Snmp v3

[zap4zap]

Hi,

Does anyone have experience with building and running SNMP v3 on the XPort-Pro Linux?

If the answer is "YES", was it strayed forward or did it need some adaptation?

(SNMPv3 with Encryption and Authentication)

Thanks,

Ton.

[tfujii]

Answer is Yes.
Linux SDK contains net-snmp which can use SNMPv3.

There are some steps for using.

1. Modify linux/user/net-snmp/makefile

+++ linux/user/net-snmp/makefile
@@ -1,8 +1,21 @@
 #
 # Makefile for net-snmp
 #
+TOP_DIR := $(shell cd ../../; pwd)
+include $(TOP_DIR)/config/config.make
+
+-include $(LINUX_CONFIG)
+-include $(CONFIG_CONFIG)
+
+#CONFIG_USER_NETSNMP_BUILDSTATIC=1
+CONFIGURE_OPTS =--host=$(GCC_HOST_TYPE) \
+               --target=$(GCC_HOST_TYPE)
+
+LDFLAGS += -lpthread
+FLTFLAGS = -s 49152
 
 CFLAGS = -D__deprecated=
+CFLAGS += -Dfork=vfork
 
 NET_SNMP_CFG = --prefix= --disable-debugging
 
@@ -119,6 +132,9 @@
 endif
 endif
 ifdef CONFIG_USER_NETSNMP_SNMPD
+ifneq ($(FLTFLAGS),)
+       $(CROSS)flthdr $(FLTFLAGS) build/agent/${NET_SNMP_EXE_DIR}snmpd
+endif
        $(ROMFSINST) build/agent/${NET_SNMP_EXE_DIR}snmpd /bin/snmpd
 endif
 ifdef CONFIG_USER_NETSNMP_APPS_BULKGET

2. Enable net-snmp by uClinux Distribution Configuration.

Network Applications
[*] net-snmp
[*]   Build mini agent
[ ]   Build Applications
[*]   Build static
[ ]   Install scripts
...

3. Build Image, and Boot target with built image

4. Refer to linux/usr/net-snmp/build/EXAMPLE.conf, create snmp.conf with target.
Create User for authentication. for example:

createUser authuser MD5 "password" DES "password"
rouser authuser

5. Start snmp agent (/bin/snmpd) with snmp.conf

6. Access an agent by SNMPv3
for example:

snmpwalk -c public -v3 -a MD5 -l authNoPriv -u authuser -x DES -A password <host> .1.3.6.1.2.1.1.1.0

.1.3.6.1.2.1.1.1.0 = STRING: "uClinux uClinux 2.6.30.4-uc0 #3 Fri Jun 4 19:32:27 JST 2010 m68knommu"

Regards,

[meloun]

net-snmp

Hi Tfujii,
when check net-snmp I get some errors during compilation.

 Network Applications
[*] net-snmp
[*]   Build mini agent
[ ]   Build Applications[*]   Build static
[ ]   Install scripts
...

[email protected]:~/programme/uc_source/linux/user/net-snmp$ make
make -j1 xEXT=so xDIR=.libs/ -C build
make[1]: Entering directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build'
WARNING: not running autoconf
WARNING: not running autoheader
making all in /home/meloun/programme/uc_source/linux/user/net-snmp/build/snmplib
make[2]: Entering directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/snmplib'
make[2]: Leaving directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/snmplib'
making all in /home/meloun/programme/uc_source/linux/user/net-snmp/build/agent
make[2]: Entering directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent'
making all in /home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/helpers
make[3]: Entering directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/helpers'
make[3]: Leaving directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/helpers'
making all in /home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/mibgroup
make[3]: Entering directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/mibgroup'
make[3]: Leaving directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/mibgroup'
/bin/sh ../libtool  --mode=link ucfront-gcc m68k-uclinux-gcc -mcpu=5208 -DCONFIG_COLDFIRE -D__deprecated= -D__deprecated= -Ulinux -Dlinux=linux  -o snmpd snmpd.lo  -L../snmplib/.libs -L../snmplib -L./.libs -L./helpers/.libs -L./helpers -Wl,-elf2flt -Wl,-move-rodata -msep-data -Wl,-elf2flt -Wl,-move-rodata -msep-data  libnetsnmpagent.la helpers/libnetsnmphelpers.la libnetsnmpmibs.la ../snmplib/libnetsnmp.la  -L/home/meloun/programme/uc_source/linux/lib/zlib -L/home/meloun/programme/uc_source/linux/lib/zlib  
../libtool: line 46: -mcpu=5208: command not found
libtool: link: ucfront-gcc m68k-uclinux-gcc -mcpu=5208 -DCONFIG_COLDFIRE -D__deprecated= -D__deprecated= -Ulinux -Dlinux=linux -o snmpd snmpd.o -Wl,-elf2flt -Wl,-move-rodata -msep-data -Wl,-elf2flt -Wl,-move-rodata -msep-data  -L/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/.libs -L/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/helpers/.libs -L/home/meloun/programme/uc_source/linux/user/net-snmp/build/snmplib/.libs -L/home/meloun/programme/uc_source/linux/user/net-snmp/build/snmplib -L/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/helpers ./.libs/libnetsnmpagent.a helpers/.libs/libnetsnmphelpers.a ./.libs/libnetsnmpmibs.a /home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/helpers/.libs/libnetsnmphelpers.a /home/meloun/programme/uc_source/linux/user/net-snmp/build/agent/.libs/libnetsnmpagent.a /home/meloun/programme/uc_source/linux/user/net-snmp/build/snmplib/.libs/libnetsnmp.a ../snmplib/.libs/libnetsnmp.a -L/home/meloun/programme/uc_source/linux/lib/zlib
warning: .rodata section contains relocations./.libs/libnetsnmpmibs.a(util_funcs.o): In function `net_snmp_search_update_prefix_info':
util_funcs.c:(.text+0x10d0): undefined reference to `pthread_mutex_lock'
util_funcs.c:(.text+0x1134): undefined reference to `pthread_mutex_unlock'
util_funcs.c:(.text+0x1166): undefined reference to `pthread_mutex_unlock'
util_funcs.c:(.text+0x1178): undefined reference to `pthread_mutex_lock'
util_funcs.c:(.text+0x11dc): undefined reference to `pthread_mutex_unlock'
util_funcs.c:(.text+0x11fc): undefined reference to `pthread_mutex_unlock'
./.libs/libnetsnmpmibs.a(util_funcs.o): In function `net_snmp_delete_prefix_info':
util_funcs.c:(.text+0x122a): undefined reference to `pthread_mutex_lock'
util_funcs.c:(.text+0x1296): undefined reference to `pthread_mutex_unlock'
util_funcs.c:(.text+0x12bc): undefined reference to `pthread_mutex_unlock'
collect2: ld returned 1 exit status
make[2]: *** [snmpd] Error 1
make[2]: Leaving directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build/agent'
make[1]: *** [subdirs] Error 1
make[1]: Leaving directory `/home/meloun/programme/uc_source/linux/user/net-snmp/build'
make: *** [all] Error 2

What did I wrong?