| 1 | /* |
| 2 | * This program is free software; you can redistribute it and/or modify |
| 3 | * it under the terms of the GNU General Public License as published by |
| 4 | * the Free Software Foundation; either version 3 of the License, or |
| 5 | * (at your option) any later version. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | * You should have received a copy of the GNU General Public License along |
| 13 | * with this program; if not, visit the http://fsf.org website. |
| 14 | */ |
| 15 | |
| 16 | /* This is based on loadparm.c from Samba, written by Andrew Tridgell |
| 17 | * and Karl Auer. Some of the changes are: |
| 18 | * |
| 19 | * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org> |
| 20 | * Copyright (C) 2003-2009 Wayne Davison <wayned@samba.org> |
| 21 | */ |
| 22 | |
| 23 | /* Load parameters. |
| 24 | * |
| 25 | * This module provides suitable callback functions for the params |
| 26 | * module. It builds the internal table of section details which is |
| 27 | * then used by the rest of the server. |
| 28 | * |
| 29 | * To add a parameter: |
| 30 | * |
| 31 | * 1) add it to the global_vars or local_vars structure definition |
| 32 | * 2) add it to the parm_table |
| 33 | * 3) add it to the list of available functions (eg: using FN_GLOBAL_STRING()) |
| 34 | * 4) initialise it in the Defaults static stucture |
| 35 | * |
| 36 | * Notes: |
| 37 | * The configuration file is processed sequentially for speed. For this |
| 38 | * reason, there is a fair bit of sequence-dependent code here - ie., code |
| 39 | * which assumes that certain things happen before others. In particular, the |
| 40 | * code which happens at the boundary between sections is delicately poised, |
| 41 | * so be careful! |
| 42 | */ |
| 43 | |
| 44 | #include "rsync.h" |
| 45 | #include "itypes.h" |
| 46 | |
| 47 | extern item_list dparam_list; |
| 48 | |
| 49 | #define strequal(a, b) (strcasecmp(a, b)==0) |
| 50 | #define BOOLSTR(b) ((b) ? "Yes" : "No") |
| 51 | |
| 52 | #ifndef LOG_DAEMON |
| 53 | #define LOG_DAEMON 0 |
| 54 | #endif |
| 55 | |
| 56 | #define DEFAULT_DONT_COMPRESS "*.gz *.zip *.z *.rpm *.deb *.iso *.bz2" \ |
| 57 | " *.t[gb]z *.7z *.mp[34] *.mov *.avi *.ogg *.jpg *.jpeg" \ |
| 58 | " *.lzo *.rzip *.lzma *.rar *.ace *.gpg" |
| 59 | |
| 60 | /* the following are used by loadparm for option lists */ |
| 61 | typedef enum { |
| 62 | P_BOOL, P_BOOLREV, P_CHAR, P_INTEGER, |
| 63 | P_OCTAL, P_PATH, P_STRING, P_ENUM |
| 64 | } parm_type; |
| 65 | |
| 66 | typedef enum { |
| 67 | P_LOCAL, P_GLOBAL, P_NONE |
| 68 | } parm_class; |
| 69 | |
| 70 | struct enum_list { |
| 71 | int value; |
| 72 | char *name; |
| 73 | }; |
| 74 | |
| 75 | struct parm_struct { |
| 76 | char *label; |
| 77 | parm_type type; |
| 78 | parm_class class; |
| 79 | void *ptr; |
| 80 | struct enum_list *enum_list; |
| 81 | unsigned flags; |
| 82 | }; |
| 83 | |
| 84 | #ifndef GLOBAL_NAME |
| 85 | #define GLOBAL_NAME "global" |
| 86 | #endif |
| 87 | |
| 88 | /* some helpful bits */ |
| 89 | #define iSECTION(i) ((local_vars*)section_list.items)[i] |
| 90 | #define LP_SNUM_OK(i) ((i) >= 0 && (i) < (int)section_list.count) |
| 91 | #define SECTION_PTR(s, p) (((char*)(s)) + (ptrdiff_t)(((char*)(p))-(char*)&Vars.l)) |
| 92 | |
| 93 | /* This structure describes global (ie., server-wide) parameters. */ |
| 94 | typedef struct { |
| 95 | char *bind_address; |
| 96 | char *motd_file; |
| 97 | char *pid_file; |
| 98 | char *socket_options; |
| 99 | |
| 100 | int rsync_port; |
| 101 | } global_vars; |
| 102 | |
| 103 | /* This structure describes a single section. Their order must match the |
| 104 | * initializers below, which you can accomplish by keeping each sub-section |
| 105 | * sorted. (e.g. in vim, just visually select each subsection and use !sort.) |
