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[PATCH] s390: CEX2A crt message length

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Undetected edge case for CRT messages to CEX2A caused length to be too short,
thus truncating the message.  The solution was to check a different variable
which actually determines which key type is being used.

Increment version number in z90main.c to correct level of 1.3.3, fix copyright
year and add comment about bitlength limit of CEX2A.

Signed-off-by: Eric Rossman <edrossma@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric Rossman 2006-03-24 03:15:30 -08:00 committed by Linus Torvalds
parent b6cba4ee31
commit 96641ee1e4
2 changed files with 12 additions and 3 deletions
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10
drivers/s390/crypto/z90hardware.c
View File

@ -2214,7 +2214,7 @@ ICACRT_msg_to_type50CRT_msg(struct ica_rsa_modexpo_crt *icaMsg_p,
long_len = 128;
}
tmp_size = ((mod_len <= 128) ? TYPE50_CRB1_LEN : TYPE50_CRB2_LEN) +
tmp_size = ((long_len <= 64) ? TYPE50_CRB1_LEN : TYPE50_CRB2_LEN) +
CALLER_HEADER;
memset(z90cMsg_p, 0, tmp_size);
@ -2479,8 +2479,16 @@ convert_response(unsigned char *response, unsigned char *buffer,
if (reply_code)
switch (reply_code) {
case REP82_ERROR_MACHINE_FAILURE:
if (errh_p->type == TYPE82_RSP_CODE)
PRINTKW("Machine check failure\n");
else
PRINTKW("Module failure\n");
return REC_HARDWAR_ERR;
case REP82_ERROR_OPERAND_INVALID:
return REC_OPERAND_INV;
case REP88_ERROR_MESSAGE_MALFORMD:
PRINTKW("Message malformed\n");
return REC_OPERAND_INV;
case REP82_ERROR_OPERAND_SIZE:
return REC_OPERAND_SIZE;

5
drivers/s390/crypto/z90main.c
View File

@ -1,9 +1,9 @@
/*
* linux/drivers/s390/crypto/z90main.c
*
* z90crypt 1.3.2
* z90crypt 1.3.3
*
* Copyright (C) 2001, 2004 IBM Corporation
* Copyright (C) 2001, 2005 IBM Corporation
* Author(s): Robert Burroughs (burrough@us.ibm.com)
* Eric Rossman (edrossma@us.ibm.com)
*
@ -991,6 +991,7 @@ remove_device(struct device *device_p)
* PCIXCC_MCL2 512-2048 ----- (applying any GA LIC will make an MCL3 card)
* PCIXCC_MCL3 ----- 128-2048
* CEX2C 512-2048 128-2048
* CEX2A ??-2048 same (the lower limit is less than 128 bit...)
*
* ext_bitlens (extended bitlengths) is a global, since you should not apply an
* MCL to just one card in a machine. We assume, at first, that all cards have