X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/8f3a2d54a6d3ffa7eefa13478c67ccfa9a3df513..d0d56395c8a150f72b6189e027fe9af918e23551:/clientserver.c diff --git a/clientserver.c b/clientserver.c index 33e7b444..44395357 100644 --- a/clientserver.c +++ b/clientserver.c @@ -30,7 +30,7 @@ int start_socket_client(char *host, char *path, int argc, char *argv[]) int fd, i; char *sargs[MAX_ARGS]; int sargc=0; - char line[1024]; + char line[MAXPATHLEN]; char *p, *user=NULL; extern int remote_version; @@ -102,15 +102,17 @@ static int rsync_module(int fd, int i) int argc=0; char *argv[MAX_ARGS]; char **argp; - char line[1024]; - uid_t uid; - gid_t gid; + char line[MAXPATHLEN]; + uid_t uid = (uid_t)-2; + gid_t gid = (gid_t)-2; char *p; char *addr = client_addr(fd); char *host = client_name(fd); - char *auth; char *name = lp_name(i); + char *user; int start_glob=0; + char *request=NULL; + extern int am_sender; if (!allow_access(addr, host, lp_hosts_allow(i), lp_hosts_deny(i))) { rprintf(FERROR,"rsync denied on module %s from %s (%s)\n", @@ -120,13 +122,6 @@ static int rsync_module(int fd, int i) return -1; } - if (!auth_server(fd, i, addr, "@RSYNCD: AUTHREQD ")) { - 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); - return -1; - } - if (!claim_connection(lp_lock_file(), lp_max_connections())) { rprintf(FERROR,"max connections (%d) reached\n", lp_max_connections()); @@ -134,9 +129,16 @@ static int rsync_module(int fd, int i) return -1; } - rprintf(FINFO,"rsync on module %s from %s (%s)\n", - name, host, addr); + user = auth_server(fd, i, addr, "@RSYNCD: AUTHREQD "); + + if (!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); + return -1; + } + module_id = i; if (lp_read_only(i)) @@ -165,25 +167,31 @@ static int rsync_module(int fd, int i) p = lp_exclude_from(i); add_exclude_file(p, 1); - p = lp_exclude_from(i); + p = lp_exclude(i); add_exclude_line(p); + log_open(); + if (chroot(lp_path(i))) { + rprintf(FERROR,"chroot %s failed\n", lp_path(i)); io_printf(fd,"@ERROR: chroot failed\n"); return -1; } if (chdir("/")) { + rprintf(FERROR,"chdir %s failed\n", lp_path(i)); io_printf(fd,"@ERROR: chdir failed\n"); return -1; } - if (setgid(gid)) { + if (setgid(gid) || getgid() != gid) { + rprintf(FERROR,"setgid %d failed\n", gid); io_printf(fd,"@ERROR: setgid failed\n"); return -1; } - if (setuid(uid)) { + if (setuid(uid) || getuid() != uid) { + rprintf(FERROR,"setuid %d failed\n", uid); io_printf(fd,"@ERROR: setuid failed\n"); return -1; } @@ -201,18 +209,17 @@ static int rsync_module(int fd, int i) p = line; - if (start_glob && strncmp(p, name, strlen(name)) == 0) { - p += strlen(name); - if (!*p) p = "."; - } - argv[argc] = strdup(p); if (!argv[argc]) { return -1; } if (start_glob) { - glob_expand(argv, &argc, MAX_ARGS); + if (start_glob == 1) { + request = strdup(p); + start_glob++; + } + glob_expand(name, argv, &argc, MAX_ARGS); } else { argc++; } @@ -228,6 +235,19 @@ static int rsync_module(int fd, int i) parse_arguments(argc, argv); + if (request) { + if (*user) { + rprintf(FINFO,"rsync %s %s from %s@%s (%s)\n", + am_sender?"on":"to", + request, user, host, addr); + } else { + rprintf(FINFO,"rsync %s %s from %s (%s)\n", + am_sender?"on":"to", + request, host, addr); + } + free(request); + } + /* don't allow the logs to be flooded too fast */ if (verbose > 1) verbose = 1; @@ -263,11 +283,13 @@ static int start_daemon(int fd) extern char *config_file; extern int remote_version; - if (!lp_load(config_file)) { + if (!lp_load(config_file, 0)) { exit_cleanup(1); } set_socket_options(fd,"SO_KEEPALIVE"); + set_socket_options(fd,lp_socket_options()); + io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION); @@ -324,6 +346,8 @@ static int start_daemon(int fd) int daemon_main(void) { + extern char *config_file; + if (is_a_socket(STDIN_FILENO)) { /* we are running via inetd */ return start_daemon(STDIN_FILENO); @@ -331,6 +355,15 @@ int daemon_main(void) become_daemon(); + if (!lp_load(config_file, 1)) { + fprintf(stderr,"failed to load config file %s\n", config_file); + exit_cleanup(1); + } + + log_open(); + + rprintf(FINFO,"rsyncd version %s starting\n",VERSION); + start_accept_loop(rsync_port, start_daemon); return -1; }