bss_log.c revision 160815 
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$routines.h>
78#  include <starlet.h>
79#elif defined(__ultrix)
80#  include <sys/syslog.h>
81#elif defined(OPENSSL_SYS_NETWARE)
82#  define NO_SYSLOG
83#elif (!defined(MSDOS) || defined(WATT32)) && !defined(OPENSSL_SYS_VXWORKS) && !defined(NO_SYSLOG)
84#  include <syslog.h>
85#endif
86
87#include <openssl/buffer.h>
88#include <openssl/err.h>
89
90#ifndef NO_SYSLOG
91
92#if defined(OPENSSL_SYS_WIN32)
93#define LOG_EMERG	0
94#define LOG_ALERT	1
95#define LOG_CRIT	2
96#define LOG_ERR		3
97#define LOG_WARNING	4
98#define LOG_NOTICE	5
99#define LOG_INFO	6
100#define LOG_DEBUG	7
101
102#define LOG_DAEMON	(3<<3)
103#elif defined(OPENSSL_SYS_VMS)
104/* On VMS, we don't really care about these, but we need them to compile */
105#define LOG_EMERG	0
106#define LOG_ALERT	1
107#define LOG_CRIT	2
108#define LOG_ERR		3
109#define LOG_WARNING	4
110#define LOG_NOTICE	5
111#define LOG_INFO	6
112#define LOG_DEBUG	7
113
114#define LOG_DAEMON	OPC$M_NM_NTWORK
115#endif
116
117static int MS_CALLBACK slg_write(BIO *h, const char *buf, int num);
118static int MS_CALLBACK slg_puts(BIO *h, const char *str);
119static long MS_CALLBACK slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);
120static int MS_CALLBACK slg_new(BIO *h);
121static int MS_CALLBACK slg_free(BIO *data);
122static void xopenlog(BIO* bp, char* name, int level);
123static void xsyslog(BIO* bp, int priority, const char* string);
124static void xcloselog(BIO* bp);
125#ifdef OPENSSL_SYS_WIN32
126LONG	(WINAPI *go_for_advapi)()	= RegOpenKeyEx;
127HANDLE	(WINAPI *register_event_source)()	= NULL;
128BOOL	(WINAPI *deregister_event_source)()	= NULL;
129BOOL	(WINAPI *report_event)()	= NULL;
130#define DL_PROC(m,f)	(GetProcAddress( m, f ))
131#ifdef UNICODE
132#define DL_PROC_X(m,f) DL_PROC( m, f "W" )
133#else
134#define DL_PROC_X(m,f) DL_PROC( m, f "A" )
135#endif
136#endif
137
138static BIO_METHOD methods_slg=
139	{
140	BIO_TYPE_MEM,"syslog",
141	slg_write,
142	NULL,
143	slg_puts,
144	NULL,
145	slg_ctrl,
146	slg_new,
147	slg_free,
148	NULL,
149	};
150
151BIO_METHOD *BIO_s_log(void)
152	{
153	return(&methods_slg);
154	}
155
156static int MS_CALLBACK slg_new(BIO *bi)
157	{
158	bi->init=1;
159	bi->num=0;
160	bi->ptr=NULL;
161	xopenlog(bi, "application", LOG_DAEMON);
162	return(1);
163	}
164
165static int MS_CALLBACK slg_free(BIO *a)
166	{
167	if (a == NULL) return(0);
168	xcloselog(a);
169	return(1);
170	}
171
172static int MS_CALLBACK slg_write(BIO *b, const char *in, int inl)
173	{
174	int ret= inl;
175	char* buf;
176	char* pp;
177	int priority, i;
178	static struct
179		{
180		int strl;
181		char str[10];
182		int log_level;
183		}
184	mapping[] =
185		{
186		{ 6, "PANIC ", LOG_EMERG },
187		{ 6, "EMERG ", LOG_EMERG },
188		{ 4, "EMR ", LOG_EMERG },
189		{ 6, "ALERT ", LOG_ALERT },
190		{ 4, "ALR ", LOG_ALERT },
191		{ 5, "CRIT ", LOG_CRIT },
192		{ 4, "CRI ", LOG_CRIT },
193		{ 6, "ERROR ", LOG_ERR },
194		{ 4, "ERR ", LOG_ERR },
195		{ 8, "WARNING ", LOG_WARNING },
196		{ 5, "WARN ", LOG_WARNING },
197		{ 4, "WAR ", LOG_WARNING },
198		{ 7, "NOTICE ", LOG_NOTICE },
199		{ 5, "NOTE ", LOG_NOTICE },
200		{ 4, "NOT ", LOG_NOTICE },
201		{ 5, "INFO ", LOG_INFO },
202		{ 4, "INF ", LOG_INFO },
203		{ 6, "DEBUG ", LOG_DEBUG },
204		{ 4, "DBG ", LOG_DEBUG },
205		{ 0, "", LOG_ERR } /* The default */
206		};
207
208	if((buf= (char *)OPENSSL_malloc(inl+ 1)) == NULL){
209		return(0);
210	}
211	strncpy(buf, in, inl);
212	buf[inl]= '\0';
213
214	i = 0;
215	while(strncmp(buf, mapping[i].str, mapping[i].strl) != 0) i++;
216	priority = mapping[i].log_level;
217	pp = buf + mapping[i].strl;
218
219	xsyslog(b, priority, pp);
220
221	OPENSSL_free(buf);
222	return(ret);
223	}
224
225static long MS_CALLBACK slg_ctrl(BIO *b, int cmd, long num, void *ptr)
226	{
227	switch (cmd)
228		{
229	case BIO_CTRL_SET:
230		xcloselog(b);
231		xopenlog(b, ptr, num);
232		break;
233	default:
234		break;
235		}
236	return(0);
237	}
238
239static int MS_CALLBACK slg_puts(BIO *bp, const char *str)
240	{
241	int n,ret;
242
243	n=strlen(str);
244	ret=slg_write(bp,str,n);
245	return(ret);
246	}
247
