From 4087e066547b1377f743c884e8950acf7c0d82c5 Mon Sep 17 00:00:00 2001 From: Max Date: Tue, 26 Mar 2019 11:00:19 +0100 Subject: Drop Iu*S support and related dependencies There's optional libiu for Iu*S support but it's just a leftover from pre repo-split times: * it's not used by any code * it's not checked by gerrit verification in osmo-ci * it's disabled by default * it's not supported in .deb packages Instead of dragging old code in unknown stage of bit-rotting, let's just drop it completely. Change-Id: Id5678a74504b4456aba0438ccc34731770801128 --- openbsc/configure.ac | 13 - openbsc/include/openbsc/Makefile.am | 1 - openbsc/include/openbsc/iu.h | 62 --- openbsc/src/Makefile.am | 7 - openbsc/src/libiu/Makefile.am | 28 -- openbsc/src/libiu/iu.c | 757 ------------------------------------ openbsc/src/libiu/iu_vty.c | 50 --- 7 files changed, 918 deletions(-) delete mode 100644 openbsc/include/openbsc/iu.h delete mode 100644 openbsc/src/libiu/Makefile.am delete mode 100644 openbsc/src/libiu/iu.c delete mode 100644 openbsc/src/libiu/iu_vty.c (limited to 'openbsc') diff --git a/openbsc/configure.ac b/openbsc/configure.ac index 4b432b143..704c7d7e1 100644 --- a/openbsc/configure.ac +++ b/openbsc/configure.ac @@ -98,18 +98,6 @@ fi AM_CONDITIONAL(BUILD_MGCP_TRANSCODING, test "x$osmo_ac_mgcp_transcoding" = "xyes") AC_SUBST(osmo_ac_mgcp_transcoding) -# Enable/disable 3G aka IuPS + IuCS support? -AC_ARG_ENABLE([iu], [AS_HELP_STRING([--enable-iu], [Build 3G support, aka IuPS and IuCS interfaces])], - [osmo_ac_iu="$enableval"],[osmo_ac_iu="no"]) -if test "x$osmo_ac_iu" = "xyes" ; then - PKG_CHECK_MODULES(LIBASN1C, libasn1c >= 0.9.31) - PKG_CHECK_MODULES(LIBOSMORANAP, libosmo-ranap >= 0.3.0) - PKG_CHECK_MODULES(LIBOSMOSIGTRAN, libosmo-sigtran >= 0.9.0) - AC_DEFINE(BUILD_IU, 1, [Define if we want to build IuPS and IuCS interfaces support]) -fi -AM_CONDITIONAL(BUILD_IU, test "x$osmo_ac_iu" = "xyes") -AC_SUBST(osmo_ac_iu) - dnl checks for header files AC_HEADER_STDC @@ -252,7 +240,6 @@ AC_OUTPUT( src/libmgcp/Makefile src/libcommon/Makefile src/libfilter/Makefile - src/libiu/Makefile src/libcommon-cs/Makefile src/osmo-nitb/Makefile src/osmo-bsc/Makefile diff --git a/openbsc/include/openbsc/Makefile.am b/openbsc/include/openbsc/Makefile.am index 1fa30d56c..59b2231f3 100644 --- a/openbsc/include/openbsc/Makefile.am +++ b/openbsc/include/openbsc/Makefile.am @@ -32,7 +32,6 @@ noinst_HEADERS = \ handover.h \ handover_decision.h \ ipaccess.h \ - iu.h \ meas_feed.h \ meas_rep.h \ mgcp.h \ diff --git a/openbsc/include/openbsc/iu.h b/openbsc/include/openbsc/iu.h deleted file mode 100644 index f973ac1ba..000000000 --- a/openbsc/include/openbsc/iu.h +++ /dev/null @@ -1,62 +0,0 @@ -#pragma once - -#include - -struct sgsn_pdp_ctx; -struct msgb; -struct gprs_ra_id; - -struct RANAP_RAB_SetupOrModifiedItemIEs_s; -struct RANAP_GlobalRNC_ID; - -struct ue_conn_ctx { - struct llist_head list; - struct osmo_sccp_link *link; - uint32_t conn_id; - int integrity_active; - struct gprs_ra_id ra_id; -}; - -enum iu_event_type { - IU_EVENT_RAB_ASSIGN, - IU_EVENT_SECURITY_MODE_COMPLETE, - IU_EVENT_IU_RELEASE, /* An actual Iu Release message was received */ - IU_EVENT_LINK_INVALIDATED, /* A SUA link was lost or closed down */ - /* FIXME: maybe IU_EVENT_IU_RELEASE and IU_EVENT_LINK_INVALIDATED - * should be combined to one generic event that simply means the - * ue_conn_ctx should no longer be used, for whatever reason. */ -}; - -extern const struct value_string