154 lines
5.3 KiB
C
154 lines
5.3 KiB
C
#pragma once
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#include <sys/socket.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include "evt_core.h"
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#include "algo_utils.h"
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#include "capture_traffic.h"
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#include "url.h"
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#include "utils.h"
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#include "packet.h"
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typedef int (*stream_repair)(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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struct algo_params {
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uint8_t is_waiting_bootstrap;
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char *algo_name, *capture_file, *algo_specific_params;
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int links, fresh_data, redundant_data, base_port;
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stream_repair sr;
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};
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struct algo_ctx;
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typedef void (*algo_init)(struct evt_core_ctx* ctx, struct algo_ctx* app_ctx, struct algo_params* ap);
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typedef int (*algo_ctx_on_buffer)(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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typedef int (*algo_ctx_on_event)(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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typedef void (*algo_ctx_free_misc)(void*);
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struct algo_desc {
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char* name;
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algo_init init;
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algo_ctx_on_buffer on_stream;
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algo_ctx_on_buffer on_datagram;
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algo_ctx_on_event on_err;
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};
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struct algo_ctx {
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struct algo_desc* desc;
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uint8_t link_count;
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uint8_t is_rdy;
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uint8_t past_links;
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struct algo_params ap;
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int ref_count;
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uint64_t udp_rcv, udp_sent, cell_rcv, cell_sent;
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struct capture_ctx cap;
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struct buffer_resources br;
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void* misc; // Additional structures
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algo_ctx_free_misc free_misc; // Fx ptr to free misc
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};
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void algo_naive_init(struct evt_core_ctx* ctx, struct algo_ctx* app_ctx, struct algo_params* ap);
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int algo_naive_on_stream(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_naive_on_datagram(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_naive_on_err(struct evt_core_ctx *ctx, struct evt_core_fdinfo *fdinfo);
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void algo_dup2_init(struct evt_core_ctx* ctx, struct algo_ctx* app_ctx, struct algo_params* ap);
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int algo_dup2_on_stream(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_dup2_on_datagram(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_dup2_on_err(struct evt_core_ctx *ctx, struct evt_core_fdinfo *fdinfo);
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void algo_thunder_init(struct evt_core_ctx* ctx, struct algo_ctx* app_ctx, struct algo_params* ap);
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int algo_thunder_on_stream(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_thunder_on_datagram(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_thunder_on_err(struct evt_core_ctx *ctx, struct evt_core_fdinfo *fdinfo);
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void algo_lightning_init(struct evt_core_ctx* ctx, struct algo_ctx* app_ctx, struct algo_params* ap);
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int algo_lightning_on_stream(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_lightning_on_datagram(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo, struct buffer_packet* bp);
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int algo_lightning_on_err(struct evt_core_ctx *ctx, struct evt_core_fdinfo *fdinfo);
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static struct algo_desc available_algo[] = {
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{
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.name = "naive",
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.init = algo_naive_init,
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.on_stream = algo_naive_on_stream,
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.on_datagram = algo_naive_on_datagram,
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.on_err = algo_naive_on_err
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},
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{
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.name = "dup2",
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.init = algo_dup2_init,
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.on_stream = algo_dup2_on_stream,
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.on_datagram = algo_dup2_on_datagram,
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.on_err = algo_dup2_on_err
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},
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{
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.name = "thunder",
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.init = algo_thunder_init,
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.on_stream = algo_thunder_on_stream,
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.on_datagram = algo_thunder_on_datagram,
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.on_err = algo_thunder_on_err
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},
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{
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.name = "lightning",
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.init = algo_lightning_init,
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.on_stream = algo_lightning_on_stream,
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.on_datagram = algo_lightning_on_datagram,
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.on_err = algo_lightning_on_err
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}
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};
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void algo_main_init(struct evt_core_ctx* evt, struct algo_params* ap);
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int main_on_tcp_co(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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int main_on_tcp_read(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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int main_on_udp_read(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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int main_on_tcp_write(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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int main_on_udp_write (struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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int main_on_timer(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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int main_on_err(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo);
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//@FIXME UGLY
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// A Tor cell size is 512 bytes but handle only 498 bytes of data
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#define TOR_CELL_SIZE 498
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#define MAX_LINKS 64
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struct thunder_ctx {
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// shared/global parameters
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uint8_t total_links;
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struct timespec start_time;
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// scheduler parameters
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uint8_t selected_link;
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uint64_t blacklisted[MAX_LINKS];
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// classifier send side parameters
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struct timespec prev_link_time;
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uint8_t to_increment[MAX_LINKS];
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uint64_t delta_t_per_link[MAX_LINKS];
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uint64_t sent_pkts_on_link[MAX_LINKS];
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// classifier receive side parameters
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uint64_t rcv_delta_t_per_link[MAX_LINKS];
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uint64_t received_pkts_on_link[MAX_LINKS];
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struct timespec prev_rcv_link_time;
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int64_t owdd[MAX_LINKS];
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// uint16_t received_delta_by_links[MAX_LINKS][MAX_LINKS];
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// struct timespec last_received_on_link[MAX_LINKS];
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// prepare/adapt parameters
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uint16_t recv_id;
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uint16_t emit_id;
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// pad/unpad parameter
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size_t monit_pkt_size;
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// user parameters
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int64_t allowed_jitter_ms;
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int scheduler_activated;
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};
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