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Diffstat (limited to 'src/shared/install.c')
-rw-r--r--src/shared/install.c279
1 files changed, 144 insertions, 135 deletions
diff --git a/src/shared/install.c b/src/shared/install.c
index 65f1c245c6..6172c42d69 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -36,7 +36,6 @@
#include "install.h"
#include "conf-parser.h"
#include "conf-files.h"
-#include "specifier.h"
#include "install-printf.h"
#include "special.h"
@@ -113,51 +112,6 @@ static int get_config_path(UnitFileScope scope, bool runtime, const char *root_d
return 0;
}
-static int add_file_change(
- UnitFileChange **changes,
- unsigned *n_changes,
- UnitFileChangeType type,
- const char *path,
- const char *source) {
-
- UnitFileChange *c;
- unsigned i;
-
- assert(path);
- assert(!changes == !n_changes);
-
- if (!changes)
- return 0;
-
- c = realloc(*changes, (*n_changes + 1) * sizeof(UnitFileChange));
- if (!c)
- return -ENOMEM;
-
- *changes = c;
- i = *n_changes;
-
- c[i].type = type;
- c[i].path = strdup(path);
- if (!c[i].path)
- return -ENOMEM;
-
- path_kill_slashes(c[i].path);
-
- if (source) {
- c[i].source = strdup(source);
- if (!c[i].source) {
- free(c[i].path);
- return -ENOMEM;
- }
-
- path_kill_slashes(c[i].path);
- } else
- c[i].source = NULL;
-
- *n_changes = i+1;
- return 0;
-}
-
static int mark_symlink_for_removal(
Set **remove_symlinks_to,
const char *p) {
@@ -259,10 +213,10 @@ static int remove_marked_symlinks_fd(
int q;
bool found;
- if (!unit_name_is_valid(de->d_name, TEMPLATE_VALID))
+ if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY))
continue;
- if (unit_name_is_instance(de->d_name) &&
+ if (unit_name_is_valid(de->d_name, UNIT_NAME_INSTANCE) &&
instance_whitelist &&
!strv_contains(instance_whitelist, de->d_name)) {
@@ -273,9 +227,9 @@ static int remove_marked_symlinks_fd(
* the template of it might be
* listed. */
- w = unit_name_template(de->d_name);
- if (!w)
- return -ENOMEM;
+ r = unit_name_template(de->d_name, &w);
+ if (r < 0)
+ return r;
if (!strv_contains(instance_whitelist, w))
continue;
@@ -310,7 +264,7 @@ static int remove_marked_symlinks_fd(
path_kill_slashes(p);
rmdir_parents(p, config_path);
- add_file_change(changes, n_changes, UNIT_FILE_UNLINK, p, NULL);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL);
if (!set_get(remove_symlinks_to, p)) {
@@ -515,7 +469,7 @@ static int find_symlinks_in_scope(
UnitFileState *state) {
int r;
- _cleanup_free_ char *path = NULL;
+ _cleanup_free_ char *normal_path = NULL, *runtime_path = NULL;
bool same_name_link_runtime = false, same_name_link = false;
assert(scope >= 0);
@@ -523,11 +477,11 @@ static int find_symlinks_in_scope(
assert(name);
/* First look in runtime config path */
- r = get_config_path(scope, true, root_dir, &path);
+ r = get_config_path(scope, true, root_dir, &normal_path);
if (r < 0)
return r;
- r = find_symlinks(name, path, &same_name_link_runtime);
+ r = find_symlinks(name, normal_path, &same_name_link_runtime);
if (r < 0)
return r;
else if (r > 0) {
@@ -536,11 +490,11 @@ static int find_symlinks_in_scope(
}
/* Then look in the normal config path */
- r = get_config_path(scope, false, root_dir, &path);
+ r = get_config_path(scope, false, root_dir, &runtime_path);
if (r < 0)
return r;
- r = find_symlinks(name, path, &same_name_link);
+ r = find_symlinks(name, runtime_path, &same_name_link);
if (r < 0)
return r;
else if (r > 0) {
@@ -584,7 +538,7 @@ int unit_file_mask(
