| /* |
| * TypesTest.cpp Test the primitive data types |
| * |
| * Copyright (C) 2013 by Holger Hans Peter Freyther |
| * Copyright (C) 2019 by Sysmocom s.f.m.c. GmbH |
| * |
| * 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 "tbf_ul.h" |
| #include "tbf_dl.h" |
| #include "pcu_utils.h" |
| #include "gprs_debug.h" |
| #include "encoding.h" |
| #include "decoding.h" |
| #include "gprs_rlcmac.h" |
| #include "egprs_rlc_compression.h" |
| |
| extern "C" { |
| #include <osmocom/core/application.h> |
| #include <osmocom/core/msgb.h> |
| #include <osmocom/core/talloc.h> |
| #include <osmocom/core/utils.h> |
| #include <osmocom/core/bits.h> |
| #include <osmocom/core/fsm.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; |
| bool spoof_mnc_3_digits = false; |
| |
| static void test_llc(void) |
| { |
| { |
| uint8_t data[LLC_MAX_LEN] = {1, 2, 3, 4, }; |
| uint8_t out; |
| gprs_llc llc; |
| llc_init(&llc); |
| |
| OSMO_ASSERT(llc_chunk_size(&llc) == 0); |
| OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN); |
| OSMO_ASSERT(llc_frame_length(&llc) == 0); |
| |
| llc_put_frame(&llc, data, 2); |
| OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN - 2); |
| OSMO_ASSERT(llc_frame_length(&llc) == 2); |
| OSMO_ASSERT(llc_chunk_size(&llc) == 2); |
| OSMO_ASSERT(llc.frame[0] == 1); |
| OSMO_ASSERT(llc.frame[1] == 2); |
| |
| llc_append_frame(&llc, &data[3], 1); |
| OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN - 3); |
| OSMO_ASSERT(llc_frame_length(&llc) == 3); |
| OSMO_ASSERT(llc_chunk_size(&llc) == 3); |
| |
| /* consume two bytes */ |
| llc_consume_data(&llc, &out, 1); |
| OSMO_ASSERT(llc_remaining_space(&llc) == LLC_MAX_LEN - 3); |
| OSMO_ASSERT(llc_frame_length(&llc) == 3); |
| OSMO_ASSERT(llc_chunk_size(&llc) == 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(&llc, data, llc_remaining_space(&llc) - 1); |
| OSMO_ASSERT(llc_fits_in_current_frame(&llc, 1)); |
| OSMO_ASSERT(!llc_fits_in_current_frame(&llc, 2)); |
| } |
| } |
| |
| static void test_rlc() |
| { |
| { |
| struct gprs_rlc_data rlc = { 0, }; |
| memset(rlc.block, 0x23, RLC_MAX_LEN); |
| uint8_t *p = prepare(&rlc, 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[RLC_GPRS_WS/8]; |
| bitvec bits; |
| win_rbb[64] = '\0'; |
| bits.data = bin_rbb; |
| bits.data_len = sizeof(bin_rbb); |
| bits.cur_bit = 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); |
| bits.cur_bit = 0; |
| Encoding::encode_rbb(win_rbb, &bits); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(&bits, win_rbb); |
| //printf("win_rbb: %s\n", 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); |
| bits.cur_bit = 0; |
| Encoding::encode_rbb(win_rbb, &bits); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(&bits, 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); |
| bits.cur_bit = 0; |
| Encoding::encode_rbb(win_rbb, &bits); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(&bits, 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); |
| bits.cur_bit = 0; |
| Encoding::encode_rbb(win_rbb, &bits); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(&bits, 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); |
| bits.cur_bit = 0; |
| Encoding::encode_rbb(win_rbb, &bits); |
| printf("rbb: %s\n", osmo_hexdump(bin_rbb, sizeof(bin_rbb))); |
