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Date: Sun, 15 Sep 2024 18:41:20 +0800
To: linuxptp-devel@lists.nwtime.org
From: Shenghao Yang <me@shenghaoyang.info>
Subject: [PATCH] sad: allow disabling MAC library autodetection
Avoids ptp4l linking against MAC libraries in a build
environment with insufficient isolation (OpenWRT).
NO_AUTODETECT_SAD_MAC_LIB can be set to any value to disable
autodetection, and then one of the SAD_MAC_* variables can be
used to choose a preferred MAC implementation.
Signed-off-by: Shenghao Yang <me@shenghaoyang.info>
---
incdefs.sh | 154 ++++++++++++++++++++++++++++-------------------------
1 file changed, 81 insertions(+), 73 deletions(-)
--- a/incdefs.sh
+++ b/incdefs.sh
@@ -52,94 +52,102 @@ user_flags()
done
# Look for nettle support.
- for d in $dirs; do
- sdirs=$(find $d -type d -name "nettle")
- for s in $sdirs; do
- have_hmac="0"
- files=$(find $s -type f -name hmac.h)
- for f in $files; do
- if grep -q hmac_sha256_set_key $f; then
- have_hmac="1"
- break 1;
- fi
- done
- have_memops="0"
- files=$(find $s -type f -name memops.h)
- for f in $files; do
- if grep -q memeql_sec $f; then
- have_memops="1"
- break 1;
- fi
- done
- have_nettle_meta="0"
- files=$(find $s -type f -name nettle-meta.h)
- for f in $files; do
- if grep -q nettle_get_macs $f; then
- have_nettle_meta="1"
- break 1;
+ if [ "x$NO_AUTODETECT_SAD_MAC_LIB" = "x" ] || [ "x$SAD_MAC_NETTLE" != "x" ]; then
+ for d in $dirs; do
+ sdirs=$(find $d -type d -name "nettle")
+ for s in $sdirs; do
+ have_hmac="0"
+ files=$(find $s -type f -name hmac.h)
+ for f in $files; do
+ if grep -q hmac_sha256_set_key $f; then
+ have_hmac="1"
+ break 1;
+ fi
+ done
+ have_memops="0"
+ files=$(find $s -type f -name memops.h)
+ for f in $files; do
+ if grep -q memeql_sec $f; then
+ have_memops="1"
+ break 1;
+ fi
+ done
+ have_nettle_meta="0"
+ files=$(find $s -type f -name nettle-meta.h)
+ for f in $files; do
+ if grep -q nettle_get_macs $f; then
+ have_nettle_meta="1"
+ break 1;
+ fi
+ done
+ if [ $have_hmac = "1" ] &&
+ [ $have_memops = "1" ] &&
+ [ $have_nettle_meta = "1" ]; then
+ printf " -DHAVE_NETTLE"
+ break 2
fi
done
- if [ $have_hmac = "1" ] &&
- [ $have_memops = "1" ] &&
- [ $have_nettle_meta = "1" ]; then
- printf " -DHAVE_NETTLE"
- break 2
- fi
done
- done
+ fi
# Look for gnutls support.
- for d in $dirs; do
- sdirs=$(find $d -type d -name "gnutls")
- for s in $sdirs; do
- files=$(find $s -type f -name crypto.h)
- for f in $files; do
- if grep -q gnutls_hmac_init $f; then
- printf " -DHAVE_GNUTLS"
- break 3
- fi
+ if [ "x$NO_AUTODETECT_SAD_MAC_LIB" = "x" ] || [ "x$SAD_MAC_GNUTLS" != "x" ]; then
+ for d in $dirs; do
+ sdirs=$(find $d -type d -name "gnutls")
+ for s in $sdirs; do
+ files=$(find $s -type f -name crypto.h)
+ for f in $files; do
+ if grep -q gnutls_hmac_init $f; then
+ printf " -DHAVE_GNUTLS"
+ break 3
+ fi
+ done
done
done
- done
+ fi
# Look for gnupg support.
- for d in $dirs; do
- files=$(find $d -type f -name gcrypt.h)
- for f in $files; do
- if grep -q gcry_mac_open $f; then
- printf " -DHAVE_GNUPG"
- break 2
- fi
+ if [ "x$NO_AUTODETECT_SAD_MAC_LIB" = "x" ] || [ "x$SAD_MAC_GNUPG" != "x" ]; then
+ for d in $dirs; do
+ files=$(find $d -type f -name gcrypt.h)
+ for f in $files; do
+ if grep -q gcry_mac_open $f; then
+ printf " -DHAVE_GNUPG"
+ break 2
+ fi
+ done
done
- done
+ fi
# Look for openssl support.
- for d in $dirs; do
- sdirs=$(find $d -type d -name "openssl")
- for s in $sdirs; do
- have_crypto="0"
- files=$(find $s -type f -name crypto.h)
- for f in $files; do
- if grep -q CRYPTO_memcmp $f; then
- have_crypto="1"
- break 1;
+ if [ "x$NO_AUTODETECT_SAD_MAC_LIB" = "x" ] || [ "x$SAD_MAC_OPENSSL" != "x" ]; then
+ for d in $dirs; do
+ sdirs=$(find $d -type d -name "openssl")
+ for s in $sdirs; do
+ have_crypto="0"
+ files=$(find $s -type f -name crypto.h)
+ for f in $files; do
+ if grep -q CRYPTO_memcmp $f; then
+ have_crypto="1"
+ break 1;
+ fi
+ done
+ have_evp="0"
+ files=$(find $s -type f -name evp.h)
+ for f in $files; do
+ if grep -q EVP_MAC_init $f; then
+ have_evp="1"
+ break 1;
+ fi
+ done
+ if [ $have_crypto = "1" ] &&
+ [ $have_evp = "1" ]; then
+ printf " -DHAVE_OPENSSL"
+ break 2
fi
done
- have_evp="0"
- files=$(find $s -type f -name evp.h)
- for f in $files; do
- if grep -q EVP_MAC_init $f; then
- have_evp="1"
- break 1;
- fi
- done
- if [ $have_crypto = "1" ] &&
- [ $have_evp = "1" ]; then
- printf " -DHAVE_OPENSSL"
- break 2
- fi
done
- done
+ fi
}
#
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