* [LTP] [PATCH] containers/netns/: fix kernel supporting check
@ 2015-09-15 11:16 Guangwen Feng
2015-09-17 8:29 ` Jan Stancek
0 siblings, 1 reply; 6+ messages in thread
From: Guangwen Feng @ 2015-09-15 11:16 UTC (permalink / raw)
To: ltp
On RHEL5.11GA, test result should be TCONF but not TFAIL since
setns() is not supported, so fix this.
Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
---
testcases/kernel/containers/netns/netns_helper.sh | 8 +++++++-
testcases/kernel/containers/netns/netns_sysfs.sh | 9 ++++++++-
testcases/kernel/containers/share/ns_exec.c | 6 ++----
3 files changed, 17 insertions(+), 6 deletions(-)
diff --git a/testcases/kernel/containers/netns/netns_helper.sh b/testcases/kernel/containers/netns/netns_helper.sh
index cea1541..f9d6cba 100755
--- a/testcases/kernel/containers/netns/netns_helper.sh
+++ b/testcases/kernel/containers/netns/netns_helper.sh
@@ -188,8 +188,14 @@ netns_ns_exec_setup()
tst_brkm TBROK "unable to create a new network namespace"
fi
- $NS_EXEC $NS_HANDLE0 ip link add veth0 type veth peer name veth1 || \
+ $NS_EXEC $NS_HANDLE0 ip link add veth0 type veth peer name veth1
+ if [ $? -eq 32 ]; then
+ tst_brkm TCONF "setns not supported"
+ fi
+
+ if [ $? -ne 0 ]; then
tst_brkm TBROK "unable to create veth pair devices"
+ fi
$NS_EXEC $NS_HANDLE0 ns_ifmove veth1 $NS_HANDLE1
if [ $? -eq 0 ]; then
diff --git a/testcases/kernel/containers/netns/netns_sysfs.sh b/testcases/kernel/containers/netns/netns_sysfs.sh
index c10fa36..6c95a7d 100755
--- a/testcases/kernel/containers/netns/netns_sysfs.sh
+++ b/testcases/kernel/containers/netns/netns_sysfs.sh
@@ -43,8 +43,15 @@ TST_CLEANUP=cleanup
ls /sys/class/net >sysfs_before
-ns_exec $NS_HANDLE ip link add dummy0 type dummy || \
+ns_exec $NS_HANDLE ip link add dummy0 type dummy
+if [ $? -eq 32 ]; then
+ tst_brkm TCONF "setns not supported"
+fi
+
+if [ $? -ne 0 ]; then
tst_brkm TBROK "failed to add a new dummy device"
+fi
+
ns_exec $NS_HANDLE mount -t sysfs none /sys 2>/dev/null
ns_exec $NS_HANDLE test -d /sys/class/net/dummy0
diff --git a/testcases/kernel/containers/share/ns_exec.c b/testcases/kernel/containers/share/ns_exec.c
index e2f068c..9148b46 100644
--- a/testcases/kernel/containers/share/ns_exec.c
+++ b/testcases/kernel/containers/share/ns_exec.c
@@ -86,10 +86,8 @@ int main(int argc, char *argv[])
int i, rv, pid;
rv = syscall(__NR_setns, -1, 0);
- if (rv == -1 && errno == ENOSYS) {
- tst_resm(TINFO, "setns is not supported in the kernel");
- return 1;
- }
+ if (rv == -1 && errno == ENOSYS)
+ tst_brkm(TCONF, NULL, "setns is not supported in the kernel");
if (argc < 3) {
tst_resm(TINFO, "%s <NS_PID> <PROGRAM> [ARGS]\n", argv[0]);
--
1.8.4.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [LTP] [PATCH] containers/netns/: fix kernel supporting check
2015-09-15 11:16 [LTP] [PATCH] containers/netns/: fix kernel supporting check Guangwen Feng
@ 2015-09-17 8:29 ` Jan Stancek
2015-09-17 10:44 ` Guangwen Feng
0 siblings, 1 reply; 6+ messages in thread
From: Jan Stancek @ 2015-09-17 8:29 UTC (permalink / raw)
To: ltp
----- Original Message -----
> From: "Guangwen Feng" <fenggw-fnst@cn.fujitsu.com>
> To: ltp@lists.linux.it
> Sent: Tuesday, 15 September, 2015 1:16:31 PM
> Subject: [LTP] [PATCH] containers/netns/: fix kernel supporting check
>
> On RHEL5.11GA, test result should be TCONF but not TFAIL since
> setns() is not supported, so fix this.
