| /* |
| * (C) 2010 by Harald Welte <laforge@gnumonks.org> |
| * (C) 2010 by On-Waves |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Affero General Public License as published by |
| * the Free Software Foundation; either version 3 of the License, or |
| * (at your option) any later version. |
| * |
| * This program 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 Affero General Public License for more details. |
| * |
| * You should have received a copy of the GNU Affero General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| */ |
| |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| #include <string.h> |
| #include <time.h> |
| |
| #include <osmocom/core/talloc.h> |
| #include <osmocom/core/rate_ctr.h> |
| |
| #include <openbsc/gsm_04_08.h> |
| #include <osmocom/gprs/gprs_ns.h> |
| |
| #include <openbsc/debug.h> |
| #include <openbsc/gb_proxy.h> |
| #include <openbsc/gprs_utils.h> |
| #include <openbsc/vty.h> |
| |
| #include <osmocom/vty/command.h> |
| #include <osmocom/vty/vty.h> |
| #include <osmocom/vty/misc.h> |
| |
| static struct gbproxy_config *g_cfg = NULL; |
| |
| /* |
| * vty code for mgcp below |
| */ |
| static struct cmd_node gbproxy_node = { |
| GBPROXY_NODE, |
| "%s(config-gbproxy)# ", |
| 1, |
| }; |
| |
| static const struct value_string keep_modes[] = { |
| {GBPROX_KEEP_NEVER, "never"}, |
| {GBPROX_KEEP_REATTACH, "re-attach"}, |
| {GBPROX_KEEP_IDENTIFIED, "identified"}, |
| {GBPROX_KEEP_ALWAYS, "always"}, |
| {0, NULL} |
| }; |
| |
| static const struct value_string match_ids[] = { |
| {GBPROX_MATCH_PATCHING, "patching"}, |
| {GBPROX_MATCH_ROUTING, "routing"}, |
| {0, NULL} |
| }; |
| |
| static void gbprox_vty_print_peer(struct vty *vty, struct gbproxy_peer *peer) |
| { |
| struct gprs_ra_id raid; |
| gsm48_parse_ra(&raid, peer->ra); |
| |
| vty_out(vty, "NSEI %5u, PTP-BVCI %5u, " |
| "RAI %u-%u-%u-%u", |
| peer->nsei, peer->bvci, |
| raid.mcc, raid.mnc, raid.lac, raid.rac); |
| if (peer->blocked) |
| vty_out(vty, " [BVC-BLOCKED]"); |
| |
| vty_out(vty, "%s", VTY_NEWLINE); |
| } |
| |
| static int config_write_gbproxy(struct vty *vty) |
| { |
| enum gbproxy_match_id match_id; |
| |
| vty_out(vty, "gbproxy%s", VTY_NEWLINE); |
| |
| vty_out(vty, " sgsn nsei %u%s", g_cfg->nsip_sgsn_nsei, |
| VTY_NEWLINE); |
| |
| if (g_cfg->core_mcc > 0) |
| vty_out(vty, " core-mobile-country-code %d%s", |
| g_cfg->core_mcc, VTY_NEWLINE); |
| if (g_cfg->core_mnc > 0) |
| vty_out(vty, " core-mobile-network-code %d%s", |
| g_cfg->core_mnc, VTY_NEWLINE); |
| |
| for (match_id = 0; match_id < ARRAY_SIZE(g_cfg->matches); ++match_id) { |
| struct gbproxy_match *match = &g_cfg->matches[match_id]; |
| if (match->re_str) |
| vty_out(vty, " match-imsi %s %s%s", |
| get_value_string(match_ids, match_id), |
| match->re_str, VTY_NEWLINE); |
| } |
| |
| if (g_cfg->core_apn != NULL) { |
| if (g_cfg->core_apn_size > 0) { |
| char str[500] = {0}; |
| vty_out(vty, " core-access-point-name %s%s", |
| gprs_apn_to_str(str, g_cfg->core_apn, |
| g_cfg->core_apn_size), |
| VTY_NEWLINE); |
| } else { |
| vty_out(vty, " core-access-point-name none%s", |
| VTY_NEWLINE); |
| } |
| } |
| |
| if (g_cfg->route_to_sgsn2) |
