| /* OpenBSC NAT interface to quagga VTY */ |
| /* (C) 2010 by Holger Hans Peter Freyther |
| * (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 General Public License as published by |
| * the Free Software Foundation; either version 2 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| #include <vty/command.h> |
| #include <vty/buffer.h> |
| #include <vty/vty.h> |
| |
| #include <openbsc/bsc_nat.h> |
| #include <openbsc/gsm_04_08.h> |
| #include <openbsc/mgcp.h> |
| #include <openbsc/vty.h> |
| |
| #include <osmocore/talloc.h> |
| |
| #include <sccp/sccp.h> |
| |
| #include <stdlib.h> |
| |
| static struct bsc_nat *_nat; |
| |
| static struct cmd_node nat_node = { |
| NAT_NODE, |
| "%s(nat)#", |
| 1, |
| }; |
| |
| static struct cmd_node bsc_node = { |
| BSC_NODE, |
| "%s(bsc)#", |
| 1, |
| }; |
| |
| static int config_write_nat(struct vty *vty) |
| { |
| vty_out(vty, "nat%s", VTY_NEWLINE); |
| if (_nat->imsi_allow) |
| vty_out(vty, " imsi allow %s%s", _nat->imsi_allow, VTY_NEWLINE); |
| if (_nat->imsi_deny) |
| vty_out(vty, " insi deny %s%s", _nat->imsi_deny, VTY_NEWLINE); |
| vty_out(vty, " msc ip %s%s", _nat->msc_ip, VTY_NEWLINE); |
| vty_out(vty, " msc port %d%s", _nat->msc_port, VTY_NEWLINE); |
| return CMD_SUCCESS; |
| } |
| |
| static void config_write_bsc_single(struct vty *vty, struct bsc_config *bsc) |
| { |
| vty_out(vty, " bsc %u%s", bsc->nr, VTY_NEWLINE); |
| vty_out(vty, " token %s%s", bsc->token, VTY_NEWLINE); |
| vty_out(vty, " location_area_code %u%s", bsc->lac, VTY_NEWLINE); |
| if (bsc->imsi_allow) |
| vty_out(vty, " imsi allow %s%s", bsc->imsi_allow, VTY_NEWLINE); |
| if (bsc->imsi_deny) |
| vty_out(vty, " imsi deny %s%s", bsc->imsi_deny, VTY_NEWLINE); |
| } |
| |
| static int config_write_bsc(struct vty *vty) |
| { |
| struct bsc_config *bsc; |
| |
| llist_for_each_entry(bsc, &_nat->bsc_configs, entry) |
| config_write_bsc_single(vty, bsc); |
| return CMD_SUCCESS; |
| } |
| |
| |
| DEFUN(show_sccp, show_sccp_cmd, "show sccp connections", |
| SHOW_STR "Display information about current SCCP connections") |
| { |
| struct sccp_connections *con; |
| llist_for_each_entry(con, &_nat->sccp_connections, list_entry) { |
| vty_out(vty, "SCCP for BSC: Nr: %d lac: %d BSC ref: 0x%x Local ref: 0x%x MSC/BSC mux: 0x%x/0x%x%s", |
| con->bsc->cfg ? con->bsc->cfg->nr : -1, |
| con->bsc->cfg ? con->bsc->cfg->lac : -1, |
| sccp_src_ref_to_int(&con->real_ref), |
| sccp_src_ref_to_int(&con->patched_ref), |
| con->msc_timeslot, con->bsc_timeslot, |
| VTY_NEWLINE); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_bsc, show_bsc_cmd, "show bsc connections", |
| SHOW_STR "Display information about current BSCs") |
| { |
| struct bsc_connection *con; |
| struct sockaddr_in sock; |
| socklen_t len = sizeof(sock); |
| |
| llist_for_each_entry(con, &_nat->bsc_connections, list_entry) { |
| getpeername(con->write_queue.bfd.fd, (struct sockaddr *) &sock, &len); |
| vty_out(vty, "BSC lac: %d, %d auth: %d fd: %d peername: %s%s", |
| con->cfg ? con->cfg->nr : -1, |
| con->cfg ? con->cfg->lac : -1, |
| con->authenticated, con->write_queue.bfd.fd, |
| inet_ntoa(sock.sin_addr), VTY_NEWLINE); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_bsc_cfg, show_bsc_cfg_cmd, "bsc config show", |
| "Display information about known BSC configs") |
| { |
