nspawn: add audit caps to default set to keep

Due to the brokeness of much of the userspace audit code we cannot
really start too many systems without the audit caps set. To make nspawn
easier to use just add the audit caps by default.

To boot up containers successfully the kernel's auditing needs to be
turned off still (use "audit=0" on the kernel command line), but at
least no manual caps have to be passed anymore.

In the long run auditing will be fixed for containers and ve virtualized
properly at which time it should be safe to enable these caps anyway.

diff --git a/man/systemd-nspawn.xml b/man/systemd-nspawn.xml
index db2d417e49f83110d31a25ab741fdedb93668970..2939951a886a775427cc59d74430e580dcc8dfb8 100644 (file)
--- a/man/systemd-nspawn.xml
+++ b/man/systemd-nspawn.xml
@@ -227,8 +227,8 @@
                                 list of capability names, see
                                 <citerefentry><refentrytitle>capabilities</refentrytitle><manvolnum>7</manvolnum></citerefentry>
                                 for more information. Note that the
-                                following capabilities will be
-                                granted in any way: CAP_CHOWN,
+                                following capabilities will be granted
+                                in any way: CAP_CHOWN,
                                 CAP_DAC_OVERRIDE, CAP_DAC_READ_SEARCH,
                                 CAP_FOWNER, CAP_FSETID, CAP_IPC_OWNER,
                                 CAP_KILL, CAP_LEASE,
@@ -239,7 +239,9 @@
                                 CAP_SETUID, CAP_SYS_ADMIN,
                                 CAP_SYS_CHROOT, CAP_SYS_NICE,
                                 CAP_SYS_PTRACE, CAP_SYS_TTY_CONFIG,
-                                CAP_SYS_RESOURCE, CAP_SYS_BOOT.</para></listitem>
+                                CAP_SYS_RESOURCE, CAP_SYS_BOOT,
+                                CAP_AUDIT_WRITE,
+                                CAP_AUDIT_CONTROL.</para></listitem>
                         </varlistentry>
 
                         <varlistentry>

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 98b583d7479995828edef31524ade45ef51a8b75..62dc20d82414433f8b0485670b28e937a3630fe6 100644 (file)
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -96,7 +96,9 @@ static uint64_t arg_retain =
         (1ULL << CAP_SYS_PTRACE) |
         (1ULL << CAP_SYS_TTY_CONFIG) |
         (1ULL << CAP_SYS_RESOURCE) |
-        (1ULL << CAP_SYS_BOOT);
+        (1ULL << CAP_SYS_BOOT) |
+        (1ULL << CAP_AUDIT_WRITE) |
+        (1ULL << CAP_AUDIT_CONTROL);
 
 static int help(void) {