2 * $NetBSD: svr4_resource.c,v 1.3 1998/12/13 18:00:52 christos Exp $
8 * Copyright (c) 1998 The NetBSD Foundation, Inc.
11 * This code is derived from software contributed to The NetBSD Foundation
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 * must display the following acknowledgement:
24 * This product includes software developed by the NetBSD
25 * Foundation, Inc. and its contributors.
26 * 4. Neither the name of The NetBSD Foundation nor the names of its
27 * contributors may be used to endorse or promote products derived
28 * from this software without specific prior written permission.
30 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
32 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
33 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
34 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
38 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40 * POSSIBILITY OF SUCH DAMAGE.
42 * $FreeBSD: src/sys/svr4/svr4_resource.c,v 1.4.2.1 2002/09/02 21:22:54 dillon Exp $
43 * $DragonFly: src/sys/emulation/svr4/Attic/svr4_resource.c,v 1.6 2003/11/04 05:01:10 daver Exp $
47 * Portions of this software have been derived from software contributed
48 * to the FreeBSD Project by Mark Newton.
50 * Copyright (c) 1999 Mark Newton
51 * All rights reserved.
53 * Redistribution and use in source and binary forms, with or without
54 * modification, are permitted provided that the following conditions
56 * 1. Redistributions of source code must retain the above copyright
57 * notice, this list of conditions and the following disclaimer.
58 * 2. Redistributions in binary form must reproduce the above copyright
59 * notice, this list of conditions and the following disclaimer in the
60 * documentation and/or other materials provided with the distribution.
61 * 3. The name of the author may not be used to endorse or promote products
62 * derived from this software without specific prior written permission
64 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
65 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
66 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
67 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
68 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
69 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
70 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
71 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
72 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
73 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
76 #include <sys/param.h>
77 #include <sys/systm.h>
80 #include <sys/kern_syscall.h>
81 #include <sys/resource.h>
82 #include <sys/resourcevar.h>
85 #include "svr4_types.h"
86 #include "svr4_resource.h"
87 #include "svr4_signal.h"
88 #include "svr4_proto.h"
89 #include "svr4_util.h"
91 static __inline int svr4_to_native_rl (int);
100 case SVR4_RLIMIT_FSIZE:
102 case SVR4_RLIMIT_DATA:
104 case SVR4_RLIMIT_STACK:
106 case SVR4_RLIMIT_CORE:
108 case SVR4_RLIMIT_NOFILE:
109 return RLIMIT_NOFILE;
110 case SVR4_RLIMIT_VMEM:
118 * Check if the resource limit fits within the BSD range and it is not
119 * one of the magic SVR4 limit values
121 #define OKLIMIT(l) (((int32_t)(l)) >= 0 && ((int32_t)(l)) < 0x7fffffff && \
122 ((svr4_rlim_t)(l)) != SVR4_RLIM_INFINITY && \
123 ((svr4_rlim_t)(l)) != SVR4_RLIM_SAVED_CUR && \
124 ((svr4_rlim_t)(l)) != SVR4_RLIM_SAVED_MAX)
126 #define OKLIMIT64(l) (((rlim_t)(l)) >= 0 && ((rlim_t)(l)) < RLIM_INFINITY && \
127 ((svr4_rlim64_t)(l)) != SVR4_RLIM64_INFINITY && \
128 ((svr4_rlim64_t)(l)) != SVR4_RLIM64_SAVED_CUR && \
129 ((svr4_rlim64_t)(l)) != SVR4_RLIM64_SAVED_MAX)
132 svr4_sys_getrlimit(struct svr4_sys_getrlimit_args *uap)
134 struct proc *p = curproc;
135 int rl = svr4_to_native_rl(SCARG(uap, which));
137 struct svr4_rlimit slim;
142 blim = p->p_rlimit[rl];
145 * Our infinity, is their maxfiles.
147 if (rl == RLIMIT_NOFILE && blim.rlim_max == RLIM_INFINITY)
148 blim.rlim_max = maxfiles;
151 * If the limit can be be represented, it is returned.
152 * Otherwise, if rlim_cur == rlim_max, return RLIM_SAVED_MAX
153 * else return RLIM_SAVED_CUR
155 if (blim.rlim_max == RLIM_INFINITY)
156 slim.rlim_max = SVR4_RLIM_INFINITY;
157 else if (OKLIMIT(blim.rlim_max))
158 slim.rlim_max = (svr4_rlim_t) blim.rlim_max;
160 slim.rlim_max = SVR4_RLIM_SAVED_MAX;
162 if (blim.rlim_cur == RLIM_INFINITY)
163 slim.rlim_cur = SVR4_RLIM_INFINITY;
164 else if (OKLIMIT(blim.rlim_cur))
165 slim.rlim_cur = (svr4_rlim_t) blim.rlim_cur;
166 else if (blim.rlim_max == blim.rlim_cur)
167 slim.rlim_cur = SVR4_RLIM_SAVED_MAX;
169 slim.rlim_cur = SVR4_RLIM_SAVED_CUR;
171 return copyout(&slim, SCARG(uap, rlp), sizeof(*SCARG(uap, rlp)));
176 svr4_sys_setrlimit(struct svr4_sys_setrlimit_args *uap)
178 struct proc *p = curproc;
179 int rl = svr4_to_native_rl(SCARG(uap, which));
180 struct rlimit blim, *limp;
181 struct svr4_rlimit slim;
187 limp = &p->p_rlimit[rl];
189 if ((error = copyin(SCARG(uap, rlp), &slim, sizeof(slim))) != 0)
193 * if the limit is SVR4_RLIM_INFINITY, then we set it to our
195 * We should also: If it is SVR4_RLIM_SAVED_MAX, we should set the
196 * new limit to the corresponding saved hard limit, and if
197 * it is equal to SVR4_RLIM_SAVED_CUR, we should set it to the
198 * corresponding saved soft limit.
