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author | Alexander V. Chernikov <melifaro@FreeBSD.org> | 2021-04-05 19:58:57 +0000 |
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committer | Alexander V. Chernikov <melifaro@FreeBSD.org> | 2021-04-10 13:47:49 +0000 |
commit | c3a456defaf28df8d6f47704d606248f6c22146c (patch) | |
tree | 7b1496ecd488cb3420c7e1e345a7bf80c37bee1b /sys/netinet/in_mcast.c | |
parent | 15ca66220874c177602c13a114b2f3d17773b788 (diff) | |
download | src-c3a456defaf28df8d6f47704d606248f6c22146c.tar.gz src-c3a456defaf28df8d6f47704d606248f6c22146c.zip |
Always use inp fib in the inp_lookup_mcast_ifp().
inp_lookup_mcast_ifp() is static and is only used in the inp_join_group().
The latter function is also static, and is only used in the inp_setmoptions(),
which relies on inp being non-NULL.
As a result, in the current code, inp_lookup_mcast_ifp() is always called
with non-NULL inp. Eliminate unused RT_DEFAULT_FIB condition and always
use inp fib instead.
Differential Revision: https://reviews.freebsd.org/D29594
Reviewed by: kp
MFC after: 2 weeks
Diffstat (limited to 'sys/netinet/in_mcast.c')
-rw-r--r-- | sys/netinet/in_mcast.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sys/netinet/in_mcast.c b/sys/netinet/in_mcast.c index 392856785dd2..f0827fcf3451 100644 --- a/sys/netinet/in_mcast.c +++ b/sys/netinet/in_mcast.c @@ -1865,8 +1865,7 @@ inp_getmoptions(struct inpcb *inp, struct sockopt *sopt) * specific physical links in the networking stack, or which need * to join link-scope groups before IPv4 addresses are configured. * - * If inp is non-NULL, use this socket's current FIB number for any - * required FIB lookup. + * Use this socket's current FIB number for any required FIB lookup. * If ina is INADDR_ANY, look up the group address in the unicast FIB, * and use its ifp; usually, this points to the default next-hop. * @@ -1887,8 +1886,8 @@ inp_lookup_mcast_ifp(const struct inpcb *inp, struct rm_priotracker in_ifa_tracker; struct ifnet *ifp; struct nhop_object *nh; - uint32_t fibnum; + KASSERT(inp != NULL, ("%s: inp must not be NULL", __func__)); KASSERT(gsin->sin_family == AF_INET, ("%s: not AF_INET", __func__)); KASSERT(IN_MULTICAST(ntohl(gsin->sin_addr.s_addr)), ("%s: not multicast", __func__)); @@ -1901,8 +1900,7 @@ inp_lookup_mcast_ifp(const struct inpcb *inp, if_ref(ifp); IN_IFADDR_RUNLOCK(&in_ifa_tracker); } else { - fibnum = inp ? inp->inp_inc.inc_fibnum : RT_DEFAULT_FIB; - nh = fib4_lookup(fibnum, gsin->sin_addr, 0, NHR_NONE, 0); + nh = fib4_lookup(inp->inp_inc.inc_fibnum, gsin->sin_addr, 0, NHR_NONE, 0); if (nh != NULL) { ifp = nh->nh_ifp; if_ref(ifp); |