Unix SMB/CIFS implementation.
simple kerberos5 routines for active directory
Copyright (C) Andrew Tridgell 2001
- Copyright (C) Luke Howard 2002
+ Copyright (C) Luke Howard 2002-2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#ifdef HAVE_KRB5
+#ifdef HAVE_KRB5_KEYBLOCK_KEYVALUE
+#define KRB5_KEY_TYPE(k) ((k)->keytype)
+#define KRB5_KEY_LENGTH(k) ((k)->keyvalue.length)
+#define KRB5_KEY_DATA(k) ((k)->keyvalue.data)
+#else
+#define KRB5_KEY_TYPE(k) ((k)->enctype)
+#define KRB5_KEY_LENGTH(k) ((k)->length)
+#define KRB5_KEY_DATA(k) ((k)->contents)
+#endif /* HAVE_KRB5_KEYBLOCK_KEYVALUE */
+
#ifndef HAVE_KRB5_SET_REAL_TIME
/*
* This function is not in the Heimdal mainline.
{
pkaddr->addrtype = ADDRTYPE_INET;
pkaddr->length = sizeof(((struct sockaddr_in *)paddr)->sin_addr);
- pkaddr->contents = (char *)&(((struct sockaddr_in *)paddr)->sin_addr);
+ pkaddr->contents = (krb5_octet *)&(((struct sockaddr_in *)paddr)->sin_addr);
}
#else
__ERROR__XX__UNKNOWN_ADDRTYPE
#endif
+#if defined(HAVE_KRB5_PRINCIPAL2SALT) && defined(HAVE_KRB5_USE_ENCTYPE) && defined(HAVE_KRB5_STRING_TO_KEY)
+ int create_kerberos_key_from_string(krb5_context context,
+ krb5_principal host_princ,
+ krb5_data *password,
+ krb5_keyblock *key,
+ krb5_enctype enctype)
+{
+ int ret;
+ krb5_data salt;
+ krb5_encrypt_block eblock;
+
+ ret = krb5_principal2salt(context, host_princ, &salt);
+ if (ret) {
+ DEBUG(1,("krb5_principal2salt failed (%s)\n", error_message(ret)));
+ return ret;
+ }
+ krb5_use_enctype(context, &eblock, enctype);
+ ret = krb5_string_to_key(context, &eblock, key, password, &salt);
+ SAFE_FREE(salt.data);
+ return ret;
+}
+#elif defined(HAVE_KRB5_GET_PW_SALT) && defined(HAVE_KRB5_STRING_TO_KEY_SALT)
+ int create_kerberos_key_from_string(krb5_context context,
+ krb5_principal host_princ,
+ krb5_data *password,
+ krb5_keyblock *key,
+ krb5_enctype enctype)
+{
+ int ret;
+ krb5_salt salt;
+
+ ret = krb5_get_pw_salt(context, host_princ, &salt);
+ if (ret) {
+ DEBUG(1,("krb5_get_pw_salt failed (%s)\n", error_message(ret)));
+ return ret;
+ }
+ return krb5_string_to_key_salt(context, enctype, password->data,
+ salt, key);
+}
+#else
+ __ERROR_XX_UNKNOWN_CREATE_KEY_FUNCTIONS
+#endif
+
+#if defined(HAVE_KRB5_GET_PERMITTED_ENCTYPES)
+krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
+ krb5_enctype **enctypes)
+{
+ return krb5_get_permitted_enctypes(context, enctypes);
+}
+#elif defined(HAVE_KRB5_GET_DEFAULT_IN_TKT_ETYPES)
+krb5_error_code get_kerberos_allowed_etypes(krb5_context context,
+ krb5_enctype **enctypes)
+{
+ return krb5_get_default_in_tkt_etypes(context, enctypes);
+}
+#else
+#error UNKNOWN_GET_ENCTYPES_FUNCTIONS
+#endif
+
+ void free_kerberos_etypes(krb5_context context,
+ krb5_enctype *enctypes)
+{
+#if defined(HAVE_KRB5_FREE_KTYPES)
+ krb5_free_ktypes(context, enctypes);
+ return;
+#else
+ SAFE_FREE(enctypes);
