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/* * 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 */ /* * Solaris extensions */ #ifndef _WIN32 OM_uint32 KRB5_CALLCONV gss_pname_to_uid (OM_uint32 *minor, const gss_name_t name, const gss_OID mech_type, uid_t *uidOut); #endif /** * Provides a platform-specific name for a GSSAPI name as interpreted by a * given mechanism. * * @param [out] minor Minor status code * @param [in] name The gss name resulting from accept_sec_context * @param [in] mech_type The mechanism that will be asked to map @a name to a * local name * @param [out] localname Caller-allocated buffer to be filled in with the * local name on success */ OM_uint32 KRB5_CALLCONV gss_localname (OM_uint32 *minor, const gss_name_t name, gss_const_OID mech_type, gss_buffer_t localname); /** * Determine whether a mechanism name is authorized to act as a username. * * @param [in] name Mechanism name * @param [in] username System username * * This is a simple wrapper around gss_authorize_localname(). It only supports * system usernames as local names, and cannot distinguish between lack of * authorization and other errors. * * @retval 1 @a name is authorized to act as @a username * @retval 0 @a name is not authorized or an error occurred */ int KRB5_CALLCONV gss_userok(const gss_name_t name, const char *username); /** * Determine whether a mechanism name is authorized to act as a local name. * * @param [out] minor Minor status code * @param [in] name Mechanism name * @param [in] user Local name * * @a name is a mechanism name, typically the result of a completed * gss_accept_sec_context(). @a user is an internal name representing a local * name, such as a name imported by gss_import_name() with an @a * input_name_type of @c GSS_C_NT_USER_NAME. * * @return Return GSS_S_COMPLETE if @a name is authorized to act as @a user, * GSS_S_UNAUTHORIZED if not, or an appropriate GSS error code if an error * occurred. * * @sa gss_userok */ OM_uint32 KRB5_CALLCONV gss_authorize_localname(OM_uint32 *minor, const gss_name_t name, const gss_name_t user); OM_uint32 KRB5_CALLCONV gss_acquire_cred_with_password( OM_uint32 *, /* minor_status */ const gss_name_t, /* desired_name */ const gss_buffer_t, /* password */ OM_uint32, /* time_req */ const gss_OID_set, /* desired_mechs */ gss_cred_usage_t, /* cred_usage */ gss_cred_id_t *, /* output_cred_handle */ gss_OID_set *, /* actual_mechs */ OM_uint32 *); /* time_rec */ OM_uint32 KRB5_CALLCONV gss_add_cred_with_password( OM_uint32 *, /* minor_status */ const gss_cred_id_t,/* input_cred_handle */ const gss_name_t, /* desired_name */ const gss_OID, /* desired_mech */ const gss_buffer_t, /* password */ gss_cred_usage_t, /* cred_usage */ OM_uint32, /* initiator_time_req */ OM_uint32, /* acceptor_time_req */ gss_cred_id_t *, /* output_cred_handle */ gss_OID_set *, /* actual_mechs */ OM_uint32 *, /* initiator_time_rec */ OM_uint32 *); /* acceptor_time_rec */ /* * 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*/); /* * Export import cred extensions from GGF, but using Heimdal's signatures */ OM_uint32 KRB5_CALLCONV gss_export_cred (OM_uint32 * /* minor_status */, gss_cred_id_t /* cred_handle */, gss_buffer_t /* token */); OM_uint32 KRB5_CALLCONV gss_import_cred (OM_uint32 * /* minor_status */, gss_buffer_t /* token */, gss_cred_id_t * /* cred_handle */); /* * Heimdal extension */ OM_uint32 KRB5_CALLCONV gss_set_cred_option (OM_uint32 * /*minor_status*/, gss_cred_id_t * /*cred*/, const gss_OID /*desired_object*/, const gss_buffer_t /*value*/); /* * Call the given method on the given mechanism */ 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; GSS_DLLIMP extern gss_OID GSS_C_INQ_NEGOEX_KEY; GSS_DLLIMP extern gss_OID GSS_C_INQ_NEGOEX_VERIFY_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_TYPE_MIC_TOKEN 12 /* MIC token destination */ #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 */ /* * Produce a GSSAPI MIC token for a sequence of