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The UDP_ENCAP_ESPINUDP_NON_IKE mode, introduced into the Linux kernel in 2004 [2], has remained inactive and obsolete for an extended period. This mode was originally defined in an early version of an IETF draft [1] from 2001. By the time it was integrated into the kernel in 2004 [2], it had already been replaced by UDP_ENCAP_ESPINUDP [3] in later versions of draft-ietf-ipsec-udp-encaps, particularly in version 06. Over time, UDP_ENCAP_ESPINUDP_NON_IKE has lost its relevance, with no known use cases. With this commit, we remove support for UDP_ENCAP_ESPINUDP_NON_IKE, simplifying the codebase and eliminating unnecessary complexity. Kernel will return an error -ENOPROTOOPT if the userspace tries to set this option. References: [1] https://datatracker.ietf.org/doc/html/draft-ietf-ipsec-udp-encaps-00.txt [2] Commit that added UDP_ENCAP_ESPINUDP_NON_IKE to the Linux historic repository. Author: Andreas Gruenbacher <agruen@suse.de> Date: Fri Apr 9 01:47:47 2004 -0700 [IPSEC]: Support draft-ietf-ipsec-udp-encaps-00/01, some ipec impls need it. [3] Commit that added UDP_ENCAP_ESPINUDP to the Linux historic repository. Author: Derek Atkins <derek@ihtfp.com> Date: Wed Apr 2 13:21:02 2003 -0800 [IPSEC]: Implement UDP Encapsulation framework. Signed-off-by: Antony Antony <antony.antony@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.