X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fsystemctl%2Fsystemctl.c;h=d5d6b9f7d5990257cb65666f3e9be5a4d260ad87;hb=4fd944ec822414b743bc39de37a4751c729463d3;hp=737cd67d6814b12f1706e009bbe58c0f3536b9ae;hpb=6ce774fd8068d291e85b94bc630358ce86491b36;p=elogind.git diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c index 737cd67d6..d5d6b9f7d 100644 --- a/src/systemctl/systemctl.c +++ b/src/systemctl/systemctl.c @@ -65,12 +65,12 @@ #include "spawn-polkit-agent.h" #include "install.h" #include "logs-show.h" -#include "path-util.h" #include "socket-util.h" #include "fileio.h" #include "bus-util.h" #include "bus-message.h" #include "bus-error.h" +#include "bus-errors.h" static char **arg_types = NULL; static char **arg_states = NULL; @@ -137,6 +137,8 @@ static bool arg_plain = false; static int daemon_reload(sd_bus *bus, char **args); static int halt_now(enum action a); +static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet); + static void pager_open_if_enabled(void) { if (arg_no_pager) @@ -195,7 +197,7 @@ static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) return EXIT_NOTINSTALLED; if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) || - sd_bus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED)) + sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED)) return EXIT_NOTIMPLEMENTED; if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) @@ -750,7 +752,6 @@ static int get_next_elapse( dual_timestamp *next) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; dual_timestamp t; int r; @@ -1151,7 +1152,7 @@ static int list_dependencies_print(const char *name, int level, unsigned int bra for (i = level - 1; i >= 0; i--) { len += 2; - if(len > max_len - 3 && !arg_full) { + if (len > max_len - 3 && !arg_full) { printf("%s...\n",max_len % 2 ? "" : " "); return 0; } @@ -1159,7 +1160,7 @@ static int list_dependencies_print(const char *name, int level, unsigned int bra } len += 2; - if(len > max_len - 3 && !arg_full) { + if (len > max_len - 3 && !arg_full) { printf("%s...\n",max_len % 2 ? "" : " "); return 0; } @@ -1173,7 +1174,7 @@ static int list_dependencies_print(const char *name, int level, unsigned int bra } n = ellipsize(name, max_len-len, 100); - if(!n) + if (!n) return log_oom(); printf("%s\n", n); @@ -1310,6 +1311,8 @@ static int list_dependencies_one( qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare); STRV_FOREACH(c, deps) { + int state; + if (strv_contains(u, *c)) { if (!arg_plain) { r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1); @@ -1319,13 +1322,19 @@ static int list_dependencies_one( continue; } + state = check_one_unit(bus, *c, "activating\0active\0reloading\0", true); + if (state > 0) + printf("%s%s%s", ansi_highlight_green(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off()); + else + printf("%s%s%s", ansi_highlight_red(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off()); + r = list_dependencies_print(*c, level, branches, c[1] == NULL); if (r < 0) return r; if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) { r = list_dependencies_one(bus, *c, level + 1, &u, (branches << 1) | (c[1] == NULL ? 0 : 1)); - if(r < 0) + if (r < 0) return r; } } @@ -1402,6 +1411,100 @@ static int get_default(sd_bus *bus, char **args) { return 0; } +static void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_changes) { + unsigned i; + + assert(changes || n_changes == 0); + + for (i = 0; i < n_changes; i++) { + if (changes[i].type == UNIT_FILE_SYMLINK) + log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path); + else + log_info("rm '%s'", changes[i].path); + } +} + +static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) { + const char *type, *path, *source; + int r; + + 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) { + if (!arg_quiet) { + if (streq(type, "symlink")) + log_info("ln -s '%s' '%s'", source, path); + else + log_info("rm '%s'", path); + } + } + 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); + + return 0; +} + +static int set_default(sd_bus *bus, char **args) { + _cleanup_free_ char *unit = NULL; + UnitFileChange *changes = NULL; + unsigned