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Enable userspace FEC decoding in veritysetup.

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This commit is contained in:
Michal Virgovič
2018-03-19 10:13:23 +01:00
committed by Milan Broz
parent 5e0db46f17
commit dc58985ac6
4 changed files with 59 additions and 23 deletions
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15
lib/verity/verity.c
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@@ -242,6 +242,7 @@ int VERITY_activate(struct crypt_device *cd,
{
struct crypt_dm_active_device dmd;
uint32_t dmv_flags;
unsigned int fec_errors = 0;
int r;
log_dbg("Trying to activate VERITY device %s using hash %s.",
@@ -249,8 +250,18 @@ int VERITY_activate(struct crypt_device *cd,
if (verity_hdr->flags & CRYPT_VERITY_CHECK_HASH) {
log_dbg("Verification of data in userspace required.");
r = VERITY_verify(cd, verity_hdr,
root_hash, root_hash_size);
r = VERITY_verify(cd, verity_hdr, root_hash, root_hash_size);
if (r == -EPERM && fec_device) {
log_dbg("Verification failed, trying to repair with FEC device.");
r = VERITY_FEC_process(cd, verity_hdr, fec_device, 1, &fec_errors);
if (r < 0)
log_err(cd, _("Errors cannot be repaired with FEC device.\n"));
else if (fec_errors)
log_err(cd, _("Found %u repairable errors with FEC device.\n"),
fec_errors);
}
if (r < 0)
return r;
}