./tools/notsd-move

1 files changed, 333 insertions, 0 deletions

diff --git a/src/grp-initprogs/systemd-vconsole-setup/vconsole-setup.c b/src/grp-initprogs/systemd-vconsole-setup/vconsole-setup.c
new file mode 100644
index 0000000000..7edab74051
--- /dev/null
+++ b/src/grp-initprogs/systemd-vconsole-setup/vconsole-setup.c
@@ -0,0 +1,333 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Kay Sievers
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <linux/kd.h>
+#include <linux/tiocl.h>
+#include <linux/vt.h>
+
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/fd-util.h"
+#include "systemd-basic/fileio.h"
+#include "systemd-basic/io-util.h"
+#include "systemd-basic/locale-util.h"
+#include "systemd-basic/log.h"
+#include "systemd-basic/process-util.h"
+#include "systemd-basic/signal-util.h"
+#include "systemd-basic/stdio-util.h"
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/terminal-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-basic/virt.h"
+
+static bool is_vconsole(int fd) {
+        unsigned char data[1];
+
+        data[0] = TIOCL_GETFGCONSOLE;
+        return ioctl(fd, TIOCLINUX, data) >= 0;
+}
+
+static int disable_utf8(int fd) {
+        int r = 0, k;
+
+        if (ioctl(fd, KDSKBMODE, K_XLATE) < 0)
+                r = -errno;
+
+        k = loop_write(fd, "\033%@", 3, false);
+        if (k < 0)
+                r = k;
+
+        k = write_string_file("/sys/module/vt/parameters/default_utf8", "0", 0);
+        if (k < 0)
+                r = k;
+
+        if (r < 0)
+                log_warning_errno(r, "Failed to disable UTF-8: %m");
+
+        return r;
+}
+
+static int enable_utf8(int fd) {
+        int r = 0, k;
+        long current = 0;
+
+        if (ioctl(fd, KDGKBMODE, &current) < 0 || current == K_XLATE) {
+                /*
+                 * Change the current keyboard to unicode, unless it
+                 * is currently in raw or off mode anyway. We
+                 * shouldn't interfere with X11's processing of the
+                 * key events.
+                 *
+                 * http://lists.freedesktop.org/archives/systemd-devel/2013-February/008573.html
+                 *
+                 */
+
+                if (ioctl(fd, KDSKBMODE, K_UNICODE) < 0)
+                        r = -errno;
+        }
+
+        k = loop_write(fd, "\033%G", 3, false);
+        if (k < 0)
+                r = k;
+
+        k = write_string_file("/sys/module/vt/parameters/default_utf8", "1", 0);
+        if (k < 0)
+                r = k;
+
+        if (r < 0)
+                log_warning_errno(r, "Failed to enable UTF-8: %m");
+
+        return r;
+}
+
+static int keyboard_load_and_wait(const char *vc, const char *map, const char *map_toggle, bool utf8) {
+        const char *args[8];
+        int i = 0, r;
+        pid_t pid;
+
+        /* An empty map means kernel map */
+        if (isempty(map))
+                return 1;
+
+        args[i++] = KBD_LOADKEYS;
+        args[i++] = "-q";
+        args[i++] = "-C";
+        args[i++] = vc;
+        if (utf8)
+                args[i++] = "-u";
+        args[i++] = map;
+        if (map_toggle)
+                args[i++] = map_toggle;
+        args[i++] = NULL;
+
+        pid = fork();
+        if (pid < 0)
+                return log_error_errno(errno, "Failed to fork: %m");
+        else if (pid == 0) {
+
+                (void) reset_all_signal_handlers();
+                (void) reset_signal_mask();
+
+                execv(args[0], (char **) args);
+                _exit(EXIT_FAILURE);
+        }
+
+        r = wait_for_terminate_and_warn(KBD_LOADKEYS, pid, true);
+        if (r < 0)
+                return r;
+
+        return r == 0;
+}
+
+static int font_load_and_wait(const char *vc, const char *font, const char *map, const char *unimap) {
+        const char *args[9];
+        int i = 0, r;
+        pid_t pid;
+
+        /* An empty font means kernel font */
+        if (isempty(font))
+                return 1;
+
+        args[i++] = KBD_SETFONT;
+        args[i++] = "-C";
+        args[i++] = vc;
+        args[i++] = font;
+        if (map) {
+                args[i++] = "-m";
+                args[i++] = map;
+        }
+        if (unimap) {
+                args[i++] = "-u";
+                args[i++] = unimap;
+        }
+        args[i++] = NULL;
+
+        pid = fork();
+        if (pid < 0)
+                return log_error_errno(errno, "Failed to fork: %m");
+        else if (pid == 0) {
+
+                (void) reset_all_signal_handlers();
+                (void) reset_signal_mask();
+
+                execv(args[0], (char **) args);
+                _exit(EXIT_FAILURE);
+        }
+
+        r = wait_for_terminate_and_warn(KBD_SETFONT, pid, true);
+        if (r < 0)
+                return r;
+
+        return r == 0;
+}
+
+/*
+ * A newly allocated VT uses the font from the active VT. Here
+ * we update all possibly already allocated VTs with the configured
+ * font. It also allows to restart systemd-vconsole-setup.service,
+ * to apply a new font to all VTs.
