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[Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blac
From: |
Eduardo Otubo |
Subject: |
[Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist |
Date: |
Fri, 6 Sep 2013 16:21:47 -0300 |
New command line options for the seccomp blacklist feature:
$ qemu -sandbox on[,strict=<on|off>]
The strict parameter will turn on or off the new system call blacklist
Signed-off-by: Eduardo Otubo <address@hidden>
---
qemu-options.hx | 8 +++++---
vl.c | 11 ++++++++++-
2 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/qemu-options.hx b/qemu-options.hx
index d15338e..05485e1 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2978,13 +2978,15 @@ Old param mode (ARM only).
ETEXI
DEF("sandbox", HAS_ARG, QEMU_OPTION_sandbox, \
- "-sandbox <arg> Enable seccomp mode 2 system call filter (default
'off').\n",
+ "-sandbox <arg> Enable seccomp mode 2 system call filter (default
'off').\n"
+ "-sandbox on[,strict=<arg>]\n"
+ " Enable seccomp mode 2 system call second level filter
(default 'off').\n",
QEMU_ARCH_ALL)
STEXI
address@hidden -sandbox @var{arg}
address@hidden -sandbox @var{arg}[,address@hidden
@findex -sandbox
Enable Seccomp mode 2 system call filter. 'on' will enable syscall filtering
and 'off' will
-disable it. The default is 'off'.
+disable it. The default is 'off'. 'strict=on' will enable second level filter
(default is 'off').
ETEXI
DEF("readconfig", HAS_ARG, QEMU_OPTION_readconfig,
diff --git a/vl.c b/vl.c
index 02f7486..909f685 100644
--- a/vl.c
+++ b/vl.c
@@ -329,6 +329,9 @@ static QemuOptsList qemu_sandbox_opts = {
{
.name = "enable",
.type = QEMU_OPT_BOOL,
+ },{
+ .name = "strict",
+ .type = QEMU_OPT_STRING,
},
{ /* end of list */ }
},
@@ -1031,6 +1034,7 @@ static int bt_parse(const char *opt)
static int parse_sandbox(QemuOpts *opts, void *opaque)
{
+ const char * strict_value = NULL;
/* FIXME: change this to true for 1.3 */
if (qemu_opt_get_bool(opts, "enable", false)) {
#ifdef CONFIG_SECCOMP
@@ -1040,7 +1044,12 @@ static int parse_sandbox(QemuOpts *opts, void *opaque)
return -1;
}
- enable_blacklist = true;
+ strict_value = qemu_opt_get(opts, "strict");
+ if (strict_value) {
+ if (!strcmp(strict_value, "on")) {
+ enable_blacklist = true;
+ }
+ }
#else
qerror_report(ERROR_CLASS_GENERIC_ERROR,
"sandboxing request but seccomp is not compiled into
this build");
--
1.8.3.1
- [Qemu-devel] [PATCHv2 0/3] seccomp: adding blacklist support with command line, Eduardo Otubo, 2013/09/06
- [Qemu-devel] [PATCHv3 3/3] seccomp: general fixes, Eduardo Otubo, 2013/09/06
- [Qemu-devel] [PATCHv2 1/3] seccomp: adding blacklist support, Eduardo Otubo, 2013/09/06
- [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist,
Eduardo Otubo <=
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Corey Bryant, 2013/09/11
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Daniel P. Berrange, 2013/09/11
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Eduardo Otubo, 2013/09/17
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Daniel P. Berrange, 2013/09/17
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Paul Moore, 2013/09/17
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Eduardo Otubo, 2013/09/17
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Eduardo Otubo, 2013/09/17
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Corey Bryant, 2013/09/17
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Eduardo Otubo, 2013/09/17
- Re: [Qemu-devel] [PATCHv2 2/3] seccomp: adding command line support for blacklist, Daniel P. Berrange, 2013/09/18