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-rw-r--r--bgpd/bgp_dump.c880
1 files changed, 880 insertions, 0 deletions
diff --git a/bgpd/bgp_dump.c b/bgpd/bgp_dump.c
new file mode 100644
index 0000000..68499e3
--- /dev/null
+++ b/bgpd/bgp_dump.c
@@ -0,0 +1,880 @@
+/* BGP-4 dump routine
+ * Copyright (C) 1999 Kunihiro Ishiguro
+ *
+ * This file is part of GNU Zebra.
+ *
+ * GNU Zebra is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * GNU Zebra is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <zebra.h>
+
+#include "log.h"
+#include "stream.h"
+#include "sockunion.h"
+#include "command.h"
+#include "prefix.h"
+#include "thread.h"
+#include "linklist.h"
+#include "queue.h"
+#include "memory.h"
+#include "filter.h"
+
+#include "bgpd/bgp_table.h"
+#include "bgpd/bgpd.h"
+#include "bgpd/bgp_route.h"
+#include "bgpd/bgp_attr.h"
+#include "bgpd/bgp_dump.h"
+#include "bgpd/bgp_errors.h"
+#include "bgpd/bgp_packet.h"
+
+enum bgp_dump_type {
+ BGP_DUMP_ALL,
+ BGP_DUMP_ALL_ET,
+ BGP_DUMP_UPDATES,
+ BGP_DUMP_UPDATES_ET,
+ BGP_DUMP_ROUTES
+};
+
+static const struct bgp_dump_type_map {
+ enum bgp_dump_type type;
+ const char *str;
+} bgp_dump_type_map[] = {
+ {BGP_DUMP_ALL, "all"}, {BGP_DUMP_ALL_ET, "all-et"},
+ {BGP_DUMP_UPDATES, "updates"}, {BGP_DUMP_UPDATES_ET, "updates-et"},
+ {BGP_DUMP_ROUTES, "routes-mrt"}, {0, NULL},
+};
+
+enum MRT_MSG_TYPES {
+ MSG_NULL,
+ MSG_START, /* sender is starting up */
+ MSG_DIE, /* receiver should shut down */
+ MSG_I_AM_DEAD, /* sender is shutting down */
+ MSG_PEER_DOWN, /* sender's peer is down */
+ MSG_PROTOCOL_BGP, /* msg is a BGP packet */
+ MSG_PROTOCOL_RIP, /* msg is a RIP packet */
+ MSG_PROTOCOL_IDRP, /* msg is an IDRP packet */
+ MSG_PROTOCOL_RIPNG, /* msg is a RIPNG packet */
+ MSG_PROTOCOL_BGP4PLUS, /* msg is a BGP4+ packet */
+ MSG_PROTOCOL_BGP4PLUS_01, /* msg is a BGP4+ (draft 01) packet */
+ MSG_PROTOCOL_OSPF, /* msg is an OSPF packet */
+ MSG_TABLE_DUMP, /* routing table dump */
+ MSG_TABLE_DUMP_V2 /* routing table dump, version 2 */
+};
+
+struct bgp_dump {
+ enum bgp_dump_type type;
+
+ char *filename;
+
+ FILE *fp;
+
+ unsigned int interval;
+
+ char *interval_str;
+
+ struct thread *t_interval;
+};
+
+static int bgp_dump_unset(struct bgp_dump *bgp_dump);
+static void bgp_dump_interval_func(struct thread *);
+
+/* BGP packet dump output buffer. */
+struct stream *bgp_dump_obuf;
+
+/* BGP dump strucuture for 'dump bgp all' */
+struct bgp_dump bgp_dump_all;
+
+/* BGP dump structure for 'dump bgp updates' */
+struct bgp_dump bgp_dump_updates;
+
+/* BGP dump structure for 'dump bgp routes' */
+struct bgp_dump bgp_dump_routes;
+
+static FILE *bgp_dump_open_file(struct bgp_dump *bgp_dump)
+{
+ int ret;
