diff options
Diffstat (limited to 'proto/radv/radv.h')
-rw-r--r-- | proto/radv/radv.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/proto/radv/radv.h b/proto/radv/radv.h new file mode 100644 index 00000000..fe121f26 --- /dev/null +++ b/proto/radv/radv.h @@ -0,0 +1,131 @@ +/* + * BIRD -- Router Advertisement + * + * + * Can be freely distributed and used under the terms of the GNU GPL. + */ + +#ifndef _BIRD_RADV_H_ +#define _BIRD_RADV_H_ + +#include "nest/bird.h" + +#include "lib/ip.h" +#include "lib/lists.h" +#include "lib/socket.h" +#include "lib/timer.h" +#include "lib/resource.h" +#include "nest/protocol.h" +#include "nest/iface.h" +#include "nest/route.h" +#include "nest/cli.h" +#include "nest/locks.h" +#include "conf/conf.h" +#include "lib/string.h" + + +#define ICMPV6_PROTO 58 + +#define AllNodes _MI(0xFF020000, 0, 0, 1) /* FF02::1 */ +#define AllRouters _MI(0xFF020000, 0, 0, 2) /* FF02::2 */ + +#define ICMPV6_RS 133 +#define ICMPV6_RA 134 + +#define MAX_INITIAL_RTR_ADVERTISEMENTS 3 +#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 + +#define DEFAULT_MAX_RA_INT 600 +#define DEFAULT_MIN_DELAY 3 +#define DEFAULT_CURRENT_HOP_LIMIT 64 + +#define DEFAULT_VALID_LIFETIME 86400 +#define DEFAULT_PREFERRED_LIFETIME 14400 + + +struct radv_config +{ + struct proto_config c; + list patt_list; /* List of iface configs */ + list pref_list; /* Global list of prefix configs */ +}; + +struct radv_iface_config +{ + struct iface_patt i; + list pref_list; /* Local list of prefix configs */ + + u32 min_ra_int; /* Standard options from RFC 4261 */ + u32 max_ra_int; + u32 min_delay; + + u8 managed; + u8 other_config; + u32 link_mtu; + u32 reachable_time; + u32 retrans_timer; + u32 current_hop_limit; + u32 default_lifetime; +}; + +struct radv_prefix_config +{ + node n; + ip_addr prefix; + int pxlen; + + u8 skip; /* Do not include this prefix to RA */ + u8 onlink; /* Standard options from RFC 4261 */ + u8 autonomous; + u32 valid_lifetime; + u32 preferred_lifetime; +}; + +struct proto_radv +{ + struct proto p; + list iface_list; /* List of active ifaces */ +}; + +struct radv_iface +{ + node n; + struct proto_radv *ra; + struct radv_iface_config *cf; /* Related config, must be updated in reconfigure */ + struct iface *iface; + struct ifa *addr; /* Link-local address of iface */ + + timer *timer; + struct object_lock *lock; + sock *sk; + + bird_clock_t last; /* Time of last sending of RA */ + u16 plen; /* Length of prepared RA in tbuf, or 0 if not valid */ + byte initial; /* List of active ifaces */ +}; + +#define RA_EV_INIT 1 /* Switch to initial mode */ +#define RA_EV_CHANGE 2 /* Change of options or prefixes */ +#define RA_EV_RS 3 /* Received RS */ + + + +#ifdef LOCAL_DEBUG +#define RADV_FORCE_DEBUG 1 +#else +#define RADV_FORCE_DEBUG 0 +#endif +#define RADV_TRACE(flags, msg, args...) do { if ((ra->p.debug & flags) || RADV_FORCE_DEBUG) \ + log(L_TRACE "%s: " msg, ra->p.name , ## args ); } while(0) + + +/* radv.c */ +void radv_iface_notify(struct radv_iface *ifa, int event); + +/* packets.c */ +void radv_send_ra(struct radv_iface *ifa, int shutdown); +int radv_sk_open(struct radv_iface *ifa); + + + +#endif /* _BIRD_RADV_H_ */ |