diff options
Diffstat (limited to 'include/uapi/linux/if_pppox.h')
| -rw-r--r-- | include/uapi/linux/if_pppox.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/include/uapi/linux/if_pppox.h b/include/uapi/linux/if_pppox.h new file mode 100644 index 00000000000..0b46fd57c8f --- /dev/null +++ b/include/uapi/linux/if_pppox.h @@ -0,0 +1,156 @@ +/*************************************************************************** + * 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_ether.h> +#include <linux/if_pppol2tp.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 { + __be16 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; + +/********************************************************************* + * + * ioctl interface for defining forwarding of connections + * + ********************************************************************/ + +#define PPPOEIOCSFWD _IOW(0xB1 ,0, size_t) +#define PPPOEIOCDFWD _IO(0xB1 ,1) +/*#define PPPOEIOCGFWD _IOWR(0xB1,2, size_t)*/ + +/* Codes to identify message types */ +#define PADI_CODE 0x09 +#define PADO_CODE 0x07 +#define PADR_CODE 0x19 +#define PADS_CODE 0x65 +#define PADT_CODE 0xa7 +struct pppoe_tag { + __be16 tag_type; + __be16 tag_len; + char tag_data[0]; +} __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 ver : 4; + __u8 type : 4; +#elif defined(__BIG_ENDIAN_BITFIELD) + __u8 type : 4; + __u8 ver : 4; +#else +#error "Please fix <asm/byteorder.h>" +#endif + __u8 code; + __be16 sid; + __be16 length; + struct pppoe_tag tag[0]; +} __packed; + +/* Length of entire PPPoE + PPP header */ +#define PPPOE_SES_HLEN 8 + + +#endif /* _UAPI__LINUX_IF_PPPOX_H */ |