From: Scott Garman <scott.a.gar...@intel.com>
This class is to be used by recipes that need to set up specific
user/group accounts and set custom file/directory permissions.
Signed-off-by: Scott Garman <scott.a.gar...@intel.com>
---
meta/classes/useradd.bbclass | 163 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 163 insertions(+), 0 deletions(-)
create mode 100644 meta/classes/useradd.bbclass
diff --git a/meta/classes/useradd.bbclass b/meta/classes/useradd.bbclass
new file mode 100644
index 0000000..3f07e5e
--- /dev/null
+++ b/meta/classes/useradd.bbclass
@@ -0,0 +1,163 @@
+USERADDPN ?= "${PN}"
+
+# base-passwd-cross provides the default passwd and group files in the
+# target sysroot, and shadow-native provides the utilities needed to
+# add and modify user and group accounts
+DEPENDS_append = " base-passwd shadow-native"
+RDEPENDS_${USERADDPN}_append = " base-passwd shadow"
+
+PSEUDO="${STAGING_DIR_NATIVE}/usr/bin/pseudo"
+export PSEUDO
+PSEUDO_LOCALSTATEDIR="${STAGING_DIR_TARGET}/var/pseudo"
+export PSEUDO_LOCALSTATEDIR
+PSEUDO_PASSWD = "${STAGING_DIR_TARGET}"
+export PSEUDO_PASSWD
+
+useradd_preinst () {
+OPT=""
+SYSROOT=""
+
+if test "x$D" != "x"; then
+ # Installing into a sysroot
+ SYSROOT="${STAGING_DIR_TARGET}"
+ OPT="--root ${STAGING_DIR_TARGET}"
+
+ # Add groups and users defined for all recipe packages
+ GROUPADD_PARAM="${@get_all_cmd_params(d, 'group')}"
+ USERADD_PARAM="${@get_all_cmd_params(d, 'user')}"
+else
+ # Installing onto a target
+ PSEUDO=""
+
+ # Add groups and users defined only for this package
+ GROUPADD_PARAM="${GROUPADD_PARAM}"
+ USERADD_PARAM="${USERADD_PARAM}"
+fi
+
+# Perform group additions first, since user additions may depend
+# on these groups existing
+if test "x$GROUPADD_PARAM" != "x"; then
+ echo "Running groupadd commands..."
+ # Invoke multiple instances of groupadd for parameter lists
+ # separated by ';'
+ opts=`echo "$GROUPADD_PARAM" | cut -d ';' -f 1`
+ remaining=`echo "$GROUPADD_PARAM" | cut -d ';' -f 2-`
+ while test "x$opts" != "x"; do
+ eval $PSEUDO groupadd -f $OPT $opts
+
+ if test "x$opts" = "x$remaining"; then
+ break
+ fi
+ opts=`echo "$remaining" | cut -d ';' -f 1`
+ remaining=`echo "$remaining" | cut -d ';' -f 2-`
+ done
+fi
+
+if test "x$USERADD_PARAM" != "x"; then
+ echo "Running useradd commands..."
+ # Invoke multiple instances of useradd for parameter lists
+ # separated by ';'
+ opts=`echo "$USERADD_PARAM" | cut -d ';' -f 1`
+ remaining=`echo "$USERADD_PARAM" | cut -d ';' -f 2-`
+ while test "x$opts" != "x"; do
+ # useradd does not have a -f option, so we have to check if the
+ # username already exists manually
+ username=`echo "$opts" | awk '{ print $NF }'`
+ user_exists=`grep "^$username:" $SYSROOT/etc/passwd || true`
+ if test "x$user_exists" = "x"; then
+ eval $PSEUDO useradd $OPT $opts
+ else
+ echo "Note: username $username already exists, not
re-creating it"
+ fi
+
+ if test "x$opts" = "x$remaining"; then
+ break
+ fi
+ opts=`echo "$remaining" | cut -d ';' -f 1`
+ remaining=`echo "$remaining" | cut -d ';' -f 2-`
+ done
+fi
+}
+
+useradd_sysroot () {
+ # Explicitly set $D since it isn't set to anything
+ # before do_install
+ D=${D}
+ useradd_preinst
+}
+
+useradd_sysroot_sstate () {
+ if [ "${BB_CURRENTTASK}" = "populate_sysroot_setscene" ]
+ then
+ useradd_sysroot
+ fi
+}
+
+do_install[prefuncs] += "useradd_sysroot"
+SSTATEPOSTINSTFUNCS += "useradd_sysroot_sstate"
+
+# Recipe parse-time sanity checks
+def update_useradd_after_parse(d):
+ if bb.data.getVar('USERADD_PACKAGES', d) == None:
+ if bb.data.getVar('USERADD_PARAM', d) == None and
bb.data.getVar('GROUPADD_PARAM', d) == None:
+ raise bb.build.FuncFailed, "%s inherits useradd but
doesn't set USERADD_PARAM or GROUPADD_PARAM" % bb.data.getVar('FILE', d)
+
+python __anonymous() {
+ update_useradd_after_parse(d)
+}
+
+# Return a single [GROUP|USER]ADD_PARAM formatted string which includes the
+# [group|user]add parameters for all packages in this recipe
+def get_all_cmd_params(d, cmd_type):
+ import string
+
+ localdata = bb.data.createCopy(d)
+ param_type = cmd_type.upper() + "ADD_PARAM_%s"
+ params = []
+
+ pkgs = bb.data.getVar('USERADD_PACKAGES', d, 1)
+ if pkgs == None:
+ pkgs = bb.data.getVar('USERADDPN', d, 1)
+ packages = (bb.data.getVar('PACKAGES', d, 1) or "").split()
+ if not pkgs in packages and packages != []:
+ pkgs = packages[0]
+
+ for pkg in pkgs.split():
+ param = bb.data.getVar(param_type % pkg, localdata, 1)
+ params.append(param)
+
+ return string.join(params, "; ")
+
+# Adds the preinst script into generated packages
+fakeroot python populate_packages_prepend () {
+ def update_useradd_package(pkg):
+ bb.debug(1, 'adding user/group calls to preinst for %s' % pkg)
+ localdata = bb.data.createCopy(d)
+ overrides = bb.data.getVar("OVERRIDES", localdata, 1)
+ bb.data.setVar("OVERRIDES", "%s:%s" % (pkg, overrides),
localdata)
+ bb.data.update_data(localdata)
+
+ """
+ useradd preinst is appended here because pkg_preinst may be
+ required to execute on the target. Not doing so may cause
+ useradd preinst to be invoked twice, causing unwanted warnings.
+ """
+ preinst = bb.data.getVar('pkg_preinst', localdata, 1)
+ if not preinst:
+ preinst = '#!/bin/sh\n'
+ preinst += bb.data.getVar('useradd_preinst', localdata, 1)
+ bb.data.setVar('pkg_preinst_%s' % pkg, preinst, d)
+
+ # We add the user/group calls to all packages to allow any package
+ # to contain files owned by the users/groups defined in the recipe.
+ # The user/group addition code is careful not to create duplicate
+ # entries, so this is safe.
+ pkgs = bb.data.getVar('USERADD_PACKAGES', d, 1)
+ if pkgs == None:
+ pkgs = bb.data.getVar('USERADDPN', d, 1)
+ packages = (bb.data.getVar('PACKAGES', d, 1) or "").split()
+ if not pkgs in packages and packages != []:
+ pkgs = packages[0]
+ for pkg in pkgs.split():
+ update_useradd_package(pkg)
+}
--
1.7.3.4
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