81a090f89a
Related: RHEL-44988 original issue - FC-986 Add the --output option to update-ca-trust so that trust stores can be written to a different output directory. This is useful to prepare trust store directories that can be used in containers. Additionally, fix running update-ca-trust as non-root user (specifically, without CAP_DAC_OVERRIDE) which was previously required to create two symbolic links. Quote all uses of $DEST since a user-specified path could contain spaces.
127 lines
3.6 KiB
Bash
127 lines
3.6 KiB
Bash
#!/bin/sh
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#set -vx
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set -eu
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# For backwards compatibility reasons, future versions of this script must
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# support the syntax "update-ca-trust extract" trigger the generation of output
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# files in $DEST.
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DEST=/etc/pki/ca-trust/extracted
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# Prevent p11-kit from reading user configuration files.
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export P11_KIT_NO_USER_CONFIG=1
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usage() {
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fold -s -w 76 >&2 <<-EOF
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Usage: $0 [extract] [-o DIR|--output=DIR]
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Update the system trust store in $DEST.
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COMMANDS
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(absent/empty command): Same as the extract command described below.
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extract: Instruct update-ca-trust to scan the source configuration in
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/usr/share/pki/ca-trust-source and /etc/pki/ca-trust/source and produce
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updated versions of the consolidated configuration files stored below
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the $DEST directory hierarchy.
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EXTRACT OPTIONS
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-o DIR, --output=DIR: Write the extracted trust store into the given
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directory instead of updating $DEST.
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EOF
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}
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extract() {
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USER_DEST=
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if ! TEMP=$(getopt -o "ho:" --long "help,output:" -n "$0" -- "$@"); then
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echo >&2 ""
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usage
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exit 1
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fi
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eval set -- "$TEMP"
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unset TEMP
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while true; do
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case "$1" in
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"-o"|"--output")
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USER_DEST=$2
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shift 2
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continue
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;;
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"--")
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shift
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break
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;;
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*)
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usage
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exit 1
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;;
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esac
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done
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if [ $# -ne 0 ]; then
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echo >&2 "Error: Unexpected positional arguments:" "$@"
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echo >&2
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usage
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exit
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fi
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if [ -n "$USER_DEST" ]; then
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DEST=$USER_DEST
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fi
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# Attempt to create the directories if they do not exist yet (rhbz#2241240)
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mkdir -p \
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"$DEST"/openssl \
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"$DEST"/pem \
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"$DEST"/java \
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"$DEST"/edk2
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# OpenSSL PEM bundle that includes trust flags
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# (BEGIN TRUSTED CERTIFICATE)
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/usr/bin/p11-kit extract --format=openssl-bundle --filter=certificates --overwrite --comment "$DEST/openssl/ca-bundle.trust.crt"
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/usr/bin/p11-kit extract --format=pem-bundle --filter=ca-anchors --overwrite --comment --purpose server-auth "$DEST/pem/tls-ca-bundle.pem"
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/usr/bin/p11-kit extract --format=pem-bundle --filter=ca-anchors --overwrite --comment --purpose email "$DEST/pem/email-ca-bundle.pem"
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/usr/bin/p11-kit extract --format=pem-bundle --filter=ca-anchors --overwrite --comment --purpose code-signing "$DEST/pem/objsign-ca-bundle.pem"
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/usr/bin/p11-kit extract --format=java-cacerts --filter=ca-anchors --overwrite --purpose server-auth "$DEST/java/cacerts"
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/usr/bin/p11-kit extract --format=edk2-cacerts --filter=ca-anchors --overwrite --purpose=server-auth "$DEST/edk2/cacerts.bin"
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# Hashed directory of BEGIN TRUSTED-style certs (usable as OpenSSL CApath and
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# by GnuTLS)
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/usr/bin/p11-kit extract --format=pem-directory-hash --filter=ca-anchors --overwrite --purpose server-auth "$DEST/pem/directory-hash"
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# p11-kit extract will have made this directory unwritable; when run with
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# CAP_DAC_OVERRIDE this does not matter, but in container use cases that may
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# not be the case. See rhbz#2241240.
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chmod u+w "$DEST/pem/directory-hash"
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# Debian compatibility: their /etc/ssl/certs has this bundle
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/usr/bin/ln -s ../tls-ca-bundle.pem "$DEST/pem/directory-hash/ca-certificates.crt"
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# Backwards compatibility: RHEL/Fedora provided a /etc/ssl/certs/ca-bundle.crt
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# since https://bugzilla.redhat.com/show_bug.cgi?id=572725
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/usr/bin/ln -s ../tls-ca-bundle.pem "$DEST/pem/directory-hash/ca-bundle.crt"
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# Remove write permissions again
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chmod u-w "$DEST/pem/directory-hash"
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}
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if [ "$#" -lt 1 ]; then
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set -- extract
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fi
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case "$1" in
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"extract")
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shift
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extract "$@"
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;;
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"--"*|"-"*)
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# First parameter seems to be an option, assume the command is 'extract'
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extract "$@"
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;;
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*)
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echo >&2 "Error: Unknown command: $1"
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echo >&2
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usage
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exit 1
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;;
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esac
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