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Diffstat (limited to 'net/sunrpc/auth_gss/gss_krb5_crypto.c')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_crypto.c73
1 files changed, 4 insertions, 69 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
index 4c53896f1b0..10d05ea3721 100644
--- a/net/sunrpc/auth_gss/gss_krb5_crypto.c
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -43,6 +43,7 @@
#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
@@ -120,72 +121,6 @@ out:
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:
- return ret;
-}
-
-static int
checksummer(struct scatterlist *sg, void *data)
{
struct hash_desc *desc = data;
@@ -225,7 +160,7 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
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;
@@ -323,7 +258,7 @@ gss_encrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.fragno = 0;
desc.fraglen = 0;
- ret = process_xdr_buf(buf, offset, buf->len - offset, encryptor, &desc);
+ ret = xdr_process_buf(buf, offset, buf->len - offset, encryptor, &desc);
return ret;
}
@@ -389,7 +324,7 @@ gss_decrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.desc.flags = 0;
desc.fragno = 0;
desc.fraglen = 0;
- return process_xdr_buf(buf, offset, buf->len - offset, decryptor, &desc);
+ return xdr_process_buf(buf, offset, buf->len - offset, decryptor, &desc);
}
EXPORT_SYMBOL(gss_decrypt_xdr_buf);