Author: rrs
Date: Fri Mar 12 22:58:52 2010
New Revision: 205104
URL: http://svn.freebsd.org/changeset/base/205104
Log:
The proper fix for the delayed SCTP checksum is to
have the delayed function take an argument as to the offset
to the SCTP header. This allows it to work for V4 and V6.
This of course means changing all callers of the function
to either pass the header len, if they have it, or create
it (ip_hl << 2 or sizeof(ip6_hdr)).
PR: 144529
MFC after: 2 weeks
Modified:
head/sys/dev/xen/netback/netback.c
head/sys/netinet/ip_divert.c
head/sys/netinet/ip_ipsec.c
head/sys/netinet/ip_output.c
head/sys/netinet/sctp_crc32.c
head/sys/netinet/sctp_crc32.h
head/sys/netinet6/ip6_output.c
Modified: head/sys/dev/xen/netback/netback.c
==============================================================================
--- head/sys/dev/xen/netback/netback.c Fri Mar 12 22:39:35 2010
(r205103)
+++ head/sys/dev/xen/netback/netback.c Fri Mar 12 22:58:52 2010
(r205104)
@@ -302,7 +302,7 @@ fixup_checksum(struct mbuf *m)
m->m_pkthdr.csum_flags &= ~CSUM_TCP;
#ifdef SCTP
} else if (sw_csum & CSUM_SCTP) {
- sctp_delayed_cksum(m);
+ sctp_delayed_cksum(m, iphlen);
sw_csum &= ~CSUM_SCTP;
#endif
} else {
Modified: head/sys/netinet/ip_divert.c
==============================================================================
--- head/sys/netinet/ip_divert.c Fri Mar 12 22:39:35 2010
(r205103)
+++ head/sys/netinet/ip_divert.c Fri Mar 12 22:58:52 2010
(r205104)
@@ -227,7 +227,7 @@ divert_packet(struct mbuf *m, int incomi
#ifdef SCTP
if (m->m_pkthdr.csum_flags & CSUM_SCTP) {
ip->ip_len = ntohs(ip->ip_len);
- sctp_delayed_cksum(m);
+ sctp_delayed_cksum(m, (uint32_t)(ip->ip_hl << 2));
m->m_pkthdr.csum_flags &= ~CSUM_SCTP;
ip->ip_len = htons(ip->ip_len);
}
Modified: head/sys/netinet/ip_ipsec.c
==============================================================================
--- head/sys/netinet/ip_ipsec.c Fri Mar 12 22:39:35 2010 (r205103)
+++ head/sys/netinet/ip_ipsec.c Fri Mar 12 22:58:52 2010 (r205104)
@@ -342,7 +342,7 @@ ip_ipsec_output(struct mbuf **m, struct
}
#ifdef SCTP
if ((*m)->m_pkthdr.csum_flags & CSUM_SCTP) {
- sctp_delayed_cksum(*m);
+ sctp_delayed_cksum(*m, (uint32_t)(ip->ip_hl << 2));
(*m)->m_pkthdr.csum_flags &= ~CSUM_SCTP;
}
#endif
Modified: head/sys/netinet/ip_output.c
==============================================================================
--- head/sys/netinet/ip_output.c Fri Mar 12 22:39:35 2010
(r205103)
+++ head/sys/netinet/ip_output.c Fri Mar 12 22:58:52 2010
(r205104)
@@ -583,7 +583,7 @@ passout:
}
#ifdef SCTP
if (sw_csum & CSUM_SCTP) {
- sctp_delayed_cksum(m);
+ sctp_delayed_cksum(m, (uint32_t)(ip->ip_hl << 2));
sw_csum &= ~CSUM_SCTP;
}
#endif
@@ -725,7 +725,7 @@ ip_fragment(struct ip *ip, struct mbuf *
#ifdef SCTP
if (m0->m_pkthdr.csum_flags & CSUM_SCTP &&
(if_hwassist_flags & CSUM_IP_FRAGS) == 0) {
- sctp_delayed_cksum(m0);
+ sctp_delayed_cksum(m0, hlen);
m0->m_pkthdr.csum_flags &= ~CSUM_SCTP;
}
#endif
Modified: head/sys/netinet/sctp_crc32.c
==============================================================================
--- head/sys/netinet/sctp_crc32.c Fri Mar 12 22:39:35 2010
(r205103)
+++ head/sys/netinet/sctp_crc32.c Fri Mar 12 22:58:52 2010
(r205104)
@@ -127,14 +127,12 @@ sctp_calculate_cksum(struct mbuf *m, uin
void
-sctp_delayed_cksum(struct mbuf *m)
+sctp_delayed_cksum(struct mbuf *m, uint32_t offset)
{
struct ip *ip;
uint32_t checksum;
- uint32_t offset;
ip = mtod(m, struct ip *);
- offset = ip->ip_hl << 2;
checksum = sctp_calculate_cksum(m, offset);
SCTP_STAT_DECR(sctps_sendhwcrc);
SCTP_STAT_INCR(sctps_sendswcrc);
Modified: head/sys/netinet/sctp_crc32.h
==============================================================================
--- head/sys/netinet/sctp_crc32.h Fri Mar 12 22:39:35 2010
(r205103)
+++ head/sys/netinet/sctp_crc32.h Fri Mar 12 22:58:52 2010
(r205104)
@@ -39,7 +39,7 @@ __FBSDID("$FreeBSD$");
#if defined(_KERNEL) || defined(__Userspace__)
uint32_t sctp_calculate_cksum(struct mbuf *, uint32_t);
-void sctp_delayed_cksum(struct mbuf *);
+void sctp_delayed_cksum(struct mbuf *, uint32_t offset);
#endif /* _KERNEL */
Modified: head/sys/netinet6/ip6_output.c
==============================================================================
--- head/sys/netinet6/ip6_output.c Fri Mar 12 22:39:35 2010
(r205103)
+++ head/sys/netinet6/ip6_output.c Fri Mar 12 22:58:52 2010
(r205104)
@@ -872,7 +872,7 @@ passout:
#ifdef SCTP
sw_csum = m->m_pkthdr.csum_flags & ~ifp->if_hwassist;
if (sw_csum & CSUM_SCTP) {
- sctp_delayed_cksum(m);
+ sctp_delayed_cksum(m, sizeof(struct ip6_hdr));
sw_csum &= ~CSUM_SCTP;
}
#endif
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