+ time_t clock;
+ struct tm tm;
+ char fullpath[MAXPATHLEN];
+ char realpath[MAXPATHLEN];
+ mode_t oldumask;
+
+ time(&clock);
+ localtime_r(&clock, &tm);
+
+ if (bgp_dump->filename[0] != DIRECTORY_SEP) {
+ snprintf(fullpath, sizeof(fullpath), "%s/%s", vty_get_cwd(),
+ bgp_dump->filename);
+ ret = strftime(realpath, MAXPATHLEN, fullpath, &tm);
+ } else
+ ret = strftime(realpath, MAXPATHLEN, bgp_dump->filename, &tm);
+
+ if (ret == 0) {
+ flog_warn(EC_BGP_DUMP, "%s: strftime error", __func__);
+ return NULL;
+ }
+
+ if (bgp_dump->fp)
+ fclose(bgp_dump->fp);
+
+
+ oldumask = umask(0777 & ~LOGFILE_MASK);
+ bgp_dump->fp = fopen(realpath, "w");
+
+ if (bgp_dump->fp == NULL) {
+ flog_warn(EC_BGP_DUMP, "%s: %s: %s", __func__, realpath,
+ strerror(errno));
+ umask(oldumask);
+ return NULL;
+ }
+ umask(oldumask);
+
+ return bgp_dump->fp;
+}
+
+static int bgp_dump_interval_add(struct bgp_dump *bgp_dump, int interval)
+{
+ int secs_into_day;
+ time_t t;
+ struct tm tm;
+
+ if (interval > 0) {
+ /* Periodic dump every interval seconds */
+ if ((interval < 86400) && ((86400 % interval) == 0)) {
+ /* Dump at predictable times: if a day has a whole
+ * number of
+ * intervals, dump every interval seconds starting from
+ * midnight
+ */
+ (void)time(&t);
+ localtime_r(&t, &tm);
+ secs_into_day = tm.tm_sec + 60 * tm.tm_min
+ + 60 * 60 * tm.tm_hour;
+ interval = interval
+ - secs_into_day % interval; /* always > 0 */
+ }
+ thread_add_timer(bm->master, bgp_dump_interval_func, bgp_dump,
+ interval, &bgp_dump->t_interval);
+ } else {
+ /* One-off dump: execute immediately, don't affect any scheduled
+ * dumps */
+ thread_add_event(bm->master, bgp_dump_interval_func, bgp_dump,
+ 0, &bgp_dump->t_interval);
+ }
+
+ return 0;
+}
+
+/* Dump common header. */
+static void bgp_dump_header(struct stream *obuf, int type, int subtype,
+ int dump_type)
+{
+ struct timeval clock;
+ long msecs;
+ time_t secs;
+
+ if ((dump_type == BGP_DUMP_ALL_ET || dump_type == BGP_DUMP_UPDATES_ET)
+ && type == MSG_PROTOCOL_BGP4MP)
+ type = MSG_PROTOCOL_BGP4MP_ET;
+
+ gettimeofday(&clock, NULL);
+
+ secs = clock.tv_sec;
+ msecs = clock.tv_usec;
+
+ /* Put dump packet header. */
+ stream_putl(obuf, secs);
+ stream_putw(obuf, type);
+ stream_putw(obuf, subtype);
+ stream_putl(obuf, 0); /* len */
+
+ /* Adding microseconds for the MRT Extended Header */
+ if (type == MSG_PROTOCOL_BGP4MP_ET)
+ stream_putl(obuf, msecs);
+}
+
+static void bgp_dump_set_size(struct stream *s, int type)
+{
+ /*
+ * The BGP_DUMP_HEADER_SIZE stay at 12 event when ET:
+ * "The Microsecond Timestamp is included in the computation
+ * of the Length field value." (RFC6396 2011)
+ */
+ stream_putl_at(s, 8, stream_get_endp(s) - BGP_DUMP_HEADER_SIZE);
