*
* Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
* Copyright (C) 2001-2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2002-2007 Wayne Davison
+ * Copyright (C) 2002-2008 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
extern int am_root;
extern int rsync_port;
extern int ignore_errors;
+extern int preserve_xattrs;
extern int kluge_around_eof;
extern int daemon_over_rsh;
extern int sanitize_paths;
struct chmod_mode_struct *daemon_chmod_modes;
/* module_dirlen is the length of the module_dir string when in daemon
- * mode, not chrooted, and the path is not "/"; otherwise 0. */
+ * mode and module_dir is not "/"; otherwise 0. (Note that a chroot-
+ * enabled module can have a non-"/" module_dir these days.) */
char *module_dir = NULL;
unsigned int module_dirlen = 0;
set_socket_options(fd, sockopts);
+#ifdef ICONV_CONST
+ setup_iconv();
+#endif
+
ret = start_inband_exchange(fd, fd, user, remote_argc, remote_argv);
return ret ? ret : client_run(fd, fd, -1, argc, argv);
static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
{
int argc, opt_cnt;
- char **argv;
+ char **argv, *chroot_path = NULL;
char line[BIGPATHBUFLEN];
uid_t uid = (uid_t)-2; /* canonically "nobody" */
gid_t gid = (gid_t)-2;
pid_t pre_exec_pid = 0;
char *request = NULL;
-#ifdef ICONV_CONST
+#ifdef ICONV_OPTION
iconv_opt = lp_charset(i);
if (*iconv_opt)
setup_iconv();
/* TODO: Perhaps take a list of gids, and make them into the
* supplementary groups. */
- /* We do a push_dir() without actually calling chdir() in order
- * to make sure that the module's path is absolute. After this
- * check, module_dir will be set to an absolute path. */
module_dir = lp_path(i);
+ if (use_chroot) {
+ if ((p = strstr(module_dir, "/./")) != NULL) {
+ *p = '\0';
+ p += 2;
+ } else if ((p = strdup("/")) == NULL)
+ out_of_memory("rsync_module");
+ }
+
+ /* We do a push_dir() that doesn't actually call chdir()
+ * just to make a relative path absolute. */
strlcpy(line, curr_dir, sizeof line);
if (!push_dir(module_dir, 1))
goto chdir_failed;
- if (strcmp(curr_dir, module_dir) != 0)
- module_dir = strdup(curr_dir);
+ if (strcmp(curr_dir, module_dir) != 0
+ && (module_dir = strdup(curr_dir)) == NULL)
+ out_of_memory("rsync_module");
push_dir(line, 1); /* Restore curr_dir. */
- if (use_chroot || (module_dirlen = strlen(module_dir)) == 1) {
+ if (use_chroot) {
+ chroot_path = module_dir;
+ module_dir = p; /* p is "/" or our inside-chroot path */
+ }
+ module_dirlen = clean_fname(module_dir, CFN_COLLAPSE_DOT_DOT_DIRS | CFN_DROP_TRAILING_DOT_DIR);
+
+ if (module_dirlen == 1) {
module_dirlen = 0;
set_filter_dir("/", 1);
} else
if (*lp_prexfer_exec(i) || *lp_postxfer_exec(i)) {
char *modname, *modpath, *hostaddr, *hostname, *username;
int status;
+
+ if (!use_chroot)
+ p = module_dir;
+ else if (module_dirlen) {
+ pathjoin(line, sizeof line, chroot_path, module_dir+1);
+ p = line;
+ } else
+ p = chroot_path;
+
if (asprintf(&modname, "RSYNC_MODULE_NAME=%s", name) < 0
- || asprintf(&modpath, "RSYNC_MODULE_PATH=%s", module_dir) < 0
+ || asprintf(&modpath, "RSYNC_MODULE_PATH=%s", p) < 0
|| asprintf(&hostaddr, "RSYNC_HOST_ADDR=%s", addr) < 0
|| asprintf(&hostname, "RSYNC_HOST_NAME=%s", host) < 0
|| asprintf(&username, "RSYNC_USER_NAME=%s", auth_user) < 0)
* a warning, unless a "require chroot" flag is set,
* in which case we fail.
*/
- if (chroot(module_dir)) {
- rsyserr(FLOG, errno, "chroot %s failed", module_dir);
+ if (chroot(chroot_path)) {
+ rsyserr(FLOG, errno, "chroot %s failed", chroot_path);
io_printf(f_out, "@ERROR: chroot failed\n");
return -1;
}
- if (!push_dir("/", 0))
+ if (!push_dir(module_dir, 0))
goto chdir_failed;
+ if (module_dirlen)
+ sanitize_paths = 1;
} else {
if (!push_dir(module_dir, 0)) {
chdir_failed:
}
if ((munge_symlinks = lp_munge_symlinks(i)) < 0)
- munge_symlinks = !use_chroot;
+ munge_symlinks = !use_chroot || module_dirlen;
if (munge_symlinks) {
STRUCT_STAT st;
if (stat(SYMLINK_PREFIX, &st) == 0 && S_ISDIR(st.st_mode)) {
if (write_batch < 0)
dry_run = 1;
- if (lp_fake_super(i))
+ if (lp_fake_super(i)) {
+ if (preserve_xattrs > 1)
+ preserve_xattrs = 1;
am_root = -1;
- else if (am_root < 0) /* Treat --fake-super from client as --super. */
+ } else if (am_root < 0) /* Treat --fake-super from client as --super. */
am_root = 2;
if (filesfrom_fd == 0)
exit_cleanup(RERR_UNSUPPORTED);
}
+#ifdef ICONV_OPTION
if (!iconv_opt) {
if (ic_send != (iconv_t)-1) {
iconv_close(ic_send);
ic_recv = (iconv_t)-1;
}
}
+#endif
if (!numeric_ids
&& (use_chroot ? lp_numeric_ids(i) != False : lp_numeric_ids(i) == True))
io_printf(fd,"@RSYNCD: EXIT\n");
}
+static int load_config(int globals_only)
+{
+ if (!config_file) {
+ if (am_server && am_root <= 0)
+ config_file = RSYNCD_USERCONF;
+ else
+ config_file = RSYNCD_SYSCONF;
+ }
+ return lp_load(config_file, globals_only);
+}
+
/* this is called when a connection is established to a client
and we want to start talking. The setup of the system is done from
here */
* might cause log-file output to occur. This ensures that the
* "log file" param gets honored for the 2 non-forked use-cases
* (when rsync is run by init and run by a remote shell). */
- if (!lp_load(config_file, 0))
+ if (!load_config(0))
exit_cleanup(RERR_SYNTAX);
addr = client_addr(f_in);
int daemon_main(void)
{
- if (!config_file) {
- if (am_server && am_root <= 0)
- config_file = RSYNCD_USERCONF;
- else
- config_file = RSYNCD_SYSCONF;
- }
-
if (is_a_socket(STDIN_FILENO)) {
int i;
return start_daemon(STDIN_FILENO, STDIN_FILENO);
}
- if (!lp_load(config_file, 1)) {
+ if (!load_config(1)) {
fprintf(stderr, "Failed to parse config file: %s\n", config_file);
exit_cleanup(RERR_SYNTAX);
}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff