Samba internal messaging functions
Copyright (C) 2007 by Volker Lendecke
Copyright (C) 2007 by Andrew Tridgell
-
+
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 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "util_tdb.h"
+#include "serverid.h"
+#include "ctdbd_conn.h"
#ifdef CLUSTER_SUPPORT
-#include "librpc/gen_ndr/messaging.h"
-#include "librpc/gen_ndr/ndr_messaging.h"
+#include "ctdb_packet.h"
+#include "messages.h"
+
+/*
+ * 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
/* paths to these include files come from --with-ctdb= in configure */
+
#include "ctdb.h"
#include "ctdb_private.h"
struct ctdbd_connection {
struct messaging_context *msg_ctx;
- uint32 reqid;
- uint32 our_vnn;
- uint64 rand_srvid;
- struct packet_context *pkt;
+ uint32_t reqid;
+ uint32_t our_vnn;
+ uint64_t rand_srvid;
+ struct ctdb_packet_context *pkt;
struct fd_event *fde;
-
+
void (*release_ip_handler)(const char *ip_addr, void *private_data);
void *release_ip_priv;
};
+static uint32_t ctdbd_next_reqid(struct ctdbd_connection *conn)
+{
+ conn->reqid += 1;
+ if (conn->reqid == 0) {
+ conn->reqid += 1;
+ }
+ return conn->reqid;
+}
+
static NTSTATUS ctdbd_control(struct ctdbd_connection *conn,
- uint32_t vnn, uint32 opcode,
- uint64_t srvid, TDB_DATA data,
+ uint32_t vnn, uint32_t opcode,
+ uint64_t srvid, uint32_t flags, TDB_DATA data,
TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
int *cstatus);
a core file. We need to release this process id immediately
so that someone else can take over without getting sharing
violations */
- _exit(0);
+ _exit(1);
}
/*
*/
static void ctdb_packet_dump(struct ctdb_req_header *hdr)
{
- if (DEBUGLEVEL < 10) {
+ if (DEBUGLEVEL < 11) {
return;
}
- DEBUGADD(10, ("len=%d, magic=%x, vers=%d, gen=%d, op=%d, reqid=%d\n",
+ DEBUGADD(11, ("len=%d, magic=%x, vers=%d, gen=%d, op=%d, reqid=%d\n",
(int)hdr->length, (int)hdr->ctdb_magic,
(int)hdr->ctdb_version, (int)hdr->generation,
(int)hdr->operation, (int)hdr->reqid));
/*
* Register a srvid with ctdbd
*/
-static NTSTATUS register_with_ctdbd(struct ctdbd_connection *conn,
- uint64_t srvid)
+NTSTATUS register_with_ctdbd(struct ctdbd_connection *conn, uint64_t srvid)
{
int cstatus;
return ctdbd_control(conn, CTDB_CURRENT_NODE,
- CTDB_CONTROL_REGISTER_SRVID, srvid,
+ CTDB_CONTROL_REGISTER_SRVID, srvid, 0,
tdb_null, NULL, NULL, &cstatus);
}
/*
* get our vnn from the cluster
*/
-static NTSTATUS get_cluster_vnn(struct ctdbd_connection *conn, uint32 *vnn)
+static NTSTATUS get_cluster_vnn(struct ctdbd_connection *conn, uint32_t *vnn)
{
int32_t cstatus=-1;
NTSTATUS status;
status = ctdbd_control(conn,
- CTDB_CURRENT_NODE, CTDB_CONTROL_GET_PNN, 0,
+ CTDB_CURRENT_NODE, CTDB_CONTROL_GET_PNN, 0, 0,
tdb_null, NULL, NULL, &cstatus);
if (!NT_STATUS_IS_OK(status)) {
cluster_fatal("ctdbd_control failed\n");
return status;
}
-uint32 ctdbd_vnn(const struct ctdbd_connection *conn)
+/*
+ * Are we active (i.e. not banned or stopped?)
+ */
+static bool ctdbd_working(struct ctdbd_connection *conn, uint32_t vnn)
+{
+ int32_t cstatus=-1;
+ NTSTATUS status;
+ TDB_DATA outdata;
+ struct ctdb_node_map *m;
+ uint32_t failure_flags;
+ bool ret = false;
+ int i;
+
+ status = ctdbd_control(conn, CTDB_CURRENT_NODE,
+ CTDB_CONTROL_GET_NODEMAP, 0, 0,
+ tdb_null, talloc_tos(), &outdata, &cstatus);
+ if (!NT_STATUS_IS_OK(status)) {
+ cluster_fatal("ctdbd_control failed\n");
+ }
+ if ((cstatus != 0) || (outdata.dptr == NULL)) {
+ DEBUG(2, ("Received invalid ctdb data\n"));
+ return false;
+ }
+
+ m = (struct ctdb_node_map *)outdata.dptr;
+
+ for (i=0; i<m->num; i++) {
+ if (vnn == m->nodes[i].pnn) {
+ break;
+ }
+ }
+
+ if (i == m->num) {
+ DEBUG(2, ("Did not find ourselves (node %d) in nodemap\n",
+ (int)vnn));
+ goto fail;
+ }
+
+ failure_flags = NODE_FLAGS_BANNED | NODE_FLAGS_DISCONNECTED
+ | NODE_FLAGS_PERMANENTLY_DISABLED | NODE_FLAGS_STOPPED;
+
+ if ((m->nodes[i].flags & failure_flags) != 0) {
+ DEBUG(2, ("Node has status %x, not active\n",
+ (int)m->nodes[i].flags));
+ goto fail;
+ }
+
+ ret = true;
+fail:
+ TALLOC_FREE(outdata.dptr);
+ return ret;
+}
+
+uint32_t ctdbd_vnn(const struct ctdbd_connection *conn)
{
return conn->our_vnn;
}
*/
static NTSTATUS ctdbd_connect(TALLOC_CTX *mem_ctx,
- struct packet_context **presult)
+ struct ctdb_packet_context **presult)
{
- struct packet_context *result;
+ struct ctdb_packet_context *result;
const char *sockname = lp_ctdbd_socket();
struct sockaddr_un addr;
int fd;
-
- if (!sockname || !*sockname) {
- sockname = CTDB_PATH;
- }
+ socklen_t salen;
fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd == -1) {
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, sockname, sizeof(addr.sun_path));
- if (sys_connect(fd, (struct sockaddr *)&addr) == -1) {
+ salen = sizeof(struct sockaddr_un);
+ if (connect(fd, (struct sockaddr *)(void *)&addr, salen) == -1) {
DEBUG(1, ("connect(%s) failed: %s\n", sockname,
strerror(errno)));
close(fd);
return map_nt_error_from_unix(errno);
}
- if (!(result = packet_init(mem_ctx, fd))) {
+ if (!(result = ctdb_packet_init(mem_ctx, fd))) {
close(fd);
return NT_STATUS_NO_MEMORY;
}
* Do we have a complete ctdb packet in the queue?
