1*6f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2607ca46eSDavid Howells /* atmsap.h - ATM Service Access Point addressing definitions */
3607ca46eSDavid Howells
4607ca46eSDavid Howells /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
5607ca46eSDavid Howells
6607ca46eSDavid Howells
7607ca46eSDavid Howells #ifndef _LINUX_ATMSAP_H
8607ca46eSDavid Howells #define _LINUX_ATMSAP_H
9607ca46eSDavid Howells
10607ca46eSDavid Howells #include <linux/atmapi.h>
11607ca46eSDavid Howells
12607ca46eSDavid Howells /*
13607ca46eSDavid Howells * BEGIN_xx and END_xx markers are used for automatic generation of
14607ca46eSDavid Howells * documentation. Do not change them.
15607ca46eSDavid Howells */
16607ca46eSDavid Howells
17607ca46eSDavid Howells
18607ca46eSDavid Howells /*
19607ca46eSDavid Howells * Layer 2 protocol identifiers
20607ca46eSDavid Howells */
21607ca46eSDavid Howells
22607ca46eSDavid Howells /* BEGIN_L2 */
23607ca46eSDavid Howells #define ATM_L2_NONE 0 /* L2 not specified */
24607ca46eSDavid Howells #define ATM_L2_ISO1745 0x01 /* Basic mode ISO 1745 */
25607ca46eSDavid Howells #define ATM_L2_Q291 0x02 /* ITU-T Q.291 (Rec. I.441) */
26607ca46eSDavid Howells #define ATM_L2_X25_LL 0x06 /* ITU-T X.25, link layer */
27607ca46eSDavid Howells #define ATM_L2_X25_ML 0x07 /* ITU-T X.25, multilink */
28607ca46eSDavid Howells #define ATM_L2_LAPB 0x08 /* Extended LAPB, half-duplex (Rec. T.71) */
29607ca46eSDavid Howells #define ATM_L2_HDLC_ARM 0x09 /* HDLC ARM (ISO/IEC 4335) */
30607ca46eSDavid Howells #define ATM_L2_HDLC_NRM 0x0a /* HDLC NRM (ISO/IEC 4335) */
31607ca46eSDavid Howells #define ATM_L2_HDLC_ABM 0x0b /* HDLC ABM (ISO/IEC 4335) */
32607ca46eSDavid Howells #define ATM_L2_ISO8802 0x0c /* LAN LLC (ISO/IEC 8802/2) */
33607ca46eSDavid Howells #define ATM_L2_X75 0x0d /* ITU-T X.75, SLP */
34607ca46eSDavid Howells #define ATM_L2_Q922 0x0e /* ITU-T Q.922 */
35607ca46eSDavid Howells #define ATM_L2_USER 0x10 /* user-specified */
36607ca46eSDavid Howells #define ATM_L2_ISO7776 0x11 /* ISO 7776 DTE-DTE */
37607ca46eSDavid Howells /* END_L2 */
38607ca46eSDavid Howells
39607ca46eSDavid Howells
40607ca46eSDavid Howells /*
41607ca46eSDavid Howells * Layer 3 protocol identifiers
42607ca46eSDavid Howells */
43607ca46eSDavid Howells
44607ca46eSDavid Howells /* BEGIN_L3 */
45607ca46eSDavid Howells #define ATM_L3_NONE 0 /* L3 not specified */
46607ca46eSDavid Howells #define ATM_L3_X25 0x06 /* ITU-T X.25, packet layer */
47607ca46eSDavid Howells #define ATM_L3_ISO8208 0x07 /* ISO/IEC 8208 */
48607ca46eSDavid Howells #define ATM_L3_X223 0x08 /* ITU-T X.223 | ISO/IEC 8878 */
49607ca46eSDavid Howells #define ATM_L3_ISO8473 0x09 /* ITU-T X.233 | ISO/IEC 8473 */
50607ca46eSDavid Howells #define ATM_L3_T70 0x0a /* ITU-T T.70 minimum network layer */
51607ca46eSDavid Howells #define ATM_L3_TR9577 0x0b /* ISO/IEC TR 9577 */
52607ca46eSDavid Howells #define ATM_L3_H310 0x0c /* ITU-T Recommendation H.310 */
