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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright Red Hat
* Author: David Gibson <david@gibson.dropbear.id.au>
*
* Passt/pasta interface types and IDs
*/
#ifndef PIF_H
#define PIF_H
union inany_addr;
union sockaddr_inany;
/**
* enum pif_type - Type of passt/pasta interface ("pif")
*
* pifs can be an L4 level channel (sockets) or an L2 level channel (tap device
* or qemu socket).
*/
enum pif_type {
/* Invalid or not present pif */
PIF_NONE = 0,
/* Host socket interface */
PIF_HOST,
/* Qemu socket or namespace tuntap interface */
PIF_TAP,
/* Namespace socket interface for splicing */
PIF_SPLICE,
PIF_NUM_TYPES,
};
#define PIF_NAMELEN 8
extern const char *pif_type_str[];
static inline const char *pif_type(enum pif_type pt)
{
if (pt < PIF_NUM_TYPES)
return pif_type_str[pt];
else
return "?";
}
static inline const char *pif_name(uint8_t pif)
{
return pif_type(pif);
}
/**
* pif_is_socket() - Is interface implemented via L4 sockets?
* @pif: pif to check
*
* Return: true of @pif is an L4 socket based interface, otherwise false
*/
static inline bool pif_is_socket(uint8_t pif)
{
return pif == PIF_HOST || pif == PIF_SPLICE;
}
void pif_sockaddr(const struct ctx *c, union sockaddr_inany *sa, socklen_t *sl,
uint8_t pif, const union inany_addr *addr, in_port_t port);
int pif_sock_l4(const struct ctx *c, enum epoll_type type, uint8_t pif,
const union inany_addr *addr, const char *ifname,
in_port_t port, uint32_t data);
#endif /* PIF_H */
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