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* [PATCH v2] ima-evm-utils: rework openssl init
@ 2019-02-03 17:47 Vitaly Chikunov
  2019-02-12 22:11 ` Mimi Zohar
  2019-03-10 22:32 ` Mimi Zohar
  0 siblings, 2 replies; 5+ messages in thread
From: Vitaly Chikunov @ 2019-02-03 17:47 UTC (permalink / raw)
  To: Mimi Zohar, Dmitry Kasatkin, linux-integrity

Remove deprecated call to OpenSSL_add_all_algorithms().
Allow to disable openssl config loading via configure
`--disable-openssl-conf' option.
Finish engine initialization properly by calling ENGINE_set_default(),
as suggested by James Bottomley.

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>
---
- v1 is "ima-evm-utils: remove redundant call to OpenSSL_add_all_algorithms"
- everything is changed as suggested in mailing list, not just
  redundant OpenSSL_add_all_algorithms() call is removed.

 configure.ac    | 6 ++++++
 src/evmctl.c    | 1 +
 src/libimaevm.c | 8 ++++++--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 60f3684..ff8ac29 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,12 @@ AC_ARG_WITH(kernel_headers, [AS_HELP_STRING([--with-kernel-headers=PATH],
 	    [KERNEL_HEADERS="$withval"],
 	    [KERNEL_HEADERS=/lib/modules/$(uname -r)/source])
 
+AC_ARG_ENABLE([openssl_conf],
+	      [AS_HELP_STRING([--disable-openssl-conf], [disable loading of openssl config by libimaevm])],
+	      if test "$enable_openssl_conf" = "no"; then
+		AC_DEFINE(DISABLE_OPENSSL_CONF, 1, [Define to disable loading of openssl config by libimaevm.])
+	      fi)
+
 #debug support - yes for a while
 PKG_ARG_ENABLE(debug, "yes", DEBUG, [Enable Debug support])
 if test $pkg_cv_enable_debug = yes; then
diff --git a/src/evmctl.c b/src/evmctl.c
index 2e4d551..fa074c4 100644
--- a/src/evmctl.c
+++ b/src/evmctl.c
@@ -1904,6 +1904,7 @@ int main(int argc, char *argv[])
 				ENGINE_free(eng);
 				eng = NULL;
 			}
+			ENGINE_set_default(eng, ENGINE_METHOD_ALL);
 			break;
 		case 140: /* --xattr-user */
 			xattr_ima = "user.ima";
diff --git a/src/libimaevm.c b/src/libimaevm.c
index 799eeec..db27c6f 100644
--- a/src/libimaevm.c
+++ b/src/libimaevm.c
@@ -976,7 +976,11 @@ int sign_hash(const char *hashalgo, const unsigned char *hash, int size, const c
 
 static void libinit()
 {
-	OpenSSL_add_all_algorithms();
-	OPENSSL_add_all_algorithms_conf();
+	OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
+			    OPENSSL_INIT_ADD_ALL_DIGESTS |
+#ifndef DISABLE_OPENSSL_CONF
+			    OPENSSL_INIT_LOAD_CONFIG |
+#endif
+			    OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);
 	ERR_load_crypto_strings();
 }
-- 
2.11.0


^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] ima-evm-utils: rework openssl init
  2019-02-03 17:47 [PATCH v2] ima-evm-utils: rework openssl init Vitaly Chikunov
@ 2019-02-12 22:11 ` Mimi Zohar
  2019-03-10 22:32 ` Mimi Zohar
  1 sibling, 0 replies; 5+ messages in thread
From: Mimi Zohar @ 2019-02-12 22:11 UTC (permalink / raw)
  To: Vitaly Chikunov, Mimi Zohar, Dmitry Kasatkin, linux-integrity

On Sun, 2019-02-03 at 20:47 +0300, Vitaly Chikunov wrote:
> Remove deprecated call to OpenSSL_add_all_algorithms().
> Allow to disable openssl config loading via configure
> `--disable-openssl-conf' option.
> Finish engine initialization properly by calling ENGINE_set_default(),
> as suggested by James Bottomley.
> 
> Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Thanks!

