From 5280e6772732eb4841a749a3fea50c0705232177 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 5 Jun 2012 20:45:54 +0200
Subject: [PATCH] journal: add basic object definition for signatures (cherry
 picked from commit
 8144056fa63291e5b25d91a48cd77b91e845eabf)

---
 src/journal/journal-def.h  |   18 ++++++++++++++++++
 src/journal/journal-file.c |    4 ++++
 2 files changed, 22 insertions(+)

diff --git a/src/journal/journal-def.h b/src/journal/journal-def.h
index 2e13228..8d250b2 100644
--- a/src/journal/journal-def.h
+++ b/src/journal/journal-def.h
@@ -29,13 +29,17 @@
 #include "macro.h"
 
 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 SignatureObject SignatureObject;
+
 typedef struct EntryItem EntryItem;
 typedef struct HashItem HashItem;
 
@@ -48,6 +52,7 @@ enum {
         OBJECT_DATA_HASH_TABLE,
         OBJECT_FIELD_HASH_TABLE,
         OBJECT_ENTRY_ARRAY,
+        OBJECT_SIGNATURE,
         _OBJECT_TYPE_MAX
 };
 
@@ -115,6 +120,14 @@ _packed_ struct EntryArrayObject {
         le64_t items[];
 };
 
+#define SIGNATURE_LENGTH 160
+
+_packed_ struct SignatureObject {
+        ObjectHeader object;
+        le64_t from;
+        uint8_t signature[SIGNATURE_LENGTH];
+};
+
 union Object {
         ObjectHeader object;
         DataObject data;
@@ -122,6 +135,7 @@ union Object {
         EntryObject entry;
         HashTableObject hash_table;
         EntryArrayObject entry_array;
+        SignatureObject signature;
 };
 
 enum {
@@ -135,6 +149,10 @@ enum {
         HEADER_INCOMPATIBLE_COMPRESSED = 1
 };
 
+enum {
+        HEADER_COMPATIBLE_SIGNED = 1
+};
+
 _packed_ struct Header {
         uint8_t signature[8]; /* "LPKSHHRH" */
         uint32_t compatible_flags;
diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index 1f1f81f..8002480 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -1702,6 +1702,10 @@ void journal_file_dump(JournalFile *f) {
                 case OBJECT_ENTRY_ARRAY:
                         printf("Type: OBJECT_ENTRY_ARRAY\n");
                         break;
+
+                case OBJECT_SIGNATURE:
+                        printf("Type: OBJECT_SIGNATURE\n");
+                        break;
                 }
 
                 if (o->object.flags & OBJECT_COMPRESSED)