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Diffstat (limited to 'libraries/libldap/schema.c')
| -rw-r--r-- | libraries/libldap/schema.c | 3385 |
1 files changed, 3385 insertions, 0 deletions
diff --git a/libraries/libldap/schema.c b/libraries/libldap/schema.c new file mode 100644 index 0000000..d31616a --- /dev/null +++ b/libraries/libldap/schema.c @@ -0,0 +1,3385 @@ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1998-2018 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>. + */ + +/* + * schema.c: parsing routines used by servers and clients to process + * schema definitions + */ + +#include "portable.h" + +#include <stdio.h> +#include <ac/stdlib.h> + +#include <ac/string.h> +#include <ac/time.h> + +#include "ldap-int.h" + +#include <ldap_schema.h> + +static const char EndOfInput[] = "end of input"; + +static const char * +choose_name( char *names[], const char *fallback ) +{ + return (names != NULL && names[0] != NULL) ? names[0] : fallback; +} + +LDAP_CONST char * +ldap_syntax2name( LDAPSyntax * syn ) +{ + if (!syn) return NULL; + return( syn->syn_oid ); +} + +LDAP_CONST char * +ldap_matchingrule2name( LDAPMatchingRule * mr ) +{ + if (!mr) return NULL; + return( choose_name( mr->mr_names, mr->mr_oid ) ); +} + +LDAP_CONST char * +ldap_matchingruleuse2name( LDAPMatchingRuleUse * mru ) +{ + if (!mru) return NULL; + return( choose_name( mru->mru_names, mru->mru_oid ) ); +} + +LDAP_CONST char * +ldap_attributetype2name( LDAPAttributeType * at ) +{ + if (!at) return NULL; + return( choose_name( at->at_names, at->at_oid ) ); +} + +LDAP_CONST char * +ldap_objectclass2name( LDAPObjectClass * oc ) +{ + if (!oc) return NULL; + return( choose_name( oc->oc_names, oc->oc_oid ) ); +} + +LDAP_CONST char * +ldap_contentrule2name( LDAPContentRule * cr ) +{ + if (!cr) return NULL; + return( choose_name( cr->cr_names, cr->cr_oid ) ); +} + +LDAP_CONST char * +ldap_nameform2name( LDAPNameForm * nf ) +{ + if (!nf) return NULL; + return( choose_name( nf->nf_names, nf->nf_oid ) ); +} + +LDAP_CONST char * +ldap_structurerule2name( LDAPStructureRule * sr ) +{ + if (!sr) return NULL; + return( choose_name( sr->sr_names, NULL ) ); +} + +/* + * When pretty printing the entities we will be appending to a buffer. + * Since checking for overflow, realloc'ing and checking if no error + * is extremely boring, we will use a protection layer that will let + * us blissfully ignore the error until the end. This layer is + * implemented with the help of the next type. + */ + +typedef struct safe_string { + char * val; + ber_len_t size; + ber_len_t pos; + int at_whsp; +} safe_string; + +static safe_string * +new_safe_string(int size) +{ + safe_string * ss; + + ss = LDAP_MALLOC(sizeof(safe_string)); + if ( !ss ) + return(NULL); + + ss->val = LDAP_MALLOC(size); + if ( !ss->val ) { + LDAP_FREE(ss); + return(NULL); + } + + ss->size = size; + ss->pos = 0; + ss->at_whsp = 0; + + return ss; +} + +static void +safe_string_free(safe_string * ss) +{ + if ( !ss ) + return; + LDAP_FREE(ss->val); + LDAP_FREE(ss); +} + +#if 0 /* unused */ +static char * +safe_string_val(safe_string * ss) +{ + ss->val[ss->pos] = '\0'; + return(ss->val); +} +#endif + +static char * +safe_strdup(safe_string * ss) +{ + char *ret = LDAP_MALLOC(ss->pos+1); + if (!ret) + return NULL; + AC_MEMCPY(ret, ss->val, ss->pos); + ret[ss->pos] = '\0'; + return ret; +} + +static int +append_to_safe_string(safe_string * ss, char * s) +{ + int l = strlen(s); + char * temp; + + /* + * Some runaway process is trying to append to a string that + * overflowed and we could not extend. + */ + if ( !ss->val ) + return -1; + + /* We always make sure there is at least one position available */ + if ( ss->pos + l >= ss->size-1 ) { + ss->size *= 2; + if ( ss->pos + l >= ss->size-1 ) { + ss->size = ss->pos + l + 1; + } + + temp = LDAP_REALLOC(ss->val, ss->size); + if ( !temp ) { + /* Trouble, out of memory */ + LDAP_FREE(ss->val); + return -1; + } + ss->val = temp; + } + strncpy(&ss->val[ss->pos], s, l); + ss->pos += l; + if ( ss->pos > 0 && LDAP_SPACE(ss->val[ss->pos-1]) ) + ss->at_whsp = 1; + else + ss->at_whsp = 0; + + return 0; +} + +static int +print_literal(safe_string *ss, char *s) +{ + return(append_to_safe_string(ss,s)); +} + +static int +print_whsp(safe_string *ss) +{ + if ( ss->at_whsp ) + return(append_to_safe_string(ss,"")); + else + return(append_to_safe_string(ss," ")); +} + +static int +print_numericoid(safe_string *ss, char *s) +{ + if ( s ) + return(append_to_safe_string(ss,s)); + else + return(append_to_safe_string(ss,"")); +} + +/* This one is identical to print_qdescr */ +static int +print_qdstring(safe_string *ss, char *s) +{ + print_whsp(ss); + print_literal(ss,"'"); + append_to_safe_string(ss,s); + print_literal(ss,"'"); + return(print_whsp(ss)); +} + +static int +print_qdescr(safe_string *ss, char *s) +{ + print_whsp(ss); + print_literal(ss,"'"); + append_to_safe_string(ss,s); + print_literal(ss,"'"); + return(print_whsp(ss)); +} + +static int +print_qdescrlist(safe_string *ss, char **sa) +{ + char **sp; + int ret = 0; + + for (sp=sa; *sp; sp++) { + ret = print_qdescr(ss,*sp); + } + /* If the list was empty, we return zero that is potentially + * incorrect, but since we will be still appending things, the + * overflow will be detected later. Maybe FIX. + */ + return(ret); +} + +static int +print_qdescrs(safe_string *ss, char **sa) +{ + /* The only way to represent an empty list is as a qdescrlist + * so, if the list is empty we treat it as a long list. + * Really, this is what the syntax mandates. We should not + * be here if the list was empty, but if it happens, a label + * has already been output and we cannot undo it. + */ + if ( !sa[0] || ( sa[0] && sa[1] ) ) { + print_whsp(ss); + print_literal(ss,"("/*)*/); + print_qdescrlist(ss,sa); + print_literal(ss,/*(*/")"); + return(print_whsp(ss)); + } else { + return(print_qdescr(ss,*sa)); + } +} + +static int +print_woid(safe_string *ss, char *s) +{ + print_whsp(ss); + append_to_safe_string(ss,s); + return print_whsp(ss); +} + +static int +print_oidlist(safe_string *ss, char **sa) +{ + char **sp; + + for (sp=sa; *(sp+1); sp++) { + print_woid(ss,*sp); + print_literal(ss,"$"); + } + return(print_woid(ss,*sp)); +} + +static int +print_oids(safe_string *ss, char **sa) +{ + if ( sa[0] && sa[1] ) { + print_literal(ss,"("/*)*/); + print_oidlist(ss,sa); + print_whsp(ss); + return(print_literal(ss,/*(*/")")); + } else { + return(print_woid(ss,*sa)); + } +} + +static int +print_noidlen(safe_string *ss, char *s, int l) +{ + char buf[64]; + int ret; + + ret = print_numericoid(ss,s); + if ( l ) { + snprintf(buf, sizeof buf, "{%d}",l); + ret = print_literal(ss,buf); + } + return(ret); +} + +static int +print_ruleid(safe_string *ss, int rid) +{ + char buf[64]; + snprintf(buf, sizeof buf, "%d", rid); + return print_literal(ss,buf); +} + +static int +print_ruleids(safe_string *ss, int n, int *rids) +{ + int i; + + if( n == 1 ) { + print_ruleid(ss,rids[0]); + return print_whsp(ss); + } else { + print_literal(ss,"("/*)*/); + for( i=0; i<n; i++ ) { + print_whsp(ss); + print_ruleid(ss,rids[i]); + } + print_whsp(ss); + return print_literal(ss,/*(*/")"); + } +} + + +static int +print_extensions(safe_string *ss, LDAPSchemaExtensionItem **extensions) +{ + LDAPSchemaExtensionItem **ext; + + if ( extensions ) { + print_whsp(ss); + for ( ext = extensions; *ext != NULL; ext++ ) { + print_literal(ss, (*ext)->lsei_name); + print_whsp(ss); + /* Should be print_qdstrings */ + print_qdescrs(ss, (*ext)->lsei_values); + print_whsp(ss); + } + } + + return 0; +} + +char * +ldap_syntax2str( LDAPSyntax * syn ) +{ + struct berval bv; + if (ldap_syntax2bv( syn, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_syntax2bv( LDAPSyntax * syn, struct