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* Fix the experimental NFS client so that it does not boguslyRick Macklem2011-04-251-1867/+0
| | | | | | | | | | | | | | | | | set the f_flags field of "struct statfs". This had the interesting effect of making the NFSv4 mounts "disappear" after r221014, since NFSMNT_NFSV4 and MNT_IGNORE became the same bit. Move the files used for a diskless NFS root from sys/nfsclient to sys/nfs in preparation for them to be used by both NFS clients. Also, move the declaration of the three global data structures from sys/nfsclient/nfs_vfsops.c to sys/nfs/nfs_diskless.c so that they are defined when either client uses them. Reviewed by: jhb MFC after: 2 weeks Notes: svn path=/head/; revision=221032
* Mfp4 CH=177274,177280,177284-177285,177297,177324-177325Bjoern A. Zeeb2011-02-161-7/+2
| | | | | | | | | | | | | | | | | | | | | | | | | VNET socket push back: try to minimize the number of places where we have to switch vnets and narrow down the time we stay switched. Add assertions to the socket code to catch possibly unset vnets as seen in r204147. While this reduces the number of vnet recursion in some places like NFS, POSIX local sockets and some netgraph, .. recursions are impossible to fix. The current expectations are documented at the beginning of uipc_socket.c along with the other information there. Sponsored by: The FreeBSD Foundation Sponsored by: CK Software GmbH Reviewed by: jhb Tested by: zec Tested by: Mikolaj Golub (to.my.trociny gmail.com) MFC after: 2 weeks Notes: svn path=/head/; revision=218757
* Remove extraneous semicolons, no functional changes.Martin Blapp2010-01-071-1/+1
| | | | | | | | Submitted by: Marc Balmer <marc@msys.ch> MFC after: 1 week Notes: svn path=/head/; revision=201758
* Add a few more V_hacks to nfsclient to allow machines with a VIMAGEBjoern A. Zeeb2009-12-131-0/+7
| | | | | | | | | | | | | | kernel to boot from NFS. [1] Note: this is not a full virtualization of nfsclient. It is only does what advertised above and nothing more. Requested by: public demand [1] Tested by: kris, .. MFC after: 5 days Notes: svn path=/head/; revision=200471
* Rework global locks for interface list and index management, correctingRobert Watson2009-08-231-1/+1
| | | | | | | | | | | | | | | | | several critical bugs, including race conditions and lock order issues: Replace the single rwlock, ifnet_lock, with two locks, an rwlock and an sxlock. Either can be held to stablize the lists and indexes, but both are required to write. This allows the list to be held stable in both network interrupt contexts and sleepable user threads across sleeping memory allocations or device driver interactions. As before, writes to the interface list must occur from sleepable contexts. Reviewed by: bz, julian MFC after: 3 days Notes: svn path=/head/; revision=196481
* Merge the remainder of kern_vimage.c and vimage.h into vnet.c andRobert Watson2009-08-011-1/+0
| | | | | | | | | | | | | vnet.h, we now use jails (rather than vimages) as the abstraction for virtualization management, and what remained was specific to virtual network stacks. Minor cleanups are done in the process, and comments updated to reflect these changes. Reviewed by: bz Approved by: re (vimage blanket) Notes: svn path=/head/; revision=196019
* Build on Jeff Roberson's linker-set based dynamic per-CPU allocatorRobert Watson2009-07-141-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (DPCPU), as suggested by Peter Wemm, and implement a new per-virtual network stack memory allocator. Modify vnet to use the allocator instead of monolithic global container structures (vinet, ...). This change solves many binary compatibility problems associated with VIMAGE, and restores ELF symbols for virtualized global variables. Each virtualized global variable exists as a "reference copy", and also once per virtual network stack. Virtualized global variables are tagged at compile-time, placing the in a special linker set, which is loaded into a contiguous region of kernel memory. Virtualized global variables in the base kernel are linked as normal, but those in modules are copied and relocated to a reserved portion of the kernel's vnet region with the help of a the kernel linker. Virtualized global variables exist in per-vnet memory set up when the network stack instance is created, and are initialized statically from the reference copy. Run-time access occurs via an accessor macro, which converts from the current vnet and requested symbol to a per-vnet address. When "options VIMAGE" is not compiled into the kernel, normal global ELF symbols will be used instead and indirection is avoided. This change restores static initialization for network stack global variables, restores support for non-global symbols and types, eliminates the need for many subsystem constructors, eliminates large per-subsystem structures that caused many binary compatibility issues both for monitoring applications (netstat) and kernel modules, removes the per-function INIT_VNET_*() macros throughout the stack, eliminates the need for vnet_symmap ksym(2) munging, and eliminates duplicate definitions of virtualized globals under VIMAGE_GLOBALS. Bump __FreeBSD_version and update UPDATING. Portions submitted by: bz Reviewed by: bz, zec Discussed with: gnn, jamie, jeff, jhb, julian, sam Suggested by: peter Approved by: re (kensmith) Notes: svn path=/head/; revision=195699
