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/*
* Unix SMB/CIFS implementation.
*
* RPC Socket Helper
*
* Copyright (c) 2011 Andreas Schneider <asn@samba.org>
*
* 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 "ntdomain.h"
#include "../lib/tsocket/tsocket.h"
#include "librpc/rpc/dcerpc_ep.h"
#include "rpc_server/rpc_server.h"
#include "rpc_server/rpc_sock_helper.h"
NTSTATUS rpc_create_tcpip_sockets(const struct ndr_interface_table *iface,
struct dcerpc_binding_vector *bvec,
uint16_t port,
int *listen_fd,
int *listen_fd_size)
{
uint32_t num_ifs = iface_count();
uint32_t i;
uint16_t p = port;
TALLOC_CTX *tmp_ctx;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
int rc;
tmp_ctx = talloc_stackframe();
if (tmp_ctx == NULL) {
return NT_STATUS_NO_MEMORY;
}
if (lp_interfaces() && lp_bind_interfaces_only()) {
/*
* We have been given an interfaces line, and been told to only
* bind to those interfaces. Create a socket per interface and
* bind to only these.
*/
/* Now open a listen socket for each of the interfaces. */
for (i = 0; i < num_ifs; i++) {
const struct sockaddr_storage *ifss =
iface_n_sockaddr_storage(i);
struct tsocket_address *bind_addr;
const char *addr;
int fd;
fd = create_tcpip_socket(ifss, &p);
if (fd < 0 || p == 0) {
status = NT_STATUS_UNSUCCESSFUL;
goto done;
}
listen_fd[*listen_fd_size] = fd;
(*listen_fd_size)++;
if (bvec != NULL) {
rc = tsocket_address_bsd_from_sockaddr(tmp_ctx,
(struct sockaddr *)ifss,
sizeof(struct sockaddr_storage),
&bind_addr);
if (rc < 0) {
close(fd);
status = NT_STATUS_NO_MEMORY;
goto done;
}
addr = tsocket_address_inet_addr_string(bind_addr,
tmp_ctx);
if (addr == NULL) {
close(fd);
status = NT_STATUS_NO_MEMORY;
goto done;
}
status = dcerpc_binding_vector_add_port(iface,
bvec,
addr,
p);
if (!NT_STATUS_IS_OK(status)) {
close(fd);
goto done;
}
}
}
} else {
const char *sock_addr = lp_socket_address();
const char *sock_ptr;
char *sock_tok;
if (strequal(sock_addr, "0.0.0.0") ||
strequal(sock_addr, "::")) {
#if HAVE_IPV6
sock_addr = "::,0.0.0.0";
#else
sock_addr = "0.0.0.0";
#endif
}
for (sock_ptr = sock_addr;
next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,");
) {
struct sockaddr_storage ss;
int fd;
/* open an incoming socket */
if (!interpret_string_addr(&ss,
sock_tok,
AI_NUMERICHOST|AI_PASSIVE)) {
continue;
}
fd = create_tcpip_socket(&ss, &p);
if (fd < 0 || p == 0) {
status = NT_STATUS_UNSUCCESSFUL;
goto done;
}
listen_fd[*listen_fd_size] = fd;
(*listen_fd_size)++;
if (bvec != NULL) {
status = dcerpc_binding_vector_add_port(iface,
bvec,
sock_ptr,
p);
if (!NT_STATUS_IS_OK(status)) {
close(fd);
return status;
}
}
}
}
status = NT_STATUS_OK;
done:
talloc_free(tmp_ctx);
return status;
}
NTSTATUS rpc_setup_tcpip_sockets(struct tevent_context *ev_ctx,
struct messaging_context *msg_ctx,
const struct ndr_interface_table *iface,
struct dcerpc_binding_vector *bvec,
uint16_t port)
{
uint32_t num_ifs = iface_count();
uint32_t i;
uint16_t p = 0;
TALLOC_CTX *tmp_ctx;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
int rc;
tmp_ctx = talloc_stackframe();
if (tmp_ctx == NULL) {
return NT_STATUS_NO_MEMORY;
}
if (lp_interfaces() && lp_bind_interfaces_only()) {
/*
* We have been given an interfaces line, and been told to only
* bind to those interfaces. Create a socket per interface and
* bind to only these.
*/
/* Now open a listen socket for each of the interfaces. */
for (i = 0; i < num_ifs; i++) {
const struct sockaddr_storage *ifss =
iface_n_sockaddr_storage(i);
struct tsocket_address *bind_addr;
const char *addr;
p = setup_dcerpc_ncacn_tcpip_socket(ev_ctx,
msg_ctx,
ifss,
port);
if (p == 0) {
status = NT_STATUS_UNSUCCESSFUL;
goto done;
}
if (bvec != NULL) {
rc = tsocket_address_bsd_from_sockaddr(tmp_ctx,
(struct sockaddr*)ifss,
sizeof(struct sockaddr_storage),
&bind_addr);
if (rc < 0) {
return NT_STATUS_NO_MEMORY;
}
addr = tsocket_address_inet_addr_string(bind_addr,
tmp_ctx);
if (addr == NULL) {
return NT_STATUS_NO_MEMORY;
}
status = dcerpc_binding_vector_add_port(iface,
bvec,
addr,
p);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
}
} else {
const char *sock_addr = lp_socket_address();
const char *sock_ptr;
char *sock_tok;
if (strequal(sock_addr, "0.0.0.0") ||
strequal(sock_addr, "::")) {
#if HAVE_IPV6
sock_addr = "::,0.0.0.0";
#else
sock_addr = "0.0.0.0";
#endif
}
for (sock_ptr = sock_addr;
next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,");
) {
struct sockaddr_storage ss;
/* open an incoming socket */
if (!interpret_string_addr(&ss,
sock_tok,
AI_NUMERICHOST|AI_PASSIVE)) {
continue;
}
p = setup_dcerpc_ncacn_tcpip_socket(ev_ctx,
msg_ctx,
&ss,
port);
if (p == 0) {
return NT_STATUS_UNSUCCESSFUL;
}
if (bvec != NULL) {
status = dcerpc_binding_vector_add_port(iface,
bvec,
sock_tok,
p);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
}
}
status = NT_STATUS_OK;
done:
talloc_free(tmp_ctx);
return status;
}
/* vim: set ts=8 sw=8 noet cindent syntax=c.doxygen: */
|