*/
-static bool ctdb_req_complete(const struct data_blob *data,
+static bool ctdb_req_complete(const uint8_t *buf, size_t available,
size_t *length,
void *private_data)
{
- uint32 msglen;
+ uint32_t msglen;
- if (data->length < sizeof(msglen)) {
+ if (available < sizeof(msglen)) {
return False;
}
- msglen = *((uint32 *)data->data);
+ msglen = *((const uint32_t *)buf);
- DEBUG(10, ("msglen = %d\n", msglen));
+ DEBUG(11, ("msglen = %d\n", msglen));
if (msglen < sizeof(struct ctdb_req_header)) {
DEBUG(0, ("Got invalid msglen: %d, expected at least %d for "
cluster_fatal("ctdbd protocol error\n");
}
- if (data->length >= msglen) {
- *length = msglen;
- return True;
+ if (available < msglen) {
+ return false;
}
- return False;
+ *length = msglen;
+ return true;
}
/*
static void deferred_message_dispatch(struct event_context *event_ctx,
struct timed_event *te,
- const struct timeval *now,
+ struct timeval now,
void *private_data)
{
struct deferred_msg_state *state = talloc_get_type_abort(
};
/*
- * Pull a ctdb request out of the incoming packet queue
+ * Pull a ctdb request out of the incoming ctdb_packet queue
*/
-static NTSTATUS ctdb_req_pull(const struct data_blob *data,
+static NTSTATUS ctdb_req_pull(uint8_t *buf, size_t length,
void *private_data)
{
struct req_pull_state *state = (struct req_pull_state *)private_data;
- state->req = data_blob_talloc(state->mem_ctx, data->data,
- data->length);
- if (state->req.data == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
+ state->req.data = talloc_move(state->mem_ctx, &buf);
+ state->req.length = length;
return NT_STATUS_OK;
}
cluster_fatal("got invalid msg length");
}
- if (!(result = TALLOC_P(mem_ctx, struct messaging_rec))) {
+ if (!(result = talloc(mem_ctx, struct messaging_rec))) {
DEBUG(0, ("talloc failed\n"));
return NULL;
}
return NULL;
}
- if (DEBUGLEVEL >= 10) {
- DEBUG(10, ("ctdb_pull_messaging_rec:\n"));
+ if (DEBUGLEVEL >= 11) {
+ DEBUG(11, ("ctdb_pull_messaging_rec:\n"));
NDR_PRINT_DEBUG(messaging_rec, result);
}
return result;
}
+static NTSTATUS ctdb_packet_fd_read_sync(struct ctdb_packet_context *ctx)
+{
+ int timeout = lp_ctdb_timeout();
+
+ if (timeout == 0) {
+ timeout = -1;
+ }
+ return ctdb_packet_fd_read_sync_timeout(ctx, timeout);
+}
+
/*
* Read a full ctdbd request. If we have a messaging context, defer incoming
* messages that might come in between.
*/
-static NTSTATUS ctdb_read_req(struct ctdbd_connection *conn, uint32 reqid,
+static NTSTATUS ctdb_read_req(struct ctdbd_connection *conn, uint32_t reqid,
TALLOC_CTX *mem_ctx, void *result)
{
struct ctdb_req_header *hdr;
struct req_pull_state state;
NTSTATUS status;
- again:
-
- status = packet_fd_read_sync(conn->pkt);
-
- if (NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_BUSY)) {
- /* EAGAIN */
- goto again;
- } else if (NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
- /* EAGAIN */
- goto again;
- }
-
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("packet_fd_read failed: %s\n", nt_errstr(status)));
- cluster_fatal("ctdbd died\n");
- }
-
next_pkt:
-
ZERO_STRUCT(state);
state.mem_ctx = mem_ctx;
- if (!packet_handler(conn->pkt, ctdb_req_complete, ctdb_req_pull,
- &state, &status)) {
+ while (!ctdb_packet_handler(conn->pkt, ctdb_req_complete,
+ ctdb_req_pull, &state, &status)) {
/*
* Not enough data
*/
- DEBUG(10, ("not enough data from ctdb socket, retrying\n"));
- goto again;
+ status = ctdb_packet_fd_read_sync(conn->pkt);
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_BUSY)) {
+ /* EAGAIN */
+ continue;
+ } else if (NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
+ /* EAGAIN */
+ continue;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("packet_fd_read failed: %s\n", nt_errstr(status)));
+ cluster_fatal("ctdbd died\n");
+ }
}
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("Could not read packet: %s\n", nt_errstr(status)));
+ DEBUG(0, ("Could not read ctdb_packet: %s\n", nt_errstr(status)));
cluster_fatal("ctdbd died\n");
}
hdr = (struct ctdb_req_header *)state.req.data;
- DEBUG(10, ("Received ctdb packet\n"));
+ DEBUG(11, ("Received ctdb packet\n"));
ctdb_packet_dump(hdr);
if (hdr->operation == CTDB_REQ_MESSAGE) {
(long long unsigned)msg->srvid));
goto next_pkt;
}
-
+
if ((conn->release_ip_handler != NULL)
&& (msg->srvid == CTDB_SRVID_RELEASE_IP)) {
/* must be dispatched immediately */
goto next_pkt;
}
- if (!(msg_state = TALLOC_P(NULL, struct deferred_msg_state))) {
+ if ((msg->srvid == CTDB_SRVID_RECONFIGURE)
+ || (msg->srvid == CTDB_SRVID_SAMBA_NOTIFY)) {
+
+ DEBUG(1, ("ctdb_read_req: Got %s message\n",
+ (msg->srvid == CTDB_SRVID_RECONFIGURE)
+ ? "cluster reconfigure" : "SAMBA_NOTIFY"));
+
+ messaging_send(conn->msg_ctx,
+ messaging_server_id(conn->msg_ctx),
+ MSG_SMB_BRL_VALIDATE, &data_blob_null);
+ messaging_send(conn->msg_ctx,
+ messaging_server_id(conn->msg_ctx),
+ MSG_DBWRAP_G_LOCK_RETRY,
+ &data_blob_null);
+ TALLOC_FREE(hdr);
+ goto next_pkt;
+ }
+
+ msg_state = talloc(NULL, struct deferred_msg_state);
+ if (msg_state == NULL) {
DEBUG(0, ("talloc failed\n"));
TALLOC_FREE(hdr);
goto next_pkt;
TALLOC_FREE(hdr);
msg_state->msg_ctx = conn->msg_ctx;
-
+
/*
* We're waiting for a call reply, but an async message has
* crossed. Defer dispatching to the toplevel event loop.
