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Added saslAuthzTo and saslAuthzFrom to system schema.

Browse source 
Added sasl-authz-policy config keyword to control proxy authorization.
Moved sasl-related config processing to sasl.c:slap_sasl_config().
Moved other global defs used only in saslauthz.c into saslauthz.c.
This commit is contained in:
Howard Chu 2002-06-14 08:10:14 +00:00
parent 6f8b100f6b
commit 07a34489c6
7 changed files with 264 additions and 179 deletions
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127
servers/slapd/config.c
View file

@ -61,9 +61,6 @@ char *slapd_args_file = NULL;
char *strtok_quote_ptr;
int nSaslRegexp = 0;
SaslRegexp_t *SaslRegexp = NULL;
#ifdef SLAPD_RLOOKUPS
int use_reverse_lookup = 1;
#else /* !SLAPD_RLOOKUPS */
@ -561,129 +558,11 @@ read_config( const char *fname )
lutil_salt_format( cargv[1] );
/* set SASL host */
} else if ( strcasecmp( cargv[0], "sasl-host" ) == 0 ) {
if ( cargc < 2 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: missing host in \"sasl-host <host>\" line\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: missing host in \"sasl-host <host>\" line\n",
fname, lineno, 0 );
#endif
return( 1 );
}
if ( global_host != NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: already set sasl-host!\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: already set sasl-host!\n",
fname, lineno, 0 );
#endif
/* SASL config options */
} else if ( strncasecmp( cargv[0], "sasl", 4 ) == 0 ) {
if ( slap_sasl_config( cargc, cargv, line, fname, lineno ) )
return 1;
} else {
global_host = ch_strdup( cargv[1] );
}
/* set SASL realm */
} else if ( strcasecmp( cargv[0], "sasl-realm" ) == 0 ) {
if ( cargc < 2 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: missing realm in \"sasl-realm <realm>\" line.\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: missing realm in \"sasl-realm <realm>\" line\n",
fname, lineno, 0 );
#endif
return( 1 );
}
if ( global_realm != NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: already set sasl-realm!\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: already set sasl-realm!\n",
fname, lineno, 0 );
#endif
return 1;
} else {
global_realm = ch_strdup( cargv[1] );
}
} else if ( !strcasecmp( cargv[0], "sasl-regexp" )
|| !strcasecmp( cargv[0], "saslregexp" ) )
{
int rc;
if ( cargc != 3 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: need 2 args in "
"\"saslregexp <match> <replace>\"\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: need 2 args in \"saslregexp <match> <replace>\"\n",
fname, lineno, 0 );
#endif
return( 1 );
}
rc = slap_sasl_regexp_config( cargv[1], cargv[2] );
if ( rc ) {
return rc;
}
/* SASL security properties */
} else if ( strcasecmp( cargv[0], "sasl-secprops" ) == 0 ) {
char *txt;
if ( cargc < 2 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: missing flags in "
"\"sasl-secprops <properties>\" line\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: missing flags in \"sasl-secprops <properties>\" line\n",
fname, lineno, 0 );
#endif
return 1;
}
txt = slap_sasl_secprops( cargv[1] );
if ( txt != NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d sas-secprops: %s\n",
fname, lineno, txt ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: sasl-secprops: %s\n",
fname, lineno, txt );
#endif
return 1;
}
/* set UCDATA path */
} else if ( strcasecmp( cargv[0], "ucdata-path" ) == 0 ) {
int err;

13
servers/slapd/proto-slap.h
View file

@ -840,6 +840,14 @@ LDAP_SLAPD_F (int) slap_sasl_setpass(
LDAPControl *** rspctrls,
const char **text );
LDAP_SLAPD_F (int) slap_sasl_config(
int cargc,
char **cargv,
char *line,
const char *fname,
int lineno );
/*
* saslauthz.c
*/
@ -852,6 +860,8 @@ LDAP_SLAPD_F (int) slap_sasl_authorized LDAP_P((
struct berval *authzid ));
LDAP_SLAPD_F (int) slap_sasl_regexp_config LDAP_P((
const char *match, const char *replace ));
LDAP_SLAPD_F (int) slap_sasl_setpolicy LDAP_P(( const char * ));
/*
* schema.c
@ -1038,9 +1048,6 @@ LDAP_SLAPD_V (int) ldap_syslog;
LDAP_SLAPD_V (struct berval) default_search_base;
LDAP_SLAPD_V (struct berval) default_search_nbase;
LDAP_SLAPD_V (int) nSaslRegexp;
LDAP_SLAPD_V (SaslRegexp_t*) SaslRegexp;
LDAP_SLAPD_V (ldap_pvt_thread_mutex_t) num_sent_mutex;
LDAP_SLAPD_V (unsigned long) num_bytes_sent;
LDAP_SLAPD_V (unsigned long) num_pdu_sent;

