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authorChen Qi <Qi.Chen@windriver.com>2013-07-19 09:52:25 +0800
committerSaul Wold <sgw@linux.intel.com>2013-07-22 09:44:11 -0700
commit2a57bb7e9a7e154578aa7cb9aeebdf398a54ec00 (patch)
tree8d77b1712e45b21d56d9bcf2f3e7e419931accd0 /meta/classes/useradd_base.bbclass
parent152c973227e41b7736457b7f8c40849cc71b45ca (diff)
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useradd.bbclass: add a new base class and code refactor
Add a new base class, useradd_base.bbclass, which is mainly a collection of basic functions for user/group settings. The useradd_base.bbclass is intended to be inherited by useradd.bbclass and the extrausers.bbclass to avoid code cuplication. [YOCTO #4074] Signed-off-by: Chen Qi <Qi.Chen@windriver.com> Signed-off-by: Saul Wold <sgw@linux.intel.com>
Diffstat (limited to 'meta/classes/useradd_base.bbclass')
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diff --git a/meta/classes/useradd_base.bbclass b/meta/classes/useradd_base.bbclass
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+# This bbclass provides basic functionality for user/group settings.
+# This bbclass is intended to be inherited by useradd.bbclass and
+# extrausers.bbclass.
+
+# The following functions basically have similar logic.
+# *) Perform necessary checks before invoking the actual command
+# *) Invoke the actual command, make retries if necessary
+# *) Error out if an error occurs.
+
+# Note that before invoking these functions, make sure the global variable
+# PSEUDO is set up correctly.
+
+perform_groupadd () {
+ local rootdir="$1"
+ local opts="$2"
+ local retries="$3"
+ bbnote "Performing groupadd with [$opts] and $retries times of retry"
+ local groupname=`echo "$opts" | awk '{ print $NF }'`
+ local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
+ if test "x$group_exists" = "x"; then
+ local count=0
+ while true; do
+ eval $PSEUDO groupadd $opts || true
+ group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
+ if test "x$group_exists" = "x"; then
+ bbwarn "groupadd command did not succeed. Retrying..."
+ sleep 1
+ else
+ break
+ fi
+ count=`expr $count + 1`
+ if test $count = $retries; then
+ bbfatal "Tried running groupadd command $retries times without scucess, giving up"
+ fi
+ done
+ else
+ bbwarn "group $groupname already exists, not re-creating it"
+ fi
+}
+
+perform_useradd () {
+ local rootdir="$1"
+ local opts="$2"
+ local retries="$3"
+ bbnote "Performing useradd with [$opts] and $retries times of retry"
+ local username=`echo "$opts" | awk '{ print $NF }'`
+ local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
+ if test "x$user_exists" = "x"; then
+ local count=0
+ while true; do
+ eval $PSEUDO useradd $opts || true
+ user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
+ if test "x$user_exists" = "x"; then
+ bbwarn "useradd command did not succeed. Retrying..."
+ sleep 1
+ else
+ break
+ fi
+ count=`expr $count + 1`
+ if test $count = $retries; then
+ bbfatal "Tried running useradd command $retries times without scucess, giving up"
+ fi
+ done
+ else
+ bbwarn "user $username already exists, not re-creating it"
+ fi
+}
+
+perform_groupmems () {
+ local rootdir="$1"
+ local opts="$2"
+ local retries="$3"
+ bbnote "Performing groupmems with [$opts] and $retries times of retry"
+ local groupname=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-g" || $i == "--group") print $(i+1) }'`
+ local username=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-a" || $i == "--add") print $(i+1) }'`
+ bbnote "Running groupmems command with group $groupname and user $username"
+ # groupmems fails if /etc/gshadow does not exist
+ local gshadow=""
+ if [ -f $rootdir${sysconfdir}/gshadow ]; then
+ gshadow="yes"
+ else
+ gshadow="no"
+ touch $rootdir${sysconfdir}/gshadow
+ fi
+ local mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
+ if test "x$mem_exists" = "x"; then
+ local count=0
+ while true; do
+ eval $PSEUDO groupmems $opts || true
+ mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
+ if test "x$mem_exists" = "x"; then
+ bbwarn "groupmems command did not succeed. Retrying..."
