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author | archie <archie@FreeBSD.org> | 2002-08-20 21:59:50 +0000 |
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committer | archie <archie@FreeBSD.org> | 2002-08-20 21:59:50 +0000 |
commit | aacc2528fe00ad2c9ff94e93627b3d6bb0c7df91 (patch) | |
tree | 5e3340ef150dc2507289b1653421a20f07504c93 /sys/netgraph/ng_l2tp.h | |
parent | aa2ce9317a73ceeffed276cfdf1fe52c11a880cb (diff) | |
download | FreeBSD-src-aacc2528fe00ad2c9ff94e93627b3d6bb0c7df91.zip FreeBSD-src-aacc2528fe00ad2c9ff94e93627b3d6bb0c7df91.tar.gz |
New L2TP netgraph node type.
Obtained from: Packet Design
Diffstat (limited to 'sys/netgraph/ng_l2tp.h')
-rw-r--r-- | sys/netgraph/ng_l2tp.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/sys/netgraph/ng_l2tp.h b/sys/netgraph/ng_l2tp.h new file mode 100644 index 0000000..3be85da --- /dev/null +++ b/sys/netgraph/ng_l2tp.h @@ -0,0 +1,161 @@ + +/* + * Copyright (c) 2001-2002 Packet Design, LLC. + * All rights reserved. + * + * Subject to the following obligations and disclaimer of warranty, + * use and redistribution of this software, in source or object code + * forms, with or without modifications are expressly permitted by + * Packet Design; provided, however, that: + * + * (i) Any and all reproductions of the source or object code + * must include the copyright notice above and the following + * disclaimer of warranties; and + * (ii) No rights are granted, in any manner or form, to use + * Packet Design trademarks, including the mark "PACKET DESIGN" + * on advertising, endorsements, or otherwise except as such + * appears in the above copyright notice or in the software. + * + * THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO + * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING + * THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED + * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, + * OR NON-INFRINGEMENT. PACKET DESIGN DOES NOT WARRANT, GUARANTEE, + * OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS + * OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, + * RELIABILITY OR OTHERWISE. IN NO EVENT SHALL PACKET DESIGN BE + * LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE + * OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL + * DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF + * USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + * THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + * + * Author: Archie Cobbs <archie@freebsd.org> + * + * $FreeBSD$ + */ + +#ifndef _NETGRAPH_L2TP_H_ +#define _NETGRAPH_L2TP_H_ + +/* Node type name and magic cookie */ +#define NG_L2TP_NODE_TYPE "l2tp" +#define NGM_L2TP_COOKIE 1011392401 + +/* Hook names */ +#define NG_L2TP_HOOK_CTRL "ctrl" /* control channel hook */ +#define NG_L2TP_HOOK_LOWER "lower" /* hook to lower layers */ + +/* Session hooks: prefix plus hex session ID, e.g., "session_3e14" */ +#define NG_L2TP_HOOK_SESSION_P "session_" /* session data hook (prefix) */ +#define NG_L2TP_HOOK_SESSION_F "session_%04x" /* session data hook (format) */ + +/* Configuration for a node */ +struct ng_l2tp_config { + u_char enabled; /* enables traffic flow */ + u_char match_id; /* tunnel id must match 'tunnel_id' */ + u_int16_t tunnel_id; /* local tunnel id */ + u_int16_t peer_id; /* peer's tunnel id */ + u_int16_t peer_win; /* peer's max recv window size */ + u_int16_t rexmit_max; /* max retransmits before failure */ + u_int16_t rexmit_max_to; /* max delay between retransmits */ +}; + +/* Keep this in sync with the above structure definition */ +#define NG_L2TP_CONFIG_TYPE_INFO { \ + { "enabled", &ng_parse_uint8_type }, \ + { "match_id", &ng_parse_uint8_type }, \ + { "tunnel_id", &ng_parse_hint16_type }, \ + { "peer_id", &ng_parse_hint16_type }, \ + { "peer_win", &ng_parse_uint16_type }, \ + { "rexmit_max", &ng_parse_uint16_type }, \ + { "rexmit_max_to", &ng_parse_uint16_type }, \ + { NULL } \ +} + +/* Configuration for a session hook */ +struct ng_l2tp_sess_config { + u_int16_t session_id; /* local session id */ + u_int16_t peer_id; /* peer's session id */ + u_char control_dseq; /* whether we control data sequencing */ + u_char enable_dseq; /* whether to enable data sequencing */ + u_char include_length; /* whether to include length field */ +}; + +/* Keep this in sync with the above structure definition */ +#define NG_L2TP_SESS_CONFIG_TYPE_INFO { \ + { "session_id", &ng_parse_hint16_type }, \ + { "peer_id", &ng_parse_hint16_type }, \ + { "control_dseq", &ng_parse_uint8_type }, \ + { "enable_dseq", &ng_parse_uint8_type }, \ + { "include_length", &ng_parse_uint8_type }, \ + { NULL } \ +} + +/* Statistics struct */ +struct ng_l2tp_stats { + u_int32_t xmitPackets; /* number of packets xmit */ + u_int32_t xmitOctets; /* number of octets xmit */ + u_int32_t xmitZLBs; /* ack-only packets transmitted */ + u_int32_t xmitDrops; /* xmits dropped due to full window */ + u_int32_t xmitTooBig; /* ctrl pkts dropped because too big */ + u_int32_t xmitInvalid; /* ctrl packets with no session ID */ + u_int32_t xmitDataTooBig; /* data pkts dropped because too big */ + u_int32_t xmitRetransmits; /* retransmitted packets */ + u_int32_t recvPackets; /* number of packets rec'd */ + u_int32_t recvOctets; /* number of octets rec'd */ + u_int32_t recvRunts; /* too short packets rec'd */ + u_int32_t recvInvalid; /* invalid packets rec'd */ + u_int32_t recvWrongTunnel; /* packets rec'd with wrong tunnel id */ + u_int32_t recvUnknownSID; /* pkts rec'd with unknown session id */ + u_int32_t recvBadAcks; /* ctrl pkts rec'd with invalid 'nr' */ + u_int32_t recvOutOfOrder; /* out of order ctrl pkts rec'd */ + u_int32_t recvDuplicates; /* duplicate ctrl pkts rec'd */ + u_int32_t recvDataDrops; /* dup/out of order data pkts rec'd */ + u_int32_t recvZLBs; /* ack-only packets rec'd */ + u_int32_t memoryFailures; /* times we couldn't allocate memory */ +}; + +/* Keep this in sync with the above structure definition */ +#define NG_L2TP_STATS_TYPE_INFO { \ + { "xmitPackets", &ng_parse_uint32_type }, \ + { "xmitOctets", &ng_parse_uint32_type }, \ + { "xmitZLBs", &ng_parse_uint32_type }, \ + { "xmitDrops", &ng_parse_uint32_type }, \ + { "xmitTooBig", &ng_parse_uint32_type }, \ + { "xmitInvalid", &ng_parse_uint32_type }, \ + { "xmitDataTooBig", &ng_parse_uint32_type }, \ + { "xmitRetransmits", &ng_parse_uint32_type }, \ + { "recvPackets", &ng_parse_uint32_type }, \ + { "recvOctets", &ng_parse_uint32_type }, \ + { "recvRunts", &ng_parse_uint32_type }, \ + { "recvInvalid", &ng_parse_uint32_type }, \ + { "recvWrongTunnel", &ng_parse_uint32_type }, \ + { "recvUnknownSID", &ng_parse_uint32_type }, \ + { "recvBadAcks", &ng_parse_uint32_type }, \ + { "recvOutOfOrder", &ng_parse_uint32_type }, \ + { "recvDuplicates", &ng_parse_uint32_type }, \ + { "recvDataDrops", &ng_parse_uint32_type }, \ + { "recvZLBs", &ng_parse_uint32_type }, \ + { "memoryFailures", &ng_parse_uint32_type }, \ + { NULL } \ +} + +/* Netgraph commands */ +enum { + NGM_L2TP_SET_CONFIG = 1, /* supply a struct ng_l2tp_config */ + NGM_L2TP_GET_CONFIG, /* returns a struct ng_l2tp_config */ + NGM_L2TP_SET_SESS_CONFIG, /* supply struct ng_l2tp_sess_config */ + NGM_L2TP_GET_SESS_CONFIG, /* supply a session id (u_int16_t) */ + NGM_L2TP_GET_STATS, /* returns struct ng_l2tp_stats */ + NGM_L2TP_CLR_STATS, /* clears stats */ + NGM_L2TP_GETCLR_STATS, /* returns & clears stats */ + NGM_L2TP_ACK_FAILURE, /* sent *from* node after ack timeout */ +}; + +#endif /* _NETGRAPH_L2TP_H_ */ |