232 lines
7.5 KiB
Bash
Executable file
232 lines
7.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Test matching of Unix peer credentials with NACM users
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# Use raw unix socket instead of clients (cli/netconf/restconf) since they do
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# magic things with the username and here it needs to be handled explicitly.
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# test matrix:
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# - mode: none, exact, except
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# - username: olof, admin, null, sudo
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# - socket family: unix|ip
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# Magic line must be first in script (see README.md)
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s="$_" ; . ./lib.sh || if [ "$s" = $0 ]; then exit 0; else return 0; fi
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# Raw unit tester of backend unix socket.
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: ${clixon_util_socket:=$(which clixon_util_socket)}
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APPNAME=example
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# Common NACM scripts
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. ./nacm.sh
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cfg=$dir/conf_yang.xml
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fyang=$dir/nacm-example.yang
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cat <<EOF > $fyang
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module nacm-example{
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yang-version 1.1;
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namespace "urn:example:nacm";
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prefix nex;
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import ietf-netconf-acm {
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prefix nacm;
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}
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leaf x{
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type int32;
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description "something to edit";
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}
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}
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EOF
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# The groups are slightly modified from RFC8341 A.1
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# The rule-list is from A.2
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RULES=$(cat <<EOF
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<nacm xmlns="urn:ietf:params:xml:ns:yang:ietf-netconf-acm">
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<enable-nacm>false</enable-nacm>
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<read-default>permit</read-default>
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<write-default>deny</write-default>
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<exec-default>deny</exec-default>
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$NGROUPS
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<rule-list>
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<name>guest-acl</name>
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<group>guest</group>
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<rule>
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<name>deny-ncm</name>
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<module-name>*</module-name>
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<access-operations>*</access-operations>
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<action>deny</action>
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<comment>
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Do not allow guests any access to the NETCONF
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monitoring information.
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</comment>
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</rule>
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</rule-list>
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<rule-list>
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<name>limited-acl</name>
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<group>limited</group>
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<rule>
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<name>permit-get</name>
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<rpc-name>get</rpc-name>
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<module-name>*</module-name>
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<access-operations>exec</access-operations>
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<action>permit</action>
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<comment>
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Allow get
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</comment>
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</rule>
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<rule>
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<name>permit-get-config</name>
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<rpc-name>get-config</rpc-name>
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<module-name>*</module-name>
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<access-operations>exec</access-operations>
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<action>permit</action>
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<comment>
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Allow get-config
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</comment>
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</rule>
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</rule-list>
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$NADMIN
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</nacm>
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<x xmlns="urn:example:nacm">0</x>
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EOF
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)
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# Set cred mode and run nacm operations
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# Arguments:
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# - mode (none,exact,except)
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# - xml/nacm-username
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# - socket family
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# - socket file/addr
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# - precommand /(eg sudo to raise to root)
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function testrun(){
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mode=$1
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username=$2
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family=$3
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sock=$4
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exp=$5
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precmd=$6
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cat <<EOF > $cfg
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<clixon-config xmlns="http://clicon.org/config">
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<CLICON_CONFIGFILE>$cfg</CLICON_CONFIGFILE>
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<CLICON_YANG_DIR>${YANG_INSTALLDIR}</CLICON_YANG_DIR>
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<CLICON_YANG_MAIN_FILE>$fyang</CLICON_YANG_MAIN_FILE>
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<CLICON_SOCK_FAMILY>$family</CLICON_SOCK_FAMILY>
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<CLICON_SOCK>$sock</CLICON_SOCK>
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<CLICON_BACKEND_DIR>/usr/local/lib/$APPNAME/backend</CLICON_BACKEND_DIR>
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<CLICON_BACKEND_PIDFILE>/usr/local/var/$APPNAME/$APPNAME.pidfile</CLICON_BACKEND_PIDFILE>
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<CLICON_XMLDB_DIR>/usr/local/var/$APPNAME</CLICON_XMLDB_DIR>
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<CLICON_NACM_MODE>internal</CLICON_NACM_MODE>
