diff options
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 1307a7c2e544..4318d72e0248 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -153,13 +153,18 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num, (!sk2->sk_reuse || !sk->sk_reuse) && (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && - (!sk2->sk_reuseport || !sk->sk_reuseport || - rcu_access_pointer(sk->sk_reuseport_cb) || - !uid_eq(uid, sock_i_uid(sk2))) && saddr_comp(sk, sk2, true)) { - if (!bitmap) - return 1; - __set_bit(udp_sk(sk2)->udp_port_hash >> log, bitmap); + if (sk2->sk_reuseport && sk->sk_reuseport && + !rcu_access_pointer(sk->sk_reuseport_cb) && + uid_eq(uid, sock_i_uid(sk2))) { + if (!bitmap) + return 0; + } else { + if (!bitmap) + return 1; + __set_bit(udp_sk(sk2)->udp_port_hash >> log, + bitmap); + } } } return 0; @@ -188,11 +193,14 @@ static int udp_lib_lport_inuse2(struct net *net, __u16 num, (!sk2->sk_reuse || !sk->sk_reuse) && (!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if || sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && - (!sk2->sk_reuseport || !sk->sk_reuseport || - rcu_access_pointer(sk->sk_reuseport_cb) || - !uid_eq(uid, sock_i_uid(sk2))) && saddr_comp(sk, sk2, true)) { - res = 1; + if (sk2->sk_reuseport && sk->sk_reuseport && + !rcu_access_pointer(sk->sk_reuseport_cb) && + uid_eq(uid, sock_i_uid(sk2))) { + res = 0; + } else { + res = 1; + } break; } } @@ -285,6 +293,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, snum += rand; } while (snum != first); spin_unlock_bh(&hslot->lock); + cond_resched(); } while (++first != last); goto fail; } else { |