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[IPV6] ADDRCONF: Statically link __ipv6_addr_type() for sunrpc subsys…
…tem. Link __ipv6_addr_type() statically for sunrpc code even if IPv6 is built as module. Signed-off-by: YOSHIFUJI Hidaki <yoshfuji@linux-ipv6.org>
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YOSHIFUJI Hideaki
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David S. Miller
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Feb 26, 2007
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/* | ||
* IPv6 library code, needed by static components when full IPv6 support is | ||
* not configured or static. | ||
*/ | ||
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#include <net/ipv6.h> | ||
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#define IPV6_ADDR_SCOPE_TYPE(scope) ((scope) << 16) | ||
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static inline unsigned ipv6_addr_scope2type(unsigned scope) | ||
{ | ||
switch(scope) { | ||
case IPV6_ADDR_SCOPE_NODELOCAL: | ||
return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_NODELOCAL) | | ||
IPV6_ADDR_LOOPBACK); | ||
case IPV6_ADDR_SCOPE_LINKLOCAL: | ||
return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL) | | ||
IPV6_ADDR_LINKLOCAL); | ||
case IPV6_ADDR_SCOPE_SITELOCAL: | ||
return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL) | | ||
IPV6_ADDR_SITELOCAL); | ||
} | ||
return IPV6_ADDR_SCOPE_TYPE(scope); | ||
} | ||
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int __ipv6_addr_type(const struct in6_addr *addr) | ||
{ | ||
__be32 st; | ||
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st = addr->s6_addr32[0]; | ||
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/* Consider all addresses with the first three bits different of | ||
000 and 111 as unicasts. | ||
*/ | ||
if ((st & htonl(0xE0000000)) != htonl(0x00000000) && | ||
(st & htonl(0xE0000000)) != htonl(0xE0000000)) | ||
return (IPV6_ADDR_UNICAST | | ||
IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL)); | ||
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if ((st & htonl(0xFF000000)) == htonl(0xFF000000)) { | ||
/* multicast */ | ||
/* addr-select 3.1 */ | ||
return (IPV6_ADDR_MULTICAST | | ||
ipv6_addr_scope2type(IPV6_ADDR_MC_SCOPE(addr))); | ||
} | ||
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if ((st & htonl(0xFFC00000)) == htonl(0xFE800000)) | ||
return (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_UNICAST | | ||
IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL)); /* addr-select 3.1 */ | ||
if ((st & htonl(0xFFC00000)) == htonl(0xFEC00000)) | ||
return (IPV6_ADDR_SITELOCAL | IPV6_ADDR_UNICAST | | ||
IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL)); /* addr-select 3.1 */ | ||
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if ((addr->s6_addr32[0] | addr->s6_addr32[1]) == 0) { | ||
if (addr->s6_addr32[2] == 0) { | ||
if (addr->s6_addr32[3] == 0) | ||
return IPV6_ADDR_ANY; | ||
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if (addr->s6_addr32[3] == htonl(0x00000001)) | ||
return (IPV6_ADDR_LOOPBACK | IPV6_ADDR_UNICAST | | ||
IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL)); /* addr-select 3.4 */ | ||
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return (IPV6_ADDR_COMPATv4 | IPV6_ADDR_UNICAST | | ||
IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL)); /* addr-select 3.3 */ | ||
} | ||
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if (addr->s6_addr32[2] == htonl(0x0000ffff)) | ||
return (IPV6_ADDR_MAPPED | | ||
IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL)); /* addr-select 3.3 */ | ||
} | ||
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return (IPV6_ADDR_RESERVED | | ||
IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL)); /* addr-select 3.4 */ | ||
} | ||
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