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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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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51 #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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67 /**@brief Default connection port*/
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68 static int connection_port = 1234;
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70 /**@brief Default filesystem filename.*/
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71 static char *ext4_fname = "ext2";
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73 /**@brief Verbose mode*/
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74 static int verbose = 0;
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76 /**@brief Winpart mode*/
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77 static int winpart = 0;
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79 /**@brief Blockdev handle*/
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80 static struct ext4_blockdev *bd;
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82 static int cache_wb = 0;
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84 static char read_buffer[MAX_RW_BUFFER];
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85 static char write_buffer[MAX_RW_BUFFER];
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88 static const char *usage = " \n\
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89 Welcome in lwext4_server. \n\
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90 Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com) \n\
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92 --image (-i) - ext2/3/4 image file \n\
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93 --port (-p) - server port \n\
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94 --verbose (-v) - verbose mode \n\
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95 --winpart (-w) - windows_partition mode \n\
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96 --cache_wb (-c) - cache writeback_mode \n\
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101 /**@brief Open file instance descriptor.*/
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102 struct lwext4_files {
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107 /**@brief Open directory instance descriptor.*/
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108 struct lwext4_dirs {
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113 /**@brief Library call opcode.*/
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114 struct lwext4_op_codes {
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118 /**@brief Library call wraper.*/
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119 struct lwext4_call {
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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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134 "mount_point_stats",
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135 "cache_write_back",
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160 int _device_register(char *p);
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161 int _mount(char *p);
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162 int _umount(char *p);
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163 int _mount_point_stats(char *p);
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164 int _cache_write_back(char *p);
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165 int _fremove(char *p);
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166 int _fopen(char *p);
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167 int _fclose(char *p);
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168 int _fread(char *p);
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169 int _fwrite(char *p);
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170 int _fseek(char *p);
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171 int _ftell(char *p);
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172 int _fsize(char *p);
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173 int _dir_rm(char *p);
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174 int _dir_mk(char *p);
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175 int _dir_open(char *p);
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176 int _dir_close(char *p);
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177 int _dir_close(char *p);
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178 int _dir_entry_get(char *p);
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180 int _multi_fcreate(char *p);
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181 int _multi_fwrite(char *p);
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182 int _multi_fread(char *p);
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183 int _multi_fremove(char *p);
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184 int _multi_dcreate(char *p);
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185 int _multi_dremove(char *p);
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186 int _stats_save(char *p);
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187 int _stats_check(char *p);
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190 static struct lwext4_call op_call[] = {
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191 _device_register, /*PARAMS(3): 0 cache_mode dev_name */
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192 _mount, /*PARAMS(2): dev_name mount_point */
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193 _umount, /*PARAMS(1): mount_point */
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194 _mount_point_stats,/*PARAMS(2): mount_point, 0 */
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195 _cache_write_back, /*PARAMS(2): mount_point, en */
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196 _fremove, /*PARAMS(1): path */
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197 _fopen, /*PARAMS(2): fid path flags */
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198 _fclose, /*PARAMS(1): fid */
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199 _fread, /*PARAMS(4): fid 0 len 0 */
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200 _fwrite, /*PARAMS(4): fid 0 len 0 */
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201 _fseek, /*PARAMS(2): fid off origin */
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202 _ftell, /*PARAMS(2): fid exp */
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203 _fsize, /*PARAMS(2): fid exp */
