Commit | Line | Data |
---|---|---|
7bcd1bb8 KB |
1 | /*- |
2 | * Copyright (c) 1991 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * %sccs.include.redist.c% | |
6 | * | |
97f0cba7 | 7 | * @(#)clnp_raw.c 7.9 (Berkeley) %G% |
7bcd1bb8 KB |
8 | */ |
9 | ||
4f565be6 KS |
10 | /*********************************************************** |
11 | Copyright IBM Corporation 1987 | |
986fd057 KS |
12 | |
13 | All Rights Reserved | |
14 | ||
15 | Permission to use, copy, modify, and distribute this software and its | |
16 | documentation for any purpose and without fee is hereby granted, | |
17 | provided that the above copyright notice appear in all copies and that | |
18 | both that copyright notice and this permission notice appear in | |
19 | supporting documentation, and that the name of IBM not be | |
20 | used in advertising or publicity pertaining to distribution of the | |
21 | software without specific, written prior permission. | |
22 | ||
23 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
24 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
25 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
26 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
27 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
28 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
29 | SOFTWARE. | |
30 | ||
31 | ******************************************************************/ | |
32 | ||
33 | /* | |
34 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison | |
35 | */ | |
36 | /* $Header: clnp_raw.c,v 4.2 88/06/29 14:58:56 hagens Exp $ */ | |
37 | /* $Source: /usr/argo/sys/netiso/RCS/clnp_raw.c,v $ */ | |
986fd057 | 38 | |
e663c139 KM |
39 | #include "param.h" |
40 | #include "mbuf.h" | |
41 | #include "domain.h" | |
42 | #include "protosw.h" | |
43 | #include "socket.h" | |
44 | #include "socketvar.h" | |
45 | #include "errno.h" | |
46 | #include "time.h" | |
986fd057 KS |
47 | |
48 | #include "../net/if.h" | |
49 | #include "../net/route.h" | |
50 | #include "../net/raw_cb.h" | |
51 | ||
a50e2bc0 KS |
52 | #include "iso.h" |
53 | #include "iso_pcb.h" | |
54 | #include "clnp.h" | |
55 | #include "clnp_stat.h" | |
56 | #include "argo_debug.h" | |
986fd057 | 57 | |
a50e2bc0 KS |
58 | #include "tp_user.h"/* XXX -- defines SOL_NETWORK */ |
59 | ||
986fd057 KS |
60 | struct sockproto rclnp_proto = { PF_ISO, 0 }; |
61 | /* | |
62 | * FUNCTION: rclnp_input | |
63 | * | |
64 | * PURPOSE: Setup generic address an protocol structures for | |
65 | * raw input routine, then pass them along with the | |
66 | * mbuf chain. | |
67 | * | |
68 | * RETURNS: none | |
69 | * | |
70 | * SIDE EFFECTS: | |
71 | * | |
72 | * NOTES: The protocol field of rclnp_proto is set to zero indicating | |
73 | * no protocol. | |
74 | */ | |
75 | rclnp_input(m, src, dst, hdrlen) | |
76 | struct mbuf *m; /* ptr to packet */ | |
dea3dc96 KS |
77 | struct sockaddr_iso *src; /* ptr to src address */ |
78 | struct sockaddr_iso *dst; /* ptr to dest address */ | |
986fd057 KS |
79 | int hdrlen; /* length (in bytes) of clnp header */ |
80 | { | |
81 | #ifdef TROLL | |
82 | if (trollctl.tr_ops & TR_CHUCK) { | |
83 | m_freem(m); | |
84 | return; | |
85 | } | |
86 | #endif TROLL | |
87 | ||
dea3dc96 KS |
88 | if (raw_input(m, &rclnp_proto, (struct sockaddr *)src, |
89 | (struct sockaddr *)dst) == 0) { | |
4f565be6 KS |
90 | clnp_stat.cns_delivered--; |
91 | clnp_stat.cns_noproto++; | |
92 | } | |
986fd057 KS |
93 | } |
94 | ||
95 | /* | |
96 | * FUNCTION: rclnp_output | |
97 | * | |
98 | * PURPOSE: Prepare to send a raw clnp packet. Setup src and dest | |
99 | * addresses, count the number of bytes to send, and | |
100 | * call clnp_output. | |
101 | * | |
102 | * RETURNS: success - 0 | |
103 | * failure - an appropriate error code | |
104 | * | |
105 | * SIDE EFFECTS: | |
106 | * | |
