Use u16 pointer in setup_token and setup_token_v2. None of the fields
are actually handled as __be16, so this simplifies the code a bit. Also
get rid of some unneeded pointer increments.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
---
net/sunrpc/auth_gss/gss_krb5_seal.c | 28 +++++++++++++++++-----------
1 file changed, 17 insertions(+), 11 deletions(-)
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c
index 62ae3273186c..42768e5c3994 100644
--- a/net/sunrpc/auth_gss/gss_krb5_seal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_seal.c
@@ -70,31 +70,37 @@
DEFINE_SPINLOCK(krb5_seq_lock);
-static char *
+static void *
setup_token(struct krb5_ctx *ctx, struct xdr_netobj *token)
{
- __be16 *ptr, *krb5_hdr;
+ u16 *ptr;
+ void *krb5_hdr;
int body_size = GSS_KRB5_TOK_HDR_LEN + ctx->gk5e->cksumlength;
token->len = g_token_size(&ctx->mech_used, body_size);
- ptr = (__be16 *)token->data;
+ ptr = (u16 *)token->data;
g_make_token_header(&ctx->mech_used, body_size, (unsigned char **)&ptr);
/* ptr now at start of header described in rfc 1964, section 1.2.1: */
krb5_hdr = ptr;
*ptr++ = KG_TOK_MIC_MSG;
- *ptr++ = cpu_to_le16(ctx->gk5e->signalg);
+ /*
+ * signalg is stored as if it were converted from LE to host endian, even
+ * though it's an opaque pair of bytes according to the RFC.
+ */
+ *ptr++ = (__force u16)cpu_to_le16(ctx->gk5e->signalg);
*ptr++ = SEAL_ALG_NONE;
- *ptr++ = 0xffff;
+ *ptr = 0xffff;
- return (char *)krb5_hdr;
+ return krb5_hdr;
}
static void *
setup_token_v2(struct krb5_ctx *ctx, struct xdr_netobj *token)
{
- __be16 *ptr, *krb5_hdr;
+ u16 *ptr;
+ void *krb5_hdr;
u8 *p, flags = 0x00;
if ((ctx->flags & KRB5_CTX_FLAG_INITIATOR) == 0)
@@ -104,15 +110,15 @@ setup_token_v2(struct krb5_ctx *ctx, struct xdr_netobj *token)
/* Per rfc 4121, sec 4.2.6.1, there is no header,
* just start the token */
- krb5_hdr = ptr = (__be16 *)token->data;
+ krb5_hdr = ptr = (u16 *)token->data;
*ptr++ = KG2_TOK_MIC;
p = (u8 *)ptr;
*p++ = flags;
*p++ = 0xff;
- ptr = (__be16 *)p;
- *ptr++ = 0xffff;
+ ptr = (u16 *)p;
*ptr++ = 0xffff;
+ *ptr = 0xffff;
token->len = GSS_KRB5_TOK_HDR_LEN + ctx->gk5e->cksumlength;
return krb5_hdr;
@@ -181,7 +187,7 @@ gss_get_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *text,
spin_lock(&krb5_seq_lock);
seq_send = ctx->seq_send64++;
spin_unlock(&krb5_seq_lock);
- *((u64 *)(krb5_hdr + 8)) = cpu_to_be64(seq_send);
+ *((__be64 *)(krb5_hdr + 8)) = cpu_to_be64(seq_send);
if (ctx->initiate) {
cksumkey = ctx->initiator_sign;
--
1.9.3
--
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