2 * Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
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3 * All rights reserved.
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions
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9 * - Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 * - Redistributions in binary form must reproduce the above copyright
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12 * notice, this list of conditions and the following disclaimer in the
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13 * documentation and/or other materials provided with the distribution.
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14 * - The name of the author may not be used to endorse or promote products
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15 * derived from this software without specific prior written permission.
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17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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34 #include <stdbool.h>
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37 #include <sys/time.h>
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40 #include <winsock2.h>
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41 #include <ws2tcpip.h>
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42 #include <windows.h>
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44 #include <sys/socket.h>
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45 #include <netinet/in.h>
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46 #include <arpa/inet.h>
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47 #include <sys/types.h>
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50 #include <ext4_filedev.h>
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56 static int winsock_init(void);
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57 static void winsock_fini(void);
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58 static char *entry_to_str(uint8_t type);
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60 #define MAX_FILES 64
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63 #define MAX_RW_BUFFER (1024 * 1024)
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64 #define RW_BUFFER_PATERN ('x')
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66 /**@brief Default connection port*/
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67 static int connection_port = 1234;
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69 /**@brief Default filesystem filename.*/
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70 static char *ext4_fname = "ext2";
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72 /**@brief Verbose mode*/
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73 static int verbose = 0;
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75 /**@brief Winpart mode*/
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76 static int winpart = 0;
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78 /**@brief Blockdev handle*/
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79 static struct ext4_blockdev *bd;
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81 static int cache_wb = 0;
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83 static char read_buffer[MAX_RW_BUFFER];
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84 static char write_buffer[MAX_RW_BUFFER];
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86 static const char *usage = " \n\
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87 Welcome in lwext4_server. \n\
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88 Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com) \n\
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90 --image (-i) - ext2/3/4 image file \n\
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91 --port (-p) - server port \n\
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92 --verbose (-v) - verbose mode \n\
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93 --winpart (-w) - windows_partition mode \n\
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94 --cache_wb (-c) - cache writeback_mode \n\
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97 /**@brief Open file instance descriptor.*/
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104 /**@brief Open directory instance descriptor.*/
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111 /**@brief Library call opcode.*/
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112 struct lwext4_op_codes
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117 /**@brief Library call wraper.*/
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120 int (*lwext4_call)(char *p);
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124 static struct lwext4_files file_tab[MAX_FILES];
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127 static struct lwext4_dirs dir_tab[MAX_DIRS];
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130 static struct lwext4_op_codes op_codes[] = {
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131 "device_register", "mount", "umount", "mount_point_stats",
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132 "cache_write_back", "fremove", "fopen", "fclose",
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133 "fread", "fwrite", "fseek", "ftell",
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134 "fsize", "dir_rm", "dir_mk", "dir_open",
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135 "dir_close", "dir_entry_get",
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137 "multi_fcreate", "multi_fwrite", "multi_fread", "multi_fremove",
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138 "multi_dcreate", "multi_dremove", "stats_save", "stats_check",
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141 int _device_register(char *p);
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142 int _mount(char *p);
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143 int _umount(char *p);
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144 int _mount_point_stats(char *p);
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145 int _cache_write_back(char *p);
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146 int _fremove(char *p);
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147 int _fopen(char *p);
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148 int _fclose(char *p);
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149 int _fread(char *p);
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150 int _fwrite(char *p);
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151 int _fseek(char *p);
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152 int _ftell(char *p);
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153 int _fsize(char *p);
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154 int _dir_rm(char *p);
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155 int _dir_mk(char *p);
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156 int _dir_open(char *p);
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157 int _dir_close(char *p);
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158 int _dir_close(char *p);
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159 int _dir_entry_get(char *p);
