CVS log for src/etc/security

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Default branch: MAIN
Current tag: cjep_staticlib_x

Revision 1.128 / (download) - annotate - [select for diffs], Sun Jan 10 23:24:25 2021 UTC (3 years, 3 months ago) by riastradh
Branch: MAIN
CVS Tags: cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x
Changes since 1.127: +14 -1 lines
Diff to previous 1.127 (colored)

Various entropy integration improvements.

- New /etc/security check for entropy in daily security report.

- New /etc/rc.d/entropy script runs (after random_seed and rndctl) to
  check for entropy at boot -- in rc.conf, you can:

  . set `entropy=check' to halt multiuser boot and enter single-user
    mode if not enough entropy

  . set `entropy=wait' to make multiuser boot wait until enough entropy

  Default is to always boot without waiting -- and rely on other
  channels like security report to alert the operator if there's a
  problem.

- New man page entropy(7) discussing the higher-level concepts and
  system integration with cross-references.

- New paragraph in afterboot(8) about entropy citing entropy(7) for
  more details.

This change addresses many of the issues discussed in security/55659.
This is a first draft; happy to take improvements to the man pages and
scripted messages to improve clarity.

I considered changing motd to include an entropy warning with a
reference to the entropy(7) man page, but it's a little trickier:
- Not sure it's appropriate for all users to see at login rather than
  users who have power to affect the entropy estimate (maybe it is,
  just haven't decided).
- We only have a mechanism for changing once at boot; the message would
  remain until next boot even if an operator adds enough entropy.
- The mechanism isn't really conducive to making a message appear
  conditionally from boot to boot.

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