106 lines
3.4 KiB
Diff
106 lines
3.4 KiB
Diff
diff --git a/hw/xfree86/os-support/linux/lnx_init.c b/hw/xfree86/os-support/linux/lnx_init.c
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index 7f40857..cf58c01 100644
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--- a/hw/xfree86/os-support/linux/lnx_init.c
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+++ b/hw/xfree86/os-support/linux/lnx_init.c
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@@ -49,6 +49,7 @@ static Bool KeepTty = FALSE;
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static int VTnum = -1;
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static Bool VTSwitch = TRUE;
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static Bool ShareVTs = FALSE;
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+Bool NoHwAccess = FALSE;
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static int activeVT = -1;
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static int vtPermSave[4];
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@@ -80,9 +81,11 @@ saveVtPerms(void)
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static void
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restoreVtPerms(void)
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{
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- /* Set the terminal permissions back to before we started. */
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- chown("/dev/tty0", vtPermSave[0], vtPermSave[1]);
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- chown(vtname, vtPermSave[2], vtPermSave[3]);
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+ if (geteuid() == 0) {
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+ /* Set the terminal permissions back to before we started. */
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+ (void)chown("/dev/tty0", vtPermSave[0], vtPermSave[1]);
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+ (void)chown(vtname, vtPermSave[2], vtPermSave[3]);
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+ }
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}
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static void *console_handler;
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@@ -210,20 +213,22 @@ xf86OpenConsole(void)
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xf86Msg(X_WARNING,
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"xf86OpenConsole: Could not save ownership of VT\n");
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- /* change ownership of the vt */
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- if (chown(vtname, getuid(), getgid()) < 0)
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- xf86Msg(X_WARNING,"xf86OpenConsole: chown %s failed: %s\n",
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- vtname, strerror(errno));
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-
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- /*
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- * the current VT device we're running on is not "console", we want
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- * to grab all consoles too
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- *
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- * Why is this needed??
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- */
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- if (chown("/dev/tty0", getuid(), getgid()) < 0)
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- xf86Msg(X_WARNING,"xf86OpenConsole: chown /dev/tty0 failed: %s\n",
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- strerror(errno));
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+ if (geteuid() == 0) {
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+ /* change ownership of the vt */
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+ if (chown(vtname, getuid(), getgid()) < 0)
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+ xf86Msg(X_WARNING,"xf86OpenConsole: chown %s failed: %s\n",
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+ vtname, strerror(errno));
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+
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+ /*
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+ * the current VT device we're running on is not
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+ * "console", we want to grab all consoles too
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+ *
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+ * Why is this needed??
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+ */
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+ if (chown("/dev/tty0", getuid(), getgid()) < 0)
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+ xf86Msg(X_WARNING,"xf86OpenConsole: chown /dev/tty0 failed: %s\n",
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+ strerror(errno));
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+ }
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}
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/*
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@@ -433,6 +438,11 @@ xf86ProcessArgument(int argc, char *argv[], int i)
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ShareVTs = TRUE;
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return(1);
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}
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+ if (!strcmp(argv[i], "-nohwaccess"))
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+ {
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+ NoHwAccess = TRUE;
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+ return(1);
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+ }
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if ((argv[i][0] == 'v') && (argv[i][1] == 't'))
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{
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if (sscanf(argv[i], "vt%2d", &VTnum) == 0)
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@@ -454,5 +464,6 @@ xf86UseMsg()
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ErrorF("don't detach controlling tty (for debugging only)\n");
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ErrorF("-novtswitch don't immediately switch to new VT\n");
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ErrorF("-sharevts share VTs with another X server\n");
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+ ErrorF("-nohwaccess don't access hardware ports directly\n");
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return;
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}
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diff --git a/hw/xfree86/os-support/linux/lnx_video.c b/hw/xfree86/os-support/linux/lnx_video.c
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index 688106a..34a845b 100644
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--- a/hw/xfree86/os-support/linux/lnx_video.c
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+++ b/hw/xfree86/os-support/linux/lnx_video.c
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@@ -51,6 +51,7 @@
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#define MAP_FAILED ((void *)-1)
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#endif
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+extern Bool NoHwAccess;
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static Bool ExtendedEnabled = FALSE;
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#ifdef __ia64__
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@@ -509,6 +510,9 @@ xf86EnableIO(void)
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int fd;
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unsigned int ioBase_phys;
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#endif
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+ /* Fake it... */
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+ if (NoHwAccess)
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+ return TRUE;
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if (ExtendedEnabled)
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return TRUE;
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