bss_log.c revision 296465 
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). It is
60 * one-way BIO, it sends all stuff to syslogd (on system that commonly use
61 * that), or event log (on NT), or OPCOM (on OpenVMS).
62 *
63 */
64
65#include <stdio.h>
66#include <errno.h>
67
68#include "cryptlib.h"
69
70#if defined(OPENSSL_SYS_WINCE)
71#elif defined(OPENSSL_SYS_WIN32)
72# include <process.h>
73#elif defined(OPENSSL_SYS_VMS)
74# include <opcdef.h>
75# include <descrip.h>
76# include <lib$routines.h>
77# include <starlet.h>
78#elif defined(__ultrix)
79# include <sys/syslog.h>
80#elif defined(OPENSSL_SYS_NETWARE)
81# define NO_SYSLOG
82#elif (!defined(MSDOS) || defined(WATT32)) && !defined(OPENSSL_SYS_VXWORKS) && !defined(NO_SYSLOG)
83# include <syslog.h>
84#endif
85
86#include <openssl/buffer.h>
87#include <openssl/err.h>
88
89#ifndef NO_SYSLOG
90
91# if defined(OPENSSL_SYS_WIN32)
92#  define LOG_EMERG       0
93#  define LOG_ALERT       1
94#  define LOG_CRIT        2
95#  define LOG_ERR         3
96#  define LOG_WARNING     4
97#  define LOG_NOTICE      5
98#  define LOG_INFO        6
99#  define LOG_DEBUG       7
100
101#  define LOG_DAEMON      (3<<3)
102# elif defined(OPENSSL_SYS_VMS)
103/* On VMS, we don't really care about these, but we need them to compile */
104#  define LOG_EMERG       0
105#  define LOG_ALERT       1
106#  define LOG_CRIT        2
107#  define LOG_ERR         3
108#  define LOG_WARNING     4
109#  define LOG_NOTICE      5
110#  define LOG_INFO        6
111#  define LOG_DEBUG       7
112
113#  define LOG_DAEMON      OPC$M_NM_NTWORK
114# endif
115
116static int MS_CALLBACK slg_write(BIO *h, const char *buf, int num);
117static int MS_CALLBACK slg_puts(BIO *h, const char *str);
118static long MS_CALLBACK slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);
119static int MS_CALLBACK slg_new(BIO *h);
120static int MS_CALLBACK slg_free(BIO *data);
121static void xopenlog(BIO *bp, char *name, int level);
122static void xsyslog(BIO *bp, int priority, const char *string);
123static void xcloselog(BIO *bp);
124# ifdef OPENSSL_SYS_WIN32
125LONG(WINAPI *go_for_advapi) () = RegOpenKeyEx;
126HANDLE(WINAPI *register_event_source) () = NULL;
127BOOL(WINAPI *deregister_event_source) () = NULL;
128BOOL(WINAPI *report_event) () = NULL;
129#  define DL_PROC(m,f)    (GetProcAddress( m, f ))
130#  ifdef UNICODE
131#   define DL_PROC_X(m,f) DL_PROC( m, f "W" )
132#  else
133#   define DL_PROC_X(m,f) DL_PROC( m, f "A" )
134#  endif
135# endif
136
137static BIO_METHOD methods_slg = {
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)
166        return (0);
167    xcloselog(a);
168    return (1);
169}
170
171static int MS_CALLBACK slg_write(BIO *b, const char *in, int inl)
172{
173    int ret = inl;
174    char *buf;
175    char *pp;
176    int priority, i;
177    static struct {
178        int strl;
179        char str[10];
180        int log_level;
181    } mapping[] = {
182        {
183            6, "PANIC ", LOG_EMERG
184        },
185        {
186            6, "EMERG ", LOG_EMERG
187        },
188        {
189            4, "EMR ", LOG_EMERG
190        },
191        {
192            6, "ALERT ", LOG_ALERT
193        },
194        {
195            4, "ALR ", LOG_ALERT
196        },
197        {
198            5, "CRIT ", LOG_CRIT
199        },
200        {
201            4, "CRI ", LOG_CRIT
202        },
203        {
204            6, "ERROR ", LOG_ERR
