diff options
| -rw-r--r-- | client/client.c | 4 | ||||
| -rw-r--r-- | proto/ospf/config.Y | 10 | ||||
| -rw-r--r-- | proto/ospf/lsupd.c | 2 | ||||
| -rw-r--r-- | proto/ospf/ospf.c | 213 | ||||
| -rw-r--r-- | proto/ospf/topology.c | 42 | ||||
| -rw-r--r-- | sysdep/linux/netlink/netlink.c | 5 | ||||
| -rw-r--r-- | sysdep/unix/io.c | 4 |
7 files changed, 264 insertions, 16 deletions
diff --git a/client/client.c b/client/client.c index d65ea066..e3f539e1 100644 --- a/client/client.c +++ b/client/client.c @@ -252,6 +252,10 @@ server_connect(void) server_fd = socket(AF_UNIX, SOCK_STREAM, 0); if (server_fd < 0) die("Cannot create socket: %m"); + + if (strlen(server_path) >= sizeof(sa.sun_path)) + die("server_connect: path too long"); + bzero(&sa, sizeof(sa)); sa.sun_family = AF_UNIX; strcpy(sa.sun_path, server_path); diff --git a/proto/ospf/config.Y b/proto/ospf/config.Y index 0c6a4087..dfcab4e6 100644 --- a/proto/ospf/config.Y +++ b/proto/ospf/config.Y @@ -255,14 +255,20 @@ CF_ADDTO(dynamic_attr, OSPF_METRIC2 { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF CF_ADDTO(dynamic_attr, OSPF_TAG { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_OSPF_TAG); }) CF_CLI(SHOW OSPF, optsym, [<name>], [[Show information about OSPF protocol]]) -{ ospf_sh(proto_get_named($3, &proto_ospf)); } ; +{ ospf_sh(proto_get_named($3, &proto_ospf)); }; CF_CLI(SHOW OSPF NEIGHBORS, optsym opttext, [<name>] [\"<interface>\"], [[Show information about OSPF neighbors]]) -{ ospf_sh_neigh(proto_get_named($4, &proto_ospf), $5); } ; +{ ospf_sh_neigh(proto_get_named($4, &proto_ospf), $5); }; CF_CLI(SHOW OSPF INTERFACE, optsym opttext, [<name>] [\"<interface>\"], [[Show information about interface]]) { ospf_sh_iface(proto_get_named($4, &proto_ospf), $5); }; +CF_CLI(SHOW OSPF TOPOLOGY, optsym opttext, [<name>], [[Show information about OSPF network topology]]) +{ ospf_sh_state(proto_get_named($4, &proto_ospf), 0); }; + +CF_CLI(SHOW OSPF STATE, optsym opttext, [<name>], [[Show information about OSPF network state]]) +{ ospf_sh_state(proto_get_named($4, &proto_ospf), 1); }; + CF_CODE CF_END diff --git a/proto/ospf/lsupd.c b/proto/ospf/lsupd.c index d1881445..9f7dd638 100644 --- a/proto/ospf/lsupd.c +++ b/proto/ospf/lsupd.c @@ -183,7 +183,7 @@ ospf_lsupd_flood(struct ospf_neighbor *n, struct ospf_lsa_header *hn, op->length = htons(len); OSPF_TRACE(D_PACKETS, "LS upd flooded via %s", ifa->iface->name); - DBG("ID=%I, AGE=%d, SEQ=%x", ntohl(lh->id), ntohs(lh->age), + DBG("ID=%I, AGE=%d, SEQ=%x\n", ntohl(lh->id), ntohs(lh->age), ntohl(lh->sn)); switch (ifa->type) diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c index b382df07..1fce7091 100644 --- a/proto/ospf/ospf.c +++ b/proto/ospf/ospf.c @@ -73,6 +73,7 @@ * and conserves memory. */ +#include <stdlib.h> #include "ospf.h" static int ospf_rte_better(struct rte *new, struct rte *old); @@ -982,6 +983,218 @@ ospf_sh_iface(struct proto *p, char *iff) cli_msg(0, ""); } +/* First we want to separate network-LSAs and other LSAs (because network-LSAs + * will be presented as network nodes and other LSAs together as router nodes) + * Network-LSAs are