diff options
| -rw-r--r-- | share/man/man4/udplite.4 | 18 | ||||
| -rw-r--r-- | sys/netinet/udp_usrreq.c | 2 | ||||
| -rw-r--r-- | sys/netinet6/udp6_usrreq.c | 4 |
3 files changed, 12 insertions, 12 deletions
diff --git a/share/man/man4/udplite.4 b/share/man/man4/udplite.4 index 5d06b14..859c966 100644 --- a/share/man/man4/udplite.4 +++ b/share/man/man4/udplite.4 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd April 7, 2014 +.Dd October 1, 2014 .Dt UDPLITE 4 .Os .Sh NAME @@ -55,16 +55,16 @@ and tested with .Bl -tag -width ".Dv UDPLITE_SEND_CSCOV" .It Dv UDPLITE_SEND_CSCOV This option sets the sender checksum coverage. -A value of zero indicates that the entire packet -is covered by the checksum. -A value of 1 to 7 must be discarded by the receiver. +A value of zero indicates that all sent packets will have +full checksum coverage. +A value of 8 to 65535 limits the checksum coverage of all sent packets +to the value given. .It Dv UDPLITE_RECV_CSCOV This option is the receiver-side analogue. -It is truly optional, i.e. not required to enable traffic -with partial checksum coverage. -Its function is that of a traffic filter: -when enabled, it instructs the kernel to drop -all packets which have a coverage less than this value. +A value of zero instructs the kernel to drop all received packets +not having full checksum coverage. +A value of 8 to 65535 instructs the kernel to drop all received +packets with a partial checksum coverage smaller than the value specified. .El .Sh ERRORS A socket operation may fail with one of the following errors returned: diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index 52bc07a..f065f80 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -679,7 +679,7 @@ udp_input(struct mbuf *m, int off) struct udpcb *up; up = intoudpcb(inp); - if (up->u_rxcslen > len) { + if (up->u_rxcslen == 0 || up->u_rxcslen > len) { INP_RUNLOCK(inp); m_freem(m); return; diff --git a/sys/netinet6/udp6_usrreq.c b/sys/netinet6/udp6_usrreq.c index 0142804..a2bcbc7 100644 --- a/sys/netinet6/udp6_usrreq.c +++ b/sys/netinet6/udp6_usrreq.c @@ -259,7 +259,7 @@ udp6_input(struct mbuf **mp, int *offp, int proto) if (uh_sum != 0) { UDPSTAT_INC(udps_badsum); - goto badunlocked; + /*goto badunlocked;*/ } /* @@ -479,7 +479,7 @@ udp6_input(struct mbuf **mp, int *offp, int proto) INP_RLOCK_ASSERT(inp); up = intoudpcb(inp); if (cscov_partial) { - if (up->u_rxcslen > ulen) { + if (up->u_rxcslen == 0 || up->u_rxcslen > ulen) { INP_RUNLOCK(inp); m_freem(m); return (IPPROTO_DONE); |
