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clixon/test/test_nacm_protocol.sh
Olof hagsand e7b60619da * Pushed tag to 4.0.1.PRE 
* Restconf RFC 8040 increased feature compliance
  * Cache-Control: no-cache added in HTTP responses (RFC Section 5.5)
  * Restconf monitoring capabilities (RFC Section 9.1)
* Added support for Yang extensions
  * New plugin callback: ca_extension
  * Main backend example includes example code on how to implement a Yang extension in a plugin.
* JSON changes
  * Non-pretty-print output removed all extra spaces.
    * Example: `{"nacm-example:x": 42}` --> {"nacm-example:x":42}`
  * Empty JSON container changed from `null` to `{}`.
    * Empty list and leafs remain as `null`
* Removed unnecessary configure dependencies
  * libnsl, libcrypt, libm, if_vlan,...
* pseudo-plugin added, to enable callbacks also for main programs. Useful for extensions
* Yang Unique statements with multiple schema identifiers did not work on some platforms due to memory error.
2019-07-23 22:11:14 +02:00

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#!/bin/bash
# Authentication and authorization and IETF NACM
# NACM protocol operation rules
# @see RFC 8341 A.1 and A.3 (and permit-all from A.2)
# Tests for three protocol operation rules (all apply to module ietf-netconf)
# deny-kill-session: This rule prevents the "limited" group or the
# "guest" group from invoking the NETCONF <kill-session> protocol
# operation.
# deny-delete-config: This rule prevents the "limited" group or the
# "guest" group from invoking the NETCONF <delete-config> protocol
# operation.
# permit-edit-config: This rule allows the "limited" group to invoke
# the NETCONF <edit-config> protocol operation. This rule will have
# no real effect unless the "exec-default" leaf is set to "deny".
#
# From RFC8040, I conclude that commit/discard should be done automatically
# BY THE SYSTEM
# Otherwise, if the device supports :candidate, all edits to
# configuration nodes in {+restconf}/data are performed in the
# candidate configuration datastore. The candidate MUST be
# automatically committed to running immediately after each successful
# edit.
# Which means that restconf -X DELETE /data translates to edit-config + commit
# which is allowed.
# Magic line must be first in script (see README.md)
s="$_" ; . ./lib.sh || if [ "$s" = $0 ]; then exit 0; else return 0; fi
APPNAME=example
# Common NACM scripts
. ./nacm.sh
cfg=$dir/conf_yang.xml
fyang=$dir/nacm-example.yang
cat <<EOF > $cfg
<clixon-config xmlns="http://clicon.org/config">
<CLICON_CONFIGFILE>$cfg</CLICON_CONFIGFILE>
<CLICON_FEATURE>ietf-netconf:startup</CLICON_FEATURE>
<CLICON_YANG_DIR>/usr/local/share/clixon</CLICON_YANG_DIR>
<CLICON_YANG_DIR>$IETFRFC</CLICON_YANG_DIR>
<CLICON_YANG_MAIN_FILE>$fyang</CLICON_YANG_MAIN_FILE>
<CLICON_CLISPEC_DIR>/usr/local/lib/$APPNAME/clispec</CLICON_CLISPEC_DIR>
<CLICON_RESTCONF_DIR>/usr/local/lib/$APPNAME/restconf</CLICON_RESTCONF_DIR>
<CLICON_CLI_DIR>/usr/local/lib/$APPNAME/cli</CLICON_CLI_DIR>
<CLICON_CLI_MODE>$APPNAME</CLICON_CLI_MODE>
<CLICON_SOCK>/usr/local/var/$APPNAME/$APPNAME.sock</CLICON_SOCK>
<CLICON_BACKEND_DIR>/usr/local/lib/$APPNAME/backend</CLICON_BACKEND_DIR>
<CLICON_BACKEND_PIDFILE>/usr/local/var/$APPNAME/$APPNAME.pidfile</CLICON_BACKEND_PIDFILE>
<CLICON_CLI_GENMODEL_COMPLETION>1</CLICON_CLI_GENMODEL_COMPLETION>
<CLICON_XMLDB_DIR>/usr/local/var/$APPNAME</CLICON_XMLDB_DIR>
<CLICON_RESTCONF_PRETTY>false</CLICON_RESTCONF_PRETTY>
<CLICON_NACM_MODE>internal</CLICON_NACM_MODE>
</clixon-config>
EOF
cat <<EOF > $fyang
module nacm-example{
yang-version 1.1;
namespace "urn:example:nacm";
prefix nacm;
import clixon-example {
prefix ex;
}
import ietf-netconf-acm {
prefix nacm;
}
leaf x{
type int32;
description "something to edit";
}
}
EOF
# The groups are slightly modified from RFC8341 A.1
# The rule-list is from A.2
RULES=$(cat <<EOF
<nacm xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-acm">
<enable-nacm>false</enable-nacm>
<read-default>deny</read-default>
<write-default>permit</write-default>
<exec-default>deny</exec-default>
$NGROUPS
<rule-list>
<name>guest-limited-acl</name>
<group>limited</group>
<group>guest</group>
<rule>
<name>deny-kill-session</name>
<module-name>ietf-netconf</module-name>
<rpc-name>kill-session</rpc-name>
<access-operations>exec</access-operations>
<action>deny</action>
<comment>
Do not allow the 'limited' group or the 'guest' group
to kill another session.
</comment>
</rule>
<rule>
<name>deny-delete-config</name>
<module-name>ietf-netconf</module-name>
<rpc-name>delete-config</rpc-name>
<access-operations>exec</access-operations>
<action>deny</action>
<comment>
Do not allow the 'limited' group or the 'guest' group
to delete any configurations.
