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,
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273 printf("setsockopt() error: %s\n", strerror(errno));
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277 serv_addr.sin_family = AF_INET;
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278 serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
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279 serv_addr.sin_port = htons(connection_port);
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281 if (bind(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr))) {
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282 printf("bind() error: %s\n", strerror(errno));
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286 if (listen(fd, 1)) {
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287 printf("listen() error: %s\n", strerror(errno));
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294 static bool parse_opt(int argc, char **argv)
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296 int option_index = 0;
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299 static struct option long_options[] = {
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300 {"image", required_argument, 0, 'i'},
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301 {"port", required_argument, 0, 'p'},
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302 {"verbose", required_argument, 0, 'v'},
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303 {"winpart", required_argument, 0, 'w'},
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304 {"cache_wb", required_argument, 0, 'c'},
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307 while (-1 != (c = getopt_long(argc, argv, "c:i:p:v:w:", long_options,
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312 ext4_fname = optarg;
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315 connection_port = atoi(optarg);
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318 verbose = atoi(optarg);
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321 cache_wb = atoi(optarg);
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324 winpart = atoi(optarg);
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327 printf("%s", usage);
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334 int main(int argc, char *argv[])
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341 if (!parse_opt(argc, argv))
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344 listenfd = server_open();
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346 printf("lwext4_server: listening on port: %d\n", connection_port);
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348 memset(write_buffer, RW_BUFFER_PATERN, MAX_RW_BUFFER);
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350 connfd = accept(listenfd, (struct sockaddr *)NULL, NULL);
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352 n = recv(connfd, op_code, sizeof(op_code), 0);
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355 printf("recv() error: %s fd = %d\n", strerror(errno),
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362 int r = exec_op_code(op_code);
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364 n = send(connfd, (void *)&r, sizeof(r), 0);
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366 printf("send() error: %s fd = %d\n", strerror(errno),
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378 int _device_register(char *p)
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384 if (sscanf(p, "%d %d %s", &dev, &cache_mode, dev_name) != 3) {
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385 printf("Param list error\n");
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391 ext4_io_raw_filename(ext4_fname);
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392 bd = ext4_io_raw_dev_get();
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397 ext4_filedev_filename(ext4_fname);
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398 bd = ext4_filedev_get();
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400 return ext4_device_register(bd, 0, dev_name);
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403 int _mount(char *p)
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406 char mount_point[32];
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409 if (sscanf(p, "%s %s", dev_name, mount_point) != 2) {
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410 printf("Param list error\n");
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414 rc = ext4_mount(dev_name, mount_point);
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416 ext4_cache_write_back(mount_point, 1);
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420 int _umount(char *p)
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422 char mount_point[32];
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424 if (sscanf(p, "%s", mount_point) != 1) {
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425 printf("Param list error\n");
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430 ext4_cache_write_back(mount_point, 0);
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432 return ext4_umount(mount_point);
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435 int _mount_point_stats(char *p)
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437 char mount_point[32];
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440 struct ext4_mount_stats stats;
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442 if (sscanf(p, "%s %d", mount_point, &d) != 2) {
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443 printf("Param list error\n");
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447 rc = ext4_mount_point_stats(mount_point, &stats);
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453 printf("\tinodes_count = %d\n", stats.inodes_count);
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454 printf("\tfree_inodes_count = %d\n", stats.free_inodes_count);
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455 printf("\tblocks_count = %llu\n", stats.blocks_count);
