1gpg_agent_selinux(8) SELinux Policy gpg_agent gpg_agent_selinux(8)
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6 gpg_agent_selinux - Security Enhanced Linux Policy for the gpg_agent
7 processes
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10 Security-Enhanced Linux secures the gpg_agent processes via flexible
11 mandatory access control.
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13 The gpg_agent processes execute with the gpg_agent_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep gpg_agent_t
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24 The gpg_agent_t SELinux type can be entered via the gpg_agent_exec_t
25 file type.
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27 The default entrypoint paths for the gpg_agent_t domain are the follow‐
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30 /usr/bin/gpg-agent
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 gpg_agent policy is very flexible allowing users to setup their
40 gpg_agent processes in as secure a method as possible.
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42 The following process types are defined for gpg_agent:
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44 gpg_agent_t
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46 Note: semanage permissive -a gpg_agent_t can be used to make the
47 process type gpg_agent_t permissive. SELinux does not deny access to
48 permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
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53 SELinux policy is customizable based on least access required.
54 gpg_agent policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run gpg_agent with the tightest
56 access possible.
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60 If you want to deny any process from ptracing or debugging any other
61 processes, you must turn on the deny_ptrace boolean. Enabled by
62 default.
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64 setsebool -P deny_ptrace 1
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68 If you want to allow any process to mmap any file on system with
69 attribute file_type, you must turn on the domain_can_mmap_files bool‐
70 ean. Enabled by default.
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72 setsebool -P domain_can_mmap_files 1
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76 If you want to allow all domains write to kmsg_device, while kernel is
77 executed with systemd.log_target=kmsg parameter, you must turn on the
78 domain_can_write_kmsg boolean. Disabled by default.
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80 setsebool -P domain_can_write_kmsg 1
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84 If you want to allow all domains to use other domains file descriptors,
85 you must turn on the domain_fd_use boolean. Enabled by default.
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87 setsebool -P domain_fd_use 1
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91 If you want to allow all domains to have the kernel load modules, you
92 must turn on the domain_kernel_load_modules boolean. Disabled by
93 default.
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95 setsebool -P domain_kernel_load_modules 1
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99 If you want to allow all domains to execute in fips_mode, you must turn
100 on the fips_mode boolean. Enabled by default.
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102 setsebool -P fips_mode 1
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106 If you want to enable reading of urandom for all domains, you must turn
107 on the global_ssp boolean. Disabled by default.
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109 setsebool -P global_ssp 1
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113 If you want to support ecryptfs home directories, you must turn on the
114 use_ecryptfs_home_dirs boolean. Disabled by default.
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116 setsebool -P use_ecryptfs_home_dirs 1
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120 If you want to support fusefs home directories, you must turn on the
121 use_fusefs_home_dirs boolean. Disabled by default.
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123 setsebool -P use_fusefs_home_dirs 1
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127 If you want to support NFS home directories, you must turn on the
128 use_nfs_home_dirs boolean. Disabled by default.
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130 setsebool -P use_nfs_home_dirs 1
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134 If you want to support SAMBA home directories, you must turn on the
135 use_samba_home_dirs boolean. Disabled by default.
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137 setsebool -P use_samba_home_dirs 1
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142 The SELinux process type gpg_agent_t can manage files labeled with the
143 following file types. The paths listed are the default paths for these
144 file types. Note the processes UID still need to have DAC permissions.
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146 cifs_t
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149 ecryptfs_t
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151 /home/[^/]+/.Private(/.*)?
152 /home/[^/]+/.ecryptfs(/.*)?
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154 fusefs_t
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156 /var/run/user/[^/]*/gvfs
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158 gnome_home_type
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161 gpg_agent_tmp_t
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163 /home/[^/]+/.gnupg/log-socket
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165 gpg_secret_t
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167 /root/.gnupg(/.+)?
168 /etc/mail/spamassassin/sa-update-keys(/.*)?
169 /home/[^/]+/.gnupg(/.+)?
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171 nfs_t
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174 user_home_t
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176 /home/[^/]+/.+
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178 user_tmp_type
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180 all user tmp files
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184 SELinux requires files to have an extended attribute to define the file
185 type.
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187 You can see the context of a file using the -Z option to ls
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189 Policy governs the access confined processes have to these files.
190 SELinux gpg_agent policy is very flexible allowing users to setup their
191 gpg_agent processes in as secure a method as possible.
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193 STANDARD FILE CONTEXT
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195 SELinux defines the file context types for the gpg_agent, if you wanted
196 to store files with these types in a diffent paths, you need to execute
197 the semanage command to sepecify alternate labeling and then use
198 restorecon to put the labels on disk.
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200 semanage fcontext -a -t gpg_agent_tmp_t '/srv/mygpg_agent_con‐
201 tent(/.*)?'
202 restorecon -R -v /srv/mygpg_agent_content
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204 Note: SELinux often uses regular expressions to specify labels that
205 match multiple files.
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207 The following file types are defined for gpg_agent:
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211 gpg_agent_exec_t
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213 - Set files with the gpg_agent_exec_t type, if you want to transition
214 an executable to the gpg_agent_t domain.
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218 gpg_agent_tmp_t
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220 - Set files with the gpg_agent_tmp_t type, if you want to store gpg
221 agent temporary files in the /tmp directories.
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225 Note: File context can be temporarily modified with the chcon command.
226 If you want to permanently change the file context you need to use the
227 semanage fcontext command. This will modify the SELinux labeling data‐
228 base. You will need to use restorecon to apply the labels.
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232 semanage fcontext can also be used to manipulate default file context
233 mappings.
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235 semanage permissive can also be used to manipulate whether or not a
236 process type is permissive.
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238 semanage module can also be used to enable/disable/install/remove pol‐
239 icy modules.
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241 semanage boolean can also be used to manipulate the booleans
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244 system-config-selinux is a GUI tool available to customize SELinux pol‐
245 icy settings.
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249 This manual page was auto-generated using sepolicy manpage .
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253 selinux(8), gpg_agent(8), semanage(8), restorecon(8), chcon(1), sepol‐
254 icy(8) , setsebool(8)
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258gpg_agent 19-04-25 gpg_agent_selinux(8)