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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98 struct lwext4_files {
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103 /**@brief Open directory instance descriptor.*/
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104 struct lwext4_dirs {
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109 /**@brief Library call opcode.*/
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110 struct lwext4_op_codes {
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114 /**@brief Library call wraper.*/
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115 struct lwext4_call {
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116 int (*lwext4_call)(char *p);
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120 static struct lwext4_files file_tab[MAX_FILES];
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123 static struct lwext4_dirs dir_tab[MAX_DIRS];
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126 static struct lwext4_op_codes op_codes[] = {
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130 "mount_point_stats",
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131 "cache_write_back",
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156 int _device_register(char *p);
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157 int _mount(char *p);
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158 int _umount(char *p);
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159 int _mount_point_stats(char *p);
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160 int _cache_write_back(char *p);
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161 int _fremove(char *p);
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162 int _fopen(char *p);
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163 int _fclose(char *p);
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164 int _fread(char *p);
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165 int _fwrite(char *p);
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166 int _fseek(char *p);
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167 int _ftell(char *p);
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168 int _fsize(char *p);
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169 int _dir_rm(char *p);
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170 int _dir_mk(char *p);
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171 int _dir_open(char *p);
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172 int _dir_close(char *p);
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173 int _dir_close(char *p);
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174 int _dir_entry_get(char *p);
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176 int _multi_fcreate(char *p);
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177 int _multi_fwrite(char *p);
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178 int _multi_fread(char *p);
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179 int _multi_fremove(char *p);
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180 int _multi_dcreate(char *p);
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181 int _multi_dremove(char *p);
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182 int _stats_save(char *p);
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183 int _stats_check(char *p);
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186 static struct lwext4_call op_call[] = {
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187 _device_register, /*PARAMS(3): 0 cache_mode dev_name */
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188 _mount, /*PARAMS(2): dev_name mount_point */
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189 _umount, /*PARAMS(1): mount_point */
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190 _mount_point_stats, /*PARAMS(2): mount_point, 0 */
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191 _cache_write_back, /*PARAMS(2): mount_point, en */
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192 _fremove, /*PARAMS(1): path */
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193 _fopen, /*PARAMS(2): fid path flags */
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194 _fclose, /*PARAMS(1): fid */
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195 _fread, /*PARAMS(4): fid 0 len 0 */
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196 _fwrite, /*PARAMS(4): fid 0 len 0 */
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197 _fseek, /*PARAMS(2): fid off origin */
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198 _ftell, /*PARAMS(2): fid exp */
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199 _fsize, /*PARAMS(2): fid exp */
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200 _dir_rm, /*PARAMS(1): path */
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201 _dir_mk, /*PARAMS(1): path */
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202 _dir_open, /*PARAMS(2): did, path */
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203 _dir_close, /*PARAMS(1): did */
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204 _dir_entry_get, /*PARAMS(2): did, exp */
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206 _multi_fcreate, /*PARAMS(3): path prefix cnt */
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207 _multi_fwrite, /*PARAMS(4): path prefix cnt size */
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208 _multi_fread, /*PARAMS(4): path prefix cnt size */
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209 _multi_fremove, /*PARAMS(2): path prefix cnt */
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210 _multi_dcreate, /*PARAMS(3): path prefix cnt */
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211 _multi_dremove, /*PARAMS(2): path prefix */
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212 _stats_save, /*PARAMS(1): path */
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213 _stats_check, /*PARAMS(1): path */
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216 static clock_t get_ms(void)
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219 gettimeofday(&t, NULL);
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220 return (t.tv_sec * 1000) + (t.tv_usec / 1000);
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224 static int exec_op_code(char *opcode)
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229 for (i = 0; i < sizeof(op_codes) / sizeof(op_codes[0]); ++i) {
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231 if (strncmp(op_codes[i].func, opcode, strlen(op_codes[i].func)))
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234 if (opcode[strlen(op_codes[i].func)] != ' ')
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237 printf("%s\n", opcode);
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238 opcode += strlen(op_codes[i].func);
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241 clock_t t = get_ms();
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242 r = op_call[i].lwext4_call(opcode);
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244 printf("rc: %d, time: %ums\n", r, (unsigned int)(get_ms() - t));
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252 static int server_open(void)
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255 struct sockaddr_in serv_addr;
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257 memset(&serv_addr, 0, sizeof(serv_addr));
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259 if (winsock_init() < 0) {
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260 printf("winsock_init() error\n");
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264 fd = socket(AF_INET, SOCK_STREAM, 0);
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266 printf("socket() error: %s\n", strerror(errno));
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271 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&yes, sizeof(int))) {
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272 printf("setsockopt() error: %s\n", strerror(errno));
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276 serv_addr.sin_family = AF_INET;
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277 serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
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278 serv_addr.sin_port = htons(connection_port);
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280 if (bind(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr))) {
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281 printf("bind() error: %s\n", strerror(errno));
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285 if (listen(fd, 1)) {
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286 printf("listen() error: %s\n", strerror(errno));
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293 static bool parse_opt(int argc, char **argv)
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295 int option_index = 0;
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298 static struct option long_options[] = {
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299 {"image", required_argument, 0, 'i'},
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300 {"port", required_argument, 0, 'p'},
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301 {"verbose", required_argument, 0, 'v'},
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302 {"winpart", required_argument, 0, 'w'},
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303 {"cache_wb", required_argument, 0, 'c'},
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306 while (-1 != (c = getopt_long(argc, argv, "c:i:p:v:w:", long_options,
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311 ext4_fname = optarg;
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314 connection_port = atoi(optarg);
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317 verbose = atoi(optarg);
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320 cache_wb = atoi(optarg);
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323 winpart = atoi(optarg);
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326 printf("%s", usage);
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333 int main(int argc, char *argv[])
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340 if (!parse_opt(argc, argv))
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343 listenfd = server_open();
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345 printf("lwext4_server: listening on port: %d\n", connection_port);
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347 memset(write_buffer, RW_BUFFER_PATERN, MAX_RW_BUFFER);
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349 connfd = accept(listenfd, (struct sockaddr *)NULL, NULL);
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351 n = recv(connfd, op_code, sizeof(op_code), 0);
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354 printf("recv() error: %s fd = %d\n", strerror(errno), connfd);
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360 int r = exec_op_code(op_code);
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362 n = send(connfd, (void *)&r, sizeof(r), 0);
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364 printf("send() error: %s fd = %d\n", strerror(errno), connfd);
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375 int _device_register(char *p)
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381 if (sscanf(p, "%d %d %s", &dev, &cache_mode, dev_name) != 3) {
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382 printf("Param list error\n");
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388 ext4_io_raw_filename(ext4_fname);
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389 bd = ext4_io_raw_dev_get();
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394 ext4_filedev_filename(ext4_fname);
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395 bd = ext4_filedev_get();
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397 return ext4_device_register(bd, 0, dev_name);
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400 int _mount(char *p)
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403 char mount_point[32];
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406 if (sscanf(p, "%s %s", dev_name, mount_point) != 2) {
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407 printf("Param list error\n");
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411 rc = ext4_mount(dev_name, mount_point);
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413 ext4_cache_write_back(mount_point, 1);
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417 int _umount(char *p)
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419 char mount_point[32];
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421 if (sscanf(p, "%s", mount_point) != 1) {
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422 printf("Param list error\n");
