ip_fastfwd.c File Reference

#include <sys/cdefs.h>
#include "opt_ipstealth.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/sdt.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_var.h>
#include <net/if_dl.h>
#include <net/pfil.h>
#include <net/route.h>
#include <net/route/nhop.h>
#include <net/vnet.h>
#include <netinet/in.h>
#include <netinet/in_fib.h>
#include <netinet/in_kdtrace.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/ip_icmp.h>
#include <netinet/ip_options.h>
#include <machine/in_cksum.h>

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Macros
#define	V_ipsendredirects   VNET(ipsendredirects)

Functions
	__FBSDID ("$FreeBSD$")
static struct mbuf *	ip_redir_alloc (struct mbuf *m, struct nhop_object *nh, u_short ip_len, struct in_addr *osrc, struct in_addr *newgw)
static int	ip_findroute (struct nhop_object **pnh, struct in_addr dest, struct mbuf *m)
struct mbuf *	ip_tryforward (struct mbuf *m)

Macro Definition Documentation

V_ipsendredirects

#define V_ipsendredirects   VNET(ipsendredirects)

Definition at line 106 of file ip_fastfwd.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

ip_findroute()

static int ip_findroute ( struct nhop_object **  pnh, struct in_addr  dest, struct mbuf *  m  )

static

Definition at line 193 of file ip_fastfwd.c.

References fib4_lookup(), icmp_error(), ICMP_UNREACH, ICMP_UNREACH_HOST, and IPSTAT_INC.

Referenced by ip_tryforward().

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ip_redir_alloc()

static struct mbuf * ip_redir_alloc ( struct mbuf *  m, struct nhop_object *  nh, u_short  ip_len, struct in_addr *  osrc, struct in_addr *  newgw  )

static

Definition at line 109 of file ip_fastfwd.c.

References in_ifaddr::ia_subnet, in_ifaddr::ia_subnetmask, ip_len, and in_addr::s_addr.

Referenced by ip_tryforward().

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ip_tryforward()

struct mbuf * ip_tryforward

(

struct mbuf *

m

)

Definition at line 233 of file ip_fastfwd.c.

References icmp_error(), ICMP_REDIRECT, ICMP_REDIRECT_HOST, ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS, ICMP_UNREACH, ICMP_UNREACH_FILTER_PROHIB, ICMP_UNREACH_NEEDFRAG, in_localip(), INADDR_ANY, INADDR_BROADCAST, IP_DF, ip::ip_dst, ip_findroute(), ip_fragment(), ip::ip_hl, ip_len, ip::ip_len, ip_off, ip::ip_off, IP_PROBE, ip_redir_alloc(), ip::ip_sum, ip::ip_ttl, IPSTAT_INC, IPTTLDEC, in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_len, V_inet_pfil_head, V_ip_doopts, and V_ipsendredirects.

Referenced by ip_input().

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