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