HEADS UP: initialization of kernel global variables (Fwd: svn
commit: r185088)
Marko Zec
zec at icir.org
Wed Nov 19 03:31:31 PST 2008
As a part of an effort to merge network stack virtualization
infrastructure (also known as project virtnet / vimage) to head,
initialization of global kernel variables which are scheduled to become
virtualized should now adhere to a simple yet important new rule.
Initialization of such variables should no longer be performed at
instatiation point, but instead assignments of initial values should be
done in initializer functions. This should have zero functional impact
to existing code, but will allow us to switch between using global
variables and their counterparts residing in virtualization containers
with minimum code churn, and in the long run allow us to intialize
multiple instances of such container structures.
Note that this change applies only to global variables related to the
network stack, and only to the subset of those that have been selected
for virtualization as in sys/net/vnet.h, sys/netinet/vinet.h,
sys/netinet6/vinet6.h, sys/netipsec/vipsec.h etc. No other subsystems
will be affected at this point in time. A MFC of this change to
stable/7 or older branches is not planned.
Cheers,
Marko
---------- Forwarded Message ----------
Subject: svn commit: r185088 - in head/sys: dev/cxgb/ulp/tom net netinet
netinet6 netipsec sys
Date: Wednesday 19 November 2008
From: Marko Zec <zec at freebsd.org>
To: src-committers at freebsd.org, svn-src-all at freebsd.org,
svn-src-head at freebsd.org
Author: zec
Date: Wed Nov 19 09:39:34 2008
New Revision: 185088
URL: http://svn.freebsd.org/changeset/base/185088
Log:
Change the initialization methodology for global variables scheduled
for virtualization.
Instead of initializing the affected global variables at instatiation,
assign initial values to them in initializer functions. As a rule,
initialization at instatiation for such variables should never be
introduced again from now on. Furthermore, enclose all instantiations
of such global variables in #ifdef VIMAGE_GLOBALS blocks.
Essentialy, this change should have zero functional impact. In the
next
phase of merging network stack virtualization infrastructure from
p4/vimage branch, the new initialization methology will allow us to
switch between using global variables and their counterparts residing
in
virtualization containers with minimum code churn, and in the long run
allow us to intialize multiple instances of such container structures.
Discussed at: devsummit Strassburg
Reviewed by: bz, julian
Approved by: julian (mentor)
Obtained from: //depot/projects/vimage-commit2/...
X-MFC after: never
Sponsored by: NLnet Foundation, The FreeBSD Foundation
Modified:
head/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c
head/sys/net/if.c
head/sys/net/if_ethersubr.c
head/sys/net/if_gif.c
head/sys/net/if_loop.c
head/sys/net/raw_cb.c
head/sys/net/route.c
head/sys/netinet/if_ether.c
head/sys/netinet/igmp.c
head/sys/netinet/in.c
head/sys/netinet/in_gif.c
head/sys/netinet/in_mcast.c
head/sys/netinet/in_pcb.c
head/sys/netinet/in_pcb.h
head/sys/netinet/in_proto.c
head/sys/netinet/in_rmx.c
head/sys/netinet/in_var.h
head/sys/netinet/ip_divert.c
head/sys/netinet/ip_fastfwd.c
head/sys/netinet/ip_icmp.c
head/sys/netinet/ip_icmp.h
head/sys/netinet/ip_input.c
head/sys/netinet/ip_output.c
head/sys/netinet/raw_ip.c
head/sys/netinet/tcp_hostcache.c
head/sys/netinet/tcp_input.c
head/sys/netinet/tcp_output.c
head/sys/netinet/tcp_reass.c
head/sys/netinet/tcp_sack.c
head/sys/netinet/tcp_subr.c
head/sys/netinet/tcp_syncache.c
head/sys/netinet/tcp_timewait.c
head/sys/netinet/tcp_var.h
head/sys/netinet/udp_usrreq.c
head/sys/netinet/vinet.h
head/sys/netinet6/frag6.c
head/sys/netinet6/icmp6.c
head/sys/netinet6/in6_ifattach.c
head/sys/netinet6/in6_proto.c
head/sys/netinet6/in6_rmx.c
head/sys/netinet6/in6_src.c
head/sys/netinet6/ip6_forward.c
head/sys/netinet6/ip6_input.c
head/sys/netinet6/ip6_mroute.c
head/sys/netinet6/mld6.c
head/sys/netinet6/nd6.c
head/sys/netinet6/nd6_nbr.c
head/sys/netinet6/nd6_rtr.c
head/sys/netinet6/raw_ip6.c
head/sys/netinet6/scope6.c
head/sys/netinet6/vinet6.h
head/sys/netipsec/ipsec.c
head/sys/netipsec/ipsec.h
head/sys/netipsec/key.c
head/sys/netipsec/keysock.c
head/sys/netipsec/xform_ah.c
head/sys/netipsec/xform_esp.c
head/sys/netipsec/xform_ipcomp.c
head/sys/netipsec/xform_ipip.c
head/sys/sys/vimage.h
Modified: head/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c
==============================================================================
--- head/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c Wed Nov 19 08:56:35 2008
(r185087)
+++ head/sys/dev/cxgb/ulp/tom/cxgb_cpl_io.c Wed Nov 19 09:39:34 2008
(r185088)
@@ -154,11 +154,6 @@ static unsigned int mbuf_wrs[TX_MAX_SEGS
#define TCP_CLOSE 2
#define TCP_DROP 3
-extern int tcp_do_autorcvbuf;
-extern int tcp_do_autosndbuf;
-extern int tcp_autorcvbuf_max;
-extern int tcp_autosndbuf_max;
-
static void t3_send_reset(struct toepcb *toep);
static void send_abort_rpl(struct mbuf *m, struct toedev *tdev, int
rst_status);
static inline void free_atid(struct t3cdev *cdev, unsigned int tid);
Modified: head/sys/net/if.c
==============================================================================
--- head/sys/net/if.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/net/if.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -134,22 +134,21 @@ static int if_getgroupmembers(struct ifg
extern void nd6_setmtu(struct ifnet *);
#endif
-int if_index = 0;
-int ifqmaxlen = IFQ_MAXLEN;
+#ifdef VIMAGE_GLOBALS
struct ifnethead ifnet; /* depend on static init XXX */
struct ifgrouphead ifg_head;
+int if_index;
+static int if_indexlim;
+/* Table of ifnet/cdev by index. Locked with ifnet_lock. */
+static struct ifindex_entry *ifindex_table;
+static struct knlist ifklist;
+#endif
+
+int ifqmaxlen = IFQ_MAXLEN;
struct mtx ifnet_lock;
static if_com_alloc_t *if_com_alloc[256];
static if_com_free_t *if_com_free[256];
-static int if_indexlim = 8;
-static struct knlist ifklist;
-
-/*
- * Table of ifnet/cdev by index. Locked with ifnet_lock.
