[ovs-dev] [PATCH] ofp-util: Add missing 'break; ' in bad_group_cmd().

[Ben Pfaff]

Otherwise you get an assertion failure in place of a helpful error message.

Also fix a nearby style violation and add a pair of tests to prevent
regression.

Found by LLVM scan-build.

Reported-by: Kevin Lo <kevlo at FreeBSD.org>
Signed-off-by: Ben Pfaff <blp at nicira.com>
---
 lib/ofp-util.c   |  4 +++-
 tests/ofproto.at | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/ofp-util.c b/lib/ofp-util.c
index 277fdfe..2eb199f 100644
--- a/lib/ofp-util.c
+++ b/lib/ofp-util.c
@@ -8170,7 +8170,8 @@ ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version,
 }
 
 static void
-bad_group_cmd(enum ofp15_group_mod_command cmd) {
+bad_group_cmd(enum ofp15_group_mod_command cmd)
+{
     const char *opt_version;
     const char *version;
     const char *cmd_str;
@@ -8187,6 +8188,7 @@ bad_group_cmd(enum ofp15_group_mod_command cmd) {
     case OFPGC15_REMOVE_BUCKET:
         version = "1.5";
         opt_version = "15";
+        break;
 
     default:
         OVS_NOT_REACHED();
diff --git a/tests/ofproto.at b/tests/ofproto.at
index 5ae3139..d64b280 100644
--- a/tests/ofproto.at
+++ b/tests/ofproto.at
@@ -454,6 +454,11 @@ AT_CHECK([STRIP_XIDS stdout], [0], [dnl
 OFPST_GROUP_DESC reply (OF1.5):
  group_id=1234,type=all,bucket=bucket_id:0,actions=output:0,bucket=bucket_id:1,actions=output:1,bucket=bucket_id:10,actions=output:10,bucket=bucket_id:11,actions=output:11,bucket=bucket_id:12,actions=output:12,bucket=bucket_id:13,actions=output:13,bucket=bucket_id:14,actions=output:14,bucket=bucket_id:15,actions=output:15,bucket=bucket_id:20,actions=output:20,bucket=bucket_id:21,actions=output:21
 ])
+
+# Negative check.
+AT_CHECK([ovs-ofctl -O OpenFlow11 -vwarn insert-buckets br0 group_id=1234,command_bucket_id=first,bucket=bucket_id:0,actions=output:0,bucket=bucket_id:1,actions=output:1], [1], [],
+  [insert-bucket needs OpenFlow 1.5 or later ('-O OpenFlow15')
+])
 OVS_VSWITCHD_STOP
 AT_CLEANUP
 
@@ -508,6 +513,11 @@ OFPT_GROUP_MOD (OF1.5):
  REMOVE_BUCKET command_bucket_id:1,group_id=1234
 ])
 OVS_VSWITCHD_STOP
+
+# Negative check.
+AT_CHECK([ovs-ofctl -O OpenFlow11 -vwarn remove-buckets br0 group_id=1234,command_bucket_id=last], [1], [],
+  [ovs-ofctl: insert-bucket needs OpenFlow 1.5 or later ('-O OpenFlow15')
+])
 AT_CLEANUP
 
 dnl This is really bare-bones.
-- 
2.1.3