diff options
| author | Deepa Dinamani <deepa.kernel@gmail.com> | 2019-02-02 18:34:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-03 22:17:31 +0300 |
| commit | 887feae36aee6c08e0dafcdaa5ba921abbb2c56b (patch) | |
| tree | 1c34072c8057e8d5babf22242ec8b1a383998ce0 /net/ipv4/tcp.c | |
| parent | 98bb03c865d7ddf7a9a2eb80f9a0dd5f261c56ad (diff) | |
| download | linux-887feae36aee6c08e0dafcdaa5ba921abbb2c56b.tar.xz | |
socket: Add SO_TIMESTAMP[NS]_NEW
Add SO_TIMESTAMP_NEW and SO_TIMESTAMPNS_NEW variants of
socket timestamp options.
These are the y2038 safe versions of the SO_TIMESTAMP_OLD
and SO_TIMESTAMPNS_OLD for all architectures.
Note that the format of scm_timestamping.ts[0] is not changed
in this patch.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: jejb@parisc-linux.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: linux-alpha@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 3ce41b04c0f0..4e9388bf104a 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1861,20 +1861,37 @@ static void tcp_update_recv_tstamps(struct sk_buff *skb, static void tcp_recv_timestamp(struct msghdr *msg, const struct sock *sk, struct scm_timestamping *tss) { - struct __kernel_old_timeval tv; + int new_tstamp = sock_flag(sk, SOCK_TSTAMP_NEW); bool has_timestamping = false; if (tss->ts[0].tv_sec || tss->ts[0].tv_nsec) { if (sock_flag(sk, SOCK_RCVTSTAMP)) { if (sock_flag(sk, SOCK_RCVTSTAMPNS)) { - put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, - sizeof(tss->ts[0]), &tss->ts[0]); + if (new_tstamp) { + struct __kernel_timespec kts = {tss->ts[0].tv_sec, tss->ts[0].tv_nsec}; + + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_NEW, + sizeof(kts), &kts); + } else { + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMPNS_OLD, + sizeof(tss->ts[0]), &tss->ts[0]); + } } else { - tv.tv_sec = tss->ts[0].tv_sec; - tv.tv_usec = tss->ts[0].tv_nsec / 1000; - - put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, - sizeof(tv), &tv); + if (new_tstamp) { + struct __kernel_sock_timeval stv; + + stv.tv_sec = tss->ts[0].tv_sec; + stv.tv_usec = tss->ts[0].tv_nsec / 1000; + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_NEW, + sizeof(stv), &stv); + } else { + struct __kernel_old_timeval tv; + + tv.tv_sec = tss->ts[0].tv_sec; + tv.tv_usec = tss->ts[0].tv_nsec / 1000; + put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP_OLD, + sizeof(tv), &tv); + } } } |