1 files changed, 102 insertions, 0 deletions

diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h
new file mode 100644
index 000000000000..b92558549d27
--- /dev/null
+++ b/include/linux/if_packet.h
@@ -0,0 +1,102 @@
+#ifndef __LINUX_IF_PACKET_H
+#define __LINUX_IF_PACKET_H
+
+struct sockaddr_pkt
+{
+        unsigned short spkt_family;
+        unsigned char spkt_device[14];
+        unsigned short spkt_protocol;
+};
+
+struct sockaddr_ll
+{
+        unsigned short  sll_family;
+        unsigned short  sll_protocol;
+        int             sll_ifindex;
+        unsigned short  sll_hatype;
+        unsigned char   sll_pkttype;
+        unsigned char   sll_halen;
+        unsigned char   sll_addr[8];
+};
+
+/* Packet types */
+
+#define PACKET_HOST             0               /* To us                */
+#define PACKET_BROADCAST        1               /* To all               */
+#define PACKET_MULTICAST        2               /* To group             */
+#define PACKET_OTHERHOST        3               /* To someone else      */
+#define PACKET_OUTGOING         4               /* Outgoing of any type */
+/* These ones are invisible by user level */
+#define PACKET_LOOPBACK         5               /* MC/BRD frame looped back */
+#define PACKET_FASTROUTE        6               /* Fastrouted frame     */
+
+/* Packet socket options */
+
+#define PACKET_ADD_MEMBERSHIP           1
+#define PACKET_DROP_MEMBERSHIP          2
+#define PACKET_RECV_OUTPUT              3
+/* Value 4 is still used by obsolete turbo-packet. */
+#define PACKET_RX_RING                  5
+#define PACKET_STATISTICS               6
+#define PACKET_COPY_THRESH              7
+
+struct tpacket_stats
+{
+        unsigned int    tp_packets;
+        unsigned int    tp_drops;
+};
+
+struct tpacket_hdr
+{
+        unsigned long   tp_status;
+#define TP_STATUS_KERNEL        0
+#define TP_STATUS_USER          1
+#define TP_STATUS_COPY          2
+#define TP_STATUS_LOSING        4
+#define TP_STATUS_CSUMNOTREADY  8
+        unsigned int    tp_len;
+        unsigned int    tp_snaplen;
+        unsigned short  tp_mac;
+        unsigned short  tp_net;
+        unsigned int    tp_sec;
+        unsigned int    tp_usec;
+};
+
+#define TPACKET_ALIGNMENT       16
+#define TPACKET_ALIGN(x)        (((x)+TPACKET_ALIGNMENT-1)&~(TPACKET_ALIGNMENT-1))
+#define TPACKET_HDRLEN          (TPACKET_ALIGN(sizeof(struct tpacket_hdr)) + sizeof(struct sockaddr_ll))
+
+/*
+   Frame structure:
+
+   - Start. Frame must be aligned to TPACKET_ALIGNMENT=16
+   - struct tpacket_hdr
+   - pad to TPACKET_ALIGNMENT=16
+   - struct sockaddr_ll
+   - Gap, chosen so that packet data (Start+tp_net) alignes to TPACKET_ALIGNMENT=16
+   - Start+tp_mac: [ Optional MAC header ]
+   - Start+tp_net: Packet data, aligned to TPACKET_ALIGNMENT=16.
+   - Pad to align to TPACKET_ALIGNMENT=16
+ */
+
+struct tpacket_req
+{
+        unsigned int    tp_block_size;  /* Minimal size of contiguous block */
+        unsigned int    tp_block_nr;    /* Number of blocks */
+        unsigned int    tp_frame_size;  /* Size of frame */
+        unsigned int    tp_frame_nr;    /* Total number of frames */
+};
+
+struct packet_mreq
+{
+        int             mr_ifindex;
+        unsigned short  mr_type;
+        unsigned short  mr_alen;
+        unsigned char   mr_address[8];
+};
+
+#define PACKET_MR_MULTICAST     0
+#define PACKET_MR_PROMISC       1
+#define PACKET_MR_ALLMULTI      2
+
+#endif