blob: 594cdd9c423a4109dfa463c3cfca0f9a6c479c54 [file] [log] [blame]
/*
* sfe_cm.h
* Shortcut forwarding engine.
*
* Copyright (c) 2013-2015 Qualcomm Atheros, Inc.
*
* All Rights Reserved.
* Qualcomm Atheros Confidential and Proprietary.
*/
/*
* connection flags.
*/
#define SFE_CREATE_FLAG_NO_SEQ_CHECK 0x1
/* Indicates that we should not check sequence numbers */
/*
* IPv6 address structure
*/
struct sfe_ipv6_addr {
__be32 addr[4];
};
typedef union {
__be32 ip;
struct sfe_ipv6_addr ip6[1];
} sfe_ip_addr_t;
/*
* connection creation structure.
*/
struct sfe_connection_create {
int protocol;
struct net_device *src_dev;
struct net_device *dest_dev;
uint32_t flags;
uint32_t src_mtu;
uint32_t dest_mtu;
sfe_ip_addr_t src_ip;
sfe_ip_addr_t src_ip_xlate;
sfe_ip_addr_t dest_ip;
sfe_ip_addr_t dest_ip_xlate;
__be16 src_port;
__be16 src_port_xlate;
__be16 dest_port;
__be16 dest_port_xlate;
uint8_t src_mac[ETH_ALEN];
uint8_t src_mac_xlate[ETH_ALEN];
uint8_t dest_mac[ETH_ALEN];
uint8_t dest_mac_xlate[ETH_ALEN];
uint8_t src_td_window_scale;
uint32_t src_td_max_window;
uint32_t src_td_end;
uint32_t src_td_max_end;
uint8_t dest_td_window_scale;
uint32_t dest_td_max_window;
uint32_t dest_td_end;
uint32_t dest_td_max_end;
uint32_t mark;
};
/*
* connection destruction structure.
*/
struct sfe_connection_destroy {
int protocol;
sfe_ip_addr_t src_ip;
sfe_ip_addr_t dest_ip;
__be16 src_port;
__be16 dest_port;
};
/*
* Structure used to sync connection stats/state back within the system.
*
* NOTE: The addresses here are NON-NAT addresses, i.e. the true endpoint addressing.
* 'src' is the creator of the connection.
*/
struct sfe_connection_sync {
struct net_device *src_dev;
struct net_device *dest_dev;
int is_v6; /* Is it for ipv6? */
int protocol; /* IP protocol number (IPPROTO_...) */
sfe_ip_addr_t src_ip; /* Non-NAT source address, i.e. the creator of the connection */
__be16 src_port; /* Non-NAT source port */
sfe_ip_addr_t dest_ip; /* Non-NAT destination address, i.e. to whom the connection was created */
__be16 dest_port; /* Non-NAT destination port */
uint32_t src_td_max_window;
uint32_t src_td_end;
uint32_t src_td_max_end;
uint64_t src_packet_count;
uint64_t src_byte_count;
uint32_t src_new_packet_count;
uint32_t src_new_byte_count;
uint32_t dest_td_max_window;
uint32_t dest_td_end;
uint32_t dest_td_max_end;
uint64_t dest_packet_count;
uint64_t dest_byte_count;
uint32_t dest_new_packet_count;
uint32_t dest_new_byte_count;
uint64_t delta_jiffies; /* Time to be added to the current timeout to keep the connection alive */
};
/*
* connection mark structure
*/
struct sfe_connection_mark {
int protocol;
sfe_ip_addr_t src_ip;
sfe_ip_addr_t dest_ip;
__be16 src_port;
__be16 dest_port;
uint32_t mark;
};
/*
* Type used for a sync rule callback.
*/
typedef void (*sfe_sync_rule_callback_t)(struct sfe_connection_sync *);
/*
* IPv4 APIs used by connection manager
*/
extern int sfe_ipv4_recv(struct net_device *dev, struct sk_buff *skb);
extern int sfe_ipv4_create_rule(struct sfe_connection_create *sic);
extern void sfe_ipv4_destroy_rule(struct sfe_connection_destroy *sid);
extern void sfe_ipv4_destroy_all_rules_for_dev(struct net_device *dev);
extern void sfe_ipv4_register_sync_rule_callback(sfe_sync_rule_callback_t callback);
extern void sfe_ipv4_update_rule(struct sfe_connection_create *sic);
extern void sfe_ipv4_mark_rule(struct sfe_connection_mark *mark);
#ifdef SFE_SUPPORT_IPV6
/*
* IPv6 APIs used by connection manager
*/
extern int sfe_ipv6_recv(struct net_device *dev, struct sk_buff *skb);
extern int sfe_ipv6_create_rule(struct sfe_connection_create *sic);
extern void sfe_ipv6_destroy_rule(struct sfe_connection_destroy *sid);
extern void sfe_ipv6_destroy_all_rules_for_dev(struct net_device *dev);
extern void sfe_ipv6_register_sync_rule_callback(sfe_sync_rule_callback_t callback);
extern void sfe_ipv6_update_rule(struct sfe_connection_create *sic);
extern void sfe_ipv6_mark_rule(struct sfe_connection_mark *mark);
#else
static inline int sfe_ipv6_recv(struct net_device *dev, struct sk_buff *skb)
{
return 0;
}
static inline int sfe_ipv6_create_rule(struct sfe_connection_create *sic)
{
return -1;
}
static inline void sfe_ipv6_destroy_rule(struct sfe_connection_destroy *sid)
{
return;
}
static inline void sfe_ipv6_destroy_all_rules_for_dev(struct net_device *dev)
{
return;
}
static inline void sfe_ipv6_register_sync_rule_callback(sfe_sync_rule_callback_t callback)
{
return;
}
static inline void sfe_ipv6_update_rule(struct sfe_connection_create *sic)
{
return;
}
static inline void sfe_ipv6_mark_rule(struct sfe_connection_mark *mark)
{
return;
}
#endif