/* $NetBSD: if.h,v 1.12 2015/08/21 10:39:00 roy Exp $ */ /* * dhcpcd - DHCP client daemon * Copyright (c) 2006-2015 Roy Marples * 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 INTERFACE_H #define INTERFACE_H #include #ifdef __FreeBSD__ #include #endif #include /* for RTM_ADD et all */ #include #ifdef BSD #include /* for IN_IFF_TENTATIVE et all */ #endif #if defined(__minix) /* * These flags are used for IPv4 autoconfiguration (RFC 3927). The MINIX 3 * TCP/IP service does not support IPv4 autoconfiguration, because lwIP's * AUTOIP implementation is all-or-nothing by nature: either it implements the * whole thing fully itself, or no support is present at all. dhcpcd(8) needs * a more hybrid implementation if at all. It appears that by undefining the * following flags, dhcpcd(8) will assume that no support is present for them * in the operating system, and do everything itself instead, which is exactly * what we want. */ #undef IN_IFF_TENTATIVE #undef IN_IFF_DUPLICATED #undef IN_IFF_DETACHED #undef IN_IFF_TRYTENTATIVE #undef IN_IFF_NOTREADY #endif /* defined(__minix) */ /* Some systems have route metrics. * OpenBSD route priority is not this. */ #ifndef HAVE_ROUTE_METRIC # if defined(__linux__) # define HAVE_ROUTE_METRIC 1 # endif #endif /* Some systems have in-built IPv4 DAD. * However, we need them to do DAD at carrier up as well. */ #ifdef IN_IFF_TENTATIVE # ifdef __NetBSD__ # define NOCARRIER_PRESERVE_IP # endif #endif #include "config.h" #include "dhcpcd.h" #include "ipv4.h" #include "ipv6.h" #define EUI64_ADDR_LEN 8 #define INFINIBAND_ADDR_LEN 20 /* Linux 2.4 doesn't define this */ #ifndef ARPHRD_IEEE1394 # define ARPHRD_IEEE1394 24 #endif /* The BSD's don't define this yet */ #ifndef ARPHRD_INFINIBAND # define ARPHRD_INFINIBAND 32 #endif /* Work out if we have a private address or not * 10/8 * 172.16/12 * 192.168/16 */ #ifndef IN_PRIVATE # define IN_PRIVATE(addr) (((addr & IN_CLASSA_NET) == 0x0a000000) || \ ((addr & 0xfff00000) == 0xac100000) || \ ((addr & IN_CLASSB_NET) == 0xc0a80000)) #endif #define RAW_EOF 1 << 0 #define RAW_PARTIALCSUM 2 << 0 int if_setflag(struct interface *ifp, short flag); #define if_up(ifp) if_setflag((ifp), (IFF_UP | IFF_RUNNING)) struct if_head *if_discover(struct dhcpcd_ctx *, int, char * const *); struct interface *if_find(struct if_head *, const char *); struct interface *if_findindex(struct if_head *, unsigned int); void if_sortinterfaces(struct dhcpcd_ctx *); void if_free(struct interface *); int if_domtu(const struct interface *, short int); #define if_getmtu(ifp) if_domtu((ifp), 0) #define if_setmtu(ifp, mtu) if_domtu((ifp), (mtu)) int if_carrier(struct interface *); /* The below functions are provided by if-KERNEL.c */ int if_conf(struct interface *); int if_init(struct interface *); int if_getssid(struct interface *); int if_vimaster(const struct dhcpcd_ctx *ctx, const char *); int if_opensockets(struct dhcpcd_ctx *); int if_openlinksocket(void); int if_managelink(struct dhcpcd_ctx *); /* dhcpcd uses the same routing flags as BSD. * If the platform doesn't use these flags, * map them in the platform interace file. */ #ifndef RTM_ADD #define RTM_ADD 0x1 /* Add Route */ #define RTM_DELETE 0x2 /* Delete Route */ #define RTM_CHANGE 0x3 /* Change Metrics or flags */ #define RTM_GET 0x4 /* Report Metrics */ #endif #ifdef INET extern const char *if_pfname; int if_openrawsocket(struct interface *, uint16_t); ssize_t if_sendrawpacket(const struct interface *, uint16_t, const void *, size_t); ssize_t if_readrawpacket(struct interface *, uint16_t, void *, size_t, int *); int if_address(const struct interface *, const struct in_addr *, const struct in_addr *, const struct in_addr *, int); #define if_addaddress(ifp, addr, net, brd) \ if_address(ifp, addr, net, brd, 1) #define if_deladdress(ifp, addr, net) \ if_address(ifp, addr, net, NULL, -1) int if_addrflags(const struct in_addr *, const struct interface *); int if_route(unsigned char, const struct rt *rt); int if_initrt(struct interface *); #endif #ifdef INET6 int if_checkipv6(struct dhcpcd_ctx *ctx, const struct interface *, int); #ifdef IPV6_MANAGETEMPADDR int ip6_use_tempaddr(const char *ifname); int ip6_temp_preferred_lifetime(const char *ifname); int ip6_temp_valid_lifetime(const char *ifname); #else #define ip6_use_tempaddr(a) (0) #endif int if_address6(const struct ipv6_addr *, int); #define if_addaddress6(a) if_address6(a, 1) #define if_deladdress6(a) if_address6(a, -1) int if_addrflags6(const struct in6_addr *, const struct interface *); int if_getlifetime6(struct ipv6_addr *); int if_route6(unsigned char, const struct rt6 *rt); int if_initrt6(struct interface *); #else #define if_checkipv6(a, b, c) (-1) #endif int if_machinearch(char *, size_t); int xsocket(int, int, int, int); #endif