[PATCH RFC 10/23] xenstored: add the FreeBSD xenstored interface

[Roger Pau Monne <roger.pau@citrix.com>]

This patch adds FreeBSD support to xenstored, by implementing the
FreeBSD interface to /dev/xen/xenstored.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
---
 tools/xenstore/Makefile            |    1 +
 tools/xenstore/xenstored_freebsd.c |   72 ++++++++++++++++++++++++++++++++++++
 tools/xenstore/xs_lib.c            |    2 +
 3 files changed, 75 insertions(+), 0 deletions(-)
 create mode 100644 tools/xenstore/xenstored_freebsd.c

diff --git a/tools/xenstore/Makefile b/tools/xenstore/Makefile
index 262f401..0b2b2c7 100644
--- a/tools/xenstore/Makefile
+++ b/tools/xenstore/Makefile
@@ -14,6 +14,7 @@ CLIENTS += xenstore-write xenstore-ls xenstore-watch
 XENSTORED_OBJS = xenstored_core.o xenstored_watch.o xenstored_domain.o xenstored_transaction.o xs_lib.o talloc.o utils.o tdb.o hashtable.o
 
 XENSTORED_OBJS_$(CONFIG_Linux) = xenstored_linux.o xenstored_posix.o
+XENSTORED_OBJS_$(CONFIG_FreeBSD) = xenstored_freebsd.o xenstored_posix.o
 XENSTORED_OBJS_$(CONFIG_SunOS) = xenstored_solaris.o xenstored_posix.o xenstored_probes.o
 XENSTORED_OBJS_$(CONFIG_NetBSD) = xenstored_netbsd.o xenstored_posix.o
 XENSTORED_OBJS_$(CONFIG_MiniOS) = xenstored_minios.o
diff --git a/tools/xenstore/xenstored_freebsd.c b/tools/xenstore/xenstored_freebsd.c
new file mode 100644
index 0000000..f4e5fc2
--- /dev/null
+++ b/tools/xenstore/xenstored_freebsd.c
@@ -0,0 +1,72 @@
+/******************************************************************************
+ *
+ * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (C) 2005 Rusty Russell IBM Corporation
+ *
+ * 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, version 2 of the
+ * License.
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+
+#include "xenstored_core.h"
+
+#define XENSTORED_DEV  "/dev/xen/xenstored"
+
+evtchn_port_t xenbus_evtchn(void)
+{
+	int fd;
+	int rc;
+	evtchn_port_t port;
+	char str[20];
+
+	fd = open(XENSTORED_DEV, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	rc = read(fd, str, sizeof(str) - 1);
+	if (rc == -1)
+	{
+		int err = errno;
+		close(fd);
+		errno = err;
+		return -1;
+	}
+
+	str[rc] = '\0';
+	port = strtoul(str, NULL, 0);
+
+	close(fd);
+	return port;
+}
+
+void *xenbus_map(void)
+{
+	int fd;
+	void *addr;
+
+	fd = open(XENSTORED_DEV, O_RDWR);
+	if (fd == -1)
+		return NULL;
+
+	addr = mmap(NULL, getpagesize(), PROT_READ|PROT_WRITE,
+		MAP_SHARED, fd, 0);
+
+	if (addr == MAP_FAILED)
+		addr = NULL;
+
+	close(fd);
+
+	return addr;
+}
+
+void xenbus_notify_running(void)
+{
+}
diff --git a/tools/xenstore/xs_lib.c b/tools/xenstore/xs_lib.c
index f7076cc..dfbeff1 100644
--- a/tools/xenstore/xs_lib.c
+++ b/tools/xenstore/xs_lib.c
@@ -84,6 +84,8 @@ const char *xs_domain_dev(void)
 	return "/proc/xen/xenbus";
 #elif defined(__NetBSD__)
 	return "/kern/xen/xenbus";
+#elif defined(__FreeBSD__)
+	return "/dev/xen/xenstore";
 #else
 	return "/dev/xen/xenbus";
 #endif
-- 
1.7.7.5 (Apple Git-26)


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