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Subject[PATCH] integrity: Expose data structures required for include/linux/integrity.h
Date
From: Florent Revest <revest@google.com>

include/linux/integrity.h exposes the prototype of integrity_inode_get().
However, it relies on struct integrity_iint_cache which is currently
defined in an internal header, security/integrity/integrity.h.

To allow the rest of the kernel to use integrity_inode_get, this patch
moves the definition of the necessary structures from a private header
to a global kernel header.

Signed-off-by: Florent Revest <revest@google.com>
---
include/linux/integrity.h | 37 ++++++++++++++++++++++++++++++++++
security/integrity/integrity.h | 37 ----------------------------------
2 files changed, 37 insertions(+), 37 deletions(-)

diff --git a/include/linux/integrity.h b/include/linux/integrity.h
index 2271939c5c31..15a0d5e91737 100644
--- a/include/linux/integrity.h
+++ b/include/linux/integrity.h
@@ -18,6 +18,43 @@ enum integrity_status {
INTEGRITY_UNKNOWN,
};

+#define IMA_MAX_DIGEST_SIZE 64
+
+struct ima_digest_data {
+ u8 algo;
+ u8 length;
+ union {
+ struct {
+ u8 unused;
+ u8 type;
+ } sha1;
+ struct {
+ u8 type;
+ u8 algo;
+ } ng;
+ u8 data[2];
+ } xattr;
+ u8 digest[0];
+} __packed;
+
+/* integrity data associated with an inode */
+struct integrity_iint_cache {
+ struct rb_node rb_node; /* rooted in integrity_iint_tree */
+ struct mutex mutex; /* protects: version, flags, digest */
+ struct inode *inode; /* back pointer to inode in question */
+ u64 version; /* track inode changes */
+ unsigned long flags;
+ unsigned long measured_pcrs;
+ unsigned long atomic_flags;
+ enum integrity_status ima_file_status:4;
+ enum integrity_status ima_mmap_status:4;
+ enum integrity_status ima_bprm_status:4;
+ enum integrity_status ima_read_status:4;
+ enum integrity_status ima_creds_status:4;
+ enum integrity_status evm_status:4;
+ struct ima_digest_data *ima_hash;
+};
+
/* List of EVM protected security xattrs */
#ifdef CONFIG_INTEGRITY
extern struct integrity_iint_cache *integrity_inode_get(struct inode *inode);
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index 65377848fbc5..2d5e69ab4646 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -77,25 +77,6 @@ struct evm_ima_xattr_data {
u8 digest[SHA1_DIGEST_SIZE];
} __packed;

-#define IMA_MAX_DIGEST_SIZE 64
-
-struct ima_digest_data {
- u8 algo;
- u8 length;
- union {
- struct {
- u8 unused;
- u8 type;
- } sha1;
- struct {
- u8 type;
- u8 algo;
- } ng;
- u8 data[2];
- } xattr;
- u8 digest[0];
-} __packed;
-
/*
* signature format v2 - for using with asymmetric keys
*/
@@ -108,24 +89,6 @@ struct signature_v2_hdr {
uint8_t sig[0]; /* signature payload */
} __packed;

-/* integrity data associated with an inode */
-struct integrity_iint_cache {
- struct rb_node rb_node; /* rooted in integrity_iint_tree */
- struct mutex mutex; /* protects: version, flags, digest */
- struct inode *inode; /* back pointer to inode in question */
- u64 version; /* track inode changes */
- unsigned long flags;
- unsigned long measured_pcrs;
- unsigned long atomic_flags;
- enum integrity_status ima_file_status:4;
- enum integrity_status ima_mmap_status:4;
- enum integrity_status ima_bprm_status:4;
- enum integrity_status ima_read_status:4;
- enum integrity_status ima_creds_status:4;
- enum integrity_status evm_status:4;
- struct ima_digest_data *ima_hash;
-};
-
/* rbtree tree calls to lookup, insert, delete
* integrity data associated with an inode.
*/
--
2.24.1.735.g03f4e72817-goog
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