- Use an allocation of 65536 uids and gids to allow for POSIX-compliant
user owned namespaces.
- Don't allocate a uid/gid map to system users.
Unfortunately checking for --system isn't quite enough as some
distribution wrappers always call useradd without --system and take care
of choosing a uid and gid themselves, so also check whether the
requested uid/gid is in the user range.
This is taken from a patch I wrote for Ubuntu a couple years ago and
which somehow didn't make it upstream.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
These files list the set of subordinate uids and gids that users are allowed
to use. The expect use case is with the user namespace but other uses are
allowed.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
to create a home directory for new users.
* src/useradd.c, man/useradd.8.xml: New -M/--no-create-home option
and CREATE_HOME usage. System accounts are not impacted by
CREATE_HOME.
* man/useradd.8.xml: Indicate that a new group is created by
default.
* src/useradd.c: Removed TODO item (moved to the TODO file).
encryption algorithm is chosen for the passwords. Document the new
-c and -s options. Add a reference to login.defs(5).
* man/login.defs.5.xml: Document the ENCRYPT_METHOD,
MD5_CRYPT_ENAB, SHA_CRYPT_MIN_ROUNDS, and SHA_CRYPT_MAX_ROUNDS
variables.
* etc/login.defs: Indicate that MD5_CRYPT_ENAB is deprecated.
Document the relationship with PAM for MD5_CRYPT_ENAB and
ENCRYPT_METHOD.
bytes).
* lib/getdef.c, etc/login.defs: Add definitions for
SHA_CRYPT_MIN_ROUNDS and SHA_CRYPT_MAX_ROUNDS.
* libmisc/salt.c: Use SHA_CRYPT_MIN_ROUNDS and SHA_CRYPT_MAX_ROUNDS
to add a random number of rounds if needed.
shadow-4.0.18.1-sha256.patch. Thanks to Peter Vrabec. Hardly no changes
except re-indent and changes related to recent modifications (max_salt_len
in crypt_make_salt). Changes in lib/defines.h not applied (definition of
ENCRYPTMETHOD_SELECT). I will add a configure check or flag.
