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The netlink notifications triggered by the INIT and INIT_ACK chunks for a tracked SCTP association do not include protocol information for the corresponding connection - SCTP state and verification tags for the original and reply direction are missing. Since the connection tracking implementation allows user space programs to receive notifications about a connection and then create a new connection based on the values received in a notification, it makes sense that INIT and INIT_ACK notifications should contain the SCTP state and verification tags available at the time when a notification is sent. The missing verification tags cause a newly created netfilter connection to fail to verify the tags of SCTP packets when this connection has been created from the values previously received in an INIT or INIT_ACK notification. A PROTOINFO event is cached in sctp_packet() when the state of a connection changes. The CLOSED and COOKIE_WAIT state will be used for connections that have seen an INIT and INIT_ACK chunk, respectively. The distinct states will cause a connection state change in sctp_packet(). Signed-off-by: Jiri Wiesner <jwiesner@suse.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| 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 Restructured Text 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.