*/
#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 "ctdbd_conn.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;
- struct fd_event *fde;
+ uint32_t reqid;
+ uint32_t our_vnn;
+ uint64_t rand_srvid;
+ struct ctdb_packet_context *pkt;
+ struct tevent_fd *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, uint32_t flags, 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;
/*
* 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;
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");
+ DEBUG(1, ("ctdbd_control failed: %s\n", nt_errstr(status)));
+ return status;
}
*vnn = (uint32_t)cstatus;
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)) {
+ DEBUG(1, ("ctdbd_control failed: %s\n", nt_errstr(status)));
+ return false;
+ }
+ 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;
+ struct sockaddr_un addr = { 0, };
int fd;
-
- if (!sockname || !*sockname) {
- sockname = CTDB_PATH;
- }
+ socklen_t salen;
fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd == -1) {
return map_nt_error_from_unix(errno);
}
- ZERO_STRUCT(addr);
addr.sun_family = AF_UNIX;
- strncpy(addr.sun_path, sockname, sizeof(addr.sun_path));
+ snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", sockname);
- if (sys_connect(fd, (struct sockaddr *)(void *)&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;
}
size_t *length,
void *private_data)
{
- uint32 msglen;
+ uint32_t msglen;
if (available < sizeof(msglen)) {
return False;
}
- msglen = *((uint32 *)buf);
+ 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 "
* Timed event handler for the deferred message
*/
-static void deferred_message_dispatch(struct event_context *event_ctx,
- struct timed_event *te,
+static void deferred_message_dispatch(struct tevent_context *event_ctx,
+ struct tevent_timer *te,
struct timeval now,
void *private_data)
{
};
/*
- * 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(uint8_t *buf, size_t length,
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 packet_context *ctx)
+static NTSTATUS ctdb_packet_fd_read_sync(struct ctdb_packet_context *ctx)
{
- struct timeval timeout;
- struct timeval *ptimeout;
+ int timeout = lp_ctdb_timeout();
- timeout = timeval_set(lp_ctdb_timeout(), 0);
- ptimeout = (timeout.tv_sec != 0) ? &timeout : NULL;
-
- return packet_fd_read_sync(ctx, ptimeout);
+ if (timeout == 0) {
+ timeout = -1;
+ }
+ return ctdb_packet_fd_read_sync_timeout(ctx, timeout);
}
/*
* 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 = ctdb_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) {
- struct timed_event *evt;
+ struct tevent_timer *evt;
struct deferred_msg_state *msg_state;
struct ctdb_req_message *msg = (struct ctdb_req_message *)hdr;
goto next_pkt;
}
- msg_state = TALLOC_P(NULL, struct deferred_msg_state);
+ msg_state = talloc(NULL, struct deferred_msg_state);
if (msg_state == NULL) {
DEBUG(0, ("talloc failed\n"));
TALLOC_FREE(hdr);
* 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,
+ evt = tevent_add_timer(conn->msg_ctx->event_ctx,
conn->msg_ctx->event_ctx,
timeval_zero(),
deferred_message_dispatch,
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);
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;
}
int ctdbd_conn_get_fd(struct ctdbd_connection *conn)
{
- return packet_get_fd(conn->pkt);
+ return ctdb_packet_get_fd(conn->pkt);
}
/*
}
/* 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);
* The ctdbd socket is readable asynchronuously
*/
-static void ctdbd_socket_handler(struct event_context *event_ctx,
- struct fd_event *event,
+static void ctdbd_socket_handler(struct tevent_context *event_ctx,
+ struct tevent_fd *event,
uint16 flags,
void *private_data)
{
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->msg_ctx == NULL);
SMB_ASSERT(conn->fde == NULL);
- if (!(conn->fde = event_add_fd(msg_ctx->event_ctx, conn,
- packet_get_fd(conn->pkt),
