sockin.c revision 1.15.2.3
1 1.15.2.3 yamt /* $NetBSD: sockin.c,v 1.15.2.3 2009/09/16 13:38:06 yamt Exp $ */ 2 1.15.2.2 yamt 3 1.15.2.2 yamt /* 4 1.15.2.2 yamt * Copyright (c) 2008, 2009 Antti Kantee. All Rights Reserved. 5 1.15.2.2 yamt * 6 1.15.2.2 yamt * Redistribution and use in source and binary forms, with or without 7 1.15.2.2 yamt * modification, are permitted provided that the following conditions 8 1.15.2.2 yamt * are met: 9 1.15.2.2 yamt * 1. Redistributions of source code must retain the above copyright 10 1.15.2.2 yamt * notice, this list of conditions and the following disclaimer. 11 1.15.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 12 1.15.2.2 yamt * notice, this list of conditions and the following disclaimer in the 13 1.15.2.2 yamt * documentation and/or other materials provided with the distribution. 14 1.15.2.2 yamt * 15 1.15.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 1.15.2.2 yamt * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 1.15.2.2 yamt * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 1.15.2.2 yamt * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 1.15.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 1.15.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 1.15.2.2 yamt * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.15.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 1.15.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.15.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.15.2.2 yamt * SUCH DAMAGE. 26 1.15.2.2 yamt */ 27 1.15.2.2 yamt 28 1.15.2.2 yamt #include <sys/cdefs.h> 29 1.15.2.3 yamt __KERNEL_RCSID(0, "$NetBSD: sockin.c,v 1.15.2.3 2009/09/16 13:38:06 yamt Exp $"); 30 1.15.2.2 yamt 31 1.15.2.2 yamt #include <sys/param.h> 32 1.15.2.2 yamt #include <sys/condvar.h> 33 1.15.2.2 yamt #include <sys/domain.h> 34 1.15.2.2 yamt #include <sys/kmem.h> 35 1.15.2.2 yamt #include <sys/kthread.h> 36 1.15.2.2 yamt #include <sys/mbuf.h> 37 1.15.2.2 yamt #include <sys/mutex.h> 38 1.15.2.2 yamt #include <sys/poll.h> 39 1.15.2.2 yamt #include <sys/protosw.h> 40 1.15.2.2 yamt #include <sys/queue.h> 41 1.15.2.2 yamt #include <sys/socket.h> 42 1.15.2.2 yamt #include <sys/socketvar.h> 43 1.15.2.2 yamt #include <sys/time.h> 44 1.15.2.2 yamt 45 1.15.2.2 yamt #include <net/radix.h> 46 1.15.2.2 yamt 47 1.15.2.2 yamt #include <netinet/in.h> 48 1.15.2.2 yamt #include <netinet/in_systm.h> 49 1.15.2.2 yamt #include <netinet/ip.h> 50 1.15.2.2 yamt 51 1.15.2.2 yamt #include <rump/rumpuser.h> 52 1.15.2.2 yamt 53 1.15.2.2 yamt #include "rump_private.h" 54 1.15.2.2 yamt 55 1.15.2.2 yamt /* 56 1.15.2.2 yamt * An inet communication domain which uses the socket interface. 