153 lines
4.2 KiB
C
153 lines
4.2 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser 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 <stdbool.h>
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#include <sys/epoll.h>
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#include <sys/types.h>
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#include <sys/socket.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 "audit.h"
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#include "journald-rate-limit.h"
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#include "list.h"
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typedef enum Storage {
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STORAGE_AUTO,
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STORAGE_VOLATILE,
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STORAGE_PERSISTENT,
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STORAGE_NONE,
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_STORAGE_MAX,
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_STORAGE_INVALID = -1
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} Storage;
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typedef enum SplitMode {
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SPLIT_LOGIN,
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SPLIT_UID,
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SPLIT_NONE,
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_SPLIT_MAX,
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_SPLIT_INVALID = -1
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} SplitMode;
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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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int dev_kmsg_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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bool seal;
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bool forward_to_kmsg;
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bool forward_to_syslog;
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bool forward_to_console;
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unsigned n_forward_syslog_missed;
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usec_t last_warn_forward_syslog_missed;
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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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usec_t max_retention_usec;
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usec_t max_file_usec;
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usec_t oldest_file_usec;
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gid_t file_gid;
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bool file_gid_valid;
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LIST_HEAD(StdoutStream, stdout_streams);
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unsigned n_stdout_streams;
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char *tty_path;
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int max_level_store;
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int max_level_syslog;
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int max_level_kmsg;
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int max_level_console;
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Storage storage;
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SplitMode split_mode;
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MMapCache *mmap;
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bool dev_kmsg_readable;
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uint64_t *kernel_seqnum;
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struct udev *udev;
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} Server;
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#define N_IOVEC_META_FIELDS 17
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#define N_IOVEC_KERNEL_FIELDS 64
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#define N_IOVEC_UDEV_FIELDS 32
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void server_dispatch_message(Server *s, struct iovec *iovec, unsigned n, unsigned m, struct ucred *ucred, struct timeval *tv, const char *label, size_t label_len, const char *unit_id, int priority);
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void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...);
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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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int config_parse_storage(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
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const char *storage_to_string(Storage s);
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Storage storage_from_string(const char *s);
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int config_parse_split_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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const char *split_mode_to_string(SplitMode s);
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SplitMode split_mode_from_string(const char *s);
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void server_fix_perms(Server *s, JournalFile *f, uid_t uid);
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bool shall_try_append_again(JournalFile *f, int r);
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int server_init(Server *s);
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void server_done(Server *s);
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void server_vacuum(Server *s);
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void server_rotate(Server *s);
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int server_flush_to_var(Server *s);
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int process_event(Server *s, struct epoll_event *ev);
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void server_maybe_append_tags(Server *s);
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