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456 printf("\tfree_blocks_count = %llu\n", stats.free_blocks_count);
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458 printf("\tblock_size = %d\n", stats.block_size);
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459 printf("\tblock_group_count = %d\n", stats.block_group_count);
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460 printf("\tblocks_per_group = %d\n", stats.blocks_per_group);
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461 printf("\tinodes_per_group = %d\n", stats.inodes_per_group);
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463 printf("\tvolume_name = %s\n", stats.volume_name);
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469 int _cache_write_back(char *p)
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471 char mount_point[32];
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474 if (sscanf(p, "%s %d", mount_point, &en) != 2) {
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475 printf("Param list error\n");
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479 return ext4_cache_write_back(mount_point, en);
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482 int _fremove(char *p)
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486 if (sscanf(p, "%s", path) != 1) {
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487 printf("Param list error\n");
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491 return ext4_fremove(path);
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494 int _fopen(char *p)
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496 int fid = MAX_FILES;
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501 if (sscanf(p, "%d %s %s", &fid, path, flags) != 3) {
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502 printf("Param list error\n");
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506 if (!(fid < MAX_FILES)) {
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507 printf("File id too big\n");
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511 rc = ext4_fopen(&file_tab[fid].fd, path, flags);
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514 strcpy(file_tab[fid].name, path);
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519 int _fclose(char *p)
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521 int fid = MAX_FILES;
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524 if (sscanf(p, "%d", &fid) != 1) {
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525 printf("Param list error\n");
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529 if (!(fid < MAX_FILES)) {
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530 printf("File id too big\n");
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534 if (file_tab[fid].name[0] == 0) {
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535 printf("File id empty\n");
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539 rc = ext4_fclose(&file_tab[fid].fd);
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542 file_tab[fid].name[0] = 0;
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547 int _fread(char *p)
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549 int fid = MAX_FILES;
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555 if (sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4) {
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556 printf("Param list error\n");
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560 if (!(fid < MAX_FILES)) {
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561 printf("File id too big\n");
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565 if (file_tab[fid].name[0] == 0) {
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566 printf("File id empty\n");
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571 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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573 memset(read_buffer, 0, MAX_RW_BUFFER);
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574 rc = ext4_fread(&file_tab[fid].fd, read_buffer, d, &rb);
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580 printf("Read count error\n");
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584 if (memcmp(read_buffer, write_buffer, d)) {
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585 printf("Read compare error\n");
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595 int _fwrite(char *p)
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597 int fid = MAX_FILES;
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603 if (sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4) {
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604 printf("Param list error\n");
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608 if (!(fid < MAX_FILES)) {
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609 printf("File id too big\n");
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613 if (file_tab[fid].name[0] == 0) {
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614 printf("File id empty\n");
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619 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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620 rc = ext4_fwrite(&file_tab[fid].fd, write_buffer, d, &wb);
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626 printf("Write count error\n");
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636 int _fseek(char *p)
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638 int fid = MAX_FILES;
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642 if (sscanf(p, "%d %d %d", &fid, &off, &origin) != 3) {
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643 printf("Param list error\n");
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647 if (!(fid < MAX_FILES)) {
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648 printf("File id too big\n");
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652 if (file_tab[fid].name[0] == 0) {
