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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35 #include <stdbool.h>
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38 #include <sys/time.h>
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41 #include <winsock2.h>
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42 #include <ws2tcpip.h>
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43 #include <windows.h>
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45 #include <sys/socket.h>
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46 #include <netinet/in.h>
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47 #include <arpa/inet.h>
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48 #include <sys/types.h>
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52 #include <ext4_filedev.h>
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57 static int winsock_init(void);
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58 static void winsock_fini(void);
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59 static char* entry_to_str(uint8_t type);
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61 #define MAX_FILES 64
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64 #define MAX_RW_BUFFER (1024 * 1024)
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65 #define RW_BUFFER_PATERN ('x')
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68 /**@brief Default connection port*/
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69 static int connection_port = 1234;
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71 /**@brief Default filesystem filename.*/
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72 static char *ext4_fname = "ext2";
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74 /**@brief Verbose mode*/
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75 static int verbose = 0;
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77 /**@brief Winpart mode*/
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78 static int winpart = 0;
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80 /**@brief Blockdev handle*/
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81 static struct ext4_blockdev *bd;
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83 static int cache_wb = 0;
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85 static char read_buffer[MAX_RW_BUFFER];
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86 static char write_buffer[MAX_RW_BUFFER];
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89 static const char *usage = " \n\
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90 Welcome in lwext4_server. \n\
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91 Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com) \n\
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93 --image (-i) - ext2/3/4 image file \n\
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94 --port (-p) - server port \n\
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95 --verbose (-v) - verbose mode \n\
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96 --winpart (-w) - windows_partition mode \n\
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97 --cache_wb (-c) - cache writeback_mode \n\
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102 /**@brief Open file instance descriptor.*/
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103 struct lwext4_files {
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108 /**@brief Open directory instance descriptor.*/
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109 struct lwext4_dirs {
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114 /**@brief Library call opcode.*/
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115 struct lwext4_op_codes {
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119 /**@brief Library call wraper.*/
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120 struct lwext4_call {
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121 int (*lwext4_call)(char *p);
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125 static struct lwext4_files file_tab[MAX_FILES];
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128 static struct lwext4_dirs dir_tab[MAX_DIRS];
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131 static struct lwext4_op_codes op_codes[] = {
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135 "mount_point_stats",
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136 "cache_write_back",
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161 int _device_register(char *p);
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162 int _mount(char *p);
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163 int _umount(char *p);
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164 int _mount_point_stats(char *p);
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165 int _cache_write_back(char *p);
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166 int _fremove(char *p);
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167 int _fopen(char *p);
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168 int _fclose(char *p);
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169 int _fread(char *p);
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170 int _fwrite(char *p);
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171 int _fseek(char *p);
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172 int _ftell(char *p);
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173 int _fsize(char *p);
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174 int _dir_rm(char *p);
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175 int _dir_mk(char *p);
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176 int _dir_open(char *p);
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177 int _dir_close(char *p);
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178 int _dir_close(char *p);
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179 int _dir_entry_get(char *p);
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181 int _multi_fcreate(char *p);
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182 int _multi_fwrite(char *p);
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183 int _multi_fread(char *p);
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184 int _multi_fremove(char *p);
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185 int _multi_dcreate(char *p);
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186 int _multi_dremove(char *p);
