#include "smbd/service_task.h"
#include "lib/events/events.h"
#include "lib/socket/socket.h"
+#include "lib/tsocket/tsocket.h"
#include "system/network.h"
-#include "lib/util/dlinklist.h"
+#include "../lib/util/dlinklist.h"
#include "lib/ldb/include/ldb.h"
#include "auth/gensec/gensec.h"
#include "auth/credentials/credentials.h"
#include "heimdal_build/kpasswdd-glue.h"
#endif
-/* hold information about one kdc socket */
-struct kpasswd_socket {
- struct socket_context *sock;
- struct kdc_server *kdc;
- struct fd_event *fde;
-
- /* a queue of outgoing replies that have been deferred */
- struct kdc_reply *send_queue;
-};
-
/* Return true if there is a valid error packet formed in the error_blob */
static bool kpasswdd_make_error_reply(struct kdc_server *kdc,
TALLOC_CTX *mem_ctx,
DATA_BLOB *error_blob)
{
char *error_string_utf8;
- ssize_t len;
+ size_t len;
DEBUG(result_code ? 3 : 10, ("kpasswdd: %s\n", error_string));
- len = push_utf8_talloc(mem_ctx, lp_iconv_convenience(kdc->task->lp_ctx), &error_string_utf8, error_string);
- if (len == -1) {
+ if (!push_utf8_talloc(mem_ctx, &error_string_utf8, error_string, &len)) {
return false;
}
static bool kpasswd_make_pwchange_reply(struct kdc_server *kdc,
TALLOC_CTX *mem_ctx,
NTSTATUS status,
- enum samr_RejectReason reject_reason,
+ enum samPwdChangeReason reject_reason,
struct samr_DomInfo1 *dominfo,
DATA_BLOB *error_blob)
{
if (dominfo && NT_STATUS_EQUAL(status, NT_STATUS_PASSWORD_RESTRICTION)) {
const char *reject_string;
switch (reject_reason) {
- case SAMR_REJECT_TOO_SHORT:
+ case SAM_PWD_CHANGE_PASSWORD_TOO_SHORT:
reject_string = talloc_asprintf(mem_ctx, "Password too short, password must be at least %d characters long",
dominfo->min_password_length);
break;
- case SAMR_REJECT_COMPLEXITY:
+ case SAM_PWD_CHANGE_NOT_COMPLEX:
reject_string = "Password does not meet complexity requirements";
break;
- case SAMR_REJECT_IN_HISTORY:
+ case SAM_PWD_CHANGE_PWD_IN_HISTORY:
reject_string = "Password is already in password history";
break;
- case SAMR_REJECT_OTHER:
default:
reject_string = talloc_asprintf(mem_ctx, "Password must be at least %d characters long, and cannot match any of your %d previous passwords",
dominfo->min_password_length, dominfo->password_history_length);
static bool kpasswdd_change_password(struct kdc_server *kdc,
TALLOC_CTX *mem_ctx,
struct auth_session_info *session_info,
- const char *password,
+ const DATA_BLOB *password,
DATA_BLOB *reply)
{
NTSTATUS status;
- enum samr_RejectReason reject_reason;
+ enum samPwdChangeReason reject_reason;
struct samr_DomInfo1 *dominfo;
struct ldb_context *samdb;
- samdb = samdb_connect(mem_ctx, kdc->task->event_ctx, kdc->task->lp_ctx, system_session(mem_ctx, kdc->task->lp_ctx));
+ samdb = samdb_connect(mem_ctx, kdc->task->event_ctx, kdc->task->lp_ctx, system_session(kdc->task->lp_ctx));
if (!samdb) {
return kpasswdd_make_error_reply(kdc, mem_ctx,
KRB5_KPASSWD_HARDERROR,
DATA_BLOB *reply)
{
struct auth_session_info *session_info;
+ size_t pw_len;
+
if (!NT_STATUS_IS_OK(gensec_session_info(gensec_security,
&session_info))) {
return kpasswdd_make_error_reply(kdc, mem_ctx,
switch (version) {
case KRB5_KPASSWD_VERS_CHANGEPW:
{
- char *password = talloc_strndup(mem_ctx, (const char *)input->data, input->length);
- if (!password) {
+ DATA_BLOB password;
+ if (!convert_string_talloc_convenience(mem_ctx, lp_iconv_convenience(kdc->task->lp_ctx),
+ CH_UTF8, CH_UTF16,
+ (const char *)input->data,
+ input->length,
+ (void **)&password.data, &pw_len, false)) {
return false;
}
+ password.length = pw_len;
+
return kpasswdd_change_password(kdc, mem_ctx, session_info,
- password, reply);
+ &password, reply);
break;
}
case KRB5_KPASSWD_VERS_SETPW:
{
NTSTATUS status;
- enum samr_RejectReason reject_reason = SAMR_REJECT_OTHER;
+ enum samPwdChangeReason reject_reason = SAM_PWD_CHANGE_NO_ERROR;
struct samr_DomInfo1 *dominfo = NULL;
struct ldb_context *samdb;
struct ldb_message *msg;
krb5_context context = kdc->smb_krb5_context->krb5_context;
ChangePasswdDataMS chpw;
- char *password;
+ DATA_BLOB password;
krb5_principal principal;
char *set_password_on_princ;
reply);
}
- password = talloc_strndup(mem_ctx,
- (const char *)chpw.newpasswd.data,
- chpw.newpasswd.length);
- if (!password) {
+ if (!convert_string_talloc_convenience(mem_ctx, lp_iconv_convenience(kdc->task->lp_ctx),
+ CH_UTF8, CH_UTF16,
+ (const char *)chpw.newpasswd.data,
