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Asterisk: the flagship of telephony on Linux. These are the lines of
code whose continuous mission is to power small and large enterprises
telephony systems, to boldly provide IP PBX where no one has done so
before.

But it is a hell to get compiled... :-(

For starters, it needs a host tool, menuselect, to prepare its build
configuration. Unfortunately, the way it handles menuselect does not
apply very well for cross-compilation: the main ./configure calls out to
menuselect's own ./configure, and of course that runs with the same
environement, which is wrong for cross-compilation (because of variables
like CC, CFLAGS and the likes).

Furthermore, the paths to menuselect are imbricated about everywhere in
the main Makefile, so making it find menuselect in PATH is a lost cause.

Instead, we just patch-out the handling of menuselect, build it as the
host variant and copy it in place.

Now, asterisk wants to install a default set of sound files (for
answering machine stuff, I guess). They come come pre-bundled in the
official archive [0], but the buildsystem will want to download (at
install time) the sha1 files for each sound archive, to validate that
said archive is correct. However, the download is done via plain http,
so it still risks an MITM attack. And for Buildroot, it is not always
possible to download at install time, so we patch-out the sha1 check.

[0] http://downloads.asterisk.org/pub/telephony/asterisk/releases/

The official archive contains the sound archives plus a full set of
documentation. This makes it very big. Unfortunately, the hosting site
is rather slow, topping at about ~204kbps. So we get the archive from
the official mirror on Github. But that archive is missing the sound
archives, so we download them separately.

Some tests, like the crypt() one, are broken and could not have ever
possibly worked at all. Worse, the FFmpeg test is looking for headers
that FFmpeg removed more than 10 years ago and are virtually no longer
available in any distro. So, FFmpeg support is definitely not tested
by upstream and can't possibly work at all. Finally, trying to run
test-code does not work in cross-compilation.

As a final stroke of genius, asterisk checks for the re-entrant variant
of res_ninit(), and concludes that all such functions are available,
including res_nsearch(). Uclibc-ng has the former but not the latter, so
the build fails. Since there is no cache variable for that check, we
can't pre-feed that result to configure, and fixing it is a bigger
endeavour.  So we make asterisk depend on glibc for now, until someone
is brave enough to fix it.

Almost all features are disabled for now. Support for additional
features will be added in subsequent patches now that we have a working
base.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Romain Naour <romain.naour@openwide.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Arnout:
 - make libilbc a mandatory dependency instead of using the bundled one;
 - add license, license files, and license file hashes;
 - minor spelling corrections;
 - remove redundant trailing backslash reported by check-package;
 - rewrap help text to 72 columns instead of 68]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

fixup
This commit is contained in:
Yann E. MORIN 2017-09-09 23:39:07 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent 19d8081865
commit 05e306d8d3
8 changed files with 415 additions and 0 deletions
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1
package/Config.in
View file

@ -1572,6 +1572,7 @@ menu "Networking applications"
source "package/argus/Config.in"
source "package/arp-scan/Config.in"
source "package/arptables/Config.in"
source "package/asterisk/Config.in"
source "package/atftp/Config.in"
source "package/autossh/Config.in"
source "package/avahi/Config.in"