- */
-static struct ifindex_entry *ifindex_table = NULL;
-
static void filt_netdetach(struct knote *kn);
static int filt_netdev(struct knote *kn, long hint);
@@ -357,6 +356,10 @@ if_init(void *dummy __unused)
{
INIT_VNET_NET(curvnet);
+ V_if_index = 0;
+ V_ifindex_table = NULL;
+ V_if_indexlim = 8;
+
IFNET_LOCK_INIT();
TAILQ_INIT(&V_ifnet);
TAILQ_INIT(&V_ifg_head);
Modified: head/sys/net/if_ethersubr.c
==============================================================================
--- head/sys/net/if_ethersubr.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/net/if_ethersubr.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -142,8 +142,10 @@ MALLOC_DEFINE(M_ARPCOM, "arpcom", "802.*
int
ether_ipfw_chk(struct mbuf **m0, struct ifnet *dst,
struct ip_fw **rule, int shared);
+#ifdef VIMAGE_GLOBALS
static int ether_ipfw;
#endif
+#endif
/*
* Ethernet output routine.
Modified: head/sys/net/if_gif.c
==============================================================================
--- head/sys/net/if_gif.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/net/if_gif.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -94,7 +94,18 @@
*/
static struct mtx gif_mtx;
static MALLOC_DEFINE(M_GIF, "gif", "Generic Tunnel Interface");
+
+#ifdef VIMAGE_GLOBALS
static LIST_HEAD(, gif_softc) gif_softc_list;
+static int max_gif_nesting;
+static int parallel_tunnels;
+#ifdef INET
+int ip_gif_ttl;
+#endif
+#ifdef INET6
+int ip6_gif_hlim;
+#endif
+#endif
void (*ng_gif_input_p)(struct ifnet *ifp, struct mbuf **mp, int af);
void (*ng_gif_input_orphan_p)(struct ifnet *ifp, struct mbuf *m, int
af);
@@ -123,9 +134,6 @@ SYSCTL_NODE(_net_link, IFT_GIF, gif, CTL
*/
#define MAX_GIF_NEST 1
#endif
-#ifndef VIMAGE
-static int max_gif_nesting = MAX_GIF_NEST;
-#endif
SYSCTL_V_INT(V_NET, vnet_gif, _net_link_gif, OID_AUTO, max_nesting,
CTLFLAG_RW, max_gif_nesting, 0, "Max nested tunnels");
@@ -140,11 +148,6 @@ SYSCTL_V_INT(V_NET, vnet_gif, _net_inet6
* pair of addresses. Some applications require this functionality so
* we allow control over this check here.
*/
-#ifdef XBONEHACK
-static int parallel_tunnels = 1;
-#else
-static int parallel_tunnels = 0;
-#endif
SYSCTL_V_INT(V_NET, vnet_gif, _net_link_gif, OID_AUTO,
parallel_tunnels,
CTLFLAG_RW, parallel_tunnels, 0, "Allow parallel tunnels?");
@@ -251,12 +254,21 @@ gifmodevent(mod, type, data)
switch (type) {
case MOD_LOAD:
mtx_init(&gif_mtx, "gif_mtx", NULL, MTX_DEF);
- LIST_INIT(&V_gif_softc_list);
- if_clone_attach(&gif_cloner);
+ LIST_INIT(&V_gif_softc_list);
+ V_max_gif_nesting = MAX_GIF_NEST;
+#ifdef XBONEHACK
+ V_parallel_tunnels = 1;
+#else
+ V_parallel_tunnels = 0;
+#endif
+#ifdef INET
+ V_ip_gif_ttl = GIF_TTL;
+#endif
#ifdef INET6
V_ip6_gif_hlim = GIF_HLIM;
#endif
+ if_clone_attach(&gif_cloner);
break;
case MOD_UNLOAD:
Modified: head/sys/net/if_loop.c
==============================================================================
--- head/sys/net/if_loop.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/net/if_loop.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -96,7 +96,9 @@ int looutput(struct ifnet *ifp, struct
static int lo_clone_create(struct if_clone *, int, caddr_t);
static void lo_clone_destroy(struct ifnet *);
-struct ifnet *loif = NULL; /* Used externally */
+#ifdef VIMAGE_GLOBALS
+struct ifnet *loif; /* Used externally */
+#endif
IFC_SIMPLE_DECLARE(lo, 1);
@@ -142,6 +144,7 @@ loop_modevent(module_t mod, int type, vo
switch (type) {
case MOD_LOAD:
+ V_loif = NULL;
if_clone_attach(&lo_cloner);
break;
Modified: head/sys/net/raw_cb.c
==============================================================================
--- head/sys/net/raw_cb.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/net/raw_cb.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -57,7 +57,9 @@
*/
struct mtx rawcb_mtx;
+#ifdef VIMAGE_GLOBALS
struct rawcb_list_head rawcb_list;
+#endif
SYSCTL_NODE(_net, OID_AUTO, raw, CTLFLAG_RW, 0, "Raw socket
infrastructure");
Modified: head/sys/net/route.c
==============================================================================
--- head/sys/net/route.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/net/route.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -84,6 +84,7 @@ SYSCTL_INT(_net, OID_AUTO, add_addr_allf
&rt_add_addr_allfibs, 0, "");
TUNABLE_INT("net.add_addr_allfibs", &rt_add_addr_allfibs);
+#ifdef VIMAGE_GLOBALS
static struct rtstat rtstat;
/* by default only the first 'row' of tables will be accessed. */
@@ -96,6 +97,7 @@ static struct rtstat rtstat;
struct radix_node_head *rt_tables[RT_MAXFIBS][AF_MAX+1];
static int rttrash; /* routes not in table but not freed */
