
}
@@ -471,10 +435,30 @@ var haveBatchAPI = internal.FeatureTest("map batch api", "5.6", func() error {
return nil
})
func bpfObjGetFDByID(cmd internal.BPFCmd, id uint32) (*internal.FD, error) {
attr := bpfGetFDByIDAttr{
id: id,
var haveProbeReadKernel = internal.FeatureTest("bpf_probe_read_kernel", "5.5", func() error {
insns := asm.Instructions{
asm.Mov.Reg(asm.R1, asm.R10),
asm.Add.Imm(asm.R1, -8),
asm.Mov.Imm(asm.R2, 8),
asm.Mov.Imm(asm.R3, 0),
asm.FnProbeReadKernel.Call(),
asm.Return(),
}
ptr, err := internal.BPF(cmd, unsafe.Pointer(&attr), unsafe.Sizeof(attr))
return internal.NewFD(uint32(ptr)), err
}
buf := bytes.NewBuffer(make([]byte, 0, len(insns)*asm.InstructionSize))
if err := insns.Marshal(buf, internal.NativeEndian); err != nil {
return err
}
bytecode := buf.Bytes()
fd, err := internal.BPFProgLoad(&internal.BPFProgLoadAttr{
ProgType: uint32(Kprobe),
License: internal.NewStringPointer("GPL"),
Instructions: internal.NewSlicePointer(bytecode),
InsCount: uint32(len(bytecode) / asm.InstructionSize),
})
if err != nil {
return internal.ErrNotSupported
}
_ = fd.Close()
return nil
})

View File

@@ -4,12 +4,17 @@ import (
"github.com/cilium/ebpf/internal/unix"
)
//go:generate stringer -output types_string.go -type=MapType,ProgramType,AttachType,PinType
//go:generate stringer -output types_string.go -type=MapType,ProgramType,PinType
// MapType indicates the type map structure
// that will be initialized in the kernel.
type MapType uint32
// Max returns the latest supported MapType.
func (_ MapType) Max() MapType {
return maxMapType - 1
}
// All the various map types that can be created
const (
UnspecifiedMap MapType = iota
@@ -85,15 +90,28 @@ const (
SkStorage
// DevMapHash - Hash-based indexing scheme for references to network devices.
DevMapHash
StructOpts
// StructOpsMap - This map holds a kernel struct with its function pointer implemented in a BPF
// program.
StructOpsMap
// RingBuf - Similar to PerfEventArray, but shared across all CPUs.
RingBuf
// InodeStorage - Specialized local storage map for inodes.
InodeStorage
// TaskStorage - Specialized local storage map for task_struct.
TaskStorage
// maxMapType - Bound enum of MapTypes, has to be last in enum.
maxMapType
)
// Deprecated: StructOpts was a typo, use StructOpsMap instead.
//
// Declared as a variable to prevent stringer from picking it up
// as an enum value.
var StructOpts MapType = StructOpsMap
// hasPerCPUValue returns true if the Map stores a value per CPU.
func (mt MapType) hasPerCPUValue() bool {
return mt == PerCPUHash || mt == PerCPUArray || mt == LRUCPUHash
return mt == PerCPUHash || mt == PerCPUArray || mt == LRUCPUHash || mt == PerCPUCGroupStorage
}
// canStoreMap returns true if the map type accepts a map fd
@@ -111,6 +129,11 @@ func (mt MapType) canStoreProgram() bool {
// ProgramType of the eBPF program
type ProgramType uint32
// Max return the latest supported ProgramType.
func (_ ProgramType) Max() ProgramType {
return maxProgramType - 1
}
// eBPF program types
const (
UnspecifiedProgram ProgramType = iota
@@ -144,6 +167,7 @@ const (
Extension
LSM
SkLookup
maxProgramType
)
// AttachType of the eBPF program, needed to differentiate allowed context accesses in
@@ -151,6 +175,8 @@ const (
// Will cause invalid argument (EINVAL) at program load time if set incorrectly.
type AttachType uint32
//go:generate stringer -type AttachType -trimprefix Attach
// AttachNone is an alias for AttachCGroupInetIngress for readability reasons.
const AttachNone AttachType = 0
@@ -193,6 +219,10 @@ const (
AttachXDPCPUMap
AttachSkLookup
AttachXDP
AttachSkSKBVerdict
AttachSkReuseportSelect
AttachSkReuseportSelectOrMigrate
AttachPerfEvent
)
// AttachFlags of the eBPF program used in BPF_PROG_ATTACH command

