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BUILD: ssl: define HAVE_CRYPTO_memcmp() based on the library version

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The build fails on versions older than 1.0.1d which is the first one
introducing CRYPTO_memcmp(), so let's have a define for this instead
of enabling it whenever USE_OPENSSL is set. One could also wonder why
we're relying on openssl for such a trivial thing, and a simple local
implementation could also allow to restore lexicographic ordering.
This commit is contained in:
Willy Tarreau 2021-05-09 11:59:49 +02:00
parent 48584645fb
commit 2a8a2f0223
2 changed files with 8 additions and 3 deletions
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5
include/haproxy/openssl-compat.h
View File

@ -65,6 +65,11 @@
#define HAVE_SSL_CTX_get0_privatekey
#endif
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000104fL
/* CRYPTO_memcmp() is present since openssl 1.0.1d */
#define HAVE_CRYPTO_memcmp
#endif
#if (defined(SN_ct_cert_scts) && !defined(OPENSSL_NO_TLSEXT))
#define HAVE_SSL_SCTL
#endif

6
src/sample.c
View File

@ -3278,7 +3278,7 @@ static int sample_conv_strcmp(const struct arg *arg_p, struct sample *smp, void
return 1;
}
#ifdef USE_OPENSSL
#if defined(HAVE_CRYPTO_memcmp)
/* Compares bytestring with a variable containing a bytestring. Return value
* is `true` if both bytestrings are bytewise identical and `false` otherwise.
*
@ -3605,7 +3605,7 @@ static int smp_check_strcmp(struct arg *args, struct sample_conv *conv,
return 0;
}
#ifdef USE_OPENSSL
#if defined(HAVE_CRYPTO_memcmp)
/* This function checks the "secure_memcmp" converter's arguments and extracts the
* variable name and its scope.
*/
@ -4287,7 +4287,7 @@ static struct sample_conv_kw_list sample_conv_kws = {ILH, {
#endif
{ "concat", sample_conv_concat, ARG3(1,STR,STR,STR), smp_check_concat, SMP_T_STR, SMP_T_STR },
{ "strcmp", sample_conv_strcmp, ARG1(1,STR), smp_check_strcmp, SMP_T_STR, SMP_T_SINT },
#ifdef USE_OPENSSL
#if defined(HAVE_CRYPTO_memcmp)
{ "secure_memcmp", sample_conv_secure_memcmp, ARG1(1,STR), smp_check_secure_memcmp, SMP_T_BIN, SMP_T_BOOL },
#endif