#include "portable.h"
+#include <stdlib.h>
+
#include <ac/string.h>
#include <ac/unistd.h>
#include "lutil_md5.h"
#include "lutil_sha1.h"
#include "lutil.h"
-extern char *crypt (const char *, const char *);
/*
+ * Return 0 if creds are good.
*/
int
{
if (cred == NULL || passwd == NULL) {
- return 0;
+ return -1;
}
- if (strncasecmp(passwd, "{CRYPT}", sizeof("{CRYPT}") - 1) == 0 ) {
- const char *p = passwd + (sizeof("{CRYPT}") - 1);
-
- return( strcmp(p, crypt(cred, p)) != 0 );
-
- } else if (strncasecmp(passwd, "{MD5}", sizeof("{MD5}") - 1) == 0 ) {
- ldap_MD5_CTX MD5context;
- unsigned char MD5digest[20];
- char base64digest[29]; /* ceiling(sizeof(input)/3) * 4 + 1 */
+ if (strncasecmp(passwd, "{MD5}", sizeof("{MD5}") - 1) == 0 ) {
+ lutil_MD5_CTX MD5context;
+ unsigned char MD5digest[16];
+ char base64digest[25]; /* ceiling(sizeof(input)/3) * 4 + 1 */
const char *p = passwd + (sizeof("{MD5}") - 1);
- ldap_MD5Init(&MD5context);
- ldap_MD5Update(&MD5context,
- cred, strlen(cred));
- ldap_MD5Final(MD5digest, &MD5context);
+ lutil_MD5Init(&MD5context);
+ lutil_MD5Update(&MD5context,
+ (const unsigned char *)cred, strlen(cred));
+ lutil_MD5Final(MD5digest, &MD5context);
- if ( b64_ntop(MD5digest, sizeof(MD5digest),
+ if ( lutil_b64_ntop(MD5digest, sizeof(MD5digest),
base64digest, sizeof(base64digest)) < 0)
{
return ( 1 );
}
- return (strcmp(p, base64digest) != 0);
+ return( strcmp(p, base64digest) );
} else if (strncasecmp(passwd, "{SHA}",sizeof("{SHA}") - 1) == 0 ) {
- ldap_SHA1_CTX SHA1context;
+ lutil_SHA1_CTX SHA1context;
unsigned char SHA1digest[20];
char base64digest[29]; /* ceiling(sizeof(input)/3) * 4 + 1 */
const char *p = passwd + (sizeof("{SHA}") - 1);
- ldap_SHA1Init(&SHA1context);
- ldap_SHA1Update(&SHA1context,
- (unsigned char *) cred, strlen(cred));
- ldap_SHA1Final(SHA1digest, &SHA1context);
+ lutil_SHA1Init(&SHA1context);
+ lutil_SHA1Update(&SHA1context,
+ (const unsigned char *) cred, strlen(cred));
+ lutil_SHA1Final(SHA1digest, &SHA1context);
- if (b64_ntop(SHA1digest, sizeof(SHA1digest),
+ if (lutil_b64_ntop(SHA1digest, sizeof(SHA1digest),
base64digest, sizeof(base64digest)) < 0)
{
- return ( 0 );
+ return ( 1 );
}
- return( strcmp(p, base64digest) != 0 );
+ return( strcmp(p, base64digest) );
+
+ } else if (strncasecmp(passwd, "{SSHA}", sizeof("{SSHA}") - 1) == 0) {
+ lutil_SHA1_CTX SHA1context;
+ unsigned char SHA1digest[20];
+ const char *p = passwd + (sizeof("{SSHA}") - 1);
+ int pw_len = strlen(p);
+ int rc;
+ unsigned char *orig_pass = NULL;
+
+ /* base64 un-encode password */
+ orig_pass = (unsigned char *)malloc((size_t)(pw_len * 0.75 + 1));
+ if ((rc = lutil_b64_pton(p, orig_pass, pw_len)) < 0)
+ {
+ free(orig_pass);
+ return ( 1 );
+ }
+
+ /* hash credentials with salt */
+ lutil_SHA1Init(&SHA1context);
+ lutil_SHA1Update(&SHA1context,
+ (const unsigned char *) cred, strlen(cred));
+ lutil_SHA1Update(&SHA1context,
+ (const unsigned char *) orig_pass + sizeof(SHA1digest),
+ rc - sizeof(SHA1digest));
+ lutil_SHA1Final(SHA1digest, &SHA1context);
+
+ /* compare */
+ rc = strncmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
+ free(orig_pass);
+ return(rc);
+
+ } else if (strncasecmp(passwd, "{SMD5}", sizeof("{SMD5}") - 1) == 0) {
+ lutil_MD5_CTX MD5context;
+ unsigned char MD5digest[16];
+ const char *p = passwd + (sizeof("{SMD5}") - 1);
+ int pw_len = strlen(p);
+ int rc;
+ unsigned char *orig_pass = NULL;
+
+ /* base64 un-encode password */
+ orig_pass = (unsigned char *)malloc((size_t)(pw_len * 0.75 + 1));
+ if ((rc = lutil_b64_pton(p, orig_pass, pw_len)) < 0)
+ {
+ free(orig_pass);
+ return ( 1 );
+ }
+
+ /* hash credentials with salt */
+ lutil_MD5Init(&MD5context);
+ lutil_MD5Update(&MD5context,
+ (const unsigned char *) cred, strlen(cred));
+ lutil_MD5Update(&MD5context,
+ (const unsigned char *) orig_pass + sizeof(MD5digest),
+ rc - sizeof(MD5digest));
+ lutil_MD5Final(MD5digest, &MD5context);
+
+ /* compare */
+ rc = strncmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
+ free(orig_pass);
+ return ( rc );
+
+#ifdef SLAPD_CRYPT
+ } else if (strncasecmp(passwd, "{CRYPT}", sizeof("{CRYPT}") - 1) == 0 ) {
+ const char *p = passwd + (sizeof("{CRYPT}") - 1);
+
+ return( strcmp(p, crypt(cred, p)) );
+
+#endif
}
- return( strcmp(passwd, cred) != 0 );
+#ifdef SLAPD_CLEARTEXT
+ return( strcmp(passwd, cred) );
+#else
+ return( 1 );
+#endif
+
}