ICMP extensions for MPLS support for traceroute(8).
[dragonfly.git] / sys / net / netisr.h
CommitLineData
66d6c637
JH
1/*
2 * Copyright (c) 2004 Jeffrey M. Hsu. All rights reserved.
3 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
4 *
5 * This code is derived from software contributed to The DragonFly Project
6 * by Jeffrey M. Hsu.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of The DragonFly Project nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific, prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
984263bc
MD
34/*
35 * Copyright (c) 1980, 1986, 1989, 1993
36 * The Regents of the University of California. All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 *
66 * @(#)netisr.h 8.1 (Berkeley) 6/10/93
67 * $FreeBSD: src/sys/net/netisr.h,v 1.21.2.5 2002/02/09 23:02:39 luigi Exp $
0b30dad7 68 * $DragonFly: src/sys/net/netisr.h,v 1.25 2007/03/04 18:51:59 swildner Exp $
984263bc
MD
69 */
70
71#ifndef _NET_NETISR_H_
72#define _NET_NETISR_H_
73
74/*
75 * The networking code runs off software interrupts.
76 *
77 * You can switch into the network by doing splnet() and return by splx().
78 * The software interrupt level for the network is higher than the software
79 * level for the clock (so you can enter the network in routines called
80 * at timeout time).
81 */
82
83/*
84 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
85 * word which is used to de-multiplex a single software
86 * interrupt used for scheduling the network code to calls
87 * on the lowest level routine of each protocol.
88 */
35746821
MD
89#define NETISR_RESERVED0 0 /* cannot be used */
90#define NETISR_POLL 1 /* polling callback */
984263bc
MD
91#define NETISR_IP 2 /* same as AF_INET */
92#define NETISR_NS 6 /* same as AF_NS */
8bde602d
JH
93#define NETISR_AARP 15 /* Appletalk ARP */
94#define NETISR_ATALK2 16 /* Appletalk phase 2 */
95#define NETISR_ATALK1 17 /* Appletalk phase 1 */
984263bc
MD
96#define NETISR_ARP 18 /* same as AF_LINK */
97#define NETISR_IPX 23 /* same as AF_IPX */
8bde602d 98#define NETISR_USB 25 /* USB soft interrupt */
984263bc
MD
99#define NETISR_PPP 27 /* PPP soft interrupt */
100#define NETISR_IPV6 28 /* same as AF_INET6 */
101#define NETISR_NATM 29 /* same as AF_NATM */
102#define NETISR_NETGRAPH 30 /* same as AF_NETGRAPH */
103#define NETISR_POLLMORE 31 /* check if we need more polling */
104
8bde602d 105#define NETISR_MAX 32
ef0fdad1 106
03d6a592 107#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
984263bc 108
03d6a592
MD
109#ifndef _SYS_TYPES_H_
110#include <sys/types.h>
111#endif
112#ifndef _SYS_QUEUE_H_
113#include <sys/queue.h>
114#endif
115#ifndef _SYS_PROTOSW_H_
9eeaa8a9 116#include <sys/protosw.h>
03d6a592
MD
117#endif
118#ifndef _SYS_MSGPORT_H_
119#include <sys/msgport.h>
120#endif
121
122TAILQ_HEAD(notifymsglist, netmsg_so_notify);
9eeaa8a9
JH
123
124struct netmsg;
125
b76bed62 126typedef int (*netisr_fn_t)(struct netmsg *);
03d6a592 127typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg *);
9eeaa8a9
JH
128
129/*
130 * Base class. All net messages must start with the same fields.
131 */
132struct netmsg {
133 struct lwkt_msg nm_lmsg;
9eeaa8a9
JH
134};
135
136struct netmsg_packet {
137 struct lwkt_msg nm_lmsg;
9eeaa8a9
JH
138 struct mbuf *nm_packet;
139};
140
141struct netmsg_pr_ctloutput {
142 struct lwkt_msg nm_lmsg;
9eeaa8a9
JH
143 int (*nm_prfn) (struct socket *, struct sockopt *);
144 struct socket *nm_so;
145 struct sockopt *nm_sopt;
146};
147
148struct netmsg_pr_timeout {
149 struct lwkt_msg nm_lmsg;
b44419cb 150 int (*nm_prfn) (void);
9eeaa8a9
JH
151};
152
c1d0003c
JH
153struct netmsg_so_notify {
154 struct lwkt_msg nm_lmsg;
c1d0003c
JH
155 msg_predicate_fn_t nm_predicate;
156 struct socket *nm_so;
9ba76b73 157 int nm_fflags; /* flags e.g. FNONBLOCK */
c1d0003c
JH
158 int nm_etype; /* receive or send event */
159 TAILQ_ENTRY(netmsg_so_notify) nm_list;
160};
161
162#define NM_REVENT 0x1 /* event on receive buffer */
163#define NM_SEVENT 0x2 /* event on send buffer */
164
03d6a592
MD
165#endif
166
167#ifdef _KERNEL
168
9eeaa8a9
JH
169/*
170 * for dispatching pr_ functions,
171 * until they can be converted to message-passing
172 */
b44419cb
MD
173int netmsg_pru_abort(lwkt_msg_t);
174int netmsg_pru_accept(lwkt_msg_t);
175int netmsg_pru_attach(lwkt_msg_t);
176int netmsg_pru_bind(lwkt_msg_t);
177int netmsg_pru_connect(lwkt_msg_t);
178int netmsg_pru_connect2(lwkt_msg_t);
179int netmsg_pru_control(lwkt_msg_t);
180int netmsg_pru_detach(lwkt_msg_t);
181int netmsg_pru_disconnect(lwkt_msg_t);
182int netmsg_pru_listen(lwkt_msg_t);
183int netmsg_pru_peeraddr(lwkt_msg_t);
184int netmsg_pru_rcvd(lwkt_msg_t);
185int netmsg_pru_rcvoob(lwkt_msg_t);
186int netmsg_pru_send(lwkt_msg_t);
187int netmsg_pru_sense(lwkt_msg_t);
188int netmsg_pru_shutdown(lwkt_msg_t);
189int netmsg_pru_sockaddr(lwkt_msg_t);
190
191int netmsg_pru_sopoll(lwkt_msg_t);
192
193int netmsg_pr_ctloutput(lwkt_msg_t);
194int netmsg_pr_timeout(lwkt_msg_t);
195
196int netmsg_so_notify(lwkt_msg_t);
197int netmsg_so_notify_abort(lwkt_msg_t);
0ddb6032 198
03d6a592
MD
199#endif
200
201#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
202
b01ae44a 203typedef lwkt_port_t (*lwkt_portfn_t)(struct mbuf **);
8bde602d 204
8bde602d 205struct netisr {
a29576fc 206 lwkt_port ni_port; /* must be first */
bf82f9b7 207 lwkt_portfn_t ni_mport;
8bde602d 208 netisr_fn_t ni_handler;
a29576fc 209 struct netmsg ni_netmsg; /* for sched_netisr() (no-data) */
8bde602d
JH
210};
211
03d6a592
MD
212#endif
213
214#ifdef _KERNEL
215
3f48f9c5
JH
216extern lwkt_port netisr_afree_rport;
217
b01ae44a 218lwkt_port_t cpu0_portfn(struct mbuf **mptr);
ecdefdda 219lwkt_port_t cpu_portfn(int cpu);
bf82f9b7
MD
220void netisr_dispatch(int, struct mbuf *);
221int netisr_queue(int, struct mbuf *);
222void netisr_register(int, lwkt_portfn_t, netisr_fn_t);
223int netisr_unregister(int);
5c703385 224void netmsg_service_port_init(lwkt_port_t);
bf82f9b7 225void netmsg_service_loop(void *arg);
5c703385 226void netmsg_service_sync(void);
bf82f9b7 227void schednetisr(int);
984263bc 228
03d6a592 229#endif /* _KERNEL */
984263bc 230
bf82f9b7 231#endif /* _NET_NETISR_H_ */