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0dc5fc8fa5
This adapts the engine build infrastructure to allow building providers, and packages the legacy provider. Providers are the successors of engines, which have been deprecated. The legacy provider supplies OpenSSL implementations of algorithms that have been deemed legacy, including DES, IDEA, MDC2, SEED, and Whirlpool. Even though these algorithms are implemented in a separate package, their removal makes the regular library smaller by 3%, so the build options will remain to allow lean custom builds. Their defaults will change to 'y' if not bulding for a small flash, so that the regular legacy package will contain a complete set of algorithms. The engine build and configuration structure was changed to accomodate providers, and adapt to the new style of openssl.cnf in version 3.0. There is not a clean upgrade path for the /etc/ssl/openssl.cnf file, installed by the openssl-conf package. It is recommended to rename or remove the old config file when flashing an image with the updated openssl-conf package, then apply the changes manually. An old openssl.cnf file will silently work, but new engine or provider packages will not be enabled. Any remaining engine config files under /etc/ssl/engines.cnf.d can be removed. On the build side, the include file used by engine packages was renamed to openssl-module.mk, so the engine packages in other feeds need to adapt. Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
73 lines
1.6 KiB
Bash
Executable File
73 lines
1.6 KiB
Bash
Executable File
#!/bin/sh /etc/rc.common
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START=13
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ENGINES_CNF=/var/etc/ssl/engines.cnf
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ENGINES_DIR=%ENGINES_DIR%
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MODULES_DIR=/usr/lib/ossl-modules
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PROVIDERS_CNF=/var/etc/ssl/providers.cnf
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#1: cnf file
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write_cnf_header() {
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mkdir -p "$(dirname "$1")" && \
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echo "# This file is automatically generated from /etc/config/openssl." >"$1" || {
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echo "Error writing to $1."
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return 1
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}
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}
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#1: module name
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#2: output cnf file
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#3: module.so
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enable_module() {
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local builtin enabled force
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config_get_bool builtin "$1" builtin 0
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config_get_bool enabled "$1" enabled 1
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config_get_bool force "$1" force 0
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if [ "$enabled" = 0 ]; then
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[ "$builtin" = 0 ] && return 1
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echo "Engine $1 is built into the libcrypto library and can't be disabled through UCI."
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echo "If the engine was not built-in, remove 'config builtin' from /etc/config/openssl."
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elif [ "$force" = 1 ]; then
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printf "[Forced] "
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elif ! grep -q "\\[ *$1_sect *]" /etc/ssl/modules.cnf.d/*; then
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echo "$1: Could not find section [$1] in config files."
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return 1
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elif [ "$builtin" = 1 ]; then
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printf "[Builtin] "
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elif [ ! -f "$3" ];then
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echo "Skipping $1: $3 not found."
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return 1
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fi
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echo "Enabling $1"
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echo "$1=$1_sect" >>"$2"
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}
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config_engine() {
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enable_module "$1" "$ENGINES_CNF" \
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"${ENGINES_DIR}/${1}.so"
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}
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config_provider() {
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enable_module "$1" "$PROVIDERS_CNF" \
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"${MODULES_DIR}/${1}.so"
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}
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start() {
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local ret=0
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config_load openssl
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echo Generating engines.cnf
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write_cnf_header "${ENGINES_CNF}" && \
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config_foreach config_engine engine || ret=$?
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echo Generating providers.cnf
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write_cnf_header "${PROVIDERS_CNF}" && \
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config_foreach config_provider provider || ret=$?
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return $ret
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}
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