+ sleep 1
+ else
+ break
+ fi
+ count=`expr $count + 1`
+ if test $count = $retries; then
+ if test "x$gshadow" = "xno"; then
+ rm -f $rootdir${sysconfdir}/gshadow
+ rm -f $rootdir${sysconfdir}/gshadow-
+ fi
+ bbfatal "Tried running groupmems command $retries times without scucess, giving up"
+ fi
+ done
+ else
+ bbwarn "group $groupname already contains $username, not re-adding it"
+ fi
+ if test "x$gshadow" = "xno"; then
+ rm -f $rootdir${sysconfdir}/gshadow
+ rm -f $rootdir${sysconfdir}/gshadow-
+ fi
+}
+
+perform_groupdel () {
+ local rootdir="$1"
+ local opts="$2"
+ local retries="$3"
+ bbnote "Performing groupdel with [$opts] and $retries times of retry"
+ local groupname=`echo "$opts" | awk '{ print $NF }'`
+ local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
+ if test "x$group_exists" != "x"; then
+ local count=0
+ while true; do
+ eval $PSEUDO groupdel $opts || true
+ group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
+ if test "x$group_exists" != "x"; then
+ bbwarn "groupdel command did not succeed. Retrying..."
+ sleep 1
+ else
+ break
+ fi
+ count=`expr $count + 1`
+ if test $count = $retries; then
+ bbfatal "Tried running groupdel command $retries times without scucess, giving up"
+ fi
+ done
+ else
+ bbwarn "group $groupname doesn't exist, not removing it"
+ fi
+}
+
+perform_userdel () {
+ local rootdir="$1"
+ local opts="$2"
+ local retries="$3"
+ bbnote "Performing userdel with [$opts] and $retries times of retry"
+ local username=`echo "$opts" | awk '{ print $NF }'`
+ local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
+ if test "x$user_exists" != "x"; then
+ local count=0
+ while true; do
+ eval $PSEUDO userdel $opts || true
+ user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
+ if test "x$user_exists" != "x"; then
+ bbwarn "userdel command did not succeed. Retrying..."
+ sleep 1
+ else
+ break
+ fi
+ count=`expr $count + 1`
+ if test $count = $retries; then
+ bbfatal "Tried running userdel command $retries times without scucess, giving up"
+ fi
+ done
+ else
+ bbwarn "user $username doesn't exist, not removing it"
+ fi
+}
+
+perform_groupmod () {
+ # Other than the return value of groupmod, there's no simple way to judge whether the command
+ # succeeds, so we disable -e option temporarily
+ set +e
+ local rootdir="$1"
+ local opts="$2"
+ local retries="$3"
+ bbnote "Performing groupmod with [$opts] and $retries times of retry"
+ local groupname=`echo "$opts" | awk '{ print $NF }'`
+ local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
+ if test "x$group_exists" != "x"; then
+ local count=0
+ while true; do
+ eval $PSEUDO groupmod $opts
+ if test $? != 0; then
+ bbwarn "groupmod command did not succeed. Retrying..."
+ sleep 1
+ else
+ break
+ fi
+ count=`expr $count + 1`
+ if test $count = $retries; then
+ bbfatal "Tried running groupmod command $retries times without scucess, giving up"
+ fi
+ done
+ else
+ bbwarn "group $groupname doesn't exist, unable to modify it"
+ fi
+ set -e
+}
+
+perform_usermod () {
+ # Same reason with groupmod, temporarily disable -e option
+ set +e
+ local rootdir="$1"
+ local opts="$2"
+ local retries="$3"
+ bbnote "Performing usermod with [$opts] and $retries times of retry"
+ local username=`echo "$opts" | awk '{ print $NF }'`
+ local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
+ if test "x$user_exists" != "x"; then
+ local count=0
+ while true; do
+ eval $PSEUDO usermod $opts
+ if test $? != 0; then
+ bbwarn "usermod command did not succeed. Retrying..."
+ sleep 1
+ else
+ break
+ fi
+ count=`expr $count + 1`
+ if test $count = $retries; then
+ bbfatal "Tried running usermod command $retries times without scucess, giving up"
+ fi
+ done
+ else
+ bbwarn "user $username doesn't exist, unable to modify it"
+ fi
+ set -e
+}