+#endif
static void rt_maskedcopy(struct sockaddr *,
struct sockaddr *, struct sockaddr *);
Modified: head/sys/netinet/if_ether.c
==============================================================================
--- head/sys/netinet/if_ether.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/if_ether.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -82,7 +82,12 @@ SYSCTL_DECL(_net_link_ether);
SYSCTL_NODE(_net_link_ether, PF_INET, inet, CTLFLAG_RW, 0, "");
/* timer values */
-static int arpt_keep = (20*60); /* once resolved, good for 20 more
minutes */
+#ifdef VIMAGE_GLOBALS
+static int arpt_keep; /* once resolved, good for 20 more minutes */
+static int arp_maxtries;
+static int useloopback; /* use loopback interface for local traffic */
+static int arp_proxyall;
+#endif
SYSCTL_INT(_net_link_ether_inet, OID_AUTO, max_age, CTLFLAG_RW,
&arpt_keep, 0, "ARP entry lifetime in seconds");
@@ -99,10 +104,6 @@ struct llinfo_arp {
static struct ifqueue arpintrq;
-static int arp_maxtries = 5;
-static int useloopback = 1; /* use loopback interface for local traffic
*/
-static int arp_proxyall = 0;
-
SYSCTL_V_INT(V_NET, vnet_inet, _net_link_ether_inet, OID_AUTO,
maxtries,
CTLFLAG_RW, arp_maxtries, 0,
"ARP resolution attempts before returning error");
@@ -1076,6 +1077,12 @@ arp_ifinit2(struct ifnet *ifp, struct if
static void
arp_init(void)
{
+ INIT_VNET_INET(curvnet);
+
+ V_arpt_keep = (20*60); /* once resolved, good for 20 more minutes */
+ V_arp_maxtries = 5;
+ V_useloopback = 1; /* use loopback interface for local traffic */
+ V_arp_proxyall = 0;
arpintrq.ifq_maxlen = 50;
mtx_init(&arpintrq.ifq_mtx, "arp_inq", NULL, MTX_DEF);
Modified: head/sys/netinet/igmp.c
==============================================================================
--- head/sys/netinet/igmp.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/igmp.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -80,7 +80,9 @@ static MALLOC_DEFINE(M_IGMP, "igmp", "ig
static struct router_info *find_rti(struct ifnet *ifp);
static void igmp_sendpkt(struct in_multi *, int, unsigned long);
+#ifdef VIMAGE_GLOBALS
static struct igmpstat igmpstat;
+#endif
SYSCTL_V_STRUCT(V_NET, vnet_inet, _net_inet_igmp, IGMPCTL_STATS,
stats, CTLFLAG_RW, igmpstat, igmpstat, "");
@@ -92,8 +94,10 @@ SYSCTL_V_STRUCT(V_NET, vnet_inet, _net_i
* reference counting is used. We allow unlocked reads of router_info
data
* when accessed via an in_multi read-only.
*/
-static struct mtx igmp_mtx;
+#ifdef VIMAGE_GLOBALS
static SLIST_HEAD(, router_info) router_info_head;
+#endif
+static struct mtx igmp_mtx;
static int igmp_timers_are_running;
/*
Modified: head/sys/netinet/in.c
==============================================================================
--- head/sys/netinet/in.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -66,18 +66,20 @@ static int in_ifinit(struct ifnet *,
struct in_ifaddr *, struct sockaddr_in *, int);
static void in_purgemaddrs(struct ifnet *);
-static int subnetsarelocal = 0;
+#ifdef VIMAGE_GLOBALS
+static int subnetsarelocal;
+static int sameprefixcarponly;
+extern struct inpcbinfo ripcbinfo;
+extern struct inpcbinfo udbinfo;
+#endif
+
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO,
subnets_are_local,
CTLFLAG_RW, subnetsarelocal, 0,
"Treat all subnets as directly connected");
-static int sameprefixcarponly = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO,
same_prefix_carp_only,
CTLFLAG_RW, sameprefixcarponly, 0,
"Refuse to create same prefixes on different interfaces");
-extern struct inpcbinfo ripcbinfo;
-extern struct inpcbinfo udbinfo;
-
/*
* Return 1 if an internet address is for a ``local'' host
* (one to which we have a connection). If subnetsarelocal
Modified: head/sys/netinet/in_gif.c
==============================================================================
--- head/sys/netinet/in_gif.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in_gif.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -85,7 +85,9 @@ struct protosw in_gif_protosw = {
.pr_usrreqs = &rip_usrreqs
};
-static int ip_gif_ttl = GIF_TTL;
+#ifdef VIMAGE_GLOBALS
+extern int ip_gif_ttl;
+#endif
SYSCTL_V_INT(V_NET, vnet_gif, _net_inet_ip, IPCTL_GIF_TTL, gifttl,
CTLFLAG_RW, ip_gif_ttl, 0, "");
Modified: head/sys/netinet/in_mcast.c
==============================================================================
--- head/sys/netinet/in_mcast.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in_mcast.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -86,7 +86,9 @@ static MALLOC_DEFINE(M_IPMSOURCE, "in_ms
* ip_output() to send IGMP packets while holding the lock; this
probably is
* not quite desirable.
