diff options
| author | Daniel Willmann <dwillmann@sysmocom.de> | 2016-05-11 12:43:47 +0200 |
|---|---|---|
| committer | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2016-09-02 04:29:36 +0200 |
| commit | 21b269f81454919a379d22b9c2be74bb680be500 (patch) | |
| tree | 5992fb605de8076e9ccb8e55217203d9905f5c2a /openbsc | |
| parent | c17cdb40b545a5006e9b97e76559d7a4b46e030d (diff) | |
IuPS: Change GTP-U endpoint to SGSN in PMM_IDLE and page UE when data arrives
Change-Id: I47b73a40cbdda6b7c31fb2767f74f9f93d84056b
Diffstat (limited to 'openbsc')
| -rw-r--r-- | openbsc/include/openbsc/sgsn.h | 1 | ||||
| -rw-r--r-- | openbsc/src/gprs/gprs_gmm.c | 13 | ||||
| -rw-r--r-- | openbsc/src/gprs/sgsn_libgtp.c | 19 |
3 files changed, 32 insertions, 1 deletions
diff --git a/openbsc/include/openbsc/sgsn.h b/openbsc/include/openbsc/sgsn.h index 19496cbf8..22809b794 100644 --- a/openbsc/include/openbsc/sgsn.h +++ b/openbsc/include/openbsc/sgsn.h @@ -138,6 +138,7 @@ struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn, uint16_t nsapi, struct tlv_parsed *tp); int sgsn_delete_pdp_ctx(struct sgsn_pdp_ctx *pctx); +void sgsn_pdp_upd_gtp_u(struct sgsn_pdp_ctx *pdp, void *addr, size_t alen); /* gprs_sndcp.c */ diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c index cb3d4eeb7..3d7464755 100644 --- a/openbsc/src/gprs/gprs_gmm.c +++ b/openbsc/src/gprs/gprs_gmm.c @@ -109,6 +109,16 @@ static const struct tlv_definition gsm48_sm_att_tlvdef = { static int gsm48_gmm_authorize(struct sgsn_mm_ctx *ctx); +static void mmctx_change_gtpu_endpoints_to_sgsn(struct sgsn_mm_ctx *mm_ctx) +{ + struct sgsn_pdp_ctx *pdp; + llist_for_each_entry(pdp, &mm_ctx->pdp_list, list) { + sgsn_pdp_upd_gtp_u(pdp, + &sgsn->cfg.gtp_listenaddr.sin_addr, + sizeof(sgsn->cfg.gtp_listenaddr.sin_addr)); + } +} + void mmctx_set_pmm_state(struct sgsn_mm_ctx *ctx, enum gprs_pmm_state state) { if (ctx->pmm_state == state) @@ -120,7 +130,8 @@ void mmctx_set_pmm_state(struct sgsn_mm_ctx *ctx, enum gprs_pmm_state state) { switch (state) { case PMM_IDLE: - /* TODO: Change GTP-U endpoints to SGSN, start RA Upd timer */ + /* TODO: start RA Upd timer */ + mmctx_change_gtpu_endpoints_to_sgsn(ctx); break; case PMM_CONNECTED: break; diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c index 35d5dab3d..04bd40aeb 100644 --- a/openbsc/src/gprs/sgsn_libgtp.c +++ b/openbsc/src/gprs/sgsn_libgtp.c @@ -401,6 +401,13 @@ reject: return EOF; } +void sgsn_pdp_upd_gtp_u(struct sgsn_pdp_ctx *pdp, void *addr, size_t alen) +{ + pdp->lib->gsnlu.l = alen; + memcpy(pdp->lib->gsnlu.v, addr, alen); + gtp_update_context(pdp->ggsn->gsn, pdp->lib, pdp, &pdp->lib->hisaddr0); +} + #ifdef BUILD_IU /* Callback for RAB assignment response */ int sgsn_ranap_rab_ass_resp(struct sgsn_mm_ctx *ctx, RANAP_RAB_SetupOrModifiedItemIEs_t *setup_ies) @@ -621,6 +628,18 @@ static int cb_data_ind(struct pdp_t *lib, void *packet, unsigned int len) return -EIO; } + if (mm->ran_type == MM_CTX_T_UTRAN_Iu) { +#ifdef BUILD_IU + /* Ignore the packet for now and page the UE to get the RAB + * reestablished */ + iu_page_ps(mm->imsi, &mm->p_tmsi, mm->ra.lac, mm->ra.rac); + + return 0; +#else + return -ENOTSUP; +#endif + } + msg = msgb_alloc_headroom(len+256, 128, "GTP->SNDCP"); ud = msgb_put(msg, len); memcpy(ud, packet, len); |