openldap/servers/slapd/aclparse.c

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/* aclparse.c - routines to parse and check acl's */
/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/ctype.h>
#include <ac/regex.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/unistd.h>
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#include "slap.h"
static void split(char *line, int splitchar, char **left, char **right);
static void access_append(Access **l, Access *a);
static void acl_usage(void) LDAP_GCCATTR((noreturn));
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#ifdef LDAP_DEBUG
static void print_acl(Backend *be, AccessControl *a);
static void print_access(Access *b);
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#endif
static int
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regtest(const char *fname, int lineno, char *pat) {
int e;
regex_t re;
char buf[512];
unsigned size;
char *sp;
char *dp;
int flag;
sp = pat;
dp = buf;
size = 0;
buf[0] = '\0';
for (size = 0, flag = 0; (size < sizeof(buf)) && *sp; sp++) {
if (flag) {
if (*sp == '$'|| (*sp >= '0' && *sp <= '9')) {
*dp++ = *sp;
size++;
}
flag = 0;
} else {
if (*sp == '$') {
flag = 1;
} else {
*dp++ = *sp;
size++;
}
}
}
*dp = '\0';
if ( size >= (sizeof(buf)-1) ) {
fprintf( stderr,
"%s: line %d: regular expression \"%s\" too large\n",
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fname, lineno, pat );
acl_usage();
}
if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
char error[512];
regerror(e, &re, error, sizeof(error));
fprintf( stderr,
"%s: line %d: regular expression \"%s\" bad because of %s\n",
fname, lineno, pat, error );
acl_usage();
return(0);
}
regfree(&re);
return(1);
}
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void
parse_acl(
Backend *be,
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const char *fname,
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int lineno,
int argc,
char **argv
)
{
int i;
char *left, *right, *style;
AccessControl *a;
Access *b;
int rc;
const char *text;
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a = NULL;
for ( i = 1; i < argc; i++ ) {
/* to clause - select which entries are protected */
if ( strcasecmp( argv[i], "to" ) == 0 ) {
if ( a != NULL ) {
fprintf( stderr,
"%s: line %d: only one to clause allowed in access line\n",
fname, lineno );
acl_usage();
}
a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
a->acl_filter = NULL;
a->acl_dn_pat = NULL;
a->acl_attrs = NULL;
a->acl_access = NULL;
a->acl_next = NULL;
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for ( ++i; i < argc; i++ ) {
if ( strcasecmp( argv[i], "by" ) == 0 ) {
i--;
break;
}
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if ( strcasecmp( argv[i], "*" ) == 0 ) {
if( a->acl_dn_pat != NULL ) {
fprintf( stderr,
"%s: line %d: dn pattern"
" already specified in to clause.\n",
fname, lineno );
acl_usage();
}
a->acl_dn_pat = ch_strdup( "*" );
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continue;
}
split( argv[i], '=', &left, &right );
split( left, '.', &left, &style );
if ( right == NULL || *right == '\0' ) {
fprintf( stderr,
"%s: line %d: missing \"=\" in (or value after) \"%s\" in to clause\n",
fname, lineno, left );
acl_usage();
}
if ( strcasecmp( left, "dn" ) == 0 ) {
if( a->acl_dn_pat != NULL ) {
fprintf( stderr,
"%s: line %d: dn pattern"
" already specified in to clause.\n",
fname, lineno );
acl_usage();
}
if ( style == NULL || *style == '\0'
|| strcasecmp( style, "regex" ) == 0 )
{
a->acl_dn_style = ACL_STYLE_REGEX;
if ( strcmp(right, "*") == 0
|| strcmp(right, ".*") == 0
|| strcmp(right, ".*$") == 0
|| strcmp(right, "^.*") == 0
|| strcmp(right, "^.*$$") == 0
|| strcmp(right, ".*$$") == 0
|| strcmp(right, "^.*$$") == 0 )
{
a->acl_dn_pat = ch_strdup( "*" );
} else {
a->acl_dn_pat = ch_strdup( right );
}
} else if ( strcasecmp( style, "base" ) == 0 ) {
a->acl_dn_style = ACL_STYLE_BASE;
a->acl_dn_pat = ch_strdup( right );
} else if ( strcasecmp( style, "one" ) == 0 ) {