| vty_out(vty, " secondary-sgsn nsei %u%s", g_cfg->nsip_sgsn2_nsei, |
| VTY_NEWLINE); |
| |
| if (g_cfg->tlli_max_age > 0) |
| vty_out(vty, " link-list max-age %d%s", |
| g_cfg->tlli_max_age, VTY_NEWLINE); |
| if (g_cfg->tlli_max_len > 0) |
| vty_out(vty, " link-list max-length %d%s", |
| g_cfg->tlli_max_len, VTY_NEWLINE); |
| vty_out(vty, " link-list keep-mode %s%s", |
| get_value_string(keep_modes, g_cfg->keep_link_infos), |
| VTY_NEWLINE); |
| |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy, |
| cfg_gbproxy_cmd, |
| "gbproxy", |
| "Configure the Gb proxy") |
| { |
| vty->node = GBPROXY_NODE; |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_nsip_sgsn_nsei, |
| cfg_nsip_sgsn_nsei_cmd, |
| "sgsn nsei <0-65534>", |
| "SGSN information\n" |
| "NSEI to be used in the connection with the SGSN\n" |
| "The NSEI\n") |
| { |
| unsigned int nsei = atoi(argv[0]); |
| |
| if (g_cfg->route_to_sgsn2 && g_cfg->nsip_sgsn2_nsei == nsei) { |
| vty_out(vty, "SGSN NSEI %d conflicts with secondary SGSN NSEI%s", |
| nsei, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| g_cfg->nsip_sgsn_nsei = nsei; |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_CORE_MNC_STR "Use this network code for the core network\n" |
| |
| DEFUN(cfg_gbproxy_core_mnc, |
| cfg_gbproxy_core_mnc_cmd, |
| "core-mobile-network-code <1-999>", |
| GBPROXY_CORE_MNC_STR "NCC value\n") |
| { |
| g_cfg->core_mnc = atoi(argv[0]); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_no_core_mnc, |
| cfg_gbproxy_no_core_mnc_cmd, |
| "no core-mobile-network-code", |
| NO_STR GBPROXY_CORE_MNC_STR) |
| { |
| g_cfg->core_mnc = 0; |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_CORE_MCC_STR "Use this country code for the core network\n" |
| |
| DEFUN(cfg_gbproxy_core_mcc, |
| cfg_gbproxy_core_mcc_cmd, |
| "core-mobile-country-code <1-999>", |
| GBPROXY_CORE_MCC_STR "MCC value\n") |
| { |
| g_cfg->core_mcc = atoi(argv[0]); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_no_core_mcc, |
| cfg_gbproxy_no_core_mcc_cmd, |
| "no core-mobile-country-code", |
| NO_STR GBPROXY_CORE_MCC_STR) |
| { |
| g_cfg->core_mcc = 0; |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_MATCH_IMSI_STR "Restrict actions to certain IMSIs\n" |
| |
| DEFUN(cfg_gbproxy_match_imsi, |
| cfg_gbproxy_match_imsi_cmd, |
| "match-imsi (patching|routing) .REGEXP", |
| GBPROXY_MATCH_IMSI_STR |
| "Patch MS related information elements on match only\n" |
| "Route to the secondary SGSN on match only\n" |
| "Regular expression for the IMSI match\n") |
| { |
| const char *filter = argv[1]; |
| const char *err_msg = NULL; |
| struct gbproxy_match *match; |
| enum gbproxy_match_id match_id = get_string_value(match_ids, argv[0]); |
| |
| OSMO_ASSERT(match_id >= GBPROX_MATCH_PATCHING && |
| match_id < GBPROX_MATCH_LAST); |
| match = &g_cfg->matches[match_id]; |
| |
| if (gbproxy_set_patch_filter(match, filter, &err_msg) != 0) { |
| vty_out(vty, "Match expression invalid: %s%s", |
| err_msg, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| g_cfg->acquire_imsi = 1; |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_no_match_imsi, |
| cfg_gbproxy_no_match_imsi_cmd, |
| "no match-imsi", |
| NO_STR GBPROXY_MATCH_IMSI_STR) |
