CVS log for src/usr.bin/netstat/inet6.c

Up to [cvs.NetBSD.org] / src / usr.bin / netstat

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Keyword substitution: kv
Default branch: MAIN

Adjust userland commands for struct inpcb separation

Only kvm users are affected.

Adjust userland commands for struct inpcb integration

Only kvm users are affected.

s/u_quad_t/uint64_t/. No functional change.

Pull up the following, requested by msaitoh in ticket #1762:

	usr.bin/netstat/atalk.c		1.18,1.20-1.21
	usr.bin/netstat/bpf.c		1.16 via patch
	usr.bin/netstat/fast_ipsec.c	1.24 via patch
	usr.bin/netstat/if.c		1.97-1.99,1.101-1.104 via patch
	usr.bin/netstat/inet.c		1.111,1.115-1.116 via patch
	usr.bin/netstat/inet6.c		1.70,1.74-1.75,1.80-1.81 via patch
	usr.bin/netstat/main.c		1.100,1.102-1.103
	usr.bin/netstat/mbuf.c		1.34-1.35
	usr.bin/netstat/mroute.c	1.26-1.27
	usr.bin/netstat/mroute6.c	1.16
	usr.bin/netstat/netstat.h	1.52-1.53
	usr.bin/netstat/pfkey.c		1.4-1.5 via patch
	usr.bin/netstat/pfsync.c	1.4-1.5 via patch
	usr.bin/netstat/route.c		1.87-1.88
	usr.bin/netstat/unix.c		1.36-1.37
	usr.bin/netstat/vtw.c		1.11,1.13

- Add names of a few more ICMPv6 messages.
  Also make the array be explicitly 256 entries long.
- sprintf() -> snprintf(), and adjust a buffer size to avoid any
  potential for overflow.
- Add missing {IP,IP6}_STAT_NOIPSEC to netstat.
- Don't show any of the completely and utterly undocumented VTW info
  if the feature isn't enabled.
- Print oqdrops correctly.
- netstat.1: Add various xrefs present in the body to "See Also".
- Limit maximum owner name to appease gcc.
- KNF. Style fixes.

Pull up the following, requested by msaitoh in ticket #1522:

	usr.bin/netstat/atalk.c		1.18,1.20-1.21
	usr.bin/netstat/bpf.c		1.16 via patch
	usr.bin/netstat/fast_ipsec.c	1.24
	usr.bin/netstat/if.c		1.97-1.99,1.101-1.104 via patch
	usr.bin/netstat/inet.c		1.111,1.115-1.116 via patch
	usr.bin/netstat/inet6.c		1.74-1.75,1.80-1.81 via patch
	usr.bin/netstat/main.c		1.100-1.103
	usr.bin/netstat/mbuf.c		1.35
	usr.bin/netstat/mroute.c	1.26-1.27
	usr.bin/netstat/mroute6.c	1.16
	usr.bin/netstat/netstat.h	1.52-1.53
	usr.bin/netstat/pfkey.c		1.4-1.5 via patch
	usr.bin/netstat/pfsync.c	1.4-1.5 via patch
	usr.bin/netstat/route.c		1.86-1.88
	usr.bin/netstat/unix.c		1.36-1.37
	usr.bin/netstat/vtw.c		1.11,1.13

- sprintf() -> snprintf(), and adjust a buffer size to avoid any
  potential for overflow.
- Fix netstat -rs to print it correctly.
- Add missing {IP,IP6}_STAT_NOIPSEC to netstat.
- Don't show any of the completely and utterly undocumented VTW info
  if the feature isn't enabled.
- Print oqdrops correctly.
- Remove Network ATM soft intr queue reporting, we don't have that
  in the kernel anymore.
- netstat.1: Add various xrefs present in the body to "See Also".
- KNF. Style fixes.

KNF. No functional change.

KNF. No functional change.

netstat(1): convert malloc(x * y) and realloc(x * y) to reallocarr

usr.bin: remove unnecessary lint comment CONSTCOND

Since 2021-01-31, lint no longer warns about 'do ... while (0)'.

