Michael Brown f35f5977c6 [tls] Refuse to change selected protocol version or cipher suite
Handling a TLS version 1.3 HelloRetryRequest will require processing
two ServerHello messages, the second of which must not reset the
running transcript digest (and is not permitted to change the selected
cipher suite).

Move the responsibility for setting the protocol version alongside the
responsibility for setting the cipher suite in tls_select_cipher(),
and refuse to change either protocol version or cipher suite if they
have already been selected.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2026-09-22 22:36:54 +01:00
2026-08-06 12:47:53 +01:00
2026-03-06 15:48:55 +00:00
2026-08-06 12:47:53 +01:00
2015-02-26 17:59:53 +00:00
2026-08-06 00:01:56 +01:00

iPXE network bootloader

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iPXE is the leading open source network boot firmware. It provides a full PXE implementation enhanced with additional features such as:

  • boot from a web server via HTTP or HTTPS,

  • boot from an iSCSI, FCoE, or AoE SAN,

  • control the boot process with a script,

  • create interactive forms and menus.

You can use iPXE to replace the existing PXE ROM on your network card, or you can chainload into iPXE to obtain the features of iPXE without the hassle of reflashing.

iPXE is free, open-source software licensed under the GNU GPL (with some portions under GPL-compatible licences).

You can download the rolling release binaries (built from the latest commit), or use the most recent stable release.

For full documentation, visit the iPXE website.

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