diff options
Diffstat (limited to 'datapath/flow.c')
| -rw-r--r-- | datapath/flow.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/datapath/flow.c b/datapath/flow.c index e90b36a93..eb67cf450 100644 --- a/datapath/flow.c +++ b/datapath/flow.c @@ -82,6 +82,20 @@ static inline bool icmphdr_ok(struct sk_buff *skb) return skb->len >= skb_transport_offset(skb) + sizeof(struct icmphdr); } +u64 flow_used_time(unsigned long flow_jiffies) +{ + struct timespec cur_ts; + u64 cur_ms, idle_ms; + + ktime_get_ts(&cur_ts); + idle_ms = jiffies_to_msecs(jiffies - flow_jiffies); + cur_ms = (u64)cur_ts.tv_sec * MSEC_PER_SEC + + cur_ts.tv_nsec / NSEC_PER_MSEC; + + return cur_ms - idle_ms; +} + + #define TCP_FLAGS_OFFSET 13 #define TCP_FLAG_MASK 0x3f |