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author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2016-01-30 22:23:26 -0500 |
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committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2016-02-21 09:06:09 -0500 |
commit | 39eeb4fb97f60dbdfc823c1a673a8844b9226b60 (patch) | |
tree | 46e37e2211017237abd363a0dd1b3737da741ed0 /security/integrity | |
parent | e40ba6d56b41754b37b995dbc8035b2b3a6afd8a (diff) | |
download | linux-39eeb4fb97f60dbdfc823c1a673a8844b9226b60.tar.gz linux-39eeb4fb97f60dbdfc823c1a673a8844b9226b60.tar.bz2 linux-39eeb4fb97f60dbdfc823c1a673a8844b9226b60.zip |
security: define kernel_read_file hook
The kernel_read_file security hook is called prior to reading the file
into memory.
Changelog v4+:
- export security_kernel_read_file()
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'security/integrity')
-rw-r--r-- | security/integrity/ima/ima_main.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index e9651be17b72..bbb80df28fb1 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -338,6 +338,22 @@ int ima_module_check(struct file *file) } /** + * ima_read_file - pre-measure/appraise hook decision based on policy + * @file: pointer to the file to be measured/appraised/audit + * @read_id: caller identifier + * + * Permit reading a file based on policy. The policy rules are written + * in terms of the policy identifier. Appraising the integrity of + * a file requires a file descriptor. + * + * For permission return 0, otherwise return -EACCES. + */ +int ima_read_file(struct file *file, enum kernel_read_file_id read_id) +{ + return 0; +} + +/** * ima_post_read_file - in memory collect/appraise/audit measurement * @file: pointer to the file to be measured/appraised/audit * @buf: pointer to in memory file contents |