1 /* $NetBSD: rwmconf.c,v 1.1.1.2 2010/03/08 02:14:20 lukem Exp $ */ 2 3 /* rwmconf.c - rewrite/map configuration file routines */ 4 /* OpenLDAP: pkg/ldap/servers/slapd/overlays/rwmconf.c,v 1.25.2.5 2009/01/22 00:01:13 kurt Exp */ 5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 6 * 7 * Copyright 1999-2009 The OpenLDAP Foundation. 8 * Portions Copyright 1999-2003 Howard Chu. 9 * Portions Copyright 2000-2003 Pierangelo Masarati. 10 * All rights reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted only as authorized by the OpenLDAP 14 * Public License. 15 * 16 * A copy of this license is available in the file LICENSE in the 17 * top-level directory of the distribution or, alternatively, at 18 * <http://www.OpenLDAP.org/license.html>. 19 */ 20 /* ACKNOWLEDGEMENTS: 21 * This work was initially developed by the Howard Chu for inclusion 22 * in OpenLDAP Software and subsequently enhanced by Pierangelo 23 * Masarati. 24 */ 25 26 #include "portable.h" 27 28 #ifdef SLAPD_OVER_RWM 29 30 #include <stdio.h> 31 32 #include <ac/string.h> 33 #include <ac/socket.h> 34 35 #include "slap.h" 36 #include "rwm.h" 37 #include "lutil.h" 38 39 int 40 rwm_map_config( 41 struct ldapmap *oc_map, 42 struct ldapmap *at_map, 43 const char *fname, 44 int lineno, 45 int argc, 46 char **argv ) 47 { 48 struct ldapmap *map; 49 struct ldapmapping *mapping; 50 char *src, *dst; 51 int is_oc = 0; 52 int rc = 0; 53 54 if ( argc < 3 || argc > 4 ) { 55 fprintf( stderr, 56 "%s: line %d: syntax is \"map {objectclass | attribute} [<local> | *] {<foreign> | *}\"\n", 57 fname, lineno ); 58 return 1; 59 } 60 61 if ( strcasecmp( argv[1], "objectclass" ) == 0 ) { 62 map = oc_map; 63 is_oc = 1; 64 65 } else if ( strcasecmp( argv[1], "attribute" ) == 0 ) { 66 map = at_map; 67 68 } else { 69 fprintf( stderr, "%s: line %d: syntax is " 70 "\"map {objectclass | attribute} [<local> | *] " 71 "{<foreign> | *}\"\n", 72 fname, lineno ); 73 return 1; 74 } 75 76 if ( !is_oc && map->map == NULL ) { 77 /* only init if required */ 78 if ( rwm_map_init( map, &mapping ) != LDAP_SUCCESS ) { 79 return 1; 80 } 81 } 82 83 if ( strcmp( argv[2], "*" ) == 0 ) { 84 if ( argc < 4 || strcmp( argv[3], "*" ) == 0 ) { 85 map->drop_missing = ( argc < 4 ); 86 goto success_return; 87 } 88 src = dst = argv[3]; 89 90 } else if ( argc < 4 ) { 91 src = ""; 92 dst = argv[2]; 93 94 } else { 95 src = argv[2]; 96 dst = ( strcmp( argv[3], "*" ) == 0 ? src : argv[3] ); 97 } 98 99 if ( ( map == at_map ) 100 && ( strcasecmp( src, "objectclass" ) == 0 101 || strcasecmp( dst, "objectclass" ) == 0 ) ) 102 { 103 fprintf( stderr, 104 "%s: line %d: objectclass attribute cannot be mapped\n", 105 fname, lineno ); 106 return 1; 107 } 108 109 mapping = (struct ldapmapping *)ch_calloc( 2, 110 sizeof(struct ldapmapping) ); 111 if ( mapping == NULL ) { 112 fprintf( stderr, 113 "%s: line %d: out of memory\n", 114 fname, lineno ); 115 return 1; 116 } 117 ber_str2bv( src, 0, 1, &mapping[0].m_src ); 118 ber_str2bv( dst, 0, 1, &mapping[0].m_dst ); 119 mapping[1].m_src = mapping[0].m_dst; 120 mapping[1].m_dst = mapping[0].m_src; 121 122 mapping[0].m_flags = RWMMAP_F_NONE; 123 mapping[1].m_flags = RWMMAP_F_NONE; 124 125 /* 126 * schema check 127 */ 128 if ( is_oc ) { 129 if ( src[0] != '\0' ) { 130 mapping[0].m_src_oc = oc_bvfind( &mapping[0].m_src ); 131 if ( mapping[0].m_src_oc == NULL ) { 132 fprintf( stderr, 133 "%s: line %d: warning, source objectClass '%s' " 134 "should be defined in schema\n", 135 fname, lineno, src ); 136 137 /* 138 * FIXME: this should become an err 139 */ 140 mapping[0].m_src_oc = ch_malloc( sizeof( ObjectClass ) ); 141 memset( mapping[0].m_src_oc, 0, sizeof( ObjectClass ) ); 142 mapping[0].m_src_oc->soc_cname = mapping[0].m_src; 143 mapping[0].m_flags |= RWMMAP_F_FREE_SRC; 144 } 145 mapping[1].m_dst_oc = mapping[0].m_src_oc; 146 } 147 148 mapping[0].m_dst_oc = oc_bvfind( &mapping[0].m_dst ); 149 if ( mapping[0].m_dst_oc == NULL ) { 150 fprintf( stderr, 151 "%s: line %d: warning, destination objectClass '%s' " 152 "is not defined in schema\n", 153 fname, lineno, dst ); 154 155 mapping[0].m_dst_oc = oc_bvfind_undef( &mapping[0].m_dst ); 156 if ( mapping[0].m_dst_oc == NULL ) { 157 fprintf( stderr, "%s: line %d: unable to mimic destination objectClass '%s'\n", 158 fname, lineno, dst ); 159 goto error_return; 160 } 161 } 162 mapping[1].m_src_oc = mapping[0].m_dst_oc; 163 164 mapping[0].m_flags |= RWMMAP_F_IS_OC; 165 mapping[1].m_flags |= RWMMAP_F_IS_OC; 166 167 } else { 168 int rc; 169 const char *text = NULL; 170 171 if ( src[0] != '\0' ) { 172 rc = slap_bv2ad( &mapping[0].m_src, 173 &mapping[0].m_src_ad, &text ); 174 if ( rc != LDAP_SUCCESS ) { 175 fprintf( stderr, 176 "%s: line %d: warning, source attributeType '%s' " 177 "should be defined in schema\n", 178 fname, lineno, src ); 179 180 /* 181 * we create a fake "proxied" ad 182 * and add it here. 183 */ 184 185 rc = slap_bv2undef_ad( &mapping[0].m_src, 186 &mapping[0].m_src_ad, &text, 187 SLAP_AD_PROXIED ); 188 if ( rc != LDAP_SUCCESS ) { 189 fprintf( stderr, 190 "%s: line %d: source attributeType '%s': %d (%s)\n", 191 fname, lineno, src, rc, text ? text : "null" ); 192 goto error_return; 193 } 194 195 } 196 mapping[1].m_dst_ad = mapping[0].m_src_ad; 197 } 198 199 rc = slap_bv2ad( &mapping[0].m_dst, &mapping[0].m_dst_ad, &text ); 200 if ( rc != LDAP_SUCCESS ) { 201 fprintf( stderr, 202 "%s: line %d: warning, destination attributeType '%s' " 203 "is not defined in schema\n", 