*/
#include "includes.h"
-#include "../libds/common/flags.h"
-#include "auth/auth.h"
-#include "kdc/kdc.h"
-#include "param/param.h"
+#include "kdc/kdc-glue.h"
#include "kdc/pac-glue.h"
/* Given the right private pointer from hdb_samba4, get a PAC from the attached ldb messages */
static krb5_error_code samba_wdc_reget_pac(void *priv, krb5_context context,
const krb5_principal client_principal,
struct hdb_entry_ex *client,
- struct hdb_entry_ex *server, krb5_pac *pac)
+ struct hdb_entry_ex *server,
+ struct hdb_entry_ex *krbtgt,
+ krb5_pac *pac)
{
struct samba_kdc_entry *p = talloc_get_type(server->ctx, struct samba_kdc_entry);
TALLOC_CTX *mem_ctx = talloc_named(p, 0, "samba_kdc_reget_pac context");
return ENOMEM;
}
- pac_blob = talloc_zero(mem_ctx, DATA_BLOB);
- if (!pac_blob) {
- talloc_free(mem_ctx);
- return ENOMEM;
- }
-
/* The user account may be set not to want the PAC */
if (!samba_princ_needs_pac(server)) {
talloc_free(mem_ctx);
return EINVAL;
}
- nt_status = samba_kdc_update_pac_blob(mem_ctx, context,
- p->kdc_db_ctx->ic_ctx,
- pac, pac_blob);
- if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(0, ("Building PAC failed: %s\n",
- nt_errstr(nt_status)));
- talloc_free(mem_ctx);
- return EINVAL;
- }
+ /* If the krbtgt was generated by an RODC, and we are not that
+ * RODC, then we need to regenerate the PAC - we can't trust
+ * it */
+ if (samba_krbtgt_was_untrusted_rodc(krbtgt)) {
+ if (client == NULL) {
+ return KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN;
+ }
+ nt_status = samba_kdc_get_pac_blob(mem_ctx, client, &pac_blob);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(mem_ctx);
+ return EINVAL;
+ }
+ } else {
+ pac_blob = talloc_zero(mem_ctx, DATA_BLOB);
+ if (!pac_blob) {
+ talloc_free(mem_ctx);
+ return ENOMEM;
+ }
- /* We now completly regenerate this pac */
+ nt_status = samba_kdc_update_pac_blob(mem_ctx, context,
+ pac, pac_blob);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(0, ("Building PAC failed: %s\n",
+ nt_errstr(nt_status)));
+ talloc_free(mem_ctx);
+ return EINVAL;
+ }
+ }
+ /* We now completely regenerate this pac */
krb5_pac_free(context, *pac);
ret = samba_make_krb5_pac(context, pac_blob, pac);
return ret;
}
-/* Given an hdb entry (and in particular it's private member), consult
- * the account_ok routine in auth/auth_sam.c for consistancy */
+static char *get_netbios_name(TALLOC_CTX *mem_ctx, HostAddresses *addrs)
+{
+ char *nb_name = NULL;
+ size_t len;
+ unsigned int i;
+
+ for (i = 0; addrs && i < addrs->len; i++) {
+ if (addrs->val[i].addr_type != KRB5_ADDRESS_NETBIOS) {
+ continue;
+ }
+ len = MIN(addrs->val[i].address.length, 15);
+ nb_name = talloc_strndup(mem_ctx,
+ addrs->val[i].address.data, len);
+ if (nb_name) {
+ break;
+ }
+ }
+
+ if (nb_name == NULL) {
+ return NULL;
+ }
+
+ /* Strip space padding */
+ i = strlen(nb_name) - 1;
+ while (i > 0 && nb_name[i] == ' ') {
+ nb_name[i] = '\0';
+ }
+
+ return nb_name;
+}
+
+static krb5_data fill_krb5_data(void *data, size_t length)
+{
+ krb5_data kdata;
+
+ kdata.data = data;
+ kdata.length = length;
+
+ return kdata;
+}
+
static krb5_error_code samba_wdc_check_client_access(void *priv,
krb5_context context,
krb5_kdc_configuration *config,
