Michael Brown b4d9949db1 [tls] Propagate sizing errors to containing data structures
The existing ad hoc code that builds TLS data structures generally
performs a single length calculation and a single allocation, and if
the allocation succeeds then the data structure will be filled in with
no possible further errors arising.

Allow this pattern to be replicated when using the generic builder, by
ensuring that an error in calculating the length of a contained data
structure (e.g. an extension) will automatically propagate that error
to the calculation of the length of the containing structure (e.g. a
ClientHello that contains the extension).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2026-09-20 14:39:41 +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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