bss_log.c revision 68651 
1/* crypto/bio/bss_log.c */
2/* ====================================================================
3 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in
14 *    the documentation and/or other materials provided with the
15 *    distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 *    software must display the following acknowledgment:
19 *    "This product includes software developed by the OpenSSL Project
20 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 *    endorse or promote products derived from this software without
24 *    prior written permission. For written permission, please contact
25 *    licensing@OpenSSL.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 *    nor may "OpenSSL" appear in their names without prior written
29 *    permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 *    acknowledgment:
33 *    "This product includes software developed by the OpenSSL Project
34 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com).  This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55
56/*
57	Why BIO_s_log?
58
59	BIO_s_log is useful for system daemons (or services under NT).
60	It is one-way BIO, it sends all stuff to syslogd (on system that
61	commonly use that), or event log (on NT), or OPCOM (on OpenVMS).
62
63*/
64
65
66#include <stdio.h>
67#include <errno.h>
68
69#if defined(WIN32)
70#  include <process.h>
71#elif defined(VMS) || defined(__VMS)
72#  include <opcdef.h>
73#  include <descrip.h>
74#  include <lib$routines.h>
75#  include <starlet.h>
76#elif defined(__ultrix)
77#  include <sys/syslog.h>
78#elif !defined(MSDOS) /* Unix */
79#  include <syslog.h>
80#endif
81
82#include "cryptlib.h"
83#include <openssl/buffer.h>
84#include <openssl/err.h>
85
86#ifndef NO_SYSLOG
87
88#if defined(WIN32)
89#define LOG_EMERG	0
90#define LOG_ALERT	1
91#define LOG_CRIT	2
92#define LOG_ERR		3
93#define LOG_WARNING	4
94#define LOG_NOTICE	5
95#define LOG_INFO	6
96#define LOG_DEBUG	7
97
98#define LOG_DAEMON	(3<<3)
99#elif defined(VMS)
100/* On VMS, we don't really care about these, but we need them to compile */
101#define LOG_EMERG	0
102#define LOG_ALERT	1
103#define LOG_CRIT	2
104#define LOG_ERR		3
105#define LOG_WARNING	4
106#define LOG_NOTICE	5
107#define LOG_INFO	6
108#define LOG_DEBUG	7
109
110#define LOG_DAEMON	OPC$M_NM_NTWORK
111#endif
112
113static int MS_CALLBACK slg_write(BIO *h, const char *buf, int num);
114static int MS_CALLBACK slg_puts(BIO *h, const char *str);
115static long MS_CALLBACK slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);
116static int MS_CALLBACK slg_new(BIO *h);
117static int MS_CALLBACK slg_free(BIO *data);
118static void xopenlog(BIO* bp, char* name, int level);
119static void xsyslog(BIO* bp, int priority, const char* string);
120static void xcloselog(BIO* bp);
121#ifdef WIN32
122LONG	(WINAPI *go_for_advapi)()	= RegOpenKeyEx;
123HANDLE	(WINAPI *register_event_source)()	= NULL;
124BOOL	(WINAPI *deregister_event_source)()	= NULL;
125BOOL	(WINAPI *report_event)()	= NULL;
126#define DL_PROC(m,f)	(GetProcAddress( m, f ))
127#ifdef UNICODE
128#define DL_PROC_X(m,f) DL_PROC( m, f "W" )
129#else