a->acl_dn_style = ACL_STYLE_ONE;
a->acl_dn_pat = ch_strdup( right );
} else if ( strcasecmp( style, "subtree" ) == 0 ) {
a->acl_dn_style = ACL_STYLE_SUBTREE;
a->acl_dn_pat = ch_strdup( right );
} else if ( strcasecmp( style, "children" ) == 0 ) {
a->acl_dn_style = ACL_STYLE_CHILDREN;
a->acl_dn_pat = ch_strdup( right );
} else {
fprintf( stderr,
"%s: line %d: unknown dn style \"%s\" in to clause\n",
fname, lineno, style );
acl_usage();
}
continue;
}
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if ( strcasecmp( left, "filter" ) == 0 ) {
if ( (a->acl_filter = str2filter(
right )) == NULL ) {
fprintf( stderr,
"%s: line %d: bad filter \"%s\" in to clause\n",
fname, lineno, right );
acl_usage();
}
} else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
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char **alist;
alist = str2charray( right, "," );
charray_merge( &a->acl_attrs, alist );
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charray_free( alist );
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} else {
fprintf( stderr,
"%s: line %d: expecting <what> got \"%s\"\n",
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fname, lineno, left );
acl_usage();
}
}
if ( a->acl_dn_pat != NULL && strcmp(a->acl_dn_pat, "*") == 0) {
free( a->acl_dn_pat );
a->acl_dn_pat = NULL;
}
if( a->acl_dn_pat != NULL ) {
if ( a->acl_dn_style != ACL_STYLE_REGEX )
{
dn_normalize(a->acl_dn_pat);
} else {
int e = regcomp( &a->acl_dn_re, a->acl_dn_pat,
REG_EXTENDED | REG_ICASE );
if ( e ) {
char buf[512];
regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
fprintf( stderr,
"%s: line %d: regular expression \"%s\" bad because of %s\n",
fname, lineno, right, buf );
acl_usage();
}
}
}
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/* by clause - select who has what access to entries */
} else if ( strcasecmp( argv[i], "by" ) == 0 ) {
if ( a == NULL ) {
fprintf( stderr,
"%s: line %d: to clause required before by clause in access line\n",
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fname, lineno );
acl_usage();
}
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/*
* by clause consists of <who> and <access>
*/
b = (Access *) ch_calloc( 1, sizeof(Access) );
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ACL_INVALIDATE( b->a_mask );
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if ( ++i == argc ) {
fprintf( stderr,
"%s: line %d: premature eol: expecting <who>\n",
fname, lineno );
acl_usage();
}
/* get <who> */
for ( ; i < argc; i++ ) {
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char *pat;
slap_style_t sty = ACL_STYLE_REGEX;
split( argv[i], '=', &left, &right );
split( left, '.', &left, &style );
if ( style == NULL || *style == '\0'
|| strcasecmp( style, "regex" ) == 0 )
{
sty = ACL_STYLE_REGEX;
} else if ( strcasecmp( style, "exact" ) == 0 ) {
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sty = ACL_STYLE_EXACT;
} else if ( strcasecmp( style, "base" ) == 0 ) {
sty = ACL_STYLE_BASE;
} else if ( strcasecmp( style, "one" ) == 0 ) {
sty = ACL_STYLE_ONE;
} else if ( strcasecmp( style, "subtree" ) == 0 ) {
sty = ACL_STYLE_SUBTREE;
} else if ( strcasecmp( style, "children" ) == 0 ) {
sty = ACL_STYLE_CHILDREN;
} else {
fprintf( stderr,
"%s: line %d: unknown style \"%s\" in by clause\n",
fname, lineno, style );
acl_usage();
}
if ( strcasecmp( argv[i], "*" ) == 0 ) {
pat = ch_strdup( "*" );
} else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
pat = ch_strdup( "anonymous" );
} else if ( strcasecmp( argv[i], "self" ) == 0 ) {
pat = ch_strdup( "self" );
} else if ( strcasecmp( argv[i], "users" ) == 0 ) {
pat = ch_strdup( "users" );
} else if ( strcasecmp( left, "dn" ) == 0 ) {
if ( sty == ACL_STYLE_REGEX ) {
b->a_dn_style = ACL_STYLE_REGEX;
if( right == NULL ) {
/* no '=' */
pat = ch_strdup( "users" );
} else if (*right == '\0' ) {
/* dn="" */
pat = ch_strdup( "anonymous" );
} else if ( strcmp( right, "*" ) == 0 ) {
/* dn=* */
/* any or users? users for now */
pat = ch_strdup( "users" );
} else if ( strcmp( right, ".+" ) == 0
|| strcmp( right, "^.+" ) == 0
|| strcmp( right, ".+$" ) == 0
|| strcmp( right, "^.+$" ) == 0
|| strcmp( right, ".+$$" ) == 0
|| strcmp( right, "^.+$$" ) == 0 )
{
pat = ch_strdup( "users" );
} else if ( strcmp( right, ".*" ) == 0
|| strcmp( right, "^.*" ) == 0
|| strcmp( right, ".*$" ) == 0
|| strcmp( right, "^.*$" ) == 0
|| strcmp( right, ".*$$" ) == 0
|| strcmp( right, "^.*$$" ) == 0 )
{
pat = ch_strdup( "*" );
} else {
regtest(fname, lineno, right);
pat = ch_strdup( right );
}
} else if ( right == NULL || *right == '\0' ) {
fprintf( stderr,
"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
fname, lineno, left );
acl_usage();
} else {
pat = ch_strdup( right );
}
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} else {
pat = NULL;
}
if( pat != NULL ) {
if( b->a_dn_pat != NULL ) {
fprintf( stderr,
"%s: line %d: dn pattern already specified.\n",
fname, lineno );
acl_usage();
}
b->a_dn_pat = pat;
b->a_dn_style = sty;
if ( sty != ACL_STYLE_REGEX )
dn_normalize(pat);
continue;
}
if ( strcasecmp( left, "dnattr" ) == 0 ) {
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if( b->a_dn_at != NULL ) {
fprintf( stderr,
"%s: line %d: dnattr already specified.\n",
fname, lineno );
acl_usage();
}
rc = slap_str2ad( right, &b->a_dn_at, &text );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr,
"%s: line %d: dnattr \"%s\": %s\n",
fname, lineno, right, text );
acl_usage();
}
if( !is_at_syntax( b->a_dn_at->ad_type,
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SLAPD_DN_SYNTAX ) )
{
fprintf( stderr,
"%s: line %d: dnattr \"%s\": "
"inappropriate syntax: %s\n",
fname, lineno, right,
b->a_dn_at->ad_type->sat_syntax_oid );
acl_usage();
}
continue;
}
if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
fprintf( stderr,
"%s: line %d: inappropriate style \"%s\" in by clause\n",
fname, lineno, style );
acl_usage();
}
if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
char *name = NULL;
char *value = NULL;
if( b->a_group_pat != NULL ) {
fprintf( stderr,
"%s: line %d: group pattern already specified.\n",
fname, lineno );
acl_usage();
}
/* format of string is "group/objectClassValue/groupAttrName" */
if ((value = strchr(left, '/')) != NULL) {
*value++ = '\0';
if (*value
&& (name = strchr(value, '/')) != NULL)
{
*name++ = '\0';
}
}
b->a_group_style = sty;
if (sty == ACL_STYLE_REGEX) {
regtest(fname, lineno, right);
b->a_group_pat = ch_strdup( right );
} else {
b->a_group_pat = ch_strdup( right );
dn_normalize(b->a_group_pat);
}
if (value && *value) {
b->a_group_oc = oc_find( value );
*--value = '/';
if( b->a_group_oc == NULL ) {
fprintf( stderr,
"%s: line %d: group objectclass "
"\"%s\" unknown\n",
fname, lineno, value );
acl_usage();
}
} else {
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b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
if( b->a_group_oc == NULL ) {
fprintf( stderr,
"%s: line %d: group default objectclass "
"\"%s\" unknown\n",
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fname, lineno, SLAPD_GROUP_CLASS );
acl_usage();
}
}
if( is_object_subclass( b->a_group_oc,
slap_schema.si_oc_referral ) )
{
fprintf( stderr,
"%s: line %d: group objectclass \"%s\" "
"is subclass of referral\n",
fname, lineno, value );
acl_usage();
}
if( is_object_subclass( b->a_group_oc,
slap_schema.si_oc_alias ) )
{
fprintf( stderr,
"%s: line %d: group objectclass \"%s\" "
"is subclass of alias\n",
fname, lineno, value );
acl_usage();
}
if (name && *name) {
rc = slap_str2ad( name, &b->a_group_at, &text );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr,
"%s: line %d: group \"%s\": %s\n",
fname, lineno, right, text );
acl_usage();
}
*--name = '/';
} else {
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rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr,
"%s: line %d: group \"%s\": %s\n",
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fname, lineno, SLAPD_GROUP_ATTR, text );
acl_usage();
}
}
if( !is_at_syntax( b->a_group_at->ad_type,
