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33 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/net/raw_usrreq.c,v 1.18 1999/08/28 00:48:28 peter Exp $
35 * $DragonFly: src/sys/net/raw_usrreq.c,v 1.14 2007/06/24 20:00:00 dillon Exp $
38 #include <sys/param.h>
39 #include <sys/systm.h>
43 #include <sys/protosw.h>
44 #include <sys/socket.h>
45 #include <sys/socketvar.h>
47 #include <net/raw_cb.h>
50 * Initialize raw connection block q.
55 LIST_INIT(&rawcb_list);
58 /************************************************************************
59 * RAW PROTOCOL INTERFACE *
60 ************************************************************************/
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. This
65 * routine is indirect called via rts_input() and will be serialized on
68 * Most other raw protocol interface functions are also serialized XXX.
71 raw_input(struct mbuf *m0, struct sockproto *proto, const struct sockaddr *src,
72 const struct sockaddr *dst)
79 LIST_FOREACH(rp, &rawcb_list, list) {
80 if (rp->rcb_proto.sp_family != proto->sp_family)
82 if (rp->rcb_proto.sp_protocol &&
83 rp->rcb_proto.sp_protocol != proto->sp_protocol)
86 * We assume the lower level routines have
87 * placed the address in a canonical format
88 * suitable for a structure comparison.
90 * Note that if the lengths are not the same
91 * the comparison will fail at the first byte.
93 if (rp->rcb_laddr && !sa_equal(rp->rcb_laddr, dst))
95 if (rp->rcb_faddr && !sa_equal(rp->rcb_faddr, src))
100 n = m_copypacket(m, MB_DONTWAIT);
102 if (ssb_appendaddr(&last->so_rcv, src, n,
103 (struct mbuf *)0) == 0) {
104 /* should notify about lost packet */
111 last = rp->rcb_socket;
114 if (ssb_appendaddr(&last->so_rcv, src, m, (struct mbuf *)0) == 0)
125 raw_ctlinput(int cmd, struct sockaddr *arg, void *dummy)
128 if (cmd < 0 || cmd > PRC_NCMDS)
134 raw_uabort(struct socket *so)
136 struct rawcb *rp = sotorawcb(so);
142 soisdisconnected(so);
146 /* pru_accept is EOPNOTSUPP */
149 raw_uattach(struct socket *so, int proto, struct pru_attach_info *ai)
151 struct rawcb *rp = sotorawcb(so);
156 if ((error = priv_check_cred(ai->p_ucred, PRIV_ROOT, NULL_CRED_OKAY)) != 0)
158 return raw_attach(so, proto, ai->sb_rlimit);
162 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
168 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
173 /* pru_connect2 is EOPNOTSUPP */
174 /* pru_control is EOPNOTSUPP */
177 raw_udetach(struct socket *so)
179 struct rawcb *rp = sotorawcb(so);
189 raw_udisconnect(struct socket *so)
191 struct rawcb *rp = sotorawcb(so);
195 if (rp->rcb_faddr == NULL) {
199 soisdisconnected(so);
203 /* pru_listen is EOPNOTSUPP */
206 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
208 struct rawcb *rp = sotorawcb(so);
212 if (rp->rcb_faddr == NULL) {
215 *nam = dup_sockaddr(rp->rcb_faddr);
219 /* pru_rcvd is EOPNOTSUPP */
220 /* pru_rcvoob is EOPNOTSUPP */
223 raw_usend(struct socket *so, int flags, struct mbuf *m,
224 struct sockaddr *nam, struct mbuf *control, struct thread *td)
227 struct rawcb *rp = sotorawcb(so);
228 struct pr_output_info oi;
235 if (flags & PRUS_OOB) {
240 if (control && control->m_len) {
250 } else if (rp->rcb_faddr == NULL) {
254 oi.p_pid = td->td_proc->p_pid;
255 error = (*so->so_proto->pr_output)(m, so, &oi);
258 rp->rcb_faddr = NULL;
265 /* pru_sense is null */
268 raw_ushutdown(struct socket *so)
270 struct rawcb *rp = sotorawcb(so);
279 raw_usockaddr(struct socket *so, struct sockaddr **nam)
281 struct rawcb *rp = sotorawcb(so);
285 if (rp->rcb_laddr == NULL)
287 *nam = dup_sockaddr(rp->rcb_laddr);
291 struct pr_usrreqs raw_usrreqs = {
292 .pru_abort = raw_uabort,
293 .pru_accept = pru_accept_notsupp,
294 .pru_attach = raw_uattach,
295 .pru_bind = raw_ubind,
296 .pru_connect = raw_uconnect,
297 .pru_connect2 = pru_connect2_notsupp,
298 .pru_control = pru_control_notsupp,
299 .pru_detach = raw_udetach,
300 .pru_disconnect = raw_udisconnect,
301 .pru_listen = pru_listen_notsupp,
302 .pru_peeraddr = raw_upeeraddr,
303 .pru_rcvd = pru_rcvd_notsupp,
304 .pru_rcvoob = pru_rcvoob_notsupp,
305 .pru_send = raw_usend,
306 .pru_sense = pru_sense_null,
307 .pru_shutdown = raw_ushutdown,
308 .pru_sockaddr = raw_usockaddr,
309 .pru_sosend = sosend,
310 .pru_soreceive = soreceive,