View File

@@ -1,4 +1,4 @@
// Code generated by "stringer -output types_string.go -type=MapType,ProgramType,AttachType,PinType"; DO NOT EDIT.
// Code generated by "stringer -output types_string.go -type=MapType,ProgramType,PinType"; DO NOT EDIT.
package ebpf
@@ -34,15 +34,16 @@ func _() {
_ = x[Stack-23]
_ = x[SkStorage-24]
_ = x[DevMapHash-25]
_ = x[StructOpts-26]
_ = x[StructOpsMap-26]
_ = x[RingBuf-27]
_ = x[InodeStorage-28]
_ = x[TaskStorage-29]
_ = x[maxMapType-30]
}
const _MapType_name = "UnspecifiedMapHashArrayProgramArrayPerfEventArrayPerCPUHashPerCPUArrayStackTraceCGroupArrayLRUHashLRUCPUHashLPMTrieArrayOfMapsHashOfMapsDevMapSockMapCPUMapXSKMapSockHashCGroupStorageReusePortSockArrayPerCPUCGroupStorageQueueStackSkStorageDevMapHashStructOptsRingBufInodeStorageTaskStorage"
const _MapType_name = "UnspecifiedMapHashArrayProgramArrayPerfEventArrayPerCPUHashPerCPUArrayStackTraceCGroupArrayLRUHashLRUCPUHashLPMTrieArrayOfMapsHashOfMapsDevMapSockMapCPUMapXSKMapSockHashCGroupStorageReusePortSockArrayPerCPUCGroupStorageQueueStackSkStorageDevMapHashStructOpsMapRingBufInodeStorageTaskStoragemaxMapType"
var _MapType_index = [...]uint16{0, 14, 18, 23, 35, 49, 59, 70, 80, 91, 98, 108, 115, 126, 136, 142, 149, 155, 161, 169, 182, 200, 219, 224, 229, 238, 248, 258, 265, 277, 288}
var _MapType_index = [...]uint16{0, 14, 18, 23, 35, 49, 59, 70, 80, 91, 98, 108, 115, 126, 136, 142, 149, 155, 161, 169, 182, 200, 219, 224, 229, 238, 248, 260, 267, 279, 290, 300}
func (i MapType) String() string {
if i >= MapType(len(_MapType_index)-1) {
@@ -85,11 +86,12 @@ func _() {
_ = x[Extension-28]
_ = x[LSM-29]
_ = x[SkLookup-30]
_ = x[maxProgramType-31]
}
const _ProgramType_name = "UnspecifiedProgramSocketFilterKprobeSchedCLSSchedACTTracePointXDPPerfEventCGroupSKBCGroupSockLWTInLWTOutLWTXmitSockOpsSkSKBCGroupDeviceSkMsgRawTracepointCGroupSockAddrLWTSeg6LocalLircMode2SkReuseportFlowDissectorCGroupSysctlRawTracepointWritableCGroupSockoptTracingStructOpsExtensionLSMSkLookup"
const _ProgramType_name = "UnspecifiedProgramSocketFilterKprobeSchedCLSSchedACTTracePointXDPPerfEventCGroupSKBCGroupSockLWTInLWTOutLWTXmitSockOpsSkSKBCGroupDeviceSkMsgRawTracepointCGroupSockAddrLWTSeg6LocalLircMode2SkReuseportFlowDissectorCGroupSysctlRawTracepointWritableCGroupSockoptTracingStructOpsExtensionLSMSkLookupmaxProgramType"
var _ProgramType_index = [...]uint16{0, 18, 30, 36, 44, 52, 62, 65, 74, 83, 93, 98, 104, 111, 118, 123, 135, 140, 153, 167, 179, 188, 199, 212, 224, 245, 258, 265, 274, 283, 286, 294}
var _ProgramType_index = [...]uint16{0, 18, 30, 36, 44, 52, 62, 65, 74, 83, 93, 98, 104, 111, 118, 123, 135, 140, 153, 167, 179, 188, 199, 212, 224, 245, 258, 265, 274, 283, 286, 294, 308}
func (i ProgramType) String() string {
if i >= ProgramType(len(_ProgramType_index)-1) {
@@ -97,61 +99,6 @@ func (i ProgramType) String() string {
}
