c3b887f1c5
* io_uring使用buffer pool避免内存分配与释放
* packet io thread与worker thread无锁访问cmsg
* 为解密流量的fd设置默认的TTL
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
#ifndef _TFE_TCP_RESTORE_H
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#define _TFE_TCP_RESTORE_H
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#ifdef __cpluscplus
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extern "C"
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{
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#endif
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enum tcp_restore_pkt_dir
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{
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PKT_DIR_NOT_SET = 0x0,
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PKT_DIR_C2S = 0x1,
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PKT_DIR_S2C = 0x2
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};
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struct tcp_restore_endpoint
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{
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struct sockaddr_storage addr;
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uint32_t seq;
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uint32_t ack;
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uint32_t ts_val;
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uint16_t mss;
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uint16_t window;
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uint8_t wscale;
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bool wscale_perm;
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bool timestamp_perm;
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bool sack_perm;
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};
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struct tcp_restore_info
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{
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enum tcp_restore_pkt_dir cur_dir;
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struct tcp_restore_endpoint client;
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struct tcp_restore_endpoint server;
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char cmsg[2048];
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unsigned int cmsg_len;
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};
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void tfe_tcp_restore_info_dump(const struct tcp_restore_info *info);
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int tfe_tcp_restore_fd_create(const struct tcp_restore_endpoint *endpoint, const struct tcp_restore_endpoint *peer, const char *devname, unsigned int fd_so_mask);
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int tfe_tcp_restore_syn_packet(struct tcp_restore_info *info, struct ether_addr *client_mac, struct ether_addr *server_mac, char *buffer, int size);
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int tfe_tcp_restore_synack_packet(struct tcp_restore_info *info, struct ether_addr *client_mac, struct ether_addr *server_mac, char *buffer, int size);
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int tfe_tcp_restore_ack_packet(struct tcp_restore_info *info, struct ether_addr *client_mac, struct ether_addr *server_mac, char *buffer, int size);
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#ifdef __cpluscplus
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}
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#endif
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#endif |