[M] Change in osmo-sgsn[master]: ranap: Clean up RANAP rx path param passing

lynxis lazus has submitted this change. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/40960?usp=email ) ( 2 is the latest approved patch-set. No files were changed between the latest approved patch-set and the submitted one. )Change subject: ranap: Clean up RANAP rx path param passing ...................................................................... ranap: Clean up RANAP rx path param passing Use the osmo-iuh ranap_cn_rx_*_decode2() APIs directly. This allows getting rid of extra "ctx" temporary structs and another level of cb indirection. Take the chance to update most pointers consitfying them. Depends: osmo-iuh.git Change-Id I667dc2ef377c1ceb5b11315458f00b282c143c81 Change-Id: Ib3c00b5105b7ba4bb1a2dad1a14bea233a03c358 --- M TODO-RELEASE M include/osmocom/sgsn/gprs_ranap.h M src/sgsn/gprs_ranap.c 3 files changed, 102 insertions(+), 61 deletions(-) Approvals: Jenkins Builder: Verified fixeria: Looks good to me, but someone else must approve lynxis lazus: Looks good to me, approved diff --git a/TODO-RELEASE b/TODO-RELEASE index 662cdb5..1dfbdb0 100644 --- a/TODO-RELEASE +++ b/TODO-RELEASE @@ -11,3 +11,4 @@ libgtp >1.12.0 gtp_set_cb_update_context_ind(), gtp_update_context_resp() libosmocore >1.10.0 enum gsm48_gprs_ie_mm: GSM48_IE_GMM_UE_NET_CAP, GSM48_IE_GMM_VD_PREF_UE_USAGE libosmo-gsup-client >1.8.0 osmo_gsup_client_is_connected(), osmo_gsup_client_get_rem_addr(), osmo_gsup_client_get_rem_port() +osmo-iuh >1.7.0 ranap multiple params are constified, see osmo-iuh Change-Id I667dc2ef377c1ceb5b11315458f00b282c143c81 diff --git a/include/osmocom/sgsn/gprs_ranap.h b/include/osmocom/sgsn/gprs_ranap.h index 8a6c189..80b57e6 100644 --- a/include/osmocom/sgsn/gprs_ranap.h +++ b/include/osmocom/sgsn/gprs_ranap.h @@ -39,11 +39,14 @@ void sgsn_ranap_iu_release_free(struct sgsn_mm_ctx *ctx, const struct RANAP_Cause *cause); -int sgsn_ranap_iu_rx_cl_msg(struct sgsn_sccp_user_iups *scu_iups, struct osmo_scu_unitdata_param *ud_prim, - uint8_t *data, size_t len); -int sgsn_ranap_iu_rx_co_initial_msg(struct sgsn_sccp_user_iups *scu_iups, const struct osmo_sccp_addr *rem_sccp_addr, - uint32_t conn_id, uint8_t *data, size_t len); -int sgsn_ranap_iu_rx_co_msg(struct ranap_ue_conn_ctx *ue_ctx, uint8_t *data, size_t len); +int sgsn_ranap_iu_rx_cl_msg(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_scu_unitdata_param *ud_prim, + const uint8_t *data, size_t len); +int sgsn_ranap_iu_rx_co_initial_msg(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_sccp_addr *rem_sccp_addr, + uint32_t conn_id, + const uint8_t *data, size_t len); +int sgsn_ranap_iu_rx_co_msg(struct ranap_ue_conn_ctx *ue_ctx, const uint8_t *data, size_t len); #else /* ifndef BUILD_IU */ inline static void sgsn_ranap_iu_free(void *ctx) {}; diff --git a/src/sgsn/gprs_ranap.c b/src/sgsn/gprs_ranap.c index 376fcac..f71db50 100644 --- a/src/sgsn/gprs_ranap.c +++ b/src/sgsn/gprs_ranap.c @@ -60,7 +60,7 @@ uint16_t rnc_id; }; -static int iu_grnc_id_parse(struct osmo_rnc_id *dst, struct RANAP_GlobalRNC_ID *src) +static int iu_grnc_id_parse(struct osmo_rnc_id *dst, const struct RANAP_GlobalRNC_ID *src) { /* The size is coming from arbitrary sender, check it gracefully */ if (src->pLMNidentity.size != 3) { @@ -86,17 +86,6 @@ } #endif -struct ranap_iu_event_sccp_new_ue_context { - struct sgsn_sccp_user_iups *scu_iups; - struct osmo_sccp_addr rem_sccp_addr; - uint32_t conn_id; -}; - -struct ranap_iu_event_cl_msg_ind { - struct sgsn_sccp_user_iups *scu_iups; - struct osmo_scu_unitdata_param *ud_prim; -}; - /* Send RAB activation requests for all PDP contexts */ void activate_pdp_rabs(struct sgsn_mm_ctx *ctx) { @@ -430,9 +419,11 @@ osmo_timer_schedule(&ctx->release_timeout, timeout, 0); } -static int ranap_handle_co_initial_ue(void *ctx, RANAP_InitialUE_MessageIEs_t *ies) +static int ranap_handle_co_initial_ue(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_sccp_addr *rem_sccp_addr, + uint32_t conn_id, + const RANAP_InitialUE_MessageIEs_t *ies) { - struct ranap_iu_event_sccp_new_ue_context *new_ctx = ctx; struct gprs_ra_id ra_id = {}; struct osmo_routing_area_id ra_id2 = {}; struct osmo_rnc_id rnc_id = {}; @@ -470,9 +461,9 @@ gprs_rai_to_osmo(&ra_id2, &ra_id); /* Make sure we know the RNC Id and LAC+RAC coming in on this connection. */ - rnc = iu_rnc_register(&rnc_id, &ra_id2, &new_ctx->rem_sccp_addr); + rnc = iu_rnc_register(&rnc_id, &ra_id2, rem_sccp_addr); - ue = ue_conn_ctx_alloc(rnc, new_ctx->scu_iups, new_ctx->conn_id); + ue = ue_conn_ctx_alloc(rnc, scu_iups, conn_id); OSMO_ASSERT(ue); ue->ra_id = ra_id; @@ -485,7 +476,10 @@ return 0; } -static void cn_ranap_handle_co_initial(void *ctx, ranap_message *message) +static void cn_ranap_handle_co_initial(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_sccp_addr *rem_sccp_addr, + uint32_t conn_id, + const ranap_message *message) { int rc; @@ -498,7 +492,7 @@ message->direction, message->procedureCode); rc = -1; } else - rc = ranap_handle_co_initial_ue(ctx, &message->msg.initialUE_MessageIEs); + rc = ranap_handle_co_initial_ue(scu_iups, rem_sccp_addr, conn_id, &message->msg.initialUE_MessageIEs); if (rc) { LOGP(DRANAP, LOGL_ERROR, "Error in %s (%d)\n", __func__, rc); @@ -506,17 +500,29 @@ } } -int sgsn_ranap_iu_rx_co_initial_msg(struct sgsn_sccp_user_iups *scu_iups, const struct osmo_sccp_addr *rem_sccp_addr, uint32_t conn_id, uint8_t *data, size_t len) +int sgsn_ranap_iu_rx_co_initial_msg(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_sccp_addr *rem_sccp_addr, + uint32_t conn_id, + const uint8_t *data, size_t len) { - struct ranap_iu_event_sccp_new_ue_context new_ctx = { - .scu_iups = scu_iups, - .conn_id = conn_id, - .rem_sccp_addr = *rem_sccp_addr, - }; - return ranap_cn_rx_co(cn_ranap_handle_co_initial, &new_ctx, data, len); + ranap_message message; + int rc; + + rc = ranap_cn_rx_co_decode2(&message, data, len); + if (rc != 0) { + LOGP(DRANAP, LOGL_ERROR, "Not calling cn_ranap_handle_co_initial() due to rc=%d\n", rc); + goto free_ret; + } + + cn_ranap_handle_co_initial(scu_iups, rem_sccp_addr, conn_id, &message); + +free_ret: + /* Free the asn1 structs in message */ + ranap_cn_rx_co_free(&message); + return rc; } -static int ranap_handle_co_dt(void *ctx, RANAP_DirectTransferIEs_t *ies) +static int ranap_handle_co_dt(struct ranap_ue_conn_ctx *ue_ctx, const RANAP_DirectTransferIEs_t *ies) { struct gprs_ra_id _ra_id, *ra_id = NULL; uint16_t _sai, *sai = NULL; @@ -541,7 +547,7 @@ memcpy(msgb_gmmh(msg), ies->nas_pdu.buf, ies->nas_pdu.size); /* Feed into the MM/CC/SMS-CP layer */ - msg->dst = ctx; + msg->dst = ue_ctx; gsm0408_gprs_rcvmsg_iu(msg, ra_id, sai); msgb_free(msg); @@ -549,7 +555,7 @@ return 0; } -static int ranap_handle_co_err_ind(void *ctx, RANAP_ErrorIndicationIEs_t *ies) +static int ranap_handle_co_err_ind(struct ranap_ue_conn_ctx *ue_ctx, const RANAP_ErrorIndicationIEs_t *ies) { if (ies->presenceMask & ERRORINDICATIONIES_RANAP_CAUSE_PRESENT) LOGP(DRANAP, LOGL_ERROR, "Rx Error Indication (%s)\n", @@ -560,19 +566,19 @@ return 0; } -static int ranap_handle_co_iu_rel_req(struct ranap_ue_conn_ctx *ctx, RANAP_Iu_ReleaseRequestIEs_t *ies) +static int ranap_handle_co_iu_rel_req(struct ranap_ue_conn_ctx *ue_ctx, const RANAP_Iu_ReleaseRequestIEs_t *ies) { LOGP(DRANAP, LOGL_INFO, "Received Iu Release Request, Sending Release Command\n"); - ranap_iu_tx_release(ctx, &ies->cause); + ranap_iu_tx_release(ue_ctx, &ies->cause); return 0; } -static int ranap_handle_co_rab_ass_resp(struct ranap_ue_conn_ctx *ctx, RANAP_RAB_AssignmentResponseIEs_t *ies) +static int ranap_handle_co_rab_ass_resp(struct ranap_ue_conn_ctx *ue_ctx, const RANAP_RAB_AssignmentResponseIEs_t *ies) { int rc = -1; LOGP(DRANAP, LOGL_INFO, - "Rx RAB Assignment Response for UE conn_id %u\n", ctx->conn_id); + "Rx RAB Assignment Response for UE conn_id %u\n", ue_ctx->conn_id); if (ies->presenceMask & RAB_ASSIGNMENTRESPONSEIES_RANAP_RAB_SETUPORMODIFIEDLIST_PRESENT) { /* TODO: Iterate over list of SetupOrModifiedList IEs and handle each one */ RANAP_IE_t *ranap_ie = ies->raB_SetupOrModifiedList.raB_SetupOrModifiedList_ies.list.array[0]; @@ -584,7 +590,7 @@ return rc; } - rc = global_iu_event(ctx, RANAP_IU_EVENT_RAB_ASSIGN, &setup_ies); + rc = global_iu_event(ue_ctx, RANAP_IU_EVENT_RAB_ASSIGN, &setup_ies); ranap_free_rab_setupormodifieditemies(&setup_ies); } @@ -594,7 +600,7 @@ } /* Entry point for connection-oriented RANAP message */ -static void cn_ranap_handle_co(void *ctx, ranap_message *message) +static void cn_ranap_handle_co(struct ranap_ue_conn_ctx *ue_ctx, const ranap_message *message) { int rc; @@ -608,14 +614,14 @@ rc = -1; break; case RANAP_ProcedureCode_id_DirectTransfer: - rc = ranap_handle_co_dt(ctx, &message->msg.directTransferIEs); + rc = ranap_handle_co_dt(ue_ctx, &message->msg.directTransferIEs); break; case RANAP_ProcedureCode_id_ErrorIndication: - rc = ranap_handle_co_err_ind(ctx, &message->msg.errorIndicationIEs); + rc = ranap_handle_co_err_ind(ue_ctx, &message->msg.errorIndicationIEs); break; case RANAP_ProcedureCode_id_Iu_ReleaseRequest: /* Iu Release Request */ - rc = ranap_handle_co_iu_rel_req(ctx, &message->msg.iu_ReleaseRequestIEs); + rc = ranap_handle_co_iu_rel_req(ue_ctx, &message->msg.iu_ReleaseRequestIEs); break; default: LOGP(DRANAP, LOGL_ERROR, "Received Initiating Message: unknown Procedure Code %d\n", @@ -628,11 +634,11 @@ switch (message->procedureCode) { case RANAP_ProcedureCode_id_SecurityModeControl: /* Security Mode Complete */ - rc = global_iu_event(ctx, RANAP_IU_EVENT_SECURITY_MODE_COMPLETE, NULL); + rc = global_iu_event(ue_ctx, RANAP_IU_EVENT_SECURITY_MODE_COMPLETE, NULL); break; case RANAP_ProcedureCode_id_Iu_Release: /* Iu Release Complete */ - rc = global_iu_event(ctx, RANAP_IU_EVENT_IU_RELEASE, NULL); + rc = global_iu_event(ue_ctx, RANAP_IU_EVENT_IU_RELEASE, NULL); if (rc) { LOGP(DRANAP, LOGL_ERROR, "Iu Release event: Iu Event callback returned %d\n", rc); @@ -649,7 +655,7 @@ switch (message->procedureCode) { case RANAP_ProcedureCode_id_RAB_Assignment: /* RAB Assignment Response */ - rc = ranap_handle_co_rab_ass_resp(ctx, &message->msg.raB_AssignmentResponseIEs); + rc = ranap_handle_co_rab_ass_resp(ue_ctx, &message->msg.raB_AssignmentResponseIEs); break; default: LOGP(DRANAP, LOGL_ERROR, "Received Outcome: unknown Procedure Code %d\n", @@ -672,14 +678,30 @@ } } -int sgsn_ranap_iu_rx_co_msg(struct ranap_ue_conn_ctx *ue_ctx, uint8_t *data, size_t len) +int sgsn_ranap_iu_rx_co_msg(struct ranap_ue_conn_ctx *ue_ctx, const uint8_t *data, size_t len) { - return ranap_cn_rx_co(cn_ranap_handle_co, ue_ctx, data, len); + ranap_message message; + int rc; + + rc = ranap_cn_rx_co_decode2(&message, data, len); + if (rc != 0) { + LOGP(DRANAP, LOGL_ERROR, "Not calling cn_ranap_handle_co() due to rc=%d\n", rc); + goto free_ret; + } + + cn_ranap_handle_co(ue_ctx, &message); + +free_ret: + /* Free the asn1 structs in message */ + ranap_cn_rx_co_free(&message); + return rc; } -static int ranap_handle_cl_reset_req(struct ranap_iu_event_cl_msg_ind *cl_msg_ind, RANAP_ResetIEs_t *ies) +static int ranap_handle_cl_reset_req(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_scu_unitdata_param *ud_prim, + const RANAP_ResetIEs_t *ies) { - RANAP_GlobalRNC_ID_t *grnc_id = NULL; + const RANAP_GlobalRNC_ID_t *grnc_id = NULL; struct msgb *resp; /* FIXME: verify ies.cN_DomainIndicator */ @@ -692,10 +714,12 @@ if (!resp) return -ENOMEM; resp->l2h = resp->data; - return osmo_sccp_tx_unitdata_msg(cl_msg_ind->scu_iups->scu, &cl_msg_ind->scu_iups->local_sccp_addr, &cl_msg_ind->ud_prim->calling_addr, resp); + return osmo_sccp_tx_unitdata_msg(scu_iups->scu, &scu_iups->local_sccp_addr, &ud_prim->calling_addr, resp); } -static int ranap_handle_cl_err_ind(struct ranap_iu_event_cl_msg_ind *cl_msg_ind, RANAP_ErrorIndicationIEs_t *ies) +static int ranap_handle_cl_err_ind(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_scu_unitdata_param *ud_prim, + const RANAP_ErrorIndicationIEs_t *ies) { if (ies->presenceMask & ERRORINDICATIONIES_RANAP_CAUSE_PRESENT) LOGP(DRANAP, LOGL_ERROR, "Rx Error Indication (%s)\n", @@ -707,9 +731,10 @@ } /* Entry point for connection-less RANAP message */ -static void cn_ranap_handle_cl(void *ctx, ranap_message *message) +static void cn_ranap_handle_cl(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_scu_unitdata_param *ud_prim, + const ranap_message *message) { - struct ranap_iu_event_cl_msg_ind *cl_msg_ind = ctx; int rc; switch (message->direction) { @@ -717,10 +742,10 @@ switch (message->procedureCode) { case RANAP_ProcedureCode_id_Reset: /* received reset.req, send reset.resp */ - rc = ranap_handle_cl_reset_req(cl_msg_ind, &message->msg.resetIEs); + rc = ranap_handle_cl_reset_req(scu_iups, ud_prim, &message->msg.resetIEs); break; case RANAP_ProcedureCode_id_ErrorIndication: - rc = ranap_handle_cl_err_ind(cl_msg_ind, &message->msg.errorIndicationIEs); + rc = ranap_handle_cl_err_ind(scu_iups, ud_prim, &message->msg.errorIndicationIEs); break; default: rc = -1; @@ -741,11 +766,23 @@ } } -int sgsn_ranap_iu_rx_cl_msg(struct sgsn_sccp_user_iups *scu_iups, struct osmo_scu_unitdata_param *ud_prim, uint8_t *data, size_t len) +int sgsn_ranap_iu_rx_cl_msg(struct sgsn_sccp_user_iups *scu_iups, + const struct osmo_scu_unitdata_param *ud_prim, + const uint8_t *data, size_t len) { - struct ranap_iu_event_cl_msg_ind cl_msg_ind = { - .scu_iups = scu_iups, - .ud_prim = ud_prim, - }; - return ranap_cn_rx_cl(cn_ranap_handle_cl, &cl_msg_ind, data, len); + ranap_message message; + int rc; + + rc = ranap_cn_rx_cl_decode2(&message, data, len); + if (rc != 0) { + LOGP(DRANAP, LOGL_ERROR, "Not calling cn_ranap_handle_cl() due to rc=%d\n", rc); + goto free_ret; + } + + cn_ranap_handle_cl(scu_iups, ud_prim, &message); + +free_ret: + /* Free the asn1 structs in message */ + ranap_cn_rx_cl_free(&message); + return rc; } -- To view, visit https://gerrit.osmocom.org/c/osmo-sgsn/+/40960?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: merged Gerrit-Project: osmo-sgsn Gerrit-Branch: master Gerrit-Change-Id: Ib3c00b5105b7ba4bb1a2dad1a14bea233a03c358 Gerrit-Change-Number: 40960 Gerrit-PatchSet: 3 Gerrit-Owner: pespin <pespin(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: lynxis lazus <lynxis(a)fe80.eu>