#include "portable.h"
#include <stdio.h>
#include <ac/regex.h>
#include <ac/socket.h>
#include <ac/string.h>
#include "slap.h"
#include "sets.h"
#include "lber_pvt.h"
#ifdef LDAP_SLAPI
#include "slapi/slapi.h"
#endif
#define ACL_BUF_SIZE 1024
static struct berval
aci_bv_entry = BER_BVC("entry"),
aci_bv_children = BER_BVC("children"),
aci_bv_br_entry = BER_BVC("[entry]"),
aci_bv_br_all = BER_BVC("[all]"),
aci_bv_access_id = BER_BVC("access-id"),
aci_bv_anonymous = BER_BVC("anonymous"),
aci_bv_public = BER_BVC("public"),
aci_bv_users = BER_BVC("users"),
aci_bv_self = BER_BVC("self"),
aci_bv_dnattr = BER_BVC("dnattr"),
aci_bv_group = BER_BVC("group"),
aci_bv_role = BER_BVC("role"),
aci_bv_set = BER_BVC("set"),
aci_bv_set_ref = BER_BVC("set-ref"),
aci_bv_grant = BER_BVC("grant"),
aci_bv_deny = BER_BVC("deny"),
aci_bv_ip_eq = BER_BVC("IP="),
#ifdef LDAP_PF_LOCAL
aci_bv_path_eq = BER_BVC("PATH="),
aci_bv_dirsep = BER_BVC(LDAP_DIRSEP),
#endif
aci_bv_group_class = BER_BVC(SLAPD_GROUP_CLASS),
aci_bv_group_attr = BER_BVC(SLAPD_GROUP_ATTR),
aci_bv_role_class = BER_BVC(SLAPD_ROLE_CLASS),
aci_bv_role_attr = BER_BVC(SLAPD_ROLE_ATTR),
aci_bv_set_attr = BER_BVC(SLAPD_ACI_SET_ATTR);
static AccessControl * acl_get(
AccessControl *ac, int *count,
Operation *op, Entry *e,
AttributeDescription *desc,
struct berval *val,
int nmatches, regmatch_t *matches,
AccessControlState *state );
static slap_control_t acl_mask(
AccessControl *ac, slap_mask_t *mask,
Operation *op, Entry *e,
AttributeDescription *desc,
struct berval *val,
regmatch_t *matches,
int count,
AccessControlState *state );
#ifdef SLAPD_ACI_ENABLED
static int aci_mask(
Operation *op, Entry *e,
AttributeDescription *desc,
struct berval *val,
struct berval *aci,
regmatch_t *matches,
slap_access_t *grant,
slap_access_t *deny,
struct berval *scope);
#endif
static int regex_matches(
struct berval *pat, char *str, char *buf, regmatch_t *matches);
static void string_expand(
struct berval *newbuf, struct berval *pattern,
char *match, regmatch_t *matches);
typedef struct AciSetCookie {
Operation *op;
Entry *e;
} AciSetCookie;
#ifdef APPLE_USE_DACLS
typedef struct ordered_acl {
unsigned int oa_rank;
char *oa_string;
Backend *oa_be;
} OrderedACL;
int parse_line_for_directory_acls( char* line, int* outArgc, char*** outArgv );
#endif
SLAP_SET_GATHER aci_set_gather;
static int aci_match_set ( struct berval *subj, Operation *op,
Entry *e, int setref );
int
access_allowed(
Operation *op,
Entry *e,
AttributeDescription *desc,
struct berval *val,
slap_access_t access,
AccessControlState *state )
{
int ret = 1;
int count;
AccessControl *a = NULL;
Backend *be;
int be_null = 0;
int mutex_grabbed_in_this_call = 0;
#ifdef LDAP_DEBUG
char accessmaskbuf[ACCESSMASK_MAXLEN];
#endif
slap_mask_t mask;
slap_control_t control;
const char *attr;
regmatch_t matches[MAXREMATCHES];
int st_same_attr = 0;
static AccessControlState state_init = ACL_STATE_INIT;
assert( e != NULL );
assert( desc != NULL );
assert( access > ACL_NONE );
attr = desc->ad_cname.bv_val;
assert( attr != NULL );
if( op && op->o_is_auth_check &&
( access == SLAP_ACL_SEARCH || access == ACL_READ ))
{
access = ACL_AUTH;
}
if( state ) {
if ( state->as_vd_ad==desc) {
if ( state->as_recorded ) {
if( state->as_recorded & ACL_STATE_RECORDED_NV &&
val == NULL )
{
return state->as_result;
} else if ( state->as_recorded & ACL_STATE_RECORDED_VD &&
val != NULL && state->as_vd_acl == NULL )
{
return state->as_result;
}
}
st_same_attr = 1;
} else {
*state = state_init;
}
state->as_vd_ad=desc;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, ENTRY,
"access_allowed: %s access to \"%s\" \"%s\" requested\n",
access2str( access ), e->e_dn, attr );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: %s access to \"%s\" \"%s\" requested\n",
access2str( access ), e->e_dn, attr );
#endif
if ( op == NULL ) {
goto done;
}
be = op->o_bd;
if ( be == NULL ) {
be = &backends[0];
be_null = 1;
op->o_bd = be;
}
assert( be != NULL );
#ifdef LDAP_SLAPI
if ( op->o_pb != NULL ) {
ret = slapi_int_access_allowed( op, e, desc, val, access, state );
if ( ret == 0 ) {
goto done;
}
}
#endif
if ( be != NULL && be_isroot( op ) ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, INFO,
"access_allowed: conn %lu root access granted\n",
op->o_connid, 0, 0 );
#else
Debug( LDAP_DEBUG_ACL,
"<= root access granted\n",
0, 0, 0 );
#endif
goto done;
}
if ( access >= ACL_WRITE && is_at_no_user_mod( desc->ad_type )
&& desc != slap_schema.si_ad_entry
&& desc != slap_schema.si_ad_children )
{
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"access_allowed: conn %lu NoUserMod Operational attribute: %s "
"access granted\n", op->o_connid, attr , 0 );
#else
Debug( LDAP_DEBUG_ACL, "NoUserMod Operational attribute:"
" %s access granted\n",
attr, 0, 0 );
#endif
goto done;
}
if( be != NULL && be->be_acl == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"access_allowed: backend default %s access %s to \"%s\"\n",
access2str( access ),
be->be_dfltaccess >= access ? "granted" : "denied",
op->o_dn.bv_val ? op->o_dn.bv_val : "(anonymous)" );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: backend default %s access %s to \"%s\"\n",
access2str( access ),
be->be_dfltaccess >= access ? "granted" : "denied",
op->o_dn.bv_val ? op->o_dn.bv_val : "(anonymous)" );
#endif
ret = be->be_dfltaccess >= access;
goto done;
#ifdef notdef
} else if ( be == NULL && global_acl == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"access_allowed: global default %s access %s to \"%s\"\n",
access2str( access ),
global_default_access >= access ? "granted" : "denied",
op->o_dn.bv_val );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: global default %s access %s to \"%s\"\n",
access2str( access ),
global_default_access >= access ? "granted" : "denied", op->o_dn.bv_val );
#endif
ret = global_default_access >= access;
goto done;
#endif
}
ret = 0;
control = ACL_BREAK;
#ifdef APPLE_USE_DACLS
if( ( op != NULL ) && ( op->o_bd != NULL ) ) {
