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tmpfiles: allow creation of named pipes with tmpfiles

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This commit is contained in:
Lennart Poettering 2011-07-12 03:56:56 +02:00
parent 97f73ffb04
commit ee17ee7c5c
3 changed files with 51 additions and 2 deletions
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2
TODO
View File

@ -28,8 +28,6 @@ Features:
* add conditions for file executability
* allow creating fifos with tmpfiles
* implement Register= switch in .socket units to enable registration
in Avahi, RPC and other socket registration services.

5
man/tmpfiles.d.xml
View File

@ -112,6 +112,11 @@ d /run/user 0755 root root 10d</programlisting>
<listitem><para>Create or empty a directory</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>p</varname></term>
<listitem><para>Create a named pipe (FIFO) if it doesn't exist yet</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>x</varname></term>
<listitem><para>Ignore a path

46
src/tmpfiles.c
View File

@ -56,6 +56,7 @@ enum {
TRUNCATE_FILE = 'F',
CREATE_DIRECTORY = 'd',
TRUNCATE_DIRECTORY = 'D',
CREATE_FIFO = 'p',
/* These ones take globs */
IGNORE_PATH = 'x',
@ -505,6 +506,48 @@ static int create_item(Item *i) {
}
break;
case CREATE_FIFO:
u = umask(0);
r = mkfifo(i->path, i->mode);
umask(u);
if (r < 0 && errno != EEXIST) {
log_error("Failed to create fifo %s: %m", i->path);
r = -errno;
goto finish;
}
if (stat(i->path, &st) < 0) {
log_error("stat(%s) failed: %m", i->path);
r = -errno;
goto finish;
}
if (!S_ISFIFO(st.st_mode)) {
log_error("%s is not a fifo.", i->path);
r = -EEXIST;
goto finish;
}
if (i->mode_set)
if (chmod(i->path, i->mode) < 0) {
log_error("chmod(%s) failed: %m", i->path);
r = -errno;
goto finish;
}
if (i->uid_set || i->gid_set)
if (chown(i->path,
i->uid_set ? i->uid : (uid_t) -1,
i->gid_set ? i->gid : (gid_t) -1) < 0) {
log_error("chown(%s) failed: %m", i->path);
r = -errno;
goto finish;
}
break;
}
if ((r = label_fix(i->path, false)) < 0)
@ -529,6 +572,7 @@ static int remove_item(Item *i, const char *instance) {
case CREATE_FILE:
case TRUNCATE_FILE:
case CREATE_DIRECTORY:
case CREATE_FIFO:
case IGNORE_PATH:
break;
@ -562,6 +606,7 @@ static int remove_item_glob(Item *i) {
case CREATE_FILE:
case TRUNCATE_FILE:
case CREATE_DIRECTORY:
case CREATE_FIFO:
case IGNORE_PATH:
break;
@ -689,6 +734,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
i->type != TRUNCATE_FILE &&
i->type != CREATE_DIRECTORY &&
i->type != TRUNCATE_DIRECTORY &&
i->type != CREATE_FIFO &&
i->type != IGNORE_PATH &&
i->type != REMOVE_PATH &&
i->type != RECURSIVE_REMOVE_PATH) {