diff options
Diffstat (limited to 'pimd/pim_zlookup.c')
| -rw-r--r-- | pimd/pim_zlookup.c | 883 |
1 files changed, 448 insertions, 435 deletions
diff --git a/pimd/pim_zlookup.c b/pimd/pim_zlookup.c index f405a39c9d..027b18e123 100644 --- a/pimd/pim_zlookup.c +++ b/pimd/pim_zlookup.c @@ -43,491 +43,504 @@ static void zclient_lookup_sched(struct zclient *zlookup, int delay); /* Connect to zebra for nexthop lookup. */ static int zclient_lookup_connect(struct thread *t) { - struct zclient *zlookup; - - zlookup = THREAD_ARG(t); - - if (zlookup->sock >= 0) { - return 0; - } - - if (zclient_socket_connect(zlookup) < 0) { - ++zlookup->fail; - zlog_warn("%s: failure connecting zclient socket: failures=%d", - __PRETTY_FUNCTION__, zlookup->fail); - } - else { - zlookup->fail = 0; /* reset counter on connection */ - } - - if (zlookup->sock < 0) { - /* Since last connect failed, retry within 10 secs */ - zclient_lookup_sched(zlookup, 10); - return -1; - } - - return 0; + struct zclient *zlookup; + + zlookup = THREAD_ARG(t); + + if (zlookup->sock >= 0) { + return 0; + } + + if (zclient_socket_connect(zlookup) < 0) { + ++zlookup->fail; + zlog_warn("%s: failure connecting zclient socket: failures=%d", + __PRETTY_FUNCTION__, zlookup->fail); + } else { + zlookup->fail = 0; /* reset counter on connection */ + } + + if (zlookup->sock < 0) { + /* Since last connect failed, retry within 10 secs */ + zclient_lookup_sched(zlookup, 10); + return -1; + } + + return 0; } /* Schedule connection with delay. */ static void zclient_lookup_sched(struct zclient *zlookup, int delay) { - thread_add_timer(master, zclient_lookup_connect, zlookup, delay, - &zlookup->t_connect); + thread_add_timer(master, zclient_lookup_connect, zlookup, delay, + &zlookup->t_connect); - zlog_notice("%s: zclient lookup connection scheduled for %d seconds", - __PRETTY_FUNCTION__, delay); + zlog_notice("%s: zclient lookup connection scheduled for %d seconds", + __PRETTY_FUNCTION__, delay); } /* Schedule connection for now. */ static void zclient_lookup_sched_now(struct zclient *zlookup) { - thread_add_event(master, zclient_lookup_connect, zlookup, 0, - &zlookup->t_connect); + thread_add_event(master, zclient_lookup_connect, zlookup, 0, + &zlookup->t_connect); - zlog_notice("%s: zclient lookup immediate connection scheduled", - __PRETTY_FUNCTION__); + zlog_notice("%s: zclient lookup immediate connection scheduled", + __PRETTY_FUNCTION__); } /* Schedule reconnection, if needed. */ static void zclient_lookup_reconnect(struct zclient *zlookup) { - if (zlookup->t_connect) { - return; - } + if (zlookup->t_connect) { + return; + } - zclient_lookup_sched_now(zlookup); + zclient_lookup_sched_now(zlookup); } static void zclient_lookup_failed(struct zclient *zlookup) { - if (zlookup->sock >= 0) { - if (close(zlookup->sock)) { - zlog_warn("%s: closing fd=%d: errno=%d %s", __func__, zlookup->sock, - errno, safe_strerror(errno)); - } - zlookup->sock = -1; - } - - zclient_lookup_reconnect(zlookup); + if (zlookup->sock >= 0) { + if (close(zlookup->sock)) { + zlog_warn("%s: closing fd=%d: errno=%d %s", __func__, + zlookup->sock, errno, safe_strerror(errno)); + } + zlookup->sock = -1; + } + + zclient_lookup_reconnect(zlookup); } -void -zclient_lookup_free (void) +void zclient_lookup_free(void) { - zclient_stop (zlookup); - zclient_free (zlookup); - zlookup = NULL; + zclient_stop(zlookup); + zclient_free(zlookup); + zlookup = NULL; } -void -zclient_lookup_new (void) +void zclient_lookup_new(void) { - zlookup = zclient_new (master); - if (!zlookup) { - zlog_err("%s: zclient_new() failure", - __PRETTY_FUNCTION__); - return; - } - - zlookup->sock = -1; - zlookup->t_connect = NULL; + zlookup = zclient_new(master); + if (!zlookup) { + zlog_err("%s: zclient_new() failure", __PRETTY_FUNCTION__); + return; + } - zclient_lookup_sched_now(zlookup); + zlookup->sock = -1; + zlookup->t_connect = NULL; - zlog_notice("%s: zclient lookup socket initialized", - __PRETTY_FUNCTION__); + zclient_lookup_sched_now(zlookup); + zlog_notice("%s: zclient lookup socket initialized", + __PRETTY_FUNCTION__); } static int zclient_read_nexthop(struct zclient *zlookup, struct pim_zlookup_nexthop nexthop_tab[], - const int tab_size, - struct in_addr addr) + const int tab_size, struct in_addr addr) { - int num_ifindex = 0; - struct stream *s; - const uint16_t MIN_LEN = 10; /* getipv4=4 getc=1 getl=4 getc=1 */ - uint16_t length; - u_char marker; - u_char version; - vrf_id_t vrf_id; - uint16_t command = 0; - struct in_addr raddr; - uint8_t distance; - uint32_t metric; - int nexthop_num; - int i, err; - - if (PIM_DEBUG_PIM_TRACE_DETAIL) { - char addr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - zlog_debug("%s: addr=%s", - __PRETTY_FUNCTION__, - addr_str); - } - - s = zlookup->ibuf; - - while (command != ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB) - { - stream_reset(s); - err = zclient_read_header (s, zlookup->sock, &length, &marker, &version, - &vrf_id, &command); - if (err < 0) { - zlog_err("%s %s: zclient_read_header() failed", - __FILE__, __PRETTY_FUNCTION__); - zclient_lookup_failed(zlookup); - return -1; - } - - if (length < MIN_LEN) { - zlog_err("%s %s: failure reading zclient lookup socket: len=%d < MIN_LEN=%d", - __FILE__, __PRETTY_FUNCTION__, length, MIN_LEN); - zclient_lookup_failed(zlookup); - return -2; - } - } - - raddr.s_addr = stream_get_ipv4(s); - - if (raddr.s_addr != addr.s_addr) { - char addr_str[INET_ADDRSTRLEN]; - char raddr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - pim_inet4_dump("<raddr?>", raddr, raddr_str, sizeof(raddr_str)); - zlog_warn("%s: address mismatch: addr=%s raddr=%s", - __PRETTY_FUNCTION__, - addr_str, raddr_str); - /* warning only */ - } - - distance = stream_getc(s); - metric = stream_getl(s); - nexthop_num = stream_getc(s); - - if (nexthop_num < 1) { - zlog_err("%s: socket %d bad nexthop_num=%d", - __func__, zlookup->sock, nexthop_num); - return -6; - } - - for (i = 0; i < nexthop_num; ++i) { - enum nexthop_types_t nexthop_type; - struct pim_neighbor *nbr; - struct prefix p; - - nexthop_type = stream_getc(s); - if (num_ifindex >= tab_size) { - char addr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - zlog_warn("%s %s: found too many nexthop ifindexes (%d > %d) for address %s", - __FILE__, __PRETTY_FUNCTION__, - (num_ifindex + 1), tab_size, addr_str); - return