107 | * NOTES: | |
108 | */ | |
109 | rclnp_output(m0, so) | |
110 | struct mbuf *m0; /* packet to send */ | |
111 | struct socket *so; /* socket to send from */ | |
112 | { | |
113 | register struct mbuf *m; /* used to scan a chain */ | |
114 | int len = 0; /* store length of chain here */ | |
a50e2bc0 | 115 | struct rawisopcb *rp = sotorawisopcb(so); /* ptr to raw cb */ |
986fd057 | 116 | int error; /* return value of function */ |
a50e2bc0 | 117 | int flags; /* flags for clnp_output */ |
986fd057 | 118 | |
97f0cba7 | 119 | if (0 == (m0->m_flags & M_PKTHDR)) |
44f52ea5 | 120 | return (EINVAL); |
986fd057 KS |
121 | /* |
122 | * Set up src address. If user has bound socket to an address, use it. | |
123 | * Otherwise, do not specify src (clnp_output will fill it in). | |
124 | */ | |
a50e2bc0 KS |
125 | if (rp->risop_rcb.rcb_laddr) { |
126 | if (rp->risop_isop.isop_sladdr.siso_family != AF_ISO) { | |
127 | bad: | |
986fd057 KS |
128 | m_freem(m0); |
129 | return(EAFNOSUPPORT); | |
130 | } | |
986fd057 | 131 | } |
986fd057 | 132 | /* set up dest address */ |
a50e2bc0 KS |
133 | if (rp->risop_rcb.rcb_faddr == 0) |
134 | goto bad; | |
135 | rp->risop_isop.isop_sfaddr = | |
136 | *(struct sockaddr_iso *)rp->risop_rcb.rcb_faddr; | |
137 | rp->risop_isop.isop_faddr = &rp->risop_isop.isop_sfaddr; | |
986fd057 KS |
138 | |
139 | /* get flags and ship it off */ | |
a50e2bc0 | 140 | flags = rp->risop_flags & CLNP_VFLAGS; |
986fd057 | 141 | |
44f52ea5 KS |
142 | error = clnp_output(m0, &rp->risop_isop, m0->m_pkthdr.len, |
143 | flags|CLNP_NOCACHE); | |
986fd057 KS |
144 | |
145 | return (error); | |
146 | } | |
147 | ||
148 | /* | |
149 | * FUNCTION: rclnp_ctloutput | |
150 | * | |
151 | * PURPOSE: Raw clnp socket option processing | |
152 | * All options are stored inside an mbuf. | |
153 | * | |
154 | * RETURNS: success - 0 | |
155 | * failure - unix error code | |
156 | * | |
157 | * SIDE EFFECTS: If the options mbuf does not exist, it the mbuf passed | |
158 | * is used. | |
159 | * | |
160 | * NOTES: | |
161 | */ | |
162 | rclnp_ctloutput(op, so, level, optname, m) | |
163 | int op; /* type of operation */ | |
164 | struct socket *so; /* ptr to socket */ | |
165 | int level; /* level of option */ | |
166 | int optname; /* name of option */ | |
167 | struct mbuf **m; /* ptr to ptr to option data */ | |
168 | { | |
169 | int error = 0; | |
a50e2bc0 | 170 | register struct rawisopcb *rp = sotorawisopcb(so);/* raw cb ptr */ |
986fd057 KS |
171 | |
172 | IFDEBUG(D_CTLOUTPUT) | |
173 | printf("rclnp_ctloutput: op = x%x, level = x%x, name = x%x\n", | |
174 | op, level, optname); | |
175 | if (*m != NULL) { | |
176 | printf("rclnp_ctloutput: %d bytes of mbuf data\n", (*m)->m_len); | |
177 | dump_buf(mtod((*m), caddr_t), (*m)->m_len); | |
178 | } | |
179 | ENDDEBUG | |
180 | ||
181 | #ifdef SOL_NETWORK | |
182 | if (level != SOL_NETWORK) | |
183 | error = EINVAL; | |
184 | else switch (op) { | |
185 | #else | |
186 | switch (op) { | |
187 | #endif SOL_NETWORK | |
188 | case PRCO_SETOPT: | |
189 | switch (optname) { | |
190 | case CLNPOPT_FLAGS: { | |
191 | u_short usr_flags; | |
192 | /* | |
193 | * Insure that the data passed has exactly one short in it | |
194 | */ | |
195 | if ((*m == NULL) || ((*m)->m_len != sizeof(short))) { | |
196 | error = EINVAL; | |
197 | break; | |
198 | } | |
199 | ||
200 | /* | |
201 | * Don't allow invalid flags to be set | |
202 | */ | |
203 | usr_flags = (*mtod((*m), short *)); | |
204 | ||
205 | if ((usr_flags & (CLNP_VFLAGS)) != usr_flags) { | |
206 | error = EINVAL; | |
207 | } else | |
a50e2bc0 | 208 | rp->risop_flags |= usr_flags; |
986fd057 KS |
209 | |
210 | } break; | |
211 | ||
212 | case CLNPOPT_OPTS: | |
a50e2bc0 KS |
213 | if (error = clnp_set_opts(&rp->risop_isop.isop_options, m)) |
214 | break; | |
