diff options
Diffstat (limited to 'ANDROID_3.4.5/include/net/ip.h')
-rw-r--r-- | ANDROID_3.4.5/include/net/ip.h | 475 |
1 files changed, 0 insertions, 475 deletions
diff --git a/ANDROID_3.4.5/include/net/ip.h b/ANDROID_3.4.5/include/net/ip.h deleted file mode 100644 index b53d65f2..00000000 --- a/ANDROID_3.4.5/include/net/ip.h +++ /dev/null @@ -1,475 +0,0 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * Definitions for the IP module. - * - * Version: @(#)ip.h 1.0.2 05/07/93 - * - * Authors: Ross Biro - * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> - * Alan Cox, <gw4pts@gw4pts.ampr.org> - * - * Changes: - * Mike McLagan : Routing by source - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#ifndef _IP_H -#define _IP_H - -#include <linux/types.h> -#include <linux/ip.h> -#include <linux/in.h> -#include <linux/skbuff.h> - -#include <net/inet_sock.h> -#include <net/snmp.h> -#include <net/flow.h> - -struct sock; - -struct inet_skb_parm { - struct ip_options opt; /* Compiled IP options */ - unsigned char flags; - -#define IPSKB_FORWARDED 1 -#define IPSKB_XFRM_TUNNEL_SIZE 2 -#define IPSKB_XFRM_TRANSFORMED 4 -#define IPSKB_FRAG_COMPLETE 8 -#define IPSKB_REROUTED 16 -}; - -static inline unsigned int ip_hdrlen(const struct sk_buff *skb) -{ - return ip_hdr(skb)->ihl * 4; -} - -struct ipcm_cookie { - __be32 addr; - int oif; - struct ip_options_rcu *opt; - __u8 tx_flags; -}; - -#define IPCB(skb) ((struct inet_skb_parm*)((skb)->cb)) - -struct ip_ra_chain { - struct ip_ra_chain __rcu *next; - struct sock *sk; - union { - void (*destructor)(struct sock *); - struct sock *saved_sk; - }; - struct rcu_head rcu; -}; - -extern struct ip_ra_chain __rcu *ip_ra_chain; - -/* IP flags. */ -#define IP_CE 0x8000 /* Flag: "Congestion" */ -#define IP_DF 0x4000 /* Flag: "Don't Fragment" */ -#define IP_MF 0x2000 /* Flag: "More Fragments" */ -#define IP_OFFSET 0x1FFF /* "Fragment Offset" part */ - -#define IP_FRAG_TIME (30 * HZ) /* fragment lifetime */ - -struct msghdr; -struct net_device; -struct packet_type; -struct rtable; -struct sockaddr; - -extern int igmp_mc_proc_init(void); - -/* - * Functions provided by ip.c - */ - -extern int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk, - __be32 saddr, __be32 daddr, - struct ip_options_rcu *opt); -extern int ip_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev); -extern int ip_local_deliver(struct sk_buff *skb); -extern int ip_mr_input(struct sk_buff *skb); -extern int ip_output(struct sk_buff *skb); -extern int ip_mc_output(struct sk_buff *skb); -extern int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *)); -extern int ip_do_nat(struct sk_buff *skb); -extern void ip_send_check(struct iphdr *ip); -extern int __ip_local_out(struct sk_buff *skb); -extern int ip_local_out(struct sk_buff *skb); -extern int ip_queue_xmit(struct sk_buff *skb, struct flowi *fl); -extern void ip_init(void); -extern int ip_append_data(struct sock *sk, struct flowi4 *fl4, - int getfrag(void *from, char *to, int offset, int len, - int odd, struct sk_buff *skb), - void *from, int len, int protolen, - struct ipcm_cookie *ipc, - struct rtable **rt, - unsigned int flags); -extern int ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb); -extern ssize_t ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page, - int offset, size_t size, int flags); -extern struct sk_buff *__ip_make_skb(struct sock *sk, - struct flowi4 *fl4, - struct sk_buff_head *queue, - struct inet_cork *cork); -extern int ip_send_skb(struct