diff mbox series

[v3] semanage, sepolicy: list also ports not attributed with port_type

Message ID 20230613180756.12978-1-toiwoton@gmail.com (mailing list archive)
State Superseded
Delegated to: Petr Lautrbach
Headers show
Series [v3] semanage, sepolicy: list also ports not attributed with port_type | expand

Commit Message

Topi Miettinen June 13, 2023, 6:07 p.m. UTC
For `semanage port -l` and `sepolicy network -t type`, show also ports
which are not attributed with `port_type`. Such ports may exist in
custom policies and even the attribute `port_type` may not be defined.

This fixes the following error with `semanage port -l` (and similar
error with `sepolicy network -t type`):

Traceback (most recent call last):
  File "/usr/sbin/semanage", line 975, in <module>
    do_parser()
  File "/usr/sbin/semanage", line 947, in do_parser
    args.func(args)
  File "/usr/sbin/semanage", line 441, in handlePort
    OBJECT = object_dict['port'](args)
             ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/seobject.py", line 1057, in __init__
    self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
IndexError: list index out of range

Signed-off-by: Topi Miettinen <toiwoton@gmail.com>

---

v3: use even better version, thanks to Petr Lautrbach
v2: fix other cases and use better version courtesy of Petr Lautrbach
---
 python/semanage/semanage-bash-completion.sh | 2 +-
 python/semanage/seobject.py                 | 2 +-
 python/sepolicy/sepolicy-bash-completion.sh | 2 +-
 python/sepolicy/sepolicy/__init__.py        | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

Comments

Petr Lautrbach June 14, 2023, 10:03 a.m. UTC | #1
Topi Miettinen <toiwoton@gmail.com> writes:

> For `semanage port -l` and `sepolicy network -t type`, show also ports
> which are not attributed with `port_type`. Such ports may exist in
> custom policies and even the attribute `port_type` may not be defined.
>
> This fixes the following error with `semanage port -l` (and similar
> error with `sepolicy network -t type`):
>
> Traceback (most recent call last):
>   File "/usr/sbin/semanage", line 975, in <module>
>     do_parser()
>   File "/usr/sbin/semanage", line 947, in do_parser
>     args.func(args)
>   File "/usr/sbin/semanage", line 441, in handlePort
>     OBJECT = object_dict['port'](args)
>              ^^^^^^^^^^^^^^^^^^^^^^^^^
>   File "/usr/lib/python3/dist-packages/seobject.py", line 1057, in __init__
>     self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
>                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
> IndexError: list index out of range
>
> Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
>
> ---
>
> v3: use even better version, thanks to Petr Lautrbach
> v2: fix other cases and use better version courtesy of Petr Lautrbach
> ---
>  python/semanage/semanage-bash-completion.sh | 2 +-
>  python/semanage/seobject.py                 | 2 +-
>  python/sepolicy/sepolicy-bash-completion.sh | 2 +-
>  python/sepolicy/sepolicy/__init__.py        | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/python/semanage/semanage-bash-completion.sh b/python/semanage/semanage-bash-completion.sh
> index d0dd139f..1e3f6f9d 100644
> --- a/python/semanage/semanage-bash-completion.sh
> +++ b/python/semanage/semanage-bash-completion.sh
> @@ -37,7 +37,7 @@ __get_all_types () {
>      seinfo -t 2> /dev/null | tail -n +3 
>  }
>  __get_all_port_types () { 
> -    seinfo -aport_type -x 2>/dev/null | tail -n +2 
> +    sepolicy network -l
>  }
>  __get_all_domains () { 
>      seinfo -adomain -x 2>/dev/null | tail -n +2 
> diff --git a/python/semanage/seobject.py b/python/semanage/seobject.py
> index d82da494..323aae3f 100644
> --- a/python/semanage/seobject.py
> +++ b/python/semanage/seobject.py
> @@ -1055,7 +1055,7 @@ class portRecords(semanageRecords):
>      def __init__(self, args = None):
>          semanageRecords.__init__(self, args)
>          try:
> -            self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
> +            self.valid_types = [x["type"] for x in sepolicy.info(sepolicy.PORT)]
>          except RuntimeError:
>              pass

It looked good to me but I was getting different number of types when I
searched for `port_type` attribute method and for `portcon` (seinfo
--portcon).

