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 "system/kerberos.h"
#include "auth/kerberos/kerberos.h"
-#include "librpc/gen_ndr/ndr_krb5pac.h"
+#include "librpc/gen_ndr/krb5pac.h"
#include "auth/auth.h"
#include "lib/ldb/include/ldb.h"
#include "auth/auth_sam.h"
#include "system/network.h"
#include "lib/socket/socket.h"
+#include "librpc/rpc/dcerpc.h"
+#include "auth/credentials/credentials.h"
+#include "auth/credentials/credentials_krb5.h"
+#include "auth/gensec/gensec.h"
+#include "param/param.h"
enum GENSEC_KRB5_STATE {
GENSEC_KRB5_SERVER_START,
krb5_data enc_ticket;
krb5_keyblock *keyblock;
krb5_ticket *ticket;
- BOOL gssapi;
+ bool gssapi;
};
-static int gensec_krb5_destroy(void *ptr)
+static int gensec_krb5_destroy(struct gensec_krb5_state *gensec_krb5_state)
{
- struct gensec_krb5_state *gensec_krb5_state = ptr;
-
if (!gensec_krb5_state->smb_krb5_context) {
/* We can't clean anything else up unless we started up this far */
return 0;
gensec_krb5_state->keyblock = NULL;
gensec_krb5_state->session_key = data_blob(NULL, 0);
gensec_krb5_state->pac = data_blob(NULL, 0);
- gensec_krb5_state->gssapi = False;
+ gensec_krb5_state->gssapi = false;
talloc_set_destructor(gensec_krb5_state, gensec_krb5_destroy);
- if (cli_credentials_get_krb5_context(creds, &gensec_krb5_state->smb_krb5_context)) {
+ if (cli_credentials_get_krb5_context(creds, gensec_security->lp_ctx, &gensec_krb5_state->smb_krb5_context)) {
talloc_free(gensec_krb5_state);
return NT_STATUS_INTERNAL_ERROR;
}
}
}
- peer_addr = gensec_get_my_addr(gensec_security);
+ peer_addr = gensec_get_peer_addr(gensec_security);
if (peer_addr && peer_addr->sockaddr) {
ret = krb5_sockaddr2address(gensec_krb5_state->smb_krb5_context->krb5_context,
peer_addr->sockaddr, &peer_krb5_addr);
return nt_status;
}
- gensec_krb5_state = gensec_security->private_data;
+ gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
gensec_krb5_state->state_position = GENSEC_KRB5_SERVER_START;
return NT_STATUS_OK;
if (NT_STATUS_IS_OK(nt_status)) {
struct gensec_krb5_state *gensec_krb5_state;
- gensec_krb5_state = gensec_security->private_data;
- gensec_krb5_state->gssapi = True;
+ gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
+ gensec_krb5_state->gssapi = true;
}
return nt_status;
}
DEBUG(2, ("Cannot do krb5 to an IP address"));
return NT_STATUS_INVALID_PARAMETER;
}
- if (strequal(hostname, "localhost")) {
+ if (strcmp(hostname, "localhost") == 0) {
DEBUG(2, ("krb5 to 'localhost' does not make sense"));
return NT_STATUS_INVALID_PARAMETER;
}
return nt_status;
}
- gensec_krb5_state = gensec_security->private_data;
+ gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
gensec_krb5_state->state_position = GENSEC_KRB5_CLIENT_START;
- ret = cli_credentials_get_ccache(gensec_get_credentials(gensec_security), &ccache_container);
- if (ret) {
- DEBUG(1,("gensec_krb5_start: cli_credentials_get_ccache failed: %s\n",
- error_message(ret)));
+ principal = gensec_get_target_principal(gensec_security);
+
+ ret = cli_credentials_get_ccache(gensec_get_credentials(gensec_security), gensec_security->lp_ctx, &ccache_container);
+ 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));
+ return NT_STATUS_INVALID_PARAMETER; /* Make SPNEGO ignore us, we can't go any further here */
+ default:
+ DEBUG(1, ("gensec_krb5_start: Aquiring initiator credentials failed: %s\n", error_message(ret)));
return NT_STATUS_UNSUCCESSFUL;
}
-
in_data.length = 0;
- principal = gensec_get_target_principal(gensec_security);
- if (principal && lp_client_use_spnego_principal()) {
+ if (principal && lp_client_use_spnego_principal(gensec_security->lp_ctx)) {
krb5_principal target_principal;
ret = krb5_parse_name(gensec_krb5_state->smb_krb5_context->krb5_context, principal,
&target_principal);
{
DEBUG(3, ("kerberos (mk_req) failed: %s\n",
smb_get_krb5_error_message(gensec_krb5_state->smb_krb5_context->krb5_context, ret, gensec_krb5_state)));
