1 files changed, 0 insertions, 55 deletions
diff --git a/ring.h b/ring.h
deleted file mode 100644
index b9b8c11..0000000
--- a/ring.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * ring.c - packet ring buffer functions
- */
-#ifndef __RING_H__
-#define __RING_H__
-
-#include <linux/if.h>
-#include <linux/if_packet.h>
-
-#include "clatd.h"
-
-struct tun_data;
-
-// Frame size. Must be a multiple of TPACKET_ALIGNMENT (=16)
-// Why the 16? http://lxr.free-electrons.com/source/net/packet/af_packet.c?v=3.4#L1764
-#define TP_FRAME_SIZE (TPACKET_ALIGN(MAXMTU) + TPACKET_ALIGN(TPACKET2_HDRLEN) + 16)
-
-// Block size. Must be a multiple of the page size, and a power of two for efficient memory use.
-#define TP_BLOCK_SIZE 65536
-
-// In order to save memory, our frames are not an exact divider of the block size. Therefore, the
-// mmaped region will have gaps corresponding to the empty space at the end of each block.
-#define TP_FRAMES (TP_BLOCK_SIZE / TP_FRAME_SIZE)
-#define TP_FRAME_GAP (TP_BLOCK_SIZE % TP_FRAME_SIZE)
-
-// TODO: Make this configurable. This requires some refactoring because the packet socket is
-// opened before we drop privileges, but the configuration file is read after. A value of 16
-// results in 656 frames (1048576 bytes).
-#define TP_NUM_BLOCKS 16
-
-struct packet_ring {
-  uint8_t *base;
-  struct tpacket2_hdr *next;
-  int slot, numslots;
-  int block, numblocks;
-};
-
-int ring_create(struct tun_data *tunnel);
-void ring_read(struct packet_ring *ring, int write_fd, int to_ipv6);
-
-#endif