net: Eliminate no_check from protosw
It doesn't seem like an protocols are setting anything other than the default, and allowing to arbitrarily disable checksums for a whole protocol seems dangerous. This can be done on a per socket basis. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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14 changed files with 0 additions and 24 deletions
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@ -86,7 +86,6 @@ struct inet_protosw {
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struct proto *prot;
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struct proto *prot;
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const struct proto_ops *ops;
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const struct proto_ops *ops;
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char no_check; /* checksum on rcv/xmit/none? */
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unsigned char flags; /* See INET_PROTOSW_* below. */
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unsigned char flags; /* See INET_PROTOSW_* below. */
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};
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};
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#define INET_PROTOSW_REUSE 0x01 /* Are ports automatically reusable? */
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#define INET_PROTOSW_REUSE 0x01 /* Are ports automatically reusable? */
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@ -1024,7 +1024,6 @@ static struct inet_protosw dccp_v4_protosw = {
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.protocol = IPPROTO_DCCP,
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.protocol = IPPROTO_DCCP,
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.prot = &dccp_v4_prot,
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.prot = &dccp_v4_prot,
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.ops = &inet_dccp_ops,
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.ops = &inet_dccp_ops,
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.no_check = 0,
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.flags = INET_PROTOSW_ICSK,
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.flags = INET_PROTOSW_ICSK,
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};
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};
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@ -254,7 +254,6 @@ static int inet_create(struct net *net, struct socket *sock, int protocol,
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struct inet_sock *inet;
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struct inet_sock *inet;
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struct proto *answer_prot;
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struct proto *answer_prot;
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unsigned char answer_flags;
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unsigned char answer_flags;
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char answer_no_check;
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int try_loading_module = 0;
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int try_loading_module = 0;
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int err;
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int err;
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@ -312,7 +311,6 @@ static int inet_create(struct net *net, struct socket *sock, int protocol,
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sock->ops = answer->ops;
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sock->ops = answer->ops;
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answer_prot = answer->prot;
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answer_prot = answer->prot;
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answer_no_check = answer->no_check;
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answer_flags = answer->flags;
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answer_flags = answer->flags;
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rcu_read_unlock();
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rcu_read_unlock();
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@ -324,7 +322,6 @@ static int inet_create(struct net *net, struct socket *sock, int protocol,
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goto out;
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goto out;
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err = 0;
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err = 0;
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sk->sk_no_check = answer_no_check;
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if (INET_PROTOSW_REUSE & answer_flags)
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if (INET_PROTOSW_REUSE & answer_flags)
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sk->sk_reuse = SK_CAN_REUSE;
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sk->sk_reuse = SK_CAN_REUSE;
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@ -1002,7 +999,6 @@ static struct inet_protosw inetsw_array[] =
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.protocol = IPPROTO_TCP,
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.protocol = IPPROTO_TCP,
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.prot = &tcp_prot,
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.prot = &tcp_prot,
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.ops = &inet_stream_ops,
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.ops = &inet_stream_ops,
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.no_check = 0,
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.flags = INET_PROTOSW_PERMANENT |
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.flags = INET_PROTOSW_PERMANENT |
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INET_PROTOSW_ICSK,
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INET_PROTOSW_ICSK,
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},
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},
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@ -1012,7 +1008,6 @@ static struct inet_protosw inetsw_array[] =
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.protocol = IPPROTO_UDP,
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.protocol = IPPROTO_UDP,
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.prot = &udp_prot,
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.prot = &udp_prot,
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.ops = &inet_dgram_ops,
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.ops = &inet_dgram_ops,
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.no_check = UDP_CSUM_DEFAULT,
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.flags = INET_PROTOSW_PERMANENT,
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.flags = INET_PROTOSW_PERMANENT,
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},
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},
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@ -1021,7 +1016,6 @@ static struct inet_protosw inetsw_array[] =
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.protocol = IPPROTO_ICMP,
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.protocol = IPPROTO_ICMP,
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.prot = &ping_prot,
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.prot = &ping_prot,
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.ops = &inet_dgram_ops,
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.ops = &inet_dgram_ops,
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.no_check = UDP_CSUM_DEFAULT,
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.flags = INET_PROTOSW_REUSE,
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.flags = INET_PROTOSW_REUSE,