STRV_FOREACH(i, files) {
_cleanup_free_ char *path = NULL;
- if (!unit_name_is_valid(*i, TEMPLATE_VALID)) {
+ if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) {
if (r == 0)
r = -EINVAL;
continue;
@@ -597,7 +551,7 @@ int unit_file_mask(
}
if (symlink("/dev/null", path) >= 0) {
- add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, "/dev/null");
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, path, "/dev/null");
continue;
}
@@ -608,8 +562,8 @@ int unit_file_mask(
if (force) {
if (symlink_atomic("/dev/null", path) >= 0) {
- add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
- add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, "/dev/null");
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, path, "/dev/null");
continue;
}
}
@@ -647,7 +601,7 @@ int unit_file_unmask(
STRV_FOREACH(i, files) {
_cleanup_free_ char *path = NULL;
- if (!unit_name_is_valid(*i, TEMPLATE_VALID)) {
+ if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) {
if (r == 0)
r = -EINVAL;
continue;
@@ -665,7 +619,7 @@ int unit_file_unmask(
q = -errno;
else {
q = mark_symlink_for_removal(&remove_symlinks_to, path);
- add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
}
}
@@ -718,7 +672,7 @@ int unit_file_link(
fn = basename(*i);
if (!path_is_absolute(*i) ||
- !unit_name_is_valid(fn, TEMPLATE_VALID)) {
+ !unit_name_is_valid(fn, UNIT_NAME_ANY)) {
if (r == 0)
r = -EINVAL;
continue;
@@ -747,7 +701,7 @@ int unit_file_link(
return -ENOMEM;
if (symlink(*i, path) >= 0) {
- add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, *i);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, path, *i);
continue;
}
@@ -766,8 +720,8 @@ int unit_file_link(
if (force) {
if (symlink_atomic(*i, path) >= 0) {
- add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
- add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, *i);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, path, *i);
continue;
}
}
@@ -794,6 +748,51 @@ void unit_file_list_free(Hashmap *h) {
hashmap_free(h);
}
+int unit_file_changes_add(
+ UnitFileChange **changes,
+ unsigned *n_changes,
+ UnitFileChangeType type,
+ const char *path,
+ const char *source) {
+
+ UnitFileChange *c;
+ unsigned i;
+
+ assert(path);
+ assert(!changes == !n_changes);
+
+ if (!changes)
+ return 0;
+
+ c = realloc(*changes, (*n_changes + 1) * sizeof(UnitFileChange));
+ if (!c)
+ return -ENOMEM;
+
+ *changes = c;
+ i = *n_changes;
+
+ c[i].type = type;
+ c[i].path = strdup(path);
+ if (!c[i].path)
+ return -ENOMEM;
+
+ path_kill_slashes(c[i].path);
+
+ if (source) {
+ c[i].source = strdup(source);
+ if (!c[i].source) {
+ free(c[i].path);
+ return -ENOMEM;
+ }
+
+ path_kill_slashes(c[i].path);
+ } else
+ c[i].source = NULL;
+
+ *n_changes = i+1;
+ return 0;
+}
+
void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes) {
unsigned i;
@@ -810,7 +809,7 @@ void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes) {
free(changes);
}
-static void install_info_free(InstallInfo *i) {
+static void install_info_free(UnitFileInstallInfo *i) {
assert(i);
free(i->name);
@@ -824,7 +823,7 @@ static void install_info_free(InstallInfo *i) {
}
static void install_info_hashmap_free(OrderedHashmap *m) {
- InstallInfo *i;
+ UnitFileInstallInfo *i;
if (!m)
return;
@@ -848,7 +847,7 @@ static int install_info_add(
InstallContext *c,
const char *name,
const char *path) {
- InstallInfo *i = NULL;
+ UnitFileInstallInfo *i = NULL;
int r;
assert(c);
