*/
#include <linux/module.h>
+#include <linux/config.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
ipv6_addr_copy(&np->saddr, saddr);
inet->rcv_saddr = LOOPBACK4_IPV6;
- sk->sk_gso_type = SKB_GSO_TCPV6;
- __ip6_dst_store(sk, dst, NULL);
+ ip6_dst_store(sk, dst, NULL);
+ sk->sk_route_caps = dst->dev->features &
+ ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
icsk->icsk_ext_hdr_len = 0;
if (np->opt)
case TCP_SYN_RECV: /* Cannot happen.
It can, it SYNs are crossed. --ANK */
if (!sock_owned_by_user(sk)) {
+ TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
sk->sk_err = err;
sk->sk_error_report(sk); /* Wake people up to see the error (see connect in sock.c) */
}
}
-static int tcp_v6_gso_send_check(struct sk_buff *skb)
-{
- struct ipv6hdr *ipv6h;
- struct tcphdr *th;
-
- if (!pskb_may_pull(skb, sizeof(*th)))
- return -EINVAL;
-
- ipv6h = skb->nh.ipv6h;
- th = skb->h.th;
-
- th->check = 0;
- th->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, skb->len,
- IPPROTO_TCP, 0);
- skb->csum = offsetof(struct tcphdr, check);
- skb->ip_summed = CHECKSUM_HW;
- return 0;
-}
static void tcp_v6_send_reset(struct sk_buff *skb)
{
if (req)
reqsk_free(req);
+ TCP_INC_STATS_BH(TCP_MIB_ATTEMPTFAILS);
return 0; /* don't send reset */
}
* comment in that function for the gory details. -acme
*/
- newsk->sk_gso_type = SKB_GSO_TCPV6;
- __ip6_dst_store(newsk, dst, NULL);
+ ip6_dst_store(newsk, dst, NULL);
+ newsk->sk_route_caps = dst->dev->features &
+ ~(NETIF_F_IP_CSUM | NETIF_F_TSO);
newtcp6sk = (struct tcp6_sock *)newsk;
inet_sk(newsk)->pinet6 = &newtcp6sk->inet6;
inet_csk(newsk)->icsk_ext_hdr_len = (newnp->opt->opt_nflen +
newnp->opt->opt_flen);
- tcp_mtup_init(newsk);
tcp_sync_mss(newsk, dst_mtu(dst));
newtp->advmss = dst_metric(dst, RTAX_ADVMSS);
tcp_initialize_rcv_mss(newsk);
skb->dev = NULL;
- bh_lock_sock_nested(sk);
+ bh_lock_sock(sk);
ret = 0;
if (!sock_owned_by_user(sk)) {
-#ifdef CONFIG_NET_DMA
- struct tcp_sock *tp = tcp_sk(sk);
- if (tp->ucopy.dma_chan)
- ret = tcp_v6_do_rcv(sk, skb);
- else
-#endif
- {
- if (!tcp_prequeue(sk, skb))
- ret = tcp_v6_do_rcv(sk, skb);
- }
+ if (!tcp_prequeue(sk, skb))
+ ret = tcp_v6_do_rcv(sk, skb);
} else
sk_add_backlog(sk, skb);
bh_unlock_sock(sk);
}
static struct inet_connection_sock_af_ops ipv6_specific = {
- .queue_xmit = inet6_csk_xmit,
- .send_check = tcp_v6_send_check,
- .rebuild_header = inet6_sk_rebuild_header,
- .conn_request = tcp_v6_conn_request,
- .syn_recv_sock = tcp_v6_syn_recv_sock,
- .remember_stamp = tcp_v6_remember_stamp,
- .net_header_len = sizeof(struct ipv6hdr),
- .setsockopt = ipv6_setsockopt,
- .getsockopt = ipv6_getsockopt,
- .addr2sockaddr = inet6_csk_addr2sockaddr,
- .sockaddr_len = sizeof(struct sockaddr_in6),
-#ifdef CONFIG_COMPAT
- .compat_setsockopt = compat_ipv6_setsockopt,
- .compat_getsockopt = compat_ipv6_getsockopt,
-#endif
+ .queue_xmit = inet6_csk_xmit,
+ .send_check = tcp_v6_send_check,
+ .rebuild_header = inet6_sk_rebuild_header,
+ .conn_request = tcp_v6_conn_request,
