#include "includes.h"
#include "system/kerberos.h"
+#include "system/gssapi.h"
#include <tevent.h>
#include "auth/kerberos/kerberos.h"
#include "lib/socket/socket.h"
#include "system/network.h"
#include "param/param.h"
#include "libcli/resolve/resolve.h"
-
+#include "../lib/tsocket/tsocket.h"
+#include "krb5_init_context.h"
/*
context structure for operations on cldap packets
*/
struct packet_context *packet;
size_t partial_read;
-
+#ifdef SAMBA4_USES_HEIMDAL
krb5_krbhst_info *hi;
+#endif
};
-static krb5_error_code smb_krb5_context_destroy_1(struct smb_krb5_context *ctx)
+static krb5_error_code smb_krb5_context_destroy(struct smb_krb5_context *ctx)
{
+#ifdef SAMBA4_USES_HEIMDAL
+ if (ctx->pvt_log_data) {
+ /* Otherwise krb5_free_context will try and close what we
+ * have already free()ed */
+ krb5_set_warn_dest(ctx->krb5_context, NULL);
+ krb5_closelog(ctx->krb5_context,
+ (krb5_log_facility *)ctx->pvt_log_data);
+ }
+#endif
krb5_free_context(ctx->krb5_context);
return 0;
}
-static krb5_error_code smb_krb5_context_destroy_2(struct smb_krb5_context *ctx)
-{
- /* Otherwise krb5_free_context will try and close what we have already free()ed */
- krb5_set_warn_dest(ctx->krb5_context, NULL);
- krb5_closelog(ctx->krb5_context, ctx->logf);
- smb_krb5_context_destroy_1(ctx);
- return 0;
-}
-
+#ifdef SAMBA4_USES_HEIMDAL
/* We never close down the DEBUG system, and no need to unreference the use */
static void smb_krb5_debug_close(void *private_data) {
return;
}
+#endif
+#ifdef SAMBA4_USES_HEIMDAL
static void smb_krb5_debug_wrapper(const char *timestr, const char *msg, void *private_data)
{
DEBUG(3, ("Kerberos: %s\n", msg));
}
+#endif
+#ifdef SAMBA4_USES_HEIMDAL
/*
handle recv events on a smb_krb5 socket
*/
return;
}
- DEBUG(2,("Received smb_krb5 packet of length %d\n",
+ DEBUG(4,("Received smb_krb5 packet of length %d\n",
(int)blob.length));
talloc_steal(smb_krb5, blob.data);
}
}
-
krb5_error_code smb_krb5_send_and_recv_func(krb5_context context,
void *data,
krb5_krbhst_info *hi,
{
krb5_error_code ret;
NTSTATUS status;
- struct socket_address *remote_addr;
const char *name;
struct addrinfo *ai, *a;
struct smb_krb5_socket *smb_krb5;
- struct tevent_context *ev = talloc_get_type(data, struct tevent_context);
+ DATA_BLOB send_blob;
- DATA_BLOB send_blob = data_blob_const(send_buf->data, send_buf->length);
+ struct tevent_context *ev;
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+ if (!tmp_ctx) {
+ return ENOMEM;
+ }
+
+ if (!data) {
+ /* If no event context was available, then create one for this loop */
+ ev = samba_tevent_context_init(tmp_ctx);
+ if (!ev) {
+ talloc_free(tmp_ctx);
+ return ENOMEM;
+ }
+ } else {
+ ev = talloc_get_type_abort(data, struct tevent_context);
+ }
+
+ send_blob = data_blob_const(send_buf->data, send_buf->length);
ret = krb5_krbhst_get_addrinfo(context, hi, &ai);
if (ret) {
+ talloc_free(tmp_ctx);
return ret;
}
- for (a = ai; a; a = ai->ai_next) {
- smb_krb5 = talloc(NULL, struct smb_krb5_socket);
+ for (a = ai; a; a = a->ai_next) {
+ struct socket_address *remote_addr;
+ smb_krb5 = talloc(tmp_ctx, struct smb_krb5_socket);
if (!smb_krb5) {
+ talloc_free(tmp_ctx);
return ENOMEM;
}
smb_krb5->hi = hi;
break;
#endif
default:
- talloc_free(smb_krb5);
+ talloc_free(tmp_ctx);
return EINVAL;
}
status = socket_create(name, SOCKET_TYPE_STREAM, &smb_krb5->sock, 0);
break;
case KRB5_KRBHST_HTTP:
- talloc_free(smb_krb5);
+ talloc_free(tmp_ctx);
return EINVAL;
}
if (!NT_STATUS_IS_OK(status)) {
talloc_free(smb_krb5);
continue;
}
- talloc_free(remote_addr);
/* Setup the FDE, start listening for read events
* from the start (otherwise we may miss a socket
packet_send(smb_krb5->packet, smb_krb5->request);
break;
case KRB5_KRBHST_HTTP:
- talloc_free(smb_krb5);
+ talloc_free(tmp_ctx);
return EINVAL;
}
while ((NT_STATUS_IS_OK(smb_krb5->status)) && !smb_krb5->reply.length) {
if (tevent_loop_once(ev) != 0) {
- talloc_free(smb_krb5);
+ talloc_free(tmp_ctx);
return EINVAL;
}
+
+ /* After each and every event loop, reset the
+ * send_to_kdc pointers to what they were when
+ * we entered this loop. That way, if a
+ * nested event has invalidated them, we put
+ * it back before we return to the heimdal
+ * code */
+ ret = krb5_set_send_to_kdc_func(context,
+ smb_krb5_send_and_recv_func,
+ data);
+ if (ret != 0) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
}
if (NT_STATUS_EQUAL(smb_krb5->status, NT_STATUS_IO_TIMEOUT)) {
talloc_free(smb_krb5);
}
if (!NT_STATUS_IS_OK(smb_krb5->status)) {
- DEBUG(2,("Error reading smb_krb5 reply packet: %s\n", nt_errstr(smb_krb5->status)));
+ struct tsocket_address *addr = socket_address_to_tsocket_address(smb_krb5, remote_addr);
+ const char *addr_string = NULL;
+ if (addr) {
+ addr_string = tsocket_address_inet_addr_string(addr, smb_krb5);
+ } else {
+ addr_string = NULL;
+ }
+ DEBUG(2,("Error reading smb_krb5 reply packet: %s from %s\n", nt_errstr(smb_krb5->status),
+ addr_string));
talloc_free(smb_krb5);
continue;
}
ret = krb5_data_copy(recv_buf, smb_krb5->reply.data, smb_krb5->reply.length);
if (ret) {
- talloc_free(smb_krb5);
+ talloc_free(tmp_ctx);
return ret;
}
talloc_free(smb_krb5);
break;
}
+ talloc_free(tmp_ctx);
if (a) {
return 0;
}
return KRB5_KDC_UNREACH;
}
+#endif
-krb5_error_code smb_krb5_init_context(void *parent_ctx,
- struct tevent_context *ev,
- struct loadparm_context *lp_ctx,
- struct smb_krb5_context **smb_krb5_context)
+krb5_error_code
+smb_krb5_init_context_basic(TALLOC_CTX *tmp_ctx,
+ struct loadparm_context *lp_ctx,
+ krb5_context *_krb5_context)
{
krb5_error_code ret;
- TALLOC_CTX *tmp_ctx;
+#ifdef SAMBA4_USES_HEIMDAL
char **config_files;
const char *config_file, *realm;
+#endif
+ krb5_context krb5_ctx;
initialize_krb5_error_table();
- tmp_ctx = talloc_new(parent_ctx);
- *smb_krb5_context = talloc(tmp_ctx, struct smb_krb5_context);
-
- if (!*smb_krb5_context || !tmp_ctx) {
- talloc_free(tmp_ctx);
- return ENOMEM;
- }
-
- ret = krb5_init_context(&(*smb_krb5_context)->krb5_context);
+ ret = krb5_init_context(&krb5_ctx);
if (ret) {
DEBUG(1,("krb5_init_context failed (%s)\n",
error_message(ret)));
- talloc_free(tmp_ctx);
return ret;
}
- talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destroy_1);
-
- config_file = config_path(tmp_ctx, lp_ctx, "krb5.conf");
+ /* The MIT Kerberos build relies on using the system krb5.conf file.
+ * If you really want to use another file please set KRB5_CONFIG
+ * accordingly. */
+#ifdef SAMBA4_USES_HEIMDAL
+ config_file = lpcfg_config_path(tmp_ctx, lp_ctx, "krb5.conf");
if (!config_file) {
- talloc_free(tmp_ctx);
+ krb5_free_context(krb5_ctx);
return ENOMEM;
}
/* Use our local krb5.conf file by default */
- ret = krb5_prepend_config_files_default(config_file == NULL?"":config_file, &config_files);
+ ret = krb5_prepend_config_files_default(config_file, &config_files);
if (ret) {
DEBUG(1,("krb5_prepend_config_files_default failed (%s)\n",
- smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
- talloc_free(tmp_ctx);
+ smb_get_krb5_error_message(krb5_ctx, ret, tmp_ctx)));
+ krb5_free_context(krb5_ctx);
return ret;
}
- ret = krb5_set_config_files((*smb_krb5_context)->krb5_context,
- config_files);
+ ret = krb5_set_config_files(krb5_ctx, config_files);
krb5_free_config_files(config_files);
if (ret) {
DEBUG(1,("krb5_set_config_files failed (%s)\n",
- smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
- talloc_free(tmp_ctx);
+ smb_get_krb5_error_message(krb5_ctx, ret, tmp_ctx)));
+ krb5_free_context(krb5_ctx);
return ret;
}
- realm = lp_realm(lp_ctx);
+ realm = lpcfg_realm(lp_ctx);
if (realm != NULL) {
- ret = krb5_set_default_realm((*smb_krb5_context)->krb5_context, realm);
+ ret = krb5_set_default_realm(krb5_ctx, realm);
if (ret) {
DEBUG(1,("krb5_set_default_realm failed (%s)\n",
- smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
- talloc_free(tmp_ctx);
+ smb_get_krb5_error_message(krb5_ctx, ret, tmp_ctx)));
+ krb5_free_context(krb5_ctx);
return ret;
}
}
+#endif
+ *_krb5_context = krb5_ctx;
+ return 0;
+}
- /* TODO: Should we have a different name here? */
- ret = krb5_initlog((*smb_krb5_context)->krb5_context, "Samba", &(*smb_krb5_context)->logf);
+krb5_error_code smb_krb5_init_context(void *parent_ctx,
+ struct tevent_context *ev,
+ struct loadparm_context *lp_ctx,
+ struct smb_krb5_context **smb_krb5_context)
+{
+ krb5_error_code ret;
+ TALLOC_CTX *tmp_ctx;
+ krb5_context kctx;
+#ifdef SAMBA4_USES_HEIMDAL
+ krb5_log_facility *logf;
+#endif
+
+ initialize_krb5_error_table();
+
+ tmp_ctx = talloc_new(parent_ctx);
+ *smb_krb5_context = talloc_zero(tmp_ctx, struct smb_krb5_context);
+
+ if (!*smb_krb5_context || !tmp_ctx) {
+ talloc_free(tmp_ctx);
+ return ENOMEM;
+ }
+ ret = smb_krb5_init_context_basic(tmp_ctx, lp_ctx, &kctx);
if (ret) {
- DEBUG(1,("krb5_initlog failed (%s)\n",
- smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
+ DEBUG(1,("smb_krb5_context_init_basic failed (%s)\n",
+ error_message(ret)));
talloc_free(tmp_ctx);
return ret;
}
+ (*smb_krb5_context)->krb5_context = kctx;
- talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destroy_2);
+ talloc_set_destructor(*smb_krb5_context, smb_krb5_context_destroy);
+
+#ifdef SAMBA4_USES_HEIMDAL
+ /* TODO: Should we have a different name here? */
+ ret = krb5_initlog(kctx, "Samba", &logf);
- ret = krb5_addlog_func((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf, 0 /* min */, -1 /* max */,
- smb_krb5_debug_wrapper, smb_krb5_debug_close, NULL);
if (ret) {
- DEBUG(1,("krb5_addlog_func failed (%s)\n",
- smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
