118 lines
4.1 KiB
C
118 lines
4.1 KiB
C
#ifndef LIBSLIRP_H
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#define LIBSLIRP_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#ifdef _WIN32
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#include <winsock2.h>
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#include <in6addr.h>
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#else
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct Slirp Slirp;
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enum {
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SLIRP_POLL_IN = 1 << 0,
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SLIRP_POLL_OUT = 1 << 1,
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SLIRP_POLL_PRI = 1 << 2,
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SLIRP_POLL_ERR = 1 << 3,
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SLIRP_POLL_HUP = 1 << 4,
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};
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typedef ssize_t (*SlirpReadCb)(void *buf, size_t len, void *opaque);
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typedef ssize_t (*SlirpWriteCb)(const void *buf, size_t len, void *opaque);
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typedef void (*SlirpTimerCb)(void *opaque);
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typedef int (*SlirpAddPollCb)(int fd, int events, void *opaque);
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typedef int (*SlirpGetREventsCb)(int idx, void *opaque);
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/*
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* Callbacks from slirp
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*/
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typedef struct SlirpCb {
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/*
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* Send an ethernet frame to the guest network. The opaque
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* parameter is the one given to slirp_init(). The function
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* doesn't need to send all the data and may return <len (no
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* buffering is done on libslirp side, so the data will be dropped
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* in this case). <0 reports an IO error.
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*/
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SlirpWriteCb send_packet;
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/* Print a message for an error due to guest misbehavior. */
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void (*guest_error)(const char *msg, void *opaque);
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/* Return the virtual clock value in nanoseconds */
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int64_t (*clock_get_ns)(void *opaque);
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/* Create a new timer with the given callback and opaque data */
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void *(*timer_new)(SlirpTimerCb cb, void *cb_opaque, void *opaque);
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/* Remove and free a timer */
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void (*timer_free)(void *timer, void *opaque);
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/* Modify a timer to expire at @expire_time */
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void (*timer_mod)(void *timer, int64_t expire_time, void *opaque);
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/* Register a fd for future polling */
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void (*register_poll_fd)(int fd, void *opaque);
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/* Unregister a fd */
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void (*unregister_poll_fd)(int fd, void *opaque);
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/* Kick the io-thread, to signal that new events may be processed */
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void (*notify)(void *opaque);
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} SlirpCb;
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Slirp *slirp_init(int restricted, bool in_enabled, struct in_addr vnetwork,
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struct in_addr vnetmask, struct in_addr vhost,
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bool in6_enabled,
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struct in6_addr vprefix_addr6, uint8_t vprefix_len,
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struct in6_addr vhost6, const char *vhostname,
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const char *tftp_server_name,
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const char *tftp_path, const char *bootfile,
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struct in_addr vdhcp_start, struct in_addr vnameserver,
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struct in6_addr vnameserver6, const char **vdnssearch,
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const char *vdomainname,
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const SlirpCb *callbacks,
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void *opaque);
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void slirp_cleanup(Slirp *slirp);
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void slirp_pollfds_fill(Slirp *slirp, uint32_t *timeout,
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SlirpAddPollCb add_poll, void *opaque);
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void slirp_pollfds_poll(Slirp *slirp, int select_error,
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SlirpGetREventsCb get_revents, void *opaque);
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void slirp_input(Slirp *slirp, const uint8_t *pkt, int pkt_len);
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int slirp_add_hostfwd(Slirp *slirp, int is_udp,
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struct in_addr host_addr, int host_port,
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struct in_addr guest_addr, int guest_port);
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int slirp_remove_hostfwd(Slirp *slirp, int is_udp,
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struct in_addr host_addr, int host_port);
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int slirp_add_exec(Slirp *slirp, const char *cmdline,
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struct in_addr *guest_addr, int guest_port);
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int slirp_add_guestfwd(Slirp *slirp, SlirpWriteCb write_cb, void *opaque,
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struct in_addr *guest_addr, int guest_port);
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char *slirp_connection_info(Slirp *slirp);
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void slirp_socket_recv(Slirp *slirp, struct in_addr guest_addr,
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int guest_port, const uint8_t *buf, int size);
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size_t slirp_socket_can_recv(Slirp *slirp, struct in_addr guest_addr,
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int guest_port);
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void slirp_state_save(Slirp *s, SlirpWriteCb write_cb, void *opaque);
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int slirp_state_load(Slirp *s, int version_id,
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SlirpReadCb read_cb, void *opaque);
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int slirp_state_version(void);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* LIBSLIRP_H */
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