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-rw-r--r--src/tmpfiles/tmpfiles.c308
1 files changed, 157 insertions, 151 deletions
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 84d778a08f..c44dfaf1d2 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -4,6 +4,7 @@
This file is part of systemd.
Copyright 2010 Lennart Poettering, Kay Sievers
+ Copyright 2015 Zbigniew Jędrzejewski-Szmek
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
@@ -113,6 +114,12 @@ typedef struct Item {
bool done:1;
} Item;
+typedef struct ItemArray {
+ Item *items;
+ size_t count;
+ size_t size;
+} ItemArray;
+
static bool arg_create = false;
static bool arg_clean = false;
static bool arg_remove = false;
@@ -141,13 +148,40 @@ static bool needs_glob(ItemType t) {
RECURSIVE_RELABEL_PATH);
}
+static bool takes_ownership(ItemType t) {
+ return IN_SET(t,
+ CREATE_FILE,
+ TRUNCATE_FILE,
+ CREATE_DIRECTORY,
+ TRUNCATE_DIRECTORY,
+ CREATE_SUBVOLUME,
+ CREATE_FIFO,
+ CREATE_SYMLINK,
+ CREATE_CHAR_DEVICE,
+ CREATE_BLOCK_DEVICE,
+ COPY_FILES,
+
+ WRITE_FILE,
+ IGNORE_PATH,
+ IGNORE_DIRECTORY_PATH,
+ REMOVE_PATH,
+ RECURSIVE_REMOVE_PATH);
+}
+
static struct Item* find_glob(Hashmap *h, const char *match) {
- Item *j;
+ ItemArray *j;
Iterator i;
- HASHMAP_FOREACH(j, h, i)
- if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
- return j;
+ HASHMAP_FOREACH(j, h, i) {
+ unsigned n;
+
+ for (n = 0; n < j->count; n++) {
+ Item *item = j->items + n;
+
+ if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0)
+ return item;
+ }
+ }
return NULL;
}
@@ -604,10 +638,6 @@ static int write_one_file(Item *i, const char *path) {
if (r < 0)
return r;
- r = item_set_xattrs(i, i->path);
- if (r < 0)
- return r;
-
return 0;
}
@@ -790,10 +820,6 @@ static int create_item(Item *i) {
if (r < 0)
return r;
- r = item_set_xattrs(i, i->path);
- if (r < 0)
- return r;
-
break;
case CREATE_FIFO:
@@ -834,10 +860,6 @@ static int create_item(Item *i) {
if (r < 0)
return r;
- r = item_set_xattrs(i, i->path);
- if (r < 0)
- return r;
-
break;
case CREATE_SYMLINK:
@@ -869,10 +891,6 @@ static int create_item(Item *i) {
}
}
- r = item_set_xattrs(i, i->path);
- if (r < 0)
- return r;
-
break;
case CREATE_BLOCK_DEVICE:
@@ -933,10 +951,6 @@ static int create_item(Item *i) {
if (r < 0)
return r;
- r = item_set_xattrs(i, i->path);
- if (r < 0)
- return r;
-
break;
}
@@ -994,7 +1008,7 @@ static int remove_item_instance(Item *i, const char *instance) {
case REMOVE_PATH:
if (remove(instance) < 0 && errno != ENOENT)
- return log_error_errno(errno, "remove(%s): %m", instance);
+ return log_error_errno(errno, "rm(%s): %m", instance);
break;
@@ -1116,6 +1130,8 @@ static int clean_item(Item *i) {
return r;
}
+static int process_item_array(ItemArray *array);
+
static int process_item(Item *i) {
int r, q, p, t = 0;
_cleanup_free_ char *prefix = NULL;
@@ -1132,13 +1148,13 @@ static int process_item(Item *i) {
return log_oom();
PATH_FOREACH_PREFIX(prefix, i->path) {
- Item *j;
+ ItemArray *j;
j = hashmap_get(items, prefix);
if (j) {
int s;
- s = process_item(j);
+ s = process_item_array(j);
if (s < 0 && t == 0)
t = s;
}
@@ -1154,57 +1170,66 @@ static int process_item(Item *i) {
p;
}
