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Add wrap support, interrop with itself but not w2k3s-sp1

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@18172 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2006-09-25 21:42:28 +00:00
parent 0ecd7e58ad
commit 26ae75721a
1 changed files with 20 additions and 7 deletions
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27
lib/gssapi/krb5/arcfour.c
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@@ -60,8 +60,8 @@ RCSID("$Id$");
/*
* WRAP in DCE-style have a fixed size header and no padding, the oid
* and length over the WRAP header is a total of
* GSS_ARCFOUR_WRAP_TOKEN_DCE_DER_HEADER_SIZE byte (ie total of 43
* bytes overhead).
* GSS_ARCFOUR_WRAP_TOKEN_DCE_DER_HEADER_SIZE byte (ie total of 45
* bytes overhead, remember the 2 bytes from APPL [0] SEQ).
*/
#define GSS_ARCFOUR_WRAP_TOKEN_SIZE 32
@@ -354,9 +354,19 @@ _gssapi_wrap_arcfour(OM_uint32 * minor_status,
if (conf_state)
*conf_state = 0;
datalen = input_message_buffer->length + 1 /* padding */;
len = datalen + GSS_ARCFOUR_WRAP_TOKEN_SIZE;
_gssapi_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM);
datalen = input_message_buffer->length;
if ((context_handle->flags & GSS_C_DCE_STYLE) == 0) {
datalen += 1 /* padding */;
len = datalen + GSS_ARCFOUR_WRAP_TOKEN_SIZE;
_gssapi_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM);
} else {
len = GSS_ARCFOUR_WRAP_TOKEN_SIZE;
_gssapi_encap_length(len, &len, &total_len, GSS_KRB5_MECHANISM);
assert(total_len == GSS_ARCFOUR_WRAP_TOKEN_SIZE + GSS_ARCFOUR_WRAP_TOKEN_DCE_DER_HEADER_SIZE);
assert(total_len - len == 2);
total_len += datalen;
}
output_message_buffer->length = total_len;
output_message_buffer->value = malloc (total_len);
@@ -407,7 +417,9 @@ _gssapi_wrap_arcfour(OM_uint32 * minor_status,
/* p points to data */
p = p0 + GSS_ARCFOUR_WRAP_TOKEN_SIZE;
memcpy(p, input_message_buffer->value, input_message_buffer->length);
p[input_message_buffer->length] = 1; /* PADDING */
if ((context_handle->flags & GSS_C_DCE_STYLE) == 0)
p[input_message_buffer->length] = 1; /* PADDING */
ret = arcfour_mic_cksum(key, KRB5_KU_USAGE_SEAL,
p0 + 16, 8, /* SGN_CKSUM */
@@ -624,7 +636,8 @@ OM_uint32 _gssapi_unwrap_arcfour(OM_uint32 *minor_status,
return ret;
}
output_message_buffer->length -= padlen;
}
} else
padlen = 0;
ret = arcfour_mic_cksum(key, KRB5_KU_USAGE_SEAL,
cksum_data, sizeof(cksum_data),