bss_log.c revision 109998 
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#include "cryptlib.h"
70
71#if defined(OPENSSL_SYS_WINCE)
72#elif defined(OPENSSL_SYS_WIN32)
73#  include <process.h>
74#elif defined(OPENSSL_SYS_VMS)
75#  include <opcdef.h>
76#  include <descrip.h>
77#  include <lib$routines.h>
78#  include <starlet.h>
79#elif defined(__ultrix)
80#  include <sys/syslog.h>
81#elif (!defined(MSDOS) || defined(WATT32)) && !defined(OPENSSL_SYS_VXWORKS) && !defined(NO_SYSLOG)
82#  include <syslog.h>
83#endif
84
85#include <openssl/buffer.h>
86#include <openssl/err.h>
87
88#ifndef NO_SYSLOG
89
90#if defined(OPENSSL_SYS_WIN32)
91#define LOG_EMERG	0
92#define LOG_ALERT	1
93#define LOG_CRIT	2
94#define LOG_ERR		3
95#define LOG_WARNING	4
96#define LOG_NOTICE	5
97#define LOG_INFO	6
98#define LOG_DEBUG	7
99
100#define LOG_DAEMON	(3<<3)
101#elif defined(OPENSSL_SYS_VMS)
102/* On VMS, we don't really care about these, but we need them to compile */
103#define LOG_EMERG	0
104#define LOG_ALERT	1
105#define LOG_CRIT	2
106#define LOG_ERR		3
107#define LOG_WARNING	4
108#define LOG_NOTICE	5
109#define LOG_INFO	6
110#define LOG_DEBUG	7
111
112#define LOG_DAEMON	OPC$M_NM_NTWORK
113#endif
114
115static int MS_CALLBACK slg_write(BIO *h, const char *buf, int num);
116static int MS_CALLBACK slg_puts(BIO *h, const char *str);
117static long MS_CALLBACK slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);
118static int MS_CALLBACK slg_new(BIO *h);
119static int MS_CALLBACK slg_free(BIO *data);
120static void xopenlog(BIO* bp, char* name, int level);
121static void xsyslog(BIO* bp, int priority, const char* string);
122static void xcloselog(BIO* bp);
123#ifdef OPENSSL_SYS_WIN32
124LONG	(WINAPI *go_for_advapi)()	= RegOpenKeyEx;
125HANDLE	(WINAPI *register_event_source)()	= NULL;
126BOOL	(WINAPI *deregister_event_source)()	= NULL;
127BOOL	(WINAPI *report_event)()	= NULL;
128#define DL_PROC(m,f)	(GetProcAddress( m, f ))
129#ifdef UNICODE
130#define DL_PROC_X(m,f) DL_PROC( m, f "W" )
131#else
132#define DL_PROC_X(m,f) DL_PROC( m, f "A" )
133#endif
134#endif
135
136static BIO_METHOD methods_slg=
137	{
138	BIO_TYPE_MEM,"syslog",
139	slg_write,
140	NULL,
141	slg_puts,
142	NULL,
143	slg_ctrl,
144	slg_new,
145	slg_free,
146	NULL,
147	};
148
149BIO_METHOD *BIO_s_log(void)
150	{
151	return(&methods_slg);
152	}
153
154static int MS_CALLBACK slg_new(BIO *bi)
155	{
156	bi->init=1;
157	bi->num=0;
158	bi->ptr=NULL;
159	xopenlog(bi, "application", LOG_DAEMON);
160	return(1);
161	}
162
163static int MS_CALLBACK slg_free(BIO *a)
164	{
165	if (a == NULL) return(0);
166	xcloselog(a);
167	return(1);
168	}
169
170static int MS_CALLBACK slg_write(BIO *b, const char *in, int inl)
171	{
172	int ret= inl;
173	char* buf;
174	char* pp;
175	int priority, i;
176	static struct
177		{
178		int strl;
179		char str[10];
