+ @staticmethod
+ def vpp_ipsec_spd_add_entries(node, n_entries, spd_id, priority, inbound,
+ sa_id, raddr_ip, raddr_range):
+ """Create multiple Security Policy Database entries on the VPP node.
+
+ :param node: VPP node to add SPD entries on.
+ :param n_entries: Number of SPD entries to be added.
+ :param spd_id: SPD ID to add entries on.
+ :param priority: SPD entries priority, higher number = higher priority.
+ :param inbound: If True policy is for inbound traffic, otherwise
+ outbound.
+ :param sa_id: SAD entry ID for first entry. Each subsequent entry will
+ SAD entry ID incremented by 1.
+ :param raddr_ip: Policy selector remote IPv4 start address for the first
+ entry. Remote IPv4 end address will be calculated depending on
+ raddr_range parameter. Each subsequent entry will have start address
+ next after IPv4 end address of previous entry.
+ :param raddr_range: Mask specifying range of Policy selector Remote IPv4
+ addresses. Valid values are from 1 to 32.
+ :type node: dict
+ :type n_entries: int
+ :type spd_id: int
+ :type priority: int
+ :type inbound: bool
+ :type sa_id: int
+ :type raddr_ip: string
+ :type raddr_range: int
+ """
+ tmp_filename = '/tmp/ipsec_spd_{}_add_del_entry.vat'.format(sa_id)
+ direction = 'inbound' if inbound else 'outbound'
+ addr_incr = 1 << (32 - raddr_range)
+ addr_ip = int(ip_address(unicode(raddr_ip)))
+ start_str = 'ipsec_spd_add_del_entry spd_id {0} priority {1} {2} ' \
+ 'action protect sa_id'.format(spd_id, priority, direction)
+ with open(tmp_filename, 'w') as tmp_file:
+ for i in range(0, n_entries):
+ r_ip_s = ip_address(addr_ip + addr_incr * i)
+ r_ip_e = ip_address(addr_ip + addr_incr * (i+1) - 1)
+ buf_str = '{0} {1} raddr_start {2} raddr_stop {3}\n'.format(
+ start_str, sa_id+i, r_ip_s, r_ip_e)
+ tmp_file.write(buf_str)
+ vat = VatExecutor()
+ vat.scp_and_execute_script(tmp_filename, node, 300)
+ os.remove(tmp_filename)
+
+ @staticmethod
+ def vpp_ipsec_create_tunnel_interfaces(node1, node2, if1_ip_addr,
+ if2_ip_addr, n_tunnels, crypto_alg,
+ crypto_key, integ_alg, integ_key,
+ raddr_ip1, raddr_ip2, raddr_range):
+ """Create multiple IPsec tunnel interfaces between two VPP nodes.
+
+ :param node1: VPP node 1 to create tunnel interfaces.
+ :param node2: VPP node 2 to create tunnel interfaces.
+ :param if1_ip_addr: VPP node 1 interface IP4 address.
+ :param if2_ip_addr: VPP node 2 interface IP4 address.
+ :param n_tunnels: Number of tunnell interfaces to create.
+ :param crypto_alg: The encryption algorithm name.
+ :param crypto_key: The encryption key string.
+ :param integ_alg: The integrity algorithm name.
+ :param integ_key: The integrity key string.
+ :param raddr_ip1: Policy selector remote IPv4 start address for the
+ first tunnel in direction node1->node2.
+ :param raddr_ip2: Policy selector remote IPv4 start address for the
+ first tunnel in direction node2->node1.
+ :param raddr_range: Mask specifying range of Policy selector Remote IPv4
+ addresses. Valid values are from 1 to 32.
