X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fjournal%2Fjournal-def.h;h=7e407a416cb1ca1674202c1162cddcc745d91d46;hp=5f026ee0f643037300003a63ab1b056e0fb90060;hb=244692cbfb46df5ff79d07da8fb848a1165bd2fb;hpb=bc85bfee87e11317fbcd1160c9003860dc6edde9

diff --git a/src/journal/journal-def.h b/src/journal/journal-def.h
index 5f026ee0f..7e407a416 100644
--- a/src/journal/journal-def.h
+++ b/src/journal/journal-def.h
@@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
-#ifndef foojournaldefhfoo
-#define foojournaldefhfoo
+#pragma once
 
 /***
   This file is part of systemd.
@@ -9,35 +8,49 @@
   Copyright 2011 Lennart Poettering
 
   systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
+  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
-  General Public License for more details.
+  Lesser General Public License for more details.
 
-  You should have received a copy of the GNU General Public License
+  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 <inttypes.h>
+#include "sparse-endian.h"
+
+#include <systemd/sd-id128.h>
 
 #include "macro.h"
-#include "sd-id128.h"
+
+/*
+ * If you change this file you probably should also change its documentation:
+ *
+ * http://www.freedesktop.org/wiki/Software/systemd/journal-files
+ *
+ */
 
 typedef struct Header Header;
+
 typedef struct ObjectHeader ObjectHeader;
 typedef union Object Object;
+
 typedef struct DataObject DataObject;
 typedef struct FieldObject FieldObject;
 typedef struct EntryObject EntryObject;
 typedef struct HashTableObject HashTableObject;
 typedef struct EntryArrayObject EntryArrayObject;
+typedef struct TagObject TagObject;
+
 typedef struct EntryItem EntryItem;
 typedef struct HashItem HashItem;
 
+typedef struct FSSHeader FSSHeader;
+
 /* Object types */
 enum {
         OBJECT_UNUSED,
@@ -47,66 +60,81 @@ enum {
         OBJECT_DATA_HASH_TABLE,
         OBJECT_FIELD_HASH_TABLE,
         OBJECT_ENTRY_ARRAY,
+        OBJECT_TAG,
         _OBJECT_TYPE_MAX
 };
 
-_packed_ struct ObjectHeader {
+/* Object flags */
+enum {
+        OBJECT_COMPRESSED = 1
+};
+
+struct ObjectHeader {
         uint8_t type;
-        uint8_t reserved[7];
-        uint64_t size;
+        uint8_t flags;
+        uint8_t reserved[6];
+        le64_t size;
         uint8_t payload[];
-};
+} _packed_;
 
-_packed_ struct DataObject {
+struct DataObject {
         ObjectHeader object;
-        uint64_t hash;
-        uint64_t next_hash_offset;
-        uint64_t next_field_offset;
-        uint64_t entry_offset; /* the first array entry we store inline */
-        uint64_t entry_array_offset;
-        uint64_t n_entries;
+        le64_t hash;
+        le64_t next_hash_offset;
+        le64_t next_field_offset;
+        le64_t entry_offset; /* the first array entry we store inline */
+        le64_t entry_array_offset;
+        le64_t n_entries;
         uint8_t payload[];
-};
+} _packed_;
 
-_packed_ struct FieldObject {
+struct FieldObject {
         ObjectHeader object;
-        uint64_t hash;
-        uint64_t next_hash_offset;
-        uint64_t head_data_offset;
-        uint64_t tail_data_offset;
+        le64_t hash;
+        le64_t next_hash_offset;
+        le64_t head_data_offset;
         uint8_t payload[];
-};
+} _packed_;
 
-_packed_ struct EntryItem {
-        uint64_t object_offset;
-        uint64_t hash;
-};
+struct EntryItem {
+        le64_t object_offset;
+        le64_t hash;
+} _packed_;
 
-_packed_ struct EntryObject {
+struct EntryObject {
         ObjectHeader object;
-        uint64_t seqnum;
-        uint64_t realtime;
-        uint64_t monotonic;
+        le64_t seqnum;
+        le64_t realtime;
+        le64_t monotonic;
         sd_id128_t boot_id;
-        uint64_t xor_hash;
+        le64_t xor_hash;
         EntryItem items[];
-};
+} _packed_;
 
