osmo-msc/openbsc/src/gprs/sgsn_ctrl.c

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/* Control Interface Implementation for the SGSN */
/*
* (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 <openbsc/control_if.h>
#include <openbsc/control_cmd.h>
#include <openbsc/gprs_sgsn.h>
#include <openbsc/sgsn.h>
#include <openbsc/debug.h>
#include <pdp.h>
extern vector ctrl_node_vec;
static int verify_subscriber_list(struct ctrl_cmd *cmd, const char *v, void *d)
{
return 1;
}
static int set_subscriber_list(struct ctrl_cmd *cmd, void *d)
{
cmd->reply = "Get only attribute";
return CTRL_CMD_ERROR;
}
static int get_subscriber_list(struct ctrl_cmd *cmd, void *d)
{
struct sgsn_mm_ctx *mm;
cmd->reply = talloc_strdup(cmd, "");
llist_for_each_entry(mm, &sgsn_mm_ctxts, list) {
char *addr = NULL;
struct sgsn_pdp_ctx *pdp;
if (strlen(mm->imsi) == 0)
continue;
llist_for_each_entry(pdp, &mm->pdp_list, list)
addr = gprs_pdpaddr2str(pdp->lib->eua.v,
pdp->lib->eua.l);
cmd->reply = talloc_asprintf_append(
cmd->reply,
"%s,%s\n", mm->imsi, addr ? addr : "");
}
return CTRL_CMD_REPLY;
}
CTRL_CMD_DEFINE(subscriber_list, "subscriber-list-active-v1");
int sgsn_ctrl_cmds_install(void)
{
int rc = 0;
rc |= ctrl_cmd_install(CTRL_NODE_ROOT, &cmd_subscriber_list);
return rc;
}
static int sgsn_cmd_handle(struct ctrl_cmd *cmd, void *data)
{
char *request;
cmd->reply = NULL;
cmd->node = NULL;
vector vline, cmdvec, cmds_vec;
int i, ret;
ret = CTRL_CMD_ERROR;
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;
}
/* If we're here the rest must be the command */
cmdvec = vector_init(vector_active(vline));
for (i = 0 ; i < vector_active(vline); ++i) {
vector_set(cmdvec, vector_slot(vline, i));
}
/* Get the command vector of the right node */
cmds_vec = vector_lookup(ctrl_node_vec, CTRL_NODE_ROOT);
if (!cmds_vec) {
cmd->reply = "Command not found.";
vector_free(cmdvec);
goto err;
}
ret = ctrl_cmd_exec(cmdvec, cmd, cmds_vec, data);
vector_free(cmdvec);
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;
}
struct ctrl_handle *sgsn_controlif_setup(struct gsm_network *net, uint16_t port)
{
return controlif_setup(net, port, sgsn_cmd_handle);
}