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qubes-linux-kernel/patches.fixes/tiocgdev
Joanna Rutkowska d1298d1dfb Keeps patches unpacked for easier history browsing
2010-07-07 13:12:45 +02:00

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Subject: tiocgdev ioctl
Patch-mainline: never, lkml guys don't like it
From: kraxel@suse.de
add tty ioctl to figure physical device of the console.
arch/alpha/include/asm/ioctls.h | 1 +
arch/arm/include/asm/ioctls.h | 1 +
arch/ia64/include/asm/ioctls.h | 1 +
arch/m68k/include/asm/ioctls.h | 1 +
arch/mips/include/asm/ioctls.h | 1 +
arch/powerpc/include/asm/ioctls.h | 1 +
arch/s390/include/asm/ioctls.h | 1 +
arch/sh/include/asm/ioctls.h | 1 +
arch/sparc/include/asm/ioctls.h | 1 +
drivers/char/tty_io.c | 15 +++++++++++++++
fs/compat_ioctl.c | 1 +
include/asm-generic/ioctls.h | 1 +
12 files changed, 26 insertions(+)
--- a/arch/alpha/include/asm/ioctls.h
+++ b/arch/alpha/include/asm/ioctls.h
@@ -91,6 +91,7 @@
#define TIOCGSID 0x5429 /* Return the session ID of FD */
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
#define TIOCSERCONFIG 0x5453
#define TIOCSERGWILD 0x5454
--- a/arch/arm/include/asm/ioctls.h
+++ b/arch/arm/include/asm/ioctls.h
@@ -52,6 +52,7 @@
#define TCSETSF2 _IOW('T',0x2D, struct termios2)
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
#define FIOCLEX 0x5451
--- a/arch/ia64/include/asm/ioctls.h
+++ b/arch/ia64/include/asm/ioctls.h
@@ -59,6 +59,7 @@
#define TCSETSF2 _IOW('T',0x2D, struct termios2)
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
#define FIOCLEX 0x5451
--- a/arch/m68k/include/asm/ioctls.h
+++ b/arch/m68k/include/asm/ioctls.h
@@ -52,6 +52,7 @@
#define TCSETSF2 _IOW('T',0x2D, struct termios2)
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
#define FIOCLEX 0x5451
--- a/arch/mips/include/asm/ioctls.h
+++ b/arch/mips/include/asm/ioctls.h
@@ -83,6 +83,7 @@
#define TCSETSF2 _IOW('T', 0x2D, struct termios2)
#define TIOCGPTN _IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T', 0x32, unsigned int) /* Get real dev no below /dev/console */
/* I hope the range from 0x5480 on is free ... */
#define TIOCSCTTY 0x5480 /* become controlling tty */
--- a/arch/powerpc/include/asm/ioctls.h
+++ b/arch/powerpc/include/asm/ioctls.h
@@ -93,6 +93,7 @@
#define TIOCSRS485 0x542f
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
#define TIOCSERCONFIG 0x5453
#define TIOCSERGWILD 0x5454
--- a/arch/s390/include/asm/ioctls.h
+++ b/arch/s390/include/asm/ioctls.h
@@ -60,6 +60,7 @@
#define TCSETSF2 _IOW('T',0x2D, struct termios2)
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
#define FIOCLEX 0x5451
--- a/arch/sh/include/asm/ioctls.h
+++ b/arch/sh/include/asm/ioctls.h
@@ -84,6 +84,7 @@
#define TCSETSF2 _IOW('T', 45, struct termios2)
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
#define TIOCSERCONFIG _IO('T', 83) /* 0x5453 */
#define TIOCSERGWILD _IOR('T', 84, int) /* 0x5454 */
--- a/arch/sparc/include/asm/ioctls.h
+++ b/arch/sparc/include/asm/ioctls.h
@@ -19,6 +19,7 @@
#define TCSETS2 _IOW('T', 13, struct termios2)
#define TCSETSW2 _IOW('T', 14, struct termios2)
#define TCSETSF2 _IOW('T', 15, struct termios2)
+#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get real dev no below /dev/console */
/* Note that all the ioctls that are not available in Linux have a
* double underscore on the front to: a) avoid some programs to
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2546,6 +2546,21 @@ long tty_ioctl(struct file *file, unsign
case TIOCSETD:
return tiocsetd(tty, p);
/*
+ * Without the real device to which /dev/console is connected,
+ * blogd can not work.
+ * blogd spawns a pty/tty pair,
+ * set /dev/console to the tty of that pair (ioctl TIOCCONS),
+ * then reads in all input from the current /dev/console,
+ * buffer or write the readed data to /var/log/boot.msg
+ * _and_ to the original real device.
+ */
+ case TIOCGDEV:
+ {
+ unsigned int ret = new_encode_dev(tty_devnum(real_tty));
+ return put_user(ret, (unsigned int __user *)p);
+ }
+
+ /*
* Break handling
*/
case TIOCSBRK: /* Turn break on, unconditionally */
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -941,6 +941,7 @@ COMPATIBLE_IOCTL(TCSETSW)
COMPATIBLE_IOCTL(TCSETSF)
COMPATIBLE_IOCTL(TIOCLINUX)
COMPATIBLE_IOCTL(TIOCSBRK)
+COMPATIBLE_IOCTL(TIOCGDEV)
COMPATIBLE_IOCTL(TIOCCBRK)
COMPATIBLE_IOCTL(TIOCGSID)
COMPATIBLE_IOCTL(TIOCGICOUNT)
--- a/include/asm-generic/ioctls.h
+++ b/include/asm-generic/ioctls.h
@@ -65,6 +65,7 @@
#define TIOCSRS485 0x542F
#define TIOCGPTN _IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
+#define TIOCGDEV _IOR('T', 0x32, unsigned int) /* Get real dev no below /dev/console */
#define TCGETX 0x5432 /* SYS5 TCGETX compatibility */
#define TCSETX 0x5433
#define TCSETXF 0x5434
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