1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
Unix SMB/CIFS implementation.
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) James Peach 2007
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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "smb_launchd.h"
extern pstring user_socket_options;
static int init_sockets_smbd(const char *smb_ports, int listenset[FD_SETSIZE])
{
int num_interfaces = iface_count();
char * ports;
int num_sockets = 0;
int i, s;
/* use a reasonable default set of ports - listing on 445 and 139 */
if (!smb_ports) {
ports = lp_smb_ports();
if (!ports || !*ports) {
ports = smb_xstrdup(SMB_PORTS);
} else {
ports = smb_xstrdup(ports);
}
} else {
ports = smb_xstrdup(smb_ports);
}
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_interfaces; i++) {
struct in_addr *ifip = iface_n_ip(i);
fstring tok;
const char *ptr;
if(ifip == NULL) {
DEBUG(0,("init_sockets_smbd: interface %d has NULL IP address !\n", i));
continue;
}
for (ptr=ports; next_token(&ptr, tok, " \t,", sizeof(tok)); ) {
unsigned port = atoi(tok);
if (port == 0 || port > 0xffff) {
continue;
}
s = listenset[num_sockets] = open_socket_in(SOCK_STREAM, port, 0, ifip->s_addr, True);
if(s == -1)
return 0;
/* ready to listen */
set_socket_options(s,"SO_KEEPALIVE");
set_socket_options(s,user_socket_options);
/* Set server socket to non-blocking for the accept. */
set_blocking(s,False);
if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
DEBUG(0,("listen: %s\n",strerror(errno)));
close(s);
return 0;
}
num_sockets++;
if (num_sockets >= FD_SETSIZE) {
DEBUG(0,("init_sockets_smbd: Too many sockets to bind to\n"));
return 0;
}
}
}
} else {
/* Just bind to 0.0.0.0 - accept connections
from anywhere. */
fstring tok;
const char *ptr;
num_interfaces = 1;
for (ptr=ports; next_token(&ptr, tok, " \t,", sizeof(tok)); ) {
unsigned port = atoi(tok);
if (port == 0 || port > 0xffff) continue;
/* open an incoming socket */
s = open_socket_in(SOCK_STREAM, port, 0,
interpret_addr(lp_socket_address()),True);
if (s == -1)
return 0;
/* ready to listen */
set_socket_options(s,"SO_KEEPALIVE");
set_socket_options(s,user_socket_options);
/* Set server socket to non-blocking for the accept. */
set_blocking(s,False);
if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
DEBUG(0,("init_sockets_smbd: listen: %s\n",
strerror(errno)));
close(s);
return 0;
}
listenset[num_sockets] = s;
num_sockets++;
if (num_sockets >= FD_SETSIZE) {
DEBUG(0,("init_sockets_smbd: Too many sockets to bind to\n"));
return 0;
}
}
}
SAFE_FREE(ports);
return num_sockets;
}
static int init_sockets_launchd(const struct smb_launch_info *linfo,
const char * smb_ports,
int listenset[FD_SETSIZE])
{
int num_sockets;
int i;
/* The launchd service configuration does not have to provide sockets,
* even though it's basically useless without it.
*/
if (!linfo->num_sockets) {
return init_sockets_smbd(smb_ports, listenset);
}
/* Make sure we don't get more sockets than we can handle. */
num_sockets = MIN(FD_SETSIZE, linfo->num_sockets);
memcpy(listenset, linfo->socket_list, num_sockets * sizeof(int));
/* Get the sockets ready. This could be hoisted into
* open_sockets_smbd(), but the order of socket operations might
* matter for some platforms, so this approach seems less risky.
* --jpeach
*/
for (i = 0; i < num_sockets; ++i) {
set_socket_options(listenset[i], "SO_KEEPALIVE");
set_socket_options(listenset[i], user_socket_options);
/* Set server socket to non-blocking for the accept. */
set_blocking(listenset[i], False);
}
return num_sockets;
}
/* This function is responsible for opening (or retrieving) all the sockets we
* smbd will be listening on. It should apply all the configured socket options
* and return the number of valid sockets in listenset.
*/
int smbd_sockinit(const char *cmdline_ports, int listenset[FD_SETSIZE],
struct timeval *idle)
{
int num_sockets;
struct smb_launch_info linfo;
ZERO_STRUCTP(idle);
if (smb_launchd_checkin(&linfo)) {
/* We are running under launchd and launchd has
* opened some sockets for us.
*/
num_sockets = init_sockets_launchd(&linfo,
cmdline_ports,
listenset);
idle->tv_sec = linfo.idle_timeout_secs;
smb_launchd_checkout(&linfo);
} else {
num_sockets = init_sockets_smbd(cmdline_ports,
listenset);
}
return num_sockets;
}
|
