1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | #ifndef _ATMMPC_H_ |
3 | #define _ATMMPC_H_ |
4 | |
5 | #include <linux/atmapi.h> |
6 | #include <linux/atmioc.h> |
7 | #include <linux/atm.h> |
8 | #include <linux/types.h> |
9 | |
10 | #define ATMMPC_CTRL _IO('a', ATMIOC_MPOA) |
11 | #define ATMMPC_DATA _IO('a', ATMIOC_MPOA+1) |
12 | |
13 | #define MPC_SOCKET_INGRESS 1 |
14 | #define MPC_SOCKET_EGRESS 2 |
15 | |
16 | struct atmmpc_ioc { |
17 | int dev_num; |
18 | __be32 ipaddr; /* the IP address of the shortcut */ |
19 | int type; /* ingress or egress */ |
20 | }; |
21 | |
22 | typedef struct in_ctrl_info { |
23 | __u8 Last_NHRP_CIE_code; |
24 | __u8 Last_Q2931_cause_value; |
25 | __u8 eg_MPC_ATM_addr[ATM_ESA_LEN]; |
26 | __be32 tag; |
27 | __be32 in_dst_ip; /* IP address this ingress MPC sends packets to */ |
28 | __u16 holding_time; |
29 | __u32 request_id; |
30 | } in_ctrl_info; |
31 | |
32 | typedef struct eg_ctrl_info { |
33 | __u8 [256]; |
34 | __u8 DH_length; |
35 | __be32 cache_id; |
36 | __be32 tag; |
37 | __be32 mps_ip; |
38 | __be32 eg_dst_ip; /* IP address to which ingress MPC sends packets */ |
39 | __u8 in_MPC_data_ATM_addr[ATM_ESA_LEN]; |
40 | __u16 holding_time; |
41 | } eg_ctrl_info; |
42 | |
43 | struct mpc_parameters { |
44 | __u16 mpc_p1; /* Shortcut-Setup Frame Count */ |
45 | __u16 mpc_p2; /* Shortcut-Setup Frame Time */ |
46 | __u8 mpc_p3[8]; /* Flow-detection Protocols */ |
47 | __u16 mpc_p4; /* MPC Initial Retry Time */ |
48 | __u16 mpc_p5; /* MPC Retry Time Maximum */ |
49 | __u16 mpc_p6; /* Hold Down Time */ |
50 | } ; |
51 | |
52 | struct k_message { |
53 | __u16 type; |
54 | __be32 ip_mask; |
55 | __u8 MPS_ctrl[ATM_ESA_LEN]; |
56 | union { |
57 | in_ctrl_info in_info; |
58 | eg_ctrl_info eg_info; |
59 | struct mpc_parameters params; |
60 | } content; |
61 | struct atm_qos qos; |
62 | } __ATM_API_ALIGN; |
63 | |
64 | struct llc_snap_hdr { |
65 | /* RFC 1483 LLC/SNAP encapsulation for routed IP PDUs */ |
66 | __u8 dsap; /* Destination Service Access Point (0xAA) */ |
67 | __u8 ssap; /* Source Service Access Point (0xAA) */ |
68 | __u8 ui; /* Unnumbered Information (0x03) */ |
69 | __u8 org[3]; /* Organizational identification (0x000000) */ |
70 | __u8 type[2]; /* Ether type (for IP) (0x0800) */ |
71 | }; |
72 | |
73 | /* TLVs this MPC recognizes */ |
74 | #define TLV_MPOA_DEVICE_TYPE 0x00a03e2a |
75 | |
76 | /* MPOA device types in MPOA Device Type TLV */ |
77 | #define NON_MPOA 0 |
78 | #define MPS 1 |
79 | #define MPC 2 |
80 | #define MPS_AND_MPC 3 |
81 | |
82 | |
83 | /* MPC parameter defaults */ |
84 | |
85 | #define MPC_P1 10 /* Shortcut-Setup Frame Count */ |
86 | #define MPC_P2 1 /* Shortcut-Setup Frame Time */ |
87 | #define MPC_P3 0 /* Flow-detection Protocols */ |
88 | #define MPC_P4 5 /* MPC Initial Retry Time */ |
89 | #define MPC_P5 40 /* MPC Retry Time Maximum */ |
90 | #define MPC_P6 160 /* Hold Down Time */ |
91 | #define HOLDING_TIME_DEFAULT 1200 /* same as MPS-p7 */ |
92 | |
93 | /* MPC constants */ |
94 | |
95 | #define MPC_C1 2 /* Retry Time Multiplier */ |
96 | #define MPC_C2 60 /* Initial Keep-Alive Lifetime */ |
97 | |
98 | /* Message types - to MPOA daemon */ |
99 | |
100 | #define SND_MPOA_RES_RQST 201 |
101 | #define SET_MPS_CTRL_ADDR 202 |
102 | #define SND_MPOA_RES_RTRY 203 /* Different type in a retry due to req id */ |
103 | #define STOP_KEEP_ALIVE_SM 204 |
104 | #define EGRESS_ENTRY_REMOVED 205 |
105 | #define SND_EGRESS_PURGE 206 |
106 | #define DIE 207 /* tell the daemon to exit() */ |
107 | #define DATA_PLANE_PURGE 208 /* Data plane purge because of egress cache hit miss or dead MPS */ |
108 | #define OPEN_INGRESS_SVC 209 |
109 | |
110 | /* Message types - from MPOA daemon */ |
111 | |
112 | #define MPOA_TRIGGER_RCVD 101 |
113 | #define MPOA_RES_REPLY_RCVD 102 |
114 | #define INGRESS_PURGE_RCVD 103 |
115 | #define EGRESS_PURGE_RCVD 104 |
116 | #define MPS_DEATH 105 |
117 | #define CACHE_IMPOS_RCVD 106 |
118 | #define SET_MPC_CTRL_ADDR 107 /* Our MPC's control ATM address */ |
119 | #define SET_MPS_MAC_ADDR 108 |
120 | #define CLEAN_UP_AND_EXIT 109 |
121 | #define SET_MPC_PARAMS 110 /* MPC configuration parameters */ |
122 | |
123 | /* Message types - bidirectional */ |
124 | |
125 | #define RELOAD 301 /* kill -HUP the daemon for reload */ |
126 | |
127 | #endif /* _ATMMPC_H_ */ |
128 | |