58
package/asterisk/0001-configure-do-not-configure-in-menuselect.patch Normal file
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@ -0,0 +1,58 @@
From cc5daff874779475742bdb89a9328bb4fc4c4e09 Mon Sep 17 00:00:00 2001
From: "Yann E. MORIN" <yann.morin.1998@free.fr>
Date: Tue, 27 Dec 2016 11:20:19 +0100
Subject: [PATCH] configure: do not configure in menuselect
When cross-compiling, the arguments and environment for ./configure are
different for the host and the target, and we want menuselect to be
compiled for the build machine, not the target.
Although we do not pass any option to ./configure for menuselect, the
environment may still reference variables for the target, like CC or
CFLAGS and so on... We can not build menuselect with those variables.
Instead, just assume that menuselect will be pre-compiled.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
configure | 16 ----------------
configure.ac | 16 ----------------
2 files changed, 32 deletions(-)
diff --git a/configure.ac b/configure.ac
index 66c8971..121dd93 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2662,12 +2662,6 @@ fi
AC_SUBST([PBX_SYSLOG])
-if test -f makeopts; then
- ${ac_cv_path_EGREP} 'CURSES|GTK2|OSARCH|NEWT' makeopts > makeopts.acbak
-else
- touch makeopts.acbak
-fi
-
AC_CONFIG_FILES([build_tools/menuselect-deps makeopts])
AST_CHECK_MANDATORY
@@ -2683,16 +2677,6 @@ fi
AC_OUTPUT
-${ac_cv_path_EGREP} 'CURSES|GTK2|OSARCH|NEWT' makeopts > makeopts.acbak2
-if test "x${ac_cv_path_CMP}" = "x:"; then
- ( cd `pwd`/menuselect && ./configure )
-else if ${ac_cv_path_CMP} -s makeopts.acbak makeopts.acbak2; then : ; else
- ( cd `pwd`/menuselect && ./configure )
-fi ; fi
-
-rm makeopts.acbak makeopts.acbak2
-
-
if test "x${silent}" != "xyes" ; then
echo
echo " .\$\$\$\$\$\$\$\$\$\$\$\$\$\$\$=.. "
--
2.7.4

52
package/asterisk/0002-sounds-do-not-download-and-check-sha1s.patch Normal file
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@ -0,0 +1,52 @@
From 3e8a9e9a1c7eae515eb628778c3c8a04338b3bb3 Mon Sep 17 00:00:00 2001
From: "Yann E. MORIN" <yann.morin.1998@free.fr>
Date: Tue, 27 Dec 2016 11:21:09 +0100
Subject: [PATCH] sounds: do not download and check sha1s
To validate the sound archives, the corresponding sha1s are also
downloaded from the same location, and that download is done at install
time.
However, that poses at least two problems:
- in Buildroot, we already have validated the downloads with the sha1s
anyway, and trying to download anything at install time is not
always possible (e.g. for off-line builds);
- since the download scheme is not secured (plain http), a
man-in-the-middle for the sounds will also be able to MITM the
download of the sha1s, so there is absolutely no additional safety
in doing so.
So we just do without the sha1 download and checks.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
sounds/Makefile | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/sounds/Makefile b/sounds/Makefile
index 84d0f45..7a80d56 100644
--- a/sounds/Makefile
+++ b/sounds/Makefile
@@ -100,17 +100,7 @@ ifneq ($(SOUNDS_CACHE_DIR),)
if test ! -f "$$(SOUNDS_CACHE_DIR)/$$@"; then \
(cd "$$(SOUNDS_CACHE_DIR)"; $$(DOWNLOAD) $$(SOUNDS_URL)/$$@); \
fi; \
- if test ! -f "$$(SOUNDS_CACHE_DIR)/$$@.sha1"; then \
- (cd "$$(SOUNDS_CACHE_DIR)"; $$(DOWNLOAD) $$(SOUNDS_URL)/$$@.sha1); \
- fi; \
$$(LN) -sf "$$(SOUNDS_CACHE_DIR)/$$@" .; \
- $$(LN) -sf "$$(SOUNDS_CACHE_DIR)/$$@.sha1" .; \
- $$(SHA1SUM) -c --status $$@.sha1 || \
- ( \
- rm -f "$$(SOUNDS_CACHE_DIR)/$$@" "$$(SOUNDS_CACHE_DIR)/$$@.sha1" $$@ $$@.sha1; \
- echo "Bad checksum: $$@" 1>&2; \
- exit 1; \
- ) || exit 1; \
fi
else
$(CMD_PREFIX) \
--
2.7.4

43
package/asterisk/0003-configure-fix-detection-of-libcrypt.patch Normal file
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@ -0,0 +1,43 @@
From 8996503f6c55e55f326ab11c18278954ad7abaf3 Mon Sep 17 00:00:00 2001
From: "Yann E. MORIN" <yann.morin.1998@free.fr>
Date: Tue, 27 Dec 2016 11:21:57 +0100
Subject: [PATCH] configure: fix detection of libcrypt
The crypt() function is searched in two locations: -lcrypt and the
standard C library.
The result of the former is stored in the LIBCRYPT 'scheme' while that
of the latter is stored in the 'SYSCRYPT' scheme.
However, the check for mandatory modules looks at the CRYPT 'scheme',
and thus concludes that crypt is missing when it was successfully found.
Fix that by also storing the result of either check in the 'CRYPT'
scheme.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
configure | 2 ++
configure.ac | 2 ++
2 files changed, 4 insertions(+)
diff --git a/configure.ac b/configure.ac
index 121dd93..d459ff5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2406,10 +2406,12 @@ AC_CHECK_FUNC([crypt], [SYSCRYPT=true], [SYSCRYPT=""])
if test "x$LIBCRYPT_LIB" != "x" ; then
CRYPT_LIB="$LIBCRYPT_LIB"
CRYPT_INCLUDE="$LIBCRYPT_INCLUDE"
+ PBX_CRYPT=1
AC_DEFINE([HAVE_CRYPT], [1], [Define to 1 if you have the 'crypt' function.])
elif test "x$SYSCRYPT" != "x" ; then
CRYPT_LIB=""
CRYPT_INCLUDE=""
+ PBX_CRYPT=1
AC_DEFINE([HAVE_CRYPT], [1], [Define to 1 if you have the 'crypt' function.])
fi
--
2.7.4

37
package/asterisk/0004-configure-in-cross-complation-assimne-eventfd-are-av.patch Normal file
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@ -0,0 +1,37 @@
From e7de812c979d219765fbf1292f0e150bfa087716 Mon Sep 17 00:00:00 2001
From: "Yann E. MORIN" <yann.morin.1998@free.fr>
Date: Sun, 18 Jun 2017 21:54:16 +0200
Subject: [PATCH] configure: in cross-complation, assume eventfd are available
eventfd have been in the kernel since 2.6.22, and in glibc since 2.8,
repectively released in July 2007 and April 2008, almost a decade ago
now.
Assume that no one building from now on for cross-compilation will be
unlucky enough to get versions older than that...
As such, in cross-compilation, assume eventfd are available.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
configure.ac | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 1c20517864..474d17ae55 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1107,7 +1107,9 @@ AC_RUN_IFELSE(
[return eventfd(0, EFD_NONBLOCK | EFD_SEMAPHORE) == -1;])],
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_EVENTFD], 1, [Define to 1 if your system supports eventfd and the EFD_NONBLOCK and EFD_SEMAPHORE flags.]),
- AC_MSG_RESULT(no)
+ AC_MSG_RESULT(no),
+ AC_MSG_RESULT([cross-compile; assume yes])
+ AC_DEFINE([HAVE_EVENTFD], 1, [Define to 1 if your system supports eventfd and the EFD_NONBLOCK and EFD_SEMAPHORE flags.])
)
AST_GCC_ATTRIBUTE(pure)
--
2.11.0

26
package/asterisk/Config.in Normal file
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@ -0,0 +1,26 @@
config BR2_PACKAGE_ASTERISK
bool "asterisk"
# Uses glibc resolver function res_nsearch()
depends on BR2_TOOLCHAIN_USES_GLIBC
depends on BR2_INSTALL_LIBSTDCPP
select BR2_PACKAGE_JANSSON
select BR2_PACKAGE_LIBCURL
select BR2_PACKAGE_LIBILBC
select BR2_PACKAGE_LIBXML2
select BR2_PACKAGE_NCURSES
select BR2_PACKAGE_SQLITE
select BR2_PACKAGE_UTIL_LINUX
select BR2_PACKAGE_UTIL_LINUX_LIBUUID
help
Asterisk is an open source framework for building
communications applications. Asterisk turns an ordinary
computer into a communications server. Asterisk powers IP PBX
systems, VoIP gateways, conference servers and other custom
solutions. It is used by small businesses, large businesses,
call centers, carriers and government agencies, worldwide.
Asterisk is free and open source.
http://www.asterisk.org/
comment "asterisk needs a glibc toolchain w/ C++"
depends on !BR2_TOOLCHAIN_USES_GLIBC || !BR2_INSTALL_LIBSTDCPP

