diff options
Diffstat (limited to 'accel-pppd/ppp/ppp_lcp.c')
| -rw-r--r-- | accel-pppd/ppp/ppp_lcp.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/accel-pppd/ppp/ppp_lcp.c b/accel-pppd/ppp/ppp_lcp.c index 279d815..56a3ca6 100644 --- a/accel-pppd/ppp/ppp_lcp.c +++ b/accel-pppd/ppp/ppp_lcp.c @@ -704,25 +704,29 @@ static void lcp_recv(struct ppp_handler_t*h) int r; char *term_msg; - if (lcp->fsm.fsm_state == FSM_Initial || lcp->fsm.fsm_state == FSM_Closed || lcp->ppp->terminating) { - /*if (conf_ppp_verbose) - log_ppp_warn("LCP: discaring packet\n"); - lcp_send_proto_rej(ccp->ppp, htons(PPP_CCP));*/ - return; - } - if (lcp->ppp->buf_size < PPP_HEADERLEN + 2) { log_ppp_warn("LCP: short packet received\n"); return; } - hdr = (struct lcp_hdr_t *)lcp->ppp->buf; + hdr = (struct lcp_hdr_t *)lcp->ppp->buf; if (ntohs(hdr->len) < PPP_HEADERLEN) { log_ppp_warn("LCP: short packet received\n"); return; } + if ((hdr->code == CONFACK || hdr->code == CONFNAK || hdr->code == CONFREJ) && hdr->id != lcp->fsm.id) + return; + + if (lcp->fsm.fsm_state == FSM_Initial || lcp->fsm.fsm_state == FSM_Closed || (lcp->ppp->terminating && (hdr->code != TERMACK && hdr->code != TERMREQ))) { + /*if (conf_ppp_verbose) + log_ppp_warn("LCP: discaring packet\n"); + lcp_send_proto_rej(ccp->ppp, htons(PPP_CCP));*/ + return; + } + lcp->fsm.recv_id = hdr->id; + switch(hdr->code) { case CONFREQ: r = lcp_recv_conf_req(lcp, (uint8_t*)(hdr + 1), ntohs(hdr->len) - PPP_HDRLEN); |