>
> Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
> ---
> testcases/kernel/containers/netns/netns_helper.sh | 8 +++++++-
> testcases/kernel/containers/netns/netns_sysfs.sh | 9 ++++++++-
> testcases/kernel/containers/share/ns_exec.c | 6 ++----
> 3 files changed, 17 insertions(+), 6 deletions(-)
>
> diff --git a/testcases/kernel/containers/netns/netns_helper.sh
> b/testcases/kernel/containers/netns/netns_helper.sh
> index cea1541..f9d6cba 100755
> --- a/testcases/kernel/containers/netns/netns_helper.sh
> +++ b/testcases/kernel/containers/netns/netns_helper.sh
> @@ -188,8 +188,14 @@ netns_ns_exec_setup()
> tst_brkm TBROK "unable to create a new network namespace"
> fi
>
> - $NS_EXEC $NS_HANDLE0 ip link add veth0 type veth peer name veth1 || \
> + $NS_EXEC $NS_HANDLE0 ip link add veth0 type veth peer name veth1
> + if [ $? -eq 32 ]; then
> + tst_brkm TCONF "setns not supported"
> + fi
> +
> + if [ $? -ne 0 ]; then
> tst_brkm TBROK "unable to create veth pair devices"
> + fi
I'd suggest putting setns() check in a separate function, which we
then call as part of setup for these testcases.
netns_setup() already makes couple checks, can it check for setns()
availability too at the beginning of the test?
netns_sysfs.sh is not using netns_helper.sh helper, so it would need
to call that function too as part of its setup.
Regards,
Jan
>
> $NS_EXEC $NS_HANDLE0 ns_ifmove veth1 $NS_HANDLE1
> if [ $? -eq 0 ]; then
> diff --git a/testcases/kernel/containers/netns/netns_sysfs.sh
> b/testcases/kernel/containers/netns/netns_sysfs.sh
> index c10fa36..6c95a7d 100755
> --- a/testcases/kernel/containers/netns/netns_sysfs.sh
> +++ b/testcases/kernel/containers/netns/netns_sysfs.sh
> @@ -43,8 +43,15 @@ TST_CLEANUP=cleanup
> ls /sys/class/net >sysfs_before
>
>
> -ns_exec $NS_HANDLE ip link add dummy0 type dummy || \
> +ns_exec $NS_HANDLE ip link add dummy0 type dummy
> +if [ $? -eq 32 ]; then
> + tst_brkm TCONF "setns not supported"
> +fi
> +
> +if [ $? -ne 0 ]; then
> tst_brkm TBROK "failed to add a new dummy device"
> +fi
> +
> ns_exec $NS_HANDLE mount -t sysfs none /sys 2>/dev/null
>
> ns_exec $NS_HANDLE test -d /sys/class/net/dummy0
> diff --git a/testcases/kernel/containers/share/ns_exec.c
> b/testcases/kernel/containers/share/ns_exec.c
> index e2f068c..9148b46 100644
> --- a/testcases/kernel/containers/share/ns_exec.c
> +++ b/testcases/kernel/containers/share/ns_exec.c
> @@ -86,10 +86,8 @@ int main(int argc, char *argv[])
> int i, rv, pid;
>
> rv = syscall(__NR_setns, -1, 0);
> - if (rv == -1 && errno == ENOSYS) {
> - tst_resm(TINFO, "setns is not supported in the kernel");
> - return 1;
> - }
> + if (rv == -1 && errno == ENOSYS)
> + tst_brkm(TCONF, NULL, "setns is not supported in the kernel");
>
> if (argc < 3) {
> tst_resm(TINFO, "%s <NS_PID> <PROGRAM> [ARGS]\n", argv[0]);
> --
> 1.8.4.2
>
>
> --
> Mailing list info: http://lists.linux.it/listinfo/ltp
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [LTP] [PATCH] containers/netns/: fix kernel supporting check
2015-09-17 8:29 ` Jan Stancek
@ 2015-09-17 10:44 ` Guangwen Feng
2015-09-21 2:01 ` [LTP] [PATCH v2] " Guangwen Feng
0 siblings, 1 reply; 6+ messages in thread
From: Guangwen Feng @ 2015-09-17 10:44 UTC (permalink / raw)
To: ltp
Hi!
