From 19f4f86bfed21c5326ed2acebe1163f3a83e832b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 04:25:50 +0200 Subject: Adding upstream version 241. Signed-off-by: Daniel Baumann --- src/shared/bus-unit-util.c | 2547 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2547 insertions(+) create mode 100644 src/shared/bus-unit-util.c (limited to 'src/shared/bus-unit-util.c') diff --git a/src/shared/bus-unit-util.c b/src/shared/bus-unit-util.c new file mode 100644 index 0000000..9a8051d --- /dev/null +++ b/src/shared/bus-unit-util.c @@ -0,0 +1,2547 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ + +#include "alloc-util.h" +#include "bus-internal.h" +#include "bus-unit-util.h" +#include "bus-util.h" +#include "cap-list.h" +#include "cgroup-util.h" +#include "condition.h" +#include "cpu-set-util.h" +#include "env-util.h" +#include "errno-list.h" +#include "escape.h" +#include "hashmap.h" +#include "hexdecoct.h" +#include "hostname-util.h" +#include "in-addr-util.h" +#include "ip-protocol-list.h" +#include "list.h" +#include "locale-util.h" +#include "missing_fs.h" +#include "mountpoint-util.h" +#include "nsflags.h" +#include "parse-util.h" +#include "path-util.h" +#include "process-util.h" +#include "rlimit-util.h" +#include "securebits-util.h" +#include "signal-util.h" +#include "string-util.h" +#include "syslog-util.h" +#include "terminal-util.h" +#include "unit-def.h" +#include "user-util.h" +#include "utf8.h" +#include "util.h" + +int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) { + assert(message); + assert(u); + + u->machine = NULL; + + return sd_bus_message_read( + message, + "(ssssssouso)", + &u->id, + &u->description, + &u->load_state, + &u->active_state, + &u->sub_state, + &u->following, + &u->unit_path, + &u->job_id, + &u->job_type, + &u->job_path); +} + +#define DEFINE_BUS_APPEND_PARSE_PTR(bus_type, cast_type, type, parse_func) \ + static int bus_append_##parse_func( \ + sd_bus_message *m, \ + const char *field, \ + const char *eq) { \ + type val; \ + int r; \ + \ + r = parse_func(eq, &val); \ + if (r < 0) \ + return log_error_errno(r, "Failed to parse %s=%s: %m", field, eq); \ + \ + r = sd_bus_message_append(m, "(sv)", field, \ + bus_type, (cast_type) val); \ + if (r < 0) \ + return bus_log_create_error(r); \ + \ + return 1; \ + } + +#define DEFINE_BUS_APPEND_PARSE(bus_type, parse_func) \ + static int bus_append_##parse_func( \ + sd_bus_message *m, \ + const char *field, \ + const char *eq) { \ + int r; \ + \ + r = parse_func(eq); \ + if (r < 0) \ + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse %s: %s", field, eq); \ + \ + r = sd_bus_message_append(m, "(sv)", field, \ + bus_type, (int32_t) r); \ + if (r < 0) \ + return bus_log_create_error(r); \ + \ + return 1; \ + } + +DEFINE_BUS_APPEND_PARSE("b", parse_boolean); +DEFINE_BUS_APPEND_PARSE("i", ioprio_class_from_string); +DEFINE_BUS_APPEND_PARSE("i", ip_tos_from_string); +DEFINE_BUS_APPEND_PARSE("i", log_facility_unshifted_from_string); +DEFINE_BUS_APPEND_PARSE("i", log_level_from_string); +DEFINE_BUS_APPEND_PARSE("i", parse_errno); +DEFINE_BUS_APPEND_PARSE("i", sched_policy_from_string); +DEFINE_BUS_APPEND_PARSE("i", secure_bits_from_string); +DEFINE_BUS_APPEND_PARSE("i", signal_from_string); +DEFINE_BUS_APPEND_PARSE("i", parse_ip_protocol); +DEFINE_BUS_APPEND_PARSE_PTR("i", int32_t, int, ioprio_parse_priority); +DEFINE_BUS_APPEND_PARSE_PTR("i", int32_t, int, parse_nice); +DEFINE_BUS_APPEND_PARSE_PTR("i", int32_t, int, safe_atoi); +DEFINE_BUS_APPEND_PARSE_PTR("t", uint64_t, nsec_t, parse_nsec); +DEFINE_BUS_APPEND_PARSE_PTR("t", uint64_t, uint64_t, cg_blkio_weight_parse); +DEFINE_BUS_APPEND_PARSE_PTR("t", uint64_t, uint64_t, cg_cpu_shares_parse); +DEFINE_BUS_APPEND_PARSE_PTR("t", uint64_t, uint64_t, cg_weight_parse); +DEFINE_BUS_APPEND_PARSE_PTR("t", uint64_t, unsigned long, mount_propagation_flags_from_string); +DEFINE_BUS_APPEND_PARSE_PTR("t", uint64_t, uint64_t, safe_atou64); +DEFINE_BUS_APPEND_PARSE_PTR("u", uint32_t, mode_t, parse_mode); +DEFINE_BUS_APPEND_PARSE_PTR("u", uint32_t, unsigned, safe_atou); +DEFINE_BUS_APPEND_PARSE_PTR("x", int64_t, int64_t, safe_atoi64); + +static int bus_append_string(sd_bus_message *m, const char *field, const char *eq) { + int r; + + r = sd_bus_message_append(m, "(sv)", field, "s", eq); + if (r < 0) + return bus_log_create_error(r); + + return 1; +} + +static int bus_append_strv(sd_bus_message *m, const char *field, const char *eq, ExtractFlags flags) { + const char *p; + int r; + + r = sd_bus_message_open_container(m, 'r', "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, 's', field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "as"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "s"); + if (r < 0) + return bus_log_create_error(r); + + for (p = eq;;) { + _cleanup_free_ char *word = NULL; + + r = extract_first_word(&p, &word, NULL, flags); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) + return log_error_errno(r, "Invalid syntax: %s", eq); + + r = sd_bus_message_append_basic(m, 's', word); + if (r < 0) + return bus_log_create_error(r); + } + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; +} + +static int bus_append_byte_array(sd_bus_message *m, const char *field, const void *buf, size_t n) { + int r; + + r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "ay"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_array(m, 'y', buf, n); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; +} + +static int bus_append_parse_sec_rename(sd_bus_message *m, const char *field, const char *eq) { + char *n; + usec_t t; + size_t l; + int r; + + r = parse_sec(eq, &t); + if (r < 0) + return log_error_errno(r, "Failed to parse %s=%s: %m", field, eq); + + l = strlen(field); + n = newa(char, l + 2); + /* Change suffix Sec → USec */ + strcpy(mempcpy(n, field, l - 3), "USec"); + + r = sd_bus_message_append(m, "(sv)", n, "t", t); + if (r < 0) + return bus_log_create_error(r); + + return 1; +} + +static int bus_append_parse_size(sd_bus_message *m, const char *field, const char *eq, uint64_t base) { + uint64_t v; + int r; + + r = parse_size(eq, base, &v); + if (r < 0) + return log_error_errno(r, "Failed to parse %s=%s: %m", field, eq); + + r = sd_bus_message_append(m, "(sv)", field, "t", v); + if (r < 0) + return bus_log_create_error(r); + + return 1; +} + +static int bus_append_exec_command(sd_bus_message *m, const char *field, const char *eq) { + bool ignore_failure = false, explicit_path = false, done = false; + _cleanup_strv_free_ char **l = NULL; + _cleanup_free_ char *path = NULL; + int r; + + do { + switch (*eq) { + + case '-': + if (ignore_failure) + done = true; + else { + ignore_failure = true; + eq++; + } + break; + + case '@': + if (explicit_path) + done = true; + else { + explicit_path = true; + eq++; + } + break; + + case '+': + case '!': + /* The bus API doesn't support +, ! and !! currently, unfortunately. :-( */ + return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), + "Sorry, but +, ! and !! are currently not supported for transient services."); + + default: + done = true; + break; + } + } while (!done); + + if (explicit_path) { + r = extract_first_word(&eq, &path, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); + if (r < 0) + return log_error_errno(r, "Failed to parse path: %m"); + } + + r = strv_split_extract(&l, eq, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); + if (r < 0) + return log_error_errno(r, "Failed to parse command line: %m"); + + r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "a(sasb)"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "(sasb)"); + if (r < 0) + return bus_log_create_error(r); + + if (!strv_isempty(l)) { + + r = sd_bus_message_open_container(m, 'r', "sasb"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append(m, "s", path ?: l[0]); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_strv(m, l); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append(m, "b", ignore_failure); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + } + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; +} + +static int bus_append_ip_address_access(sd_bus_message *m, int family, const union in_addr_union *prefix, unsigned char prefixlen) { + int r; + + assert(m); + assert(prefix); + + r = sd_bus_message_open_container(m, 'r', "iayu"); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "i", family); + if (r < 0) + return r; + + r = sd_bus_message_append_array(m, 'y', prefix, FAMILY_ADDRESS_SIZE(family)); + if (r < 0) + return r; + + r = sd_bus_message_append(m, "u", prefixlen); + if (r < 0) + return r; + + return sd_bus_message_close_container(m); +} + +static int bus_append_cgroup_property(sd_bus_message *m, const char *field, const char *eq) { + int r; + + if (STR_IN_SET(field, "DevicePolicy", "Slice")) + + return bus_append_string(m, field, eq); + + if (STR_IN_SET(field, + "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", + "TasksAccounting", "IPAccounting")) + + return bus_append_parse_boolean(m, field, eq); + + if (STR_IN_SET(field, "CPUWeight", "StartupCPUWeight", "IOWeight", "StartupIOWeight")) + + return bus_append_cg_weight_parse(m, field, eq); + + if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) + + return bus_append_cg_cpu_shares_parse(m, field, eq); + + if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) + + return bus_append_cg_blkio_weight_parse(m, field, eq); + + if (streq(field, "Delegate")) { + + r = parse_boolean(eq); + if (r < 0) + return bus_append_strv(m, "DelegateControllers", eq, EXTRACT_QUOTES); + + r = sd_bus_message_append(m, "(sv)", "Delegate", "b", r); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (STR_IN_SET(field, "MemoryMin", "MemoryLow", "MemoryHigh", "MemoryMax", "MemorySwapMax", "MemoryLimit", "TasksMax")) { + + if (isempty(eq) || streq(eq, "infinity")) { + r = sd_bus_message_append(m, "(sv)", field, "t", CGROUP_LIMIT_MAX); + if (r < 0) + return bus_log_create_error(r); + return 1; + } + + r = parse_permille(eq); + if (r >= 0) { + char *n; + + /* When this is a percentage we'll convert this into a relative value in the range 0…UINT32_MAX + * and pass it in the MemoryLowScale property (and related ones). This way the physical memory + * size can be determined server-side. */ + + n = strjoina(field, "Scale"); + r = sd_bus_message_append(m, "(sv)", n, "u", (uint32_t) (((uint64_t) r * UINT32_MAX) / 1000U)); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "TasksMax")) + return bus_append_safe_atou64(m, field, eq); + + return bus_append_parse_size(m, field, eq, 1024); + } + + if (streq(field, "CPUQuota")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", "CPUQuotaPerSecUSec", "t", USEC_INFINITY); + else { + r = parse_permille_unbounded(eq); + if (r == 0) + return log_error_errno(SYNTHETIC_ERRNO(ERANGE), + "CPU quota too small."); + if (r < 0) + return log_error_errno(r, "CPU quota '%s' invalid.", eq); + + r = sd_bus_message_append(m, "(sv)", "CPUQuotaPerSecUSec", "t", (((uint64_t) r * USEC_PER_SEC) / 1000U)); + } + + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "DeviceAllow")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", field, "a(ss)", 0); + else { + const char *path = eq, *rwm = NULL, *e; + + e = strchr(eq, ' '); + if (e) { + path = strndupa(eq, e - eq); + rwm = e+1; + } + + r = sd_bus_message_append(m, "(sv)", field, "a(ss)", 1, path, strempty(rwm)); + } + + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", field, "a(st)", 0); + else { + const char *path, *bandwidth, *e; + uint64_t bytes; + + e = strchr(eq, ' '); + if (!e) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Failed to parse %s value %s.", + field, eq); + + path = strndupa(eq, e - eq); + bandwidth = e+1; + + if (streq(bandwidth, "infinity")) + bytes = CGROUP_LIMIT_MAX; + else { + r = parse_size(bandwidth, 1000, &bytes); + if (r < 0) + return log_error_errno(r, "Failed to parse byte value %s: %m", bandwidth); + } + + r = sd_bus_message_append(m, "(sv)", field, "a(st)", 1, path, bytes); + } + + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", field, "a(st)", 0); + else { + const char *path, *weight, *e; + uint64_t u; + + e = strchr(eq, ' '); + if (!e) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Failed to parse %s value %s.", + field, eq); + + path = strndupa(eq, e - eq); + weight = e+1; + + r = safe_atou64(weight, &u); + if (r < 0) + return log_error_errno(r, "Failed to parse %s value %s: %m", field, weight); + + r = sd_bus_message_append(m, "(sv)", field, "a(st)", 1, path, u); + } + + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "IODeviceLatencyTargetSec")) { + const char *field_usec = "IODeviceLatencyTargetUSec"; + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", field_usec, "a(st)", USEC_INFINITY); + else { + const char *path, *target, *e; + usec_t usec; + + e = strchr(eq, ' '); + if (!e) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Failed to parse %s value %s.", + field, eq); + + path = strndupa(eq, e - eq); + target = e+1; + + r = parse_sec(target, &usec); + if (r < 0) + return log_error_errno(r, "Failed to parse %s value %s: %m", field, target); + + r = sd_bus_message_append(m, "(sv)", field_usec, "a(st)", 1, path, usec); + } + + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (STR_IN_SET(field, "IPAddressAllow", "IPAddressDeny")) { + unsigned char prefixlen; + union in_addr_union prefix = {}; + int family; + + if (isempty(eq)) { + r = sd_bus_message_append(m, "(sv)", field, "a(iayu)", 0); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "a(iayu)"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "(iayu)"); + if (r < 0) + return bus_log_create_error(r); + + if (streq(eq, "any")) { + /* "any" is a shortcut for 0.0.0.0/0 and ::/0 */ + + r = bus_append_ip_address_access(m, AF_INET, &prefix, 0); + if (r < 0) + return bus_log_create_error(r); + + r = bus_append_ip_address_access(m, AF_INET6, &prefix, 0); + if (r < 0) + return bus_log_create_error(r); + + } else if (is_localhost(eq)) { + /* "localhost" is a shortcut for 127.0.0.0/8 and ::1/128 */ + + prefix.in.s_addr = htobe32(0x7f000000); + r = bus_append_ip_address_access(m, AF_INET, &prefix, 8); + if (r < 0) + return bus_log_create_error(r); + + prefix.in6 = (struct in6_addr) IN6ADDR_LOOPBACK_INIT; + r = bus_append_ip_address_access(m, AF_INET6, &prefix, 128); + if (r < 0) + return r; + + } else if (streq(eq, "link-local")) { + /* "link-local" is a shortcut for 169.254.0.0/16 and fe80::/64 */ + + prefix.in.s_addr = htobe32((UINT32_C(169) << 24 | UINT32_C(254) << 16)); + r = bus_append_ip_address_access(m, AF_INET, &prefix, 16); + if (r < 0) + return bus_log_create_error(r); + + prefix.in6 = (struct in6_addr) { + .s6_addr32[0] = htobe32(0xfe800000) + }; + r = bus_append_ip_address_access(m, AF_INET6, &prefix, 64); + if (r < 0) + return bus_log_create_error(r); + + } else if (streq(eq, "multicast")) { + /* "multicast" is a shortcut for 224.0.0.0/4 and ff00::/8 */ + + prefix.in.s_addr = htobe32((UINT32_C(224) << 24)); + r = bus_append_ip_address_access(m, AF_INET, &prefix, 4); + if (r < 0) + return bus_log_create_error(r); + + prefix.in6 = (struct in6_addr) { + .s6_addr32[0] = htobe32(0xff000000) + }; + r = bus_append_ip_address_access(m, AF_INET6, &prefix, 8); + if (r < 0) + return bus_log_create_error(r); + + } else { + for (;;) { + _cleanup_free_ char *word = NULL; + + r = extract_first_word(&eq, &word, NULL, 0); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) + return log_error_errno(r, "Failed to parse %s: %s", field, eq); + + r = in_addr_prefix_from_string_auto(word, &family, &prefix, &prefixlen); + if (r < 0) + return log_error_errno(r, "Failed to parse IP address prefix: %s", word); + + r = bus_append_ip_address_access(m, family, &prefix, prefixlen); + if (r < 0) + return bus_log_create_error(r); + } + } + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + return 0; +} + +static int bus_append_automount_property(sd_bus_message *m, const char *field, const char *eq) { + + if (streq(field, "Where")) + + return bus_append_string(m, field, eq); + + if (streq(field, "DirectoryMode")) + + return bus_append_parse_mode(m, field, eq); + + if (streq(field, "TimeoutIdleSec")) + + return bus_append_parse_sec_rename(m, field, eq); + + return 0; +} + +static int bus_append_execute_property(sd_bus_message *m, const char *field, const char *eq) { + const char *suffix; + int r; + + if (STR_IN_SET(field, + "User", "Group", + "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath", + "WorkingDirectory", "RootDirectory", "SyslogIdentifier", + "ProtectSystem", "ProtectHome", "SELinuxContext", "RootImage", + "RuntimeDirectoryPreserve", "Personality", "KeyringMode")) + + return bus_append_string(m, field, eq); + + if (STR_IN_SET(field, + "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "TTYVTDisallocate", + "PrivateTmp", "PrivateDevices", "PrivateNetwork", "PrivateUsers", + "PrivateMounts", "NoNewPrivileges", "SyslogLevelPrefix", + "MemoryDenyWriteExecute", "RestrictRealtime", "DynamicUser", "RemoveIPC", + "ProtectKernelTunables", "ProtectKernelModules", "ProtectControlGroups", + "MountAPIVFS", "CPUSchedulingResetOnFork", "LockPersonality")) + + return bus_append_parse_boolean(m, field, eq); + + if (STR_IN_SET(field, + "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories", + "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths", + "RuntimeDirectory", "StateDirectory", "CacheDirectory", "LogsDirectory", "ConfigurationDirectory", + "SupplementaryGroups", "SystemCallArchitectures")) + + return bus_append_strv(m, field, eq, EXTRACT_QUOTES); + + if (STR_IN_SET(field, "SyslogLevel", "LogLevelMax")) + + return bus_append_log_level_from_string(m, field, eq); + + if (streq(field, "SyslogFacility")) + + return bus_append_log_facility_unshifted_from_string(m, field, eq); + + if (streq(field, "SecureBits")) + + return bus_append_secure_bits_from_string(m, field, eq); + + if (streq(field, "CPUSchedulingPolicy")) + + return bus_append_sched_policy_from_string(m, field, eq); + + if (STR_IN_SET(field, "CPUSchedulingPriority", "OOMScoreAdjust")) + + return bus_append_safe_atoi(m, field, eq); + + if (streq(field, "Nice")) + + return bus_append_parse_nice(m, field, eq); + + if (streq(field, "SystemCallErrorNumber")) + + return bus_append_parse_errno(m, field, eq); + + if (streq(field, "IOSchedulingClass")) + + return bus_append_ioprio_class_from_string(m, field, eq); + + if (streq(field, "IOSchedulingPriority")) + + return bus_append_ioprio_parse_priority(m, field, eq); + + if (STR_IN_SET(field, + "RuntimeDirectoryMode", "StateDirectoryMode", "CacheDirectoryMode", + "LogsDirectoryMode", "ConfigurationDirectoryMode", "UMask")) + + return bus_append_parse_mode(m, field, eq); + + if (streq(field, "TimerSlackNSec")) + + return bus_append_parse_nsec(m, field, eq); + + if (streq(field, "LogRateLimitIntervalSec")) + + return bus_append_parse_sec_rename(m, field, eq); + + if (streq(field, "LogRateLimitBurst")) + + return bus_append_safe_atou(m, field, eq); + + if (streq(field, "MountFlags")) + + return bus_append_mount_propagation_flags_from_string(m, field, eq); + + if (STR_IN_SET(field, "Environment", "UnsetEnvironment", "PassEnvironment")) + + return bus_append_strv(m, field, eq, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); + + if (streq(field, "EnvironmentFile")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", "EnvironmentFiles", "a(sb)", 0); + else + r = sd_bus_message_append(m, "(sv)", "EnvironmentFiles", "a(sb)", 1, + eq[0] == '-' ? eq + 1 : eq, + eq[0] == '-'); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "LogExtraFields")) { + + r = sd_bus_message_open_container(m, 'r', "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, 's', "LogExtraFields"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "aay"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "ay"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_array(m, 'y', eq, strlen(eq)); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (STR_IN_SET(field, "StandardInput", "StandardOutput", "StandardError")) { + const char *n, *appended; + + if ((n = startswith(eq, "fd:"))) { + appended = strjoina(field, "FileDescriptorName"); + r = sd_bus_message_append(m, "(sv)", appended, "s", n); + } else if ((n = startswith(eq, "file:"))) { + appended = strjoina(field, "File"); + r = sd_bus_message_append(m, "(sv)", appended, "s", n); + } else if ((n = startswith(eq, "append:"))) { + appended = strjoina(field, "FileToAppend"); + r = sd_bus_message_append(m, "(sv)", appended, "s", n); + } else + r = sd_bus_message_append(m, "(sv)", field, "s", eq); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "StandardInputText")) { + _cleanup_free_ char *unescaped = NULL; + + r = cunescape(eq, 0, &unescaped); + if (r < 0) + return log_error_errno(r, "Failed to unescape text '%s': %m", eq); + + if (!strextend(&unescaped, "\n", NULL)) + return log_oom(); + + /* Note that we don't expand specifiers here, but