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Commit: 66edac6849b820010afec9650e6ab4460da8f4c5
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From 8f948ed68a4ed6c05ff66d822711e3b70ae4bb3f Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Mon, 27 Sep 2021 13:32:03 +0900
Subject: [PATCH 1/5] ext/openssl/ossl.h: add helper macros for
 OpenSSL/LibreSSL versions

Add following convenient macros:

 - OSSL_IS_LIBRESSL
 - OSSL_OPENSSL_PREREQ(maj, min, pat)
 - OSSL_LIBRESSL_PREREQ(maj, min, pat)
---
 ext/openssl/ossl.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/ext/openssl/ossl.h b/ext/openssl/ossl.h
index c20f506bda..a0cef29d74 100644
--- a/ext/openssl/ossl.h
+++ b/ext/openssl/ossl.h
@@ -42,6 +42,18 @@
 #include <openssl/evp.h>
 #include <openssl/dh.h>
 
+#ifndef LIBRESSL_VERSION_NUMBER
+# define OSSL_IS_LIBRESSL 0
+# define OSSL_OPENSSL_PREREQ(maj, min, pat) \
+      (OPENSSL_VERSION_NUMBER >= (maj << 28) | (min << 20) | (pat << 12))
+# define OSSL_LIBRESSL_PREREQ(maj, min, pat) 0
+#else
+# define OSSL_IS_LIBRESSL 1
+# define OSSL_OPENSSL_PREREQ(maj, min, pat) 0
+# define OSSL_LIBRESSL_PREREQ(maj, min, pat) \
+      (LIBRESSL_VERSION_NUMBER >= (maj << 28) | (min << 20) | (pat << 12))
+#endif
+
 /*
  * Common Module
  */
-- 
2.32.0


From bbf235091e49807ece8f3a3df95bbfcc9d3ab43d Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Sat, 22 Feb 2020 05:37:01 +0900
Subject: [PATCH 2/5] ts: use TS_VERIFY_CTX_set_certs instead of
 TS_VERIFY_CTS_set_certs

OpenSSL 3.0 fixed the typo in the function name and replaced the
current 'CTS' version with a macro.
---
 ext/openssl/extconf.rb        | 5 ++++-
 ext/openssl/openssl_missing.h | 5 +++++
 ext/openssl/ossl_ts.c         | 2 +-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/ext/openssl/extconf.rb b/ext/openssl/extconf.rb
index 17d93443fc..09cae05b72 100644
--- a/ext/openssl/extconf.rb
+++ b/ext/openssl/extconf.rb
@@ -165,7 +165,7 @@ def find_openssl_library
 have_func("TS_STATUS_INFO_get0_status")
 have_func("TS_STATUS_INFO_get0_text")
 have_func("TS_STATUS_INFO_get0_failure_info")
-have_func("TS_VERIFY_CTS_set_certs")
+have_func("TS_VERIFY_CTS_set_certs(NULL, NULL)", "openssl/ts.h")
 have_func("TS_VERIFY_CTX_set_store")
 have_func("TS_VERIFY_CTX_add_flags")
 have_func("TS_RESP_CTX_set_time_cb")
@@ -174,6 +174,9 @@ def find_openssl_library
 
 # added in 1.1.1
 have_func("EVP_PKEY_check")
+ 
+# added in 3.0.0
+have_func("TS_VERIFY_CTX_set_certs(NULL, NULL)", "openssl/ts.h")
 
 Logging::message "=== Checking done. ===\n"
 
diff --git a/ext/openssl/openssl_missing.h b/ext/openssl/openssl_missing.h
index e575415f49..fe486bcfcf 100644
--- a/ext/openssl/openssl_missing.h
+++ b/ext/openssl/openssl_missing.h
@@ -236,4 +236,9 @@ IMPL_PKEY_GETTER(EC_KEY, ec)
     } while (0)
 #endif
 
+/* added in 3.0.0 */
+#if !defined(HAVE_TS_VERIFY_CTX_SET_CERTS)
+#  define TS_VERIFY_CTX_set_certs(ctx, crts) TS_VERIFY_CTS_set_certs(ctx, crts)
+#endif
+
 #endif /* _OSSL_OPENSSL_MISSING_H_ */
diff --git a/ext/openssl/ossl_ts.c b/ext/openssl/ossl_ts.c
index 692c0d620f..f1da7c1947 100644
--- a/ext/openssl/ossl_ts.c
+++ b/ext/openssl/ossl_ts.c
@@ -820,7 +820,7 @@ ossl_ts_resp_verify(int argc, VALUE *argv, VALUE self)
         X509_up_ref(cert);
     }
 
-    TS_VERIFY_CTS_set_certs(ctx, x509inter);
+    TS_VERIFY_CTX_set_certs(ctx, x509inter);
     TS_VERIFY_CTX_add_flags(ctx, TS_VFY_SIGNATURE);
     TS_VERIFY_CTX_set_store(ctx, x509st);
 
-- 
2.32.0


From 5fba3bc1df93ab6abc3ea53be3393480f36ea259 Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Fri, 19 Mar 2021 19:18:25 +0900
Subject: [PATCH 3/5] ssl: use SSL_get_rbio() to check if SSL is started or not

Use SSL_get_rbio() instead of SSL_get_fd(). SSL_get_fd() internally
calls SSL_get_rbio() and it's enough for our purpose.

In OpenSSL 3.0, SSL_get_fd() leaves an entry in the OpenSSL error queue
if BIO has not been set up yet, and we would have to clean it up.
---
 ext/openssl/ossl_ssl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/openssl/ossl_ssl.c b/ext/openssl/ossl_ssl.c
index 4b7efa39f5..ec430bfb0c 100644
--- a/ext/openssl/ossl_ssl.c
+++ b/ext/openssl/ossl_ssl.c
@@ -1535,8 +1535,8 @@ ossl_sslctx_flush_sessions(int argc, VALUE *argv, VALUE self)
 static inline int
 ssl_started(SSL *ssl)
 {
-    /* the FD is set in ossl_ssl_setup(), called by #connect or #accept */
-    return SSL_get_fd(ssl) >= 0;
+    /* BIO is created through ossl_ssl_setup(), called by #connect or #accept */
+    return SSL_get_rbio(ssl) != NULL;
 }
 
 static void
-- 
2.32.0

From 0a253027e6be47c0b7fd8b664f1048f24d7ca657 Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Thu, 22 Apr 2021 13:57:47 +0900
Subject: [PATCH 4/5] digest: use EVP_MD_CTX_get0_md() instead of
 EVP_MD_CTX_md() if exists

The function was renamed in OpenSSL 3.0 due to the change of the
lifetime of EVP_MD objects. They are no longer necessarily statically
allocated and can be reference-counted -- when an EVP_MD_CTX is free'd,
the associated EVP_MD can also become inaccessible.

Currently Ruby/OpenSSL only handles builtin algorithms, so no special
handling is needed except for adapting to the rename.
---
 ext/openssl/extconf.rb        | 1 +
 ext/openssl/openssl_missing.h | 4 ++++
 ext/openssl/ossl_digest.c     | 6 +++---
 ext/openssl/ossl_hmac.c       | 2 +-
 4 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/ext/openssl/extconf.rb b/ext/openssl/extconf.rb
index 98f96afe..842b7f5b 100644
--- a/ext/openssl/extconf.rb
+++ b/ext/openssl/extconf.rb
@@ -177,6 +177,7 @@ def find_openssl_library
  
 # added in 3.0.0
 have_func("TS_VERIFY_CTX_set_certs(NULL, NULL)", "openssl/ts.h")
+have_func("EVP_MD_CTX_get0_md")
 
 Logging::message "=== Checking done. ===\n"
 
diff --git a/ext/openssl/openssl_missing.h b/ext/openssl/openssl_missing.h
index 1b1a54a8..64212349 100644
--- a/ext/openssl/openssl_missing.h
+++ b/ext/openssl/openssl_missing.h
@@ -241,4 +241,8 @@ IMPL_PKEY_GETTER(EC_KEY, ec)
 #  define TS_VERIFY_CTX_set_certs(ctx, crts) TS_VERIFY_CTS_set_certs(ctx, crts)
 #endif
 
+#ifndef HAVE_EVP_MD_CTX_GET0_MD
+#  define EVP_MD_CTX_get0_md(ctx) EVP_MD_CTX_md(ctx)
+#endif
+
 #endif /* _OSSL_OPENSSL_MISSING_H_ */
diff --git a/ext/openssl/ossl_digest.c b/ext/openssl/ossl_digest.c
index b2506de7..fc326ec1 100644
--- a/ext/openssl/ossl_digest.c
+++ b/ext/openssl/ossl_digest.c
@@ -63,7 +63,7 @@ ossl_evp_get_digestbyname(VALUE obj)
 
         GetDigest(obj, ctx);
 
-        md = EVP_MD_CTX_md(ctx);
+        md = EVP_MD_CTX_get0_md(ctx);
     }
 
     return md;
@@ -176,7 +176,7 @@ ossl_digest_reset(VALUE self)
     EVP_MD_CTX *ctx;
 
     GetDigest(self, ctx);
-    if (EVP_DigestInit_ex(ctx, EVP_MD_CTX_md(ctx), NULL) != 1) {
+    if (EVP_DigestInit_ex(ctx, EVP_MD_CTX_get0_md(ctx), NULL) != 1) {
 	ossl_raise(eDigestError, "Digest initialization failed.");
     }
 
@@ -259,7 +259,7 @@ ossl_digest_name(VALUE self)
 
     GetDigest(self, ctx);
 