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427 ext4_cache_write_back(mount_point, 0);
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429 return ext4_umount(mount_point);
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432 int _mount_point_stats(char *p)
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434 char mount_point[32];
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437 struct ext4_mount_stats stats;
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439 if (sscanf(p, "%s %d", mount_point, &d) != 2) {
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440 printf("Param list error\n");
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444 rc = ext4_mount_point_stats(mount_point, &stats);
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450 printf("\tinodes_count = %d\n", stats.inodes_count);
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451 printf("\tfree_inodes_count = %d\n", stats.free_inodes_count);
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452 printf("\tblocks_count = %llu\n", stats.blocks_count);
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453 printf("\tfree_blocks_count = %llu\n", stats.free_blocks_count);
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455 printf("\tblock_size = %d\n", stats.block_size);
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456 printf("\tblock_group_count = %d\n", stats.block_group_count);
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457 printf("\tblocks_per_group = %d\n", stats.blocks_per_group);
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458 printf("\tinodes_per_group = %d\n", stats.inodes_per_group);
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460 printf("\tvolume_name = %s\n", stats.volume_name);
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466 int _cache_write_back(char *p)
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468 char mount_point[32];
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471 if (sscanf(p, "%s %d", mount_point, &en) != 2) {
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472 printf("Param list error\n");
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476 return ext4_cache_write_back(mount_point, en);
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479 int _fremove(char *p)
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483 if (sscanf(p, "%s", path) != 1) {
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484 printf("Param list error\n");
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488 return ext4_fremove(path);
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491 int _fopen(char *p)
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493 int fid = MAX_FILES;
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498 if (sscanf(p, "%d %s %s", &fid, path, flags) != 3) {
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499 printf("Param list error\n");
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503 if (!(fid < MAX_FILES)) {
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504 printf("File id too big\n");
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508 rc = ext4_fopen(&file_tab[fid].fd, path, flags);
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511 strcpy(file_tab[fid].name, path);
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516 int _fclose(char *p)
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518 int fid = MAX_FILES;
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521 if (sscanf(p, "%d", &fid) != 1) {
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522 printf("Param list error\n");
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526 if (!(fid < MAX_FILES)) {
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527 printf("File id too big\n");
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531 if (file_tab[fid].name[0] == 0) {
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532 printf("File id empty\n");
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536 rc = ext4_fclose(&file_tab[fid].fd);
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539 file_tab[fid].name[0] = 0;
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544 int _fread(char *p)
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546 int fid = MAX_FILES;
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552 if (sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4) {
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553 printf("Param list error\n");
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557 if (!(fid < MAX_FILES)) {
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558 printf("File id too big\n");
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562 if (file_tab[fid].name[0] == 0) {
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563 printf("File id empty\n");
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568 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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570 memset(read_buffer, 0, MAX_RW_BUFFER);
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571 rc = ext4_fread(&file_tab[fid].fd, read_buffer, d, &rb);
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577 printf("Read count error\n");
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581 if (memcmp(read_buffer, write_buffer, d)) {
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582 printf("Read compare error\n");
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592 int _fwrite(char *p)
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594 int fid = MAX_FILES;
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600 if (sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4) {
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601 printf("Param list error\n");
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605 if (!(fid < MAX_FILES)) {
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606 printf("File id too big\n");
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610 if (file_tab[fid].name[0] == 0) {
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611 printf("File id empty\n");
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616 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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617 rc = ext4_fwrite(&file_tab[fid].fd, write_buffer, d, &wb);
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623 printf("Write count error\n");