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},
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},
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@ -1030,7 +1024,6 @@ static struct inet_protosw inetsw_array[] =
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.protocol = IPPROTO_IP, /* wild card */
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.protocol = IPPROTO_IP, /* wild card */
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.prot = &raw_prot,
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.prot = &raw_prot,
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.ops = &inet_sockraw_ops,
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.ops = &inet_sockraw_ops,
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.no_check = UDP_CSUM_DEFAULT,
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.flags = INET_PROTOSW_REUSE,
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.flags = INET_PROTOSW_REUSE,
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}
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}
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};
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};
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@ -70,7 +70,6 @@ static struct inet_protosw udplite4_protosw = {
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.protocol = IPPROTO_UDPLITE,
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.protocol = IPPROTO_UDPLITE,
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.prot = &udplite_prot,
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.prot = &udplite_prot,
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.ops = &inet_dgram_ops,
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.ops = &inet_dgram_ops,
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.no_check = 0, /* must checksum (RFC 3828) */
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.flags = INET_PROTOSW_PERMANENT,
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.flags = INET_PROTOSW_PERMANENT,
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};
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};
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@ -106,7 +106,6 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
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struct inet_protosw *answer;
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struct inet_protosw *answer;
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struct proto *answer_prot;
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struct proto *answer_prot;
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unsigned char answer_flags;
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unsigned char answer_flags;
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char answer_no_check;
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int try_loading_module = 0;
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int try_loading_module = 0;
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int err;
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int err;
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@ -162,7 +161,6 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
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sock->ops = answer->ops;
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sock->ops = answer->ops;
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answer_prot = answer->prot;
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answer_prot = answer->prot;
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answer_no_check = answer->no_check;
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answer_flags = answer->flags;
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answer_flags = answer->flags;
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rcu_read_unlock();
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rcu_read_unlock();
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@ -176,7 +174,6 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
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sock_init_data(sock, sk);
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sock_init_data(sock, sk);
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err = 0;
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err = 0;
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sk->sk_no_check = answer_no_check;
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if (INET_PROTOSW_REUSE & answer_flags)
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if (INET_PROTOSW_REUSE & answer_flags)
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sk->sk_reuse = SK_CAN_REUSE;
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sk->sk_reuse = SK_CAN_REUSE;
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@ -51,7 +51,6 @@ static struct inet_protosw pingv6_protosw = {
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.protocol = IPPROTO_ICMPV6,
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.protocol = IPPROTO_ICMPV6,
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.prot = &pingv6_prot,
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.prot = &pingv6_prot,
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.ops = &inet6_dgram_ops,
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.ops = &inet6_dgram_ops,
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.no_check = UDP_CSUM_DEFAULT,
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.flags = INET_PROTOSW_REUSE,
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.flags = INET_PROTOSW_REUSE,
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};
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};
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@ -1322,7 +1322,6 @@ static struct inet_protosw rawv6_protosw = {
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.protocol = IPPROTO_IP, /* wild card */
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.protocol = IPPROTO_IP, /* wild card */
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.prot = &rawv6_prot,
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.prot = &rawv6_prot,
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.ops = &inet6_sockraw_ops,
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.ops = &inet6_sockraw_ops,
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.no_check = UDP_CSUM_DEFAULT,
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.flags = INET_PROTOSW_REUSE,
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.flags = INET_PROTOSW_REUSE,
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};
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};
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@ -1992,7 +1992,6 @@ static struct inet_protosw tcpv6_protosw = {
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.protocol = IPPROTO_TCP,
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.protocol = IPPROTO_TCP,
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.prot = &tcpv6_prot,
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.prot = &tcpv6_prot,
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.ops = &inet6_stream_ops,
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.ops = &inet6_stream_ops,
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.no_check = 0,
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.flags = INET_PROTOSW_PERMANENT |
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.flags = INET_PROTOSW_PERMANENT |
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INET_PROTOSW_ICSK,
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INET_PROTOSW_ICSK,
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};
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};
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@ -1507,7 +1507,6 @@ static struct inet_protosw udpv6_protosw = {
