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path: root/sys/netinet6/ip6_id.c
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* ip6_randomflowlabel: Avoid blocking if random(4) is not availableConrad Meyer2019-04-231-0/+11
| | | | | | | | | | | | | | | | | If kern.random.initial_seeding.bypass_before_seeding is disabled, random(4) and arc4random(9) will block indefinitely until enough entropy is available to initially seed Fortuna. It seems that zero flowids are perfectly valid, so avoid blocking on random until initial seeding takes place. Discussed with: bz (earlier revision) Reviewed by: thj Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D20011 Notes: svn path=/head/; revision=346601
* Fix some typos.Pedro F. Giffuni2017-12-281-2/+2
| | | | | | | Obtained from: OpenBSD (CVS v1.5) Notes: svn path=/head/; revision=327297
* netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license.Pedro F. Giffuni2017-12-281-7/+2
| | | | | | | | | | This bring back r327293 from OpenBSD, with the important difference that we are now getting it from their ip6_id.c file. Obtained from: OpenBSD (CVS v1.3) Notes: svn path=/head/; revision=327296
* Start syncing changes from OpenBSD's ip6_id.c instead of ip_id.c.Pedro F. Giffuni2017-12-281-6/+3
| | | | | | | | | | | | | correct non-repetitive ID code, based on comments from niels provos. - seed2 is necessary, but use it as "seed2 + x" not "seed2 ^ x". - skipping number is not needed, so disable it for 16bit generator (makes the repetition period to 30000) Obtained from: OpenBSD (CVS rev. 1.2) MFC after: 1 week Notes: svn path=/head/; revision=327295
* Revert r327293Pedro F. Giffuni2017-12-281-1/+6
| | | | | | | | | | netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license. I was looking at the wrong file. There is an important merge that must be done before I can bring this change. Notes: svn path=/head/; revision=327294
* netinet6/ip6_id.c: niels kindly dropped clause 3/4 from the license.Pedro F. Giffuni2017-12-281-7/+2
| | | | | | | | | | | This file is supposed to be based on the OpenBSD CVS v1.6 but checking the OpenBSD repository the license had already dropped the 2&3 clasues by then. Catch up with the licensing. Obtained from: OpenBSD (CVS 1.2) Notes: svn path=/head/; revision=327293
* spdx: initial adoption of licensing ID tags.Pedro F. Giffuni2017-11-181-0/+2
| | | | | | | | | | | | | | | | | | | | 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. Initially, only tag files that use BSD 4-Clause "Original" license. RelNotes: yes Differential Revision: https://reviews.freebsd.org/D13133 Notes: svn path=/head/; revision=325966
* sys/net*: minor spelling fixes.Pedro F. Giffuni2016-05-031-3/+3
| | | | | | | No functional change. Notes: svn path=/head/; revision=298995
* Provide includes that are needed in these files, and before were readGleb Smirnoff2013-10-261-0/+1
| | | | | | | | | | in implicitly via if.h -> if_var.h pollution. Sponsored by: Netflix Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=257179
* - Use time_uptime instead of time_second in data structures forHiroki Sato2013-08-051-2/+2
| | | | | | | | | | | | PF_INET6 in kernel. This fixes various malfunction when the wall time clock is changed. Bump __FreeBSD_version to 1000041. - Use clock_gettime(CLOCK_MONOTONIC_FAST) in userland utilities. MFC after: 1 month Notes: svn path=/head/; revision=253970
* Clean up VCS Ids.David E. O'Brien2007-12-101-4/+7
| | | | Notes: svn path=/head/; revision=174510
* ANSIfy[1] plus some style cleanup nearby.Xin LI2007-07-051-1/+0
| | | | | | | | | Discussed with: gnn, rwatson Submitted by: Karl Sj?dahl - dunceor <dunceor gmail com> [1] Approved by: re (rwatson) Notes: svn path=/head/; revision=171259
* /* -> /*- for license, minor formatting changes, separate for KAMEWarner Losh2005-01-071-2/+2
| | | | Notes: svn path=/head/; revision=139826
* Get rid of the RANDOM_IP_ID option and make it a sysctl. NetBSDDavid Malone2004-08-141-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | have already done this, so I have styled the patch on their work: 1) introduce a ip_newid() static inline function that checks the sysctl and then decides if it should return a sequential or random IP ID. 2) named the sysctl net.inet.ip.random_id 3) IPv6 flow IDs and fragment IDs are now always random. Flow IDs and frag IDs are significantly less common in the IPv6 world (ie. rarely generated per-packet), so there should be smaller performance concerns. The sysctl defaults to 0 (sequential IP IDs). Reviewed by: andre, silby, mlaier, ume Based on: NetBSD MFC after: 2 months Notes: svn path=/head/; revision=133720
* add randomtab for ip6_randomflowlabel().Hajimu UMEMOTO2003-10-011-0/+11
| | | | | | | Obtained from: KAME Notes: svn path=/head/; revision=120652
* randomize IPv6 flowlabel when RANDOM_IP_ID is defined.Hajimu UMEMOTO2003-10-011-0/+7
| | | | | | | Obtained from: KAME Notes: svn path=/head/; revision=120649
* include opt_random_ip_id.hHajimu UMEMOTO2003-10-011-0/+2
| | | | Notes: svn path=/head/; revision=120642
* Don't compiled ip6_randomid() in if RANDOM_IP_ID is not defined.Hajimu UMEMOTO2003-10-011-0/+4
| | | | Notes: svn path=/head/; revision=120641
* randomize IPv6 fragment ID.Hajimu UMEMOTO2003-10-011-0/+247
Obtained from: KAME Notes: svn path=/head/; revision=120639
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