diff --git a/openbsc/include/openbsc/Makefile.am b/openbsc/include/openbsc/Makefile.am index 70365f2b3..92978e7ce 100644 --- a/openbsc/include/openbsc/Makefile.am +++ b/openbsc/include/openbsc/Makefile.am @@ -15,7 +15,7 @@ noinst_HEADERS = abis_nm.h abis_rsl.h db.h gsm_04_08.h gsm_data.h \ bss.h gsm_data_shared.h ipaccess.h mncc_int.h \ arfcn_range_encode.h nat_rewrite_trie.h bsc_nat_callstats.h \ osmux.h mgcp_transcode.h rtp.h gprs_utils.h \ - gprs_gb_parse.h smpp.h meas_feed.h + gprs_gb_parse.h smpp.h meas_feed.h gprs_gsup_messages.h openbsc_HEADERS = gsm_04_08.h meas_rep.h bsc_api.h openbscdir = $(includedir)/openbsc diff --git a/openbsc/include/openbsc/gprs_gsup_messages.h b/openbsc/include/openbsc/gprs_gsup_messages.h new file mode 100644 index 000000000..f1a9978a3 --- /dev/null +++ b/openbsc/include/openbsc/gprs_gsup_messages.h @@ -0,0 +1,103 @@ +/* GPRS Subscriber Update Protocol message encoder/decoder */ + +/* (C) 2014 by Sysmocom s.f.m.c. GmbH + * All Rights Reserved + * + * Author: Jacob Erlbeck + * + * 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 . + * + */ +#pragma once + +#include +#include +#include +/* Needed for GSM_IMSI_LENGTH: */ +#include + +#define GPRS_GSUP_MAX_NUM_PDP_INFO 10 /* GSM 09.02 limits this to 50 */ +#define GPRS_GSUP_MAX_NUM_AUTH_INFO 5 + +#define GPRS_GSUP_PDP_TYPE_SIZE 2 + +enum gprs_gsup_iei { + GPRS_GSUP_IMSI_IE = 0x01, + GPRS_GSUP_CAUSE_IE = 0x02, + GPRS_GSUP_AUTH_TUPLE_IE = 0x03, + GPRS_GSUP_PDP_INFO_COMPL_IE = 0x04, + GPRS_GSUP_PDP_INFO_IE = 0x05, + GPRS_GSUP_CANCEL_TYPE_IE = 0x06, + GPRS_GSUP_PDP_CONTEXT_ID_IE = 0x10, + GPRS_GSUP_PDP_TYPE_IE = 0x11, + GPRS_GSUP_ACCESS_POINT_NAME_IE = 0x12, + GPRS_GSUP_RAND_IE = 0x20, + GPRS_GSUP_SRES_IE = 0x21, + GPRS_GSUP_KC_IE = 0x22 +}; + +enum gprs_gsup_message_type { + GPRS_GSUP_MSGT_UPDATE_LOCATION_REQUEST = 0b00000100, + GPRS_GSUP_MSGT_UPDATE_LOCATION_ERROR = 0b00000101, + GPRS_GSUP_MSGT_UPDATE_LOCATION_RESULT = 0b00000110, + + GPRS_GSUP_MSGT_SEND_AUTH_INFO_REQUEST = 0b00001000, + GPRS_GSUP_MSGT_SEND_AUTH_INFO_ERROR = 0b00001001, + GPRS_GSUP_MSGT_SEND_AUTH_INFO_RESULT = 0b00001010, + + GPRS_GSUP_MSGT_PURGE_MS_REQUEST = 0b00001100, + GPRS_GSUP_MSGT_PURGE_MS_ERROR = 0b00001101, + GPRS_GSUP_MSGT_PURGE_MS_RESULT = 0b00001110, + + GPRS_GSUP_MSGT_INSERT_DATA_REQUEST = 0b00010000, + GPRS_GSUP_MSGT_INSERT_DATA_ERROR = 0b00010001, + GPRS_GSUP_MSGT_INSERT_DATA_RESULT = 0b00010010, + + GPRS_GSUP_MSGT_DELETE_DATA_REQUEST = 0b00010100, + GPRS_GSUP_MSGT_DELETE_DATA_ERROR = 0b00010101, + GPRS_GSUP_MSGT_DELETE_DATA_RESULT = 0b00010110, + + GPRS_GSUP_MSGT_LOCATION_CANCEL_REQUEST = 0b00011100, + GPRS_GSUP_MSGT_LOCATION_CANCEL_ERROR = 0b00011101, + GPRS_GSUP_MSGT_LOCATION_CANCEL_RESULT = 0b00011110, +}; + +enum