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 "lib/events/events.h"
#include "system/kerberos.h"
-#include "heimdal/lib/gssapi/gssapi/gssapi.h"
#include "auth/kerberos/kerberos.h"
#include "librpc/gen_ndr/krb5pac.h"
#include "auth/auth.h"
#include "auth/credentials/credentials.h"
#include "auth/credentials/credentials_krb5.h"
#include "auth/gensec/gensec.h"
-
-enum gensec_gssapi_sasl_state
-{
- STAGE_GSS_NEG,
- STAGE_SASL_SSF_NEG,
- STAGE_SASL_SSF_ACCEPT,
- STAGE_DONE
-};
-
-#define NEG_SEAL 0x4
-#define NEG_SIGN 0x2
-#define NEG_NONE 0x1
-
-struct gensec_gssapi_state {
- gss_ctx_id_t gssapi_context;
- struct gss_channel_bindings_struct *input_chan_bindings;
- gss_name_t server_name;
- gss_name_t client_name;
- OM_uint32 want_flags, got_flags;
- const gss_OID_desc *gss_oid;
-
- DATA_BLOB session_key;
- DATA_BLOB pac;
-
- struct smb_krb5_context *smb_krb5_context;
- struct gssapi_creds_container *client_cred;
- struct gssapi_creds_container *server_cred;
-
- gss_cred_id_t delegated_cred_handle;
-
- BOOL sasl; /* We have two different mechs in this file: One
- * for SASL wrapped GSSAPI and another for normal
- * GSSAPI */
- enum gensec_gssapi_sasl_state sasl_state;
- uint8_t sasl_protection; /* What was negotiated at the SASL
- * layer, independent of the GSSAPI
- * layer... */
-
- size_t max_wrap_buf_size;
- int gss_exchange_count;
-};
+#include "auth/gensec/gensec_proto.h"
+#include "param/param.h"
+#include "auth/session_proto.h"
+#include <gssapi/gssapi.h>
+#include <gssapi/gssapi_krb5.h>
+#include <gssapi/gssapi_spnego.h>
+#include "auth/gensec/gensec_gssapi.h"
+#include "lib/util/util_net.h"
static size_t gensec_gssapi_max_input_size(struct gensec_security *gensec_security);
static size_t gensec_gssapi_max_wrapped_size(struct gensec_security *gensec_security);
static char *gssapi_error_string(TALLOC_CTX *mem_ctx,
OM_uint32 maj_stat, OM_uint32 min_stat,
- const gss_OID_desc *mech)
+ const gss_OID mech)
{
OM_uint32 disp_min_stat, disp_maj_stat;
gss_buffer_desc maj_error_message;
gss_buffer_desc min_error_message;
+ char *maj_error_string, *min_error_string;
OM_uint32 msg_ctx = 0;
char *ret;
maj_error_message.value = NULL;
min_error_message.value = NULL;
+ maj_error_message.length = 0;
+ min_error_message.length = 0;
disp_maj_stat = gss_display_status(&disp_min_stat, maj_stat, GSS_C_GSS_CODE,
mech, &msg_ctx, &maj_error_message);
disp_maj_stat = gss_display_status(&disp_min_stat, min_stat, GSS_C_MECH_CODE,
mech, &msg_ctx, &min_error_message);
- ret = talloc_asprintf(mem_ctx, "%s: %s", (char *)maj_error_message.value, (char *)min_error_message.value);
+
+ maj_error_string = talloc_strndup(mem_ctx, (char *)maj_error_message.value, maj_error_message.length);
+
+ min_error_string = talloc_strndup(mem_ctx, (char *)min_error_message.value, min_error_message.length);
+
+ ret = talloc_asprintf(mem_ctx, "%s: %s", maj_error_string, min_error_string);
+
+ talloc_free(maj_error_string);
+ talloc_free(min_error_string);
gss_release_buffer(&disp_min_stat, &maj_error_message);
gss_release_buffer(&disp_min_stat, &min_error_message);
if (gensec_gssapi_state->client_name != GSS_C_NO_NAME) {
maj_stat = gss_release_name(&min_stat, &gensec_gssapi_state->client_name);
}
+
+ if (gensec_gssapi_state->lucid) {
+ gss_krb5_free_lucid_sec_context(&min_stat, gensec_gssapi_state->lucid);
