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* With exception of the if_name() macro, all definitions in net_osdep.hbrooks2006-08-041-2/+0
| | | | | | | | were unused or already in if_var.h so add if_name() to if_var.h and remove net_osdep.h along with all references to it. Longer term we may want to kill off if_name() entierly since all modern BSDs have if_xname variables rendering it unnecessicary.
* Revise network interface cloning to take an optional opaquesam2006-07-091-2/+3
| | | | | | | | | parameter that can specify configuration parameters: o rev cloner api's to add optional parameter block o add SIOCCREATE2 that accepts parameter data o rev vlan support to use new api (maintain old code) Reviewed by: arch@
* add missed calls to bpf_peers_presentsam2006-06-021-1/+1
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* Move the cloned interface list management in to if_clone. For some drivers thethompsa2005-11-081-22/+0
| | | | | | | | | | softc lists and associated mutex are now unused so these have been removed. Calling if_clone_detach() will now destroy all the cloned interfaces for the driver and in most cases is all thats needed to unload. Idea by: brooks Reviewed by: brooks
* Change the reference counting to count the number of cloned interfaces for eachthompsa2005-10-121-14/+5
| | | | | | | | | | | | | | | cloner. This ensures that ifc->ifc_units is not prematurely freed in if_clone_detach() before the clones are destroyed, resulting in memory modified after free. This could be triggered with if_vlan. Assert that all cloners have been destroyed when freeing the memory. Change all simple cloners to destroy their clones with ifc_simple_destroy() on module unload so the reference count is properly updated. This also cleans up the interface destroy routines and allows future optimisation. Discussed with: brooks, pjd, -current Reviewed by: brooks
* Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE andrwatson2005-08-091-1/+2
| | | | | | | | | | | | | | IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
* Fix some long standing bugs in writing to the BPF device attached todwmalone2005-06-261-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | a DLT_NULL interface. In particular: 1) Consistently use type u_int32_t for the header of a DLT_NULL device - it continues to represent the address family as always. 2) In the DLT_NULL case get bpf_movein to store the u_int32_t in a sockaddr rather than in the mbuf, to be consistent with all the DLT types. 3) Consequently fix a bug in bpf_movein/bpfwrite which only permitted packets up to 4 bytes less than the MTU to be written. 4) Fix all DLT_NULL devices to have the code required to allow writing to their bpf devices. 5) Move the code to allow writing to if_lo from if_simloop to looutput, because it only applies to DLT_NULL devices but was being applied to other devices that use if_simloop possibly incorrectly. PR: 82157 Submitted by: Matthew Luckie <mjl@luckie.org.nz> Approved by: re (scottl)
* Stop embedding struct ifnet at the top of driver softcs. Instead thebrooks2005-06-101-16/+22
| | | | | | | | | | | | | | | | | | | | struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
* the rt parameter to ifa_rtrequest callbacks should always be non-null;sam2005-02-241-2/+1
| | | | | | eliminate grauitous ptr checks that follow ptr deref's Noticed by: Coverity Prevent analysis tool
* /* -> /*- for license, minor formatting changesimp2005-01-071-1/+1
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* Do a pass over all modules in the kernel and make them return EOPNOTSUPPphk2004-07-151-0/+2
| | | | | | | | for unknown events. A number of modules return EINVAL in this instance, and I have left those alone for now and instead taught MOD_QUIESCE to accept this as "didn't do anything".
* Use M_ZERO instead of bzero().bms2004-07-061-2/+1
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* Major overhaul of pseudo-interface cloning. Highlights include:brooks2004-06-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Split the code out into if_clone.[ch]. - Locked struct if_clone. [1] - Add a per-cloner match function rather then simply matching names of the form <name><unit> and <name>. - Use the match function to allow creation of <interface>.<tag> vlan interfaces. The old way is preserved unchanged! - Also the match function to allow creation of stf(4) interfaces named stf0, stf, or 6to4. This is the only major user visible change in that "ifconfig stf" creates the interface stf rather then stf0 and does not print "stf0" to stdout. - Allow destroy functions to fail so they can refuse to delete interfaces. Currently, we forbid the deletion of interfaces which were created in the init function, particularly lo0, pflog0, and pfsync0. In the case of lo0 this was a panic implementation so it does not count as a user visiable change. :-) - Since most interfaces do not need the new functionality, an family of wrapper functions, ifc_simple_*(), were created to wrap old style cloner functions. - The IF_CLONE_INITIALIZER macro is replaced with a new incompatible IFC_CLONE_INITIALIZER and ifc_simple consumers use IFC_SIMPLE_DECLARE instead. Submitted by: Maurycy Pawlowski-Wieronski <maurycy at fouk.org> [1] Reviewed by: andre, mlaier Discussed on: net
* add missing #include <sys/module.h>phk2004-05-301-0/+1
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* Staticize <if>_clone_{create,destroy} functions.brooks2004-04-141-4/+4
| | | | Reviewed by: mlaier
* Remove advertising clause from University of California Regent'simp2004-04-071-4/+0
| | | | | | | license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson. Approved by: core, peter, alc, rwatson
* Introduce faith_mtx to protect the if_faith global softc list.rwatson2004-03-091-7/+27
| | | | | | Push if_faith softc destruction logic into faith_destroy() so that it can be called after softc list removal in both the clone destroy and module unload paths.
