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30 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
34 #include <sys/param.h>
35 #include <sys/kernel.h>
37 #include <sys/malloc.h>
39 #include <sys/mutex.h>
41 #include <sys/protosw.h>
42 #include <sys/signalvar.h>
43 #include <sys/socket.h>
44 #include <sys/socketvar.h>
46 #include <sys/systm.h>
48 #include <net/raw_cb.h>
50 MTX_SYSINIT(rawcb_mtx, &rawcb_mtx, "rawcb", MTX_DEF);
53 * Initialize raw connection block q.
59 LIST_INIT(&rawcb_list);
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.
67 * Raw protocol interface.
70 raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src)
78 LIST_FOREACH(rp, &rawcb_list, list) {
79 if (rp->rcb_proto.sp_family != proto->sp_family)
81 if (rp->rcb_proto.sp_protocol &&
82 rp->rcb_proto.sp_protocol != proto->sp_protocol)
86 n = m_copy(m, 0, (int)M_COPYALL);
88 if (sbappendaddr(&last->so_rcv, src,
89 n, (struct mbuf *)0) == 0)
90 /* should notify about lost packet */
96 last = rp->rcb_socket;
99 if (sbappendaddr(&last->so_rcv, src,
100 m, (struct mbuf *)0) == 0)
106 mtx_unlock(&rawcb_mtx);
111 raw_ctlinput(int cmd, struct sockaddr *arg, void *dummy)
114 if (cmd < 0 || cmd >= PRC_NCMDS)
120 raw_uabort(struct socket *so)
123 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
125 soisdisconnected(so);
129 raw_uclose(struct socket *so)
132 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
134 soisdisconnected(so);
137 /* pru_accept is EOPNOTSUPP */
140 raw_uattach(struct socket *so, int proto, struct thread *td)
145 * Implementors of raw sockets will already have allocated the PCB,
146 * so it must be non-NULL here.
148 KASSERT(sotorawcb(so) != NULL, ("raw_uattach: so_pcb == NULL"));
151 error = priv_check(td, PRIV_NET_RAW);
155 return (raw_attach(so, proto));
159 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
166 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
172 /* pru_connect2 is EOPNOTSUPP */
173 /* pru_control is EOPNOTSUPP */
176 raw_udetach(struct socket *so)
178 struct rawcb *rp = sotorawcb(so);
180 KASSERT(rp != NULL, ("raw_udetach: rp == NULL"));
186 raw_udisconnect(struct socket *so)
189 KASSERT(sotorawcb(so) != NULL, ("raw_udisconnect: rp == NULL"));
194 /* pru_listen is EOPNOTSUPP */
197 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
200 KASSERT(sotorawcb(so) != NULL, ("raw_upeeraddr: rp == NULL"));
205 /* pru_rcvd is EOPNOTSUPP */
206 /* pru_rcvoob is EOPNOTSUPP */
209 raw_usend(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
210 struct mbuf *control, struct thread *td)
213 KASSERT(sotorawcb(so) != NULL, ("raw_usend: rp == NULL"));
215 if ((flags & PRUS_OOB) || (control && control->m_len)) {
216 /* XXXRW: Should control also be freed here? */
223 * For historical (bad?) reasons, we effectively ignore the address
224 * argument to sendto(2). Perhaps we should return an error instead?
226 return ((*so->so_proto->pr_output)(m, so));
229 /* pru_sense is null */
232 raw_ushutdown(struct socket *so)
235 KASSERT(sotorawcb(so) != NULL, ("raw_ushutdown: rp == NULL"));
242 raw_usockaddr(struct socket *so, struct sockaddr **nam)
245 KASSERT(sotorawcb(so) != NULL, ("raw_usockaddr: rp == NULL"));
250 struct 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,