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8085a05f867ea394b57bbc2c4bf11248fb618321
systemd/src/sysupdate/sysupdate.c
T
Philip Withnall 8085a05f86 sysupdate: Factor out core of features verb 
This will be used in the following commit to add a varlink interface for
it.

This introduces no functional changes.
2026-07-14 14:57:00 +01:00

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131 KiB
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <unistd.h>
#include "sd-bus.h"
#include "sd-daemon.h"
#include "sd-json.h"
#include "sd-varlink.h"
#include "build.h"
#include "bus-polkit.h"
#include "condition.h"
#include "conf-files.h"
#include "conf-parser.h"
#include "constants.h"
#include "discover-image.h"
#include "dissect-image.h"
#include "dlopen-note.h"
#include "dropin.h"
#include "env-util.h"
#include "errno-util.h"
#include "fd-util.h"
#include "format-table.h"
#include "glyph-util.h"
#include "hashmap.h"
#include "help-util.h"
#include "hexdecoct.h"
#include "image-policy.h"
#include "json-util.h"
#include "loop-util.h"
#include "main-func.h"
#include "mount-util.h"
#include "options.h"
#include "os-util.h"
#include "pager.h"
#include "parse-argument.h"
#include "parse-util.h"
#include "path-util.h"
#include "pretty-print.h"
#include "runtime-scope.h"
#include "sort-util.h"
#include "stdio-util.h"
#include "string-util.h"
#include "strv.h"
#include "sysupdate.h"
#include "sysupdate-cleanup.h"
#include "sysupdate-config.h"
#include "sysupdate-feature.h"
#include "sysupdate-instance.h"
#include "sysupdate-target.h"
#include "sysupdate-transfer.h"
#include "sysupdate-update-set.h"
#include "sysupdate-util.h"
#include "varlink-io.systemd.SysUpdate.h"
#include "varlink-util.h"
#include "verbs.h"
static char *arg_definitions = NULL;
static bool arg_sync = true;
static uint64_t arg_instances_max = UINT64_MAX;
static sd_json_format_flags_t arg_json_format_flags = SD_JSON_FORMAT_OFF;
static PagerFlags arg_pager_flags = 0;
static bool arg_legend = true;
static char *arg_root = NULL;
static char *arg_image = NULL;
static bool arg_reboot = false;
static int arg_cleanup = -1;
static SelectMode arg_feature_select = SELECT_EXPLICIT;
static char *arg_component = NULL;
static SelectMode arg_component_select = SELECT_EXPLICIT;
static int arg_verify = -1;
static ImagePolicy *arg_image_policy = NULL;
static bool arg_offline = false;
static char *arg_transfer_source = NULL;
static bool arg_varlink = false;
STATIC_DESTRUCTOR_REGISTER(arg_definitions, freep);
STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
STATIC_DESTRUCTOR_REGISTER(arg_image, freep);
STATIC_DESTRUCTOR_REGISTER(arg_component, freep);
STATIC_DESTRUCTOR_REGISTER(arg_image_policy, image_policy_freep);
STATIC_DESTRUCTOR_REGISTER(arg_transfer_source, freep);
#define CONTEXT_NULL \
(Context) { \
.component_enabled = true, \
.sync = true, \
.instances_max = UINT64_MAX, \
.verify = -1, \
.cleanup = -1, \
.installdb_fd = -EBADF, \
.target_identifier.class = _TARGET_CLASS_INVALID, \
.component_suggest = -1, \
}
void context_done(Context *c) {
assert(c);
c->mounted_dir = umount_and_rmdir_and_free(c->mounted_dir);
c->loop_device = loop_device_unref(c->loop_device);
FOREACH_ARRAY(tr, c->transfers, c->n_transfers)
transfer_free(*tr);
c->transfers = mfree(c->transfers);
c->n_transfers = 0;
FOREACH_ARRAY(tr, c->disabled_transfers, c->n_disabled_transfers)
transfer_free(*tr);
c->disabled_transfers = mfree(c->disabled_transfers);
c->n_disabled_transfers = 0;
c->features = hashmap_free(c->features);
FOREACH_ARRAY(us, c->update_sets, c->n_update_sets)
update_set_free(*us);
c->update_sets = mfree(c->update_sets);
c->n_update_sets = 0;
c->web_cache = hashmap_free(c->web_cache);
c->installdb_fd = safe_close(c->installdb_fd);
c->definitions = mfree(c->definitions);
c->root = mfree(c->root);
c->image = mfree(c->image);