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161 int _multi_fcreate(char *p);
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162 int _multi_fwrite(char *p);
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163 int _multi_fread(char *p);
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164 int _multi_fremove(char *p);
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165 int _multi_dcreate(char *p);
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166 int _multi_dremove(char *p);
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167 int _stats_save(char *p);
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168 int _stats_check(char *p);
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171 static struct lwext4_call op_call[] = {
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172 _device_register, /*PARAMS(3): 0 cache_mode dev_name */
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173 _mount, /*PARAMS(2): dev_name mount_point */
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174 _umount, /*PARAMS(1): mount_point */
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175 _mount_point_stats, /*PARAMS(2): mount_point, 0 */
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176 _cache_write_back, /*PARAMS(2): mount_point, en */
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177 _fremove, /*PARAMS(1): path */
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178 _fopen, /*PARAMS(2): fid path flags */
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179 _fclose, /*PARAMS(1): fid */
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180 _fread, /*PARAMS(4): fid 0 len 0 */
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181 _fwrite, /*PARAMS(4): fid 0 len 0 */
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182 _fseek, /*PARAMS(2): fid off origin */
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183 _ftell, /*PARAMS(2): fid exp */
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184 _fsize, /*PARAMS(2): fid exp */
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185 _dir_rm, /*PARAMS(1): path */
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186 _dir_mk, /*PARAMS(1): path */
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187 _dir_open, /*PARAMS(2): did, path */
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188 _dir_close, /*PARAMS(1): did */
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189 _dir_entry_get, /*PARAMS(2): did, exp */
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191 _multi_fcreate, /*PARAMS(3): path prefix cnt */
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192 _multi_fwrite, /*PARAMS(4): path prefix cnt size */
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193 _multi_fread, /*PARAMS(4): path prefix cnt size */
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194 _multi_fremove, /*PARAMS(2): path prefix cnt */
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195 _multi_dcreate, /*PARAMS(3): path prefix cnt */
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196 _multi_dremove, /*PARAMS(2): path prefix */
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197 _stats_save, /*PARAMS(1): path */
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198 _stats_check, /*PARAMS(1): path */
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201 static clock_t get_ms(void)
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204 gettimeofday(&t, NULL);
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205 return (t.tv_sec * 1000) + (t.tv_usec / 1000);
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209 static int exec_op_code(char *opcode)
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214 for (i = 0; i < sizeof(op_codes) / sizeof(op_codes[0]); ++i) {
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216 if (strncmp(op_codes[i].func, opcode, strlen(op_codes[i].func)))
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219 if (opcode[strlen(op_codes[i].func)] != ' ')
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222 printf("%s\n", opcode);
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223 opcode += strlen(op_codes[i].func);
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226 clock_t t = get_ms();
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227 r = op_call[i].lwext4_call(opcode);
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229 printf("rc: %d, time: %ums\n", r, (unsigned int)(get_ms() - t));
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237 static int server_open(void)
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240 struct sockaddr_in serv_addr;
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242 memset(&serv_addr, 0, sizeof(serv_addr));
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244 if (winsock_init() < 0) {
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245 printf("winsock_init() error\n");
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249 fd = socket(AF_INET, SOCK_STREAM, 0);
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251 printf("socket() error: %s\n", strerror(errno));
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256 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&yes, sizeof(int))) {
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257 printf("setsockopt() error: %s\n", strerror(errno));
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261 serv_addr.sin_family = AF_INET;
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262 serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
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263 serv_addr.sin_port = htons(connection_port);
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265 if (bind(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr))) {
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266 printf("bind() error: %s\n", strerror(errno));
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270 if (listen(fd, 1)) {
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271 printf("listen() error: %s\n", strerror(errno));
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278 static bool parse_opt(int argc, char **argv)
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280 int option_index = 0;
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283 static struct option long_options[] = {
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284 {"image", required_argument, 0, 'i'},
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285 {"port", required_argument, 0, 'p'},
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286 {"verbose", required_argument, 0, 'v'},
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287 {"winpart", required_argument, 0, 'w'},
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288 {"cache_wb", required_argument, 0, 'c'},
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291 while (-1 != (c = getopt_long(argc, argv, "c:i:p:v:w:", long_options,
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296 ext4_fname = optarg;
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299 connection_port = atoi(optarg);
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302 verbose = atoi(optarg);
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305 cache_wb = atoi(optarg);
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308 winpart = atoi(optarg);
