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>
27 __FBSDID("$FreeBSD$");
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>
34 #include <sys/sysctl.h>
35
36 #include <i386/ibcs2/ibcs2_socksys.h>
37 #include <i386/ibcs2/ibcs2_util.h>
38
39 /* Local structures */
40 struct getipdomainname_args {
41 char *ipdomainname;
42 int len;
43 };
44
45 struct setipdomainname_args {
46 char *ipdomainname;
47 int len;
48 };
49
50 /* Local prototypes */
51 static int ibcs2_getipdomainname(struct thread *,
52 struct getipdomainname_args *);
53 static int ibcs2_setipdomainname(struct thread *,
54 struct setipdomainname_args *);
55
56 /*
57 * iBCS2 socksys calls.
58 */
59
60 int
61 ibcs2_socksys(struct thread *td, struct ibcs2_socksys_args *uap)
62 {
63 int error;
64 int realargs[7]; /* 1 for command, 6 for recvfrom */
65 void *passargs;
66
67 /*
68 * SOCKET should only be legal on /dev/socksys.
69 * GETIPDOMAINNAME should only be legal on /dev/socksys ?
70 * The others are (and should be) only legal on sockets.
71 */
72
73 if ((error = copyin(uap->argsp, (caddr_t)realargs, sizeof(realargs))) != 0)
74 return error;
75 DPRINTF(("ibcs2_socksys: %08x %08x %08x %08x %08x %08x %08x\n",
76 realargs[0], realargs[1], realargs[2], realargs[3],
77 realargs[4], realargs[5], realargs[6]));
78
79 passargs = (void *)(realargs + 1);
80 switch (realargs[0]) {
81 case SOCKSYS_ACCEPT:
82 return sys_accept(td, passargs);
83 case SOCKSYS_BIND:
84 return sys_bind(td, passargs);
85 case SOCKSYS_CONNECT:
86 return sys_connect(td, passargs);
87 case SOCKSYS_GETPEERNAME:
88 return sys_getpeername(td, passargs);
89 case SOCKSYS_GETSOCKNAME:
90 return sys_getsockname(td, passargs);
91 case SOCKSYS_GETSOCKOPT:
92 return sys_getsockopt(td, passargs);
93 case SOCKSYS_LISTEN:
94 return sys_listen(td, passargs);
95 case SOCKSYS_RECV:
96 realargs[5] = realargs[6] = 0;
97 /* FALLTHROUGH */
98 case SOCKSYS_RECVFROM:
99 return sys_recvfrom(td, passargs);
100 case SOCKSYS_SEND:
101 realargs[5] = realargs[6] = 0;
102 /* FALLTHROUGH */
103 case SOCKSYS_SENDTO:
104 return sys_sendto(td, passargs);
105 case SOCKSYS_SETSOCKOPT:
106 return sys_setsockopt(td, passargs);
107 case SOCKSYS_SHUTDOWN:
108 return sys_shutdown(td, passargs);
109 case SOCKSYS_SOCKET:
110 return sys_socket(td, passargs);
111 case SOCKSYS_SELECT:
112 return sys_select(td, passargs);
113 case SOCKSYS_GETIPDOMAIN:
114 return ibcs2_getipdomainname(td, passargs);
115 case SOCKSYS_SETIPDOMAIN:
116 return ibcs2_setipdomainname(td, passargs);
117 case SOCKSYS_ADJTIME:
118 return sys_adjtime(td, passargs);
119 case SOCKSYS_SETREUID:
120 return sys_setreuid(td, passargs);
121 case SOCKSYS_SETREGID:
122 return sys_setregid(td, passargs);
123 case SOCKSYS_GETTIME:
124 return sys_gettimeofday(td, passargs);
125 case SOCKSYS_SETTIME:
126 return sys_settimeofday(td, passargs);
127 case SOCKSYS_GETITIMER:
128 return sys_getitimer(td, passargs);
129 case SOCKSYS_SETITIMER:
130 return sys_setitimer(td, passargs);
131
132 default:
133 printf("socksys unknown %08x %08x %08x %08x %08x %08x %08x\n",
134 realargs[0], realargs[1], realargs[2], realargs[3],
135 realargs[4], realargs[5], realargs[6]);
136 return EINVAL;
137 }
138 /* NOTREACHED */
139 }
140
141 /* ARGSUSED */
142 static int
143 ibcs2_getipdomainname(struct thread *td, struct getipdomainname_args *uap)
144 {
145 char hname[MAXHOSTNAMELEN], *dptr;
146 int len;
147
148 /* Get the domain name. */
149 getcredhostname(td->td_ucred, hname, sizeof(hname));
150
151 dptr = strchr(hname, '.');
152 if ( dptr )
153 dptr++;
154 else
155 /* Make it effectively an empty string */
156 dptr = hname + strlen(hname);
157
158 len = strlen(dptr) + 1;
159 if ((u_int)uap->len > len + 1)
160 uap->len = len + 1;
161 return (copyout((caddr_t)dptr, (caddr_t)uap->ipdomainname, uap->len));
162 }
163
164 /* ARGSUSED */
165 static int
166 ibcs2_setipdomainname(struct thread *td, struct setipdomainname_args *uap)
167 {
168 char hname[MAXHOSTNAMELEN], *ptr;
169 int error, sctl[2], hlen;
170
171 /* Get the domain name */
172 getcredhostname(td->td_ucred, hname, sizeof(hname));
173
174 /* W/out a hostname a domain-name is nonsense */
175 if ( strlen(hname) == 0 )
176 return EINVAL;
177
178 /* Get the host's unqualified name (strip off the domain) */
179 ptr = strchr(hname, '.');
180 if ( ptr != NULL ) {
181 ptr++;
182 *ptr = '\0';
183 } else {
184 if (strlcat(hname, ".", sizeof(hname)) >= sizeof(hname))
185 return (EINVAL);
186 }
187
188 /* Set ptr to the end of the string so we can append to it */
189 hlen = strlen(hname);
190 ptr = hname + hlen;
191 if ((u_int)uap->len > (sizeof (hname) - hlen - 1))
192 return EINVAL;
193
194 /* Append the ipdomain to the end */
195 error = copyinstr((caddr_t)uap->ipdomainname, ptr, uap->len, NULL);
196 if (error)
197 return (error);
198
199 /* 'sethostname' with the new information */
200 sctl[0] = CTL_KERN;
201 sctl[1] = KERN_HOSTNAME;
202 hlen = strlen(hname) + 1;
203 return (kernel_sysctl(td, sctl, 2, 0, 0, hname, hlen, 0, 0));
204 }
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