Mimi


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] ima-evm-utils: rework openssl init
  2019-02-03 17:47 [PATCH v2] ima-evm-utils: rework openssl init Vitaly Chikunov
  2019-02-12 22:11 ` Mimi Zohar
@ 2019-03-10 22:32 ` Mimi Zohar
  2019-03-10 23:15   ` Vitaly Chikunov
  1 sibling, 1 reply; 5+ messages in thread
From: Mimi Zohar @ 2019-03-10 22:32 UTC (permalink / raw)
  To: Vitaly Chikunov, Mimi Zohar, Dmitry Kasatkin, linux-integrity

Hi Vitaly,

On Sun, 2019-02-03 at 20:47 +0300, Vitaly Chikunov wrote:
> Remove deprecated call to OpenSSL_add_all_algorithms().
> Allow to disable openssl config loading via configure
> `--disable-openssl-conf' option.
> Finish engine initialization properly by calling ENGINE_set_default(),
> as suggested by James Bottomley.
> 

Thanks, could you also display the status under "Give some feedback".

Mimi


> Signed-off-by: Vitaly Chikunov <vt@altlinux.org>
> ---
> - v1 is "ima-evm-utils: remove redundant call to OpenSSL_add_all_algorithms"
> - everything is changed as suggested in mailing list, not just
>   redundant OpenSSL_add_all_algorithms() call is removed.
> 
>  configure.ac    | 6 ++++++
>  src/evmctl.c    | 1 +
>  src/libimaevm.c | 8 ++++++--
>  3 files changed, 13 insertions(+), 2 deletions(-)
> 
> diff --git a/configure.ac b/configure.ac
> index 60f3684..ff8ac29 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -39,6 +39,12 @@ AC_ARG_WITH(kernel_headers, [AS_HELP_STRING([--with-kernel-headers=PATH],
>  	    [KERNEL_HEADERS="$withval"],
>  	    [KERNEL_HEADERS=/lib/modules/$(uname -r)/source])
> 
> +AC_ARG_ENABLE([openssl_conf],
> +	      [AS_HELP_STRING([--disable-openssl-conf], [disable loading of openssl config by libimaevm])],
> +	      if test "$enable_openssl_conf" = "no"; then
> +		AC_DEFINE(DISABLE_OPENSSL_CONF, 1, [Define to disable loading of openssl config by libimaevm.])
> +	      fi)
> +
>  #debug support - yes for a while
>  PKG_ARG_ENABLE(debug, "yes", DEBUG, [Enable Debug support])
>  if test $pkg_cv_enable_debug = yes; then
> diff --git a/src/evmctl.c b/src/evmctl.c
> index 2e4d551..fa074c4 100644
> --- a/src/evmctl.c
> +++ b/src/evmctl.c
> @@ -1904,6 +1904,7 @@ int main(int argc, char *argv[])
>  				ENGINE_free(eng);
>  				eng = NULL;
>  			}
> +			ENGINE_set_default(eng, ENGINE_METHOD_ALL);
>  			break;
>  		case 140: /* --xattr-user */
>  			xattr_ima = "user.ima";
> diff --git a/src/libimaevm.c b/src/libimaevm.c
> index 799eeec..db27c6f 100644
> --- a/src/libimaevm.c
> +++ b/src/libimaevm.c
> @@ -976,7 +976,11 @@ int sign_hash(const char *hashalgo, const unsigned char *hash, int size, const c
> 
>  static void libinit()
>  {
> -	OpenSSL_add_all_algorithms();
> -	OPENSSL_add_all_algorithms_conf();
> +	OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
> +			    OPENSSL_INIT_ADD_ALL_DIGESTS |
> +#ifndef DISABLE_OPENSSL_CONF
> +			    OPENSSL_INIT_LOAD_CONFIG |
> +#endif
> +			    OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);
>  	ERR_load_crypto_strings();
>  }


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] ima-evm-utils: rework openssl init
  2019-03-10 22:32 ` Mimi Zohar
@ 2019-03-10 23:15   ` Vitaly Chikunov
  2019-03-23  1:25     ` Vitaly Chikunov
  0 siblings, 1 reply; 5+ messages in thread
From: Vitaly Chikunov @ 2019-03-10 23:15 UTC (permalink / raw)
  To: Mimi Zohar; +Cc: Mimi Zohar, Dmitry Kasatkin, linux-integrity

Mimi,

On Sun, Mar 10, 2019 at 06:32:02PM -0400, Mimi Zohar wrote:
> 
> On Sun, 2019-02-03 at 20:47 +0300, Vitaly Chikunov wrote:
> > Remove deprecated call to OpenSSL_add_all_algorithms().
> > Allow to disable openssl config loading via configure
> > `--disable-openssl-conf' option.
> > Finish engine initialization properly by calling ENGINE_set_default(),
> > as suggested by James Bottomley.
> > 
> 
> Thanks, could you also display the status under "Give some feedback".

