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[CRYPTO] users: Fix up scatterlist conversion errors

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This patch fixes the errors made in the users of the crypto layer during
the sg_init_table conversion.  It also adds a few conversions that were
missing altogether.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu
2007-10-27 00:52:07 -07:00
committed by David S. Miller
parent a5a613a429
commit 68e3f5dd4d
13 changed files with 93 additions and 58 deletions
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34
net/sunrpc/auth_gss/gss_krb5_crypto.c
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@ -75,7 +75,7 @@ krb5_encrypt(
memcpy(local_iv, iv, crypto_blkcipher_ivsize(tfm));
memcpy(out, in, length);
sg_set_buf(sg, out, length);
sg_init_one(sg, out, length);
ret = crypto_blkcipher_encrypt_iv(&desc, sg, sg, length);
out:
@ -110,7 +110,7 @@ krb5_decrypt(
memcpy(local_iv,iv, crypto_blkcipher_ivsize(tfm));
memcpy(out, in, length);
sg_set_buf(sg, out, length);
sg_init_one(sg, out, length);
ret = crypto_blkcipher_decrypt_iv(&desc, sg, sg, length);
out:
@ -146,7 +146,7 @@ make_checksum(char *cksumname, char *header, int hdrlen, struct xdr_buf *body,
err = crypto_hash_init(&desc);
if (err)
goto out;
sg_set_buf(sg, header, hdrlen);
sg_init_one(sg, header, hdrlen);
err = crypto_hash_update(&desc, sg, hdrlen);
if (err)
goto out;
@ -188,8 +188,6 @@ encryptor(struct scatterlist *sg, void *data)
/* Worst case is 4 fragments: head, end of page 1, start
* of page 2, tail. Anything more is a bug. */
BUG_ON(desc->fragno > 3);
desc->infrags[desc->fragno] = *sg;
desc->outfrags[desc->fragno] = *sg;
page_pos = desc->pos - outbuf->head[0].iov_len;
if (page_pos >= 0 && page_pos < outbuf->page_len) {
@ -199,7 +197,10 @@ encryptor(struct scatterlist *sg, void *data)
} else {
in_page = sg_page(sg);
}
sg_assign_page(&desc->infrags[desc->fragno], in_page);
sg_set_page(&desc->infrags[desc->fragno], in_page, sg->length,
sg->offset);
sg_set_page(&desc->outfrags[desc->fragno], sg_page(sg), sg->length,
sg->offset);
desc->fragno++;
desc->fraglen += sg->length;
desc->pos += sg->length;
@ -210,10 +211,17 @@ encryptor(struct scatterlist *sg, void *data)
if (thislen == 0)
return 0;
sg_mark_end(desc->infrags, desc->fragno);
sg_mark_end(desc->outfrags, desc->fragno);
ret = crypto_blkcipher_encrypt_iv(&desc->desc, desc->outfrags,
desc->infrags, thislen);
if (ret)
return ret;
sg_init_table(desc->infrags, 4);
sg_init_table(desc->outfrags, 4);
if (fraglen) {
sg_set_page(&desc->outfrags[0], sg_page(sg), fraglen,
sg->offset + sg->length - fraglen);
@ -247,6 +255,9 @@ gss_encrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.fragno = 0;
desc.fraglen = 0;
sg_init_table(desc.infrags, 4);
sg_init_table(desc.outfrags, 4);
ret = xdr_process_buf(buf, offset, buf->len - offset, encryptor, &desc);
return ret;
}
@ -271,7 +282,8 @@ decryptor(struct scatterlist *sg, void *data)
/* Worst case is 4 fragments: head, end of page 1, start
* of page 2, tail. Anything more is a bug. */
BUG_ON(desc->fragno > 3);
desc->frags[desc->fragno] = *sg;
sg_set_page(&desc->frags[desc->fragno], sg_page(sg), sg->length,
sg->offset);
desc->fragno++;
desc->fraglen += sg->length;
@ -281,10 +293,15 @@ decryptor(struct scatterlist *sg, void *data)
if (thislen == 0)
return 0;
sg_mark_end(desc->frags, desc->fragno);
ret = crypto_blkcipher_decrypt_iv(&desc->desc, desc->frags,
desc->frags, thislen);
if (ret)
return ret;
sg_init_table(desc->frags, 4);
if (fraglen) {
sg_set_page(&desc->frags[0], sg_page(sg), fraglen,
sg->offset + sg->length - fraglen);
@ -312,6 +329,9 @@ gss_decrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.desc.flags = 0;
desc.fragno = 0;
desc.fraglen = 0;
sg_init_table(desc.frags, 4);
return xdr_process_buf(buf, offset, buf->len - offset, decryptor, &desc);
}