git.sur5r.net Git - openldap/blob - servers/slapd/main.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <sys/types.h>
   4 #include <sys/time.h>
   5 #include <sys/socket.h>
   6 #include <netinet/in.h>
   7 #include <arpa/inet.h>
   8 #include <netdb.h>
   9 #include "portable.h"
  10 #include "slap.h"
  11 #include "ldapconfig.h"
  12
  13 extern void     slapd_daemon();
  14 extern int      lber_debug;
  15
  16 extern char Versionstr[];
  17
  18
  19 /*
  20  * read-only global variables or variables only written by the listener
  21  * thread (after they are initialized) - no need to protect them with a mutex.
  22  */
  23 int             ldap_debug = 0;
  24 #ifdef LDAP_DEBUG
  25 int             ldap_syslog = LDAP_DEBUG_STATS;
  26 #else
  27 int             ldap_syslog;
  28 #endif
  29 int             ldap_syslog_level = LOG_DEBUG;
  30 int             udp;
  31 int             slapd_shutdown;
  32 char            *default_referral;
  33 char            *configfile;
  34 time_t          starttime;
  35 pthread_t       listener_tid;
  36 int             g_argc;
  37 char            **g_argv;
  38 /*
  39  * global variables that need mutex protection
  40  */
  41 time_t          currenttime;
  42 pthread_mutex_t currenttime_mutex;
  43 int             active_threads;
  44 pthread_mutex_t active_threads_mutex;
  45 pthread_mutex_t new_conn_mutex;
  46 long            ops_initiated;
  47 long            ops_completed;
  48 int             num_conns;
  49 pthread_mutex_t ops_mutex;
  50 long            num_entries_sent;
  51 long            num_bytes_sent;
  52 pthread_mutex_t num_sent_mutex;
  53 /*
  54  * these mutexes must be used when calling the entry2str()
  55  * routine since it returns a pointer to static data.
  56  */
  57 pthread_mutex_t entry2str_mutex;
  58 pthread_mutex_t replog_mutex;
  59 #ifndef sunos5
  60 pthread_mutex_t regex_mutex;
  61 #endif
  62
  63 static
  64 usage( name )
  65     char        *name;
  66 {
  67         fprintf( stderr, "usage: %s [-d ?|debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]\n", name );
  68 }
  69
  70 main( argc, argv )
  71     int         argc;
  72     char        **argv;
  73 {
  74         int             i;
  75         int             inetd = 0;
  76         int             port;
  77         char            *myname;
  78         Backend         *be = NULL;
  79         FILE            *fp = NULL;
  80         extern char     *optarg;
  81
  82         configfile = SLAPD_DEFAULT_CONFIGFILE;
  83         port = LDAP_PORT;
  84         g_argc = argc;
  85         g_argv = argv;
  86
  87         while ( (i = getopt( argc, argv, "d:f:ip:s:u" )) != EOF ) {
  88                 switch ( i ) {
  89 #ifdef LDAP_DEBUG
  90                 case 'd':       /* turn on debugging */
  91                         if ( optarg[0] == '?' ) {
  92                                 printf( "Debug levels:\n" );
  93                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
  94                                     LDAP_DEBUG_TRACE );
  95                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
  96                                     LDAP_DEBUG_PACKETS );
  97                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
  98                                     LDAP_DEBUG_ARGS );
  99                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
 100                                     LDAP_DEBUG_CONNS );
 101                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
 102                                     LDAP_DEBUG_BER );
 103                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 104                                     LDAP_DEBUG_FILTER );
 105                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 106                                     LDAP_DEBUG_CONFIG );
 107                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 108                                     LDAP_DEBUG_ACL );
 109                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
 110                                     LDAP_DEBUG_STATS );
 111                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 112                                     LDAP_DEBUG_STATS2 );
 113                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 114                                     LDAP_DEBUG_SHELL );
 115                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 116                                     LDAP_DEBUG_PARSE );
 117                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 118                                     LDAP_DEBUG_ANY );
 119                                 exit( 0 );
 120                         } else {
 121                                 ldap_debug |= atoi( optarg );
 122                                 lber_debug = (ldap_debug & LDAP_DEBUG_BER);
 123                         }
 124                         break;
 125 #else
 126                 case 'd':       /* turn on debugging */
 127                         fprintf( stderr,
 128                             "must compile with LDAP_DEBUG for debugging\n" );
 129                         break;
 130 #endif
 131
 132                 case 'f':       /* read config file */
 133                         configfile = strdup( optarg );
 134                         break;
 135
 136                 case 'i':       /* run from inetd */
 137                         inetd = 1;
 138                         break;
 139
 140                 case 'p':       /* port on which to listen */
 141                         port = atoi( optarg );
 142                         break;
 143
 144                 case 's':       /* set syslog level */
 145                         ldap_syslog = atoi( optarg );
 146                         break;
 147
 148                 case 'u':       /* do udp */
 149                         udp = 1;
 150                         break;
 151
 152                 default:
 153                         usage( argv[0] );