ldap_pvt_thread_mutex_lock( &op->o_bd->be_acl_mutex );
mutex_grabbed_in_this_call = 1;
}
#endif
if( st_same_attr ) {
assert( state->as_vd_acl != NULL );
a = state->as_vd_acl;
count = state->as_vd_acl_count;
if ( !ACL_IS_INVALID( state->as_vd_acl_mask )) {
mask = state->as_vd_acl_mask;
AC_MEMCPY( matches, state->as_vd_acl_matches, sizeof(matches) );
goto vd_access;
}
} else {
if ( state ) state->as_vi_acl = NULL;
a = NULL;
ACL_INIT(mask);
count = 0;
memset(matches, '\0', sizeof(matches));
}
while((a = acl_get( a, &count, op, e, desc, val,
MAXREMATCHES, matches, state )) != NULL)
{
int i;
for (i = 0; i < MAXREMATCHES && matches[i].rm_so > 0; i++) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"access_allowed: match[%d]: %d %d ",
i, (int)matches[i].rm_so, (int)matches[i].rm_eo );
#else
Debug( LDAP_DEBUG_ACL, "=> match[%d]: %d %d ", i,
(int)matches[i].rm_so, (int)matches[i].rm_eo );
#endif
if( matches[i].rm_so <= matches[0].rm_eo ) {
int n;
for ( n = matches[i].rm_so; n < matches[i].rm_eo; n++) {
Debug( LDAP_DEBUG_ACL, "%c", e->e_ndn[n], 0, 0 );
}
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, ARGS, "\n" , 0, 0, 0 );
#else
Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 );
#endif
}
if (state) {
if (state->as_vi_acl == a && (state->as_recorded & ACL_STATE_RECORDED_NV)) {
Debug( LDAP_DEBUG_ACL, "access_allowed: result from state (%s)\n", attr, 0, 0 );
ret = state->as_result;
goto done;
} else {
Debug( LDAP_DEBUG_ACL, "access_allowed: no res from state (%s)\n", attr, 0, 0);
}
}
vd_access:
control = acl_mask( a, &mask, op,
e, desc, val, matches, count, state );
if ( control != ACL_BREAK ) {
break;
}
memset(matches, '\0', sizeof(matches));
}
if ( ACL_IS_INVALID( mask ) ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"access_allowed: conn %lu \"%s\" (%s) invalid!\n",
op->o_connid, e->e_dn, attr );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: \"%s\" (%s) invalid!\n",
e->e_dn, attr, 0 );
#endif
ACL_INIT(mask);
} else if ( control == ACL_BREAK ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"access_allowed: conn %lu no more rules\n", op->o_connid, 0,0 );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: no more rules\n", 0, 0, 0);
#endif
goto done;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, ENTRY,
"access_allowed: %s access %s by %s\n",
access2str( access ), ACL_GRANT( mask, access ) ? "granted" : "denied",
accessmask2str( mask, accessmaskbuf ) );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: %s access %s by %s\n",
access2str( access ),
ACL_GRANT(mask, access) ? "granted" : "denied",
accessmask2str( mask, accessmaskbuf ) );
#endif
ret = ACL_GRANT(mask, access);
done:
if( state != NULL ) {
if ( !(state->as_recorded & ACL_STATE_RECORDED_VD) ) {
state->as_vi_acl = a;
state->as_result = ret;
}
state->as_recorded |= ACL_STATE_RECORDED;
}
#ifdef APPLE_USE_DACLS
if( mutex_grabbed_in_this_call )
ldap_pvt_thread_mutex_unlock( &op->o_bd->be_acl_mutex );
#endif
if (be_null) op->o_bd = NULL;
return ret;
}
static AccessControl *
acl_get(
AccessControl *a,
int *count,
Operation *op,
Entry *e,
AttributeDescription *desc,
struct berval *val,
int nmatch,
regmatch_t *matches,
AccessControlState *state )
{
const char *attr;
int dnlen, patlen;
AccessControl *prev;
assert( e != NULL );
assert( count != NULL );
assert( desc != NULL );
attr = desc->ad_cname.bv_val;
assert( attr != NULL );
if( a == NULL ) {
if( op->o_bd == NULL ) {
a = global_acl;
} else {
a = op->o_bd->be_acl;
}
prev = NULL;
assert( a != NULL );
} else {
prev = a;
a = a->acl_next;
}
dnlen = e->e_nname.bv_len;
for ( ; a != NULL; a = a->acl_next ) {
(*count) ++;
if ( a->acl_dn_pat.bv_len || ( a->acl_dn_style != ACL_STYLE_REGEX )) {
if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_get: dnpat [%d] %s nsub: %d\n",
*count, a->acl_dn_pat.bv_val,
(int) a->acl_dn_re.re_nsub );
#else
Debug( LDAP_DEBUG_ACL, "=> dnpat: [%d] %s nsub: %d\n",
*count, a->acl_dn_pat.bv_val, (int) a->acl_dn_re.re_nsub );
#endif
if (regexec(&a->acl_dn_re, e->e_ndn, nmatch, matches, 0))
continue;
} else {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1, "acl_get: dn [%d] %s\n",
*count, a->acl_dn_pat.bv_val, 0 );
#else
Debug( LDAP_DEBUG_ACL, "=> dn: [%d] %s\n",
*count, a->acl_dn_pat.bv_val, 0 );
#endif
patlen = a->acl_dn_pat.bv_len;
if ( dnlen < patlen )
continue;
if ( a->acl_dn_style == ACL_STYLE_BASE ) {
if ( dnlen != patlen )
continue;
} else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
int rdnlen = -1, sep = 0;
if ( dnlen <= patlen )
continue;
if ( patlen > 0 ) {
if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
continue;
sep = 1;
}
rdnlen = dn_rdnlen( NULL, &e->e_nname );
if ( rdnlen != dnlen - patlen - sep )
continue;
} else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
if ( dnlen > patlen && !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
continue;
} else if ( a->acl_dn_style == ACL_STYLE_CHILDREN ) {
if ( dnlen <= patlen )
continue;
if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
continue;
}
if ( strcmp( a->acl_dn_pat.bv_val, e->e_ndn + dnlen - patlen ) != 0 )
continue;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_get: [%d] matched\n", *count, 0, 0 );
#else
Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] matched\n",
*count, 0, 0 );
#endif
}
if ( a->acl_attrs && !ad_inlist( desc, a->acl_attrs ) ) {
matches[0].rm_so = matches[0].rm_eo = -1;
continue;
}
if ( a->acl_attrval.bv_len ) {
if ( val == NULL ) {
continue;
}
if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) {
state->as_recorded |= ACL_STATE_RECORDED_VD;
state->as_vd_acl = prev;
state->as_vd_acl_count = *count;
state->as_vd_access = a->acl_access;
state->as_vd_access_count = 1;
ACL_INVALIDATE( state->as_vd_acl_mask );
}
if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_get: valpat %s\n",
a->acl_attrval.bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_ACL,
"acl_get: valpat %s\n",
a->acl_attrval.bv_val, 0, 0 );
#endif
if (regexec(&a->acl_attrval_re, val->bv_val, 0, NULL, 0))
continue;
} else {
int match = 0;
const char *text;
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_get: val %s\n",
a->acl_attrval.bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_ACL,
"acl_get: val %s\n",
a->acl_attrval.bv_val, 0, 0 );
#endif
if ( a->acl_attrs[0].an_desc->ad_type->sat_syntax != slap_schema.si_syn_distinguishedName ) {
if (value_match( &match, desc,
desc->ad_type->sat_equality, 0,
val, &a->acl_attrval, &text ) != LDAP_SUCCESS ||
match )
continue;
} else {
int patlen, vdnlen;
patlen = a->acl_attrval.bv_len;
vdnlen = val->bv_len;
if ( vdnlen < patlen )
continue;
if ( a->acl_dn_style == ACL_STYLE_BASE ) {
if ( vdnlen > patlen )
continue;
} else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
int rdnlen = -1;
if ( !DN_SEPARATOR( val->bv_val[vdnlen - patlen - 1] ) )
continue;
rdnlen = dn_rdnlen( NULL, val );
if ( rdnlen != vdnlen - patlen - 1 )
continue;
} else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
if ( vdnlen > patlen && !DN_SEPARATOR( val->bv_val[vdnlen - patlen - 1] ) )
continue;
} else if ( a->acl_dn_style == ACL_STYLE_CHILDREN ) {
if ( vdnlen <= patlen )
continue;
if ( !DN_SEPARATOR( val->bv_val[vdnlen - patlen - 1] ) )
continue;
}
if ( strcmp( a->acl_attrval.bv_val, val->bv_val + vdnlen - patlen ))
continue;
}
}
}
if ( a->acl_filter != NULL ) {
ber_int_t rc = test_filter( NULL, e, a->acl_filter );
if ( rc != LDAP_COMPARE_TRUE ) {
continue;
}
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_get: [%d] attr %s\n", *count, attr ,0 );
#else
Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] attr %s\n",
*count, attr, 0);
#endif
return a;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, RESULTS, "acl_get: done.\n", 0, 0, 0 );
#else
Debug( LDAP_DEBUG_ACL, "<= acl_get: done.\n", 0, 0, 0 );
#endif
return( NULL );
}
#define ACL_RECORD_VALUE_STATE do { \
if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) { \
state->as_recorded |= ACL_STATE_RECORDED_VD; \
state->as_vd_acl = a; \
AC_MEMCPY( state->as_vd_acl_matches, matches, \
sizeof( state->as_vd_acl_matches )) ; \
state->as_vd_acl_count = count; \
state->as_vd_access = b; \
state->as_vd_access_count = i; \
} \
} while( 0 )
static slap_control_t
acl_mask(
AccessControl *a,
slap_mask_t *mask,
Operation *op,
Entry *e,
AttributeDescription *desc,
struct berval *val,
regmatch_t *matches,
int count,
AccessControlState *state )
{
int i, odnlen, patlen;
Access *b;
#ifdef LDAP_DEBUG
char accessmaskbuf[ACCESSMASK_MAXLEN];
char accessmaskbuf1[ACCESSMASK_MAXLEN];
#endif
const char *attr;
assert( a != NULL );
assert( mask != NULL );
assert( desc != NULL );
attr = desc->ad_cname.bv_val;
assert( attr != NULL );
#ifdef NEW_LOGGING
LDAP_LOG( ACL, ENTRY,
"acl_mask: conn %lu access to entry \"%s\", attr \"%s\" requested\n",
op->o_connid, e->e_dn, attr );
LDAP_LOG( ACL, ARGS,
" to %s by \"%s\", (%s) \n", val ? "value" : "all values",
op->o_ndn.bv_val ? op->o_ndn.bv_val : "",
accessmask2str( *mask, accessmaskbuf ) );
#else
Debug( LDAP_DEBUG_ACL,
"=> acl_mask: access to entry \"%s\", attr \"%s\" requested\n",
e->e_dn, attr, 0 );
Debug( LDAP_DEBUG_ACL,
"=> acl_mask: to %s by \"%s\", (%s) \n",
val ? "value" : "all values",
op->o_ndn.bv_val ? op->o_ndn.bv_val : "",
accessmask2str( *mask, accessmaskbuf ) );
#endif
if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD )
&& state->as_vd_acl == a )
{
b = state->as_vd_access;
i = state->as_vd_access_count;
} else {
b = a->acl_access;
i = 1;
}
for ( ; b != NULL; b = b->a_next, i++ ) {
slap_mask_t oldmask, modmask;
ACL_INVALIDATE( modmask );
if ( b->a_dn_pat.bv_len != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_dn_pat: %s\n",
op->o_connid, b->a_dn_pat.bv_val ,0 );
#else
Debug( LDAP_DEBUG_ACL, "<= check a_dn_pat: %s\n",
b->a_dn_pat.bv_val, 0, 0);
#endif
if ( bvmatch( &b->a_dn_pat, &aci_bv_anonymous ) ) {
if ( op->o_ndn.bv_len != 0 ) {
continue;
}
} else if ( bvmatch( &b->a_dn_pat, &aci_bv_users ) ) {
if ( op->o_ndn.bv_len == 0 ) {
continue;
}
} else if ( bvmatch( &b->a_dn_pat, &aci_bv_self ) ) {
if ( op->o_ndn.bv_len == 0 ) {
continue;
}
if ( e->e_dn == NULL || !dn_match( &e->e_nname, &op->o_ndn ) ) {
continue;
}
} else if ( b->a_dn_style == ACL_STYLE_REGEX ) {
if ( !ber_bvccmp( &b->a_dn_pat, '*' ) ) {
int ret = regex_matches( &b->a_dn_pat,
op->o_ndn.bv_val, e->e_ndn, matches );
if( ret == 0 ) {
continue;
}
}
} else {
struct berval pat;
int got_match = 0;
if ( e->e_dn == NULL )
continue;
if ( b->a_dn_expand ) {
struct berval bv;
char buf[ACL_BUF_SIZE];
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = buf;
string_expand(&bv, &b->a_dn_pat,
e->e_ndn, matches);
if ( dnNormalize(0, NULL, NULL, &bv, &pat, op->o_tmpmemctx ) != LDAP_SUCCESS ) {
continue;
}
} else {
pat = b->a_dn_pat;
}
patlen = pat.bv_len;
odnlen = op->o_ndn.bv_len;
if ( odnlen < patlen ) {
goto dn_match_cleanup;
}
if ( b->a_dn_style == ACL_STYLE_BASE ) {
if ( odnlen != patlen ) {
goto dn_match_cleanup;
}
} else if ( b->a_dn_style == ACL_STYLE_ONE ) {
int rdnlen = -1;
if ( odnlen <= patlen ) {
goto dn_match_cleanup;
}
if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
goto dn_match_cleanup;
}
rdnlen = dn_rdnlen( NULL, &op->o_ndn );
if ( rdnlen != odnlen - patlen - 1 ) {
goto dn_match_cleanup;
}
} else if ( b->a_dn_style == ACL_STYLE_SUBTREE ) {
if ( odnlen > patlen && !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
goto dn_match_cleanup;
}
} else if ( b->a_dn_style == ACL_STYLE_CHILDREN ) {
if ( odnlen <= patlen ) {
goto dn_match_cleanup;
}
if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
goto dn_match_cleanup;
}
}
got_match = !strcmp( pat.bv_val, op->o_ndn.bv_val + odnlen - patlen );
dn_match_cleanup:;
if ( pat.bv_val != b->a_dn_pat.bv_val ) {
free( pat.bv_val );
}
if ( !got_match ) {
continue;
}
}
}
if ( b->a_sockurl_pat.bv_len ) {
if ( ! op->o_conn->c_listener ) {
continue;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_sockurl_pat: %s\n",
op->o_connid, b->a_sockurl_pat.bv_val , 0 );
