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added PPPoE persist support (don't timeout sending PADI packets)

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This commit is contained in:
Sylvain Rochet 2012-06-07 01:48:12 +02:00
parent 7ef99ee6f3
commit a9ac45c5f0
3 changed files with 20 additions and 13 deletions
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15
src/include/netif/ppp_oe.h
View File

@ -67,12 +67,13 @@
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "lwip/opt.h"
#if PPP_SUPPORT && PPPOE_SUPPORT /* don't build if not configured for use in lwipopts.h */
#ifndef PPP_OE_H
#define PPP_OE_H
#include "lwip/opt.h"
#if PPPOE_SUPPORT > 0
#include "ppp_impl.h"
#include "netif/etharp.h"
@ -163,6 +164,8 @@ struct pppoe_softc {
#endif
int sc_padi_retried; /* number of PADI retries already done */
int sc_padr_retried; /* number of PADR retries already done */
u_int persist : 1; /* Persist mode, don't timeout sending PADI packets */
};
@ -171,7 +174,7 @@ struct pppoe_softc {
err_t pppoe_create(struct netif *ethif, int pd, void (*link_status_cb)(int pd, int up), struct pppoe_softc **scptr);
err_t pppoe_destroy(struct netif *ifp);
int pppoe_connect(struct pppoe_softc *sc);
int pppoe_connect(struct pppoe_softc *sc, bool persist);
void pppoe_disconnect(struct pppoe_softc *sc);
void pppoe_disc_input(struct netif *netif, struct pbuf *p);
@ -182,6 +185,6 @@ err_t pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb);
/** used in ppp.c */
#define PPPOE_HDRLEN (sizeof(struct eth_hdr) + PPPOE_HEADERLEN)
#endif /* PPPOE_SUPPORT */
#endif /* PPP_OE_H */
#endif /* PPP_SUPPORT && PPPOE_SUPPORT */

4
src/netif/ppp/ppp.c
View File

@ -625,7 +625,7 @@ int ppp_over_ethernet_open(struct netif *ethif, const char *service_name, const
return PPPERR_OPEN;
}
pppoe_connect(pc->pppoe_sc);
pppoe_connect(pc->pppoe_sc, ppp_settings.persist);
}
return pd;
@ -1866,7 +1866,7 @@ static void ppp_over_ethernet_link_status_cb(int pd, int state) {
if(ppp_settings.persist) {
if(pc->link_status_cb)
pc->link_status_cb(pc->link_status_ctx, pc->err_code ? pc->err_code : pppoe_err_code, NULL);
pppoe_connect(pc->pppoe_sc);
pppoe_connect(pc->pppoe_sc, ppp_settings.persist);
return;
}

14
src/netif/ppp/ppp_oe.c
View File

@ -748,10 +748,14 @@ pppoe_timeout(void *arg)
*/
/* initialize for quick retry mode */
retry_wait = PPPOE_DISC_TIMEOUT * (1 + sc->sc_padi_retried);
retry_wait = LWIP_MIN(PPPOE_DISC_TIMEOUT * (1 + sc->sc_padi_retried), PPPOE_SLOW_RETRY);
sc->sc_padi_retried++;
if (sc->sc_padi_retried >= PPPOE_DISC_MAXPADI) {
/* prevent sc_padi_retried integer overflow << ~2^31/PPPOE_DISC_TIMEOUT
* FIXME: can be improved
*/
if(sc->sc_padi_retried < 100000)
sc->sc_padi_retried++;
if (!sc->persist && sc->sc_padi_retried >= PPPOE_DISC_MAXPADI) {
#if 0
if ((sc->sc_sppp.pp_if.if_flags & IFF_LINK1) == 0) {
/* slow retry mode */
@ -798,7 +802,7 @@ pppoe_timeout(void *arg)
/* Start a connection (i.e. initiate discovery phase) */
int
pppoe_connect(struct pppoe_softc *sc)
pppoe_connect(struct pppoe_softc *sc, bool persist)
{
int err;
@ -811,7 +815,7 @@ pppoe_connect(struct pppoe_softc *sc)
sc->sc_session = 0;
sc->sc_padi_retried = 0;
sc->sc_padr_retried = 0;
sc->persist = persist;
#ifdef PPPOE_SERVER
/* wait PADI if IFF_PASSIVE */
if ((sc->sc_sppp.pp_if.if_flags & IFF_PASSIVE)) {