[gnome-continuous-yocto/gnomeostree-3.28-rocko: 6752/8267] sign_rpm: support signing files in RPM payload

[Emmanuele Bassi <ebassi src gnome org>]

commit 30ba8b6894fc332651eba1f2451eb5aba23a7251
Author: Lans Zhang <jia zhang windriver com>
Date:   Tue Jul 11 12:43:03 2017 +0800

    sign_rpm: support signing files in RPM payload
    
    Currently, RPM4 supports to sign the files in RPM payload with plugin
    mechanism. We introduce more definitions to make the file signing
    available for the users:
    
    - RPM_FILE_CHECKSUM_DIGEST
      Global switch to enable file signing.
    - RPM_FSK_PATH
      The file signing key.
    - RPM_FSK_PASSWORD
      The password of file signing key.
    - RPM_FILE_CHECKSUM_DIGEST
      The file checksum digest.
    
    (From OE-Core rev: 95b9ee33d5595078e90c633f6155ec9ba3d184f0)
    
    Signed-off-by: Lans Zhang <jia zhang windriver com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/classes/sign_rpm.bbclass |   20 +++++++++++++++++++-
 meta/lib/oe/gpg_sign.py       |    7 ++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)
---
diff --git a/meta/classes/sign_rpm.bbclass b/meta/classes/sign_rpm.bbclass
index bc2e947..c49406c 100644
--- a/meta/classes/sign_rpm.bbclass
+++ b/meta/classes/sign_rpm.bbclass
@@ -9,6 +9,13 @@
 #           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.
+# RPM_FILE_CHECKSUM_DIGEST
+#           Optional variable for specifying the algorithm for generating file
+#           checksum digest.
+# RPM_FSK_PATH
+#           Optional variable for the file signing key.
+# RPM_FSK_PASSWORD
+#           Optional variable for the file signing key password.
 # GPG_BIN
 #           Optional variable for specifying the gpg binary/wrapper to use for
 #           signing.
@@ -18,7 +25,10 @@
 inherit sanity
 
 RPM_SIGN_PACKAGES='1'
+RPM_SIGN_FILES ?= '0'
 RPM_GPG_BACKEND ?= 'local'
+# SHA-256 is used by default
+RPM_FILE_CHECKSUM_DIGEST ?= '8'
 
 
 python () {
@@ -28,6 +38,11 @@ python () {
     for var in ('RPM_GPG_NAME', 'RPM_GPG_PASSPHRASE'):
         if not d.getVar(var):
             raise_sanity_error("You need to define %s in the config" % var, d)
+
+    if d.getVar('RPM_SIGN_FILES') == '1':
+        for var in ('RPM_FSK_PATH', 'RPM_FSK_PASSWORD'):
+            if not d.getVar(var):
+                raise_sanity_error("You need to define %s in the config" % var, d)
 }
 
 python sign_rpm () {
@@ -39,7 +54,10 @@ python sign_rpm () {
 
     signer.sign_rpms(rpms,
                      d.getVar('RPM_GPG_NAME'),
-                     d.getVar('RPM_GPG_PASSPHRASE'))
+                     d.getVar('RPM_GPG_PASSPHRASE'),
+                     d.getVar('RPM_FILE_CHECKSUM_DIGEST'),
+                     d.getVar('RPM_FSK_PATH'),
+                     d.getVar('RPM_FSK_PASSWORD'))
 }
 
 do_package_index[depends] += "signing-keys:do_deploy"
diff --git a/meta/lib/oe/gpg_sign.py b/meta/lib/oe/gpg_sign.py
index c53df54..f4d8b10 100644
--- a/meta/lib/oe/gpg_sign.py
+++ b/meta/lib/oe/gpg_sign.py
@@ -27,7 +27,7 @@ class LocalSigner(object):
             raise bb.build.FuncFailed('Failed to export gpg public key (%s): %s' %
                                       (keyid, output))
 
-    def sign_rpms(self, files, keyid, passphrase):
+    def sign_rpms(self, files, keyid, passphrase, digest, fsk=None, fsk_password=None):
         """Sign RPM files"""
 
         cmd = self.rpm_bin + " --addsign --define '_gpg_name %s'  " % keyid
@@ -35,10 +35,15 @@ class LocalSigner(object):
         if self.gpg_version > (2,1,):
             gpg_args += ' --pinentry-mode=loopback'
         cmd += "--define '_gpg_sign_cmd_extra_args %s' " % gpg_args
+        cmd += "--define '_binary_filedigest_algorithm %s' " % digest
         if self.gpg_bin:
             cmd += "--define '__gpg %s' " % self.gpg_bin
         if self.gpg_path:
             cmd += "--define '_gpg_path %s' " % self.gpg_path
+        if fsk:
+            cmd += "--signfiles --fskpath %s " % fsk
+            if fsk_password:
+                cmd += "--define '_file_signing_key_password %s' " % fsk_password
 
         # Sign in chunks of 100 packages
         for i in range(0, len(files), 100):