iu_event_type_names[]; -static inline const char *iu_event_type_str(enum iu_event_type e) -{ - return get_value_string(iu_event_type_names, e); -} - -/* Implementations of iu_recv_cb_t shall find the ue_conn_ctx in msg->dst. */ -typedef int (* iu_recv_cb_t )(struct msgb *msg, struct gprs_ra_id *ra_id, - /* TODO "gprs_" in generic CS+PS domain ^ */ - uint16_t *sai); - -typedef int (* iu_event_cb_t )(struct ue_conn_ctx *ue_ctx, - enum iu_event_type type, void *data); - -typedef int (* iu_rab_ass_resp_cb_t )(struct ue_conn_ctx *ue_ctx, uint8_t rab_id, - struct RANAP_RAB_SetupOrModifiedItemIEs_s *setup_ies); - -int iu_init(void *ctx, const char *listen_addr, uint16_t listen_port, - iu_recv_cb_t iu_recv_cb, iu_event_cb_t iu_event_cb); - -void iu_link_del(struct osmo_sccp_link *link); - -int iu_tx(struct msgb *msg, uint8_t sapi); - -int iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac); -int iu_page_ps(const char *imsi, const uint32_t *ptmsi, uint16_t lac, uint8_t rac); - -int iu_rab_act(struct ue_conn_ctx *ue_ctx, struct msgb *msg); -int iu_rab_deact(struct ue_conn_ctx *ue_ctx, uint8_t rab_id); -int iu_tx_sec_mode_cmd(struct ue_conn_ctx *uectx, struct gsm_auth_tuple *tp, - int send_ck, int new_key); - -void iu_vty_init(int *asn_debug_p); diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am index 86d6f8f83..46f30d7c1 100644 --- a/openbsc/src/Makefile.am +++ b/openbsc/src/Makefile.am @@ -30,13 +30,6 @@ SUBDIRS = \ libcommon-cs \ $(NULL) -# Conditional Libraries -if BUILD_IU -SUBDIRS += \ - libiu \ - $(NULL) -endif - # Programs SUBDIRS += \ osmo-nitb \ diff --git a/openbsc/src/libiu/Makefile.am b/openbsc/src/libiu/Makefile.am deleted file mode 100644 index e5f9e2751..000000000 --- a/openbsc/src/libiu/Makefile.am +++ /dev/null @@ -1,28 +0,0 @@ -AM_CPPFLAGS = \ - $(all_includes) \ - -I$(top_srcdir)/include \ - -I$(top_builddir) \ - $(NULL) - -AM_CFLAGS = \ - -Wall \ - $(COVERAGE_CFLAGS) \ - $(LIBCRYPTO_CFLAGS) \ - $(LIBASN1C_CFLAGS) \ - $(LIBOSMOCORE_CFLAGS) \ - $(LIBOSMOVTY_CFLAGS) \ - $(LIBOSMOGSM_CFLAGS) \ - $(LIBOSMOABIS_CFLAGS) \ - $(LIBOSMOSIGTRAN_CFLAGS) \ - $(LIBOSMORANAP_CFLAGS) \ - $(NULL) - -noinst_LIBRARIES = \ - libiu.a \ - $(NULL) - -libiu_a_SOURCES = \ - iu.c \ - iu_vty.c \ - $(NULL) - diff --git a/openbsc/src/libiu/iu.c b/openbsc/src/libiu/iu.c deleted file mode 100644 index b4e7ac855..000000000 --- a/openbsc/src/libiu/iu.c +++ /dev/null @@ -1,757 +0,0 @@ -/* Common parts of IuCS and IuPS interfaces implementation */ - -/* (C) 2016 by sysmocom s.f.m.c. GmbH - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . - * - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include -#include -#include - -#include -#include -#include - -#include - -#include -#include -#include -#include - -#include - -/* Parsed global RNC id. See also struct RANAP_GlobalRNC_ID, and note that the - * PLMN identity is a BCD representation of the MCC and MNC. - * See iu_grnc_id_parse(). */ -struct iu_grnc_id { - struct osmo_plmn_id plmn; - uint16_t rnc_id; -}; - -/* A remote RNC (Radio Network Controller, like BSC but for UMTS) that has - * called us and is currently reachable at the given osmo_sccp_link. So, when we - * know a LAC for a subscriber, we can page it at the RNC matching that LAC or - * RAC. An HNB-GW typically presents itself as if it were a single RNC, even - * though it may have several RNCs in hNodeBs connected to it. Those will then - * share the same RNC id, which they actually receive and adopt