+ return;
+#endif
+}
+
+#if defined(HAVE_KRB5_AUTH_CON_SETKEY) && !defined(HAVE_KRB5_AUTH_CON_SETUSERUSERKEY)
+ krb5_error_code krb5_auth_con_setuseruserkey(krb5_context context,
+ krb5_auth_context auth_context,
+ krb5_keyblock *keyblock)
+{
+ return krb5_auth_con_setkey(context, auth_context, keyblock);
+}
+#endif
+
+ void get_auth_data_from_tkt(DATA_BLOB *auth_data, krb5_ticket *tkt)
+{
+#if defined(HAVE_KRB5_TKT_ENC_PART2)
+ if (tkt->enc_part2)
+ *auth_data = data_blob(tkt->enc_part2->authorization_data[0]->contents,
+ tkt->enc_part2->authorization_data[0]->length);
+#else
+ if (tkt->ticket.authorization_data && tkt->ticket.authorization_data->len)
+ *auth_data = data_blob(tkt->ticket.authorization_data->val->ad_data.data,
+ tkt->ticket.authorization_data->val->ad_data.length);
+#endif
+}
+
+ krb5_const_principal get_principal_from_tkt(krb5_ticket *tkt)
+{
+#if defined(HAVE_KRB5_TKT_ENC_PART2)
+ return tkt->enc_part2->client;
+#else
+ return tkt->client;
+#endif
+}
+
+#if !defined(HAVE_KRB5_LOCATE_KDC)
+ krb5_error_code krb5_locate_kdc(krb5_context ctx, const krb5_data *realm, struct sockaddr **addr_pp, int *naddrs, int get_masters)
+{
+ krb5_krbhst_handle hnd;
+ krb5_krbhst_info *hinfo;
+ krb5_error_code rc;
+ int num_kdcs, i;
+ struct sockaddr *sa;
+
+ *addr_pp = NULL;
+ *naddrs = 0;
+
+ rc = krb5_krbhst_init(ctx, realm->data, KRB5_KRBHST_KDC, &hnd);
+ if (rc) {
+ DEBUG(0, ("krb5_locate_kdc: krb5_krbhst_init failed (%s)\n", error_message(rc)));
+ return rc;
+ }
+
+ for ( num_kdcs = 0; (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); num_kdcs++)
+ ;
+
+ krb5_krbhst_reset(ctx, hnd);
+
+ if (!num_kdcs) {
+ DEBUG(0, ("krb5_locate_kdc: zero kdcs found !\n"));
+ krb5_krbhst_free(ctx, hnd);
+ return -1;
+ }
+
+ sa = malloc( sizeof(struct sockaddr) * num_kdcs );
+ if (!sa) {
+ DEBUG(0, ("krb5_locate_kdc: malloc failed\n"));
+ krb5_krbhst_free(ctx, hnd);
+ naddrs = 0;
+ return -1;
+ }
+
+ memset(*addr_pp, '\0', sizeof(struct sockaddr) * num_kdcs );
+
+ for (i = 0; i < num_kdcs && (rc = krb5_krbhst_next(ctx, hnd, &hinfo) == 0); i++) {
+ if (hinfo->ai->ai_family == AF_INET)
+ memcpy(&sa[i], hinfo->ai->ai_addr, sizeof(struct sockaddr));
+ }
+
+ krb5_krbhst_free(ctx, hnd);
+
+ *naddrs = num_kdcs;
+ *addr_pp = sa;
+ return 0;
+}
+#endif
+
/*
we can't use krb5_mk_req because w2k wants the service to be in a particular format
*/
-static krb5_error_code krb5_mk_req2(krb5_context context,
- krb5_auth_context *auth_context,
- const krb5_flags ap_req_options,
- const char *principal,
- krb5_ccache ccache,
- krb5_data *outbuf)
+static krb5_error_code ads_krb5_mk_req(krb5_context context,
+ krb5_auth_context *auth_context,
+ const krb5_flags ap_req_options,
+ const char *principal,
+ krb5_ccache ccache,
+ krb5_data *outbuf)
{
krb5_error_code retval;
krb5_principal server;
}