| struct bsc_config *conf; |
| llist_for_each_entry(conf, &_nat->bsc_configs, entry) { |
| vty_out(vty, "BSC token: '%s' lac: %u nr: %u%s", |
| conf->token, conf->lac, conf->nr, VTY_NEWLINE); |
| vty_out(vty, " imsi_allow: '%s' imsi_deny: '%s'%s", |
| conf->imsi_allow ? conf->imsi_allow: "any", |
| conf->imsi_deny ? conf->imsi_deny : "none", |
| VTY_NEWLINE); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(show_stats, |
| show_stats_cmd, |
| "show statistics", |
| SHOW_STR "Display network statistics\n") |
| { |
| struct bsc_config *conf; |
| |
| vty_out(vty, "NAT statistics%s", VTY_NEWLINE); |
| vty_out(vty, " SCCP Connections %lu total, %lu calls%s", |
| counter_get(_nat->stats.sccp.conn), |
| counter_get(_nat->stats.sccp.calls), VTY_NEWLINE); |
| vty_out(vty, " MSC Connections %lu%s", |
| counter_get(_nat->stats.msc.reconn), VTY_NEWLINE); |
| vty_out(vty, " BSC Connections %lu total, %lu auth failed.%s", |
| counter_get(_nat->stats.bsc.reconn), |
| counter_get(_nat->stats.bsc.auth_fail), VTY_NEWLINE); |
| |
| llist_for_each_entry(conf, &_nat->bsc_configs, entry) { |
| vty_out(vty, " BSC lac: %d nr: %d%s", |
| conf->lac, conf->nr, VTY_NEWLINE); |
| vty_out(vty, " SCCP Connnections %lu total, %lu calls%s", |
| counter_get(conf->stats.sccp.conn), |
| counter_get(conf->stats.sccp.calls), VTY_NEWLINE); |
| vty_out(vty, " BSC Connections %lu total%s", |
| counter_get(conf->stats.net.reconn), VTY_NEWLINE); |
| } |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_nat, cfg_nat_cmd, "nat", "Configute the NAT") |
| { |
| vty->index = _nat; |
| vty->node = NAT_NODE; |
| |
| return CMD_SUCCESS; |
| } |
| |
| static void parse_reg(void *ctx, regex_t *reg, char **imsi, int argc, const char **argv) |
| { |
| if (*imsi) { |
| talloc_free(*imsi); |
| *imsi = NULL; |
| } |
| regfree(reg); |
| |
| if (argc > 0) { |
| *imsi = talloc_strdup(ctx, argv[0]); |
| regcomp(reg, argv[0], 0); |
| } |
| } |
| |
| DEFUN(cfg_nat_imsi_allow, |
| cfg_nat_imsi_allow_cmd, |
| "imsi allow [REGEXP]", |
| "Allow matching IMSIs to talk to the MSC. " |
| "The defualt is to allow everyone.") |
| { |
| parse_reg(_nat, &_nat->imsi_allow_re, &_nat->imsi_allow, argc, argv); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_nat_imsi_deny, |
| cfg_nat_imsi_deny_cmd, |
| "imsi deny [REGEXP]", |
| "Deny matching IMSIs to talk to the MSC. " |
| "The defualt is to not deny.") |
| { |
| parse_reg(_nat, &_nat->imsi_deny_re, &_nat->imsi_deny, argc, argv); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_nat_msc_ip, |
| cfg_nat_msc_ip_cmd, |
| "msc ip IP", |
| "Set the IP address of the MSC.") |
| { |
| bsc_nat_set_msc_ip(_nat, argv[0]); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_nat_msc_port, |
| cfg_nat_msc_port_cmd, |
| "msc port <1-65500>", |
| "Set the port of the MSC.") |
| { |
| _nat->msc_port = atoi(argv[0]); |
| return CMD_SUCCESS; |
| } |
| |
| /* per BSC configuration */ |
| DEFUN(cfg_bsc, cfg_bsc_cmd, "bsc BSC_NR", "Select a BSC to configure\n") |
| { |
| int bsc_nr = atoi(argv[0]); |
| struct bsc_config *bsc; |
| |
| if (bsc_nr > _nat->num_bsc) { |
| vty_out(vty, "%% The next unused BSC number is %u%s", |
| _nat->num_bsc, VTY_NEWLINE); |
| return CMD_WARNING; |
| } else if (bsc_nr == _nat->num_bsc) { |
| /* allocate a new one */ |
| bsc = bsc_config_alloc(_nat, "unknown", 0); |
