16ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh/**************************************************************************** 26ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh **************************************************************************** 36ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *** 46ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *** This header was automatically generated from a Linux kernel header 56ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *** of the same name, to make information necessary for userspace to 66ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *** call into the kernel available to libc. It contains only constants, 76ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *** structures, and macros generated from the original header, and thus, 86ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *** contains no copyrightable information. 96ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *** 106ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh **************************************************************************** 116ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh ****************************************************************************/ 126ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#ifndef _LINUX_SKBUFF_H 136ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define _LINUX_SKBUFF_H 146ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 156ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/kernel.h> 166ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/compiler.h> 176ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/time.h> 186ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/cache.h> 196ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 206ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <asm/atomic.h> 216ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <asm/types.h> 226ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/spinlock.h> 236ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/mm.h> 246ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/highmem.h> 256ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/poll.h> 266ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/net.h> 276ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/textsearch.h> 286ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <net/checksum.h> 296ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#include <linux/dmaengine.h> 306ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 316ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define HAVE_ALLOC_SKB 326ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define HAVE_ALIGNABLE_SKB 336ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 346ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define CHECKSUM_NONE 0 356ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define CHECKSUM_HW 1 366ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define CHECKSUM_UNNECESSARY 2 376ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 386ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define SKB_DATA_ALIGN(X) (((X) + (SMP_CACHE_BYTES - 1)) & ~(SMP_CACHE_BYTES - 1)) 396ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define SKB_MAX_ORDER(X, ORDER) (((PAGE_SIZE << (ORDER)) - (X) - sizeof(struct skb_shared_info)) & ~(SMP_CACHE_BYTES - 1)) 406ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define SKB_MAX_HEAD(X) (SKB_MAX_ORDER((X), 0)) 416ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define SKB_MAX_ALLOC (SKB_MAX_ORDER(0, 2)) 426ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 436ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehstruct net_device; 446ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 456ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehstruct sk_buff_head { 466ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 476ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct sk_buff *next; 486ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct sk_buff *prev; 496ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 506ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh __u32 qlen; 516ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh spinlock_t lock; 526ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh}; 536ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 546ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehstruct sk_buff; 556ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 566ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define MAX_SKB_FRAGS (65536/PAGE_SIZE + 2) 576ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 586ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehtypedef struct skb_frag_struct skb_frag_t; 596ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 606ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehstruct skb_frag_struct { 616ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct page *page; 626ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh __u16 page_offset; 636ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh __u16 size; 646ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh}; 656ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 666ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehstruct skb_shared_info { 676ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh atomic_t dataref; 686ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned short nr_frags; 696ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned short gso_size; 706ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 716ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned short gso_segs; 726ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned short gso_type; 736ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned int ip6_frag_id; 746ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct sk_buff *frag_list; 756ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh skb_frag_t frags[MAX_SKB_FRAGS]; 766ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh}; 776ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 786ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define SKB_DATAREF_SHIFT 16 796ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#define SKB_DATAREF_MASK ((1 << SKB_DATAREF_SHIFT) - 1) 806ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 816ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehstruct skb_timeval { 826ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh u32 off_sec; 836ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh u32 off_usec; 846ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh}; 856ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 866ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehenum { 876ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_FCLONE_UNAVAILABLE, 886ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_FCLONE_ORIG, 896ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_FCLONE_CLONE, 906ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh}; 916ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 926ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehenum { 936ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_GSO_TCPV4 = 1 << 0, 946ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_GSO_UDP = 1 << 1, 956ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 966ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_GSO_DODGY = 1 << 2, 976ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 986ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_GSO_TCP_ECN = 1 << 3, 996ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1006ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh SKB_GSO_TCPV6 = 1 << 4, 1016ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh}; 1026ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1036ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsiehstruct sk_buff { 1046ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1056ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct sk_buff *next; 1066ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct sk_buff *prev; 1076ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1086ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct sock *sk; 1096ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct skb_timeval tstamp; 1106ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct net_device *dev; 1116ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct net_device *input_dev; 1126ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1136ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh union { 1146ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct tcphdr *th; 1156ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct udphdr *uh; 1166ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct icmphdr *icmph; 1176ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct igmphdr *igmph; 1186ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct iphdr *ipiph; 1196ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct ipv6hdr *ipv6h; 1206ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned char *raw; 1216ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh } h; 1226ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1236ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh union { 1246ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct iphdr *iph; 1256ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct ipv6hdr *ipv6h; 1266ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct arphdr *arph; 1276ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned char *raw; 1286ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh } nh; 1296ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1306ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh union { 1316ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned char *raw; 1326ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh } mac; 1336ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1346ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct dst_entry *dst; 1356ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh struct sec_path *sp; 1366ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1376ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh char cb[48]; 1386ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1396ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned int len, 1406ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh data_len, 1416ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh mac_len, 1426ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh csum; 1436ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh __u32 priority; 1446ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh __u8 local_df:1, 1456ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh cloned:1, 1466ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh ip_summed:2, 1476ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh nohdr:1, 1486ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh nfctinfo:3; 1496ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh __u8 pkt_type:3, 1506ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh fclone:2, 1516ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh ipvs_property:1; 1526ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh __be16 protocol; 1536ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1546ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh void (*destructor)(struct sk_buff *skb); 1556ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1566ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned int truesize; 1576ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh atomic_t users; 1586ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh unsigned char *head, 1596ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *data, 1606ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *tail, 1616ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh *end; 1626ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh}; 1636ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh 1646ecc1bfab1621eaf5a17f82020a26468c537cdeaAndrew Hsieh#endif 165