Thanks for your reply!
On 2015/09/17 16:29, Jan Stancek wrote:
>
>
> ----- Original Message -----
>> From: "Guangwen Feng" <fenggw-fnst@cn.fujitsu.com>
>> To: ltp@lists.linux.it
>> Sent: Tuesday, 15 September, 2015 1:16:31 PM
>> Subject: [LTP] [PATCH] containers/netns/: fix kernel supporting check
>>
>> On RHEL5.11GA, test result should be TCONF but not TFAIL since
>> setns() is not supported, so fix this.
>>
>> Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
>> ---
>> testcases/kernel/containers/netns/netns_helper.sh | 8 +++++++-
>> testcases/kernel/containers/netns/netns_sysfs.sh | 9 ++++++++-
>> testcases/kernel/containers/share/ns_exec.c | 6 ++----
>> 3 files changed, 17 insertions(+), 6 deletions(-)
>>
>> diff --git a/testcases/kernel/containers/netns/netns_helper.sh
>> b/testcases/kernel/containers/netns/netns_helper.sh
>> index cea1541..f9d6cba 100755
>> --- a/testcases/kernel/containers/netns/netns_helper.sh
>> +++ b/testcases/kernel/containers/netns/netns_helper.sh
>> @@ -188,8 +188,14 @@ netns_ns_exec_setup()
>> tst_brkm TBROK "unable to create a new network namespace"
>> fi
>>
>> - $NS_EXEC $NS_HANDLE0 ip link add veth0 type veth peer name veth1 || \
>> + $NS_EXEC $NS_HANDLE0 ip link add veth0 type veth peer name veth1
>> + if [ $? -eq 32 ]; then
>> + tst_brkm TCONF "setns not supported"
>> + fi
>> +
>> + if [ $? -ne 0 ]; then
>> tst_brkm TBROK "unable to create veth pair devices"
>> + fi
>
> I'd suggest putting setns() check in a separate function, which we
> then call as part of setup for these testcases.
>
> netns_setup() already makes couple checks, can it check for setns()
> availability too at the beginning of the test?
>
> netns_sysfs.sh is not using netns_helper.sh helper, so it would need
> to call that function too as part of its setup.
>
OK, thanks!
I will rewrite the patch according to your suggestion.
Best Regards,
Guangwen Feng
> Regards,
> Jan
>
>>
>> $NS_EXEC $NS_HANDLE0 ns_ifmove veth1 $NS_HANDLE1
>> if [ $? -eq 0 ]; then
>> diff --git a/testcases/kernel/containers/netns/netns_sysfs.sh
>> b/testcases/kernel/containers/netns/netns_sysfs.sh
>> index c10fa36..6c95a7d 100755
>> --- a/testcases/kernel/containers/netns/netns_sysfs.sh
>> +++ b/testcases/kernel/containers/netns/netns_sysfs.sh
>> @@ -43,8 +43,15 @@ TST_CLEANUP=cleanup
>> ls /sys/class/net >sysfs_before
>>
>>
>> -ns_exec $NS_HANDLE ip link add dummy0 type dummy || \
>> +ns_exec $NS_HANDLE ip link add dummy0 type dummy
>> +if [ $? -eq 32 ]; then
>> + tst_brkm TCONF "setns not supported"
>> +fi
>> +
>> +if [ $? -ne 0 ]; then
>> tst_brkm TBROK "failed to add a new dummy device"
>> +fi
>> +
>> ns_exec $NS_HANDLE mount -t sysfs none /sys 2>/dev/null
>>
>> ns_exec $NS_HANDLE test -d /sys/class/net/dummy0
>> diff --git a/testcases/kernel/containers/share/ns_exec.c
>> b/testcases/kernel/containers/share/ns_exec.c
>> index e2f068c..9148b46 100644
>> --- a/testcases/kernel/containers/share/ns_exec.c
>> +++ b/testcases/kernel/containers/share/ns_exec.c
>> @@ -86,10 +86,8 @@ int main(int argc, char *argv[])
>> int i, rv, pid;
>>
>> rv = syscall(__NR_setns, -1, 0);
>> - if (rv == -1 && errno == ENOSYS) {
>> - tst_resm(TINFO, "setns is not supported in the kernel");
>> - return 1;
>> - }
>> + if (rv == -1 && errno == ENOSYS)
>> + tst_brkm(TCONF, NULL, "setns is not supported in the kernel");
>>
>> if (argc < 3) {
>> tst_resm(TINFO, "%s <NS_PID> <PROGRAM> [ARGS]\n", argv[0]);
>> --
>> 1.8.4.2
>>
>>
>> --
>> Mailing list info: http://lists.linux.it/listinfo/ltp
>>
> .
