| /* |
| * (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 <inttypes.h> |
| |
| #include <osmocom/core/hashtable.h> |
| #include <osmocom/core/talloc.h> |
| #include <osmocom/core/timer.h> |
| #include <osmocom/core/rate_ctr.h> |
| #include <osmocom/core/utils.h> |
| |
| #include <osmocom/gprs/gprs_ns2.h> |
| #include <osmocom/gprs/bssgp_bvc_fsm.h> |
| |
| #include <osmocom/gsm/apn.h> |
| #include <osmocom/gsm/gsm23236.h> |
| #include <osmocom/gsm/gsm48.h> |
| |
| #include "debug.h" |
| #include <osmocom/sgsn/gb_proxy.h> |
| #include "vty.h" |
| |
| #include <osmocom/vty/command.h> |
| #include <osmocom/vty/logging.h> |
| #include <osmocom/vty/vty.h> |
| #include <osmocom/vty/misc.h> |
| |
| #define GBPROXY_STR "Display information about the Gb proxy\n" |
| #define NRI_STR "Mapping of Network Resource Indicators to this SGSN, for SGSN pooling\n" |
| #define NULL_NRI_STR "Define NULL-NRI values that cause re-assignment of an MS to a different SGSN, for SGSN pooling.\n" |
| #define NRI_FIRST_LAST_STR "First value of the NRI value range, should not surpass the configured 'nri bitlen'.\n" \ |
| "Last value of the NRI value range, should not surpass the configured 'nri bitlen' and be larger than the" \ |
| " first value; if omitted, apply only the first value.\n" |
| #define NRI_ARGS_TO_STR_FMT "%s%s%s" |
| #define NRI_ARGS_TO_STR_ARGS(ARGC, ARGV) ARGV[0], (ARGC>1)? ".." : "", (ARGC>1)? ARGV[1] : "" |
| #define NRI_WARN(SGSN, FORMAT, args...) do { \ |
| vty_out(vty, "%% Warning: NSE(%05d/SGSN): " FORMAT "%s", (SGSN)->nse->nsei, ##args, VTY_NEWLINE); \ |
| LOGP(DLBSSGP, LOGL_ERROR, "NSE(%05d/SGSN): " FORMAT "\n", (SGSN)->nse->nsei, ##args); \ |
| } while (0) |
| |
| static struct gbproxy_config *g_cfg = NULL; |
| |
| /* |
| * vty code for gbproxy below |
| */ |
| static struct cmd_node gbproxy_node = { |
| GBPROXY_NODE, |
| "%s(config-gbproxy)# ", |
| 1, |
| }; |
| |
| static void gbprox_vty_print_bvc(struct vty *vty, struct gbproxy_bvc *bvc) |
| { |
| |
| if (bvc->bvci == 0) { |
| vty_out(vty, "NSEI %5u, SIG-BVCI %5u [%s]%s", bvc->nse->nsei, bvc->bvci, |
| osmo_fsm_inst_state_name(bvc->fi), VTY_NEWLINE); |
| } else { |
| vty_out(vty, "NSEI %5u, PTP-BVCI %5u, RAI %s [%s]%s", bvc->nse->nsei, bvc->bvci, |
| osmo_rai_name(&bvc->cell->id.raid), osmo_fsm_inst_state_name(bvc->fi), VTY_NEWLINE); |
| } |
| } |
| |
| static void gbproxy_vty_print_nse(struct vty *vty, struct gbproxy_nse *nse, bool show_stats) |
| { |
| struct gbproxy_bvc *bvc; |
| int j; |
| |
| hash_for_each(nse->bvcs, j, bvc, list) { |
| gbprox_vty_print_bvc(vty, bvc); |
| |
| if (show_stats) |
| vty_out_rate_ctr_group(vty, " ", bvc->ctrg); |
| } |
| } |
| |
| static void gbproxy_vty_print_cell(struct vty *vty, struct gbproxy_cell *cell, bool show_stats) |
| { |
| unsigned int num_sgsn_bvc = 0; |
| unsigned int i; |
| |
| vty_out(vty, "BVCI %5u RAI %s CID %05u: ", cell->bvci, osmo_rai_name(&cell->id.raid), cell->id.cid); |
| if (cell->bss_bvc) |
| vty_out(vty, "BSS NSEI %5u, SGSN NSEI ", cell->bss_bvc->nse->nsei); |
| else |
| vty_out(vty, "BSS NSEI <none>, SGSN NSEI "); |
| |
| for (i = 0; i < ARRAY_SIZE(cell->sgsn_bvc); i++) { |
| struct gbproxy_bvc *sgsn_bvc = cell->sgsn_bvc[i]; |
| if (sgsn_bvc) { |
| vty_out(vty, "%5u ", sgsn_bvc->nse->nsei); |
| num_sgsn_bvc++; |
| } |
| } |
| if (num_sgsn_bvc) |
| vty_out(vty, "%s", VTY_NEWLINE); |
| else |
| vty_out(vty, "<none>%s", VTY_NEWLINE); |
| } |
| |
| static int config_write_gbproxy(struct vty *vty) |
| { |
| struct osmo_nri_range *r; |
| |
| vty_out(vty, "gbproxy%s", VTY_NEWLINE); |
| |
| if (g_cfg->pool.bvc_fc_ratio != 100) |
| vty_out(vty, " pool bvc-flow-control-ratio %u%s", g_cfg->pool.bvc_fc_ratio, VTY_NEWLINE); |
| |
| if (g_cfg->pool.nri_bitlen != OSMO_NRI_BITLEN_DEFAULT) |
| vty_out(vty, " nri bitlen %u%s", g_cfg->pool.nri_bitlen, VTY_NEWLINE); |
| |
| llist_for_each_entry(r, &g_cfg->pool.null_nri_ranges->entries, entry) { |
| vty_out(vty, " nri null add %d", r->first); |
| if (r->first != r->last) |
| vty_out(vty, " %d", r->last); |
| vty_out(vty, "%s", VTY_NEWLINE); |
| } |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_gbproxy, |
| cfg_gbproxy_cmd, |
| "gbproxy", |
| "Configure the Gb proxy") |
| { |
| vty->node = GBPROXY_NODE; |
| return CMD_SUCCESS; |
| } |
| |
| /* VTY code for SGSN (pool) configuration */ |
| extern const struct bssgp_bvc_fsm_ops sgsn_sig_bvc_fsm_ops; |
| #include <osmocom/gprs/protocol/gsm_08_18.h> |
| |
| static struct cmd_node sgsn_node = { |
| SGSN_NODE, |
| "%s(config-sgsn)# ", |
| 1, |
| }; |
| |
| static void sgsn_write_nri(struct vty *vty, struct gbproxy_sgsn *sgsn, bool verbose) |
| { |
| struct osmo_nri_range *r; |
| |
| if (verbose) { |
| vty_out(vty, "sgsn nsei %d%s", sgsn->nse->nsei, VTY_NEWLINE); |
| if (llist_empty(&sgsn->pool.nri_ranges->entries)) { |
| vty_out(vty, " %% no NRI mappings%s", VTY_NEWLINE); |
| return; |
| } |
| } |
| |
| llist_for_each_entry(r, &sgsn->pool.nri_ranges->entries, entry) { |
| if (osmo_nri_range_validate(r, 255)) |
| vty_out(vty, " %% INVALID RANGE:"); |
| vty_out(vty, " nri add %d", r->first); |
| if (r->first != r->last) |
| vty_out(vty, " %d", r->last); |
| vty_out(vty, "%s", VTY_NEWLINE); |
| } |
| } |
| |
| static void write_sgsn(struct vty *vty, struct gbproxy_sgsn *sgsn) |
| { |
| vty_out(vty, "sgsn nsei %u%s", sgsn->nse->nsei, VTY_NEWLINE); |
| vty_out(vty, " name %s%s", sgsn->name, VTY_NEWLINE); |
| vty_out(vty, " %sallow-attach%s", sgsn->pool.allow_attach ? "" : "no ", VTY_NEWLINE); |
| sgsn_write_nri(vty, sgsn, false); |
| } |
| |
| static int config_write_sgsn(struct vty *vty) |
| { |
