readsb: new package

This package is based on dump1090-fa with many modifications. A big
advantage over dump1090-fa is that it can connect to multiple services
like adsbexchange, piaware or fr24feed.

As the idea for this package is mostly to feed other services, the HTML
files to serve via a webserver have not been included. The service(s)
that will be fed by readsb can offer such a webpage instead.

Finally, the init script does not use local variables, as local is
undefined in POSIX.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
This commit is contained in:
Stijn Tintel 2020-05-03 23:21:52 +03:00
parent e1f607af94
commit 02f3892eb2
4 changed files with 313 additions and 0 deletions

73
utils/readsb/Makefile Normal file
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@ -0,0 +1,73 @@
# Copyright (C) 2020 Stijn Tintel <stijn@linux-ipv6.be>
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
include $(TOPDIR)/rules.mk
PKG_NAME:=readsb
PKG_VERSION:=3.8.3
PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=https://codeload.github.com/Mictronics/readsb/tar.gz/v$(PKG_VERSION)?
PKG_HASH:=bf59b8ecd0ff66945b210c55a5b824aa63ff8cbb1704249528d30a4902e716b2
PKG_LICENSE:=GPL-3.0-or-later
PKG_LICENSE_FILES:=COPYING LICENSE
PKG_MAINTAINER:=Stijn Tintel <stijn@linux-ipv6.be>
PKG_BUILD_DEPENDS:=!USE_GLIBC:argp-standalone
PKG_BUILD_PARALLEL:=1
include $(INCLUDE_DIR)/package.mk
define Package/readsb/default
SECTION:=utils
CATEGORY:=Utilities
DEPENDS:=+libncurses
TITLE:=Mode-S/ADSB/TIS decoder for various devices
URL:=https://github.com/Mictronic/readsb
endef
define Package/readsb
$(call Package/readsb/default)
TITLE+= (readsb)
DEPENDS+=+librtlsdr
endef
define Package/viewadsb
$(call Package/readsb/default)
TITLE+= (viewadsb)
endef
MAKE_FLAGS += \
BLADERF=no \
CFLAGS="$(TARGET_CFLAGS)" \
RTLSDR=yes \
UNAME="Linux"
TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
TARGET_LDFLAGS += \
$(if $(CONFIG_LIBC_USE_GLIBC),,-largp) \
-Wl,--gc-sections,--as-needed
define Package/readsb/conffiles
/etc/config/readsb
endef
define Package/readsb/install
$(INSTALL_DIR) $(1)/etc/{config,init.d} $(1)/usr/bin
$(INSTALL_CONF) ./files/readsb.config $(1)/etc/config/readsb
$(INSTALL_BIN) ./files/readsb.init $(1)/etc/init.d/readsb
$(INSTALL_BIN) $(PKG_BUILD_DIR)/readsb $(1)/usr/bin
endef
define Package/viewadsb/install
$(INSTALL_DIR) $(1)/usr/bin
$(INSTALL_BIN) $(PKG_BUILD_DIR)/viewadsb $(1)/usr/bin
endef
$(eval $(call BuildPackage,readsb))
$(eval $(call BuildPackage,viewadsb))

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@ -0,0 +1,46 @@
config readsb main
option enabled '0'
option beast_crc_off '0'
option beast_df045_on '0'
option beast_df1117_on '0'
option beast_fec_off '0'
option beast_mlat_off '0'
option beast_modeac '0'
option beast_serial ''
option dcfilter '0'
option debug ''
option device ''
option device_type ''
option enable_agc '0'
option enable_biastee '0'
option fix '1'
option freq ''
option forward_mlat '0'
option gain ''
option gnss '0'
option json_location_accuracy ''
option lat ''
option lon ''
option max_range ''
option metric '0'
option mlat '0'
option modeac '0'
option net '1'
option net_beast_reduce_interval ''
option net_beast_reduce_out_port ''
option net_bi_port ''
option net_bind_address ''
option net_bo_port ''
option net_buffer ''
list net_connector ''
option net_only '0'
option net_verbatim '0'
option no_crc_check '0'
option no_modeac_auto '0'
option onlyaddr '0'
option ppm ''
option stats '0'
option stats_every ''
option stats_range '0'
option write_json ''
option write_json_every ''

