Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 1 | /* Test v42bis Compression/Decompression */ |
| 2 | |
| 3 | /* (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> |
| 4 | * All Rights Reserved |
| 5 | * |
| 6 | * Author: Philipp Maier |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU Affero General Public License as published by |
| 10 | * the Free Software Foundation; either version 3 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU Affero General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Affero General Public License |
| 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | */ |
| 21 | |
Neels Hofmeyr | 396f2e6 | 2017-09-04 15:13:25 +0200 | [diff] [blame] | 22 | #include <osmocom/sgsn/v42bis.h> |
| 23 | #include <osmocom/sgsn/v42bis_private.h> |
| 24 | #include <osmocom/sgsn/debug.h> |
Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 25 | |
| 26 | #include <osmocom/core/talloc.h> |
| 27 | #include <osmocom/core/utils.h> |
| 28 | |
| 29 | #include <osmocom/core/application.h> |
| 30 | |
| 31 | #include <stdio.h> |
| 32 | #include <string.h> |
| 33 | #include <stdbool.h> |
| 34 | |
| 35 | /* V.42bis compression parameters */ |
| 36 | #define P0 3 /* Direction */ |
| 37 | #define P1 512 /* Max number of codewords */ |
| 38 | #define P2 20 /* Max string length */ |
| 39 | |
| 40 | /* V.42bis compression buffer size |
| 41 | * (Does not affect the compression/decompression result) */ |
| 42 | #define MAX_BLOCK_SIZE 1024 |
| 43 | |
| 44 | /* Compressed sample packets, sniffed from real communication */ |
| 45 | #define COMPR_PACKETS_LEN 33 |
| 46 | char *compr_packets[] = { |
| 47 | /* K800i */ |
| 48 | "4500010268000700004006cefac0a80002550d93d740000050462c7ba7e4d1753a80184000aad500000101080a0001a670084dafb4474554202f20485454502f312e310d0a4163636570743a206d756c7469706172742f6d697865642c206170706c69636174696f6e2f766e642e7761702e6d756c7469706172742e6d6978656433005ab97a052b960d59b368d5b2ddb3e60e9c372ef610b6dbf56bd8b165030f2e7cf88dd63b68f64c3d9b76ed1cb58847b490d122e8d0a24761185913d50e1aa423f0dc49036387d6d7b169e4d0cac68e1cd93b70f0804123f7eee03372dcc801038f193b306a68b5b2864d9a3b629a30b1a2b5081b35384613357a07c6133271d4e021a3064d52347182ee81b119c69c3a72d2b079b37e4409c177e6f4902163738cdd71f8a0a903d68ec21866e4c0918185087dfb329cec9831834d951a337c4a2e1174891c3badf5e8d113a38f1c336e24520c8a65751d1844d4c7696d852c1f240e992becf8918d0c9145465441939fcc6a1950a206b7e1fca38e1145eaebc129230aeb24f57bcab011c3c68829f5efe7bfcbe4c814e731668c3042f6fef93a62d9909561e4c91123c163d0085a3a4e1c3466c6c649ea048d519d5ff3a0f95ef4280c2471269e61633ee9193469de8845a3554d9fa74199c48622e7fa7dac30ac602f9af40a9ef0236a54268247cd7f923946d0a8d1c3c68d1e35788c5002e54ad0a00100", |
