/*
* fsm_rtermreq - Receive Terminate-Req.
*/
static void fsm_rtermreq(fsm *f, int id, u_char *p, int len) {
ppp_pcb *pcb = f->pcb;
switch (f->state) {
case PPP_FSM_ACKRCVD:
case PPP_FSM_ACKSENT:
f->state = PPP_FSM_REQSENT; /* Start over but keep trying */
break;
case PPP_FSM_OPENED:
if (len > 0) {
ppp_info("%s terminated by peer (%0.*v)", PROTO_NAME(f), len, p);
} else
ppp_info("%s terminated by peer", PROTO_NAME(f));
f->retransmits = 0;
f->state = PPP_FSM_STOPPING;
if (f->callbacks->down)
(*f->callbacks->down)(f); /* Inform upper layers */
TIMEOUT(fsm_timeout, f, pcb->settings.fsm_timeout_time);
break;
default:
break;
}
fsm_sdata(f, TERMACK, id, NULL, 0);
}
static void ppp_receive(const unsigned char *buf, gsize len, void *data)
{
GAtPPP *ppp = data;
guint16 protocol = ppp_proto(buf);
const guint8 *packet = ppp_info(buf);
if (ppp_drop_packet(ppp, protocol))
return;
switch (protocol) {
case PPP_IP_PROTO:
ppp_net_process_packet(ppp->net, packet);
break;
case LCP_PROTOCOL:
pppcp_process_packet(ppp->lcp, packet);
break;
case IPCP_PROTO:
pppcp_process_packet(ppp->ipcp, packet);
break;
case CHAP_PROTOCOL:
if (ppp->chap) {
ppp_chap_process_packet(ppp->chap, packet);
break;
}
/* fall through */
default:
pppcp_send_protocol_reject(ppp->lcp, buf, len);
break;
};
}
static void chap_handle_status(ppp_pcb *pcb, int code, int id,
unsigned char *pkt, int len) {
const char *msg = NULL;
LWIP_UNUSED_ARG(id);
if ((pcb->chap_client.flags & (AUTH_DONE|AUTH_STARTED|LOWERUP))
!= (AUTH_STARTED|LOWERUP))
return;
pcb->chap_client.flags |= AUTH_DONE;
if (code == CHAP_SUCCESS) {
/* used for MS-CHAP v2 mutual auth, yuck */
if (pcb->chap_client.digest->check_success != NULL) {
if (!(*pcb->chap_client.digest->check_success)(pcb, pkt, len, pcb->chap_client.priv))
code = CHAP_FAILURE;
} else
msg = "CHAP authentication succeeded";
} else {
if (pcb->chap_client.digest->handle_failure != NULL)
(*pcb->chap_client.digest->handle_failure)(pcb, pkt, len);
else
msg = "CHAP authentication failed";
}
if (msg) {
if (len > 0)
ppp_info("%s: %.*v", msg, len, pkt);
else
ppp_info("%s", msg);
}
if (code == CHAP_SUCCESS)
auth_withpeer_success(pcb, PPP_CHAP, pcb->chap_client.digest->code);
else {
pcb->chap_client.flags |= AUTH_FAILED;
ppp_error("CHAP authentication failed");
auth_withpeer_fail(pcb, PPP_CHAP);
}
}
