| /* Test SNDCP-XID Encoding/Decoding */ |
| |
| /* (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> |
| * All Rights Reserved |
| * |
| * Author: Philipp Maier |
| * |
| * 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 <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <openbsc/gprs_sndcp_xid.h> |
| #include <openbsc/debug.h> |
| |
| #include <osmocom/core/talloc.h> |
| #include <osmocom/core/utils.h> |
| |
| #include <osmocom/core/application.h> |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| /* Test SNDCP-XID decoding with a real world sample */ |
| static void test_xid_decode_realworld(const void *ctx) |
| { |
| struct llist_head *comp_fields; |
| int rc; |
| printf("Testing SNDCP XID-Decoder/Encoder (real world data)\n"); |
| |
| /* Example of a real world SNDCP-XID message */ |
| uint8_t xid[] = |
| { 0x00, 0x01, 0x00, 0x02, 0x31, 0x82, 0x02, 0x27, 0x89, 0xff, 0xe0, |
| 0x00, 0x0f, 0x00, 0xa8, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x02, |
| 0x01, 0x02, 0x00, 0x03, 0x01, 0x03, 0x00, 0x04, 0x01, 0x04, 0x00, 0x05, |
| 0x01, 0x05, 0x00, 0x06, 0x00, 0x07, 0x01, 0x07, 0x00, 0x08, 0x01, 0x08, |
| 0x80, 0x00, 0x04, 0x12, 0x00, 0x40, 0x07 }; |
| uint8_t xid_r[512]; |
| |
| /* Parse and show contained comp fields */ |
| comp_fields = gprs_sndcp_parse_xid(ctx, xid, sizeof(xid), NULL); |
| OSMO_ASSERT(comp_fields); |
| printf("Decoded:\n"); |
| gprs_sndcp_dump_comp_fields(comp_fields, DSNDCP); |
| |
| /* Encode comp-fields again */ |
| rc = gprs_sndcp_compile_xid(xid_r,sizeof(xid_r), comp_fields); |
| printf("Result length=%i\n",rc); |
| printf("Encoded: %s\n", osmo_hexdump_nospc(xid, sizeof(xid))); |
| printf("Rencoded: %s\n", osmo_hexdump_nospc(xid_r, rc)); |
| |
| OSMO_ASSERT(rc == 54); |
| OSMO_ASSERT(memcmp(xid, xid_r, sizeof(xid)) == 0); |
| |
| /* Free comp fields */ |
| talloc_free(comp_fields); |
| |
| printf("\n"); |
| } |
| |
| /* Encode and decode test with artificial test data */ |
| static void test_xid_encode_decode(const void *ctx) |
| { |
| printf("Testing SNDCP XID-Encoder/Decoder\n"); |
| |
| LLIST_HEAD(comp_fields); |
| struct gprs_sndcp_pcomp_rfc1144_params rfc1144_params; |
| struct gprs_sndcp_comp_field rfc1144_comp_field; |
| struct gprs_sndcp_pcomp_rfc2507_params rfc2507_params; |
| struct gprs_sndcp_comp_field rfc2507_comp_field; |
| struct gprs_sndcp_pcomp_rohc_params rohc_params; |
| struct gprs_sndcp_comp_field rohc_comp_field; |
| struct gprs_sndcp_dcomp_v42bis_params v42bis_params; |
| struct gprs_sndcp_comp_field v42bis_comp_field; |
| struct gprs_sndcp_dcomp_v44_params v44_params; |
| struct gprs_sndcp_comp_field v44_comp_field; |
| struct llist_head *comp_fields_dec; |
| |
| uint8_t xid[512]; |
| unsigned int xid_len = sizeof(xid); |
| int rc; |
| |
| memset(&rfc1144_comp_field, 0, sizeof(struct gprs_sndcp_comp_field)); |
| memset(&rfc2507_comp_field, 0, sizeof(struct gprs_sndcp_comp_field)); |
| memset(&rohc_comp_field, 0, sizeof(struct gprs_sndcp_comp_field)); |
| memset(&v42bis_comp_field, 0, sizeof(struct gprs_sndcp_comp_field)); |
