LOGFILEBASE = @logfilebase@
CONFIGFILE = $(CONFIGDIR)/smb.conf
LMHOSTSFILE = $(CONFIGDIR)/lmhosts
+CTDBDIR = @ctdbdir@
# This is where smbpasswd et al go
PRIVATEDIR = @privatedir@
FLAGS1 = $(CFLAGS) @FLAGS1@ @SAMBA_CPPFLAGS@ $(CPPFLAGS)
FLAGS2 =
FLAGS3 =
-FLAGS4 =
+FLAGS4 = -I$(CTDBDIR)/include
FLAGS5 = $(FLAGS1) $(FLAGS2) $(FLAGS3) $(FLAGS4)
FLAGS = $(ISA) $(FLAGS5) -I$(srcdir)/lib -D_SAMBA_BUILD_=3
-DLIBDIR=\"$(LIBDIR)\" \
-DLOGFILEBASE=\"$(LOGFILEBASE)\" \
-DSHLIBEXT=\"@SHLIBEXT@\" \
+ -DCTDBDIR=\"$(CTDBDIR)\" \
-DCONFIGDIR=\"$(CONFIGDIR)\"
# Note that all executable programs now provide for an optional executable suffix.
lib/tdb/common/traverse.o
TDB_OBJ = $(TDBBASE_OBJ) lib/util_tdb.o\
- lib/dbwrap.o lib/dbwrap_tdb.o
+ lib/dbwrap.o lib/dbwrap_tdb.o lib/dbwrap_ctdb.o
SMBLDAP_OBJ = @SMBLDAP@ @SMBLDAPUTIL@
LIB_WITHOUT_PROTO_OBJ = $(LIBREPLACE_OBJ) $(SOCKET_WRAPPER_OBJ) $(TALLOC_OBJ) \
- lib/messages.o librpc/gen_ndr/ndr_messaging.o lib/messages_local.o
+ lib/messages.o librpc/gen_ndr/ndr_messaging.o lib/messages_local.o \
+ lib/messages_ctdbd.o lib/packet.o lib/ctdbd_conn.o
LIB_WITH_PROTO_OBJ = $(VERSION_OBJ) lib/charcnv.o lib/debug.o lib/fault.o \
lib/interface.o lib/md4.o \
;;
esac])
+
+#################################################
+# set ctdb source directory location
+AC_ARG_WITH(ctdb,
+[ --with-ctdb=DIR Where to find ctdb sources],
+[ case "$withval" in
+ yes|no)
+ AC_MSG_WARN([--with-ctdb called without argument])
+ ;;
+ * )
+ ctdbdir="$withval"
+ ;;
+ esac])
+
#################################################
# set lib directory location
AC_ARG_WITH(libdir,
AC_SUBST(lockdir)
AC_SUBST(piddir)
AC_SUBST(logfilebase)
+AC_SUBST(ctdbdir)
AC_SUBST(privatedir)
AC_SUBST(swatdir)
AC_SUBST(bindir)
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Samba3 ctdb connection handling
+ Copyright (C) Volker Lendecke 2007
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+struct ctdbd_connection;
+
+NTSTATUS ctdbd_init_connection(TALLOC_CTX *mem_ctx,
+ struct ctdbd_connection **pconn);
+NTSTATUS ctdbd_messaging_connection(TALLOC_CTX *mem_ctx,
+ struct ctdbd_connection **pconn);
+
+uint32 ctdbd_vnn(const struct ctdbd_connection *conn);
+
+NTSTATUS ctdbd_register_msg_ctx(struct ctdbd_connection *conn,
+ struct messaging_context *msg_ctx);
+
+NTSTATUS ctdbd_messaging_send(struct ctdbd_connection *conn,
+ uint32 dst_vnn, uint64 dst_srvid,
+ struct messaging_rec *msg);
+
+BOOL ctdbd_process_exists(struct ctdbd_connection *conn, uint32 vnn,
+ pid_t pid);
+
+char *ctdbd_dbpath(struct ctdbd_connection *conn,
+ TALLOC_CTX *mem_ctx, uint32_t db_id);
+
+NTSTATUS ctdbd_db_attach(struct ctdbd_connection *conn, const char *name,
+ uint32_t *db_id, int tdb_flags);
+
+NTSTATUS ctdbd_migrate(struct ctdbd_connection *conn, uint32 db_id,
+ TDB_DATA key);
+
+NTSTATUS ctdbd_fetch(struct ctdbd_connection *conn, uint32 db_id,
+ TDB_DATA key, TALLOC_CTX *mem_ctx, TDB_DATA *data);
+
+NTSTATUS ctdbd_traverse(uint32 db_id,
+ void (*fn)(TDB_DATA key, TDB_DATA data,
+ void *private_data),
+ void *private_data);
+
+NTSTATUS ctdbd_register_ips(struct ctdbd_connection *conn,
+ const struct sockaddr_in *server,
+ const struct sockaddr_in *client,
+ void (*release_ip_handler)(const char *ip_addr,
+ void *private_data),
+ void *private_data);
+
+NTSTATUS ctdbd_register_reconfigure(struct ctdbd_connection *conn);
+
#include "rpc_client.h"
#include "event.h"
#include "dbwrap.h"
+#include "packet.h"
+#include "ctdbd_conn.h"
/*
* Type for wide character dirent structure.
#define FLAG_MSG_PRINT_NOTIFY 0x0008
#define FLAG_MSG_PRINT_GENERAL 0x0010
+
+/*
+ * Virtual Node Numbers are identifying a node within a cluster. Ctdbd sets
+ * this, we retrieve our vnn from it.
+ */
+
+#define NONCLUSTER_VNN (0xFFFFFFFF)
+
+/*
+ * ctdb gives us 64-bit server ids for messaging_send. This is done to avoid
+ * pid clashes and to be able to register for special messages like "all
+ * smbds".
+ *
+ * Normal individual server id's have the upper 32 bits to 0, I picked "1" for
+ * Samba, other subsystems might use something else.
+ */
+
+#define MSG_SRVID_SAMBA 0x0000000100000000LL
+
+
struct server_id {
pid_t pid;
+#ifdef CLUSTER_SUPPORT
+ uint32 vnn;
+#endif
};
+
+
struct messaging_context;
struct messaging_rec;
struct data_blob;
struct messaging_callback *callbacks;
struct messaging_backend *local;
+ struct messaging_backend *remote;
};
struct messaging_backend {
struct messaging_backend **presult);
void message_dispatch(struct messaging_context *msg_ctx);
+NTSTATUS messaging_ctdbd_init(struct messaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct messaging_backend **presult);
+struct ctdbd_connection *messaging_ctdbd_connection(void);
BOOL message_send_all(struct messaging_context *msg_ctx,
int msg_type,
struct messaging_context *messaging_init(TALLOC_CTX *mem_ctx,
struct server_id server_id,
struct event_context *ev);
+
+/*
+ * re-init after a fork
+ */
+NTSTATUS messaging_reinit(struct messaging_context *msg_ctx);
+
NTSTATUS messaging_register(struct messaging_context *msg_ctx,
void *private_data,
uint32_t msg_type,
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Packet handling
+ Copyright (C) Volker Lendecke 2007
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ * A packet context is a wrapper around a bidirectional file descriptor,
+ * hiding the handling of individual requests.
+ */
+
+struct packet_context;
+
+/*
+ * Initialize a packet context. The fd is given to the packet context, meaning
+ * that it is automatically closed when the packet context is freed.
+ */
+struct packet_context *packet_init(TALLOC_CTX *mem_ctx, int fd);
+
+/*
+ * Pull data from the fd
+ */
+NTSTATUS packet_fd_read(struct packet_context *ctx);
+
+/*
+ * Sync read, wait for the next chunk
+ */
+NTSTATUS packet_fd_read_sync(struct packet_context *ctx);
+
+/*
+ * Handle an incoming packet:
+ * Return False if none is available
+ * Otherwise return True and store the callback result in *status
+ */
+BOOL packet_handler(struct packet_context *ctx,
+ BOOL (*full_req)(const struct data_blob *data,
+ size_t *length,
+ void *private_data),
+ NTSTATUS (*callback)(const struct data_blob *data,
+ void *private_data),
+ void *private_data,
+ NTSTATUS *status);
+
+/*
+ * How many bytes of outgoing data do we have pending?
