Module Name:    src
Committed By:   riastradh
Date:           Tue Jun 30 16:21:17 UTC 2020

Modified Files:
        src/sys/crypto/aes: aes_impl.c

Log Message:
New sysctl node hw.aes_impl for selected AES implementation.


To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/crypto/aes/aes_impl.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/crypto/aes/aes_impl.c
diff -u src/sys/crypto/aes/aes_impl.c:1.2 src/sys/crypto/aes/aes_impl.c:1.3
--- src/sys/crypto/aes/aes_impl.c:1.2	Mon Jun 29 23:36:59 2020
+++ src/sys/crypto/aes/aes_impl.c	Tue Jun 30 16:21:17 2020
@@ -1,4 +1,4 @@
-/*	$NetBSD: aes_impl.c,v 1.2 2020/06/29 23:36:59 riastradh Exp $	*/
+/*	$NetBSD: aes_impl.c,v 1.3 2020/06/30 16:21:17 riastradh Exp $	*/
 
 /*-
  * Copyright (c) 2020 The NetBSD Foundation, Inc.
@@ -27,12 +27,13 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: aes_impl.c,v 1.2 2020/06/29 23:36:59 riastradh Exp $");
+__KERNEL_RCSID(1, "$NetBSD: aes_impl.c,v 1.3 2020/06/30 16:21:17 riastradh Exp $");
 
 #include <sys/types.h>
 #include <sys/kernel.h>
 #include <sys/module.h>
 #include <sys/once.h>
+#include <sys/sysctl.h>
 #include <sys/systm.h>
 
 #include <crypto/aes/aes.h>
@@ -43,6 +44,30 @@ static int aes_selftest_stdkeysched(void
 static const struct aes_impl	*aes_md_impl	__read_mostly;
 static const struct aes_impl	*aes_impl	__read_mostly;
 
+static int
+sysctl_hw_aes_impl(SYSCTLFN_ARGS)
+{
+	struct sysctlnode node;
+
+	KASSERTMSG(aes_impl != NULL,
+	    "sysctl ran before AES implementation was selected");
+
+	node = *rnode;
+	node.sysctl_data = __UNCONST(aes_impl->ai_name);
+	node.sysctl_size = strlen(aes_impl->ai_name) + 1;
+	return sysctl_lookup(SYSCTLFN_CALL(&node));
+}
+
+SYSCTL_SETUP(sysctl_hw_aes_setup, "sysctl hw.aes_impl setup")
+{
+
+	sysctl_createv(clog, 0, NULL, NULL,
+	    CTLFLAG_PERMANENT|CTLFLAG_READONLY, CTLTYPE_STRING, "aes_impl",
+	    SYSCTL_DESCR("Selected AES implementation"),
+	    sysctl_hw_aes_impl, 0, NULL, 0,
+	    CTL_HW, CTL_CREATE, CTL_EOL);
+}
+
 /*
  * The timing of AES implementation selection is finicky:
  *

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