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| author | tuexen <tuexen@FreeBSD.org> | 2012-06-12 14:56:08 +0000 |
|---|---|---|
| committer | tuexen <tuexen@FreeBSD.org> | 2012-06-12 14:56:08 +0000 |
| commit | 33675cab555bc824f32778ba0fed56733a19ef6e (patch) | |
| tree | 88541982875708605e986966593f3e877b339302 /sys/netinet/udp_usrreq.c | |
| parent | 719aef50bd421831e51d8fe038cfda67f60bde1e (diff) | |
| download | FreeBSD-src-33675cab555bc824f32778ba0fed56733a19ef6e.zip FreeBSD-src-33675cab555bc824f32778ba0fed56733a19ef6e.tar.gz | |
Add a cmsg of type IP_TOS for UDP/IPv4 sockets to specify the TOS byte.
MFC after: 3 days
Diffstat (limited to 'sys/netinet/udp_usrreq.c')
| -rw-r--r-- | sys/netinet/udp_usrreq.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index d3e7aca..9f947a6 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -956,6 +956,7 @@ udp_output(struct inpcb *inp, struct mbuf *m, struct sockaddr *addr, int ipflags; u_short fport, lport; int unlock_udbinfo; + u_char tos; /* * udp_output() may need to temporarily bind or connect the current @@ -972,6 +973,7 @@ udp_output(struct inpcb *inp, struct mbuf *m, struct sockaddr *addr, src.sin_family = 0; INP_RLOCK(inp); + tos = inp->inp_ip_tos; if (control != NULL) { /* * XXX: Currently, we assume all the optional information is @@ -1010,6 +1012,14 @@ udp_output(struct inpcb *inp, struct mbuf *m, struct sockaddr *addr, *(struct in_addr *)CMSG_DATA(cm); break; + case IP_TOS: + if (cm->cmsg_len != CMSG_LEN(sizeof(u_char))) { + error = EINVAL; + break; + } + tos = *(u_char *)CMSG_DATA(cm); + break; + default: error = ENOPROTOOPT; break; @@ -1225,7 +1235,7 @@ udp_output(struct inpcb *inp, struct mbuf *m, struct sockaddr *addr, ui->ui_sum = 0; ((struct ip *)ui)->ip_len = sizeof (struct udpiphdr) + len; ((struct ip *)ui)->ip_ttl = inp->inp_ip_ttl; /* XXX */ - ((struct ip *)ui)->ip_tos = inp->inp_ip_tos; /* XXX */ + ((struct ip *)ui)->ip_tos = tos; /* XXX */ UDPSTAT_INC(udps_opackets); if (unlock_udbinfo == UH_WLOCKED) |
