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Date: Fri, 27 May 2022 18:05:03 +0200
From: Sedat Dilek <sedat.dilek@...il.com>
To: Kees Cook <keescook@...omium.org>
Cc: keyrings@...r.kernel.org, linux-kernel@...r.kernel.org,
Salvatore Bonaccorso <carnil@...ian.org>,
David Woodhouse <dwmw2@...radead.org>,
David Howells <dhowells@...hat.com>,
Tasmiya Nalatwad <tasmiya@...ux.vnet.ibm.com>,
James Bottomley <James.Bottomley@...senpartnership.com>
Subject: Re: [Linux v5.17.9] -Wdeprecated-declarations warnings with LLVM-14
and OpenSSL v3.0.x
On Fri, May 27, 2022 at 9:47 AM Sedat Dilek <sedat.dilek@...il.com> wrote:
>
> On Tue, May 24, 2022 at 9:13 PM Sedat Dilek <sedat.dilek@...il.com> wrote:
> >
> > On Thu, May 19, 2022 at 12:01 PM Sedat Dilek <sedat.dilek@...il.com> wrote:
> > >
> > > [ CC Kees and Salvatore ]
> > >
> > > The Debian kernel-team ships a fix (4 hours young):
> > >
> > > commit: 13e234d459c11946efba647c3daf15e03abb0d99
> > > "sign-file: Convert API usage to support OpenSSL v3"
> > >
> > > *untested*
> >
> > @Kees:
> >
> > Any updates on the part of certs/extract-cert.c?
> >
>
> [ CC Tasmiya Nalatwad ]
>
> There are several more reports on this issue (see [3]).
>
> I did a quick test with Kees' patch from [2] and my attached patch
> "extract-cert: Suppress warnings with OpenSSL v3 API".
>
> Now, I see no more warnings due to OpenSSL v3 API:
>
> $ egrep 'sign-file|extract-cert'
> ../build-log_5.18.0-2-amd64-clang14-lto.txt
> 176: clang -Wp,-MMD,scripts/.sign-file.d -Wall -Wmissing-prototypes
> -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu11
> -Wdeclaration-after-statement -o scripts/sign-file
> scripts/sign-file.c -lcrypto
> 2053: clang -Wp,-MMD,certs/.extract-cert.d -Wall -Wmissing-prototypes
> -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu11
> -Wdeclaration-after-statement -Wno-deprecated-declarations -o
> certs/extract-cert certs/extract-cert.c -lcrypto
> 2068: certs/extract-cert "" certs/x509_certificate_list
> 2069: certs/extract-cert "" certs/signing_key.x509
>
> config-5.18-dileks: LLVM-14 + CONFIG_LTO_CLANG_THIN=y
>
> -Sedat-
>
> [1] https://marc.info/?l=linux-keyrings&m=165330697801670&w=2
> [2] https://salsa.debian.org/kernel-team/linux/-/commit/13e234d459c11946efba647c3daf15e03abb0d99
> [3] https://marc.info/?l=linux-keyrings&m=165330697801670&w=2
>
[ CC James Bottomley ]
[PATCH] extract-cert: Force build against OpenSSL API Compat v1.1.x
...works as well.
-Sedat-
> > >
> > > On Thu, May 19, 2022 at 11:55 AM Sedat Dilek <sedat.dilek@...il.com> wrote:
> > > >
> > > > Hi,
> > > >
> > > > here, I am on Debian/unstable AMD64.
> > > >
> > > > Recently (or still) there is/was a transition to OpenSSL see below link.
