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After inpcb route caching was put back in place there is no need for

Browse source 
flowtable anymore (as flowtable was never considered to be useful in
the forwarding path).

Reviewed by:		np
Differential Revision:	https://reviews.freebsd.org/D11448
This commit is contained in:
Bjoern A. Zeeb 2017-07-27 13:03:36 +00:00
parent 6d2909f6a0
commit ae69ad884d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=321618
11 changed files with 1 additions and 1433 deletions
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3
sys/conf/NOTES
View file

@ -646,9 +646,6 @@ options LIBMCHAIN
# libalias library, performing NAT
options LIBALIAS
# flowtable cache
options FLOWTABLE
#
# SCTP is a NEW transport protocol defined by
# RFC2960 updated by RFC3309 and RFC3758.. and

2
sys/conf/options
View file

@ -454,8 +454,6 @@ TCP_RFC7413_MAX_KEYS opt_inet.h
TCP_SIGNATURE opt_ipsec.h
VLAN_ARRAY opt_vlan.h
XBONEHACK
FLOWTABLE opt_route.h
FLOWTABLE_HASH_ALL opt_route.h
#
# SCTP

1185
sys/net/flowtable.c
View file

File diff suppressed because it is too large Load diff

56
sys/net/flowtable.h
View file

@ -1,56 +0,0 @@
/*-
* Copyright (c) 2014 Gleb Smirnoff <glebius@FreeBSD.org>
* Copyright (c) 2008-2010, BitGravity Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Neither the name of the BitGravity Corporation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef _NET_FLOWTABLE_H_
#define _NET_FLOWTABLE_H_
struct flowtable_stat {
uint64_t ft_collisions;
uint64_t ft_misses;
uint64_t ft_free_checks;
uint64_t ft_frees;
uint64_t ft_hits;
uint64_t ft_lookups;
uint64_t ft_fail_lle_invalid;
uint64_t ft_inserts;
};
#ifdef _KERNEL
/*
* Given a flow table, look up the L3 and L2 information
* and return it in the route.
*/
int flowtable_lookup(sa_family_t, struct mbuf *, struct route *);
void flowtable_route_flush(sa_family_t, struct rtentry *);
#endif /* _KERNEL */
#endif /* !_NET_FLOWTABLE_H_ */

82
sys/net/route.c
View file

@ -59,7 +59,6 @@
#include <net/route.h>
#include <net/route_var.h>
#include <net/vnet.h>
#include <net/flowtable.h>
#ifdef RADIX_MPATH
#include <net/radix_mpath.h>
@ -1504,79 +1503,12 @@ rt_mpath_unlink(struct rib_head *rnh, struct rt_addrinfo *info,
}
#endif
#ifdef FLOWTABLE
static struct rtentry *
rt_flowtable_check_route(struct rib_head *rnh, struct rt_addrinfo *info)
{
#if defined(INET6) || defined(INET)
struct radix_node *rn;
#endif
struct rtentry *rt0;
rt0 = NULL;
/* "flow-table" only supports IPv6 and IPv4 at the moment. */
switch (dst->sa_family) {
#ifdef INET6
case AF_INET6:
#endif
#ifdef INET
case AF_INET:
#endif
#if defined(INET6) || defined(INET)
rn = rnh->rnh_matchaddr(dst, &rnh->head);
if (rn && ((rn->rn_flags & RNF_ROOT) == 0)) {
struct sockaddr *mask;
u_char *m, *n;
int len;
/*
* compare mask to see if the new route is
* more specific than the existing one
*/
rt0 = RNTORT(rn);
RT_LOCK(rt0);
RT_ADDREF(rt0);
RT_UNLOCK(rt0);
/*
* A host route is already present, so
* leave the flow-table entries as is.
*/
if (rt0->rt_flags & RTF_HOST) {
RTFREE(rt0);
rt0 = NULL;
} else if (!(flags & RTF_HOST) && netmask) {
mask = rt_mask(rt0);
len = mask->sa_len;
m = (u_char *)mask;
n = (u_char *)netmask;
while (len-- > 0) {
if (*n != *m)
break;
n++;
m++;
}
if (len == 0 || (*n < *m)) {
RTFREE(rt0);
rt0 = NULL;
}
}
}
#endif/* INET6 || INET */
}
return (rt0);
}
#endif
int
rtrequest1_fib(int req, struct rt_addrinfo *info, struct rtentry **ret_nrt,
u_int fibnum)
{
int error = 0;
struct rtentry *rt, *rt_old;
#ifdef FLOWTABLE
struct rtentry *rt0;
#endif
struct radix_node *rn;
struct rib_head *rnh;
struct ifaddr *ifa;
@ -1710,10 +1642,6 @@ rtrequest1_fib(int req, struct rt_addrinfo *info, struct rtentry **ret_nrt,
}
#endif
#ifdef FLOWTABLE
rt0 = rt_flowtable_check_route(rnh, info);
#endif /* FLOWTABLE */
/* XXX mtu manipulation will be done in rnh_addaddr -- itojun */
rn = rnh->rnh_addaddr(ndst, netmask, &rnh->head, rt->rt_nodes);
@ -1748,18 +1676,8 @@ rtrequest1_fib(int req, struct rt_addrinfo *info, struct rtentry **ret_nrt,
ifa_free(rt->rt_ifa);
R_Free(rt_key(rt));
uma_zfree(V_rtzone, rt);
#ifdef FLOWTABLE
if (rt0 != NULL)
RTFREE(rt0);
#endif
return (EEXIST);
}
#ifdef FLOWTABLE
else if (rt0 != NULL) {
flowtable_route_flush(dst->sa_family, rt0);
RTFREE(rt0);
}
#endif
if (rt_old != NULL) {
rt_notifydelete(rt_old, info);