+}
+
+static void bgp_dump_routes_index_table(struct bgp *bgp)
+{
+ struct peer *peer;
+ struct listnode *node;
+ uint16_t peerno = 1;
+ struct stream *obuf;
+
+ obuf = bgp_dump_obuf;
+ stream_reset(obuf);
+
+ /* MRT header */
+ bgp_dump_header(obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_PEER_INDEX_TABLE,
+ BGP_DUMP_ROUTES);
+
+ /* Collector BGP ID */
+ stream_put_in_addr(obuf, &bgp->router_id);
+
+ /* View name */
+ if (bgp->name_pretty) {
+ stream_putw(obuf, strlen(bgp->name_pretty));
+ stream_put(obuf, bgp->name_pretty, strlen(bgp->name_pretty));
+ } else {
+ stream_putw(obuf, 0);
+ }
+
+ /* Peer count ( plus one extra internal peer ) */
+ stream_putw(obuf, listcount(bgp->peer) + 1);
+
+ /* Populate fake peer at index 0, for locally originated routes */
+ /* Peer type (IPv4) */
+ stream_putc(obuf,
+ TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4
+ + TABLE_DUMP_V2_PEER_INDEX_TABLE_IP);
+ /* Peer BGP ID (0.0.0.0) */
+ stream_putl(obuf, 0);
+ /* Peer IP address (0.0.0.0) */
+ stream_putl(obuf, 0);
+ /* Peer ASN (0) */
+ stream_putl(obuf, 0);
+
+ /* Walk down all peers */
+ for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) {
+
+ /* Peer's type */
+ if (sockunion_family(&peer->su) == AF_INET) {
+ stream_putc(
+ obuf,
+ TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4
+ + TABLE_DUMP_V2_PEER_INDEX_TABLE_IP);
+ } else if (sockunion_family(&peer->su) == AF_INET6) {
+ stream_putc(
+ obuf,
+ TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4
+ + TABLE_DUMP_V2_PEER_INDEX_TABLE_IP6);
+ }
+
+ /* Peer's BGP ID */
+ stream_put_in_addr(obuf, &peer->remote_id);
+
+ /* Peer's IP address */
+ if (sockunion_family(&peer->su) == AF_INET) {
+ stream_put_in_addr(obuf, &peer->su.sin.sin_addr);
+ } else if (sockunion_family(&peer->su) == AF_INET6) {
+ stream_write(obuf, (uint8_t *)&peer->su.sin6.sin6_addr,
+ IPV6_MAX_BYTELEN);
+ }
+
+ /* Peer's AS number. */
+ /* Note that, as this is an AS4 compliant quagga, the RIB is
+ * always AS4 */
+ stream_putl(obuf, peer->as);
+
+ /* Store the peer number for this peer */
+ peer->table_dump_index = peerno;
+ peerno++;
+ }
+
+ bgp_dump_set_size(obuf, MSG_TABLE_DUMP_V2);
+
+ fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump_routes.fp);
+ fflush(bgp_dump_routes.fp);
+}
+
+static struct bgp_path_info *
+bgp_dump_route_node_record(int afi, struct bgp_dest *dest,
+ struct bgp_path_info *path, unsigned int seq)
+{
+ struct stream *obuf;
+ size_t sizep;
+ size_t endp;
+ bool addpath_capable;
+ const struct prefix *p = bgp_dest_get_prefix(dest);
+
+ obuf = bgp_dump_obuf;
+ stream_reset(obuf);
+
+ addpath_capable = bgp_addpath_encode_rx(path->peer, afi, SAFI_UNICAST);
+
+ /* MRT header */