@@ -857,7 +856,7 @@ static int install_info_add(
if (!name)
name = basename(path);
- if (!unit_name_is_valid(name, TEMPLATE_VALID))
+ if (!unit_name_is_valid(name, UNIT_NAME_ANY))
return -EINVAL;
if (ordered_hashmap_get(c->have_installed, name) ||
@@ -868,7 +867,7 @@ static int install_info_add(
if (r < 0)
return r;
- i = new0(InstallInfo, 1);
+ i = new0(UnitFileInstallInfo, 1);
if (!i)
return -ENOMEM;
@@ -927,7 +926,7 @@ static int config_parse_also(
size_t l;
const char *word, *state;
InstallContext *c = data;
- InstallInfo *i = userdata;
+ UnitFileInstallInfo *i = userdata;
assert(filename);
assert(lvalue);
@@ -968,7 +967,7 @@ static int config_parse_user(
void *data,
void *userdata) {
- InstallInfo *i = data;
+ UnitFileInstallInfo *i = data;
char *printed;
int r;
@@ -998,7 +997,7 @@ static int config_parse_default_instance(
void *data,
void *userdata) {
- InstallInfo *i = data;
+ UnitFileInstallInfo *i = data;
char *printed;
int r;
@@ -1023,7 +1022,7 @@ static int config_parse_default_instance(
static int unit_file_load(
InstallContext *c,
- InstallInfo *info,
+ UnitFileInstallInfo *info,
const char *path,
const char *root_dir,
bool allow_symlink,
@@ -1083,8 +1082,8 @@ static int unit_file_load(
static int unit_file_search(
InstallContext *c,
- InstallInfo *info,
- LookupPaths *paths,
+ UnitFileInstallInfo *info,
+ const LookupPaths *paths,
const char *root_dir,
bool allow_symlink,
bool load,
@@ -1119,7 +1118,7 @@ static int unit_file_search(
return r;
}
- if (unit_name_is_instance(info->name)) {
+ if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) {
/* Unit file doesn't exist, however instance
* enablement was requested. We will check if it is
@@ -1127,9 +1126,9 @@ static int unit_file_search(
_cleanup_free_ char *template = NULL;
- template = unit_name_template(info->name);
- if (!template)
- return -ENOMEM;
+ r = unit_name_template(info->name, &template);
+ if (r < 0)
+ return r;
STRV_FOREACH(p, paths->unit_path) {
_cleanup_free_ char *path = NULL;
@@ -1153,14 +1152,14 @@ static int unit_file_search(
}
static int unit_file_can_install(
- LookupPaths *paths,
+ const LookupPaths *paths,
const char *root_dir,
const char *name,
bool allow_symlink,
bool *also) {
_cleanup_(install_context_done) InstallContext c = {};
- InstallInfo *i;
+ UnitFileInstallInfo *i;
int r;
assert(paths);
@@ -1199,7 +1198,7 @@ static int create_symlink(
mkdir_parents_label(new_path, 0755);
if (symlink(old_path, new_path) >= 0) {
- add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
return 0;
}
@@ -1220,14 +1219,14 @@ static int create_symlink(
if (r < 0)
return r;
- add_file_change(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL);
- add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL);
+ unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path);
return 0;
}
static int install_info_symlink_alias(
- InstallInfo *i,
+ UnitFileInstallInfo *i,
const char *config_path,
bool force,
UnitFileChange **changes,
@@ -1259,7 +1258,7 @@ static int install_info_symlink_alias(
}
static int install_info_symlink_wants(
- InstallInfo *i,
+ UnitFileInstallInfo *i,
const char *config_path,
char **list,
const char *suffix,
@@ -1275,7 +1274,7 @@ static int install_info_symlink_wants(
assert(i);
assert(config_path);
- if (unit_name_is_template(i->name)) {
+ if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) {
/* Don't install any symlink if there's no default
* instance configured */