-static void item_free(Item *i) {
+static int process_item_array(ItemArray *array) {
+ unsigned n;
+ int r = 0, k;
- if (!i)
- return;
+ assert(array);
+
+ for (n = 0; n < array->count; n++) {
+ k = process_item(array->items + n);
+ if (k < 0 && r == 0)
+ r = k;
+ }
+
+ return r;
+}
+static void item_free_contents(Item *i) {
+ assert(i);
free(i->path);
free(i->argument);
strv_free(i->xattrs);
- free(i);
}
-DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free);
+static void item_array_free(ItemArray *a) {
+ unsigned n;
+
+ if (!a)
+ return;
+
+ for (n = 0; n < a->count; n++)
+ item_free_contents(a->items + n);
+ free(a->items);
+ free(a);
+}
-static bool item_equal(Item *a, Item *b) {
+static bool item_compatible(Item *a, Item *b) {
assert(a);
assert(b);
+ assert(streq(a->path, b->path));
- if (!streq_ptr(a->path, b->path))
- return false;
+ if (takes_ownership(a->type) && takes_ownership(b->type))
+ /* check if the items are the same */
+ return streq_ptr(a->argument, b->argument) &&
- if (a->type != b->type)
- return false;
+ a->uid_set == b->uid_set &&
+ a->uid == b->uid &&
- if (a->uid_set != b->uid_set ||
- (a->uid_set && a->uid != b->uid))
- return false;
+ a->gid_set == b->gid_set &&
+ a->gid == b->gid &&
- if (a->gid_set != b->gid_set ||
- (a->gid_set && a->gid != b->gid))
- return false;
+ a->mode_set == b->mode_set &&
+ a->mode == b->mode &&
- if (a->mode_set != b->mode_set ||
- (a->mode_set && a->mode != b->mode))
- return false;
+ a->age_set == b->age_set &&
+ a->age == b->age &&
- if (a->age_set != b->age_set ||
- (a->age_set && a->age != b->age))
- return false;
+ a->mask_perms == b->mask_perms &&
- if ((a->type == CREATE_FILE ||
- a->type == TRUNCATE_FILE ||
- a->type == WRITE_FILE ||
- a->type == CREATE_SYMLINK ||
- a->type == COPY_FILES) &&
- !streq_ptr(a->argument, b->argument))
- return false;
+ a->keep_first_level == b->keep_first_level &&
- if ((a->type == CREATE_CHAR_DEVICE ||
- a->type == CREATE_BLOCK_DEVICE) &&
- a->major_minor != b->major_minor)
- return false;
+ a->major_minor == b->major_minor;
return true;
}
@@ -1236,10 +1261,10 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
};
_cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL;
- _cleanup_(item_freep) Item *i = NULL;
- Item *existing;
+ _cleanup_(item_free_contents) Item i = {};
+ ItemArray *existing;
Hashmap *h;
- int r, n = -1, pos;
+ int r, c = -1, pos;
bool force = false, boot = false;
assert(fname);
@@ -1254,7 +1279,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
&user,
&group,
&age,
- &n);
+ &c);
if (r < 2) {
log_error("[%s:%u] Syntax error.", fname, line);
return -EIO;
@@ -1280,29 +1305,25 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
if (boot && !arg_boot)
return 0;
- i = new0(Item, 1);
- if (!i)
- return log_oom();
-
- i->type = action[0];
- i->force = force;
+ i.type = action[0];
+ i.force = force;
- r = specifier_printf(path, specifier_table, NULL, &i->path);
+ 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)) {
- i->argument = unquote(buffer+n, "\"");
- if (!i->argument)
+ if (c >= 0) {
+ c += strspn(buffer+c, WHITESPACE);
+ if (buffer[c] != 0 && (buffer[c] != '-' || buffer[c+1] != 0)) {
