X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fvt_ioctl.c;h=e6f89e8b9258429fc99754ec492918d94089bcfd;hb=068f4070868c801c7d7aa1ae1193c1c854193545;hp=c6f6f42097391b20f434a669ae6b0f263fda63ee;hpb=31f6e1bd3b58c9a67e5ea0c2d372fbf5fc9e326d;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index c6f6f420973..e6f89e8b925 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -23,6 +23,7 @@
 #include <linux/major.h>
 #include <linux/fs.h>
 #include <linux/console.h>
+#include <linux/consolemap.h>
 #include <linux/signal.h>
 #include <linux/timex.h>
 
@@ -582,10 +583,27 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 	case KDGKBDIACR:
 	{
 		struct kbdiacrs __user *a = up;
+		struct kbdiacr diacr;
+		int i;
 
 		if (put_user(accent_table_size, &a->kb_cnt))
 			return -EFAULT;
-		if (copy_to_user(a->kbdiacr, accent_table, accent_table_size*sizeof(struct kbdiacr)))
+		for (i = 0; i < accent_table_size; i++) {
+			diacr.diacr = conv_uni_to_8bit(accent_table[i].diacr);
+			diacr.base = conv_uni_to_8bit(accent_table[i].base);
+			diacr.result = conv_uni_to_8bit(accent_table[i].result);
+			if (copy_to_user(a->kbdiacr + i, &diacr, sizeof(struct kbdiacr)))
+				return -EFAULT;
+		}
+		return 0;
+	}
+	case KDGKBDIACRUC:
+	{
+		struct kbdiacrsuc __user *a = up;
+
+		if (put_user(accent_table_size, &a->kb_cnt))
+			return -EFAULT;
+		if (copy_to_user(a->kbdiacruc, accent_table, accent_table_size*sizeof(struct kbdiacruc)))
 			return -EFAULT;
 		return 0;
 	}
@@ -593,6 +611,30 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 	case KDSKBDIACR:
 	{
 		struct kbdiacrs __user *a = up;
+		struct kbdiacr diacr;
+		unsigned int ct;
+		int i;
+
+		if (!perm)
+			return -EPERM;
+		if (get_user(ct,&a->kb_cnt))
+			return -EFAULT;
+		if (ct >= MAX_DIACR)
+			return -EINVAL;
+		accent_table_size = ct;
+		for (i = 0; i < ct; i++) {
+			if (copy_from_user(&diacr, a->kbdiacr + i, sizeof(struct kbdiacr)))
+				return -EFAULT;
+			accent_table[i].diacr = conv_8bit_to_uni(diacr.diacr);
+			accent_table[i].base = conv_8bit_to_uni(diacr.base);
+			accent_table[i].result = conv_8bit_to_uni(diacr.result);
+		}
+		return 0;
+	}
+
+	case KDSKBDIACRUC:
+	{
+		struct kbdiacrsuc __user *a = up;
 		unsigned int ct;
 
 		if (!perm)
@@ -602,7 +644,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		if (ct >= MAX_DIACR)
 			return -EINVAL;
 		accent_table_size = ct;
-		if (copy_from_user(accent_table, a->kbdiacr, ct*sizeof(struct kbdiacr)))
+		if (copy_from_user(accent_table, a->kbdiacruc, ct*sizeof(struct kbdiacruc)))
 			return -EFAULT;
 		return 0;
 	}
@@ -770,6 +812,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		/*
 		 * Switching-from response
 		 */
+		acquire_console_sem();
 		if (vc->vt_newvt >= 0) {
 			if (arg == 0)
 				/*
@@ -784,7 +827,6 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 				 * complete the switch.
 				 */
 				int newvt;
-				acquire_console_sem();
 				newvt = vc->vt_newvt;
 				vc->vt_newvt = -1;
 				i = vc_allocate(newvt);
@@ -798,7 +840,6 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 				 * other console switches..
 				 */
 				complete_change_console(vc_cons[newvt].d);
-				release_console_sem();
 			}
 		}
 
@@ -810,9 +851,12 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 			/*
 			 * If it's just an ACK, ignore it
 			 */
-			if (arg != VT_ACKACQ)
+			if (arg != VT_ACKACQ) {
+				release_console_sem();
 				return -EINVAL;
+			}
 		}
+		release_console_sem();
 
 		return 0;
 
@@ -845,14 +889,24 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 	case VT_RESIZE:
 	{
 		struct vt_sizes __user *vtsizes = up;
+		struct vc_data *vc;
+
 		ushort ll,cc;
 		if (!perm)
 			return -EPERM;
 		if (get_user(ll, &vtsizes->v_rows) ||
 		    get_user(cc, &vtsizes->v_cols))
 			return -EFAULT;
-		for (i = 0; i < MAX_NR_CONSOLES; i++)
-			vc_lock_resize(vc_cons[i].d, cc, ll);
+
+		for (i = 0; i < MAX_NR_CONSOLES; i++) {
+			vc = vc_cons[i].d;
+
+			if (vc) {
+				vc->vc_resize_user = 1;
+				vc_lock_resize(vc_cons[i].d, cc, ll);
+			}
+		}
+
 		return 0;
 	}
 
@@ -898,6 +952,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 				vc_cons[i].d->vc_scan_lines = vlin;
 			if (clin)
 				vc_cons[i].d->vc_font.height = clin;
+			vc_cons[i].d->vc_resize_user = 1;
 			vc_resize(vc_cons[i].d, cc, ll);
 			release_console_sem();
 		}
@@ -1030,7 +1085,7 @@ static DECLARE_WAIT_QUEUE_HEAD(vt_activate_queue);
 
 /*
  * Sleeps until a vt is activated, or the task is interrupted. Returns
- * 0 if activation, -EINTR if interrupted.
+ * 0 if activation, -EINTR if interrupted by a signal handler.
  */
 int vt_waitactive(int vt)
 {
@@ -1055,7 +1110,7 @@ int vt_waitactive(int vt)
 			break;
 		}
 		release_console_sem();
-		retval = -EINTR;
+		retval = -ERESTARTNOHAND;
 		if (signal_pending(current))
 			break;
 		schedule();
@@ -1070,7 +1125,7 @@ int vt_waitactive(int vt)
 void reset_vc(struct vc_data *vc)
 {
 	vc->vc_mode = KD_TEXT;
-	kbd_table[vc->vc_num].kbdmode = VC_XLATE;
+	kbd_table[vc->vc_num].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE;
 	vc->vt_mode.mode = VT_AUTO;
 	vc->vt_mode.waitv = 0;
 	vc->vt_mode.relsig = 0;
@@ -1208,15 +1263,18 @@ void change_console(struct vc_data *new_vc)
 		/*
 		 * Send the signal as privileged - kill_pid() will
 		 * tell us if the process has gone or something else
-		 * is awry
+		 * is awry.
+		 *
+		 * We need to set vt_newvt *before* sending the signal or we
+		 * have a race.
 		 */
+		vc->vt_newvt = new_vc->vc_num;
 		if (kill_pid(vc->vt_pid, vc->vt_mode.relsig, 1) == 0) {
 			/*
 			 * It worked. Mark the vt to switch to and
 			 * return. The process needs to send us a
 			 * VT_RELDISP ioctl to complete the switch.
 			 */
-			vc->vt_newvt = new_vc->vc_num;
 			return;
 		}