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-rw-r--r--source4/libcli/nbt/namequery.c277
1 files changed, 277 insertions, 0 deletions
diff --git a/source4/libcli/nbt/namequery.c b/source4/libcli/nbt/namequery.c
new file mode 100644
index 0000000000..23a63ede11
--- /dev/null
+++ b/source4/libcli/nbt/namequery.c
@@ -0,0 +1,277 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ make nbt name query requests
+
+ Copyright (C) Andrew Tridgell 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "libcli/nbt/libnbt.h"
+#include "system/network.h"
+
+/*
+ send a nbt name query
+*/
+struct nbt_name_request *nbt_name_query_send(struct nbt_name_socket *nbtsock,
+ struct nbt_name_query *io)
+{
+ struct nbt_name_request *req;
+ struct nbt_name_packet *packet;
+
+ packet = talloc_zero(nbtsock, struct nbt_name_packet);
+ if (packet == NULL) return NULL;
+
+ packet->qdcount = 1;
+ packet->operation = NBT_OPCODE_QUERY;
+ if (io->in.broadcast) {
+ packet->operation |= NBT_FLAG_BROADCAST;
+ }
+ if (io->in.wins_lookup) {
+ packet->operation |= NBT_FLAG_RECURSION_DESIRED;
+ }
+
+ packet->questions = talloc_array(packet, struct nbt_name_question, 1);
+ if (packet->questions == NULL) goto failed;
+
+ packet->questions[0].name = io->in.name;
+ packet->questions[0].question_type = NBT_QTYPE_NETBIOS;
+ packet->questions[0].question_class = NBT_QCLASS_IP;
+
+ req = nbt_name_request_send(nbtsock, io->in.dest_addr, NBT_NAME_SERVICE_PORT, packet,
+ timeval_current_ofs(io->in.timeout, 0), False);
+ if (req == NULL) goto failed;
+
+ talloc_steal(req, packet);
+
+ return req;
+
+failed:
+ talloc_free(packet);
+ return NULL;
+}
+
+/*
+ wait for a name query replu
+*/
+NTSTATUS nbt_name_query_recv(struct nbt_name_request *req,
+ TALLOC_CTX *mem_ctx, struct nbt_name_query *io)
+{
+ NTSTATUS status;
+ struct nbt_name_packet *packet;
+ const char *addr;
+ struct in_addr in;
+
+ status = nbt_name_request_recv(req);
+ if (!NT_STATUS_IS_OK(status) ||
+ req->num_replies == 0) {
+ talloc_free(req);
+ return status;
+ }
+
+ packet = req->replies[0].packet;
+ io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].reply_addr);
+
+ if (packet->ancount != 1 ||
+ packet->answers[0].rr_type != NBT_QTYPE_NETBIOS ||
+ packet->answers[0].rr_class != NBT_QCLASS_IP) {
+ talloc_free(req);
+ return NT_STATUS_INVALID_NETWORK_RESPONSE;
+ }
+
+ io->out.name = packet->answers[0].name;
+ in.s_addr = htonl(packet->answers[0].rdata.netbios.ipaddr);
+ addr = inet_ntoa(in);
+ if (addr == NULL) {
+ talloc_free(req);
+ return NT_STATUS_NO_MEMORY;
+ }
+ io->out.reply_addr = talloc_strdup(mem_ctx, addr);
+ talloc_steal(mem_ctx, io->out.name.name);
+ talloc_steal(mem_ctx, io->out.name.scope);
+
+ talloc_free(req);
+
+ return NT_STATUS_OK;
+}
+
+/*
+ wait for a name query replu
+*/
+NTSTATUS nbt_name_query(struct nbt_name_socket *nbtsock,
+ TALLOC_CTX *mem_ctx, struct nbt_name_query *io)
+{
+ struct nbt_name_request *req = nbt_name_query_send(nbtsock, io);
+ return nbt_name_query_recv(req, mem_ctx, io);
+}
+
+
+/*
+ send a nbt name status
+*/
+struct nbt_name_request *nbt_name_status_send(struct nbt_name_socket *nbtsock,
+ struct nbt_name_status *io)
+{
+ struct nbt_name_request *req;
+ struct nbt_name_packet *packet;
+
+ packet = talloc_zero(nbtsock, struct nbt_name_packet);
+ if (packet == NULL) return NULL;
+
+ packet->qdcount = 1;
+ packet->operation = NBT_OPCODE_QUERY;
+
+ packet->questions = talloc_array(packet, struct nbt_name_question, 1);
+ if (packet->questions == NULL) goto failed;
+
+ packet->questions[0].name = io->in.name;