*/
+#ifdef VIMAGE_GLOBALS
struct in_multihead in_multihead; /* XXX BSS initialization */
+#endif
struct mtx in_multi_mtx;
MTX_SYSINIT(in_multi_mtx, &in_multi_mtx, "in_multi_mtx", MTX_DEF |
MTX_RECURSE);
Modified: head/sys/netinet/in_pcb.c
==============================================================================
--- head/sys/netinet/in_pcb.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in_pcb.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -84,32 +84,34 @@ __FBSDID("$FreeBSD$");
#include <security/mac/mac_framework.h>
+#ifdef VIMAGE_GLOBALS
/*
* These configure the range of local port addresses assigned to
* "unspecified" outgoing connections/packets/whatever.
*/
-int ipport_lowfirstauto = IPPORT_RESERVED - 1; /* 1023 */
-int ipport_lowlastauto = IPPORT_RESERVEDSTART; /* 600 */
-int ipport_firstauto = IPPORT_EPHEMERALFIRST; /* 10000 */
-int ipport_lastauto = IPPORT_EPHEMERALLAST; /* 65535 */
-int ipport_hifirstauto = IPPORT_HIFIRSTAUTO; /* 49152 */
-int ipport_hilastauto = IPPORT_HILASTAUTO; /* 65535 */
+int ipport_lowfirstauto;
+int ipport_lowlastauto;
+int ipport_firstauto;
+int ipport_lastauto;
+int ipport_hifirstauto;
+int ipport_hilastauto;
/*
* Reserved ports accessible only to root. There are significant
* security considerations that must be accounted for when changing
these,
* but the security benefits can be great. Please be careful.
*/
-int ipport_reservedhigh = IPPORT_RESERVED - 1; /* 1023 */
-int ipport_reservedlow = 0;
+int ipport_reservedhigh;
+int ipport_reservedlow;
/* Variables dealing with random ephemeral port allocation. */
-int ipport_randomized = 1; /* user controlled via sysctl */
-int ipport_randomcps = 10; /* user controlled via sysctl */
-int ipport_randomtime = 45; /* user controlled via sysctl */
-int ipport_stoprandom = 0; /* toggled by ipport_tick */
+int ipport_randomized;
+int ipport_randomcps;
+int ipport_randomtime;
+int ipport_stoprandom;
int ipport_tcpallocs;
int ipport_tcplastcount;
+#endif
#define RANGECHK(var, min, max) \
if ((var) < (min)) { (var) = (min); } \
Modified: head/sys/netinet/in_pcb.h
==============================================================================
--- head/sys/netinet/in_pcb.h Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in_pcb.h Wed Nov 19 09:39:34 2008 (r185088)
@@ -450,6 +450,8 @@ extern int ipport_lastauto;
extern int ipport_hifirstauto;
extern int ipport_hilastauto;
extern int ipport_randomized;
+extern int ipport_randomcps;
+extern int ipport_randomtime;
extern int ipport_stoprandom;
extern int ipport_tcpallocs;
extern struct callout ipport_tick_callout;
Modified: head/sys/netinet/in_proto.c
==============================================================================
--- head/sys/netinet/in_proto.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in_proto.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -193,6 +193,7 @@ struct protosw inetsw[] = {
.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
.pr_input = icmp_input,
.pr_ctloutput = rip_ctloutput,
+ .pr_init = icmp_init,
.pr_usrreqs = &rip_usrreqs
},
{
Modified: head/sys/netinet/in_rmx.c
==============================================================================
--- head/sys/netinet/in_rmx.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in_rmx.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -151,17 +151,20 @@ in_matroute(void *v_arg, struct radix_no
return rn;
}
-static int rtq_reallyold = 60*60; /* one hour is "really old" */
+#ifdef VIMAGE_GLOBALS
+static int rtq_reallyold;
+static int rtq_minreallyold;
+static int rtq_toomany;
+#endif
+
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_RTEXPIRE, rtexpire,
CTLFLAG_RW, rtq_reallyold, 0,
"Default expiration time on dynamically learned routes");
-static int rtq_minreallyold = 10; /* never automatically crank down to
less */
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_RTMINEXPIRE,
rtminexpire, CTLFLAG_RW, rtq_minreallyold, 0,
"Minimum time to attempt to hold onto dynamically learned routes");
-static int rtq_toomany = 128; /* 128 cached routes is "too many" */
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_RTMAXCACHE,
rtmaxcache, CTLFLAG_RW, rtq_toomany, 0,
"Upper limit on dynamically learned routes");
@@ -256,8 +259,10 @@ in_rtqkill(struct radix_node *rn, void *
}
#define RTQ_TIMEOUT 60*10 /* run no less than once every ten minutes */
-static int rtq_timeout = RTQ_TIMEOUT;
+#ifdef VIMAGE_GLOBALS
+static int rtq_timeout;
static struct callout rtq_timer;
+#endif
static void in_rtqtimo_one(void *rock);
@@ -376,6 +381,11 @@ in_inithead(void **head, int off)
if (off == 0) /* XXX MRT see above */
return 1; /* only do the rest for a real routing table */
+ V_rtq_reallyold = 60*60; /* one hour is "really old" */
+ V_rtq_minreallyold = 10; /* never automatically crank down to less */
+ V_rtq_toomany = 128; /* 128 cached routes is "too many" */
+ V_rtq_timeout = RTQ_TIMEOUT;
+
rnh = *head;
rnh->rnh_addaddr = in_addroute;
rnh->rnh_matchaddr = in_matroute;
Modified: head/sys/netinet/in_var.h
==============================================================================
--- head/sys/netinet/in_var.h Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/in_var.h Wed Nov 19 09:39:34 2008 (r185088)
@@ -138,6 +138,15 @@ do { \
#endif
/*
+ * IP datagram reassembly.