+ if (afi == AFI_IP && addpath_capable)
+ bgp_dump_header(obuf, MSG_TABLE_DUMP_V2,
+ TABLE_DUMP_V2_RIB_IPV4_UNICAST_ADDPATH,
+ BGP_DUMP_ROUTES);
+ else if (afi == AFI_IP)
+ bgp_dump_header(obuf, MSG_TABLE_DUMP_V2,
+ TABLE_DUMP_V2_RIB_IPV4_UNICAST,
+ BGP_DUMP_ROUTES);
+ else if (afi == AFI_IP6 && addpath_capable)
+ bgp_dump_header(obuf, MSG_TABLE_DUMP_V2,
+ TABLE_DUMP_V2_RIB_IPV6_UNICAST_ADDPATH,
+ BGP_DUMP_ROUTES);
+ else if (afi == AFI_IP6)
+ bgp_dump_header(obuf, MSG_TABLE_DUMP_V2,
+ TABLE_DUMP_V2_RIB_IPV6_UNICAST,
+ BGP_DUMP_ROUTES);
+
+ /* Sequence number */
+ stream_putl(obuf, seq);
+
+ /* Prefix length */
+ stream_putc(obuf, p->prefixlen);
+
+ /* Prefix */
+ if (afi == AFI_IP) {
+ /* We'll dump only the useful bits (those not 0), but have to
+ * align on 8 bits */
+ stream_write(obuf, (uint8_t *)&p->u.prefix4,
+ (p->prefixlen + 7) / 8);
+ } else if (afi == AFI_IP6) {
+ /* We'll dump only the useful bits (those not 0), but have to
+ * align on 8 bits */
+ stream_write(obuf, (uint8_t *)&p->u.prefix6,
+ (p->prefixlen + 7) / 8);
+ }
+
+ /* Save where we are now, so we can overwride the entry count later */
+ sizep = stream_get_endp(obuf);
+
+ /* Entry count */
+ uint16_t entry_count = 0;
+
+ /* Entry count, note that this is overwritten later */
+ stream_putw(obuf, 0);
+
+ endp = stream_get_endp(obuf);
+ for (; path; path = path->next) {
+ size_t cur_endp;
+
+ /* Peer index */
+ stream_putw(obuf, path->peer->table_dump_index);
+
+ /* Originated */
+ stream_putl(obuf, time(NULL) - (monotime(NULL) - path->uptime));
+
+ /*Path Identifier*/
+ if (addpath_capable) {
+ stream_putl(obuf, path->addpath_rx_id);
+ }
+
+ /* Dump attribute. */
+ /* Skip prefix & AFI/SAFI for MP_NLRI */
+ bgp_dump_routes_attr(obuf, path->attr, p);
+
+ cur_endp = stream_get_endp(obuf);
+ if (cur_endp > BGP_STANDARD_MESSAGE_MAX_PACKET_SIZE
+ + BGP_DUMP_MSG_HEADER
+ + BGP_DUMP_HEADER_SIZE) {
+ stream_set_endp(obuf, endp);
+ break;
+ }
+
+ entry_count++;
+ endp = cur_endp;
+ }
+
+ /* Overwrite the entry count, now that we know the right number */
+ stream_putw_at(obuf, sizep, entry_count);
+
+ bgp_dump_set_size(obuf, MSG_TABLE_DUMP_V2);
+ fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump_routes.fp);
+
+ return path;
+}
+
+
+/* Runs under child process. */
+static unsigned int bgp_dump_routes_func(int afi, int first_run,
+ unsigned int seq)
+{
+ struct bgp_path_info *path;
+ struct bgp_dest *dest;
+ struct bgp *bgp;
+ struct bgp_table *table;
+
+ bgp = bgp_get_default();
+ if (!bgp)
+ return seq;
+
+ if (bgp_dump_routes.fp == NULL)
+ return seq;
+
+ /* Note that bgp_dump_routes_index_table will do ipv4 and ipv6 peers,
+ so this should only be done on the first call to
+ bgp_dump_routes_func.