sorted according to network prefix, other LSAs are sorted + * according to originating router id (to get all LSA needed to represent one + * router node together). Then, according to LSA type, ID and age. + */ +static int +he_compare(const void *p1, const void *p2) +{ + struct top_hash_entry * he1 = * (struct top_hash_entry **) p1; + struct top_hash_entry * he2 = * (struct top_hash_entry **) p2; + struct ospf_lsa_header *lsa1 = &(he1->lsa); + struct ospf_lsa_header *lsa2 = &(he2->lsa); + int nt1 = (lsa1->type == LSA_T_NET); + int nt2 = (lsa2->type == LSA_T_NET); + + if (he1->oa->areaid != he2->oa->areaid) + return he1->oa->areaid - he2->oa->areaid; + + if (nt1 != nt2) + return nt1 - nt2; + + if (nt1) + { + // we are cheating for now + if (lsa1->id != lsa2->id) + return lsa1->id - lsa2->id; + + return lsa1->age - lsa2->age; + } + else + { + if (lsa1->rt != lsa2->rt) + return lsa1->rt - lsa2->rt; + + if (lsa1->type != lsa2->type) + return lsa1->type - lsa2->type; + + if (lsa1->id != lsa2->id) + return lsa1->id - lsa2->id; + + return lsa1->age - lsa2->age; + } +} + +static inline void +show_lsa_router(struct top_hash_entry *he) +{ + struct ospf_lsa_header *lsa = &(he->lsa); + struct ospf_lsa_rt *rt = he->lsa_body; + struct ospf_lsa_rt_link *rr = (struct ospf_lsa_rt_link *) (rt + 1); + u32 i; + + for (i = 0; i < rt->links; i++) + if (rr[i].type == LSART_PTP) + cli_msg(-1016, "\t\trouter %I metric %u ", rr[i].id, rr[i].metric); + + for (i = 0; i < rt->links; i++) + if (rr[i].type == LSART_NET) + { + struct proto_ospf *po = he->oa->po; + struct top_hash_entry *net_he = ospf_hash_find(po->gr, he->oa->areaid, rr[i].id, rr[i].id, LSA_T_NET); + if (net_he) + { + struct ospf_lsa_header *net_lsa = &(net_he->lsa); + struct ospf_lsa_net *net_ln = net_he->lsa_body; + cli_msg(-1016, "\t\tnetwork %I/%d metric %u ", ipa_and(ipa_from_u32(net_lsa->id), net_ln->netmask), ipa_mklen(net_ln->netmask), rr[i].metric); + } + else + cli_msg(-1016, "\t\tnetwork ??? metric %u ", rr[i].id, ipa_mklen(rr[i].data), rr[i].metric); + } + + for (i = 0; i < rt->links; i++) + if (rr[i].type == LSART_STUB) + cli_msg(-1016, "\t\tstubnet %I/%d metric %u ", rr[i].id, ipa_mklen(rr[i].data), rr[i].metric); + + for (i = 0; i < rt->links; i++) + if (rr[i].type == LSART_VLNK) + cli_msg(-1016, "\t\tvlink %I metric %u ", rr[i].id, rr[i].metric); +} + +static inline void +show_lsa_network(struct top_hash_entry *he) +{ + struct ospf_lsa_header *lsa = &(he->lsa); + struct ospf_lsa_net *ln = he->lsa_body; + u32 *rts = (u32 *) (ln + 1); + u32 max = (lsa->length - sizeof(struct ospf_lsa_header) - sizeof(struct ospf_lsa_net)) / sizeof(u32); + u32 i; + + cli_msg(-1016, ""); + cli_msg(-1016, "\tnetwork %I/%d", ipa_and(ipa_from_u32(lsa->id), ln->netmask), ipa_mklen(ln->netmask)); + cli_msg(-1016, "\t\tdr %I", lsa->rt); + + for (i = 0; i < max; i++) + cli_msg(-1016, "\t\trouter %I", rts[i]); +} + +static inline void +show_lsa_sum_net(struct top_hash_entry *he) +{ + struct ospf_lsa_header *lsa = &(he->lsa); + struct ospf_lsa_sum *sm = he->lsa_body; + + cli_msg(-1016, "\t\txnetwork %I/%d", ipa_and(ipa_from_u32(lsa->id), sm->netmask), ipa_mklen(sm->netmask)); +} + +static inline void +show_lsa_sum_rt(struct top_hash_entry *he) +{ + cli_msg(-1016, "\t\txrouter %I", he->lsa.id); +} + + +static inline void +show_lsa_external(struct top_hash_entry *he) +{ + struct ospf_lsa_header *lsa = &(he->lsa); + struct ospf_lsa_ext *ext = he->lsa_body; + struct ospf_lsa_ext_tos *et = (struct ospf_lsa_ext_tos *) (ext + 1); + + char str_via[STD_ADDRESS_P_LENGTH + 8] = ""; + char str_tag[16] = ""; + + if (et->fwaddr) + bsprintf(str_via, " via %I", et->fwaddr); + + if (et->tag) + bsprintf(str_tag, " tag %08x", et->tag); + + cli_msg(-1016, "\t\texternal %I/%d metric%s %u%s%s", + ipa_and(ipa_from_u32(lsa->id), ext->netmask), + ipa_mklen(ext->netmask), et->etm.etos.ebit ? "2" : "", + et->etm.metric & METRIC_MASK, str_via, str_tag); +} + + +void +ospf_sh_state(struct proto *p, int verbose) +{ + struct proto_ospf *po = (struct proto_ospf *) p; + struct top_graph *f = po->gr; + unsigned int i, j; + u32 last_rt = 0xFFFFFFFF; + u32 last_area = 0xFFFFFFFF; + + if (p->proto_state != PS_UP) + { + cli_msg(-1016, "%s: is not up", p->name); + cli_msg(0, ""); + return; + } + + struct top_hash_entry *hea[f->hash_entries]; + struct top_hash_entry *he; + + j = 0; + for (i = 0; i < f->hash_size; i++) + for (he = f->hash_table[i]; he != NULL; he = he->next) + hea[j++] = he; + + if (j == f->hash_size) + die("Fatal mismatch"); + + qsort(hea, j, sizeof(struct top_hash_entry *), he_compare); + + for (i = 0; i < j; i++) + { + if ((verbose == 0) && (hea[i]->lsa.type > LSA_T_NET)) + continue; + + if (last_area != hea[i]->oa->areaid) + { + cli_msg(-1016, ""); + cli_msg(-1016, "area %I", hea[i]->oa->areaid); + last_area = hea[i]->oa->areaid; + last_rt = 0xFFFFFFFF; + } + + if ((hea[i]->lsa.rt != last_rt) && (hea[i]->lsa.type != LSA_T_NET)) + { + cli_msg(-1016, ""); + cli_msg(-1016, (hea[i]->lsa.type != LSA_T_EXT) ? "\trouter %I" : "\txrouter %I", hea[i]->lsa.rt); + last_rt = hea[i]->lsa.rt; + } + + switch (hea[i]->lsa.type) + { + case LSA_T_RT: + show_lsa_router(hea[i]); + break; + + case LSA_T_NET: + show_lsa_network(hea[i]); + break; + + case LSA_T_SUM_NET: + show_lsa_sum_net(hea[i]); + break; + + case LSA_T_SUM_RT: + show_lsa_sum_rt(hea[i]); + break; + case LSA_T_EXT: + show_lsa_external(hea[i]); + break; + } + } + + cli_msg(0, ""); +} + struct protocol proto_ospf = { name:"OSPF", template:"ospf%d", diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c index 419a3951..1d6b06ef 100644 --- a/proto/ospf/topology.c +++ b/proto/ospf/topology.c @@ -20,6 +20,8 @@ #define HASH_LO_STEP 2 #define HASH_LO_MIN 8 +int ptp_unnumbered_stub_lsa = 0; + static void * originate_rt_lsa_body(struct ospf_area *oa, u16 * length) { @@ -28,7 +30,7 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 * length) int j = 0, k = 0; u16 i = 0; struct ospf_lsa_rt *rt; - struct ospf_lsa_rt_link *ln; + struct ospf_lsa_rt_link *ln, *ln_after; struct ospf_neighbor *neigh; DBG("%s: Originating RT_lsa body for area \"%I\".