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mptcp: setsockopt: convert to mptcp_setsockopt_sol_socket_timestamping()

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Split timestamping handling into a new function
mptcp_setsockopt_sol_socket_timestamping().
This is preparation for extending SO_TIMESTAMPING
for PHC binding, since optval will no longer be
integer.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yangbo Lu 2021-06-30 16:11:58 +08:00 committed by David S. Miller
parent 895487a3a1
commit 6c9a0a0f23
1 changed files with 40 additions and 17 deletions
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57
net/mptcp/sockopt.c
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@ -157,19 +157,7 @@ static int mptcp_setsockopt_sol_socket_tstamp(struct mptcp_sock *msk, int optnam
struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
bool slow = lock_sock_fast(ssk);
switch (optname) {
case SO_TIMESTAMP_OLD:
case SO_TIMESTAMP_NEW:
case SO_TIMESTAMPNS_OLD:
case SO_TIMESTAMPNS_NEW:
sock_set_timestamp(sk, optname, !!val);
break;
case SO_TIMESTAMPING_NEW:
case SO_TIMESTAMPING_OLD:
sock_set_timestamping(sk, optname, val);
break;
}
sock_set_timestamp(sk, optname, !!val);
unlock_sock_fast(ssk, slow);
}
@ -178,7 +166,8 @@ static int mptcp_setsockopt_sol_socket_tstamp(struct mptcp_sock *msk, int optnam
}
static int mptcp_setsockopt_sol_socket_int(struct mptcp_sock *msk, int optname,
sockptr_t optval, unsigned int optlen)
sockptr_t optval,
unsigned int optlen)
{
int val, ret;
@ -205,14 +194,45 @@ static int mptcp_setsockopt_sol_socket_int(struct mptcp_sock *msk, int optname,
case SO_TIMESTAMP_NEW:
case SO_TIMESTAMPNS_OLD:
case SO_TIMESTAMPNS_NEW:
case SO_TIMESTAMPING_OLD:
case SO_TIMESTAMPING_NEW:
return mptcp_setsockopt_sol_socket_tstamp(msk, optname, val);
}
return -ENOPROTOOPT;
}
static int mptcp_setsockopt_sol_socket_timestamping(struct mptcp_sock *msk,
int optname,
sockptr_t optval,
unsigned int optlen)
{
struct mptcp_subflow_context *subflow;
struct sock *sk = (struct sock *)msk;
int val, ret;
ret = mptcp_get_int_option(msk, optval, optlen, &val);
if (ret)
return ret;
ret = sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname,
KERNEL_SOCKPTR(&val), sizeof(val));
if (ret)
return ret;
lock_sock(sk);
mptcp_for_each_subflow(msk, subflow) {
struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
bool slow = lock_sock_fast(ssk);
sock_set_timestamping(sk, optname, val);
unlock_sock_fast(ssk, slow);
}
release_sock(sk);
return 0;
}
static int mptcp_setsockopt_sol_socket_linger(struct mptcp_sock *msk, sockptr_t optval,
unsigned int optlen)
{
@ -299,9 +319,12 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname,
case SO_TIMESTAMP_NEW:
case SO_TIMESTAMPNS_OLD:
case SO_TIMESTAMPNS_NEW:
return mptcp_setsockopt_sol_socket_int(msk, optname, optval,
optlen);
case SO_TIMESTAMPING_OLD:
case SO_TIMESTAMPING_NEW:
return mptcp_setsockopt_sol_socket_int(msk, optname, optval, optlen);
return mptcp_setsockopt_sol_socket_timestamping(msk, optname,
optval, optlen);
case SO_LINGER:
return mptcp_setsockopt_sol_socket_linger(msk, optval, optlen);
case SO_RCVLOWAT: