target/iscsi: Fix mutual CHAP auth on big-endian arches
See https://bugzilla.redhat.com/show_bug.cgi?id=916290 Used a temp var since we take its address in sg_init_one. Signed-off-by: Andy Grover <agrover@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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@ -166,6 +166,7 @@ static int chap_server_compute_md5(
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{
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{
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char *endptr;
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char *endptr;
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unsigned long id;
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unsigned long id;
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unsigned char id_as_uchar;
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unsigned char digest[MD5_SIGNATURE_SIZE];
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unsigned char digest[MD5_SIGNATURE_SIZE];
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unsigned char type, response[MD5_SIGNATURE_SIZE * 2 + 2];
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unsigned char type, response[MD5_SIGNATURE_SIZE * 2 + 2];
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unsigned char identifier[10], *challenge = NULL;
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unsigned char identifier[10], *challenge = NULL;
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@ -355,7 +356,9 @@ static int chap_server_compute_md5(
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goto out;
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goto out;
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}
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}
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sg_init_one(&sg, &id, 1);
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/* To handle both endiannesses */
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id_as_uchar = id;
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sg_init_one(&sg, &id_as_uchar, 1);
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ret = crypto_hash_update(&desc, &sg, 1);
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ret = crypto_hash_update(&desc, &sg, 1);
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if (ret < 0) {
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if (ret < 0) {
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pr_err("crypto_hash_update() failed for id\n");
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pr_err("crypto_hash_update() failed for id\n");
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