Cross Reference: /frameworks/base/services/net/java/android/net/apf/ApfFilter.java

Lines Matching refs:gen
594         // Append a filter for this RA to {@code gen}. Jump to DROP_LABEL if it should be dropped.
597         long generateFilterLocked(ApfGenerator gen) throws IllegalInstructionException {
600             gen.addLoadFromMemory(Register.R0, gen.PACKET_SIZE_MEMORY_SLOT);
601             gen.addJumpIfR0NotEquals(mPacket.capacity(), nextFilterLabel);
604             gen.addLoadFromMemory(Register.R0, gen.FILTER_AGE_MEMORY_SLOT);
605             gen.addJumpIfR0GreaterThan(filterLifetime, nextFilterLabel);
614                     gen.addLoadImmediate(Register.R0, nonLifetime.first);
615                     gen.addJumpIfBytesNotEqual(Register.R0,
630                         case 4: gen.addLoad32(Register.R0, offset); break;
631                         case 2: gen.addLoad16(Register.R0, offset); break;
634                     gen.addJumpIfR0LessThan(filterLifetime, nextFilterLabel);
637             gen.addJump(gen.DROP_LABEL);
638             gen.defineLabel(nextFilterLabel);
686     private void generateArpFilterLocked(ApfGenerator gen) throws IllegalInstructionException {
706         gen.addLoadImmediate(Register.R0, ARP_HEADER_OFFSET);
707         gen.addJumpIfBytesNotEqual(Register.R0, ARP_IPV4_HEADER, gen.PASS_LABEL);
710         gen.addLoad16(Register.R0, ARP_OPCODE_OFFSET);
711         gen.addJumpIfR0Equals(ARP_OPCODE_REQUEST, checkTargetIPv4); // Skip to unicast check
712         gen.addJumpIfR0NotEquals(ARP_OPCODE_REPLY, gen.PASS_LABEL);
715         gen.addLoadImmediate(Register.R0, ETH_DEST_ADDR_OFFSET);
716         gen.addJumpIfBytesNotEqual(Register.R0, ETH_BROADCAST_MAC_ADDRESS, gen.PASS_LABEL);
719         gen.defineLabel(checkTargetIPv4);
722             gen.addLoad32(Register.R0, ARP_TARGET_IP_ADDRESS_OFFSET);
723             gen.addJumpIfR0Equals(IPV4_ANY_HOST_ADDRESS, gen.DROP_LABEL);
727             gen.addLoadImmediate(Register.R0, ARP_TARGET_IP_ADDRESS_OFFSET);
728             gen.addJumpIfBytesNotEqual(Register.R0, mIPv4Address, gen.DROP_LABEL);
731         gen.addJump(gen.PASS_LABEL);
741     private void generateIPv4FilterLocked(ApfGenerator gen) throws IllegalInstructionException {
760             gen.addLoad8(Register.R0, IPV4_PROTOCOL_OFFSET);
761             gen.addJumpIfR0NotEquals(IPPROTO_UDP, skipDhcpv4Filter);
763             gen.addLoad16(Register.R0, IPV4_FRAGMENT_OFFSET_OFFSET);
764             gen.addJumpIfR0AnyBitsSet(IPV4_FRAGMENT_OFFSET_MASK, skipDhcpv4Filter);
766             gen.addLoadFromMemory(Register.R1, gen.IPV4_HEADER_SIZE_MEMORY_SLOT);
767             gen.addLoad16Indexed(Register.R0, UDP_DESTINATION_PORT_OFFSET);
768             gen.addJumpIfR0NotEquals(DHCP_CLIENT_PORT, skipDhcpv4Filter);
770             gen.addLoadImmediate(Register.R0, DHCP_CLIENT_MAC_OFFSET);
772             gen.addAddR1();
773             gen.addJumpIfBytesNotEqual(Register.R0, mHardwareAddress, skipDhcpv4Filter);
774             gen.addJump(gen.PASS_LABEL);