gprs_gsup_cancel_type { + GPRS_GSUP_CANCEL_TYPE_UPDATE = 1, /* on wire: 0 */ + GPRS_GSUP_CANCEL_TYPE_WITHDRAW = 2, /* on wire: 1 */ +}; + +struct gprs_gsup_pdp_info { + unsigned int context_id; + int have_info; + uint16_t pdp_type; + const uint8_t *apn_enc; + size_t apn_enc_len; +}; + +struct gprs_gsup_message { + enum gprs_gsup_message_type message_type; + char imsi[GSM_IMSI_LENGTH]; + enum gsm48_gmm_cause cause; + enum gprs_gsup_cancel_type cancel_type; + int pdp_info_compl; + struct gsm_auth_tuple auth_tuples[GPRS_GSUP_MAX_NUM_AUTH_INFO]; + size_t num_auth_tuples; + struct gprs_gsup_pdp_info pdp_infos[GPRS_GSUP_MAX_NUM_PDP_INFO]; + size_t num_pdp_infos; +}; + +int gprs_gsup_decode(const uint8_t *data, size_t data_len, + struct gprs_gsup_message *gsup_msg); +void gprs_gsup_encode(struct msgb *msg, const struct gprs_gsup_message *gsup_msg); diff --git a/openbsc/src/gprs/Makefile.am b/openbsc/src/gprs/Makefile.am index f937362a4..d45aaee4a 100644 --- a/openbsc/src/gprs/Makefile.am +++ b/openbsc/src/gprs/Makefile.am @@ -22,7 +22,8 @@ osmo_gbproxy_LDADD = $(top_builddir)/src/libcommon/libcommon.a \ osmo_sgsn_SOURCES = gprs_gmm.c gprs_sgsn.c gprs_sndcp.c gprs_sndcp_vty.c \ sgsn_main.c sgsn_vty.c sgsn_libgtp.c \ gprs_llc.c gprs_llc_parse.c gprs_llc_vty.c crc24.c \ - sgsn_ctrl.c sgsn_auth.c gprs_subscriber.c + sgsn_ctrl.c sgsn_auth.c gprs_subscriber.c \ + gprs_gsup_messages.c gprs_utils.c osmo_sgsn_LDADD = \ $(top_builddir)/src/libcommon/libcommon.a \ -lgtp $(OSMO_LIBS) $(LIBOSMOABIS_LIBS) diff --git a/openbsc/src/gprs/gprs_gsup_messages.c b/openbsc/src/gprs/gprs_gsup_messages.c new file mode 100644 index 000000000..c3d187db6 --- /dev/null +++ b/openbsc/src/gprs/gprs_gsup_messages.c @@ -0,0 +1,405 @@ +/* GPRS Subscriber Update Protocol message encoder/decoder */ + +/* + * (C) 2014 by Sysmocom s.f.m.c. GmbH + * All Rights Reserved + * + * Author: Jacob Erlbeck + * + * 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 + + +static uint64_t decode_big_endian(const uint8_t *data, size_t data_len) +{ + uint64_t value = 0; + + while (data_len > 0) { + value = (value << 8) + *data; + data += 1; + data_len -= 1; + } + + return value; +} + +static uint8_t *encode_big_endian(uint64_t value, size_t data_len) +{ + static uint8_t buf[sizeof(uint64_t)]; + int idx; + + OSMO_ASSERT(data_len <= ARRAY_SIZE(buf)); + + for (idx = data_len - 1; idx >= 0; idx--) { + buf[idx] = (uint8_t)value; + value = value >> 8; + } + + return buf; +} + +static int decode_pdp_info(uint8_t *data, size_t data_len, + struct gprs_gsup_pdp_info *pdp_info) +{ + int rc; + uint8_t tag; + uint8_t *value; + size_t value_len; + + /* specific parts */ + while (data_len > 0) { + enum gprs_gsup_iei iei; + + rc = gprs_shift_tlv(&data, &data_len, &tag, &value, &value_len); + if (rc < 0) + return rc; + + iei = tag; + + switch (iei) { + case GPRS_GSUP_PDP_CONTEXT_ID_IE: + pdp_info->context_id = decode_big_endian(value, value_len); + break; + + case GPRS_GSUP_PDP_TYPE_IE: + pdp_info->pdp_type = + decode_big_endian(value, value_len) & 0x0fff; + break; + + case GPRS_GSUP_ACCESS_POINT_NAME_IE: + pdp_info->apn_enc = value; + pdp_info->apn_enc_len = value_len; + break; + + default: + LOGP(DGPRS, LOGL_ERROR, + "GSUP IE type %d not expected in PDP info\n", iei); + continue; + } + } + + return 0; +} + +static int decode_auth_info(uint8_t *data, size_t data_len, + struct gsm_auth_tuple *auth_tuple) +{ + int rc; + uint8_t tag; + uint8_t *value; + size_t value_len; + enum gprs_gsup_iei iei; + + /* specific parts */ + while (data_len > 0) { + rc = gprs_shift_tlv(&data, &data_len, &tag, &value, &value_len); + if (rc < 0) + return rc; + + iei = tag; + + switch (iei) { + case GPRS_GSUP_RAND_IE: + if (value_len != sizeof(auth_tuple->rand)) + goto parse_error; + + memcpy(auth_tuple->rand, value, value_len); + break; + + case GPRS_GSUP_SRES_IE: + if (value_len != sizeof(auth_tuple->sres)) + goto parse_error; + + memcpy(auth_tuple->sres, value, value_len); + break; + + case GPRS_GSUP_KC_IE: + if (value_len != sizeof(auth_tuple->kc)) + goto parse_error; + + memcpy(auth_tuple->kc, value, value_len); + break; + + default: + LOGP(DGPRS, LOGL_ERROR, + "GSUP IE type %d not expected in PDP info\n", iei); + continue; + } + } + + return 0; + +parse_error: + LOGP(DGPRS, LOGL_ERROR, + "GSUP IE type %d, length %d invalid in PDP info\n", iei, value_len); + + return -1; +} + +int gprs_gsup_decode(const uint8_t *const_data, size_t data_len, + struct gprs_gsup_message *gsup_msg) +{ + int rc; + uint8_t tag; + /* the shift/match functions expect non-const pointers, but we'll + * either copy the data or cast pointers back to const before returning + * them + */ + uint8_t *data = (uint8_t *)const_data; + uint8_t *value; + size_t value_len; + static const struct gprs_gsup_pdp_info empty_pdp_info = {0}; + static const struct gsm_auth_tuple empty_auth_info = {0}; + + /* generic part */ + gprs_shift_v_fixed(&data, &data_len, 1, &value); + gsup_msg->message_type = decode_big_endian(value, 1); + + rc = gprs_match_tlv(&data, &data_len, GPRS_GSUP_IMSI_IE, + &value, &value_len); + + if (rc <= 0) + return -GMM_CAUSE_INV_MAND_INFO; + + if (value_len * 2 + 1 > sizeof(gsup_msg->imsi)) + return -GMM_CAUSE_INV_MAND_INFO; + + /* Note that gsm48_decode_bcd_number expects the number of encoded IMSI + * octets in the first octet. By coincidence (the TLV encoding) the byte + * before the value part already contains this length so we can use it + * here. + */ + OSMO_ASSERT(value[-1] == value_len); + gsm48_decode_bcd_number(gsup_msg->imsi, sizeof(gsup_msg->imsi), + value - 1, 0); + + /* specific parts */ + while (data_len > 0) { + enum gprs_gsup_iei iei; + struct gprs_gsup_pdp_info pdp_info; + struct gsm_auth_tuple auth_info; + + rc = gprs_shift_tlv(&data, &data_len, &tag, &value, &value_len); + if (rc < 0) + return -GMM_CAUSE_PROTO_ERR_UNSPEC; + + iei = tag; + + switch (iei) { + case GPRS_GSUP_IMSI_IE: + case GPRS_GSUP_PDP_TYPE_IE: + case GPRS_GSUP_ACCESS_POINT_NAME_IE: + case GPRS_GSUP_RAND_IE: + case GPRS_GSUP_SRES_IE: + case GPRS_GSUP_KC_IE: + LOGP(DGPRS, LOGL_NOTICE, + "GSUP IE type %d not expected (ignored)\n", iei); + continue; + + case GPRS_GSUP_CAUSE_IE: + gsup_msg->cause = decode_big_endian(value, value_len); + break; + + case GPRS_GSUP_CANCEL_TYPE_IE: + gsup_msg->cancel_type = + decode_big_endian(value, value_len) + 1; + break; + + case GPRS_GSUP_PDP_INFO_COMPL_IE: + gsup_msg->pdp_info_compl = 1; + break; + + case GPRS_GSUP_PDP_CONTEXT_ID_IE: + /* When these IE appear in the top-level part of the + * message, they are used by Delete Subscr Info to delete + * single entries. We don't have an extra list for + * these but use the PDP info list instead */ + + /* fall through */ + + case GPRS_GSUP_PDP_INFO_IE: + if (gsup_msg->num_pdp_infos >= GPRS_GSUP_MAX_NUM_PDP_INFO) { + LOGP(DGPRS, LOGL_ERROR, + "GSUP IE type %d (PDP_INFO) max exceeded\n", + iei); + return -GMM_CAUSE_COND_IE_ERR; + } + + memcpy(&pdp_info, &empty_pdp_info, sizeof(pdp_info)); + + if (iei == GPRS_GSUP_PDP_INFO_IE) { + rc = decode_pdp_info(value, value_len, &pdp_info); + if (rc < 0) + return rc; + pdp_info.have_info = 1; + } else { + pdp_info.context_id = + decode_big_endian(value, value_len); + } + + gsup_msg->pdp_infos[gsup_msg->num_pdp_infos++] = + pdp_info; + break; + + case GPRS_GSUP_AUTH_TUPLE_IE: + if (gsup_msg->num_auth_tuples >= GPRS_GSUP_MAX_NUM_AUTH_INFO) { + LOGP(DGPRS, LOGL_ERROR, + "GSUP IE type %d (AUTH_INFO) max exceeded\n", + iei); + return -GMM_CAUSE_INV_MAND_INFO; + } + + memcpy(&auth_info, &empty_auth_info, sizeof(auth_info)); + auth_info.key_seq = gsup_msg->num_auth_tuples; + + rc = decode_auth_info(value, value_len, &auth_info); + if (rc < 0) + return rc; + + gsup_msg->auth_tuples[gsup_msg->num_auth_tuples++] = + auth_info; + break; + default: + LOGP(DGPRS, LOGL_NOTICE, + "GSUP IE type %d unknown\n", iei); + continue; + } + } + + return 0; +} + +static void encode_pdp_info(struct msgb *msg, enum gprs_gsup_iei iei, + const struct gprs_gsup_pdp_info *pdp_info) +{ + uint8_t *len_field; + size_t old_len; + uint8_t u8; + + len_field = msgb_tlv_put(msg, iei, 0, NULL) - 1; + old_len = msgb_length(msg); + + u8 = pdp_info->context_id; + msgb_tlv_put(msg, GPRS_GSUP_PDP_CONTEXT_ID_IE, sizeof(u8), &u8); + + if (pdp_info->pdp_type) { + msgb_tlv_put(msg, GPRS_GSUP_PDP_TYPE_IE, + GPRS_GSUP_PDP_TYPE_SIZE, + encode_big_endian(pdp_info->pdp_type | 0xf000, + GPRS_GSUP_PDP_TYPE_SIZE)); + } + + if (pdp_info->apn_enc) { + msgb_tlv_put(msg, GPRS_GSUP_ACCESS_POINT_NAME_IE, + pdp_info->apn_enc_len, pdp_info->apn_enc); + } + + /* Update length field */ + *len_field = msgb_length(msg) - old_len; +} + +static void encode_auth_info(struct msgb *msg, enum gprs_gsup_iei iei, + const struct gsm_auth_tuple *auth_tuple) +{ + uint8_t *len_field; + size_t old_len; + + len_field = msgb_tlv_put(msg, iei, 0, NULL) - 1; + old_len = msgb_length(msg); + + msgb_tlv_put(msg, GPRS_GSUP_RAND_IE, + sizeof(auth_tuple->rand), auth_tuple->rand); + + msgb_tlv_put(msg, GPRS_GSUP_SRES_IE, + sizeof(auth_tuple->sres), auth_tuple->sres); + + msgb_tlv_put(msg, GPRS_GSUP_KC_IE, + sizeof(auth_tuple->kc), auth_tuple->kc); + + /* Update length field */ + *len_field = msgb_length(msg) - old_len; +} + +void gprs_gsup_encode(struct msgb *msg, const struct gprs_gsup_message *gsup_msg) +{ + uint8_t u8; + int idx; + uint8_t bcd_buf[GSM48_MI_SIZE] = {0}; + size_t bcd_len; + + /* generic part */ + OSMO_ASSERT(gsup_msg->message_type); + msgb_v_put(msg, gsup_msg->message_type); + + bcd_len = gsm48_encode_bcd_number(bcd_buf, sizeof(bcd_buf), 0, + gsup_msg->imsi); + + OSMO_ASSERT(bcd_len > 1); + + /* Note that gsm48_encode_bcd_number puts the length into the first + * octet. Since msgb_tlv_put will add this length byte, we'll have to + * skip it */ + msgb_tlv_put(msg, GPRS_GSUP_IMSI_IE, bcd_len - 1, &bcd_buf[1]); + + /* specific parts */ + if ((u8 = gsup_msg->cause)) + msgb_tlv_put(msg, GPRS_GSUP_CAUSE_IE, sizeof(u8), &u8); + + if ((u8 = gsup_msg->cancel_type)) { + u8 -= 1; + msgb_tlv_put(msg, GPRS_GSUP_CANCEL_TYPE_IE, sizeof(u8), &u8); + } + + if (gsup_msg->pdp_info_compl) + msgb_tlv_put(msg, GPRS_GSUP_PDP_INFO_COMPL_IE, 0, &u8); + + for (idx = 0; idx < gsup_msg->num_pdp_infos; idx++) { + const struct gprs_gsup_pdp_info *pdp_info; + + pdp_info = &gsup_msg->pdp_infos[idx]; + + if (pdp_info->context_id == 0) + continue; + + if (pdp_info->have_info) { + encode_pdp_info(msg, GPRS_GSUP_PDP_INFO_IE, pdp_info); + } else { + u8 = pdp_info->context_id; + msgb_tlv_put(msg, GPRS_GSUP_PDP_CONTEXT_ID_IE, + sizeof(u8), &u8); + } + } + + for (idx = 0; idx < gsup_msg->num_auth_tuples; idx++) { + const struct gsm_auth_tuple *auth_info; + + auth_info = &gsup_msg->auth_tuples[idx]; + + if (auth_info->key_seq == GSM_KEY_SEQ_INVAL) + continue; + + encode_auth_info(msg, GPRS_GSUP_AUTH_TUPLE_IE, auth_info); + } +} diff --git a/openbsc/tests/gprs/Makefile.am b/openbsc/tests/gprs/Makefile.am