evt = event_add_timed(conn->msg_ctx->event_ctx,
conn->msg_ctx->event_ctx,
timeval_zero(),
- "deferred_message_dispatch",
deferred_message_dispatch,
msg_state);
if (evt == NULL) {
TALLOC_FREE(hdr);
goto next_pkt;
}
-
+
goto next_pkt;
}
- if (hdr->reqid != reqid) {
+ if ((reqid != 0) && (hdr->reqid != reqid)) {
/* we got the wrong reply */
DEBUG(0,("Discarding mismatched ctdb reqid %u should have "
"been %u\n", hdr->reqid, reqid));
TALLOC_FREE(hdr);
- goto again;
+ goto next_pkt;
}
*((void **)result) = talloc_move(mem_ctx, &hdr);
* Get us a ctdbd connection
*/
-NTSTATUS ctdbd_init_connection(TALLOC_CTX *mem_ctx,
- struct ctdbd_connection **pconn)
+static NTSTATUS ctdbd_init_connection(TALLOC_CTX *mem_ctx,
+ struct ctdbd_connection **pconn)
{
struct ctdbd_connection *conn;
NTSTATUS status;
- if (!(conn = TALLOC_ZERO_P(mem_ctx, struct ctdbd_connection))) {
+ if (!(conn = talloc_zero(mem_ctx, struct ctdbd_connection))) {
DEBUG(0, ("talloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
goto fail;
}
+ if (!ctdbd_working(conn, conn->our_vnn)) {
+ DEBUG(2, ("Node is not working, can not connect\n"));
+ status = NT_STATUS_INTERNAL_DB_ERROR;
+ goto fail;
+ }
+
generate_random_buffer((unsigned char *)&conn->rand_srvid,
sizeof(conn->rand_srvid));
return status;
}
- status = register_with_ctdbd(conn, (uint64_t)sys_getpid());
+ status = register_with_ctdbd(conn, (uint64_t)getpid());
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
goto fail;
}
+ status = register_with_ctdbd(conn, CTDB_SRVID_SAMBA_NOTIFY);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto fail;
+ }
+
*pconn = conn;
return NT_STATUS_OK;
return status;
}
+struct messaging_context *ctdb_conn_msg_ctx(struct ctdbd_connection *conn)
+{
+ return conn->msg_ctx;
+}
+
+int ctdbd_conn_get_fd(struct ctdbd_connection *conn)
+{
+ return ctdb_packet_get_fd(conn->pkt);
+}
+
/*
* Packet handler to receive and handle a ctdb message
*/
-static NTSTATUS ctdb_handle_message(const struct data_blob *data,
+static NTSTATUS ctdb_handle_message(uint8_t *buf, size_t length,
void *private_data)
{
struct ctdbd_connection *conn = talloc_get_type_abort(
struct ctdb_req_message *msg;
struct messaging_rec *msg_rec;
- msg = (struct ctdb_req_message *)data->data;
+ msg = (struct ctdb_req_message *)buf;
if (msg->hdr.operation != CTDB_REQ_MESSAGE) {
DEBUG(0, ("Received async msg of type %u, discarding\n",
msg->hdr.operation));
+ TALLOC_FREE(buf);
return NT_STATUS_INVALID_PARAMETER;
}
DEBUG(10, ("received CTDB_SRVID_RELEASE_IP\n"));
conn->release_ip_handler((const char *)msg->data,
conn->release_ip_priv);
+ TALLOC_FREE(buf);
return NT_STATUS_OK;
}
SMB_ASSERT(conn->msg_ctx != NULL);
- if (msg->srvid == CTDB_SRVID_RECONFIGURE) {
+ if ((msg->srvid == CTDB_SRVID_RECONFIGURE)
+ || (msg->srvid == CTDB_SRVID_SAMBA_NOTIFY)){
DEBUG(0,("Got cluster reconfigure message\n"));
/*
- * when the cluster is reconfigured, we need to clean the brl
- * database
+ * when the cluster is reconfigured or someone of the
+ * family has passed away (SAMBA_NOTIFY), we need to
+ * clean the brl database
*/
- messaging_send(conn->msg_ctx, procid_self(),
+ messaging_send(conn->msg_ctx,
+ messaging_server_id(conn->msg_ctx),
MSG_SMB_BRL_VALIDATE, &data_blob_null);
- /*
- * it's possible that we have just rejoined the cluster after
- * an outage. In that case our pending locks could have been
- * removed from the lockdb, so retry them once more
- */
- message_send_all(conn->msg_ctx, MSG_SMB_UNLOCK, NULL, 0, NULL);
+ messaging_send(conn->msg_ctx,
+ messaging_server_id(conn->msg_ctx),
+ MSG_DBWRAP_G_LOCK_RETRY,
+ &data_blob_null);
+ TALLOC_FREE(buf);
return NT_STATUS_OK;
-
}
/* only messages to our pid or the broadcast are valid here */
- if (msg->srvid != sys_getpid() && msg->srvid != MSG_SRVID_SAMBA) {
+ if (msg->srvid != getpid() && msg->srvid != MSG_SRVID_SAMBA) {
DEBUG(0,("Got unexpected message with srvid=%llu\n",
(unsigned long long)msg->srvid));
+ TALLOC_FREE(buf);
return NT_STATUS_OK;
}
- if (!(msg_rec = ctdb_pull_messaging_rec(NULL, data->length, msg))) {
+ if (!(msg_rec = ctdb_pull_messaging_rec(NULL, length, msg))) {
DEBUG(10, ("ctdb_pull_messaging_rec failed\n"));
+ TALLOC_FREE(buf);
return NT_STATUS_NO_MEMORY;
}
messaging_dispatch_rec(conn->msg_ctx, msg_rec);
TALLOC_FREE(msg_rec);
+ TALLOC_FREE(buf);
return NT_STATUS_OK;
}
NTSTATUS status;
- status = packet_fd_read(conn->pkt);
+ status = ctdb_packet_fd_read(conn->pkt);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("packet_fd_read failed: %s\n", nt_errstr(status)));
cluster_fatal("ctdbd died\n");
}
- while (packet_handler(conn->pkt, ctdb_req_complete,
+ while (ctdb_packet_handler(conn->pkt, ctdb_req_complete,
ctdb_handle_message, conn, &status)) {
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("could not handle incoming message: %s\n",
SMB_ASSERT(conn->fde == NULL);
if (!(conn->fde = event_add_fd(msg_ctx->event_ctx, conn,
- packet_get_fd(conn->pkt),
+ ctdb_packet_get_fd(conn->pkt),
EVENT_FD_READ,