| 106 | * NOTE: the char* variables MUST all remain at the start of the stuct! */ |
| 107 | typedef struct { |
| 108 | char *auth_users; |
| 109 | char *charset; |
| 110 | char *comment; |
| 111 | char *dont_compress; |
| 112 | char *exclude; |
| 113 | char *exclude_from; |
| 114 | char *filter; |
| 115 | char *gid; |
| 116 | char *hosts_allow; |
| 117 | char *hosts_deny; |
| 118 | char *include; |
| 119 | char *include_from; |
| 120 | char *incoming_chmod; |
| 121 | char *lock_file; |
| 122 | char *log_file; |
| 123 | char *log_format; |
| 124 | char *name; |
| 125 | char *outgoing_chmod; |
| 126 | char *path; |
| 127 | char *postxfer_exec; |
| 128 | char *prexfer_exec; |
| 129 | char *refuse_options; |
| 130 | char *secrets_file; |
| 131 | char *temp_dir; |
| 132 | char *uid; |
| 133 | /* NOTE: update this macro if the last char* variable changes! */ |
| 134 | #define LOCAL_STRING_COUNT() (offsetof(local_vars, uid) / sizeof (char*) + 1) |
| 135 | |
| 136 | int max_connections; |
| 137 | int max_verbosity; |
| 138 | int syslog_facility; |
| 139 | int timeout; |
| 140 | |
| 141 | BOOL fake_super; |
| 142 | BOOL ignore_errors; |
| 143 | BOOL ignore_nonreadable; |
| 144 | BOOL list; |
| 145 | BOOL munge_symlinks; |
| 146 | BOOL numeric_ids; |
| 147 | BOOL read_only; |
| 148 | BOOL reverse_lookup; |
| 149 | BOOL strict_modes; |
| 150 | BOOL transfer_logging; |
| 151 | BOOL use_chroot; |
| 152 | BOOL write_only; |
| 153 | } local_vars; |
| 154 | |
| 155 | /* This structure describes the global variables (g) as well as the globally |
| 156 | * specified values of the local variables (l), which are used when modules |
| 157 | * don't specify their own values. */ |
| 158 | typedef struct { |
| 159 | global_vars g; |
| 160 | local_vars l; |
| 161 | } all_vars; |
| 162 | |
| 163 | /* The application defaults for all the variables. "Defaults" is |
| 164 | * used to re-initialize "Vars" before each config-file read. |
| 165 | * |
| 166 | * In order to keep these sorted in the same way as the structure |
| 167 | * above, use the variable name in the leading comment, including a |
| 168 | * trailing ';' (to avoid a sorting problem with trailing digits). */ |
| 169 | static const all_vars Defaults = { |
| 170 | /* ==== global_vars ==== */ |
| 171 | { |
| 172 | /* bind_address; */ NULL, |
| 173 | /* motd_file; */ NULL, |
| 174 | /* pid_file; */ NULL, |
| 175 | /* socket_options; */ NULL, |
| 176 | |
| 177 | /* rsync_port; */ 0, |
| 178 | }, |
| 179 | |
| 180 | /* ==== local_vars ==== */ |
| 181 | { |
| 182 | /* auth_users; */ NULL, |
| 183 | /* charset; */ NULL, |
| 184 | /* comment; */ NULL, |
| 185 | /* dont_compress; */ DEFAULT_DONT_COMPRESS, |
| 186 | /* exclude; */ NULL, |
| 187 | /* exclude_from; */ NULL, |
| 188 | /* filter; */ NULL, |
| 189 | /* gid; */ NULL, |
| 190 | /* hosts_allow; */ NULL, |
| 191 | /* hosts_deny; */ NULL, |
| 192 | /* include; */ NULL, |
| 193 | /* include_from; */ NULL, |
| 194 | /* incoming_chmod; */ NULL, |
| 195 | /* lock_file; */ DEFAULT_LOCK_FILE, |
| 196 | /* log_file; */ NULL, |
| 197 | /* log_format; */ "%o %h [%a] %m (%u) %f %l", |
| 198 | /* name; */ NULL, |
| 199 | /* outgoing_chmod; */ NULL, |
| 200 | /* path; */ NULL, |
| 201 | /* postxfer_exec; */ NULL, |
| 202 | /* prexfer_exec; */ NULL, |
| 203 | /* refuse_options; */ NULL, |
| 204 | /* secrets_file; */ NULL, |
| 205 | /* temp_dir; */ NULL, |
| 206 | /* uid; */ NULL, |
| 207 | |
| 208 | /* max_connections; */ 0, |
| 209 | /* max_verbosity; */ 1, |
| 210 | /* syslog_facility; */ LOG_DAEMON, |
| 211 | /* timeout; */ 0, |
| 212 | |
| 213 | /* fake_super; */ False, |
| 214 | /* ignore_errors; */ False, |
| 215 | /* ignore_nonreadable; */ False, |
| 216 | /* list; */ True, |
| 217 | /* munge_symlinks; */ (BOOL)-1, |
| 218 | /* numeric_ids; */ (BOOL)-1, |
| 219 | /* read_only; */ True, |