165
servers/slapd/sasl.c
View file

@ -44,6 +44,171 @@
static sasl_security_properties_t sasl_secprops;
int slap_sasl_config( int cargc, char **cargv, char *line,
const char *fname, int lineno )
{
/* set SASL proxy authorization policy */
if ( strcasecmp( cargv[0], "sasl-authz-policy" ) == 0 ) {
if ( cargc != 2 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: missing policy in \"sasl-authz-policy <policy>\" line\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: missing policy in \"sasl-authz-policy <policy>\" line\n",
fname, lineno, 0 );
#endif
return( 1 );
}
if ( slap_sasl_setpolicy( cargv[1] ) ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: unable "
"to parse value \"%s\" "
"in \"sasl-authz-policy "
"<policy>\" line.\n",
fname, lineno, cargv[1] ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: unable "
"to parse value \"%s\" "
"in \"sasl-authz-policy "
"<policy>\" line\n",
fname, lineno, cargv[1] );
#endif
return( 1 );
}
/* set SASL host */
} else if ( strcasecmp( cargv[0], "sasl-host" ) == 0 ) {
if ( cargc < 2 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: missing host in \"sasl-host <host>\" line\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: missing host in \"sasl-host <host>\" line\n",
fname, lineno, 0 );
#endif
return( 1 );
}
if ( global_host != NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: already set sasl-host!\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: already set sasl-host!\n",
fname, lineno, 0 );
#endif
return 1;
} else {
global_host = ch_strdup( cargv[1] );
}
/* set SASL realm */
} else if ( strcasecmp( cargv[0], "sasl-realm" ) == 0 ) {
if ( cargc < 2 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: missing realm in \"sasl-realm <realm>\" line.\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: missing realm in \"sasl-realm <realm>\" line\n",
fname, lineno, 0 );
#endif
return( 1 );
}
if ( global_realm != NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: already set sasl-realm!\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: already set sasl-realm!\n",
fname, lineno, 0 );
#endif
return 1;
} else {
global_realm = ch_strdup( cargv[1] );
}
} else if ( !strcasecmp( cargv[0], "sasl-regexp" )
|| !strcasecmp( cargv[0], "saslregexp" ) )
{
int rc;
if ( cargc != 3 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: need 2 args in "
"\"saslregexp <match> <replace>\"\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: need 2 args in \"saslregexp <match> <replace>\"\n",
fname, lineno, 0 );
#endif
return( 1 );
}
rc = slap_sasl_regexp_config( cargv[1], cargv[2] );
if ( rc ) {
return rc;
}
/* SASL security properties */
} else if ( strcasecmp( cargv[0], "sasl-secprops" ) == 0 ) {
char *txt;
if ( cargc < 2 ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d: missing flags in "
"\"sasl-secprops <properties>\" line\n",
fname, lineno ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: missing flags in \"sasl-secprops <properties>\" line\n",
fname, lineno, 0 );
#endif
return 1;
}
txt = slap_sasl_secprops( cargv[1] );
if ( txt != NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
"%s: line %d sasl-secprops: %s\n",
fname, lineno, txt ));
#else
Debug( LDAP_DEBUG_ANY,
"%s: line %d: sasl-secprops: %s\n",
fname, lineno, txt );
#endif
return 1;
}
}
return LDAP_SUCCESS;
}
static int
slap_sasl_log(
void *context,