num_ifindex; - } - switch (nexthop_type) { - case NEXTHOP_TYPE_IFINDEX: - case NEXTHOP_TYPE_IPV4_IFINDEX: - case NEXTHOP_TYPE_IPV4: - nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET; - if (nexthop_type == NEXTHOP_TYPE_IPV4_IFINDEX || - nexthop_type == NEXTHOP_TYPE_IPV4) { - nexthop_tab[num_ifindex].nexthop_addr.u.prefix4.s_addr = stream_get_ipv4(s); - } - else { - nexthop_tab[num_ifindex].nexthop_addr.u.prefix4.s_addr = PIM_NET_INADDR_ANY; - } - nexthop_tab[num_ifindex].ifindex = stream_getl(s); - nexthop_tab[num_ifindex].protocol_distance = distance; - nexthop_tab[num_ifindex].route_metric = metric; - ++num_ifindex; - break; - case NEXTHOP_TYPE_IPV6_IFINDEX: - nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET6; - stream_get (&nexthop_tab[num_ifindex].nexthop_addr.u.prefix6, - s, - sizeof(struct in6_addr)); - nexthop_tab[num_ifindex].ifindex = stream_getl (s); - - p.family = AF_INET6; - p.prefixlen = IPV6_MAX_PREFIXLEN; - memcpy (&p.u.prefix6, - &nexthop_tab[num_ifindex].nexthop_addr.u.prefix6, - sizeof(struct in6_addr)); - - /* - * If we are sending v6 secondary assume we receive v6 secondary - */ - if (pimg->send_v6_secondary) - nbr = pim_neighbor_find_by_secondary(if_lookup_by_index (nexthop_tab[num_ifindex].ifindex, VRF_DEFAULT), &p); - else - nbr = pim_neighbor_find_if (if_lookup_by_index (nexthop_tab[num_ifindex].ifindex, VRF_DEFAULT)); - if (nbr) - { - nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET; - nexthop_tab[num_ifindex].nexthop_addr.u.prefix4 = nbr->source_addr; - } - ++num_ifindex; - break; - default: - /* do nothing */ - { - char addr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - zlog_warn("%s %s: found non-ifindex nexthop type=%d for address %s", - __FILE__, __PRETTY_FUNCTION__, - nexthop_type, addr_str); - } - break; - } - } - - return num_ifindex; + int num_ifindex = 0; + struct stream *s; + const uint16_t MIN_LEN = 10; /* getipv4=4 getc=1 getl=4 getc=1 */ + uint16_t length; + u_char marker; + u_char version; + vrf_id_t vrf_id; + uint16_t command = 0; + struct in_addr raddr; + uint8_t distance; + uint32_t metric; + int nexthop_num; + int i, err; + + if (PIM_DEBUG_PIM_TRACE_DETAIL) { + char addr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); + zlog_debug("%s: addr=%s", __PRETTY_FUNCTION__, addr_str); + } + + s = zlookup->ibuf; + + while (command != ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB) { + stream_reset(s); + err = zclient_read_header(s, zlookup->sock, &length, &marker, + &version, &vrf_id, &command); + if (err < 0) { + zlog_err("%s %s: zclient_read_header() failed", + __FILE__, __PRETTY_FUNCTION__); + zclient_lookup_failed(zlookup); + return -1; + } + + if (length < MIN_LEN) { + zlog_err( + "%s %s: failure reading zclient lookup socket: len=%d < MIN_LEN=%d", + __FILE__, __PRETTY_FUNCTION__, length, MIN_LEN); + zclient_lookup_failed(zlookup); + return -2; + } + } + + raddr.s_addr = stream_get_ipv4(s); + + if (raddr.s_addr != addr.s_addr) { + char addr_str[INET_ADDRSTRLEN]; + char raddr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); + pim_inet4_dump("<raddr?