diff options
| author | Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org> | 2001-01-06 16:07:46 +0000 |
|---|---|---|
| committer | Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org> | 2001-01-06 16:07:46 +0000 |
| commit | 11576f3b84aa808f98ae31158505c13f61a8d3c4 (patch) | |
| tree | c9d9c05fc8095078c76e617b435ee0f9ce5d2c2c /sys | |
| parent | 0edfe847c9bb3c2d0778b85ed8446210e92148cf (diff) | |
prohibited binding to an anycast, notready, or detached IPv6 address.
sync with kame 1.46 -> 1.47
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/netinet6/in6_pcb.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/sys/netinet6/in6_pcb.c b/sys/netinet6/in6_pcb.c index 9fcdff824f8..fcfecb8ee3f 100644 --- a/sys/netinet6/in6_pcb.c +++ b/sys/netinet6/in6_pcb.c @@ -1,4 +1,4 @@ -/* $OpenBSD: in6_pcb.c,v 1.21 2000/12/21 00:54:11 itojun Exp $ */ +/* $OpenBSD: in6_pcb.c,v 1.22 2001/01/06 16:07:45 itojun Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. @@ -203,6 +203,30 @@ in6_pcbbind(inp, nam) */ if (so->so_options & SO_REUSEADDR) reuseport = SO_REUSEADDR | SO_REUSEPORT; + } else if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { + struct ifaddr *ia = NULL; + + sin6->sin6_port = 0; /* + * Yechhhh, because of upcoming + * call to ifa_ifwithaddr(), which + * does bcmp's over the PORTS as + * well. (What about flow?) + */ + sin6->sin6_flowinfo = 0; + if ((ia = ifa_ifwithaddr((struct sockaddr *)sin6)) + == NULL) + return EADDRNOTAVAIL; + + /* + * XXX: bind to an anycast address might accidentally + * cause sending a packet with anycast source address. + * We should allow to bind to a deprecated address, since + * the application dare to use it. + */ + if (ia && + ((struct in6_ifaddr *)ia)->ia6_flags & + (IN6_IFF_ANYCAST|IN6_IFF_NOTREADY|IN6_IFF_DETACHED)) + return(EADDRNOTAVAIL); } #if 0 /* we don't support it */ else if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |