/*
* Copyright 2008 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*/
#ifndef GSSAPI_EXT_H_
#define GSSAPI_EXT_H_
#include <gssapi/gssapi.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#if 0
/*
* Solaris extensions
*/
int KRB5_CALLCONV gssd_pname_to_uid
(char *,
gss_OID,
gss_OID,
uid_t *);
int KRB5_CALLCONV __gss_userok
(const gss_name_t /*name*/,
const char * /*username*/);
#endif
/*
* GGF extensions
*/
typedef struct gss_buffer_set_desc_struct {
size_t count;
gss_buffer_desc *elements;
} gss_buffer_set_desc, *gss_buffer_set_t;
#define GSS_C_NO_BUFFER_SET ((gss_buffer_set_t) 0)
OM_uint32 KRB5_CALLCONV gss_create_empty_buffer_set
(OM_uint32 * /*minor_status*/,
gss_buffer_set_t * /*buffer_set*/);
OM_uint32 KRB5_CALLCONV gss_add_buffer_set_member
(OM_uint32 * /*minor_status*/,
const gss_buffer_t /*member_buffer*/,
gss_buffer_set_t * /*buffer_set*/);
OM_uint32 KRB5_CALLCONV gss_release_buffer_set
(OM_uint32 * /*minor_status*/,
gss_buffer_set_t * /*buffer_set*/);
OM_uint32 KRB5_CALLCONV gss_inquire_sec_context_by_oid
(OM_uint32 * /*minor_status*/,
const gss_ctx_id_t /*context_handle*/,
const gss_OID /*desired_object*/,
gss_buffer_set_t * /*data_set*/);
OM_uint32 KRB5_CALLCONV gss_inquire_cred_by_oid
(OM_uint32 * /*minor_status*/,
const gss_cred_id_t /*cred_handle*/,
const gss_OID /*desired_object*/,
gss_buffer_set_t * /*data_set*/);
OM_uint32 KRB5_CALLCONV gss_set_sec_context_option
(OM_uint32 * /*minor_status*/,
gss_ctx_id_t * /*cred_handle*/,
const gss_OID /*desired_object*/,
const gss_buffer_t /*value*/);
/* XXX do these really belong in this header? */
OM_uint32 KRB5_CALLCONV gssspi_set_cred_option
(OM_uint32 * /*minor_status*/,
gss_cred_id_t /*cred*/,
const gss_OID /*desired_object*/,
const gss_buffer_t /*value*/);
OM_uint32 KRB5_CALLCONV gssspi_mech_invoke
(OM_uint32 * /*minor_status*/,
const gss_OID /*desired_mech*/,
const gss_OID /*desired_object*/,
gss_buffer_t /*value*/);
/*
* AEAD extensions
*/
OM_uint32 KRB5_CALLCONV gss_wrap_aead
(OM_uint32 * /*minor_status*/,
gss_ctx_id_t /*context_handle*/,
int /*conf_req_flag*/,
gss_qop_t /*qop_req*/,
gss_buffer_t /*input_assoc_buffer*/,
gss_buffer_t /*input_payload_buffer*/,
int * /*conf_state*/,
gss_buffer_t /*output_message_buffer*/);
OM_uint32 KRB5_CALLCONV gss_unwrap_aead
(OM_uint32 * /*minor_status*/,
gss_ctx_id_t /*context_handle*/,
gss_buffer_t /*input_message_buffer*/,
gss_buffer_t /*input_assoc_buffer*/,
gss_buffer_t /*output_payload_buffer*/,
int * /*conf_state*/,
gss_qop_t * /*qop_state*/);
/*
* SSPI extensions
*/
#define GSS_C_DCE_STYLE 0x1000
#define GSS_C_IDENTIFY_FLAG 0x2000
#define GSS_C_EXTENDED_ERROR_FLAG 0x4000
/*
* Returns a buffer set with the first member containing the
* session key for SSPI compatibility. The optional second
* member contains an OID identifying the session key type.
