diff options
Diffstat (limited to 'sec-keys/openpgp-keys-gentoo-developers')
| -rw-r--r-- | sec-keys/openpgp-keys-gentoo-developers/Manifest | 1 | ||||
| -rw-r--r-- | sec-keys/openpgp-keys-gentoo-developers/openpgp-keys-gentoo-developers-20230424.ebuild | 233 |
2 files changed, 234 insertions, 0 deletions
diff --git a/sec-keys/openpgp-keys-gentoo-developers/Manifest b/sec-keys/openpgp-keys-gentoo-developers/Manifest index 40a59ff16a31..58234f472e92 100644 --- a/sec-keys/openpgp-keys-gentoo-developers/Manifest +++ b/sec-keys/openpgp-keys-gentoo-developers/Manifest @@ -1,2 +1,3 @@ DIST openpgp-keys-gentoo-developers-20230403-active-devs.gpg 3033398 BLAKE2B 233549fa600d855df1f4130224c63b10d0df3312886bef1c0486553db3025554a4fff7af104a3f0869390d53837a8d0182d830432e855273da28c753ea579d7e SHA512 33264b9ef002656f5c58dc2b2ff568d01b624c68e2e42db0d388b9a99b45c2d605df0d5db7b5029c0946f524fa7168252ba87908336e6f9ad0717c20d43cd112 DIST openpgp-keys-gentoo-developers-20230417-active-devs.gpg 3075471 BLAKE2B a1d35a6fa32cd92662ce7913000f043d15b2875865a7839df69c7c5648b70c20c43d59cc8fbc9d5bcbd4ea48ea7e7f8063a79fef624d39c092b60b6741e793bd SHA512 4637d67ab19512c80547f029ab95ba755308f9a88c7de4d417177201620b1e48fc21b4ae2bf40770222076aab10f812a71046ce198bdcfa1d08283a3211a4755 +DIST openpgp-keys-gentoo-developers-20230424-active-devs.gpg 3077177 BLAKE2B 37795ba97540163c722f6642d001767a64a19ed6e2ca64ed1aa6b69f363aac96f25c7f9adb244a35eb8786902048a1b78b1f1b4bccfa26bcf23638c6bb85c07f SHA512 3a610650a1f1aa5e17c33eed5b78521df523fc068004015f42d13eb8b72b08d7f9296420bb70fefae879c0eca2a2128c43149512fce07d01f78c088325e2c453 diff --git a/sec-keys/openpgp-keys-gentoo-developers/openpgp-keys-gentoo-developers-20230424.ebuild b/sec-keys/openpgp-keys-gentoo-developers/openpgp-keys-gentoo-developers-20230424.ebuild new file mode 100644 index 000000000000..efd0694ab707 --- /dev/null +++ b/sec-keys/openpgp-keys-gentoo-developers/openpgp-keys-gentoo-developers-20230424.ebuild @@ -0,0 +1,233 @@ +# Copyright 1999-2023 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +PYTHON_COMPAT=( python3_{9..11} ) +inherit edo python-any-r1 + +DESCRIPTION="Gentoo Authority Keys (GLEP 79)" +HOMEPAGE="https://www.gentoo.org/downloads/signatures/" +if [[ ${PV} == 9999* ]] ; then + PROPERTIES="live" + + BDEPEND="net-misc/curl" +else + SRC_URI="https://qa-reports.gentoo.org/output/keys/active-devs-${PV}.gpg -> ${P}-active-devs.gpg" + KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86" +fi + +S="${WORKDIR}" + +LICENSE="public-domain" +SLOT="0" +IUSE="test" +RESTRICT="!test? ( test )" + +BDEPEND+=" + $(python_gen_any_dep 'dev-python/python-gnupg[${PYTHON_USEDEP}]') + sec-keys/openpgp-keys-gentoo-auth + test? ( + app-crypt/gnupg + sys-apps/grep[pcre] + ) +" + +python_check_deps() { + python_has_version "dev-python/python-gnupg[${PYTHON_USEDEP}]" +} + +src_unpack() { + if [[ ${PV} == 9999* ]] ; then + curl https://qa-reports.gentoo.org/output/active-devs.gpg -o ${P}-active-devs.gpg || die + else + default + fi +} + +src_compile() { + export GNUPGHOME="${T}"/.gnupg + + get_gpg_keyring_dir() { + if [[ ${PV} == 9999* ]] ; then + echo "${WORKDIR}" + else + echo "${DISTDIR}" + fi + } + + local