| /* |
| * TypesTest.cpp Test the primitive data types |
| * |
| * Copyright (C) 2013 by Holger Hans Peter Freyther |
| * |
| * All Rights Reserved |
| * |
| * 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 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 "bts.h" |
| #include "tbf.h" |
| #include "gprs_debug.h" |
| #include "encoding.h" |
| #include "decoding.h" |
| |
| extern "C" { |
| #include <osmocom/core/application.h> |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/core/talloc.h> |
| #include <osmocom/core/utils.h> |
| } |
| |
| #define OSMO_ASSERT_STR_EQ(a, b) \ |
| do { \ |
| if (strcmp(a, b)) { \ |
| printf("String mismatch:\nGot:\t%s\nWant:\t%s\n", a, b); \ |
| OSMO_ASSERT(false); \ |
| } \ |
| } while (0) |
| |
| void *tall_pcu_ctx; |
| int16_t spoof_mnc = 0, spoof_mcc = 0; |
| |
| static void test_llc(void) |
| { |
| { |
| uint8_t data[LLC_MAX_LEN] = {1, 2, 3, 4, }; |
| uint8_t out; |
| gprs_llc llc; |
| llc.init(); |
| |
| OSMO_ASSERT(llc.chunk_size() == 0); |
| OSMO_ASSERT(llc.remaining_space() == LLC_MAX_LEN); |
| OSMO_ASSERT(llc.frame_length() == 0); |
| |
| llc.put_frame(data, 2); |
| OSMO_ASSERT(llc.remaining_space() == LLC_MAX_LEN - 2); |
| OSMO_ASSERT(llc.frame_length() == 2); |
| OSMO_ASSERT(llc.chunk_size() == 2); |
| OSMO_ASSERT(llc.frame[0] == 1); |
| OSMO_ASSERT(llc.frame[1] == 2); |
| |
| llc.append_frame(&data[3], 1); |
| OSMO_ASSERT(llc.remaining_space() == LLC_MAX_LEN - 3); |
| OSMO_ASSERT(llc.frame_length() == 3); |
| OSMO_ASSERT(llc.chunk_size() == 3); |
| |
| /* consume two bytes */ |
| llc.consume(&out, 1); |
| OSMO_ASSERT(llc.remaining_space() == LLC_MAX_LEN - 3); |
| OSMO_ASSERT(llc.frame_length() == 3); |
| OSMO_ASSERT(llc.chunk_size() == 2); |
| |
| /* check that the bytes are as we expected */ |
| OSMO_ASSERT(llc.frame[0] == 1); |
| OSMO_ASSERT(llc.frame[1] == 2); |
| OSMO_ASSERT(llc.frame[2] == 4); |
| |
| /* now fill the frame */ |
| llc.append_frame(data, llc.remaining_space() - 1); |
| OSMO_ASSERT(llc.fits_in_current_frame(1)); |
| OSMO_ASSERT(!llc.fits_in_current_frame(2)); |
| } |
| } |
| |
| static void test_rlc() |
| { |
| { |
| struct gprs_rlc_data rlc = { 0, }; |
| memset(rlc.block, 0x23, RLC_MAX_LEN); |
| uint8_t *p = rlc.prepare(20); |
| OSMO_ASSERT(p == rlc.block); |
| for (int i = 0; i < 20; ++i) |
| OSMO_ASSERT(p[i] == 0x2B); |
| for (int i = 20; i < RLC_MAX_LEN; ++i) |
| OSMO_ASSERT(p[i] == 0x0); |
| } |
| } |
| |
| static void test_rlc_v_b() |
| { |
| { |
| gprs_rlc_v_b vb; |
| vb.reset(); |
| |
| for (size_t i = 0; i < RLC_MAX_SNS; ++i) |
| OSMO_ASSERT(vb.is_invalid(i)); |
| |
| vb.mark_unacked(23); |
| OSMO_ASSERT(vb.is_unacked(23)); |
| |
| vb.mark_nacked(23); |
| OSMO_ASSERT(vb.is_nacked(23)); |
| |
| vb.mark_acked(23); |
| OSMO_ASSERT(vb.is_acked(23)); |
| |
| vb.mark_resend(23); |
| OSMO_ASSERT(vb.is_resend(23)); |
| |
| vb.mark_invalid(23); |
| OSMO_ASSERT(vb.is_invalid(23)); |
| } |
| } |
| |
| static void test_rlc_v_n() |
| { |
| { |
| gprs_rlc_v_n vn; |
| vn.reset(); |
| |
| OSMO_ASSERT(!vn.is_received(0x23)); |
| OSMO_ASSERT(vn.state(0x23) == GPRS_RLC_UL_BSN_INVALID); |
| |
| vn.mark_received(0x23); |
| OSMO_ASSERT(vn.is_received(0x23)); |
| OSMO_ASSERT(vn.state(0x23) == GPRS_RLC_UL_BSN_RECEIVED); |
| |
| vn.mark_missing(0x23); |
| OSMO_ASSERT(!vn.is_received(0x23)); |
| OSMO_ASSERT(vn.state(0x23) == GPRS_RLC_UL_BSN_MISSING); |
| } |
| } |
| |
| static void test_rlc_dl_ul_basic() |
| { |
| { |
| gprs_rlc_dl_window dl_win; |
| OSMO_ASSERT(dl_win.window_empty()); |
| OSMO_ASSERT(!dl_win.window_stalled()); |
| OSMO_ASSERT(dl_win.distance() == 0); |
| |
| dl_win.increment_send(); |
| OSMO_ASSERT(!dl_win.window_empty()); |
| OSMO_ASSERT(!dl_win.window_stalled()); |
| OSMO_ASSERT(dl_win.distance() == 1); |
| |
| for (int i = 1; i < 64; ++i) { |
| dl_win.increment_send(); |
| OSMO_ASSERT(!dl_win.window_empty()); |
| OSMO_ASSERT(dl_win.distance() == i + 1); |
| } |
| |
| OSMO_ASSERT(dl_win.distance() == 64); |
| OSMO_ASSERT(dl_win.window_stalled()); |
| |
| dl_win.raise(1); |
| OSMO_ASSERT(dl_win.distance() == 63); |
| OSMO_ASSERT(!dl_win.window_stalled()); |
| for (int i = 62; i >= 0; --i) { |
| dl_win.raise(1); |
| OSMO_ASSERT(dl_win.distance() == i); |
| } |
| |
| OSMO_ASSERT(dl_win.distance() == 0); |
| OSMO_ASSERT(dl_win.window_empty()); |
| |
| dl_win.increment_send(); |
| dl_win.increment_send(); |
| dl_win.increment_send(); |
| dl_win.increment_send(); |
| OSMO_ASSERT(dl_win.distance() == 4); |
| |
| for (int i = 0; i < 128; ++i) { |
| dl_win.increment_send(); |
| dl_win.increment_send(); |
| dl_win.raise(2); |
| OSMO_ASSERT(dl_win.distance() == 4); |
| } |
| } |
| |
| { |
| gprs_rlc_ul_window ul_win; |
| int count; |
| const char *rbb; |
| char win_rbb[65]; |
| uint8_t bin_rbb[8]; |
| win_rbb[64] = '\0'; |
| |
| ul_win.m_v_n.reset(); |
| |
| OSMO_ASSERT(ul_win.is_in_window(0)); |
| OSMO_ASSERT(ul_win.is_in_window(63)); |
| OSMO_ASSERT(!ul_win.is_in_window(64)); |
| |
| OSMO_ASSERT(!ul_win.m_v_n.is_received(0)); |
| |
| rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII"; |
| OSMO_ASSERT(ul_win.ssn() == 0); |
| ul_win.update_rbb(win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| Encoding::encode_rbb(win_rbb, bin_rbb); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(bin_rbb, win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| |
| /* simulate to have received 0, 1 and 5 */ |
| OSMO_ASSERT(ul_win.is_in_window(0)); |
| ul_win.receive_bsn(0); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(ul_win.m_v_n.is_received(0)); |
| OSMO_ASSERT(ul_win.v_q() == 1); |
| OSMO_ASSERT(ul_win.v_r() == 1); |
| OSMO_ASSERT(count == 1); |
| |
| rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIR"; |
| OSMO_ASSERT(ul_win.ssn() == 1); |
| ul_win.update_rbb(win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| Encoding::encode_rbb(win_rbb, bin_rbb); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(bin_rbb, win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| |
| OSMO_ASSERT(ul_win.is_in_window(1)); |
| ul_win.receive_bsn(1); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(ul_win.m_v_n.is_received(0)); |
| OSMO_ASSERT(ul_win.v_q() == 2); |
| OSMO_ASSERT(ul_win.v_r() == 2); |
| OSMO_ASSERT(count == 1); |
| |
| rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIRR"; |
| OSMO_ASSERT(ul_win.ssn() == 2); |
| ul_win.update_rbb(win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| Encoding::encode_rbb(win_rbb, bin_rbb); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(bin_rbb, win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| |
| OSMO_ASSERT(ul_win.is_in_window(5)); |
| ul_win.receive_bsn(5); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(ul_win.m_v_n.is_received(0)); |
| OSMO_ASSERT(ul_win.v_q() == 2); |
| OSMO_ASSERT(ul_win.v_r() == 6); |
| OSMO_ASSERT(count == 0); |
| |
