2 Unix SMB/CIFS implementation.
4 make nbt name query requests
6 Copyright (C) Andrew Tridgell 2005
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.
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.
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/>.
23 #include "../libcli/nbt/libnbt.h"
24 #include "../libcli/nbt/nbt_proto.h"
25 #include "lib/socket/socket.h"
30 _PUBLIC_ struct nbt_name_request *nbt_name_query_send(struct nbt_name_socket *nbtsock,
31 struct nbt_name_query *io)
33 struct nbt_name_request *req;
34 struct nbt_name_packet *packet;
35 struct socket_address *dest;
37 packet = talloc_zero(nbtsock, struct nbt_name_packet);
38 if (packet == NULL) return NULL;
41 packet->operation = NBT_OPCODE_QUERY;
42 if (io->in.broadcast) {
43 packet->operation |= NBT_FLAG_BROADCAST;
45 if (io->in.wins_lookup) {
46 packet->operation |= NBT_FLAG_RECURSION_DESIRED;
49 packet->questions = talloc_array(packet, struct nbt_name_question, 1);
50 if (packet->questions == NULL) goto failed;
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;
56 dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
57 io->in.dest_addr, io->in.dest_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;
72 wait for a name query reply
74 _PUBLIC_ NTSTATUS nbt_name_query_recv(struct nbt_name_request *req,
75 TALLOC_CTX *mem_ctx, struct nbt_name_query *io)
78 struct nbt_name_packet *packet;
81 status = nbt_name_request_recv(req);
82 if (!NT_STATUS_IS_OK(status) ||
83 req->num_replies == 0) {
88 packet = req->replies[0].packet;
89 io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].dest->addr);
91 if ((packet->operation & NBT_RCODE) != 0) {
92 status = nbt_rcode_to_ntstatus(packet->operation & NBT_RCODE);
97 if (packet->ancount != 1 ||
98 packet->answers[0].rr_type != NBT_QTYPE_NETBIOS ||
99 packet->answers[0].rr_class != NBT_QCLASS_IP) {
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) {
109 return NT_STATUS_NO_MEMORY;
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);
116 io->out.reply_addrs[i] = NULL;
118 talloc_steal(mem_ctx, io->out.name.name);
119 talloc_steal(mem_ctx, io->out.name.scope);
127 wait for a name query reply
129 _PUBLIC_ NTSTATUS nbt_name_query(struct nbt_name_socket *nbtsock,
130 TALLOC_CTX *mem_ctx, struct nbt_name_query *io)
132 struct nbt_name_request *req = nbt_name_query_send(nbtsock, io);
133 return nbt_name_query_recv(req, mem_ctx, io);
138 send a nbt name status
140 _PUBLIC_ struct nbt_name_request *nbt_name_status_send(struct nbt_name_socket *nbtsock,
141 struct nbt_name_status *io)
143 struct nbt_name_request *req;
144 struct nbt_name_packet *packet;
145 struct socket_address *dest;
147 packet = talloc_zero(nbtsock, struct nbt_name_packet);
148 if (packet == NULL) return NULL;
151 packet->operation = NBT_OPCODE_QUERY;
153 packet->questions = talloc_array(packet, struct nbt_name_question, 1);
154 if (packet->questions == NULL) goto failed;
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;
160 dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
161 io->in.dest_addr, io->in.dest_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;
176 wait for a name status reply
178 _PUBLIC_ NTSTATUS nbt_name_status_recv(struct nbt_name_request *req,
179 TALLOC_CTX *mem_ctx, struct nbt_name_status *io)
182 struct nbt_name_packet *packet;
185 status = nbt_name_request_recv(req);
186 if (!NT_STATUS_IS_OK(status) ||
187 req->num_replies == 0) {
192 packet = req->replies[0].packet;
193 io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].dest->addr);
195 if ((packet->operation & NBT_RCODE) != 0) {
196 status = nbt_rcode_to_ntstatus(packet->operation & NBT_RCODE);
201 if (packet->ancount != 1 ||
202 packet->answers[0].rr_type != NBT_QTYPE_STATUS ||
203 packet->answers[0].rr_class != NBT_QCLASS_IP) {
205 return NT_STATUS_INVALID_NETWORK_RESPONSE;
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);
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);
225 wait for a name status reply
227 _PUBLIC_ NTSTATUS nbt_name_status(struct nbt_name_socket *nbtsock,
228 TALLOC_CTX *mem_ctx, struct nbt_name_status *io)
230 struct nbt_name_request *req = nbt_name_status_send(nbtsock, io);
231 return nbt_name_status_recv(req, mem_ctx, io);