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 $
46 * Portions of this software have been derived from software contributed
47 * to the FreeBSD Project by Mark Newton.
49 * Copyright (c) 1999 Mark Newton
50 * All rights reserved.
52 * Redistribution and use in source and binary forms, with or without
53 * modification, are permitted provided that the following conditions
55 * 1. Redistributions of source code must retain the above copyright
56 * notice, this list of conditions and the following disclaimer.
57 * 2. Redistributions in binary form must reproduce the above copyright
58 * notice, this list of conditions and the following disclaimer in the
59 * documentation and/or other materials provided with the distribution.
60 * 3. The name of the author may not be used to endorse or promote products
61 * derived from this software without specific prior written permission
63 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
64 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
65 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
66 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
67 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
68 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
69 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
70 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
71 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
72 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
75 #include <sys/param.h>
76 #include <sys/systm.h>
79 #include <sys/resource.h>
80 #include <sys/resourcevar.h>
82 #include <svr4/svr4.h>
83 #include <svr4/svr4_types.h>
84 #include <svr4/svr4_resource.h>
85 #include <svr4/svr4_signal.h>
86 #include <svr4/svr4_proto.h>
87 #include <svr4/svr4_util.h>
89 static __inline int svr4_to_native_rl __P((int));
98 case SVR4_RLIMIT_FSIZE:
100 case SVR4_RLIMIT_DATA:
102 case SVR4_RLIMIT_STACK:
104 case SVR4_RLIMIT_CORE:
106 case SVR4_RLIMIT_NOFILE:
107 return RLIMIT_NOFILE;
108 case SVR4_RLIMIT_VMEM:
116 * Check if the resource limit fits within the BSD range and it is not
117 * one of the magic SVR4 limit values
119 #define OKLIMIT(l) (((int32_t)(l)) >= 0 && ((int32_t)(l)) < 0x7fffffff && \
120 ((svr4_rlim_t)(l)) != SVR4_RLIM_INFINITY && \
121 ((svr4_rlim_t)(l)) != SVR4_RLIM_SAVED_CUR && \
122 ((svr4_rlim_t)(l)) != SVR4_RLIM_SAVED_MAX)
124 #define OKLIMIT64(l) (((rlim_t)(l)) >= 0 && ((rlim_t)(l)) < RLIM_INFINITY && \
125 ((svr4_rlim64_t)(l)) != SVR4_RLIM64_INFINITY && \
126 ((svr4_rlim64_t)(l)) != SVR4_RLIM64_SAVED_CUR && \
127 ((svr4_rlim64_t)(l)) != SVR4_RLIM64_SAVED_MAX)
130 svr4_sys_getrlimit(p, uap)
131 register struct proc *p;
132 struct svr4_sys_getrlimit_args *uap;
134 int rl = svr4_to_native_rl(SCARG(uap, which));
136 struct svr4_rlimit slim;
141 blim = p->p_rlimit[rl];
144 * Our infinity, is their maxfiles.
146 if (rl == RLIMIT_NOFILE && blim.rlim_max == RLIM_INFINITY)
147 blim.rlim_max = maxfiles;
150 * If the limit can be be represented, it is returned.
151 * Otherwise, if rlim_cur == rlim_max, return RLIM_SAVED_MAX
152 * else return RLIM_SAVED_CUR
154 if (blim.rlim_max == RLIM_INFINITY)
155 slim.rlim_max = SVR4_RLIM_INFINITY;
156 else if (OKLIMIT(blim.rlim_max))
157 slim.rlim_max = (svr4_rlim_t) blim.rlim_max;
159 slim.rlim_max = SVR4_RLIM_SAVED_MAX;
161 if (blim.rlim_cur == RLIM_INFINITY)
162 slim.rlim_cur = SVR4_RLIM_INFINITY;
163 else if (OKLIMIT(blim.rlim_cur))
164 slim.rlim_cur = (svr4_rlim_t) blim.rlim_cur;
165 else if (blim.rlim_max == blim.rlim_cur)
166 slim.rlim_cur = SVR4_RLIM_SAVED_MAX;
168 slim.rlim_cur = SVR4_RLIM_SAVED_CUR;
170 return copyout(&slim, SCARG(uap, rlp), sizeof(*SCARG(uap, rlp)));
175 svr4_sys_setrlimit(p, uap)
176 register struct proc *p;
177 struct svr4_sys_setrlimit_args *uap;
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 dosetrlimit(p, rl, &blim);
224 svr4_sys_getrlimit64(p, uap)
225 register struct proc *p;
226 struct svr4_sys_getrlimit64_args *uap;
228 int rl = svr4_to_native_rl(SCARG(uap, which));
230 struct svr4_rlimit64 slim;
235 blim = p->p_rlimit[rl];
238 * Our infinity, is their maxfiles.