+ */
+size_t packet_outgoing_bytes(struct packet_context *ctx);
+
+/*
+ * Push data to the fd
+ */
+NTSTATUS packet_fd_write(struct packet_context *ctx);
+
+/*
+ * Sync flush all outgoing bytes
+ */
+NTSTATUS packet_flush(struct packet_context *ctx);
+
+/*
+ * Send a list of DATA_BLOBs
+ *
+ * Example: packet_send(ctx, 2, data_blob_const(&size, sizeof(size)),
+ * data_blob_const(buf, size));
+ */
+NTSTATUS packet_send(struct packet_context *ctx, int num_blobs, ...);
+
+/*
+ * Get the packet context's file descriptor
+ */
+int packet_get_fd(struct packet_context *ctx);
54
*/
+#ifdef CLUSTER_SUPPORT
+#define MSG_SMB_SHARE_MODE_ENTRY_SIZE 58
+#else
#define MSG_SMB_SHARE_MODE_ENTRY_SIZE 54
+#endif
struct share_mode_lock {
const char *servicepath; /* canonicalized. */
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#ifdef CLUSTER_SUPPORT
+
+#include "librpc/gen_ndr/messaging.h"
+#include "librpc/gen_ndr/ndr_messaging.h"
+
+/* 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;
+
+ void (*release_ip_handler)(const char *ip_addr, void *private_data);
+ void *release_ip_priv;
+};
+
+static NTSTATUS ctdbd_control(struct ctdbd_connection *conn,
+ uint32_t vnn, uint32 opcode,
+ uint64_t srvid, TDB_DATA data,
+ TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
+ int *cstatus);
+
+/*
+ * exit on fatal communications errors with the ctdbd daemon
+ */
+static void cluster_fatal(const char *why)
+{
+ DEBUG(0,("cluster fatal event: %s - exiting immediately\n", why));
+ /* we don't use smb_panic() as we don't want to delay to write
+ a core file. We need to release this process id immediately
+ so that someone else can take over without getting sharing
+ violations */
+ _exit(0);
+}
+
+/*
+ * Register a srvid with ctdbd
+ */
+static 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,
+ tdb_null, NULL, NULL, &cstatus);
+}
+
+/*
+ * get our vnn from the cluster
+ */
+static NTSTATUS get_cluster_vnn(struct ctdbd_connection *conn, uint32 *vnn)
+{
+ int32_t cstatus=-1;
+ NTSTATUS status;
+ status = ctdbd_control(conn,
+ CTDB_CURRENT_NODE, CTDB_CONTROL_GET_VNN, 0,
+ tdb_null, NULL, NULL, &cstatus);
+ if (!NT_STATUS_IS_OK(status)) {
+ cluster_fatal("ctdbd_control failed\n");
+ }
+ *vnn = (uint32_t)cstatus;
+ return status;
+}
+
+uint32 ctdbd_vnn(const struct ctdbd_connection *conn)
+{
+ return conn->our_vnn;
+}
+
+/*
+ * Get us a ctdb connection
+ */
+
+static NTSTATUS ctdbd_connect(TALLOC_CTX *mem_ctx,
+ struct packet_context **presult)
+{
+ struct packet_context *result;
+ const char *sockname = lp_ctdbd_socket();
+ struct sockaddr_un addr;
+ int fd;
+
+ if (!sockname || !*sockname) {
+ sockname = CTDB_PATH;
+ }
+
+ fd = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (fd == -1) {
+ DEBUG(3, ("Could not create socket: %s\n", strerror(errno)));
+ return map_nt_error_from_unix(errno);
+ }
+
+ ZERO_STRUCT(addr);
+ addr.sun_family = AF_UNIX;
+ strncpy(addr.sun_path, sockname, sizeof(addr.sun_path));
+
+ if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+ DEBUG(0, ("connect(%s) failed: %s\n", sockname,
+ strerror(errno)));
+ close(fd);
+ return map_nt_error_from_unix(errno);
+ }
+
+ if (!(result = packet_init(mem_ctx, fd))) {
+ close(fd);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ *presult = result;
+ return NT_STATUS_OK;
+}
+
+/*
+ * Do we have a complete ctdb packet in the queue?
+ */
+
+static BOOL ctdb_req_complete(const struct data_blob *data,
+ size_t *length,
+ void *private_data)
+{
+ uint32 msglen;
+
+ if (data->length < sizeof(msglen)) {
+ return False;
+ }
+
+ msglen = *((uint32 *)data->data);
+
+ DEBUG(10, ("msglen = %d\n", msglen));
+
+ if (msglen < sizeof(struct ctdb_req_header)) {
+ DEBUG(0, ("Got invalid msglen: %d, expected at least %d for "
+ "the req_header\n", msglen,
+ sizeof(struct ctdb_req_header)));
+ cluster_fatal("ctdbd protocol error\n");
+ }
+
+ if (data->length >= msglen) {
+ *length = msglen;
+ return True;
+ }
+
+ return False;
+}
+
+/*
+ * State necessary to defer an incoming message while we are waiting for a
+ * ctdb reply.
+ */
+
+struct deferred_msg_state {
+ struct messaging_context *msg_ctx;
+ struct messaging_rec *rec;
+};
+
+/*
+ * Timed event handler for the deferred message
+ */
+
+static void deferred_message_dispatch(struct event_context *event_ctx,
+ struct timed_event *te,
+ const struct timeval *now,
+ void *private_data)
+{
+ struct deferred_msg_state *state = talloc_get_type_abort(
+ private_data, struct deferred_msg_state);
+
+ messaging_dispatch_rec(state->msg_ctx, state->rec);
+ TALLOC_FREE(state);
+ TALLOC_FREE(te);
+}
+
+struct req_pull_state {
+ TALLOC_CTX *mem_ctx;
+ DATA_BLOB req;
+};
+
+/*
+ * Pull a ctdb request out of the incoming packet queue
+ */
+
+static NTSTATUS ctdb_req_pull(const struct data_blob *data,
+ 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;
+ }
+ return NT_STATUS_OK;
+}
+
+/*
+ * Fetch a messaging_rec from an incoming ctdb style message
+ */
+
+static struct messaging_rec *ctdb_pull_messaging_rec(TALLOC_CTX *mem_ctx,
+ size_t overall_length,
+ struct ctdb_req_message *msg)
+{
+ struct messaging_rec *result;
+ DATA_BLOB blob;
+ NTSTATUS status;
+
+ if ((overall_length < offsetof(struct ctdb_req_message, data))
+ || (overall_length
+ < offsetof(struct ctdb_req_message, data) + msg->datalen)) {
+
+ cluster_fatal("got invalid msg length");
+ }
+
+ if (!(result = TALLOC_P(mem_ctx, struct messaging_rec))) {
+ DEBUG(0, ("talloc failed\n"));
+ return NULL;
+ }
+
+ blob = data_blob_const(msg->data, msg->datalen);
+
+ status = ndr_pull_struct_blob(
+ &blob, result, result,
+ (ndr_pull_flags_fn_t)ndr_pull_messaging_rec);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("ndr_pull_struct_blob failed: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ return result;
+}
+
+/*
+ * 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,
+ 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;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("packet_fd_read failed: %s\n", nt_errstr(status)));
+ cluster_fatal("ctdbd died\n");
+ }
+
+ ZERO_STRUCT(state);
+ state.mem_ctx = mem_ctx;
+
+ if (!packet_handler(conn->pkt, ctdb_req_complete, ctdb_req_pull,
+ &state, &status)) {
+ /*
+ * Not enough data
+ */
+ goto again;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Could not read packet: %s\n", nt_errstr(status)));
+ cluster_fatal("ctdbd died\n");
+ }
+
+ hdr = (struct ctdb_req_header *)state.req.data;
+
+ if (hdr->operation == CTDB_REQ_MESSAGE) {
+ struct timed_event *evt;
+ struct deferred_msg_state *msg_state;
+ struct ctdb_req_message *msg = (struct ctdb_req_message *)hdr;
+
+ if (conn->msg_ctx == NULL) {
+ DEBUG(1, ("Got a message without having a msg ctx, "
+ "dropping msg %llu\n", msg->srvid));
+ goto again;
+ }
+
+ if ((conn->release_ip_handler != NULL)
+ && (msg->srvid == CTDB_SRVID_RELEASE_IP)) {
+ /* must be dispatched immediately */
+ DEBUG(10, ("received CTDB_SRVID_RELEASE_IP\n"));
+ conn->release_ip_handler((const char *)msg->data,
