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
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-#include "kdc/kdc.h"
-#include "include/ads.h"
+#include "dsdb/common/flags.h"
#include "lib/ldb/include/ldb.h"
-#include "heimdal/lib/krb5/krb5_locl.h"
+#include "librpc/gen_ndr/ndr_krb5pac.h"
#include "librpc/gen_ndr/krb5pac.h"
#include "auth/auth.h"
+#include "auth/auth_sam.h"
+#include "auth/auth_sam_reply.h"
+#include "param/param.h"
+#include "kdc/kdc.h"
-/* Given the right private pointer from hdb_ldb, get a PAC from the attached ldb messages */
-static krb5_error_code samba_get_pac(krb5_context context,
- struct hdb_ldb_private *private,
- krb5_principal client,
- krb5_keyblock *krbtgt_keyblock,
- krb5_keyblock *server_keyblock,
- time_t tgs_authtime,
- krb5_data *pac)
+struct krb5_dh_moduli;
+struct _krb5_krb_auth_data;
+
+krb5_error_code samba_kdc_plugin_init(krb5_context context, void **ptr)
{
- krb5_error_code ret;
+ *ptr = NULL;
+ return 0;
+}
+
+void samba_kdc_plugin_fini(void *ptr)
+{
+ return;
+}
+
+static krb5_error_code make_pac(krb5_context context,
+ TALLOC_CTX *mem_ctx,
+ struct smb_iconv_convenience *iconv_convenience,
+ struct auth_serversupplied_info *server_info,
+ krb5_pac *pac)
+{
+ union PAC_INFO info;
+ struct netr_SamInfo3 *info3;
+ krb5_data pac_data;
NTSTATUS nt_status;
- struct auth_serversupplied_info *server_info;
- DATA_BLOB tmp_blob;
- TALLOC_CTX *mem_ctx = talloc_named(private, 0, "samba_get_pac context");
+ enum ndr_err_code ndr_err;
+ DATA_BLOB pac_out;
+ krb5_error_code ret;
- if (!mem_ctx) {
- return ENOMEM;
- }
+ ZERO_STRUCT(info);
- nt_status = authsam_make_server_info(mem_ctx, private->samdb,
- private->msg,
- private->realm_ref_msg,
- data_blob(NULL, 0),
- data_blob(NULL, 0),
- &server_info);
+ nt_status = auth_convert_server_info_saminfo3(mem_ctx, server_info, &info3);
if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(0, ("Getting user info for PAC failed: %s\n",
- nt_errstr(nt_status)));
- return ENOMEM;
+ DEBUG(1, ("Getting Samba info failed: %s\n", nt_errstr(nt_status)));
+ return EINVAL;
}
- ret = kerberos_create_pac(mem_ctx, server_info,
- context,
- krbtgt_keyblock,
- server_keyblock,
- client,
- tgs_authtime,
- &tmp_blob);
-
- if (ret) {
- DEBUG(1, ("PAC encoding failed: %s\n",
- smb_get_krb5_error_message(context, ret, mem_ctx)));
- talloc_free(mem_ctx);
- return ret;
+ info.logon_info.info = talloc_zero(mem_ctx, struct PAC_LOGON_INFO);
+ if (!mem_ctx) {
+ return ENOMEM;
}
- ret = krb5_data_copy(pac, tmp_blob.data, tmp_blob.length);
- talloc_free(mem_ctx);
- return ret;
-}
-
-/* Wrap the PAC in the right ASN.1. Will always free 'pac', on success or failure */
-static krb5_error_code wrap_pac(krb5_context context, krb5_data *pac, AuthorizationData **out)
-{
- krb5_error_code ret;
+ info.logon_info.info->info3 = *info3;
- unsigned char *buf;
- size_t buf_size;
- size_t len;
-
- AD_IF_RELEVANT if_relevant;
- AuthorizationData *auth_data;
-
- if_relevant.len = 1;
- if_relevant.val = malloc(sizeof(*if_relevant.val));
- if (!if_relevant.val) {
- krb5_data_free(pac);
- *out = NULL;
- return ENOMEM;
