meta-agl/classes/useradd_base.bbclass

   1 # This bbclass provides basic functionality for user/group settings.
   2 # This bbclass is intended to be inherited by useradd.bbclass and
   3 # extrausers.bbclass.
   4
   5 # The following functions basically have similar logic.
   6 # *) Perform necessary checks before invoking the actual command
   7 # *) Invoke the actual command with flock
   8 # *) Error out if an error occurs.
   9
  10 # Note that before invoking these functions, make sure the global variable
  11 # PSEUDO is set up correctly.
  12
  13 perform_groupadd () {
  14         local rootdir="$1"
  15         local opts="$2"
  16         bbnote "${PN}: Performing groupadd with [$opts]"
  17         local groupname=`echo "$opts" | awk '{ print $NF }'`
  18         local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
  19         if test "x$group_exists" = "x"; then
  20                 eval flock -x $rootdir${sysconfdir} -c \"$PSEUDO groupadd \$opts\" || true
  21                 group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
  22                 if test "x$group_exists" = "x"; then
  23                         bbfatal "${PN}: groupadd command did not succeed."
  24                 fi
  25         else
  26                 bbnote "${PN}: group $groupname already exists, not re-creating it"
  27         fi
  28 }
  29
  30 perform_useradd () {
  31         local rootdir="$1"
  32         local opts="$2"
  33         bbnote "${PN}: Performing useradd with [$opts]"
  34         local username=`echo "$opts" | awk '{ print $NF }'`
  35         local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
  36         if test "x$user_exists" = "x"; then
  37                 eval flock -x $rootdir${sysconfdir} -c  \"$PSEUDO useradd \$opts\" || true
  38                 user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
  39                 if test "x$user_exists" = "x"; then
  40                         bbfatal "${PN}: useradd command did not succeed."
  41                 fi
  42         else
  43                 bbnote "${PN}: user $username already exists, not re-creating it"
  44         fi
  45 }
  46
  47 perform_groupmems () {
  48         local rootdir="$1"
  49         local opts="$2"
  50         bbnote "${PN}: Performing groupmems with [$opts]"
  51         local groupname=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-g" || $i == "--group") print $(i+1) }'`
  52         local username=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-a" || $i == "--add") print $(i+1) }'`
  53         bbnote "${PN}: Running groupmems command with group $groupname and user $username"
  54         local mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
  55         if test "x$mem_exists" = "x"; then
  56                 eval flock -x $rootdir${sysconfdir} -c \"$PSEUDO groupmems \$opts\" || true
  57                 mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
  58                 if test "x$mem_exists" = "x"; then
  59                         bbfatal "${PN}: groupmems command did not succeed."
  60                 fi
  61         else
  62                 bbnote "${PN}: group $groupname already contains $username, not re-adding it"
  63         fi
  64 }
  65
  66 perform_groupdel () {
  67         local rootdir="$1"
  68         local opts="$2"
  69         bbnote "${PN}: Performing groupdel with [$opts]"
  70         local groupname=`echo "$opts" | awk '{ print $NF }'`
  71         local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
  72         if test "x$group_exists" != "x"; then
  73                 eval flock -x $rootdir${sysconfdir} -c \"$PSEUDO groupdel \$opts\" || true
  74                 group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
  75                 if test "x$group_exists" != "x"; then
  76                         bbfatal "${PN}: groupdel command did not succeed."
  77                 fi
  78         else
  79                 bbnote "${PN}: group $groupname doesn't exist, not removing it"
  80         fi
  81 }
  82
  83 perform_userdel () {
  84         local rootdir="$1"
  85         local opts="$2"
  86         bbnote "${PN}: Performing userdel with [$opts]"
  87         local username=`echo "$opts" | awk '{ print $NF }'`
  88         local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
  89         if test "x$user_exists" != "x"; then
  90                 eval flock -x $rootdir${sysconfdir} -c \"$PSEUDO userdel \$opts\" || true
  91                 user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
  92                 if test "x$user_exists" != "x"; then
  93                         bbfatal "${PN}: userdel command did not succeed."
  94                 fi
  95         else
  96                 bbnote "${PN}: user $username doesn't exist, not removing it"
  97         fi
  98 }
  99
 100 perform_groupmod () {
 101         # Other than the return value of groupmod, there's no simple way to judge whether the command
 102         # succeeds, so we disable -e option temporarily
 103         set +e
 104         local rootdir="$1"
 105         local opts="$2"
 106         bbnote "${PN}: Performing groupmod with [$opts]"
 107         local groupname=`echo "$opts" | awk '{ print $NF }'`
 108         local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
 109         if test "x$group_exists" != "x"; then
 110                 eval flock -x $rootdir${sysconfdir} -c \"$PSEUDO groupmod \$opts\"
 111                 if test $? != 0; then
 112                         bbwarn "${PN}: groupmod command did not succeed."
 113                 fi
 114         else
 115                 bbwarn "${PN}: group $groupname doesn't exist, unable to modify it"
 116         fi
 117         set -e
 118 }
 119
 120 perform_usermod () {
 121         # Same reason with groupmod, temporarily disable -e option
 122         set +e
 123         local rootdir="$1"
 124         local opts="$2"
 125         bbnote "${PN}: Performing usermod with [$opts]"
 126         local username=`echo "$opts" | awk '{ print $NF }'`
 127         local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
 128         if test "x$user_exists" != "x"; then
 129                 eval flock -x $rootdir${sysconfdir} -c \"$PSEUDO usermod \$opts\"
 130                 if test $? != 0; then
 131                         bbfatal "${PN}: usermod command did not succeed."
 132                 fi
 133         else
 134                 bbwarn "${PN}: user $username doesn't exist, unable to modify it"
 135         fi
 136         set -e
 137 }