| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | Main winbindd server routines
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| 4 |
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| 5 | Copyright (C) Stefan Metzmacher 2005
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| 6 | Copyright (C) Andrew Tridgell 2005
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| 7 |
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| 8 | This program is free software; you can redistribute it and/or modify
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| 9 | it under the terms of the GNU General Public License as published by
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| 10 | the Free Software Foundation; either version 3 of the License, or
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| 11 | (at your option) any later version.
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| 12 |
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| 13 | This program is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | GNU General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License
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| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 20 | */
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| 21 |
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| 22 | #include "nsswitch/winbind_nss_config.h"
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| 23 | #include "nsswitch/winbind_struct_protocol.h"
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| 24 | #include "winbind/idmap.h"
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| 25 | #include "libnet/libnet.h"
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| 26 |
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| 27 | #define WINBINDD_SAMBA3_SOCKET "pipe"
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| 28 | /* the privileged socket is in smbd_tmp_dir() */
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| 29 | #define WINBINDD_SAMBA3_PRIVILEGED_SOCKET "winbind_pipe"
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| 30 |
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| 31 | /* this struct stores global data for the winbind task */
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| 32 | struct wbsrv_service {
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| 33 | struct task_server *task;
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| 34 |
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| 35 | const struct dom_sid *primary_sid;
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| 36 | struct wbsrv_domain *domains;
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| 37 | struct idmap_context *idmap_ctx;
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| 38 |
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| 39 | const char *priv_socket_path;
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| 40 | };
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| 41 |
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| 42 | struct wbsrv_samconn {
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| 43 | struct wbsrv_domain *domain;
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| 44 | void *private_data;
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| 45 |
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| 46 | struct composite_context (*seqnum_send)(struct wbsrv_samconn *);
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| 47 | NTSTATUS (*seqnum_recv)(struct composite_context *, uint64_t *);
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| 48 | };
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| 49 |
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| 50 | struct wb_dom_info {
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| 51 | const char *name;
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| 52 | const char *dns_name;
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| 53 | const struct dom_sid *sid;
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| 54 |
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| 55 | int num_dcs;
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| 56 | struct nbt_dc_name *dcs;
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| 57 | };
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| 58 |
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| 59 | struct wbsrv_domain {
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| 60 | struct wbsrv_domain *next, *prev;
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| 61 |
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| 62 | struct wb_dom_info *info;
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| 63 |
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| 64 | /* Details for the server we are currently talking to */
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| 65 | const char *dc_address;
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| 66 | const char *dc_name;
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| 67 |
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| 68 | struct libnet_context *libnet_ctx;
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| 69 |
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| 70 | struct dcerpc_binding *lsa_binding;
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| 71 |
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| 72 | struct dcerpc_binding *samr_binding;
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| 73 |
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| 74 | struct dcerpc_pipe *netlogon_pipe;
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| 75 | struct dcerpc_binding *netlogon_binding;
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| 76 | };
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| 77 |
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| 78 | /*
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| 79 | state of a listen socket and it's protocol information
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| 80 | */
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| 81 | struct wbsrv_listen_socket {
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| 82 | const char *socket_path;
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| 83 | struct wbsrv_service *service;
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| 84 | bool privileged;
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| 85 | };
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| 86 |
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| 87 | /*
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| 88 | state of an open winbind connection
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| 89 | */
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| 90 | struct wbsrv_connection {
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| 91 | /* stream connection we belong to */
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| 92 | struct stream_connection *conn;
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| 93 |
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| 94 | /* the listening socket we belong to, it holds protocol hooks */
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| 95 | struct wbsrv_listen_socket *listen_socket;
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| 96 |
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| 97 | /* storage for protocol specific data */
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| 98 | void *protocol_private_data;
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| 99 |
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| 100 | /* how many calls are pending */
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| 101 | uint32_t pending_calls;
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| 102 |
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| 103 | struct packet_context *packet;
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| 104 |
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| 105 | struct loadparm_context *lp_ctx;
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| 106 | };
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| 107 |
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| 108 | #define WBSRV_SAMBA3_SET_STRING(dest, src) do { \
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| 109 | safe_strcpy(dest, src, sizeof(dest)-1);\
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| 110 | } while(0)
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| 111 |
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| 112 | /*
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| 113 | state of a pwent query
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| 114 | */
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| 115 | struct wbsrv_pwent {
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| 116 | /* Current UserList structure, contains 1+ user structs */
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| 117 | struct libnet_UserList *user_list;
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| 118 |
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| 119 | /* Index of the next user struct in the current UserList struct */
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| 120 | uint32_t page_index;
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| 121 |
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| 122 | /* The libnet_ctx to use for the libnet_UserList call */
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| 123 | struct libnet_context *libnet_ctx;
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| 124 | };
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| 125 |
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| 126 | /*
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| 127 | state of one request
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| 128 |
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| 129 | NOTE about async replies:
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| 130 | if the backend wants to reply later:
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| 131 |
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| 132 | - it should set the WBSRV_CALL_FLAGS_REPLY_ASYNC flag, and may set a
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| 133 | talloc_destructor on the this structure or on the private_data (if it's a
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| 134 | talloc child of this structure), so that wbsrv_terminate_connection
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| 135 | called by another call clean up the whole connection correct.
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| 136 | - When the backend is ready to reply it should call wbsrv_send_reply(call),
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| 137 | wbsrv_send_reply implies talloc_free(call), so the backend should use
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| 138 | talloc_reference(call), if it needs it later.
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| 139 | - If wbsrv_send_reply doesn't return NT_STATUS_OK, the backend function
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| 140 | should call, wbsrv_terminate_connection(call->wbconn, nt_errstr(status));
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| 141 | return;
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| 142 |
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| 143 | */
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| 144 | struct wbsrv_samba3_call {
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| 145 | #define WBSRV_CALL_FLAGS_REPLY_ASYNC 0x00000001
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| 146 | uint32_t flags;
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| 147 |
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| 148 | /* the connection the call belongs to */
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| 149 | struct wbsrv_connection *wbconn;
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| 150 |
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| 151 | /* the backend should use this event context */
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| 152 | struct tevent_context *event_ctx;
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| 153 |
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| 154 | /* here the backend can store stuff like composite_context's ... */
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| 155 | void *private_data;
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| 156 |
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| 157 | /* the request structure of the samba3 protocol */
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| 158 | struct winbindd_request request;
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| 159 |
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| 160 | /* the response structure of the samba3 protocol*/
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| 161 | struct winbindd_response response;
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| 162 | };
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| 163 |
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| 164 | struct netr_LMSessionKey;
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| 165 | struct netr_UserSessionKey;
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| 166 | struct winbind_SamLogon;
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| 167 |
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| 168 | #include "winbind/wb_async_helpers.h"
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| 169 | #include "winbind/wb_proto.h"
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