comicchang / radiusplugin

radiusplugin repo from http://www.nongnu.org/radiusplugin/, with minor bug fixes
GNU General Public License v2.0
4 stars 2 forks source link

Libgcrypt warning: missing initialization - please fix the application #1

Closed alexxtasi closed 10 years ago

alexxtasi commented 10 years ago

Hi I am using OpenVPN-2.3.2 on pfSense-2.1.4. Since it is based on FreeBSD-8.3 I used this to compile radiusplugin so I can use this on pfsense... I found it in ports (/usr/ports/security/openvpn-auth-radius/) and compiled it with success (I think) The steps I took are:

  1. cd /usr/ports/distfiles/ wget http://distcache.freebsd.org/ports-distfiles/pkcs11-helper-1.09.tar.bz2 to avoid error "File unavailable (e.g., file not found, no access)"
  2. cd /usr/ports/security/openvpn-auth-radius/ make make install selecting both PW_SAVE and PKCS11

the process seem to end successfully, though when I copy radiusplugin.so and radiusplugin.cnf on pfsense and set openvpn.conf correctly (I know this is not the appropriate method but had nothing else to do. Command ldd, outputs the same dependencies in pfsense as in freebsd )

The log message appears: Libgcrypt warning: missing initialization - please fix the application and on the radius server appears account info but not traffic info

Is there any experience in this ... or any suggestions ?

regards

comicchang commented 10 years ago

Hi,

did you tried this

5. Set some configuration in the config file of the OpenVPN server:
    - status /var/log/openvpn/status.log 1  # The status, where the plugin reads the accounting information from.

I think you should just ignore the warning..it seems have nothing to do with the missing accounting info.

alexxtasi commented 10 years ago

thanks for the quick reply sorry I didn't gave attention to this step...

so I tried: status /var/etc/openvpn/server1.status.log 1 in openvpn's advance settings (I am in pfsense)

I could see this file updating traffic info successfully, but there was nothing on radius server...

any other guess about this issue? here is my radiusplugin.cnf file:

NAS-Identifier=openvpn
Service-Type=5
Framed-Protocol=1
NAS-Port-Type=5
NAS-IP-Address=pfsenseIP
OpenVPNConfig=/var/etc/openvpn/server1.conf
overwriteccfiles=true
# useauthcontrolfile=false
# vsascript=/root/workspace/radiusplugin_v2.0.5_beta/vsascript.pl
# vsanamedpipe=/tmp/vsapipe
server
{
        # The UDP port for radius accounting.
        acctport=1813
        # The UDP port for radius authentication.
#       authport=1812
        # The name or ip address of the radius server.
        name=radius1IP
        # How many times should the plugin send the if there is no response?
        retry=1
        # How long should the plugin wait for a response?
        wait=1
        # The shared secret.
        sharedsecret=password
}
server
{
        # The UDP port for radius accounting.
        acctport=1813
        # The UDP port for radius authentication.
#       authport=1812
        # The name or ip address of the radius server.
        name=radius2IP
        # How many times should the plugin send the if there is no response?
        retry=1
        # How long should the plugin wait for a response?
        wait=1
        # The shared secret.
        sharedsecret=password
}

regards

comicchang commented 10 years ago

Hi,

I see you didn't use the radius server for authentication, that's right? maybe you should test if this plugin and/or your radius server is working properly together by turning on radius auth and log in via radius account.

I'm not very sure about what's going wrong, I'll attach my config file below (for reference)

I just tried this plugin and the traffic is logged in my sql server properly.

$ cat linodeUDP6.cnf
# The NAS identifier which is sent to the RADIUS server
NAS-Identifier=OpenVpn

# The service type which is sent to the RADIUS server
Service-Type=5

# The framed protocol which is sent to the RADIUS server
Framed-Protocol=1

# The NAS port type which is sent to the RADIUS server
NAS-Port-Type=5

# The NAS IP address which is sent to the RADIUS server
NAS-IP-Address=linode

# Path to the OpenVPN configfile. The plugin searches there for
# client-config-dir PATH   (searches for the path)
# status FILE              (searches for the file, version must be 1)
# client-cert-not-required (if the option is used or not)
# username-as-common-name  (if the option is used or not)

