////////////////////////////////////////////////////////////////////////////// netsniff-ng - the packet sniffing beast \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ . . netsniff-ng is a free, performant /( )\ Linux network analyzer and .' {______} '. networking toolkit. If you will, \ ^, ,^ / the Swiss army knife for network |'O\ /O'| _.<0101011>-- packets. > `' '` < / ) ,.==., ( | Web: http://netsniff-ng.org .-(|/--~~--\|)-' ( ___ The gain of performance is \__.=|___E reached by built-in zero-copy mechanisms, so that on packet reception and transmission the kernel does not need to copy packets from kernel space to user space, and vice versa. The netsniff-ng toolkit's primary usage goal is to facilitate a network developer's / hacker's daily Linux plumbing. It can be used for network development, debugging, analysis, auditing or network reconnaissance. It consists of the following fixed set of utilities: * netsniff-ng: a zero-copy packet analyzer, pcap capturing/replaying tool * trafgen: a multithreaded low-level zero-copy network packet generator * mausezahn [*]: high-level packet generator for appliances with Cisco-CLI * ifpps: a top-like kernel networking and system statistics tool * curvetun [*]: a lightweight curve25519-based multiuser IP tunnel * astraceroute: an autonomous system trace route and DPI testing utility * flowtop: a top-like netfilter connection tracking tool * bpfc: a [seccomp-]BPF (Berkeley packet filter) compiler, JIT disassembler Note that tools marked with [*] should be considered as experimental for now, and not used in production environments as they still need more work to be fully stable and in line with others. You have been warned! Each release can be verified with Git and GPG, here are the steps to do so: 1) Import the maintainers public keys: git show maint-tklauser-pgp-pub | gpg --import git show maint-dborkman-pgp-pub | gpg --import 2) Verify the Git tag: git tag -v Carefully read the INSTALL document for the next steps in building netsniff-ng. Note that the toolkit is still quite young and under heavy development, not yet feature complete and in a quality level where we're satisfied with (i.e. for mausezahn). However, we're on a good way towards tackling all these goals. The netsniff-ng toolkit is an open source project covered by the GNU General Public License, version 2.0. For any questions or feedback about netsniff-ng you are welcome to leave us a message at . netsniff-ng is non-profit and provided in the hope, that it is found useful. The current project status can be considered as "working". In general, all tools have been tested by us to a great extend including their command-line options. In fact, many of our tools are used in a lot of production systems. However, we give no guarantee that our tools are free of bugs! If you spot some issues, contact us as described in REPORTING-BUGS. Also, have a look at our online FAQ for answering your questions. This project has received support from companies and institutions listed in the according section in the AUTHORS file. Thanks for contributing, we're thrilled to provide you with netsniff-ng! Happy packet hacking! d50a6d69d1d6feb4a'>soft-fp.h
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authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch)
tree75f65eba7eac9277971082a2d5a4cf1370562c0c /include/math-emu/soft-fp.h
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'include/math-emu/soft-fp.h')