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MODSIGN: Add option to not sign modules during modules_install

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To allow the builder to sign only a subset of modules, or to sign the
modules using a key that is not available on the build machine, add
CONFIG_MODULE_SIG_ALL. If this option is unset, no modules will be
signed during build. The default is 'y', to preserve the current
behavior.

Signed-off-by: Michal Marek <mmarek@suse.cz>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Michal Marek 2013-01-25 13:41:31 +10:30 committed by Rusty Russell
parent 1c37c054a7
commit d9d8d7ed49
2 changed files with 12 additions and 1 deletions
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2
Makefile
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@ -719,7 +719,7 @@ endif # INSTALL_MOD_STRIP
export mod_strip_cmd
ifeq ($(CONFIG_MODULE_SIG),y)
ifdef CONFIG_MODULE_SIG_ALL
MODSECKEY = ./signing_key.priv
MODPUBKEY = ./signing_key.x509
export MODPUBKEY

11
init/Kconfig
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@ -1665,6 +1665,17 @@ config MODULE_SIG_FORCE
Reject unsigned modules or signed modules for which we don't have a
key. Without this, such modules will simply taint the kernel.
config MODULE_SIG_ALL
bool "Automatically sign all modules"
default y
depends on MODULE_SIG
help
Sign all modules during make modules_install. Without this option,
modules must be signed manually, using the scripts/sign-file tool.
comment "Do not forget to sign required modules with scripts/sign-file"
depends on MODULE_SIG_FORCE && !MODULE_SIG_ALL
choice
prompt "Which hash algorithm should modules be signed with?"
depends on MODULE_SIG