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633 int _fseek(char *p)
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635 int fid = MAX_FILES;
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639 if (sscanf(p, "%d %d %d", &fid, &off, &origin) != 3) {
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640 printf("Param list error\n");
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644 if (!(fid < MAX_FILES)) {
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645 printf("File id too big\n");
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649 if (file_tab[fid].name[0] == 0) {
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650 printf("File id empty\n");
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654 return ext4_fseek(&file_tab[fid].fd, off, origin);
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657 int _ftell(char *p)
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659 int fid = MAX_FILES;
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662 if (sscanf(p, "%d %u", &fid, &exp_pos) != 2) {
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663 printf("Param list error\n");
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667 if (!(fid < MAX_FILES)) {
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668 printf("File id too big\n");
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672 if (file_tab[fid].name[0] == 0) {
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673 printf("File id empty\n");
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677 if (exp_pos != ext4_ftell(&file_tab[fid].fd)) {
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678 printf("Expected filepos error\n");
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685 int _fsize(char *p)
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687 int fid = MAX_FILES;
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690 if (sscanf(p, "%d %u", &fid, &exp_size) != 2) {
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691 printf("Param list error\n");
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695 if (!(fid < MAX_FILES)) {
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696 printf("File id too big\n");
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700 if (file_tab[fid].name[0] == 0) {
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701 printf("File id empty\n");
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705 if (exp_size != ext4_fsize(&file_tab[fid].fd)) {
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706 printf("Expected filesize error\n");
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713 int _dir_rm(char *p)
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717 if (sscanf(p, "%s", path) != 1) {
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718 printf("Param list error\n");
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722 return ext4_dir_rm(path);
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725 int _dir_mk(char *p)
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729 if (sscanf(p, "%s", path) != 1) {
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730 printf("Param list error\n");
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734 return ext4_dir_mk(path);
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737 int _dir_open(char *p)
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739 int did = MAX_DIRS;
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743 if (sscanf(p, "%d %s", &did, path) != 2) {
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744 printf("Param list error\n");
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748 if (!(did < MAX_DIRS)) {
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749 printf("Dir id too big\n");
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753 rc = ext4_dir_open(&dir_tab[did].fd, path);
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756 strcpy(dir_tab[did].name, path);
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761 int _dir_close(char *p)
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763 int did = MAX_DIRS;
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766 if (sscanf(p, "%d", &did) != 1) {
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767 printf("Param list error\n");
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771 if (!(did < MAX_DIRS)) {
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772 printf("Dir id too big\n");
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776 if (dir_tab[did].name[0] == 0) {
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777 printf("Dir id empty\n");
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781 rc = ext4_dir_close(&dir_tab[did].fd);
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784 dir_tab[did].name[0] = 0;
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789 int _dir_entry_get(char *p)
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791 int did = MAX_DIRS;
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795 if (sscanf(p, "%d %d", &did, &exp) != 2) {
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796 printf("Param list error\n");
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800 if (!(did < MAX_DIRS)) {
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801 printf("Dir id too big\n");
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805 if (dir_tab[did].name[0] == 0) {
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806 printf("Dir id empty\n");
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811 const ext4_direntry *d;
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813 while ((d = ext4_dir_entry_next(&dir_tab[did].fd)) != NULL) {
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816 memcpy(name, d->name, d->name_length);
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817 name[d->name_length] = 0;
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819 printf("\t%s %s\n", entry_to_str(d->inode_type), name);
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824 printf("Minumum dir entry error\n");
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828 if ((idx - 2) != exp) {
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829 printf("Expected dir entry error\n");
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836 int _multi_fcreate(char *p)
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846 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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847 printf("Param list error\n");
