[PATCH net-next] net/sched: cls_flower: validate ct_state for invalid and reply flags

[wenxu]

From: wenxu <we...@ucloud.cn>

Add invalid and reply flags validate in the fl_validate_ct_state.

Signed-off-by: wenxu <we...@ucloud.cn>
---
 net/sched/cls_flower.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 2409e52..18430db 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -1417,6 +1417,21 @@ static int fl_validate_ct_state(u16 state, struct nlattr 
*tb,
                return -EINVAL;
        }
 
+       if (state & TCA_FLOWER_KEY_CT_FLAGS_INVALID &&
+           state & ~(TCA_FLOWER_KEY_CT_FLAGS_TRACKED |
+                     TCA_FLOWER_KEY_CT_FLAGS_INVALID)) {
+               NL_SET_ERR_MSG_ATTR(extack, tb,
+                                   "when inv is set, only trk also be set");
+               return -EINVAL;
+       }
+
+       if (state & TCA_FLOWER_KEY_CT_FLAGS_NEW &&
+           state & TCA_FLOWER_KEY_CT_FLAGS_REPLY) {
+               NL_SET_ERR_MSG_ATTR(extack, tb,
+                                   "new and rpl are mutually exclusive");
+               return -EINVAL;
+       }
+
        return 0;
 }
 
-- 
1.8.3.1