234 lines
5.7 KiB
C
234 lines
5.7 KiB
C
/* OpenBSC NAT interface to quagga VTY */
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/* (C) 2010 by Holger Hans Peter Freyther
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* (C) 2010 by On-Waves
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <vty/command.h>
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#include <vty/buffer.h>
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#include <vty/vty.h>
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#include <openbsc/bsc_nat.h>
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#include <openbsc/gsm_04_08.h>
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#include <openbsc/mgcp.h>
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#include <openbsc/vty.h>
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#include <osmocore/talloc.h>
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#include <sccp/sccp.h>
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#include <stdlib.h>
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static struct bsc_nat *_nat;
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static struct cmd_node nat_node = {
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NAT_NODE,
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"%s(nat)#",
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1,
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};
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static struct cmd_node bsc_node = {
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BSC_NODE,
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"%s(bsc)#",
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1,
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};
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static int config_write_nat(struct vty *vty)
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{
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vty_out(vty, "nat%s", VTY_NEWLINE);
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return CMD_SUCCESS;
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}
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static void config_write_bsc_single(struct vty *vty, struct bsc_config *bsc)
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{
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vty_out(vty, " bsc %u%s", bsc->nr, VTY_NEWLINE);
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vty_out(vty, " token %s%s", bsc->token, VTY_NEWLINE);
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vty_out(vty, " lac %u%s", bsc->lac, VTY_NEWLINE);
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}
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static int config_write_bsc(struct vty *vty)
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{
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struct bsc_config *bsc;
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llist_for_each_entry(bsc, &_nat->bsc_configs, entry)
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config_write_bsc_single(vty, bsc);
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return CMD_SUCCESS;
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}
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DEFUN(show_sccp, show_sccp_cmd, "sccp connections show",
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SHOW_STR "Display information about current SCCP connections")
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{
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struct sccp_connections *con;
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llist_for_each_entry(con, &_nat->sccp_connections, list_entry) {
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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",
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con->bsc->cfg ? con->bsc->cfg->nr : -1,
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con->bsc->cfg ? con->bsc->cfg->lac : -1,
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sccp_src_ref_to_int(&con->real_ref),
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sccp_src_ref_to_int(&con->patched_ref),
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con->msc_timeslot, con->bsc_timeslot,
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VTY_NEWLINE);
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}
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return CMD_SUCCESS;
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}
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DEFUN(show_bsc, show_bsc_cmd, "bsc connections show",
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SHOW_STR "Display information about current BSCs")
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{
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struct bsc_connection *con;
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struct sockaddr_in sock;
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socklen_t len = sizeof(sock);
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llist_for_each_entry(con, &_nat->bsc_connections, list_entry) {
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getpeername(con->write_queue.bfd.fd, (struct sockaddr *) &sock, &len);
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vty_out(vty, "BSC lac: %d, %d auth: %d fd: %d peername: %s%s",
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con->cfg ? con->cfg->nr : -1,
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con->cfg ? con->cfg->lac : -1,
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con->authenticated, con->write_queue.bfd.fd,
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inet_ntoa(sock.sin_addr), VTY_NEWLINE);
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}
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return CMD_SUCCESS;
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}
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DEFUN(show_bsc_cfg, show_bsc_cfg_cmd, "bsc config show",
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SHOW_STR "Display information about known BSC configs")
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{
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struct bsc_config *conf;
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llist_for_each_entry(conf, &_nat->bsc_configs, entry) {
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vty_out(vty, "BSC token: '%s' lac: %u nr: %u%s",
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conf->token, conf->lac, conf->nr, VTY_NEWLINE);
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}
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return CMD_SUCCESS;
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}
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DEFUN(cfg_nat, cfg_nat_cmd, "nat", "Configute the NAT")
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{
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vty->index = _nat;
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vty->node = NAT_NODE;
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return CMD_SUCCESS;
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}
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/* per BSC configuration */
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DEFUN(cfg_bsc, cfg_bsc_cmd, "bsc BSC_NR", "Select a BSC to configure\n")
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{
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int bsc_nr = atoi(argv[0]);
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struct bsc_config *bsc;
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if (bsc_nr > _nat->num_bsc) {
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vty_out(vty, "%% The next unused BSC number is %u%s",
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_nat->num_bsc, VTY_NEWLINE);
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return CMD_WARNING;
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} else if (bsc_nr == _nat->num_bsc) {
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/* allocate a new one */
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bsc = bsc_config_alloc(_nat, "unknown", 0);
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} else
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bsc = bsc_config_num(_nat, bsc_nr);
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if (!bsc)
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return CMD_WARNING;
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vty->index = bsc;
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vty->node = BSC_NODE;
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return CMD_SUCCESS;
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}
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DEFUN(cfg_bsc_token, cfg_bsc_token_cmd, "token TOKEN", "Set the token")
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{
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struct bsc_config *conf = vty->index;
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if (conf->token)
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talloc_free(conf->token);
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conf->token = talloc_strdup(conf, argv[0]);
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return CMD_SUCCESS;
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}
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DEFUN(cfg_bsc_lac, cfg_bsc_lac_cmd, "location_area_code <0-65535>",
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"Set the Location Area Code (LAC) of this BSC\n")
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{
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struct bsc_config *tmp;
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struct bsc_config *conf = vty->index;
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int lac = atoi(argv[0]);
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if (lac < 0 || lac > 0xffff) {
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vty_out(vty, "%% LAC %d is not in the valid range (0-65535)%s",
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lac, VTY_NEWLINE);
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return CMD_WARNING;
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}
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if (lac == GSM_LAC_RESERVED_DETACHED || lac == GSM_LAC_RESERVED_ALL_BTS) {
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vty_out(vty, "%% LAC %d is reserved by GSM 04.08%s",
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lac, VTY_NEWLINE);
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return CMD_WARNING;
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}
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/* verify that the LACs are unique */
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llist_for_each_entry(tmp, &_nat->bsc_configs, entry) {
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if (tmp->lac == lac) {
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vty_out(vty, "%% LAC %d is already used.%s", lac, VTY_NEWLINE);
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return CMD_ERR_INCOMPLETE;
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}
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}
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conf->lac = lac;
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return CMD_SUCCESS;
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}
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int bsc_nat_vty_init(struct bsc_nat *nat)
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{
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_nat = nat;
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cmd_init(1);
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vty_init();
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/* show commands */
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install_element(VIEW_NODE, &show_sccp_cmd);
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install_element(VIEW_NODE, &show_bsc_cmd);
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install_element(VIEW_NODE, &show_bsc_cfg_cmd);
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openbsc_vty_add_cmds();
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/* nat group */
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install_element(CONFIG_NODE, &cfg_nat_cmd);
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install_node(&nat_node, config_write_nat);
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install_default(NAT_NODE);
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/* BSC subgroups */
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install_element(NAT_NODE, &cfg_bsc_cmd);
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install_node(&bsc_node, config_write_bsc);
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install_default(BSC_NODE);
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install_element(BSC_NODE, &cfg_bsc_token_cmd);
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install_element(BSC_NODE, &cfg_bsc_lac_cmd);
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mgcp_vty_init();
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return 0;
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}
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/* called by the telnet interface... we have our own init above */
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void bsc_vty_init()
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{}
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