c->component = mfree(c->component);
c->component_description = mfree(c->component_description);
c->component_documentation = strv_free(c->component_documentation);
c->image_policy = image_policy_free(c->image_policy);
c->transfer_source = mfree(c->transfer_source);
target_identifier_done(&c->target_identifier);
condition_free_list(c->component_suggest_on);
}
static int context_from_cmdline(Context *ret) {
assert(ret);
_cleanup_(context_done) Context context = CONTEXT_NULL;
context.instances_max = arg_instances_max;
context.sync = arg_sync;
context.reboot = arg_reboot;
context.verify = arg_verify;
context.offline = arg_offline;
context.cleanup = arg_cleanup;
context.component_select = arg_component_select;
context.feature_select = arg_feature_select;
if (strdup_to(&context.definitions, arg_definitions) < 0)
return log_oom();
if (strdup_to(&context.root, arg_root) < 0)
return log_oom();
if (strdup_to(&context.image, arg_image) < 0)
return log_oom();
if (strdup_to(&context.component, arg_component) < 0)
return log_oom();
if (strdup_to(&context.transfer_source, arg_transfer_source) < 0)
return log_oom();
if (arg_image_policy) {
context.image_policy = image_policy_copy(arg_image_policy);
if (!context.image_policy)
return log_oom();
}
*ret = TAKE_GENERIC(context, Context, CONTEXT_NULL);
return 0;
}
static int context_from_base_with_component(const Context *base, const char *component, Context *ret) {
assert(base);
assert(component);
assert(ret);
/* Copies the specified context, but changes the component to the specified one */
_cleanup_(context_done) Context context = CONTEXT_NULL;
context.instances_max = base->instances_max;
context.sync = base->sync;
context.reboot = base->reboot;
context.verify = base->verify;
context.offline = base->offline;
context.cleanup = base->cleanup;
context.feature_select = base->feature_select;
if (strdup_to(&context.root, base->root) < 0)
return log_oom();
if (strdup_to(&context.image, base->image) < 0)
return log_oom();
if (strdup_to(&context.transfer_source, base->transfer_source) < 0)
return log_oom();
if (base->image_policy) {
context.image_policy = image_policy_copy(base->image_policy);
if (!context.image_policy)
return log_oom();
}
if (strdup_to(&context.component, component) < 0)
return log_oom();
/* NB: we do not copy .loop_device/.mounted_dir here, since that's for lifetime tracking only, and
* not needed for access (we only need to copy .root/.image) for that. Under the assumption that the
* contexts initialized via context_from_base_with_component() have a shorter lifetime than the
* contexts they are copied from we don't bother with lifetime tracking of the loopback device/mount
* point here. */
*ret = TAKE_GENERIC(context, Context, CONTEXT_NULL);
return 0;
}
/* Stores any long-running server state which needs to persist between varlink calls, such as state for
* pending polkit requests */
typedef struct Server {
sd_bus *system_bus;
Hashmap *polkit_registry;
} Server;
#define SERVER_NULL \
(Server) { \
/* all fields fine with being initialised to NULL */ \
}
static void server_done(Server *s) {
assert(s);
s->polkit_registry = hashmap_free(s->polkit_registry);
s->system_bus = sd_bus_flush_close_unref(s->system_bus);
}
static DEFINE_POINTER_ARRAY_FREE_FUNC(Transfer*, transfer_free);
static int read_features(
Context *c,
const char **dirs) {
int r;
assert(c);
ConfFile **files = NULL;
size_t n_files = 0;
CLEANUP_ARRAY(files, n_files, conf_file_free_array);
r = conf_files_list_strv_full(
".feature",
c->root,
CONF_FILES_REGULAR|CONF_FILES_FILTER_MASKED|CONF_FILES_WARN,
dirs,
&files,
&n_files);
if (r < 0)
return log_error_errno(r, "Failed to enumerate sysupdate.d/*.feature definitions: %m");
FOREACH_ARRAY(i, files, n_files) {
ConfFile *e = *i;
_cleanup_(feature_unrefp) Feature *f = feature_new();
if (!f)
return log_oom();
