* 2 of the License, or (at your option) any later version.
*/
-#include <linux/config.h>
#include <linux/dccp.h>
#include <linux/icmp.h>
#include <linux/module.h>
} /* else let the usual retransmit timer handle it */
}
-static void dccp_v4_ctl_send_ack(struct sk_buff *rxskb)
+static void dccp_v4_reqsk_send_ack(struct sk_buff *rxskb,
+ struct request_sock *req)
{
int err;
struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh;
- const int dccp_hdr_ack_len = sizeof(struct dccp_hdr) +
+ const u32 dccp_hdr_ack_len = sizeof(struct dccp_hdr) +
sizeof(struct dccp_hdr_ext) +
sizeof(struct dccp_hdr_ack_bits);
struct sk_buff *skb;
if (((struct rtable *)rxskb->dst)->rt_type != RTN_LOCAL)
return;
- skb = alloc_skb(MAX_DCCP_HEADER + 15, GFP_ATOMIC);
+ skb = alloc_skb(dccp_v4_ctl_socket->sk->sk_prot->max_header, GFP_ATOMIC);
if (skb == NULL)
return;
/* Reserve space for headers. */
- skb_reserve(skb, MAX_DCCP_HEADER);
+ skb_reserve(skb, dccp_v4_ctl_socket->sk->sk_prot->max_header);
skb->dst = dst_clone(rxskb->dst);
}
}
-static void dccp_v4_reqsk_send_ack(struct sk_buff *skb,
- struct request_sock *req)
-{
- dccp_v4_ctl_send_ack(skb);
-}
-
static int dccp_v4_send_response(struct sock *sk, struct request_sock *req,
struct dst_entry *dst)
{
goto drop;
if (dccp_parse_options(sk, skb))
- goto drop;
+ goto drop_and_free;
dccp_openreq_init(req, &dp, skb);
ireq = inet_rsk(req);
ireq->loc_addr = daddr;
ireq->rmt_addr = saddr;
- req->rcv_wnd = 100; /* Fake, option parsing will get the
- right value */
+ req->rcv_wnd = dccp_feat_default_sequence_window;
ireq->opt = NULL;
/*
if (dst == NULL)
return;
- skb = alloc_skb(MAX_DCCP_HEADER + 15, GFP_ATOMIC);
+ skb = alloc_skb(dccp_v4_ctl_socket->sk->sk_prot->max_header,
+ GFP_ATOMIC);
if (skb == NULL)
goto out;
/* Reserve space for headers. */
- skb_reserve(skb, MAX_DCCP_HEADER);
+ skb_reserve(skb, dccp_v4_ctl_socket->sk->sk_prot->max_header);
skb->dst = dst_clone(dst);
skb->h.raw = skb_push(skb, dccp_hdr_reset_len);
}
static struct inet_connection_sock_af_ops dccp_ipv4_af_ops = {
- .queue_xmit = ip_queue_xmit,
- .send_check = dccp_v4_send_check,
- .rebuild_header = inet_sk_rebuild_header,
- .conn_request = dccp_v4_conn_request,
- .syn_recv_sock = dccp_v4_request_recv_sock,
- .net_header_len = sizeof(struct iphdr),
- .setsockopt = ip_setsockopt,
- .getsockopt = ip_getsockopt,
- .addr2sockaddr = inet_csk_addr2sockaddr,
- .sockaddr_len = sizeof(struct sockaddr_in),
+ .queue_xmit = ip_queue_xmit,
+ .send_check = dccp_v4_send_check,
+ .rebuild_header = inet_sk_rebuild_header,
+ .conn_request = dccp_v4_conn_request,
+ .syn_recv_sock = dccp_v4_request_recv_sock,
+ .net_header_len = sizeof(struct iphdr),
+ .setsockopt = ip_setsockopt,
+ .getsockopt = ip_getsockopt,
+ .addr2sockaddr = inet_csk_addr2sockaddr,
+ .sockaddr_len = sizeof(struct sockaddr_in),
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_ip_setsockopt,
+ .compat_getsockopt = compat_ip_getsockopt,
+#endif
};
static int dccp_v4_init_sock(struct sock *sk)
.obj_size = sizeof(struct dccp_sock),
.rsk_prot = &dccp_request_sock_ops,
.twsk_prot = &dccp_timewait_sock_ops,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_dccp_setsockopt,
+ .compat_getsockopt = compat_dccp_getsockopt,
+#endif
};
static struct net_protocol dccp_v4_protocol = {
};
static const struct proto_ops inet_dccp_ops = {
- .family = PF_INET,
- .owner = THIS_MODULE,
- .release = inet_release,
- .bind = inet_bind,
- .connect = inet_stream_connect,
- .socketpair = sock_no_socketpair,
- .accept = inet_accept,
- .getname = inet_getname,
+ .family = PF_INET,
+ .owner = THIS_MODULE,
+ .release = inet_release,
+ .bind = inet_bind,
+ .connect = inet_stream_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = inet_accept,
+ .getname = inet_getname,
/* FIXME: work on tcp_poll to rename it to inet_csk_poll */
- .poll = dccp_poll,
- .ioctl = inet_ioctl,
+ .poll = dccp_poll,
+ .ioctl = inet_ioctl,
/* FIXME: work on inet_listen to rename it to sock_common_listen */
- .listen = inet_dccp_listen,
- .shutdown = inet_shutdown,
- .setsockopt = sock_common_setsockopt,
- .getsockopt = sock_common_getsockopt,
- .sendmsg = inet_sendmsg,
- .recvmsg = sock_common_recvmsg,
- .mmap = sock_no_mmap,
- .sendpage = sock_no_sendpage,
+ .listen = inet_dccp_listen,
+ .shutdown = inet_shutdown,
+ .setsockopt = sock_common_setsockopt,
+ .getsockopt = sock_common_getsockopt,
+ .sendmsg = inet_sendmsg,
+ .recvmsg = sock_common_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_sock_common_setsockopt,
+ .compat_getsockopt = compat_sock_common_getsockopt,
+#endif
};
static struct inet_protosw dccp_v4_protosw = {
.flags = INET_PROTOSW_ICSK,
};
-static char dccp_v4_ctl_socket_err_msg[] __initdata =
- KERN_ERR "DCCP: Failed to create the control socket.\n";
-
-static int __init dccp_v4_ctl_sock_init(void)
-{
- int rc = sock_create_kern(PF_INET, SOCK_DCCP, IPPROTO_DCCP,
- &dccp_v4_ctl_socket);
- if (rc < 0)
- printk(dccp_v4_ctl_socket_err_msg);
- else {
- dccp_v4_ctl_socket->sk->sk_allocation = GFP_ATOMIC;
- inet_sk(dccp_v4_ctl_socket->sk)->uc_ttl = -1;
-
- /* Unhash it so that IP input processing does not even
- * see it, we do not wish this socket to see incoming
- * packets.
- */
- dccp_v4_ctl_socket->sk->sk_prot->unhash(dccp_v4_ctl_socket->sk);
- }
-
- return rc;
-}
-
static int __init dccp_v4_init(void)
{
int err = proto_register(&dccp_v4_prot, 1);
inet_register_protosw(&dccp_v4_protosw);
- err = dccp_v4_ctl_sock_init();
+ err = inet_csk_ctl_sock_create(&dccp_v4_ctl_socket, PF_INET,
+ SOCK_DCCP, IPPROTO_DCCP);
if (err)
goto out_unregister_protosw;
out: