91 lines
2.2 KiB
Text
91 lines
2.2 KiB
Text
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#ifndef NICO_NAT64_SESSION
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#define NICO_NAT64_SESSION
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/********************** NAT64 sessions ***********************************/
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/* automatic translations */
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action nat64_tcp_session_translate(
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ipv4_addr_t src_addr,
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bit<16> src_port,
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ipv4_addr_t dst_addr,
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bit<16> dst_port)
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{
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hdr.ipv4.setValid();
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hdr.tcp.src_port = src_port;
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hdr.tcp.dst_port = dst_port;
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nat64_generic(src_addr, dst_addr);
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}
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action nat46_tcp_session_translate(
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ipv6_addr_t src_addr,
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bit<16> src_port,
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ipv6_addr_t dst_addr,
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bit<16> dst_port)
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{
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hdr.ipv6.setValid();
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hdr.tcp.src_port = src_port;
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hdr.tcp.dst_port = dst_port;
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nat46_generic(src_addr, dst_addr);
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}
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/* We are in the right range, need to create a session entry */
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action nat64_tcp_session_create()
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{
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controller_reply(TASK_NAT64_TCP_SESSION);
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}
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/* Used for detecting traffic that should have a session */
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table nat64_session {
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key = {
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hdr.ipv6.dst_addr: lpm;
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}
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actions = {
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controller_debug_table_id;
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NoAction;
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}
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size = NAT64_TABLE_SIZE;
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default_action = controller_debug_table_id(TABLE_NAT64_SESSION);
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}
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table nat64_tcp_session {
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key = {
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hdr.ipv6.src_addr: exact;
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hdr.ipv6.dst_addr: exact;
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hdr.tcp.src_port: exact;
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hdr.tcp.dst_port: exact;
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}
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actions = {
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controller_debug_table_id;
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nat64_tcp_session_create;
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nat64_tcp_session_translate;
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NoAction;
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}
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size = NAT64_TABLE_SIZE;
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default_action = nat64_tcp_session_create;
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}
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table nat46_tcp_session {
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key = {
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hdr.ipv6.src_addr: exact;
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hdr.ipv6.dst_addr: exact;
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hdr.tcp.src_port: exact;
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hdr.tcp.dst_port: exact;
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}
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actions = {
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controller_debug_table_id;
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nat46_tcp_session_translate;
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NoAction;
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}
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size = NAT64_TABLE_SIZE;
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//default_action = controller_debug_table_id(TABLE_NAT64_TCP);
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default_action = NoAction;
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}
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#endif
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