| Decoding::extract_rbb(&bits, 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]; |
| struct gprs_rlcmac_bts *dummy_bts = bts_alloc(the_pcu, 0); |
| 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); |
| talloc_free(dummy_bts); |
| } |
| } |
| |
| struct crbb_test { |
| bool has_crbb; |
| bitvec *crbb; |
| uint8_t length; |
| bool color_code; |
| }; |
| |
| static void extract_egprs_ul_ack_nack( |
| struct gprs_rlcmac_ul_tbf *tbf, |
| struct bitvec *dest, |
| uint16_t *ssn, |
| struct crbb_test *crbb_test, |
| struct bitvec **urbb, |
| bool is_final) |
| { |
| uint8_t bytelength; |
| |
| /* Start of Ack/Nack Description struct */ |
| uint8_t startbit_ack_nack = 0; |
| |
| bool has_length = false; |
| uint8_t length = 0; |
| |
| bool bow = false; |
| uint8_t urbb_length = 0; |
| dest->cur_bit = 0; |
| |
| /* ignore the first 8 bit */ |
| bitvec_get_uint(dest, 8); |
| |
| /* uplink ack/nack message content */ |
| OSMO_ASSERT(bitvec_get_uint(dest, 6) == 0b001001); |
| |
| /* ignore page mode*/ |
| bitvec_get_uint(dest, 2); |
| |
| /* fix 00 */ |
| OSMO_ASSERT(bitvec_get_uint(dest, 2) == 0); |
| |
| OSMO_ASSERT(bitvec_get_uint(dest, 5) == tbf->tfi()); |
| |
| /* egprs ack/nack */ |
| OSMO_ASSERT(bitvec_get_uint(dest, 1) == 1); |
| |
| /* fix 00 */ |
| OSMO_ASSERT(bitvec_get_uint(dest, 2) == 0); |
| |
| /* ignore Channel Coding Command */ |
| bitvec_get_uint(dest, 4); |
| |
| /* we always allow resegmentation */ |
| OSMO_ASSERT(bitvec_get_uint(dest, 1) == 1); |
| |
| /* ignore pre emptive transmission */ |
| bitvec_get_uint(dest, 1); |
| |
| /* ignore PRR retransmission request */ |
| bitvec_get_uint(dest, 1); |
| |
| /* ignore ARAC retransmission request */ |
| bitvec_get_uint(dest, 1); |
| |
| if (bitvec_get_uint(dest, 1)) { |
| OSMO_ASSERT((uint32_t) bitvec_get_uint(dest, 32) == tbf->tlli()); |
| } |
| |
| /* ignore TBF_EST */ |
| bitvec_get_uint(dest, 1); |
| |
| /* Timing Advance */ |
| if (bitvec_get_uint(dest, 1)) { |
| /* Timing Advance Value */ |
| if (bitvec_get_uint(dest, 1)) |
| bitvec_get_uint(dest, 6); |
| |
| /* Timing Advance Index*/ |
| if (bitvec_get_uint(dest, 1)) |
| bitvec_get_uint(dest, 6); |
| /* Timing Advance Timeslot Number */ |
| bitvec_get_uint(dest, 3); |
| } |
| |
| /* Packet Extended Timing Advance */ |
| if (bitvec_get_uint(dest, 1)) |
| bitvec_get_uint(dest, 2); |
| |
| /* Power Control Parameters */ |
| if (bitvec_get_uint(dest, 1)) { |
| /* Alpha */ |
| bitvec_get_uint(dest, 4); |
| for (int i=0; i<8 ; i++) { |
| /* Gamma */ |
| if (bitvec_get_uint(dest, 1)) |
| bitvec_get_uint(dest, 5); |
| } |
| } |
| |
| /* Extension Bits */ |
| if (bitvec_get_uint(dest, 1)) { |
| int length = bitvec_get_uint(dest, 6); |
| bitvec_get_uint(dest, length); |
| } |
| |
| /* Beging of the EGPRS Ack/Nack */ |
| has_length = bitvec_get_uint(dest, 1); |
| if (has_length) { |
| length = bitvec_get_uint(dest, 8); |
| } else { |
| /* remaining bits is the length */ |
| length = dest->data_len * 8 - dest->cur_bit; |
| } |
| startbit_ack_nack = dest->cur_bit; |
| |
| OSMO_ASSERT(bitvec_get_uint(dest, 1) == is_final); |
| |
| /* bow Begin Of Window */ |
| bow = bitvec_get_uint(dest, 1); |
| /* TODO: check if bow is always present in our implementation */ |
| |
| /* eow End Of Window */ |
| /* TODO: eow checking */ |
| bitvec_get_uint(dest, 1); |
| |
| *ssn = bitvec_get_uint(dest, 11); |
