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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2011 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_GSSAPI
#include "curl_gssapi.h"
#include "sendf.h"
static const char spnego_oid_bytes[] = "\x2b\x06\x01\x05\x05\x02";
gss_OID_desc Curl_spnego_mech_oid = { 6, &spnego_oid_bytes };
static const char krb5_oid_bytes[] = "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02";
gss_OID_desc Curl_krb5_mech_oid = { 9, &krb5_oid_bytes };
CURL_STATIC OM_uint32 Curl_gss_init_sec_context(
struct SessionHandle *data,
OM_uint32 *minor_status,
gss_ctx_id_t *context,
gss_name_t target_name,
gss_OID mech_type,
gss_channel_bindings_t input_chan_bindings,
gss_buffer_t input_token,
gss_buffer_t output_token,
const bool mutual_auth,
OM_uint32 *ret_flags)
{
OM_uint32 req_flags = GSS_C_REPLAY_FLAG;
if(mutual_auth)
req_flags |= GSS_C_MUTUAL_FLAG;
if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_POLICY_FLAG) {
#ifdef GSS_C_DELEG_POLICY_FLAG
req_flags |= GSS_C_DELEG_POLICY_FLAG;
#else
infof(data, "warning: support for CURLGSSAPI_DELEGATION_POLICY_FLAG not "
"compiled in\n");
#endif
}
if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_FLAG)
req_flags |= GSS_C_DELEG_FLAG;
return gss_init_sec_context(minor_status,
GSS_C_NO_CREDENTIAL, /* cred_handle */
context,
target_name,
mech_type,
req_flags,
0, /* time_req */
input_chan_bindings,
input_token,
NULL, /* actual_mech_type */
output_token,
ret_flags,
NULL /* time_rec */);
}
/*
* Curl_gss_log_error()
*
* This is used to log a GSS-API error status.
*
* Parameters:
*
* data [in] - The session handle.
* status [in] - The status code.
* prefix [in] - The prefix of the log message.
*/
CURL_STATIC void Curl_gss_log_error(struct SessionHandle *data, OM_uint32 status,
const char *prefix)
{
OM_uint32 maj_stat;
OM_uint32 min_stat;
OM_uint32 msg_ctx = 0;
gss_buffer_desc status_string;
char buf[1024];
size_t len;
snprintf(buf, sizeof(buf), "%s", prefix);
len = strlen(buf);
do {
maj_stat = gss_display_status(&min_stat,
status,
GSS_C_MECH_CODE,
GSS_C_NO_OID,
&msg_ctx,
&status_string);
if(sizeof(buf) > len + status_string.length + 1) {
snprintf(buf + len, sizeof(buf) - len,
": %s", (char*)status_string.value);
len += status_string.length;
}
gss_release_buffer(&min_stat, &status_string);
} while(!GSS_ERROR(maj_stat) && msg_ctx != 0);
infof(data, "%s\n", buf);
}
#endif /* HAVE_GSSAPI */
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