204 fname, lineno, dst ); 205 206 rc = slap_bv2undef_ad( &mapping[0].m_dst, 207 &mapping[0].m_dst_ad, &text, 208 SLAP_AD_PROXIED ); 209 if ( rc != LDAP_SUCCESS ) { 210 fprintf( stderr, 211 "%s: line %d: destination attributeType '%s': %d (%s)\n", 212 fname, lineno, dst, rc, text ? text : "null" ); 213 goto error_return; 214 } 215 } 216 mapping[1].m_src_ad = mapping[0].m_dst_ad; 217 } 218 219 if ( ( src[0] != '\0' && avl_find( map->map, (caddr_t)mapping, rwm_mapping_cmp ) != NULL) 220 || avl_find( map->remap, (caddr_t)&mapping[1], rwm_mapping_cmp ) != NULL) 221 { 222 fprintf( stderr, 223 "%s: line %d: duplicate mapping found.\n", 224 fname, lineno ); 225 /* FIXME: free stuff */ 226 goto error_return; 227 } 228 229 if ( src[0] != '\0' ) { 230 avl_insert( &map->map, (caddr_t)&mapping[0], 231 rwm_mapping_cmp, rwm_mapping_dup ); 232 } 233 avl_insert( &map->remap, (caddr_t)&mapping[1], 234 rwm_mapping_cmp, rwm_mapping_dup ); 235 236 success_return:; 237 return rc; 238 239 error_return:; 240 if ( mapping ) { 241 rwm_mapping_free( mapping ); 242 } 243 244 return 1; 245 } 246 247 static char * 248 rwm_suffix_massage_regexize( const char *s ) 249 { 250 char *res, *ptr; 251 const char *p, *r; 252 int i; 253 254 if ( s[0] == '\0' ) { 255 return ch_strdup( "^(.+)$" ); 256 } 257 258 for ( i = 0, p = s; 259 ( r = strchr( p, ',' ) ) != NULL; 260 p = r + 1, i++ ) 261 ; 262 263 res = ch_calloc( sizeof( char ), strlen( s ) 264 + STRLENOF( "((.+),)?" ) 265 + STRLENOF( "[ ]?" ) * i 266 + STRLENOF( "$" ) + 1 ); 267 268 ptr = lutil_strcopy( res, "((.+),)?" ); 269 for ( i = 0, p = s; 270 ( r = strchr( p, ',' ) ) != NULL; 271 p = r + 1 , i++ ) { 272 ptr = lutil_strncopy( ptr, p, r - p + 1 ); 273 ptr = lutil_strcopy( ptr, "[ ]?" ); 274 275 if ( r[ 1 ] == ' ' ) { 276 r++; 277 } 278 } 279 ptr = lutil_strcopy( ptr, p ); 280 ptr[0] = '$'; 281 ptr[1] = '\0'; 282 283 return res; 284 } 285 286 static char * 287 rwm_suffix_massage_patternize( const char *s, const char *p ) 288 { 289 ber_len_t len; 290 char *res, *ptr; 291 292 len = strlen( p ); 293 294 if ( s[ 0 ] == '\0' ) { 295 len++; 296 } 297 298 res = ch_calloc( sizeof( char ), len + STRLENOF( "%1" ) + 1 ); 299 if ( res == NULL ) { 300 return NULL; 301 } 302 303 ptr = lutil_strcopy( res, ( p[0] == '\0' ? "%2" : "%1" ) ); 304 if ( s[ 0 ] == '\0' ) { 305 ptr[ 0 ] = ','; 306 ptr++; 307 } 308 lutil_strcopy( ptr, p ); 309 310 return res; 311 } 312 313 int 314 rwm_suffix_massage_config( 315 struct rewrite_info *info, 316 struct berval *pvnc, 317 struct berval *nvnc, 318 struct berval *prnc, 319 struct berval *nrnc 320 ) 321 { 322 char *rargv[ 5 ]; 323 int line = 0; 324 325 rargv[ 0 ] = "rewriteEngine"; 326 rargv[ 1 ] = "on"; 327 rargv[ 2 ] = NULL; 328 