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32 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
36 #include <sys/param.h>
37 #include <sys/kernel.h>
39 #include <sys/malloc.h>
41 #include <sys/mutex.h>
43 #include <sys/protosw.h>
44 #include <sys/signalvar.h>
45 #include <sys/socket.h>
46 #include <sys/socketvar.h>
48 #include <sys/systm.h>
52 #include <net/raw_cb.h>
54 MTX_SYSINIT(rawcb_mtx, &rawcb_mtx, "rawcb", MTX_DEF);
57 * Initialize raw connection block q.
63 LIST_INIT(&V_rawcb_list);
67 * Raw protocol input routine. Find the socket associated with the packet(s)
68 * and move them over. If nothing exists for this packet, drop it.
71 * Raw protocol interface.
74 raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src)
77 return (raw_input_ext(m0, proto, src, NULL));
81 raw_input_ext(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
90 LIST_FOREACH(rp, &V_rawcb_list, list) {
91 if (rp->rcb_proto.sp_family != proto->sp_family)
93 if (rp->rcb_proto.sp_protocol &&
94 rp->rcb_proto.sp_protocol != proto->sp_protocol)
96 if (cb != NULL && (*cb)(m, proto, src, rp) != 0)
100 n = m_copym(m, 0, M_COPYALL, M_NOWAIT);
102 if (sbappendaddr(&last->so_rcv, src,
103 n, (struct mbuf *)0) == 0)
104 /* should notify about lost packet */
110 last = rp->rcb_socket;
113 if (sbappendaddr(&last->so_rcv, src,
114 m, (struct mbuf *)0) == 0)
120 mtx_unlock(&rawcb_mtx);
125 raw_ctlinput(int cmd, struct sockaddr *arg, void *dummy)
128 if (cmd < 0 || cmd >= PRC_NCMDS)
134 raw_uabort(struct socket *so)
137 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
139 soisdisconnected(so);
143 raw_uclose(struct socket *so)
146 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
148 soisdisconnected(so);
151 /* pru_accept is EOPNOTSUPP */
154 raw_uattach(struct socket *so, int proto, struct thread *td)
159 * Implementors of raw sockets will already have allocated the PCB,
160 * so it must be non-NULL here.
162 KASSERT(sotorawcb(so) != NULL, ("raw_uattach: so_pcb == NULL"));
165 error = priv_check(td, PRIV_NET_RAW);
169 return (raw_attach(so, proto));
173 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
180 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
186 /* pru_connect2 is EOPNOTSUPP */
187 /* pru_control is EOPNOTSUPP */
190 raw_udetach(struct socket *so)
192 struct rawcb *rp = sotorawcb(so);
194 KASSERT(rp != NULL, ("raw_udetach: rp == NULL"));
200 raw_udisconnect(struct socket *so)
203 KASSERT(sotorawcb(so) != NULL, ("raw_udisconnect: rp == NULL"));
208 /* pru_listen is EOPNOTSUPP */
211 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
214 KASSERT(sotorawcb(so) != NULL, ("raw_upeeraddr: rp == NULL"));
219 /* pru_rcvd is EOPNOTSUPP */
220 /* pru_rcvoob is EOPNOTSUPP */
223 raw_usend(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
224 struct mbuf *control, struct thread *td)
227 KASSERT(sotorawcb(so) != NULL, ("raw_usend: rp == NULL"));
229 if ((flags & PRUS_OOB) || (control && control->m_len)) {
238 * For historical (bad?) reasons, we effectively ignore the address
239 * argument to sendto(2). Perhaps we should return an error instead?
241 return ((*so->so_proto->pr_output)(m, so));
244 /* pru_sense is null */
247 raw_ushutdown(struct socket *so)
250 KASSERT(sotorawcb(so) != NULL, ("raw_ushutdown: rp == NULL"));
257 raw_usockaddr(struct socket *so, struct sockaddr **nam)
260 KASSERT(sotorawcb(so) != NULL, ("raw_usockaddr: rp == NULL"));
265 struct pr_usrreqs raw_usrreqs = {
266 .pru_abort = raw_uabort,
267 .pru_attach = raw_uattach,
268 .pru_bind = raw_ubind,
269 .pru_connect = raw_uconnect,
270 .pru_detach = raw_udetach,
271 .pru_disconnect = raw_udisconnect,
272 .pru_peeraddr = raw_upeeraddr,
273 .pru_send = raw_usend,
274 .pru_shutdown = raw_ushutdown,
275 .pru_sockaddr = raw_usockaddr,
276 .pru_close = raw_uclose,