source/nsswitch/winbindd.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon for ntdom nss module
   5
   6    Copyright (C) Tim Potter 2000
   7
   8    This library is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU Library General Public
  10    License as published by the Free Software Foundation; either
  11    version 2 of the License, or (at your option) any later version.
  12
  13    This library is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    Library General Public License for more details.
  17
  18    You should have received a copy of the GNU Library General Public
  19    License along with this library; if not, write to the
  20    Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA  02111-1307, USA.
  22 */
  23
  24 #ifndef _WINBINDD_H
  25 #define _WINBINDD_H
  26
  27 #include "includes.h"
  28 #include "nterr.h"
  29
  30 #include "winbindd_nss.h"
  31
  32 /* Client state structure */
  33
  34 struct winbindd_cli_state {
  35     struct winbindd_cli_state *prev, *next;   /* Linked list pointers */
  36     int sock;                                 /* Open socket from client */
  37     pid_t pid;                                /* pid of client */
  38     int read_buf_len, write_buf_len;          /* Indexes in request/response */
  39     BOOL finished;                            /* Can delete from list */
  40     BOOL write_extra_data;                    /* Write extra_data field */
  41     struct winbindd_request request;          /* Request from client */
  42     struct winbindd_response response;        /* Respose to client */
  43     struct getent_state *getpwent_state;      /* State for getpwent() */
  44     struct getent_state *getgrent_state;      /* State for getgrent() */
  45 };
  46
  47 /* State between get{pw,gr}ent() calls */
  48
  49 struct getent_state {
  50         struct getent_state *prev, *next;
  51         void *sam_entries;
  52         uint32 sam_entry_index, num_sam_entries;
  53         BOOL got_sam_entries;
  54         fstring domain_name;
  55 };
  56
  57 /* Storage for cached getpwent() user entries */
  58
  59 struct getpwent_user {
  60         fstring name;                        /* Account name */
  61         fstring gecos;                       /* User information */
  62         uint32 user_rid, group_rid;          /* NT user and group rids */
  63 };
  64
  65 /* Server state structure */
  66
  67 struct winbindd_state {
  68
  69         /* User and group id pool */
  70
  71         uid_t uid_low, uid_high;               /* Range of uids to allocate */
  72         gid_t gid_low, gid_high;               /* Range of gids to allocate */
  73 };
  74
  75 extern struct winbindd_state server_state;  /* Server information */
  76
  77 typedef struct {
  78         char *acct_name;
  79         char *full_name;
  80         uint32 user_rid;
  81         uint32 group_rid; /* primary group */
  82 } WINBIND_USERINFO;
  83
  84 /* Structures to hold per domain information */
  85
  86 struct winbindd_domain {
  87         fstring name;                          /* Domain name */
  88         fstring full_name;                     /* full Domain name (realm) */
  89         DOM_SID sid;                           /* SID for this domain */
  90
  91         /* Lookup methods for this domain (LDAP or RPC) */
  92
  93         struct winbindd_methods *methods;
  94
  95         /* Private data for the backends (used for connection cache) */
  96
  97         void *private;
  98
  99         /* Sequence number stuff */
 100
 101         time_t last_seq_check;
 102         uint32 sequence_number;
 103
 104         /* Linked list info */
 105
 106         struct winbindd_domain *prev, *next;
 107 };
 108
 109 /* per-domain methods. This is how LDAP vs RPC is selected
 110  */
 111 struct winbindd_methods {
 112         /* does this backend provide a consistent view of the data? (ie. is the primary group
 113            always correct) */
 114         BOOL consistent;
 115
 116         /* get a list of users, returning a WINBIND_USERINFO for each one */
 117         NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
 118                                    TALLOC_CTX *mem_ctx,
 119                                    uint32 *num_entries,
 120                                    WINBIND_USERINFO **info);
 121
 122         /* get a list of groups */
 123         NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
 124                                     TALLOC_CTX *mem_ctx,
 125                                     uint32 *num_entries,
 126                                     struct acct_info **info);
 127
 128         /* convert one user or group name to a sid */
 129         NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
 130                                 const char *name,
 131                                 DOM_SID *sid,
 132                                 enum SID_NAME_USE *type);
 133
 134         /* convert a sid to a user or group name */
 135         NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
 136                                 TALLOC_CTX *mem_ctx,
 137                                 DOM_SID *sid,
 138                                 char **name,
 139                                 enum SID_NAME_USE *type);
 140
 141         /* lookup user info for a given rid */
 142         NTSTATUS (*query_user)(struct winbindd_domain *domain,
 143                                TALLOC_CTX *mem_ctx,
 144                                uint32 user_rid,
 145                                WINBIND_USERINFO *user_info);
 146
 147         /* lookup all groups that a user is a member of. The backend
 148            can also choose to lookup by username or rid for this
 149            function */
 150         NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
 151                                       TALLOC_CTX *mem_ctx,
 152                                       uint32 user_rid,
 153                                       uint32 *num_groups, uint32 **user_gids);
 154
 155         /* find all members of the group with the specified group_rid */
 156         NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
 157                                     TALLOC_CTX *mem_ctx,
 158                                     uint32 group_rid, uint32 *num_names,
 159                                     uint32 **rid_mem, char ***names,
 160                                     uint32 **name_types);
 161
 162         /* return the current global sequence number */
 163         NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
 164
 165         /* enumerate trusted domains */
 166         NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
 167                                     TALLOC_CTX *mem_ctx,
 168                                     uint32 *num_domains,
 169                                     char ***names,
 170                                     DOM_SID **dom_sids);
 171
 172         /* find the domain sid */
 173         NTSTATUS (*domain_sid)(struct winbindd_domain *domain,
 174                                DOM_SID *sid);
 175 };
 176
 177 /* Used to glue a policy handle and cli_state together */
 178
 179 typedef struct {
 180         struct cli_state *cli;
 181         POLICY_HND pol;
 182 } CLI_POLICY_HND;
 183
 184 #include "winbindd_proto.h"
 185
 186 #include "rpc_parse.h"
 187 #include "rpc_client.h"
 188
 189 #define WINBINDD_ESTABLISH_LOOP 30
 190 #define DOM_SEQUENCE_NONE ((uint32)-1)
 191
 192 /* SETENV */
 193 #if HAVE_SETENV
 194 #define SETENV(name, value, overwrite) setenv(name,value,overwrite)
 195 #elif HAVE_PUTENV
 196 #define SETENV(name, value, overwrite)                                   \
 197 {                                                                        \
 198         fstring envvar;                                                  \
 199         slprintf(envvar, sizeof(fstring), "%s=%s", name, value);         \
 200         putenv(envvar);                                                  \
 201 }
 202 #else
 203 #define SETENV(name, value, overwrite) ;
 204 #endif
 205
 206 #endif /* _WINBINDD_H */