| /* Test LLC-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_llc_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 XID encoding */ |
| static void test_xid_encode(const void *ctx) |
| { |
| struct gprs_llc_xid_field xid_field_1; |
| struct gprs_llc_xid_field xid_field_2; |
| struct gprs_llc_xid_field xid_field_3; |
| struct gprs_llc_xid_field xid_field_4; |
| LLIST_HEAD(xid_fields); |
| uint8_t xid[255]; |
| uint8_t xid_expected[] = |
| { 0x10, 0x8c, 0x14, 0x43, 0x43, 0x43, 0x43, 0x43, 0x0b, 0x42, 0x42, |
| 0x42, 0x05, 0x41 }; |
| int rc; |
| |
| printf("Testing LLC XID-Encoder\n"); |
| |
| /* Setup some simple XID data */ |
| xid_field_1.type = 1; |
| xid_field_2.type = 2; |
| xid_field_3.type = 3; |
| xid_field_4.type = 4; |
| |
| xid_field_1.data = (uint8_t *) "A"; |
| xid_field_2.data = (uint8_t *) "BBB"; |
| xid_field_3.data = (uint8_t *) "CCCCC"; |
| xid_field_4.data = NULL; |
| |
| xid_field_1.data_len = 1; |
| xid_field_2.data_len = 3; |
| xid_field_3.data_len = 5; |
| xid_field_4.data_len = 0; |
| |
| llist_add(&xid_field_4.list, &xid_fields); |
| llist_add(&xid_field_3.list, &xid_fields); |
| llist_add(&xid_field_2.list, &xid_fields); |
| llist_add(&xid_field_1.list, &xid_fields); |
| |
| printf("Data to encode:\n"); |
| gprs_llc_dump_xid_fields(&xid_fields, DSNDCP); |
| |
| /* Encode data */ |
| rc = gprs_llc_compile_xid(xid, sizeof(xid), &xid_fields); |
| OSMO_ASSERT(rc == 14); |
| printf("Encoded: %s (%i bytes)\n", osmo_hexdump_nospc(xid, rc), rc); |
| printf("Expected: %s (%i bytes)\n", |
| osmo_hexdump_nospc(xid_expected, sizeof(xid_expected)), |
| (int)sizeof(xid_expected)); |
| |
| OSMO_ASSERT(memcmp(xid_expected, xid, sizeof(xid_expected)) == 0); |
| |
| printf("\n"); |
| } |
| |
| /* Test XID decoding */ |
| static void test_xid_decode(const void *ctx) |
| { |
| struct llist_head *xid_fields; |
| int rc; |
| |
| printf("Testing LLC XID-Decoder/Encoder\n"); |
| |
| /* Example of a real world LLC-XID message */ |
| uint8_t xid[] = |
| { 0x01, 0x00, 0x16, 0x05, 0xf0, 0x1a, 0x05, 0xf0, 0xac, 0xd8, 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]; |
| |
| /* Decode and display XID fields */ |
| xid_fields = gprs_llc_parse_xid(ctx, xid, sizeof(xid)); |
| OSMO_ASSERT(xid_fields); |
| |
| printf("Decoded:\n"); |
| gprs_llc_dump_xid_fields(xid_fields, DSNDCP); |
| |
| |
| /* Encode xid-fields again */ |
| rc = gprs_llc_compile_xid(xid_r, sizeof(xid_r), xid_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 == 64); |
| OSMO_ASSERT(memcmp(xid, xid_r, sizeof(xid)) == 0); |
| |
| /* Free xid fields */ |
| talloc_free(xid_fields); |
| |
| printf("\n"); |
| } |
| |
| 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(xid_ctx); |
| test_xid_encode(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(); |
| } |