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [LTP] [PATCH v2] containers/netns/: fix kernel supporting check
2015-09-17 10:44 ` Guangwen Feng
@ 2015-09-21 2:01 ` Guangwen Feng
2015-09-21 14:00 ` Jan Stancek
0 siblings, 1 reply; 6+ messages in thread
From: Guangwen Feng @ 2015-09-21 2:01 UTC (permalink / raw)
To: ltp
On RHEL5.11GA, test result should be TCONF but not TFAIL since
setns() is not supported, so fix this.
Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
---
testcases/kernel/containers/netns/netns_helper.sh | 4 +++
testcases/kernel/containers/netns/netns_sysfs.sh | 5 ++++
testcases/kernel/containers/share/setns_check.c | 32 +++++++++++++++++++++++
3 files changed, 41 insertions(+)
create mode 100644 testcases/kernel/containers/share/setns_check.c
diff --git a/testcases/kernel/containers/netns/netns_helper.sh b/testcases/kernel/containers/netns/netns_helper.sh
index cea1541..ac08125 100755
--- a/testcases/kernel/containers/netns/netns_helper.sh
+++ b/testcases/kernel/containers/netns/netns_helper.sh
@@ -110,6 +110,10 @@ netns_setup()
case "$1" in
ns_exec)
+ setns_check
+ if [ $? -eq 32 ]; then
+ tst_brkm TCONF "setns not supported"
+ fi
netns_ns_exec_setup
TST_CLEANUP=netns_ns_exec_cleanup
;;
diff --git a/testcases/kernel/containers/netns/netns_sysfs.sh b/testcases/kernel/containers/netns/netns_sysfs.sh
index c10fa36..06de00f 100755
--- a/testcases/kernel/containers/netns/netns_sysfs.sh
+++ b/testcases/kernel/containers/netns/netns_sysfs.sh
@@ -26,6 +26,11 @@ TCID="netns_sysfs"
TST_TOTAL=2
. test.sh
+setns_check
+if [ $? -eq 32 ]; then
+ tst_brkm TCONF "setns not supported"
+fi
+
cleanup()
{
tst_rmdir
diff --git a/testcases/kernel/containers/share/setns_check.c b/testcases/kernel/containers/share/setns_check.c
new file mode 100644
index 0000000..7ba891c
--- /dev/null
+++ b/testcases/kernel/containers/share/setns_check.c
@@ -0,0 +1,32 @@
+/* Copyright (c) 2015 Fujitsu Ltd.
+ * Author: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of version 2 the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ ***********************************************************************
+ * Check for setns() availability, should be called before ns_exec.
+ *
+ */
+
+#include "test.h"
+#include "linux_syscall_numbers.h"
+
+char *TCID = "setns_check";
+
+int main(void)
+{
+ if (syscall(__NR_setns, -1, 0) == -1 && errno == ENOSYS)
+ tst_brkm(TCONF, NULL, "setns is not supported in the kernel");
+ else
+ return 0;
+}
--
1.8.4.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [LTP] [PATCH v2] containers/netns/: fix kernel supporting check
2015-09-21 2:01 ` [LTP] [PATCH v2] " Guangwen Feng
@ 2015-09-21 14:00 ` Jan Stancek
2015-09-22 7:32 ` Guangwen Feng
0 siblings, 1 reply; 6+ messages in thread
From: Jan Stancek @ 2015-09-21 14:00 UTC (permalink / raw)
To: ltp
----- Original Message -----
> From: "Guangwen Feng" <fenggw-fnst@cn.fujitsu.com>
> To: jstancek@redhat.com
> Cc: ltp@lists.linux.it, "Guangwen Feng" <fenggw-fnst@cn.fujitsu.com>
> Sent: Monday, 21 September, 2015 4:01:14 AM
> Subject: [PATCH v2] containers/netns/: fix kernel supporting check
>
> On RHEL5.11GA, test result should be TCONF but not TFAIL since
> setns() is not supported, so fix this.
