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contrib/dhcpcd/src/ipv4ll.h
- This file was added.
| /* SPDX-License-Identifier: BSD-2-Clause */ | |||||
| /* | |||||
| * dhcpcd - DHCP client daemon | |||||
| * Copyright (c) 2006-2021 Roy Marples <roy@marples.name> | |||||
| * All rights reserved | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| */ | |||||
| #ifndef IPV4LL_H | |||||
| #define IPV4LL_H | |||||
| #define LINKLOCAL_ADDR 0xa9fe0000 | |||||
| #define LINKLOCAL_MASK IN_CLASSB_NET | |||||
| #define LINKLOCAL_BCAST (LINKLOCAL_ADDR | ~LINKLOCAL_MASK) | |||||
| #ifndef IN_LINKLOCAL | |||||
| # define IN_LINKLOCAL(addr) ((addr & IN_CLASSB_NET) == LINKLOCAL_ADDR) | |||||
| #endif | |||||
| #ifdef IPV4LL | |||||
| #include "arp.h" | |||||
| struct ipv4ll_state { | |||||
| struct in_addr pickedaddr; | |||||
| struct ipv4_addr *addr; | |||||
| char randomstate[128]; | |||||
| bool seeded; | |||||
| bool down; | |||||
| size_t conflicts; | |||||
| #ifndef KERNEL_RFC5227 | |||||
| struct arp_state *arp; | |||||
| #endif | |||||
| }; | |||||
| #define IPV4LL_STATE(ifp) \ | |||||
| ((struct ipv4ll_state *)(ifp)->if_data[IF_DATA_IPV4LL]) | |||||
| #define IPV4LL_CSTATE(ifp) \ | |||||
| ((const struct ipv4ll_state *)(ifp)->if_data[IF_DATA_IPV4LL]) | |||||
| #define IPV4LL_STATE_RUNNING(ifp) \ | |||||
| (IPV4LL_CSTATE((ifp)) && !IPV4LL_CSTATE((ifp))->down && \ | |||||
| (IPV4LL_CSTATE((ifp))->addr != NULL)) | |||||
| int ipv4ll_subnetroute(rb_tree_t *, struct interface *); | |||||
| int ipv4ll_defaultroute(rb_tree_t *,struct interface *); | |||||
| ssize_t ipv4ll_env(FILE *, const char *, const struct interface *); | |||||
| void ipv4ll_start(void *); | |||||
| void ipv4ll_claimed(void *); | |||||
| void ipv4ll_handle_failure(void *); | |||||
| struct ipv4_addr *ipv4ll_handleifa(int, struct ipv4_addr *, pid_t pid); | |||||
| #ifdef HAVE_ROUTE_METRIC | |||||
| int ipv4ll_recvrt(int, const struct rt *); | |||||
| #endif | |||||
| void ipv4ll_reset(struct interface *); | |||||
| void ipv4ll_drop(struct interface *); | |||||
| void ipv4ll_free(struct interface *); | |||||
| #endif | |||||
| #endif | |||||