crypto/bio/bss_log.c

   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_WIN32)
  72 #  include <process.h>
  73 #elif defined(OPENSSL_SYS_VMS)
  74 #  include <opcdef.h>
  75 #  include <descrip.h>
  76 #  include <lib$routines.h>
  77 #  include <starlet.h>
  78 #elif defined(__ultrix)
  79 #  include <sys/syslog.h>
  80 #elif !defined(MSDOS) && !defined(OPENSSL_SYS_VXWORKS) && !defined(NO_SYSLOG) /* Unix */
  81 #  include <syslog.h>
  82 #endif
  83
  84 #include <openssl/buffer.h>
  85 #include <openssl/err.h>
  86
  87 #ifndef NO_SYSLOG
  88
  89 #if defined(OPENSSL_SYS_WIN32)
  90 #define LOG_EMERG       0
  91 #define LOG_ALERT       1
  92 #define LOG_CRIT        2
  93 #define LOG_ERR         3
  94 #define LOG_WARNING     4
  95 #define LOG_NOTICE      5
  96 #define LOG_INFO        6
  97 #define LOG_DEBUG       7
  98
  99 #define LOG_DAEMON      (3<<3)
 100 #elif defined(OPENSSL_SYS_VMS)
 101 /* On VMS, we don't really care about these, but we need them to compile */
 102 #define LOG_EMERG       0
 103 #define LOG_ALERT       1
 104 #define LOG_CRIT        2
 105 #define LOG_ERR         3
 106 #define LOG_WARNING     4
 107 #define LOG_NOTICE      5
 108 #define LOG_INFO        6
 109 #define LOG_DEBUG       7
 110
 111 #define LOG_DAEMON      OPC$M_NM_NTWORK
 112 #endif
 113
 114 static int MS_CALLBACK slg_write(BIO *h, const char *buf, int num);
 115 static int MS_CALLBACK slg_puts(BIO *h, const char *str);
 116 static long MS_CALLBACK slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);
 117 static int MS_CALLBACK slg_new(BIO *h);
 118 static int MS_CALLBACK slg_free(BIO *data);
 119 static void xopenlog(BIO* bp, char* name, int level);
 120 static void xsyslog(BIO* bp, int priority, const char* string);
 121 static void xcloselog(BIO* bp);
 122 #ifdef OPENSSL_SYS_WIN32
 123 LONG    (WINAPI *go_for_advapi)()       = RegOpenKeyEx;
 124 HANDLE  (WINAPI *register_event_source)()       = NULL;
 125 BOOL    (WINAPI *deregister_event_source)()     = NULL;
 126 BOOL    (WINAPI *report_event)()        = NULL;
 127 #define DL_PROC(m,f)    (GetProcAddress( m, f ))
 128 #ifdef UNICODE
 129 #define DL_PROC_X(m,f) DL_PROC( m, f "W" )
 130 #else
 131 #define DL_PROC_X(m,f) DL_PROC( m, f "A" )
 132 #endif
 133 #endif
 134
 135 static BIO_METHOD methods_slg=
 136         {
 137         BIO_TYPE_MEM,"syslog",
 138         slg_write,
 139         NULL,
 140         slg_puts,
 141         NULL,
 142         slg_ctrl,
 143         slg_new,
 144         slg_free,
 145         NULL,
 146         };
 147
 148 BIO_METHOD *BIO_s_log(void)
 149         {
 150         return(&methods_slg);
 151         }
 152
 153 static int MS_CALLBACK slg_new(BIO *bi)
 154         {
 155         bi->init=1;
 156         bi->num=0;
 157         bi->ptr=NULL;
 158         xopenlog(bi, "application", LOG_DAEMON);
 159         return(1);
 160         }
 161
 162 static int MS_CALLBACK slg_free(BIO *a)
 163         {
 164         if (a == NULL) return(0);
 165         xcloselog(a);
 166         return(1);
 167         }
 168
 169 static int MS_CALLBACK slg_write(BIO *b, const char *in, int inl)
 170         {
 171         int ret= inl;
 172         char* buf;
 173         char* pp;
 174         int priority, i;
 175         static struct
 176                 {
 177                 int strl;
 178                 char str[10];
 179                 int log_level;
 180                 }
 181         mapping[] =
 182                 {
 183                 { 6, "PANIC ", LOG_EMERG },
 184                 { 6, "EMERG ", LOG_EMERG },
 185                 { 4, "EMR ", LOG_EMERG },