180		int log_level;
181		}
182	mapping[] =
183		{
184		{ 6, "PANIC ", LOG_EMERG },
185		{ 6, "EMERG ", LOG_EMERG },
186		{ 4, "EMR ", LOG_EMERG },
187		{ 6, "ALERT ", LOG_ALERT },
188		{ 4, "ALR ", LOG_ALERT },
189		{ 5, "CRIT ", LOG_CRIT },
190		{ 4, "CRI ", LOG_CRIT },
191		{ 6, "ERROR ", LOG_ERR },
192		{ 4, "ERR ", LOG_ERR },
193		{ 8, "WARNING ", LOG_WARNING },
194		{ 5, "WARN ", LOG_WARNING },
195		{ 4, "WAR ", LOG_WARNING },
196		{ 7, "NOTICE ", LOG_NOTICE },
197		{ 5, "NOTE ", LOG_NOTICE },
198		{ 4, "NOT ", LOG_NOTICE },
199		{ 5, "INFO ", LOG_INFO },
200		{ 4, "INF ", LOG_INFO },
201		{ 6, "DEBUG ", LOG_DEBUG },
202		{ 4, "DBG ", LOG_DEBUG },
203		{ 0, "", LOG_ERR } /* The default */
204		};
205
206	if((buf= (char *)OPENSSL_malloc(inl+ 1)) == NULL){
207		return(0);
208	}
209	strncpy(buf, in, inl);
210	buf[inl]= '\0';
211
212	i = 0;
213	while(strncmp(buf, mapping[i].str, mapping[i].strl) != 0) i++;
214	priority = mapping[i].log_level;
215	pp = buf + mapping[i].strl;
216
217	xsyslog(b, priority, pp);
218
219	OPENSSL_free(buf);
220	return(ret);
221	}
222
223static long MS_CALLBACK slg_ctrl(BIO *b, int cmd, long num, void *ptr)
224	{
225	switch (cmd)
226		{
227	case BIO_CTRL_SET:
228		xcloselog(b);
229		xopenlog(b, ptr, num);
230		break;
231	default:
232		break;
233		}
234	return(0);
235	}
236
237static int MS_CALLBACK slg_puts(BIO *bp, const char *str)
238	{
239	int n,ret;
240
241	n=strlen(str);
242	ret=slg_write(bp,str,n);
243	return(ret);
244	}
245
246#if defined(OPENSSL_SYS_WIN32)
247
248static void xopenlog(BIO* bp, char* name, int level)
249{
250	if ( !register_event_source )
251		{
252		HANDLE	advapi;
253		if ( !(advapi = GetModuleHandle("advapi32")) )
254			return;
255		register_event_source = (HANDLE (WINAPI *)())DL_PROC_X(advapi,
256			"RegisterEventSource" );
257		deregister_event_source = (BOOL (WINAPI *)())DL_PROC(advapi,
258			"DeregisterEventSource");
259		report_event = (BOOL (WINAPI *)())DL_PROC_X(advapi,
260			"ReportEvent" );
261		if ( !(register_event_source && deregister_event_source &&
262				report_event) )
263			{
264			register_event_source = NULL;
265			deregister_event_source = NULL;
266			report_event = NULL;
267			return;
268			}
269		}
270	bp->ptr= (char *)register_event_source(NULL, name);
271}
272
273static void xsyslog(BIO *bp, int priority, const char *string)
274{
275	LPCSTR lpszStrings[2];
276	WORD evtype= EVENTLOG_ERROR_TYPE;
277	int pid = _getpid();
278	char pidbuf[DECIMAL_SIZE(pid)+4];
279
280	switch (priority)
281		{
282	case LOG_EMERG:
283	case LOG_ALERT:
284	case LOG_CRIT:
285	case LOG_ERR:
286		evtype = EVENTLOG_ERROR_TYPE;
287		break;
288	case LOG_WARNING:
289		evtype = EVENTLOG_WARNING_TYPE;
290		break;
291	case LOG_NOTICE:
292	case LOG_INFO:
293	case LOG_DEBUG:
294		evtype = EVENTLOG_INFORMATION_TYPE;
295		break;
