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-rw-r--r--src/shared/bus-unit-util.c145
1 files changed, 126 insertions, 19 deletions
diff --git a/src/shared/bus-unit-util.c b/src/shared/bus-unit-util.c
index 50de989..da83422 100644
--- a/src/shared/bus-unit-util.c
+++ b/src/shared/bus-unit-util.c
@@ -2,6 +2,7 @@
#include "af-list.h"
#include "alloc-util.h"
+#include "bus-common-errors.h"
#include "bus-error.h"
#include "bus-locator.h"
#include "bus-unit-util.h"
@@ -494,14 +495,14 @@ static int bus_append_nft_set(sd_bus_message *m, const char *field, const char *
if (r == 0)
break;
if (isempty(tuple))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s", field);
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s.", field);
q = tuple;
- r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE, &source_str, &nfproto_str, &table, &set, NULL);
+ r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE, &source_str, &nfproto_str, &table, &set);
if (r == -ENOMEM)
return log_oom();
if (r != 4 || !isempty(q))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s", field);
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s.", field);
assert(source_str);
assert(nfproto_str);
@@ -510,11 +511,11 @@ static int bus_append_nft_set(sd_bus_message *m, const char *field, const char *
source = nft_set_source_from_string(source_str);
if (!IN_SET(source, NFT_SET_SOURCE_CGROUP, NFT_SET_SOURCE_USER, NFT_SET_SOURCE_GROUP))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s", field);
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s.", field);
nfproto = nfproto_from_string(nfproto_str);
if (nfproto < 0 || !nft_identifier_valid(table) || !nft_identifier_valid(set))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s", field);
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s.", field);
r = sd_bus_message_append(m, "(iiss)", source, nfproto, table, set);
if (r < 0)
@@ -562,6 +563,7 @@ static int bus_append_cgroup_property(sd_bus_message *m, const char *field, cons
if (STR_IN_SET(field, "CPUAccounting",
"MemoryAccounting",
+ "MemoryZSwapWriteback",
"IOAccounting",
"BlockIOAccounting",
"TasksAccounting",
@@ -678,8 +680,7 @@ static int bus_append_cgroup_property(sd_bus_message *m, const char *field, cons
else {
r = parse_permyriad_unbounded(eq);
if (r == 0)
- return log_error_errno(SYNTHETIC_ERRNO(ERANGE),
- "CPU quota too small.");
+ return log_error_errno(SYNTHETIC_ERRNO(ERANGE), "CPU quota too small.");
if (r < 0)
return log_error_errno(r, "CPU quota '%s' invalid.", eq);
@@ -1213,7 +1214,7 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
_cleanup_free_ void *decoded = NULL;
size_t decoded_size;
- r = unbase64mem(p, SIZE_MAX, &decoded, &decoded_size);
+ r = unbase64mem(p, &decoded, &decoded_size);
if (r < 0)
return log_error_errno(r, "Failed to base64 decode encrypted credential: %m");
@@ -1400,7 +1401,7 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
_cleanup_free_ void *decoded = NULL;
size_t sz;
- r = unbase64mem(eq, SIZE_MAX, &decoded, &sz);
+ r = unbase64mem(eq, &decoded, &sz);
if (r < 0)
return log_error_errno(r, "Failed to decode base64 data '%s': %m", eq);
@@ -1787,11 +1788,11 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
return bus_append_string(m, "RootHashPath", eq);
/* We have a roothash to decode, eg: RootHash=012345789abcdef */
- r = unhexmem(eq, strlen(eq), &roothash_decoded, &roothash_decoded_size);
+ r = unhexmem(eq, &roothash_decoded, &roothash_decoded_size);
if (r < 0)
return log_error_errno(r, "Failed to decode RootHash= '%s': %m", eq);
if (roothash_decoded_size < sizeof(sd_id128_t))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "RootHash= '%s' is too short: %m", eq);
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "RootHash= '%s' is too short.", eq);
return bus_append_byte_array(m, field, roothash_decoded, roothash_decoded_size);
}
@@ -1806,10 +1807,10 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
return bus_append_string(m, "RootHashSignaturePath", eq);
if (!(value = startswith(eq, "base64:")))
- return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to decode RootHashSignature= '%s', not a path but doesn't start with 'base64:': %m", eq);
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to decode RootHashSignature= '%s', not a path but doesn't start with 'base64:'.", eq);
/* We have a roothash signature to decode, eg: RootHashSignature=base64:012345789abcdef */
- r = unbase64mem(value, strlen(value), &roothash_sig_decoded, &roothash_sig_decoded_size);
+ r = unbase64mem(value, &roothash_sig_decoded, &roothash_sig_decoded_size);
if (r < 0)
return log_error_errno(r, "Failed to decode RootHashSignature= '%s': %m", eq);
@@ -1894,7 +1895,7 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
break;
q = tuple;