| struct gbproxy_sgsn *sgsn; |
| |
| llist_for_each_entry(sgsn, &g_cfg->sgsns, list) |
| write_sgsn(vty, sgsn); |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_sgsn_nsei, |
| cfg_sgsn_nsei_cmd, |
| "sgsn nsei <0-65534>", |
| "Configure the SGSN\n" |
| "NSEI to be used in the connection with the SGSN\n" |
| "The NSEI\n") |
| { |
| uint32_t features = 0; // FIXME: make configurable |
| unsigned int nsei = atoi(argv[0]); |
| unsigned int num_sgsn = llist_count(&g_cfg->sgsns); |
| struct gbproxy_sgsn *sgsn; |
| struct gbproxy_nse *nse; |
| struct gbproxy_bvc *bvc; |
| |
| if (num_sgsn >= GBPROXY_MAX_NR_SGSN) { |
| vty_out(vty, "%% Too many SGSN NSE defined (%d), increase GBPROXY_MAX_NR_SGSN%s", |
| num_sgsn, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| /* This will have created the gbproxy_nse as well */ |
| sgsn = gbproxy_sgsn_by_nsei_or_new(g_cfg, nsei); |
| if (!sgsn) |
| goto free_nothing; |
| nse = sgsn->nse; |
| if (num_sgsn > 1 && g_cfg->pool.nri_bitlen == 0) |
| vty_out(vty, "%% Multiple SGSNs defined, but no pooling enabled%s", VTY_NEWLINE); |
| |
| |
| if (!gbproxy_bvc_by_bvci(nse, 0)) { |
| uint8_t cause = BSSGP_CAUSE_OML_INTERV; |
| bvc = gbproxy_bvc_alloc(nse, 0); |
| if (!bvc) |
| goto free_sgsn; |
| bvc->fi = bssgp_bvc_fsm_alloc_sig_bss(bvc, nse->cfg->nsi, nsei, features); |
| if (!bvc->fi) |
| goto free_bvc; |
| bssgp_bvc_fsm_set_ops(bvc->fi, &sgsn_sig_bvc_fsm_ops, bvc); |
| osmo_fsm_inst_dispatch(bvc->fi, BSSGP_BVCFSM_E_REQ_RESET, &cause); |
| } |
| |
| vty->node = SGSN_NODE; |
| vty->index = sgsn; |
| return CMD_SUCCESS; |
| |
| free_bvc: |
| gbproxy_bvc_free(bvc); |
| free_sgsn: |
| gbproxy_sgsn_free(sgsn); |
| free_nothing: |
| vty_out(vty, "%% Unable to create NSE for NSEI=%05u%s", nsei, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| DEFUN(cfg_sgsn_name, |
| cfg_sgsn_name_cmd, |
| "name NAME", |
| "Configure the SGSN\n" |
| "Name the SGSN\n" |
| "The name\n") |
| { |
| struct gbproxy_sgsn *sgsn = vty->index; |
| const char *name = argv[0]; |
| |
| |
| osmo_talloc_replace_string(sgsn, &sgsn->name, name); |
| if (!sgsn->name) { |
| vty_out(vty, "%% Unable to set name for SGSN with nsei %05u%s", sgsn->nse->nsei, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN_ATTR(cfg_sgsn_nri_add, cfg_sgsn_nri_add_cmd, |
| "nri add <0-32767> [<0-32767>]", |
| NRI_STR "Add NRI value or range to the NRI mapping for this MSC\n" |
| NRI_FIRST_LAST_STR, |
| CMD_ATTR_IMMEDIATE) |
| { |
| struct gbproxy_sgsn *sgsn = vty->index; |
| struct gbproxy_sgsn *other_sgsn; |
| bool before; |
| int rc; |
| const char *message; |
| struct osmo_nri_range add_range; |
| |
| rc = osmo_nri_ranges_vty_add(&message, &add_range, sgsn->pool.nri_ranges, argc, argv, g_cfg->pool.nri_bitlen); |
| if (message) { |
