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* net: clean up empty lines in .c and .h filesMateusz Guzik2020-09-011-2/+0
| | | | Notes: svn path=/head/; revision=365071
* Make net.inet6.ip6.deembed_scopeid behaviour default & remove sysctl.Alexander V. Chernikov2020-08-151-4/+0
| | | | | | | | Submitted by: Neel Chauhan <neel AT neelc DOT org> Differential Revision: https://reviews.freebsd.org/D25637 Notes: svn path=/head/; revision=364250
* Fix typo in previous commitRyan Moeller2020-06-031-1/+1
| | | | | | | | | | | Applied the wrong patch Reported by: Michael Butler <imb@protected-networks.net> Approved by: mav (mentor) Sponsored by: iXsystems.com Notes: svn path=/head/; revision=361757
* scope6: Check for NULL afdata before dereferencingRyan Moeller2020-06-031-0/+4
| | | | | | | | | | | | Narrows the race window with if_detach. Approved by: mav (mentor) MFC after: 3 days Sponsored by: iXsystems, Inc. Differential Revision: https://reviews.freebsd.org/D25017 Notes: svn path=/head/; revision=361756
* Convert ip6_forward() to the new routing KPI.Alexander V. Chernikov2020-04-151-0/+22
| | | | | | | | | | | | | | | Update ip6_forward() internals to use deembedded IPv6 addresses to simplify calls to the new KPI and prepare for the future scope-embedding cleanup. Add in6_get_unicast_scopeid() and in6_set_unicast_scopeid() scopeid operation functions tailored for unicast processing. Reviewed by: ae Differential Revision: https://reviews.freebsd.org/D24334 Notes: svn path=/head/; revision=359963
* Mechanical cleanup of epoch(9) usage in network stack.Gleb Smirnoff2019-01-091-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | - Remove macros that covertly create epoch_tracker on thread stack. Such macros a quite unsafe, e.g. will produce a buggy code if same macro is used in embedded scopes. Explicitly declare epoch_tracker always. - Unmask interface list IFNET_RLOCK_NOSLEEP(), interface address list IF_ADDR_RLOCK() and interface AF specific data IF_AFDATA_RLOCK() read locking macros to what they actually are - the net_epoch. Keeping them as is is very misleading. They all are named FOO_RLOCK(), while they no longer have lock semantics. Now they allow recursion and what's more important they now no longer guarantee protection against their companion WLOCK macros. Note: INP_HASH_RLOCK() has same problems, but not touched by this commit. This is non functional mechanical change. The only functionally changed functions are ni6_addrs() and ni6_store_addrs(), where we no longer enter epoch recursively. Discussed with: jtl, gallatin Notes: svn path=/head/; revision=342872
* Use the new VNET_DEFINE_STATIC macro when we are defining static VNETAndrew Turner2018-07-241-1/+1
| | | | | | | | | | | variables. Reviewed by: bz Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D16147 Notes: svn path=/head/; revision=336676
* Constify argument of in6_getscope().Andrey V. Elsukov2018-06-051-1/+1
| | | | Notes: svn path=/head/; revision=334672
* sys/netinet6: fix typos in comments. No functional change.Alan Somers2018-01-231-1/+1
| | | | | | | | MFC after: 3 weeks Sponsored by: Spectra Logic Corp Notes: svn path=/head/; revision=328296
* sys: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-201-0/+2
| | | | | | | | | | | | | | | | | Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Notes: svn path=/head/; revision=326023
* Add a missing newline to a log message.Mark Johnston2016-02-121-1/+1
| | | | | | | MFC after: 1 week Notes: svn path=/head/; revision=295584
* Merge helper fib* functions used for basic lookups.Alexander V. Chernikov2015-12-081-0/+16
| | | | | | | | | | | | | | | | | | | | | | | Vast majority of rtalloc(9) users require only basic info from route table (e.g. "does the rtentry interface match with the interface I have?". "what is the MTU?", "Give me the IPv4 source address to use", etc..). Instead of hand-rolling lookups, checking if rtentry is up, valid, dealing with IPv6 mtu, finding "address" ifp (almost never done right), provide easy-to-use API hiding all the complexity and returning the needed info into small on-stack structure. This change also helps hiding route subsystem internals (locking, direct rtentry accesses). Additionaly, using this API improves lookup performance since rtentry is not locked. (This is safe, since all the rtentry changes happens under both radix WLOCK and rtentry WLOCK). Sponsored by: Yandex LLC Notes: svn path=/head/; revision=291993
* Add sa6_checkzone_ifp() function. It checks correctness of structAndrey V. Elsukov2014-11-101-0/+21