130#define DL_PROC_X(m,f) DL_PROC( m, f "A" )
131#endif
132#endif
133
134static BIO_METHOD methods_slg=
135	{
136	BIO_TYPE_MEM,"syslog",
137	slg_write,
138	NULL,
139	slg_puts,
140	NULL,
141	slg_ctrl,
142	slg_new,
143	slg_free,
144	NULL,
145	};
146
147BIO_METHOD *BIO_s_log(void)
148	{
149	return(&methods_slg);
150	}
151
152static int MS_CALLBACK slg_new(BIO *bi)
153	{
154	bi->init=1;
155	bi->num=0;
156	bi->ptr=NULL;
157	xopenlog(bi, "application", LOG_DAEMON);
158	return(1);
159	}
160
161static int MS_CALLBACK slg_free(BIO *a)
162	{
163	if (a == NULL) return(0);
164	xcloselog(a);
165	return(1);
166	}
167
168static int MS_CALLBACK slg_write(BIO *b, const char *in, int inl)
169	{
170	int ret= inl;
171	char* buf;
172	char* pp;
173	int priority, i;
174	static struct
175		{
176		int strl;
177		char str[10];
178		int log_level;
179		}
180	mapping[] =
181		{
182		{ 6, "PANIC ", LOG_EMERG },
183		{ 6, "EMERG ", LOG_EMERG },
184		{ 4, "EMR ", LOG_EMERG },
185		{ 6, "ALERT ", LOG_ALERT },
186		{ 4, "ALR ", LOG_ALERT },
187		{ 5, "CRIT ", LOG_CRIT },
188		{ 4, "CRI ", LOG_CRIT },
189		{ 6, "ERROR ", LOG_ERR },
190		{ 4, "ERR ", LOG_ERR },
191		{ 8, "WARNING ", LOG_WARNING },
192		{ 5, "WARN ", LOG_WARNING },
193		{ 4, "WAR ", LOG_WARNING },
194		{ 7, "NOTICE ", LOG_NOTICE },
195		{ 5, "NOTE ", LOG_NOTICE },
196		{ 4, "NOT ", LOG_NOTICE },
197		{ 5, "INFO ", LOG_INFO },
198		{ 4, "INF ", LOG_INFO },
199		{ 6, "DEBUG ", LOG_DEBUG },
200		{ 4, "DBG ", LOG_DEBUG },
201		{ 0, "", LOG_ERR } /* The default */
202		};
203
204	if((buf= (char *)OPENSSL_malloc(inl+ 1)) == NULL){
205		return(0);
206	}
207	strncpy(buf, in, inl);
208	buf[inl]= '\0';
209
210	i = 0;
211	while(strncmp(buf, mapping[i].str, mapping[i].strl) != 0) i++;
212	priority = mapping[i].log_level;
213	pp = buf + mapping[i].strl;
214
215	xsyslog(b, priority, pp);
216
217	OPENSSL_free(buf);
218	return(ret);
219	}
220
221static long MS_CALLBACK slg_ctrl(BIO *b, int cmd, long num, void *ptr)
222	{
223	switch (cmd)
224		{
225	case BIO_CTRL_SET:
226		xcloselog(b);
227		xopenlog(b, ptr, num);
228		break;
229	default:
230		break;
231		}
232	return(0);
233	}
234
235static int MS_CALLBACK slg_puts(BIO *bp, const char *str)
236	{
237	int n,ret;
238
239	n=strlen(str);
240	ret=slg_write(bp,str,n);
241	return(ret);
242	}
243
244#if defined(WIN32)
245
246static void xopenlog(BIO* bp, char* name, int level)
247{
248	if ( !register_event_source )
249		{
250		HANDLE	advapi;
251		if ( !(advapi = GetModuleHandle("advapi32")) )
252			return;
253		register_event_source = (HANDLE (WINAPI *)())DL_PROC_X(advapi,
254			"RegisterEventSource" );
255		deregister_event_source = (BOOL (WINAPI *)())DL_PROC(advapi,
256			"DeregisterEventSource");
257		report_event = (BOOL (WINAPI *)())DL_PROC_X(advapi,
258			"ReportEvent" );
259		if ( !(register_event_source && deregister_event_source &&
260				report_event) )
261			{
262			register_event_source = NULL;
263			deregister_event_source = NULL;
264			report_event = NULL;
265			return;
266			}
267		}
268	bp->ptr= (char *)register_event_source(NULL, name);
269}
270
271static void xsyslog(BIO *bp, int priority, const char *string)
272{
