netisr: Add hashcheck method to check and adjust hw provided hash
[dragonfly.git] / sys / net / netmsg.h
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1/*
2 * Copyright (c) 2003 Jeffrey Hsu
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Jeffrey M. Hsu.
16 * 4. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
e3873585 30 * $DragonFly: src/sys/net/netmsg.h,v 1.10 2008/10/27 02:56:30 sephe Exp $
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31 */
32
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33#ifndef _NET_NETMSG_H_
34#define _NET_NETMSG_H_
35
36#ifndef _SYS_THREAD_H_
37#include <sys/thread.h>
38#endif
39#ifndef _SYS_PROTOSW_H_
40#include <sys/protosw.h>
41#endif
8a113dae 42
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43struct pktinfo;
44
002c1265 45typedef void (*netisr_fn_t)(netmsg_t);
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46typedef void (*netisr_ru_t)(void);
47typedef void (*netisr_cpufn_t)(struct mbuf **, int);
e6f77b88 48typedef void (*netisr_hashck_t)(struct mbuf *, const struct pktinfo *);
4599cf19 49
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50#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
51
4599cf19 52/*
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53 * The base netmsg prefixes all netmsgs and includes an embedded LWKT
54 * message.
4599cf19 55 */
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56struct netmsg_base {
57 struct lwkt_msg lmsg;
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58 netisr_fn_t nm_dispatch;
59 struct socket *nm_so;
002c1265 60};
4599cf19 61
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62typedef struct netmsg_base *netmsg_base_t;
63
64/*
65 * NETISR messages
66 *
67 * NOTE: netmsg_packet is embedded in mbufs.
68 */
69TAILQ_HEAD(notifymsglist, netmsg_so_notify);
70
71struct netmsg_packet {
72 struct netmsg_base base;
73 struct mbuf *nm_packet;
74 int nm_nxt;
75};
76
77struct netmsg_pr_timeout {
78 struct netmsg_base base;
79};
80
81struct netmsg_so_notify;
82typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg_so_notify *);
83
84struct netmsg_so_notify {
85 struct netmsg_base base;
86 msg_predicate_fn_t nm_predicate;
87 int nm_fflags; /* flags e.g. FNONBLOCK */
88 int nm_etype; /* receive or send event */
89 TAILQ_ENTRY(netmsg_so_notify) nm_list;
90};
91
92struct netmsg_so_notify_abort {
93 struct netmsg_base base;
94 struct netmsg_so_notify *nm_notifymsg;
95};
96
97#define NM_REVENT 0x1 /* event on receive buffer */
98#define NM_SEVENT 0x2 /* event on send buffer */
8d420ad8 99
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100/*
101 * User protocol requests messages.
102 */
103struct netmsg_pru_abort {
002c1265 104 struct netmsg_base base;
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105};
106
107struct netmsg_pru_accept {
002c1265 108 struct netmsg_base base;
c3c96e44 109 struct sockaddr **nm_nam;
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110};
111
112struct netmsg_pru_attach {
002c1265 113 struct netmsg_base base;
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114 int nm_proto;
115 struct pru_attach_info *nm_ai;
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116};
117
118struct netmsg_pru_bind {
002c1265 119 struct netmsg_base base;
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120 struct sockaddr *nm_nam;
121 struct thread *nm_td;
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122};
123
124struct netmsg_pru_connect {
002c1265 125 struct netmsg_base base;
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126 struct sockaddr *nm_nam;
127 struct thread *nm_td;
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128 struct mbuf *nm_m; /* connect with send */
129 int nm_flags; /* connect with send */
130 int nm_reconnect; /* message control */
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131};
132
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133#define NMSG_RECONNECT_RECONNECT 0x0001 /* thread port change */
134#define NMSG_RECONNECT_NAMALLOC 0x0002 /* nm_nam allocated */
135#define NMSG_RECONNECT_PUSH 0x0004 /* call tcp_output */
136#define NMSG_RECONNECT_FALLBACK 0x0008 /* fallback to ipv4 */
137
8a113dae 138struct netmsg_pru_connect2 {
002c1265 139 struct netmsg_base base;
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140 struct socket *nm_so1;
141 struct socket *nm_so2;
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142};
143
144struct netmsg_pru_control {
002c1265 145 struct netmsg_base base;
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146 u_long nm_cmd;
147 caddr_t nm_data;
148 struct ifnet *nm_ifp;
149 struct thread *nm_td;
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150};
151
152struct netmsg_pru_detach {
002c1265 153 struct netmsg_base base;
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154};
155