* o eliminate widespread on-stack mbuf use for bpf by introducingsam2003-12-281-14/+1
| | | | | | | | | | | | | a new bpf_mtap2 routine that does the right thing for an mbuf and a variable-length chunk of data that should be prepended. o while we're sweeping the drivers, use u_int32_t uniformly when when prepending the address family (several places were assuming sizeof(int) was 4) o return M_ASSERTVALID to BPF_MTAP* now that all stack-allocated mbufs have been eliminated; this may better be moved to the bpf routines Reviewed by: arch@ and several others
* Introduce tcp_hostcache and remove the tcp specific metrics fromandre2003-11-201-11/+2
| | | | | | | | | | | | | | | | | | | | | | | the routing table. Move all usage and references in the tcp stack from the routing table metrics to the tcp hostcache. It caches measured parameters of past tcp sessions to provide better initial start values for following connections from or to the same source or destination. Depending on the network parameters to/from the remote host this can lead to significant speedups for new tcp connections after the first one because they inherit and shortcut the learning curve. tcp_hostcache is designed for multiple concurrent access in SMP environments with high contention and is hash indexed by remote ip address. It removes significant locking requirements from the tcp stack with regard to the routing table. Reviewed by: sam (mentor), bms Reviewed by: -net, -current, core@kame.net (IPv6 parts) Approved by: re (scottl)
* Replace the if_name and if_unit members of struct ifnet with new membersbrooks2003-10-311-2/+1
| | | | | | | | | | | | | if_xname, if_dname, and if_dunit. if_xname is the name of the interface and if_dname/unit are the driver name and instance. This change paves the way for interface renaming and enhanced pseudo device creation and configuration symantics. Approved By: re (in principle) Reviewed By: njl, imp Tested On: i386, amd64, sparc64 Obtained From: NetBSD (if_xname)
* Locking for updates to routing table entries. Each rtentry gets a mutexsam2003-10-041-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | that covers updates to the contents. Note this is separate from holding a reference and/or locking the routing table itself. Other/related changes: o rtredirect loses the final parameter by which an rtentry reference may be returned; this was never used and added unwarranted complexity for locking. o minor style cleanups to routing code (e.g. ansi-fy function decls) o remove the logic to bump the refcnt on the parent of cloned routes, we assume the parent will remain as long as the clone; doing this avoids a circularity in locking during delete o convert some timeouts to MPSAFE callouts Notes: 1. rt_mtx in struct rtentry is guarded by #ifdef _KERNEL as user-level applications cannot/do-no know about mutex's. Doing this requires that the mutex be the last element in the structure. A better solution is to introduce an externalized version of struct rtentry but this is a major task because of the intertwining of rtentry and other data structures that are visible to user applications. 2. There are known LOR's that are expected to go away with forthcoming work to eliminate many held references. If not these will be resolved prior to release. 3. ATM changes are untested. Sponsored by: FreeBSD Foundation Obtained from: BSD/OS (partly)
* Introduce an M_ASSERTPKTHDR() macro which performs the very common taskdes2003-04-081-2/+1
| | | | | | | of asserting that an mbuf has a packet header. Use it instead of hand- rolled versions wherever applicable. Submitted by: Hiten Pandya <hiten@unixdaemons.com>
* Update netisr handling; Each SWI now registers its queue, and all queuejlemon2003-03-041-5/+1
| | | | | | | | | | drain routines are done by swi_net, which allows for better queue control at some future point. Packets may also be directly dispatched to a netisr instead of queued, this may be of interest at some installations, but currently defaults to off. Reviewed by: hsu, silby, jayanth, sam Sponsored by: DARPA, NAI Labs
* Back out M_* changes, per decision of the TRB.imp2003-02-191-1/+1
| | | | Approved by: trb
* Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.alfred2003-01-211-1/+1
| | | | Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
* network interface and link layer changes:sam2002-11-151-1/+1
