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Diffstat (limited to 'dhcpcd/ipv6nd.h')
| -rw-r--r-- | dhcpcd/ipv6nd.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/dhcpcd/ipv6nd.h b/dhcpcd/ipv6nd.h new file mode 100644 index 00000000..f7ec4a58 --- /dev/null +++ b/dhcpcd/ipv6nd.h @@ -0,0 +1,115 @@ +/* + * dhcpcd - DHCP client daemon + * Copyright (c) 2006-2013 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 IPV6ND_H +#define IPV6ND_H + +#include <sys/queue.h> + +#include <time.h> + +#include "dhcpcd.h" +#include "ipv6.h" + +struct ra_opt { + TAILQ_ENTRY(ra_opt) next; + uint8_t type; + struct timeval expire; + char *option; +}; + +struct ra { + TAILQ_ENTRY(ra) next; + struct interface *iface; + struct in6_addr from; + char sfrom[INET6_ADDRSTRLEN]; + unsigned char *data; + ssize_t data_len; + struct timeval received; + unsigned char flags; + uint32_t lifetime; + uint32_t reachable; + uint32_t retrans; + uint32_t mtu; + struct ipv6_addrhead addrs; + TAILQ_HEAD(, ra_opt) options; + + unsigned char *ns; + size_t nslen; + int nsprobes; + + int expired; +}; + +extern TAILQ_HEAD(rahead, ra) ipv6_routers; + +struct rs_state { + unsigned char *rs; + size_t rslen; + int rsprobes; +}; + +#define RS_STATE(a) ((struct rs_state *)(ifp)->if_data[IF_DATA_IPV6ND]) + +#define MAX_REACHABLE_TIME 3600 /* seconds */ +#define REACHABLE_TIME 30 /* seconds */ +#define RETRANS_TIMER 1000 /* milliseconds */ +#define DELAY_FIRST_PROBE_TIME 5 /* seconds */ + +#ifdef INET6 +int ipv6nd_startrs(struct interface *); +ssize_t ipv6nd_env(char **, const char *, const struct interface *); +int ipv6nd_addrexists(const struct ipv6_addr *); +void ipv6nd_freedrop_ra(struct ra *, int); +#define ipv6nd_free_ra(ra) ipv6nd_freedrop_ra((ra), 0) +#define ipv6nd_drop_ra(ra) ipv6nd_freedrop_ra((ra), 1) +ssize_t ipv6nd_free(struct interface *); +void ipv6nd_expirera(void *arg); +int ipv6nd_has_ra(const struct interface *); +void ipv6nd_handleifa(int, const char *, const struct in6_addr *, int); +void ipv6nd_drop(struct interface *); + +void ipv6nd_probeaddr(void *); +ssize_t ipv6nd_probeaddrs(struct ipv6_addrhead *); +void ipv6nd_proberouter(void *); +void ipv6nd_cancelproberouter(struct ra *); + +#ifdef LISTEN_DAD +void ipv6nd_cancelprobeaddr(struct ipv6_addr *); +#else +#define ipv6nd_cancelprobeaddr(a) +#endif + +#else +#define ipv6nd_startrs(a) {} +#define ipv6nd_addrexists(a) (0) +#define ipv6nd_free(a) +#define ipv6nd_has_ra(a) 0 +#define ipv6nd_drop(a) +#endif + +#endif |