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  1. 18 2月, 2015 1 次提交
  3. 17 2月, 2015 2 次提交
    • S
      guest agent: guest-file-open: refactoring · 85b6f6f5
      由 Simon Zolin 提交于 
      Moved the code that sets non-blocking flag on fd into a separate function.
Signed-off-by: NSimon Zolin <szolin@parallels.com>
Reviewed-by: NRoman Kagan <rkagan@parallels.com>
Signed-off-by: NDenis V. Lunev <den@openvz.org>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
CC: Eric Blake <eblake@redhat.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
      85b6f6f5
    • D
      qga: add guest-set-user-password command · 215a2771
      由 Daniel P. Berrange 提交于 
      Add a new 'guest-set-user-password' command for changing the password
of guest OS user accounts. This command is needed to enable OpenStack
to support its API for changing the admin password of guests running
on KVM/QEMU. It is not practical to provide a command at the QEMU
level explicitly targetting administrator account password change
only, since different guest OS have different names for the admin
account. While UNIX systems use 'root', Windows systems typically
use 'Administrator' and even that can be renamed. Higher level apps
like OpenStack have the ability to figure out the correct admin
account name since they have info that QEMU/libvirt do not.

The command accepts either the clear text password string, encoded
in base64 to make it 8-bit safe in JSON:

$ echo -n "123456" | base64
MTIzNDU2
$ virsh -c qemu:///system  qemu-agent-command f21x86_64 \
   '{ "execute": "guest-set-user-password",
      "arguments": { "crypted": false,
                     "username": "root",
                     "password": "MTIzNDU2" } }'
  {"return":{}}

Or a password that has already been run though a crypt(3) like
algorithm appropriate for the guest, again then base64 encoded:

$ echo -n '$6$n01A2Tau$e...snip...DfMOP7of9AJ1I8q0' | base64
JDYkb...snip...YT2Ey
$ virsh -c qemu:///system  qemu-agent-command f21x86_64 \
   '{ "execute": "guest-set-user-password",
      "arguments": { "crypted": true,
                     "username": "root",
                     "password": "JDYkb...snip...YT2Ey" } }'

NB windows support is desirable, but not implemented in this
patch.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
      215a2771
  5. 22 10月, 2014 1 次提交
  7. 08 8月, 2014 3 次提交
    • T
      qga: Disable unsupported commands by default · 1281c08a
      由 Tomoki Sekiyama 提交于 
      Currently management softwares cannot know whether a qemu-ga command is
supported or not on the running platform until they actually execute it.
This patch disables unsupported commands at launch time of qemu-ga, so that
management softwares can check whether they are supported from 'enabled'
property of the result from 'guest-info' command.
Signed-off-by: NTomoki Sekiyama <tomoki.sekiyama@hds.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
      1281c08a
    • T
      qga: Add guest-get-fsinfo command · 46d4c572
      由 Tomoki Sekiyama 提交于 
      Add command to get mounted filesystems information in the guest.
The returned value contains a list of mountpoint paths and
corresponding disks info such as disk bus type, drive address,
and the disk controllers' PCI addresses, so that management layer
such as libvirt can resolve the disk backends.

For example, when `lsblk' result is:

    NAME           MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
    sdb              8:16   0    1G  0 disk
    `-sdb1           8:17   0 1024M  0 part
      `-vg0-lv0    253:1    0  1.4G  0 lvm  /mnt/test
    sdc              8:32   0    1G  0 disk
    `-sdc1           8:33   0  512M  0 part
      `-vg0-lv0    253:1    0  1.4G  0 lvm  /mnt/test
    vda            252:0    0   25G  0 disk
    `-vda1         252:1    0   25G  0 part /

where sdb is a SCSI disk with PCI controller 0000:00:0a.0 and ID=1,
      sdc is an IDE disk with PCI controller 0000:00:01.1, and
      vda is a virtio-blk disk with PCI device 0000:00:06.0,

guest-get-fsinfo command will return the following result:

    {"return":
     [{"name":"dm-1",
       "mountpoint":"/mnt/test",
       "disk":[
        {"bus-type":"scsi","bus":0,"unit":1,"target":0,
         "pci-controller":{"bus":0,"slot":10,"domain":0,"function":0}},
        {"bus-type":"ide","bus":0,"unit":0,"target":0,
         "pci-controller":{"bus":0,"slot":1,"domain":0,"function":1}}],
       "type":"xfs"},
      {"name":"vda1", "mountpoint":"/",
       "disk":[
        {"bus-type":"virtio","bus":0,"unit":0,"target":0,
         "pci-controller":{"bus":0,"slot":6,"domain":0,"function":0}}],
       "type":"ext4"}]}