86
servers/slapd/saslauthz.c
View file

@ -30,6 +30,50 @@
#include <ldap_pvt.h>
#define SASLREGEX_REPLACE 10
typedef struct sasl_uri {
struct berval dn;
struct berval filter;
int scope;
} SaslUri_t;
typedef struct sasl_regexp {
char *sr_match; /* regexp match pattern */
SaslUri_t sr_replace; /* regexp replace pattern */
regex_t sr_workspace; /* workspace for regexp engine */
regmatch_t sr_strings[SASLREGEX_REPLACE]; /* strings matching $1,$2 ... */
int sr_dn_offset[SASLREGEX_REPLACE+2]; /* offsets of $1,$2... in *replace */
int sr_fi_offset[SASLREGEX_REPLACE+2]; /* offsets of $1,$2... in *replace */
} SaslRegexp_t;
static int nSaslRegexp = 0;
static SaslRegexp_t *SaslRegexp = NULL;
/* What SASL proxy authorization policies are allowed? */
#define SASL_AUTHZ_NONE 0
#define SASL_AUTHZ_FROM 1
#define SASL_AUTHZ_TO 2
static int authz_policy = SASL_AUTHZ_NONE;
int slap_sasl_setpolicy( const char *arg )
{
int rc = LDAP_SUCCESS;
if ( strcasecmp( arg, "none" ) == 0 )
authz_policy = SASL_AUTHZ_NONE;
else if ( strcasecmp( arg, "from" ) == 0 )
authz_policy = SASL_AUTHZ_FROM;
else if ( strcasecmp( arg, "to" ) == 0 )
authz_policy = SASL_AUTHZ_TO;
else if ( strcasecmp( arg, "both" ) == 0 )
authz_policy = SASL_AUTHZ_FROM | SASL_AUTHZ_TO;
else
rc = LDAP_OTHER;
return rc;
}
/* URI format: ldap://<host>/<base>[?[<attrs>][?[<scope>][?[<filter>]]]] */
static int slap_parseURI( struct berval *uri,
@ -598,27 +642,21 @@ CONCLUDED:
* The DNs should not have the dn: prefix
*/
static int
slap_sasl_check_authz(struct berval *searchDN, struct berval *assertDN, struct berval *attr, struct berval *authc)
slap_sasl_check_authz(struct berval *searchDN, struct berval *assertDN, AttributeDescription *ad, struct berval *authc)
{
const char *errmsg;
int i, rc;
BerVarray vals=NULL;
AttributeDescription *ad=NULL;
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
"slap_sasl_check_authz: does %s match %s rule in %s?\n",
assertDN->bv_val, attr->bv_val, searchDN->bv_val ));
assertDN->bv_val, ad->ad_cname.bv_val, searchDN->bv_val ));
#else
Debug( LDAP_DEBUG_TRACE,
"==>slap_sasl_check_authz: does %s match %s rule in %s?\n",
assertDN->bv_val, attr->bv_val, searchDN->bv_val);
assertDN->bv_val, ad->ad_cname.bv_val, searchDN->bv_val);
#endif
rc = slap_bv2ad( attr, &ad, &errmsg );
if( rc != LDAP_SUCCESS )
goto COMPLETE;
rc = backend_attribute( NULL, NULL, NULL, NULL, searchDN, ad, &vals );
if( rc != LDAP_SUCCESS )
goto COMPLETE;
@ -636,10 +674,10 @@ COMPLETE:
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
"slap_sasl_check_authz: %s check returning %s\n", attr->bv_val, rc ));
"slap_sasl_check_authz: %s check returning %s\n", ad->ad_cname.bv_val, rc ));
#else
Debug( LDAP_DEBUG_TRACE,
"<==slap_sasl_check_authz: %s check returning %d\n", attr->bv_val, rc, 0);
"<==slap_sasl_check_authz: %s check returning %d\n", ad->ad_cname.bv_val, rc, 0);
#endif
return( rc );
@ -651,12 +689,6 @@ COMPLETE:
* The DNs should not have the dn: prefix
*/
static struct berval sasl_authz_src = {
sizeof(SASL_AUTHZ_SOURCE_ATTR)-1, SASL_AUTHZ_SOURCE_ATTR };
static struct berval sasl_authz_dst = {
sizeof(SASL_AUTHZ_DEST_ATTR)-1, SASL_AUTHZ_DEST_ATTR };
int slap_sasl_authorized( struct berval *authcDN, struct berval *authzDN )
{
int rc = LDAP_INAPPROPRIATE_AUTH;
@ -683,17 +715,21 @@ int slap_sasl_authorized( struct berval *authcDN, struct berval *authzDN )
}
/* Check source rules */
rc = slap_sasl_check_authz( authcDN, authzDN, &sasl_authz_src,
authcDN );
if( rc == LDAP_SUCCESS ) {
goto DONE;
if( authz_policy & SASL_AUTHZ_TO ) {
rc = slap_sasl_check_authz( authcDN, authzDN,
slap_schema.si_ad_saslAuthzTo, authcDN );
if( rc == LDAP_SUCCESS ) {
goto DONE;
}
}
/* Check destination rules */
rc = slap_sasl_check_authz( authzDN, authcDN, &sasl_authz_dst,
authcDN );
if( rc == LDAP_SUCCESS ) {
goto DONE;
if( authz_policy & SASL_AUTHZ_FROM ) {
rc = slap_sasl_check_authz( authzDN, authcDN,
slap_schema.si_ad_saslAuthzFrom, authcDN );
if( rc == LDAP_SUCCESS ) {
goto DONE;
}
}
rc = LDAP_INAPPROPRIATE_AUTH;

