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-rw-r--r--net/dccp/ccid.h180
1 files changed, 180 insertions, 0 deletions
diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
new file mode 100644
index 000000000000..962f1e9e2f7e
--- /dev/null
+++ b/net/dccp/ccid.h
@@ -0,0 +1,180 @@
+#ifndef _CCID_H
+#define _CCID_H
+/*
+ * net/dccp/ccid.h
+ *
+ * An implementation of the DCCP protocol
+ * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ * CCID infrastructure
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <net/sock.h>
+#include <linux/dccp.h>
+#include <linux/list.h>
+#include <linux/module.h>
+
+#define CCID_MAX 255
+
+struct ccid {
+ unsigned char ccid_id;
+ const char *ccid_name;
+ struct module *ccid_owner;
+ int (*ccid_init)(struct sock *sk);
+ void (*ccid_exit)(struct sock *sk);
+ int (*ccid_hc_rx_init)(struct sock *sk);
+ int (*ccid_hc_tx_init)(struct sock *sk);
+ void (*ccid_hc_rx_exit)(struct sock *sk);
+ void (*ccid_hc_tx_exit)(struct sock *sk);
+ void (*ccid_hc_rx_packet_recv)(struct sock *sk,
+ struct sk_buff *skb);
+ int (*ccid_hc_rx_parse_options)(struct sock *sk,
+ unsigned char option,
+ unsigned char len, u16 idx,
+ unsigned char* value);
+ void (*ccid_hc_rx_insert_options)(struct sock *sk,
+ struct sk_buff *skb);
+ void (*ccid_hc_tx_insert_options)(struct sock *sk,
+ struct sk_buff *skb);
+ void (*ccid_hc_tx_packet_recv)(struct sock *sk,
+ struct sk_buff *skb);
+ int (*ccid_hc_tx_parse_options)(struct sock *sk,
+ unsigned char option,
+ unsigned char len, u16 idx,
+ unsigned char* value);
+ int (*ccid_hc_tx_send_packet)(struct sock *sk,
+ struct sk_buff *skb, int len);
+ void (*ccid_hc_tx_packet_sent)(struct sock *sk, int more,
+ int len);
+ void (*ccid_hc_rx_get_info)(struct sock *sk,
+ struct tcp_info *info);
+ void (*ccid_hc_tx_get_info)(struct sock *sk,
+ struct tcp_info *info);
+};
+
+extern int ccid_register(struct ccid *ccid);
+extern int ccid_unregister(struct ccid *ccid);
+
+extern struct ccid *ccid_init(unsigned char id, struct sock *sk);
+extern void ccid_exit(struct ccid *ccid, struct sock *sk);
+
+static inline void __ccid_get(struct ccid *ccid)
+{
+ __module_get(ccid->ccid_owner);
+}
+
+static inline int ccid_hc_tx_send_packet(struct ccid *ccid, struct sock *sk,
+ struct sk_buff *skb, int len)
+{
+ int rc = 0;
+ if (ccid->ccid_hc_tx_send_packet != NULL)
+ rc = ccid->ccid_hc_tx_send_packet(sk, skb, len);
+ return rc;
+}
+
+static inline void ccid_hc_tx_packet_sent(struct ccid *ccid, struct sock *sk,
+ int more, int len)
+{
+ if (ccid->ccid_hc_tx_packet_sent != NULL)
+ ccid->ccid_hc_tx_packet_sent(sk, more, len);
+}
+
+static inline int ccid_hc_rx_init(struct ccid *ccid, struct sock *sk)
+{
+ int rc = 0;
+ if (ccid->ccid_hc_rx_init != NULL)
+ rc = ccid->ccid_hc_rx_init(sk);
+ return rc;
+}
+
+static inline int ccid_hc_tx_init(struct ccid *ccid, struct sock *sk)
+{
+ int rc = 0;
+ if (ccid->ccid_hc_tx_init != NULL)
+ rc = ccid->ccid_hc_tx_init(sk);
+ return rc;
+}
+
+static inline void ccid_hc_rx_exit(struct ccid *ccid, struct sock *sk)
+{
+ if (ccid->ccid_hc_rx_exit != NULL &&
+ dccp_sk(sk)->dccps_hc_rx_ccid_private != NULL)
+ ccid->ccid_hc_rx_exit(sk);
+}
+
+static inline void ccid_hc_tx_exit(struct ccid *ccid, struct sock *sk)
+{
+ if (ccid->ccid_hc_tx_exit != NULL &&
+ dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
+ ccid->ccid_hc_tx_exit(sk);
+}
+
+static inline void ccid_hc_rx_packet_recv(struct ccid *ccid, struct sock *sk,
+ struct sk_buff *skb)
+{
+ if (ccid->ccid_hc_rx_packet_recv != NULL)
+ ccid->ccid_hc_rx_packet_recv(sk, skb);
+}
+
+static inline void ccid_hc_tx_packet_recv(struct ccid *ccid, struct sock *sk,
+ struct sk_buff *skb)
+{
+ if (ccid->ccid_hc_tx_packet_recv != NULL)
+ ccid->ccid_hc_tx_packet_recv(sk, skb);
+}
+
+static inline int ccid_hc_tx_parse_options(struct ccid *ccid, struct sock *sk,
+ unsigned char option,
+ unsigned char len, u16 idx,
+ unsigned char* value)
+{
+ int rc = 0;
+ if (ccid->ccid_hc_tx_parse_options != NULL)
+ rc = ccid->ccid_hc_tx_parse_options(sk, option, len, idx,
+ value);
+ return rc;
+}
+
+static inline int ccid_hc_rx_parse_options(struct ccid *ccid, struct sock *sk,
+ unsigned char option,
+ unsigned char len, u16 idx,
+ unsigned char* value)
+{
+ int rc = 0;
+ if (ccid->ccid_hc_rx_parse_options != NULL)
+ rc = ccid->ccid_hc_rx_parse_options(sk, option, len, idx, value);
+ return rc;
+}
+
+static inline void ccid_hc_tx_insert_options(struct ccid *ccid, struct sock *sk,
+ struct sk_buff *skb)
+{
+ if (ccid->ccid_hc_tx_insert_options != NULL)
+ ccid->ccid_hc_tx_insert_options(sk, skb);
+}
+
+static inline void ccid_hc_rx_insert_options(struct ccid *ccid, struct sock *sk,
+ struct sk_buff *skb)
+{
+ if (ccid->ccid_hc_rx_insert_options != NULL)
+ ccid->ccid_hc_rx_insert_options(sk, skb);
+}
+
+static inline void ccid_hc_rx_get_info(struct ccid *ccid, struct sock *sk,
+ struct tcp_info *info)
+{
+ if (ccid->ccid_hc_rx_get_info != NULL)
+ ccid->ccid_hc_rx_get_info(sk, info);
+}
+
+static inline void ccid_hc_tx_get_info(struct ccid *ccid, struct sock *sk,
+ struct tcp_info *info)
+{
+ if (ccid->ccid_hc_tx_get_info != NULL)
+ ccid->ccid_hc_tx_get_info(sk, info);
+}
+#endif /* _CCID_H */