15
package/asterisk/asterisk.hash Normal file
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@ -0,0 +1,15 @@
# Locally computed
sha256 c122fbe88e089737fa2c80356762ceed38498aa26da1dfdd4da5506f9b135696 asterisk-14.5.0.tar.gz
# sha1 from: http://downloads.asterisk.org/pub/telephony/sounds/releases
# sha256 locally computed
sha1 65ee068462c6645ed14a28d6b34eb0e9aa7a6c8d asterisk-core-sounds-en-gsm-1.5.tar.gz
sha256 8d1118c6e0a0c614fafe297e3789f924ef5b04285cf6a8cffb8501dfcf5bbf07 asterisk-core-sounds-en-gsm-1.5.tar.gz
sha1 f40fd6ea03dfe8d72ada2540b2288bfdc006381d asterisk-moh-opsound-wav-2.03.tar.gz
sha256 449fb810d16502c3052fedf02f7e77b36206ac5a145f3dacf4177843a2fcb538 asterisk-moh-opsound-wav-2.03.tar.gz
# License files, locally computed
sha256 82af40ed7f49c08685360811993d9396320842f021df828801d733e8fdc0312f COPYING
sha256 ac5571f00e558e3b7c9b3f13f421b874cc12cf4250c4f70094c71544cf486312 main/sha1.c
sha256 0fcdb946955d20c2819a51f3fe613d8f22da2ea793bd50acb30ce156499acc88 codecs/speex/speex_resampler.h
sha256 e6e7b7204d34a3dcdf17389a9c8cf64721ec0d15a797fd51c8c1ed8517cc3038 utils/db1-ast/include/db.h