240 if (rl == RLIMIT_NOFILE && blim.rlim_max == RLIM_INFINITY)
241 blim.rlim_max = maxfiles;
244 * If the limit can be be represented, it is returned.
245 * Otherwise, if rlim_cur == rlim_max, return SVR4_RLIM_SAVED_MAX
246 * else return SVR4_RLIM_SAVED_CUR
248 if (blim.rlim_max == RLIM_INFINITY)
249 slim.rlim_max = SVR4_RLIM64_INFINITY;
250 else if (OKLIMIT64(blim.rlim_max))
251 slim.rlim_max = (svr4_rlim64_t) blim.rlim_max;
253 slim.rlim_max = SVR4_RLIM64_SAVED_MAX;
255 if (blim.rlim_cur == RLIM_INFINITY)
256 slim.rlim_cur = SVR4_RLIM64_INFINITY;
257 else if (OKLIMIT64(blim.rlim_cur))
258 slim.rlim_cur = (svr4_rlim64_t) blim.rlim_cur;
259 else if (blim.rlim_max == blim.rlim_cur)
260 slim.rlim_cur = SVR4_RLIM64_SAVED_MAX;
262 slim.rlim_cur = SVR4_RLIM64_SAVED_CUR;
264 return copyout(&slim, SCARG(uap, rlp), sizeof(*SCARG(uap, rlp)));
269 svr4_sys_setrlimit64(p, uap)
270 register struct proc *p;
271 struct svr4_sys_setrlimit64_args *uap;
273 int rl = svr4_to_native_rl(SCARG(uap, which));
274 struct rlimit blim, *limp;
275 struct svr4_rlimit64 slim;
281 limp = &p->p_rlimit[rl];
283 if ((error = copyin(SCARG(uap, rlp), &slim, sizeof(slim))) != 0)
287 * if the limit is SVR4_RLIM64_INFINITY, then we set it to our
289 * We should also: If it is SVR4_RLIM64_SAVED_MAX, we should set the
290 * new limit to the corresponding saved hard limit, and if
291 * it is equal to SVR4_RLIM64_SAVED_CUR, we should set it to the
292 * corresponding saved soft limit.
295 if (slim.rlim_max == SVR4_RLIM64_INFINITY)
296 blim.rlim_max = RLIM_INFINITY;
297 else if (OKLIMIT64(slim.rlim_max))
298 blim.rlim_max = (rlim_t) slim.rlim_max;
299 else if (slim.rlim_max == SVR4_RLIM64_SAVED_MAX)
300 blim.rlim_max = limp->rlim_max;
301 else if (slim.rlim_max == SVR4_RLIM64_SAVED_CUR)
302 blim.rlim_max = limp->rlim_cur;
304 if (slim.rlim_cur == SVR4_RLIM64_INFINITY)
305 blim.rlim_cur = RLIM_INFINITY;
306 else if (OKLIMIT64(slim.rlim_cur))
307 blim.rlim_cur = (rlim_t) slim.rlim_cur;
308 else if (slim.rlim_cur == SVR4_RLIM64_SAVED_MAX)
309 blim.rlim_cur = limp->rlim_max;
310 else if (slim.rlim_cur == SVR4_RLIM64_SAVED_CUR)
311 blim.rlim_cur = limp->rlim_cur;
313 return dosetrlimit(p, rl, &blim);