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authorafg <afg984@gmail.com>2019-11-29 17:08:05 +0800
committerLennart Poettering <lennart@poettering.net>2019-11-29 14:42:27 +0100
commitc152a2ba54dc77322997e8f5e302518fe4b07e57 (patch)
tree7013dd759d4abc84b24742b3f0dfad064b193506
parentdd08aa6488543727375d7377505a5333bb9e6047 (diff)
nspawn: allow Capability=all in systemd.nspawn [EXEC] section
Just like --capability=all is allowed in the systemd-nspawn command line.
-rw-r--r--man/systemd.nspawn.xml3
-rw-r--r--src/nspawn/nspawn-settings.c16
2 files changed, 12 insertions, 7 deletions
diff --git a/man/systemd.nspawn.xml b/man/systemd.nspawn.xml
index 8f5590c73a..11df4623b4 100644
--- a/man/systemd.nspawn.xml
+++ b/man/systemd.nspawn.xml
@@ -189,7 +189,8 @@
<filename>/etc/systemd/nspawn/</filename> and
<filename>/run/system/nspawn/</filename> (see above). On the
other hand, <varname>DropCapability=</varname> takes effect in
- all cases.</para></listitem>
+ all cases. If the special value <literal>all</literal> is passed, all
+ capabilities are retained (or dropped).</para></listitem>
</varlistentry>
<varlistentry>
diff --git a/src/nspawn/nspawn-settings.c b/src/nspawn/nspawn-settings.c
index 3a99736813..5fb5b49bbc 100644
--- a/src/nspawn/nspawn-settings.c
+++ b/src/nspawn/nspawn-settings.c
@@ -275,13 +275,17 @@ int config_parse_capability(
if (r == 0)
break;
- r = capability_from_name(word);
- if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse capability, ignoring: %s", word);
- continue;
- }
+ if (streq(word, "all"))
+ u = (uint64_t) -1;
+ else {
+ r = capability_from_name(word);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse capability, ignoring: %s", word);
+ continue;
+ }
- u |= UINT64_C(1) << r;
+ u |= UINT64_C(1) << r;
+ }
}
if (u == 0)