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Diffstat (limited to 'net/mptcp/sockopt.c')
-rw-r--r--net/mptcp/sockopt.c33
1 files changed, 29 insertions, 4 deletions
diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c
index 3536807337..ef3edba754 100644
--- a/net/mptcp/sockopt.c
+++ b/net/mptcp/sockopt.c
@@ -440,6 +440,8 @@ static bool mptcp_supported_sockopt(int level, int optname)
/* should work fine */
case IP_FREEBIND:
case IP_TRANSPARENT:
+ case IP_BIND_ADDRESS_NO_PORT:
+ case IP_LOCAL_PORT_RANGE:
/* the following are control cmsg related */
case IP_PKTINFO:
@@ -455,7 +457,6 @@ static bool mptcp_supported_sockopt(int level, int optname)
/* common stuff that need some love */
case IP_TOS:
case IP_TTL:
- case IP_BIND_ADDRESS_NO_PORT:
case IP_MTU_DISCOVER:
case IP_RECVERR:
@@ -683,8 +684,8 @@ static int mptcp_setsockopt_sol_tcp_nodelay(struct mptcp_sock *msk, sockptr_t op
return 0;
}
-static int mptcp_setsockopt_sol_ip_set_transparent(struct mptcp_sock *msk, int optname,
- sockptr_t optval, unsigned int optlen)
+static int mptcp_setsockopt_sol_ip_set(struct mptcp_sock *msk, int optname,
+ sockptr_t optval, unsigned int optlen)
{
struct sock *sk = (struct sock *)msk;
struct sock *ssk;
@@ -710,6 +711,14 @@ static int mptcp_setsockopt_sol_ip_set_transparent(struct mptcp_sock *msk, int o
inet_assign_bit(TRANSPARENT, ssk,
inet_test_bit(TRANSPARENT, sk));
break;
+ case IP_BIND_ADDRESS_NO_PORT:
+ inet_assign_bit(BIND_ADDRESS_NO_PORT, ssk,
+ inet_test_bit(BIND_ADDRESS_NO_PORT, sk));
+ break;
+ case IP_LOCAL_PORT_RANGE:
+ WRITE_ONCE(inet_sk(ssk)->local_port_range,
+ READ_ONCE(inet_sk(sk)->local_port_range));
+ break;
default:
release_sock(sk);
WARN_ON_ONCE(1);
@@ -755,7 +764,9 @@ static int mptcp_setsockopt_v4(struct mptcp_sock *msk, int optname,
switch (optname) {
case IP_FREEBIND:
case IP_TRANSPARENT:
- return mptcp_setsockopt_sol_ip_set_transparent(msk, optname, optval, optlen);
+ case IP_BIND_ADDRESS_NO_PORT:
+ case IP_LOCAL_PORT_RANGE:
+ return mptcp_setsockopt_sol_ip_set(msk, optname, optval, optlen);
case IP_TOS:
return mptcp_setsockopt_v4_set_tos(msk, optname, optval, optlen);
}
@@ -938,6 +949,8 @@ void mptcp_diag_fill_info(struct mptcp_sock *msk, struct mptcp_info *info)
info->mptcpi_bytes_sent = msk->bytes_sent;
info->mptcpi_bytes_received = msk->bytes_received;
info->mptcpi_bytes_retrans = msk->bytes_retrans;
+ info->mptcpi_subflows_total = info->mptcpi_subflows +
+ __mptcp_has_initial_subflow(msk);
unlock_sock_fast(sk, slow);
}
EXPORT_SYMBOL_GPL(mptcp_diag_fill_info);
@@ -1348,6 +1361,12 @@ static int mptcp_getsockopt_v4(struct mptcp_sock *msk, int optname,
switch (optname) {
case IP_TOS:
return mptcp_put_int_option(msk, optval, optlen, READ_ONCE(inet_sk(sk)->tos));
+ case IP_BIND_ADDRESS_NO_PORT:
+ return mptcp_put_int_option(msk, optval, optlen,
+ inet_test_bit(BIND_ADDRESS_NO_PORT, sk));
+ case IP_LOCAL_PORT_RANGE:
+ return mptcp_put_int_option(msk, optval, optlen,
+ READ_ONCE(inet_sk(sk)->local_port_range));
}
return -EOPNOTSUPP;
@@ -1448,6 +1467,8 @@ static void sync_socket_options(struct mptcp_sock *msk, struct sock *ssk)
inet_assign_bit(TRANSPARENT, ssk, inet_test_bit(TRANSPARENT, sk));
inet_assign_bit(FREEBIND, ssk, inet_test_bit(FREEBIND, sk));
+ inet_assign_bit(BIND_ADDRESS_NO_PORT, ssk, inet_test_bit(BIND_ADDRESS_NO_PORT, sk));
+ WRITE_ONCE(inet_sk(ssk)->local_port_range, READ_ONCE(inet_sk(sk)->local_port_range));
}
void mptcp_sockopt_sync_locked(struct mptcp_sock *msk, struct sock *ssk)
@@ -1479,6 +1500,10 @@ int mptcp_set_rcvlowat(struct sock *sk, int val)
struct mptcp_subflow_context *subflow;
int space, cap;
+ /* bpf can land here with a wrong sk type */
+ if (sk->sk_protocol == IPPROTO_TCP)
+ return -EINVAL;
+
if (sk->sk_userlocks & SOCK_RCVBUF_LOCK)
cap = sk->sk_rcvbuf >> 1;
else