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-rw-r--r--net/dccp/dccp.h4
-rw-r--r--net/dccp/ipv4.c106
-rw-r--r--net/dccp/ipv6.c4
-rw-r--r--net/dccp/proto.c102
4 files changed, 112 insertions, 104 deletions
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index cd7c5d0..8f3903b 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -228,8 +228,8 @@ extern int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
extern int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct dccp_hdr *dh, const unsigned len);
-extern int dccp_v4_init_sock(struct sock *sk);
-extern int dccp_v4_destroy_sock(struct sock *sk);
+extern int dccp_init_sock(struct sock *sk);
+extern int dccp_destroy_sock(struct sock *sk);
extern void dccp_close(struct sock *sk, long timeout);
extern struct sk_buff *dccp_make_response(struct sock *sk,
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 3baf4c7..b26a4f8 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -1008,109 +1008,15 @@ struct inet_connection_sock_af_ops dccp_ipv4_af_ops = {
.sockaddr_len = sizeof(struct sockaddr_in),
};
-int dccp_v4_init_sock(struct sock *sk)
+static int dccp_v4_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_af_ops = &dccp_ipv4_af_ops;
- 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_v4_init_sock);
+ const int err = dccp_init_sock(sk);
-int dccp_v4_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;
+ if (err == 0)
+ inet_csk(sk)->icsk_af_ops = &dccp_ipv4_af_ops;
+ return err;
}
-EXPORT_SYMBOL_GPL(dccp_v4_destroy_sock);
-
static void dccp_v4_reqsk_destructor(struct request_sock *req)
{
kfree(inet_rsk(req)->opt);
@@ -1147,7 +1053,7 @@ struct proto dccp_prot = {
.accept = inet_csk_accept,
.get_port = dccp_v4_get_port,
.shutdown = dccp_shutdown,
- .destroy = dccp_v4_destroy_sock,
+ .destroy = dccp_destroy_sock,
.orphan_count = &dccp_orphan_count,
.max_header = MAX_DCCP_HEADER,
.obj_size = sizeof(struct dccp_sock),
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index ad5a1c6..84651bc 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -1146,7 +1146,7 @@ static struct inet_connection_sock_af_ops dccp_ipv6_mapped = {
*/
static int dccp_v6_init_sock(struct sock *sk)
{
- int err = dccp_v4_init_sock(sk);
+ int err = dccp_init_sock(sk);
if (err == 0)
inet_csk(sk)->icsk_af_ops = &dccp_ipv6_af_ops;
@@ -1156,7 +1156,7 @@ static int dccp_v6_init_sock(struct sock *sk)
static int dccp_v6_destroy_sock(struct sock *sk)
{
- dccp_v4_destroy_sock(sk);
+ dccp_destroy_sock(sk);
return inet6_destroy_sock(sk);
}
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 @@ const char *dccp_state_name(const int state)
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);
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