+ :type node1: dict
+ :type node2: dict
+ :type if1_ip_addr: str
+ :type if2_ip_addr: str
+ :type n_tunnels: int
+ :type crypto_alg: CryptoAlg
+ :type crypto_key: str
+ :type integ_alg: IntegAlg
+ :type integ_key: str
+ :type raddr_ip1: string
+ :type raddr_ip2: string
+ :type raddr_range: int
+ """
+
+ spi_1 = 10000
+ spi_2 = 20000
+
+ raddr_ip1_i = int(ip_address(unicode(raddr_ip1)))
+ raddr_ip2_i = int(ip_address(unicode(raddr_ip2)))
+ addr_incr = 1 << (32 - raddr_range)
+
+ tmp_fn1 = '/tmp/ipsec_create_tunnel_dut1.config'
+ tmp_fn2 = '/tmp/ipsec_create_tunnel_dut2.config'
+
+ ckey = crypto_key.encode('hex')
+ ikey = integ_key.encode('hex')
+
+ with open(tmp_fn1, 'w') as tmp_f1, open(tmp_fn2, 'w') as tmp_f2:
+ for i in range(0, n_tunnels):
+ if_s = 'ipsec{}'.format(i)
+ dut1_tunnel_s = 'create ipsec tunnel local-ip {0} local-spi ' \
+ '{1} remote-ip {2} remote-spi {3}\n'.format(
+ if1_ip_addr, spi_1+i, if2_ip_addr, spi_2+i)
+ tmp_f1.write(dut1_tunnel_s)
+ dut2_tunnel_s = 'create ipsec tunnel local-ip {0} local-spi ' \
+ '{1} remote-ip {2} remote-spi {3}\n'.format(
+ if2_ip_addr, spi_2+i, if1_ip_addr, spi_1+i)
+ tmp_f2.write(dut2_tunnel_s)
+ loc_c_key = 'set interface ipsec key {0} local crypto {1} ' \
+ '{2}\n'.format(if_s, crypto_alg.alg_name, ckey)
+ tmp_f1.write(loc_c_key)
+ tmp_f2.write(loc_c_key)
+ rem_c_key = 'set interface ipsec key {0} remote crypto {1} ' \
+ '{2}\n'.format(if_s, crypto_alg.alg_name, ckey)
+ tmp_f1.write(rem_c_key)
+ tmp_f2.write(rem_c_key)
+ if crypto_alg.alg_name != 'aes-gcm-128':
+ loc_i_key = 'set interface ipsec key {0} local integ {1} ' \
+ '{2}\n'.format(if_s, integ_alg.alg_name, ikey)
+ tmp_f1.write(loc_i_key)
+ tmp_f2.write(loc_i_key)
+ rem_i_key = 'set interface ipsec key {0} remote integ {1}' \
+ ' {2}\n'.format(if_s, integ_alg.alg_name, ikey)
+ tmp_f1.write(rem_i_key)
+ tmp_f2.write(rem_i_key)
+ raddr_ip1_s = ip_address(raddr_ip1_i + addr_incr*i)
+ raddr_ip2_s = ip_address(raddr_ip2_i + addr_incr*i)
+ dut1_rte_s = 'ip route add {0}/{1} via {2} {3}\n'.format(
+ raddr_ip2_s, raddr_range, if2_ip_addr, if_s)
+ tmp_f1.write(dut1_rte_s)
+ dut2_rte_s = 'ip route add {0}/{1} via {2} {3}\n'.format(
+ raddr_ip1_s, raddr_range, if1_ip_addr, if_s)
+ tmp_f2.write(dut2_rte_s)
+ up_s = 'set int state {0} up\n'.format(if_s)
+ tmp_f1.write(up_s)
+ tmp_f2.write(up_s)
+
+ vat = VatExecutor()
+ vat.scp_and_execute_cli_script(tmp_fn1, node1, 300)
+ vat.scp_and_execute_cli_script(tmp_fn2, node2, 300)
+ os.remove(tmp_fn1)
+ os.remove(tmp_fn2)
+
+ @staticmethod
+ def vpp_ipsec_add_multiple_tunnels(node1, node2, interface1, interface2,
+ n_tunnels, crypto_alg, crypto_key,
+ integ_alg, integ_key, tunnel_ip1,
+ tunnel_ip2, raddr_ip1, raddr_ip2,
+ raddr_range):
+ """Create multiple IPsec tunnels between two VPP nodes.
+
+ :param node1: VPP node 1 to create tunnels.
+ :param node2: VPP node 2 to create tunnels.
+ :param interface1: Interface name or sw_if_index on node 1.
+ :param interface2: Interface name or sw_if_index on node 2.
+ :param n_tunnels: Number of tunnels to create.
+ :param crypto_alg: The encryption algorithm name.
