#include <sys/param.h>
#include <glob.h>
#include <fnmatch.h>
+#include <sys/capability.h>
#include "log.h"
#include "util.h"
+#include "macro.h"
#include "mkdir.h"
#include "path-util.h"
#include "strv.h"
#include "label.h"
#include "set.h"
#include "conf-files.h"
+#include "capability.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
"/run/tmpfiles.d",
"/usr/local/lib/tmpfiles.d",
"/usr/lib/tmpfiles.d",
+#ifdef HAVE_SPLIT_USR
+ "/lib/tmpfiles.d",
+#endif
NULL
};
sub_path = NULL;
if (asprintf(&sub_path, "%s/%s", p, dent->d_name) < 0) {
- log_error("Out of memory");
- r = -ENOMEM;
+ r = log_oom();
goto finish;
}
return -errno;
}
- return label_fix(path, false);
+ return label_fix(path, false, false);
+}
+
+static int write_one_file(Item *i, const char *path) {
+ int r, e, fd, flags;
+ struct stat st;
+ mode_t u;
+
+ flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
+ i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
+
+ u = umask(0);
+ label_context_set(path, S_IFREG);
+ fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
+ e = errno;
+ label_context_clear();
+ umask(u);
+ errno = e;
+
+ if (fd < 0) {
+ if (i->type == WRITE_FILE && errno == ENOENT)
+ return 0;
+
+ log_error("Failed to create file %s: %m", path);
+ return -errno;
+ }
+
+ if (i->argument) {
+ ssize_t n;
+ size_t l;
+ _cleanup_free_ char *unescaped;
+
+ unescaped = cunescape(i->argument);
+ if (unescaped == NULL)
+ return log_oom();
+
+ l = strlen(unescaped);
+ n = write(fd, unescaped, l);
+
+ if (n < 0 || (size_t) n < l) {
+ log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write");
+ close_nointr_nofail(fd);
+ return n < 0 ? n : -EIO;
+ }
+ }
+
+ close_nointr_nofail(fd);
+
+ if (stat(path, &st) < 0) {
+ log_error("stat(%s) failed: %m", path);
+ return -errno;
+ }
+
+ if (!S_ISREG(st.st_mode)) {
+ log_error("%s is not a file.", path);
+ return -EEXIST;
+ }
+
+ r = item_set_perms(i, path);
+ if (r < 0)
+ return r;
+
+ return 0;
}
static int recursive_relabel_children(Item *i, const char *path) {
case CREATE_FILE:
case TRUNCATE_FILE:
- case WRITE_FILE: {
- int fd, flags;
-
- flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND :
- i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0;
-
- u = umask(0);
- label_context_set(i->path, S_IFREG);
- fd = open(i->path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode);
- e = errno;
- label_context_clear();
- umask(u);
- errno = e;
-
- if (fd < 0) {
- if (i->type == WRITE_FILE && errno == ENOENT)
- break;
-
- log_error("Failed to create file %s: %m", i->path);
- return -errno;
- }
-
- if (i->argument) {
- ssize_t n;
- size_t l;
- struct iovec iovec[2];
- static const char new_line = '\n';
-
- l = strlen(i->argument);
-
- zero(iovec);
- iovec[0].iov_base = i->argument;
- iovec[0].iov_len = l;
-
- iovec[1].iov_base = (void*) &new_line;
- iovec[1].iov_len = 1;
-
- n = writev(fd, iovec, 2);
-
- /* It's OK if we don't write the trailing
- * newline, hence we check for l, instead of
- * l+1 here. Files in /sys often refuse
- * writing of the trailing newline. */
- if (n < 0 || (size_t) n < l) {
- log_error("Failed to write file %s: %s", i->path, n < 0 ? strerror(-n) : "Short write");
- close_nointr_nofail(fd);
- return n < 0 ? n : -EIO;
- }
- }
-
- close_nointr_nofail(fd);
-
- if (stat(i->path, &st) < 0) {
- log_error("stat(%s) failed: %m", i->path);
- return -errno;
- }
-
- if (!S_ISREG(st.st_mode)) {
- log_error("%s is not a file.", i->path);
- return -EEXIST;
- }
-
- r = item_set_perms(i, i->path);
+ case WRITE_FILE:
+ r = glob_item(i, write_one_file);
if (r < 0)
return r;
break;
- }
case TRUNCATE_DIRECTORY:
case CREATE_DIRECTORY:
case CREATE_BLOCK_DEVICE:
case CREATE_CHAR_DEVICE: {
- mode_t file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
+ mode_t file_type;
+
+ if (have_effective_cap(CAP_MKNOD) == 0) {
+ /* In a container we lack CAP_MKNOD. We
+ shouldnt attempt to create the device node in
+ that case to avoid noise, and we don't support
+ virtualized devices in containers anyway. */
+
+ log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path);
+ return 0;
+ }
+
+ file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR);
u = umask(0);
label_context_set(i->path, file_type);
case TRUNCATE_DIRECTORY:
case RECURSIVE_REMOVE_PATH:
- r = rm_rf(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
+ /* FIXME: we probably should use dir_cleanup() here
+ * instead of rm_rf() so that 'x' is honoured. */
+ r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false);
if (r < 0 && r != -ENOENT) {
log_error("rm_rf(%s): %s", instance, strerror(-r));
return r;
assert(buffer);
i = new0(Item, 1);
- if (!i) {
- log_error("Out of memory");
- return -ENOMEM;
- }
+ if (!i)
+ return log_oom();
if (sscanf(buffer,
"%c "
n += strspn(buffer+n, WHITESPACE);
if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) {
i->argument = unquote(buffer+n, "\"");
- if (!i->argument) {
- log_error("Out of memory");
- return -ENOMEM;
- }
+ if (!i->argument)
+ return log_oom();
}
}
if (user && !streq(user, "-")) {
const char *u = user;
- r = get_user_creds(&u, &i->uid, NULL, NULL);
+ r = get_user_creds(&u, &i->uid, NULL, NULL, NULL);
if (r < 0) {
log_error("[%s:%u] Unknown user '%s'.", fname, line, user);
goto finish;
return strdup(fragment);
STRV_FOREACH(p, search_paths) {
- resolved_path = join(*p, "/", fragment, NULL);
+ resolved_path = strjoin(*p, "/", fragment, NULL);
if (resolved_path == NULL) {
- log_error("Out of memory");
+ log_oom();
return NULL;
}
globs = hashmap_new(string_hash_func, string_compare_func);
if (!items || !globs) {
- log_error("Out of memory");
+ log_oom();
r = EXIT_FAILURE;
goto finish;
}
~ianmdlvl / elogind.git / blobdiff