1 files changed, 195 insertions, 0 deletions
diff --git a/usr/src/lib/libsmbfs/smb/iod_cl.c b/usr/src/lib/libsmbfs/smb/iod_cl.c
new file mode 100644
index 0000000000..b28ffdb39a
--- /dev/null
+++ b/usr/src/lib/libsmbfs/smb/iod_cl.c
@@ -0,0 +1,195 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * Client-side interface to the IO Daemon (IOD)
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <netdb.h>
+#include <libintl.h>
+#include <door.h>
+
+#include <sys/byteorder.h>
+#include <sys/types.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <arpa/inet.h>
+
+#include <netsmb/smb_lib.h>
+#include <netsmb/netbios.h>
+#include <netsmb/nb_lib.h>
+#include <netsmb/smb_dev.h>
+
+#include "charsets.h"
+#include "private.h"
+
+static const char smbiod_path[] = "/usr/lib/smbfs/smbiod";
+
+/*
+ * This is constant for the life of a process,
+ * and initialized at startup, so no locks.
+ */
+static char door_path[40];
+
+char *
+smb_iod_door_path(void)
+{
+	static const char fmtR[] = "/var/run/smbiod-%d";
+	static const char fmtU[] = "/tmp/.smbiod-%d";
+	const char *fmt;
+	uid_t uid;
+
+	if (door_path[0] == '\0') {
+		uid = getuid();
+		fmt = (uid == 0) ? fmtR : fmtU;
+		snprintf(door_path, sizeof (door_path), fmt, uid);
+	}
+
+	return (door_path);
+}
+
+/*
+ * Open the door (client side) and
+ * find out if the service is there.
+ */
+int
+smb_iod_open_door(int *fdp)
+{
+	door_arg_t da;
+	char *path;
+	int fd, rc;
+	int err = 0;
+
+	path = smb_iod_door_path();
+	fd = open(path, O_RDONLY, 0);
+	if (fd < 0)
+		return (errno);
+
+	/*
+	 * Make sure the IOD is running.
+	 * Pass NULL args.
+	 */
+	memset(&da, 0, sizeof (da));
+	da.rbuf = (void *) &err;
+	da.rsize = sizeof (err);
+	rc = door_call(fd, &da);
+	if (rc < 0) {
+		err = errno;
+		close(fd);
+		return (err);
+	}
+	if (err != 0) {
+		close(fd);
+		return (err);
+	}
+
+	/* This handle controls per-process resources. */
+	(void) fcntl(fd, F_SETFD, FD_CLOEXEC);
+
+	*fdp = fd;
+	return (0);
+}
+
+/*
+ * Start the IOD and wait until we can
+ * open its client-side door.
+ */
+static int
+start_iod(int *fdp)
+{
+	int err, pid, t;
+
+	pid = vfork();
+	if (pid < 0)
+		return (errno);
+
+	/*
+	 * child: start smbiod
+	 */
+	if (pid == 0) {
+		char *argv[2];
+		argv[0] = "smbiod";
+		argv[1] = NULL;
+		execv(smbiod_path, argv);
+		return (errno);
+	}
+
+	/*
+	 * parent: wait for smbiod to start
+	 */
+	for (t = 0; t < 10; t++) {
+		sleep(1);
+		err = smb_iod_open_door(fdp);
+		if (err == 0)
+			break;
+	}
+
+	return (err);
+}
+
+
+/*
+ * Start smbiod if necessary, and then
+ * ask it to connect using the info in ctx.
+ */
+int
+smb_iod_cl_newvc(smb_ctx_t *ctx)
+{
+	door_arg_t da;
+	int fd, err = 0;
+
+	err = smb_iod_open_door(&fd);
+	if (err != 0) {
+		err = start_iod(&fd);
+		if (err)
+			return (err);
+	}
+
+	da.data_ptr = (void *) &ctx->ct_iod_ssn;
+	da.data_size = sizeof (ctx->ct_iod_ssn);
+	da.desc_ptr = NULL;
+	da.desc_num = 0;
+	da.rbuf = (void *) &err;
+	da.rsize = sizeof (err);
+	if (door_call(fd, &da) < 0) {
+		err = errno;
+		DPRINT("door_call, err=%d", err);
+	}
+	close(fd);
+
+	return (err);
+}