that should be OK, as this is a programmatic + * interface anyway */ + + return bus_append_byte_array(m, field, unescaped, strlen(unescaped)); + } + + if (streq(field, "StandardInputData")) { + _cleanup_free_ void *decoded = NULL; + size_t sz; + + r = unbase64mem(eq, (size_t) -1, &decoded, &sz); + if (r < 0) + return log_error_errno(r, "Failed to decode base64 data '%s': %m", eq); + + return bus_append_byte_array(m, field, decoded, sz); + } + + if ((suffix = startswith(field, "Limit"))) { + int rl; + + rl = rlimit_from_string(suffix); + if (rl >= 0) { + const char *sn; + struct rlimit l; + + r = rlimit_parse(rl, eq, &l); + if (r < 0) + return log_error_errno(r, "Failed to parse resource limit: %s", eq); + + r = sd_bus_message_append(m, "(sv)", field, "t", l.rlim_max); + if (r < 0) + return bus_log_create_error(r); + + sn = strjoina(field, "Soft"); + r = sd_bus_message_append(m, "(sv)", sn, "t", l.rlim_cur); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + } + + if (STR_IN_SET(field, "AppArmorProfile", "SmackProcessLabel")) { + int ignore = 0; + const char *s = eq; + + if (eq[0] == '-') { + ignore = 1; + s = eq + 1; + } + + r = sd_bus_message_append(m, "(sv)", field, "(bs)", ignore, s); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (STR_IN_SET(field, "CapabilityBoundingSet", "AmbientCapabilities")) { + uint64_t sum = 0; + bool invert = false; + const char *p = eq; + + if (*p == '~') { + invert = true; + p++; + } + + r = capability_set_from_string(p, &sum); + if (r < 0) + return log_error_errno(r, "Failed to parse %s value %s: %m", field, eq); + + sum = invert ? ~sum : sum; + + r = sd_bus_message_append(m, "(sv)", field, "t", sum); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "CPUAffinity")) { + _cleanup_cpu_free_ cpu_set_t *cpuset = NULL; + + r = parse_cpu_set(eq, &cpuset); + if (r < 0) + return log_error_errno(r, "Failed to parse %s value: %s", field, eq); + + return bus_append_byte_array(m, field, cpuset, CPU_ALLOC_SIZE(r)); + } + + if (STR_IN_SET(field, "RestrictAddressFamilies", "SystemCallFilter")) { + int whitelist = 1; + const char *p = eq; + + if (*p == '~') { + whitelist = 0; + p++; + } + + r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "(bas)"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'r', "bas"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, 'b', &whitelist); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "s"); + if (r < 0) + return bus_log_create_error(r); + + for (;;) { + _cleanup_free_ char *word = NULL; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) + return log_error_errno(r, "Invalid syntax: %s", eq); + + r = sd_bus_message_append_basic(m, 's', word); + if (r < 0) + return bus_log_create_error(r); + } + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "RestrictNamespaces")) { + bool invert = false; + unsigned long flags; + + r = parse_boolean(eq); + if (r > 0) + flags = 0; + else if (r == 0) + flags = NAMESPACE_FLAGS_ALL; + else { + if (eq[0] == '~') { + invert = true; + eq++; + } + + r = namespace_flags_from_string(eq, &flags); + if (r < 0) + return log_error_errno(r, "Failed to parse %s value %s.", field, eq); + } + + if (invert) + flags = (~flags) & NAMESPACE_FLAGS_ALL; + + r = sd_bus_message_append(m, "(sv)", field, "t", (uint64_t) flags); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (STR_IN_SET(field, "BindPaths", "BindReadOnlyPaths")) { + const char *p = eq; + + r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "a(ssbt)"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "(ssbt)"); + if (r < 0) + return bus_log_create_error(r); + + for (;;) { + _cleanup_free_ char *source = NULL, *destination = NULL; + char *s = NULL, *d = NULL; + bool ignore_enoent = false; + uint64_t flags = MS_REC; + + r = extract_first_word(&p, &source, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS); + if (r < 0) + return log_error_errno(r, "Failed to parse argument: %m"); + if (r == 0) + break; + + s = source; + if (s[0] == '-') { + ignore_enoent = true; + s++; + } + + if (p && p[-1] == ':') { + r = extract_first_word(&p, &destination, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS); + if (r < 0) + return log_error_errno(r, "Failed to parse argument: %m"); + if (r == 0) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Missing argument after ':': %s", + eq); + + d = destination; + + if (p && p[-1] == ':') { + _cleanup_free_ char *options = NULL; + + r = extract_first_word(&p, &options, NULL, EXTRACT_QUOTES); + if (r < 0) + return log_error_errno(r, "Failed to parse argument: %m"); + + if (isempty(options) || streq(options, "rbind")) + flags = MS_REC; + else if (streq(options, "norbind")) + flags = 0; + else + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Unknown options: %s", + eq); + } + } else + d = s; + + r = sd_bus_message_append(m, "(ssbt)", s, d, ignore_enoent, flags); + if (r < 0) + return bus_log_create_error(r); + } + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "TemporaryFileSystem")) { + const char *p = eq; + + r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "a(ss)"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "(ss)"); + if (r < 0) + return bus_log_create_error(r); + + for (;;) { + _cleanup_free_ char *word = NULL, *path = NULL; + const char *w; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r < 0) + return log_error_errno(r, "Failed to parse argument: %m"); + if (r == 0) + break; + + w = word; + r = extract_first_word(&w, &path, ":", EXTRACT_DONT_COALESCE_SEPARATORS); + if (r < 0) + return log_error_errno(r, "Failed to parse argument: %m"); + if (r == 0) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Failed to parse argument: %s", + p); + + r = sd_bus_message_append(m, "(ss)", path, w); + if (r < 0) + return bus_log_create_error(r); + } + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + return 0; +} + +static int bus_append_kill_property(sd_bus_message *m, const char *field, const char *eq) { + + if (streq(field, "KillMode")) + + return bus_append_string(m, field, eq); + + if (STR_IN_SET(field, "SendSIGHUP", "SendSIGKILL")) + + return bus_append_parse_boolean(m, field, eq); + + if (STR_IN_SET(field, "KillSignal", "FinalKillSignal", "WatchdogSignal")) + + return bus_append_signal_from_string(m, field, eq); + + return 0; +} + +static int bus_append_mount_property(sd_bus_message *m, const char *field, const char *eq) { + + if (STR_IN_SET(field, "What", "Where", "Options", "Type")) + + return bus_append_string(m, field, eq); + + if (streq(field, "TimeoutSec")) + + return bus_append_parse_sec_rename(m, field, eq); + + if (streq(field, "DirectoryMode")) + + return bus_append_parse_mode(m, field, eq); + + if (STR_IN_SET(field, "SloppyOptions", "LazyUnmount", "ForceUnmount")) + + return bus_append_parse_boolean(m, field, eq); + + return 0; +} + +static int bus_append_path_property(sd_bus_message *m, const char *field, const char *eq) { + int r; + + if (streq(field, "MakeDirectory")) + + return