1 #ifndef _LIBSLIRP_H 2 #define _LIBSLIRP_H 3 4 #include <stdint.h> 5 #include <stdio.h> 6 #include "sockets.h" 7 #include "slirp.h" 8 #ifdef _WIN32 9 # define WIN32_LEAN_AND_MEAN 10 # define socket_close winsock2_socket_close3 11 # include <winsock2.h> 12 # undef socket_close 13 #else 14 # include <sys/select.h> 15 #endif 16 17 #ifdef __cplusplus 18 extern "C" { 19 #endif 20 21 struct mbuf; 22 23 int inet_strtoip(const char* str, uint32_t *ip); 24 char* inet_iptostr(uint32_t ip); 25 26 void slirp_init(int restricted, const char *special_ip); 27 28 void slirp_select_fill(int *pnfds, 29 fd_set *readfds, fd_set *writefds, fd_set *xfds); 30 31 void slirp_select_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds); 32 33 void slirp_input(const uint8_t *pkt, int pkt_len); 34 35 /* you must provide the following functions: */ 36 int slirp_can_output(void); 37 void slirp_output(const uint8_t *pkt, int pkt_len); 38 39 /* ---------------------------------------------------*/ 40 /* User mode network stack restrictions */ 41 void slirp_drop_udp(); 42 void slirp_drop_tcp(); 43 void slirp_add_allow(unsigned long dst_addr, int dst_lport, 44 int dst_hport, u_int8_t proto); 45 void slirp_drop_log_fd(FILE* fd); 46 47 /** Get the drop log fd */ 48 FILE* get_slirp_drop_log_fd(void); 49 int slirp_should_drop(unsigned long dst_addr, 50 int dst_port, 51 u_int8_t proto); 52 int slirp_drop_log(const char* format, ...); 53 54 /* for network forwards */ 55 void slirp_add_net_forward(unsigned long dest_ip, unsigned long dest_mask, 56 int dest_lport, int dest_hport, 57 unsigned long redirect_ip, int redirect_port); 58 59 int slirp_should_net_forward(unsigned long remote_ip, int remote_port, 60 unsigned long *redirect_ip, int *redirect_port); 61 /* ---------------------------------------------------*/ 62 63 /** 64 * Additional network stack modifications, aiming to detect and log 65 * any network activity initiated by any binary outisde the context of 66 * the running browser. 67 */ 68 69 void slirp_dns_log_fd(FILE* fd); 70 /** Get the dns log fd */ 71 FILE* get_slirp_dns_log_fd(void); 72 /** Logs the DNS name in DNS query issued by the VM. */ 73 int slirp_log_dns(struct mbuf* m, int dropped); 74 /** IP packet dump of DNS queris and responses. */ 75 int slirp_dump_dns(struct mbuf* m); 76 /** Sets an upper limit for the number of allowed DNS requests from 77 * the VM. 78 */ 79 void slirp_set_max_dns_conns(int max_dns_conns); 80 /* Returns the max number of allowed DNS requests.*/ 81 int slirp_get_max_dns_conns(); 82 83 /** 84 * Modifications for implementing "-net-forward-tcp2sink' option. 85 */ 86 87 void slirp_forward_dropped_tcp2sink(unsigned long sink_ip, int sink_port); 88 int slirp_should_forward_dropped_tcp2sink(); 89 unsigned long slirp_get_tcp_sink_ip(); 90 int slirp_get_tcp_sink_port(); 91 92 93 94 95 /* ---------------------------------------------------*/ 96 97 void slirp_redir_loop(void (*func)(void *opaque, int is_udp, 98 const SockAddress *laddr, 99 const SockAddress *faddr), 100 void *opaque); 101 int slirp_redir_rm(int is_udp, int host_port); 102 int slirp_redir(int is_udp, int host_port, 103 uint32_t guest_addr, int guest_port); 104 105 int slirp_unredir(int is_udp, int host_port); 106 107 int slirp_add_dns_server(const SockAddress* dns_addr); 108 int slirp_get_system_dns_servers(void); 109 int slirp_add_exec(int do_pty, const void *args, int addr_low_byte, 110 int guest_port); 111 112 extern const char *tftp_prefix; 113 extern char slirp_hostname[33]; 114 extern const char *bootp_filename; 115 116 void slirp_stats(void); 117 void slirp_socket_recv(int addr_low_byte, int guest_port, const uint8_t *buf, 118 int size); 119 size_t slirp_socket_can_recv(int addr_low_byte, int guest_port); 120 121 #ifdef __cplusplus 122 } 123 #endif 124 125 #endif 126