So I compared lists and checked differences and it turned out that this
would break using `semanage port -a ...` for all policies based on
refpolicy.

In refpolicy there are types with `port_type` attribute but without any
`portcon` statement, see this commit 
https://github.com/SELinuxProject/refpolicy/commit/a108d9db60747a887f626b99cce37738462dd3cd

SELinux notebook uses `port_type` attribute too -
https://github.com/SELinuxProject/selinux-notebook/blob/main/src/network_support.md#socket-controls-access-control-for-network-ports

I.e. using this change it would not be possible to add a new port mapping for
types like `stunnel_port_t`:

    # seinfo -aport_type -x | grep stunnel
        stunnel_port_t

    # semanage port -a -t stunnel_port_t -p tcp 12345
    ValueError: Type stunnel_port_t is invalid, must be a port type


Thanks,

Petr


> diff --git a/python/sepolicy/sepolicy-bash-completion.sh b/python/sepolicy/sepolicy-bash-completion.sh
> index 13638e4d..467333b8 100644
> --- a/python/sepolicy/sepolicy-bash-completion.sh
> +++ b/python/sepolicy/sepolicy-bash-completion.sh
> @@ -52,7 +52,7 @@ __get_all_classes () {
>      seinfo -c 2> /dev/null | tail -n +2
>  }
>  __get_all_port_types () {
> -    seinfo -aport_type -x 2> /dev/null | tail -n +2
> +    sepolicy network -l
>  }
>  __get_all_domain_types () {
>      seinfo -adomain -x 2> /dev/null | tail -n +2
> diff --git a/python/sepolicy/sepolicy/__init__.py b/python/sepolicy/sepolicy/__init__.py
> index c177cdfc..9d3b640b 100644
> --- a/python/sepolicy/sepolicy/__init__.py
> +++ b/python/sepolicy/sepolicy/__init__.py
> @@ -989,7 +989,7 @@ def get_all_port_types():
>      global port_types
>      if port_types:
>          return port_types
> -    port_types = list(sorted(info(ATTRIBUTE, "port_type"))[0]["types"])
> +    port_types = [x["type"] for x in info(PORT)]
>      return port_types
>  
>  
> -- 
> 2.39.2
Topi Miettinen June 14, 2023, 5:09 p.m. UTC | #2
On 14.6.2023 13.03, Petr Lautrbach wrote:
> Topi Miettinen <toiwoton@gmail.com> writes:
> 
>> For `semanage port -l` and `sepolicy network -t type`, show also ports
>> which are not attributed with `port_type`. Such ports may exist in
>> custom policies and even the attribute `port_type` may not be defined.
>>
>> This fixes the following error with `semanage port -l` (and similar
>> error with `sepolicy network -t type`):
>>
>> Traceback (most recent call last):
>>    File "/usr/sbin/semanage", line 975, in <module>
>>      do_parser()
>>    File "/usr/sbin/semanage", line 947, in do_parser
>>      args.func(args)
>>    File "/usr/sbin/semanage", line 441, in handlePort
>>      OBJECT = object_dict['port'](args)
>>               ^^^^^^^^^^^^^^^^^^^^^^^^^
>>    File "/usr/lib/python3/dist-packages/seobject.py", line 1057, in __init__
>>      self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
>>                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
>> IndexError: list index out of range
>>
>> Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
>>
>> ---
>>
>> v3: use even better version, thanks to Petr Lautrbach
>> v2: fix other cases and use better version courtesy of Petr Lautrbach
>> ---
>>   python/semanage/semanage-bash-completion.sh | 2 +-
>>   python/semanage/seobject.py                 | 2 +-
>>   python/sepolicy/sepolicy-bash-completion.sh | 2 +-
>>   python/sepolicy/sepolicy/__init__.py        | 2 +-
>>   4 files changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/python/semanage/semanage-bash-completion.sh b/python/semanage/semanage-bash-completion.sh
>> index d0dd139f..1e3f6f9d 100644
>> --- a/python/semanage/semanage-bash-completion.sh
>> +++ b/python/semanage/semanage-bash-completion.sh
>> @@ -37,7 +37,7 @@ __get_all_types () {
>>       seinfo -t 2> /dev/null | tail -n +3
>>   }
>>   __get_all_port_types () {
>> -    seinfo -aport_type -x 2>/dev/null | tail -n +2
>> +    sepolicy network -l
>>   }
>>   __get_all_domains () {
>>       seinfo -adomain -x 2>/dev/null | tail -n +2
>> diff --git a/python/semanage/seobject.py b/python/semanage/seobject.py
>> index d82da494..323aae3f 100644
>> --- a/python/semanage/seobject.py
>> +++ b/python/semanage/seobject.py
>> @@ -1055,7 +1055,7 @@ class portRecords(semanageRecords):
>>       def __init__(self, args = None):
>>           semanageRecords.__init__(self, args)
>>           try:
>> -            self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
>> +            self.valid_types = [x["type"] for x in sepolicy.info(sepolicy.PORT)]
>>           except RuntimeError:
>>               pass
> 
> It looked good to me but I was getting different number of types when I
> searched for `port_type` attribute method and for `portcon` (seinfo
> --portcon).
> 
> So I compared lists and checked differences and it turned out that this
> would break using `semanage port -a ...` for all policies based on
> refpolicy.
> 
> In refpolicy there are types with `port_type` attribute but without any
> `portcon` statement, see this commit
> https://github.com/SELinuxProject/refpolicy/commit/a108d9db60747a887f626b99cce37738462dd3cd
> 
> SELinux notebook uses `port_type` attribute too -
> https://github.com/SELinuxProject/selinux-notebook/blob/main/src/network_support.md#socket-controls-access-control-for-network-ports
> 
> I.e. using this change it would not be possible to add a new port mapping for
> types like `stunnel_port_t`:
> 
>      # seinfo -aport_type -x | grep stunnel
>          stunnel_port_t
> 
>      # semanage port -a -t stunnel_port_t -p tcp 12345
>      ValueError: Type stunnel_port_t is invalid, must be a port type

Perhaps both plain types attributed with `port_type` and actual portcon 
types could be considered? Then the tools should work with refpolicy and 
custom policies.

-Topi

> 
> 
> Thanks,
> 
> Petr
> 
> 
>> diff --git a/python/sepolicy/sepolicy-bash-completion.sh b/python/sepolicy/sepolicy-bash-completion.sh
>> index 13638e4d..467333b8 100644
>> --- a/python/sepolicy/sepolicy-bash-completion.sh
>> +++ b/python/sepolicy/sepolicy-bash-completion.sh
>> @@ -52,7 +52,7 @@ __get_all_classes () {
>>       seinfo -c 2> /dev/null | tail -n +2
>>   }
>>   __get_all_port_types () {
>> -    seinfo -aport_type -x 2> /dev/null | tail -n +2
>> +    sepolicy network -l
>>   }
>>   __get_all_domain_types () {
>>       seinfo -adomain -x 2> /dev/null | tail -n +2
>> diff --git a/python/sepolicy/sepolicy/__init__.py b/python/sepolicy/sepolicy/__init__.py
>> index c177cdfc..9d3b640b 100644
>> --- a/python/sepolicy/sepolicy/__init__.py
>> +++ b/python/sepolicy/sepolicy/__init__.py
>> @@ -989,7 +989,7 @@ def get_all_port_types():
>>       global port_types
>>       if port_types:
>>           return port_types
>> -    port_types = list(sorted(info(ATTRIBUTE, "port_type"))[0]["types"])
>> +    port_types = [x["type"] for x in info(PORT)]
>>       return port_types
>>   
>>   
>> -- 
>> 2.39.2
>
Petr Lautrbach June 16, 2023, 6:08 a.m. UTC | #3
Topi Miettinen <toiwoton@gmail.com> writes:

> On 14.6.2023 13.03, Petr Lautrbach wrote:
>> Topi Miettinen <toiwoton@gmail.com> writes:
>> 
>>> For `semanage port -l` and `sepolicy network -t type`, show also ports
>>> which are not attributed with `port_type`. Such ports may exist in
>>> custom policies and even the attribute `port_type` may not be defined.
>>>
>>> This fixes the following error with `semanage port -l` (and similar
>>> error with `sepolicy network -t type`):
>>>
>>> Traceback (most recent call last):
>>>    File "/usr/sbin/semanage", line 975, in <module>
>>>      do_parser()
>>>    File "/usr/sbin/semanage", line 947, in do_parser
>>>      args.func(args)
>>>    File "/usr/sbin/semanage", line 441, in handlePort
>>>      OBJECT = object_dict['port'](args)
>>>               ^^^^^^^^^^^^^^^^^^^^^^^^^
>>>    File "/usr/lib/python3/dist-packages/seobject.py", line 1057, in __init__
>>>      self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
>>>                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
>>> IndexError: list index out of range
>>>
>>> Signed-off-by: Topi Miettinen <toiwoton@gmail.com>
>>>
>>> ---
>>>
>>> v3: use even better version, thanks to Petr Lautrbach
>>> v2: fix other cases and use better version courtesy of Petr Lautrbach
>>> ---
>>>   python/semanage/semanage-bash-completion.sh | 2 +-
>>>   python/semanage/seobject.py                 | 2 +-
>>>   python/sepolicy/sepolicy-bash-completion.sh | 2 +-
>>>   python/sepolicy/sepolicy/__init__.py        | 2 +-
>>>   4 files changed, 4 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/python/semanage/semanage-bash-completion.sh b/python/semanage/semanage-bash-completion.sh
>>> index d0dd139f..1e3f6f9d 100644
>>> --- a/python/semanage/semanage-bash-completion.sh
>>> +++ b/python/semanage/semanage-bash-completion.sh
>>> @@ -37,7 +37,7 @@ __get_all_types () {
>>>       seinfo -t 2> /dev/null | tail -n +3
>>>   }
>>>   __get_all_port_types () {
>>> -    seinfo -aport_type -x 2>/dev/null | tail -n +2
>>> +    sepolicy network -l
>>>   }
>>>   __get_all_domains () {
>>>       seinfo -adomain -x 2>/dev/null | tail -n +2
>>> diff --git a/python/semanage/seobject.py b/python/semanage/seobject.py
>>> index d82da494..323aae3f 100644
>>> --- a/python/semanage/seobject.py
>>> +++ b/python/semanage/seobject.py
>>> @@ -1055,7 +1055,7 @@ class portRecords(semanageRecords):
>>>       def __init__(self, args = None):
>>>           semanageRecords.__init__(self, args)
>>>           try:
>>> -            self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
>>> +            self.valid_types = [x["type"] for x in sepolicy.info(sepolicy.PORT)]
>>>           except RuntimeError:
>>>               pass
>> 
>> It looked good to me but I was getting different number of types when I
>> searched for `port_type` attribute method and for `portcon` (seinfo
>> --portcon).
>> 
>> So I compared lists and checked differences and it turned out that this
>> would break using `semanage port -a ...` for all policies based on
>> refpolicy.
>> 
>> In refpolicy there are types with `port_type` attribute but without any
>> `portcon` statement, see this commit
>> https://github.com/SELinuxProject/refpolicy/commit/a108d9db60747a887f626b99cce37738462dd3cd
>> 
>> SELinux notebook uses `port_type` attribute too -
>> https://github.com/SELinuxProject/selinux-notebook/blob/main/src/network_support.md#socket-controls-access-control-for-network-ports
>> 
>> I.e. using this change it would not be possible to add a new port mapping for
>> types like `stunnel_port_t`:
>> 
>>      # seinfo -aport_type -x | grep stunnel
>>          stunnel_port_t
>> 
>>      # semanage port -a -t stunnel_port_t -p tcp 12345
>>      ValueError: Type stunnel_port_t is invalid, must be a port type
>
> Perhaps both plain types attributed with `port_type` and actual portcon 
> types could be considered? Then the tools should work with refpolicy and 
> custom policies.
>

I guess it could work. 


