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authorKevin Coffman <kwc@citi.umich.edu>2010-03-17 13:03:02 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-05-14 15:09:19 -0400
commit8b23707612cffdba694dcd18aa8a018918aa86dc (patch)
tree3dd484658768c0a710b252a674c697124380b223 /net/sunrpc/auth_gss/gss_krb5_unseal.c
parentbf6d359c508cf83401c942262a9749752598394d (diff)
gssd_krb5: arcfour-hmac support
For arcfour-hmac support, the make_checksum function needs a usage field to correctly calculate the checksum differently for MIC and WRAP tokens. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: Steve Dickson <steved@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/auth_gss/gss_krb5_unseal.c')
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_unseal.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/net/sunrpc/auth_gss/gss_krb5_unseal.c b/net/sunrpc/auth_gss/gss_krb5_unseal.c
index 4ede4cc4391..ef91366e3de 100644
--- a/net/sunrpc/auth_gss/gss_krb5_unseal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_unseal.c
@@ -115,7 +115,7 @@ gss_verify_mic_v1(struct krb5_ctx *ctx,
cksumkey = NULL;
if (make_checksum(ctx, ptr, 8, message_buffer, 0,
- cksumkey, &md5cksum))
+ cksumkey, KG_USAGE_SIGN, &md5cksum))
return GSS_S_FAILURE;
if (memcmp(md5cksum.data, ptr + GSS_KRB5_TOK_HDR_LEN,
@@ -154,6 +154,7 @@ gss_verify_mic_v2(struct krb5_ctx *ctx,
u8 *cksumkey;
u8 flags;
int i;
+ unsigned int cksum_usage;
dprintk("RPC: %s\n", __func__);
@@ -174,13 +175,16 @@ gss_verify_mic_v2(struct krb5_ctx *ctx,
if (ptr[i] != 0xff)
return GSS_S_DEFECTIVE_TOKEN;
- if (ctx->initiate)
+ if (ctx->initiate) {
cksumkey = ctx->acceptor_sign;
- else
+ cksum_usage = KG_USAGE_ACCEPTOR_SIGN;
+ } else {
cksumkey = ctx->initiator_sign;
+ cksum_usage = KG_USAGE_INITIATOR_SIGN;
+ }
if (make_checksum_v2(ctx, ptr, GSS_KRB5_TOK_HDR_LEN, message_buffer, 0,
- cksumkey, &cksumobj))
+ cksumkey, cksum_usage, &cksumobj))
return GSS_S_FAILURE;
if (memcmp(cksumobj.data, ptr + GSS_KRB5_TOK_HDR_LEN,