mygpgargs=( + --no-autostart + --no-default-keyring + --homedir "${GNUPGHOME}" + ) + + # From verify-sig.eclass: + # "GPG upstream knows better than to follow the spec, so we can't + # override this directory. However, there is a clean fallback + # to GNUPGHOME." + addpredict /run/user + + mkdir "${GNUPGHOME}" || die + chmod 700 "${GNUPGHOME}" || die + + # Convert the binary keyring into an armored one so we can process it + edo gpg "${mygpgargs[@]}" --import "$(get_gpg_keyring_dir)"/${P}-active-devs.gpg + edo gpg "${mygpgargs[@]}" --export --armor > "${WORKDIR}"/gentoo-developers.asc + + # Now strip out the keys which are expired and/or missing a signature + # from our L2 developer authority key + edo "${EPYTHON}" "${FILESDIR}"/keyring-mangler.py \ + "${BROOT}"/usr/share/openpgp-keys/gentoo-auth.asc \ + "${WORKDIR}"/gentoo-developers.asc \ + "${WORKDIR}"/gentoo-developers-sanitised.asc +} + +src_test() { + export GNUPGHOME="${T}"/tests/.gnupg + + local mygpgargs=( + # We don't have --no-autostart here because we need + # to let it spawn an agent for the key generation. + --no-default-keyring + --homedir "${GNUPGHOME}" + ) + + # From verify-sig.eclass: + # "GPG upstream knows better than to follow the spec, so we can't + # override this directory. However, there is a clean fallback + # to GNUPGHOME." + addpredict /run/user + + # Check each of the keys to verify they're trusted by + # the L2 developer key. + mkdir -p "${GNUPGHOME}" || die + chmod 700 "${GNUPGHOME}" || die + cd "${T}"/tests || die + + # First, grab the L1 key, and mark it as ultimately trusted. + edo gpg "${mygpgargs[@]}" --import "${BROOT}"/usr/share/openpgp-keys/gentoo-auth.asc + edo gpg "${mygpgargs[@]}" --import-ownertrust "${BROOT}"/usr/share/openpgp-keys/gentoo-auth-ownertrust.txt + + # Generate a temporary key which isn't signed by anything to check + # whether we're detecting unexpected keys. + # + # The test is whether this appears in the sanitised keyring we + # produce in src_compile (it should not be in there). + # + # https://www.gnupg.org/documentation/manuals/gnupg/Unattended-GPG-key-generation.html + edo gpg "${mygpgargs[@]}" --batch --gen-key <<-EOF + %echo Generating temporary key for testing... + + %no-protection + %transient-key + %pubring ${P}-ebuild-test-key.asc + + Key-Type: 1 + Key-Length: 2048 + Subkey-Type: 1 + Subkey-Length: 2048 + Name-Real: Larry The Cow + Name-Email: larry@example.com + Expire-Date: 0 + Handle: ${P}-ebuild-test-key + + %commit + %echo Temporary key generated! + EOF + + # Import the new injected key that shouldn't be signed by anything into a temporary testing keyring + edo gpg "${mygpgargs[@]}" --import "${T}"/tests/${P}-ebuild-test-key.asc + + # Sign a tiny file with the to-be-injected key for testing rejection below + echo "Hello world!" > "${T}"/tests/signme || die + edo gpg "${mygpgargs[@]}" -u "Larry The Cow <larry@example.com>" --sign "${T}"/tests/signme || die + + edo gpg "${mygpgargs[@]}" --export --armor > "${T}"/tests/tainted-keyring.asc + + # keyring-mangler.py should now produce a keyring *without* it + edo "${EPYTHON}" "${FILESDIR}"/keyring-mangler.py \ + "${BROOT}"/usr/share/openpgp-keys/gentoo-auth.asc \ + "${T}"/tests/tainted-keyring.asc \ + "${T}"/tests/gentoo-developers-sanitised.asc | tee "${T}"/tests/keyring-mangler.log + assert "Key mangling in tests failed?" + + # Check the log to verify the injected key got detected + grep -q "Dropping key.