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

   1 #include "portable.h"
   2
   3 #include <stdio.h>
   4
   5 #include <ac/socket.h>
   6 #include <ac/string.h>
   7 #include <ac/time.h>
   8
   9 #include "slap.h"
  10 #include "ldapconfig.h"
  11
  12 extern void     slapd_daemon();
  13 extern int      lber_debug;
  14
  15 extern char Versionstr[];
  16
  17
  18 /*
  19  * read-only global variables or variables only written by the listener
  20  * thread (after they are initialized) - no need to protect them with a mutex.
  21  */
  22 int             ldap_debug = 0;
  23 #ifdef LDAP_DEBUG
  24 int             ldap_syslog = LDAP_DEBUG_STATS;
  25 #else
  26 int             ldap_syslog;
  27 #endif
  28 int             ldap_syslog_level = LOG_DEBUG;
  29 int             udp;
  30 int             slapd_shutdown;
  31 char            *default_referral;
  32 char            *configfile;
  33 time_t          starttime;
  34 pthread_t       listener_tid;
  35 int             g_argc;
  36 char            **g_argv;
  37 /*
  38  * global variables that need mutex protection
  39  */
  40 time_t          currenttime;
  41 pthread_mutex_t currenttime_mutex;
  42 int             active_threads;
  43 pthread_mutex_t active_threads_mutex;
  44 pthread_mutex_t new_conn_mutex;
  45 long            ops_initiated;
  46 long            ops_completed;
  47 int             num_conns;
  48 pthread_mutex_t ops_mutex;
  49 long            num_entries_sent;
  50 long            num_bytes_sent;
  51 pthread_mutex_t num_sent_mutex;
  52 /*
  53  * these mutexes must be used when calling the entry2str()
  54  * routine since it returns a pointer to static data.
  55  */
  56 pthread_mutex_t entry2str_mutex;
  57 pthread_mutex_t replog_mutex;
  58
  59 static
  60 usage( name )
  61     char        *name;
  62 {
  63         fprintf( stderr, "usage: %s [-d ?|debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]\n", name );
  64 }
  65
  66 main( argc, argv )
  67     int         argc;
  68     char        **argv;
  69 {
  70         int             i;
  71         int             inetd = 0;
  72         int             port;
  73         char            *myname;
  74         Backend         *be = NULL;
  75         FILE            *fp = NULL;
  76         extern char     *optarg;
  77
  78         configfile = SLAPD_DEFAULT_CONFIGFILE;
  79         port = LDAP_PORT;
  80         g_argc = argc;
  81         g_argv = argv;
  82
  83         while ( (i = getopt( argc, argv, "d:f:ip:s:u" )) != EOF ) {
  84                 switch ( i ) {
  85 #ifdef LDAP_DEBUG
  86                 case 'd':       /* turn on debugging */
  87                         if ( optarg[0] == '?' ) {
  88                                 printf( "Debug levels:\n" );
  89                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
  90                                     LDAP_DEBUG_TRACE );
  91                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
  92                                     LDAP_DEBUG_PACKETS );
  93                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
  94                                     LDAP_DEBUG_ARGS );
  95                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
  96                                     LDAP_DEBUG_CONNS );
  97                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
  98                                     LDAP_DEBUG_BER );
  99                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 100                                     LDAP_DEBUG_FILTER );
 101                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 102                                     LDAP_DEBUG_CONFIG );
 103                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 104                                     LDAP_DEBUG_ACL );
 105                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
 106                                     LDAP_DEBUG_STATS );
 107                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 108                                     LDAP_DEBUG_STATS2 );
 109                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 110                                     LDAP_DEBUG_SHELL );
 111                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 112                                     LDAP_DEBUG_PARSE );
 113                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 114                                     LDAP_DEBUG_ANY );
 115                                 exit( 0 );
 116                         } else {
 117                                 ldap_debug |= atoi( optarg );
 118                                 lber_debug = (ldap_debug & LDAP_DEBUG_BER);
 119                         }
 120                         break;
 121 #else
 122                 case 'd':       /* turn on debugging */
 123                         fprintf( stderr,
 124                             "must compile with LDAP_DEBUG for debugging\n" );
 125                         break;
 126 #endif
 127
 128                 case 'f':       /* read config file */
 129                         configfile = strdup( optarg );
 130                         break;
 131
 132                 case 'i':       /* run from inetd */
 133                         inetd = 1;
 134                         break;
 135
 136                 case 'p':       /* port on which to listen */
 137                         port = atoi( optarg );
 138                         break;
 139
 140                 case 's':       /* set syslog level */
 141                         ldap_syslog = atoi( optarg );
 142                         break;
 143
 144                 case 'u':       /* do udp */
 145                         udp = 1;
 146                         break;
 147
 148                 default:
 149                         usage( argv[0] );
 150                         exit( 1 );
 151                 }
 152         }
