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wmi-1.3.16 from opsview.com

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This commit is contained in:
Are Casilla
2019-02-16 00:16:52 +01:00
parent 163fdd3d1b
commit 17b3af2911
2146 changed files with 678824 additions and 0 deletions
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Samba/source/libcli/nbt/libnbt.h
+270
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@@ -0,0 +1,270 @@
/*
Unix SMB/CIFS implementation.
a raw async NBT library
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.
*/
#ifndef __LIBNBT_H__
#define __LIBNBT_H__
#include "librpc/gen_ndr/nbt.h"
/*
possible states for pending requests
*/
enum nbt_request_state {NBT_REQUEST_SEND,
NBT_REQUEST_WAIT,
NBT_REQUEST_DONE,
NBT_REQUEST_TIMEOUT,
NBT_REQUEST_ERROR};
/*
a nbt name request
*/
struct nbt_name_request {
struct nbt_name_request *next, *prev;
enum nbt_request_state state;
NTSTATUS status;
/* the socket this was on */
struct nbt_name_socket *nbtsock;
/* where to send the request */
struct socket_address *dest;
/* timeout between retries */
int timeout;
/* how many retries to send on timeout */
int num_retries;
/* whether we have received a WACK */
BOOL received_wack;
/* the timeout event */
struct timed_event *te;
/* the name transaction id */
uint16_t name_trn_id;
/* is it a reply? */
BOOL is_reply;
/* the encoded request */
DATA_BLOB encoded;
/* shall we allow multiple replies? */
BOOL allow_multiple_replies;
unsigned int num_replies;
struct nbt_name_reply {
struct nbt_name_packet *packet;
struct socket_address *dest;
} *replies;
/* information on what to do on completion */
struct {
void (*fn)(struct nbt_name_request *);
void *private;
} async;
};
/*
context structure for operations on name queries
*/
struct nbt_name_socket {
struct socket_context *sock;
struct event_context *event_ctx;
/* a queue of requests pending to be sent */
struct nbt_name_request *send_queue;
/* the fd event */
struct fd_event *fde;
/* mapping from name_trn_id to pending event */
struct idr_context *idr;
/* how many requests are waiting for a reply */
uint16_t num_pending;
/* what to do with incoming request packets */
struct {
void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *,
struct socket_address *);
void *private;
} incoming;
/* what to do with unexpected replies */
struct {
void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *,
struct socket_address *);
void *private;
} unexpected;
};
/* a simple name query */
struct nbt_name_query {
struct {
struct nbt_name name;
const char *dest_addr;
BOOL broadcast;
BOOL wins_lookup;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
int16_t num_addrs;
const char **reply_addrs;
} out;
};
/* a simple name status query */
struct nbt_name_status {
struct {
struct nbt_name name;
const char *dest_addr;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
struct nbt_rdata_status status;
} out;
};
/* a name registration request */
struct nbt_name_register {
struct {
struct nbt_name name;
const char *dest_addr;
const char *address;
uint16_t nb_flags;
BOOL register_demand;
BOOL broadcast;
BOOL multi_homed;
uint32_t ttl;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
const char *reply_addr;
uint8_t rcode;
} out;
};
/* a send 3 times then demand name broadcast name registration */
struct nbt_name_register_bcast {
struct {
struct nbt_name name;
const char *dest_addr;
const char *address;
uint16_t nb_flags;
uint32_t ttl;
} in;
};
/* wins name register with multiple wins servers to try and multiple
addresses to register */
struct nbt_name_register_wins {
struct {
struct nbt_name name;
const char **wins_servers;
const char **addresses;
uint16_t nb_flags;
uint32_t ttl;
} in;
struct {
const char *wins_server;
uint8_t rcode;
} out;
};
/* a name refresh request */
struct nbt_name_refresh {
struct {
struct nbt_name name;
const char *dest_addr;
const char *address;
uint16_t nb_flags;
BOOL broadcast;
uint32_t ttl;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
const char *reply_addr;
uint8_t rcode;
} out;
};
/* wins name refresh with multiple wins servers to try and multiple
addresses to register */
struct nbt_name_refresh_wins {
struct {
struct nbt_name name;
const char **wins_servers;
const char **addresses;
uint16_t nb_flags;
uint32_t ttl;
} in;
struct {
const char *wins_server;
uint8_t rcode;
} out;
};
/* 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;
};
#include "libcli/nbt/nbt_proto.h"
#endif /* __LIBNBT_H__ */
Samba/source/libcli/nbt/namequery.c
+234
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@@ -0,0 +1,234 @@
/*
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 "lib/socket/socket.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, lp_nbt_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, lp_nbt_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);
}
Samba/source/libcli/nbt/namerefresh.c
+296
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@@ -0,0 +1,296 @@
/*
Unix SMB/CIFS implementation.
