diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support')
| -rw-r--r-- | xorg-server/hw/xfree86/os-support/linux/lnx_init.c | 675 |
1 files changed, 345 insertions, 330 deletions
diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_init.c b/xorg-server/hw/xfree86/os-support/linux/lnx_init.c index d1f29d909..77dfb2f16 100644 --- a/xorg-server/hw/xfree86/os-support/linux/lnx_init.c +++ b/xorg-server/hw/xfree86/os-support/linux/lnx_init.c @@ -1,330 +1,345 @@ -/*
- * Copyright 1992 by Orest Zborowski <obz@Kodak.com>
- * Copyright 1993 by David Wexelblat <dwex@goblin.org>
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the names of Orest Zborowski and David Wexelblat
- * not be used in advertising or publicity pertaining to distribution of
- * the software without specific, written prior permission. Orest Zborowski
- * and David Wexelblat make no representations about the suitability of this
- * software for any purpose. It is provided "as is" without express or
- * implied warranty.
- *
- * OREST ZBOROWSKI AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD
- * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT BE LIABLE
- * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xmd.h>
-
-#include "compiler.h"
-
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-
-#include <sys/stat.h>
-
-static Bool KeepTty = FALSE;
-static Bool VTSwitch = TRUE;
-static Bool ShareVTs = FALSE;
-static int activeVT = -1;
-
-static char vtname[11];
-static struct termios tty_attr; /* tty state to restore */
-static int tty_mode; /* kbd mode to restore */
-
-static void *console_handler;
-
-static void
-drain_console(int fd, void *closure)
-{
- errno = 0;
- if (tcflush(fd, TCIOFLUSH) == -1 && errno == EIO) {
- xf86RemoveGeneralHandler(console_handler);
- console_handler = NULL;
- }
-}
-
-static void
-switch_to(int vt, const char *from)
-{
- if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, vt) < 0)
- FatalError("%s: VT_ACTIVATE failed: %s\n", from, strerror(errno));
-
- if (ioctl(xf86Info.consoleFd, VT_WAITACTIVE, vt) < 0)
- FatalError("%s: VT_WAITACTIVE failed: %s\n", from, strerror(errno));
-}
-
-void
-xf86OpenConsole(void)
-{
- int i, fd = -1;
- struct vt_mode VT;
- struct vt_stat vts;
- MessageType from = X_PROBED;
- char *tty0[] = { "/dev/tty0", "/dev/vc/0", NULL };
- char *vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL };
-
- if (serverGeneration == 1) {
-
- /* when KeepTty check if we're run with euid==0 */
- if (KeepTty && geteuid() != 0)
- FatalError("xf86OpenConsole:"
- " Server must be suid root for option \"KeepTTY\"\n");
-
- /*
- * setup the virtual terminal manager
- */
- if (xf86Info.vtno != -1) {
- from = X_CMDLINE;
- } else {
-
- i=0;
- while (tty0[i] != NULL) {
- if ((fd = open(tty0[i],O_WRONLY,0)) >= 0)
- break;
- i++;
- }
-
- if (fd < 0)
- FatalError(
- "xf86OpenConsole: Cannot open /dev/tty0 (%s)\n",
- strerror(errno));
-
- if (ShareVTs)
- {
- if (ioctl(fd, VT_GETSTATE, &vts) == 0)
- xf86Info.vtno = vts.v_active;
- else
- FatalError("xf86OpenConsole: Cannot find the current"
- " VT (%s)\n", strerror(errno));
- } else {
- if ((ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0) ||
- (xf86Info.vtno == -1))
- FatalError("xf86OpenConsole: Cannot find a free VT: %s\n",
- strerror(errno));
- }
- close(fd);
- }
-
- xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
-
- if (!KeepTty) {
- pid_t ppid = getppid();
- pid_t ppgid;
- ppgid = getpgid(ppid);
-
- /*
- * change to parent process group that pgid != pid so
- * that setsid() doesn't fail and we become process
- * group leader
- */
- if (setpgid(0,ppgid) < 0)
- xf86Msg(X_WARNING, "xf86OpenConsole: setpgid failed: %s\n",
- strerror(errno));
-
- /* become process group leader */
- if ((setsid() < 0))
- xf86Msg(X_WARNING, "xf86OpenConsole: setsid failed: %s\n",
- strerror(errno));
- }
-
- i=0;
- while (vcs[i] != NULL) {
- sprintf(vtname, vcs[i], xf86Info.vtno); /* /dev/tty1-64 */
- if ((xf86Info.consoleFd = open(vtname, O_RDWR|O_NDELAY, 0)) >= 0)
- break;
- i++;
- }
-
- if (xf86Info.consoleFd < 0)
- FatalError("xf86OpenConsole: Cannot open virtual console"
- " %d (%s)\n", xf86Info.vtno, strerror(errno));
-
- /*
- * Linux doesn't switch to an active vt after the last close of a vt,
- * so we do this ourselves by remembering which is active now.
