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| author | Eric Biggers <ebiggers@google.com> | 2020-03-14 13:50:51 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2020-03-19 21:57:06 -0700 |
| commit | ee446e1af4ff90945e2273ae0af322b8b745b8cc (patch) | |
| tree | f6cf92c442ce3960a50b243489faa6823f9c4ccb /fs/f2fs/file.c | |
| parent | 7ec9f3b47aba0fe715bf3472ed80e91c37970363 (diff) | |
| download | linux-ee446e1af4ff90945e2273ae0af322b8b745b8cc.tar.bz2 | |
f2fs: wire up FS_IOC_GET_ENCRYPTION_NONCE
This new ioctl retrieves a file's encryption nonce, which is useful for
testing. See the corresponding fs/crypto/ patch for more details.
Link: https://lore.kernel.org/r/20200314205052.93294-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'fs/f2fs/file.c')
| -rw-r--r-- | fs/f2fs/file.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 0d4da644df3b..351762f77840 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2423,6 +2423,14 @@ static int f2fs_ioc_get_encryption_key_status(struct file *filp, return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); } +static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg) +{ + if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) + return -EOPNOTSUPP; + + return fscrypt_ioctl_get_nonce(filp, (void __user *)arg); +} + static int f2fs_ioc_gc(struct file *filp, unsigned long arg) { struct inode *inode = file_inode(filp); @@ -3437,6 +3445,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return f2fs_ioc_remove_encryption_key_all_users(filp, arg); case FS_IOC_GET_ENCRYPTION_KEY_STATUS: return f2fs_ioc_get_encryption_key_status(filp, arg); + case FS_IOC_GET_ENCRYPTION_NONCE: + return f2fs_ioc_get_encryption_nonce(filp, arg); case F2FS_IOC_GARBAGE_COLLECT: return f2fs_ioc_gc(filp, arg); case F2FS_IOC_GARBAGE_COLLECT_RANGE: @@ -3611,6 +3621,7 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case FS_IOC_REMOVE_ENCRYPTION_KEY: case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: case FS_IOC_GET_ENCRYPTION_KEY_STATUS: + case FS_IOC_GET_ENCRYPTION_NONCE: case F2FS_IOC_GARBAGE_COLLECT: case F2FS_IOC_GARBAGE_COLLECT_RANGE: case F2FS_IOC_WRITE_CHECKPOINT: |