#include "slap.h"
#include "back-ldap.h"
+#include "config.h"
+
#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+#define SLAP_CHAINING_DEFAULT LDAP_CHAINING_PREFERRED
#define SLAP_CH_RESOLVE_SHIFT SLAP_CONTROL_SHIFT
#define SLAP_CH_RESOLVE_MASK (0x3 << SLAP_CH_RESOLVE_SHIFT)
#define SLAP_CH_RESOLVE_CHAINING_PREFERRED (LDAP_CHAINING_PREFERRED << SLAP_CH_RESOLVE_SHIFT)
#define SLAP_CH_RESOLVE_CHAINING_REQUIRED (LDAP_CHAINING_REQUIRED << SLAP_CH_RESOLVE_SHIFT)
#define SLAP_CH_RESOLVE_REFERRALS_PREFERRED (LDAP_REFERRALS_PREFERRED << SLAP_CH_RESOLVE_SHIFT)
#define SLAP_CH_RESOLVE_REFERRALS_REQUIRED (LDAP_REFERRALS_REQUIRED << SLAP_CH_RESOLVE_SHIFT)
-#define SLAP_CH_RESOLVE_DEFAULT SLAP_CH_RESOLVE_CHAINING_PREFERRED
+#define SLAP_CH_RESOLVE_DEFAULT (SLAP_CHAINING_DEFAULT << SLAP_CH_RESOLVE_SHIFT)
#define SLAP_CH_CONTINUATION_SHIFT (SLAP_CH_RESOLVE_SHIFT + 2)
#define SLAP_CH_CONTINUATION_MASK (0x3 << SLAP_CH_CONTINUATION_SHIFT)
#define SLAP_CH_CONTINUATION_CHAINING_PREFERRED (LDAP_CHAINING_PREFERRED << SLAP_CH_CONTINUATION_SHIFT)
#define SLAP_CH_CONTINUATION_CHAINING_REQUIRED (LDAP_CHAINING_REQUIRED << SLAP_CH_CONTINUATION_SHIFT)
#define SLAP_CH_CONTINUATION_REFERRALS_PREFERRED (LDAP_REFERRALS_PREFERRED << SLAP_CH_CONTINUATION_SHIFT)
#define SLAP_CH_CONTINUATION_REFERRALS_REQUIRED (LDAP_REFERRALS_REQUIRED << SLAP_CH_CONTINUATION_SHIFT)
-#define SLAP_CH_CONTINUATION_DEFAULT SLAP_CH_CONTINUATION_CHAINING_PREFERRED
+#define SLAP_CH_CONTINUATION_DEFAULT (SLAP_CHAINING_DEFAULT << SLAP_CH_CONTINUATION_SHIFT)
#define o_chaining o_ctrlflag[sc_chainingBehavior]
#define get_chaining(op) ((op)->o_chaining & SLAP_CONTROL_MASK)
#define get_chainingBehavior(op) ((op)->o_chaining & (SLAP_CH_RESOLVE_MASK|SLAP_CH_CONTINUATION_MASK))
#define get_resolveBehavior(op) ((op)->o_chaining & SLAP_CH_RESOLVE_MASK)
#define get_continuationBehavior(op) ((op)->o_chaining & SLAP_CH_CONTINUATION_MASK)
+
+static int sc_chainingBehavior;
#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
#define LDAP_CH_NONE ((void *)(0))
#define LDAP_CH_RES ((void *)(1))
#define LDAP_CH_ERR ((void *)(2))
-static int sc_chainingBehavior;
static BackendInfo *lback;
typedef struct ldap_chain_t {
unsigned lc_flags;
#define LDAP_CHAIN_F_NONE 0x00U
#define LDAP_CHAIN_F_CHAINING 0x01U
- LDAPControl lc_chaining_ctrl;
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ LDAPControl lc_chaining_ctrl;
+ char lc_chaining_ctrlflag;
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
} ldap_chain_t;
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+static int
+chaining_control_add(
+ ldap_chain_t *lc,
+ Operation *op,
+ LDAPControl ***oldctrlsp )
+{
+ LDAPControl **ctrls = NULL;
+ int c = 0;
+
+ *oldctrlsp = op->o_ctrls;
+
+ /* default chaining control not defined */
+ if ( !( lc->lc_flags & LDAP_CHAIN_F_CHAINING ) ) {
+ return 0;
+ }
+
+ /* already present */
+ if ( get_chaining( op ) > SLAP_CONTROL_IGNORED ) {
+ return 0;
+ }
+
+ /* FIXME: check other incompatibilities */
+
+ /* add to other controls */
+ if ( op->o_ctrls ) {
+ for ( c = 0; op->o_ctrls[ c ]; c++ )
+ /* count them */ ;
+ }
+
+ ctrls = ch_calloc( sizeof( LDAPControl *), c + 2 );
+ ctrls[ 0 ] = &lc->lc_chaining_ctrl;
+ if ( op->o_ctrls ) {