> > > >
> > > > The warnings look like:
> > > >
> > > > 189:scripts/sign-file.c:89:14: warning: 'ERR_get_error_line' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 201:scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 213:scripts/sign-file.c:142:3: warning: 'ENGINE_load_builtin_engines'
> > > > is deprecated [-Wdeprecated-declarations]
> > > > 225:scripts/sign-file.c:144:7: warning: 'ENGINE_by_id' is deprecated
> > > > [-Wdeprecated-declarations]
> > > > 238:146:7: warning: 'ENGINE_init' is deprecated [-Wdeprecated-declarations]
> > > > 250:scripts/sign-file.c:151:9: warning: 'ENGINE_ctrl_cmd_string' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 262:scripts/sign-file.c:153:17: warning: 'ENGINE_load_private_key' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 395:certs/extract-cert.c:46:14: warning: 'ERR_get_error_line' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 407:certs/extract-cert.c:59:9: warning: 'ERR_get_error_line' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 420:certs/extract-cert.c:124:3: warning: 'ENGINE_load_builtin_engines'
> > > > is deprecated [-Wdeprecated-declarations]
> > > > 432:certs/extract-cert.c:126:7: warning: 'ENGINE_by_id' is deprecated
> > > > [-Wdeprecated-declarations]
> > > > 444:certs/extract-cert.c:128:7: warning: 'ENGINE_init' is deprecated
> > > > [-Wdeprecated-declarations]
> > > > 456:certs/extract-cert.c:133:9: warning: 'ENGINE_ctrl_cmd_string' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 468:certs/extract-cert.c:134:3: warning: 'ENGINE_ctrl_cmd' is
> > > > deprecated [-Wdeprecated-declarations]
> > > >
> > > > More detailed output:
> > > >
> > > > 189:scripts/sign-file.c:89:14: warning: 'ERR_get_error_line' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 190- while ((e = ERR_get_error_line(&file, &line))) {
> > > > 191- ^
> > > > 192-/usr/include/openssl/err.h:410:1: note: 'ERR_get_error_line' has
> > > > been explicitly marked deprecated here
> > > > 193-OSSL_DEPRECATEDIN_3_0
> > > > 194-^
> > > > 195-/usr/include/openssl/macros.h:182:49: note: expanded from macro
> > > > 'OSSL_DEPRECATEDIN_3_0'
> > > > 196-# define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)
> > > > 197- ^
> > > > 198-/usr/include/openssl/macros.h:62:52: note: expanded from macro
> > > > 'OSSL_DEPRECATED'
> > > > 199-# define OSSL_DEPRECATED(since) __attribute__((deprecated))
> > > > 200- ^
> > > > 201:scripts/sign-file.c:102:9: warning: 'ERR_get_error_line' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 202- while (ERR_get_error_line(&file, &line)) {}
> > > > 203- ^
> > > > 204-/usr/include/openssl/err.h:410:1: note: 'ERR_get_error_line' has
> > > > been explicitly marked deprecated here
> > > > 205-OSSL_DEPRECATEDIN_3_0
> > > > 206-^
> > > > 207-/usr/include/openssl/macros.h:182:49: note: expanded from macro
> > > > 'OSSL_DEPRECATEDIN_3_0'
> > > > 208-# define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)
> > > > 209- ^
> > > > 210-/usr/include/openssl/macros.h:62:52: note: expanded from macro
> > > > 'OSSL_DEPRECATED'
> > > > 211-# define OSSL_DEPRECATED(since) __attribute__((deprecated))
> > > > 212- ^
> > > > 213:scripts/sign-file.c:142:3: warning: 'ENGINE_load_builtin_engines'
> > > > is deprecated [-Wdeprecated-declarations]
> > > > 214- ENGINE_load_builtin_engines();
> > > > 215- ^
> > > > 216-/usr/include/openssl/engine.h:358:1: note:
> > > > 'ENGINE_load_builtin_engines' has been explicitly marked deprecated
> > > > here
> > > > 217-OSSL_DEPRECATEDIN_3_0 void ENGINE_load_builtin_engines(void);
> > > > 218-^
> > > > 219-/usr/include/openssl/macros.h:182:49: note: expanded from macro
> > > > 'OSSL_DEPRECATEDIN_3_0'
> > > > 220-# define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)
> > > > 221- ^
> > > > 222-/usr/include/openssl/macros.h:62:52: note: expanded from macro