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SLAPD_DN_SYNTAX ) )
{
fprintf( stderr,
"%s: line %d: group \"%s\": inappropriate syntax: %s\n",
fname, lineno, right,
b->a_group_at->ad_type->sat_syntax_oid );
acl_usage();
}
{
int rc;
struct berval val;
struct berval *vals[2];
val.bv_val = b->a_group_oc->soc_oid;
val.bv_len = strlen(val.bv_val);
vals[0] = &val;
vals[1] = NULL;
rc = oc_check_allowed( b->a_group_at->ad_type, vals );
if( rc != 0 ) {
fprintf( stderr,
"%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
fname, lineno,
b->a_group_at->ad_cname->bv_val,
b->a_group_oc->soc_oid );
acl_usage();
}
}
continue;
}
if ( strcasecmp( left, "peername" ) == 0 ) {
if( b->a_peername_pat != NULL ) {
fprintf( stderr,
"%s: line %d: peername pattern already specified.\n",
fname, lineno );
acl_usage();
}
b->a_peername_style = sty;
if (sty == ACL_STYLE_REGEX) {
regtest(fname, lineno, right);
}
b->a_peername_pat = ch_strdup( right );
continue;
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}
if ( strcasecmp( left, "sockname" ) == 0 ) {
if( b->a_sockname_pat != NULL ) {
fprintf( stderr,
"%s: line %d: sockname pattern already specified.\n",
fname, lineno );
acl_usage();
}
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b->a_sockname_style = sty;
if (sty == ACL_STYLE_REGEX) {
regtest(fname, lineno, right);
}
b->a_sockname_pat = ch_strdup( right );
continue;
}
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if ( strcasecmp( left, "domain" ) == 0 ) {
if( b->a_domain_pat != NULL ) {
fprintf( stderr,
"%s: line %d: domain pattern already specified.\n",
fname, lineno );
acl_usage();
}
b->a_domain_style = sty;
if (sty == ACL_STYLE_REGEX) {
regtest(fname, lineno, right);
}
b->a_domain_pat = ch_strdup( right );
continue;
}
if ( strcasecmp( left, "sockurl" ) == 0 ) {
if( b->a_sockurl_pat != NULL ) {
fprintf( stderr,
"%s: line %d: sockurl pattern already specified.\n",
fname, lineno );
acl_usage();
}
b->a_sockurl_style = sty;
if (sty == ACL_STYLE_REGEX) {
regtest(fname, lineno, right);
}
b->a_sockurl_pat = ch_strdup( right );
continue;
}
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if ( strcasecmp( left, "set" ) == 0 ) {
if( b->a_set_pat != NULL ) {
fprintf( stderr,
"%s: line %d: set attribute already specified.\n",
fname, lineno );
acl_usage();
}
if ( right == NULL || *right == '\0' ) {
fprintf( stderr,
"%s: line %d: no set is defined\n",
fname, lineno );
acl_usage();
}
b->a_set_style = sty;
b->a_set_pat = ch_strdup(right);
continue;
}
#ifdef SLAPD_ACI_ENABLED
if ( strcasecmp( left, "aci" ) == 0 ) {
if( b->a_aci_at != NULL ) {
fprintf( stderr,
"%s: line %d: aci attribute already specified.\n",
fname, lineno );
acl_usage();
}
if ( right != NULL && *right != '\0' ) {
rc = slap_str2ad( right, &b->a_aci_at, &text );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr,
"%s: line %d: aci \"%s\": %s\n",
fname, lineno, right, text );
acl_usage();
}
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} else {
rc = slap_str2ad( SLAPD_ACI_ATTR, &b->a_aci_at, &text );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr,
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"%s: line %d: aci \"%s\": %s\n",
fname, lineno, SLAPD_ACI_ATTR, text );
acl_usage();
}
}
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if( !is_at_syntax( b->a_aci_at->ad_type,
SLAPD_ACI_SYNTAX) )
{
fprintf( stderr,
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"%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
fname, lineno, right,
b->a_aci_at->ad_type->sat_syntax_oid );
acl_usage();
}
continue;
}
#endif /* SLAPD_ACI_ENABLED */
if( right != NULL ) {
/* unsplit */
right[-1] = '=';
}
break;
}
if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) {
/* out of arguments or plain stop */
ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
b->a_type = ACL_STOP;
access_append( &a->acl_access, b );
continue;
}
if( strcasecmp( left, "continue" ) == 0 ) {
/* plain continue */
ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
b->a_type = ACL_CONTINUE;