send out a name refresh 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"
#include "libcli/composite/composite.h"
#include "lib/socket/socket.h"
/*
send a nbt name refresh request
*/
struct nbt_name_request *nbt_name_refresh_send(struct nbt_name_socket *nbtsock,
struct nbt_name_refresh *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->arcount = 1;
packet->operation = NBT_OPCODE_REFRESH;
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 = io->in.ttl;
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);
dest = socket_address_from_strings(nbtsock, nbtsock->sock->backend_name,
io->in.dest_addr, lp_nbt_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 refresh reply
*/
NTSTATUS nbt_name_refresh_recv(struct nbt_name_request *req,
TALLOC_CTX *mem_ctx, struct nbt_name_refresh *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].dest->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 refresh request
*/
NTSTATUS nbt_name_refresh(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx, struct nbt_name_refresh *io)
{
struct nbt_name_request *req = nbt_name_refresh_send(nbtsock, io);
return nbt_name_refresh_recv(req, mem_ctx, io);
}
/*
a wins name refresh with multiple WINS servers and multiple
addresses to refresh. Try each WINS server in turn, until we get a
reply for each address
*/
struct refresh_wins_state {
struct nbt_name_socket *nbtsock;
struct nbt_name_refresh *io;
const char **wins_servers;
const char **addresses;
int address_idx;
struct nbt_name_request *req;
};
/*
state handler for WINS multi-homed multi-server name refresh
*/
static void name_refresh_wins_handler(struct nbt_name_request *req)
{
struct composite_context *c = talloc_get_type(req->async.private,
struct composite_context);
struct refresh_wins_state *state = talloc_get_type(c->private_data,
struct refresh_wins_state);
NTSTATUS status;
status = nbt_name_refresh_recv(state->req, state, state->io);
if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
/* the refresh timed out - try the next WINS server */
state->wins_servers++;
state->address_idx = 0;
if (state->wins_servers[0] == NULL) {
c->state = COMPOSITE_STATE_ERROR;
c->status = status;
goto done;
}
state->io->in.dest_addr = state->wins_servers[0];
state->io->in.address = state->addresses[0];
state->req = nbt_name_refresh_send(state->nbtsock, state->io);
if (state->req == NULL) {
c->state = COMPOSITE_STATE_ERROR;
c->status = NT_STATUS_NO_MEMORY;
} else {
state->req->async.fn = name_refresh_wins_handler;
state->req->async.private = c;
}
} else if (!NT_STATUS_IS_OK(status)) {
c->state = COMPOSITE_STATE_ERROR;
c->status = status;
} else {
if (state->io->out.rcode == 0 &&
state->addresses[state->address_idx+1] != NULL) {
/* refresh our next address */
state->io->in.address = state->addresses[++(state->address_idx)];
state->req = nbt_name_refresh_send(state->nbtsock, state->io);
if (state->req == NULL) {
c->state = COMPOSITE_STATE_ERROR;
c->status = NT_STATUS_NO_MEMORY;
} else {
state->req->async.fn = name_refresh_wins_handler;
state->req->async.private = c;
}
} else {
c->state = COMPOSITE_STATE_DONE;
c->status = NT_STATUS_OK;
}
}
done:
if (c->state >= COMPOSITE_STATE_DONE &&
c->async.fn) {
c->async.fn(c);
}
}
/*
the async send call for a multi-server WINS refresh
*/
struct composite_context *nbt_name_refresh_wins_send(struct nbt_name_socket *nbtsock,
struct nbt_name_refresh_wins *io)
{
struct composite_context *c;
struct refresh_wins_state *state;
c = talloc_zero(nbtsock, struct composite_context);
if (c == NULL) goto failed;
state = talloc(c, struct refresh_wins_state);
if (state == NULL) goto failed;
state->io = talloc(state, struct nbt_name_refresh);
if (state->io == NULL) goto failed;
state->wins_servers = str_list_copy(state, io->in.wins_servers);
if (state->wins_servers == NULL ||
state->wins_servers[0] == NULL) goto failed;
state->addresses = str_list_copy(state, io->in.addresses);
if (state->addresses == NULL ||
state->addresses[0] == NULL) goto failed;
state->io->in.name = io->in.name;
state->io->in.dest_addr = state->wins_servers[0];
state->io->in.address = io->in.addresses[0];
state->io->in.nb_flags = io->in.nb_flags;
state->io->in.broadcast = False;
state->io->in.ttl = io->in.ttl;
state->io->in.timeout = 2;
state->io->in.retries = 2;
state->nbtsock = nbtsock;
state->address_idx = 0;
state->req = nbt_name_refresh_send(nbtsock, state->io);
if (state->req == NULL) goto failed;
state->req->async.fn = name_refresh_wins_handler;
state->req->async.private = c;
c->private_data = state;
c->state = COMPOSITE_STATE_IN_PROGRESS;
c->event_ctx = nbtsock->event_ctx;
return c;
failed:
talloc_free(c);
return NULL;
}
/*
multi-homed WINS name refresh - recv side
*/
NTSTATUS nbt_name_refresh_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct nbt_name_refresh_wins *io)
{
NTSTATUS status;
status = composite_wait(c);
if (NT_STATUS_IS_OK(status)) {
struct refresh_wins_state *state =
talloc_get_type(c->private_data, struct refresh_wins_state);
io->out.wins_server = talloc_steal(mem_ctx, state->wins_servers[0]);
io->out.rcode = state->io->out.rcode;
}
talloc_free(c);
return status;
}
/*
multi-homed WINS refresh - sync interface
*/
NTSTATUS nbt_name_refresh_wins(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx,
struct nbt_name_refresh_wins *io)
{
struct composite_context *c = nbt_name_refresh_wins_send(nbtsock, io);
return nbt_name_refresh_wins_recv(c, mem_ctx, io);
}
Samba/source/libcli/nbt/nameregister.c
+436
View File
@@ -0,0 +1,436 @@
/*
Unix SMB/CIFS implementation.
send out a name registration 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"
#include "libcli/composite/composite.h"
#include "lib/socket/socket.h"
#include "librpc/gen_ndr/ndr_nbt.h"
/*
send a nbt name registration request
*/
struct nbt_name_request *nbt_name_register_send(struct nbt_name_socket *nbtsock,
struct nbt_name_register *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->arcount = 1;
if (io->in.multi_homed) {
packet->operation = NBT_OPCODE_MULTI_HOME_REG;
} else {
packet->operation = NBT_OPCODE_REGISTER;
}
if (io->in.broadcast) {
packet->operation |= NBT_FLAG_BROADCAST;
}
if (io->in.register_demand) {
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;
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 = io->in.ttl;
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);
if (packet->additional[0].rdata.netbios.addresses[0].ipaddr == NULL) goto failed;
dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
io->in.dest_addr, lp_nbt_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 registration reply
*/
NTSTATUS nbt_name_register_recv(struct nbt_name_request *req,
TALLOC_CTX *mem_ctx, struct nbt_name_register *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].dest->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 registration request
*/
NTSTATUS nbt_name_register(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx, struct nbt_name_register *io)
{
struct nbt_name_request *req = nbt_name_register_send(nbtsock, io);
return nbt_name_register_recv(req, mem_ctx, io);
}
/*
a 4 step broadcast registration. 3 lots of name registration requests, followed by
a name registration demand
*/
struct register_bcast_state {
struct nbt_name_socket *nbtsock;
struct nbt_name_register *io;
struct nbt_name_request *req;
};
/*
state handler for 4 stage name registration
*/
static void name_register_bcast_handler(struct nbt_name_request *req)
{
struct composite_context *c = talloc_get_type(req->async.private, struct composite_context);
struct register_bcast_state *state = talloc_get_type(c->private_data, struct register_bcast_state);
NTSTATUS status;
status = nbt_name_register_recv(state->req, state, state->io);
if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