OK.

> 
> Mimi
> 
> 
> > Signed-off-by: Vitaly Chikunov <vt@altlinux.org>
> > ---
> > - v1 is "ima-evm-utils: remove redundant call to OpenSSL_add_all_algorithms"
> > - everything is changed as suggested in mailing list, not just
> >   redundant OpenSSL_add_all_algorithms() call is removed.
> > 
> >  configure.ac    | 6 ++++++
> >  src/evmctl.c    | 1 +
> >  src/libimaevm.c | 8 ++++++--
> >  3 files changed, 13 insertions(+), 2 deletions(-)
> > 
> > diff --git a/configure.ac b/configure.ac
> > index 60f3684..ff8ac29 100644
> > --- a/configure.ac
> > +++ b/configure.ac
> > @@ -39,6 +39,12 @@ AC_ARG_WITH(kernel_headers, [AS_HELP_STRING([--with-kernel-headers=PATH],
> >  	    [KERNEL_HEADERS="$withval"],
> >  	    [KERNEL_HEADERS=/lib/modules/$(uname -r)/source])
> > 
> > +AC_ARG_ENABLE([openssl_conf],
> > +	      [AS_HELP_STRING([--disable-openssl-conf], [disable loading of openssl config by libimaevm])],
> > +	      if test "$enable_openssl_conf" = "no"; then
> > +		AC_DEFINE(DISABLE_OPENSSL_CONF, 1, [Define to disable loading of openssl config by libimaevm.])
> > +	      fi)
> > +
> >  #debug support - yes for a while
> >  PKG_ARG_ENABLE(debug, "yes", DEBUG, [Enable Debug support])
> >  if test $pkg_cv_enable_debug = yes; then
> > diff --git a/src/evmctl.c b/src/evmctl.c
> > index 2e4d551..fa074c4 100644
> > --- a/src/evmctl.c
> > +++ b/src/evmctl.c
> > @@ -1904,6 +1904,7 @@ int main(int argc, char *argv[])
> >  				ENGINE_free(eng);
> >  				eng = NULL;
> >  			}
> > +			ENGINE_set_default(eng, ENGINE_METHOD_ALL);
> >  			break;
> >  		case 140: /* --xattr-user */
> >  			xattr_ima = "user.ima";
> > diff --git a/src/libimaevm.c b/src/libimaevm.c
> > index 799eeec..db27c6f 100644
> > --- a/src/libimaevm.c
> > +++ b/src/libimaevm.c
> > @@ -976,7 +976,11 @@ int sign_hash(const char *hashalgo, const unsigned char *hash, int size, const c
> > 
> >  static void libinit()
> >  {
> > -	OpenSSL_add_all_algorithms();
> > -	OPENSSL_add_all_algorithms_conf();
> > +	OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
> > +			    OPENSSL_INIT_ADD_ALL_DIGESTS |
> > +#ifndef DISABLE_OPENSSL_CONF
> > +			    OPENSSL_INIT_LOAD_CONFIG |
> > +#endif
> > +			    OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);
> >  	ERR_load_crypto_strings();
> >  }

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] ima-evm-utils: rework openssl init
  2019-03-10 23:15   ` Vitaly Chikunov
@ 2019-03-23  1:25     ` Vitaly Chikunov
  0 siblings, 0 replies; 5+ messages in thread
From: Vitaly Chikunov @ 2019-03-23  1:25 UTC (permalink / raw)
  To: Mimi Zohar; +Cc: Mimi Zohar, Dmitry Kasatkin, linux-integrity

