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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/if_packet.h | |
download | linux-stable-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz linux-stable-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 linux-stable-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/if_packet.h')
-rw-r--r-- | include/linux/if_packet.h | 102 |
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 |