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187 int _stats_save(char *p);
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188 int _stats_check(char *p);
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191 static struct lwext4_call op_call[] = {
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192 _device_register, /*PARAMS(3): 0 cache_mode dev_name */
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193 _mount, /*PARAMS(2): dev_name mount_point */
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194 _umount, /*PARAMS(1): mount_point */
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195 _mount_point_stats,/*PARAMS(2): mount_point, 0 */
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196 _cache_write_back, /*PARAMS(2): mount_point, en */
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197 _fremove, /*PARAMS(1): path */
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198 _fopen, /*PARAMS(2): fid path flags */
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199 _fclose, /*PARAMS(1): fid */
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200 _fread, /*PARAMS(4): fid 0 len 0 */
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201 _fwrite, /*PARAMS(4): fid 0 len 0 */
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202 _fseek, /*PARAMS(2): fid off origin */
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203 _ftell, /*PARAMS(2): fid exp */
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204 _fsize, /*PARAMS(2): fid exp */
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205 _dir_rm, /*PARAMS(1): path */
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206 _dir_mk, /*PARAMS(1): path */
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207 _dir_open, /*PARAMS(2): did, path */
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208 _dir_close, /*PARAMS(1): did */
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209 _dir_entry_get, /*PARAMS(2): did, exp */
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211 _multi_fcreate, /*PARAMS(3): path prefix cnt */
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212 _multi_fwrite, /*PARAMS(4): path prefix cnt size */
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213 _multi_fread, /*PARAMS(4): path prefix cnt size */
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214 _multi_fremove, /*PARAMS(2): path prefix cnt */
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215 _multi_dcreate, /*PARAMS(3): path prefix cnt */
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216 _multi_dremove, /*PARAMS(2): path prefix */
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217 _stats_save, /*PARAMS(1): path */
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218 _stats_check, /*PARAMS(1): path */
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221 static clock_t get_ms(void)
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224 gettimeofday(&t, NULL);
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225 return (t.tv_sec * 1000) + (t.tv_usec / 1000);
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229 static int exec_op_code(char *opcode)
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234 for (i = 0; i < sizeof(op_codes) / sizeof(op_codes[0]); ++i) {
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236 if(strncmp(op_codes[i].func, opcode, strlen(op_codes[i].func)))
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239 if(opcode[strlen(op_codes[i].func)] != ' ')
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242 printf("%s\n", opcode);
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243 opcode += strlen(op_codes[i].func);
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246 clock_t t = get_ms();
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247 r = op_call[i].lwext4_call(opcode);
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249 printf("rc: %d, time: %ums\n", r, (unsigned int)(get_ms() - t));
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258 static int server_open(void)
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261 struct sockaddr_in serv_addr;
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263 memset(&serv_addr, 0, sizeof(serv_addr));
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265 if(winsock_init() < 0) {
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266 printf("winsock_init() error\n");
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270 fd = socket(AF_INET, SOCK_STREAM, 0);
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272 printf("socket() error: %s\n", strerror(errno));
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277 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&yes, sizeof(int))) {
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278 printf("setsockopt() error: %s\n", strerror(errno));
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282 serv_addr.sin_family = AF_INET;
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283 serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
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284 serv_addr.sin_port = htons(connection_port);
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286 if(bind(fd, (struct sockaddr*)&serv_addr, sizeof(serv_addr))){
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287 printf("bind() error: %s\n", strerror(errno));
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292 printf("listen() error: %s\n", strerror(errno));
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299 static bool parse_opt(int argc, char **argv)
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301 int option_index = 0;
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304 static struct option long_options[] = {
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305 {"image", required_argument, 0, 'i'},
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306 {"port", required_argument, 0, 'p'},
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307 {"verbose", required_argument, 0, 'v'},
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308 {"winpart", required_argument, 0, 'w'},
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309 {"cache_wb",required_argument, 0, 'c'},
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313 while(-1 != (c = getopt_long (argc, argv, "c:i:p:v:w:", long_options, &option_index))) {
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317 ext4_fname = optarg;
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320 connection_port = atoi(optarg);
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323 verbose = atoi(optarg);
