diff options
| author | Angelos D. Keromytis <angelos@cvs.openbsd.org> | 2000-08-03 08:12:34 +0000 |
|---|---|---|
| committer | Angelos D. Keromytis <angelos@cvs.openbsd.org> | 2000-08-03 08:12:34 +0000 |
| commit | d08a71cde627334e27da3636b83185df6b646c1c (patch) | |
| tree | 141cf40f67f069a171ae7753d50866d24ce7c913 /sys/netinet/ip_ipsp.c | |
| parent | 8bd38bcac701a585d2def9670f2f434a5412ba1c (diff) | |
Zeroize ip_sum before computing checksum (just general paranoia).
Diffstat (limited to 'sys/netinet/ip_ipsp.c')
| -rw-r--r-- | sys/netinet/ip_ipsp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet/ip_ipsp.c b/sys/netinet/ip_ipsp.c index bcfed6306ca..1a774dae98f 100644 --- a/sys/netinet/ip_ipsp.c +++ b/sys/netinet/ip_ipsp.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ip_ipsp.c,v 1.96 2000/06/19 03:43:15 itojun Exp $ */ +/* $OpenBSD: ip_ipsp.c,v 1.97 2000/08/03 08:12:33 angelos Exp $ */ /* * The authors of this code are John Ioannidis (ji@tla.org), @@ -1768,6 +1768,7 @@ ipsp_process_packet(struct mbuf *m, struct tdb *tdb, int af, int tunalready) ip = mtod(m, struct ip *); ip->ip_len = htons(m->m_pkthdr.len); + ip->ip_sum = 0; ip->ip_sum = in_cksum(m, ip->ip_hl << 2); } #endif /* INET */ @@ -1916,6 +1917,7 @@ ipsp_process_done(struct mbuf *m, struct tdb *tdb) case AF_INET: NTOHS(ip->ip_len); NTOHS(ip->ip_off); + ip->ip_sum = 0; ip->ip_sum = in_cksum(m, ip->ip_hl << 2); /* Fix checksum */ return ip_output(m, NULL, NULL, IP_ENCAPSULATED | IP_RAWOUTPUT, |