ctdbd_socket_handler,
conn))) {
*/
NTSTATUS ctdbd_messaging_send(struct ctdbd_connection *conn,
- uint32 dst_vnn, uint64 dst_srvid,
+ uint32_t dst_vnn, uint64_t dst_srvid,
struct messaging_rec *msg)
{
- struct ctdb_req_message r;
- TALLOC_CTX *mem_ctx;
DATA_BLOB blob;
NTSTATUS status;
enum ndr_err_code ndr_err;
- if (!(mem_ctx = talloc_init("ctdbd_messaging_send"))) {
- DEBUG(0, ("talloc failed\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
ndr_err = ndr_push_struct_blob(
- &blob, mem_ctx, msg,
+ &blob, talloc_tos(), msg,
(ndr_push_flags_fn_t)ndr_push_messaging_rec);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
DEBUG(0, ("ndr_push_struct_blob failed: %s\n",
ndr_errstr(ndr_err)));
- status = ndr_map_error2ntstatus(ndr_err);
- goto fail;
+ return ndr_map_error2ntstatus(ndr_err);
}
- r.hdr.length = offsetof(struct ctdb_req_message, data) + blob.length;
+ status = ctdbd_messaging_send_blob(conn, dst_vnn, dst_srvid,
+ blob.data, blob.length);
+ TALLOC_FREE(blob.data);
+ return status;
+}
+
+NTSTATUS ctdbd_messaging_send_blob(struct ctdbd_connection *conn,
+ uint32_t dst_vnn, uint64_t dst_srvid,
+ const uint8_t *buf, size_t buflen)
+{
+ struct ctdb_req_message r;
+ NTSTATUS status;
+
+ r.hdr.length = offsetof(struct ctdb_req_message, data) + buflen;
r.hdr.ctdb_magic = CTDB_MAGIC;
r.hdr.ctdb_version = CTDB_VERSION;
r.hdr.generation = 1;
r.hdr.srcnode = conn->our_vnn;
r.hdr.reqid = 0;
r.srvid = dst_srvid;
- r.datalen = blob.length;
+ r.datalen = buflen;
DEBUG(10, ("ctdbd_messaging_send: Sending ctdb packet\n"));
ctdb_packet_dump(&r.hdr);
- status = packet_send(
+ status = ctdb_packet_send(
conn->pkt, 2,
data_blob_const(&r, offsetof(struct ctdb_req_message, data)),
- blob);
+ data_blob_const(buf, buflen));
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("packet_send failed: %s\n", nt_errstr(status)));
- goto fail;
+ DEBUG(0, ("ctdb_packet_send failed: %s\n", nt_errstr(status)));
+ return status;
}
- status = packet_flush(conn->pkt);
-
+ status = ctdb_packet_flush(conn->pkt);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status)));
cluster_fatal("cluster dispatch daemon msg write error\n");
}
-
- status = NT_STATUS_OK;
- fail:
- TALLOC_FREE(mem_ctx);
- return status;
+ return NT_STATUS_OK;
}
/*
* send/recv a generic ctdb control message
*/
static NTSTATUS ctdbd_control(struct ctdbd_connection *conn,
- uint32_t vnn, uint32 opcode,
- uint64_t srvid, TDB_DATA data,
+ uint32_t vnn, uint32_t opcode,
+ uint64_t srvid, uint32_t flags,
+ TDB_DATA data,
TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
int *cstatus)
{
req.hdr.ctdb_magic = CTDB_MAGIC;
req.hdr.ctdb_version = CTDB_VERSION;
req.hdr.operation = CTDB_REQ_CONTROL;
- req.hdr.reqid = ++conn->reqid;
+ req.hdr.reqid = ctdbd_next_reqid(conn);
req.hdr.destnode = vnn;
req.opcode = opcode;
req.srvid = srvid;
req.datalen = data.dsize;
+ req.flags = flags;
DEBUG(10, ("ctdbd_control: Sending ctdb packet\n"));
ctdb_packet_dump(&req.hdr);
- status = packet_send(
+ status = ctdb_packet_send(
conn->pkt, 2,
data_blob_const(&req, offsetof(struct ctdb_req_control, data)),
data_blob_const(data.dptr, data.dsize));
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(3, ("packet_send failed: %s\n", nt_errstr(status)));
+ DEBUG(3, ("ctdb_packet_send failed: %s\n", nt_errstr(status)));
goto fail;
}
- status = packet_flush(conn->pkt);
+ status = ctdb_packet_flush(conn->pkt);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status)));
cluster_fatal("cluster dispatch daemon control write error\n");
}
+ if (flags & CTDB_CTRL_FLAG_NOREPLY) {
+ TALLOC_FREE(new_conn);
+ if (cstatus) {
+ *cstatus = 0;
+ }
+ return NT_STATUS_OK;
+ }
+
status = ctdb_read_req(conn, req.hdr.reqid, NULL, (void *)&reply);
if (!NT_STATUS_IS_OK(status)) {
/*
* see if a remote process exists
*/
-bool ctdbd_process_exists(struct ctdbd_connection *conn, uint32 vnn, pid_t pid)
+bool ctdbd_process_exists(struct ctdbd_connection *conn, uint32_t vnn, pid_t pid)
{
+ struct server_id id;
+ bool result;
+
+ id.pid = pid;
+ id.vnn = vnn;
+
+ if (!ctdb_processes_exist(conn, &id, 1, &result)) {
+ DEBUG(10, ("ctdb_processes_exist failed\n"));
+ return false;
+ }
+ return result;
+}
+
+bool ctdb_processes_exist(struct ctdbd_connection *conn,
+ const struct server_id *pids, int num_pids,
+ bool *results)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ int i, num_received;
NTSTATUS status;
- TDB_DATA data;
- int32_t cstatus;
+ uint32_t *reqids;
+ bool result = false;
- data.dptr = (uint8_t*)&pid;
- data.dsize = sizeof(pid);
+ reqids = talloc_array(talloc_tos(), uint32_t, num_pids);
+ if (reqids == NULL) {
+ goto fail;
+ }
- status = ctdbd_control(conn, vnn, CTDB_CONTROL_PROCESS_EXISTS, 0,
- data, NULL, NULL, &cstatus);
+ for (i=0; i<num_pids; i++) {
+ struct ctdb_req_control req;
+ pid_t pid;
+
+ results[i] = false;
+ reqids[i] = ctdbd_next_reqid(conn);
+
+ ZERO_STRUCT(req);
+
+ /*
+ * pids[i].pid is uint64_t, scale down to pid_t which
+ * is the wire protocol towards ctdb.
