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85 lines
2.8 KiB
85 lines
2.8 KiB
// tcp_proxy_client.h — TCP прокси-клиент: стек lwIP TCP → ETCP → удалённый exit узел |
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#ifndef TCP_PROXY_CLIENT_H |
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#define TCP_PROXY_CLIENT_H |
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#include <stdint.h> |
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#include <stddef.h> |
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#include "../lib/socket_compat.h" |
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#include "../lib/ll_queue.h" |
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struct UASYNC; |
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struct UTUN_INSTANCE; |
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struct ETCP_CONN; |
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struct tun_if; |
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struct ll_queue; |
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struct ll_entry; |
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struct memory_pool; |
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struct tcp_proxy_client_mapping_config; |
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struct tcp_proxy_server; |
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struct lwip_tcp_ctx; |
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struct socks_proxy_conn; |
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struct listen_ctx; |
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struct tcp_pcb; |
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struct tcp_proxy_client_conn { |
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struct tcp_proxy_client_conn* next; |
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struct tcp_proxy_client* proxy; |
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struct tcp_pcb* pcb; |
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uint32_t stream_id; |
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struct ll_queue* to_lwip; // DATA от exit → lwIP (управление потоком) |
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uint8_t fin_local; // локальная сторона отправила FIN (lwIP) |
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uint8_t fin_remote; // exit отправил FIN (назначение закрылось) |
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uint8_t rem_closed; // exit отправил CLOSE |
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uint8_t error; // ошибка, немедленная очистка |
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uint8_t close_sent; // отправили CLOSE/ERROR в exit |
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uint8_t close_pending; // CLOSE/ERROR не доставлен, ждём повтора |
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uint8_t* tx_buf; // буфер при backpressure (lwIP→ETCP send fail) |
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uint16_t tx_len; |
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struct queue_waiter_handle tx_waiter; |
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uint8_t dest_ip[4]; |
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uint16_t dest_port; |
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}; |
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struct tcp_proxy_client { |
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struct UTUN_INSTANCE* inst; |
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struct UASYNC* ua; |
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struct tun_if* tun; |
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struct tcp_proxy_client_conn* conns; |
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int conn_count; |
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struct memory_pool* entry_pool; |
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uint32_t next_stream_id; |
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uint64_t via_node_id; |
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struct lwip_tcp_ctx* lwip; |
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struct tcp_proxy_client_mapping_config* mappings; // указатель на конфиг |
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int mapping_count; |
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// SOCKS proxy |
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int socks_enabled; |
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struct socks_proxy_conn* socks_conns; |
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int socks_conn_count; |
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struct listen_ctx* socks_listen; |
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// HTTP CONNECT proxy |
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int http_proxy_enabled; |
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struct socks_proxy_conn* http_conns; |
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int http_conn_count; |
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struct listen_ctx* http_listen; |
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}; |
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struct tcp_proxy_client* tcp_proxy_client_create(struct UTUN_INSTANCE* inst, struct UASYNC* ua, |
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const char* tun_name, const char* tun_ip, int mtu, int test_mode, |
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struct tcp_proxy_client_mapping_config* mappings, int mapping_count, |
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uint64_t via_node_id, |
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int socks_enabled, const char* socks_addr, |
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int http_proxy_enabled, const char* http_proxy_addr); |
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void tcp_proxy_client_destroy(struct tcp_proxy_client* p); |
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void tcp_proxy_client_router_recv_cb(struct ETCP_CONN* conn, struct ll_entry* entry); |
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#endif // TCP_PROXY_CLIENT_H
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