>
> Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
I slightly modified description, added setns_check to .gitignore,
tested on RHEL5.6 and pushed.
Thanks,
Jan
> ---
> testcases/kernel/containers/netns/netns_helper.sh | 4 +++
> testcases/kernel/containers/netns/netns_sysfs.sh | 5 ++++
> testcases/kernel/containers/share/setns_check.c | 32
> +++++++++++++++++++++++
> 3 files changed, 41 insertions(+)
> create mode 100644 testcases/kernel/containers/share/setns_check.c
>
> diff --git a/testcases/kernel/containers/netns/netns_helper.sh
> b/testcases/kernel/containers/netns/netns_helper.sh
> index cea1541..ac08125 100755
> --- a/testcases/kernel/containers/netns/netns_helper.sh
> +++ b/testcases/kernel/containers/netns/netns_helper.sh
> @@ -110,6 +110,10 @@ netns_setup()
>
> case "$1" in
> ns_exec)
> + setns_check
> + if [ $? -eq 32 ]; then
> + tst_brkm TCONF "setns not supported"
> + fi
> netns_ns_exec_setup
> TST_CLEANUP=netns_ns_exec_cleanup
> ;;
> diff --git a/testcases/kernel/containers/netns/netns_sysfs.sh
> b/testcases/kernel/containers/netns/netns_sysfs.sh
> index c10fa36..06de00f 100755
> --- a/testcases/kernel/containers/netns/netns_sysfs.sh
> +++ b/testcases/kernel/containers/netns/netns_sysfs.sh
> @@ -26,6 +26,11 @@ TCID="netns_sysfs"
> TST_TOTAL=2
> . test.sh
>
> +setns_check
> +if [ $? -eq 32 ]; then
> + tst_brkm TCONF "setns not supported"
> +fi
> +
> cleanup()
> {
> tst_rmdir
> diff --git a/testcases/kernel/containers/share/setns_check.c
> b/testcases/kernel/containers/share/setns_check.c
> new file mode 100644
> index 0000000..7ba891c
> --- /dev/null
> +++ b/testcases/kernel/containers/share/setns_check.c
> @@ -0,0 +1,32 @@
> +/* Copyright (c) 2015 Fujitsu Ltd.
> + * Author: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
> + *
> + * This program is free software: you can redistribute it and/or modify
> + * it under the terms of version 2 the GNU General Public License as
> + * published by the Free Software Foundation.
> + *
> + * 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, see <http://www.gnu.org/licenses/>.
> + *
> + ***********************************************************************
> + * Check for setns() availability, should be called before ns_exec.
> + *
> + */
> +
> +#include "test.h"
> +#include "linux_syscall_numbers.h"
> +
> +char *TCID = "setns_check";
> +
> +int main(void)
> +{
> + if (syscall(__NR_setns, -1, 0) == -1 && errno == ENOSYS)
> + tst_brkm(TCONF, NULL, "setns is not supported in the kernel");
> + else
> + return 0;
> +}
> --
> 1.8.4.2
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [LTP] [PATCH v2] containers/netns/: fix kernel supporting check
2015-09-21 14:00 ` Jan Stancek
@ 2015-09-22 7:32 ` Guangwen Feng
0 siblings, 0 replies; 6+ messages in thread
From: Guangwen Feng @ 2015-09-22 7:32 UTC (permalink / raw)
To: ltp
Hi!
