Minimum required opkg version: 3.0 (already in master/jethro).
Add a new bbclass for creating signatures for ipk files.
The signing process is very similar to the existing rpm signing,
but different in some important ways:
- Signatures are stored outside the ipk files, opkg connects
to a feed server and downloads them as separate files which are
used to verify ipk's. These files go everywhere alongside the ipk.
- Signatures can be of two types: binary (.sig) and ascii-armored
(.asc). By default OE and opkg use binary, can be configured by using
IPK_SIGNATURE_TYPE (in OE) and "option signature_type gpg-asc" in
opkg.
- The public key is stored on device and the keyring managed
by the opkg-keyrings package. See its recipe for more details.
Signed-off-by: Ioan-Adrian Ratiu <adrian.ra...@ni.com>
---
meta/classes/package_ipk.bbclass | 6 ++++
meta/classes/sign_ipk.bbclass | 73 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 79 insertions(+)
create mode 100644 meta/classes/sign_ipk.bbclass
diff --git a/meta/classes/package_ipk.bbclass b/meta/classes/package_ipk.bbclass
index 4dd7a7e..c491b67 100644
--- a/meta/classes/package_ipk.bbclass
+++ b/meta/classes/package_ipk.bbclass
@@ -246,6 +246,12 @@ python do_package_ipk () {
bb.utils.unlockfile(lf)
raise bb.build.FuncFailed("opkg-build execution failed")
+ if d.getVar('IPK_SIGN_PACKAGES', True) == '1':
+ ipkver = "%s-%s" % (d.getVar('PKGV'), d.getVar('PKGR'))
+ ipk_to_sign = "%s/%s_%s_%s.ipk" % (pkgoutdir, pkgname, ipkver,
d.getVar('PACKAGE_ARCH', True))
+ d.setVar('IPK_TO_SIGN', ipk_to_sign)
+ bb.build.exec_func("sign_ipk", d)
+
cleanupcontrol(root)
bb.utils.unlockfile(lf)
diff --git a/meta/classes/sign_ipk.bbclass b/meta/classes/sign_ipk.bbclass
new file mode 100644
index 0000000..a4f1f3a
--- /dev/null
+++ b/meta/classes/sign_ipk.bbclass
@@ -0,0 +1,73 @@
+# Class for generating signed IPK packages.
+#
+# Configuration variables used by this class:
+# IPK_GPG_PASSPHRASE_FILE
+# Path to a file containing the passphrase of the signing key.
+# IPK_GPG_NAME
+# Name of the key to sign with.
+# IPK_SIGNATURE_TYPE
+# Optional type of signature to accompany IPK files, can be:
+# 1. Ascii armored (ASC)
+# 2. Binary (BIN), default
+# GPG_BIN
+# Optional variable for specifying the gpg binary/wrapper to use for
+# signing.
+#
+
+inherit sanity
+
+IPK_SIGN_PACKAGES = '1'
+
+def ipksign_wrapper(d, ipk_file, passphrase, gpg_name=None, sigtype="BIN"):
+ import subprocess
+ from subprocess import Popen
+
+ keypipe = os.pipe()
+ os.write(keypipe[1], passphrase + '\n')
+
+ # use gpg from host PATH if user did not define a specific binary
+ cmd = [d.getVar('GPG_BIN', True) or bb.utils.which(os.getenv('PATH'),
"gpg")]
+
+ if gpg_name:
+ cmd += ["-q", "--batch", "--yes", "-b", "-u", gpg_name]
+ else:
+ raise_sanity_error("You need to define IPK_GPG_NAME in bitbake
config", d)
+
+ # transmit using pipes for security
+ cmd += ["--passphrase-fd", str(keypipe[0])]
+
+ # ascii armored or binary signatures
+ if sigtype.lower() == "ASC".lower():
+ cmd += ["-a"]
+ elif sigtype.lower() != "BIN".lower():
+ raise_sanity_error("Invalid IPK_SIGNATURE_TYPE in bitbake config", d)
+
+ cmd += [ipk_file]
+
+ p = Popen(cmd, stdin=subprocess.PIPE)
+ p.wait()
+
+ os.close(keypipe[1])
+ os.close(keypipe[0])
+
+ return p.returncode
+
+
+python sign_ipk () {
+ ipk_gpg_pass_file = (d.getVar("IPK_GPG_PASSPHRASE_FILE", True) or "")
+ if ipk_gpg_pass_file:
+ with open(ipk_gpg_pass_file) as fobj:
+ ipk_gpg_passphrase = fobj.readlines()[0].rstrip('\n')
+ else:
+ raise_sanity_error("You need to define IPK_GPG_PASSPHRASE_FILE in the
config", d)
+
+ ipk_gpg_name = (d.getVar("IPK_GPG_NAME", True) or "")
+
+ ipk_file = d.getVar('IPK_TO_SIGN')
+ bb.debug(1, 'IPK_TO_SIGN: %s' % ipk_file)
+
+ sigtype = (d.getVar("IPK_SIGNATURE_TYPE", True) or "")
+
+ if ipksign_wrapper(d, ipk_file, ipk_gpg_passphrase, ipk_gpg_name, sigtype)
!= 0:
+ raise bb.build.FuncFailed("IPK signing failed")
+}
--
2.1.4
--
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