OpenVPNConfig=/etc/openvpn/linodeUDP6.conf

# Support for topology option in OpenVPN 2.1
# If you don't specify anything, option "net30" (default in OpenVPN) is used.
# You can only use one of the options at the same time.
# If you use topology option "subnet", fill in the right netmask, e.g. from OpenVPN option "--server NETWORK NETMASK"
subnet=255.255.255.0
# If you use topology option "p2p", fill in the right network, e.g. from OpenVPN option "--server NETWORK NETMASK"
# p2p=10.8.0.1

# Allows the plugin to overwrite the client config in client config file directory,
# default is true
overwriteccfiles=true

# Allows the plugin to use auth control files if OpenVPN (>= 2.1 rc8) provides them.
# The plugin needs write permission to the folder, by default it is the OpenVPN directory (e.g. /etc/openvpm)
# The OpenVPN option tmp-dir changes the directory.
# default is false
# useauthcontrolfile=false

# Only the accouting functionality is used, if no user name to forwarded to the plugin, the common name of certificate is used
# as user name for radius accounting.
# default is false
# accountingonly=false

# If the accounting is non essential, nonfatalaccounting can be set to true.
# If set to true all errors during the accounting procedure are ignored, which can be
# - radius accounting can fail
# - FramedRouted (if configured) maybe not configured correctly
# - errors during vendor specific attributes script execution are ignored
# But if set to true the performance is increased because OpenVPN does not block during the accounting procedure.
# default is false
nonfatalaccounting=false

# Path to a script for vendor specific attributes.
# Leave it out if you don't use an own script.
# vsascript=/root/workspace/radiusplugin_v2.0.5_beta/vsascript.pl

# Path to the pipe for communication with the vsascript.
# Leave it out if you don't use an own script.
# vsanamedpipe=/tmp/vsapipe

# A radius server definition, there could be more than one.
# The priority of the server depends on the order in this file. The first one has the highest priority.

server
{
    # The UDP port for radius accounting.
    acctport=1813
    # The UDP port for radius authentication.
    authport=1812
    # The name or ip address of the radius server.
    name=server1.example.com
    # How many times should the plugin send the if there is no response?
    retry=1
    # How long should the plugin wait for a response?
    wait=1
    # The shared secret.
    sharedsecret=password
}
$ cat linodeUDP6.conf
#################################################
# Sample OpenVPN 2.0 config file for            #
# multi-client server.                          #
#                                               #
# This file is for the server side              #
# of a many-clients <-> one-server              #
# OpenVPN configuration.                        #
#                                               #
# OpenVPN also supports                         #
# single-machine <-> single-machine             #
# configurations (See the Examples page         #
# on the web site for more info).               #
#                                               #
# This config should work on Windows            #
# or Linux/BSD systems.  Remember on            #
# Windows to quote pathnames and use            #
# double backslashes, e.g.:                     #
# "C:\\Program Files\\OpenVPN\\config\\foo.key" #
#                                               #
# Comments are preceded with '#' or ';'         #
#################################################

#for UDP6
mssfix 1432
fast-io

# Which local IP address should OpenVPN
# listen on? (optional)

local some.address.com

# Which TCP/UDP port should OpenVPN listen on?
# If you want to run multiple OpenVPN instances
# on the same machine, use a different port
# number for each one.  You will need to
# open up this port on your firewall.
port 1195

# TCP or UDP server?
;proto tcp
proto udp6

# "dev tun" will create a routed IP tunnel,
# "dev tap" will create an ethernet tunnel.
# Use "dev tap0" if you are ethernet bridging
# and have precreated a tap0 virtual interface
# and bridged it with your ethernet interface.
# If you want to control access policies
# over the VPN, you must create firewall
# rules for the the TUN/TAP interface.
# On non-Windows systems, you can give
# an explicit unit number, such as tun0.
# On Windows, use "dev-node" for this.
# On most systems, the VPN will not function
# unless you partially or fully disable
# the firewall for the TUN/TAP interface.
;dev tap
dev tun

# Windows needs the TAP-Win32 adapter name
# from the Network Connections panel if you
# have more than one.  On XP SP2 or higher,
# you may need to selectively disable the
# Windows firewall for the TAP adapter.
# Non-Windows systems usually don't need this.
;dev-node MyTap

