[DCCP]: Move dccp_v4_{init,destroy}_sock to the core
Removing one more ipv6 uses ipv4 stuff case in dccp land.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 6403e93..1c32def 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -97,6 +97,108 @@
EXPORT_SYMBOL_GPL(dccp_state_name);
+int dccp_init_sock(struct sock *sk)
+{
+ struct dccp_sock *dp = dccp_sk(sk);
+ struct inet_connection_sock *icsk = inet_csk(sk);
+ static int dccp_ctl_socket_init = 1;
+
+ dccp_options_init(&dp->dccps_options);
+ do_gettimeofday(&dp->dccps_epoch);
+
+ /*
+ * FIXME: We're hardcoding the CCID, and doing this at this point makes
+ * the listening (master) sock get CCID control blocks, which is not
+ * necessary, but for now, to not mess with the test userspace apps,
+ * lets leave it here, later the real solution is to do this in a
+ * setsockopt(CCIDs-I-want/accept). -acme
+ */
+ if (likely(!dccp_ctl_socket_init)) {
+ int rc = dccp_feat_init(sk);
+
+ if (rc)
+ return rc;
+
+ if (dp->dccps_options.dccpo_send_ack_vector) {
+ dp->dccps_hc_rx_ackvec = dccp_ackvec_alloc(GFP_KERNEL);
+ if (dp->dccps_hc_rx_ackvec == NULL)
+ return -ENOMEM;
+ }
+ dp->dccps_hc_rx_ccid =
+ ccid_hc_rx_new(dp->dccps_options.dccpo_rx_ccid,
+ sk, GFP_KERNEL);
+ dp->dccps_hc_tx_ccid =
+ ccid_hc_tx_new(dp->dccps_options.dccpo_tx_ccid,
+ sk, GFP_KERNEL);
+ if (unlikely(dp->dccps_hc_rx_ccid == NULL ||
+ dp->dccps_hc_tx_ccid == NULL)) {
+ ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
+ ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
+ if (dp->dccps_options.dccpo_send_ack_vector) {
+ dccp_ackvec_free(dp->dccps_hc_rx_ackvec);
+ dp->dccps_hc_rx_ackvec = NULL;
+ }
+ dp->dccps_hc_rx_ccid = dp->dccps_hc_tx_ccid = NULL;
+ return -ENOMEM;
+ }
+ } else {
+ /* control socket doesn't need feat nego */
+ INIT_LIST_HEAD(&dp->dccps_options.dccpo_pending);
+ INIT_LIST_HEAD(&dp->dccps_options.dccpo_conf);
+ dccp_ctl_socket_init = 0;
+ }
+
+ dccp_init_xmit_timers(sk);
+ icsk->icsk_rto = DCCP_TIMEOUT_INIT;
+ sk->sk_state = DCCP_CLOSED;
+ sk->sk_write_space = dccp_write_space;
+ icsk->icsk_sync_mss = dccp_sync_mss;
+ dp->dccps_mss_cache = 536;
+ dp->dccps_role = DCCP_ROLE_UNDEFINED;
+ dp->dccps_service = DCCP_SERVICE_INVALID_VALUE;
+ dp->dccps_l_ack_ratio = dp->dccps_r_ack_ratio = 1;
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(dccp_init_sock);
+
+int dccp_destroy_sock(struct sock *sk)
+{
+ struct dccp_sock *dp = dccp_sk(sk);
+
+ /*
+ * DCCP doesn't use sk_write_queue, just sk_send_head
+ * for retransmissions
+ */
+ if (sk->sk_send_head != NULL) {
+ kfree_skb(sk->sk_send_head);
+ sk->sk_send_head = NULL;
+ }
+
+ /* Clean up a referenced DCCP bind bucket. */
+ if (inet_csk(sk)->icsk_bind_hash != NULL)
+ inet_put_port(&dccp_hashinfo, sk);
+
+ kfree(dp->dccps_service_list);
+ dp->dccps_service_list = NULL;
+
+ if (dp->dccps_options.dccpo_send_ack_vector) {
+ dccp_ackvec_free(dp->dccps_hc_rx_ackvec);
+ dp->dccps_hc_rx_ackvec = NULL;
+ }
+ ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk);
+ ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk);
+ dp->dccps_hc_rx_ccid = dp->dccps_hc_tx_ccid = NULL;
+
+ /* clean up feature negotiation state */
+ dccp_feat_clean(sk);
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(dccp_destroy_sock);
+
static inline int dccp_listen_start(struct sock *sk)
{
struct dccp_sock *dp = dccp_sk(sk);