X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/27d3cdbc943a57d64f4f2a35a4f1e1b15d9ca41f..716baed7ff23f949861f0eb369c013408e17f984:/clientserver.c diff --git a/clientserver.c b/clientserver.c index f7293bf5..557eb5fd 100644 --- a/clientserver.c +++ b/clientserver.c @@ -24,6 +24,7 @@ extern int module_id; extern int read_only; extern int verbose; extern int rsync_port; +char *auth_user; int start_socket_client(char *host, char *path, int argc, char *argv[]) { @@ -55,7 +56,7 @@ int start_socket_client(char *host, char *path, int argc, char *argv[]) fd = open_socket_out(host, rsync_port); if (fd == -1) { - exit_cleanup(1); + exit_cleanup(RERR_SOCKETIO); } server_options(sargs,&sargc); @@ -121,7 +122,6 @@ static int rsync_module(int fd, int i) char *addr = client_addr(fd); char *host = client_name(fd); char *name = lp_name(i); - char *user; int use_chroot = lp_use_chroot(i); int start_glob=0; int ret; @@ -138,24 +138,24 @@ static int rsync_module(int fd, int i) return -1; } - if (!claim_connection(lp_lock_file(), lp_max_connections())) { + if (!claim_connection(lp_lock_file(i), lp_max_connections(i))) { if (errno) { rprintf(FERROR,"failed to open lock file %s : %s\n", - lp_lock_file(), strerror(errno)); + lp_lock_file(i), strerror(errno)); io_printf(fd,"@ERROR: failed to open lock file %s : %s\n", - lp_lock_file(), strerror(errno)); + lp_lock_file(i), strerror(errno)); } else { rprintf(FERROR,"max connections (%d) reached\n", - lp_max_connections()); - io_printf(fd,"@ERROR: max connections (%d) reached - try again later\n", lp_max_connections()); + lp_max_connections(i)); + io_printf(fd,"@ERROR: max connections (%d) reached - try again later\n", lp_max_connections(i)); } return -1; } - user = auth_server(fd, i, addr, "@RSYNCD: AUTHREQD "); + auth_user = auth_server(fd, i, addr, "@RSYNCD: AUTHREQD "); - if (!user) { + if (!auth_user) { rprintf(FERROR,"auth failed on module %s from %s (%s)\n", name, client_name(fd), client_addr(fd)); io_printf(fd,"@ERROR: auth failed on module %s\n",name); @@ -167,26 +167,36 @@ static int rsync_module(int fd, int i) if (lp_read_only(i)) read_only = 1; - p = lp_uid(i); - if (!name_to_uid(p, &uid)) { - if (!isdigit(*p)) { - rprintf(FERROR,"Invalid uid %s\n", p); - io_printf(fd,"@ERROR: invalid uid\n"); - return -1; - } - uid = atoi(p); - } + am_root = (getuid() == 0); - p = lp_gid(i); - if (!name_to_gid(p, &gid)) { - if (!isdigit(*p)) { - rprintf(FERROR,"Invalid gid %s\n", p); - io_printf(fd,"@ERROR: invalid gid\n"); - return -1; - } - gid = atoi(p); + if (am_root) { + p = lp_uid(i); + if (!name_to_uid(p, &uid)) { + if (!isdigit(*p)) { + rprintf(FERROR,"Invalid uid %s\n", p); + io_printf(fd,"@ERROR: invalid uid\n"); + return -1; + } + uid = atoi(p); + } + + p = lp_gid(i); + if (!name_to_gid(p, &gid)) { + if (!isdigit(*p)) { + rprintf(FERROR,"Invalid gid %s\n", p); + io_printf(fd,"@ERROR: invalid gid\n"); + return -1; + } + gid = atoi(p); + } } + p = lp_include_from(i); + add_exclude_file(p, 1, 1); + + p = lp_include(i); + add_include_line(p); + p = lp_exclude_from(i); add_exclude_file(p, 1, 0); @@ -208,28 +218,30 @@ static int rsync_module(int fd, int i) return -1; } - if (setgid(gid) || getgid() != gid) { + } else { + if (!push_dir(lp_path(i), 0)) { + rprintf(FERROR,"chdir %s failed\n", lp_path(i)); + io_printf(fd,"@ERROR: chdir failed\n"); + return -1; + } + } + + if (am_root) { + if (setgid(gid)) { rprintf(FERROR,"setgid %d failed\n", gid); io_printf(fd,"@ERROR: setgid failed\n"); return -1; } - if (setuid(uid) || getuid() != uid) { + if (setuid(uid)) { rprintf(FERROR,"setuid %d failed\n", uid); io_printf(fd,"@ERROR: setuid failed\n"); return -1; } - } else { - if (!push_dir(lp_path(i), 0)) { - rprintf(FERROR,"chdir %s failed\n", lp_path(i)); - io_printf(fd,"@ERROR: chdir failed\n"); - return -1; - } + am_root = (getuid() == 0); } - am_root = (getuid() == 0); - io_printf(fd,"@RSYNCD: OK\n"); argv[argc++] = "rsyncd"; @@ -253,7 +265,7 @@ static int rsync_module(int fd, int i) request = strdup(p); start_glob++; } - glob_expand(name, argv, &argc, MAX_ARGS); + glob_expand(name, argv, &argc, MAX_ARGS, !use_chroot); } else { argc++; } @@ -276,19 +288,17 @@ static int rsync_module(int fd, int i) * and which aren't. */ for (i = 1; i < argc; i++) { - char *copy = sanitize_path(argv[i]); - free((void *)argv[i]); - argv[i] = copy; + sanitize_path(argv[i]); } } ret = parse_arguments(argc, argv); if (request) { - if (*user) { + if (*auth_user) { rprintf(FINFO,"rsync %s %s from %s@%s (%s)\n", am_sender?"on":"to", - request, user, host, addr); + request, auth_user, host, addr); } else { rprintf(FINFO,"rsync %s %s from %s (%s)\n", am_sender?"on":"to", @@ -310,8 +320,12 @@ static int rsync_module(int fd, int i) io_start_multiplex_out(fd); if (!ret) { - rprintf(FERROR,"Error parsing options (unsupported option?) - aborting\n"); - exit_cleanup(1); + option_error(); + } + + if (lp_timeout(i)) { + extern int io_timeout; + io_timeout = lp_timeout(i); } start_server(fd, fd, argc, argp); @@ -343,7 +357,7 @@ static int start_daemon(int fd) extern int remote_version; if (!lp_load(config_file, 0)) { - exit_cleanup(1); + exit_cleanup(RERR_SYNTAX); } set_socket_options(fd,"SO_KEEPALIVE"); @@ -433,7 +447,7 @@ int daemon_main(void) if (!lp_load(config_file, 1)) { fprintf(stderr,"failed to load config file %s\n", config_file); - exit_cleanup(1); + exit_cleanup(RERR_SYNTAX); } log_open(); @@ -447,7 +461,7 @@ int daemon_main(void) if ((f = fopen(lp_pid_file(), "w")) == NULL) { cleanup_set_pid(0); fprintf(stderr,"failed to create pid file %s\n", pid_file); - exit_cleanup(1); + exit_cleanup(RERR_FILEIO); } fprintf(f, "%d\n", pid); fclose(f);