diff options
Diffstat (limited to 'src/cgls')
| -rw-r--r-- | src/cgls/cgls.c | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c index b8e275d013..1840594ff6 100644 --- a/src/cgls/cgls.c +++ b/src/cgls/cgls.c @@ -35,6 +35,10 @@ #include "build.h" #include "output-mode.h" #include "fileio.h" +#include "sd-bus.h" +#include "bus-util.h" +#include "bus-error.h" +#include "unit-name.h" static bool arg_no_pager = false; static bool arg_kernel_threads = false; @@ -127,6 +131,7 @@ int main(int argc, char *argv[]) { int r = 0, retval = EXIT_FAILURE; int output_flags; char _cleanup_free_ *root = NULL; + _cleanup_bus_unref_ sd_bus *bus = NULL; log_parse_environment(); log_open(); @@ -151,6 +156,12 @@ int main(int argc, char *argv[]) { arg_all * OUTPUT_SHOW_ALL | (arg_full > 0) * OUTPUT_FULL_WIDTH; + r = bus_open_transport(BUS_TRANSPORT_LOCAL, NULL, false, &bus); + if (r < 0) { + log_error("Failed to create bus connection: %s", strerror(-r)); + goto finish; + } + if (optind < argc) { int i; @@ -189,8 +200,52 @@ int main(int argc, char *argv[]) { } else { if (arg_machine) { char *m; + const char *cgroup; + _cleanup_free_ char *scope = NULL; + _cleanup_free_ char *path = NULL; + _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + m = strappenda("/run/systemd/machines/", arg_machine); - r = parse_env_file(m, NEWLINE, "CGROUP", &root, NULL); + r = parse_env_file(m, NEWLINE, "SCOPE", &scope, NULL); + if (r < 0) { + log_error("Failed to get machine path: %s", strerror(-r)); + goto finish; + } + + path = unit_dbus_path_from_name(scope); + if (!path) { + r = log_oom(); + goto finish; + } + + r = sd_bus_get_property( + bus, + "org.freedesktop.systemd1", + path, + "org.freedesktop.systemd1.Scope", + "ControlGroup", + &error, + &reply, + "s"); + + if (r < 0) { + log_error("Failed to query ControlGroup: %s", bus_error_message(&error, -r)); + goto finish; + } + + r = sd_bus_message_read(reply, "s", &cgroup); + if (r < 0) { + bus_log_parse_error(r); + goto finish; + } + + root = strdup(cgroup); + if (!root) { + r = log_oom(); + goto finish; + } + } else r = cg_get_root_path(&root); if (r < 0) { |