IuPS: Introduce function to change PMM state

This is where IuPS will redirect GTP-U endpoints in a subsequent commit.

Also add comprehensive logging of pmm_state transitions.

Change-Id: I7c2cd1abc1805659b01dffffff31c49fe5161086
This commit is contained in:
Daniel Willmann 2016-05-11 12:42:54 +02:00 committed by Neels Hofmeyr
parent fac9758820
commit c17cdb40b5
1 changed files with 29 additions and 6 deletions

View File

@ -109,6 +109,29 @@ static const struct tlv_definition gsm48_sm_att_tlvdef = {
static int gsm48_gmm_authorize(struct sgsn_mm_ctx *ctx);
void mmctx_set_pmm_state(struct sgsn_mm_ctx *ctx, enum gprs_pmm_state state)
{
if (ctx->pmm_state == state)
return;
LOGMMCTXP(LOGL_INFO, ctx, "Changing PMM state from %i to %i\n", ctx->pmm_state, state);
if (ctx->ran_type == MM_CTX_T_UTRAN_Iu)
{
switch (state) {
case PMM_IDLE:
/* TODO: Change GTP-U endpoints to SGSN, start RA Upd timer */
break;
case PMM_CONNECTED:
break;
default:
break;
}
}
ctx->pmm_state = state;
}
#ifdef BUILD_IU
int sgsn_ranap_rab_ass_resp(struct sgsn_mm_ctx *ctx, RANAP_RAB_SetupOrModifiedItemIEs_t *setup_ies);
int sgsn_ranap_iu_event(struct ue_conn_ctx *ctx, enum iu_event_type type, void *data)
@ -132,7 +155,7 @@ int sgsn_ranap_iu_event(struct ue_conn_ctx *ctx, enum iu_event_type type, void *
/* Clean up ue_conn_ctx here */
LOGMMCTXP(LOGL_INFO, mm, "IU release for imsi %s\n", mm->imsi);
if (mm->pmm_state == PMM_CONNECTED)
mm->pmm_state = PMM_IDLE;
mmctx_set_pmm_state(mm, PMM_IDLE);
rc = 0;
break;
case IU_EVENT_SECURITY_MODE_COMPLETE:
@ -243,7 +266,8 @@ static void mm_ctx_cleanup_free(struct sgsn_mm_ctx *ctx, const char *log_text)
/* Mark MM state as deregistered */
ctx->mm_state = GMM_DEREGISTERED;
ctx->pmm_state = PMM_DETACHED;
mmctx_set_pmm_state(ctx, PMM_DETACHED);
sgsn_mm_ctx_cleanup_free(ctx);
}
@ -854,9 +878,8 @@ static int gsm48_gmm_authorize(struct sgsn_mm_ctx *ctx)
return gsm48_tx_gmm_att_ack(ctx);
#ifdef BUILD_IU
case GSM48_MT_GMM_SERVICE_REQ:
/* TODO: PMM State transition */
ctx->pending_req = 0;
ctx->pmm_state = PMM_CONNECTED;
mmctx_set_pmm_state(ctx, PMM_CONNECTED);
rc = gsm48_tx_gmm_service_ack(ctx);
if (ctx->iu.service.type != GPRS_SERVICE_T_SIGNALLING)
@ -1798,7 +1821,7 @@ static int gsm0408_rcv_gmm(struct sgsn_mm_ctx *mmctx, struct msgb *msg,
mmctx->gb.tlli_new);
}
mmctx->mm_state = GMM_REGISTERED_NORMAL;
mmctx->pmm_state = PMM_CONNECTED;
mmctx_set_pmm_state(mmctx, PMM_CONNECTED);
rc = 0;
memset(&sig_data, 0, sizeof(sig_data));
@ -1821,7 +1844,7 @@ static int gsm0408_rcv_gmm(struct sgsn_mm_ctx *mmctx, struct msgb *msg,
mmctx->gb.tlli_new);
}
mmctx->mm_state = GMM_REGISTERED_NORMAL;
mmctx->pmm_state = PMM_CONNECTED;
mmctx_set_pmm_state(mmctx, PMM_CONNECTED);
rc = 0;
memset(&sig_data, 0, sizeof(sig_data));