- /* fall down to remaining code */
+ /*fall through*/
}
-
/* just don't print a message for these really ordinary messages */
case KRB5_FCC_NOFILE:
case KRB5_CC_NOTFOUND:
if (NT_STATUS_IS_OK(nt_status)) {
struct gensec_krb5_state *gensec_krb5_state;
- gensec_krb5_state = gensec_security->private_data;
- gensec_krb5_state->gssapi = True;
+ gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
+ gensec_krb5_state->gssapi = true;
}
return nt_status;
}
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
{
- struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
+ struct gensec_krb5_state *gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
krb5_error_code ret = 0;
NTSTATUS nt_status;
if (ret) {
DEBUG(1,("krb5_rd_rep (mutual authentication) failed (%s)\n",
smb_get_krb5_error_message(gensec_krb5_state->smb_krb5_context->krb5_context, ret, out_mem_ctx)));
- dump_data_pw("Mutual authentication message:\n", inbuf.data, inbuf.length);
+ dump_data_pw("Mutual authentication message:\n", (uint8_t *)inbuf.data, inbuf.length);
nt_status = NT_STATUS_ACCESS_DENIED;
} else {
*out = data_blob(NULL, 0);
{
DATA_BLOB unwrapped_in;
DATA_BLOB unwrapped_out = data_blob(NULL, 0);
+ krb5_data inbuf, outbuf;
uint8_t tok_id[2];
+ struct keytab_container *keytab;
+ krb5_principal server_in_keytab;
if (!in.data) {
return NT_STATUS_INVALID_PARAMETER;
}
+ /* Grab the keytab, however generated */
+ ret = cli_credentials_get_keytab(gensec_get_credentials(gensec_security), gensec_security->lp_ctx, &keytab);
+ if (ret) {
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ /* This ensures we lookup the correct entry in that keytab */
+ ret = principal_from_credentials(out_mem_ctx, gensec_get_credentials(gensec_security),
+ gensec_krb5_state->smb_krb5_context,
+ &server_in_keytab);
+
+ if (ret) {
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
/* Parse the GSSAPI wrapping, if it's there... (win2k3 allows it to be omited) */
if (gensec_krb5_state->gssapi
&& gensec_gssapi_parse_krb5_wrap(out_mem_ctx, &in, &unwrapped_in, tok_id)) {
- nt_status = ads_verify_ticket(out_mem_ctx,
- gensec_krb5_state->smb_krb5_context,
- &gensec_krb5_state->auth_context,
- gensec_get_credentials(gensec_security),
- gensec_get_target_service(gensec_security), &unwrapped_in,
- &gensec_krb5_state->ticket, &unwrapped_out,
- &gensec_krb5_state->keyblock);
+ inbuf.data = unwrapped_in.data;
+ inbuf.length = unwrapped_in.length;
} else {
- /* TODO: check the tok_id */
- nt_status = ads_verify_ticket(out_mem_ctx,
- gensec_krb5_state->smb_krb5_context,
- &gensec_krb5_state->auth_context,
- gensec_get_credentials(gensec_security),
- gensec_get_target_service(gensec_security),
- &in,
- &gensec_krb5_state->ticket, &unwrapped_out,
- &gensec_krb5_state->keyblock);
+ inbuf.data = in.data;
+ inbuf.length = in.length;
}
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
+ ret = smb_rd_req_return_stuff(gensec_krb5_state->smb_krb5_context->krb5_context,
+ &gensec_krb5_state->auth_context,
+ &inbuf, keytab->keytab, server_in_keytab,
+ &outbuf,
+ &gensec_krb5_state->ticket,
+ &gensec_krb5_state->keyblock);
- if (NT_STATUS_IS_OK(nt_status)) {
- gensec_krb5_state->state_position = GENSEC_KRB5_DONE;
- /* wrap that up in a nice GSS-API wrapping */
- if (gensec_krb5_state->gssapi) {
- *out = gensec_gssapi_gen_krb5_wrap(out_mem_ctx, &unwrapped_out, TOK_ID_KRB_AP_REP);
- } else {
- *out = unwrapped_out;
- }
+ if (ret) {
+ return NT_STATUS_LOGON_FAILURE;
}
- return nt_status;
+ unwrapped_out.data = (uint8_t *)outbuf.data;
+ unwrapped_out.length = outbuf.length;
+ gensec_krb5_state->state_position = GENSEC_KRB5_DONE;
+ /* wrap that up in a nice GSS-API wrapping */
+ if (gensec_krb5_state->gssapi) {
+ *out = gensec_gssapi_gen_krb5_wrap(out_mem_ctx, &unwrapped_out, TOK_ID_KRB_AP_REP);
+ } else {
+ *out = data_blob_talloc(out_mem_ctx, outbuf.data, outbuf.length);
+ }
+ krb5_data_free(&outbuf);
+ return NT_STATUS_OK;
}
