6 * An implementation of the DCCP protocol
7 * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
17 #include <linux/dccp.h>
18 #include <linux/list.h>
19 #include <linux/module.h>
24 unsigned char ccid_id;
25 const char *ccid_name;
26 struct module *ccid_owner;
27 int (*ccid_init)(struct sock *sk);
28 void (*ccid_exit)(struct sock *sk);
29 int (*ccid_hc_rx_init)(struct sock *sk);
30 int (*ccid_hc_tx_init)(struct sock *sk);
31 void (*ccid_hc_rx_exit)(struct sock *sk);
32 void (*ccid_hc_tx_exit)(struct sock *sk);
33 void (*ccid_hc_rx_packet_recv)(struct sock *sk,
35 int (*ccid_hc_rx_parse_options)(struct sock *sk,
37 unsigned char len, u16 idx,
38 unsigned char* value);
39 void (*ccid_hc_rx_insert_options)(struct sock *sk,
41 void (*ccid_hc_tx_insert_options)(struct sock *sk,
43 void (*ccid_hc_tx_packet_recv)(struct sock *sk,
45 int (*ccid_hc_tx_parse_options)(struct sock *sk,
47 unsigned char len, u16 idx,
48 unsigned char* value);
49 int (*ccid_hc_tx_send_packet)(struct sock *sk,
50 struct sk_buff *skb, int len);
51 void (*ccid_hc_tx_packet_sent)(struct sock *sk, int more,
53 void (*ccid_hc_rx_get_info)(struct sock *sk,
54 struct tcp_info *info);
55 void (*ccid_hc_tx_get_info)(struct sock *sk,
56 struct tcp_info *info);
59 extern int ccid_register(struct ccid *ccid);
60 extern int ccid_unregister(struct ccid *ccid);
62 extern struct ccid *ccid_init(unsigned char id, struct sock *sk);
63 extern void ccid_exit(struct ccid *ccid, struct sock *sk);
65 static inline void __ccid_get(struct ccid *ccid)
67 __module_get(ccid->ccid_owner);
70 static inline int ccid_hc_tx_send_packet(struct ccid *ccid, struct sock *sk,
71 struct sk_buff *skb, int len)
74 if (ccid->ccid_hc_tx_send_packet != NULL)
75 rc = ccid->ccid_hc_tx_send_packet(sk, skb, len);
79 static inline void ccid_hc_tx_packet_sent(struct ccid *ccid, struct sock *sk,
82 if (ccid->ccid_hc_tx_packet_sent != NULL)
83 ccid->ccid_hc_tx_packet_sent(sk, more, len);
86 static inline int ccid_hc_rx_init(struct ccid *ccid, struct sock *sk)
89 if (ccid->ccid_hc_rx_init != NULL)
90 rc = ccid->ccid_hc_rx_init(sk);
94 static inline int ccid_hc_tx_init(struct ccid *ccid, struct sock *sk)
97 if (ccid->ccid_hc_tx_init != NULL)
98 rc = ccid->ccid_hc_tx_init(sk);
102 static inline void ccid_hc_rx_exit(struct ccid *ccid, struct sock *sk)
104 if (ccid->ccid_hc_rx_exit != NULL &&
105 dccp_sk(sk)->dccps_hc_rx_ccid_private != NULL)
106 ccid->ccid_hc_rx_exit(sk);
109 static inline void ccid_hc_tx_exit(struct ccid *ccid, struct sock *sk)
111 if (ccid->ccid_hc_tx_exit != NULL &&
112 dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
113 ccid->ccid_hc_tx_exit(sk);
116 static inline void ccid_hc_rx_packet_recv(struct ccid *ccid, struct sock *sk,
119 if (ccid->ccid_hc_rx_packet_recv != NULL)
120 ccid->ccid_hc_rx_packet_recv(sk, skb);
123 static inline void ccid_hc_tx_packet_recv(struct ccid *ccid, struct sock *sk,
126 if (ccid->ccid_hc_tx_packet_recv != NULL)
127 ccid->ccid_hc_tx_packet_recv(sk, skb);
130 static inline int ccid_hc_tx_parse_options(struct ccid *ccid, struct sock *sk,
131 unsigned char option,
132 unsigned char len, u16 idx,
133 unsigned char* value)
136 if (ccid->ccid_hc_tx_parse_options != NULL)
137 rc = ccid->ccid_hc_tx_parse_options(sk, option, len, idx,
142 static inline int ccid_hc_rx_parse_options(struct ccid *ccid, struct sock *sk,
143 unsigned char option,
144 unsigned char len, u16 idx,
145 unsigned char* value)
148 if (ccid->ccid_hc_rx_parse_options != NULL)
149 rc = ccid->ccid_hc_rx_parse_options(sk, option, len, idx, value);
153 static inline void ccid_hc_tx_insert_options(struct ccid *ccid, struct sock *sk,
156 if (ccid->ccid_hc_tx_insert_options != NULL)
157 ccid->ccid_hc_tx_insert_options(sk, skb);
160 static inline void ccid_hc_rx_insert_options(struct ccid *ccid, struct sock *sk,
163 if (ccid->ccid_hc_rx_insert_options != NULL)
164 ccid->ccid_hc_rx_insert_options(sk, skb);
167 static inline void ccid_hc_rx_get_info(struct ccid *ccid, struct sock *sk,
168 struct tcp_info *info)
170 if (ccid->ccid_hc_rx_get_info != NULL)
171 ccid->ccid_hc_rx_get_info(sk, info);
174 static inline void ccid_hc_tx_get_info(struct ccid *ccid, struct sock *sk,
175 struct tcp_info *info)
177 if (ccid->ccid_hc_tx_get_info != NULL)
178 ccid->ccid_hc_tx_get_info(sk, info);