ctrl: Move the lookup into a separate file in preparation for GPRS
For GPRS the look-up via bts/trx does not make any sense and would
introduce bad depdencies for the SGSN. Move the look-up code to a
new file and introduce new setup methods.
diff --git a/openbsc/src/libbsc/bsc_ctrl_lookup.c b/openbsc/src/libbsc/bsc_ctrl_lookup.c
new file mode 100644
index 0000000..338fb11
--- /dev/null
+++ b/openbsc/src/libbsc/bsc_ctrl_lookup.c
@@ -0,0 +1,179 @@
+/* SNMP-like status interface. Look-up of BTS/TRX
+ *
+ * (C) 2010-2011 by Daniel Willmann <daniel@totalueberwachung.de>
+ * (C) 2010-2011 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 <openbsc/control_if.h>
+#include <openbsc/debug.h>
+
+extern vector ctrl_node_vec;
+
+static int get_num(vector vline, int i, long *num)
+{
+ char *token, *tmp;
+
+ if (i >= vector_active(vline))
+ return 0;
+ token = vector_slot(vline, i);
+
+ errno = 0;
+ if (token[0] == '\0')
+ return 0;
+
+ *num = strtol(token, &tmp, 10);
+ if (tmp[0] != '\0' || errno != 0)
+ return 0;
+
+ return 1;
+}
+
+int bsc_ctrl_cmd_handle(struct ctrl_cmd *cmd, void *data)
+{
+ char *token, *request;
+ long num;
+ int i, j, ret, node;
+
+ struct gsm_network *net = data;
+ struct gsm_bts *bts = NULL;
+ struct gsm_bts_trx *trx = NULL;
+ struct gsm_bts_trx_ts *ts = NULL;
+ vector vline, cmdvec, cmds_vec;
+
+ ret = CTRL_CMD_ERROR;
+ cmd->reply = NULL;
+ node = CTRL_NODE_ROOT;
+ cmd->node = net;
+
+ request = talloc_strdup(tall_bsc_ctx, cmd->variable);
+ if (!request)
+ goto err;
+
+ for (i=0;i<strlen(request);i++) {
+ if (request[i] == '.')
+ request[i] = ' ';
+ }
+
+ vline = cmd_make_strvec(request);
+ talloc_free(request);
+ if (!vline) {
+ cmd->reply = "cmd_make_strvec failed.";
+ goto err;
+ }
+
+ for (i=0;i<vector_active(vline);i++) {
+ token = vector_slot(vline, i);
+ /* TODO: We need to make sure that the following chars are digits
+ * and/or use strtol to check if number conversion was successful
+ * Right now something like net.bts_stats will not work */
+ if (!strcmp(token, "bts")) {
+ if (!net)
+ goto err_missing;
+ i++;
+ if (!get_num(vline, i, &num))
+ goto err_index;
+
+ bts = gsm_bts_num(net, num);
+ if (!bts)
+ goto err_missing;
+ cmd->node = bts;
+ node = CTRL_NODE_BTS;
+ } else if (!strcmp(token, "trx")) {
+ if (!bts)
+ goto err_missing;
+ i++;
+ if (!get_num(vline, i, &num))
+ goto err_index;
+
+ trx = gsm_bts_trx_num(bts, num);
+ if (!trx)
+ goto err_missing;
+ cmd->node = trx;
+ node = CTRL_NODE_TRX;
+ } else if (!strcmp(token, "ts")) {
+ if (!trx)
+ goto err_missing;
+ i++;
+ if (!get_num(vline, i, &num))
+ goto err_index;
+
+ if ((num >= 0) && (num < TRX_NR_TS))
+ ts = &trx->ts[num];
+ if (!ts)
+ goto err_missing;
+ cmd->node = ts;
+ node = CTRL_NODE_TS;
+ } else {
+ /* If we're here the rest must be the command */
+ cmdvec = vector_init(vector_active(vline)-i);
+ for (j=i; j<vector_active(vline); j++) {
+ vector_set(cmdvec, vector_slot(vline, j));
+ }
+
+ /* Get the command vector of the right node */
+ cmds_vec = vector_lookup(ctrl_node_vec, node);
+
+ if (!cmds_vec) {
+ cmd->reply = "Command not found.";
+ vector_free(cmdvec);
+ break;
+ }
+
+ ret = ctrl_cmd_exec(cmdvec, cmd, cmds_vec, data);
+
+ vector_free(cmdvec);
+ break;
+ }
+
+ if (i+1 == vector_active(vline))
+ cmd->reply = "Command not present.";
+ }
+
+ cmd_free_strvec(vline);
+
+err:
+ if (!cmd->reply) {
+ LOGP(DCTRL, LOGL_ERROR, "cmd->reply has not been set.\n");
+ if (ret == CTRL_CMD_ERROR)
+ cmd->reply = "An error has occured.";
+ else
+ cmd->reply = "Command has been handled.";
+ }
+
+ if (ret == CTRL_CMD_ERROR)
+ cmd->type = CTRL_TYPE_ERROR;
+ return ret;
+
+err_missing:
+ cmd_free_strvec(vline);
+ cmd->type = CTRL_TYPE_ERROR;
+ cmd->reply = "Error while resolving object";
+ return ret;
+err_index:
+ cmd_free_strvec(vline);
+ cmd->type = CTRL_TYPE_ERROR;
+ cmd->reply = "Error while parsing the index.";
+ return ret;
+}
+
+struct ctrl_handle *bsc_controlif_setup(struct gsm_network *net, uint16_t port)
+{
+ return controlif_setup(net, port, bsc_ctrl_cmd_handle);
+}