diff options
Diffstat (limited to 'sys/netinet/libalias/alias_db.c')
-rw-r--r-- | sys/netinet/libalias/alias_db.c | 34 |
1 files changed, 11 insertions, 23 deletions
diff --git a/sys/netinet/libalias/alias_db.c b/sys/netinet/libalias/alias_db.c index 958e87b..9a7d3a5 100644 --- a/sys/netinet/libalias/alias_db.c +++ b/sys/netinet/libalias/alias_db.c @@ -2005,9 +2005,9 @@ GetAckModified(struct alias_link *lnk) return (lnk->data.tcp->state.ack_modified); } - +// XXX ip free int -GetDeltaAckIn(struct ip *pip, struct alias_link *lnk) +GetDeltaAckIn(u_long ack, struct alias_link *lnk) { /* Find out how much the ACK number has been altered for an incoming @@ -2016,12 +2016,7 @@ packet size was altered is searched. */ int i; - struct tcphdr *tc; int delta, ack_diff_min; - u_long ack; - - tc = ip_next(pip); - ack = tc->th_ack; delta = 0; ack_diff_min = -1; @@ -2049,9 +2044,9 @@ packet size was altered is searched. return (delta); } - +// XXX ip free int -GetDeltaSeqOut(struct ip *pip, struct alias_link *lnk) +GetDeltaSeqOut(u_long seq, struct alias_link *lnk) { /* Find out how much the sequence number has been altered for an outgoing @@ -2060,12 +2055,7 @@ packet size was altered is searched. */ int i; - struct tcphdr *tc; int delta, seq_diff_min; - u_long seq; - - tc = ip_next(pip); - seq = tc->th_seq; delta = 0; seq_diff_min = -1; @@ -2093,9 +2083,10 @@ packet size was altered is searched. return (delta); } - +// XXX ip free void -AddSeq(struct ip *pip, struct alias_link *lnk, int delta) +AddSeq(struct alias_link *lnk, int delta, u_int ip_hl, u_short ip_len, + u_long th_seq, u_int th_off) { /* When a TCP packet has been altered in length, save this @@ -2103,19 +2094,16 @@ information in a circular list. If enough packets have been altered, then this list will begin to overwrite itself. */ - struct tcphdr *tc; struct ack_data_record x; int hlen, tlen, dlen; int i; - tc = ip_next(pip); - - hlen = (pip->ip_hl + tc->th_off) << 2; - tlen = ntohs(pip->ip_len); + hlen = (ip_hl + th_off) << 2; + tlen = ntohs(ip_len); dlen = tlen - hlen; - x.ack_old = htonl(ntohl(tc->th_seq) + dlen); - x.ack_new = htonl(ntohl(tc->th_seq) + dlen + delta); + x.ack_old = htonl(ntohl(th_seq) + dlen); + x.ack_new = htonl(ntohl(th_seq) + dlen + delta); x.delta = delta; x.active = 1; |