sk_buff *skb); -extern int ip_push_pending_frames(struct sock *sk, struct flowi4 *fl4); -extern void ip_flush_pending_frames(struct sock *sk); -extern struct sk_buff *ip_make_skb(struct sock *sk, - struct flowi4 *fl4, - int getfrag(void *from, char *to, int offset, int len, - int odd, struct sk_buff *skb), - void *from, int length, int transhdrlen, - struct ipcm_cookie *ipc, - struct rtable **rtp, - unsigned int flags); - -static inline struct sk_buff *ip_finish_skb(struct sock *sk, struct flowi4 *fl4) -{ - return __ip_make_skb(sk, fl4, &sk->sk_write_queue, &inet_sk(sk)->cork.base); -} - -/* datagram.c */ -extern int ip4_datagram_connect(struct sock *sk, - struct sockaddr *uaddr, int addr_len); - -/* - * Map a multicast IP onto multicast MAC for type Token Ring. - * This conforms to RFC1469 Option 2 Multicasting i.e. - * using a functional address to transmit / receive - * multicast packets. - */ - -static inline void ip_tr_mc_map(__be32 addr, char *buf) -{ - buf[0]=0xC0; - buf[1]=0x00; - buf[2]=0x00; - buf[3]=0x04; - buf[4]=0x00; - buf[5]=0x00; -} - -struct ip_reply_arg { - struct kvec iov[1]; - int flags; - __wsum csum; - int csumoffset; /* u16 offset of csum in iov[0].iov_base */ - /* -1 if not needed */ - int bound_dev_if; - u8 tos; -}; - -#define IP_REPLY_ARG_NOSRCCHECK 1 - -static inline __u8 ip_reply_arg_flowi_flags(const struct ip_reply_arg *arg) -{ - return (arg->flags & IP_REPLY_ARG_NOSRCCHECK) ? FLOWI_FLAG_ANYSRC : 0; -} - -void ip_send_reply(struct sock *sk, struct sk_buff *skb, __be32 daddr, - const struct ip_reply_arg *arg, unsigned int len); - -struct ipv4_config { - int log_martians; - int no_pmtu_disc; -}; - -extern struct ipv4_config ipv4_config; -#define IP_INC_STATS(net, field) SNMP_INC_STATS64((net)->mib.ip_statistics, field) -#define IP_INC_STATS_BH(net, field) SNMP_INC_STATS64_BH((net)->mib.ip_statistics, field) -#define IP_ADD_STATS(net, field, val) SNMP_ADD_STATS64((net)->mib.ip_statistics, field, val) -#define IP_ADD_STATS_BH(net, field, val) SNMP_ADD_STATS64_BH((net)->mib.ip_statistics, field, val) -#define IP_UPD_PO_STATS(net, field, val) SNMP_UPD_PO_STATS64((net)->mib.ip_statistics, field, val) -#define IP_UPD_PO_STATS_BH(net, field, val) SNMP_UPD_PO_STATS64_BH((net)->mib.ip_statistics, field, val) -#define NET_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.net_statistics, field) -#define NET_INC_STATS_BH(net, field) SNMP_INC_STATS_BH((net)->mib.net_statistics, field) -#define NET_INC_STATS_USER(net, field) SNMP_INC_STATS_USER((net)->mib.net_statistics, field) -#define NET_ADD_STATS_BH(net, field, adnd) SNMP_ADD_STATS_BH((net)->mib.net_statistics, field, adnd) -#define NET_ADD_STATS_USER(net, field, adnd) SNMP_ADD_STATS_USER((net)->mib.net_statistics, field, adnd) - -extern unsigned long snmp_fold_field(void __percpu *mib[], int offt); -#if BITS_PER_LONG==32 -extern u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t sync_off); -#else -static inline u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t syncp_off) -{ - return snmp_fold_field(mib, offt); -} -#endif -extern int snmp_mib_init(void __percpu *ptr[2], size_t mibsize, size_t align); -extern void snmp_mib_free(void __percpu *ptr[2]); - -extern struct local_ports { - seqlock_t lock; - int range[2]; -} sysctl_local_ports; -extern void inet_get_local_port_range(int *low, int *high); - -extern unsigned long *sysctl_local_reserved_ports; -static inline int inet_is_reserved_local_port(int port) -{ - return test_bit(port, sysctl_local_reserved_ports); -} - -extern