In Linux guest, the disk information is resolved from sysfs. So far,
it only supports virtio-blk, virtio-scsi, IDE, SATA, SCSI disks on x86
hosts, and "disk" parameter may be empty for unsupported disk types.
Signed-off-by: NTomoki Sekiyama <tomoki.sekiyama@hds.com>

*updated schema to report 2.2 as initial supported version
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
      46d4c572
    • T
      qga: Add guest-fsfreeze-freeze-list command · e99bce20
      由 Tomoki Sekiyama 提交于 
      If an array of mount point paths is specified as 'mountpoints' argument
of guest-fsfreeze-freeze-list, qemu-ga will only freeze the file systems
mounted on specified paths in Linux guests. Otherwise, it works as the
same way as guest-fsfreeze-freeze.
This would be useful when the host wants to create partial disk snapshots.
Signed-off-by: NTomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: NEric Blake <eblake@redhat.com>

*updated schema to report 2.2 as initial supported version
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
      e99bce20
  9. 18 7月, 2014 1 次提交
  11. 09 5月, 2014 3 次提交
  13. 18 4月, 2014 1 次提交
  15. 24 2月, 2014 2 次提交
  17. 18 2月, 2014 1 次提交
  19. 22 11月, 2013 1 次提交
    • S
      qga: Fix compiler warnings (missing format attribute, wrong format strings) · d607a523
      由 Stefan Weil 提交于 
      gcc 4.8.2 reports this warning when extra warnings are enabled (-Wextra):

  CC    qga/commands.o
qga/commands.c: In function ‘slog’:
qga/commands.c:28:5: error:
 function might be possible candidate for ‘gnu_printf’ format attribute [-Werror=suggest-attribute=format]
     g_logv("syslog", G_LOG_LEVEL_INFO, fmt, ap);
     ^

gcc 4.8.2 reports this warning when slog is declared with the
gnu_printf format attribute:

qga/commands-posix.c: In function ‘qmp_guest_file_open’:
qga/commands-posix.c:404:5: warning:
 format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘int64_t’ [-Wformat=]
     slog("guest-file-open, handle: %d", handle);
     ^

On 32 bit hosts there are three more warnings which are also fixed here.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      d607a523
  21. 16 11月, 2013 1 次提交
    • W
      qga: Fix shutdown command of guest agent to work with SysV · 485e741c
      由 whitearchey 提交于 
      For now guest agent uses following command to shutdown system:
shutdown -P +0 "blabla"
but this syntax works only with shutdown command from systemd or upstart,
because SysV shutdown requires -h switch.

Following patch changes the command so it works with systemd, upstart and SysV

With upstart/systemd qga use one of thee commands, depending on 'mode' parameter:
  shutdown -P +0 "..."
  shutdown -H +0 "..."
  shutdown -r +0 "..."
SysV equivalents for these are:
  shutdown -h -P +0 "..."
  shutdown -h -H +0 "..."
  shutdown -h -r +0 "..."
and these retain their meaning with upstart/systemd.

According to FreeBSD manpages, shutdown does not accept -P and -H options. Commands should be:
  shutdown -p +0 "..."
  shutdown -h +0 "..."
  shutdown -r +0 "..."

shutdown in Solaris does not accept any of -hHpPr and does not accept time in "+0" format
Signed-off-by: NMichael Avdienko <whitearchey@gmail.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
      485e741c
  23. 11 10月, 2013 1 次提交
  25. 13 5月, 2013 2 次提交
  27. 07 5月, 2013 1 次提交
    • L
      qga: set umask 0077 when daemonizing (CVE-2013-2007) · c689b4f1
      由 Laszlo Ersek 提交于 
      The qemu guest agent creates a bunch of files with insecure permissions
when started in daemon mode. For example:

  -rw-rw-rw- 1 root root /var/log/qemu-ga.log
  -rw-rw-rw- 1 root root /var/run/qga.state
  -rw-rw-rw- 1 root root /var/log/qga-fsfreeze-hook.log

In addition, at least all files created with the "guest-file-open" QMP
command, and all files created with shell output redirection (or
otherwise) by utilities invoked by the fsfreeze hook script are affected.

For now mask all file mode bits for "group" and "others" in
become_daemon().

Temporarily, for compatibility reasons, stick with the 0666 file-mode in
case of files newly created by the "guest-file-open" QMP call. Do so
without changing the umask temporarily.
Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      c689b4f1
  29. 22 3月, 2013 1 次提交
  31. 12 3月, 2013 6 次提交
  33. 29 1月, 2013 2 次提交
  35. 19 1月, 2013 1 次提交
  37. 09 1月, 2013 9 次提交