+ */
+#define IPREASS_NHASH_LOG2 6
+#define IPREASS_NHASH (1 << IPREASS_NHASH_LOG2)
+#define IPREASS_HMASK (IPREASS_NHASH - 1)
+#define IPREASS_HASH(x,y) \
+ (((((x) & 0xF) | ((((x) >> 8) & 0xF) << 4)) ^ (y)) & IPREASS_HMASK)
+
+/*
* This information should be part of the ifnet structure but we don't
wish
* to change that - as it might break a number of things
*/
Modified: head/sys/netinet/ip_divert.c
==============================================================================
--- head/sys/netinet/ip_divert.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/ip_divert.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -112,8 +112,10 @@ __FBSDID("$FreeBSD$");
*/
/* Internal variables. */
+#ifdef VIMAGE_GLOBALS
static struct inpcbhead divcb;
static struct inpcbinfo divcbinfo;
+#endif
static u_long div_sendspace = DIVSNDQ; /* XXX sysctl ? */
static u_long div_recvspace = DIVRCVQ; /* XXX sysctl ? */
Modified: head/sys/netinet/ip_fastfwd.c
==============================================================================
--- head/sys/netinet/ip_fastfwd.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/ip_fastfwd.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -106,7 +106,9 @@ __FBSDID("$FreeBSD$");
#include <machine/in_cksum.h>
-static int ipfastforward_active = 0;
+#ifdef VIMAGE_GLOBALS
+static int ipfastforward_active;
+#endif
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, fastforwarding,
CTLFLAG_RW, ipfastforward_active, 0, "Enable fast IP forwarding");
Modified: head/sys/netinet/ip_icmp.c
==============================================================================
--- head/sys/netinet/ip_icmp.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/ip_icmp.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -77,47 +77,51 @@ __FBSDID("$FreeBSD$");
* host table maintenance routines.
*/
-struct icmpstat icmpstat;
+#ifdef VIMAGE_GLOBALS
+struct icmpstat icmpstat;
+static int icmpmaskrepl;
+static u_int icmpmaskfake;
+static int drop_redirect;
+static int log_redirect;
+static int icmplim;
+static int icmplim_output;
+static char reply_src[IFNAMSIZ];
+static int icmp_rfi;
+static int icmp_quotelen;
+static int icmpbmcastecho;
+#endif
+
SYSCTL_V_STRUCT(V_NET, vnet_inet, _net_inet_icmp, ICMPCTL_STATS, stats,
CTLFLAG_RW, icmpstat, icmpstat, "");
-static int icmpmaskrepl = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, ICMPCTL_MASKREPL,
maskrepl,
CTLFLAG_RW, icmpmaskrepl, 0,
"Reply to ICMP Address Mask Request packets.");
-static u_int icmpmaskfake = 0;
SYSCTL_V_UINT(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO, maskfake,
CTLFLAG_RW,
icmpmaskfake, 0, "Fake reply to ICMP Address Mask Request packets.");
-static int drop_redirect = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO, drop_redirect,
CTLFLAG_RW, drop_redirect, 0, "Ignore ICMP redirects");
-static int log_redirect = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO, log_redirect,
CTLFLAG_RW, log_redirect, 0, "Log ICMP redirects to the console");
-static int icmplim = 200;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, ICMPCTL_ICMPLIM,
icmplim,
CTLFLAG_RW, icmplim, 0, "Maximum number of ICMP responses per
second");
-static int icmplim_output = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO,
icmplim_output,
CTLFLAG_RW, icmplim_output, 0,
"Enable rate limiting of ICMP responses");
-static char reply_src[IFNAMSIZ];
SYSCTL_V_STRING(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO, reply_src,
CTLFLAG_RW, reply_src, IFNAMSIZ,
"icmp reply source for non-local packets.");
-static int icmp_rfi = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO,
reply_from_interface,
CTLFLAG_RW, icmp_rfi, 0, "ICMP reply from incoming interface for "
"non-local packets");
-static int icmp_quotelen = 8;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO, quotelen,
CTLFLAG_RW,
icmp_quotelen, 0, "Number of bytes from original packet to "
"quote in ICMP reply");
@@ -126,7 +130,6 @@ SYSCTL_V_INT(V_NET, vnet_inet, _net_inet
* ICMP broadcast echo sysctl
*/
-static int icmpbmcastecho = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_icmp, OID_AUTO, bmcastecho,
CTLFLAG_RW, icmpbmcastecho, 0, "");
@@ -140,6 +143,22 @@ static void icmp_send(struct mbuf *, str
extern struct protosw inetsw[];
+void
+icmp_init(void)
+{
+ INIT_VNET_INET(curvnet);
+
+ V_icmpmaskrepl = 0;
+ V_icmpmaskfake = 0;
+ V_drop_redirect = 0;
+ V_log_redirect = 0;
+ V_icmplim = 200;
+ V_icmplim_output = 1;
+ V_icmp_rfi = 0;
+ V_icmp_quotelen = 8;
+ V_icmpbmcastecho = 0;
+}
+
/*
* Generate an error packet of type error
* in response to bad packet ip.
