#include <linux/config.h>#include <asm/uaccess.h>#include <asm/system.h>#include <asm/bitops.h>#include <linux/types.h>#include <linux/kernel.h>#include <linux/sched.h>#include <linux/mm.h>#include <linux/string.h>#include <linux/socket.h>#include <linux/sockios.h>#include <linux/errno.h>#include <linux/in.h>#include <linux/inet.h>#include <linux/netdevice.h>#include <linux/proc_fs.h>#include <linux/init.h>#include <linux/skbuff.h>#include <linux/rtnetlink.h>#include <linux/inetdevice.h>#include <linux/igmp.h>#include <linux/pkt_sched.h>#include <linux/mroute.h>#include <linux/random.h>#include <linux/jhash.h>#include <net/protocol.h>#include <net/ip.h>#include <net/route.h>#include <net/sock.h>#include <net/ip_fib.h>#include <net/arp.h>#include <net/tcp.h>#include <net/icmp.h>Include dependency graph for ipv4/route.c:
Go to the source code of this file.
Defines | |
| #define | IP_MAX_MTU 0xFFF0 |
| #define | RT_GC_TIMEOUT (300*HZ) |
| #define | RTprint(a...) printk(KERN_DEBUG a) |
Functions | |
| static void | rt_run_flush (unsigned long dummy) |
| static struct dst_entry * | ipv4_dst_check (struct dst_entry *dst, u32) |
| static struct dst_entry * | ipv4_dst_reroute (struct dst_entry *dst, struct sk_buff *) |
| static struct dst_entry * | ipv4_negative_advice (struct dst_entry *) |
| static void | ipv4_link_failure (struct sk_buff *skb) |
| static int | rt_garbage_collect (void) |
| static int | rt_intern_hash (unsigned hash, struct rtable *rth, struct rtable **res) |
| static unsigned | rt_hash_code (u32 daddr, u32 saddr, u8 tos) |
| static __inline__ void | rt_free (struct rtable *rt) |
| static __inline__ void | rt_drop (struct rtable *rt) |
| static __inline__ int | rt_fast_clean (struct rtable *rth) |
| static __inline__ int | rt_valuable (struct rtable *rth) |
| static __inline__ int | rt_may_expire (struct rtable *rth, int tmo1, int tmo2) |
| static void | rt_check_expire (unsigned long dummy) |
| void | rt_cache_flush (int delay) |
| static void | rt_secret_rebuild (unsigned long dummy) |
| static void | rt_del (unsigned hash, struct rtable *rt) |
| void | ip_rt_redirect (u32 old_gw, u32 daddr, u32 new_gw, u32 saddr, u8 tos, struct device *dev) |
| void | ip_rt_send_redirect (struct sk_buff *skb) |
| static int | ip_error (struct sk_buff *skb) |
| static __inline__ unsigned short | guess_mtu (unsigned short old_mtu) |
| unsigned short | ip_rt_frag_needed (struct iphdr *iph, unsigned short new_mtu) |
| void | ip_rt_update_pmtu (struct dst_entry *dst, unsigned mtu) |
| static int | ip_rt_bug (struct sk_buff *skb) |
| void | ip_rt_get_source (u8 *addr, struct rtable *rt) |
| static void | rt_set_nexthop (struct rtable *rt, struct fib_result *res, u32 itag) |
| static int | ip_route_input_mc (struct sk_buff *skb, u32 daddr, u32 saddr, u8 tos, struct device *dev, int our) |
| int | ip_route_input_slow (struct sk_buff *skb, u32 daddr, u32 saddr, u8 tos, struct device *dev) |
| int | ip_route_input (struct sk_buff *skb, u32 daddr, u32 saddr, u8 tos, struct device *dev) |
| int | ip_route_output_slow (struct rtable **rp, u32 daddr, u32 saddr, u32 tos, int oif) |
| int | ip_route_output (struct rtable **rp, u32 daddr, u32 saddr, u32 tos, int oif) |
| void | ip_rt_multicast_event (struct in_device *in_dev) |
| __initfunc (void ip_rt_init(void)) | |
Variables | |
| int | ip_rt_min_delay = 2*HZ |
| int | ip_rt_max_delay = 10*HZ |
| int | ip_rt_gc_thresh = RT_HASH_DIVISOR |
| int | ip_rt_max_size = RT_HASH_DIVISOR*16 |
| int | ip_rt_gc_timeout = RT_GC_TIMEOUT |