index 193655fa4..616042b8a 100644 --- a/openbsc/tests/gprs/Makefile.am +++ b/openbsc/tests/gprs/Makefile.am @@ -5,5 +5,7 @@ EXTRA_DIST = gprs_test.ok noinst_PROGRAMS = gprs_test -gprs_test_SOURCES = gprs_test.c $(top_srcdir)/src/gprs/gprs_utils.c -gprs_test_LDADD = $(LIBOSMOCORE_LIBS) +gprs_test_SOURCES = gprs_test.c $(top_srcdir)/src/gprs/gprs_utils.c \ + $(top_srcdir)/src/gprs/gprs_gsup_messages.c + +gprs_test_LDADD = $(LIBOSMOCORE_LIBS) $(LIBOSMOGSM_LIBS) diff --git a/openbsc/tests/gprs/gprs_test.c b/openbsc/tests/gprs/gprs_test.c index 1b20db147..bf7697db8 100644 --- a/openbsc/tests/gprs/gprs_test.c +++ b/openbsc/tests/gprs/gprs_test.c @@ -5,6 +5,8 @@ #include #include +#include + #define ASSERT_FALSE(x) if (x) { printf("Should have returned false.\n"); abort(); } #define ASSERT_TRUE(x) if (!x) { printf("Should have returned true.\n"); abort(); } @@ -378,11 +380,146 @@ static void test_tlv_shift_functions() } } +/* Tests for gprs_gsup_messages.c */ + +#define TEST_IMSI_IE 0x01, 0x08, 0x21, 0x43, 0x65, 0x87, 0x09, 0x21, 0x43, 0xf5 +#define TEST_IMSI_STR "123456789012345" + +static void test_gsup_messages_dec_enc(void) +{ + int test_idx; + int rc; + + static const uint8_t send_auth_info_req[] = { + 0x08, + TEST_IMSI_IE + }; + + static const uint8_t send_auth_info_err[] = { + 0x09, + TEST_IMSI_IE, + 0x02, 0x01, 0x07 /* GPRS no allowed */ + }; + + static const uint8_t send_auth_info_res[] = { + 0x0a, + TEST_IMSI_IE, + 0x03, 0x22, /* Auth tuple */ + 0x20, 0x10, + 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, + 0x21, 0x04, + 0x21, 0x22, 0x23, 0x24, + 0x22, 0x08, + 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, + 0x03, 0x22, /* Auth tuple */ + 0x20, 0x10, + 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, + 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, + 0x21, 0x04, + 0xa1, 0xa2, 0xa3, 0xa4, + 0x22, 0x08, + 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, + }; + + static const uint8_t update_location_req[] = { + 0x04, + TEST_IMSI_IE, + }; + + static const uint8_t update_location_err[] = { + 0x05, + TEST_IMSI_IE, + 0x02, 0x01, 0x07 /* GPRS no allowed */ + }; + + static const uint8_t update_location_res[] = { + 0x06, + TEST_IMSI_IE, + 0x04, 0x00, /* PDP info complete */ + 0x05, 0x12, + 0x10, 0x01, 0x01, + 0x11, 0x02, 0xf1, 0x21, /* IPv4 */ + 0x12, 0x09, 0x04, 't', 'e', 's', 't', 0x03, 'a', 'p', 'n', + 0x05, 0x11, + 0x10, 0x01, 0x02, + 0x11, 0x02, 0xf1, 0x21, /* IPv4 */ + 0x12, 0x08, 0x03, 'f', 'o', 'o', 0x03, 'a', 'p', 'n', + }; + + static const uint8_t location_cancellation_req[] = { + 0x1c, + TEST_IMSI_IE, + 0x06, 0x01, 0x00, + }; + + static const uint8_t location_cancellation_err[] = { + 0x1d, + TEST_IMSI_IE, + 0x02, 0x01, 0x03 /* Illegal