Modified: head/sys/netinet/ip_icmp.h
==============================================================================
--- head/sys/netinet/ip_icmp.h Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/ip_icmp.h Wed Nov 19 09:39:34 2008 (r185088)
@@ -204,6 +204,7 @@ struct icmp {
#ifdef _KERNEL
void icmp_error(struct mbuf *, int, int, n_long, int);
void icmp_input(struct mbuf *, int);
+void icmp_init(void);
int ip_next_mtu(int, int);
#endif
Modified: head/sys/netinet/ip_input.c
==============================================================================
--- head/sys/netinet/ip_input.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/ip_input.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -89,33 +89,47 @@ __FBSDID("$FreeBSD$");
CTASSERT(sizeof(struct ip) == 20);
#endif
-int rsvp_on = 0;
+#ifdef VIMAGE_GLOBALS
+static int ipsendredirects;
+static int ip_checkinterface;
+static int ip_keepfaith;
+static int ip_sendsourcequench;
+int ip_defttl;
+int ip_do_randomid;
+int ipforwarding;
+struct in_ifaddrhead in_ifaddrhead; /* first inet address */
+struct in_ifaddrhashhead *in_ifaddrhashtbl; /* inet addr hash table */
+u_long in_ifaddrhmask; /* mask for hash table */
+struct ipstat ipstat;
+static int ip_rsvp_on;
+struct socket *ip_rsvpd;
+int rsvp_on;
+static TAILQ_HEAD(ipqhead, ipq) ipq[IPREASS_NHASH];
+static int maxnipq; /* Administrative limit on # reass queues. */
+static int maxfragsperpacket;
+int ipstealth;
+static int nipq; /* Total # of reass queues */
+#endif
-int ipforwarding = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_FORWARDING,
forwarding, CTLFLAG_RW, ipforwarding, 0,
"Enable IP forwarding between interfaces");
-static int ipsendredirects = 1; /* XXX */
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_SENDREDIRECTS,
redirect, CTLFLAG_RW, ipsendredirects, 0,
"Enable sending IP redirects");
-int ip_defttl = IPDEFTTL;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_DEFTTL,
ttl, CTLFLAG_RW, ip_defttl, 0, "Maximum TTL on IP packets");
-static int ip_keepfaith = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_KEEPFAITH,
keepfaith, CTLFLAG_RW, ip_keepfaith, 0,
"Enable packet capture for FAITH IPv4->IPv6 translater daemon");
-static int ip_sendsourcequench = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO,
sendsourcequench, CTLFLAG_RW, ip_sendsourcequench, 0,
"Enable the transmission of source quench packets");
-int ip_do_randomid = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, random_id,
CTLFLAG_RW, ip_do_randomid, 0, "Assign random ip_id values");
@@ -132,7 +146,6 @@ SYSCTL_V_INT(V_NET, vnet_inet, _net_inet
* to the loopback interface instead of the interface where the
* packets for those addresses are received.
*/
-static int ip_checkinterface = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO,
check_interface, CTLFLAG_RW, ip_checkinterface, 0,
"Verify packet arrives on correct interface");
@@ -145,9 +158,6 @@ static int ipqmaxlen = IFQ_MAXLEN;
extern struct domain inetdomain;
extern struct protosw inetsw[];
u_char ip_protox[IPPROTO_MAX];
-struct in_ifaddrhead in_ifaddrhead; /* first inet address */
-struct in_ifaddrhashhead *in_ifaddrhashtbl; /* inet addr hash table */
-u_long in_ifaddrhmask; /* mask for hash table */
SYSCTL_INT(_net_inet_ip, IPCTL_INTRQMAXLEN, intr_queue_maxlen,
CTLFLAG_RW,
&ipintrq.ifq_maxlen, 0, "Maximum size of the IP input queue");
@@ -155,21 +165,10 @@ SYSCTL_INT(_net_inet_ip, IPCTL_INTRQDROP
&ipintrq.ifq_drops, 0,
"Number of packets dropped from the IP input queue");
-struct ipstat ipstat;
SYSCTL_V_STRUCT(V_NET, vnet_inet, _net_inet_ip, IPCTL_STATS, stats,
CTLFLAG_RW,
ipstat, ipstat, "IP statistics (struct ipstat, netinet/ip_var.h)");
-/*
- * IP datagram reassembly.
- */
-#define IPREASS_NHASH_LOG2 6
-#define IPREASS_NHASH (1 << IPREASS_NHASH_LOG2)
-#define IPREASS_HMASK (IPREASS_NHASH - 1)
-#define IPREASS_HASH(x,y) \
- (((((x) & 0xF) | ((((x) >> 8) & 0xF) << 4)) ^ (y)) & IPREASS_HMASK)
-
static uma_zone_t ipq_zone;
-static TAILQ_HEAD(ipqhead, ipq) ipq[IPREASS_NHASH];
static struct mtx ipqlock;
#define IPQ_LOCK() mtx_lock(&ipqlock)
@@ -180,13 +179,10 @@ static struct mtx ipqlock;
static void maxnipq_update(void);
static void ipq_zone_change(void *);
-static int maxnipq; /* Administrative limit on # reass queues. */
-static int nipq = 0; /* Total # of reass queues */
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, fragpackets,
CTLFLAG_RD, nipq, 0,
"Current number of IPv4 fragment reassembly queue entries");
-static int maxfragsperpacket;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO,
maxfragsperpacket,
CTLFLAG_RW, maxfragsperpacket, 0,
"Maximum number of IPv4 fragments allowed per packet");
@@ -199,7 +195,6 @@ SYSCTL_INT(_net_inet_ip, IPCTL_DEFMTU, m
#endif
#ifdef IPSTEALTH
-int ipstealth = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, stealth,
CTLFLAG_RW,
ipstealth, 0, "IP stealth mode, no TTL decrementation on
forwarding");
#endif
@@ -225,6 +220,37 @@ ip_init(void)
struct protosw *pr;
int i;
+ V_ipsendredirects = 1; /* XXX */
+ V_ip_checkinterface = 0;
+ V_ip_keepfaith = 0;
+ V_ip_sendsourcequench = 0;
+ V_rsvp_on = 0;
+ V_ip_defttl = IPDEFTTL;
+ V_ip_do_randomid = 0;
+ V_ipforwarding = 0;
+ V_ipstealth = 0;
+ V_nipq = 0; /* Total # of reass queues */
+
+ V_ipport_lowfirstauto = IPPORT_RESERVED - 1; /* 1023 */
+ V_ipport_lowlastauto = IPPORT_RESERVEDSTART; /* 600 */
+ V_ipport_firstauto = IPPORT_EPHEMERALFIRST; /* 10000 */
+ V_ipport_lastauto = IPPORT_EPHEMERALLAST; /* 65535 */
+ V_ipport_hifirstauto = IPPORT_HIFIRSTAUTO; /* 49152 */
+ V_ipport_hilastauto = IPPORT_HILASTAUTO; /* 65535 */
+ V_ipport_reservedhigh = IPPORT_RESERVED - 1; /* 1023 */
+ V_ipport_reservedlow = 0;
+ V_ipport_randomized = 1; /* user controlled via sysctl */
+ V_ipport_randomcps = 10; /* user controlled via sysctl */
+ V_ipport_randomtime = 45; /* user controlled via sysctl */
+ V_ipport_stoprandom = 0; /* toggled by ipport_tick */
+
+#ifdef NOTYET
+ /* XXX global static but not instantiated in this file */
+ V_ipfastforward_active = 0;
+ V_subnetsarelocal = 0;
+ V_sameprefixcarponly = 0;
+#endif
+
TAILQ_INIT(&V_in_ifaddrhead);
V_in_ifaddrhashtbl = hashinit(INADDR_NHASH, M_IFADDR,
&V_in_ifaddrhmask);
pr = pffindproto(PF_INET, IPPROTO_RAW, SOCK_RAW);
@@ -1591,8 +1617,6 @@ makedummy:
* locking. This code remains in ip_input.c as ip_mroute.c is
optionally
* compiled.