| 220 | /* reverse_lookup; */ True, |
| 221 | /* strict_modes; */ True, |
| 222 | /* transfer_logging; */ False, |
| 223 | /* use_chroot; */ True, |
| 224 | /* write_only; */ False, |
| 225 | } |
| 226 | }; |
| 227 | |
| 228 | /* The currently configured values for all the variables. */ |
| 229 | static all_vars Vars; |
| 230 | |
| 231 | /* Stack of "Vars" values used by the &include directive. */ |
| 232 | static item_list Vars_stack = EMPTY_ITEM_LIST; |
| 233 | |
| 234 | /* The array of section values that holds all the defined modules. */ |
| 235 | static item_list section_list = EMPTY_ITEM_LIST; |
| 236 | |
| 237 | static int iSectionIndex = -1; |
| 238 | static BOOL bInGlobalSection = True; |
| 239 | |
| 240 | #define NUMPARAMETERS (sizeof (parm_table) / sizeof (struct parm_struct)) |
| 241 | |
| 242 | static struct enum_list enum_facilities[] = { |
| 243 | #ifdef LOG_AUTH |
| 244 | { LOG_AUTH, "auth" }, |
| 245 | #endif |
| 246 | #ifdef LOG_AUTHPRIV |
| 247 | { LOG_AUTHPRIV, "authpriv" }, |
| 248 | #endif |
| 249 | #ifdef LOG_CRON |
| 250 | { LOG_CRON, "cron" }, |
| 251 | #endif |
| 252 | #ifdef LOG_DAEMON |
| 253 | { LOG_DAEMON, "daemon" }, |
| 254 | #endif |
| 255 | #ifdef LOG_FTP |
| 256 | { LOG_FTP, "ftp" }, |
| 257 | #endif |
| 258 | #ifdef LOG_KERN |
| 259 | { LOG_KERN, "kern" }, |
| 260 | #endif |
| 261 | #ifdef LOG_LPR |
| 262 | { LOG_LPR, "lpr" }, |
| 263 | #endif |
| 264 | #ifdef LOG_MAIL |
| 265 | { LOG_MAIL, "mail" }, |
| 266 | #endif |
| 267 | #ifdef LOG_NEWS |
| 268 | { LOG_NEWS, "news" }, |
| 269 | #endif |
| 270 | #ifdef LOG_AUTH |
| 271 | { LOG_AUTH, "security" }, |
| 272 | #endif |
| 273 | #ifdef LOG_SYSLOG |
| 274 | { LOG_SYSLOG, "syslog" }, |
| 275 | #endif |
| 276 | #ifdef LOG_USER |
| 277 | { LOG_USER, "user" }, |
| 278 | #endif |
| 279 | #ifdef LOG_UUCP |
| 280 | { LOG_UUCP, "uucp" }, |
| 281 | #endif |
| 282 | #ifdef LOG_LOCAL0 |
| 283 | { LOG_LOCAL0, "local0" }, |
| 284 | #endif |
| 285 | #ifdef LOG_LOCAL1 |
| 286 | { LOG_LOCAL1, "local1" }, |
| 287 | #endif |
| 288 | #ifdef LOG_LOCAL2 |
| 289 | { LOG_LOCAL2, "local2" }, |
| 290 | #endif |
| 291 | #ifdef LOG_LOCAL3 |
| 292 | { LOG_LOCAL3, "local3" }, |
| 293 | #endif |
| 294 | #ifdef LOG_LOCAL4 |
| 295 | { LOG_LOCAL4, "local4" }, |
| 296 | #endif |
| 297 | #ifdef LOG_LOCAL5 |
| 298 | { LOG_LOCAL5, "local5" }, |
| 299 | #endif |
| 300 | #ifdef LOG_LOCAL6 |
| 301 | { LOG_LOCAL6, "local6" }, |
| 302 | #endif |
| 303 | #ifdef LOG_LOCAL7 |
| 304 | { LOG_LOCAL7, "local7" }, |
| 305 | #endif |
| 306 | { -1, NULL } |
| 307 | }; |
| 308 | |
| 309 | static struct parm_struct parm_table[] = |
| 310 | { |
| 311 | {"address", P_STRING, P_GLOBAL,&Vars.g.bind_address, NULL,0}, |
| 312 | {"motd file", P_STRING, P_GLOBAL,&Vars.g.motd_file, NULL,0}, |
| 313 | {"pid file", P_STRING, P_GLOBAL,&Vars.g.pid_file, NULL,0}, |
| 314 | {"port", P_INTEGER,P_GLOBAL,&Vars.g.rsync_port, NULL,0}, |
| 315 | {"socket options", P_STRING, P_GLOBAL,&Vars.g.socket_options, NULL,0}, |
| 316 | |
| 317 | {"auth users", P_STRING, P_LOCAL, &Vars.l.auth_users, NULL,0}, |
| 318 | {"charset", P_STRING, P_LOCAL, &Vars.l.charset, NULL,0}, |
| 319 | {"comment", P_STRING, P_LOCAL, &Vars.l.comment, NULL,0}, |
| 320 | {"dont compress", P_STRING, P_LOCAL, &Vars.l.dont_compress, NULL,0}, |
| 321 | {"exclude from", P_STRING, P_LOCAL, &Vars.l.exclude_from, NULL,0}, |
| 322 | {"exclude", P_STRING, P_LOCAL, &Vars.l.exclude, NULL,0}, |
| 323 | {"fake super", P_BOOL, P_LOCAL, &Vars.l.fake_super, NULL,0}, |
| 324 | {"filter", P_STRING, P_LOCAL, &Vars.l.filter, NULL,0}, |
| 325 | {"gid", P_STRING, P_LOCAL, &Vars.l.gid, NULL,0}, |
| 326 | {"hosts allow", P_STRING, P_LOCAL, &Vars.l.hosts_allow, NULL,0}, |
| 327 | {"hosts deny", P_STRING, P_LOCAL, &Vars.l.hosts_deny, NULL,0}, |
| 328 | {"ignore errors", P_BOOL, P_LOCAL, &Vars.l.ignore_errors, NULL,0}, |