+ ( this function will be called once for ipv4 and once for ipv6 ) */
+ if (first_run)
+ bgp_dump_routes_index_table(bgp);
+
+ /* Walk down each BGP route. */
+ table = bgp->rib[afi][SAFI_UNICAST];
+
+ for (dest = bgp_table_top(table); dest; dest = bgp_route_next(dest)) {
+ path = bgp_dest_get_bgp_path_info(dest);
+ while (path) {
+ path = bgp_dump_route_node_record(afi, dest, path, seq);
+ seq++;
+ }
+ }
+
+ fflush(bgp_dump_routes.fp);
+
+ return seq;
+}
+
+static void bgp_dump_interval_func(struct thread *t)
+{
+ struct bgp_dump *bgp_dump;
+ bgp_dump = THREAD_ARG(t);
+
+ /* Reschedule dump even if file couldn't be opened this time... */
+ if (bgp_dump_open_file(bgp_dump) != NULL) {
+ /* In case of bgp_dump_routes, we need special route dump
+ * function. */
+ if (bgp_dump->type == BGP_DUMP_ROUTES) {
+ unsigned int seq = bgp_dump_routes_func(AFI_IP, 1, 0);
+ bgp_dump_routes_func(AFI_IP6, 0, seq);
+ /* Close the file now. For a RIB dump there's no point
+ * in leaving
+ * it open until the next scheduled dump starts. */
+ fclose(bgp_dump->fp);
+ bgp_dump->fp = NULL;
+ }
+ }
+
+ /* if interval is set reschedule */
+ if (bgp_dump->interval > 0)
+ bgp_dump_interval_add(bgp_dump, bgp_dump->interval);
+}
+
+/* Dump common information. */
+static void bgp_dump_common(struct stream *obuf, struct peer *peer,
+ int forceas4)
+{
+ char empty[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+ /* Source AS number and Destination AS number. */
+ if (forceas4 || CHECK_FLAG(peer->cap, PEER_CAP_AS4_RCV)) {
+ stream_putl(obuf, peer->as);
+ stream_putl(obuf, peer->local_as);
+ } else {
+ stream_putw(obuf, peer->as);
+ stream_putw(obuf, peer->local_as);
+ }
+
+ if (peer->su.sa.sa_family == AF_INET) {
+ stream_putw(obuf, peer->ifp ? peer->ifp->ifindex : 0);
+ stream_putw(obuf, AFI_IP);
+
+ stream_put(obuf, &peer->su.sin.sin_addr, IPV4_MAX_BYTELEN);
+
+ if (peer->su_local)
+ stream_put(obuf, &peer->su_local->sin.sin_addr,
+ IPV4_MAX_BYTELEN);
+ else
+ stream_put(obuf, empty, IPV4_MAX_BYTELEN);
+ } else if (peer->su.sa.sa_family == AF_INET6) {
+ /* Interface Index and Address family. */
+ stream_putw(obuf, peer->ifp ? peer->ifp->ifindex : 0);
+ stream_putw(obuf, AFI_IP6);
+
+ /* Source IP Address and Destination IP Address. */
+ stream_put(obuf, &peer->su.sin6.sin6_addr, IPV6_MAX_BYTELEN);
+
+ if (peer->su_local)
+ stream_put(obuf, &peer->su_local->sin6.sin6_addr,
+ IPV6_MAX_BYTELEN);
+ else
+ stream_put(obuf, empty, IPV6_MAX_BYTELEN);
+ }
+}
+
+/* Dump BGP status change. */
+int bgp_dump_state(struct peer *peer)
+{
+ struct stream *obuf;
+
+ /* If dump file pointer is disabled return immediately. */
+ if (bgp_dump_all.fp == NULL)
+ return 0;
+
+ /* Make dump stream. */
+ obuf = bgp_dump_obuf;
+ stream_reset(obuf);
+
+ bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_STATE_CHANGE_AS4,
+ bgp_dump_all.type);
+ bgp_dump_common(obuf, peer, 1); /* force this in as4speak*/
+
+ stream_putw(obuf, peer->ostatus);
+ stream_putw(obuf, peer->status);
+