from the HNB-GW - * in the HNBAP HNB REGISTER ACCEPT message. */ -struct iu_rnc { - struct llist_head entry; - - uint16_t rnc_id; - uint16_t lac; /* Location Area Code (used for CS and PS) */ - uint8_t rac; /* Routing Area Code (used for PS only) */ - struct osmo_sccp_link *link; -}; - -void *talloc_iu_ctx; - -int asn1_xer_print = 1; -void *talloc_asn1_ctx; - -iu_recv_cb_t global_iu_recv_cb = NULL; -iu_event_cb_t global_iu_event_cb = NULL; - -static LLIST_HEAD(ue_conn_ctx_list); -static LLIST_HEAD(rnc_list); - -const struct value_string iu_event_type_names[] = { - OSMO_VALUE_STRING(IU_EVENT_RAB_ASSIGN), - OSMO_VALUE_STRING(IU_EVENT_SECURITY_MODE_COMPLETE), - OSMO_VALUE_STRING(IU_EVENT_IU_RELEASE), - OSMO_VALUE_STRING(IU_EVENT_LINK_INVALIDATED), - { 0, NULL } -}; - -struct ue_conn_ctx *ue_conn_ctx_alloc(struct osmo_sccp_link *link, uint32_t conn_id) -{ - struct ue_conn_ctx *ctx = talloc_zero(talloc_iu_ctx, struct ue_conn_ctx); - - ctx->link = link; - ctx->conn_id = conn_id; - llist_add(&ctx->list, &ue_conn_ctx_list); - - return ctx; -} - -struct ue_conn_ctx *ue_conn_ctx_find(struct osmo_sccp_link *link, - uint32_t conn_id) -{ - struct ue_conn_ctx *ctx; - - llist_for_each_entry(ctx, &ue_conn_ctx_list, list) { - if (ctx->link == link && ctx->conn_id == conn_id) - return ctx; - } - return NULL; -} - -static struct iu_rnc *iu_rnc_alloc(uint16_t rnc_id, uint16_t lac, uint8_t rac, - struct osmo_sccp_link *link) -{ - struct iu_rnc *rnc = talloc_zero(talloc_iu_ctx, struct iu_rnc); - - rnc->rnc_id = rnc_id; - rnc->lac = lac; - rnc->rac = rac; - rnc->link = link; - llist_add(&rnc->entry, &rnc_list); - - LOGP(DRANAP, LOGL_NOTICE, "New RNC %d (LAC=%d RAC=%d)\n", - rnc->rnc_id, rnc->lac, rnc->rac); - - return rnc; -} - -static struct iu_rnc *iu_rnc_register(uint16_t rnc_id, uint16_t lac, - uint8_t rac, struct osmo_sccp_link *link) -{ - struct iu_rnc *rnc; - llist_for_each_entry(rnc, &rnc_list, entry) { - if (rnc->rnc_id != rnc_id) - continue; - - /* We have this RNC Id registered already. Make sure that the - * details match. */ - - /* TODO should a mismatch be an error? */ - if (rnc->lac != lac || rnc->rac != rac) - LOGP(DRANAP, LOGL_NOTICE, "RNC %d changes its details:" - " LAC=%d RAC=%d --> LAC=%d RAC=%d\n", - rnc->rnc_id, rnc->lac, rnc->rac, - lac, rac); - rnc->lac = lac; - rnc->rac = rac; - - if (link && rnc->link != link) - LOGP(DRANAP, LOGL_NOTICE, "RNC %d on new link" - " (LAC=%d RAC=%d)\n", - rnc->rnc_id, rnc->lac, rnc->rac); - rnc->link = link; - return rnc; - } - - /* Not found, make a new one. */ - return iu_rnc_alloc(rnc_id, lac, rac, link); -} - -/* Discard/invalidate all ue_conn_ctx and iu_rnc entries that reference the - * given link, since this link is invalid and about to be deallocated. For - * each ue_conn_ctx, invoke the iu_event_cb_t with IU_EVENT_LINK_INVALIDATED. - */ -void iu_link_del(struct osmo_sccp_link *link) -{ - struct iu_rnc *rnc, *rnc_next; - llist_for_each_entry_safe(rnc, rnc_next, &rnc_list, entry) { - if (!rnc->link) - continue; - if (rnc->link != link) - continue; - rnc->link = NULL; - llist_del(&rnc->entry); - talloc_free(rnc); - } - - struct ue_conn_ctx *uec, *uec_next; - llist_for_each_entry_safe(uec, uec_next, &ue_conn_ctx_list, list) { - if (uec->link != link) - continue; - uec->link = NULL; - global_iu_event_cb(uec, IU_EVENT_LINK_INVALIDATED, NULL); - } -} - -/*********************************************************************** - * RANAP handling - ***********************************************************************/ - -int iu_rab_act(struct ue_conn_ctx *ue_ctx, struct msgb *msg) -{ - struct osmo_scu_prim *prim; - - /* wrap RANAP message in SCCP N-DATA.req */ - prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim)); - prim->u.data.conn_id = ue_ctx->conn_id; - osmo_prim_init(&prim->oph, - SCCP_SAP_USER, - OSMO_SCU_PRIM_N_DATA, - PRIM_OP_REQUEST, - msg); - return osmo_sua_user_link_down(ue_ctx->link, &prim->oph); -} - -int iu_rab_deact(struct ue_conn_ctx *ue_ctx, uint8_t rab_id) -{ - /* FIXME */ - return -1; -} - -int iu_tx_sec_mode_cmd(struct ue_conn_ctx *uectx, struct gsm_auth_tuple *tp, - int send_ck, int new_key) -{ - struct osmo_scu_prim *prim; - struct msgb *msg; - uint8_t ik[16]; - uint8_t ck[16]; - unsigned int i; - - /* C5 function to derive IK from Kc */ - for (i = 0; i < 4; i++) - ik[i] = tp->vec.kc[i] ^ tp->vec.kc[i+4]; - memcpy(ik+4, tp->vec.kc, 8); - for (i = 12; i < 16; i++) - ik[i] = ik[i-12]; - - if (send_ck) { - /* C4 function to derive CK from Kc */ - memcpy(ck, tp->vec.kc, 8); - memcpy(ck+8, tp->vec.kc, 8); - } - - /* create RANAP message */ - msg = ranap_new_msg_sec_mod_cmd(ik, send_ck? ck : NULL, new_key ? RANAP_KeyStatus_new : RANAP_KeyStatus_old); - msg->l2h = msg->data; - /* wrap RANAP message in SCCP N-DATA.req */ - prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim)); - prim->u.data.conn_id = uectx->conn_id; - osmo_prim_init(&prim->oph, SCCP_SAP_USER, - OSMO_SCU_PRIM_N_DATA, - PRIM_OP_REQUEST, msg); - osmo_sua_user_link_down(uectx->link, &prim->oph); - - return 0; -} - -static int iu_grnc_id_parse(struct iu_grnc_id *dst, - struct RANAP_GlobalRNC_ID *src) -{ - /* The size is coming from arbitrary sender, check it gracefully */ - if (src->pLMNidentity.size != 3) { - LOGP(DRANAP, LOGL_ERROR, "Invalid PLMN Identity size:" - " should be 3, is %d\n", src->pLMNidentity.size); - return -1; - } - osmo_plmn_from_bcd(&src->pLMNidentity.buf[0], &dst->plmn); - dst->rnc_id = (uint16_t)src->rNC_ID; - return 0; -} - -#if 0 - -- not used at present -- -static int iu_grnc_id_compose(struct iu_grnc_id *src, - struct RANAP_GlobalRNC_ID *dst) -{ - /* The caller must ensure proper size */ - OSMO_ASSERT(dst->pLMNidentity.size == 3); - gsm48_mcc_mnc_to_bcd(&dst->pLMNidentity.buf[0], - src->mcc, src->mnc); - dst->rNC_ID = src->rnc_id; - return 0; -} -#endif - -static int ranap_handle_co_initial_ue(void *ctx, RANAP_InitialUE_MessageIEs_t *ies) -{ - struct ue_conn_ctx *ue_conn = ctx; - struct gprs_ra_id ra_id; - struct iu_grnc_id grnc_id; - uint16_t sai; - struct msgb *msg = msgb_alloc(256, "RANAP->NAS"); - - if (ranap_parse_lai(&ra_id, &ies->lai) != 0) { - LOGP(DRANAP, LOGL_ERROR, "Failed to parse RANAP LAI IE\n"); - return -1; - } - - if (ies->presenceMask & INITIALUE_MESSAGEIES_RANAP_RAC_PRESENT) { - ra_id.rac = asn1str_to_u8(&ies->rac); - } - - if (iu_grnc_id_parse(&grnc_id, &ies->globalRNC_ID) != 0) { - LOGP(DRANAP, LOGL_ERROR, - "Failed to parse RANAP Global-RNC-ID IE\n"); - return -1; - } - - sai = asn1str_to_u16(&ies->sai.sAC); - msgb_gmmh(msg) = msgb_put(msg, ies->nas_pdu.size); - memcpy(msgb_gmmh(msg), ies->nas_pdu.buf, ies->nas_pdu.size); - - /* Make sure we know the RNC Id and LAC+RAC coming in on this connection. */ - iu_rnc_register(grnc_id.rnc_id, ra_id.lac, ra_id.rac, ue_conn->link); - ue_conn->ra_id = ra_id; - - /* Feed into the MM layer */ - msg->dst = ctx; - global_iu_recv_cb(msg, &ra_id, &sai); - - msgb_free(msg); - - return 0; -} - -static int ranap_handle_co_dt(void *ctx, RANAP_DirectTransferIEs_t *ies) -{ - struct gprs_ra_id _ra_id, *ra_id = NULL; - uint16_t _sai, *sai = NULL; - struct msgb *msg = msgb_alloc(256, "RANAP->NAS"); - - if (ies->presenceMask & DIRECTTRANSFERIES_RANAP_LAI_PRESENT) { - if (ranap_parse_lai(&_ra_id, &ies->lai) != 0) { - LOGP(DRANAP, LOGL_ERROR, "Failed to parse RANAP LAI IE\n"); - return -1; - } - ra_id = &_ra_id; - if (ies->presenceMask & DIRECTTRANSFERIES_RANAP_RAC_PRESENT) { - _ra_id.rac = asn1str_to_u8(&ies->rac); - } - if (ies->presenceMask & DIRECTTRANSFERIES_RANAP_SAI_PRESENT) { - _sai = asn1str_to_u16(&ies->sai.sAC); - sai = &_sai; - } - } - - msgb_gmmh(msg) = msgb_put(msg, ies->nas_pdu.size); - memcpy(msgb_gmmh(msg), ies->nas_pdu.buf, ies->nas_pdu.size); - - /* Feed into the MM/CC/SMS-CP layer */ - msg->dst = ctx; - global_iu_recv_cb(msg, ra_id, sai); - - msgb_free(msg); - - return 0; -} - -static int ranap_handle_co_err_ind(void *ctx, RANAP_ErrorIndicationIEs_t *ies) -{ - if (ies->presenceMask & ERRORINDICATIONIES_RANAP_CAUSE_PRESENT) - LOGP(DRANAP, LOGL_ERROR, "Rx Error Indication (%s)\n", - ranap_cause_str(&ies->cause)); - else - LOGP(DRANAP, LOGL_ERROR, "Rx Error Indication\n"); - - return 0; -} - -int iu_tx(struct msgb *msg_nas, uint8_t sapi) -{ - struct ue_conn_ctx *uectx = msg_nas->dst; - struct msgb *msg; - struct osmo_scu_prim *prim; - - LOGP(DRANAP, LOGL_INFO, "Transmitting L3 Message as RANAP DT (SUA link %p conn_id %u)\n", - uectx->link, uectx->conn_id); - - msg = ranap_new_msg_dt(sapi, msg_nas->data, msgb_length(msg_nas)); - msgb_free(msg_nas); - msg->l2h = msg->data; - prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim)); - prim->u.data.conn_id = uectx->conn_id; - osmo_prim_init(&prim->oph, SCCP_SAP_USER, - OSMO_SCU_PRIM_N_DATA, - PRIM_OP_REQUEST, msg); - osmo_sua_user_link_down(uectx->link, &prim->oph); - return 0; -} - -static int ranap_handle_co_iu_rel_req(struct ue_conn_ctx *ctx, RANAP_Iu_ReleaseRequestIEs_t *ies) -{ - struct msgb *msg; - struct osmo_scu_prim *prim; - - LOGP(DRANAP, LOGL_INFO, "Received Iu Release Request, Sending Release Command\n"); - msg = ranap_new_msg_iu_rel_cmd(&ies->cause); - msg->l2h = msg->data; - prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim)); - prim->u.data.conn_id = ctx->conn_id; - osmo_prim_init(&prim->oph, SCCP_SAP_USER, - OSMO_SCU_PRIM_N_DATA, - PRIM_OP_REQUEST, msg); - osmo_sua_user_link_down(ctx->link, &prim->oph); - return 0; -} - -static int ranap_handle_co_rab_ass_resp(struct ue_conn_ctx *ctx, 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); - 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]; - RANAP_RAB_SetupOrModifiedItemIEs_t setup_ies; - - rc = ranap_decode_rab_setupormodifieditemies_fromlist(&setup_ies, &ranap_ie->value); - if (rc) { - LOGP(DRANAP, LOGL_ERROR, "Error in ranap_decode_rab_setupormodifieditemies()\n"); - return rc; - } - - rc = global_iu_event_cb(ctx, IU_EVENT_RAB_ASSIGN, &setup_ies); - - ranap_free_rab_setupormodifieditemies(&setup_ies); - } - - return rc; -} - -/* Entry point for connection-oriented RANAP message */ -static void cn_ranap_handle_co(void *ctx, ranap_message *message) -{ - int rc; - - LOGP(DRANAP, LOGL_NOTICE, "handle_co(dir=%u, proc=%u)\n", message->direction, message->procedureCode); - - switch (message->direction) { - case RANAP_RANAP_PDU_PR_initiatingMessage: - switch (message->procedureCode) { - case RANAP_ProcedureCode_id_InitialUE_Message: - rc = ranap_handle_co_initial_ue(ctx, &message->msg.initialUE_MessageIEs); - break; - case