#ifndef YTB_CONFIG_H #define YTB_CONFIG_H #ifndef KERNEL_SPACE #define USER_SPACE #endif #include "types.h" typedef int (*raw_send_t)(const unsigned char *data, unsigned int data_len); /** * Sends the packet after delay_ms. The function should schedule send and return immediately * (for example, open daemon thread) */ typedef int (*delayed_send_t)(const unsigned char *data, unsigned int data_len, unsigned int delay_ms); struct instance_config_t { raw_send_t send_raw_packet; delayed_send_t send_delayed_packet; }; extern struct instance_config_t instance_config; struct udp_dport_range { uint16_t start; uint16_t end; }; struct domains_list { char *domain_name; uint16_t domain_len; struct domains_list *next; }; struct section_config_t { int id; struct section_config_t *next; struct section_config_t *prev; struct domains_list *sni_domains; struct domains_list *exclude_sni_domains; unsigned int all_domains; int tls_enabled; int fragmentation_strategy; int frag_sni_reverse; int frag_sni_faked; int faking_strategy; int frag_middle_sni; int frag_sni_pos; unsigned char faking_ttl; int fake_sni; unsigned int fake_sni_seq_len; #define FAKE_PAYLOAD_RANDOM 0 #define FAKE_PAYLOAD_CUSTOM 1 // In default mode all other options will be skipped. #define FAKE_PAYLOAD_DEFAULT 2 int fake_sni_type; /* In milliseconds */ unsigned int seg2_delay; int synfake; unsigned int synfake_len; const char *fake_sni_pkt; unsigned int fake_sni_pkt_sz; char *fake_custom_pkt; unsigned int fake_custom_pkt_sz; unsigned int fk_winsize; int fakeseq_offset; #define SNI_DETECTION_PARSE 0 #define SNI_DETECTION_BRUTE 1 int sni_detection; int udp_mode; unsigned int udp_fake_seq_len; unsigned int udp_fake_len; int udp_faking_strategy; struct udp_dport_range *udp_dport_range; int udp_dport_range_len; int udp_filter_quic; }; #define MAX_CONFIGLIST_LEN 64 struct config_t { unsigned int queue_start_num; int threads; int use_gso; int use_ipv6; unsigned int mark; int daemonize; // Same as daemon() noclose int noclose; int syslog; int connbytes_limit; #define VERBOSE_INFO 0 #define VERBOSE_DEBUG 1 #define VERBOSE_TRACE 2 int verbose; struct section_config_t *first_section; struct section_config_t *last_section; }; extern struct config_t config; #define ITER_CONFIG_SECTIONS(config, section) \ for (struct section_config_t *section = (config)->last_section; section != NULL; section = section->prev) #define CONFIG_SECTION_NUMBER(section) ((section)->id) #define MAX_THREADS 16 #ifndef THREADS_NUM #define THREADS_NUM 1 #endif #if THREADS_NUM > MAX_THREADS #error "Too much threads" #endif #ifndef NOUSE_GSO #define USE_GSO #endif #define FRAG_STRAT_TCP 0 #define FRAG_STRAT_IP 1 #define FRAG_STRAT_NONE 2 #ifndef FRAGMENTATION_STRATEGY #define FRAGMENTATION_STRATEGY FRAG_STRAT_TCP #endif #define DEFAULT_RAWSOCKET_MARK (1 << 15) #ifdef USE_SEG2_DELAY #define SEG2_DELAY 100 #endif #define FAKE_TTL 8 // Will invalidate fake packets by out-of-ack_seq out-of-seq request #define FAKE_STRAT_RAND_SEQ (1 << 0) // Will assume that GGC server is located further than FAKE_TTL // Thus, Fake packet will be eliminated automatically. #define FAKE_STRAT_TTL (1 << 1) #define FAKE_STRAT_PAST_SEQ (1 << 2) #define FAKE_STRAT_TCP_CHECK (1 << 3) #define FAKE_STRAT_TCP_MD5SUM (1 << 4) #define FAKE_STRAT_UDP_CHECK (1 << 5) #define FAKE_STRAT_COUNT 6 /** * This macros iterates through all faking strategies and executes code under it. * destination strategy will be available under name of `strategy` variable. */ #define ITER_FAKE_STRAT(fake_bitmask, strategy) \ for (int strategy = 1; strategy <= (1 << FAKE_STRAT_COUNT); strategy <<= 1) \ if ((fake_bitmask) & strategy) #ifndef FAKING_STRATEGY #define FAKING_STRATEGY FAKE_STRAT_PAST_SEQ #endif #define MAX_FAKE_SIZE 1300 #if !defined(SILENT) && !defined(KERNEL_SPACE) #define DEBUG #endif // The Maximum Transmission Unit size for rawsocket // Larger packets will be fragmented. Applicable for Chrome's kyber. #define AVAILABLE_MTU 1400 #define DEFAULT_QUEUE_NUM 537 #define MAX_PACKET_SIZE 8192 #define DEFAULT_SNISTR "googlevideo.com,ggpht.com,ytimg.com,youtube.com,play.google.com,youtu.be,googleapis.com,googleusercontent.com,gstatic.com,l.google.com" static const char default_snistr[] = DEFAULT_SNISTR; enum { UDP_MODE_DROP, UDP_MODE_FAKE, }; enum { UDP_FILTER_QUIC_DISABLED, UDP_FILTER_QUIC_ALL, }; #define default_section_config { \ .sni_domains = NULL, \ .exclude_sni_domains = NULL, \ .all_domains = 0, \ .tls_enabled = 1, \ .frag_sni_reverse = 1, \ .frag_sni_faked = 0, \ .fragmentation_strategy = FRAGMENTATION_STRATEGY, \ .faking_strategy = FAKING_STRATEGY, \ .faking_ttl = FAKE_TTL, \ .fake_sni = 1, \ .fake_sni_seq_len = 1, \ .fake_sni_type = FAKE_PAYLOAD_DEFAULT, \ .fake_custom_pkt = NULL, \ .fake_custom_pkt_sz = 0, \ .frag_middle_sni = 1, \ .frag_sni_pos = 1, \ .fakeseq_offset = 10000, \ .synfake = 0, \ .synfake_len = 0, \ \ .seg2_delay = 0, \ \ .sni_detection = SNI_DETECTION_PARSE, \ \ .udp_mode = UDP_MODE_FAKE, \ .udp_fake_seq_len = 6, \ .udp_fake_len = 64, \ .udp_faking_strategy = FAKE_STRAT_UDP_CHECK, \ .udp_dport_range = NULL, \ .udp_dport_range_len = 0, \ .udp_filter_quic = UDP_FILTER_QUIC_DISABLED, \ \ .prev = NULL, \ .next = NULL, \ .id = 0, \ } #define default_config_set { \ .threads = THREADS_NUM, \ .queue_start_num = DEFAULT_QUEUE_NUM, \ .mark = DEFAULT_RAWSOCKET_MARK, \ .use_ipv6 = 1, \ .connbytes_limit = 8, \ \ .verbose = VERBOSE_DEBUG, \ .use_gso = 1, \ \ .first_section = NULL, \ .last_section = NULL, \ \ .daemonize = 0, \ .noclose = 0, \ .syslog = 0, \ } #define CONFIG_SET(config) \ struct config_t config = default_config_set; \ config->last_section = &(config.default_config) \ #endif /* YTB_CONFIG_H */