+ i.argument = unquote(buffer+c, "\"");
+ if (!i.argument)
return log_oom();
}
}
- switch (i->type) {
+ switch (i.type) {
case CREATE_FILE:
case TRUNCATE_FILE:
@@ -1320,109 +1341,109 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
break;
case CREATE_SYMLINK:
- if (!i->argument) {
- i->argument = strappend("/usr/share/factory/", i->path);
- if (!i->argument)
+ if (!i.argument) {
+ i.argument = strappend("/usr/share/factory/", i.path);
+ if (!i.argument)
return log_oom();
}
break;
case WRITE_FILE:
- if (!i->argument) {
+ if (!i.argument) {
log_error("[%s:%u] Write file requires argument.", fname, line);
return -EBADMSG;
}
break;
case COPY_FILES:
- if (!i->argument) {
- i->argument = strappend("/usr/share/factory/", i->path);
- if (!i->argument)
+ if (!i.argument) {
+ i.argument = strappend("/usr/share/factory/", i.path);
+ if (!i.argument)
return log_oom();
- } else if (!path_is_absolute(i->argument)) {
+ } else if (!path_is_absolute(i.argument)) {
log_error("[%s:%u] Source path is not absolute.", fname, line);
return -EBADMSG;
}
- path_kill_slashes(i->argument);
+ path_kill_slashes(i.argument);
break;
case CREATE_CHAR_DEVICE:
case CREATE_BLOCK_DEVICE: {
unsigned major, minor;
- if (!i->argument) {
+ if (!i.argument) {
log_error("[%s:%u] Device file requires argument.", fname, line);
return -EBADMSG;
}
- if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) {
- log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument);
+ if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) {
+ log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument);
return -EBADMSG;
}
- i->major_minor = makedev(major, minor);
+ i.major_minor = makedev(major, minor);
break;
}
case SET_XATTR:
- if (!i->argument) {
+ if (!i.argument) {
log_error("[%s:%u] Set extended attribute requires argument.", fname, line);
return -EBADMSG;
}
- r = get_xattrs_from_arg(i);
+ r = get_xattrs_from_arg(&i);
if (r < 0)
return r;
break;
default:
- log_error("[%s:%u] Unknown command type '%c'.", fname, line, i->type);
+ log_error("[%s:%u] Unknown command type '%c'.", fname, line, i.type);
return -EBADMSG;
}
- if (!path_is_absolute(i->path)) {
- log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path);
+ if (!path_is_absolute(i.path)) {
+ log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path);
return -EBADMSG;
}
- path_kill_slashes(i->path);
+ path_kill_slashes(i.path);
- if (!should_include_path(i->path))
+ if (!should_include_path(i.path))
return 0;
if (arg_root) {
char *p;
- p = strappend(arg_root, i->path);
+ p = strappend(arg_root, i.path);
if (!p)
return log_oom();
- free(i->path);
- i->path = p;
+ free(i.path);
+ i.path = p;
}
if (user && !streq(user, "-")) {
const char *u = user;
- r = get_user_creds(&u, &i->uid, NULL, 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);
return r;
}
- i->uid_set = true;
+ i.uid_set = true;
}
if (group && !streq(group, "-")) {
const char *g = group;
- r = get_group_creds(&g, &i->gid);
+ r = get_group_creds(&g, &i.gid);
if (r < 0) {
log_error("[%s:%u] Unknown group '%s'.", fname, line, group);
return r;
}
- i->gid_set = true;
+ i.gid_set = true;
}
if (mode && !streq(mode, "-")) {