+ .syn_recv_sock = tcp_v6_syn_recv_sock,
+ .remember_stamp = tcp_v6_remember_stamp,
+ .net_header_len = sizeof(struct ipv6hdr),
+
+ .setsockopt = ipv6_setsockopt,
+ .getsockopt = ipv6_getsockopt,
+ .addr2sockaddr = inet6_csk_addr2sockaddr,
+ .sockaddr_len = sizeof(struct sockaddr_in6)
};
/*
*/
static struct inet_connection_sock_af_ops ipv6_mapped = {
- .queue_xmit = ip_queue_xmit,
- .send_check = tcp_v4_send_check,
- .rebuild_header = inet_sk_rebuild_header,
- .conn_request = tcp_v6_conn_request,
- .syn_recv_sock = tcp_v6_syn_recv_sock,
- .remember_stamp = tcp_v4_remember_stamp,
- .net_header_len = sizeof(struct iphdr),
- .setsockopt = ipv6_setsockopt,
- .getsockopt = ipv6_getsockopt,
- .addr2sockaddr = inet6_csk_addr2sockaddr,
- .sockaddr_len = sizeof(struct sockaddr_in6),
-#ifdef CONFIG_COMPAT
- .compat_setsockopt = compat_ipv6_setsockopt,
- .compat_getsockopt = compat_ipv6_getsockopt,
-#endif
+ .queue_xmit = ip_queue_xmit,
+ .send_check = tcp_v4_send_check,
+ .rebuild_header = inet_sk_rebuild_header,
+ .conn_request = tcp_v6_conn_request,
+ .syn_recv_sock = tcp_v6_syn_recv_sock,
+ .remember_stamp = tcp_v4_remember_stamp,
+ .net_header_len = sizeof(struct iphdr),
+
+ .setsockopt = ipv6_setsockopt,
+ .getsockopt = ipv6_getsockopt,
+ .addr2sockaddr = inet6_csk_addr2sockaddr,
+ .sockaddr_len = sizeof(struct sockaddr_in6)
};
+
+
/* NOTE: A lot of things set to zero explicitly by call to
* sk_alloc() so need not be done here.
*/
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], destp,
sp->sk_state,
- tp->write_seq-tp->snd_una,
- (sp->sk_state == TCP_LISTEN) ? sp->sk_ack_backlog : (tp->rcv_nxt - tp->copied_seq),
+ tp->write_seq-tp->snd_una, tp->rcv_nxt-tp->copied_seq,
timer_active,
jiffies_to_clock_t(timer_expires - jiffies),
icsk->icsk_retransmits,
.obj_size = sizeof(struct tcp6_sock),
.twsk_prot = &tcp6_timewait_sock_ops,
.rsk_prot = &tcp6_request_sock_ops,
-#ifdef CONFIG_COMPAT
- .compat_setsockopt = compat_tcp_setsockopt,
- .compat_getsockopt = compat_tcp_getsockopt,
-#endif
};
static struct inet6_protocol tcpv6_protocol = {
.handler = tcp_v6_rcv,
.err_handler = tcp_v6_err,
- .gso_send_check = tcp_v6_gso_send_check,
- .gso_segment = tcp_tso_segment,
.flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
};
void __init tcpv6_init(void)
{
+ int err;
+
/* register inet6 protocol */
if (inet6_add_protocol(&tcpv6_protocol, IPPROTO_TCP) < 0)
printk(KERN_ERR "tcpv6_init: Could not register protocol\n");
inet6_register_protosw(&tcpv6_protosw);
- if (inet_csk_ctl_sock_create(&tcp6_socket, PF_INET6, SOCK_RAW,
- IPPROTO_TCP) < 0)
+ err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_TCP, &tcp6_socket);
+ if (err < 0)
panic("Failed to create the TCPv6 control socket.\n");
+ tcp6_socket->sk->sk_allocation = GFP_ATOMIC;
+
+ /* Unhash it so that IP input processing does not even
+ * see it, we do not wish this socket to see incoming
+ * packets.
+ */
+ tcp6_socket->sk->sk_prot->unhash(tcp6_socket->sk);
}
git://git.onelab.eu / linux-2.6.git / blobdiff