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33 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/net/raw_usrreq.c,v 1.18 1999/08/28 00:48:28 peter Exp $
35 * $DragonFly: src/sys/net/raw_usrreq.c,v 1.11 2006/01/14 11:05:17 swildner Exp $
38 #include <sys/param.h>
39 #include <sys/systm.h>
42 #include <sys/protosw.h>
43 #include <sys/socket.h>
44 #include <sys/socketvar.h>
46 #include <net/raw_cb.h>
49 * Initialize raw connection block q.
54 LIST_INIT(&rawcb_list);
59 * Raw protocol input routine. Find the socket
60 * associated with the packet(s) and move them over. If
61 * nothing exists for this packet, drop it.
64 * Raw protocol interface.
67 raw_input(struct mbuf *m0, struct sockproto *proto, const struct sockaddr *src,
68 const struct sockaddr *dst)
75 LIST_FOREACH(rp, &rawcb_list, list) {
76 if (rp->rcb_proto.sp_family != proto->sp_family)
78 if (rp->rcb_proto.sp_protocol &&
79 rp->rcb_proto.sp_protocol != proto->sp_protocol)
82 * We assume the lower level routines have
83 * placed the address in a canonical format
84 * suitable for a structure comparison.
86 * Note that if the lengths are not the same
87 * the comparison will fail at the first byte.
89 if (rp->rcb_laddr && !sa_equal(rp->rcb_laddr, dst))
91 if (rp->rcb_faddr && !sa_equal(rp->rcb_faddr, src))
96 n = m_copypacket(m, MB_DONTWAIT);
98 if (sbappendaddr(&last->so_rcv, src, n,
99 (struct mbuf *)0) == 0) {
100 /* should notify about lost packet */
107 last = rp->rcb_socket;
110 if (sbappendaddr(&last->so_rcv, src, m, (struct mbuf *)0) == 0)
121 raw_ctlinput(int cmd, struct sockaddr *arg, void *dummy)
124 if (cmd < 0 || cmd > PRC_NCMDS)
130 raw_uabort(struct socket *so)
132 struct rawcb *rp = sotorawcb(so);
138 soisdisconnected(so);
142 /* pru_accept is EOPNOTSUPP */
145 raw_uattach(struct socket *so, int proto, struct pru_attach_info *ai)
147 struct rawcb *rp = sotorawcb(so);
152 if ((error = suser_cred(ai->p_ucred, NULL_CRED_OKAY)) != 0)
154 return raw_attach(so, proto, ai->sb_rlimit);
158 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
164 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
169 /* pru_connect2 is EOPNOTSUPP */
170 /* pru_control is EOPNOTSUPP */
173 raw_udetach(struct socket *so)
175 struct rawcb *rp = sotorawcb(so);
185 raw_udisconnect(struct socket *so)
187 struct rawcb *rp = sotorawcb(so);
191 if (rp->rcb_faddr == NULL) {
195 soisdisconnected(so);
199 /* pru_listen is EOPNOTSUPP */
202 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
204 struct rawcb *rp = sotorawcb(so);
208 if (rp->rcb_faddr == NULL) {
211 *nam = dup_sockaddr(rp->rcb_faddr);
215 /* pru_rcvd is EOPNOTSUPP */
216 /* pru_rcvoob is EOPNOTSUPP */
219 raw_usend(struct socket *so, int flags, struct mbuf *m,
220 struct sockaddr *nam, struct mbuf *control, struct thread *td)
223 struct rawcb *rp = sotorawcb(so);
224 struct pr_output_info oi;
231 if (flags & PRUS_OOB) {
236 if (control && control->m_len) {
246 } else if (rp->rcb_faddr == NULL) {
250 oi.p_pid = td->td_proc->p_pid;
251 error = (*so->so_proto->pr_output)(m, so, &oi);
254 rp->rcb_faddr = NULL;
261 /* pru_sense is null */
264 raw_ushutdown(struct socket *so)
266 struct rawcb *rp = sotorawcb(so);
275 raw_usockaddr(struct socket *so, struct sockaddr **nam)
277 struct rawcb *rp = sotorawcb(so);
281 if (rp->rcb_laddr == NULL)
283 *nam = dup_sockaddr(rp->rcb_laddr);
287 struct pr_usrreqs raw_usrreqs = {
288 raw_uabort, pru_accept_notsupp, raw_uattach, raw_ubind, raw_uconnect,
289 pru_connect2_notsupp, pru_control_notsupp, raw_udetach,
290 raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
291 pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
292 raw_usockaddr, sosend, soreceive, sopoll