| { |
| enum gbproxy_match_id match_id; |
| |
| for (match_id = 0; match_id < ARRAY_SIZE(g_cfg->matches); ++match_id) |
| gbproxy_clear_patch_filter(&g_cfg->matches[match_id]); |
| |
| g_cfg->acquire_imsi = 0; |
| |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_CORE_APN_STR "Use this access point name (APN) for the backbone\n" |
| #define GBPROXY_CORE_APN_ARG_STR "Replace APN by this string\n" "Remove APN\n" |
| |
| static int set_core_apn(struct vty *vty, const char *apn) |
| { |
| int apn_len; |
| |
| if (!apn) { |
| talloc_free(g_cfg->core_apn); |
| g_cfg->core_apn = NULL; |
| g_cfg->core_apn_size = 0; |
| return CMD_SUCCESS; |
| } |
| |
| apn_len = strlen(apn); |
| |
| if (apn_len >= 100) { |
| vty_out(vty, "APN string too long (max 99 chars)%s", |
| VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| if (apn_len == 0) { |
| talloc_free(g_cfg->core_apn); |
| /* TODO: replace NULL */ |
| g_cfg->core_apn = talloc_zero_size(NULL, 2); |
| g_cfg->core_apn_size = 0; |
| } else { |
| /* TODO: replace NULL */ |
| g_cfg->core_apn = |
| talloc_realloc_size(NULL, g_cfg->core_apn, apn_len + 1); |
| g_cfg->core_apn_size = |
| gprs_str_to_apn(g_cfg->core_apn, apn_len + 1, apn); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_core_apn, |
| cfg_gbproxy_core_apn_cmd, |
| "core-access-point-name (APN|none)", |
| GBPROXY_CORE_APN_STR GBPROXY_CORE_APN_ARG_STR) |
| { |
| if (strcmp(argv[0], "none") == 0) |
| return set_core_apn(vty, ""); |
| else |
| return set_core_apn(vty, argv[0]); |
| } |
| |
| DEFUN(cfg_gbproxy_no_core_apn, |
| cfg_gbproxy_no_core_apn_cmd, |
| "no core-access-point-name", |
| NO_STR GBPROXY_CORE_APN_STR) |
| { |
| return set_core_apn(vty, NULL); |
| } |
| |
| /* TODO: Remove the patch-ptmsi command, since P-TMSI patching is enabled |
| * automatically when needed. This command is only left for manual testing |
| * (e.g. doing P-TMSI patching without using a secondary SGSN) |
| */ |
| #define GBPROXY_PATCH_PTMSI_STR "Patch P-TMSI/TLLI\n" |
| |
| DEFUN(cfg_gbproxy_patch_ptmsi, |
| cfg_gbproxy_patch_ptmsi_cmd, |
| "patch-ptmsi", |
| GBPROXY_PATCH_PTMSI_STR) |
| { |
| g_cfg->patch_ptmsi = 1; |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_no_patch_ptmsi, |
| cfg_gbproxy_no_patch_ptmsi_cmd, |
| "no patch-ptmsi", |
| NO_STR GBPROXY_PATCH_PTMSI_STR) |
| { |
| g_cfg->patch_ptmsi = 0; |
| |
| return CMD_SUCCESS; |
| } |
| |
| /* TODO: Remove the acquire-imsi command, since that feature is enabled |
| * automatically when IMSI matching is enabled. This command is only left for |
| * manual testing (e.g. doing IMSI acquisition without IMSI based patching) |
| */ |
| #define GBPROXY_ACQUIRE_IMSI_STR "Acquire the IMSI before establishing a LLC connection (Experimental)\n" |
| |
| DEFUN(cfg_gbproxy_acquire_imsi, |
| cfg_gbproxy_acquire_imsi_cmd, |
| "acquire-imsi", |
| GBPROXY_ACQUIRE_IMSI_STR) |
| { |
| g_cfg->acquire_imsi = 1; |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_no_acquire_imsi, |
| cfg_gbproxy_no_acquire_imsi_cmd, |
| "no acquire-imsi", |
| NO_STR GBPROXY_ACQUIRE_IMSI_STR) |
| { |
| g_cfg->acquire_imsi = 0; |
| |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_SECOND_SGSN_STR "Route matching LLC connections to a second SGSN (Experimental)\n" |