#else
Debug( LDAP_DEBUG_ACL, "<= check a_sockurl_pat: %s\n",
b->a_sockurl_pat.bv_val, 0, 0 );
#endif
if ( !ber_bvccmp( &b->a_sockurl_pat, '*' ) ) {
if ( b->a_sockurl_style == ACL_STYLE_REGEX) {
if (!regex_matches( &b->a_sockurl_pat, op->o_conn->c_listener_url.bv_val,
e->e_ndn, matches ) )
{
continue;
}
} else if ( b->a_sockurl_style == ACL_STYLE_EXPAND ) {
struct berval bv;
char buf[ACL_BUF_SIZE];
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = buf;
string_expand( &bv, &b->a_sockurl_pat, e->e_ndn, matches );
if ( ber_bvstrcasecmp( &bv, &op->o_conn->c_listener_url ) != 0 ) {
continue;
}
} else {
if ( ber_bvstrcasecmp( &b->a_sockurl_pat, &op->o_conn->c_listener_url ) != 0 )
continue;
}
}
}
if ( b->a_domain_pat.bv_len ) {
if ( !op->o_conn->c_peer_domain.bv_val ) {
continue;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_domain_pat: %s\n",
op->o_connid, b->a_domain_pat.bv_val , 0 );
#else
Debug( LDAP_DEBUG_ACL, "<= check a_domain_pat: %s\n",
b->a_domain_pat.bv_val, 0, 0 );
#endif
if ( !ber_bvccmp( &b->a_domain_pat, '*' ) ) {
if ( b->a_domain_style == ACL_STYLE_REGEX) {
if (!regex_matches( &b->a_domain_pat, op->o_conn->c_peer_domain.bv_val,
e->e_ndn, matches ) )
{
continue;
}
} else {
char buf[ACL_BUF_SIZE];
struct berval cmp = op->o_conn->c_peer_domain;
struct berval pat = b->a_domain_pat;
if ( b->a_domain_expand ) {
struct berval bv;
bv.bv_len = sizeof(buf) - 1;
bv.bv_val = buf;
string_expand(&bv, &b->a_domain_pat, e->e_ndn, matches);
pat = bv;
}
if ( b->a_domain_style == ACL_STYLE_SUBTREE ) {
int offset = cmp.bv_len - pat.bv_len;
if ( offset < 0 ) {
continue;
}
if ( offset == 1 || ( offset > 1 && cmp.bv_val[ offset - 1 ] != '.' ) ) {
continue;
}
cmp.bv_val = &cmp.bv_val[ offset ];
cmp.bv_len -= offset;
}
if ( ber_bvstrcasecmp( &pat, &cmp ) != 0 ) {
continue;
}
}
}
}
if ( b->a_peername_pat.bv_len ) {
if ( !op->o_conn->c_peer_name.bv_val ) {
continue;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_peername_path: %s\n",
op->o_connid, b->a_peername_pat.bv_val , 0 );
#else
Debug( LDAP_DEBUG_ACL, "<= check a_peername_path: %s\n",
b->a_peername_pat.bv_val, 0, 0 );
#endif
if ( !ber_bvccmp( &b->a_peername_pat, '*' ) ) {
if ( b->a_peername_style == ACL_STYLE_REGEX ) {
if (!regex_matches( &b->a_peername_pat, op->o_conn->c_peer_name.bv_val,
e->e_ndn, matches ) )
{
continue;
}
} else {
if ( b->a_peername_style == ACL_STYLE_BASE ) {
if ( ber_bvstrcasecmp( &b->a_peername_pat, &op->o_conn->c_peer_name ) != 0 ) {
continue;
}
} else if ( b->a_peername_style == ACL_STYLE_EXPAND ) {
struct berval bv;
char buf[ACL_BUF_SIZE];
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = buf;
string_expand( &bv, &b->a_peername_pat, e->e_ndn, matches );
if ( ber_bvstrcasecmp( &bv, &op->o_conn->c_peer_name ) != 0 ) {
continue;
}
} else if ( b->a_peername_style == ACL_STYLE_IP ) {
char *port;
char buf[] = "255.255.255.255";
struct berval ip;
unsigned long addr;
int port_number = -1;
if ( strncasecmp( op->o_conn->c_peer_name.bv_val,
aci_bv_ip_eq.bv_val, aci_bv_ip_eq.bv_len ) != 0 )
continue;
ip.bv_val = op->o_conn->c_peer_name.bv_val + aci_bv_ip_eq.bv_len;
ip.bv_len = op->o_conn->c_peer_name.bv_len - aci_bv_ip_eq.bv_len;
port = strrchr( ip.bv_val, ':' );
if ( port ) {
char *next;
ip.bv_len = port - ip.bv_val;
++port;
port_number = strtol( port, &next, 10 );
if ( next[0] != '\0' )
continue;
}
if ( b->a_peername_port != -1 && port_number != b->a_peername_port )
continue;
if ( ip.bv_len >= sizeof(buf) )
continue;
AC_MEMCPY( buf, ip.bv_val, ip.bv_len );
buf[ ip.bv_len ] = '\0';
addr = inet_addr( buf );
if ( addr == (unsigned long)(-1) )
continue;
if ( (addr & b->a_peername_mask) != b->a_peername_addr )
continue;
#ifdef LDAP_PF_LOCAL
} else if ( b->a_peername_style == ACL_STYLE_PATH ) {
struct berval path;
if ( strncmp( op->o_conn->c_peer_name.bv_val,
aci_bv_path_eq.bv_val, aci_bv_path_eq.bv_len ) != 0 )
continue;
path.bv_val = op->o_conn->c_peer_name.bv_val + aci_bv_path_eq.bv_len;
path.bv_len = op->o_conn->c_peer_name.bv_len - aci_bv_path_eq.bv_len;
if ( ber_bvcmp( &b->a_peername_pat, &path ) != 0 )
continue;
#endif
} else if ( ber_bvcmp( &op->o_conn->c_peer_name, &b->a_peername_pat ) != 0 ) {
continue;
}
}
}
}
if ( b->a_sockname_pat.bv_len ) {
if ( !op->o_conn->c_sock_name.bv_val ) {
continue;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_sockname_path: %s\n",
op->o_connid, b->a_sockname_pat.bv_val , 0 );
#else
Debug( LDAP_DEBUG_ACL, "<= check a_sockname_path: %s\n",
b->a_sockname_pat.bv_val, 0, 0 );
#endif
if ( !ber_bvccmp( &b->a_sockname_pat, '*' ) ) {
if ( b->a_sockname_style == ACL_STYLE_REGEX) {
if (!regex_matches( &b->a_sockname_pat, op->o_conn->c_sock_name.bv_val,
e->e_ndn, matches ) )
{
continue;
}
} else if ( b->a_sockname_style == ACL_STYLE_EXPAND ) {
struct berval bv;
char buf[ACL_BUF_SIZE];
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = buf;
string_expand( &bv, &b->a_sockname_pat, e->e_ndn, matches );
if ( ber_bvstrcasecmp( &bv, &op->o_conn->c_sock_name ) != 0 ) {
continue;
}
} else {
if ( ber_bvstrcasecmp( &b->a_sockname_pat, &op->o_conn->c_sock_name ) != 0 )
continue;
}
}
}
if ( b->a_dn_at != NULL ) {
Attribute *at;
struct berval bv;
int rc, match = 0;
const char *text;
const char *attr = b->a_dn_at->ad_cname.bv_val;
assert( attr != NULL );
if ( op->o_ndn.bv_len == 0 ) {
continue;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_dn_pat: %s\n",
op->o_connid, attr , 0 );
#else
Debug( LDAP_DEBUG_ACL, "<= check a_dn_at: %s\n",
attr, 0, 0);
#endif
bv = op->o_ndn;
for( at = attrs_find( e->e_attrs, b->a_dn_at );
at != NULL;
at = attrs_find( at->a_next, b->a_dn_at ) )
{
if( value_find_ex( b->a_dn_at,
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
at->a_nvals,
&bv, op->o_tmpmemctx ) == 0 )
{
match = 1;
break;
}
}
if( match ) {
if ( b->a_dn_self ) {
if ( val == NULL ) continue;
rc = value_match( &match, b->a_dn_at,
b->a_dn_at->ad_type->sat_equality, 0,
val, &bv, &text );
if (rc != LDAP_SUCCESS || match != 0 )
continue;
}
