passt/pif.h
David Gibson cf83988e96 pif: Add helpers to get the name of a pif
Future debugging will want to identify a specific passt interface.  We make
a distinction in these helpers between the name of the *type* of pif, and
name of the pif itself.  For the time being these are always the same
thing, since we have at most instance of each type of pif.  However, that
might change in future.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2023-12-04 09:51:29 +01:00

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C

/* 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
/**
* 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);
}
#endif /* PIF_H */