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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note *//*************************************************************************** * Linux PPP over X - Generic PPP transport layer sockets * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516) * * This file supplies definitions required by the PPP over Ethernet driver * (pppox.c). All version information wrt this file is located in pppox.c * * License: * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * */
#ifndef _UAPI__LINUX_IF_PPPOX_H#define _UAPI__LINUX_IF_PPPOX_H
#include <linux/types.h>#include <asm/byteorder.h>
#include <linux/socket.h>#include <linux/if.h>#include <linux/if_ether.h>#include <linux/if_pppol2tp.h>#include <linux/in.h>#include <linux/in6.h>
/* For user-space programs to pick up these definitions * which they wouldn't get otherwise without defining __KERNEL__ */#ifndef AF_PPPOX#define AF_PPPOX 24#define PF_PPPOX AF_PPPOX#endif /* !(AF_PPPOX) */
/************************************************************************ * PPPoE addressing definition */ typedef __be16 sid_t;struct pppoe_addr { sid_t sid; /* Session identifier */ unsigned char remote[ETH_ALEN]; /* Remote address */ char dev[IFNAMSIZ]; /* Local device to use */}; /************************************************************************ * PPTP addressing definition */struct pptp_addr { __u16 call_id; struct in_addr sin_addr;};
/************************************************************************ * Protocols supported by AF_PPPOX */#define PX_PROTO_OE 0 /* Currently just PPPoE */#define PX_PROTO_OL2TP 1 /* Now L2TP also */#define PX_PROTO_PPTP 2#define PX_MAX_PROTO 3
struct sockaddr_pppox { __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */ unsigned int sa_protocol; /* protocol identifier */ union { struct pppoe_addr pppoe; struct pptp_addr pptp; } sa_addr;} __packed;
/* The use of the above union isn't viable because the size of this * struct must stay fixed over time -- applications use sizeof(struct * sockaddr_pppox) to fill it. We use a protocol specific sockaddr * type instead. */struct sockaddr_pppol2tp { __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */ unsigned int sa_protocol; /* protocol identifier */ struct pppol2tp_addr pppol2tp;} __packed;
struct sockaddr_pppol2tpin6 { __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */ unsigned int sa_protocol; /* protocol identifier */ struct pppol2tpin6_addr pppol2tp;} __packed;
/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32 * bits. So we need a different sockaddr structure. */struct sockaddr_pppol2tpv3 { __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */ unsigned int sa_protocol; /* protocol identifier */ struct pppol2tpv3_addr pppol2tp;} __packed;
struct sockaddr_pppol2tpv3in6 { __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */ unsigned int sa_protocol; /* protocol identifier */ struct pppol2tpv3in6_addr pppol2tp;} __packed;
/* Codes to identify message types */#define PADI_CODE 0x09#define PADO_CODE 0x07#define PADR_CODE 0x19#define PADS_CODE 0x65#define PADT_CODE 0xa7struct pppoe_tag { __be16 tag_type; __be16 tag_len;#ifndef __KERNEL__ char tag_data[];#endif} __attribute__ ((packed));
/* Tag identifiers */#define PTT_EOL __cpu_to_be16(0x0000)#define PTT_SRV_NAME __cpu_to_be16(0x0101)#define PTT_AC_NAME __cpu_to_be16(0x0102)#define PTT_HOST_UNIQ __cpu_to_be16(0x0103)#define PTT_AC_COOKIE __cpu_to_be16(0x0104)#define PTT_VENDOR __cpu_to_be16(0x0105)#define PTT_RELAY_SID __cpu_to_be16(0x0110)#define PTT_SRV_ERR __cpu_to_be16(0x0201)#define PTT_SYS_ERR __cpu_to_be16(0x0202)#define PTT_GEN_ERR __cpu_to_be16(0x0203)
struct pppoe_hdr {#if defined(__LITTLE_ENDIAN_BITFIELD) __u8 type : 4; __u8 ver : 4;#elif defined(__BIG_ENDIAN_BITFIELD) __u8 ver : 4; __u8 type : 4;#else#error "Please fix <asm/byteorder.h>"#endif __u8 code; __be16 sid; __be16 length;#ifndef __KERNEL__ struct pppoe_tag tag[];#endif} __packed;
/* Length of entire PPPoE + PPP header */#define PPPOE_SES_HLEN 8
#endif /* _UAPI__LINUX_IF_PPPOX_H */