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authorLennart Poettering <lennart@poettering.net>2016-02-01 21:07:09 +0100
committerLennart Poettering <lennart@poettering.net>2016-02-01 22:18:16 +0100
commitd0a7c5f69207b6719bab94893035fc8f5f6f87cb (patch)
treebd1df1397760acff93783f14982f8ce8aecf5c13 /src/core
parenta483fb59a8dd908a3e4b20d62410d022d511eaa8 (diff)
core: move parsing of rlimits into rlimit-util.[ch]
This way we can reuse it for parsing rlimit settings in "systemctl set-property" and related commands.
Diffstat (limited to 'src/core')
-rw-r--r--src/core/load-fragment-gperf.gperf.m420
-rw-r--r--src/core/load-fragment.c208
-rw-r--r--src/core/load-fragment.h3
-rw-r--r--src/core/main.c32
4 files changed, 46 insertions, 217 deletions
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index 29ab1b6b9e..7211738685 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -60,22 +60,22 @@ $1.RestrictAddressFamilies, config_parse_address_families, 0,
$1.SystemCallArchitectures, config_parse_warn_compat, DISABLED_CONFIGURATION, 0
$1.SystemCallErrorNumber, config_parse_warn_compat, DISABLED_CONFIGURATION, 0
$1.RestrictAddressFamilies, config_parse_warn_compat, DISABLED_CONFIGURATION, 0')
-$1.LimitCPU, config_parse_sec_limit, RLIMIT_CPU, offsetof($1, exec_context.rlimit)
-$1.LimitFSIZE, config_parse_bytes_limit, RLIMIT_FSIZE, offsetof($1, exec_context.rlimit)
-$1.LimitDATA, config_parse_bytes_limit, RLIMIT_DATA, offsetof($1, exec_context.rlimit)
-$1.LimitSTACK, config_parse_bytes_limit, RLIMIT_STACK, offsetof($1, exec_context.rlimit)
-$1.LimitCORE, config_parse_bytes_limit, RLIMIT_CORE, offsetof($1, exec_context.rlimit)
-$1.LimitRSS, config_parse_bytes_limit, RLIMIT_RSS, offsetof($1, exec_context.rlimit)
+$1.LimitCPU, config_parse_limit, RLIMIT_CPU, offsetof($1, exec_context.rlimit)
+$1.LimitFSIZE, config_parse_limit, RLIMIT_FSIZE, offsetof($1, exec_context.rlimit)
+$1.LimitDATA, config_parse_limit, RLIMIT_DATA, offsetof($1, exec_context.rlimit)
+$1.LimitSTACK, config_parse_limit, RLIMIT_STACK, offsetof($1, exec_context.rlimit)
+$1.LimitCORE, config_parse_limit, RLIMIT_CORE, offsetof($1, exec_context.rlimit)
+$1.LimitRSS, config_parse_limit, RLIMIT_RSS, offsetof($1, exec_context.rlimit)
$1.LimitNOFILE, config_parse_limit, RLIMIT_NOFILE, offsetof($1, exec_context.rlimit)
-$1.LimitAS, config_parse_bytes_limit, RLIMIT_AS, offsetof($1, exec_context.rlimit)
+$1.LimitAS, config_parse_limit, RLIMIT_AS, offsetof($1, exec_context.rlimit)
$1.LimitNPROC, config_parse_limit, RLIMIT_NPROC, offsetof($1, exec_context.rlimit)
-$1.LimitMEMLOCK, config_parse_bytes_limit, RLIMIT_MEMLOCK, offsetof($1, exec_context.rlimit)
+$1.LimitMEMLOCK, config_parse_limit, RLIMIT_MEMLOCK, offsetof($1, exec_context.rlimit)
$1.LimitLOCKS, config_parse_limit, RLIMIT_LOCKS, offsetof($1, exec_context.rlimit)
$1.LimitSIGPENDING, config_parse_limit, RLIMIT_SIGPENDING, offsetof($1, exec_context.rlimit)
-$1.LimitMSGQUEUE, config_parse_bytes_limit, RLIMIT_MSGQUEUE, offsetof($1, exec_context.rlimit)
+$1.LimitMSGQUEUE, config_parse_limit, RLIMIT_MSGQUEUE, offsetof($1, exec_context.rlimit)
$1.LimitNICE, config_parse_limit, RLIMIT_NICE, offsetof($1, exec_context.rlimit)
$1.LimitRTPRIO, config_parse_limit, RLIMIT_RTPRIO, offsetof($1, exec_context.rlimit)
-$1.LimitRTTIME, config_parse_usec_limit, RLIMIT_RTTIME, offsetof($1, exec_context.rlimit)
+$1.LimitRTTIME, config_parse_limit, RLIMIT_RTTIME, offsetof($1, exec_context.rlimit)
$1.ReadWriteDirectories, config_parse_namespace_path_strv, 0, offsetof($1, exec_context.read_write_dirs)
$1.ReadOnlyDirectories, config_parse_namespace_path_strv, 0, offsetof($1, exec_context.read_only_dirs)
$1.InaccessibleDirectories, config_parse_namespace_path_strv, 0, offsetof($1, exec_context.inaccessible_dirs)
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 903e6f0cf6..3b1fbd8b90 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -54,6 +54,7 @@
#include "parse-util.h"
#include "path-util.h"
#include "process-util.h"
+#include "rlimit-util.h"
#ifdef HAVE_SECCOMP
#include "seccomp-util.h"
#endif
@@ -1101,122 +1102,6 @@ int config_parse_capability_set(
return 0;
}
-static int rlim_parse_u64(const char *val, rlim_t *res) {
- int r = 0;
-
- if (streq(val, "infinity"))
- *res = RLIM_INFINITY;
- else {
- uint64_t u;