156struct netmsg_pru_disconnect {
002c1265 157 struct netmsg_base base;
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158};
159
160struct netmsg_pru_listen {
002c1265 161 struct netmsg_base base;
c3c96e44 162 struct thread *nm_td;
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163};
164
165struct netmsg_pru_peeraddr {
002c1265 166 struct netmsg_base base;
c3c96e44 167 struct sockaddr **nm_nam;
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168};
169
170struct netmsg_pru_rcvd {
002c1265 171 struct netmsg_base base;
c3c96e44 172 int nm_flags;
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173};
174
175struct netmsg_pru_rcvoob {
002c1265 176 struct netmsg_base base;
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177 struct mbuf *nm_m;
178 int nm_flags;
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179};
180
181struct netmsg_pru_send {
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182 struct netmsg_base base;
183 int nm_flags; /* PRUS_xxx */
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184 struct mbuf *nm_m;
185 struct sockaddr *nm_addr;
186 struct mbuf *nm_control;
187 struct thread *nm_td;
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188 /*
189 * XXX hack to be 100% certain netmsg_pru_send can be overwritten
190 * by netmsg_pru_connect
191 */
192 char nm_dummy[sizeof(struct netmsg_pru_connect) -
193 sizeof(struct netmsg_base)];
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194};
195
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196#define PRUS_OOB 0x1
197#define PRUS_EOF 0x2
198#define PRUS_MORETOCOME 0x4
199#define PRUS_NAMALLOC 0x8
200
8a113dae 201struct netmsg_pru_sense {
002c1265 202 struct netmsg_base base;
c3c96e44 203 struct stat *nm_stat;
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204};
205
206struct netmsg_pru_shutdown {
002c1265 207 struct netmsg_base base;
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208};
209
210struct netmsg_pru_sockaddr {
002c1265 211 struct netmsg_base base;
c3c96e44 212 struct sockaddr **nm_nam;
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213};
214
215struct netmsg_pru_sosend {
002c1265 216 struct netmsg_base base;
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217 struct sockaddr *nm_addr;
218 struct uio *nm_uio;
219 struct mbuf *nm_top;
220 struct mbuf *nm_control;
221 int nm_flags;
222 struct thread *nm_td;
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223};
224
225struct netmsg_pru_soreceive {
002c1265 226 struct netmsg_base base;
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227 struct sockaddr *nm_addr;
228 struct sockaddr **nm_paddr;
229 struct uio *nm_uio;
230 struct sockbuf *nm_sio;
231 struct mbuf **nm_controlp;
232 int *nm_flagsp;
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233};
234
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235struct netmsg_pr_ctloutput {
236 struct netmsg_base base;
c3c96e44 237 struct sockopt *nm_sopt;
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238};
239
e3873585 240struct netmsg_pru_ctlinput {
002c1265 241 struct netmsg_base base;
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242 int nm_cmd;
243 struct sockaddr *nm_arg;
244 void *nm_extra;
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245};
246
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247/*
248 * Union of all possible netmsgs. Note that when a netmsg is sent the
249 * actual allocated storage is likely only the size of the particular
250 * class of message, and not sizeof(union netmsg).
251 */
252union netmsg {
253 struct lwkt_msg lmsg; /* base embedded */
254 struct netmsg_base base; /* base embedded */
255
256 struct netmsg_packet packet; /* mbuf embedded */
257 struct netmsg_pr_timeout timeout;
258 struct netmsg_so_notify notify;
259 struct netmsg_so_notify_abort notify_abort;
260
261 struct netmsg_pr_ctloutput ctloutput;
262
263 struct netmsg_pru_abort abort;
264 struct netmsg_pru_accept accept; /* synchronous */
265 struct netmsg_pru_attach attach;
266 struct netmsg_pru_bind bind;
267 struct netmsg_pru_connect connect;
268 struct netmsg_pru_connect2 connect2;
269 struct netmsg_pru_control control; /* synchronous */
270 struct netmsg_pru_detach detach;
271 struct netmsg_pru_disconnect disconnect;
272 struct netmsg_pru_listen listen;
273 struct netmsg_pru_peeraddr peeraddr;
274 struct netmsg_pru_rcvd rcvd;
275 struct netmsg_pru_rcvoob rcvoob;
276 struct netmsg_pru_send send;
277 struct netmsg_pru_sense sense;
278 struct netmsg_pru_shutdown shutdown;
279 struct netmsg_pru_sockaddr sockaddr;
280 struct netmsg_pru_sosend sosend; /* synchronous */
281 struct netmsg_pru_soreceive soreceive; /* synchronous */
282 struct netmsg_pru_ctlinput ctlinput;
283};
284
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285#endif /* _KERNEL || _KERNEL_STRUCTURES */
286
287#endif /* !_NET_NETMSG_H_ */