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/*
    SSSD - MIT Kerberos authdata plugin

    This file contains definitions and declarations to build authdata plugins
    for MIT Kerberos outside of the MIT Kerberos source tree.
*/

#ifndef _KRB5_AUTHDATA_INT_H
#define _KRB5_AUTHDATA_INT_H

krb5_error_code KRB5_CALLCONV
krb5_ser_pack_int32(krb5_int32, krb5_octet **, size_t *);

krb5_error_code KRB5_CALLCONV
krb5_ser_unpack_int32(krb5_int32 *, krb5_octet **, size_t *);

krb5_error_code KRB5_CALLCONV
krb5_ser_pack_bytes(krb5_octet *, size_t, krb5_octet **, size_t *);

#define AD_USAGE_AS_REQ         0x01
#define AD_USAGE_TGS_REQ        0x02
#define AD_USAGE_AP_REQ         0x04
#define AD_USAGE_KDC_ISSUED     0x08
#define AD_USAGE_MASK           0x0F
#define AD_INFORMATIONAL        0x10

struct _krb5_authdata_context;
typedef struct _krb5_authdata_context *krb5_authdata_context;

typedef void
(*authdata_client_plugin_flags_proc)(krb5_context kcontext,
                                     void *plugin_context,
                                     krb5_authdatatype ad_type,
                                     krb5_flags *flags);

typedef krb5_error_code
(*authdata_client_plugin_init_proc)(krb5_context context,
                                    void **plugin_context);
typedef void
(*authdata_client_plugin_fini_proc)(krb5_context kcontext,
                                    void *plugin_context);

typedef krb5_error_code
(*authdata_client_request_init_proc)(krb5_context kcontext,
                                     struct _krb5_authdata_context *context,
                                     void *plugin_context,
                                     void **request_context);

typedef void
(*authdata_client_request_fini_proc)(krb5_context kcontext,
                                     struct _krb5_authdata_context *context,
                                     void *plugin_context,
                                     void *request_context);

typedef krb5_error_code
(*authdata_client_import_authdata_proc)(krb5_context kcontext,
                                        struct _krb5_authdata_context *context,
                                        void *plugin_context,
                                        void *request_context,
                                        krb5_authdata **authdata,
                                        krb5_boolean kdc_issued_flag,
                                        krb5_const_principal issuer);

typedef krb5_error_code
(*authdata_client_export_authdata_proc)(krb5_context kcontext,
                                        struct _krb5_authdata_context *context,
                                        void *plugin_context,
                                        void *request_context,
                                        krb5_flags usage,
                                        krb5_authdata ***authdata);

typedef krb5_error_code
(*authdata_client_get_attribute_types_proc)(krb5_context kcontext,
                                            struct _krb5_authdata_context *context,
                                            void *plugin_context,
                                            void *request_context,
                                            krb5_data **attrs);

typedef krb5_error_code
(*authdata_client_get_attribute_proc)(krb5_context kcontext,
                                      struct _krb5_authdata_context *context,
                                      void *plugin_context,
                                      void *request_context,
                                      const krb5_data *attribute,
                                      krb5_boolean *authenticated,
                                      krb5_boolean *complete,
                                      krb5_data *value,
                                      krb5_data *display_value,
                                      int *more);

typedef krb5_error_code
(*authdata_client_set_attribute_proc)(krb5_context kcontext,
                                      struct _krb5_authdata_context *context,
                                      void *plugin_context,
                                      void *request_context,
                                      krb5_boolean complete,
                                      const krb5_data *attribute,
                                      const krb5_data *value);

typedef krb5_error_code
(*authdata_client_delete_attribute_proc)(krb5_context kcontext,
                                         struct _krb5_authdata_context *context,
                                         void *plugin_context,
                                         void *request_context,
                                         const krb5_data *attribute);

typedef krb5_error_code
(*authdata_client_export_internal_proc)(krb5_context kcontext,
                                        struct _krb5_authdata_context *context,
                                        void *plugin_context,
                                        void *request_context,
                                        krb5_boolean restrict_authenticated,
                                        void **ptr);

typedef void
(*authdata_client_free_internal_proc)(krb5_context kcontext,
                                      struct _krb5_authdata_context *context,
                                      void *plugin_context,
                                      void *request_context,
                                      void *ptr);

typedef krb5_error_code
(*authdata_client_verify_proc)(krb5_context kcontext,
                               struct _krb5_authdata_context *context,
                               void *plugin_context,
                               void *request_context,
                               const krb5_auth_context *auth_context,
                               const krb5_keyblock *key,
                               const krb5_ap_req *req);

typedef krb5_error_code
(*authdata_client_size_proc)(krb5_context kcontext,
                             struct _krb5_authdata_context *context,
                             void *plugin_context,
                             void *request_context,
                             size_t *sizep);

typedef krb5_error_code
(*authdata_client_externalize_proc)(krb5_context kcontext,
                                    struct _krb5_authdata_context *context,
                                    void *plugin_context,
                                    void *request_context,
                                    krb5_octet **buffer,
                                    size_t *lenremain);

typedef krb5_error_code
(*authdata_client_internalize_proc)(krb5_context kcontext,
                                    struct _krb5_authdata_context *context,
                                    void *plugin_context,
                                    void *request_context,
                                    krb5_octet **buffer,
                                    size_t *lenremain);

typedef krb5_error_code
(*authdata_client_copy_proc)(krb5_context kcontext,
                             struct _krb5_authdata_context *context,
                             void *plugin_context,
                             void *request_context,
                             void *dst_plugin_context,
                             void *dst_request_context);

typedef struct krb5plugin_authdata_client_ftable_v0 {
    char *name;
    krb5_authdatatype *ad_type_list;
    authdata_client_plugin_init_proc init;
    authdata_client_plugin_fini_proc fini;
    authdata_client_plugin_flags_proc flags;
    authdata_client_request_init_proc request_init;
    authdata_client_request_fini_proc request_fini;
    authdata_client_get_attribute_types_proc get_attribute_types;
    authdata_client_get_attribute_proc get_attribute;
    authdata_client_set_attribute_proc set_attribute;
    authdata_client_delete_attribute_proc delete_attribute;
    authdata_client_export_authdata_proc export_authdata;
    authdata_client_import_authdata_proc import_authdata;
    authdata_client_export_internal_proc export_internal;
    authdata_client_free_internal_proc free_internal;
    authdata_client_verify_proc verify;
    authdata_client_size_proc size;
    authdata_client_externalize_proc externalize;
    authdata_client_internalize_proc internalize;
    authdata_client_copy_proc copy; /* optional */
} krb5plugin_authdata_client_ftable_v0;

#endif /* _KRB5_AUTHDATA_INT_H */