/* -*- c-file-style: "linux"; -*-
- *
+ *
* Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
* Copyright (C) 2001-2002 by Martin Pool <mbp@samba.org>
- *
+ *
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
extern int rsync_port;
char *auth_user;
extern int sanitize_paths;
+extern int filesfrom_fd;
+extern int remote_protocol;
+extern int protocol_version;
+extern struct exclude_struct **server_exclude_list;
+extern char *exclude_path_prefix;
/**
* Run a client connected to an rsyncd. The alternative to this
char *p, *user=NULL;
extern char *bind_address;
extern int default_af_hint;
-
+
/* this is redundant with code in start_inband_exchange(), but
- this short-circuits a problem before we open a socket, and
- the extra check won't hurt */
+ * this short-circuits a problem before we open a socket, and
+ * the extra check won't hurt */
if (*path == '/') {
rprintf(FERROR,"ERROR: The remote path must start with a module name not a /\n");
return -1;
rprintf(FINFO, "opening tcp connection to %s port %d\n",
host, rsync_port);
}
- fd = open_socket_out_wrapped (host, rsync_port, bind_address,
- default_af_hint);
+ fd = open_socket_out_wrapped(host, rsync_port, bind_address,
+ default_af_hint);
if (fd == -1) {
exit_cleanup(RERR_SOCKETIO);
}
int sargc = 0;
char line[MAXPATHLEN];
char *p;
- extern int remote_version;
extern int kludge_around_eof;
extern int am_sender;
extern int daemon_over_rsh;
if (!user) user = getenv("USER");
if (!user) user = getenv("LOGNAME");
- /* set daemon_over_rsh to false since we need to build the
- true set of args passed through the rsh/ssh connection;
- this is a no-op for direct-socket-connection mode */
+ /* set daemon_over_rsh to false since we need to build the
+ * true set of args passed through the rsh/ssh connection;
+ * this is a no-op for direct-socket-connection mode */
daemon_over_rsh = 0;
server_options(sargs, &sargc);
sargs[sargc++] = ".";
- if (path && *path)
+ if (path && *path)
sargs[sargc++] = path;
sargs[sargc] = NULL;
- io_printf(f_out, "@RSYNCD: %d\n", PROTOCOL_VERSION);
+ io_printf(f_out, "@RSYNCD: %d\n", protocol_version);
if (!read_line(f_in, line, sizeof(line)-1)) {
rprintf(FERROR, "rsync: did not see server greeting\n");
return -1;
}
- if (sscanf(line,"@RSYNCD: %d", &remote_version) != 1) {
+ if (sscanf(line,"@RSYNCD: %d", &remote_protocol) != 1) {
/* note that read_line strips of \n or \r */
rprintf(FERROR, "rsync: server sent \"%s\" rather than greeting\n",
line);
return -1;
}
+ if (protocol_version > remote_protocol)
+ protocol_version = remote_protocol;
p = strchr(path,'/');
if (p) *p = 0;
/* Old servers may just drop the connection here,
rather than sending a proper EXIT command. Yuck. */
- kludge_around_eof = list_only && (remote_version < 25);
+ kludge_around_eof = list_only && (protocol_version < 25);
while (1) {
if (!read_line(f_in, line, sizeof(line)-1)) {
}
io_printf(f_out, "\n");
- if (remote_version < 23) {
- if (remote_version == 22 || (remote_version > 17 && !am_sender))
+ if (protocol_version < 23) {
+ if (protocol_version == 22 || !am_sender)
io_start_multiplex_in(f_in);
}
extern int am_sender;
extern int am_server;
extern int am_daemon;
- extern int remote_version;
extern int am_root;
if (!allow_access(addr, host, lp_hosts_allow(i), lp_hosts_deny(i))) {
} else {
rprintf(FERROR,"max connections (%d) reached\n",
lp_max_connections(i));
- io_printf(f_out, "@ERROR: max connections (%d) reached - try again later\n", lp_max_connections(i));
+ io_printf(f_out, "@ERROR: max connections (%d) reached - try again later\n",
+ lp_max_connections(i));
}
return -1;
}
-
+
auth_user = auth_server(f_in, f_out, i, addr, "@RSYNCD: AUTHREQD ");
if (!auth_user) {
rprintf(FERROR,"auth failed on module %s from %s (%s)\n",
name, host, addr);
io_printf(f_out, "@ERROR: auth failed on module %s\n", name);
- return -1;
+ return -1;
}
module_id = i;
rprintf(FERROR,"Invalid uid %s\n", p);
io_printf(f_out, "@ERROR: invalid uid %s\n", p);
return -1;
- }
+ }
uid = atoi(p);
}
rprintf(FERROR,"Invalid gid %s\n", p);
io_printf(f_out, "@ERROR: invalid gid %s\n", p);
return -1;
- }
+ }
gid = atoi(p);
}
}
-
- /* TODO: If we're not root, but the configuration requests
- * that we change to some uid other than the current one, then
- * log a warning. */
- /* TODO: Perhaps take a list of gids, and make them into the
- * supplementary groups. */
+ /* TODO: If we're not root, but the configuration requests
+ * that we change to some uid other than the current one, then
+ * log a warning. */
+
+ /* TODO: Perhaps take a list of gids, and make them into the
+ * supplementary groups. */
+
+ exclude_path_prefix = use_chroot? "" : lp_path(i);
+ if (*exclude_path_prefix == '/' && !exclude_path_prefix[1])
+ exclude_path_prefix = "";
p = lp_include_from(i);
- add_exclude_file(p, 1, 1);
+ add_exclude_file(&server_exclude_list, p, MISSING_FATAL, ADD_INCLUDE);
p = lp_include(i);
- add_include_line(p);
+ add_exclude_line(&server_exclude_list, p, ADD_INCLUDE);
p = lp_exclude_from(i);
- add_exclude_file(p, 1, 0);
+ add_exclude_file(&server_exclude_list, p, MISSING_FATAL, ADD_EXCLUDE);
p = lp_exclude(i);
- add_exclude_line(p);
+ add_exclude_line(&server_exclude_list, p, ADD_EXCLUDE);
+
+ exclude_path_prefix = NULL;
log_init();
}
if (!push_dir("/", 0)) {
- rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
+ rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
io_printf(f_out, "@ERROR: chdir failed\n");
return -1;
}
}
if (am_root) {
-#ifdef HAVE_SETGROUPS
- /* Get rid of any supplementary groups this process
- * might have inheristed. */
- if (setgroups(0, NULL)) {
- rsyserr(FERROR, errno, "setgroups failed");
- io_printf(f_out, "@ERROR: setgroups failed\n");
- return -1;
- }
-#endif
-
/* XXXX: You could argue that if the daemon is started
* by a non-root user and they explicitly specify a
* gid, then we should try to change to that gid --
io_printf(f_out, "@ERROR: setgid failed\n");
return -1;
}
+#ifdef HAVE_SETGROUPS
+ /* Get rid of any supplementary groups this process
+ * might have inheristed. */
+ if (setgroups(1, &gid)) {
+ rsyserr(FERROR, errno, "setgroups failed");
+ io_printf(f_out, "@ERROR: setgroups failed\n");
+ return -1;
+ }
+#endif
if (setuid(uid)) {
rsyserr(FERROR, errno, "setuid %d failed", (int) uid);
}
}
- argp = argv;
+ argp = argv;
ret = parse_arguments(&argc, (const char ***) &argp, 0);
+ if (filesfrom_fd == 0)
+ filesfrom_fd = f_in;
+
if (request) {
if (*auth_user) {
rprintf(FINFO,"rsync %s %s from %s@%s (%s)\n",
if (verbose > 1) verbose = 1;
#endif
- if (remote_version < 23) {
- if (remote_version == 22 || (remote_version > 17 && am_sender))
+ if (protocol_version < 23) {
+ if (protocol_version == 22 || am_sender)
io_start_multiplex_out(f_out);
}
-
- /* For later protocol versions, we don't start multiplexing
