[LTP] [PATCH v1] tst_net.sh: Add more tst_require_cmds check

[Wei Gao]

More strict check for ns_xxx etc will help avoid following issue:
https://github.com/linux-test-project/ltp/issues/991

Signed-off-by: Wei Gao <wegao@suse.com>
Suggested-by: Petr Vorel <pvorel@suse.cz>
---
 testcases/lib/tst_net.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/testcases/lib/tst_net.sh b/testcases/lib/tst_net.sh
index ceb45c98d..ec915ad74 100644
--- a/testcases/lib/tst_net.sh
+++ b/testcases/lib/tst_net.sh
@@ -205,6 +205,7 @@ tst_rhost_run()
 	sh_cmd="$pre_cmd $cmd $post_cmd"
 
 	if [ -n "${TST_USE_NETNS:-}" ]; then
+		tst_require_cmds ip ns_create ns_exec ns_ifmove
 		use="NETNS"
 		rcmd="$LTP_NETNS sh -c"
 	else
@@ -1006,6 +1007,7 @@ IPV6_RHOST="${IPV6_RHOST:-fd00:1:1:1::1/64}"
 # tst_net_iface_prefix -h
 # tst_net_vars -h
 if [ -z "$_tst_net_parse_variables" ]; then
+	tst_require_cmds tst_net_ip_prefix
 	eval $(tst_net_ip_prefix $IPV4_LHOST || echo "exit $?")
 	eval $(tst_net_ip_prefix -r $IPV4_RHOST || echo "exit $?")
 
-- 
2.35.3