205        },
206        {
207            4, "ERR ", LOG_ERR
208        },
209        {
210            8, "WARNING ", LOG_WARNING
211        },
212        {
213            5, "WARN ", LOG_WARNING
214        },
215        {
216            4, "WAR ", LOG_WARNING
217        },
218        {
219            7, "NOTICE ", LOG_NOTICE
220        },
221        {
222            5, "NOTE ", LOG_NOTICE
223        },
224        {
225            4, "NOT ", LOG_NOTICE
226        },
227        {
228            5, "INFO ", LOG_INFO
229        },
230        {
231            4, "INF ", LOG_INFO
232        },
233        {
234            6, "DEBUG ", LOG_DEBUG
235        },
236        {
237            4, "DBG ", LOG_DEBUG
238        },
239        {
240            0, "", LOG_ERR
241        }
242        /* The default */
243    };
244
245    if ((buf = (char *)OPENSSL_malloc(inl + 1)) == NULL) {
246        return (0);
247    }
248    strncpy(buf, in, inl);
249    buf[inl] = '\0';
250
251    i = 0;
252    while (strncmp(buf, mapping[i].str, mapping[i].strl) != 0)
253        i++;
254    priority = mapping[i].log_level;
255    pp = buf + mapping[i].strl;
256
257    xsyslog(b, priority, pp);
258
259    OPENSSL_free(buf);
260    return (ret);
261}
262
263static long MS_CALLBACK slg_ctrl(BIO *b, int cmd, long num, void *ptr)
264{
265    switch (cmd) {
266    case BIO_CTRL_SET:
267        xcloselog(b);
268        xopenlog(b, ptr, num);
269        break;
270    default:
271        break;
272    }
273    return (0);
274}
275
276static int MS_CALLBACK slg_puts(BIO *bp, const char *str)
277{
278    int n, ret;
279
280    n = strlen(str);
281    ret = slg_write(bp, str, n);
282    return (ret);
283}
284
285# if defined(OPENSSL_SYS_WIN32)
286
287static void xopenlog(BIO *bp, char *name, int level)
288{
289    if (!register_event_source) {
290        HANDLE advapi;
291        if (!(advapi = GetModuleHandle("advapi32")))
292            return;
293        register_event_source = (HANDLE(WINAPI *)())DL_PROC_X(advapi,
294                                                              "RegisterEventSource");
295        deregister_event_source = (BOOL(WINAPI *)()) DL_PROC(advapi,
296                                                             "DeregisterEventSource");
297        report_event = (BOOL(WINAPI *)()) DL_PROC_X(advapi, "ReportEvent");
298        if (!(register_event_source && deregister_event_source &&
299              report_event)) {
300            register_event_source = NULL;
301            deregister_event_source = NULL;
302            report_event = NULL;
303            return;
304        }
305    }
306    bp->ptr = (char *)register_event_source(NULL, name);
307}
308
309static void xsyslog(BIO *bp, int priority, const char *string)
310{
311    LPCSTR lpszStrings[2];
312    WORD evtype = EVENTLOG_ERROR_TYPE;
313    int pid = _getpid();
314    char pidbuf[DECIMAL_SIZE(pid) + 4];
315
316    switch (priority) {
317    case LOG_EMERG:
318    case LOG_ALERT:
319    case LOG_CRIT:
320    case LOG_ERR:
321        evtype = EVENTLOG_ERROR_TYPE;
322        break;
323    case LOG_WARNING:
324        evtype = EVENTLOG_WARNING_TYPE;
325        break;
326    case LOG_NOTICE:
327    case LOG_INFO:
328    case LOG_DEBUG:
329        evtype = EVENTLOG_INFORMATION_TYPE;
330        break;
331    default:
332        /*
333         * Should never happen, but set it
334         * as error anyway.
