1 /*
2 Unix SMB/CIFS implementation.
3
4 srvsvc pipe ntvfs helper functions
5
6 Copyright (C) Stefan (metze) Metzmacher 2006
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program 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
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22 #include "includes.h"
23 #include "ntvfs/ntvfs.h"
24 #include "rpc_server/dcerpc_server.h"
25 #include "librpc/gen_ndr/ndr_srvsvc.h"
26 #include "rpc_server/common/common.h"
27 #include "rpc_server/srvsvc/proto.h"
28 #include "lib/socket/socket.h"
29
srvsvc_get_my_addr(void * p,TALLOC_CTX * mem_ctx)30 struct socket_address *srvsvc_get_my_addr(void *p, TALLOC_CTX *mem_ctx)
31 {
32 struct dcesrv_connection *conn = talloc_get_type(p, struct dcesrv_connection);
33 return dcesrv_connection_get_my_addr(conn, mem_ctx);
34 }
35
srvsvc_get_peer_addr(void * p,TALLOC_CTX * mem_ctx)36 struct socket_address *srvsvc_get_peer_addr(void *p, TALLOC_CTX *mem_ctx)
37 {
38 struct dcesrv_connection *conn = talloc_get_type(p, struct dcesrv_connection);
39 return dcesrv_connection_get_peer_addr(conn, mem_ctx);
40 }
41
42 struct srvsvc_ntvfs_ctx {
43 struct ntvfs_context *ntvfs;
44 };
45
srvsvc_ntvfs_ctx_destructor(struct srvsvc_ntvfs_ctx * c)46 static int srvsvc_ntvfs_ctx_destructor(struct srvsvc_ntvfs_ctx *c)
47 {
48 ntvfs_disconnect(c->ntvfs);
49 return 0;
50 }
51
srvsvc_create_ntvfs_context(struct dcesrv_call_state * dce_call,TALLOC_CTX * mem_ctx,const char * share,struct ntvfs_context ** _ntvfs)52 NTSTATUS srvsvc_create_ntvfs_context(struct dcesrv_call_state *dce_call,
53 TALLOC_CTX *mem_ctx,
54 const char *share,
55 struct ntvfs_context **_ntvfs)
56 {
57 NTSTATUS status;
58 struct srvsvc_ntvfs_ctx *c;
59 struct ntvfs_request *ntvfs_req;
60 enum ntvfs_type type;
61 struct share_context *sctx;
62 struct share_config *scfg;
63 const char *sharetype;
64
65 status = share_get_context(mem_ctx, &sctx);
66 if (!NT_STATUS_IS_OK(status)) {
67 return status;
68 }
69
70 status = share_get_config(mem_ctx, sctx, share, &scfg);
71 if (!NT_STATUS_IS_OK(status)) {
72 DEBUG(0,("srvsvc_create_ntvfs_context: couldn't find service %s\n", share));
73 return status;
74 }
75
76 #if 0 /* TODO: fix access cecking */
77 if (!socket_check_access(dce_call->connection->socket,
78 scfg->name,
79 share_string_list_option(scfg, SHARE_HOSTS_ALLOW),
80 share_string_list_option(scfg, SHARE_HOSTS_DENY))) {
81 return NT_STATUS_ACCESS_DENIED;
82 }
83 #endif
84
85 /* work out what sort of connection this is */
86 sharetype = share_string_option(scfg, SHARE_TYPE, SHARE_TYPE_DEFAULT);
87 if (sharetype && strcmp(sharetype, "IPC") == 0) {
88 type = NTVFS_IPC;
89 } else if (sharetype && strcmp(sharetype, "PRINTER")) {
90 type = NTVFS_PRINT;
91 } else {
92 type = NTVFS_DISK;
93 }
94
95 c = talloc(mem_ctx, struct srvsvc_ntvfs_ctx);
96 NT_STATUS_HAVE_NO_MEMORY(c);
97
98 /* init ntvfs function pointers */
99 status = ntvfs_init_connection(c, scfg, type,
100 PROTOCOL_NT1,
101 dce_call->event_ctx,
102 dce_call->conn->msg_ctx,
103 dce_call->conn->server_id,
104 &c->ntvfs);
105 if (!NT_STATUS_IS_OK(status)) {
106 DEBUG(0, ("srvsvc_create_ntvfs_context: ntvfs_init_connection failed for service %s\n",
107 scfg->name));
108 return status;
109 }
110 talloc_set_destructor(c, srvsvc_ntvfs_ctx_destructor);
111
112 /*
113 * NOTE: we only set the addr callbacks as we're not interesseted in oplocks or in getting file handles
114 */
115 status = ntvfs_set_addr_callbacks(c->ntvfs, srvsvc_get_my_addr, srvsvc_get_peer_addr, dce_call->conn);
116 if (!NT_STATUS_IS_OK(status)) {
117 DEBUG(0,("srvsvc_create_ntvfs_context: NTVFS failed to set the addr callbacks!\n"));
118 return status;
119 }
120
121 ntvfs_req = ntvfs_request_create(c->ntvfs, mem_ctx,
122 dce_call->conn->auth_state.session_info,
123 0, /* TODO: fill in PID */
124 dce_call->time,
125 NULL, NULL, 0);
126 NT_STATUS_HAVE_NO_MEMORY(ntvfs_req);
127
128 /* Invoke NTVFS connection hook */
129 status = ntvfs_connect(ntvfs_req, scfg->name);
130 if (!NT_STATUS_IS_OK(status)) {
131 DEBUG(0,("srvsvc_create_ntvfs_context: NTVFS ntvfs_connect() failed!\n"));
132 return status;
133 }
134
135 *_ntvfs = c->ntvfs;
136 return NT_STATUS_OK;
137 }
138