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326 cache_wb = atoi(optarg);
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329 winpart = atoi(optarg);
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332 printf("%s", usage);
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340 int main(int argc, char *argv[])
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347 if(!parse_opt(argc, argv))
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350 listenfd = server_open();
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352 printf("lwext4_server: listening on port: %d\n", connection_port);
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354 memset(write_buffer, RW_BUFFER_PATERN, MAX_RW_BUFFER);
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357 connfd = accept(listenfd, (struct sockaddr*)NULL, NULL);
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359 n = recv(connfd, op_code, sizeof(op_code), 0);
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362 printf("recv() error: %s fd = %d\n", strerror(errno), connfd);
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368 int r = exec_op_code(op_code);
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370 n = send(connfd, (void *)&r, sizeof(r), 0);
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372 printf("send() error: %s fd = %d\n", strerror(errno), connfd);
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384 int _device_register(char *p)
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390 if(sscanf(p, "%d %d %s", &dev, &cache_mode, dev_name) != 3){
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391 printf("Param list error\n");
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397 ext4_io_raw_filename(ext4_fname);
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398 bd = ext4_io_raw_dev_get();
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404 ext4_filedev_filename(ext4_fname);
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405 bd = ext4_filedev_get();
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407 return ext4_device_register(bd, 0, dev_name);
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410 int _mount(char *p)
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413 char mount_point[32];
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416 if(sscanf(p, "%s %s", dev_name, mount_point) != 2){
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417 printf("Param list error\n");
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421 rc = ext4_mount(dev_name, mount_point);
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423 ext4_cache_write_back(mount_point, 1);
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427 int _umount(char *p)
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429 char mount_point[32];
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431 if(sscanf(p, "%s", mount_point) != 1){
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432 printf("Param list error\n");
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437 ext4_cache_write_back(mount_point, 0);
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439 return ext4_umount(mount_point);
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442 int _mount_point_stats(char *p)
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444 char mount_point[32];
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447 struct ext4_mount_stats stats;
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449 if(sscanf(p, "%s %d", mount_point, &d) != 2){
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450 printf("Param list error\n");
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454 rc = ext4_mount_point_stats(mount_point, &stats);
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460 printf("\tinodes_count = %d\n", stats.inodes_count);
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461 printf("\tfree_inodes_count = %d\n", stats.free_inodes_count);
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462 printf("\tblocks_count = %llu\n", stats.blocks_count);
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463 printf("\tfree_blocks_count = %llu\n", stats.free_blocks_count);
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465 printf("\tblock_size = %d\n", stats.block_size);
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466 printf("\tblock_group_count = %d\n", stats.block_group_count);
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467 printf("\tblocks_per_group = %d\n", stats.blocks_per_group);
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468 printf("\tinodes_per_group = %d\n", stats.inodes_per_group);
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470 printf("\tvolume_name = %s\n", stats.volume_name);
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476 int _cache_write_back(char *p)
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478 char mount_point[32];
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481 if(sscanf(p, "%s %d", mount_point, &en) != 2){
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482 printf("Param list error\n");
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486 return ext4_cache_write_back(mount_point, en);
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490 int _fremove(char *p)
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494 if(sscanf(p, "%s", path) != 1){
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495 printf("Param list error\n");
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499 return ext4_fremove(path);
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502 int _fopen(char *p)
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504 int fid = MAX_FILES;
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509 if(sscanf(p, "%d %s %s", &fid, path, flags) != 3){
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510 printf("Param list error\n");
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514 if(!(fid < MAX_FILES)){
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515 printf("File id too big\n");
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519 rc = ext4_fopen(&file_tab[fid].fd, path, flags);
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522 strcpy(file_tab[fid].name, path);
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527 int _fclose(char *p)
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529 int fid = MAX_FILES;
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532 if(sscanf(p, "%d", &fid) != 1){
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533 printf("Param list error\n");