| |
| DEFUN(cfg_gbproxy_secondary_sgsn, |
| cfg_gbproxy_secondary_sgsn_cmd, |
| "secondary-sgsn nsei <0-65534>", |
| GBPROXY_SECOND_SGSN_STR |
| "NSEI to be used in the connection with the SGSN\n" |
| "The NSEI\n") |
| { |
| unsigned int nsei = atoi(argv[0]); |
| |
| if (g_cfg->nsip_sgsn_nsei == nsei) { |
| vty_out(vty, "Secondary SGSN NSEI %d conflicts with primary SGSN NSEI%s", |
| nsei, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| g_cfg->route_to_sgsn2 = 1; |
| g_cfg->nsip_sgsn2_nsei = nsei; |
| |
| g_cfg->patch_ptmsi = 1; |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_no_secondary_sgsn, |
| cfg_gbproxy_no_secondary_sgsn_cmd, |
| "no secondary-sgsn", |
| NO_STR GBPROXY_SECOND_SGSN_STR) |
| { |
| g_cfg->route_to_sgsn2 = 0; |
| g_cfg->nsip_sgsn2_nsei = 0xFFFF; |
| |
| g_cfg->patch_ptmsi = 0; |
| |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_LINK_LIST_STR "Set TLLI list parameters\n" |
| #define GBPROXY_MAX_AGE_STR "Limit maximum age\n" |
| |
| DEFUN(cfg_gbproxy_link_list_max_age, |
| cfg_gbproxy_link_list_max_age_cmd, |
| "link-list max-age <1-999999>", |
| GBPROXY_LINK_LIST_STR GBPROXY_MAX_AGE_STR |
| "Maximum age in seconds\n") |
| { |
| g_cfg->tlli_max_age = atoi(argv[0]); |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_link_list_no_max_age, |
| cfg_gbproxy_link_list_no_max_age_cmd, |
| "no link-list max-age", |
| NO_STR GBPROXY_LINK_LIST_STR GBPROXY_MAX_AGE_STR) |
| { |
| g_cfg->tlli_max_age = 0; |
| |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_MAX_LEN_STR "Limit list length\n" |
| |
| DEFUN(cfg_gbproxy_link_list_max_len, |
| cfg_gbproxy_link_list_max_len_cmd, |
| "link-list max-length <1-99999>", |
| GBPROXY_LINK_LIST_STR GBPROXY_MAX_LEN_STR |
| "Maximum number of logical links in the list\n") |
| { |
| g_cfg->tlli_max_len = atoi(argv[0]); |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_link_list_no_max_len, |
| cfg_gbproxy_link_list_no_max_len_cmd, |
| "no link-list max-length", |
| NO_STR GBPROXY_LINK_LIST_STR GBPROXY_MAX_LEN_STR) |
| { |
| g_cfg->tlli_max_len = 0; |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy_link_list_keep_mode, |
| cfg_gbproxy_link_list_keep_mode_cmd, |
| "link-list keep-mode (never|re-attach|identified|always)", |
| GBPROXY_LINK_LIST_STR "How to keep entries for detached logical links\n" |
| "Discard entry immediately after detachment\n" |
| "Keep entry if a re-attachment has be requested\n" |
| "Keep entry if it associated with an IMSI\n" |
| "Don't discard entries after detachment\n") |
| { |
| int val = get_string_value(keep_modes, argv[0]); |
| OSMO_ASSERT(val >= GBPROX_KEEP_NEVER && val <= GBPROX_KEEP_ALWAYS); |
| g_cfg->keep_link_infos = val; |
| |
| return CMD_SUCCESS; |
| } |
| |
| |
| DEFUN(show_gbproxy, show_gbproxy_cmd, "show gbproxy [stats]", |
| SHOW_STR "Display information about the Gb proxy\n" "Show statistics\n") |
| { |
| struct gbproxy_peer *peer; |
| int show_stats = argc >= 1; |
| |
| if (show_stats) |
| vty_out_rate_ctr_group(vty, "", g_cfg->ctrg); |
| |
| llist_for_each_entry(peer, &g_cfg->bts_peers, list) { |
| gbprox_vty_print_peer(vty, peer); |
| |
| if (show_stats) |