if (state->io->in.register_demand == True) {
/* all done */
c->state = COMPOSITE_STATE_DONE;
c->status = NT_STATUS_OK;
goto done;
}
/* the registration timed out - good, send the demand */
state->io->in.register_demand = True;
state->io->in.retries = 0;
state->req = nbt_name_register_send(state->nbtsock, state->io);
if (state->req == NULL) {
c->state = COMPOSITE_STATE_ERROR;
c->status = NT_STATUS_NO_MEMORY;
} else {
state->req->async.fn = name_register_bcast_handler;
state->req->async.private = c;
}
} else if (!NT_STATUS_IS_OK(status)) {
c->state = COMPOSITE_STATE_ERROR;
c->status = status;
} else {
c->state = COMPOSITE_STATE_ERROR;
c->status = NT_STATUS_CONFLICTING_ADDRESSES;
DEBUG(3,("Name registration conflict from %s for %s with ip %s - rcode %d\n",
state->io->out.reply_from,
nbt_name_string(state, &state->io->out.name),
state->io->out.reply_addr,
state->io->out.rcode));
}
done:
if (c->state >= COMPOSITE_STATE_DONE &&
c->async.fn) {
c->async.fn(c);
}
}
/*
the async send call for a 4 stage name registration
*/
struct composite_context *nbt_name_register_bcast_send(struct nbt_name_socket *nbtsock,
struct nbt_name_register_bcast *io)
{
struct composite_context *c;
struct register_bcast_state *state;
c = talloc_zero(nbtsock, struct composite_context);
if (c == NULL) goto failed;
state = talloc(c, struct register_bcast_state);
if (state == NULL) goto failed;
state->io = talloc(state, struct nbt_name_register);
if (state->io == NULL) goto failed;
state->io->in.name = io->in.name;
state->io->in.dest_addr = io->in.dest_addr;
state->io->in.address = io->in.address;
state->io->in.nb_flags = io->in.nb_flags;
state->io->in.register_demand = False;
state->io->in.broadcast = True;
state->io->in.multi_homed = False;
state->io->in.ttl = io->in.ttl;
state->io->in.timeout = 1;
state->io->in.retries = 2;
state->nbtsock = nbtsock;
state->req = nbt_name_register_send(nbtsock, state->io);
if (state->req == NULL) goto failed;
state->req->async.fn = name_register_bcast_handler;
state->req->async.private = c;
c->private_data = state;
c->state = COMPOSITE_STATE_IN_PROGRESS;
c->event_ctx = nbtsock->event_ctx;
return c;
failed:
talloc_free(c);
return NULL;
}
/*
broadcast 4 part name register - recv
*/
NTSTATUS nbt_name_register_bcast_recv(struct composite_context *c)
{
NTSTATUS status;
status = composite_wait(c);
talloc_free(c);
return status;
}
/*
broadcast 4 part name register - sync interface
*/
NTSTATUS nbt_name_register_bcast(struct nbt_name_socket *nbtsock,
struct nbt_name_register_bcast *io)
{
struct composite_context *c = nbt_name_register_bcast_send(nbtsock, io);
return nbt_name_register_bcast_recv(c);
}
/*
a wins name register with multiple WINS servers and multiple
addresses to register. Try each WINS server in turn, until we get a
reply for each address
*/
struct register_wins_state {
struct nbt_name_socket *nbtsock;
struct nbt_name_register *io;
const char **wins_servers;
const char **addresses;
int address_idx;
struct nbt_name_request *req;
};
/*
state handler for WINS multi-homed multi-server name register
*/
static void name_register_wins_handler(struct nbt_name_request *req)
{
struct composite_context *c = talloc_get_type(req->async.private,
struct composite_context);
struct register_wins_state *state = talloc_get_type(c->private_data,
struct register_wins_state);
NTSTATUS status;
status = nbt_name_register_recv(state->req, state, state->io);
if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
/* the register timed out - try the next WINS server */
state->wins_servers++;
state->address_idx = 0;
if (state->wins_servers[0] == NULL) {
c->state = COMPOSITE_STATE_ERROR;
c->status = status;
goto done;
}
state->io->in.dest_addr = state->wins_servers[0];
state->io->in.address = state->addresses[0];
state->req = nbt_name_register_send(state->nbtsock, state->io);
if (state->req == NULL) {
c->state = COMPOSITE_STATE_ERROR;
c->status = NT_STATUS_NO_MEMORY;
} else {
state->req->async.fn = name_register_wins_handler;
state->req->async.private = c;
}
} else if (!NT_STATUS_IS_OK(status)) {
c->state = COMPOSITE_STATE_ERROR;
c->status = status;
} else {
if (state->io->out.rcode == 0 &&
state->addresses[state->address_idx+1] != NULL) {
/* register our next address */
state->io->in.address = state->addresses[++(state->address_idx)];
state->req = nbt_name_register_send(state->nbtsock, state->io);
if (state->req == NULL) {
c->state = COMPOSITE_STATE_ERROR;
c->status = NT_STATUS_NO_MEMORY;
} else {
state->req->async.fn = name_register_wins_handler;
state->req->async.private = c;
}
} else {
c->state = COMPOSITE_STATE_DONE;
c->status = NT_STATUS_OK;
}
}
done:
if (c->state >= COMPOSITE_STATE_DONE &&
c->async.fn) {
c->async.fn(c);
}
}
/*
the async send call for a multi-server WINS register
*/
struct composite_context *nbt_name_register_wins_send(struct nbt_name_socket *nbtsock,
struct nbt_name_register_wins *io)
{
struct composite_context *c;
struct register_wins_state *state;
c = talloc_zero(nbtsock, struct composite_context);
if (c == NULL) goto failed;
state = talloc(c, struct register_wins_state);
if (state == NULL) goto failed;
state->io = talloc(state, struct nbt_name_register);
if (state->io == NULL) goto failed;
state->wins_servers = str_list_copy(state, io->in.wins_servers);
if (state->wins_servers == NULL ||
state->wins_servers[0] == NULL) goto failed;
state->addresses = str_list_copy(state, io->in.addresses);
if (state->addresses == NULL ||
state->addresses[0] == NULL) goto failed;
state->io->in.name = io->in.name;
state->io->in.dest_addr = state->wins_servers[0];
state->io->in.address = io->in.addresses[0];
state->io->in.nb_flags = io->in.nb_flags;
state->io->in.broadcast = False;
state->io->in.register_demand = False;
state->io->in.multi_homed = (io->in.nb_flags & NBT_NM_GROUP)?False:True;
state->io->in.ttl = io->in.ttl;
state->io->in.timeout = 3;
state->io->in.retries = 2;
state->nbtsock = nbtsock;
state->address_idx = 0;
state->req = nbt_name_register_send(nbtsock, state->io);
if (state->req == NULL) goto failed;
state->req->async.fn = name_register_wins_handler;
state->req->async.private = c;
c->private_data = state;
c->state = COMPOSITE_STATE_IN_PROGRESS;
c->event_ctx = nbtsock->event_ctx;
return c;
failed:
talloc_free(c);
return NULL;
}
/*
multi-homed WINS name register - recv side
*/
NTSTATUS nbt_name_register_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct nbt_name_register_wins *io)
{
NTSTATUS status;
status = composite_wait(c);
if (NT_STATUS_IS_OK(status)) {
struct register_wins_state *state =
talloc_get_type(c->private_data, struct register_wins_state);
io->out.wins_server = talloc_steal(mem_ctx, state->wins_servers[0]);
io->out.rcode = state->io->out.rcode;
}
talloc_free(c);
return status;
}
/*
multi-homed WINS register - sync interface
*/
NTSTATUS nbt_name_register_wins(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx,
struct nbt_name_register_wins *io)
{
struct composite_context *c = nbt_name_register_wins_send(nbtsock, io);
return nbt_name_register_wins_recv(c, mem_ctx, io);
}
Samba/source/libcli/nbt/namerelease.c
+134
View File
@@ -0,0 +1,134 @@
/*
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"
#include "lib/socket/socket.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;
struct socket_address *dest;
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);
dest = socket_address_from_strings(packet, nbtsock->sock->backend_name,
io->in.dest_addr, lp_nbt_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 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].dest->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);
}
Samba/source/libcli/nbt/nbtname.c
+595
View File
@@ -0,0 +1,595 @@
/*
Unix SMB/CIFS implementation.