# SSL/TLS root certificate (ca), certificate
# (cert), and private key (key).  Each client
# and the server must have their own cert and
# key file.  The server and all clients will
# use the same ca file.
#
# See the "easy-rsa" directory for a series
# of scripts for generating RSA certificates
# and private keys.  Remember to use
# a unique Common Name for the server
# and each of the client certificates.
#
# Any X509 key management system can be used.
# OpenVPN can also use a PKCS #12 formatted key file
# (see "pkcs12" directive in man page).
ca easy-rsa/keys/ca.crt
cert easy-rsa/keys/server.crt
key easy-rsa/keys/server.key  # This file should be kept secret
crl-verify easy-rsa/keys/crl.pem

# Diffie hellman parameters.
# Generate your own with:
#   openssl dhparam -out dh1024.pem 1024
# Substitute 2048 for 1024 if you are using
# 2048 bit keys.
dh easy-rsa/keys/dh1024.pem

# Configure server mode and supply a VPN subnet
# for OpenVPN to draw client addresses from.
# The server will take 10.8.0.1 for itself,
# the rest will be made available to clients.
# Each client will be able to reach the server
# on 10.8.0.1. Comment this line out if you are
# ethernet bridging. See the man page for more info.
server 10.8.35.0 255.255.255.0

# Maintain a record of client <-> virtual IP address
# associations in this file.  If OpenVPN goes down or
# is restarted, reconnecting clients can be assigned
# the same virtual IP address from the pool that was
# previously assigned.
;ifconfig-pool-persist ipp.txt

# Configure server mode for ethernet bridging.
# You must first use your OS's bridging capability
# to bridge the TAP interface with the ethernet
# NIC interface.  Then you must manually set the
# IP/netmask on the bridge interface, here we
# assume 10.8.0.4/255.255.255.0.  Finally we
# must set aside an IP range in this subnet
# (start=10.8.0.50 end=10.8.0.100) to allocate
# to connecting clients.  Leave this line commented
# out unless you are ethernet bridging.
;server-bridge 10.8.0.4 255.255.255.0 10.8.0.50 10.8.0.100

# Configure server mode for ethernet bridging
# using a DHCP-proxy, where clients talk
# to the OpenVPN server-side DHCP server
# to receive their IP address allocation
# and DNS server addresses.  You must first use
# your OS's bridging capability to bridge the TAP
# interface with the ethernet NIC interface.
# Note: this mode only works on clients (such as
# Windows), where the client-side TAP adapter is
# bound to a DHCP client.
;server-bridge

# Push routes to the client to allow it
# to reach other private subnets behind
# the server.  Remember that these
# private subnets will also need
# to know to route the OpenVPN client
# address pool (10.8.0.0/255.255.255.0)
# back to the OpenVPN server.
;push "route 10.8.32.0 255.255.255.0"
;push "route 192.168.20.0 255.255.255.0"

# To assign specific IP addresses to specific
# clients or if a connecting client has a private
# subnet behind it that should also have VPN access,
# use the subdirectory "ccd" for client-specific
# configuration files (see man page for more info).

# EXAMPLE: Suppose the client
# having the certificate common name "Thelonious"
# also has a small subnet behind his connecting
# machine, such as 192.168.40.128/255.255.255.248.
# First, uncomment out these lines:
;client-config-dir ccd
;route 192.168.40.128 255.255.255.248
# Then create a file ccd/Thelonious with this line:
#   iroute 192.168.40.128 255.255.255.248
# This will allow Thelonious' private subnet to
# access the VPN.  This example will only work
# if you are routing, not bridging, i.e. you are
# using "dev tun" and "server" directives.

# EXAMPLE: Suppose you want to give
# Thelonious a fixed VPN IP address of 10.9.0.1.
# First uncomment out these lines:
;client-config-dir ccd
;route 10.9.0.0 255.255.255.252
# Then add this line to ccd/Thelonious:
#   ifconfig-push 10.9.0.1 10.9.0.2

# Suppose that you want to enable different
# firewall access policies for different groups
# of clients.  There are two methods:
# (1) Run multiple OpenVPN daemons, one for each
#     group, and firewall the TUN/TAP interface
#     for each group/daemon appropriately.
# (2) (Advanced) Create a script to dynamically
#     modify the firewall in response to access
#     from different clients.  See man
#     page for more info on learn-address script.
;learn-address ./script

# If enabled, this directive will configure
# all clients to redirect their default
# network gateway through the VPN, causing
# all IP traffic such as web browsing and
# and DNS lookups to go through the VPN
# (The OpenVPN server machine may need to NAT
# or bridge the TUN/TAP interface to the internet
# in order for this to work properly).
push "redirect-gateway def1 bypass-dhcp"