215 | rp->risop_isop.isop_optindex = m_get(M_WAIT, MT_SOOPTS); | |
216 | (void) clnp_opt_sanity(rp->risop_isop.isop_options, | |
217 | mtod(rp->risop_isop.isop_options, caddr_t), | |
218 | rp->risop_isop.isop_options->m_len, | |
219 | mtod(rp->risop_isop.isop_optindex, | |
220 | struct clnp_optidx *)); | |
986fd057 KS |
221 | break; |
222 | } | |
223 | break; | |
224 | ||
225 | case PRCO_GETOPT: | |
226 | #ifdef notdef | |
227 | /* commented out to keep hi C quiet */ | |
228 | switch (optname) { | |
229 | default: | |
230 | error = EINVAL; | |
231 | break; | |
232 | } | |
233 | #endif notdef | |
234 | break; | |
235 | default: | |
236 | error = EINVAL; | |
237 | break; | |
238 | } | |
239 | if (op == PRCO_SETOPT) { | |
240 | /* note: m_freem does not barf is *m is NULL */ | |
241 | m_freem(*m); | |
242 | *m = NULL; | |
243 | } | |
244 | ||
245 | return error; | |
246 | } | |
247 | ||
248 | /*ARGSUSED*/ | |
118a1fb8 | 249 | clnp_usrreq(so, req, m, nam, control) |
a50e2bc0 | 250 | register struct socket *so; |
986fd057 | 251 | int req; |
118a1fb8 | 252 | struct mbuf *m, *nam, *control; |
986fd057 | 253 | { |
a50e2bc0 KS |
254 | register int error = 0; |
255 | register struct rawisopcb *rp = sotorawisopcb(so); | |
256 | ||
257 | rp = sotorawisopcb(so); | |
258 | switch (req) { | |
259 | ||
260 | case PRU_ATTACH: | |
261 | if (rp) | |
262 | panic("rip_attach"); | |
263 | MALLOC(rp, struct rawisopcb *, sizeof *rp, M_PCB, M_WAITOK); | |
264 | if (rp == 0) | |
265 | return (ENOBUFS); | |
266 | bzero((caddr_t)rp, sizeof *rp); | |
267 | so->so_pcb = (caddr_t)rp; | |
268 | break; | |
269 | ||
270 | case PRU_DETACH: | |
271 | if (rp == 0) | |
272 | panic("rip_detach"); | |
273 | if (rp->risop_isop.isop_options) | |
274 | m_freem(rp->risop_isop.isop_options); | |
275 | if (rp->risop_isop.isop_route.ro_rt) | |
276 | RTFREE(rp->risop_isop.isop_route.ro_rt); | |
277 | if (rp->risop_rcb.rcb_laddr) | |
278 | rp->risop_rcb.rcb_laddr = 0; | |
279 | /* free clnp cached hdr if necessary */ | |
280 | if (rp->risop_isop.isop_clnpcache != NULL) { | |
281 | struct clnp_cache *clcp = | |
282 | mtod(rp->risop_isop.isop_clnpcache, struct clnp_cache *); | |
283 | if (clcp->clc_hdr != NULL) { | |
284 | m_free(clcp->clc_hdr); | |
285 | } | |
286 | m_free(rp->risop_isop.isop_clnpcache); | |
287 | } | |
288 | if (rp->risop_isop.isop_optindex != NULL) | |
289 | m_free(rp->risop_isop.isop_optindex); | |
290 | ||
291 | break; | |
292 | ||
293 | case PRU_BIND: | |
294 | { | |
295 | struct sockaddr_iso *addr = mtod(nam, struct sockaddr_iso *); | |
296 | ||
297 | if (nam->m_len != sizeof(*addr)) | |
298 | return (EINVAL); | |
299 | if ((ifnet == 0) || | |
300 | (addr->siso_family != AF_ISO) || | |
301 | (addr->siso_addr.isoa_len && | |
302 | ifa_ifwithaddr((struct sockaddr *)addr) == 0)) | |
303 | return (EADDRNOTAVAIL); | |
304 | rp->risop_isop.isop_sladdr = *addr; | |
305 | rp->risop_rcb.rcb_laddr = (struct sockaddr *) | |
306 | (rp->risop_isop.isop_laddr = &rp->risop_isop.isop_sladdr); | |
307 | return (0); | |
308 | } | |
309 | case PRU_CONNECT: | |
310 | { | |
311 | struct sockaddr_iso *addr = mtod(nam, struct sockaddr_iso *); | |
312 | ||
313 | if ((nam->m_len > sizeof(*addr)) || (addr->siso_len > sizeof(*addr))) | |
314 | return (EINVAL); | |
315 | if (ifnet == 0) | |
316 | return (EADDRNOTAVAIL); | |
317 | if (addr->siso_family != AF_ISO) | |
318 | rp->risop_isop.isop_sfaddr = *addr; | |
319 | rp->risop_rcb.rcb_faddr = (struct sockaddr *) | |
320 | (rp->risop_isop.isop_faddr = &rp->risop_isop.isop_sfaddr); | |
321 | soisconnected(so); | |
322 | return (0); | |
323 | } | |
324 | } | |
118a1fb8 | 325 | error = raw_usrreq(so, req, m, nam, control); |
a50e2bc0 KS |
326 | |
327 | if (error && req == PRU_ATTACH && so->so_pcb) | |
328 | free((caddr_t)rp, M_PCB); | |
329 | return (error); | |
986fd057 | 330 | } |