| 49 | "4500010268000900004006cef8c0a80002550d93d740000050462c7ba7e4d1753a801840007e7f00000101080a0001d1cc084db0ae474554202f20485454502f312e310d0a4163636570743a206d756c7469706172742f6d697865642c206170706c69636174696f6e2f766e642e7761702e6d756c7469706172742e6d6978656433005ab97a052b960d59b368d5b2ddb3e60e9c372ef610b6dbf56bd8b165030f2e7cf88dd63b68f64c3d9b76ed1cb58847b490d122e8d0a24761185913d50e1aa423f0dc49036387d6d7b169e4d0cac68e1cd93b70f0804123f7eee03372dcc801038f193b306a68b5b2864d9a3b629a30b1a2b5081b35384613357a07c6133271d4e021a3064d52347182ee81b119c69c3a72d2b079b37e4409c177e6f4902163738cdd71f8a0a903d68ec21866e4c0918185087dfb329cec9831834d951a337c4a2e1174891c3badf5e8d113a38f1c336e24520c8a65751d1844d4c7696d852c1f240e992becf8918d0c9145465441939fcc6a1950a206b7e1fca38e1145eaebc129230aeb24f57bcab011c3c68829f5efe7bfcbe4c814e731668c3042f6fef93a62d9909561e4c91123c163d0085a3a4e1c3466c6c649ea048d519d5ff3a0f95ef4280c2471269e61633ee9193469de8845a3554d9fa74199c48622e7fa7dac30ac602f9af40a9ef0236a54268247cd7f923946d0a8d1c3c68d1e35788c5002e54ad0a00100", |
| 50 | "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", |
| 51 | "4500010268000c00004006cef5c0a80002550d93d740000050462c7ba7e4d1753b80193fff65ab00000101080a0002d5f4084dc558474554202f20485454502f312e310d0a4163636570743a206d756c7469706172742f6d697865642c206170706c69636174696f6e2f766e642e7761702e6d756c7469706172742e6d6978656433005ab97a052b960d59b368d5b2ddb3e60e9c372ef610b6dbf56bd8b165030f2e7cf88dd63b68f64c3d9b76ed1cb58847b490d122e8d0a24761185913d50e1aa423f0dc49036387d6d7b169e4d0cac68e1cd93b70f0804123f7eee03372dcc801038f193b306a68b5b2864d9a3b629a30b1a2b5081b35384613357a07c6133271d4e021a3064d52347182ee81b119c69c3a72d2b079b37e4409c177e6f4902163738cdd71f8a0a903d68ec21866e4c0918185087dfb329cec9831834d951a337c4a2e1174891c3badf5e8d113a38f1c336e24520c8a65751d1844d4c7696d852c1f240e992be4e8918d8c9045465441939fcc6a1950a206b7e1dca38e1145eaebb929230aeb24f579cab011c3c68829f5efe7afcbe4c814e731668c3042f6fef93a62d9909561e4c91123c163d0084a3a4e1c3466c6c649ea048dd19c5ff3a0f95ef4280c2471269e61633ee9193469de8845a3554d9fa74199c48622c7fa7dac30ac5c2f9af40a1ef0236a502682478dff913946d0a8d1c3c68d1e35788c5002e54ad0a00100", |
| 52 | "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", |
| 53 | "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", |
| 54 | "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", |
| 55 | "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", |
| 56 | "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", |
| 57 | "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", |
| 58 | "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", |
| 59 | "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", |
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| 69 | "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", |
| 70 | "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", |
| 71 | "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", |
| 72 | "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", |
| 73 | "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", |