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#!/bin/sh /etc/rc.common
START=90
STOP=10
USE_PROCD=1
append_bool() {
config_get_bool tbool "$1" "$2"
v=$(echo "$2" | sed 's/_/-/g')
[ -z "$tbool" ] && tbool="$3"
[ "$tbool" -eq 1 ] && procd_append_param command "--${v}"
}
append_bool_no() {
config_get_bool tbool "$1" "$2"
v=$(echo "$2" | sed 's/_/-/g')
[ -z "$tbool" ] && tbool="$3"
[ "$tbool" -eq 0 ] && procd_append_param command "--no-${v}"
[ "$tbool" -eq 1 ] && procd_append_param command "--${v}"
}
append_param() {
config_get tparam "$1" "$2"
name=$(echo "$2" | sed 's/_/-/g')
[ -n "$tparam" ] && procd_append_param command "--${name}=${tparam}"
}
start_instance() {
cfg=$1
config_get_bool enabled "$cfg" "enabled" 0
[ "$enabled" -eq 1 ] || return 0
procd_open_instance "$cfg"
procd_set_param command /usr/bin/readsb
procd_append_param command "--quiet"
procd_set_param respawn
procd_set_param stderr "1"
procd_set_param stdout "1"
append_bool "$cfg" beast_crc_off 0
append_bool "$cfg" beast_df045_on 0
append_bool "$cfg" beast_df1117_on 0
append_bool "$cfg" beast_fec_off 0
append_bool "$cfg" beast_mlat_off 0
append_bool "$cfg" beast_modeac 0
append_bool "$cfg" dcfilter 0
append_bool "$cfg" enable_agc 0
append_bool "$cfg" enable_biastee 0
append_bool "$cfg" forward_mlat 0
append_bool "$cfg" gnss 0
append_bool "$cfg" metric 0
append_bool "$cfg" mlat 0
append_bool "$cfg" modeac 0
append_bool "$cfg" net 1
append_bool "$cfg" net_only 0
append_bool "$cfg" net_verbatim 0
append_bool "$cfg" no_crc_check 0
append_bool "$cfg" no_modeac_auto 0
append_bool "$cfg" onlyaddr 0
append_bool "$cfg" stats 0
append_bool "$cfg" stats_range 0
append_bool_no "$cfg" fix 1
for param in \
beast_serial \
debug \
device \
device_type \
freq \
gain \
json_location_accuracy \
lat \
lon \
max_range \
net_beast_reduce_interval \
net_beast_reduce_out_port \
net_bi_port \
net_bind_address \
net_bo_port \
net_buffer \
ppm \
stats_every \
write_json \
write_json_every
do
append_param "$cfg" "$param"
done
config_get net_connector "$cfg" "net_connector"
[ -z "$net_connector" ] || {
for conn in $net_connector; do
procd_append_param command --net-connector="$conn"
done
}
procd_close_instance
}
start_service() {
config_load readsb
config_foreach start_instance readsb
}

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From 82014a5fa9930b0875e57869265acf011772277c Mon Sep 17 00:00:00 2001
From: Stijn Tintel <stijn@linux-ipv6.be>
Date: Sun, 3 May 2020 20:56:58 +0300
Subject: [PATCH] network: avoid segfault in freeaddrinfo
Calling freeaddrinfo(NULL) when using musl libc causes a segfault.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
---
anet.c | 15 ++++++++++++---
net_io.c | 5 ++++-
viewadsb.c | 5 ++++-
3 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/anet.c b/anet.c
index 5c35ff8..7f01958 100644
--- a/anet.c
+++ b/anet.c
@@ -212,7 +212,10 @@ static int anetTcpGenericConnect(char *err, char *addr, char *service, int flags
if (ss) {
memcpy(ss, p->ai_addr, sizeof(*ss));
}
- freeaddrinfo(gai_result);
+ if (gai_result) {
+ freeaddrinfo(gai_result);
+ gai_result = NULL;
+ }
return s;
}
@@ -220,7 +223,10 @@ static int anetTcpGenericConnect(char *err, char *addr, char *service, int flags
anetCloseSocket(s);
}
- freeaddrinfo(gai_result);
+ if (gai_result) {
+ freeaddrinfo(gai_result);
+ gai_result = NULL;
+ }
return ANET_ERR;
}
@@ -368,7 +374,10 @@ int anetTcpServer(char *err, char *service, char *bindaddr, int *fds, int nfds)
fds[i++] = s;
}
- freeaddrinfo(gai_result);
+ if (gai_result) {
+ freeaddrinfo(gai_result);
+ gai_result = NULL;
+ }
return (i > 0 ? i : ANET_ERR);
}
diff --git a/net_io.c b/net_io.c
index 1f4d848..5f59194 100644
--- a/net_io.c
+++ b/net_io.c
@@ -3285,7 +3285,10 @@ void cleanupNetwork(void) {
for (int i = 0; i < Modes.net_connectors_count; i++) {
struct net_connector *con = Modes.net_connectors[i];
free(con->address);
- freeaddrinfo(con->addr_info);
+ if (con->addr_info) {
+ freeaddrinfo(con->addr_info);
+ con->addr_info = NULL;
+ }
if (con->mutex) {
pthread_mutex_unlock(con->mutex);
pthread_mutex_destroy(con->mutex);
diff --git a/viewadsb.c b/viewadsb.c
index 5fc5386..ad7b1bd 100644
--- a/viewadsb.c
+++ b/viewadsb.c
@@ -308,7 +308,10 @@ int main(int argc, char **argv) {
}
// Free local service and client
if (s) free(s);
- freeaddrinfo(con->addr_info);
+ if (con->addr_info) {
+ freeaddrinfo(con->addr_info);
+ con->addr_info = NULL;
+ }
pthread_mutex_unlock(con->mutex);
pthread_mutex_destroy(con->mutex);
free(con->mutex);
--
2.26.2