#include <linux/highmem.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/gss_krb5.h>
+#include <linux/sunrpc/xdr.h>
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_AUTH
int length)
{
u32 ret = -EINVAL;
- struct scatterlist sg[1];
+ struct scatterlist sg[1];
u8 local_iv[16] = {0};
struct blkcipher_desc desc = { .tfm = tfm, .info = local_iv };
goto out;
if (crypto_blkcipher_ivsize(tfm) > 16) {
- dprintk("RPC: gss_k5encrypt: tfm iv size to large %d\n",
- crypto_blkcipher_ivsize(tfm));
+ dprintk("RPC: gss_k5encrypt: tfm iv size too large %d\n",
+ crypto_blkcipher_ivsize(tfm));
goto out;
}
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:
- dprintk("RPC: krb5_encrypt returns %d\n",ret);
+ dprintk("RPC: krb5_encrypt returns %d\n", ret);
return ret;
}
-EXPORT_SYMBOL(krb5_encrypt);
-
u32
krb5_decrypt(
struct crypto_blkcipher *tfm,
goto out;
if (crypto_blkcipher_ivsize(tfm) > 16) {
- dprintk("RPC: gss_k5decrypt: tfm iv size to large %d\n",
+ dprintk("RPC: gss_k5decrypt: tfm iv size too large %d\n",
crypto_blkcipher_ivsize(tfm));
goto out;
}
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:
- dprintk("RPC: gss_k5decrypt returns %d\n",ret);
- return ret;
-}
-
-EXPORT_SYMBOL(krb5_decrypt);
-
-static int
-process_xdr_buf(struct xdr_buf *buf, int offset, int len,
- int (*actor)(struct scatterlist *, void *), void *data)
-{
- int i, page_len, thislen, page_offset, ret = 0;
- struct scatterlist sg[1];
-
- if (offset >= buf->head[0].iov_len) {
- offset -= buf->head[0].iov_len;
- } else {
- thislen = buf->head[0].iov_len - offset;
- if (thislen > len)
- thislen = len;
- sg_set_buf(sg, buf->head[0].iov_base + offset, thislen);
- ret = actor(sg, data);
- if (ret)
- goto out;
- offset = 0;
- len -= thislen;
- }
- if (len == 0)
- goto out;
-
- if (offset >= buf->page_len) {
- offset -= buf->page_len;
- } else {
- page_len = buf->page_len - offset;
- if (page_len > len)
- page_len = len;
- len -= page_len;
- page_offset = (offset + buf->page_base) & (PAGE_CACHE_SIZE - 1);
- i = (offset + buf->page_base) >> PAGE_CACHE_SHIFT;
- thislen = PAGE_CACHE_SIZE - page_offset;
- do {
- if (thislen > page_len)
- thislen = page_len;
- sg->page = buf->pages[i];
- sg->offset = page_offset;
- sg->length = thislen;
- ret = actor(sg, data);
- if (ret)
- goto out;
- page_len -= thislen;
- i++;
- page_offset = 0;
- thislen = PAGE_CACHE_SIZE;
- } while (page_len != 0);
- offset = 0;
- }
- if (len == 0)
- goto out;
-
- if (offset < buf->tail[0].iov_len) {
- thislen = buf->tail[0].iov_len - offset;
- if (thislen > len)
- thislen = len;
- sg_set_buf(sg, buf->tail[0].iov_base + offset, thislen);
- ret = actor(sg, data);
- len -= thislen;
- }
- if (len != 0)
- ret = -EINVAL;
-out:
+ dprintk("RPC: gss_k5decrypt returns %d\n",ret);
return ret;
}
/* checksum the plaintext data and hdrlen bytes of the token header */
s32
-make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
+make_checksum(char *cksumname, char *header, int hdrlen, struct xdr_buf *body,
int body_offset, struct xdr_netobj *cksum)
{
- char *cksumname;
struct hash_desc desc; /* XXX add to ctx? */
struct scatterlist sg[1];
int err;
- switch (cksumtype) {
- case CKSUMTYPE_RSA_MD5:
- cksumname = "md5";
- break;
- default:
- dprintk("RPC: krb5_make_checksum:"
- " unsupported checksum %d", cksumtype);
- return GSS_S_FAILURE;
- }
desc.tfm = crypto_alloc_hash(cksumname, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(desc.tfm))
return GSS_S_FAILURE;
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;
- err = process_xdr_buf(body, body_offset, body->len - body_offset,
+ err = xdr_process_buf(body, body_offset, body->len - body_offset,
checksummer, &desc);
if (err)
goto out;
return err ? GSS_S_FAILURE : 0;
}
-EXPORT_SYMBOL(make_checksum);
-
struct encryptor_desc {
u8 iv[8]; /* XXX hard-coded blocksize */
struct blkcipher_desc desc;
/* 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) {
int i = (page_pos + outbuf->page_base) >> PAGE_CACHE_SHIFT;
in_page = desc->pages[i];
} else {
- in_page = sg->page;
+ in_page = sg_page(sg);
}
- desc->infrags[desc->fragno].page = 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;
if (thislen == 0)
return 0;
+ sg_mark_end(&desc->infrags[desc->fragno - 1]);
+ sg_mark_end(&desc->outfrags[desc->fragno - 1]);
+
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) {
- desc->outfrags[0].page = sg->page;
- desc->outfrags[0].offset = sg->offset + sg->length - fraglen;
- desc->outfrags[0].length = fraglen;
+ sg_set_page(&desc->outfrags[0], sg_page(sg), fraglen,
+ sg->offset + sg->length - fraglen);
desc->infrags[0] = desc->outfrags[0];
- desc->infrags[0].page = in_page;
+ sg_assign_page(&desc->infrags[0], in_page);
desc->fragno = 1;
desc->fraglen = fraglen;
} else {
desc.fragno = 0;
desc.fraglen = 0;
- ret = process_xdr_buf(buf, offset, buf->len - offset, encryptor, &desc);
+ 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;
}
-EXPORT_SYMBOL(gss_encrypt_xdr_buf);
-
struct decryptor_desc {
u8 iv[8]; /* XXX hard-coded blocksize */
struct blkcipher_desc desc;
/* 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;
if (thislen == 0)
return 0;
+ sg_mark_end(&desc->frags[desc->fragno - 1]);
+
ret = crypto_blkcipher_decrypt_iv(&desc->desc, desc->frags,
desc->frags, thislen);
if (ret)
return ret;
+
+ sg_init_table(desc->frags, 4);
+
if (fraglen) {
- desc->frags[0].page = sg->page;
- desc->frags[0].offset = sg->offset + sg->length - fraglen;
- desc->frags[0].length = fraglen;
+ sg_set_page(&desc->frags[0], sg_page(sg), fraglen,
+ sg->offset + sg->length - fraglen);
desc->fragno = 1;
desc->fraglen = fraglen;
} else {
desc.desc.flags = 0;
desc.fragno = 0;
desc.fraglen = 0;
- return process_xdr_buf(buf, offset, buf->len - offset, decryptor, &desc);
-}
-EXPORT_SYMBOL(gss_decrypt_xdr_buf);
+ sg_init_table(desc.frags, 4);
+
+ return xdr_process_buf(buf, offset, buf->len - offset, decryptor, &desc);
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff