Re: [PATCH 1/4] python/semanage: move valid_types initialisations to class constructors

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On Thu, Dec 20, 2018 at 4:14 PM Petr Lautrbach <plautrba@xxxxxxxxxx> wrote:
>
> Based on idea from Nicolas Iooss <nicolas.iooss@xxxxxxx>
>
> Fixes:
> $ sudo semanage
> Traceback (most recent call last):
>   File "/usr/sbin/semanage", line 28, in <module>
>     import seobject
>   File "/usr/lib/python3.7/site-packages/seobject.py", line 1045, in <module>
>     class portRecords(semanageRecords):
>   File "/usr/lib/python3.7/site-packages/seobject.py", line 1047, in portRecords
>     valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
>   File "/usr/lib/python3.7/site-packages/sepolicy/__init__.py", line 203, in <genexpr>
>     return ({
>   File "/usr/lib64/python3.7/site-packages/setools/typeattrquery.py", line 65, in results
>     for attr in self.policy.typeattributes():
> AttributeError: 'NoneType' object has no attribute 'typeattributes'
>
> https://github.com/SELinuxProject/selinux/issues/81
>
> Signed-off-by: Petr Lautrbach <plautrba@xxxxxxxxxx>

Why are classes ibpkeyRecords and ibendportRecords not covered by the
changes from this patch?

Nicolas

> ---
>  python/semanage/seobject.py | 33 ++++++++++++++++++++-------------
>  1 file changed, 20 insertions(+), 13 deletions(-)
>
> diff --git a/python/semanage/seobject.py b/python/semanage/seobject.py
> index efec0a55..2b43b65c 100644
> --- a/python/semanage/seobject.py
> +++ b/python/semanage/seobject.py
> @@ -1043,13 +1043,15 @@ class seluserRecords(semanageRecords):
>
>
>  class portRecords(semanageRecords):
> -    try:
> -        valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
> -    except RuntimeError:
> -        valid_types = []
> +
> +    valid_types = []
>
>      def __init__(self, args = None):
>          semanageRecords.__init__(self, args)
> +        try:
> +            self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
> +        except RuntimeError:
> +            pass
>
>      def __genkey(self, port, proto):
>          if proto == "tcp":
> @@ -1823,14 +1825,16 @@ class ibendportRecords(semanageRecords):
>              print(rec)
>
>  class nodeRecords(semanageRecords):
> -    try:
> -        valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "node_type"))[0]["types"])
> -    except RuntimeError:
> -        valid_types = []
> +
> +    valid_types = []
>
>      def __init__(self, args = None):
>          semanageRecords.__init__(self, args)
>          self.protocol = ["ipv4", "ipv6"]
> +        try:
> +            self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "node_type"))[0]["types"])
> +        except RuntimeError:
> +            pass
>
>      def validate(self, addr, mask, protocol):
>          newaddr = addr
> @@ -2264,14 +2268,17 @@ class interfaceRecords(semanageRecords):
>
>
>  class fcontextRecords(semanageRecords):
> -    try:
> -        valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "file_type"))[0]["types"])
> -        valid_types += list(list(sepolicy.info(sepolicy.ATTRIBUTE, "device_node"))[0]["types"])
> -    except RuntimeError:
> -        valid_types = []
> +
> +    valid_types = []
>
>      def __init__(self, args = None):
>          semanageRecords.__init__(self, args)
> +        try:
> +            self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "file_type"))[0]["types"])
> +            self.valid_types += list(list(sepolicy.info(sepolicy.ATTRIBUTE, "device_node"))[0]["types"])
> +        except RuntimeError:
> +            pass
> +
>          self.equiv = {}
>          self.equiv_dist = {}
>          self.equal_ind = False
> --
> 2.20.1
>




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