| rbb = "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIRRIIIR"; |
| OSMO_ASSERT(ul_win.ssn() == 6); |
| ul_win.update_rbb(win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| Encoding::encode_rbb(win_rbb, bin_rbb); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(bin_rbb, win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| |
| OSMO_ASSERT(ul_win.is_in_window(65)); |
| OSMO_ASSERT(ul_win.is_in_window(2)); |
| OSMO_ASSERT(ul_win.m_v_n.is_received(5)); |
| ul_win.receive_bsn(65); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(count == 0); |
| OSMO_ASSERT(ul_win.m_v_n.is_received(5)); |
| OSMO_ASSERT(ul_win.v_q() == 2); |
| OSMO_ASSERT(ul_win.v_r() == 66); |
| |
| rbb = "IIIRIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIR"; |
| OSMO_ASSERT(ul_win.ssn() == 66); |
| ul_win.update_rbb(win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| Encoding::encode_rbb(win_rbb, bin_rbb); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(bin_rbb, win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| |
| OSMO_ASSERT(ul_win.is_in_window(2)); |
| OSMO_ASSERT(!ul_win.is_in_window(66)); |
| ul_win.receive_bsn(2); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(count == 1); |
| OSMO_ASSERT(ul_win.v_q() == 3); |
| OSMO_ASSERT(ul_win.v_r() == 66); |
| |
| OSMO_ASSERT(ul_win.is_in_window(66)); |
| ul_win.receive_bsn(66); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(count == 0); |
| OSMO_ASSERT(ul_win.v_q() == 3); |
| OSMO_ASSERT(ul_win.v_r() == 67); |
| |
| for (int i = 3; i <= 67; ++i) { |
| ul_win.receive_bsn(i); |
| ul_win.raise_v_q(); |
| } |
| |
| OSMO_ASSERT(ul_win.v_q() == 68); |
| OSMO_ASSERT(ul_win.v_r() == 68); |
| |
| ul_win.receive_bsn(68); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(ul_win.v_q() == 69); |
| OSMO_ASSERT(ul_win.v_r() == 69); |
| OSMO_ASSERT(count == 1); |
| |
| /* now test the wrapping */ |
| OSMO_ASSERT(ul_win.is_in_window(4)); |
| OSMO_ASSERT(!ul_win.is_in_window(5)); |
| ul_win.receive_bsn(4); |
| count = ul_win.raise_v_q(); |
| OSMO_ASSERT(count == 0); |
| |
| /* |
| * SSN wrap around case |
| * Should not expect any BSN as nacked. |
| */ |
| rbb = "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR"; |
| for (int i = 0; i < 128; ++i) { |
| ul_win.receive_bsn(i); |
| ul_win.raise_v_q(); |
| } |
| ul_win.receive_bsn(0); |
| ul_win.raise_v_q(); |
| ul_win.receive_bsn(1); |
| ul_win.raise_v_q(); |
| ul_win.update_rbb(win_rbb); |
| OSMO_ASSERT_STR_EQ(win_rbb, rbb); |
| OSMO_ASSERT(ul_win.ssn() == 2); |
| } |
| |
| { |
| uint16_t lost = 0, recv = 0; |
| char show_rbb[65]; |
| uint8_t bits_data[8]; |
| BTS dummy_bts; |
| gprs_rlc_dl_window dl_win; |
| bitvec bits; |
| int bsn_begin, bsn_end, num_blocks; |
| Ack_Nack_Description_t desc; |
| |
| dl_win.m_v_b.reset(); |
| |
| OSMO_ASSERT(dl_win.window_empty()); |
| OSMO_ASSERT(!dl_win.window_stalled()); |
| OSMO_ASSERT(dl_win.distance() == 0); |
| |
| dl_win.increment_send(); |
| OSMO_ASSERT(!dl_win.window_empty()); |
| OSMO_ASSERT(!dl_win.window_stalled()); |
| OSMO_ASSERT(dl_win.distance() == 1); |
| |
| for (int i = 0; i < 35; ++i) { |
| dl_win.increment_send(); |
| OSMO_ASSERT(!dl_win.window_empty()); |
| OSMO_ASSERT(dl_win.distance() == i + 2); |
| } |
| |
| uint8_t rbb_cmp[8] = { 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff }; |
| bits.data = bits_data; |
| bits.data_len = sizeof(bits_data); |
| bits.cur_bit = 0; |
| |