>", raddr, raddr_str, sizeof(raddr_str)); + zlog_warn("%s: address mismatch: addr=%s raddr=%s", + __PRETTY_FUNCTION__, addr_str, raddr_str); + /* warning only */ + } + + distance = stream_getc(s); + metric = stream_getl(s); + nexthop_num = stream_getc(s); + + if (nexthop_num < 1) { + zlog_err("%s: socket %d bad nexthop_num=%d", __func__, + zlookup->sock, nexthop_num); + return -6; + } + + for (i = 0; i < nexthop_num; ++i) { + enum nexthop_types_t nexthop_type; + struct pim_neighbor *nbr; + struct prefix p; + + nexthop_type = stream_getc(s); + if (num_ifindex >= tab_size) { + char addr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, + sizeof(addr_str)); + zlog_warn( + "%s %s: found too many nexthop ifindexes (%d > %d) for address %s", + __FILE__, __PRETTY_FUNCTION__, + (num_ifindex + 1), tab_size, addr_str); + return num_ifindex; + } + switch (nexthop_type) { + case NEXTHOP_TYPE_IFINDEX: + case NEXTHOP_TYPE_IPV4_IFINDEX: + case NEXTHOP_TYPE_IPV4: + nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET; + if (nexthop_type == NEXTHOP_TYPE_IPV4_IFINDEX + || nexthop_type == NEXTHOP_TYPE_IPV4) { + nexthop_tab[num_ifindex] + .nexthop_addr.u.prefix4.s_addr = + stream_get_ipv4(s); + } else { + nexthop_tab[num_ifindex] + .nexthop_addr.u.prefix4.s_addr = + PIM_NET_INADDR_ANY; + } + nexthop_tab[num_ifindex].ifindex = stream_getl(s); + nexthop_tab[num_ifindex].protocol_distance = distance; + nexthop_tab[num_ifindex].route_metric = metric; + ++num_ifindex; + break; + case NEXTHOP_TYPE_IPV6_IFINDEX: + nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET6; + stream_get(&nexthop_tab[num_ifindex] + .nexthop_addr.u.prefix6, + s, sizeof(struct in6_addr)); + nexthop_tab[num_ifindex].ifindex = stream_getl(s); + + p.family = AF_INET6; + p.prefixlen = IPV6_MAX_PREFIXLEN; + memcpy(&p.u.prefix6, + &nexthop_tab[num_ifindex].nexthop_addr.u.prefix6, + sizeof(struct in6_addr)); + + /* + * If we are sending v6 secondary assume we receive v6 + * secondary + */ + if (pimg->send_v6_secondary) + nbr = pim_neighbor_find_by_secondary( + if_lookup_by_index( + nexthop_tab[num_ifindex] + .ifindex, + VRF_DEFAULT), + &p); + else + nbr = pim_neighbor_find_if(if_lookup_by_index( + nexthop_tab[num_ifindex].ifindex, + VRF_DEFAULT)); + if (nbr) { + nexthop_tab[num_ifindex].nexthop_addr.family = + AF_INET; + nexthop_tab[num_ifindex] + .nexthop_addr.u.prefix4 = + nbr->source_addr; + } + ++num_ifindex; + break; + default: + /* do nothing */ + { + char addr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, + sizeof(addr_str)); + zlog_warn( + "%s %s: found non-ifindex nexthop type=%d for address %s", + __FILE__, __PRETTY_FUNCTION__, + nexthop_type, addr_str); + } + break; + } + } + + return num_ifindex; } -static int -zclient_lookup_nexthop_once (struct pim_zlookup_nexthop nexthop_tab[], - const int tab_size, - struct in_addr addr) +static int zclient_lookup_nexthop_once(struct pim_zlookup_nexthop nexthop_tab[], + const int tab_size, struct in_addr addr) { - struct stream *s; - int ret; - - if (PIM_DEBUG_PIM_TRACE_DETAIL) { - char addr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - zlog_debug("%s: addr=%s", - __PRETTY_FUNCTION__, - addr_str); - } - - /* Check socket. */ - if (zlookup->sock < 0) { - zlog_err("%s %s: zclient