MS */ + }; + + static const uint8_t location_cancellation_res[] = { + 0x1e, + TEST_IMSI_IE, + }; + + static const struct test { + char *name; + const uint8_t *data; + size_t data_len; + } test_messages[] = { + {"Send Authentication Info Request", + send_auth_info_req, sizeof(send_auth_info_req)}, + {"Send Authentication Info Error", + send_auth_info_err, sizeof(send_auth_info_err)}, + {"Send Authentication Info Result", + send_auth_info_res, sizeof(send_auth_info_res)}, + {"Update Location Request", + update_location_req, sizeof(update_location_req)}, + {"Update Location Error", + update_location_err, sizeof(update_location_err)}, + {"Update Location Result", + update_location_res, sizeof(update_location_res)}, + {"Location Cancellation Request", + location_cancellation_req, sizeof(location_cancellation_req)}, + {"Location Cancellation Error", + location_cancellation_err, sizeof(location_cancellation_err)}, + {"Location Cancellation Result", + location_cancellation_res, sizeof(location_cancellation_res)}, + }; + + printf("Test GSUP message decoding/encoding\n"); + + for (test_idx = 0; test_idx < ARRAY_SIZE(test_messages); test_idx++) { + const struct test *t = &test_messages[test_idx]; + struct gprs_gsup_message gm = {0}; + struct msgb *msg = msgb_alloc(4096, "gsup_test"); + + printf(" Testing %s\n", t->name); + + rc = gprs_gsup_decode(t->data, t->data_len, &gm); + OSMO_ASSERT(rc >= 0); + + gprs_gsup_encode(msg, &gm); + + fprintf(stderr, " generated message: %s\n", msgb_hexdump(msg)); + fprintf(stderr, " original message: %s\n", osmo_hexdump(t->data, t->data_len)); + fprintf(stderr, " IMSI: %s\n", gm.imsi); + OSMO_ASSERT(strcmp(gm.imsi, TEST_IMSI_STR) == 0); + OSMO_ASSERT(msgb_length(msg) == t->data_len); + OSMO_ASSERT(memcmp(msgb_data(msg), t->data, t->data_len) == 0); + + msgb_free(msg); + } +} + int main(int argc, char **argv) { test_8_4_2(); test_gsm_03_03_apn(); test_tlv_shift_functions(); + test_gsup_messages_dec_enc(); printf("Done.\n"); return EXIT_SUCCESS; diff --git a/openbsc/tests/gprs/gprs_test.ok b/openbsc/tests/gprs/gprs_test.ok index 56d4b6543..eda1f36cf 100644 --- a/openbsc/tests/gprs/gprs_test.ok +++ b/openbsc/tests/gprs/gprs_test.ok @@ -14,4 +14,14 @@ N(U) = 510, V(UR) = 511 => retransmit N(U) = 481, V(UR) = 511 => retransmit N(U) = 479, V(UR) = 511 => new Test shift functions +Test GSUP message decoding/encoding + Testing Send Authentication Info Request + Testing Send Authentication Info Error + Testing Send Authentication Info Result + Testing Update Location Request + Testing Update Location Error + Testing Update Location Result + Testing Location Cancellation Request + Testing Location Cancellation Error + Testing Location Cancellation Result Done.