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shared/install: provide a nicer error message for invalid WantedBy=/Required= values

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$ build/systemctl --user cat badinstall
 # /home/zbyszek/.config/systemd/user/badinstall.service
[Service]
ExecStart=true

[Install]
WantedBy=asdf

$ build/systemctl --user enable badinstall
Failed to enable unit: "asdf" is not a valid unit name.

Fixes #4209.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2019-12-13 18:36:29 +01:00
parent d9c1c43e67
commit d7ceaf7261
2 changed files with 14 additions and 1 deletions
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6
src/core/dbus-manager.c
View File

@ -1902,6 +1902,12 @@ static int install_error(
"Unit %s is transient or generated.", changes[i].path);
goto found;
case -EUCLEAN:
r = sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
"\"%s\" is not a valid unit name.",
changes[i].path);
goto found;
case -ELOOP:
r = sd_bus_error_setf(error, BUS_ERROR_UNIT_LINKED,
"Refusing to operate on alias name or linked unit file: %s",

9
src/shared/install.c
View File

@ -362,6 +362,12 @@ void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *chang
verb, changes[i].path);
logged = true;
break;
case -EUCLEAN:
log_error_errno(changes[i].type,
"Failed to %s unit, \"%s\" is not a valid unit name.",
verb, changes[i].path);
logged = true;
break;
case -ELOOP:
log_error_errno(changes[i].type, "Failed to %s unit, refusing to operate on linked unit file %s",
verb, changes[i].path);
@ -1794,7 +1800,8 @@ static int install_info_symlink_wants(
return q;
if (!unit_name_is_valid(dst, UNIT_NAME_ANY)) {
r = -EINVAL;
unit_file_changes_add(changes, n_changes, -EUCLEAN, dst, NULL);
r = -EUCLEAN;
continue;
}