| | | | | | | | | | sockaddr_in6, usually obtained from the user level through ioctl. It initializes sin6_scope_id using given interface. Sponsored by: Yandex LLC Notes: svn path=/head/; revision=274348
* Remove SYSCTL_VNET_* macros, and simply put CTLFLAG_VNET where needed.Gleb Smirnoff2014-11-071-1/+1
| | | | | | | Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=274225
* * use M_ZERO flag with malloc instead of explicit zeroing.Andrey V. Elsukov2014-09-111-10/+2
| | | | | | | | | | * remove MULTI_SCOPE ifdef. Obtained from: Yandex LLC Sponsored by: Yandex LLC Notes: svn path=/head/; revision=271426
* Introduce new scope related functions.Andrey V. Elsukov2014-09-111-0/+74
| | | | | | | | | | | | | | | | | * new macro to remove magic number - IPV6_ADDR_SCOPES_COUNT; * sa6_checkzone() - this function checks sockaddr_in6 structure for correctness of sin6_scope_id. It also can fill correct value sometimes. * in6_getscopezone() - this function returns scope zone id for specified interface and scope. * in6_getlinkifnet() - this function returns struct ifnet for corresponding zone id of link-local scope. Obtained from: Yandex LLC Sponsored by: Yandex LLC Notes: svn path=/head/; revision=271425
* * constify argument of in6_addrscope();Andrey V. Elsukov2014-09-111-51/+13
| | | | | | | | | | | | * use IN6_IS_ADDR_XXX() macro instead of hardcoded values; * for multicast addresses just return scope value, the only exception is addresses with 0x0F scope value (RFC 4291 p2.7.0); Obtained from: Yandex LLC Sponsored by: Yandex LLC Notes: svn path=/head/; revision=271421
* Add some missing checks for unsupported interfaces (e.g. pflog(4)) whenMark Johnston2014-08-221-2/+29
| | | | | | | | | | | | | handling ioctls. While here, remove duplicated checks for a NULL ifp in in6_control(): this check is already done near the beginning of the function. PR: 189117 Reviewed by: hrs MFC after: 2 weeks Notes: svn path=/head/; revision=270348
* The r48589 promised to remove implicit inclusion of if_var.h soon. PrepareGleb Smirnoff2013-10-261-0/+1
| | | | | | | | | | | to this event, adding if_var.h to files that do need it. Also, include all includes that now are included due to implicit pollution via if_var.h Sponsored by: Netflix Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=257176
* Simplify in6_setscope() function to get better performance.Andrey V. Elsukov2013-01-101-46/+17
| | | | | | | | | | | | | | | Currently we use interface indeces as zone IDs for link-local and interface-local scopes, and since we don't have any tool to configure zone IDs, there is no need to acquire the afdata lock several times per packet only to read if_index value. So, now in6_setscope reads zone IDs for interface-local, link-local and global scopes without a lock. Sponsored by: Yandex LLC MFC after: 2 weeks Notes: svn path=/head/; revision=245244
* Remove unneeded variable.Andrey V. Elsukov2013-01-091-6/+1
| | | | | | | MFC after: 1 week Notes: svn path=/head/; revision=245233
* The in6_setscope() function determines the scope zone id of an addressAndrey V. Elsukov2013-01-091-14/+15
| | | | | | | | | | | | | | | and embeds it into address. Inside the kernel we keep addresses with embedded zone id only for two scopes: link-local and interface-local. For other scopes this function is nop in most cases. To reduce an overhead of locking, first check that address is capable for embedding. Also, handle the loopback address before acquire the lock. Sponsored by: Yandex LLC MFC after: 1 week Notes: svn path=/head/; revision=245199
* - Move definition of V_deembed_scopeid to scope6_var.h.Hiroki Sato2012-12-051-0/+9
| | | | | | | | | - Deembed scope id in L3 address in in6_lltable_dump(). - Simplify scope id recovery in rtsock routines. - Remove embedded scope id handling in ndp(8) and route(8) completely. Notes: svn path=/head/; revision=243903
* Check if an extracted zoneid is equal to the non-zero sin6_scope_id only whenHiroki Sato2012-11-181-6/+8
| | | | | | | it is link-local or MC interface-local. Notes: svn path=/head/; revision=243235
* if_afdata lock was converted from mutex to rwlock a long ago, so we canAndrey V. Elsukov2012-11-141-14/+15
| | | | | | | | | | replace IF_AFDATA_LOCK() macro depending to the access type. Sponsored by: Yandex LLC MFC after: 1 week Notes: svn path=/head/; revision=243031
* SCOPE6_LOCK protects V_sid_default, no need to acquire it withoutAndrey V. Elsukov2012-11-141-9/+0
| | | | | | | | | | any access to V_sid_default. Sponsored by: Yandex LLC MFC after: 1 week Notes: svn path=/head/; revision=243029
* zoneid has unsigned type.Andrey V. Elsukov2012-11-141-1/+1
| | | | | | | MFC after: 1 week Notes: svn path=/head/; revision=243028
* MFp4 bz_ipv6_fast:Bjoern A. Zeeb2012-05-241-0/+13