return _ProgramType_name[_ProgramType_index[i]:_ProgramType_index[i+1]]
}
func _() {
// An "invalid array index" compiler error signifies that the constant values have changed.
// Re-run the stringer command to generate them again.
var x [1]struct{}
_ = x[AttachNone-0]
_ = x[AttachCGroupInetIngress-0]
_ = x[AttachCGroupInetEgress-1]
_ = x[AttachCGroupInetSockCreate-2]
_ = x[AttachCGroupSockOps-3]
_ = x[AttachSkSKBStreamParser-4]
_ = x[AttachSkSKBStreamVerdict-5]
_ = x[AttachCGroupDevice-6]
_ = x[AttachSkMsgVerdict-7]
_ = x[AttachCGroupInet4Bind-8]
_ = x[AttachCGroupInet6Bind-9]
_ = x[AttachCGroupInet4Connect-10]
_ = x[AttachCGroupInet6Connect-11]
_ = x[AttachCGroupInet4PostBind-12]
_ = x[AttachCGroupInet6PostBind-13]
_ = x[AttachCGroupUDP4Sendmsg-14]
_ = x[AttachCGroupUDP6Sendmsg-15]
_ = x[AttachLircMode2-16]
_ = x[AttachFlowDissector-17]
_ = x[AttachCGroupSysctl-18]
_ = x[AttachCGroupUDP4Recvmsg-19]
_ = x[AttachCGroupUDP6Recvmsg-20]
_ = x[AttachCGroupGetsockopt-21]
_ = x[AttachCGroupSetsockopt-22]
_ = x[AttachTraceRawTp-23]
_ = x[AttachTraceFEntry-24]
_ = x[AttachTraceFExit-25]
_ = x[AttachModifyReturn-26]
_ = x[AttachLSMMac-27]
_ = x[AttachTraceIter-28]
_ = x[AttachCgroupInet4GetPeername-29]
_ = x[AttachCgroupInet6GetPeername-30]
_ = x[AttachCgroupInet4GetSockname-31]
_ = x[AttachCgroupInet6GetSockname-32]
_ = x[AttachXDPDevMap-33]
_ = x[AttachCgroupInetSockRelease-34]
_ = x[AttachXDPCPUMap-35]
_ = x[AttachSkLookup-36]
_ = x[AttachXDP-37]
}
const _AttachType_name = "AttachNoneAttachCGroupInetEgressAttachCGroupInetSockCreateAttachCGroupSockOpsAttachSkSKBStreamParserAttachSkSKBStreamVerdictAttachCGroupDeviceAttachSkMsgVerdictAttachCGroupInet4BindAttachCGroupInet6BindAttachCGroupInet4ConnectAttachCGroupInet6ConnectAttachCGroupInet4PostBindAttachCGroupInet6PostBindAttachCGroupUDP4SendmsgAttachCGroupUDP6SendmsgAttachLircMode2AttachFlowDissectorAttachCGroupSysctlAttachCGroupUDP4RecvmsgAttachCGroupUDP6RecvmsgAttachCGroupGetsockoptAttachCGroupSetsockoptAttachTraceRawTpAttachTraceFEntryAttachTraceFExitAttachModifyReturnAttachLSMMacAttachTraceIterAttachCgroupInet4GetPeernameAttachCgroupInet6GetPeernameAttachCgroupInet4GetSocknameAttachCgroupInet6GetSocknameAttachXDPDevMapAttachCgroupInetSockReleaseAttachXDPCPUMapAttachSkLookupAttachXDP"
var _AttachType_index = [...]uint16{0, 10, 32, 58, 77, 100, 124, 142, 160, 181, 202, 226, 250, 275, 300, 323, 346, 361, 380, 398, 421, 444, 466, 488, 504, 521, 537, 555, 567, 582, 610, 638, 666, 694, 709, 736, 751, 765, 774}
func (i AttachType) String() string {
if i >= AttachType(len(_AttachType_index)-1) {
return "AttachType(" + strconv.FormatInt(int64(i), 10) + ")"
}
return _AttachType_name[_AttachType_index[i]:_AttachType_index[i+1]]
}
func _() {
// An "invalid array index" compiler error signifies that the constant values have changed.
// Re-run the stringer command to generate them again.