201 if (slim.rlim_max == SVR4_RLIM_INFINITY)
202 blim.rlim_max = RLIM_INFINITY;
203 else if (OKLIMIT(slim.rlim_max))
204 blim.rlim_max = (rlim_t) slim.rlim_max;
205 else if (slim.rlim_max == SVR4_RLIM_SAVED_MAX)
206 blim.rlim_max = limp->rlim_max;
207 else if (slim.rlim_max == SVR4_RLIM_SAVED_CUR)
208 blim.rlim_max = limp->rlim_cur;
210 if (slim.rlim_cur == SVR4_RLIM_INFINITY)
211 blim.rlim_cur = RLIM_INFINITY;
212 else if (OKLIMIT(slim.rlim_cur))
213 blim.rlim_cur = (rlim_t) slim.rlim_cur;
214 else if (slim.rlim_cur == SVR4_RLIM_SAVED_MAX)
215 blim.rlim_cur = limp->rlim_max;
216 else if (slim.rlim_cur == SVR4_RLIM_SAVED_CUR)
217 blim.rlim_cur = limp->rlim_cur;
219 return kern_setrlimit(rl, &blim);
224 svr4_sys_getrlimit64(struct svr4_sys_getrlimit64_args *uap)
226 struct proc *p = curproc;
227 int rl = svr4_to_native_rl(SCARG(uap, which));
229 struct svr4_rlimit64 slim;
234 blim = p->p_rlimit[rl];
237 * Our infinity, is their maxfiles.
239 if (rl == RLIMIT_NOFILE && blim.rlim_max == RLIM_INFINITY)
240 blim.rlim_max = maxfiles;
243 * If the limit can be be represented, it is returned.
244 * Otherwise, if rlim_cur == rlim_max, return SVR4_RLIM_SAVED_MAX
245 * else return SVR4_RLIM_SAVED_CUR
247 if (blim.rlim_max == RLIM_INFINITY)
248 slim.rlim_max = SVR4_RLIM64_INFINITY;
249 else if (OKLIMIT64(blim.rlim_max))
250 slim.rlim_max = (svr4_rlim64_t) blim.rlim_max;
252 slim.rlim_max = SVR4_RLIM64_SAVED_MAX;
254 if (blim.rlim_cur == RLIM_INFINITY)
255 slim.rlim_cur = SVR4_RLIM64_INFINITY;
256 else if (OKLIMIT64(blim.rlim_cur))
257 slim.rlim_cur = (svr4_rlim64_t) blim.rlim_cur;
258 else if (blim.rlim_max == blim.rlim_cur)
259 slim.rlim_cur = SVR4_RLIM64_SAVED_MAX;
261 slim.rlim_cur = SVR4_RLIM64_SAVED_CUR;
263 return copyout(&slim, SCARG(uap, rlp), sizeof(*SCARG(uap, rlp)));
268 svr4_sys_setrlimit64(struct svr4_sys_setrlimit64_args *uap)
270 struct proc *p = curproc;
271 int rl = svr4_to_native_rl(SCARG(uap, which));
272 struct rlimit blim, *limp;
273 struct svr4_rlimit64 slim;
279 limp = &p->p_rlimit[rl];
281 if ((error = copyin(SCARG(uap, rlp), &slim, sizeof(slim))) != 0)
285 * if the limit is SVR4_RLIM64_INFINITY, then we set it to our
287 * We should also: If it is SVR4_RLIM64_SAVED_MAX, we should set the
288 * new limit to the corresponding saved hard limit, and if
289 * it is equal to SVR4_RLIM64_SAVED_CUR, we should set it to the
290 * corresponding saved soft limit.
293 if (slim.rlim_max == SVR4_RLIM64_INFINITY)
294 blim.rlim_max = RLIM_INFINITY;
295 else if (OKLIMIT64(slim.rlim_max))
296 blim.rlim_max = (rlim_t) slim.rlim_max;
297 else if (slim.rlim_max == SVR4_RLIM64_SAVED_MAX)
298 blim.rlim_max = limp->rlim_max;
299 else if (slim.rlim_max == SVR4_RLIM64_SAVED_CUR)
300 blim.rlim_max = limp->rlim_cur;
302 if (slim.rlim_cur == SVR4_RLIM64_INFINITY)
303 blim.rlim_cur = RLIM_INFINITY;
304 else if (OKLIMIT64(slim.rlim_cur))
305 blim.rlim_cur = (rlim_t) slim.rlim_cur;
306 else if (slim.rlim_cur == SVR4_RLIM64_SAVED_MAX)
307 blim.rlim_cur = limp->rlim_max;
308 else if (slim.rlim_cur == SVR4_RLIM64_SAVED_CUR)
309 blim.rlim_cur = limp->rlim_cur;
311 return kern_setrlimit(rl, &blim);