| 74 | "4500010265009400004006ce70c0a80002550d93d740060050c3143614a11fa986801836e1f43c00000101080a000545b010fc38b7474554202f382d4269742f4d617474656c2e47494620485454502f312e310d0a4163636570743a206d756c7469706172742f6d697865642c206170706c69636174696f6e2f766e642e7761702e6d756c7469706172742e6d697865642c206170706c69636174696f6e2f766e642e7761702e7868746d6c2b786d6c2c206170706c69636174696f6e2f7868746d3300942dbf512b744fcfbb79f7ced17b79440b192da452b58a1586913562eda0c93a02cf9d343076a8edfd9b460eb56cecc801be03070f18348e277f3e23c78d1c30f098b103a3865a2b6bd8a4b923a609132b6a77aac111bbead53b309e9089a3060f193568b4a28923750f8cd430e6d4919386cd1bfc234a44be33a7870c19a963248fc3074d1db87630c63023078e0c2c440a1e94e164c78c196caad498f1347409a94be4d8d9ad478f9e187de498710352a4542cb9ebc020723fce6e2b74f920e1a81da34a966c64bc2c32a20a1a866472cb8022f6b90dee2c758c2862504f521951742731e854868d1836464c31889021612647a6708f31638411ba08e9d791bbd8c89323469ec7a02195769c3868cc7ca5abd5099aab4bdfe641c3de2a561848e2843cc366bed63368d2bc018a46ad9a3e60a5fe4db371a356881229eae4f97368d19152a50600", |
| 75 | "4500010263009900004006ce6dc0a80002550d93d740040050c313623f2189e66b801839a5739a00000101080a0005464c10fc38f3474554202f382d4269742f4f7269632e47494620485454502f312e310d0a4163636570743a206d756c7469706172742f6d697865642c206170706c69636174696f6e2f766e642e7761702e6d756c7469706172742e6d697865642c206170706c69636174696f6e2f766e642e7761702e7868746d6c2b786d6c2c206170706c69636174696f6e2f7868746d6c2b330095dfa4bd83668f4fc578f5eab13ca2858c1651a756bd0ac3c89ab076d0601d81e74e1a183bd2fa064e23475a3676e404df8183070c1ac895439f91e3460e1878ccd8815123ad95356cd2dc11d3848995b43cd5e0904dd5ea1d184fc8c45183878c1a3459d1c489ba0706631873eac849c3e64dfe112520df99d343860cc63194c7e18326e8768c31ccc88123030b1183086538d93163069b2a356638155d22ea12397678ebd1a327461f3966dc7c0c19158bee3a3088e08fc3db8a5c3e4838dac19872251b192e8b8ca882862119dd32a084856ea3fb4a1d238a1cd483544694dd490e36956123868d11530e2a642898c99129dd63cc186144aec2fa75e0b2912bc3c8932346a0c7a01135769c3868ccc48d93d5091aab4adde641d3beea551848e2803cc3867ed63368d2bc818b26ad9a3e5fa3f64db3716356881229e6d4d91328519151a30600", |
| 76 | "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", |
| 77 | "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", |
| 78 | "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", |
| 79 | |
| 80 | /* SGSN with IAXMODEM V.42bis */ |
| 81 | "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", |
| 82 | "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", |
| 83 | }; |
| 84 | |
| 85 | /* Uncompressed sample packets, sniffed from real communication */ |
| 86 | #define UNCOMPR_PACKETS_LEN 11 |
| 87 | char *uncompr_packets[] = { |
| 88 | "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", |
| 89 | "4510004046dd40004006a9a7c0a8646ec0a864640017ad8b81980100f3ac984d801800e32a1600000101080a000647de06d1bf5efffd18fffd20fffd23fffd27", |
| 90 | "4510005b46de40004006a98bc0a8646ec0a864640017ad8b8198010cf3ac984d801800e3867500000101080a000647df06d1bf61fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0", |
| 91 | "4510003746df40004006a9aec0a8646ec0a864640017ad8b81980133f3ac989f801800e35fd700000101080a000647e106d1bf63fffd01", |