57 1.15.2.2 yamt * Currently supports only IPv4 UDP, but could easily be extended to 58 1.15.2.2 yamt * support IPv6 and TCP by adding more stuff to the protosw. 59 1.15.2.2 yamt */ 60 1.15.2.2 yamt 61 1.15.2.2 yamt DOMAIN_DEFINE(sockindomain); 62 1.15.2.2 yamt 63 1.15.2.2 yamt static void sockin_init(void); 64 1.15.2.2 yamt static int sockin_usrreq(struct socket *, int, struct mbuf *, 65 1.15.2.2 yamt struct mbuf *, struct mbuf *, struct lwp *); 66 1.15.2.2 yamt static int sockin_ctloutput(int op, struct socket *, struct sockopt *); 67 1.15.2.2 yamt 68 1.15.2.2 yamt const struct protosw sockinsw[] = { 69 1.15.2.2 yamt { 70 1.15.2.2 yamt .pr_type = SOCK_DGRAM, 71 1.15.2.2 yamt .pr_domain = &sockindomain, 72 1.15.2.2 yamt .pr_protocol = IPPROTO_UDP, 73 1.15.2.2 yamt .pr_flags = PR_ATOMIC|PR_ADDR, 74 1.15.2.2 yamt .pr_usrreq = sockin_usrreq, 75 1.15.2.2 yamt .pr_ctloutput = sockin_ctloutput, 76 1.15.2.2 yamt }, 77 1.15.2.2 yamt { 78 1.15.2.2 yamt .pr_type = SOCK_STREAM, 79 1.15.2.2 yamt .pr_domain = &sockindomain, 80 1.15.2.2 yamt .pr_protocol = IPPROTO_TCP, 81 1.15.2.2 yamt .pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS, 82 1.15.2.2 yamt .pr_usrreq = sockin_usrreq, 83 1.15.2.2 yamt .pr_ctloutput = sockin_ctloutput, 84 1.15.2.2 yamt }}; 85 1.15.2.2 yamt 86 1.15.2.2 yamt struct domain sockindomain = { 87 1.15.2.2 yamt .dom_family = PF_INET, 88 1.15.2.2 yamt .dom_name = "socket_inet", 89 1.15.2.2 yamt .dom_init = sockin_init, 90 1.15.2.2 yamt .dom_externalize = NULL, 91 1.15.2.2 yamt .dom_dispose = NULL, 92 1.15.2.2 yamt .dom_protosw = sockinsw, 93 1.15.2.2 yamt .dom_protoswNPROTOSW = &sockinsw[__arraycount(sockinsw)], 94 1.15.2.2 yamt .dom_rtattach = rn_inithead, 95 1.15.2.2 yamt .dom_rtoffset = 32, 96 1.15.2.2 yamt .dom_maxrtkey = sizeof(struct sockaddr_in), 97 1.15.2.2 yamt .dom_ifattach = NULL, 98 1.15.2.2 yamt .dom_ifdetach = NULL, 99 1.15.2.2 yamt .dom_ifqueues = { NULL }, 100 1.15.2.2 yamt .dom_link = { NULL }, 101 1.15.2.2 yamt .dom_mowner = MOWNER_INIT("",""), 102 1.15.2.2 yamt .dom_rtcache = { NULL }, 103 1.15.2.2 yamt .dom_sockaddr_cmp = NULL 104 1.15.2.2 yamt }; 105 1.15.2.2 yamt 106 1.15.2.2 yamt #define SO2S(so) ((intptr_t)(so->so_internal)) 107 1.15.2.2 yamt #define SOCKIN_SBSIZE 65536 108 1.15.2.2 yamt 109 1.15.2.2 yamt struct sockin_unit { 110 1.15.2.2 yamt struct socket *su_so; 111 1.15.2.2 yamt 112 1.15.2.2 yamt LIST_ENTRY(sockin_unit) su_entries; 113 1.15.2.2 yamt }; 114 1.15.2.2 yamt static LIST_HEAD(, sockin_unit) su_ent = LIST_HEAD_INITIALIZER(su_ent); 