- */
- if (ioctl(xf86Info.consoleFd, VT_GETSTATE, &vts) < 0)
- xf86Msg(X_WARNING,"xf86OpenConsole: VT_GETSTATE failed: %s\n",
- strerror(errno));
- else
- activeVT = vts.v_active;
-
-#if 0
- if (!KeepTty) {
- /*
- * Detach from the controlling tty to avoid char loss
- */
- if ((i = open("/dev/tty",O_RDWR)) >= 0) {
- ioctl(i, TIOCNOTTY, 0);
- close(i);
- }
- }
-#endif
-
- if (!ShareVTs)
- {
- struct termios nTty;
-
- /*
- * now get the VT. This _must_ succeed, or else fail completely.
- */
- switch_to(xf86Info.vtno, "xf86OpenConsole");
-
- if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0)
- FatalError("xf86OpenConsole: VT_GETMODE failed %s\n",
- strerror(errno));
-
- signal(SIGUSR1, xf86VTRequest);
-
- VT.mode = VT_PROCESS;
- VT.relsig = SIGUSR1;
- VT.acqsig = SIGUSR1;
-
- if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0)
- FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed: %s\n",
- strerror(errno));
-
- if (ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS) < 0)
- FatalError("xf86OpenConsole: KDSETMODE KD_GRAPHICS failed %s\n",
- strerror(errno));
-
- tcgetattr(xf86Info.consoleFd, &tty_attr);
- ioctl(xf86Info.consoleFd, KDGKBMODE, &tty_mode);
-
- if (ioctl(xf86Info.consoleFd, KDSKBMODE, K_RAW) < 0)
- FatalError("xf86OpenConsole: KDSKBMODE K_RAW failed %s\n",
- strerror(errno));
-
- nTty = tty_attr;
- nTty.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP);
- nTty.c_oflag = 0;
- nTty.c_cflag = CREAD | CS8;
- nTty.c_lflag = 0;
- nTty.c_cc[VTIME]=0;
- nTty.c_cc[VMIN]=1;
- cfsetispeed(&nTty, 9600);
- cfsetospeed(&nTty, 9600);
- tcsetattr(xf86Info.consoleFd, TCSANOW, &nTty);
-
- /* need to keep the buffer clean, else the kernel gets angry */
- xf86SetConsoleHandler(drain_console, NULL);
-
- /* we really should have a InitOSInputDevices() function instead
- * of Init?$#*&Device(). So I just place it here */
- }
- } else { /* serverGeneration != 1 */
- if (!ShareVTs && VTSwitch)
- {
- /* now get the VT */
- switch_to(xf86Info.vtno, "xf86OpenConsole");
- }
- }
-}
-
-void
-xf86CloseConsole(void)
-{
- struct vt_mode VT;
-
- if (ShareVTs) {
- close(xf86Info.consoleFd);
- return;
- }
-
- if (console_handler) {
- xf86RemoveGeneralHandler(console_handler);
- console_handler = NULL;
- };
-
- /* Back to text mode ... */
- if (ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT) < 0)
- xf86Msg(X_WARNING, "xf86CloseConsole: KDSETMODE failed: %s\n",
- strerror(errno));
-
- ioctl(xf86Info.consoleFd, KDSKBMODE, tty_mode);
- tcsetattr(xf86Info.consoleFd, TCSANOW, &tty_attr);
-
- if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0)
- xf86Msg(X_WARNING, "xf86CloseConsole: VT_GETMODE failed: %s\n",
- strerror(errno));
- else {
- /* set dflt vt handling */
- VT.mode = VT_AUTO;
- if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0)
- xf86Msg(X_WARNING, "xf86CloseConsole: VT_SETMODE failed: %s\n",
- strerror(errno));
- }
-
- if (VTSwitch)
- {
- /*
- * Perform a switch back to the active VT when we were started
- */
- if (activeVT >= 0) {
- switch_to(activeVT, "xf86CloseConsole");
- activeVT = -1;
- }
- }