+ ndr_err = ndr_push_union_blob(&pac_out, mem_ctx, iconv_convenience, &info,
+ PAC_TYPE_LOGON_INFO,
+ (ndr_push_flags_fn_t)ndr_push_PAC_INFO);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ nt_status = ndr_map_error2ntstatus(ndr_err);
+ DEBUG(1, ("PAC (presig) push failed: %s\n", nt_errstr(nt_status)));
+ return EINVAL;
}
- if_relevant.val[0].ad_type = KRB5_AUTHDATA_WIN2K_PAC;
- if_relevant.val[0].ad_data.data = NULL;
- if_relevant.val[0].ad_data.length = 0;
-
- /* pac.data will be freed with this */
- if_relevant.val[0].ad_data.data = pac->data;
- if_relevant.val[0].ad_data.length = pac->length;
-
- ASN1_MALLOC_ENCODE(AuthorizationData, buf, buf_size, &if_relevant, &len, ret);
- free_AuthorizationData(&if_relevant);
- if (ret) {
- *out = NULL;
+ ret = krb5_data_copy(&pac_data, pac_out.data, pac_out.length);
+ if (ret != 0) {
return ret;
- }
-
- auth_data = malloc(sizeof(*auth_data));
- if (!auth_data) {
- free(buf);
- *out = NULL;
+ }
+
+ ret = krb5_pac_init(context, pac);
+ if (ret != 0) {
+ krb5_data_free(&pac_data);
return ret;
- }
- auth_data->len = 1;
- auth_data->val = malloc(sizeof(*auth_data->val));
- if (!auth_data->val) {
- free(buf);
- free(auth_data);
- *out = NULL;
+ }
+
+ ret = krb5_pac_add_buffer(context, *pac, PAC_TYPE_LOGON_INFO, &pac_data);
+ krb5_data_free(&pac_data);
+ if (ret != 0) {
return ret;
}
- auth_data->val[0].ad_type = KRB5_AUTHDATA_IF_RELEVANT;
- auth_data->val[0].ad_data.length = len;
- auth_data->val[0].ad_data.data = buf;
- *out = auth_data;
- return 0;
+ return ret;
}
-
-/* Given a hdb_entry, create a PAC out of the private data
-
- Don't create it if the client has the UF_NO_AUTH_DATA_REQUIRED bit
- set, or if they specificaly asked not to get it.
-*/
-
-krb5_error_code hdb_ldb_authz_data_as_req(krb5_context context, struct hdb_entry_ex *entry_ex,
- METHOD_DATA* pa_data_seq,
- time_t authtime,
- EncryptionKey *tgtkey,
- EncryptionKey *sessionkey,
- AuthorizationData **out)
+/* Given the right private pointer from hdb_ldb, get a PAC from the attached ldb messages */
+krb5_error_code samba_kdc_get_pac(void *priv,
+ krb5_context context,
+ struct hdb_entry_ex *client,
+ krb5_pac *pac)
{
krb5_error_code ret;
- int i;
- krb5_data pac;
- krb5_boolean pac_wanted = TRUE;
+ NTSTATUS nt_status;
+ struct auth_serversupplied_info *server_info;
+ struct hdb_ldb_private *private = talloc_get_type(client->ctx, struct hdb_ldb_private);
+ TALLOC_CTX *mem_ctx = talloc_named(private, 0, "samba_get_pac context");
unsigned int userAccountControl;
- struct PA_PAC_REQUEST pac_request;
- struct hdb_ldb_private *private = talloc_get_type(entry_ex->ctx, struct hdb_ldb_private);
-
+
+ if (!mem_ctx) {
+ return ENOMEM;
+ }
+
/* The user account may be set not to want the PAC */
- userAccountControl = ldb_msg_find_uint(private->msg, "userAccountControl", 0);
+ userAccountControl = ldb_msg_find_attr_as_uint(private->msg, "userAccountControl", 0);
if (userAccountControl & UF_NO_AUTH_DATA_REQUIRED) {
- *out = NULL;
+ *pac = NULL;
return 0;
}
- /* The user may not want a PAC */
- for (i=0; i<pa_data_seq->len; i++) {
- if (pa_data_seq->val[i].padata_type == KRB5_PADATA_PA_PAC_REQUEST) {
