/*
* upap_rauthack - Receive Authenticate-Ack.
*/
static void
upap_rauthack(upap_state *u, u_char *inp, int id, int len)
{
u_char msglen;
char *msg;
LWIP_UNUSED_ARG(id);
UPAPDEBUG((LOG_INFO, "pap_rauthack: Rcvd id %d s=%d\n", id, u->us_clientstate));
if (u->us_clientstate != UPAPCS_AUTHREQ) { /* XXX */
return;
}
/*
* Parse message.
*/
if (len < sizeof (u_char)) {
UPAPDEBUG((LOG_INFO, "pap_rauthack: rcvd short packet.\n"));
return;
}
GETCHAR(msglen, inp);
len -= sizeof (u_char);
if (len < msglen) {
UPAPDEBUG((LOG_INFO, "pap_rauthack: rcvd short packet.\n"));
return;
}
msg = (char *) inp;
PRINTMSG(msg, msglen);
UNTIMEOUT(upap_timeout, u); /* Cancel timeout */
u->us_clientstate = UPAPCS_OPEN;
auth_withpeer_success(u->us_unit, PPP_PAP);
}
/*
* upap_rauthack - Receive Authenticate-Ack.
*/
static void upap_rauthack(ppp_pcb *pcb, u_char *inp, int id, int len) {
u_char msglen;
char *msg;
LWIP_UNUSED_ARG(id);
if (pcb->upap.us_clientstate != UPAPCS_AUTHREQ) /* XXX */
return;
/*
* Parse message.
*/
if (len < 1) {
UPAPDEBUG(("pap_rauthack: ignoring missing msg-length."));
} else {
GETCHAR(msglen, inp);
if (msglen > 0) {
len -= sizeof (u_char);
if (len < msglen) {
UPAPDEBUG(("pap_rauthack: rcvd short packet."));
return;
}
msg = (char *) inp;
PRINTMSG(msg, msglen);
}
}
pcb->upap.us_clientstate = UPAPCS_OPEN;
auth_withpeer_success(pcb, PPP_PAP, 0);
}
/*
* ChapReceiveSuccess - Receive Success
*/
static void
ChapReceiveSuccess(
chap_state *cstate,
u_char *inp,
u_char id,
int len)
{
if (cstate->clientstate == CHAPCS_OPEN)
/* presumably an answer to a duplicate response */
return;
if (cstate->clientstate != CHAPCS_RESPONSE) {
/* don't know what this is */
CHAPDEBUG(("ChapReceiveSuccess: in state %d\n", cstate->clientstate));
return;
}
UNTIMEOUT(ChapResponseTimeout, cstate);
/*
* Print message.
*/
if (len > 0)
PRINTMSG(inp, len);
cstate->clientstate = CHAPCS_OPEN;
auth_withpeer_success(cstate->unit, PPP_CHAP);
}
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);
}
}