access_append( &a->acl_access, b );
continue;
}
if( strcasecmp( left, "break" ) == 0 ) {
/* plain continue */
ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
b->a_type = ACL_BREAK;
access_append( &a->acl_access, b );
continue;
}
if ( strcasecmp( left, "by" ) == 0 ) {
/* we've gone too far */
--i;
ACL_PRIV_ASSIGN(b->a_mask, ACL_PRIV_ADDITIVE);
b->a_type = ACL_STOP;
access_append( &a->acl_access, b );
continue;
}
/* get <access> */
if( strncasecmp( left, "self", 4 ) == 0 ) {
b->a_dn_self = 1;
ACL_PRIV_ASSIGN( b->a_mask, str2accessmask( &left[4] ) );
} else {
ACL_PRIV_ASSIGN( b->a_mask, str2accessmask( left ) );
}
if( ACL_IS_INVALID( b->a_mask ) ) {
fprintf( stderr,
"%s: line %d: expecting <access> got \"%s\"\n",
fname, lineno, left );
acl_usage();
}
b->a_type = ACL_STOP;
if( ++i == argc ) {
/* out of arguments or plain stop */
access_append( &a->acl_access, b );
continue;
}
if( strcasecmp( argv[i], "continue" ) == 0 ) {
/* plain continue */
b->a_type = ACL_CONTINUE;
} else if( strcasecmp( argv[i], "break" ) == 0 ) {
/* plain continue */
b->a_type = ACL_BREAK;
} else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
/* gone to far */
i--;
}
access_append( &a->acl_access, b );
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} else {
fprintf( stderr,
"%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
fname, lineno, argv[i] );
acl_usage();
}
}
/* if we have no real access clause, complain and do nothing */
if ( a == NULL ) {
fprintf( stderr,
"%s: line %d: warning: no access clause(s) specified in access line\n",
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fname, lineno );
} else {
#ifdef LDAP_DEBUG
if (ldap_debug & LDAP_DEBUG_ACL)
print_acl(be, a);
#endif
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if ( a->acl_access == NULL ) {
fprintf( stderr,
"%s: line %d: warning: no by clause(s) specified in access line\n",
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fname, lineno );
}
if ( be != NULL ) {
acl_append( &be->be_acl, a );
} else {
acl_append( &global_acl, a );
}
}
}
char *
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accessmask2str( slap_access_mask_t mask, char *buf )
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{
int none=1;
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assert( buf != NULL );
if ( ACL_IS_INVALID( mask ) ) {
return "invalid";
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}
buf[0] = '\0';
if ( ACL_IS_LEVEL( mask ) ) {
if ( ACL_LVL_IS_NONE(mask) ) {
strcat( buf, "none" );
} else if ( ACL_LVL_IS_AUTH(mask) ) {
strcat( buf, "auth" );
} else if ( ACL_LVL_IS_COMPARE(mask) ) {
strcat( buf, "compare" );
} else if ( ACL_LVL_IS_SEARCH(mask) ) {
strcat( buf, "search" );
} else if ( ACL_LVL_IS_READ(mask) ) {
strcat( buf, "read" );
} else if ( ACL_LVL_IS_WRITE(mask) ) {
strcat( buf, "write" );
} else {
strcat( buf, "unknown" );
}
strcat(buf, " (");
}
if( ACL_IS_ADDITIVE( mask ) ) {
strcat( buf, "+" );
} else if( ACL_IS_SUBTRACTIVE( mask ) ) {
strcat( buf, "-" );
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} else {
strcat( buf, "=" );
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}
if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
none = 0;
strcat( buf, "w" );
}
if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
none = 0;
strcat( buf, "r" );
}
if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
none = 0;
strcat( buf, "s" );
}
if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
none = 0;
strcat( buf, "c" );
}
if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
none = 0;
strcat( buf, "x" );
}
if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
none = 0;
strcat( buf, "n" );
}
if ( none ) {
strcat( buf, "0" );
}
if ( ACL_IS_LEVEL( mask ) ) {
strcat(buf, ")");
}
return buf;
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}
slap_access_mask_t
str2accessmask( const char *str )
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{
slap_access_mask_t mask;
if( !ASCII_ALPHA(str[0]) ) {
int i;
if ( str[0] == '=' ) {
