Remove ERR_get_state

The ERR_STATE struct is an unused implementation detail of the horrific
error stack code. It is the last public consumer of CRYPTO_THREAD
internals. Make this and its accessor internal so we can make the
CRYPTO_THREAD struct opaque.

ok jsing

5 files changed, 17 insertions, 19 deletions

diff --git a/lib/libcrypto/Symbols.list b/lib/libcrypto/Symbols.list
index de97306613d..715999858e7 100644
--- a/lib/libcrypto/Symbols.list
+++ b/lib/libcrypto/Symbols.list
@@ -1086,7 +1086,6 @@ ERR_get_error
 ERR_get_error_line
 ERR_get_error_line_data
 ERR_get_next_error_library
-ERR_get_state
 ERR_lib_error_string
 ERR_load_ASN1_strings
 ERR_load_BIO_strings
diff --git a/lib/libcrypto/Symbols.namespace b/lib/libcrypto/Symbols.namespace
index a540b310489..6aa4468fae1 100644
--- a/lib/libcrypto/Symbols.namespace
+++ b/lib/libcrypto/Symbols.namespace
@@ -1328,7 +1328,6 @@ _libre_ERR_load_crypto_strings
 _libre_ERR_free_strings
 _libre_ERR_remove_thread_state
 _libre_ERR_remove_state
-_libre_ERR_get_state
 _libre_ERR_get_next_error_library
 _libre_ERR_set_mark
 _libre_ERR_pop_to_mark
diff --git a/lib/libcrypto/err/err.c b/lib/libcrypto/err/err.c
index 036396bc1a9..acbcda76cc9 100644
--- a/lib/libcrypto/err/err.c
+++ b/lib/libcrypto/err/err.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: err.c,v 1.58 2024/02/24 07:53:01 tb Exp $ */
+/* $OpenBSD: err.c,v 1.59 2024/03/02 10:30:48 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -127,9 +127,22 @@ DECLARE_LHASH_OF(ERR_STATE);
 
 typedef struct st_ERR_FNS ERR_FNS;
 
+typedef struct err_state_st {
+	CRYPTO_THREADID tid;
+	int err_flags[ERR_NUM_ERRORS];
+	unsigned long err_buffer[ERR_NUM_ERRORS];
+	char *err_data[ERR_NUM_ERRORS];
+	int err_data_flags[ERR_NUM_ERRORS];
+	const char *err_file[ERR_NUM_ERRORS];
+	int err_line[ERR_NUM_ERRORS];
+	int top, bottom;
+} ERR_STATE;
+
 static void err_load_strings(int lib, ERR_STRING_DATA *str);
 
+static ERR_STATE *ERR_get_state(void);
 static void ERR_STATE_free(ERR_STATE *s);
+
 #ifndef OPENSSL_NO_ERR
 static ERR_STRING_DATA ERR_str_libraries[] = {
 	{ERR_PACK(ERR_LIB_NONE,0,0),		"unknown library"},
@@ -1020,7 +1033,7 @@ ERR_remove_state(unsigned long pid)
 }
 LCRYPTO_ALIAS(ERR_remove_state);
 
-ERR_STATE *
+static ERR_STATE *
 ERR_get_state(void)
 {
 	static ERR_STATE fallback;
@@ -1058,7 +1071,6 @@ ERR_get_state(void)
 	}
 	return ret;
 }
-LCRYPTO_ALIAS(ERR_get_state);
 
 int
 ERR_get_next_error_library(void)
diff --git a/lib/libcrypto/err/err.h b/lib/libcrypto/err/err.h
index d85de24cb11..e0b4354e49b 100644
--- a/lib/libcrypto/err/err.h
+++ b/lib/libcrypto/err/err.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: err.h,v 1.31 2023/07/28 10:23:19 tb Exp $ */
+/* $OpenBSD: err.h,v 1.32 2024/03/02 10:30:48 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -143,16 +143,6 @@ extern "C" {
 #define ERR_FLAG_MARK		0x01
 
 #define ERR_NUM_ERRORS	16
-typedef struct err_state_st {
-	CRYPTO_THREADID tid;
-	int err_flags[ERR_NUM_ERRORS];
-	unsigned long err_buffer[ERR_NUM_ERRORS];
-	char *err_data[ERR_NUM_ERRORS];
-	int err_data_flags[ERR_NUM_ERRORS];
-	const char *err_file[ERR_NUM_ERRORS];
-	int err_line[ERR_NUM_ERRORS];
-	int top, bottom;
-} ERR_STATE;
 
 /* library */
 #define ERR_LIB_NONE		1
@@ -397,7 +387,6 @@ void ERR_free_strings(void);
 void ERR_remove_thread_state(const CRYPTO_THREADID *tid);
 /* Wrapped in OPENSSL_NO_DEPRECATED in 0.9.8. Still used in 2023. */
 void ERR_remove_state(unsigned long pid);
-ERR_STATE *ERR_get_state(void);
 
 int ERR_get_next_error_library(void);
 
diff --git a/lib/libcrypto/hidden/openssl/err.h b/lib/libcrypto/hidden/openssl/err.h
index 036ead8c089..08f97e1c5db 100644
--- a/lib/libcrypto/hidden/openssl/err.h
+++ b/lib/libcrypto/hidden/openssl/err.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: err.h,v 1.4 2023/07/28 10:23:19 tb Exp $ */
+/* $OpenBSD: err.h,v 1.5 2024/03/02 10:30:48 tb Exp $ */
 /*
  * Copyright (c) 2023 Bob Beck <beck@openbsd.org>
  *
@@ -53,7 +53,6 @@ LCRYPTO_USED(ERR_load_crypto_strings);
 LCRYPTO_USED(ERR_free_strings);
 LCRYPTO_USED(ERR_remove_thread_state);
 LCRYPTO_USED(ERR_remove_state);
-LCRYPTO_USED(ERR_get_state);
 LCRYPTO_USED(ERR_get_next_error_library);
 LCRYPTO_USED(ERR_set_mark);
 LCRYPTO_USED(ERR_pop_to_mark);