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sgsn_ranap_iu_event: handle some events without valid MM context

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Change-Id: Ia7e74087d56996104b6d3935b1cf12166ff67f3a
This commit is contained in:
Neels Hofmeyr
2016-09-22 20:00:16 +02:00
parent e708d74658
commit 0ba1543220
1 changed files with 13 additions and 5 deletions
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18
openbsc/src/gprs/gprs_gmm.c
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@@ -151,25 +151,33 @@ int sgsn_ranap_iu_event(struct ue_conn_ctx *ctx, enum iu_event_type type, void *
int rc = -1; int rc = -1;
mm = sgsn_mm_ctx_by_ue_ctx(ctx); mm = sgsn_mm_ctx_by_ue_ctx(ctx);
if (!mm) {
LOGP(DRANAP, LOGL_NOTICE, "Cannot find mm ctx for IU event %i!\n", type); #define REQUIRE_MM \
return rc; if (!mm) { \
LOGP(DRANAP, LOGL_NOTICE, "Cannot find mm ctx for IU event %i!\n", type); \
return rc; \
} }
switch (type) { switch (type) {
case IU_EVENT_RAB_ASSIGN: case IU_EVENT_RAB_ASSIGN:
REQUIRE_MM
rc = sgsn_ranap_rab_ass_resp(mm, (RANAP_RAB_SetupOrModifiedItemIEs_t *)data); rc = sgsn_ranap_rab_ass_resp(mm, (RANAP_RAB_SetupOrModifiedItemIEs_t *)data);
break; break;
case IU_EVENT_IU_RELEASE: case IU_EVENT_IU_RELEASE:
/* fall thru */ /* fall thru */
case IU_EVENT_LINK_INVALIDATED: case IU_EVENT_LINK_INVALIDATED:
/* Clean up ue_conn_ctx here */ /* Clean up ue_conn_ctx here */
LOGMMCTXP(LOGL_INFO, mm, "IU release for imsi %s\n", mm->imsi); if (mm)
if (mm->pmm_state == PMM_CONNECTED) LOGMMCTXP(LOGL_INFO, mm, "IU release for imsi %s\n", mm->imsi);
else
LOGMMCTXP(LOGL_INFO, mm, "IU release for UE conn 0x%x\n",
ctx->conn_id);
if (mm && mm->pmm_state == PMM_CONNECTED)
mmctx_set_pmm_state(mm, PMM_IDLE); mmctx_set_pmm_state(mm, PMM_IDLE);
rc = 0; rc = 0;
break; break;
case IU_EVENT_SECURITY_MODE_COMPLETE: case IU_EVENT_SECURITY_MODE_COMPLETE:
REQUIRE_MM
/* Continue authentication here */ /* Continue authentication here */
mm->iu.ue_ctx->integrity_active = 1; mm->iu.ue_ctx->integrity_active = 1;
rc = gsm48_gmm_authorize(mm); rc = gsm48_gmm_authorize(mm);