273	LPCSTR lpszStrings[2];
274	WORD evtype= EVENTLOG_ERROR_TYPE;
275	int pid = _getpid();
276	char pidbuf[20];
277
278	switch (priority)
279		{
280	case LOG_EMERG:
281	case LOG_ALERT:
282	case LOG_CRIT:
283	case LOG_ERR:
284		evtype = EVENTLOG_ERROR_TYPE;
285		break;
286	case LOG_WARNING:
287		evtype = EVENTLOG_WARNING_TYPE;
288		break;
289	case LOG_NOTICE:
290	case LOG_INFO:
291	case LOG_DEBUG:
292		evtype = EVENTLOG_INFORMATION_TYPE;
293		break;
294	default:		/* Should never happen, but set it
295				   as error anyway. */
296		evtype = EVENTLOG_ERROR_TYPE;
297		break;
298		}
299
300	sprintf(pidbuf, "[%d] ", pid);
301	lpszStrings[0] = pidbuf;
302	lpszStrings[1] = string;
303
304	if(report_event && bp->ptr)
305		report_event(bp->ptr, evtype, 0, 1024, NULL, 2, 0,
306				lpszStrings, NULL);
307}
308
309static void xcloselog(BIO* bp)
310{
311	if(deregister_event_source && bp->ptr)
312		deregister_event_source((HANDLE)(bp->ptr));
313	bp->ptr= NULL;
314}
315
316#elif defined(VMS)
317
318static int VMS_OPC_target = LOG_DAEMON;
319
320static void xopenlog(BIO* bp, char* name, int level)
321{
322	VMS_OPC_target = level;
323}
324
325static void xsyslog(BIO *bp, int priority, const char *string)
326{
327	struct dsc$descriptor_s opc_dsc;
328	struct opcdef *opcdef_p;
329	char buf[10240];
330	unsigned int len;
331        struct dsc$descriptor_s buf_dsc;
332	$DESCRIPTOR(fao_cmd, "!AZ: !AZ");
333	char *priority_tag;
334
335	switch (priority)
336	  {
337	  case LOG_EMERG: priority_tag = "Emergency"; break;
338	  case LOG_ALERT: priority_tag = "Alert"; break;
339	  case LOG_CRIT: priority_tag = "Critical"; break;
340	  case LOG_ERR: priority_tag = "Error"; break;
341	  case LOG_WARNING: priority_tag = "Warning"; break;
342	  case LOG_NOTICE: priority_tag = "Notice"; break;
343	  case LOG_INFO: priority_tag = "Info"; break;
344	  case LOG_DEBUG: priority_tag = "DEBUG"; break;
345	  }
346
347	buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
348	buf_dsc.dsc$b_class = DSC$K_CLASS_S;
349	buf_dsc.dsc$a_pointer = buf;
350	buf_dsc.dsc$w_length = sizeof(buf) - 1;
351
352	lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string);
353
354	/* we know there's an 8 byte header.  That's documented */
355	opcdef_p = (struct opcdef *) OPENSSL_malloc(8 + len);
356	opcdef_p->opc$b_ms_type = OPC$_RQ_RQST;
357	memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3);
358	opcdef_p->opc$l_ms_rqstid = 0;
359	memcpy(&opcdef_p->opc$l_ms_text, buf, len);
360
361	opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
362	opc_dsc.dsc$b_class = DSC$K_CLASS_S;
363	opc_dsc.dsc$a_pointer = (char *)opcdef_p;
364	opc_dsc.dsc$w_length = len + 8;
365
366	sys$sndopr(opc_dsc, 0);
367
368	OPENSSL_free(opcdef_p);
369}
370
371static void xcloselog(BIO* bp)
372{
373}
374
375#else /* Unix */
376
377static void xopenlog(BIO* bp, char* name, int level)
378{
379	openlog(name, LOG_PID|LOG_CONS, level);
380}
381
382static void xsyslog(BIO *bp, int priority, const char *string)
383{
384	syslog(priority, "%s", string);
385}
386
387static void xcloselog(BIO* bp)
388{
389	closelog();
390}
391
392#endif /* Unix */
393
394#endif /* NO_SYSLOG */
395