Commit Graph
7 Commits
Author SHA1 Message Date
Nathaniel Chen 8dfb6e718d Dynamically allocate bootchart logs
Instead of storing bootchart sample data in arrays, this patch moves
storage to linked lists so that there is no more limit on samples.

This patch also fixes parsing of /proc/<pid>/smaps in kernels > 3.7.
2013-05-02 09:23:01 -07:00
Nathaniel Chen 8368868452 Add help option to bootchart man page
Bootchart has a help option. For the sake of consistency, this patch
adds it to the man page.

Also, the TODO is updated. Bootcharts were added to the journal in
commit c4d58b0.
2013-05-02 09:21:23 -07:00
Nathaniel Chen abbacb1def smack-setup: enable Smack/CIPSO mapping
CIPSO is the Common IP Security Option, an IETF standard for setting
security levels for a process sending packets. In Smack kernels,
CIPSO headers are mapped to Smack labels automatically, but can be changed.

This patch writes label/category mappings from /etc/smack/cipso/ to
/sys/fs/smackfs/cipso2. The mapping format is "%s%4d%4d"["%4d"]...

For more information about Smack and CIPSO, see:
  https://kernel.org/doc/Documentation/security/Smack.txt
2013-03-15 22:56:40 -04:00
Nathaniel Chen 0ea9530d40 bootchart: use _cleanup_close_
use _cleanup_{close_,fclose_} to close streams and file descriptors
2013-03-07 20:53:14 +01:00
Nathaniel Chen ffbd2c4d45 core: mount and initialize Smack
SMACK is the Simple Mandatory Access Control Kernel, a minimal
approach to Access Control implemented as a kernel LSM.

The kernel exposes the smackfs filesystem API through which access
rules can be loaded. At boot time, we want to load the access rules
as early as possible to ensure all early boot steps are checked by Smack.

This patch mounts smackfs at the new location at /sys/fs/smackfs for
kernels 3.8 and above. The /smack mountpoint is not supported.
After mounting smackfs, rules are loaded from the usual location.

For more information about Smack see:
  http://www.kernel.org/doc/Documentation/security/Smack.txt
2013-03-07 20:53:14 +01:00
Nathaniel Chen 8f838d8aab core: move mount_setup_early() to main.c
move mount_setup_early() call to main.c, before security module setup,
so there are no more repeat calls.
2013-03-07 20:53:14 +01:00
Nathaniel Chen ebe5d6d0d0 hostnamed: allow more special characters in pretty hostname
this addresses the bug at:
  https://bugs.freedesktop.org/show_bug.cgi?id=59311
  https://bugzilla.redhat.com/show_bug.cgi?id=895299

hostnamectl is supposed to allow a range of special characters for
the 'pretty' hostname:
  $ hostnamectl set-hostname --pretty "Nathaniels Desktop !@#$%"
..however, it rejects apostrophes, double quotes, and backslashes.
The manual for hostnamectl suggests that this should be allowed.

It makes sense to reject \0, \n, etc. pretty_string_is_safe() is
the same as string_is_safe(), but allows more special characters.
2013-03-05 20:54:05 +01:00