- * until we've configured nonblocking in start_server. That
- * means we're in a sticky situation now: there's no way to
- * convey errors to the client. */
- /* FIXME: Hold off on reporting option processing errors until
- * we've set up nonblocking and multiplexed IO and can get the
- * message back to them. */
+ /* For later protocol versions, we don't start multiplexing
+ * until we've configured nonblocking in start_server. That
+ * means we're in a sticky situation now: there's no way to
+ * convey errors to the client. */
+
+ /* FIXME: Hold off on reporting option processing errors until
+ * we've set up nonblocking and multiplexed IO and can get the
+ * message back to them. */
if (!ret) {
- option_error();
- exit_cleanup(RERR_UNSUPPORTED);
+ option_error();
+ exit_cleanup(RERR_UNSUPPORTED);
}
if (lp_timeout(i)) {
{
int n = lp_numservices();
int i;
- extern int remote_version;
for (i=0;i<n;i++)
if (lp_list(i))
- io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i));
+ io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i));
- if (remote_version >= 25)
+ if (protocol_version >= 25)
io_printf(fd,"@RSYNCD: EXIT\n");
}
char *motd;
int i = -1;
extern char *config_file;
- extern int remote_version;
extern int am_server;
if (!lp_load(config_file, 0)) {
set_nonblocking(f_in);
}
- io_printf(f_out, "@RSYNCD: %d\n", PROTOCOL_VERSION);
+ io_printf(f_out, "@RSYNCD: %d\n", protocol_version);
motd = lp_motd_file();
if (motd && *motd) {
return -1;
}
- if (sscanf(line,"@RSYNCD: %d", &remote_version) != 1) {
+ if (sscanf(line,"@RSYNCD: %d", &remote_protocol) != 1) {
io_printf(f_out, "@ERROR: protocol startup error\n");
return -1;
- }
+ }
+ if (protocol_version > remote_protocol)
+ protocol_version = remote_protocol;
while (i == -1) {
line[0] = 0;
if (!*line || strcmp(line,"#list")==0) {
send_listing(f_out);
return -1;
- }
+ }
if (*line == '#') {
/* it's some sort of command that I don't understand */
int i;
/* we are running via inetd - close off stdout and
- stderr so that library functions (and getopt) don't
- try to use them. Redirect them to /dev/null */
+ * stderr so that library functions (and getopt) don't
+ * try to use them. Redirect them to /dev/null */
for (i=1;i<3;i++) {
- close(i);
+ close(i);
open("/dev/null", O_RDWR);
}
}
if (!no_detach)
- become_daemon();
+ become_daemon();
if (!lp_load(config_file, 1)) {
exit_cleanup(RERR_SYNTAX);
log_init();
rprintf(FINFO, "rsyncd version %s starting, listening on port %d\n",
- RSYNC_VERSION,
- rsync_port);
- /* TODO: If listening on a particular address, then show that
- * address too. In fact, why not just do inet_ntop on the
- * local address??? */
+ RSYNC_VERSION, rsync_port);
+ /* TODO: If listening on a particular address, then show that
+ * address too. In fact, why not just do inet_ntop on the
+ * local address??? */
if (((pid_file = lp_pid_file()) != NULL) && (*pid_file != '\0')) {
char pidbuf[16];
cleanup_set_pid(pid);
if ((fd = do_open(lp_pid_file(), O_WRONLY|O_CREAT|O_TRUNC,
0666 & ~orig_umask)) == -1) {
- cleanup_set_pid(0);
- rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
- exit_cleanup(RERR_FILEIO);
+ cleanup_set_pid(0);
+ rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
+ exit_cleanup(RERR_FILEIO);
}
snprintf(pidbuf, sizeof(pidbuf), "%d\n", pid);
write(fd, pidbuf, strlen(pidbuf));
start_accept_loop(rsync_port, start_daemon);
return -1;
}
-