Signed-off-by: Chen Hanxiao <chenhanx...@cn.fujitsu.com>
---
appliance/packagelist.in | 1 +
daemon/daemon.h | 2 ++
daemon/guestfsd.c | 19 +++++++++++++++++++
3 files changed, 22 insertions(+)
diff --git a/appliance/packagelist.in b/appliance/packagelist.in
index 76c7293..d218a37 100644
--- a/appliance/packagelist.in
+++ b/appliance/packagelist.in
@@ -97,6 +97,7 @@ dnl iproute has been renamed to iproute2
vim-tiny
xz-utils
zfs-fuse
+ uuid-runtime
)
ifelse(ARCHLINUX,1,
diff --git a/daemon/daemon.h b/daemon/daemon.h
index d8a5e0b..f8441d1 100644
--- a/daemon/daemon.h
+++ b/daemon/daemon.h
@@ -152,6 +152,8 @@ extern void udev_settle (void);
extern int random_name (char *template);
+extern char *get_random_uuid (void);
+
/* This just stops gcc from giving a warning about our custom printf
* formatters %Q and %R. See guestfs(3)/EXTENDING LIBGUESTFS for more
* info about these. In GCC 4.8.0 the warning is even harder to
diff --git a/daemon/guestfsd.c b/daemon/guestfsd.c
index 584c685..7f4b2f2 100644
--- a/daemon/guestfsd.c
+++ b/daemon/guestfsd.c
@@ -57,6 +57,7 @@
#include "daemon.h"
GUESTFSD_EXT_CMD(str_udevadm, udevadm);
+GUESTFSD_EXT_CMD(str_uuidgen, uuidgen);
#ifndef MAX
# define MAX(a,b) ((a)>(b)?(a):(b))
@@ -1509,6 +1510,24 @@ udev_settle (void)
fprintf (stderr, "warning: udevadm command failed\n");
}
+char *
+get_random_uuid (void)
+{
+ int r;
+ char *out;
+ CLEANUP_FREE char *err = NULL;
+
+ r = command (&out, &err, str_uuidgen, NULL);
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ return NULL;
+ }
+
+ /* caller free */
+ return out;
+
+}
+
/* Use by the CLEANUP_* macros. Do not call these directly. */
void
cleanup_free (void *ptr)
--
2.1.0
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