View File

@@ -5,9 +5,7 @@ package events
import (
fmt "fmt"
_ "github.com/containerd/containerd/protobuf/plugin"
github_com_containerd_typeurl "github.com/containerd/typeurl"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
types "github.com/gogo/protobuf/types"
@@ -204,33 +202,33 @@ func init() {
}
var fileDescriptor_0d1f05b8626f83ea = []byte{
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0x05, 0x00, 0x00, 0xff, 0xff, 0xf5, 0x09, 0xe0, 0xd6, 0x0b, 0x03, 0x00, 0x00,
}
// Field returns the value for the given fieldpath as a string, if defined.

View File

@@ -19,8 +19,8 @@ syntax = "proto3";
package containerd.events;
import "google/protobuf/any.proto";
import "gogoproto/gogo.proto";
import "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import weak "gogoproto/gogo.proto";
import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
option go_package = "github.com/containerd/containerd/api/events;events";
option (containerd.plugin.fieldpath_all) = true;

View File

@@ -5,8 +5,6 @@ package events
import (
fmt "fmt"
_ "github.com/containerd/containerd/protobuf/plugin"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
io "io"
@@ -75,7 +73,7 @@ func init() {
}
var fileDescriptor_dfb34b8b808e2ecd = []byte{
// 224 bytes of a gzipped FileDescriptorProto
// 228 bytes of a gzipped FileDescriptorProto
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@@ -88,8 +86,9 @@ var fileDescriptor_dfb34b8b808e2ecd = []byte{
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0x61, 0x01, 0x00, 0x00,
}
// Field returns the value for the given fieldpath as a string, if defined.

View File

@@ -18,8 +18,8 @@ syntax = "proto3";
package containerd.events;
import "gogoproto/gogo.proto";
import "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import weak "gogoproto/gogo.proto";
import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
option go_package = "github.com/containerd/containerd/api/events;events";
option (containerd.plugin.fieldpath_all) = true;

View File

@@ -5,7 +5,6 @@ package events
import (
fmt "fmt"
_ "github.com/containerd/containerd/protobuf/plugin"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
io "io"
@@ -158,7 +157,7 @@ func init() {
}
var fileDescriptor_7085610f7b33e042 = []byte{
// 290 bytes of a gzipped FileDescriptorProto
// 292 bytes of a gzipped FileDescriptorProto
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@@ -175,9 +174,9 @@ var fileDescriptor_7085610f7b33e042 = []byte{
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0x77, 0x02, 0x00, 0x00,
}
// Field returns the value for the given fieldpath as a string, if defined.

View File

@@ -18,7 +18,7 @@ syntax = "proto3";
package containerd.services.images.v1;
import "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
option go_package = "github.com/containerd/containerd/api/events;events";
option (containerd.plugin.fieldpath_all) = true;

View File

@@ -5,8 +5,6 @@ package events
import (
fmt "fmt"
_ "github.com/containerd/containerd/protobuf/plugin"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
io "io"
@@ -159,7 +157,7 @@ func init() {
}
var fileDescriptor_6cd45d1d5adffe29 = []byte{
// 292 bytes of a gzipped FileDescriptorProto
// 296 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xb2, 0x4e, 0xcf, 0x2c, 0xc9,
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@@ -177,8 +175,8 @@ var fileDescriptor_6cd45d1d5adffe29 = []byte{
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0x00, 0x50, 0x87, 0x59, 0x83, 0x02, 0x00, 0x00,
}
// Field returns the value for the given fieldpath as a string, if defined.

View File

@@ -18,8 +18,8 @@ syntax = "proto3";
package containerd.events;
import "gogoproto/gogo.proto";
import "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import weak "gogoproto/gogo.proto";
import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
option go_package = "github.com/containerd/containerd/api/events;events";
option (containerd.plugin.fieldpath_all) = true;

View File

@@ -5,7 +5,6 @@ package events
import (
fmt "fmt"
_ "github.com/containerd/containerd/protobuf/plugin"
proto "github.com/gogo/protobuf/proto"
io "io"
math "math"
@@ -155,7 +154,7 @@ func init() {
}
var fileDescriptor_bd6c184d3d9aa5f2 = []byte{
// 233 bytes of a gzipped FileDescriptorProto
// 235 bytes of a gzipped FileDescriptorProto
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@@ -169,8 +168,8 @@ var fileDescriptor_bd6c184d3d9aa5f2 = []byte{
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}
// Field returns the value for the given fieldpath as a string, if defined.