115 1.15.2.2 yamt static kmutex_t su_mtx; 116 1.15.2.2 yamt static bool rebuild; 117 1.15.2.2 yamt static int nsock; 118 1.15.2.2 yamt 119 1.15.2.2 yamt static int 120 1.15.2.2 yamt registersock(struct socket *so, int news) 121 1.15.2.2 yamt { 122 1.15.2.2 yamt struct sockin_unit *su; 123 1.15.2.2 yamt 124 1.15.2.2 yamt su = kmem_alloc(sizeof(*su), KM_NOSLEEP); 125 1.15.2.2 yamt if (!su) 126 1.15.2.2 yamt return ENOMEM; 127 1.15.2.2 yamt 128 1.15.2.2 yamt so->so_internal = (void *)(intptr_t)news; 129 1.15.2.2 yamt su->su_so = so; 130 1.15.2.2 yamt 131 1.15.2.2 yamt mutex_enter(&su_mtx); 132 1.15.2.2 yamt LIST_INSERT_HEAD(&su_ent, su, su_entries); 133 1.15.2.2 yamt nsock++; 134 1.15.2.2 yamt rebuild = true; 135 1.15.2.2 yamt mutex_exit(&su_mtx); 136 1.15.2.2 yamt 137 1.15.2.2 yamt return 0; 138 1.15.2.2 yamt } 139 1.15.2.2 yamt 140 1.15.2.2 yamt static void 141 1.15.2.2 yamt removesock(struct socket *so) 142 1.15.2.2 yamt { 143 1.15.2.2 yamt struct sockin_unit *su_iter; 144 1.15.2.2 yamt int error; 145 1.15.2.2 yamt 146 1.15.2.2 yamt mutex_enter(&su_mtx); 147 1.15.2.2 yamt LIST_FOREACH(su_iter, &su_ent, su_entries) { 148 1.15.2.2 yamt if (su_iter->su_so == so) 149 1.15.2.2 yamt break; 150 1.15.2.2 yamt } 151 1.15.2.2 yamt if (!su_iter) 152 1.15.2.2 yamt panic("no such socket"); 153 1.15.2.2 yamt 154 1.15.2.2 yamt LIST_REMOVE(su_iter, su_entries); 155 1.15.2.2 yamt nsock--; 156 1.15.2.2 yamt rebuild = true; 157 1.15.2.2 yamt mutex_exit(&su_mtx); 158 1.15.2.2 yamt 159 1.15.2.2 yamt rumpuser_close(SO2S(su_iter->su_so), &error); 160 1.15.2.2 yamt kmem_free(su_iter, sizeof(*su_iter)); 161 1.15.2.2 yamt } 162 1.15.2.2 yamt 163 1.15.2.2 yamt static void 164 1.15.2.2 yamt sockin_process(struct socket *so) 165 1.15.2.2 yamt { 166 1.15.2.2 yamt struct sockaddr_in from; 167 1.15.2.2 yamt struct iovec io; 168 1.15.2.2 yamt struct msghdr rmsg; 169 1.15.2.2 yamt struct mbuf *m; 170 1.15.2.2 yamt ssize_t n; 171 1.15.2.2 yamt size_t plen; 172 1.15.2.2 yamt int error; 173 1.15.2.2 yamt 174 1.15.2.2 yamt m = m_gethdr(M_WAIT, MT_DATA); 175 1.15.2.2 yamt if (so->so_proto->pr_type == SOCK_DGRAM) { 176 1.15.2.2 yamt plen = IP_MAXPACKET; 177 1.15.2.2 yamt MEXTMALLOC(m, plen, M_DONTWAIT); 178 1.15.2.2 yamt } else { 179 1.15.2.2 yamt plen = MCLBYTES; 180 1.15.2.2 yamt MCLGET(m, M_DONTWAIT); 181 1.15.2.2 yamt } 182 1.15.2.2 yamt if ((m->m_flags & M_EXT) == 0) { 183 1.15.2.2 yamt m_freem(m); 184 1.15.2.2 yamt return; 185 1.15.2.2 yamt } 186 1.15.2.2 yamt 187 1.15.2.2 yamt memset(&rmsg, 0, sizeof(rmsg)); 188 1.15.2.2 yamt io.iov_base = mtod(m, void *); 189 1.15.2.2 yamt