net-wireless/hostapd: add LibreSSL support

This patch adds support for LibreSSL and ensures compatibility with
dev-libs/libressl-2.7.x. Patch was backported from upstream commits:

ba3658cfff2278bc2ba24c32773962b37648d0b2
dee566d98e85e00b917d3eff42cd7e969de089cc

Closes: https://bugs.gentoo.org/567262
Package-Manager: Portage-2.3.29, Repoman-2.3.9

1 files changed, 106 insertions, 0 deletions

diff --git a/net-wireless/hostapd/files/hostapd-2.6-libressl-compatibility.patch b/net-wireless/hostapd/files/hostapd-2.6-libressl-compatibility.patch
new file mode 100644
index 000000000000..025da58028da
--- /dev/null
+++ b/net-wireless/hostapd/files/hostapd-2.6-libressl-compatibility.patch
@@ -0,0 +1,106 @@
+diff --git a/src/crypto/crypto_openssl.c b/src/crypto/crypto_openssl.c
+index 19e0e2be8..6585c0245 100644
+--- a/src/crypto/crypto_openssl.c
++++ b/src/crypto/crypto_openssl.c
+@@ -33,7 +33,9 @@
+ #include "aes_wrap.h"
+ #include "crypto.h"
+ 
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++	(defined(LIBRESSL_VERSION_NUMBER) && \
++	 LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ /* Compatibility wrappers for older versions. */
+ 
+ static HMAC_CTX * HMAC_CTX_new(void)
+@@ -79,7 +81,9 @@ static void EVP_MD_CTX_free(EVP_MD_CTX *ctx)
+ 
+ static BIGNUM * get_group5_prime(void)
+ {
+-#if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
++#if OPENSSL_VERSION_NUMBER >= 0x10100000L && \
++	!(defined(LIBRESSL_VERSION_NUMBER) && \
++	LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ 	return BN_get_rfc3526_prime_1536(NULL);
+ #elif !defined(OPENSSL_IS_BORINGSSL)
+ 	return get_rfc3526_prime_1536(NULL);
+@@ -611,7 +615,9 @@ void crypto_cipher_deinit(struct crypto_cipher *ctx)
+ 
+ void * dh5_init(struct wpabuf **priv, struct wpabuf **publ)
+ {
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++	(defined(LIBRESSL_VERSION_NUMBER) && \
++	LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ 	DH *dh;
+ 	struct wpabuf *pubkey = NULL, *privkey = NULL;
+ 	size_t publen, privlen;
+@@ -712,7 +718,9 @@ err:
+ 
+ void * dh5_init_fixed(const struct wpabuf *priv, const struct wpabuf *publ)
+ {
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++	(defined(LIBRESSL_VERSION_NUMBER) && \
++	LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ 	DH *dh;
+ 
+ 	dh = DH_new();
+diff --git a/src/crypto/tls_openssl.c b/src/crypto/tls_openssl.c
+index 23ac64b48..91acc579d 100644
+--- a/src/crypto/tls_openssl.c
++++ b/src/crypto/tls_openssl.c
+@@ -59,7 +59,8 @@ typedef int stack_index_t;
+ #endif /* SSL_set_tlsext_status_type */
+ 
+ #if (OPENSSL_VERSION_NUMBER < 0x10100000L || \
+-     defined(LIBRESSL_VERSION_NUMBER)) &&    \
++	(defined(LIBRESSL_VERSION_NUMBER) && \
++	LIBRESSL_VERSION_NUMBER < 0x20700000L)) && \
+     !defined(BORINGSSL_API_VERSION)
+ /*
+  * SSL_get_client_random() and SSL_get_server_random() were added in OpenSSL
+@@ -919,7 +920,9 @@ void * tls_init(const struct tls_config *conf)
+ 		}
+ #endif /* OPENSSL_FIPS */
+ #endif /* CONFIG_FIPS */
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++        (defined(LIBRESSL_VERSION_NUMBER) && \
++        LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ 		SSL_load_error_strings();
+ 		SSL_library_init();
+ #ifndef OPENSSL_NO_SHA256
+@@ -1043,7 +1046,9 @@ void tls_deinit(void *ssl_ctx)
+ 
+ 	tls_openssl_ref_count--;
+ 	if (tls_openssl_ref_count == 0) {
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++	(defined(LIBRESSL_VERSION_NUMBER) && \
++	LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ #ifndef OPENSSL_NO_ENGINE
+ 		ENGINE_cleanup();
+ #endif /* OPENSSL_NO_ENGINE */
+@@ -3105,7 +3110,9 @@ int tls_connection_get_random(void *ssl_ctx, struct tls_connection *conn,
+ #ifdef OPENSSL_NEED_EAP_FAST_PRF
+ static int openssl_get_keyblock_size(SSL *ssl)
+ {
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++        (defined(LIBRESSL_VERSION_NUMBER) && \
++        LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ 	const EVP_CIPHER *c;
+ 	const EVP_MD *h;
+ 	int md_size;
+@@ -4159,7 +4166,9 @@ static int tls_sess_sec_cb(SSL *s, void *secret, int *secret_len,
+ 	struct tls_connection *conn = arg;
+ 	int ret;
+ 
+-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
++#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
++        (defined(LIBRESSL_VERSION_NUMBER) && \
++        LIBRESSL_VERSION_NUMBER < 0x20700000L)
+ 	if (conn == NULL || conn->session_ticket_cb == NULL)
+ 		return 0;
+