bus_append_parse_boolean(m, field, eq); + + if (streq(field, "DirectoryMode")) + + return bus_append_parse_mode(m, field, eq); + + if (STR_IN_SET(field, + "PathExists", "PathExistsGlob", "PathChanged", + "PathModified", "DirectoryNotEmpty")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", "Paths", "a(ss)", 0); + else + r = sd_bus_message_append(m, "(sv)", "Paths", "a(ss)", 1, field, eq); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + return 0; +} + +static int bus_append_service_property(sd_bus_message *m, const char *field, const char *eq) { + int r; + + if (STR_IN_SET(field, + "PIDFile", "Type", "Restart", "BusName", "NotifyAccess", + "USBFunctionDescriptors", "USBFunctionStrings")) + + return bus_append_string(m, field, eq); + + if (STR_IN_SET(field, "PermissionsStartOnly", "RootDirectoryStartOnly", "RemainAfterExit", "GuessMainPID")) + + return bus_append_parse_boolean(m, field, eq); + + if (STR_IN_SET(field, "RestartSec", "TimeoutStartSec", "TimeoutStopSec", "RuntimeMaxSec", "WatchdogSec")) + + return bus_append_parse_sec_rename(m, field, eq); + + if (streq(field, "TimeoutSec")) { + + r = bus_append_parse_sec_rename(m, "TimeoutStartSec", eq); + if (r < 0) + return r; + + return bus_append_parse_sec_rename(m, "TimeoutStopSec", eq); + } + + if (streq(field, "FileDescriptorStoreMax")) + + return bus_append_safe_atou(m, field, eq); + + if (STR_IN_SET(field, + "ExecStartPre", "ExecStart", "ExecStartPost", + "ExecReload", "ExecStop", "ExecStopPost")) + + return bus_append_exec_command(m, field, eq); + + if (STR_IN_SET(field, "RestartPreventExitStatus", "RestartForceExitStatus", "SuccessExitStatus")) { + _cleanup_free_ int *status = NULL, *signal = NULL; + size_t sz_status = 0, sz_signal = 0; + const char *p; + + for (p = eq;;) { + _cleanup_free_ char *word = NULL; + int val; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) + return log_error_errno(r, "Invalid syntax in %s: %s", field, eq); + + r = safe_atoi(word, &val); + if (r < 0) { + val = signal_from_string(word); + if (val < 0) + return log_error_errno(r, "Invalid status or signal %s in %s: %m", word, field); + + signal = reallocarray(signal, sz_signal + 1, sizeof(int)); + if (!signal) + return log_oom(); + + signal[sz_signal++] = val; + } else { + status = reallocarray(status, sz_status + 1, sizeof(int)); + if (!status) + return log_oom(); + + status[sz_status++] = val; + } + } + + r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'v', "(aiai)"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'r', "aiai"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_array(m, 'i', status, sz_status); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_array(m, 'i', signal, sz_signal); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + return 0; +} + +static int bus_append_socket_property(sd_bus_message *m, const char *field, const char *eq) { + int r; + + if (STR_IN_SET(field, + "Accept", "Writable", "KeepAlive", "NoDelay", "FreeBind", "Transparent", "Broadcast", + "PassCredentials", "PassSecurity", "ReusePort", "RemoveOnStop", "SELinuxContextFromNet")) + + return bus_append_parse_boolean(m, field, eq); + + if (STR_IN_SET(field, "Priority", "IPTTL", "Mark")) + + return bus_append_safe_atoi(m, field, eq); + + if (streq(field, "IPTOS")) + + return bus_append_ip_tos_from_string(m, field, eq); + + if (STR_IN_SET(field, "Backlog", "MaxConnections", "MaxConnectionsPerSource", "KeepAliveProbes", "TriggerLimitBurst")) + + return bus_append_safe_atou(m, field, eq); + + if (STR_IN_SET(field, "SocketMode", "DirectoryMode")) + + return bus_append_parse_mode(m, field, eq); + + if (STR_IN_SET(field, "MessageQueueMaxMessages", "MessageQueueMessageSize")) + + return bus_append_safe_atoi64(m, field, eq); + + if (STR_IN_SET(field, "TimeoutSec", "KeepAliveTimeSec", "KeepAliveIntervalSec", "DeferAcceptSec", "TriggerLimitIntervalSec")) + + return bus_append_parse_sec_rename(m, field, eq); + + if (STR_IN_SET(field, "ReceiveBuffer", "SendBuffer", "PipeSize")) + + return bus_append_parse_size(m, field, eq, 1024); + + if (STR_IN_SET(field, "ExecStartPre", "ExecStartPost", "ExecReload", "ExecStopPost")) + + return bus_append_exec_command(m, field, eq); + + if (STR_IN_SET(field, + "SmackLabel", "SmackLabelIPIn", "SmackLabelIPOut", "TCPCongestion", + "BindToDevice", "BindIPv6Only", "FileDescriptorName", + "SocketUser", "SocketGroup")) + + return bus_append_string(m, field, eq); + + if (streq(field, "Symlinks")) + + return bus_append_strv(m, field, eq, EXTRACT_QUOTES); + + if (streq(field, "SocketProtocol")) + + return bus_append_parse_ip_protocol(m, field, eq); + + if (STR_IN_SET(field, + "ListenStream", "ListenDatagram", "ListenSequentialPacket", "ListenNetlink", + "ListenSpecial", "ListenMessageQueue", "ListenFIFO", "ListenUSBFunction")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", "Listen", "a(ss)", 0); + else + r = sd_bus_message_append(m, "(sv)", "Listen", "a(ss)", 1, field + STRLEN("Listen"), eq); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + return 0; +} +static int bus_append_timer_property(sd_bus_message *m, const char *field, const char *eq) { + int r; + + if (STR_IN_SET(field, "WakeSystem", "RemainAfterElapse", "Persistent")) + + return bus_append_parse_boolean(m, field, eq); + + if (STR_IN_SET(field, "AccuracySec", "RandomizedDelaySec")) + + return bus_append_parse_sec_rename(m, field, eq); + + if (STR_IN_SET(field, + "OnActiveSec", "OnBootSec", "OnStartupSec", + "OnUnitActiveSec","OnUnitInactiveSec")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", "TimersMonotonic", "a(st)", 0); + else { + usec_t t; + r = parse_sec(eq, &t); + if (r < 0) + return log_error_errno(r, "Failed to parse %s=%s: %m", field, eq); + + r = sd_bus_message_append(m, "(sv)", "TimersMonotonic", "a(st)", 1, field, t); + } + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (streq(field, "OnCalendar")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", "TimersCalendar", "a(ss)", 0); + else + r = sd_bus_message_append(m, "(sv)", "TimersCalendar", "a(ss)", 1, field, eq); + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + return 0; +} + +static int bus_append_unit_property(sd_bus_message *m, const char *field, const char *eq) { + ConditionType t = _CONDITION_TYPE_INVALID; + bool is_condition = false; + int r; + + if (STR_IN_SET(field, + "Description", "SourcePath", "OnFailureJobMode", + "JobTimeoutAction", "JobTimeoutRebootArgument", + "StartLimitAction", "FailureAction", "SuccessAction", + "RebootArgument", "CollectMode")) + + return bus_append_string(m, field, eq); + + if (STR_IN_SET(field, + "StopWhenUnneeded", "RefuseManualStart", "RefuseManualStop", + "AllowIsolate", "IgnoreOnIsolate", "DefaultDependencies")) + + return bus_append_parse_boolean(m, field, eq); + + if (STR_IN_SET(field, "JobTimeoutSec", "JobRunningTimeoutSec", "StartLimitIntervalSec")) + + return bus_append_parse_sec_rename(m, field, eq); + + if (streq(field, "StartLimitBurst")) + + return bus_append_safe_atou(m, field, eq); + + if (STR_IN_SET(field, "SuccessActionExitStatus", "FailureActionExitStatus")) { + + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", field, "i", -1); + else { + uint8_t u; + + r = safe_atou8(eq, &u); + if (r < 0) + return log_error_errno(r, "Failed to parse %s=%s", field, eq); + + r = sd_bus_message_append(m, "(sv)", field, "i", (int) u); + } + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + if (unit_dependency_from_string(field) >= 0 || + STR_IN_SET(field, "Documentation", "RequiresMountsFor")) + + return bus_append_strv(m, field, eq, EXTRACT_QUOTES); + + t = condition_type_from_string(field); + if (t >= 0) + is_condition = true; + else + t = assert_type_from_string(field); + if (t >= 0) { + if (isempty(eq)) + r = sd_bus_message_append(m, "(sv)", is_condition ? "Conditions" : "Asserts", "a(sbbs)", 0); + else { + const char *p = eq; + int trigger, negate; + + trigger = *p == '|'; + if (trigger) + p++; + + negate = *p == '!'; + if (negate) + p++; + + r = sd_bus_message_append(m, "(sv)", is_condition ? "Conditions" : "Asserts", "a(sbbs)", 1, + field, trigger, negate, p); + } + if (r < 0) + return bus_log_create_error(r); + + return 1; + } + + return 0; +} + +int bus_append_unit_property_assignment(sd_bus_message *m, UnitType t, const char *assignment) { + const char *eq, *field; + int r; + + assert(m); + assert(assignment); + + eq = strchr(assignment, '='); + if (!eq) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Not an assignment: %s", assignment); + + field = strndupa(assignment, eq - assignment); + eq++; + + switch (t) { + case UNIT_SERVICE: + r = bus_append_cgroup_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_execute_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_kill_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_service_property(m, field, eq); + if (r != 0) + return r; + break; + + case UNIT_SOCKET: + r = bus_append_cgroup_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_execute_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_kill_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_socket_property(m, field, eq); + if (r != 0) + return r; + break; + + case UNIT_TIMER: + r = bus_append_timer_property(m, field, eq); + if (r != 0) + return r; + break; + + case UNIT_PATH: + r = bus_append_path_property(m, field, eq); + if (r != 0) + return r; + break; + + case UNIT_SLICE: + r = bus_append_cgroup_property(m, field, eq); + if (r != 0) + return r; + break; + + case UNIT_SCOPE: + + if (streq(field, "TimeoutStopSec")) + return bus_append_parse_sec_rename(m, field, eq); + + r = bus_append_cgroup_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_kill_property(m, field, eq); + if (r != 0) + return r; + break; + + case UNIT_MOUNT: + r = bus_append_cgroup_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_execute_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_kill_property(m, field, eq); + if (r != 0) + return r; + + r = bus_append_mount_property(m, field, eq); + if (r != 0) + return r; + + break; + + case UNIT_AUTOMOUNT: + r = bus_append_automount_property(m, field, eq); + if (r != 0) + return r; + + break; + + case UNIT_TARGET: + case UNIT_DEVICE: + case UNIT_SWAP: + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Not supported unit type"); + + default: + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Invalid unit type"); + } + + r = bus_append_unit_property(m, field, eq); + if (r != 0) + return r; + + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "Unknown assignment: %s", assignment); +} + +int bus_append_unit_property_assignment_many(sd_bus_message *m, UnitType t, char **l) { + char **i; + int r; + + assert(m); + + STRV_FOREACH(i, l) { + r = bus_append_unit_property_assignment(m, t, *i); + if (r < 0) + return r; + } + + return 0; +} + +typedef struct BusWaitForJobs { + sd_bus *bus; + Set *jobs; + + char *name; + char *result; + + sd_bus_slot *slot_job_removed; + sd_bus_slot *slot_disconnected; +} BusWaitForJobs; + +static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) { + assert(m); + + log_error("Warning! D-Bus connection terminated."); + sd_bus_close(sd_bus_message_get_bus(m)); + + return 0; +} + +static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) { + const char *path, *unit, *result; + BusWaitForJobs *d = userdata; + uint32_t id; + char *found; + int r; + + assert(m); + assert(d); + + r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result); + if (r < 0) { + bus_log_parse_error(r); + return 0; + } + + found = set_remove(d->jobs, (char*) path); + if (!found) + return 0; + + free(found); + + if (!isempty(result)) + d->result = strdup(result); + + if (!isempty(unit)) + d->name = strdup(unit); + + return 0; +} + +void bus_wait_for_jobs_free(BusWaitForJobs *d) { + if (!d) + return; + + set_free_free(d->jobs); + + sd_bus_slot_unref(d->slot_disconnected); + sd_bus_slot_unref(d->slot_job_removed); + + sd_bus_unref(d->bus); + + free(d->name); + free(d->result); + + free(d); +} + +int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) { + _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL; + int r; + + assert(bus); + assert(ret); + + d = new0(BusWaitForJobs, 1); + if (!d) + return -ENOMEM; + + d->bus = sd_bus_ref(bus); + + /* When we are a bus client we match by sender. Direct + * connections OTOH have no initialized sender field, and + * hence we ignore the sender then */ + r = sd_bus_match_signal_async( + bus, + &d->slot_job_removed, + bus->bus_client ? "org.freedesktop.systemd1" : NULL, + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "JobRemoved", + match_job_removed, NULL, d); + if (r < 0) + return r; + + r = sd_bus_match_signal_async( + bus, + &d->slot_disconnected, + "org.freedesktop.DBus.Local", + NULL, + "org.freedesktop.DBus.Local", + "Disconnected", + match_disconnected, NULL, d); + if (r < 0) + return r; + + *ret = TAKE_PTR(d); + + return 0; +} + +static int bus_process_wait(sd_bus *bus) { + int r; + + for (;;) { + r = sd_bus_process(bus, NULL); + if (r < 0) + return r; + if (r > 0) + return 0; + + r = sd_bus_wait(bus, (uint64_t) -1); + if (r < 0) + return r; + } +} + +static int bus_job_get_service_result(BusWaitForJobs *d, char **result) { + _cleanup_free_ char *dbus_path = NULL; + + assert(d); + assert(d->name); + assert(result); + + if (!endswith(d->name, ".service")) + return -EINVAL; + + dbus_path = unit_dbus_path_from_name(d->name); + if (!dbus_path) + return -ENOMEM; + + return sd_bus_get_property_string(d->bus, + "org.freedesktop.systemd1", + dbus_path, + "org.freedesktop.systemd1.Service", + "Result", + NULL, + result); +} + +static const struct { + const char *result, *explanation; +} explanations [] = { + { "resources", "of unavailable resources or another system error" }, + { "protocol", "the service did not take the steps required by its unit configuration" }, + { "timeout", "a timeout was exceeded" }, + { "exit-code", "the control process exited with error code" }, + { "signal", "a fatal signal was delivered to the control process" }, + { "core-dump", "a fatal signal was delivered causing the control process to dump core" }, + { "watchdog", "the service failed to send watchdog ping" }, + { "start-limit", "start of the service was attempted too often" } +}; + +static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) { + _cleanup_free_ char *service_shell_quoted = NULL; + const char *systemctl = "systemctl", *journalctl = "journalctl"; + + assert(service); + + service_shell_quoted = shell_maybe_quote(service, ESCAPE_BACKSLASH); + + if (!strv_isempty((char**) extra_args)) { + _cleanup_free_ char *t; + + t = strv_join((char**) extra_args, " "); + systemctl = strjoina("systemctl ", t ? : ""); + journalctl = strjoina("journalctl ", t ? : ""); + } + + if (!isempty(result)) { + unsigned i; + + for (i = 0; i < ELEMENTSOF(explanations); ++i) + if (streq(result, explanations[i].result)) + break; + + if (i < ELEMENTSOF(explanations)) { + log_error("Job for %s failed because %s.