/* * (C) 2010 by Harald Welte * (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 . * */ #include #include #include #include #include #include #include #include #include #include #include #include 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 patch_modes[] = { {GBPROX_PATCH_DEFAULT, "default"}, {GBPROX_PATCH_BSSGP, "bssgp"}, {GBPROX_PATCH_LLC_ATTACH_REQ, "llc-attach-req"}, {GBPROX_PATCH_LLC_ATTACH, "llc-attach"}, {GBPROX_PATCH_LLC_GMM, "llc-gmm"}, {GBPROX_PATCH_LLC_GSM, "llc-gsm"}, {GBPROX_PATCH_LLC, "llc"}, {0, NULL} }; static int config_write_gbproxy(struct vty *vty) { 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.network_code > 0) vty_out(vty, " core-mobile-network-code %0*d%s", g_cfg->core_mnc.two_digits ? 2 : 3, g_cfg->core_mnc.network_code, 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", gbprox_apn_to_str(str, g_cfg->core_apn, g_cfg->core_apn_size)); } else { vty_out(vty, " core-access-point-name none"); } if (g_cfg->match_re) vty_out(vty, " match-imsi %s%s", g_cfg->match_re, VTY_NEWLINE); else vty_out(vty, "%s", VTY_NEWLINE); } if (g_cfg->tlli_max_age > 0) vty_out(vty, " tlli-list max-age %d%s", g_cfg->tlli_max_age, VTY_NEWLINE); if (g_cfg->tlli_max_len > 0) vty_out(vty, " tlli-list max-length %d%s", g_cfg->tlli_max_len, VTY_NEWLINE); if (g_cfg->patch_mode != GBPROX_PATCH_DEFAULT) vty_out(vty, " patch-mode %s%s", get_value_string(patch_modes, g_cfg->patch_mode), 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 port = atoi(argv[0]); g_cfg->nsip_sgsn_nsei = port; 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 = gsm48_str_to_mnc(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) { /* FIXME: 00, 000 are valid MNCs */ g_cfg->core_mnc.network_code = 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_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, const char *filter) { const char *err_msg = NULL; int apn_len; if (!apn) { talloc_free(g_cfg->core_apn); g_cfg->core_apn = NULL; g_cfg->core_apn_size = 0; gbprox_set_patch_filter(NULL, NULL); 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 (!filter) { gbprox_set_patch_filter(NULL, NULL); } else if (gbprox_set_patch_filter(filter, &err_msg) != 0) { vty_out(vty, "Match expression invalid: %s%s", err_msg, VTY_NEWLINE); return CMD_WARNING; } talloc_free(g_cfg->match_re); if (filter) /* TODO: replace NULL */ g_cfg->match_re = talloc_strdup(NULL, filter); else g_cfg->match_re = NULL; 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 = gbprox_str_to_apn(g_cfg->core_apn, apn, apn_len + 1); } 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, "", NULL); else return set_core_apn(vty, argv[0], NULL); } DEFUN(cfg_gbproxy_core_apn_match, cfg_gbproxy_core_apn_match_cmd, "core-access-point-name (APN|none) match-imsi .REGEXP", GBPROXY_CORE_APN_STR GBPROXY_CORE_APN_ARG_STR "Only modify if the IMSI matches\n" "Regular expression for the match\n") { if (strcmp(argv[0], "none") == 0) return set_core_apn(vty, "", argv[1]); else return set_core_apn(vty, argv[0], argv[1]); } 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, NULL); } #define GBPROXY_TLLI_LIST_STR "Set TLLI list parameters\n" #define GBPROXY_MAX_AGE_STR "Limit maximum age\n" DEFUN(cfg_gbproxy_tlli_list_max_age, cfg_gbproxy_tlli_list_max_age_cmd, "tlli-list max-age <1-999999>", GBPROXY_TLLI_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_tlli_list_no_max_age, cfg_gbproxy_tlli_list_no_max_age_cmd, "no tlli-list max-age", NO_STR GBPROXY_TLLI_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_tlli_list_max_len, cfg_gbproxy_tlli_list_max_len_cmd, "tlli-list max-length <1-99999>", GBPROXY_TLLI_LIST_STR GBPROXY_MAX_LEN_STR "Maximum number of TLLIs in the list\n") { g_cfg->tlli_max_len = atoi(argv[0]); return CMD_SUCCESS; } DEFUN(cfg_gbproxy_tlli_list_no_max_len, cfg_gbproxy_tlli_list_no_max_len_cmd, "no tlli-list max-length", NO_STR GBPROXY_TLLI_LIST_STR GBPROXY_MAX_LEN_STR) { g_cfg->tlli_max_len = 0; return CMD_SUCCESS; } DEFUN(cfg_gbproxy_patch_mode, cfg_gbproxy_patch_mode_cmd, "patch-mode (default|bssgp|llc-attach-req|llc-attach|llc-gmm|llc-gsm|llc)", "Set patch mode\n" "Use build-in default (best effort, try to patch everything)\n" "Only patch BSSGP headers\n" "Patch BSSGP headers and LLC Attach Request messages\n" "Patch BSSGP headers and LLC Attach Request/Accept messages\n" "Patch BSSGP headers and LLC GMM messages\n" "Patch BSSGP headers, LLC GMM, and LLC GSM messages\n" "Patch BSSGP headers and all supported LLC messages\n" ) { int val = get_string_value(patch_modes, argv[0]); OSMO_ASSERT(val >= 0); g_cfg->patch_mode = val; return CMD_SUCCESS; } int gbproxy_vty_init(void) { install_element_ve(&show_gbproxy_cmd); install_element_ve(&show_gbproxy_tllis_cmd); install_element(ENABLE_NODE, &delete_gb_bvci_cmd); install_element(ENABLE_NODE, &delete_gb_nsei_cmd); install_element(ENABLE_NODE, &delete_gb_tlli_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_core_apn_cmd); install_element(GBPROXY_NODE, &cfg_gbproxy_core_apn_match_cmd); install_element(GBPROXY_NODE, &cfg_gbproxy_tlli_list_max_age_cmd); install_element(GBPROXY_NODE, &cfg_gbproxy_tlli_list_max_len_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_core_apn_cmd); install_element(GBPROXY_NODE, &cfg_gbproxy_tlli_list_no_max_age_cmd); install_element(GBPROXY_NODE, &cfg_gbproxy_tlli_list_no_max_len_cmd); install_element(GBPROXY_NODE, &cfg_gbproxy_patch_mode_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; }