@@ -1283,9 +1282,9 @@ static int install_info_symlink_wants(
if (!i->default_instance)
return 0;
- buf = unit_name_replace_instance(i->name, i->default_instance);
- if (!buf)
- return -ENOMEM;
+ r = unit_name_replace_instance(i->name, i->default_instance, &buf);
+ if (r < 0)
+ return r;
n = buf;
} else
@@ -1298,7 +1297,7 @@ static int install_info_symlink_wants(
if (q < 0)
return q;
- if (!unit_name_is_valid(dst, TEMPLATE_VALID)) {
+ if (!unit_name_is_valid(dst, UNIT_NAME_ANY)) {
r = -EINVAL;
continue;
}
@@ -1316,8 +1315,8 @@ static int install_info_symlink_wants(
}
static int install_info_symlink_link(
- InstallInfo *i,
- LookupPaths *paths,
+ UnitFileInstallInfo *i,
+ const LookupPaths *paths,
const char *config_path,
const char *root_dir,
bool force,
@@ -1344,8 +1343,8 @@ static int install_info_symlink_link(
}
static int install_info_apply(
- InstallInfo *i,
- LookupPaths *paths,
+ UnitFileInstallInfo *i,
+ const LookupPaths *paths,
const char *config_path,
const char *root_dir,
bool force,
@@ -1377,14 +1376,14 @@ static int install_info_apply(
static int install_context_apply(
InstallContext *c,
- LookupPaths *paths,
+ const LookupPaths *paths,
const char *config_path,
const char *root_dir,
bool force,
UnitFileChange **changes,
unsigned *n_changes) {
- InstallInfo *i;
+ UnitFileInstallInfo *i;
int r, q;
assert(c);
@@ -1424,12 +1423,12 @@ static int install_context_apply(
static int install_context_mark_for_removal(
InstallContext *c,
- LookupPaths *paths,
+ const LookupPaths *paths,
Set **remove_symlinks_to,
const char *config_path,
const char *root_dir) {
- InstallInfo *i;
+ UnitFileInstallInfo *i;
int r, q;
assert(c);
@@ -1463,13 +1462,13 @@ static int install_context_mark_for_removal(
} else if (r >= 0)
r += q;
- if (unit_name_is_instance(i->name)) {
+ if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE)) {
char *unit_file;
if (i->path) {
unit_file = basename(i->path);
- if (unit_name_is_instance(unit_file))
+ if (unit_name_is_valid(unit_file, UNIT_NAME_INSTANCE))
/* unit file named as instance exists, thus all symlinks
* pointing to it will be removed */
q = mark_symlink_for_removal(remove_symlinks_to, i->name);
@@ -1481,9 +1480,9 @@ static int install_context_mark_for_removal(
/* If i->path is not set, it means that we didn't actually find
* the unit file. But we can still remove symlinks to the
* nonexistent template. */
- unit_file = unit_name_template(i->name);
- if (!unit_file)
- return log_oom();
+ r = unit_name_template(i->name, &unit_file);
+ if (r < 0)
+ return r;
q = mark_symlink_for_removal(remove_symlinks_to, unit_file);
free(unit_file);
@@ -1514,7 +1513,7 @@ int unit_file_add_dependency(
_cleanup_free_ char *config_path = NULL;
char **i;
int r;
- InstallInfo *info;
+ UnitFileInstallInfo *info;
assert(scope >= 0);
assert(scope < _UNIT_FILE_SCOPE_MAX);
@@ -1536,7 +1535,7 @@ int unit_file_add_dependency(
if (state == UNIT_FILE_MASKED || state == UNIT_FILE_MASKED_RUNTIME) {
log_error("Failed to enable unit: Unit %s is masked", *i);
- return -ENOTSUP;
+ return -EOPNOTSUPP;
}
r = install_info_add_auto(&c, *i);
@@ -1614,7 +1613,7 @@ int unit_file_enable(
state = unit_file_get_state(scope, root_dir, *i);
if (state == UNIT_FILE_MASKED || state == UNIT_FILE_MASKED_RUNTIME) {
log_error("Failed to enable unit: Unit %s is masked", *i);
- return -ENOTSUP;
+ return -EOPNOTSUPP;
}
r = install_info_add_auto(&c, *i);
@@ -1703,7 +1702,7 @@ int unit_file_set_default(
_cleanup_free_ char *config_path = NULL;
