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Dynamic config support - not fully backward compatible

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This commit is contained in:
Howard Chu 2011-02-04 15:00:10 +00:00
parent e3eecf85c4
commit a815d1821c
4 changed files with 174 additions and 100 deletions
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259
servers/slapd/back-perl/config.c
View File

@ -16,121 +16,184 @@
*/
#include "perl_back.h"
#include "../config.h"
static ConfigDriver perl_cf;
enum {
PERL_MODULE = 1,
PERL_PATH,
PERL_CONFIG
};
static ConfigTable perlcfg[] = {
{ "perlModule", "module", 2, 2, 0,
ARG_STRING|ARG_MAGIC|PERL_MODULE, perl_cf,
"( OLcfgDbAt:11.1 NAME 'olcPerlModule' "
"DESC 'Perl module name' "
"EQUALITY caseExactMatch "
"SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
{ "perlModulePath", "path", 2, 2, 0,
ARG_STRING|ARG_MAGIC|PERL_PATH, perl_cf,
"( OLcfgDbAt:11.2 NAME 'olcPerlModulePath' "
"DESC 'Perl module path' "
"EQUALITY caseExactMatch "
"SYNTAX OMsDirectoryString )", NULL, NULL },
{ "filterSearchResults", "on|off", 2, 2, 0, ARG_ON_OFF|ARG_OFFSET,
(void *)offsetof(PerlBackend, pb_filter_search_results),
"( OLcfgDbAt:11.3 NAME 'olcPerlFilterSearchResults' "
"DESC 'Filter search results before returning to client' "
"SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
{ "perlModuleConfig", "args", 2, 0, 0,
ARG_STRING|ARG_MAGIC|PERL_CONFIG, perl_cf,
"( OLcfgDbAt:11.4 NAME 'olcPerlModuleConfig' "
"DESC 'Perl module config directives' "
"EQUALITY caseExactMatch "
"SYNTAX OMsDirectoryString )", NULL, NULL },
{ NULL }
};
static ConfigOCs perlocs[] = {
{ "( OLcfgDbOc:11.1 "
"NAME 'olcPerlConfig' "
"DESC 'Perl DB configuration' "
"SUP olcDatabaseConfig "
"MUST ( olcPerlModulePath $ olcPerlModule ) "
"MAY ( olcPerlFilterSearchResults $ olcPerlModuleConfig ) )",
Cft_Database, perlcfg, NULL, NULL },
{ NULL }
};
/**********************************************************
*
* Config
*
**********************************************************/
int
perl_back_db_config(
BackendDB *be,
const char *fname,
int lineno,
int argc,
char **argv
static int
perl_cf(
ConfigArgs *c
)
{
PerlBackend *pb = (PerlBackend *) c->be->be_private;
SV* loc_sv;
PerlBackend *perl_back = (PerlBackend *) be->be_private;
char eval_str[EVAL_BUF_SIZE];
int count ;
int args;
int return_code;
int rc = 0;
char eval_str[EVAL_BUF_SIZE];
struct berval bv;
if ( strcasecmp( argv[0], "perlModule" ) == 0 ) {
if ( argc < 2 ) {
Debug( LDAP_DEBUG_ANY,
"%s.pm: line %d: missing module in \"perlModule <module>\" line\n",
fname, lineno, 0 );
return( 1 );
if ( c->op == SLAP_CONFIG_EMIT ) {
switch( c-> type ) {
case PERL_MODULE:
if ( bv.bv_len < 1 )
return 1;
value_add_one( &c->rvalue_vals, &pb->pb_module_name );
break;
case PERL_PATH:
if ( !pb->pb_module_path )
return 1;
ber_bvarray_dup_x( &c->rvalue_vals, pb->pb_module_path, NULL );
break;
case PERL_CONFIG:
if ( !pb->pb_module_config )
return 1;
ber_bvarray_dup_x( &c->rvalue_vals, pb->pb_module_config, NULL );
break;
}
#ifdef PERL_IS_5_6
snprintf( eval_str, EVAL_BUF_SIZE, "use %s;", argv[1] );
eval_pv( eval_str, 0 );
if (SvTRUE(ERRSV)) {
STRLEN n_a;
fprintf(stderr , "Error %s\n", SvPV(ERRSV, n_a)) ;
}
#else
snprintf( eval_str, EVAL_BUF_SIZE, "%s.pm", argv[1] );
perl_require_pv( eval_str );
if (SvTRUE(GvSV(errgv))) {
fprintf(stderr , "Error %s\n", SvPV(GvSV(errgv), na)) ;
}
#endif /* PERL_IS_5_6 */
else {
dSP; ENTER; SAVETMPS;
PUSHMARK(sp);
XPUSHs(sv_2mortal(newSVpv(argv[1], 0)));
PUTBACK;
#ifdef PERL_IS_5_6
