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 #include <ac/unistd.h>
   9
  10 #include "ldapconfig.h"
  11 #include "slap.h"
  12 #include "lutil.h"                      /* Get lutil_detach() */
  13
  14
  15 /*
  16  * read-only global variables or variables only written by the listener
  17  * thread (after they are initialized) - no need to protect them with a mutex.
  18  */
  19 int             ldap_debug = 0;
  20 #ifdef LDAP_DEBUG
  21 int             ldap_syslog = LDAP_DEBUG_STATS;
  22 #else
  23 int             ldap_syslog;
  24 #endif
  25 int             ldap_syslog_level = LOG_DEBUG;
  26 int             udp;
  27 char            *default_referral;
  28 char            *configfile;
  29 time_t          starttime;
  30 pthread_t       listener_tid;
  31 int             g_argc;
  32 char            **g_argv;
  33 /*
  34  * global variables that need mutex protection
  35  */
  36 time_t          currenttime;
  37 pthread_mutex_t currenttime_mutex;
  38 int             active_threads;
  39 pthread_mutex_t active_threads_mutex;
  40 pthread_mutex_t new_conn_mutex;
  41 long            ops_initiated;
  42 long            ops_completed;
  43 int             num_conns;
  44 pthread_mutex_t ops_mutex;
  45 long            num_entries_sent;
  46 long            num_bytes_sent;
  47 pthread_mutex_t num_sent_mutex;
  48 /*
  49  * these mutexes must be used when calling the entry2str()
  50  * routine since it returns a pointer to static data.
  51  */
  52 pthread_mutex_t entry2str_mutex;
  53 pthread_mutex_t replog_mutex;
  54
  55 static void
  56 usage( char *name )
  57 {
  58         fprintf( stderr, "usage: %s [-d ?|debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]\n", name );
  59 }
  60
  61 int
  62 main( int argc, char **argv )
  63 {
  64         int             i;
  65         int             inetd = 0;
  66         int             port;
  67         char            *myname;
  68         Backend         *be = NULL;
  69         FILE            *fp = NULL;
  70
  71         configfile = SLAPD_DEFAULT_CONFIGFILE;
  72         port = LDAP_PORT;
  73         g_argc = argc;
  74         g_argv = argv;
  75
  76         while ( (i = getopt( argc, argv, "d:f:ip:s:u" )) != EOF ) {
  77                 switch ( i ) {
  78 #ifdef LDAP_DEBUG
  79                 case 'd':       /* turn on debugging */
  80                         if ( optarg[0] == '?' ) {
  81                                 printf( "Debug levels:\n" );
  82                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
  83                                     LDAP_DEBUG_TRACE );
  84                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
  85                                     LDAP_DEBUG_PACKETS );
  86                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
  87                                     LDAP_DEBUG_ARGS );
  88                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
  89                                     LDAP_DEBUG_CONNS );
  90                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
  91                                     LDAP_DEBUG_BER );
  92                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
  93                                     LDAP_DEBUG_FILTER );
  94                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
  95                                     LDAP_DEBUG_CONFIG );
  96                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
  97                                     LDAP_DEBUG_ACL );
  98                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
  99                                     LDAP_DEBUG_STATS );
 100                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 101                                     LDAP_DEBUG_STATS2 );
 102                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 103                                     LDAP_DEBUG_SHELL );
 104                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 105                                     LDAP_DEBUG_PARSE );
 106                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 107                                     LDAP_DEBUG_ANY );
 108                                 exit( 0 );
 109                         } else {
 110                                 ldap_debug |= atoi( optarg );
 111                                 lber_debug = (ldap_debug & LDAP_DEBUG_BER);
 112                         }
 113                         break;
 114 #else
 115                 case 'd':       /* turn on debugging */
 116                         fprintf( stderr,
 117                             "must compile with LDAP_DEBUG for debugging\n" );
 118                         break;
 119 #endif
 120
 121                 case 'f':       /* read config file */
 122                         configfile = ch_strdup( optarg );
 123                         break;
 124
 125                 case 'i':       /* run from inetd */
 126                         inetd = 1;
 127                         break;
 128
 129                 case 'p':       /* port on which to listen */
 130                         port = atoi( optarg );
 131                         break;
 132
 133                 case 's':       /* set syslog level */
 134                         ldap_syslog = atoi( optarg );
 135                         break;
 136
 137                 case 'u':       /* do udp */
 138                         udp = 1;
 139                         break;
 140
 141                 default:
 142                         usage( argv[0] );
 143                         exit( 1 );
 144                 }
 145         }
 146
 147         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 148
 149         if ( (myname = strrchr( argv[0], '/' )) == NULL ) {
 150                 myname = ch_strdup( argv[0] );
 151         } else {
 152                 myname = ch_strdup( myname + 1 );
 153         }
 154
 155         if ( ! inetd ) {
 156                 /* pre-open config file before detach in case it is a relative path */
 157                 fp = fopen( configfile, "r" );
 158 #ifdef LDAP_DEBUG
 159                 lutil_detach( ldap_debug, 0 );
 160 #else
 161                 lutil_detach( 0, 0 );
 162 #endif
 163         }
 164 #ifdef LOG_LOCAL4
 165         openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL4 );
 166 #else
 167         openlog( myname, OPENLOG_OPTIONS );
 168 #endif
 169
 170         init();
 171         read_config( configfile, &be, fp );
 172
 173         if ( ! inetd ) {
 174                 pthread_attr_t  attr;
 175                 int             status;
 176
 177                 time( &starttime );
 178                 pthread_attr_init( &attr );
 179 #ifdef DETACH_LISTENER_THREAD
 180                 /* we should detach it if we're going to join with it */
 181                 pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED );
 182 #endif
 183
 184 #if !defined(HAVE_PTHREADS_D4)
 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 #ifdef HAVE_PHREADS_FINAL
 207                 pthread_join( listener_tid, (void *) NULL );
 208 #else
 209                 pthread_join( listener_tid, (void *) &status );
 210 #endif
 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 SLAPD_RLOOKUPS
 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 = ch_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_w_nullc( &ber, 0 );
 259
 260                 while ( (tag = ber_get_next( &c.c_sb, &len, &ber ))
 261                     == LDAP_TAG_MESSAGE ) {
 262                         pthread_mutex_lock( &currenttime_mutex );
 263                         time( &currenttime );
 264                         pthread_mutex_unlock( &currenttime_mutex );
 265
 266                         if ( (tag = ber_get_int( &ber, &msgid ))
 267                             != LDAP_TAG_MSGID ) {
 268                                 /* log and send error */
 269                                 Debug( LDAP_DEBUG_ANY,
 270                                    "ber_get_int returns 0x%lx\n", tag, 0, 0 );
 271                                 return 1;
 272                         }
 273
 274                         if ( (tag = ber_peek_tag( &ber, &len ))
 275                             == LBER_ERROR ) {
 276                                 /* log, close and send error */
 277                                 Debug( LDAP_DEBUG_ANY,
 278                                    "ber_peek_tag returns 0x%lx\n", tag, 0, 0 );
 279                                 ber_free( &ber, 1 );
 280                                 close( c.c_sb.sb_sd );
 281                                 c.c_sb.sb_sd = -1;
 282                                 return 1;
 283                         }
 284
 285                         connection_activity( &c );
 286
 287                         ber_free( &ber, 1 );
 288                 }
 289         }
 290         return 1;
 291 }