| 92 | "4510003746e040004006a9adc0a8646ec0a864640017ad8b81980136f3ac98a2801800e35fd200000101080a000647e106d1bf64fffb01", |
| 93 | "4510007446e140004006a96fc0a8646ec0a864640017ad8b81980139f3ac98a5801800e37b9b00000101080a000647e206d1bf640d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a0d0a", |
| 94 | "4510004246e240004006a9a0c0a8646ec0a864640017ad8b81980179f3ac98a5801800e3dab000000101080a000647ec06d1bf6f706f6c6c7578206c6f67696e3a20", |
| 95 | "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", |
| 96 | "450000e2971b40003706026c550d93d7c0a8000200504047217f5922c903759c8018007c4fb400000101080a1153ce39002cf6e8485454502f312e3120333034204e6f74204d6f6469666965640d0a446174653a205475652c2033302041756720323031362031363a33363a343020474d540d0a5365727665723a204170616368650d0a436f6e6e656374696f6e3a204b6565702d416c6976650d0a4b6565702d416c6976653a2074696d656f75743d322c206d61783d313030300d0a455461673a2022346338613134392d3436652d34323736386138656338656330220d0a0d0a", |
| 97 | "450000e224f1400037067496550d93d7c0a80002005040489387ebf0c904389f8018007cec5700000101080a1153cf01002cf8fc485454502f312e3120333034204e6f74204d6f6469666965640d0a446174653a205475652c2033302041756720323031362031363a33363a343020474d540d0a5365727665723a204170616368650d0a436f6e6e656374696f6e3a204b6565702d416c6976650d0a4b6565702d416c6976653a2074696d656f75743d322c206d61783d313030300d0a455461673a2022346338613338302d3861362d34323736383761323236383830220d0a0d0a", |
| 98 | "450000e2b66140003706e325550d93d7c0a8000200504049fbb679bcc9051ea48018007cebea00000101080a1153cfdc002cfdb4485454502f312e3120333034204e6f74204d6f6469666965640d0a446174653a205475652c2033302041756720323031362031363a33363a343120474d540d0a5365727665723a204170616368650d0a436f6e6e656374696f6e3a204b6565702d416c6976650d0a4b6565702d416c6976653a2074696d656f75743d322c206d61783d313030300d0a455461673a2022346338313336642d3138642d34353832306530393638303430220d0a0d0a", |
| 99 | }; |
| 100 | |
| 101 | /* Calculate IP Header checksum */ |
| 102 | static uint16_t calc_ip_csum(uint8_t *data, int len) |
| 103 | { |
| 104 | int i; |
| 105 | uint32_t accumulator = 0; |
| 106 | uint16_t *pointer = (uint16_t *) data; |
| 107 | |
| 108 | for (i = len; i > 1; i -= 2) { |
| 109 | accumulator += *pointer; |
| 110 | pointer++; |
| 111 | } |
| 112 | |
| 113 | if (len % 2) |
| 114 | accumulator += *pointer; |
| 115 | |
| 116 | accumulator = (accumulator & 0xffff) + ((accumulator >> 16) & 0xffff); |
| 117 | accumulator += (accumulator >> 16) & 0xffff; |
| 118 | return (~accumulator); |
| 119 | } |
| 120 | |
| 121 | /* Calculate TCP/IP checksum */ |
| 122 | static uint16_t calc_tcpip_csum(const void *ctx, uint8_t *packet, int len) |
| 123 | { |
| 124 | uint8_t *buf; |
| 125 | uint16_t csum; |
| 126 | |
| 127 | buf = talloc_zero_size(ctx, len); |
| 128 | memset(buf, 0, len); |
| 129 | memcpy(buf, packet + 12, 8); |
| 130 | buf[9] = packet[9]; |
| 131 | buf[11] = (len - 20) & 0xFF; |
| 132 | buf[10] = (len - 20) >> 8 & 0xFF; |
| 133 | memcpy(buf + 12, packet + 20, len - 20); |
| 134 | csum = calc_ip_csum(buf, len - 20 + 12); |
| 135 | talloc_free(buf); |
| 136 | return csum; |
| 137 | } |
| 138 | |
| 139 | /* A simple function to show the ascii content of a packet */ |
| 140 | void show_packet(uint8_t *packet, int len) |
| 141 | { |
| 142 | int i; |
| 143 | char c; |
| 144 | for (i = 0; i < len; i++) { |
| 145 | c = packet[i]; |
| 146 | if (c >= 0x20 && c <= 0x7E) |
| 147 | printf("%c", c); |
| 148 | else |
| 149 | printf("."); |
| 150 | } |
| 151 | printf("\n"); |
| 152 | } |
| 153 | |
| 154 | /* A struct to capture the output data of compressor and decompressor */ |
| 155 | struct v42bis_output_buffer { |
| 156 | uint8_t *buf; |
| 157 | uint8_t *buf_pointer; |
| 158 | int len; |
| 159 | }; |
| 160 | |
| 161 | /* A simple testpattern generator */ |
| 162 | static void gen_test_pattern(uint8_t *data, int len) |
| 163 | { |
| 164 | int i; |
| 165 | for (i = 0; i < len; i++) |
| 166 | data[i] = i & 0xF0; |
| 167 | } |
| 168 | |
| 169 | /* Handler to capture the output data from the compressor */ |
| 170 | void tx_v42bis_frame_handler(void *user_data, const uint8_t *pkt, int len) |
| 171 | { |
| 172 | struct v42bis_output_buffer *output_buffer = |
| 173 | (struct v42bis_output_buffer *)user_data; |
| 174 | memcpy(output_buffer->buf_pointer, pkt, len); |
| 175 | output_buffer->buf_pointer += len; |
| 176 | output_buffer->len += len; |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | /* Handler to capture the output data from the decompressor */ |
| 181 | void tx_v42bis_data_handler(void *user_data, const uint8_t *buf, int len) |
| 182 | { |
| 183 | /* stub, never used */ |
| 184 | OSMO_ASSERT(false); |
| 185 | return; |
| 186 | } |
| 187 | |
| 188 | /* Handler to capture the output data from the compressor */ |
| 189 | void rx_v42bis_frame_handler(void *user_data, const uint8_t *pkt, int len) |
| 190 | { |
| 191 | /* stub, never used */ |
| 192 | OSMO_ASSERT(false); |
| 193 | return; |
| 194 | } |
| 195 | |
| 196 | /* Handler to capture the output data from the decompressor */ |
| 197 | void rx_v42bis_data_handler(void *user_data, const uint8_t *buf, int len) |
| 198 | { |
| 199 | struct v42bis_output_buffer *output_buffer = |
| 200 | (struct v42bis_output_buffer *)user_data; |
| 201 | memcpy(output_buffer->buf_pointer, buf, len); |
| 202 | output_buffer->buf_pointer += len; |
| 203 | output_buffer->len += len; |
| 204 | return; |
| 205 | } |
| 206 | |
| 207 | /* Test V.42bis compression and decompression */ |
| 208 | static void v42bis(const void *ctx, int mode, uint8_t *testvec, int len) |
| 209 | { |
| 210 | v42bis_state_t *tx_state; |
| 211 | v42bis_state_t *rx_state; |
| 212 | uint8_t *uncompressed_original; |
| 213 | uint8_t *compressed; |
| 214 | uint8_t *uncompressed; |
| 215 | |
| 216 | uncompressed_original = talloc_zero_size(ctx, len); |
| 217 | uncompressed = talloc_zero_size(ctx, len); |
| 218 | |
| 219 | /* Note: We allocate double the size for the compressed buffer, |
| 220 | * because in some cases the compression may increase the amount. |
| 221 | * of data. */ |