| } else |
| bsc = bsc_config_num(_nat, bsc_nr); |
| |
| if (!bsc) |
| return CMD_WARNING; |
| |
| vty->index = bsc; |
| vty->node = BSC_NODE; |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_bsc_token, cfg_bsc_token_cmd, "token TOKEN", "Set the token") |
| { |
| struct bsc_config *conf = vty->index; |
| |
| if (conf->token) |
| talloc_free(conf->token); |
| conf->token = talloc_strdup(conf, argv[0]); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_bsc_lac, cfg_bsc_lac_cmd, "location_area_code <0-65535>", |
| "Set the Location Area Code (LAC) of this BSC\n") |
| { |
| struct bsc_config *tmp; |
| struct bsc_config *conf = vty->index; |
| |
| int lac = atoi(argv[0]); |
| |
| if (lac < 0 || lac > 0xffff) { |
| vty_out(vty, "%% LAC %d is not in the valid range (0-65535)%s", |
| lac, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| if (lac == GSM_LAC_RESERVED_DETACHED || lac == GSM_LAC_RESERVED_ALL_BTS) { |
| vty_out(vty, "%% LAC %d is reserved by GSM 04.08%s", |
| lac, VTY_NEWLINE); |
| return CMD_WARNING; |
| } |
| |
| /* verify that the LACs are unique */ |
| llist_for_each_entry(tmp, &_nat->bsc_configs, entry) { |
| if (tmp->lac == lac) { |
| vty_out(vty, "%% LAC %d is already used.%s", lac, VTY_NEWLINE); |
| return CMD_ERR_INCOMPLETE; |
| } |
| } |
| |
| conf->lac = lac; |
| |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_bsc_imsi_allow, |
| cfg_bsc_imsi_allow_cmd, |
| "imsi allow [REGEXP]", |
| "Allow IMSIs with the following network to talk to the MSC." |
| "The default is to allow everyone)") |
| { |
| struct bsc_config *conf = vty->index; |
| |
| parse_reg(conf, &conf->imsi_allow_re, &conf->imsi_allow, argc, argv); |
| return CMD_SUCCESS; |
| } |
| |
| DEFUN(cfg_bsc_imsi_deny, |
| cfg_bsc_imsi_deny_cmd, |
| "imsi deny [REGEXP]", |
| "Deny IMSIs with the following network to talk to the MSC." |
| "The default is to not deny anyone.)") |
| { |
| struct bsc_config *conf = vty->index; |
| |
| parse_reg(conf, &conf->imsi_deny_re, &conf->imsi_deny, argc, argv); |
| return CMD_SUCCESS; |
| } |
| |
| int bsc_nat_vty_init(struct bsc_nat *nat) |
| { |
| _nat = nat; |
| |
| cmd_init(1); |
| vty_init(); |
| |
| /* show commands */ |
| install_element(VIEW_NODE, &show_sccp_cmd); |
| install_element(VIEW_NODE, &show_bsc_cmd); |
| install_element(VIEW_NODE, &show_bsc_cfg_cmd); |
| install_element(VIEW_NODE, &show_stats_cmd); |
| |
| openbsc_vty_add_cmds(); |
| |
| /* nat group */ |
| install_element(CONFIG_NODE, &cfg_nat_cmd); |
| install_node(&nat_node, config_write_nat); |
| install_default(NAT_NODE); |
| install_element(NAT_NODE, &cfg_nat_imsi_allow_cmd); |
| install_element(NAT_NODE, &cfg_nat_imsi_deny_cmd); |
| install_element(NAT_NODE, &cfg_nat_msc_ip_cmd); |
| install_element(NAT_NODE, &cfg_nat_msc_port_cmd); |
| |
| /* BSC subgroups */ |
| install_element(NAT_NODE, &cfg_bsc_cmd); |
| install_node(&bsc_node, config_write_bsc); |
| install_default(BSC_NODE); |
| install_element(BSC_NODE, &cfg_bsc_token_cmd); |
| install_element(BSC_NODE, &cfg_bsc_lac_cmd); |
| install_element(BSC_NODE, &cfg_bsc_imsi_allow_cmd); |
| install_element(BSC_NODE, &cfg_bsc_imsi_deny_cmd); |
| |
| mgcp_vty_init(); |
| |
| return 0; |
| } |
| |
| |
| /* called by the telnet interface... we have our own init above */ |
| void bsc_vty_init() |
| {} |