diff options
Diffstat (limited to 'source4/heimdal/lib/gssapi/krb5/unwrap.c')
| -rw-r--r-- | source4/heimdal/lib/gssapi/krb5/unwrap.c | 52 |
1 files changed, 38 insertions, 14 deletions
diff --git a/source4/heimdal/lib/gssapi/krb5/unwrap.c b/source4/heimdal/lib/gssapi/krb5/unwrap.c index eec4078a70..c287469e96 100644 --- a/source4/heimdal/lib/gssapi/krb5/unwrap.c +++ b/source4/heimdal/lib/gssapi/krb5/unwrap.c @@ -59,10 +59,17 @@ unwrap_des OM_uint32 ret; int cstate; int cmp; + int token_len; + + if (IS_DCE_STYLE(context_handle)) { + token_len = 22 + 8 + 15; /* 45 */ + } else { + token_len = input_message_buffer->length; + } p = input_message_buffer->value; ret = _gsskrb5_verify_header (&p, - input_message_buffer->length, + token_len, "\x02\x01", GSS_KRB5_MECHANISM); if (ret) @@ -105,12 +112,17 @@ unwrap_des memset (deskey, 0, sizeof(deskey)); memset (&schedule, 0, sizeof(schedule)); } - /* check pad */ - ret = _gssapi_verify_pad(input_message_buffer, - input_message_buffer->length - len, - &padlength); - if (ret) - return ret; + + if (IS_DCE_STYLE(context_handle)) { + padlength = 0; + } else { + /* check pad */ + ret = _gssapi_verify_pad(input_message_buffer, + input_message_buffer->length - len, + &padlength); + if (ret) + return ret; + } MD5_Init (&md5); MD5_Update (&md5, p - 24, 8); @@ -195,10 +207,17 @@ unwrap_des3 krb5_crypto crypto; Checksum csum; int cmp; + int token_len; + + if (IS_DCE_STYLE(context_handle)) { + token_len = 34 + 8 + 15; /* 57 */ + } else { + token_len = input_message_buffer->length; + } p = input_message_buffer->value; ret = _gsskrb5_verify_header (&p, - input_message_buffer->length, + token_len, "\x02\x01", GSS_KRB5_MECHANISM); if (ret) @@ -245,12 +264,17 @@ unwrap_des3 memcpy (p, tmp.data, tmp.length); krb5_data_free(&tmp); } - /* check pad */ - ret = _gssapi_verify_pad(input_message_buffer, - input_message_buffer->length - len, - &padlength); - if (ret) - return ret; + + if (IS_DCE_STYLE(context_handle)) { + padlength = 0; + } else { + /* check pad */ + ret = _gssapi_verify_pad(input_message_buffer, + input_message_buffer->length - len, + &padlength); + if (ret) + return ret; + } /* verify sequence number */ |