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journald: parse configuration file
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parent
3606df64ab
commit
e6960940b6
12
Makefile.am
12
Makefile.am
@ -1171,6 +1171,9 @@ systemd_journald_SOURCES = \
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src/acl-util.c \
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src/cgroup-util.c
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nodist_systemd_journald_SOURCES = \
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src/journal/journald-gperf.c
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systemd_journald_CFLAGS = \
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$(AM_CFLAGS) \
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$(ACL_CFLAGS)
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@ -1302,6 +1305,9 @@ dist_systemunit_DATA += \
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nodist_systemunit_DATA += \
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units/systemd-journald.service
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dist_pkgsysconf_DATA += \
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src/journal/systemd-journald.conf
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pkgconfiglib_DATA += \
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src/journal/libsystemd-journal.pc
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@ -1324,7 +1330,11 @@ EXTRA_DIST += \
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src/journal/journal-rate-limit.h \
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src/journal/libsystemd-journal.pc.in \
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src/journal/libsystemd-journal.sym \
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units/systemd-journald.service.in
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units/systemd-journald.service.in \
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src/journal/journald-gperf.gperf
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CLEANFILES += \
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src/journal/journald-gperf.c
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# ------------------------------------------------------------------------------
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if ENABLE_BINFMT
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@ -752,3 +752,30 @@ int config_parse_mode(
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*m = (mode_t) l;
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return 0;
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}
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int config_parse_bytes(
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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uint64_t *bytes = data;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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assert_cc(sizeof(off_t) == sizeof(uint64_t));
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if (parse_bytes(rvalue, bytes) < 0) {
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log_error("[%s:%u] Failed to parse bytes value, ignoring: %s", filename, line, rvalue);
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return 0;
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}
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return 0;
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}
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@ -101,6 +101,7 @@ int config_parse_strv(const char *filename, unsigned line, const char *section,
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int config_parse_path_strv(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
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int config_parse_usec(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
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int config_parse_mode(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
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int config_parse_bytes(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
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#define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg) \
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int function( \
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3
src/journal/.gitignore
vendored
3
src/journal/.gitignore
vendored
@ -1 +1,2 @@
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libsystemd-journal.pc
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/journald-gperf.c
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/libsystemd-journal.pc
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27
src/journal/journald-gperf.gperf
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27
src/journal/journald-gperf.gperf
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@ -0,0 +1,27 @@
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%{
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#include <stddef.h>
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#include "conf-parser.h"
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#include "journald.h"
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%}
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struct ConfigPerfItem;
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%null_strings
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%language=ANSI-C
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%define slot-name section_and_lvalue
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%define hash-function-name journald_gperf_hash
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%define lookup-function-name journald_gperf_lookup
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%readonly-tables
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%omit-struct-type
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%struct-type
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%includes
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%%
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Journal.RateLimitInterval, config_parse_usec, 0, offsetof(Server, rate_limit_interval)
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Journal.RateLimitBurst, config_parse_unsigned, 0, offsetof(Server, rate_limit_burst)
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Journal.Compress, config_parse_bool, 0, offsetof(Server, compress)
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Journal.SystemMaxUse, config_parse_bytes, 0, offsetof(Server, system_metrics.max_use)
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Journal.SystemMaxFileSize, config_parse_bytes, 0, offsetof(Server, system_metrics.max_size)
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Journal.SystemMinFileSize, config_parse_bytes, 0, offsetof(Server, system_metrics.min_size)
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Journal.SystemKeepFree, config_parse_bytes, 0, offsetof(Server, system_metrics.keep_free)
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Journal.RuntimeMaxUse, config_parse_bytes, 0, offsetof(Server, runtime_metrics.max_use)
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Journal.RuntimeMaxFileSize, config_parse_bytes, 0, offsetof(Server, runtime_metrics.max_size)
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Journal.RuntimeMinFileSize, config_parse_bytes, 0, offsetof(Server, runtime_metrics.min_size)
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Journal.RuntimeKeepFree, config_parse_bytes, 0, offsetof(Server, runtime_metrics.keep_free)
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@ -43,6 +43,8 @@
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#include "sd-journal.h"
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#include "sd-login.h"
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#include "journal-internal.h"
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#include "conf-parser.h"
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#include "journald.h"
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#define USER_JOURNALS_MAX 1024
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#define STDOUT_STREAMS_MAX 4096
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@ -56,40 +58,6 @@
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#define SYSLOG_TIMEOUT_USEC (5*USEC_PER_SEC)
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typedef struct StdoutStream StdoutStream;
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typedef struct Server {
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int epoll_fd;
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int signal_fd;
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int syslog_fd;
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int native_fd;
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int stdout_fd;
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JournalFile *runtime_journal;
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JournalFile *system_journal;
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Hashmap *user_journals;
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uint64_t seqnum;
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char *buffer;
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size_t buffer_size;
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JournalRateLimit *rate_limit;
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JournalMetrics runtime_metrics;
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JournalMetrics system_metrics;
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bool compress;
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uint64_t cached_available_space;
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usec_t cached_available_space_timestamp;
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uint64_t var_available_timestamp;
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LIST_HEAD(StdoutStream, stdout_streams);
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unsigned n_stdout_streams;
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} Server;
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typedef enum StdoutStreamState {
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STDOUT_STREAM_TAG,