6
sys/netinet/ip_output.c
View file

@ -63,7 +63,6 @@ __FBSDID("$FreeBSD$");
#include <net/netisr.h>
#include <net/pfil.h>
#include <net/route.h>
#include <net/flowtable.h>
#ifdef RADIX_MPATH
#include <net/radix_mpath.h>
#endif
@ -244,11 +243,6 @@ ip_output(struct mbuf *m, struct mbuf *opt, struct route *ro, int flags,
bzero(ro, sizeof (*ro));
}
#ifdef FLOWTABLE
if (ro->ro_rt == NULL)
(void )flowtable_lookup(AF_INET, m, ro);
#endif
if (opt) {
int len = 0;
m = ip_insertoptions(m, opt, &len);

8
sys/netinet6/ip6_output.c
View file

@ -117,10 +117,6 @@ __FBSDID("$FreeBSD$");
#include <netinet6/ip6protosw.h>
#include <netinet6/scope6_var.h>
#ifdef FLOWTABLE
#include <net/flowtable.h>
#endif
extern int in6_mcast_loop;
struct ip6_exthdrs {
@ -502,10 +498,6 @@ ip6_output(struct mbuf *m0, struct ip6_pktopts *opt,
if (opt && opt->ip6po_rthdr)
ro = &opt->ip6po_route;
dst = (struct sockaddr_in6 *)&ro->ro_dst;
#ifdef FLOWTABLE
if (ro->ro_rt == NULL)
(void )flowtable_lookup(AF_INET6, m, (struct route *)ro);
#endif
fibnum = (inp != NULL) ? inp->inp_inc.inc_fibnum : M_GETFIB(m);
again:
/*

2
usr.bin/netstat/Makefile
View file

@ -6,7 +6,7 @@
PROG= netstat
SRCS= if.c inet.c main.c mbuf.c mroute.c netisr.c nl_symbols.c route.c \
unix.c mroute6.c ipsec.c bpf.c pfkey.c sctp.c \
flowtable.c nl_defs.h
nl_defs.h
nl_symbols.c: nlist_symbols
awk '\

88
usr.bin/netstat/flowtable.c
View file

@ -1,88 +0,0 @@
/*-
* Copyright (c) 2014 Gleb Smirnoff <glebius@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <net/flowtable.h>
#include <stdint.h>
#include <stdio.h>
#include <stdbool.h>
#include "netstat.h"
/*
* Print flowtable statistics.
*/
static void
print_stats(struct flowtable_stat *stat)
{
#define p(f, m) if (stat->f || sflag <= 1) \
printf(m, (uintmax_t)stat->f, plural(stat->f))
#define p2(f, m) if (stat->f || sflag <= 1) \
printf(m, (uintmax_t)stat->f, plurales(stat->f))
p(ft_lookups, "\t%ju lookup%s\n");
p(ft_hits, "\t%ju hit%s\n");
p2(ft_misses, "\t%ju miss%s\n");
p(ft_inserts, "\t%ju insert%s\n");
p(ft_collisions, "\t%ju collision%s\n");
p(ft_free_checks, "\t%ju free check%s\n");
p(ft_frees, "\t%ju free%s\n");
p(ft_fail_lle_invalid,
"\t%ju lookup%s with not resolved Layer 2 address\n");
#undef p2
#undef p
}
void
flowtable_stats(void)
{
struct flowtable_stat stat;
if (!live)
return;
if (fetch_stats("net.flowtable.ip4.stat", 0, &stat,
sizeof(stat), NULL) == 0) {
printf("flowtable for IPv4:\n");
print_stats(&stat);
}
if (fetch_stats("net.flowtable.ip6.stat", 0, &stat,
sizeof(stat), NULL) == 0) {
printf("flowtable for IPv6:\n");
print_stats(&stat);
}
}

1
usr.bin/netstat/main.c
View file

@ -480,7 +480,6 @@ main(int argc, char *argv[])
xo_open_container("statistics");
if (sflag) {
rt_stats();
flowtable_stats();
} else
routepr(fib, af);
xo_close_container("statistics");

1
usr.bin/netstat/netstat.h
View file

@ -140,7 +140,6 @@ void intpr(void (*)(char *), int);
void pr_family(int);
void rt_stats(void);
void flowtable_stats(void);
char *routename(struct sockaddr *, int);
const char *netname(struct sockaddr *, struct sockaddr *);