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htlc: save fail message in HTLC.

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It's not currently encrypted, but at least you get some idea now why
an HTLC failed.  We (ab)use HTTP error codes for the moment.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2016-08-31 14:51:41 +09:30
parent 169c6b53cb
commit d4ddebd55a
14 changed files with 445 additions and 76 deletions
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38
lightning.pb-c.h
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@@ -32,6 +32,7 @@ typedef struct _Route Route;
typedef struct _Routing Routing;
typedef struct _UpdateAddHtlc UpdateAddHtlc;
typedef struct _UpdateFulfillHtlc UpdateFulfillHtlc;
typedef struct _FailInfo FailInfo;
typedef struct _FailReason FailReason;
typedef struct _UpdateFailHtlc UpdateFailHtlc;
typedef struct _UpdateFee UpdateFee;
@@ -404,8 +405,20 @@ struct _UpdateFulfillHtlc
/*
* FIXME: Failure information.
* This is encrypted in fail_reason.
*/
struct _FailInfo
{
ProtobufCMessage base;
BitcoinPubkey *id;
uint32_t error_code;
char *reason;
};
#define FAIL_INFO__INIT \
{ PROTOBUF_C_MESSAGE_INIT (&fail_info__descriptor) \
, NULL, 0, NULL }
struct _FailReason
{
ProtobufCMessage base;
@@ -915,6 +928,25 @@ UpdateFulfillHtlc *
void update_fulfill_htlc__free_unpacked
(UpdateFulfillHtlc *message,
ProtobufCAllocator *allocator);
/* FailInfo methods */
void fail_info__init
(FailInfo *message);
size_t fail_info__get_packed_size
(const FailInfo *message);
size_t fail_info__pack
(const FailInfo *message,
uint8_t *out);
size_t fail_info__pack_to_buffer
(const FailInfo *message,
ProtobufCBuffer *buffer);
FailInfo *
fail_info__unpack
(ProtobufCAllocator *allocator,
size_t len,
const uint8_t *data);
void fail_info__free_unpacked
(FailInfo *message,
ProtobufCAllocator *allocator);
/* FailReason methods */
void fail_reason__init
(FailReason *message);
@@ -1139,6 +1171,9 @@ typedef void (*UpdateAddHtlc_Closure)
typedef void (*UpdateFulfillHtlc_Closure)
(const UpdateFulfillHtlc *message,
void *closure_data);
typedef void (*FailInfo_Closure)
(const FailInfo *message,
void *closure_data);
typedef void (*FailReason_Closure)
(const FailReason *message,
void *closure_data);
@@ -1190,6 +1225,7 @@ extern const ProtobufCMessageDescriptor route__descriptor;
extern const ProtobufCMessageDescriptor routing__descriptor;
extern const ProtobufCMessageDescriptor update_add_htlc__descriptor;
extern const ProtobufCMessageDescriptor update_fulfill_htlc__descriptor;
extern const ProtobufCMessageDescriptor fail_info__descriptor;
extern const ProtobufCMessageDescriptor fail_reason__descriptor;
extern const ProtobufCMessageDescriptor update_fail_htlc__descriptor;
extern const ProtobufCMessageDescriptor update_fee__descriptor;