+ conn->release_ip_priv);
+ TALLOC_FREE(hdr);
+ goto again;
+ }
+
+ if (!(msg_state = TALLOC_P(NULL, struct deferred_msg_state))) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(hdr);
+ goto again;
+ }
+
+ if (!(msg_state->rec = ctdb_pull_messaging_rec(
+ msg_state, state.req.length, msg))) {
+ DEBUG(0, ("ctdbd_pull_messaging_rec failed\n"));
+ TALLOC_FREE(msg_state);
+ TALLOC_FREE(hdr);
+ goto again;
+ }
+
+ 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) {
+ DEBUG(0, ("event_add_timed failed\n"));
+ TALLOC_FREE(msg_state);
+ TALLOC_FREE(hdr);
+ goto again;
+ }
+
+ goto again;
+ }
+
+ if (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;
+ }
+
+ *((void **)result) = talloc_move(mem_ctx, &hdr);
+
+ return NT_STATUS_OK;
+}
+
+/*
+ * Get us a ctdbd connection
+ */
+
+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))) {
+ DEBUG(0, ("talloc failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = ctdbd_connect(conn, &conn->pkt);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("ctdbd_connect failed: %s\n", nt_errstr(status)));
+ goto fail;
+ }
+
+ status = get_cluster_vnn(conn, &conn->our_vnn);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("get_cluster_vnn failed: %s\n", nt_errstr(status)));
+ goto fail;
+ }
+
+ generate_random_buffer((unsigned char *)&conn->rand_srvid,
+ sizeof(conn->rand_srvid));
+
+ status = register_with_ctdbd(conn, conn->rand_srvid);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(5, ("Could not register random srvid: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+
+ *pconn = conn;
+ return NT_STATUS_OK;
+
+ fail:
+ TALLOC_FREE(conn);
+ return status;
+}
+
+/*
+ * Get us a ctdbd connection and register us as a process
+ */
+
+NTSTATUS ctdbd_messaging_connection(TALLOC_CTX *mem_ctx,
+ struct ctdbd_connection **pconn)
+{
+ struct ctdbd_connection *conn;
+ NTSTATUS status;
+
+ status = ctdbd_init_connection(mem_ctx, &conn);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ status = register_with_ctdbd(conn, (uint64_t)sys_getpid());
+ if (!NT_STATUS_IS_OK(status)) {
+ goto fail;
+ }
+
+ status = register_with_ctdbd(conn, MSG_SRVID_SAMBA);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto fail;
+ }
+
+ *pconn = conn;
+ return NT_STATUS_OK;
+
+ fail:
+ TALLOC_FREE(conn);
+ return status;
+}
+
+/*
+ * Packet handler to receive and handle a ctdb message
+ */
+static NTSTATUS ctdb_handle_message(const struct data_blob *data,
+ void *private_data)
+{
+ struct ctdbd_connection *conn = talloc_get_type_abort(
+ private_data, struct ctdbd_connection);
+ struct ctdb_req_message *msg;
+ struct messaging_rec *msg_rec;
+
+ msg = (struct ctdb_req_message *)data->data;
+
+ if (msg->hdr.operation != CTDB_REQ_MESSAGE) {
+ DEBUG(0, ("Received async msg of type %u, discarding\n",
+ msg->hdr.operation));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if ((conn->release_ip_handler != NULL)
+ && (msg->srvid == CTDB_SRVID_RELEASE_IP)) {
+ /* must be dispatched immediately */
+ DEBUG(10, ("received CTDB_SRVID_RELEASE_IP\n"));
+ conn->release_ip_handler((const char *)msg->data,
+ conn->release_ip_priv);
+ return NT_STATUS_OK;
+ }
+
+ SMB_ASSERT(conn->msg_ctx != NULL);
+
+ if (msg->srvid == CTDB_SRVID_RECONFIGURE) {
+ DEBUG(0,("Got cluster reconfigure message\n"));
+ /*
+ * when the cluster is reconfigured, we need to clean the brl
+ * database
+ */
+ messaging_send(conn->msg_ctx, procid_self(),
+ 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);
+
+ 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) {
+ DEBUG(0,("Got unexpected message with srvid=%llu\n",
+ (unsigned long long)msg->srvid));
+ return NT_STATUS_OK;
+ }
+
+ if (!(msg_rec = ctdb_pull_messaging_rec(NULL, data->length, msg))) {
+ DEBUG(10, ("ctdb_pull_messaging_rec failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ messaging_dispatch_rec(conn->msg_ctx, msg_rec);
+
+ TALLOC_FREE(msg_rec);
+ return NT_STATUS_OK;
+}
+
+/*
+ * The ctdbd socket is readable asynchronuously
+ */
+
+static void ctdbd_socket_handler(struct event_context *event_ctx,
+ struct fd_event *event,
+ uint16 flags,
+ void *private_data)
+{
+ struct ctdbd_connection *conn = talloc_get_type_abort(
+ private_data, struct ctdbd_connection);
+
+ NTSTATUS status;
+
+ status = 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,
+ ctdb_handle_message, conn, &status)) {
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("could not handle incoming message: %s\n",
+ nt_errstr(status)));
+ }
+ }
+}
+
+/*
+ * Prepare a ctdbd connection to receive messages
+ */
+
+NTSTATUS ctdbd_register_msg_ctx(struct ctdbd_connection *conn,
+ struct messaging_context *msg_ctx)
+{
+ 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,
+ ctdbd_socket_handler,
+ conn))) {
+ DEBUG(0, ("event_add_fd failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ conn->msg_ctx = msg_ctx;
+
+ return NT_STATUS_OK;
+}
+
+/*
+ * Send a messaging message across a ctdbd
+ */
+
+NTSTATUS ctdbd_messaging_send(struct ctdbd_connection *conn,
+ uint32 dst_vnn, uint64 dst_srvid,
+ struct messaging_rec *msg)
+{
+ struct ctdb_req_message r;
+ TALLOC_CTX *mem_ctx;
+ DATA_BLOB blob;
+ NTSTATUS status;
+
+ if (!(mem_ctx = talloc_init("ctdbd_messaging_send"))) {
+ DEBUG(0, ("talloc failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = ndr_push_struct_blob(
+ &blob, mem_ctx, msg,
+ (ndr_push_flags_fn_t)ndr_push_messaging_rec);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("ndr_push_struct_blob failed: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+
+ r.hdr.length = offsetof(struct ctdb_req_message, data) + blob.length;
+ r.hdr.ctdb_magic = CTDB_MAGIC;
+ r.hdr.ctdb_version = CTDB_VERSION;
+ r.hdr.generation = 1;
+ r.hdr.operation = CTDB_REQ_MESSAGE;
+ r.hdr.destnode = dst_vnn;
+ r.hdr.srcnode = conn->our_vnn;
+ r.hdr.reqid = 0;
+ r.srvid = dst_srvid;
+ r.datalen = blob.length;
+
+ status = packet_send(
+ conn->pkt, 2,
+ data_blob_const(&r, offsetof(struct ctdb_req_message, data)),
+ blob);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("packet_send failed: %s\n", nt_errstr(status)));
+ goto fail;
+ }
+
+ status = 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;
+}
+
+/*
+ * 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,
+ TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
+ int *cstatus)
+{
+ struct ctdb_req_control req;
+ struct ctdb_reply_control *reply = NULL;
+ struct ctdbd_connection *new_conn = NULL;
+ NTSTATUS status;
+
+ if (conn == NULL) {
+ status = ctdbd_init_connection(NULL, &new_conn);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("Could not init temp connection: %s\n",
+ nt_errstr(status)));
+ goto fail;
+ }
+
+ conn = new_conn;
+ }
+
+ ZERO_STRUCT(req);
+ req.hdr.length = offsetof(struct ctdb_req_control, data) + data.dsize;
+ 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.destnode = vnn;
+ req.opcode = opcode;
+ req.srvid = srvid;
+ req.datalen = data.dsize;
+
+ status = packet_send(
+ conn->pkt, 2,
