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gerrit.nordix.org / codeaurora / qca-nss-sfe / d44a5b43702fe9655f81e4d01593b5986de453e3 / . / shortcut-fe / sfe_cm.h
blob: 3765e7d358b524d272f724211600b7780851586e [file] [log] [blame]
Xiaoping Fand44a5b42015-05-26 17:37:37 -0700[diff] [blame^]1/*
2 * sfe_cm.h
3 * Shortcut forwarding engine.
4 *
5 * Copyright (c) 2013-2015 Qualcomm Atheros, Inc.
6 *
7 * All Rights Reserved.
8 * Qualcomm Atheros Confidential and Proprietary.
9 */
10
11/*
12 * connection flags.
13 */
14#define SFE_CREATE_FLAG_NO_SEQ_CHECK 0x1
15 /* Indicates that we should not check sequence numbers */
16
17/*
18 * IPv6 address structure
19 */
20struct sfe_ipv6_addr {
21 __be32 addr[4];
22};
23
24typedef union {
25 __be32 ip;
26 struct sfe_ipv6_addr ip6[1];
27} sfe_ip_addr_t;
28
29/*
30 * connection creation structure.
31 */
32struct sfe_connection_create {
33 int protocol;
34 struct net_device *src_dev;
35 struct net_device *dest_dev;
36 uint32_t flags;
37 uint32_t src_mtu;
38 uint32_t dest_mtu;
39 sfe_ip_addr_t src_ip;
40 sfe_ip_addr_t src_ip_xlate;
41 sfe_ip_addr_t dest_ip;
42 sfe_ip_addr_t dest_ip_xlate;
43 __be16 src_port;
44 __be16 src_port_xlate;
45 __be16 dest_port;
46 __be16 dest_port_xlate;
47 uint8_t src_mac[ETH_ALEN];
48 uint8_t src_mac_xlate[ETH_ALEN];
49 uint8_t dest_mac[ETH_ALEN];
50 uint8_t dest_mac_xlate[ETH_ALEN];
51 uint8_t src_td_window_scale;
52 uint32_t src_td_max_window;
53 uint32_t src_td_end;
54 uint32_t src_td_max_end;
55 uint8_t dest_td_window_scale;
56 uint32_t dest_td_max_window;
57 uint32_t dest_td_end;
58 uint32_t dest_td_max_end;
59 uint32_t mark;
60};
61
62/*
63 * connection destruction structure.
64 */
65struct sfe_connection_destroy {
66 int protocol;
67 sfe_ip_addr_t src_ip;
68 sfe_ip_addr_t dest_ip;
69 __be16 src_port;
70 __be16 dest_port;
71};
72
73/*
74 * Structure used to sync connection stats/state back within the system.
75 *
76 * NOTE: The addresses here are NON-NAT addresses, i.e. the true endpoint addressing.
77 * 'src' is the creator of the connection.
78 */
79struct sfe_connection_sync {
80 struct net_device *src_dev;
81 struct net_device *dest_dev;
82 int is_v6; /* Is it for ipv6? */
83 int protocol; /* IP protocol number (IPPROTO_...) */
84 sfe_ip_addr_t src_ip; /* Non-NAT source address, i.e. the creator of the connection */
85 __be16 src_port; /* Non-NAT source port */
86 sfe_ip_addr_t dest_ip; /* Non-NAT destination address, i.e. to whom the connection was created */
87 __be16 dest_port; /* Non-NAT destination port */
88 uint32_t src_td_max_window;
89 uint32_t src_td_end;
90 uint32_t src_td_max_end;
91 uint64_t src_packet_count;
92 uint64_t src_byte_count;
93 uint32_t src_new_packet_count;
94 uint32_t src_new_byte_count;
95 uint32_t dest_td_max_window;
96 uint32_t dest_td_end;
97 uint32_t dest_td_max_end;
98 uint64_t dest_packet_count;
99 uint64_t dest_byte_count;
100 uint32_t dest_new_packet_count;
101 uint32_t dest_new_byte_count;
102 uint64_t delta_jiffies; /* Time to be added to the current timeout to keep the connection alive */
103};
104
105/*
106 * connection mark structure
107 */
108struct sfe_connection_mark {
109 int protocol;
110 sfe_ip_addr_t src_ip;
111 sfe_ip_addr_t dest_ip;
112 __be16 src_port;
113 __be16 dest_port;
114 uint32_t mark;
115};
116
117/*
118 * Type used for a sync rule callback.
119 */
120typedef void (*sfe_sync_rule_callback_t)(struct sfe_connection_sync *);
121
122/*
123 * IPv4 APIs used by connection manager
124 */
125extern int sfe_ipv4_recv(struct net_device *dev, struct sk_buff *skb);
126extern int sfe_ipv4_create_rule(struct sfe_connection_create *sic);
127extern void sfe_ipv4_destroy_rule(struct sfe_connection_destroy *sid);
128extern void sfe_ipv4_destroy_all_rules_for_dev(struct net_device *dev);
129extern void sfe_ipv4_register_sync_rule_callback(sfe_sync_rule_callback_t callback);
130extern void sfe_ipv4_update_rule(struct sfe_connection_create *sic);
131extern void sfe_ipv4_mark_rule(struct sfe_connection_mark *mark);