/* obtain ticket & session key */
- memset((char *)&creds, 0, sizeof(creds));
+ ZERO_STRUCT(creds);
if ((retval = krb5_copy_principal(context, server, &creds.server))) {
DEBUG(1,("krb5_copy_principal failed (%s)\n",
error_message(retval)));
/*
get a kerberos5 ticket for the given service
*/
-DATA_BLOB krb5_get_ticket(const char *principal, time_t time_offset)
+DATA_BLOB cli_krb5_get_ticket(const char *principal, time_t time_offset, DATA_BLOB *session_key_krb5)
{
krb5_error_code retval;
krb5_data packet;
DATA_BLOB ret;
krb5_enctype enc_types[] = {
#ifdef ENCTYPE_ARCFOUR_HMAC
- ENCTYPE_ARCFOUR_HMAC,
-#endif
- ENCTYPE_DES_CBC_MD5,
- ENCTYPE_NULL};
-
+ ENCTYPE_ARCFOUR_HMAC,
+#endif
+ ENCTYPE_DES_CBC_MD5,
+ ENCTYPE_DES_CBC_CRC,
+ ENCTYPE_NULL};
+
retval = krb5_init_context(&context);
if (retval) {
DEBUG(1,("krb5_init_context failed (%s)\n",
goto failed;
}
- if ((retval = krb5_mk_req2(context,
- &auth_context,
- 0,
- principal,
- ccdef, &packet))) {
+ if ((retval = ads_krb5_mk_req(context,
+ &auth_context,
+ AP_OPTS_USE_SUBKEY,
+ principal,
+ ccdef, &packet))) {
goto failed;
}
+ get_krb5_smb_session_key(context, auth_context, session_key_krb5, False);
+
ret = data_blob(packet.data, packet.length);
/* Hmm, heimdal dooesn't have this - what's the correct call? */
/* krb5_free_data_contents(context, &packet); */
return data_blob(NULL, 0);
}
+ BOOL get_krb5_smb_session_key(krb5_context context, krb5_auth_context auth_context, DATA_BLOB *session_key, BOOL remote)
+ {
+ krb5_keyblock *skey;
+ krb5_error_code err;
+ BOOL ret = False;
+
+ memset(session_key, 0, 16);
+
+ if (remote)
+ err = krb5_auth_con_getremotesubkey(context, auth_context, &skey);
+ else
+ err = krb5_auth_con_getlocalsubkey(context, auth_context, &skey);
+ if (err == 0 && skey != NULL) {
+ DEBUG(10, ("Got KRB5 session key of length %d\n", KRB5_KEY_LENGTH(skey)));
+ *session_key = data_blob(KRB5_KEY_DATA(skey), KRB5_KEY_LENGTH(skey));
+ dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
+
+ ret = True;
+
+ krb5_free_keyblock(context, skey);
+ } else {
+ DEBUG(10, ("KRB5 error getting session key %d\n", err));
+ }
+
+ return ret;
+ }
+
+
+#if defined(HAVE_KRB5_PRINCIPAL_GET_COMP_STRING) && !defined(HAVE_KRB5_PRINC_COMPONENT)
+ const krb5_data *krb5_princ_component(krb5_context context, krb5_principal principal, int i )
+{
+ static krb5_data kdata;
+
+ kdata.data = krb5_principal_get_comp_string(context, principal, i);
+ kdata.length = strlen(kdata.data);
+ return &kdata;
+}
+#endif
#else /* HAVE_KRB5 */
/* this saves a few linking headaches */
- DATA_BLOB krb5_get_ticket(const char *principal, time_t time_offset)
+DATA_BLOB cli_krb5_get_ticket(const char *principal, time_t time_offset, DATA_BLOB *session_key_krb5)
{
DEBUG(0,("NO KERBEROS SUPPORT\n"));
return data_blob(NULL, 0);
}
+
#endif
git.samba.org / abartlet / samba.git / .git / blobdiff