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537 if(!(fid < MAX_FILES)){
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538 printf("File id too big\n");
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542 if(file_tab[fid].name[0] == 0){
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543 printf("File id empty\n");
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547 rc = ext4_fclose(&file_tab[fid].fd);
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550 file_tab[fid].name[0] = 0;
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555 int _fread(char *p)
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557 int fid = MAX_FILES;
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563 if(sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4){
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564 printf("Param list error\n");
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568 if(!(fid < MAX_FILES)){
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569 printf("File id too big\n");
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573 if(file_tab[fid].name[0] == 0){
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574 printf("File id empty\n");
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579 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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581 memset(read_buffer, 0, MAX_RW_BUFFER);
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582 rc = ext4_fread(&file_tab[fid].fd, read_buffer, d, &rb);
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588 printf("Read count error\n");
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592 if(memcmp(read_buffer, write_buffer, d)){
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593 printf("Read compare error\n");
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603 int _fwrite(char *p)
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605 int fid = MAX_FILES;
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611 if(sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4){
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612 printf("Param list error\n");
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616 if(!(fid < MAX_FILES)){
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617 printf("File id too big\n");
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621 if(file_tab[fid].name[0] == 0){
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622 printf("File id empty\n");
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627 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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628 rc = ext4_fwrite(&file_tab[fid].fd, write_buffer, d, &wb);
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634 printf("Write count error\n");
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644 int _fseek(char *p)
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646 int fid = MAX_FILES;
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650 if(sscanf(p, "%d %d %d", &fid, &off, &origin) != 3){
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651 printf("Param list error\n");
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655 if(!(fid < MAX_FILES)){
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656 printf("File id too big\n");
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660 if(file_tab[fid].name[0] == 0){
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661 printf("File id empty\n");
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665 return ext4_fseek(&file_tab[fid].fd, off, origin);
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668 int _ftell(char *p)
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670 int fid = MAX_FILES;
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673 if(sscanf(p, "%d %u", &fid, &exp_pos) != 2){
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674 printf("Param list error\n");
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678 if(!(fid < MAX_FILES)){
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679 printf("File id too big\n");
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683 if(file_tab[fid].name[0] == 0){
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684 printf("File id empty\n");
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689 if(exp_pos != ext4_ftell(&file_tab[fid].fd)){
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690 printf("Expected filepos error\n");
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697 int _fsize(char *p)
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699 int fid = MAX_FILES;
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702 if(sscanf(p, "%d %u", &fid, &exp_size) != 2){
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703 printf("Param list error\n");
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707 if(!(fid < MAX_FILES)){
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708 printf("File id too big\n");
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712 if(file_tab[fid].name[0] == 0){
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713 printf("File id empty\n");
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717 if(exp_size != ext4_fsize(&file_tab[fid].fd)){
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718 printf("Expected filesize error\n");
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725 int _dir_rm(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_rm(path);
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737 int _dir_mk(char *p)
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741 if(sscanf(p, "%s", path) != 1){
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742 printf("Param list error\n");
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746 return ext4_dir_mk(path);
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749 int _dir_open(char *p)
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751 int did = MAX_DIRS;
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755 if(sscanf(p, "%d %s", &did, path) != 2){
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756 printf("Param list error\n");
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760 if(!(did < MAX_DIRS)){
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761 printf("Dir id too big\n");
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765 rc = ext4_dir_open(&dir_tab[did].fd, path);
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768 strcpy(dir_tab[did].name, path);
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773 int _dir_close(char *p)