} else {
if ( ! b->a_dn_self )
continue;
ACL_RECORD_VALUE_STATE;
if ( val == NULL )
continue;
rc = value_match( &match, b->a_dn_at,
b->a_dn_at->ad_type->sat_equality, 0,
val, &bv, &text );
if (rc != LDAP_SUCCESS || match != 0 )
continue;
}
}
if ( b->a_group_pat.bv_len ) {
struct berval bv;
struct berval ndn = BER_BVNULL;
int rc;
if ( op->o_ndn.bv_len == 0 ) {
continue;
}
if ( b->a_group_style == ACL_STYLE_EXPAND ) {
char buf[ACL_BUF_SIZE];
bv.bv_len = sizeof(buf) - 1;
bv.bv_val = buf;
string_expand( &bv, &b->a_group_pat, e->e_ndn, matches );
if ( dnNormalize( 0, NULL, NULL, &bv, &ndn, op->o_tmpmemctx ) != LDAP_SUCCESS ) {
continue;
}
bv = ndn;
} else {
bv = b->a_group_pat;
}
rc = backend_group( op, e, &bv, &op->o_ndn,
b->a_group_oc, b->a_group_at );
if ( ndn.bv_val ) free( ndn.bv_val );
if ( rc != 0 ) {
continue;
}
}
if ( b->a_set_pat.bv_len != 0 ) {
struct berval bv;
char buf[ACL_BUF_SIZE];
if( b->a_set_style == ACL_STYLE_REGEX ){
bv.bv_len = sizeof(buf) - 1;
bv.bv_val = buf;
string_expand( &bv, &b->a_set_pat, e->e_ndn, matches );
}else{
bv = b->a_set_pat;
}
if (aci_match_set( &bv, op, e, 0 ) == 0) {
continue;
}
}
if ( b->a_authz.sai_ssf ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_authz.sai_ssf: ACL %u > OP %u\n",
op->o_connid, b->a_authz.sai_ssf, op->o_ssf );
#else
Debug( LDAP_DEBUG_ACL, "<= check a_authz.sai_ssf: ACL %u > OP %u\n",
b->a_authz.sai_ssf, op->o_ssf, 0 );
#endif
if ( b->a_authz.sai_ssf > op->o_ssf ) {
continue;
}
}
if ( b->a_authz.sai_transport_ssf ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_authz.sai_transport_ssf: "
"ACL %u > OP %u\n",
op->o_connid, b->a_authz.sai_transport_ssf,
op->o_transport_ssf );
#else
Debug( LDAP_DEBUG_ACL,
"<= check a_authz.sai_transport_ssf: ACL %u > OP %u\n",
b->a_authz.sai_transport_ssf, op->o_transport_ssf, 0 );
#endif
if ( b->a_authz.sai_transport_ssf > op->o_transport_ssf ) {
continue;
}
}
if ( b->a_authz.sai_tls_ssf ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_authz.sai_tls_ssf: ACL %u > "
"OP %u\n",
op->o_connid, b->a_authz.sai_tls_ssf, op->o_tls_ssf );
#else
Debug( LDAP_DEBUG_ACL,
"<= check a_authz.sai_tls_ssf: ACL %u > OP %u\n",
b->a_authz.sai_tls_ssf, op->o_tls_ssf, 0 );
#endif
if ( b->a_authz.sai_tls_ssf > op->o_tls_ssf ) {
continue;
}
}
if ( b->a_authz.sai_sasl_ssf ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu check a_authz.sai_sasl_ssf: "
"ACL %u > OP %u\n",
op->o_connid, b->a_authz.sai_sasl_ssf, op->o_sasl_ssf );
#else
Debug( LDAP_DEBUG_ACL,
"<= check a_authz.sai_sasl_ssf: ACL %u > OP %u\n",
b->a_authz.sai_sasl_ssf, op->o_sasl_ssf, 0 );
#endif
if ( b->a_authz.sai_sasl_ssf > op->o_sasl_ssf ) {
continue;
}
}
#ifdef SLAPD_ACI_ENABLED
if ( b->a_aci_at != NULL ) {
Attribute *at;
slap_access_t grant, deny, tgrant, tdeny;
struct berval parent_ndn, old_parent_ndn;
BerVarray bvals = NULL;
int ret,stop;
if ( e->e_nname.bv_len == 0 ) {
continue;
}
if ( ! ACL_GRANT( b->a_access_mask, *mask ) ) {
continue;
}
ACL_INIT(tgrant);
ACL_INIT(tdeny);
at = attr_find( e->e_attrs, b->a_aci_at );
if ( at != NULL ) {
#if 0
ACL_RECORD_VALUE_STATE;
#endif
for ( i = 0; at->a_vals[i].bv_val != NULL; i++ ) {
if (aci_mask( op,
e, desc, val,
&at->a_nvals[i],
matches, &grant, &deny, &aci_bv_entry ) != 0)
{
tgrant |= grant;
tdeny |= deny;
}
}
Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n",
accessmask2str(tgrant,accessmaskbuf),
accessmask2str(tdeny, accessmaskbuf1), 0);
}
if( (tgrant == ACL_PRIV_NONE) && (tdeny == ACL_PRIV_NONE) ){
dnParent(&(e->e_nname), &parent_ndn);
while ( parent_ndn.bv_val != old_parent_ndn.bv_val ){
old_parent_ndn = parent_ndn;
Debug(LDAP_DEBUG_ACL, "checking ACI of %s\n", parent_ndn.bv_val, 0, 0);
ret = backend_attribute(op, NULL, &parent_ndn, b->a_aci_at, &bvals, ACL_AUTH);
switch(ret){
case LDAP_SUCCESS :
stop = 0;
if (!bvals){
break;
}
for( i = 0; bvals[i].bv_val != NULL; i++){
#if 0
ACL_RECORD_VALUE_STATE;
#endif
if (aci_mask(op, e, desc, val, &bvals[i], matches,
&grant, &deny, &aci_bv_children) != 0) {
tgrant |= grant;
tdeny |= deny;
if( (tgrant != ACL_PRIV_NONE) || (tdeny != ACL_PRIV_NONE) ){
stop = 1;
}
}
Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n",
accessmask2str(tgrant,accessmaskbuf),
accessmask2str(tdeny, accessmaskbuf1), 0);
}
break;
case LDAP_NO_SUCH_ATTRIBUTE:
Debug(LDAP_DEBUG_ACL, "no such attribute\n", 0, 0, 0);
stop = 0;
break;
case LDAP_NO_SUCH_OBJECT:
Debug(LDAP_DEBUG_ACL, "no such object\n", 0, 0, 0);
stop = 1;
break;
default:
stop = 1;
break;
}
if (stop){
break;
}
dnParent(&old_parent_ndn, &parent_ndn);
}
}
tgrant &= b->a_access_mask & ACL_PRIV_MASK;
tdeny &= ACL_PRIV_MASK;
if( ACL_IS_INVALID(tgrant) && ACL_IS_INVALID(tdeny) ) {
continue;
}
if (ACL_IS_INVALID(tdeny)) {
modmask = tgrant | ACL_PRIV_ADDITIVE;
} else if (ACL_IS_INVALID(tgrant)) {
modmask = tdeny | ACL_PRIV_SUBSTRACTIVE;
} else {
modmask = (tgrant & ~tdeny) | ACL_PRIV_ADDITIVE;
}
} else
#endif
{
modmask = b->a_access_mask;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, RESULTS,
"acl_mask: [%d] applying %s (%s)\n",
i, accessmask2str( modmask, accessmaskbuf),
b->a_type == ACL_CONTINUE ? "continue" : b->a_type == ACL_BREAK
? "break" : "stop" );
#else
Debug( LDAP_DEBUG_ACL,
"<= acl_mask: [%d] applying %s (%s)\n",
i, accessmask2str( modmask, accessmaskbuf ),
b->a_type == ACL_CONTINUE
? "continue"
: b->a_type == ACL_BREAK
? "break"
: "stop" );
#endif
oldmask = *mask;
if( ACL_IS_ADDITIVE(modmask) ) {
ACL_PRIV_SET( *mask, modmask );
ACL_PRIV_CLR( *mask, ~ACL_PRIV_MASK );
} else if( ACL_IS_SUBTRACTIVE(modmask) ) {
ACL_PRIV_CLR( *mask, modmask );
ACL_PRIV_CLR( *mask, ~ACL_PRIV_MASK );
} else {
*mask = modmask;
}
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_mask: conn %lu [%d] mask: %s\n",
op->o_connid, i, accessmask2str( *mask, accessmaskbuf) );
#else
Debug( LDAP_DEBUG_ACL,
"<= acl_mask: [%d] mask: %s\n",
i, accessmask2str(*mask, accessmaskbuf), 0 );
#endif
if( b->a_type == ACL_CONTINUE ) {
continue;
} else if ( b->a_type == ACL_BREAK ) {
return ACL_BREAK;
} else {
return ACL_STOP;
}
}
ACL_INIT(*mask);
#ifdef NEW_LOGGING
LDAP_LOG( ACL, RESULTS,
"acl_mask: conn %lu no more <who> clauses, returning %d (stop)\n",
op->o_connid, accessmask2str( *mask, accessmaskbuf) , 0 );
#else
Debug( LDAP_DEBUG_ACL,
"<= acl_mask: no more <who> clauses, returning %s (stop)\n",
accessmask2str(*mask, accessmaskbuf), 0, 0 );
#endif
return ACL_STOP;
}
int
acl_check_modlist(
Operation *op,
Entry *e,
Modifications *mlist
)
{
struct berval *bv;
AccessControlState state = ACL_STATE_INIT;
Backend *be;
int be_null = 0;
int ret = 1;
be = op->o_bd;
if ( be == NULL ) {
be = &backends[0];
be_null = 1;
op->o_bd = be;
}
assert( be != NULL );
if ( be_isroot( op ) ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_check_modlist: conn %lu access granted to root user\n",
op->o_connid, 0, 0 );
#else
Debug( LDAP_DEBUG_ACL,
"<= acl_access_allowed: granted to database root\n",
0, 0, 0 );
#endif
goto done;
}
if( op->o_bd != NULL && op->o_bd->be_acl == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_check_modlist: backend default %s access %s to \"%s\"\n",
access2str( ACL_WRITE ),
op->o_bd->be_dfltaccess >= ACL_WRITE ? "granted" : "denied",
op->o_dn.bv_val );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: backend default %s access %s to \"%s\"\n",
access2str( ACL_WRITE ),
op->o_bd->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn.bv_val );
#endif
ret = (op->o_bd->be_dfltaccess >= ACL_WRITE);
goto done;
}
for ( ; mlist != NULL; mlist = mlist->sml_next ) {
if ( is_at_no_user_mod( mlist->sml_desc->ad_type ) ) {
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"acl_check_modlist: conn %lu no-user-mod %s: modify access granted\n",
op->o_connid, mlist->sml_desc->ad_cname.bv_val , 0 );
#else
Debug( LDAP_DEBUG_ACL, "acl: no-user-mod %s:"
" modify access granted\n",
mlist->sml_desc->ad_cname.bv_val, 0, 0 );
#endif
continue;
}
switch ( mlist->sml_op ) {
case LDAP_MOD_REPLACE:
if ( ! access_allowed( op, e,
mlist->sml_desc, NULL, ACL_WRITE, &state ) )
{
ret = 0;
goto done;
}
if ( mlist->sml_values == NULL ) break;
case LDAP_MOD_ADD:
assert( mlist->sml_values != NULL );
for ( bv = mlist->sml_nvalues
? mlist->sml_nvalues : mlist->sml_values;
bv->bv_val != NULL; bv++ )
{
if ( ! access_allowed( op, e,
mlist->sml_desc, bv, ACL_WRITE, &state ) )
{
ret = 0;
goto done;
}
}
break;
case LDAP_MOD_DELETE:
if ( mlist->sml_values == NULL ) {
if ( ! access_allowed( op, e,
mlist->sml_desc, NULL, ACL_WRITE, NULL ) )
{
ret = 0;
goto done;
}
break;
}
for ( bv = mlist->sml_nvalues
? mlist->sml_nvalues : mlist->sml_values;
bv->bv_val != NULL; bv++ )
{
if ( ! access_allowed( op, e,
mlist->sml_desc, bv, ACL_WRITE, &state ) )
{
ret = 0;
goto done;
}
}
break;
case SLAP_MOD_SOFTADD:
break;
default:
assert( 0 );
ret = 0;
break;
}
}
done:
if (be_null) op->o_bd = NULL;
return( ret );
}
#ifdef APPLE_USE_DACLS
#define OBSOLETE_DACL "obsolete"
int ordered_ACL_compare( const void* item_one, const void* item_two )
{
OrderedACL* ordered_ACL_one;
OrderedACL* ordered_ACL_two;
ordered_ACL_one = (OrderedACL*)item_one;
ordered_ACL_two = (OrderedACL*)item_two;
if( ordered_ACL_one->oa_string == NULL )
return -1;
else if( ordered_ACL_two->oa_string == NULL )
return 1;
return ordered_ACL_one->oa_rank - ordered_ACL_two->oa_rank;
}
void acl_load_directory_based_acls( int first_load, Backend* backend )
{
DirectoryBasedACL *dACL;
DirectoryBasedACL *tmp_dACL = NULL;
int rc;
BerValue dn;
BerValue ndn;
BerValue pretty_dn;
BerValue *bv;
BerValue obsolete_bv;
Operation op = {0};
Entry *entry = NULL;
Attribute *attrsValues;
unsigned int i,j,len;
unsigned int num_vals=0;
OrderedACL *orderedACLs=NULL;
int argc;
char **argv;
AccessControl *ac = NULL;
AccessControl *prev_ac = NULL;
AccessControl *tmp_ac = NULL;
char* bv_str = NULL;
char* tmp_str = NULL;
char str_valid = 1;
ber_str2bv( OBSOLETE_DACL, strlen( OBSOLETE_DACL ), 0, &obsolete_bv );
if( !first_load ) {
if( backend != NULL )
ldap_pvt_thread_mutex_lock( &backend->be_acl_mutex );
if( backend != NULL ) {
for( ac = backend->be_acl, prev_ac = NULL; ( ac != NULL ) && ( ac != global_acl ); ) {
if( ac->acl_dacl_dn.bv_len > 0 ) {
ber_str2bv( OBSOLETE_DACL, strlen( OBSOLETE_DACL ), 1, &ac->acl_dacl_dn );
}
ac = ac->acl_next;
}
}
ac = prev_ac = tmp_ac = NULL;
tmp_dACL = NULL;
if( backend != NULL )
ldap_pvt_thread_mutex_unlock( &backend->be_acl_mutex );
}
op.o_tmpmfuncs = &ch_mfuncs;
op.o_threadctx = ldap_pvt_thread_pool_context();
dACL = global_dacl;
for( ; dACL != NULL; dACL = dACL->dacl_next ) {
op.o_time = slap_get_time();
ndn.bv_len = 0;
ndn.bv_val = NULL;
dn.bv_len = strlen( dACL->dn );
dn.bv_val = dACL->dn;
if ( dnPrettyNormal( NULL, &dn, &pretty_dn, &ndn, NULL) != LDAP_SUCCESS )
continue;
op.o_bd = select_backend( &ndn, 0, 0 );
rc = be_entry_get_rw( &op, &ndn, oc_find( dACL->object_type ),
slap_schema.si_ad_accessControlEntry, 0, &entry );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr,
"couldn't read the ACL entry from the directory(%d): %s\n",
rc, ldap_err2string(rc) );
continue;
}
if( entry != NULL ) {
for( attrsValues = entry->e_attrs; attrsValues != NULL; attrsValues = attrsValues->a_next ) {
if( ber_bvcmp( &slap_schema.si_ad_accessControlEntry->ad_cname,
&attrsValues->a_desc->ad_cname ) != 0 )
continue;
bv = attrsValues->a_vals;
for( num_vals=0; bv[num_vals].bv_val != NULL; num_vals++ )
;
orderedACLs = (OrderedACL *)ch_calloc( num_vals + 1, sizeof(OrderedACL) );
for( i=0; i < num_vals; i++ ) {
bv_str = (char *)ch_calloc( bv[i].bv_len + 1, sizeof(char) );
memcpy( bv_str, bv[i].bv_val, bv[i].bv_len );
str_valid = 1;
if( !isdigit( bv_str[0] ) )
str_valid = 0;
if( str_valid )
{
len = bv_str;
for( j=1; j < len && isdigit( bv_str[j] ); j++ )
;
if( j >= len )
str_valid = 0;
else if( bv_str[j] != ':' )
str_valid = 0;
}
if( !str_valid )
{
orderedACLs[i].oa_string = NULL;
continue;
}
sscanf( bv_str, "%d", &orderedACLs[i].oa_rank);
tmp_str = strchr( bv_str, ':' );
orderedACLs[i].oa_string = ch_strdup( &tmp_str[1] );