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311 printf("%s", usage);
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318 int main(int argc, char *argv[])
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325 if (!parse_opt(argc, argv))
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328 listenfd = server_open();
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330 printf("lwext4_server: listening on port: %d\n", connection_port);
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332 memset(write_buffer, RW_BUFFER_PATERN, MAX_RW_BUFFER);
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334 connfd = accept(listenfd, (struct sockaddr *)NULL, NULL);
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336 n = recv(connfd, op_code, sizeof(op_code), 0);
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339 printf("recv() error: %s fd = %d\n", strerror(errno), connfd);
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345 int r = exec_op_code(op_code);
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347 n = send(connfd, (void *)&r, sizeof(r), 0);
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349 printf("send() error: %s fd = %d\n", strerror(errno), connfd);
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360 int _device_register(char *p)
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366 if (sscanf(p, "%d %d %s", &dev, &cache_mode, dev_name) != 3) {
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367 printf("Param list error\n");
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373 ext4_io_raw_filename(ext4_fname);
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374 bd = ext4_io_raw_dev_get();
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379 ext4_filedev_filename(ext4_fname);
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380 bd = ext4_filedev_get();
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382 return ext4_device_register(bd, 0, dev_name);
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385 int _mount(char *p)
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388 char mount_point[32];
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391 if (sscanf(p, "%s %s", dev_name, mount_point) != 2) {
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392 printf("Param list error\n");
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396 rc = ext4_mount(dev_name, mount_point);
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398 ext4_cache_write_back(mount_point, 1);
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402 int _umount(char *p)
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404 char mount_point[32];
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406 if (sscanf(p, "%s", mount_point) != 1) {
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407 printf("Param list error\n");
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412 ext4_cache_write_back(mount_point, 0);
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414 return ext4_umount(mount_point);
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417 int _mount_point_stats(char *p)
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419 char mount_point[32];
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422 struct ext4_mount_stats stats;
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424 if (sscanf(p, "%s %d", mount_point, &d) != 2) {
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425 printf("Param list error\n");
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429 rc = ext4_mount_point_stats(mount_point, &stats);
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435 printf("\tinodes_count = %d\n", stats.inodes_count);
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436 printf("\tfree_inodes_count = %d\n", stats.free_inodes_count);
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437 printf("\tblocks_count = %llu\n", stats.blocks_count);
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438 printf("\tfree_blocks_count = %llu\n", stats.free_blocks_count);
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440 printf("\tblock_size = %d\n", stats.block_size);
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441 printf("\tblock_group_count = %d\n", stats.block_group_count);
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442 printf("\tblocks_per_group = %d\n", stats.blocks_per_group);
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443 printf("\tinodes_per_group = %d\n", stats.inodes_per_group);
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445 printf("\tvolume_name = %s\n", stats.volume_name);
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451 int _cache_write_back(char *p)
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453 char mount_point[32];
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456 if (sscanf(p, "%s %d", mount_point, &en) != 2) {
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457 printf("Param list error\n");
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461 return ext4_cache_write_back(mount_point, en);
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464 int _fremove(char *p)
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468 if (sscanf(p, "%s", path) != 1) {
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469 printf("Param list error\n");
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473 return ext4_fremove(path);
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476 int _fopen(char *p)
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478 int fid = MAX_FILES;
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483 if (sscanf(p, "%d %s %s", &fid, path, flags) != 3) {
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484 printf("Param list error\n");
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488 if (!(fid < MAX_FILES)) {
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489 printf("File id too big\n");
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493 rc = ext4_fopen(&file_tab[fid].fd, path, flags);
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496 strcpy(file_tab[fid].name, path);
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501 int _fclose(char *p)
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503 int fid = MAX_FILES;
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506 if (sscanf(p, "%d", &fid) != 1) {
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507 printf("Param list error\n");
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511 if (!(fid < MAX_FILES)) {
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512 printf("File id too big\n");
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516 if (file_tab[fid].name[0] == 0) {
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517 printf("File id empty\n");
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521 rc = ext4_fclose(&file_tab[fid].fd);
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524 file_tab[fid].name[0] = 0;
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529 int _fread(char *p)
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531 int fid = MAX_FILES;
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537 if (sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4) {
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538 printf("Param list error\n");
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542 if (!(fid < MAX_FILES)) {
