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 * 30 * $DragonFly: src/sys/net/netmsg.h,v 1.10 2008/10/27 02:56:30 sephe Exp $ 31 */ 32 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 42 43 struct pktinfo; 44 45 typedef void (*netisr_fn_t)(netmsg_t); 46 typedef void (*netisr_ru_t)(void); 47 typedef void (*netisr_hashfn_t)(struct mbuf **, int); 48 typedef void (*netisr_hashck_t)(struct mbuf *, const struct pktinfo *); 49 50 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 51 52 /* 53 * The base netmsg prefixes all netmsgs and includes an embedded LWKT 54 * message. 55 */ 56 struct netmsg_base { 57 struct lwkt_msg lmsg; 58 netisr_fn_t nm_dispatch; 59 struct socket *nm_so; 60 }; 61 62 typedef struct netmsg_base *netmsg_base_t; 63 64 /* 65 * NETISR messages 66 * 67 * NOTE: 68 * - netmsg_packet is embedded in mbufs. 69 * - netmsg_pru_send is embedded in mbufs. 70 * - netmsg_inarp is embedded in mbufs. 71 */ 72 TAILQ_HEAD(notifymsglist, netmsg_so_notify); 73 74 struct netmsg_packet { 75 struct netmsg_base base; 76 struct mbuf *nm_packet; 77 int nm_nxt; 78 }; 79 80 struct netmsg_inarp { 81 struct netmsg_base base; 82 struct mbuf *m; 83 in_addr_t saddr; 84 in_addr_t taddr; 85 in_addr_t myaddr; 86 }; 87 88 struct netmsg_pr_timeout { 89 struct netmsg_base base; 90 }; 91 92 struct netmsg_so_notify; 93 typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg_so_notify *); 94 95 struct netmsg_so_notify { 96 struct netmsg_base base; 97 msg_predicate_fn_t nm_predicate; 98 int nm_fflags; /* flags e.g. FNONBLOCK */ 99 int nm_etype; /* receive or send event */ 100 TAILQ_ENTRY(netmsg_so_notify) nm_list; 101 }; 102 103 struct netmsg_so_notify_abort { 104 struct netmsg_base base; 105 struct netmsg_so_notify *nm_notifymsg; 106 }; 107 108 #define NM_REVENT 0x1 /* event on receive buffer */ 109 #define NM_SEVENT 0x2 /* event on send buffer */ 110 111 /* 112 * User protocol requests messages. 113 */ 114 struct netmsg_pru_abort { 115 struct netmsg_base base; 116 }; 117 118 struct netmsg_pru_accept { 119 struct netmsg_base base; 120 struct sockaddr **nm_nam; 121 }; 122 123 struct netmsg_pru_attach { 124 struct netmsg_base base; 125 int nm_proto; 126 struct pru_attach_info *nm_ai; 127 }; 128 129 struct netmsg_pru_bind { 130 struct netmsg_base base; 131 struct sockaddr *nm_nam; 132 struct thread *nm_td; 133 }; 134 135 struct netmsg_pru_connect { 136 struct netmsg_base base; 137 struct sockaddr *nm_nam; 138 struct thread *nm_td; 139 struct mbuf *nm_m; /* connect with send */ 140 int nm_flags; /* connect with send */ 141 int nm_reconnect; /* message control */ 142 }; 143 144 #define NMSG_RECONNECT_RECONNECT 0x0001 /* thread port change */ 145 #define NMSG_RECONNECT_NAMALLOC 0x0002 /* nm_nam allocated */ 146 #define NMSG_RECONNECT_PUSH 0x0004 /* call tcp_output */ 147 #define NMSG_RECONNECT_FALLBACK 0x0008 /* fallback to ipv4 */ 148 149 struct netmsg_pru_connect2 { 150 struct netmsg_base base; 151 struct socket *nm_so1; 152 struct socket *nm_so2; 153 }; 154 155 struct netmsg_pru_control { 156 struct netmsg_base base; 157 u_long nm_cmd; 158 caddr_t nm_data; 159 struct ifnet *nm_ifp; 160 struct thread *nm_td; 161 }; 162 163 struct netmsg_pru_detach { 164 struct netmsg_base base; 165 }; 166 167 struct netmsg_pru_disconnect { 168 struct netmsg_base base; 169 }; 170 171 struct netmsg_pru_listen { 172 struct