orderedACLs[i].oa_be = op.o_bd;
ch_free( bv_str );
bv_str = NULL;
tmp_str = NULL;
}
break;
}
}
rc = be_entry_release_rw( &op, entry, 0 );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr,
"couldn't release the ACL entry from the directory(%d): %s\n",
rc, ldap_err2string(rc) );
}
qsort( orderedACLs, num_vals, sizeof( *orderedACLs ), ordered_ACL_compare );
if( !first_load && ( backend != NULL ) )
ldap_pvt_thread_mutex_lock( &backend->be_acl_mutex );
for( i=0; i<num_vals; i++ ) {
if( orderedACLs[i].oa_string == NULL )
continue;
if ( parse_line_for_directory_acls( orderedACLs[i].oa_string, &argc, &argv ) != 0 )
continue;
parse_acl( orderedACLs[i].oa_be, "directory based ACLs", -1, argc, argv, &dn );
ch_free( orderedACLs[i].oa_string );
for( j=0; j<argc; j++ )
ch_free( argv[j] );
ch_free( argv );
}
ch_free( orderedACLs );
if( backend != NULL ) {
for( ac = backend->be_acl, prev_ac = NULL; ( ac != NULL ) && ( ac != global_acl ); ) {
if( ber_bvcmp( &ac->acl_dacl_dn, &obsolete_bv ) == 0 ) {
if( prev_ac == NULL )
backend->be_acl = ac->acl_next;
else
prev_ac->acl_next = ac->acl_next;
tmp_ac = ac;
ac = ac->acl_next;
slap_acl_free( tmp_ac );
} else {
prev_ac = ac;
ac = ac->acl_next;
}
}
}
if( !first_load && ( backend != NULL ) )
ldap_pvt_thread_mutex_unlock( &backend->be_acl_mutex );
}
}
#endif
static int
aci_get_part(
struct berval *list,
int ix,
char sep,
struct berval *bv )
{
int len;
char *p;
if (bv) {
BER_BVZERO( bv );
}
len = list->bv_len;
p = list->bv_val;
while (len >= 0 && --ix >= 0) {
while (--len >= 0 && *p++ != sep) ;
}
while (len >= 0 && *p == ' ') {
len--;
p++;
}
if (len < 0)
return(-1);
if (!bv)
return(0);
bv->bv_val = p;
while (--len >= 0 && *p != sep) {
bv->bv_len++;
p++;
}
while (bv->bv_len > 0 && *--p == ' ')
bv->bv_len--;
return(bv->bv_len);
}
BerVarray
aci_set_gather (SetCookie *cookie, struct berval *name, struct berval *attr)
{
AciSetCookie *cp = (AciSetCookie *)cookie;
BerVarray bvals = NULL;
struct berval ndn;
if (dnNormalize(0, NULL, NULL, name, &ndn, cp->op->o_tmpmemctx) == LDAP_SUCCESS) {
const char *text;
AttributeDescription *desc = NULL;
if (slap_bv2ad(attr, &desc, &text) == LDAP_SUCCESS) {
backend_attribute(cp->op,
cp->e, &ndn, desc, &bvals, ACL_NONE);
}
sl_free(ndn.bv_val, cp->op->o_tmpmemctx);
}
return(bvals);
}
static int
aci_match_set (
struct berval *subj,
Operation *op,
Entry *e,
int setref
)
{
struct berval set = BER_BVNULL;
int rc = 0;
AciSetCookie cookie;
if (setref == 0) {
ber_dupbv_x( &set, subj, op->o_tmpmemctx );
} else {
struct berval subjdn, ndn = BER_BVNULL;
struct berval setat;
BerVarray bvals;
const char *text;
AttributeDescription *desc = NULL;
if (aci_get_part(subj, 0, '/', &subjdn) < 0) {
return(0);
}
if ( aci_get_part(subj, 1, '/', &setat) < 0 ) {
setat = aci_bv_set_attr;
}
if ( slap_bv2ad(&setat, &desc, &text) == LDAP_SUCCESS ) {
if ( dnNormalize(0, NULL, NULL, &subjdn, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS )
{
backend_attribute( op, e, &ndn, desc, &bvals, ACL_NONE );
if ( bvals != NULL && bvals[0].bv_val != NULL ) {
int i;
set = bvals[0];
bvals[0].bv_val = NULL;
for (i=1;bvals[i].bv_val;i++);
bvals[0].bv_val = bvals[i-1].bv_val;
bvals[i-1].bv_val = NULL;
}
ber_bvarray_free_x(bvals, op->o_tmpmemctx);
sl_free(ndn.bv_val, op->o_tmpmemctx);
}
}
}
if (set.bv_val != NULL) {
cookie.op = op;
cookie.e = e;
rc = (slap_set_filter(aci_set_gather, (SetCookie *)&cookie, &set,
&op->o_ndn, &e->e_nname, NULL) > 0);
sl_free(set.bv_val, op->o_tmpmemctx);
}
return(rc);
}
#ifdef SLAPD_ACI_ENABLED
static int
aci_list_map_rights(
struct berval *list )
{
struct berval bv;
slap_access_t mask;
int i;
ACL_INIT(mask);
for (i = 0; aci_get_part(list, i, ',', &bv) >= 0; i++) {
if (bv.bv_len <= 0)
continue;
switch (*bv.bv_val) {
case 'c':
ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
break;
case 's':
ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
break;
case 'r':
ACL_PRIV_SET(mask, ACL_PRIV_READ);
break;
case 'w':
ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
break;
case 'x':
ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
break;
default:
break;
}
}
return(mask);
}
static int
aci_list_has_attr(
struct berval *list,
const struct berval *attr,
struct berval *val )
{
struct berval bv, left, right;
int i;
for (i = 0; aci_get_part(list, i, ',', &bv) >= 0; i++) {
if (aci_get_part(&bv, 0, '=', &left) < 0
|| aci_get_part(&bv, 1, '=', &right) < 0)
{
if (ber_bvstrcasecmp(attr, &bv) == 0)
return(1);
} else if (val == NULL) {
if (ber_bvstrcasecmp(attr, &left) == 0)
return(1);
} else {
if (ber_bvstrcasecmp(attr, &left) == 0) {
if (aci_get_part(&right, 0, '*', &left) < 0
|| right.bv_len <= left.bv_len)
{
if (ber_bvstrcasecmp(val, &right) == 0)
return(1);
} else if (val->bv_len >= left.bv_len) {
if (strncasecmp( val->bv_val, left.bv_val, left.bv_len ) == 0)
return(1);
}
}
}
}
return(0);
}
static slap_access_t
aci_list_get_attr_rights(
struct berval *list,
const struct berval *attr,
struct berval *val )
{
struct berval bv;
slap_access_t mask;
int i;
ACL_INIT(mask);
for (i = 1; aci_get_part(list, i + 1, ';', &bv) >= 0; i += 2) {
if (aci_list_has_attr(&bv, attr, val) == 0)
continue;
if (aci_get_part(list, i, ';', &bv) < 0)
continue;
mask |= aci_list_map_rights(&bv);
}
return(mask);
}
static int
aci_list_get_rights(
struct berval *list,
const struct berval *attr,
struct berval *val,
slap_access_t *grant,
slap_access_t *deny )
{
struct berval perm, actn;
slap_access_t *mask;
int i, found;
if (attr == NULL || attr->bv_len == 0
|| ber_bvstrcasecmp( attr, &aci_bv_entry ) == 0) {
attr = &aci_bv_br_entry;
}
found = 0;
ACL_INIT(*grant);
ACL_INIT(*deny);
for (i = 0; aci_get_part(list, i, '$', &perm) >= 0; i++) {
if (aci_get_part(&perm, 0, ';', &actn) < 0)
continue;
if (ber_bvstrcasecmp( &aci_bv_grant, &actn ) == 0) {
mask = grant;
} else if (ber_bvstrcasecmp( &aci_bv_deny, &actn ) == 0) {
mask = deny;
} else {
continue;
}
found = 1;
*mask |= aci_list_get_attr_rights(&perm, attr, val);