16
servers/slapd/schema_prep.c
View file

@ -478,6 +478,22 @@ static struct slap_schema_ad_map {
"SINGLE-VALUE NO-USER-MODIFICATION USAGE dSAOperation )",
NULL, SLAP_AT_HIDE, NULL, NULL, NULL,
offsetof(struct slap_internal_schema, si_ad_children) },
{ "saslAuthzTo", "( 1.3.6.1.4.1.4203.1.3.3 "
"NAME 'saslAuthzTo' "
"DESC 'SASL proxy authorization targets' "
"EQUALITY caseExactMatch "
"SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 "
"USAGE dSAOperation )",
NULL, 0, NULL, NULL, NULL,
offsetof(struct slap_internal_schema, si_ad_saslAuthzTo) },
{ "saslAuthzFrom", "( 1.3.6.1.4.1.4203.1.3.4 "
"NAME 'saslAuthzFrom' "
"DESC 'SASL proxy authorization sources' "
"EQUALITY caseExactMatch "
"SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 "
"USAGE dSAOperation )",
NULL, 0, NULL, NULL, NULL,
offsetof(struct slap_internal_schema, si_ad_saslAuthzFrom) },
#ifdef SLAPD_ACI_ENABLED
{ "OpenLDAPaci", "( 1.3.6.1.4.1.4203.666.1.5 "
"NAME 'OpenLDAPaci' "

22
servers/slapd/slap.h
View file

@ -618,6 +618,8 @@ struct slap_internal_schema {
/* Access Control Internals */
AttributeDescription *si_ad_entry;
AttributeDescription *si_ad_children;
AttributeDescription *si_ad_saslAuthzTo;
AttributeDescription *si_ad_saslAuthzFrom;
#ifdef SLAPD_ACI_ENABLED
AttributeDescription *si_ad_aci;
#endif
@ -1604,26 +1606,6 @@ typedef struct slap_conn {
#define Statslog( level, fmt, connid, opid, arg1, arg2, arg3 )
#endif
#define SASLREGEX_REPLACE 10
#define SASL_AUTHZ_SOURCE_ATTR "saslAuthzTo"
#define SASL_AUTHZ_DEST_ATTR "saslAuthzFrom"
typedef struct sasl_uri {
struct berval dn;
struct berval filter;
int scope;
} SaslUri_t;
typedef struct sasl_regexp {
char *sr_match; /* regexp match pattern */
SaslUri_t sr_replace; /* regexp replace pattern */
regex_t sr_workspace; /* workspace for regexp engine */
regmatch_t sr_strings[SASLREGEX_REPLACE]; /* strings matching $1,$2 ... */
int sr_dn_offset[SASLREGEX_REPLACE+2]; /* offsets of $1,$2... in *replace */
int sr_fi_offset[SASLREGEX_REPLACE+2]; /* offsets of $1,$2... in *replace */
} SaslRegexp_t;
/*
* listener; need to access it from monitor backend
*/

14
servers/slapd/tools/mimic.c
View file

@ -153,14 +153,14 @@ int slap_sasl_setpass(
return LDAP_SUCCESS;
}
char * slap_sasl_secprops( const char *in )
int slap_sasl_config(
int cargc,
char **cargv,
char *line,
const char *fname,
int lineno )
{
return NULL;
}
int slap_sasl_regexp_config( const char *match, const char *replace )
{
return(0);
return LDAP_SUCCESS;
}