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103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
#include <wire/peer_wire.h>
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static bool unknown_type(enum wire_type t)
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{
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switch (t) {
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case WIRE_INIT:
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case WIRE_ERROR:
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case WIRE_OPEN_CHANNEL:
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case WIRE_ACCEPT_CHANNEL:
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case WIRE_FUNDING_CREATED:
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case WIRE_FUNDING_SIGNED:
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case WIRE_FUNDING_LOCKED:
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case WIRE_SHUTDOWN:
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case WIRE_CLOSING_SIGNED:
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case WIRE_UPDATE_ADD_HTLC:
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case WIRE_UPDATE_FULFILL_HTLC:
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case WIRE_UPDATE_FAIL_HTLC:
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case WIRE_UPDATE_FAIL_MALFORMED_HTLC:
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case WIRE_COMMITMENT_SIGNED:
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case WIRE_REVOKE_AND_ACK:
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case WIRE_UPDATE_FEE:
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case WIRE_CHANNEL_REESTABLISH:
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case WIRE_ANNOUNCEMENT_SIGNATURES:
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case WIRE_CHANNEL_ANNOUNCEMENT:
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case WIRE_NODE_ANNOUNCEMENT:
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case WIRE_CHANNEL_UPDATE:
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case WIRE_PING:
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case WIRE_PONG:
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return false;
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}
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return true;
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}
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bool is_gossip_msg(const u8 *cursor)
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{
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switch (fromwire_peektype(cursor)) {
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case WIRE_CHANNEL_ANNOUNCEMENT:
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case WIRE_NODE_ANNOUNCEMENT:
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case WIRE_CHANNEL_UPDATE:
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return true;
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case WIRE_INIT:
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case WIRE_ERROR:
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case WIRE_OPEN_CHANNEL:
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case WIRE_ACCEPT_CHANNEL:
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case WIRE_FUNDING_CREATED:
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case WIRE_FUNDING_SIGNED:
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case WIRE_FUNDING_LOCKED:
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case WIRE_SHUTDOWN:
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case WIRE_CLOSING_SIGNED:
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case WIRE_UPDATE_ADD_HTLC:
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case WIRE_UPDATE_FULFILL_HTLC:
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case WIRE_UPDATE_FAIL_HTLC:
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case WIRE_UPDATE_FAIL_MALFORMED_HTLC:
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case WIRE_COMMITMENT_SIGNED:
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case WIRE_REVOKE_AND_ACK:
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case WIRE_UPDATE_FEE:
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case WIRE_PING:
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case WIRE_PONG:
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break;
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}
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return false;
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}
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/* Return true if it's an unknown message. cursor is a tal ptr. */
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bool is_unknown_msg(const u8 *cursor)
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{
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return unknown_type(fromwire_peektype(cursor));
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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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{
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enum wire_type t = fromwire_peektype(cursor);
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return unknown_type(t) && (t & 1);
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}
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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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{
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u64 ignored_u64;
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u32 ignored_u32;
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u16 ignored_u16;
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u8 ignored_u8;
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struct pubkey ignored_pubkey;
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struct bitcoin_blkid ignored_chainhash;
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if (fromwire_channel_reestablish(in_pkt, NULL, channel_id,
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&ignored_u64, &ignored_u64))
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return true;
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if (fromwire_open_channel(in_pkt, NULL, &ignored_chainhash,
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channel_id, &ignored_u64,
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&ignored_u64, &ignored_u64,
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&ignored_u64, &ignored_u64,
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&ignored_u64, &ignored_u32,
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&ignored_u16, &ignored_u16,
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&ignored_pubkey, &ignored_pubkey,
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&ignored_pubkey, &ignored_pubkey,
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&ignored_pubkey, &ignored_pubkey,
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&ignored_u8))
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return true;
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return false;
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}
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