count = call_method("new", G_SCALAR);
#else
count = perl_call_method("new", G_SCALAR);
#endif
SPAGAIN;
if (count != 1) {
croak("Big trouble in config\n") ;
}
perl_back->pb_obj_ref = newSVsv(POPs);
PUTBACK; FREETMPS; LEAVE ;
}
} else if ( strcasecmp( argv[0], "perlModulePath" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr,
"%s: line %d: missing module in \"PerlModulePath <module>\" line\n",
fname, lineno );
return( 1 );
}
snprintf( eval_str, EVAL_BUF_SIZE, "push @INC, '%s';", argv[1] );
#ifdef PERL_IS_5_6
loc_sv = eval_pv( eval_str, 0 );
#else
loc_sv = perl_eval_pv( eval_str, 0 );
#endif
/* XXX loc_sv return value is ignored. */
} else if ( strcasecmp( argv[0], "filterSearchResults" ) == 0 ) {
perl_back->pb_filter_search_results = 1;
} else {
return_code = SLAP_CONF_UNKNOWN;
/*
* Pass it to Perl module if defined
} else if ( c->op == LDAP_MOD_DELETE ) {
/* FIXME: none of this affects the state of the perl
* interpreter at all. We should probably destroy it
* and recreate it...
*/
switch( c-> type ) {
case PERL_MODULE:
ch_free( pb->pb_module_name.bv_val );
BER_BVZERO( &pb->pb_module_name );
break;
case PERL_PATH:
if ( c->valx < 0 ) {
ber_bvarray_free( pb->pb_module_path );
pb->pb_module_path = NULL;
} else {
int i = c->valx;
ch_free( pb->pb_module_path[i].bv_val );
for (; pb->pb_module_path[i].bv_val; i++ )
pb->pb_module_path[i] = pb->pb_module_path[i+1];
}
break;
case PERL_CONFIG:
if ( c->valx < 0 ) {
ber_bvarray_free( pb->pb_module_config );
pb->pb_module_config = NULL;
} else {
int i = c->valx;
ch_free( pb->pb_module_config[i].bv_val );
for (; pb->pb_module_config[i].bv_val; i++ )
pb->pb_module_config[i] = pb->pb_module_config[i+1];
}
break;
}
} else {
switch( c->type ) {
case PERL_MODULE:
#ifdef PERL_IS_5_6
snprintf( eval_str, EVAL_BUF_SIZE, "use %s;", c->argv[1] );
eval_pv( eval_str, 0 );
#else
snprintf( eval_str, EVAL_BUF_SIZE, "%s.pm", c->argv[1] );
perl_require_pv( eval_str );
#endif /* PERL_IS_5_6 */
{
if (SvTRUE(ERRSV)) {
STRLEN len;
snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: error %s",
c->log, SvPV(ERRSV, len ));
Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 );
rc = 1;
} else {
dSP; ENTER; SAVETMPS;
PUSHMARK(sp);
XPUSHs(sv_2mortal(newSVpv(c->argv[1], 0)));
PUTBACK;
count = call_method("new", G_SCALAR);
SPAGAIN;
if (count != 1) {
croak("Big trouble in config\n") ;
}
pb->pb_obj_ref = newSVsv(POPs);
PUTBACK; FREETMPS; LEAVE ;
ber_str2bv( c->argv[1], 0, 1, &pb->pb_module_name );
}
break;
case PERL_PATH:
snprintf( eval_str, EVAL_BUF_SIZE, "push @INC, '%s';", c->argv[1] );
loc_sv = eval_pv( eval_str, 0 );
/* XXX loc_sv return value is ignored. */
ber_str2bv( c->argv[1], 0, 0, &bv );
value_add_one( &pb->pb_module_path, &bv );
break;
case PERL_CONFIG: {
dSP ; ENTER ; SAVETMPS;
PUSHMARK(sp) ;
XPUSHs( perl_back->pb_obj_ref );
XPUSHs( pb->pb_obj_ref );
/* Put all arguments on the perl stack */
for( args = 0; args < argc; args++ ) {
XPUSHs(sv_2mortal(newSVpv(argv[args], 0)));
for( args = 1; args < c->argc; args++ ) {
XPUSHs(sv_2mortal(newSVpv(c->argv[args], 0)));
}
PUTBACK ;
#ifdef PERL_IS_5_6
count = call_method("config", G_SCALAR);
#else
count = perl_call_method("config", G_SCALAR);
#endif
SPAGAIN ;
@ -138,14 +201,20 @@ perl_back_db_config(
croak("Big trouble in config\n") ;
}
return_code = POPi;
rc = POPi;
PUTBACK ; FREETMPS ; LEAVE ;
}
break;
}
return return_code;
}
return 0;
return rc;
}
int
perl_back_init_cf( BackendInfo *bi )
{
bi->bi_cf_ocs = perlocs;
return config_register_schema( perlcfg, perlocs );
}

