/* * Copyright (c) 2015-2019 Contributors as noted in the AUTHORS file * * This file is part of Solo5, a sandboxed execution environment. * * Permission to use, copy, modify, and/or distribute this software * for any purpose with or without fee is hereby granted, provided * that the above copyright notice and this permission notice appear * in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * tap_attach.h: Common functions for attaching to TAP interfaces. */ #ifndef COMMON_TAP_ATTACH_H #define COMMON_TAP_ATTACH_H /* * Attach to an existing TAP interface named (ifname). If ifname is "@", * assume that a pre-existing TAP interface is open as file descriptor . * * Returns -1 and an appropriate errno on failure (ENOENT if the interface does * not exist), and the tap device file descriptor on success. */ int tap_attach(const char *ifname); /* * Generate a random, locally-administered and unicast MAC address, and store it * in (*mac), which must be an uint8_t[6]. */ void tap_attach_genmac(uint8_t *mac); #endif /* COMMON_TAP_ATTACH_H */