View File

@@ -18,7 +18,7 @@ syntax = "proto3";
package containerd.events;
import "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
option go_package = "github.com/containerd/containerd/api/events;events";
option (containerd.plugin.fieldpath_all) = true;

View File

@@ -6,8 +6,6 @@ package events
import (
fmt "fmt"
types "github.com/containerd/containerd/api/types"
_ "github.com/containerd/containerd/protobuf/plugin"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
_ "github.com/gogo/protobuf/types"
github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
@@ -502,47 +500,48 @@ func init() {
}
var fileDescriptor_8db0813f7adfb63c = []byte{
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0xbe, 0x06, 0x00, 0x00,
}
// Field returns the value for the given fieldpath as a string, if defined.

View File

@@ -18,10 +18,10 @@ syntax = "proto3";
package containerd.events;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
import "google/protobuf/timestamp.proto";
import "github.com/containerd/containerd/api/types/mount.proto";
import "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
option go_package = "github.com/containerd/containerd/api/events;events";
option (containerd.plugin.fieldpath_all) = true;

View File

@@ -6,10 +6,8 @@ package events
import (
context "context"
fmt "fmt"
_ "github.com/containerd/containerd/protobuf/plugin"
github_com_containerd_ttrpc "github.com/containerd/ttrpc"
github_com_containerd_typeurl "github.com/containerd/typeurl"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
types "github.com/gogo/protobuf/types"
@@ -124,32 +122,32 @@ func init() {
}
var fileDescriptor_19f98672016720b5 = []byte{
// 392 bytes of a gzipped FileDescriptorProto
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}
// Field returns the value for the given fieldpath as a string, if defined.

View File

@@ -18,8 +18,8 @@ syntax = "proto3";
package containerd.services.events.ttrpc.v1;
import "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import "gogoproto/gogo.proto";
import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
import weak "gogoproto/gogo.proto";
import "google/protobuf/any.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/timestamp.proto";

View File

@@ -5,7 +5,6 @@ package types
import (
fmt "fmt"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
@@ -84,7 +83,7 @@ func init() {
}
var fileDescriptor_37f958df3707db9e = []byte{
// 309 bytes of a gzipped FileDescriptorProto
// 311 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xb2, 0x4e, 0xcf, 0x2c, 0xc9,
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@@ -103,8 +102,8 @@ var fileDescriptor_37f958df3707db9e = []byte{
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0x8a, 0x20, 0x4a, 0xda, 0x01, 0x00, 0x00,
}
func (m *Descriptor) Marshal() (dAtA []byte, err error) {

View File

@@ -18,7 +18,7 @@ syntax = "proto3";
package containerd.types;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
option go_package = "github.com/containerd/containerd/api/types;types";

View File

@@ -5,7 +5,6 @@ package types
import (
fmt "fmt"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
types "github.com/gogo/protobuf/types"
@@ -79,7 +78,7 @@ func init() {
}
var fileDescriptor_8d594d87edf6e6bc = []byte{
// 256 bytes of a gzipped FileDescriptorProto
// 258 bytes of a gzipped FileDescriptorProto
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@@ -94,8 +93,9 @@ var fileDescriptor_8d594d87edf6e6bc = []byte{
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0x00, 0x00,
}
func (m *Metric) Marshal() (dAtA []byte, err error) {

View File

@@ -18,7 +18,7 @@ syntax = "proto3";
package containerd.types;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";

View File

@@ -5,7 +5,6 @@ package types
import (
fmt "fmt"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
io "io"
math "math"
@@ -88,7 +87,7 @@ func init() {
}
var fileDescriptor_920196890d4a7b9f = []byte{
// 200 bytes of a gzipped FileDescriptorProto
// 202 bytes of a gzipped FileDescriptorProto
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@@ -100,8 +99,8 @@ var fileDescriptor_920196890d4a7b9f = []byte{
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}
func (m *Mount) Marshal() (dAtA []byte, err error) {