777             gen.defineLabel(skipDhcpv4Filter);
780             gen.addLoad8(Register.R0, IPV4_DEST_ADDR_OFFSET);
781             gen.addAnd(0xf0);
782             gen.addJumpIfR0Equals(0xe0, gen.DROP_LABEL);
785             gen.addLoad32(Register.R0, IPV4_DEST_ADDR_OFFSET);
786             gen.addJumpIfR0Equals(IPV4_BROADCAST_ADDRESS, gen.DROP_LABEL);
789                 gen.addJumpIfR0Equals(broadcastAddr, gen.DROP_LABEL);
793             gen.addLoadImmediate(Register.R0, ETH_DEST_ADDR_OFFSET);
794             gen.addJumpIfBytesNotEqual(Register.R0, ETH_BROADCAST_MAC_ADDRESS, gen.PASS_LABEL);
795             gen.addJump(gen.DROP_LABEL);
799         gen.addJump(gen.PASS_LABEL);
810     private void generateIPv6FilterLocked(ApfGenerator gen) throws IllegalInstructionException {
822         gen.addLoad8(Register.R0, IPV6_NEXT_HEADER_OFFSET);
828             gen.addJumpIfR0Equals(IPPROTO_ICMPV6, skipIpv6MulticastFilterLabel);
831             gen.addLoad8(Register.R0, IPV6_DEST_ADDR_OFFSET);
832             gen.addJumpIfR0Equals(0xff, gen.DROP_LABEL);
834             gen.addJump(gen.PASS_LABEL);
835             gen.defineLabel(skipIpv6MulticastFilterLabel);
838             gen.addJumpIfR0NotEquals(IPPROTO_ICMPV6, gen.PASS_LABEL);
843         gen.addLoad8(Register.R0, ICMP6_TYPE_OFFSET);
845         gen.addJumpIfR0Equals(ICMP6_ROUTER_SOLICITATION, gen.DROP_LABEL);
847         gen.addJumpIfR0NotEquals(ICMP6_NEIGHBOR_ANNOUNCEMENT, skipUnsolicitedMulticastNALabel);
850         gen.addLoadImmediate(Register.R0, IPV6_DEST_ADDR_OFFSET);
851         gen.addJumpIfBytesNotEqual(Register.R0, IPV6_ALL_NODES_ADDRESS,
853         gen.addJump(gen.DROP_LABEL);
854         gen.defineLabel(skipUnsolicitedMulticastNALabel);
875         ApfGenerator gen = new ApfGenerator();
877         gen.setApfVersion(mApfCapabilities.apfVersionSupported);
893         gen.addLoad16(Register.R0, ETH_ETHERTYPE_OFFSET);
894         gen.addJumpIfR0NotEquals(ETH_P_ARP, skipArpFiltersLabel);
895         generateArpFilterLocked(gen);
896         gen.defineLabel(skipArpFiltersLabel);
903         gen.addJumpIfR0NotEquals(ETH_P_IP, skipIPv4FiltersLabel);
904         generateIPv4FilterLocked(gen);
905         gen.defineLabel(skipIPv4FiltersLabel);
912         gen.addJumpIfR0Equals(ETH_P_IPV6, ipv6FilterLabel);
915         gen.addLoadImmediate(Register.R0, ETH_DEST_ADDR_OFFSET);
916         gen.addJumpIfBytesNotEqual(Register.R0, ETH_BROADCAST_MAC_ADDRESS, gen.PASS_LABEL);
917         gen.addJump(gen.DROP_LABEL);
920         gen.defineLabel(ipv6FilterLabel);
921         generateIPv6FilterLocked(gen);
922         return gen;
937             ApfGenerator gen = beginProgramLocked();
939                 ra.generateFilterLocked(gen);
941                 if (gen.programLengthOverEstimate() > mApfCapabilities.maximumApfProgramSize) break;
945             gen = beginProgramLocked();
947                 programMinLifetime = Math.min(programMinLifetime, ra.generateFilterLocked(gen));
951             program = gen.generate();