| 222 | compressed = talloc_zero_size(ctx, len * 2); |
| 223 | |
| 224 | int rc; |
| 225 | int rc_sum = 0; |
| 226 | struct v42bis_output_buffer compressed_data; |
| 227 | struct v42bis_output_buffer uncompressed_data; |
| 228 | |
| 229 | /* Initalize */ |
| 230 | tx_state = |
| 231 | v42bis_init(ctx, NULL, P0, P1, P2, |
| 232 | &tx_v42bis_frame_handler, NULL, MAX_BLOCK_SIZE, |
| 233 | &tx_v42bis_data_handler, NULL, MAX_BLOCK_SIZE); |
| 234 | OSMO_ASSERT(tx_state); |
| 235 | rx_state = |
| 236 | v42bis_init(ctx, NULL, P0, P1, P2, |
| 237 | &rx_v42bis_frame_handler, NULL, MAX_BLOCK_SIZE, |
| 238 | &rx_v42bis_data_handler, NULL, MAX_BLOCK_SIZE); |
| 239 | OSMO_ASSERT(rx_state); |
| 240 | v42bis_compression_control(tx_state, mode); |
| 241 | |
| 242 | /* Setup input data */ |
| 243 | memcpy(uncompressed_original, testvec, len); |
| 244 | |
| 245 | /* Run compressor */ |
| 246 | compressed_data.buf = compressed; |
| 247 | compressed_data.buf_pointer = compressed; |
| 248 | compressed_data.len = 0; |
| 249 | tx_state->compress.user_data = (&compressed_data); |
| 250 | rc = v42bis_compress(tx_state, uncompressed_original, len); |
| 251 | printf("v42bis_compress() rc=%d\n", rc); |
| 252 | OSMO_ASSERT(rc == 0); |
| 253 | rc = v42bis_compress_flush(tx_state); |
| 254 | printf("v42bis_compress_flush() rc=%d\n", rc); |
| 255 | OSMO_ASSERT(rc == 0); |
| 256 | |
| 257 | /* Decompress again */ |
| 258 | uncompressed_data.buf = uncompressed; |
| 259 | uncompressed_data.buf_pointer = uncompressed; |
| 260 | uncompressed_data.len = 0; |
| 261 | rx_state->decompress.user_data = (&uncompressed_data); |
| 262 | rc = v42bis_decompress(rx_state, compressed_data.buf, |
| 263 | compressed_data.len); |
| 264 | printf("v42bis_decompress() rc=%d\n", rc); |
| 265 | rc = v42bis_decompress_flush(rx_state); |
| 266 | rc_sum += rc; |
| 267 | printf("v42bis_decompress_flush() rc=%d\n", rc); |
| 268 | rc_sum += rc; |
| 269 | |
| 270 | /* Check results */ |
| 271 | printf("Mode: %i\n", mode); |
| 272 | |
| 273 | printf("uncompressed_original= %s ASCII:", |
| 274 | osmo_hexdump_nospc(uncompressed_original, len)); |
| 275 | show_packet(uncompressed_original, len); |
| 276 | printf("uncompressed= %s ASCII:", |
| 277 | osmo_hexdump_nospc(uncompressed_data.buf, |
| 278 | uncompressed_data.len)); |
| 279 | show_packet(uncompressed_data.buf, uncompressed_data.len); |
| 280 | printf("compressed= %s ASCII:", |
| 281 | osmo_hexdump_nospc(compressed_data.buf, compressed_data.len)); |
| 282 | show_packet(compressed_data.buf, compressed_data.len); |
| 283 | |
| 284 | rc = memcmp(uncompressed, uncompressed_original, len); |
| 285 | printf("memcmp() rc=%d\n", rc); |
| 286 | rc_sum += rc; |
| 287 | OSMO_ASSERT(rc_sum == 0); |
| 288 | |
| 289 | /* Free buffers and exit */ |
| 290 | v42bis_free(tx_state); |
| 291 | v42bis_free(rx_state); |
| 292 | talloc_free(uncompressed_original); |
| 293 | talloc_free(compressed); |
| 294 | talloc_free(uncompressed); |
| 295 | printf("\n"); |
| 296 | } |
| 297 | |