| memcpy(desc.RECEIVED_BLOCK_BITMAP, rbb_cmp, |
| sizeof(desc.RECEIVED_BLOCK_BITMAP)); |
| desc.FINAL_ACK_INDICATION = 0; |
| desc.STARTING_SEQUENCE_NUMBER = 35; |
| |
| num_blocks = Decoding::decode_gprs_acknack_bits( |
| &desc, &bits, |
| &bsn_begin, &bsn_end, &dl_win); |
| Decoding::extract_rbb(&bits, show_rbb); |
| printf("show_rbb: %s\n", show_rbb); |
| |
| dl_win.update(&dummy_bts, &bits, 0, &lost, &recv); |
| OSMO_ASSERT(lost == 0); |
| OSMO_ASSERT(recv == 35); |
| OSMO_ASSERT(bsn_begin == 0); |
| OSMO_ASSERT(bsn_end == 35); |
| OSMO_ASSERT(num_blocks == 35); |
| |
| dl_win.raise(dl_win.move_window()); |
| |
| for (int i = 0; i < 8; ++i) { |
| dl_win.increment_send(); |
| OSMO_ASSERT(!dl_win.window_empty()); |
| OSMO_ASSERT(dl_win.distance() == 2 + i); |
| } |
| |
| uint8_t rbb_cmp2[8] = { 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0x31 }; |
| bits.data = bits_data; |
| bits.data_len = sizeof(bits_data); |
| bits.cur_bit = 0; |
| |
| memcpy(desc.RECEIVED_BLOCK_BITMAP, rbb_cmp2, |
| sizeof(desc.RECEIVED_BLOCK_BITMAP)); |
| desc.FINAL_ACK_INDICATION = 0; |
| desc.STARTING_SEQUENCE_NUMBER = 35 + 8; |
| |
| num_blocks = Decoding::decode_gprs_acknack_bits( |
| &desc, &bits, |
| &bsn_begin, &bsn_end, &dl_win); |
| Decoding::extract_rbb(&bits, show_rbb); |
| printf("show_rbb: %s\n", show_rbb); |
| |
| lost = recv = 0; |
| dl_win.update(&dummy_bts, &bits, 0, &lost, &recv); |
| OSMO_ASSERT(lost == 5); |
| OSMO_ASSERT(recv == 3); |
| OSMO_ASSERT(bitvec_get_bit_pos(&bits, 0) == 0); |
| OSMO_ASSERT(bitvec_get_bit_pos(&bits, 7) == 1); |
| OSMO_ASSERT(bsn_begin == 35); |
| OSMO_ASSERT(bsn_end == 43); |
| OSMO_ASSERT(num_blocks == 8); |
| } |
| } |
| |
| void test_immediate_assign_rej() |
| { |
| uint8_t plen; |
| bitvec *immediate_assignment_rej = bitvec_alloc(22); |
| |
| bitvec_unhex(immediate_assignment_rej, |
| "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
| plen = Encoding::write_immediate_assignment_reject( |
| immediate_assignment_rej, 112, 100, |
| GSM_L1_BURST_TYPE_ACCESS_1); |
| |
| printf("assignment reject: %s\n", |
| osmo_hexdump(immediate_assignment_rej->data, 22)); |
| |
| OSMO_ASSERT(plen == 19); |
| /* RA value */ |
| OSMO_ASSERT(immediate_assignment_rej->data[3] == 0x7f); |
| /* Extended RA value */ |
| OSMO_ASSERT(immediate_assignment_rej->data[19] == 0xc0); |
| |
| bitvec_unhex(immediate_assignment_rej, |
| "2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b"); |
| |
| plen = Encoding::write_immediate_assignment_reject( |
| immediate_assignment_rej, 112, 100, |
| GSM_L1_BURST_TYPE_ACCESS_0); |
| |
| printf("assignment reject: %s\n", |
| osmo_hexdump(immediate_assignment_rej->data, 22)); |
| |
| OSMO_ASSERT(plen == 19); |
| /* RA value */ |
| OSMO_ASSERT(immediate_assignment_rej->data[3] == 0x70); |
| |
| } |
| |
| int main(int argc, char **argv) |
| { |
| osmo_init_logging(&gprs_log_info); |
| log_set_use_color(osmo_stderr_target, 0); |
| log_set_print_filename(osmo_stderr_target, 0); |
| |
| printf("Making some basic type testing.\n"); |
| test_llc(); |
| test_rlc(); |
| test_rlc_v_b(); |
| test_rlc_v_n(); |
| test_rlc_dl_ul_basic(); |
| test_immediate_assign_rej(); |
| return EXIT_SUCCESS; |
| } |
| |
| /* |
| * stubs that should not be reached |
| */ |
| extern "C" { |
| void l1if_pdch_req() { abort(); } |
| void l1if_connect_pdch() { abort(); } |
| void l1if_close_pdch() { abort(); } |
| void l1if_open_pdch() { abort(); } |
| } |