* Remove the old kernel RPC implementation and the NFS_LEGACYRPC option.Doug Rabson2009-06-301-2/+8
| | | | | | | Approved by: re Notes: svn path=/head/; revision=195202
* Rename the host-related prison fields to be the same as the host.*Jamie Gritton2009-06-131-1/+1
| | | | | | | | | | parameters they represent, and the variables they replaced, instead of abbreviated versions of them. Approved by: bz (mentor) Notes: svn path=/head/; revision=194118
* After r193232 rt_tables in vnet.h are no longer indirectly dependent onBjoern A. Zeeb2009-06-081-1/+0
| | | | | | | | | | | | the ROUTETABLES kernel option thus there is no need to include opt_route.h anymore in all consumers of vnet.h and no longer depend on it for module builds. Remove the hidden include in flowtable.h as well and leave the two explicit #includes in ip_input.c and ip_output.c. Notes: svn path=/head/; revision=193744
* Convert the two dimensional array to be malloced and introduceBjoern A. Zeeb2009-06-011-3/+7
| | | | | | | | | | | | | | | | | | | an accessor function to get the correct rnh pointer back. Update netstat to get the correct pointer using kvm_read() as well. This not only fixes the ABI problem depending on the kernel option but also permits the tunable to overwrite the kernel option at boot time up to MAXFIBS, enlarging the number of FIBs without having to recompile. So people could just use GENERIC now. Reviewed by: julian, rwatson, zec X-MFC: not possible Notes: svn path=/head/; revision=193232
* Place hostnames and similar information fully under the prison system.Jamie Gritton2009-05-291-4/+5
| | | | | | | | | | | | | | | | | | | | The system hostname is now stored in prison0, and the global variable "hostname" has been removed, as has the hostname_mtx mutex. Jails may have their own host information, or they may inherit it from the parent/system. The proper way to read the hostname is via getcredhostname(), which will copy either the hostname associated with the passed cred, or the system hostname if you pass NULL. The system hostname can still be accessed directly (and without locking) at prison0.pr_host, but that should be avoided where possible. The "similar information" referred to is domainname, hostid, and hostuuid, which have also become prison parameters and had their associated global variables removed. Approved by: bz (mentor) Notes: svn path=/head/; revision=193066
* While r192615 fixed the former problems, make this file VIMAGEBjoern A. Zeeb2009-05-231-0/+3
| | | | | | | compliant now as well initializing local context variables. Notes: svn path=/head/; revision=192645
* It seems this file was ignored by MRT, rnh locking changes and new-arpv2.Bjoern A. Zeeb2009-05-231-17/+3
| | | | | | | | | | | So let the V_irtualization people finally make the disabled debugging code compile again. MFC after: 2 weeks X-MFC: MRT and adapt rnh locking Notes: svn path=/head/; revision=192615
* Remove the unmaintained University of Michigan NFSv4 client from 8.xRobert Watson2009-05-221-2/+0
| | | | | | | | | | prior to 8.0-RELEASE. Rick Macklem's new and more feature-rich NFSv234 client and server are replacing it. Discussed with: rmacklem Notes: svn path=/head/; revision=192578
* For all files including net/vnet.h directly include opt_route.h andBjoern A. Zeeb2009-02-271-0/+1
| | | | | | | | | | | | | | | | | net/route.h. Remove the hidden include of opt_route.h and net/route.h from net/vnet.h. We need to make sure that both opt_route.h and net/route.h are included before net/vnet.h because of the way MRT figures out the number of FIBs from the kernel option. If we do not, we end up with the default number of 1 when including net/vnet.h and array sizes are wrong. This does not change the list of files which depend on opt_route.h but we can identify them now more easily. Notes: svn path=/head/; revision=189106
* Rather than using hidden includes (with cicular dependencies),Bjoern A. Zeeb2008-12-021-0/+1
| | | | | | | | | | | | | | directly include only the header files needed. This reduces the unneeded spamming of various headers into lots of files. For now, this leaves us with very few modules including vnet.h and thus needing to depend on opt_route.h. Reviewed by: brooks, gnn, des, zec, imp Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=185571