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543 printf("File id too big\n");
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547 if (file_tab[fid].name[0] == 0) {
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548 printf("File id empty\n");
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553 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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555 memset(read_buffer, 0, MAX_RW_BUFFER);
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556 rc = ext4_fread(&file_tab[fid].fd, read_buffer, d, &rb);
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562 printf("Read count error\n");
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566 if (memcmp(read_buffer, write_buffer, d)) {
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567 printf("Read compare error\n");
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577 int _fwrite(char *p)
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579 int fid = MAX_FILES;
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585 if (sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4) {
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586 printf("Param list error\n");
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590 if (!(fid < MAX_FILES)) {
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591 printf("File id too big\n");
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595 if (file_tab[fid].name[0] == 0) {
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596 printf("File id empty\n");
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601 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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602 rc = ext4_fwrite(&file_tab[fid].fd, write_buffer, d, &wb);
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608 printf("Write count error\n");
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618 int _fseek(char *p)
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620 int fid = MAX_FILES;
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624 if (sscanf(p, "%d %d %d", &fid, &off, &origin) != 3) {
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625 printf("Param list error\n");
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629 if (!(fid < MAX_FILES)) {
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630 printf("File id too big\n");
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634 if (file_tab[fid].name[0] == 0) {
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635 printf("File id empty\n");
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639 return ext4_fseek(&file_tab[fid].fd, off, origin);
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642 int _ftell(char *p)
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644 int fid = MAX_FILES;
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647 if (sscanf(p, "%d %u", &fid, &exp_pos) != 2) {
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648 printf("Param list error\n");
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652 if (!(fid < MAX_FILES)) {
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653 printf("File id too big\n");
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657 if (file_tab[fid].name[0] == 0) {
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658 printf("File id empty\n");
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662 if (exp_pos != ext4_ftell(&file_tab[fid].fd)) {
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663 printf("Expected filepos error\n");
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670 int _fsize(char *p)
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672 int fid = MAX_FILES;
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675 if (sscanf(p, "%d %u", &fid, &exp_size) != 2) {
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676 printf("Param list error\n");
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680 if (!(fid < MAX_FILES)) {
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681 printf("File id too big\n");
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685 if (file_tab[fid].name[0] == 0) {
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686 printf("File id empty\n");
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690 if (exp_size != ext4_fsize(&file_tab[fid].fd)) {
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691 printf("Expected filesize error\n");
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698 int _dir_rm(char *p)
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702 if (sscanf(p, "%s", path) != 1) {
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703 printf("Param list error\n");
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707 return ext4_dir_rm(path);
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710 int _dir_mk(char *p)
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714 if (sscanf(p, "%s", path) != 1) {
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715 printf("Param list error\n");
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719 return ext4_dir_mk(path);
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722 int _dir_open(char *p)
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724 int did = MAX_DIRS;
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728 if (sscanf(p, "%d %s", &did, path) != 2) {
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729 printf("Param list error\n");
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733 if (!(did < MAX_DIRS)) {
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734 printf("Dir id too big\n");
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738 rc = ext4_dir_open(&dir_tab[did].fd, path);
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741 strcpy(dir_tab[did].name, path);
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746 int _dir_close(char *p)
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748 int did = MAX_DIRS;
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751 if (sscanf(p, "%d", &did) != 1) {
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752 printf("Param list error\n");
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756 if (!(did < MAX_DIRS)) {
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757 printf("Dir id too big\n");
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761 if (dir_tab[did].name[0] == 0) {
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762 printf("Dir id empty\n");
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766 rc = ext4_dir_close(&dir_tab[did].fd);
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769 dir_tab[did].name[0] = 0;
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774 int _dir_entry_get(char *p)
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776 int did = MAX_DIRS;
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780 if (sscanf(p, "%d %d", &did, &exp) != 2) {
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781 printf("Param list error\n");
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785 if (!(did < MAX_DIRS)) {
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786 printf("Dir id too big\n");
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790 if (dir_tab[did].name[0] == 0) {
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791 printf("Dir id empty\n");
