alistair23-linux/security
Tetsuo Handa f23571e866 TOMOYO: Copy directly to userspace buffer.
When userspace program reads policy from /sys/kernel/security/tomoyo/
interface, TOMOYO uses line buffered mode. A line has at least one word.

Commit 006dacc "TOMOYO: Support longer pathname." changed a word's max length
from 4000 bytes to max kmalloc()able bytes. By that commit, a line's max length
changed from 8192 bytes to more than max kmalloc()able bytes.

Max number of words in a line remains finite. This patch changes the way of
buffering so that all words in a line are firstly directly copied to userspace
buffer as much as possible and are secondly queued for next read request.
Words queued are guaranteed to be valid until /sys/kernel/security/tomoyo/
interface is close()d.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02 15:34:45 +10:00
..
integrity/ima kref: remove kref_set 2010-05-21 09:37:29 -07:00
keys KEYS: Make /proc/keys check to see if a key is possessed before security check 2010-08-02 15:34:27 +10:00
selinux selinux: Use current_security() when possible 2010-08-02 15:34:39 +10:00
smack smack: opt_dentry is never null in in smack_d_instantiate() 2010-08-02 15:33:39 +10:00
tomoyo TOMOYO: Copy directly to userspace buffer. 2010-08-02 15:34:45 +10:00
capability.c LSM: Remove unused arguments from security_path_truncate(). 2010-08-02 15:33:40 +10:00
commoncap.c security: whitespace coding style fixes 2010-04-23 10:10:23 +10:00
device_cgroup.c Merge branch 'master' into next 2010-05-06 10:56:07 +10:00
inode.c security: testing the wrong variable in create_by_name() 2010-04-22 21:17:41 +10:00
Kconfig remove CONFIG_SECURITY_FILE_CAPABILITIES compile option 2009-11-24 15:06:47 +11:00
lsm_audit.c Merge branch 'master' into next 2010-05-06 10:56:07 +10:00
Makefile NOMMU: Optimise away the {dac_,}mmap_min_addr tests 2009-12-17 09:25:19 +11:00
min_addr.c mmap_min_addr check CAP_SYS_RAWIO only for write 2010-04-23 08:56:31 +10:00
security.c LSM: Remove unused arguments from security_path_truncate(). 2010-08-02 15:33:40 +10:00