[Xen-changelog] Add legacy pty support to domu config.

[BitKeeper Bot <riel@xxxxxxxxxxx>]

ChangeSet 1.1159.256.113, 2005/05/07 10:43:57+01:00, kaf24@xxxxxxxxxxxxxxxxxxxx

        Add legacy pty support to domu config.
        Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>



 Kconfig.drivers        |   37 +++++++++++++++++++++++++++++++++++++
 configs/xenU_defconfig |    6 ++++++
 2 files changed, 43 insertions(+)


diff -Nru a/linux-2.6.11-xen-sparse/arch/xen/Kconfig.drivers 
b/linux-2.6.11-xen-sparse/arch/xen/Kconfig.drivers
--- a/linux-2.6.11-xen-sparse/arch/xen/Kconfig.drivers  2005-05-07 06:04:24 
-04:00
+++ b/linux-2.6.11-xen-sparse/arch/xen/Kconfig.drivers  2005-05-07 06:04:24 
-04:00
@@ -49,9 +49,46 @@
 endif
 
 if !XEN_PHYSDEV_ACCESS
+
+menu "Character devices"
+
 config UNIX98_PTYS
        bool
        default y
+
+config LEGACY_PTYS
+       bool "Legacy (BSD) PTY support"
+       default y
+       ---help---
+         A pseudo terminal (PTY) is a software device consisting of two
+         halves: a master and a slave. The slave device behaves identical to
+         a physical terminal; the master device is used by a process to
+         read data from and write data to the slave, thereby emulating a
+         terminal. Typical programs for the master side are telnet servers
+         and xterms.
+
+         Linux has traditionally used the BSD-like names /dev/ptyxx
+         for masters and /dev/ttyxx for slaves of pseudo
+         terminals. This scheme has a number of problems, including
+         security.  This option enables these legacy devices; on most
+         systems, it is safe to say N.
+
+
+config LEGACY_PTY_COUNT
+       int "Maximum number of legacy PTY in use"
+       depends on LEGACY_PTYS
+       range 1 256
+       default "256"
+       ---help---
+         The maximum number of legacy PTYs that can be used at any one time.
+         The default is 256, and should be more than enough.  Embedded
+         systems may want to reduce this to save memory.
+
+         When not in use, each legacy PTY occupies 12 bytes on 32-bit
+         architectures and 24 bytes on 64-bit architectures.
+
+endmenu
+
 endif
 
 endmenu
diff -Nru a/linux-2.6.11-xen-sparse/arch/xen/configs/xenU_defconfig 
b/linux-2.6.11-xen-sparse/arch/xen/configs/xenU_defconfig
--- a/linux-2.6.11-xen-sparse/arch/xen/configs/xenU_defconfig   2005-05-07 
06:04:24 -04:00
+++ b/linux-2.6.11-xen-sparse/arch/xen/configs/xenU_defconfig   2005-05-07 
06:04:24 -04:00
@@ -331,6 +331,12 @@
 # CONFIG_SHAPER is not set
 # CONFIG_NETCONSOLE is not set
 CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+
+#
+# Character devices
+#
 
 #
 # File systems

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