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pgssapi.h
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pgssapi.h
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#ifndef PUTTY_PGSSAPI_H
#define PUTTY_PGSSAPI_H
#include "putty.h"
#ifndef NO_GSSAPI
/*
* On Unix, if we're statically linking against GSSAPI, we leave the
* declaration of all this lot to the official header. If we're
* dynamically linking, we declare it ourselves, because that avoids
* us needing the official header at compile time.
*
* However, we still need the function pointer types, because even
* with statically linked GSSAPI we use the ssh_gss_library wrapper.
*/
#ifdef STATIC_GSSAPI
#include <gssapi/gssapi.h>
typedef gss_OID const_gss_OID; /* for our prototypes below */
#else /* STATIC_GSSAPI */
/*******************************************************************************
* GSSAPI Definitions, taken from RFC 2744
******************************************************************************/
/* GSSAPI Type Definitions */
typedef uint32 OM_uint32;
typedef struct gss_OID_desc_struct {
OM_uint32 length;
void *elements;
} gss_OID_desc;
typedef const gss_OID_desc *const_gss_OID;
typedef gss_OID_desc *gss_OID;
typedef struct gss_OID_set_desc_struct {
size_t count;
gss_OID elements;
} gss_OID_set_desc;
typedef const gss_OID_set_desc *const_gss_OID_set;
typedef gss_OID_set_desc *gss_OID_set;
typedef struct gss_buffer_desc_struct {
size_t length;
void *value;
} gss_buffer_desc, *gss_buffer_t;
typedef struct gss_channel_bindings_struct {
OM_uint32 initiator_addrtype;
gss_buffer_desc initiator_address;
OM_uint32 acceptor_addrtype;
gss_buffer_desc acceptor_address;
gss_buffer_desc application_data;
} *gss_channel_bindings_t;
typedef void * gss_ctx_id_t;
typedef void * gss_name_t;
typedef void * gss_cred_id_t;
typedef OM_uint32 gss_qop_t;
typedef int gss_cred_usage_t;
/* Flag bits for context-level services. */
#define GSS_C_DELEG_FLAG 1
#define GSS_C_MUTUAL_FLAG 2
#define GSS_C_REPLAY_FLAG 4
#define GSS_C_SEQUENCE_FLAG 8
#define GSS_C_CONF_FLAG 16
#define GSS_C_INTEG_FLAG 32
#define GSS_C_ANON_FLAG 64
#define GSS_C_PROT_READY_FLAG 128
#define GSS_C_TRANS_FLAG 256
/* Credential usage options */
#define GSS_C_BOTH 0
#define GSS_C_INITIATE 1
#define GSS_C_ACCEPT 2
/*-
* RFC 2744 Page 86
* Expiration time of 2^32-1 seconds means infinite lifetime for a
* credential or security context
*/
#define GSS_C_INDEFINITE 0xfffffffful
/* Status code types for gss_display_status */
#define GSS_C_GSS_CODE 1
#define GSS_C_MECH_CODE 2
/* The constant definitions for channel-bindings address families */
#define GSS_C_AF_UNSPEC 0
#define GSS_C_AF_LOCAL 1
#define GSS_C_AF_INET 2
#define GSS_C_AF_IMPLINK 3
#define GSS_C_AF_PUP 4
#define GSS_C_AF_CHAOS 5
#define GSS_C_AF_NS 6
#define GSS_C_AF_NBS 7
#define GSS_C_AF_ECMA 8
#define GSS_C_AF_DATAKIT 9
#define GSS_C_AF_CCITT 10
#define GSS_C_AF_SNA 11
#define GSS_C_AF_DECnet 12
#define GSS_C_AF_DLI 13
#define GSS_C_AF_LAT 14
#define GSS_C_AF_HYLINK 15
#define GSS_C_AF_APPLETALK 16
#define GSS_C_AF_BSC 17
#define GSS_C_AF_DSS 18
#define GSS_C_AF_OSI 19
#define GSS_C_AF_X25 21
#define GSS_C_AF_NULLADDR 255
/* Various Null values */
#define GSS_C_NO_NAME ((gss_name_t) 0)
#define GSS_C_NO_BUFFER ((gss_buffer_t) 0)
#define GSS_C_NO_OID ((gss_OID) 0)
#define GSS_C_NO_OID_SET ((gss_OID_set) 0)
#define GSS_C_NO_CONTEXT ((gss_ctx_id_t) 0)
#define GSS_C_NO_CREDENTIAL ((gss_cred_id_t) 0)
#define GSS_C_NO_CHANNEL_BINDINGS ((gss_channel_bindings_t) 0)
#define GSS_C_EMPTY_BUFFER {0, NULL}
/* Major status codes */
#define GSS_S_COMPLETE 0
/* Some "helper" definitions to make the status code macros obvious. */
#define GSS_C_CALLING_ERROR_OFFSET 24
#define GSS_C_ROUTINE_ERROR_OFFSET 16
#define GSS_C_SUPPLEMENTARY_OFFSET 0
#define GSS_C_CALLING_ERROR_MASK 0377ul
#define GSS_C_ROUTINE_ERROR_MASK 0377ul
#define GSS_C_SUPPLEMENTARY_MASK 0177777ul
/*
* The macros that test status codes for error conditions.