io.iov_len = plen; 190 1.15.2.2 yamt rmsg.msg_iov = &io; 191 1.15.2.2 yamt rmsg.msg_iovlen = 1; 192 1.15.2.2 yamt rmsg.msg_name = (struct sockaddr *)&from; 193 1.15.2.2 yamt rmsg.msg_namelen = sizeof(from); 194 1.15.2.2 yamt 195 1.15.2.2 yamt n = rumpuser_net_recvmsg(SO2S(so), &rmsg, 0, &error); 196 1.15.2.2 yamt if (n <= 0) { 197 1.15.2.2 yamt m_freem(m); 198 1.15.2.2 yamt 199 1.15.2.2 yamt /* Treat a TCP socket a goner */ 200 1.15.2.3 yamt if (error != EAGAIN && so->so_proto->pr_type == SOCK_STREAM) { 201 1.15.2.2 yamt mutex_enter(softnet_lock); 202 1.15.2.2 yamt soisdisconnected(so); 203 1.15.2.2 yamt mutex_exit(softnet_lock); 204 1.15.2.2 yamt removesock(so); 205 1.15.2.2 yamt } 206 1.15.2.2 yamt return; 207 1.15.2.2 yamt } 208 1.15.2.2 yamt m->m_len = m->m_pkthdr.len = n; 209 1.15.2.2 yamt 210 1.15.2.2 yamt mutex_enter(softnet_lock); 211 1.15.2.2 yamt if (so->so_proto->pr_type == SOCK_DGRAM) { 212 1.15.2.2 yamt if (!sbappendaddr(&so->so_rcv, rmsg.msg_name, m, NULL)) { 213 1.15.2.2 yamt m_freem(m); 214 1.15.2.2 yamt } 215 1.15.2.2 yamt } else { 216 1.15.2.2 yamt sbappendstream(&so->so_rcv, m); 217 1.15.2.2 yamt } 218 1.15.2.2 yamt 219 1.15.2.2 yamt sorwakeup(so); 220 1.15.2.2 yamt mutex_exit(softnet_lock); 221 1.15.2.2 yamt } 222 1.15.2.2 yamt 223 1.15.2.2 yamt static void 224 1.15.2.2 yamt sockin_accept(struct socket *so) 225 1.15.2.2 yamt { 226 1.15.2.2 yamt struct socket *nso; 227 1.15.2.2 yamt struct sockaddr_in sin; 228 1.15.2.2 yamt int news, error, slen; 229 1.15.2.2 yamt 230 1.15.2.2 yamt slen = sizeof(sin); 231 1.15.2.2 yamt news = rumpuser_net_accept(SO2S(so), (struct sockaddr *)&sin, 232 1.15.2.2 yamt &slen, &error); 233 1.15.2.2 yamt if (news == -1) 234 1.15.2.2 yamt return; 235 1.15.2.2 yamt 236 1.15.2.2 yamt mutex_enter(softnet_lock); 237 1.15.2.2 yamt nso = sonewconn(so, SS_ISCONNECTED); 238 1.15.2.2 yamt if (nso == NULL) 239 1.15.2.2 yamt goto errout; 240 1.15.2.2 yamt if (registersock(nso, news) != 0) 241 1.15.2.2 yamt goto errout; 242 1.15.2.2 yamt mutex_exit(softnet_lock); 243 1.15.2.2 yamt return; 244 1.15.2.2 yamt 245 1.15.2.2 yamt errout: 246 1.15.2.2 yamt rumpuser_close(news, &error); 247 1.15.2.2 yamt if (nso) 248 1.15.2.2 yamt soclose(nso); 249 1.15.2.2 yamt mutex_exit(softnet_lock); 250 1.15.2.2 yamt } 251 1.15.2.2 yamt 252 1.15.2.2 yamt #define POLLTIMEOUT 100 /* check for new entries every 100ms */ 253 1.15.2.2 yamt 254 1.15.2.2 yamt /* XXX: doesn't handle socket (kernel) locking properly? */ 255 1.15.2.2 yamt static void 256 1.15.2.2 yamt sockinworker(void *arg) 257 1.15.2.2 yamt { 258 1.15.2.2 yamt struct pollfd *pfds = NULL, *npfds; 259 1.15.2.2 yamt struct sockin_unit *su_iter; 260 1.15.2.2 yamt struct socket *so; 261 1.15.2.2 yamt int cursock = 0, i, rv, error; 262 1.15.2.2 yamt 263 1.15.2.2 yamt /* 264 1.15.2.2 yamt * Loop reading requests. Check for new sockets periodically 265 1.15.2.2 yamt * (could be smarter, but I'm lazy). 266 1.15.2.2 yamt */ 267 1.15.2.2 yamt for (;;) { 268 1.15.2.2 yamt if (rebuild) { 269 1.15.2.2 yamt npfds = NULL; 270 1.15.2.2 yamt mutex_enter(&su_mtx); 271 1.15.2.2 yamt if (nsock) 272 1.15.2.2 yamt npfds = kmem_alloc(nsock * sizeof(*npfds), 273 1.15.2.2 yamt KM_NOSLEEP); 274 1.15.2.2 yamt if (npfds || nsock == 0) { 275 1.15.2.2 yamt if (pfds) 276 1.15.2.2 yamt kmem_free(pfds, cursock*sizeof(*pfds)); 277 1.15.2.2 yamt pfds = npfds; 278 1.15.2.2 yamt cursock = nsock; 279 1.15.2.2 yamt rebuild = false; 280 1.15.2.2 yamt 281 1.15.2.2 yamt i = 0; 282 1.15.2.2 yamt LIST_FOREACH(su_iter, &su_ent, su_entries) { 283 1.15.2.2 yamt pfds[i].fd = SO2S(su_iter->su_so); 284 1.15.2.2 yamt pfds[i].events = POLLIN; 285 1.15.2.2 yamt pfds[i].revents = 0; 286 1.15.2.2 yamt i++; 287 1.15.2.2 yamt } 288 1.15.2.2 yamt KASSERT(i == nsock); 289 1.15.2.2 yamt } 290 1.15.2.2 yamt mutex_exit(&su_mtx); 291 1.15.2.2 yamt } 292 1.15.2.2 yamt 293 1.15.2.2 yamt /* find affected sockets & process */ 294 1.15.2.2 yamt rv = rumpuser_poll(pfds, cursock, POLLTIMEOUT, &error); 295 1.15.2.2 yamt for (i = 0; i < cursock && rv > 0; i++) { 296 1.15.2.2 yamt if (pfds[i].revents & POLLIN) { 297 1.15.2.2 yamt mutex_enter(&su_mtx); 298 1.15.2.2 yamt LIST_FOREACH(su_iter, &su_ent, su_entries) { 299 1.15.2.2 yamt if (SO2S(su_iter->su_so)==pfds[i].fd) { 300 1.15.2.2 yamt so = su_iter->su_so; 301 1.15.2.2 yamt mutex_exit(&su_mtx); 302 1.15.2.2 yamt if(so->so_options&SO_ACCEPTCONN) 303 1.15.2.2 yamt sockin_accept(so); 304 1.15.2.2 yamt else 305 1.15.2.2 yamt sockin_process(so); 306 1.15.2.2 yamt mutex_enter(&su_mtx); 307 1.15.2.2 yamt break; 308 1.15.2.2 yamt } 309 1.15.2.2 yamt } 310 1.15.2.2 yamt /* if we can't find it, just wing it */ 311 1.15.2.2 yamt KASSERT(rebuild || su_iter); 312 1.15.2.2 yamt mutex_exit(&su_mtx); 313 1.15.2.2 yamt pfds[i].revents = 0; 314 1.15.2.2 yamt rv--; 315 1.15.2.2 yamt i = -1; 316 1.15.2.2 yamt continue; 317 1.15.2.2 yamt } 318 1.15.2.2 yamt 319 1.15.2.2 yamt /* something else? ignore */ 320 1.15.2.2 yamt if (pfds[i].revents) { 321 1.15.2.2 yamt pfds[i].revents = 0; 322 1.15.2.2 yamt rv--; 323 1.15.2.2 yamt } 324 1.15.2.2 yamt } 325 1.15.2.2 yamt KASSERT(rv <= 0); 326 1.15.2.2 yamt } 327 1.15.2.2 yamt 328 1.15.2.2 yamt } 329 1.15.2.2 yamt 330 