X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fjournal%2Fjournal-authenticate.c;h=674f81218f4c3489fb570f8461e7e62ea58a8537;hb=a3eb665e0c12df35e807611582e7332ebed325b1;hp=593bf7eb2ac0d95fd568f7ac62bcff91357116cd;hpb=272410e1790cb407bcedee4e5dfaac3f625957af;p=elogind.git

diff --git a/src/journal/journal-authenticate.c b/src/journal/journal-authenticate.c
index 593bf7eb2..674f81218 100644
--- a/src/journal/journal-authenticate.c
+++ b/src/journal/journal-authenticate.c
@@ -66,7 +66,7 @@ int journal_file_append_tag(JournalFile *f) {
 
         /* Add the tag object itself, so that we can protect its
          * header. This will exclude the actual hash value in it */
-        r = journal_file_hmac_put_object(f, OBJECT_TAG, p);
+        r = journal_file_hmac_put_object(f, OBJECT_TAG, o, p);
         if (r < 0)
                 return r;
 
@@ -229,9 +229,8 @@ int journal_file_maybe_append_tag(JournalFile *f, uint64_t realtime) {
         return 0;
 }
 
-int journal_file_hmac_put_object(JournalFile *f, int type, uint64_t p) {
+int journal_file_hmac_put_object(JournalFile *f, int type, Object *o, uint64_t p) {
         int r;
-        Object *o;
 
         assert(f);
 
@@ -242,9 +241,14 @@ int journal_file_hmac_put_object(JournalFile *f, int type, uint64_t p) {
         if (r < 0)
                 return r;
 
-        r = journal_file_move_to_object(f, type, p, &o);
-        if (r < 0)
-                return r;
+        if (!o) {
+                r = journal_file_move_to_object(f, type, p, &o);
+                if (r < 0)
+                        return r;
+        } else {
+                if (type >= 0 && o->object.type != type)
+                        return -EBADMSG;
+        }
 
         gcry_md_write(f->hmac, o, offsetof(ObjectHeader, payload));
 
@@ -460,7 +464,7 @@ int journal_file_append_first_tag(JournalFile *f) {
                 return -EINVAL;
         p -= offsetof(Object, hash_table.items);
 
-        r = journal_file_hmac_put_object(f, OBJECT_FIELD_HASH_TABLE, p);
+        r = journal_file_hmac_put_object(f, OBJECT_FIELD_HASH_TABLE, NULL, p);
         if (r < 0)
                 return r;
 
@@ -469,7 +473,7 @@ int journal_file_append_first_tag(JournalFile *f) {
                 return -EINVAL;
         p -= offsetof(Object, hash_table.items);
 
-        r = journal_file_hmac_put_object(f, OBJECT_DATA_HASH_TABLE, p);
+        r = journal_file_hmac_put_object(f, OBJECT_DATA_HASH_TABLE, NULL, p);
         if (r < 0)
                 return r;