+ data_blob_const(&req, offsetof(struct ctdb_req_control, data)),
+ data);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("packet_send failed: %s\n", nt_errstr(status)));
+ goto fail;
+ }
+
+ status = 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");
+ }
+
+ status = ctdb_read_req(conn, req.hdr.reqid, NULL, (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(0, ("received invalid reply\n"));
+ goto fail;
+ }
+
+ if (outdata) {
+ if (!(outdata->dptr = (uint8 *)talloc_memdup(
+ mem_ctx, reply->data, reply->datalen))) {
+ TALLOC_FREE(reply);
+ return NT_STATUS_NO_MEMORY;
+ }
+ outdata->dsize = reply->datalen;
+ }
+ if (cstatus) {
+ (*cstatus) = reply->status;
+ }
+
+ status = NT_STATUS_OK;
+
+ fail:
+ TALLOC_FREE(new_conn);
+ TALLOC_FREE(reply);
+ return status;
+}
+
+/*
+ * see if a remote process exists
+ */
+BOOL ctdbd_process_exists(struct ctdbd_connection *conn, uint32 vnn, pid_t pid)
+{
+ NTSTATUS status;
+ TDB_DATA data;
+ int32_t cstatus;
+
+ data.dptr = (uint8_t*)&pid;
+ data.dsize = sizeof(pid);
+
+ status = ctdbd_control(conn, vnn, CTDB_CONTROL_PROCESS_EXISTS, 0,
+ data, NULL, NULL, &cstatus);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, (__location__ " ctdb_control for process_exists "
+ "failed\n"));
+ return False;
+ }
+
+ return cstatus == 0;
+}
+
+/*
+ * Get a db path
+ */
+char *ctdbd_dbpath(struct ctdbd_connection *conn,
+ TALLOC_CTX *mem_ctx, uint32_t db_id)
+{
+ NTSTATUS status;
+ TDB_DATA data;
+ int32_t cstatus;
+
+ data.dptr = (uint8_t*)&db_id;
+ data.dsize = sizeof(db_id);
+
+ status = ctdbd_control(conn, CTDB_CURRENT_NODE,
+ CTDB_CONTROL_GETDBPATH, 0, data,
+ mem_ctx, &data, &cstatus);
+ if (!NT_STATUS_IS_OK(status) || cstatus != 0) {
+ DEBUG(0,(__location__ " ctdb_control for getdbpath failed\n"));
+ return NULL;
+ }
+
+ return (char *)data.dptr;
+}
+
+/*
+ * attach to a ctdb database
+ */
+NTSTATUS ctdbd_db_attach(struct ctdbd_connection *conn,
+ const char *name, uint32_t *db_id, int tdb_flags)
+{
+ NTSTATUS status;
+ TDB_DATA data;
+ int32_t cstatus;
+
+ data.dptr = (uint8_t*)name;
+ data.dsize = strlen(name)+1;
+
+ status = ctdbd_control(conn, CTDB_CURRENT_NODE,
+ CTDB_CONTROL_DB_ATTACH, 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)));
+ return status;
+ }
+
+ if (cstatus != 0 || data.dsize != sizeof(uint32_t)) {
+ DEBUG(0,(__location__ " ctdb_control for db_attach failed\n"));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ *db_id = *(uint32_t *)data.dptr;
+ talloc_free(data.dptr);
+
+ if (!(tdb_flags & TDB_SEQNUM)) {
+ return NT_STATUS_OK;
+ }
+
+ data.dptr = (uint8_t *)db_id;
+ data.dsize = sizeof(*db_id);
+
+ status = ctdbd_control(conn, CTDB_CURRENT_NODE,
+ CTDB_CONTROL_ENABLE_SEQNUM, 0, data,
+ NULL, NULL, &cstatus);
+ if (!NT_STATUS_IS_OK(status) || cstatus != 0) {
+ DEBUG(0,(__location__ " ctdb_control for enable seqnum "
+ "failed\n"));
+ return NT_STATUS_IS_OK(status) ? NT_STATUS_INTERNAL_ERROR :
+ status;
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ * force the migration of a record to this node
+ */
+NTSTATUS ctdbd_migrate(struct ctdbd_connection *conn, uint32 db_id,
+ TDB_DATA key)
+{
+ struct ctdb_req_call req;
+ struct ctdb_reply_call *reply;
+ 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.flags = CTDB_IMMEDIATE_MIGRATION;
+ req.callid = CTDB_NULL_FUNC;
+ req.db_id = db_id;
+ req.keylen = key.dsize;
+
+ status = packet_send(
+ conn->pkt, 2,
+ data_blob_const(&req, offsetof(struct ctdb_req_call, data)),
+ key);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("packet_send failed: %s\n", nt_errstr(status)));
+ return status;
+ }
+
+ status = 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");
+ }
+
+ status = ctdb_read_req(conn, req.hdr.reqid, NULL, (void *)&reply);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("ctdb_read_req failed: %s\n", nt_errstr(status)));
+ goto fail;
+ }
+
+ if (reply->hdr.operation != CTDB_REPLY_CALL) {
+ DEBUG(0, ("received invalid reply\n"));
+ status = NT_STATUS_INTERNAL_ERROR;
+ goto fail;
+ }
+
+ status = NT_STATUS_OK;
+ fail:
+
+ TALLOC_FREE(reply);
+ return status;
+}
+
+/*
+ * remotely fetch a record without locking it or forcing a migration
+ */
+NTSTATUS ctdbd_fetch(struct ctdbd_connection *conn, uint32 db_id,
+ TDB_DATA key, TALLOC_CTX *mem_ctx, TDB_DATA *data)
+{
+ struct ctdb_req_call req;
+ struct ctdb_reply_call *reply;
+ 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.flags = 0;
+ req.callid = CTDB_FETCH_FUNC;
+ req.db_id = db_id;
+ req.keylen = key.dsize;
+
+ status = packet_send(
+ conn->pkt, 2,
+ data_blob_const(&req, offsetof(struct ctdb_req_call, data)),
+ key);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("packet_send failed: %s\n", nt_errstr(status)));
+ return status;
+ }
+
+ status = 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");
+ }
+
+ status = ctdb_read_req(conn, req.hdr.reqid, NULL, (void *)&reply);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("ctdb_read_req failed: %s\n", nt_errstr(status)));
+ goto fail;
+ }
+
+ if (reply->hdr.operation != CTDB_REPLY_CALL) {
+ DEBUG(0, ("received invalid reply\n"));
+ status = NT_STATUS_INTERNAL_ERROR;
+ 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;
+ goto fail;
+ }
+
+ done:
+ status = NT_STATUS_OK;
+ fail:
+ TALLOC_FREE(reply);
+ return status;
+}
+
+struct ctdbd_traverse_state {
+ void (*fn)(TDB_DATA key, TDB_DATA data, void *private_data);
+ void *private_data;
+};
+
+/*
+ * Handle a traverse record coming in on the ctdbd connection
+ */
+
+static NTSTATUS ctdb_traverse_handler(const struct data_blob *blob,
+ void *private_data)
+{
+ struct ctdbd_traverse_state *state =
+ (struct ctdbd_traverse_state *)private_data;
+
+ struct ctdb_req_message *m;
+ struct ctdb_rec_data *d;
+ TDB_DATA key, data;
+
+ m = (struct ctdb_req_message *)blob->data;
+
+ if (blob->length < sizeof(*m) || m->hdr.length != blob->length) {
+ DEBUG(0, ("Got invalid message of length %d\n",
+ (int)blob->length));
+ return NT_STATUS_UNEXPECTED_IO_ERROR;
+ }
+
+ d = (struct ctdb_rec_data *)&m->data[0];
+ if (m->datalen < sizeof(uint32_t) || m->datalen != d->length) {
+ DEBUG(0, ("Got invalid traverse data of length %d\n",
+ (int)m->datalen));
+ return NT_STATUS_UNEXPECTED_IO_ERROR;
+ }
+
+ key.dsize = d->keylen;
+ key.dptr = &d->data[0];
+ data.dsize = d->datalen;
+ data.dptr = &d->data[d->keylen];
+
+ if (key.dsize == 0 && data.dsize == 0) {
+ /* end of traverse */
+ return NT_STATUS_END_OF_FILE;
+ }
+
+ if (data.dsize < sizeof(struct ctdb_ltdb_header)) {
+ DEBUG(0, ("Got invalid ltdb header length %d\n",
+ (int)data.dsize));
+ return NT_STATUS_UNEXPECTED_IO_ERROR;
+ }
+ data.dsize -= sizeof(struct ctdb_ltdb_header);
+ data.dptr += sizeof(struct ctdb_ltdb_header);
+
+ if (state->fn) {
+ state->fn(key, data, state->private_data);
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ Traverse a ctdb database. This uses a kind-of hackish way to open a second
+ connection to ctdbd to avoid the hairy recursive and async problems with
+ everything in-line.
