usr.sbin/ppp/cbcp.c

196 cbcp_Output(struct cbcp *cbcp, u_char code, struct cbcp_data *data)
201   bp = m_get(sizeof *head + data->length, MB_CBCPOUT);
205   head->length = htons(sizeof *head + data->length);
206   memcpy(MBUF_CTOP(bp) + sizeof *head, data, data->length);
233 cbcp_data_Show(struct cbcp_data *data)
238   addr = (struct cbcp_addr *)data->addr_start;
239   end = (char *)data + data->length;
242   log_Printf(LogCBCP, " TYPE %s\n", cbcp_data_Type(data->type));
243   if ((char *)&data->delay < end) {
244     log_Printf(LogCBCP, " DELAY %d\n", data->delay);
258   struct cbcp_data data;
267   data.type = cbcp->fsm.type;
268   data.delay = 0;
272   switch (data.type) {
274       addr = (struct cbcp_addr *)data.addr_start;
277       data.length = addr->addr - (char *)&data;
281       addr = (struct cbcp_addr *)data.addr_start;
284         max = data.addr_start + sizeof data.addr_start - addr->addr - 1;
294       data.length = (char *)addr - (char *)&data;
298       data.length = data.addr_start - (char *)&data;
302       data.length = (char *)&data.delay - (char *)&data;
306   cbcp_data_Show(&data);
307   cbcp_Output(cbcp, CBCP_REQ, &data);
353 cbcp_AdjustResponse(struct cbcp *cbcp, struct cbcp_data *data)
356    * We've received a REQ (data).  Adjust our response (cbcp->fsm.*)
361   switch (data->type) {
383         if (data->length > data->addr_start - (char *)data) {
388           addr = (struct cbcp_addr *)data->addr_start;
409       if (data->length > data->addr_start - (char *)data) {
416         addr = (struct cbcp_addr *)data->addr_start;
445          * Search through ``data''s addresses and see if cbcp->fsm.phone
450         addr = (struct cbcp_addr *)data->addr_start;
451         end = (char *)data + data->length;
473   log_Printf(LogCBCP, "Unrecognised REQ type %d !\n", (int)data->type);
480   struct cbcp_data data;
488   data.type = cbcp->fsm.type;
489   data.delay = cbcp->fsm.delay;
490   addr = (struct cbcp_addr *)data.addr_start;
491   if (data.type == CBCP_NONUM)
492     data.length = (char *)&data.delay - (char *)&data;
497     data.length = (addr->addr + strlen(addr->addr) + 1) - (char *)&data;
499     data.length = data.addr_start - (char *)&data;
501   cbcp_data_Show(&data);
502   cbcp_Output(cbcp, CBCP_RESPONSE, &data);
514 cbcp_CheckResponse(struct cbcp *cbcp, struct cbcp_data *data)
517    * We've received a RESPONSE (data).  Check if it agrees with
522   addr = (struct cbcp_addr *)data->addr_start;
524   if (data->type == cbcp->fsm.type) {
530         if ((char *)data + data->length <= addr->addr)
538           cbcp->fsm.delay = data->delay;
544         cbcp->fsm.delay = data->delay;
548         if ((char *)data + data->length <= addr->addr)
561               cbcp->fsm.delay = data->delay;
572   } else if (data->type == CBCP_NONUM && cbcp->fsm.type == CBCP_CLIENTNUM) {
587   struct cbcp_data data;
595   data.type = cbcp->fsm.type;
596   switch (data.type) {
598       data.length = (char *)&data.delay - (char *)&data;
601       addr = (struct cbcp_addr *)data.addr_start;
605       data.delay = cbcp->fsm.delay;
606       data.length = addr->addr + strlen(addr->addr) + 1 - (char *)&data;
609       data.delay = cbcp->fsm.delay;
610       data.length = data.addr_start - (char *)&data;
614   cbcp_data_Show(&data);
615   cbcp_Output(cbcp, CBCP_ACK, &data);
626   struct cbcp_data *data;
655   data = (struct cbcp_data *)MBUF_CTOP(bp);
661       cbcp_data_Show(data);
664         if (cbcp_AdjustResponse(cbcp, data)) {
677       cbcp_data_Show(data);
685         switch (cbcp_CheckResponse(cbcp, data)) {
714       cbcp_data_Show(data);