1/*-
2 * Copyright (c) 1998 Mark Newton
3 * Copyright (c) 1995 Christos Zoulas
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD$");
31
32#include <sys/param.h>
33#include <sys/proc.h>
34#include <sys/systm.h>
35#include <sys/file.h>
36#include <sys/filedesc.h>
37#include <sys/sockio.h>
38#include <sys/socket.h>
39
40#include <net/if.h>
41#include <net/vnet.h>
42
43#include <compat/svr4/svr4.h>
44#include <compat/svr4/svr4_util.h>
45#include <compat/svr4/svr4_ioctl.h>
46#include <compat/svr4/svr4_sockio.h>
47
48static int bsd_to_svr4_flags(int);
49
50#define bsd_to_svr4_flag(a) \
51	if (bf & __CONCAT(I,a))	sf |= __CONCAT(SVR4_I,a)
52
53static int
54bsd_to_svr4_flags(bf)
55	int bf;
56{
57	int sf = 0;
58	bsd_to_svr4_flag(FF_UP);
59	bsd_to_svr4_flag(FF_BROADCAST);
60	bsd_to_svr4_flag(FF_DEBUG);
61	bsd_to_svr4_flag(FF_LOOPBACK);
62	bsd_to_svr4_flag(FF_POINTOPOINT);
63#if defined(IFF_NOTRAILERS)
64	bsd_to_svr4_flag(FF_NOTRAILERS);
65#endif
66	if (bf & IFF_DRV_RUNNING)
67		sf |= SVR4_IFF_RUNNING;
68	bsd_to_svr4_flag(FF_NOARP);
69	bsd_to_svr4_flag(FF_PROMISC);
70	bsd_to_svr4_flag(FF_ALLMULTI);
71	bsd_to_svr4_flag(FF_MULTICAST);
72	return sf;
73}
74
75int
76svr4_sock_ioctl(fp, td, retval, fd, cmd, data)
77	struct file *fp;
78	struct thread *td;
79	register_t *retval;
80	int fd;
81	u_long cmd;
82	caddr_t data;
83{
84	int error;
85
86	*retval = 0;
87
88	switch (cmd) {
89	case SVR4_SIOCGIFNUM:
90		{
91			struct ifnet *ifp;
92			struct ifaddr *ifa;
93			int ifnum = 0;
94
95			/*
96			 * This does not return the number of physical
97			 * interfaces (if_index), but the number of interfaces
98			 * + addresses like ifconf() does, because this number
99			 * is used by code that will call SVR4_SIOCGIFCONF to
100			 * find the space needed for SVR4_SIOCGIFCONF. So we
101			 * count the number of ifreq entries that the next
102			 * SVR4_SIOCGIFCONF will return. Maybe a more correct
103			 * fix is to make SVR4_SIOCGIFCONF return only one
104			 * entry per physical interface?
105			 */
106			IFNET_RLOCK();
107			TAILQ_FOREACH(ifp, &V_ifnet, if_link)
108				if (TAILQ_EMPTY(&ifp->if_addrhead))
109					ifnum++;
110				else
111					TAILQ_FOREACH(ifa, &ifp->if_addrhead,
112					    ifa_link)
113						ifnum++;
114			IFNET_RUNLOCK();
115			DPRINTF(("SIOCGIFNUM %d\n", ifnum));
116			return copyout(&ifnum, data, sizeof(ifnum));
117		}
118
119	case SVR4_SIOCGIFFLAGS:
120		{
121			struct ifreq br;
122			struct svr4_ifreq sr;
123
124			if ((error = copyin(data, &sr, sizeof(sr))) != 0)
125				return error;
126
127			(void) strlcpy(br.ifr_name, sr.svr4_ifr_name,
128			    sizeof(br.ifr_name));
129			if ((error = fo_ioctl(fp, SIOCGIFFLAGS,
130					    (caddr_t) &br, td->td_ucred,
131					    td)) != 0) {
132				DPRINTF(("SIOCGIFFLAGS (%s) %s: error %d\n",
133					 br.ifr_name, sr.svr4_ifr_name, error));
134				return error;
135			}
136
137			sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags);
138			DPRINTF(("SIOCGIFFLAGS %s = %x\n",
139				sr.svr4_ifr_name, sr.svr4_ifr_flags));
140			return copyout(&sr, data, sizeof(sr));
141		}
142
143	case SVR4_SIOCGIFCONF:
144		{
145			struct svr4_ifconf sc;
146
147			if ((error = copyin(data, &sc, sizeof(sc))) != 0)
148				return error;
149
150			DPRINTF(("ifreq %d svr4_ifreq %d ifc_len %d\n",
151				sizeof(struct ifreq), sizeof(struct svr4_ifreq),
152				sc.svr4_ifc_len));
153
154			if ((error = fo_ioctl(fp, OSIOCGIFCONF,
155					    (caddr_t) &sc, td->td_ucred,
156					    td)) != 0)
157				return error;
158
159			DPRINTF(("SIOCGIFCONF\n"));
160			return 0;
161		}
162
163
164	default:
165		DPRINTF(("Unknown svr4 sockio %lx\n", cmd));
166		return 0;	/* ENOSYS really */
167	}
168}
169