| NRI_WARN(sgsn, "%s: " NRI_ARGS_TO_STR_FMT, message, NRI_ARGS_TO_STR_ARGS(argc, argv)); |
| } |
| if (rc < 0) |
| return CMD_WARNING; |
| |
| /* Issue a warning about NRI range overlaps (but still allow them). |
| * Overlapping ranges will map to whichever SGSN comes fist in the gbproxy_config->sgsns llist, |
| * which should be the first one defined in the config */ |
| before = true; |
| |
| llist_for_each_entry(other_sgsn, &g_cfg->sgsns, list) { |
| if (other_sgsn == sgsn) { |
| before = false; |
| continue; |
| } |
| if (osmo_nri_range_overlaps_ranges(&add_range, other_sgsn->pool.nri_ranges)) { |
| uint16_t nsei = sgsn->nse->nsei; |
| uint16_t other_nsei = other_sgsn->nse->nsei; |
| NRI_WARN(sgsn, "NRI range [%d..%d] overlaps between NSE %05d and NSE %05d." |
| " For overlaps, NSE %05d has higher priority than NSE %05d", |
| add_range.first, add_range.last, nsei, other_nsei, |
| before ? other_nsei : nsei, before ? nsei : other_nsei); |
| } |
| } |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN_ATTR(cfg_sgsn_nri_del, cfg_sgsn_nri_del_cmd, |
| "nri del <0-32767> [<0-32767>]", |
| NRI_STR "Remove NRI value or range from the NRI mapping for this MSC\n" |
| NRI_FIRST_LAST_STR, |
| CMD_ATTR_IMMEDIATE) |
| { |
| struct gbproxy_sgsn *sgsn = vty->index; |
| int rc; |
| const char *message; |
| |
| rc = osmo_nri_ranges_vty_del(&message, NULL, sgsn->pool.nri_ranges, argc, argv); |
| if (message) { |
| NRI_WARN(sgsn, "%s: " NRI_ARGS_TO_STR_FMT, message, NRI_ARGS_TO_STR_ARGS(argc, argv)); |
| } |
| if (rc < 0) |
| return CMD_WARNING; |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN_ATTR(cfg_sgsn_allow_attach, cfg_sgsn_allow_attach_cmd, |
| "allow-attach", |
| "Allow this SGSN to attach new subscribers (default).\n", |
| CMD_ATTR_IMMEDIATE) |
| { |
| struct gbproxy_sgsn *sgsn = vty->index; |
| sgsn->pool.allow_attach = true; |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN_ATTR(cfg_sgsn_no_allow_attach, cfg_sgsn_no_allow_attach_cmd, |
| "no allow-attach", |
| NO_STR |
| "Do not assign new subscribers to this MSC." |
| " Useful if an MSC in an MSC pool is configured to off-load subscribers." |
| " The MSC will still be operational for already IMSI-Attached subscribers," |
| " but the NAS node selection function will skip this MSC for new subscribers\n", |
| CMD_ATTR_IMMEDIATE) |
| { |
| struct gbproxy_sgsn *sgsn = vty->index; |
| sgsn->pool.allow_attach = false; |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(sgsn_show_nri_all, show_nri_all_cmd, |
| "show nri all", |
| SHOW_STR NRI_STR "Show all SGSNs\n") |
| { |
| struct gbproxy_sgsn *sgsn; |
| |
| llist_for_each_entry(sgsn, &g_cfg->sgsns, list) |
| sgsn_write_nri(vty, sgsn, true); |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_nri_nsei, show_nri_nsei_cmd, |
| "show nri nsei <0-65535>", |
| SHOW_STR NRI_STR "Identify SGSN by NSEI\n" |