+ for ( c = 0; op->o_ctrls[ c ]; c++ ) {
+ ctrls[ c + 1 ] = op->o_ctrls[ c ];
+ }
+ }
+ ctrls[ c + 1 ] = NULL;
+
+ op->o_ctrls = ctrls;
+
+ op->o_chaining = lc->lc_chaining_ctrlflag;
+
+ return 0;
+}
+
+static int
+chaining_control_remove(
+ Operation *op,
+ LDAPControl ***oldctrlsp )
+{
+ LDAPControl **oldctrls = *oldctrlsp;
+
+ /* we assume that the first control is the chaining control
+ * added by the chain overlay, so it's the only one we explicitly
+ * free */
+ if ( op->o_ctrls != oldctrls ) {
+ assert( op->o_ctrls );
+ assert( op->o_ctrls[ 0 ] );
+
+ free( op->o_ctrls );
+
+ op->o_chaining = 0;
+ op->o_ctrls = oldctrls;
+ }
+
+ *oldctrlsp = NULL;
+
+ return 0;
+}
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
static int
ldap_chain_operational( Operation *op, SlapReply *rs )
{
/* NOTE: returned if ref is empty... */
int rc = LDAP_OTHER;
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ LDAPControl **ctrls = NULL;
+
+ (void)chaining_control_add( lc, op, &ctrls );
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
if ( lip->url != NULL ) {
op->o_bd->be_private = lip;
- return ( *op_f )( op, rs );
+ rc = ( *op_f )( op, rs );
+ goto done;
}
li = *lip;
}
}
+done:;
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ (void)chaining_control_remove( op, &ctrls );
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
return rc;
}
static int
ldap_chain_response( Operation *op, SlapReply *rs )
{
- slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
void *private = op->o_bd->be_private;
slap_callback *sc = op->o_callback,
sc2 = { 0 };
odn = op->o_req_dn,
ondn = op->o_req_ndn;
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ LDAPControl **ctrls = NULL;
+
+ (void)chaining_control_add( lc, op, &ctrls );
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
rs->sr_type = REP_SEARCH;
sc2.sc_response = ldap_chain_cb_search_response;
rc = rs->sr_err;
}
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ (void)chaining_control_remove( op, &ctrls );
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
op->o_req_dn = odn;
op->o_req_ndn = ondn;
rs->sr_type = REP_SEARCHREF;
return rc;
}
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+static int
+ldap_chain_parse_ctrl(
+ Operation *op,
+ SlapReply *rs,
+ LDAPControl *ctrl );
+
static int
str2chain( const char *s )
{
return -1;
}
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
+enum {
+ PC_CHAINING = 1
+};
+
+static ConfigDriver chain_cf_gen;
+static ConfigLDAPadd chain_ldadd;
+static ConfigCfAdd chain_cfadd;
+
+static ConfigTable chaincfg[] = {
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ { "chain-chaining", "args",
+ 2, 4, 0, ARG_MAGIC|ARG_BERVAL|PC_CHAINING, chain_cf_gen,
+ "( OLcfgOvAt:3.1 NAME 'olcChainingBehavior' "
+ "DESC 'Chaining behavior control parameters (draft-sermersheim-ldap-chaining)' "
+ "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+ { NULL, NULL, 0, 0, 0, ARG_IGNORED }
+};
+
+static ConfigOCs chainocs[] = {
+ { "( OLcfgOvOc:3.1 "
+ "NAME 'olcChainConfig' "
+ "DESC 'Chain configuration' "
+ "SUP olcOverlayConfig "
+ "MAY olcChainingBehavior )", Cft_Overlay, chaincfg, NULL, chain_cfadd },
+ { "( OLcfgOvOc:3.2 "
+ "NAME 'olcChainDatabase' "
+ "DESC 'Chain remote server configuration' "
