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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 @@
struct tcp_info;
-struct ccid {
+struct ccid_operations {
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);
+ kmem_cache_t *ccid_hc_rx_slab;
+ __u32 ccid_hc_rx_obj_size;
+ kmem_cache_t *ccid_hc_tx_slab;
+ __u32 ccid_hc_tx_obj_size;
+ int (*ccid_hc_rx_init)(struct ccid *ccid, struct sock *sk);
+ int (*ccid_hc_tx_init)(struct ccid *ccid, 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,
@@ -39,9 +41,9 @@ struct ccid {
unsigned char option,
unsigned char len, u16 idx,
unsigned char* value);
- void (*ccid_hc_rx_insert_options)(struct sock *sk,
+ int (*ccid_hc_rx_insert_options)(struct sock *sk,
struct sk_buff *skb);
- void (*ccid_hc_tx_insert_options)(struct sock *sk,
+ int (*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);
@@ -67,75 +69,58 @@ struct ccid {
int __user *optlen);
};
-extern int ccid_register(struct ccid *ccid);
-extern int ccid_unregister(struct ccid *ccid);
+extern int ccid_register(struct ccid_operations *ccid_ops);
+extern int ccid_unregister(struct ccid_operations *ccid_ops);
-extern struct ccid *ccid_init(unsigned char id, struct sock *sk);
-extern void ccid_exit(struct ccid *ccid, struct sock *sk);
+struct ccid {
+ struct ccid_operations *ccid_ops;
+ char ccid_priv[0];
+};
-static inline void __ccid_get(struct ccid *ccid)
+static inline void *ccid_priv(const struct ccid *ccid)
{
- __module_get(ccid->ccid_owner);
+ return (void *)ccid->ccid_priv;
}
+extern struct ccid *ccid_new(unsigned char id, struct sock *sk, int rx,
+ gfp_t gfp);
+
+extern struct ccid *ccid_hc_rx_new(unsigned char id, struct sock *sk,
+ gfp_t gfp);
+extern struct ccid *ccid_hc_tx_new(unsigned char id, struct sock *sk,
+ gfp_t gfp);
+
+extern void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
+extern void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);
+
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);
+ if (ccid->ccid_ops->ccid_hc_tx_send_packet != NULL)
+ rc = ccid->ccid_ops->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 != NULL && 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 != NULL && ccid->ccid_hc_tx_exit != NULL &&
- dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
- ccid->ccid_hc_tx_exit(sk);
+ if (ccid->ccid_ops->ccid_hc_tx_packet_sent != NULL)
+ ccid->ccid_ops->ccid_hc_tx_packet_sent(sk, more, len);
}
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);
+ if (ccid->ccid_ops->ccid_hc_rx_packet_recv != NULL)
+ ccid->ccid_ops->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);
+ if (ccid->ccid_ops->ccid_hc_tx_packet_recv != NULL)
+ ccid->ccid_ops->ccid_hc_tx_packet_recv(sk, skb);
}
static 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,
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,
+ if (ccid->ccid_ops->ccid_hc_tx_parse_options != NULL)
+ rc = ccid->ccid_ops->ccid_hc_tx_parse_options(sk, option, len, idx,
value);
return rc;
}
@@ -156,37 +141,39 @@ static inline int ccid_hc_rx_parse_options(struct ccid *ccid, struct sock *sk,
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);
+ if (ccid->ccid_ops->ccid_hc_rx_parse_options != NULL)
+ rc = ccid->ccid_ops->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)
+static inline int 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);
+ if (ccid->ccid_ops->ccid_hc_tx_insert_options != NULL)
+ return ccid->ccid_ops->ccid_hc_tx_insert_options(sk, skb);
+ return 0;
}
-static inline void ccid_hc_rx_insert_options(struct ccid *ccid, struct sock *sk,
- struct sk_buff *skb)
+static inline int 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);
+ if (ccid->ccid_ops->ccid_hc_rx_insert_options != NULL)
+ return ccid->ccid_ops->ccid_hc_rx_insert_options(sk, skb);
+ return 0;
}
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);
+ if (ccid->ccid_ops->ccid_hc_rx_get_info != NULL)
+ ccid->ccid_ops->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);
+ if (ccid->ccid_ops->ccid_hc_tx_get_info != NULL)
+ ccid->ccid_ops->ccid_hc_tx_get_info(sk, info);
}
static 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,
u32 __user *optval, int __user *optlen)
{
int rc = -ENOPROTOOPT;
- if (ccid->ccid_hc_rx_getsockopt != NULL)
- rc = ccid->ccid_hc_rx_getsockopt(sk, optname, len,
+ if (ccid->ccid_ops->ccid_hc_rx_getsockopt != NULL)
+ rc = ccid->ccid_ops->ccid_hc_rx_getsockopt(sk, optname, len,
optval, optlen);
return rc;
}
@@ -205,8 +192,8 @@ static inline int ccid_hc_tx_getsockopt(struct ccid *ccid, struct sock *sk,
u32 __user *optval, int __user *optlen)
{
int rc = -ENOPROTOOPT;
- if (ccid->ccid_hc_tx_getsockopt != NULL)
- rc = ccid->ccid_hc_tx_getsockopt(sk, optname, len,
+ if (ccid->ccid_ops->ccid_hc_tx_getsockopt != NULL)
+ rc = ccid->ccid_ops->ccid_hc_tx_getsockopt(sk, optname, len,
optval, optlen);
return rc;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-26 16:18:41 +0300