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 }; 146 147 struct netmsg_pru_connect { 148 struct netmsg_base base; 149 struct sockaddr *nm_nam; 150 struct thread *nm_td; 151 struct mbuf *nm_m; /* connect with send */ 152 int nm_sndflags; /* connect with send, PRUS_ */ 153 int nm_flags; /* message control */ 154 }; 155 156 #define PRUC_RECONNECT 0x0001 /* thread port change */ 157 #define PRUC_PUSH 0x0004 /* call tcp_output */ 158 #define PRUC_ASYNC 0x0010 159 #define PRUC_HELDTD 0x0020 160 #define PRUC_HASLADDR 0x0040 161 162 struct netmsg_pru_connect2 { 163 struct netmsg_base base; 164 struct socket *nm_so1; 165 struct socket *nm_so2; 166 }; 167 168 struct netmsg_pru_control { 169 struct netmsg_base base; 170 u_long nm_cmd; 171 caddr_t nm_data; 172 struct ifnet *nm_ifp; 173 struct thread *nm_td; 174 }; 175 176 struct netmsg_pru_detach { 177 struct netmsg_base base; 178 }; 179 180 struct netmsg_pru_disconnect { 181 struct netmsg_base base; 182 }; 183 184 struct netmsg_pru_listen { 185 struct netmsg_base base; 186 struct thread *nm_td; 187 int nm_flags; /* PRUL_xxx */ 188 }; 189 190 #define PRUL_RELINK 0x1 191 192 struct netmsg_pru_peeraddr { 193 struct netmsg_base base; 194 struct sockaddr **nm_nam; 195 }; 196 197 struct netmsg_pru_rcvd { 198 struct netmsg_base base; 199 int nm_flags; 200 int nm_pru_flags; /* PRUR_xxx */ 201 }; 202 203 #define PRUR_ASYNC 0x1 204 #define PRUR_DEAD 0x2 205 206 struct netmsg_pru_rcvoob { 207 struct netmsg_base base; 208 struct mbuf *nm_m; 209 int nm_flags; 210 }; 211 212 struct netmsg_pru_send { 213 struct netmsg_base base; 214 int nm_flags; /* PRUS_xxx */ 215 int nm_priv; /* proto priv. */ 216 struct mbuf *nm_m; 217 struct sockaddr *nm_addr; 218 struct mbuf *nm_control; 219 struct thread *nm_td; 220 }; 221 222 #define PRUS_OOB 0x1 223 #define PRUS_EOF 0x2 224 #define PRUS_MORETOCOME 0x4 225 #define PRUS_NAMALLOC 0x8 226 #define PRUS_NOREPLY 0x10 227 #define PRUS_DONTROUTE 0x20 228 #define PRUS_FREEADDR 0x40 229 #define PRUS_HELDTD 0x80 230 231 struct netmsg_pru_sense { 232 struct netmsg_base base; 233 struct stat *nm_stat; 234 }; 235 236 struct netmsg_pru_shutdown { 237 struct netmsg_base base; 238 }; 239 240 struct netmsg_pru_sockaddr { 241 struct netmsg_base base; 242 struct sockaddr **nm_nam; 243 }; 244 245 struct netmsg_pru_sosend { 246 struct netmsg_base base; 247 struct sockaddr *nm_addr; 248 struct uio *nm_uio; 249 struct mbuf *nm_top; 250 struct mbuf *nm_control; 251 int nm_flags; 252 struct thread *nm_td; 253 }; 254 255 struct netmsg_pru_soreceive { 256 struct netmsg_base base; 257 struct sockaddr *nm_addr; 258 struct sockaddr **nm_paddr; 259 struct uio *nm_uio; 260 struct sockbuf *nm_sio; 261 struct mbuf **nm_controlp; 262 int *nm_flagsp; 263 }; 264 265 struct netmsg_pr_ctloutput { 266 struct netmsg_base base; 267 struct sockopt *nm_sopt; 268 }; 269 270 struct netmsg_pr_ctlinput { 271 struct netmsg_base base; 272 int nm_cmd; 273 int nm_direct; 274 struct sockaddr *nm_arg; 275 void *nm_extra; 276 }; 277 278 /* 279 * Union of all possible netmsgs. Note that when a netmsg is sent the 280 * actual allocated storage is likely only the size of the particular 281 * class of message, and not sizeof(union netmsg). 282 */ 283 union netmsg { 284 struct lwkt_msg lmsg; /* base embedded */ 285 struct netmsg_base base; /* base embedded */ 286 287 struct netmsg_packet packet; /* mbuf embedded */ 288 struct netmsg_pr_timeout timeout; 289 struct netmsg_so_notify notify; 290 struct netmsg_so_notify_abort notify_abort; 291 292 struct netmsg_pr_ctloutput ctloutput; 293 struct netmsg_pr_ctlinput ctlinput; 294 295 struct netmsg_pru_abort abort; 296 struct netmsg_pru_accept accept; /* synchronous */ 297 struct netmsg_pru_attach attach; 298 struct netmsg_pru_bind bind; 299 struct netmsg_pru_connect connect; 300 struct netmsg_pru_connect2 connect2; 301 struct netmsg_pru_control control; /* synchronous */ 302 struct netmsg_pru_detach detach; 303 struct netmsg_pru_disconnect disconnect; 304 struct netmsg_pru_listen listen; 305 struct netmsg_pru_peeraddr peeraddr; 306 struct netmsg_pru_rcvd rcvd; 307 struct netmsg_pru_rcvoob rcvoob; 308 struct netmsg_pru_send send; 309 struct netmsg_pru_sense sense; 310 struct netmsg_pru_shutdown shutdown; 311 struct netmsg_pru_sockaddr sockaddr; 312 struct netmsg_pru_sosend sosend; /* synchronous */ 313 struct netmsg_pru_soreceive soreceive; /* synchronous */ 314 }; 315 316 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 317 318 #endif /* !_NET_NETMSG_H_ */ 319