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Add routine for erasing resilience structure.

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This commit is contained in:
Ondrej Kozina
2022-05-31 13:14:09 +02:00
parent b75a6d2b64
commit bf0d0203e8
1 changed files with 18 additions and 11 deletions
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29
lib/luks2/luks2_reencrypt.c
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@@ -646,22 +646,29 @@ static crypt_reencrypt_direction_info reencrypt_direction(struct luks2_hdr *hdr)
typedef enum { REENC_OK = 0, REENC_ERR, REENC_ROLLBACK, REENC_FATAL } reenc_status_t;
static void LUKS2_reencrypt_protection_erase(struct reenc_protection *rp)
{
if (!rp || rp->type != REENC_PROTECTION_CHECKSUM)
return;
if (rp->p.csum.ch) {
crypt_hash_destroy(rp->p.csum.ch);
rp->p.csum.ch = NULL;
}
if (rp->p.csum.checksums) {
memset(rp->p.csum.checksums, 0, rp->p.csum.checksums_len);
free(rp->p.csum.checksums);
rp->p.csum.checksums = NULL;
}
}
void LUKS2_reencrypt_free(struct crypt_device *cd, struct luks2_reencrypt *rh)
{
if (!rh)
return;
if (rh->rp.type == REENC_PROTECTION_CHECKSUM) {
if (rh->rp.p.csum.ch) {
crypt_hash_destroy(rh->rp.p.csum.ch);
rh->rp.p.csum.ch = NULL;
}
if (rh->rp.p.csum.checksums) {
memset(rh->rp.p.csum.checksums, 0, rh->rp.p.csum.checksums_len);
free(rh->rp.p.csum.checksums);
rh->rp.p.csum.checksums = NULL;
}
}
LUKS2_reencrypt_protection_erase(&rh->rp);
json_object_put(rh->jobj_segs_hot);
rh->jobj_segs_hot = NULL;