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

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <sys/types.h>
   4 #include <sys/time.h>
   5 #include <sys/socket.h>
   6 #include <netinet/in.h>
   7 #include <arpa/inet.h>
   8 #include <netdb.h>
   9 #include "portable.h"
  10 #include "slap.h"
  11 #include "ldapconfig.h"
  12
  13 extern void     slapd_daemon();
  14 extern int      lber_debug;
  15
  16 extern char Versionstr[];
  17
  18
  19 /*
  20  * read-only global variables or variables only written by the listener
  21  * thread (after they are initialized) - no need to protect them with a mutex.
  22  */
  23 int             ldap_debug = 0;
  24 #ifdef LDAP_DEBUG
  25 int             ldap_syslog = LDAP_DEBUG_STATS;
  26 #else
  27 int             ldap_syslog;
  28 #endif
  29 int             ldap_syslog_level = LOG_DEBUG;
  30 int             udp;
  31 int             slapd_shutdown;
  32 char            *default_referral;
  33 char            *configfile;
  34 time_t          starttime;
  35 pthread_t       listener_tid;
  36 int             g_argc;
  37 char            **g_argv;
  38 /*
  39  * global variables that need mutex protection
  40  */
  41 time_t          currenttime;
  42 pthread_mutex_t currenttime_mutex;
  43 int             active_threads;
  44 pthread_mutex_t active_threads_mutex;
  45 pthread_mutex_t new_conn_mutex;
  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
  61 usage( name )
  62     char        *name;
  63 {
  64         fprintf( stderr, "usage: %s [-d ?|debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]\n", name );
  65 }
  66
  67 main( argc, argv )
  68     int         argc;
  69     char        **argv;
  70 {
  71         int             i;
  72         int             inetd = 0;
  73         int             port;
  74         char            *myname;
  75         Backend         *be = NULL;
  76         FILE            *fp = NULL;
  77         extern char     *optarg;
  78
  79         configfile = SLAPD_DEFAULT_CONFIGFILE;
  80         port = LDAP_PORT;
  81         g_argc = argc;
  82         g_argv = argv;
  83
  84         while ( (i = getopt( argc, argv, "d:f:ip:s:u" )) != EOF ) {
  85                 switch ( i ) {
  86 #ifdef LDAP_DEBUG
  87                 case 'd':       /* turn on debugging */
  88                         if ( optarg[0] == '?' ) {
  89                                 printf( "Debug levels:\n" );
  90                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
  91                                     LDAP_DEBUG_TRACE );
  92                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
  93                                     LDAP_DEBUG_PACKETS );
  94                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
  95                                     LDAP_DEBUG_ARGS );
  96                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
  97                                     LDAP_DEBUG_CONNS );
  98                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
  99                                     LDAP_DEBUG_BER );
 100                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 101                                     LDAP_DEBUG_FILTER );
 102                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 103                                     LDAP_DEBUG_CONFIG );
 104                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 105                                     LDAP_DEBUG_ACL );
 106                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
 107                                     LDAP_DEBUG_STATS );
 108                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 109                                     LDAP_DEBUG_STATS2 );
 110                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 111                                     LDAP_DEBUG_SHELL );
 112                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 113                                     LDAP_DEBUG_PARSE );
 114                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 115                                     LDAP_DEBUG_ANY );
 116                                 exit( 0 );
 117                         } else {
 118                                 ldap_debug |= atoi( optarg );
 119                                 lber_debug = (ldap_debug & LDAP_DEBUG_BER);
 120                         }
 121                         break;
 122 #else
 123                 case 'd':       /* turn on debugging */
 124                         fprintf( stderr,
 125                             "must compile with LDAP_DEBUG for debugging\n" );
 126                         break;
 127 #endif
 128
 129                 case 'f':       /* read config file */
 130                         configfile = strdup( optarg );
 131                         break;
 132
 133                 case 'i':       /* run from inetd */
 134                         inetd = 1;
 135                         break;
 136
 137                 case 'p':       /* port on which to listen */
 138                         port = atoi( optarg );
 139                         break;
 140
 141                 case 's':       /* set syslog level */
 142                         ldap_syslog = atoi( optarg );
 143                         break;
 144
 145                 case 'u':       /* do udp */
 146                         udp = 1;
 147                         break;
 148
 149                 default:
 150                         usage( argv[0] );
 151                         exit( 1 );
 152                 }
 153         }
 154
 155         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 156
