usr.sbin/ppp/mp.c

110 inc_seq(unsigned is12bit, u_int32_t seq)
112   seq++;
114     if (seq & 0xfffff000)
115       seq = 0;
116   } else if (seq & 0xff000000)
117     seq = 0;
118   return seq;
148     header->seq = val & 0x0fff;
151     ua_ntohl(MBUF_CTOP(m), &header->seq);
152     if (header->seq & 0x3f000000) {
156     header->begin = header->seq & 0x80000000 ? 1 : 0;
157     header->end = header->seq & 0x40000000 ? 1 : 0;
158     header->seq &= 0x00ffffff;
247   mp->out.seq = 0;
250   mp->seq.min_in = 0;
251   mp->seq.next_in = 0;
341     mp->out.seq = 0;
344     mp->seq.min_in = 0;
345     mp->seq.next_in = 0;
410   mplink->seq = 0;
419   u_int32_t seq;
433     seq = p->dl->mp.seq;
434     p->dl->mp.seq = mh.seq;
436     seq = mp->seq.min_in;
438   if (mp->seq.min_in == seq) {
440      * We've received new data on the link that has our min (oldest) seq.
441      * Figure out which link now has the smallest (oldest) seq.
445     mp->seq.min_in = (u_int32_t)-1;
448           (mp->seq.min_in == (u_int32_t)-1 ||
449            isbefore(mp->local_is12bit, dl->mp.seq, mp->seq.min_in)))
450         mp->seq.min_in = dl->mp.seq;
460   seq = mp->seq.next_in;
474       if (m && isbefore(mp->local_is12bit, mh.seq, h.seq)) {
487     if (h.seq != seq) {
489       if (isbefore(mp->local_is12bit, seq, mp->seq.min_in)) {
503          * the next `begin' fragment OR 'till seq.min_in - whichever
510             h.seq--;  /* We're gonna look for fragment with h.seq+1 */
514           log_Printf(LogDEBUG, "Drop frag %u\n", h.seq);
517         } while (mp->inbufs && (isbefore(mp->local_is12bit, mp->seq.min_in,
518                                          h.seq) || h.end));
528         mp->seq.next_in = seq = inc_seq(mp->local_is12bit, h.seq);
545           first = h.seq;
548                     (u_long)h.seq);
553                     (u_long)h.seq - 1);
578                    (u_long)first, (u_long)h.seq, m_length(q));
583       mp->seq.next_in = seq = inc_seq(mp->local_is12bit, h.seq);
588       seq = inc_seq(mp->local_is12bit, seq);
599       if (isbefore(mp->local_is12bit, mh.seq, h.seq))
642     val = (begin << 15) | (end << 14) | (u_int16_t)mp->out.seq;
648     val = (begin << 31) | (end << 30) | (u_int32_t)mp->out.seq;
654                mp->out.seq, m_length(m), l->name);
655   mp->out.seq = inc_seq(mp->peer_is12bit, mp->out.seq);
846       first = mp_ReadHeader(mp, mp->inbufs, &mh) ? mh.seq : 0;
847       last = mp_ReadHeader(mp, lm, &mh) ? mh.seq : 0;
849                     first, last, (unsigned long)mp->seq.next_in,
850                     (unsigned long)mp->seq.min_in);
859     prompt_Printf(arg->prompt, " Output SEQ:    %u\n", mp->out.seq);
871     prompt_Printf(arg->prompt, " Input SEQ:     %u\n", mp->seq.next_in);
1200   if (mp->seq.min_in == dl->mp.seq)