lookup socket is not connected", - __FILE__, __PRETTY_FUNCTION__); - zclient_lookup_failed(zlookup); - return -1; - } - - s = zlookup->obuf; - stream_reset(s); - zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, VRF_DEFAULT); - stream_put_in_addr(s, &addr); - stream_putw_at(s, 0, stream_get_endp(s)); - - ret = writen(zlookup->sock, s->data, stream_get_endp(s)); - if (ret < 0) { - zlog_err("%s %s: writen() failure: %d writing to zclient lookup socket", - __FILE__, __PRETTY_FUNCTION__, errno); - zclient_lookup_failed(zlookup); - return -2; - } - if (ret == 0) { - zlog_err("%s %s: connection closed on zclient lookup socket", - __FILE__, __PRETTY_FUNCTION__); - zclient_lookup_failed(zlookup); - return -3; - } - - return zclient_read_nexthop(zlookup, nexthop_tab, - tab_size, addr); + struct stream *s; + int ret; + + if (PIM_DEBUG_PIM_TRACE_DETAIL) { + char addr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); + zlog_debug("%s: addr=%s", __PRETTY_FUNCTION__, addr_str); + } + + /* Check socket. */ + if (zlookup->sock < 0) { + zlog_err("%s %s: zclient lookup socket is not connected", + __FILE__, __PRETTY_FUNCTION__); + zclient_lookup_failed(zlookup); + return -1; + } + + s = zlookup->obuf; + stream_reset(s); + zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, VRF_DEFAULT); + stream_put_in_addr(s, &addr); + stream_putw_at(s, 0, stream_get_endp(s)); + + ret = writen(zlookup->sock, s->data, stream_get_endp(s)); + if (ret < 0) { + zlog_err( + "%s %s: writen() failure: %d writing to zclient lookup socket", + __FILE__, __PRETTY_FUNCTION__, errno); + zclient_lookup_failed(zlookup); + return -2; + } + if (ret == 0) { + zlog_err("%s %s: connection closed on zclient lookup socket", + __FILE__, __PRETTY_FUNCTION__); + zclient_lookup_failed(zlookup); + return -3; + } + + return zclient_read_nexthop(zlookup, nexthop_tab, tab_size, addr); } -int -zclient_lookup_nexthop (struct pim_zlookup_nexthop nexthop_tab[], - const int tab_size, - struct in_addr addr, - int max_lookup) +int zclient_lookup_nexthop(struct pim_zlookup_nexthop nexthop_tab[], + const int tab_size, struct in_addr addr, + int max_lookup) { - int lookup; - uint32_t route_metric = 0xFFFFFFFF; - uint8_t protocol_distance = 0xFF; - - qpim_nexthop_lookups++; - - for (lookup = 0; lookup < max_lookup; ++lookup) { - int num_ifindex; - int first_ifindex; - struct prefix nexthop_addr; - - num_ifindex = zclient_lookup_nexthop_once(nexthop_tab, - tab_size, addr); - if (num_ifindex < 1) { - if (PIM_DEBUG_ZEBRA) { - char addr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - zlog_debug("%s %s: lookup=%d/%d: could not find nexthop ifindex for address %s", - __FILE__, __PRETTY_FUNCTION__, - lookup, max_lookup, addr_str); - } - return -1; - } - - if (lookup < 1) { - /* this is the non-recursive lookup - save original metric/distance */ - route_metric = nexthop_tab[0].route_metric; - protocol_distance = nexthop_tab[0].protocol_distance; - } - - /* - * FIXME: Non-recursive nexthop ensured only for first ifindex. - * However, recursive route lookup should really be fixed in zebra daemon. - * See also TODO T24. - * - * So Zebra for NEXTHOP_TYPE_IPV4 returns the ifindex