diff options
| author | Guy Harris <guy@alum.mit.edu> | 2019-05-01 00:23:08 -0700 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2019-05-01 00:23:08 -0700 |
| commit | beacedb0b2b2e4ceb1b8b626b94f66ba592356a4 (patch) | |
| tree | ccf346a7ca6a3b5585a807c8b9d35beefe67f579 /print-udp.c | |
| parent | a948af27e45066e7a213dfc5f2f3c7cc324aaa5b (diff) | |
| download | tcpdump-beacedb0b2b2e4ceb1b8b626b94f66ba592356a4.tar.gz | |
Remove the IPv6 payload length checks for checksumming.
If there isn't an IPv6 payload, there isn't any TCP or UDP packet, and
there's no TCP or UDP header to checksum, so there's no need for the
check (it's not there for IPv4).
Diffstat (limited to 'print-udp.c')
| -rw-r--r-- | print-udp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/print-udp.c b/print-udp.c index ed517580..bf5c7ba5 100644 --- a/print-udp.c +++ b/print-udp.c @@ -571,7 +571,7 @@ udp_print(netdissect_options *ndo, const u_char *bp, u_int length, ND_PRINT("[udp sum ok] "); } } - else if (IP_V(ip) == 6 && GET_BE_U_2(ip6->ip6_plen)) { + else if (IP_V(ip) == 6) { /* for IPv6, UDP checksum is mandatory */ if (ND_TTEST_LEN(cp, length)) { sum = udp6_cksum(ndo, ip6, up, length + sizeof(struct udphdr)); |