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 */ 75 TAILQ_HEAD(notifymsglist, netmsg_so_notify); 76 77 struct netmsg_packet { 78 struct netmsg_base base; 79 struct mbuf *nm_packet; 80 int nm_nxt; 81 }; 82 83 struct netmsg_inarp { 84 struct netmsg_base base; 85 struct mbuf *m; 86 in_addr_t saddr; 87 in_addr_t taddr; 88 in_addr_t myaddr; 89 }; 90 91 struct netmsg_pr_timeout { 92 struct netmsg_base base; 93 }; 94 95 struct netmsg_so_notify; 96 typedef __boolean_t (*msg_predicate_fn_t)(struct netmsg_so_notify *); 97 98 struct netmsg_so_notify { 99 struct netmsg_base base; 100 msg_predicate_fn_t nm_predicate; 101 int nm_fflags; /* flags e.g. FNONBLOCK */ 102 int nm_etype; /* receive or send event */ 103 TAILQ_ENTRY(netmsg_so_notify) nm_list; 104 }; 105 106 struct netmsg_so_notify_abort { 107 struct netmsg_base base; 108 struct netmsg_so_notify *nm_notifymsg; 109 }; 110 111 #define NM_REVENT 0x1 /* event on receive buffer */ 112 #define NM_SEVENT 0x2 /* event on send buffer */ 113 114 /* 115 * User protocol requests messages. 116 */ 117 struct netmsg_pru_abort { 118 struct netmsg_base base; 119 }; 120 121 struct netmsg_pru_accept { 122 struct netmsg_base base; 123 struct sockaddr **nm_nam; 124 }; 125 126 struct netmsg_pru_attach { 127 struct netmsg_base base; 128 int nm_proto; 129 struct pru_attach_info *nm_ai; 130 }; 131 132 struct netmsg_pru_bind { 133 struct netmsg_base base; 134 struct sockaddr *nm_nam; 135 struct thread *nm_td; 136 }; 137 138 struct netmsg_pru_connect { 139 struct netmsg_base base; 140 struct sockaddr *nm_nam; 141 struct thread *nm_td; 142 struct mbuf *nm_m; /* connect with send */ 143 int nm_sndflags; /* connect with send, PRUS_ */ 144 int nm_flags; /* message control */ 145 }; 146 147 #define PRUC_RECONNECT 0x0001 /* thread port change */ 148 #define PRUC_NAMALLOC 0x0002 /* nm_nam allocated */ 149 #define PRUC_PUSH 0x0004 /* call tcp_output */ 150 #define PRUC_FALLBACK 0x0008 /* fallback to ipv4 */ 151 #define PRUC_ASYNC 0x0010 152 #define PRUC_HELDTD 0x0020 153 #define PRUC_HASLADDR 0x0040 154 155 struct netmsg_pru_connect2 { 156 struct netmsg_base base; 157 struct socket *nm_so1; 158 struct socket *nm_so2; 159 }; 160 161 struct netmsg_pru_control { 162 struct netmsg_base base; 163 u_long nm_cmd; 164 caddr_t nm_data; 165 struct ifnet *nm_ifp; 166 struct thread *nm_td; 167 }; 168 169 struct netmsg_pru_detach { 170 struct netmsg_base base; 171 }; 172 173 struct netmsg_pru_disconnect { 174 struct netmsg_base base; 175 }; 176 177 struct netmsg_pru_listen { 178 struct netmsg_base base; 179 struct thread *nm_td; 180 int nm_flags; /* PRUL_xxx */ 181 }; 182 183 #define PRUL_RELINK 0x1 184 185 struct netmsg_pru_peeraddr { 186 struct netmsg_base base; 187 struct sockaddr **nm_nam; 188 }; 189 190 struct netmsg_pru_rcvd { 191 struct netmsg_base base; 192 int nm_flags; 193 int nm_pru_flags; /* PRUR_xxx */ 194 }; 195 196 #define PRUR_ASYNC 0x1 197 #define PRUR_DEAD 0x2 198 199 struct netmsg_pru_rcvoob { 200 struct netmsg_base base; 201 