*/
-static int ip_rsvp_on;
-struct socket *ip_rsvpd;
int
ip_rsvp_init(struct socket *so)
{
Modified: head/sys/netinet/ip_output.c
==============================================================================
--- head/sys/netinet/ip_output.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/ip_output.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -83,7 +83,9 @@ __FBSDID("$FreeBSD$");
(ntohl(a.s_addr)>>8)&0xFF,\
(ntohl(a.s_addr))&0xFF, y);
+#ifdef VIMAGE_GLOBALS
u_short ip_id;
+#endif
#ifdef MBUF_STRESS_TEST
int mbuf_frag_size = 0;
Modified: head/sys/netinet/raw_ip.c
==============================================================================
--- head/sys/netinet/raw_ip.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/raw_ip.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -76,8 +76,10 @@ __FBSDID("$FreeBSD$");
#include <security/mac/mac_framework.h>
+#ifdef VIMAGE_GLOBALS
struct inpcbhead ripcb;
struct inpcbinfo ripcbinfo;
+#endif
/* control hooks for ipfw and dummynet */
ip_fw_ctl_t *ip_fw_ctl_ptr = NULL;
@@ -91,7 +93,9 @@ ip_dn_ctl_t *ip_dn_ctl_ptr = NULL;
/*
* The socket used to communicate with the multicast routing daemon.
*/
+#ifdef VIMAGE_GLOBALS
struct socket *ip_mrouter;
+#endif
/*
* The various mrouter and rsvp functions.
Modified: head/sys/netinet/tcp_hostcache.c
==============================================================================
--- head/sys/netinet/tcp_hostcache.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/tcp_hostcache.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -146,9 +146,11 @@ struct tcp_hostcache {
int prune;
int purgeall;
};
-static struct tcp_hostcache tcp_hostcache;
+#ifdef VIMAGE_GLOBALS
+static struct tcp_hostcache tcp_hostcache;
static struct callout tcp_hc_callout;
+#endif
static struct hc_metrics *tcp_hc_lookup(struct in_conninfo *);
static struct hc_metrics *tcp_hc_insert(struct in_conninfo *);
Modified: head/sys/netinet/tcp_input.c
==============================================================================
--- head/sys/netinet/tcp_input.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/tcp_input.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -99,7 +99,21 @@ __FBSDID("$FreeBSD$");
static const int tcprexmtthresh = 3;
+#ifdef VIMAGE_GLOBALS
struct tcpstat tcpstat;
+int blackhole;
+int tcp_delack_enabled;
+int drop_synfin;
+int tcp_do_rfc3042;
+int tcp_do_rfc3390;
+int tcp_do_ecn;
+int tcp_ecn_maxretries;
+int tcp_insecure_rst;
+int tcp_do_autorcvbuf;
+int tcp_autorcvbuf_inc;
+int tcp_autorcvbuf_max;
+#endif
+
SYSCTL_V_STRUCT(V_NET, vnet_inet, _net_inet_tcp, TCPCTL_STATS, stats,
CTLFLAG_RW, tcpstat , tcpstat,
"TCP statistics (struct tcpstat, netinet/tcp_var.h)");
@@ -108,59 +122,50 @@ int tcp_log_in_vain = 0;
SYSCTL_INT(_net_inet_tcp, OID_AUTO, log_in_vain, CTLFLAG_RW,
&tcp_log_in_vain, 0, "Log all incoming TCP segments to closed
ports");
-static int blackhole = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, blackhole,
CTLFLAG_RW,
blackhole, 0, "Do not send RST on segments to closed ports");
-int tcp_delack_enabled = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, delayed_ack,
CTLFLAG_RW, tcp_delack_enabled, 0,
"Delay ACK to try and piggyback it onto a data packet");
-static int drop_synfin = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, drop_synfin,
CTLFLAG_RW, drop_synfin, 0, "Drop TCP packets with SYN+FIN set");
-static int tcp_do_rfc3042 = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, rfc3042,
CTLFLAG_RW,
tcp_do_rfc3042, 0, "Enable RFC 3042 (Limited Transmit)");
-static int tcp_do_rfc3390 = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, rfc3390,
CTLFLAG_RW,
tcp_do_rfc3390, 0,
"Enable RFC 3390 (Increasing TCP's Initial Congestion Window)");
-int tcp_do_ecn = 0;
-int tcp_ecn_maxretries = 1;
SYSCTL_NODE(_net_inet_tcp, OID_AUTO, ecn, CTLFLAG_RW, 0, "TCP ECN");
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_ecn, OID_AUTO, enable,
CTLFLAG_RW, tcp_do_ecn, 0, "TCP ECN support");
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_ecn, OID_AUTO, maxretries,
CTLFLAG_RW, tcp_ecn_maxretries, 0, "Max retries before giving up on
ECN");
-static int tcp_insecure_rst = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, insecure_rst,
CTLFLAG_RW, tcp_insecure_rst, 0,
"Follow the old (insecure) criteria for accepting RST packets");
-int tcp_do_autorcvbuf = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, recvbuf_auto,
CTLFLAG_RW, tcp_do_autorcvbuf, 0,
"Enable automatic receive buffer sizing");
-int tcp_autorcvbuf_inc = 16*1024;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, recvbuf_inc,
CTLFLAG_RW, tcp_autorcvbuf_inc, 0,
"Incrementor step size of automatic receive buffer");
-int tcp_autorcvbuf_max = 256*1024;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, recvbuf_max,
CTLFLAG_RW, tcp_autorcvbuf_max, 0,
"Max size of automatic receive buffer");
+#ifdef VIMAGE_GLOBALS
struct inpcbhead tcb;