+ }
+
return 0;
}
+static NTSTATUS gensec_gssapi_init_lucid(struct gensec_gssapi_state *gensec_gssapi_state)
+{
+ OM_uint32 maj_stat, min_stat;
+
+ if (gensec_gssapi_state->lucid) {
+ return NT_STATUS_OK;
+ }
+
+ maj_stat = gss_krb5_export_lucid_sec_context(&min_stat,
+ &gensec_gssapi_state->gssapi_context,
+ 1,
+ (void **)&gensec_gssapi_state->lucid);
+ if (maj_stat != GSS_S_COMPLETE) {
+ DEBUG(0,("gensec_gssapi_init_lucid: %s\n",
+ gssapi_error_string(gensec_gssapi_state,
+ maj_stat, min_stat,
+ gensec_gssapi_state->gss_oid)));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ if (gensec_gssapi_state->lucid->version != 1) {
+ DEBUG(0,("gensec_gssapi_init_lucid: lucid version[%d] != 1\n",
+ gensec_gssapi_state->lucid->version));
+ gss_krb5_free_lucid_sec_context(&min_stat, gensec_gssapi_state->lucid);
+ gensec_gssapi_state->lucid = NULL;
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ return NT_STATUS_OK;
+}
+
static NTSTATUS gensec_gssapi_start(struct gensec_security *gensec_security)
{
struct gensec_gssapi_state *gensec_gssapi_state;
krb5_error_code ret;
struct gsskrb5_send_to_kdc send_to_kdc;
+ const char *realm;
gensec_gssapi_state = talloc(gensec_security, struct gensec_gssapi_state);
if (!gensec_gssapi_state) {
gensec_gssapi_state->gss_exchange_count = 0;
gensec_gssapi_state->max_wrap_buf_size
- = lp_parm_int(-1, "gensec_gssapi", "max wrap buf size", 65536);
+ = gensec_setting_int(gensec_security->settings, "gensec_gssapi", "max wrap buf size", 65536);
- gensec_gssapi_state->sasl = False;
+ gensec_gssapi_state->sasl = false;
gensec_gssapi_state->sasl_state = STAGE_GSS_NEG;
gensec_security->private_data = gensec_gssapi_state;
gensec_gssapi_state->gssapi_context = GSS_C_NO_CONTEXT;
gensec_gssapi_state->server_name = GSS_C_NO_NAME;
gensec_gssapi_state->client_name = GSS_C_NO_NAME;
+ gensec_gssapi_state->lucid = NULL;
/* TODO: Fill in channel bindings */
gensec_gssapi_state->input_chan_bindings = GSS_C_NO_CHANNEL_BINDINGS;
gensec_gssapi_state->want_flags = 0;
- if (lp_parm_bool(-1, "gensec_gssapi", "mutual", True)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "delegation_by_kdc_policy", true)) {
+ gensec_gssapi_state->want_flags |= GSS_C_DELEG_POLICY_FLAG;
+ }
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "mutual", true)) {
gensec_gssapi_state->want_flags |= GSS_C_MUTUAL_FLAG;
}
- if (lp_parm_bool(-1, "gensec_gssapi", "delegation", True)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "delegation", true)) {
gensec_gssapi_state->want_flags |= GSS_C_DELEG_FLAG;
}
- if (lp_parm_bool(-1, "gensec_gssapi", "replay", True)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "replay", true)) {
gensec_gssapi_state->want_flags |= GSS_C_REPLAY_FLAG;
}
- if (lp_parm_bool(-1, "gensec_gssapi", "sequence", True)) {
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "sequence", true)) {
gensec_gssapi_state->want_flags |= GSS_C_SEQUENCE_FLAG;
}
gensec_gssapi_state->pac = data_blob(NULL, 0);
gensec_gssapi_state->delegated_cred_handle = GSS_C_NO_CREDENTIAL;
+ gensec_gssapi_state->sig_size = 0;
talloc_set_destructor(gensec_gssapi_state, gensec_gssapi_destructor);
gensec_gssapi_state->want_flags |= GSS_C_DCE_STYLE;
}
- gensec_gssapi_state->gss_oid = GSS_C_NULL_OID;
-
+ switch (gensec_security->ops->auth_type) {
