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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 1.7 2004/06/06 19:16:07 dillon 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(m0, proto, src, dst)
69 struct sockproto *proto;
70 struct sockaddr *src, *dst;
78 LIST_FOREACH(rp, &rawcb_list, list) {
79 if (rp->rcb_proto.sp_family != proto->sp_family)
81 if (rp->rcb_proto.sp_protocol &&
82 rp->rcb_proto.sp_protocol != proto->sp_protocol)
85 * We assume the lower level routines have
86 * placed the address in a canonical format
87 * suitable for a structure comparison.
89 * Note that if the lengths are not the same
90 * the comparison will fail at the first byte.
92 #define equal(a1, a2) \
93 (bcmp((caddr_t)(a1), (caddr_t)(a2), a1->sa_len) == 0)
94 if (rp->rcb_laddr && !equal(rp->rcb_laddr, dst))
96 if (rp->rcb_faddr && !equal(rp->rcb_faddr, src))
100 n = m_copy(m, 0, (int)M_COPYALL);
102 if (sbappendaddr(&last->so_rcv, src,
103 n, (struct mbuf *)0) == 0)
104 /* should notify about lost packet */
112 last = rp->rcb_socket;
115 if (sbappendaddr(&last->so_rcv, src,
116 m, (struct mbuf *)0) == 0)
128 raw_ctlinput(cmd, arg, dummy)
130 struct sockaddr *arg;
134 if (cmd < 0 || cmd > PRC_NCMDS)
140 raw_uabort(struct socket *so)
142 struct rawcb *rp = sotorawcb(so);
148 soisdisconnected(so);
152 /* pru_accept is EOPNOTSUPP */
155 raw_uattach(struct socket *so, int proto, struct pru_attach_info *ai)
157 struct rawcb *rp = sotorawcb(so);
162 if ((error = suser_cred(ai->p_ucred, NULL_CRED_OKAY)) != 0)
164 return raw_attach(so, proto, ai->sb_rlimit);
168 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
174 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
179 /* pru_connect2 is EOPNOTSUPP */
180 /* pru_control is EOPNOTSUPP */
183 raw_udetach(struct socket *so)
185 struct rawcb *rp = sotorawcb(so);
195 raw_udisconnect(struct socket *so)
197 struct rawcb *rp = sotorawcb(so);
201 if (rp->rcb_faddr == 0) {
205 soisdisconnected(so);
209 /* pru_listen is EOPNOTSUPP */
212 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
214 struct rawcb *rp = sotorawcb(so);
218 if (rp->rcb_faddr == 0) {
221 *nam = dup_sockaddr(rp->rcb_faddr);
225 /* pru_rcvd is EOPNOTSUPP */
226 /* pru_rcvoob is EOPNOTSUPP */
229 raw_usend(struct socket *so, int flags, struct mbuf *m,
230 struct sockaddr *nam, struct mbuf *control, struct thread *td)
233 struct rawcb *rp = sotorawcb(so);
234 struct pr_output_info oi;
241 if (flags & PRUS_OOB) {
246 if (control && control->m_len) {
256 } else if (rp->rcb_faddr == 0) {
260 oi.p_pid = td->td_proc->p_pid;
261 error = (*so->so_proto->pr_output)(m, so, &oi);
271 /* pru_sense is null */
274 raw_ushutdown(struct socket *so)
276 struct rawcb *rp = sotorawcb(so);
285 raw_usockaddr(struct socket *so, struct sockaddr **nam)
287 struct rawcb *rp = sotorawcb(so);
291 if (rp->rcb_laddr == 0)
293 *nam = dup_sockaddr(rp->rcb_laddr);
297 struct pr_usrreqs raw_usrreqs = {
298 raw_uabort, pru_accept_notsupp, raw_uattach, raw_ubind, raw_uconnect,
299 pru_connect2_notsupp, pru_control_notsupp, raw_udetach,
300 raw_udisconnect, pru_listen_notsupp, raw_upeeraddr, pru_rcvd_notsupp,
301 pru_rcvoob_notsupp, raw_usend, pru_sense_null, raw_ushutdown,
302 raw_usockaddr, sosend, soreceive, sopoll