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<CLICON_NACM_DISABLED_ON_EMPTY>true</CLICON_NACM_DISABLED_ON_EMPTY>
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<CLICON_NACM_CREDENTIALS>$mode</CLICON_NACM_CREDENTIALS>
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</clixon-config>
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EOF
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new "test params: -f $cfg"
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if [ $BE -ne 0 ]; then
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new "kill old backend"
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sudo clixon_backend -zf $cfg
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if [ $? -ne 0 ]; then
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err
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fi
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new "start backend -s init -f $cfg"
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start_backend -s init -f $cfg
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fi
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new "wait backend"
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wait_backend
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# First push in nacm rules via regular means
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new "auth set authentication config"
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expecteof_netconf "$clixon_netconf -qf $cfg" 0 "$DEFAULTHELLO" "<rpc $DEFAULTNS><edit-config><target><candidate/></target><config>$RULES</config></edit-config></rpc>" "" "<rpc-reply $DEFAULTNS><ok/></rpc-reply>"
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new "enable nacm"
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expecteof_netconf "$clixon_netconf -qf $cfg" 0 "$DEFAULTHELLO" "<rpc $DEFAULTNS><edit-config><target><candidate/></target><config><nacm xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-acm\"><enable-nacm>true</enable-nacm></nacm></config></edit-config></rpc>" "" "<rpc-reply $DEFAULTNS><ok/></rpc-reply>"
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new "commit it"
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expecteof_netconf "$clixon_netconf -qf $cfg" 0 "$DEFAULTHELLO" "<rpc $DEFAULTNS><commit/></rpc>" "" "<rpc-reply $DEFAULTNS><ok/></rpc-reply>"
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# raw socket test
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if [ -n "$username" ]; then
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XML="<rpc $DEFAULTNS username=\"$username\"><get-config><source><running/></source><filter type=\"xpath\" select=\"/ex:x\" xmlns:ex=\"urn:example:nacm\"/></get-config></rpc>"
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else
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XML="<rpc $DEFAULTNS><get-config><source><running/></source><filter type=\"xpath\" select=\"/ex:x\" xmlns:ex=\"urn:example:nacm\"/></get-config></rpc>"
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fi
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new "get-config mode:$mode user:$username $family $precmd"
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expecteof_netconf "$precmd $clixon_util_socket -a $family -s $sock -D $DBG" 0 "" "$XML" "$ex"
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if [ $BE -ne 0 ]; then # Bring your own backend
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new "Kill backend"
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# Check if premature kill
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pid=$(pgrep -u root -f clixon_backend)
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if [ -z "$pid" ]; then
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err "backend already dead"
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fi
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# kill backend
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stop_backend -f $cfg
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fi
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} # testrun
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OK='^<rpc-reply><data><x xmlns="urn:example:nacm">0</x></data></rpc-reply>$'
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ERROR='^<rpc-reply><rpc-error><error-type>application</error-type><error-tag>access-denied</error-tag><error-severity>error</error-severity><error-message>'
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# UNIX socket, no user, loop mode. All fail since null user cant access anything
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new "Credentials: mode=none, fam=UNIX user=none"
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testrun none "" UNIX $dir/backend.sock "$OK" ""
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new "Credentials: mode=exact, fam=UNIX user=none"
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testrun exact "" UNIX $dir/backend.sock "$OK" ""
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new "Credentials: mode=except, fam=UNIX user=none"
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testrun except "" UNIX $dir/backend.sock "$OK" ""
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# UNIX socket, myuser, loop mode. All should work
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new "Credentials: mode=none, fam=UNIX user=me"
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testrun none "$USER" UNIX $dir/backend.sock "$OK" ""
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new "Credentials: mode=exact, fam=UNIX user=me"
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testrun exact "$USER" UNIX $dir/backend.sock "$OK" ""
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new "Credentials: mode=except, fam=UNIX user=me"
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testrun except "$USER" UNIX $dir/backend.sock "$OK" ""
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# UNIX socket, admin user. First should work
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new "Credentials: mode=none, fam=UNIX user=admin"
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testrun none admin UNIX $dir/backend.sock "$OK" ""
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new "Credentials: mode=exact, fam=UNIX user=admin"
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testrun exact admin UNIX $dir/backend.sock "$ERROR" ""
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new "Credentials: mode=except, fam=UNIX user=admin"
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testrun except admin UNIX $dir/backend.sock "$ERROR" ""
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# UNIX socket, admin user. sudo self to root. First and last should work
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new "Credentials: mode=none, fam=UNIX user=admin sudo"
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testrun none admin UNIX $dir/backend.sock "$OK" sudo
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new "Credentials: mode=exact, fam=UNIX user=admin sudo"
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testrun exact admin UNIX $dir/backend.sock "$ERROR" sudo
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new "Credentials: mode=except, fam=UNIX user=admin sudo"
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testrun except admin UNIX $dir/backend.sock "$OK" sudo
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# IPv4 socket, admin user. First should work
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new "Credentials: mode=none, fam=UNIX user=admin sudo"
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testrun none $USER IPv4 127.0.0.1 "$OK" ""
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new "Credentials: mode=exact, fam=UNIX user=admin sudo"
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testrun exact $USER IPv4 127.0.0.1 "$ERROR" ""
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new "Credentials: mode=except, fam=UNIX user=admin sudo"
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testrun except $USER IPv4 127.0.0.1 "$ERROR" ""
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rm -rf $dir
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# unset conditional parameters
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unset clixon_util_socket
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new "endtest"
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endtest
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