* Note that the GSS_ERROR() macro has changed slightly from
* the V1 GSS-API so that it now evaluates its argument
* only once.
*/
#define GSS_CALLING_ERROR(x) \
(x & (GSS_C_CALLING_ERROR_MASK << GSS_C_CALLING_ERROR_OFFSET))
#define GSS_ROUTINE_ERROR(x) \
(x & (GSS_C_ROUTINE_ERROR_MASK << GSS_C_ROUTINE_ERROR_OFFSET))
#define GSS_SUPPLEMENTARY_INFO(x) \
(x & (GSS_C_SUPPLEMENTARY_MASK << GSS_C_SUPPLEMENTARY_OFFSET))
#define GSS_ERROR(x) \
(x & ((GSS_C_CALLING_ERROR_MASK << GSS_C_CALLING_ERROR_OFFSET) | \
(GSS_C_ROUTINE_ERROR_MASK << GSS_C_ROUTINE_ERROR_OFFSET)))
/* Now the actual status code definitions */
/* Calling errors: */
#define GSS_S_CALL_INACCESSIBLE_READ \
(1ul << GSS_C_CALLING_ERROR_OFFSET)
#define GSS_S_CALL_INACCESSIBLE_WRITE \
(2ul << GSS_C_CALLING_ERROR_OFFSET)
#define GSS_S_CALL_BAD_STRUCTURE \
(3ul << GSS_C_CALLING_ERROR_OFFSET)
/* Routine errors: */
#define GSS_S_BAD_MECH (1ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_BAD_NAME (2ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_BAD_NAMETYPE (3ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_BAD_BINDINGS (4ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_BAD_STATUS (5ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_BAD_SIG (6ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_BAD_MIC GSS_S_BAD_SIG
#define GSS_S_NO_CRED (7ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_NO_CONTEXT (8ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_DEFECTIVE_TOKEN (9ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_DEFECTIVE_CREDENTIAL (10ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_CREDENTIALS_EXPIRED (11ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_CONTEXT_EXPIRED (12ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_FAILURE (13ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_BAD_QOP (14ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_UNAUTHORIZED (15ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_UNAVAILABLE (16ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_DUPLICATE_ELEMENT (17ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
#define GSS_S_NAME_NOT_MN (18ul << \
GSS_C_ROUTINE_ERROR_OFFSET)
/* Supplementary info bits: */
#define GSS_S_CONTINUE_NEEDED \
(1ul << (GSS_C_SUPPLEMENTARY_OFFSET + 0))
#define GSS_S_DUPLICATE_TOKEN \
(1ul << (GSS_C_SUPPLEMENTARY_OFFSET + 1))
#define GSS_S_OLD_TOKEN \
(1ul << (GSS_C_SUPPLEMENTARY_OFFSET + 2))
#define GSS_S_UNSEQ_TOKEN \
(1ul << (GSS_C_SUPPLEMENTARY_OFFSET + 3))
#define GSS_S_GAP_TOKEN \
(1ul << (GSS_C_SUPPLEMENTARY_OFFSET + 4))
extern const_gss_OID GSS_C_NT_USER_NAME;
extern const_gss_OID GSS_C_NT_MACHINE_UID_NAME;
extern const_gss_OID GSS_C_NT_STRING_UID_NAME;
extern const_gss_OID GSS_C_NT_HOSTBASED_SERVICE_X;
extern const_gss_OID GSS_C_NT_HOSTBASED_SERVICE;
extern const_gss_OID GSS_C_NT_ANONYMOUS;
extern const_gss_OID GSS_C_NT_EXPORT_NAME;
#endif /* STATIC_GSSAPI */
extern const gss_OID GSS_MECH_KRB5;
/* GSSAPI functions we use.