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798 while (d = ext4_dir_entry_next(&dir_tab[did].fd)) {
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801 memcpy(name, d->name, d->name_length);
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802 name[d->name_length] = 0;
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804 printf("\t%s %s\n", entry_to_str(d->inode_type), name);
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809 printf("Minumum dir entry error\n");
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813 if ((idx - 2) != exp) {
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814 printf("Expected dir entry error\n");
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821 int _multi_fcreate(char *p)
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831 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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832 printf("Param list error\n");
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836 for (i = 0; i < cnt; ++i) {
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837 sprintf(path1, "%s%s%d", path, prefix, i);
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838 rc = ext4_fopen(&fd, path1, "wb+");
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847 int _multi_fwrite(char *p)
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858 if (sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4) {
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859 printf("Param list error\n");
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863 for (i = 0; i < cnt; ++i) {
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864 sprintf(path1, "%s%s%d", path, prefix, i);
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865 rc = ext4_fopen(&fd, path1, "rb+");
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872 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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873 rc = ext4_fwrite(&fd, write_buffer, d, &wb);
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879 printf("Write count error\n");
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890 int _multi_fread(char *p)
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901 if (sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4) {
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902 printf("Param list error\n");
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906 for (i = 0; i < cnt; ++i) {
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907 sprintf(path1, "%s%s%d", path, prefix, i);
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908 rc = ext4_fopen(&fd, path1, "rb+");
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915 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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917 memset(read_buffer, 0, MAX_RW_BUFFER);
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918 rc = ext4_fread(&fd, read_buffer, d, &rb);
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924 printf("Read count error\n");
\r
928 if (memcmp(read_buffer, write_buffer, d)) {
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929 printf("Read compare error\n");
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940 int _multi_fremove(char *p)
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947 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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948 printf("Param list error\n");
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952 for (i = 0; i < cnt; ++i) {
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953 sprintf(path1, "%s%s%d", path, prefix, i);
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954 rc = ext4_fremove(path1);
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962 int _multi_dcreate(char *p)
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969 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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970 printf("Param list error\n");
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974 for (i = 0; i < cnt; ++i) {
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975 sprintf(path1, "%s%s%d", path, prefix, i);
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976 rc = ext4_dir_mk(path1);
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984 int _multi_dremove(char *p)
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991 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
\r
992 printf("Param list error\n");
\r
996 for (i = 0; i < cnt; ++i) {
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997 sprintf(path1, "%s%s%d", path, prefix, i);
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998 rc = ext4_dir_rm(path1);
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1006 struct ext4_mount_stats saved_stats;
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1008 int _stats_save(char *p)
\r
1012 if (sscanf(p, "%s", path) != 1) {
\r
1013 printf("Param list error\n");
\r
1017 return ext4_mount_point_stats(path, &saved_stats);
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1020 int _stats_check(char *p)
\r
1025 struct ext4_mount_stats actual_stats;
\r
1027 if (sscanf(p, "%s", path) != 1) {
\r
1028 printf("Param list error\n");
\r
1032 rc = ext4_mount_point_stats(path, &actual_stats);
\r
1037 if (memcmp(&saved_stats, &actual_stats, sizeof(struct ext4_mount_stats))) {
\r
1039 printf("\tMount point stats error:\n");
\r
1040 printf("\tsaved_stats:\n");
\r
1041 printf("\tinodes_count = %d\n", saved_stats.inodes_count);
\r
1042 printf("\tfree_inodes_count = %d\n", saved_stats.free_inodes_count);
\r
1043 printf("\tblocks_count = %llu\n", saved_stats.blocks_count);
\r
1044 printf("\tfree_blocks_count = %llu\n",
\r
1045 saved_stats.free_blocks_count);
\r
1046 printf("\tblock_size = %d\n", saved_stats.block_size);
\r
1047 printf("\tblock_group_count = %d\n", saved_stats.block_group_count);
\r
1048 printf("\tblocks_per_group = %d\n", saved_stats.blocks_per_group);
\r
1049 printf("\tinodes_per_group = %d\n", saved_stats.inodes_per_group);
\r
1050 printf("\tvolume_name = %s\n", saved_stats.volume_name);
\r
1051 printf("\tactual_stats:\n");
\r
1052 printf("\tinodes_count = %d\n", actual_stats.inodes_count);
\r
1053 printf("\tfree_inodes_count = %d\n",
\r
1054 actual_stats.free_inodes_count);
\r
1055 printf("\tblocks_count = %llu\n", actual_stats.blocks_count);
\r
1056 printf("\tfree_blocks_count = %llu\n",
\r
1057 actual_stats.free_blocks_count);
\r
1058 printf("\tblock_size = %d\n", actual_stats.block_size);
\r
1059 printf("\tblock_group_count = %d\n",
\r
1060 actual_stats.block_group_count);
\r
1061 printf("\tblocks_per_group = %d\n", actual_stats.blocks_per_group);
\r
1062 printf("\tinodes_per_group = %d\n", actual_stats.inodes_per_group);
\r
1063 printf("\tvolume_name = %s\n", actual_stats.volume_name);
\r
1071 static char *entry_to_str(uint8_t type)
\r
1074 case EXT4_DIRENTRY_UNKNOWN:
\r
1076 case EXT4_DIRENTRY_REG_FILE:
\r
1078 case EXT4_DIRENTRY_DIR:
\r
1080 case EXT4_DIRENTRY_CHRDEV:
\r
1082 case EXT4_DIRENTRY_BLKDEV:
\r
1084 case EXT4_DIRENTRY_FIFO:
\r
1086 case EXT4_DIRENTRY_SOCK:
\r
1088 case EXT4_DIRENTRY_SYMLINK:
\r
1096 static int winsock_init(void)
\r
1100 static WSADATA wsaData;
\r
1101 rc = WSAStartup(MAKEWORD(2, 2), &wsaData);
\r
1109 static void winsock_fini(void)
\r