buffers. All SIGN_ONLY and * DATA buffers will be signed, in the order they appear. One MIC_TOKEN buffer * must be included for the result. Suitable space should be provided for the * MIC_TOKEN buffer by calling gss_get_mic_iov_length, or the ALLOCATE flag * should be set on that buffer. If the ALLOCATE flag is used, use * gss_release_iov_buffer to free the allocated buffer within the iov list when * it is no longer needed. */ OM_uint32 KRB5_CALLCONV gss_get_mic_iov ( OM_uint32 *, /* minor_status */ gss_ctx_id_t, /* context_handle */ gss_qop_t, /* qop_req */ gss_iov_buffer_desc *, /* iov */ int); /* iov_count */ /* * Query the MIC_TOKEN buffer length within the iov list. */ OM_uint32 KRB5_CALLCONV gss_get_mic_iov_length( OM_uint32 *, /* minor_status */ gss_ctx_id_t, /* context_handle */ gss_qop_t, /* qop_req */ gss_iov_buffer_desc *, /* iov */ int); /* iov_count */ /* * Verify the MIC_TOKEN buffer within the iov list against the SIGN_ONLY and * DATA buffers in the order they appear. Return values are the same as for * gss_verify_mic. */ OM_uint32 KRB5_CALLCONV gss_verify_mic_iov ( OM_uint32 *, /* minor_status */ gss_ctx_id_t, /* context_handle */ gss_qop_t *, /* qop_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 */ /* * Protocol transition */ OM_uint32 KRB5_CALLCONV gss_acquire_cred_impersonate_name( OM_uint32 *, /* minor_status */ const gss_cred_id_t, /* impersonator_cred_handle */ const gss_name_t, /* desired_name */ OM_uint32, /* time_req */ const gss_OID_set, /* desired_mechs */ gss_cred_usage_t, /* cred_usage */ gss_cred_id_t *, /* output_cred_handle */ gss_OID_set *, /* actual_mechs */ OM_uint32 *); /* time_rec */ OM_uint32 KRB5_CALLCONV gss_add_cred_impersonate_name( OM_uint32 *, /* minor_status */ gss_cred_id_t, /* input_cred_handle */ const gss_cred_id_t, /* impersonator_cred_handle */ const gss_name_t, /* desired_name */ const gss_OID, /* desired_mech */ gss_cred_usage_t, /* cred_usage */ OM_uint32, /* initiator_time_req */ OM_uint32, /* acceptor_time_req */ gss_cred_id_t *, /* output_cred_handle */ gss_OID_set *, /* actual_mechs */ OM_uint32 *, /* initiator_time_rec */ OM_uint32 *); /* acceptor_time_rec */ /* * Naming extensions */ GSS_DLLIMP extern gss_buffer_t GSS_C_ATTR_LOCAL_LOGIN_USER; GSS_DLLIMP extern gss_OID GSS_C_NT_COMPOSITE_EXPORT; OM_uint32 KRB5_CALLCONV gss_display_name_ext ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ gss_OID, /* display_as_name_type */ gss_buffer_t /* display_name */ ); OM_uint32 KRB5_CALLCONV gss_inquire_name ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ int *, /* name_is_MN */ gss_OID *, /* MN_mech */ gss_buffer_set_t * /* attrs */ ); OM_uint32 KRB5_CALLCONV gss_get_name_attribute ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ gss_buffer_t, /* attr */ int *, /* authenticated */ int *, /* complete */ gss_buffer_t, /* value */ gss_buffer_t, /* display_value */ int * /* more */ ); OM_uint32 KRB5_CALLCONV gss_set_name_attribute ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ int, /* complete */ gss_buffer_t, /* attr */ gss_buffer_t /* value */ ); OM_uint32 KRB5_CALLCONV gss_delete_name_attribute ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ gss_buffer_t /* attr */ ); OM_uint32 KRB5_CALLCONV gss_export_name_composite ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ gss_buffer_t /* exp_composite_name */ ); typedef struct gss_any *gss_any_t; OM_uint32 KRB5_CALLCONV gss_map_name_to_any ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ int, /* authenticated */ gss_buffer_t, /* type_id */ gss_any_t * /* output */ ); OM_uint32 KRB5_CALLCONV gss_release_any_name_mapping ( OM_uint32 *, /* minor_status */ gss_name_t, /* name */ gss_buffer_t, /* type_id */ gss_any_t * /* input */ ); /* draft-josefsson-gss-capsulate */ OM_uint32 KRB5_CALLCONV gss_encapsulate_token ( gss_const_buffer_t, /* input_token */ gss_const_OID, /* token_oid */ gss_buffer_t /* output_token */ ); OM_uint32 KRB5_CALLCONV gss_decapsulate_token ( gss_const_buffer_t, /* input_token */ gss_const_OID, /* token_oid */ gss_buffer_t /* output_token */ ); int KRB5_CALLCONV gss_oid_equal ( gss_const_OID, /* first_oid */ gss_const_OID /* second_oid */ ); /* Credential store extensions */ struct gss_key_value_element_struct { const char *key; const char *value; }; typedef struct gss_key_value_element_struct gss_key_value_element_desc; struct gss_key_value_set_struct { OM_uint32 count; gss_key_value_element_desc *elements; }; typedef struct gss_key_value_set_struct gss_key_value_set_desc; typedef const gss_key_value_set_desc *gss_const_key_value_set_t; #define GSS_C_NO_CRED_STORE ((gss_const_key_value_set_t) 0) OM_uint32 KRB5_CALLCONV gss_acquire_cred_from( OM_uint32 *, /* minor_status */ gss_name_t, /* desired_name */ OM_uint32, /* time_req */ gss_OID_set, /* desired_mechs */ gss_cred_usage_t, /* cred_usage */ gss_const_key_value_set_t, /* cred_store */ gss_cred_id_t *, /* output_cred_handle */ gss_OID_set *, /* actual_mechs */ OM_uint32 *); /* time_rec */ OM_uint32 KRB5_CALLCONV gss_add_cred_from( OM_uint32 *, /* minor_status */ gss_cred_id_t, /* input_cred_handle */ gss_name_t, /* desired_name */ gss_OID, /* desired_mech */ gss_cred_usage_t, /* cred_usage */ OM_uint32, /* initiator_time_req */ OM_uint32, /* acceptor_time_req */ gss_const_key_value_set_t, /* cred_store */ gss_cred_id_t *, /* output_cred_handle */ gss_OID_set *, /* actual_mechs */ OM_uint32 *, /* initiator_time_rec */ OM_uint32 *); /* acceptor_time_rec */ OM_uint32 KRB5_CALLCONV gss_store_cred_into( OM_uint32 *, /* minor_status */ gss_cred_id_t, /* input_cred_handle */ gss_cred_usage_t, /* input_usage */ gss_OID, /* desired_mech */ OM_uint32, /* overwrite_cred */ OM_uint32, /* default_cred */ gss_const_key_value_set_t, /* cred_store */ gss_OID_set *, /* elements_stored */ gss_cred_usage_t *); /* cred_usage_stored */ /* * A mech can make itself negotiable via NegoEx (draft-zhu-negoex) by * implementing the following three SPIs, and also implementing * gss_inquire_sec_context_by_oid() and answering the GSS_C_INQ_NEGOEX_KEY and * GSS_C_INQ_NEGOEX_VERIFY_KEY OIDs. The answer must be in two buffers: the * first contains the key contents, and the second contains the key enctype as * a four-byte little-endian integer. * * By default, NegoEx mechanisms will not be directly negotiated via SPNEGO. * If direct SPNEGO negotiation is required for interoperability, implement * gss_inquire_attrs_for_mech() and assert the GSS_C_MA_NEGOEX_AND_SPNEGO * attribute (along with any applicable RFC 5587 attributes). */ #define GSS_C_CHANNEL_BOUND_FLAG 2048 /* 0x00000800 */ OM_uint32 KRB5_CALLCONV gssspi_query_meta_data( OM_uint32 *minor_status, gss_const_OID mech_oid, gss_cred_id_t cred_handle, gss_ctx_id_t *context_handle, const gss_name_t targ_name, OM_uint32 req_flags, gss_buffer_t meta_data); OM_uint32 KRB5_CALLCONV gssspi_exchange_meta_data( OM_uint32 *minor_status, gss_const_OID mech_oid, gss_cred_id_t cred_handle, gss_ctx_id_t *context_handle, const gss_name_t targ_name, OM_uint32 req_flags, gss_const_buffer_t meta_data); OM_uint32 KRB5_CALLCONV gssspi_query_mechanism_info( OM_uint32 *minor_status, gss_const_OID mech_oid, unsigned char auth_scheme[16]); GSS_DLLIMP extern gss_const_OID GSS_C_MA_NEGOEX_AND_SPNEGO; #ifdef __cplusplus } #endif /* * When used with gss_inquire_sec_context_by_oid(), return a buffer set with * the first member containing an unsigned 32-bit integer in network byte * order. This is the Security Strength Factor (SSF) associated with the * secure channel established by the security context. NOTE: This value is * made available solely as an indication for use by APIs like Cyrus SASL that * classify the strength of a secure channel via this number. The strength of * a channel cannot necessarily be represented by a simple number. */ GSS_DLLIMP extern gss_OID GSS_C_SEC_CONTEXT_SASL_SSF; #endif /* GSSAPI_EXT_H_ */
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