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