#include <limits.h>
#include <ldap_pvt.h>
+#include "lutil.h"
#define SASLREGEX_REPLACE 10
#define LDAP_X_SCOPE_CHILDREN ((ber_int_t) 0x0030)
#define LDAP_X_SCOPE_SUBTREE ((ber_int_t) 0x0040)
#define LDAP_X_SCOPE_ONELEVEL ((ber_int_t) 0x0050)
+#define LDAP_X_SCOPE_GROUP ((ber_int_t) 0x0060)
+#define LDAP_X_SCOPE_USERS ((ber_int_t) 0x0070)
/*
* IDs in DNauthzid form can now have a type specifier, that
static int nSaslRegexp = 0;
static SaslRegexp_t *SaslRegexp = NULL;
-#ifdef SLAP_SASL_REWRITE
+#ifdef SLAP_AUTH_REWRITE
#include "rewrite.h"
struct rewrite_info *sasl_rwinfo = NULL;
#define AUTHID_CONTEXT "authid"
-#endif /* SLAP_SASL_REWRITE */
+#endif /* SLAP_AUTH_REWRITE */
/* What SASL proxy authorization policies are allowed? */
#define SASL_AUTHZ_NONE 0x00
static int authz_policy = SASL_AUTHZ_NONE;
+static
+int slap_sasl_match( Operation *opx, struct berval *rule,
+ struct berval *assertDN, struct berval *authc );
+
int slap_sasl_setpolicy( const char *arg )
{
int rc = LDAP_SUCCESS;
#endif
rc = LDAP_PROTOCOL_ERROR;
+ /*
+ * dn[.<dnstyle>]:<dnpattern>
+ * <dnstyle> ::= {exact|regex|children|subtree|onelevel}
+ *
+ * <dnstyle> defaults to "exact"
+ * if <dnstyle> is not "regex", <dnpattern> must pass DN normalization
+ */
if ( !strncasecmp( uri->bv_val, "dn", STRLENOF( "dn" ) ) ) {
bv.bv_val = uri->bv_val + STRLENOF( "dn" );
bv.bv_val += STRLENOF( "regex:" );
*scope = LDAP_X_SCOPE_REGEX;
- } else if ( !strncasecmp( bv.bv_val, "children:", STRLENOF( "chldren:" ) ) ) {
+ } else if ( !strncasecmp( bv.bv_val, "children:", STRLENOF( "children:" ) ) ) {
bv.bv_val += STRLENOF( "children:" );
*scope = LDAP_X_SCOPE_CHILDREN;
} else {
return LDAP_PROTOCOL_ERROR;
}
- }
- if ( bv.bv_val[ 0 ] != ':' ) {
- return LDAP_PROTOCOL_ERROR;
+ } else {
+ if ( bv.bv_val[ 0 ] != ':' ) {
+ return LDAP_PROTOCOL_ERROR;
+ }
+ *scope = LDAP_X_SCOPE_EXACT;
+ bv.bv_val++;
}
- bv.bv_val++;
bv.bv_val += strspn( bv.bv_val, " " );
/* jump here in case no type specification was present
- * and uir was not an URI... HEADS-UP: assuming EXACT */
+ * and uri was not an URI... HEADS-UP: assuming EXACT */
is_dn: bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
+ /* a single '*' means any DN without using regexes */
+ if ( ber_bvccmp( &bv, '*' ) ) {
+ *scope = LDAP_X_SCOPE_USERS;
+ }
+
switch ( *scope ) {
case LDAP_X_SCOPE_EXACT:
case LDAP_X_SCOPE_CHILDREN:
case LDAP_X_SCOPE_REGEX:
ber_dupbv_x( nbase, &bv, op->o_tmpmemctx );
+
+ case LDAP_X_SCOPE_USERS:
rc = LDAP_SUCCESS;
break;
return rc;
+ /*
+ * u:<uid>
+ */
} else if ( ( uri->bv_val[ 0 ] == 'u' || uri->bv_val[ 0 ] == 'U' )
&& ( uri->bv_val[ 1 ] == ':'
|| uri->bv_val[ 1 ] == '/'
}
return rc;
- }
+
+ /*
+ * group[/<groupoc>[/<groupat>]]:<groupdn>
+ *
+ * groupoc defaults to "groupOfNames"
+ * groupat defaults to "member"
+ *
+ * <groupdn> must pass DN normalization
+ */
+ } else if ( strncasecmp( uri->bv_val, "group", STRLENOF( "group" ) ) == 0 )
+ {
+ struct berval group_dn = BER_BVNULL,
+ group_oc = BER_BVNULL,
+ member_at = BER_BVNULL;
+ char *tmp;
+
+ bv.bv_val = uri->bv_val + STRLENOF( "group" );
+ group_dn.bv_val = strchr( bv.bv_val, ':' );
+ if ( group_dn.bv_val == NULL ) {
+ /* last chance: assume it's a(n exact) DN ... */
+ bv.bv_val = uri->bv_val;
+ *scope = LDAP_X_SCOPE_EXACT;
+ goto is_dn;
+ }
+ if ( bv.bv_val[ 0 ] == '/' ) {
+ group_oc.bv_val = &bv.bv_val[ 1 ];
+
+ member_at.bv_val = strchr( group_oc.bv_val, '/' );
+ if ( member_at.bv_val ) {
+ group_oc.bv_len = member_at.bv_val - group_oc.bv_val;
+ member_at.bv_val++;
+ member_at.bv_len = group_dn.bv_val - member_at.bv_val;
+
+ } else {
+ group_oc.bv_len = group_dn.bv_val - group_oc.bv_val;
+ BER_BVSTR( &member_at, "member" );
+ }
+
+ } else {
+ BER_BVSTR( &group_oc, "groupOfNames" );
+ }
+ group_dn.bv_val++;
+ group_dn.bv_len = uri->bv_len - ( group_dn.bv_val - uri->bv_val );
+
+ rc = dnNormalize( 0, NULL, NULL, &group_dn, nbase, op->o_tmpmemctx );
+ if ( rc != LDAP_SUCCESS ) {
+ *scope = -1;
+ return rc;
+ }
+ *scope = LDAP_X_SCOPE_GROUP;
+
+ /* FIXME: caller needs to add value of member attribute
+ * and close brackets twice */
+ fstr->bv_len = STRLENOF( "(&(objectClass=)(=" /* )) */ )
+ + group_oc.bv_len + member_at.bv_len;
+ fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
+
+ tmp = lutil_strncopy( fstr->bv_val, "(&(objectClass=" /* )) */ ,
+ STRLENOF( "(&(objectClass=" /* )) */ ) );
+ tmp = lutil_strncopy( tmp, group_oc.bv_val, group_oc.bv_len );
+ tmp = lutil_strncopy( tmp, /* ( */ ")(" /* ) */ ,
+ STRLENOF( /* ( */ ")(" /* ) */ ) );
+ tmp = lutil_strncopy( tmp, member_at.bv_val, member_at.bv_len );
+ tmp = lutil_strncopy( tmp, "=", STRLENOF( "=" ) );
+
+ return rc;
+ }
+
+ /*
+ * ldap:///<base>??<scope>?<filter>
+ * <scope> ::= {base|one|subtree}
+ *
+ * <scope> defaults to "base"
+ * <base> must pass DN normalization
+ * <filter> must pass str2filter()
+ */
rc = ldap_url_parse( uri->bv_val, &ludp );
if ( rc == LDAP_URL_ERR_BADSCHEME ) {
- /* last chance: assume it's a(n exact) DN ... */
+ /*
+ * last chance: assume it's a(n exact) DN ...
