*/
#include "includes.h"
+#include "lib/util/server_id.h"
#include "messages.h"
#include "util_tdb.h"
-
-#ifdef CLUSTER_SUPPORT
-
-/*
- * It is not possible to include ctdb.h and tdb_compat.h (included via
- * some other include above) without warnings. This fixes those
- * warnings.
- */
-
-#ifdef typesafe_cb
-#undef typesafe_cb
-#endif
-
-#ifdef typesafe_cb_preargs
-#undef typesafe_cb_preargs
-#endif
-
-#ifdef typesafe_cb_postargs
-#undef typesafe_cb_postargs
-#endif
-
-#include "ctdb.h"
-#include "ctdb_private.h"
+#include "lib/util/iov_buf.h"
+#include "lib/messages_util.h"
#include "ctdbd_conn.h"
+#include "lib/cluster_support.h"
struct messaging_ctdbd_context {
struct ctdbd_connection *conn;
+ struct tevent_fd *fde;
};
/*
if (global_ctdb_connection_pid == 0 &&
global_ctdbd_connection == NULL) {
- struct event_context *ev;
+ struct tevent_context *ev;
struct messaging_context *msg;
ev = samba_tevent_context_init(NULL);
if (!ev) {
DEBUG(0,("samba_tevent_context_init failed\n"));
+ return NULL;
}
msg = messaging_init(NULL, ev);
if (global_ctdb_connection_pid != getpid()) {
DEBUG(0,("messaging_ctdbd_connection():"
- "valid for pid[%d] but it's [%d]\n",
- global_ctdb_connection_pid, getpid()));
+ "valid for pid[%jd] but it's [%jd]\n",
+ (intmax_t)global_ctdb_connection_pid,
+ (intmax_t)getpid()));
smb_panic("messaging_ctdbd_connection() invalid process\n");
}
return global_ctdbd_connection;
}
-static NTSTATUS messaging_ctdb_send(struct messaging_context *msg_ctx,
- struct server_id pid, int msg_type,
- const DATA_BLOB *data,
- struct messaging_backend *backend)
+static int messaging_ctdb_send(struct server_id src,
+ struct server_id pid, int msg_type,
+ const struct iovec *iov, int iovlen,
+ const int *fds, size_t num_fds,
+ struct messaging_backend *backend)
{
struct messaging_ctdbd_context *ctx = talloc_get_type_abort(
backend->private_data, struct messaging_ctdbd_context);
+ uint8_t hdr[MESSAGE_HDR_LENGTH];
+ struct iovec iov2[iovlen+1];
- struct messaging_rec msg;
+ if (num_fds > 0) {
+ return ENOSYS;
+ }
- msg.msg_version = MESSAGE_VERSION;
- msg.msg_type = msg_type;
- msg.dest = pid;
- msg.src = msg_ctx->id;
- msg.buf = *data;
+ message_hdr_put(hdr, msg_type, src, pid);
+ iov2[0] = (struct iovec){ .iov_base = hdr, .iov_len = sizeof(hdr) };
+ memcpy(&iov2[1], iov, iovlen * sizeof(*iov));
- return ctdbd_messaging_send(ctx->conn, pid.vnn, pid.pid, &msg);
+ return ctdbd_messaging_send_iov(ctx->conn, pid.vnn, pid.pid,
+ iov2, iovlen+1);
}
static int messaging_ctdbd_destructor(struct messaging_ctdbd_context *ctx)
return 0;
}
-NTSTATUS messaging_ctdbd_init(struct messaging_context *msg_ctx,
- TALLOC_CTX *mem_ctx,
- struct messaging_backend **presult)
+static int messaging_ctdb_recv(
+ uint32_t src_vnn, uint32_t dst_vnn, uint64_t dst_srvid,
+ const uint8_t *msg, size_t msg_len, void *private_data)
{
- struct messaging_backend *result;
- struct messaging_ctdbd_context *ctx;
- NTSTATUS status;
+ struct messaging_context *msg_ctx = talloc_get_type_abort(
+ private_data, struct messaging_context);
+ struct server_id me = messaging_server_id(msg_ctx);
+ int ret;
+ struct iovec iov;
+ struct server_id src, dst;
+ enum messaging_type msg_type;
+ struct server_id_buf idbuf;
+
+ if (msg_len < MESSAGE_HDR_LENGTH) {
+ DEBUG(1, ("%s: message too short: %u\n", __func__,
+ (unsigned)msg_len));
+ return 0;
+ }
- if (!(result = talloc(mem_ctx, struct messaging_backend))) {
- DEBUG(0, ("talloc failed\n"));
- return NT_STATUS_NO_MEMORY;
+ message_hdr_get(&msg_type, &src, &dst, msg);
+
+ iov = (struct iovec) {
+ .iov_base = discard_const_p(uint8_t, msg) + MESSAGE_HDR_LENGTH,
+ .iov_len = msg_len - MESSAGE_HDR_LENGTH
+ };
+
+ DEBUG(10, ("%s: Received message 0x%x len %u from %s\n",
+ __func__, (unsigned)msg_type, (unsigned)msg_len,
+ server_id_str_buf(src, &idbuf)));
+
+ if (!server_id_same_process(&me, &dst)) {
+ struct server_id_buf id1, id2;
+
+ DEBUG(10, ("%s: I'm %s, ignoring msg to %s\n", __func__,
+ server_id_str_buf(me, &id1),
+ server_id_str_buf(dst, &id2)));
+ return 0;
}
- if (!(ctx = talloc(result, struct messaging_ctdbd_context))) {
- DEBUG(0, ("talloc failed\n"));
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
+ /*
+ * Go through the event loop
+ */
+
+ ret = messaging_send_iov_from(msg_ctx, src, dst, msg_type,
+ &iov, 1, NULL, 0);
+
+ if (ret != 0) {
+ DEBUG(10, ("%s: messaging_send_iov_from failed: %s\n",
+ __func__, strerror(ret)));
}
- status = ctdbd_messaging_connection(ctx, &ctx->conn);
+ return 0;
+}
+
+static void messaging_ctdbd_readable(struct tevent_context *ev,
+ struct tevent_fd *fde,
+ uint16_t flags,
+ void *private_data)
+{
+ struct ctdbd_connection *conn = talloc_get_type_abort(
+ private_data, struct ctdbd_connection);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("ctdbd_messaging_connection failed: %s\n",
- nt_errstr(status)));
- TALLOC_FREE(result);
- return status;
+ if ((flags & TEVENT_FD_READ) == 0) {
+ return;
+ }
+ ctdbd_socket_readable(conn);
+}
+
+static int messaging_ctdbd_init_internal(struct messaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct messaging_ctdbd_context *ctx,
+ bool reinit)
+{
+ struct tevent_context *ev;
+ int ret, ctdb_fd;
+
+ if (reinit) {
+ TALLOC_FREE(ctx->fde);
+
+ ret = ctdbd_reinit_connection(ctx,
+ lp_ctdbd_socket(),
+ lp_ctdb_timeout(),
+ ctx->conn);
+ if (ret != 0) {
+ DBG_ERR("ctdbd_reinit_connection failed: %s\n",
+ strerror(ret));
+ return ret;
+ }
+ } else {
+ ret = ctdbd_init_connection(ctx,
+ lp_ctdbd_socket(),
+ lp_ctdb_timeout(),
+ &ctx->conn);
+ if (ret != 0) {
+ DBG_ERR("ctdbd_init_connection failed: %s\n",
+ strerror(ret));
+ return ret;
+ }
}
- status = ctdbd_register_msg_ctx(ctx->conn, msg_ctx);
+ ret = register_with_ctdbd(ctx->conn, MSG_SRVID_SAMBA, NULL, NULL);
+ if (ret != 0) {
+ DBG_DEBUG("Could not register MSG_SRVID_SAMBA: %s\n",
+ strerror(ret));
+ return ret;
+ }
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("ctdbd_register_msg_ctx failed: %s\n",
- nt_errstr(status)));
- TALLOC_FREE(result);
- return status;
+ ret = register_with_ctdbd(ctx->conn, getpid(),
+ messaging_ctdb_recv, msg_ctx);
+ if (ret != 0) {
+ DEBUG(10, ("register_with_ctdbd failed: %s\n",
+ strerror(ret)));
+ return ret;
+ }
+
+ ctdb_fd = ctdbd_conn_get_fd(ctx->conn);
+ ev = messaging_tevent_context(msg_ctx);
+
+ ctx->fde = tevent_add_fd(ev, ctx, ctdb_fd, TEVENT_FD_READ,
+ messaging_ctdbd_readable, ctx->conn);
+ if (ctx->fde == NULL) {
+ return ENOMEM;
}
global_ctdb_connection_pid = getpid();
set_my_vnn(ctdbd_vnn(ctx->conn));
+ return 0;
+}
+
+int messaging_ctdbd_init(struct messaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct messaging_backend **presult)
+{
+ struct messaging_backend *result;
+ struct messaging_ctdbd_context *ctx;
+ int ret;
+
+ if (!(result = talloc(mem_ctx, struct messaging_backend))) {
+ DEBUG(0, ("talloc failed\n"));
+ return ENOMEM;
+ }
+
+ if (!(ctx = talloc(result, struct messaging_ctdbd_context))) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(result);
+ return ENOMEM;
+ }
+
+ ret = messaging_ctdbd_init_internal(msg_ctx, mem_ctx, ctx, false);
+ if (ret != 0) {
+ TALLOC_FREE(result);
+ return ret;
+ }
+
result->send_fn = messaging_ctdb_send;
result->private_data = (void *)ctx;
*presult = result;
- return NT_STATUS_OK;
+ return 0;
}
-#else
-
-NTSTATUS messaging_ctdbd_init(struct messaging_context *msg_ctx,
- TALLOC_CTX *mem_ctx,
- struct messaging_backend **presult)
+int messaging_ctdbd_reinit(struct messaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct messaging_backend *backend)
{
- return NT_STATUS_NOT_IMPLEMENTED;
-}
+ struct messaging_ctdbd_context *ctx = talloc_get_type_abort(
+ backend->private_data, struct messaging_ctdbd_context);
+ int ret;
-struct ctdbd_connection *messaging_ctdbd_connection(void)
-{
- return NULL;
-}
+ ret = messaging_ctdbd_init_internal(msg_ctx, mem_ctx, ctx, true);
+ if (ret != 0) {
+ return ret;
+ }
-#endif
+ return 0;
+}
git.samba.org / kai / samba-autobuild / .git / blobdiff