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authorJohannes Berg <johannes.berg@intel.com>2013-12-16 11:23:45 +0100
committerJohannes Berg <johannes.berg@intel.com>2013-12-16 11:23:45 +0100
commitc4de673b775e4db48cd2db6277e0c6714332ca0c (patch)
tree84f9e4728e6ccf257236d2ba063b6e784ec8b65d /net/sunrpc/auth_gss/gss_krb5_wrap.c
parentbafdc614a1f4f8be8cde41b8ab10ac17e67c1837 (diff)
parent55957fb7a0b61d8ab6ff3f04e279b8fc22b738fa (diff)
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Merge remote-tracking branch 'wireless-next/master' into mac80211-next
Diffstat (limited to 'net/sunrpc/auth_gss/gss_krb5_wrap.c')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_wrap.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index 1da52d1406fc..42560e55d978 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -489,7 +489,6 @@ static u32
gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
{
s32 now;
- u64 seqnum;
u8 *ptr;
u8 flags = 0x00;
u16 ec, rrc;
@@ -525,7 +524,10 @@ gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
ec = be16_to_cpup((__be16 *)(ptr + 4));
rrc = be16_to_cpup((__be16 *)(ptr + 6));
- seqnum = be64_to_cpup((__be64 *)(ptr + 8));
+ /*
+ * NOTE: the sequence number at ptr + 8 is skipped, rpcsec_gss
+ * doesn't want it checked; see page 6 of rfc 2203.
+ */
if (rrc != 0)
rotate_left(offset + 16, buf, rrc);
@@ -574,8 +576,8 @@ gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
buf->head[0].iov_len -= GSS_KRB5_TOK_HDR_LEN + headskip;
buf->len -= GSS_KRB5_TOK_HDR_LEN + headskip;
- /* Trim off the checksum blob */
- xdr_buf_trim(buf, GSS_KRB5_TOK_HDR_LEN + tailskip);
+ /* Trim off the trailing "extra count" and checksum blob */
+ xdr_buf_trim(buf, ec + GSS_KRB5_TOK_HDR_LEN + tailskip);
return GSS_S_COMPLETE;
}