| "NSEI of the SGSN\n") |
| { |
| struct gbproxy_sgsn *sgsn; |
| int nsei = atoi(argv[0]); |
| |
| sgsn = gbproxy_sgsn_by_nsei(g_cfg, nsei); |
| if (!sgsn) { |
| vty_out(vty, "%% No SGSN with found for NSEI %05d%s", nsei, VTY_NEWLINE); |
| return CMD_SUCCESS; |
| } |
| sgsn_write_nri(vty, sgsn, true); |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_pool_bvc_fc_ratio, |
| cfg_pool_bvc_fc_ratio_cmd, |
| "pool bvc-flow-control-ratio <1-100>", |
| "SGSN Pool related configuration\n" |
| "Ratio of BSS-advertised bucket size + leak rate advertised to each SGSN\n" |
| "Ratio of BSS-advertised bucket size + leak rate advertised to each SGSN (Percent)\n") |
| { |
| g_cfg->pool.bvc_fc_ratio = atoi(argv[0]); |
| return CMD_SUCCESS; |
| } |
| DEFUN_ATTR(cfg_gbproxy_nri_bitlen, |
| cfg_gbproxy_nri_bitlen_cmd, |
| "nri bitlen <0-15>", |
| NRI_STR |
| "Set number of bits that an NRI has, to extract from TMSI identities (always starting just after the TMSI's most significant octet).\n" |
| "bit count (0 disables) pooling)\n", |
| CMD_ATTR_IMMEDIATE) |
| { |
| g_cfg->pool.nri_bitlen = atoi(argv[0]); |
| |
| if (llist_count(&g_cfg->sgsns) > 1 && g_cfg->pool.nri_bitlen == 0) |
| vty_out(vty, "%% Pooling disabled, but multiple SGSNs defined%s", VTY_NEWLINE); |
| |
| /* TODO: Verify all nri ranges and warn on mismatch */ |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN_ATTR(cfg_gbproxy_nri_null_add, |
| cfg_gbproxy_nri_null_add_cmd, |
| "nri null add <0-32767> [<0-32767>]", |
| NRI_STR NULL_NRI_STR "Add NULL-NRI value (or range)\n" |
| NRI_FIRST_LAST_STR, |
| CMD_ATTR_IMMEDIATE) |
| { |
| int rc; |
| const char *message; |
| |
| rc = osmo_nri_ranges_vty_add(&message, NULL, g_cfg->pool.null_nri_ranges, argc, argv, |
| g_cfg->pool.nri_bitlen); |
| if (message) { |
| vty_out(vty, "%% nri null add: %s: " NRI_ARGS_TO_STR_FMT "%s", message, NRI_ARGS_TO_STR_ARGS(argc, argv), |
| VTY_NEWLINE); |
| vty_out(vty, "%s: \n" NRI_ARGS_TO_STR_FMT, message, NRI_ARGS_TO_STR_ARGS(argc, argv)); |
| } |
| if (rc < 0) |
| return CMD_WARNING; |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN_ATTR(cfg_gbproxy_nri_null_del, |
| cfg_gbproxy_nri_null_del_cmd, |
| "nri null del <0-32767> [<0-32767>]", |
| NRI_STR NULL_NRI_STR "Remove NRI value or range from the NRI mapping for this MSC\n" |
| NRI_FIRST_LAST_STR, |
| CMD_ATTR_IMMEDIATE) |
| { |
| int rc; |
| const char *message; |
| rc = osmo_nri_ranges_vty_del(&message, NULL, g_cfg->pool.null_nri_ranges, argc, argv); |
| if (message) { |
| vty_out(vty, "%% %s: " NRI_ARGS_TO_STR_FMT "%s", message, NRI_ARGS_TO_STR_ARGS(argc, argv), |
| VTY_NEWLINE); |
| } |
| if (rc < 0) |
| return CMD_WARNING; |
| return CMD_SUCCESS; |
| } |
| |
| static void log_set_bvc_filter(struct log_target *target, |
| const uint16_t *bvci) |
| { |
| if (bvci) { |
| uintptr_t bvci_filter = *bvci | BVC_LOG_CTX_FLAG; |
| target->filter_map |= (1 << LOG_FLT_GB_BVC); |
| target->filter_data[LOG_FLT_GB_BVC] = (void *)bvci_filter; |
| } else if (target->filter_data[LOG_FLT_GB_BVC]) { |
| target->filter_map = ~(1 << LOG_FLT_GB_BVC); |
| target->filter_data[LOG_FLT_GB_BVC] = NULL; |
| } |
| } |
| |
| DEFUN(logging_fltr_bvc, |
| logging_fltr_bvc_cmd, |
| "logging filter bvc bvci <0-65535>", |
| LOGGING_STR FILTER_STR |
| "Filter based on BSSGP VC\n" |
| "Identify BVC by BVCI\n" |
| "Numeric identifier\n") |
| { |
| struct log_target *tgt; |
| uint16_t id = atoi(argv[0]); |
| |
| log_tgt_mutex_lock(); |
| tgt = osmo_log_vty2tgt(vty); |
| if (!tgt) { |
| log_tgt_mutex_unlock(); |
| return CMD_WARNING; |
| } |
| |
| log_set_bvc_filter(tgt, &id); |
| log_tgt_mutex_unlock(); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_gbproxy_bvc, show_gbproxy_bvc_cmd, "show gbproxy bvc (bss|sgsn) [stats]", |
| SHOW_STR GBPROXY_STR |
| "Show BSSGP Virtual Connections\n" |
| "Display BSS-side BVCs\n" |
| "Display SGSN-side BVCs\n" |
| "Show statistics\n") |
| { |
| struct gbproxy_nse *nse; |
| bool show_stats = argc >= 2; |
| int i; |
| |
| if (show_stats) |
| vty_out_rate_ctr_group(vty, "", g_cfg->ctrg); |
| |
| if (!strcmp(argv[0], "bss")) { |
| hash_for_each(g_cfg->bss_nses, i, nse, list) |
| gbproxy_vty_print_nse(vty, nse, show_stats); |
| } else { |
| hash_for_each(g_cfg->sgsn_nses, i, nse, list) |
| gbproxy_vty_print_nse(vty, nse, show_stats); |
| } |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_gbproxy_cell, show_gbproxy_cell_cmd, "show gbproxy cell [stats]", |
| SHOW_STR GBPROXY_STR |
| "Show GPRS Cell Information\n" |
| "Show statistics\n") |
| { |
| struct gbproxy_cell *cell; |
| bool show_stats = argc >= 1; |
| int i; |
| |
| hash_for_each(g_cfg->cells, i, cell, list) |
| gbproxy_vty_print_cell(vty, cell, show_stats); |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_gbproxy_links, show_gbproxy_links_cmd, "show gbproxy links", |
| SHOW_STR GBPROXY_STR "Show logical links\n") |
| { |
| struct gbproxy_nse *nse; |
| int i, j; |
| |
| hash_for_each(g_cfg->bss_nses, i, nse, list) { |
| struct gbproxy_bvc *bvc; |
| hash_for_each(nse->bvcs, j, bvc, list) { |
| gbprox_vty_print_bvc(vty, bvc); |
| } |
| } |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_gbproxy_tlli_cache, show_gbproxy_tlli_cache_cmd, |
| "show gbproxy tlli-cache", |
| SHOW_STR GBPROXY_STR "Show TLLI cache entries\n") |
| { |
| struct gbproxy_tlli_cache_entry *entry; |
| struct timespec now; |
| time_t expiry; |
| int i, count = 0; |
| |
| osmo_clock_gettime(CLOCK_MONOTONIC, &now); |
| expiry = now.tv_sec - g_cfg->tlli_cache.timeout; |
| |
| vty_out(vty, "TLLI cache timeout %us%s", g_cfg->tlli_cache.timeout, VTY_NEWLINE); |
