diff options
author | Harald Welte <laforge@gnumonks.org> | 2015-12-26 08:43:04 +0100 |
---|---|---|
committer | Harald Welte <laforge@gnumonks.org> | 2015-12-26 08:43:04 +0100 |
commit | 3aad6af6a415dff3797b20a3587be15e5e724aee (patch) | |
tree | 249681e85eba4f2e6c801fbd569ecc6fd639674c /src | |
parent | 37704d907db906dec6f64adb138489aa896bd3f7 (diff) |
add 'dummy cn' as a stub core netwrok element to which hnbgw connects
Diffstat (limited to 'src')
-rw-r--r-- | src/tests/Makefile.am | 9 | ||||
-rw-r--r-- | src/tests/dummy_cn_sua.c | 264 |
2 files changed, 270 insertions, 3 deletions
diff --git a/src/tests/Makefile.am b/src/tests/Makefile.am index 3970f60..18490be 100644 --- a/src/tests/Makefile.am +++ b/src/tests/Makefile.am @@ -1,8 +1,8 @@ -AM_CFLAGS = $(OSMOVTY_CFLAGS) $(OSMOCORE_CFLAGS) $(OSMOGSM_CFLAGS) $(OSMONETIF_CFLAGS) $(ASN1C_CFLAGS) -g -I$(top_builddir)/src -I$(top_builddir)/src/hnbap/ +AM_CFLAGS = $(OSMOVTY_CFLAGS) $(OSMOCORE_CFLAGS) $(OSMOGSM_CFLAGS) $(OSMONETIF_CFLAGS) $(ASN1C_CFLAGS) $(OSMOSIGTRAN_CFLAGS) -g -I$(top_builddir)/src -I$(top_builddir)/src/hnbap/ -COMMON_LIBS = $(OSMOVTY_LIBS) $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(ASN1C_LIBS) -lsctp +COMMON_LIBS = $(OSMOVTY_LIBS) $(OSMOCORE_LIBS) $(OSMOGSM_LIBS) $(ASN1C_LIBS) $(OSMOSIGTRAN_LIBS) -lsctp -check_PROGRAMS = test-ranap test-helpers test-hnbap hnb-test +check_PROGRAMS = test-ranap test-helpers test-hnbap hnb-test dummy-cn HNBAP_FILES = $(top_builddir)/src/hnbap_common.c $(top_builddir)/src/hnbap_decoder.c $(top_builddir)/src/hnbap_encoder.c RUA_FILES = $(top_builddir)/src/rua_common.c $(top_builddir)/src/rua_decoder.c $(top_builddir)/src/rua_encoder.c @@ -24,6 +24,9 @@ hnb_test_LDADD = $(COMMON_LIBS) $(top_builddir)/src/hnbap/libosmo-asn1-hnbap.a $ test_ranap_SOURCES = $(HELPER_FILES) $(RANAP_FILES) test-ranap.c test_common.c test_ranap_LDADD = $(COMMON_LIBS) $(top_builddir)/src/ranap/libosmo-asn1-ranap.a +dummy_cn_SOURCES = $(HELPER_FILES) $(RANAP_FILES) test_common.c dummy_cn_sua.c ranap_common_cn.c +dummy_cn_LDADD = $(COMMON_LIBS) $(top_builddir)/src/ranap/libosmo-asn1-ranap.a + # The `:;' works around a Bash 3.2 bug when the output is not writeable. $(srcdir)/package.m4: $(top_srcdir)/configure.ac :;{ \ diff --git a/src/tests/dummy_cn_sua.c b/src/tests/dummy_cn_sua.c new file mode 100644 index 0000000..6d8098a --- /dev/null +++ b/src/tests/dummy_cn_sua.c @@ -0,0 +1,264 @@ +#include <stdint.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include <osmocom/core/select.h> +#include <osmocom/core/prim.h> +#include <osmocom/core/talloc.h> +#include <osmocom/core/logging.h> +#include <osmocom/core/application.h> +#include <osmocom/vty/logging.h> + +#include <osmocom/sigtran/sua.h> +#include <osmocom/sigtran/sccp_sap.h> + +#include "test_common.h" +#include "ranap_common_cn.h" +#include "hnbgw.h" + +int asn1_xer_print = 1; + +/*********************************************************************** + * RANAP handling + ***********************************************************************/ + +static int ranap_handle_co_initial_ue(void *ctx, RANAP_InitialUE_MEssageIEs_t *ies) +{ + struct gprs_ra_id ra_id; + uint16_t sai; + struct msgb *msg = msgb_alloc(256, "RANAP->NAS"); + uint8_t *cur; + + ranap_parse_lai(&ra_id, &ies.lai); + sai = asn1str_to_u16(&ies.sai.sAC); + cur = msgb_put(msg, ies.nas_pdu.size); + memcpy(msg, ies.nas_pdu.buf, ies.nas_pdu.size); + /* FIXME: set msgb_gmmh() */ + + /* FIXME: Feed into the MM layer */ + rc = gsm0408_gprs_rcvmsg_iu(msg, ra_id, sai, conn_id); + + 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"); + uint8_t *cur; + + if (ies.presenceMask & DIRECTTRANSFERIES_RANAP_LAI_PRESENT) { + ranap_parse_lai(&_ra_id, &ies.lai); + ra_id = &_ra_id; + if (ies.presenceMask & DIRECTTRANSFERIES_RANAP_RAC_PRESENT) { + _ra_id.rac = asn1str_to_u16(&ies.rac); + } + if (ies.presenceMask & DIRECTTRANSFERIES_RANAP_SAI_PRESENT) { + _sai = asn1str_to_u16(&ies.sai.sAC); + sai = &_sai; + } + } + + cur = msgb_put(msg, ies.nas_pdu.size); + memcpy(msg, ies.nas_pdu.buf, ies.nas_pdu.size); + /* FIXME: set msgb_gmmh() */ + + /* FIXME: Feed into the MM/CC/SMS-CP layer */ + rc = gsm0408_gprs_rcvmsg_iu(msg, ra_id, sai, conn_id); + + 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; +} + +/* Entry point for connection-oriented ANAP message */ +int cn_ranap_handle_co(void *ctx, ranap_message *message) +{ + int rc = 0; + + 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; + } + break; + case RANAP_RANAP_PDU_PR_successfulOutcome: + switch (message->procedureCode) { + case RANAP_ProcedureCode_id_RAB_Assignment: + /* RAB Assignment Response */ + break; + case RANAP_ProcedureCode_id_SecurityModeControl: + /* Security Mode Complete */ + break; + case RANAP_ProcedureCode_id_Iu_Release: + /* Iu Release Complete */ + break; + } + case RANAP_RANAP_PDU_PR_unsuccessfulOutcome: + case RANAP_RANAP_PDU_PR_outcome: + default: + rc = -1; + break; + } + + return rc; +} + +static int ranap_handle_cl_reset_req(void *ctx, RANAP_ResetIEs_t *ies) +{ + /* FIXME: send reset response */ +} + +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 */ +int cn_ranap_handle_cl(void *ctx, ranap_message *message) +{ + int rc = 0; + + 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; + } + break; + case RANAP_RANAP_PDU_PR_successfulOutcome: + case RANAP_RANAP_PDU_PR_unsuccessfulOutcome: + case RANAP_RANAP_PDU_PR_outcome: + default: + rc = -1; + break; + } +} + +/*********************************************************************** + * + ***********************************************************************/ + +int tx_unitdata(struct osmo_sua_link *link); +int tx_conn_req(struct osmo_sua_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; + const uint8_t payload[] = { 0xb1, 0xb2, 0xb3 }; + int rc; + void *ue; + + printf("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 */ + break; + case OSMO_PRIM(OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_INDICATION): + /* indication of new inbound connection request*/ + printf("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(DMAIN, LOGL_NOTICE, "Received invalid N-CONNECT.ind\n"); + return 0; + } + /* FIXME: allocate UE context */ + /* 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 = cn_ranap_rx_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 */ + printf("N-DISCONNECT.ind(%u)\n", prim->u.disconnect.conn_id); + break; + case OSMO_PRIM(OSMO_SCU_PRIM_N_DATA, PRIM_OP_INDICATION): + /* connection-oriented data received */ + printf("N-DATA.ind(%u, %s)\n", prim->u.data.conn_id, + osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg))); + /* FIXME: resolve UE context */ + rc = cn_ranap_rx_co(ue, msgb_l2(oph->msg), msgb_l2len(oph->msg)); + break; + case OSMO_PRIM(OSMO_SCU_PRIM_N_UNITDATA, PRIM_OP_INDICATION): + /* connection-oriented data received */ + printf("N-UNITDATA.ind(%s)\n", + osmo_hexdump(msgb_l2(oph->msg), msgb_l2len(oph->msg))); + rc = cn_ranap_rx_cl(link, msgb_l2(oph->msg), msgb_l2len(oph->msg)); + break; + } + + msgb_free(oph->msg); + return 0; +} + +int main(int argc, char **argv) +{ + struct osmo_sua_user *user; + void *ctx = talloc_named_const(NULL, 1, "root"); + int rc; + + osmo_sua_set_log_area(DSUA); + + test_common_init(); + + user = osmo_sua_user_create(ctx, sccp_sap_up); + + rc = osmo_sua_server_listen(user, "127.0.0.1", 14001); + if (rc < 0) { + exit(1); + } + + while (1) { + osmo_select_main(0); + } +} |