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 * - netmsg_genpkt is embedded in mbufs. 76 */ 77 TAILQ_HEAD(notifymsglist, netmsg_so_notify); 78 79 struct netmsg_packet { 80 struct netmsg_base base; 81 struct mbuf *nm_packet; 82 int nm_nxt; 83 }; 84 85 struct netmsg_inarp { 86 struct netmsg_base base; 87 struct mbuf *m; 88 in_addr_t saddr; 89 in_addr_t taddr; 90 in_addr_t myaddr; 91 }; 92 93 struct netmsg_ctlinput { 94 struct netmsg_base base; 95 struct mbuf *m; 96 int cmd; 97 int hlen; 98 int proto; 99 }; 100 101 struct netmsg_genpkt { 102 struct netmsg_base base; 103 struct mbuf *m; 104 void *arg1; 105 u_long arg2; 106 }; 107 108 struct netmsg_pr_timeout { 109 struct netmsg_base base; 110 }; 111 112 struct netmsg_so_notify; 113 typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg_so_notify *); 114 115 struct netmsg_so_notify { 116 struct netmsg_base base; 117 msg_predicate_fn_t nm_predicate; 118 int nm_fflags; /* flags e.g. FNONBLOCK */ 119 int nm_etype; /* receive or send event */ 120 TAILQ_ENTRY(netmsg_so_notify) nm_list; 121 }; 122 123 struct netmsg_so_notify_abort { 124 struct netmsg_base base; 125 struct netmsg_so_notify *nm_notifymsg; 126 }; 127 128 #define NM_REVENT 0x1 /* event on receive buffer */ 129 #define NM_SEVENT 0x2 /* event on send buffer */ 130 131 /* 132 * User protocol requests messages. 133 */ 134 struct netmsg_pru_abort { 135 struct netmsg_base base; 136 }; 137 138 struct netmsg_pru_accept { 139 struct netmsg_base base; 140 struct sockaddr **nm_nam; 141 }; 142 143 struct netmsg_pru_attach { 144 struct netmsg_base base; 145 int nm_proto; 146 struct pru_attach_info *nm_ai; 147 }; 148 149 struct netmsg_pru_bind { 150 struct netmsg_base base; 151 struct sockaddr *nm_nam; 152 struct thread *nm_td; 153 int nm_flags; /* PRUB_ */ 154 }; 155 156 #define PRUB_RELINK 0x0001 157 158 struct netmsg_pru_connect { 159 struct netmsg_base base; 160 struct sockaddr *nm_nam; 161 struct thread *nm_td; 162 struct mbuf *nm_m; /* connect with send */ 163 int nm_sndflags; /* connect with send, PRUS_ */ 164 int nm_flags; /* message control */ 165 }; 166 167 #define PRUC_RECONNECT 0x0001 /* thread port change */ 168 #define PRUC_PUSH 0x0004 /* call tcp_output */ 169 #define PRUC_ASYNC 0x0010 170 #define PRUC_HELDTD 0x0020 171 #define PRUC_HASLADDR 0x0040 172 173 struct netmsg_pru_connect2 { 174 struct netmsg_base base; 175 struct socket *nm_so1; 176 struct socket *nm_so2; 177 struct ucred *nm_cred; 178 }; 179 180 struct netmsg_pru_control { 181 struct netmsg_base base; 182 u_long nm_cmd; 183 caddr_t nm_data; 184 struct ifnet *nm_ifp; 185 struct thread *nm_td; 186 }; 187 188 struct netmsg_pru_detach { 189 struct netmsg_base base; 190 }; 191 192 struct netmsg_pru_disconnect { 193 struct netmsg_base base; 194 }; 195 196 struct netmsg_pru_listen { 197 struct netmsg_base base; 198 struct thread *nm_td; 199 int nm_flags; /* PRUL_xxx */ 200 }; 201 202 #define PRUL_RELINK 0x1 203 204 struct netmsg_pru_peeraddr { 205 struct netmsg_base base; 206 struct sockaddr **nm_nam; 207 }; 208 209 struct netmsg_pru_rcvd { 210 struct netmsg_base base; 211 int nm_flags; 212 int nm_pru_flags; /* PRUR_xxx */ 213 }; 214 215 #define PRUR_ASYNC 