+ */
+ pid = pids[i].pid;
+
+ DEBUG(10, ("Requesting PID %d/%d, reqid=%d\n",
+ (int)pids[i].vnn, (int)pid,
+ (int)reqids[i]));
+
+ req.hdr.length = offsetof(struct ctdb_req_control, data);
+ req.hdr.length += sizeof(pid);
+ req.hdr.ctdb_magic = CTDB_MAGIC;
+ req.hdr.ctdb_version = CTDB_VERSION;
+ req.hdr.operation = CTDB_REQ_CONTROL;
+ req.hdr.reqid = reqids[i];
+ req.hdr.destnode = pids[i].vnn;
+ req.opcode = CTDB_CONTROL_PROCESS_EXISTS;
+ req.srvid = 0;
+ req.datalen = sizeof(pid);
+ req.flags = 0;
+
+ DEBUG(10, ("ctdbd_control: Sending ctdb packet\n"));
+ ctdb_packet_dump(&req.hdr);
+
+ status = ctdb_packet_send(
+ conn->pkt, 2,
+ data_blob_const(
+ &req, offsetof(struct ctdb_req_control, data)),
+ data_blob_const(&pid, sizeof(pid)));
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("ctdb_packet_send failed: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+ }
+
+ status = ctdb_packet_flush(conn->pkt);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, (__location__ " ctdb_control for process_exists "
- "failed\n"));
- return False;
+ DEBUG(10, ("ctdb_packet_flush failed: %s\n",
+ nt_errstr(status)));
+ goto fail;
}
- return cstatus == 0;
+ num_received = 0;
+
+ while (num_received < num_pids) {
+ struct ctdb_reply_control *reply = NULL;
+ uint32_t reqid;
+
+ status = ctdb_read_req(conn, 0, talloc_tos(), (void *)&reply);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("ctdb_read_req failed: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+
+ if (reply->hdr.operation != CTDB_REPLY_CONTROL) {
+ DEBUG(10, ("Received invalid reply\n"));
+ goto fail;
+ }
+
+ reqid = reply->hdr.reqid;
+
+ DEBUG(10, ("Received reqid %d\n", (int)reqid));
+
+ for (i=0; i<num_pids; i++) {
+ if (reqid == reqids[i]) {
+ break;
+ }
+ }
+ if (i == num_pids) {
+ DEBUG(10, ("Received unknown record number %u\n",
+ (unsigned)reqid));
+ goto fail;
+ }
+ results[i] = ((reply->status) == 0);
+ TALLOC_FREE(reply);
+ num_received += 1;
+ }
+
+ result = true;
+fail:
+ TALLOC_FREE(frame);
+ return result;
+}
+
+struct ctdb_vnn_list {
+ uint32_t vnn;
+ uint32_t reqid;
+ unsigned num_srvids;
+ unsigned num_filled;
+ uint64_t *srvids;
+ unsigned *pid_indexes;
+};
+
+/*
+ * Get a list of all vnns mentioned in a list of
+ * server_ids. vnn_indexes tells where in the vnns array we have to
+ * place the pids.
+ */
+static bool ctdb_collect_vnns(TALLOC_CTX *mem_ctx,
+ const struct server_id *pids, unsigned num_pids,
+ struct ctdb_vnn_list **pvnns,
+ unsigned *pnum_vnns)
+{
+ struct ctdb_vnn_list *vnns = NULL;
+ unsigned *vnn_indexes = NULL;
+ unsigned i, num_vnns = 0;
+
+ vnn_indexes = talloc_array(mem_ctx, unsigned, num_pids);
+ if (vnn_indexes == NULL) {
+ DEBUG(1, ("talloc_array failed\n"));
+ goto fail;
+ }
+
+ for (i=0; i<num_pids; i++) {
+ unsigned j;
+ uint32_t vnn = pids[i].vnn;
+
+ for (j=0; j<num_vnns; j++) {
+ if (vnn == vnns[j].vnn) {
+ break;
+ }
+ }
+ vnn_indexes[i] = j;
+
+ if (j < num_vnns) {
+ /*
+ * Already in the array
+ */
+ vnns[j].num_srvids += 1;
+ continue;
+ }
+ vnns = talloc_realloc(mem_ctx, vnns, struct ctdb_vnn_list,
+ num_vnns+1);
+ if (vnns == NULL) {
+ DEBUG(1, ("talloc_realloc failed\n"));
+ goto fail;
+ }
+ vnns[num_vnns].vnn = vnn;
+ vnns[num_vnns].num_srvids = 1;
+ vnns[num_vnns].num_filled = 0;
+ num_vnns += 1;
+ }
+ for (i=0; i<num_vnns; i++) {
+ struct ctdb_vnn_list *vnn = &vnns[i];
+
+ vnn->srvids = talloc_array(vnns, uint64_t, vnn->num_srvids);
+ if (vnn->srvids == NULL) {
+ DEBUG(1, ("talloc_array failed\n"));
+ goto fail;
+ }
+ vnn->pid_indexes = talloc_array(vnns, unsigned,
+ vnn->num_srvids);
+ if (vnn->pid_indexes == NULL) {
+ DEBUG(1, ("talloc_array failed\n"));
+ goto fail;
+ }
+ }
+ for (i=0; i<num_pids; i++) {
+ struct ctdb_vnn_list *vnn = &vnns[vnn_indexes[i]];
+ vnn->srvids[vnn->num_filled] = pids[i].unique_id;
+ vnn->pid_indexes[vnn->num_filled] = i;
+ vnn->num_filled += 1;
+ }
+
+ TALLOC_FREE(vnn_indexes);
+ *pvnns = vnns;
+ *pnum_vnns = num_vnns;
+ return true;
+fail:
+ TALLOC_FREE(vnns);
+ TALLOC_FREE(vnn_indexes);
+ return false;
+}
+
+#ifdef HAVE_CTDB_CONTROL_CHECK_SRVIDS_DECL
+
+bool ctdb_serverids_exist(struct ctdbd_connection *conn,
+ const struct server_id *pids, unsigned num_pids,
+ bool *results)
+{
+ unsigned i, num_received;
+ NTSTATUS status;
+ struct ctdb_vnn_list *vnns = NULL;
+ unsigned num_vnns;
+ bool result = false;
+
+ if (!ctdb_collect_vnns(talloc_tos(), pids, num_pids,
+ &vnns, &num_vnns)) {
+ DEBUG(1, ("ctdb_collect_vnns failed\n"));
+ goto fail;
+ }
+
+ for (i=0; i<num_vnns; i++) {
+ struct ctdb_vnn_list *vnn = &vnns[i];
+ struct ctdb_req_control req;
+
+ vnn->reqid = ctdbd_next_reqid(conn);
+
+ ZERO_STRUCT(req);
+
+ DEBUG(10, ("Requesting VNN %d, reqid=%d, num_srvids=%u\n",
+ (int)vnn->vnn, (int)vnn->reqid, vnn->num_srvids));