| hash_for_each(g_cfg->tlli_cache.entries, i, entry, list) { |
| time_t valid = entry->tstamp - expiry; |
| struct gbproxy_nse *nse = entry->nse; |
| |
| vty_out(vty, " TLLI %08x -> NSE(%05u/%s) valid %lds%s", entry->tlli, nse->nsei, |
| nse->sgsn_facing ? "SGSN" : "BSS", valid, VTY_NEWLINE); |
| count++; |
| } |
| vty_out(vty, "TLLI cache contains %u entries%s", count, VTY_NEWLINE); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_gbproxy_imsi_cache, show_gbproxy_imsi_cache_cmd, |
| "show gbproxy imsi-cache", |
| SHOW_STR GBPROXY_STR "Show IMSI cache entries\n") |
| { |
| struct gbproxy_imsi_cache_entry *entry; |
| struct timespec now; |
| time_t expiry; |
| int i, count = 0; |
| |
| osmo_clock_gettime(CLOCK_MONOTONIC, &now); |
| expiry = now.tv_sec - g_cfg->imsi_cache.timeout; |
| |
| vty_out(vty, "IMSI cache timeout %us%s", g_cfg->imsi_cache.timeout, VTY_NEWLINE); |
| hash_for_each(g_cfg->imsi_cache.entries, i, entry, list) { |
| time_t valid = entry->tstamp - expiry; |
| struct gbproxy_nse *nse = entry->nse; |
| vty_out(vty, " IMSI %s -> NSE(%05u/%s): valid %lds%s", entry->imsi, nse->nsei, |
| nse->sgsn_facing ? "SGSN" : "BSS", valid, VTY_NEWLINE); |
| count++; |
| } |
| vty_out(vty, "IMSI cache contains %u entries%s", count, VTY_NEWLINE); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(delete_gb_bvci, delete_gb_bvci_cmd, |
| "delete-gbproxy-peer <0-65534> bvci <2-65534>", |
| "Delete a GBProxy bvc by NSEI and optionally BVCI\n" |
| "NSEI number\n" |
| "Only delete bvc with a matching BVCI\n" |
| "BVCI number\n") |
| { |
| const uint16_t nsei = atoi(argv[0]); |
| const uint16_t bvci = atoi(argv[1]); |
| struct gbproxy_nse *nse = gbproxy_nse_by_nsei(g_cfg, nsei, NSE_F_BSS); |
| int counter; |
| |
| if (!nse) { |
| vty_out(vty, "NSE not found%s", VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| counter = gbproxy_cleanup_bvcs(nse, 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 bvc 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) { |
| struct gbproxy_nse *nse = gbproxy_nse_by_nsei(g_cfg, nsei, NSE_F_BSS); |
| counter = gbproxy_cleanup_bvcs(nse, 0); |
| gbproxy_nse_free(nse); |
| } else { |
| struct gbproxy_nse *nse; |
| struct gbproxy_bvc *bvc; |
| int i, j; |
| counter = 0; |
| hash_for_each(g_cfg->bss_nses, i, nse, list) { |
| if (nse->nsei != nsei) |
| continue; |
| hash_for_each(nse->bvcs, j, bvc, list) { |
| vty_out(vty, "BVC: "); |
| gbprox_vty_print_bvc(vty, bvc); |
| counter += 1; |
| } |
| } |
| } |
| vty_out(vty, "%sDeleted %d BVC%s", |
| dry_run ? "Not " : "", counter, VTY_NEWLINE); |
| } |
| |
| if (delete_nsvc) { |
| struct gprs_ns2_inst *nsi = g_cfg->nsi; |
| struct gprs_ns2_nse *nse; |
| |
| nse = gprs_ns2_nse_by_nsei(nsi, nsei); |
| if (!nse) { |