| 329 | {"ignore nonreadable",P_BOOL, P_LOCAL, &Vars.l.ignore_nonreadable, NULL,0}, |
| 330 | {"include from", P_STRING, P_LOCAL, &Vars.l.include_from, NULL,0}, |
| 331 | {"include", P_STRING, P_LOCAL, &Vars.l.include, NULL,0}, |
| 332 | {"incoming chmod", P_STRING, P_LOCAL, &Vars.l.incoming_chmod, NULL,0}, |
| 333 | {"list", P_BOOL, P_LOCAL, &Vars.l.list, NULL,0}, |
| 334 | {"lock file", P_STRING, P_LOCAL, &Vars.l.lock_file, NULL,0}, |
| 335 | {"log file", P_STRING, P_LOCAL, &Vars.l.log_file, NULL,0}, |
| 336 | {"log format", P_STRING, P_LOCAL, &Vars.l.log_format, NULL,0}, |
| 337 | {"max connections", P_INTEGER,P_LOCAL, &Vars.l.max_connections, NULL,0}, |
| 338 | {"max verbosity", P_INTEGER,P_LOCAL, &Vars.l.max_verbosity, NULL,0}, |
| 339 | {"munge symlinks", P_BOOL, P_LOCAL, &Vars.l.munge_symlinks, NULL,0}, |
| 340 | {"name", P_STRING, P_LOCAL, &Vars.l.name, NULL,0}, |
| 341 | {"numeric ids", P_BOOL, P_LOCAL, &Vars.l.numeric_ids, NULL,0}, |
| 342 | {"outgoing chmod", P_STRING, P_LOCAL, &Vars.l.outgoing_chmod, NULL,0}, |
| 343 | {"path", P_PATH, P_LOCAL, &Vars.l.path, NULL,0}, |
| 344 | #ifdef HAVE_PUTENV |
| 345 | {"post-xfer exec", P_STRING, P_LOCAL, &Vars.l.postxfer_exec, NULL,0}, |
| 346 | {"pre-xfer exec", P_STRING, P_LOCAL, &Vars.l.prexfer_exec, NULL,0}, |
| 347 | #endif |
| 348 | {"read only", P_BOOL, P_LOCAL, &Vars.l.read_only, NULL,0}, |
| 349 | {"refuse options", P_STRING, P_LOCAL, &Vars.l.refuse_options, NULL,0}, |
| 350 | {"reverse lookup", P_BOOL, P_LOCAL, &Vars.l.reverse_lookup, NULL,0}, |
| 351 | {"secrets file", P_STRING, P_LOCAL, &Vars.l.secrets_file, NULL,0}, |
| 352 | {"strict modes", P_BOOL, P_LOCAL, &Vars.l.strict_modes, NULL,0}, |
| 353 | {"syslog facility", P_ENUM, P_LOCAL, &Vars.l.syslog_facility, enum_facilities,0}, |
| 354 | {"temp dir", P_PATH, P_LOCAL, &Vars.l.temp_dir, NULL,0}, |
| 355 | {"timeout", P_INTEGER,P_LOCAL, &Vars.l.timeout, NULL,0}, |
| 356 | {"transfer logging", P_BOOL, P_LOCAL, &Vars.l.transfer_logging, NULL,0}, |
| 357 | {"uid", P_STRING, P_LOCAL, &Vars.l.uid, NULL,0}, |
| 358 | {"use chroot", P_BOOL, P_LOCAL, &Vars.l.use_chroot, NULL,0}, |
| 359 | {"write only", P_BOOL, P_LOCAL, &Vars.l.write_only, NULL,0}, |
| 360 | {NULL, P_BOOL, P_NONE, NULL, NULL,0} |
| 361 | }; |
| 362 | |
| 363 | /* Initialise the Default all_vars structure. */ |
| 364 | static void reset_all_vars(void) |
| 365 | { |
| 366 | memcpy(&Vars, &Defaults, sizeof Vars); |
| 367 | } |
| 368 | |
| 369 | /* Expand %VAR% references. Any unknown vars or unrecognized |
| 370 | * syntax leaves the raw chars unchanged. */ |
| 371 | static char *expand_vars(char *str) |
| 372 | { |
| 373 | char *buf, *t, *f; |
| 374 | int bufsize; |
| 375 | |
| 376 | if (strchr(str, '%') == NULL) |
| 377 | return str; |
| 378 | |
| 379 | bufsize = strlen(str) + 2048; |
| 380 | if ((buf = new_array(char, bufsize+1)) == NULL) /* +1 for trailing '\0' */ |
| 381 | out_of_memory("expand_vars"); |
| 382 | |
| 383 | for (t = buf, f = str; bufsize && *f; ) { |
| 384 | if (*f == '%' && *++f != '%') { |
| 385 | char *percent = strchr(f, '%'); |
| 386 | if (percent) { |
| 387 | char *val; |
| 388 | *percent = '\0'; |
| 389 | val = getenv(f); |
| 390 | *percent = '%'; |
| 391 | if (val) { |
| 392 | int len = strlcpy(t, val, bufsize+1); |
| 393 | if (len > bufsize) |
| 394 | break; |
| 395 | bufsize -= len; |
| 396 | t += len; |
| 397 | f = percent + 1; |
| 398 | continue; |
| 399 | } |
| 400 | } |
| 401 | f--; |
| 402 | } |
| 403 | *t++ = *f++; |
| 404 | bufsize--; |
| 405 | } |
| 406 | *t = '\0'; |
| 407 | |
| 408 | if (*f) { |
| 409 | rprintf(FLOG, "Overflowed buf in expand_vars() trying to expand: %s\n", str); |
| 410 | exit_cleanup(RERR_MALLOC); |
| 411 | } |
| 412 | |
| 413 | if (bufsize && (buf = realloc(buf, t - buf + 1)) == NULL) |