| if (bow) { |
| OSMO_ASSERT(*ssn == static_cast<gprs_rlc_ul_window *>(tbf->window())->v_q() + 1); |
| } |
| |
| crbb_test->has_crbb = bitvec_get_uint(dest, 1); |
| if (crbb_test->has_crbb) { |
| crbb_test->length = bitvec_get_uint(dest, 7); |
| crbb_test->color_code = bitvec_get_uint(dest, 1); |
| if (crbb_test->length % 8) |
| bytelength = crbb_test->length * 8 + 1; |
| else |
| bytelength = crbb_test->length * 8; |
| |
| crbb_test->crbb = bitvec_alloc(bytelength, tall_pcu_ctx); |
| for (int i=0; i<crbb_test->length; i++) |
| bitvec_set_bit(crbb_test->crbb, bitvec_get_bit_pos(dest, dest->cur_bit + i)); |
| |
| dest->cur_bit += crbb_test->length; |
| } |
| |
| OSMO_ASSERT(dest->cur_bit < dest->data_len * 8); |
| urbb_length = length - (dest->cur_bit - startbit_ack_nack); |
| |
| if (urbb_length > 0) { |
| if (urbb_length % 8) |
| bytelength = urbb_length / 8 + 1; |
| else |
| bytelength = urbb_length / 8; |
| |
| *urbb = bitvec_alloc(bytelength, tall_pcu_ctx); |
| for (int i=urbb_length; i>0; i--) { |
| bitvec_set_bit(*urbb, bitvec_get_bit_pos(dest, dest->cur_bit + i - 1)); |
| } |
| } |
| } |
| |
| static void check_egprs_bitmap(struct gprs_rlcmac_ul_tbf *tbf, uint16_t ssn, struct crbb_test *crbb_test, bitvec *urbb, unsigned int *rbb_size) |
| { |
| gprs_rlc_ul_window *win = static_cast<gprs_rlc_ul_window *>(tbf->window()); |
| uint8_t rbb_should[RLC_EGPRS_MAX_WS] = {0}; |
| bitvec rbb_should_bv; |
| rbb_should_bv.data = rbb_should; |
| rbb_should_bv.data_len = RLC_EGPRS_MAX_WS; |
| rbb_should_bv.cur_bit = 0; |
| |
| /* rbb starting at ssn without mod */ |
| bitvec *rbb_ssn_bv = bitvec_alloc(RLC_EGPRS_MAX_WS, tall_pcu_ctx); |
| |
| /* even any ssn is allowed, pcu should only use v_q() at least for now */ |
| OSMO_ASSERT(ssn == (win->v_q() + 1)); |
| |
| if (crbb_test->has_crbb) { |
| OSMO_ASSERT(0 == egprs_compress::decompress_crbb( |
| crbb_test->length, |
| crbb_test->color_code, |
| crbb_test->crbb->data, |
| rbb_ssn_bv)); |
| } |
| |
| if (urbb && urbb->cur_bit > 0) { |
| for (unsigned int i=0; i<urbb->cur_bit; i++) { |
| bitvec_set_bit(rbb_ssn_bv, bitvec_get_bit_pos(urbb, i)); |
| } |
| } |
| |
| /* check our rbb is equal the decompressed */ |
| rbb_should_bv.cur_bit = win->update_egprs_rbb(rbb_should); |
| |
| bool failed = false; |
| for (unsigned int i=0; i < rbb_ssn_bv->cur_bit; i++) { |
| if (bitvec_get_bit_pos(&rbb_should_bv, i) != |
| bitvec_get_bit_pos(rbb_ssn_bv, i)) |
| failed = true; |
| } |
| if (failed) { |
| fprintf(stderr, "SSN %d\n", ssn); |
| for (int i=win->v_q(); i<win->ws(); i++) { |
| fprintf(stderr, "bsn %d is %s\n", i, win->is_received( i) ? "received" : "MISS"); |
| } |
| char to_dump[256] = { 0 }; |
| bitvec_to_string_r(&rbb_should_bv, to_dump); |
| fprintf(stderr, "should: %s\n", to_dump); |
| memset(to_dump, 0x0, 256); |
| bitvec_to_string_r(rbb_ssn_bv, to_dump); |
| fprintf(stderr, "is : %s\n", to_dump); |
| OSMO_ASSERT(false); |
| } |
| |
| if (rbb_size) |
| *rbb_size = rbb_ssn_bv->cur_bit; |
| } |
| |
| static void free_egprs_ul_ack_nack(bitvec **rbb, struct crbb_test *crbb_test) |
| { |
| if (*rbb) { |
| bitvec_free(*rbb); |
| *rbb = NULL; |
| } |
| |
| if (crbb_test->crbb) { |
| bitvec_free(crbb_test->crbb); |
| crbb_test->crbb = NULL; |
| } |
| } |
| |
| static void test_egprs_ul_ack_nack() |
| { |
