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-rw-r--r--src/basic/rlimit-util.c321
1 files changed, 0 insertions, 321 deletions
diff --git a/src/basic/rlimit-util.c b/src/basic/rlimit-util.c
deleted file mode 100644
index ee063720ed..0000000000
--- a/src/basic/rlimit-util.c
+++ /dev/null
@@ -1,321 +0,0 @@
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- 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 <errno.h>
-#include <sys/resource.h>
-
-#include "alloc-util.h"
-#include "extract-word.h"
-#include "formats-util.h"
-#include "macro.h"
-#include "missing.h"
-#include "rlimit-util.h"
-#include "string-table.h"
-#include "time-util.h"
-
-int setrlimit_closest(int resource, const struct rlimit *rlim) {
- struct rlimit highest, fixed;
-
- assert(rlim);
-
- if (setrlimit(resource, rlim) >= 0)
- return 0;
-
- if (errno != EPERM)
- return -errno;
-
- /* So we failed to set the desired setrlimit, then let's try
- * to get as close as we can */
- assert_se(getrlimit(resource, &highest) == 0);
-
- fixed.rlim_cur = MIN(rlim->rlim_cur, highest.rlim_max);
- fixed.rlim_max = MIN(rlim->rlim_max, highest.rlim_max);
-
- if (setrlimit(resource, &fixed) < 0)
- return -errno;
-
- return 0;
-}
-
-static int rlimit_parse_u64(const char *val, rlim_t *ret) {
- uint64_t u;
- int r;
-
- assert(val);
- assert(ret);
-
- if (streq(val, "infinity")) {
- *ret = RLIM_INFINITY;
- return 0;
- }
-
- /* setrlimit(2) suggests rlim_t is always 64bit on Linux. */
- assert_cc(sizeof(rlim_t) == sizeof(uint64_t));
-
- r = safe_atou64(val, &u);
- if (r < 0)
- return r;
- if (u >= (uint64_t) RLIM_INFINITY)
- return -ERANGE;
-
- *ret = (rlim_t) u;
- return 0;
-}
-
-static int rlimit_parse_size(const char *val, rlim_t *ret) {
- uint64_t u;
- int r;
-
- assert(val);
- assert(ret);
-
- if (streq(val, "infinity")) {
- *ret = RLIM_INFINITY;
- return 0;
- }
-
- r = parse_size(val, 1024, &u);
- if (r < 0)
- return r;
- if (u >= (uint64_t) RLIM_INFINITY)
- return -ERANGE;
-
- *ret = (rlim_t) u;
- return 0;
-}
-
-static int rlimit_parse_sec(const char *val, rlim_t *ret) {
- uint64_t u;
- usec_t t;
- int r;
-
- assert(val);
- assert(ret);
-
- if (streq(val, "infinity")) {
- *ret = RLIM_INFINITY;
- return 0;
- }
-
- r = parse_sec(val, &t);
- if (r < 0)
- return r;
- if (t == USEC_INFINITY) {
- *ret = RLIM_INFINITY;
- return 0;
- }
-
- u = (uint64_t) DIV_ROUND_UP(t, USEC_PER_SEC);
- if (u >= (uint64_t) RLIM_INFINITY)
- return -ERANGE;
-
- *ret = (rlim_t) u;
- return 0;
-}
-
-static int rlimit_parse_usec(const char *val, rlim_t *ret) {
- usec_t t;
- int r;
-
- assert(val);
- assert(ret);
-
- if (streq(val, "infinity")) {
- *ret = RLIM_INFINITY;
- return 0;
- }
-
- r = parse_time(val, &t, 1);
- if (r < 0)
- return r;
- if (t == USEC_INFINITY) {
- *ret = RLIM_INFINITY;
- return 0;
- }
-
- *ret = (rlim_t) t;
- return 0;
-}
-
-static int rlimit_parse_nice(const char *val, rlim_t *ret) {
- uint64_t rl;
- int r;
-
- /* So, Linux is weird. The range for RLIMIT_NICE is 40..1, mapping to the nice levels -20..19. However, the
- * RLIMIT_NICE limit defaults to 0 by the kernel, i.e. a value that maps to nice level 20, which of course is
- * bogus and does not exist. In order to permit parsing the RLIMIT_NICE of 0 here we hence implement a slight
- * asymmetry: when parsing as positive nice level we permit 0..19. When parsing as negative nice level, we
- * permit -20..0. But when parsing as raw resource limit value then we also allow the special value 0.
