| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| #pragma once |
| |
| #include <stdbool.h> |
| #include <sys/types.h> |
| |
| #include "sd-event.h" |
| |
| typedef struct Server Server; |
| |
| #include "conf-parser.h" |
| #include "hashmap.h" |
| #include "journal-file.h" |
| #include "journald-context.h" |
| #include "journald-rate-limit.h" |
| #include "journald-stream.h" |
| #include "list.h" |
| #include "prioq.h" |
| #include "time-util.h" |
| #include "varlink.h" |
| |
| typedef enum Storage { |
| STORAGE_AUTO, |
| STORAGE_VOLATILE, |
| STORAGE_PERSISTENT, |
| STORAGE_NONE, |
| _STORAGE_MAX, |
| _STORAGE_INVALID = -EINVAL, |
| } Storage; |
| |
| typedef enum SplitMode { |
| SPLIT_UID, |
| SPLIT_LOGIN, /* deprecated */ |
| SPLIT_NONE, |
| _SPLIT_MAX, |
| _SPLIT_INVALID = -EINVAL, |
| } SplitMode; |
| |
| typedef struct JournalCompressOptions { |
| bool enabled; |
| uint64_t threshold_bytes; |
| } JournalCompressOptions; |
| |
| 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; |
| char *path; |
| |
| JournalMetrics metrics; |
| JournalStorageSpace space; |
| } JournalStorage; |
| |
| struct Server { |
| char *namespace; |
| |
| 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; |
| sd_event_source *idle_event_source; |
| |
| JournalFile *runtime_journal; |
| JournalFile *system_journal; |
| OrderedHashmap *user_journals; |
| |
| uint64_t seqnum; |
| |
| char *buffer; |
| |
| JournalRateLimit *ratelimit; |
| usec_t sync_interval_usec; |
| usec_t ratelimit_interval; |
| unsigned ratelimit_burst; |
| |
| JournalStorage runtime_storage; |
| JournalStorage system_storage; |
| |
| JournalCompressOptions compress; |
| bool seal; |
| bool read_kmsg; |
| int set_audit; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| char *namespace_field; |
| char *runtime_directory; |
| |
| /* 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; |
| |
| size_t line_max; |
| |
| /* Caching of client metadata */ |
| Hashmap *client_contexts; |
| Prioq *client_contexts_lru; |
| |
| usec_t last_cache_pid_flush; |
| |
| ClientContext *my_context; /* the context of journald itself */ |
| ClientContext *pid1_context; /* the context of PID 1 */ |
| |
| VarlinkServer *varlink_server; |
| }; |
| |
| #define SERVER_MACHINE_ID(s) ((s)->machine_id_field + STRLEN("_MACHINE_ID=")) |
| |
| /* Extra fields for any log messages */ |
| #define N_IOVEC_META_FIELDS 23 |
| |
| /* Extra fields for log messages that contain OBJECT_PID= (i.e. log about another process) */ |
| #define N_IOVEC_OBJECT_FIELDS 18 |
| |
| /* Maximum number of fields we'll add in for driver (i.e. internal) messages */ |
| #define N_IOVEC_PAYLOAD_FIELDS 16 |
| |
| /* kmsg: Maximum number of extra fields we'll import from the kernel's /dev/kmsg */ |
| #define N_IOVEC_KERNEL_FIELDS 64 |
| |
| /* kmsg: Maximum number of extra fields we'll import from udev's devices */ |
| #define N_IOVEC_UDEV_FIELDS 32 |
| |
| void server_dispatch_message(Server *s, struct iovec *iovec, size_t n, size_t m, ClientContext *c, const struct timeval *tv, int priority, pid_t object_pid); |
| void server_driver_message(Server *s, pid_t object_pid, const char *message_id, const char *format, ...) _sentinel_ _printf_(4,0); |
| |
| /* gperf lookup function */ |
| const struct ConfigPerfItem* journald_gperf_lookup(const char *key, GPERF_LEN_TYPE length); |
| |
| CONFIG_PARSER_PROTOTYPE(config_parse_storage); |
| CONFIG_PARSER_PROTOTYPE(config_parse_line_max); |
| CONFIG_PARSER_PROTOTYPE(config_parse_compress); |
| |
| const char *storage_to_string(Storage s) _const_; |
| Storage storage_from_string(const char *s) _pure_; |
| |
| CONFIG_PARSER_PROTOTYPE(config_parse_split_mode); |
| |
| const char *split_mode_to_string(SplitMode s) _const_; |
| SplitMode split_mode_from_string(const char *s) _pure_; |
| |
| int server_init(Server *s, const char *namespace); |
| 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, bool require_flag_file); |
| 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); |
| |
| int server_start_or_stop_idle_timer(Server *s); |
| int server_refresh_idle_timer(Server *s); |