- EVENT_FD_READ,
+ if (!(conn->fde = tevent_add_fd(msg_ctx->event_ctx, conn,
+ ctdb_packet_get_fd(conn->pkt),
+ TEVENT_FD_READ,
ctdbd_socket_handler,
conn))) {
DEBUG(0, ("event_add_fd failed\n"));
*/
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, uint32_t flags,
- 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)
{
struct ctdbd_connection *new_conn = NULL;
NTSTATUS status;
- /* the samba3 ctdb code can't handle NOREPLY yet */
- flags &= ~CTDB_CTRL_FLAG_NOREPLY;
-
if (conn == NULL) {
status = ctdbd_init_connection(NULL, &new_conn);
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)));
if (flags & CTDB_CTRL_FLAG_NOREPLY) {
TALLOC_FREE(new_conn);
+ if (cstatus) {
+ *cstatus = 0;
+ }
return NT_STATUS_OK;
}
/*
* 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;
+
+ reqids = talloc_array(talloc_tos(), uint32_t, num_pids);
+ if (reqids == NULL) {
+ goto fail;
+ }
- data.dptr = (uint8_t*)&pid;
- data.dsize = sizeof(pid);
+ for (i=0; i<num_pids; i++) {
+ struct ctdb_req_control req;
+ pid_t pid;
- status = ctdbd_control(conn, vnn, CTDB_CONTROL_PROCESS_EXISTS, 0, 0,
- data, NULL, NULL, &cstatus);
+ 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
*/
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, 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)));
/*
* 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;
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
+ * Fetch a record and parse it
*/
-NTSTATUS ctdbd_fetch(struct ctdbd_connection *conn, uint32 db_id,
- TDB_DATA key, TALLOC_CTX *mem_ctx, TDB_DATA *data)
+NTSTATUS ctdbd_parse(struct ctdbd_connection *conn, uint32_t db_id,
+ TDB_DATA key, bool local_copy,
+ void (*parser)(TDB_DATA key, TDB_DATA data,
+ void *private_data),
+ void *private_data)
{
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.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)));
goto fail;
}
- data->dsize = reply->datalen;
- if (data->dsize == 0) {
- data->dptr = NULL;
- goto done;
- }
-
- data->dptr = (uint8 *)talloc_memdup(mem_ctx, &reply->data[0],
- reply->datalen);
- if (data->dptr == NULL) {
- DEBUG(0, ("talloc failed\n"));
- status = NT_STATUS_NO_MEMORY;
+ if (reply->datalen == 0) {
+ /*
+ * Treat an empty record as non-existing
+ */
+ status = NT_STATUS_NOT_FOUND;
goto fail;
}
- done:
+ parser(key, make_tdb_data(&reply->data[0], reply->datalen),
+ private_data);
+
status = NT_STATUS_OK;
fail:
TALLOC_FREE(reply);
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)));
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 = 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)) {
}
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");
}
}
#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 = (struct sockaddr_in6 *)in;
+ 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));
#endif
out4->sin_family = AF_INET;
out4->sin_port = in6->sin6_port;
- memcpy(&out4->sin_addr, &in6->sin6_addr.s6_addr32[3], 4);
+ memcpy(&out4->sin_addr, &in6->sin6_addr.s6_addr[12], 4);
}
}
#endif
switch (client.ss_family) {
case AF_INET:
- p4.dest = *(struct sockaddr_in *)(void *)&server;
- p4.src = *(struct sockaddr_in *)(void *)&client;
+ 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:
- p.dest.ip6 = *(struct sockaddr_in6 *)(void *)&server;
- p.src.ip6 = *(struct sockaddr_in6 *)(void *)&client;
+ 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;
}
conn->release_ip_handler = release_ip_handler;
+ conn->release_ip_priv = private_data;
/*
* We want to be told about IP releases
/*
call a control on the local node
*/
-NTSTATUS ctdbd_control_local(struct ctdbd_connection *conn, uint32 opcode,
- uint64_t srvid, uint32_t flags, 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 status;
}
+#else
+
+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;
+}
+
#endif
git.samba.org / mat / samba.git / blobdiff