/* Unix SMB/CIFS implementation. Winbind daemon for ntdom nss module Copyright (C) Tim Potter 2000 Copyright (C) Jim McDonough 2003 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see . */ #ifndef _WINBINDD_H #define _WINBINDD_H #include "nsswitch/winbind_struct_protocol.h" #include "nsswitch/libwbclient/wbclient.h" #ifdef HAVE_LIBNSCD #include #endif #ifdef HAVE_SYS_MMAN_H #include #endif #undef DBGC_CLASS #define DBGC_CLASS DBGC_WINBIND #define WB_REPLACE_CHAR '_' struct winbindd_fd_event { struct winbindd_fd_event *next, *prev; int fd; int flags; /* see EVENT_FD_* flags */ void (*handler)(struct winbindd_fd_event *fde, int flags); void *data; size_t length, done; void (*finished)(void *private_data, bool success); void *private_data; }; struct sid_ctr { DOM_SID *sid; bool finished; const char *domain; const char *name; enum lsa_SidType type; }; struct winbindd_cli_state { struct winbindd_cli_state *prev, *next; /* Linked list pointers */ int sock; /* Open socket from client */ struct winbindd_fd_event fd_event; pid_t pid; /* pid of client */ bool finished; /* Can delete from list */ bool write_extra_data; /* Write extra_data field */ time_t last_access; /* Time of last access (read or write) */ bool privileged; /* Is the client 'privileged' */ TALLOC_CTX *mem_ctx; /* memory per request */ struct winbindd_request request; /* Request from client */ struct winbindd_response response; /* Respose to client */ bool getpwent_initialized; /* Has getpwent_state been * initialized? */ bool getgrent_initialized; /* Has getgrent_state been * initialized? */ struct getent_state *getpwent_state; /* State for getpwent() */ struct getent_state *getgrent_state; /* State for getgrent() */ }; /* State between get{pw,gr}ent() calls */ struct getent_state { struct getent_state *prev, *next; void *sam_entries; uint32 sam_entry_index, num_sam_entries; bool got_sam_entries; fstring domain_name; }; /* Storage for cached getpwent() user entries */ struct getpwent_user { fstring name; /* Account name */ fstring gecos; /* User information */ fstring homedir; /* User Home Directory */ fstring shell; /* User Login Shell */ DOM_SID user_sid; /* NT user and primary group SIDs */ DOM_SID group_sid; }; /* Server state structure */ typedef struct { char *acct_name; char *full_name; char *homedir; char *shell; gid_t primary_gid; /* allow the nss_info backend to set the primary group */ DOM_SID user_sid; /* NT user and primary group SIDs */ DOM_SID group_sid; } WINBIND_USERINFO; /* Our connection to the DC */ struct winbindd_cm_conn { struct cli_state *cli; struct rpc_pipe_client *samr_pipe; POLICY_HND sam_connect_handle, sam_domain_handle; struct rpc_pipe_client *lsa_pipe; struct rpc_pipe_client *lsa_pipe_tcp; POLICY_HND lsa_policy; struct rpc_pipe_client *netlogon_pipe; }; struct winbindd_async_request; /* Async child */ struct winbindd_domain; struct winbindd_child_dispatch_table { const char *name; enum winbindd_cmd struct_cmd; enum winbindd_result (*struct_fn)(struct winbindd_domain *domain, struct winbindd_cli_state *state); }; struct winbindd_child { struct winbindd_child *next, *prev; pid_t pid; struct winbindd_domain *domain; char *logfilename; struct winbindd_fd_event event; struct timed_event *lockout_policy_event; struct timed_event *machine_password_change_event; struct winbindd_async_request *requests; const struct winbindd_child_dispatch_table *table; }; /* Structures to hold per domain information */ struct winbindd_domain { fstring name; /* Domain name (NetBIOS) */ fstring alt_name; /* alt Domain name, if any (FQDN for ADS) */ fstring forest_name; /* Name of the AD forest we're in */ DOM_SID sid; /* SID for this domain */ uint32 domain_flags; /* Domain flags from netlogon.h */ uint32 domain_type; /* Domain type from netlogon.h */ uint32 domain_trust_attribs; /* Trust attribs from netlogon.h */ bool initialized; /* Did we already ask for the domain mode? */ bool native_mode; /* is this a win2k domain in native mode ? */ bool active_directory; /* is this a win2k active directory ? */ bool primary; /* is this our primary domain ? */ bool internal; /* BUILTIN and member SAM */ bool online; /* is this domain available ? */ time_t startup_time; /* When we set "startup" true. */ bool startup; /* are we in the first 30 seconds after startup_time ? */ bool can_do_samlogon_ex; /* Due to the lack of finer control what type * of DC we have, let us try to do a * credential-chain less samlogon_ex call * with AD and schannel. If this fails with * DCERPC_FAULT_OP_RNG_ERROR, then set this * to False. This variable is around so that * we don't have to try _ex every time. */ bool can_do_ncacn_ip_tcp; /* Lookup methods for this domain (LDAP or RPC) */ struct winbindd_methods *methods; /* the backend methods are used by the cache layer to find the right backend */ struct winbindd_methods *backend; /* Private data for the backends (used for connection cache) */ void *private_data; /* * idmap config settings, used to tell the idmap child which * special domain config to use for a mapping */ bool have_idmap_config; uint32_t id_range_low, id_range_high; /* A working DC */ pid_t dc_probe_pid; /* Child we're using to detect the DC. */ fstring dcname; struct sockaddr_storage dcaddr; /* Sequence number