RANAP_ProcedureCode_id_DirectTransfer: - rc = ranap_handle_co_dt(ctx, &message->msg.directTransferIEs); - break; - case RANAP_ProcedureCode_id_ErrorIndication: - rc = ranap_handle_co_err_ind(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); - break; - default: - LOGP(DRANAP, LOGL_ERROR, "Received Initiating Message: unknown Procedure Code %d\n", - message->procedureCode); - rc = -1; - break; - } - break; - case RANAP_RANAP_PDU_PR_successfulOutcome: - switch (message->procedureCode) { - case RANAP_ProcedureCode_id_SecurityModeControl: - /* Security Mode Complete */ - rc = global_iu_event_cb(ctx, IU_EVENT_SECURITY_MODE_COMPLETE, NULL); - break; - case RANAP_ProcedureCode_id_Iu_Release: - /* Iu Release Complete */ - rc = global_iu_event_cb(ctx, IU_EVENT_IU_RELEASE, NULL); - if (rc) { - LOGP(DRANAP, LOGL_ERROR, "Iu Release event: Iu Event callback returned %d\n", - rc); - } - break; - default: - LOGP(DRANAP, LOGL_ERROR, "Received Successful Outcome: unknown Procedure Code %d\n", - message->procedureCode); - rc = -1; - break; - } - break; - case RANAP_RANAP_PDU_PR_outcome: - switch (message->procedureCode) { - case RANAP_ProcedureCode_id_RAB_Assignment: - /* RAB Assignment Response */ - rc = ranap_handle_co_rab_ass_resp(ctx, &message->msg.raB_AssignmentResponseIEs); - break; - default: - LOGP(DRANAP, LOGL_ERROR, "Received Outcome: unknown Procedure Code %d\n", - message->procedureCode); - rc = -1; - break; - } - break; - case RANAP_RANAP_PDU_PR_unsuccessfulOutcome: - default: - LOGP(DRANAP, LOGL_ERROR, "Received Unsuccessful Outcome: Procedure Code %d\n", - message->procedureCode); - rc = -1; - break; - } - - if (rc) { - LOGP(DRANAP, LOGL_ERROR, "Error in cn_ranap_handle_co (%d)\n", - rc); - /* TODO handling of the error? */ - } -} - -static int ranap_handle_cl_reset_req(void *ctx, RANAP_ResetIEs_t *ies) -{ - /* FIXME: send reset response */ - return -1; -} - -static int ranap_handle_cl_err_ind(void *ctx, RANAP_ErrorIndicationIEs_t *ies) -{ - if (ies->presenceMask & ERRORINDICATIONIES_RANAP_CAUSE_PRESENT) - LOGP(DRANAP, LOGL_ERROR, "Rx Error Indication (%s)\n", - ranap_cause_str(&ies->cause)); - else - LOGP(DRANAP, LOGL_ERROR, "Rx Error Indication\n"); - - return 0; -} - -/* Entry point for connection-less RANAP message */ -static void cn_ranap_handle_cl(void *ctx, ranap_message *message) -{ - int rc; - - switch (message->direction) { - case RANAP_RANAP_PDU_PR_initiatingMessage: - switch (message->procedureCode) { - case RANAP_ProcedureCode_id_Reset: - /* received reset.req, send reset.resp */ - rc = ranap_handle_cl_reset_req(ctx, &message->msg.resetIEs); - break; - case RANAP_ProcedureCode_id_ErrorIndication: - rc = ranap_handle_cl_err_ind(ctx, &message->msg.errorIndicationIEs); - break; - default: - rc = -1; - break; - } - break; - case RANAP_RANAP_PDU_PR_successfulOutcome: - case RANAP_RANAP_PDU_PR_unsuccessfulOutcome: - case RANAP_RANAP_PDU_PR_outcome: - default: - rc = -1; - break; - } - - if (rc) { - LOGP(DRANAP, LOGL_ERROR, "Error in cn_ranap_handle_cl (%d)\n", - rc); - /* TODO handling of the error? */ - } -} - -/*********************************************************************** - * Paging - ***********************************************************************/ - -/* Send a paging command down a given SUA link. tmsi and paging_cause are - * optional and may be passed NULL and 0, respectively, to disable their use. - * See enum RANAP_PagingCause. - * - * If TMSI is