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204 _dir_rm, /*PARAMS(1): path */
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205 _dir_mk, /*PARAMS(1): path */
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206 _dir_open, /*PARAMS(2): did, path */
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207 _dir_close, /*PARAMS(1): did */
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208 _dir_entry_get, /*PARAMS(2): did, exp */
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210 _multi_fcreate, /*PARAMS(3): path prefix cnt */
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211 _multi_fwrite, /*PARAMS(4): path prefix cnt size */
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212 _multi_fread, /*PARAMS(4): path prefix cnt size */
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213 _multi_fremove, /*PARAMS(2): path prefix cnt */
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214 _multi_dcreate, /*PARAMS(3): path prefix cnt */
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215 _multi_dremove, /*PARAMS(2): path prefix */
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216 _stats_save, /*PARAMS(1): path */
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217 _stats_check, /*PARAMS(1): path */
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220 static clock_t get_ms(void)
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223 gettimeofday(&t, NULL);
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224 return (t.tv_sec * 1000) + (t.tv_usec / 1000);
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228 static int exec_op_code(char *opcode)
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233 for (i = 0; i < sizeof(op_codes) / sizeof(op_codes[0]); ++i) {
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235 if(strncmp(op_codes[i].func, opcode, strlen(op_codes[i].func)))
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238 if(opcode[strlen(op_codes[i].func)] != ' ')
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241 printf("%s\n", opcode);
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242 opcode += strlen(op_codes[i].func);
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245 clock_t t = get_ms();
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246 r = op_call[i].lwext4_call(opcode);
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248 printf("rc: %d, time: %ums\n", r, (unsigned int)(get_ms() - t));
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257 static int server_open(void)
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260 struct sockaddr_in serv_addr;
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262 memset(&serv_addr, 0, sizeof(serv_addr));
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264 if(winsock_init() < 0) {
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265 printf("winsock_init() error\n");
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269 fd = socket(AF_INET, SOCK_STREAM, 0);
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271 printf("socket() error: %s\n", strerror(errno));
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276 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&yes, sizeof(int))) {
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277 printf("setsockopt() error: %s\n", strerror(errno));
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281 serv_addr.sin_family = AF_INET;
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282 serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
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283 serv_addr.sin_port = htons(connection_port);
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285 if(bind(fd, (struct sockaddr*)&serv_addr, sizeof(serv_addr))){
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286 printf("bind() error: %s\n", strerror(errno));
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291 printf("listen() error: %s\n", strerror(errno));
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298 static bool parse_opt(int argc, char **argv)
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300 int option_index = 0;
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303 static struct option long_options[] = {
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304 {"image", required_argument, 0, 'i'},
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305 {"port", required_argument, 0, 'p'},
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306 {"verbose", required_argument, 0, 'v'},
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307 {"winpart", required_argument, 0, 'w'},
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308 {"cache_wb",required_argument, 0, 'c'},
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312 while(-1 != (c = getopt_long (argc, argv, "c:i:p:v:w:", long_options, &option_index))) {
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316 ext4_fname = optarg;
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319 connection_port = atoi(optarg);
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322 verbose = atoi(optarg);
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325 cache_wb = atoi(optarg);
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328 winpart = atoi(optarg);
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331 printf("%s", usage);
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339 int main(int argc, char *argv[])
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346 if(!parse_opt(argc, argv))
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349 listenfd = server_open();
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351 printf("lwext4_server: listening on port: %d\n", connection_port);
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353 memset(write_buffer, RW_BUFFER_PATERN, MAX_RW_BUFFER);
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356 connfd = accept(listenfd, (struct sockaddr*)NULL, NULL);
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358 n = recv(connfd, op_code, sizeof(op_code), 0);
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361 printf("recv() error: %s fd = %d\n", strerror(errno), connfd);
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367 int r = exec_op_code(op_code);
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369 n = send(connfd, (void *)&r, sizeof(r), 0);
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371 printf("send() error: %s fd = %d\n", strerror(errno), connfd);
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383 int _device_register(char *p)
