mirror of
https://git.rtems.org/rtems-libbsd/
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f2ed769880
Import DHCPCD(8) from: http://roy.marples.name/projects/dhcpcd/ The upstream sources can be obtained via: fossil clone http://roy.marples.name/projects/dhcpcd The imported version is 2014-01-29 19:46:44 [6b209507bb].
116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* dhcpcd - DHCP client daemon
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* Copyright (c) 2006-2013 Roy Marples <roy@marples.name>
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* All rights reserved
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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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* are met:
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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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*
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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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* SUCH DAMAGE.
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*/
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#ifndef IPV6ND_H
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#define IPV6ND_H
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#include <sys/queue.h>
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#include <time.h>
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#include "dhcpcd.h"
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#include "ipv6.h"
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struct ra_opt {
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TAILQ_ENTRY(ra_opt) next;
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uint8_t type;
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struct timeval expire;
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char *option;
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};
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struct ra {
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TAILQ_ENTRY(ra) next;
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struct interface *iface;
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struct in6_addr from;
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char sfrom[INET6_ADDRSTRLEN];
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unsigned char *data;
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ssize_t data_len;
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struct timeval received;
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unsigned char flags;
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uint32_t lifetime;
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uint32_t reachable;
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uint32_t retrans;
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uint32_t mtu;
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struct ipv6_addrhead addrs;
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TAILQ_HEAD(, ra_opt) options;
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unsigned char *ns;
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size_t nslen;
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int nsprobes;
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int expired;
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};
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extern TAILQ_HEAD(rahead, ra) ipv6_routers;
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struct rs_state {
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unsigned char *rs;
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size_t rslen;
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int rsprobes;
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};
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#define RS_STATE(a) ((struct rs_state *)(ifp)->if_data[IF_DATA_IPV6ND])
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#define MAX_REACHABLE_TIME 3600 /* seconds */
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#define REACHABLE_TIME 30 /* seconds */
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#define RETRANS_TIMER 1000 /* milliseconds */
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#define DELAY_FIRST_PROBE_TIME 5 /* seconds */
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#ifdef INET6
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int ipv6nd_startrs(struct interface *);
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ssize_t ipv6nd_env(char **, const char *, const struct interface *);
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int ipv6nd_addrexists(const struct ipv6_addr *);
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void ipv6nd_freedrop_ra(struct ra *, int);
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#define ipv6nd_free_ra(ra) ipv6nd_freedrop_ra((ra), 0)
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#define ipv6nd_drop_ra(ra) ipv6nd_freedrop_ra((ra), 1)
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ssize_t ipv6nd_free(struct interface *);
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void ipv6nd_expirera(void *arg);
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int ipv6nd_has_ra(const struct interface *);
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void ipv6nd_handleifa(int, const char *, const struct in6_addr *, int);
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void ipv6nd_drop(struct interface *);
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void ipv6nd_probeaddr(void *);
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ssize_t ipv6nd_probeaddrs(struct ipv6_addrhead *);
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void ipv6nd_proberouter(void *);
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void ipv6nd_cancelproberouter(struct ra *);
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#ifdef LISTEN_DAD
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void ipv6nd_cancelprobeaddr(struct ipv6_addr *);
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#else
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#define ipv6nd_cancelprobeaddr(a)
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#endif
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#else
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#define ipv6nd_startrs(a) {}
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#define ipv6nd_addrexists(a) (0)
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#define ipv6nd_free(a)
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#define ipv6nd_has_ra(a) 0
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#define ipv6nd_drop(a)
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#endif
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#endif
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