- r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &first, &second, NULL);
+ r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &first, &second);
if (r < 0)
return log_error_errno(r, "Failed to parse MountImages= property: %s", eq);
if (r == 0)
@@ -1926,7 +1927,7 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
for (;;) {
_cleanup_free_ char *partition = NULL, *mount_options = NULL;
- r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
+ r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options);
if (r < 0)
return log_error_errno(r, "Failed to parse MountImages= property: %s", eq);
if (r == 0)
@@ -2027,7 +2028,7 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
for (;;) {
_cleanup_free_ char *partition = NULL, *mount_options = NULL;
- r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
+ r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options);
if (r < 0)
return log_error_errno(r, "Failed to parse ExtensionImages= property: %s", eq);
if (r == 0)
@@ -2088,7 +2089,7 @@ static int bus_append_execute_property(sd_bus_message *m, const char *field, con
break;
const char *t = tuple;
- r = extract_many_words(&t, ":", EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS, &source, &destination, NULL);
+ r = extract_many_words(&t, ":", EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS, &source, &destination);
if (r <= 0)
return log_error_errno(r ?: SYNTHETIC_ERRNO(EINVAL), "Failed to parse argument: %m");
@@ -2449,6 +2450,7 @@ static int bus_append_socket_property(sd_bus_message *m, const char *field, cons
"Transparent",
"Broadcast",
"PassCredentials",
+ "PassFileDescriptorsToExec",
"PassSecurity",
"PassPacketInfo",
"ReusePort",
@@ -2643,6 +2645,7 @@ static int bus_append_unit_property(sd_bus_message *m, const char *field, const
if (unit_dependency_from_string(field) >= 0 ||
STR_IN_SET(field, "Documentation",
"RequiresMountsFor",
+ "WantsMountsFor",
"Markers"))
return bus_append_strv(m, field, eq, EXTRACT_UNQUOTE);
@@ -2819,13 +2822,13 @@ int bus_append_unit_property_assignment_many(sd_bus_message *m, UnitType t, char
return 0;
}
-int bus_append_scope_pidref(sd_bus_message *m, const PidRef *pidref) {
+int bus_append_scope_pidref(sd_bus_message *m, const PidRef *pidref, bool allow_pidfd) {
assert(m);
if (!pidref_is_set(pidref))
return -ESRCH;
- if (pidref->fd >= 0)
+ if (pidref->fd >= 0 && allow_pidfd)
return sd_bus_message_append(
m, "(sv)",
"PIDFDs", "ah", 1, pidref->fd);
@@ -2936,3 +2939,107 @@ int bus_service_manager_reload(sd_bus *bus) {
return 0;
}
+
+typedef struct UnitFreezer {
+ char *name;
+ sd_bus *bus;
+} UnitFreezer;
+
+/* Wait for 60 seconds at maximum for freezer operation */
+#define FREEZE_BUS_CALL_TIMEOUT (60 * USEC_PER_SEC)
+
+UnitFreezer* unit_freezer_free(UnitFreezer *f) {
+ if (!f)
+ return NULL;
+
+ free(f->name);
+ sd_bus_flush_close_unref(f->bus);
+
+ return mfree(f);
+}
+
+int unit_freezer_new(const char *name, UnitFreezer **ret) {
+ _cleanup_(unit_freezer_freep) UnitFreezer *f = NULL;
+ int r;
+
+ assert(name);
+ assert(ret);
+
+ f = new(UnitFreezer, 1);
+ if (!f)
+ return log_oom();
+
+ *f = (UnitFreezer) {
+ .name = strdup(name),
+ };
+ if (!f->name)
+ return log_oom();
+
+ r = bus_connect_system_systemd(&f->bus);
+ if (r < 0)
+ return log_error_errno(r, "Failed to open connection to systemd: %m");
+
+ (void) sd_bus_set_method_call_timeout(f->bus, FREEZE_BUS_CALL_TIMEOUT);
+
+ *ret = TAKE_PTR(f);
+ return 0;
+}
+
+static int unit_freezer_action(UnitFreezer *f, bool freeze) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ int r;
+
+ assert(f);
+ assert(f->name);
+ assert(f->bus);
+
+ r = bus_call_method(f->bus, bus_systemd_mgr,
+ freeze ? "FreezeUnit" : "ThawUnit",
+ &error,
+ /* reply = */ NULL,
+ "s",
+ f->name);
+ if (r < 0) {
+ if (sd_bus_error_has_names(&error,
+ BUS_ERROR_NO_SUCH_UNIT,
+ BUS_ERROR_UNIT_INACTIVE,
+ SD_BUS_ERROR_NOT_SUPPORTED)) {
+
+ log_debug_errno(r, "Skipping freezer for '%s': %s", f->name, bus_error_message(&error, r));
+ return 0;
+ }
+
+ return log_error_errno(r, "Failed to %s unit '%s': %s",
+ freeze ? "freeze" : "thaw", f->name, bus_error_message(&error, r));
+ }
+
+ log_info("Successfully %s unit '%s'.", freeze ? "froze" : "thawed", f->name);
+ return 1;
+}
+
+int unit_freezer_freeze(UnitFreezer *f) {
+ return unit_freezer_action(f, true);
+}
+
+int unit_freezer_thaw(UnitFreezer *f) {
+ return unit_freezer_action(f, false);
+}
+
+int unit_freezer_new_freeze(const char *name, UnitFreezer **ret) {
+ _cleanup_(unit_freezer_freep) UnitFreezer *f = NULL;
+ int r;
+
+ assert(name);
+ assert(ret);
+
+ r = unit_freezer_new(name, &f);
+ if (r < 0)
+ return r;
+
+ r = unit_freezer_freeze(f);
+ if (r < 0)
+ return r;
+
+ *ret = TAKE_PTR(f);
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 11:26:49 +0000