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 #define MSGF_IGNSOPORT MSGF_USER0 /* don't check so_port */ 63 #define MSGF_PROTO1 MSGF_USER1 /* protocol specific */ 64 65 typedef struct netmsg_base *netmsg_base_t; 66 67 /* 68 * NETISR messages 69 * 70 * NOTE: 71 * - netmsg_packet is embedded in mbufs. 72 * - netmsg_pru_send is embedded in mbufs. 73 * - netmsg_inarp is embedded in mbufs. 74 * - netmsg_ctlinput is embedded in mbufs. 75 */ 76 TAILQ_HEAD(notifymsglist, netmsg_so_notify); 77 78 struct netmsg_packet { 79 struct netmsg_base base; 80 struct mbuf *nm_packet; 81 int nm_nxt; 82 }; 83 84 struct netmsg_inarp { 85 struct netmsg_base base; 86 struct mbuf *m; 87 in_addr_t saddr; 88 in_addr_t taddr; 89 in_addr_t myaddr; 90 }; 91 92 struct netmsg_ctlinput { 93 struct netmsg_base base; 94 struct mbuf *m; 95 int cmd; 96 int hlen; 97 int proto; 98 }; 99 100 struct netmsg_pr_timeout { 101 struct netmsg_base base; 102 }; 103 104 struct netmsg_so_notify; 105 typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg_so_notify *); 106 107 struct netmsg_so_notify { 108 struct netmsg_base base; 109 msg_predicate_fn_t nm_predicate; 110 int nm_fflags; /* flags e.g. FNONBLOCK */ 111 int nm_etype; /* receive or send event */ 112 TAILQ_ENTRY(netmsg_so_notify) nm_list; 113 }; 114 115 struct netmsg_so_notify_abort { 116 struct netmsg_base base; 117 struct netmsg_so_notify *nm_notifymsg; 118 }; 119 120 #define NM_REVENT 0x1 /* event on receive buffer */ 121 #define NM_SEVENT 0x2 /* event on send buffer */ 122 123 /* 124 * User protocol requests messages. 125 */ 126 struct netmsg_pru_abort { 127 struct netmsg_base base; 128 }; 129 130 struct netmsg_pru_accept { 131 struct netmsg_base base; 132 struct sockaddr **nm_nam; 133 }; 134 135 struct netmsg_pru_attach { 136 struct netmsg_base base; 137 int nm_proto; 138 struct pru_attach_info *nm_ai; 139 }; 140 141 struct netmsg_pru_bind { 142 struct netmsg_base base; 143 struct sockaddr *nm_nam; 144 struct thread *nm_td; 145 int nm_flags; /* PRUB_ */ 146 }; 147 148 #define PRUB_RELINK 0x0001 149 150 struct netmsg_pru_connect { 151 struct netmsg_base base; 152 struct sockaddr *nm_nam; 153 struct thread *nm_td; 154 struct mbuf *nm_m; /* connect with send */ 155 int nm_sndflags; /* connect with send, PRUS_ */ 156 int nm_flags; /* message control */ 157 }; 158 159 #define PRUC_RECONNECT 0x0001 /* thread port change */ 160 #define PRUC_PUSH 0x0004 /* call tcp_output */ 161 #define PRUC_ASYNC 0x0010 162 #define PRUC_HELDTD 0x0020 163 #define PRUC_HASLADDR 0x0040 164 165 struct netmsg_pru_connect2 { 166 struct netmsg_base base; 167 struct socket *nm_so1; 168 struct socket *nm_so2; 169 }; 170 171 struct netmsg_pru_control { 172 struct netmsg_base base; 173 u_long nm_cmd; 174 caddr_t nm_data; 175 struct ifnet *nm_ifp; 176 struct thread *nm_td; 177 }; 178 179 struct netmsg_pru_detach { 180 struct netmsg_base base; 181 }; 182 183 struct netmsg_pru_disconnect { 184 struct netmsg_base base; 185 }; 186 187 struct netmsg_pru_listen { 188 struct netmsg_base base; 189 struct thread *nm_td; 190 int nm_flags; /* PRUL_xxx */ 191 }; 192 193 #define PRUL_RELINK 0x1 194 195 struct netmsg_pru_peeraddr { 196 struct netmsg_base base; 197 struct sockaddr **nm_nam; 198 }; 199 200 struct netmsg_pru_rcvd { 201 struct netmsg_base