| bitvec *dest = bitvec_alloc(23, tall_pcu_ctx); |
| |
| fprintf(stderr, "############## test_egprs_ul_ack_nack\n"); |
| |
| struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0); |
| the_pcu->alloc_algorithm = alloc_algorithm_a; |
| bts->trx[0].pdch[4].enable(); |
| |
| GprsMs *ms = bts_alloc_ms(bts, 1, 1); |
| struct gprs_rlcmac_ul_tbf *tbf = ul_tbf_alloc(bts, ms, 0, true); |
| struct crbb_test crbb_test = {0}; |
| bitvec *rbb = NULL; |
| unsigned int rbb_size; |
| uint16_t ssn = 0; |
| gprs_rlc_ul_window *win = static_cast<gprs_rlc_ul_window *>(tbf->window()); |
| |
| fprintf(stderr, "************** Test with empty window\n"); |
| win->reset_state(); |
| win->set_ws(256); |
| |
| write_packet_uplink_ack(dest, tbf, false, 0); |
| extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false); |
| check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size); |
| free_egprs_ul_ack_nack(&rbb, &crbb_test); |
| OSMO_ASSERT(rbb_size == 0); |
| |
| fprintf(stderr, "************** Test with 1 lost packet\n"); |
| win->reset_state(); |
| win->set_ws(256); |
| win->receive_bsn(1); |
| |
| write_packet_uplink_ack(dest, tbf, false, 0); |
| extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false); |
| check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size); |
| free_egprs_ul_ack_nack(&rbb, &crbb_test); |
| OSMO_ASSERT(rbb_size == 1); |
| |
| fprintf(stderr, "************** Test with compressed window\n"); |
| win->reset_state(); |
| win->set_ws(128); |
| win->receive_bsn(127); |
| |
| write_packet_uplink_ack(dest, tbf, false, 0); |
| extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false); |
| check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size); |
| free_egprs_ul_ack_nack(&rbb, &crbb_test); |
| |
| fprintf(stderr, "************** Provoke an uncompressed ACK without EOW\n"); |
| win->reset_state(); |
| win->set_ws(384); |
| for (uint16_t i=1; i<384/2; i++) |
| win->receive_bsn(i*2); |
| |
| write_packet_uplink_ack(dest, tbf, false, 0); |
| extract_egprs_ul_ack_nack(tbf, dest, &ssn, &crbb_test, &rbb, false); |
| check_egprs_bitmap(tbf, ssn, &crbb_test, rbb, &rbb_size); |
| free_egprs_ul_ack_nack(&rbb, &crbb_test); |
| talloc_free(bts); |
| } |
| |
| static void check_imm_ass(struct gprs_rlcmac_tbf *tbf, bool dl, enum ph_burst_type bt, const uint8_t *exp, uint8_t len, |
| const char *kind) |
| { |
| uint8_t alpha = 7, gamma = 8, ta = 35, usf = 1, sz = sizeof(DUMMY_VEC) / 2, plen; |
| bitvec *immediate_assignment = bitvec_alloc(sz, tall_pcu_ctx); |
| struct msgb *m = msgb_alloc(80, "test"); |
| bool poll = true; |
| uint16_t ra = 13; |
| uint32_t ref_fn = 24, fn = 11; |
| int8_t ta_idx = 0; |
| |
| /* HACK: tbf can be NULL, so we cannot use tbf->trx here */ |
| struct gprs_rlcmac_trx trx = { }; |
| trx.pdch[5].trx = &trx; |
| trx.pdch[5].ts_no = 5; |
| trx.pdch[5].tsc = 1; |
| trx.arfcn = 877; |
| |
| bitvec_unhex(immediate_assignment, DUMMY_VEC); |
| plen = Encoding::write_immediate_assignment(&trx.pdch[5], tbf, |
| immediate_assignment, |
| dl, ra, ref_fn, ta, usf, |
| poll, fn, alpha, gamma, ta_idx, bt); |
| printf("[%u] %s Immediate Assignment <%s>:\n\t%s\n", plen, dl ? "DL" : "UL", kind, |
| osmo_hexdump(immediate_assignment->data, sz)); |
| |
| memcpy(msgb_put(m, sz), immediate_assignment->data, sz); |
| if (!msgb_eq_data_print(m, exp, len)) |