case GENSEC_KRB5_DONE:
static NTSTATUS gensec_krb5_session_key(struct gensec_security *gensec_security,
DATA_BLOB *session_key)
{
- struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
+ struct gensec_krb5_state *gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
krb5_context context = gensec_krb5_state->smb_krb5_context->krb5_context;
krb5_auth_context auth_context = gensec_krb5_state->auth_context;
krb5_keyblock *skey;
struct auth_session_info **_session_info)
{
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
- struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
+ struct gensec_krb5_state *gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
krb5_context context = gensec_krb5_state->smb_krb5_context->krb5_context;
struct auth_serversupplied_info *server_info = NULL;
struct auth_session_info *session_info = NULL;
struct PAC_LOGON_INFO *logon_info;
krb5_principal client_principal;
+ char *principal_string;
DATA_BLOB pac;
krb5_data pac_data;
return NT_STATUS_NO_MEMORY;
}
+ ret = krb5_ticket_get_client(context, gensec_krb5_state->ticket, &client_principal);
+ if (ret) {
+ DEBUG(5, ("krb5_ticket_get_client failed to get cleint principal: %s\n",
+ smb_get_krb5_error_message(context,
+ ret, mem_ctx)));
+ talloc_free(mem_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ ret = krb5_unparse_name(gensec_krb5_state->smb_krb5_context->krb5_context,
+ client_principal, &principal_string);
+ if (ret) {
+ DEBUG(1, ("Unable to parse client principal: %s\n",
+ smb_get_krb5_error_message(context,
+ ret, mem_ctx)));
+ talloc_free(mem_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
ret = krb5_ticket_get_authorization_data_type(context, gensec_krb5_state->ticket,
KRB5_AUTHDATA_WIN2K_PAC,
&pac_data);
- if (ret) {
+ if (ret && lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec", "require_pac", false)) {
+ DEBUG(1, ("Unable to find PAC in ticket from %s, failing to allow access: %s \n",
+ principal_string,
+ smb_get_krb5_error_message(context,
+ ret, mem_ctx)));
+ krb5_free_principal(context, client_principal);
+ free(principal_string);
+ return NT_STATUS_ACCESS_DENIED;
+ } else if (ret) {
+ /* NO pac */
DEBUG(5, ("krb5_ticket_get_authorization_data_type failed to find PAC: %s\n",
smb_get_krb5_error_message(context,
ret, mem_ctx)));
+ nt_status = sam_get_server_info_principal(mem_ctx, gensec_security->lp_ctx, principal_string,
+ &server_info);
+ krb5_free_principal(context, client_principal);
+ free(principal_string);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(mem_ctx);
+ return nt_status;
+ }
} else {
+ /* Found pac */
+ union netr_Validation validation;
+ free(principal_string);
+
pac = data_blob_talloc(mem_ctx, pac_data.data, pac_data.length);
if (!pac.data) {
+ krb5_free_principal(context, client_principal);
talloc_free(mem_ctx);
return NT_STATUS_NO_MEMORY;
}
- ret = krb5_ticket_get_client(context, gensec_krb5_state->ticket, &client_principal);
- if (ret) {
- DEBUG(5, ("krb5_ticket_get_client failed to get cleint principal: %s\n",
- smb_get_krb5_error_message(context,
- ret, mem_ctx)));
- talloc_free(mem_ctx);
- return NT_STATUS_NO_MEMORY;
- }
-
/* decode and verify the pac */
- nt_status = kerberos_pac_logon_info(gensec_krb5_state, &logon_info, pac,
+ nt_status = kerberos_pac_logon_info(gensec_krb5_state,
+ lp_iconv_convenience(gensec_security->lp_ctx),
+ &logon_info, pac,
gensec_krb5_state->smb_krb5_context->krb5_context,
NULL, gensec_krb5_state->keyblock,
client_principal,
gensec_krb5_state->ticket->ticket.authtime, NULL);
krb5_free_principal(context, client_principal);
- if (NT_STATUS_IS_OK(nt_status)) {
- union netr_Validation validation;
- validation.sam3 = &logon_info->info3;
- nt_status = make_server_info_netlogon_validation(mem_ctx,
- NULL,
- 3, &validation,
- &server_info);
- }
- }
-
-
-
- /* IF we have the PAC - otherwise we need to get this
- * data from elsewere - local ldb, or (TODO) lookup of some
- * kind...
- */
- if (!NT_STATUS_IS_OK(nt_status)) {
- /* NO pac, or can't parse or verify it */
- char *principal_string;
- ret = krb5_ticket_get_client(context, gensec_krb5_state->ticket, &client_principal);
- if (ret) {
- DEBUG(5, ("krb5_ticket_get_client failed to get cleint principal: %s\n",
- smb_get_krb5_error_message(context,
- ret, mem_ctx)));
- talloc_free(mem_ctx);
- return NT_STATUS_NO_MEMORY;
- }
-
- ret = krb5_unparse_name(gensec_krb5_state->smb_krb5_context->krb5_context,
- client_principal, &principal_string);
- krb5_free_principal(context, client_principal);
- if (ret) {
+ if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
- return NT_STATUS_NO_MEMORY;
+ return nt_status;
}
- nt_status = sam_get_server_info_principal(mem_ctx, principal_string,
- &server_info);
- free(principal_string);
-
+ validation.sam3 = &logon_info->info3;
+ nt_status = make_server_info_netlogon_validation(mem_ctx,
+ NULL,
+ 3, &validation,
+ &server_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
return nt_status;
}
/* references the server_info into the session_info */
- nt_status = auth_generate_session_info(mem_ctx, server_info, &session_info);
+ nt_status = auth_generate_session_info(mem_ctx, gensec_security->lp_ctx, server_info, &session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(mem_ctx);
const DATA_BLOB *in,
DATA_BLOB *out)
{
- struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
+ struct gensec_krb5_state *gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
krb5_context context = gensec_krb5_state->smb_krb5_context->krb5_context;
krb5_auth_context auth_context = gensec_krb5_state->auth_context;
krb5_error_code ret;
const DATA_BLOB *in,
DATA_BLOB *out)
{
- struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
+ struct gensec_krb5_state *gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
krb5_context context = gensec_krb5_state->smb_krb5_context->krb5_context;
krb5_auth_context auth_context = gensec_krb5_state->auth_context;
krb5_error_code ret;
return NT_STATUS_OK;
}
-static BOOL gensec_krb5_have_feature(struct gensec_security *gensec_security,
+static bool gensec_krb5_have_feature(struct gensec_security *gensec_security,
uint32_t feature)
{
- struct gensec_krb5_state *gensec_krb5_state = gensec_security->private_data;
+ struct gensec_krb5_state *gensec_krb5_state = (struct gensec_krb5_state *)gensec_security->private_data;
if (feature & GENSEC_FEATURE_SESSION_KEY) {
- return True;
+ return true;
}
if (!gensec_krb5_state->gssapi &&
(feature & GENSEC_FEATURE_SEAL)) {
- return True;
+ return true;
}
- return False;
+ return false;
}
static const char *gensec_krb5_oids[] = {
static const struct gensec_security_ops gensec_fake_gssapi_krb5_security_ops = {
.name = "fake_gssapi_krb5",
- .sasl_name = "GSSAPI",
.auth_type = DCERPC_AUTH_TYPE_KRB5,
.oid = gensec_krb5_oids,
.client_start = gensec_fake_gssapi_krb5_client_start,
.session_key = gensec_krb5_session_key,
.session_info = gensec_krb5_session_info,
.have_feature = gensec_krb5_have_feature,
- .enabled = False,
- .kerberos = True
+ .enabled = false,
+ .kerberos = true,
+ .priority = GENSEC_KRB5
};
static const struct gensec_security_ops gensec_krb5_security_ops = {
.have_feature = gensec_krb5_have_feature,
.wrap = gensec_krb5_wrap,
.unwrap = gensec_krb5_unwrap,
- .enabled = True,
- .kerberos = True
+ .enabled = true,
+ .kerberos = true,
+ .priority = GENSEC_KRB5
};
-NTSTATUS gensec_krb5_init(void)
+_PUBLIC_ NTSTATUS gensec_krb5_init(void)
{
NTSTATUS ret;
+ auth_init();
+
ret = gensec_register(&gensec_krb5_security_ops);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(0,("Failed to register '%s' gensec backend!\n",
git.samba.org / jelmer / samba4-debian.git / blobdiff