*Larry The Cow" "${T}"/tests/keyring-mangler.log || die "Did not remove injected key from test keyring!" + + # gnupg doesn't have an easy way for us to actually just.. ask + # if a key is known via WoT. So, sign a file using the key + # we just made, and then try to gpg --verify it, and check exit code. + # + # Let's now double check by seeing if a file signed by the injected key + # is rejected. + if gpg "${mygpgargs[@]}" --keyring "${T}"/tests/gentoo-developers-sanitised.asc --verify "${T}"/tests/signme.gpg ; then + die "'gpg --verify' using injected test key succeeded! This shouldn't happen!" + fi + + # Bonus lame sanity check + edo gpg "${mygpgargs[@]}" --check-trustdb 2>&1 | tee "${T}"/tests/trustdb.log + assert "trustdb call failed!" + + check_trust_levels() { + local mode=${1} + + while IFS= read -r line; do + # gpg: depth: 0 valid: 1 signed: 2 trust: 0-, 0q, 0n, 0m, 0f, 1u + # gpg: depth: 1 valid: 2 signed: 0 trust: 0-, 0q, 0n, 0m, 2f, 0u + if [[ ${line} == *depth* ]] ; then + depth=$(echo ${line} | grep -Po "depth: [0-9]") + trust=$(echo ${line} | grep -Po "trust:.*") + + trust_uncalculated=$(echo ${trust} | grep -Po "[0-9]-") + [[ ${trust_uncalculated} == 0 ]] || ${mode} + + trust_insufficient=$(echo ${trust} | grep -Po "[0-9]q") + [[ ${trust_insufficient} == 0 ]] || ${mode} + + trust_never=$(echo ${trust} | grep -Po "[0-9]n") + [[ ${trust_never} == 0 ]] || ${mode} + + trust_marginal=$(echo ${trust} | grep -Po "[0-9]m") + [[ ${trust_marginal} == 0 ]] || ${mode} + + trust_full=$(echo ${trust} | grep -Po "[0-9]f") + [[ ${trust_full} != 0 ]] || ${mode} + + trust_ultimate=$(echo ${trust} | grep -Po "[0-9]u") + [[ ${trust_ultimate} == 1 ]] || ${mode} + + echo "${trust_uncalculated}, ${trust_insufficient}" + fi + done < "${T}"/tests/trustdb.log + } + + # First, check with the bad key still in the test keyring. + # This is supposed to fail, so we want it to return 1 + check_trust_levels "return 1" && die "Trustdb passed when it should have failed!" + + # Now check without the bad key in the test keyring. + # This one should pass. + # + # Drop the bad key first (https://superuser.com/questions/174583/how-to-delete-gpg-secret-keys-by-force-without-fingerprint) + keys=$(gpg "${mygpgargs[@]}" --fingerprint --with-colons --batch "Larry The Cow <larry@example.com>" \ + | grep "^fpr" \ + | sed -n 's/^fpr:::::::::\([[:alnum:]]\+\):/\1/p') + + local key + for key in ${keys[@]} ; do + nonfatal edo gpg "${mygpgargs[@]}" --batch --yes --delete-secret-keys ${key} + done + + edo gpg "${mygpgargs[@]}" --batch --yes --delete-keys "Larry The Cow <larry@example.com>" + check_trust_levels "return 0" || die "Trustdb failed when it should have passed!" + + gpgconf --kill gpg-agent || die +} + +src_install() { + insinto /usr/share/openpgp-keys + newins gentoo-developers-sanitised.asc gentoo-developers.asc + + # TODO: install an ownertrust file like sec-keys/openpgp-keys-gentoo-auth? +} |