| 414 | out_of_memory("expand_vars"); |
| 415 | |
| 416 | return buf; |
| 417 | } |
| 418 | |
| 419 | /* In this section all the functions that are used to access the |
| 420 | * parameters from the rest of the program are defined. */ |
| 421 | |
| 422 | #define FN_GLOBAL_STRING(fn_name, ptr) \ |
| 423 | char *fn_name(void) {return expand_vars(*(char **)(ptr) ? *(char **)(ptr) : "");} |
| 424 | #define FN_GLOBAL_BOOL(fn_name, ptr) \ |
| 425 | BOOL fn_name(void) {return *(BOOL *)(ptr);} |
| 426 | #define FN_GLOBAL_CHAR(fn_name, ptr) \ |
| 427 | char fn_name(void) {return *(char *)(ptr);} |
| 428 | #define FN_GLOBAL_INTEGER(fn_name, ptr) \ |
| 429 | int fn_name(void) {return *(int *)(ptr);} |
| 430 | |
| 431 | #define FN_LOCAL_STRING(fn_name, val) \ |
| 432 | char *fn_name(int i) {return expand_vars(LP_SNUM_OK(i) && iSECTION(i).val ? iSECTION(i).val : Vars.l.val ? Vars.l.val : "");} |
| 433 | #define FN_LOCAL_BOOL(fn_name, val) \ |
| 434 | BOOL fn_name(int i) {return LP_SNUM_OK(i)? iSECTION(i).val : Vars.l.val;} |
| 435 | #define FN_LOCAL_CHAR(fn_name, val) \ |
| 436 | char fn_name(int i) {return LP_SNUM_OK(i)? iSECTION(i).val : Vars.l.val;} |
| 437 | #define FN_LOCAL_INTEGER(fn_name, val) \ |
| 438 | int fn_name(int i) {return LP_SNUM_OK(i)? iSECTION(i).val : Vars.l.val;} |
| 439 | |
| 440 | FN_GLOBAL_STRING(lp_bind_address, &Vars.g.bind_address) |
| 441 | FN_GLOBAL_STRING(lp_motd_file, &Vars.g.motd_file) |
| 442 | FN_GLOBAL_STRING(lp_pid_file, &Vars.g.pid_file) |
| 443 | FN_GLOBAL_STRING(lp_socket_options, &Vars.g.socket_options) |
| 444 | |
| 445 | FN_GLOBAL_INTEGER(lp_rsync_port, &Vars.g.rsync_port) |
| 446 | |
| 447 | FN_LOCAL_STRING(lp_auth_users, auth_users) |
| 448 | FN_LOCAL_STRING(lp_charset, charset) |
| 449 | FN_LOCAL_STRING(lp_comment, comment) |
| 450 | FN_LOCAL_STRING(lp_dont_compress, dont_compress) |
| 451 | FN_LOCAL_STRING(lp_exclude, exclude) |
| 452 | FN_LOCAL_STRING(lp_exclude_from, exclude_from) |
| 453 | FN_LOCAL_STRING(lp_filter, filter) |
| 454 | FN_LOCAL_STRING(lp_gid, gid) |
| 455 | FN_LOCAL_STRING(lp_hosts_allow, hosts_allow) |
| 456 | FN_LOCAL_STRING(lp_hosts_deny, hosts_deny) |
| 457 | FN_LOCAL_STRING(lp_include, include) |
| 458 | FN_LOCAL_STRING(lp_include_from, include_from) |
| 459 | FN_LOCAL_STRING(lp_incoming_chmod, incoming_chmod) |
| 460 | FN_LOCAL_STRING(lp_lock_file, lock_file) |
| 461 | FN_LOCAL_STRING(lp_log_file, log_file) |
| 462 | FN_LOCAL_STRING(lp_log_format, log_format) |
| 463 | FN_LOCAL_STRING(lp_name, name) |
| 464 | FN_LOCAL_STRING(lp_outgoing_chmod, outgoing_chmod) |
| 465 | FN_LOCAL_STRING(lp_path, path) |
| 466 | FN_LOCAL_STRING(lp_postxfer_exec, postxfer_exec) |
| 467 | FN_LOCAL_STRING(lp_prexfer_exec, prexfer_exec) |
| 468 | FN_LOCAL_STRING(lp_refuse_options, refuse_options) |
| 469 | FN_LOCAL_STRING(lp_secrets_file, secrets_file) |
| 470 | FN_LOCAL_STRING(lp_temp_dir, temp_dir) |
| 471 | FN_LOCAL_STRING(lp_uid, uid) |
| 472 | |
| 473 | FN_LOCAL_INTEGER(lp_max_connections, max_connections) |
| 474 | FN_LOCAL_INTEGER(lp_max_verbosity, max_verbosity) |
| 475 | FN_LOCAL_INTEGER(lp_syslog_facility, syslog_facility) |
| 476 | FN_LOCAL_INTEGER(lp_timeout, timeout) |
| 477 | |
| 478 | FN_LOCAL_BOOL(lp_fake_super, fake_super) |
| 479 | FN_LOCAL_BOOL(lp_ignore_errors, ignore_errors) |
| 480 | FN_LOCAL_BOOL(lp_ignore_nonreadable, ignore_nonreadable) |
| 481 | FN_LOCAL_BOOL(lp_list, list) |
| 482 | FN_LOCAL_BOOL(lp_munge_symlinks, munge_symlinks) |
| 483 | FN_LOCAL_BOOL(lp_numeric_ids, numeric_ids) |
| 484 | FN_LOCAL_BOOL(lp_read_only, read_only) |
| 485 | FN_LOCAL_BOOL(lp_reverse_lookup, reverse_lookup) |
| 486 | FN_LOCAL_BOOL(lp_strict_modes, strict_modes) |
| 487 | FN_LOCAL_BOOL(lp_transfer_logging, transfer_logging) |
| 488 | FN_LOCAL_BOOL(lp_use_chroot, use_chroot) |
| 489 | FN_LOCAL_BOOL(lp_write_only, write_only) |