berval *bv ) +{ + safe_string * ss; + + if ( !syn || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"("/*)*/); + print_whsp(ss); + + print_numericoid(ss, syn->syn_oid); + print_whsp(ss); + + if ( syn->syn_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,syn->syn_desc); + } + + print_whsp(ss); + + print_extensions(ss, syn->syn_extensions); + + print_literal(ss,/*(*/ ")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + +char * +ldap_matchingrule2str( LDAPMatchingRule * mr ) +{ + struct berval bv; + if (ldap_matchingrule2bv( mr, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_matchingrule2bv( LDAPMatchingRule * mr, struct berval *bv ) +{ + safe_string * ss; + + if ( !mr || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"(" /*)*/); + print_whsp(ss); + + print_numericoid(ss, mr->mr_oid); + print_whsp(ss); + + if ( mr->mr_names ) { + print_literal(ss,"NAME"); + print_qdescrs(ss,mr->mr_names); + } + + if ( mr->mr_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,mr->mr_desc); + } + + if ( mr->mr_obsolete ) { + print_literal(ss, "OBSOLETE"); + print_whsp(ss); + } + + if ( mr->mr_syntax_oid ) { + print_literal(ss,"SYNTAX"); + print_whsp(ss); + print_literal(ss, mr->mr_syntax_oid); + print_whsp(ss); + } + + print_whsp(ss); + + print_extensions(ss, mr->mr_extensions); + + print_literal(ss,/*(*/")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + +char * +ldap_matchingruleuse2str( LDAPMatchingRuleUse * mru ) +{ + struct berval bv; + if (ldap_matchingruleuse2bv( mru, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_matchingruleuse2bv( LDAPMatchingRuleUse * mru, struct berval *bv ) +{ + safe_string * ss; + + if ( !mru || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"(" /*)*/); + print_whsp(ss); + + print_numericoid(ss, mru->mru_oid); + print_whsp(ss); + + if ( mru->mru_names ) { + print_literal(ss,"NAME"); + print_qdescrs(ss,mru->mru_names); + } + + if ( mru->mru_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,mru->mru_desc); + } + + if ( mru->mru_obsolete ) { + print_literal(ss, "OBSOLETE"); + print_whsp(ss); + } + + if ( mru->mru_applies_oids ) { + print_literal(ss,"APPLIES"); + print_whsp(ss); + print_oids(ss, mru->mru_applies_oids); + print_whsp(ss); + } + + print_whsp(ss); + + print_extensions(ss, mru->mru_extensions); + + print_literal(ss,/*(*/")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + +char * +ldap_objectclass2str( LDAPObjectClass * oc ) +{ + struct berval bv; + if (ldap_objectclass2bv( oc, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_objectclass2bv( LDAPObjectClass * oc, struct berval *bv ) +{ + safe_string * ss; + + if ( !oc || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"("/*)*/); + print_whsp(ss); + + print_numericoid(ss, oc->oc_oid); + print_whsp(ss); + + if ( oc->oc_names ) { + print_literal(ss,"NAME"); + print_qdescrs(ss,oc->oc_names); + } + + if ( oc->oc_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,oc->oc_desc); + } + + if ( oc->oc_obsolete ) { + print_literal(ss, "OBSOLETE"); + print_whsp(ss); + } + + if ( oc->oc_sup_oids ) { + print_literal(ss,"SUP"); + print_whsp(ss); + print_oids(ss,oc->oc_sup_oids); + print_whsp(ss); + } + + switch (oc->oc_kind) { + case LDAP_SCHEMA_ABSTRACT: + print_literal(ss,"ABSTRACT"); + break; + case LDAP_SCHEMA_STRUCTURAL: + print_literal(ss,"STRUCTURAL"); + break; + case LDAP_SCHEMA_AUXILIARY: + print_literal(ss,"AUXILIARY"); + break; + default: + print_literal(ss,"KIND-UNKNOWN"); + break; + } + print_whsp(ss); + + if ( oc->oc_at_oids_must ) { + print_literal(ss,"MUST"); + print_whsp(ss); + print_oids(ss,oc->oc_at_oids_must); + print_whsp(ss); + } + + if ( oc->oc_at_oids_may ) { + print_literal(ss,"MAY"); + print_whsp(ss); + print_oids(ss,oc->oc_at_oids_may); + print_whsp(ss); + } + + print_whsp(ss); + + print_extensions(ss, oc->oc_extensions); + + print_literal(ss, /*(*/")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + +char * +ldap_contentrule2str( LDAPContentRule * cr ) +{ + struct berval bv; + if (ldap_contentrule2bv( cr, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_contentrule2bv( LDAPContentRule * cr, struct berval *bv ) +{ + safe_string * ss; + + if ( !cr || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"("/*)*/); + print_whsp(ss); + + print_numericoid(ss, cr->cr_oid); + print_whsp(ss); + + if ( cr->cr_names ) { + print_literal(ss,"NAME"); + print_qdescrs(ss,cr->cr_names); + } + + if ( cr->cr_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,cr->cr_desc); + } + + if ( cr->cr_obsolete ) { + print_literal(ss, "OBSOLETE"); + print_whsp(ss); + } + + if ( cr->cr_oc_oids_aux ) { + print_literal(ss,"AUX"); + print_whsp(ss); + print_oids(ss,cr->cr_oc_oids_aux); + print_whsp(ss); + } + + if ( cr->cr_at_oids_must ) { + print_literal(ss,"MUST"); + print_whsp(ss); + print_oids(ss,cr->cr_at_oids_must); + print_whsp(ss); + } + + if ( cr->cr_at_oids_may ) { + print_literal(ss,"MAY"); + print_whsp(ss); + print_oids(ss,cr->cr_at_oids_may); + print_whsp(ss); + } + + if ( cr->cr_at_oids_not ) { + print_literal(ss,"NOT"); + print_whsp(ss); + print_oids(ss,cr->cr_at_oids_not); + print_whsp(ss); + } + + print_whsp(ss); + print_extensions(ss, cr->cr_extensions); + + print_literal(ss, /*(*/")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + +char * +ldap_structurerule2str( LDAPStructureRule * sr ) +{ + struct berval bv; + if (ldap_structurerule2bv( sr, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_structurerule2bv( LDAPStructureRule * sr, struct berval *bv ) +{ + safe_string * ss; + + if ( !sr || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"("/*)*/); + print_whsp(ss); + + print_ruleid(ss, sr->sr_ruleid); + print_whsp(ss); + + if ( sr->sr_names ) { + print_literal(ss,"NAME"); + print_qdescrs(ss,sr->sr_names); + } + + if ( sr->sr_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,sr->sr_desc); + } + + if ( sr->sr_obsolete ) { + print_literal(ss, "OBSOLETE"); + print_whsp(ss); + } + + print_literal(ss,"FORM"); + print_whsp(ss); + print_woid(ss,sr->sr_nameform); + print_whsp(ss); + + if ( sr->sr_nsup_ruleids ) { + print_literal(ss,"SUP"); + print_whsp(ss); + print_ruleids(ss,sr->sr_nsup_ruleids,sr->sr_sup_ruleids); + print_whsp(ss); + } + + print_whsp(ss); + print_extensions(ss, sr->sr_extensions); + + print_literal(ss, /*(*/")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + + +char * +ldap_nameform2str( LDAPNameForm * nf ) +{ + struct berval bv; + if (ldap_nameform2bv( nf, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_nameform2bv( LDAPNameForm * nf, struct berval *bv ) +{ + safe_string * ss; + + if ( !nf || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"("/*)*/); + print_whsp(ss); + + print_numericoid(ss, nf->nf_oid); + print_whsp(ss); + + if ( nf->nf_names ) { + print_literal(ss,"NAME"); + print_qdescrs(ss,nf->nf_names); + } + + if ( nf->nf_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,nf->nf_desc); + } + + if ( nf->nf_obsolete ) { + print_literal(ss, "OBSOLETE"); + print_whsp(ss); + } + + print_literal(ss,"OC"); + print_whsp(ss); + print_woid(ss,nf->nf_objectclass); + print_whsp(ss); + + print_literal(ss,"MUST"); + print_whsp(ss); + print_oids(ss,nf->nf_at_oids_must); + print_whsp(ss); + + + if ( nf->nf_at_oids_may ) { + print_literal(ss,"MAY"); + print_whsp(ss); + print_oids(ss,nf->nf_at_oids_may); + print_whsp(ss); + } + + print_whsp(ss); + print_extensions(ss, nf->nf_extensions); + + print_literal(ss, /*(*/")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + +char * +ldap_attributetype2str( LDAPAttributeType * at ) +{ + struct berval bv; + if (ldap_attributetype2bv( at, &bv )) + return(bv.bv_val); + else + return NULL; +} + +struct berval * +ldap_attributetype2bv( LDAPAttributeType * at, struct berval *bv ) +{ + safe_string * ss; + + if ( !at || !bv ) + return NULL; + + ss = new_safe_string(256); + if ( !ss ) + return NULL; + + print_literal(ss,"("/*)*/); + print_whsp(ss); + + print_numericoid(ss, at->at_oid); + print_whsp(ss); + + if ( at->at_names ) { + print_literal(ss,"NAME"); + print_qdescrs(ss,at->at_names); + } + + if ( at->at_desc ) { + print_literal(ss,"DESC"); + print_qdstring(ss,at->at_desc); + } + + if ( at->at_obsolete ) { + print_literal(ss, "OBSOLETE"); + print_whsp(ss); + } + + if ( at->at_sup_oid ) { + print_literal(ss,"SUP"); + print_woid(ss,at->at_sup_oid); + } + + if ( at->at_equality_oid ) { + print_literal(ss,"EQUALITY"); + print_woid(ss,at->at_equality_oid); + } + + if ( at->at_ordering_oid ) { + print_literal(ss,"ORDERING"); + print_woid(ss,at->at_ordering_oid); + } + + if ( at->at_substr_oid ) { + print_literal(ss,"SUBSTR"); + print_woid(ss,at->at_substr_oid); + } + + if ( at->at_syntax_oid ) { + print_literal(ss,"SYNTAX"); + print_whsp(ss); + print_noidlen(ss,at->at_syntax_oid,at->at_syntax_len); + print_whsp(ss); + } + + if ( at->at_single_value == LDAP_SCHEMA_YES ) { + print_literal(ss,"SINGLE-VALUE"); + print_whsp(ss); + } + + if ( at->at_collective == LDAP_SCHEMA_YES ) { + print_literal(ss,"COLLECTIVE"); + print_whsp(ss); + } + + if ( at->at_no_user_mod == LDAP_SCHEMA_YES ) { + print_literal(ss,"NO-USER-MODIFICATION"); + print_whsp(ss); + } + + if ( at->at_usage != LDAP_SCHEMA_USER_APPLICATIONS ) { + print_literal(ss,"USAGE"); + print_whsp(ss); + switch (at->at_usage) { + case LDAP_SCHEMA_DIRECTORY_OPERATION: + print_literal(ss,"directoryOperation"); + break; + case LDAP_SCHEMA_DISTRIBUTED_OPERATION: + print_literal(ss,"distributedOperation"); + break; + case LDAP_SCHEMA_DSA_OPERATION: + print_literal(ss,"dSAOperation"); + break; + default: + print_literal(ss,"UNKNOWN"); + break; + } + } + + print_whsp(ss); + + print_extensions(ss, at->at_extensions); + + print_literal(ss,/*(*/")"); + + bv->bv_val = safe_strdup(ss); + bv->bv_len = ss->pos; + safe_string_free(ss); + return(bv); +} + +/* + * Now come the parsers. There is one parser for each entity type: + * objectclasses, attributetypes, etc. + * + * Each of them is written as a recursive-descent parser, except that + * none of them is really recursive. But the idea is kept: there + * is one routine per non-terminal that eithers gobbles lexical tokens + * or calls lower-level routines, etc. + * + * The scanner is implemented in the routine get_token. Actually, + * get_token is more than a scanner and will return tokens that are + * in fact non-terminals in the grammar. So you can see the whole + * approach as the combination of a low-level bottom-up recognizer + * combined with a scanner and a number of top-down parsers. Or just + * consider that the real grammars recognized by the parsers are not + * those of the standards. As a matter of fact, our parsers are more + * liberal than the spec when there is no ambiguity. + * + * The difference is pretty academic (modulo bugs or incorrect + * interpretation of the specs). + */ + +typedef enum tk_t { + TK_NOENDQUOTE = -2, + TK_OUTOFMEM = -1, + TK_EOS = 0, + TK_UNEXPCHAR = 1, + TK_BAREWORD = 2, + TK_QDSTRING = 3, + TK_LEFTPAREN = 4, + TK_RIGHTPAREN = 5, + TK_DOLLAR = 6, + TK_QDESCR = TK_QDSTRING +} tk_t; + +static tk_t +get_token( const char ** sp, char ** token_val ) +{ + tk_t kind; + const char * p; + const char * q; + char * res; + + *token_val = NULL; + switch (**sp) { + case '\0': + kind = TK_EOS; + (*sp)++; + break; + case '(': + kind = TK_LEFTPAREN; + (*sp)++; + break; + case ')': + kind = TK_RIGHTPAREN; + (*sp)++; + break; + case '$': + kind = TK_DOLLAR; + (*sp)++; + break; + case '\'': + kind = TK_QDSTRING; + (*sp)++; + p = *sp; + while ( **sp != '\'' && **sp != '\0' ) + (*sp)++; + if ( **sp == '\'' ) { + q = *sp; + res = LDAP_MALLOC(q-p+1); + if ( !res ) { + kind = TK_OUTOFMEM; + } else { + strncpy(res,p,q-p); + res[q-p] = '\0'; + *token_val = res; + } + (*sp)++; + } else { + kind = TK_NOENDQUOTE; + } + break; + default: + kind = TK_BAREWORD; + p = *sp; + while ( !LDAP_SPACE(**sp) && + **sp != '(' && + **sp != ')' && + **sp != '$' && + **sp != '\'' && + /* for suggested minimum upper bound on the number + * of characters (RFC 4517) */ + **sp != '{' && + **sp != '\0' ) + (*sp)++; + q = *sp; + res = LDAP_MALLOC(q-p+1); + if ( !res ) { + kind = TK_OUTOFMEM; + } else { + strncpy(res,p,q-p); + res[q-p] = '\0'; + *token_val = res; + } + break; +/* kind = TK_UNEXPCHAR; */ +/* break; */ + } + + return kind; +} + +/* Gobble optional whitespace */ +static void +parse_whsp(const char **sp) +{ + while (LDAP_SPACE(**sp)) + (*sp)++; +} + +/* TBC:!! + * General note for all parsers: to guarantee the algorithm halts they + * must always advance the pointer even when an error is found. For + * this one is not that important since an error here is fatal at the + * upper layers, but it is a simple strategy that will not get in + * endless loops. + */ + +/* Parse a sequence of dot-separated decimal strings */ +char * +ldap_int_parse_numericoid(const char **sp, int *code, const int flags) +{ + char * res = NULL; + const char * start = *sp; + int len; + int quoted = 0; + + /* Netscape puts the SYNTAX value in quotes (incorrectly) */ + if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && **sp == '\'' ) { + quoted = 1; + (*sp)++; + start++; + } + /* Each iteration of this loop gets one decimal string */ + while (**sp) { + if ( !LDAP_DIGIT(**sp) ) { + /* + * Initial char is not a digit or char after dot is + * not a digit + */ + *code = LDAP_SCHERR_NODIGIT; + return NULL; + } + (*sp)++; + while ( LDAP_DIGIT(**sp) ) + (*sp)++; + if ( **sp != '.' ) + break; + /* Otherwise, gobble the dot and loop again */ + (*sp)++; + } + /* Now *sp points at the char past the numericoid. Perfect. */ + len = *sp - start; + if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && quoted ) { + if ( **sp == '\'' ) { + (*sp)++; + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + return NULL; + } + } + if (flags & LDAP_SCHEMA_SKIP) { + res = (char *)start; + } else { + res = LDAP_MALLOC(len+1); + if (!res) { + *code = LDAP_SCHERR_OUTOFMEM; + return(NULL); + } + strncpy(res,start,len); + res[len] = '\0'; + } + return(res); +} + +/* Parse a sequence of dot-separated decimal strings */ +int +ldap_int_parse_ruleid(const char **sp, int *code, const int flags, int *ruleid) +{ + *ruleid=0; + + if ( !LDAP_DIGIT(**sp) ) { + *code = LDAP_SCHERR_NODIGIT; + return -1; + } + *ruleid = (**sp) - '0'; + (*sp)++; + + while ( LDAP_DIGIT(**sp) ) { + *ruleid *= 10; + *ruleid += (**sp) - '0'; + (*sp)++; + } + + return 0; +} + +/* Parse a qdescr or a list of them enclosed in () */ +static char ** +parse_qdescrs(const char **sp, int *code) +{ + char ** res; + char ** res1; + tk_t kind; + char * sval; + int size; + int pos; + + parse_whsp(sp); + kind = get_token(sp,&sval); + if ( kind == TK_LEFTPAREN ) { + /* Let's presume there will be at least 2 entries */ + size = 3; + res = LDAP_CALLOC(3,sizeof(char *)); + if ( !res ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + pos = 0; + while (1) { + parse_whsp(sp); + kind = get_token(sp,&sval); + if ( kind == TK_RIGHTPAREN ) + break; + if ( kind == TK_QDESCR ) { + if ( pos == size-2 ) { + size++; + res1 = LDAP_REALLOC(res,size*sizeof(char *)); + if ( !res1 ) { + LDAP_VFREE(res); + LDAP_FREE(sval); + *code = LDAP_SCHERR_OUTOFMEM; + return(NULL); + } + res = res1; + } + res[pos++] = sval; + res[pos] = NULL; + parse_whsp(sp); + } else { + LDAP_VFREE(res); + LDAP_FREE(sval); + *code = LDAP_SCHERR_UNEXPTOKEN; + return(NULL); + } + } + parse_whsp(sp); + return(res); + } else if ( kind == TK_QDESCR ) { + res = LDAP_CALLOC(2,sizeof(char *)); + if ( !res ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + res[0] = sval; + res[1] = NULL; + parse_whsp(sp); + return res; + } else { + LDAP_FREE(sval); + *code = LDAP_SCHERR_BADNAME; + return NULL; + } +} + +/* Parse a woid */ +static char * +parse_woid(const char **sp, int *code) +{ + char * sval; + tk_t kind; + + parse_whsp(sp); + kind = get_token(sp, &sval); + if ( kind != TK_BAREWORD ) { + LDAP_FREE(sval); + *code = LDAP_SCHERR_UNEXPTOKEN; + return NULL; + } + parse_whsp(sp); + return sval; +} + +/* Parse a noidlen */ +static char * +parse_noidlen(const char **sp, int *code, int *len, int flags) +{ + char * sval; + const char *savepos; + int quoted = 0; + int allow_quoted = ( flags & LDAP_SCHEMA_ALLOW_QUOTED ); + int allow_oidmacro = ( flags & LDAP_SCHEMA_ALLOW_OID_MACRO ); + + *len = 0; + /* Netscape puts the SYNTAX value in quotes (incorrectly) */ + if ( allow_quoted && **sp == '\'' ) { + quoted = 1; + (*sp)++; + } + savepos = *sp; + sval = ldap_int_parse_numericoid(sp, code, 0); + if ( !sval ) { + if ( allow_oidmacro + && *sp == savepos + && *code == LDAP_SCHERR_NODIGIT ) + { + if ( get_token(sp, &sval) != TK_BAREWORD ) { + if ( sval != NULL ) { + LDAP_FREE(sval); + } + return NULL; + } + } else { + return NULL; + } + } + if ( **sp == '{' /*}*/ ) { + (*sp)++; + *len = atoi(*sp); + while ( LDAP_DIGIT(**sp) ) + (*sp)++; + if ( **sp != /*{*/ '}' ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + LDAP_FREE(sval); + return NULL; + } + (*sp)++; + } + if ( allow_quoted && quoted ) { + if ( **sp == '\'' ) { + (*sp)++; + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + LDAP_FREE(sval); + return NULL; + } + } + return sval; +} + +/* + * Next routine will accept a qdstring in place of an oid if + * allow_quoted is set. This is necessary to interoperate with + * Netscape Directory server that will improperly quote each oid (at + * least those of the descr kind) in the SUP clause. + */ + +/* Parse a woid or a $-separated list of them enclosed in () */ +static char ** +parse_oids(const char **sp, int *code, const int allow_quoted) +{ + char ** res; + char ** res1; + tk_t kind; + char * sval; + int size; + int pos; + + /* + * Strictly speaking, doing this here accepts whsp before the + * ( at the begining of an oidlist, but this is harmless. Also, + * we are very liberal in what we accept as an OID. Maybe + * refine later. + */ + parse_whsp(sp); + kind = get_token(sp,&sval); + if ( kind == TK_LEFTPAREN ) { + /* Let's presume there will be at least 2 entries */ + size = 3; + res = LDAP_CALLOC(3,sizeof(char *)); + if ( !res ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + pos = 0; + parse_whsp(sp); + kind = get_token(sp,&sval); + if ( kind == TK_BAREWORD || + ( allow_quoted && kind == TK_QDSTRING ) ) { + res[pos++] = sval; + res[pos] = NULL; + } else if ( kind == TK_RIGHTPAREN ) { + /* FIXME: be liberal in what we accept... */ + parse_whsp(sp); + LDAP_FREE(res); + return NULL; + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + LDAP_FREE(sval); + LDAP_VFREE(res); + return NULL; + } + parse_whsp(sp); + while (1) { + kind = get_token(sp,&sval); + if ( kind == TK_RIGHTPAREN ) + break; + if ( kind == TK_DOLLAR ) { + parse_whsp(sp); + kind = get_token(sp,&sval); + if ( kind == TK_BAREWORD || + ( allow_quoted && + kind == TK_QDSTRING ) ) { + if ( pos == size-2 ) { + size++; + res1 = LDAP_REALLOC(res,size*sizeof(char *)); + if ( !res1 ) { + LDAP_FREE(sval); + LDAP_VFREE(res); + *code = LDAP_SCHERR_OUTOFMEM; + return(NULL); + } + res = res1; + } + res[pos++] = sval; + res[pos] = NULL; + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + LDAP_FREE(sval); + LDAP_VFREE(res); + return NULL; + } + parse_whsp(sp); + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + LDAP_FREE(sval); + LDAP_VFREE(res); + return NULL; + } + } + parse_whsp(sp); + return(res); + } else if ( kind == TK_BAREWORD || + ( allow_quoted && kind == TK_QDSTRING ) ) { + res = LDAP_CALLOC(2,sizeof(char *)); + if ( !res ) { + LDAP_FREE(sval); + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + res[0] = sval; + res[1] = NULL; + parse_whsp(sp); + return res; + } else { + LDAP_FREE(sval); + *code = LDAP_SCHERR_BADNAME; + return NULL; + } +} + +static int +add_extension(LDAPSchemaExtensionItem ***extensions, + char * name, char ** values) +{ + int n; + LDAPSchemaExtensionItem **tmp, *ext; + + ext = LDAP_CALLOC(1, sizeof(LDAPSchemaExtensionItem)); + if ( !ext ) + return 1; + ext->lsei_name = name; + ext->lsei_values = values; + + if ( !*extensions ) { + *extensions = + LDAP_CALLOC(2, sizeof(LDAPSchemaExtensionItem *)); + if ( !*extensions ) { + LDAP_FREE( ext ); + return 1; + } + n = 0; + } else { + for ( n=0; (*extensions)[n] != NULL; n++ ) + ; + tmp = LDAP_REALLOC(*extensions, + (n+2)*sizeof(LDAPSchemaExtensionItem *)); + if ( !tmp ) { + LDAP_FREE( ext ); + return 1; + } + *extensions = tmp; + } + (*extensions)[n] = ext; + (*extensions)[n+1] = NULL; + return 0; +} + +static void +free_extensions(LDAPSchemaExtensionItem **extensions) +{ + LDAPSchemaExtensionItem **ext; + + if ( extensions ) { + for ( ext = extensions; *ext != NULL; ext++ ) { + LDAP_FREE((*ext)->lsei_name); + LDAP_VFREE((*ext)->lsei_values); + LDAP_FREE(*ext); + } + LDAP_FREE(extensions); + } +} + +void +ldap_syntax_free( LDAPSyntax * syn ) +{ + if ( !syn ) return; + LDAP_FREE(syn->syn_oid); + if (syn->syn_names) LDAP_VFREE(syn->syn_names); + if (syn->syn_desc) LDAP_FREE(syn->syn_desc); + free_extensions(syn->syn_extensions); + LDAP_FREE(syn); +} + +LDAPSyntax * +ldap_str2syntax( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + LDAPSyntax * syn; + char ** ext_vals; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + syn = LDAP_CALLOC(1,sizeof(LDAPSyntax)); + + if ( !syn ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + LDAP_FREE(sval); + *code = LDAP_SCHERR_NOLEFTPAREN; + ldap_syntax_free(syn); + return NULL; + } + + parse_whsp(&ss); + syn->syn_oid = ldap_int_parse_numericoid(&ss,code,0); + if ( !syn->syn_oid ) { + *errp = ss; + ldap_syntax_free(syn); + return NULL; + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal and accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_syntax_free(syn); + return NULL; + case TK_RIGHTPAREN: + return syn; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_syntax_free(syn); + return(NULL); + } + seen_name = 1; + syn->syn_names = parse_qdescrs(&ss,code); + if ( !syn->syn_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_syntax_free(syn); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_syntax_free(syn); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_syntax_free(syn); + return NULL; + } + syn->syn_desc = sval; + parse_whsp(&ss); + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + if ( !ext_vals ) { + *errp = ss; + ldap_syntax_free(syn); + return NULL; + } + if ( add_extension(&syn->syn_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_syntax_free(syn); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_syntax_free(syn); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_syntax_free(syn); + return NULL; + } + } +} + +void +ldap_matchingrule_free( LDAPMatchingRule * mr ) +{ + if (!mr) return; + LDAP_FREE(mr->mr_oid); + if (mr->mr_names) LDAP_VFREE(mr->mr_names); + if (mr->mr_desc) LDAP_FREE(mr->mr_desc); + if (mr->mr_syntax_oid) LDAP_FREE(mr->mr_syntax_oid); + free_extensions(mr->mr_extensions); + LDAP_FREE(mr); +} + +LDAPMatchingRule * +ldap_str2matchingrule( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + int seen_obsolete = 0; + int seen_syntax = 0; + LDAPMatchingRule * mr; + char ** ext_vals; + const char * savepos; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + mr = LDAP_CALLOC(1,sizeof(LDAPMatchingRule)); + + if ( !mr ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + *code = LDAP_SCHERR_NOLEFTPAREN; + LDAP_FREE(sval); + ldap_matchingrule_free(mr); + return NULL; + } + + parse_whsp(&ss); + savepos = ss; + mr->mr_oid = ldap_int_parse_numericoid(&ss,code,flags); + if ( !mr->mr_oid ) { + if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) { + /* Backtracking */ + ss = savepos; + kind = get_token(&ss,&sval); + if ( kind == TK_BAREWORD ) { + if ( !strcasecmp(sval, "NAME") || + !strcasecmp(sval, "DESC") || + !strcasecmp(sval, "OBSOLETE") || + !strcasecmp(sval, "SYNTAX") || + !strncasecmp(sval, "X-", 2) ) { + /* Missing OID, backtrack */ + ss = savepos; + } else { + /* Non-numerical OID, ignore */ + } + } + LDAP_FREE(sval); + } else { + *errp = ss; + ldap_matchingrule_free(mr); + return NULL; + } + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal and accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_matchingrule_free(mr); + return NULL; + case TK_RIGHTPAREN: + if( !seen_syntax ) { + *code = LDAP_SCHERR_MISSING; + ldap_matchingrule_free(mr); + return NULL; + } + return mr; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingrule_free(mr); + return(NULL); + } + seen_name = 1; + mr->mr_names = parse_qdescrs(&ss,code); + if ( !mr->mr_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_matchingrule_free(mr); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingrule_free(mr); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingrule_free(mr); + return NULL; + } + mr->mr_desc = sval; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OBSOLETE") ) { + LDAP_FREE(sval); + if ( seen_obsolete ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingrule_free(mr); + return(NULL); + } + seen_obsolete = 1; + mr->mr_obsolete = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"SYNTAX") ) { + LDAP_FREE(sval); + if ( seen_syntax ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingrule_free(mr); + return(NULL); + } + seen_syntax = 1; + parse_whsp(&ss); + mr->mr_syntax_oid = + ldap_int_parse_numericoid(&ss,code,flags); + if ( !mr->mr_syntax_oid ) { + *errp = ss; + ldap_matchingrule_free(mr); + return NULL; + } + parse_whsp(&ss); + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + if ( !ext_vals ) { + *errp = ss; + ldap_matchingrule_free(mr); + return NULL; + } + if ( add_extension(&mr->mr_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingrule_free(mr); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingrule_free(mr); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingrule_free(mr); + return NULL; + } + } +} + +void +ldap_matchingruleuse_free( LDAPMatchingRuleUse * mru ) +{ + if (!mru) return; + LDAP_FREE(mru->mru_oid); + if (mru->mru_names) LDAP_VFREE(mru->mru_names); + if (mru->mru_desc) LDAP_FREE(mru->mru_desc); + if (mru->mru_applies_oids) LDAP_VFREE(mru->mru_applies_oids); + free_extensions(mru->mru_extensions); + LDAP_FREE(mru); +} + +LDAPMatchingRuleUse * +ldap_str2matchingruleuse( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + int seen_obsolete = 0; + int seen_applies = 0; + LDAPMatchingRuleUse * mru; + char ** ext_vals; + const char * savepos; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + mru = LDAP_CALLOC(1,sizeof(LDAPMatchingRuleUse)); + + if ( !mru ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + *code = LDAP_SCHERR_NOLEFTPAREN; + LDAP_FREE(sval); + ldap_matchingruleuse_free(mru); + return NULL; + } + + parse_whsp(&ss); + savepos = ss; + mru->mru_oid = ldap_int_parse_numericoid(&ss,code,flags); + if ( !mru->mru_oid ) { + if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) { + /* Backtracking */ + ss = savepos; + kind = get_token(&ss,&sval); + if ( kind == TK_BAREWORD ) { + if ( !strcasecmp(sval, "NAME") || + !strcasecmp(sval, "DESC") || + !strcasecmp(sval, "OBSOLETE") || + !strcasecmp(sval, "APPLIES") || + !strncasecmp(sval, "X-", 2) ) { + /* Missing OID, backtrack */ + ss = savepos; + } else { + /* Non-numerical OID, ignore */ + } + } + LDAP_FREE(sval); + } else { + *errp = ss; + ldap_matchingruleuse_free(mru); + return NULL; + } + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal and accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_matchingruleuse_free(mru); + return NULL; + case TK_RIGHTPAREN: + if( !seen_applies ) { + *code = LDAP_SCHERR_MISSING; + ldap_matchingruleuse_free(mru); + return NULL; + } + return mru; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingruleuse_free(mru); + return(NULL); + } + seen_name = 1; + mru->mru_names = parse_qdescrs(&ss,code); + if ( !mru->mru_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_matchingruleuse_free(mru); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingruleuse_free(mru); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingruleuse_free(mru); + return NULL; + } + mru->mru_desc = sval; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OBSOLETE") ) { + LDAP_FREE(sval); + if ( seen_obsolete ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingruleuse_free(mru); + return(NULL); + } + seen_obsolete = 1; + mru->mru_obsolete = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"APPLIES") ) { + LDAP_FREE(sval); + if ( seen_applies ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_matchingruleuse_free(mru); + return(NULL); + } + seen_applies = 1; + mru->mru_applies_oids = parse_oids(&ss, + code, + flags); + if ( !mru->mru_applies_oids && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_matchingruleuse_free(mru); + return NULL; + } + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + if ( !ext_vals ) { + *errp = ss; + ldap_matchingruleuse_free(mru); + return NULL; + } + if ( add_extension(&mru->mru_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingruleuse_free(mru); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingruleuse_free(mru); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_matchingruleuse_free(mru); + return NULL; + } + } +} + +void +ldap_attributetype_free(LDAPAttributeType * at) +{ + if (!at) return; + LDAP_FREE(at->at_oid); + if (at->at_names) LDAP_VFREE(at->at_names); + if (at->at_desc) LDAP_FREE(at->at_desc); + if (at->at_sup_oid) LDAP_FREE(at->at_sup_oid); + if (at->at_equality_oid) LDAP_FREE(at->at_equality_oid); + if (at->at_ordering_oid) LDAP_FREE(at->at_ordering_oid); + if (at->at_substr_oid) LDAP_FREE(at->at_substr_oid); + if (at->at_syntax_oid) LDAP_FREE(at->at_syntax_oid); + free_extensions(at->at_extensions); + LDAP_FREE(at); +} + +LDAPAttributeType * +ldap_str2attributetype( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + int seen_obsolete = 0; + int seen_sup = 0; + int seen_equality = 0; + int seen_ordering = 0; + int seen_substr = 0; + int seen_syntax = 0; + int seen_usage = 0; + LDAPAttributeType * at; + char ** ext_vals; + const char * savepos; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + at = LDAP_CALLOC(1,sizeof(LDAPAttributeType)); + + if ( !at ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + *code = LDAP_SCHERR_NOLEFTPAREN; + LDAP_FREE(sval); + ldap_attributetype_free(at); + return NULL; + } + + /* + * Definitions MUST begin with an OID in the numericoid format. + * However, this routine is used by clients to parse the response + * from servers and very well known servers will provide an OID + * in the wrong format or even no OID at all. We do our best to + * extract info from those servers. + */ + parse_whsp(&ss); + savepos = ss; + at->at_oid = ldap_int_parse_numericoid(&ss,code,0); + if ( !at->at_oid ) { + if ( ( flags & ( LDAP_SCHEMA_ALLOW_NO_OID + | LDAP_SCHEMA_ALLOW_OID_MACRO ) ) + && (ss == savepos) ) + { + /* Backtracking */ + ss = savepos; + kind = get_token(&ss,&sval); + if ( kind == TK_BAREWORD ) { + if ( !strcasecmp(sval, "NAME") || + !strcasecmp(sval, "DESC") || + !strcasecmp(sval, "OBSOLETE") || + !strcasecmp(sval, "SUP") || + !strcasecmp(sval, "EQUALITY") || + !strcasecmp(sval, "ORDERING") || + !strcasecmp(sval, "SUBSTR") || + !strcasecmp(sval, "SYNTAX") || + !strcasecmp(sval, "SINGLE-VALUE") || + !strcasecmp(sval, "COLLECTIVE") || + !strcasecmp(sval, "NO-USER-MODIFICATION") || + !strcasecmp(sval, "USAGE") || + !strncasecmp(sval, "X-", 2) ) + { + /* Missing OID, backtrack */ + ss = savepos; + } else if ( flags + & LDAP_SCHEMA_ALLOW_OID_MACRO) + { + /* Non-numerical OID ... */ + int len = ss-savepos; + at->at_oid = LDAP_MALLOC(len+1); + strncpy(at->at_oid, savepos, len); + at->at_oid[len] = 0; + } + } + LDAP_FREE(sval); + } else { + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal and accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_attributetype_free(at); + return NULL; + case TK_RIGHTPAREN: + return at; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_name = 1; + at->at_names = parse_qdescrs(&ss,code); + if ( !at->at_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_attributetype_free(at); + return NULL; + } + at->at_desc = sval; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OBSOLETE") ) { + LDAP_FREE(sval); + if ( seen_obsolete ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_obsolete = 1; + at->at_obsolete = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"SUP") ) { + LDAP_FREE(sval); + if ( seen_sup ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_sup = 1; + at->at_sup_oid = parse_woid(&ss,code); + if ( !at->at_sup_oid ) { + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } else if ( !strcasecmp(sval,"EQUALITY") ) { + LDAP_FREE(sval); + if ( seen_equality ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_equality = 1; + at->at_equality_oid = parse_woid(&ss,code); + if ( !at->at_equality_oid ) { + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } else if ( !strcasecmp(sval,"ORDERING") ) { + LDAP_FREE(sval); + if ( seen_ordering ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_ordering = 1; + at->at_ordering_oid = parse_woid(&ss,code); + if ( !at->at_ordering_oid ) { + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } else if ( !strcasecmp(sval,"SUBSTR") ) { + LDAP_FREE(sval); + if ( seen_substr ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_substr = 1; + at->at_substr_oid = parse_woid(&ss,code); + if ( !at->at_substr_oid ) { + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } else if ( !strcasecmp(sval,"SYNTAX") ) { + LDAP_FREE(sval); + if ( seen_syntax ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_syntax = 1; + parse_whsp(&ss); + savepos = ss; + at->at_syntax_oid = + parse_noidlen(&ss, + code, + &at->at_syntax_len, + flags); + if ( !at->at_syntax_oid ) { + if ( flags & LDAP_SCHEMA_ALLOW_OID_MACRO ) { + kind = get_token(&ss,&sval); + if (kind == TK_BAREWORD) + { + char *sp = strchr(sval, '{'); + at->at_syntax_oid = sval; + if (sp) + { + *sp++ = 0; + at->at_syntax_len = atoi(sp); + while ( LDAP_DIGIT(*sp) ) + sp++; + if ( *sp != '}' ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } + } + } else { + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + } + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"SINGLE-VALUE") ) { + LDAP_FREE(sval); + if ( at->at_single_value ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + at->at_single_value = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"COLLECTIVE") ) { + LDAP_FREE(sval); + if ( at->at_collective ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + at->at_collective = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"NO-USER-MODIFICATION") ) { + LDAP_FREE(sval); + if ( at->at_no_user_mod ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + at->at_no_user_mod = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"USAGE") ) { + LDAP_FREE(sval); + if ( seen_usage ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_attributetype_free(at); + return(NULL); + } + seen_usage = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_BAREWORD ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_attributetype_free(at); + return NULL; + } + if ( !strcasecmp(sval,"userApplications") ) + at->at_usage = + LDAP_SCHEMA_USER_APPLICATIONS; + else if ( !strcasecmp(sval,"directoryOperation") ) + at->at_usage = + LDAP_SCHEMA_DIRECTORY_OPERATION; + else if ( !strcasecmp(sval,"distributedOperation") ) + at->at_usage = + LDAP_SCHEMA_DISTRIBUTED_OPERATION; + else if ( !strcasecmp(sval,"dSAOperation") ) + at->at_usage = + LDAP_SCHEMA_DSA_OPERATION; + else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_attributetype_free(at); + return NULL; + } + LDAP_FREE(sval); + parse_whsp(&ss); + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + if ( !ext_vals ) { + *errp = ss; + ldap_attributetype_free(at); + return NULL; + } + if ( add_extension(&at->at_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_attributetype_free(at); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_attributetype_free(at); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_attributetype_free(at); + return NULL; + } + } +} + +void +ldap_objectclass_free(LDAPObjectClass * oc) +{ + if (!oc) return; + LDAP_FREE(oc->oc_oid); + if (oc->oc_names) LDAP_VFREE(oc->oc_names); + if (oc->oc_desc) LDAP_FREE(oc->oc_desc); + if (oc->oc_sup_oids) LDAP_VFREE(oc->oc_sup_oids); + if (oc->oc_at_oids_must) LDAP_VFREE(oc->oc_at_oids_must); + if (oc->oc_at_oids_may) LDAP_VFREE(oc->oc_at_oids_may); + free_extensions(oc->oc_extensions); + LDAP_FREE(oc); +} + +LDAPObjectClass * +ldap_str2objectclass( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + int seen_obsolete = 0; + int seen_sup = 0; + int seen_kind = 0; + int seen_must = 0; + int seen_may = 0; + LDAPObjectClass * oc; + char ** ext_vals; + const char * savepos; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + oc = LDAP_CALLOC(1,sizeof(LDAPObjectClass)); + + if ( !oc ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + oc->oc_kind = LDAP_SCHEMA_STRUCTURAL; + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + *code = LDAP_SCHERR_NOLEFTPAREN; + LDAP_FREE(sval); + ldap_objectclass_free(oc); + return NULL; + } + + /* + * Definitions MUST begin with an OID in the numericoid format. + * However, this routine is used by clients to parse the response + * from servers and very well known servers will provide an OID + * in the wrong format or even no OID at all. We do our best to + * extract info from those servers. + */ + parse_whsp(&ss); + savepos = ss; + oc->oc_oid = ldap_int_parse_numericoid(&ss,code,0); + if ( !oc->oc_oid ) { + if ( (flags & LDAP_SCHEMA_ALLOW_ALL) && (ss == savepos) ) { + /* Backtracking */ + ss = savepos; + kind = get_token(&ss,&sval); + if ( kind == TK_BAREWORD ) { + if ( !strcasecmp(sval, "NAME") || + !strcasecmp(sval, "DESC") || + !strcasecmp(sval, "OBSOLETE") || + !strcasecmp(sval, "SUP") || + !strcasecmp(sval, "ABSTRACT") || + !strcasecmp(sval, "STRUCTURAL") || + !strcasecmp(sval, "AUXILIARY") || + !strcasecmp(sval, "MUST") || + !strcasecmp(sval, "MAY") || + !strncasecmp(sval, "X-", 2) ) { + /* Missing OID, backtrack */ + ss = savepos; + } else if ( flags & + LDAP_SCHEMA_ALLOW_OID_MACRO ) { + /* Non-numerical OID, ignore */ + int len = ss-savepos; + oc->oc_oid = LDAP_MALLOC(len+1); + strncpy(oc->oc_oid, savepos, len); + oc->oc_oid[len] = 0; + } + } + LDAP_FREE(sval); + *code = 0; + } else { + *errp = ss; + ldap_objectclass_free(oc); + return NULL; + } + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal an accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_objectclass_free(oc); + return NULL; + case TK_RIGHTPAREN: + return oc; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_name = 1; + oc->oc_names = parse_qdescrs(&ss,code); + if ( !oc->oc_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_objectclass_free(oc); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_objectclass_free(oc); + return