d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Disable TX checksum offload for UDP-Lite completely. It wasn't used for

Browse Source 
partial checksum coverage, but even for full checksum coverage it doesn't
work.
This was discussed with Kevin Lo (kevlo@).
This commit is contained in:
Michael Tuexen 2014-05-12 09:46:48 +00:00
parent 1d6b6e9d46
commit a485f139c3
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sys/netinet/udp_usrreq.c
View File

@ -1370,13 +1370,17 @@ udp_output(struct inpcb *inp, struct mbuf *m, struct sockaddr *addr,
* Set up checksum and output datagram.
*/
ui->ui_sum = 0;
if (cscov_partial) {
if (pr == IPPROTO_UDPLITE) {
if (inp->inp_flags & INP_ONESBCAST)
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 || pr == IPPROTO_UDPLITE) {
/* for UDP-Lite full checksum coverage is requested */
if (cscov_partial) {
if ((ui->ui_sum = in_cksum(m, sizeof(struct ip) + cscov)) == 0)
ui->ui_sum = 0xffff;
} else {
if ((ui->ui_sum = in_cksum(m, sizeof(struct udpiphdr) + len)) == 0)
ui->ui_sum = 0xffff;
}
} else if (V_udp_cksum) {
if (inp->inp_flags & INP_ONESBCAST)
faddr.s_addr = INADDR_BROADCAST;
ui->ui_sum = in_pseudo(ui->ui_src.s_addr, faddr.s_addr,