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-rw-r--r--libcli/nbt/namequery.c235
1 files changed, 235 insertions, 0 deletions
diff --git a/libcli/nbt/namequery.c b/libcli/nbt/namequery.c
new file mode 100644
index 0000000000..ed3d8a2492
--- /dev/null
+++ b/libcli/nbt/namequery.c
@@ -0,0 +1,235 @@
+/*
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "../libcli/nbt/libnbt.h"
+#include "../libcli/nbt/nbt_proto.h"
+#include "lib/socket/socket.h"
+#include "param/param.h"
+
+/**
+ send a nbt name query
+*/
+_PUBLIC_ 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;
+ struct socket_address *dest;
+
+ 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;
+
+ dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
+ io->in.dest_addr, io->in.dest_port);
+ if (dest == NULL) goto failed;
+ req = nbt_name_request_send(nbtsock, dest, packet,
+ io->in.timeout, io->in.retries, false);
+ if (req == NULL) goto failed;
+
+ talloc_free(packet);
+ return req;
+
+failed:
+ talloc_free(packet);
+ return NULL;
+}
+
+/**
+ wait for a name query reply
+*/
+_PUBLIC_ 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;
+ 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].dest->addr);
+
+ if ((packet->operation & NBT_RCODE) != 0) {
+ status = nbt_rcode_to_ntstatus(packet->operation & NBT_RCODE);
+ talloc_free(req);
+ return status;
+ }
+
+ if (packet->ancount != 1 ||
+ packet->answers[0].rr_type != NBT_QTYPE_NETBIOS ||
+ packet->answers[0].rr_class != NBT_QCLASS_IP) {
+ talloc_free(req);
+ return status;
+ }
+
+ io->out.name = packet->answers[0].name;
+ io->out.num_addrs = packet->answers[0].rdata.netbios.length / 6;
+ io->out.reply_addrs = talloc_array(mem_ctx, const char *, io->out.num_addrs+1);
+ if (io->out.reply_addrs == NULL) {
+ talloc_free(req);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ for (i=0;i<io->out.num_addrs;i++) {
+ io->out.reply_addrs[i] = talloc_steal(io->out.reply_addrs,
+ packet->answers[0].rdata.netbios.addresses[i].ipaddr);
+ }
+ io->out.reply_addrs[i] = NULL;
+
+ 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 reply
+*/
+_PUBLIC_ 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
+*/
+_PUBLIC_ 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;
+ struct socket_address *dest;
+
+ 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;
+
+ dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
+ io->in.dest_addr, io->in.dest_port);
+ if (dest == NULL) goto failed;
+ req = nbt_name_request_send(nbtsock, dest, packet,
+ io->in.timeout, io->in.retries, false);
+ if (req == NULL) goto failed;
+
+ talloc_free(packet);
+ return req;
+
+failed:
+ talloc_free(packet);
+ return NULL;
+}
+
+/**
+ wait for a name status reply
+*/
+_PUBLIC_ 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].dest->addr);
+
+ if ((packet->operation & NBT_RCODE) != 0) {
+ status = nbt_rcode_to_ntstatus(packet->operation & NBT_RCODE);
+ talloc_free(req);
+ return status;
+ }
+
+ 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 reply
+*/
+_PUBLIC_ 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);
+}
+
+
generated by cgit (git 2.34.1) at 2024-12-26 21:25:36 +0000