Make sure daemon's io_timeout is used as a maximum value.
[rsync.git] / clientserver.c
index a9a1af58ff216cd6145fc5c3de79bf077fb62eca..c8d2a0e792105d1626466388e54b9e9103028560 100644 (file)
@@ -3,7 +3,7 @@
  *
  * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
  * Copyright (C) 2001-2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2002-2008 Wayne Davison
+ * Copyright (C) 2002-2009 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
@@ -56,7 +56,7 @@ extern char *logfile_format;
 extern char *files_from;
 extern char *tmpdir;
 extern struct chmod_mode_struct *chmod_modes;
-extern struct filter_list_struct server_filter_list;
+extern struct filter_list_struct daemon_filter_list;
 extern char curr_dir[];
 #ifdef ICONV_OPTION
 extern char *iconv_opt;
@@ -75,6 +75,8 @@ struct chmod_mode_struct *daemon_chmod_modes;
 char *module_dir = NULL;
 unsigned int module_dirlen = 0;
 
+char *full_module_path;
+
 static int rl_nulls = 0;
 
 #ifdef HAVE_SIGACTION
@@ -121,8 +123,6 @@ int start_socket_client(char *host, int remote_argc, char *remote_argv[],
        if (fd == -1)
                exit_cleanup(RERR_SOCKETIO);
 
-       set_socket_options(fd, sockopts);
-
 #ifdef ICONV_CONST
        setup_iconv();
 #endif
@@ -214,7 +214,7 @@ int start_inband_exchange(int f_in, int f_out, const char *user, int argc, char
        int sargc = 0;
        char *p, *modname;
 
-       assert(argc > 0);
+       assert(argc > 0 && *argv != NULL);
 
        if (**argv == '/') {
                rprintf(FERROR,
@@ -397,10 +397,20 @@ static int read_arg_from_pipe(int fd, char *buf, int limit)
        return bp - buf;
 }
 
+static int path_failure(int f_out, const char *dir, BOOL was_chdir)
+{
+       if (was_chdir)
+               rsyserr(FLOG, errno, "chdir %s failed\n", dir);
+       else
+               rprintf(FLOG, "normalize_path(%s) failed\n", dir);
+       io_printf(f_out, "@ERROR: chdir failed\n");
+       return -1;
+}
+
 static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
 {
        int argc;
-       char **argv, **orig_argv, **orig_early_argv, *chroot_path = NULL;
+       char **argv, **orig_argv, **orig_early_argv, *module_chdir;
        char line[BIGPATHBUFLEN];
        uid_t uid = (uid_t)-2;  /* canonically "nobody" */
        gid_t gid = (gid_t)-2;
@@ -503,27 +513,27 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
        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)) == NULL)
-               out_of_memory("rsync_module");
-       push_dir(line, 1); /* Restore curr_dir. */
-
-       if (use_chroot) {
-               chroot_path = module_dir;
-               module_dir = p; /* p is "/" or our inside-chroot path */
+                       *p = '\0'; /* Temporary... */
+                       if (!(module_chdir = normalize_path(module_dir, True, NULL)))
+                               return path_failure(f_out, module_dir, False);
+                       *p = '/';
+                       if (!(p = normalize_path(p + 2, True, &module_dirlen)))
+                               return path_failure(f_out, strstr(module_dir, "/./"), False);
+                       if (!(full_module_path = normalize_path(module_dir, False, NULL)))
+                               full_module_path = module_dir;
+                       module_dir = p;
+               } else {
+                       if (!(module_chdir = normalize_path(module_dir, False, NULL)))
+                               return path_failure(f_out, module_dir, False);
+                       full_module_path = module_chdir;
+                       module_dir = "/";
+                       module_dirlen = 1;
+               }
+       } else {
+               if (!(module_chdir = normalize_path(module_dir, False, &module_dirlen)))
+                       return path_failure(f_out, module_dir, False);
+               full_module_path = module_dir = module_chdir;
        }
-       module_dirlen = clean_fname(module_dir, CFN_COLLAPSE_DOT_DOT_DIRS | CFN_DROP_TRAILING_DOT_DIR);
 
        if (module_dirlen == 1) {
                module_dirlen = 0;
@@ -532,25 +542,25 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                set_filter_dir(module_dir, module_dirlen);
 
        p = lp_filter(i);
-       parse_rule(&server_filter_list, p, MATCHFLG_WORD_SPLIT,
-                  XFLG_ABS_IF_SLASH);
+       parse_rule(&daemon_filter_list, p, MATCHFLG_WORD_SPLIT,
+                  XFLG_ABS_IF_SLASH | XFLG_DIR2WILD3);
 
        p = lp_include_from(i);
-       parse_filter_file(&server_filter_list, p, MATCHFLG_INCLUDE,
-           XFLG_ABS_IF_SLASH | XFLG_OLD_PREFIXES | XFLG_FATAL_ERRORS);
+       parse_filter_file(&daemon_filter_list, p, MATCHFLG_INCLUDE,
+           XFLG_ABS_IF_SLASH | XFLG_DIR2WILD3 | XFLG_OLD_PREFIXES | XFLG_FATAL_ERRORS);
 
