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in(s)_moptions: free before tearing down inpcb

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This commit is contained in:
Matt Macy 2018-05-20 20:08:21 +00:00
parent f2daab2c8f
commit 1a3d880c26
1 changed files with 19 additions and 23 deletions
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42
sys/netinet/in_pcb.c
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@ -1341,32 +1341,15 @@ in_pcbfree_deferred(epoch_context_t ctx)
{
struct inpcb *inp;
struct inpcbinfo *pcbinfo;
#ifdef INET6
struct ip6_moptions *im6o = NULL;
#endif
#ifdef INET
struct ip_moptions *imo = NULL;
#endif
inp = __containerof(ctx, struct inpcb, inp_epoch_ctx);
pcbinfo = inp->inp_pcbinfo;
INP_WLOCK(inp);
#ifdef INET
imo = inp->inp_moptions;
inp->inp_moptions = NULL;
#endif
/* XXXRW: Do as much as possible here. */
#if defined(IPSEC) || defined(IPSEC_SUPPORT)
if (inp->inp_sp != NULL)
ipsec_delete_pcbpolicy(inp);
#endif
#ifdef INET6
if (inp->inp_vflag & INP_IPV6PROTO) {
ip6_freepcbopts(inp->in6p_outputopts);
im6o = inp->in6p_moptions;
inp->in6p_moptions = NULL;
}
#endif
if (inp->inp_options)
(void)m_free(inp->inp_options);
@ -1379,12 +1362,6 @@ in_pcbfree_deferred(epoch_context_t ctx)
#endif
if (!in_pcbrele_wlocked(inp))
INP_WUNLOCK(inp);
#ifdef INET6
ip6_freemoptions(im6o);
#endif
#ifdef INET
inp_freemoptions(imo);
#endif
}
/*
@ -1399,6 +1376,12 @@ in_pcbfree_deferred(epoch_context_t ctx)
void
in_pcbfree(struct inpcb *inp)
{
#ifdef INET6
struct ip6_moptions *im6o = NULL;
#endif
#ifdef INET
struct ip_moptions *imo = NULL;
#endif
struct inpcbinfo *pcbinfo = inp->inp_pcbinfo;
KASSERT(inp->inp_socket == NULL, ("%s: inp_socket != NULL", __func__));
@ -1417,6 +1400,19 @@ in_pcbfree(struct inpcb *inp)
}
#endif
INP_WLOCK_ASSERT(inp);
#ifdef INET
imo = inp->inp_moptions;
inp->inp_moptions = NULL;
inp_freemoptions(imo);
#endif
#ifdef INET6
if (inp->inp_vflag & INP_IPV6PROTO) {
ip6_freepcbopts(inp->in6p_outputopts);
im6o = inp->in6p_moptions;
inp->in6p_moptions = NULL;
ip6_freemoptions(im6o);
}
#endif
/* Remove first from list */
INP_LIST_WLOCK(pcbinfo);
inp->inp_gencnt = ++pcbinfo->ipi_gencnt;