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* MFC r287649:markj2016-01-071-0/+2
| | | | | Use a common subroutine to fetch and zero protocol stats instead of duplicating roughly similar code for each protocol.
* MFC r266418, r266448hiren2015-04-061-0/+1
| | | | | | | | | Add the flowtype to the inpcb. Add -R to netstat to dump RSS/flow information. Reviewed by: delphij Relnotes: yes (for r266448) Sponsored by: Limelight Networks
* Merge r262763, r262767, r262771, r262806 from head:glebius2014-03-211-0/+1
| | | | | | | | | | - Remove rt_metrics_lite and simply put its members into rtentry. - Use counter(9) for rt_pksent (former rt_rmx.rmx_pksent). This removes another cache trashing ++ from packet forwarding path. - Create zini/fini methods for the rtentry UMA zone. Via initialize mutex and counter in them. - Fix reporting of rmx_pksent to routing socket. - Fix netstat(1) to report "Use" both in kvm(3) and sysctl(3) mode.
* Merge r259562,r259566,r259638,r259645,r260124 by melifaro:glebius2014-03-191-8/+9
| | | | | Switch netstat -rn to use standard API for retrieving list of routes instead of peeking inside in-kernel radix via kget.
* Merge r261582, r261601, r261610, r261613, r261627, r261640, r261641, r261823,glebius2014-03-041-0/+1
| | | | | | | | | | r261825, r261859, r261875, r261883, r261911, r262027, r262028, r262029, r262030, r262162 from head. Large flowtable revamp. See commit messages for merged revisions for details. Sponsored by: Netflix
* Merged /head:r256510,256512,257376,257469,260052:glebius2014-01-271-2/+2
| | | | Make 'netstat -i' use getifaddrs(3) instead of kvm(3).
* Add -F fibnum option to specify an FIB number for -r flag.hrs2013-07-121-1/+1
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* Use new macros to implement ipstat and tcpstat using PCPU counters.ae2013-07-091-1/+1
| | | | Change interface of kread_counters() similar ot kread() in the netstat(1).
* Use kvm_counter_u64_fetch() to fix obtaining ipstat and tcpstat fromglebius2013-04-101-0/+1
| | | | | | kernel core files. Sponsored by: Nginx, Inc.
* - Hide the internal scope address representation of the KAME IPv6ume2011-01-201-0/+1
| | | | | | | | stack from the output of `netstat -ani'. - The node-local multicast address in the output of `netstat -rn' should be handled as well. Spotted by: Bernd Walter <ticso__at__cicely7.cicely.de>
* Remove the advertising clause from UCB copyrighted files in usr.bin. Thisjoel2010-12-111-4/+0
| | | | | | | | | is in accordance with the information provided at ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change Also add $FreeBSD$ to a few files to keep svn happy. Discussed with: imp, rwatson
* Add new, per connection, statistics for TCP, including:gnn2010-11-171-0/+1
| | | | | | | | | | Retransmitted Packets Zero Window Advertisements Out of Order Receives These statistics are available via the -T argument to netstat(1). MFC after: 2 weeks
* Teach netstat -Q to work with -N and -M by adding libkvm versions of datarwatson2010-03-011-1/+1
| | | | | | | | | query routines. This code is necessarily more fragile in the presence of kernel changes than querying the kernel via sysctl (the default), but useful when investigating crashes or live kernel state via firewire. MFC after: 1 week Sponsored by: Juniper Networks
* Teach netstat(1) to print out netisr statistics when given the -Q argument.rwatson2010-02-221-0/+5
| | | | | | | | Currently supports only reporting on live systems via sysctl, kmem support needs to be edded. MFC after: 1 week Sponsored by: Juniper Networks
* Add a new option, -q howmany, which when used in conjuction with -w,delphij2010-01-111-0/+1