53607ca46eSDavid Howells #define ATM_L3_H321 0x0d /* ITU-T Recommendation H.321 */
54607ca46eSDavid Howells #define ATM_L3_USER 0x10 /* user-specified */
55607ca46eSDavid Howells /* END_L3 */
56607ca46eSDavid Howells
57607ca46eSDavid Howells
58607ca46eSDavid Howells /*
59607ca46eSDavid Howells * High layer identifiers
60607ca46eSDavid Howells */
61607ca46eSDavid Howells
62607ca46eSDavid Howells /* BEGIN_HL */
63607ca46eSDavid Howells #define ATM_HL_NONE 0 /* HL not specified */
64607ca46eSDavid Howells #define ATM_HL_ISO 0x01 /* ISO */
65607ca46eSDavid Howells #define ATM_HL_USER 0x02 /* user-specific */
66607ca46eSDavid Howells #define ATM_HL_HLP 0x03 /* high layer profile - UNI 3.0 only */
67607ca46eSDavid Howells #define ATM_HL_VENDOR 0x04 /* vendor-specific application identifier */
68607ca46eSDavid Howells /* END_HL */
69607ca46eSDavid Howells
70607ca46eSDavid Howells
71607ca46eSDavid Howells /*
72607ca46eSDavid Howells * ITU-T coded mode of operation
73607ca46eSDavid Howells */
74607ca46eSDavid Howells
75607ca46eSDavid Howells /* BEGIN_IMD */
76607ca46eSDavid Howells #define ATM_IMD_NONE 0 /* mode not specified */
77607ca46eSDavid Howells #define ATM_IMD_NORMAL 1 /* normal mode of operation */
78607ca46eSDavid Howells #define ATM_IMD_EXTENDED 2 /* extended mode of operation */
79607ca46eSDavid Howells /* END_IMD */
80607ca46eSDavid Howells
81607ca46eSDavid Howells /*
82607ca46eSDavid Howells * H.310 code points
83607ca46eSDavid Howells */
84607ca46eSDavid Howells
85607ca46eSDavid Howells #define ATM_TT_NONE 0 /* terminal type not specified */
86607ca46eSDavid Howells #define ATM_TT_RX 1 /* receive only */
87607ca46eSDavid Howells #define ATM_TT_TX 2 /* send only */
88607ca46eSDavid Howells #define ATM_TT_RXTX 3 /* receive and send */
89607ca46eSDavid Howells
90607ca46eSDavid Howells #define ATM_MC_NONE 0 /* no multiplexing */
91607ca46eSDavid Howells #define ATM_MC_TS 1 /* transport stream (TS) */
92607ca46eSDavid Howells #define ATM_MC_TS_FEC 2 /* transport stream with forward error corr. */
93607ca46eSDavid Howells #define ATM_MC_PS 3 /* program stream (PS) */
94607ca46eSDavid Howells #define ATM_MC_PS_FEC 4 /* program stream with forward error corr. */
95607ca46eSDavid Howells #define ATM_MC_H221 5 /* ITU-T Rec. H.221 */
96607ca46eSDavid Howells
97607ca46eSDavid Howells /*
98607ca46eSDavid Howells * SAP structures
99607ca46eSDavid Howells */
100607ca46eSDavid Howells
101607ca46eSDavid Howells #define ATM_MAX_HLI 8 /* maximum high-layer information length */
102607ca46eSDavid Howells
103607ca46eSDavid Howells
104607ca46eSDavid Howells struct atm_blli {
105607ca46eSDavid Howells unsigned char l2_proto; /* layer 2 protocol */
106607ca46eSDavid Howells union {
107607ca46eSDavid Howells struct {
108607ca46eSDavid Howells unsigned char mode; /* mode of operation (ATM_IMD_xxx), 0 if */
109607ca46eSDavid Howells /* absent */
110607ca46eSDavid Howells unsigned char window; /* window size (k), 1-127 (0 to omit) */
111607ca46eSDavid Howells } itu; /* ITU-T encoding */