ACL_INIT(mask);
} else if( str[0] == '+' ) {
ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
} else if( str[0] == '-' ) {
ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
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} else {
ACL_INVALIDATE(mask);
return mask;
}
for( i=1; str[i] != '\0'; i++ ) {
if( TOLOWER(str[i]) == 'w' ) {
ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
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} else if( TOLOWER(str[i]) == 'r' ) {
ACL_PRIV_SET(mask, ACL_PRIV_READ);
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} else if( TOLOWER(str[i]) == 's' ) {
ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
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} else if( TOLOWER(str[i]) == 'c' ) {
ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
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} else if( TOLOWER(str[i]) == 'x' ) {
ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
} else if( str[i] != '0' ) {
ACL_INVALIDATE(mask);
return mask;
}
}
return mask;
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}
if ( strcasecmp( str, "none" ) == 0 ) {
ACL_LVL_ASSIGN_NONE(mask);
} else if ( strcasecmp( str, "auth" ) == 0 ) {
ACL_LVL_ASSIGN_AUTH(mask);
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} else if ( strcasecmp( str, "compare" ) == 0 ) {
ACL_LVL_ASSIGN_COMPARE(mask);
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} else if ( strcasecmp( str, "search" ) == 0 ) {
ACL_LVL_ASSIGN_SEARCH(mask);
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} else if ( strcasecmp( str, "read" ) == 0 ) {
ACL_LVL_ASSIGN_READ(mask);
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} else if ( strcasecmp( str, "write" ) == 0 ) {
ACL_LVL_ASSIGN_WRITE(mask);
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} else {
ACL_INVALIDATE( mask );
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}
return mask;
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}
static void
acl_usage( void )
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{
fprintf( stderr, "\n"
"<access clause> ::= access to <what> "
"[ by <who> <access> <control> ]+ \n"
"<what> ::= * | [dn=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
"<attrlist> ::= <attr> | <attr> , <attrlist>\n"
"<attr> ::= <attrname> | entry | children\n"
"<who> ::= [ * | anonymous | users | self | dn=<regex> ]\n"
"\t[dnattr=<attrname>]\n"
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"\t[group[/<objectclass>[/<attrname>]]=<regex>]\n"
"\t[peername=<regex>] [sockname=<regex>]\n"
"\t[domain=<regex>] [sockurl=<regex>]\n"
#ifdef SLAPD_ACI_ENABLED
"\t[aci=<attrname>]\n"
#endif
"<access> ::= [self]{<level>|<priv>}\n"
"<level> ::= none | auth | compare | search | read | write\n"
"<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
"<control> ::= [ stop | continue | break ]\n"
);
exit( EXIT_FAILURE );
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}
static void
split(
char *line,
int splitchar,
char **left,
char **right
)
{
*left = line;
if ( (*right = strchr( line, splitchar )) != NULL ) {
*((*right)++) = '\0';
}
}
static void
access_append( Access **l, Access *a )
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{
for ( ; *l != NULL; l = &(*l)->a_next )
; /* NULL */
*l = a;
}
void
acl_append( AccessControl **l, AccessControl *a )
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{
for ( ; *l != NULL; l = &(*l)->acl_next )
; /* NULL */
*l = a;
}
char *
access2str( slap_access_t access )
{
if ( access == ACL_NONE ) {
return "none";
} else if ( access == ACL_AUTH ) {
return "auth";
} else if ( access == ACL_COMPARE ) {
return "compare";
} else if ( access == ACL_SEARCH ) {
return "search";
} else if ( access == ACL_READ ) {
return "read";
} else if ( access == ACL_WRITE ) {
return "write";
}
return "unknown";
}
slap_access_t
str2access( const char *str )
{
if ( strcasecmp( str, "none" ) == 0 ) {
return ACL_NONE;
} else if ( strcasecmp( str, "auth" ) == 0 ) {
return ACL_AUTH;
