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    Copyright (C) Anthony Liguori 2003
   8
   9    This library is free software; you can redistribute it and/or
  10    modify it under the terms of the GNU Library General Public
  11    License as published by the Free Software Foundation; either
  12    version 2 of the License, or (at your option) any later version.
  13
  14    This library is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17    Library General Public License for more details.
  18
  19    You should have received a copy of the GNU Library General Public
  20    License along with this library; if not, write to the
  21    Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA  02111-1307, USA.
  23 */
  24
  25 #ifndef _WINBINDD_H
  26 #define _WINBINDD_H
  27
  28 #include "includes.h"
  29 #include "nterr.h"
  30
  31 #include "winbindd_nss.h"
  32
  33 #undef DBGC_CLASS
  34 #define DBGC_CLASS DBGC_WINBIND
  35
  36 /* Client state structure */
  37
  38 struct winbindd_cli_state {
  39         struct winbindd_cli_state *prev, *next;   /* Linked list pointers */
  40         int sock;                                 /* Open socket from client */
  41         pid_t pid;                                /* pid of client */
  42         int read_buf_len, write_buf_len;          /* Indexes in request/response */
  43         BOOL finished;                            /* Can delete from list */
  44         BOOL write_extra_data;                    /* Write extra_data field */
  45         time_t last_access;                       /* Time of last access (read or write) */
  46         BOOL privileged;                           /* Is the client 'privileged' */
  47
  48         struct winbindd_request request;          /* Request from client */
  49         struct winbindd_response response;        /* Respose to client */
  50         struct getent_state *getpwent_state;      /* State for getpwent() */
  51         struct getent_state *getgrent_state;      /* State for getgrent() */
  52 };
  53
  54 /* State between get{pw,gr}ent() calls */
  55
  56 struct getent_state {
  57         struct getent_state *prev, *next;
  58         void *sam_entries;
  59         uint32 sam_entry_index, num_sam_entries;
  60         BOOL got_sam_entries;
  61         fstring domain_name;
  62 };
  63
  64 /* Storage for cached getpwent() user entries */
  65
  66 struct getpwent_user {
  67         fstring name;                        /* Account name */
  68         fstring gecos;                       /* User information */
  69         DOM_SID user_sid;                    /* NT user and primary group SIDs */
  70         DOM_SID group_sid;
  71 };
  72
  73 /* Server state structure */
  74
  75 struct winbindd_state {
  76
  77         /* User and group id pool */
  78
  79         uid_t uid_low, uid_high;               /* Range of uids to allocate */
  80         gid_t gid_low, gid_high;               /* Range of gids to allocate */
  81 };
  82
  83 extern struct winbindd_state server_state;  /* Server information */
  84
  85 typedef struct {
  86         char *acct_name;
  87         char *full_name;
  88         DOM_SID *user_sid;                    /* NT user and primary group SIDs */
  89         DOM_SID *group_sid;
  90 } WINBIND_USERINFO;
  91
  92 /* Structures to hold per domain information */
  93
  94 struct winbindd_domain {
  95         fstring name;                          /* Domain name */
  96         fstring alt_name;                      /* alt Domain name (if any) */
  97         DOM_SID sid;                           /* SID for this domain */
  98         BOOL native_mode;                      /* is this a win2k domain in native mode ? */
  99
 100         /* Lookup methods for this domain (LDAP or RPC) */
 101         struct winbindd_methods *methods;
 102
 103         /* the backend methods are used by the cache layer to find the right
 104            backend */
 105         struct winbindd_methods *backend;
 106
 107         /* Private data for the backends (used for connection cache) */
 108
 109         void *private;
 110
 111         /* Sequence number stuff */
 112
 113         time_t last_seq_check;
 114         uint32 sequence_number;
 115
 116         /* Linked list info */
 117
 118         struct winbindd_domain *prev, *next;
 119 };
 120
 121 /* per-domain methods. This is how LDAP vs RPC is selected
 122  */
 123 struct winbindd_methods {
 124         /* does this backend provide a consistent view of the data? (ie. is the primary group
 125            always correct) */
 126         BOOL consistent;
 127
 128         /* get a list of users, returning a WINBIND_USERINFO for each one */