335         */
336        evtype = EVENTLOG_ERROR_TYPE;
337        break;
338    }
339
340    sprintf(pidbuf, "[%d] ", pid);
341    lpszStrings[0] = pidbuf;
342    lpszStrings[1] = string;
343
344    if (report_event && bp->ptr)
345        report_event(bp->ptr, evtype, 0, 1024, NULL, 2, 0, lpszStrings, NULL);
346}
347
348static void xcloselog(BIO *bp)
349{
350    if (deregister_event_source && bp->ptr)
351        deregister_event_source((HANDLE) (bp->ptr));
352    bp->ptr = NULL;
353}
354
355# elif defined(OPENSSL_SYS_VMS)
356
357static int VMS_OPC_target = LOG_DAEMON;
358
359static void xopenlog(BIO *bp, char *name, int level)
360{
361    VMS_OPC_target = level;
362}
363
364static void xsyslog(BIO *bp, int priority, const char *string)
365{
366    struct dsc$descriptor_s opc_dsc;
367    struct opcdef *opcdef_p;
368    char buf[10240];
369    unsigned int len;
370    struct dsc$descriptor_s buf_dsc;
371    $DESCRIPTOR(fao_cmd, "!AZ: !AZ");
372    char *priority_tag;
373
374    switch (priority) {
375    case LOG_EMERG:
376        priority_tag = "Emergency";
377        break;
378    case LOG_ALERT:
379        priority_tag = "Alert";
380        break;
381    case LOG_CRIT:
382        priority_tag = "Critical";
383        break;
384    case LOG_ERR:
385        priority_tag = "Error";
386        break;
387    case LOG_WARNING:
388        priority_tag = "Warning";
389        break;
390    case LOG_NOTICE:
391        priority_tag = "Notice";
392        break;
393    case LOG_INFO:
394        priority_tag = "Info";
395        break;
396    case LOG_DEBUG:
397        priority_tag = "DEBUG";
398        break;
399    }
400
401    buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
402    buf_dsc.dsc$b_class = DSC$K_CLASS_S;
403    buf_dsc.dsc$a_pointer = buf;
404    buf_dsc.dsc$w_length = sizeof(buf) - 1;
405
406    lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string);
407
408    /* we know there's an 8 byte header.  That's documented */
409    opcdef_p = (struct opcdef *)OPENSSL_malloc(8 + len);
410    opcdef_p->opc$b_ms_type = OPC$_RQ_RQST;
411    memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3);
412    opcdef_p->opc$l_ms_rqstid = 0;
413    memcpy(&opcdef_p->opc$l_ms_text, buf, len);
414
415    opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
416    opc_dsc.dsc$b_class = DSC$K_CLASS_S;
417    opc_dsc.dsc$a_pointer = (char *)opcdef_p;
418    opc_dsc.dsc$w_length = len + 8;
419
420    sys$sndopr(opc_dsc, 0);
421
422    OPENSSL_free(opcdef_p);
423}
424
425static void xcloselog(BIO *bp)
426{
427}
428
429# else                          /* Unix/Watt32 */
430
431static void xopenlog(BIO *bp, char *name, int level)
432{
433#  ifdef WATT32                 /* djgpp/DOS */
434    openlog(name, LOG_PID | LOG_CONS | LOG_NDELAY, level);
435#  else
436    openlog(name, LOG_PID | LOG_CONS, level);
437#  endif
438}
439
440static void xsyslog(BIO *bp, int priority, const char *string)
441{
442    syslog(priority, "%s", string);
443}
444
445static void xcloselog(BIO *bp)
446{
447    closelog();
448}
449
450# endif                         /* Unix */
451
452#endif                          /* NO_SYSLOG */
453