        p = lp_include(i);
-       parse_rule(&server_filter_list, p,
+       parse_rule(&daemon_filter_list, p,
                   MATCHFLG_INCLUDE | MATCHFLG_WORD_SPLIT,
-                  XFLG_ABS_IF_SLASH | XFLG_OLD_PREFIXES);
+                  XFLG_ABS_IF_SLASH | XFLG_DIR2WILD3 | XFLG_OLD_PREFIXES);
 
        p = lp_exclude_from(i);
-       parse_filter_file(&server_filter_list, p, 0,
-           XFLG_ABS_IF_SLASH | XFLG_OLD_PREFIXES | XFLG_FATAL_ERRORS);
+       parse_filter_file(&daemon_filter_list, p, 0,
+           XFLG_ABS_IF_SLASH | XFLG_DIR2WILD3 | XFLG_OLD_PREFIXES | XFLG_FATAL_ERRORS);
 
        p = lp_exclude(i);
-       parse_rule(&server_filter_list, p, MATCHFLG_WORD_SPLIT,
-                  XFLG_ABS_IF_SLASH | XFLG_OLD_PREFIXES);
+       parse_rule(&daemon_filter_list, p, MATCHFLG_WORD_SPLIT,
+                  XFLG_ABS_IF_SLASH | XFLG_DIR2WILD3 | XFLG_OLD_PREFIXES);
 
        log_init(1);
 
@@ -559,16 +569,8 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                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", p) < 0
+                || asprintf(&modpath, "RSYNC_MODULE_PATH=%s", full_module_path) < 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)
@@ -602,7 +604,8 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                                        status = -1;
                                if (asprintf(&p, "RSYNC_EXIT_STATUS=%d", status) > 0)
                                        putenv(p);
-                               system(lp_postxfer_exec(i));
+                               if (system(lp_postxfer_exec(i)) < 0)
+                                       status = -1;
                                _exit(status);
                        }
                }
@@ -668,25 +671,19 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
                 * a warning, unless a "require chroot" flag is set,
                 * in which case we fail.
                 */
-               if (chroot(chroot_path)) {
-                       rsyserr(FLOG, errno, "chroot %s failed", chroot_path);
+               if (chroot(module_chdir)) {
+                       rsyserr(FLOG, errno, "chroot %s failed", module_chdir);
                        io_printf(f_out, "@ERROR: chroot failed\n");
                        return -1;
                }
-               if (!push_dir(module_dir, 0))
-                       goto chdir_failed;
-               if (module_dirlen)
-                       sanitize_paths = 1;
-       } else {
-               if (!push_dir(module_dir, 0)) {
-                 chdir_failed:
-                       rsyserr(FLOG, errno, "chdir %s failed\n", module_dir);
-                       io_printf(f_out, "@ERROR: chdir failed\n");
-                       return -1;
-               }
-               sanitize_paths = 1;
+               module_chdir = module_dir;
        }
 
+       if (!change_dir(module_chdir, CD_NORMAL))
+               return path_failure(f_out, module_chdir, True);
+       if (module_dirlen || !use_chroot)
+               sanitize_paths = 1;
+
        if ((munge_symlinks = lp_munge_symlinks(i)) < 0)
                munge_symlinks = !use_chroot || module_dirlen;
        if (munge_symlinks) {
@@ -859,7 +856,7 @@ static int rsync_module(int f_in, int f_out, int i, char *addr, char *host)
         && (use_chroot ? lp_numeric_ids(i) != False : lp_numeric_ids(i) == True))
                numeric_ids = -1; /* Set --numeric-ids w/o breaking protocol. */
 
-       if (lp_timeout(i) && lp_timeout(i) > io_timeout)
+       if (lp_timeout(i) && (!io_timeout || lp_timeout(i) < io_timeout))
                set_io_timeout(lp_timeout(i));
 
        /* If we have some incoming/outgoing chmod changes, append them to
@@ -931,10 +928,6 @@ int start_daemon(int f_in, int f_out)
 
        if (!am_server) {
                set_socket_options(f_in, "SO_KEEPALIVE");
-               if (sockopts)
-                       set_socket_options(f_in, sockopts);
-               else
-                       set_socket_options(f_in, lp_socket_options());
                set_nonblocking(f_in);
        }
 
@@ -978,20 +971,23 @@ static void create_pid_file(void)
        char *pid_file = lp_pid_file();
        char pidbuf[16];
        pid_t pid = getpid();
-       int fd;
+       int fd, len;
 
        if (!pid_file || !*pid_file)
                return;
 
        cleanup_set_pid(pid);
        if ((fd = do_open(pid_file, O_WRONLY|O_CREAT|O_EXCL, 0666 & ~orig_umask)) == -1) {
+         failure:
                cleanup_set_pid(0);
                fprintf(stderr, "failed to create pid file %s: %s\n", pid_file, strerror(errno));
                rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
                exit_cleanup(RERR_FILEIO);
        }
        snprintf(pidbuf, sizeof pidbuf, "%ld\n", (long)pid);
-       write(fd, pidbuf, strlen(pidbuf));
+       len = strlen(pidbuf);
+       if (write(fd, pidbuf, len) != len)
+               goto failure;
        close(fd);
 }