diff options
| author | Abhishek Chauhan <quic_abchauha@quicinc.com> | 2024-03-14 22:24:04 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-03-18 15:29:53 +0300 |
| commit | 35c3e27917568192927c785fc380f139255468b4 (patch) | |
| tree | cea90dc6e4c3226ed8f9a5c6c11bdf9971cba4f7 /net/ipv6 | |
| parent | f490c492e946d8ffbe65ad4efc66de3c5ede30a4 (diff) | |
| download | linux-35c3e27917568192927c785fc380f139255468b4.tar.xz | |
Revert "net: Re-use and set mono_delivery_time bit for userspace tstamp packets"
This reverts commit 885c36e59f46375c138de18ff1692f18eff67b7f.
The patch currently broke the bpf selftest test_tc_dtime because
uapi field __sk_buff->tstamp_type depends on skb->mono_delivery_time which
does not necessarily mean mono with the original fix as the bit was re-used
for userspace timestamp as well to avoid tstamp reset in the forwarding
path. To solve this we need to keep mono_delivery_time as is and
introduce another bit called user_delivery_time and fall back to the
initial proposal of setting the user_delivery_time bit based on
sk_clockid set from userspace.
Fixes: 885c36e59f46 ("net: Re-use and set mono_delivery_time bit for userspace tstamp packets")
Link: https://lore.kernel.org/netdev/bc037db4-58bb-4861-ac31-a361a93841d3@linux.dev/
Signed-off-by: Abhishek Chauhan <quic_abchauha@quicinc.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_output.c | 2 | ||||
| -rw-r--r-- | net/ipv6/raw.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 02eeca5492cd..b9dd3a66e423 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1925,7 +1925,7 @@ struct sk_buff *__ip6_make_skb(struct sock *sk, skb->priority = READ_ONCE(sk->sk_priority); skb->mark = cork->base.mark; skb->tstamp = cork->base.transmit_time; - skb->mono_delivery_time = !!skb->tstamp; + ip6_cork_steal_dst(skb, cork); IP6_INC_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS); if (proto == IPPROTO_ICMPV6) { diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index ca49e6617afa..0d896ca7b589 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -622,7 +622,7 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length, skb->priority = READ_ONCE(sk->sk_priority); skb->mark = sockc->mark; skb->tstamp = sockc->transmit_time; - skb->mono_delivery_time = !!skb->tstamp; + skb_put(skb, length); skb_reset_network_header(skb); iph = ipv6_hdr(skb); |