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Michael Brown 72db14640c [tls] Split received records over multiple I/O buffers
TLS servers are not obliged to implement the RFC3546 maximum fragment
length extension, and many common servers (including OpenSSL, as used
in Apache's mod_ssl) do not do so.  iPXE may therefore have to cope
with TLS records of up to 16kB.  Allocations for 16kB have a
non-negligible chance of failing, causing the TLS connection to abort.

Fix by maintaining the received record as a linked list of I/O
buffers, rather than a single contiguous buffer.  To reduce memory
pressure, we also decrypt in situ, and deliver the decrypted data via
xfer_deliver_iob() rather than xfer_deliver_raw().

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2012-09-27 01:56:01 +01:00
2005-05-17 16:44:57 +00:00
2010-04-19 23:43:39 +01:00
2010-05-28 00:03:47 +01:00

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org
Description
xCAT Network Boot Agent
Readme 13 MiB
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