- ret = decode_PA_PAC_REQUEST(pa_data_seq->val[i].padata_value.data,
- pa_data_seq->val[i].padata_value.length,
- &pac_request, NULL);
- if (ret == 0) {
- pac_wanted = !!pac_request.include_pac;
- }
- free_PA_PAC_REQUEST(&pac_request);
- break;
- }
+ nt_status = authsam_make_server_info(mem_ctx, private->samdb,
+ private->netbios_name,
+ private->msg,
+ private->realm_ref_msg,
+ data_blob(NULL, 0),
+ data_blob(NULL, 0),
+ &server_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(0, ("Getting user info for PAC failed: %s\n",
+ nt_errstr(nt_status)));
+ return ENOMEM;
}
- if (!pac_wanted) {
- *out = NULL;
- return 0;
- }
-
- /* Get PAC from Samba */
- ret = samba_get_pac(context,
- private,
- entry_ex->entry.principal,
- tgtkey,
- tgtkey,
- authtime,
- &pac);
+ ret = make_pac(context, mem_ctx, private->iconv_convenience, server_info, pac);
- if (ret) {
- *out = NULL;
- return ret;
- }
-
- return wrap_pac(context, &pac, out);
+ talloc_free(mem_ctx);
+ return ret;
}
/* Resign (and reform, including possibly new groups) a PAC */
-krb5_error_code hdb_ldb_authz_data_tgs_req(krb5_context context, struct hdb_entry_ex *entry_ex,
- krb5_principal client,
- AuthorizationData *in,
- time_t authtime,
- EncryptionKey *tgtkey,
- EncryptionKey *servicekey,
- EncryptionKey *sessionkey,
- AuthorizationData **out)
+krb5_error_code samba_kdc_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)
{
- NTSTATUS nt_status;
krb5_error_code ret;
unsigned int userAccountControl;
- struct hdb_ldb_private *private = talloc_get_type(entry_ex->ctx, struct hdb_ldb_private);
- krb5_data k5pac_in, k5pac_out;
- DATA_BLOB pac_in, pac_out;
+ struct hdb_ldb_private *private = talloc_get_type(server->ctx, struct hdb_ldb_private);
- struct PAC_LOGON_INFO *logon_info;
- union netr_Validation validation;
struct auth_serversupplied_info *server_info_out;
- krb5_boolean found = FALSE;
- TALLOC_CTX *mem_ctx;
+ TALLOC_CTX *mem_ctx = talloc_named(private, 0, "samba_get_pac context");
- /* The service account may be set not to want the PAC */
- userAccountControl = ldb_msg_find_uint(private->msg, "userAccountControl", 0);
- if (userAccountControl & UF_NO_AUTH_DATA_REQUIRED) {
- *out = NULL;
- return 0;
- }
-
- ret = _krb5_find_type_in_ad(context, KRB5_AUTHDATA_WIN2K_PAC,
- &k5pac_in, &found, sessionkey, in);
- if (ret || !found) {
- *out = NULL;
- return 0;
- }
-
- mem_ctx = talloc_new(private);
if (!mem_ctx) {
- krb5_data_free(&k5pac_in);
- *out = NULL;
return ENOMEM;
}
- pac_in = data_blob_talloc(mem_ctx, k5pac_in.data, k5pac_in.length);
- krb5_data_free(&k5pac_in);
- if (!pac_in.data) {
+ /* The service account may be set not to want the PAC */
+ userAccountControl = ldb_msg_find_attr_as_uint(private->msg, "userAccountControl", 0);
+ if (userAccountControl & UF_NO_AUTH_DATA_REQUIRED) {
talloc_free(mem_ctx);
- *out = NULL;
- return ENOMEM;
+ *pac = NULL;
+ return 0;
}
-
- /* Parse the PAC again, for the logon info */
- nt_status = kerberos_pac_logon_info(mem_ctx, &logon_info,
- pac_in,
- context,
- tgtkey,
- tgtkey,
- client, authtime,
- &ret);