* Commit step 1 of the vimage project, (network stack)Bjoern A. Zeeb2008-08-171-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | virtualization work done by Marko Zec (zec@). This is the first in a series of commits over the course of the next few weeks. Mark all uses of global variables to be virtualized with a V_ prefix. Use macros to map them back to their global names for now, so this is a NOP change only. We hope to have caught at least 85-90% of what is needed so we do not invalidate a lot of outstanding patches again. Obtained from: //depot/projects/vimage-commit2/... Reviewed by: brooks, des, ed, mav, julian, jamie, kris, rwatson, zec, ... (various people I forgot, different versions) md5 (with a bit of help) Sponsored by: NLnet Foundation, The FreeBSD Foundation X-MFC after: never V_Commit_Message_Reviewed_By: more people than the patch Notes: svn path=/head/; revision=181803
* Introduce a new lock, hostname_mtx, and use it to synchronize accessRobert Watson2008-07-051-0/+2
| | | | | | | | | | | | | | | to global hostname and domainname variables. Where necessary, copy to or from a stack-local buffer before performing copyin() or copyout(). A few uses, such as in cd9660 and daemon_saver, remain under-synchronized and will require further updates. Correct a bug in which a failed copyin() of domainname would leave domainname potentially corrupted. MFC after: 3 weeks Notes: svn path=/head/; revision=180291
* Allow the block size used when booting over NFS to be overridden. It defaultsBenno Rice2008-05-161-2/+7
| | | | | | | to 8192 bytes which is the size currently used. Notes: svn path=/head/; revision=179039
* Add code to allow the system to handle multiple routing tables.Julian Elischer2008-05-091-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This particular implementation is designed to be fully backwards compatible and to be MFC-able to 7.x (and 6.x) Currently the only protocol that can make use of the multiple tables is IPv4 Similar functionality exists in OpenBSD and Linux. From my notes: ----- One thing where FreeBSD has been falling behind, and which by chance I have some time to work on is "policy based routing", which allows different packet streams to be routed by more than just the destination address. Constraints: ------------ I want to make some form of this available in the 6.x tree (and by extension 7.x) , but FreeBSD in general needs it so I might as well do it in -current and back port the portions I need. One of the ways that this can be done is to have the ability to instantiate multiple kernel routing tables (which I will now refer to as "Forwarding Information Bases" or "FIBs" for political correctness reasons). Which FIB a particular packet uses to make the next hop decision can be decided by a number of mechanisms. The policies these mechanisms implement are the "Policies" referred to in "Policy based routing". One of the constraints I have if I try to back port this work to 6.x is that it must be implemented as a EXTENSION to the existing ABIs in 6.x so that third party applications do not need to be recompiled in timespan of the branch. This first version will not have some of the bells and whistles that will come with later versions. It will, for example, be limited to 16 tables in the first commit. Implementation method, Compatible version. (part 1) ------------------------------- For this reason I have implemented a "sufficient subset" of a multiple routing table solution in Perforce, and back-ported it to 6.x. (also in Perforce though not always caught up with what I have done in -current/P4). The subset allows a number of FIBs to be defined at compile time (8 is sufficient for my purposes in 6.x) and implements the changes needed to allow IPV4 to use them. I have not done the changes for ipv6 simply because I do not need it, and I do not have enough knowledge of ipv6 (e.g. neighbor discovery) needed to do it. Other protocol families are left untouched and should there be users with proprietary protocol families, they should continue to work and be oblivious to the existence of the extra FIBs. To understand how this is done, one must know that the current FIB code starts everything off with a single dimensional array of pointers to FIB head structures (One per protocol family), each of which in turn points to the trie of routes available to that family. The basic change in the ABI compatible version of the change is to extent that array to be a 2 dimensional array, so that instead of protocol family X looking at rt_tables[X] for the table it needs, it looks at rt_tables[Y][X] when for all protocol families except ipv4 