No functional change.

netstat: strengthen against kernel changes

netstat uses sysctlbyname to get counter data from the kernel.
sysctlbyname fails with ENOMEM if actual counter data in the kernel is
larger than a passed buffer.  netstat just skips showing counters of a
category if sysctlbyname fails, so if we added new counters of the
category to the kernel, nestat shows nothing for the category.

Fortunately sysctlbyname fills data as much as possible even if a passed
buffer is short.  So we can allow netstat to show the filled data anyway
if sysctlbyname fails with ENOMEM.

Note that this backcompat mechanism works only if new counters are
appended, and doesn't work if new counters are inserted into the middle
or counters are moved.

netstat: support new packet counters

add missing {IP,IP6}_STAT_NOIPSEC to netstat.

sockb is only used locally, so move it into the function

Mostly merge changes from HEAD upto 20200411

Pull up following revision(s) (requested by kamil in ticket #94):

	usr.bin/netstat/netstat_rumpops.c: revision 1.2
	usr.bin/netstat/netstat_hostops.c: revision 1.2
	usr.bin/netstat/inet6.c: revision 1.73
	usr.bin/netstat/bpf.c: revision 1.14
	usr.bin/netstat/Makefile: revision 1.46
	usr.bin/netstat/prog_ops.h: revision 1.3
	usr.bin/netstat/pfsync.c: revision 1.2
	usr.bin/netstat/pfkey.c: revision 1.2
	usr.bin/netstat/fast_ipsec.c: revision 1.23
	usr.bin/netstat/atalk.c: revision 1.17
	usr.bin/netstat/inet.c: revision 1.110

netstat: Add indirection of symbols to remove clash with sanitizers

Add indirection and symbol renaming under MKSANITIZER for the linked in
version of sysctlbyname, sysctlgetmibinfo and sysctlnametomib.

netstat: Add indirection of symbols to remove clash with sanitizers

Add indirection and symbol renaming under MKSANITIZER for the linked in
version of sysctlbyname, sysctlgetmibinfo and sysctlnametomib.

Sync with HEAD

Show the number of packets dropped by pfil

Sync with HEAD

Remove now unused tcpip.h includes. Some were already unused before.

Add names of a few more ICMPv6 messages, from RFC6275 (Mobile IPv6)
and RFC4286 (Multicast Router Discovery.) and as shown in the IANA
parameters page available at:
  https://www.ietf.org/assignments/icmpv6-parameters/icmpv6-parameters.txt

Also make the array be explicitly 256 entries long, one for each possible
code, which will detect attempts to insert names without deleting the
place holder (and mean a good solid NULL de-ref if too many place holders
are deleted, rather than just random results.)

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

Print previously missing fields from a TCP6 PCB.

Pull up following revision(s) (requested by christos in ticket #1249):
	usr.bin/netstat/inet.c: revision 1.106
	usr.bin/netstat/inet6.c: revision 1.68
Allocate the right size for pcb blocks.

Pull up following revision(s) (requested by christos in ticket #503):
	usr.bin/netstat/inet.c: revision 1.106
	usr.bin/netstat/inet6.c: revision 1.68
Allocate the right size for pcb blocks.

Allocate the right size for pcb blocks.
XXX: pullup-7!

print the timer flags.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

Update for new pcb tailq's.
While here fix ipv6 pcb printing by making tcp6_dump with tcp.
XXX: Merge the inet and the inet6 code. It is silly to need to specify
-p tcp6 to print a tcp6 pcb, we already know what it is.

use correct function and symbolic constants

use new scopeid functions

- avoid pointer gymnastics
- remove unused variables

Pull up following revision(s) (requested by christos in ticket #1868):
	usr.bin/netstat/main.c: revision 1.86
	usr.bin/netstat/netstat.h: revision 1.47
	usr.bin/netstat/inet.c: revision 1.102
	usr.bin/netstat/inet.c: revision 1.103
	usr.bin/netstat/inet6.c: revision 1.61
	usr.bin/netstat/inet6.c: revision 1.62
Don't use -P as a kmem printer, verify that the address points to a pcb first!
Not all pointers are 64bit - use uintptr_t instead of uint64_t.