| | | | | | | | | | | | o on input don't strip the Ethernet header from packets o input packet handling is now done with if_input o track changes to ether_ifattach/ether_ifdetach API o track changes to bpf tapping o call ether_ioctl for default handling of ioctl's o use constants from net/ethernet.h where possible Reviewed by: many Approved by: re
* Move all unit number management cloned interfaces into the cloningbrooks2002-05-251-4/+3
| | | | | | | | code. The reverts the API change which made the <if>_clone_destory() functions return an int instead of void bringing us into closer alignment with NetBSD. Reviewed by: net (a long time ago)
* just merged cosmetic changes from KAME to ease sync between KAME and FreeBSD.suz2002-04-191-1/+1
| | | | | | | (based on freebsd4-snap-20020128) Reviewed by: ume MFC after: 1 week
* Remove __P.alfred2002-03-191-8/+8
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* Simplify the interface cloning framework by handling unitmux2002-03-111-49/+5
| | | | | | | | | unit allocation with a bitmap in the generic layer. This allows us to get rid of the duplicated rman code in every clonable interface. Reviewed by: brooks Approved by: phk
* Change the network interface cloning API so the destroy function returnsbrooks2002-03-041-2/+3
| | | | | | | | an int errorcode instead of void in preperation for merging cloning of the loopback device. Submitted by: mux MFC after: 2 weeks
* Did someone turn on -Werror or something?dillon2002-02-261-0/+2
| | | | Fix kernel breakage.
* Staticise private interface lists.msmith2002-01-081-1/+1
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* Initalize ifq_maxlen to prevent a harmless warning message.brooks2001-12-171-0/+1
| | | | | MFC After: 1 day Pointed out by: jacks@sage-american.com, bmah
* Pull post-4.4BSD change to sys/net/route.c from BSD/OS 4.2.ru2001-10-171-3/+3
| | | | | | | | | | | | | | | | | | | | Have sys/net/route.c:rtrequest1(), which takes ``rt_addrinfo *'' as the argument. Pass rt_addrinfo all the way down to rtrequest1 and ifa->ifa_rtrequest. 3rd argument of ifa->ifa_rtrequest is now ``rt_addrinfo *'' instead of ``sockaddr *'' (almost noone is using it anyways). Benefit: the following command now works. Previously we needed two route(8) invocations, "add" then "change". # route add -inet6 default ::1 -ifp gif0 Remove unsafe typecast in rtrequest(), from ``rtentry *'' to ``sockaddr *''. It was introduced by 4.3BSD-Reno and never corrected. Obtained from: BSD/OS, NetBSD MFC after: 1 month PR: kern/28360
* Make faith loadable, unloadable, and clonable.brooks2001-09-251-45/+142
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* unbreak building kernel without option INET6ume2001-07-051-0/+2
| | | | Reported by: markp
* Sync with recent KAME.ume2001-06-111-7/+234
| | | | | | | | | | | | | | | | | | This work was based on kame-20010528-freebsd43-snap.tgz and some critical problem after the snap was out were fixed. There are many many changes since last KAME merge. TODO: - The definitions of SADB_* in sys/net/pfkeyv2.h are still different from RFC2407/IANA assignment because of binary compatibility issue. It should be fixed under 5-CURRENT. - ip6po_m member of struct ip6_pktopts is no longer used. But, it is still there because of binary compatibility issue. It should be removed under 5-CURRENT. Reviewed by: itojun Obtained from: KAME MFC after: 3 weeks
* Pull the rug from under the 'LKM Compatability' macro - PSEUDO_SET().peter2001-02-041-0/+2
| | | | | | | | There are two 3rd party code chunks using this still - the IPv6 stuff and i4b. Give them a private copy as an alternative to changing them too much. XXX sys/kernel.h still has a #include <sys/module.h> in it. I will be taking this out shortly - this affects a number of drivers.
* Remove #if NGIF > 0 and #if NFAITH > 0 as config already checks this.peter2000-01-291-2/+0
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* Remove BROADCAST flag from faith interface,shin2000-01-091-2/+2
| | | | | | | -it not seems to be necessary -to avoid dhcp messages or something like that sent to faith interface The problem reported by: Jim Bloom <bloom@acm.org>
* udp IPv6 support, IPv6/IPv4 tunneling support in kernel,shin1999-12-071-0/+97
packet divert at kernel for IPv6/IPv4 translater daemon This includes queue related patch submitted by jburkhol@home.com. Submitted by: queue related patch from jburkhol@home.com Reviewed by: freebsd-arch, cvs-committers Obtained from: KAME project
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