 129         NTSTATUS (*query_user_list)(struct winbindd_domain *domain,
 130                                    TALLOC_CTX *mem_ctx,
 131                                    uint32 *num_entries,
 132                                    WINBIND_USERINFO **info);
 133
 134         /* get a list of domain groups */
 135         NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain,
 136                                     TALLOC_CTX *mem_ctx,
 137                                     uint32 *num_entries,
 138                                     struct acct_info **info);
 139
 140         /* get a list of domain local groups */
 141         NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain,
 142                                     TALLOC_CTX *mem_ctx,
 143                                     uint32 *num_entries,
 144                                     struct acct_info **info);
 145
 146         /* convert one user or group name to a sid */
 147         NTSTATUS (*name_to_sid)(struct winbindd_domain *domain,
 148                                 TALLOC_CTX *mem_ctx,
 149                                 const char *name,
 150                                 DOM_SID *sid,
 151                                 enum SID_NAME_USE *type);
 152
 153         /* convert a sid to a user or group name */
 154         NTSTATUS (*sid_to_name)(struct winbindd_domain *domain,
 155                                 TALLOC_CTX *mem_ctx,
 156                                 DOM_SID *sid,
 157                                 char **name,
 158                                 enum SID_NAME_USE *type);
 159
 160         /* lookup user info for a given SID */
 161         NTSTATUS (*query_user)(struct winbindd_domain *domain,
 162                                TALLOC_CTX *mem_ctx,
 163                                DOM_SID *user_sid,
 164                                WINBIND_USERINFO *user_info);
 165
 166         /* lookup all groups that a user is a member of. The backend
 167            can also choose to lookup by username or rid for this
 168            function */
 169         NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain,
 170                                       TALLOC_CTX *mem_ctx,
 171                                       DOM_SID *user_sid,
 172                                       uint32 *num_groups, DOM_SID ***user_gids);
 173
 174         /* find all members of the group with the specified group_rid */
 175         NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain,
 176                                     TALLOC_CTX *mem_ctx,
 177                                     DOM_SID *group_sid,
 178                                     uint32 *num_names,
 179                                     DOM_SID ***sid_mem, char ***names,
 180                                     uint32 **name_types);
 181
 182         /* return the current global sequence number */
 183         NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq);
 184
 185         /* enumerate trusted domains */
 186         NTSTATUS (*trusted_domains)(struct winbindd_domain *domain,
 187                                     TALLOC_CTX *mem_ctx,
 188                                     uint32 *num_domains,
 189                                     char ***names,
 190                                     char ***alt_names,
 191                                     DOM_SID **dom_sids);
 192
 193         /* find the domain sid */
 194         NTSTATUS (*domain_sid)(struct winbindd_domain *domain,
 195                                DOM_SID *sid);
 196
 197         /* setup the list of alternate names for the domain, if any */
 198         NTSTATUS (*alternate_name)(struct winbindd_domain *domain);
 199 };
 200
 201 /* Used to glue a policy handle and cli_state together */
 202
 203 typedef struct {
 204         struct cli_state *cli;
 205         POLICY_HND pol;
 206 } CLI_POLICY_HND;
 207
 208 /* Filled out by IDMAP backends */
 209 struct winbindd_idmap_methods {
 210   /* Called when backend is first loaded */
 211   BOOL (*init)(void);
 212
 213   BOOL (*get_sid_from_uid)(uid_t uid, DOM_SID *sid);
 214   BOOL (*get_sid_from_gid)(gid_t gid, DOM_SID *sid);
 215
 216   BOOL (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid);
 217   BOOL (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid);
 218
 219   /* Called when backend is unloaded */
 220   BOOL (*close)(void);
 221   /* Called to dump backend status */
 222   void (*status)(void);
 223 };
 224
 225 #include "../nsswitch/winbindd_proto.h"
 226
 227 #include "rpc_parse.h"
 228 #include "rpc_client.h"
 229
 230 #define WINBINDD_ESTABLISH_LOOP 30
 231 #define WINBINDD_RESCAN_FREQ 300
 232
 233 #define DOM_SEQUENCE_NONE ((uint32)-1)
 234
 235 #endif /* _WINBINDD_H */