Pull up following revision(s) (requested by christos in ticket #1868):
	usr.bin/netstat/main.c: revision 1.86
	usr.bin/netstat/netstat.h: revision 1.47
	usr.bin/netstat/inet.c: revision 1.102
	usr.bin/netstat/inet.c: revision 1.103
	usr.bin/netstat/inet6.c: revision 1.61
	usr.bin/netstat/inet6.c: revision 1.62
Don't use -P as a kmem printer, verify that the address points to a pcb first!
Not all pointers are 64bit - use uintptr_t instead of uint64_t.

Pull up following revision(s) (requested by christos in ticket #1868):
	usr.bin/netstat/main.c: revision 1.86
	usr.bin/netstat/netstat.h: revision 1.47
	usr.bin/netstat/inet.c: revision 1.102
	usr.bin/netstat/inet.c: revision 1.103
	usr.bin/netstat/inet6.c: revision 1.61
	usr.bin/netstat/inet6.c: revision 1.62
Don't use -P as a kmem printer, verify that the address points to a pcb first!
Not all pointers are 64bit - use uintptr_t instead of uint64_t.

Pull up following revision(s) (requested by christos in ticket #912):
	usr.bin/netstat/main.c: revision 1.86
	usr.bin/netstat/netstat.h: revision 1.47
	usr.bin/netstat/inet.c: revision 1.102
	usr.bin/netstat/inet.c: revision 1.103
	usr.bin/netstat/inet6.c: revision 1.61
	usr.bin/netstat/inet6.c: revision 1.62
Don't use -P as a kmem printer, verify that the address points to a pcb first!
Not all pointers are 64bit - use uintptr_t instead of uint64_t.

Pull up following revision(s) (requested by christos in ticket #912):
	usr.bin/netstat/main.c: revision 1.86
	usr.bin/netstat/netstat.h: revision 1.47
	usr.bin/netstat/inet.c: revision 1.102
	usr.bin/netstat/inet.c: revision 1.103
	usr.bin/netstat/inet6.c: revision 1.61
	usr.bin/netstat/inet6.c: revision 1.62
Don't use -P as a kmem printer, verify that the address points to a pcb first!
Not all pointers are 64bit - use uintptr_t instead of uint64_t.

Pull up following revision(s) (requested by christos in ticket #912):
	usr.bin/netstat/main.c: revision 1.86
	usr.bin/netstat/netstat.h: revision 1.47
	usr.bin/netstat/inet.c: revision 1.102
	usr.bin/netstat/inet.c: revision 1.103
	usr.bin/netstat/inet6.c: revision 1.61
	usr.bin/netstat/inet6.c: revision 1.62
Don't use -P as a kmem printer, verify that the address points to a pcb first!
Not all pointers are 64bit - use uintptr_t instead of uint64_t.

resync from head

Not all pointers are 64bit - use uintptr_t instead of uint64_t.

Don't use -P as a kmem printer, verify that the address points to a pcb first!

Retire OSI network stack. OK core@

RA flood mitigation via a limit on accepted routes:
- introduce a limit for the routes accepted via IPv6 Router Advertisement:
  a common 2 interface client will have 6, the default limit is 100 and
  can be adjusted via sysctl
- report the current number of routes installed via RA via sysctl
- count discarded route additions. Note that one RA message is two routes.
  This is at present only across all interfaces even though per-interface
  would be more useful, since the per-interface structure complies to RFC2466
- bump kernel version due to the previous change
- adjust netstat to use the new value (with netstat -p icmp6)

Suppress whitespace at EOL to fix lib/librumphijack/t_tcpip.

use getmicrouptime(9) rather than microtime(9) for TIME_WAIT duration
calculation, because this doesn't get confused by system time changes,
and uses less CPU cycles
reviewed by dyoung

Don't use type qualifier 'register'.

Do not display expired or reclaimed vestigial TIME_WAIT entries.

Reduces the resources demanded by TCP sessions in TIME_WAIT-state using
methods called Vestigial Time-Wait (VTW) and Maximum Segment Lifetime
Truncation (MSLT).

MSLT and VTW were contributed by Coyote Point Systems, Inc.