\n" + "See \"%s status %s\" and \"%s -xe\" for details.\n", + service, + explanations[i].explanation, + systemctl, + service_shell_quoted ?: "", + journalctl); + goto finish; + } + } + + log_error("Job for %s failed.\n" + "See \"%s status %s\" and \"%s -xe\" for details.\n", + service, + systemctl, + service_shell_quoted ?: "", + journalctl); + +finish: + /* For some results maybe additional explanation is required */ + if (streq_ptr(result, "start-limit")) + log_info("To force a start use \"%1$s reset-failed %2$s\"\n" + "followed by \"%1$s start %2$s\" again.", + systemctl, + service_shell_quoted ?: ""); +} + +static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { + assert(d->result); + + if (!quiet) { + if (streq(d->result, "canceled")) + log_error("Job for %s canceled.", strna(d->name)); + else if (streq(d->result, "timeout")) + log_error("Job for %s timed out.", strna(d->name)); + else if (streq(d->result, "dependency")) + log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name)); + else if (streq(d->result, "invalid")) + log_error("%s is not active, cannot reload.", strna(d->name)); + else if (streq(d->result, "assert")) + log_error("Assertion failed on job for %s.", strna(d->name)); + else if (streq(d->result, "unsupported")) + log_error("Operation on or unit type of %s not supported on this system.", strna(d->name)); + else if (streq(d->result, "collected")) + log_error("Queued job for %s was garbage collected.", strna(d->name)); + else if (streq(d->result, "once")) + log_error("Unit %s was started already once and can't be started again.", strna(d->name)); + else if (!STR_IN_SET(d->result, "done", "skipped")) { + if (d->name) { + _cleanup_free_ char *result = NULL; + int q; + + q = bus_job_get_service_result(d, &result); + if (q < 0) + log_debug_errno(q, "Failed to get Result property of unit %s: %m", d->name); + + log_job_error_with_service_result(d->name, result, extra_args); + } else + log_error("Job failed. See \"journalctl -xe\" for details."); + } + } + + if (STR_IN_SET(d->result, "canceled", "collected")) + return -ECANCELED; + else if (streq(d->result, "timeout")) + return -ETIME; + else if (streq(d->result, "dependency")) + return -EIO; + else if (streq(d->result, "invalid")) + return -ENOEXEC; + else if (streq(d->result, "assert")) + return -EPROTO; + else if (streq(d->result, "unsupported")) + return -EOPNOTSUPP; + else if (streq(d->result, "once")) + return -ESTALE; + else if (STR_IN_SET(d->result, "done", "skipped")) + return 0; + + return log_debug_errno(SYNTHETIC_ERRNO(EIO), + "Unexpected job result, assuming server side newer than us: %s", d->result); +} + +int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) { + int r = 0; + + assert(d); + + while (!set_isempty(d->jobs)) { + int q; + + q = bus_process_wait(d->bus); + if (q < 0) + return log_error_errno(q, "Failed to wait for response: %m"); + + if (d->result) { + q = check_wait_response(d, quiet, extra_args); + /* Return the first error as it is most likely to be + * meaningful. */ + if (q < 0 && r == 0) + r = q; + + log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name)); + } + + d->name = mfree(d->name); + d->result = mfree(d->result); + } + + return r; +} + +int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) { + int r; + + assert(d); + + r = set_ensure_allocated(&d->jobs, &string_hash_ops); + if (r < 0) + return r; + + return set_put_strdup(d->jobs, path); +} + +int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) { + int r; + + r = bus_wait_for_jobs_add(d, path); + if (r < 0) + return log_oom(); + + return bus_wait_for_jobs(d, quiet, NULL); +} + +int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, size_t *n_changes) { + const char *type, *path, *source; + int r; + + /* changes is dereferenced when calling unit_file_dump_changes() later, + * so we have to make sure this is not NULL. */ + assert(changes); + assert(n_changes); + + r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) { + /* We expect only "success" changes to be sent over the bus. + Hence, reject anything negative. */ + UnitFileChangeType ch = unit_file_change_type_from_string(type); + + if (ch < 0) { + log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path); + continue; + } + + r = unit_file_changes_add(changes, n_changes, ch, path, source); + if (r < 0) + return r; + } + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_exit_container(m); + if (r < 0) + return bus_log_parse_error(r); + + unit_file_dump_changes(0, NULL, *changes, *n_changes, quiet); + return 0; +} + +struct CGroupInfo { + char *cgroup_path; + bool is_const; /* If false, cgroup_path should be free()'d */ + + Hashmap *pids; /* PID → process name */ + bool done; + + struct CGroupInfo *parent; + LIST_FIELDS(struct CGroupInfo, siblings); + LIST_HEAD(struct CGroupInfo, children); + size_t n_children; +}; + +static bool IS_ROOT(const char *p) { + return isempty(p) || streq(p, "/"); +} + +static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) { + struct CGroupInfo *parent = NULL, *cg; + int r; + + assert(cgroups); + assert(ret); + + if (IS_ROOT(path)) + path = "/"; + + cg = hashmap_get(cgroups, path); + if (cg) { + *ret = cg; + return 0; + } + + if (!IS_ROOT(path)) { + const char *e, *pp; + + e = strrchr(path, '/'); + if (!e) + return -EINVAL; + + pp = strndupa(path, e - path); + if (!pp) + return -ENOMEM; + + r = add_cgroup(cgroups, pp, false, &parent); + if (r < 0) + return r; + } + + cg = new0(struct CGroupInfo, 1); + if (!cg) + return -ENOMEM; + + if (is_const) + cg->cgroup_path = (char*) path; + else { + cg->cgroup_path = strdup(path); + if (!cg->cgroup_path) { + free(cg); + return -ENOMEM; + } + } + + cg->is_const = is_const; + cg->parent = parent; + + r = hashmap_put(cgroups, cg->cgroup_path, cg); + if (r < 0) { + if (!is_const) + free(cg->cgroup_path); + free(cg); + return r; + } + + if (parent) { + LIST_PREPEND(siblings, parent->children, cg); + parent->n_children++; + } + + *ret = cg; + return 1; +} + +static