+ "AUXILIARY )", Cft_Misc, chaincfg, chain_ldadd },
+ { NULL, 0, NULL }
+};
+
+static int
+chain_ldadd( CfEntryInfo *p, Entry *e, ConfigArgs *ca )
+{
+ if ( p->ce_type != Cft_Overlay || !p->ce_bi ||
+ p->ce_bi->bi_cf_ocs != chainocs )
+ return LDAP_CONSTRAINT_VIOLATION;
+
+ return LDAP_SUCCESS;
+}
+
+static int
+chain_cfadd( Operation *op, SlapReply *rs, Entry *p, ConfigArgs *ca )
+{
+ CfEntryInfo *pe = p->e_private;
+ slap_overinst *on = (slap_overinst *)pe->ce_bi;
+ ldap_chain_t *lc = (ldap_chain_t *)on->on_bi.bi_private;
+ void *priv = (void *)ca->be->be_private;
+ struct berval bv;
+
+ /* FIXME: should not hardcode "olcDatabase" here */
+ bv.bv_len = sprintf( ca->msg, "olcDatabase=%s", lback->bi_type );
+ bv.bv_val = ca->msg;
+
+ /* We can only create this entry if the database is table-driven */
+ if ( lback->bi_cf_ocs ) {
+ ca->be->be_private = (void *)lc->lc_li;
+ config_build_entry( op, rs, pe, ca, &bv, lback->bi_cf_ocs, &chainocs[1] );
+ ca->be->be_private = priv;
+ }
+
+ return 0;
+}
+
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+static slap_verbmasks chaining_mode[] = {
+ { BER_BVC("referralsRequired"), LDAP_REFERRALS_REQUIRED },
+ { BER_BVC("referralsPreferred"), LDAP_REFERRALS_PREFERRED },
+ { BER_BVC("chainingRequired"), LDAP_CHAINING_REQUIRED },
+ { BER_BVC("chainingPreferred"), LDAP_CHAINING_PREFERRED },
+ { BER_BVNULL, 0 }
+};
+#endif
+
+static int
+chain_cf_gen( ConfigArgs *c )
+{
+ slap_overinst *on = (slap_overinst *)c->bi;
+ ldap_chain_t *lc = (ldap_chain_t *)on->on_bi.bi_private;
+
+ int rc = 0;
+
+ if ( c->op == SLAP_CONFIG_EMIT ) {
+ switch( c->type ) {
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ case PC_CHAINING: {
+ struct berval resolve = BER_BVNULL,
+ continuation = BER_BVNULL;
+
+ if ( !( lc->lc_flags & LDAP_CHAIN_F_CHAINING ) ) {
+ return 1;
+ }
+
+ enum_to_verb( chaining_mode, ( ( lc->lc_chaining_ctrlflag & SLAP_CH_RESOLVE_MASK ) >> SLAP_CH_RESOLVE_SHIFT ), &resolve );
+ enum_to_verb( chaining_mode, ( ( lc->lc_chaining_ctrlflag & SLAP_CH_CONTINUATION_MASK ) >> SLAP_CH_CONTINUATION_SHIFT ), &continuation );
+
+ c->value_bv.bv_len = STRLENOF( "resolve=" ) + resolve.bv_len
+ + STRLENOF( " " )
+ + STRLENOF( "continuation=" ) + continuation.bv_len;
+ c->value_bv.bv_val = ch_malloc( c->value_bv.bv_len + 1 );
+ snprintf( c->value_bv.bv_val, c->value_bv.bv_len + 1,
+ "resolve=%s continuation=%s",
+ resolve.bv_val, continuation.bv_val );
+
+ if ( lc->lc_chaining_ctrl.ldctl_iscritical ) {
+ c->value_bv.bv_val = ch_realloc( c->value_bv.bv_val,
+ c->value_bv.bv_len + STRLENOF( " critical" ) + 1 );
+ AC_MEMCPY( &c->value_bv.bv_val[ c->value_bv.bv_len ],
+ " critical", STRLENOF( " critical" ) + 1 );
+ c->value_bv.bv_len += STRLENOF( " critical" );
+ }
+
+ break;
+ }
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
+ default:
+ assert( 0 );
+ rc = 1;
+ }
+ return rc;
+
+ } else if ( c->op == LDAP_MOD_DELETE ) {
+ return 1; /* FIXME */
+#if 0
+ switch( c->type ) {
+ case PC_ATTR:
+ case PC_TEMP:
+ }
+ return rc;
+#endif
+ }
+
+ switch( c->type ) {
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ case PC_CHAINING: {
+ char **argv = c->argv;
+ int argc = c->argc;
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *)&berbuf;
