[PATCH v3 10/10] evm: Rename is_unsupported_fs to is_unsupported_hmac_fs

[Stefan Berger]

Rename is_unsupported_fs to is_unsupported_hmac_fs since now only HMAC is
unsupported.

Co-developed-by: Mimi Zohar <zo...@linux.ibm.com>
Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
---
 security/integrity/evm/evm_main.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/security/integrity/evm/evm_main.c 
b/security/integrity/evm/evm_main.c
index c4a6081ce596..62fe66dd53ce 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -151,7 +151,7 @@ static int evm_find_protected_xattrs(struct dentry *dentry)
        return count;
 }
 
-static int is_unsupported_fs(struct dentry *dentry)
+static int is_unsupported_hmac_fs(struct dentry *dentry)
 {
        struct inode *inode = d_backing_inode(dentry);
 
@@ -196,7 +196,8 @@ static enum integrity_status evm_verify_hmac(struct dentry 
*dentry,
         * On unsupported filesystems without EVM_INIT_X509 enabled, skip
         * signature verification.
         */
-       if (!(evm_initialized & EVM_INIT_X509) && is_unsupported_fs(dentry))
+       if (!(evm_initialized & EVM_INIT_X509) &&
+           is_unsupported_hmac_fs(dentry))
                return INTEGRITY_UNKNOWN;
 
        /* if status is not PASS, try to check again - against -ENOMEM */
@@ -266,7 +267,7 @@ static enum integrity_status evm_verify_hmac(struct dentry 
*dentry,
                        } else if (!IS_RDONLY(inode) &&
                                   !(inode->i_sb->s_readonly_remount) &&
                                   !IS_IMMUTABLE(inode) &&
-                                  !is_unsupported_fs(dentry)) {
+                                  !is_unsupported_hmac_fs(dentry)) {
                                evm_update_evmxattr(dentry, xattr_name,
                                                    xattr_value,
                                                    xattr_value_len);
@@ -502,12 +503,12 @@ static int evm_protect_xattr(struct mnt_idmap *idmap,
        if (strcmp(xattr_name, XATTR_NAME_EVM) == 0) {
                if (!capable(CAP_SYS_ADMIN))
                        return -EPERM;
-               if (is_unsupported_fs(dentry))
+               if (is_unsupported_hmac_fs(dentry))
                        return -EPERM;
        } else if (!evm_protected_xattr(xattr_name)) {
                if (!posix_xattr_acl(xattr_name))
                        return 0;
-               if (is_unsupported_fs(dentry))
+               if (is_unsupported_hmac_fs(dentry))
                        return 0;
 
                evm_status = evm_verify_current_integrity(dentry);
@@ -515,7 +516,7 @@ static int evm_protect_xattr(struct mnt_idmap *idmap,
                    (evm_status == INTEGRITY_NOXATTRS))
                        return 0;
                goto out;
-       } else if (is_unsupported_fs(dentry))
+       } else if (is_unsupported_hmac_fs(dentry))
                return 0;
 
        evm_status = evm_verify_current_integrity(dentry);
@@ -817,7 +818,7 @@ static void evm_inode_post_setxattr(struct dentry *dentry,
        if (!(evm_initialized & EVM_INIT_HMAC))
                return;
 
-       if (is_unsupported_fs(dentry))
+       if (is_unsupported_hmac_fs(dentry))
                return;
 
        evm_update_evmxattr(dentry, xattr_name, xattr_value, xattr_value_len);
@@ -916,7 +917,7 @@ static int evm_inode_setattr(struct mnt_idmap *idmap, 
struct dentry *dentry,
        if (evm_initialized & EVM_ALLOW_METADATA_WRITES)
                return 0;
 
-       if (is_unsupported_fs(dentry))
+       if (is_unsupported_hmac_fs(dentry))
                return 0;
 
        if (!(ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID)))
@@ -967,7 +968,7 @@ static void evm_inode_post_setattr(struct mnt_idmap *idmap,
        if (!(evm_initialized & EVM_INIT_HMAC))
                return;
 
-       if (is_unsupported_fs(dentry))
+       if (is_unsupported_hmac_fs(dentry))
                return;
 
        if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID))
-- 
2.43.0