diff options
Diffstat (limited to 'sys/netinet6/ipv6_addrconf.c')
| -rw-r--r-- | sys/netinet6/ipv6_addrconf.c | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/sys/netinet6/ipv6_addrconf.c b/sys/netinet6/ipv6_addrconf.c deleted file mode 100644 index 19b868d5af3..00000000000 --- a/sys/netinet6/ipv6_addrconf.c +++ /dev/null @@ -1,248 +0,0 @@ -/* -%%% copyright-nrl-95 -This software is Copyright 1995-1998 by Randall Atkinson, Ronald Lee, -Daniel McDonald, Bao Phan, and Chris Winters. All Rights Reserved. All -rights under this copyright have been assigned to the US Naval Research -Laboratory (NRL). The NRL Copyright Notice and License Agreement Version -1.1 (January 17, 1995) applies to this software. -You should have received a copy of the license with this software. If you -didn't get a copy, you may request one from <license@ipv6.nrl.navy.mil>. - -*/ - -#include <sys/param.h> -#include <sys/systm.h> -/*#include <sys/ioctl.h> */ -#include <sys/errno.h> -#include <sys/malloc.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/time.h> -#include <sys/kernel.h> -#include <sys/mbuf.h> - -#include <net/if.h> -#include <net/if_types.h> -#include <net/if_dl.h> -#include <net/route.h> - -#include <netinet/in.h> - -#include <netinet6/in6.h> -#include <netinet6/in6_var.h> -#include <netinet6/ipv6.h> -#include <netinet6/ipv6_var.h> -#include <netinet6/ipv6_icmp.h> -#include <netinet6/ipv6_addrconf.h> - -#ifdef DEBUG_NRL -#include <sys/debug.h> -#else /* DEBUG_NRL */ -#if __OpenBSD__ -#include <netinet6/debug.h> -#else /* __OpenBSD__ */ -#include <sys/debug.h> -#endif /* __OpenBSD__ */ -#endif /* DEBUG_NRL */ - -/* - * External Globals - */ - -extern struct in6_ifaddr *in6_ifaddr; -extern u_long v6d_retranstime; -extern int ipv6rsolicit; - -void send_nsolicit __P((struct rtentry *, struct ifnet *, struct in6_addr *, int)); -struct mbuf *get_discov_cluster __P((void)); - -static void send_rsolicit __P((struct ifnet *)); - -/*---------------------------------------------------------------------- - * Initialize addrconf. - ----------------------------------------------------------------------*/ - -void -addrconf_init() -{ - timeout(addrconf_timer,NULL,v6d_retranstime * hz); -} - -/*---------------------------------------------------------------------- - * Send a router solicitation out a certain interface. - ----------------------------------------------------------------------*/ - -static void -send_rsolicit(ifp) - struct ifnet *ifp; -{ - struct mbuf *solicit = NULL; - struct ipv6 *header; - struct ipv6_icmp *icmp; - struct ipv6_moptions i6mo,*i6mop = NULL; - struct in6_ifaddr *i6a; - - if ((solicit = get_discov_cluster()) == NULL) - { - DPRINTF(IDL_ERROR, ("Can't allocate mbuf in send_gsolicit().\n")); - return; - } - header = mtod(solicit,struct ipv6 *); - icmp = (struct ipv6_icmp *)(header + 1);/* I want the bytes after the hdr. */ - - bzero(&i6mo,sizeof(struct ipv6_moptions)); - i6mo.i6mo_multicast_ifp = ifp; - i6mo.i6mo_multicast_ttl = 255; - i6mop = &i6mo; - /* Find source link-local or use unspec. */ - for (i6a = in6_ifaddr; i6a; i6a = i6a->i6a_next) - if (i6a->i6a_ifp == ifp && (i6a->i6a_addrflags & I6AF_LINKLOC) && - !(i6a->i6a_addrflags & I6AF_NOTSURE)) - break; - - if (i6a == NULL) - header->ipv6_src = in6addr_any; - else - header->ipv6_src = i6a->i6a_addr.sin6_addr; - - header->ipv6_dst.s6_addr32[0] = htonl(0xff020000); - header->ipv6_dst.s6_addr32[1] = 0; - header->ipv6_dst.s6_addr32[2] = 0; - header->ipv6_dst.s6_addr32[3] = htonl(2); - - header->ipv6_versfl = htonl(0x6f000000); - header->ipv6_hoplimit = 255; /* Guaranteed to be intra-link if arrives with - 255. */ - header->ipv6_nexthdr = IPPROTO_ICMPV6; - header->ipv6_length = ICMPV6_RSOLMINLEN; /* For now. */ - icmp->icmp_type = ICMPV6_ROUTERSOL; - icmp->icmp_code = 0; - icmp->icmp_unused = 0; - icmp->icmp_cksum = 0; - - /* - * For now, just let ND run its normal course and don't include the link - * extension. - */ - - solicit->m_len = solicit->m_pkthdr.len = - header->ipv6_length + sizeof(*header); - icmp->icmp_cksum = in6_cksum(solicit,IPPROTO_ICMPV6,header->ipv6_length, - sizeof(struct ipv6)); - /* - * NOTE: The solicit mbuf chain will have a NULL instead of a valid - * socket ptr. When ipv6_output() calls ipsec_output_policy(), - * this socket ptr will STILL be NULL. Sooo, the security - * policy on outbound packets from here will == system security - * level (set in ipsec_init() of netinet6/ipsec.c). If your - * system security level is paranoid, then you won't move packets - * unless you have _preloaded_ keys for at least the ND addresses. - * - danmcd rja - */ - ipv6_output(solicit, NULL, IPV6_RAWOUTPUT, i6mop, NULL, NULL); -} - -/*---------------------------------------------------------------------- - * Scan list if in6_ifaddrs and see if any are expired (or can go to - * being unique). - ----------------------------------------------------------------------*/ -/* XXX - This function doesn't appear to ever actually remove addresses... */ -void -addrconf_timer(whocares) - void *whocares; -{ - struct in6_ifaddr *i6a = in6_ifaddr; - int s = splnet(); - - while (i6a != NULL) - { - /* - * Scan address list for all sorts of neat stuff. Also, in6_ifaddr - * may be a "prefix list" as well. This will be difficult when - * an router advert. advertises an on-link prefix, but I don't have - * (for whatever reason) an address on that link. - */ -#ifdef __FreeBSD__ - if (i6a->i6a_preferred && i6a->i6a_preferred <= time_second) -#else /* __FreeBSD__ */ - if (i6a->i6a_preferred && i6a->i6a_preferred <= time.tv_sec) -#endif /* __FreeBSD__ */ - { - i6a->i6a_addrflags |= I6AF_DEPRECATED; - DPRINTF(IDL_EVENT,("Address has been deprecated.\n")); - } -#ifdef __FreeBSD__ - if (i6a->i6a_expire && i6a->i6a_expire <= time_second) { -#else /* __FreeBSD__ */ - if (i6a->i6a_expire && i6a->i6a_expire <= time.tv_sec) { -#endif /* __FreeBSD__ */ - if (i6a->i6a_addrflags & I6AF_NOTSURE) { - DPRINTF(IDL_FINISHED, ("Address appears to be unique.\n")); - i6a->i6a_addrflags &= ~I6AF_NOTSURE; - /* - * From what I can tell, addrs that survive DAD are - * permanent. I won't mark as permanent, but I will zero - * expiration for now. - * - * If this is a link-local address, it may be a good idea to - * send a router solicit. (But only if I'm a host.) - */ - if (ipv6rsolicit && IN6_IS_ADDR_LINKLOCAL(&i6a->i6a_addr.sin6_addr)) - send_rsolicit(i6a->i6a_ifp); - - i6a->i6a_expire = 0; - i6a->i6a_preferred = 0; - } else { - /* - * Do address deletion, and nuke any routes, pcb's, etc. - * that use this address. - * - * As an implementation note, it's probably more likely than - * not that addresses that get deprecated (see above) will be - * moved off the master list, as that keeps them away from - * some things. This is something we couldn't implement in time, - * however. - */ - } - } - - i6a = i6a->i6a_next; - } - timeout(addrconf_timer,NULL,v6d_retranstime * hz); - splx(s); -} - -/*---------------------------------------------------------------------- - * Send multicast solicit for this address from all 0's. Set timer such - * that if address is still in in6_ifaddr list, it's good. - ----------------------------------------------------------------------*/ - -void -addrconf_dad(i6a) - struct in6_ifaddr *i6a; -{ - int s; - struct rtentry dummy; - - DPRINTF(IDL_GROSS_EVENT,("Sending DAD solicit!\n")); - s = splnet(); - rt_key(&dummy) = i6a->i6a_ifa.ifa_addr; - dummy.rt_gateway = NULL; - /* - * Set i6a flags and expirations such that it is NOT SURE about uniqueness. - * - * What about random delay? - */ - i6a->i6a_addrflags |= I6AF_NOTSURE; /* Might be done already. */ - i6a->i6a_preferred = 0; -#ifdef __FreeBSD__ - i6a->i6a_expire = time_second + v6d_retranstime; -#else /* __FreeBSD__ */ - i6a->i6a_expire = time.tv_sec + v6d_retranstime; -#endif /* __FreeBSD__ */ - splx(s); - /* - * It would be nice if I delayed a random amount of time here. - */ - send_nsolicit(&dummy, i6a->i6a_ifp, (struct in6_addr *)&in6addr_any, 1); -} |