char *path;
int r;
- InstallInfo *i = NULL;
+ UnitFileInstallInfo *i = NULL;
assert(scope >= 0);
assert(scope < _UNIT_FILE_SCOPE_MAX);
@@ -1785,39 +1784,28 @@ int unit_file_get_default(
return -ENOENT;
}
-UnitFileState unit_file_get_state(
+UnitFileState unit_file_lookup_state(
UnitFileScope scope,
const char *root_dir,
+ const LookupPaths *paths,
const char *name) {
- _cleanup_lookup_paths_free_ LookupPaths paths = {};
UnitFileState state = _UNIT_FILE_STATE_INVALID;
char **i;
_cleanup_free_ char *path = NULL;
- int r;
-
- assert(scope >= 0);
- assert(scope < _UNIT_FILE_SCOPE_MAX);
- assert(name);
+ int r = 0;
- if (root_dir && scope != UNIT_FILE_SYSTEM)
- return -EINVAL;
+ assert(paths);
- if (!unit_name_is_valid(name, TEMPLATE_VALID))
+ if (!unit_name_is_valid(name, UNIT_NAME_ANY))
return -EINVAL;
- r = lookup_paths_init_from_scope(&paths, scope, root_dir);
- if (r < 0)
- return r;
-
- STRV_FOREACH(i, paths.unit_path) {
+ STRV_FOREACH(i, paths->unit_path) {
struct stat st;
char *partial;
bool also = false;
free(path);
- path = NULL;
-
path = path_join(root_dir, *i, name);
if (!path)
return -ENOMEM;
@@ -1836,7 +1824,7 @@ UnitFileState unit_file_get_state(
if (errno != ENOENT)
return r;
- if (!unit_name_is_instance(name))
+ if (!unit_name_is_valid(name, UNIT_NAME_INSTANCE))
continue;
} else {
if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode))
@@ -1846,8 +1834,7 @@ UnitFileState unit_file_get_state(
if (r < 0 && r != -ENOENT)
return r;
else if (r > 0) {
- state = path_startswith(*i, "/run") ?
- UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED;
+ state = path_startswith(*i, "/run") ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED;
return state;
}
}
@@ -1858,7 +1845,7 @@ UnitFileState unit_file_get_state(
else if (r > 0)
return state;
- r = unit_file_can_install(&paths, root_dir, partial, true, &also);
+ r = unit_file_can_install(paths, root_dir, partial, true, &also);
if (r < 0 && errno != ENOENT)
return r;
else if (r > 0)
@@ -1873,6 +1860,28 @@ UnitFileState unit_file_get_state(
return r < 0 ? r : state;
}
+UnitFileState unit_file_get_state(
+ UnitFileScope scope,
+ const char *root_dir,
+ const char *name) {
+
+ _cleanup_lookup_paths_free_ LookupPaths paths = {};
+ int r;
+
+ assert(scope >= 0);
+ assert(scope < _UNIT_FILE_SCOPE_MAX);
+ assert(name);
+
+ if (root_dir && scope != UNIT_FILE_SYSTEM)
+ return -EINVAL;
+
+ r = lookup_paths_init_from_scope(&paths, scope, root_dir);
+ if (r < 0)
+ return r;
+
+ return unit_file_lookup_state(scope, root_dir, &paths, name);
+}
+
int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) {
_cleanup_strv_free_ char **files = NULL;
char **p;
@@ -1985,7 +1994,7 @@ int unit_file_preset(
STRV_FOREACH(i, files) {
- if (!unit_name_is_valid(*i, TEMPLATE_VALID))
+ if (!unit_name_is_valid(*i, UNIT_NAME_ANY))
return -EINVAL;
r = unit_file_query_preset(scope, root_dir, *i);
@@ -2081,7 +2090,7 @@ int unit_file_preset_all(
if (hidden_file(de->d_name))
continue;
- if (!unit_name_is_valid(de->d_name, TEMPLATE_VALID))
+ if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY))
continue;
dirent_ensure_type(d, de);
@@ -2193,7 +2202,7 @@ int unit_file_get_list(
if (hidden_file(de->d_name))
continue;
- if (!unit_name_is_valid(de->d_name, TEMPLATE_VALID))
+ if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY))
continue;
if (hashmap_get(h, de->d_name))
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2025-02-11 20:52:43 +0000