# Certain Windows-specific network settings
# can be pushed to clients, such as DNS
# or WINS server addresses.  CAVEAT:
# http://openvpn.net/faq.html#dhcpcaveats
# The addresses below refer to the public
# DNS servers provided by opendns.com.
push "dhcp-option DNS 8.8.8.8"
;push "dhcp-option DNS 208.67.220.220"

# Uncomment this directive to allow different
# clients to be able to "see" each other.
# By default, clients will only see the server.
# To force clients to only see the server, you
# will also need to appropriately firewall the
# server's TUN/TAP interface.
client-to-client

# Uncomment this directive if multiple clients
# might connect with the same certificate/key
# files or common names.  This is recommended
# only for testing purposes.  For production use,
# each client should have its own certificate/key
# pair.
#
# IF YOU HAVE NOT GENERATED INDIVIDUAL
# CERTIFICATE/KEY PAIRS FOR EACH CLIENT,
# EACH HAVING ITS OWN UNIQUE "COMMON NAME",
# UNCOMMENT THIS LINE OUT.
;duplicate-cn

# The keepalive directive causes ping-like
# messages to be sent back and forth over
# the link so that each side knows when
# the other side has gone down.
# Ping every 10 seconds, assume that remote
# peer is down if no ping received during
# a 120 second time period.
keepalive 10 120

# For extra security beyond that provided
# by SSL/TLS, create an "HMAC firewall"
# to help block DoS attacks and UDP port flooding.
#
# Generate with:
#   openvpn --genkey --secret ta.key
#
# The server and each client must have
# a copy of this key.
# The second parameter should be '0'
# on the server and '1' on the clients.
tls-auth ta.key 0 # This file is secret
;tls-cipher AES256-SHA

# Select a cryptographic cipher.
# This config item must be copied to
# the client config file as well.
;cipher BF-CBC        # Blowfish (default)
cipher AES-128-CBC   # AES
;cipher AES-256-CFB
;auth SHA256
;cipher DES-EDE3-CBC  # Triple-DES

# Enable compression on the VPN link.
# If you enable it here, you must also
# enable it in the client config file.
comp-lzo

# The maximum number of concurrently connected
# clients we want to allow.
;max-clients 100

# It's a good idea to reduce the OpenVPN
# daemon's privileges after initialization.
#
# You can uncomment this out on
# non-Windows systems.
;user nobody
;group nogroup

# The persist options will try to avoid
# accessing certain resources on restart
# that may no longer be accessible because
# of the privilege downgrade.
persist-key
persist-tun

# Output a short status file showing
# current connections, truncated
# and rewritten every minute.
status logs/linodeUDP6.status 1

# By default, log messages will go to the syslog (or
# on Windows, if running as a service, they will go to
# the "\Program Files\OpenVPN\log" directory).
# Use log or log-append to override this default.
# "log" will truncate the log file on OpenVPN startup,
# while "log-append" will append to it.  Use one
# or the other (but not both).
;log         openvpn6.log
log-append  logs/linodeUDP6.log

# Set the appropriate level of log
# file verbosity.
#
# 0 is silent, except for fatal errors
# 4 is reasonable for general usage
# 5 and 6 can help to debug connection problems
# 9 is extremely verbose
verb 2

# Silence repeating messages.  At most 20
# sequential messages of the same message
# category will be output to the log.
mute 5
#client-connect ./uplinode.sh
#client-disconnect ./downlinode.sh

client-cert-not-required
username-as-common-name
#这里是指定radiusplugin.so这个插件
plugin /etc/openvpn/radiusplugin.so /etc/openvpn/linodeUDP6.cnf
comicchang commented 10 years ago

PS. you can try this

# Only the accouting functionality is used, if no user name to forwarded to the plugin, the common name of certificate is used
# as user name for radius accounting.
# default is false
accountingonly=true
alexxtasi commented 10 years ago

ok my fault... the user must disconnect and then my radius server would display traffic metrics..... forgive me...

So the trick was to set the openvpn's status file status /var/etc/openvpn/server1.status.log 1 since pfSense has it's own method to display those info...

So do you think the libgcrypt's warning has nothing to do with faulty compile and I should close this ?

comicchang commented 10 years ago

ok ..