manipulate nbt name structures
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.
*/
/*
see rfc1002 for the detailed format of compressed names
*/
#include "includes.h"
#include "librpc/gen_ndr/ndr_nbt.h"
#include "librpc/gen_ndr/ndr_misc.h"
#include "system/locale.h"
/* don't allow an unlimited number of name components */
#define MAX_COMPONENTS 10
/**
print a nbt string
*/
_PUBLIC_ void ndr_print_nbt_string(struct ndr_print *ndr, const char *name, const char *s)
{
ndr_print_string(ndr, name, s);
}
/*
pull one component of a nbt_string
*/
static NTSTATUS ndr_pull_component(struct ndr_pull *ndr, uint8_t **component,
uint32_t *offset, uint32_t *max_offset)
{
uint8_t len;
uint_t loops = 0;
while (loops < 5) {
if (*offset >= ndr->data_size) {
return NT_STATUS_BAD_NETWORK_NAME;
}
len = ndr->data[*offset];
if (len == 0) {
*offset += 1;
*max_offset = MAX(*max_offset, *offset);
*component = NULL;
return NT_STATUS_OK;
}
if ((len & 0xC0) == 0xC0) {
/* its a label pointer */
if (1 + *offset >= ndr->data_size) {
return NT_STATUS_BAD_NETWORK_NAME;
}
*max_offset = MAX(*max_offset, *offset + 2);
*offset = ((len&0x3F)<<8) | ndr->data[1 + *offset];
*max_offset = MAX(*max_offset, *offset);
loops++;
continue;
}
if ((len & 0xC0) != 0) {
/* its a reserved length field */
return NT_STATUS_BAD_NETWORK_NAME;
}
if (*offset + len + 2 > ndr->data_size) {
return NT_STATUS_BAD_NETWORK_NAME;
}
*component = (uint8_t*)talloc_strndup(ndr, (const char *)&ndr->data[1 + *offset], len);
NT_STATUS_HAVE_NO_MEMORY(*component);
*offset += len + 1;
*max_offset = MAX(*max_offset, *offset);
return NT_STATUS_OK;
}
/* too many pointers */
return NT_STATUS_BAD_NETWORK_NAME;
}
/**
pull a nbt_string from the wire
*/
_PUBLIC_ NTSTATUS ndr_pull_nbt_string(struct ndr_pull *ndr, int ndr_flags, const char **s)
{
NTSTATUS status;
uint32_t offset = ndr->offset;
uint32_t max_offset = offset;
unsigned num_components;
char *name;
if (!(ndr_flags & NDR_SCALARS)) {
return NT_STATUS_OK;
}
name = NULL;
/* break up name into a list of components */
for (num_components=0;num_components<MAX_COMPONENTS;num_components++) {
uint8_t *component;
status = ndr_pull_component(ndr, &component, &offset, &max_offset);
NT_STATUS_NOT_OK_RETURN(status);
if (component == NULL) break;
if (name) {
name = talloc_asprintf_append(name, ".%s", component);
NT_STATUS_HAVE_NO_MEMORY(name);
} else {
name = (char *)component;
}
}
if (num_components == MAX_COMPONENTS) {
return NT_STATUS_BAD_NETWORK_NAME;
}
if (num_components == 0) {
name = talloc_strdup(ndr, "");
NT_STATUS_HAVE_NO_MEMORY(name);
}
(*s) = name;
ndr->offset = max_offset;
return NT_STATUS_OK;
}
/**
push a nbt string to the wire
*/
_PUBLIC_ NTSTATUS ndr_push_nbt_string(struct ndr_push *ndr, int ndr_flags, const char *s)
{
if (!(ndr_flags & NDR_SCALARS)) {
return NT_STATUS_OK;
}
while (s && *s) {
NTSTATUS status;
char *compname;
size_t complen;
uint32_t offset;
/* see if we have pushed the remaing string allready,
* if so we use a label pointer to this string
*/
status = ndr_token_retrieve_cmp_fn(&ndr->nbt_string_list, s, &offset, (comparison_fn_t)strcmp, False);
if (NT_STATUS_IS_OK(status)) {
uint8_t b[2];
if (offset > 0x3FFF) {
return ndr_push_error(ndr, NDR_ERR_STRING,
"offset for nbt string label pointer %u[%08X] > 0x00003FFF",
offset, offset);
}
b[0] = 0xC0 | (offset>>8);
b[1] = (offset & 0xFF);
return ndr_push_bytes(ndr, b, 2);
}
complen = strcspn(s, ".");
/* we need to make sure the length fits into 6 bytes */
if (complen >= 0x3F) {
return ndr_push_error(ndr, NDR_ERR_STRING,
"component length %u[%08X] > 0x00003F",
(unsigned)complen, (unsigned)complen);
}
compname = talloc_asprintf(ndr, "%c%*.*s",
(unsigned char)complen,
(unsigned char)complen,
(unsigned char)complen, s);
NT_STATUS_HAVE_NO_MEMORY(compname);
/* remember the current componemt + the rest of the string
* so it can be reused later
*/
NDR_CHECK(ndr_token_store(ndr, &ndr->nbt_string_list, s, ndr->offset));
/* push just this component into the blob */
NDR_CHECK(ndr_push_bytes(ndr, (const uint8_t *)compname, complen+1));
