/* acl.c - routines to parse and check acl's */
+#include "portable.h"
#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include "regex.h"
-#include "slap.h"
-#include "portable.h"
-extern Filter *str2filter();
-extern char *re_comp();
-extern struct acl *global_acl;
-extern char **str2charray();
-extern char *dn_upcase();
+#include <ac/ctype.h>
+#include <ac/regex.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/unistd.h>
+
+#include "slap.h"
-static void split();
-static void acl_append();
-static void access_append();
-static void acl_usage();
+static void split(char *line, int splitchar, char **left, char **right);
+static void acl_append(AccessControl **l, AccessControl *a);
+static void access_append(Access **l, Access *a);
+static void acl_usage(void);
#ifdef LDAP_DEBUG
-static void print_acl();
-static void print_access();
+static void print_acl(AccessControl *a);
+static void print_access(Access *b);
#endif
+static int
+regtest(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",
+ fname, lineno, pat, 0 );
+ 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);
+}
+
void
parse_acl(
Backend *be,
)
{
int i;
- char *e, *left, *right;
- struct acl *a;
- struct access *b;
+ char *left, *right;
+ AccessControl *a;
+ Access *b;
a = NULL;
for ( i = 1; i < argc; i++ ) {
fname, lineno );
acl_usage();
}
- a = (struct acl *) ch_calloc( 1, sizeof(struct acl) );
+ a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
for ( ++i; i < argc; i++ ) {
if ( strcasecmp( argv[i], "by" ) == 0 ) {
i--;
}
if ( strcasecmp( argv[i], "*" ) == 0 ) {
- a->acl_dnpat = strdup( ".*" );
+ a->acl_dn_pat = ch_strdup( ".*" );
continue;
}
fname, lineno, right );
acl_usage();
}
+
} else if ( strcasecmp( left, "dn" ) == 0 ) {
- if ( (e = re_comp( right )) != NULL ) {
+ int e;
+
+ if ((e = regcomp(&a->acl_dn_re, right,
+ REG_EXTENDED|REG_ICASE))) {
+ 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, e );
+ "%s: line %d: regular expression \"%s\" bad because of %s\n",
+ fname, lineno, right, buf );
acl_usage();
+
+ } else {
+ a->acl_dn_pat = ch_strdup( right );
}
- a->acl_dnpat = dn_upcase( strdup(
- right ) );
- } else if ( strncasecmp( left, "attr", 4 )
- == 0 ) {
+
+ } else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
char **alist;
alist = str2charray( right, "," );
charray_merge( &a->acl_attrs, alist );
- free( alist );
+ charray_free( alist );
+
} else {
fprintf( stderr,
- "%s: line %d: expecting <what> got \"%s\"\n",
+ "%s: line %d: expecting <what> got \"%s\"\n",
fname, lineno, left );
acl_usage();
}
} 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",
+ "%s: line %d: to clause required before by clause in access line\n",
fname, lineno );
acl_usage();
}
* by clause consists of <who> and <access>
*/
- b = (struct access *) ch_calloc( 1,
- sizeof(struct access) );
+ b = (Access *) ch_calloc( 1, sizeof(Access) );
if ( ++i == argc ) {
fprintf( stderr,
}
/* get <who> */
- split( argv[i], '=', &left, &right );
- if ( strcasecmp( argv[i], "*" ) == 0 ) {
- b->a_dnpat = strdup( ".*" );
- } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
- b->a_dnpat = strdup( "self" );
- } else if ( strcasecmp( left, "dn" ) == 0 ) {
- if ( (e = re_comp( right )) != NULL ) {
- fprintf( stderr,
- "%s: line %d: regular expression \"%s\" bad: %s\n",
- fname, lineno, right, e );
- acl_usage();
+ for ( ; i < argc; i++ ) {
+ char *pat;
+ split( argv[i], '=', &left, &right );
+
+ 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( left, "dn" ) == 0 ) {
+ regtest(fname, lineno, right);
+ pat = ch_strdup( right );
+ } else {
+ pat = NULL;
}
- b->a_dnpat = dn_upcase( strdup( right ) );
- } else if ( strcasecmp( left, "dnattr" )
- == 0 ) {
- b->a_dnattr = strdup( right );
- } else if ( strcasecmp( left, "domain" )
- == 0 ) {
- char *s;
-
- if ( (e = re_comp( right )) != NULL ) {
- fprintf( stderr,
- "%s: line %d: regular expression \"%s\" bad: %s\n",
- fname, lineno, right, e );
- acl_usage();
+
+ 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;