>
>> 
>> 
>> Thanks,
>> 
>> Petr
>> 
>> 
>>> diff --git a/python/sepolicy/sepolicy-bash-completion.sh b/python/sepolicy/sepolicy-bash-completion.sh
>>> index 13638e4d..467333b8 100644
>>> --- a/python/sepolicy/sepolicy-bash-completion.sh
>>> +++ b/python/sepolicy/sepolicy-bash-completion.sh
>>> @@ -52,7 +52,7 @@ __get_all_classes () {
>>>       seinfo -c 2> /dev/null | tail -n +2
>>>   }
>>>   __get_all_port_types () {
>>> -    seinfo -aport_type -x 2> /dev/null | tail -n +2
>>> +    sepolicy network -l
>>>   }
>>>   __get_all_domain_types () {
>>>       seinfo -adomain -x 2> /dev/null | tail -n +2
>>> diff --git a/python/sepolicy/sepolicy/__init__.py b/python/sepolicy/sepolicy/__init__.py
>>> index c177cdfc..9d3b640b 100644
>>> --- a/python/sepolicy/sepolicy/__init__.py
>>> +++ b/python/sepolicy/sepolicy/__init__.py
>>> @@ -989,7 +989,7 @@ def get_all_port_types():
>>>       global port_types
>>>       if port_types:
>>>           return port_types
>>> -    port_types = list(sorted(info(ATTRIBUTE, "port_type"))[0]["types"])
>>> +    port_types = [x["type"] for x in info(PORT)]
>>>       return port_types
>>>   
>>>   
>>> -- 
>>> 2.39.2
>>
diff mbox series

Patch

diff --git a/python/semanage/semanage-bash-completion.sh b/python/semanage/semanage-bash-completion.sh
index d0dd139f..1e3f6f9d 100644
--- a/python/semanage/semanage-bash-completion.sh
+++ b/python/semanage/semanage-bash-completion.sh
@@ -37,7 +37,7 @@  __get_all_types () {
     seinfo -t 2> /dev/null | tail -n +3 
 }
 __get_all_port_types () { 
-    seinfo -aport_type -x 2>/dev/null | tail -n +2 
+    sepolicy network -l
 }
 __get_all_domains () { 
     seinfo -adomain -x 2>/dev/null | tail -n +2 
diff --git a/python/semanage/seobject.py b/python/semanage/seobject.py
index d82da494..323aae3f 100644
--- a/python/semanage/seobject.py
+++ b/python/semanage/seobject.py
@@ -1055,7 +1055,7 @@  class portRecords(semanageRecords):
     def __init__(self, args = None):
         semanageRecords.__init__(self, args)
         try:
-            self.valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
+            self.valid_types = [x["type"] for x in sepolicy.info(sepolicy.PORT)]
         except RuntimeError:
             pass
 
diff --git a/python/sepolicy/sepolicy-bash-completion.sh b/python/sepolicy/sepolicy-bash-completion.sh
index 13638e4d..467333b8 100644
--- a/python/sepolicy/sepolicy-bash-completion.sh
+++ b/python/sepolicy/sepolicy-bash-completion.sh
@@ -52,7 +52,7 @@  __get_all_classes () {
     seinfo -c 2> /dev/null | tail -n +2
 }
 __get_all_port_types () {
-    seinfo -aport_type -x 2> /dev/null | tail -n +2
+    sepolicy network -l
 }
 __get_all_domain_types () {
     seinfo -adomain -x 2> /dev/null | tail -n +2
diff --git a/python/sepolicy/sepolicy/__init__.py b/python/sepolicy/sepolicy/__init__.py
index c177cdfc..9d3b640b 100644
--- a/python/sepolicy/sepolicy/__init__.py
+++ b/python/sepolicy/sepolicy/__init__.py
@@ -989,7 +989,7 @@  def get_all_port_types():
     global port_types
     if port_types:
         return port_types
-    port_types = list(sorted(info(ATTRIBUTE, "port_type"))[0]["types"])
+    port_types = [x["type"] for x in info(PORT)]
     return port_types