include/qemu/sockets.h

   1 /* headers to use the BSD sockets */
   2 #ifndef QEMU_SOCKET_H
   3 #define QEMU_SOCKET_H
   4
   5 #ifdef _WIN32
   6 #include <windows.h>
   7 #include <winsock2.h>
   8 #include <ws2tcpip.h>
   9
  10 #define socket_error() WSAGetLastError()
  11
  12 int inet_aton(const char *cp, struct in_addr *ia);
  13
  14 #else
  15
  16 #include <sys/types.h>
  17 #include <sys/socket.h>
  18 #include <netinet/in.h>
  19 #include <netinet/tcp.h>
  20 #include <arpa/inet.h>
  21 #include <netdb.h>
  22 #include <sys/un.h>
  23
  24 #define socket_error() errno
  25 #define closesocket(s) close(s)
  26
  27 #endif /* !_WIN32 */
  28
  29 #include "qemu/option.h"
  30 #include "qapi/error.h"
  31 #include "qapi-types.h"
  32
  33 extern QemuOptsList socket_optslist;
  34
  35 /* misc helpers */
  36 int qemu_socket(int domain, int type, int protocol);
  37 int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
  38 int socket_set_cork(int fd, int v);
  39 int socket_set_nodelay(int fd);
  40 void qemu_set_block(int fd);
  41 void qemu_set_nonblock(int fd);
  42 int socket_set_fast_reuse(int fd);
  43 int send_all(int fd, const void *buf, int len1);
  44 int recv_all(int fd, void *buf, int len1, bool single_read);
  45
  46 #ifdef WIN32
  47 /* Windows has different names for the same constants with the same values */
  48 #define SHUT_RD   0
  49 #define SHUT_WR   1
  50 #define SHUT_RDWR 2
  51 #endif
  52
  53 /* callback function for nonblocking connect
  54  * valid fd on success, negative error code on failure
  55  */
  56 typedef void NonBlockingConnectHandler(int fd, Error *errp, void *opaque);
  57
  58 InetSocketAddress *inet_parse(const char *str, Error **errp);
  59 int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp);
  60 int inet_listen(const char *str, char *ostr, int olen,
  61                 int socktype, int port_offset, Error **errp);
  62 int inet_connect_opts(QemuOpts *opts, Error **errp,
  63                       NonBlockingConnectHandler *callback, void *opaque);
  64 int inet_connect(const char *str, Error **errp);
  65 int inet_nonblocking_connect(const char *str,
  66                              NonBlockingConnectHandler *callback,
  67                              void *opaque, Error **errp);
  68
  69 int inet_dgram_opts(QemuOpts *opts, Error **errp);
  70 NetworkAddressFamily inet_netfamily(int family);
  71
  72 int unix_listen_opts(QemuOpts *opts, Error **errp);
  73 int unix_listen(const char *path, char *ostr, int olen, Error **errp);
  74 int unix_connect_opts(QemuOpts *opts, Error **errp,
  75                       NonBlockingConnectHandler *callback, void *opaque);
  76 int unix_connect(const char *path, Error **errp);
  77 int unix_nonblocking_connect(const char *str,
  78                              NonBlockingConnectHandler *callback,
  79                              void *opaque, Error **errp);
  80
  81 SocketAddress *socket_parse(const char *str, Error **errp);
  82 int socket_connect(SocketAddress *addr, Error **errp,
  83                    NonBlockingConnectHandler *callback, void *opaque);
  84 int socket_listen(SocketAddress *addr, Error **errp);
  85 int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp);
  86
  87 /* Old, ipv4 only bits.  Don't use for new code. */
  88 int parse_host_port(struct sockaddr_in *saddr, const char *str);
  89 int socket_init(void);
  90
  91 /**
  92  * socket_local_address:
  93  * @fd: the socket file handle
  94  * @errp: pointer to uninitialized error object
  95  *
  96  * Get the string representation of the local socket
  97  * address. A pointer to the allocated address information
  98  * struct will be returned, which the caller is required to
  99  * release with a call qapi_free_SocketAddress when no
 100  * longer required.
 101  *
 102  * Returns: the socket address struct, or NULL on error
 103  */
 104 SocketAddress *socket_local_address(int fd, Error **errp);
 105
 106 /**
 107  * socket_remote_address:
 108  * @fd: the socket file handle
 109  * @errp: pointer to uninitialized error object
 110  *
 111  * Get the string representation of the remote socket
 112  * address. A pointer to the allocated address information
 113  * struct will be returned, which the caller is required to
 114  * release with a call qapi_free_SocketAddress when no
 115  * longer required.
 116  *
 117  * Returns: the socket address struct, or NULL on error
 118  */
 119 SocketAddress *socket_remote_address(int fd, Error **errp);
 120
 121
 122 void qapi_copy_SocketAddress(SocketAddress **p_dest,
 123                              SocketAddress *src);
 124
 125 #endif /* QEMU_SOCKET_H */