 157         if ( (myname = strrchr( argv[0], '/' )) == NULL ) {
 158                 myname = strdup( argv[0] );
 159         } else {
 160                 myname = strdup( myname + 1 );
 161         }
 162
 163         if ( ! inetd ) {
 164                 /* pre-open config file before detach in case it is a relative path */
 165                 fp = fopen( configfile, "r" );
 166                 detach();
 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                 pthread_attr_t  attr;
 179                 int             status;
 180
 181                 time( &starttime );
 182                 pthread_attr_init( &attr );
 183                 pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED );
 184
 185 #ifndef THREAD_MIT_PTHREADS
 186                 /* POSIX_THREADS or compatible
 187                  * This is a draft 10 or standard pthreads implementation
 188                  */
 189                 if ( pthread_create( &listener_tid, &attr, (void *) slapd_daemon,
 190                     (void *) port ) != 0 ) {
 191                         Debug( LDAP_DEBUG_ANY,
 192                             "listener pthread_create failed\n", 0, 0, 0 );
 193                         exit( 1 );
 194                 }
 195 #else   /* !THREAD_MIT_PTHREADS */
 196                 /*
 197                  * This is a draft 4 or earlier pthreads implementation
 198                  */
 199                 if ( pthread_create( &listener_tid, attr, (void *) slapd_daemon,
 200                     (void *) port ) != 0 ) {
 201                         Debug( LDAP_DEBUG_ANY,
 202                             "listener pthread_create failed\n", 0, 0, 0 );
 203                         exit( 1 );
 204                 }
 205 #endif  /* !THREAD_MIT_PTHREADS */
 206                 pthread_attr_destroy( &attr );
 207                 pthread_join( listener_tid, (void *) &status );
 208                 pthread_exit( 0 );
 209         } else {
 210                 Connection              c;
 211                 Operation               *o;
 212                 BerElement              ber;
 213                 unsigned long           len, tag;
 214                 long                    msgid;
 215                 int                     flen;
 216                 struct sockaddr_in      from;
 217                 struct hostent          *hp;
 218
 219                 c.c_dn = NULL;
 220                 c.c_ops = NULL;
 221                 c.c_sb.sb_sd = 0;
 222                 c.c_sb.sb_options = 0;
 223                 c.c_sb.sb_naddr = udp ? 1 : 0;
 224                 c.c_sb.sb_ber.ber_buf = NULL;
 225                 c.c_sb.sb_ber.ber_ptr = NULL;
 226                 c.c_sb.sb_ber.ber_end = NULL;
 227                 pthread_mutex_init( &c.c_dnmutex, pthread_mutexattr_default );
 228                 pthread_mutex_init( &c.c_opsmutex, pthread_mutexattr_default );
 229                 pthread_mutex_init( &c.c_pdumutex, pthread_mutexattr_default );
 230 #ifdef notdefcldap
 231                 c.c_sb.sb_addrs = (void **) saddrlist;
 232                 c.c_sb.sb_fromaddr = &faddr;
 233                 c.c_sb.sb_useaddr = saddrlist[ 0 ] = &saddr;
 234 #endif
 235                 flen = sizeof(from);
 236                 if ( getpeername( 0, (struct sockaddr *) &from, &flen ) == 0 ) {
 237 #ifdef REVERSE_LOOKUP
 238                         hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
 239                             sizeof(from.sin_addr.s_addr), AF_INET );
 240 #else
 241                         hp = NULL;
 242 #endif
 243
 244                         Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
 245                             hp == NULL ? "unknown" : hp->h_name,
 246                             inet_ntoa( from.sin_addr ), 0 );
 247
 248                         c.c_addr = inet_ntoa( from.sin_addr );
 249                         c.c_domain = strdup( hp == NULL ? "" : hp->h_name );
 250                 } else {
 251                         Debug( LDAP_DEBUG_ARGS, "connection from unknown\n",
 252                             0, 0, 0 );
 253                 }
 254
 255                 ber_init( &ber, 0 );
 256                 while ( (tag = ber_get_next( &c.c_sb, &len, &ber ))
 257                     == LDAP_TAG_MESSAGE ) {
 258                         pthread_mutex_lock( &currenttime_mutex );
 259                         time( &currenttime );
 260                         pthread_mutex_unlock( &currenttime_mutex );
 261
 262                         if ( (tag = ber_get_int( &ber, &msgid ))
 263                             != LDAP_TAG_MSGID ) {
 264                                 /* log and send error */
 265                                 Debug( LDAP_DEBUG_ANY,
 266                                     "ber_get_int returns 0x%x\n", tag, 0, 0 );
 267                                 return;
 268                         }
 269
 270                         if ( (tag = ber_peek_tag( &ber, &len ))
 271                             == LBER_ERROR ) {
 272                                 /* log, close and send error */
 273                                 Debug( LDAP_DEBUG_ANY,
 274                                     "ber_peek_tag returns 0x%x\n", tag, 0, 0 );
 275                                 ber_free( &ber, 1 );
 276                                 close( c.c_sb.sb_sd );
 277                                 c.c_sb.sb_sd = -1;
 278                                 return;
 279                         }
 280
 281                         connection_activity( &c );
 282
 283                         ber_free( &ber, 1 );
 284                 }
 285         }
 286 }