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389 if(sscanf(p, "%d %d %s", &dev, &cache_mode, dev_name) != 3){
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390 printf("Param list error\n");
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396 ext4_io_raw_filename(ext4_fname);
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397 bd = ext4_io_raw_dev_get();
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403 ext4_filedev_filename(ext4_fname);
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404 bd = ext4_filedev_get();
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406 return ext4_device_register(bd, 0, dev_name);
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409 int _mount(char *p)
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412 char mount_point[32];
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415 if(sscanf(p, "%s %s", dev_name, mount_point) != 2){
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416 printf("Param list error\n");
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420 rc = ext4_mount(dev_name, mount_point);
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422 ext4_cache_write_back(mount_point, 1);
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426 int _umount(char *p)
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428 char mount_point[32];
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430 if(sscanf(p, "%s", mount_point) != 1){
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431 printf("Param list error\n");
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436 ext4_cache_write_back(mount_point, 0);
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438 return ext4_umount(mount_point);
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441 int _mount_point_stats(char *p)
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443 char mount_point[32];
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446 struct ext4_mount_stats stats;
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448 if(sscanf(p, "%s %d", mount_point, &d) != 2){
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449 printf("Param list error\n");
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453 rc = ext4_mount_point_stats(mount_point, &stats);
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459 printf("\tinodes_count = %d\n", stats.inodes_count);
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460 printf("\tfree_inodes_count = %d\n", stats.free_inodes_count);
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461 printf("\tblocks_count = %llu\n", stats.blocks_count);
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462 printf("\tfree_blocks_count = %llu\n", stats.free_blocks_count);
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464 printf("\tblock_size = %d\n", stats.block_size);
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465 printf("\tblock_group_count = %d\n", stats.block_group_count);
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466 printf("\tblocks_per_group = %d\n", stats.blocks_per_group);
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467 printf("\tinodes_per_group = %d\n", stats.inodes_per_group);
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469 printf("\tvolume_name = %s\n", stats.volume_name);
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475 int _cache_write_back(char *p)
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477 char mount_point[32];
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480 if(sscanf(p, "%s %d", mount_point, &en) != 2){
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481 printf("Param list error\n");
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485 return ext4_cache_write_back(mount_point, en);
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489 int _fremove(char *p)
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493 if(sscanf(p, "%s", path) != 1){
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494 printf("Param list error\n");
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498 return ext4_fremove(path);
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501 int _fopen(char *p)
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503 int fid = MAX_FILES;
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508 if(sscanf(p, "%d %s %s", &fid, path, flags) != 3){
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509 printf("Param list error\n");
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513 if(!(fid < MAX_FILES)){
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514 printf("File id too big\n");
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518 rc = ext4_fopen(&file_tab[fid].fd, path, flags);
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521 strcpy(file_tab[fid].name, path);
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526 int _fclose(char *p)
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528 int fid = MAX_FILES;
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531 if(sscanf(p, "%d", &fid) != 1){
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532 printf("Param list error\n");
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536 if(!(fid < MAX_FILES)){
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537 printf("File id too big\n");
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541 if(file_tab[fid].name[0] == 0){
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542 printf("File id empty\n");
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546 rc = ext4_fclose(&file_tab[fid].fd);
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549 file_tab[fid].name[0] = 0;
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554 int _fread(char *p)
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556 int fid = MAX_FILES;
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562 if(sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4){
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563 printf("Param list error\n");
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567 if(!(fid < MAX_FILES)){
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568 printf("File id too big\n");
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572 if(file_tab[fid].name[0] == 0){
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573 printf("File id empty\n");
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578 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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580 memset(read_buffer, 0, MAX_RW_BUFFER);
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581 rc = ext4_fread(&file_tab[fid].fd, read_buffer, d, &rb);