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653 printf("File id empty\n");
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657 return ext4_fseek(&file_tab[fid].fd, off, origin);
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660 int _ftell(char *p)
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662 int fid = MAX_FILES;
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665 if (sscanf(p, "%d %u", &fid, &exp_pos) != 2) {
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666 printf("Param list error\n");
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670 if (!(fid < MAX_FILES)) {
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671 printf("File id too big\n");
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675 if (file_tab[fid].name[0] == 0) {
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676 printf("File id empty\n");
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680 if (exp_pos != ext4_ftell(&file_tab[fid].fd)) {
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681 printf("Expected filepos error\n");
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688 int _fsize(char *p)
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690 int fid = MAX_FILES;
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693 if (sscanf(p, "%d %u", &fid, &exp_size) != 2) {
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694 printf("Param list error\n");
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698 if (!(fid < MAX_FILES)) {
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699 printf("File id too big\n");
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703 if (file_tab[fid].name[0] == 0) {
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704 printf("File id empty\n");
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708 if (exp_size != ext4_fsize(&file_tab[fid].fd)) {
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709 printf("Expected filesize error\n");
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716 int _dir_rm(char *p)
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720 if (sscanf(p, "%s", path) != 1) {
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721 printf("Param list error\n");
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725 return ext4_dir_rm(path);
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728 int _dir_mk(char *p)
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732 if (sscanf(p, "%s", path) != 1) {
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733 printf("Param list error\n");
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737 return ext4_dir_mk(path);
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740 int _dir_open(char *p)
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742 int did = MAX_DIRS;
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746 if (sscanf(p, "%d %s", &did, path) != 2) {
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747 printf("Param list error\n");
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751 if (!(did < MAX_DIRS)) {
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752 printf("Dir id too big\n");
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756 rc = ext4_dir_open(&dir_tab[did].fd, path);
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759 strcpy(dir_tab[did].name, path);
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764 int _dir_close(char *p)
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766 int did = MAX_DIRS;
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769 if (sscanf(p, "%d", &did) != 1) {
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770 printf("Param list error\n");
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774 if (!(did < MAX_DIRS)) {
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775 printf("Dir id too big\n");
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779 if (dir_tab[did].name[0] == 0) {
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780 printf("Dir id empty\n");
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784 rc = ext4_dir_close(&dir_tab[did].fd);
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787 dir_tab[did].name[0] = 0;
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792 int _dir_entry_get(char *p)
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794 int did = MAX_DIRS;
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798 if (sscanf(p, "%d %d", &did, &exp) != 2) {
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799 printf("Param list error\n");
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803 if (!(did < MAX_DIRS)) {
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804 printf("Dir id too big\n");
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808 if (dir_tab[did].name[0] == 0) {
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809 printf("Dir id empty\n");
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814 const ext4_direntry *d;
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816 while ((d = ext4_dir_entry_next(&dir_tab[did].fd)) != NULL) {
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819 memcpy(name, d->name, d->name_length);
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820 name[d->name_length] = 0;
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822 printf("\t%s %s\n", entry_to_str(d->inode_type), name);
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827 printf("Minumum dir entry error\n");
\r
831 if ((idx - 2) != exp) {
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832 printf("Expected dir entry error\n");
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839 int _multi_fcreate(char *p)
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849 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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850 printf("Param list error\n");
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854 for (i = 0; i < cnt; ++i) {
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855 sprintf(path1, "%s%s%d", path, prefix, i);
