usr.sbin/ppp/ccp.c

147 static const struct ccp_algorithm * const algorithm[] = {
156 #define NALGORITHMS (sizeof algorithm/sizeof algorithm[0])
179   if (ccp->in.algorithm != -1)
181                   (*algorithm[ccp->in.algorithm]->Disp)(&ccp->in.opt));
183   if (ccp->out.algorithm != -1) {
185     for (f = 0; f < ccp->out.algorithm; f++)
186       if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]))
189                   (*algorithm[ccp->out.algorithm]->Disp)(&(*o)->val));
277   ccp->in.algorithm = ccp->out.algorithm = -1;
303     if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]) &&
304         (*algorithm[f]->Required)(&ccp->fsm))
317   if (ccp->fsm.state == ST_OPENED && ccp->out.algorithm >= 0)
318     return algorithm[ccp->out.algorithm]->o.MTUOverhead;
357   ccp->out.algorithm = -1;
359     if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]) &&
360         !REJECTED(ccp, algorithm[f]->id) &&
361         (*algorithm[f]->Usable)(fp)) {
365           if ((*o)->val.hdr.id == algorithm[f]->id && (*o)->algorithm == (int)f)
374         (*o)->val.hdr.id = algorithm[f]->id;
377         (*o)->algorithm = f;
378         (*algorithm[f]->o.OptInit)(fp->bundle, &(*o)->val, &ccp->cfg);
389       ccp->out.algorithm = f;
429   return (*algorithm[ccp->out.algorithm]->o.Reset)(ccp->out.state);
451     (*algorithm[ccp->in.algorithm]->i.Term)(ccp->in.state);
453     ccp->in.algorithm = -1;
456     (*algorithm[ccp->out.algorithm]->o.Term)(ccp->out.state);
458     ccp->out.algorithm = -1;
506     if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]) &&
507         (*algorithm[f]->Required)(&ccp->fsm) &&
508         (ccp->in.algorithm != (int)f || ccp->out.algorithm != (int)f)) {
509       /* Blow it all away - we haven't negotiated a required algorithm */
511                  fp->link->name, protoname(algorithm[f]->id));
524   if (ccp->in.state == NULL && ccp->in.algorithm >= 0 &&
525       ccp->in.algorithm < (int)NALGORITHMS) {
526     ccp->in.state = (*algorithm[ccp->in.algorithm]->i.Init)
538   if (ccp->out.algorithm > 0)
539     for (f = 0; f < (unsigned)ccp->out.algorithm; f++)
540       if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]))
543   if (ccp->out.state == NULL && ccp->out.algorithm >= 0 &&
544       ccp->out.algorithm < (int)NALGORITHMS) {
545     ccp->out.state = (*algorithm[ccp->out.algorithm]->o.Init)
576     ccp->in.algorithm = -1;	/* In case we've received two REQs in a row */
583       if (algorithm[f]->id == opt->hdr.id)
586     disp = f == -1 ? "" : (*algorithm[f]->Disp)(opt);
604         if (IsAccepted(ccp->cfg.neg[algorithm[f]->Neg]) &&
605             (*algorithm[f]->Usable)(fp) &&
606             ccp->in.algorithm == -1) {
608           switch ((*algorithm[f]->i.Set)(fp->bundle, &ccp->in.opt, &ccp->cfg)) {
618             ccp->in.algorithm = (int)f;		/* This one'll do :-) */
634           if ((*algorithm[f]->o.Set)(fp->bundle, &o->val, &ccp->cfg) ==
636             ccp->my_proto = algorithm[f]->id;
640             if (algorithm[f]->Required(fp)) {
643                          protoname(algorithm[f]->id));
652         if (algorithm[f]->Required(fp)) {
654                      fp->link->name, protoname(algorithm[f]->id));
667         ccp->in.algorithm = -1;
714     (*algorithm[ccp->in.algorithm]->i.Reset)(ccp->in.state);
731       bp = (*algorithm[l->ccp.out.algorithm]->o.Write)
763         bp = (*algorithm[l->ccp.in.algorithm]->i.Read)
779       (*algorithm[l->ccp.in.algorithm]->i.DictSetup)