Y is always 0. Code that is unaware of the change always just sees the first row of the table, which of course looks just like the one dimensional array that existed before. The entry points rtrequest(), rtalloc(), rtalloc1(), rtalloc_ign() are all maintained, but refer only to the first row of the array, so that existing callers in proprietary protocols can continue to do the "right thing". Some new entry points are added, for the exclusive use of ipv4 code called in_rtrequest(), in_rtalloc(), in_rtalloc1() and in_rtalloc_ign(), which have an extra argument which refers the code to the correct row. In addition, there are some new entry points (currently called rtalloc_fib() and friends) that check the Address family being looked up and call either rtalloc() (and friends) if the protocol is not IPv4 forcing the action to row 0 or to the appropriate row if it IS IPv4 (and that info is available). These are for calling from code that is not specific to any particular protocol. The way these are implemented would change in the non ABI preserving code to be added later. One feature of the first version of the code is that for ipv4, the interface routes show up automatically on all the FIBs, so that no matter what FIB you select you always have the basic direct attached hosts available to you. (rtinit() does this automatically). You CAN delete an interface route from one FIB should you want to but by default it's there. ARP information is also available in each FIB. It's assumed that the same machine would have the same MAC address, regardless of which FIB you are using to get to it. This brings us as to how the correct FIB is selected for an outgoing IPV4 packet. Firstly, all packets have a FIB associated with them. if nothing has been done to change it, it will be FIB 0. The FIB is changed in the following ways. Packets fall into one of a number of classes. 1/ locally generated packets, coming from a socket/PCB. Such packets select a FIB from a number associated with the socket/PCB. This in turn is inherited from the process, but can be changed by a socket option. The process in turn inherits it on fork. I have written a utility call setfib that acts a bit like nice.. setfib -3 ping target.example.com # will use fib 3 for ping. It is an obvious extension to make it a property of a jail but I have not done so. It can be achieved by combining the setfib and jail commands. 2/ packets received on an interface for forwarding. By default these packets would use table 0, (or possibly a number settable in a sysctl(not yet)). but prior to routing the firewall can inspect them (see below). (possibly in the future you may be able to associate a FIB with packets received on an interface.. An ifconfig arg, but not yet.) 3/ packets inspected by a packet classifier, which can arbitrarily associate a fib with it on a packet by packet basis. A fib assigned to a packet by a packet classifier (such as ipfw) would over-ride a fib associated by a more default source. (such as cases 1 or 2). 4/ a tcp listen socket associated with a fib will generate accept sockets that are associated with that same fib. 5/ Packets generated in response to some other packet (e.g. reset or icmp packets). These should use the FIB associated with the packet being reponded to. 6/ Packets generated during encapsulation. gif, tun and other tunnel interfaces will encapsulate using the FIB that was in effect withthe proces that set up the tunnel. thus setfib 1 ifconfig gif0 [tunnel instructions] will set the fib for the tunnel to use to be fib 1. Routing messages would be associated with their process, and thus select one FIB or another. messages from the kernel would be associated with the fib they refer to and would only be received by a routing socket associated with that fib. (not yet implemented) In addition Netstat has been edited to be able to cope with the fact that the array is now 2 dimensional. (It looks in system memory using libkvm (!)). Old versions of netstat see only the first FIB. In addition two sysctls are added to give: a) the number of FIBs compiled in (active) b) the default FIB of the calling process. Early testing experience: ------------------------- Basically our (IronPort's) appliance does this functionality already using ipfw fwd but that method has some drawbacks. For example, It can't fully simulate a routing table because it can't influence the socket's choice of local address when a connect() is done. Testing during the generating of these changes has been remarkably smooth so far. Multiple tables have co-existed with no notable side effects, and packets have been routes accordingly. ipfw has grown 2 new keywords: setfib N ip from anay to any count ip from any to any fib N In pf there seems to be a requirement to be able to