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When trying to (re-)establish a session cope with intermediate output

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failures of the underlying ethernet interface - just keep trying.
This commit is contained in:
martin 2003-08-23 16:42:41 +00:00
parent c3181b5741
commit f5a54fd742
1 changed files with 46 additions and 41 deletions
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87
sys/net/if_pppoe.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_pppoe.c,v 1.44 2003/06/27 16:24:32 oki Exp $ */
/* $NetBSD: if_pppoe.c,v 1.45 2003/08/23 16:42:41 martin Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_pppoe.c,v 1.44 2003/06/27 16:24:32 oki Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_pppoe.c,v 1.45 2003/08/23 16:42:41 martin Exp $");
#include "pppoe.h"
#include "bpfilter.h"
@ -409,7 +409,7 @@ static void pppoe_dispatch_disc_pkt(struct mbuf *m, int off)
struct pppoehdr *ph;
struct pppoetag *pt;
struct mbuf *n;
int noff;
int noff, err;
struct ether_header *eh;
if (m->m_len < sizeof(*eh)) {
@ -632,12 +632,15 @@ breakbreak:;
callout_stop(&sc->sc_timeout);
sc->sc_padr_retried = 0;
sc->sc_state = PPPOE_STATE_PADR_SENT;
if (pppoe_send_padr(sc) == 0)
callout_reset(&sc->sc_timeout,
PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried),
pppoe_timeout, sc);
else
pppoe_abort_connect(sc);
if ((err = pppoe_send_padr(sc)) != 0) {
if (sc->sc_sppp.pp_if.if_flags & IFF_DEBUG)
printf("%s: failed to send PADR, "
"error=%d\n", sc->sc_sppp.pp_if.if_xname,
err);
}
callout_reset(&sc->sc_timeout,
PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried),
pppoe_timeout, sc);
break;
case PPPOE_CODE_PADS:
if (sc == NULL)
@ -992,7 +995,7 @@ pppoe_send_padi(struct pppoe_softc *sc)
static void
pppoe_timeout(void *arg)
{
int x, retry_wait;
int x, retry_wait, err;
struct pppoe_softc *sc = (struct pppoe_softc*)arg;
#ifdef PPPOE_DEBUG
@ -1026,11 +1029,15 @@ pppoe_timeout(void *arg)
return;
}
}
if (pppoe_send_padi(sc) == 0)
callout_reset(&sc->sc_timeout, retry_wait,
pppoe_timeout, sc);
else
pppoe_abort_connect(sc);
if ((err = pppoe_send_padi(sc)) != 0) {
sc->sc_padi_retried--;
if (sc->sc_sppp.pp_if.if_flags & IFF_DEBUG)
printf("%s: failed to transmit PADI, "
"error=%d\n",
sc->sc_sppp.pp_if.if_xname, err);
}
callout_reset(&sc->sc_timeout, retry_wait,
pppoe_timeout, sc);
splx(x);
break;
@ -1042,21 +1049,29 @@ pppoe_timeout(void *arg)
sizeof(sc->sc_dest));
sc->sc_state = PPPOE_STATE_PADI_SENT;
sc->sc_padr_retried = 0;
if (pppoe_send_padi(sc) == 0)
callout_reset(&sc->sc_timeout,
PPPOE_DISC_TIMEOUT * (1 + sc->sc_padi_retried),
pppoe_timeout, sc);
else
pppoe_abort_connect(sc);
if ((err = pppoe_send_padi(sc)) != 0) {
if (sc->sc_sppp.pp_if.if_flags & IFF_DEBUG)
printf("%s: failed to send PADI"
", error=%d\n",
sc->sc_sppp.pp_if.if_xname,
err);
}
callout_reset(&sc->sc_timeout,
PPPOE_DISC_TIMEOUT * (1 + sc->sc_padi_retried),
pppoe_timeout, sc);
splx(x);
return;
}
if (pppoe_send_padr(sc) == 0)
callout_reset(&sc->sc_timeout,
PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried),
pppoe_timeout, sc);
else
pppoe_abort_connect(sc);
if ((err = pppoe_send_padr(sc)) != 0) {
sc->sc_padr_retried--;
if (sc->sc_sppp.pp_if.if_flags & IFF_DEBUG)
printf("%s: failed to send PADR, "
"error=%d\n", sc->sc_sppp.pp_if.if_xname,
err);
}
callout_reset(&sc->sc_timeout,
PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried),
pppoe_timeout, sc);
splx(x);
break;
case PPPOE_STATE_CLOSING:
@ -1087,20 +1102,10 @@ pppoe_connect(struct pppoe_softc *sc)
sc->sc_state = PPPOE_STATE_PADI_SENT;
sc->sc_padr_retried = 0;
err = pppoe_send_padi(sc);
if (err != 0) {
/*
* We failed to send a single PADI packet.
* This is unfortunate, because we have no good way to recover
* from here.
*/
/* recover state and return the error */
sc->sc_state = PPPOE_STATE_INITIAL;
sc->sc_padr_retried = retry;
} else {
callout_reset(&sc->sc_timeout, PPPOE_DISC_TIMEOUT,
pppoe_timeout, sc);
}
if (err != 0 && sc->sc_sppp.pp_if.if_flags & IFF_DEBUG)
printf("%s: failed to send PADI, error=%d\n",
sc->sc_sppp.pp_if.if_xname, err);
callout_reset(&sc->sc_timeout, PPPOE_DISC_TIMEOUT, pppoe_timeout, sc);
splx(x);
return err;
}