KDC_REQ *req,
krb5_data *e_data)
{
- krb5_error_code ret;
- NTSTATUS nt_status;
- TALLOC_CTX *tmp_ctx;
- struct samba_kdc_entry *p;
- char *workstation = NULL;
- HostAddresses *addresses = req->req_body.addresses;
- int i;
+ struct samba_kdc_entry *kdc_entry;
bool password_change;
+ char *workstation;
+ NTSTATUS nt_status;
- tmp_ctx = talloc_new(client_ex->ctx);
- p = talloc_get_type(client_ex->ctx, struct samba_kdc_entry);
+ kdc_entry = talloc_get_type(client_ex->ctx, struct samba_kdc_entry);
+ password_change = (server_ex && server_ex->entry.flags.change_pw);
+ workstation = get_netbios_name((TALLOC_CTX *)client_ex->ctx,
+ req->req_body.addresses);
- if (!tmp_ctx) {
- return ENOMEM;
- }
+ nt_status = samba_kdc_check_client_access(kdc_entry,
+ client_name,
+ workstation,
+ password_change);
- if (addresses) {
- for (i=0; i < addresses->len; i++) {
- if (addresses->val->addr_type == KRB5_ADDRESS_NETBIOS) {
- workstation = talloc_strndup(tmp_ctx, addresses->val->address.data, MIN(addresses->val->address.length, 15));
- if (workstation) {
- break;
- }
- }
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_MEMORY)) {
+ return ENOMEM;
}
- }
- /* Strip space padding */
- if (workstation) {
- i = MIN(strlen(workstation), 15);
- for (; i > 0 && workstation[i - 1] == ' '; i--) {
- workstation[i - 1] = '\0';
- }
- }
+ if (e_data) {
+ DATA_BLOB data;
- password_change = (server_ex && server_ex->entry.flags.change_pw);
+ samba_kdc_build_edata_reply(nt_status, &data);
+ *e_data = fill_krb5_data(data.data, data.length);
+ }
- /* we allow all kinds of trusts here */
- nt_status = authsam_account_ok(tmp_ctx,
- p->kdc_db_ctx->samdb,
- MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT,
- p->realm_dn,
- p->msg,
- workstation,
- client_name, true, password_change);
-
- if (NT_STATUS_IS_OK(nt_status)) {
- /* Now do the standard Heimdal check */
- ret = kdc_check_flags(context, config,
- client_ex, client_name,
- server_ex, server_name,
- req->msg_type == krb_as_req);
- } else {
- if (NT_STATUS_EQUAL(nt_status, NT_STATUS_PASSWORD_MUST_CHANGE))
- ret = KRB5KDC_ERR_KEY_EXPIRED;
- else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_PASSWORD_EXPIRED))
- ret = KRB5KDC_ERR_KEY_EXPIRED;
- else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCOUNT_EXPIRED))
- ret = KRB5KDC_ERR_CLIENT_REVOKED;
- else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCOUNT_DISABLED))
- ret = KRB5KDC_ERR_CLIENT_REVOKED;
- else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_LOGON_HOURS))
- ret = KRB5KDC_ERR_CLIENT_REVOKED;
- else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCOUNT_LOCKED_OUT))
- ret = KRB5KDC_ERR_CLIENT_REVOKED;
- else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_WORKSTATION))
- ret = KRB5KDC_ERR_POLICY;
- else
- ret = KRB5KDC_ERR_POLICY;
-
- samba_kdc_build_edata_reply(tmp_ctx, e_data, nt_status);
+ return samba_kdc_map_policy_err(nt_status);
}
- return ret;
+ /* Now do the standard Heimdal check */
+ return kdc_check_flags(context, config,
+ client_ex, client_name,
+ server_ex, server_name,
+ req->msg_type == krb_as_req);
}
static krb5_error_code samba_wdc_plugin_init(krb5_context context, void **ptr)
git.samba.org / kai / samba.git / blobdiff