\n", po->proto.name, @@ -39,6 +41,9 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 * length) if ((ifa->oa == oa) && (ifa->state != OSPF_IS_DOWN)) { i++; + if ((ifa->type == OSPF_IT_PTP) && (ifa->state == OSPF_IS_PTP) && + (ptp_unnumbered_stub_lsa || !(ifa->iface->addr->flags & IA_UNNUMBERED))) + i++; } } rt = mb_allocz(po->proto.pool, sizeof(struct ospf_lsa_rt) + @@ -48,6 +53,7 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 * length) if ((po->ebit) && (!oa->stub)) rt->veb.bit.e = 1; ln = (struct ospf_lsa_rt_link *) (rt + 1); + ln_after = ln + i; WALK_LIST(ifa, po->iface_list) { @@ -61,6 +67,9 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 * length) if ((ifa->oa != oa) || (ifa->state == OSPF_IS_DOWN)) continue; + if (ln == ln_after) + die("LSA space overflow"); + if (ifa->state == OSPF_IS_LOOP) { ln->type = 3; @@ -81,7 +90,7 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 * length) ln->id = neigh->rid; ln->metric = ifa->cost; ln->notos = 0; - if (ifa->iface->flags && IA_UNNUMBERED) + if (ifa->iface->addr->flags & IA_UNNUMBERED) { ln->data = ifa->iface->index; } @@ -92,19 +101,30 @@ originate_rt_lsa_body(struct ospf_area *oa, u16 * length) } else { - if (ifa->state == OSPF_IS_PTP) + ln--; + i--; /* No link added */ + } + + if ((ifa->state == OSPF_IS_PTP) && + (ptp_unnumbered_stub_lsa || !(ifa->iface->addr->flags & IA_UNNUMBERED))) + { + ln++; + if (ln == ln_after) + die("LSA space overflow"); + + ln->type = LSART_STUB; + ln->metric = ifa->cost; + ln->notos = 0; + if (ifa->iface->addr->flags & IA_UNNUMBERED) { - ln->type = LSART_STUB; - ln->id = ln->id = ipa_to_u32(ifa->iface->addr->opposite); - ln->metric = ifa->cost; - ln->notos = 0; + ln->id = ipa_to_u32(ifa->iface->addr->opposite); ln->data = 0xffffffff; } else - { - ln--; - i--; /* No link added */ - } + { + ln->data = ipa_to_u32(ipa_mkmask(ifa->iface->addr->pxlen)); + ln->id = ipa_to_u32(ifa->iface->addr->prefix) & ln->data; + } } break; case OSPF_IT_BCAST: diff --git a/sysdep/linux/netlink/netlink.c b/sysdep/linux/netlink/netlink.c index 98c63f02..38d00afe 100644 --- a/sysdep/linux/netlink/netlink.c +++ b/sysdep/linux/netlink/netlink.c @@ -268,7 +268,8 @@ nl_parse_link(struct nlmsghdr *h, int scan) if (!a[IFLA_IFNAME] || RTA_PAYLOAD(a[IFLA_IFNAME]) < 2 || !a[IFLA_MTU] || RTA_PAYLOAD(a[IFLA_MTU]) != 4) { - log(L_ERR "nl_parse_link: Malformed message received"); + if (scan) + log(L_ERR "nl_parse_link: Malformed message received"); return; } name = RTA_DATA(a[IFLA_IFNAME]); @@ -384,7 +385,7 @@ nl_parse_addr(struct nlmsghdr *h) ipa_ntoh(xbrd); if (ipa_equal(xbrd, ifa.prefix) || ipa_equal(xbrd, ifa.brd)) ifa.brd = xbrd; - else + else if (ifi->flags & IF_TMP_DOWN) /* Complain only during the first scan */ log(L_ERR "KIF: Invalid broadcast address %I for %s", xbrd, ifi->name); } #endif diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c index 6faa176b..8cec2cdd 100644 --- a/sysdep/unix/io.c +++ b/sysdep/unix/io.c @@ -940,6 +940,10 @@ sk_open_unix(sock *s, char *name) if (err = sk_setup(s)) goto bad; unlink(name); + + if (strlen(name) >= sizeof(sa.sun_path)) + die("sk_open_unix: path too long"); + sa.sun_family = AF_UNIX; strcpy(sa.sun_path, name); if (bind(fd, (struct sockaddr *) &sa, SUN_LEN(&sa)) < 0) |