1.15.2.2 yamt static void 331 1.15.2.2 yamt sockin_init(void) 332 1.15.2.2 yamt { 333 1.15.2.2 yamt int rv; 334 1.15.2.2 yamt 335 1.15.2.2 yamt if (rump_threads) { 336 1.15.2.2 yamt if ((rv = kthread_create(PRI_NONE, 0, NULL, sockinworker, 337 1.15.2.2 yamt NULL, NULL, "sockwork")) != 0) 338 1.15.2.2 yamt panic("sockin_init: could not create worker thread\n"); 339 1.15.2.2 yamt } else { 340 1.15.2.2 yamt printf("sockin_init: no threads => no worker thread\n"); 341 1.15.2.2 yamt } 342 1.15.2.2 yamt mutex_init(&su_mtx, MUTEX_DEFAULT, IPL_NONE); 343 1.15.2.2 yamt } 344 1.15.2.2 yamt 345 1.15.2.2 yamt static int 346 1.15.2.2 yamt sockin_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, 347 1.15.2.2 yamt struct mbuf *control, struct lwp *l) 348 1.15.2.2 yamt { 349 1.15.2.2 yamt int error = 0, rv; 350 1.15.2.2 yamt 351 1.15.2.2 yamt switch (req) { 352 1.15.2.2 yamt case PRU_ATTACH: 353 1.15.2.2 yamt { 354 1.15.2.2 yamt int news, dummy; 355 1.15.2.2 yamt 356 1.15.2.2 yamt sosetlock(so); 357 1.15.2.2 yamt if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 358 1.15.2.2 yamt error = soreserve(so, SOCKIN_SBSIZE, SOCKIN_SBSIZE); 359 1.15.2.2 yamt if (error) 360 1.15.2.2 yamt break; 361 1.15.2.2 yamt } 362 1.15.2.2 yamt 363 1.15.2.2 yamt news = rumpuser_net_socket(PF_INET, so->so_proto->pr_type, 364 1.15.2.2 yamt 0, &error); 365 1.15.2.2 yamt if (news == -1) 366 1.15.2.2 yamt break; 367 1.15.2.2 yamt 368 1.15.2.2 yamt if ((error = registersock(so, news)) != 0) 369 1.15.2.2 yamt rumpuser_close(news, &dummy); 370 1.15.2.2 yamt 371 1.15.2.2 yamt break; 372 1.15.2.2 yamt } 373 1.15.2.2 yamt 374 1.15.2.2 yamt case PRU_ACCEPT: 375 1.15.2.2 yamt /* we do all the work in the worker thread */ 376 1.15.2.2 yamt break; 377 1.15.2.2 yamt 378 1.15.2.2 yamt case PRU_BIND: 379 1.15.2.2 yamt rumpuser_net_bind(SO2S(so), mtod(nam, const struct sockaddr *), 380 1.15.2.2 yamt sizeof(struct sockaddr_in), &error); 381 1.15.2.2 yamt break; 382 1.15.2.2 yamt 383 1.15.2.2 yamt case PRU_CONNECT: 384 1.15.2.2 yamt rv = rumpuser_net_connect(SO2S(so), 385 1.15.2.2 yamt mtod(nam, struct sockaddr *), sizeof(struct sockaddr_in), 386 1.15.2.2 yamt &error); 387 1.15.2.2 yamt if (rv == 0) 388 1.15.2.2 yamt soisconnected(so); 389 1.15.2.2 yamt break; 390 1.15.2.2 yamt 391 1.15.2.2 yamt case PRU_LISTEN: 392 1.15.2.2 yamt rumpuser_net_listen(SO2S(so), so->so_qlimit, &error); 393 1.15.2.2 yamt break; 394 1.15.2.2 yamt 395 1.15.2.2 yamt case PRU_SEND: 396 1.15.2.2 yamt { 397 1.15.2.2 yamt struct sockaddr *saddr; 398 1.15.2.2 yamt struct msghdr mhdr; 399 1.15.2.2 yamt struct iovec iov[16]; 400 