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qemu-conf: add configurable slirp-helper location

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A slirp helper is a process that provides user-mode networking through
a unix domain socket. It is expected to follow the following
specification:
https://gitlab.freedesktop.org/slirp/libslirp-rs/blob/master/src/bin/README.rst

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Marc-André Lureau 2019-08-08 18:55:03 +04:00 committed by Michal Privoznik
parent 5d732dbb35
commit b0baafe92c
6 changed files with 17 additions and 1 deletions
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5
m4/virt-driver-qemu.m4
View File

@ -105,6 +105,11 @@ AC_DEFUN([LIBVIRT_DRIVER_CHECK_QEMU], [
[/usr/bin:/usr/libexec])
AC_DEFINE_UNQUOTED([QEMU_PR_HELPER], ["$QEMU_PR_HELPER"],
[QEMU PR helper])
AC_PATH_PROG([QEMU_SLIRP_HELPER], [slirp-helper],
[/usr/bin/slirp-helper],
[/usr/bin:/usr/libexec])
AC_DEFINE_UNQUOTED([QEMU_SLIRP_HELPER], ["$QEMU_SLIRP_HELPER"],
[QEMU slirp helper])
])
AC_DEFUN([LIBVIRT_DRIVER_RESULT_QEMU], [

1
src/qemu/libvirtd_qemu.aug
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@ -89,6 +89,7 @@ module Libvirtd_qemu =
| bool_entry "clear_emulator_capabilities"
| str_entry "bridge_helper"
| str_entry "pr_helper"
| str_entry "slirp_helper"
| bool_entry "set_process_name"
| int_entry "max_processes"
| int_entry "max_files"

3
src/qemu/qemu.conf
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@ -833,6 +833,9 @@
# used whenever <reservations/> are enabled for SCSI LUN devices.
#pr_helper = "/usr/bin/qemu-pr-helper"
# Path to the SLIRP networking helper.
#slirp_helper = "/usr/bin/slirp-helper"
# User for the swtpm TPM Emulator
#
# Default is 'tss'; this is the same user that tcsd (TrouSerS) installs

7
src/qemu/qemu_conf.c
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@ -282,7 +282,8 @@ virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
}
if (VIR_STRDUP(cfg->bridgeHelperName, QEMU_BRIDGE_HELPER) < 0 ||
VIR_STRDUP(cfg->prHelperName, QEMU_PR_HELPER) < 0)
VIR_STRDUP(cfg->prHelperName, QEMU_PR_HELPER) < 0 ||
VIR_STRDUP(cfg->slirpHelperName, QEMU_SLIRP_HELPER) < 0)
goto error;
cfg->clearEmulatorCapabilities = true;
@ -373,6 +374,7 @@ static void virQEMUDriverConfigDispose(void *obj)
VIR_FREE(cfg->hugetlbfs);
VIR_FREE(cfg->bridgeHelperName);
VIR_FREE(cfg->prHelperName);
VIR_FREE(cfg->slirpHelperName);
VIR_FREE(cfg->saveImageFormat);
VIR_FREE(cfg->dumpImageFormat);
@ -669,6 +671,9 @@ virQEMUDriverConfigLoadProcessEntry(virQEMUDriverConfigPtr cfg,
if (virConfGetValueString(conf, "pr_helper", &cfg->prHelperName) < 0)
return -1;
if (virConfGetValueString(conf, "slirp_helper", &cfg->slirpHelperName) < 0)
return -1;
if (virConfGetValueBool(conf, "set_process_name", &cfg->setProcessName) < 0)
return -1;
if (virConfGetValueUInt(conf, "max_processes", &cfg->maxProcesses) < 0)

1
src/qemu/qemu_conf.h
View File

@ -153,6 +153,7 @@ struct _virQEMUDriverConfig {
char *bridgeHelperName;
char *prHelperName;
char *slirpHelperName;
bool macFilter;

1
src/qemu/test_libvirtd_qemu.aug.in
View File

@ -104,6 +104,7 @@ module Test_libvirtd_qemu =
}
{ "memory_backing_dir" = "/var/lib/libvirt/qemu/ram" }
{ "pr_helper" = "/usr/bin/qemu-pr-helper" }
{ "slirp_helper" = "/usr/bin/slirp-helper" }
{ "swtpm_user" = "tss" }
{ "swtpm_group" = "tss" }
{ "capability_filters"