| 490 | |
| 491 | /* Assign a copy of v to *s. Handles NULL strings. We don't worry |
| 492 | * about overwriting a malloc'd string because the long-running |
| 493 | * (port-listening) daemon only loads the config file once, and the |
| 494 | * per-job (forked or xinitd-ran) daemon only re-reads the file at |
| 495 | * the start, so any lost memory is inconsequential. */ |
| 496 | static inline void string_set(char **s, const char *v) |
| 497 | { |
| 498 | if (!v) |
| 499 | *s = NULL; |
| 500 | else if (!(*s = strdup(v))) |
| 501 | out_of_memory("string_set"); |
| 502 | } |
| 503 | |
| 504 | /* Copy the local_vars, strdup'ing any strings. NOTE: this depends on |
| 505 | * the structure starting with a contiguous list of the char* variables, |
| 506 | * and having an accurate count in the LOCAL_STRING_COUNT() macro. */ |
| 507 | static void copy_section(local_vars *psectionDest, local_vars *psectionSource) |
| 508 | { |
| 509 | int count = LOCAL_STRING_COUNT(); |
| 510 | char **strings = (char**)psectionDest; |
| 511 | |
| 512 | memcpy(psectionDest, psectionSource, sizeof psectionDest[0]); |
| 513 | while (count--) { |
| 514 | if (strings[count] && !(strings[count] = strdup(strings[count]))) |
| 515 | out_of_memory("copy_section"); |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | /* Initialise a section to the defaults. */ |
| 520 | static void init_section(local_vars *psection) |
| 521 | { |
| 522 | memset(psection, 0, sizeof (local_vars)); |
| 523 | copy_section(psection, &Vars.l); |
| 524 | } |
| 525 | |
| 526 | /* Do a case-insensitive, whitespace-ignoring string compare. */ |
| 527 | static int strwicmp(char *psz1, char *psz2) |
| 528 | { |
| 529 | /* if BOTH strings are NULL, return TRUE, if ONE is NULL return */ |
| 530 | /* appropriate value. */ |
| 531 | if (psz1 == psz2) |
| 532 | return 0; |
| 533 | |
| 534 | if (psz1 == NULL) |
| 535 | return -1; |
| 536 | |
| 537 | if (psz2 == NULL) |
| 538 | return 1; |
| 539 | |
| 540 | /* sync the strings on first non-whitespace */ |
| 541 | while (1) { |
| 542 | while (isSpace(psz1)) |
| 543 | psz1++; |
| 544 | while (isSpace(psz2)) |
| 545 | psz2++; |
| 546 | if (toUpper(psz1) != toUpper(psz2) || *psz1 == '\0' || *psz2 == '\0') |
| 547 | break; |
| 548 | psz1++; |
| 549 | psz2++; |
| 550 | } |
| 551 | return *psz1 - *psz2; |
| 552 | } |
| 553 | |
| 554 | /* Find a section by name. Otherwise works like get_section. */ |
| 555 | static int getsectionbyname(char *name) |
| 556 | { |
| 557 | int i; |
| 558 | |
| 559 | for (i = section_list.count - 1; i >= 0; i--) { |
| 560 | if (strwicmp(iSECTION(i).name, name) == 0) |
| 561 | break; |
| 562 | } |
| 563 | |
| 564 | return i; |
| 565 | } |
| 566 | |
| 567 | /* Add a new section to the sections array w/the default values. */ |
| 568 | static int add_a_section(char *name) |
| 569 | { |
| 570 | int i; |
| 571 | local_vars *s; |
| 572 | |
| 573 | /* it might already exist */ |
| 574 | if (name) { |
| 575 | i = getsectionbyname(name); |
| 576 | if (i >= 0) |
| 577 | return i; |
| 578 | } |
| 579 | |
| 580 | i = section_list.count; |
| 581 | s = EXPAND_ITEM_LIST(§ion_list, local_vars, 2); |
| 582 | |
| 583 | init_section(s); |
| 584 | if (name) |
| 585 | string_set(&s->name, name); |
| 586 | |
| 587 | return i; |
| 588 | } |
| 589 | |
| 590 | /* Map a parameter's string representation to something we can use. |
| 591 | * Returns False if the parameter string is not recognised, else TRUE. */ |
| 592 | static int map_parameter(char *parmname) |
| 593 | { |
| 594 | int iIndex; |
| 595 | |
| 596 | if (*parmname == '-') |
| 597 | return -1; |
| 598 | |
| 599 | for (iIndex = 0; parm_table[iIndex].label; iIndex++) { |
| 600 | if (strwicmp(parm_table[iIndex].label, parmname) == 0) |
| 601 | return iIndex; |
| 602 | } |
| 603 | |
| 604 | rprintf(FLOG, "Unknown Parameter encountered: \"%s\"\n", parmname); |
| 605 | return -1; |
| 606 | } |
| 607 | |
| 608 | /* Set a boolean variable from the text value stored in the passed string. |
| 609 | * Returns True in success, False if the passed string does not correctly |
| 610 | * represent a boolean. */ |
| 611 | static BOOL set_boolean(BOOL *pb, char *parmvalue) |
| 612 | { |
| 613 | if (strwicmp(parmvalue, "yes") == 0 |
| 614 | || strwicmp(parmvalue, "true") == 0 |
| 615 | || strwicmp(parmvalue, "1") == 0) |
| 616 | *pb = True; |
| 617 | else if (strwicmp(parmvalue, "no") == 0 |
| 618 | || strwicmp(parmvalue, "False") == 0 |
| 619 | || strwicmp(parmvalue, "0") == 0) |
| 620 | *pb = False; |
| 621 | else { |
| 622 | rprintf(FLOG, "Badly formed boolean in configuration file: \"%s\".\n", parmvalue); |
| 623 | return False; |
| 624 | } |
| 625 | return True; |
| 626 | } |
| 627 | |
| 628 | /* Process a parameter. */ |
| 629 | static BOOL do_parameter(char *parmname, char *parmvalue) |
| 630 | { |
| 631 | int parmnum, i; |
| 632 | void *parm_ptr; /* where we are going to store the result */ |
| 633 | void *def_ptr; |
| 634 | char *cp; |
| 635 | |
| 636 | parmnum = map_parameter(parmname); |
| 637 | |
| 638 | if (parmnum < 0) { |
| 639 | rprintf(FLOG, "IGNORING unknown parameter \"%s\"\n", parmname); |
| 640 | return True; |
| 641 | } |
| 642 | |
| 643 | def_ptr = parm_table[parmnum].ptr; |
| 644 | |
| 645 | if (bInGlobalSection) |
| 646 | parm_ptr = def_ptr; |
| 647 | else { |
| 648 | if (parm_table[parmnum].class == P_GLOBAL) { |
| 649 | rprintf(FLOG, "Global parameter %s found in module section!\n", parmname); |
| 650 | return True; |
| 651 | } |
| 652 | parm_ptr = SECTION_PTR(&iSECTION(iSectionIndex), def_ptr); |
| 653 | } |
| 654 | |
| 655 | /* now switch on the type of variable it is */ |
| 656 | switch (parm_table[parmnum].type) { |
| 657 | case P_PATH: |
| 658 | case P_STRING: |
| 659 | /* delay expansion of vars */ |
| 660 | break; |
| 661 | default: |
| 662 | /* expand any %VARS% now */ |
| 663 | parmvalue = expand_vars(parmvalue); |
| 664 | break; |
| 665 | } |
| 666 | |
| 667 | switch (parm_table[parmnum].type) { |
| 668 | case P_BOOL: |
| 669 | set_boolean(parm_ptr, parmvalue); |
| 670 | break; |
| 671 | |
| 672 | case P_BOOLREV: |
| 673 | set_boolean(parm_ptr, parmvalue); |
| 674 | *(BOOL *)parm_ptr = ! *(BOOL *)parm_ptr; |
| 675 | break; |
| 676 | |
| 677 | case P_INTEGER: |
| 678 | *(int *)parm_ptr = atoi(parmvalue); |
| 679 | break; |
| 680 | |
| 681 | case P_CHAR: |
| 682 | *(char *)parm_ptr = *parmvalue; |
| 683 | break; |
| 684 | |
| 685 | case P_OCTAL: |
| 686 | sscanf(parmvalue, "%o", (int *)parm_ptr); |
| 687 | break; |
| 688 | |
| 689 | case P_PATH: |
| 690 | string_set(parm_ptr, parmvalue); |
| 691 | if ((cp = *(char**)parm_ptr) != NULL) { |
| 692 | int len = strlen(cp); |
| 693 | while (len > 1 && cp[len-1] == '/') len--; |
| 694 | cp[len] = '\0'; |
| 695 | } |
| 696 | break; |
| 697 | |
| 698 | case P_STRING: |
| 699 | string_set(parm_ptr, parmvalue); |
| 700 | break; |
| 701 | |
| 702 | case P_ENUM: |
| 703 | for (i=0; parm_table[parmnum].enum_list[i].name; i++) { |
| 704 | if (strequal(parmvalue, parm_table[parmnum].enum_list[i].name)) { |
| 705 | *(int *)parm_ptr = parm_table[parmnum].enum_list[i].value; |
| 706 | break; |
| 707 | } |
| 708 | } |
| 709 | if (!parm_table[parmnum].enum_list[i].name) { |
| 710 | if (atoi(parmvalue) > 0) |
| 711 | *(int *)parm_ptr = atoi(parmvalue); |
| 712 | } |
| 713 | break; |
| 714 | } |
| 715 | |
| 716 | return True; |
| 717 | } |
| 718 | |
| 719 | /* Process a new section (rsync module). |
| 720 | * Returns True on success, False on failure. */ |
| 721 | static BOOL do_section(char *sectionname) |
| 722 | { |
| 723 | BOOL isglobal; |
| 724 | |