| memset(&v44_comp_field, 0, sizeof(struct gprs_sndcp_comp_field)); |
| |
| /* Setup which NSAPIs shall make use of rfc1144 */ |
| rfc1144_params.nsapi[0] = 5; |
| rfc1144_params.nsapi_len = 1; |
| |
| /* Setup rfc1144 operating parameters */ |
| rfc1144_params.s01 = 7; |
| |
| /* Setup rfc1144 compression field */ |
| rfc1144_comp_field.p = 1; |
| rfc1144_comp_field.entity = 0; |
| rfc1144_comp_field.algo = RFC_1144; |
| rfc1144_comp_field.comp[RFC1144_PCOMP1] = 1; |
| rfc1144_comp_field.comp[RFC1144_PCOMP2] = 2; |
| rfc1144_comp_field.comp_len = RFC1144_PCOMP_NUM; |
| rfc1144_comp_field.rfc1144_params = &rfc1144_params; |
| |
| /* Setup which NSAPIs shall make use of rfc1144 */ |
| rfc2507_params.nsapi[0] = 6; |
| rfc2507_params.nsapi_len = 1; |
| |
| /* Setup rfc2507 operating parameters */ |
| rfc2507_params.f_max_period = 256; |
| rfc2507_params.f_max_time = 5; |
| rfc2507_params.max_header = 168; |
| rfc2507_params.tcp_space = 15; |
| rfc2507_params.non_tcp_space = 15; |
| |
| /* Setup rfc2507 compression field */ |
| rfc2507_comp_field.p = 1; |
| rfc2507_comp_field.entity = 1; |
| rfc2507_comp_field.algo = RFC_2507; |
| rfc2507_comp_field.comp[RFC2507_PCOMP1] = 3; |
| rfc2507_comp_field.comp[RFC2507_PCOMP2] = 4; |
| rfc2507_comp_field.comp[RFC2507_PCOMP3] = 5; |
| rfc2507_comp_field.comp[RFC2507_PCOMP4] = 6; |
| rfc2507_comp_field.comp[RFC2507_PCOMP5] = 7; |
| rfc2507_comp_field.comp_len = RFC2507_PCOMP_NUM; |
| rfc2507_comp_field.rfc2507_params = &rfc2507_params; |
| |
| /* Setup which NSAPIs shall make use of ROHC */ |
| rohc_params.nsapi[0] = 5; |
| rohc_params.nsapi[1] = 6; |
| rohc_params.nsapi[2] = 7; |
| rohc_params.nsapi[3] = 8; |
| rohc_params.nsapi[4] = 9; |
| rohc_params.nsapi[5] = 10; |
| rohc_params.nsapi[6] = 11; |
| rohc_params.nsapi[7] = 12; |
| rohc_params.nsapi[8] = 13; |
| rohc_params.nsapi[9] = 14; |
| rohc_params.nsapi[10] = 15; |
| rohc_params.nsapi_len = 11; |
| |
| /* Setup ROHC operating parameters */ |
| rohc_params.max_cid = 15; /* default */ |
| rohc_params.max_header = 168; /* default */ |
| rohc_params.profile[0] = ROHC_UNCOMPRESSED; |
| rohc_params.profile[1] = ROHC_RTP; |
| rohc_params.profile[2] = ROHCV2_RTP; |
| rohc_params.profile[3] = ROHC_UDP; |
| rohc_params.profile[4] = ROHCv2_UDP; |
| rohc_params.profile[5] = ROHC_ESP; |
| rohc_params.profile[6] = ROHCV2_ESP; |
| rohc_params.profile[7] = ROHC_IP; |
| rohc_params.profile[8] = ROHCV2_IP; |
| rohc_params.profile[9] = ROHC_LLA; |
| rohc_params.profile[10] = ROHC_LLA_WITH_R_MODE; |
| rohc_params.profile[11] = ROHC_TCP; |
| rohc_params.profile[12] = ROHC_RTP_UDP_LITE; |
| rohc_params.profile[13] = ROHCV2_RTP_UDP_LITE; |
| rohc_params.profile[14] = ROHC_UDP_LITE; |
| rohc_params.profile[15] = ROHCV2_UDP_LITE; |
| rohc_params.profile_len = 16; |
| |
| /* Setup ROHC compression field */ |
| rohc_comp_field.p = 1; |
| rohc_comp_field.entity = 2; |
| rohc_comp_field.algo = ROHC; |
| rohc_comp_field.comp[ROHC_PCOMP1] = 8; |
| rohc_comp_field.comp[ROHC_PCOMP2] = 9; |
