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evm: Rename is_unsupported_fs to is_unsupported_hmac_fs

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Rename is_unsupported_fs to is_unsupported_hmac_fs since now only HMAC is
unsupported.

Co-developed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
Stefan Berger 2024-02-23 12:25:13 -05:00 committed by Mimi Zohar
parent 1f65e57dc5
commit 5e2e4d0ea5
1 changed files with 10 additions and 9 deletions
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19
security/integrity/evm/evm_main.c
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@ -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))