sunrpc: make token header values less confusing

g_make_token_header() and g_token_size() add two too many, and
therefore their callers pass in "(logical_value - 2)" rather
than "logical_value" as hard-coded values which causes confusion.

This dates back to the original g_make_token_header which took an
optional token type (token_id) value and added it to the token.
This was removed, but the routine always adds room for the token_id
rather than not.

Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/sunrpc/auth_gss/gss_generic_token.c b/net/sunrpc/auth_gss/gss_generic_token.c
index ea8c92ecdae5..d83b881685fe 100644
--- a/net/sunrpc/auth_gss/gss_generic_token.c
+++ b/net/sunrpc/auth_gss/gss_generic_token.c
@@ -148,7 +148,7 @@ int
 g_token_size(struct xdr_netobj *mech, unsigned int body_size)
 {
 	/* set body_size to sequence contents size */
-	body_size += 4 + (int) mech->len;         /* NEED overflow check */
+	body_size += 2 + (int) mech->len;         /* NEED overflow check */
 	return(1 + der_length_size(body_size) + body_size);
 }
 
@@ -161,7 +161,7 @@ void
 g_make_token_header(struct xdr_netobj *mech, int body_size, unsigned char **buf)
 {
 	*(*buf)++ = 0x60;
-	der_write_length(buf, 4 + mech->len + body_size);
+	der_write_length(buf, 2 + mech->len + body_size);
 	*(*buf)++ = 0x06;
 	*(*buf)++ = (unsigned char) mech->len;
 	TWRITE_STR(*buf, mech->data, ((int) mech->len));