struct mbuf *nm_m; 202 int nm_flags; 203 }; 204 205 struct netmsg_pru_send { 206 struct netmsg_base base; 207 int nm_flags; /* PRUS_xxx */ 208 int nm_priv; /* proto priv. */ 209 struct mbuf *nm_m; 210 struct sockaddr *nm_addr; 211 struct mbuf *nm_control; 212 struct thread *nm_td; 213 }; 214 215 #define PRUS_OOB 0x1 216 #define PRUS_EOF 0x2 217 #define PRUS_MORETOCOME 0x4 218 #define PRUS_NAMALLOC 0x8 219 #define PRUS_NOREPLY 0x10 220 #define PRUS_DONTROUTE 0x20 221 #define PRUS_FREEADDR 0x40 222 #define PRUS_HELDTD 0x80 223 224 struct netmsg_pru_sense { 225 struct netmsg_base base; 226 struct stat *nm_stat; 227 }; 228 229 struct netmsg_pru_shutdown { 230 struct netmsg_base base; 231 }; 232 233 struct netmsg_pru_sockaddr { 234 struct netmsg_base base; 235 struct sockaddr **nm_nam; 236 }; 237 238 struct netmsg_pru_sosend { 239 struct netmsg_base base; 240 struct sockaddr *nm_addr; 241 struct uio *nm_uio; 242 struct mbuf *nm_top; 243 struct mbuf *nm_control; 244 int nm_flags; 245 struct thread *nm_td; 246 }; 247 248 struct netmsg_pru_soreceive { 249 struct netmsg_base base; 250 struct sockaddr *nm_addr; 251 struct sockaddr **nm_paddr; 252 struct uio *nm_uio; 253 struct sockbuf *nm_sio; 254 struct mbuf **nm_controlp; 255 int *nm_flagsp; 256 }; 257 258 struct netmsg_pr_ctloutput { 259 struct netmsg_base base; 260 struct sockopt *nm_sopt; 261 }; 262 263 struct netmsg_pru_ctlinput { 264 struct netmsg_base base; 265 int nm_cmd; 266 struct sockaddr *nm_arg; 267 void *nm_extra; 268 }; 269 270 /* 271 * Union of all possible netmsgs. Note that when a netmsg is sent the 272 * actual allocated storage is likely only the size of the particular 273 * class of message, and not sizeof(union netmsg). 274 */ 275 union netmsg { 276 struct lwkt_msg lmsg; /* base embedded */ 277 struct netmsg_base base; /* base embedded */ 278 279 struct netmsg_packet packet; /* mbuf embedded */ 280 struct netmsg_pr_timeout timeout; 281 struct netmsg_so_notify notify; 282 struct netmsg_so_notify_abort notify_abort; 283 284 struct netmsg_pr_ctloutput ctloutput; 285 286 struct netmsg_pru_abort abort; 287 struct netmsg_pru_accept accept; /* synchronous */ 288 struct netmsg_pru_attach attach; 289 struct netmsg_pru_bind bind; 290 struct netmsg_pru_connect connect; 291 struct netmsg_pru_connect2 connect2; 292 struct netmsg_pru_control control; /* synchronous */ 293 struct netmsg_pru_detach detach; 294 struct netmsg_pru_disconnect disconnect; 295 struct netmsg_pru_listen listen; 296 struct netmsg_pru_peeraddr peeraddr; 297 struct netmsg_pru_rcvd rcvd; 298 struct netmsg_pru_rcvoob rcvoob; 299 struct netmsg_pru_send send; 300 struct netmsg_pru_sense sense; 301 struct netmsg_pru_shutdown shutdown; 302 struct netmsg_pru_sockaddr sockaddr; 303 struct netmsg_pru_sosend sosend; /* synchronous */ 304 struct netmsg_pru_soreceive soreceive; /* synchronous */ 305 struct netmsg_pru_ctlinput ctlinput; 306 }; 307 308 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 309 310 #endif /* !_NET_NETMSG_H_ */ 311