+ packet->questions[0].question_type = NBT_QTYPE_STATUS;
+ packet->questions[0].question_class = NBT_QCLASS_IP;
+
+ req = nbt_name_request_send(nbtsock, io->in.dest_addr, NBT_NAME_SERVICE_PORT, packet,
+ timeval_current_ofs(io->in.timeout, 0), False);
+ if (req == NULL) goto failed;
+
+ talloc_steal(req, packet);
+
+ return req;
+
+failed:
+ talloc_free(packet);
+ return NULL;
+}
+
+/*
+ wait for a name status replu
+*/
+NTSTATUS nbt_name_status_recv(struct nbt_name_request *req,
+ TALLOC_CTX *mem_ctx, struct nbt_name_status *io)
+{
+ NTSTATUS status;
+ struct nbt_name_packet *packet;
+ int i;
+
+ status = nbt_name_request_recv(req);
+ if (!NT_STATUS_IS_OK(status) ||
+ req->num_replies == 0) {
+ talloc_free(req);
+ return status;
+ }
+
+ packet = req->replies[0].packet;
+ io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].reply_addr);
+
+ if (packet->ancount != 1 ||
+ packet->answers[0].rr_type != NBT_QTYPE_STATUS ||
+ packet->answers[0].rr_class != NBT_QCLASS_IP) {
+ talloc_free(req);
+ return NT_STATUS_INVALID_NETWORK_RESPONSE;
+ }
+
+ io->out.name = packet->answers[0].name;
+ talloc_steal(mem_ctx, io->out.name.name);
+ talloc_steal(mem_ctx, io->out.name.scope);
+
+ io->out.status = packet->answers[0].rdata.status;
+ talloc_steal(mem_ctx, io->out.status.names);
+ for (i=0;i<io->out.status.num_names;i++) {
+ talloc_steal(io->out.status.names, io->out.status.names[i].name);
+ }
+
+
+ talloc_free(req);
+
+ return NT_STATUS_OK;
+}
+
+/*
+ wait for a name status replu
+*/
+NTSTATUS nbt_name_status(struct nbt_name_socket *nbtsock,
+ TALLOC_CTX *mem_ctx, struct nbt_name_status *io)
+{
+ struct nbt_name_request *req = nbt_name_status_send(nbtsock, io);
+ return nbt_name_status_recv(req, mem_ctx, io);
+}
+
+
+/*
+ some test functions - will be removed when nbt is hooked in everywhere
+*/
+void test_name_status(const char *name, const char *addr)
+{
+ struct nbt_name_status io;
+ NTSTATUS status;
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+ struct nbt_name_socket *nbtsock;
+ int i;
+
+ nbtsock = nbt_name_socket_init(tmp_ctx, NULL);
+
+ io.in.name.name = name;
+ io.in.name.scope = NULL;
+ io.in.name.type = NBT_NAME_CLIENT;
+ io.in.dest_addr = addr;
+ io.in.timeout = 5;
+
+ status = nbt_name_status(nbtsock, tmp_ctx, &io);
+ if (!NT_STATUS_IS_OK(status)) {
+ printf("status failed for %s - %s\n", name, nt_errstr(status));
+ talloc_free(tmp_ctx);
+ exit(1);
+ return;
+ }
+
+ printf("Received %d names for %s\n", io.out.status.num_names, io.out.name.name);
+ for (i=0;i<io.out.status.num_names;i++) {
+ printf("\t%s#%02x 0x%04x\n",
+ io.out.status.names[i].name,
+ io.out.status.names[i].type,
+ io.out.status.names[i].nb_flags);
+ }
+ talloc_free(tmp_ctx);
+}
+
+
+void test_name_query(const char *name)
+{
+ struct nbt_name_query io;
+ NTSTATUS status;
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+ struct nbt_name_socket *nbtsock;
+
+ nbtsock = nbt_name_socket_init(tmp_ctx, NULL);
+
+ io.in.name.name = name;
+ io.in.name.scope = NULL;
+ io.in.name.type = NBT_NAME_SERVER;
+ io.in.dest_addr = "255.255.255.255";
+ io.in.broadcast = True;
+ io.in.wins_lookup = False;
+ io.in.timeout = 5;
+
+ status = nbt_name_query(nbtsock, tmp_ctx, &io);
+ if (!NT_STATUS_IS_OK(status)) {
+ printf("query failed for %s - %s\n", name, nt_errstr(status));
+ } else {
+ printf("response %s is at %s\n", io.out.name.name, io.out.reply_addr);
+ test_name_status("*", io.out.reply_addr);
+ }
+
+ talloc_free(tmp_ctx);
+}
+
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