slirp/libslirp.h

   1 #ifndef LIBSLIRP_H
   2 #define LIBSLIRP_H
   3
   4 #include "qemu-common.h"
   5
   6 typedef struct Slirp Slirp;
   7
   8 typedef int (*SlirpWriteCb)(const void *buf, size_t len, void *opaque);
   9 typedef void (*SlirpTimerCb)(void *opaque);
  10
  11 /*
  12  * Callbacks from slirp
  13  */
  14 typedef struct SlirpCb {
  15     /*
  16      * Send an ethernet frame to the guest network. The opaque parameter
  17      * is the one given to slirp_init().
  18      */
  19     void (*output)(void *opaque, const uint8_t *pkt, int pkt_len);
  20     /* Print a message for an error due to guest misbehavior.  */
  21     void (*guest_error)(const char *msg);
  22     /* Return the virtual clock value in nanoseconds */
  23     int64_t (*clock_get_ns)(void);
  24     /* Create a new timer with the given callback and opaque data */
  25     void *(*timer_new)(SlirpTimerCb cb, void *opaque);
  26     /* Remove and free a timer */
  27     void (*timer_free)(void *timer);
  28     /* Modify a timer to expire at @expire_time */
  29     void (*timer_mod)(void *timer, int64_t expire_time);
  30     /* Register a fd for future polling */
  31     void (*register_poll_fd)(int fd);
  32 } SlirpCb;
  33
  34
  35 Slirp *slirp_init(int restricted, bool in_enabled, struct in_addr vnetwork,
  36                   struct in_addr vnetmask, struct in_addr vhost,
  37                   bool in6_enabled,
  38                   struct in6_addr vprefix_addr6, uint8_t vprefix_len,
  39                   struct in6_addr vhost6, const char *vhostname,
  40                   const char *tftp_server_name,
  41                   const char *tftp_path, const char *bootfile,
  42                   struct in_addr vdhcp_start, struct in_addr vnameserver,
  43                   struct in6_addr vnameserver6, const char **vdnssearch,
  44                   const char *vdomainname,
  45                   const SlirpCb *callbacks,
  46                   void *opaque);
  47 void slirp_cleanup(Slirp *slirp);
  48
  49 void slirp_pollfds_fill(GArray *pollfds, uint32_t *timeout);
  50
  51 void slirp_pollfds_poll(GArray *pollfds, int select_error);
  52
  53 void slirp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len);
  54
  55 int slirp_add_hostfwd(Slirp *slirp, int is_udp,
  56                       struct in_addr host_addr, int host_port,
  57                       struct in_addr guest_addr, int guest_port);
  58 int slirp_remove_hostfwd(Slirp *slirp, int is_udp,
  59                          struct in_addr host_addr, int host_port);
  60 int slirp_add_exec(Slirp *slirp, const char *cmdline,
  61                    struct in_addr *guest_addr, int guest_port);
  62 int slirp_add_guestfwd(Slirp *slirp, SlirpWriteCb write_cb, void *opaque,
  63                    struct in_addr *guest_addr, int guest_port);
  64
  65 char *slirp_connection_info(Slirp *slirp);
  66
  67 void slirp_socket_recv(Slirp *slirp, struct in_addr guest_addr,
  68                        int guest_port, const uint8_t *buf, int size);
  69 size_t slirp_socket_can_recv(Slirp *slirp, struct in_addr guest_addr,
  70                              int guest_port);
  71
  72 #endif