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2010-08-02TOMOYO: Change list iterator.Tetsuo Handa1-12/+4
Change list_for_each_cookie to (1) start from current position rather than next position (2) remove temporary cursor (3) check that srcu_read_lock() is held Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use common code for domain transition control.Tetsuo Handa1-43/+21
Use common code for "initialize_domain"/"no_initialize_domain"/"keep_domain"/ "no_keep_domain" keywords. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Remove alias keyword.Tetsuo Handa1-25/+5
Some programs behave differently depending on argv[0] passed to execve(). TOMOYO has "alias" keyword in order to allow administrators to define different domains if requested pathname passed to execve() is a symlink. But "alias" keyword is incomplete because this keyword assumes that requested pathname and argv[0] are identical. Thus, remove "alias" keyword (by this patch) and add syntax for checking argv[0] (by future patches). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Merge path_group and number_group.Tetsuo Handa1-7/+6
Use common code for "path_group" and "number_group". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Aggregate reader functions.Tetsuo Handa1-22/+0
Now lists are accessible via array index. Aggregate reader functions using index. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use array of "struct list_head".Tetsuo Handa1-11/+27
Assign list id and make the lists as array of "struct list_head". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Merge tomoyo_path_group and tomoyo_number_groupTetsuo Handa1-25/+11
"struct tomoyo_path_group" and "struct tomoyo_number_group" are identical. Rename tomoyo_path_group/tomoyo_number_group to tomoyo_group and tomoyo_path_group_member to tomoyo_path_group and tomoyo_number_group_member to tomoyo_unmber_group. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Make read function to void.Tetsuo Handa1-2/+2
Read functions do not fail. Make them from int to void. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Remove wrapper function for reading keyword.Tetsuo Handa1-6/+5
Keyword strings are read-only. We can directly access them to reduce code size. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Rename symbols.Tetsuo Handa1-21/+21
Use shorter name in order to make it easier to fix 80 columns limit. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use callback for permission check.Tetsuo Handa1-0/+3
We can use callback function since parameters are passed via "const struct tomoyo_request_info". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Pass parameters via structure.Tetsuo Handa1-0/+33
To make it possible to use callback function, pass parameters via "struct tomoyo_request_info". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use common code for open and mkdir etc.Tetsuo Handa1-1/+1
tomoyo_file_perm() and tomoyo_path_permission() are similar. We can embed tomoyo_file_perm() into tomoyo_path_permission(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use callback for updating entries.Tetsuo Handa1-33/+6
Use common code for elements using "struct list_head" + "bool" structure. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use common structure for list element.Tetsuo Handa1-62/+50
Use common "struct list_head" + "bool" structure. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use callback for updating entries.Tetsuo Handa1-58/+24
Use common "struct list_head" + "bool" + "u8" structure and use common code for elements using that structure. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Update profile structure.Tetsuo Handa1-11/+57
This patch allows users to change access control mode for per-operation basis. This feature comes from non LSM version of TOMOYO which is designed for permitting users to use SELinux and TOMOYO at the same time. SELinux does not care filename in a directory whereas TOMOYO does. Change of filename can change how the file is used. For example, renaming index.txt to .htaccess will change how the file is used. Thus, letting SELinux to enforce read()/write()/mmap() etc. restriction and letting TOMOYO to enforce rename() restriction is an example usage of this feature. What is unfortunate for me is that currently LSM does not allow users to use SELinux and LSM version of TOMOYO at the same time... Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Add pathname aggregation support.Tetsuo Handa1-0/+32
This patch allows users to aggregate programs which provide similar functionality (e.g. /usr/bin/vi and /usr/bin/emacs ). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Allow wildcard for execute permission.Tetsuo Handa1-4/+3
Some applications create and execute programs dynamically. We need to accept wildcard for execute permission because such programs contain random suffix in their filenames. This patch loosens up regulation of string parameters. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Support longer pathname.Tetsuo Handa1-46/+2
Allow pathnames longer than 4000 bytes. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Several fixes for TOMOYO's management programs.Tetsuo Handa1-0/+2
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Split files into some pieces.Tetsuo Handa1-2/+27
security/tomoyo/common.c became too large to read. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Add interactive enforcing mode.Tetsuo Handa1-6/+22
Since the behavior of the system is restricted by policy, we may need to update policy when you update packages. We need to update policy in the following cases. * The pathname of files has changed. * The dependency of files has changed. * The access permissions required has increased. The ideal way to update policy is to rebuild from the scratch using learning mode. But it is not desirable to change from enforcing mode to other mode if the system has once entered in production state. Suppose MAC could support per-application enforcing mode, the MAC becomes useless if an application that is not running in enforcing mode was cracked. For example, the whole system becomes vulnerable if only HTTP server application is running in learning mode to rebuild policy for the application. So, in TOMOYO Linux, updating policy is done while the system is running in enforcing mode. This patch implements "interactive enforcing mode" which allows administrators to judge whether to accept policy violation in enforcing mode or not. A demo movie is available at http://www.youtube.com/watch?v=b9q1Jo25LPA . Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Add mount restriction.Tetsuo Handa1-4/+52