*/
GSS_DLLIMP extern gss_OID GSS_C_INQ_SSPI_SESSION_KEY;
OM_uint32 KRB5_CALLCONV gss_complete_auth_token
(OM_uint32 *minor_status,
const gss_ctx_id_t context_handle,
gss_buffer_t input_message_buffer);
typedef struct gss_iov_buffer_desc_struct {
OM_uint32 type;
gss_buffer_desc buffer;
} gss_iov_buffer_desc, *gss_iov_buffer_t;
#define GSS_C_NO_IOV_BUFFER ((gss_iov_buffer_t)0)
#define GSS_IOV_BUFFER_TYPE_EMPTY 0
#define GSS_IOV_BUFFER_TYPE_DATA 1 /* Packet data */
#define GSS_IOV_BUFFER_TYPE_HEADER 2 /* Mechanism header */
#define GSS_IOV_BUFFER_TYPE_MECH_PARAMS 3 /* Mechanism specific parameters */
#define GSS_IOV_BUFFER_TYPE_TRAILER 7 /* Mechanism trailer */
#define GSS_IOV_BUFFER_TYPE_PADDING 9 /* Padding */
#define GSS_IOV_BUFFER_TYPE_STREAM 10 /* Complete wrap token */
#define GSS_IOV_BUFFER_TYPE_SIGN_ONLY 11 /* Sign only packet data */
#define GSS_IOV_BUFFER_FLAG_MASK 0xFFFF0000
#define GSS_IOV_BUFFER_FLAG_ALLOCATE 0x00010000 /* indicates GSS should allocate */
#define GSS_IOV_BUFFER_FLAG_ALLOCATED 0x00020000 /* indicates caller should free */
#define GSS_IOV_BUFFER_TYPE(_type) ((_type) & ~(GSS_IOV_BUFFER_FLAG_MASK))
#define GSS_IOV_BUFFER_FLAGS(_type) ((_type) & GSS_IOV_BUFFER_FLAG_MASK)
/*
* Sign and optionally encrypt a sequence of buffers. The buffers
* shall be ordered HEADER | DATA | PADDING | TRAILER. Suitable
* space for the header, padding and trailer should be provided
* by calling gss_wrap_iov_length(), or the ALLOCATE flag should
* be set on those buffers.
*
* Encryption is in-place. SIGN_ONLY buffers are untouched. Only
* a single PADDING buffer should be provided. The order of the
* buffers in memory does not matter. Buffers in the IOV should
* be arranged in the order above, and in the case of multiple
* DATA buffers the sender and receiver should agree on the
* order.
*
* With GSS_C_DCE_STYLE it is acceptable to not provide PADDING
* and TRAILER, but the caller must guarantee the plaintext data
* being encrypted is correctly padded, otherwise an error will
* be returned.
*
* While applications that have knowledge of the underlying
* cryptosystem may request a specific configuration of data
* buffers, the only generally supported configurations are:
*
* HEADER | DATA | PADDING | TRAILER
*
* which will emit GSS_Wrap() compatible tokens, and:
*
* HEADER | SIGN_ONLY | DATA | PADDING | TRAILER
*
* for AEAD.
*
* The typical (special cased) usage for DCE is as follows:
*
* SIGN_ONLY_1 | DATA | SIGN_ONLY_2 | HEADER
*/
OM_uint32 KRB5_CALLCONV gss_wrap_iov
(
OM_uint32 *, /* minor_status */
gss_ctx_id_t, /* context_handle */
int, /* conf_req_flag */
gss_qop_t, /* qop_req */
int *, /* conf_state */
gss_iov_buffer_desc *, /* iov */
int); /* iov_count */
/*
* Verify and optionally decrypt a sequence of buffers. To process
* a GSS-API message without separate buffer, pass STREAM | DATA.
* Upon return DATA will contain the decrypted or integrity
* protected message. Only a single DATA buffer may be provided
* with this usage. DATA by default will point into STREAM, but if
* the ALLOCATE flag is set a copy will be returned.
*
* Otherwise, decryption is in-place. SIGN_ONLY buffers are
* untouched.
*/
OM_uint32 KRB5_CALLCONV gss_unwrap_iov
(
OM_uint32 *, /* minor_status */
gss_ctx_id_t, /* context_handle */
int *, /* conf_state */
gss_qop_t *, /* qop_state */
gss_iov_buffer_desc *, /* iov */
int); /* iov_count */
/*
* Query HEADER, PADDING and TRAILER buffer lengths. DATA buffers
* should be provided so the correct padding length can be determined.
*/
OM_uint32 KRB5_CALLCONV gss_wrap_iov_length
(
OM_uint32 *, /* minor_status */
gss_ctx_id_t, /* context_handle */
int, /* conf_req_flag */
gss_qop_t, /* qop_req */
int *, /* conf_state */
gss_iov_buffer_desc *, /* iov */
int); /* iov_count */
/*
* Release buffers that have the ALLOCATED flag set.
*/
OM_uint32 KRB5_CALLCONV gss_release_iov_buffer
(
OM_uint32 *, /* minor_status */
gss_iov_buffer_desc *, /* iov */
int); /* iov_count */
#ifdef __cplusplus
}
#endif
#endif /* GSSAPI_EXT_H_ */