r25026: Move param/param.h out of includes.h
[gd/samba-autobuild/.git] / source4 / libcli / nbt / namequery.c
1 /* 
2    Unix SMB/CIFS implementation.
3
4    make nbt name query requests
5
6    Copyright (C) Andrew Tridgell 2005
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 3 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, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "libcli/nbt/libnbt.h"
24 #include "lib/socket/socket.h"
25 #include "param/param.h"
26
27 /**
28   send a nbt name query
29 */
30 _PUBLIC_ struct nbt_name_request *nbt_name_query_send(struct nbt_name_socket *nbtsock,
31                                              struct nbt_name_query *io)
32 {
33         struct nbt_name_request *req;
34         struct nbt_name_packet *packet;
35         struct socket_address *dest;
36
37         packet = talloc_zero(nbtsock, struct nbt_name_packet);
38         if (packet == NULL) return NULL;
39
40         packet->qdcount = 1;
41         packet->operation = NBT_OPCODE_QUERY;
42         if (io->in.broadcast) {
43                 packet->operation |= NBT_FLAG_BROADCAST;
44         }
45         if (io->in.wins_lookup) {
46                 packet->operation |= NBT_FLAG_RECURSION_DESIRED;
47         }
48
49         packet->questions = talloc_array(packet, struct nbt_name_question, 1);
50         if (packet->questions == NULL) goto failed;
51
52         packet->questions[0].name = io->in.name;
53         packet->questions[0].question_type = NBT_QTYPE_NETBIOS;
54         packet->questions[0].question_class = NBT_QCLASS_IP;
55
56         dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
57                                            io->in.dest_addr, lp_nbt_port());
58         if (dest == NULL) goto failed;
59         req = nbt_name_request_send(nbtsock, dest, packet,
60                                     io->in.timeout, io->in.retries, False);
61         if (req == NULL) goto failed;
62
63         talloc_free(packet);
64         return req;
65
66 failed:
67         talloc_free(packet);
68         return NULL;    
69 }
70
71 /**
72   wait for a name query reply
73 */
74 _PUBLIC_ NTSTATUS nbt_name_query_recv(struct nbt_name_request *req, 
75                              TALLOC_CTX *mem_ctx, struct nbt_name_query *io)
76 {
77         NTSTATUS status;
78         struct nbt_name_packet *packet;
79         int i;
80
81         status = nbt_name_request_recv(req);
82         if (!NT_STATUS_IS_OK(status) ||
83             req->num_replies == 0) {
84                 talloc_free(req);
85                 return status;
86         }
87         
88         packet = req->replies[0].packet;
89         io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].dest->addr);
90
91         if ((packet->operation & NBT_RCODE) != 0) {
92                 status = nbt_rcode_to_ntstatus(packet->operation & NBT_RCODE);
93                 talloc_free(req);
94                 return status;
95         }
96
97         if (packet->ancount != 1 ||
98             packet->answers[0].rr_type != NBT_QTYPE_NETBIOS ||
99             packet->answers[0].rr_class != NBT_QCLASS_IP) {
100                 talloc_free(req);
101                 return status;
102         }
103
104         io->out.name = packet->answers[0].name;
105         io->out.num_addrs = packet->answers[0].rdata.netbios.length / 6;
106         io->out.reply_addrs = talloc_array(mem_ctx, const char *, io->out.num_addrs+1);
107         if (io->out.reply_addrs == NULL) {
108                 talloc_free(req);
109                 return NT_STATUS_NO_MEMORY;
110         }
111         
112         for (i=0;i<io->out.num_addrs;i++) {
113                 io->out.reply_addrs[i] = talloc_steal(io->out.reply_addrs, 
114                                                       packet->answers[0].rdata.netbios.addresses[i].ipaddr);
115         }
116         io->out.reply_addrs[i] = NULL;
117
118         talloc_steal(mem_ctx, io->out.name.name);
119         talloc_steal(mem_ctx, io->out.name.scope);