* TODO: Replace with all GSSAPI functions from RFC?
*/
/* Calling convention, just in case we need one. */
#ifndef GSS_CC
#define GSS_CC
#endif /*GSS_CC*/
typedef OM_uint32 (GSS_CC *t_gss_release_cred)
(OM_uint32 * /*minor_status*/,
gss_cred_id_t * /*cred_handle*/);
typedef OM_uint32 (GSS_CC *t_gss_init_sec_context)
(OM_uint32 * /*minor_status*/,
const gss_cred_id_t /*initiator_cred_handle*/,
gss_ctx_id_t * /*context_handle*/,
const gss_name_t /*target_name*/,
const gss_OID /*mech_type*/,
OM_uint32 /*req_flags*/,
OM_uint32 /*time_req*/,
const gss_channel_bindings_t /*input_chan_bindings*/,
const gss_buffer_t /*input_token*/,
gss_OID * /*actual_mech_type*/,
gss_buffer_t /*output_token*/,
OM_uint32 * /*ret_flags*/,
OM_uint32 * /*time_rec*/);
typedef OM_uint32 (GSS_CC *t_gss_delete_sec_context)
(OM_uint32 * /*minor_status*/,
gss_ctx_id_t * /*context_handle*/,
gss_buffer_t /*output_token*/);
typedef OM_uint32 (GSS_CC *t_gss_get_mic)
(OM_uint32 * /*minor_status*/,
const gss_ctx_id_t /*context_handle*/,
gss_qop_t /*qop_req*/,
const gss_buffer_t /*message_buffer*/,
gss_buffer_t /*msg_token*/);
typedef OM_uint32 (GSS_CC *t_gss_verify_mic)
(OM_uint32 * /*minor_status*/,
const gss_ctx_id_t /*context_handle*/,
const gss_buffer_t /*message_buffer*/,
const gss_buffer_t /*msg_token*/,
gss_qop_t * /*qop_state*/);
typedef OM_uint32 (GSS_CC *t_gss_display_status)
(OM_uint32 * /*minor_status*/,
OM_uint32 /*status_value*/,
int /*status_type*/,
const gss_OID /*mech_type*/,
OM_uint32 * /*message_context*/,
gss_buffer_t /*status_string*/);
typedef OM_uint32 (GSS_CC *t_gss_import_name)
(OM_uint32 * /*minor_status*/,
const gss_buffer_t /*input_name_buffer*/,
const_gss_OID /*input_name_type*/,
gss_name_t * /*output_name*/);
typedef OM_uint32 (GSS_CC *t_gss_release_name)
(OM_uint32 * /*minor_status*/,
gss_name_t * /*name*/);
typedef OM_uint32 (GSS_CC *t_gss_release_buffer)
(OM_uint32 * /*minor_status*/,
gss_buffer_t /*buffer*/);
typedef OM_uint32 (GSS_CC *t_gss_acquire_cred)
(OM_uint32 * /*minor_status*/,
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*/);
typedef OM_uint32 (GSS_CC *t_gss_inquire_cred_by_mech)
(OM_uint32 * /*minor_status*/,
const gss_cred_id_t /*cred_handle*/,
const gss_OID /*mech_type*/,
gss_name_t * /*name*/,
OM_uint32 * /*initiator_lifetime*/,
OM_uint32 * /*acceptor_lifetime*/,
gss_cred_usage_t * /*cred_usage*/);
struct gssapi_functions {
t_gss_delete_sec_context delete_sec_context;
t_gss_display_status display_status;
t_gss_get_mic get_mic;
t_gss_verify_mic verify_mic;
t_gss_import_name import_name;
t_gss_init_sec_context init_sec_context;
t_gss_release_buffer release_buffer;
t_gss_release_cred release_cred;
t_gss_release_name release_name;
t_gss_acquire_cred acquire_cred;
t_gss_inquire_cred_by_mech inquire_cred_by_mech;
};
#endif /* NO_GSSAPI */
#endif /* PUTTY_PGSSAPI_H */