X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fcontrol.c;h=98eae804d7cc46b79b0d9448fbadd512d2984618;hp=539ff3605993c3c3bb80033e5140e2f53b6320de;hb=390d25f0b80dd7418e147de3561c70461628574d;hpb=cc3c69c892b0dad9a6ece0a0f4ccd429a22fcbff diff --git a/src/control.c b/src/control.c index 539ff360..98eae804 100644 --- a/src/control.c +++ b/src/control.c @@ -106,7 +106,7 @@ bool control_h(connection_t *c, const char *request) { for list_each(connection_t, other, connection_list) { if(strcmp(other->name, name)) continue; - terminate_connection(other, other->status.active); + terminate_connection(other, other->edge); found = true; } @@ -137,17 +137,16 @@ bool init_control(void) { randomize(controlcookie, sizeof controlcookie / 2); bin2hex(controlcookie, controlcookie, sizeof controlcookie / 2); + mode_t mask = umask(0); + umask(mask | 077); FILE *f = fopen(pidfilename, "w"); + umask(mask); + if(!f) { logger(DEBUG_ALWAYS, LOG_ERR, "Cannot write control socket cookie file %s: %s", pidfilename, strerror(errno)); return false; } -#ifdef HAVE_FCHMOD - fchmod(fileno(f), 0600); -#else - chmod(pidfilename, 0600); -#endif // Get the address and port of the first listening socket char *localhost = NULL; @@ -157,7 +156,7 @@ bool init_control(void) { // Make sure we have a valid address, and map 0.0.0.0 and :: to 127.0.0.1 and ::1. if(getsockname(listen_socket[0].tcp.fd, (struct sockaddr *)&sa, &len)) { - xasprintf(&localhost, "127.0.0.1 port %d", myport); + xasprintf(&localhost, "127.0.0.1 port %s", myport); } else { if(sa.sa.sa_family == AF_INET) { if(sa.in.sin_addr.s_addr == 0) @@ -176,9 +175,50 @@ bool init_control(void) { free(localhost); fclose(f); +#ifndef HAVE_MINGW + int unix_fd = socket(AF_UNIX, SOCK_STREAM, 0); + if(unix_fd < 0) { + logger(DEBUG_ALWAYS, LOG_ERR, "Could not create UNIX socket: %s", sockstrerror(sockerrno)); + return false; + } + + struct sockaddr_un sa_un; + sa_un.sun_family = AF_UNIX; + strncpy(sa_un.sun_path, unixsocketname, sizeof sa_un.sun_path); + + if(connect(unix_fd, (struct sockaddr *)&sa_un, sizeof sa_un) >= 0) { + logger(DEBUG_ALWAYS, LOG_ERR, "UNIX socket %s is still in use!", unixsocketname); + return false; + } + + unlink(unixsocketname); + + umask(mask | 077); + int result = bind(unix_fd, (struct sockaddr *)&sa_un, sizeof sa_un); + umask(mask); + + if(result < 0) { + logger(DEBUG_ALWAYS, LOG_ERR, "Could not bind UNIX socket to %s: %s", unixsocketname, sockstrerror(sockerrno)); + return false; + } + + if(listen(unix_fd, 3) < 0) { + logger(DEBUG_ALWAYS, LOG_ERR, "Could not listen on UNIX socket %s: %s", unixsocketname, sockstrerror(sockerrno)); + return false; + } + + io_add(&unix_socket, handle_new_unix_connection, &unix_socket, unix_fd, IO_READ); +#endif + return true; } void exit_control(void) { +#ifndef HAVE_MINGW + unlink(unixsocketname); + io_del(&unix_socket); + close(unix_socket.fd); +#endif + unlink(pidfilename); }