Re: [PATCH] 2.6.38: access permission filesystem 0.25

From: Randy Dunlap
Date: Sun Apr 24 2011 - 15:10:12 EST


On 04/11/11 13:47, Olaf Dietsche wrote:
> Randy Dunlap <randy.dunlap@xxxxxxxxxx> writes:
>
>> +config ACCESSFS_USER_PORTS
>> + tristate "User permission based IP ports"
>> + depends on ACCESS_FS
>> + select NET_HOOKS
>> + default n
>> + help
>> + If you say Y here, you will be able to control access to IP ports
>> + based on user-/groupid. For this to work, you must say Y
>> + to CONFIG_NET_HOOKS.
>>
>> That last sentence is handled (in theory) by "select NET_HOOKS", right?
>>
>> But NET_HOOKS depends on INET && EXPERIMENTAL, so this config should not
>> select NET_HOOKS unless INET && EXPERIMENTAL are enabled also.
>
> Thanks for spotting this. Fixed version is below and at

+config ACCESSFS_USER_PORTS
+ tristate "User permission based IP ports"
+ depends on ACCESS_FS && INET
+ select NET_HOOKS
+ default n
+ help
+ If you say Y here, you will be able to control access to IP ports
+ based on user-/groupid. For this to work, you must say Y
+ to CONFIG_NET_HOOKS.

The last sentence of help text is unneeded and could be confusing to a user
since the "select NET_HOOKS" is already done above.


Have you built this lately? There have been a few vfs changes recently.
Building on 2.6.39-rc4, I get this:

/lnx/src/lnx-2639-rc4/fs/accessfs/inode.c: In function 'accessfs_get_sb':
/lnx/src/lnx-2639-rc4/fs/accessfs/inode.c:363: error: implicit declaration of function 'get_sb_single'
/lnx/src/lnx-2639-rc4/fs/accessfs/inode.c: At top level:
/lnx/src/lnx-2639-rc4/fs/accessfs/inode.c:404: error: unknown field 'get_sb' specified in initializer
/lnx/src/lnx-2639-rc4/fs/accessfs/inode.c:404: warning: initialization makes integer from pointer without a cast
/lnx/src/lnx-2639-rc4/fs/accessfs/inode.c:404: error: initializer element is not computable at load time
/lnx/src/lnx-2639-rc4/fs/accessfs/inode.c:404: error: (near initialization for 'accessfs_fs_type.fs_flags')


> <http://www.olafdietsche.de/linux/accessfs/>
>
> Regards, Olaf
>
> Documentation/filesystems/accessfs.txt | 41 +++
> fs/Kconfig | 1 +
> fs/Makefile | 1 +
> fs/accessfs/Kconfig | 63 +++++
> fs/accessfs/Makefile | 11 +
> fs/accessfs/capabilities.c | 108 ++++++++
> fs/accessfs/inode.c | 432 ++++++++++++++++++++++++++++++++
> fs/accessfs/ip.c | 101 ++++++++
> include/linux/accessfs_fs.h | 42 +++
> include/net/sock.h | 43 ++++
> net/Kconfig | 12 +
> net/Makefile | 1 +
> net/hooks.c | 55 ++++
> net/ipv4/af_inet.c | 2 +-
> net/ipv6/af_inet6.c | 2 +-
> 15 files changed, 913 insertions(+), 2 deletions(-)


--
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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