-
- /* 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 && u >= (uint64_t) RLIM_INFINITY)
- r = -ERANGE;
- if (r == 0)
- *res = (rlim_t) u;
- }
- return r;
-}
-
-static int rlim_parse_size(const char *val, rlim_t *res) {
- int r = 0;
-
- if (streq(val, "infinity"))
- *res = RLIM_INFINITY;
- else {
- uint64_t u;
-
- r = parse_size(val, 1024, &u);
- if (r >= 0 && u >= (uint64_t) RLIM_INFINITY)
- r = -ERANGE;
- if (r == 0)
- *res = (rlim_t) u;
- }
- return r;
-}
-
-static int rlim_parse_sec(const char *val, rlim_t *res) {
- int r = 0;
-
- if (streq(val, "infinity"))
- *res = RLIM_INFINITY;
- else {
- usec_t t;
-
- r = parse_sec(val, &t);
- if (r < 0)
- return r;
- if (t == USEC_INFINITY)
- *res = RLIM_INFINITY;
- else
- *res = (rlim_t) (DIV_ROUND_UP(t, USEC_PER_SEC));
-
- }
- return r;
-}
-
-static int rlim_parse_usec(const char *val, rlim_t *res) {
- int r = 0;
-
- if (streq(val, "infinity"))
- *res = RLIM_INFINITY;
- else {
- usec_t t;
-
- r = parse_time(val, &t, 1);
- if (r < 0)
- return r;
- if (t == USEC_INFINITY)
- *res = RLIM_INFINITY;
- else
- *res = (rlim_t) t;
- }
- return r;
-}
-
-static int parse_rlimit_range(
- const char *unit,
- const char *filename,
- unsigned line,
- const char *value,
- struct rlimit **rl,
- int (*rlim_parser)(const char *, rlim_t *)) {
-
- const char *whole_value = value;
- rlim_t soft, hard;
- _cleanup_free_ char *sword = NULL, *hword = NULL;
- int nwords, r;
-
- assert(value);
-
- /* <value> or <soft:hard> */
- nwords = extract_many_words(&value, ":", EXTRACT_DONT_COALESCE_SEPARATORS, &sword, &hword, NULL);
- r = nwords < 0 ? nwords : nwords == 0 ? -EINVAL : 0;
-
- if (r == 0)
- r = rlim_parser(sword, &soft);
- if (r == 0 && nwords == 2)
- r = rlim_parser(hword, &hard);
- if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse resource value, ignoring: %s", whole_value);
- return 0;
- }
- if (nwords == 2 && soft > hard)
- return log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid resource value ("RLIM_FMT" > "RLIM_FMT"), ignoring: %s", soft, hard, whole_value);
-
- if (!*rl) {
- *rl = new(struct rlimit, 1);
- if (!*rl)
- return log_oom();
- }
- (*rl)->rlim_cur = soft;
- (*rl)->rlim_max = nwords == 2 ? hard : soft;
- return 0;
-}
-
int config_parse_limit(
const char *unit,
const char *filename,
@@ -1229,88 +1114,35 @@ int config_parse_limit(
void *data,
void *userdata) {
- struct rlimit **rl = data;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- rl += ltype;
- return parse_rlimit_range(unit, filename, line, rvalue, rl, rlim_parse_u64);
-}
-
-int config_parse_bytes_limit(
- const char *unit,
- const char *filename,
- unsigned line,
- const char *section,
- unsigned section_line,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- struct rlimit **rl = data;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- rl += ltype;
- return parse_rlimit_range(unit, filename, line, rvalue, rl, rlim_parse_size);
-}
-
-int config_parse_sec_limit(
- const char *unit,
- const char *filename,
- unsigned line,
- const char *section,
- unsigned section_line,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- struct rlimit **rl = data;
+ struct rlimit **rl = data, d = {};
+ int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
- rl += ltype;
- return parse_rlimit_range(unit, filename, line, rvalue, rl, rlim_parse_sec);
-}
-
-int config_parse_usec_limit(
- const char *unit,
- const char *filename,
- unsigned line,
- const char *section,
- unsigned section_line,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- struct rlimit **rl = data;
+ r = rlimit_parse(ltype, rvalue, &d);
+ if (r == -EILSEQ) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Soft resource limit chosen higher than hard limit, ignoring: %s", rvalue);
+ return 0;
+ }
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse resource value, ignoring: %s", rvalue);
+ return 0;
+ }
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
+ if (rl[ltype])
+ *rl[ltype] = d;
+ else {
+ rl[ltype] = newdup(struct rlimit, &d, 1);
+ if (!rl[ltype])
+ return log_oom();
+ }
- rl += ltype;
- return parse_rlimit_range(unit, filename, line, rvalue, rl, rlim_parse_usec);
+ return 0;
}
-
-
#ifdef HAVE_SYSV_COMPAT
int config_parse_sysv_priority(const char *unit,
const char *filename,
