move openbsc/* to repos root

This is the first step in creating this repository from the legacy openbsc.git.

Like all other Osmocom repositories, keep the autoconf and automake files in
the repository root. openbsc.git has been the sole exception, which ends now.

Change-Id: I9c6f2a448d9cb1cc088cf1cf6918b69d7e69b4e7

1 files changed, 212 insertions, 0 deletions

diff --git a/src/libmsc/ctrl_commands.c b/src/libmsc/ctrl_commands.c
new file mode 100644
index 000000000..c99dde44c
--- /dev/null
+++ b/src/libmsc/ctrl_commands.c
@@ -0,0 +1,212 @@
+/*
+ * (C) 2014 by Holger Hans Peter Freyther
+ * (C) 2014 by sysmocom s.f.m.c. GmbH
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <osmocom/ctrl/control_cmd.h>
+#include <osmocom/core/utils.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/db.h>
+#include <openbsc/debug.h>
+
+#include <stdbool.h>
+
+static bool alg_supported(const char *alg)
+{
+	/*
+	 * TODO: share this with the vty_interface and extend to all
+	 * algorithms supported by libosmocore now. Make it table based
+	 * as well.
+	 */
+	if (strcasecmp(alg, "none") == 0)
+		return true;
+	if (strcasecmp(alg, "xor") == 0)
+		return true;
+	if (strcasecmp(alg, "comp128v1") == 0)
+		return true;
+	return false;
+}
+
+static int verify_subscriber_modify(struct ctrl_cmd *cmd, const char *value, void *d)
+{
+	char *tmp, *imsi, *msisdn, *alg, *ki, *saveptr = NULL;
+	int rc = 0;
+
+	tmp = talloc_strdup(cmd, value);
+	if (!tmp)
+		return 1;
+
+	imsi = strtok_r(tmp, ",", &saveptr);
+	msisdn = strtok_r(NULL, ",", &saveptr);
+	alg = strtok_r(NULL, ",", &saveptr);
+	ki = strtok_r(NULL, ",", &saveptr);
+
+	if (!imsi || !msisdn)
+		rc = 1;
+	else if (strlen(imsi) > GSM23003_IMSI_MAX_DIGITS)
+		rc = 1;
+	else if (strlen(msisdn) >= GSM_EXTENSION_LENGTH)
+		rc = 1;
+	else if (alg) {
+		if (!alg_supported(alg))
+			rc = 1;
+		else if (strcasecmp(alg, "none") != 0 && !ki)
+			rc = 1;
+	}
+
+	talloc_free(tmp);
+	return rc;
+}
+
+static int set_subscriber_modify(struct ctrl_cmd *cmd, void *data)
+{
+	struct gsm_network *net = cmd->node;
+	char *tmp, *imsi, *msisdn, *alg, *ki, *saveptr = NULL;
+	struct gsm_subscriber* subscr;
+	int rc;
+
+	tmp = talloc_strdup(cmd, cmd->value);
+	if (!tmp)
+		return 1;
+
+	imsi = strtok_r(tmp, ",", &saveptr);
+	msisdn = strtok_r(NULL, ",", &saveptr);
+	alg = strtok_r(NULL, ",", &saveptr);
+	ki = strtok_r(NULL, ",", &saveptr);
+
+	subscr = subscr_get_by_imsi(net->subscr_group, imsi);
+	if (!subscr)
+		subscr = subscr_create_subscriber(net->subscr_group, imsi);
+	if (!subscr)
+		goto fail;
+
+	subscr->authorized = 1;
+	osmo_strlcpy(subscr->extension, msisdn, sizeof(subscr->extension));
+
+	/* put it back to the db */
+	rc = db_sync_subscriber(subscr);
+	db_subscriber_update(subscr);
+
+	/* handle optional ciphering */
+	if (alg) {
+		if (strcasecmp(alg, "none") == 0)
+			db_sync_authinfo_for_subscr(NULL, subscr);
+		else {
+			struct gsm_auth_info ainfo = { 0, };
+			/* the verify should make sure that this is okay */
+			OSMO_ASSERT(alg);
+			OSMO_ASSERT(ki);
+
+			if (strcasecmp(alg, "xor") == 0)
+				ainfo.auth_algo = AUTH_ALGO_XOR;
+			else if (strcasecmp(alg, "comp128v1") == 0)
+				ainfo.auth_algo = AUTH_ALGO_COMP128v1;
+
+			rc = osmo_hexparse(ki, ainfo.a3a8_ki, sizeof(ainfo.a3a8_ki));
+			if (rc < 0) {
+				subscr_put(subscr);
+				talloc_free(tmp);
+				cmd->reply = "Failed to parse KI";
+				return CTRL_CMD_ERROR;
+			}
+
+			ainfo.a3a8_ki_len = rc;
+			db_sync_authinfo_for_subscr(&ainfo, subscr);
+			rc = 0;
+		}
+		db_sync_lastauthtuple_for_subscr(NULL, subscr);
+	}
+	subscr_put(subscr);
+
+	talloc_free(tmp);
+
+	if (rc != 0) {
+		cmd->reply = "Failed to store the record in the DB";
+		return CTRL_CMD_ERROR;
+	}
+
+	cmd->reply = "OK";
+	return CTRL_CMD_REPLY;
+
+fail:
+	talloc_free(tmp);
+	cmd->reply = "Failed to create subscriber";
+	return CTRL_CMD_ERROR;
+}
+
+CTRL_CMD_DEFINE_WO(subscriber_modify, "subscriber-modify-v1");
+
+static int set_subscriber_delete(struct ctrl_cmd *cmd, void *data)
+{
+	int was_used = 0;
+	int rc;
+	struct gsm_subscriber *subscr;
+	struct gsm_network *net = cmd->node;
+
+	subscr = subscr_get_by_imsi(net->subscr_group, cmd->value);
+	if (!subscr) {
+		cmd->reply = "Failed to find subscriber";
+		return CTRL_CMD_ERROR;
+	}
+
+	if (subscr->use_count != 1) {
+		LOGP(DCTRL, LOGL_NOTICE, "Going to remove active subscriber.\n");
+		was_used = 1;
+	}
+
+	rc = db_subscriber_delete(subscr);
+	subscr_put(subscr);
+
+	if (rc != 0) {
+		cmd->reply = "Failed to remove subscriber";
+		return CTRL_CMD_ERROR;
+	}
+
+	cmd->reply = was_used ? "Removed active subscriber" : "Removed";
+	return CTRL_CMD_REPLY;
+}
+CTRL_CMD_DEFINE_WO_NOVRF(subscriber_delete, "subscriber-delete-v1");
+
+static void list_cb(struct gsm_subscriber *subscr, void *d)
+{
+	char **data = (char **) d;
+	*data = talloc_asprintf_append(*data, "%s,%s\n",
+				subscr->imsi, subscr->extension);
+}
+
+static int get_subscriber_list(struct ctrl_cmd *cmd, void *d)
+{
+	cmd->reply = talloc_strdup(cmd, "");
+
+	db_subscriber_list_active(list_cb, &cmd->reply);
+	printf("%s\n", cmd->reply);
+	return CTRL_CMD_REPLY;
+}
+CTRL_CMD_DEFINE_RO(subscriber_list, "subscriber-list-active-v1");
+
+int msc_ctrl_cmds_install(void)
+{
+	int rc = 0;
+
+	rc |= ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_subscriber_modify);
+	rc |= ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_subscriber_delete);
+	rc |= ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_subscriber_list);
+	return rc;
+}