xemu/include/qemu/sockets.h
Vladimir Sementsov-Ogievskiy c542370418 qemu-sockets: introduce socket_address_parse_named_fd()
Add function that transforms named fd inside SocketAddress structure
into number representation. This way it may be then used in a context
where current monitor is not available.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210610100802.5888-6-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: comment tweak]
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-06-18 10:59:53 -05:00

126 lines
3.8 KiB
C

/* headers to use the BSD sockets */
#ifndef QEMU_SOCKETS_H
#define QEMU_SOCKETS_H
#ifdef _WIN32
int inet_aton(const char *cp, struct in_addr *ia);
#endif /* !_WIN32 */
#include "qapi/qapi-types-sockets.h"
/* misc helpers */
bool fd_is_socket(int fd);
int qemu_socket(int domain, int type, int protocol);
int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
int socket_set_cork(int fd, int v);
int socket_set_nodelay(int fd);
void qemu_set_block(int fd);
int qemu_try_set_nonblock(int fd);
void qemu_set_nonblock(int fd);
int socket_set_fast_reuse(int fd);
#ifdef WIN32
/* Windows has different names for the same constants with the same values */
#define SHUT_RD 0
#define SHUT_WR 1
#define SHUT_RDWR 2
#endif
int inet_ai_family_from_address(InetSocketAddress *addr,
Error **errp);
int inet_parse(InetSocketAddress *addr, const char *str, Error **errp);
int inet_connect(const char *str, Error **errp);
int inet_connect_saddr(InetSocketAddress *saddr, Error **errp);
NetworkAddressFamily inet_netfamily(int family);
int unix_listen(const char *path, Error **errp);
int unix_connect(const char *path, Error **errp);
SocketAddress *socket_parse(const char *str, Error **errp);
int socket_connect(SocketAddress *addr, Error **errp);
int socket_listen(SocketAddress *addr, int num, Error **errp);
void socket_listen_cleanup(int fd, Error **errp);
int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp);
/* Old, ipv4 only bits. Don't use for new code. */
int parse_host_port(struct sockaddr_in *saddr, const char *str,
Error **errp);
int socket_init(void);
/**
* socket_sockaddr_to_address:
* @sa: socket address struct
* @salen: size of @sa struct
* @errp: pointer to uninitialized error object
*
* Get the string representation of the socket
* address. A pointer to the allocated address information
* struct will be returned, which the caller is required to
* release with a call qapi_free_SocketAddress() when no
* longer required.
*
* Returns: the socket address struct, or NULL on error
*/
SocketAddress *
socket_sockaddr_to_address(struct sockaddr_storage *sa,
socklen_t salen,
Error **errp);
/**
* socket_local_address:
* @fd: the socket file handle
* @errp: pointer to uninitialized error object
*
* Get the string representation of the local socket
* address. A pointer to the allocated address information
* struct will be returned, which the caller is required to
* release with a call qapi_free_SocketAddress() when no
* longer required.
*
* Returns: the socket address struct, or NULL on error
*/
SocketAddress *socket_local_address(int fd, Error **errp);
/**
* socket_remote_address:
* @fd: the socket file handle
* @errp: pointer to uninitialized error object
*
* Get the string representation of the remote socket
* address. A pointer to the allocated address information
* struct will be returned, which the caller is required to
* release with a call qapi_free_SocketAddress() when no
* longer required.
*
* Returns: the socket address struct, or NULL on error
*/
SocketAddress *socket_remote_address(int fd, Error **errp);
/**
* socket_address_flatten:
* @addr: the socket address to flatten
*
* Convert SocketAddressLegacy to SocketAddress. Caller is responsible
* for freeing with qapi_free_SocketAddress().
*
* Returns: the argument converted to SocketAddress.
*/
SocketAddress *socket_address_flatten(SocketAddressLegacy *addr);
/**
* socket_address_parse_named_fd:
*
* Modify @addr, replacing a named fd by its corresponding number.
* Needed for callers that plan to pass @addr to a context where the
* current monitor is not available.
*
* Return 0 on success.
*/
int socket_address_parse_named_fd(SocketAddress *addr, Error **errp);
#endif /* QEMU_SOCKETS_H */