| | | | | | | | exits netstat after _howmany_ outputs. Requested by: thomasa Reviewed by: freebsd-net (bms, old version in early 2007) MFC after: 1 month
* Unbreak user space after if_timer/if_watchdog removal in r199975.bz2009-12-011-1/+0
| | | | Tested by: glebius
* netstat(1) support for UNIX SOCK_SEQPACKET sockets -- changes were requiredrwatson2009-10-051-1/+1
| | | | | | | only for the kvm case, as we supported SOCK_SEQPACKET via sysctl already. Sponsored by: Google MFC after: 3 months
* Add ARP statistics to the kernel and netstat.gnn2009-09-031-0/+1
| | | | | | | | | | | | | | | | | | New counters now exist for: requests sent replies sent requests received replies received packets received total packets dropped due to no ARP entry entrys timed out Duplicate IPs seen The new statistics are seen in the netstat command when it is given the -s command line switch. MFC after: 2 weeks In collaboration with: bz
* Introduce a number of changes to the MROUTING code.bms2009-03-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is purely a forwarding plane cleanup; no control plane code is involved. Summary: * Split IPv4 and IPv6 MROUTING support. The static compile-time kernel option remains the same, however, the modules may now be built for IPv4 and IPv6 separately as ip_mroute_mod and ip6_mroute_mod. * Clean up the IPv4 multicast forwarding code to use BSD queue and hash table constructs. Don't build our own timer abstractions when ratecheck() and timevalclear() etc will do. * Expose the multicast forwarding cache (MFC) and virtual interface table (VIF) as sysctls, to reduce netstat's dependence on libkvm for this information for running kernels. * bandwidth meters however still require libkvm. * Make the MFC hash table size a boot/load-time tunable ULONG, net.inet.ip.mfchashsize (defaults to 256). * Remove unused members from struct vif and struct mfc. * Kill RSVP support, as no current RSVP implementation uses it. These stubs could be moved to raw_ip.c. * Don't share locks or initialization between IPv4 and IPv6. * Don't use a static struct route_in6 in ip6_mroute.c. The v6 code is still using a cached struct route_in6, this is moved to mif6 for the time being. * More cleanup remains to be merged from ip_mroute.c to ip6_mroute.c. v4 path tested using ports/net/mcast-tools. v6 changes are mostly mechanical locking and *have not* been tested. As these changes partially break some kernel ABIs, they will not be MFCed. There is a lot more work to be done here. Reviewed by: Pavlin Radoslavov
* Now that ifmcstat(8) does not suck, retire host-mode netstat -g.bms2009-02-151-1/+0
| | | | This change will not be back-ported.
* add new build knobs and jigger some existing controls to improvesam2008-09-211-0/+2
| | | | | | | | control over the result of buildworld and installworld; this especially helps packaging systems such as nanobsd Reviewed by: various (posted to arch) MFC after: 1 month
* Minimize changes CURRENT<->releng7.obrien2008-09-011-1/+1
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* Update the kernel to count the number of mbufs and clustersgnn2008-05-151-0/+1
| | | | | | | | | | | | (all types) used per socket buffer. Add support to netstat to print out all of the socket buffer statistics. Update the netstat manual page to describe the new -x flag which gives the extended output. Reviewed by: rwatson, julian
* Fix netname() [1] and routename() on big-endian LP64 archs.marius2008-02-071-2/+2
| | | | | Submitted by: Yuri Pankov [1] MFC after: 3 days
* style(9)obrien2008-01-021-6/+6
| | | | | | | + kread is not a boolean, so check it as such + fix $FreeBSD$ Ids + denote copyrights with /*- + misc whitespace changes.