View File

@@ -18,7 +18,7 @@ syntax = "proto3";
package containerd.types;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
option go_package = "github.com/containerd/containerd/api/types;types";

View File

@@ -5,7 +5,6 @@ package types
import (
fmt "fmt"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
io "io"
math "math"
@@ -77,7 +76,7 @@ func init() {
}
var fileDescriptor_24ba7a4b83e2367e = []byte{
// 203 bytes of a gzipped FileDescriptorProto
// 205 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xb2, 0x4c, 0xcf, 0x2c, 0xc9,
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@@ -89,8 +88,8 @@ var fileDescriptor_24ba7a4b83e2367e = []byte{
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}
func (m *Platform) Marshal() (dAtA []byte, err error) {

View File

@@ -18,7 +18,7 @@ syntax = "proto3";
package containerd.types;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
option go_package = "github.com/containerd/containerd/api/types;types";

View File

@@ -5,7 +5,6 @@ package task
import (
fmt "fmt"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
types "github.com/gogo/protobuf/types"
@@ -169,41 +168,42 @@ func init() {
}
var fileDescriptor_391ef18c8ab0dc16 = []byte{
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}
func (m *Process) Marshal() (dAtA []byte, err error) {

View File

@@ -18,7 +18,7 @@ syntax = "proto3";
package containerd.v1.types;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
import "google/protobuf/timestamp.proto";
import "google/protobuf/any.proto";

View File

@@ -1,33 +0,0 @@
//go:build linux && gccgo
// +build linux,gccgo
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package mount
import (
_ "unsafe" // required for go:linkname.
)
//go:linkname beforeFork syscall.runtime__BeforeFork
func beforeFork()
//go:linkname afterFork syscall.runtime__AfterFork
func afterFork()
//go:linkname afterForkInChild syscall.runtime__AfterForkInChild
func afterForkInChild()

View File

@@ -1,6 +1,3 @@
//go:build linux && gc
// +build linux,gc
/*
Copyright The containerd Authors.

View File

@@ -1,17 +0,0 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package plugin

View File

@@ -1,66 +0,0 @@
// Code generated by protoc-gen-gogo. DO NOT EDIT.
// source: github.com/containerd/containerd/protobuf/plugin/fieldpath.proto
package plugin
import (
fmt "fmt"
proto "github.com/gogo/protobuf/proto"
descriptor "github.com/gogo/protobuf/protoc-gen-gogo/descriptor"
math "math"
)
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
var E_FieldpathAll = &proto.ExtensionDesc{
ExtendedType: (*descriptor.FileOptions)(nil),
ExtensionType: (*bool)(nil),
Field: 63300,
Name: "containerd.plugin.fieldpath_all",
Tag: "varint,63300,opt,name=fieldpath_all",
Filename: "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto",
}
var E_Fieldpath = &proto.ExtensionDesc{
ExtendedType: (*descriptor.MessageOptions)(nil),
ExtensionType: (*bool)(nil),
Field: 64400,
Name: "containerd.plugin.fieldpath",
Tag: "varint,64400,opt,name=fieldpath",
Filename: "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto",
}
func init() {
proto.RegisterExtension(E_FieldpathAll)
proto.RegisterExtension(E_Fieldpath)
}
func init() {
proto.RegisterFile("github.com/containerd/containerd/protobuf/plugin/fieldpath.proto", fileDescriptor_604a244430167409)
}
var fileDescriptor_604a244430167409 = []byte{
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}

View File

@@ -1,40 +0,0 @@
// Protocol Buffers for Go with Gadgets
//
// Copyright (c) 2013, The GoGo Authors. All rights reserved.
// http://github.com/gogo/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
syntax = "proto2";
package containerd.plugin;
import "google/protobuf/descriptor.proto";
extend google.protobuf.FileOptions {
optional bool fieldpath_all = 63300;
}
extend google.protobuf.MessageOptions {
optional bool fieldpath = 64400;
}

View File

@@ -206,5 +206,6 @@ file {
options {
go_package: "github.com/containerd/containerd/runtime/linux/runctypes;runctypes"
}
weak_dependency: 0
syntax: "proto3"
}

View File

@@ -5,7 +5,6 @@ package runctypes
import (
fmt "fmt"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
io "io"
math "math"
@@ -216,45 +215,45 @@ func init() {
}
var fileDescriptor_d20e2ba8b3cc58b9 = []byte{
// 605 bytes of a gzipped FileDescriptorProto
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// 604 bytes of a gzipped FileDescriptorProto
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}
func (m *RuncOptions) Marshal() (dAtA []byte, err error) {

View File

@@ -2,7 +2,7 @@ syntax = "proto3";
package containerd.linux.runc;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
option go_package = "github.com/containerd/containerd/runtime/linux/runctypes;runctypes";

View File

@@ -161,5 +161,6 @@ file {
options {
go_package: "github.com/containerd/containerd/runtime/v2/runc/options;options"
}
weak_dependency: 0
syntax: "proto3"
}

View File

@@ -5,7 +5,6 @@ package options
import (
fmt "fmt"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
io "io"
math "math"
@@ -192,44 +191,44 @@ func init() {
}
var fileDescriptor_4e5440d739e9a863 = []byte{
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}
func (m *Options) Marshal() (dAtA []byte, err error) {

View File

@@ -2,7 +2,7 @@ syntax = "proto3";
package containerd.runc.v1;
import "gogoproto/gogo.proto";
import weak "gogoproto/gogo.proto";
option go_package = "github.com/containerd/containerd/runtime/v2/runc/options;options";

View File

@@ -169,7 +169,7 @@ func setLogger(ctx context.Context, id string) (context.Context, error) {
l.Logger.SetLevel(logrus.DebugLevel)
}
f, err := openLog(ctx, id)
if err != nil {
if err != nil { //nolint:staticcheck // Ignore SA4023 as some platforms always return error
return ctx, err
}
l.Logger.SetOutput(f)
@@ -255,12 +255,12 @@ func run(ctx context.Context, manager Manager, initFunc Init, name string, confi
setRuntime()
signals, err := setupSignals(config)
if err != nil {
if err != nil { //nolint:staticcheck // Ignore SA4023 as some platforms always return error
return err
}
if !config.NoSubreaper {
if err := subreaper(); err != nil {
if err := subreaper(); err != nil { //nolint:staticcheck // Ignore SA4023 as some platforms always return error
return err
}
}
@@ -418,7 +418,7 @@ func run(ctx context.Context, manager Manager, initFunc Init, name string, confi
}
server, err := newServer()
if err != nil {
if err != nil { //nolint:staticcheck // Ignore SA4023 as some platforms always return error
return fmt.Errorf("failed creating server: %w", err)
}
@@ -428,7 +428,7 @@ func run(ctx context.Context, manager Manager, initFunc Init, name string, confi
}
}
if err := serve(ctx, server, signals, sd.Shutdown); err != nil {
if err := serve(ctx, server, signals, sd.Shutdown); err != nil { //nolint:staticcheck // Ignore SA4023 as some platforms always return error
if err != shutdown.ErrShutdown {
return err
}
@@ -460,7 +460,7 @@ func serve(ctx context.Context, server *ttrpc.Server, signals chan os.Signal, sh
}
l, err := serveListener(socketFlag)
if err != nil {
if err != nil { //nolint:staticcheck // Ignore SA4023 as some platforms always return error
return err
}
go func() {

View File

@@ -9,7 +9,6 @@ import (
types "github.com/containerd/containerd/api/types"
task "github.com/containerd/containerd/api/types/task"
github_com_containerd_ttrpc "github.com/containerd/ttrpc"
_ "github.com/gogo/protobuf/gogoproto"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
@@ -1129,89 +1128,89 @@ func init() {
}
var fileDescriptor_9202ee34bc3ad8ca = []byte{
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0xff, 0x59, 0xd9, 0xe6, 0x7f, 0x9e, 0x67, 0x8e, 0x75, 0xb1, 0xc5, 0x9d, 0xff, 0x02, 0x00, 0x00,
0xff, 0xff, 0xd3, 0xbf, 0xc3, 0xa9, 0x9b, 0x11, 0x00, 0x00,
}
func (m *CreateTaskRequest) Marshal() (dAtA []byte, err error) {

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