TFTP: Implement block and window size options

[Sebastian Huber]

Support the following TFTP options:

• RFC 2347 TFTP Option Extension
• RFC 2348 TFTP Blocksize Option
• RFC 7440 TFTP Windowsize Option

[Frank Kühndel <frank.kuehndel@…>]

In c044f050/rtems:

TFTPFS: Cleanup: Remove spaces at lines ends

Update #4666.

[Frank Kühndel <frank.kuehndel@…>]

In 679e7f10/rtems:

TFTPFS: Implement block and window size options

The original file cpukit/libfs/src/ftpfs/tftpDriver.c
is split into two:

tftpfs.c - This file contains the code from tftpDriver.c

related to file system operations such as mount(),
open(), read(), and so on.

tftpDriver.c - In the original file remains only the code related

to networking. This code implements the Trivial
File Transfer Protocol (TFTP).

Moreover, the code is extended to support

• RFC 2347 TFTP Option Extension
• RFC 2348 TFTP Blocksize Option
• RFC 7440 TFTP Windowsize Option

Update #4666.

[Frank Kühndel <frank.kuehndel@…>]

In 3e2b4ec/rtems:

TFTPFS: Add tests

Update #4666.

[Sebastian Huber <sebastian.huber@…>]

In e38d4f7/rtems:

TFTPFS: Reduce test configuration

Update #4666.

[Sebastian Huber <sebastian.huber@…>]

In 085f363/rtems:

TFTPFS: Fix test configuration for FP targets

The test uses snprintf().

Update #4666.

[Chris Johns]

Has this task been completed?

[Joel Sherrill]

Pinging again. Has this task been completed? If so, please close. If not, will it be done by 6.1?

[Frank Kuehndel]

All three RFCs have been implemented and the tests are also present and working. One additional patch was needed to provide a missing diagram for the documentation:

​https://lists.rtems.org/pipermail/devel/2022-October/073561.html

Moreover, Coverity issues were fixed later on, see #4718.

This work on TFTP is completed and this ticket can be closed.

[Sebastian Huber <sebastian.huber@…>]

In 3626fe8/rtems:

fstests/tftpfs: Fix build dependency

Update #4666.