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/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */

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* IEEE 802.2 User Interface SAPs for Linux, data structures and indicators.

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* This program can be redistributed or modified under the terms of the

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* GNU General Public License as published by the Free Software Foundation.

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* This program is distributed without any warranty or implied warranty

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* of merchantability or fitness for a particular purpose.

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* See the GNU General Public License for more details.

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#ifndef __LINUX_LLC_H

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#define __LINUX_LLC_H

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#include <linux/socket.h>

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#include <linux/if.h> /* For IFHWADDRLEN. */

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#define __LLC_SOCK_SIZE__ 16 /* sizeof(sockaddr_llc), word align. */

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struct sockaddr_llc {

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__kernel_sa_family_t sllc_family; /* AF_LLC */

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__kernel_sa_family_t sllc_arphrd; /* ARPHRD_ETHER */

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unsigned char sllc_test;

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unsigned char sllc_xid;

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unsigned char sllc_ua; /* UA data, only for SOCK_STREAM. */

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unsigned char sllc_sap;

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unsigned char sllc_mac[IFHWADDRLEN];

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unsigned char __pad[__LLC_SOCK_SIZE__ -

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sizeof(__kernel_sa_family_t) * 2 -

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sizeof(unsigned char) * 4 - IFHWADDRLEN];

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};

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/* sockopt definitions. */

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enum llc_sockopts {

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LLC_OPT_UNKNOWN = 0,

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LLC_OPT_RETRY, /* max retrans attempts. */

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LLC_OPT_SIZE, /* max PDU size (octets). */

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LLC_OPT_ACK_TMR_EXP, /* ack expire time (secs). */

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LLC_OPT_P_TMR_EXP, /* pf cycle expire time (secs). */

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LLC_OPT_REJ_TMR_EXP, /* rej sent expire time (secs). */

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LLC_OPT_BUSY_TMR_EXP, /* busy state expire time (secs). */

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LLC_OPT_TX_WIN, /* tx window size. */

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LLC_OPT_RX_WIN, /* rx window size. */

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LLC_OPT_PKTINFO, /* ancillary packet information. */

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LLC_OPT_MAX

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};

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#define LLC_OPT_MAX_RETRY 100

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#define LLC_OPT_MAX_SIZE 4196

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#define LLC_OPT_MAX_WIN 127

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#define LLC_OPT_MAX_ACK_TMR_EXP 60

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#define LLC_OPT_MAX_P_TMR_EXP 60

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#define LLC_OPT_MAX_REJ_TMR_EXP 60

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#define LLC_OPT_MAX_BUSY_TMR_EXP 60

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/* LLC SAP types. */

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#define LLC_SAP_NULL 0x00 /* NULL SAP. */

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#define LLC_SAP_LLC 0x02 /* LLC Sublayer Management. */

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#define LLC_SAP_SNA 0x04 /* SNA Path Control. */

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#define LLC_SAP_PNM 0x0E /* Proway Network Management. */

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#define LLC_SAP_IP 0x06 /* TCP/IP. */

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#define LLC_SAP_BSPAN 0x42 /* Bridge Spanning Tree Proto */

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#define LLC_SAP_MMS 0x4E /* Manufacturing Message Srv. */

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#define LLC_SAP_8208 0x7E /* ISO 8208 */

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#define LLC_SAP_3COM 0x80 /* 3COM. */

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#define LLC_SAP_PRO 0x8E /* Proway Active Station List */

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#define LLC_SAP_SNAP 0xAA /* SNAP. */

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#define LLC_SAP_BANYAN 0xBC /* Banyan. */

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#define LLC_SAP_IPX 0xE0 /* IPX/SPX. */

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#define LLC_SAP_NETBEUI 0xF0 /* NetBEUI. */

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#define LLC_SAP_LANMGR 0xF4 /* LanManager. */

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#define LLC_SAP_IMPL 0xF8 /* IMPL */

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#define LLC_SAP_DISC 0xFC /* Discovery */

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#define LLC_SAP_OSI 0xFE /* OSI Network Layers. */

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#define LLC_SAP_LAR 0xDC /* LAN Address Resolution */

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#define LLC_SAP_RM 0xD4 /* Resource Management */

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#define LLC_SAP_GLOBAL 0xFF /* Global SAP. */

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struct llc_pktinfo {

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int lpi_ifindex;

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unsigned char lpi_sap;

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unsigned char lpi_mac[IFHWADDRLEN];

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};

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#endif /* __LINUX_LLC_H */

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