- close(xf86Info.consoleFd); /* make the vt-manager happy */
-}
-
-int
-xf86ProcessArgument(int argc, char *argv[], int i)
-{
- /*
- * Keep server from detaching from controlling tty. This is useful
- * when debugging (so the server can receive keyboard signals.
- */
- if (!strcmp(argv[i], "-keeptty"))
- {
- KeepTty = TRUE;
- return 1;
- }
- if (!strcmp(argv[i], "-novtswitch"))
- {
- VTSwitch = FALSE;
- return 1;
- }
- if (!strcmp(argv[i], "-sharevts"))
- {
- ShareVTs = TRUE;
- return 1;
- }
- if ((argv[i][0] == 'v') && (argv[i][1] == 't'))
- {
- if (sscanf(argv[i], "vt%2d", &xf86Info.vtno) == 0)
- {
- UseMsg();
- xf86Info.vtno = -1;
- return 0;
- }
- return 1;
- }
- return 0;
-}
-
-void
-xf86UseMsg(void)
-{
- ErrorF("vtXX use the specified VT number\n");
- ErrorF("-keeptty ");
- ErrorF("don't detach controlling tty (for debugging only)\n");
- ErrorF("-novtswitch don't immediately switch to new VT\n");
- ErrorF("-sharevts share VTs with another X server\n");
-}
+/* + * Copyright 1992 by Orest Zborowski <obz@Kodak.com> + * Copyright 1993 by David Wexelblat <dwex@goblin.org> + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the names of Orest Zborowski and David Wexelblat + * not be used in advertising or publicity pertaining to distribution of + * the software without specific, written prior permission. Orest Zborowski + * and David Wexelblat make no representations about the suitability of this + * software for any purpose. It is provided "as is" without express or + * implied warranty. + * + * OREST ZBOROWSKI AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD + * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT BE LIABLE + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xmd.h> + +#include "compiler.h" + +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" + +#include <sys/stat.h> + +static Bool KeepTty = FALSE; +static Bool VTSwitch = TRUE; +static Bool ShareVTs = FALSE; +static int activeVT = -1; + +static char vtname[11]; +static struct termios tty_attr; /* tty state to restore */ +static int tty_mode; /* kbd mode to restore */ + +static void *console_handler; + +static void +drain_console(int fd, void *closure) +{ + errno = 0; + if (tcflush(fd, TCIOFLUSH) == -1 && errno == EIO) { + xf86RemoveGeneralHandler(console_handler); + console_handler = NULL; + } +} + +static void +switch_to(int vt, const char *from) +{ + int ret; + + SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_ACTIVATE, vt)); + if (ret < 0) + FatalError("%s: VT_ACTIVATE failed: %s\n", from, strerror(errno)); + + SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_WAITACTIVE, vt)); + if (ret < 0) + FatalError("%s: VT_WAITACTIVE failed: %s\n", from, strerror(errno)); +} + +void +xf86OpenConsole(void) +{ + int i, fd = -1, ret; + struct vt_mode VT; + struct vt_stat vts; + MessageType from = X_PROBED; + char *tty0[] = { "/dev/tty0", "/dev/vc/0", NULL }; + char *vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL }; + + if (serverGeneration == 1) { + + /* when KeepTty check if we're run with euid==0 */ + if (KeepTty && geteuid() != 