</comment>
</rule>
</rule-list>
<rule-list>
<name>limited-acl</name>
<group>limited</group>
<rule>
<name>permit-edit-config</name>
<module-name>ietf-netconf</module-name>
<rpc-name>edit-config</rpc-name>
<access-operations>exec</access-operations>
<action>permit</action>
<comment>
Allow the 'limited' group to edit the configuration.
</comment>
</rule>
</rule-list>
$NADMIN
</nacm>
<x xmlns="urn:example:nacm">0</x>
EOF
)
new "test params: -f $cfg"
if [ $BE -ne 0 ]; then
new "kill old backend"
sudo clixon_backend -zf $cfg
if [ $? -ne 0 ]; then
err
fi
new "start backend -s init -f $cfg"
start_backend -s init -f $cfg
fi
new "kill old restconf daemon"
sudo pkill -u www-data -f "/www-data/clixon_restconf"
new "start restconf daemon (-a is enable basic authentication)"
start_restconf -f $cfg -- -a
new "waiting"
wait_backend
wait_restconf
new "auth set authentication config"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config>$RULES</config></edit-config></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
new "commit it"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><commit/></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
new "enable nacm"
expecteq "$(curl -u andy:bar -sS -X PUT -d '{"ietf-netconf-acm:enable-nacm": true}' http://localhost/restconf/data/ietf-netconf-acm:nacm/enable-nacm)" 0 ""
#--------------- nacm enabled
new "admin get nacm"
expecteq "$(curl -u andy:bar -sS -X GET http://localhost/restconf/data/nacm-example:x)" 0 '{"nacm-example:x":0}
'
# Rule 1: deny-kill-session
new "deny-kill-session: limited fail (netconf)"
expecteof "$clixon_netconf -qf $cfg -U wilma" 0 "<rpc><kill-session><session-id>44</session-id></kill-session></rpc>]]>]]>" "^<rpc-reply><rpc-error><error-type>application</error-type><error-tag>access-denied</error-tag><error-severity>error</error-severity><error-message>access denied</error-message></rpc-error></rpc-reply>]]>]]>$"
new "deny-kill-session: guest fail (netconf)"
expecteof "$clixon_netconf -qf $cfg -U guest" 0 "<rpc><kill-session><session-id>44</session-id></kill-session></rpc>]]>]]>" "^<rpc-reply><rpc-error><error-type>application</error-type><error-tag>access-denied</error-tag><error-severity>error</error-severity><error-message>access denied</error-message></rpc-error></rpc-reply>]]>]]>$"
new "deny-kill-session: admin ok (netconf)"
expecteof "$clixon_netconf -qf $cfg -U andy" 0 "<rpc><kill-session><session-id>44</session-id></kill-session></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
# Rule 2: deny-delete-config
new "deny-delete-config: limited fail (netconf)"
expecteof "$clixon_netconf -qf $cfg -U wilma" 0 "<rpc><delete-config><target><startup/></target></delete-config></rpc>]]>]]>" "^<rpc-reply><rpc-error><error-type>application</error-type><error-tag>access-denied</error-tag><error-severity>error</error-severity><error-message>access denied</error-message></rpc-error></rpc-reply>]]>]]>$"
new "deny-delete-config: guest fail (restconf)"
expecteq "$(curl -u guest:bar -sS -X DELETE http://localhost/restconf/data)" 0 '{"ietf-restconf:errors":{"error":{"error-type":"application","error-tag":"access-denied","error-severity":"error","error-message":"default deny"}}}
'
# In restconf delete-config is translated to edit-config which is permitted
new "deny-delete-config: limited fail (restconf) ok"
expecteq "$(curl -u wilma:bar -sS -X DELETE http://localhost/restconf/data)" 0 ''
new "admin get nacm (should fail)"
expecteq "$(curl -u andy:bar -sS -X GET http://localhost/restconf/data/nacm-example:x)" 0 '{"ietf-restconf:errors":{"error":{"rpc-error":{"error-type":"application","error-tag":"invalid-value","error-severity":"error","error-message":"Instance does not exist"}}}}
'
new "deny-delete-config: admin ok (restconf)"
expecteq "$(curl -u andy:bar -sS -X DELETE http://localhost/restconf/data)" 0 ''
# Here the whole config is gone so we need to start again
new "auth set authentication config (restart)"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><edit-config><target><candidate/></target><config>$RULES</config></edit-config></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
new "commit it"
expecteof "$clixon_netconf -qf $cfg" 0 "<rpc><commit/></rpc>]]>]]>" "^<rpc-reply><ok/></rpc-reply>]]>]]>$"
new "enable nacm"
expecteq "$(curl -u andy:bar -sS -X PUT -d '{"ietf-netconf-acm:enable-nacm": true}' http://localhost/restconf/data/ietf-netconf-acm:nacm/enable-nacm)" 0 ""
# Rule 3: permit-edit-config
new "permit-edit-config: limited ok restconf"
expecteq "$(curl -u wilma:bar -sS -X PUT -d '{"nacm-example:x":2}' http://localhost/restconf/data/nacm-example:x)" 0 ''
new "permit-edit-config: guest fail restconf"
expecteq "$(curl -u guest:bar -sS -X PUT -d '{"nacm-example:x":2}' http://localhost/restconf/data/nacm-example:x)" 0 '{"ietf-restconf:errors":{"error":{"error-type":"application","error-tag":"access-denied","error-severity":"error","error-message":"default deny"}}}
'
new "Kill restconf daemon"
stop_restconf
if [ $BE -eq 0 ]; then
exit # BE
fi
new "Kill backend"
# Check if premature kill
pid=`pgrep -u root -f clixon_backend`
if [ -z "$pid" ]; then
err "backend already dead"
fi
# kill backend
stop_backend -f $cfg
rm -rf $dir
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