| | | | | | | | | | | | | | | Introduce in6_getscope() to allow more effective checksum computations without the need to copy the address to clear the scope. Sponsored by: The FreeBSD Foundation Sponsored by: iXsystems Reviewed by: gnn (as part of the whole) MFC After: 3 days Notes: svn path=/head/; revision=235916
* After some off-list discussion, revert a number of changes to theDimitry Andric2010-11-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DPCPU_DEFINE and VNET_DEFINE macros, as these cause problems for various people working on the affected files. A better long-term solution is still being considered. This reversal may give some modules empty set_pcpu or set_vnet sections, but these are harmless. Changes reverted: ------------------------------------------------------------------------ r215318 | dim | 2010-11-14 21:40:55 +0100 (Sun, 14 Nov 2010) | 4 lines Instead of unconditionally emitting .globl's for the __start_set_xxx and __stop_set_xxx symbols, only emit them when the set_vnet or set_pcpu sections are actually defined. ------------------------------------------------------------------------ r215317 | dim | 2010-11-14 21:38:11 +0100 (Sun, 14 Nov 2010) | 3 lines Apply the STATIC_VNET_DEFINE and STATIC_DPCPU_DEFINE macros throughout the tree. ------------------------------------------------------------------------ r215316 | dim | 2010-11-14 21:23:02 +0100 (Sun, 14 Nov 2010) | 2 lines Add macros to define static instances of VNET_DEFINE and DPCPU_DEFINE. Notes: svn path=/head/; revision=215701
* Apply the STATIC_VNET_DEFINE and STATIC_DPCPU_DEFINE macros throughoutDimitry Andric2010-11-141-1/+1
| | | | | | | the tree. Notes: svn path=/head/; revision=215317
* MFP4: @176978-176982, 176984, 176990-176994, 177441Bjoern A. Zeeb2010-04-291-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | "Whitspace" churn after the VIMAGE/VNET whirls. Remove the need for some "init" functions within the network stack, like pim6_init(), icmp_init() or significantly shorten others like ip6_init() and nd6_init(), using static initialization again where possible and formerly missed. Move (most) variables back to the place they used to be before the container structs and VIMAGE_GLOABLS (before r185088) and try to reduce the diff to stable/7 and earlier as good as possible, to help out-of-tree consumers to update from 6.x or 7.x to 8 or 9. This also removes some header file pollution for putatively static global variables. Revert VIMAGE specific changes in ipfilter::ip_auth.c, that are no longer needed. Reviewed by: jhb Discussed with: rwatson Sponsored by: The FreeBSD Foundation Sponsored by: CK Software GmbH MFC after: 6 days Notes: svn path=/head/; revision=207369
* 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
* Remove unused VNET_SET() and related macros; only VNET_GET() isRobert Watson2009-07-161-1/+1
| | | | | | | | | | | | ever actually used. Rename VNET_GET() to VNET() to shorten variable references. Discussed with: bz, julian Reviewed by: bz Approved by: re (kensmith, kib) Notes: svn path=/head/; revision=195727
* Build on Jeff Roberson's linker-set based dynamic per-CPU allocatorRobert Watson2009-07-141-12/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (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
* After cleaning up rt_tables from vnet.h and cleaning up opt_route.hBjoern A. Zeeb2009-06-231-1/+0
| | | | | | | | a lot of files no longer need route.h either. Garbage collect them. While here remove now unneeded vnet.h #includes as well. Notes: svn path=/head/; revision=194739
* After r193232 rt_tables in vnet.h are no longer indirectly dependent onBjoern A. Zeeb2009-06-081-2/+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
* First pass at separating per-vnet initializer functionsMarko Zec2009-04-061-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | from existing functions for initializing global state. At this stage, the new per-vnet initializer functions are directly called from the existing global initialization code, which should in most cases result in compiler inlining those new functions, hence yielding a near-zero functional change. Modify the existing initializer functions which are invoked via protosw, like ip_init() et. al., to allow them to be invoked multiple times, i.e. per each vnet. Global state, if any, is initialized only if such functions are called within the context of vnet0, which will be determined via the IS_DEFAULT_VNET(curvnet) check (currently always true). While here, V_irtualize a few remaining global UMA zones used by net/netinet/netipsec networking code. While it is not yet clear to me or anybody else whether this is the right thing to do, at this stage this makes the code more readable, and makes it easier to track uncollected UMA-zone-backed objects on vnet removal. In the long run, it's quite possible that some form of shared use of UMA zone pools among multiple vnets should be considered. Bump __FreeBSD_version due to changes in layout of structs vnet_ipfw, vnet_inet and vnet_net. Approved by: julian (mentor) Notes: svn path=/head/; revision=190787
* For all files including net/vnet.h directly include opt_route.h andBjoern A. Zeeb2009-02-271-0/+2
| | | | | | | | | | | | | | | | | 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. Zeeb2008-12-021-1/+3
| | | | | | | | | | | | | | 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
* Change the initialization methodology for global variables scheduledMarko Zec2008-11-191-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=185088
* Step 1.5 of importing the network stack virtualization infrastructureMarko Zec2008-10-021-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | from the vimage project, as per plan established at devsummit 08/08: http://wiki.freebsd.org/Image/Notes200808DevSummit Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator macros, and CURVNET_SET() context setting macros, all currently resolving to NOPs. Prepare for virtualization of selected SYSCTL objects by introducing a family of SYSCTL_V_*() macros, currently resolving to their global counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT(). Move selected #defines from sys/sys/vimage.h to newly introduced header files specific to virtualized subsystems (sys/net/vnet.h, sys/netinet/vinet.h etc.). All the changes are verified to have zero functional impact at this point in time by doing MD5 comparision between pre- and post-change object files(*). (*) netipsec/keysock.c did not validate depending on compile time options. Implemented by: julian, bz, brooks, zec Reviewed by: julian, bz, brooks, kris, rwatson, ... Approved by: julian (mentor) Obtained from: //depot/projects/vimage-commit2/... X-MFC after: never Sponsored by: NLnet Foundation, The FreeBSD Foundation Notes: svn path=/head/; revision=183550
* Commit step 1 of the vimage project, (network stack)Bjoern A. Zeeb2008-08-171-10/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Clean up VCS Ids.David E. O'Brien2007-12-101-3/+5
| | | | Notes: svn path=/head/; revision=174510
* ANSIfy[1] plus some style cleanup nearby.Xin LI2007-07-051-30/+19
| | | | | | | | | Discussed with: gnn, rwatson Submitted by: Karl Sj?dahl - dunceor <dunceor gmail com> [1] Approved by: re (rwatson) Notes: svn path=/head/; revision=171259
* MFp4: 92972, 98913 + one more changeBjoern A. Zeeb2006-12-121-1/+2
| | | | | | | | | | In ip6_sprintf no longer use and return one of eight static buffers for printing/logging ipv6 addresses. The caller now has to hand in a sufficiently large buffer as first argument. Notes: svn path=/head/; revision=165118
* oops, make it compilable. i need sleep. X-(Hajimu UMEMOTO2005-07-251-2/+2
| | | | Notes: svn path=/head/; revision=148399
* restore locks which disappeared wrongly by my previous commit.Hajimu UMEMOTO2005-07-251-1/+10
| | | | Notes: svn path=/head/; revision=148396
* scope cleanup. with this changeHajimu UMEMOTO2005-07-251-81/+173
| | | | | | | | | | | | | | | | | | | | | | - most of the kernel code will not care about the actual encoding of scope zone IDs and won't touch "s6_addr16[1]" directly. - similarly, most of the kernel code will not care about link-local scoped addresses as a special case. - scope boundary check will be stricter. For example, the current *BSD code allows a packet with src=::1 and dst=(some global IPv6 address) to be sent outside of the node, if the application do: s = socket(AF_INET6); bind(s, "::1"); sendto(s, some_global_IPv6_addr); This is clearly wrong, since ::1 is only meaningful within a single node, but the current implementation of the *BSD kernel cannot reject this attempt. Submitted by: JINMEI Tatuya <jinmei__at__isl.rdc.toshiba.co.jp> Obtained from: KAME Notes: svn path=/head/; revision=148385
* /* -> /*- for license, minor formatting changes, separate for KAMEWarner Losh2005-01-071-1/+1
| | | | Notes: svn path=/head/; revision=139826
* Reviewed by: SUZUKI Shinsuke <suz@kame.net>George V. Neville-Neil2004-11-291-17/+34
| | | | | | | | | | | | | Approved by: Robert Watson <rwatson@freebsd.org> Add locking to the IPv6 scoping code. All spl() like calls have also been removed. Cleaning up the handling of ifnet data will happen at a later date. Notes: svn path=/head/; revision=138184
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