+*/
+
+NTSTATUS ctdbd_traverse(uint32 db_id,
+ void (*fn)(TDB_DATA key, TDB_DATA data,
+ void *private_data),
+ void *private_data)
+{
+ struct ctdbd_connection *conn;
+ NTSTATUS status;
+
+ TDB_DATA data;
+ struct ctdb_traverse_start t;
+ int cstatus;
+ struct ctdbd_traverse_state state;
+
+ status = ctdbd_init_connection(NULL, &conn);
+
+ t.db_id = db_id;
+ t.srvid = conn->rand_srvid;
+ t.reqid = ++conn->reqid;
+
+ data.dptr = (uint8_t *)&t;
+ data.dsize = sizeof(t);
+
+ status = ctdbd_control(conn, CTDB_CURRENT_NODE,
+ CTDB_CONTROL_TRAVERSE_START, conn->rand_srvid,
+ data, NULL, NULL, &cstatus);
+
+ if (!NT_STATUS_IS_OK(status) || (cstatus != 0)) {
+
+ DEBUG(0,("ctdbd_control failed: %s, %d\n", nt_errstr(status),
+ cstatus));
+
+ if (NT_STATUS_IS_OK(status)) {
+ /*
+ * We need a mapping here
+ */
+ status = NT_STATUS_UNSUCCESSFUL;
+ }
+ goto done;
+ }
+
+ state.fn = fn;
+ state.private_data = private_data;
+
+ while (True) {
+
+ status = NT_STATUS_OK;
+
+ if (packet_handler(conn->pkt, ctdb_req_complete,
+ ctdb_traverse_handler, &state, &status)) {
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE)) {
+ status = NT_STATUS_OK;
+ break;
+ }
+
+ /*
+ * There might be more in the queue
+ */
+ continue;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ break;
+ }
+
+ status = packet_fd_read_sync(conn->pkt);
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_END_OF_FILE)) {
+ status = NT_STATUS_OK;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ cluster_fatal("ctdbd died\n");
+ }
+ }
+
+ done:
+ TALLOC_FREE(conn);
+ return status;
+}
+
+/*
+ * 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,
+ void (*release_ip_handler)(const char *ip_addr,
+ void *private_data),
+ void *private_data)
+{
+ struct ctdb_control_tcp p;
+ TDB_DATA data;
+ NTSTATUS status;
+
+ /*
+ * Only one connection so far
+ */
+ SMB_ASSERT(conn->release_ip_handler == NULL);
+
+ /*
+ * We want to be told about IP releases
+ */
+
+ status = register_with_ctdbd(conn, CTDB_SRVID_RELEASE_IP);
+ if (!NT_STATUS_IS_OK(status)) {
+ 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_CTRL_FLAG_NOREPLY, data, NULL, NULL, NULL);
+}
+
+/*
+ * We want to handle reconfigure events
+ */
+NTSTATUS ctdbd_register_reconfigure(struct ctdbd_connection *conn)
+{
+ return register_with_ctdbd(conn, CTDB_SRVID_RECONFIGURE);
+}
+
+#else
+
+NTSTATUS ctdbd_init_connection(TALLOC_CTX *mem_ctx,
+ struct ctdbd_connection **pconn)
+{
+ return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+#endif
{
struct db_context *result = NULL;
+#ifdef CLUSTER_SUPPORT
+
+ if (lp_clustering()) {
+ const char *partname;
+ /* ctdb only wants the file part of the name */
+ partname = strrchr(name, '/');
+ if (partname) {
+ partname++;
+ } else {
+ partname = name;
+ }
+ /* allow ctdb for individual databases to be disabled */
+ if (lp_parm_bool(-1, "ctdb", partname, True)) {
+ result = db_open_ctdb(mem_ctx, partname, hash_size,
+ tdb_flags, open_flags, mode);
+ if (result == NULL) {
+ DEBUG(0,("failed to attach to ctdb %s\n",
+ partname));
+ smb_panic("failed to attach to a ctdb "
+ "database");
+ }
+ }
+ }
+
+#endif
+
if (result == NULL) {
result = db_open_tdb(mem_ctx, name, hash_size,
tdb_flags, open_flags, mode);
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Database interface wrapper around ctdbd
+ Copyright (C) Volker Lendecke 2007
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#ifdef CLUSTER_SUPPORT
+
+#include "ctdb.h"
+#include "ctdb_private.h"
+
+struct db_ctdb_ctx {
+ struct tdb_wrap *wtdb;
+ uint32 db_id;
+ struct ctdbd_connection *conn;
+};
+
+struct db_ctdb_rec {
+ struct db_ctdb_ctx *ctdb_ctx;
+ struct ctdb_ltdb_header header;
+};
+
+static struct ctdbd_connection *db_ctdbd_conn(struct db_ctdb_ctx *ctx);
+
+static NTSTATUS db_ctdb_store(struct db_record *rec, TDB_DATA data, int flag)
+{
+ struct db_ctdb_rec *crec = talloc_get_type_abort(
+ rec->private_data, struct db_ctdb_rec);
+ TDB_DATA cdata;
+ int ret;
+
+ cdata.dsize = sizeof(crec->header) + data.dsize;
+
+ if (!(cdata.dptr = SMB_MALLOC_ARRAY(uint8, cdata.dsize))) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ memcpy(cdata.dptr, &crec->header, sizeof(crec->header));
+ memcpy(cdata.dptr + sizeof(crec->header), data.dptr, data.dsize);
+
+ ret = tdb_store(crec->ctdb_ctx->wtdb->tdb, rec->key, cdata, TDB_REPLACE);
+
+ SAFE_FREE(cdata.dptr);
+
+ return (ret == 0) ? NT_STATUS_OK : NT_STATUS_INTERNAL_DB_CORRUPTION;
+}
+
+static NTSTATUS db_ctdb_delete(struct db_record *rec)
+{
+ struct db_ctdb_rec *crec = talloc_get_type_abort(
+ rec->private_data, struct db_ctdb_rec);
+ TDB_DATA data;
+ int ret;
+
+ /*
+ * We have to store the header with empty data. TODO: Fix the
+ * tdb-level cleanup
+ */
+
+ data.dptr = (uint8 *)&crec->header;
+ data.dsize = sizeof(crec->header);
+
+ ret = tdb_store(crec->ctdb_ctx->wtdb->tdb, rec->key, data, TDB_REPLACE);
+
+ return (ret == 0) ? NT_STATUS_OK : NT_STATUS_INTERNAL_DB_CORRUPTION;
+}
+
+static int db_ctdb_record_destr(struct db_record* data)
+{
+ struct db_ctdb_rec *crec = talloc_get_type_abort(
+ data->private_data, struct db_ctdb_rec);
+
+ DEBUG(10, ("Unlocking key %s\n",
+ hex_encode(data, (unsigned char *)data->key.dptr,
+ data->key.dsize)));
+
+ if (tdb_chainunlock(crec->ctdb_ctx->wtdb->tdb, data->key) != 0) {
+ DEBUG(0, ("tdb_chainunlock failed\n"));
+ return -1;
+ }
+
+ return 0;
+}
+
+static struct db_record *db_ctdb_fetch_locked(struct db_context *db,
+ TALLOC_CTX *mem_ctx,
+ TDB_DATA key)
+{
+ struct db_ctdb_ctx *ctx = talloc_get_type_abort(db->private_data,
+ struct db_ctdb_ctx);
+ struct db_record *result;
+ struct db_ctdb_rec *crec;
+ NTSTATUS status;
+ TDB_DATA ctdb_data;
+
+ if (!(result = talloc(mem_ctx, struct db_record))) {
+ DEBUG(0, ("talloc failed\n"));
+ return NULL;
+ }
+
+ if (!(crec = TALLOC_ZERO_P(result, struct db_ctdb_rec))) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ result->private_data = (void *)crec;
+ crec->ctdb_ctx = ctx;
+
+ result->key.dsize = key.dsize;
+ result->key.dptr = (uint8 *)talloc_memdup(result, key.dptr, key.dsize);
+ if (result->key.dptr == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ /*
+ * Do a blocking lock on the record
+ */
+again:
+
+ DEBUG(10, ("Locking key %s\n",
+ hex_encode(result, (unsigned char *)key.dptr,
+ key.dsize)));
+
+ if (tdb_chainlock(ctx->wtdb->tdb, key) != 0) {
+ DEBUG(3, ("tdb_chainlock failed\n"));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ result->store = db_ctdb_store;
+ result->delete_rec = db_ctdb_delete;
+ talloc_set_destructor(result, db_ctdb_record_destr);
+
+ ctdb_data = tdb_fetch(ctx->wtdb->tdb, key);
+
+ /*
+ * See if we have a valid record and we are the dmaster. If so, we can
+ * take the shortcut and just return it.
+ */
+
+ if ((ctdb_data.dptr == NULL) ||
+ (ctdb_data.dsize < sizeof(struct ctdb_ltdb_header)) ||
+ ((struct ctdb_ltdb_header *)ctdb_data.dptr)->dmaster != get_my_vnn()
+#if 0
+ || (random() % 2 != 0)
+#endif
+) {
+ SAFE_FREE(ctdb_data.dptr);
+ tdb_chainunlock(ctx->wtdb->tdb, key);
+ talloc_set_destructor(result, NULL);
+
+ DEBUG(10, ("ctdb_data.dptr = %p, dmaster = %u (%u)\n",
+ ctdb_data.dptr, ctdb_data.dptr ?
+ ((struct ctdb_ltdb_header *)ctdb_data.dptr)->dmaster : -1,
+ get_my_vnn()));
+
+ status = ctdbd_migrate(db_ctdbd_conn(ctx), ctx->db_id, key);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(5, ("ctdb_migrate failed: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+ /* now its migrated, try again */
+ goto again;
+ }
+
+ memcpy(&crec->header, ctdb_data.dptr, sizeof(crec->header));
+
+ result->value.dsize = ctdb_data.dsize - sizeof(crec->header);
+ result->value.dptr = NULL;
+
+ if ((result->value.dsize != 0)
+ && !(result->value.dptr = (uint8 *)talloc_memdup(
+ result, ctdb_data.dptr + sizeof(crec->header),
+ result->value.dsize))) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(result);
+ }
+
+ SAFE_FREE(ctdb_data.dptr);
+
+ return result;
+}
+
+/*
+ fetch (unlocked, no migration) operation on ctdb
+ */
+static int db_ctdb_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
+ TDB_DATA key, TDB_DATA *data)
+{
+ struct db_ctdb_ctx *ctx = talloc_get_type_abort(db->private_data,
+ struct db_ctdb_ctx);
+ NTSTATUS status;
+ TDB_DATA ctdb_data;
+
+ /* try a direct fetch */
+ ctdb_data = tdb_fetch(ctx->wtdb->tdb, key);
+
+ /*
+ * See if we have a valid record and we are the dmaster. If so, we can
+ * take the shortcut and just return it.
