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Diffstat (limited to 'net/dccp/ccid.h')
-rw-r--r--net/dccp/ccid.h129
1 files changed, 58 insertions, 71 deletions
diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index de681c6ad081..f7eb6c613414 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -23,14 +23,16 @@
23 23
24struct tcp_info; 24struct tcp_info;
25 25
26struct ccid { 26struct ccid_operations {
27 unsigned char ccid_id; 27 unsigned char ccid_id;
28 const char *ccid_name; 28 const char *ccid_name;
29 struct module *ccid_owner; 29 struct module *ccid_owner;
30 int (*ccid_init)(struct sock *sk); 30 kmem_cache_t *ccid_hc_rx_slab;
31 void (*ccid_exit)(struct sock *sk); 31 __u32 ccid_hc_rx_obj_size;
32 int (*ccid_hc_rx_init)(struct sock *sk); 32 kmem_cache_t *ccid_hc_tx_slab;
33 int (*ccid_hc_tx_init)(struct sock *sk); 33 __u32 ccid_hc_tx_obj_size;
34 int (*ccid_hc_rx_init)(struct ccid *ccid, struct sock *sk);
35 int (*ccid_hc_tx_init)(struct ccid *ccid, struct sock *sk);
34 void (*ccid_hc_rx_exit)(struct sock *sk); 36 void (*ccid_hc_rx_exit)(struct sock *sk);
35 void (*ccid_hc_tx_exit)(struct sock *sk); 37 void (*ccid_hc_tx_exit)(struct sock *sk);
36 void (*ccid_hc_rx_packet_recv)(struct sock *sk, 38 void (*ccid_hc_rx_packet_recv)(struct sock *sk,
@@ -39,9 +41,9 @@ struct ccid {
39 unsigned char option, 41 unsigned char option,
40 unsigned char len, u16 idx, 42 unsigned char len, u16 idx,
41 unsigned char* value); 43 unsigned char* value);
42 void (*ccid_hc_rx_insert_options)(struct sock *sk, 44 int (*ccid_hc_rx_insert_options)(struct sock *sk,
43 struct sk_buff *skb); 45 struct sk_buff *skb);
44 void (*ccid_hc_tx_insert_options)(struct sock *sk, 46 int (*ccid_hc_tx_insert_options)(struct sock *sk,
45 struct sk_buff *skb); 47 struct sk_buff *skb);
46 void (*ccid_hc_tx_packet_recv)(struct sock *sk, 48 void (*ccid_hc_tx_packet_recv)(struct sock *sk,
47 struct sk_buff *skb); 49 struct sk_buff *skb);
@@ -67,75 +69,58 @@ struct ccid {
67 int __user *optlen); 69 int __user *optlen);
68}; 70};
69 71
70extern int ccid_register(struct ccid *ccid); 72extern int ccid_register(struct ccid_operations *ccid_ops);
71extern int ccid_unregister(struct ccid *ccid); 73extern int ccid_unregister(struct ccid_operations *ccid_ops);
72 74
73extern struct ccid *ccid_init(unsigned char id, struct sock *sk); 75struct ccid {
74extern void ccid_exit(struct ccid *ccid, struct sock *sk); 76 struct ccid_operations *ccid_ops;
77 char ccid_priv[0];
78};
75 79
76static inline void __ccid_get(struct ccid *ccid) 80static inline void *ccid_priv(const struct ccid *ccid)
77{ 81{
78 __module_get(ccid->ccid_owner); 82 return (void *)ccid->ccid_priv;
79} 83}
80 84
85extern struct ccid *ccid_new(unsigned char id, struct sock *sk, int rx,
86 gfp_t gfp);
87
88extern struct ccid *ccid_hc_rx_new(unsigned char id, struct sock *sk,
89 gfp_t gfp);
90extern struct ccid *ccid_hc_tx_new(unsigned char id, struct sock *sk,
91 gfp_t gfp);
92
93extern void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
94extern void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);
95
81static inline int ccid_hc_tx_send_packet(struct ccid *ccid, struct sock *sk, 96static inline int ccid_hc_tx_send_packet(struct ccid *ccid, struct sock *sk,
82 struct sk_buff *skb, int len) 97 struct sk_buff *skb, int len)
83{ 98{
84 int rc = 0; 99 int rc = 0;