+ *
+ * NOTE: must pass DN normalization
+ */
bv.bv_val = uri->bv_val;
*scope = LDAP_X_SCOPE_EXACT;
goto is_dn;
return( LDAP_SUCCESS );
}
-#ifdef SLAP_SASL_REWRITE
+#ifdef SLAP_AUTH_REWRITE
int slap_sasl_rewrite_config(
const char *fname,
int lineno,
int slap_sasl_rewrite_destroy( void )
{
if ( sasl_rwinfo ) {
- rewrite_info_delete( sasl_rwinfo );
+ rewrite_info_delete( &sasl_rwinfo );
sasl_rwinfo = NULL;
}
const char *context )
{
int rc;
- char *newreplace, *p;
- char *argvRule[] = { "rewriteRule", NULL, NULL, "@", NULL };
+ char *argvRule[] = { "rewriteRule", NULL, NULL, ":@", NULL };
/* init at first call */
if ( sasl_rwinfo == NULL ) {
char *argvEngine[] = { "rewriteEngine", "on", NULL };
char *argvContext[] = { "rewriteContext", NULL, NULL };
- char *argvFirstRule[] = { "rewriteRule", ".*",
- "%{>" AUTHID_CONTEXT "(%0)}", ":", NULL };
/* initialize rewrite engine */
sasl_rwinfo = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
}
}
- newreplace = ch_strdup( replace );
-
- for (p = strchr( newreplace, '$' ); p; p = strchr( p + 1, '$' ) ) {
- if ( isdigit( p[1] ) ) {
- p[0] = '%';
- } else {
- p++;
- }
- }
-
argvRule[1] = (char *)match;
- argvRule[2] = newreplace;
+ argvRule[2] = (char *)replace;
rc = rewrite_parse( sasl_rwinfo, fname, lineno, 4, argvRule );
- ch_free( newreplace );
return rc;
}
-#endif /* SLAP_SASL_REWRITE */
+#endif /* SLAP_AUTH_REWRITE */
int slap_sasl_regexp_config( const char *match, const char *replace )
{
-#ifdef SLAP_SASL_REWRITE
+#ifdef SLAP_AUTH_REWRITE
return slap_sasl_regexp_rewrite_config( "sasl-regexp", 0,
match, replace, AUTHID_CONTEXT );
-#else /* ! SLAP_SASL_REWRITE */
+#else /* ! SLAP_AUTH_REWRITE */
int rc;
SaslRegexp_t *reg;
nSaslRegexp++;
return( LDAP_SUCCESS );
-#endif /* ! SLAP_SASL_REWRITE */
+#endif /* ! SLAP_AUTH_REWRITE */
}
/* Perform replacement on regexp matches */
LDAP URI to find the matching LDAP entry, using the pattern matching
strings given in the saslregexp config file directive(s) */
-static int slap_sasl_regexp( struct berval *in, struct berval *out,
+static int slap_authz_regexp( struct berval *in, struct berval *out,
int flags, void *ctx )
{
-#ifdef SLAP_SASL_REWRITE
+#ifdef SLAP_AUTH_REWRITE
const char *context = AUTHID_CONTEXT;
if ( sasl_rwinfo == NULL || BER_BVISNULL( in ) ) {
return 0;
}
-#else /* ! SLAP_SASL_REWRITE */
+#else /* ! SLAP_AUTH_REWRITE */
char *saslname = in->bv_val;
SaslRegexp_t *reg;
regmatch_t sr_strings[SASLREGEX_REPLACE]; /* strings matching $1,$2 ... */
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
- "slap_sasl_regexp: converting SASL name %s\n", saslname, 0, 0 );
+ "slap_authz_regexp: converting SASL name %s\n", saslname, 0, 0 );
#else
- Debug( LDAP_DEBUG_TRACE, "slap_sasl_regexp: converting SASL name %s\n",
+ Debug( LDAP_DEBUG_TRACE, "slap_authz_regexp: converting SASL name %s\n",
saslname, 0, 0 );
#endif
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
- "slap_sasl_regexp: converted SASL name to %s\n",
+ "slap_authz_regexp: converted SASL name to %s\n",
BER_BVISEMPTY( out ) ? "" : out->bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
- "slap_sasl_regexp: converted SASL name to %s\n",
+ "slap_authz_regexp: converted SASL name to %s\n",
BER_BVISEMPTY( out ) ? "" : out->bv_val, 0, 0 );
#endif
return( 1 );
-#endif /* ! SLAP_SASL_REWRITE */
+#endif /* ! SLAP_AUTH_REWRITE */
}