*mask |= aci_list_get_attr_rights(&perm, &aci_bv_br_all, NULL);
}
return(found);
}
static int
aci_group_member (
struct berval *subj,
struct berval *defgrpoc,
struct berval *defgrpat,
Operation *op,
Entry *e,
regmatch_t *matches
)
{
struct berval subjdn;
struct berval grpoc;
struct berval grpat;
ObjectClass *grp_oc = NULL;
AttributeDescription *grp_ad = NULL;
const char *text;
int rc;
if (aci_get_part(subj, 0, '/', &subjdn) < 0) {
return(0);
}
if (aci_get_part(subj, 1, '/', &grpoc) < 0) {
grpoc = *defgrpoc;
}
if (aci_get_part(subj, 2, '/', &grpat) < 0) {
grpat = *defgrpat;
}
rc = slap_bv2ad( &grpat, &grp_ad, &text );
if( rc != LDAP_SUCCESS ) {
rc = 0;
goto done;
}
rc = 0;
grp_oc = oc_bvfind( &grpoc );
if (grp_oc != NULL && grp_ad != NULL ) {
char buf[ACL_BUF_SIZE];
struct berval bv, ndn;
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = (char *)&buf;
string_expand(&bv, &subjdn, e->e_ndn, matches);
if ( dnNormalize(0, NULL, NULL, &bv, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS ) {
rc = (backend_group(op, e, &ndn, &op->o_ndn,
grp_oc, grp_ad) == 0);
free( ndn.bv_val );
}
}
done:
return(rc);
}
static int
aci_mask(
Operation *op,
Entry *e,
AttributeDescription *desc,
struct berval *val,
struct berval *aci,
regmatch_t *matches,
slap_access_t *grant,
slap_access_t *deny,
struct berval *scope
)
{
struct berval bv, perms, sdn;
int rc;
assert( desc->ad_cname.bv_val != NULL );
if (aci_get_part(aci, 4, '#', NULL) < 0)
return(0);
if (aci_get_part(aci, 0, '#', &bv) < 0)
return(0);
if (aci_get_part(aci, 1, '#', &bv) < 0
|| ber_bvstrcasecmp( scope, &bv ) != 0)
{
return(0);
}
if (aci_get_part(aci, 2, '#', &perms) <= 0)
return(0);
if (aci_list_get_rights(&perms, &desc->ad_cname, val, grant, deny) == 0)
return(0);
if (aci_get_part(aci, 3, '#', &bv) < 0)
return(0);
if (ber_bvstrcasecmp( &aci_bv_public, &bv ) == 0) {
return(1);
}
if ( BER_BVISNULL( &op->o_ndn ) || BER_BVISEMPTY( &op->o_ndn ) ) {
return 0;
}
#if 0
if (aci_get_part(aci, 4, '#', &sdn) < 0)
return(0);
#endif
sdn.bv_val = bv.bv_val + bv.bv_len + STRLENOF( "#" );
sdn.bv_len = aci->bv_len - ( sdn.bv_val - aci->bv_val );
if (ber_bvstrcasecmp( &aci_bv_access_id, &bv ) == 0) {
struct berval ndn;
rc = 0;
if ( dnNormalize(0, NULL, NULL, &sdn, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS ) {
if (dn_match( &op->o_ndn, &ndn))
rc = 1;
free(ndn.bv_val);
}
return (rc);
} else if (ber_bvstrcasecmp( &aci_bv_self, &bv ) == 0) {
if (dn_match(&op->o_ndn, &e->e_nname))
return(1);
} else if (ber_bvstrcasecmp( &aci_bv_dnattr, &bv ) == 0) {
Attribute *at;
AttributeDescription *ad = NULL;
const char *text;
rc = slap_bv2ad( &sdn, &ad, &text );
if( rc != LDAP_SUCCESS ) {
return 0;
}
rc = 0;
bv = op->o_ndn;
for(at = attrs_find( e->e_attrs, ad );
at != NULL;
at = attrs_find( at->a_next, ad ) )
{
if (value_find_ex( ad,
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
at->a_nvals,
&bv, op->o_tmpmemctx) == 0 )
{
rc = 1;
break;
}
}
return rc;
} else if (ber_bvstrcasecmp( &aci_bv_group, &bv ) == 0) {
if (aci_group_member(&sdn, &aci_bv_group_class, &aci_bv_group_attr, op, e, matches))
return(1);
} else if (ber_bvstrcasecmp( &aci_bv_role, &bv ) == 0) {
if (aci_group_member(&sdn, &aci_bv_role_class, &aci_bv_role_attr, op, e, matches))
return(1);
} else if (ber_bvstrcasecmp( &aci_bv_set, &bv ) == 0) {
if (aci_match_set(&sdn, op, e, 0))
return(1);
} else if (ber_bvstrcasecmp( &aci_bv_set_ref, &bv ) == 0) {
if (aci_match_set(&sdn, op, e, 1))
return(1);
}
return(0);
}
#endif
static void
string_expand(
struct berval *bv,
struct berval *pat,
char *match,
regmatch_t *matches)
{
ber_len_t size;
char *sp;
char *dp;
int flag;
size = 0;
bv->bv_val[0] = '\0';
bv->bv_len--;
flag = 0;
for ( dp = bv->bv_val, sp = pat->bv_val; size < bv->bv_len &&
sp < pat->bv_val + pat->bv_len ; sp++ )
{
if ( flag ) {
if ( flag == 1 && *sp == '$' ) {
*dp++ = '$';
size++;
flag = 0;
} else if ( flag == 1 && *sp == '{' ) {
flag = 2;
} else if ( *sp >= '0' && *sp <= '9' ) {
int n;
int i;
int l;
n = *sp - '0';
if ( flag == 2 ) {
for ( sp++; *sp != '\0' && *sp != '}'; sp++ ) {
if ( *sp >= '0' && *sp <= '9' ) {
n = 10*n + ( *sp - '0' );
}
}
if ( *sp != '}' ) {
}
}
if ( n >= MAXREMATCHES ) {
}
*dp = '\0';
i = matches[n].rm_so;
l = matches[n].rm_eo;
for ( ; size < bv->bv_len && i < l; size++, i++ ) {
*dp++ = match[i];
}
*dp = '\0';
flag = 0;
}
} else {
if (*sp == '$') {
flag = 1;
} else {
*dp++ = *sp;
size++;
}
}
}
if ( flag ) {
*dp++ = '$';
size++;
}
*dp = '\0';
bv->bv_len = size;
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL1,
"string_expand: pattern = %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
LDAP_LOG( ACL, DETAIL1, "string_expand: expanded = %s\n", bv->bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE, "=> string_expand: pattern: %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
Debug( LDAP_DEBUG_TRACE, "=> string_expand: expanded: %s\n", bv->bv_val, 0, 0 );
#endif
}
static int
regex_matches(
struct berval *pat,
char *str,
char *buf,
regmatch_t *matches
)
{
regex_t re;
char newbuf[ACL_BUF_SIZE];
struct berval bv;
int rc;
bv.bv_len = sizeof(newbuf) - 1;
bv.bv_val = newbuf;
if(str == NULL) str = "";
string_expand(&bv, pat, buf, matches);
if (( rc = regcomp(&re, newbuf, REG_EXTENDED|REG_ICASE))) {
char error[ACL_BUF_SIZE];
regerror(rc, &re, error, sizeof(error));
#ifdef NEW_LOGGING
LDAP_LOG( ACL, ERR,
"regex_matches: compile( \"%s\", \"%s\") failed %s\n",
pat->bv_val, str, error );
#else
Debug( LDAP_DEBUG_TRACE,
"compile( \"%s\", \"%s\") failed %s\n",
pat->bv_val, str, error );
#endif
return( 0 );
}
rc = regexec(&re, str, 0, NULL, 0);
regfree( &re );
#ifdef NEW_LOGGING
LDAP_LOG( ACL, DETAIL2, "regex_matches: string: %s\n", str, 0, 0 );
LDAP_LOG( ACL, DETAIL2, "regex_matches: rc: %d %s\n",
rc, rc ? "matches" : "no matches", 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"=> regex_matches: string: %s\n", str, 0, 0 );
Debug( LDAP_DEBUG_TRACE,
"=> regex_matches: rc: %d %s\n",
rc, !rc ? "matches" : "no matches", 0 );
#endif
return( !rc );
}