+ case DCERPC_AUTH_TYPE_SPNEGO:
+ gensec_gssapi_state->gss_oid = gss_mech_spnego;
+ break;
+ case DCERPC_AUTH_TYPE_KRB5:
+ default:
+ gensec_gssapi_state->gss_oid = gss_mech_krb5;
+ break;
+ }
+
send_to_kdc.func = smb_krb5_send_and_recv_func;
send_to_kdc.ptr = gensec_security->event_ctx;
talloc_free(gensec_gssapi_state);
return NT_STATUS_INTERNAL_ERROR;
}
- if (lp_realm() && *lp_realm()) {
- char *upper_realm = strupper_talloc(gensec_gssapi_state, lp_realm());
- if (!upper_realm) {
- DEBUG(1,("gensec_krb5_start: could not uppercase realm: %s\n", lp_realm()));
- talloc_free(gensec_gssapi_state);
- return NT_STATUS_NO_MEMORY;
- }
- ret = gsskrb5_set_default_realm(upper_realm);
- talloc_free(upper_realm);
+
+ realm = lp_realm(gensec_security->settings->lp_ctx);
+ if (realm != NULL) {
+ ret = gsskrb5_set_default_realm(realm);
if (ret) {
DEBUG(1,("gensec_krb5_start: gsskrb5_set_default_realm failed\n"));
talloc_free(gensec_gssapi_state);
}
/* don't do DNS lookups of any kind, it might/will fail for a netbios name */
- ret = gsskrb5_set_dns_canonicalize(FALSE);
+ ret = gsskrb5_set_dns_canonicalize(gensec_setting_bool(gensec_security->settings, "krb5", "set_dns_canonicalize", false));
if (ret) {
DEBUG(1,("gensec_krb5_start: gsskrb5_set_dns_canonicalize failed\n"));
talloc_free(gensec_gssapi_state);
}
ret = smb_krb5_init_context(gensec_gssapi_state,
+ gensec_security->event_ctx,
+ gensec_security->settings->lp_ctx,
&gensec_gssapi_state->smb_krb5_context);
if (ret) {
DEBUG(1,("gensec_krb5_start: krb5_init_context failed (%s)\n",
DEBUG(3, ("No machine account credentials specified\n"));
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
} else {
- ret = cli_credentials_get_server_gss_creds(machine_account, &gcc);
+ ret = cli_credentials_get_server_gss_creds(machine_account,
+ gensec_security->event_ctx,
+ gensec_security->settings->lp_ctx, &gcc);
if (ret) {
DEBUG(1, ("Aquiring acceptor credentials failed: %s\n",
error_message(ret)));
if (NT_STATUS_IS_OK(nt_status)) {
gensec_gssapi_state = talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- gensec_gssapi_state->sasl = True;
+ gensec_gssapi_state->sasl = true;
}
return nt_status;
}
const char *hostname = gensec_get_target_hostname(gensec_security);
const char *principal;
struct gssapi_creds_container *gcc;
+ const char *error_string;
if (!hostname) {
DEBUG(1, ("Could not determine hostname for target computer, cannot use kerberos\n"));
gensec_gssapi_state = talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- gensec_gssapi_state->gss_oid = gss_mech_krb5;
-
principal = gensec_get_target_principal(gensec_security);
- if (principal && lp_client_use_spnego_principal()) {
+ if (principal && lp_client_use_spnego_principal(gensec_security->settings->lp_ctx)) {
name_type = GSS_C_NULL_OID;
} else {
- principal = talloc_asprintf(gensec_gssapi_state, "%s@%s",
+ principal = talloc_asprintf(gensec_gssapi_state, "%s/%s@%s",
gensec_get_target_service(gensec_security),
- hostname);
+ hostname, lp_realm(gensec_security->settings->lp_ctx));
- name_type = GSS_C_NT_HOSTBASED_SERVICE;
+ name_type = GSS_C_NT_USER_NAME;
}
name_token.value = discard_const_p(uint8_t, principal);
name_token.length = strlen(principal);
return NT_STATUS_INVALID_PARAMETER;
}
- ret = cli_credentials_get_client_gss_creds(creds, &gcc);
