[nat] Add VTY support to the BSC nat application
* Create struct bsc_nat and move the various lists into this structure
* Create the VTY code
* Call the VTY init and parsing code
* Create functions to create the types..
* Add some stuff into the bsc_connection to be used for the NAT with
proper config files. E.g. to close the connection if the BSC does not
respond to a given command.
diff --git a/openbsc/src/nat/bsc_nat_vty.c b/openbsc/src/nat/bsc_nat_vty.c
new file mode 100644
index 0000000..24ef398
--- /dev/null
+++ b/openbsc/src/nat/bsc_nat_vty.c
@@ -0,0 +1,207 @@
+/* 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/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);
+ 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, " lac %u%s", bsc->lac, 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 connections sccp",
+ 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: %d BSC ref: %u Local ref: %u%s",
+ con->bsc->lac,
+ sccp_src_ref_to_int(&con->real_ref),
+ sccp_src_ref_to_int(&con->patched_ref), VTY_NEWLINE);
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(show_bsc, show_bsc_cmd, "show connections bsc",
+ SHOW_STR "Display information about current BSCs")
+{
+ struct bsc_connection *con;
+ llist_for_each_entry(con, &_nat->bsc_connections, list_entry) {
+ vty_out(vty, "BSC lac: %d auth: %d fd: %d%s",
+ con->lac, con->authenticated, con->bsc_fd.fd, VTY_NEWLINE);
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(show_bsc_cfg, show_bsc_cfg_cmd, "show bsc config",
+ SHOW_STR "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);
+ }
+
+ return CMD_SUCCESS;
+}
+
+
+DEFUN(cfg_nat, cfg_nat_cmd, "nat", "Configute the NAT")
+{
+ vty->index = _nat;
+ vty->node = NAT_NODE;
+
+ 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 *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;
+ }
+
+ conf->lac = lac;
+
+ 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);
+
+ /* nat group */
+ install_element(CONFIG_NODE, &cfg_nat_cmd);
+ install_node(&nat_node, config_write_nat);
+ install_default(NAT_NODE);
+
+ /* 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);
+
+ return 0;
+}
+
+
+/* called by the telnet interface... we have our own init above */
+void bsc_vty_init()
+{}