ndk/platforms/android-16/arch-arm/usr/include/linux/skbuff.h

   1 /****************************************************************************
   2  ****************************************************************************
   3  ***
   4  ***   This header was automatically generated from a Linux kernel header
   5  ***   of the same name, to make information necessary for userspace to
   6  ***   call into the kernel available to libc.  It contains only constants,
   7  ***   structures, and macros generated from the original header, and thus,
   8  ***   contains no copyrightable information.
   9  ***
  10  ****************************************************************************
  11  ****************************************************************************/
  12 #ifndef _LINUX_SKBUFF_H
  13 #define _LINUX_SKBUFF_H
  14
  15 #include <linux/kernel.h>
  16 #include <linux/compiler.h>
  17 #include <linux/time.h>
  18 #include <linux/cache.h>
  19
  20 #include <asm/atomic.h>
  21 #include <asm/types.h>
  22 #include <linux/spinlock.h>
  23 #include <linux/mm.h>
  24 #include <linux/highmem.h>
  25 #include <linux/poll.h>
  26 #include <linux/net.h>
  27 #include <linux/textsearch.h>
  28 #include <net/checksum.h>
  29 #include <linux/dmaengine.h>
  30
  31 #define HAVE_ALLOC_SKB
  32 #define HAVE_ALIGNABLE_SKB
  33
  34 #define CHECKSUM_NONE 0
  35 #define CHECKSUM_HW 1
  36 #define CHECKSUM_UNNECESSARY 2
  37
  38 #define SKB_DATA_ALIGN(X) (((X) + (SMP_CACHE_BYTES - 1)) &   ~(SMP_CACHE_BYTES - 1))
  39 #define SKB_MAX_ORDER(X, ORDER) (((PAGE_SIZE << (ORDER)) - (X) -   sizeof(struct skb_shared_info)) &   ~(SMP_CACHE_BYTES - 1))
  40 #define SKB_MAX_HEAD(X) (SKB_MAX_ORDER((X), 0))
  41 #define SKB_MAX_ALLOC (SKB_MAX_ORDER(0, 2))
  42
  43 struct net_device;
  44
  45 struct sk_buff_head {
  46
  47  struct sk_buff *next;
  48  struct sk_buff *prev;
  49
  50  __u32 qlen;
  51  spinlock_t lock;
  52 };
  53
  54 struct sk_buff;
  55
  56 #define MAX_SKB_FRAGS (65536/PAGE_SIZE + 2)
  57
  58 typedef struct skb_frag_struct skb_frag_t;
  59
  60 struct skb_frag_struct {
  61  struct page *page;
  62  __u16 page_offset;
  63  __u16 size;
  64 };
  65
  66 struct skb_shared_info {
  67  atomic_t dataref;
  68  unsigned short nr_frags;
  69  unsigned short gso_size;
  70
  71  unsigned short gso_segs;
  72  unsigned short gso_type;
  73  unsigned int ip6_frag_id;
  74  struct sk_buff *frag_list;
  75  skb_frag_t frags[MAX_SKB_FRAGS];
  76 };
  77
  78 #define SKB_DATAREF_SHIFT 16
  79 #define SKB_DATAREF_MASK ((1 << SKB_DATAREF_SHIFT) - 1)
  80
  81 struct skb_timeval {
  82  u32 off_sec;
  83  u32 off_usec;
  84 };
  85
  86 enum {
  87  SKB_FCLONE_UNAVAILABLE,
  88  SKB_FCLONE_ORIG,
  89  SKB_FCLONE_CLONE,
  90 };
  91
  92 enum {
  93  SKB_GSO_TCPV4 = 1 << 0,
  94  SKB_GSO_UDP = 1 << 1,
  95
  96  SKB_GSO_DODGY = 1 << 2,
  97
  98  SKB_GSO_TCP_ECN = 1 << 3,
  99
 100  SKB_GSO_TCPV6 = 1 << 4,
 101 };
 102
 103 struct sk_buff {
 104
 105  struct sk_buff *next;
 106  struct sk_buff *prev;
 107
 108  struct sock *sk;
 109  struct skb_timeval tstamp;
 110  struct net_device *dev;
 111  struct net_device *input_dev;
 112
 113  union {
 114  struct tcphdr *th;
 115  struct udphdr *uh;
 116  struct icmphdr *icmph;
 117  struct igmphdr *igmph;
 118  struct iphdr *ipiph;
 119  struct ipv6hdr *ipv6h;
 120  unsigned char *raw;
 121  } h;
 122
 123  union {
 124  struct iphdr *iph;
 125  struct ipv6hdr *ipv6h;
 126  struct arphdr *arph;
 127  unsigned char *raw;
 128  } nh;
 129
 130  union {
 131  unsigned char *raw;
 132  } mac;
 133
 134  struct dst_entry *dst;
 135  struct sec_path *sp;
 136
 137  char cb[48];
 138
 139  unsigned int len,
 140  data_len,
 141  mac_len,
 142  csum;
 143  __u32 priority;
 144  __u8 local_df:1,
 145  cloned:1,
 146  ip_summed:2,
 147  nohdr:1,
 148  nfctinfo:3;
 149  __u8 pkt_type:3,
 150  fclone:2,
 151  ipvs_property:1;
 152  __be16 protocol;
 153
 154  void (*destructor)(struct sk_buff *skb);
 155
 156  unsigned int truesize;
 157  atomic_t users;
 158  unsigned char *head,
 159  *data,
 160  *tail,
 161  *end;
 162 };
 163
 164 #endif