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fed5a117e7
structeq() is too dangerous: if a structure has padding, it can fail silently. The new ccan/structeq instead provides a macro to define foo_eq(), which does the right thing in case of padding (which none of our structures currently have anyway). Upgrade ccan, and use it everywhere. Except run-peer-wire.c, which is only testing code and can use raw memcmp(): valgrind will tell us if padding exists. Interestingly, we still declared short_channel_id_eq, even though we didn't define it any more! Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
#ifndef LIGHTNING_WIRE_PEER_WIRE_H
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#define LIGHTNING_WIRE_PEER_WIRE_H
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#include "config.h"
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#include <stdbool.h>
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#include <wire/gen_peer_wire.h>
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/* BOLT #1:
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*
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* A receiving node:
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* - upon receiving a message of _odd_, unknown type:
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* - MUST ignore the received message.
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* - upon receiving a message of _even_, unknown type:
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* - MUST fail the channels.
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*/
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/* Return true if it's an unknown ODD message. cursor is a tal ptr. */
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bool is_unknown_msg_discardable(const u8 *cursor);
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/* Return true if it's a message for gossipd. */
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bool is_msg_for_gossipd(const u8 *cursor);
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/* Extract channel_id from various packets, return true if possible. */
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bool extract_channel_id(const u8 *in_pkt, struct channel_id *channel_id);
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/* BOLT #2:
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*
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* Only the least-significant bit of `channel_flags` is currently
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* defined: `announce_channel`. This indicates whether the initiator
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* of the funding flow wishes to advertise this channel publicly to
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* the network, as detailed within [BOLT #7]
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*/
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#define CHANNEL_FLAGS_ANNOUNCE_CHANNEL 1
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/* BOLT #2:
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*
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* The sending node:
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*...
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* - MUST set `funding_satoshis` to less than 2^24 satoshi.
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*/
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#define MAX_FUNDING_SATOSHI ((1 << 24) - 1)
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#endif /* LIGHTNING_WIRE_PEER_WIRE_H */
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