+ ret = cli_credentials_get_client_gss_creds(creds,
+ gensec_security->event_ctx,
+ gensec_security->settings->lp_ctx, &gcc, &error_string);
switch (ret) {
case 0:
break;
+ case KRB5KDC_ERR_PREAUTH_FAILED:
+ return NT_STATUS_LOGON_FAILURE;
case KRB5_KDC_UNREACH:
- DEBUG(3, ("Cannot reach a KDC we require to contact %s\n", principal));
+ DEBUG(3, ("Cannot reach a KDC we require to contact %s : %s\n", principal, error_string));
+ return NT_STATUS_INVALID_PARAMETER; /* Make SPNEGO ignore us, we can't go any further here */
+ case KRB5_CC_NOTFOUND:
+ case KRB5_CC_END:
+ DEBUG(3, ("Error preparing credentials we require to contact %s : %s\n", principal, error_string));
return NT_STATUS_INVALID_PARAMETER; /* Make SPNEGO ignore us, we can't go any further here */
default:
- DEBUG(1, ("Aquiring initiator credentails failed\n"));
+ DEBUG(1, ("Aquiring initiator credentials failed: %s\n", error_string));
return NT_STATUS_UNSUCCESSFUL;
}
gensec_gssapi_state->client_cred = gcc;
-
+ if (!talloc_reference(gensec_gssapi_state, gcc)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
return NT_STATUS_OK;
}
if (NT_STATUS_IS_OK(nt_status)) {
gensec_gssapi_state = talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
- gensec_gssapi_state->sasl = True;
+ gensec_gssapi_state->sasl = true;
}
return nt_status;
}
gensec_gssapi_state->client_cred->creds,
&gensec_gssapi_state->gssapi_context,
gensec_gssapi_state->server_name,
- discard_const_p(gss_OID_desc, gensec_gssapi_state->gss_oid),
+ gensec_gssapi_state->gss_oid,
gensec_gssapi_state->want_flags,
0,
gensec_gssapi_state->input_chan_bindings,
maj_stat = gss_wrap(&min_stat,
gensec_gssapi_state->gssapi_context,
- False,
+ false,
GSS_C_QOP_DEFAULT,
&input_token,
&conf_state,
maj_stat = gss_wrap(&min_stat,
gensec_gssapi_state->gssapi_context,
- False,
+ false,
GSS_C_QOP_DEFAULT,
&input_token,
&conf_state,
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
OM_uint32 maj_stat, min_stat;
gss_buffer_desc input_token, output_token;
- int conf_state;
- ssize_t sig_length = 0;
- input_token.length = length;
- input_token.value = discard_const_p(uint8_t *, data);
+ if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) {
+ input_token.length = pdu_length;
+ input_token.value = discard_const_p(uint8_t *, whole_pdu);
+ } else {
+ input_token.length = length;
+ input_token.value = discard_const_p(uint8_t *, data);
+ }
- maj_stat = gss_wrap(&min_stat,
+ maj_stat = gss_get_mic(&min_stat,
gensec_gssapi_state->gssapi_context,
- 0,
GSS_C_QOP_DEFAULT,
&input_token,
- &conf_state,
&output_token);
if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("GSS Wrap failed: %s\n",
+ DEBUG(1, ("GSS GetMic failed: %s\n",
gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
return NT_STATUS_ACCESS_DENIED;
}
- if (output_token.length < input_token.length) {
- DEBUG(1, ("gensec_gssapi_sign_packet: GSS Wrap length [%ld] *less* than caller length [%ld]\n",
- (long)output_token.length, (long)length));
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- /* Caller must pad to right boundary */
- sig_length = output_token.length - input_token.length;
-
- *sig = data_blob_talloc(mem_ctx, (uint8_t *)output_token.value, sig_length);
+ *sig = data_blob_talloc(mem_ctx, (uint8_t *)output_token.value, output_token.length);
