WebDAV

[Daniel J Walsh]

Andrew Z wrote:

>
> Daniel J Walsh wrote:
>
>> Andrew Z wrote:
>>
>>>
>>> Is there a SELinux policy for use with WebDAV?   I have the WebDAV 
>>> working correctly with Apache and Cadaver, but SELinux prevents 
>>> writing.  I have noticed that there are at least two issues.  First, 
>>> SELinux prevents Apache from writing to httpd_sys_content_t.  
>>> Second, Apache needs to update its locking database.  I don't want 
>>> to allow write access to all httpd_sys_content_t.
>>> type=AVC msg=audit(1126138296.843:56): avc:  denied  { write } for  
>>> pid=3525 comm="httpd" name="lockdb.dir" dev=hda7 ino=1011851 
>>> scontext=system_u:system_r:httpd_t 
>>> tcontext=system_u:object_r:var_lib_t tclass=file
>>> type=SYSCALL msg=audit(1126138296.843:56): arch=40000003 syscall=5 
>>> success=yes exit=11 a0=8675e00 a1=42 a2=1b6 a3=886a6c0 items=1 
>>> pid=3525 auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 
>>> egid=48 sgid=48 fsgid=48 comm="httpd" exe="/usr/sbin/httpd"
>>> type=CWD msg=audit(1126138296.843:56):  cwd="/"
>>> type=PATH msg=audit(1126138296.843:56): item=0 
>>> name="/var/lib/dav/lockdb.dir" flags=310  inode=1006106 dev=03:07 
>>> mode=040700 ouid=48 ogid=48 rdev=00:00
>>>
>>>
>>> type=AVC msg=audit(1126138520.634:58): avc:  denied  { write } for  
>>> pid=3526 comm="httpd" name="lockdb.dir" dev=hda7 ino=1011851 
>>> scontext=system_u:system_r:httpd_t 
>>> tcontext=system_u:object_r:var_lib_t tclass=file
>>> type=SYSCALL msg=audit(1126138520.634:58): arch=40000003 syscall=5 
>>> success=yes exit=11 a0=867dc20 a1=42 a2=1b6 a3=867fbd8 items=1 
>>> pid=3526 auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 
>>> egid=48 sgid=48 fsgid=48 comm="httpd" exe="/usr/sbin/httpd"
>>> type=CWD msg=audit(1126138520.634:58):  cwd="/"
>>> type=PATH msg=audit(1126138520.634:58): item=0 
>>> name="/var/lib/dav/lockdb.dir" flags=310  inode=1006106 dev=03:07 
>>> mode=040700 ouid=48 ogid=48 rdev=00:00
>>>
>>>
>>>
>> try
>> chcon -R -t httpd_sys_script_rw_t /var/lib/dav
>>
> Daniel,
>
> Thank you, that worked nicely.   
> Is there also a type for writable directories that solves the next 
> problem?  This is creating and writing a file to bar to a directory 
> /var/www/html/dav:
>
> type=AVC msg=audit(1126183941.896:260): avc:  denied  { write } for  
> pid=20312 comm="httpd" name="dav" dev=hda7 ino=1011845 
> scontext=root:system_r:httpd_t 
> tcontext=system_u:object_r:httpd_sys_content_t tclass=dir
> type=AVC msg=audit(1126183941.896:260): avc:  denied  { add_name } 
> for  pid=20312 comm="httpd" name="a" scontext=root:system_r:httpd_t 
> tcontext=system_u:object_r:httpd_sys_content_t tclass=dir
> type=AVC msg=audit(1126183941.896:260): avc:  denied  { create } for  
> pid=20312 comm="httpd" name="a" scontext=root:system_r:httpd_t 
> tcontext=root:object_r:httpd_sys_content_t tclass=file
> type=SYSCALL msg=audit(1126183941.896:260): arch=40000003 syscall=5 
> success=yes exit=14 a0=94dca08 a1=241 a2=1b6 a3=94dce58 items=1 
> pid=20312 auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 
> egid=48 sgid=48 fsgid=48 comm="httpd" exe="/usr/sbin/httpd"
> type=CWD msg=audit(1126183941.896:260):  cwd="/"
> type=PATH msg=audit(1126183941.896:260): item=0 
> name="/var/www/html/dav/foo" flags=310  inode=1011845 dev=03:07 
> mode=040775 ouid=500 ogid=48 rdev=00:00
> type=AVC msg=audit(1126183941.896:261): avc:  denied  { write } for  
> pid=20312 comm="httpd" name="a" dev=hda7 ino=1011998 
> scontext=root:system_r:httpd_t 
> tcontext=root:object_r:httpd_sys_content_t tclass=file
> type=SYSCALL msg=audit(1126183941.896:261): arch=40000003 syscall=4 
> success=yes exit=28 a0=e a1=94ddb40 a2=1c a3=94dce58 items=0 pid=20312 
> auid=4294967295 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48 
> fsgid=48 comm="httpd" exe="/usr/sbin/httpd"
> type=AVC_PATH msg=audit(1126183941.896:261):  
> path="/var/www/html/dav/foo"
>
>
>
> Andrew

I would try the same thing.

chcon -R -t httpd_sys_script_rw_t  /var/www/html/dav


--