[src/trunk]: src/sys Move address hashing from init_main.c to kern_sysctl.c.

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f385897fd4e6
branches:  trunk
changeset: 937821:f385897fd4e6
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Thu Aug 27 14:01:36 2020 +0000

description:
Move address hashing from init_main.c to kern_sysctl.c.

This way rump gets it automatically.  Make sure blake2s is in
librumpkern.so, not just in librumpkern_crypto.so, for this to work.

diffstat:

 sys/kern/init_main.c                        |  24 ++----------------------
 sys/kern/kern_sysctl.c                      |  26 ++++++++++++++++++++++++--
 sys/rump/kern/lib/libcrypto/Makefile        |   6 +-----
 sys/rump/librump/rumpkern/Makefile.rumpkern |   7 ++++++-
 4 files changed, 33 insertions(+), 30 deletions(-)

diffs (163 lines):

diff -r a86af7abb08d -r f385897fd4e6 sys/kern/init_main.c
--- a/sys/kern/init_main.c      Thu Aug 27 14:00:01 2020 +0000
+++ b/sys/kern/init_main.c      Thu Aug 27 14:01:36 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: init_main.c,v 1.528 2020/08/26 22:56:55 christos Exp $ */
+/*     $NetBSD: init_main.c,v 1.529 2020/08/27 14:01:36 riastradh Exp $        */
 
 /*-
  * Copyright (c) 2008, 2009, 2019 The NetBSD Foundation, Inc.
@@ -97,7 +97,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.528 2020/08/26 22:56:55 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: init_main.c,v 1.529 2020/08/27 14:01:36 riastradh Exp $");
 
 #include "opt_ddb.h"
 #include "opt_inet.h"
@@ -228,8 +228,6 @@
 
 #include <prop/proplib.h>
 
-#include <crypto/blake2/blake2s.h>
-
 #include <sys/userconf.h>
 
 extern struct lwp lwp0;
@@ -732,24 +730,6 @@
        /* NOTREACHED */
 }
 
-static uint8_t address_key[32];        /* key used in address hashing */
-static ONCE_DECL(random_inithook);
-
-static int
-random_address_init(void)
-{
-       cprng_strong(kern_cprng, address_key, sizeof(address_key), 0);
-       return 0;
-}
-
-void
-hash_value(void *d, size_t ds, const void *s, size_t ss)
-{       
-
-       RUN_ONCE(&random_inithook, random_address_init);
-       blake2s(d, ds, address_key, sizeof(address_key), s, ss);
-}
-
 /*
  * Configure the system's hardware.
  */
diff -r a86af7abb08d -r f385897fd4e6 sys/kern/kern_sysctl.c
--- a/sys/kern/kern_sysctl.c    Thu Aug 27 14:00:01 2020 +0000
+++ b/sys/kern/kern_sysctl.c    Thu Aug 27 14:01:36 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_sysctl.c,v 1.264 2019/07/03 17:31:32 maxv Exp $   */
+/*     $NetBSD: kern_sysctl.c,v 1.265 2020/08/27 14:01:36 riastradh Exp $      */
 
 /*-
  * Copyright (c) 2003, 2007, 2008 The NetBSD Foundation, Inc.
@@ -68,7 +68,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_sysctl.c,v 1.264 2019/07/03 17:31:32 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_sysctl.c,v 1.265 2020/08/27 14:01:36 riastradh Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_defcorename.h"
@@ -84,11 +84,15 @@
 #include <sys/ksyms.h>
 #include <sys/malloc.h>
 #include <sys/mount.h>
+#include <sys/cprng.h>
+#include <sys/once.h>
 #include <sys/syscallargs.h>
 #include <sys/kauth.h>
 #include <sys/ktrace.h>
 #include <sys/rndsource.h>
 
+#include <crypto/blake2/blake2s.h>
+
 #define        MAXDESCLEN      1024
 MALLOC_DEFINE(M_SYSCTLNODE, "sysctlnode", "sysctl node structures");
 MALLOC_DEFINE(M_SYSCTLDATA, "sysctldata", "misc sysctl data");
@@ -2816,3 +2820,21 @@
 
        return (0);
 }
+
+static uint8_t address_key[32];        /* key used in address hashing */
+static ONCE_DECL(random_inithook);
+
+static int
+random_address_init(void)
+{
+       cprng_strong(kern_cprng, address_key, sizeof(address_key), 0);
+       return 0;
+}
+
+void
+hash_value(void *d, size_t ds, const void *s, size_t ss)
+{       
+
+       RUN_ONCE(&random_inithook, random_address_init);
+       blake2s(d, ds, address_key, sizeof(address_key), s, ss);
+}
diff -r a86af7abb08d -r f385897fd4e6 sys/rump/kern/lib/libcrypto/Makefile
--- a/sys/rump/kern/lib/libcrypto/Makefile      Thu Aug 27 14:00:01 2020 +0000
+++ b/sys/rump/kern/lib/libcrypto/Makefile      Thu Aug 27 14:01:36 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.20 2020/08/26 15:49:56 riastradh Exp $
+#      $NetBSD: Makefile,v 1.21 2020/08/27 14:01:36 riastradh Exp $
 #
 
 SODIUM_IMPORTDIR=${.CURDIR}/../../../../external/isc/libsodium
@@ -6,7 +6,6 @@
 
 .PATH: ${.CURDIR}/../../../../crypto/adiantum                          \
        ${.CURDIR}/../../../../crypto/aes                               \
-       ${.CURDIR}/../../../../crypto/blake2                            \
        ${.CURDIR}/../../../../crypto/blowfish                          \
        ${.CURDIR}/../../../../crypto/camellia                          \
        ${.CURDIR}/../../../../crypto/cast128                           \
@@ -57,9 +56,6 @@
 # skipjack
 SRCS+= skipjack.c
 
-# BLAKE2
-SRCS+= blake2s.c
-
 # libsodium
 SODIUM_CPPFLAGS+=      -I${SODIUM_IMPORTDIR}/include
 SODIUM_CPPFLAGS+=      -I${SODIUM_IMPORTDIR}/dist/src/libsodium/include/sodium
diff -r a86af7abb08d -r f385897fd4e6 sys/rump/librump/rumpkern/Makefile.rumpkern
--- a/sys/rump/librump/rumpkern/Makefile.rumpkern       Thu Aug 27 14:00:01 2020 +0000
+++ b/sys/rump/librump/rumpkern/Makefile.rumpkern       Thu Aug 27 14:01:36 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.rumpkern,v 1.185 2020/08/14 00:53:16 riastradh Exp $
+#      $NetBSD: Makefile.rumpkern,v 1.186 2020/08/27 14:01:36 riastradh Exp $
 #
 
 IOCONFDIR:=    ${.PARSEDIR}
@@ -16,6 +16,7 @@
        ${RUMPTOP}/../conf                                      \
        ${RUMPTOP}/../dev                                       \
        ${RUMPTOP}/../crypto/nist_hash_drbg                     \
+       ${RUMPTOP}/../crypto/blake2                             \
        ${RUMPTOP}/../crypto/cprng_fast                         \
        ${RUMPTOP}/../crypto/chacha                             \
        ${RUMPTOP}/../secmodel                                  \
@@ -162,6 +163,10 @@
 SRCS+= chacha_ref.c
 SRCS+= chacha_selftest.c
 
+# BLAKE2
+# for hash_address
+SRCS+= blake2s.c
+
 .include "${RUMPTOP}/Makefile.rump"
 .include <bsd.own.mk>