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Re: [PATCH v3] [BZ #11438] getaddrinfo: map RFC 1918 addresses to global scope


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On Tue, Sep 18, 2012 at 02:28:09AM +0400, Dmitry V. Levin wrote:
> Change RFC 1918 addresses mapping from site-local scope to global scope.
> ---
> This time with the NEWS entry updated.
>  ChangeLog                   |    7 +++++++
>  NEWS                        |    6 +++---
>  posix/gai.conf              |   16 ++--------------
>  sysdeps/posix/getaddrinfo.c |    4 ----
>  4 files changed, 12 insertions(+), 21 deletions(-)
> 
> diff --git a/ChangeLog b/ChangeLog
> index bb46639..a5bef90 100644
> --- a/ChangeLog
> +++ b/ChangeLog
> @@ -1,3 +1,10 @@
> +2012-09-17  Dmitry V. Levin  <ldv@altlinux.org>
> +
> +	[BZ #11438]
> +	* sysdeps/posix/getaddrinfo.c (default_scopes): Map RFC 1918 addresses
> +	to global scope.
> +	* posix/gai.conf: Document new scope table defaults.
> +
>  2012-09-17  Chris Metcalf  <cmetcalf@tilera.com>
>  
>  	* crypt/md5test-giant.c (TIMEOUT): Increase to 8 minutes for tilegx.
> diff --git a/NEWS b/NEWS
> index adcb741..791fb30 100644
> --- a/NEWS
> +++ b/NEWS
> @@ -9,12 +9,12 @@ Version 2.17
>  
>  * The following bugs are resolved with this release:
>  
> -  1349, 3479, 5400, 6778, 6808, 9685, 9914, 10014, 10038, 11607, 13412,
> -  13542, 13717, 13696, 13939, 13966, 14042, 14090, 14166, 14150, 14151,
> +  1349, 3479, 5400, 6778, 6808, 9685, 9914, 10014, 10038, 11438, 11607,
> +  13412, 13542, 13696, 13717, 13939, 13966, 14042, 14090, 14150, 14151,
>    14154, 14157, 14166, 14173, 14195, 14237, 14252, 14283, 14298, 14303,
>    14307, 14328, 14331, 14336, 14337, 14347, 14349, 14459, 14476, 14505,
>    14510, 14516, 14518, 14519, 14532, 14538, 14544, 14545, 14576, 14583,
> -  14587
> +  14587.
>  
>  * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
>    Optimized versions of memcpy, memset, and memcmp added for System z10 and
> diff --git a/posix/gai.conf b/posix/gai.conf
> index 195287e..4616ed0 100644
> --- a/posix/gai.conf
> +++ b/posix/gai.conf
> @@ -55,23 +55,11 @@
>  
>  #
>  # scopev4  <mask>  <value>
> -#    Add another rule to the RFC 3484 scope table for IPv4 addresses.
> -#    By default the scope IDs described in section 3.2 in RFC 3484 are
> +#    Add another rule to the RFC 6724 scope table for IPv4 addresses.
> +#    By default the scope IDs described in section 3.2 in RFC 6724 are
>  #    used.  Changing these defaults should hardly ever be necessary.
>  #    The defaults are equivalent to:
>  #
>  #scopev4 ::ffff:169.254.0.0/112  2
>  #scopev4 ::ffff:127.0.0.0/104    2
> -#scopev4 ::ffff:10.0.0.0/104     5
> -#scopev4 ::ffff:172.16.0.0/108   5
> -#scopev4 ::ffff:192.168.0.0/112  5
> -#scopev4 ::ffff:0.0.0.0/96       14
> -#
> -#    For sites which use site-local IPv4 addresses behind NAT there is
> -#    the problem that even if IPv4 addresses are preferred they do not
> -#    have the same scope and are therefore not sorted first.  To change
> -#    this use only these rules:
> -#
> -#scopev4 ::ffff:169.254.0.0/112  2
> -#scopev4 ::ffff:127.0.0.0/104    2
>  #scopev4 ::ffff:0.0.0.0/96       14
> diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
> index 05883bd..672571e 100644
> --- a/sysdeps/posix/getaddrinfo.c
> +++ b/sysdeps/posix/getaddrinfo.c
> @@ -1369,10 +1369,6 @@ static const struct scopeentry
>      /* Link-local addresses: scope 2.  */
>      { { { 169, 254, 0, 0 } }, htonl_c (0xffff0000), 2 },
>      { { { 127, 0, 0, 0 } }, htonl_c (0xff000000), 2 },
> -    /* Site-local addresses: scope 5.  */
> -    { { { 10, 0, 0, 0 } }, htonl_c (0xff000000), 5 },
> -    { { { 172, 16, 0, 0 } }, htonl_c (0xfff00000), 5 },
> -    { { { 192, 168, 0, 0 } }, htonl_c (0xffff0000), 5 },
>      /* Default: scope 14.  */
>      { { { 0, 0, 0, 0 } }, htonl_c (0x00000000), 14 }
>    };
> 
> -- 
> ldv

-- 
ldv

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