+
+ req.hdr.length = offsetof(struct ctdb_req_control, data);
+ req.hdr.ctdb_magic = CTDB_MAGIC;
+ req.hdr.ctdb_version = CTDB_VERSION;
+ req.hdr.operation = CTDB_REQ_CONTROL;
+ req.hdr.reqid = vnn->reqid;
+ req.hdr.destnode = vnn->vnn;
+ req.opcode = CTDB_CONTROL_CHECK_SRVIDS;
+ req.srvid = 0;
+ req.datalen = sizeof(uint64_t) * vnn->num_srvids;
+ req.hdr.length += req.datalen;
+ req.flags = 0;
+
+ DEBUG(10, ("ctdbd_control: Sending ctdb packet\n"));
+ ctdb_packet_dump(&req.hdr);
+
+ status = ctdb_packet_send(
+ conn->pkt, 2,
+ data_blob_const(
+ &req, offsetof(struct ctdb_req_control,
+ data)),
+ data_blob_const(vnn->srvids, req.datalen));
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("ctdb_packet_send failed: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+ }
+
+ status = ctdb_packet_flush(conn->pkt);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("ctdb_packet_flush failed: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+
+ num_received = 0;
+
+ while (num_received < num_vnns) {
+ struct ctdb_reply_control *reply = NULL;
+ struct ctdb_vnn_list *vnn;
+ uint32_t reqid;
+ uint8_t *reply_data;
+
+ status = ctdb_read_req(conn, 0, talloc_tos(), (void *)&reply);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("ctdb_read_req failed: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+
+ if (reply->hdr.operation != CTDB_REPLY_CONTROL) {
+ DEBUG(1, ("Received invalid reply %u\n",
+ (unsigned)reply->hdr.operation));
+ goto fail;
+ }
+
+ reqid = reply->hdr.reqid;
+
+ DEBUG(10, ("Received reqid %d\n", (int)reqid));
+
+ for (i=0; i<num_vnns; i++) {
+ if (reqid == vnns[i].reqid) {
+ break;
+ }
+ }
+ if (i == num_vnns) {
+ DEBUG(1, ("Received unknown reqid number %u\n",
+ (unsigned)reqid));
+ goto fail;
+ }
+
+ DEBUG(10, ("Found index %u\n", i));
+
+ vnn = &vnns[i];
+
+ DEBUG(10, ("Received vnn %u, vnn->num_srvids %u, datalen %u\n",
+ (unsigned)vnn->vnn, vnn->num_srvids,
+ (unsigned)reply->datalen));
+
+ if (reply->datalen >= ((vnn->num_srvids+7)/8)) {
+ /*
+ * Got a real reply
+ */
+ reply_data = reply->data;
+ } else {
+ /*
+ * Got an error reply
+ */
+ DEBUG(5, ("Received short reply len %d, status %u, "
+ "errorlen %u\n",
+ (unsigned)reply->datalen,
+ (unsigned)reply->status,
+ (unsigned)reply->errorlen));
+ dump_data(5, reply->data, reply->errorlen);
+
+ /*
+ * This will trigger everything set to false
+ */
+ reply_data = NULL;
+ }
+
+ for (i=0; i<vnn->num_srvids; i++) {
+ int idx = vnn->pid_indexes[i];
+
+ if (pids[i].unique_id ==
+ SERVERID_UNIQUE_ID_NOT_TO_VERIFY) {
+ results[idx] = true;
+ continue;
+ }
+ results[idx] =
+ (reply_data != NULL) &&
+ ((reply_data[i/8] & (1<<(i%8))) != 0);
+ }
+
+ TALLOC_FREE(reply);
+ num_received += 1;
+ }
+
+ result = true;
+fail:
+ TALLOC_FREE(vnns);
+ return result;
}
+#endif /* HAVE_CTDB_CONTROL_CHECK_SRVIDS_DECL */
+
/*
* Get a db path
*/
data.dsize = sizeof(db_id);
status = ctdbd_control(conn, CTDB_CURRENT_NODE,
- CTDB_CONTROL_GETDBPATH, 0, data,
+ CTDB_CONTROL_GETDBPATH, 0, 0, data,
mem_ctx, &data, &cstatus);
if (!NT_STATUS_IS_OK(status) || cstatus != 0) {
DEBUG(0,(__location__ " ctdb_control for getdbpath failed\n"));
int32_t cstatus;
bool persistent = (tdb_flags & TDB_CLEAR_IF_FIRST) == 0;
- data.dptr = (uint8_t*)name;
- data.dsize = strlen(name)+1;
+ data = string_term_tdb_data(name);
status = ctdbd_control(conn, CTDB_CURRENT_NODE,
persistent
? CTDB_CONTROL_DB_ATTACH_PERSISTENT
: CTDB_CONTROL_DB_ATTACH,
- 0, data, NULL, &data, &cstatus);
+ tdb_flags, 0, data, NULL, &data, &cstatus);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, (__location__ " ctdb_control for db_attach "
"failed: %s\n", nt_errstr(status)));
data.dsize = sizeof(*db_id);
status = ctdbd_control(conn, CTDB_CURRENT_NODE,
- CTDB_CONTROL_ENABLE_SEQNUM, 0, data,
+ CTDB_CONTROL_ENABLE_SEQNUM, 0, 0, data,
NULL, NULL, &cstatus);
if (!NT_STATUS_IS_OK(status) || cstatus != 0) {
DEBUG(0,(__location__ " ctdb_control for enable seqnum "
/*
* force the migration of a record to this node
*/
-NTSTATUS ctdbd_migrate(struct ctdbd_connection *conn, uint32 db_id,
+NTSTATUS ctdbd_migrate(struct ctdbd_connection *conn, uint32_t db_id,
TDB_DATA key)
{
struct ctdb_req_call req;
NTSTATUS status;
ZERO_STRUCT(req);
-
+
req.hdr.length = offsetof(struct ctdb_req_call, data) + key.dsize;
req.hdr.ctdb_magic = CTDB_MAGIC;
req.hdr.ctdb_version = CTDB_VERSION;
req.hdr.operation = CTDB_REQ_CALL;
- req.hdr.reqid = ++conn->reqid;
+ req.hdr.reqid = ctdbd_next_reqid(conn);
req.flags = CTDB_IMMEDIATE_MIGRATION;
req.callid = CTDB_NULL_FUNC;
req.db_id = db_id;
DEBUG(10, ("ctdbd_migrate: Sending ctdb packet\n"));
ctdb_packet_dump(&req.hdr);
- status = packet_send(
+ status = ctdb_packet_send(
conn->pkt, 2,
data_blob_const(&req, offsetof(struct ctdb_req_call, data)),
data_blob_const(key.dptr, key.dsize));
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(3, ("packet_send failed: %s\n", nt_errstr(status)));
+ DEBUG(3, ("ctdb_packet_send failed: %s\n", nt_errstr(status)));
return status;
}
- status = packet_flush(conn->pkt);
+ status = ctdb_packet_flush(conn->pkt);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status)));
}
/*
- * remotely fetch a record without locking it or forcing a migration
+ * remotely fetch a record (read-only)
*/
-NTSTATUS ctdbd_fetch(struct ctdbd_connection *conn, uint32 db_id,
- TDB_DATA key, TALLOC_CTX *mem_ctx, TDB_DATA *data)
+NTSTATUS ctdbd_fetch(struct ctdbd_connection *conn, uint32_t db_id,
+ TDB_DATA key, TALLOC_CTX *mem_ctx, TDB_DATA *data,
+ bool local_copy)
{
struct ctdb_req_call req;
struct ctdb_reply_call *reply;
NTSTATUS status;
+ uint32_t flags;
+
+#ifdef HAVE_CTDB_WANT_READONLY_DECL
+ flags = local_copy ? CTDB_WANT_READONLY : 0;
+#else
+ flags = 0;
+#endif
ZERO_STRUCT(req);
-
+
req.hdr.length = offsetof(struct ctdb_req_call, data) + key.dsize;
req.hdr.ctdb_magic = CTDB_MAGIC;
req.hdr.ctdb_version = CTDB_VERSION;
req.hdr.operation = CTDB_REQ_CALL;
- req.hdr.reqid = ++conn->reqid;
- req.flags = 0;
+ req.hdr.reqid = ctdbd_next_reqid(conn);
+ req.flags = flags;
req.callid = CTDB_FETCH_FUNC;
req.db_id = db_id;
req.keylen = key.dsize;
- status = packet_send(
+ status = ctdb_packet_send(
conn->pkt, 2,
data_blob_const(&req, offsetof(struct ctdb_req_call, data)),
data_blob_const(key.dptr, key.dsize));
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(3, ("packet_send failed: %s\n", nt_errstr(status)));
+ DEBUG(3, ("ctdb_packet_send failed: %s\n", nt_errstr(status)));
return status;
}
- status = packet_flush(conn->pkt);
+ status = ctdb_packet_flush(conn->pkt);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("write to ctdbd failed: %s\n", nt_errstr(status)));
* Handle a traverse record coming in on the ctdbd connection
*/
-static NTSTATUS ctdb_traverse_handler(const struct data_blob *blob,
+static NTSTATUS ctdb_traverse_handler(uint8_t *buf, size_t length,
void *private_data)
{
struct ctdbd_traverse_state *state =
struct ctdb_rec_data *d;
TDB_DATA key, data;
- m = (struct ctdb_req_message *)blob->data;
+ m = (struct ctdb_req_message *)buf;
- if (blob->length < sizeof(*m) || m->hdr.length != blob->length) {
- DEBUG(0, ("Got invalid message of length %d\n",
- (int)blob->length));
+ if (length < sizeof(*m) || m->hdr.length != length) {
+ DEBUG(0, ("Got invalid message of length %d\n", (int)length));
+ TALLOC_FREE(buf);
return NT_STATUS_UNEXPECTED_IO_ERROR;
}
if (m->datalen < sizeof(uint32_t) || m->datalen != d->length) {
DEBUG(0, ("Got invalid traverse data of length %d\n",
(int)m->datalen));
+ TALLOC_FREE(buf);
return NT_STATUS_UNEXPECTED_IO_ERROR;
}
if (data.dsize < sizeof(struct ctdb_ltdb_header)) {
DEBUG(0, ("Got invalid ltdb header length %d\n",
(int)data.dsize));
+ TALLOC_FREE(buf);
return NT_STATUS_UNEXPECTED_IO_ERROR;
}
data.dsize -= sizeof(struct ctdb_ltdb_header);
state->fn(key, data, state->private_data);
}
+ TALLOC_FREE(buf);
return NT_STATUS_OK;
}
everything in-line.
*/
-NTSTATUS ctdbd_traverse(uint32 db_id,
+NTSTATUS ctdbd_traverse(uint32_t db_id,
void (*fn)(TDB_DATA key, TDB_DATA data,
void *private_data),
void *private_data)
int cstatus;
struct ctdbd_traverse_state state;
+ become_root();
status = ctdbd_init_connection(NULL, &conn);
+ unbecome_root();
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("ctdbd_init_connection failed: %s\n",
+ nt_errstr(status)));
+ return status;
+ }
t.db_id = db_id;
t.srvid = conn->rand_srvid;
- t.reqid = ++conn->reqid;
+ t.reqid = ctdbd_next_reqid(conn);
data.dptr = (uint8_t *)&t;
data.dsize = sizeof(t);
status = ctdbd_control(conn, CTDB_CURRENT_NODE,
- CTDB_CONTROL_TRAVERSE_START, conn->rand_srvid,
+ CTDB_CONTROL_TRAVERSE_START, conn->rand_srvid, 0,
data, NULL, NULL, &cstatus);
if (!NT_STATUS_IS_OK(status) || (cstatus != 0)) {
status = NT_STATUS_OK;
- if (packet_handler(conn->pkt, ctdb_req_complete,
+ if (ctdb_packet_handler(conn->pkt, ctdb_req_complete,
ctdb_traverse_handler, &state, &status)) {
if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE)) {
break;
}
- status = packet_fd_read_sync(conn->pkt);
+ status = ctdb_packet_fd_read_sync(conn->pkt);
if (NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
/*
if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE)) {
status = NT_STATUS_OK;
+ break;
}
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("packet_fd_read_sync failed: %s\n", nt_errstr(status)));
+ DEBUG(0, ("ctdb_packet_fd_read_sync failed: %s\n", nt_errstr(status)));
cluster_fatal("ctdbd died\n");
}
}
return status;
}
+/*
+ This is used to canonicalize a ctdb_sock_addr structure.
+*/
+static void smbd_ctdb_canonicalize_ip(const struct sockaddr_storage *in,
+ struct sockaddr_storage *out)
+{
+ memcpy(out, in, sizeof (*out));
+
+#ifdef HAVE_IPV6
+ if (in->ss_family == AF_INET6) {
+ const char prefix[12] = { 0,0,0,0,0,0,0,0,0,0,0xff,0xff };
+ const struct sockaddr_in6 *in6 =
+ (const struct sockaddr_in6 *)in;
+ struct sockaddr_in *out4 = (struct sockaddr_in *)out;
+ if (memcmp(&in6->sin6_addr, prefix, 12) == 0) {
+ memset(out, 0, sizeof(*out));
+#ifdef HAVE_SOCK_SIN_LEN
+ out4->sin_len = sizeof(*out);
+#endif
+ out4->sin_family = AF_INET;
+ out4->sin_port = in6->sin6_port;
+ memcpy(&out4->sin_addr, &in6->sin6_addr.s6_addr[12], 4);
+ }
+ }
+#endif
+}
+
/*
* Register us as a server for a particular tcp connection
*/
NTSTATUS ctdbd_register_ips(struct ctdbd_connection *conn,
- const struct sockaddr_in *server,
- const struct sockaddr_in *client,
+ const struct sockaddr_storage *_server,
+ const struct sockaddr_storage *_client,
void (*release_ip_handler)(const char *ip_addr,
void *private_data),
void *private_data)
{
- struct ctdb_control_tcp p;
+ /*
+ * we still use ctdb_control_tcp for ipv4
+ * because we want to work against older ctdb
+ * versions at runtime
+ */
+ struct ctdb_control_tcp p4;
+#ifdef HAVE_STRUCT_CTDB_CONTROL_TCP_ADDR
+ struct ctdb_control_tcp_addr p;
+#endif
TDB_DATA data;
NTSTATUS status;
+ struct sockaddr_storage client;
+ struct sockaddr_storage server;
/*
* Only one connection so far
*/
SMB_ASSERT(conn->release_ip_handler == NULL);
+ smbd_ctdb_canonicalize_ip(_client, &client);
+ smbd_ctdb_canonicalize_ip(_server, &server);
+
+ switch (client.ss_family) {
+ case AF_INET:
+ memcpy(&p4.dest, &server, sizeof(p4.dest));
+ memcpy(&p4.src, &client, sizeof(p4.src));
+ data.dptr = (uint8_t *)&p4;
+ data.dsize = sizeof(p4);
+ break;
+#ifdef HAVE_STRUCT_CTDB_CONTROL_TCP_ADDR
+ case AF_INET6:
+ memcpy(&p.dest.ip6, &server, sizeof(p.dest.ip6));
+ memcpy(&p.src.ip6, &client, sizeof(p.src.ip6));
+ data.dptr = (uint8_t *)&p;
+ data.dsize = sizeof(p);
+ break;
+#endif
+ default:
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ conn->release_ip_handler = release_ip_handler;
+ conn->release_ip_priv = private_data;
+
/*
* We want to be told about IP releases
*/
return status;
}
- p.dest = *server;
- p.src = *client;
-
/*
* inform ctdb of our tcp connection, so if IP takeover happens ctdb
* can send an extra ack to trigger a reset for our client, so it
* immediately reconnects
*/
- data.dptr = (uint8_t *)&p;
- data.dsize = sizeof(p);
-
return ctdbd_control(conn, CTDB_CURRENT_NODE,
- CTDB_CONTROL_TCP_CLIENT,
+ CTDB_CONTROL_TCP_CLIENT, 0,
CTDB_CTRL_FLAG_NOREPLY, data, NULL, NULL, NULL);
}
}
/*
- persstent store. Used when we update a record in a persistent database
+ call a control on the local node
*/
-NTSTATUS ctdbd_persistent_store(struct ctdbd_connection *conn, uint32_t db_id, TDB_DATA key, TDB_DATA data)
+NTSTATUS ctdbd_control_local(struct ctdbd_connection *conn, uint32_t opcode,
+ uint64_t srvid, uint32_t flags, TDB_DATA data,
+ TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
+ int *cstatus)
+{
+ return ctdbd_control(conn, CTDB_CURRENT_NODE, opcode, srvid, flags, data, mem_ctx, outdata, cstatus);
+}
+
+NTSTATUS ctdb_watch_us(struct ctdbd_connection *conn)
{
- int cstatus=0;
- struct ctdb_rec_data *rec;
- TDB_DATA recdata;
- size_t length;
- NTSTATUS status;
-
- length = offsetof(struct ctdb_rec_data, data) + key.dsize + data.dsize;
-
- rec = (struct ctdb_rec_data *)talloc_size(conn, length);
- NT_STATUS_HAVE_NO_MEMORY(rec);
-
- rec->length = length;
- rec->reqid = db_id;
- rec->keylen = key.dsize;
- rec->datalen= data.dsize;
- memcpy(&rec->data[0], key.dptr, key.dsize);
- memcpy(&rec->data[key.dsize], data.dptr, data.dsize);
-
- recdata.dptr = (uint8_t *)rec;
- recdata.dsize = length;
-
- status = ctdbd_control(conn, CTDB_CURRENT_NODE,
- CTDB_CONTROL_PERSISTENT_STORE,
- 0, recdata, NULL, NULL, &cstatus);
- if (cstatus != 0) {
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
- return status;
+ struct ctdb_client_notify_register reg_data;
+ size_t struct_len;
+ NTSTATUS status;
+ int cstatus;
+
+ reg_data.srvid = CTDB_SRVID_SAMBA_NOTIFY;
+ reg_data.len = 1;
+ reg_data.notify_data[0] = 0;
+
+ struct_len = offsetof(struct ctdb_client_notify_register,
+ notify_data) + reg_data.len;
+
+ status = ctdbd_control_local(
+ conn, CTDB_CONTROL_REGISTER_NOTIFY, conn->rand_srvid, 0,
+ make_tdb_data((uint8_t *)®_data, struct_len),
+ NULL, NULL, &cstatus);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("ctdbd_control_local failed: %s\n",
+ nt_errstr(status)));
+ }
+ return status;
}
+NTSTATUS ctdb_unwatch(struct ctdbd_connection *conn)
+{
+ struct ctdb_client_notify_deregister dereg_data;
+ NTSTATUS status;
+ int cstatus;
+
+ dereg_data.srvid = CTDB_SRVID_SAMBA_NOTIFY;
+
+ status = ctdbd_control_local(
+ conn, CTDB_CONTROL_DEREGISTER_NOTIFY, conn->rand_srvid, 0,
+ make_tdb_data((uint8_t *)&dereg_data, sizeof(dereg_data)),
+ NULL, NULL, &cstatus);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("ctdbd_control_local failed: %s\n",
+ nt_errstr(status)));
+ }
+ return status;
+}
#else
-NTSTATUS ctdbd_init_connection(TALLOC_CTX *mem_ctx,
- struct ctdbd_connection **pconn)
+NTSTATUS ctdbd_messaging_send_blob(struct ctdbd_connection *conn,
+ uint32_t dst_vnn, uint64_t dst_srvid,
+ const uint8_t *buf, size_t buflen)
{
return NT_STATUS_NOT_IMPLEMENTED;
}
git.samba.org / kai / samba.git / blobdiff