On 2015/09/21 22:00, Jan Stancek wrote:
>
>
>
>
> ----- Original Message -----
>> From: "Guangwen Feng" <fenggw-fnst@cn.fujitsu.com>
>> To: jstancek@redhat.com
>> Cc: ltp@lists.linux.it, "Guangwen Feng" <fenggw-fnst@cn.fujitsu.com>
>> Sent: Monday, 21 September, 2015 4:01:14 AM
>> Subject: [PATCH v2] containers/netns/: fix kernel supporting check
>>
>> On RHEL5.11GA, test result should be TCONF but not TFAIL since
>> setns() is not supported, so fix this.
>>
>> Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
>
> I slightly modified description, added setns_check to .gitignore,
> tested on RHEL5.6 and pushed.
>
Many thanks!
Best Regards,
Guangwen Feng
> Thanks,
> Jan
>
>> ---
>> testcases/kernel/containers/netns/netns_helper.sh | 4 +++
>> testcases/kernel/containers/netns/netns_sysfs.sh | 5 ++++
>> testcases/kernel/containers/share/setns_check.c | 32
>> +++++++++++++++++++++++
>> 3 files changed, 41 insertions(+)
>> create mode 100644 testcases/kernel/containers/share/setns_check.c
>>
>> diff --git a/testcases/kernel/containers/netns/netns_helper.sh
>> b/testcases/kernel/containers/netns/netns_helper.sh
>> index cea1541..ac08125 100755
>> --- a/testcases/kernel/containers/netns/netns_helper.sh
>> +++ b/testcases/kernel/containers/netns/netns_helper.sh
>> @@ -110,6 +110,10 @@ netns_setup()
>>
>> case "$1" in
>> ns_exec)
>> + setns_check
>> + if [ $? -eq 32 ]; then
>> + tst_brkm TCONF "setns not supported"
>> + fi
>> netns_ns_exec_setup
>> TST_CLEANUP=netns_ns_exec_cleanup
>> ;;
>> diff --git a/testcases/kernel/containers/netns/netns_sysfs.sh
>> b/testcases/kernel/containers/netns/netns_sysfs.sh
>> index c10fa36..06de00f 100755
>> --- a/testcases/kernel/containers/netns/netns_sysfs.sh
>> +++ b/testcases/kernel/containers/netns/netns_sysfs.sh
>> @@ -26,6 +26,11 @@ TCID="netns_sysfs"
>> TST_TOTAL=2
>> . test.sh
>>
>> +setns_check
>> +if [ $? -eq 32 ]; then
>> + tst_brkm TCONF "setns not supported"
>> +fi
>> +
>> cleanup()
>> {
>> tst_rmdir
>> diff --git a/testcases/kernel/containers/share/setns_check.c
>> b/testcases/kernel/containers/share/setns_check.c
>> new file mode 100644
>> index 0000000..7ba891c
>> --- /dev/null
>> +++ b/testcases/kernel/containers/share/setns_check.c
>> @@ -0,0 +1,32 @@
>> +/* Copyright (c) 2015 Fujitsu Ltd.
>> + * Author: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
>> + *
>> + * This program is free software: you can redistribute it and/or modify
>> + * it under the terms of version 2 the GNU General Public License as
>> + * published by the Free Software Foundation.
>> + *
>> + * 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, see <http://www.gnu.org/licenses/>.
>> + *
>> + ***********************************************************************
>> + * Check for setns() availability, should be called before ns_exec.
>> + *
>> + */
>> +
>> +#include "test.h"
>> +#include "linux_syscall_numbers.h"
>> +
>> +char *TCID = "setns_check";
>> +
>> +int main(void)
>> +{
>> + if (syscall(__NR_setns, -1, 0) == -1 && errno == ENOSYS)
>> + tst_brkm(TCONF, NULL, "setns is not supported in the kernel");
>> + else
>> + return 0;
>> +}
>> --
>> 1.8.4.2
>>
>>
> .
>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-09-22 7:32 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-09-15 11:16 [LTP] [PATCH] containers/netns/: fix kernel supporting check Guangwen Feng
2015-09-17 8:29 ` Jan Stancek
2015-09-17 10:44 ` Guangwen Feng
2015-09-21 2:01 ` [LTP] [PATCH v2] " Guangwen Feng
2015-09-21 14:00 ` Jan Stancek
2015-09-22 7:32 ` Guangwen Feng
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