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29 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
30 * $FreeBSD: src/sys/net/raw_usrreq.c,v 1.18 1999/08/28 00:48:28 peter Exp $
33 #include <sys/param.h>
34 #include <sys/systm.h>
38 #include <sys/protosw.h>
39 #include <sys/socket.h>
40 #include <sys/socketvar.h>
42 #include <sys/socketvar2.h>
43 #include <sys/msgport2.h>
45 #include <net/raw_cb.h>
46 #include <net/netisr2.h>
49 * Except from the raw_init(), rest of interfaces must be called
54 * Initialize raw connection block q.
59 LIST_INIT(&rawcb_list);
62 /************************************************************************
63 * RAW PROTOCOL INTERFACE *
64 ************************************************************************/
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. This
69 * routine is indirect called via rts_input() and will be serialized on
72 * Most other raw protocol interface functions are also serialized XXX.
75 raw_input(struct mbuf *m0, const struct sockproto *proto,
76 const struct sockaddr *src, const struct sockaddr *dst,
77 const struct rawcb *skip)
87 LIST_FOREACH(rp, &rawcb_list, list) {
90 if (rp->rcb_proto.sp_family != proto->sp_family)
92 if (rp->rcb_proto.sp_protocol &&
93 rp->rcb_proto.sp_protocol != proto->sp_protocol)
96 * We assume the lower level routines have
97 * placed the address in a canonical format
98 * suitable for a structure comparison.
100 * Note that if the lengths are not the same
101 * the comparison will fail at the first byte.
103 if (rp->rcb_laddr && !sa_equal(rp->rcb_laddr, dst))
105 if (rp->rcb_faddr && !sa_equal(rp->rcb_faddr, src))
110 n = m_copypacket(m, M_NOWAIT);
112 lwkt_gettoken(&last->so_rcv.ssb_token);
113 if (ssb_appendaddr(&last->so_rcv, src, n,
120 lwkt_reltoken(&last->so_rcv.ssb_token);
123 last = rp->rcb_socket;
126 lwkt_gettoken(&last->so_rcv.ssb_token);
127 if (ssb_appendaddr(&last->so_rcv, src, m, NULL) == 0) {
132 lwkt_reltoken(&last->so_rcv.ssb_token);
139 * nm_cmd, nm_arg, nm_extra
142 raw_ctlinput(netmsg_t msg)
148 if (msg->ctlinput.nm_cmd < 0 || msg->ctlinput.nm_cmd > PRC_NCMDS) {
151 lwkt_replymsg(&msg->lmsg, error);
155 * NOTE: (so) is referenced from soabort*() and netmsg_pru_abort()
156 * will sofree() it when we return.
159 raw_uabort(netmsg_t msg)
161 struct rawcb *rp = sotorawcb(msg->base.nm_so);
168 soisdisconnected(msg->base.nm_so);
173 lwkt_replymsg(&msg->lmsg, error);
176 /* pru_accept is EOPNOTSUPP */
179 raw_uattach(netmsg_t msg)
181 struct socket *so = msg->base.nm_so;
182 int proto = msg->attach.nm_proto;
183 struct pru_attach_info *ai = msg->attach.nm_ai;
191 error = priv_check_cred(ai->p_ucred, PRIV_ROOT, NULL_CRED_OKAY);
193 error = raw_attach(so, proto, ai->sb_rlimit);
197 lwkt_replymsg(&msg->lmsg, error);
201 raw_ubind(netmsg_t msg)
204 lwkt_replymsg(&msg->lmsg, EINVAL);
208 raw_uconnect(netmsg_t msg)
211 lwkt_replymsg(&msg->lmsg, EINVAL);
214 /* pru_connect2 is EOPNOTSUPP */
215 /* pru_control is EOPNOTSUPP */
218 raw_udetach(netmsg_t msg)
220 struct rawcb *rp = sotorawcb(msg->base.nm_so);
231 lwkt_replymsg(&msg->lmsg, error);
235 raw_udisconnect(netmsg_t msg)
237 struct socket *so = msg->base.nm_so;
246 } else if (rp->rcb_faddr == NULL) {
251 soisdisconnected(so);
255 lwkt_replymsg(&msg->lmsg, error);
258 /* pru_listen is EOPNOTSUPP */
261 raw_upeeraddr(netmsg_t msg)
263 struct rawcb *rp = sotorawcb(msg->base.nm_so);
270 } else if (rp->rcb_faddr == NULL) {
273 *msg->peeraddr.nm_nam = dup_sockaddr(rp->rcb_faddr);
276 lwkt_replymsg(&msg->lmsg, error);
279 /* pru_rcvd is EOPNOTSUPP */
280 /* pru_rcvoob is EOPNOTSUPP */
283 raw_usend(netmsg_t msg)
285 struct socket *so = msg->base.nm_so;
286 struct mbuf *m = msg->send.nm_m;
287 struct mbuf *control = msg->send.nm_control;
288 struct rawcb *rp = sotorawcb(so);
289 struct pr_output_info oi;
290 int flags = msg->send.nm_flags;
300 if (flags & PRUS_OOB) {
305 if (control && control->m_len) {
309 if (msg->send.nm_addr) {
314 rp->rcb_faddr = msg->send.nm_addr;
315 } else if (rp->rcb_faddr == NULL) {
319 oi.p_pid = msg->send.nm_td->td_proc->p_pid;
320 error = (*so->so_proto->pr_output)(m, so, &oi);
322 if (msg->send.nm_addr)
323 rp->rcb_faddr = NULL;
327 lwkt_replymsg(&msg->lmsg, error);
330 /* pru_sense is null */
333 raw_ushutdown(netmsg_t msg)
335 struct rawcb *rp = sotorawcb(msg->base.nm_so);
341 socantsendmore(msg->base.nm_so);
346 lwkt_replymsg(&msg->lmsg, error);
350 raw_usockaddr(netmsg_t msg)
352 struct rawcb *rp = sotorawcb(msg->base.nm_so);
359 } else if (rp->rcb_laddr == NULL) {
362 *msg->sockaddr.nm_nam = dup_sockaddr(rp->rcb_laddr);
365 lwkt_replymsg(&msg->lmsg, error);
368 struct pr_usrreqs raw_usrreqs = {
369 .pru_abort = raw_uabort,
370 .pru_accept = pr_generic_notsupp,
371 .pru_attach = raw_uattach,
372 .pru_bind = raw_ubind,
373 .pru_connect = raw_uconnect,
374 .pru_connect2 = pr_generic_notsupp,
375 .pru_control = pr_generic_notsupp,
376 .pru_detach = raw_udetach,
377 .pru_disconnect = raw_udisconnect,
378 .pru_listen = pr_generic_notsupp,
379 .pru_peeraddr = raw_upeeraddr,
380 .pru_rcvd = pr_generic_notsupp,
381 .pru_rcvoob = pr_generic_notsupp,
382 .pru_send = raw_usend,
383 .pru_sense = pru_sense_null,
384 .pru_shutdown = raw_ushutdown,
385 .pru_sockaddr = raw_usockaddr,
386 .pru_sosend = sosend,
387 .pru_soreceive = soreceive