 186                 { 6, "ALERT ", LOG_ALERT },
 187                 { 4, "ALR ", LOG_ALERT },
 188                 { 5, "CRIT ", LOG_CRIT },
 189                 { 4, "CRI ", LOG_CRIT },
 190                 { 6, "ERROR ", LOG_ERR },
 191                 { 4, "ERR ", LOG_ERR },
 192                 { 8, "WARNING ", LOG_WARNING },
 193                 { 5, "WARN ", LOG_WARNING },
 194                 { 4, "WAR ", LOG_WARNING },
 195                 { 7, "NOTICE ", LOG_NOTICE },
 196                 { 5, "NOTE ", LOG_NOTICE },
 197                 { 4, "NOT ", LOG_NOTICE },
 198                 { 5, "INFO ", LOG_INFO },
 199                 { 4, "INF ", LOG_INFO },
 200                 { 6, "DEBUG ", LOG_DEBUG },
 201                 { 4, "DBG ", LOG_DEBUG },
 202                 { 0, "", LOG_ERR } /* The default */
 203                 };
 204
 205         if((buf= (char *)OPENSSL_malloc(inl+ 1)) == NULL){
 206                 return(0);
 207         }
 208         strncpy(buf, in, inl);
 209         buf[inl]= '\0';
 210
 211         i = 0;
 212         while(strncmp(buf, mapping[i].str, mapping[i].strl) != 0) i++;
 213         priority = mapping[i].log_level;
 214         pp = buf + mapping[i].strl;
 215
 216         xsyslog(b, priority, pp);
 217
 218         OPENSSL_free(buf);
 219         return(ret);
 220         }
 221
 222 static long MS_CALLBACK slg_ctrl(BIO *b, int cmd, long num, void *ptr)
 223         {
 224         switch (cmd)
 225                 {
 226         case BIO_CTRL_SET:
 227                 xcloselog(b);
 228                 xopenlog(b, ptr, num);
 229                 break;
 230         default:
 231                 break;
 232                 }
 233         return(0);
 234         }
 235
 236 static int MS_CALLBACK slg_puts(BIO *bp, const char *str)
 237         {
 238         int n,ret;
 239
 240         n=strlen(str);
 241         ret=slg_write(bp,str,n);
 242         return(ret);
 243         }
 244
 245 #if defined(OPENSSL_SYS_WIN32)
 246
 247 static void xopenlog(BIO* bp, char* name, int level)
 248 {
 249         if ( !register_event_source )
 250                 {
 251                 HANDLE  advapi;
 252                 if ( !(advapi = GetModuleHandle("advapi32")) )
 253                         return;
 254                 register_event_source = (HANDLE (WINAPI *)())DL_PROC_X(advapi,
 255                         "RegisterEventSource" );
 256                 deregister_event_source = (BOOL (WINAPI *)())DL_PROC(advapi,
 257                         "DeregisterEventSource");
 258                 report_event = (BOOL (WINAPI *)())DL_PROC_X(advapi,
 259                         "ReportEvent" );
 260                 if ( !(register_event_source && deregister_event_source &&
 261                                 report_event) )
 262                         {
 263                         register_event_source = NULL;
 264                         deregister_event_source = NULL;
 265                         report_event = NULL;
 266                         return;
 267                         }
 268                 }
 269         bp->ptr= (char *)register_event_source(NULL, name);
 270 }
 271
 272 static void xsyslog(BIO *bp, int priority, const char *string)
 273 {
 274         LPCSTR lpszStrings[2];
 275         WORD evtype= EVENTLOG_ERROR_TYPE;
 276         int pid = _getpid();
 277         char pidbuf[DECIMAL_SIZE(pid)+4];
 278
 279         switch (priority)
 280                 {
 281         case LOG_EMERG:
 282         case LOG_ALERT:
 283         case LOG_CRIT:
 284         case LOG_ERR:
 285                 evtype = EVENTLOG_ERROR_TYPE;
 286                 break;