int sysctl_ip_nonlocal_bind; - -extern struct ctl_path net_core_path[]; -extern struct ctl_path net_ipv4_ctl_path[]; - -/* From inetpeer.c */ -extern int inet_peer_threshold; -extern int inet_peer_minttl; -extern int inet_peer_maxttl; - -/* From ip_output.c */ -extern int sysctl_ip_dynaddr; - -extern void ipfrag_init(void); - -extern void ip_static_sysctl_init(void); - -static inline bool ip_is_fragment(const struct iphdr *iph) -{ - return (iph->frag_off & htons(IP_MF | IP_OFFSET)) != 0; -} - -#ifdef CONFIG_INET -#include <net/dst.h> - -/* The function in 2.2 was invalid, producing wrong result for - * check=0xFEFF. It was noticed by Arthur Skawina _year_ ago. --ANK(000625) */ -static inline -int ip_decrease_ttl(struct iphdr *iph) -{ - u32 check = (__force u32)iph->check; - check += (__force u32)htons(0x0100); - iph->check = (__force __sum16)(check + (check>=0xFFFF)); - return --iph->ttl; -} - -static inline -int ip_dont_fragment(struct sock *sk, struct dst_entry *dst) -{ - return inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO || - (inet_sk(sk)->pmtudisc == IP_PMTUDISC_WANT && - !(dst_metric_locked(dst, RTAX_MTU))); -} - -extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more); - -static inline void ip_select_ident(struct iphdr *iph, struct dst_entry *dst, struct sock *sk) -{ - if (iph->frag_off & htons(IP_DF)) { - /* This is only to work around buggy Windows95/2000 - * VJ compression implementations. If the ID field - * does not change, they drop every other packet in - * a TCP stream using header compression. - */ - iph->id = (sk && inet_sk(sk)->inet_daddr) ? - htons(inet_sk(sk)->inet_id++) : 0; - } else - __ip_select_ident(iph, dst, 0); -} - -static inline void ip_select_ident_more(struct iphdr *iph, struct dst_entry *dst, struct sock *sk, int more) -{ - if (iph->frag_off & htons(IP_DF)) { - if (sk && inet_sk(sk)->inet_daddr) { - iph->id = htons(inet_sk(sk)->inet_id); - inet_sk(sk)->inet_id += 1 + more; - } else - iph->id = 0; - } else - __ip_select_ident(iph, dst, more); -} - -/* - * Map a multicast IP onto multicast MAC for type ethernet. - */ - -static inline void ip_eth_mc_map(__be32 naddr, char *buf) -{ - __u32 addr=ntohl(naddr); - buf[0]=0x01; - buf[1]=0x00; - buf[2]=0x5e; - buf[5]=addr&0xFF; - addr>>=8; - buf[4]=addr&0xFF; - addr>>=8; - buf[3]=addr&0x7F; -} - -/* - * Map a multicast IP onto multicast MAC for type IP-over-InfiniBand. - * Leave P_Key as 0 to be filled in by driver. - */ - -static inline void ip_ib_mc_map(__be32 naddr, const unsigned char *broadcast, char *buf) -{ - __u32 addr; - unsigned char scope = broadcast[5] & 0xF; - - buf[0] = 0; /* Reserved */ - buf[1] = 0xff; /* Multicast QPN */ - buf[2] = 0xff; - buf[3] = 0xff; - addr = ntohl(naddr); - buf[4] = 0xff; - buf[5] = 0x10 | scope; /* scope from broadcast address */ - buf[6] = 0x40; /* IPv4 signature */ - buf[7] = 0x1b; - buf[8] = broadcast[8]; /* P_Key */ - buf[9] = broadcast[9]; - buf[10] = 0; - buf[11] = 0; - buf[12] = 0; - buf[13] = 0; - buf[14] = 0; - buf[15] = 0; - buf[19] = addr & 0xff; - addr >>= 8; - buf[18] = addr & 0xff; - addr >>= 8; - buf[17] = addr & 0xff; - addr >>= 8; - buf[16] = addr & 0x0f; -} - -static inline void ip_ipgre_mc_map(__be32 naddr, const unsigned char *broadcast, char *buf) -{ - if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) - memcpy(buf, broadcast, 4); - else - memcpy(buf, &naddr, sizeof(naddr)); -} - -#if IS_ENABLED(CONFIG_IPV6) -#include <linux/ipv6.h> -#endif - -static __inline__ void inet_reset_saddr(struct sock *sk) -{ - inet_sk(sk)->inet_rcv_saddr = inet_sk(sk)->inet_saddr = 0; -#if IS_ENABLED(CONFIG_IPV6) - if (sk->sk_family == PF_INET6) { - struct ipv6_pinfo *np = inet6_sk(sk); - - memset(&np->saddr, 0, sizeof(np->saddr)); - memset(&np->rcv_saddr, 0, sizeof(np->rcv_saddr)); - } -#endif -} - -#endif - -static inline int sk_mc_loop(struct sock *sk) -{ - if (!sk) - return 1; - switch (sk->sk_family) { - case AF_INET: - return inet_sk(sk)->mc_loop; -#if IS_ENABLED(CONFIG_IPV6) - case AF_INET6: - return inet6_sk(sk)->mc_loop; -#endif - } - WARN_ON(1); - return 1; -} - -extern bool ip_call_ra_chain(struct sk_buff *skb); - -/* - * Functions provided by ip_fragment.c - */ - -enum ip_defrag_users { - IP_DEFRAG_LOCAL_DELIVER, - IP_DEFRAG_CALL_RA_CHAIN, - IP_DEFRAG_CONNTRACK_IN, - __IP_DEFRAG_CONNTRACK_IN_END = IP_DEFRAG_CONNTRACK_IN + USHRT_MAX, - IP_DEFRAG_CONNTRACK_OUT, - __IP_DEFRAG_CONNTRACK_OUT_END = IP_DEFRAG_CONNTRACK_OUT + USHRT_MAX, - IP_DEFRAG_CONNTRACK_BRIDGE_IN, - __IP_DEFRAG_CONNTRACK_BRIDGE_IN = IP_DEFRAG_CONNTRACK_BRIDGE_IN + USHRT_MAX, - IP_DEFRAG_VS_IN, - IP_DEFRAG_VS_OUT, - IP_DEFRAG_VS_FWD, - IP_DEFRAG_AF_PACKET, - IP_DEFRAG_MACVLAN, -}; - -int ip_defrag(struct sk_buff *skb, u32 user); -#ifdef CONFIG_INET -struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user); -#else -static inline struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user) -{ - return skb; -} -#endif -int ip_frag_mem(struct net *net); -int ip_frag_nqueues(struct net *net); - -/* - * Functions provided by ip_forward.c - */ - -extern int ip_forward(struct sk_buff *skb); - -/* - * Functions provided by ip_options.c - */ - -extern void ip_options_build(struct sk_buff *skb, struct ip_options *opt, - __be32 daddr, struct rtable *rt, int is_frag); -extern int ip_options_echo(struct ip_options *dopt, struct sk_buff *skb); -extern void ip_options_fragment(struct sk_buff *skb); -extern int ip_options_compile(struct net *net, - struct ip_options *opt, struct sk_buff *skb); -extern int ip_options_get(struct net *net, struct ip_options_rcu **optp, - unsigned char *data, int optlen); -extern int ip_options_get_from_user(struct net *net, struct ip_options_rcu **optp, - unsigned char __user *data, int optlen); -extern void ip_options_undo(struct ip_options * opt); -extern void ip_forward_options(struct sk_buff *skb); -extern int ip_options_rcv_srr(struct sk_buff *skb); - -/* - * Functions provided by ip_sockglue.c - */ - -extern void ipv4_pktinfo_prepare(struct sk_buff *skb); -extern void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb); -extern int ip_cmsg_send(struct net *net, - struct msghdr *msg, struct ipcm_cookie *ipc); -extern int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); -extern int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); -extern int compat_ip_setsockopt(struct sock *sk, int level, - int optname, char __user *optval, unsigned int optlen); -extern int compat_ip_getsockopt(struct sock *sk, int level, - int optname, char __user *optval, int __user *optlen); -extern int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *)); - -extern int ip_recv_error(struct sock *sk, struct msghdr *msg, int len); -extern void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err, - __be16 port, u32 info, u8 *payload); -extern void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport, - u32 info); - -#ifdef CONFIG_PROC_FS -extern int ip_misc_proc_init(void); -#endif - -#endif /* _IP_H */ |