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4a77657cbc
This changes ABI due to the changed opcodes and includes the following: * rule numbers and named object indexes converted to 32-bits * all hardcoded maximum rule number was replaced with IPFW_DEFAULT_RULE macro * now it is possible to grow maximum numbers or rules in build time * several opcodes converted to ipfw_insn_u32 to keep rulenum: O_CALL, O_SKIPTO * call stack modified to keep u32 rulenum. The behaviour of O_CALL opcode was changed to avoid possible packets looping. Now when call stack is overflowed or mbuf tag allocation failed, a packet will be dropped instead of skipping to next rule. * 'return' action now have two modes to specify return point: 'next-rulenum' and 'next-rule' * new lookup key added for O_IP_DST_LOOKUP opcode 'lookup rulenum' * several opcodes converted to keep u32 named object indexes in special structure ipfw_insn_kidx * tables related opcodes modified to use two structures: ipfw_insn_kidx and ipfw_insn_table * added ability for table value matching for specific value type in 'table(name,valtype=value)' opcode * dynamic states and eaction code converted to use u32 rulenum and named objects indexes * added insntod() and insntoc() macros to cast to specific ipfw instruction type * default sockopt version was changed to IP_FW3_OPVER=1 * FreeBSD 7-11 rule format support was removed * added ability to generate special rtsock messages via log opcode * added IP_FW_SKIPTO_CACHE sockopt to enable/disable skipto cache. It helps to reduce overhead when many rules are modified in batch. * added ability to keep NAT64LSN states during sets swapping Obtained from: Yandex LLC Relnotes: yes Sponsored by: Yandex LLC Differential Revision: https://reviews.freebsd.org/D46183 |
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| route_netlink.c | ||