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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>
49 #include <net/raw_cb.h>
52 MTX_SYSINIT(rawcb_mtx, &rawcb_mtx, "rawcb", MTX_DEF);
55 * Initialize raw connection block q.
61 LIST_INIT(&V_rawcb_list);
65 * Raw protocol input routine. Find the socket associated with the packet(s)
66 * and move them over. If nothing exists for this packet, drop it.
69 * Raw protocol interface.
72 raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src)
75 return (raw_input_ext(m0, proto, src, NULL));
79 raw_input_ext(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
88 LIST_FOREACH(rp, &V_rawcb_list, list) {
89 if (rp->rcb_proto.sp_family != proto->sp_family)
91 if (rp->rcb_proto.sp_protocol &&
92 rp->rcb_proto.sp_protocol != proto->sp_protocol)
94 if (cb != NULL && (*cb)(m, proto, src, rp) != 0)
98 n = m_copy(m, 0, (int)M_COPYALL);
100 if (sbappendaddr(&last->so_rcv, src,
101 n, (struct mbuf *)0) == 0)
102 /* should notify about lost packet */
108 last = rp->rcb_socket;
111 if (sbappendaddr(&last->so_rcv, src,
112 m, (struct mbuf *)0) == 0)
118 mtx_unlock(&rawcb_mtx);
123 raw_ctlinput(int cmd, struct sockaddr *arg, void *dummy)
126 if (cmd < 0 || cmd >= PRC_NCMDS)
132 raw_uabort(struct socket *so)
135 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
137 soisdisconnected(so);
141 raw_uclose(struct socket *so)
144 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
146 soisdisconnected(so);
149 /* pru_accept is EOPNOTSUPP */
152 raw_uattach(struct socket *so, int proto, struct thread *td)
157 * Implementors of raw sockets will already have allocated the PCB,
158 * so it must be non-NULL here.
160 KASSERT(sotorawcb(so) != NULL, ("raw_uattach: so_pcb == NULL"));
163 error = priv_check(td, PRIV_NET_RAW);
167 return (raw_attach(so, proto));
171 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
178 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
184 /* pru_connect2 is EOPNOTSUPP */
185 /* pru_control is EOPNOTSUPP */
188 raw_udetach(struct socket *so)
190 struct rawcb *rp = sotorawcb(so);
192 KASSERT(rp != NULL, ("raw_udetach: rp == NULL"));
198 raw_udisconnect(struct socket *so)
201 KASSERT(sotorawcb(so) != NULL, ("raw_udisconnect: rp == NULL"));
206 /* pru_listen is EOPNOTSUPP */
209 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
212 KASSERT(sotorawcb(so) != NULL, ("raw_upeeraddr: rp == NULL"));
217 /* pru_rcvd is EOPNOTSUPP */
218 /* pru_rcvoob is EOPNOTSUPP */
221 raw_usend(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
222 struct mbuf *control, struct thread *td)
225 KASSERT(sotorawcb(so) != NULL, ("raw_usend: rp == NULL"));
227 if ((flags & PRUS_OOB) || (control && control->m_len)) {
228 /* XXXRW: Should control also be freed here? */
235 * For historical (bad?) reasons, we effectively ignore the address
236 * argument to sendto(2). Perhaps we should return an error instead?
238 return ((*so->so_proto->pr_output)(m, so));
241 /* pru_sense is null */
244 raw_ushutdown(struct socket *so)
247 KASSERT(sotorawcb(so) != NULL, ("raw_ushutdown: rp == NULL"));
254 raw_usockaddr(struct socket *so, struct sockaddr **nam)
257 KASSERT(sotorawcb(so) != NULL, ("raw_usockaddr: rp == NULL"));
262 struct pr_usrreqs raw_usrreqs = {
263 .pru_abort = raw_uabort,
264 .pru_attach = raw_uattach,
265 .pru_bind = raw_ubind,
266 .pru_connect = raw_uconnect,
267 .pru_detach = raw_udetach,
268 .pru_disconnect = raw_udisconnect,
269 .pru_peeraddr = raw_upeeraddr,
270 .pru_send = raw_usend,
271 .pru_shutdown = raw_ushutdown,
272 .pru_sockaddr = raw_usockaddr,
273 .pru_close = raw_uclose,