-#define tcb6 tcb /* for KAME src sync over BSD*'s */
struct inpcbinfo tcbinfo;
+#endif
+#define tcb6 tcb /* for KAME src sync over BSD*'s */
static void tcp_dooptions(struct tcpopt *, u_char *, int, int);
static void tcp_do_segment(struct mbuf *, struct tcphdr *,
Modified: head/sys/netinet/tcp_output.c
==============================================================================
--- head/sys/netinet/tcp_output.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/tcp_output.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -87,39 +87,42 @@ __FBSDID("$FreeBSD$");
extern struct mbuf *m_copypack();
#endif
-int path_mtu_discovery = 1;
+#ifdef VIMAGE_GLOBALS
+int path_mtu_discovery;
+int ss_fltsz;
+int ss_fltsz_local;
+int tcp_do_newreno;
+int tcp_do_tso;
+int tcp_do_autosndbuf;
+int tcp_autosndbuf_inc;
+int tcp_autosndbuf_max;
+#endif
+
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO,
path_mtu_discovery,
CTLFLAG_RW, path_mtu_discovery, 1, "Enable Path MTU Discovery");
-int ss_fltsz = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO,
slowstart_flightsize, CTLFLAG_RW,
ss_fltsz, 1, "Slow start flight size");
-int ss_fltsz_local = 4;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO,
local_slowstart_flightsize, CTLFLAG_RW,
ss_fltsz_local, 1, "Slow start flight size for local networks");
-int tcp_do_newreno = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, newreno,
CTLFLAG_RW,
tcp_do_newreno, 0, "Enable NewReno Algorithms");
-int tcp_do_tso = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, tso,
CTLFLAG_RW,
tcp_do_tso, 0, "Enable TCP Segmentation Offload");
-int tcp_do_autosndbuf = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, sendbuf_auto,
CTLFLAG_RW,
tcp_do_autosndbuf, 0, "Enable automatic send buffer sizing");
-int tcp_autosndbuf_inc = 8*1024;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, sendbuf_inc,
CTLFLAG_RW, tcp_autosndbuf_inc, 0,
"Incrementor step size of automatic send buffer");
-int tcp_autosndbuf_max = 256*1024;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp, OID_AUTO, sendbuf_max,
CTLFLAG_RW, tcp_autosndbuf_max, 0,
"Max size of automatic send buffer");
Modified: head/sys/netinet/tcp_reass.c
==============================================================================
--- head/sys/netinet/tcp_reass.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/tcp_reass.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -74,25 +74,28 @@ __FBSDID("$FreeBSD$");
#include <netinet/tcp_debug.h>
#endif /* TCPDEBUG */
+#ifdef VIMAGE_GLOBALS
+static int tcp_reass_maxseg;
+int tcp_reass_qsize;
+static int tcp_reass_maxqlen;
+static int tcp_reass_overflows;
+#endif
+
SYSCTL_NODE(_net_inet_tcp, OID_AUTO, reass, CTLFLAG_RW, 0,
"TCP Segment Reassembly Queue");
-static int tcp_reass_maxseg = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_reass, OID_AUTO,
maxsegments,
CTLFLAG_RDTUN, tcp_reass_maxseg, 0,
"Global maximum number of TCP Segments in Reassembly Queue");
-int tcp_reass_qsize = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_reass, OID_AUTO,
cursegments,
CTLFLAG_RD, tcp_reass_qsize, 0,
"Global number of TCP Segments currently in Reassembly Queue");
-static int tcp_reass_maxqlen = 48;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_reass, OID_AUTO, maxqlen,
CTLFLAG_RW, tcp_reass_maxqlen, 0,
"Maximum number of TCP Segments per individual Reassembly Queue");
-static int tcp_reass_overflows = 0;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_reass, OID_AUTO,
overflows,
CTLFLAG_RD, tcp_reass_overflows, 0,
"Global number of TCP Segment Reassembly Queue Overflows");
@@ -114,6 +117,11 @@ tcp_reass_init(void)
{
INIT_VNET_INET(curvnet);
+ V_tcp_reass_maxseg = 0;
+ V_tcp_reass_qsize = 0;
+ V_tcp_reass_maxqlen = 48;
+ V_tcp_reass_overflows = 0;
+
V_tcp_reass_maxseg = nmbclusters / 16;
TUNABLE_INT_FETCH("net.inet.tcp.reass.maxsegments",
&V_tcp_reass_maxseg);
Modified: head/sys/netinet/tcp_sack.c
==============================================================================
--- head/sys/netinet/tcp_sack.c Wed Nov 19 08:56:35 2008 (r185087)
+++ head/sys/netinet/tcp_sack.c Wed Nov 19 09:39:34 2008 (r185088)
@@ -124,23 +124,26 @@ __FBSDID("$FreeBSD$");
extern struct uma_zone *sack_hole_zone;
+#ifdef VIMAGE_GLOBALS
+int tcp_do_sack;
+int tcp_sack_maxholes;
+int tcp_sack_globalmaxholes;
+int tcp_sack_globalholes;
+#endif
+
SYSCTL_NODE(_net_inet_tcp, OID_AUTO, sack, CTLFLAG_RW, 0, "TCP SACK");
-int tcp_do_sack = 1;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_sack, OID_AUTO, enable,
CTLFLAG_RW, tcp_do_sack, 0, "Enable/Disable TCP SACK support");
TUNABLE_INT("net.inet.tcp.sack.enable", &tcp_do_sack);
-static int tcp_sack_maxholes = 128;
SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_tcp_sack, OID_AUTO, maxholes,
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
-------------------------------------------------------
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