diff --git a/src/core/load-fragment.h b/src/core/load-fragment.h
index f0027a6b43..20dd84ba95 100644
--- a/src/core/load-fragment.h
+++ b/src/core/load-fragment.h
@@ -58,9 +58,6 @@ int config_parse_exec_capabilities(const char *unit, const char *filename, unsig
int config_parse_exec_secure_bits(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_capability_set(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_limit(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_bytes_limit(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_sec_limit(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
-int config_parse_usec_limit(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_sysv_priority(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_kill_signal(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_exec_mount_flags(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
diff --git a/src/core/main.c b/src/core/main.c
index 27ba6af031..2e1d07811c 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -676,22 +676,22 @@ static int parse_config_file(void) {
{ "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval },
{ "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst },
{ "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment },
- { "Manager", "DefaultLimitCPU", config_parse_sec_limit, 0, &arg_default_rlimit[RLIMIT_CPU] },
- { "Manager", "DefaultLimitFSIZE", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] },
- { "Manager", "DefaultLimitDATA", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_DATA] },
- { "Manager", "DefaultLimitSTACK", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_STACK] },
- { "Manager", "DefaultLimitCORE", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_CORE] },
- { "Manager", "DefaultLimitRSS", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_RSS] },
- { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] },
- { "Manager", "DefaultLimitAS", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_AS] },
- { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] },
- { "Manager", "DefaultLimitMEMLOCK", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] },
- { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] },
- { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] },
- { "Manager", "DefaultLimitMSGQUEUE", config_parse_bytes_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] },
- { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] },
- { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] },
- { "Manager", "DefaultLimitRTTIME", config_parse_usec_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] },
+ { "Manager", "DefaultLimitCPU", config_parse_limit, RLIMIT_CPU, arg_default_rlimit },
+ { "Manager", "DefaultLimitFSIZE", config_parse_limit, RLIMIT_FSIZE, arg_default_rlimit },
+ { "Manager", "DefaultLimitDATA", config_parse_limit, RLIMIT_DATA, arg_default_rlimit },
+ { "Manager", "DefaultLimitSTACK", config_parse_limit, RLIMIT_STACK, arg_default_rlimit },
+ { "Manager", "DefaultLimitCORE", config_parse_limit, RLIMIT_CORE, arg_default_rlimit },
+ { "Manager", "DefaultLimitRSS", config_parse_limit, RLIMIT_RSS, arg_default_rlimit },
+ { "Manager", "DefaultLimitNOFILE", config_parse_limit, RLIMIT_NOFILE, arg_default_rlimit },
+ { "Manager", "DefaultLimitAS", config_parse_limit, RLIMIT_AS, arg_default_rlimit },
+ { "Manager", "DefaultLimitNPROC", config_parse_limit, RLIMIT_NPROC, arg_default_rlimit },
+ { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, RLIMIT_MEMLOCK, arg_default_rlimit },
+ { "Manager", "DefaultLimitLOCKS", config_parse_limit, RLIMIT_LOCKS, arg_default_rlimit },
+ { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, RLIMIT_SIGPENDING, arg_default_rlimit },
+ { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, RLIMIT_MSGQUEUE, arg_default_rlimit },
+ { "Manager", "DefaultLimitNICE", config_parse_limit, RLIMIT_NICE, arg_default_rlimit },
+ { "Manager", "DefaultLimitRTPRIO", config_parse_limit, RLIMIT_RTPRIO, arg_default_rlimit },
+ { "Manager", "DefaultLimitRTTIME", config_parse_limit, RLIMIT_RTTIME, arg_default_rlimit },
{ "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting },
{ "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting },
{ "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting },