diff options
| author | Michael Tuexen <tuexen@FreeBSD.org> | 2014-05-09 14:15:48 +0000 |
|---|---|---|
| committer | Michael Tuexen <tuexen@FreeBSD.org> | 2014-05-09 14:15:48 +0000 |
| commit | d58c15339b2cbd5b282b93061cb9afc78fe83204 (patch) | |
| tree | e035203f33da4efd3bdee5aafdecbb0f0b888533 /sys/netinet/udp_usrreq.c | |
| parent | b7c74331507e1d855c75fea328a52309e9aa1c20 (diff) | |
| download | src-d58c15339b2cbd5b282b93061cb9afc78fe83204.tar.gz src-d58c15339b2cbd5b282b93061cb9afc78fe83204.zip | |
Fix a logic bug which prevented the sending of UDP packet with 0 checksum.
This bug was introduced in r264212 and should be X-MFCed with that
revision, if UDP-Lite support if MFCed.
Notes
Notes:
svn path=/head/; revision=265776
Diffstat (limited to 'sys/netinet/udp_usrreq.c')
| -rw-r--r-- | sys/netinet/udp_usrreq.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index fb248c6efaa1..8cae36a6ddc6 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -1375,7 +1375,8 @@ udp_output(struct inpcb *inp, struct mbuf *m, struct sockaddr *addr, faddr.s_addr = INADDR_BROADCAST; if ((ui->ui_sum = in_cksum(m, sizeof(struct ip) + cscov)) == 0) ui->ui_sum = 0xffff; - } else if (V_udp_cksum || !cscov_partial) { + } else if (V_udp_cksum || pr == IPPROTO_UDPLITE) { + /* for UDP-Lite full checksum coverage is requested */ if (inp->inp_flags & INP_ONESBCAST) faddr.s_addr = INADDR_BROADCAST; ui->ui_sum = in_pseudo(ui->ui_src.s_addr, faddr.s_addr, |