| int | ip_rt_gc_interval = 60*HZ |
| int | ip_rt_gc_min_interval = 5*HZ |
| int | ip_rt_redirect_number = 9 |
| int | ip_rt_redirect_load = HZ/50 |
| int | ip_rt_redirect_silence = ((HZ/50) << (9+1)) |
| int | ip_rt_error_cost = HZ |
| int | ip_rt_error_burst = 5*HZ |
| int | ip_rt_gc_elasticity = 8 |
| int | ip_rt_mtu_expires = 10*60*HZ |
| int | ip_rt_secret_interval = 10*60*HZ |
| static unsigned long | rt_deadline = 0 |
| static struct timer_list | rt_flush_timer |
| static struct timer_list | rt_periodic_timer |
| static struct timer_list | rt_secret_timer |
| dst_ops | ipv4_dst_ops |
| __u8 | ip_tos2prio [16] |
| rtable * | rt_hash_table [RT_HASH_DIVISOR] |
| static unsigned int | rt_hash_rnd |
| static unsigned short | mtu_plateau [] |
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Definition at line 99 of file ipv4/route.c. Referenced by rt_set_nexthop(). |
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Definition at line 101 of file ipv4/route.c. Referenced by rt_garbage_collect(). |
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Definition at line 120 of file ipv4/route.c. |
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Definition at line 2042 of file ipv4/route.c. References add_timer(), create_proc_entry(), timer_list::expires, timer_list::function, ip_fib_init(), ip_rt_gc_interval, ip_rt_secret_interval, jiffies, net_random(), proc_net_inode_operations, proc_net_register(), PROC_NET_RTCACHE, proc_dir_entry::read_proc, rt_check_expire(), rt_secret_rebuild(), and S_IFREG. Here is the call graph for this function:  |
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Definition at line 857 of file ipv4/route.c. Referenced by ip_rt_frag_needed(). |
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Definition at line 814 of file ipv4/route.c. References code, sk_buff::dst, EACCES, EHOSTUNREACH, EINVAL, ENETUNREACH, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, ICMP_NET_UNREACH, ICMP_PKT_FILTERED, icmp_send(), ip_rt_error_burst, ip_rt_error_cost, jiffies, now, and rtable::u. Referenced by ip_route_input_slow(). Here is the call graph for this function:  |
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Definition at line 1378 of file ipv4/route.c. References atomic_inc, sk_buff::dst, rt_key::dst, EINVAL, hash, rt_key::iif, ip_route_input_mc(), ip_route_input_slow(), IPTOS_TOS_MASK, jiffies, rtable::key, rt_key::oif, rt_hash_code(), rt_key::src, rt_key::tos, and rtable::u. Referenced by arp_rcv(), ip_local_deliver(), ip_options_rcv_srr(), ip_rcv(), ipgre_err(), and ipip_err(). Here is the call graph for this function:  |
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Definition at line 1033 of file ipv4/route.c. References __constant_htons, atomic_set, sk_buff::dst, rt_key::dst, dst_alloc(), EINVAL, ENOBUFS, ETH_P_IP, fib_validate_source(), hash, rt_key::iif, inet_select_addr(), ip_local_deliver(), ip_mr_input(), ip_rt_bug(), rtable::key, loopback_dev, NULL, rt_key::oif, sk_buff::protocol, rtable::rt_dst, rtable::rt_flags, rtable::rt_gateway, rt_hash_code(), rtable::rt_iif, rt_intern_hash(), RT_SCOPE_LINK, rtable::rt_spec_dst, rtable::rt_src, rtable::rt_type, RTCF_LOCAL, RTCF_MULTICAST, RTN_MULTICAST, rt_key::src, rt_key::tos, rtable::u, and u32. Referenced by ip_route_input(). Here is the call graph for this function:  |