| printf("%s(%s, %s) failed!\n", __func__, dl ? "DL" : "UL", kind); |
| |
| msgb_free(m); |
| } |
| |
| void test_immediate_assign_dl() |
| { |
| struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0); |
| the_pcu->alloc_algorithm = alloc_algorithm_a; |
| bts->trx[0].pdch[2].enable(); |
| bts->trx[0].pdch[3].enable(); |
| GprsMs *ms = bts_alloc_ms(bts, 1, 0); |
| |
| struct gprs_rlcmac_tbf *tbf = dl_tbf_alloc(bts, ms, 0, false); |
| static uint8_t res[] = { 0x06, |
| 0x3f, /* Immediate Assignment Message Type (GSM48_MT_RR_IMM_ASS) */ |
| 0x30, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */ |
| 0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */ |
| /* ETSI TS 44.018 §10.5.2.30 Request Reference */ |
| 0x7f, /* RA */ |
| 0x03, 0x18, /* T1'-T3 */ |
| 0x23, /* TA */ |
| 0x00, /* 0-length §10.5.2.21 Mobile Allocation */ |
| /* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */ |
| 0xdf, 0xff, 0xff, 0xff, 0xf8, 0x17, 0x47, 0x08, 0x0b, 0x5b, 0x2b, 0x2b, }; |
| |
| check_imm_ass(tbf, true, GSM_L1_BURST_TYPE_ACCESS_2, res, sizeof(res), "ia_rest_downlink"); |
| talloc_free(bts); |
| } |
| |
| void test_immediate_assign_ul0m() |
| { |
| struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0); |
| the_pcu->alloc_algorithm = alloc_algorithm_a; |
| bts->trx[0].pdch[4].enable(); |
| bts->trx[0].pdch[5].enable(); |
| |
| GprsMs *ms = bts_alloc_ms(bts, 1, 0); |
| struct gprs_rlcmac_tbf *tbf = ul_tbf_alloc(bts, ms, 0, false); |
| static uint8_t res[] = { 0x06, |
| 0x3f, /* Immediate Assignment Message Type (GSM48_MT_RR_IMM_ASS) */ |
| 0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */ |
| 0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */ |
| /* ETSI TS 44.018 §10.5.2.30 Request Reference */ |
| 0x0d, /* RA */ |
| 0x03, 0x18, /* T1'-T3 */ |
| 0x23, /* TA */ |
| 0x00, /* 0-length §10.5.2.21 Mobile Allocation */ |
| /* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */ |
| 0xc8, 0x02, 0x1b, 0xa2, 0x0b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, }; |
| |
| check_imm_ass(tbf, false, GSM_L1_BURST_TYPE_ACCESS_0, res, sizeof(res), "ia_rest_uplink(MBA)"); |
| talloc_free(bts); |
| } |
| |
| void test_immediate_assign_ul0s() |
| { |
| static uint8_t res[] = { 0x06, |
| 0x3f, /* Immediate Assignment Message Type (GSM48_MT_RR_IMM_ASS) */ |
| 0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */ |
| 0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */ |
| /* ETSI TS 44.018 §10.5.2.30 Request Reference */ |
| 0x0d, /* RA */ |
| 0x03, 0x18, /* T1'-T3 */ |
| 0x23, /* TA */ |
| 0x00, /* 0-length §10.5.2.21 Mobile Allocation */ |
| /* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */ |
| 0xc5, 0xd0, 0x80, 0xb5, 0xab, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, }; |
| |
| check_imm_ass(NULL, false, GSM_L1_BURST_TYPE_ACCESS_0, res, sizeof(res), "ia_rest_uplink(SBA)"); |
| } |
| |
| void test_immediate_assign_ul1s() |
| { |
| struct gprs_rlcmac_bts *bts = bts_alloc(the_pcu, 0); |
| the_pcu->alloc_algorithm = alloc_algorithm_a; |
| bts->trx[0].pdch[1].enable(); |
| bts->trx[0].pdch[2].enable(); |
| |
| GprsMs *ms = bts_alloc_ms(bts, 1, 1); |
| struct gprs_rlcmac_tbf *tbf = ul_tbf_alloc(bts, ms, 0, false); |
| static uint8_t res[] = { 0x06, |
| 0x3f, /* Immediate Assignment Message Type (GSM48_MT_RR_IMM_ASS) */ |