talloc_free(compname);
s += complen;
if (*s == '.') s++;
}
/* if we reach the end of the string and have pushed the last component
* without using a label pointer, we need to terminate the string
*/
return ndr_push_bytes(ndr, (const uint8_t *)"", 1);
}
/*
decompress a 'compressed' name component
*/
static NTSTATUS decompress_name(char *name, enum nbt_name_type *type)
{
int i;
for (i=0;name[2*i];i++) {
uint8_t c1 = name[2*i];
uint8_t c2 = name[1+(2*i)];
if (c1 < 'A' || c1 > 'P' ||
c2 < 'A' || c2 > 'P') {
return NT_STATUS_BAD_NETWORK_NAME;
}
name[i] = ((c1-'A')<<4) | (c2-'A');
}
name[i] = 0;
if (i == 16) {
*type = (enum nbt_name_type)(name[15]);
name[15] = 0;
i--;
} else {
*type = NBT_NAME_CLIENT;
}
/* trim trailing spaces */
for (;i>0 && name[i-1]==' ';i--) {
name[i-1] = 0;
}
return NT_STATUS_OK;
}
/*
compress a name component
*/
static uint8_t *compress_name(TALLOC_CTX *mem_ctx,
const uint8_t *name, enum nbt_name_type type)
{
uint8_t *cname;
int i;
uint8_t pad_char;
if (strlen((const char *)name) > 15) {
return NULL;
}
cname = talloc_array(mem_ctx, uint8_t, 33);
if (cname == NULL) return NULL;
for (i=0;name[i];i++) {
cname[2*i] = 'A' + (name[i]>>4);
cname[1+2*i] = 'A' + (name[i]&0xF);
}
if (strcmp((const char *)name, "*") == 0) {
pad_char = 0;
} else {
pad_char = ' ';
}
for (;i<15;i++) {
cname[2*i] = 'A' + (pad_char>>4);
cname[1+2*i] = 'A' + (pad_char&0xF);
}
pad_char = type;
cname[2*i] = 'A' + (pad_char>>4);
cname[1+2*i] = 'A' + (pad_char&0xF);
cname[32] = 0;
return cname;
}
/**
pull a nbt name from the wire
*/
_PUBLIC_ NTSTATUS ndr_pull_nbt_name(struct ndr_pull *ndr, int ndr_flags, struct nbt_name *r)
{
NTSTATUS status;
uint8_t *scope;
char *cname;
const char *s;
if (!(ndr_flags & NDR_SCALARS)) {
return NT_STATUS_OK;
}
status = ndr_pull_nbt_string(ndr, ndr_flags, &s);
NT_STATUS_NOT_OK_RETURN(status);
scope = (uint8_t *)strchr(s, '.');
if (scope) {
*scope = 0;
r->scope = talloc_strdup(ndr->current_mem_ctx, (const char *)&scope[1]);
NT_STATUS_HAVE_NO_MEMORY(r->scope);
} else {
r->scope = NULL;
}
cname = discard_const_p(char, s);
/* the first component is limited to 16 bytes in the DOS charset,
which is 32 in the 'compressed' form */
if (strlen(cname) > 32) {
return NT_STATUS_BAD_NETWORK_NAME;
}
/* decompress the first component */
status = decompress_name(cname, &r->type);
NT_STATUS_NOT_OK_RETURN(status);
r->name = talloc_strdup(ndr->current_mem_ctx, cname);
NT_STATUS_HAVE_NO_MEMORY(r->name);
talloc_free(cname);
return NT_STATUS_OK;
}
/**
push a nbt name to the wire
*/
_PUBLIC_ NTSTATUS ndr_push_nbt_name(struct ndr_push *ndr, int ndr_flags, const struct nbt_name *r)
{
uint8_t *cname, *fullname;
NTSTATUS status;
if (!(ndr_flags & NDR_SCALARS)) {
return NT_STATUS_OK;
}
cname = compress_name(ndr, (const uint8_t *)r->name, r->type);
NT_STATUS_HAVE_NO_MEMORY(cname);
if (r->scope) {
fullname = (uint8_t *)talloc_asprintf(ndr, "%s.%s", cname, r->scope);
NT_STATUS_HAVE_NO_MEMORY(fullname);
talloc_free(cname);
} else {
fullname = cname;
}
status = ndr_push_nbt_string(ndr, ndr_flags, (const char *)fullname);
return status;
}
/**
copy a nbt name structure
*/
_PUBLIC_ NTSTATUS nbt_name_dup(TALLOC_CTX *mem_ctx, struct nbt_name *name, struct nbt_name *newname)
{
*newname = *name;
newname->name = talloc_strdup(mem_ctx, newname->name);
NT_STATUS_HAVE_NO_MEMORY(newname->name);
newname->scope = talloc_strdup(mem_ctx, newname->scope);
if (name->scope) {
NT_STATUS_HAVE_NO_MEMORY(newname->scope);
}
return NT_STATUS_OK;
}
/**
push a nbt name into a blob
*/
_PUBLIC_ NTSTATUS nbt_name_to_blob(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, struct nbt_name *name)
{
return ndr_push_struct_blob(blob, mem_ctx, name,
(ndr_push_flags_fn_t)ndr_push_nbt_name);
}
/**
pull a nbt name from a blob
*/
_PUBLIC_ NTSTATUS nbt_name_from_blob(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, struct nbt_name *name)
{
return ndr_pull_struct_blob(blob, mem_ctx, name,
(ndr_pull_flags_fn_t)ndr_pull_nbt_name);
}
/**
choose a name to use when calling a server in a NBT session request.