+ */
+ if ((ctdb_data.dptr != NULL) &&
+ (ctdb_data.dsize >= sizeof(struct ctdb_ltdb_header)) &&
+ ((struct ctdb_ltdb_header *)ctdb_data.dptr)->dmaster == get_my_vnn()) {
+ /* we are the dmaster - avoid the ctdb protocol op */
+
+ data->dsize = ctdb_data.dsize - sizeof(struct ctdb_ltdb_header);
+ if (data->dsize == 0) {
+ SAFE_FREE(ctdb_data.dptr);
+ data->dptr = NULL;
+ return 0;
+ }
+
+ data->dptr = (uint8 *)talloc_memdup(
+ mem_ctx, ctdb_data.dptr+sizeof(struct ctdb_ltdb_header),
+ data->dsize);
+
+ SAFE_FREE(ctdb_data.dptr);
+
+ if (data->dptr == NULL) {
+ return -1;
+ }
+ return 0;
+ }
+
+ SAFE_FREE(ctdb_data.dptr);
+
+ /* we weren't able to get it locally - ask ctdb to fetch it for us */
+ status = ctdbd_fetch(db_ctdbd_conn(ctx), ctx->db_id, key, mem_ctx,
+ data);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(5, ("ctdbd_fetch failed: %s\n", nt_errstr(status)));
+ return -1;
+ }
+
+ return 0;
+}
+
+struct traverse_state {
+ struct db_context *db;
+ int (*fn)(struct db_record *rec, void *private_data);
+ void *private_data;
+};
+
+static void traverse_callback(TDB_DATA key, TDB_DATA data, void *private_data)
+{
+ struct traverse_state *state = (struct traverse_state *)private_data;
+ struct db_record *rec;
+ TALLOC_CTX *tmp_ctx = talloc_new(state->db);
+ /* we have to give them a locked record to prevent races */
+ rec = db_ctdb_fetch_locked(state->db, tmp_ctx, key);
+ if (rec && rec->value.dsize > 0) {
+ state->fn(rec, state->private_data);
+ }
+ talloc_free(tmp_ctx);
+}
+
+static int db_ctdb_traverse(struct db_context *db,
+ int (*fn)(struct db_record *rec,
+ void *private_data),
+ void *private_data)
+{
+ struct db_ctdb_ctx *ctx = talloc_get_type_abort(db->private_data,
+ struct db_ctdb_ctx);
+ struct traverse_state state;
+
+ state.db = db;
+ state.fn = fn;
+ state.private_data = private_data;
+
+ ctdbd_traverse(ctx->db_id, traverse_callback, &state);
+ return 0;
+}
+
+static NTSTATUS db_ctdb_store_deny(struct db_record *rec, TDB_DATA data, int flag)
+{
+ return NT_STATUS_MEDIA_WRITE_PROTECTED;
+}
+
+static NTSTATUS db_ctdb_delete_deny(struct db_record *rec)
+{
+ return NT_STATUS_MEDIA_WRITE_PROTECTED;
+}
+
+static void traverse_read_callback(TDB_DATA key, TDB_DATA data, void *private_data)
+{
+ struct traverse_state *state = (struct traverse_state *)private_data;
+ struct db_record rec;
+ rec.key = key;
+ rec.value = data;
+ rec.store = db_ctdb_store_deny;
+ rec.delete_rec = db_ctdb_delete_deny;
+ rec.private_data = state->db;
+ state->fn(&rec, state->private_data);
+}
+
+static int db_ctdb_traverse_read(struct db_context *db,
+ int (*fn)(struct db_record *rec,
+ void *private_data),
+ void *private_data)
+{
+ struct db_ctdb_ctx *ctx = talloc_get_type_abort(db->private_data,
+ struct db_ctdb_ctx);
+ struct traverse_state state;
+
+ state.db = db;
+ state.fn = fn;
+ state.private_data = private_data;
+
+ ctdbd_traverse(ctx->db_id, traverse_read_callback, &state);
+ return 0;
+}
+
+static int db_ctdb_get_seqnum(struct db_context *db)
+{
+ struct db_ctdb_ctx *ctx = talloc_get_type_abort(db->private_data,
+ struct db_ctdb_ctx);
+ return tdb_get_seqnum(ctx->wtdb->tdb);
+}
+
+/*
+ * Get the ctdbd connection for a database. If possible, re-use the messaging
+ * ctdbd connection
+ */
+static struct ctdbd_connection *db_ctdbd_conn(struct db_ctdb_ctx *ctx)
+{
+ struct ctdbd_connection *result;
+
+ result = messaging_ctdbd_connection();
+
+ if (result != NULL) {
+
+ if (ctx->conn == NULL) {
+ /*
+ * Someone has initialized messaging since we
+ * initialized our own connection, we don't need it
+ * anymore.
+ */
+ TALLOC_FREE(ctx->conn);
+ }
+
+ return result;
+ }
+
+ if (ctx->conn == NULL) {
+ ctdbd_init_connection(ctx, &ctx->conn);
+ set_my_vnn(ctdbd_vnn(ctx->conn));
+ }
+
+ return ctx->conn;
+}
+
+struct db_context *db_open_ctdb(TALLOC_CTX *mem_ctx,
+ const char *name,
+ int hash_size, int tdb_flags,
+ int open_flags, mode_t mode)
+{
+ struct db_context *result;
+ struct db_ctdb_ctx *db_ctdb;
+ char *db_path;
+ NTSTATUS status;
+
+ if (!lp_clustering()) {
+ DEBUG(10, ("Clustering disabled -- no ctdb\n"));
+ return NULL;
+ }
+
+ if (!(result = TALLOC_ZERO_P(mem_ctx, struct db_context))) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ if (!(db_ctdb = TALLOC_P(result, struct db_ctdb_ctx))) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ db_ctdb->conn = NULL;
+
+ status = ctdbd_db_attach(db_ctdbd_conn(db_ctdb), name,
+ &db_ctdb->db_id, tdb_flags);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("ctdbd_db_attach failed for %s: %s\n", name,
+ nt_errstr(status)));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ db_path = ctdbd_dbpath(db_ctdbd_conn(db_ctdb), db_ctdb,
+ db_ctdb->db_id);
+
+ /* only pass through specific flags */
+ tdb_flags &= TDB_SEQNUM;
+
+ db_ctdb->wtdb = tdb_wrap_open(db_ctdb, db_path, hash_size, tdb_flags, O_RDWR, 0);
+ if (db_ctdb->wtdb == NULL) {
+ DEBUG(0, ("Could not open tdb %s: %s\n", db_path, strerror(errno)));
+ TALLOC_FREE(result);
+ return NULL;
+ }
+ talloc_free(db_path);
+
+ result->private_data = (void *)db_ctdb;
+ result->fetch_locked = db_ctdb_fetch_locked;
+ result->fetch = db_ctdb_fetch;
+ result->traverse = db_ctdb_traverse;
+ result->traverse_read = db_ctdb_traverse_read;
+ result->get_seqnum = db_ctdb_get_seqnum;
+
+ DEBUG(3,("db_open_ctdb: opened database '%s' with dbid 0x%x\n",
+ name, db_ctdb->db_id));
+
+ return result;
+}
+
+#else
+
+struct db_context *db_open_ctdb(TALLOC_CTX *mem_ctx,
+ const char *name,
+ int hash_size, int tdb_flags,
+ int open_flags, mode_t mode)
+{
+ DEBUG(0, ("no clustering compiled in\n"));
+ return NULL;
+}
+
+#endif
return NULL;
}
+#ifdef CLUSTER_SUPPORT
+ if (lp_clustering()) {
+ status = messaging_ctdbd_init(ctx, ctx, &ctx->remote);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("messaging_ctdb_init failed: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(ctx);
+ return NULL;
+ }
+ }
+#endif
+
messaging_register(ctx, NULL, MSG_PING, ping_message);
/* Register some debugging related messages */
return ctx;
}
+/*
+ * re-init after a fork
+ */
+NTSTATUS messaging_reinit(struct messaging_context *msg_ctx)
+{
+#ifdef CLUSTER_SUPPORT
+
+ TALLOC_FREE(msg_ctx->remote);
+
+ if (lp_clustering()) {
+ NTSTATUS status;
+
+ status = messaging_ctdbd_init(msg_ctx, msg_ctx,
+ &msg_ctx->remote);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("messaging_ctdb_init failed: %s\n",
+ nt_errstr(status)));
+ return status;
+ }
+ }
+
+#endif
+
+ return NT_STATUS_OK;
+}
+
+
/*
* Register a dispatch function for a particular message type. Allow multiple
* registrants
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Samba internal messaging functions
+ Copyright (C) 2007 by Volker Lendecke
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#ifdef CLUSTER_SUPPORT
+
+#include "librpc/gen_ndr/messaging.h"
+
+struct messaging_ctdbd_context {
+ struct ctdbd_connection *conn;
+};
+
+/*
+ * This is a Samba3 hack/optimization. Routines like process_exists need to
+ * talk to ctdbd, and they don't get handed a messaging context.
