From 129d050b9f5725ea4c54e1d906aba43eca95b860 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 20 Dec 2021 01:44:41 +0000 Subject: [PATCH] remove ujail-console ujail-console is now integrated in uxc. Signed-off-by: Daniel Golle --- CMakeLists.txt | 6 -- jail/console.c | 221 ------------------------------------------------- 2 files changed, 227 deletions(-) delete mode 100644 jail/console.c diff --git a/CMakeLists.txt b/CMakeLists.txt index d787052..36599f0 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -123,12 +123,6 @@ IF(SECCOMP_SUPPORT) ADD_DEPENDENCIES(ujail syscall-names-h) ENDIF() -ADD_EXECUTABLE(ujail-console jail/console.c) -TARGET_LINK_LIBRARIES(ujail-console ${ubox} ${ubus} ${blobmsg_json}) -INSTALL(TARGETS ujail-console - RUNTIME DESTINATION ${CMAKE_INSTALL_SBINDIR} -) - ADD_EXECUTABLE(uxc uxc.c) TARGET_LINK_LIBRARIES(uxc ${ubox} ${ubus} ${blobmsg_json}) INSTALL(TARGETS uxc diff --git a/jail/console.c b/jail/console.c deleted file mode 100644 index 498756f..0000000 --- a/jail/console.c +++ /dev/null @@ -1,221 +0,0 @@ -/* - * Copyright (C) 2020 Daniel Golle - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 - * as published by the Free Software Foundation - * - * 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. - */ - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static inline int setup_tios(int fd, struct termios *oldtios) -{ - struct termios newtios; - - if (!isatty(fd)) { - return -1; - } - - /* Get current termios */ - if (tcgetattr(fd, oldtios)) - return -1; - - newtios = *oldtios; - - /* We use the same settings that ssh does. */ - newtios.c_iflag |= IGNPAR; - newtios.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF); - newtios.c_lflag &= ~(TOSTOP | ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL); - newtios.c_oflag &= ~ONLCR; - newtios.c_oflag |= OPOST; - newtios.c_cc[VMIN] = 1; - newtios.c_cc[VTIME] = 0; - - /* Set new attributes */ - if (tcsetattr(fd, TCSAFLUSH, &newtios)) - return -1; - - return 0; -} - - - -#define OPT_ARGS "i:c:" - -static struct ustream_fd cufd; -static struct ustream_fd lufd; - -static void usage() -{ - fprintf(stderr, "ujail-console -c [-i ]\n"); - exit(1); -} - -static void client_cb(struct ustream *s, int bytes) -{ - char *buf; - int len, rv; - - do { - buf = ustream_get_read_buf(s, &len); - if (!buf) - break; - - rv = ustream_write(&lufd.stream, buf, len, false); - - if (rv > 0) - ustream_consume(s, rv); - - if (rv <= len) - break; - } while(1); -} - -static void local_cb(struct ustream *s, int bytes) -{ - char *buf; - int len, rv; - - do { - buf = ustream_get_read_buf(s, &len); - if (!buf) - break; - - if ((len > 0) && (buf[0] == 2)) - uloop_end(); - - rv = ustream_write(&cufd.stream, buf, len, false); - - if (rv > 0) - ustream_consume(s, rv); - - if (rv <= len) - break; - } while(1); -} - -int main(int argc, char **argv) -{ - struct ubus_context *ctx; - uint32_t id; - static struct blob_buf req; - char *container_name = NULL, *instance_name = NULL; - int client_fd, server_fd, tty_fd; - struct termios oldtermios; - int ch; - - while ((ch = getopt(argc, argv, OPT_ARGS)) != -1) { - switch (ch) { - case 'i': - instance_name = optarg; - break; - case 'c': - container_name = optarg; - break; - default: - usage(); - } - } - - if (!container_name) - usage(); - - ctx = ubus_connect(NULL); - if (!ctx) { - fprintf(stderr, "can't connect to ubus!\n"); - return -1; - } - - /* open pseudo-terminal pair */ - client_fd = posix_openpt(O_RDWR | O_NOCTTY); - if (client_fd < 0) { - fprintf(stderr, "can't create virtual console!\n"); - ubus_free(ctx); - return -1; - } - setup_tios(client_fd, &oldtermios); - grantpt(client_fd); - unlockpt(client_fd); - server_fd = open(ptsname(client_fd), O_RDWR | O_NOCTTY); - if (server_fd < 0) { - fprintf(stderr, "can't open virtual console!\n"); - close(client_fd); - ubus_free(ctx); - return -1; - } - setup_tios(server_fd, &oldtermios); - - tty_fd = open("/dev/tty", O_RDWR); - if (tty_fd < 0) { - fprintf(stderr, "can't open local console!\n"); - close(server_fd); - close(client_fd); - ubus_free(ctx); - return -1; - } - setup_tios(tty_fd, &oldtermios); - - /* register server-side with procd */ - blob_buf_init(&req, 0); - blobmsg_add_string(&req, "name", container_name); - if (instance_name) - blobmsg_add_string(&req, "instance", instance_name); - - if (ubus_lookup_id(ctx, "container", &id) || - ubus_invoke_fd(ctx, id, "console_attach", req.head, NULL, NULL, 3000, server_fd)) { - fprintf(stderr, "ubus request failed\n"); - close(server_fd); - close(client_fd); - blob_buf_free(&req); - ubus_free(ctx); - return -2; - } - - close(server_fd); - blob_buf_free(&req); - ubus_free(ctx); - - uloop_init(); - - /* forward between stdio and client_fd until detach is requested */ - lufd.stream.notify_read = local_cb; - ustream_fd_init(&lufd, tty_fd); - - cufd.stream.notify_read = client_cb; -/* ToDo: handle remote close and other events */ -// cufd.stream.notify_state = client_state_cb; - ustream_fd_init(&cufd, client_fd); - - fprintf(stderr, "attaching to jail console. press [CTRL]+[B] to exit.\n"); - close(0); - close(1); - close(2); - uloop_run(); - - tcsetattr(tty_fd, TCSAFLUSH, &oldtermios); - ustream_free(&lufd.stream); - ustream_free(&cufd.stream); - close(client_fd); - - return 0; -} -- 2.30.2