NULL; + } + oc->oc_desc = sval; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OBSOLETE") ) { + LDAP_FREE(sval); + if ( seen_obsolete ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_obsolete = 1; + oc->oc_obsolete = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"SUP") ) { + LDAP_FREE(sval); + if ( seen_sup ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_sup = 1; + oc->oc_sup_oids = parse_oids(&ss, + code, + flags); + if ( !oc->oc_sup_oids && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_objectclass_free(oc); + return NULL; + } + *code = 0; + } else if ( !strcasecmp(sval,"ABSTRACT") ) { + LDAP_FREE(sval); + if ( seen_kind ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_kind = 1; + oc->oc_kind = LDAP_SCHEMA_ABSTRACT; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"STRUCTURAL") ) { + LDAP_FREE(sval); + if ( seen_kind ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_kind = 1; + oc->oc_kind = LDAP_SCHEMA_STRUCTURAL; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"AUXILIARY") ) { + LDAP_FREE(sval); + if ( seen_kind ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_kind = 1; + oc->oc_kind = LDAP_SCHEMA_AUXILIARY; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"MUST") ) { + LDAP_FREE(sval); + if ( seen_must ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_must = 1; + oc->oc_at_oids_must = parse_oids(&ss,code,0); + if ( !oc->oc_at_oids_must && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_objectclass_free(oc); + return NULL; + } + *code = 0; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"MAY") ) { + LDAP_FREE(sval); + if ( seen_may ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_objectclass_free(oc); + return(NULL); + } + seen_may = 1; + oc->oc_at_oids_may = parse_oids(&ss,code,0); + if ( !oc->oc_at_oids_may && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_objectclass_free(oc); + return NULL; + } + *code = 0; + parse_whsp(&ss); + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + *code = 0; + if ( !ext_vals ) { + *errp = ss; + ldap_objectclass_free(oc); + return NULL; + } + if ( add_extension(&oc->oc_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_objectclass_free(oc); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_objectclass_free(oc); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_objectclass_free(oc); + return NULL; + } + } +} + +void +ldap_contentrule_free(LDAPContentRule * cr) +{ + if (!cr) return; + LDAP_FREE(cr->cr_oid); + if (cr->cr_names) LDAP_VFREE(cr->cr_names); + if (cr->cr_desc) LDAP_FREE(cr->cr_desc); + if (cr->cr_oc_oids_aux) LDAP_VFREE(cr->cr_oc_oids_aux); + if (cr->cr_at_oids_must) LDAP_VFREE(cr->cr_at_oids_must); + if (cr->cr_at_oids_may) LDAP_VFREE(cr->cr_at_oids_may); + if (cr->cr_at_oids_not) LDAP_VFREE(cr->cr_at_oids_not); + free_extensions(cr->cr_extensions); + LDAP_FREE(cr); +} + +LDAPContentRule * +ldap_str2contentrule( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + int seen_obsolete = 0; + int seen_aux = 0; + int seen_must = 0; + int seen_may = 0; + int seen_not = 0; + LDAPContentRule * cr; + char ** ext_vals; + const char * savepos; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + cr = LDAP_CALLOC(1,sizeof(LDAPContentRule)); + + if ( !cr ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + *code = LDAP_SCHERR_NOLEFTPAREN; + LDAP_FREE(sval); + ldap_contentrule_free(cr); + return NULL; + } + + /* + * Definitions MUST begin with an OID in the numericoid format. + */ + parse_whsp(&ss); + savepos = ss; + cr->cr_oid = ldap_int_parse_numericoid(&ss,code,0); + if ( !cr->cr_oid ) { + if ( (flags & LDAP_SCHEMA_ALLOW_ALL) && (ss == savepos) ) { + /* Backtracking */ + ss = savepos; + kind = get_token(&ss,&sval); + if ( kind == TK_BAREWORD ) { + if ( !strcasecmp(sval, "NAME") || + !strcasecmp(sval, "DESC") || + !strcasecmp(sval, "OBSOLETE") || + !strcasecmp(sval, "AUX") || + !strcasecmp(sval, "MUST") || + !strcasecmp(sval, "MAY") || + !strcasecmp(sval, "NOT") || + !strncasecmp(sval, "X-", 2) ) { + /* Missing OID, backtrack */ + ss = savepos; + } else if ( flags & + LDAP_SCHEMA_ALLOW_OID_MACRO ) { + /* Non-numerical OID, ignore */ + int len = ss-savepos; + cr->cr_oid = LDAP_MALLOC(len+1); + strncpy(cr->cr_oid, savepos, len); + cr->cr_oid[len] = 0; + } + } + LDAP_FREE(sval); + } else { + *errp = ss; + ldap_contentrule_free(cr); + return NULL; + } + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal an accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_contentrule_free(cr); + return NULL; + case TK_RIGHTPAREN: + return cr; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_contentrule_free(cr); + return(NULL); + } + seen_name = 1; + cr->cr_names = parse_qdescrs(&ss,code); + if ( !cr->cr_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_contentrule_free(cr); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_contentrule_free(cr); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_contentrule_free(cr); + return NULL; + } + cr->cr_desc = sval; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OBSOLETE") ) { + LDAP_FREE(sval); + if ( seen_obsolete ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_contentrule_free(cr); + return(NULL); + } + seen_obsolete = 1; + cr->cr_obsolete = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"AUX") ) { + LDAP_FREE(sval); + if ( seen_aux ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_contentrule_free(cr); + return(NULL); + } + seen_aux = 1; + cr->cr_oc_oids_aux = parse_oids(&ss,code,0); + if ( !cr->cr_oc_oids_aux ) { + *errp = ss; + ldap_contentrule_free(cr); + return NULL; + } + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"MUST") ) { + LDAP_FREE(sval); + if ( seen_must ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_contentrule_free(cr); + return(NULL); + } + seen_must = 1; + cr->cr_at_oids_must = parse_oids(&ss,code,0); + if ( !cr->cr_at_oids_must && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_contentrule_free(cr); + return NULL; + } + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"MAY") ) { + LDAP_FREE(sval); + if ( seen_may ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_contentrule_free(cr); + return(NULL); + } + seen_may = 1; + cr->cr_at_oids_may = parse_oids(&ss,code,0); + if ( !cr->cr_at_oids_may && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_contentrule_free(cr); + return NULL; + } + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"NOT") ) { + LDAP_FREE(sval); + if ( seen_not ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_contentrule_free(cr); + return(NULL); + } + seen_not = 1; + cr->cr_at_oids_not = parse_oids(&ss,code,0); + if ( !cr->cr_at_oids_not && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_contentrule_free(cr); + return NULL; + } + parse_whsp(&ss); + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + if ( !ext_vals ) { + *errp = ss; + ldap_contentrule_free(cr); + return NULL; + } + if ( add_extension(&cr->cr_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_contentrule_free(cr); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_contentrule_free(cr); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_contentrule_free(cr); + return NULL; + } + } +} + +void +ldap_structurerule_free(LDAPStructureRule * sr) +{ + if (!sr) return; + if (sr->sr_names) LDAP_VFREE(sr->sr_names); + if (sr->sr_desc) LDAP_FREE(sr->sr_desc); + if (sr->sr_nameform) LDAP_FREE(sr->sr_nameform); + if (sr->sr_sup_ruleids) LDAP_FREE(sr->sr_sup_ruleids); + free_extensions(sr->sr_extensions); + LDAP_FREE(sr); +} + +LDAPStructureRule * +ldap_str2structurerule( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + int ret; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + int seen_obsolete = 0; + int seen_nameform = 0; + LDAPStructureRule * sr; + char ** ext_vals; + const char * savepos; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + sr = LDAP_CALLOC(1,sizeof(LDAPStructureRule)); + + if ( !sr ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + *code = LDAP_SCHERR_NOLEFTPAREN; + LDAP_FREE(sval); + ldap_structurerule_free(sr); + return NULL; + } + + /* + * Definitions MUST begin with a ruleid. + */ + parse_whsp(&ss); + savepos = ss; + ret = ldap_int_parse_ruleid(&ss,code,0,&sr->sr_ruleid); + if ( ret ) { + *errp = ss; + ldap_structurerule_free(sr); + return NULL; + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal an accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_structurerule_free(sr); + return NULL; + case TK_RIGHTPAREN: + if( !seen_nameform ) { + *code = LDAP_SCHERR_MISSING; + ldap_structurerule_free(sr); + return NULL; + } + return sr; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_structurerule_free(sr); + return(NULL); + } + seen_name = 1; + sr->sr_names = parse_qdescrs(&ss,code); + if ( !sr->sr_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_structurerule_free(sr); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_structurerule_free(sr); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_structurerule_free(sr); + return NULL; + } + sr->sr_desc = sval; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OBSOLETE") ) { + LDAP_FREE(sval); + if ( seen_obsolete ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_structurerule_free(sr); + return(NULL); + } + seen_obsolete = 1; + sr->sr_obsolete = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"FORM") ) { + LDAP_FREE(sval); + if ( seen_nameform ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_structurerule_free(sr); + return(NULL); + } + seen_nameform = 1; + sr->sr_nameform = parse_woid(&ss,code); + if ( !sr->sr_nameform ) { + *errp = ss; + ldap_structurerule_free(sr); + return NULL; + } + parse_whsp(&ss); + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + if ( !ext_vals ) { + *errp = ss; + ldap_structurerule_free(sr); + return NULL; + } + if ( add_extension(&sr->sr_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_structurerule_free(sr); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_structurerule_free(sr); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_structurerule_free(sr); + return NULL; + } + } +} + +void +ldap_nameform_free(LDAPNameForm * nf) +{ + if (!nf) return; + LDAP_FREE(nf->nf_oid); + if (nf->nf_names) LDAP_VFREE(nf->nf_names); + if (nf->nf_desc) LDAP_FREE(nf->nf_desc); + if (nf->nf_objectclass) LDAP_FREE(nf->nf_objectclass); + if (nf->nf_at_oids_must) LDAP_VFREE(nf->nf_at_oids_must); + if (nf->nf_at_oids_may) LDAP_VFREE(nf->nf_at_oids_may); + free_extensions(nf->nf_extensions); + LDAP_FREE(nf); +} + +LDAPNameForm * +ldap_str2nameform( LDAP_CONST char * s, + int * code, + LDAP_CONST char ** errp, + LDAP_CONST unsigned flags ) +{ + tk_t kind; + const char * ss = s; + char * sval; + int seen_name = 0; + int seen_desc = 0; + int seen_obsolete = 0; + int seen_class = 0; + int seen_must = 0; + int seen_may = 0; + LDAPNameForm * nf; + char ** ext_vals; + const char * savepos; + + if ( !s ) { + *code = LDAP_SCHERR_EMPTY; + *errp = ""; + return NULL; + } + + *errp = s; + nf = LDAP_CALLOC(1,sizeof(LDAPNameForm)); + + if ( !nf ) { + *code = LDAP_SCHERR_OUTOFMEM; + return NULL; + } + + kind = get_token(&ss,&sval); + if ( kind != TK_LEFTPAREN ) { + *code = LDAP_SCHERR_NOLEFTPAREN; + LDAP_FREE(sval); + ldap_nameform_free(nf); + return NULL; + } + + /* + * Definitions MUST begin with an OID in the numericoid format. + * However, this routine is used by clients to parse the response + * from servers and very well known servers will provide an OID + * in the wrong format or even no OID at all. We do our best to + * extract info from those servers. + */ + parse_whsp(&ss); + savepos = ss; + nf->nf_oid = ldap_int_parse_numericoid(&ss,code,0); + if ( !nf->nf_oid ) { + *errp = ss; + ldap_nameform_free(nf); + return NULL; + } + parse_whsp(&ss); + + /* + * Beyond this point we will be liberal an accept the items + * in any order. + */ + while (1) { + kind = get_token(&ss,&sval); + switch (kind) { + case TK_EOS: + *code = LDAP_SCHERR_NORIGHTPAREN; + *errp = EndOfInput; + ldap_nameform_free(nf); + return NULL; + case TK_RIGHTPAREN: + if( !seen_class || !seen_must ) { + *code = LDAP_SCHERR_MISSING; + ldap_nameform_free(nf); + return NULL; + } + return nf; + case TK_BAREWORD: + if ( !strcasecmp(sval,"NAME") ) { + LDAP_FREE(sval); + if ( seen_name ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_nameform_free(nf); + return(NULL); + } + seen_name = 1; + nf->nf_names = parse_qdescrs(&ss,code); + if ( !nf->nf_names ) { + if ( *code != LDAP_SCHERR_OUTOFMEM ) + *code = LDAP_SCHERR_BADNAME; + *errp = ss; + ldap_nameform_free(nf); + return NULL; + } + } else if ( !strcasecmp(sval,"DESC") ) { + LDAP_FREE(sval); + if ( seen_desc ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_nameform_free(nf); + return(NULL); + } + seen_desc = 1; + parse_whsp(&ss); + kind = get_token(&ss,&sval); + if ( kind != TK_QDSTRING ) { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_nameform_free(nf); + return NULL; + } + nf->nf_desc = sval; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OBSOLETE") ) { + LDAP_FREE(sval); + if ( seen_obsolete ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_nameform_free(nf); + return(NULL); + } + seen_obsolete = 1; + nf->nf_obsolete = LDAP_SCHEMA_YES; + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"OC") ) { + LDAP_FREE(sval); + if ( seen_class ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_nameform_free(nf); + return(NULL); + } + seen_class = 1; + nf->nf_objectclass = parse_woid(&ss,code); + if ( !nf->nf_objectclass ) { + *errp = ss; + ldap_nameform_free(nf); + return NULL; + } + } else if ( !strcasecmp(sval,"MUST") ) { + LDAP_FREE(sval); + if ( seen_must ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_nameform_free(nf); + return(NULL); + } + seen_must = 1; + nf->nf_at_oids_must = parse_oids(&ss,code,0); + if ( !nf->nf_at_oids_must && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_nameform_free(nf); + return NULL; + } + parse_whsp(&ss); + } else if ( !strcasecmp(sval,"MAY") ) { + LDAP_FREE(sval); + if ( seen_may ) { + *code = LDAP_SCHERR_DUPOPT; + *errp = ss; + ldap_nameform_free(nf); + return(NULL); + } + seen_may = 1; + nf->nf_at_oids_may = parse_oids(&ss,code,0); + if ( !nf->nf_at_oids_may && *code != LDAP_SUCCESS ) { + *errp = ss; + ldap_nameform_free(nf); + return NULL; + } + parse_whsp(&ss); + } else if ( sval[0] == 'X' && sval[1] == '-' ) { + /* Should be parse_qdstrings */ + ext_vals = parse_qdescrs(&ss, code); + if ( !ext_vals ) { + *errp = ss; + ldap_nameform_free(nf); + return NULL; + } + if ( add_extension(&nf->nf_extensions, + sval, ext_vals) ) { + *code = LDAP_SCHERR_OUTOFMEM; + *errp = ss; + LDAP_FREE(sval); + ldap_nameform_free(nf); + return NULL; + } + } else { + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_nameform_free(nf); + return NULL; + } + break; + default: + *code = LDAP_SCHERR_UNEXPTOKEN; + *errp = ss; + LDAP_FREE(sval); + ldap_nameform_free(nf); + return NULL; + } + } +} + +static char *const err2text[] = { + N_("Success"), + N_("Out of memory"), + N_("Unexpected token"), + N_("Missing opening parenthesis"), + N_("Missing closing parenthesis"), + N_("Expecting digit"), + N_("Expecting a name"), + N_("Bad description"), + N_("Bad superiors"), + N_("Duplicate option"), + N_("Unexpected end of data"), + N_("Missing required field"), + N_("Out of order field") +}; + +char * +ldap_scherr2str(int code) +{ + if ( code < 0 || code >= (int)(sizeof(err2text)/sizeof(char *)) ) { + return _("Unknown error"); + } else { + return _(err2text[code]); + } +} |