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Definition at line 1676 of file ipv4/route.c. References atomic_inc, rt_key::dst, end_bh_atomic(), hash, rt_key::iif, ip_route_output_slow(), IPTOS_TOS_MASK, jiffies, rtable::key, rt_key::oif, rtable::rt_flags, rt_hash_code(), RTCF_TPROXY, RTO_ONLINK, RTO_TPROXY, rt_key::src, start_bh_atomic(), rt_key::tos, and rtable::u. Referenced by arp_filter(), arp_req_delete(), arp_req_set(), icmp_reply(), icmp_send(), ip_fw_masquerade(), ip_masq_user_maddr(), ip_mc_find_dev(), ip_queue_xmit(), ip_route_connect(), ip_send_reply(), ipgre_err(), ipgre_tunnel_init(), ipgre_tunnel_xmit(), ipip6_tunnel_init(), ipip6_tunnel_xmit(), ipip_err(), ipip_tunnel_init(), ipip_tunnel_xmit(), ipmr_queue_xmit(), rarp_req_set(), raw_sendmsg(), tcp_v4_rebuild_header(), tcp_v4_send_synack(), tcp_v4_syn_recv_sock(), and udp_sendmsg(). Here is the call graph for this function:  |
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Definition at line 948 of file ipv4/route.c. References sk_buff::dev, KERN_DEBUG, sk_buff::nh, and printk. Referenced by ip_route_input_mc(), and ip_route_input_slow(). |
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Definition at line 867 of file ipv4/route.c. References rt_key::dst, guess_mtu(), hash, rt_key::iif, ip_rt_mtu_expires, IPTOS_TOS_MASK, rtable::key, mtu, ntohs(), rtable::rt_dst, rt_hash_code(), rtable::rt_src, RTAX_MTU, rt_key::src, rt_key::tos, u, rtable::u, u32, and u8. Referenced by icmp_unreach(). Here is the call graph for this function:  |
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Definition at line 965 of file ipv4/route.c. References fib_lookup(), FIB_RES_PREFSRC, rt_key::iif, inet_select_addr(), rtable::key, memcpy, rtable::rt_gateway, RT_SCOPE_UNIVERSE, rtable::rt_src, RTN_NAT, src, fib_result::type, rtable::u, and u32. Referenced by ip_forward_options(), and ip_options_build(). Here is the call graph for this function:  |
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Definition at line 1919 of file ipv4/route.c. References rt_cache_flush(). Referenced by ip_mc_dec_group(), ip_mc_inc_group(), ip_mroute_setsockopt(), and vif_delete(). Here is the call graph for this function:  |
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Definition at line 630 of file ipv4/route.c. References arp_bind_neighbour(), atomic_set, rt_key::dst, dst_alloc(), hash, rt_key::iif, inet_addr_onlink(), inet_addr_type(), ip_fib_check_default(), ip_rt_put(), IPTOS_TOS_MASK, jiffies, k, KERN_INFO, rtable::key, net_ratelimit(), ntohl(), NULL, rt_key::oif, printk, rt_del(), rt_drop(), rtable::rt_dst, rtable::rt_flags, rtable::rt_gateway, rt_hash_code(), rt_intern_hash(), rtable::rt_src, RTCF_REDIRECTED, RTN_UNICAST, rt_key::src, rt_key::tos, rtable::u, and u32. Referenced by icmp_redirect(). Here is the call graph for this function:  |
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Definition at line 776 of file ipv4/route.c. References sk_buff::dst, ICMP_REDIR_HOST, ICMP_REDIRECT, icmp_send(), ip_rt_redirect_load, ip_rt_redirect_number, ip_rt_redirect_silence, jiffies, KERN_WARNING, net_ratelimit(), printk, rtable::rt_dst, rtable::rt_gateway, rtable::rt_iif, rtable::rt_src, and rtable::u. Referenced by ip_forward(). Here is the call graph for this function:  |
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Definition at line 916 of file ipv4/route.c. References ip_rt_mtu_expires, dst_entry::mxlock, dst_entry::pmtu, and RTAX_MTU. Referenced by do_pmtu_discovery(). |
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Definition at line 925 of file ipv4/route.c. References NULL. |
