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advance tail pointer in nd6_output_lle and check lla_output return against NULL

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This commit is contained in:
Kip Macy 2008-12-16 02:33:53 +00:00
parent 688d079b2d
commit 15209fb6e8
1 changed files with 8 additions and 4 deletions
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12
sys/netinet6/nd6.c
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@ -1407,7 +1407,7 @@ nd6_cache_lladdr(struct ifnet *ifp, struct in6_addr *from, char *lladdr,
int newstate = 0;
uint16_t router = 0;
struct sockaddr_in6 sin6;
struct mbuf *chain = NULL;
struct mbuf *tail = NULL, *chain = NULL;
int static_route = 0;
IF_AFDATA_UNLOCK_ASSERT(ifp);
@ -1526,7 +1526,9 @@ nd6_cache_lladdr(struct ifnet *ifp, struct in6_addr *from, char *lladdr,
* just set the 2nd argument as the
* 1st one.
*/
nd6_output_lle(ifp, ifp, m_hold, L3_ADDR_SIN6(ln), NULL, ln, &chain);
nd6_output_lle(ifp, ifp, m_hold, L3_ADDR_SIN6(ln), NULL, ln, &tail);
if ((tail != NULL) && chain == (NULL))
chain = tail;
}
if (chain)
memcpy(&sin6, L3_ADDR_SIN6(ln), sizeof(sin6));
@ -1889,8 +1891,10 @@ nd6_output_lle(struct ifnet *ifp, struct ifnet *origifp, struct mbuf *m0,
if (lle != NULL) {
if (*tail == NULL)
*tail = m;
else
else {
(*tail)->m_nextpkt = m;
*tail = m;
}
return (error);
}
if ((ifp->if_flags & IFF_LOOPBACK) != 0) {
@ -2037,7 +2041,7 @@ nd6_storelladdr(struct ifnet *ifp, struct rtentry *rt0, struct mbuf *m,
ln = lla_lookup(LLTABLE6(ifp), 0, dst);
IF_AFDATA_UNLOCK(ifp);
if ((ln == NULL) || !(ln->la_flags & LLE_VALID)) {
if (ln)
if (ln != NULL)
LLE_RUNLOCK(ln);
/* this could happen, if we could not allocate memory */
m_freem(m);