diff options
Diffstat (limited to 'openbsc/src/gprs/gprs_sgsn.c')
| -rw-r--r-- | openbsc/src/gprs/gprs_sgsn.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/openbsc/src/gprs/gprs_sgsn.c b/openbsc/src/gprs/gprs_sgsn.c index e5a54d9b4..8558029a1 100644 --- a/openbsc/src/gprs/gprs_sgsn.c +++ b/openbsc/src/gprs/gprs_sgsn.c @@ -667,6 +667,44 @@ static void drop_one_pdp(struct sgsn_pdp_ctx *pdp) } } +/* + * High-level function to be called for PDP deactivation initiated from SGSN VTY. + * When there are PDP contexts present for a MM context, PDP context will be + * deactivated along with GMM Detach(MM context deletion). + * If there are no PDP present, MM context will be deleted to avoid further + * PDP context activation for that MS. + */ +void drop_gmm_ctx_for_ms(const char *imsi) +{ + OSMO_ASSERT(imsi != NULL); + struct sgsn_mm_ctx *mm; + struct sgsn_pdp_ctx *pdp; + + /* Search the MM context subscriber */ + mm = sgsn_mm_ctx_by_imsi(imsi); + LOGMMCTXP(LOGL_INFO, mm, + "SGSN intiated Deactivate PDP request for %s\n", imsi); + if (mm) { + /* Search the PDP for this subscriber */ + if (llist_empty(&mm->pdp_list)) { + /* + * Deleting mm context for the subscriber when no PDP + * context is present. + */ + gsm0408_gprs_access_cancelled(mm, GMM_CAUSE_GPRS_NOTALLOWED); + LOGMMCTXP(LOGL_NOTICE, mm, "No PDP context to deactivate\n"); + } else { + llist_for_each_entry(pdp, &mm->pdp_list, list) { + gsm48_tx_gsm_deact_pdp_req(pdp, GSM_CAUSE_DEACT_REGULAR); + LOGPDPCTXP(LOGL_INFO, pdp, "PDP Deactivation " + "Successful\n"); + } + } + } else + LOGMMCTXP(LOGL_NOTICE, mm, + "No MM context to deactivate for %s\n", imsi); +} + /* High-level function to be called in case a GGSN has disappeared or * otherwise lost state (recovery procedure) */ int drop_all_pdp_for_ggsn(struct sgsn_ggsn_ctx *ggsn) |