-    return rb_str_new2(EVP_MD_name(EVP_MD_CTX_md(ctx)));
+    return rb_str_new_cstr(EVP_MD_name(EVP_MD_CTX_get0_md(ctx)));
 }
 
 /*
diff --git a/ext/openssl/ossl_hmac.c b/ext/openssl/ossl_hmac.c
index a21db6c4..2642728b 100644
--- a/ext/openssl/ossl_hmac.c
+++ b/ext/openssl/ossl_hmac.c
@@ -239,7 +239,7 @@ ossl_hmac_reset(VALUE self)
 
     GetHMAC(self, ctx);
     pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx));
-    if (EVP_DigestSignInit(ctx, NULL, EVP_MD_CTX_md(ctx), NULL, pkey) != 1)
+    if (EVP_DigestSignInit(ctx, NULL, EVP_MD_CTX_get0_md(ctx), NULL, pkey) != 1)
         ossl_raise(eHMACError, "EVP_DigestSignInit");
 
     return self;

From c106d888c62e44a11cdbba5e4d2d0cb837ec3e52 Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Tue, 22 Jun 2021 18:50:17 +0900
Subject: [PATCH 5/5] hmac: use EVP_MD_CTX_get_pkey_ctx() instead of
 EVP_MD_CTX_pkey_ctx()

OpenSSL 3.0 renamed EVP_MD_CTX_pkey_ctx() to include "get" in the
function name. Adjust compatibility macro so that we can use the new
function name for all OpenSSL 1.0.2-3.0.
---
 ext/openssl/extconf.rb        |  1 +
 ext/openssl/openssl_missing.h | 16 ++++++++++++----
 ext/openssl/ossl_hmac.c       |  2 +-
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/ext/openssl/extconf.rb b/ext/openssl/extconf.rb
index 842b7f5b..d9d34b7c 100644
--- a/ext/openssl/extconf.rb
+++ b/ext/openssl/extconf.rb
@@ -178,6 +178,7 @@ def find_openssl_library
 # added in 3.0.0
 have_func("TS_VERIFY_CTX_set_certs(NULL, NULL)", "openssl/ts.h")
 have_func("EVP_MD_CTX_get0_md")
+have_func("EVP_MD_CTX_get_pkey_ctx")
 
 Logging::message "=== Checking done. ===\n"
 
diff --git a/ext/openssl/openssl_missing.h b/ext/openssl/openssl_missing.h
index 64212349..55c4f378 100644
--- a/ext/openssl/openssl_missing.h
+++ b/ext/openssl/openssl_missing.h
@@ -42,10 +42,6 @@ int ossl_EC_curve_nist2nid(const char *);
 #  define EVP_MD_CTX_free EVP_MD_CTX_destroy
 #endif
 
-#if !defined(HAVE_EVP_MD_CTX_PKEY_CTX)
-#  define EVP_MD_CTX_pkey_ctx(x) (x)->pctx
-#endif
-
 #if !defined(HAVE_X509_STORE_GET_EX_DATA)
 #  define X509_STORE_get_ex_data(x, idx) \
 	CRYPTO_get_ex_data(&(x)->ex_data, (idx))
@@ -245,4 +241,16 @@ IMPL_PKEY_GETTER(EC_KEY, ec)
 #  define EVP_MD_CTX_get0_md(ctx) EVP_MD_CTX_md(ctx)
 #endif
 
+/*
+ * OpenSSL 1.1.0 added EVP_MD_CTX_pkey_ctx(), and then it was renamed to
+ * EVP_MD_CTX_get_pkey_ctx(x) in OpenSSL 3.0.
+ */
+#ifndef HAVE_EVP_MD_CTX_GET_PKEY_CTX
+# ifdef HAVE_EVP_MD_CTX_PKEY_CTX
+#  define EVP_MD_CTX_get_pkey_ctx(x) EVP_MD_CTX_pkey_ctx(x)
+# else
+#  define EVP_MD_CTX_get_pkey_ctx(x) (x)->pctx
+# endif
+#endif
+
 #endif /* _OSSL_OPENSSL_MISSING_H_ */
diff --git a/ext/openssl/ossl_hmac.c b/ext/openssl/ossl_hmac.c
index 2642728b..f89ff2f9 100644
--- a/ext/openssl/ossl_hmac.c
+++ b/ext/openssl/ossl_hmac.c
@@ -238,7 +238,7 @@ ossl_hmac_reset(VALUE self)
     EVP_PKEY *pkey;
 
     GetHMAC(self, ctx);
-    pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_pkey_ctx(ctx));
+    pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_get_pkey_ctx(ctx));
     if (EVP_DigestSignInit(ctx, NULL, EVP_MD_CTX_get0_md(ctx), NULL, pkey) != 1)
         ossl_raise(eHMACError, "EVP_DigestSignInit");
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