 153
 154         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 155
 156         if ( (myname = strrchr( argv[0], '/' )) == NULL ) {
 157                 myname = strdup( argv[0] );
 158         } else {
 159                 myname = strdup( myname + 1 );
 160         }
 161
 162         if ( ! inetd ) {
 163                 /* pre-open config file before detach in case it is a relative path */
 164                 fp = fopen( configfile, "r" );
 165                 detach();
 166         }
 167 #ifdef LOG_LOCAL4
 168         openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL4 );
 169 #else
 170         openlog( myname, OPENLOG_OPTIONS );
 171 #endif
 172
 173         init();
 174         read_config( configfile, &be, fp );
 175
 176         if ( ! inetd ) {
 177                 pthread_attr_t  attr;
 178                 int             status;
 179
 180                 time( &starttime );
 181                 pthread_attr_init( &attr );
 182                 pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED );
 183
 184 #if !defined(HAVE_PTHREADS_D4) && !defined(HAVE_DCE)
 185                 /* POSIX_THREADS or compatible
 186                  * This is a draft 10 or standard pthreads implementation
 187                  */
 188                 if ( pthread_create( &listener_tid, &attr, slapd_daemon,
 189                     (void *) port ) != 0 ) {
 190                         Debug( LDAP_DEBUG_ANY,
 191                             "listener pthread_create failed\n", 0, 0, 0 );
 192                         exit( 1 );
 193                 }
 194 #else   /* draft4 */
 195                 /*
 196                  * This is a draft 4 or earlier pthreads implementation
 197                  */
 198                 if ( pthread_create( &listener_tid, attr, slapd_daemon,
 199                     (void *) port ) != 0 ) {
 200                         Debug( LDAP_DEBUG_ANY,
 201                             "listener pthread_create failed\n", 0, 0, 0 );
 202                         exit( 1 );
 203                 }
 204 #endif  /* !draft4 */
 205                 pthread_attr_destroy( &attr );
 206                 pthread_join( listener_tid, (void *) &status );
 207                 pthread_exit( 0 );
 208         } else {
 209                 Connection              c;
 210                 Operation               *o;
 211                 BerElement              ber;
 212                 unsigned long           len, tag;
 213                 long                    msgid;
 214                 int                     flen;
 215                 struct sockaddr_in      from;
 216                 struct hostent          *hp;
 217
 218                 c.c_dn = NULL;
 219                 c.c_ops = NULL;
 220                 c.c_sb.sb_sd = 0;
 221                 c.c_sb.sb_options = 0;
 222                 c.c_sb.sb_naddr = udp ? 1 : 0;
 223                 c.c_sb.sb_ber.ber_buf = NULL;
 224                 c.c_sb.sb_ber.ber_ptr = NULL;
 225                 c.c_sb.sb_ber.ber_end = NULL;
 226                 pthread_mutex_init( &c.c_dnmutex, pthread_mutexattr_default );
 227                 pthread_mutex_init( &c.c_opsmutex, pthread_mutexattr_default );
 228                 pthread_mutex_init( &c.c_pdumutex, pthread_mutexattr_default );
 229 #ifdef notdefcldap
 230                 c.c_sb.sb_addrs = (void **) saddrlist;
 231                 c.c_sb.sb_fromaddr = &faddr;
 232                 c.c_sb.sb_useaddr = saddrlist[ 0 ] = &saddr;
 233 #endif
 234                 flen = sizeof(from);
 235                 if ( getpeername( 0, (struct sockaddr *) &from, &flen ) == 0 ) {
 236 #ifdef SLAPD_RLOOKUPS
 237                         hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
 238                             sizeof(from.sin_addr.s_addr), AF_INET );
 239 #else
 240                         hp = NULL;
 241 #endif
 242
 243                         Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
 244                             hp == NULL ? "unknown" : hp->h_name,
 245                             inet_ntoa( from.sin_addr ), 0 );
 246
 247                         c.c_addr = inet_ntoa( from.sin_addr );
 248                         c.c_domain = strdup( hp == NULL ? "" : hp->h_name );
 249                 } else {
 250                         Debug( LDAP_DEBUG_ARGS, "connection from unknown\n",
 251                             0, 0, 0 );
 252                 }
 253
 254                 ber_init( &ber, 0 );
 255                 while ( (tag = ber_get_next( &c.c_sb, &len, &ber ))
 256                     == LDAP_TAG_MESSAGE ) {
 257                         pthread_mutex_lock( &currenttime_mutex );
 258                         time( &currenttime );
 259                         pthread_mutex_unlock( &currenttime_mutex );
 260
 261                         if ( (tag = ber_get_int( &ber, &msgid ))
 262                             != LDAP_TAG_MSGID ) {
 263                                 /* log and send error */
 264                                 Debug( LDAP_DEBUG_ANY,
 265                                     "ber_get_int returns 0x%x\n", tag, 0, 0 );
 266                                 return;
 267                         }
 268
 269                         if ( (tag = ber_peek_tag( &ber, &len ))
 270                             == LBER_ERROR ) {
 271                                 /* log, close and send error */
 272                                 Debug( LDAP_DEBUG_ANY,
 273                                     "ber_peek_tag returns 0x%x\n", tag, 0, 0 );
 274                                 ber_free( &ber, 1 );
 275                                 close( c.c_sb.sb_sd );
 276                                 c.c_sb.sb_sd = -1;
 277                                 return;
 278                         }
 279
 280                         connection_activity( &c );
 281
 282                         ber_free( &ber, 1 );
 283                 }
 284         }
 285 }