120             
121         talloc_free(req);
122
123         return NT_STATUS_OK;
124 }
125
126 /**
127   wait for a name query reply
128 */
129 _PUBLIC_ NTSTATUS nbt_name_query(struct nbt_name_socket *nbtsock, 
130                         TALLOC_CTX *mem_ctx, struct nbt_name_query *io)
131 {
132         struct nbt_name_request *req = nbt_name_query_send(nbtsock, io);
133         return nbt_name_query_recv(req, mem_ctx, io);
134 }
135
136
137 /**
138   send a nbt name status
139 */
140 _PUBLIC_ struct nbt_name_request *nbt_name_status_send(struct nbt_name_socket *nbtsock,
141                                               struct nbt_name_status *io)
142 {
143         struct nbt_name_request *req;
144         struct nbt_name_packet *packet;
145         struct socket_address *dest;
146
147         packet = talloc_zero(nbtsock, struct nbt_name_packet);
148         if (packet == NULL) return NULL;
149
150         packet->qdcount = 1;
151         packet->operation = NBT_OPCODE_QUERY;
152
153         packet->questions = talloc_array(packet, struct nbt_name_question, 1);
154         if (packet->questions == NULL) goto failed;
155
156         packet->questions[0].name = io->in.name;
157         packet->questions[0].question_type = NBT_QTYPE_STATUS;
158         packet->questions[0].question_class = NBT_QCLASS_IP;
159
160         dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
161                                            io->in.dest_addr, lp_nbt_port());
162         if (dest == NULL) goto failed;
163         req = nbt_name_request_send(nbtsock, dest, packet,
164                                     io->in.timeout, io->in.retries, False);
165         if (req == NULL) goto failed;
166
167         talloc_free(packet);
168         return req;
169
170 failed:
171         talloc_free(packet);
172         return NULL;    
173 }
174
175 /**
176   wait for a name status reply
177 */
178 _PUBLIC_ NTSTATUS nbt_name_status_recv(struct nbt_name_request *req, 
179                              TALLOC_CTX *mem_ctx, struct nbt_name_status *io)
180 {
181         NTSTATUS status;
182         struct nbt_name_packet *packet;
183         int i;
184
185         status = nbt_name_request_recv(req);
186         if (!NT_STATUS_IS_OK(status) ||
187             req->num_replies == 0) {
188                 talloc_free(req);
189                 return status;
190         }
191         
192         packet = req->replies[0].packet;
193         io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].dest->addr);
194
195         if ((packet->operation & NBT_RCODE) != 0) {
196                 status = nbt_rcode_to_ntstatus(packet->operation & NBT_RCODE);
197                 talloc_free(req);
198                 return status;
199         }
200
201         if (packet->ancount != 1 ||
202             packet->answers[0].rr_type != NBT_QTYPE_STATUS ||
203             packet->answers[0].rr_class != NBT_QCLASS_IP) {
204                 talloc_free(req);
205                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
206         }
207
208         io->out.name = packet->answers[0].name;
209         talloc_steal(mem_ctx, io->out.name.name);
210         talloc_steal(mem_ctx, io->out.name.scope);
211
212         io->out.status = packet->answers[0].rdata.status;
213         talloc_steal(mem_ctx, io->out.status.names);
214         for (i=0;i<io->out.status.num_names;i++) {
215                 talloc_steal(io->out.status.names, io->out.status.names[i].name);
216         }
217
218             
219         talloc_free(req);
220
221         return NT_STATUS_OK;
222 }
223
224 /**
225   wait for a name status reply
226 */
227 _PUBLIC_ NTSTATUS nbt_name_status(struct nbt_name_socket *nbtsock, 
228                         TALLOC_CTX *mem_ctx, struct nbt_name_status *io)
229 {
230         struct nbt_name_request *req = nbt_name_status_send(nbtsock, io);
231         return nbt_name_status_recv(req, mem_ctx, io);
232 }
233
234