base; 202 int nm_flags; 203 int nm_pru_flags; /* PRUR_xxx */ 204 }; 205 206 #define PRUR_ASYNC 0x1 207 #define PRUR_DEAD 0x2 208 209 struct netmsg_pru_rcvoob { 210 struct netmsg_base base; 211 struct mbuf *nm_m; 212 int nm_flags; 213 }; 214 215 struct netmsg_pru_send { 216 struct netmsg_base base; 217 int nm_flags; /* PRUS_xxx */ 218 int nm_priv; /* proto priv. */ 219 struct mbuf *nm_m; 220 struct sockaddr *nm_addr; 221 struct mbuf *nm_control; 222 struct thread *nm_td; 223 }; 224 225 #define PRUS_OOB 0x1 226 #define PRUS_EOF 0x2 227 #define PRUS_MORETOCOME 0x4 228 #define PRUS_NAMALLOC 0x8 229 #define PRUS_NOREPLY 0x10 230 #define PRUS_DONTROUTE 0x20 231 #define PRUS_FREEADDR 0x40 232 #define PRUS_HELDTD 0x80 233 234 struct netmsg_pru_sense { 235 struct netmsg_base base; 236 struct stat *nm_stat; 237 }; 238 239 struct netmsg_pru_shutdown { 240 struct netmsg_base base; 241 }; 242 243 struct netmsg_pru_sockaddr { 244 struct netmsg_base base; 245 struct sockaddr **nm_nam; 246 }; 247 248 struct netmsg_pru_sosend { 249 struct netmsg_base base; 250 struct sockaddr *nm_addr; 251 struct uio *nm_uio; 252 struct mbuf *nm_top; 253 struct mbuf *nm_control; 254 int nm_flags; 255 struct thread *nm_td; 256 }; 257 258 struct netmsg_pru_soreceive { 259 struct netmsg_base base; 260 struct sockaddr *nm_addr; 261 struct sockaddr **nm_paddr; 262 struct uio *nm_uio; 263 struct sockbuf *nm_sio; 264 struct mbuf **nm_controlp; 265 int *nm_flagsp; 266 }; 267 268 struct netmsg_pr_ctloutput { 269 struct netmsg_base base; 270 int nm_flags; /* PRCO_xx */ 271 struct sockopt *nm_sopt; 272 }; 273 274 #define PRCO_HELDTD 0x1 275 276 struct netmsg_pr_ctlinput { 277 struct netmsg_base base; 278 int nm_cmd; 279 int nm_direct; 280 struct sockaddr *nm_arg; 281 void *nm_extra; 282 }; 283 284 /* 285 * Union of all possible netmsgs. Note that when a netmsg is sent the 286 * actual allocated storage is likely only the size of the particular 287 * class of message, and not sizeof(union netmsg). 288 */ 289 union netmsg { 290 struct lwkt_msg lmsg; /* base embedded */ 291 struct netmsg_base base; /* base embedded */ 292 293 struct netmsg_packet packet; /* mbuf embedded */ 294 struct netmsg_pr_timeout timeout; 295 struct netmsg_so_notify notify; 296 struct netmsg_so_notify_abort notify_abort; 297 298 struct netmsg_pr_ctloutput ctloutput; 299 struct netmsg_pr_ctlinput ctlinput; 300 301 struct netmsg_pru_abort abort; 302 struct netmsg_pru_accept accept; /* synchronous */ 303 struct netmsg_pru_attach attach; 304 struct netmsg_pru_bind bind; 305 struct netmsg_pru_connect connect; 306 struct netmsg_pru_connect2 connect2; 307 struct netmsg_pru_control control; /* synchronous */ 308 struct netmsg_pru_detach detach; 309 struct netmsg_pru_disconnect disconnect; 310 struct netmsg_pru_listen listen; 311 struct netmsg_pru_peeraddr peeraddr; 312 struct netmsg_pru_rcvd rcvd; 313 struct netmsg_pru_rcvoob rcvoob; 314 struct netmsg_pru_send send; 315 struct netmsg_pru_sense sense; 316 struct netmsg_pru_shutdown shutdown; 317 struct netmsg_pru_sockaddr sockaddr; 318 struct netmsg_pru_sosend sosend; /* synchronous */ 319 struct netmsg_pru_soreceive soreceive; /* synchronous */ 320 }; 321 322 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 323 324 #endif /* !_NET_NETMSG_H_ */ 325