now since - * it was being stored. This Doesn't solve all cases of - * recursive lookup but for the most common types it does. - */ - first_ifindex = nexthop_tab[0].ifindex; - nexthop_addr = nexthop_tab[0].nexthop_addr; - if (first_ifindex > 0) { - /* found: first ifindex is non-recursive nexthop */ - - if (lookup > 0) { - /* Report non-recursive success after first lookup */ + int lookup; + uint32_t route_metric = 0xFFFFFFFF; + uint8_t protocol_distance = 0xFF; + + qpim_nexthop_lookups++; + + for (lookup = 0; lookup < max_lookup; ++lookup) { + int num_ifindex; + int first_ifindex; + struct prefix nexthop_addr; + + num_ifindex = zclient_lookup_nexthop_once(nexthop_tab, tab_size, + addr); + if (num_ifindex < 1) { + if (PIM_DEBUG_ZEBRA) { + char addr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, + sizeof(addr_str)); + zlog_debug( + "%s %s: lookup=%d/%d: could not find nexthop ifindex for address %s", + __FILE__, __PRETTY_FUNCTION__, lookup, + max_lookup, addr_str); + } + return -1; + } + + if (lookup < 1) { + /* this is the non-recursive lookup - save original + * metric/distance */ + route_metric = nexthop_tab[0].route_metric; + protocol_distance = nexthop_tab[0].protocol_distance; + } + + /* + * FIXME: Non-recursive nexthop ensured only for first ifindex. + * However, recursive route lookup should really be fixed in + * zebra daemon. + * See also TODO T24. + * + * So Zebra for NEXTHOP_TYPE_IPV4 returns the ifindex now since + * it was being stored. This Doesn't solve all cases of + * recursive lookup but for the most common types it does. + */ + first_ifindex = nexthop_tab[0].ifindex; + nexthop_addr = nexthop_tab[0].nexthop_addr; + if (first_ifindex > 0) { + /* found: first ifindex is non-recursive nexthop */ + + if (lookup > 0) { + /* Report non-recursive success after first + * lookup */ + if (PIM_DEBUG_ZEBRA) { + char addr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, + addr_str, + sizeof(addr_str)); + zlog_debug( + "%s %s: lookup=%d/%d: found non-recursive ifindex=%d for address %s dist=%d met=%d", + __FILE__, __PRETTY_FUNCTION__, + lookup, max_lookup, + first_ifindex, addr_str, + nexthop_tab[0] + .protocol_distance, + nexthop_tab[0].route_metric); + } + + /* use last address as nexthop address */ + nexthop_tab[0].nexthop_addr.u.prefix4 = addr; + + /* report original route metric/distance */ + nexthop_tab[0].route_metric = route_metric; + nexthop_tab[0].protocol_distance = + protocol_distance; + } + + return num_ifindex; + } + + if (PIM_DEBUG_ZEBRA) { + char addr_str[INET_ADDRSTRLEN]; + char nexthop_str[PREFIX_STRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, + sizeof(addr_str)); + pim_addr_dump("<nexthop?>", &nexthop_addr, nexthop_str, + sizeof(nexthop_str)); + zlog_debug( + "%s %s: lookup=%d/%d: zebra returned recursive nexthop %s for address %s dist=%d met=%d", + __FILE__, __PRETTY_FUNCTION__, lookup, + max_lookup, nexthop_str, addr_str, + nexthop_tab[0].protocol_distance, + nexthop_tab[0].route_metric); + } + + addr = + nexthop_addr.u.prefix4; /* use nexthop addr for + recursive lookup */ + + } /* for (max_lookup) */ + if (PIM_DEBUG_ZEBRA) { - char