mirror of
https://github.com/torvalds/linux
synced 2024-09-06 09:51:23 +00:00
ecryptfs: remove private bin2hex implementation
Calling sprintf in a loop is not very efficient, and in any case, we already have an implementation of bin-to-hex conversion in lib/ which we might as well use. Note that ecryptfs_to_hex used to nul-terminate the destination (and the kernel doc was wrong about the required output size), while bin2hex doesn't. [All but one user of ecryptfs_to_hex explicitly nul-terminates the result anyway.] Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> [tyhicks: Include <linux/kernel.h> in ecryptfs_kernel.h] Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
This commit is contained in:
parent
0996b67df6
commit
abbae6d560
|
@ -41,21 +41,6 @@
|
|||
#define DECRYPT 0
|
||||
#define ENCRYPT 1
|
||||
|
||||
/**
|
||||
* ecryptfs_to_hex
|
||||
* @dst: Buffer to take hex character representation of contents of
|
||||
* src; must be at least of size (src_size * 2)
|
||||
* @src: Buffer to be converted to a hex string representation
|
||||
* @src_size: number of bytes to convert
|
||||
*/
|
||||
void ecryptfs_to_hex(char *dst, char *src, size_t src_size)
|
||||
{
|
||||
int x;
|
||||
|
||||
for (x = 0; x < src_size; x++)
|
||||
sprintf(&dst[x * 2], "%.2x", (unsigned char)src[x]);
|
||||
}
|
||||
|
||||
/**
|
||||
* ecryptfs_from_hex
|
||||
* @dst: Buffer to take the bytes from src hex; must be at least of
|
||||
|
|
|
@ -31,6 +31,7 @@
|
|||
#include <crypto/skcipher.h>
|
||||
#include <keys/user-type.h>
|
||||
#include <keys/encrypted-type.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/fs_stack.h>
|
||||
#include <linux/namei.h>
|
||||
|
@ -51,7 +52,13 @@
|
|||
#define ECRYPTFS_XATTR_NAME "user.ecryptfs"
|
||||
|
||||
void ecryptfs_dump_auth_tok(struct ecryptfs_auth_tok *auth_tok);
|
||||
extern void ecryptfs_to_hex(char *dst, char *src, size_t src_size);
|
||||
static inline void
|
||||
ecryptfs_to_hex(char *dst, char *src, size_t src_size)
|
||||
{
|
||||
char *end = bin2hex(dst, src, src_size);
|
||||
*end = '\0';
|
||||
}
|
||||
|
||||
extern void ecryptfs_from_hex(char *dst, char *src, int dst_size);
|
||||
|
||||
struct ecryptfs_key_record {
|
||||
|
|
Loading…
Reference in a new issue