given, the IMSI is not sent over the air interface. Nevertheless, - * the IMSI is still required for resolution in the HNB-GW and/or(?) RNC. */ -static int iu_tx_paging_cmd(struct osmo_sccp_link *link, - const char *imsi, const uint32_t *tmsi, - bool is_ps, uint32_t paging_cause) -{ - struct msgb *msg; - msg = ranap_new_msg_paging_cmd(imsi, tmsi, is_ps? 1 : 0, paging_cause); - msg->l2h = msg->data; - return osmo_sccp_tx_unitdata_ranap(link, 1, 2, msg->data, - msgb_length(msg)); -} - -static int iu_page(const char *imsi, const uint32_t *tmsi_or_ptimsi, - uint16_t lac, uint8_t rac, bool is_ps) -{ - struct iu_rnc *rnc; - int pagings_sent = 0; - - if (tmsi_or_ptimsi) { - LOGP(DRANAP, LOGL_DEBUG, "%s: Looking for RNCs to page for IMSI %s" - " (paging will use %s %x)\n", - is_ps? "IuPS" : "IuCS", - imsi, - is_ps? "PTMSI" : "TMSI", - *tmsi_or_ptimsi); - } else { - LOGP(DRANAP, LOGL_DEBUG, "%s: Looking for RNCs to page for IMSI %s" - " (paging will use IMSI)\n", - is_ps? "IuPS" : "IuCS", - imsi - ); - } - - llist_for_each_entry(rnc, &rnc_list, entry) { - if (!rnc->link) { - /* Not actually connected, don't count it. */ - continue; - } - if (rnc->lac != lac) - continue; - if (is_ps && rnc->rac != rac) - continue; - - /* Found a match! */ - if (iu_tx_paging_cmd(rnc->link, imsi, tmsi_or_ptimsi, is_ps, 0) - == 0) { - LOGP(DRANAP, LOGL_DEBUG, - "%s: Paged for IMSI %s on RNC %d, on SUA link %p\n", - is_ps? "IuPS" : "IuCS", - imsi, rnc->rnc_id, rnc->link); - pagings_sent ++; - } - } - - /* Some logging... */ - if (pagings_sent > 0) { - LOGP(DRANAP, LOGL_DEBUG, - "%s: %d RNCs were paged for IMSI %s.\n", - is_ps? "IuPS" : "IuCS", - pagings_sent, imsi); - } - else { - if (is_ps) { - LOGP(DRANAP, LOGL_ERROR, "IuPS: Found no RNC to page for" - " LAC %d RAC %d (would have paged IMSI %s)\n", - lac, rac, imsi); - } - else { - LOGP(DRANAP, LOGL_ERROR, "IuCS: Found no RNC to page for" - " LAC %d (would have paged IMSI %s)\n", - lac, imsi); - } - } - - return pagings_sent; -} - -int iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac) -{ - return iu_page(imsi, tmsi, lac, 0, false); -} - -int iu_page_ps(const char *imsi, const uint32_t *ptmsi, uint16_t lac, uint8_t rac) -{ - return iu_page(imsi, ptmsi, lac, rac, true); -} - - -/*********************************************************************** - * - ***********************************************************************/ - -int tx_unitdata(struct osmo_sccp_link *link); -int tx_conn_req(struct osmo_sccp_link *link, uint32_t conn_id); - -struct osmo_prim_hdr *make_conn_req(uint32_t conn_id); -struct osmo_prim_hdr *make_dt1_req(uint32_t conn_id, const uint8_t *data, unsigned int len); - -struct osmo_prim_hdr *make_conn_resp(struct osmo_scu_connect_param *param) -{ - struct msgb *msg = msgb_alloc(1024, "conn_resp"); - struct osmo_scu_prim *prim; - - prim = (struct osmo_scu_prim *) msgb_put(msg, sizeof(*prim)); - osmo_prim_init(&prim->oph, SCCP_SAP_USER, - OSMO_SCU_PRIM_N_CONNECT, - PRIM_OP_RESPONSE, msg); - memcpy(&prim->u.connect, param, sizeof(prim->u.connect)); - return &prim->oph; -} - -static int sccp_sap_up(struct osmo_prim_hdr *oph, void *link) -{ - struct osmo_scu_prim *prim = (struct osmo_scu_prim *) oph; - struct osmo_prim_hdr *resp = NULL; - int rc; - struct ue_conn_ctx *ue; - - DEBUGP(DRANAP, "sccp_sap_up(%s)\n", osmo_scu_prim_name(oph)); - - switch (OSMO_PRIM_HDR(oph)) { - case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_CONFIRM): - /* confirmation of outbound