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