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-rw-r--r--Makefile.am7
-rw-r--r--man/tmpfiles.d.xml57
-rw-r--r--src/test/test-strv.c10
-rw-r--r--src/tmpfiles/tmpfiles.c51
4 files changed, 97 insertions, 28 deletions
diff --git a/Makefile.am b/Makefile.am
index b69d66da1..af12fa591 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1542,12 +1542,15 @@ EXTRA_DIST += \
# ------------------------------------------------------------------------------
if ENABLE_TMPFILES
systemd_tmpfiles_SOURCES = \
- src/tmpfiles/tmpfiles.c
+ src/tmpfiles/tmpfiles.c \
+ src/shared/specifier.c \
+ src/shared/specifier.h
systemd_tmpfiles_LDADD = \
libsystemd-label.la \
libsystemd-shared.la \
- libsystemd-capability.la
+ libsystemd-capability.la \
+ libsystemd-id128-internal.la
rootbin_PROGRAMS += \
systemd-tmpfiles
diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml
index cdc87c919..1cf899226 100644
--- a/man/tmpfiles.d.xml
+++ b/man/tmpfiles.d.xml
@@ -67,7 +67,7 @@
<title>Configuration Format</title>
<para>Each configuration file shall be named in the
- style of <filename>&lt;program&gt;.conf</filename>.
+ style of <filename>&lt;package&gt;.conf</filename>.
Files in <filename>/etc/</filename> override files
with the same name in <filename>/usr/lib/</filename>
and <filename>/run/</filename>. Files in
@@ -100,8 +100,12 @@
d /run/user 0755 root root 10d -
L /tmp/foobar - - - - /dev/null</programlisting>
+
<refsect2>
<title>Type</title>
+
+ <para>The following line types are understood:</para>
+
<variablelist>
<varlistentry>
<term><varname>f</varname></term>
@@ -234,6 +238,57 @@ L /tmp/foobar - - - - /dev/null</programlisting>
</refsect2>
<refsect2>
+ <title>Path</title>
+
+ <para>The file system path specification supports simple specifier
+ expansion. The following expansions are
+ understood:</para>
+
+ <table>
+ <title>Specifiers available</title>
+ <tgroup cols='3' align='left' colsep='1' rowsep='1'>
+ <colspec colname="spec" />
+ <colspec colname="mean" />
+ <colspec colname="detail" />
+ <thead>
+ <row>
+ <entry>Specifier</entry>
+ <entry>Meaning</entry>
+ <entry>Details</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry><literal>%m</literal></entry>
+ <entry>Machine ID</entry>
+ <entry>The machine ID of the running system, formatted as string. See <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
+ </row>
+ <row>
+ <entry><literal>%b</literal></entry>
+ <entry>Boot ID</entry>
+ <entry>The boot ID of the running system, formatted as string. See <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> for more information.</entry>
+ </row>
+ <row>
+ <entry><literal>%H</literal></entry>
+ <entry>Host name</entry>
+ <entry>The hostname of the running system.</entry>
+ </row>
+ <row>
+ <entry><literal>%v</literal></entry>
+ <entry>Kernel release</entry>
+ <entry>Identical to <command>uname -r</command> output.</entry>
+ </row>
+ <row>
+ <entry><literal>%%</literal></entry>
+ <entry>Escaped %</entry>
+ <entry>Single percent sign.</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </refsect2>
+
+ <refsect2>
<title>Mode</title>
<para>The file access mode to use when
diff --git a/src/test/test-strv.c b/src/test/test-strv.c
index 6513d2e07..c3d536d05 100644
--- a/src/test/test-strv.c
+++ b/src/test/test-strv.c
@@ -27,19 +27,19 @@
#include "strv.h"
static void test_specifier_printf(void) {
- _cleanup_free_ char *w = NULL;
- int r;
-
- const Specifier table[] = {
+ static const Specifier table[] = {
{ 'a', specifier_string, (char*) "AAAA" },
{ 'b', specifier_string, (char*) "BBBB" },
{ 'm', specifier_machine_id, NULL },
{ 'B', specifier_boot_id, NULL },
{ 'H', specifier_host_name, NULL },
{ 'v', specifier_kernel_release, NULL },
- { 0, NULL, NULL }
+ {}
};
+ _cleanup_free_ char *w = NULL;
+ int r;
+
r = specifier_printf("xxx a=%a b=%b yyy", table, NULL, &w);
assert_se(r >= 0);
assert_se(w);
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 5eca82ad2..fb25b77b2 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -51,6 +51,7 @@
#include "set.h"
#include "conf-files.h"
#include "capability.h"
+#include "specifier.h"
/* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates
* them in the file system. This is intended to be used to create
@@ -1038,10 +1039,19 @@ static bool should_include_path(const char *path) {
}
static int parse_line(const char *fname, unsigned line, const char *buffer) {
+
+ static const Specifier specifier_table[] = {
+ { 'm', specifier_machine_id, NULL },
+ { 'b', specifier_boot_id, NULL },
+ { 'H', specifier_host_name, NULL },
+ { 'v', specifier_kernel_release, NULL },
+ {}
+ };
+
_cleanup_item_free_ Item *i = NULL;
Item *existing;
_cleanup_free_ char
- *mode = NULL, *user = NULL, *group = NULL, *age = NULL;
+ *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
char type;
Hashmap *h;
int r, n = -1;
@@ -1050,14 +1060,10 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
assert(line >= 1);
assert(buffer);
- i = new0(Item, 1);
- if (!i)
- return log_oom();
-
r = sscanf(buffer,
"%c %ms %ms %ms %ms %ms %n",
&type,
- &i->path,
+ &path,
&mode,
&user,
&group,
@@ -1068,6 +1074,16 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
return -EIO;
}
+ i = new0(Item, 1);
+ if (!i)
+ return log_oom();
+
+ r = specifier_printf(path, specifier_table, NULL, &i->path);
+ if (r < 0) {
+ log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path);
+ return r;
+ }
+
if (n >= 0) {
n += strspn(buffer+n, WHITESPACE);
if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) {
@@ -1307,11 +1323,12 @@ static int parse_argv(int argc, char *argv[]) {
}
static int read_config_file(const char *fn, bool ignore_enoent) {
- FILE *f;
- unsigned v = 0;
- int r;
+ _cleanup_fclose_ FILE *f = NULL;
+ char line[LINE_MAX];
Iterator iterator;
+ unsigned v = 0;
Item *i;
+ int r;
assert(fn);
@@ -1324,23 +1341,19 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
return r;
}
- log_debug("apply: %s\n", fn);
- for (;;) {
- char line[LINE_MAX], *l;
+ FOREACH_LINE(line, f, break) {
+ char *l;
int k;
- if (!(fgets(line, sizeof(line), f)))
- break;
-
v++;
l = strstrip(line);
if (*l == '#' || *l == 0)
continue;
- if ((k = parse_line(fn, v, l)) < 0)
- if (r == 0)
- r = k;
+ k = parse_line(fn, v, l);
+ if (k < 0 && r == 0)
+ r = k;
}
/* we have to determine age parameter for each entry of type X */
@@ -1377,8 +1390,6 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
r = -EIO;
}
- fclose(f);
-
return r;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-27 12:25:05 +0000