source: vendor/current/source4/rpc_server/epmapper/rpc_epmapper.c@ 740

Last change on this file since 740 was 740, checked in by Silvan Scherrer, 12 years ago

Samba Server: update vendor to 3.6.0
File size: 7.2 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 endpoint server for the epmapper pipe
5
6 Copyright (C) Andrew Tridgell 2003
7 Copyright (C) Jelmer Vernooij 2004
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program 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
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21*/
22
23#include "includes.h"
24#include "librpc/gen_ndr/ndr_epmapper.h"
25#include "rpc_server/dcerpc_server.h"
26
27typedef uint32_t error_status_t;
28
29/* handle types for this module */
30enum handle_types {HTYPE_LOOKUP};
31
32/* a endpoint combined with an interface description */
33struct dcesrv_ep_iface {
34 const char *name;
35 struct epm_tower ep;
36};
37
38/*
39 build a list of all interfaces handled by all endpoint servers
40*/
41static uint32_t build_ep_list(TALLOC_CTX *mem_ctx,
42 struct dcesrv_endpoint *endpoint_list,
43 struct dcesrv_ep_iface **eps)
44{
45 struct dcesrv_endpoint *d;
46 uint32_t total = 0;
47 NTSTATUS status;
48
49 *eps = NULL;
50
51 for (d=endpoint_list; d; d=d->next) {
52 struct dcesrv_if_list *iface;
53 struct dcerpc_binding *description;
54
55 for (iface=d->interface_list;iface;iface=iface->next) {
56 (*eps) = talloc_realloc(mem_ctx,
57 *eps,
58 struct dcesrv_ep_iface,
59 total + 1);
60 if (!*eps) {
61 return 0;
62 }
63 (*eps)[total].name = iface->iface.name;
64
65 description = d->ep_description;
66 description->object = iface->iface.syntax_id;
67
68 status = dcerpc_binding_build_tower(*eps, description, &(*eps)[total].ep);
69 if (NT_STATUS_IS_ERR(status)) {
70 DEBUG(1, ("Unable to build tower for %s\n", iface->iface.name));
71 continue;
72 }
73 total++;
74 }
75 }
76
77 return total;
78}
79
80
81static error_status_t dcesrv_epm_Insert(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx, struct epm_Insert *r)
82{
83 DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
84}
85
86static error_status_t dcesrv_epm_Delete(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
87 struct epm_Delete *r)
88{
89 DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
90}
91
92
93/*
94 implement epm_Lookup. This call is used to enumerate the interfaces
95 available on a rpc server
96*/
97static error_status_t dcesrv_epm_Lookup(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
98 struct epm_Lookup *r)
99{
100 struct dcesrv_handle *h;
101 struct rpc_eps {
102 uint32_t count;
103 struct dcesrv_ep_iface *e;
104 } *eps;
105 uint32_t num_ents;
106 unsigned int i;
107
108 DCESRV_PULL_HANDLE_FAULT(h, r->in.entry_handle, HTYPE_LOOKUP);
109
110 eps = h->data;
111
112 if (!eps) {
113 /* this is the first call - fill the list. Subsequent calls
114 will feed from this list, stored in the handle */
115 eps = talloc(h, struct rpc_eps);
116 if (!eps) {
117 return EPMAPPER_STATUS_NO_MEMORY;
118 }
119 h->data = eps;
120
121 eps->count = build_ep_list(h, dce_call->conn->dce_ctx->endpoint_list, &eps->e);
122 }
123
124 /* return the next N elements */
125 num_ents = r->in.max_ents;
126 if (num_ents > eps->count) {
127 num_ents = eps->count;
128 }
129
130 *r->out.entry_handle = h->wire_handle;
131 r->out.num_ents = talloc(mem_ctx, uint32_t);
132 *r->out.num_ents = num_ents;
133
134 if (num_ents == 0) {
135 r->out.entries = NULL;
136 ZERO_STRUCTP(r->out.entry_handle);
137 talloc_free(h);
138 return EPMAPPER_STATUS_NO_MORE_ENTRIES;
139 }
140
141 r->out.entries = talloc_array(mem_ctx, struct epm_entry_t, num_ents);
142 if (!r->out.entries) {
143 return EPMAPPER_STATUS_NO_MEMORY;
144 }
145
146 for (i=0;i<num_ents;i++) {
147 ZERO_STRUCT(r->out.entries[i].object);
148 r->out.entries[i].annotation = eps->e[i].name;
149 r->out.entries[i].tower = talloc(mem_ctx, struct epm_twr_t);
150 if (!r->out.entries[i].tower) {
151 return EPMAPPER_STATUS_NO_MEMORY;
152 }
153 r->out.entries[i].tower->tower = eps->e[i].ep;
154 }
155
156 eps->count -= num_ents;
157 eps->e += num_ents;
158
159 return EPMAPPER_STATUS_OK;
160}
161
162
163/*
164 implement epm_Map. This is used to find the specific endpoint to talk to given
165 a generic protocol tower
166*/
167static error_status_t dcesrv_epm_Map(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
168 struct epm_Map *r)
169{
170 uint32_t count;
171 unsigned int i;
172 struct dcesrv_ep_iface *eps;
173 struct epm_floor *floors;
174 enum dcerpc_transport_t transport;
175 struct ndr_syntax_id ndr_syntax;
176
177 count = build_ep_list(mem_ctx, dce_call->conn->dce_ctx->endpoint_list, &eps);
178
179 ZERO_STRUCT(*r->out.entry_handle);
180 r->out.num_towers = talloc(mem_ctx, uint32_t);
181 if (!r->out.num_towers) {
182 return EPMAPPER_STATUS_NO_MEMORY;
183 }
184 *r->out.num_towers = 1;
185 r->out.towers = talloc(mem_ctx, struct epm_twr_p_t);
186 if (!r->out.towers) {
187 return EPMAPPER_STATUS_NO_MEMORY;
188 }
189 r->out.towers->twr = talloc(mem_ctx, struct epm_twr_t);
190 if (!r->out.towers->twr) {
191 return EPMAPPER_STATUS_NO_MEMORY;
192 }
193
194 if (!r->in.map_tower || r->in.max_towers == 0 ||
195 r->in.map_tower->tower.num_floors < 3) {
196 goto failed;
197 }
198
199 floors = r->in.map_tower->tower.floors;
200
201 dcerpc_floor_get_lhs_data(&r->in.map_tower->tower.floors[1], &ndr_syntax);
202
203 if (floors[1].lhs.protocol != EPM_PROTOCOL_UUID ||
204 !GUID_equal(&ndr_syntax.uuid, &ndr_transfer_syntax.uuid) ||
205 ndr_syntax.if_version != ndr_transfer_syntax.if_version) {
206 goto failed;
207 }
208
209 transport = dcerpc_transport_by_tower(&r->in.map_tower->tower);
210
211 if (transport == -1) {
212 DEBUG(2, ("Client requested unknown transport with levels: "));
213 for (i = 2; i < r->in.map_tower->tower.num_floors; i++) {
214 DEBUG(2, ("%d, ", r->in.map_tower->tower.floors[i].lhs.protocol));
215 }
216 DEBUG(2, ("\n"));
217 goto failed;
218 }
219
220 for (i=0;i<count;i++) {
221 if (
222 data_blob_cmp(&r->in.map_tower->tower.floors[0].lhs.lhs_data,
223 &eps[i].ep.floors[0].lhs.lhs_data) != 0
224 || transport != dcerpc_transport_by_tower(&eps[i].ep)) {
225 continue;
226 }
227
228 r->out.towers->twr->tower = eps[i].ep;
229 r->out.towers->twr->tower_length = 0;
230 return EPMAPPER_STATUS_OK;
231 }
232
233
234failed:
235 *r->out.num_towers = 0;
236 r->out.towers->twr = NULL;
237
238 return EPMAPPER_STATUS_NO_MORE_ENTRIES;
239}
240
241static error_status_t dcesrv_epm_LookupHandleFree(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
242 struct epm_LookupHandleFree *r)
243{
244 DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
245}
246
247static error_status_t dcesrv_epm_InqObject(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
248 struct epm_InqObject *r)
249{
250 DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
251}
252
253static error_status_t dcesrv_epm_MgmtDelete(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
254 struct epm_MgmtDelete *r)
255{
256 DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
257}
258
259static error_status_t dcesrv_epm_MapAuth(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
260 struct epm_MapAuth *r)
261{
262 DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
263}
264
265/* include the generated boilerplate */
266#include "librpc/gen_ndr/ndr_epmapper_s.c"
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