| 725 | if (*sectionname == ']') { /* A special push/pop/reset directive from params.c */ |
| 726 | bInGlobalSection = 1; |
| 727 | if (strcmp(sectionname+1, "push") == 0) { |
| 728 | all_vars *vp = EXPAND_ITEM_LIST(&Vars_stack, all_vars, 2); |
| 729 | memcpy(vp, &Vars, sizeof Vars); |
| 730 | } else if (strcmp(sectionname+1, "pop") == 0 |
| 731 | || strcmp(sectionname+1, "reset") == 0) { |
| 732 | all_vars *vp = ((all_vars*)Vars_stack.items) + Vars_stack.count - 1; |
| 733 | if (!Vars_stack.count) |
| 734 | return False; |
| 735 | memcpy(&Vars, vp, sizeof Vars); |
| 736 | if (sectionname[1] == 'p') |
| 737 | Vars_stack.count--; |
| 738 | } else |
| 739 | return False; |
| 740 | return True; |
| 741 | } |
| 742 | |
| 743 | isglobal = strwicmp(sectionname, GLOBAL_NAME) == 0; |
| 744 | |
| 745 | /* At the end of the global section, add any --dparam items. */ |
| 746 | if (bInGlobalSection && !isglobal) { |
| 747 | if (!section_list.count) |
| 748 | set_dparams(0); |
| 749 | } |
| 750 | |
| 751 | /* if we've just struck a global section, note the fact. */ |
| 752 | bInGlobalSection = isglobal; |
| 753 | |
| 754 | /* check for multiple global sections */ |
| 755 | if (bInGlobalSection) |
| 756 | return True; |
| 757 | |
| 758 | #if 0 |
| 759 | /* If we have a current section, tidy it up before moving on. */ |
| 760 | if (iSectionIndex >= 0) { |
| 761 | /* Add any tidy work as needed ... */ |
| 762 | if (problem) |
| 763 | return False; |
| 764 | } |
| 765 | #endif |
| 766 | |
| 767 | if (strchr(sectionname, '/') != NULL) { |
| 768 | rprintf(FLOG, "Warning: invalid section name in configuration file: %s\n", sectionname); |
| 769 | return False; |
| 770 | } |
| 771 | |
| 772 | if ((iSectionIndex = add_a_section(sectionname)) < 0) { |
| 773 | rprintf(FLOG, "Failed to add a new module\n"); |
| 774 | bInGlobalSection = True; |
| 775 | return False; |
| 776 | } |
| 777 | |
| 778 | return True; |
| 779 | } |
| 780 | |
| 781 | /* Load the modules from the config file. Return True on success, |
| 782 | * False on failure. */ |
| 783 | int lp_load(char *pszFname, int globals_only) |
| 784 | { |
| 785 | bInGlobalSection = True; |
| 786 | |
| 787 | reset_all_vars(); |
| 788 | |
| 789 | /* We get sections first, so have to start 'behind' to make up. */ |
| 790 | iSectionIndex = -1; |
| 791 | return pm_process(pszFname, globals_only ? NULL : do_section, do_parameter); |
| 792 | } |
| 793 | |
| 794 | BOOL set_dparams(int syntax_check_only) |
| 795 | { |
| 796 | char *equal, *val, **params = dparam_list.items; |
| 797 | unsigned j; |
| 798 | |
| 799 | for (j = 0; j < dparam_list.count; j++) { |
| 800 | equal = strchr(params[j], '='); /* options.c verified this */ |
| 801 | *equal = '\0'; |
| 802 | if (syntax_check_only) { |
| 803 | if (map_parameter(params[j]) < 0) { |
| 804 | rprintf(FERROR, "Unknown parameter \"%s\"\n", params[j]); |
| 805 | *equal = '='; |
| 806 | return False; |
| 807 | } |
| 808 | } else { |
| 809 | for (val = equal+1; isSpace(val); val++) {} |
| 810 | do_parameter(params[j], val); |
| 811 | } |
| 812 | *equal = '='; |
| 813 | } |
| 814 | |
| 815 | return True; |
| 816 | } |
| 817 | |
| 818 | /* Return the max number of modules (sections). */ |
| 819 | int lp_num_modules(void) |
| 820 | { |
| 821 | return section_list.count; |
| 822 | } |
| 823 | |
| 824 | /* Return the number of the module with the given name, or -1 if it doesn't |
| 825 | * exist. Note that this is a DIFFERENT ANIMAL from the internal function |
| 826 | * getsectionbyname()! This works ONLY if all sections have been loaded, |
| 827 | * and does not copy the found section. */ |
| 828 | int lp_number(char *name) |
| 829 | { |
| 830 | int i; |
| 831 | |
| 832 | for (i = section_list.count - 1; i >= 0; i--) { |
| 833 | if (strcmp(lp_name(i), name) == 0) |
| 834 | break; |
| 835 | } |
| 836 | |
| 837 | return i; |
| 838 | } |