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| author | qingli <qingli@FreeBSD.org> | 2009-08-14 23:44:59 +0000 |
|---|---|---|
| committer | qingli <qingli@FreeBSD.org> | 2009-08-14 23:44:59 +0000 |
| commit | 5d81358a8ddc86a4956b176b693465e4502603f5 (patch) | |
| tree | f7f3868ca6de4e103e090e672e61975f0c287655 /sys/netinet | |
| parent | 51ca260850b223c3af3ad2e408661f29d2d54044 (diff) | |
| download | FreeBSD-src-5d81358a8ddc86a4956b176b693465e4502603f5.zip FreeBSD-src-5d81358a8ddc86a4956b176b693465e4502603f5.tar.gz | |
In function ip_output(), the cached route is flushed when there is a
mismatch between the cached entry and the intended destination. The
cached rtentry{} is flushed but the associated llentry{} is not. This
causes the wrong destination MAC address being used in the output
packets. The fix is to flush the llentry{} when rtentry{} is cleared.
Reviewed by: kmacy, rwatson
Approved by: re
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/ip_output.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c index bf2a5f8..33ba838 100644 --- a/sys/netinet/ip_output.c +++ b/sys/netinet/ip_output.c @@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$"); #include <sys/ucred.h> #include <net/if.h> +#include <net/if_llatbl.h> #include <net/netisr.h> #include <net/pfil.h> #include <net/route.h> @@ -201,9 +202,12 @@ again: if (ro->ro_rt && ((ro->ro_rt->rt_flags & RTF_UP) == 0 || dst->sin_family != AF_INET || dst->sin_addr.s_addr != ip->ip_dst.s_addr)) { - if (!nortfree) + if (!nortfree) { RTFREE(ro->ro_rt); + LLE_FREE(ro->ro_lle); + } ro->ro_rt = (struct rtentry *)NULL; + ro->ro_lle = (struct llentry *)NULL; } #ifdef IPFIREWALL_FORWARD if (ro->ro_rt == NULL && fwd_tag == NULL) { |
