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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-09-28 15:01:06 +0900 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2021-09-28 15:07:13 +0900 |
| commit | e9ea43136cab8f95075869657cf8736e33699252 (patch) | |
| tree | ac09798522b82f82fb0534126833513b8c03e2ec /src | |
| parent | b5dce07a5ebe070b70f85ed683fbcaf82a862b5a (diff) | |
| download | systemd-e9ea43136cab8f95075869657cf8736e33699252.tar.gz | |
sd-lldp-rx: add comments about the three multicast addresses
Diffstat (limited to 'src')
| -rw-r--r-- | src/libsystemd-network/lldp-network.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libsystemd-network/lldp-network.c b/src/libsystemd-network/lldp-network.c index 43141b2d79..d11af3ebbb 100644 --- a/src/libsystemd-network/lldp-network.c +++ b/src/libsystemd-network/lldp-network.c @@ -56,15 +56,18 @@ int lldp_network_bind_raw_socket(int ifindex) { if (r < 0) return -errno; + /* customer bridge */ r = setsockopt(fd, SOL_PACKET, PACKET_ADD_MEMBERSHIP, &mreq, sizeof(mreq)); if (r < 0) return -errno; + /* non TPMR bridge */ mreq.mr_address[ETH_ALEN - 1] = 0x03; r = setsockopt(fd, SOL_PACKET, PACKET_ADD_MEMBERSHIP, &mreq, sizeof(mreq)); if (r < 0) return -errno; + /* nearest bridge */ mreq.mr_address[ETH_ALEN - 1] = 0x0E; r = setsockopt(fd, SOL_PACKET, PACKET_ADD_MEMBERSHIP, &mreq, sizeof(mreq)); if (r < 0) |