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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>
48 static struct lwkt_token raw_token = LWKT_TOKEN_INITIALIZER(raw_token);
51 * Initialize raw connection block q.
56 LIST_INIT(&rawcb_list);
59 /************************************************************************
60 * RAW PROTOCOL INTERFACE *
61 ************************************************************************/
64 * Raw protocol input routine. Find the socket associated with the packet(s)
65 * and move them over. If nothing exists for this packet, drop it. This
66 * routine is indirect called via rts_input() and will be serialized on
69 * Most other raw protocol interface functions are also serialized XXX.
72 raw_input(struct mbuf *m0, const struct sockproto *proto,
73 const struct sockaddr *src, const struct sockaddr *dst,
74 const struct rawcb *skip)
80 lwkt_gettoken(&raw_token);
83 LIST_FOREACH(rp, &rawcb_list, list) {
86 if (rp->rcb_proto.sp_family != proto->sp_family)
88 if (rp->rcb_proto.sp_protocol &&
89 rp->rcb_proto.sp_protocol != proto->sp_protocol)
92 * We assume the lower level routines have
93 * placed the address in a canonical format
94 * suitable for a structure comparison.
96 * Note that if the lengths are not the same
97 * the comparison will fail at the first byte.
99 if (rp->rcb_laddr && !sa_equal(rp->rcb_laddr, dst))
101 if (rp->rcb_faddr && !sa_equal(rp->rcb_faddr, src))
106 n = m_copypacket(m, M_NOWAIT);
108 lwkt_gettoken(&last->so_rcv.ssb_token);
109 if (ssb_appendaddr(&last->so_rcv, src, n,
116 lwkt_reltoken(&last->so_rcv.ssb_token);
119 last = rp->rcb_socket;
122 lwkt_gettoken(&last->so_rcv.ssb_token);
123 if (ssb_appendaddr(&last->so_rcv, src, m, NULL) == 0) {
128 lwkt_reltoken(&last->so_rcv.ssb_token);
132 lwkt_reltoken(&raw_token);
136 * nm_cmd, nm_arg, nm_extra
139 raw_ctlinput(netmsg_t msg)
143 if (msg->ctlinput.nm_cmd < 0 || msg->ctlinput.nm_cmd > PRC_NCMDS) {
146 lwkt_replymsg(&msg->lmsg, error);
150 * NOTE: (so) is referenced from soabort*() and netmsg_pru_abort()
151 * will sofree() it when we return.
154 raw_uabort(netmsg_t msg)
156 struct rawcb *rp = sotorawcb(msg->base.nm_so);
161 soisdisconnected(msg->base.nm_so);
166 lwkt_replymsg(&msg->lmsg, error);
169 /* pru_accept is EOPNOTSUPP */
172 raw_uattach(netmsg_t msg)
174 struct socket *so = msg->base.nm_so;
175 int proto = msg->attach.nm_proto;
176 struct pru_attach_info *ai = msg->attach.nm_ai;
182 error = priv_check_cred(ai->p_ucred, PRIV_ROOT, NULL_CRED_OKAY);
184 error = raw_attach(so, proto, ai->sb_rlimit);
188 lwkt_replymsg(&msg->lmsg, error);
192 raw_ubind(netmsg_t msg)
194 lwkt_replymsg(&msg->lmsg, EINVAL);
198 raw_uconnect(netmsg_t msg)
200 lwkt_replymsg(&msg->lmsg, EINVAL);
203 /* pru_connect2 is EOPNOTSUPP */
204 /* pru_control is EOPNOTSUPP */
207 raw_udetach(netmsg_t msg)
209 struct rawcb *rp = sotorawcb(msg->base.nm_so);
218 lwkt_replymsg(&msg->lmsg, error);
222 raw_udisconnect(netmsg_t msg)
224 struct socket *so = msg->base.nm_so;
231 } else if (rp->rcb_faddr == NULL) {
236 soisdisconnected(so);
240 lwkt_replymsg(&msg->lmsg, error);
243 /* pru_listen is EOPNOTSUPP */
246 raw_upeeraddr(netmsg_t msg)
248 struct rawcb *rp = sotorawcb(msg->base.nm_so);
253 } else if (rp->rcb_faddr == NULL) {
256 *msg->peeraddr.nm_nam = dup_sockaddr(rp->rcb_faddr);
259 lwkt_replymsg(&msg->lmsg, error);
262 /* pru_rcvd is EOPNOTSUPP */
263 /* pru_rcvoob is EOPNOTSUPP */
266 raw_usend(netmsg_t msg)
268 struct socket *so = msg->base.nm_so;
269 struct mbuf *m = msg->send.nm_m;
270 struct mbuf *control = msg->send.nm_control;
271 struct rawcb *rp = sotorawcb(so);
272 struct pr_output_info oi;
273 int flags = msg->send.nm_flags;
281 if (flags & PRUS_OOB) {
286 if (control && control->m_len) {
290 if (msg->send.nm_addr) {
295 rp->rcb_faddr = msg->send.nm_addr;
296 } else if (rp->rcb_faddr == NULL) {
300 oi.p_pid = msg->send.nm_td->td_proc->p_pid;
301 error = (*so->so_proto->pr_output)(m, so, &oi);
303 if (msg->send.nm_addr)
304 rp->rcb_faddr = NULL;
308 lwkt_replymsg(&msg->lmsg, error);
311 /* pru_sense is null */
314 raw_ushutdown(netmsg_t msg)
316 struct rawcb *rp = sotorawcb(msg->base.nm_so);
320 socantsendmore(msg->base.nm_so);
325 lwkt_replymsg(&msg->lmsg, error);
329 raw_usockaddr(netmsg_t msg)
331 struct rawcb *rp = sotorawcb(msg->base.nm_so);
336 } else if (rp->rcb_laddr == NULL) {
339 *msg->sockaddr.nm_nam = dup_sockaddr(rp->rcb_laddr);
342 lwkt_replymsg(&msg->lmsg, error);
345 struct pr_usrreqs raw_usrreqs = {
346 .pru_abort = raw_uabort,
347 .pru_accept = pr_generic_notsupp,
348 .pru_attach = raw_uattach,
349 .pru_bind = raw_ubind,
350 .pru_connect = raw_uconnect,
351 .pru_connect2 = pr_generic_notsupp,
352 .pru_control = pr_generic_notsupp,
353 .pru_detach = raw_udetach,
354 .pru_disconnect = raw_udisconnect,
355 .pru_listen = pr_generic_notsupp,
356 .pru_peeraddr = raw_upeeraddr,
357 .pru_rcvd = pr_generic_notsupp,
358 .pru_rcvoob = pr_generic_notsupp,
359 .pru_send = raw_usend,
360 .pru_sense = pru_sense_null,
361 .pru_shutdown = raw_ushutdown,
362 .pru_sockaddr = raw_usockaddr,
363 .pru_sosend = sosend,
364 .pru_soreceive = soreceive