0x1 216 #define PRUR_DEAD 0x2 217 218 struct netmsg_pru_rcvoob { 219 struct netmsg_base base; 220 struct mbuf *nm_m; 221 int nm_flags; 222 }; 223 224 struct netmsg_pru_send { 225 struct netmsg_base base; 226 int nm_flags; /* PRUS_xxx */ 227 int nm_priv; /* proto priv. */ 228 struct mbuf *nm_m; 229 struct sockaddr *nm_addr; 230 struct mbuf *nm_control; 231 struct thread *nm_td; 232 }; 233 234 #define PRUS_OOB 0x1 235 #define PRUS_EOF 0x2 236 #define PRUS_MORETOCOME 0x4 237 #define PRUS_NAMALLOC 0x8 238 #define PRUS_NOREPLY 0x10 239 #define PRUS_DONTROUTE 0x20 240 #define PRUS_FREEADDR 0x40 241 #define PRUS_HELDTD 0x80 242 243 struct netmsg_pru_sense { 244 struct netmsg_base base; 245 struct stat *nm_stat; 246 }; 247 248 struct netmsg_pru_shutdown { 249 struct netmsg_base base; 250 }; 251 252 struct netmsg_pru_sockaddr { 253 struct netmsg_base base; 254 struct sockaddr **nm_nam; 255 }; 256 257 struct netmsg_pru_sosend { 258 struct netmsg_base base; 259 struct sockaddr *nm_addr; 260 struct uio *nm_uio; 261 struct mbuf *nm_top; 262 struct mbuf *nm_control; 263 int nm_flags; 264 struct thread *nm_td; 265 }; 266 267 struct netmsg_pru_soreceive { 268 struct netmsg_base base; 269 struct sockaddr *nm_addr; 270 struct sockaddr **nm_paddr; 271 struct uio *nm_uio; 272 struct sockbuf *nm_sio; 273 struct mbuf **nm_controlp; 274 int *nm_flagsp; 275 }; 276 277 struct netmsg_pr_ctloutput { 278 struct netmsg_base base; 279 int nm_flags; /* PRCO_xx */ 280 struct sockopt *nm_sopt; 281 }; 282 283 #define PRCO_HELDTD 0x1 284 285 struct netmsg_pr_ctlinput { 286 struct netmsg_base base; 287 int nm_cmd; 288 int nm_direct; 289 struct sockaddr *nm_arg; 290 void *nm_extra; 291 }; 292 293 /* 294 * Union of all possible netmsgs. Note that when a netmsg is sent the 295 * actual allocated storage is likely only the size of the particular 296 * class of message, and not sizeof(union netmsg). 297 */ 298 union netmsg { 299 struct lwkt_msg lmsg; /* base embedded */ 300 struct netmsg_base base; /* base embedded */ 301 302 struct netmsg_packet packet; /* mbuf embedded */ 303 struct netmsg_pr_timeout timeout; 304 struct netmsg_so_notify notify; 305 struct netmsg_so_notify_abort notify_abort; 306 307 struct netmsg_pr_ctloutput ctloutput; 308 struct netmsg_pr_ctlinput ctlinput; 309 310 struct netmsg_pru_abort abort; 311 struct netmsg_pru_accept accept; /* synchronous */ 312 struct netmsg_pru_attach attach; 313 struct netmsg_pru_bind bind; 314 struct netmsg_pru_connect connect; 315 struct netmsg_pru_connect2 connect2; 316 struct netmsg_pru_control control; /* synchronous */ 317 struct netmsg_pru_detach detach; 318 struct netmsg_pru_disconnect disconnect; 319 struct netmsg_pru_listen listen; 320 struct netmsg_pru_peeraddr peeraddr; 321 struct netmsg_pru_rcvd rcvd; 322 struct netmsg_pru_rcvoob rcvoob; 323 struct netmsg_pru_send send; 324 struct netmsg_pru_sense sense; 325 struct netmsg_pru_shutdown shutdown; 326 struct netmsg_pru_sockaddr sockaddr; 327 struct netmsg_pru_sosend sosend; /* synchronous */ 328 struct netmsg_pru_soreceive soreceive; /* synchronous */ 329 }; 330 331 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 332 333 #endif /* !_NET_NETMSG_H_ */ 334