kernel/linux.git/security/integrity/ima/ima_policy.c, branch linux-4.7.y

security/integrity/ima/ima_policy.c: use %pU to output UUID in printable format

2016-05-21T00:58:30+00:00

Instead of open coded variant re-use extension that vsprintf.c provides us for ages. Signed-off-by: Andy Shevchenko Reviewed-by: Matt Fleming Cc: Dmitry Kasatkin Cc: Mimi Zohar Cc: Rasmus Villemoes Cc: Arnd Bergmann Cc: "Theodore Ts'o" Cc: Al Viro Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ima: fix the string representation of the LSM/IMA hook enumeration ordering

2016-05-04T08:46:00+00:00

This patch fixes the string representation of the LSM/IMA hook enumeration ordering used for displaying the IMA policy. Fixes: d9ddf077bb85 ("ima: support for kexec image and initramfs") Signed-off-by: Mimi Zohar Tested-by: Eric Richter Signed-off-by: James Morris

ima: require signed IMA policy

2016-02-21T14:34:23+00:00

Require the IMA policy to be signed when additional rules can be added. v1: - initialize the policy flag - include IMA_APPRAISE_POLICY in the policy flag Signed-off-by: Mimi Zohar Acked-by: Petko Manolov Acked-by: Dmitry Kasatkin

ima: measure and appraise the IMA policy itself

2016-02-21T14:34:22+00:00

Add support for measuring and appraising the IMA policy itself. Changelog v4: - use braces on both if/else branches, even if single line on one of the branches - Dmitry - Use the id mapping - Dmitry Signed-off-by: Mimi Zohar Acked-by: Petko Manolov Acked-by: Dmitry Kasatkin

ima: support for kexec image and initramfs

2016-02-21T14:06:16+00:00

Add IMA policy support for measuring/appraising the kexec image and initramfs. Two new IMA policy identifiers KEXEC_KERNEL_CHECK and KEXEC_INITRAMFS_CHECK are defined. Example policy rules: measure func=KEXEC_KERNEL_CHECK appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig measure func=KEXEC_INITRAMFS_CHECK appraise func=KEXEC_INITRAMFS_CHECK appraise_type=imasig Moving the enumeration to the vfs layer simplified the patches, allowing the IMA changes, for the most part, to be separated from the other changes. Unfortunately, passing either a kernel_read_file_id or a ima_hooks enumeration within IMA is messy. Option 1: duplicate kernel_read_file enumeration in ima_hooks enum kernel_read_file_id { ... READING_KEXEC_IMAGE, READING_KEXEC_INITRAMFS, READING_MAX_ID enum ima_hooks { ... KEXEC_KERNEL_CHECK KEXEC_INITRAMFS_CHECK Option 2: define ima_hooks as extension of kernel_read_file eg: enum ima_hooks { FILE_CHECK = READING_MAX_ID, MMAP_CHECK, In order to pass both kernel_read_file_id and ima_hooks values, we would need to specify a struct containing a union. struct caller_id { union { enum ima_hooks func_id; enum kernel_read_file_id read_id; }; }; Option 3: incorportate the ima_hooks enumeration into kernel_read_file_id, perhaps changing the enumeration name. For now, duplicate the new READING_KEXEC_IMAGE/INITRAMFS in the ima_hooks. Changelog v4: - replaced switch statement with a kernel_read_file_id to an ima_hooks id mapping array - Dmitry - renamed ima_hook tokens KEXEC_CHECK and INITRAMFS_CHECK to KEXEC_KERNEL_CHECK and KEXEC_INITRAMFS_CHECK respectively - Dave Young Signed-off-by: Mimi Zohar Acked-by: Petko Manolov Acked-by: Dmitry Kasatkin Cc: Dave Young

ima: remove firmware and module specific cached status info

2016-02-21T14:06:13+00:00

Each time a file is read by the kernel, the file should be re-measured and the file signature re-appraised, based on policy. As there is no need to preserve the status information, this patch replaces the firmware and module specific cache status with a generic one named read_file. This change simplifies adding support for other files read by the kernel. Signed-off-by: Mimi Zohar Acked-by: Petko Manolov Acked-by: Dmitry Kasatkin

ima: define a new hook to measure and appraise a file already in memory

2016-02-21T03:35:08+00:00

This patch defines a new IMA hook ima_post_read_file() for measuring and appraising files read by the kernel. The caller loads the file into memory before calling this function, which calculates the hash followed by the normal IMA policy based processing. Changelog v5: - fail ima_post_read_file() if either file or buf is NULL v3: - rename ima_hash_and_process_file() to ima_post_read_file() v1: - split patch Signed-off-by: Mimi Zohar Acked-by: Dmitry Kasatkin

ima: use "ima_hooks" enum as function argument

2016-02-18T22:13:58+00:00

Cleanup the function arguments by using "ima_hooks" enumerator as needed. Signed-off-by: Mimi Zohar Acked-by: Petko Manolov Acked-by: Dmitry Kasatkin

ima: refactor ima_policy_show() to display "ima_hooks" rules

2016-02-18T22:13:56+00:00

Define and call a function to display the "ima_hooks" rules. Signed-off-by: Mimi Zohar Acked-by: Petko Manolov Acked-by: Dmitry Kasatkin

IMA: fix non-ANSI declaration of ima_check_policy()

2016-02-08T23:17:38+00:00

ima_check_policy() has no parameters, so use the normal void parameter convention to make it match the prototype in the header file security/integrity/ima/ima.h Signed-off-by: Colin Ian King Signed-off-by: Mimi Zohar