diff options
| author | Bill Paul <wpaul@FreeBSD.org> | 2004-05-14 03:57:17 +0000 |
|---|---|---|
| committer | Bill Paul <wpaul@FreeBSD.org> | 2004-05-14 03:57:17 +0000 |
| commit | 6f8aee22681c9a4b16edbcdb4411e35b59a3a27a (patch) | |
| tree | acf57da54960cf7c1a7e07a08e28c5f569478068 /sys/netinet6 | |
| parent | 15a3ddef19dfbbff023d10ad4282bd0e7900fb61 (diff) | |
Notes
Diffstat (limited to 'sys/netinet6')
| -rw-r--r-- | sys/netinet6/ip6_output.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/netinet6/ip6_output.c b/sys/netinet6/ip6_output.c index 5e0105cba63b9..b955f40e28056 100644 --- a/sys/netinet6/ip6_output.c +++ b/sys/netinet6/ip6_output.c @@ -1044,6 +1044,7 @@ skip_ipsec2:; u_char nextproto; struct ip6ctlparam ip6cp; u_int32_t mtu32; + int qslots = ifp->if_snd.ifq_maxlen - ifp->if_snd.ifq_len; /* * Too large for the destination or interface; @@ -1068,6 +1069,17 @@ skip_ipsec2:; goto bad; } + /* + * Verify that we have any chance at all of being able to queue + * the packet or packet fragments + */ + if (qslots <= 0 || ((u_int)qslots * (mtu - hlen) + < tlen /* - hlen */)) { + error = ENOBUFS; + ip6stat.ip6s_odropped++; + goto bad; + } + mnext = &m->m_nextpkt; /* |