| 298 | /* Test V.42bis compression and decompression with generated data*/ |
| 299 | static void test_v42bis(const void *ctx) |
| 300 | { |
| 301 | printf("Testing compression/decompression with generated data:\n"); |
| 302 | uint8_t testvec[1024]; |
| 303 | int len = sizeof(testvec); |
| 304 | gen_test_pattern(testvec, len); |
| 305 | v42bis(ctx, V42BIS_COMPRESSION_MODE_DYNAMIC, testvec, len); |
| 306 | v42bis(ctx, V42BIS_COMPRESSION_MODE_ALWAYS, testvec, len); |
| 307 | v42bis(ctx, V42BIS_COMPRESSION_MODE_NEVER, testvec, len); |
| 308 | } |
| 309 | |
| 310 | /* Test V.42bis compression and decompression with some TCP/IP packets */ |
| 311 | static void test_v42bis_tcpip(const void *ctx, int packet_id) |
| 312 | { |
| 313 | uint8_t *testvec; |
| 314 | int len; |
| 315 | printf |
| 316 | ("Testing compression/decompression with realistic TCP/IP packets:\n"); |
| 317 | printf("Packet No.: %i\n", packet_id); |
| 318 | len = strlen(uncompr_packets[packet_id]); |
| 319 | testvec = talloc_zero_size(ctx, len); |
| 320 | len = osmo_hexparse(uncompr_packets[packet_id], testvec, len); |
Philipp | ae9beda | 2016-09-28 15:10:14 +0200 | [diff] [blame] | 321 | OSMO_ASSERT(len > 0); |
Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 322 | v42bis(ctx, V42BIS_COMPRESSION_MODE_DYNAMIC, testvec, len); |
| 323 | v42bis(ctx, V42BIS_COMPRESSION_MODE_ALWAYS, testvec, len); |
| 324 | v42bis(ctx, V42BIS_COMPRESSION_MODE_NEVER, testvec, len); |
| 325 | talloc_free(testvec); |
| 326 | } |
| 327 | |
| 328 | /* Test V.42bis decompression with real, sniffed packets */ |
| 329 | static void test_v42bis_tcpip_decompress(const void *ctx, int packet_id) |
| 330 | { |
| 331 | uint8_t *compressed; |
| 332 | int compressed_len; |
| 333 | uint8_t *uncompressed; |
| 334 | v42bis_state_t *rx_state; |
| 335 | int rc; |
| 336 | int rc_sum = 0; |
| 337 | int len; |
| 338 | struct v42bis_output_buffer uncompressed_data; |
| 339 | |
| 340 | printf |
| 341 | ("Testing decompression with sniffed compressed TCP/IP packets:\n"); |
| 342 | printf("Packet No.: %i\n", packet_id); |
| 343 | len = strlen(compr_packets[packet_id]); |
| 344 | |
| 345 | uncompressed = talloc_zero_size(ctx, len); |
| 346 | compressed = talloc_zero_size(ctx, len); |
| 347 | |
| 348 | /* Initalize */ |
| 349 | rx_state = |
| 350 | v42bis_init(ctx, NULL, P0, P1, P2, |
| 351 | &rx_v42bis_frame_handler, NULL, MAX_BLOCK_SIZE, |
| 352 | &rx_v42bis_data_handler, NULL, MAX_BLOCK_SIZE); |
| 353 | OSMO_ASSERT(rx_state); |
| 354 | |
| 355 | /* Setup input data */ |
| 356 | compressed_len = |
| 357 | osmo_hexparse(compr_packets[packet_id], compressed, len); |
| 358 | |
| 359 | /* Decompress */ |
| 360 | uncompressed_data.buf = uncompressed; |
| 361 | uncompressed_data.buf_pointer = uncompressed; |
| 362 | uncompressed_data.len = 0; |
| 363 | rx_state->decompress.user_data = (&uncompressed_data); |
| 364 | rc = v42bis_decompress_flush(rx_state); |
| 365 | printf("v42bis_decompress_flush() rc=%d\n", rc); |
| 366 | rc_sum += rc; |