give symbolic names to the fibs but I do not have that capacity. I am not sure if it is required. SCTP has interestingly enough built in support for this, called VRFs in Cisco parlance. it will be interesting to see how that handles it when it suddenly actually does something. Where to next: -------------------- After committing the ABI compatible version and MFCing it, I'd like to proceed in a forward direction in -current. this will result in some roto-tilling in the routing code. Firstly: the current code's idea of having a separate tree per protocol family, all of the same format, and pointed to by the 1 dimensional array is a bit silly. Especially when one considers that there is code that makes assumptions about every protocol having the same internal structures there. Some protocols don't WANT that sort of structure. (for example the whole idea of a netmask is foreign to appletalk). This needs to be made opaque to the external code. My suggested first change is to add routing method pointers to the 'domain' structure, along with information pointing the data. instead of having an array of pointers to uniform structures, there would be an array pointing to the 'domain' structures for each protocol address domain (protocol family), and the methods this reached would be called. The methods would have an argument that gives FIB number, but the protocol would be free to ignore it. When the ABI can be changed it raises the possibilty of the addition of a fib entry into the "struct route". Currently, the structure contains the sockaddr of the desination, and the resulting fib entry. To make this work fully, one could add a fib number so that given an address and a fib, one can find the third element, the fib entry. Interaction with the ARP layer/ LL layer would need to be revisited as well. Qing Li has been working on this already. This work was sponsored by Ironport Systems/Cisco Reviewed by: several including rwatson, bz and mlair (parts each) Obtained from: Ironport systems/Cisco Notes: svn path=/head/; revision=178888
* Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, whichRobert Watson2007-08-061-4/+0
| | | | | | | | | | | | | | | | | | previously conditionally acquired Giant based on debug.mpsafenet. As that has now been removed, they are no longer required. Removing them significantly simplifies error-handling in the socket layer, eliminated quite a bit of unwinding of locking in error cases. While here clean up the now unneeded opt_net.h, which previously was used for the NET_WITH_GIANT kernel option. Clean up some related gotos for consistency. Reviewed by: bz, csjp Tested by: kris Approved by: re (kensmith) Notes: svn path=/head/; revision=171744
* Use pause() rather than tsleep() on stack variables and function pointers.John Baldwin2007-02-271-1/+1
| | | | Notes: svn path=/head/; revision=167086
* consolidate parsing of nfs root mount options in one placeSam Leffler2006-12-061-40/+3
| | | | | | | | | | and handle all options (some may require fixes elsewhere) Reviewed by: jhb, mohans MFC after: 1 month Notes: svn path=/head/; revision=164934
* honor nolockd flag in root mount optionsSam Leffler2006-11-071-0/+2
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=164063
* There is a consensus that ifaddr.ifa_addr should never be NULL,Yaroslav Tykhiy2006-06-291-4/+5
| | | | | | | | | | | | | except in places dealing with ifaddr creation or destruction; and in such special places incomplete ifaddrs should never be linked to system-wide data structures. Therefore we can eliminate all the superfluous checks for "ifa->ifa_addr != NULL" and get ready to the system crashing honestly instead of masking possible bugs. Suggested by: glebius, jhb, ru Notes: svn path=/head/; revision=160038
* Use the elegant TAILQ_FOREACH() in place of a hand-rolled for() loop.Yaroslav Tykhiy2006-06-291-3/+1
| | | | Notes: svn path=/head/; revision=160029
* When netbooting, as soon as we've figured out which interface we bootedDag-Erling Smørgrav2005-04-261-0/+2
| | | | | | | from, store its name in a kenv variable. Notes: svn path=/head/; revision=145570
* /* -> /*- for license, minor formatting changesWarner Losh2005-01-071-1/+1
| | | | Notes: svn path=/head/; revision=139823
* Convert a GIANT_REQUIRED; into a NET_ASSERT_GIANT();, as sockets areRobert Watson2004-12-051-1/+1
| | | | | | | now only conditionally protected by Giant based on debug.mpsafenet. Notes: svn path=/head/; revision=138418
* Move a relic to its correct location(s): Put nfs diskless initializationPoul-Henning Kamp2004-07-281-0/+3
| | | | | | | calls with the code they call. (Yet another example of mindless copy&paste). Notes: svn path=/head/; revision=132808
* Change the following environment variables to kernel options:Brian Somers2004-07-081-80/+76