netmsg_base base; 173 struct thread *nm_td; 174 }; 175 176 struct netmsg_pru_peeraddr { 177 struct netmsg_base base; 178 struct sockaddr **nm_nam; 179 }; 180 181 struct netmsg_pru_rcvd { 182 struct netmsg_base base; 183 int nm_flags; 184 int nm_pru_flags; /* PRUR_xxx */ 185 }; 186 187 #define PRUR_ASYNC 0x1 188 #define PRUR_DEAD 0x2 189 190 struct netmsg_pru_rcvoob { 191 struct netmsg_base base; 192 struct mbuf *nm_m; 193 int nm_flags; 194 }; 195 196 struct netmsg_pru_send { 197 struct netmsg_base base; 198 int nm_flags; /* PRUS_xxx */ 199 struct mbuf *nm_m; 200 struct sockaddr *nm_addr; 201 struct mbuf *nm_control; 202 struct thread *nm_td; 203 }; 204 205 #define PRUS_OOB 0x1 206 #define PRUS_EOF 0x2 207 #define PRUS_MORETOCOME 0x4 208 #define PRUS_NAMALLOC 0x8 209 #define PRUS_NOREPLY 0x10 210 #define PRUS_DONTROUTE 0x20 211 #define PRUS_FREEADDR 0x40 212 213 struct netmsg_pru_sense { 214 struct netmsg_base base; 215 struct stat *nm_stat; 216 }; 217 218 struct netmsg_pru_shutdown { 219 struct netmsg_base base; 220 }; 221 222 struct netmsg_pru_sockaddr { 223 struct netmsg_base base; 224 struct sockaddr **nm_nam; 225 }; 226 227 struct netmsg_pru_sosend { 228 struct netmsg_base base; 229 struct sockaddr *nm_addr; 230 struct uio *nm_uio; 231 struct mbuf *nm_top; 232 struct mbuf *nm_control; 233 int nm_flags; 234 struct thread *nm_td; 235 }; 236 237 struct netmsg_pru_soreceive { 238 struct netmsg_base base; 239 struct sockaddr *nm_addr; 240 struct sockaddr **nm_paddr; 241 struct uio *nm_uio; 242 struct sockbuf *nm_sio; 243 struct mbuf **nm_controlp; 244 int *nm_flagsp; 245 }; 246 247 struct netmsg_pr_ctloutput { 248 struct netmsg_base base; 249 struct sockopt *nm_sopt; 250 }; 251 252 struct netmsg_pru_ctlinput { 253 struct netmsg_base base; 254 int nm_cmd; 255 struct sockaddr *nm_arg; 256 void *nm_extra; 257 }; 258 259 /* 260 * Union of all possible netmsgs. Note that when a netmsg is sent the 261 * actual allocated storage is likely only the size of the particular 262 * class of message, and not sizeof(union netmsg). 263 */ 264 union netmsg { 265 struct lwkt_msg lmsg; /* base embedded */ 266 struct netmsg_base base; /* base embedded */ 267 268 struct netmsg_packet packet; /* mbuf embedded */ 269 struct netmsg_pr_timeout timeout; 270 struct netmsg_so_notify notify; 271 struct netmsg_so_notify_abort notify_abort; 272 273 struct netmsg_pr_ctloutput ctloutput; 274 275 struct netmsg_pru_abort abort; 276 struct netmsg_pru_accept accept; /* synchronous */ 277 struct netmsg_pru_attach attach; 278 struct netmsg_pru_bind bind; 279 struct netmsg_pru_connect connect; 280 struct netmsg_pru_connect2 connect2; 281 struct netmsg_pru_control control; /* synchronous */ 282 struct netmsg_pru_detach detach; 283 struct netmsg_pru_disconnect disconnect; 284 struct netmsg_pru_listen listen; 285 struct netmsg_pru_peeraddr peeraddr; 286 struct netmsg_pru_rcvd rcvd; 287 struct netmsg_pru_rcvoob rcvoob; 288 struct netmsg_pru_send send; 289 struct netmsg_pru_sense sense; 290 struct netmsg_pru_shutdown shutdown; 291 struct netmsg_pru_sockaddr sockaddr; 292 struct netmsg_pru_sosend sosend; /* synchronous */ 293 struct netmsg_pru_soreceive soreceive; /* synchronous */ 294 struct netmsg_pru_ctlinput ctlinput; 295 }; 296 297 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 298 299 #endif /* !_NET_NETMSG_H_ */ 300