0) + FatalError("xf86OpenConsole:" + " Server must be suid root for option \"KeepTTY\"\n"); + + /* + * setup the virtual terminal manager + */ + if (xf86Info.vtno != -1) { + from = X_CMDLINE; + } else { + + i=0; + while (tty0[i] != NULL) { + if ((fd = open(tty0[i],O_WRONLY,0)) >= 0) + break; + i++; + } + + if (fd < 0) + FatalError( + "xf86OpenConsole: Cannot open /dev/tty0 (%s)\n", + strerror(errno)); + + if (ShareVTs) + { + SYSCALL(ret = ioctl(fd, VT_GETSTATE, &vts)); + if (ret < 0) + FatalError("xf86OpenConsole: Cannot find the current" + " VT (%s)\n", strerror(errno)); + xf86Info.vtno = vts.v_active; + } else { + SYSCALL(ret = ioctl(fd, VT_OPENQRY, &xf86Info.vtno)); + if (ret < 0) + FatalError("xf86OpenConsole: Cannot find a free VT: " + "%s\n", strerror(errno)); + if (xf86Info.vtno == -1) + FatalError("xf86OpenConsole: Cannot find a free VT\n"); + } + close(fd); + } + + xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno); + + if (!KeepTty) { + pid_t ppid = getppid(); + pid_t ppgid; + ppgid = getpgid(ppid); + + /* + * change to parent process group that pgid != pid so + * that setsid() doesn't fail and we become process + * group leader + */ + if (setpgid(0,ppgid) < 0) + xf86Msg(X_WARNING, "xf86OpenConsole: setpgid failed: %s\n", + strerror(errno)); + + /* become process group leader */ + if ((setsid() < 0)) + xf86Msg(X_WARNING, "xf86OpenConsole: setsid failed: %s\n", + strerror(errno)); + } + + i=0; + while (vcs[i] != NULL) { + sprintf(vtname, vcs[i], xf86Info.vtno); /* /dev/tty1-64 */ + if ((xf86Info.consoleFd = open(vtname, O_RDWR|O_NDELAY, 0)) >= 0) + break; + i++; + } + + if (xf86Info.consoleFd < 0) + FatalError("xf86OpenConsole: Cannot open virtual console" + " %d (%s)\n", xf86Info.vtno, strerror(errno)); + + /* + * Linux doesn't switch to an active vt after the last close of a vt, + * so we do this ourselves by remembering which is active now. + */ + SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETSTATE, &vts)); + if (ret < 0) + xf86Msg(X_WARNING,"xf86OpenConsole: VT_GETSTATE failed: %s\n", + strerror(errno)); + else + activeVT = vts.v_active; + +#if 0 + if (!KeepTty) { + /* + * Detach from the controlling tty to avoid char loss + */ + if ((i = open("/dev/tty",O_RDWR)) >= 0) { + SYSCALL(ioctl(i, TIOCNOTTY, 0)); + close(i); + } + } +#endif + + if (!ShareVTs) + { + struct termios nTty; + + /* + * now get the VT. This _must_ succeed, or else fail completely. + */ + switch_to(xf86Info.vtno, "xf86OpenConsole"); + + SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETMODE, &VT)); + if (ret < 0) + FatalError("xf86OpenConsole: VT_GETMODE failed %s\n", + strerror(errno)); + + signal(SIGUSR1, xf86VTRequest); + + VT.mode = VT_PROCESS; + VT.relsig = SIGUSR1; + VT.acqsig = SIGUSR1; + + SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_SETMODE, &VT)); + if (ret < 0) + FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed: %s\n", + strerror(errno)); + + SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS)); + if (ret < 0) + FatalError("xf86OpenConsole: KDSETMODE KD_GRAPHICS failed %s\n", + strerror(errno)); + + tcgetattr(xf86Info.consoleFd, &tty_attr); + SYSCALL(ioctl(xf86Info.consoleFd, KDGKBMODE, &tty_mode)); + + SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMODE, K_RAW)); + if (ret < 0) + FatalError("xf86OpenConsole: KDSKBMODE K_RAW failed %s\n", + strerror(errno)); + + nTty = tty_attr; + nTty.