we use heuristics to see if the name we have been given is a IP
address, or a too-long name. If it is then use *SMBSERVER, or a
truncated name
*/
_PUBLIC_ void nbt_choose_called_name(TALLOC_CTX *mem_ctx,
struct nbt_name *n, const char *name, int type)
{
n->scope = NULL;
n->type = type;
if (is_ipaddress(name)) {
n->name = "*SMBSERVER";
return;
}
if (strlen(name) > 15) {
const char *p = strchr(name, '.');
char *s;
if (p - name > 15) {
n->name = "*SMBSERVER";
return;
}
s = talloc_strndup(mem_ctx, name, PTR_DIFF(p, name));
n->name = strupper_talloc(mem_ctx, s);
return;
}
n->name = strupper_talloc(mem_ctx, name);
}
/*
escape a string into a form containing only a small set of characters,
the rest is hex encoded. This is similar to URL encoding
*/
static const char *nbt_hex_encode(TALLOC_CTX *mem_ctx, const char *s)
{
int i, len;
char *ret;
const char *valid_chars = "_-.$@ ";
#define NBT_CHAR_ALLOW(c) (isalnum((unsigned char)c) || strchr(valid_chars, c))
for (len=i=0;s[i];i++,len++) {
if (!NBT_CHAR_ALLOW(s[i])) {
len += 2;
}
}
ret = talloc_array(mem_ctx, char, len+1);
if (ret == NULL) return NULL;
for (len=i=0;s[i];i++) {
if (NBT_CHAR_ALLOW(s[i])) {
ret[len++] = s[i];
} else {
snprintf(&ret[len], 4, "%%%02x", (unsigned char)s[i]);
len += 3;
}
}
ret[len] = 0;
return ret;
}
/**
form a string for a NBT name
*/
_PUBLIC_ char *nbt_name_string(TALLOC_CTX *mem_ctx, const struct nbt_name *name)
{
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
char *ret;
if (name->scope) {
ret = talloc_asprintf(mem_ctx, "%s<%02x>-%s",
nbt_hex_encode(tmp_ctx, name->name),
name->type,
nbt_hex_encode(tmp_ctx, name->scope));
} else {
ret = talloc_asprintf(mem_ctx, "%s<%02x>",
nbt_hex_encode(tmp_ctx, name->name),
name->type);
}
talloc_free(tmp_ctx);
return ret;
}
/**
pull a nbt name, WINS Replication uses another on wire format for nbt name
*/
_PUBLIC_ NTSTATUS ndr_pull_wrepl_nbt_name(struct ndr_pull *ndr, int ndr_flags, struct nbt_name **_r)
{
struct nbt_name *r;
uint8_t *namebuf;
uint32_t namebuf_len;
if (!(ndr_flags & NDR_SCALARS)) {
return NT_STATUS_OK;
}
NDR_CHECK(ndr_pull_align(ndr, 4));
NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &namebuf_len));
if (namebuf_len < 1 || namebuf_len > 255) {
return ndr_pull_error(ndr, NDR_ERR_ALLOC, "value out of range");
}
NDR_PULL_ALLOC_N(ndr, namebuf, namebuf_len);
NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, namebuf, namebuf_len));
NDR_PULL_ALLOC(ndr, r);
/* oh wow, what a nasty bug in windows ... */
if (namebuf[0] == 0x1b && namebuf_len >= 16) {
namebuf[0] = namebuf[15];
namebuf[15] = 0x1b;
}
if (namebuf_len < 17) {
r->type = 0x00;
r->name = talloc_strndup(r, (char *)namebuf, namebuf_len);
if (!r->name) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "out of memory");
r->scope= NULL;
talloc_free(namebuf);
*_r = r;
return NT_STATUS_OK;
}
r->type = namebuf[15];
namebuf[15] = '\0';
trim_string((char *)namebuf, NULL, " ");
r->name = talloc_strdup(r, (char *)namebuf);
if (!r->name) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "out of memory");
if (namebuf_len > 18) {
r->scope = talloc_strndup(r, (char *)(namebuf+17), namebuf_len-17);
if (!r->scope) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "out of memory");
} else {
r->scope = NULL;
}
talloc_free(namebuf);
*_r = r;
return NT_STATUS_OK;
}
/**
push a nbt name, WINS Replication uses another on wire format for nbt name
*/
_PUBLIC_ NTSTATUS ndr_push_wrepl_nbt_name(struct ndr_push *ndr, int ndr_flags, const struct nbt_name *r)
{
uint8_t *namebuf;
uint32_t namebuf_len;
uint32_t name_len;
uint32_t scope_len = 0;
if (r == NULL) return NT_STATUS_INVALID_PARAMETER_MIX;
if (!(ndr_flags & NDR_SCALARS)) {
return NT_STATUS_OK;
}
name_len = strlen(r->name);
if (name_len > 15) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
if (r->scope) {
scope_len = strlen(r->scope);
}
if (scope_len > 238) {
return NT_STATUS_INVALID_PARAMETER_MIX;
}
namebuf = (uint8_t *)talloc_asprintf(ndr, "%-15s%c%s",
r->name, 'X',
(r->scope?r->scope:""));
if (!namebuf) return ndr_push_error(ndr, NDR_ERR_ALLOC, "out of memory");
namebuf_len = strlen((char *)namebuf) + 1;
/*
* we need to set the type here, and use a place-holder in the talloc_asprintf()
* as the type can be 0x00, and then the namebuf_len = strlen(namebuf); would give wrong results
*/
namebuf[15] = r->type;
/* oh wow, what a nasty bug in windows ... */
if (r->type == 0x1b) {
namebuf[15] = namebuf[0];
namebuf[0] = 0x1b;
}
NDR_CHECK(ndr_push_align(ndr, 4));
NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, namebuf_len));
NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, namebuf, namebuf_len));
talloc_free(namebuf);
return NT_STATUS_OK;
}
_PUBLIC_ void ndr_print_wrepl_nbt_name(struct ndr_print *ndr, const char *name, const struct nbt_name *r)
{
char *s = nbt_name_string(ndr, r);
ndr_print_string(ndr, name, s);
talloc_free(s);
}
Samba/source/libcli/nbt/nbtsocket.c
+526
View File
@@ -0,0 +1,526 @@
/*
Unix SMB/CIFS implementation.