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775 int did = MAX_DIRS;
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778 if(sscanf(p, "%d", &did) != 1){
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779 printf("Param list error\n");
\r
783 if(!(did < MAX_DIRS)){
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784 printf("Dir id too big\n");
\r
788 if(dir_tab[did].name[0] == 0){
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789 printf("Dir id empty\n");
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793 rc = ext4_dir_close(&dir_tab[did].fd);
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796 dir_tab[did].name[0] = 0;
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801 int _dir_entry_get(char *p)
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803 int did = MAX_DIRS;
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807 if(sscanf(p, "%d %d", &did, &exp) != 2){
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808 printf("Param list error\n");
\r
812 if(!(did < MAX_DIRS)){
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813 printf("Dir id too big\n");
\r
817 if(dir_tab[did].name[0] == 0){
\r
818 printf("Dir id empty\n");
\r
826 while(d = ext4_dir_entry_get(&dir_tab[did].fd, idx++)){
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828 memcpy(name, d->name, d->name_length);
\r
829 name[d->name_length] = 0;
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831 printf("\t%s %s\n", entry_to_str(d->inode_type), name);
\r
838 printf("Minumum dir entry error\n");
\r
842 if((idx - 2) != exp){
\r
843 printf("Expected dir entry error\n");
\r
850 int _multi_fcreate(char *p)
\r
860 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
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861 printf("Param list error\n");
\r
865 for (i = 0; i < cnt; ++i) {
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866 sprintf(path1, "%s%s%d", path, prefix, i);
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867 rc = ext4_fopen(&fd, path1, "wb+");
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876 int _multi_fwrite(char *p)
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887 if(sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4){
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888 printf("Param list error\n");
\r
892 for (i = 0; i < cnt; ++i) {
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893 sprintf(path1, "%s%s%d", path, prefix, i);
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894 rc = ext4_fopen(&fd, path1, "rb+");
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901 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
\r
902 rc = ext4_fwrite(&fd, write_buffer, d, &wb);
\r
908 printf("Write count error\n");
\r
919 int _multi_fread(char *p)
\r
930 if(sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4){
\r
931 printf("Param list error\n");
\r
935 for (i = 0; i < cnt; ++i) {
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936 sprintf(path1, "%s%s%d", path, prefix, i);
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937 rc = ext4_fopen(&fd, path1, "rb+");
\r
944 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
\r
946 memset(read_buffer, 0, MAX_RW_BUFFER);
\r
947 rc = ext4_fread(&fd, read_buffer, d, &rb);
\r
953 printf("Read count error\n");
\r
957 if(memcmp(read_buffer, write_buffer, d)){
\r
958 printf("Read compare error\n");
\r
969 int _multi_fremove(char *p)
\r
976 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
\r
977 printf("Param list error\n");
\r
981 for (i = 0; i < cnt; ++i) {
\r
982 sprintf(path1, "%s%s%d", path, prefix, i);
\r
983 rc = ext4_fremove(path1);
\r
991 int _multi_dcreate(char *p)
\r
998 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
\r
999 printf("Param list error\n");
\r
1003 for (i = 0; i < cnt; ++i) {
\r
1004 sprintf(path1, "%s%s%d", path, prefix, i);
\r
1005 rc = ext4_dir_mk(path1);
\r
1013 int _multi_dremove(char *p)
\r
1020 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
\r
1021 printf("Param list error\n");
\r
1025 for (i = 0; i < cnt; ++i) {
\r
1026 sprintf(path1, "%s%s%d", path, prefix, i);
\r
1027 rc = ext4_dir_rm(path1);
\r
1035 struct ext4_mount_stats saved_stats;
\r
1037 int _stats_save(char *p)
\r
1041 if(sscanf(p, "%s", path) != 1){
\r
1042 printf("Param list error\n");
\r
1046 return ext4_mount_point_stats(path, &saved_stats);
\r
1049 int _stats_check(char *p)
\r
1054 struct ext4_mount_stats actual_stats;
\r
1056 if(sscanf(p, "%s", path) != 1){
\r
1057 printf("Param list error\n");
\r
1061 rc = ext4_mount_point_stats(path, &actual_stats);
\r
1066 if(memcmp(&saved_stats, &actual_stats, sizeof(struct ext4_mount_stats))){
\r
1068 printf("\tMount point stats error:\n");
\r
1069 printf("\tsaved_stats:\n");
\r
1070 printf("\tinodes_count = %d\n", saved_stats.inodes_count);
\r
1071 printf("\tfree_inodes_count = %d\n", saved_stats.free_inodes_count);
\r
1072 printf("\tblocks_count = %llu\n", saved_stats.blocks_count);
\r
1073 printf("\tfree_blocks_count = %llu\n", saved_stats.free_blocks_count);
\r
1074 printf("\tblock_size = %d\n", saved_stats.block_size);
\r
1075 printf("\tblock_group_count = %d\n", saved_stats.block_group_count);
\r
1076 printf("\tblocks_per_group = %d\n", saved_stats.blocks_per_group);
\r
1077 printf("\tinodes_per_group = %d\n", saved_stats.inodes_per_group);
\r
1078 printf("\tvolume_name = %s\n", saved_stats.volume_name);
\r
1079 printf("\tactual_stats:\n");
\r
1080 printf("\tinodes_count = %d\n", actual_stats.inodes_count);
\r
1081 printf("\tfree_inodes_count = %d\n", actual_stats.free_inodes_count);
\r
1082 printf("\tblocks_count = %llu\n", actual_stats.blocks_count);
\r
1083 printf("\tfree_blocks_count = %llu\n", actual_stats.free_blocks_count);
\r
1084 printf("\tblock_size = %d\n", actual_stats.block_size);
\r
1085 printf("\tblock_group_count = %d\n", actual_stats.block_group_count);
\r
1086 printf("\tblocks_per_group = %d\n", actual_stats.blocks_per_group);
\r
1087 printf("\tinodes_per_group = %d\n", actual_stats.inodes_per_group);
\r
1088 printf("\tvolume_name = %s\n", actual_stats.volume_name);
\r
1098 static char* entry_to_str(uint8_t type)
\r
1101 case EXT4_DIRENTRY_UNKNOWN:
\r
1103 case EXT4_DIRENTRY_REG_FILE:
\r
1105 case EXT4_DIRENTRY_DIR:
\r
1107 case EXT4_DIRENTRY_CHRDEV:
\r
1109 case EXT4_DIRENTRY_BLKDEV:
\r
1111 case EXT4_DIRENTRY_FIFO:
\r
1113 case EXT4_DIRENTRY_SOCK:
\r
1115 case EXT4_DIRENTRY_SYMLINK:
\r
1123 static int winsock_init(void)
\r
1127 static WSADATA wsaData;
\r
1128 rc = WSAStartup(MAKEWORD(2,2), &wsaData);
\r
1136 static void winsock_fini(void)
\r