rpm_selinux(8)

1rpm_selinux(8)                SELinux Policy rpm                rpm_selinux(8)
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NAME

6       rpm_selinux - Security Enhanced Linux Policy for the rpm processes
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DESCRIPTION

9       Security-Enhanced  Linux  secures the rpm processes via flexible manda‐
10       tory access control.
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12       The rpm processes execute with the rpm_t SELinux type. You can check if
13       you  have  these processes running by executing the ps command with the
14       -Z qualifier.
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16       For example:
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18       ps -eZ | grep rpm_t
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ENTRYPOINTS

23       The rpm_t SELinux type can be entered via the  file_type,  unlabeled_t,
24       proc_type,  filesystem_type,  rpm_exec_t,  mtrr_device_t,  sysctl_type,
25       debuginfo_exec_t, rpm_script_exec_t file types.
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27       The default entrypoint paths for the rpm_t domain are the following:
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29       all files  on  the  system,  /usr/libexec/yumDBUSBackend.py,  /bin/rpm,
30       /usr/bin/rpm,      /usr/bin/yum,     /usr/sbin/pup,     /usr/bin/smart,
31       /usr/sbin/bcfg2, /usr/sbin/pirut, /usr/bin/apt-get,  /usr/sbin/up2date,
32       /usr/sbin/synaptic,       /usr/bin/apt-shell,      /usr/sbin/rhn_check,
33       /usr/sbin/rhnreg_ks,   /usr/bin/yum-builddep,    /usr/sbin/packagekitd,
34       /usr/sbin/yum-updatesd,   /usr/bin/package-cleanup,  /usr/libexec/pack‐
35       agekitd,   /usr/bin/fedora-rmdevelrpms,    /usr/bin/rpmdev-rmdevelrpms,
36       /usr/share/yumex/yum_childtask.py,   /usr/sbin/system-install-packages,
37       /usr/sbin/yum-complete-transaction, /usr/share/yumex/yumex-yum-backend,
38       /dev/cpu/mtrr, /usr/bin/debuginfo-install
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PROCESS TYPES

41       SELinux defines process types (domains) for each process running on the
42       system
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44       You can see the context of a process using the -Z option to ps
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46       Policy governs the access confined processes have  to  files.   SELinux
47       rpm policy is very flexible allowing users to setup their rpm processes
48       in as secure a method as possible.
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50       The following process types are defined for rpm:
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52       rpm_t, rpm_script_t
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54       Note: semanage permissive -a rpm_t can be used to make the process type
55       rpm_t  permissive.  SELinux  does not deny access to permissive process
56       types, but the AVC (SELinux denials) messages are still generated.
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BOOLEANS

60       SELinux policy is customizable based on  least  access  required.   rpm
61       policy is extremely flexible and has several booleans that allow you to
62       manipulate the policy and run rpm with the tightest access possible.
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66       If you want to allow all daemons the ability to  read/write  terminals,
67       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
68       default.
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70       setsebool -P allow_daemons_use_tty 1
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74       If you want to allow all domains to use other domains file descriptors,
75       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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77       setsebool -P allow_domain_fd_use 1
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81       If  you  want to allow unconfined executables to make their heap memory
82       executable.  Doing this is a really  bad  idea.  Probably  indicates  a
83       badly  coded  executable, but could indicate an attack. This executable
84       should be reported in bugzilla, you must  turn  on  the  allow_execheap
85       boolean. Disabled by default.
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87       setsebool -P allow_execheap 1
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91       If  you  want to allow unconfined executables to map a memory region as
92       both executable and writable, this  is  dangerous  and  the  executable
93       should  be  reported  in  bugzilla), you must turn on the allow_execmem
94       boolean. Enabled by default.
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96       setsebool -P allow_execmem 1
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100       If you want to  allow  all  unconfined  executables  to  use  libraries
101       requiring  text  relocation  that are not labeled textrel_shlib_t), you
102       must turn on the allow_execmod boolean. Enabled by default.
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104       setsebool -P allow_execmod 1
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108       If you want to allow unconfined executables to make  their  stack  exe‐
109       cutable.   This  should  never, ever be necessary. Probably indicates a
110       badly coded executable, but could indicate an attack.  This  executable
111       should  be  reported in bugzilla), you must turn on the allow_execstack
112       boolean. Enabled by default.
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114       setsebool -P allow_execstack 1
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118       If you want to allow confined applications to run  with  kerberos,  you
119       must turn on the allow_kerberos boolean. Enabled by default.
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121       setsebool -P allow_kerberos 1
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125       If  you want to allow sysadm to debug or ptrace all processes, you must
126       turn on the allow_ptrace boolean. Disabled by default.
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128       setsebool -P allow_ptrace 1
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132       If you want to allow system to run with  NIS,  you  must  turn  on  the
133       allow_ypbind boolean. Disabled by default.
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135       setsebool -P allow_ypbind 1
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139       If  you  want to allow all domains to have the kernel load modules, you
140       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
141       default.
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143       setsebool -P domain_kernel_load_modules 1
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147       If you want to allow all domains to execute in fips_mode, you must turn
148       on the fips_mode boolean. Enabled by default.
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150       setsebool -P fips_mode 1
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154       If you want to enable reading of urandom for all domains, you must turn
155       on the global_ssp boolean. Disabled by default.
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157       setsebool -P global_ssp 1
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161       If  you  want to allow certain domains to map low memory in the kernel,
162       you must turn on the mmap_low_allowed boolean. Disabled by default.
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164       setsebool -P mmap_low_allowed 1
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168       If you want to allow confined applications to use nscd  shared  memory,
169       you must turn on the nscd_use_shm boolean. Enabled by default.
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171       setsebool -P nscd_use_shm 1
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175       If  you want to boolean to determine whether the system permits loading
176       policy, setting enforcing mode, and changing boolean values.  Set  this
177       to  true  and  you  have to reboot to set it back, you must turn on the
178       secure_mode_policyload boolean. Disabled by default.
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180       setsebool -P secure_mode_policyload 1
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184       If you want to support X userspace object manager, you must turn on the
185       xserver_object_manager boolean. Disabled by default.
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187       setsebool -P xserver_object_manager 1
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MANAGED FILES

192       The  SELinux  process type rpm_t can manage files labeled with the fol‐
193       lowing file types.  The paths listed are the default  paths  for  these
194       file types.  Note the processes UID still need to have DAC permissions.
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196       file_type
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198            all files on the system
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FILE CONTEXTS

202       SELinux requires files to have an extended attribute to define the file
203       type.
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205       You can see the context of a file using the -Z option to ls
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207       Policy governs the access  confined  processes  have  to  these  files.
208       SELinux  rpm  policy is very flexible allowing users to setup their rpm
209       processes in as secure a method as possible.
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211       STANDARD FILE CONTEXT
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213       SELinux defines the file context types for the rpm, if  you  wanted  to
214       store  files  with  these types in a diffent paths, you need to execute
215       the semanage command  to  sepecify  alternate  labeling  and  then  use
216       restorecon to put the labels on disk.
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218       semanage fcontext -a -t rpm_var_run_t '/srv/myrpm_content(/.*)?'
219       restorecon -R -v /srv/myrpm_content
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221       Note:  SELinux  often  uses  regular expressions to specify labels that
222       match multiple files.
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224       The following file types are defined for rpm:
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228       rpm_exec_t
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230       - Set files with the rpm_exec_t type, if you want to transition an exe‐
231       cutable to the rpm_t domain.
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234       Paths:
235            /usr/libexec/yumDBUSBackend.py,       /bin/rpm,      /usr/bin/rpm,
236            /usr/bin/yum,  /usr/sbin/pup,   /usr/bin/smart,   /usr/sbin/bcfg2,
237            /usr/sbin/pirut,        /usr/bin/apt-get,       /usr/sbin/up2date,
238            /usr/sbin/synaptic,    /usr/bin/apt-shell,    /usr/sbin/rhn_check,
239            /usr/sbin/rhnreg_ks, /usr/bin/yum-builddep, /usr/sbin/packagekitd,
240            /usr/sbin/yum-updatesd,                  /usr/bin/package-cleanup,
241            /usr/libexec/packagekitd,             /usr/bin/fedora-rmdevelrpms,
242            /usr/bin/rpmdev-rmdevelrpms,    /usr/share/yumex/yum_childtask.py,
243            /usr/sbin/system-install-packages, /usr/sbin/yum-complete-transac‐
244            tion, /usr/share/yumex/yumex-yum-backend
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247       rpm_file_t
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249       - Set files with the rpm_file_t type, if you want to treat the files as
250       rpm content.
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254       rpm_log_t
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256       -  Set  files with the rpm_log_t type, if you want to treat the data as
257       rpm log data, usually stored under the /var/log directory.
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261       rpm_script_exec_t
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263       - Set files with the rpm_script_exec_t type, if you want to  transition
264       an executable to the rpm_script_t domain.
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268       rpm_script_tmp_t
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270       -  Set  files  with the rpm_script_tmp_t type, if you want to store rpm
271       script temporary files in the /tmp directories.
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275       rpm_script_tmpfs_t
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277       - Set files with the rpm_script_tmpfs_t type, if you want to store  rpm
278       script files on a tmpfs file system.
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282       rpm_tmp_t
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284       - Set files with the rpm_tmp_t type, if you want to store rpm temporary
285       files in the /tmp directories.
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289       rpm_tmpfs_t
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291       - Set files with the rpm_tmpfs_t type, if you want to store  rpm  files
292       on a tmpfs file system.
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296       rpm_var_cache_t
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298       -  Set  files  with  the rpm_var_cache_t type, if you want to store the
299       files under the /var/cache directory.
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302       Paths:
303            /var/cache/yum(/.*)?, /var/spool/up2date(/.*)?
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306       rpm_var_lib_t
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308       - Set files with the rpm_var_lib_t type, if you want to store  the  rpm
309       files under the /var/lib directory.
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312       Paths:
313            /var/lib/rpm(/.*)?,      /var/lib/yum(/.*)?,     /var/lib/alterna‐
314            tives(/.*)?
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317       rpm_var_run_t
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319       - Set files with the rpm_var_run_t type, if you want to store  the  rpm
320       files under the /run or /var/run directory.
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323       Paths:
324            /var/run/yum.*, /var/run/PackageKit(/.*)?
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327       Note:  File context can be temporarily modified with the chcon command.
328       If you want to permanently change the file context you need to use  the
329       semanage fcontext command.  This will modify the SELinux labeling data‐
330       base.  You will need to use restorecon to apply the labels.
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COMMANDS

334       semanage fcontext can also be used to manipulate default  file  context
335       mappings.
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337       semanage  permissive  can  also  be used to manipulate whether or not a
338       process type is permissive.
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340       semanage module can also be used to enable/disable/install/remove  pol‐
341       icy modules.
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343       semanage boolean can also be used to manipulate the booleans
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346       system-config-selinux is a GUI tool available to customize SELinux pol‐
347       icy settings.
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AUTHOR

351       This manual page was auto-generated using sepolicy manpage .
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