1.15.2.2 yamt struct mbuf *m2; 401 1.15.2.2 yamt size_t tot; 402 1.15.2.2 yamt int i, s; 403 1.15.2.2 yamt 404 1.15.2.2 yamt memset(&mhdr, 0, sizeof(mhdr)); 405 1.15.2.2 yamt 406 1.15.2.2 yamt tot = 0; 407 1.15.2.2 yamt for (i = 0, m2 = m; m2; m2 = m2->m_next, i++) { 408 1.15.2.2 yamt if (i > 16) 409 1.15.2.2 yamt panic("lazy bum"); 410 1.15.2.2 yamt iov[i].iov_base = m2->m_data; 411 1.15.2.2 yamt iov[i].iov_len = m2->m_len; 412 1.15.2.2 yamt tot += m2->m_len; 413 1.15.2.2 yamt 414 1.15.2.2 yamt } 415 1.15.2.2 yamt mhdr.msg_iov = iov; 416 1.15.2.2 yamt mhdr.msg_iovlen = i; 417 1.15.2.2 yamt s = SO2S(so); 418 1.15.2.2 yamt 419 1.15.2.2 yamt if (nam) { 420 1.15.2.2 yamt saddr = mtod(nam, struct sockaddr *); 421 1.15.2.2 yamt mhdr.msg_name = saddr; 422 1.15.2.2 yamt mhdr.msg_namelen = saddr->sa_len; 423 1.15.2.2 yamt } 424 1.15.2.2 yamt 425 1.15.2.2 yamt rumpuser_net_sendmsg(s, &mhdr, 0, &error); 426 1.15.2.2 yamt 427 1.15.2.2 yamt m_freem(m); 428 1.15.2.2 yamt m_freem(control); 429 1.15.2.2 yamt 430 1.15.2.2 yamt /* this assumes too many things to list.. buthey, testing */ 431 1.15.2.2 yamt if (!rump_threads) 432 1.15.2.2 yamt sockin_process(so); 433 1.15.2.2 yamt } 434 1.15.2.2 yamt break; 435 1.15.2.2 yamt 436 1.15.2.2 yamt case PRU_SHUTDOWN: 437 1.15.2.2 yamt removesock(so); 438 1.15.2.2 yamt break; 439 1.15.2.2 yamt 440 1.15.2.2 yamt case PRU_SOCKADDR: 441 1.15.2.2 yamt case PRU_PEERADDR: 442 1.15.2.2 yamt { 443 1.15.2.2 yamt int slen = nam->m_len; 444 1.15.2.2 yamt enum rumpuser_getnametype which; 445 1.15.2.2 yamt 446 1.15.2.2 yamt if (req == PRU_SOCKADDR) 447 1.15.2.2 yamt which = RUMPUSER_SOCKNAME; 448 1.15.2.2 yamt else 449 1.15.2.2 yamt which = RUMPUSER_PEERNAME; 450 1.15.2.2 yamt rumpuser_net_getname(SO2S(so), 451 1.15.2.2 yamt mtod(nam, struct sockaddr *), &slen, which, &error); 452 1.15.2.2 yamt if (error == 0) 453 1.15.2.2 yamt nam->m_len = slen; 454 1.15.2.2 yamt break; 455 1.15.2.2 yamt } 456 1.15.2.2 yamt 457 1.15.2.2 yamt default: 458 1.15.2.2 yamt panic("sockin_usrreq: IMPLEMENT ME, req %d not supported", req); 459 1.15.2.2 yamt } 460 1.15.2.2 yamt 461 1.15.2.2 yamt return error; 462 1.15.2.2 yamt } 463 1.15.2.2 yamt 464 1.15.2.2 yamt static int 465 1.15.2.2 yamt sockin_ctloutput(int op, struct socket *so, struct sockopt *sopt) 466 1.15.2.2 yamt { 467 1.15.2.3 yamt int error; 468 1.15.2.2 yamt 469 1.15.2.3 yamt rumpuser_net_setsockopt(SO2S(so), sopt->sopt_level, 470 1.15.2.3 yamt sopt->sopt_name, sopt->sopt_data, sopt->sopt_size, &error); 471 1.15.2.3 yamt return error; 472 1.15.2.2 yamt } 473
Indexes created Thu Oct 02 10:09:58 GMT 2025