[optional][PATCH v3 14/16] Add xen-vmware-guestinfo

[Don Slutz <dslutz@verizon.com>]

A tool to get and set VMware guestinfo

Signed-off-by: Don Slutz <dslutz@verizon.com>
---
 .gitignore                        |  1 +
 tools/misc/Makefile               |  7 ++-
 tools/misc/xen-vmware-guestinfo.c | 97 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 103 insertions(+), 2 deletions(-)
 create mode 100644 tools/misc/xen-vmware-guestinfo.c

diff --git a/.gitignore b/.gitignore
index 0f98619..ad86210 100644
--- a/.gitignore
+++ b/.gitignore
@@ -181,6 +181,7 @@ tools/misc/xenperf
 tools/misc/xenpm
 tools/misc/xen-hvmctx
 tools/misc/xen-hvm-param
+tools/misc/xen-vmware-guestinfo
 tools/misc/gtraceview
 tools/misc/gtracestat
 tools/misc/xenlockprof
diff --git a/tools/misc/Makefile b/tools/misc/Makefile
index b8d4579..f2ffe1a 100644
--- a/tools/misc/Makefile
+++ b/tools/misc/Makefile
@@ -10,7 +10,7 @@ CFLAGS += $(CFLAGS_libxenstore)
 HDRS     = $(wildcard *.h)
 
 TARGETS-y := xenperf xenpm xen-tmem-list-parse gtraceview gtracestat xenlockprof xenwatchdogd xencov
-TARGETS-$(CONFIG_X86) += xen-detect xen-hvmctx xen-hvm-param xen-hvmcrash xen-lowmemd xen-mfndump
+TARGETS-$(CONFIG_X86) += xen-detect xen-hvmctx xen-hvm-param xen-vmware-guestinfo xen-hvmcrash xen-lowmemd xen-mfndump
 TARGETS-$(CONFIG_MIGRATE) += xen-hptool
 TARGETS := $(TARGETS-y)
 
@@ -22,7 +22,7 @@ INSTALL_BIN := $(INSTALL_BIN-y)
 
 INSTALL_SBIN-y := xen-bugtool xen-python-path xenperf xenpm xen-tmem-list-parse gtraceview \
 	gtracestat xenlockprof xenwatchdogd xen-ringwatch xencov
-INSTALL_SBIN-$(CONFIG_X86) += xen-hvmctx xen-hvm-param xen-hvmcrash xen-lowmemd xen-mfndump
+INSTALL_SBIN-$(CONFIG_X86) += xen-hvmctx xen-hvm-param xen-vmware-guestinfo xen-hvmcrash xen-lowmemd xen-mfndump
 INSTALL_SBIN-$(CONFIG_MIGRATE) += xen-hptool
 INSTALL_SBIN := $(INSTALL_SBIN-y)
 
@@ -60,6 +60,9 @@ xen-hvmctx: xen-hvmctx.o
 xen-hvm-param: xen-hvm-param.o
 	$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS_libxenctrl) $(APPEND_LDFLAGS)
 
+xen-vmware-guestinfo: xen-vmware-guestinfo.o
+	$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS_libxenctrl) $(APPEND_LDFLAGS)
+
 xen-hvmcrash: xen-hvmcrash.o
 	$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS_libxenctrl) $(APPEND_LDFLAGS)
 
diff --git a/tools/misc/xen-vmware-guestinfo.c b/tools/misc/xen-vmware-guestinfo.c
new file mode 100644
index 0000000..e6b288c
--- /dev/null
+++ b/tools/misc/xen-vmware-guestinfo.c
@@ -0,0 +1,97 @@
+/*
+ * tools/misc/xen-vmware-guestinfo.c
+ *
+ * Copyright (C) 2014 Verizon Corporation
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License Version 2 (GPLv2)
+ * as published by the Free Software Foundation.
+ *
+ * This file 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. <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <err.h>
+
+#include <xenctrl.h>
+
+
+int
+main(int argc, char **argv)
+{
+    xc_interface *xch;
+    int domid;
+    int ret = 0;
+
+    char value[8192];
+    unsigned int val_len;
+    char *vals = "";
+
+    if ( (argc < 3) || (argc > 4) )
+        errx(1, "usage: %s domid guestinfo.<name> [new]", argv[0]);
+
+    xch = xc_interface_open(0, 0, 0);
+    if ( !xch )
+        err(1, "failed to open control interface");
+
+    domid = atoi(argv[1]);
+
+    ret = xc_get_vmport_guest_info(xch, domid, strlen(argv[2]), argv[2],
+                                   sizeof(value), &val_len, value);
+    if ( !ret )
+    {
+        /* Make sure this is a c-string */
+        if ( val_len < sizeof(value) )
+            value[val_len] = 0;
+        else
+        {
+            value[sizeof(value) - 1] = 0;
+            vals = "...";
+        }
+    }
+
+    if ( argc == 4 )
+    {
+        int ret1;
+
+        if ( ret )
+            warn("failed to get VMware guestinfo '%s' for domid %d", argv[2], domid);
+        ret1 = xc_set_vmport_guest_info(xch, domid, strlen(argv[2]), argv[2],
+                                        strlen(argv[3]), argv[3]);
+        if ( ret1 )
+            err(1, "failed to set VMware guestinfo '%s' for domid %d", argv[2], domid);
+        else if ( ret )
+            printf("VMware guestinfo '%s'='%s'\n",
+                   argv[2], argv[3]);
+        else
+            printf("VMware guestinfo '%s' was '%s'%s now '%s'\n",
+                   argv[2], value, vals, argv[3]);
+    }
+    else
+    {
+        if ( ret )
+            err(1, "failed to get VMware guestinfo '%s' for domid %d", argv[2], domid);
+        else
+        {
+            printf("VMware guestinfo '%s'='%s'%s\n",
+                   argv[2], value, vals);
+        }
+    }
+    xc_interface_close(xch);
+
+    return ret;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
-- 
1.8.4