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP); + nTty.c_oflag = 0; + nTty.c_cflag = CREAD | CS8; + nTty.c_lflag = 0; + nTty.c_cc[VTIME]=0; + nTty.c_cc[VMIN]=1; + cfsetispeed(&nTty, 9600); + cfsetospeed(&nTty, 9600); + tcsetattr(xf86Info.consoleFd, TCSANOW, &nTty); + + /* need to keep the buffer clean, else the kernel gets angry */ + xf86SetConsoleHandler(drain_console, NULL); + + /* we really should have a InitOSInputDevices() function instead + * of Init?$#*&Device(). So I just place it here */ + } + } else { /* serverGeneration != 1 */ + if (!ShareVTs && VTSwitch) + { + /* now get the VT */ + switch_to(xf86Info.vtno, "xf86OpenConsole"); + } + } +} + +void +xf86CloseConsole(void) +{ + struct vt_mode VT; + int ret; + + if (ShareVTs) { + close(xf86Info.consoleFd); + return; + } + + if (console_handler) { + xf86RemoveGeneralHandler(console_handler); + console_handler = NULL; + }; + + /* Back to text mode ... */ + SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT)); + if (ret < 0) + xf86Msg(X_WARNING, "xf86CloseConsole: KDSETMODE failed: %s\n", + strerror(errno)); + + SYSCALL(ioctl(xf86Info.consoleFd, KDSKBMODE, tty_mode)); + tcsetattr(xf86Info.consoleFd, TCSANOW, &tty_attr); + + SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETMODE, &VT)); + if (ret < 0) + xf86Msg(X_WARNING, "xf86CloseConsole: VT_GETMODE failed: %s\n", + strerror(errno)); + else { + /* set dflt vt handling */ + VT.mode = VT_AUTO; + SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_SETMODE, &VT)); + if (ret < 0) + xf86Msg(X_WARNING, "xf86CloseConsole: VT_SETMODE failed: %s\n", + strerror(errno)); + } + + if (VTSwitch) + { + /* + * Perform a switch back to the active VT when we were started + */ + if (activeVT >= 0) { + switch_to(activeVT, "xf86CloseConsole"); + activeVT = -1; + } + } + close(xf86Info.consoleFd); /* make the vt-manager happy */ +} + +int +xf86ProcessArgument(int argc, char *argv[], int i) +{ + /* + * Keep server from detaching from controlling tty. This is useful + * when debugging (so the server can receive keyboard signals. + */ + if (!strcmp(argv[i], "-keeptty")) + { + KeepTty = TRUE; + return 1; + } + if (!strcmp(argv[i], "-novtswitch")) + { + VTSwitch = FALSE; + return 1; + } + if (!strcmp(argv[i], "-sharevts")) + { + ShareVTs = TRUE; + return 1; + } + if ((argv[i][0] == 'v') && (argv[i][1] == 't')) + { + if (sscanf(argv[i], "vt%2d", &xf86Info.vtno) == 0) + { + UseMsg(); + xf86Info.vtno = -1; + return 0; + } + return 1; + } + return 0; +} + +void +xf86UseMsg(void) +{ + ErrorF("vtXX use the specified VT number\n"); + ErrorF("-keeptty "); + ErrorF("don't detach controlling tty (for debugging only)\n"); + ErrorF("-novtswitch don't immediately switch to new VT\n"); + ErrorF("-sharevts share VTs with another X server\n"); +} |