Mimi,

On Mon, Mar 11, 2019 at 02:15:49AM +0300, Vitaly Chikunov wrote:
> On Sun, Mar 10, 2019 at 06:32:02PM -0400, Mimi Zohar wrote:
> > 
> > On Sun, 2019-02-03 at 20:47 +0300, Vitaly Chikunov wrote:
> > > Remove deprecated call to OpenSSL_add_all_algorithms().
> > > Allow to disable openssl config loading via configure
> > > `--disable-openssl-conf' option.
> > > Finish engine initialization properly by calling ENGINE_set_default(),
> > > as suggested by James Bottomley.
> > > 
> > 
> > Thanks, could you also display the status under "Give some feedback".
> 
> OK.
> 
> > 
> > Mimi
> > 
> > 
> > > Signed-off-by: Vitaly Chikunov <vt@altlinux.org>
> > > ---
> > > - v1 is "ima-evm-utils: remove redundant call to OpenSSL_add_all_algorithms"
> > > - everything is changed as suggested in mailing list, not just
> > >   redundant OpenSSL_add_all_algorithms() call is removed.
> > > 
> > >  configure.ac    | 6 ++++++
> > >  src/evmctl.c    | 1 +
> > >  src/libimaevm.c | 8 ++++++--
> > >  3 files changed, 13 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/configure.ac b/configure.ac
> > > index 60f3684..ff8ac29 100644
> > > --- a/configure.ac
> > > +++ b/configure.ac
> > > @@ -39,6 +39,12 @@ AC_ARG_WITH(kernel_headers, [AS_HELP_STRING([--with-kernel-headers=PATH],
> > >  	    [KERNEL_HEADERS="$withval"],
> > >  	    [KERNEL_HEADERS=/lib/modules/$(uname -r)/source])
> > > 
> > > +AC_ARG_ENABLE([openssl_conf],
> > > +	      [AS_HELP_STRING([--disable-openssl-conf], [disable loading of openssl config by libimaevm])],
> > > +	      if test "$enable_openssl_conf" = "no"; then
> > > +		AC_DEFINE(DISABLE_OPENSSL_CONF, 1, [Define to disable loading of openssl config by libimaevm.])
> > > +	      fi)
> > > +
> > >  #debug support - yes for a while
> > >  PKG_ARG_ENABLE(debug, "yes", DEBUG, [Enable Debug support])
> > >  if test $pkg_cv_enable_debug = yes; then
> > > diff --git a/src/evmctl.c b/src/evmctl.c
> > > index 2e4d551..fa074c4 100644
> > > --- a/src/evmctl.c
> > > +++ b/src/evmctl.c
> > > @@ -1904,6 +1904,7 @@ int main(int argc, char *argv[])
> > >  				ENGINE_free(eng);
> > >  				eng = NULL;
> > >  			}
> > > +			ENGINE_set_default(eng, ENGINE_METHOD_ALL);
> > >  			break;
> > >  		case 140: /* --xattr-user */
> > >  			xattr_ima = "user.ima";
> > > diff --git a/src/libimaevm.c b/src/libimaevm.c
> > > index 799eeec..db27c6f 100644
> > > --- a/src/libimaevm.c
> > > +++ b/src/libimaevm.c
> > > @@ -976,7 +976,11 @@ int sign_hash(const char *hashalgo, const unsigned char *hash, int size, const c
> > > 
> > >  static void libinit()
> > >  {
> > > -	OpenSSL_add_all_algorithms();
> > > -	OPENSSL_add_all_algorithms_conf();
> > > +	OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
> > > +			    OPENSSL_INIT_ADD_ALL_DIGESTS |
> > > +#ifndef DISABLE_OPENSSL_CONF
> > > +			    OPENSSL_INIT_LOAD_CONFIG |
> > > +#endif
> > > +			    OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);

I think now, that libimaevm should not load config, because it is
library and that decision should be of the program that uses it.

Thus, src/libimaevm.c:libinit should only call 

      OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
			  OPENSSL_INIT_ADD_ALL_DIGESTS, NULL);

(like OpenSSL_add_all_algorithms*() was doing) and option
`--disable-openssl-conf` should be removed.

But, evmctl should always call OPENSSL_init_crypto() again, with
`OPENSSL_INIT_LOAD_CONFIG | OPENSSL_INIT_ENGINE_ALL_BUILTIN`.

What do you think?

If you wish we can repurpose `--disable-openssl-conf` to affect `evmctl`
instead of `libimaevm`.

Thanks,

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2019-03-23  1:25 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-03 17:47 [PATCH v2] ima-evm-utils: rework openssl init Vitaly Chikunov
2019-02-12 22:11 ` Mimi Zohar
2019-03-10 22:32 ` Mimi Zohar
2019-03-10 23:15   ` Vitaly Chikunov
2019-03-23  1:25     ` Vitaly Chikunov

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