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path: root/security/tomoyo/util.c
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2011-07-14TOMOYO: Update kernel-doc.Tetsuo Handa
Update comments for scripts/kernel-doc and fix some of errors reported by scripts/checkpatch.pl . Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-07-11TOMOYO: Allow using UID/GID etc. of current thread as conditions.Tetsuo Handa
This patch adds support for permission checks using current thread's UID/GID etc. in addition to pathnames. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Rename meminfo to stat and show more statistics.Tetsuo Handa
Show statistics such as last policy update time and last policy violation time in addition to memory usage. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Cleanup part 4.Tetsuo Handa
Gather string constants to one file in order to make the object size smaller. Use unsigned type where appropriate. read()/write() returns ssize_t. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Add policy namespace support.Tetsuo Handa
Mauras Olivier reported that it is difficult to use TOMOYO in LXC environments, for TOMOYO cannot distinguish between environments outside the container and environments inside the container since LXC environments are created using pivot_root(). To address this problem, this patch introduces policy namespace. Each policy namespace has its own set of domain policy, exception policy and profiles, which are all independent of other namespaces. This independency allows users to develop policy without worrying interference among namespaces. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Add auditing interface.Tetsuo Handa
Add /sys/kernel/security/tomoyo/audit interface. This interface generates audit logs in the form of domain policy so that /usr/sbin/tomoyo-auditd can reuse audit logs for appending to /sys/kernel/security/tomoyo/domain_policy interface. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Simplify profile structure.Tetsuo Handa
Remove global preference from profile structure in order to make code simpler. Due to this structure change, printk() warnings upon policy violation are temporarily disabled. They will be replaced by /sys/kernel/security/tomoyo/audit by next patch. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Use struct for passing ACL line.Tetsuo Handa
Use structure for passing ACL line, in preparation for supporting policy namespace and conditional parameters. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Cleanup part 3.Tetsuo Handa
Use common structure for ACL with "struct list_head" + "atomic_t". Use array/struct where possible. Remove is_group from "struct tomoyo_name_union"/"struct tomoyo_number_union". Pass "struct file"->private_data rather than "struct file". Update some of comments. Bring tomoyo_same_acl_head() from common.h to domain.c . Bring tomoyo_invalid()/tomoyo_valid() from common.h to util.c . Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-06-29TOMOYO: Cleanup part 1.Tetsuo Handa
In order to synchronize with TOMOYO 1.8's syntax, (1) Remove special handling for allow_read/write permission. (2) Replace deny_rewrite/allow_rewrite permission with allow_append permission. (3) Remove file_pattern keyword. (4) Remove allow_read permission from exception policy. (5) Allow creating domains in enforcing mode without calling supervisor. (6) Add permission check for opening directory for reading. (7) Add permission check for stat() operation. (8) Make "cat < /sys/kernel/security/tomoyo/self_domain" behave as if "cat /sys/kernel/security/tomoyo/self_domain". Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2011-05-12TOMOYO: Fix wrong domainname validation.Tetsuo Handa
In tomoyo_correct_domain() since 2.6.36, TOMOYO was by error validating "<kernel>" + "/foo/\" + "/bar" when "<kernel> /foo/\* /bar" was given. As a result, legal domainnames like "<kernel> /foo/\* /bar" are rejected. Reported-by: Hayama Yossihiro <yossi@yedo.src.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-08-02TOMOYO: Fix quota check.Tetsuo Handa
Commit d74725b9 "TOMOYO: Use callback for updating entries." broke tomoyo_domain_quota_is_ok() by counting deleted entries. It needs to count non-deleted entries. 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 Handa
Use shorter name in order to make it easier to fit 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 common code for domain transition control.Tetsuo Handa
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: Merge path_group and number_group.Tetsuo Handa
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: Rename symbols.Tetsuo Handa
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 updating entries.Tetsuo Handa
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 Handa
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: Allow wildcard for execute permission.Tetsuo Handa
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: Split files into some pieces.Tetsuo Handa
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>
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