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Merge pull request #23962 from keszybz/taint-flag-support-ended
Taint flag "support-ended"
This commit is contained in:
Luca Boccassi
GitHub
commit
8924cbf34a
4
README
4
README
@ -359,7 +359,7 @@ WARNINGS and TAINT FLAGS:
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will break if /usr is on a separate late-mounted partition, many of its
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dependencies very likely will break sooner or later in one form or
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another. For example, udev rules tend to refer to binaries in /usr,
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binaries that link to libraries in /usr or binaries that refer to data
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binaries that link to libraries in /usr, or binaries that refer to data
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files in /usr. Since these breakages are not always directly visible,
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systemd will warn about this. Such setups are not really supported by
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the basic set of Linux OS components. Taint flag 'split-usr' will be
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@ -393,6 +393,8 @@ WARNINGS and TAINT FLAGS:
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busctl get-property org.freedesktop.systemd1 /org/freedesktop/systemd1 org.freedesktop.systemd1.Manager Tainted
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See org.freedesktop.systemd1(5) for more information.
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VALGRIND:
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To run systemd under valgrind, compile with meson option
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-Dvalgrind=true and have valgrind development headers installed
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@ -1494,21 +1494,96 @@ node /org/freedesktop/systemd1 {
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it is not part of the public API.</para>
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<para><varname>Features</varname> encodes the features that have been enabled and disabled for this
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build. Enabled options are prefixed with +, disabled options with -.</para>
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build. Enabled options are prefixed with <literal>+</literal>, disabled options with
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<literal>-</literal>.</para>
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<para><varname>Tainted</varname> encodes a couple of taint flags as a colon-separated list. When
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systemd detects it is running on a system with certain problems, it will set an appropriate taint
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flag. Taints may be used to lower the chance of bogus bug reports. The following taints are currently
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known: <literal>split-usr</literal>, <literal>mtab-not-symlink</literal>,
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<literal>cgroups-missing</literal>, <literal>local-hwclock</literal>. <literal>split-usr</literal> is
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set if <filename>/usr/</filename> is not pre-mounted when systemd is first invoked. See
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<ulink url="https://www.freedesktop.org/wiki/Software/systemd/separate-usr-is-broken">
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Booting Without /usr is Broken</ulink>
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for details why this is bad. <literal>mtab-not-symlink</literal> indicates that
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<filename>/etc/mtab</filename> is not a symlink to <filename>/proc/self/mounts</filename> as
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required. <literal>cgroups-missing</literal> indicates that control groups have not been enabled in the
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kernel. <literal>local-hwclock</literal> indicates that the local RTC is configured to be in local time
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rather than UTC.</para>
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<para><varname>Tainted</varname> encodes taint flags as a colon-separated list. When systemd detects it
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is running on a system with a certain problem, it will set an appropriate taint flag. Taints may be
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used to lower the chance of bogus bug reports. The following taints are currently known:</para>
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<variablelist>
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<varlistentry>
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<term><literal>split-usr</literal></term>
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<listitem><para><filename>/usr/</filename> was not available when systemd was first invoked. It
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must either be part of the root file system, or it must be mounted before
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<command>systemd</command> is invoked. See
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<ulink url="https://www.freedesktop.org/wiki/Software/systemd/separate-usr-is-broken">
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Booting Without /usr is Broken</ulink> for details why this is bad.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>unmerged-usr</literal></term>
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<listitem><para><filename>/bin</filename>, <filename>/sbin</filename> and
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<filename>/lib*</filename> are not symlinks to their counterparts under <filename>/usr/</filename>.
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For more information on this issue consult
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<ulink url="https://www.freedesktop.org/wiki/Software/systemd/TheCaseForTheUsrMerge">
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The Case for the /usr Merge
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</ulink>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>cgroups-missing</literal></term>
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<listitem><para>Support for cgroups is unavailable.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>cgroupsv1</literal></term>
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<listitem><para>The system is using the old cgroup hierarchy.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>local-hwclock</literal></term>
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<listitem><para>The local hardware clock (RTC) is configured to be in local time rather than
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UTC.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>support-ended</literal></term>
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<listitem><para>The system is running past the end of support declared by the vendor. See the
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description of <varname>SUPPORT_END=</varname> in
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<citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>old-kernel</literal></term>
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<listitem><para>The system is running a kernel version that is older than the minimum supported by
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this version of systemd.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>var-run-bad</literal></term>
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<listitem><para><filename>/run/</filename> does not exist or <filename>/var/run</filename> is not a
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symlink to <filename>/run/</filename>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>overflowuid-not-65534</literal></term>
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<term><literal>overflowgid-not-65534</literal></term>
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<listitem><para>The kernel overflow UID or GID have a value other than 65534.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>short-uid-range</literal></term>
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<term><literal>short-gid-range</literal></term>
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<listitem><para>The UID or GID range assigned to the running systemd instance covers less than
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0…65534.</para></listitem>
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</varlistentry>
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<!-- mtab-not-symlink was removed in b492ce8a22d4527c1372b2d3fbd580627d70c917 -->
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</variablelist>
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<para><varname>FirmwareTimestamp</varname>, <varname>FirmwareTimestampMonotonic</varname>,
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<varname>LoaderTimestamp</varname>, <varname>LoaderTimestampMonotonic</varname>,
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@ -355,9 +355,12 @@
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<listitem><para>The date at which support for this version of the OS ends. (What exactly "lack of
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support" means varies between vendors, but generally users should assume that updates, including
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security fixes, will not be provided.) The value is a date in the format
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<literal>YYYY-MM-DD</literal>, and specifies the last day on which support <emphasis>is</emphasis>
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provided.</para></listitem>
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security fixes, will not be provided.) The value is a date in the ISO 8601 format
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<literal>YYYY-MM-DD</literal>, and specifies the first day on which support <emphasis>is
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not</emphasis> provided.</para>
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<para>For example, <literal>SUPPORT_END=2001-01-01</literal> means that the system was supported
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until the end of the last day of the previous millenium.</para></listitem>
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</varlistentry>
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<varlistentry>
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@ -317,3 +317,38 @@ int load_extension_release_pairs(const char *root, const char *extension, char *
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return load_env_file_pairs(f, p, ret);
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}
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int os_release_support_ended(const char *support_end, bool quiet) {
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_cleanup_free_ char *_support_end_alloc = NULL;
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int r;
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if (!support_end) {
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/* If the caller has the variably handy, they can pass it in. If not, we'll read it
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* ourselves. */
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r = parse_os_release(NULL,
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"SUPPORT_END", &_support_end_alloc);
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if (r < 0)
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return log_full_errno((r == -ENOENT || quiet) ? LOG_DEBUG : LOG_WARNING, r,
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"Failed to read os-release file, ignoring: %m");
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if (!_support_end_alloc)
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return false; /* no end date defined */
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support_end = _support_end_alloc;
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}
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struct tm tm = {};
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const char *k = strptime(support_end, "%Y-%m-%d", &tm);
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if (!k || *k)
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return log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING, SYNTHETIC_ERRNO(EINVAL),
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"Failed to parse SUPPORT_END= in os-release file, ignoring: %m");
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time_t eol = mktime(&tm);
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if (eol == (time_t) -1)
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return log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING, SYNTHETIC_ERRNO(EINVAL),
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"Failed to convert SUPPORT_END= in os-release file, ignoring: %m");
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usec_t ts = now(CLOCK_REALTIME);
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return DIV_ROUND_UP(ts, USEC_PER_SEC) > (usec_t) eol;
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}
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@ -31,3 +31,5 @@ int _parse_os_release(const char *root, ...) _sentinel_;
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int load_extension_release_pairs(const char *root, const char *extension, char ***ret);
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int load_os_release_pairs(const char *root, char ***ret);
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int load_os_release_pairs_with_prefix(const char *root, const char *prefix, char ***ret);
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int os_release_support_ended(const char *support_end, bool quiet);
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@ -1312,29 +1312,46 @@ static int enforce_syscall_archs(Set *archs) {
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return 0;
