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Diffstat (limited to 'net/sunrpc/auth_gss/gss_krb5_wrap.c')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_wrap.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index af777cf9f251..89d1f3e14128 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -121,12 +121,14 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
{
struct krb5_ctx *kctx = ctx->internal_ctx_id;
s32 checksum_type;
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
int blocksize = 0, plainlen;
unsigned char *ptr, *krb5_hdr, *msg_start;
s32 now;
int headlen;
struct page **tmp_pages;
+ u32 seq_send;
dprintk("RPC: gss_wrap_kerberos\n");
@@ -205,23 +207,22 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
BUG();
}
- kfree(md5cksum.data);
+ spin_lock(&krb5_seq_lock);
+ seq_send = kctx->seq_send++;
+ spin_unlock(&krb5_seq_lock);
/* XXX would probably be more efficient to compute checksum
* and encrypt at the same time: */
if ((krb5_make_seq_num(kctx->seq, kctx->initiate ? 0 : 0xff,
- kctx->seq_send, krb5_hdr + 16, krb5_hdr + 8)))
+ seq_send, krb5_hdr + 16, krb5_hdr + 8)))
goto out_err;
if (gss_encrypt_xdr_buf(kctx->enc, buf, offset + headlen - blocksize,
pages))
goto out_err;
- kctx->seq_send++;
-
return ((kctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE);
out_err:
- if (md5cksum.data) kfree(md5cksum.data);
return GSS_S_FAILURE;
}
@@ -232,7 +233,8 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
int signalg;
int sealalg;
s32 checksum_type;
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
s32 now;
int direction;
s32 seqnum;
@@ -358,6 +360,5 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
ret = GSS_S_COMPLETE;
out:
- if (md5cksum.data) kfree(md5cksum.data);
return ret;
}