static void signal_handler(int signal)
{
fprintf(stdout, "signal %u received\n", signal);
switch (signal) {
case SIGINT:
bsc_shutdown_net(bsc_gsmnet);
osmo_signal_dispatch(SS_GLOBAL, S_GLOBAL_SHUTDOWN, NULL);
sleep(3);
exit(0);
break;
case SIGABRT:
/* in case of abort, we want to obtain a talloc report
* and then return to the caller, who will abort the process */
case SIGUSR1:
talloc_report(tall_vty_ctx, stderr);
talloc_report_full(tall_bsc_ctx, stderr);
break;
case SIGUSR2:
if (!bsc_gsmnet->msc_data)
return;
if (!bsc_gsmnet->msc_data->msc_con)
return;
if (!bsc_gsmnet->msc_data->msc_con->is_connected)
return;
bsc_msc_lost(bsc_gsmnet->msc_data->msc_con);
break;
default:
break;
}
}
void sighandler(int sigset)
{
if (sigset == SIGHUP || sigset == SIGPIPE)
return;
fprintf(stderr, "Signal %d received.\n", sigset);
switch (sigset) {
case SIGINT:
/* If another signal is received afterwards, the program
* is terminated without finishing shutdown process.
*/
signal(SIGINT, SIG_DFL);
signal(SIGHUP, SIG_DFL);
signal(SIGTERM, SIG_DFL);
signal(SIGPIPE, SIG_DFL);
signal(SIGABRT, SIG_DFL);
signal(SIGUSR1, SIG_DFL);
signal(SIGUSR2, SIG_DFL);
osmo_signal_dispatch(SS_GLOBAL, S_GLOBAL_SHUTDOWN, NULL);
break;
case SIGABRT:
/* in case of abort, we want to obtain a talloc report
* and then return to the caller, who will abort the process
*/
case SIGUSR1:
case SIGUSR2:
talloc_report_full(l23_ctx, stderr);
break;
}
}
/* Confirmation of a PDP Context Delete */
static int delete_pdp_conf(struct pdp_t *pdp, void *cbp, int cause)
{
struct sgsn_signal_data sig_data;
struct sgsn_pdp_ctx *pctx = cbp;
int rc = 0;
LOGPDPCTXP(LOGL_INFO, pctx, "Received DELETE PDP CTX CONF, cause=%d(%s)\n",
cause, get_value_string(gtp_cause_strs, cause));
memset(&sig_data, 0, sizeof(sig_data));
sig_data.pdp = pctx;
osmo_signal_dispatch(SS_SGSN, S_SGSN_PDP_DEACT, &sig_data);
if (pctx->mm) {
/* Deactivate the SNDCP layer */
sndcp_sm_deactivate_ind(&pctx->mm->llme->lle[pctx->sapi], pctx->nsapi);
/* Confirm deactivation of PDP context to MS */
rc = gsm48_tx_gsm_deact_pdp_acc(pctx);
} else {
LOGPDPCTXP(LOGL_NOTICE, pctx,
"Not deactivating SNDCP layer since the MM context "
"is not available\n");
}
/* unlink the now non-existing library handle from the pdp
* context */
pctx->lib = NULL;
sgsn_pdp_ctx_free(pctx);
return rc;
}
/* Chapter 9.1.17 Handover Failure */
static void handle_rr_ho_fail(struct msgb *msg)
{
struct lchan_signal_data sig;
struct gsm48_hdr *gh = msgb_l3(msg);
DEBUGP(DRR, "HANDOVER FAILED cause = %s\n",
rr_cause_name(gh->data[0]));
sig.lchan = msg->lchan;
sig.mr = NULL;
osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_FAIL, &sig);
/* FIXME: release allocated new channel */
}
/* Chapter 9.1.16 Handover complete */
static void handle_rr_ho_compl(struct msgb *msg)
{
struct lchan_signal_data sig;
struct gsm48_hdr *gh = msgb_l3(msg);
DEBUGP(DRR, "HANDOVER COMPLETE cause = %s\n",
rr_cause_name(gh->data[0]));
sig.lchan = msg->lchan;
sig.mr = NULL;
osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_COMPL, &sig);
/* FIXME: release old channel */
}
static void signal_handler(int signal)
{
fprintf(stdout, "signal %d received\n", signal);
switch (signal) {
case SIGINT:
osmo_signal_dispatch(SS_L_GLOBAL, S_L_GLOBAL_SHUTDOWN, NULL);
sleep(1);
exit(0);
break;
case SIGABRT:
/* in case of abort, we want to obtain a talloc report
* and then return to the caller, who will abort the process */
case SIGUSR1:
case SIGUSR2:
talloc_report_full(osmo_gtphub_ctx, stderr);
break;
default:
break;
}
}
/* The GGSN has confirmed the creation of a PDP Context */
static int create_pdp_conf(struct pdp_t *pdp, void *cbp, int cause)
{
struct sgsn_signal_data sig_data;
struct sgsn_pdp_ctx *pctx = cbp;
uint8_t reject_cause;
LOGPDPCTXP(LOGL_INFO, pctx, "Received CREATE PDP CTX CONF, cause=%d(%s)\n",
cause, get_value_string(gtp_cause_strs, cause));
if (!pctx->mm) {
LOGP(DGPRS, LOGL_INFO,
"No MM context, aborting CREATE PDP CTX CONF\n");
return -EIO;
}
/* Check for cause value if it was really successful */
if (cause < 0) {
LOGP(DGPRS, LOGL_NOTICE, "Create PDP ctx req timed out\n");
if (pdp && pdp->version == 1) {
pdp->version = 0;
gtp_create_context_req(sgsn->gsn, pdp, cbp);
return 0;
} else {
reject_cause = GSM_CAUSE_NET_FAIL;
goto reject;
}
}
/* Check for cause value if it was really successful */
if (cause != GTPCAUSE_ACC_REQ) {
reject_cause = cause_map(gtp2sm_cause_map, cause,
GSM_CAUSE_ACT_REJ_GGSN);
goto reject;
}
/* Activate the SNDCP layer */
sndcp_sm_activate_ind(&pctx->mm->llme->lle[pctx->sapi], pctx->nsapi);
/* Inform others about it */
memset(&sig_data, 0, sizeof(sig_data));
sig_data.pdp = pctx;
osmo_signal_dispatch(SS_SGSN, S_SGSN_PDP_ACT, &sig_data);
/* Send PDP CTX ACT to MS */
return gsm48_tx_gsm_act_pdp_acc(pctx);
reject:
/*
* In case of a timeout pdp will be NULL but we have a valid pointer
* in pctx->lib. For other rejects pctx->lib and pdp might be the
* same.
*/
pctx->state = PDP_STATE_NONE;
if (pctx->lib && pctx->lib != pdp)
pdp_freepdp(pctx->lib);
pctx->lib = NULL;
if (pdp)
pdp_freepdp(pdp);
/* Send PDP CTX ACT REJ to MS */
gsm48_tx_gsm_act_pdp_rej(pctx->mm, pctx->ti, reject_cause,
0, NULL);
sgsn_pdp_ctx_free(pctx);
return EOF;
}