addr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - zlog_debug("%s %s: lookup=%d/%d: found non-recursive ifindex=%d for address %s dist=%d met=%d", - __FILE__, __PRETTY_FUNCTION__, - lookup, max_lookup, first_ifindex, addr_str, - nexthop_tab[0].protocol_distance, - nexthop_tab[0].route_metric); + char addr_str[INET_ADDRSTRLEN]; + pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); + zlog_warn( + "%s %s: lookup=%d/%d: failure searching recursive nexthop ifindex for address %s", + __FILE__, __PRETTY_FUNCTION__, lookup, max_lookup, + addr_str); } - /* use last address as nexthop address */ - nexthop_tab[0].nexthop_addr.u.prefix4 = addr; - - /* report original route metric/distance */ - nexthop_tab[0].route_metric = route_metric; - nexthop_tab[0].protocol_distance = protocol_distance; - } - - return num_ifindex; - } - - if (PIM_DEBUG_ZEBRA) { - char addr_str[INET_ADDRSTRLEN]; - char nexthop_str[PREFIX_STRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - pim_addr_dump("<nexthop?>", &nexthop_addr, nexthop_str, sizeof(nexthop_str)); - zlog_debug("%s %s: lookup=%d/%d: zebra returned recursive nexthop %s for address %s dist=%d met=%d", - __FILE__, __PRETTY_FUNCTION__, - lookup, max_lookup, nexthop_str, addr_str, - nexthop_tab[0].protocol_distance, - nexthop_tab[0].route_metric); - } - - addr = nexthop_addr.u.prefix4; /* use nexthop addr for recursive lookup */ - - } /* for (max_lookup) */ - - if (PIM_DEBUG_ZEBRA) { - char addr_str[INET_ADDRSTRLEN]; - pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); - zlog_warn("%s %s: lookup=%d/%d: failure searching recursive nexthop ifindex for address %s", - __FILE__, __PRETTY_FUNCTION__, - lookup, max_lookup, addr_str); - } - - return -2; + return -2; } -void -pim_zlookup_show_ip_multicast (struct vty *vty) +void pim_zlookup_show_ip_multicast(struct vty *vty) { - vty_out(vty, "Zclient lookup socket: "); - if (zlookup) { - vty_out (vty, "%d failures=%d\n", zlookup->sock, - zlookup->fail); - } - else { - vty_out (vty, "<null zclient>\n"); - } + vty_out(vty, "Zclient lookup socket: "); + if (zlookup) { + vty_out(vty, "%d failures=%d\n", zlookup->sock, zlookup->fail); + } else { + vty_out(vty, "<null zclient>\n"); + } } -int -pim_zlookup_sg_statistics (struct channel_oil *c_oil) +int pim_zlookup_sg_statistics(struct channel_oil *c_oil) { - struct stream *s = zlookup->obuf; - uint16_t command = 0; - unsigned long long lastused; - struct prefix_sg sg; - int count = 0; - int ret; - struct interface *ifp = pim_if_find_by_vif_index (c_oil->oil.mfcc_parent); - - if (PIM_DEBUG_ZEBRA) - { - struct prefix_sg more; - - more.src = c_oil->oil.mfcc_origin; - more.grp = c_oil->oil.mfcc_mcastgrp; - zlog_debug ("Sending Request for New Channel Oil Information(%s) VIIF %d", - pim_str_sg_dump (&more), c_oil->oil.mfcc_parent); - } - - if (!ifp) - return -1; - - stream_reset (s); - zclient_create_header (s, ZEBRA_IPMR_ROUTE_STATS, VRF_DEFAULT); - stream_put_in_addr (s, &c_oil->oil.mfcc_origin); - stream_put_in_addr (s, &c_oil->oil.mfcc_mcastgrp); - stream_putl (s, ifp->ifindex); - stream_putw_at(s, 0, stream_get_endp(s)); - - count = stream_get_endp (s); - ret = writen (zlookup->sock, s->data, count); - if (ret <= 