341 lines
10 KiB
C
341 lines
10 KiB
C
/*-
|
|
* Copyright (c) 2005 Doug Rabson
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
/*
|
|
* Copyright (c) 1998 - 2005 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
/*
|
|
* Copyright (c) 1998 - 2005 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <gssapi/gssapi.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
|
|
#include "mech_switch.h"
|
|
#include "utils.h"
|
|
|
|
static const char *
|
|
calling_error(OM_uint32 v)
|
|
{
|
|
static const char *msgs[] = {
|
|
NULL, /* 0 */
|
|
"A required input parameter could not be read.", /* */
|
|
"A required output parameter could not be written.", /* */
|
|
"A parameter was malformed"
|
|
};
|
|
|
|
v >>= GSS_C_CALLING_ERROR_OFFSET;
|
|
|
|
if (v == 0)
|
|
return "";
|
|
else if (v >= sizeof(msgs)/sizeof(*msgs))
|
|
return "unknown calling error";
|
|
else
|
|
return msgs[v];
|
|
}
|
|
|
|
static const char *
|
|
routine_error(OM_uint32 v)
|
|
{
|
|
static const char *msgs[] = {
|
|
"Function completed successfully", /* 0 */
|
|
"An unsupported mechanism was requested",
|
|
"An invalid name was supplied",
|
|
"A supplied name was of an unsupported type",
|
|
"Incorrect channel bindings were supplied",
|
|
"An invalid status code was supplied",
|
|
"A token had an invalid MIC",
|
|
"No credentials were supplied, "
|
|
"or the credentials were unavailable or inaccessible.",
|
|
"No context has been established",
|
|
"A token was invalid",
|
|
"A credential was invalid",
|
|
"The referenced credentials have expired",
|
|
"The context has expired",
|
|
"Miscellaneous failure (see text)",
|
|
"The quality-of-protection requested could not be provide",
|
|
"The operation is forbidden by local security policy",
|
|
"The operation or option is not available",
|
|
"The requested credential element already exists",
|
|
"The provided name was not a mechanism name.",
|
|
};
|
|
|
|
v >>= GSS_C_ROUTINE_ERROR_OFFSET;
|
|
|
|
if (v >= sizeof(msgs)/sizeof(*msgs))
|
|
return "unknown routine error";
|
|
else
|
|
return msgs[v];
|
|
}
|
|
|
|
static const char *
|
|
supplementary_error(OM_uint32 v)
|
|
{
|
|
static const char *msgs[] = {
|
|
"normal completion",
|
|
"continuation call to routine required",
|
|
"duplicate per-message token detected",
|
|
"timed-out per-message token detected",
|
|
"reordered (early) per-message token detected",
|
|
"skipped predecessor token(s) detected"
|
|
};
|
|
|
|
v >>= GSS_C_SUPPLEMENTARY_OFFSET;
|
|
|
|
if (v >= sizeof(msgs)/sizeof(*msgs))
|
|
return "unknown routine error";
|
|
else
|
|
return msgs[v];
|
|
}
|
|
|
|
#if defined(__sparc64__) || defined(__arm__) || defined(__mips__)
|
|
|
|
/*
|
|
* These platforms don't support TLS on FreeBSD - threads will just
|
|
* have to step on each other's error values for now.