| 0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */ |
| 0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */ |
| /* ETSI TS 44.018 §10.5.2.30 Request Reference */ |
| 0x7f, /* RA */ |
| 0x03, 0x18, /* T1'-T3 */ |
| 0x23, /* TA */ |
| 0x00, /* 0-length §10.5.2.21 Mobile Allocation */ |
| /* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */ |
| 0x46, 0xa0, 0x08, 0x00, 0x17, 0x44, 0x0b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, }; |
| |
| check_imm_ass(tbf, false, GSM_L1_BURST_TYPE_ACCESS_1, res, sizeof(res), "ia_rest_egprs_uplink(SBA)"); |
| talloc_free(bts); |
| } |
| |
| void test_immediate_assign_ul1m() |
| { |
| static uint8_t res[] = { 0x06, |
| 0x3f, /* Immediate Assignment Message Type (GSM48_MT_RR_IMM_ASS) */ |
| 0x10, /* §10.5.2.26 Page Mode and §10.5.2.25b Dedicated mode/TBF */ |
| 0x0d, 0x23, 0x6d, /* §10.5.2.25a Packet Channel Description */ |
| /* ETSI TS 44.018 §10.5.2.30 Request Reference */ |
| 0x7f, /* RA */ |
| 0x03, 0x18, /* T1'-T3 */ |
| 0x23, /* TA */ |
| 0x00, /* 0-length §10.5.2.21 Mobile Allocation */ |
| /* ETSI TS 44.018 §10.5.2.16 IA Rest Octets */ |
| 0x46, 0x97, 0x40, 0x0b, 0x58, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, }; |
| |
| check_imm_ass(NULL, false, GSM_L1_BURST_TYPE_ACCESS_1, res, sizeof(res), "ia_rest_egprs_uplink(MBA)"); |
| } |
| |
| void test_immediate_assign_rej() |
| { |
| uint8_t plen; |
| bitvec *immediate_assignment_rej = bitvec_alloc(22, tall_pcu_ctx); |
| |
| bitvec_unhex(immediate_assignment_rej, DUMMY_VEC); |
| plen = Encoding::write_immediate_assignment_reject( |
| immediate_assignment_rej, 112, 100, |
| GSM_L1_BURST_TYPE_ACCESS_1, 20); |
| |
| 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, DUMMY_VEC); |
| |
| plen = Encoding::write_immediate_assignment_reject( |
| immediate_assignment_rej, 112, 100, |
| GSM_L1_BURST_TYPE_ACCESS_0, 20); |
| |
| 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); |
| |
| } |
| |
| static void test_lsb() |
| { |
| uint8_t u = 0; |
| |
| printf("Testing LBS utility...\n"); |
| |
| do { |
| uint8_t x = pcu_lsb(u); /* equivalent of (1 << ffs(u)) / 2 */ |
| printf("%2X " OSMO_BIT_SPEC ": {%d} %3d\n", |
| u, OSMO_BIT_PRINT(u), pcu_bitcount(u), x); |
| u++; |
| } while (u); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| tall_pcu_ctx = talloc_named_const(NULL, 1, "types test context"); |
| if (!tall_pcu_ctx) |
| abort(); |
| |
| msgb_talloc_ctx_init(tall_pcu_ctx, 0); |
| osmo_init_logging2(tall_pcu_ctx, &gprs_log_info); |
| log_set_use_color(osmo_stderr_target, 0); |
| log_set_print_filename2(osmo_stderr_target, LOG_FILENAME_NONE); |
| log_set_print_category(osmo_stderr_target, 0); |
| log_set_print_category_hex(osmo_stderr_target, 0); |
| |
| log_set_category_filter(osmo_stderr_target, DTBF, 1, LOGL_INFO); |
| log_set_category_filter(osmo_stderr_target, DTBFUL, 1, LOGL_INFO); |
| osmo_fsm_log_addr(false); |
| |
| the_pcu = gprs_pcu_alloc(tall_pcu_ctx); |
| |
| 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_dl(); |
| test_immediate_assign_ul0m(); |
| test_immediate_assign_ul0s(); |
| test_immediate_assign_ul1m(); |
| test_immediate_assign_ul1s(); |
| test_immediate_assign_rej(); |
| test_lsb(); |
| test_egprs_ul_ack_nack(); |
| |
| talloc_free(the_pcu); |
| |
| 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(); } |
| } |