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authorMarkus Lehtonen <markus.lehtonen@linux.intel.com>2016-01-08 17:15:42 +0200
committerMarkus Lehtonen <markus.lehtonen@linux.intel.com>2016-01-25 14:12:36 +0200
commitb96cd570e1709d52b04094b5b01fbf20c1f326d9 (patch)
treee8e278c1aa5c79b4e385c6d36540a84fd14083d6
parentbf6372fc361e7588e95f682103332d7a7159c851 (diff)
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New lib module for handling GPG signing
Add a new Python module (oe.gpg_sign) for handling GPG signing operations, i.e. currently package and package feed signing. The purpose is to be able to more easily support various signing backends and to be able to centralise signing functionality into one place (e.g. package signing and sstate signing). Currently, only local signing with gpg is implemented. [YOCTO #8755] Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
-rw-r--r--meta/classes/sign_package_feed.bbclass6
-rw-r--r--meta/classes/sign_rpm.bbclass47
-rw-r--r--meta/lib/oe/gpg_sign.py76
-rw-r--r--meta/lib/oe/package_manager.py31
-rw-r--r--meta/recipes-core/meta/signing-keys.bb26
5 files changed, 116 insertions, 70 deletions
diff --git a/meta/classes/sign_package_feed.bbclass b/meta/classes/sign_package_feed.bbclass
index d89bc0b195..d5df8afb9f 100644
--- a/meta/classes/sign_package_feed.bbclass
+++ b/meta/classes/sign_package_feed.bbclass
@@ -6,6 +6,10 @@
# Path to a file containing the passphrase of the signing key.
# PACKAGE_FEED_GPG_NAME
# Name of the key to sign with. May be key id or key name.
+# PACKAGE_FEED_GPG_BACKEND
+# Optional variable for specifying the backend to use for signing.
+# Currently the only available option is 'local', i.e. local signing
+# on the build host.
# GPG_BIN
# Optional variable for specifying the gpg binary/wrapper to use for
# signing.
@@ -15,6 +19,8 @@
inherit sanity
PACKAGE_FEED_SIGN = '1'
+PACKAGE_FEED_GPG_BACKEND ?= 'local'
+
python () {
# Check sanity of configuration
diff --git a/meta/classes/sign_rpm.bbclass b/meta/classes/sign_rpm.bbclass
index 7906b6413b..8bcabeec91 100644
--- a/meta/classes/sign_rpm.bbclass
+++ b/meta/classes/sign_rpm.bbclass
@@ -5,6 +5,10 @@
# Path to a file containing the passphrase of the signing key.
# RPM_GPG_NAME
# Name of the key to sign with. May be key id or key name.
+# RPM_GPG_BACKEND
+# Optional variable for specifying the backend to use for signing.
+# Currently the only available option is 'local', i.e. local signing
+# on the build host.
# GPG_BIN
# Optional variable for specifying the gpg binary/wrapper to use for
# signing.
@@ -14,6 +18,7 @@
inherit sanity
RPM_SIGN_PACKAGES='1'
+RPM_GPG_BACKEND ?= 'local'
python () {
@@ -27,47 +32,17 @@ python () {
'RPM-GPG-PUBKEY'))
}
-
-def rpmsign_wrapper(d, files, passphrase, gpg_name=None):
- import pexpect
-
- # Find the correct rpm binary
- rpm_bin_path = d.getVar('STAGING_BINDIR_NATIVE', True) + '/rpm'
- cmd = rpm_bin_path + " --addsign --define '_gpg_name %s' " % gpg_name
- if d.getVar('GPG_BIN', True):
- cmd += "--define '%%__gpg %s' " % d.getVar('GPG_BIN', True)
- if d.getVar('GPG_PATH', True):
- cmd += "--define '_gpg_path %s' " % d.getVar('GPG_PATH', True)
- cmd += ' '.join(files)
-
- # Need to use pexpect for feeding the passphrase
- proc = pexpect.spawn(cmd)
- try:
- proc.expect_exact('Enter pass phrase:', timeout=15)
- proc.sendline(passphrase)
- proc.expect(pexpect.EOF, timeout=900)
- proc.close()
- except pexpect.TIMEOUT as err:
- bb.warn('rpmsign timeout: %s' % err)
- proc.terminate()
- else:
- if os.WEXITSTATUS(proc.status) or not os.WIFEXITED(proc.status):
- bb.warn('rpmsign failed: %s' % proc.before.strip())