- if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(1, ("Failed to parse PAC in TGT: %s/%s\n",
- nt_errstr(nt_status), error_message(ret)));
+ ret = kerberos_pac_to_server_info(mem_ctx, private->iconv_convenience,
+ *pac, context, &server_info_out);
+
+ /* We will compleatly regenerate this pac */
+ krb5_pac_free(context, *pac);
+
+ if (ret) {
talloc_free(mem_ctx);
- *out = NULL;
return ret;
}
- /* Pull this right into the normal auth sysstem structures */
- validation.sam3 = &logon_info->info3;
- nt_status = make_server_info_netlogon_validation(mem_ctx,
- "",
- 3, &validation,
- &server_info_out);
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(mem_ctx);
- *out = NULL;
- return ENOMEM;
- }
+ ret = make_pac(context, mem_ctx, private->iconv_convenience, server_info_out, pac);
- /* And make a new PAC, possibly containing new groups */
- ret = kerberos_create_pac(mem_ctx,
- server_info_out,
- context,
- tgtkey,
- servicekey,
- client,
- authtime,
- &pac_out);
+ talloc_free(mem_ctx);
+ return ret;
+}
- if (ret != 0) {
- talloc_free(mem_ctx);
- *out = NULL;
- return ret;
+static void samba_kdc_build_edata_reply(TALLOC_CTX *tmp_ctx, krb5_data *e_data,
+ NTSTATUS nt_status)
+{
+ PA_DATA pa;
+ unsigned char *buf;
+ size_t len;
+ krb5_error_code ret = 0;
+
+ if (!e_data)
+ return;
+
+ pa.padata_type = KRB5_PADATA_PW_SALT;
+ pa.padata_value.length = 12;
+ pa.padata_value.data = malloc(pa.padata_value.length);
+ if (!pa.padata_value.data) {
+ e_data->length = 0;
+ e_data->data = NULL;
+ return;
}
- ret = krb5_data_copy(&k5pac_out, pac_out.data, pac_out.length);
- if (ret != 0) {
- talloc_free(mem_ctx);
- *out = NULL;
- return ret;
- }
+ SIVAL(pa.padata_value.data, 0, NT_STATUS_V(nt_status));
+ SIVAL(pa.padata_value.data, 4, 0);
+ SIVAL(pa.padata_value.data, 8, 1);
+
+ ASN1_MALLOC_ENCODE(PA_DATA, buf, len, &pa, &len, ret);
+ free(pa.padata_value.data);
- return wrap_pac(context, &k5pac_out, out);
+ e_data->data = buf;
+ e_data->length = len;
+
+ return;
}
/* Given an hdb entry (and in particular it's private member), consult
* the account_ok routine in auth/auth_sam.c for consistancy */
-krb5_error_code hdb_ldb_check_client_access(krb5_context context, hdb_entry_ex *entry_ex,
- HostAddresses *addresses)
+
+krb5_error_code samba_kdc_check_client_access(void *priv,
+ krb5_context context, hdb_entry_ex *entry_ex,
+ KDC_REQ *req,
+ krb5_data *e_data)
{
krb5_error_code ret;
NTSTATUS nt_status;
TALLOC_CTX *tmp_ctx = talloc_new(entry_ex->ctx);
struct hdb_ldb_private *private = talloc_get_type(entry_ex->ctx, struct hdb_ldb_private);
char *name, *workstation = NULL;
+ HostAddresses *addresses = req->req_body.addresses;
int i;
if (!tmp_ctx) {
talloc_free(tmp_ctx);
return ret;
}
-
- 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 (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;
+ }
}
}
}
name);
free(name);
- /* TODO: Need a more complete mapping of NTSTATUS to krb5kdc errors */
+ if (NT_STATUS_IS_OK(nt_status))
+ return 0;
- if (!NT_STATUS_IS_OK(nt_status)) {
- return KRB5KDC_ERR_POLICY;
- }
- return 0;
+ 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 ret;
}
git.samba.org / kai / samba.git / blobdiff