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/if_var.h>
42 #include <net/vnet.h>
43
44 #include <compat/svr4/svr4.h>
45 #include <compat/svr4/svr4_util.h>
46 #include <compat/svr4/svr4_ioctl.h>
47 #include <compat/svr4/svr4_sockio.h>
48
49 static int bsd_to_svr4_flags(int);
50
51 #define bsd_to_svr4_flag(a) \
52 if (bf & __CONCAT(I,a)) sf |= __CONCAT(SVR4_I,a)
53
54 static int
bsd_to_svr4_flags(bf)55 bsd_to_svr4_flags(bf)
56 int bf;
57 {
58 int sf = 0;
59 bsd_to_svr4_flag(FF_UP);
60 bsd_to_svr4_flag(FF_BROADCAST);
61 bsd_to_svr4_flag(FF_DEBUG);
62 bsd_to_svr4_flag(FF_LOOPBACK);
63 bsd_to_svr4_flag(FF_POINTOPOINT);
64 #if defined(IFF_NOTRAILERS)
65 bsd_to_svr4_flag(FF_NOTRAILERS);
66 #endif
67 if (bf & IFF_DRV_RUNNING)
68 sf |= SVR4_IFF_RUNNING;
69 bsd_to_svr4_flag(FF_NOARP);
70 bsd_to_svr4_flag(FF_PROMISC);
71 bsd_to_svr4_flag(FF_ALLMULTI);
72 bsd_to_svr4_flag(FF_MULTICAST);
73 return sf;
74 }
75
76 int
svr4_sock_ioctl(fp,td,retval,fd,cmd,data)77 svr4_sock_ioctl(fp, td, retval, fd, cmd, data)
78 struct file *fp;
79 struct thread *td;
80 register_t *retval;
81 int fd;
82 u_long cmd;
83 caddr_t data;
84 {
85 int error;
86
87 *retval = 0;
88
89 switch (cmd) {
90 case SVR4_SIOCGIFNUM:
91 {
92 struct ifnet *ifp;
93 struct ifaddr *ifa;
94 int ifnum = 0;
95
96 /*
97 * This does not return the number of physical
98 * interfaces (if_index), but the number of interfaces
99 * + addresses like ifconf() does, because this number
100 * is used by code that will call SVR4_SIOCGIFCONF to
101 * find the space needed for SVR4_SIOCGIFCONF. So we
102 * count the number of ifreq entries that the next
103 * SVR4_SIOCGIFCONF will return. Maybe a more correct
104 * fix is to make SVR4_SIOCGIFCONF return only one
105 * entry per physical interface?
106 */
107 IFNET_RLOCK();
108 TAILQ_FOREACH(ifp, &V_ifnet, if_link)
109 if (TAILQ_EMPTY(&ifp->if_addrhead))
110 ifnum++;
111 else
112 TAILQ_FOREACH(ifa, &ifp->if_addrhead,
113 ifa_link)
114 ifnum++;
115 IFNET_RUNLOCK();
116 DPRINTF(("SIOCGIFNUM %d\n", ifnum));
117 return copyout(&ifnum, data, sizeof(ifnum));
118 }
119
120 case SVR4_SIOCGIFFLAGS:
121 {
122 struct ifreq br;
123 struct svr4_ifreq sr;
124
125 if ((error = copyin(data, &sr, sizeof(sr))) != 0)
126 return error;
127
128 (void) strlcpy(br.ifr_name, sr.svr4_ifr_name,
129 sizeof(br.ifr_name));
130 if ((error = fo_ioctl(fp, SIOCGIFFLAGS,
131 (caddr_t) &br, td->td_ucred,
132 td)) != 0) {
133 DPRINTF(("SIOCGIFFLAGS (%s) %s: error %d\n",
134 br.ifr_name, sr.svr4_ifr_name, error));
135 return error;
136 }
137
138 sr.svr4_ifr_flags = bsd_to_svr4_flags(br.ifr_flags);
139 DPRINTF(("SIOCGIFFLAGS %s = %x\n",
140 sr.svr4_ifr_name, sr.svr4_ifr_flags));
141 return copyout(&sr, data, sizeof(sr));
142 }
143
144 case SVR4_SIOCGIFCONF:
145 {
146 struct svr4_ifconf sc;
147 struct ifconf *ifc;
148
149 if ((error = copyin(data, &sc, sizeof(sc))) != 0)
150 return error;
151
152 DPRINTF(("ifreq %d svr4_ifreq %d ifc_len %d\n",
153 sizeof(struct ifreq), sizeof(struct svr4_ifreq),
154 sc.svr4_ifc_len));
155
156 ifc = (struct ifconf *)≻
157 ifc->ifc_req->ifr_addr.sa_family =
158 sc.svr4_ifc_req->svr4_ifr_addr.sa_family;
159 ifc->ifc_req->ifr_addr.sa_len =
160 sizeof(struct osockaddr);
161
162 error = fo_ioctl(fp, SIOCGIFCONF, &sc, td->td_ucred,
163 td);
164
165 sc.svr4_ifc_req->svr4_ifr_addr.sa_family =
166 ifc->ifc_req->ifr_addr.sa_family;
167
168 if (error != 0)
169 return error;
170
171 DPRINTF(("SIOCGIFCONF\n"));
172 return 0;
173 }
174
175
176 default:
177 DPRINTF(("Unknown svr4 sockio %lx\n", cmd));
178 return 0; /* ENOSYS really */
179 }
180 }
181