[Libguestfs] [PATCH] guestfs_modprobe: explicitly load a kernel module in the appliance
Richard W.M. Jones
rjones at redhat.com
Tue Aug 18 14:08:11 UTC 2009
Try this updated patch:
- compiles without warnings
- improved the documentation a bit
- use 'command' instead of 'commandv' to simplify the code
ACK to this updated patch ...
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.
http://et.redhat.com/~rjones/virt-p2v
-------------- next part --------------
>From c8c3b2acd2e538179a752bd236e1a690f01ca86f Mon Sep 17 00:00:00 2001
From: Matthew Booth <mbooth at redhat.com>
Date: Tue, 18 Aug 2009 15:06:20 +0100
Subject: [PATCH] New 'modprobe' command.
Allow kernel modules to be loaded into the appliance.
---
daemon/Makefile.am | 1 +
daemon/modprobe.c | 40 ++++++++++++++++++++++++++++++++++++++++
po/POTFILES.in | 1 +
src/MAX_PROC_NR | 2 +-
src/generator.ml | 9 +++++++++
5 files changed, 52 insertions(+), 1 deletions(-)
create mode 100644 daemon/modprobe.c
diff --git a/daemon/Makefile.am b/daemon/Makefile.am
index 097d89d..83ee408 100644
--- a/daemon/Makefile.am
+++ b/daemon/Makefile.am
@@ -54,6 +54,7 @@ guestfsd_SOURCES = \
lvm.c \
mkfs.c \
mknod.c \
+ modprobe.c \
mount.c \
names.c \
ntfs.c \
diff --git a/daemon/modprobe.c b/daemon/modprobe.c
new file mode 100644
index 0000000..7e3d1b7
--- /dev/null
+++ b/daemon/modprobe.c
@@ -0,0 +1,40 @@
+/* libguestfs - the guestfsd daemon
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "daemon.h"
+#include "actions.h"
+
+int
+do_modprobe (const char *module)
+{
+ char *err;
+ int r = command (NULL, &err, "/sbin/modprobe", module, NULL);
+
+ if (r == -1) {
+ reply_with_error ("%s", err);
+ }
+
+ free (err);
+
+ return r;
+}
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 33bf6e6..19eef99 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -30,6 +30,7 @@ daemon/ls.c
daemon/lvm.c
daemon/mkfs.c
daemon/mknod.c
+daemon/modprobe.c
daemon/mount.c
daemon/names.c
daemon/ntfs.c
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index 2455a46..205a12b 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-193
+194
diff --git a/src/generator.ml b/src/generator.ml
index cc97dd5..18504d5 100755
--- a/src/generator.ml
+++ b/src/generator.ml
@@ -3560,6 +3560,15 @@ an external journal on the journal with UUID C<uuid>.
See also C<guestfs_mke2journal_U>.");
+ ("modprobe", (RErr, [String "module"]), 194, [],
+ [InitNone, Always, TestRun [["modprobe"; "ext2"]]],
+ "load a kernel module",
+ "\
+This loads a kernel module in the appliance.
+
+The kernel module must have been whitelisted when libguestfs
+was built (see C<appliance/kmod.whitelist.in> in the source).");
+
]
let all_functions = non_daemon_functions @ daemon_functions
--
1.6.2.5
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