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.protocol = IPPROTO_UDP,
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.protocol = IPPROTO_UDP,
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.prot = &udpv6_prot,
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.prot = &udpv6_prot,
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.ops = &inet6_dgram_ops,
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.ops = &inet6_dgram_ops,
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.no_check = UDP_CSUM_DEFAULT,
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.flags = INET_PROTOSW_PERMANENT,
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.flags = INET_PROTOSW_PERMANENT,
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};
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};
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@ -64,7 +64,6 @@ static struct inet_protosw udplite6_protosw = {
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.protocol = IPPROTO_UDPLITE,
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.protocol = IPPROTO_UDPLITE,
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.prot = &udplitev6_prot,
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.prot = &udplitev6_prot,
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.ops = &inet6_dgram_ops,
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.ops = &inet6_dgram_ops,
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.no_check = 0,
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.flags = INET_PROTOSW_PERMANENT,
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.flags = INET_PROTOSW_PERMANENT,
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};
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};
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@ -606,7 +606,6 @@ static struct inet_protosw l2tp_ip_protosw = {
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.protocol = IPPROTO_L2TP,
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.protocol = IPPROTO_L2TP,
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.prot = &l2tp_ip_prot,
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.prot = &l2tp_ip_prot,
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.ops = &l2tp_ip_ops,
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.ops = &l2tp_ip_ops,
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.no_check = 0,
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};
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};
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static struct net_protocol l2tp_ip_protocol __read_mostly = {
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static struct net_protocol l2tp_ip_protocol __read_mostly = {
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@ -755,7 +755,6 @@ static struct inet_protosw l2tp_ip6_protosw = {
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.protocol = IPPROTO_L2TP,
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.protocol = IPPROTO_L2TP,
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.prot = &l2tp_ip6_prot,
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.prot = &l2tp_ip6_prot,
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.ops = &l2tp_ip6_ops,
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.ops = &l2tp_ip6_ops,
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.no_check = 0,
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};
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};
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static struct inet6_protocol l2tp_ip6_protocol __read_mostly = {
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static struct inet6_protocol l2tp_ip6_protocol __read_mostly = {
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@ -943,7 +943,6 @@ static struct inet_protosw sctpv6_seqpacket_protosw = {
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.protocol = IPPROTO_SCTP,
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.protocol = IPPROTO_SCTP,
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.prot = &sctpv6_prot,
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.prot = &sctpv6_prot,
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.ops = &inet6_seqpacket_ops,
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.ops = &inet6_seqpacket_ops,
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.no_check = 0,
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.flags = SCTP_PROTOSW_FLAG
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.flags = SCTP_PROTOSW_FLAG
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};
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};
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static struct inet_protosw sctpv6_stream_protosw = {
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static struct inet_protosw sctpv6_stream_protosw = {
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@ -951,7 +950,6 @@ static struct inet_protosw sctpv6_stream_protosw = {
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.protocol = IPPROTO_SCTP,
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.protocol = IPPROTO_SCTP,
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.prot = &sctpv6_prot,
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.prot = &sctpv6_prot,
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.ops = &inet6_seqpacket_ops,
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.ops = &inet6_seqpacket_ops,
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.no_check = 0,
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.flags = SCTP_PROTOSW_FLAG,
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.flags = SCTP_PROTOSW_FLAG,
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};
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};
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@ -1017,7 +1017,6 @@ static struct inet_protosw sctp_seqpacket_protosw = {
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.protocol = IPPROTO_SCTP,
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.protocol = IPPROTO_SCTP,
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.prot = &sctp_prot,
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.prot = &sctp_prot,
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.ops = &inet_seqpacket_ops,
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.ops = &inet_seqpacket_ops,
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.no_check = 0,
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.flags = SCTP_PROTOSW_FLAG
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.flags = SCTP_PROTOSW_FLAG
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};
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};
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static struct inet_protosw sctp_stream_protosw = {
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static struct inet_protosw sctp_stream_protosw = {
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@ -1025,7 +1024,6 @@ static struct inet_protosw sctp_stream_protosw = {
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.protocol = IPPROTO_SCTP,
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.protocol = IPPROTO_SCTP,
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.prot = &sctp_prot,
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.prot = &sctp_prot,
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.ops = &inet_seqpacket_ops,
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.ops = &inet_seqpacket_ops,
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.no_check = 0,
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.flags = SCTP_PROTOSW_FLAG
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.flags = SCTP_PROTOSW_FLAG
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};
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};
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