85 if (ccid->ccid_hc_tx_send_packet != NULL) 100 if (ccid->ccid_ops->ccid_hc_tx_send_packet != NULL)
86 rc = ccid->ccid_hc_tx_send_packet(sk, skb, len); 101 rc = ccid->ccid_ops->ccid_hc_tx_send_packet(sk, skb, len);
87 return rc; 102 return rc;
88} 103}
89 104
90static inline void ccid_hc_tx_packet_sent(struct ccid *ccid, struct sock *sk, 105static inline void ccid_hc_tx_packet_sent(struct ccid *ccid, struct sock *sk,
91 int more, int len) 106 int more, int len)
92{ 107{
93 if (ccid->ccid_hc_tx_packet_sent != NULL) 108 if (ccid->ccid_ops->ccid_hc_tx_packet_sent != NULL)
94 ccid->ccid_hc_tx_packet_sent(sk, more, len); 109 ccid->ccid_ops->ccid_hc_tx_packet_sent(sk, more, len);
95}
96
97static inline int ccid_hc_rx_init(struct ccid *ccid, struct sock *sk)
98{
99 int rc = 0;
100 if (ccid->ccid_hc_rx_init != NULL)
101 rc = ccid->ccid_hc_rx_init(sk);
102 return rc;
103}
104
105static inline int ccid_hc_tx_init(struct ccid *ccid, struct sock *sk)
106{
107 int rc = 0;
108 if (ccid->ccid_hc_tx_init != NULL)
109 rc = ccid->ccid_hc_tx_init(sk);
110 return rc;
111}
112
113static inline void ccid_hc_rx_exit(struct ccid *ccid, struct sock *sk)
114{
115 if (ccid != NULL && ccid->ccid_hc_rx_exit != NULL &&
116 dccp_sk(sk)->dccps_hc_rx_ccid_private != NULL)
117 ccid->ccid_hc_rx_exit(sk);
118}
119
120static inline void ccid_hc_tx_exit(struct ccid *ccid, struct sock *sk)
121{
122 if (ccid != NULL && ccid->ccid_hc_tx_exit != NULL &&
123 dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
124 ccid->ccid_hc_tx_exit(sk);
125} 110}
126 111
127static inline void ccid_hc_rx_packet_recv(struct ccid *ccid, struct sock *sk, 112static inline void ccid_hc_rx_packet_recv(struct ccid *ccid, struct sock *sk,
128 struct sk_buff *skb) 113 struct sk_buff *skb)
129{ 114{
130 if (ccid->ccid_hc_rx_packet_recv != NULL) 115 if (ccid->ccid_ops->ccid_hc_rx_packet_recv != NULL)
131 ccid->ccid_hc_rx_packet_recv(sk, skb); 116 ccid->ccid_ops->ccid_hc_rx_packet_recv(sk, skb);
132} 117}
133 118
134static inline void ccid_hc_tx_packet_recv(struct ccid *ccid, struct sock *sk, 119static inline void ccid_hc_tx_packet_recv(struct ccid *ccid, struct sock *sk,
135 struct sk_buff *skb) 120 struct sk_buff *skb)
136{ 121{
137 if (ccid->ccid_hc_tx_packet_recv != NULL) 122 if (ccid->ccid_ops->ccid_hc_tx_packet_recv != NULL)
138 ccid->ccid_hc_tx_packet_recv(sk, skb); 123 ccid->ccid_ops->ccid_hc_tx_packet_recv(sk, skb);
139} 124}
140 125
141static inline int ccid_hc_tx_parse_options(struct ccid *ccid, struct sock *sk, 126static inline int ccid_hc_tx_parse_options(struct ccid *ccid, struct sock *sk,
@@ -144,8 +129,8 @@ static inline int ccid_hc_tx_parse_options(struct ccid *ccid, struct sock *sk,
144 unsigned char* value) 129 unsigned char* value)
145{ 130{
146 int rc = 0; 131 int rc = 0;
147 if (ccid->ccid_hc_tx_parse_options != NULL) 132 if (ccid->ccid_ops->ccid_hc_tx_parse_options != NULL)
148 rc = ccid->ccid_hc_tx_parse_options(sk, option, len, idx, 133 rc = ccid->ccid_ops->ccid_hc_tx_parse_options(sk, option, len, idx,
149 value); 134 value);
150 return rc; 135 return rc;
151} 136}
@@ -156,37 +141,39 @@ static inline int ccid_hc_rx_parse_options(struct ccid *ccid, struct sock *sk,
156 unsigned char* value) 141 unsigned char* value)
157{ 142{
158 int rc = 0; 143 int rc = 0;
159 if (ccid->ccid_hc_rx_parse_options != NULL) 144 if (ccid->ccid_ops->ccid_hc_rx_parse_options != NULL)
