diff options
Diffstat (limited to 'sys/netinet6/sctp6_usrreq.c')
| -rw-r--r-- | sys/netinet6/sctp6_usrreq.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/sys/netinet6/sctp6_usrreq.c b/sys/netinet6/sctp6_usrreq.c index c6fc3cf..9597528 100644 --- a/sys/netinet6/sctp6_usrreq.c +++ b/sys/netinet6/sctp6_usrreq.c @@ -51,6 +51,7 @@ __FBSDID("$FreeBSD$"); #include <netinet/sctp_input.h> #include <netinet/sctp_output.h> #include <netinet/sctp_bsd_addr.h> +#include <netinet/sctp_crc32.h> #include <netinet/udp.h> #ifdef IPSEC @@ -75,7 +76,7 @@ sctp6_input(struct mbuf **i_pak, int *offp, int proto) uint32_t vrf_id = 0; struct inpcb *in6p_ip; struct sctp_chunkhdr *ch; - int length, mlen, offset, iphlen; + int length, offset, iphlen; uint8_t ecn_bits; struct sctp_tcb *stcb = NULL; int pkt_len = 0; @@ -126,16 +127,28 @@ sctp6_input(struct mbuf **i_pak, int *offp, int proto) /* destination port of 0 is illegal, based on RFC2960. */ if (sh->dest_port == 0) goto bad; + + SCTPDBG(SCTP_DEBUG_CRCOFFLOAD, + "sctp_input(): Packet of length %d received on %s with csum_flags 0x%x.\n", + m->m_pkthdr.len, + if_name(m->m_pkthdr.rcvif), + m->m_pkthdr.csum_flags); + if (m->m_pkthdr.csum_flags & CSUM_SCTP_VALID) { + SCTP_STAT_INCR(sctps_recvhwcrc); + goto sctp_skip_csum; + } check = sh->checksum; /* save incoming checksum */ if ((check == 0) && (SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback)) && (IN6_ARE_ADDR_EQUAL(&ip6->ip6_src, &ip6->ip6_dst))) { + SCTP_STAT_INCR(sctps_recvnocrc); goto sctp_skip_csum; } sh->checksum = 0; /* prepare for calc */ - calc_check = sctp_calculate_sum(m, &mlen, iphlen); + calc_check = sctp_calculate_cksum(m, iphlen); + SCTP_STAT_INCR(sctps_recvswcrc); if (calc_check != check) { - SCTPDBG(SCTP_DEBUG_INPUT1, "Bad CSUM on SCTP packet calc_check:%x check:%x m:%p mlen:%d iphlen:%d\n", - calc_check, check, m, mlen, iphlen); + SCTPDBG(SCTP_DEBUG_INPUT1, "Bad CSUM on SCTP packet calc_check:%x check:%x m:%p phlen:%d\n", + calc_check, check, m, iphlen); stcb = sctp_findassociation_addr(m, iphlen, offset - sizeof(*ch), sh, ch, &in6p, &net, vrf_id); if ((net) && (port)) { |