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STDOUT_STREAM_PRIORITY,
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@ -1761,6 +1729,32 @@ static int open_signalfd(Server *s) {
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return 0;
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}
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static int server_parse_config_file(Server *s) {
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FILE *f;
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const char *fn;
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int r;
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assert(s);
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fn = "/etc/systemd/systemd-journald.conf";
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f = fopen(fn, "re");
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if (!f) {
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if (errno == ENOENT)
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return 0;
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log_warning("Failed to open configuration file %s: %m", fn);
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return -errno;
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}
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r = config_parse(fn, f, "Journal\0", config_item_perf_lookup, (void*) journald_gperf_lookup, false, s);
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if (r < 0)
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log_warning("Failed to parse configuration file: %s", strerror(-r));
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fclose(f);
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return r;
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}
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static int server_init(Server *s) {
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int n, r, fd;
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@ -1770,9 +1764,14 @@ static int server_init(Server *s) {
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s->syslog_fd = s->native_fd = s->stdout_fd = s->signal_fd = s->epoll_fd = -1;
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s->compress = true;
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s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL;
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s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST;
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memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics));
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memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics));
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server_parse_config_file(s);
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s->user_journals = hashmap_new(trivial_hash_func, trivial_compare_func);
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if (!s->user_journals) {
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log_error("Out of memory.");
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@ -1846,7 +1845,7 @@ static int server_init(Server *s) {
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if (r < 0)
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return r;
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s->rate_limit = journal_rate_limit_new(DEFAULT_RATE_LIMIT_INTERVAL, DEFAULT_RATE_LIMIT_BURST);
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s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, s->rate_limit_burst);
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if (!s->rate_limit)
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return -ENOMEM;
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@ -1916,15 +1915,15 @@ int main(int argc, char *argv[]) {
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if (r < 0)
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goto finish;
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server_vacuum(&server);
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server_flush_to_var(&server);
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log_debug("systemd-journald running as pid %lu", (unsigned long) getpid());
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sd_notify(false,
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"READY=1\n"
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"STATUS=Processing requests...");
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server_vacuum(&server);
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server_flush_to_var(&server);
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for (;;) {
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struct epoll_event event;
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74
src/journal/journald.h
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74
src/journal/journald.h
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@ -0,0 +1,74 @@
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#ifndef foojournaldhfoo
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#define foojournaldhfoo
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <inttypes.h>
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#include <sys/types.h>
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#include <stdbool.h>
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#include "journal-file.h"
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#include "hashmap.h"
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#include "util.h"
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#include "journal-rate-limit.h"
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#include "list.h"
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typedef struct StdoutStream StdoutStream;
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typedef struct Server {
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int epoll_fd;
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int signal_fd;
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int syslog_fd;
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int native_fd;
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int stdout_fd;
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JournalFile *runtime_journal;
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JournalFile *system_journal;
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Hashmap *user_journals;
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uint64_t seqnum;
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char *buffer;
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size_t buffer_size;
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JournalRateLimit *rate_limit;
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usec_t rate_limit_interval;
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unsigned rate_limit_burst;
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JournalMetrics runtime_metrics;
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JournalMetrics system_metrics;
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bool compress;
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uint64_t cached_available_space;
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usec_t cached_available_space_timestamp;
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uint64_t var_available_timestamp;
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LIST_HEAD(StdoutStream, stdout_streams);
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unsigned n_stdout_streams;
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} Server;
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/* gperf lookup function */
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const struct ConfigPerfItem* journald_gperf_lookup(const char *key, unsigned length);
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#endif
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21
src/journal/systemd-journald.conf
Normal file
21
src/journal/systemd-journald.conf
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@ -0,0 +1,21 @@
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# See system-journald.conf(5) for details
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[Journal]
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#Compress=yes
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#RateLimitInterval=10s
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#RateLimitBurst=200
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#SystemMaxUse=
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#SystemKeepFree=
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#SystemMaxFileSize=
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#SystemMinFileSize=
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#RuntimeMaxUse=
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#RuntimeKeepFree=
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#RuntimeMaxFileSize=
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#RuntimeMinFileSize=
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@ -1224,9 +1224,20 @@ int main(int argc, char *argv[]) {
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goto finish;
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}
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log_debug("systemd-logind running as pid %lu", (unsigned long) getpid());
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sd_notify(false,
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"READY=1\n"
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"STATUS=Processing requests...");
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r = manager_run(m);
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log_debug("systemd-logind stopped as pid %lu", (unsigned long) getpid());
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finish:
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sd_notify(false,
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"STATUS=Shutting down...");
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if (m)
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manager_free(m);
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