+ DEBUG(1,("krb5_initlog failed (%s)\n",
+ smb_get_krb5_error_message(kctx, ret, tmp_ctx)));
talloc_free(tmp_ctx);
return ret;
}
- krb5_set_warn_dest((*smb_krb5_context)->krb5_context, (*smb_krb5_context)->logf);
+ (*smb_krb5_context)->pvt_log_data = logf;
- /* Set use of our socket lib */
- ret = krb5_set_send_to_kdc_func((*smb_krb5_context)->krb5_context,
- smb_krb5_send_and_recv_func,
- ev);
+ ret = krb5_addlog_func(kctx, logf, 0 /* min */, -1 /* max */,
+ smb_krb5_debug_wrapper,
+ smb_krb5_debug_close, NULL);
if (ret) {
- DEBUG(1,("krb5_set_send_recv_func failed (%s)\n",
- smb_get_krb5_error_message((*smb_krb5_context)->krb5_context, ret, tmp_ctx)));
+ DEBUG(1,("krb5_addlog_func failed (%s)\n",
+ smb_get_krb5_error_message(kctx, ret, tmp_ctx)));
talloc_free(tmp_ctx);
return ret;
}
+ krb5_set_warn_dest(kctx, logf);
+ /* Set use of our socket lib */
+ if (ev) {
+ struct tevent_context *previous_ev;
+ ret = smb_krb5_context_set_event_ctx(*smb_krb5_context,
+ ev, &previous_ev);
+ if (ret) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ }
+
+ /* Set options in kerberos */
+
+ krb5_set_dns_canonicalize_hostname(kctx,
+ lpcfg_parm_bool(lp_ctx, NULL, "krb5",
+ "set_dns_canonicalize", false));
+#endif
talloc_steal(parent_ctx, *smb_krb5_context);
talloc_free(tmp_ctx);
- /* Set options in kerberos */
+ return 0;
+}
+
+#ifdef SAMBA4_USES_HEIMDAL
+krb5_error_code smb_krb5_context_set_event_ctx(struct smb_krb5_context *smb_krb5_context,
+ struct tevent_context *ev,
+ struct tevent_context **previous_ev)
+{
+ int ret;
+ if (!ev) {
+ return EINVAL;
+ }
- krb5_set_dns_canonicalize_hostname((*smb_krb5_context)->krb5_context,
- lp_parm_bool(lp_ctx, NULL, "krb5", "set_dns_canonicalize", false));
+ *previous_ev = smb_krb5_context->current_ev;
+ smb_krb5_context->current_ev = talloc_reference(smb_krb5_context, ev);
+ if (!smb_krb5_context->current_ev) {
+ return ENOMEM;
+ }
+
+ /* Set use of our socket lib */
+ ret = krb5_set_send_to_kdc_func(smb_krb5_context->krb5_context,
+ smb_krb5_send_and_recv_func,
+ ev);
+ if (ret) {
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+ DEBUG(1,("krb5_set_send_recv_func failed (%s)\n",
+ smb_get_krb5_error_message(smb_krb5_context->krb5_context, ret, tmp_ctx)));
+ talloc_free(tmp_ctx);
+ talloc_unlink(smb_krb5_context, smb_krb5_context->current_ev);
+ smb_krb5_context->current_ev = NULL;
+ return ret;
+ }
return 0;
}
+krb5_error_code smb_krb5_context_remove_event_ctx(struct smb_krb5_context *smb_krb5_context,
+ struct tevent_context *previous_ev,
+ struct tevent_context *ev)
+{
+ int ret;
+ talloc_unlink(smb_krb5_context, ev);
+ /* If there was a mismatch with things happening on a stack, then don't wipe things */
+ smb_krb5_context->current_ev = previous_ev;
+ /* Set use of our socket lib */
+ ret = krb5_set_send_to_kdc_func(smb_krb5_context->krb5_context,
+ smb_krb5_send_and_recv_func,
+ previous_ev);
+ if (ret) {
+ TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+ DEBUG(1,("krb5_set_send_recv_func failed (%s)\n",
+ smb_get_krb5_error_message(smb_krb5_context->krb5_context, ret, tmp_ctx)));
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+ return 0;
+}
+#endif
git.samba.org / kai / samba-autobuild / .git / blobdiff