X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=libcfs%2Flibcfs%2Fcrypto%2Fpolicy.c;h=5e744544f6b6e7873208ff48db452777acdb6c42;hb=f18c87cb5362496a4baadaa14265471c992ca06a;hp=8d209e202ac700cddefb77268c5f13ef8622aa8e;hpb=c60b7d9f571748fb055d29cd019709f9e965a84d;p=fs%2Flustre-release.git

diff --git a/libcfs/libcfs/crypto/policy.c b/libcfs/libcfs/crypto/policy.c
index 8d209e2..5e74454 100644
--- a/libcfs/libcfs/crypto/policy.c
+++ b/libcfs/libcfs/crypto/policy.c
@@ -282,6 +282,25 @@ static int set_encryption_policy(struct inode *inode,
 	return lsi->lsi_cop->set_context(inode, &ctx, ctxsize, NULL);
 }
 
+/* Tell if an inode's encryption policy has filename encryption */
+bool llcrypt_policy_has_filename_enc(struct inode *inode)
+{
+	union llcrypt_policy policy;
+	int err;
+
+	err = llcrypt_get_policy(inode, &policy);
+	if (err)
+		return true;
+
+	if ((policy.version == LLCRYPT_POLICY_V1 &&
+	     policy.v1.filenames_encryption_mode == LLCRYPT_MODE_NULL) ||
+	    (policy.version == LLCRYPT_POLICY_V2 &&
+	     policy.v2.filenames_encryption_mode == LLCRYPT_MODE_NULL))
+		return false;
+	return true;
+}
+EXPORT_SYMBOL(llcrypt_policy_has_filename_enc);
+
 int llcrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
 {
 	union llcrypt_policy policy;