/* This callback actually does some work...*/
{
smatch_info *sm = o->o_callback->sc_private;
- if (rs->sr_type != REP_SEARCH) return 0;
+ if ( rs->sr_type != REP_SEARCH ) {
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ sm->match = -1;
+ }
+ return 0;
+ }
+
+ if ( sm->match == 1 ) {
+ sm->match = -1;
+ return 0;
+ }
if (dn_match(sm->dn, &rs->sr_entry->e_nname)) {
sm->match = 1;
- return -1; /* short-circuit the search */
+
+ } else {
+ sm->match = -1;
}
- return 1;
+ return 0;
+}
+
+int
+slap_sasl_matches( Operation *op, BerVarray rules,
+ struct berval *assertDN, struct berval *authc )
+{
+ int rc = LDAP_INAPPROPRIATE_AUTH;
+
+ if ( rules != NULL ) {
+ int i;
+
+ for( i = 0; !BER_BVISNULL( &rules[i] ); i++ ) {
+ rc = slap_sasl_match( op, &rules[i], assertDN, authc );
+ if ( rc == LDAP_SUCCESS ) break;
+ }
+ }
+
+ return rc;
}
/*
Operation op = {0};
SlapReply rs = {REP_RESULT};
+ sm.dn = assertDN;
+ sm.match = 0;
+ cb.sc_private = &sm;
+
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
"slap_sasl_match: comparing DN %s to rule %s\n",
&op.ors_filterstr );
if( rc != LDAP_SUCCESS ) goto CONCLUDED;
- /* Massive shortcut: search scope == base */
switch ( op.oq_search.rs_scope ) {
- case LDAP_SCOPE_BASE:
case LDAP_X_SCOPE_EXACT:
exact_match:
if ( dn_match( &op.o_req_ndn, assertDN ) ) {
}
goto CONCLUDED;
+ case LDAP_X_SCOPE_GROUP: {
+ char *tmp;
+
+ /* Now filterstr looks like "(&(objectClass=<group_oc>)(<member_at>="
+ * we need to append the <assertDN> so that the <group_dn> is searched
+ * with scope "base", and the filter ensures that <assertDN> is
+ * member of the group */
+ tmp = ch_realloc( op.ors_filterstr.bv_val, op.ors_filterstr.bv_len +
+ assertDN->bv_len + STRLENOF( /*"(("*/ "))" ) + 1 );
+ if ( tmp == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto CONCLUDED;
+ }
+ op.ors_filterstr.bv_val = tmp;
+
+ tmp = lutil_strcopy( &tmp[op.ors_filterstr.bv_len], assertDN->bv_val );
+ tmp = lutil_strcopy( tmp, /*"(("*/ "))" );
+
+ /* pass opx because str2filter_x may (and does) use o_tmpmfuncs */
+ op.ors_filter = str2filter_x( opx, op.ors_filterstr.bv_val );
+ if ( op.ors_filter == NULL ) {
+ rc = LDAP_PROTOCOL_ERROR;
+ goto CONCLUDED;
+ }
+ op.ors_scope = LDAP_SCOPE_BASE;
+
+ /* hijack match DN: use that of the group instead of the assertDN;
+ * assertDN is now in the filter */
+ sm.dn = &op.o_req_ndn;
+
+ /* do the search */
+ break;
+ }
+
+ case LDAP_X_SCOPE_USERS:
+ if ( !BER_BVISEMPTY( assertDN ) ) {
+ rc = LDAP_SUCCESS;
+ } else {
+ rc = LDAP_INAPPROPRIATE_AUTH;
+ }
+ goto CONCLUDED;
+
default:
break;
}
goto CONCLUDED;
}
- sm.dn = assertDN;
- sm.match = 0;
- cb.sc_private = &sm;
-
op.o_tag = LDAP_REQ_SEARCH;
op.o_protocol = LDAP_VERSION3;
op.o_ndn = *authc;
#endif
op.o_conn = opx->o_conn;
op.o_connid = opx->o_connid;
- op.o_req_dn = op.o_req_ndn;
+ /* use req_ndn as req_dn instead of non-pretty base of uri */
+ if( !BER_BVISNULL( &op.o_req_dn ) ) ch_free( op.o_req_dn.bv_val );
+ ber_dupbv_x( &op.o_req_dn, &op.o_req_ndn, op.o_tmpmemctx );
op.oq_search.rs_slimit = 1;
- op.oq_search.rs_tlimit = -1;
+ op.oq_search.rs_tlimit = SLAP_NO_LIMIT;
+ op.o_sync_slog_size = -1;
op.o_bd->be_search( &op, &rs );
- if (sm.match) {
+ if (sm.match == 1) {
rc = LDAP_SUCCESS;
} else {
rc = LDAP_INAPPROPRIATE_AUTH;
}
CONCLUDED:
- if( op.o_req_dn.bv_len ) ch_free( op.o_req_dn.bv_val );