* Restore netstat -M functionality for most statistics on core dumps. Injhb2007-07-161-38/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | general, when support was added to netstat for fetching data using sysctl, no provision was left for fetching equivalent data from a core dump, and in fact, netstat would _always_ fetch data from the live kernel using sysctl even when -M was specified resulting in the user believing they were getting data from coredumps when they actually weren't. Some specific changes: - Add a global 'live' variable that is true if netstat is running against the live kernel and false if -M has been specified. - Stop abusing the sysctl flag in the protocol tables to hold the protocol number. Instead, the protocol is now its own field in the tables, and it is passed as a separate parameter to the PCB and stat routines rather than overloading the KVM offset parameter. - Don't run PCB or stats functions who don't have a namelist offset if we are being run against a crash dump (!live). - For the inet and unix PCB routines, we generate the same buffer from KVM that the sysctl usually generates complete with the header and trailer. - Don't run bpf stats for !live (before it would just silently always run live). - kread() no longer trashes memory when opening the buffer if there is an error on open and the passed in buffer is smaller than _POSIX2_LINE_MAX. - The multicast routing code doesn't fallback to kvm on live kernels if the sysctl fails. Keeping this made the code rather hairy, and netstat is already tied to the kernel ABI anyway (even when using sysctl's since things like xinpcb contain an inpcb) so any kernels this is run against that have the multicast routing stuff should have the sysctls. - Don't try to dig around in the kernel linker in the netgraph PCB routine for core dumps. Other notes: - sctp's PCB routine only works on live kernels, it looked rather complicated to generate all the same stuff via KVM. Someone can always add it later if desired though. - Fix the ipsec removal bug where N_xxx for IPSEC stats weren't renumbered. - Use sysctlbyname() everywhere rather than hardcoded mib values. MFC after: 1 week Approved by: re (rwatson)
* Commit IPv6 support for FAST_IPSEC to the tree.gnn2007-07-011-3/+0
| | | | | | | | This commit includes all remaining changes for the time being including user space updates. Submitted by: bz Approved by: re
* Adds support for SCTP.rrs2007-06-091-0/+4
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* Achieve WARNS=2 by using uintmax_t to pass around 64-bit quantities,yar2006-07-281-3/+3
| | | | | | | including to printf(). Using uintmax_t is also robust to further extensions in both the C language and the bitwidth of kernel counters. Tested on: i386 amd64 ia64
* Add support for printing IPSEC protocol stats if the kernel was compiledkbyanc2005-12-281-0/+6
| | | | | | | | | | | | | with FAST_IPSEC rather than the KAME IPSEC stack. Note that the output of "netstat -s -p ipsec" differs depending on which stack is compiled into the kernel since they each keep different stats. This delta also adds the "esp", "ah", and "ipcomp" protocol stats, which are also available when the kernel is compiled with the FAST_IPSEC stack (e.g. "netstat -s -p esp"). Submitted by: Matt Titus <titus at nttmcl dot com> MFC after: 3 days
* Modify netstat -mb to use libmemstat when accessing a core dump or liverwatson2005-11-131-2/+1
| | | | | | | | | | | | | | | | kernel memory and not using sysctl. Previously, libmemstat was used only for the live kernel via sysctl paths. This results in netstat output becoming both more consistent between core dumps and the live kernel, and also more information in the core dump case than previously (i.e., mbuf cache information). Statistics relating to sfbufs still rely on a kvm descriptor as they are not currently exposed via libmemstat. netstat -m operating on a core is still unable to print certain sfbuf stats available on the live kernel. MFC after: 1 week
* Remove bridge(4) from the tree. if_bridge(4) is a full functionalmlaier2005-09-271-2/+0
| | | | | | | | replacement and has additional features which make it superior. Discussed on: -arch Reviewed by: thompsa X-MFC-after: never (RELENG_6 as transition period)
* Merge bpfstat's functionality into the netstat(1) utility. This addscsjp2005-09-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | a -B option which causes bpf peers to be printed. This option can be used in conjunction with -I if information about specific interfaces is desired. This is similar to what NetBSD added to their version of netstat. $ netstat -B Pid Netif Flags Recv Drop Match Sblen Hblen Command 1137 lo0 p--s-- 0 0 0 0 0 tcpdump 205 sis0 -ifs-l 37331 0 1 0 0 dhclient $ $ netstat -I lo0 -B Pid Netif Flags Recv Drop Match Sblen Hblen Command 1174 lo0 p--s-- 0 0 0 0 0 tcpdump $ -Add bpf.c which stores all the code for retrieving and parsing bpf related statistics. -Modify main.c to add support for the -B option and hook it into the program logic. -Add bpf.c to the build. -Document this new functionality in the man page and bump the revision date. -Add prototype for bpf_stats function.
