git://bbs.cooldavid.org / net-next-2.6.git / blame
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|---|---|---|
| cf14a4d0 JC |
1 | /*************************************************************************** |
| 2 | * Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661) | |
| 3 | * | |
| 4 | * This file supplies definitions required by the PPP over L2TP driver | |
| fd558d18 | 5 | * (l2tp_ppp.c). All version information wrt this file is located in l2tp_ppp.c |
| cf14a4d0 JC |
6 | * |
| 7 | * License: | |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public License | |
| 10 | * as published by the Free Software Foundation; either version | |
| 11 | * 2 of the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef __LINUX_IF_PPPOL2TP_H | |
| 16 | #define __LINUX_IF_PPPOL2TP_H | |
| 17 | ||
| 00bfddaf | 18 | #include <linux/types.h> |
| cf14a4d0 JC |
19 | |
| 20 | #ifdef __KERNEL__ | |
| 21 | #include <linux/in.h> | |
| 22 | #endif | |
| 23 | ||
| 24 | /* Structure used to connect() the socket to a particular tunnel UDP | |
| 25 | * socket. | |
| 26 | */ | |
| d94d9fee | 27 | struct pppol2tp_addr { |
| 85efde6f | 28 | __kernel_pid_t pid; /* pid that owns the fd. |
| cf14a4d0 JC |
29 | * 0 => current */ |
| 30 | int fd; /* FD of UDP socket to use */ | |
| 31 | ||
| 32 | struct sockaddr_in addr; /* IP address and port to send to */ | |
| 33 | ||
| f424bb9e AV |
34 | __u16 s_tunnel, s_session; /* For matching incoming packets */ |
| 35 | __u16 d_tunnel, d_session; /* For sending outgoing packets */ | |
| cf14a4d0 JC |
36 | }; |
| 37 | ||
| e0d4435f JC |
38 | /* The L2TPv3 protocol changes tunnel and session ids from 16 to 32 |
| 39 | * bits. So we need a different sockaddr structure. | |
| 40 | */ | |
| 41 | struct pppol2tpv3_addr { | |
| 42 | pid_t pid; /* pid that owns the fd. | |
| 43 | * 0 => current */ | |
| 44 | int fd; /* FD of UDP or IP socket to use */ | |
| 45 | ||
| 46 | struct sockaddr_in addr; /* IP address and port to send to */ | |
| 47 | ||
| 48 | __u32 s_tunnel, s_session; /* For matching incoming packets */ | |
| 49 | __u32 d_tunnel, d_session; /* For sending outgoing packets */ | |
| 50 | }; | |
| 51 | ||
| cf14a4d0 JC |
52 | /* Socket options: |
| 53 | * DEBUG - bitmask of debug message categories | |
| 54 | * SENDSEQ - 0 => don't send packets with sequence numbers | |
| 55 | * 1 => send packets with sequence numbers | |
| 56 | * RECVSEQ - 0 => receive packet sequence numbers are optional | |
| 57 | * 1 => drop receive packets without sequence numbers | |
| 58 | * LNSMODE - 0 => act as LAC. | |
| 59 | * 1 => act as LNS. | |
| 60 | * REORDERTO - reorder timeout (in millisecs). If 0, don't try to reorder. | |
| 61 | */ | |
| 62 | enum { | |
| 63 | PPPOL2TP_SO_DEBUG = 1, | |
| 64 | PPPOL2TP_SO_RECVSEQ = 2, | |
| 65 | PPPOL2TP_SO_SENDSEQ = 3, | |
| 66 | PPPOL2TP_SO_LNSMODE = 4, | |
| 67 | PPPOL2TP_SO_REORDERTO = 5, | |
| 68 | }; | |
| 69 | ||
| 70 | /* Debug message categories for the DEBUG socket option */ | |
| 71 | enum { | |
| 72 | PPPOL2TP_MSG_DEBUG = (1 << 0), /* verbose debug (if | |
| 73 | * compiled in) */ | |
| 74 | PPPOL2TP_MSG_CONTROL = (1 << 1), /* userspace - kernel | |
| 75 | * interface */ | |
| 76 | PPPOL2TP_MSG_SEQ = (1 << 2), /* sequence numbers */ | |
| 77 | PPPOL2TP_MSG_DATA = (1 << 3), /* data packets */ | |
| 78 | }; | |
| 79 | ||
| 80 | ||
| 81 | ||
| 82 | #endif |