112607ca46eSDavid Howells unsigned char user; /* user-specified l2 information */
113607ca46eSDavid Howells } l2;
114607ca46eSDavid Howells unsigned char l3_proto; /* layer 3 protocol */
115607ca46eSDavid Howells union {
116607ca46eSDavid Howells struct {
117607ca46eSDavid Howells unsigned char mode; /* mode of operation (ATM_IMD_xxx), 0 if */
118607ca46eSDavid Howells /* absent */
119607ca46eSDavid Howells unsigned char def_size; /* default packet size (log2), 4-12 (0 to */
120607ca46eSDavid Howells /* omit) */
121607ca46eSDavid Howells unsigned char window;/* packet window size, 1-127 (0 to omit) */
122607ca46eSDavid Howells } itu; /* ITU-T encoding */
123607ca46eSDavid Howells unsigned char user; /* user specified l3 information */
124607ca46eSDavid Howells struct { /* if l3_proto = ATM_L3_H310 */
125607ca46eSDavid Howells unsigned char term_type; /* terminal type */
126607ca46eSDavid Howells unsigned char fw_mpx_cap; /* forward multiplexing capability */
127607ca46eSDavid Howells /* only if term_type != ATM_TT_NONE */
128607ca46eSDavid Howells unsigned char bw_mpx_cap; /* backward multiplexing capability */
129607ca46eSDavid Howells /* only if term_type != ATM_TT_NONE */
130607ca46eSDavid Howells } h310;
131607ca46eSDavid Howells struct { /* if l3_proto = ATM_L3_TR9577 */
132607ca46eSDavid Howells unsigned char ipi; /* initial protocol id */
133607ca46eSDavid Howells unsigned char snap[5];/* IEEE 802.1 SNAP identifier */
134607ca46eSDavid Howells /* (only if ipi == NLPID_IEEE802_1_SNAP) */
135607ca46eSDavid Howells } tr9577;
136607ca46eSDavid Howells } l3;
137607ca46eSDavid Howells } __ATM_API_ALIGN;
138607ca46eSDavid Howells
139607ca46eSDavid Howells
140607ca46eSDavid Howells struct atm_bhli {
141607ca46eSDavid Howells unsigned char hl_type; /* high layer information type */
142607ca46eSDavid Howells unsigned char hl_length; /* length (only if hl_type == ATM_HL_USER || */
143607ca46eSDavid Howells /* hl_type == ATM_HL_ISO) */
144607ca46eSDavid Howells unsigned char hl_info[ATM_MAX_HLI];/* high layer information */
145607ca46eSDavid Howells };
146607ca46eSDavid Howells
147607ca46eSDavid Howells
148607ca46eSDavid Howells #define ATM_MAX_BLLI 3 /* maximum number of BLLI elements */
149607ca46eSDavid Howells
150607ca46eSDavid Howells
151607ca46eSDavid Howells struct atm_sap {
152607ca46eSDavid Howells struct atm_bhli bhli; /* local SAP, high-layer information */
153607ca46eSDavid Howells struct atm_blli blli[ATM_MAX_BLLI] __ATM_API_ALIGN;
154607ca46eSDavid Howells /* local SAP, low-layer info */
155607ca46eSDavid Howells };
156607ca46eSDavid Howells
157607ca46eSDavid Howells
blli_in_use(struct atm_blli blli)158607ca46eSDavid Howells static __inline__ int blli_in_use(struct atm_blli blli)
159607ca46eSDavid Howells {
160607ca46eSDavid Howells return blli.l2_proto || blli.l3_proto;
161607ca46eSDavid Howells }
162607ca46eSDavid Howells
163607ca46eSDavid Howells #endif
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