security/build/b2g-certdata.mk

   1 # This Source Code Form is subject to the terms of the Mozilla Public
   2 # License, v. 2.0. If a copy of the MPL was not distributed with this
   3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4
   5 # On B2G, we need to remove the trust bits for code signing from all the
   6 # built-in CAs, because we are redefining the code signing bit to mean
   7 # "is trusted to issue certs that are trusted for signing apps," which none
   8 # of the normal built-in CAs are. This is a temporary hack until we can use
   9 # libpkix to verify the certificates. (libpkix gives the flexibility we need
  10 # to verify certificates using different sets of trust anchors per validation.)
  11 #
  12 # Whenever we change the B2G app signing trust anchor, we need to manually
  13 # update certdata-b2g.txt. To do so:
  14 #
  15 # 1. replace ./b2g-app-root-cert.der with the new DER-encoded root cert
  16 #
  17 # 2. In this directory run:
  18 #
  19 #     PATH=$NSS/bin:$NSS/lib addbuiltin -n "b2g-app-root-cert" -t ",,Cu" \
  20 #       < b2g-app-root-cert.der > b2g-certdata.txt
  21 #
  22 # Then, commit the changes. We don't do this step as part of the build because
  23 # we do not build addbuiltin as part of a Gecko build.
  24
  25 # Distrust all existing builtin CAs for code-signing
  26 hacked-certdata.txt : $(srcdir)/../nss/lib/ckfw/builtins/certdata.txt
  27         sed -e "s/^CKA_TRUST_CODE_SIGNING.*CKT_NSS_TRUSTED_DELEGATOR.*/CKA_TRUST_CODE_SIGNING CK_TRUST CKT_NSS_MUST_VERIFY_TRUST/" \
  28                         $< > $@
  29
  30 combined-certdata.txt : hacked-certdata.txt $(srcdir)/b2g-certdata.txt
  31         cat $^ > $@
  32
  33 libs-nss/lib libs-nss/lib/ckfw: combined-certdata.txt
  34
  35 DEFAULT_GMAKE_FLAGS += NSS_CERTDATA_TXT='$(CURDIR)/combined-certdata.txt'