+ /* Set length. */
+ bgp_dump_set_size(obuf, MSG_PROTOCOL_BGP4MP);
+
+ /* Write to the stream. */
+ fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump_all.fp);
+ fflush(bgp_dump_all.fp);
+ return 0;
+}
+
+static void bgp_dump_packet_func(struct bgp_dump *bgp_dump, struct peer *peer,
+ struct stream *packet)
+{
+ struct stream *obuf;
+ bool addpath_capable = false;
+ /* If dump file pointer is disabled return immediately. */
+ if (bgp_dump->fp == NULL)
+ return;
+ if (peer->su.sa.sa_family == AF_INET) {
+ addpath_capable =
+ bgp_addpath_encode_rx(peer, AFI_IP, SAFI_UNICAST);
+ } else if (peer->su.sa.sa_family == AF_INET6) {
+ addpath_capable =
+ bgp_addpath_encode_rx(peer, AFI_IP6, SAFI_UNICAST);
+ }
+
+ /* Make dump stream. */
+ obuf = bgp_dump_obuf;
+ stream_reset(obuf);
+
+ /* Dump header and common part. */
+ if (CHECK_FLAG(peer->cap, PEER_CAP_AS4_RCV) && addpath_capable) {
+ bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP,
+ BGP4MP_MESSAGE_AS4_ADDPATH, bgp_dump->type);
+ } else if (CHECK_FLAG(peer->cap, PEER_CAP_AS4_RCV)) {
+ bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE_AS4,
+ bgp_dump->type);
+ } else if (addpath_capable) {
+ bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP,
+ BGP4MP_MESSAGE_ADDPATH, bgp_dump->type);
+ } else {
+ bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE,
+ bgp_dump->type);
+ }
+ bgp_dump_common(obuf, peer, 0);
+
+ /* Packet contents. */
+ stream_put(obuf, STREAM_DATA(packet), stream_get_endp(packet));
+
+ /* Set length. */
+ bgp_dump_set_size(obuf, MSG_PROTOCOL_BGP4MP);
+
+ /* Write to the stream. */
+ fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump->fp);
+ fflush(bgp_dump->fp);
+}
+
+/* Called from bgp_packet.c when BGP packet is received. */
+static int bgp_dump_packet(struct peer *peer, uint8_t type, bgp_size_t size,
+ struct stream *packet)
+{
+ /* bgp_dump_all. */
+ bgp_dump_packet_func(&bgp_dump_all, peer, packet);
+
+ /* bgp_dump_updates. */
+ if (type == BGP_MSG_UPDATE)
+ bgp_dump_packet_func(&bgp_dump_updates, peer, packet);
+ return 0;
+}
+
+static unsigned int bgp_dump_parse_time(const char *str)
+{
+ int i;
+ int len;
+ int seen_h;
+ int seen_m;
+ int time;
+ unsigned int total;
+
+ time = 0;
+ total = 0;
+ seen_h = 0;
+ seen_m = 0;
+ len = strlen(str);
+
+ for (i = 0; i < len; i++) {
+ if (isdigit((unsigned char)str[i])) {
+ time *= 10;
+ time += str[i] - '0';
+ } else if (str[i] == 'H' || str[i] == 'h') {
+ if (seen_h)
+ return 0;
+ if (seen_m)
+ return 0;
+ total += time * 60 * 60;
+ time = 0;
+ seen_h = 1;
+ } else if (str[i] == 'M' || str[i] == 'm') {
+ if (seen_m)
+ return 0;
+ total += time * 60;
+ time = 0;
+ seen_m = 1;
+ } else
+ return 0;
+ }
+ return total + time;
+}
+
+static int bgp_dump_set(struct vty *vty, struct bgp_dump *bgp_dump,
+ enum bgp_dump_type type, const char *path,
+ const char *interval_str)
+{
+ unsigned int interval;
+
+ /* Don't schedule duplicate dumps if the dump command is given twice */
+ if (bgp_dump->filename && strcmp(path, bgp_dump->filename) == 0