| | | | | | | | | | | | | | | | bootp -> BOOTP bootp.nfsroot -> BOOTP_NFSROOT bootp.nfsv3 -> BOOTP_NFSV3 bootp.compat -> BOOTP_COMPAT bootp.wired_to -> BOOTP_WIRED_TO - i.e. back out the previous commit. It's already possible to pxeboot(8) with a GENERIC kernel. Pointed out by: dwmalone Notes: svn path=/head/; revision=131840
* Change the following kernel options to environment variables:Brian Somers2004-07-081-76/+80
| | | | | | | | | | | | | | | | | | | | | BOOTP -> bootp BOOTP_NFSROOT -> bootp.nfsroot BOOTP_NFSV3 -> bootp.nfsv3 BOOTP_COMPAT -> bootp.compat BOOTP_WIRED_TO -> bootp.wired_to This lets you PXE boot with a GENERIC kernel by putting this sort of thing in loader.conf: bootp="YES" bootp.nfsroot="YES" bootp.nfsv3="YES" bootp.wired_to="bge1" or even setting the variables manually from the OK prompt. Notes: svn path=/head/; revision=131814
* Convert GIANT_REQUIRED to NET_ASSERT_GIANT where Giant is used toRobert Watson2004-06-161-1/+1
| | | | | | | | protect socket operations. Leave one "as-is" as it also frobs rootvp. Notes: svn path=/head/; revision=130554
* Allow kernel with the BOOTP option to boot when DHCP/BOOTP sets the rootBrooks Davis2004-03-121-11/+37
| | | | | | | | | | | | | path to an absolute path without a host name. Previously, there was a nasty POLA violation where a system would PXE boot until you added the BOOTP option and then it would panic instead. Reviewed by: tegge, Dirk-Willem van Gulik <dirkx at webweaving.org> (a previous version) Submitted by: tegge (getip function) Notes: svn path=/head/; revision=126888
* University of Michigan's Citi NFSv4 kernel client code.Alfred Perlstein2003-11-141-0/+2
| | | | | | | Submitted by: Jim Rees <rees@umich.edu> Notes: svn path=/head/; revision=122698
* Assert GIANT_REQUIRED where sockets are manipulated. This isSam Leffler2003-11-071-0/+4
| | | | | | | | | | preparatory for MPSAFE network commits and ongoing socket locking work. Supported by: FreeBSD Foundation Notes: svn path=/head/; revision=122261
* Replace the if_name and if_unit members of struct ifnet with new membersBrooks Davis2003-10-311-7/+5
| | | | | | | | | | | | | | | | 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) Notes: svn path=/head/; revision=121816
* - Consistently set sopt_dir.Jeff Roberson2003-10-041-0/+1
| | | | | | | Pointed out by: pete@isilon.com Notes: svn path=/head/; revision=120755
* Remove now unused BOOTP tags related to NFS swap device.Poul-Henning Kamp2003-09-051-3/+0
| | | | Notes: svn path=/head/; revision=119766
* Remove the magic way of configuring NFS backed swap.Poul-Henning Kamp2003-08-151-163/+0
| | | | | | | | | | | | | | | | This code dates back to the very first diskless support on FreeBSD, back when swapon(8) couldn't simply be run on a NFS backed file. Suggested replacement command sequence on the client: dd if=/dev/zero of=/swapfile bs=1k count=1 oseek=100000 swapon /swapfile rm -f /swapfile For whatever value of 100000 you want. Notes: svn path=/head/; revision=118944
* 0) preallocate per-interface context structures without the ifnet lock heldBill Fumerola2003-08-071-25/+38
| | | | | | | | | | | 1) avoid immediately calling bzero() after malloc() by passing M_ZERO 2) do not initialize individual members of the global context to zero 3) remove an unused assignment of ifctx in bootpc_init() Reviewed by: tegge Notes: svn path=/head/; revision=118639
* On a socket creation error, don't close the socket.Jeffrey Hsu2003-06-091-1/+2
| | | | Notes: svn path=/head/; revision=116070
* Remove unsed variables.Poul-Henning Kamp2003-05-311-7/+2
| | | | | | | | | Add explicit breaks to switch Found by: FlexeLint Notes: svn path=/head/; revision=115533
* Back out M_* changes, per decision of the TRB.Warner Losh2003-02-191-3/+3
| | | | | | | Approved by: trb Notes: svn path=/head/; revision=111119
* Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.Alfred Perlstein2003-01-211-3/+3
| | | | | | | Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT. Notes: svn path=/head/; revision=109623
* Fix typos, mostly s/ an / a / where appropriate and a few s/an/and/Jens Schweikhardt2002-12-301-1/+1
| | | | | | | Add FreeBSD Id tag where missing. Notes: svn path=/head/; revision=108470
* SMP locking for radix nodes.Jeffrey Hsu2002-12-241-0/+2
| | | | Notes: svn path=/head/; revision=108250
* SMP locking for ifnet list.Jeffrey Hsu2002-12-221-0/+4
| | | | Notes: svn path=/head/; revision=108172
* Increase size of ifnet.if_flags from 16 bits (short) to 32 bits (int). To avoidMaxim Sobolev2002-08-181-1/+1
| | | | | | | | | | breaking application ABI use unused ifreq.ifru_flags[1] for upper 16 bits in SIOCSIFFLAGS and SIOCGIFFLAGS ioctl's. Reviewed by: -hackers, -net Notes: svn path=/head/; revision=102052
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