+ continue;
}
- b->a_domainpat = strdup( right );
- /* normalize the domain */
- for ( s = b->a_domainpat; *s; s++ ) {
- *s = TOLOWER( *s );
+
+ if ( strcasecmp( left, "dnattr" ) == 0 ) {
+ if( b->a_dn_pat != NULL ) {
+ fprintf( stderr,
+ "%s: line %d: dnaddr already specified.\n",
+ fname, lineno );
+ acl_usage();
+ }
+
+ b->a_dn_at = ch_strdup( right );
+ continue;
}
- } else if ( strcasecmp( left, "addr" ) == 0 ) {
- if ( (e = re_comp( right )) != NULL ) {
- fprintf( stderr,
- "%s: line %d: regular expression \"%s\" bad: %s\n",
- fname, lineno, right, e );
- 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 && *value
+ && (name = strchr(value, '/')) != NULL)
+ {
+ *name++ = '\0';
+ }
+ }
+
+ regtest(fname, lineno, right);
+ b->a_group_pat = ch_strdup( right );
+
+ if (value && *value) {
+ b->a_group_oc = ch_strdup(value);
+ *--value = '/';
+ } else {
+ b->a_group_oc = ch_strdup("groupOfNames");
+
+ if (name && *name) {
+ b->a_group_at = ch_strdup(name);
+ *--name = '/';
+
+ } else {
+ b->a_group_at = ch_strdup("member");
+ }
+ }
+ continue;
}
- b->a_addrpat = strdup( right );
- } else {
- fprintf( stderr,
- "%s: line %d: expecting <who> got \"%s\"\n",
- fname, lineno, left );
- acl_usage();
- }
- if ( ++i == argc ) {
- fprintf( stderr,
- "%s: line %d: premature eol: expecting <access>\n",
- fname, lineno );
- acl_usage();
- }
+ 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();
+ }
- /* get <access> */
- split( argv[i], '=', &left, &right );
- if ( (b->a_access = str2access( left )) == -1 ) {
- fprintf( stderr,
- "%s: line %d: expecting <access> got \"%s\"\n",
- fname, lineno, left );
- acl_usage();
- }
- access_append( &a->acl_access, b );
+ regtest(fname, lineno, right);
+ b->a_peername_pat = ch_strdup( right );
+ continue;
+ }
+
+ 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();
+ }
+
+ regtest(fname, lineno, right);
+ b->a_sockname_pat = ch_strdup( right );
+ continue;
+ }
+
+ 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();
+ }
+
+ 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();
+ }
+
+ regtest(fname, lineno, right);
+ b->a_sockurl_pat = ch_strdup( right );
+ continue;
+ }
+ /* get <access> */
+ if ( ACL_IS_INVALID(ACL_SET(b->a_access, str2access( left ))) ) {
+ fprintf( stderr,
+ "%s: line %d: expecting <access> got \"%s\"\n",
+ fname, lineno, left );
+ acl_usage();
+ }
+ access_append( &a->acl_access, b );
+ break;
+ }
} else {
fprintf( stderr,
"%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
/* 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",
+ "%s: line %d: warning: no access clause(s) specified in access line\n",
fname, lineno );
} else {
+
+#ifdef LDAP_DEBUG
+ if (ldap_debug & LDAP_DEBUG_ACL)
+ print_acl(a);
+#endif
if ( a->acl_access == NULL ) {
fprintf( stderr,
- "%s: line %d: warning: no by clause(s) specified in access line\n",
+ "%s: line %d: warning: no by clause(s) specified in access line\n",
fname, lineno );
}
{
static char buf[12];
- if ( access & ACL_SELF ) {
+ if ( ACL_IS_SELF( access ) ) {
strcpy( buf, "self" );
} else {
buf[0] = '\0';
}
- if ( access & ACL_NONE ) {
+ if ( ACL_IS_NONE(access) ) {
strcat( buf, "none" );
- } else if ( access & ACL_COMPARE ) {
+ } else if ( ACL_IS_AUTH(access) ) {
+ strcat( buf, "auth" );
+ } else if ( ACL_IS_COMPARE(access) ) {
strcat( buf, "compare" );
- } else if ( access & ACL_SEARCH ) {
+ } else if ( ACL_IS_SEARCH(access) ) {
strcat( buf, "search" );
- } else if ( access & ACL_READ ) {
+ } else if ( ACL_IS_READ(access) ) {
strcat( buf, "read" );
- } else if ( access & ACL_WRITE ) {
+ } else if ( ACL_IS_WRITE(access) ) {
strcat( buf, "write" );
+
} else {
strcat( buf, "unknown" );
}
{
int access;
- access = 0;
+ ACL_CLR(access);
+
if ( strncasecmp( str, "self", 4 ) == 0 ) {
- access |= ACL_SELF;
+ ACL_SET_SELF(access);
str += 4;
}
if ( strcasecmp( str, "none" ) == 0 ) {
- access |= ACL_NONE;
+ ACL_SET_NONE(access);
+ } else if ( strcasecmp( str, "auth" ) == 0 ) {
+ ACL_SET_AUTH(access);
} else if ( strcasecmp( str, "compare" ) == 0 ) {
