inet: move inet->bind_address_no_port to inet->inet_flags
IP_BIND_ADDRESS_NO_PORT socket option can now be set/read without locking the socket. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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f04b8d3478
Коммит
ca571e2eb7
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@ -229,8 +229,7 @@ struct inet_sock {
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__u8 min_ttl;
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__u8 mc_ttl;
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__u8 pmtudisc;
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__u8 bind_address_no_port:1,
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defer_connect:1; /* Indicates that fastopen_connect is set
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__u8 defer_connect:1; /* Indicates that fastopen_connect is set
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* and cookie exists so we defer connect
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* until first data frame is written
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*/
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@ -270,6 +269,7 @@ enum {
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INET_FLAGS_TRANSPARENT = 15,
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INET_FLAGS_IS_ICSK = 16,
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INET_FLAGS_NODEFRAG = 17,
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INET_FLAGS_BIND_ADDRESS_NO_PORT = 18,
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};
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/* cmsg flags for inet */
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@ -529,7 +529,7 @@ int __inet_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
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inet->inet_saddr = 0; /* Use device */
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/* Make sure we are allowed to bind here. */
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if (snum || !(inet->bind_address_no_port ||
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if (snum || !(inet_test_bit(BIND_ADDRESS_NO_PORT, sk) ||
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(flags & BIND_FORCE_ADDRESS_NO_PORT))) {
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err = sk->sk_prot->get_port(sk, snum);
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if (err) {
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@ -190,7 +190,7 @@ int inet_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
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inet_sockopt.transparent = inet_test_bit(TRANSPARENT, sk);
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inet_sockopt.mc_all = inet_test_bit(MC_ALL, sk);
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inet_sockopt.nodefrag = inet_test_bit(NODEFRAG, sk);
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inet_sockopt.bind_address_no_port = inet->bind_address_no_port;
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inet_sockopt.bind_address_no_port = inet_test_bit(BIND_ADDRESS_NO_PORT, sk);
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inet_sockopt.recverr_rfc4884 = inet_test_bit(RECVERR_RFC4884, sk);
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inet_sockopt.defer_connect = inet->defer_connect;
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if (nla_put(skb, INET_DIAG_SOCKOPT, sizeof(inet_sockopt),
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@ -1020,6 +1020,9 @@ int do_ip_setsockopt(struct sock *sk, int level, int optname,
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return -ENOPROTOOPT;
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inet_assign_bit(NODEFRAG, sk, val);
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return 0;
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case IP_BIND_ADDRESS_NO_PORT:
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inet_assign_bit(BIND_ADDRESS_NO_PORT, sk, val);
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return 0;
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}
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err = 0;
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@ -1084,9 +1087,6 @@ int do_ip_setsockopt(struct sock *sk, int level, int optname,
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goto e_inval;
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inet->uc_ttl = val;
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break;
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case IP_BIND_ADDRESS_NO_PORT:
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inet->bind_address_no_port = val ? 1 : 0;
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break;
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case IP_MTU_DISCOVER:
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if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_OMIT)
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goto e_inval;
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@ -1587,6 +1587,9 @@ int do_ip_getsockopt(struct sock *sk, int level, int optname,
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case IP_NODEFRAG:
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val = inet_test_bit(NODEFRAG, sk);
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goto copyval;
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case IP_BIND_ADDRESS_NO_PORT:
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val = inet_test_bit(BIND_ADDRESS_NO_PORT, sk);
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goto copyval;
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}
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if (needs_rtnl)
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@ -1634,9 +1637,6 @@ int do_ip_getsockopt(struct sock *sk, int level, int optname,
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inet->uc_ttl);
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break;
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}
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case IP_BIND_ADDRESS_NO_PORT:
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val = inet->bind_address_no_port;
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break;
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case IP_MTU_DISCOVER:
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val = inet->pmtudisc;
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break;
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@ -399,7 +399,7 @@ static int __inet6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len,
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sk->sk_ipv6only = 1;
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/* Make sure we are allowed to bind here. */
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if (snum || !(inet->bind_address_no_port ||
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if (snum || !(inet_test_bit(BIND_ADDRESS_NO_PORT, sk) ||
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(flags & BIND_FORCE_ADDRESS_NO_PORT))) {
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err = sk->sk_prot->get_port(sk, snum);
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if (err) {
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