diff options
| -rw-r--r-- | net/sched/cls_flower.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index 35ac28d0720c..333f8e268431 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -442,32 +442,32 @@ static void fl_set_key_flag(u32 flower_key, u32 flower_mask, } } -static void fl_set_key_flags(struct nlattr **tb, - u32 *flags_key, u32 *flags_mask) +static int fl_set_key_flags(struct nlattr **tb, + u32 *flags_key, u32 *flags_mask) { u32 key, mask; - if (!tb[TCA_FLOWER_KEY_FLAGS]) - return; + /* mask is mandatory for flags */ + if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) + return -EINVAL; key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); - - if (!tb[TCA_FLOWER_KEY_FLAGS_MASK]) - mask = ~0; - else - mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); + mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); *flags_key = 0; *flags_mask = 0; fl_set_key_flag(key, mask, flags_key, flags_mask, TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT); + + return 0; } static int fl_set_key(struct net *net, struct nlattr **tb, struct fl_flow_key *key, struct fl_flow_key *mask) { __be16 ethertype; + int ret = 0; #ifdef CONFIG_NET_CLS_IND if (tb[TCA_FLOWER_INDEV]) { int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]); @@ -614,9 +614,10 @@ static int fl_set_key(struct net *net, struct nlattr **tb, &mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK, sizeof(key->enc_tp.dst)); - fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); + if (tb[TCA_FLOWER_KEY_FLAGS]) + ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags); - return 0; + return ret; } static bool fl_mask_eq(struct fl_flow_mask *mask1, |