7152e5efbb
Also removed the lib-dir merging with sysdep. Updated #include's accordingly. Fixed make doc on recent Debian together with moving generated doc into objdir. Moved Makefile.in into root dir Retired all.o and birdlib.a Linking the final binaries directly from all the .o files.
168 lines
4.4 KiB
C
168 lines
4.4 KiB
C
/*
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* BIRD -- Router Advertisement
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*
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_RADV_H_
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#define _BIRD_RADV_H_
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#include "nest/bird.h"
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#include "lib/ip.h"
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#include "lib/lists.h"
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#include "lib/socket.h"
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#include "sysdep/unix/timer.h"
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#include "lib/resource.h"
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#include "nest/protocol.h"
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#include "nest/iface.h"
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#include "nest/route.h"
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#include "nest/cli.h"
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#include "nest/locks.h"
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#include "conf/conf.h"
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#include "lib/string.h"
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#define ICMPV6_PROTO 58
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#define ICMPV6_RS 133
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#define ICMPV6_RA 134
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#define MAX_INITIAL_RTR_ADVERTISEMENTS 3
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#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16
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#define DEFAULT_MAX_RA_INT 600
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#define DEFAULT_MIN_DELAY 3
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#define DEFAULT_CURRENT_HOP_LIMIT 64
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#define DEFAULT_VALID_LIFETIME 86400
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#define DEFAULT_PREFERRED_LIFETIME 14400
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#define DEFAULT_DNS_LIFETIME_MULT 3
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struct radv_config
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{
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struct proto_config c;
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list patt_list; /* List of iface configs (struct radv_iface_config) */
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list pref_list; /* Global list of prefix configs (struct radv_prefix_config) */
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list rdnss_list; /* Global list of RDNSS configs (struct radv_rdnss_config) */
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list dnssl_list; /* Global list of DNSSL configs (struct radv_dnssl_config) */
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net_addr trigger; /* Prefix of a trigger route, if defined */
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};
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struct radv_iface_config
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{
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struct iface_patt i;
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list pref_list; /* Local list of prefix configs (struct radv_prefix_config) */
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list rdnss_list; /* Local list of RDNSS configs (struct radv_rdnss_config) */
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list dnssl_list; /* Local list of DNSSL configs (struct radv_dnssl_config) */
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u32 min_ra_int; /* Standard options from RFC 4261 */
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u32 max_ra_int;
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u32 min_delay;
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u8 rdnss_local; /* Global list is not used for RDNSS */
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u8 dnssl_local; /* Global list is not used for DNSSL */
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u8 managed; /* Standard options from RFC 4261 */
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u8 other_config;
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u32 link_mtu;
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u32 reachable_time;
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u32 retrans_timer;
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u32 current_hop_limit;
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u32 default_lifetime;
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u8 default_lifetime_sensitive; /* Whether default_lifetime depends on trigger */
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u8 default_preference; /* Default Router Preference (RFC 4191) */
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};
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struct radv_prefix_config
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{
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node n;
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net_addr_ip6 prefix;
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u8 skip; /* Do not include this prefix to RA */
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u8 onlink; /* Standard options from RFC 4261 */
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u8 autonomous;
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u32 valid_lifetime;
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u32 preferred_lifetime;
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u8 valid_lifetime_sensitive; /* Whether valid_lifetime depends on trigger */
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u8 preferred_lifetime_sensitive; /* Whether preferred_lifetime depends on trigger */
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};
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struct radv_rdnss_config
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{
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node n;
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u32 lifetime; /* Valid if lifetime_mult is 0 */
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u16 lifetime_mult; /* Lifetime specified as multiple of max_ra_int */
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ip6_addr server; /* IP address of recursive DNS server */
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};
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struct radv_dnssl_config
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{
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node n;
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u32 lifetime; /* Valid if lifetime_mult is 0 */
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u16 lifetime_mult; /* Lifetime specified as multiple of max_ra_int */
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u8 dlen_first; /* Length of first label in domain */
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u8 dlen_all; /* Both dlen_ filled in radv_process_domain() */
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char *domain; /* Domain for DNS search list, in processed form */
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};
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struct proto_radv
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{
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struct proto p;
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list iface_list; /* List of active ifaces */
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u8 active; /* Whether radv is active w.r.t. triggers */
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};
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struct radv_iface
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{
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node n;
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struct proto_radv *ra;
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struct radv_iface_config *cf; /* Related config, must be updated in reconfigure */
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struct iface *iface;
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struct ifa *addr; /* Link-local address of iface */
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timer *timer;
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struct object_lock *lock;
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sock *sk;
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bird_clock_t last; /* Time of last sending of RA */
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u16 plen; /* Length of prepared RA in tbuf, or 0 if not valid */
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byte initial; /* List of active ifaces */
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};
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#define RA_EV_INIT 1 /* Switch to initial mode */
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#define RA_EV_CHANGE 2 /* Change of options or prefixes */
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#define RA_EV_RS 3 /* Received RS */
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/* Default Router Preferences (RFC 4191) */
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#define RA_PREF_LOW 0x18
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#define RA_PREF_MEDIUM 0x00
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#define RA_PREF_HIGH 0x08
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#define RA_PREF_MASK 0x18
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#ifdef LOCAL_DEBUG
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#define RADV_FORCE_DEBUG 1
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#else
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#define RADV_FORCE_DEBUG 0
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#endif
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#define RADV_TRACE(flags, msg, args...) do { if ((ra->p.debug & flags) || RADV_FORCE_DEBUG) \
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log(L_TRACE "%s: " msg, ra->p.name , ## args ); } while(0)
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/* radv.c */
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void radv_iface_notify(struct radv_iface *ifa, int event);
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/* packets.c */
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int radv_process_domain(struct radv_dnssl_config *cf);
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void radv_send_ra(struct radv_iface *ifa, int shutdown);
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int radv_sk_open(struct radv_iface *ifa);
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#endif /* _BIRD_RADV_H_ */
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