diff options
Diffstat (limited to 'sys/net/if_pppoe.c')
| -rw-r--r-- | sys/net/if_pppoe.c | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/sys/net/if_pppoe.c b/sys/net/if_pppoe.c index 8d18f98e8bb..18f213d3581 100644 --- a/sys/net/if_pppoe.c +++ b/sys/net/if_pppoe.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_pppoe.c,v 1.14 2008/02/20 09:37:52 brad Exp $ */ +/* $OpenBSD: if_pppoe.c,v 1.15 2008/03/12 17:27:03 canacar Exp $ */ /* $NetBSD: if_pppoe.c,v 1.51 2003/11/28 08:56:48 keihan Exp $ */ /* @@ -144,6 +144,8 @@ struct pppoe_softc { char *sc_concentrator_name; /* if != NULL: requested concentrator id */ u_int8_t *sc_ac_cookie; /* content of AC cookie we must echo back */ size_t sc_ac_cookie_len; /* length of cookie data */ + u_int8_t *sc_relay_sid; /* content of relay SID we must echo back */ + size_t sc_relay_sid_len; /* length of relay SID data */ #ifdef PPPOE_SERVER u_int8_t *sc_hunique; /* content of host unique we must echo back */ size_t sc_hunique_len; /* length of host unique */ @@ -290,6 +292,8 @@ pppoe_clone_destroy(struct ifnet *ifp) free(sc->sc_service_name, M_DEVBUF); if (sc->sc_ac_cookie) free(sc->sc_ac_cookie, M_DEVBUF); + if (sc->sc_relay_sid) + free(sc->sc_relay_sid, M_DEVBUF); free(sc, M_DEVBUF); @@ -395,10 +399,12 @@ static void pppoe_dispatch_disc_pkt(struct mbuf *m, int off) struct ether_header *eh; const char *err_msg, *devname; size_t ac_cookie_len; + size_t relay_sid_len; int noff, err, errortag; u_int16_t tag, len; u_int16_t session, plen; u_int8_t *ac_cookie; + u_int8_t *relay_sid; #ifdef PPPOE_SERVER u_int8_t *hunique; size_t hunique_len; @@ -418,6 +424,8 @@ static void pppoe_dispatch_disc_pkt(struct mbuf *m, int off) ac_cookie = NULL; ac_cookie_len = 0; + relay_sid = NULL; + relay_sid_len = 0; #ifdef PPPOE_SERVER hunique = NULL; hunique_len = 0; @@ -510,6 +518,19 @@ static void pppoe_dispatch_disc_pkt(struct mbuf *m, int off) ac_cookie_len = len; } break; + case PPPOE_TAG_RELAYSID: + if (relay_sid == NULL) { + n = m_pulldown(m, off + sizeof(*pt), len, + &noff); + if (n == NULL) { + err_msg = "TAG RELAYSID ERROR"; + m = NULL; + break; + } + relay_sid = mtod(n, caddr_t) + noff; + relay_sid_len = len; + } + break; case PPPOE_TAG_SNAME_ERR: err_msg = "SERVICE NAME ERROR"; errortag = 1; @@ -648,6 +669,16 @@ breakbreak: sc->sc_ac_cookie_len = ac_cookie_len; memcpy(sc->sc_ac_cookie, ac_cookie, ac_cookie_len); } + if (relay_sid) { + if (sc->sc_relay_sid) + free(sc->sc_relay_sid, M_DEVBUF); + sc->sc_relay_sid = malloc(relay_sid_len, M_DEVBUF, + M_DONTWAIT); + if (sc->sc_relay_sid == NULL) + goto done; + sc->sc_relay_sid_len = relay_sid_len; + memcpy(sc->sc_relay_sid, relay_sid, relay_sid_len); + } memcpy(&sc->sc_dest, eh->ether_shost, sizeof(sc->sc_dest)); timeout_del(&sc->sc_timeout); @@ -690,7 +721,12 @@ breakbreak: free(sc->sc_ac_cookie, M_DEVBUF); sc->sc_ac_cookie = NULL; } + if (sc->sc_relay_sid) { + free(sc->sc_relay_sid, M_DEVBUF); + sc->sc_relay_sid = NULL; + } sc->sc_ac_cookie_len = 0; + sc->sc_relay_sid_len = 0; sc->sc_session = 0; sc->sc_session_time.tv_sec = 0; sc->sc_session_time.tv_usec = 0; @@ -1190,6 +1226,11 @@ pppoe_disconnect(struct pppoe_softc *sc) sc->sc_ac_cookie = NULL; } sc->sc_ac_cookie_len = 0; + if (sc->sc_relay_sid) { + free(sc->sc_relay_sid, M_DEVBUF); + sc->sc_relay_sid = NULL; + } + sc->sc_relay_sid_len = 0; #ifdef PPPOE_SERVER if (sc->sc_hunique) { free(sc->sc_hunique, M_DEVBUF); @@ -1241,6 +1282,8 @@ pppoe_send_padr(struct pppoe_softc *sc) } if (sc->sc_ac_cookie_len > 0) len += 2 + 2 + sc->sc_ac_cookie_len; /* AC cookie */ + if (sc->sc_relay_sid_len > 0) + len += 2 + 2 + sc->sc_relay_sid_len; /* Relay SID */ m0 = pppoe_get_mbuf(len + PPPOE_HEADERLEN); if (m0 == NULL) @@ -1263,6 +1306,12 @@ pppoe_send_padr(struct pppoe_softc *sc) memcpy(p, sc->sc_ac_cookie, sc->sc_ac_cookie_len); p += sc->sc_ac_cookie_len; } + if (sc->sc_relay_sid_len > 0) { + PPPOE_ADD_16(p, PPPOE_TAG_RELAYSID); + PPPOE_ADD_16(p, sc->sc_relay_sid_len); + memcpy(p, sc->sc_relay_sid, sc->sc_relay_sid_len); + p += sc->sc_relay_sid_len; + } PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE); PPPOE_ADD_16(p, sizeof(sc->sc_unique)); memcpy(p, &sc->sc_unique, sizeof(sc->sc_unique)); |