| 1 |
On 12/15/2017 06:09 AM, Robert Sharp wrote: |
| 2 |
> |
| 3 |
> MISSING="berkdb gdbm tcpd ptpax session dri urandom" |
| 4 |
> |
| 5 |
> Is this a deliberate change or are they actually missing? |
| 6 |
> |
| 7 |
|
| 8 |
These are all intentional, but perhaps with an unintended side effect. |
| 9 |
The default/linux profile sets, |
| 10 |
|
| 11 |
USE="berkdb crypt ipv6 ncurses nls pam readline ssl tcpd zlib" |
| 12 |
... |
| 13 |
USE="${USE} cli pcre session" |
| 14 |
|
| 15 |
Most of those flags are unnecessary, so the hardened profile disables |
| 16 |
them (to reduce the surface area for attack): |
| 17 |
|
| 18 |
# Default starting set of USE flags for all default/linux profiles. |
| 19 |
# We unset them so we get a clean use flag profile. |
| 20 |
USE="${USE} -berkdb -gdbm -tcpd" |
| 21 |
USE="${USE} -fortran" |
| 22 |
USE="${USE} -cli -session" |
| 23 |
USE="${USE} -dri" |
| 24 |
USE="${USE} -modules" |
| 25 |
|
| 26 |
What that's trying to accomplish is to undo the overzealous USE in the |
| 27 |
default/linux profile, but unfortunately, the "-foo" flags (with the |
| 28 |
default stacking order in portage) will override the IUSE="+foo" |
| 29 |
defaults set in the ebuilds themselves. So, for example, dev-lang/php |
| 30 |
sets IUSE="+cli +session", but they'll be disabled when using the |
| 31 |
hardened profile. |
| 32 |
|
| 33 |
USE=ptpax is something else entirely. By now, everyone should be using |
| 34 |
the default xattr markings with PAX_MARKINGS=XT in make.conf (the new |
| 35 |
profile does this for you). USE=ptpax was dropped by default because you |
| 36 |
shouldn't need it any more. |
| 37 |
|
| 38 |
At least for "modules" and "session", we will eventually drop them as |
| 39 |
defaults so that everything works right again: |
| 40 |
|
| 41 |
* https://bugs.gentoo.org/635720 (modules) |
| 42 |
* https://bugs.gentoo.org/635742 (session) |
Archives