} else if ( strcasecmp( str, "compare" ) == 0 ) {
return ACL_COMPARE;
} else if ( strcasecmp( str, "search" ) == 0 ) {
return ACL_SEARCH;
} else if ( strcasecmp( str, "read" ) == 0 ) {
return ACL_READ;
} else if ( strcasecmp( str, "write" ) == 0 ) {
return ACL_WRITE;
}
return( ACL_INVALID_ACCESS );
}
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#ifdef LDAP_DEBUG
static char *style_strings[5] = {
"regex",
"base",
"one",
"subtree",
"children"
};
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static void
print_access( Access *b )
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{
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char maskbuf[ACCESSMASK_MAXLEN];
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fprintf( stderr, "\tby" );
if ( b->a_dn_pat != NULL ) {
if( strcmp(b->a_dn_pat, "*") == 0
|| strcmp(b->a_dn_pat, "users") == 0
|| strcmp(b->a_dn_pat, "anonymous") == 0
|| strcmp(b->a_dn_pat, "self") == 0 )
{
fprintf( stderr, " %s", b->a_dn_pat );
} else {
fprintf( stderr, " dn.%s=%s", style_strings[b->a_dn_style], b->a_dn_pat );
}
}
if ( b->a_dn_at != NULL ) {
fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname->bv_val );
}
if ( b->a_group_pat != NULL ) {
fprintf( stderr, " group=%s", b->a_group_pat );
if ( b->a_group_oc ) {
fprintf( stderr, " objectClass: %s",
b->a_group_oc->soc_oclass.oc_oid );
if ( b->a_group_at ) {
fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname->bv_val );
}
}
}
if ( b->a_peername_pat != NULL ) {
fprintf( stderr, " peername=%s", b->a_peername_pat );
}
if ( b->a_sockname_pat != NULL ) {
fprintf( stderr, " sockname=%s", b->a_sockname_pat );
}
if ( b->a_domain_pat != NULL ) {
fprintf( stderr, " domain=%s", b->a_domain_pat );
}
if ( b->a_sockurl_pat != NULL ) {
fprintf( stderr, " sockurl=%s", b->a_sockurl_pat );
}
#ifdef SLAPD_ACI_ENABLED
if ( b->a_aci_at != NULL ) {
fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname->bv_val );
}
#endif
fprintf( stderr, " %s%s",
b->a_dn_self ? "self" : "",
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accessmask2str( b->a_mask, maskbuf ) );
if( b->a_type == ACL_BREAK ) {
fprintf( stderr, " break" );
} else if( b->a_type == ACL_CONTINUE ) {
fprintf( stderr, " continue" );
} else if( b->a_type != ACL_STOP ) {
fprintf( stderr, " unknown-control" );
}
fprintf( stderr, "\n" );
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}
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static void
print_acl( Backend *be, AccessControl *a )
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{
int to = 0;
Access *b;
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fprintf( stderr, "%s ACL: access to",
be == NULL ? "Global" : "Backend" );
if ( a->acl_dn_pat != NULL ) {
to++;
fprintf( stderr, " dn.%s=%s\n",
style_strings[a->acl_dn_style], a->acl_dn_pat );
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}
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if ( a->acl_filter != NULL ) {
to++;
fprintf( stderr, " filter=" );
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filter_print( a->acl_filter );
fprintf( stderr, "\n" );
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}
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if ( a->acl_attrs != NULL ) {
int i, first = 1;
to++;
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fprintf( stderr, " attrs=" );
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for ( i = 0; a->acl_attrs[i] != NULL; i++ ) {
if ( ! first ) {
fprintf( stderr, "," );
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}
fprintf( stderr, a->acl_attrs[i] );
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first = 0;
}
fprintf( stderr, "\n" );
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}
if( !to ) {
fprintf( stderr, " *\n" );
}
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for ( b = a->acl_access; b != NULL; b = b->a_next ) {
print_access( b );
}
fprintf( stderr, "\n" );
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}
#endif /* LDAP_DEBUG */