| 367 | rc = v42bis_decompress(rx_state, compressed, compressed_len); |
| 368 | printf("v42bis_decompress() rc=%d\n", rc); |
| 369 | rc_sum += rc; |
| 370 | rc = v42bis_decompress_flush(rx_state); |
| 371 | printf("v42bis_decompress_flush() rc=%d\n", rc); |
| 372 | rc_sum += rc; |
| 373 | |
| 374 | /* Check results */ |
| 375 | printf("compressed= %s ASCII:", |
| 376 | osmo_hexdump_nospc(compressed, compressed_len)); |
| 377 | show_packet(compressed, compressed_len); |
| 378 | printf("uncompressed= %s ASCII:", |
| 379 | osmo_hexdump_nospc(uncompressed_data.buf, |
| 380 | uncompressed_data.len)); |
| 381 | show_packet(uncompressed_data.buf, uncompressed_data.len); |
| 382 | |
| 383 | OSMO_ASSERT(calc_ip_csum(uncompressed_data.buf, 20) == 0); |
| 384 | OSMO_ASSERT(calc_tcpip_csum(ctx, uncompressed_data.buf, |
| 385 | uncompressed_data.len) == 0); |
| 386 | |
| 387 | /* Free buffers and exit */ |
| 388 | v42bis_free(rx_state); |
| 389 | talloc_free(uncompressed); |
| 390 | talloc_free(compressed); |
| 391 | printf("\n"); |
| 392 | } |
| 393 | |
| 394 | static struct log_info_cat gprs_categories[] = { |
| 395 | [DV42BIS] = { |
| 396 | .name = "DV42BIS", |
| 397 | .description = "V.42bis data compression (SNDCP)", |
| 398 | .enabled = 1,.loglevel = LOGL_DEBUG, |
| 399 | } |
| 400 | }; |
| 401 | |
| 402 | static struct log_info info = { |
| 403 | .cat = gprs_categories, |
| 404 | .num_cat = ARRAY_SIZE(gprs_categories), |
| 405 | }; |
| 406 | |
| 407 | int main(int argc, char **argv) |
| 408 | { |
| 409 | void *v42bis_ctx; |
Neels Hofmeyr | 5bd340e | 2018-04-16 00:57:10 +0200 | [diff] [blame^] | 410 | void *log_ctx; |
Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 411 | int i; |
| 412 | |
Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 413 | v42bis_ctx = talloc_named_const(NULL, 0, "v42bis_ctx"); |
Neels Hofmeyr | 5bd340e | 2018-04-16 00:57:10 +0200 | [diff] [blame^] | 414 | log_ctx = talloc_named_const(v42bis_ctx, 0, "log"); |
| 415 | osmo_init_logging2(log_ctx, &info); |
Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 416 | |
| 417 | test_v42bis(v42bis_ctx); |
| 418 | |
| 419 | for (i = 0; i < UNCOMPR_PACKETS_LEN; i++) |
| 420 | test_v42bis_tcpip(v42bis_ctx, i); |
| 421 | |
| 422 | for (i = 0; i < COMPR_PACKETS_LEN; i++) |
| 423 | test_v42bis_tcpip_decompress(v42bis_ctx, i); |
| 424 | |
| 425 | printf("Done\n"); |
| 426 | talloc_report_full(v42bis_ctx, stderr); |
Neels Hofmeyr | 5bd340e | 2018-04-16 00:57:10 +0200 | [diff] [blame^] | 427 | talloc_free(log_ctx); |
Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 428 | OSMO_ASSERT(talloc_total_blocks(v42bis_ctx) == 1); |
Neels Hofmeyr | 5bd340e | 2018-04-16 00:57:10 +0200 | [diff] [blame^] | 429 | talloc_free(v42bis_ctx); |
Philipp | d8b4577 | 2016-09-02 13:32:38 +0200 | [diff] [blame] | 430 | return 0; |
| 431 | } |
| 432 | |
| 433 | /* stubs */ |
| 434 | struct osmo_prim_hdr; |
| 435 | int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx) |
| 436 | { |
| 437 | abort(); |
| 438 | } |