160 rc = ccid->ccid_hc_rx_parse_options(sk, option, len, idx, value); 145 rc = ccid->ccid_ops->ccid_hc_rx_parse_options(sk, option, len, idx, value);
161 return rc; 146 return rc;
162} 147}
163 148
164static inline void ccid_hc_tx_insert_options(struct ccid *ccid, struct sock *sk, 149static inline int ccid_hc_tx_insert_options(struct ccid *ccid, struct sock *sk,
165 struct sk_buff *skb) 150 struct sk_buff *skb)
166{ 151{
167 if (ccid->ccid_hc_tx_insert_options != NULL) 152 if (ccid->ccid_ops->ccid_hc_tx_insert_options != NULL)
168 ccid->ccid_hc_tx_insert_options(sk, skb); 153 return ccid->ccid_ops->ccid_hc_tx_insert_options(sk, skb);
154 return 0;
169} 155}
170 156
171static inline void ccid_hc_rx_insert_options(struct ccid *ccid, struct sock *sk, 157static inline int ccid_hc_rx_insert_options(struct ccid *ccid, struct sock *sk,
172 struct sk_buff *skb) 158 struct sk_buff *skb)
173{ 159{
174 if (ccid->ccid_hc_rx_insert_options != NULL) 160 if (ccid->ccid_ops->ccid_hc_rx_insert_options != NULL)
175 ccid->ccid_hc_rx_insert_options(sk, skb); 161 return ccid->ccid_ops->ccid_hc_rx_insert_options(sk, skb);
162 return 0;
176} 163}
177 164
178static inline void ccid_hc_rx_get_info(struct ccid *ccid, struct sock *sk, 165static inline void ccid_hc_rx_get_info(struct ccid *ccid, struct sock *sk,
179 struct tcp_info *info) 166 struct tcp_info *info)
180{ 167{
181 if (ccid->ccid_hc_rx_get_info != NULL) 168 if (ccid->ccid_ops->ccid_hc_rx_get_info != NULL)
182 ccid->ccid_hc_rx_get_info(sk, info); 169 ccid->ccid_ops->ccid_hc_rx_get_info(sk, info);
183} 170}
184 171
185static inline void ccid_hc_tx_get_info(struct ccid *ccid, struct sock *sk, 172static inline void ccid_hc_tx_get_info(struct ccid *ccid, struct sock *sk,
186 struct tcp_info *info) 173 struct tcp_info *info)
187{ 174{
188 if (ccid->ccid_hc_tx_get_info != NULL) 175 if (ccid->ccid_ops->ccid_hc_tx_get_info != NULL)
189 ccid->ccid_hc_tx_get_info(sk, info); 176 ccid->ccid_ops->ccid_hc_tx_get_info(sk, info);
190} 177}
191 178
192static inline int ccid_hc_rx_getsockopt(struct ccid *ccid, struct sock *sk, 179static inline int ccid_hc_rx_getsockopt(struct ccid *ccid, struct sock *sk,
@@ -194,8 +181,8 @@ static inline int ccid_hc_rx_getsockopt(struct ccid *ccid, struct sock *sk,
194 u32 __user *optval, int __user *optlen) 181 u32 __user *optval, int __user *optlen)
195{ 182{
196 int rc = -ENOPROTOOPT; 183 int rc = -ENOPROTOOPT;
197 if (ccid->ccid_hc_rx_getsockopt != NULL) 184 if (ccid->ccid_ops->ccid_hc_rx_getsockopt != NULL)
198 rc = ccid->ccid_hc_rx_getsockopt(sk, optname, len, 185 rc = ccid->ccid_ops->ccid_hc_rx_getsockopt(sk, optname, len,
199 optval, optlen); 186 optval, optlen);
200 return rc; 187 return rc;
201} 188}
@@ -205,8 +192,8 @@ static inline int ccid_hc_tx_getsockopt(struct ccid *ccid, struct sock *sk,
205 u32 __user *optval, int __user *optlen) 192 u32 __user *optval, int __user *optlen)
206{ 193{
207 int rc = -ENOPROTOOPT; 194 int rc = -ENOPROTOOPT;
208 if (ccid->ccid_hc_tx_getsockopt != NULL) 195 if (ccid->ccid_ops->ccid_hc_tx_getsockopt != NULL)
209 rc = ccid->ccid_hc_tx_getsockopt(sk, optname, len, 196 rc = ccid->ccid_ops->ccid_hc_tx_getsockopt(sk, optname, len,
210 optval, optlen); 197 optval, optlen);
211 return rc; 198 return rc;
212} 199}
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-22 21:37:03 -0400