/*** This file is part of systemd systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <sys/resource.h> #include "alloc-util.h" #include "capability-util.h" #include "macro.h" #include "rlimit-util.h" #include "string-util.h" #include "util.h" static void test_rlimit_parse_format(int resource, const char *string, rlim_t soft, rlim_t hard, int ret, const char *formatted) { _cleanup_free_ char *f = NULL; struct rlimit rl = { .rlim_cur = 4711, .rlim_max = 4712, }, rl2 = { .rlim_cur = 4713, .rlim_max = 4714 }; assert_se(rlimit_parse(resource, string, &rl) == ret); if (ret < 0) return; assert_se(rl.rlim_cur == soft); assert_se(rl.rlim_max == hard); assert_se(rlimit_format(&rl, &f) >= 0); assert_se(streq(formatted, f)); assert_se(rlimit_parse(resource, formatted, &rl2) >= 0); assert_se(memcmp(&rl, &rl2, sizeof(struct rlimit)) == 0); } int main(int argc, char *argv[]) { struct rlimit old, new, high; struct rlimit err = { .rlim_cur = 10, .rlim_max = 5, }; log_parse_environment(); log_open(); assert_se(drop_capability(CAP_SYS_RESOURCE) == 0); assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); new.rlim_cur = MIN(5U, old.rlim_max); new.rlim_max = old.rlim_max; assert_se(setrlimit(RLIMIT_NOFILE, &new) >= 0); assert_se(rlimit_from_string("LimitNOFILE") == RLIMIT_NOFILE); assert_se(rlimit_from_string("DefaultLimitNOFILE") == -1); assert_se(streq_ptr(rlimit_to_string(RLIMIT_NOFILE), "LimitNOFILE")); assert_se(rlimit_to_string(-1) == NULL); assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); assert_se(setrlimit_closest(RLIMIT_NOFILE, &old) == 0); assert_se(getrlimit(RLIMIT_NOFILE, &new) == 0); assert_se(old.rlim_cur == new.rlim_cur); assert_se(old.rlim_max == new.rlim_max); assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); high = RLIMIT_MAKE_CONST(old.rlim_max == RLIM_INFINITY ? old.rlim_max : old.rlim_max + 1); assert_se(setrlimit_closest(RLIMIT_NOFILE, &high) == 0); assert_se(getrlimit(RLIMIT_NOFILE, &new) == 0); assert_se(new.rlim_max == old.rlim_max); assert_se(new.rlim_cur == new.rlim_max); assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); assert_se(setrlimit_closest(RLIMIT_NOFILE, &err) == -EINVAL); assert_se(getrlimit(RLIMIT_NOFILE, &new) == 0); assert_se(old.rlim_cur == new.rlim_cur); assert_se(old.rlim_max == new.rlim_max); test_rlimit_parse_format(RLIMIT_NOFILE, "4:5", 4, 5, 0, "4:5"); test_rlimit_parse_format(RLIMIT_NOFILE, "6", 6, 6, 0, "6"); test_rlimit_parse_format(RLIMIT_NOFILE, "infinity", RLIM_INFINITY, RLIM_INFINITY, 0, "infinity"); test_rlimit_parse_format(RLIMIT_NOFILE, "infinity:infinity", RLIM_INFINITY, RLIM_INFINITY, 0, "infinity"); test_rlimit_parse_format(RLIMIT_NOFILE, "8:infinity", 8, RLIM_INFINITY, 0, "8:infinity"); test_rlimit_parse_format(RLIMIT_CPU, "25min:13h", (25*USEC_PER_MINUTE) / USEC_PER_SEC, (13*USEC_PER_HOUR) / USEC_PER_SEC, 0, "1500:46800"); test_rlimit_parse_format(RLIMIT_NOFILE, "", 0, 0, -EINVAL, NULL); test_rlimit_parse_format(RLIMIT_NOFILE, "5:4", 0, 0, -EILSEQ, NULL); test_rlimit_parse_format(RLIMIT_NOFILE, "5:4:3", 0, 0, -EINVAL, NULL); test_rlimit_parse_format(RLIMIT_NICE, "20", 20, 20, 0, "20"); test_rlimit_parse_format(RLIMIT_NICE, "40", 40, 40, 0, "40"); test_rlimit_parse_format(RLIMIT_NICE, "41", 41, 41, -ERANGE, "41"); test_rlimit_parse_format(RLIMIT_NICE, "0", 0, 0, 0, "0"); test_rlimit_parse_format(RLIMIT_NICE, "-7", 27, 27, 0, "27"); test_rlimit_parse_format(RLIMIT_NICE, "-20", 40, 40, 0, "40"); test_rlimit_parse_format(RLIMIT_NICE, "-21", 41, 41, -ERANGE, "41"); test_rlimit_parse_format(RLIMIT_NICE, "-0", 20, 20, 0, "20"); test_rlimit_parse_format(RLIMIT_NICE, "+7", 13, 13, 0, "13"); test_rlimit_parse_format(RLIMIT_NICE, "+19", 1, 1, 0, "1"); test_rlimit_parse_format(RLIMIT_NICE, "+20", 0, 0, -ERANGE, "0"); test_rlimit_parse_format(RLIMIT_NICE, "+0", 20, 20, 0, "20"); return 0; }