dump_data_pw("gensec_gssapi_seal_packet: sig\n", sig->data, sig->length);
struct gensec_gssapi_state *gensec_gssapi_state
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
OM_uint32 maj_stat, min_stat;
- gss_buffer_desc input_token, output_token;
- int conf_state;
+ gss_buffer_desc input_token;
+ gss_buffer_desc input_message;
gss_qop_t qop_state;
- DATA_BLOB in;
dump_data_pw("gensec_gssapi_seal_packet: sig\n", sig->data, sig->length);
- in = data_blob_talloc(mem_ctx, NULL, sig->length + length);
+ if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) {
+ input_message.length = pdu_length;
+ input_message.value = discard_const(whole_pdu);
+ } else {
+ input_message.length = length;
+ input_message.value = discard_const(data);
+ }
- memcpy(in.data, sig->data, sig->length);
- memcpy(in.data + sig->length, data, length);
+ input_token.length = sig->length;
+ input_token.value = sig->data;
- input_token.length = in.length;
- input_token.value = in.data;
-
- maj_stat = gss_unwrap(&min_stat,
+ maj_stat = gss_verify_mic(&min_stat,
gensec_gssapi_state->gssapi_context,
+ &input_message,
&input_token,
- &output_token,
- &conf_state,
&qop_state);
if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("GSS UnWrap failed: %s\n",
+ DEBUG(1, ("GSS VerifyMic failed: %s\n",
gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
return NT_STATUS_ACCESS_DENIED;
}
- if (output_token.length != length) {
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- gss_release_buffer(&min_stat, &output_token);
-
return NT_STATUS_OK;
}
/* Try to figure out what features we actually got on the connection */
-static BOOL gensec_gssapi_have_feature(struct gensec_security *gensec_security,
+static bool gensec_gssapi_have_feature(struct gensec_security *gensec_security,
uint32_t feature)
{
struct gensec_gssapi_state *gensec_gssapi_state
if (feature & GENSEC_FEATURE_SESSION_KEY) {
/* Only for GSSAPI/Krb5 */
if (gss_oid_equal(gensec_gssapi_state->gss_oid, gss_mech_krb5)) {
- return True;
+ return true;
}
}
if (feature & GENSEC_FEATURE_DCE_STYLE) {
return gensec_gssapi_state->got_flags & GSS_C_DCE_STYLE;
}
+ if (feature & GENSEC_FEATURE_NEW_SPNEGO) {
+ NTSTATUS status;
+
+ if (!(gensec_gssapi_state->got_flags & GSS_C_INTEG_FLAG)) {
+ return false;
+ }
+
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "force_new_spnego", false)) {
+ return true;
+ }
+ if (gensec_setting_bool(gensec_security->settings, "gensec_gssapi", "disable_new_spnego", false)) {
+ return false;
+ }
+
+ status = gensec_gssapi_init_lucid(gensec_gssapi_state);
+ if (!NT_STATUS_IS_OK(status)) {
+ return false;
+ }
+
+ if (gensec_gssapi_state->lucid->protocol == 1) {
+ return true;
+ }
+
+ return false;
+ }
/* We can always do async (rather than strict request/reply) packets. */
if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
- return True;
+ return true;
}
- return False;
+ return false;
}
/*
OM_uint32 maj_stat, min_stat;
krb5_keyblock *subkey;
+ if (gensec_gssapi_state->sasl_state != STAGE_DONE) {
+ return NT_STATUS_NO_USER_SESSION_KEY;
+ }
+
if (gensec_gssapi_state->session_key.data) {
*session_key = gensec_gssapi_state->session_key;
return NT_STATUS_OK;
}
- maj_stat = gsskrb5_get_initiator_subkey(&min_stat,
- gensec_gssapi_state->gssapi_context,
- &subkey);
+ maj_stat = gsskrb5_get_subkey(&min_stat,
