[RFC PATCH 22/25] ext4 crypto: wire up FS_IOC_GET_ENCRYPTION_POLICY_EX

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From: Eric Biggers <ebiggers@xxxxxxxxxx>

FS_IOC_GET_ENCRYPTION_POLICY_EX allows filesystem encryption users to
retrieve the encryption policy for files and directories that use a v2
encryption policy.  Unlike the original FS_IOC_GET_ENCRYPTION_POLICY,
FS_IOC_GET_ENCRYPTION_POLICY_EX is also extensible to new versions of
the policy struct that may be added in the future.

Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
 fs/ext4/ioctl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index b8a6765a556f..954042f311dc 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -978,6 +978,9 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	case EXT4_IOC_GET_ENCRYPTION_POLICY:
 		return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
 
+	case FS_IOC_GET_ENCRYPTION_POLICY_EX:
+		return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
+
 	case FS_IOC_ADD_ENCRYPTION_KEY:
 		if (!ext4_has_feature_encrypt(sb))
 			return -EOPNOTSUPP;
@@ -1117,6 +1120,7 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	case EXT4_IOC_SET_ENCRYPTION_POLICY:
 	case EXT4_IOC_GET_ENCRYPTION_PWSALT:
 	case EXT4_IOC_GET_ENCRYPTION_POLICY:
+	case FS_IOC_GET_ENCRYPTION_POLICY_EX:
 	case FS_IOC_ADD_ENCRYPTION_KEY:
 	case FS_IOC_REMOVE_ENCRYPTION_KEY:
 	case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
-- 
2.15.0.rc0.271.g36b669edcc-goog




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