Even after a TCP session enters the TIME_WAIT state, its corresponding
socket and protocol control blocks (PCBs) stick around until the TCP
Maximum Segment Lifetime (MSL) expires.  On a host whose workload
necessarily creates and closes down many TCP sockets, the sockets & PCBs
for TCP sessions in TIME_WAIT state amount to many megabytes of dead
weight in RAM.

Maximum Segment Lifetimes Truncation (MSLT) assigns each TCP session to
a class based on the nearness of the peer.  Corresponding to each class
is an MSL, and a session uses the MSL of its class.  The classes are
loopback (local host equals remote host), local (local host and remote
host are on the same link/subnet), and remote (local host and remote
host communicate via one or more gateways).  Classes corresponding to
nearer peers have lower MSLs by default: 2 seconds for loopback, 10
seconds for local, 60 seconds for remote.  Loopback and local sessions
expire more quickly when MSLT is used.

Vestigial Time-Wait (VTW) replaces a TIME_WAIT session's PCB/socket
dead weight with a compact representation of the session, called a
"vestigial PCB".  VTW data structures are designed to be very fast and
memory-efficient: for fast insertion and lookup of vestigial PCBs,
the PCBs are stored in a hash table that is designed to minimize the
number of cacheline visits per lookup/insertion.  The memory both
for vestigial PCBs and for elements of the PCB hashtable come from
fixed-size pools, and linked data structures exploit this to conserve
memory by representing references with a narrow index/offset from the
start of a pool instead of a pointer.  When space for new vestigial PCBs
runs out, VTW makes room by discarding old vestigial PCBs, oldest first.
VTW cooperates with MSLT.

It may help to think of VTW as a "FIN cache" by analogy to the SYN
cache.

A 2.8-GHz Pentium 4 running a test workload that creates TIME_WAIT
sessions as fast as it can is approximately 17% idle when VTW is active
versus 0% idle when VTW is inactive.  It has 103 megabytes more free RAM
when VTW is active (approximately 64k vestigial PCBs are created) than
when it is inactive.

Add netstat rump client.  For now, it always sets -X, i.e. will
use only sysctl and no kvm (implementing /dev/mem for a rump kernel
would probably not be hard, but still a non-zero effort).

Note: since there is absolutely no network activity in a fresh rump
kernel, rump.netstat usually displays exactly nothing when invoked
without parameters.  Arguments like -r, -bi, -p icmp etc. produce
more stuff.

Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html

Fix many WARNS=4 issues (-Wshadow -Wcast-qual -Wsign-compare).
Fix probable bug with numeric printing of anon ports when using sysctl.

Pull up following revision(s) (requested by dholland in ticket #1292):
	usr.bin/netstat/inet.c: revision 1.89
	usr.bin/netstat/inet6.c: revision 1.51
	usr.bin/netstat/iso.c: revision 1.31
Make netstat handle -a properly; that is, don't show unconnected
listener sockets unless -a was given. (It was checking the local
address instead of the remote address for being INADDR_ANY or
equivalent.)
PR 38093 from Dieter Roelants; I adjusted the patch a little.

Pull up following revision(s) (requested by dholland in ticket #608):
	usr.bin/netstat/inet.c: revision 1.89
	usr.bin/netstat/inet6.c: revision 1.51
	usr.bin/netstat/iso.c: revision 1.31
Make netstat handle -a properly; that is, don't show unconnected
listener sockets unless -a was given. (It was checking the local
address instead of the remote address for being INADDR_ANY or
equivalent.)
PR 38093 from Dieter Roelants; I adjusted the patch a little.
This needs pullups for both -4 and -5.

Make netstat handle -a properly; that is, don't show unconnected
listener sockets unless -a was given. (It was checking the local
address instead of the remote address for being INADDR_ANY or
equivalent.)

PR 38093 from Dieter Roelants; I adjusted the patch a little.

This needs pullups for both -4 and -5.

sync with head.

Note which things are not available by KVM, and print a nice message
stating so if someone specifically asks for it.

Make pim6 stats per-cpu.

Make raw6 stats per-cpu.

Use ANSI function decls throughout.