rewrite_parse( info, "<suffix massage>", ++line, 2, rargv ); 329 330 rargv[ 0 ] = "rewriteContext"; 331 rargv[ 1 ] = "default"; 332 rargv[ 2 ] = NULL; 333 rewrite_parse( info, "<suffix massage>", ++line, 2, rargv ); 334 335 rargv[ 0 ] = "rewriteRule"; 336 rargv[ 1 ] = rwm_suffix_massage_regexize( pvnc->bv_val ); 337 rargv[ 2 ] = rwm_suffix_massage_patternize( pvnc->bv_val, prnc->bv_val ); 338 rargv[ 3 ] = ":"; 339 rargv[ 4 ] = NULL; 340 rewrite_parse( info, "<suffix massage>", ++line, 4, rargv ); 341 ch_free( rargv[ 1 ] ); 342 ch_free( rargv[ 2 ] ); 343 344 if ( BER_BVISEMPTY( pvnc ) ) { 345 rargv[ 0 ] = "rewriteRule"; 346 rargv[ 1 ] = "^$"; 347 rargv[ 2 ] = prnc->bv_val; 348 rargv[ 3 ] = ":"; 349 rargv[ 4 ] = NULL; 350 rewrite_parse( info, "<suffix massage>", ++line, 4, rargv ); 351 } 352 353 rargv[ 0 ] = "rewriteContext"; 354 rargv[ 1 ] = "searchEntryDN"; 355 rargv[ 2 ] = NULL; 356 rewrite_parse( info, "<suffix massage>", ++line, 2, rargv ); 357 358 rargv[ 0 ] = "rewriteRule"; 359 rargv[ 1 ] = rwm_suffix_massage_regexize( prnc->bv_val ); 360 rargv[ 2 ] = rwm_suffix_massage_patternize( prnc->bv_val, pvnc->bv_val ); 361 rargv[ 3 ] = ":"; 362 rargv[ 4 ] = NULL; 363 rewrite_parse( info, "<suffix massage>", ++line, 4, rargv ); 364 ch_free( rargv[ 1 ] ); 365 ch_free( rargv[ 2 ] ); 366 367 if ( BER_BVISEMPTY( prnc ) ) { 368 rargv[ 0 ] = "rewriteRule"; 369 rargv[ 1 ] = "^$"; 370 rargv[ 2 ] = pvnc->bv_val; 371 rargv[ 3 ] = ":"; 372 rargv[ 4 ] = NULL; 373 rewrite_parse( info, "<suffix massage>", ++line, 4, rargv ); 374 } 375 376 rargv[ 0 ] = "rewriteContext"; 377 rargv[ 1 ] = "matchedDN"; 378 rargv[ 2 ] = "alias"; 379 rargv[ 3 ] = "searchEntryDN"; 380 rargv[ 4 ] = NULL; 381 rewrite_parse( info, "<suffix massage>", ++line, 4, rargv ); 382 383 #ifdef RWM_REFERRAL_REWRITE 384 /* FIXME: we don't want this on by default, do we? */ 385 rargv[ 0 ] = "rewriteContext"; 386 rargv[ 1 ] = "referralDN"; 387 rargv[ 2 ] = "alias"; 388 rargv[ 3 ] = "searchEntryDN"; 389 rargv[ 4 ] = NULL; 390 rewrite_parse( info, "<suffix massage>", ++line, 4, rargv ); 391 #else /* ! RWM_REFERRAL_REWRITE */ 392 rargv[ 0 ] = "rewriteContext"; 393 rargv[ 1 ] = "referralAttrDN"; 394 rargv[ 2 ] = NULL; 395 rewrite_parse( info, "<suffix massage>", ++line, 2, rargv ); 396 397 rargv[ 0 ] = "rewriteContext"; 398 rargv[ 1 ] = "referralDN"; 399 rargv[ 2 ] = NULL; 400 rewrite_parse( info, "<suffix massage>", ++line, 2, rargv ); 401 #endif /* ! RWM_REFERRAL_REWRITE */ 402 403 rargv[ 0 ] = "rewriteContext"; 404 rargv[ 1 ] = "searchAttrDN"; 405 rargv[ 2 ] = "alias"; 406 rargv[ 3 ] = "searchEntryDN"; 407 rargv[ 4 ] = NULL; 408 rewrite_parse( info, "<suffix massage>", ++line, 4, rargv ); 409 410 return 0; 411 } 412 413 #endif /* SLAPD_OVER_RWM */ 414