+ int resolve = -1,
+ continuation = -1,
+ iscritical = 0;
+ Operation op = { 0 };
+ SlapReply rs = { 0 };
+
+ lc->lc_chaining_ctrlflag = 0;
+
+ for ( argc--, argv++; argc > 0; argc--, argv++ ) {
+ if ( strncasecmp( argv[ 0 ], "resolve=", STRLENOF( "resolve=" ) ) == 0 ) {
+ resolve = str2chain( argv[ 0 ] + STRLENOF( "resolve=" ) );
+ if ( resolve == -1 ) {
+ fprintf( stderr, "%s line %d: "
+ "illegal <resolve> value %s "
+ "in \"chain-chaining>\"\n",
+ c->fname, c->lineno, argv[ 0 ] );
+ return 1;
+ }
+
+ } else if ( strncasecmp( argv[ 0 ], "continuation=", STRLENOF( "continuation=" ) ) == 0 ) {
+ continuation = str2chain( argv[ 0 ] + STRLENOF( "continuation=" ) );
+ if ( continuation == -1 ) {
+ fprintf( stderr, "%s line %d: "
+ "illegal <continuation> value %s "
+ "in \"chain-chaining\"\n",
+ c->fname, c->lineno, argv[ 0 ] );
+ return 1;
+ }
+
+ } else if ( strcasecmp( argv[ 0 ], "critical" ) == 0 ) {
+ iscritical = 1;
+
+ } else {
+ fprintf( stderr, "%s line %d: "
+ "unknown option in \"chain-chaining\"\n",
+ c->fname, c->lineno );
+ return 1;
+ }
+ }
+
+ if ( resolve != -1 || continuation != -1 ) {
+ int err;
+
+ if ( resolve == -1 ) {
+ /* default */
+ resolve = SLAP_CHAINING_DEFAULT;
+ }
+
+ ber_init2( ber, NULL, LBER_USE_DER );
+
+ err = ber_printf( ber, "{e" /* } */, resolve );
+ if ( err == -1 ) {
+ ber_free( ber, 1 );
+ fprintf( stderr, "%s line %d: "
+ "chaining behavior control encoding error!\n",
+ c->fname, c->lineno );
+ return 1;
+ }
+
+ if ( continuation > -1 ) {
+ err = ber_printf( ber, "e", continuation );
+ if ( err == -1 ) {
+ ber_free( ber, 1 );
+ fprintf( stderr, "%s line %d: "
+ "chaining behavior control encoding error!\n",
+ c->fname, c->lineno );
+ return 1;
+ }
+ }
+
+ err = ber_printf( ber, /* { */ "N}" );
+ if ( err == -1 ) {
+ ber_free( ber, 1 );
+ fprintf( stderr, "%s line %d: "
+ "chaining behavior control encoding error!\n",
+ c->fname, c->lineno );
+ return 1;
+ }
+
+ if ( ber_flatten2( ber, &lc->lc_chaining_ctrl.ldctl_value, 0 ) == -1 ) {
+ exit( EXIT_FAILURE );
+ }
+
+ } else {
+ BER_BVZERO( &lc->lc_chaining_ctrl.ldctl_value );
+ }
+
+ lc->lc_chaining_ctrl.ldctl_oid = LDAP_CONTROL_X_CHAINING_BEHAVIOR;
+ lc->lc_chaining_ctrl.ldctl_iscritical = iscritical;
+
+ if ( ldap_chain_parse_ctrl( &op, &rs, &lc->lc_chaining_ctrl ) != LDAP_SUCCESS )
+ {
+ fprintf( stderr, "%s line %d: "
+ "unable to parse chaining control%s%s\n",
+ c->fname, c->lineno,
+ rs.sr_text ? ": " : "",
+ rs.sr_text ? rs.sr_text : "" );
+ return 1;
+ }
+
+ lc->lc_chaining_ctrlflag = op.o_chaining;
+
+ lc->lc_flags |= LDAP_CHAIN_F_CHAINING;
+
+ rc = 0;
+
+ break;
+ }
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
+
+ default:
+ assert( 0 );
+ return 1;
+ }
+ return rc;
+}
static int
ldap_chain_db_config(
const char *fname,
int lineno,
int argc,
- char **argv
-)
+ char **argv )
{
slap_overinst *on = (slap_overinst *) be->bd_info;
ldap_chain_t *lc = (ldap_chain_t *)on->on_bi.bi_private;
- void *private = be->be_private;
char *argv0 = NULL;
int rc;
+ BackendDB db = *be;
- be->be_private = lc->lc_li;
if ( strncasecmp( argv[ 0 ], "chain-", STRLENOF( "chain-" ) ) == 0 ) {
argv0 = argv[ 0 ];
argv[ 0 ] = &argv[ 0 ][ STRLENOF( "chain-" ) ];
- if ( strcasecmp( argv0, "chaining" ) == 0 ) {