int add_process( + Hashmap *cgroups, + const char *path, + pid_t pid, + const char *name) { + + struct CGroupInfo *cg; + int r; + + assert(cgroups); + assert(name); + assert(pid > 0); + + r = add_cgroup(cgroups, path, true, &cg); + if (r < 0) + return r; + + r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops); + if (r < 0) + return r; + + return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name); +} + +static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) { + assert(cgroups); + assert(cg); + + while (cg->children) + remove_cgroup(cgroups, cg->children); + + hashmap_remove(cgroups, cg->cgroup_path); + + if (!cg->is_const) + free(cg->cgroup_path); + + hashmap_free(cg->pids); + + if (cg->parent) + LIST_REMOVE(siblings, cg->parent->children, cg); + + free(cg); +} + +static int cgroup_info_compare_func(struct CGroupInfo * const *a, struct CGroupInfo * const *b) { + return strcmp((*a)->cgroup_path, (*b)->cgroup_path); +} + +static int dump_processes( + Hashmap *cgroups, + const char *cgroup_path, + const char *prefix, + unsigned n_columns, + OutputFlags flags) { + + struct CGroupInfo *cg; + int r; + + assert(prefix); + + if (IS_ROOT(cgroup_path)) + cgroup_path = "/"; + + cg = hashmap_get(cgroups, cgroup_path); + if (!cg) + return 0; + + if (!hashmap_isempty(cg->pids)) { + const char *name; + size_t n = 0, i; + pid_t *pids; + void *pidp; + Iterator j; + int width; + + /* Order processes by their PID */ + pids = newa(pid_t, hashmap_size(cg->pids)); + + HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) + pids[n++] = PTR_TO_PID(pidp); + + assert(n == hashmap_size(cg->pids)); + typesafe_qsort(pids, n, pid_compare_func); + + width = DECIMAL_STR_WIDTH(pids[n-1]); + + for (i = 0; i < n; i++) { + _cleanup_free_ char *e = NULL; + const char *special; + bool more; + + name = hashmap_get(cg->pids, PID_TO_PTR(pids[i])); + assert(name); + + if (n_columns != 0) { + unsigned k; + + k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); + + e = ellipsize(name, k, 100); + if (e) + name = e; + } + + more = i+1 < n || cg->children; + special = special_glyph(more ? SPECIAL_GLYPH_TREE_BRANCH : SPECIAL_GLYPH_TREE_RIGHT); + + fprintf(stdout, "%s%s%*"PID_PRI" %s\n", + prefix, + special, + width, pids[i], + name); + } + } + + if (cg->children) { + struct CGroupInfo **children, *child; + size_t n = 0, i; + + /* Order subcgroups by their name */ + children = newa(struct CGroupInfo*, cg->n_children); + LIST_FOREACH(siblings, child, cg->children) + children[n++] = child; + assert(n == cg->n_children); + typesafe_qsort(children, n, cgroup_info_compare_func); + + if (n_columns != 0) + n_columns = MAX(LESS_BY(n_columns, 2U), 20U); + + for (i = 0; i < n; i++) { + _cleanup_free_ char *pp = NULL; + const char *name, *special; + bool more; + + child = children[i]; + + name = strrchr(child->cgroup_path, '/'); + if (!name) + return -EINVAL; + name++; + + more = i+1 < n; + special = special_glyph(more ? SPECIAL_GLYPH_TREE_BRANCH : SPECIAL_GLYPH_TREE_RIGHT); + + fputs(prefix, stdout); + fputs(special, stdout); + fputs(name, stdout); + fputc('\n', stdout); + + special = special_glyph(more ? SPECIAL_GLYPH_TREE_VERTICAL : SPECIAL_GLYPH_TREE_SPACE); + + pp = strappend(prefix, special); + if (!pp) + return -ENOMEM; + + r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags); + if (r < 0) + return r; + } + } + + cg->done = true; + return 0; +} + +static int dump_extra_processes( + Hashmap *cgroups, + const char *prefix, + unsigned n_columns, + OutputFlags flags) { + + _cleanup_free_ pid_t *pids = NULL; + _cleanup_hashmap_free_ Hashmap *names = NULL; + struct CGroupInfo *cg; + size_t n_allocated = 0, n = 0, k; + Iterator i; + int width, r; + + /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as + * combined, sorted, linear list. */ + + HASHMAP_FOREACH(cg, cgroups, i) { + const char *name; + void *pidp; + Iterator j; + + if (cg->done) + continue; + + if (hashmap_isempty(cg->pids)) + continue; + + r = hashmap_ensure_allocated(&names, &trivial_hash_ops); + if (r < 0) + return r; + + if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids))) + return -ENOMEM; + + HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) { + pids[n++] = PTR_TO_PID(pidp); + + r = hashmap_put(names, pidp, (void*) name); + if (r < 0) + return r; + } + } + + if (n == 0) + return 0; + + typesafe_qsort(pids, n, pid_compare_func); + width = DECIMAL_STR_WIDTH(pids[n-1]); + + for (k = 0; k < n; k++) { + _cleanup_free_ char *e = NULL; + const char *name; + + name = hashmap_get(names, PID_TO_PTR(pids[k])); + assert(name); + + if (n_columns != 0) { + unsigned z; + + z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U); + + e = ellipsize(name, z, 100); + if (e) + name = e; + } + + fprintf(stdout, "%s%s %*" PID_PRI " %s\n", + prefix, + special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), + width, pids[k], + name); + } + + return 0; +} + +int unit_show_processes( + sd_bus *bus, + const char *unit, + const char *cgroup_path, + const char *prefix, + unsigned n_columns, + OutputFlags flags, + sd_bus_error *error) { + + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + Hashmap *cgroups = NULL; + struct CGroupInfo *cg; + int r; + + assert(bus); + assert(unit); + + if (flags & OUTPUT_FULL_WIDTH) + n_columns = 0; + else if (n_columns <= 0) + n_columns = columns(); + + prefix = strempty(prefix); + + r = sd_bus_call_method( + bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetUnitProcesses", + error, + &reply, + "s", + unit); + if (r < 0) + return r; + + cgroups = hashmap_new(&path_hash_ops); + if (!cgroups) + return -ENOMEM; + + r = sd_bus_message_enter_container(reply, 'a', "(sus)"); + if (r < 0) + goto finish; + + for (;;) { + const char *path = NULL, *name = NULL; + uint32_t pid; + + r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name); + if (r < 0) + goto finish; + if (r == 0) + break; + + r = add_process(cgroups, path, pid, name); + if (r < 0) + goto finish; + } + + r = sd_bus_message_exit_container(reply); + if (r < 0) + goto finish; + + r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags); + if (r < 0) + goto finish; + + r = dump_extra_processes(cgroups, prefix, n_columns, flags); + +finish: + while ((cg = hashmap_first(cgroups))) + remove_cgroup(cgroups, cg); + + hashmap_free(cgroups); + + return r; +} + +int unit_load_state(sd_bus *bus, const char *name, char **load_state) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_free_ char *path = NULL; + int r; + + path = unit_dbus_path_from_name(name); + if (!path) + return log_oom(); + + /* This function warns on it's own, because otherwise it'd be awkward to pass + * the dbus error message around. */ + + r = sd_bus_get_property_string( + bus, + "org.freedesktop.systemd1", + path, + "org.freedesktop.systemd1.Unit", + "LoadState", + &error, + load_state); + if (r < 0) + return log_error_errno(r, "Failed to get load state of %s: %s", name, bus_error_message(&error, r)); + + return 0; +} -- cgit v1.2.3