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_NAMALLOC 0x0002 /* nm_nam allocated */ 158 #define PRUC_PUSH 0x0004 /* call tcp_output */ 159 #define PRUC_FALLBACK 0x0008 /* fallback to ipv4 */ 160 #define PRUC_ASYNC 0x0010 161 #define PRUC_HELDTD 0x0020 162 #define PRUC_HASLADDR 0x0040 163 164 struct netmsg_pru_connect2 { 165 struct netmsg_base base; 166 struct socket *nm_so1; 167 struct socket *nm_so2; 168 }; 169 170 struct netmsg_pru_control { 171 struct netmsg_base base; 172 u_long nm_cmd; 173 caddr_t nm_data; 174 struct ifnet *nm_ifp; 175 struct thread *nm_td; 176 }; 177 178 struct netmsg_pru_detach { 179 struct netmsg_base base; 180 }; 181 182 struct netmsg_pru_disconnect { 183 struct netmsg_base base; 184 }; 185 186 struct netmsg_pru_listen { 187 struct netmsg_base base; 188 struct thread *nm_td; 189 int nm_flags; /* PRUL_xxx */ 190 }; 191 192 #define PRUL_RELINK 0x1 193 194 struct netmsg_pru_peeraddr { 195 struct netmsg_base base; 196 struct sockaddr **nm_nam; 197 }; 198 199 struct netmsg_pru_rcvd { 200 struct netmsg_base base; 201 int nm_flags; 202 int nm_pru_flags; /* PRUR_xxx */ 203 }; 204 205 #define PRUR_ASYNC 0x1 206 #define PRUR_DEAD 0x2 207 208 struct netmsg_pru_rcvoob { 209 struct netmsg_base base; 210 struct mbuf *nm_m; 211 int nm_flags; 212 }; 213 214 struct netmsg_pru_send { 215 struct netmsg_base base; 216 int nm_flags; /* PRUS_xxx */ 217 int nm_priv; /* proto priv. */ 218 struct mbuf *nm_m; 219 struct sockaddr *nm_addr; 220 struct mbuf *nm_control; 221 struct thread *nm_td; 222 }; 223 224 #define PRUS_OOB 0x1 225 #define PRUS_EOF 0x2 226 #define PRUS_MORETOCOME 0x4 227 #define PRUS_NAMALLOC 0x8 228 #define PRUS_NOREPLY 0x10 229 #define PRUS_DONTROUTE 0x20 230 #define PRUS_FREEADDR 0x40 231 #define PRUS_HELDTD 0x80 232 233 struct netmsg_pru_sense { 234 struct netmsg_base base; 235 struct stat *nm_stat; 236 }; 237 238 struct netmsg_pru_shutdown { 239 struct netmsg_base base; 240 }; 241 242 struct netmsg_pru_sockaddr { 243 struct netmsg_base base; 244 struct sockaddr **nm_nam; 245 }; 246 247 struct netmsg_pru_sosend { 248 struct netmsg_base base; 249 struct sockaddr *nm_addr; 250 struct uio *nm_uio; 251 struct mbuf *nm_top; 252 struct mbuf *nm_control; 253 int nm_flags; 254 struct thread *nm_td; 255 }; 256 257 struct netmsg_pru_soreceive { 258 struct netmsg_base base; 259 struct sockaddr *nm_addr; 260 struct sockaddr **nm_paddr; 261 struct uio *nm_uio; 262 struct sockbuf *nm_sio; 263 struct mbuf **nm_controlp; 264 int *nm_flagsp; 265 }; 266 267 struct netmsg_pr_ctloutput { 268 struct netmsg_base base; 269 struct sockopt *nm_sopt; 270 }; 271 272 struct netmsg_pr_ctlinput { 273 struct netmsg_base base; 274 int nm_cmd; 275 int nm_direct; 276 struct sockaddr *nm_arg; 277 void *nm_extra; 278 }; 279 280 /* 281 * Union of all possible netmsgs. Note that when a netmsg is sent the 282 * actual allocated storage is likely only the size of the particular 283 * class of message, and not sizeof(union netmsg). 284 */ 285 union netmsg { 286 struct lwkt_msg lmsg; /* base embedded */ 287 struct netmsg_base base; /* base embedded */ 288 289 struct netmsg_packet packet; /* mbuf embedded */ 290 struct netmsg_pr_timeout timeout; 291 struct netmsg_so_notify notify; 292 struct netmsg_so_notify_abort notify_abort; 293 294 struct netmsg_pr_ctloutput ctloutput; 295 struct netmsg_pr_ctlinput ctlinput; 296 297 struct netmsg_pru_abort abort; 298 struct netmsg_pru_accept accept; /* synchronous */ 299 struct netmsg_pru_attach attach; 300 struct netmsg_pru_bind bind; 301 struct netmsg_pru_connect connect; 302 struct netmsg_pru_connect2 connect2; 303 struct netmsg_pru_control control; /* synchronous */ 304 struct netmsg_pru_detach detach; 305 struct netmsg_pru_disconnect disconnect; 306 struct netmsg_pru_listen listen; 307 struct netmsg_pru_peeraddr peeraddr; 308 struct netmsg_pru_rcvd rcvd; 309 struct netmsg_pru_rcvoob rcvoob; 310 struct netmsg_pru_send send; 311 struct netmsg_pru_sense sense; 312 struct netmsg_pru_shutdown shutdown; 313 struct netmsg_pru_sockaddr sockaddr; 314 struct netmsg_pru_sosend sosend; /* synchronous */ 315 struct netmsg_pru_soreceive soreceive; /* synchronous */ 316 }; 317 318 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 319 320 #endif /* !_NET_NETMSG_H_ */ 321