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MINOR: ssl: add notBefore and notAfter utility functions

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Extracting notBefore and notAfter as a string can be bothersome,
add 2 utility functions that returns the value in a static buffer.
This commit is contained in:
William Lallemand 2024-12-06 17:42:19 +01:00
parent c3ee4e375b
commit 5454824e31
2 changed files with 55 additions and 0 deletions
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2
include/haproxy/ssl_utils.h
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@ -45,6 +45,8 @@ void exclude_tls_grease(char *input, int len, struct buffer *output);
int x509_v_err_str_to_int(const char *str);
const char *x509_v_err_int_to_str(int code);
long asn1_generalizedtime_to_epoch(ASN1_GENERALIZEDTIME *d);
const char *x509_get_notbefore(X509 *cert);
const char *x509_get_notafter(X509 *cert);
#endif /* _HAPROXY_SSL_UTILS_H */
#endif /* USE_OPENSSL */

53
src/ssl_utils.c
View File

@ -700,3 +700,56 @@ long asn1_generalizedtime_to_epoch(ASN1_GENERALIZEDTIME *d)
return -1;
}
/* Return the nofAfter value as as string extracted from an X509 certificate
* The returned buffer is static and thread local.
*/
const char *x509_get_notafter(X509 *cert)
{
BIO *bio = NULL;
int write;
static THREAD_LOCAL char buf[256];
memset(buf, 0, sizeof(buf));
if ((bio = BIO_new(BIO_s_mem())) == NULL)
goto end;
if (ASN1_TIME_print(bio, X509_getm_notAfter(cert)) == 0)
goto end;
write = BIO_read(bio, buf, sizeof(buf)-1);
buf[write] = '\0';
BIO_free(bio);
return buf;
end:
BIO_free(bio);
return NULL;
}
/* Return the nofBefore value as as string extracted from an X509 certificate
* The returned buffer is static and thread local.
*/
const char *x509_get_notbefore(X509 *cert)
{
BIO *bio = NULL;
int write;
static THREAD_LOCAL char buf[256];
memset(buf, 0, sizeof(buf));
if ((bio = BIO_new(BIO_s_mem())) == NULL)
goto end;
if (ASN1_TIME_print(bio, X509_getm_notBefore(cert)) == 0)
goto end;
write = BIO_read(bio, buf, sizeof(buf)-1);
buf[write] = '\0';
BIO_free(bio);
return buf;
end:
BIO_free(bio);
return NULL;
}