91 lines
2 KiB
C
91 lines
2 KiB
C
|
/*
|
||
|
|
* PROCA identity
|
||
|
|
*
|
||
|
|
* Copyright (C) 2018 Samsung Electronics, Inc.
|
||
|
|
* Ivan Vorobiov, <i.vorobiov@samsung.com>
|
||
|
|
* Egor Uleyskiy, <e.uleyskiy@samsung.com>
|
||
|
|
*
|
||
|
|
* This software is licensed under the terms of the GNU General Public
|
||
|
|
* License version 2, as published by the Free Software Foundation, and
|
||
|
|
* may be copied, distributed, and modified under those terms.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "proca_identity.h"
|
||
|
|
#include "proca_certificate.h"
|
||
|
|
#include <linux/slab.h>
|
||
|
|
#include <linux/fs.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
|
||
|
|
int init_proca_identity(struct proca_identity *identity, struct file *file,
|
||
|
|
char *xattr_value, const size_t xattr_size,
|
||
|
|
struct proca_certificate *parsed_cert)
|
||
|
|
{
|
||
|
|
int rc = 0;
|
||
|
|
|
||
|
|
if (!file)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
get_file(file);
|
||
|
|
identity->file = file;
|
||
|
|
identity->certificate = xattr_value;
|
||
|
|
identity->certificate_size = xattr_size;
|
||
|
|
|
||
|
|
if (parsed_cert)
|
||
|
|
identity->parsed_cert = *parsed_cert;
|
||
|
|
else
|
||
|
|
memset(&identity->parsed_cert,
|
||
|
|
0, sizeof(identity->parsed_cert));
|
||
|
|
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
int proca_identity_copy(struct proca_identity *dst, struct proca_identity *src)
|
||
|
|
{
|
||
|
|
int rc = 0;
|
||
|
|
|
||
|
|
BUG_ON(!dst || !src);
|
||
|
|
|
||
|
|
memset(dst, 0, sizeof(*dst));
|
||
|
|
|
||
|
|
get_file(src->file);
|
||
|
|
dst->file = src->file;
|
||
|
|
|
||
|
|
if (src->certificate) {
|
||
|
|
dst->certificate = kmemdup(
|
||
|
|
src->certificate,
|
||
|
|
src->certificate_size,
|
||
|
|
GFP_KERNEL);
|
||
|
|
dst->certificate_size =
|
||
|
|
src->certificate_size;
|
||
|
|
|
||
|
|
if (unlikely(!dst->certificate)) {
|
||
|
|
fput(src->file);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
rc = proca_certificate_copy(&dst->parsed_cert, &src->parsed_cert);
|
||
|
|
if (rc != 0) {
|
||
|
|
kfree(dst->certificate);
|
||
|
|
fput(src->file);
|
||
|
|
}
|
||
|
|
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
void deinit_proca_identity(struct proca_identity *identity)
|
||
|
|
{
|
||
|
|
if (unlikely(!identity))
|
||
|
|
return;
|
||
|
|
|
||
|
|
deinit_proca_certificate(&identity->parsed_cert);
|
||
|
|
if (identity->file)
|
||
|
|
fput(identity->file);
|
||
|
|
kfree(identity->certificate);
|
||
|
|
}
|