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Diffstat (limited to 'include/uapi/linux/if_pppox.h')
-rw-r--r--include/uapi/linux/if_pppox.h156
1 files changed, 156 insertions, 0 deletions
diff --git a/include/uapi/linux/if_pppox.h b/include/uapi/linux/if_pppox.h
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index 000000000000..0b46fd57c8f6
--- /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 */