+ && type == bgp_dump->type) {
+ if (interval_str) {
+ if (bgp_dump->interval_str
+ && strcmp(bgp_dump->interval_str, interval_str)
+ == 0)
+ return CMD_SUCCESS;
+ } else {
+ if (!bgp_dump->interval_str)
+ return CMD_SUCCESS;
+ }
+ }
+
+ /* Removing previous config */
+ bgp_dump_unset(bgp_dump);
+
+ if (interval_str) {
+ /* Check interval string. */
+ interval = bgp_dump_parse_time(interval_str);
+ if (interval == 0) {
+ vty_out(vty, "Malformed interval string\n");
+ return CMD_WARNING_CONFIG_FAILED;
+ }
+
+ /* Setting interval string */
+ bgp_dump->interval_str =
+ XSTRDUP(MTYPE_BGP_DUMP_STR, interval_str);
+ } else {
+ interval = 0;
+ }
+
+ /* Set type. */
+ bgp_dump->type = type;
+
+ /* Set interval */
+ bgp_dump->interval = interval;
+
+ /* Set file name. */
+ bgp_dump->filename = XSTRDUP(MTYPE_BGP_DUMP_STR, path);
+
+ /* Create interval thread. */
+ bgp_dump_interval_add(bgp_dump, interval);
+
+ /* This should be called when interval is expired. */
+ bgp_dump_open_file(bgp_dump);
+
+ return CMD_SUCCESS;
+}
+
+static int bgp_dump_unset(struct bgp_dump *bgp_dump)
+{
+ /* Removing file name. */
+ XFREE(MTYPE_BGP_DUMP_STR, bgp_dump->filename);
+
+ /* Closing file. */
+ if (bgp_dump->fp) {
+ fclose(bgp_dump->fp);
+ bgp_dump->fp = NULL;
+ }
+
+ /* Removing interval event. */
+ THREAD_OFF(bgp_dump->t_interval);
+
+ bgp_dump->interval = 0;
+
+ /* Removing interval string. */
+ XFREE(MTYPE_BGP_DUMP_STR, bgp_dump->interval_str);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (dump_bgp_all,
+ dump_bgp_all_cmd,
+ "dump bgp <all|all-et|updates|updates-et|routes-mrt> PATH [INTERVAL]",
+ "Dump packet\n"
+ "BGP packet dump\n"
+ "Dump all BGP packets\nDump all BGP packets (Extended Timestamp Header)\n"
+ "Dump BGP updates only\nDump BGP updates only (Extended Timestamp Header)\n"
+ "Dump whole BGP routing table\n"
+ "Output filename\n"
+ "Interval of output\n")
+{
+ int idx_dump_routes = 2;
+ int idx_path = 3;
+ int idx_interval = 4;
+ int bgp_dump_type = 0;
+ const char *interval = NULL;
+ struct bgp_dump *bgp_dump_struct = NULL;
+ const struct bgp_dump_type_map *map = NULL;
+
+ for (map = bgp_dump_type_map; map->str; map++)
+ if (strmatch(argv[idx_dump_routes]->text, map->str))
+ bgp_dump_type = map->type;
+
+ switch (bgp_dump_type) {
+ case BGP_DUMP_ALL:
+ case BGP_DUMP_ALL_ET:
+ bgp_dump_struct = &bgp_dump_all;
+ break;
+ case BGP_DUMP_UPDATES:
+ case BGP_DUMP_UPDATES_ET:
+ bgp_dump_struct = &bgp_dump_updates;
+ break;
+ case BGP_DUMP_ROUTES:
+ default:
+ bgp_dump_struct = &bgp_dump_routes;
+ break;
+ }
+
+ /* When an interval is given */
+ if (argc == idx_interval + 1)
+ interval = argv[idx_interval]->arg;
+
+ return bgp_dump_set(vty, bgp_dump_struct, bgp_dump_type,
+ argv[idx_path]->arg, interval);
+}
+
+DEFUN (no_dump_bgp_all,
+ no_dump_bgp_all_cmd,
+ "no dump bgp <all|all-et|updates|updates-et|routes-mrt> [PATH [INTERVAL]]",
+ NO_STR
+ "Stop dump packet\n"
+ "Stop BGP packet dump\n"
+ "Stop dump process all\n"
+ "Stop dump process all-et\n"
+ "Stop dump process updates\n"
+ "Stop dump process updates-et\n"
+ "Stop dump process route-mrt\n"
+ "Output filename\n"
+ "Interval of output\n")
+{
+ int idx_dump_routes = 3;
+ int bgp_dump_type = 0;
+ const struct bgp_dump_type_map *map = NULL;
+ struct bgp_dump *bgp_dump_struct = NULL;
+
+ for (map = bgp_dump_type_map; map->str; map++)
+ if (strmatch(argv[idx_dump_routes]->text, map->str))
+ bgp_dump_type = map->type;
+
+ switch (bgp_dump_type) {
+ case BGP_DUMP_ALL:
+ case BGP_DUMP_ALL_ET:
+ bgp_dump_struct = &bgp_dump_all;
+ break;
+ case BGP_DUMP_UPDATES:
+ case BGP_DUMP_UPDATES_ET:
+ bgp_dump_struct = &bgp_dump_updates;
+ break;
+ case BGP_DUMP_ROUTES:
+ default:
+ bgp_dump_struct = &bgp_dump_routes;
+ break;
+ }
+
+ return bgp_dump_unset(bgp_dump_struct);
+}
+
+static int config_write_bgp_dump(struct vty *vty);
+/* BGP node structure. */
+static struct cmd_node bgp_dump_node = {
+ .name = "dump",
+ .node = DUMP_NODE,
+ .prompt = "",
+ .config_write = config_write_bgp_dump,
+};
+
+static int config_write_bgp_dump(struct vty *vty)
+{
+ if (bgp_dump_all.filename) {
+ const char *type_str = "all";
+ if (bgp_dump_all.type == BGP_DUMP_ALL_ET)
+ type_str = "all-et";
+
+ if (bgp_dump_all.interval_str)
+ vty_out(vty, "dump bgp %s %s %s\n", type_str,
+ bgp_dump_all.filename,
+ bgp_dump_all.interval_str);
+ else
+ vty_out(vty, "dump bgp %s %s\n", type_str,
+ bgp_dump_all.filename);
+ }
+ if (bgp_dump_updates.filename) {
+ const char *type_str = "updates";
+ if (bgp_dump_updates.type == BGP_DUMP_UPDATES_ET)
+ type_str = "updates-et";
+
+ if (bgp_dump_updates.interval_str)
+ vty_out(vty, "dump bgp %s %s %s\n", type_str,
+ bgp_dump_updates.filename,
+ bgp_dump_updates.interval_str);
+ else
+ vty_out(vty, "dump bgp %s %s\n", type_str,
+ bgp_dump_updates.filename);
+ }
+ if (bgp_dump_routes.filename) {
+ if (bgp_dump_routes.interval_str)
+ vty_out(vty, "dump bgp routes-mrt %s %s\n",
+ bgp_dump_routes.filename,
+ bgp_dump_routes.interval_str);
+ else
+ vty_out(vty, "dump bgp routes-mrt %s\n",
+ bgp_dump_routes.filename);
+ }
+ return 0;
+}
+
+/* Initialize BGP packet dump functionality. */
+void bgp_dump_init(void)
+{
+ memset(&bgp_dump_all, 0, sizeof(bgp_dump_all));
+ memset(&bgp_dump_updates, 0, sizeof(bgp_dump_updates));
+ memset(&bgp_dump_routes, 0, sizeof(bgp_dump_routes));
+
+ bgp_dump_obuf =
+ stream_new(BGP_MAX_PACKET_SIZE + BGP_MAX_PACKET_SIZE_OVERFLOW);
+
+ install_node(&bgp_dump_node);
+
+ install_element(CONFIG_NODE, &dump_bgp_all_cmd);
+ install_element(CONFIG_NODE, &no_dump_bgp_all_cmd);
+
+ hook_register(bgp_packet_dump, bgp_dump_packet);
+ hook_register(peer_status_changed, bgp_dump_state);
+}
+
+void bgp_dump_finish(void)
+{
+ bgp_dump_unset(&bgp_dump_all);
+ bgp_dump_unset(&bgp_dump_updates);
+ bgp_dump_unset(&bgp_dump_routes);
+
+ stream_free(bgp_dump_obuf);
+ bgp_dump_obuf = NULL;
+ hook_unregister(bgp_packet_dump, bgp_dump_packet);
+ hook_unregister(peer_status_changed, bgp_dump_state);
+}