 287         case LOG_WARNING:
 288                 evtype = EVENTLOG_WARNING_TYPE;
 289                 break;
 290         case LOG_NOTICE:
 291         case LOG_INFO:
 292         case LOG_DEBUG:
 293                 evtype = EVENTLOG_INFORMATION_TYPE;
 294                 break;
 295         default:                /* Should never happen, but set it
 296                                    as error anyway. */
 297                 evtype = EVENTLOG_ERROR_TYPE;
 298                 break;
 299                 }
 300
 301         sprintf(pidbuf, "[%d] ", pid);
 302         lpszStrings[0] = pidbuf;
 303         lpszStrings[1] = string;
 304
 305         if(report_event && bp->ptr)
 306                 report_event(bp->ptr, evtype, 0, 1024, NULL, 2, 0,
 307                                 lpszStrings, NULL);
 308 }
 309
 310 static void xcloselog(BIO* bp)
 311 {
 312         if(deregister_event_source && bp->ptr)
 313                 deregister_event_source((HANDLE)(bp->ptr));
 314         bp->ptr= NULL;
 315 }
 316
 317 #elif defined(OPENSSL_SYS_VMS)
 318
 319 static int VMS_OPC_target = LOG_DAEMON;
 320
 321 static void xopenlog(BIO* bp, char* name, int level)
 322 {
 323         VMS_OPC_target = level;
 324 }
 325
 326 static void xsyslog(BIO *bp, int priority, const char *string)
 327 {
 328         struct dsc$descriptor_s opc_dsc;
 329         struct opcdef *opcdef_p;
 330         char buf[10240];
 331         unsigned int len;
 332         struct dsc$descriptor_s buf_dsc;
 333         $DESCRIPTOR(fao_cmd, "!AZ: !AZ");
 334         char *priority_tag;
 335
 336         switch (priority)
 337           {
 338           case LOG_EMERG: priority_tag = "Emergency"; break;
 339           case LOG_ALERT: priority_tag = "Alert"; break;
 340           case LOG_CRIT: priority_tag = "Critical"; break;
 341           case LOG_ERR: priority_tag = "Error"; break;
 342           case LOG_WARNING: priority_tag = "Warning"; break;
 343           case LOG_NOTICE: priority_tag = "Notice"; break;
 344           case LOG_INFO: priority_tag = "Info"; break;
 345           case LOG_DEBUG: priority_tag = "DEBUG"; break;
 346           }
 347
 348         buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
 349         buf_dsc.dsc$b_class = DSC$K_CLASS_S;
 350         buf_dsc.dsc$a_pointer = buf;
 351         buf_dsc.dsc$w_length = sizeof(buf) - 1;
 352
 353         lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string);
 354
 355         /* we know there's an 8 byte header.  That's documented */
 356         opcdef_p = (struct opcdef *) OPENSSL_malloc(8 + len);
 357         opcdef_p->opc$b_ms_type = OPC$_RQ_RQST;
 358         memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3);
 359         opcdef_p->opc$l_ms_rqstid = 0;
 360         memcpy(&opcdef_p->opc$l_ms_text, buf, len);
 361
 362         opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
 363         opc_dsc.dsc$b_class = DSC$K_CLASS_S;
 364         opc_dsc.dsc$a_pointer = (char *)opcdef_p;
 365         opc_dsc.dsc$w_length = len + 8;
 366
 367         sys$sndopr(opc_dsc, 0);
 368
 369         OPENSSL_free(opcdef_p);
 370 }
 371
 372 static void xcloselog(BIO* bp)
 373 {
 374 }
 375
 376 #else /* Unix */
 377
 378 static void xopenlog(BIO* bp, char* name, int level)
 379 {
 380         openlog(name, LOG_PID|LOG_CONS, level);
 381 }
 382
 383 static void xsyslog(BIO *bp, int priority, const char *string)
 384 {
 385         syslog(priority, "%s", string);
 386 }
 387
 388 static void xcloselog(BIO* bp)
 389 {
 390         closelog();
 391 }
 392
 393 #endif /* Unix */
 394
 395 #endif /* NO_SYSLOG */