296	default:		/* Should never happen, but set it
297				   as error anyway. */
298		evtype = EVENTLOG_ERROR_TYPE;
299		break;
300		}
301
302	sprintf(pidbuf, "[%d] ", pid);
303	lpszStrings[0] = pidbuf;
304	lpszStrings[1] = string;
305
306	if(report_event && bp->ptr)
307		report_event(bp->ptr, evtype, 0, 1024, NULL, 2, 0,
308				lpszStrings, NULL);
309}
310
311static void xcloselog(BIO* bp)
312{
313	if(deregister_event_source && bp->ptr)
314		deregister_event_source((HANDLE)(bp->ptr));
315	bp->ptr= NULL;
316}
317
318#elif defined(OPENSSL_SYS_VMS)
319
320static int VMS_OPC_target = LOG_DAEMON;
321
322static void xopenlog(BIO* bp, char* name, int level)
323{
324	VMS_OPC_target = level;
325}
326
327static void xsyslog(BIO *bp, int priority, const char *string)
328{
329	struct dsc$descriptor_s opc_dsc;
330	struct opcdef *opcdef_p;
331	char buf[10240];
332	unsigned int len;
333        struct dsc$descriptor_s buf_dsc;
334	$DESCRIPTOR(fao_cmd, "!AZ: !AZ");
335	char *priority_tag;
336
337	switch (priority)
338	  {
339	  case LOG_EMERG: priority_tag = "Emergency"; break;
340	  case LOG_ALERT: priority_tag = "Alert"; break;
341	  case LOG_CRIT: priority_tag = "Critical"; break;
342	  case LOG_ERR: priority_tag = "Error"; break;
343	  case LOG_WARNING: priority_tag = "Warning"; break;
344	  case LOG_NOTICE: priority_tag = "Notice"; break;
345	  case LOG_INFO: priority_tag = "Info"; break;
346	  case LOG_DEBUG: priority_tag = "DEBUG"; break;
347	  }
348
349	buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
350	buf_dsc.dsc$b_class = DSC$K_CLASS_S;
351	buf_dsc.dsc$a_pointer = buf;
352	buf_dsc.dsc$w_length = sizeof(buf) - 1;
353
354	lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string);
355
356	/* we know there's an 8 byte header.  That's documented */
357	opcdef_p = (struct opcdef *) OPENSSL_malloc(8 + len);
358	opcdef_p->opc$b_ms_type = OPC$_RQ_RQST;
359	memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3);
360	opcdef_p->opc$l_ms_rqstid = 0;
361	memcpy(&opcdef_p->opc$l_ms_text, buf, len);
362
363	opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
364	opc_dsc.dsc$b_class = DSC$K_CLASS_S;
365	opc_dsc.dsc$a_pointer = (char *)opcdef_p;
366	opc_dsc.dsc$w_length = len + 8;
367
368	sys$sndopr(opc_dsc, 0);
369
370	OPENSSL_free(opcdef_p);
371}
372
373static void xcloselog(BIO* bp)
374{
375}
376
377#else /* Unix/Watt32 */
378
379static void xopenlog(BIO* bp, char* name, int level)
380{
381#ifdef WATT32   /* djgpp/DOS */
382	openlog(name, LOG_PID|LOG_CONS|LOG_NDELAY, level);
383#else
384	openlog(name, LOG_PID|LOG_CONS, level);
385#endif
386}
387
388static void xsyslog(BIO *bp, int priority, const char *string)
389{
390	syslog(priority, "%s", string);
391}
392
393static void xcloselog(BIO* bp)
394{
395	closelog();
396}
397
398#endif /* Unix */
399
400#endif /* NO_SYSLOG */
401