+ gensec_gssapi_state->gssapi_context,
+ &subkey);
if (maj_stat != 0) {
DEBUG(1, ("NO session key for this mech\n"));
return NT_STATUS_NO_USER_SESSION_KEY;
}
- DEBUG(10, ("Got KRB5 session key of length %d\n",
- (int)KRB5_KEY_LENGTH(subkey)));
- gensec_gssapi_state->session_key = data_blob_talloc(gensec_gssapi_state,
- KRB5_KEY_DATA(subkey), KRB5_KEY_LENGTH(subkey));
+ DEBUG(10, ("Got KRB5 session key of length %d%s\n",
+ (int)KRB5_KEY_LENGTH(subkey),
+ (gensec_gssapi_state->sasl_state == STAGE_DONE)?" (done)":""));
+ *session_key = data_blob_talloc(gensec_gssapi_state,
+ KRB5_KEY_DATA(subkey), KRB5_KEY_LENGTH(subkey));
krb5_free_keyblock(gensec_gssapi_state->smb_krb5_context->krb5_context, subkey);
- *session_key = gensec_gssapi_state->session_key;
+ gensec_gssapi_state->session_key = *session_key;
dump_data_pw("KRB5 Session Key:\n", session_key->data, session_key->length);
return NT_STATUS_OK;
= talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info = NULL;
- struct PAC_LOGON_INFO *logon_info;
OM_uint32 maj_stat, min_stat;
- gss_buffer_desc name_token;
gss_buffer_desc pac;
- krb5_keyblock *keyblock;
- time_t authtime;
- krb5_principal principal;
- char *principal_string;
DATA_BLOB pac_blob;
if ((gensec_gssapi_state->gss_oid->length != gss_mech_krb5->length)
mem_ctx = talloc_named(gensec_gssapi_state, 0, "gensec_gssapi_session_info context");
NT_STATUS_HAVE_NO_MEMORY(mem_ctx);
- maj_stat = gss_display_name (&min_stat,
- gensec_gssapi_state->client_name,
- &name_token,
- NULL);
- if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("GSS display_name failed: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- talloc_free(mem_ctx);
- return NT_STATUS_FOOBAR;
- }
-
- principal_string = talloc_strndup(mem_ctx, name_token.value, name_token.length);
-
- gss_release_buffer(&min_stat, &name_token);
-
- if (!principal_string) {
- talloc_free(mem_ctx);
- return NT_STATUS_NO_MEMORY;
- }
-
maj_stat = gsskrb5_extract_authz_data_from_sec_context(&min_stat,
gensec_gssapi_state->gssapi_context,
KRB5_AUTHDATA_WIN2K_PAC,
* kind...
*/
if (pac_blob.length) {
- krb5_error_code ret;
- union netr_Validation validation;
-
- maj_stat = gsskrb5_extract_authtime_from_sec_context(&min_stat,
- gensec_gssapi_state->gssapi_context,
- &authtime);
-
- if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("gsskrb5_extract_authtime_from_sec_context: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ nt_status = kerberos_pac_blob_to_server_info(mem_ctx,
+ pac_blob,
+ gensec_gssapi_state->smb_krb5_context->krb5_context,
+ &server_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
- return NT_STATUS_FOOBAR;
+ return nt_status;
}
+ } else {
+ gss_buffer_desc name_token;
+ char *principal_string;
- maj_stat = gsskrb5_extract_service_keyblock(&min_stat,
- gensec_gssapi_state->gssapi_context,
- &keyblock);
-
+ maj_stat = gss_display_name (&min_stat,
+ gensec_gssapi_state->client_name,
+ &name_token,
+ NULL);
if (GSS_ERROR(maj_stat)) {
- DEBUG(1, ("gsskrb5_copy_service_keyblock failed: %s\n",
+ DEBUG(1, ("GSS display_name failed: %s\n",
gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
talloc_free(mem_ctx);
return NT_STATUS_FOOBAR;
- }
-
- ret = krb5_parse_name_flags(gensec_gssapi_state->smb_krb5_context->krb5_context,
- principal_string,
- KRB5_PRINCIPAL_PARSE_MUST_REALM,
- &principal);
- if (ret) {
- krb5_free_keyblock(gensec_gssapi_state->smb_krb5_context->krb5_context,
- keyblock);
- talloc_free(mem_ctx);
- return NT_STATUS_INVALID_PARAMETER;
}
- /* decode and verify the pac */
- nt_status = kerberos_pac_logon_info(mem_ctx, &logon_info, pac_blob,
- gensec_gssapi_state->smb_krb5_context->krb5_context,
- NULL, keyblock, principal, authtime, NULL);
- krb5_free_principal(gensec_gssapi_state->smb_krb5_context->krb5_context, principal);
- krb5_free_keyblock(gensec_gssapi_state->smb_krb5_context->krb5_context,
- keyblock);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(mem_ctx);
- return nt_status;
- }
- validation.sam3 = &logon_info->info3;
- nt_status = make_server_info_netlogon_validation(gensec_gssapi_state,
- NULL,
- 3, &validation,
- &server_info);
- if (!NT_STATUS_IS_OK(nt_status)) {
+ principal_string = talloc_strndup(mem_ctx,
+ (const char *)name_token.value,
+ name_token.length);
+
+ gss_release_buffer(&min_stat, &name_token);
+
+ if (!principal_string) {
talloc_free(mem_ctx);
- return nt_status;
+ return NT_STATUS_NO_MEMORY;
}
- } else if (!lp_parm_bool(-1, "gensec", "require_pac", False)) {
- DEBUG(1, ("Unable to find PAC, resorting to local user lookup: %s\n",
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- nt_status = sam_get_server_info_principal(mem_ctx, principal_string,
- &server_info);
- if (!NT_STATUS_IS_OK(nt_status)) {
- talloc_free(mem_ctx);
- return nt_status;
+ if (gensec_security->auth_context &&
+ !gensec_setting_bool(gensec_security->settings, "gensec", "require_pac", false)) {
+ DEBUG(1, ("Unable to find PAC, resorting to local user lookup: %s\n",
+ gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ nt_status = gensec_security->auth_context->get_server_info_principal(mem_ctx,
+ gensec_security->auth_context,
+ principal_string,
+ &server_info);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(mem_ctx);
+ return nt_status;
+ }
+ } else {
+ DEBUG(1, ("Unable to find PAC in ticket from %s, failing to allow access: %s\n",
+ principal_string,
+ gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
+ return NT_STATUS_ACCESS_DENIED;
}
- } else {
- DEBUG(1, ("Unable to find PAC in ticket from %s, failing to allow access: %s\n",
- principal_string,
- gssapi_error_string(mem_ctx, maj_stat, min_stat, gensec_gssapi_state->gss_oid)));
- return NT_STATUS_ACCESS_DENIED;
}
/* references the server_info into the session_info */
- nt_status = auth_generate_session_info(mem_ctx, server_info, &session_info);
+ nt_status = gensec_generate_session_info(mem_ctx, gensec_security,
+ server_info, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
DEBUG(10, ("gensec_gssapi: NO delegated credentials supplied by client\n"));
} else {
krb5_error_code ret;
+ const char *error_string;
+
DEBUG(10, ("gensec_gssapi: delegated credentials supplied by client\n"));
session_info->credentials = cli_credentials_init(session_info);
if (!session_info->credentials) {
return NT_STATUS_NO_MEMORY;
}
- cli_credentials_set_conf(session_info->credentials);
+ cli_credentials_set_conf(session_info->credentials, gensec_security->settings->lp_ctx);
+ /* Just so we don't segfault trying to get at a username */
+ cli_credentials_set_anonymous(session_info->credentials);
