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* dhcpcd - DHCP client daemon
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* Copyright (c) 2006-2015 Roy Marples <roy@marples.name>
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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#include <net/if_var.h>
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#include <net/route.h> /* for RTM_ADD et all */
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#include <netinet/in.h>
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#include <netinet/in_var.h> /* for IN_IFF_TENTATIVE et all */
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/* Some systems have route metrics.
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* OpenBSD route priority is not this. */
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#ifndef HAVE_ROUTE_METRIC
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# if defined(__linux__)
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# define HAVE_ROUTE_METRIC 1
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/* Some systems have in-built IPv4 DAD.
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* However, we need them to do DAD at carrier up as well. */
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#ifdef IN_IFF_TENTATIVE
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# define NOCARRIER_PRESERVE_IP
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#define EUI64_ADDR_LEN 8
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#define INFINIBAND_ADDR_LEN 20
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/* Linux 2.4 doesn't define this */
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#ifndef ARPHRD_IEEE1394
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# define ARPHRD_IEEE1394 24
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/* The BSD's don't define this yet */
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#ifndef ARPHRD_INFINIBAND
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# define ARPHRD_INFINIBAND 32
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/* Work out if we have a private address or not
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# define IN_PRIVATE(addr) (((addr & IN_CLASSA_NET) == 0x0a000000) || \
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((addr & 0xfff00000) == 0xac100000) || \
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((addr & IN_CLASSB_NET) == 0xc0a80000))
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#define LINKLOCAL_ADDR 0xa9fe0000
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#define LINKLOCAL_MASK IN_CLASSB_NET
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#define LINKLOCAL_BRDC (LINKLOCAL_ADDR | ~LINKLOCAL_MASK)
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# define IN_LINKLOCAL(addr) ((addr & IN_CLASSB_NET) == LINKLOCAL_ADDR)
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#define RAW_EOF 1 << 0
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#define RAW_PARTIALCSUM 2 << 0
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int if_setflag(struct interface *ifp, short flag);
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#define if_up(ifp) if_setflag((ifp), (IFF_UP | IFF_RUNNING))
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struct if_head *if_discover(struct dhcpcd_ctx *, int, char * const *);
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struct interface *if_find(struct if_head *, const char *);
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struct interface *if_findindex(struct if_head *, unsigned int);
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void if_sortinterfaces(struct dhcpcd_ctx *);
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void if_free(struct interface *);
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int if_domtu(const char *, short int);
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#define if_getmtu(iface) if_domtu(iface, 0)
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#define if_setmtu(iface, mtu) if_domtu(iface, mtu)
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int if_carrier(struct interface *);
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/* The below functions are provided by if-KERNEL.c */
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int if_conf(struct interface *);
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int if_init(struct interface *);
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int if_getssid(struct interface *);
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int if_vimaster(const char *);
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int if_openlinksocket(void);
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int if_managelink(struct dhcpcd_ctx *);
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/* dhcpcd uses the same routing flags as BSD.
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* If the platform doesn't use these flags,
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* map them in the platform interace file. */
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#define RTM_ADD 0x1 /* Add Route */
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#define RTM_DELETE 0x2 /* Delete Route */
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#define RTM_CHANGE 0x3 /* Change Metrics or flags */
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#define RTM_GET 0x4 /* Report Metrics */
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extern const char *if_pfname;
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int if_openrawsocket(struct interface *, uint16_t);
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ssize_t if_sendrawpacket(const struct interface *,
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uint16_t, const void *, size_t);
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ssize_t if_readrawpacket(struct interface *, uint16_t, void *, size_t, int *);
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int if_address(const struct interface *,
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const struct in_addr *, const struct in_addr *,
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const struct in_addr *, int);
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#define if_addaddress(ifp, addr, net, brd) \
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if_address(ifp, addr, net, brd, 1)
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#define if_deladdress(ifp, addr, net) \
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if_address(ifp, addr, net, NULL, -1)
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int if_addrflags(const struct in_addr *, const struct interface *);
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int if_route(unsigned char, const struct rt *rt);
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int if_initrt(struct interface *);
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int if_checkipv6(struct dhcpcd_ctx *ctx, const struct interface *, int);
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#ifdef IPV6_MANAGETEMPADDR
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int ip6_use_tempaddr(const char *ifname);
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int ip6_temp_preferred_lifetime(const char *ifname);
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int ip6_temp_valid_lifetime(const char *ifname);
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#define ip6_use_tempaddr(a) (0)
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int if_address6(const struct ipv6_addr *, int);
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#define if_addaddress6(a) if_address6(a, 1)
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#define if_deladdress6(a) if_address6(a, -1)
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int if_addrflags6(const struct in6_addr *, const struct interface *);
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int if_getlifetime6(struct ipv6_addr *);
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int if_route6(unsigned char, const struct rt6 *rt);
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int if_initrt6(struct interface *);
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#define if_checkipv6(a, b, c) (-1)
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int if_machinearch(char *, size_t);
added
removed
if.h
