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     daemon();
  14 extern int      lber_debug;
  15
  16 extern char Versionstr[];
  17
  18 /*
  19  * read-only global variables or variables only written by the listener
  20  * thread (after they are initialized) - no need to protect them with a mutex.
  21  */
  22 int             ldap_debug;
  23 #ifdef LDAP_DEBUG
  24 int             ldap_syslog = LDAP_DEBUG_STATS;
  25 #else
  26 int             ldap_syslog;
  27 #endif
  28 int             ldap_syslog_level = LOG_DEBUG;
  29 int             udp;
  30 int             slapd_shutdown;
  31 char            *default_referral;
  32 char            *configfile;
  33 time_t          starttime;
  34 pthread_t       listener_tid;
  35 int             g_argc;
  36 char            **g_argv;
  37 /*
  38  * global variables that need mutex protection
  39  */
  40 time_t          currenttime;
  41 pthread_mutex_t currenttime_mutex;
  42 int             active_threads;
  43 pthread_mutex_t active_threads_mutex;
  44 pthread_mutex_t new_conn_mutex;
  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 #ifndef sunos5
  59 pthread_mutex_t regex_mutex;
  60 #endif
  61
  62 static
  63 usage( name )
  64     char        *name;
  65 {
  66         fprintf( stderr, "usage: %s [-d debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]\n", name );
  67 }
  68
  69 main( argc, argv )
  70     int         argc;
  71     char        **argv;
  72 {
  73         int             i;
  74         int             inetd = 0;
  75         int             port;
  76         char            *myname;
  77         Backend         *be = NULL;
  78         FILE            *fp = NULL;
  79         extern char     *optarg;
  80
  81         configfile = SLAPD_DEFAULT_CONFIGFILE;
  82         port = LDAP_PORT;
  83         g_argc = argc;
  84         g_argv = argv;
  85
  86         while ( (i = getopt( argc, argv, "d:f:ip:s:u" )) != EOF ) {
  87                 switch ( i ) {
  88 #ifdef LDAP_DEBUG
  89                 case 'd':       /* turn on debugging */
  90                         if ( optarg[0] == '?' ) {
  91                                 printf( "Debug levels:\n" );
  92                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
  93                                     LDAP_DEBUG_TRACE );
  94                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
  95                                     LDAP_DEBUG_PACKETS );
  96                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
  97                                     LDAP_DEBUG_ARGS );
  98                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
  99                                     LDAP_DEBUG_CONNS );
 100                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
 101                                     LDAP_DEBUG_BER );
 102                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 103                                     LDAP_DEBUG_FILTER );
 104                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 105                                     LDAP_DEBUG_CONFIG );
 106                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 107                                     LDAP_DEBUG_ACL );
 108                                 printf( "\tLDAP_DEBUG_STATS\t\t%d\n",
 109                                     LDAP_DEBUG_STATS );
 110                                 printf( "\tLDAP_DEBUG_STATS2\t\t%d\n",
 111                                     LDAP_DEBUG_STATS2 );
 112                                 printf( "\tLDAP_DEBUG_SHELL\t\t%d\n",
 113                                     LDAP_DEBUG_SHELL );
 114                                 printf( "\tLDAP_DEBUG_PARSE\t\t%d\n",
 115                                     LDAP_DEBUG_PARSE );
 116                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 117                                     LDAP_DEBUG_ANY );
 118                                 exit( 0 );
 119                         } else {
 120                                 ldap_debug = atoi( optarg );
 121                                 lber_debug = (ldap_debug & LDAP_DEBUG_BER);
 122                         }
 123                         break;
 124 #else
 125                 case 'd':       /* turn on debugging */
 126                         fprintf( stderr,
 127                             "must compile with LDAP_DEBUG for debugging\n" );
 128                         break;
 129 #endif
 130
 131                 case 'f':       /* read config file */
 132                         configfile = strdup( optarg );
 133                         break;
 134
 135                 case 'i':       /* run from inetd */
 136                         inetd = 1;
 137                         break;
 138
 139                 case 'p':       /* port on which to listen */
 140                         port = atoi( optarg );
 141                         break;
 142
 143                 case 's':       /* set syslog level */
 144                         ldap_syslog = atoi( optarg );
 145                         break;
 146
 147                 case 'u':       /* do udp */
 148                         udp = 1;
 149                         break;
 150
 151                 default:
 152                         usage( argv[0] );
