fscrypt_fname_disk_to

函数名称：scrypt_fname_disk_to_usr() - converts a filename from disk space to user* space* The caller must have allocated sufficient memory for the @oname string.* If the key is available, we'll decrypt the disk name; otherwise, we'll encode* it for presentation

函数原型：int fscrypt_fname_disk_to_usr(struct inode *inode, unsigned int hash, unsigned int minor_hash, const struct fscrypt_str *iname, struct fscrypt_str *oname)

返回类型：int

参数：

类型	参数	名称
struct inode *	inode
unsigned int	hash
unsigned int	minor_hash
const struct fscrypt_str *	iname
struct fscrypt_str *	oname

255

qname等于FSTR_TO_QSTR(iname)

258

如果fscrypt_is_dot_dotdot( & qname)则

259

name[0]等于'.'

260

name[len - 1]等于'.'

261

len等于len

262

返回:0

265

如果len小于ld names; don't add anything new here! 则返回:负EUCLEAN

268

如果fscrypt_has_encryption_key(inode)则返回:ame_decrypt() - decrypt a filename* The caller must have allocated sufficient memory for the @oname string.* Return: 0 on success, -errno on failure

271

如果len小于等于FSCRYPT_FNAME_MAX_UNDIGESTED_SIZE则

272

len等于ase64_encode() -* Encodes the input string using characters from the set [A-Za-z0-9+,].* The encoded string is roughly 4/3 times the size of the input string.* Return: length of the encoded string

274

返回:0

276

如果hash则

277

hash等于hash

278

minor_hash等于minor_hash

279

否则

280

hash等于0

281

minor_hash等于0

283

memcpy(digest, FSCRYPT_FNAME_DIGEST(name, len), FSCRYPT_FNAME_DIGEST_SIZE)

286

name[0]等于'_'

287

len等于1加ase64_encode() -* Encodes the input string using characters from the set [A-Za-z0-9+,].* The encoded string is roughly 4/3 times the size of the input string.* Return: length of the encoded string

289

返回:0

**调用者**
名称	描述
fscrypt_get_symlink	scrypt_get_symlink - get the target of an encrypted symlink@inode: the symlink inode@caddr: the on-disk contents of the symlink@max_size: size of @caddr buffer@done: if successful, will be set up to free the returned target if needed

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告