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}
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static int status_welcome(void) {
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_cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
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static int os_release_status(void) {
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_cleanup_free_ char *pretty_name = NULL, *name = NULL, *version = NULL,
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*ansi_color = NULL, *support_end = NULL;
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int r;
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if (!show_status_on(arg_show_status))
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return 0;
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r = parse_os_release(NULL,
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"PRETTY_NAME", &pretty_name,
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"ANSI_COLOR", &ansi_color);
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"NAME", &name,
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"VERSION", &version,
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"ANSI_COLOR", &ansi_color,
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"SUPPORT_END", &support_end);
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if (r < 0)
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log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
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"Failed to read os-release file, ignoring: %m");
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return log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
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"Failed to read os-release file, ignoring: %m");
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if (log_get_show_color())
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return status_printf(NULL, 0,
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"\nWelcome to \x1B[%sm%s\x1B[0m!\n",
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isempty(ansi_color) ? "1" : ansi_color,
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isempty(pretty_name) ? "Linux" : pretty_name);
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else
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return status_printf(NULL, 0,
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"\nWelcome to %s!\n",
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isempty(pretty_name) ? "Linux" : pretty_name);
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const char *label = empty_to_null(pretty_name) ?: empty_to_null(name) ?: "Linux";
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if (show_status_on(arg_show_status)) {
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if (log_get_show_color())
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status_printf(NULL, 0,
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"\nWelcome to \x1B[%sm%s\x1B[0m!\n",
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empty_to_null(ansi_color) ?: "1",
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label);
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else
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status_printf(NULL, 0,
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"\nWelcome to %s!\n",
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label);
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}
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if (support_end && os_release_support_ended(support_end, false) > 0)
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/* pretty_name may include the version already, so we'll print the version only if we
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* have it and we're not using pretty_name. */
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status_printf(ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL, 0,
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"This OS version (%s%s%s) is past its end-of-support date (%s)",
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label,
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(pretty_name || !version) ? "" : " version ",
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(pretty_name || !version) ? "" : version,
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support_end);
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return 0;
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}
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static int write_container_id(void) {
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@ -2100,7 +2117,7 @@ static int initialize_runtime(
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return r;
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}
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status_welcome();
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(void) os_release_status();
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(void) hostname_setup(true);
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/* Force transient machine-id on first boot. */
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machine_id_setup(NULL, first_boot, arg_machine_id, NULL);
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@ -61,6 +61,7 @@
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#include "manager-serialize.h"
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#include "memory-util.h"
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#include "mkdir-label.h"
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#include "os-util.h"
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#include "parse-util.h"
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#include "path-lookup.h"
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#include "path-util.h"
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@ -4475,7 +4476,7 @@ char* manager_taint_string(const Manager *m) {
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assert(m);
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const char* stage[12] = {};
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const char* stage[13] = {};
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size_t n = 0;
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if (m->taint_usr)
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@ -4494,6 +4495,9 @@ char* manager_taint_string(const Manager *m) {
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if (clock_is_localtime(NULL) > 0)
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stage[n++] = "local-hwclock";
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if (os_release_support_ended(NULL, true) > 0)
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stage[n++] = "support-ended";
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_cleanup_free_ char *destination = NULL;
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if (readlink_malloc("/var/run", &destination) < 0 ||
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!PATH_IN_SET(destination, "../run", "/run"))
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@ -72,4 +72,18 @@ TEST(load_os_release_pairs) {
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assert_se(unsetenv("SYSTEMD_OS_RELEASE") == 0);
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}
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TEST(os_release_support_ended) {
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int r;
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assert_se(os_release_support_ended("1999-01-01", false) == true);
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assert_se(os_release_support_ended("2037-12-31", false) == false);
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assert_se(os_release_support_ended("-1-1-1", true) == -EINVAL);
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r = os_release_support_ended(NULL, false);
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if (r < 0)
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log_info_errno(r, "Failed to check host: %m");
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else
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log_info_errno(r, "Host is supported: %s", yes_no(!r));
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}
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DEFINE_TEST_MAIN(LOG_DEBUG);
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