diff options
Diffstat (limited to '')
| -rw-r--r-- | servers/slapd/cr.c | 501 |
1 files changed, 501 insertions, 0 deletions
diff --git a/servers/slapd/cr.c b/servers/slapd/cr.c new file mode 100644 index 0000000..11f0719 --- /dev/null +++ b/servers/slapd/cr.c @@ -0,0 +1,501 @@ +/* cr.c - content rule routines */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1998-2021 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ + +#include "portable.h" + +#include <stdio.h> + +#include <ac/ctype.h> +#include <ac/string.h> +#include <ac/socket.h> + +#include "slap.h" + +struct cindexrec { + struct berval cir_name; + ContentRule *cir_cr; +}; + +static Avlnode *cr_index = NULL; +static LDAP_STAILQ_HEAD(CRList, ContentRule) cr_list + = LDAP_STAILQ_HEAD_INITIALIZER(cr_list); + +static int +cr_index_cmp( + const void *v_cir1, + const void *v_cir2 ) +{ + const struct cindexrec *cir1 = v_cir1; + const struct cindexrec *cir2 = v_cir2; + int i = cir1->cir_name.bv_len - cir2->cir_name.bv_len; + if (i) return i; + return strcasecmp( cir1->cir_name.bv_val, cir2->cir_name.bv_val ); +} + +static int +cr_index_name_cmp( + const void *v_name, + const void *v_cir ) +{ + const struct berval *name = v_name; + const struct cindexrec *cir = v_cir; + int i = name->bv_len - cir->cir_name.bv_len; + if (i) return i; + return strncasecmp( name->bv_val, cir->cir_name.bv_val, name->bv_len ); +} + +ContentRule * +cr_find( const char *crname ) +{ + struct berval bv; + + bv.bv_val = (char *)crname; + bv.bv_len = strlen( crname ); + + return( cr_bvfind( &bv ) ); +} + +ContentRule * +cr_bvfind( struct berval *crname ) +{ + struct cindexrec *cir; + + cir = avl_find( cr_index, crname, cr_index_name_cmp ); + + if ( cir != NULL ) { + return( cir->cir_cr ); + } + + return( NULL ); +} + +static int +cr_destroy_one( ContentRule *c ) +{ + assert( c != NULL ); + + if (c->scr_auxiliaries) ldap_memfree(c->scr_auxiliaries); + if (c->scr_required) ldap_memfree(c->scr_required); + if (c->scr_allowed) ldap_memfree(c->scr_allowed); + if (c->scr_precluded) ldap_memfree(c->scr_precluded); + ldap_contentrule_free((LDAPContentRule *)c); + + return 0; +} + +void +cr_destroy( void ) +{ + ContentRule *c; + + avl_free(cr_index, ldap_memfree); + + while( !LDAP_STAILQ_EMPTY(&cr_list) ) { + c = LDAP_STAILQ_FIRST(&cr_list); + LDAP_STAILQ_REMOVE_HEAD(&cr_list, scr_next); + + cr_destroy_one( c ); + } +} + +static int +cr_insert( + ContentRule *scr, + const char **err +) +{ + struct cindexrec *cir; + char **names; + + assert( scr != NULL ); + + if ( scr->scr_oid ) { + cir = (struct cindexrec *) + ch_calloc( 1, sizeof(struct cindexrec) ); + cir->cir_name.bv_val = scr->scr_oid; + cir->cir_name.bv_len = strlen( scr->scr_oid ); + cir->cir_cr = scr; + + if ( avl_insert( &cr_index, (caddr_t) cir, + cr_index_cmp, avl_dup_error ) ) + { + *err = scr->scr_oid; + ldap_memfree(cir); + return SLAP_SCHERR_CR_DUP; + } + + /* FIX: temporal consistency check */ + assert( cr_bvfind(&cir->cir_name) != NULL ); + } + + if ( (names = scr->scr_names) ) { + while ( *names ) { + cir = (struct cindexrec *) + ch_calloc( 1, sizeof(struct cindexrec) ); + cir->cir_name.bv_val = *names; + cir->cir_name.bv_len = strlen( *names ); + cir->cir_cr = scr; + + if ( avl_insert( &cr_index, (caddr_t) cir, + cr_index_cmp, avl_dup_error ) ) + { + *err = *names; + ldap_memfree(cir); + return SLAP_SCHERR_CR_DUP; + } + + /* FIX: temporal consistency check */ + assert( cr_bvfind(&cir->cir_name) != NULL ); + + names++; + } + } + + LDAP_STAILQ_INSERT_TAIL(&cr_list, scr, scr_next); + + return 0; +} + +static int +cr_add_auxiliaries( + ContentRule *scr, + int *op, + const char **err ) +{ + int naux; + + if( scr->scr_oc_oids_aux == NULL ) return 0; + + for( naux=0; scr->scr_oc_oids_aux[naux]; naux++ ) { + /* count them */ ; + } + + scr->scr_auxiliaries = ch_calloc( naux+1, sizeof(ObjectClass *)); + + for( naux=0; scr->scr_oc_oids_aux[naux]; naux++ ) { + ObjectClass *soc = scr->scr_auxiliaries[naux] + = oc_find(scr->scr_oc_oids_aux[naux]); + if ( !soc ) { + *err = scr->scr_oc_oids_aux[naux]; + return SLAP_SCHERR_CLASS_NOT_FOUND; + } + + if( soc->soc_flags & SLAP_OC_OPERATIONAL && + soc != slap_schema.si_oc_extensibleObject ) + { + (*op)++; + } + + if( soc->soc_kind != LDAP_SCHEMA_AUXILIARY ) { + *err = scr->scr_oc_oids_aux[naux]; + return SLAP_SCHERR_CR_BAD_AUX; + } + } + + scr->scr_auxiliaries[naux] = NULL; + return 0; +} + +static int +cr_create_required( + ContentRule *scr, + int *op, + const char **err ) +{ + char **attrs = scr->scr_at_oids_must; + char **attrs1; + AttributeType *sat; + + if ( attrs ) { + attrs1 = attrs; + while ( *attrs1 ) { + sat = at_find(*attrs1); + if ( !sat ) { + *err = *attrs1; + return SLAP_SCHERR_ATTR_NOT_FOUND; + } + + if( is_at_operational( sat )) (*op)++; + + if ( at_find_in_list(sat, scr->scr_required) < 0) { + if ( at_append_to_list(sat, &scr->scr_required) ) { + *err = *attrs1; + return SLAP_SCHERR_OUTOFMEM; + } + } else { + *err = *attrs1; + return SLAP_SCHERR_CR_BAD_AT; + } + attrs1++; + } + } + return 0; +} + +static int +cr_create_allowed( + ContentRule *scr, + int *op, + const char **err ) +{ + char **attrs = scr->scr_at_oids_may; + char **attrs1; + AttributeType *sat; + + if ( attrs ) { + attrs1 = attrs; + while ( *attrs1 ) { + sat = at_find(*attrs1); + if ( !sat ) { + *err = *attrs1; + return SLAP_SCHERR_ATTR_NOT_FOUND; + } + + if( is_at_operational( sat )) (*op)++; + + if ( at_find_in_list(sat, scr->scr_required) < 0 && + at_find_in_list(sat, scr->scr_allowed) < 0 ) + { + if ( at_append_to_list(sat, &scr->scr_allowed) ) { + *err = *attrs1; + return SLAP_SCHERR_OUTOFMEM; + } + } else { + *err = *attrs1; + return SLAP_SCHERR_CR_BAD_AT; + } + attrs1++; + } + } + return 0; +} + +static int +cr_create_precluded( + ContentRule *scr, + int *op, + const char **err ) +{ + char **attrs = scr->scr_at_oids_not; + char **attrs1; + AttributeType *sat; + + if ( attrs ) { + attrs1 = attrs; + while ( *attrs1 ) { + sat = at_find(*attrs1); + if ( !sat ) { + *err = *attrs1; + return SLAP_SCHERR_ATTR_NOT_FOUND; + } + + if( is_at_operational( sat )) (*op)++; + + /* FIXME: should also make sure attribute type is not + a required attribute of the structural class or + any auxiliary class */ + if ( at_find_in_list(sat, scr->scr_required) < 0 && + at_find_in_list(sat, scr->scr_allowed) < 0 && + at_find_in_list(sat, scr->scr_precluded) < 0 ) + { + if ( at_append_to_list(sat, &scr->scr_precluded) ) { + *err = *attrs1; + return SLAP_SCHERR_OUTOFMEM; + } + } else { + *err = *attrs1; + return SLAP_SCHERR_CR_BAD_AT; + } + attrs1++; + } + } + return 0; +} + +int +cr_add( + LDAPContentRule *cr, + int user, + ContentRule **rscr, + const char **err +) +{ + ContentRule *scr; + int code; + int op = 0; + char *oidm = NULL; + + if ( cr->cr_names != NULL ) { + int i; + + for( i=0; cr->cr_names[i]; i++ ) { + if( !slap_valid_descr( cr->cr_names[i] ) ) { + return SLAP_SCHERR_BAD_DESCR; + } + } + } + + if ( !OID_LEADCHAR( cr->cr_oid[0] )) { + /* Expand OID macros */ + char *oid = oidm_find( cr->cr_oid ); + if ( !oid ) { + *err = cr->cr_oid; + return SLAP_SCHERR_OIDM; + } + if ( oid != cr->cr_oid ) { + oidm = cr->cr_oid; + cr->cr_oid = oid; + } + } + + scr = (ContentRule *) ch_calloc( 1, sizeof(ContentRule) ); + AC_MEMCPY( &scr->scr_crule, cr, sizeof(LDAPContentRule) ); + + scr->scr_oidmacro = oidm; + scr->scr_sclass = oc_find(cr->cr_oid); + if ( !scr->scr_sclass ) { + *err = cr->cr_oid; + code = SLAP_SCHERR_CLASS_NOT_FOUND; + goto fail; + } + + /* check object class usage */ + if( scr->scr_sclass->soc_kind != LDAP_SCHEMA_STRUCTURAL ) + { + *err = cr->cr_oid; + code = SLAP_SCHERR_CR_BAD_STRUCT; + goto fail; + } + + if( scr->scr_sclass->soc_flags & SLAP_OC_OPERATIONAL ) op++; + + code = cr_add_auxiliaries( scr, &op, err ); + if ( code != 0 ) goto fail; + + code = cr_create_required( scr, &op, err ); + if ( code != 0 ) goto fail; + + code = cr_create_allowed( scr, &op, err ); + if ( code != 0 ) goto fail; + + code = cr_create_precluded( scr, &op, err ); + if ( code != 0 ) goto fail; + + if( user && op ) { + code = SLAP_SCHERR_CR_BAD_AUX; + goto fail; + } + + code = cr_insert(scr,err); + if ( code == 0 && rscr ) + *rscr = scr; + return code; +fail: + ch_free( scr ); + return code; +} + +void +cr_unparse( BerVarray *res, ContentRule *start, ContentRule *end, int sys ) +{ + ContentRule *cr; + int i, num; + struct berval bv, *bva = NULL, idx; + char ibuf[32]; + + if ( !start ) + start = LDAP_STAILQ_FIRST( &cr_list ); + + /* count the result size */ + i = 0; + for ( cr=start; cr; cr=LDAP_STAILQ_NEXT(cr, scr_next)) { + if ( sys && !(cr->scr_flags & SLAP_CR_HARDCODE)) continue; + i++; + if ( cr == end ) break; + } + if (!i) return; + + num = i; + bva = ch_malloc( (num+1) * sizeof(struct berval) ); + BER_BVZERO( bva ); + idx.bv_val = ibuf; + if ( sys ) { + idx.bv_len = 0; + ibuf[0] = '\0'; + } + i = 0; + for ( cr=start; cr; cr=LDAP_STAILQ_NEXT(cr, scr_next)) { + LDAPContentRule lcr, *lcrp; + if ( sys && !(cr->scr_flags & SLAP_CR_HARDCODE)) continue; + if ( cr->scr_oidmacro ) { + lcr = cr->scr_crule; + lcr.cr_oid = cr->scr_oidmacro; + lcrp = &lcr; + } else { + lcrp = &cr->scr_crule; + } + if ( ldap_contentrule2bv( lcrp, &bv ) == NULL ) { + ber_bvarray_free( bva ); + } + if ( !sys ) { + idx.bv_len = sprintf(idx.bv_val, "{%d}", i); + } + bva[i].bv_len = idx.bv_len + bv.bv_len; + bva[i].bv_val = ch_malloc( bva[i].bv_len + 1 ); + strcpy( bva[i].bv_val, ibuf ); + strcpy( bva[i].bv_val + idx.bv_len, bv.bv_val ); + i++; + bva[i].bv_val = NULL; + ldap_memfree( bv.bv_val ); + if ( cr == end ) break; + } + *res = bva; +} + +int +cr_schema_info( Entry *e ) +{ + AttributeDescription *ad_ditContentRules + = slap_schema.si_ad_ditContentRules; + ContentRule *cr; + + struct berval val; + struct berval nval; + + LDAP_STAILQ_FOREACH(cr, &cr_list, scr_next) { + if ( ldap_contentrule2bv( &cr->scr_crule, &val ) == NULL ) { + return -1; + } + +#if 0 + if( cr->scr_flags & SLAP_CR_HIDE ) continue; +#endif +#if 0 + Debug( LDAP_DEBUG_TRACE, "Merging cr [%ld] %s\n", + (long) val.bv_len, val.bv_val, 0 ); +#endif + + nval.bv_val = cr->scr_oid; + nval.bv_len = strlen(cr->scr_oid); + + if( attr_merge_one( e, ad_ditContentRules, &val, &nval ) ) + { + return -1; + } + ldap_memfree( val.bv_val ); + } + return 0; +} |