Aren/NetBSD
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Move the mtod calls *after* we've made sure that the packet has passed the

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filter successfully. Otherwise it can be NULL if the filter blocked it,
and we die. How did this ever work?
This commit is contained in:
christos 1997-04-15 00:41:52 +00:00
parent 2357b53997
commit 0659cacda6
2 changed files with 4 additions and 4 deletions
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4
sys/netinet/ip_input.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: ip_input.c,v 1.48 1997/02/26 04:09:32 mrg Exp $ */
/* $NetBSD: ip_input.c,v 1.49 1997/04/15 00:41:52 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1988, 1993
@ -258,9 +258,9 @@ next:
for (pfh = pfil_hook_get(PFIL_IN); pfh; pfh = pfh->pfil_link.le_next)
if (pfh->pfil_func) {
rv = pfh->pfil_func(ip, hlen, m->m_pkthdr.rcvif, 0, &m0);
ip = mtod(m = m0, struct ip *);
if (rv)
goto next;
ip = mtod(m = m0, struct ip *);
}
#endif /* PFIL_HOOKS */

4
sys/netinet/ip_output.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: ip_output.c,v 1.38 1997/02/18 20:49:36 mrg Exp $ */
/* $NetBSD: ip_output.c,v 1.39 1997/04/15 00:41:53 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1988, 1990, 1993
@ -305,11 +305,11 @@ ip_output(m0, va_alist)
for (pfh = pfil_hook_get(PFIL_OUT); pfh; pfh = pfh->pfil_link.le_next)
if (pfh->pfil_func) {
rv = pfh->pfil_func(ip, hlen, ifp, 1, &m1);
ip = mtod(m = m1, struct ip *);
if (rv) {
error = EHOSTUNREACH;
goto done;
}
ip = mtod(m = m1, struct ip *);
}
#endif /* PFIL_HOOKS */
sendit: