1avahi_selinux(8) SELinux Policy avahi avahi_selinux(8)
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6 avahi_selinux - Security Enhanced Linux Policy for the avahi processes
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9 Security-Enhanced Linux secures the avahi processes via flexible manda‐
10 tory access control.
11 The avahi processes execute with the avahi_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
15 For example:
17 ps -eZ | grep avahi_t
19
23 The avahi_t SELinux type can be entered via the avahi_exec_t file type.
24 The default entrypoint paths for the avahi_t domain are the following:
26 /usr/sbin/avahi-daemon, /usr/sbin/avahi-autoipd, /usr/sbin/avahi-
28 dnsconfd
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31 SELinux defines process types (domains) for each process running on the
32 system
33 You can see the context of a process using the -Z option to ps
35 Policy governs the access confined processes have to files. SELinux
37 avahi policy is very flexible allowing users to setup their avahi pro‐
38 cesses in as secure a method as possible.
39 The following process types are defined for avahi:
41 avahi_t
43 Note: semanage permissive -a avahi_t can be used to make the process
45 type avahi_t permissive. SELinux does not deny access to permissive
46 process types, but the AVC (SELinux denials) messages are still gener‐
47 ated.
48
51 SELinux policy is customizable based on least access required. avahi
52 policy is extremely flexible and has several booleans that allow you to
53 manipulate the policy and run avahi with the tightest access possible.
54 If you want to allow all domains to execute in fips_mode, you must turn
58 on the fips_mode boolean. Enabled by default.
59 setsebool -P fips_mode 1
61 If you want to allow Apache to communicate with avahi service via dbus,
65 you must turn on the httpd_dbus_avahi boolean. Enabled by default.
66 setsebool -P httpd_dbus_avahi 1
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72 The SELinux process type avahi_t can manage files labeled with the fol‐
73 lowing file types. The paths listed are the default paths for these
74 file types. Note the processes UID still need to have DAC permissions.
75 avahi_var_lib_t
77 /var/lib/avahi-autoipd(/.*)?
79 avahi_var_run_t
81 /var/run/avahi-daemon(/.*)?
83 cluster_conf_t
85 /etc/cluster(/.*)?
87 cluster_var_lib_t
89 /var/lib/pcsd(/.*)?
91 /var/lib/cluster(/.*)?
92 /var/lib/openais(/.*)?
93 /var/lib/pengine(/.*)?
94 /var/lib/corosync(/.*)?
95 /usr/lib/heartbeat(/.*)?
96 /var/lib/heartbeat(/.*)?
97 /var/lib/pacemaker(/.*)?
98 cluster_var_run_t
100 /var/run/crm(/.*)?
102 /var/run/cman_.*
103 /var/run/rsctmp(/.*)?
104 /var/run/aisexec.*
105 /var/run/heartbeat(/.*)?
106 /var/run/corosync-qnetd(/.*)?
107 /var/run/corosync-qdevice(/.*)?
108 /var/run/corosync.pid
109 /var/run/cpglockd.pid
110 /var/run/rgmanager.pid
111 /var/run/cluster/rgmanager.sk
112 root_t
114 /sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
116 /
117 /initrd
118
121 SELinux requires files to have an extended attribute to define the file
122 type.
123 You can see the context of a file using the -Z option to ls
125 Policy governs the access confined processes have to these files.
127 SELinux avahi policy is very flexible allowing users to setup their
128 avahi processes in as secure a method as possible.
129 STANDARD FILE CONTEXT
131 SELinux defines the file context types for the avahi, if you wanted to
133 store files with these types in a diffent paths, you need to execute
134 the semanage command to sepecify alternate labeling and then use
135 restorecon to put the labels on disk.
136 semanage fcontext -a -t avahi_unit_file_t '/srv/myavahi_content(/.*)?'
138 restorecon -R -v /srv/myavahi_content
139 Note: SELinux often uses regular expressions to specify labels that
141 match multiple files.
142 The following file types are defined for avahi:
144 avahi_exec_t
148 - Set files with the avahi_exec_t type, if you want to transition an
150 executable to the avahi_t domain.
151 Paths:
154 /usr/sbin/avahi-daemon, /usr/sbin/avahi-autoipd, /usr/sbin/avahi-
155 dnsconfd
156 avahi_initrc_exec_t
159 - Set files with the avahi_initrc_exec_t type, if you want to transi‐
161 tion an executable to the avahi_initrc_t domain.
162 avahi_unit_file_t
166 - Set files with the avahi_unit_file_t type, if you want to treat the
168 files as avahi unit content.
169 avahi_var_lib_t
173 - Set files with the avahi_var_lib_t type, if you want to store the
175 avahi files under the /var/lib directory.
176 avahi_var_run_t
180 - Set files with the avahi_var_run_t type, if you want to store the
182 avahi files under the /run or /var/run directory.
183 Note: File context can be temporarily modified with the chcon command.
187 If you want to permanently change the file context you need to use the
188 semanage fcontext command. This will modify the SELinux labeling data‐
189 base. You will need to use restorecon to apply the labels.
190
193 semanage fcontext can also be used to manipulate default file context
194 mappings.
195 semanage permissive can also be used to manipulate whether or not a
197 process type is permissive.
198 semanage module can also be used to enable/disable/install/remove pol‐
200 icy modules.
201 semanage boolean can also be used to manipulate the booleans
203 system-config-selinux is a GUI tool available to customize SELinux pol‐
206 icy settings.
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210 This manual page was auto-generated using sepolicy manpage .
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214 selinux(8), avahi(8), semanage(8), restorecon(8), chcon(1), sepol‐
215 icy(8), setsebool(8)
216avahi 21-03-26 avahi_selinux(8)