diff options
| author | Casey Schaufler <casey@schaufler-ca.com> | 2018-09-21 17:18:07 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2019-01-08 13:18:44 -0800 |
| commit | 43fc460907dc56a3450654efc6ba1dfbcd4594eb (patch) | |
| tree | db944e38f3908e790d8d577e10d23a0f7bf02b68 /security/tomoyo/common.h | |
| parent | 69b5a44a95bb86f3ad8a50bf2e354057ec450082 (diff) | |
| download | linux-43fc460907dc56a3450654efc6ba1dfbcd4594eb.tar.bz2 | |
TOMOYO: Abstract use of cred security blob
Don't use the cred->security pointer directly.
Provide helper functions that provide the security blob pointer.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
[kees: adjusted for ordered init series]
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'security/tomoyo/common.h')
| -rw-r--r-- | security/tomoyo/common.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h index 539bcdd30bb8..41898613d93b 100644 --- a/security/tomoyo/common.h +++ b/security/tomoyo/common.h @@ -29,6 +29,7 @@ #include <linux/in.h> #include <linux/in6.h> #include <linux/un.h> +#include <linux/lsm_hooks.h> #include <net/sock.h> #include <net/af_unix.h> #include <net/ip.h> @@ -1062,6 +1063,7 @@ void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt, /********** External variable definitions. **********/ extern bool tomoyo_policy_loaded; +extern int tomoyo_enabled; extern const char * const tomoyo_condition_keyword [TOMOYO_MAX_CONDITION_KEYWORD]; extern const char * const tomoyo_dif[TOMOYO_MAX_DOMAIN_INFO_FLAGS]; @@ -1197,13 +1199,26 @@ static inline void tomoyo_put_group(struct tomoyo_group *group) } /** + * tomoyo_cred - Get a pointer to the tomoyo cred security blob + * @cred - the relevant cred + * + * Returns pointer to the tomoyo cred blob. + */ +static inline struct tomoyo_domain_info **tomoyo_cred(const struct cred *cred) +{ + return (struct tomoyo_domain_info **)&cred->security; +} + +/** * tomoyo_domain - Get "struct tomoyo_domain_info" for current thread. * * Returns pointer to "struct tomoyo_domain_info" for current thread. */ static inline struct tomoyo_domain_info *tomoyo_domain(void) { - return current_cred()->security; + struct tomoyo_domain_info **blob = tomoyo_cred(current_cred()); + + return *blob; } /** @@ -1216,7 +1231,9 @@ static inline struct tomoyo_domain_info *tomoyo_domain(void) static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct *task) { - return task_cred_xxx(task, security); + struct tomoyo_domain_info **blob = tomoyo_cred(get_task_cred(task)); + + return *blob; } /** |