low level socket handling for nbt 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 "lib/events/events.h"
#include "lib/util/dlinklist.h"
#include "libcli/nbt/libnbt.h"
#include "lib/socket/socket.h"
#include "librpc/gen_ndr/ndr_nbt.h"
#define NBT_MAX_REPLIES 1000
/*
destroy a pending request
*/
static int nbt_name_request_destructor(struct nbt_name_request *req)
{
if (req->state == NBT_REQUEST_SEND) {
DLIST_REMOVE(req->nbtsock->send_queue, req);
}
if (req->state == NBT_REQUEST_WAIT) {
req->nbtsock->num_pending--;
}
if (req->name_trn_id != 0 && !req->is_reply) {
idr_remove(req->nbtsock->idr, req->name_trn_id);
req->name_trn_id = 0;
}
if (req->te) {
req->te = NULL;
}
if (req->nbtsock->send_queue == NULL) {
EVENT_FD_NOT_WRITEABLE(req->nbtsock->fde);
}
if (req->nbtsock->num_pending == 0 &&
req->nbtsock->incoming.handler == NULL) {
EVENT_FD_NOT_READABLE(req->nbtsock->fde);
}
/* once this has been called for this req, don't call again */
talloc_set_destructor(req, NULL);
return 0;
}
/*
handle send events on a nbt name socket
*/
static void nbt_name_socket_send(struct nbt_name_socket *nbtsock)
{
struct nbt_name_request *req = nbtsock->send_queue;
TALLOC_CTX *tmp_ctx = talloc_new(nbtsock);
NTSTATUS status;
while ((req = nbtsock->send_queue)) {
size_t len;
len = req->encoded.length;
status = socket_sendto(nbtsock->sock, &req->encoded, &len,
req->dest);
if (NT_STATUS_IS_ERR(status)) goto failed;
if (!NT_STATUS_IS_OK(status)) {
talloc_free(tmp_ctx);
return;
}
DLIST_REMOVE(nbtsock->send_queue, req);
req->state = NBT_REQUEST_WAIT;
if (req->is_reply) {
talloc_free(req);
} else {
EVENT_FD_READABLE(nbtsock->fde);
nbtsock->num_pending++;
}
}
EVENT_FD_NOT_WRITEABLE(nbtsock->fde);
talloc_free(tmp_ctx);
return;
failed:
DLIST_REMOVE(nbtsock->send_queue, req);
nbt_name_request_destructor(req);
req->status = status;
req->state = NBT_REQUEST_ERROR;
talloc_free(tmp_ctx);
if (req->async.fn) {
req->async.fn(req);
}
return;
}
/*
handle a request timeout
*/
static void nbt_name_socket_timeout(struct event_context *ev, struct timed_event *te,
struct timeval t, void *private)
{
struct nbt_name_request *req = talloc_get_type(private,
struct nbt_name_request);
if (req->num_retries != 0) {
req->num_retries--;
req->te = event_add_timed(req->nbtsock->event_ctx, req,
timeval_add(&t, req->timeout, 0),
nbt_name_socket_timeout, req);
if (req->state != NBT_REQUEST_SEND) {
req->state = NBT_REQUEST_SEND;
DLIST_ADD_END(req->nbtsock->send_queue, req,
struct nbt_name_request *);
}
EVENT_FD_WRITEABLE(req->nbtsock->fde);
return;
}
nbt_name_request_destructor(req);
if (req->num_replies == 0) {
req->state = NBT_REQUEST_TIMEOUT;
req->status = NT_STATUS_IO_TIMEOUT;
} else {
req->state = NBT_REQUEST_DONE;
req->status = NT_STATUS_OK;
}
if (req->async.fn) {
req->async.fn(req);
}
}
/*
handle recv events on a nbt name socket
*/
static void nbt_name_socket_recv(struct nbt_name_socket *nbtsock)
{
TALLOC_CTX *tmp_ctx = talloc_new(nbtsock);
NTSTATUS status;
struct socket_address *src;
DATA_BLOB blob;
size_t nread, dsize;
struct nbt_name_packet *packet;
struct nbt_name_request *req;
status = socket_pending(nbtsock->sock, &dsize);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(tmp_ctx);
return;
}
blob = data_blob_talloc(tmp_ctx, NULL, dsize);
if (blob.data == NULL) {
talloc_free(tmp_ctx);
return;
}
status = socket_recvfrom(nbtsock->sock, blob.data, blob.length, &nread,
tmp_ctx, &src);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(tmp_ctx);
return;
}
packet = talloc(tmp_ctx, struct nbt_name_packet);
if (packet == NULL) {
talloc_free(tmp_ctx);
return;
}
/* parse the request */
status = ndr_pull_struct_blob(&blob, packet, packet,
(ndr_pull_flags_fn_t)ndr_pull_nbt_name_packet);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(2,("Failed to parse incoming NBT name packet - %s\n",
nt_errstr(status)));
talloc_free(tmp_ctx);
return;
}
if (DEBUGLVL(10)) {
DEBUG(10,("Received nbt packet of length %d from %s:%d\n",
(int)blob.length, src->addr, src->port));
NDR_PRINT_DEBUG(nbt_name_packet, packet);
}
/* if its not a reply then pass it off to the incoming request
handler, if any */
if (!(packet->operation & NBT_FLAG_REPLY)) {
if (nbtsock->incoming.handler) {
nbtsock->incoming.handler(nbtsock, packet, src);
}
talloc_free(tmp_ctx);
return;
}
/* find the matching request */
req = idr_find(nbtsock->idr, packet->name_trn_id);
if (req == NULL) {
if (nbtsock->unexpected.handler) {
nbtsock->unexpected.handler(nbtsock, packet, src);
} else {
DEBUG(2,("Failed to match request for incoming name packet id 0x%04x on %p\n",
packet->name_trn_id, nbtsock));
}
talloc_free(tmp_ctx);
return;
}
/* if this is a WACK response, this we need to go back to waiting,
but perhaps increase the timeout */
if ((packet->operation & NBT_OPCODE) == NBT_OPCODE_WACK) {
if (req->received_wack || packet->ancount < 1) {
nbt_name_request_destructor(req);
req->status = NT_STATUS_INVALID_NETWORK_RESPONSE;
req->state = NBT_REQUEST_ERROR;
goto done;
}
talloc_free(req->te);
/* we know we won't need any more retries - the server
has received our request */
req->num_retries = 0;
req->received_wack = True;
/* although there can be a timeout in the packet, w2k3 screws it up,
so better to set it ourselves */
req->timeout = lp_parm_int(-1, "nbt", "wack_timeout", 30);
req->te = event_add_timed(req->nbtsock->event_ctx, req,
timeval_current_ofs(req->timeout, 0),
nbt_name_socket_timeout, req);
talloc_free(tmp_ctx);
return;
}
req->replies = talloc_realloc(req, req->replies, struct nbt_name_reply, req->num_replies+1);
if (req->replies == NULL) {
nbt_name_request_destructor(req);
req->state = NBT_REQUEST_ERROR;
req->status = NT_STATUS_NO_MEMORY;
goto done;
}
talloc_steal(req, src);
req->replies[req->num_replies].dest = src;
talloc_steal(req, packet);
req->replies[req->num_replies].packet = packet;
req->num_replies++;
/* if we don't want multiple replies then we are done */
if (req->allow_multiple_replies &&
