diff options
| author | rwatson <rwatson@FreeBSD.org> | 2005-08-03 00:18:35 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2005-08-03 00:18:35 +0000 |
| commit | 9918d13b80941400bfab87834b1e2f1eea58c7c7 (patch) | |
| tree | 9a4e586ffbcd1450917ee5e388a4e1eb38254e32 /sys/dev/sk | |
| parent | efa13b9da9fc80838e2c73140ae27393b3660da4 (diff) | |
| download | FreeBSD-src-9918d13b80941400bfab87834b1e2f1eea58c7c7.zip FreeBSD-src-9918d13b80941400bfab87834b1e2f1eea58c7c7.tar.gz | |
Modify device drivers supporting multicast addresses to lock if_addr_mtx
over iteration of their multicast address lists when synchronizing the
hardware address filter with the network stack-maintained list.
Problem reported by: Ed Maste (emaste at phaedrus dot sandvine dot ca>
MFC after: 1 week
Diffstat (limited to 'sys/dev/sk')
| -rw-r--r-- | sys/dev/sk/if_sk.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/sk/if_sk.c b/sys/dev/sk/if_sk.c index bcc4b03..0daf42e 100644 --- a/sys/dev/sk/if_sk.c +++ b/sys/dev/sk/if_sk.c @@ -823,6 +823,7 @@ sk_setmulti(sc_if) hashes[1] = 0xFFFFFFFF; } else { i = 1; + IF_ADDR_LOCK(ifp); TAILQ_FOREACH_REVERSE(ifma, &ifp->if_multiaddrs, ifmultihead, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; @@ -855,6 +856,7 @@ sk_setmulti(sc_if) else hashes[1] |= (1 << (h - 32)); } + IF_ADDR_UNLOCK(ifp); } switch(sc->sk_type) { |