| vty_out_rate_ctr_group(vty, " ", peer->ctrg); |
| } |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_gbproxy_links, show_gbproxy_links_cmd, "show gbproxy links", |
| SHOW_STR "Display information about the Gb proxy\n" "Show logical links\n") |
| { |
| struct gbproxy_peer *peer; |
| char mi_buf[200]; |
| time_t now; |
| struct timespec ts = {0,}; |
| |
| clock_gettime(CLOCK_MONOTONIC, &ts); |
| now = ts.tv_sec; |
| |
| llist_for_each_entry(peer, &g_cfg->bts_peers, list) { |
| struct gbproxy_link_info *link_info; |
| struct gbproxy_patch_state *state = &peer->patch_state; |
| |
| gbprox_vty_print_peer(vty, peer); |
| |
| llist_for_each_entry(link_info, &state->logical_links, list) { |
| time_t age = now - link_info->timestamp; |
| int stored_msgs = 0; |
| struct llist_head *iter; |
| llist_for_each(iter, &link_info->stored_msgs) |
| stored_msgs++; |
| |
| if (link_info->imsi > 0) { |
| snprintf(mi_buf, sizeof(mi_buf), "(invalid)"); |
| gsm48_mi_to_string(mi_buf, sizeof(mi_buf), |
| link_info->imsi, |
| link_info->imsi_len); |
| } else { |
| snprintf(mi_buf, sizeof(mi_buf), "(none)"); |
| } |
| vty_out(vty, " TLLI %08x, IMSI %s, AGE %d", |
| link_info->tlli.current, mi_buf, (int)age); |
| |
| if (stored_msgs) |
| vty_out(vty, ", STORED %d", stored_msgs); |
| |
| if (g_cfg->route_to_sgsn2) |
| vty_out(vty, ", SGSN NSEI %d", |
| link_info->sgsn_nsei); |
| |
| if (link_info->is_deregistered) |
| vty_out(vty, ", DE-REGISTERED"); |
| |
| vty_out(vty, "%s", VTY_NEWLINE); |
| } |
| } |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(delete_gb_bvci, delete_gb_bvci_cmd, |
| "delete-gbproxy-peer <0-65534> bvci <2-65534>", |
| "Delete a GBProxy peer by NSEI and optionally BVCI\n" |
| "NSEI number\n" |
| "Only delete peer with a matching BVCI\n" |
| "BVCI number\n") |
| { |
| const uint16_t nsei = atoi(argv[0]); |
| const uint16_t bvci = atoi(argv[1]); |
| int counter; |
| |
| counter = gbproxy_cleanup_peers(g_cfg, nsei, bvci); |
| |
| if (counter == 0) { |
| vty_out(vty, "BVC not found%s", VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(delete_gb_nsei, delete_gb_nsei_cmd, |
| "delete-gbproxy-peer <0-65534> (only-bvc|only-nsvc|all) [dry-run]", |
| "Delete a GBProxy peer by NSEI and optionally BVCI\n" |
| "NSEI number\n" |
| "Only delete BSSGP connections (BVC)\n" |
| "Only delete dynamic NS connections (NS-VC)\n" |
| "Delete BVC and dynamic NS connections\n" |
| "Show what would be deleted instead of actually deleting\n" |
| ) |
| { |
| const uint16_t nsei = atoi(argv[0]); |
| const char *mode = argv[1]; |
| int dry_run = argc > 2; |
| int delete_bvc = 0; |
| int delete_nsvc = 0; |
| int counter; |
| |
| if (strcmp(mode, "only-bvc") == 0) |
| delete_bvc = 1; |
| else if (strcmp(mode, "only-nsvc") == 0) |
| delete_nsvc = 1; |
| else |
| delete_bvc = delete_nsvc = 1; |
| |
| if (delete_bvc) { |
| if (!dry_run) |
| counter = gbproxy_cleanup_peers(g_cfg, nsei, 0); |
| else { |
| struct gbproxy_peer *peer; |
| counter = 0; |
| llist_for_each_entry(peer, &g_cfg->bts_peers, list) { |
| if (peer->nsei != nsei) |
| continue; |
| |
| vty_out(vty, "BVC: "); |
| gbprox_vty_print_peer(vty, peer); |
| counter += 1; |
| } |
| } |
