1/*- 2 * Copyright (c) 1980, 1986, 1993 3 * The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 14 unchanged lines hidden (view full) --- 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93 |
31 * $FreeBSD: head/sys/net/raw_usrreq.c 180385 2008-07-09 15:48:16Z rwatson $ |
32 */ 33 34#include <sys/param.h> 35#include <sys/kernel.h> 36#include <sys/lock.h> 37#include <sys/malloc.h> 38#include <sys/mbuf.h> 39#include <sys/mutex.h> --- 22 unchanged lines hidden (view full) --- 62/* 63 * Raw protocol input routine. Find the socket associated with the packet(s) 64 * and move them over. If nothing exists for this packet, drop it. 65 */ 66/* 67 * Raw protocol interface. 68 */ 69void |
70raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src) |
71{ 72 struct rawcb *rp; 73 struct mbuf *m = m0; 74 struct socket *last; 75 76 last = 0; 77 mtx_lock(&rawcb_mtx); 78 LIST_FOREACH(rp, &rawcb_list, list) { 79 if (rp->rcb_proto.sp_family != proto->sp_family) 80 continue; 81 if (rp->rcb_proto.sp_protocol && 82 rp->rcb_proto.sp_protocol != proto->sp_protocol) 83 continue; |
84 if (last) { 85 struct mbuf *n; 86 n = m_copy(m, 0, (int)M_COPYALL); 87 if (n) { 88 if (sbappendaddr(&last->so_rcv, src, 89 n, (struct mbuf *)0) == 0) 90 /* should notify about lost packet */ 91 m_freem(n); --- 22 unchanged lines hidden (view full) --- 114 if (cmd < 0 || cmd >= PRC_NCMDS) 115 return; 116 /* INCOMPLETE */ 117} 118 119static void 120raw_uabort(struct socket *so) 121{ |
122 |
123 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL")); 124 |
125 soisdisconnected(so); 126} 127 128static void 129raw_uclose(struct socket *so) 130{ |
131 |
132 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL")); 133 |
134 soisdisconnected(so); 135} 136 137/* pru_accept is EOPNOTSUPP */ 138 139static int 140raw_uattach(struct socket *so, int proto, struct thread *td) 141{ 142 int error; 143 144 /* 145 * Implementors of raw sockets will already have allocated the PCB, |
146 * so it must be non-NULL here. |
147 */ 148 KASSERT(sotorawcb(so) != NULL, ("raw_uattach: so_pcb == NULL")); 149 150 if (td != NULL) { 151 error = priv_check(td, PRIV_NET_RAW); 152 if (error) |
153 return (error); |
154 } |
155 return (raw_attach(so, proto)); |
156} 157 158static int 159raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td) 160{ 161 162 return (EINVAL); 163} --- 9 unchanged lines hidden (view full) --- 173/* pru_control is EOPNOTSUPP */ 174 175static void 176raw_udetach(struct socket *so) 177{ 178 struct rawcb *rp = sotorawcb(so); 179 180 KASSERT(rp != NULL, ("raw_udetach: rp == NULL")); |
181 |
182 raw_detach(rp); 183} 184 185static int 186raw_udisconnect(struct socket *so) 187{ |
188 |
189 KASSERT(sotorawcb(so) != NULL, ("raw_udisconnect: rp == NULL")); 190 191 return (ENOTCONN); |
192} 193 194/* pru_listen is EOPNOTSUPP */ 195 196static int 197raw_upeeraddr(struct socket *so, struct sockaddr **nam) 198{ |
199 |
200 KASSERT(sotorawcb(so) != NULL, ("raw_upeeraddr: rp == NULL")); 201 202 return (ENOTCONN); |
203} 204 205/* pru_rcvd is EOPNOTSUPP */ 206/* pru_rcvoob is EOPNOTSUPP */ 207 208static int 209raw_usend(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam, 210 struct mbuf *control, struct thread *td) 211{ |
212 |
213 KASSERT(sotorawcb(so) != NULL, ("raw_usend: rp == NULL")); |
214 |
215 if ((flags & PRUS_OOB) || (control && control->m_len)) { 216 /* XXXRW: Should control also be freed here? */ 217 if (m != NULL) 218 m_freem(m); 219 return (EOPNOTSUPP); |
220 } 221 |
222 /* 223 * For historical (bad?) reasons, we effectively ignore the address 224 * argument to sendto(2). Perhaps we should return an error instead? 225 */ 226 return ((*so->so_proto->pr_output)(m, so)); |
227} 228 229/* pru_sense is null */ 230 231static int 232raw_ushutdown(struct socket *so) 233{ 234 235 KASSERT(sotorawcb(so) != NULL, ("raw_ushutdown: rp == NULL")); |
236 |
237 socantsendmore(so); 238 return (0); 239} 240 241static int 242raw_usockaddr(struct socket *so, struct sockaddr **nam) 243{ |
244 |
245 KASSERT(sotorawcb(so) != NULL, ("raw_usockaddr: rp == NULL")); 246 247 return (EINVAL); |
248} 249 250struct pr_usrreqs raw_usrreqs = { 251 .pru_abort = raw_uabort, 252 .pru_attach = raw_uattach, 253 .pru_bind = raw_ubind, 254 .pru_connect = raw_uconnect, 255 .pru_detach = raw_udetach, 256 .pru_disconnect = raw_udisconnect, 257 .pru_peeraddr = raw_upeeraddr, 258 .pru_send = raw_usend, 259 .pru_shutdown = raw_ushutdown, 260 .pru_sockaddr = raw_usockaddr, 261 .pru_close = raw_uclose, 262}; |