248#if defined(OPENSSL_SYS_WIN32)
249
250static void xopenlog(BIO* bp, char* name, int level)
251{
252	if ( !register_event_source )
253		{
254		HANDLE	advapi;
255		if ( !(advapi = GetModuleHandle("advapi32")) )
256			return;
257		register_event_source = (HANDLE (WINAPI *)())DL_PROC_X(advapi,
258			"RegisterEventSource" );
259		deregister_event_source = (BOOL (WINAPI *)())DL_PROC(advapi,
260			"DeregisterEventSource");
261		report_event = (BOOL (WINAPI *)())DL_PROC_X(advapi,
262			"ReportEvent" );
263		if ( !(register_event_source && deregister_event_source &&
264				report_event) )
265			{
266			register_event_source = NULL;
267			deregister_event_source = NULL;
268			report_event = NULL;
269			return;
270			}
271		}
272	bp->ptr= (char *)register_event_source(NULL, name);
273}
274
275static void xsyslog(BIO *bp, int priority, const char *string)
276{
277	LPCSTR lpszStrings[2];
278	WORD evtype= EVENTLOG_ERROR_TYPE;
279	int pid = _getpid();
280	char pidbuf[DECIMAL_SIZE(pid)+4];
281
282	switch (priority)
283		{
284	case LOG_EMERG:
285	case LOG_ALERT:
286	case LOG_CRIT:
287	case LOG_ERR:
288		evtype = EVENTLOG_ERROR_TYPE;
289		break;
290	case LOG_WARNING:
291		evtype = EVENTLOG_WARNING_TYPE;
292		break;
293	case LOG_NOTICE:
294	case LOG_INFO:
295	case LOG_DEBUG:
296		evtype = EVENTLOG_INFORMATION_TYPE;
297		break;
298	default:		/* Should never happen, but set it
299				   as error anyway. */
300		evtype = EVENTLOG_ERROR_TYPE;
301		break;
302		}
303
304	sprintf(pidbuf, "[%d] ", pid);
305	lpszStrings[0] = pidbuf;
306	lpszStrings[1] = string;
307
308	if(report_event && bp->ptr)
309		report_event(bp->ptr, evtype, 0, 1024, NULL, 2, 0,
310				lpszStrings, NULL);
311}
312
313static void xcloselog(BIO* bp)
314{
315	if(deregister_event_source && bp->ptr)
316		deregister_event_source((HANDLE)(bp->ptr));
317	bp->ptr= NULL;
318}
319
320#elif defined(OPENSSL_SYS_VMS)
321
322static int VMS_OPC_target = LOG_DAEMON;
323
324static void xopenlog(BIO* bp, char* name, int level)
325{
326	VMS_OPC_target = level;
327}
328
329static void xsyslog(BIO *bp, int priority, const char *string)
330{
331	struct dsc$descriptor_s opc_dsc;
332	struct opcdef *opcdef_p;
333	char buf[10240];
334	unsigned int len;
335        struct dsc$descriptor_s buf_dsc;
336	$DESCRIPTOR(fao_cmd, "!AZ: !AZ");
337	char *priority_tag;
338
339	switch (priority)
340	  {
341	  case LOG_EMERG: priority_tag = "Emergency"; break;
342	  case LOG_ALERT: priority_tag = "Alert"; break;
343	  case LOG_CRIT: priority_tag = "Critical"; break;
344	  case LOG_ERR: priority_tag = "Error"; break;
345	  case LOG_WARNING: priority_tag = "Warning"; break;
346	  case LOG_NOTICE: priority_tag = "Notice"; break;
347	  case LOG_INFO: priority_tag = "Info"; break;
348	  case LOG_DEBUG: priority_tag = "DEBUG"; break;
349	  }
350
351	buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
352	buf_dsc.dsc$b_class = DSC$K_CLASS_S;
353	buf_dsc.dsc$a_pointer = buf;
354	buf_dsc.dsc$w_length = sizeof(buf) - 1;
355
356	lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string);
357
358	/* we know there's an 8 byte header.  That's documented */
359	opcdef_p = (struct opcdef *) OPENSSL_malloc(8 + len);
360	opcdef_p->opc$b_ms_type = OPC$_RQ_RQST;
361	memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3);
362	opcdef_p->opc$l_ms_rqstid = 0;
363	memcpy(&opcdef_p->opc$l_ms_text, buf, len);
364
365	opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
366	opc_dsc.dsc$b_class = DSC$K_CLASS_S;
367	opc_dsc.dsc$a_pointer = (char *)opcdef_p;
368	opc_dsc.dsc$w_length = len + 8;
369
370	sys$sndopr(opc_dsc, 0);
371
372	OPENSSL_free(opcdef_p);
373}
374
375static void xcloselog(BIO* bp)
376{
377}
378
379#else /* Unix/Watt32 */
380
381static void xopenlog(BIO* bp, char* name, int level)
382{
383#ifdef WATT32   /* djgpp/DOS */
384	openlog(name, LOG_PID|LOG_CONS|LOG_NDELAY, level);
385#else
386	openlog(name, LOG_PID|LOG_CONS, level);
387#endif
388}
389
390static void xsyslog(BIO *bp, int priority, const char *string)
391{
392	syslog(priority, "%s", string);
393}
394
395static void xcloselog(BIO* bp)
396{
397	closelog();
398}
399
400#endif /* Unix */
401
402#endif /* NO_SYSLOG */
403