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Definition at line 931 of file ipv4/route.c. References NULL. |
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Definition at line 937 of file ipv4/route.c. References sk_buff::dst, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, icmp_send(), and rtable::u. Here is the call graph for this function:  |
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Definition at line 739 of file ipv4/route.c. References rt_key::dst, hash, ip_rt_put(), KERN_DEBUG, rtable::key, NULL, dst_entry::obsolete, rt_key::oif, printk, rt_del(), rtable::rt_dst, rtable::rt_flags, rt_hash_code(), RTCF_REDIRECTED, rt_key::src, rt_key::tos, and rtable::u. Here is the call graph for this function:  |
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Definition at line 365 of file ipv4/route.c. References add_timer(), del_timer(), end_bh_atomic(), timer_list::expires, in_interrupt, ip_rt_max_delay, ip_rt_min_delay, jiffies, now, rt_deadline, rt_run_flush(), start_bh_atomic(), and user_mode. Referenced by fib_disable_ip(), fib_flush(), fib_inetaddr_event(), fib_netdev_event(), fn_hash_delete(), fn_hash_insert(), ip_rt_multicast_event(), and rt_secret_rebuild(). Here is the call graph for this function:  |
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Definition at line 297 of file ipv4/route.c. References add_timer(), timer_list::expires, ip_rt_gc_interval, ip_rt_gc_timeout, jiffies, now, NULL, rt_free(), RT_HASH_DIVISOR, rt_may_expire(), and rtable::u. Referenced by __initfunc(). Here is the call graph for this function:  |
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Definition at line 614 of file ipv4/route.c. References end_bh_atomic(), ip_rt_put(), rt_free(), start_bh_atomic(), and rtable::u. Referenced by ip_rt_redirect(), and ipv4_negative_advice(). Here is the call graph for this function:  |
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Definition at line 259 of file ipv4/route.c. References ip_rt_put(), and rtable::u. Referenced by ip_rt_redirect(), and rt_intern_hash(). Here is the call graph for this function:  |
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Definition at line 265 of file ipv4/route.c. References rt_key::iif, rtable::key, rtable::rt_flags, RTCF_BROADCAST, RTCF_MULTICAST, and rtable::u. Referenced by rt_may_expire(). |
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Definition at line 254 of file ipv4/route.c. Referenced by rt_check_expire(), rt_del(), rt_garbage_collect(), and rt_run_flush(). |
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Definition at line 427 of file ipv4/route.c. References atomic_read, end_bh_atomic(), dst_ops::entries, dst_ops::gc_thresh, in_interrupt, ip_rt_gc_elasticity, ip_rt_gc_min_interval, ip_rt_gc_timeout, ip_rt_max_size, jiffies, k, KERN_DEBUG, max, min, net_ratelimit(), now, NULL, printk, rt_free(), RT_GC_TIMEOUT, RT_HASH_DIVISOR, rt_may_expire(), start_bh_atomic(), and rtable::u. Referenced by rt_intern_hash(). Here is the call graph for this function:  |
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Definition at line 186 of file ipv4/route.c. References jhash_3words(), rt_hash_rnd, u32, and xFF. Referenced by ip_route_input(), ip_route_input_mc(), ip_route_input_slow(), ip_route_output(), ip_route_output_slow(), ip_rt_frag_needed(), ip_rt_redirect(), and ipv4_negative_advice(). Here is the call graph for this function:  |
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Definition at line 538 of file ipv4/route.c. References arp_bind_neighbour(), atomic_inc< |
