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-rw-r--r--source4/libcli/nbt/libnbt.h20
-rw-r--r--source4/libcli/nbt/namequery.c16
-rw-r--r--source4/libcli/nbt/namerelease.c129
3 files changed, 160 insertions, 5 deletions
diff --git a/source4/libcli/nbt/libnbt.h b/source4/libcli/nbt/libnbt.h
index 63711490fe..5a53510ccf 100644
--- a/source4/libcli/nbt/libnbt.h
+++ b/source4/libcli/nbt/libnbt.h
@@ -138,7 +138,6 @@ struct nbt_name_query {
struct nbt_name name;
int16_t num_addrs;
const char **reply_addrs;
- uint8_t rcode;
} out;
};
@@ -154,7 +153,6 @@ struct nbt_name_status {
const char *reply_from;
struct nbt_name name;
struct nbt_rdata_status status;
- uint8_t rcode;
} out;
};
@@ -247,3 +245,21 @@ struct nbt_name_refresh_wins {
};
+/* a name release request */
+struct nbt_name_release {
+ struct {
+ struct nbt_name name;
+ const char *dest_addr;
+ const char *address;
+ uint16_t nb_flags;
+ BOOL broadcast;
+ int timeout; /* in seconds */
+ int retries;
+ } in;
+ struct {
+ const char *reply_from;
+ struct nbt_name name;
+ const char *reply_addr;
+ uint8_t rcode;
+ } out;
+};
diff --git a/source4/libcli/nbt/namequery.c b/source4/libcli/nbt/namequery.c
index 32fcad2052..5907c45b87 100644
--- a/source4/libcli/nbt/namequery.c
+++ b/source4/libcli/nbt/namequery.c
@@ -84,14 +84,19 @@ NTSTATUS nbt_name_query_recv(struct nbt_name_request *req,
packet = req->replies[0].packet;
io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].reply_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 NT_STATUS_INVALID_NETWORK_RESPONSE;
+ return status;
}
- io->out.rcode = packet->operation & NBT_RCODE;
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);
@@ -178,6 +183,12 @@ NTSTATUS nbt_name_status_recv(struct nbt_name_request *req,
packet = req->replies[0].packet;
io->out.reply_from = talloc_steal(mem_ctx, req->replies[0].reply_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) {
@@ -185,7 +196,6 @@ NTSTATUS nbt_name_status_recv(struct nbt_name_request *req,
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
- io->out.rcode = packet->operation & NBT_RCODE;
io->out.name = packet->answers[0].name;
talloc_steal(mem_ctx, io->out.name.name);
talloc_steal(mem_ctx, io->out.name.scope);
diff --git a/source4/libcli/nbt/namerelease.c b/source4/libcli/nbt/namerelease.c
new file mode 100644
index 0000000000..208c73d386
--- /dev/null
+++ b/source4/libcli/nbt/namerelease.c
@@ -0,0 +1,129 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ send out a name release request
+
+ 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"
+
+/*
+ send a nbt name release request
+*/
+struct nbt_name_request *nbt_name_release_send(struct nbt_name_socket *nbtsock,
+ struct nbt_name_release *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->arcount = 1;
+ packet->operation = NBT_OPCODE_RELEASE;
+ if (io->in.broadcast) {
+ packet->operation |= NBT_FLAG_BROADCAST;
+ }
+
+ 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;
+
+ packet->additional = talloc_array(packet, struct nbt_res_rec, 1);
+ if (packet->additional == NULL) goto failed;
+
+ packet->additional[0].name = io->in.name;
+ packet->additional[0].rr_type = NBT_QTYPE_NETBIOS;
+ packet->additional[0].rr_class = NBT_QCLASS_IP;
+ packet->additional[0].ttl = 0;
+ packet->additional[0].rdata.netbios.length = 6;
+ packet->additional[0].rdata.netbios.addresses = talloc_array(packet->additional,
+ struct nbt_rdata_address, 1);
+ if (packet->additional[0].rdata.netbios.addresses == NULL) goto failed;
+ packet->additional[0].rdata.netbios.addresses[0].nb_flags = io->in.nb_flags;
+ packet->additional[0].rdata.netbios.addresses[0].ipaddr =
+ talloc_strdup(packet->additional, io->in.address);
+
+ req = nbt_name_request_send(nbtsock, io->in.dest_addr, lp_nbt_port(), 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 release reply
+*/
+NTSTATUS nbt_name_release_recv(struct nbt_name_request *req,
+ TALLOC_CTX *mem_ctx, struct nbt_name_release *io)
+{
+ NTSTATUS status;
+ struct nbt_name_packet *packet;
+
+ 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.rcode = packet->operation & NBT_RCODE;
+ io->out.name = packet->answers[0].name;
+ if (packet->answers[0].rdata.netbios.length < 6) {
+ talloc_free(req);
+ return NT_STATUS_INVALID_NETWORK_RESPONSE;
+ }
+ io->out.reply_addr = talloc_steal(mem_ctx,
+ packet->answers[0].rdata.netbios.addresses[0].ipaddr);
+ talloc_steal(mem_ctx, io->out.name.name);
+ talloc_steal(mem_ctx, io->out.name.scope);
+
+ talloc_free(req);
+
+ return NT_STATUS_OK;
+}
+
+/*
+ synchronous name release request
+*/
+NTSTATUS nbt_name_release(struct nbt_name_socket *nbtsock,
+ TALLOC_CTX *mem_ctx, struct nbt_name_release *io)
+{
+ struct nbt_name_request *req = nbt_name_release_send(nbtsock, io);
+ return nbt_name_release_recv(req, mem_ctx, io);
+}
generated by cgit (git 2.34.1) at 2024-07-04 15:32:34 +0000