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PPP, PPPoE: use service name and concentrator name

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Make pppoe_create() actually store the passed service name and
concentrator name, so that they are passed in the PADI/PADR/PADS
packets.

Assume that the user application won't be freeing the strings and just
copy the string pointers, therefore remove the mem_free() in
pppoe_destroy().

Since only the pointers are copied now, make them 'const' in
pppoe_softc.

Signed-off-by: Sylvain Rochet <gradator@gradator.net>
This commit is contained in:
Jacob Kroon 2018-12-20 03:01:34 +01:00 committed by Sylvain Rochet
parent 48615984c7
commit c02fea0961
2 changed files with 8 additions and 11 deletions
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4
src/include/netif/ppp/pppoe.h
View File

@ -150,8 +150,8 @@ struct pppoe_softc {
u8_t sc_state; /* discovery phase or session connected */
#if PPPOE_SCNAME_SUPPORT
char *sc_service_name; /* if != NULL: requested name of service */
char *sc_concentrator_name; /* if != NULL: requested concentrator id */
const char *sc_service_name; /* if != NULL: requested name of service */
const char *sc_concentrator_name; /* if != NULL: requested concentrator id */
#endif /* PPPOE_SCNAME_SUPPORT */
u8_t sc_ac_cookie[PPPOE_MAX_AC_COOKIE_LEN]; /* content of AC cookie we must echo back */
u8_t sc_ac_cookie_len; /* length of cookie data */

15
src/netif/ppp/pppoe.c
View File

@ -175,8 +175,10 @@ ppp_pcb *pppoe_create(struct netif *pppif,
{
ppp_pcb *ppp;
struct pppoe_softc *sc;
#if !PPPOE_SCNAME_SUPPORT
LWIP_UNUSED_ARG(service_name);
LWIP_UNUSED_ARG(concentrator_name);
#endif /* !PPPOE_SCNAME_SUPPORT */
LWIP_ASSERT_CORE_LOCKED();
sc = (struct pppoe_softc *)LWIP_MEMPOOL_ALLOC(PPPOE_IF);
@ -193,6 +195,10 @@ ppp_pcb *pppoe_create(struct netif *pppif,
memset(sc, 0, sizeof(struct pppoe_softc));
sc->pcb = ppp;
sc->sc_ethif = ethif;
#if PPPOE_SCNAME_SUPPORT
sc->sc_service_name = service_name;
sc->sc_concentrator_name = concentrator_name;
#endif /* PPPOE_SCNAME_SUPPORT */
/* put the new interface at the head of the list */
sc->next = pppoe_softc_list;
pppoe_softc_list = sc;
@ -300,15 +306,6 @@ pppoe_destroy(ppp_pcb *ppp, void *ctx)
break;
}
}
#if PPPOE_SCNAME_SUPPORT
if (sc->sc_concentrator_name) {
mem_free(sc->sc_concentrator_name);
}
if (sc->sc_service_name) {
mem_free(sc->sc_service_name);
}
#endif /* PPPOE_SCNAME_SUPPORT */
LWIP_MEMPOOL_FREE(PPPOE_IF, sc);
return ERR_OK;