ret = cli_credentials_set_client_gss_creds(session_info->credentials,
+ gensec_security->event_ctx,
+ gensec_security->settings->lp_ctx,
gensec_gssapi_state->delegated_cred_handle,
- CRED_SPECIFIED);
+ CRED_SPECIFIED, &error_string);
if (ret) {
talloc_free(mem_ctx);
+ DEBUG(2,("Failed to get gss creds: %s\n", error_string));
return NT_STATUS_NO_MEMORY;
}
+
+ /* This credential handle isn't useful for password authentication, so ensure nobody tries to do that */
+ cli_credentials_set_kerberos_state(session_info->credentials, CRED_MUST_USE_KERBEROS);
+
/* It has been taken from this place... */
gensec_gssapi_state->delegated_cred_handle = GSS_C_NO_CREDENTIAL;
}
return NT_STATUS_OK;
}
+static size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t data_size)
+{
+ struct gensec_gssapi_state *gensec_gssapi_state
+ = talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state);
+ NTSTATUS status;
+
+ if (gensec_gssapi_state->sig_size) {
+ return gensec_gssapi_state->sig_size;
+ }
+
+ if (gensec_gssapi_state->got_flags & GSS_C_CONF_FLAG) {
+ gensec_gssapi_state->sig_size = 45;
+ } else {
+ gensec_gssapi_state->sig_size = 37;
+ }
+
+ status = gensec_gssapi_init_lucid(gensec_gssapi_state);
+ if (!NT_STATUS_IS_OK(status)) {
+ return gensec_gssapi_state->sig_size;
+ }
+
+ if (gensec_gssapi_state->lucid->protocol == 1) {
+ if (gensec_gssapi_state->got_flags & GSS_C_CONF_FLAG) {
+ /*
+ * TODO: windows uses 76 here, but we don't know
+ * gss_wrap works with aes keys yet
+ */
+ gensec_gssapi_state->sig_size = 76;
+ } else {
+ gensec_gssapi_state->sig_size = 28;
+ }
+ } else if (gensec_gssapi_state->lucid->protocol == 0) {
+ switch (gensec_gssapi_state->lucid->rfc1964_kd.ctx_key.type) {
+ case KEYTYPE_DES:
+ case KEYTYPE_ARCFOUR:
+ case KEYTYPE_ARCFOUR_56:
+ if (gensec_gssapi_state->got_flags & GSS_C_CONF_FLAG) {
+ gensec_gssapi_state->sig_size = 45;
+ } else {
+ gensec_gssapi_state->sig_size = 37;
+ }
+ break;
+ case KEYTYPE_DES3:
+ if (gensec_gssapi_state->got_flags & GSS_C_CONF_FLAG) {
+ gensec_gssapi_state->sig_size = 57;
+ } else {
+ gensec_gssapi_state->sig_size = 49;
+ }
+ break;
+ }
+ }
+
+ return gensec_gssapi_state->sig_size;
+}
+
static const char *gensec_gssapi_krb5_oids[] = {
GENSEC_OID_KERBEROS5_OLD,
GENSEC_OID_KERBEROS5,
.wrap = gensec_gssapi_wrap,
.unwrap = gensec_gssapi_unwrap,
.have_feature = gensec_gssapi_have_feature,
- .enabled = False,
- .kerberos = True,
+ .enabled = false,
+ .kerberos = true,
.priority = GENSEC_GSSAPI
};
.update = gensec_gssapi_update,
.session_key = gensec_gssapi_session_key,
.session_info = gensec_gssapi_session_info,
+ .sig_size = gensec_gssapi_sig_size,
.sign_packet = gensec_gssapi_sign_packet,
.check_packet = gensec_gssapi_check_packet,
.seal_packet = gensec_gssapi_seal_packet,
.wrap = gensec_gssapi_wrap,
.unwrap = gensec_gssapi_unwrap,
.have_feature = gensec_gssapi_have_feature,
- .enabled = True,
- .kerberos = True,
+ .enabled = true,
+ .kerberos = true,
.priority = GENSEC_GSSAPI
};
.wrap = gensec_gssapi_wrap,
.unwrap = gensec_gssapi_unwrap,
.have_feature = gensec_gssapi_have_feature,
- .enabled = True,
- .kerberos = True,
+ .enabled = true,
+ .kerberos = true,
.priority = GENSEC_GSSAPI
};
-NTSTATUS gensec_gssapi_init(void)
+_PUBLIC_ NTSTATUS gensec_gssapi_init(void)
{
NTSTATUS ret;
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff