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On Fri, 2021-01-08 at 23:45 +0100, Thomas Deutschmann wrote: |
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> In some setups where users are changed/managed not only via ebuilds, |
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> for example through configuration management systems, it could be |
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> problematic if acct-user.eclass will restore user/group settings |
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> to values set in ebuild. |
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> |
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> Setting ACCT_USER_NO_MODIFY to a non-zero value will allow system |
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> administrator to disable modification of any existing user. |
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> |
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> Note: Lock/unlock when acct-* package will be installed/removed |
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> will still happen. |
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> |
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> Signed-off-by: Thomas Deutschmann <whissi@g.o> |
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> --- |
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> |
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> v3: |
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> - Fixed eclass documentation |
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> - Honor 80 chars limit |
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> - Prefixed internal variable ACCT_USER_ALREADY_EXISTS |
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> |
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> eclass/acct-user.eclass | 27 +++++++++++++++++++++++++++ |
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> 1 file changed, 27 insertions(+) |
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> |
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> diff --git a/eclass/acct-user.eclass b/eclass/acct-user.eclass |
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> index 47890e48409a..dcda661d39ea 100644 |
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> --- a/eclass/acct-user.eclass |
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> +++ b/eclass/acct-user.eclass |
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> @@ -72,6 +72,11 @@ readonly ACCT_USER_NAME |
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> # Overlays should set this to -1 to dynamically allocate UID. Using -1 |
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> # in ::gentoo is prohibited by policy. |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> +# @ECLASS-VARIABLE: _ACCT_USER_ALREADY_EXISTS |
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> +# @INTERNAL |
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> +# @DESCRIPTION: |
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> +# Status variable which indicates if user already exists. |
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> + |
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> # @ECLASS-VARIABLE: ACCT_USER_ENFORCE_ID |
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> # @DESCRIPTION: |
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> # If set to a non-null value, the eclass will require the user to have |
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> @@ -79,6 +84,13 @@ readonly ACCT_USER_NAME |
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> # the UID is taken by another user, the install will fail. |
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> : ${ACCT_USER_ENFORCE_ID:=} |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> +# @ECLASS-VARIABLE: ACCT_USER_NO_MODIFY |
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> +# @DEFAULT_UNSET |
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> +# @DESCRIPTION: |
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> +# If set to a non-null value, the eclass will not make any changes |
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> +# to an already existing user. |
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> +: ${ACCT_USER_NO_MODIFY:=} |
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> + |
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> # @ECLASS-VARIABLE: ACCT_USER_SHELL |
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> # @DESCRIPTION: |
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> # The shell to use for the user. If not specified, a 'nologin' variant |
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> @@ -344,6 +356,13 @@ acct-user_src_install() { |
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> acct-user_pkg_preinst() { |
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> debug-print-function ${FUNCNAME} "${@}" |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> + # check if user already exists |
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> + _ACCT_USER_ALREADY_EXISTS= |
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> + if [[ -n $(egetent passwd "${ACCT_USER_NAME}") ]]; then |
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> + _ACCT_USER_ALREADY_EXISTS=yes |
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|
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=1 is used elsewhere in the eclass. |
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|
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> + fi |
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> + readonly _ACCT_USER_ALREADY_EXISTS |
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> + |
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> local groups=${ACCT_USER_GROUPS[*]} |
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> enewuser ${ACCT_USER_ENFORCE_ID:+-F} -M "${ACCT_USER_NAME}" \ |
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> "${ACCT_USER_ID}" "${ACCT_USER_SHELL}" "${ACCT_USER_HOME}" \ |
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> @@ -379,6 +398,14 @@ acct-user_pkg_postinst() { |
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> return 0 |
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> fi |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> |
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> + if [[ -n ${ACCT_USER_NO_MODIFY} && -n ${_ACCT_USER_ALREADY_EXISTS} ]] ; then |
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|
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Nit: inconsistent style of ']];'. |
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|
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> + eunlockuser "${ACCT_USER_NAME}" |
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> + |
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> + ewarn "User ${ACCT_USER_NAME} already exists; Not touching existing user" |
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> + ewarn "due to set ACCT_USER_NO_MODIFY." |
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> + return 0 |
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> + fi |
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> + |
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> # NB: eset* functions check current value |
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> esethome "${ACCT_USER_NAME}" "${ACCT_USER_HOME}" |
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> esetshell "${ACCT_USER_NAME}" "${ACCT_USER_SHELL}" |
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|
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-- |
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Best regards, |
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Michał Górny |