- access |= ACL_COMPARE;
+ ACL_SET_COMPARE(access);
} else if ( strcasecmp( str, "search" ) == 0 ) {
- access |= ACL_SEARCH;
+ ACL_SET_SEARCH(access);
} else if ( strcasecmp( str, "read" ) == 0 ) {
- access |= ACL_READ;
+ ACL_SET_READ(access);
} else if ( strcasecmp( str, "write" ) == 0 ) {
- access |= ACL_WRITE;
+ ACL_SET_WRITE(access);
} else {
- access = -1;
+ ACL_SET_INVALID(access);
}
return( access );
}
static void
-acl_usage()
+acl_usage( void )
{
- fprintf( stderr, "\n<access clause> ::= access to <what> [ by <who> <access> ]+ \n" );
- fprintf( stderr, "<what> ::= * | [dn=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n" );
- fprintf( stderr, "<attrlist> ::= <attr> | <attr> , <attrlist>\n" );
- fprintf( stderr, "<attr> ::= <attrname> | entry | children\n" );
- fprintf( stderr, "<who> ::= * | self | dn=<regex> | addr=<regex> |\n\tdomain=<regex> | dnattr=<dnattrname>\n" );
- fprintf( stderr, "<access> ::= [self]{none | compare | search | read | write }\n" );
+ fprintf( stderr, "\n"
+ "<access clause> ::= access to <what> [ by <who> <access> ]+ \n"
+ "<what> ::= * | [dn=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
+ "<attrlist> ::= <attr> | <attr> , <attrlist>\n"
+ "<attr> ::= <attrname> | entry | children\n"
+ "<who> ::= [ * | anonymous | self | dn=<regex> ]\n"
+ "\t[dnattr=<attrname>]\n"
+ "\t[group[/<objectclass>[/<attrname>]]=<regex>]\n"
+ "\t[peername=<regex>] [sockname=<regex>]\n"
+ "\t[domain=<regex>] [sockurl=<regex>]\n"
+ "<access> ::= [self]{none|auth|compare|search|read|write}\n"
+ );
exit( 1 );
}
}
static void
-access_append( struct access **l, struct access *a )
+access_append( Access **l, Access *a )
{
for ( ; *l != NULL; l = &(*l)->a_next )
; /* NULL */
}
static void
-acl_append( struct acl **l, struct acl *a )
+acl_append( AccessControl **l, AccessControl *a )
{
for ( ; *l != NULL; l = &(*l)->acl_next )
; /* NULL */
#ifdef LDAP_DEBUG
static void
-print_access( struct access *b )
+print_access( Access *b )
{
- printf( "\tby" );
- if ( b->a_dnpat != NULL ) {
- printf( " dn=%s", b->a_dnpat );
- } else if ( b->a_addrpat != NULL ) {
- printf( " addr=%s", b->a_addrpat );
- } else if ( b->a_domainpat != NULL ) {
- printf( " domain=%s", b->a_domainpat );
- } else if ( b->a_dnattr != NULL ) {
- printf( " dnattr=%s", b->a_dnattr );
+ fprintf( stderr, "\tby" );
+
+ if ( b->a_dn_pat != NULL ) {
+ if( strcmp(b->a_dn_pat, "anonymous") == 0 ) {
+ fprintf( stderr, " anonymous" );
+
+ } else if( strcmp(b->a_dn_pat, "self") == 0 ) {
+ fprintf( stderr, " self" );
+
+ } else {
+ fprintf( stderr, " dn=%s", b->a_dn_pat );
+ }
}
- printf( " %s\n", access2str( b->a_access ) );
+
+ if ( b->a_dn_at != NULL ) {
+ fprintf( stderr, " dnattr=%s", b->a_dn_at );
+ }
+
+ 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 );
+
+ if ( b->a_group_at ) {
+ fprintf( stderr, " attributeType: %s", b->a_group_at );
+ }
+ }
+ }
+
+ 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 );
+ }
+
+ fprintf( stderr, "\n" );
}
static void
-print_acl( struct acl *a )
+print_acl( AccessControl *a )
{
int i;
- struct access *b;
+ Access *b;
if ( a == NULL ) {
- printf( "NULL\n" );
+ fprintf( stderr, "NULL\n" );
}
- printf( "access to" );
+ fprintf( stderr, "ACL: access to" );
if ( a->acl_filter != NULL ) {
- printf( " filter=" );
+ fprintf( stderr," filter=" );
filter_print( a->acl_filter );
}
- if ( a->acl_dnpat != NULL ) {
- printf( " dn=" );
- printf( a->acl_dnpat );
+ if ( a->acl_dn_pat != NULL ) {
+ fprintf( stderr, " dn=" );
+ fprintf( stderr, a->acl_dn_pat );
}
if ( a->acl_attrs != NULL ) {
int first = 1;
- printf( " attrs=" );
+ fprintf( stderr, "\n attrs=" );
for ( i = 0; a->acl_attrs[i] != NULL; i++ ) {
if ( ! first ) {
- printf( "," );
+ fprintf( stderr, "," );
}
- printf( a->acl_attrs[i] );
+ fprintf( stderr, a->acl_attrs[i] );
first = 0;
}
}
- printf( "\n" );
+ fprintf( stderr, "\n" );
for ( b = a->acl_access; b != NULL; b = b->a_next ) {
print_access( b );
}
+ fprintf( stderr, "\n" );
}
-#endif
+#endif /* LDAP_DEBUG */