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851 for (i = 0; i < cnt; ++i) {
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852 sprintf(path1, "%s%s%d", path, prefix, i);
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853 rc = ext4_fopen(&fd, path1, "wb+");
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862 int _multi_fwrite(char *p)
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873 if (sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4) {
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874 printf("Param list error\n");
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878 for (i = 0; i < cnt; ++i) {
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879 sprintf(path1, "%s%s%d", path, prefix, i);
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880 rc = ext4_fopen(&fd, path1, "rb+");
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887 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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888 rc = ext4_fwrite(&fd, write_buffer, d, &wb);
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894 printf("Write count error\n");
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905 int _multi_fread(char *p)
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916 if (sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4) {
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917 printf("Param list error\n");
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921 for (i = 0; i < cnt; ++i) {
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922 sprintf(path1, "%s%s%d", path, prefix, i);
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923 rc = ext4_fopen(&fd, path1, "rb+");
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930 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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932 memset(read_buffer, 0, MAX_RW_BUFFER);
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933 rc = ext4_fread(&fd, read_buffer, d, &rb);
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939 printf("Read count error\n");
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943 if (memcmp(read_buffer, write_buffer, d)) {
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944 printf("Read compare error\n");
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955 int _multi_fremove(char *p)
\r
962 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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963 printf("Param list error\n");
\r
967 for (i = 0; i < cnt; ++i) {
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968 sprintf(path1, "%s%s%d", path, prefix, i);
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969 rc = ext4_fremove(path1);
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977 int _multi_dcreate(char *p)
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984 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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985 printf("Param list error\n");
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989 for (i = 0; i < cnt; ++i) {
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990 sprintf(path1, "%s%s%d", path, prefix, i);
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991 rc = ext4_dir_mk(path1);
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999 int _multi_dremove(char *p)
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1006 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
\r
1007 printf("Param list error\n");
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1011 for (i = 0; i < cnt; ++i) {
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1012 sprintf(path1, "%s%s%d", path, prefix, i);
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1013 rc = ext4_dir_rm(path1);
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1021 struct ext4_mount_stats saved_stats;
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1023 int _stats_save(char *p)
\r
1027 if (sscanf(p, "%s", path) != 1) {
\r
1028 printf("Param list error\n");
\r
1032 return ext4_mount_point_stats(path, &saved_stats);
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1035 int _stats_check(char *p)
\r
1040 struct ext4_mount_stats actual_stats;
\r
1042 if (sscanf(p, "%s", path) != 1) {
\r
1043 printf("Param list error\n");
\r
1047 rc = ext4_mount_point_stats(path, &actual_stats);
\r
1052 if (memcmp(&saved_stats, &actual_stats, sizeof(struct ext4_mount_stats))) {
\r
1054 printf("\tMount point stats error:\n");
\r
1055 printf("\tsaved_stats:\n");
\r
1056 printf("\tinodes_count = %d\n", saved_stats.inodes_count);
\r
1057 printf("\tfree_inodes_count = %d\n", saved_stats.free_inodes_count);
\r
1058 printf("\tblocks_count = %llu\n", saved_stats.blocks_count);
\r
1059 printf("\tfree_blocks_count = %llu\n",
\r
1060 saved_stats.free_blocks_count);
\r
1061 printf("\tblock_size = %d\n", saved_stats.block_size);
\r
1062 printf("\tblock_group_count = %d\n", saved_stats.block_group_count);
\r
1063 printf("\tblocks_per_group = %d\n", saved_stats.blocks_per_group);
\r
1064 printf("\tinodes_per_group = %d\n", saved_stats.inodes_per_group);
\r
1065 printf("\tvolume_name = %s\n", saved_stats.volume_name);
\r
1066 printf("\tactual_stats:\n");
\r
1067 printf("\tinodes_count = %d\n", actual_stats.inodes_count);
\r
1068 printf("\tfree_inodes_count = %d\n",
\r
1069 actual_stats.free_inodes_count);
\r
1070 printf("\tblocks_count = %llu\n", actual_stats.blocks_count);
\r
1071 printf("\tfree_blocks_count = %llu\n",
\r
1072 actual_stats.free_blocks_count);
\r
1073 printf("\tblock_size = %d\n", actual_stats.block_size);
\r
1074 printf("\tblock_group_count = %d\n",
\r
1075 actual_stats.block_group_count);
\r
1076 printf("\tblocks_per_group = %d\n", actual_stats.blocks_per_group);
\r
1077 printf("\tinodes_per_group = %d\n", actual_stats.inodes_per_group);
\r
1078 printf("\tvolume_name = %s\n", actual_stats.volume_name);
\r
1086 static char *entry_to_str(uint8_t type)
\r
1089 case EXT4_DIRENTRY_UNKNOWN:
\r
1091 case EXT4_DIRENTRY_REG_FILE:
\r
1093 case EXT4_DIRENTRY_DIR:
\r
1095 case EXT4_DIRENTRY_CHRDEV:
\r
1097 case EXT4_DIRENTRY_BLKDEV:
\r
1099 case EXT4_DIRENTRY_FIFO:
\r
1101 case EXT4_DIRENTRY_SOCK:
\r
1103 case EXT4_DIRENTRY_SYMLINK:
\r
1111 static int winsock_init(void)
\r
1115 static WSADATA wsaData;
\r
1116 rc = WSAStartup(MAKEWORD(2, 2), &wsaData);
\r
1124 static void winsock_fini(void)
\r