summaryrefslogtreecommitdiffstats
path: root/include/linux/if_pppox.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/if_pppox.h')
-rw-r--r--include/linux/if_pppox.h175
1 files changed, 175 insertions, 0 deletions
diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h
new file mode 100644
index 000000000000..e677f73f13dd
--- /dev/null
+++ b/include/linux/if_pppox.h
@@ -0,0 +1,175 @@
+/***************************************************************************
+ * 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 __LINUX_IF_PPPOX_H
+#define __LINUX_IF_PPPOX_H
+
+
+#include <asm/types.h>
+#include <asm/byteorder.h>
+
+#ifdef __KERNEL__
+#include <linux/if_ether.h>
+#include <linux/if.h>
+#include <linux/netdevice.h>
+#include <asm/semaphore.h>
+#include <linux/ppp_channel.h>
+#endif /* __KERNEL__ */
+
+/* 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 __u16 sid_t;
+struct pppoe_addr{
+ sid_t sid; /* Session identifier */
+ unsigned char remote[ETH_ALEN]; /* Remote address */
+ char dev[IFNAMSIZ]; /* Local device to use */
+};
+
+/************************************************************************
+ * Protocols supported by AF_PPPOX
+ */
+#define PX_PROTO_OE 0 /* Currently just PPPoE */
+#define PX_MAX_PROTO 1
+
+struct sockaddr_pppox {
+ sa_family_t sa_family; /* address family, AF_PPPOX */
+ unsigned int sa_protocol; /* protocol identifier */
+ union{
+ struct pppoe_addr pppoe;
+ }sa_addr;
+}__attribute__ ((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 {
+ __u16 tag_type;
+ __u16 tag_len;
+ char tag_data[0];
+} __attribute ((packed));
+
+/* Tag identifiers */
+#define PTT_EOL __constant_htons(0x0000)
+#define PTT_SRV_NAME __constant_htons(0x0101)
+#define PTT_AC_NAME __constant_htons(0x0102)
+#define PTT_HOST_UNIQ __constant_htons(0x0103)
+#define PTT_AC_COOKIE __constant_htons(0x0104)
+#define PTT_VENDOR __constant_htons(0x0105)
+#define PTT_RELAY_SID __constant_htons(0x0110)
+#define PTT_SRV_ERR __constant_htons(0x0201)
+#define PTT_SYS_ERR __constant_htons(0x0202)
+#define PTT_GEN_ERR __constant_htons(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;
+ __u16 sid;
+ __u16 length;
+ struct pppoe_tag tag[0];
+} __attribute__ ((packed));
+
+#ifdef __KERNEL__
+struct pppoe_opt {
+ struct net_device *dev; /* device associated with socket*/
+ struct pppoe_addr pa; /* what this socket is bound to*/
+ struct sockaddr_pppox relay; /* what socket data will be
+ relayed to (PPPoE relaying) */
+};
+
+#include <net/sock.h>
+
+struct pppox_sock {
+ /* struct sock must be the first member of pppox_sock */
+ struct sock sk;
+ struct ppp_channel chan;
+ struct pppox_sock *next; /* for hash table */
+ union {
+ struct pppoe_opt pppoe;
+ } proto;
+ unsigned short num;
+};
+#define pppoe_dev proto.pppoe.dev
+#define pppoe_pa proto.pppoe.pa
+#define pppoe_relay proto.pppoe.relay
+
+static inline struct pppox_sock *pppox_sk(struct sock *sk)
+{
+ return (struct pppox_sock *)sk;
+}
+
+static inline struct sock *sk_pppox(struct pppox_sock *po)
+{
+ return (struct sock *)po;
+}
+
+struct module;
+
+struct pppox_proto {
+ int (*create)(struct socket *sock);
+ int (*ioctl)(struct socket *sock, unsigned int cmd,
+ unsigned long arg);
+ struct module *owner;
+};
+
+extern int register_pppox_proto(int proto_num, struct pppox_proto *pp);
+extern void unregister_pppox_proto(int proto_num);
+extern void pppox_unbind_sock(struct sock *sk);/* delete ppp-channel binding */
+extern int pppox_channel_ioctl(struct ppp_channel *pc, unsigned int cmd,
+ unsigned long arg);
+
+/* PPPoX socket states */
+enum {
+ PPPOX_NONE = 0, /* initial state */
+ PPPOX_CONNECTED = 1, /* connection established ==TCP_ESTABLISHED */
+ PPPOX_BOUND = 2, /* bound to ppp device */
+ PPPOX_RELAY = 4, /* forwarding is enabled */
+ PPPOX_ZOMBIE = 8, /* dead, but still bound to ppp device */
+ PPPOX_DEAD = 16 /* dead, useless, please clean me up!*/
+};
+
+#endif /* __KERNEL__ */
+
+#endif /* !(__LINUX_IF_PPPOX_H) */
OpenPOWER on IntegriCloud