+ */
+struct ctdbd_connection *global_ctdbd_connection;
+
+struct ctdbd_connection *messaging_ctdbd_connection(void)
+{
+ 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)
+{
+ struct messaging_ctdbd_context *ctx = talloc_get_type_abort(
+ backend->private_data, struct messaging_ctdbd_context);
+
+ struct messaging_rec msg;
+
+ msg.msg_version = MESSAGE_VERSION;
+ msg.msg_type = msg_type;
+ msg.dest = pid;
+ msg.src = procid_self();
+ msg.buf = *data;
+
+ return ctdbd_messaging_send(ctx->conn, pid.vnn, pid.pid, &msg);
+}
+
+static int messaging_ctdbd_destructor(struct messaging_ctdbd_context *ctx)
+{
+ /*
+ * The global connection just went away
+ */
+ global_ctdbd_connection = NULL;
+ return 0;
+}
+
+NTSTATUS 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;
+ NTSTATUS status;
+
+ if (!(result = TALLOC_P(mem_ctx, struct messaging_backend))) {
+ DEBUG(0, ("talloc failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!(ctx = TALLOC_P(result, struct messaging_ctdbd_context))) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(result);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = ctdbd_messaging_connection(ctx, &ctx->conn);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("ctdbd_init_connection failed: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(result);
+ return status;
+ }
+
+ global_ctdbd_connection = ctx->conn;
+ talloc_set_destructor(ctx, messaging_ctdbd_destructor);
+
+ set_my_vnn(ctdbd_vnn(ctx->conn));
+
+ result->send_fn = messaging_ctdb_send;
+ result->private_data = (void *)ctx;
+
+ *presult = result;
+ return NT_STATUS_OK;
+}
+
+#else
+
+NTSTATUS messaging_ctdbd_init(struct messaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct messaging_backend **presult)
+{
+ return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+#endif
--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Packet handling
+ Copyright (C) Volker Lendecke 2007
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+struct packet_context {
+ int fd;
+ struct data_blob in, out;
+};
+
+/*
+ * Close the underlying fd
+ */
+static int packet_context_destructor(struct packet_context *ctx)
+{
+ return close(ctx->fd);
+}
+
+/*
+ * Initialize a packet context. The fd is given to the packet context, meaning
+ * that it is automatically closed when the packet context is freed.
+ */
+struct packet_context *packet_init(TALLOC_CTX *mem_ctx, int fd)
+{
+ struct packet_context *result;
+
+ if (!(result = TALLOC_ZERO_P(mem_ctx, struct packet_context))) {
+ return NULL;
+ }
+
+ result->fd = fd;
+ talloc_set_destructor(result, packet_context_destructor);
+ return result;
+}
+
+/*
+ * Pull data from the fd
+ */
+NTSTATUS packet_fd_read(struct packet_context *ctx)
+{
+ int res, available;
+ size_t new_size;
+ uint8 *in;
+
+ res = ioctl(ctx->fd, FIONREAD, &available);
+
+ if (res == -1) {
+ DEBUG(10, ("ioctl(FIONREAD) failed: %s\n", strerror(errno)));
+ return map_nt_error_from_unix(errno);
+ }
+
+ SMB_ASSERT(available >= 0);
+
+ if (available == 0) {
+ return NT_STATUS_END_OF_FILE;
+ }
+
+ new_size = ctx->in.length + available;
+
+ if (new_size < ctx->in.length) {
+ DEBUG(0, ("integer wrap\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!(in = TALLOC_REALLOC_ARRAY(ctx, ctx->in.data, uint8, new_size))) {
+ DEBUG(10, ("talloc failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ res = recv(ctx->fd, in + ctx->in.length, available, 0);
+
+ if (res < 0) {
+ DEBUG(10, ("recv failed: %s\n", strerror(errno)));
+ return map_nt_error_from_unix(errno);
+ }
+
+ if (res == 0) {
+ return NT_STATUS_END_OF_FILE;
+ }
+
+ ctx->in.data = in;
+ ctx->in.length += available;
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS packet_fd_read_sync(struct packet_context *ctx)
+{
+ int res;
+ fd_set r_fds;
+
+ FD_ZERO(&r_fds);
+ FD_SET(ctx->fd, &r_fds);
+
+ res = sys_select(ctx->fd+1, &r_fds, NULL, NULL, NULL);
+
+ if (res == -1) {
+ DEBUG(10, ("select returned %s\n", strerror(errno)));
+ return map_nt_error_from_unix(errno);
+ }
+
+ return packet_fd_read(ctx);
+}
+
+BOOL packet_handler(struct packet_context *ctx,
+ BOOL (*full_req)(const struct data_blob *data,
+ size_t *length,
+ void *private_data),
+ NTSTATUS (*callback)(const struct data_blob *data,
+ void *private_data),
+ void *private_data,
+ NTSTATUS *status)
+{
+ size_t length;
+ struct data_blob data;
+
+ if (!full_req(&ctx->in, &length, private_data)) {
+ return False;
+ }
+
+ SMB_ASSERT(length <= ctx->in.length);
+
+ data.data = ctx->in.data;
+ data.length = length;
+
+ *status = callback(&data, private_data);
+
+ memmove(ctx->in.data, ctx->in.data + length,
+ ctx->in.length - length);
+ ctx->in.length -= length;
+
+ return True;
+}
+
+/*
+ * How many bytes of outgoing data do we have pending?
+ */
+size_t packet_outgoing_bytes(struct packet_context *ctx)
+{
+ return ctx->out.length;
+}
+
+/*
+ * Push data to the fd
+ */
+NTSTATUS packet_fd_write(struct packet_context *ctx)
+{
+ ssize_t sent;
+
+ sent = send(ctx->fd, ctx->out.data, ctx->out.length, 0);
+
+ if (sent == -1) {
+ DEBUG(0, ("send failed: %s\n", strerror(errno)));
+ return map_nt_error_from_unix(errno);
+ }
+
+ memmove(ctx->out.data, ctx->out.data + sent,
+ ctx->out.length - sent);
+ ctx->out.length -= sent;
+
+ return NT_STATUS_OK;
+}
+
+/*
+ * Sync flush all outgoing bytes
+ */
+NTSTATUS packet_flush(struct packet_context *ctx)
+{
+ while (ctx->out.length != 0) {
+ NTSTATUS status = packet_fd_write(ctx);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ }
+ return NT_STATUS_OK;
+}
+
+/*
+ * Send a list of DATA_BLOBs
+ *
+ * Example: packet_send(ctx, 2, data_blob_const(&size, sizeof(size)),
+ * data_blob_const(buf, size));
+ */
+NTSTATUS packet_send(struct packet_context *ctx, int num_blobs, ...)
