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wire: move extract_channel_id to here.

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It can be useful for other daemons.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2018-01-10 15:17:22 +10:30
committed by Christian Decker
parent e34ec8da2d
commit 2bc2502b23
3 changed files with 30 additions and 27 deletions
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27
lightningd/peer_control.c
View File

@@ -445,33 +445,6 @@ bool unsupported_features(const u8 *gfeatures, const u8 *lfeatures)
sizeof(supported_local_features)); sizeof(supported_local_features));
} }
/* Extract channel_id from various packets, return true if possible. */
static bool extract_channel_id(const u8 *in_pkt, struct channel_id *channel_id)
{
u64 ignored_u64;
u32 ignored_u32;
u16 ignored_u16;
u8 ignored_u8;
struct pubkey ignored_pubkey;
struct bitcoin_blkid ignored_chainhash;
if (fromwire_channel_reestablish(in_pkt, NULL, channel_id,
&ignored_u64, &ignored_u64))
return true;
if (fromwire_open_channel(in_pkt, NULL, &ignored_chainhash,
channel_id, &ignored_u64,
&ignored_u64, &ignored_u64,
&ignored_u64, &ignored_u64,
&ignored_u64, &ignored_u32,
&ignored_u16, &ignored_u16,
&ignored_pubkey, &ignored_pubkey,
&ignored_pubkey, &ignored_pubkey,
&ignored_pubkey, &ignored_pubkey,
&ignored_u8))
return true;
return false;
}
/** /**
* peer_channel_new -- Instantiate a new channel for the given peer and save it * peer_channel_new -- Instantiate a new channel for the given peer and save it
* *

27
wire/peer_wire.c
View File

@@ -73,3 +73,30 @@ bool is_unknown_msg_discardable(const u8 *cursor)
enum wire_type t = fromwire_peektype(cursor); enum wire_type t = fromwire_peektype(cursor);
return unknown_type(t) && (t & 1); return unknown_type(t) && (t & 1);
} }
/* Extract channel_id from various packets, return true if possible. */
bool extract_channel_id(const u8 *in_pkt, struct channel_id *channel_id)
{
u64 ignored_u64;
u32 ignored_u32;
u16 ignored_u16;
u8 ignored_u8;
struct pubkey ignored_pubkey;
struct bitcoin_blkid ignored_chainhash;
if (fromwire_channel_reestablish(in_pkt, NULL, channel_id,
&ignored_u64, &ignored_u64))
return true;
if (fromwire_open_channel(in_pkt, NULL, &ignored_chainhash,
channel_id, &ignored_u64,
&ignored_u64, &ignored_u64,
&ignored_u64, &ignored_u64,
&ignored_u64, &ignored_u32,
&ignored_u16, &ignored_u16,
&ignored_pubkey, &ignored_pubkey,
&ignored_pubkey, &ignored_pubkey,
&ignored_pubkey, &ignored_pubkey,
&ignored_u8))
return true;
return false;
}

3
wire/peer_wire.h
View File

@@ -19,6 +19,9 @@ bool is_unknown_msg_discardable(const u8 *cursor);
/* Return true if it's a gossip message. */ /* Return true if it's a gossip message. */
bool is_gossip_msg(const u8 *cursor); bool is_gossip_msg(const u8 *cursor);
/* Extract channel_id from various packets, return true if possible. */
bool extract_channel_id(const u8 *in_pkt, struct channel_id *channel_id);
/* BOLT #2: /* BOLT #2:
* *
* Only the least-significant bit of `channel_flags` is currently * Only the least-significant bit of `channel_flags` is currently