stuff */ time_t last_seq_check; uint32 sequence_number; NTSTATUS last_status; /* The smb connection */ struct winbindd_cm_conn conn; /* The child pid we're talking to */ struct winbindd_child child; /* Callback we use to try put us back online. */ uint32 check_online_timeout; struct timed_event *check_online_event; /* Linked list info */ struct winbindd_domain *prev, *next; }; /* per-domain methods. This is how LDAP vs RPC is selected */ struct winbindd_methods { /* does this backend provide a consistent view of the data? (ie. is the primary group always correct) */ bool consistent; /* get a list of users, returning a WINBIND_USERINFO for each one */ NTSTATUS (*query_user_list)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, uint32 *num_entries, WINBIND_USERINFO **info); /* get a list of domain groups */ NTSTATUS (*enum_dom_groups)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, uint32 *num_entries, struct acct_info **info); /* get a list of domain local groups */ NTSTATUS (*enum_local_groups)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, uint32 *num_entries, struct acct_info **info); /* convert one user or group name to a sid */ NTSTATUS (*name_to_sid)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, enum winbindd_cmd orig_cmd, const char *domain_name, const char *name, DOM_SID *sid, enum lsa_SidType *type); /* convert a sid to a user or group name */ NTSTATUS (*sid_to_name)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, const DOM_SID *sid, char **domain_name, char **name, enum lsa_SidType *type); NTSTATUS (*rids_to_names)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, const DOM_SID *domain_sid, uint32 *rids, size_t num_rids, char **domain_name, char ***names, enum lsa_SidType **types); /* lookup user info for a given SID */ NTSTATUS (*query_user)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, const DOM_SID *user_sid, WINBIND_USERINFO *user_info); /* lookup all groups that a user is a member of. The backend can also choose to lookup by username or rid for this function */ NTSTATUS (*lookup_usergroups)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, const DOM_SID *user_sid, uint32 *num_groups, DOM_SID **user_gids); /* Lookup all aliases that the sids delivered are member of. This is * to implement 'domain local groups' correctly */ NTSTATUS (*lookup_useraliases)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, uint32 num_sids, const DOM_SID *sids, uint32 *num_aliases, uint32 **alias_rids); /* find all members of the group with the specified group_rid */ NTSTATUS (*lookup_groupmem)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, const DOM_SID *group_sid, uint32 *num_names, DOM_SID **sid_mem, char ***names, uint32 **name_types); /* return the current global sequence number */ NTSTATUS (*sequence_number)(struct winbindd_domain *domain, uint32 *seq); /* return the lockout policy */ NTSTATUS (*lockout_policy)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, struct samr_DomInfo12 *lockout_policy); /* return the lockout policy */ NTSTATUS (*password_policy)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, struct samr_DomInfo1 *password_policy); /* enumerate trusted domains */ NTSTATUS (*trusted_domains)(struct winbindd_domain *domain, TALLOC_CTX *mem_ctx, uint32 *num_domains, char ***names, char ***alt_names, DOM_SID **dom_sids); }; /* Used to glue a policy handle and cli_state together */ typedef struct { struct cli_state *cli; POLICY_HND pol; } CLI_POLICY_HND; /* Filled out by IDMAP backends */ struct winbindd_idmap_methods { /* Called when backend is first loaded */ bool (*init)(void); bool (*get_sid_from_uid)(uid_t uid, DOM_SID *sid); bool (*get_sid_from_gid)(gid_t gid, DOM_SID *sid); bool (*get_uid_from_sid)(DOM_SID *sid, uid_t *uid); bool (*get_gid_from_sid)(DOM_SID *sid, gid_t *gid); /* Called when backend is unloaded */ bool (*close)(void); /* Called to dump backend status */ void (*status)(void); }; /* Data structures for dealing with the trusted domain cache */ struct winbindd_tdc_domain { const char *domain_name; const char *dns_name; DOM_SID sid; uint32 trust_flags; uint32 trust_attribs; uint32 trust_type; }; /* Switch for listing users or groups */ enum ent_type { LIST_USERS = 0, LIST_GROUPS, }; struct WINBINDD_MEMORY_CREDS { struct WINBINDD_MEMORY_CREDS *next, *prev; const char *username; /* lookup key. */ uid_t uid; int ref_count; size_t len; uint8_t *nt_hash; /* Base pointer for the following 2 */ uint8_t *lm_hash; char *pass; }; struct WINBINDD_CCACHE_ENTRY { struct WINBINDD_CCACHE_ENTRY *next, *prev; const char *principal_name; const char *ccname; const char *service; const char *username; const char *realm; struct WINBINDD_MEMORY_CREDS *cred_ptr; int ref_count; uid_t uid; time_t create_time; time_t renew_until; time_t refresh_time; struct timed_event *event; }; #include "winbindd/winbindd_proto.h" #define WINBINDD_ESTABLISH_LOOP 30 #define WINBINDD_RESCAN_FREQ lp_winbind_cache_time() #define WINBINDD_PAM_AUTH_KRB5_RENEW_TIME 2592000 /* one month */ #define DOM_SEQUENCE_NONE ((uint32)-1) #define IS_DOMAIN_OFFLINE(x) ( lp_winbind_offline_logon() && \ ( get_global_winbindd_state_offline() \ || !(x)->online ) ) #define IS_DOMAIN_ONLINE(x) (!IS_DOMAIN_OFFLINE(x)) #endif /* _WINBINDD_H */