freebsd-dev/config/user-libfetch.m4
наб 37086897b0
libzfs: add keylocation=https://, backed by fetch(3) or libcurl
Add support for http and https to the keylocation properly to
allow encryption keys to be fetched from the specified URL.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Issue #9543
Closes #9947 
Closes #11956
2021-05-12 21:21:35 -07:00

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dnl #
dnl # Check for a libfetch - either fetch(3) or libcurl.
dnl #
dnl # There are two configuration dimensions:
dnl # * fetch(3) vs libcurl
dnl # * static vs dynamic
dnl #
dnl # fetch(3) is only dynamic.
dnl # We use sover 6, which first appeared in FreeBSD 8.0-RELEASE.
dnl #
dnl # libcurl development packages include curl-config(1) we want:
dnl # * HTTPS support
dnl # * version at least 7.16 (October 2006), for sover 4
dnl # * to decide if it's static or not
dnl #
AC_DEFUN([ZFS_AC_CONFIG_USER_LIBFETCH], [
AC_MSG_CHECKING([for libfetch])
LIBFETCH_LIBS=
LIBFETCH_IS_FETCH=0
LIBFETCH_IS_LIBCURL=0
LIBFETCH_DYNAMIC=0
LIBFETCH_SONAME=
have_libfetch=
saved_libs="$LIBS"
LIBS="$LIBS -lfetch"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <sys/param.h>
#include <stdio.h>
#include <fetch.h>
]], [fetchGetURL("", "");])], [
have_libfetch=1
LIBFETCH_IS_FETCH=1
LIBFETCH_DYNAMIC=1
LIBFETCH_SONAME='"libfetch.so.6"'
LIBFETCH_LIBS="-ldl"
AC_MSG_RESULT([fetch(3)])
], [])
LIBS="$saved_libs"
if test -z "$have_libfetch"; then
if curl-config --protocols 2>/dev/null | grep -q HTTPS &&
test "$(printf "%u" "0x$(curl-config --vernum)")" -ge "$(printf "%u" "0x071000")"; then
have_libfetch=1
LIBFETCH_IS_LIBCURL=1
if test "$(curl-config --built-shared)" = "yes"; then
LIBFETCH_DYNAMIC=1
LIBFETCH_SONAME='"libcurl.so.4"'
LIBFETCH_LIBS="-ldl"
AC_MSG_RESULT([libcurl])
else
LIBFETCH_LIBS="$(curl-config --libs)"
AC_MSG_RESULT([libcurl (static)])
fi
CCFLAGS="$CCFLAGS $(curl-config --cflags)"
fi
fi
if test -z "$have_libfetch"; then
AC_MSG_RESULT([none])
fi
AC_SUBST([LIBFETCH_LIBS])
AC_SUBST([LIBFETCH_DYNAMIC])
AC_SUBST([LIBFETCH_SONAME])
AC_DEFINE_UNQUOTED([LIBFETCH_IS_FETCH], [$LIBFETCH_IS_FETCH], [libfetch is fetch(3)])
AC_DEFINE_UNQUOTED([LIBFETCH_IS_LIBCURL], [$LIBFETCH_IS_LIBCURL], [libfetch is libcurl])
AC_DEFINE_UNQUOTED([LIBFETCH_DYNAMIC], [$LIBFETCH_DYNAMIC], [whether the chosen libfetch is to be loaded at run-time])
AC_DEFINE_UNQUOTED([LIBFETCH_SONAME], [$LIBFETCH_SONAME], [soname of chosen libfetch])
])