Samuel Tan | d7ed851 | 2015-08-13 16:11:35 -0700 | [diff] [blame] | 1 | /* |
| 2 | * dhcpcd - DHCP client daemon |
| 3 | * Copyright (c) 2006-2015 Roy Marples <roy@marples.name> |
| 4 | * All rights reserved |
| 5 | |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 25 | * SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #ifndef IPV4_H |
| 29 | #define IPV4_H |
| 30 | |
| 31 | #include "dhcpcd.h" |
| 32 | |
| 33 | #ifdef IN_IFF_TENTATIVE |
| 34 | #define IN_IFF_NOTUSEABLE \ |
| 35 | (IN_IFF_TENTATIVE | IN_IFF_DUPLICATED | IN_IFF_DETACHED) |
| 36 | #endif |
| 37 | |
| 38 | struct rt { |
| 39 | TAILQ_ENTRY(rt) next; |
| 40 | struct in_addr dest; |
| 41 | struct in_addr net; |
| 42 | struct in_addr gate; |
| 43 | const struct interface *iface; |
| 44 | #ifdef HAVE_ROUTE_METRIC |
| 45 | unsigned int metric; |
| 46 | #endif |
| 47 | struct in_addr src; |
| 48 | unsigned int flags; |
| 49 | }; |
| 50 | TAILQ_HEAD(rt_head, rt); |
| 51 | |
| 52 | struct ipv4_addr { |
| 53 | TAILQ_ENTRY(ipv4_addr) next; |
| 54 | struct in_addr addr; |
| 55 | struct in_addr net; |
| 56 | struct in_addr dst; |
| 57 | struct interface *iface; |
| 58 | int addr_flags; |
| 59 | }; |
| 60 | TAILQ_HEAD(ipv4_addrhead, ipv4_addr); |
| 61 | |
| 62 | struct ipv4_state { |
| 63 | struct ipv4_addrhead addrs; |
| 64 | struct rt_head routes; |
| 65 | }; |
| 66 | |
| 67 | #define IPV4_STATE(ifp) \ |
| 68 | ((struct ipv4_state *)(ifp)->if_data[IF_DATA_IPV4]) |
| 69 | #define IPV4_CSTATE(ifp) \ |
| 70 | ((const struct ipv4_state *)(ifp)->if_data[IF_DATA_IPV4]) |
| 71 | |
| 72 | #ifdef INET |
| 73 | int ipv4_init(struct dhcpcd_ctx *); |
| 74 | int ipv4_ifcmp(const struct interface *, const struct interface *); |
| 75 | uint8_t inet_ntocidr(struct in_addr); |
| 76 | int inet_cidrtoaddr(int, struct in_addr *); |
| 77 | uint32_t ipv4_getnetmask(uint32_t); |
| 78 | int ipv4_addrexists(struct dhcpcd_ctx *, const struct in_addr *); |
| 79 | |
| 80 | #define STATE_ADDED 0x01 |
| 81 | #define STATE_FAKE 0x02 |
| 82 | |
| 83 | void ipv4_buildroutes(struct dhcpcd_ctx *); |
| 84 | void ipv4_finaliseaddr(struct interface *); |
| 85 | int ipv4_deladdr(struct interface *ifp, const struct in_addr *, |
| 86 | const struct in_addr *); |
| 87 | void ipv4_applyaddr(void *); |
| 88 | int ipv4_handlert(struct dhcpcd_ctx *, int, struct rt *); |
| 89 | void ipv4_freerts(struct rt_head *); |
| 90 | |
| 91 | struct ipv4_addr *ipv4_iffindaddr(struct interface *, |
| 92 | const struct in_addr *, const struct in_addr *); |
| 93 | struct ipv4_addr *ipv4_iffindlladdr(struct interface *); |
| 94 | struct ipv4_addr *ipv4_findaddr(struct dhcpcd_ctx *, const struct in_addr *); |
| 95 | void ipv4_handleifa(struct dhcpcd_ctx *, int, struct if_head *, const char *, |
| 96 | const struct in_addr *, const struct in_addr *, const struct in_addr *, |
| 97 | int); |
| 98 | |
| 99 | void ipv4_freeroutes(struct rt_head *); |
| 100 | |
| 101 | void ipv4_free(struct interface *); |
| 102 | void ipv4_ctxfree(struct dhcpcd_ctx *); |
| 103 | #else |
| 104 | #define ipv4_init(a) (-1) |
| 105 | #define ipv4_sortinterfaces(a) {} |
| 106 | #define ipv4_applyaddr(a) {} |
| 107 | #define ipv4_freeroutes(a) {} |
| 108 | #define ipv4_free(a) {} |
| 109 | #define ipv4_ctxfree(a) {} |
| 110 | #define ipv4_addrexists(a, b) (0) |
| 111 | #endif |
| 112 | |
| 113 | #endif |