- return proc.exitstatus
-
-
python sign_rpm () {
import glob
+ from oe.gpg_sign import get_signer
- with open(d.getVar("RPM_GPG_PASSPHRASE_FILE", True)) as fobj:
- rpm_gpg_passphrase = fobj.readlines()[0].rstrip('\n')
-
- rpm_gpg_name = (d.getVar("RPM_GPG_NAME", True) or "")
-
+ signer = get_signer(d,
+ d.getVar('RPM_GPG_BACKEND', True),
+ d.getVar('RPM_GPG_NAME', True),
+ d.getVar('RPM_GPG_PASSPHRASE_FILE', True))
rpms = glob.glob(d.getVar('RPM_PKGWRITEDIR', True) + '/*')
- if rpmsign_wrapper(d, rpms, rpm_gpg_passphrase, rpm_gpg_name) != 0:
- raise bb.build.FuncFailed("RPM signing failed")
+ signer.sign_rpms(rpms)
}
do_package_index[depends] += "signing-keys:do_export_public_keys"
diff --git a/meta/lib/oe/gpg_sign.py b/meta/lib/oe/gpg_sign.py
new file mode 100644
index 0000000000..55abad8ffc
--- /dev/null
+++ b/meta/lib/oe/gpg_sign.py
@@ -0,0 +1,76 @@
+"""Helper module for GPG signing"""
+import os
+
+import bb
+import oe.utils
+
+class LocalSigner(object):
+ """Class for handling local (on the build host) signing"""
+ def __init__(self, d, keyid, passphrase_file):
+ self.keyid = keyid
+ self.passphrase_file = passphrase_file
+ self.gpg_bin = d.getVar('GPG_BIN', True) or \
+ bb.utils.which(os.getenv('PATH'), 'gpg')
+ self.gpg_path = d.getVar('GPG_PATH', True)
+ self.rpm_bin = bb.utils.which(os.getenv('PATH'), "rpm")
+
+ def export_pubkey(self, output_file):
+ """Export GPG public key to a file"""
+ cmd = '%s --batch --yes --export --armor -o %s ' % \
+ (self.gpg_bin, output_file)
+ if self.gpg_path:
+ cmd += "--homedir %s " % self.gpg_path
+ cmd += self.keyid
+ status, output = oe.utils.getstatusoutput(cmd)
+ if status:
+ raise bb.build.FuncFailed('Failed to export gpg public key (%s): %s' %
+ (self.keyid, output))
+
+ def sign_rpms(self, files):
+ """Sign RPM files"""
+ import pexpect
+
+ cmd = self.rpm_bin + " --addsign --define '_gpg_name %s' " % self.keyid
+ if self.gpg_bin:
+ cmd += "--define '%%__gpg %s' " % self.gpg_bin
+ if self.gpg_path:
+ cmd += "--define '_gpg_path %s' " % self.gpg_path
+ cmd += ' '.join(files)
+
+ # Need to use pexpect for feeding the passphrase
+ proc = pexpect.spawn(cmd)
+ try:
+ proc.expect_exact('Enter pass phrase:', timeout=15)
+ with open(self.passphrase_file) as fobj:
+ proc.sendline(fobj.readline().rstrip('\n'))
+ proc.expect(pexpect.EOF, timeout=900)
+ proc.close()
+ except pexpect.TIMEOUT as err:
+ bb.error('rpmsign timeout: %s' % err)
+ proc.terminate()
+ if os.WEXITSTATUS(proc.status) or not os.WIFEXITED(proc.status):
+ bb.error('rpmsign failed: %s' % proc.before.strip())
+ raise bb.build.FuncFailed("Failed to sign RPM packages")
+
+ def detach_sign(self, input_file):
+ """Create a detached signature of a file"""
+ cmd = "%s --detach-sign --armor --batch --no-tty --yes " \
+ "--passphrase-file '%s' -u '%s' " % \
+ (self.gpg_bin, self.passphrase_file, self.keyid)
+ if self.gpg_path:
+ gpg_cmd += "--homedir %s " % self.gpg_path
+ cmd += input_file
+ status, output = oe.utils.getstatusoutput(cmd)
+ if status:
+ raise bb.build.FuncFailed("Failed to create signature for '%s': %s" %
+ (input_file, output))
+
+
+def get_signer(d, backend, keyid, passphrase_file):
+ """Get signer object for the specified backend"""
+ # Use local signing by default
+ if backend == 'local':
+ return LocalSigner(d, keyid, passphrase_file)
+ else:
+ bb.fatal("Unsupported signing backend '%s'" % backend)
+
diff --git a/meta/lib/oe/package_manager.py b/meta/lib/oe/package_manager.py
index 5b87f45127..3f9e4e3b60 100644
--- a/meta/lib/oe/package_manager.py
+++ b/meta/lib/oe/package_manager.py
@@ -9,6 +9,7 @@ import bb
import tempfile
import oe.utils
import string