0) - { - zlog_err("%s %s: writen() failure: %d writing to zclient lookup socket", - __FILE__, __PRETTY_FUNCTION__, errno); - return -1; - } - - s = zlookup->ibuf; - - while (command != ZEBRA_IPMR_ROUTE_STATS) - { - int err; - uint16_t length = 0; - vrf_id_t vrf_id; - u_char marker; - u_char version; - - stream_reset (s); - err = zclient_read_header (s, zlookup->sock, &length, &marker, &version, - &vrf_id, &command); - if (err < 0) - { - zlog_err ("%s %s: zclient_read_header() failed", - __FILE__, __PRETTY_FUNCTION__); - zclient_lookup_failed(zlookup); - return -1; - } - } - - sg.src.s_addr = stream_get_ipv4 (s); - sg.grp.s_addr = stream_get_ipv4 (s); - if (sg.src.s_addr != c_oil->oil.mfcc_origin.s_addr || - sg.grp.s_addr != c_oil->oil.mfcc_mcastgrp.s_addr) - { - zlog_err ("%s: Received wrong %s information", - __PRETTY_FUNCTION__, pim_str_sg_dump (&sg)); - zclient_lookup_failed (zlookup); - return -3; - } - - stream_get (&lastused, s, sizeof (lastused)); - ret = stream_getl (s); - - if (PIM_DEBUG_ZEBRA) - zlog_debug ("Received %lld for %s success: %d", lastused, pim_str_sg_dump (&sg), ret); - - c_oil->cc.lastused = lastused; - - return 0; + struct stream *s = zlookup->obuf; + uint16_t command = 0; + unsigned long long lastused; + struct prefix_sg sg; + int count = 0; + int ret; + struct interface *ifp = + pim_if_find_by_vif_index(c_oil->oil.mfcc_parent); + + if (PIM_DEBUG_ZEBRA) { + struct prefix_sg more; + + more.src = c_oil->oil.mfcc_origin; + more.grp = c_oil->oil.mfcc_mcastgrp; + zlog_debug( + "Sending Request for New Channel Oil Information(%s) VIIF %d", + pim_str_sg_dump(&more), c_oil->oil.mfcc_parent); + } + + if (!ifp) + return -1; + + stream_reset(s); + zclient_create_header(s, ZEBRA_IPMR_ROUTE_STATS, VRF_DEFAULT); + stream_put_in_addr(s, &c_oil->oil.mfcc_origin); + stream_put_in_addr(s, &c_oil->oil.mfcc_mcastgrp); + stream_putl(s, ifp->ifindex); + stream_putw_at(s, 0, stream_get_endp(s)); + + count = stream_get_endp(s); + ret = writen(zlookup->sock, s->data, count); + if (ret <= 0) { + zlog_err( + "%s %s: writen() failure: %d writing to zclient lookup socket", + __FILE__, __PRETTY_FUNCTION__, errno); + return -1; + } + + s = zlookup->ibuf; + + while (command != ZEBRA_IPMR_ROUTE_STATS) { + int err; + uint16_t length = 0; + vrf_id_t vrf_id; + u_char marker; + u_char version; + + stream_reset(s); + err = zclient_read_header(s, zlookup->sock, &length, &marker, + &version, &vrf_id, &command); + if (err < 0) { + zlog_err("%s %s: zclient_read_header() failed", + __FILE__, __PRETTY_FUNCTION__); + zclient_lookup_failed(zlookup); + return -1; + } + } + + sg.src.s_addr = stream_get_ipv4(s); + sg.grp.s_addr = stream_get_ipv4(s); + if (sg.src.s_addr != c_oil->oil.mfcc_origin.s_addr + || sg.grp.s_addr != c_oil->oil.mfcc_mcastgrp.s_addr) { + zlog_err("%s: Received wrong %s information", + __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); + zclient_lookup_failed(zlookup); + return -3; + } + + stream_get(&lastused, s, sizeof(lastused)); + ret = stream_getl(s); + + if (PIM_DEBUG_ZEBRA) + zlog_debug("Received %lld for %s success: %d", lastused, + pim_str_sg_dump(&sg), ret); + + c_oil->cc.lastused = lastused; + return 0; } |