2 * Copyright (c) 2008 Todd C. Miller <Todd.Miller@courtesan.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 #include <sys/types.h>
20 #include <sys/resource.h>
30 #endif /* STDC_HEADERS */
35 #ifdef HAVE_GETUSERATTR
37 #ifndef HAVE_SETRLIMIT64
38 # define setrlimit64(a, b) setrlimit(a, b)
39 # define rlimit64 rlimit
40 # define rlim64_t rlim_t
41 # define RLIM64_INFINITY RLIM_INFINITY
42 #endif /* HAVE_SETRLIMIT64 */
44 #ifndef RLIM_SAVED_MAX
45 # define RLIM_SAVED_MAX RLIM64_INFINITY
55 static struct aix_limit aix_limits[] = {
56 { RLIMIT_FSIZE, S_UFSIZE, S_UFSIZE_HARD, 512 },
57 { RLIMIT_CPU, S_UCPU, S_UCPU_HARD, 1 },
58 { RLIMIT_DATA, S_UDATA, S_UDATA_HARD, 512 },
59 { RLIMIT_STACK, S_USTACK, S_USTACK_HARD, 512 },
60 { RLIMIT_RSS, S_URSS, S_URSS_HARD, 512 },
61 { RLIMIT_CORE, S_UCORE, S_UCORE_HARD, 512 },
62 { RLIMIT_NOFILE, S_UNOFILE, S_UNOFILE_HARD, 1 }
66 aix_getlimit(user, lim, valp)
73 if (getuserattr(user, lim, &val, SEC_INT) != 0 &&
74 getuserattr("default", lim, &val, SEC_INT) != 0) {
90 * For each resource limit, get the soft/hard values for the user
91 * and set those values via setrlimit64(). Must be run as euid 0.
93 for (n = 0; n < sizeof(aix_limits) / sizeof(aix_limits[0]); n++) {
95 * We have two strategies, depending on whether or not the
96 * hard limit has been defined.
98 if (aix_getlimit(user, aix_limits[n].hard, &val) == 0) {
99 rlim.rlim_max = val == -1 ? RLIM64_INFINITY : val * aix_limits[n].factor;
100 if (aix_getlimit(user, aix_limits[n].soft, &val) == 0)
101 rlim.rlim_cur = val == -1 ? RLIM64_INFINITY : val * aix_limits[n].factor;
103 rlim.rlim_cur = rlim.rlim_max; /* soft not specd, use hard */
105 /* No hard limit set, try soft limit. */
106 if (aix_getlimit(user, aix_limits[n].soft, &val) == 0)
107 rlim.rlim_cur = val == -1 ? RLIM64_INFINITY : val * aix_limits[n].factor;
109 /* Set hard limit per AIX /etc/security/limits documentation. */
110 switch (aix_limits[n].resource) {
113 rlim.rlim_max = rlim.rlim_cur;
116 rlim.rlim_max = RLIM_SAVED_MAX;
119 rlim.rlim_max = RLIM64_INFINITY;
123 (void)setrlimit64(aix_limits[n].resource, &rlim);
127 #endif /* HAVE_GETUSERATTR */