IuPS: Change GTP-U endpoint to SGSN in PMM_IDLE and page UE when data arrives
Change-Id: I47b73a40cbdda6b7c31fb2767f74f9f93d84056b
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c17cdb40b5
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21b269f814
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@ -138,6 +138,7 @@ struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn,
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uint16_t nsapi,
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struct tlv_parsed *tp);
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int sgsn_delete_pdp_ctx(struct sgsn_pdp_ctx *pctx);
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void sgsn_pdp_upd_gtp_u(struct sgsn_pdp_ctx *pdp, void *addr, size_t alen);
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/* gprs_sndcp.c */
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@ -109,6 +109,16 @@ static const struct tlv_definition gsm48_sm_att_tlvdef = {
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static int gsm48_gmm_authorize(struct sgsn_mm_ctx *ctx);
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static void mmctx_change_gtpu_endpoints_to_sgsn(struct sgsn_mm_ctx *mm_ctx)
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{
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struct sgsn_pdp_ctx *pdp;
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llist_for_each_entry(pdp, &mm_ctx->pdp_list, list) {
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sgsn_pdp_upd_gtp_u(pdp,
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&sgsn->cfg.gtp_listenaddr.sin_addr,
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sizeof(sgsn->cfg.gtp_listenaddr.sin_addr));
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}
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}
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void mmctx_set_pmm_state(struct sgsn_mm_ctx *ctx, enum gprs_pmm_state state)
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{
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if (ctx->pmm_state == state)
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@ -120,7 +130,8 @@ void mmctx_set_pmm_state(struct sgsn_mm_ctx *ctx, enum gprs_pmm_state state)
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{
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switch (state) {
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case PMM_IDLE:
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/* TODO: Change GTP-U endpoints to SGSN, start RA Upd timer */
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/* TODO: start RA Upd timer */
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mmctx_change_gtpu_endpoints_to_sgsn(ctx);
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break;
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case PMM_CONNECTED:
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break;
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@ -401,6 +401,13 @@ reject:
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return EOF;
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}
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void sgsn_pdp_upd_gtp_u(struct sgsn_pdp_ctx *pdp, void *addr, size_t alen)
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{
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pdp->lib->gsnlu.l = alen;
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memcpy(pdp->lib->gsnlu.v, addr, alen);
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gtp_update_context(pdp->ggsn->gsn, pdp->lib, pdp, &pdp->lib->hisaddr0);
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}
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#ifdef BUILD_IU
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/* Callback for RAB assignment response */
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int sgsn_ranap_rab_ass_resp(struct sgsn_mm_ctx *ctx, RANAP_RAB_SetupOrModifiedItemIEs_t *setup_ies)
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@ -621,6 +628,18 @@ static int cb_data_ind(struct pdp_t *lib, void *packet, unsigned int len)
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return -EIO;
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}
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if (mm->ran_type == MM_CTX_T_UTRAN_Iu) {
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#ifdef BUILD_IU
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/* Ignore the packet for now and page the UE to get the RAB
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* reestablished */
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iu_page_ps(mm->imsi, &mm->p_tmsi, mm->ra.lac, mm->ra.rac);
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return 0;
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#else
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return -ENOTSUP;
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#endif
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}
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msg = msgb_alloc_headroom(len+256, 128, "GTP->SNDCP");
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ud = msgb_put(msg, len);
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memcpy(ud, packet, len);
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