package/mini-snmpd: new package

Mini SNMPd is a minimal implementation targeted at small or embedded
UNIX systems with limited resources.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
[Thomas: add hash file.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

diff --git a/DEVELOPERS b/DEVELOPERS
index 3f51e444215f8e883ba5b606541a3fadcc3604ea..7d43b3ccb248b05e806a4c8c79a0cee5450026c1 100644 (file)
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -98,6 +98,9 @@ F:    package/openpgm/
 N:     Alexander Mukhin <alexander.i.mukhin@gmail.com>
 F:     package/hostapd/
 
+N:     Alexander Sverdlin <alexander.sverdlin@gmail.com>
+F:     package/mini-snmpd/
+
 N:     Alexander Varnin <fenixk19@mail.ru>
 F:     package/liblog4c-localtime/
 

diff --git a/package/Config.in b/package/Config.in
index 2a1d025d584728c67bb38d4ccd7842b07d873a69..d02f9eadbbf18c5101b3786303caf3a7e6c6978d 100644 (file)
--- a/package/Config.in
+++ b/package/Config.in
@@ -1895,6 +1895,7 @@ menu "Networking applications"
        source "package/macchanger/Config.in"
        source "package/memcached/Config.in"
        source "package/mii-diag/Config.in"
+       source "package/mini-snmpd/Config.in"
        source "package/minidlna/Config.in"
        source "package/minissdpd/Config.in"
        source "package/mjpg-streamer/Config.in"

diff --git a/package/mini-snmpd/0001-Prepend-zero-byte-before-unsigned-integers.patch b/package/mini-snmpd/0001-Prepend-zero-byte-before-unsigned-integers.patch
new file mode 100644 (file)
index 0000000..36ddee4
--- /dev/null
+++ b/package/mini-snmpd/0001-Prepend-zero-byte-before-unsigned-integers.patch
@@ -0,0 +1,31 @@
+From 949ae648bf7c654b8fae607a0988bfa672607156 Mon Sep 17 00:00:00 2001
+From: Patrick Rauscher <prauscher@prauscher.de>
+Date: Fri, 18 Aug 2017 17:31:23 +0200
+Subject: [PATCH] Prepend zero-byte before unsigned integers
+
+fixes #8
+
+Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
+---
+ mib.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/mib.c b/mib.c
+index 7d2e513..a9ffbe2 100644
+--- a/mib.c
++++ b/mib.c
+@@ -207,6 +207,11 @@ static int encode_unsigned(data_t *data, int type, unsigned int ticks_value)
+       else
+               length = 1;
+ 
++      /* check if the integer could be interpreted negative during a signed decode and prepend a zero-byte if necessary */
++      if ((ticks_value >> (8 * (length - 1))) & 0x80) {
++              length++;
++      }
++
+       *buffer++ = type;
+       *buffer++ = length;
+       while (length--)
+-- 
+2.13.2
+

diff --git a/package/mini-snmpd/0002-mib.c-allow-unsigned-integers-to-have-an-extra-byte.patch b/package/mini-snmpd/0002-mib.c-allow-unsigned-integers-to-have-an-extra-byte.patch
new file mode 100644 (file)
index 0000000..045d296
--- /dev/null
+++ b/package/mini-snmpd/0002-mib.c-allow-unsigned-integers-to-have-an-extra-byte.patch
@@ -0,0 +1,28 @@
+From 556c8a406c9e08dd9444222e072f7eb9c82a81e8 Mon Sep 17 00:00:00 2001
+From: Patrick Rauscher <prauscher@prauscher.de>
+Date: Fri, 18 Aug 2017 17:44:32 +0200
+Subject: [PATCH] mib.c: allow unsigned integers to have an extra byte
+
+The extra byte can be needed when encoding huge unsigned numbers (i.e. 0x80000000 or higher). In this case, during encoding we need an extra byte to make sure clients decoding as signed int do not get negative numbers. For further details, see commit 949ae648
+
+Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
+---
+ mib.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mib.c b/mib.c
+index a9ffbe2..83cc20d 100644
+--- a/mib.c
++++ b/mib.c
+@@ -372,7 +372,7 @@ static int data_alloc(data_t *data, int type)
+               case BER_TYPE_COUNTER:
+               case BER_TYPE_GAUGE:
+               case BER_TYPE_TIME_TICKS:
+-                      data->max_length = sizeof(unsigned int) + 2;
++                      data->max_length = sizeof(unsigned int) + 3;
+                       data->encoded_length = 0;
+                       data->buffer = allocate(data->max_length);
+                       break;
+-- 
+2.13.2
+

diff --git a/package/mini-snmpd/Config.in b/package/mini-snmpd/Config.in
new file mode 100644 (file)
index 0000000..1f61cdd
--- /dev/null
+++ b/package/mini-snmpd/Config.in
@@ -0,0 +1,7 @@
+config BR2_PACKAGE_MINI_SNMPD
+       bool "mini-snmpd"
+       help
+         Mini SNMPd is a minimal implementation targeted at small or
+         embedded UNIX systems with limited resources
+
+         http://troglobit.com/mini-snmpd.html

diff --git a/package/mini-snmpd/mini-snmpd.hash b/package/mini-snmpd/mini-snmpd.hash
new file mode 100644 (file)
index 0000000..19118b7
--- /dev/null
+++ b/package/mini-snmpd/mini-snmpd.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 59f84e94ef7c9ff36d243c7974a100903a4a9a0bb529b67cf6f0d3352138a86b mini-snmpd-v1.4.tar.gz
+sha256 8a43b895972a24567297f44f35dab0f5f9ed3b7db6dac0bf6094075b27ab9d56 COPYING

diff --git a/package/mini-snmpd/mini-snmpd.mk b/package/mini-snmpd/mini-snmpd.mk
new file mode 100644 (file)
index 0000000..ebcbcce
--- /dev/null
+++ b/package/mini-snmpd/mini-snmpd.mk
@@ -0,0 +1,21 @@
+################################################################################
+#
+# mini-snmpd
+#
+################################################################################
+
+MINI_SNMPD_VERSION = v1.4
+MINI_SNMPD_SITE = $(call github,troglobit,mini-snmpd,$(MINI_SNMPD_VERSION))
+MINI_SNMPD_LICENSE = GPL-2.0
+MINI_SNMPD_LICENSE_FILES = COPYING
+MINI_SNMPD_AUTORECONF = YES
+
+define MINI_SNMPD_INSTALL_INIT_SYSTEMD
+       $(INSTALL) -D -m 644 package/mini-snmpd/mini-snmpd.service \
+               $(TARGET_DIR)/usr/lib/systemd/system/mini-snmpd.service
+       mkdir -p $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants
+       ln -sf ../../../../usr/lib/systemd/system/mini-snmpd.service \
+               $(TARGET_DIR)/etc/systemd/system/multi-user.target.wants/mini-snmpd.service
+endef
+
+$(eval $(autotools-package))

diff --git a/package/mini-snmpd/mini-snmpd.service b/package/mini-snmpd/mini-snmpd.service
new file mode 100644 (file)
index 0000000..8a15585
--- /dev/null
+++ b/package/mini-snmpd/mini-snmpd.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Mini SNMP Daemon
+StartLimitIntervalSec=0
+
+[Service]
+Environment='COMMUNITY=public'
+ExecStart=/sbin/mini_snmpd -a -n -c ${COMMUNITY} $EXTRA_PARAMS
+Restart=always
+RestartSec=1
+
+[Install]
+WantedBy=multi-user.target