> > > > 'OSSL_DEPRECATED'
> > > > 223-# define OSSL_DEPRECATED(since) __attribute__((deprecated))
> > > > 224- ^
> > > > 225:scripts/sign-file.c:144:7: warning: 'ENGINE_by_id' is deprecated
> > > > [-Wdeprecated-declarations]
> > > > 226- e = ENGINE_by_id("pkcs11");
> > > > 227- ^
> > > > 228-/usr/include/openssl/engine.h:336:1: note: 'ENGINE_by_id' has been
> > > > explicitly marked deprecated here
> > > > 229-OSSL_DEPRECATEDIN_3_0 ENGINE *ENGINE_by_id(const char *id);
> > > > 230-^
> > > > 231-/usr/include/openssl/macros.h:182:49: note: expanded from macro
> > > > 'OSSL_DEPRECATEDIN_3_0'
> > > > 232-# define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)
> > > > 233- ^
> > > > 234-/usr/include/openssl/macros.h:62:52: note: expanded from macro
> > > > 'OSSL_DEPRECATED'
> > > > 235-# define OSSL_DEPRECATED(since) __attribute__((deprecated))
> > > > 236- ^
> > > > 237-scripts/sign-file.c: ld.lld -r -o
> > > > /home/dileks/src/linux-kernel/git/tools/objtool/arch/x86/objtool-in.o
> > > > /home/dileks/src/linux-kernel/git/tools/objtool/arch/x86
> > > > /special.o /home/dileks/src/linux-kernel/git/tools/objtool/arch/x86/decode.o
> > > > 238:146:7: warning: 'ENGINE_init' is deprecated [-Wdeprecated-declarations]
> > > > 239- if (ENGINE_init(e))
> > > > 240- ^
> > > > 241-/usr/include/openssl/engine.h:620:1: note: 'ENGINE_init' has been
> > > > explicitly marked deprecated here
> > > > 242-OSSL_DEPRECATEDIN_3_0 int ENGINE_init(ENGINE *e);
> > > > 243-^
> > > > 244-/usr/include/openssl/macros.h:182:49: note: expanded from macro
> > > > 'OSSL_DEPRECATEDIN_3_0'
> > > > 245-# define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)
> > > > 246- ^
> > > > 247-/usr/include/openssl/macros.h:62:52: note: expanded from macro
> > > > 'OSSL_DEPRECATED'
> > > > 248-# define OSSL_DEPRECATED(since) __attribute__((deprecated))
> > > > 249- ^
> > > > 250:scripts/sign-file.c:151:9: warning: 'ENGINE_ctrl_cmd_string' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 251- ERR(!ENGINE_ctrl_cmd_string(e, "PIN", key_pass, 0),
> > > > 252- ^
> > > > 253-/usr/include/openssl/engine.h:478:1: note:
> > > > 'ENGINE_ctrl_cmd_string' has been explicitly marked deprecated here
> > > > 254-OSSL_DEPRECATEDIN_3_0
> > > > 255-^
> > > > 256-/usr/include/openssl/macros.h:182:49: note: expanded from macro
> > > > 'OSSL_DEPRECATEDIN_3_0'
> > > > 257-# define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)
> > > > 258- ^
> > > > 259-/usr/include/openssl/macros.h:62:52: note: expanded from macro
> > > > 'OSSL_DEPRECATED'
> > > > 260-# define OSSL_DEPRECATED(since) __attribute__((deprecated))
> > > > 261- ^
> > > > 262:scripts/sign-file.c:153:17: warning: 'ENGINE_load_private_key' is
> > > > deprecated [-Wdeprecated-declarations]
> > > > 263- private_key = ENGINE_load_private_key(e, private_key_name,
> > > > 264- ^
> > > > 265-/usr/include/openssl/engine.h:637:1: note:
> > > > 'ENGINE_load_private_key' has been explicitly marked deprecated here
> > > > 266-OSSL_DEPRECATEDIN_3_0
> > > > 267-^
> > > > 268-/usr/include/openssl/macros.h:182:49: note: expanded from macro
> > > > 'OSSL_DEPRECATEDIN_3_0'
> > > > 269-# define OSSL_DEPRECATEDIN_3_0 OSSL_DEPRECATED(3.0)
> > > > 270- ^
> > > > 271-/usr/include/openssl/macros.h:62:52: note: expanded from macro
> > > > 'OSSL_DEPRECATED'
> > > > 272-# define OSSL_DEPRECATED(since) __attribute__((deprecated))
> > > > 273-
> > > >
> > > > Relevant OpenSSL v3.0.3 header files are attached.
> > > > My kernel-config, too.
> > > >
> > > > If you need further information, please let me know.
> > > >
> > > > Regards,
> > > > -Sedat-
> > > >
> > > > [1] https://release.debian.org/transitions/html/auto-openssl.html
View attachment "0001-extract-cert-Force-build-against-OpenSSL-API-Compat-.patch" of type "text/x-patch" (1026 bytes)
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