From: Roberto Sassu <roberto.sassu@xxxxxxxxxx>
commit 5b245985a6de5ac18b5088c37068816d413fb8ed upstream.
Switch to new EVP API for detecting libcrypto, as Fedora 36 returns an
error when it encounters the deprecated function MD5_Init() and the others.
The error would be interpreted as missing libcrypto, while in reality it is
not.
Fixes: 6e8ccb4f624a73c5 ("tools/bpf: properly account for libbfd variations")
Signed-off-by: Roberto Sassu <roberto.sassu@xxxxxxxxxx>
Cc: Alexei Starovoitov <ast@xxxxxxxxxx>
Cc: Andrii Nakryiko <andrii@xxxxxxxxxx>
Cc: bpf@xxxxxxxxxxxxxxx
Cc: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: John Fastabend <john.fastabend@xxxxxxxxx>
Cc: KP Singh <kpsingh@xxxxxxxxxx>
Cc: llvm@xxxxxxxxxxxxxxx
Cc: Martin KaFai Lau <martin.lau@xxxxxxxxx>
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Cc: Nick Terrell <terrelln@xxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Quentin Monnet <quentin@xxxxxxxxxxxxx>
Cc: Song Liu <song@xxxxxxxxxx>
Cc: Stanislav Fomichev <sdf@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220719170555.2576993-4-roberto.sassu@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/build/feature/test-libcrypto.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
--- a/tools/build/feature/test-libcrypto.c
+++ b/tools/build/feature/test-libcrypto.c
@@ -1,16 +1,23 @@
// SPDX-License-Identifier: GPL-2.0
+#include <openssl/evp.h>
#include <openssl/sha.h>
#include <openssl/md5.h>
int main(void)
{
- MD5_CTX context;
+ EVP_MD_CTX *mdctx;
unsigned char md[MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH];
unsigned char dat[] = "12345";
+ unsigned int digest_len;
- MD5_Init(&context);
- MD5_Update(&context, &dat[0], sizeof(dat));
- MD5_Final(&md[0], &context);
+ mdctx = EVP_MD_CTX_new();
+ if (!mdctx)
+ return 0;
+
+ EVP_DigestInit_ex(mdctx, EVP_md5(), NULL);
+ EVP_DigestUpdate(mdctx, &dat[0], sizeof(dat));
+ EVP_DigestFinal_ex(mdctx, &md[0], &digest_len);
+ EVP_MD_CTX_free(mdctx);
SHA1(&dat[0], sizeof(dat), &md[0]);