* Add a new switch -h for interface stats mode, which prints all interfaceglebius2005-08-181-0/+1
| | | | | | | statistics in human readable form. In collaboration with: vsevolod Reviewed by: cperciva
* Print newly exported pfsync statistics with netstat(8).mlaier2005-07-141-0/+1
| | | | | Requested by: glebius MFC after: 1 week
* Add CARP (Common Address Redundancy Protocol), which allows multipleglebius2005-02-221-0/+1
| | | | | | | | | | | | | hosts to share an IP address, providing high availability and load balancing. Original work on CARP done by Michael Shalayeff, with many additions by Marco Pfatschbacher and Ryan McBride. FreeBSD port done solely by Max Laier. Patch by: mlaier Obtained from: OpenBSD (mickey, mcbride)
* Bring in mbuma to replace mballoc.bmilekic2004-05-311-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mbuma is an Mbuf & Cluster allocator built on top of a number of extensions to the UMA framework, all included herein. Extensions to UMA worth noting: - Better layering between slab <-> zone caches; introduce Keg structure which splits off slab cache away from the zone structure and allows multiple zones to be stacked on top of a single Keg (single type of slab cache); perhaps we should look into defining a subset API on top of the Keg for special use by malloc(9), for example. - UMA_ZONE_REFCNT zones can now be added, and reference counters automagically allocated for them within the end of the associated slab structures. uma_find_refcnt() does a kextract to fetch the slab struct reference from the underlying page, and lookup the corresponding refcnt. mbuma things worth noting: - integrates mbuf & cluster allocations with extended UMA and provides caches for commonly-allocated items; defines several zones (two primary, one secondary) and two kegs. - change up certain code paths that always used to do: m_get() + m_clget() to instead just use m_getcl() and try to take advantage of the newly defined secondary Packet zone. - netstat(1) and systat(1) quickly hacked up to do basic stat reporting but additional stats work needs to be done once some other details within UMA have been taken care of and it becomes clearer to how stats will work within the modified framework. From the user perspective, one implication is that the NMBCLUSTERS compile-time option is no longer used. The maximum number of clusters is still capped off according to maxusers, but it can be made unlimited by setting the kern.ipc.nmbclusters boot-time tunable to zero. Work should be done to write an appropriate sysctl handler allowing dynamic tuning of kern.ipc.nmbclusters at runtime. Additional things worth noting/known issues (READ): - One report of 'ips' (ServeRAID) driver acting really slow in conjunction with mbuma. Need more data. Latest report is that ips is equally sucking with and without mbuma. - Giant leak in NFS code sometimes occurs, can't reproduce but currently analyzing; brueffer is able to reproduce but THIS IS NOT an mbuma-specific problem and currently occurs even WITHOUT mbuma. - Issues in network locking: there is at least one code path in the rip code where one or more locks are acquired and we end up in m_prepend() with M_WAITOK, which causes WITNESS to whine from within UMA. Current temporary solution: force all UMA allocations to be M_NOWAIT from within UMA for now to avoid deadlocks unless WITNESS is defined and we can determine with certainty that we're not holding any locks when we're M_WAITOK. - I've seen at least one weird socketbuffer empty-but- mbuf-still-attached panic. I don't believe this to be related to mbuma but please keep your eyes open, turn on debugging, and capture crash dumps. This change removes more code than it adds. A paper is available detailing the change and considering various performance issues, it was presented at BSDCan2004: http://www.unixdaemons.com/~bmilekic/netbuf_bmilekic.pdf Please read the paper for Future Work and implementation details, as well as credits. Testing and Debugging: rwatson, brueffer, Ketrien I. Saihr-Kesenchedra, ... Reviewed by: Lots of people (for different parts)
* Teach netstat(1) how to print the multicast group memberships presentbms2004-03-251-1/+1
| | | | | | within the running system. Sponsored by: Ralf the Wonder Llama
* Fixed missing declaration of pluralies(). This showed up as strangebde2003-12-291-0/+1
| | | | | | | | | printf format warnings for inet6.c (pluralies() was implicit int, but the context requires a "char *"). Added WARNS?=2 to the Makefile so that such errors don't come back. Added NO_WERROR?= to the Makefile because I haven't checked that setting WARNS doesn't uncover more bugs except on i386's.
* Fixed style bugs created in rev.1.27 by removing "__P(" and its closing ")"bde2003-12-291-75/+75
| | | | without removing the space before it.
* Restore old netstat -m output.alfred2003-12-231-0/+1
| | | | A new flag '-c' can be used to ask for the cache stats.
