1/*-
2 * Copyright (c) 1994, 1995 Scott Bartram
3 * Copyright (c) 1994 Arne H Juul
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. The name of the author may not be used to endorse or promote products
12 * derived from this software without specific prior written permission
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
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27__FBSDID("$FreeBSD: head/sys/i386/ibcs2/ibcs2_socksys.c 164033 2006-11-06 13:42:10Z rwatson $");
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| 27__FBSDID("$FreeBSD: head/sys/i386/ibcs2/ibcs2_socksys.c 180291 2008-07-05 13:10:10Z rwatson $"); |
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/sysproto.h>
32#include <sys/jail.h>
33#include <sys/kernel.h>
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34#include <sys/lock.h>
35#include <sys/mutex.h> |
36#include <sys/sysctl.h>
37
38#include <i386/ibcs2/ibcs2_socksys.h>
39#include <i386/ibcs2/ibcs2_util.h>
40
41/* Local structures */
42struct getipdomainname_args {
43 char *ipdomainname;
44 int len;
45};
46
47struct setipdomainname_args {
48 char *ipdomainname;
49 int len;
50};
51
52/* Local prototypes */
53static int ibcs2_getipdomainname(struct thread *,
54 struct getipdomainname_args *);
55static int ibcs2_setipdomainname(struct thread *,
56 struct setipdomainname_args *);
57
58/*
59 * iBCS2 socksys calls.
60 */
61
62int
63ibcs2_socksys(td, uap)
64 register struct thread *td;
65 register struct ibcs2_socksys_args *uap;
66{
67 int error;
68 int realargs[7]; /* 1 for command, 6 for recvfrom */
69 void *passargs;
70
71 /*
72 * SOCKET should only be legal on /dev/socksys.
73 * GETIPDOMAINNAME should only be legal on /dev/socksys ?
74 * The others are (and should be) only legal on sockets.
75 */
76
77 if ((error = copyin(uap->argsp, (caddr_t)realargs, sizeof(realargs))) != 0)
78 return error;
79 DPRINTF(("ibcs2_socksys: %08x %08x %08x %08x %08x %08x %08x\n",
80 realargs[0], realargs[1], realargs[2], realargs[3],
81 realargs[4], realargs[5], realargs[6]));
82
83 passargs = (void *)(realargs + 1);
84 switch (realargs[0]) {
85 case SOCKSYS_ACCEPT:
86 return accept(td, passargs);
87 case SOCKSYS_BIND:
88 return bind(td, passargs);
89 case SOCKSYS_CONNECT:
90 return connect(td, passargs);
91 case SOCKSYS_GETPEERNAME:
92 return getpeername(td, passargs);
93 case SOCKSYS_GETSOCKNAME:
94 return getsockname(td, passargs);
95 case SOCKSYS_GETSOCKOPT:
96 return getsockopt(td, passargs);
97 case SOCKSYS_LISTEN:
98 return listen(td, passargs);
99 case SOCKSYS_RECV:
100 realargs[5] = realargs[6] = 0;
101 /* FALLTHROUGH */
102 case SOCKSYS_RECVFROM:
103 return recvfrom(td, passargs);
104 case SOCKSYS_SEND:
105 realargs[5] = realargs[6] = 0;
106 /* FALLTHROUGH */
107 case SOCKSYS_SENDTO:
108 return sendto(td, passargs);
109 case SOCKSYS_SETSOCKOPT:
110 return setsockopt(td, passargs);
111 case SOCKSYS_SHUTDOWN:
112 return shutdown(td, passargs);
113 case SOCKSYS_SOCKET:
114 return socket(td, passargs);
115 case SOCKSYS_SELECT:
116 return select(td, passargs);
117 case SOCKSYS_GETIPDOMAIN:
118 return ibcs2_getipdomainname(td, passargs);
119 case SOCKSYS_SETIPDOMAIN:
120 return ibcs2_setipdomainname(td, passargs);
121 case SOCKSYS_ADJTIME:
122 return adjtime(td, passargs);
123 case SOCKSYS_SETREUID:
124 return setreuid(td, passargs);
125 case SOCKSYS_SETREGID:
126 return setregid(td, passargs);
127 case SOCKSYS_GETTIME:
128 return gettimeofday(td, passargs);
129 case SOCKSYS_SETTIME:
130 return settimeofday(td, passargs);
131 case SOCKSYS_GETITIMER:
132 return getitimer(td, passargs);
133 case SOCKSYS_SETITIMER:
134 return setitimer(td, passargs);
135
136 default:
137 printf("socksys unknown %08x %08x %08x %08x %08x %08x %08x\n",
138 realargs[0], realargs[1], realargs[2], realargs[3],
139 realargs[4], realargs[5], realargs[6]);
140 return EINVAL;
141 }
142 /* NOTREACHED */
143}
144
145/* ARGSUSED */
146static int
147ibcs2_getipdomainname(td, uap)
148 struct thread *td;
149 struct getipdomainname_args *uap;
150{
151 char hname[MAXHOSTNAMELEN], *dptr;
152 int len;
153
154 /* Get the domain name */
155 getcredhostname(td->td_ucred, hname, sizeof(hname));
156
157 dptr = index(hname, '.');
158 if ( dptr )
159 dptr++;
160 else
161 /* Make it effectively an empty string */
162 dptr = hname + strlen(hname);
163
164 len = strlen(dptr) + 1;
165 if ((u_int)uap->len > len + 1)
166 uap->len = len + 1;
167 return (copyout((caddr_t)dptr, (caddr_t)uap->ipdomainname, uap->len));
168}
169
170/* ARGSUSED */
171static int
172ibcs2_setipdomainname(td, uap)
173 struct thread *td;
174 struct setipdomainname_args *uap;
175{
176 char hname[MAXHOSTNAMELEN], *ptr;
177 int error, sctl[2], hlen;
178
179 /* W/out a hostname a domain-name is nonsense */
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178 if ( strlen(hostname) == 0 )
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180 mtx_lock(&hostname_mtx);
181 if ( strlen(hostname) == 0 ) {
182 mtx_unlock(&hostname_mtx); |
183 return EINVAL;
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| 184 } |
185
186 /* Get the host's unqualified name (strip off the domain) */
187 snprintf(hname, sizeof(hname), "%s", hostname);
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| 188 mtx_unlock(&hostname_mtx); |
189 ptr = index(hname, '.');
190 if ( ptr != NULL ) {
191 ptr++;
192 *ptr = '\0';
193 } else {
194 if (strlcat(hname, ".", sizeof(hname)) >= sizeof(hname))
195 return (EINVAL);
196 }
197
198 /* Set ptr to the end of the string so we can append to it */
199 hlen = strlen(hname);
200 ptr = hname + hlen;
201 if ((u_int)uap->len > (sizeof (hname) - hlen - 1))
202 return EINVAL;
203
204 /* Append the ipdomain to the end */
205 error = copyinstr((caddr_t)uap->ipdomainname, ptr, uap->len, NULL);
206 if (error)
207 return (error);
208
209 /* 'sethostname' with the new information */
210 sctl[0] = CTL_KERN;
211 sctl[1] = KERN_HOSTNAME;
212 hlen = strlen(hname) + 1;
213 return (kernel_sysctl(td, sctl, 2, 0, 0, hname, hlen, 0, 0));
214}
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