+ :param crypto_key: The encryption key string.
+ :param integ_alg: The integrity algorithm name.
+ :param integ_key: The integrity key string.
+ :param tunnel_ip1: Tunnel node1 IPv4 address.
+ :param tunnel_ip2: Tunnel node2 IPv4 address.
+ :param raddr_ip1: Policy selector remote IPv4 start address for the
+ first tunnel in direction node1->node2.
+ :param raddr_ip2: Policy selector remote IPv4 start address for the
+ first tunnel in direction node2->node1.
+ :param raddr_range: Mask specifying range of Policy selector Remote IPv4
+ addresses. Valid values are from 1 to 32.
+ :type node1: dict
+ :type node2: dict
+ :type interface1: str or int
+ :type interface2: str or int
+ :type n_tunnels: int
+ :type crypto_alg: CryptoAlg
+ :type crypto_key: str
+ :type integ_alg: str
+ :type integ_key: str
+ :type tunnel_ip1: str
+ :type tunnel_ip2: str
+ :type raddr_ip1: string
+ :type raddr_ip2: string
+ :type raddr_range: int
+ """
+ spd_id = 1
+ p_hi = 100
+ p_lo = 10
+ sa_id_1 = 10000
+ sa_id_2 = 20000
+ spi_1 = 30000
+ spi_2 = 40000
+ proto = 50
+
+ IPsecUtil.vpp_ipsec_add_spd(node1, spd_id)
+ IPsecUtil.vpp_ipsec_spd_add_if(node1, spd_id, interface1)
+ IPsecUtil.vpp_ipsec_spd_add_entry(node1, spd_id, p_hi,
+ PolicyAction.BYPASS, inbound=False,
+ proto=proto)
+ IPsecUtil.vpp_ipsec_spd_add_entry(node1, spd_id, p_hi,
+ PolicyAction.BYPASS, inbound=True,
+ proto=proto)
+
+ IPsecUtil.vpp_ipsec_add_spd(node2, spd_id)
+ IPsecUtil.vpp_ipsec_spd_add_if(node2, spd_id, interface2)
+ IPsecUtil.vpp_ipsec_spd_add_entry(node2, spd_id, p_hi,
+ PolicyAction.BYPASS, inbound=False,
+ proto=proto)
+ IPsecUtil.vpp_ipsec_spd_add_entry(node2, spd_id, p_hi,
+ PolicyAction.BYPASS, inbound=True,
+ proto=proto)
+
+ IPsecUtil.vpp_ipsec_add_sad_entries(node1, n_tunnels, sa_id_1, spi_1,
+ crypto_alg, crypto_key, integ_alg,
+ integ_key, tunnel_ip1, tunnel_ip2)
+
+ IPsecUtil.vpp_ipsec_spd_add_entries(node1, n_tunnels, spd_id, p_lo,
+ False, sa_id_1, raddr_ip2,
+ raddr_range)
+
+ IPsecUtil.vpp_ipsec_add_sad_entries(node2, n_tunnels, sa_id_1, spi_1,
+ crypto_alg, crypto_key, integ_alg,
+ integ_key, tunnel_ip1, tunnel_ip2)
+
+ IPsecUtil.vpp_ipsec_spd_add_entries(node2, n_tunnels, spd_id, p_lo,
+ True, sa_id_1, raddr_ip2,
+ raddr_range)
+
+ IPsecUtil.vpp_ipsec_add_sad_entries(node2, n_tunnels, sa_id_2, spi_2,
+ crypto_alg, crypto_key, integ_alg,
+ integ_key, tunnel_ip2, tunnel_ip1)
+
+ IPsecUtil.vpp_ipsec_spd_add_entries(node2, n_tunnels, spd_id, p_lo,
+ False, sa_id_2, raddr_ip1,
+ raddr_range)
+
+ IPsecUtil.vpp_ipsec_add_sad_entries(node1, n_tunnels, sa_id_2, spi_2,
+ crypto_alg, crypto_key, integ_alg,
+ integ_key, tunnel_ip2, tunnel_ip1)
+
+ IPsecUtil.vpp_ipsec_spd_add_entries(node1, n_tunnels, spd_id, p_lo,
+ True, sa_id_2, raddr_ip1,
+ raddr_range)
+