void bmp_process_msg_peer_down(char **bmp_packet, u_int32_t *len, struct bmp_peer *bmpp)
{
struct bgp_misc_structs *bms;
struct bgp_peer *peer, *bmpp_bgp_peer;
struct bmp_data bdata;
struct bmp_peer_hdr *bph;
struct bmp_peer_down_hdr *bpdh;
void *ret;
if (!bmpp) return;
peer = &bmpp->self;
bms = bgp_select_misc_db(peer->type);
if (!bms) return;
memset(&bdata, 0, sizeof(bdata));
if (!(bph = (struct bmp_peer_hdr *) bmp_get_and_check_length(bmp_packet, len, sizeof(struct bmp_peer_hdr)))) {
Log(LOG_INFO, "INFO ( %s/%s ): [%s] [peer down] packet discarded: failed bmp_get_and_check_length() BMP peer hdr\n",
config.name, bms->log_str, peer->addr_str);
return;
}
if (!(bpdh = (struct bmp_peer_down_hdr *) bmp_get_and_check_length(bmp_packet, len, sizeof(struct bmp_peer_down_hdr)))) {
Log(LOG_INFO, "INFO ( %s/%s ): [%s] [peer down] packet discarded: failed bmp_get_and_check_length() BMP peer down hdr\n",
config.name, bms->log_str, peer->addr_str);
return;
}
bmp_peer_hdr_get_v_flag(bph, &bdata.family);
bmp_peer_hdr_get_peer_ip(bph, &bdata.peer_ip, bdata.family);
bmp_peer_hdr_get_l_flag(bph, &bdata.is_post);
bmp_peer_hdr_get_bgp_id(bph, &bdata.bgp_id);
bmp_peer_hdr_get_tstamp(bph, &bdata.tstamp);
bmp_peer_hdr_get_peer_asn(bph, &bdata.peer_asn);
bmp_peer_hdr_get_peer_type(bph, &bdata.peer_type);
if (bdata.family) {
/* If no timestamp in BMP then let's generate one */
if (!bdata.tstamp.tv_sec) gettimeofday(&bdata.tstamp, NULL);
{
struct bmp_log_peer_down blpd;
bmp_peer_down_hdr_get_reason(bpdh, &blpd.reason);
if (blpd.reason == BMP_PEER_DOWN_LOC_CODE) bmp_peer_down_hdr_get_loc_code(bmp_packet, len, &blpd.loc_code);
if (bms->msglog_backend_methods) {
char event_type[] = "log";
bmp_log_msg(peer, &bdata, &blpd, bms->log_seq, event_type, config.nfacctd_bmp_msglog_output, BMP_LOG_TYPE_PEER_DOWN);
}
if (bms->dump_backend_methods)
bmp_dump_se_ll_append(peer, &bdata, &blpd, BMP_LOG_TYPE_PEER_DOWN);
if (bms->msglog_backend_methods || bms->dump_backend_methods)
bgp_peer_log_seq_increment(&bms->log_seq);
}
ret = pm_tfind(&bdata.peer_ip, &bmpp->bgp_peers, bgp_peer_host_addr_cmp);
if (ret) {
char peer_str[] = "peer_ip", *saved_peer_str = bms->peer_str;
bmpp_bgp_peer = (*(struct bgp_peer **) ret);
bms->peer_str = peer_str;
bgp_peer_info_delete(bmpp_bgp_peer);
bms->peer_str = saved_peer_str;
pm_tdelete(&bdata.peer_ip, &bmpp->bgp_peers, bgp_peer_host_addr_cmp);
}
/* missing BMP peer up message, ie. case of replay/replication of BMP messages */
else {
char peer_ip[INET6_ADDRSTRLEN];
addr_to_str(peer_ip, &bdata.peer_ip);
if (!log_notification_isset(&bmpp->missing_peer_up, bdata.tstamp.tv_sec)) {
log_notification_set(&bmpp->missing_peer_up, bdata.tstamp.tv_sec, BMP_MISSING_PEER_UP_LOG_TOUT);
Log(LOG_INFO, "INFO ( %s/%s ): [%s] [peer down] packet discarded: missing peer up BMP message for peer %s\n",
config.name, bms->log_str, peer->addr_str, peer_ip);
}
}
}
}
void bmp_process_msg_peer_down(char **bmp_packet, u_int32_t *len, struct bmp_peer *bmpp)
{
struct bgp_misc_structs *bms;
struct bgp_peer *peer, *bmpp_bgp_peer;
struct bmp_data bdata;
struct bmp_peer_hdr *bph;
struct bmp_peer_down_hdr *bpdh;
void *ret;
if (!bmpp) return;
peer = &bmpp->self;
bms = bgp_select_misc_db(peer->type);
if (!bms) return;
memset(&bdata, 0, sizeof(bdata));
if (!(bph = (struct bmp_peer_hdr *) bmp_get_and_check_length(bmp_packet, len, sizeof(struct bmp_peer_hdr)))) {
Log(LOG_INFO, "INFO ( %s/core/BMP ): [%s] [peer down] packet discarded: failed bmp_get_and_check_length() BMP peer hdr\n",
config.name, peer->addr_str);
return;
}
if (!(bpdh = (struct bmp_peer_down_hdr *) bmp_get_and_check_length(bmp_packet, len, sizeof(struct bmp_peer_down_hdr)))) {
Log(LOG_INFO, "INFO ( %s/core/BMP ): [%s] [peer down] packet discarded: failed bmp_get_and_check_length() BMP peer down hdr\n",
config.name, peer->addr_str);
return;
}
bmp_peer_hdr_get_family(bph, &bdata.family);
bmp_peer_hdr_get_peer_ip(bph, &bdata.peer_ip, bdata.family);
bmp_peer_hdr_get_bgp_id(bph, &bdata.bgp_id);
bmp_peer_hdr_get_tstamp(bph, &bdata.tstamp);
bmp_peer_hdr_get_peer_asn(bph, &bdata.peer_asn);
bmp_peer_hdr_get_peer_type(bph, &bdata.peer_type);
if (bdata.family) {
/* If no timestamp in BMP then let's generate one */
if (!bdata.tstamp.tv_sec) gettimeofday(&bdata.tstamp, NULL);
{
struct bmp_log_peer_down blpd;
bmp_peer_down_hdr_get_reason(bpdh, &blpd.reason);
if (blpd.reason == BMP_PEER_DOWN_LOC_CODE) bmp_peer_down_hdr_get_loc_code(bmp_packet, len, &blpd.loc_code);
if (bms->msglog_backend_methods) {
char event_type[] = "log";
bmp_log_msg(peer, &bdata, &blpd, event_type, config.nfacctd_bmp_msglog_output, BMP_LOG_TYPE_PEER_DOWN);
}
if (bms->dump_backend_methods)
bmp_dump_se_ll_append(peer, &bdata, &blpd, BMP_LOG_TYPE_PEER_DOWN);
}
ret = pm_tfind(&bdata.peer_ip, &bmpp->bgp_peers, bmp_bmpp_bgp_peer_host_addr_cmp);
if (ret) {
char peer_str[] = "peer_ip", *saved_peer_str = bms->peer_str;
bmpp_bgp_peer = (*(struct bgp_peer **) ret);
bms->peer_str = peer_str;
bgp_peer_info_delete(bmpp_bgp_peer);
bms->peer_str = saved_peer_str;
pm_tdelete(&bdata.peer_ip, &bmpp->bgp_peers, bmp_bmpp_bgp_peer_host_addr_cmp);
}
}
}