 154                         exit( 1 );
 155                 }
 156         }
 157
 158         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 159
 160         if ( (myname = strrchr( argv[0], '/' )) == NULL ) {
 161                 myname = strdup( argv[0] );
 162         } else {
 163                 myname = strdup( myname + 1 );
 164         }
 165
 166         if ( ! inetd ) {
 167                 /* pre-open config file before detach in case it is a relative path */
 168                 fp = fopen( configfile, "r" );
 169                 detach();
 170         }
 171 #ifdef LOG_LOCAL4
 172         openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL4 );
 173 #else
 174         openlog( myname, OPENLOG_OPTIONS );
 175 #endif
 176
 177         init();
 178         read_config( configfile, &be, fp );
 179
 180         if ( ! inetd ) {
 181                 pthread_attr_t  attr;
 182                 int             status;
 183
 184                 time( &starttime );
 185                 pthread_attr_init( &attr );
 186                 pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED );
 187
 188 #ifndef THREAD_MIT_PTHREADS
 189                 /* POSIX_THREADS or compatible
 190                  * This is a draft 10 or standard pthreads implementation
 191                  */
 192                 if ( pthread_create( &listener_tid, &attr, (void *) slapd_daemon,
 193                     (void *) port ) != 0 ) {
 194                         Debug( LDAP_DEBUG_ANY,
 195                             "listener pthread_create failed\n", 0, 0, 0 );
 196                         exit( 1 );
 197                 }
 198 #else   /* !THREAD_MIT_PTHREADS */
 199                 /*
 200                  * This is a draft 4 or earlier pthreads implementation
 201                  */
 202                 if ( pthread_create( &listener_tid, attr, (void *) slapd_daemon,
 203                     (void *) port ) != 0 ) {
 204                         Debug( LDAP_DEBUG_ANY,
 205                             "listener pthread_create failed\n", 0, 0, 0 );
 206                         exit( 1 );
 207                 }
 208 #endif  /* !THREAD_MIT_PTHREADS */
 209                 pthread_attr_destroy( &attr );
 210                 pthread_join( listener_tid, (void *) &status );
 211                 pthread_exit( 0 );
 212         } else {
 213                 Connection              c;
 214                 Operation               *o;
 215                 BerElement              ber;
 216                 unsigned long           len, tag;
 217                 long                    msgid;
 218                 int                     flen;
 219                 struct sockaddr_in      from;
 220                 struct hostent          *hp;
 221
 222                 c.c_dn = NULL;
 223                 c.c_ops = NULL;
 224                 c.c_sb.sb_sd = 0;
 225                 c.c_sb.sb_options = 0;
 226                 c.c_sb.sb_naddr = udp ? 1 : 0;
 227                 c.c_sb.sb_ber.ber_buf = NULL;
 228                 c.c_sb.sb_ber.ber_ptr = NULL;
 229                 c.c_sb.sb_ber.ber_end = NULL;
 230                 pthread_mutex_init( &c.c_dnmutex, pthread_mutexattr_default );
 231                 pthread_mutex_init( &c.c_opsmutex, pthread_mutexattr_default );
 232                 pthread_mutex_init( &c.c_pdumutex, pthread_mutexattr_default );
 233 #ifdef notdefcldap
 234                 c.c_sb.sb_addrs = (void **) saddrlist;
 235                 c.c_sb.sb_fromaddr = &faddr;
 236                 c.c_sb.sb_useaddr = saddrlist[ 0 ] = &saddr;
 237 #endif
 238                 flen = sizeof(from);
 239                 if ( getpeername( 0, (struct sockaddr *) &from, &flen ) == 0 ) {
 240 #ifdef REVERSE_LOOKUP
 241                         hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
 242                             sizeof(from.sin_addr.s_addr), AF_INET );
 243 #else
 244                         hp = NULL;
 245 #endif
 246
 247                         Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
 248                             hp == NULL ? "unknown" : hp->h_name,
 249                             inet_ntoa( from.sin_addr ), 0 );
 250
 251                         c.c_addr = inet_ntoa( from.sin_addr );
 252                         c.c_domain = strdup( hp == NULL ? "" : hp->h_name );
 253                 } else {
 254                         Debug( LDAP_DEBUG_ARGS, "connection from unknown\n",
 255                             0, 0, 0 );
 256                 }
 257
 258                 ber_init( &ber, 0 );
 259                 while ( (tag = ber_get_next( &c.c_sb, &len, &ber ))
 260                     == LDAP_TAG_MESSAGE ) {
 261                         pthread_mutex_lock( &currenttime_mutex );
 262                         time( &currenttime );
 263                         pthread_mutex_unlock( &currenttime_mutex );
 264
 265                         if ( (tag = ber_get_int( &ber, &msgid ))
 266                             != LDAP_TAG_MSGID ) {
 267                                 /* log and send error */
 268                                 Debug( LDAP_DEBUG_ANY,
 269                                     "ber_get_int returns 0x%x\n", tag, 0, 0 );
 270                                 return;
 271                         }
 272
 273                         if ( (tag = ber_peek_tag( &ber, &len ))
 274                             == LBER_ERROR ) {
 275                                 /* log, close and send error */
 276                                 Debug( LDAP_DEBUG_ANY,
 277                                     "ber_peek_tag returns 0x%x\n", tag, 0, 0 );
 278                                 ber_free( &ber, 1 );
 279                                 close( c.c_sb.sb_sd );
 280                                 c.c_sb.sb_sd = -1;
 281                                 return;
 282                         }
 283
 284                         connection_activity( &c );
 285
 286                         ber_free( &ber, 1 );
 287                 }
 288         }
 289 }