| rohc_comp_field.comp_len = ROHC_PCOMP_NUM; |
| rohc_comp_field.rohc_params = &rohc_params; |
| |
| /* Setup which NSAPIs shall make use of v42bis */ |
| v42bis_params.nsapi[0] = 5; |
| v42bis_params.nsapi_len = 1; |
| |
| /* Setup v42bis operating parameters */ |
| v42bis_params.p0 = 3; |
| v42bis_params.p1 = 2048; |
| v42bis_params.p2 = 20; |
| |
| /* Setup v42bis compression field */ |
| v42bis_comp_field.p = 1; |
| v42bis_comp_field.entity = 3; |
| v42bis_comp_field.algo = V42BIS; |
| v42bis_comp_field.comp[V42BIS_DCOMP1] = 10; |
| v42bis_comp_field.comp_len = V42BIS_DCOMP_NUM; |
| v42bis_comp_field.v42bis_params = &v42bis_params; |
| |
| /* Setup which NSAPIs shall make use of v44 */ |
| v44_params.nsapi[0] = 5; |
| v44_params.nsapi_len = 1; |
| |
| /* Setup v44 operating parameters */ |
| v44_params.c0 = 0x80; |
| v44_params.p0 = 3; |
| v44_params.p1t = 300; |
| v44_params.p1r = 300; |
| v44_params.p3t = 600; |
| v44_params.p3r = 600; |
| |
| /* Setup v44 compression field */ |
| v44_comp_field.p = 1; |
| v44_comp_field.entity = 3; |
| v44_comp_field.algo = V44; |
| v44_comp_field.comp[V44_DCOMP1] = 10; |
| v44_comp_field.comp[V44_DCOMP2] = 11; |
| v44_comp_field.comp_len = V44_DCOMP_NUM; |
| v44_comp_field.v44_params = &v44_params; |
| |
| /* Add compression field(s) to list */ |
| llist_add(&v44_comp_field.list, &comp_fields); |
| llist_add(&v42bis_comp_field.list, &comp_fields); |
| llist_add(&rfc1144_comp_field.list, &comp_fields); |
| llist_add(&rfc2507_comp_field.list, &comp_fields); |
| llist_add(&rohc_comp_field.list, &comp_fields); |
| printf("Test input data:\n"); |
| gprs_sndcp_dump_comp_fields(&comp_fields, DSNDCP); |
| |
| /* Encode SNDCP-XID fields */ |
| rc = gprs_sndcp_compile_xid(xid, xid_len, &comp_fields); |
| OSMO_ASSERT(rc > 0); |
| |
| printf("Encoded: %s (%i bytes)\n", osmo_hexdump_nospc(xid, rc), rc); |
| |
| /* Parse and show contained comp fields */ |
| comp_fields_dec = gprs_sndcp_parse_xid(ctx, xid, rc, NULL); |
| OSMO_ASSERT(comp_fields_dec); |
| |
| printf("Decoded:\n"); |
| gprs_sndcp_dump_comp_fields(comp_fields_dec, DSNDCP); |
| |
| /* Free comp fields */ |
| talloc_free(comp_fields_dec); |
| } |
| |
| static struct log_info_cat gprs_categories[] = { |
| [DSNDCP] = { |
| .name = "DSNDCP", |
| .description = |
| "GPRS Sub-Network Dependent Control Protocol (SNDCP)", |
| .enabled = 1,.loglevel = LOGL_DEBUG, |
| } |
| }; |
| |
| static struct log_info info = { |
| .cat = gprs_categories, |
| .num_cat = ARRAY_SIZE(gprs_categories), |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| void *xid_ctx; |
| |
| osmo_init_logging(&info); |
| |
| xid_ctx = talloc_named_const(NULL, 0, "xid_ctx"); |
| |
| test_xid_decode_realworld(xid_ctx); |
| test_xid_encode_decode(xid_ctx); |
| |
| printf("Done\n"); |
| |
| talloc_report_full(xid_ctx, stderr); |
| OSMO_ASSERT(talloc_total_blocks(xid_ctx) == 1); |
| return 0; |
| } |
| |
| /* stubs */ |
| struct osmo_prim_hdr; |
| int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| { |
| abort(); |
| } |