 153                         exit( 1 );
 154                 }
 155         }
 156
 157         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 158
 159         if ( (myname = strrchr( argv[0], '/' )) == NULL ) {
 160                 myname = strdup( argv[0] );
 161         } else {
 162                 myname = strdup( myname + 1 );
 163         }
 164
 165         if ( ! inetd ) {
 166                 /* pre-open config file before detach in case it is a relative path */
 167                 fp = fopen( configfile, "r" );
 168                 detach();
 169         }
 170 #ifdef LOG_LOCAL4
 171         openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL4 );
 172 #else
 173         openlog( myname, OPENLOG_OPTIONS );
 174 #endif
 175
 176         init();
 177         read_config( configfile, &be, fp );
 178
 179         if ( ! inetd ) {
 180                 pthread_attr_t  attr;
 181                 int             status;
 182
 183                 time( &starttime );
 184                 pthread_attr_init( &attr );
 185                 pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED );
 186
 187                 if ( pthread_create( &listener_tid, attr, (void *) daemon,
 188                     (void *) port ) != 0 ) {
 189                         Debug( LDAP_DEBUG_ANY,
 190                             "listener pthread_create failed\n", 0, 0, 0 );
 191                         exit( 1 );
 192                 }
 193                 pthread_attr_destroy( &attr );
 194                 pthread_join( listener_tid, (void *) &status );
 195                 pthread_exit( 0 );
 196         } else {
 197                 Connection              c;
 198                 Operation               *o;
 199                 BerElement              ber;
 200                 unsigned long           len, tag;
 201                 long                    msgid;
 202                 int                     flen;
 203                 struct sockaddr_in      from;
 204                 struct hostent          *hp;
 205
 206                 c.c_dn = NULL;
 207                 c.c_ops = NULL;
 208                 c.c_sb.sb_sd = 0;
 209                 c.c_sb.sb_options = 0;
 210                 c.c_sb.sb_naddr = udp ? 1 : 0;
 211                 c.c_sb.sb_ber.ber_buf = NULL;
 212                 c.c_sb.sb_ber.ber_ptr = NULL;
 213                 c.c_sb.sb_ber.ber_end = NULL;
 214                 pthread_mutex_init( &c.c_dnmutex, pthread_mutexattr_default );
 215                 pthread_mutex_init( &c.c_opsmutex, pthread_mutexattr_default );
 216                 pthread_mutex_init( &c.c_pdumutex, pthread_mutexattr_default );
 217 #ifdef notdefcldap
 218                 c.c_sb.sb_addrs = (void **) saddrlist;
 219                 c.c_sb.sb_fromaddr = &faddr;
 220                 c.c_sb.sb_useaddr = saddrlist[ 0 ] = &saddr;
 221 #endif
 222                 flen = sizeof(from);
 223                 if ( getpeername( 0, (struct sockaddr *) &from, &flen ) == 0 ) {
 224 #ifdef REVERSE_LOOKUP
 225                         hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
 226                             sizeof(from.sin_addr.s_addr), AF_INET );
 227 #else
 228                         hp = NULL;
 229 #endif
 230
 231                         Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
 232                             hp == NULL ? "unknown" : hp->h_name,
 233                             inet_ntoa( from.sin_addr ), 0 );
 234
 235                         c.c_addr = inet_ntoa( from.sin_addr );
 236                         c.c_domain = strdup( hp == NULL ? "" : hp->h_name );
 237                 } else {
 238                         Debug( LDAP_DEBUG_ARGS, "connection from unknown\n",
 239                             0, 0, 0 );
 240                 }
 241
 242                 ber_init( &ber, 0 );
 243                 while ( (tag = ber_get_next( &c.c_sb, &len, &ber ))
 244                     == LDAP_TAG_MESSAGE ) {
 245                         pthread_mutex_lock( &currenttime_mutex );
 246                         time( &currenttime );
 247                         pthread_mutex_unlock( &currenttime_mutex );
 248
 249                         if ( (tag = ber_get_int( &ber, &msgid ))
 250                             != LDAP_TAG_MSGID ) {
 251                                 /* log and send error */
 252                                 Debug( LDAP_DEBUG_ANY,
 253                                     "ber_get_int returns 0x%x\n", tag, 0, 0 );
 254                                 return;
 255                         }
 256
 257                         if ( (tag = ber_peek_tag( &ber, &len ))
 258                             == LBER_ERROR ) {
 259                                 /* log, close and send error */
 260                                 Debug( LDAP_DEBUG_ANY,
 261                                     "ber_peek_tag returns 0x%x\n", tag, 0, 0 );
 262                                 ber_free( &ber, 1 );
 263                                 close( c.c_sb.sb_sd );
 264                                 c.c_sb.sb_sd = -1;
 265                                 return;
 266                         }
 267
 268                         connection_activity( &c );
 269
 270                         ber_free( &ber, 1 );
 271                 }
 272         }
 273 }