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crypto: dh - constify struct dh's pointer members

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struct dh contains several pointer members corresponding to DH parameters:
->key, ->p and ->g. A subsequent commit will introduce "dh" wrapping
templates of the form "ffdhe2048(dh)", "ffdhe3072(dh)" and so on in order
to provide built-in support for the well-known safe-prime ffdhe group
parameters specified in RFC 7919. These templates will need to set the
group parameter related members of the (serialized) struct dh instance
passed to the inner "dh" kpp_alg instance, i.e. ->p and ->g, to some
constant, static storage arrays.

Turn the struct dh pointer members' types into "pointer to const" in
preparation for this.

Signed-off-by: Nicolai Stange <nstange@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Nicolai Stange 2022-02-21 13:10:50 +01:00 committed by Herbert Xu
parent 48c6d8b878
commit 215bebc8c6
2 changed files with 4 additions and 4 deletions
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6
include/crypto/dh.h
View File

@ -30,9 +30,9 @@
* @g_size: Size of DH generator G
*/
struct dh {
void *key;
void *p;
void *g;
const void *key;
const void *p;
const void *g;
unsigned int key_size;
unsigned int p_size;
unsigned int g_size;

2
security/keys/dh.c
View File

@ -15,7 +15,7 @@
#include <keys/user-type.h>
#include "internal.h"
static ssize_t dh_data_from_key(key_serial_t keyid, void **data)
static ssize_t dh_data_from_key(key_serial_t keyid, const void **data)
{
struct key *key;
key_ref_t key_ref;