- if( op.o_req_ndn.bv_len ) slap_sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
+ if( !BER_BVISNULL( &op.o_req_dn ) ) slap_sl_free( op.o_req_dn.bv_val, opx->o_tmpmemctx );
+ if( !BER_BVISNULL( &op.o_req_ndn ) ) slap_sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
if( op.oq_search.rs_filter ) filter_free_x( opx, op.oq_search.rs_filter );
- if( op.ors_filterstr.bv_len ) ch_free( op.ors_filterstr.bv_val );
+ if( !BER_BVISNULL( &op.ors_filterstr ) ) ch_free( op.ors_filterstr.bv_val );
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
struct berval *authc )
{
int i, rc;
- BerVarray vals=NULL;
+ BerVarray vals = NULL;
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
assertDN->bv_val, ad->ad_cname.bv_val, searchDN->bv_val);
#endif
- rc = backend_attribute( op, NULL,
- searchDN, ad, &vals );
+ rc = backend_attribute( op, NULL, searchDN, ad, &vals );
if( rc != LDAP_SUCCESS ) goto COMPLETE;
- /* Check if the *assertDN matches any **vals */
- if( vals != NULL ) {
- for( i=0; !BER_BVISNULL( &vals[i] ); i++ ) {
- rc = slap_sasl_match( op, &vals[i], assertDN, authc );
- if ( rc == LDAP_SUCCESS ) goto COMPLETE;
- }
- }
- rc = LDAP_INAPPROPRIATE_AUTH;
+ /* Check if the *assertDN matches any *vals */
+ rc = slap_sasl_matches( op, vals, assertDN, authc );
COMPLETE:
if( vals ) ber_bvarray_free_x( vals, op->o_tmpmemctx );
cb.sc_private = sasldn;
/* Convert the SASL name into a minimal URI */
- if( !slap_sasl_regexp( saslname, ®out, flags, opx->o_tmpmemctx ) ) {
+ if( !slap_authz_regexp( saslname, ®out, flags, opx->o_tmpmemctx ) ) {
goto FINISHED;
}
/* Must do an internal search */
op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
- /* Massive shortcut: search scope == base */
switch ( op.oq_search.rs_scope ) {
- case LDAP_SCOPE_BASE:
case LDAP_X_SCOPE_EXACT:
*sasldn = op.o_req_ndn;
BER_BVZERO( &op.o_req_ndn );
case LDAP_X_SCOPE_SUBTREE:
case LDAP_X_SCOPE_CHILDREN:
case LDAP_X_SCOPE_ONELEVEL:
+ case LDAP_X_SCOPE_GROUP:
+ case LDAP_X_SCOPE_USERS:
/* correctly parsed, but illegal */
goto FINISHED;
+ case LDAP_SCOPE_BASE:
case LDAP_SCOPE_ONELEVEL:
case LDAP_SCOPE_SUBTREE:
#ifdef LDAP_SCOPE_SUBORDINATE
#endif
op.oq_search.rs_deref = LDAP_DEREF_NEVER;
op.oq_search.rs_slimit = 1;
- op.oq_search.rs_tlimit = -1;
+ op.oq_search.rs_tlimit = SLAP_NO_LIMIT;
op.oq_search.rs_attrsonly = 1;
/* use req_ndn as req_dn instead of non-pretty base of uri */
if( !BER_BVISNULL( &op.o_req_dn ) ) ch_free( op.o_req_dn.bv_val );
if( !BER_BVISEMPTY( sasldn ) ) {
opx->o_conn->c_authz_backend = op.o_bd;
}
- if( !BER_BVISNULL( &op.o_req_dn ) ) slap_sl_free( op.o_req_dn.bv_val, opx->o_tmpmemctx );
- if( !BER_BVISNULL( &op.o_req_ndn ) ) slap_sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
- if( op.oq_search.rs_filter ) filter_free_x( opx, op.oq_search.rs_filter );
- if( !BER_BVISNULL( &op.ors_filterstr ) ) ch_free( op.ors_filterstr.bv_val );
+ if( !BER_BVISNULL( &op.o_req_dn ) ) {
+ slap_sl_free( op.o_req_dn.bv_val, opx->o_tmpmemctx );
+ }
+ if( !BER_BVISNULL( &op.o_req_ndn ) ) {
+ slap_sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
+ }
+ if( op.oq_search.rs_filter ) {
+ filter_free_x( opx, op.oq_search.rs_filter );
+ }
+ if( !BER_BVISNULL( &op.ors_filterstr ) ) {
+ ch_free( op.ors_filterstr.bv_val );
+ }
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
projects / openldap / blobdiff