add ctime and size function to IndexFile trait

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>

src/backup/dynamic_index.rs

@@ -233,6 +233,14 @@ impl IndexFile for DynamicIndexReader {
         })
     }
 
+    fn index_ctime(&self) -> i64 {
+        self.ctime
+    }
+
+    fn index_size(&self) -> usize {
+        self.size as usize
+    }
+
     fn chunk_from_offset(&self, offset: u64) -> Option<(usize, u64)> {
         let end_idx = self.index.len() - 1;
         let end = self.chunk_end(end_idx);

src/backup/fixed_index.rs

@@ -193,6 +193,14 @@ impl IndexFile for FixedIndexReader {
         })
     }
 
+    fn index_ctime(&self) -> i64 {
+        self.ctime
+    }
+
+    fn index_size(&self) -> usize {
+        self.size as usize
+    }
+
     fn compute_csum(&self) -> ([u8; 32], u64) {
         let mut csum = openssl::sha::Sha256::new();
         let mut chunk_end = 0;

src/backup/index.rs

@@ -22,6 +22,8 @@ pub trait IndexFile {
     fn index_digest(&self, pos: usize) -> Option<&[u8; 32]>;
     fn index_bytes(&self) -> u64;
     fn chunk_info(&self, pos: usize) -> Option<ChunkReadInfo>;
+    fn index_ctime(&self) -> i64;
+    fn index_size(&self) -> usize;
 
     /// Get the chunk index and the relative offset within it for a byte offset
     fn chunk_from_offset(&self, offset: u64) -> Option<(usize, u64)>;