6
servers/slapd/back-perl/init.c
View File

@ -45,7 +45,7 @@ perl_back_initialize(
bi->bi_destroy = 0;
bi->bi_db_init = perl_back_db_init;
bi->bi_db_config = perl_back_db_config;
bi->bi_db_config = 0;
bi->bi_db_open = perl_back_db_open;
bi->bi_db_close = 0;
bi->bi_db_destroy = perl_back_db_destroy;
@ -79,7 +79,7 @@ perl_back_initialize(
ldap_pvt_thread_mutex_init( &perl_interpreter_mutex );
#ifdef PERL_SYS_INIT3
PERL_SYS_INIT3(&argc, &embedding, (char **)NULL);
PERL_SYS_INIT3(&argc, &embedding, (char ***)NULL);
#endif
PERL_INTERPRETER = perl_alloc();
perl_construct(PERL_INTERPRETER);
@ -88,7 +88,7 @@ perl_back_initialize(
#endif
perl_parse(PERL_INTERPRETER, perl_back_xs_init, argc, embedding, (char **)NULL);
perl_run(PERL_INTERPRETER);
return 0;
return perl_back_init_cf( bi );
}
int

7
servers/slapd/back-perl/perl_back.h
View File

@ -46,6 +46,9 @@ extern ldap_pvt_thread_mutex_t perl_interpreter_mutex;
/* All the old style variables are prefixed with PL_ now */
# define errgv PL_errgv
# define na PL_na
#else
# define call_method(m, f) perl_call_method(m, f)
# define ERRSV GvSV(errgv)
#endif
#if defined( HAVE_WIN32_ASPERL ) || defined( USE_ITHREADS )
@ -63,7 +66,9 @@ extern PerlInterpreter *PERL_INTERPRETER;
typedef struct perl_backend_instance {
char *pb_module_name;
struct berval pb_module_name;
BerVarray pb_module_path;
BerVarray pb_module_config;
SV *pb_obj_ref;
int pb_filter_search_results;
} PerlBackend;

2
servers/slapd/back-perl/proto-perl.h
View File

@ -27,7 +27,6 @@ extern BI_close perl_back_close;
extern BI_db_init perl_back_db_init;
extern BI_db_open perl_back_db_open;
extern BI_db_destroy perl_back_db_destroy;
extern BI_db_config perl_back_db_config;
extern BI_op_bind perl_back_bind;
extern BI_op_search perl_back_search;
@ -37,6 +36,7 @@ extern BI_op_modrdn perl_back_modrdn;
extern BI_op_add perl_back_add;
extern BI_op_delete perl_back_delete;
extern int perl_back_init_cf( BackendInfo *bi );
LDAP_END_DECL
#endif /* PROTO_PERL_H */