+ */
+static void font_copy_to_all_vcs(int fd) {
+        struct vt_stat vcs = {};
+        unsigned char map8[E_TABSZ];
+        unsigned short map16[E_TABSZ];
+        struct unimapdesc unimapd;
+        _cleanup_free_ struct unipair* unipairs = NULL;
+        int i, r;
+
+        unipairs = new(struct unipair, USHRT_MAX);
+        if (!unipairs) {
+                log_oom();
+                return;
+        }
+
+        /* get active, and 16 bit mask of used VT numbers */
+        r = ioctl(fd, VT_GETSTATE, &vcs);
+        if (r < 0) {
+                log_debug_errno(errno, "VT_GETSTATE failed, ignoring: %m");
+                return;
+        }
+
+        for (i = 1; i <= 15; i++) {
+                char vcname[strlen("/dev/vcs") + DECIMAL_STR_MAX(int)];
+                _cleanup_close_ int vcfd = -1;
+                struct console_font_op cfo = {};
+
+                if (i == vcs.v_active)
+                        continue;
+
+                /* skip non-allocated ttys */
+                xsprintf(vcname, "/dev/vcs%i", i);
+                if (access(vcname, F_OK) < 0)
+                        continue;
+
+                xsprintf(vcname, "/dev/tty%i", i);
+                vcfd = open_terminal(vcname, O_RDWR|O_CLOEXEC);
+                if (vcfd < 0)
+                        continue;
+
+                /* copy font from active VT, where the font was uploaded to */
+                cfo.op = KD_FONT_OP_COPY;
+                cfo.height = vcs.v_active-1; /* tty1 == index 0 */
+                (void) ioctl(vcfd, KDFONTOP, &cfo);
+
+                /* copy map of 8bit chars */
+                if (ioctl(fd, GIO_SCRNMAP, map8) >= 0)
+                        (void) ioctl(vcfd, PIO_SCRNMAP, map8);
+
+                /* copy map of 8bit chars -> 16bit Unicode values */
+                if (ioctl(fd, GIO_UNISCRNMAP, map16) >= 0)
+                        (void) ioctl(vcfd, PIO_UNISCRNMAP, map16);
+
+                /* copy unicode translation table */
+                /* unimapd is a ushort count and a pointer to an
+                   array of struct unipair { ushort, ushort } */
+                unimapd.entries  = unipairs;
+                unimapd.entry_ct = USHRT_MAX;
+                if (ioctl(fd, GIO_UNIMAP, &unimapd) >= 0) {
+                        struct unimapinit adv = { 0, 0, 0 };
+
+                        (void) ioctl(vcfd, PIO_UNIMAPCLR, &adv);
+                        (void) ioctl(vcfd, PIO_UNIMAP, &unimapd);
+                }
+        }
+}
+
+int main(int argc, char **argv) {
+        const char *vc;
+        _cleanup_free_ char
+                *vc_keymap = NULL, *vc_keymap_toggle = NULL,
+                *vc_font = NULL, *vc_font_map = NULL, *vc_font_unimap = NULL;
+        _cleanup_close_ int fd = -1;
+        bool utf8, font_copy = false, font_ok, keyboard_ok;
+        int r = EXIT_FAILURE;
+
+        log_set_target(LOG_TARGET_AUTO);
+        log_parse_environment();
+        log_open();
+
+        umask(0022);
+
+        if (argv[1])
+                vc = argv[1];
+        else {
+                vc = "/dev/tty0";
+                font_copy = true;
+        }
+
+        fd = open_terminal(vc, O_RDWR|O_CLOEXEC);
+        if (fd < 0) {
+                log_error_errno(fd, "Failed to open %s: %m", vc);
+                return EXIT_FAILURE;
+        }
+
+        if (!is_vconsole(fd)) {
+                log_error("Device %s is not a virtual console.", vc);
+                return EXIT_FAILURE;
+        }
+
+        utf8 = is_locale_utf8();
+
+        r = parse_env_file("/etc/vconsole.conf", NEWLINE,
+                           "KEYMAP", &vc_keymap,
+                           "KEYMAP_TOGGLE", &vc_keymap_toggle,
+                           "FONT", &vc_font,
+                           "FONT_MAP", &vc_font_map,
+                           "FONT_UNIMAP", &vc_font_unimap,
+                           NULL);
+
+        if (r < 0 && r != -ENOENT)
+                log_warning_errno(r, "Failed to read /etc/vconsole.conf: %m");
+
+        /* Let the kernel command line override /etc/vconsole.conf */
+        if (detect_container() <= 0) {
+                r = parse_env_file("/proc/cmdline", WHITESPACE,
+                                   "vconsole.keymap", &vc_keymap,
+                                   "vconsole.keymap.toggle", &vc_keymap_toggle,
+                                   "vconsole.font", &vc_font,
+                                   "vconsole.font.map", &vc_font_map,
+                                   "vconsole.font.unimap", &vc_font_unimap,
+                                   NULL);
+
+                if (r < 0 && r != -ENOENT)
+                        log_warning_errno(r, "Failed to read /proc/cmdline: %m");
+        }
+
+        if (utf8)
+                (void) enable_utf8(fd);
+        else
+                (void) disable_utf8(fd);
+
+        font_ok = font_load_and_wait(vc, vc_font, vc_font_map, vc_font_unimap) > 0;
+        keyboard_ok = keyboard_load_and_wait(vc, vc_keymap, vc_keymap_toggle, utf8) > 0;
+
+        /* Only copy the font when we executed setfont successfully */
+        if (font_copy && font_ok)
+                (void) font_copy_to_all_vcs(fd);
+
+        return font_ok && keyboard_ok ? EXIT_SUCCESS : EXIT_FAILURE;
+}