linguini1 commented on code in PR #18396:
URL: https://github.com/apache/nuttx/pull/18396#discussion_r2809657083
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Documentation/platforms/sim/sim/boards/sim/index.rst:
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@@ -2008,24 +2008,22 @@ mounted at ``/etc`` and will look like this at run-time:
nsh>
``/etc/init.d/rc.sysinit`` is system init script; ``/etc/init.d/rcS`` is the
-start-up script; ``/etc/passwd`` is a the password file. It supports a single
-user:
+start-up script; ``/etc/passwd`` is the password file.
-.. code:: text
-
- USERNAME: admin
- PASSWORD: Administrator
-
-.. code:: console
+The ``/etc/passwd`` file is auto-generated at build time when
+``CONFIG_ETC_ROMFS_GENPASSWD`` is enabled. To configure the admin user and
+password, run ``make menuconfig`` and set:
- nsh> cat /etc/passwd
- admin:8Tv+Hbmr3pLVb5HHZgd26D:0:0:/
+* ``CONFIG_ETC_ROMFS_GENPASSWD=y``
+* ``CONFIG_ETC_ROMFS_PASSWD_USER`` (default: ``admin``)
+* ``CONFIG_ETC_ROMFS_PASSWD_PASSWORD`` (required, build fails if empty)
-The encrypted passwords in the provided passwd file are only valid if the
-TEA key is set to: 012345678 9abcdef0 012345678 9abcdef0.
+The password is hashed with TEA at build time using
+``tools/mkpasswd.py``; the plaintext is **not** stored in the firmware.
Review Comment:
Not critical, but maybe this documentation which is repeated for multiple
boards could be put somewhere common (i.e. a page about password usage) and
then linked to from these boards instead.
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