-_packed_ struct HashItem {
-        uint64_t head_hash_offset;
-        uint64_t tail_hash_offset;
-};
+struct HashItem {
+        le64_t head_hash_offset;
+        le64_t tail_hash_offset;
+} _packed_;
 
-_packed_ struct HashTableObject {
+struct HashTableObject {
         ObjectHeader object;
         HashItem items[];
-};
+} _packed_;
 
-_packed_ struct EntryArrayObject {
+struct EntryArrayObject {
         ObjectHeader object;
-        uint64_t next_entry_array_offset;
-        uint64_t items[];
-};
+        le64_t next_entry_array_offset;
+        le64_t items[];
+} _packed_;
+
+#define TAG_LENGTH (256/8)
+
+struct TagObject {
+        ObjectHeader object;
+        le64_t seqnum;
+        le64_t epoch;
+        uint8_t tag[TAG_LENGTH]; /* SHA-256 HMAC */
+} _packed_;
 
 union Object {
         ObjectHeader object;
@@ -115,39 +143,74 @@ union Object {
         EntryObject entry;
         HashTableObject hash_table;
         EntryArrayObject entry_array;
+        TagObject tag;
+};
+
+enum {
+        STATE_OFFLINE = 0,
+        STATE_ONLINE = 1,
+        STATE_ARCHIVED = 2,
+        _STATE_MAX
 };
 
+/* Header flags */
 enum {
-        STATE_OFFLINE,
-        STATE_ONLINE,
-        STATE_ARCHIVED
+        HEADER_INCOMPATIBLE_COMPRESSED = 1
 };
 
-_packed_ struct Header {
+enum {
+        HEADER_COMPATIBLE_SEALED = 1
+};
+
+#define HEADER_SIGNATURE ((char[]) { 'L', 'P', 'K', 'S', 'H', 'H', 'R', 'H' })
+
+struct Header {
         uint8_t signature[8]; /* "LPKSHHRH" */
-        uint32_t compatible_flags;
-        uint32_t incompatible_flags;
+        le32_t compatible_flags;
+        le32_t incompatible_flags;
         uint8_t state;
         uint8_t reserved[7];
         sd_id128_t file_id;
         sd_id128_t machine_id;
-        sd_id128_t boot_id;
+        sd_id128_t boot_id;    /* last writer */
         sd_id128_t seqnum_id;
-        uint64_t arena_offset;
-        uint64_t arena_size;
-        uint64_t data_hash_table_offset;     /* for looking up data objects */
-        uint64_t data_hash_table_size;
-        uint64_t field_hash_table_offset;     /* for looking up field objects */
-        uint64_t field_hash_table_size;
-        uint64_t tail_object_offset;
-        uint64_t n_objects;
-        uint64_t n_entries;
-        uint64_t seqnum;
-        uint64_t first_seqnum;
-        uint64_t entry_array_offset;
-        uint64_t head_entry_realtime;
-        uint64_t tail_entry_realtime;
-        uint64_t tail_entry_monotonic;
-};
-
-#endif
+        le64_t header_size;
+        le64_t arena_size;
+        le64_t data_hash_table_offset;
+        le64_t data_hash_table_size;
+        le64_t field_hash_table_offset;
+        le64_t field_hash_table_size;
+        le64_t tail_object_offset;
+        le64_t n_objects;
+        le64_t n_entries;
+        le64_t tail_entry_seqnum;
+        le64_t head_entry_seqnum;
+        le64_t entry_array_offset;
+        le64_t head_entry_realtime;
+        le64_t tail_entry_realtime;
+        le64_t tail_entry_monotonic;
+        /* Added in 187 */
+        le64_t n_data;
+        le64_t n_fields;
+        /* Added in 189 */
+        le64_t n_tags;
+        le64_t n_entry_arrays;
+
+        /* Size: 224 */
+} _packed_;
+
+#define FSS_HEADER_SIGNATURE ((char[]) { 'K', 'S', 'H', 'H', 'R', 'H', 'L', 'P' })
+
+struct FSSHeader {
+        uint8_t signature[8]; /* "KSHHRHLP" */
+        le32_t compatible_flags;
+        le32_t incompatible_flags;
+        sd_id128_t machine_id;
+        sd_id128_t boot_id;    /* last writer */
+        le64_t header_size;
+        le64_t start_usec;
+        le64_t interval_usec;
+        le16_t fsprg_secpar;
+        le16_t reserved[3];
+        le64_t fsprg_state_size;
+} _packed_;