connection */ - rc = -1; - break; - case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_INDICATION): - /* indication of new inbound connection request*/ - DEBUGP(DRANAP, "N-CONNECT.ind(X->%u)\n", prim->u.connect.conn_id); - if (/* prim->u.connect.called_addr.ssn != OSMO_SCCP_SSN_RANAP || */ - !msgb_l2(oph->msg) || msgb_l2len(oph->msg) == 0) { - LOGP(DRANAP, LOGL_NOTICE, - "Received invalid N-CONNECT.ind\n"); - return 0; - } - ue = ue_conn_ctx_alloc(link, prim->u.connect.conn_id); - /* first ensure the local SUA/SCCP socket is ACTIVE */ - resp = make_conn_resp(&prim->u.connect); - osmo_sua_user_link_down(link, resp); - /* then handle the RANAP payload */ - rc = ranap_cn_rx_co(cn_ranap_handle_co, ue, msgb_l2(oph->msg), msgb_l2len(oph->msg)); - break; - case OSMO_PRIM(OSMO_SCU_PRIM_N_DISCONNECT, PRIM_OP_INDICATION): - /* indication of disconnect */ - DEBUGP(DRANAP, "N-DISCONNECT.ind(%u)\n", - prim->u.disconnect.conn_id); - ue = ue_conn_ctx_find(link, prim->u.disconnect.conn_id); - rc = ranap_cn_rx_co(cn_ranap_handle_co, ue, msgb_l2(oph->msg), msgb_l2len(oph->msg)); - break; - case OSMO_PRIM(OSMO_SCU_PRIM_N_DATA, PRIM_OP_INDICATION): - /* connection-oriented data received */ - DEBUGP(DRANAP, "N-DATA.ind(%u, %s)\n", prim->u.data.conn_id, - osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg))); - /* resolve UE context */ - ue = ue_conn_ctx_find(link, prim->u.data.conn_id); - rc = ranap_cn_rx_co(cn_ranap_handle_co, ue, msgb_l2(oph->msg), msgb_l2len(oph->msg)); - break; - case OSMO_PRIM(OSMO_SCU_PRIM_N_UNITDATA, PRIM_OP_INDICATION): - /* connection-less data received */ - DEBUGP(DRANAP, "N-UNITDATA.ind(%s)\n", - osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg))); - rc = ranap_cn_rx_cl(cn_ranap_handle_cl, link, msgb_l2(oph->msg), msgb_l2len(oph->msg)); - break; - default: - rc = -1; - break; - } - - msgb_free(oph->msg); - return rc; -} - -int iu_init(void *ctx, const char *listen_addr, uint16_t listen_port, - iu_recv_cb_t iu_recv_cb, iu_event_cb_t iu_event_cb) -{ - struct osmo_sccp_user *user; - talloc_iu_ctx = talloc_named_const(ctx, 1, "iu"); - talloc_asn1_ctx = talloc_named_const(talloc_iu_ctx, 1, "asn1"); - - global_iu_recv_cb = iu_recv_cb; - global_iu_event_cb = iu_event_cb; - osmo_sua_set_log_area(DSUA); - user = osmo_sua_user_create(talloc_iu_ctx, sccp_sap_up, talloc_iu_ctx); - return osmo_sua_server_listen(user, listen_addr, listen_port); -} - diff --git a/openbsc/src/libiu/iu_vty.c b/openbsc/src/libiu/iu_vty.c deleted file mode 100644 index 91eed96be..000000000 --- a/openbsc/src/libiu/iu_vty.c +++ /dev/null @@ -1,50 +0,0 @@ -/* OpenBSC Iu related interface to quagga VTY */ -/* (C) 2016 by sysmocom s.m.f.c. GmbH - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . - * - */ - -#include - -#include -#include - -/* Pointer to the actual asn_debug value as passed from main scopes. */ -static int *g_asn_debug_p = NULL; - -DEFUN(logging_asn_debug, - logging_asn_debug_cmd, - "logging asn1-debug (1|0)", - LOGGING_STR - "Log human readable representations of all ASN.1 messages to stderr\n" - "Log decoded ASN.1 messages to stderr\n" - "Do not log decoded ASN.1 messages to stderr\n") -{ - if (!g_asn_debug_p) { - vty_out(vty, "%%ASN.1 debugging not available%s", VTY_NEWLINE); - return CMD_WARNING; - } - - *g_asn_debug_p = atoi(argv[0]); - return CMD_SUCCESS; -} - -void iu_vty_init(int *asn_debug_p) -{ - g_asn_debug_p = asn_debug_p; - - install_element(CFG_LOG_NODE, &logging_asn_debug_cmd); -} -- cgit v1.2.3