req->num_replies < NBT_MAX_REPLIES) {
talloc_free(tmp_ctx);
return;
}
nbt_name_request_destructor(req);
req->state = NBT_REQUEST_DONE;
req->status = NT_STATUS_OK;
done:
if (DEBUGLVL(9)) {
talloc_report(tmp_ctx, stdout);
talloc_report(req, stdout);
}
if (req->async.fn) {
req->async.fn(req);
}
talloc_free(tmp_ctx);
}
/*
handle fd events on a nbt_name_socket
*/
static void nbt_name_socket_handler(struct event_context *ev, struct fd_event *fde,
uint16_t flags, void *private)
{
struct nbt_name_socket *nbtsock = talloc_get_type(private,
struct nbt_name_socket);
if (nbtsock != NULL) {
if (flags & EVENT_FD_WRITE) {
nbt_name_socket_send(nbtsock);
}
if (flags & EVENT_FD_READ) {
nbt_name_socket_recv(nbtsock);
}
}
else {
DEBUG(9, ("Error condition in nbt_name_socket_handler: nbtsock was not of type struct nbt_name_socket"));
}
}
/*
initialise a nbt_name_socket. The event_ctx is optional, if provided
then operations will use that event context
*/
_PUBLIC_ struct nbt_name_socket *nbt_name_socket_init(TALLOC_CTX *mem_ctx,
struct event_context *event_ctx)
{
struct nbt_name_socket *nbtsock;
NTSTATUS status;
nbtsock = talloc(mem_ctx, struct nbt_name_socket);
if (nbtsock == NULL) goto failed;
if (event_ctx == NULL) {
nbtsock->event_ctx = event_context_init(nbtsock);
} else {
nbtsock->event_ctx = talloc_reference(nbtsock, event_ctx);
}
if (nbtsock->event_ctx == NULL) goto failed;
status = socket_create("ip", SOCKET_TYPE_DGRAM, &nbtsock->sock, 0);
if (!NT_STATUS_IS_OK(status)) goto failed;
socket_set_option(nbtsock->sock, "SO_BROADCAST", "1");
talloc_steal(nbtsock, nbtsock->sock);
nbtsock->idr = idr_init(nbtsock);
if (nbtsock->idr == NULL) goto failed;
nbtsock->send_queue = NULL;
nbtsock->num_pending = 0;
nbtsock->incoming.handler = NULL;
nbtsock->unexpected.handler = NULL;
nbtsock->fde = event_add_fd(nbtsock->event_ctx, nbtsock,
socket_get_fd(nbtsock->sock), 0,
nbt_name_socket_handler, nbtsock);
return nbtsock;
failed:
talloc_free(nbtsock);
return NULL;
}
/*
send off a nbt name request
*/
struct nbt_name_request *nbt_name_request_send(struct nbt_name_socket *nbtsock,
struct socket_address *dest,
struct nbt_name_packet *request,
int timeout, int retries,
BOOL allow_multiple_replies)
{
struct nbt_name_request *req;
int id;
NTSTATUS status;
req = talloc_zero(nbtsock, struct nbt_name_request);
if (req == NULL) goto failed;
req->nbtsock = nbtsock;
req->allow_multiple_replies = allow_multiple_replies;
req->state = NBT_REQUEST_SEND;
req->is_reply = False;
req->timeout = timeout;
req->num_retries = retries;
req->dest = dest;
if (talloc_reference(req, dest) == NULL) goto failed;
/* we select a random transaction id unless the user supplied one */
if (request->name_trn_id == 0) {
id = idr_get_new_random(req->nbtsock->idr, req, UINT16_MAX);
} else {
if (idr_find(req->nbtsock->idr, request->name_trn_id)) goto failed;
id = idr_get_new_above(req->nbtsock->idr, req, request->name_trn_id,
UINT16_MAX);
}
if (id == -1) goto failed;
request->name_trn_id = id;
req->name_trn_id = id;
req->te = event_add_timed(nbtsock->event_ctx, req,
timeval_current_ofs(req->timeout, 0),
nbt_name_socket_timeout, req);
talloc_set_destructor(req, nbt_name_request_destructor);
status = ndr_push_struct_blob(&req->encoded, req, request,
(ndr_push_flags_fn_t)ndr_push_nbt_name_packet);
if (!NT_STATUS_IS_OK(status)) goto failed;
DLIST_ADD_END(nbtsock->send_queue, req, struct nbt_name_request *);
if (DEBUGLVL(10)) {
DEBUG(10,("Queueing nbt packet to %s:%d\n",
req->dest->addr, req->dest->port));
NDR_PRINT_DEBUG(nbt_name_packet, request);
}
EVENT_FD_WRITEABLE(nbtsock->fde);
return req;
failed:
talloc_free(req);
return NULL;
}
/*
send off a nbt name reply
*/
NTSTATUS nbt_name_reply_send(struct nbt_name_socket *nbtsock,
struct socket_address *dest,
struct nbt_name_packet *request)
{
struct nbt_name_request *req;
NTSTATUS status;
req = talloc_zero(nbtsock, struct nbt_name_request);
NT_STATUS_HAVE_NO_MEMORY(req);
req->nbtsock = nbtsock;
req->dest = dest;
if (talloc_reference(req, dest) == NULL) goto failed;
req->state = NBT_REQUEST_SEND;
req->is_reply = True;
talloc_set_destructor(req, nbt_name_request_destructor);
if (DEBUGLVL(10)) {
NDR_PRINT_DEBUG(nbt_name_packet, request);
}
status = ndr_push_struct_blob(&req->encoded, req, request,
(ndr_push_flags_fn_t)ndr_push_nbt_name_packet);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(req);
return status;
}
DLIST_ADD_END(nbtsock->send_queue, req, struct nbt_name_request *);
EVENT_FD_WRITEABLE(nbtsock->fde);
return NT_STATUS_OK;
failed:
talloc_free(req);
return NT_STATUS_NO_MEMORY;
}
/*
wait for a nbt request to complete
*/
NTSTATUS nbt_name_request_recv(struct nbt_name_request *req)
{
if (!req) return NT_STATUS_NO_MEMORY;
while (req->state < NBT_REQUEST_DONE) {
if (event_loop_once(req->nbtsock->event_ctx) != 0) {
req->state = NBT_REQUEST_ERROR;
req->status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
if (req->async.fn) {
req->async.fn(req);
}
}
}
return req->status;
}
/*
setup a handler for incoming requests
*/
NTSTATUS nbt_set_incoming_handler(struct nbt_name_socket *nbtsock,
void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *,
struct socket_address *),
void *private)
{
nbtsock->incoming.handler = handler;
nbtsock->incoming.private = private;
EVENT_FD_READABLE(nbtsock->fde);
return NT_STATUS_OK;
}
/*
turn a NBT rcode into a NTSTATUS
*/
NTSTATUS nbt_rcode_to_ntstatus(uint8_t rcode)
{
int i;
struct {
enum nbt_rcode rcode;
NTSTATUS status;
} map[] = {
{ NBT_RCODE_FMT, NT_STATUS_INVALID_PARAMETER },
{ NBT_RCODE_SVR, NT_STATUS_SERVER_DISABLED },
{ NBT_RCODE_NAM, NT_STATUS_OBJECT_NAME_NOT_FOUND },
{ NBT_RCODE_IMP, NT_STATUS_NOT_SUPPORTED },
{ NBT_RCODE_RFS, NT_STATUS_ACCESS_DENIED },
{ NBT_RCODE_ACT, NT_STATUS_ADDRESS_ALREADY_EXISTS },
{ NBT_RCODE_CFT, NT_STATUS_CONFLICTING_ADDRESSES }
};
for (i=0;i<ARRAY_SIZE(map);i++) {
if (map[i].rcode == rcode) {
return map[i].status;
}
}
return NT_STATUS_UNSUCCESSFUL;
}