72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
#pragma once
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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struct ip_reassembly_config
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{
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uint8_t enable;
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uint32_t bucket_entries; // range: [1, 4294967295] (must be power of 2)
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uint32_t bucket_num; // range: [1, 4294967295]
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uint64_t ip_frag_timeout_ms; // range: [1, 60000] (ms)
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uint64_t ip_frag_expire_polling_interval_ms; // range: [0, 60000] (ms)
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uint64_t ip_frag_expire_polling_limit; // range: [1, 1024]
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};
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struct __attribute__((aligned(64))) ip_reassembly_stat
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{
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// IPv4 frag stat
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uint64_t ip4_defrags_expected;
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uint64_t ip4_defrags_succeed;
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uint64_t ip4_defrags_failed_timeout;
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uint64_t ip4_defrags_failed_invalid_length;
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uint64_t ip4_defrags_failed_overlap;
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uint64_t ip4_defrags_failed_too_many_frag;
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uint64_t ip4_frags;
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uint64_t ip4_frags_freed;
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uint64_t ip4_frags_buffered;
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uint64_t ip4_frags_bypass_no_buffer;
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uint64_t ip4_frags_bypass_dup_fist_frag;
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uint64_t ip4_frags_bypass_dup_last_frag;
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// IPv6 frag stat
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uint64_t ip6_defrags_expected;
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uint64_t ip6_defrags_succeed;
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uint64_t ip6_defrags_failed_timeout;
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uint64_t ip6_defrags_failed_invalid_length;
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uint64_t ip6_defrags_failed_overlap;
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uint64_t ip6_defrags_failed_too_many_frag;
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uint64_t ip6_frags;
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uint64_t ip6_frags_freed;
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uint64_t ip6_frags_buffered;
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uint64_t ip6_frags_bypass_no_buffer;
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uint64_t ip6_frags_bypass_dup_fist_frag;
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uint64_t ip6_frags_bypass_dup_last_frag;
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};
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struct ip_reassembly_config *ip_reassembly_config_new(const char *toml_file);
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void ip_reassembly_config_free(struct ip_reassembly_config *cfg);
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void ip_reassembly_config_print(const struct ip_reassembly_config *cfg);
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struct ip_reassembly *ip_reassembly_new(const struct ip_reassembly_config *cfg, uint64_t now);
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void ip_reassembly_free(struct ip_reassembly *assy);
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void ip_reassembly_expire(struct ip_reassembly *assy, uint64_t now);
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struct ip_reassembly_stat *ip_reassembly_stat(struct ip_reassembly *assy);
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/*
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* Returns the reassembled packet, or NULL if the packet is not reassembled
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* The returned packet should be freed by calling the packet_free() function
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*/
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struct packet *ip_reassembly_packet(struct ip_reassembly *assy, const struct packet *pkt, uint64_t now);
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struct packet *ipv4_reassembly_packet(struct ip_reassembly *assy, const struct packet *pkt, uint64_t now);
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struct packet *ipv6_reassembly_packet(struct ip_reassembly *assy, const struct packet *pkt, uint64_t now);
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#ifdef __cplusplus
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}
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#endif
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