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856 rc = ext4_fopen(&fd, path1, "wb+");
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865 int _multi_fwrite(char *p)
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876 if (sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4) {
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877 printf("Param list error\n");
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881 for (i = 0; i < cnt; ++i) {
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882 sprintf(path1, "%s%s%d", path, prefix, i);
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883 rc = ext4_fopen(&fd, path1, "rb+");
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890 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
\r
891 rc = ext4_fwrite(&fd, write_buffer, d, &wb);
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897 printf("Write count error\n");
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908 int _multi_fread(char *p)
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919 if (sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4) {
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920 printf("Param list error\n");
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924 for (i = 0; i < cnt; ++i) {
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925 sprintf(path1, "%s%s%d", path, prefix, i);
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926 rc = ext4_fopen(&fd, path1, "rb+");
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933 d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
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935 memset(read_buffer, 0, MAX_RW_BUFFER);
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936 rc = ext4_fread(&fd, read_buffer, d, &rb);
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942 printf("Read count error\n");
\r
946 if (memcmp(read_buffer, write_buffer, d)) {
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947 printf("Read compare error\n");
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958 int _multi_fremove(char *p)
\r
965 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
\r
966 printf("Param list error\n");
\r
970 for (i = 0; i < cnt; ++i) {
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971 sprintf(path1, "%s%s%d", path, prefix, i);
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972 rc = ext4_fremove(path1);
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980 int _multi_dcreate(char *p)
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987 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
\r
988 printf("Param list error\n");
\r
992 for (i = 0; i < cnt; ++i) {
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993 sprintf(path1, "%s%s%d", path, prefix, i);
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994 rc = ext4_dir_mk(path1);
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1002 int _multi_dremove(char *p)
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1009 if (sscanf(p, "%s %s %d", path, prefix, &cnt) != 3) {
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1010 printf("Param list error\n");
\r
1014 for (i = 0; i < cnt; ++i) {
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1015 sprintf(path1, "%s%s%d", path, prefix, i);
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1016 rc = ext4_dir_rm(path1);
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1024 struct ext4_mount_stats saved_stats;
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1026 int _stats_save(char *p)
\r
1030 if (sscanf(p, "%s", path) != 1) {
\r
1031 printf("Param list error\n");
\r
1035 return ext4_mount_point_stats(path, &saved_stats);
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1038 int _stats_check(char *p)
\r
1043 struct ext4_mount_stats actual_stats;
\r
1045 if (sscanf(p, "%s", path) != 1) {
\r
1046 printf("Param list error\n");
\r
1050 rc = ext4_mount_point_stats(path, &actual_stats);
\r
1055 if (memcmp(&saved_stats, &actual_stats,
\r
1056 sizeof(struct ext4_mount_stats))) {
\r
1058 printf("\tMount point stats error:\n");
\r
1059 printf("\tsaved_stats:\n");
\r
1060 printf("\tinodes_count = %d\n",
\r
1061 saved_stats.inodes_count);
\r
1062 printf("\tfree_inodes_count = %d\n",
\r
1063 saved_stats.free_inodes_count);
\r
1064 printf("\tblocks_count = %llu\n",
\r
1065 saved_stats.blocks_count);
\r
1066 printf("\tfree_blocks_count = %llu\n",
\r
1067 saved_stats.free_blocks_count);
\r
1068 printf("\tblock_size = %d\n", saved_stats.block_size);
\r
1069 printf("\tblock_group_count = %d\n",
\r
1070 saved_stats.block_group_count);
\r
1071 printf("\tblocks_per_group = %d\n",
\r
1072 saved_stats.blocks_per_group);
\r
1073 printf("\tinodes_per_group = %d\n",
\r
1074 saved_stats.inodes_per_group);
\r
1075 printf("\tvolume_name = %s\n", saved_stats.volume_name);
\r
1076 printf("\tactual_stats:\n");
\r
1077 printf("\tinodes_count = %d\n",
\r
1078 actual_stats.inodes_count);
\r
1079 printf("\tfree_inodes_count = %d\n",
\r
1080 actual_stats.free_inodes_count);
\r
1081 printf("\tblocks_count = %llu\n",
\r
1082 actual_stats.blocks_count);
\r
1083 printf("\tfree_blocks_count = %llu\n",
\r
1084 actual_stats.free_blocks_count);
\r
1085 printf("\tblock_size = %d\n", actual_stats.block_size);
\r
1086 printf("\tblock_group_count = %d\n",
\r
1087 actual_stats.block_group_count);
\r
1088 printf("\tblocks_per_group = %d\n",
\r
1089 actual_stats.blocks_per_group);
\r
1090 printf("\tinodes_per_group = %d\n",
\r
1091 actual_stats.inodes_per_group);
\r
1092 printf("\tvolume_name = %s\n",
\r
1093 actual_stats.volume_name);
\r
1101 static char *entry_to_str(uint8_t type)
\r
1104 case EXT4_DIRENTRY_UNKNOWN:
\r
1106 case EXT4_DIRENTRY_REG_FILE:
\r
1108 case EXT4_DIRENTRY_DIR:
\r
1110 case EXT4_DIRENTRY_CHRDEV:
\r
1112 case EXT4_DIRENTRY_BLKDEV:
\r
1114 case EXT4_DIRENTRY_FIFO:
\r
1116 case EXT4_DIRENTRY_SOCK:
\r
1118 case EXT4_DIRENTRY_SYMLINK:
\r
1126 static int winsock_init(void)
\r
1130 static WSADATA wsaData;
\r
1131 rc = WSAStartup(MAKEWORD(2, 2), &wsaData);
\r
1139 static void winsock_fini(void)
\r