|
|
*/
|
|
#define __thread
|
|
|
|
#endif
|
|
|
|
struct mg_thread_ctx {
|
|
gss_OID mech;
|
|
OM_uint32 maj_stat;
|
|
OM_uint32 min_stat;
|
|
gss_buffer_desc maj_error;
|
|
gss_buffer_desc min_error;
|
|
};
|
|
static __thread struct mg_thread_ctx last_error_context;
|
|
|
|
static OM_uint32
|
|
_gss_mg_get_error(const gss_OID mech, OM_uint32 type,
|
|
OM_uint32 value, gss_buffer_t string)
|
|
{
|
|
struct mg_thread_ctx *mg;
|
|
|
|
mg = &last_error_context;
|
|
|
|
if (mech != NULL && gss_oid_equal(mg->mech, mech) == 0)
|
|
return (GSS_S_BAD_STATUS);
|
|
|
|
switch (type) {
|
|
case GSS_C_GSS_CODE: {
|
|
if (value != mg->maj_stat || mg->maj_error.length == 0)
|
|
break;
|
|
string->value = malloc(mg->maj_error.length);
|
|
string->length = mg->maj_error.length;
|
|
memcpy(string->value, mg->maj_error.value,
|
|
mg->maj_error.length);
|
|
return (GSS_S_COMPLETE);
|
|
}
|
|
case GSS_C_MECH_CODE: {
|
|
if (value != mg->min_stat || mg->min_error.length == 0)
|
|
break;
|
|
string->value = malloc(mg->min_error.length);
|
|
string->length = mg->min_error.length;
|
|
memcpy(string->value, mg->min_error.value,
|
|
mg->min_error.length);
|
|
return (GSS_S_COMPLETE);
|
|
}
|
|
}
|
|
string->value = NULL;
|
|
string->length = 0;
|
|
return (GSS_S_BAD_STATUS);
|
|
}
|
|
|
|
void
|
|
_gss_mg_error(struct _gss_mech_switch *m, OM_uint32 maj, OM_uint32 min)
|
|
{
|
|
OM_uint32 major_status, minor_status;
|
|
OM_uint32 message_content;
|
|
struct mg_thread_ctx *mg;
|
|
|
|
mg = &last_error_context;
|
|
|
|
gss_release_buffer(&minor_status, &mg->maj_error);
|
|
gss_release_buffer(&minor_status, &mg->min_error);
|
|
|
|
mg->mech = &m->gm_mech_oid;
|
|
mg->maj_stat = maj;
|
|
mg->min_stat = min;
|
|
|
|
major_status = m->gm_display_status(&minor_status,
|
|
maj,
|
|
GSS_C_GSS_CODE,
|
|
&m->gm_mech_oid,
|
|
&message_content,
|
|
&mg->maj_error);
|
|
if (GSS_ERROR(major_status)) {
|
|
mg->maj_error.value = NULL;
|
|
mg->maj_error.length = 0;
|
|
}
|
|
major_status = m->gm_display_status(&minor_status,
|
|
min,
|
|
GSS_C_MECH_CODE,
|
|
&m->gm_mech_oid,
|
|
&message_content,
|
|
&mg->min_error);
|
|
if (GSS_ERROR(major_status)) {
|
|
mg->min_error.value = NULL;
|
|
mg->min_error.length = 0;
|
|
}
|
|
}
|
|
|
|
OM_uint32
|
|
gss_display_status(OM_uint32 *minor_status,
|
|
OM_uint32 status_value,
|
|
int status_type,
|
|
const gss_OID mech_type,
|
|
OM_uint32 *message_content,
|
|
gss_buffer_t status_string)
|
|
{
|
|
OM_uint32 major_status;
|
|
|
|
_gss_buffer_zero(status_string);
|
|
*message_content = 0;
|
|
|
|
major_status = _gss_mg_get_error(mech_type, status_type,
|
|
status_value, status_string);
|
|
if (major_status == GSS_S_COMPLETE) {
|
|
|
|
*message_content = 0;
|
|
*minor_status = 0;
|
|
return (GSS_S_COMPLETE);
|
|
}
|
|
|
|
*minor_status = 0;
|
|
switch (status_type) {
|
|
case GSS_C_GSS_CODE: {
|
|
char *buf;
|
|
|
|
if (GSS_SUPPLEMENTARY_INFO(status_value))
|
|
asprintf(&buf, "%s", supplementary_error(
|
|
GSS_SUPPLEMENTARY_INFO(status_value)));
|
|
else
|
|
asprintf (&buf, "%s %s",
|
|
calling_error(GSS_CALLING_ERROR(status_value)),
|
|
routine_error(GSS_ROUTINE_ERROR(status_value)));
|
|
|
|
if (buf == NULL)
|
|
break;
|
|
|
|
status_string->length = strlen(buf);
|
|
status_string->value = buf;
|
|
|
|
return (GSS_S_COMPLETE);
|
|
}
|
|
case GSS_C_MECH_CODE: {
|
|
OM_uint32 maj_junk, min_junk;
|
|
gss_buffer_desc oid;
|
|
char *buf;
|
|
|
|
maj_junk = gss_oid_to_str(&min_junk, mech_type, &oid);
|
|
if (maj_junk != GSS_S_COMPLETE) {
|
|
oid.value = strdup("unknown");
|
|
oid.length = 7;
|
|
}
|
|
|
|
asprintf (&buf, "unknown mech-code %lu for mech %.*s",
|
|
(unsigned long)status_value,
|
|
(int)oid.length, (char *)oid.value);
|
|
if (maj_junk == GSS_S_COMPLETE)
|
|
gss_release_buffer(&min_junk, &oid);
|
|
|
|
if (buf == NULL)
|
|
break;
|
|
|
|
status_string->length = strlen(buf);
|
|
status_string->value = buf;
|
|
|
|
return (GSS_S_COMPLETE);
|
|
}
|
|
}
|
|
_gss_buffer_zero(status_string);
|
|
return (GSS_S_BAD_STATUS);
|
|
}
|