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amd64: use register macros for gdb_cpu_getreg()
[FreeBSD/FreeBSD.git] / contrib / libpcap / rpcapd / win32-svc.c
1 /*
2  * Copyright (c) 2002 - 2003
3  * NetGroup, Politecnico di Torino (Italy)
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the Politecnico di Torino nor the names of its
16  * contributors may be used to endorse or promote products derived from
17  * this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  *
31  */
32
33
34 #include "rpcapd.h"
35 #include <pcap.h>               // for PCAP_ERRBUF_SIZE
36 #include "fmtutils.h"
37 #include "portability.h"
38 #include "fileconf.h"
39 #include "log.h"
40
41 static SERVICE_STATUS_HANDLE service_status_handle;
42 static SERVICE_STATUS service_status;
43
44 static void WINAPI svc_main(DWORD argc, char **argv);
45 static void update_svc_status(DWORD state, DWORD progress_indicator);
46
47 int svc_start(void)
48 {
49         int rc;
50         SERVICE_TABLE_ENTRY ste[] =
51         {
52                 { PROGRAM_NAME, svc_main },
53                 { NULL, NULL }
54         };
55         char string[PCAP_ERRBUF_SIZE];
56
57         // This call is blocking. A new thread is created which will launch
58         // the svc_main() function
59         if ((rc = StartServiceCtrlDispatcher(ste)) == 0) {
60                 pcap_fmt_errmsg_for_win32_err(string, sizeof (string),
61                     GetLastError(), "StartServiceCtrlDispatcher() failed");
62                 rpcapd_log(LOGPRIO_ERROR, "%s", string);
63         }
64
65         return rc; // FALSE if this is not started as a service
66 }
67
68 void WINAPI svc_control_handler(DWORD Opcode)
69 {
70         switch(Opcode)
71         {
72                 case SERVICE_CONTROL_STOP:
73                         //
74                         // XXX - is this sufficient to clean up the service?
75                         // To be really honest, only the main socket and
76                         // such these stuffs are cleared; however the threads
77                         // that are running are not stopped.
78                         // This can be seen by placing a breakpoint at the
79                         // end of svc_main(), in which you will see that is
80                         // never reached. However, as soon as you set the
81                         // service status to "stopped", the
82                         // StartServiceCtrlDispatcher() returns and the main
83                         // thread ends. Then, Win32 has a good automatic
84                         // cleanup, so that all the threads which are still
85                         // running are stopped when the main thread ends.
86                         //
87                         send_shutdown_notification();
88
89                         update_svc_status(SERVICE_STOP_PENDING, 0);
90                         break;
91
92                 /*
93                         Pause and Continue have an usual meaning and they are used just to be able
94                         to change the running parameters at run-time. In other words, they act
95                         like the SIGHUP signal on UNIX. All the running threads continue to run and
96                         they are not paused at all.
97                         Particularly,
98                         - PAUSE does nothing
99                         - CONTINUE re-reads the configuration file and creates the new threads that
100                         can be needed according to the new configuration.
101                 */
102                 case SERVICE_CONTROL_PAUSE:
103                         update_svc_status(SERVICE_PAUSED, 0);
104                         break;
105
106                 case SERVICE_CONTROL_CONTINUE:
107                         update_svc_status(SERVICE_RUNNING, 0);
108                         //
109                         // Tell the main loop to re-read the configuration.
110                         //
111                         send_reread_configuration_notification();
112                         break;
113
114                 case SERVICE_CONTROL_INTERROGATE:
115                         // Fall through to send current status.
116                         //      WARNING: not implemented
117                         update_svc_status(SERVICE_RUNNING, 0);
118                         MessageBox(NULL, "Not implemented", "warning", MB_OK);
119                         break;
120
121                 case SERVICE_CONTROL_PARAMCHANGE:
122                         //
123                         // Tell the main loop to re-read the configuration.
124                         //
125                         send_reread_configuration_notification();
126                         break;
127         }
128
129         // Send current status.
130         return;
131 }
132
133 void WINAPI svc_main(DWORD argc, char **argv)
134 {
135         service_status_handle = RegisterServiceCtrlHandler(PROGRAM_NAME, svc_control_handler);
136
137         if (!service_status_handle)
138                 return;
139
140         service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS;
141         service_status.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE | SERVICE_ACCEPT_PARAMCHANGE;
142         // | SERVICE_ACCEPT_SHUTDOWN ;
143         update_svc_status(SERVICE_RUNNING, 0);
144
145         //
146         // Service requests until we're told to stop.
147         //
148         main_startup();
149
150         //
151         // It returned, so we were told to stop.
152         //
153         update_svc_status(SERVICE_STOPPED, 0);
154 }
155
156 static void
157 update_svc_status(DWORD state, DWORD progress_indicator)
158 {
159         service_status.dwWin32ExitCode = NO_ERROR;
160         service_status.dwCurrentState = state;
161         service_status.dwCheckPoint = progress_indicator;
162         service_status.dwWaitHint = 0;
163         SetServiceStatus(service_status_handle, &service_status);
164 }
165
166 /*
167 sc create rpcapd DisplayName= "Remote Packet Capture Protocol v.0 (experimental)" binpath= "C:\cvsroot\winpcap\wpcap\PRJ\Debug\rpcapd -d -f rpcapd.ini"
168 sc description rpcapd "Allows to capture traffic on this host from a remote machine."
169 */