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587 printf("Read count error\n");
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591 if(memcmp(read_buffer, write_buffer, d)){
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592 printf("Read compare error\n");
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602 int _fwrite(char *p)
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604 int fid = MAX_FILES;
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610 if(sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4){
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611 printf("Param list error\n");
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615 if(!(fid < MAX_FILES)){
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616 printf("File id too big\n");
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620 if(file_tab[fid].name[0] == 0){
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621 printf("File id empty\n");
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626 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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627 rc = ext4_fwrite(&file_tab[fid].fd, write_buffer, d, &wb);
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633 printf("Write count error\n");
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643 int _fseek(char *p)
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645 int fid = MAX_FILES;
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649 if(sscanf(p, "%d %d %d", &fid, &off, &origin) != 3){
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650 printf("Param list error\n");
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654 if(!(fid < MAX_FILES)){
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655 printf("File id too big\n");
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659 if(file_tab[fid].name[0] == 0){
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660 printf("File id empty\n");
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664 return ext4_fseek(&file_tab[fid].fd, off, origin);
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667 int _ftell(char *p)
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669 int fid = MAX_FILES;
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672 if(sscanf(p, "%d %u", &fid, &exp_pos) != 2){
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673 printf("Param list error\n");
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677 if(!(fid < MAX_FILES)){
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678 printf("File id too big\n");
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682 if(file_tab[fid].name[0] == 0){
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683 printf("File id empty\n");
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688 if(exp_pos != ext4_ftell(&file_tab[fid].fd)){
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689 printf("Expected filepos error\n");
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696 int _fsize(char *p)
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698 int fid = MAX_FILES;
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701 if(sscanf(p, "%d %u", &fid, &exp_size) != 2){
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702 printf("Param list error\n");
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706 if(!(fid < MAX_FILES)){
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707 printf("File id too big\n");
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711 if(file_tab[fid].name[0] == 0){
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712 printf("File id empty\n");
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716 if(exp_size != ext4_fsize(&file_tab[fid].fd)){
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717 printf("Expected filesize error\n");
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724 int _dir_rm(char *p)
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728 if(sscanf(p, "%s", path) != 1){
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729 printf("Param list error\n");
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733 return ext4_dir_rm(path);
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736 int _dir_mk(char *p)
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740 if(sscanf(p, "%s", path) != 1){
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741 printf("Param list error\n");
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745 return ext4_dir_mk(path);
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748 int _dir_open(char *p)
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750 int did = MAX_DIRS;
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754 if(sscanf(p, "%d %s", &did, path) != 2){
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755 printf("Param list error\n");
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759 if(!(did < MAX_DIRS)){
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760 printf("Dir id too big\n");
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764 rc = ext4_dir_open(&dir_tab[did].fd, path);
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767 strcpy(dir_tab[did].name, path);
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772 int _dir_close(char *p)
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774 int did = MAX_DIRS;
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777 if(sscanf(p, "%d", &did) != 1){
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778 printf("Param list error\n");
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782 if(!(did < MAX_DIRS)){
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783 printf("Dir id too big\n");
\r
787 if(dir_tab[did].name[0] == 0){
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788 printf("Dir id empty\n");
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792 rc = ext4_dir_close(&dir_tab[did].fd);
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795 dir_tab[did].name[0] = 0;
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800 int _dir_entry_get(char *p)
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802 int did = MAX_DIRS;
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806 if(sscanf(p, "%d %d", &did, &exp) != 2){
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807 printf("Param list error\n");
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811 if(!(did < MAX_DIRS)){
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812 printf("Dir id too big\n");
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816 if(dir_tab[did].name[0] == 0){
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817 printf("Dir id empty\n");
