| commit | fda9d7927d5b74c2012759fea990a5cd57658131 | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Tue, 26 May 2015 20:01:25 +0000 (26 13:01 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Tue, 26 May 2015 20:11:34 +0000 (26 13:11 -0700) | ||
| tree | 025dfcc63e9a3a02e7c57d03e8f7e10e4e7d02a8 | treesnapshot (tar.gz zip) |
| parent | 0d20b83737d5944e98a5f2b56e910cf0baf901d5 | commitdiff |
ttys - Add 'ifconsole' option to ttys entries
* Add the 'ifconsole' option. This allows you to construct a line as shown
below to enable a getty (e.g. on a serial port) only if the tty is the
system console.
ttyd0 "/usr/libexec/getty std.9600" dialup on secure ifconsole
The ifconsole option also silently disables any devices which do not
exist, removing unnecessary console spam.
* Modify libc and init to handle the new flag.
* Modify the nrelease build and ttys defaults to use this option for
ttyd0, ttyd1, ttyd2, and ttyd3.
* Avoids previously reported issues with system crashes on certain machines
whos serial ports are not implemented properly without having to fully
disable the default ttyd* getty feature. If the serial port isn't the
console, it won't be enabled.
* Add a sysctl to the kernel which init needs to test whether a tty is the
console or not.
Suggested-by: swildner
* Add the 'ifconsole' option. This allows you to construct a line as shown
below to enable a getty (e.g. on a serial port) only if the tty is the
system console.
ttyd0 "/usr/libexec/getty std.9600" dialup on secure ifconsole
The ifconsole option also silently disables any devices which do not
exist, removing unnecessary console spam.
* Modify libc and init to handle the new flag.
* Modify the nrelease build and ttys defaults to use this option for
ttyd0, ttyd1, ttyd2, and ttyd3.
* Avoids previously reported issues with system crashes on certain machines
whos serial ports are not implemented properly without having to fully
disable the default ttyd* getty feature. If the serial port isn't the
console, it won't be enabled.
* Add a sysctl to the kernel which init needs to test whether a tty is the
console or not.
Suggested-by: swildner