| vty_out(vty, "NSEI not found%s", VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| /* TODO: We should NOT delete a persistent NSEI/NSVC as soon as we can check for these */ |
| if (!dry_run) |
| gprs_ns2_free_nse(nse); |
| |
| vty_out(vty, "%sDeleted NS-VCs for NSEI %d%s", |
| dry_run ? "Not " : "", nsei, VTY_NEWLINE); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| /* Only for ttcn3 testing */ |
| DEFUN_HIDDEN(sgsn_pool_nsf_fixed, sgsn_pool_nsf_fixed_cmd, |
| "sgsn-pool nsf fixed NAME", |
| "SGSN pooling: load balancing across multiple SGSNs.\n" |
| "Customize the Network Selection Function.\n" |
| "Set a fixed SGSN to use (for testing).\n" |
| "The name of the SGSN to use.\n") |
| { |
| const char *name = argv[0]; |
| struct gbproxy_sgsn *sgsn = gbproxy_sgsn_by_name(g_cfg, name); |
| |
| if (!sgsn) { |
| vty_out(vty, "%% Could not find SGSN with name %s%s", name, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| g_cfg->pool.nsf_override = sgsn; |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN_HIDDEN(sgsn_pool_nsf_normal, sgsn_pool_nsf_normal_cmd, |
| "sgsn-pool nsf normal", |
| "SGSN pooling: load balancing across multiple SGSNs.\n" |
| "Customize the Network Selection Function.\n" |
| "Reset the NSF back to regular operation (for testing).\n") |
| { |
| g_cfg->pool.nsf_override = NULL; |
| return CMD_SUCCESS; |
| } |
| |
| int gbproxy_vty_init(void) |
| { |
| install_element_ve(&show_gbproxy_bvc_cmd); |
| install_element_ve(&show_gbproxy_cell_cmd); |
| install_element_ve(&show_gbproxy_links_cmd); |
| install_element_ve(&show_gbproxy_tlli_cache_cmd); |
| install_element_ve(&show_gbproxy_imsi_cache_cmd); |
| install_element_ve(&show_nri_all_cmd); |
| install_element_ve(&show_nri_nsei_cmd); |
| install_element_ve(&logging_fltr_bvc_cmd); |
| |
| install_element(ENABLE_NODE, &delete_gb_bvci_cmd); |
| install_element(ENABLE_NODE, &delete_gb_nsei_cmd); |
| install_element(ENABLE_NODE, &sgsn_pool_nsf_fixed_cmd); |
| install_element(ENABLE_NODE, &sgsn_pool_nsf_normal_cmd); |
| |
| install_element(CONFIG_NODE, &cfg_gbproxy_cmd); |
| install_node(&gbproxy_node, config_write_gbproxy); |
| install_element(GBPROXY_NODE, &cfg_pool_bvc_fc_ratio_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_nri_bitlen_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_nri_null_add_cmd); |
| install_element(GBPROXY_NODE, &cfg_gbproxy_nri_null_del_cmd); |
| |
| install_element(CONFIG_NODE, &cfg_sgsn_nsei_cmd); |
| install_node(&sgsn_node, config_write_sgsn); |
| install_element(SGSN_NODE, &cfg_sgsn_name_cmd); |
| install_element(SGSN_NODE, &cfg_sgsn_allow_attach_cmd); |
| install_element(SGSN_NODE, &cfg_sgsn_no_allow_attach_cmd); |
| install_element(SGSN_NODE, &cfg_sgsn_nri_add_cmd); |
| install_element(SGSN_NODE, &cfg_sgsn_nri_del_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; |
| } |