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#ifndef _SMBAUTH_H_
#define _SMBAUTH_H_
   Unix SMB/CIFS implementation.
   Standardised Authentication types
   Copyright (C) Andrew Bartlett 2001
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   GNU General Public License for more details.
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.

typedef struct auth_usersupplied_info {
      DATA_BLOB lm_resp;
      DATA_BLOB nt_resp;
      DATA_BLOB lm_interactive_pwd;
      DATA_BLOB nt_interactive_pwd;
      DATA_BLOB plaintext_password;
      bool encrypted;
      bool was_mapped;        /* Did the username map actually match? */
      char *client_domain;          /* domain name string */
      char *domain;                 /* domain name after mapping */
      char *internal_username;      /* username after mapping */
      char *smb_name;               /* username before mapping */
      char *wksta_name;             /* workstation name (netbios calling
                               * name) unicode string */
      uint32 logon_parameters;

} auth_usersupplied_info;

typedef struct auth_serversupplied_info {
      bool guest;

      DOM_SID *sids;    /* These SIDs are preliminary between
                     check_ntlm_password and the token creation. */
      size_t num_sids;

      uid_t uid;
      gid_t gid;
      /* This groups info is needed for when we become_user() for this uid */
      size_t n_groups;
      gid_t *groups;
      /* NT group information taken from the info3 structure */
      NT_USER_TOKEN *ptok;
      DATA_BLOB user_session_key;
      DATA_BLOB lm_session_key;

        char *login_server; /* which server authorized the login? */
      struct samu *sam_account;
      void *pam_handle;

      bool was_mapped;  /* Did the username map match? */
      char *unix_name;
} auth_serversupplied_info;

struct auth_context {
      DATA_BLOB challenge; 

      /* Who set this up in the first place? */ 
      const char *challenge_set_by; 

      bool challenge_may_be_modified;

      struct auth_methods *challenge_set_method; 
      /* What order are the various methods in?   Try to stop it changing under us */ 
      struct auth_methods *auth_method_list;    

      TALLOC_CTX *mem_ctx;
      const uint8 *(*get_ntlm_challenge)(struct auth_context *auth_context);
      NTSTATUS (*check_ntlm_password)(const struct auth_context *auth_context,
                              const struct auth_usersupplied_info *user_info, 
                              struct auth_serversupplied_info **server_info);
      NTSTATUS (*nt_status_squash)(NTSTATUS nt_status);
      void (*free)(struct auth_context **auth_context);

typedef struct auth_methods
      struct auth_methods *prev, *next;
      const char *name; /* What name got this module */

      NTSTATUS (*auth)(const struct auth_context *auth_context,
                   void *my_private_data, 
                   TALLOC_CTX *mem_ctx,
                   const struct auth_usersupplied_info *user_info, 
                   auth_serversupplied_info **server_info);

      /* If you are using this interface, then you are probably
       * getting something wrong.  This interface is only for
       * security=server, and makes a number of compromises to allow
       * that.  It is not compatible with being a PDC.  */
      DATA_BLOB (*get_chal)(const struct auth_context *auth_context,
                        void **my_private_data, 
                        TALLOC_CTX *mem_ctx);
      /* Used to keep tabs on things like the cli for SMB server authentication */
      void *private_data;

} auth_methods;

typedef NTSTATUS (*auth_init_function)(struct auth_context *, const char *, struct auth_methods **);

struct auth_init_function_entry {
      const char *name;
      /* Function to create a member of the authmethods list */

      auth_init_function init;

      struct auth_init_function_entry *prev, *next;

typedef struct auth_ntlmssp_state {
      TALLOC_CTX *mem_ctx;
      struct auth_context *auth_context;
      struct auth_serversupplied_info *server_info;
      struct ntlmssp_state *ntlmssp_state;

/* Changed from 1 -> 2 to add the logon_parameters field. */

#endif /* _SMBAUTH_H_ */

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