| #include <osmocom/core/utils.h> |
| #include <osmocom/gsm/rlp.h> |
| |
| struct rlp_testcase { |
| const char *name; |
| const char *encoded_hex; |
| struct osmo_rlp_frame_decoded decoded; |
| }; |
| |
| |
| const struct rlp_testcase testcases[] = { |
| { |
| .name = "XID1", |
| .encoded_hex = "f95f1100213d313d414e6108510600000000000000000000000000c13c6b", |
| .decoded = { |
| .version = 0, |
| .ftype = OSMO_RLP_FT_U, |
| .u_ftype = OSMO_RLP_U_FT_XID, |
| .s_ftype = 0, |
| .c_r = 1, |
| .p_f = 1, |
| .s_bits = 0, |
| .n_s = 0, |
| .n_r = 0, |
| .fcs = 0x6b3cc1, |
| .info = { 0x11, 0x00, 0x21, 0x3d, 0x31, 0x3d, 0x41, 0x4e, 0x61, 0x08, |
| 0x51, 0x06, }, |
| .info_len = 25, |
| }, |
| }, { |
| .name = "XID2", |
| .encoded_hex = "f95f1101213d313d41305106610774000008060000000000000000ba14a0", |
| .decoded = { |
| .version = 0, |
| .ftype = OSMO_RLP_FT_U, |
| .u_ftype = OSMO_RLP_U_FT_XID, |
| .s_ftype = 0, |
| .c_r = 1, |
| .p_f = 1, |
| .s_bits = 0, |
| .n_s = 0, |
| .n_r = 0, |
| .fcs = 0xa014ba, |
| .info = { 0x11, 0x01, 0x21, 0x3d, 0x31, 0x3d, 0x41, 0x30, 0x51, 0x06, |
| 0x61, 0x07, 0x74, 0x00, 0x00, 0x08, 0x06, }, |
| .info_len = 25, |
| }, |
| }, { |
| .name = "SABM", |
| .encoded_hex = "f91f0000000000000000000000000000000000000000000000000063b2f3", |
| .decoded = { |
| .version = 0, |
| .ftype = OSMO_RLP_FT_U, |
| .u_ftype = OSMO_RLP_U_FT_SABM, |
| .s_ftype = 0, |
| .c_r = 1, |
| .p_f = 1, |
| .s_bits = 0, |
| .n_s = 0, |
| .n_r = 0, |
| .fcs = 0xf3b263, |
| .info = {}, |
| .info_len = 0, |
| }, |
| }, { |
| .name = "UA", |
| .encoded_hex = "f8330000000000000000000000000000000000000000000000000029d801", |
| .decoded = { |
| .version = 0, |
| .ftype = OSMO_RLP_FT_U, |
| .u_ftype = OSMO_RLP_U_FT_UA, |
| .s_ftype = 0, |
| .c_r = 0, |
| .p_f = 1, |
| .s_bits = 0, |
| .n_s = 0, |
| .n_r = 0, |
| .fcs = 0x01d829, |
| .info = {}, |
| .info_len = 0, |
| }, |
| }, { |
| .name = "IS1", |
| .encoded_hex = "01001f000000000000000000000000000000000000000000000000f174ad", |
| .decoded = { |
| .version = 0, |
| .ftype = OSMO_RLP_FT_IS, |
| .u_ftype = 0, |
| .s_ftype = 0, |
| .c_r = 1, |
| .p_f = 0, |
| .s_bits = 0, |
| .n_s = 0, |
| .n_r = 0, |
| .fcs = 0xad74f1, |
| .info = { 0x1f, }, |
| .info_len = 25, |
| }, |
| }, { |
| .name = "IS2", |
| .encoded_hex = "010401661fffffffffffffffffffffffffffffffffffffffffffff388cd3", |
| .decoded = { |
| .version = 0, |
| .ftype = OSMO_RLP_FT_IS, |
| .u_ftype = 0, |
| .s_ftype = 0, |
| .c_r = 1, |
| .p_f = 0, |
| .s_bits = 0, |
| .n_s = 0, |
| .n_r = 1, |
| .fcs = 0xd38c38, |
| .info = { 0x01, 0x66, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0xff, 0xff, 0xff }, |
| .info_len = 25, |
| }, |
| }, { |
| .name = "DISC", |
| .encoded_hex = "f923000000000000000000000000000000000000000000000000007986f2", |
| .decoded = { |
| .version = 0, |
| .ftype = OSMO_RLP_FT_U, |
| .u_ftype = OSMO_RLP_U_FT_DISC, |
| .s_ftype = 0, |
| .c_r = 1, |
| .p_f = 1, |
| .s_bits = 0, |
| .n_s = 0, |
| .n_r = 0, |
| .fcs = 0xf28679, |
| .info = { }, |
| .info_len = 0, |
| }, |
| } |
| }; |
| |
| static void rlp_frame_print_u(const struct osmo_rlp_frame_decoded *rf) |
| { |
| OSMO_ASSERT(rf->ftype == OSMO_RLP_FT_U); |
| printf("C/R=%u P/F=%u U %s (FCS=0x%06x) %s\n", rf->c_r, rf->p_f, |
| get_value_string(osmo_rlp_ftype_u_vals, rf->u_ftype), |
| rf->fcs, |
| rf->u_ftype == OSMO_RLP_U_FT_XID ? osmo_hexdump_nospc(rf->info, rf->info_len) : ""); |
| } |
| |
| static void rlp_frame_print_s(const struct osmo_rlp_frame_decoded *rf) |
| { |
| OSMO_ASSERT(rf->ftype == OSMO_RLP_FT_S); |
| printf("C/R=%u P/F=%u S N(R)=%u %s (FCS=0x%06x)\n", rf->c_r, rf->p_f, |
| rf->n_r, get_value_string(osmo_rlp_ftype_s_vals, rf->s_ftype), |
| rf->fcs); |
| } |
| |
| static void rlp_frame_print_is(const struct osmo_rlp_frame_decoded *rf) |
| { |
| OSMO_ASSERT(rf->ftype == OSMO_RLP_FT_IS); |
| printf("C/R=%u P/F=%u IS N(R)=%u N(S)=%u %s (FCS=0x%06x) %s\n", rf->c_r, rf->p_f, |
| rf->n_r, rf->n_s, get_value_string(osmo_rlp_ftype_s_vals, rf->s_ftype), |
| rf->fcs, osmo_hexdump_nospc(rf->info, rf->info_len)); |
| } |
| |
| static void rlp_frame_print(const struct osmo_rlp_frame_decoded *rf) |
| { |
| switch (rf->ftype) { |
| case OSMO_RLP_FT_U: |
| rlp_frame_print_u(rf); |
| break; |
| case OSMO_RLP_FT_S: |
| rlp_frame_print_s(rf); |
| break; |
| case OSMO_RLP_FT_IS: |
| rlp_frame_print_is(rf); |
| break; |
| default: |
| OSMO_ASSERT(0); |
| } |
| } |
| |
| static void execute_rlp_test(const struct rlp_testcase *tc) |
| { |
| struct osmo_rlp_frame_decoded decoded; |
| uint8_t inbuf[240/8]; |
| int rc; |
| |
| printf("=== STARTING TESTCASE '%s'\n", tc->name); |
| |
| rc = osmo_hexparse(tc->encoded_hex, inbuf, sizeof(inbuf)); |
| OSMO_ASSERT(rc == 240/8); |
| |
| printf("Decoding %s:\n", tc->encoded_hex); |
| rc = osmo_rlp_decode(&decoded, 0, inbuf, rc); |
| OSMO_ASSERT(rc == 0); |
| |
| printf("Comparing...\n"); |
| rlp_frame_print(&decoded); |
| if (memcmp(&decoded, &tc->decoded, sizeof(decoded))) { |
| printf("DOESN'T MATCH EXPECTED DECODE:\n"); |
| rlp_frame_print(&tc->decoded); |
| } |
| |
| printf("Reencoding...\n"); |
| uint8_t reencoded[240/8]; |
| rc = osmo_rlp_encode(reencoded, sizeof(reencoded), &tc->decoded); |
| OSMO_ASSERT(rc == 240/8); |
| if (memcmp(inbuf, reencoded, sizeof(inbuf))) |
| printf("DOESN'T MATCH EXPECTED ENCODE FROM ABOVE\n"); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| for (unsigned int i = 0; i < ARRAY_SIZE(testcases); i++) { |
| const struct rlp_testcase *tc = &testcases[i]; |
| execute_rlp_test(tc); |
| } |
| |
| } |