+ chpw.newpasswd.length,
+ (void **)&password.data, &pw_len, false)) {
free_ChangePasswdDataMS(&chpw);
return false;
}
+
+ password.length = pw_len;
+
if ((chpw.targname && !chpw.targrealm)
|| (!chpw.targname && chpw.targrealm)) {
return kpasswdd_make_error_reply(kdc, mem_ctx,
} else {
free_ChangePasswdDataMS(&chpw);
return kpasswdd_change_password(kdc, mem_ctx, session_info,
- password, reply);
+ &password, reply);
}
free_ChangePasswdDataMS(&chpw);
status = NT_STATUS_TRANSACTION_ABORTED;
return kpasswd_make_pwchange_reply(kdc, mem_ctx,
status,
- SAMR_REJECT_OTHER,
+ SAM_PWD_CHANGE_NO_ERROR,
NULL,
reply);
}
ldb_transaction_cancel(samdb);
return kpasswd_make_pwchange_reply(kdc, mem_ctx,
status,
- SAMR_REJECT_OTHER,
+ SAM_PWD_CHANGE_NO_ERROR,
NULL,
reply);
}
/* Admin password set */
status = samdb_set_password(samdb, mem_ctx,
set_password_on_dn, NULL,
- msg, password, NULL, NULL,
+ msg, &password, NULL, NULL,
false, /* this is not a user password change */
&reject_reason, &dominfo);
}
TALLOC_CTX *mem_ctx,
DATA_BLOB *input,
DATA_BLOB *reply,
- struct socket_address *peer_addr,
- struct socket_address *my_addr,
+ struct tsocket_address *peer_addr,
+ struct tsocket_address *my_addr,
int datagram_reply)
{
bool ret;
DATA_BLOB kpasswd_req, kpasswd_rep;
struct cli_credentials *server_credentials;
struct gensec_security *gensec_security;
+ struct sockaddr_storage ss;
+ ssize_t socklen;
+ struct socket_address *socket_address;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
-
+
+ char *keytab_name;
+
if (!tmp_ctx) {
return false;
}
ap_req = data_blob_const(&input->data[header_len], ap_req_len);
krb_priv_req = data_blob_const(&input->data[header_len + ap_req_len], krb_priv_len);
- nt_status = gensec_server_start(tmp_ctx, kdc->task->event_ctx, kdc->task->lp_ctx, kdc->task->msg_ctx, &gensec_security);
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(tmp_ctx);
- return false;
- }
-
server_credentials = cli_credentials_init(tmp_ctx);
if (!server_credentials) {
DEBUG(1, ("Failed to init server credentials\n"));
* we already have, rather than a new context */
cli_credentials_set_krb5_context(server_credentials, kdc->smb_krb5_context);
cli_credentials_set_conf(server_credentials, kdc->task->lp_ctx);
- nt_status = cli_credentials_set_stored_principal(server_credentials, kdc->task->event_ctx, kdc->task->lp_ctx, "kadmin/changepw");
- if (!NT_STATUS_IS_OK(nt_status)) {
+
+ keytab_name = talloc_asprintf(server_credentials, "HDB:samba4&%p", kdc->hdb_samba4_context);
+
+ cli_credentials_set_username(server_credentials, "kadmin/changepw", CRED_SPECIFIED);
+ ret = cli_credentials_set_keytab_name(server_credentials, kdc->task->event_ctx, kdc->task->lp_ctx, keytab_name, CRED_SPECIFIED);
+ if (ret != 0) {
ret = kpasswdd_make_unauth_error_reply(kdc, mem_ctx,
KRB5_KPASSWD_HARDERROR,
talloc_asprintf(mem_ctx,
return ret;
}
- nt_status = gensec_set_credentials(gensec_security, server_credentials);
+ /* We don't strictly need to call this wrapper, and could call
+ * gensec_server_start directly, as we have no need for NTLM
+ * and we have a PAC, but this ensures that the wrapper can be
+ * safely extended for other helpful things in future */
+ nt_status = samba_server_gensec_start(tmp_ctx, kdc->task->event_ctx,
+ kdc->task->msg_ctx,
+ kdc->task->lp_ctx,
+ server_credentials,
+ "kpasswd",
+ &gensec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return false;
/* The kerberos PRIV packets include these addresses. MIT
* clients check that they are present */
+#if 0
+ /* Skip this part for now, it breaks with a NetAPP filer and
+ * in any case where the client address is behind NAT. If
+ * older MIT clients need this, we might have to insert more
+ * complex code */
+
nt_status = gensec_set_peer_addr(gensec_security, peer_addr);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return false;
}
- nt_status = gensec_set_my_addr(gensec_security, my_addr);
+#endif
+
+ socklen = tsocket_address_bsd_sockaddr(my_addr, (struct sockaddr *) &ss,
+ sizeof(struct sockaddr_storage));
+ if (socklen < 0) {
+ talloc_free(tmp_ctx);
+ return false;
+ }
+ socket_address = socket_address_from_sockaddr(tmp_ctx,
+ (struct sockaddr *) &ss, socklen);
+ if (socket_address == NULL) {
+ talloc_free(tmp_ctx);
+ return false;
+ }
+
+ nt_status = gensec_set_my_addr(gensec_security, socket_address);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return false;