mount(2) has three string and one numeric parameters. Split mount restriction code from security/tomoyo/file.c . Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Split file access control functions by type of parameters.Tetsuo Handa1-21/+105
Check numeric parameters for operations that deal them (e.g. chmod/chown/ioctl). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Use structure for passing common arguments.Tetsuo Handa1-6/+21
Use "struct tomoyo_request_info" instead of passing individual arguments. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Add numeric values grouping support.Tetsuo Handa1-0/+61
This patch adds numeric values grouping support, which is useful for grouping numeric values such as file's UID, DAC's mode, ioctl()'s cmd number. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-17TOMOYO: Add pathname grouping support.Tetsuo Handa1-9/+85
This patch adds pathname grouping support, which is useful for grouping pathnames that cannot be represented using /\{dir\}/ pattern. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-10TOMOYO: Use stack memory for pending entry.Tetsuo Handa1-0/+26
Use stack memory for pending entry to reduce kmalloc() which will be kfree()d. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-06TOMOYO: Use mutex_lock_interruptible.Tetsuo Handa1-1/+0
Some of TOMOYO's functions may sleep after mutex_lock(). If OOM-killer selected a process which is waiting at mutex_lock(), the to-be-killed process can't be killed. Thus, replace mutex_lock() with mutex_lock_interruptible() so that the to-be-killed process can immediately return from TOMOYO's functions. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-17TOMOYO: Remove __func__ from tomoyo_is_correct_path/domainTetsuo Handa1-4/+2
__func__ is used for only debug printk(). We can remove it. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-16TOMOYO: Remove unneeded parameter.Tetsuo Handa1-6/+4
tomoyo_path_perm() tomoyo_path2_perm() and tomoyo_check_rewrite_permission() always receive tomoyo_domain(). We can move it from caller to callee. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-16TOMOYO: Use shorter names.Tetsuo Handa1-46/+44
Use shorter name to reduce newlines needed for 80 columns limit. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-16TOMOYO: Use enum for index numbers.Tetsuo Handa1-45/+54
Use enum to declare index numbers. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-15TOMOYO: Add garbage collector.Tetsuo Handa1-0/+15
This patch adds garbage collector support to TOMOYO. Elements are protected by "struct srcu_struct tomoyo_ss". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-15TOMOYO: Add refcounter on domain structure.Tetsuo Handa1-0/+5
Add refcounter to "struct tomoyo_domain_info" since garbage collector needs to determine whether this struct is referred by "struct cred"->security or not. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-15TOMOYO: Merge headers.Tetsuo Handa1-60/+351
Gather structures and constants scattered around security/tomoyo/ directory. This is for preparation for adding garbage collector since garbage collector needs to know structures and constants which TOMOYO uses. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-02-08TOMOYO: Extract bitfieldTetsuo Handa1-41/+12
Since list elements are rounded up to kmalloc() size rather than sizeof(int), saving one byte by using bitfields is no longer helpful. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-01-27TOMOYO: Remove usage counter for temporary memory.Tetsuo Handa1-1/+1
TOMOYO was using own memory usage counter for detecting memory leak. But as kernel 2.6.31 introduced memory leak detection mechanism ( CONFIG_DEBUG_KMEMLEAK ), we no longer need to have own counter. We remove usage counter for memory used for permission checks, but we keep usage counter for memory used for policy so that we can apply quota. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-01-11TOMOYO: Remove memory pool for list elements.Tetsuo Handa1-2/+0
Currently, TOMOYO allocates memory for list elements from memory pool allocated by kmalloc(PAGE_SIZE). But that makes it difficult to kfree() when garbage collector is added. Thus, remove memory pool and use kmalloc(sizeof()). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-01-11TOMOYO: Replace rw_semaphore by mutex.Tetsuo Handa1-3/+2
Since readers no longer use down_read(), writers no longer need to use rw_semaphore. Replace individual rw_semaphore by single mutex. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-12-15TOMOYO: Use RCU primitives for list operationTetsuo Handa1-7/+21
Replace list operation with RCU primitives and replace down_read()/up_read() with srcu_read_lock()/srcu_read_unlock(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-12-08TOMOYO: Add rest of file operation restrictions.Tetsuo Handa1-4/+8
LSM hooks for chmod()/chown()/chroot() are now ready. This patch utilizes these hooks. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-11-25TOMOYO: Add recursive directory matching operator support.Tetsuo Handa1-4/+0
TOMOYO 1.7.1 has recursive directory matching operator support. I want to add it to TOMOYO for Linux 2.6.33 . ---------- [PATCH] TOMOYO: Add recursive directory matching operator support. This patch introduces new operator /\{dir\}/ which matches '/' + 'One or more repetitions of dir/' (e.g. /dir/ /dir/dir/ /dir/dir/dir/ ). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: John Johansen <john.johansen@canonical.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-06-19TOMOYO: Move tomoyo_delete_domain().Tetsuo Handa1-2/+0
We can mark tomoyo_delete_domain() as a "static" function by moving it from domain.c to common.c . Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-06-09TOMOYO: Add description of lists and structures.Tetsuo Handa1-11/+122
This patch adds some descriptions of lists and structures. This patch contains no code changes. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-06-09TOMOYO: Remove unused field.Tetsuo Handa1-1/+0
TOMOYO 2.2.0 is not using total_len field of "struct tomoyo_path_info". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-04-14tomoyo: version bump to 2.2.0.Tetsuo Handa1-1/+1
Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-04-07tomoyo: remove "undelete domain" command.Tetsuo Handa1-7/+1
Since TOMOYO's policy management tools does not use the "undelete domain" command, we decided to remove that command. Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-03-27TOMOYO: Fix a typo.Tetsuo Handa1-1/+1
Fix a typo. Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: James Morris <jmorris@namei.org>
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