diff options
Diffstat (limited to 'src/grp-journal/libjournal-core/include/journal-core/journald-server.h')
| -rw-r--r-- | src/grp-journal/libjournal-core/include/journal-core/journald-server.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/grp-journal/libjournal-core/include/journal-core/journald-server.h b/src/grp-journal/libjournal-core/include/journal-core/journald-server.h new file mode 100644 index 0000000000..03d0fa213d --- /dev/null +++ b/src/grp-journal/libjournal-core/include/journal-core/journald-server.h @@ -0,0 +1,204 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2011 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 <stdbool.h> +#include <sys/types.h> + +#include <systemd/sd-event.h> + +#include "sd-journal/journal-file.h" +#include "systemd-basic/hashmap.h" +#include "systemd-basic/list.h" + +typedef struct Server Server; + +#include "journald-rate-limit.h" +#include "journald-stream.h" + +typedef enum Storage { + STORAGE_AUTO, + STORAGE_VOLATILE, + STORAGE_PERSISTENT, + STORAGE_NONE, + _STORAGE_MAX, + _STORAGE_INVALID = -1 +} Storage; + +typedef enum SplitMode { + SPLIT_UID, + SPLIT_LOGIN, /* deprecated */ + SPLIT_NONE, + _SPLIT_MAX, + _SPLIT_INVALID = -1 +} SplitMode; + +typedef struct JournalStorageSpace { + usec_t timestamp; + + uint64_t available; + uint64_t limit; + + uint64_t vfs_used; /* space used by journal files */ + uint64_t vfs_available; +} JournalStorageSpace; + +typedef struct JournalStorage { + const char *name; + const char *path; + + JournalMetrics metrics; + JournalStorageSpace space; +} JournalStorage; + +struct Server { + int syslog_fd; + int native_fd; + int stdout_fd; + int dev_kmsg_fd; + int audit_fd; + int hostname_fd; + int notify_fd; + + sd_event *event; + + sd_event_source *syslog_event_source; + sd_event_source *native_event_source; + sd_event_source *stdout_event_source; + sd_event_source *dev_kmsg_event_source; + sd_event_source *audit_event_source; + sd_event_source *sync_event_source; + sd_event_source *sigusr1_event_source; + sd_event_source *sigusr2_event_source; + sd_event_source *sigterm_event_source; + sd_event_source *sigint_event_source; + sd_event_source *sigrtmin1_event_source; + sd_event_source *hostname_event_source; + sd_event_source *notify_event_source; + sd_event_source *watchdog_event_source; + + JournalFile *runtime_journal; + JournalFile *system_journal; + OrderedHashmap *user_journals; + + uint64_t seqnum; + + char *buffer; + size_t buffer_size; + + JournalRateLimit *rate_limit; + usec_t sync_interval_usec; + usec_t rate_limit_interval; + unsigned rate_limit_burst; + + JournalStorage runtime_storage; + JournalStorage system_storage; + + bool compress; + bool seal; + + bool forward_to_kmsg; + bool forward_to_syslog; + bool forward_to_console; + bool forward_to_wall; + + unsigned n_forward_syslog_missed; + usec_t last_warn_forward_syslog_missed; + + uint64_t var_available_timestamp; + + usec_t max_retention_usec; + usec_t max_file_usec; + usec_t oldest_file_usec; + + LIST_HEAD(StdoutStream, stdout_streams); + LIST_HEAD(StdoutStream, stdout_streams_notify_queue); + unsigned n_stdout_streams; + + char *tty_path; + + int max_level_store; + int max_level_syslog; + int max_level_kmsg; + int max_level_console; + int max_level_wall; + + Storage storage; + SplitMode split_mode; + + MMapCache *mmap; + + Set *deferred_closes; + + struct udev *udev; + + uint64_t *kernel_seqnum; + bool dev_kmsg_readable:1; + + bool send_watchdog:1; + bool sent_notify_ready:1; + bool sync_scheduled:1; + + char machine_id_field[sizeof("_MACHINE_ID=") + 32]; + char boot_id_field[sizeof("_BOOT_ID=") + 32]; + char *hostname_field; + + /* Cached cgroup root, so that we don't have to query that all the time */ + char *cgroup_root; + + usec_t watchdog_usec; + + usec_t last_realtime_clock; +}; + +#define SERVER_MACHINE_ID(s) ((s)->machine_id_field + strlen("_MACHINE_ID=")) + +#define N_IOVEC_META_FIELDS 22 +#define N_IOVEC_KERNEL_FIELDS 64 +#define N_IOVEC_UDEV_FIELDS 32 +#define N_IOVEC_OBJECT_FIELDS 14 +#define N_IOVEC_PAYLOAD_FIELDS 15 + +void server_dispatch_message(Server *s, struct iovec *iovec, unsigned n, unsigned m, const struct ucred *ucred, const struct timeval *tv, const char *label, size_t label_len, const char *unit_id, int priority, pid_t object_pid); +void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) _printf_(3,0) _sentinel_; + +/* gperf lookup function */ +const struct ConfigPerfItem* journald_gperf_lookup(const char *key, GPERF_LEN_TYPE length); + +int config_parse_storage(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); + +const char *storage_to_string(Storage s) _const_; +Storage storage_from_string(const char *s) _pure_; + +int config_parse_split_mode(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); + +const char *split_mode_to_string(SplitMode s) _const_; +SplitMode split_mode_from_string(const char *s) _pure_; + +int server_init(Server *s); +void server_done(Server *s); +void server_sync(Server *s); +int server_vacuum(Server *s, bool verbose); +void server_rotate(Server *s); +int server_schedule_sync(Server *s, int priority); +int server_flush_to_var(Server *s); +void server_maybe_append_tags(Server *s); +int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata); +void server_space_usage_message(Server *s, JournalStorage *storage); |