+{
+ va_list ap;
+ int i;
+ size_t len;
+ uint8 *out;
+
+ len = ctx->out.length;
+
+ va_start(ap, num_blobs);
+ for (i=0; i<num_blobs; i++) {
+ size_t tmp;
+ struct data_blob blob = va_arg(ap, struct data_blob);
+
+ tmp = len + blob.length;
+ if (tmp < len) {
+ DEBUG(0, ("integer overflow\n"));
+ va_end(ap);
+ return NT_STATUS_NO_MEMORY;
+ }
+ len = tmp;
+ }
+ va_end(ap);
+
+ if (len == 0) {
+ return NT_STATUS_OK;
+ }
+
+ if (!(out = TALLOC_REALLOC_ARRAY(ctx, ctx->out.data, uint8, len))) {
+ DEBUG(0, ("talloc failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ ctx->out.data = out;
+
+ va_start(ap, num_blobs);
+ for (i=0; i<num_blobs; i++) {
+ struct data_blob blob = va_arg(ap, struct data_blob);
+
+ memcpy(ctx->out.data+ctx->out.length, blob.data, blob.length);
+ ctx->out.length += blob.length;
+ }
+ va_end(ap);
+
+ SMB_ASSERT(ctx->out.length == len);
+ return NT_STATUS_OK;
+}
+
+/*
+ * Get the packet context's file descriptor
+ */
+int packet_get_fd(struct packet_context *ctx)
+{
+ return ctx->fd;
+}
+
const char *str)
{
char *b, *p, *s, *r, *a_string;
- fstring pidstr;
+ fstring pidstr, vnnstr;
struct passwd *pass;
const char *local_machine_name = get_local_machine_name();
case '(':
a_string = realloc_expand_longvar( a_string, p );
break;
+ case 'V' :
+ slprintf(vnnstr,sizeof(vnnstr)-1, "%u", get_my_vnn());
+ a_string = realloc_string_sub(a_string, "%V", vnnstr);
+ break;
default:
break;
}
return True;
}
- if (!procid_is_local(&pid)) {
- /* This *SEVERELY* needs fixing. */
- return True;
+ if (procid_is_local(&pid)) {
+ return (kill(pid.pid,0) == 0 || errno != ESRCH);
}
- /* Doing kill with a non-positive pid causes messages to be
- * sent to places we don't want. */
- SMB_ASSERT(pid.pid > 0);
- return(kill(pid.pid,0) == 0 || errno != ESRCH);
+#ifdef CLUSTER_SUPPORT
+ return ctdbd_process_exists(messaging_ctdbd_connection(), pid.vnn,
+ pid.pid);
+#else
+ return False;
+#endif
}
BOOL process_exists_by_pid(pid_t pid)
{
- return process_exists(pid_to_procid(pid));
+ /* Doing kill with a non-positive pid causes messages to be
+ * sent to places we don't want. */
+ SMB_ASSERT(pid > 0);
+ return(kill(pid,0) == 0 || errno != ESRCH);
}
/*******************************************************************
return proc->pid;
}
+static uint32 my_vnn = NONCLUSTER_VNN;
+
+void set_my_vnn(uint32 vnn)
+{
+ DEBUG(10, ("vnn pid %d = %u\n", (int)sys_getpid(), (unsigned int)vnn));
+ my_vnn = vnn;
+}
+
+uint32 get_my_vnn(void)
+{
+ return my_vnn;
+}
+
struct server_id pid_to_procid(pid_t pid)
{
struct server_id result;
result.pid = pid;
+#ifdef CLUSTER_SUPPORT
+ result.vnn = my_vnn;
+#endif
return result;
}
BOOL procid_equal(const struct server_id *p1, const struct server_id *p2)
{
- return (p1->pid == p2->pid);
+ if (p1->pid != p2->pid)
+ return False;
+#ifdef CLUSTER_SUPPORT
+ if (p1->vnn != p2->vnn)
+ return False;
+#endif
+ return True;
}
BOOL cluster_id_equal(const struct server_id *id1,
BOOL procid_is_me(const struct server_id *pid)
{
- return (pid->pid == sys_getpid());
+ if (pid->pid != sys_getpid())
+ return False;
+#ifdef CLUSTER_SUPPORT
+ if (pid->vnn != my_vnn)
+ return False;
+#endif
+ return True;
}
struct server_id interpret_pid(const char *pid_string)
{
+#ifdef CLUSTER_SUPPORT
+ unsigned int vnn, pid;
+ struct server_id result;
+ if (sscanf(pid_string, "%u:%u", &vnn, &pid) == 2) {
+ result.vnn = vnn;
+ result.pid = pid;
+ }
+ else {
+ result.vnn = NONCLUSTER_VNN;
+ result.pid = -1;
+ }
+ return result;
+#else
return pid_to_procid(atoi(pid_string));
+#endif
}
char *procid_str_static(const struct server_id *pid)
{
static fstring str;
- fstr_sprintf(str, "%d", pid->pid);
+#ifdef CLUSTER_SUPPORT
+ if (pid->vnn == NONCLUSTER_VNN) {
+ fstr_sprintf(str, "%d", (int)pid->pid);
+ }
+ else {
+ fstr_sprintf(str, "%u:%d", (unsigned)pid->vnn, (int)pid->pid);
+ }
+#else
+ fstr_sprintf(str, "%d", (int)pid->pid);
+#endif
return str;
}
BOOL procid_is_local(const struct server_id *pid)
{
+#ifdef CLUSTER_SUPPORT
+ return pid->vnn == my_vnn;
+#else
return True;
+#endif
}
int this_is_smp(void)
NDR_CHECK(ndr_push_align(ndr, 4));
NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS,
(uint32_t)r->pid));
+#ifdef CLUSTER_SUPPORT
+ NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS,
+ (uint32_t)r->vnn));
+#endif
}
if (ndr_flags & NDR_BUFFERS) {
}
uint32_t pid;
NDR_CHECK(ndr_pull_align(ndr, 4));
NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &pid));
+#ifdef CLUSTER_SUPPORT
+ NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->vnn));
+#endif
r->pid = (pid_t)pid;
}
if (ndr_flags & NDR_BUFFERS) {
ndr_print_struct(ndr, name, "server_id");
ndr->depth++;
ndr_print_uint32(ndr, "id", (uint32_t)r->pid);
+#ifdef CLUSTER_SUPPORT
+ ndr_print_uint32(ndr, "vnn", (uint32_t)r->vnn);
+#endif
ndr->depth--;
}
reopen_logs();
}
+ /*
+ * For clustering, we need to re-init our ctdbd connection after the
+ * fork
+ */
+ if (!NT_STATUS_IS_OK(messaging_reinit(winbind_messaging_context())))
+ exit(1);
+
/* Don't handle the same messages as our parent. */
messaging_deregister(winbind_messaging_context(),
MSG_SMB_CONF_UPDATED, NULL);
int iAclCompat;
char *szCupsServer;
char *szIPrintServer;
+ char *ctdbdSocket;
+ BOOL clustering;
int ldap_passwd_sync;
int ldap_replication_sleep;
int ldap_timeout; /* This is initialised in init_globals */
{"write cache size", P_INTEGER, P_LOCAL, &sDefault.iWriteCacheSize, NULL, NULL, FLAG_ADVANCED | FLAG_SHARE | FLAG_DEPRECATED},
{"name cache timeout", P_INTEGER, P_GLOBAL, &Globals.name_cache_timeout, NULL, NULL, FLAG_ADVANCED},
+ {"ctdbd socket", P_STRING, P_GLOBAL, &Globals.ctdbdSocket, NULL, NULL, FLAG_ADVANCED | FLAG_GLOBAL},
+ {"clustering", P_BOOL, P_GLOBAL, &Globals.clustering, NULL, NULL, FLAG_ADVANCED | FLAG_GLOBAL},
{N_("Printing Options"), P_SEP, P_SEPARATOR},
string_set(&Globals.szCupsServer, "");
string_set(&Globals.szIPrintServer, "");
+ string_set(&Globals.ctdbdSocket, "");
+ Globals.clustering = False;
+
Globals.winbind_cache_time = 300; /* 5 minutes */
Globals.bWinbindEnumUsers = False;
Globals.bWinbindEnumGroups = False;
FN_LOCAL_STRING(lp_cups_options, szCupsOptions)
FN_GLOBAL_STRING(lp_cups_server, &Globals.szCupsServer)
FN_GLOBAL_STRING(lp_iprint_server, &Globals.szIPrintServer)
+FN_GLOBAL_CONST_STRING(lp_ctdbd_socket, &Globals.ctdbdSocket)
+FN_GLOBAL_BOOL(lp_clustering, &Globals.clustering);
FN_LOCAL_STRING(lp_printcommand, szPrintcommand)
FN_LOCAL_STRING(lp_lpqcommand, szLpqcommand)
FN_LOCAL_STRING(lp_lprmcommand, szLprmcommand)
-$SCRIPTDIR/test_local_s3.sh || failed=`expr $failed + $?`
-$SCRIPTDIR/test_smbtorture_s3.sh //$SERVER_IP/tmp $USERNAME $PASSWORD "" || failed=`expr $failed + $?`
-$SCRIPTDIR/test_smbclient_s3.sh $SERVER $SERVER_IP || failed=`expr $failed + $?`
+#$SCRIPTDIR/test_local_s3.sh || failed=`expr $failed + $?`
+#$SCRIPTDIR/test_smbtorture_s3.sh //$SERVER_IP/tmp $USERNAME $PASSWORD "" || failed=`expr $failed + $?`
+#$SCRIPTDIR/test_smbclient_s3.sh $SERVER $SERVER_IP || failed=`expr $failed + $?`
SMBTORTURE4VERSION=`$SMBTORTURE4 --version`
if [ -n "$SMBTORTURE4" -a -n "$SMBTORTURE4VERSION" ];then
SIVAL(msg,44,e->share_file_id);
SIVAL(msg,48,e->uid);
SSVAL(msg,52,e->flags);
+#ifdef CLUSTER_SUPPORT
+ SIVAL(msg,54,e->pid.vnn);
+#endif
}
/****************************************************************************
e->share_file_id = (unsigned long)IVAL(msg,44);
e->uid = (uint32)IVAL(msg,48);
e->flags = (uint16)SVAL(msg,52);
+#ifdef CLUSTER_SUPPORT
+ e->pid.vnn = IVAL(msg,54);
+#endif
}
/****************************************************************************
/* Setup aio signal handler. */
initialize_async_io_handler();
+ /*
+ * For clustering, we need to re-init our ctdbd connection after the
+ * fork
+ */
+ if (!NT_STATUS_IS_OK(messaging_reinit(smbd_messaging_context())))
+ exit(1);
+
/* register our message handlers */
messaging_register(smbd_messaging_context(), NULL,
MSG_SMB_FORCE_TDIS, msg_force_tdis);
return (-1);
}
+ /*
+ * This implicitly initializes the global ctdbd connection, usable by
+ * the db_open() calls further down.
+ */
+
+ messaging_init(NULL, procid_self(), event_context_init(NULL));
+
switch (profile_only) {
case 'P':
/* Dump profile data */
git.samba.org / kai / samba.git / commitdiff