| vty_out(vty, "%sDeleted %d BVC%s", |
| dry_run ? "Not " : "", counter, VTY_NEWLINE); |
| } |
| |
| if (delete_nsvc) { |
| struct gprs_ns_inst *nsi = g_cfg->nsi; |
| struct gprs_nsvc *nsvc, *nsvc2; |
| |
| counter = 0; |
| llist_for_each_entry_safe(nsvc, nsvc2, &nsi->gprs_nsvcs, list) { |
| if (nsvc->nsei != nsei) |
| continue; |
| if (nsvc->persistent) |
| continue; |
| |
| if (!dry_run) |
| gprs_nsvc_delete(nsvc); |
| else |
| vty_out(vty, "NS-VC: NSEI %5u, NS-VCI %5u, " |
| "remote %s%s", |
| nsvc->nsei, nsvc->nsvci, |
| gprs_ns_ll_str(nsvc), VTY_NEWLINE); |
| counter += 1; |
| } |
| vty_out(vty, "%sDeleted %d NS-VC%s", |
| dry_run ? "Not " : "", counter, VTY_NEWLINE); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| #define GBPROXY_DELETE_LINK_STR \ |
| "Delete a GBProxy logical link entry by NSEI and identification\nNSEI number\n" |
| |
| DEFUN(delete_gb_link_by_id, delete_gb_link_by_id_cmd, |
| "delete-gbproxy-link <0-65534> (tlli|imsi|sgsn-nsei) IDENT", |
| GBPROXY_DELETE_LINK_STR |
| "Delete entries with a matching TLLI (hex)\n" |
| "Delete entries with a matching IMSI\n" |
| "Identification to match\n") |
| { |
| const uint16_t nsei = atoi(argv[0]); |
| enum {MATCH_TLLI = 't', MATCH_IMSI = 'i', MATCH_SGSN = 's'} match; |
| uint32_t ident = 0; |
| const char *imsi = NULL; |
| struct gbproxy_peer *peer = 0; |
| struct gbproxy_link_info *link_info, *nxt; |
| struct gbproxy_patch_state *state; |
| char mi_buf[200]; |
| int found = 0; |
| |
| match = argv[1][0]; |
| |
| switch (match) { |
| case MATCH_TLLI: ident = strtoll(argv[2], NULL, 16); break; |
| case MATCH_IMSI: imsi = argv[2]; break; |
| case MATCH_SGSN: ident = strtoll(argv[2], NULL, 0); break; |
| }; |
| |
| peer = gbproxy_peer_by_nsei(g_cfg, nsei); |
| if (!peer) { |
| vty_out(vty, "Didn't find peer with NSEI %d%s", |
| nsei, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| state = &peer->patch_state; |
| |
| llist_for_each_entry_safe(link_info, nxt, &state->logical_links, list) { |
| switch (match) { |
| case MATCH_TLLI: |
| if (link_info->tlli.current != ident) |
| continue; |
| break; |
| case MATCH_SGSN: |
| if (link_info->sgsn_nsei != ident) |
| continue; |
| break; |
| case MATCH_IMSI: |
| if (!link_info->imsi) |
| continue; |
| mi_buf[0] = '\0'; |
| gsm48_mi_to_string(mi_buf, sizeof(mi_buf), |
| link_info->imsi, |
| link_info->imsi_len); |
| |
| if (strcmp(mi_buf, imsi) != 0) |
| continue; |
| break; |
| } |
| |
| vty_out(vty, "Deleting link with TLLI %08x%s", link_info->tlli.current, |
| VTY_NEWLINE); |
| gbproxy_delete_link_info(peer, link_info); |
| found += 1; |
| } |
| |
| if (!found && argc >= 2) { |
| vty_out(vty, "Didn't find link entry with %s %s%s", |
| argv[1], argv[2], VTY_NEWLINE); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(delete_gb_link, delete_gb_link_cmd, |
| "delete-gbproxy-link <0-65534> (stale|de-registered)", |
| GBPROXY_DELETE_LINK_STR |
| "Delete stale entries\n" |
| "Delete de-registered entries\n") |
| { |
| const uint16_t nsei = atoi(argv[0]); |
| enum {MATCH_STALE = 's', MATCH_DEREGISTERED = 'd'} match; |
| struct gbproxy_peer *peer = 0; |
| struct gbproxy_link_info *link_info, *nxt; |
| struct gbproxy_patch_state *state; |
| time_t now; |
| struct timespec ts = {0,}; |
| |
| int found = 0; |
| |
| match = argv[1][0]; |
| |
| peer = gbproxy_peer_by_nsei(g_cfg, nsei); |
| if (!peer) { |
| vty_out(vty, "Didn't find peer with NSEI %d%s", |
| nsei, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| state = &peer->patch_state; |
| |
| clock_gettime(CLOCK_MONOTONIC, &ts); |
| now = ts.tv_sec; |
| |
| if (match == MATCH_STALE) { |
| found = gbproxy_remove_stale_link_infos(peer, now); |
| if (found) |
| vty_out(vty, "Deleted %d stale logical link%s%s", |
| found, found == 1 ? "" : "s", VTY_NEWLINE); |
| } else { |
| llist_for_each_entry_safe(link_info, nxt, |
| &state->logical_links, list) { |
| if (!link_info->is_deregistered) |
| continue; |
| |
| gbproxy_delete_link_info(peer, link_info); |
| found += 1; |
| } |
| } |
| |
| if (found) |
| vty_out(vty, "Deleted %d %s logical link%s%s", |
| found, argv[1], found == 1 ? "" : "s", VTY_NEWLINE); |
| |
| return CMD_SUCCESS; |
| } |
| |
| int gbproxy_vty_init(void) |
| { |
| install_element_ve(&show_gbproxy_cmd); |
| install_element_ve(&show_gbproxy_links_cmd); |
| |
| install_element(ENABLE_NODE, &delete_gb_bvci_cmd); |
| install_element(ENABLE_NODE, &delete_gb_nsei_cmd); |
| install_element(ENABLE_NODE, &delete_gb_link_by_id_cmd); |
| install_element(ENABLE_NODE, &delete_gb_link_cmd); |
| |
| install_element(CONFIG_NODE, &cfg_gbproxy_cmd); |
| install_node(&gbproxy_node, config_write_gbproxy); |
| vty_install_default(GBPROXY_NODE); |
| install_element(GBPROXY_NODE, &cfg_nsip_sgsn_nsei_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_core_mcc_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_core_mnc_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_match_imsi_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_core_apn_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_secondary_sgsn_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_patch_ptmsi_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_acquire_imsi_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_link_list_max_age_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_link_list_max_len_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_link_list_keep_mode_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_no_core_mcc_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_no_core_mnc_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_no_match_imsi_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_no_core_apn_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_no_secondary_sgsn_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_no_patch_ptmsi_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_no_acquire_imsi_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_link_list_no_max_age_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_link_list_no_max_len_cmd); |
| |
| return 0; |
| } |
| |
| int gbproxy_parse_config(const char *config_file, struct gbproxy_config *cfg) |
| { |
| int rc; |
| |
| g_cfg = cfg; |
| rc = vty_read_config_file(config_file, NULL); |
| if (rc < 0) { |
| fprintf(stderr, "Failed to parse the config file: '%s'\n", config_file); |
| return rc; |
| } |
| |
| return 0; |
| } |
| |