Make udp6 stats per-cpu.

Change IPv6 stats from a structure to an array of uint64_t's.

Note: This is ABI-compatible with the old ip6stat structure; old netstat
binaries will continue to work properly.

Change ICMP6 stats from a structure to an array of uint64_t's.

Note: This is ABI-compatible with the old icmp6stat structure; old netstat
binaries will continue to work properly.

sync with HEAD

Fix more -combine fallout.  (mismatched definitions)

Add new IPv6 Fast Forward statistics

Remove duplicate #includes
From Slava Semushin <slava.semushin@gmail.com>, via private mail

PR/31347: Geoff C. Wing: netstat err message is ambiguous about cause
Applied patch, thanks!

Sync with head.

Don't print an error if kernel doesn't have INET6 support.
By Jukka Salmi on current-users.

Make netstat use sysctl when dumping routing tables/stats.
Heavily based on similar code from Claudio Jeker (at OpenBSD).

While here, fix inet/inet6 sysctl stuff commited previously to
actually work, and some other nits to make netstat more sysctl
friendly.

One step closer to losing setgid kmem on this one...

check if malloc(3) failed

ok joerg@

Use net.inet6.{ip6,udp6,pim6,raw6}.stats for live systems.

Reviewed by Elad Efrat.

Use net.inet6.tcp6.pcblist, net.inet6.tcp6.stats (not implemented yet) and
net.inet6.icmp6.stats if we are gathering information from a live system.

Reviewed by Elad Efrat.

Added #include <kvm.h> since netstat.h, which is included too, needs it.

print the proper pointer for the pcb address.  otherwise, all the udp6
pcb addresses are the same as unrelated udp pcb addresses.

NI_WITHSCOPEID was not picked up by IETF standardization process.

handle KAME scopeid hack for multicast addr.  Matthias Drochner

fix PR bin/22739 (netstat -nlv -f inet6 weird)

synchronize w/ inpcb/in6pcb change

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.

use proper #ifdef to determine behavior (__KAME__)

it's not necessary to limit the service name artificially to 8 characters
in inet*print() - only first 'width' characters of the 'host.service'
string would be printed anyway, so allow full service name if string would fit

fix typo, from sm@resistor.net in misc/18816.

use strchr, not index

print rip6stat.  sync with kame

Make the PCB address printing look like the IPv4 version.

typo

add `-s' that prints port numbers symbolically but addresses numerically

pedant changes for strcpy/sprintf.

add sctp (maybe we should add it to /etc/protocols instead?)

during ip6/icmp6 inbound packet processing, do not call log() nor printf() in
normal operation (/var can get filled up by flodding bogus packets).
sysctl net.inet6.icmp6.nd6_debug will turn on diagnostic messages.
(#define ND6_DEBUG will turn it on by default)

improve stats in ND6 code.

lots of synchronziation with kame (including comments and cometic ones).

try to lookup /etc/protocols for histogram

typo in -s message

count path MTU changes.

Pullup usr.bin string format fixes [is].
See "cvs log" for explicit revision numbers per file, from sommerfeld.

More format string cleanup by sommerfeld.

Fix netstat -ss handling for a bunch of ISO cases, so that
zero values are not printed.
"tp:" still needs some work, though.

pullup 1.10 -> 1.11 (approved by releng-1-5)
do not print m_pulldown statistics.  it is too experimental and
belongs to kame tree only (not for *bsd tree).

do not print m_pulldown statistics.  it is too experimental and
belongs to kame tree only (not for *bsd tree).

more stats.  from kame

Sync w/ netbsd-1-5-base.

print # of packets filtered by icmp6 rate limitation

s/icmp/icmp6/ in message

revise IPsec, pfkey, IPv6 multicast and IPv6 statistics.  (sync with kame)

Pull up to last week's -current.

Make this compile on the Alpha again.

per-interface statistics.
bring in and enable KAME scopeid hack.
lots of cleanups.
(sync with latest KAME)

Change printf formats for 64bit counters.

do not include netinet/in6_systm.h, which has been empty for a while.

add NetBSD RCS ID.

make netstat IPv6-ready.