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
+ if ( strcasecmp( argv[ 0 ], "chaining" ) == 0 ) {
+ char **tmpargv = argv;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
int resolve = -1,
continuation = -1,
iscritical = 0;
+ Operation op = { 0 };
+ SlapReply rs = { 0 };
- for ( argc--, argv++; argc > 0; argc--, argv++ ) {
- if ( strncasecmp( argv[0], "resolve=", STRLENOF( "resolve=" ) ) == 0 ) {
- resolve = str2chain( argv[ 0 ] + STRLENOF( "resolve=" ) );
+ lc->lc_chaining_ctrlflag = 0;
+
+ for ( argc--, tmpargv++; argc > 0; argc--, tmpargv++ ) {
+ if ( strncasecmp( tmpargv[ 0 ], "resolve=", STRLENOF( "resolve=" ) ) == 0 ) {
+ resolve = str2chain( tmpargv[ 0 ] + STRLENOF( "resolve=" ) );
if ( resolve == -1 ) {
fprintf( stderr, "%s line %d: "
"illegal <resolve> value %s "
"in \"chain-chaining>\"\n",
- fname, lineno, argv[ 0 ] );
+ fname, lineno, tmpargv[ 0 ] );
return 1;
}
- } else if ( strncasecmp( argv[0], "continuation=", STRLENOF( "continuation=" ) ) == 0 ) {
- continuation = str2chain( argv[ 0 ] + STRLENOF( "continuation=" ) );
+ } else if ( strncasecmp( tmpargv[ 0 ], "continuation=", STRLENOF( "continuation=" ) ) == 0 ) {
+ continuation = str2chain( tmpargv[ 0 ] + STRLENOF( "continuation=" ) );
if ( continuation == -1 ) {
fprintf( stderr, "%s line %d: "
"illegal <continuation> value %s "
"in \"chain-chaining\"\n",
- fname, lineno, argv[ 0 ] );
+ fname, lineno, tmpargv[ 0 ] );
return 1;
}
- } else if ( strcasecmp( argv[ 0 ], "critical" ) == 0 ) {
+ } else if ( strcasecmp( tmpargv[ 0 ], "critical" ) == 0 ) {
iscritical = 1;
} else {
if ( resolve == -1 ) {
/* default */
- resolve = LDAP_CHAINING_PREFERRED;
+ resolve = SLAP_CHAINING_DEFAULT;
}
ber_init2( ber, NULL, LBER_USE_DER );
lc->lc_chaining_ctrl.ldctl_oid = LDAP_CONTROL_X_CHAINING_BEHAVIOR;
lc->lc_chaining_ctrl.ldctl_iscritical = iscritical;
+ if ( ldap_chain_parse_ctrl( &op, &rs, &lc->lc_chaining_ctrl ) != LDAP_SUCCESS )
+ {
+ fprintf( stderr, "%s line %d: "
+ "unable to parse chaining control%s%s\n",
+ fname, lineno,
+ rs.sr_text ? ": " : "",
+ rs.sr_text ? rs.sr_text : "" );
+ return 1;
+ }
+
+ lc->lc_chaining_ctrlflag = op.o_chaining;
+
lc->lc_flags |= LDAP_CHAIN_F_CHAINING;
- return 0;
+ rc = 0;
+ goto done;
}
+#endif /* LDAP_CONTROL_X_CHAINING_BEHAVIOR */
}
+ db.be_cf_ocs = lback->bi_cf_ocs;
+ db.be_private = lc->lc_li;
+ rc = lback->bi_db_config( &db, fname, lineno, argc, argv );
- rc = lback->bi_db_config( be, fname, lineno, argc, argv );
- be->be_private = private;
-
+done:;
if ( argv0 ) {
argv[ 0 ] = argv0;
}
static int
ldap_chain_db_init(
- BackendDB *be
-)
+ BackendDB *be )
{
slap_overinst *on = (slap_overinst *)be->bd_info;
ldap_chain_t *lc = NULL;
int
chain_init( void )
{
-#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
int rc;
+#ifdef LDAP_CONTROL_X_CHAINING_BEHAVIOR
rc = register_supported_control( LDAP_CONTROL_X_CHAINING_BEHAVIOR,
/* SLAP_CTRL_GLOBAL| */ SLAP_CTRL_ACCESS|SLAP_CTRL_HIDE, NULL,
ldap_chain_parse_ctrl, &sc_chainingBehavior );
ldapchain.on_response = ldap_chain_response;
+ ldapchain.on_bi.bi_cf_ocs = chainocs;
+
+ rc = config_register_schema( chaincfg, chainocs );
+ if ( rc ) {
+ return rc;
+ }
+
return overlay_register( &ldapchain );
}
projects / openldap / blobdiff