Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 199 insertions, 0 deletions

diff --git a/source3/utils/net_notify.c b/source3/utils/net_notify.c
new file mode 100644
index 0000000..eddfb0e
--- /dev/null
+++ b/source3/utils/net_notify.c
@@ -0,0 +1,199 @@
+/*
+ * Samba Unix/Linux notifyd client code
+ * Copyright (C) 2015 Volker Lendecke <vl@samba.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+#include "utils/net.h"
+#include "lib/util/server_id.h"
+#include "lib/util/tevent_unix.h"
+#include "lib/util/server_id_db.h"
+#include "messages.h"
+#include "source3/smbd/notifyd/notifyd.h"
+
+static void net_notify_got_event(struct messaging_context *msg,
+				 void *private_data,
+				 uint32_t msg_type,
+				 struct server_id server_id,
+				 DATA_BLOB *data)
+{
+	struct notify_event_msg *event_msg;
+
+	if (data->length < offsetof(struct notify_event_msg, path) + 1) {
+		d_fprintf(stderr, "message too short\n");
+		return;
+	}
+	if (data->data[data->length-1] != 0) {
+		d_fprintf(stderr, "path not 0-terminated\n");
+		return;
+	}
+
+	event_msg = (struct notify_event_msg *)data->data;
+
+	d_printf("%u %s\n", (unsigned)event_msg->action,
+		 event_msg->path);
+}
+
+static int net_notify_listen(struct net_context *c, int argc,
+			     const char **argv)
+{
+	struct messaging_context *msg_ctx = c->msg_ctx;
+	struct tevent_context *ev = messaging_tevent_context(msg_ctx);
+	struct server_id_db *names_db = messaging_names_db(msg_ctx);
+	struct server_id notifyd;
+	struct server_id_buf idbuf;
+	struct notify_rec_change_msg msg;
+	struct iovec iov[2];
+	NTSTATUS status;
+	bool ok;
+
+	if (argc != 3) {
+		d_printf("Usage: net notify listen <path> <filter> "
+			 "<subdir-filter>\n");
+		return -1;
+	}
+
+	ok = server_id_db_lookup_one(names_db, "notify-daemon", &notifyd);
+	if (!ok) {
+		fprintf(stderr, "no notify daemon found\n");
+		return -1;
+	}
+
+	printf("notify daemon: %s\n", server_id_str_buf(notifyd, &idbuf));
+
+	msg = (struct notify_rec_change_msg) {
+		.instance.filter = atoi(argv[1]),
+		.instance.subdir_filter = atoi(argv[2])
+	};
+	iov[0] = (struct iovec) {
+		.iov_base = &msg,
+		.iov_len = offsetof(struct notify_rec_change_msg, path)
+	};
+	iov[1] = (struct iovec) {
+		.iov_base = discard_const_p(char, argv[0]),
+		.iov_len = strlen(argv[0])+1
+	};
+
+	status = messaging_register(c->msg_ctx, NULL, MSG_PVFS_NOTIFY,
+				    net_notify_got_event);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_fprintf(stderr, "messaging_register failed: %s\n",
+			  nt_errstr(status));
+		return -1;
+	}
+
+	status = messaging_send_iov(
+		c->msg_ctx, notifyd, MSG_SMB_NOTIFY_REC_CHANGE,
+		iov, ARRAY_SIZE(iov), NULL, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_fprintf(stderr, "Sending rec_change to %s returned %s\n",
+			  server_id_str_buf(notifyd, &idbuf),
+			  nt_errstr(status));
+		return -1;
+	}
+
+	while (true) {
+		int ret;
+
+		ret = tevent_loop_once(ev);
+		if (ret != 0) {
+			d_fprintf(stderr, "tevent_loop_once failed: %s\n",
+				  strerror(errno));
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static int net_notify_trigger(struct net_context *c, int argc,
+			      const char **argv)
+{
+	struct messaging_context *msg_ctx = c->msg_ctx;
+	struct server_id_db *names_db = messaging_names_db(msg_ctx);
+	struct server_id notifyd;
+	struct server_id_buf idbuf;
+	struct notify_trigger_msg msg;
+	struct iovec iov[2];
+	NTSTATUS status;
+	bool ok;
+
+	if (argc != 3) {
+		d_printf("Usage: net notify trigger <path> <action> "
+			 "<filter>\n");
+		return -1;
+	}
+
+	ok = server_id_db_lookup_one(names_db, "notify-daemon", &notifyd);
+	if (!ok) {
+		fprintf(stderr, "no notify daemon found\n");
+		return -1;
+	}
+
+	printf("notify daemon: %s\n", server_id_str_buf(notifyd, &idbuf));
+
+	msg = (struct notify_trigger_msg) {
+		.action = atoi(argv[1]), .filter = atoi(argv[2])
+	};
+
+	iov[0] = (struct iovec) {
+		.iov_base = &msg,
+		.iov_len = offsetof(struct notify_trigger_msg, path)
+	};
+	iov[1] = (struct iovec) {
+		.iov_base = discard_const_p(char, argv[0]),
+		.iov_len = strlen(argv[0])+1
+	};
+
+	status = messaging_send_iov(
+		c->msg_ctx, notifyd, MSG_SMB_NOTIFY_TRIGGER,
+		iov, ARRAY_SIZE(iov), NULL, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_printf("Sending rec_change to %s returned %s\n",
+			 server_id_str_buf(notifyd, &idbuf),
+			 nt_errstr(status));
+		return -1;
+	}
+
+	return 0;
+}
+
+int net_notify(struct net_context *c, int argc, const char **argv)
+{
+	struct functable func[] = {
+		{ "listen",
+		  net_notify_listen,
+		  NET_TRANSPORT_LOCAL,
+		  N_("Register for a path and listen for changes"),
+		  N_("net notify listen <path>")
+		},
+		{ "trigger",
+		  net_notify_trigger,
+		  NET_TRANSPORT_LOCAL,
+		  N_("Simulate a trigger action"),
+		  N_("net notify trigger <path> <action> <filter>")
+		},
+		{NULL, NULL, 0, NULL, NULL}
+	};
+
+	if (c->msg_ctx == NULL) {
+		d_fprintf(stderr, "No connection to messaging, need to run "
+			  "as root\n");
+		return -1;
+	}
+
+	return net_run_function(c, argc, argv, "net notify", func);
+}