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825 while(d = ext4_dir_entry_get(&dir_tab[did].fd, idx++)){
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827 memcpy(name, d->name, d->name_length);
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828 name[d->name_length] = 0;
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830 printf("\t%s %s\n", entry_to_str(d->inode_type), name);
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837 printf("Minumum dir entry error\n");
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841 if((idx - 2) != exp){
\r
842 printf("Expected dir entry error\n");
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849 int _multi_fcreate(char *p)
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859 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
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860 printf("Param list error\n");
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864 for (i = 0; i < cnt; ++i) {
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865 sprintf(path1, "%s%s%d", path, prefix, i);
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866 rc = ext4_fopen(&fd, path1, "wb+");
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875 int _multi_fwrite(char *p)
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886 if(sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4){
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887 printf("Param list error\n");
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891 for (i = 0; i < cnt; ++i) {
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892 sprintf(path1, "%s%s%d", path, prefix, i);
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893 rc = ext4_fopen(&fd, path1, "rb+");
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900 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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901 rc = ext4_fwrite(&fd, write_buffer, d, &wb);
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907 printf("Write count error\n");
\r
918 int _multi_fread(char *p)
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929 if(sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4){
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930 printf("Param list error\n");
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934 for (i = 0; i < cnt; ++i) {
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935 sprintf(path1, "%s%s%d", path, prefix, i);
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936 rc = ext4_fopen(&fd, path1, "rb+");
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943 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
\r
945 memset(read_buffer, 0, MAX_RW_BUFFER);
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946 rc = ext4_fread(&fd, read_buffer, d, &rb);
\r
952 printf("Read count error\n");
\r
956 if(memcmp(read_buffer, write_buffer, d)){
\r
957 printf("Read compare error\n");
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968 int _multi_fremove(char *p)
\r
975 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
\r
976 printf("Param list error\n");
\r
980 for (i = 0; i < cnt; ++i) {
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981 sprintf(path1, "%s%s%d", path, prefix, i);
\r
982 rc = ext4_fremove(path1);
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990 int _multi_dcreate(char *p)
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997 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
\r
998 printf("Param list error\n");
\r
1002 for (i = 0; i < cnt; ++i) {
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1003 sprintf(path1, "%s%s%d", path, prefix, i);
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1004 rc = ext4_dir_mk(path1);
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1012 int _multi_dremove(char *p)
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1019 if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
\r
1020 printf("Param list error\n");
\r
1024 for (i = 0; i < cnt; ++i) {
\r
1025 sprintf(path1, "%s%s%d", path, prefix, i);
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1026 rc = ext4_dir_rm(path1);
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1034 struct ext4_mount_stats saved_stats;
\r
1036 int _stats_save(char *p)
\r
1040 if(sscanf(p, "%s", path) != 1){
\r
1041 printf("Param list error\n");
\r
1045 return ext4_mount_point_stats(path, &saved_stats);
\r
1048 int _stats_check(char *p)
\r
1053 struct ext4_mount_stats actual_stats;
\r
1055 if(sscanf(p, "%s", path) != 1){
\r
1056 printf("Param list error\n");
\r
1060 rc = ext4_mount_point_stats(path, &actual_stats);
\r
1065 if(memcmp(&saved_stats, &actual_stats, sizeof(struct ext4_mount_stats))){
\r
1067 printf("\tMount point stats error:\n");
\r
1068 printf("\tsaved_stats:\n");
\r
1069 printf("\tinodes_count = %d\n", saved_stats.inodes_count);
\r
1070 printf("\tfree_inodes_count = %d\n", saved_stats.free_inodes_count);
\r
1071 printf("\tblocks_count = %llu\n", saved_stats.blocks_count);
\r
1072 printf("\tfree_blocks_count = %llu\n", saved_stats.free_blocks_count);
\r
1073 printf("\tblock_size = %d\n", saved_stats.block_size);
\r
1074 printf("\tblock_group_count = %d\n", saved_stats.block_group_count);
\r
1075 printf("\tblocks_per_group = %d\n", saved_stats.blocks_per_group);
\r
1076 printf("\tinodes_per_group = %d\n", saved_stats.inodes_per_group);
\r
1077 printf("\tvolume_name = %s\n", saved_stats.volume_name);
\r
1078 printf("\tactual_stats:\n");
\r
1079 printf("\tinodes_count = %d\n", actual_stats.inodes_count);
\r
1080 printf("\tfree_inodes_count = %d\n", actual_stats.free_inodes_count);
\r
1081 printf("\tblocks_count = %llu\n", actual_stats.blocks_count);
\r
1082 printf("\tfree_blocks_count = %llu\n", actual_stats.free_blocks_count);
\r
1083 printf("\tblock_size = %d\n", actual_stats.block_size);
\r
1084 printf("\tblock_group_count = %d\n", actual_stats.block_group_count);
\r
1085 printf("\tblocks_per_group = %d\n", actual_stats.blocks_per_group);
\r
1086 printf("\tinodes_per_group = %d\n", actual_stats.inodes_per_group);
\r
1087 printf("\tvolume_name = %s\n", actual_stats.volume_name);
\r
1097 static char* entry_to_str(uint8_t type)
\r
1100 case EXT4_DIRENTRY_UNKNOWN:
\r
1102 case EXT4_DIRENTRY_REG_FILE:
\r
1104 case EXT4_DIRENTRY_DIR:
\r
1106 case EXT4_DIRENTRY_CHRDEV:
\r
1108 case EXT4_DIRENTRY_BLKDEV:
\r
1110 case EXT4_DIRENTRY_FIFO:
\r
1112 case EXT4_DIRENTRY_SOCK:
\r
1114 case EXT4_DIRENTRY_SYMLINK:
\r
1122 static int winsock_init(void)
\r
1126 static WSADATA wsaData;
\r
1127 rc = WSAStartup(MAKEWORD(2,2), &wsaData);
\r
1135 static void winsock_fini(void)
\r