+from oe.gpg_sign import get_signer
# this can be used by all PM backends to create the index files in parallel
def create_index(arg):
@@ -109,16 +110,14 @@ class RpmIndexer(Indexer):
rpm_createrepo = bb.utils.which(os.getenv('PATH'), "createrepo")
if self.d.getVar('PACKAGE_FEED_SIGN', True) == '1':
- pkgfeed_gpg_name = self.d.getVar('PACKAGE_FEED_GPG_NAME', True)
- pkgfeed_gpg_pass = self.d.getVar('PACKAGE_FEED_GPG_PASSPHRASE_FILE', True)
+ signer = get_signer(self.d,
+ self.d.getVar('PACKAGE_FEED_GPG_BACKEND', True),
+ self.d.getVar('PACKAGE_FEED_GPG_NAME', True),
+ self.d.getVar('PACKAGE_FEED_GPG_PASSPHRASE_FILE', True))
else:
- pkgfeed_gpg_name = None
- pkgfeed_gpg_pass = None
- gpg_bin = self.d.getVar('GPG_BIN', True) or \
- bb.utils.which(os.getenv('PATH'), "gpg")
-
+ signer = None
index_cmds = []
- repo_sign_cmds = []
+ repomd_files = []
rpm_dirs_found = False
for arch in archs:
dbpath = os.path.join(self.d.getVar('WORKDIR', True), 'rpmdb', arch)
@@ -130,15 +129,7 @@ class RpmIndexer(Indexer):
index_cmds.append("%s --dbpath %s --update -q %s" % \
(rpm_createrepo, dbpath, arch_dir))
- if pkgfeed_gpg_name:
- repomd_file = os.path.join(arch_dir, 'repodata', 'repomd.xml')
- gpg_cmd = "%s --detach-sign --armor --batch --no-tty --yes " \
- "--passphrase-file '%s' -u '%s' " % \
- (gpg_bin, pkgfeed_gpg_pass, pkgfeed_gpg_name)
- if self.d.getVar('GPG_PATH', True):
- gpg_cmd += "--homedir %s " % self.d.getVar('GPG_PATH', True)
- gpg_cmd += repomd_file
- repo_sign_cmds.append(gpg_cmd)
+ repomd_files.append(os.path.join(arch_dir, 'repodata', 'repomd.xml'))
rpm_dirs_found = True
@@ -151,9 +142,9 @@ class RpmIndexer(Indexer):
if result:
bb.fatal('%s' % ('\n'.join(result)))
# Sign repomd
- result = oe.utils.multiprocess_exec(repo_sign_cmds, create_index)
- if result:
- bb.fatal('%s' % ('\n'.join(result)))
+ if signer:
+ for repomd in repomd_files:
+ signer.detach_sign(repomd)
# Copy pubkey(s) to repo
distro_version = self.d.getVar('DISTRO_VERSION', True) or "oe.0"
if self.d.getVar('RPM_SIGN_PACKAGES', True) == '1':
diff --git a/meta/recipes-core/meta/signing-keys.bb b/meta/recipes-core/meta/signing-keys.bb
index cc401f3b6c..d7aa79d49f 100644
--- a/meta/recipes-core/meta/signing-keys.bb
+++ b/meta/recipes-core/meta/signing-keys.bb
@@ -20,26 +20,24 @@ do_populate_sysroot[noexec] = "1"
EXCLUDE_FROM_WORLD = "1"
-def export_gpg_pubkey(d, keyid, path):
- import bb
- gpg_bin = d.getVar('GPG_BIN', True) or \
- bb.utils.which(os.getenv('PATH'), "gpg")
- cmd = '%s --batch --yes --export --armor -o %s %s' % \
- (gpg_bin, path, keyid)
- status, output = oe.utils.getstatusoutput(cmd)
- if status:
- raise bb.build.FuncFailed('Failed to export gpg public key (%s): %s' %
- (keyid, output))
python do_export_public_keys () {
+ from oe.gpg_sign import get_signer
+
if d.getVar("RPM_SIGN_PACKAGES", True):
# Export public key of the rpm signing key
- export_gpg_pubkey(d, d.getVar("RPM_GPG_NAME", True),
- d.getVar('RPM_GPG_PUBKEY', True))
+ signer = get_signer(d,
+ d.getVar('RPM_GPG_BACKEND', True),
+ d.getVar('RPM_GPG_NAME', True),
+ d.getVar('RPM_GPG_PASSPHRASE_FILE', True))
+ signer.export_pubkey(d.getVar('RPM_GPG_PUBKEY', True))
if d.getVar('PACKAGE_FEED_SIGN', True) == '1':
# Export public key of the feed signing key
- export_gpg_pubkey(d, d.getVar("PACKAGE_FEED_GPG_NAME", True),
- d.getVar('PACKAGE_FEED_GPG_PUBKEY', True))
+ signer = get_signer(d,
+ d.getVar('PACKAGE_FEED_GPG_BACKEND', True),
+ d.getVar('PACKAGE_FEED_GPG_NAME', True),
+ d.getVar('PACKAGE_FEED_GPG_PASSPHRASE_FILE', True))
+ signer.export_pubkey(d.getVar('PACKAGE_FEED_GPG_PUBKEY', True))
}
addtask do_export_public_keys before do_build