n_changes = 0; + int r; + + unit = unit_name_mangle_with_suffix(args[1], ".target"); + if (!unit) + return log_oom(); + + if (!bus || avoid_bus()) { + r = unit_file_set_default(arg_scope, arg_root, unit, arg_force, &changes, &n_changes); + if (r < 0) { + log_error("Failed to set default target: %s", strerror(-r)); + return r; + } + + if (!arg_quiet) + dump_unit_file_changes(changes, n_changes); + + r = 0; + } else { + _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + + r = sd_bus_call_method( + bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "SetDefaultTarget", + &error, + &reply, + "sb", unit, arg_force); + if (r < 0) { + log_error("Failed to set default target: %s", bus_error_message(&error, -r)); + return r; + } + + r = deserialize_and_dump_unit_file_changes(reply); + if (r < 0) + return r; + + /* Try to reload if enabeld */ + if (!arg_no_reload) + r = daemon_reload(bus, args); + else + r = 0; + } + + unit_file_changes_free(changes, n_changes); + + return r; +} + struct job_info { uint32_t id; const char *name, *type, *state; @@ -1618,7 +1721,7 @@ typedef struct WaitData { char *result; } WaitData; -static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data) { +static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data, sd_bus_error *error) { WaitData *d = data; assert(bus); @@ -1671,7 +1774,7 @@ static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data) { } #endif - log_error("Failed to parse message."); + bus_log_parse_error(r); } return 0; @@ -1711,7 +1814,7 @@ static int wait_for_jobs(sd_bus *bus, Set *s) { return log_oom(); while (!set_isempty(s)) { - for(;;) { + for (;;) { r = sd_bus_process(bus, NULL); if (r < 0) return r; @@ -2127,7 +2230,6 @@ static int reboot_with_logind(sd_bus *bus, enum action a) { static int check_inhibitors(sd_bus *bus, enum action a) { #ifdef HAVE_LOGIND - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; _cleanup_strv_free_ char **sessions = NULL; const char *what, *who, *why, *mode; @@ -3502,16 +3604,13 @@ static int show_one( return r; } -static int show_one_by_pid( - const char *verb, +static int get_unit_dbus_path_by_pid( sd_bus *bus, uint32_t pid, - bool *new_line, - bool *ellipsized) { + char **unit) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; - const char *path = NULL; int r; r = sd_bus_call_method( @@ -3528,11 +3627,11 @@ static int show_one_by_pid( return r; } - r = sd_bus_message_read(reply, "o", &path); + r = sd_bus_message_read(reply, "o", unit); if (r < 0) return bus_log_parse_error(r); - return show_one(verb, bus, path, false, new_line, ellipsized); + return 0; } static int show_all( @@ -3542,7 +3641,6 @@ static int show_all( bool *new_line, bool *ellipsized) { - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; _cleanup_free_ UnitInfo *unit_infos = NULL; const UnitInfo *u; @@ -3553,6 +3651,8 @@ static int show_all( if (r < 0) return r; + pager_open_if_enabled(); + c = (unsigned) r; qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info); @@ -3567,8 +3667,6 @@ static int show_all( if (!p) return log_oom(); - printf("%s -> '%s'\n", u->id, p); - r = show_one(verb, bus, p, show_properties, new_line, ellipsized); if (r != 0) return r; @@ -3577,6 +3675,87 @@ static int show_all( return 0; } +static int cat(sd_bus *bus, char **args) { + int r = 0; + char **name; + + _cleanup_free_ char *unit = NULL, *n = NULL; + + assert(bus); + assert(args); + + pager_open_if_enabled(); + + STRV_FOREACH(name, args+1) { + _cleanup_free_ char *fragment_path = NULL; + _cleanup_strv_free_ char **dropin_paths = NULL; + sd_bus_error error; + char **path; + + n = unit_name_mangle(*name); + if (!n) + return log_oom(); + + unit = unit_dbus_path_from_name(n); + if (!unit) + return log_oom(); + + if (need_daemon_reload(bus, n) > 0) + log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.", + n, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user"); + + r = sd_bus_get_property_string( + bus, + "org.freedesktop.systemd1", + unit, + "org.freedesktop.systemd1.Unit", + "FragmentPath", + &error, + &fragment_path); + if (r < 0) { + log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r)); + continue; + } + + r = sd_bus_get_property_strv( + bus, + "org.freedesktop.systemd1", + unit, + "org.freedesktop.systemd1.Unit", + "DropInPaths", + &error, + &dropin_paths); + if (r < 0) { + log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r)); + continue; + } + + if (!isempty(fragment_path)) { + fprintf(stdout, "# %s\n", fragment_path); + fflush(stdout); + r = sendfile_full(STDOUT_FILENO, fragment_path); + if (r < 0) { + log_warning("Failed to cat %s: %s", fragment_path, strerror(-r)); + continue; + } + } + + STRV_FOREACH(path, dropin_paths) { + fprintf(stdout, "%s# %s\n", + isempty(fragment_path) && path == dropin_paths ? "" : "\n", + *path); + fflush(stdout); + r = sendfile_full(STDOUT_FILENO, *path); + if (r < 0) { + log_warning("Failed to cat %s: %s", *path, strerror(-r)); + continue; + } + } + } + + return r; +} + static int show(sd_bus *bus, char **args) { int r, ret = 0; bool show_properties, show_status, new_line = false; @@ -3601,41 +3780,34 @@ static int show(sd_bus *bus, char **args) { ret = show_all(args[0], bus, false, &new_line, &ellipsized); else STRV_FOREACH(name, args+1) { + _cleanup_free_ char *unit = NULL; uint32_t id; if (safe_atou32(*name, &id) < 0) { - _cleanup_free_ char *p = NULL, *n = NULL; + _cleanup_free_ char *n = NULL; /* Interpret as unit name */ n = unit_name_mangle(*name); if (!n) return log_oom(); - p = unit_dbus_path_from_name(n); - if (!p) + unit = unit_dbus_path_from_name(n); + if (!unit) return log_oom(); - r = show_one(args[0], bus, p, show_properties, &new_line, &ellipsized); - if (r != 0) - ret = r; - } else if (show_properties) { - _cleanup_free_ char *p = NULL; - /* Interpret as job id */ - if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0) + if (asprintf(&unit, "/org/freedesktop/systemd1/job/%u", id) < 0) return log_oom(); - r = show_one(args[0], bus, p, show_properties, &new_line, &ellipsized); - if (r != 0) - ret = r; - } else { /* Interpret as PID */ - r = show_one_by_pid(args[0], bus, id, &new_line, &ellipsized); - if (r != 0) + r = get_unit_dbus_path_by_pid(bus, id, &unit); + if (r < 0) ret = r; } + + show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized); } if (ellipsized && !arg_quiet) @@ -4335,12 +4507,10 @@ static int mangle_names(char **original_names, char ***mangled_names) { } static int enable_unit(sd_bus *bus, char **args) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL; - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_strv_free_ char **mangled_names = NULL; const char *verb = args[0]; UnitFileChange *changes = NULL; - unsigned n_changes = 0, i; + unsigned n_changes = 0; int carries_install_info = -1; int r; @@ -4373,8 +4543,6 @@ static int enable_unit(sd_bus *bus, char **args) { r = unit_file_mask(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes); else if (streq(verb, "unmask")) r = unit_file_unmask(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes); - else if (streq(verb, "set-default")) - r = unit_file_set_default(arg_scope, arg_root, args[1], &changes, &n_changes); else assert_not_reached("Unknown verb"); @@ -4383,20 +4551,16 @@ static int enable_unit(sd_bus *bus, char **args) { goto finish; } - if (!arg_quiet) { - for (i = 0; i < n_changes; i++) { - if (changes[i].type == UNIT_FILE_SYMLINK) - log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path); - else - log_info("rm '%s'", changes[i].path); - } - } + if (!arg_quiet) + dump_unit_file_changes(changes, n_changes); r = 0; } else { - const char *method, *type, *path, *source; + _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL; + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; int expect_carries_install_info = false; bool send_force = true; + const char *method; if (streq(verb, "enable")) { method = "EnableUnitFiles"; @@ -4417,8 +4581,6 @@ static int enable_unit(sd_bus *bus, char **args) { else if (streq(verb, "unmask")) { method = "UnmaskUnitFiles"; send_force = false; - } else if (streq(verb, "set-default")) { - method = "SetDefaultTarget"; } else assert_not_reached("Unknown verb"); @@ -4458,24 +4620,9 @@ static int enable_unit(sd_bus *bus, char **args) { return bus_log_parse_error(r); } - r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(sss)"); - if (r < 0) - return bus_log_parse_error(r); - - while ((r = sd_bus_message_read(reply, "(sss)", &type, &path, &source)) > 0) { - if (!arg_quiet) { - if (streq(type, "symlink")) - log_info("ln -s '%s' '%s'", source, path); - else - log_info("rm '%s'", path); - } - } - if (r < 0) - return bus_log_parse_error(r); - - r = sd_bus_message_exit_container(reply); + r = deserialize_and_dump_unit_file_changes(reply); if (r < 0) - return bus_log_parse_error(r); + return r; /* Try to reload if enabeld */ if (!arg_no_reload) @@ -4595,14 +4742,10 @@ static int systemctl_help(void) { " -a --all Show all loaded units/properties, including dead/empty\n" " ones. To list all units installed on the system, use\n" " the 'list-unit-files' command instead.\n" - " --reverse Show reverse dependencies with 'list-dependencies'\n" " -l --full Don't ellipsize unit names on output\n" - " --fail When queueing a new job, fail if conflicting jobs are\n" - " pending\n" - " --irreversible When queueing a new job, make sure it cannot be implicitly\n" - " cancelled\n" - " --ignore-dependencies\n" - " When queueing a new job, ignore all its dependencies\n" + " --reverse Show reverse dependencies with 'list-dependencies'\n" + " --job-mode=MODE Specify how to deal with already queued jobs, when\n" + " queueing a new job\n" " --show-types When showing sockets, explicitly show their type\n" " -i --ignore-inhibitors\n" " When shutting down or sleeping, ignore inhibitors\n" @@ -4645,6 +4788,7 @@ static int systemctl_help(void) { " status [NAME...|PID...] Show runtime status of one or more units\n" " show [NAME...|JOB...] Show properties of one or more\n" " units/jobs or the manager\n" + " cat [NAME...] Show files and drop-ins of one or more units\n" " set-property [NAME] [ASSIGNMENT...]\n" " Sets one or more properties of a unit\n" " help [NAME...|PID...] Show manual for one or more units\n" @@ -4769,7 +4913,7 @@ static int help_types(void) { const char *t; puts("Available unit types:"); - for(i = 0; i < _UNIT_TYPE_MAX; i++) { + for (i = 0; i < _UNIT_TYPE_MAX; i++) { t = unit_type_to_string(i); if (t) puts(t); @@ -4804,7 +4948,8 @@ static int systemctl_parse_argv(int argc, char *argv[]) { ARG_RUNTIME, ARG_FORCE, ARG_PLAIN, - ARG_STATE + ARG_STATE, + ARG_JOB_MODE }; static const struct option options[] = { @@ -4819,9 +4964,10 @@ static int systemctl_parse_argv(int argc, char *argv[]) { { "show-types", no_argument, NULL, ARG_SHOW_TYPES }, { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */ { "full", no_argument, NULL, 'l' }, - { "fail", no_argument, NULL, ARG_FAIL }, - { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, - { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, + { "job-mode", required_argument, NULL, ARG_JOB_MODE }, + { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */ + { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */ + { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */ { "ignore-inhibitors", no_argument, NULL, 'i' }, { "user", no_argument, NULL, ARG_USER }, { "system", no_argument, NULL, ARG_SYSTEM }, @@ -4959,6 +5105,10 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_show_types = true; break; + case ARG_JOB_MODE: + arg_job_mode = optarg; + break; + case ARG_FAIL: arg_job_mode = "fail"; break; @@ -5622,6 +5772,7 @@ static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) { { "check", MORE, 2, check_unit_active }, { "is-failed", MORE, 2, check_unit_failed }, { "show", MORE, 1, show }, + { "cat", MORE, 2, cat }, { "status", MORE, 1, show }, { "help", MORE, 2, show }, { "snapshot", LESS, 2, snapshot }, @@ -5653,8 +5804,8 @@ static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) { { "link", MORE, 2, enable_unit }, { "switch-root", MORE, 2, switch_root }, { "list-dependencies", LESS, 2, list_dependencies }, - { "set-default", EQUAL, 2, enable_unit }, - { "get-default", LESS, 1, get_default }, + { "set-default", EQUAL, 2, set_default }, + { "get-default", EQUAL, 1, get_default }, { "set-property", MORE, 3, set_property }, };