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Fix a rare "truncated checksums" problem, which manifested like this:

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WARNING: icl_pdu_check_data_digest: data digest check failed; got 0xf23b,
    should be 0xdb7f23b

Tested by:	Darcy Birkbeck
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
trasz 2014-01-07 11:03:57 +00:00
parent 9784536f3c
commit d0cf88a92b
1 changed files with 2 additions and 2 deletions
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4
sys/dev/iscsi/icl.c
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@ -324,7 +324,7 @@ icl_pdu_check_header_digest(struct icl_pdu *request, size_t *availablep)
}
CTASSERT(sizeof(received_digest) == ISCSI_HEADER_DIGEST_SIZE);
memcpy(&received_digest, mtod(m, void *), ISCSI_HEADER_DIGEST_SIZE);
m_copydata(m, 0, ISCSI_HEADER_DIGEST_SIZE, (void *)&received_digest);
m_freem(m);
*availablep -= ISCSI_HEADER_DIGEST_SIZE;
@ -482,7 +482,7 @@ icl_pdu_check_data_digest(struct icl_pdu *request, size_t *availablep)
}
CTASSERT(sizeof(received_digest) == ISCSI_DATA_DIGEST_SIZE);
memcpy(&received_digest, mtod(m, void *), ISCSI_DATA_DIGEST_SIZE);
m_copydata(m, 0, ISCSI_DATA_DIGEST_SIZE, (void *)&received_digest);
m_freem(m);
*availablep -= ISCSI_DATA_DIGEST_SIZE;