183
package/asterisk/asterisk.mk Normal file
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@ -0,0 +1,183 @@
################################################################################
#
# asterisk
#
################################################################################
ASTERISK_VERSION = 14.5.0
# Use the github mirror: it's an official mirror maintained by Digium, and
# provides tarballs, which the main Asterisk git tree (behind Gerrit) does not.
ASTERISK_SITE = $(call github,asterisk,asterisk,$(ASTERISK_VERSION))
ASTERISK_SOUNDS_BASE_URL = http://downloads.asterisk.org/pub/telephony/sounds/releases
ASTERISK_EXTRA_DOWNLOADS = \
$(ASTERISK_SOUNDS_BASE_URL)/asterisk-core-sounds-en-gsm-1.5.tar.gz \
$(ASTERISK_SOUNDS_BASE_URL)/asterisk-moh-opsound-wav-2.03.tar.gz
ASTERISK_LICENSE = GPL-2.0, BSD-3c (SHA1, resample), BSD-4c (db1-ast)
ASTERISK_LICENSE_FILES = \
COPYING \
main/sha1.c \
codecs/speex/speex_resampler.h \
utils/db1-ast/include/db.h
# For patches 0001, 0003 and 0004
ASTERISK_AUTORECONF = YES
ASTERISK_AUTORECONF_OPTS = -Iautoconf -Ithird-party -Ithird-party/pjproject
ASTERISK_DEPENDENCIES = \
host-asterisk \
jansson \
libcurl \
libxml2 \
ncurses \
sqlite \
util-linux
# Asterisk wants to run its menuselect tool (a highly tweaked derivative of
# kconfig), but builds it using the target tools. So we build it in the host
# variant (see below), and copy the full build tree of menuselect.
define ASTERISK_COPY_MENUSELECT
rm -rf $(@D)/menuselect
cp -a $(HOST_ASTERISK_DIR)/menuselect $(@D)/menuselect
endef
ASTERISK_PRE_CONFIGURE_HOOKS += ASTERISK_COPY_MENUSELECT
ASTERISK_CONF_OPTS = \
--disable-xmldoc \
--disable-internal-poll \
--disable-asteriskssl \
--disable-rpath \
--without-asound \
--without-bfd \
--without-execinfo \
--without-bluetooth \
--without-cap \
--without-cpg \
--without-curses \
--without-dahdi \
--without-gsm \
--without-gtk2 \
--without-gmime \
--without-h323 \
--without-hoard \
--without-ical \
--without-iconv \
--without-iksemel \
--without-imap \
--without-inotify \
--without-iodbc \
--without-isdnnet \
--without-jack \
--without-uriparser \
--without-kqueue \
--without-ldap \
--without-libedit \
--without-libxslt \
--without-ltdl \
--without-lua \
--without-misdn \
--without-mysqlclient \
--without-nbs \
--without-neon \
--without-neon29 \
--without-netsnmp \
--without-newt \
--without-ogg \
--without-openr2 \
--without-opus \
--without-osptk \
--without-oss \
--without-postgres \
--without-pjproject \
--without-popt \
--without-portaudio \
--without-pri \
--without-pwlib \
--without-radius \
--without-resample \
--without-sdl \
--without-SDL_image \
--without-spandsp \
--without-ss7 \
--without-speex \
--without-speexdsp \
--without-sqlite \
--without-srtp \
--without-ssl \
--without-suppserv \
--without-tds \
--without-termcap \
--without-timerfd \
--without-tinfo \
--without-tonezone \
--without-unbound \
--without-unixodbc \
--without-vorbis \
--without-vpb \
--without-x11 \
--without-z \
--with-crypt \
--with-jansson \
--with-libcurl \
--with-ilbc \
--with-libxml2 \
--with-ncurses="$(STAGING_DIR)/usr" \
--with-sqlite3="$(STAGING_DIR)/usr" \
--with-sounds-cache=$(BR2_DL_DIR)
# avcodec are from ffmpeg. There is virtually zero chance this could
# even work; asterisk is looking for ffmpeg/avcodec.h which has not
# been installed in this location since early 2007 (~10 years ago at
# the time of this writing).
ASTERISK_CONF_OPTS += --without-avcodec
ASTERISK_CONF_ENV = \
ac_cv_path_CONFIG_LIBXML2=$(STAGING_DIR)/usr/bin/xml2-config
ASTERISK_DIRS = \
ASTVARLIBDIR="/usr/lib/asterisk" \
ASTDATADIR="/usr/lib/asterisk" \
ASTKEYDIR="/usr/lib/asterisk" \
ASTDBDIR="/usr/lib/asterisk"
ASTERISK_MAKE_OPTS = $(ASTERISK_DIRS)
# We want to install sample configuration files, too.
ASTERISK_INSTALL_TARGET_OPTS = \
$(ASTERISK_DIRS) \
DESTDIR=$(TARGET_DIR) \
LDCONFIG=true \
install samples
$(eval $(autotools-package))
#-------------------------------------------------------------------------------
# This part deals with building the menuselect tool as a host package
HOST_ASTERISK_DEPENDENCIES = host-pkgconf host-libxml2 host-ncurses
HOST_ASTERISK_SUBDIR = menuselect
HOST_ASTERISK_LICENSE = GPL-2.0
HOST_ASTERISK_LICENSE_FILES = COPYING
# No need to autoreconf for the host variant,
# so do not inherit the target setup.
HOST_ASTERISK_AUTORECONF = NO
HOST_ASTERISK_CONF_ENV = CONFIG_LIBXML2=$(HOST_DIR)/usr/bin/xml2-config
HOST_ASTERISK_CONF_OPTS = \
--without-newt \
--without-curses \
--with-ncurses=$(HOST_DIR)/usr
# Even though menuselect is an autotools package, it is *not* installed,
# as asterisk does expect it to be in a sub-directory of its source tree,
# which do by copying the full menuselect build tree as a pre-configure
# hook in the target variant.
define HOST_ASTERISK_INSTALL_CMDS
@:
endef
$(eval $(host-autotools-package))