* 1. Add support for printing PIM-related statistics withhsu2003-08-071-0/+1
| | | | | | | | | netstat -s -p pim 2. Print information about the bandwidth meters installed in the kernel with netstat -g Submitted by: Pavlin Radoslavov <pavlin@icir.org>
* o Allow "buckets" in mb_alloc to be differently sized (according tobmilekic2003-02-201-1/+1
| | | | | | | | | | | | | | | | compile-time constants). That is, a "bucket" now is not necessarily a page-worth of mbufs or clusters, but it is MBUF_BUCK_SZ, CLUS_BUCK_SZ worth of mbufs, clusters. o Rename {mbuf,clust}_limit to {mbuf,clust}_hiwm and introduce {mbuf,clust}_lowm, which currently has no effect but will be used to set the low watermarks. o Fix netstat so that it can deal with the differently-sized buckets and teach it about the low watermarks too. o Make sure the per-cpu stats for an absent CPU has mb_active set to 0, explicitly. o Get rid of the allocate refcounts from mbuf map mess. Instead, just malloc() the refcounts in one shot from mbuf_init() o Clean up / update comments in subr_mbuf.c
* Warns cleanups for netstat:dwmalone2002-09-051-33/+34
| | | | | | | | | | | 1) Include arpa/inet.h for ntohs. 2) Constness fixes. 3) Fix shadowing except for "sin" which shouldn't be in scope. 4) Remove register keyword. 5) Add missing initialsers to user defined structs. 5) Make prototype of netname6 globally visable. 6) Use right macros for printing syncache stats (even though entrie isn't a word).
* Deprecate the -l option in favour of more natural -W.ru2001-09-071-1/+0
| | | | | | | | The compatibility glue is still provided. (This change is not yet reflected in the manpage, nor in usage(). This will be fixed at a later time today, with the general manpage cleanup commit.)
* Make `rttrash' variable (#routes not in table but not freed) visibleru2001-06-291-1/+1
| | | | through ``netstat -rs''.
* Add netstat(1) knob to reset net.inet.{ip|icmp|tcp|udp|igmp}.stats.ru2001-06-231-0/+1
| | | | | | For example, ``netstat -s -p ip -z'' will show and reset IP stats. PR: bin/17338
* Introduce numerous SMP friendly changes to the mbuf allocator. Namely,bmilekic2001-06-221-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | introduce a modified allocation mechanism for mbufs and mbuf clusters; one which can scale under SMP and which offers the possibility of resource reclamation to be implemented in the future. Notable advantages: o Reduce contention for SMP by offering per-CPU pools and locks. o Better use of data cache due to per-CPU pools. o Much less code cache pollution due to excessively large allocation macros. o Framework for `grouping' objects from same page together so as to be able to possibly free wired-down pages back to the system if they are no longer needed by the network stacks. Additional things changed with this addition: - Moved some mbuf specific declarations and initializations from sys/conf/param.c into mbuf-specific code where they belong. - m_getclr() has been renamed to m_get_clrd() because the old name is really confusing. m_getclr() HAS been preserved though and is defined to the new name. No tree sweep has been done "to change the interface," as the old name will continue to be supported and is not depracated. The change was merely done because m_getclr() sounds too much like "m_get a cluster." - TEMPORARILY disabled mbtypes statistics displaying in netstat(1) and systat(1) (see TODO below). - Fixed systat(1) to display number of "free mbufs" based on new per-CPU stat structures. - Fixed netstat(1) to display new per-CPU stats based on sysctl-exported per-CPU stat structures. All infos are fetched via sysctl. TODO (in order of priority): - Re-enable mbtypes statistics in both netstat(1) and systat(1) after introducing an SMP friendly way to collect the mbtypes stats under the already introduced per-CPU locks (i.e. hopefully don't use atomic() - it seems too costly for a mere stat update, especially when other locks are already present). - Optionally have systat(1) display not only "total free mbufs" but also "total free mbufs per CPU pool." - Fix minor length-fetching issues in netstat(1) related to recently re-enabled option to read mbuf stats from a core file. - Move reference counters at least for mbuf clusters into an unused portion of the cluster itself, to save space and need to allocate a counter. - Look into introducing resource freeing possibly from a kproc. Reviewed by (in parts): jlemon, jake, silby, terry Tested by: jlemon (Intel & Alpha), mjacob (Intel & Alpha) Preliminary performance measurements: jlemon (and me, obviously) URL: http://people.freebsd.org/~bmilekic/mb_alloc/
* remove warningsassar2001-06-151-28/+28
| | | | | remove superfluous declarations make things more consistent
* remove K&R supportassar2001-06-151-63/+63
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