@@ -1430,7 +1451,7 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
unsigned m;
if (*mm == '~') {
- i->mask_perms = true;
+ i.mask_perms = true;
mm++;
}
@@ -1439,66 +1460,51 @@ static int parse_line(const char *fname, unsigned line, const char *buffer) {
return -ENOENT;
}
- i->mode = m;
- i->mode_set = true;
+ i.mode = m;
+ i.mode_set = true;
} else
- i->mode =
- i->type == CREATE_DIRECTORY ||
- i->type == CREATE_SUBVOLUME ||
- i->type == TRUNCATE_DIRECTORY ? 0755 : 0644;
+ i.mode = IN_SET(i.type, CREATE_DIRECTORY, CREATE_SUBVOLUME, TRUNCATE_DIRECTORY)
+ ? 0755 : 0644;
if (age && !streq(age, "-")) {
const char *a = age;
if (*a == '~') {
- i->keep_first_level = true;
+ i.keep_first_level = true;
a++;
}
- if (parse_sec(a, &i->age) < 0) {
+ if (parse_sec(a, &i.age) < 0) {
log_error("[%s:%u] Invalid age '%s'.", fname, line, age);
return -EBADMSG;
}
- i->age_set = true;
+ i.age_set = true;
}
- h = needs_glob(i->type) ? globs : items;
+ h = needs_glob(i.type) ? globs : items;
- existing = hashmap_get(h, i->path);
+ existing = hashmap_get(h, i.path);
if (existing) {
- if (i->type == SET_XATTR) {
- r = strv_extend_strv(&existing->xattrs, i->xattrs);
- if (r < 0)
- return log_oom();
- return 0;
- } else if (existing->type == SET_XATTR) {
- r = strv_extend_strv(&i->xattrs, existing->xattrs);
- if (r < 0)
- return log_oom();
- r = hashmap_replace(h, i->path, i);
- if (r < 0) {
- log_error("Failed to replace item for %s.", i->path);
- return r;
- }
- item_free(existing);
- } else {
- /* Two identical items are fine */
- if (!item_equal(existing, i))
+ unsigned n;
+
+ for (n = 0; n < existing->count; n++) {
+ if (!item_compatible(existing->items + n, &i))
log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.",
- fname, line, i->path);
- return 0;
+ fname, line, i.path);
}
} else {
- r = hashmap_put(h, i->path, i);
- if (r < 0) {
- log_error("Failed to insert item %s: %s", i->path, strerror(-r));
- return r;
- }
+ existing = new0(ItemArray, 1);
+ r = hashmap_put(h, i.path, existing);
+ if (r < 0)
+ return log_oom();
}
- i = NULL; /* avoid cleanup */
+ if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1))
+ return log_oom();
+ memcpy(existing->items + existing->count++, &i, sizeof(i));
+ zero(i);
return 0;
}
@@ -1683,7 +1689,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
int main(int argc, char *argv[]) {
int r, k;
- Item *i;
+ ItemArray *a;
Iterator iterator;
r = parse_argv(argc, argv);
@@ -1734,24 +1740,24 @@ int main(int argc, char *argv[]) {
}
}
- HASHMAP_FOREACH(i, globs, iterator) {
- k = process_item(i);
+ HASHMAP_FOREACH(a, globs, iterator) {
+ k = process_item_array(a);
if (k < 0 && r == 0)
r = k;
}
- HASHMAP_FOREACH(i, items, iterator) {
- k = process_item(i);
+ HASHMAP_FOREACH(a, items, iterator) {
+ k = process_item_array(a);
if (k < 0 && r == 0)
r = k;
}
finish:
- while ((i = hashmap_steal_first(items)))
- item_free(i);
+ while ((a = hashmap_steal_first(items)))
+ item_array_free(a);
- while ((i = hashmap_steal_first(globs)))
- item_free(i);
+ while ((a = hashmap_steal_first(globs)))
+ item_array_free(a);
hashmap_free(items);
hashmap_free(globs);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-22 09:08:55 +0000