- *
- * Yeah, Linux is quality engineering sometimes... */
-
- if (val[0] == '+') {
-
- /* Prefixed with "+": Parse as positive user-friendly nice value */
- r = safe_atou64(val + 1, &rl);
- if (r < 0)
- return r;
-
- if (rl >= PRIO_MAX)
- return -ERANGE;
-
- rl = 20 - rl;
-
- } else if (val[0] == '-') {
-
- /* Prefixed with "-": Parse as negative user-friendly nice value */
- r = safe_atou64(val + 1, &rl);
- if (r < 0)
- return r;
-
- if (rl > (uint64_t) (-PRIO_MIN))
- return -ERANGE;
-
- rl = 20 + rl;
- } else {
-
- /* Not prefixed: parse as raw resource limit value */
- r = safe_atou64(val, &rl);
- if (r < 0)
- return r;
-
- if (rl > (uint64_t) (20 - PRIO_MIN))
- return -ERANGE;
- }
-
- *ret = (rlim_t) rl;
- return 0;
-}
-
-static int (*const rlimit_parse_table[_RLIMIT_MAX])(const char *val, rlim_t *ret) = {
- [RLIMIT_CPU] = rlimit_parse_sec,
- [RLIMIT_FSIZE] = rlimit_parse_size,
- [RLIMIT_DATA] = rlimit_parse_size,
- [RLIMIT_STACK] = rlimit_parse_size,
- [RLIMIT_CORE] = rlimit_parse_size,
- [RLIMIT_RSS] = rlimit_parse_size,
- [RLIMIT_NOFILE] = rlimit_parse_u64,
- [RLIMIT_AS] = rlimit_parse_size,
- [RLIMIT_NPROC] = rlimit_parse_u64,
- [RLIMIT_MEMLOCK] = rlimit_parse_size,
- [RLIMIT_LOCKS] = rlimit_parse_u64,
- [RLIMIT_SIGPENDING] = rlimit_parse_u64,
- [RLIMIT_MSGQUEUE] = rlimit_parse_size,
- [RLIMIT_NICE] = rlimit_parse_nice,
- [RLIMIT_RTPRIO] = rlimit_parse_u64,
- [RLIMIT_RTTIME] = rlimit_parse_usec,
-};
-
-int rlimit_parse_one(int resource, const char *val, rlim_t *ret) {
- assert(val);
- assert(ret);
-
- if (resource < 0)
- return -EINVAL;
- if (resource >= _RLIMIT_MAX)
- return -EINVAL;
-
- return rlimit_parse_table[resource](val, ret);
-}
-
-int rlimit_parse(int resource, const char *val, struct rlimit *ret) {
- _cleanup_free_ char *hard = NULL, *soft = NULL;
- rlim_t hl, sl;
- int r;
-
- assert(val);
- assert(ret);
-
- r = extract_first_word(&val, &soft, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
- if (r < 0)
- return r;
- if (r == 0)
- return -EINVAL;
-
- r = rlimit_parse_one(resource, soft, &sl);
- if (r < 0)
- return r;
-
- r = extract_first_word(&val, &hard, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
- if (r < 0)
- return r;
- if (!isempty(val))
- return -EINVAL;
- if (r == 0)
- hl = sl;
- else {
- r = rlimit_parse_one(resource, hard, &hl);
- if (r < 0)
- return r;
- if (sl > hl)
- return -EILSEQ;
- }
-
- *ret = (struct rlimit) {
- .rlim_cur = sl,
- .rlim_max = hl,
- };
-
- return 0;
-}
-
-int rlimit_format(const struct rlimit *rl, char **ret) {
- char *s = NULL;
-
- assert(rl);
- assert(ret);
-
- if (rl->rlim_cur >= RLIM_INFINITY && rl->rlim_max >= RLIM_INFINITY)
- s = strdup("infinity");
- else if (rl->rlim_cur >= RLIM_INFINITY)
- (void) asprintf(&s, "infinity:" RLIM_FMT, rl->rlim_max);
- else if (rl->rlim_max >= RLIM_INFINITY)
- (void) asprintf(&s, RLIM_FMT ":infinity", rl->rlim_cur);
- else if (rl->rlim_cur == rl->rlim_max)
- (void) asprintf(&s, RLIM_FMT, rl->rlim_cur);
- else
- (void) asprintf(&s, RLIM_FMT ":" RLIM_FMT, rl->rlim_cur, rl->rlim_max);
-
- if (!s)
- return -ENOMEM;
-
- *ret = s;
- return 0;
-}
-
-static const char* const rlimit_table[_RLIMIT_MAX] = {
- [RLIMIT_CPU] = "LimitCPU",
- [RLIMIT_FSIZE] = "LimitFSIZE",
- [RLIMIT_DATA] = "LimitDATA",
- [RLIMIT_STACK] = "LimitSTACK",
- [RLIMIT_CORE] = "LimitCORE",
- [RLIMIT_RSS] = "LimitRSS",
- [RLIMIT_NOFILE] = "LimitNOFILE",
- [RLIMIT_AS] = "LimitAS",
- [RLIMIT_NPROC] = "LimitNPROC",
- [RLIMIT_MEMLOCK] = "LimitMEMLOCK",
- [RLIMIT_LOCKS] = "LimitLOCKS",
- [RLIMIT_SIGPENDING] = "LimitSIGPENDING",
- [RLIMIT_MSGQUEUE] = "LimitMSGQUEUE",
- [RLIMIT_NICE] = "LimitNICE",
- [RLIMIT_RTPRIO] = "LimitRTPRIO",
- [RLIMIT_RTTIME] = "LimitRTTIME"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(rlimit, int);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-25 22:06:10 +0000