r = feature_read_definition(f, c->root, e->result, dirs);
if (r < 0)
return r;
r = hashmap_ensure_put(&c->features, &feature_hash_ops, f->id, f);
if (r < 0)
return log_error_errno(r, "Failed to insert feature '%s' into map: %m", f->id);
TAKE_PTR(f);
}
return 0;
}
static int read_transfers(
Context *c,
const char **dirs,
const char *suffix,
const char *node) {
ConfFile **files = NULL;
Transfer **transfers = NULL, **disabled = NULL;
size_t n_files = 0, n_transfers = 0, n_disabled = 0;
int r;
CLEANUP_ARRAY(files, n_files, conf_file_free_array);
CLEANUP_ARRAY(transfers, n_transfers, transfer_free_array);
CLEANUP_ARRAY(disabled, n_disabled, transfer_free_array);
assert(c);
assert(dirs);
assert(suffix);
r = conf_files_list_strv_full(suffix, c->root,
CONF_FILES_REGULAR|CONF_FILES_FILTER_MASKED|CONF_FILES_WARN,
dirs, &files, &n_files);
if (r < 0)
return log_error_errno(r, "Failed to enumerate sysupdate.d/*%s definitions: %m", suffix);
FOREACH_ARRAY(i, files, n_files) {
_cleanup_(transfer_freep) Transfer *t = NULL;
Transfer **appended;
ConfFile *e = *i;
t = transfer_new(c);
if (!t)
return log_oom();
r = transfer_read_definition(t, e->result, dirs, c->features);
if (r < 0)
return r;
r = transfer_resolve_paths(t, c->root, node);
if (r < 0)
return r;
if (t->enabled)
appended = GREEDY_REALLOC_APPEND(transfers, n_transfers, &t, 1);
else
appended = GREEDY_REALLOC_APPEND(disabled, n_disabled, &t, 1);
if (!appended)
return log_oom();
TAKE_PTR(t);
}
c->transfers = TAKE_PTR(transfers);
c->n_transfers = n_transfers;
c->disabled_transfers = TAKE_PTR(disabled);
c->n_disabled_transfers = n_disabled;
return 0;
}
static int read_component(Context *c) {
int r;
assert(c);
/* Read a component description file, but only if we actually operate on a component */
if (c->definitions || !c->component)
return 0;
_cleanup_free_ char *j = strjoin("sysupdate.", c->component, ".component");
if (!j)
return log_oom();
ConfigTableItem table[] = {
{ "Component", "Description", config_parse_string, 0, &c->component_description },
{ "Component", "Documentation", config_parse_url_specifiers_many, 0, &c->component_documentation },
{ "Component", "Enabled", config_parse_bool, 0, &c->component_enabled },
{ "Component", "Suggest", config_parse_tristate, 0, &c->component_suggest },
{ "Component", "SuggestOnArchitecture", config_parse_condition, CONDITION_ARCHITECTURE, &c->component_suggest_on },
{ "Component", "SuggestOnFirmware", config_parse_condition, CONDITION_FIRMWARE, &c->component_suggest_on },
{ "Component", "SuggestOnVirtualization", config_parse_condition, CONDITION_VIRTUALIZATION, &c->component_suggest_on },
{ "Component", "SuggestOnHost", config_parse_condition, CONDITION_HOST, &c->component_suggest_on },
{ "Component", "SuggestOnFraction", config_parse_condition, CONDITION_FRACTION, &c->component_suggest_on },
{ "Component", "SuggestOnKernelCommandLine", config_parse_condition, CONDITION_KERNEL_COMMAND_LINE, &c->component_suggest_on },
{ "Component", "SuggestOnVersion", config_parse_condition, CONDITION_VERSION, &c->component_suggest_on },
{ "Component", "SuggestOnCredential", config_parse_condition, CONDITION_CREDENTIAL, &c->component_suggest_on },
{ "Component", "SuggestOnSecurity", config_parse_condition, CONDITION_SECURITY, &c->component_suggest_on },
{ "Component", "SuggestOnOSRelease", config_parse_condition, CONDITION_OS_RELEASE, &c->component_suggest_on },
{ "Component", "SuggestOnMachineTag", config_parse_condition, CONDITION_MACHINE_TAG, &c->component_suggest_on },
{}
};
r = config_parse_standard_file_with_dropins_full(
c->root,
/* root_fd= */ -EBADF,
j,
"Component\0",
config_item_table_lookup, table,
CONFIG_PARSE_WARN,
/* userdata= */ (void *) c->root,
/* ret_stats_by_path= */ NULL,
/* ret_dropin_files= */ NULL);
if (r < 0)
return r;
return 0;
}
typedef enum ReadDefinitionsFlags {
READ_DEFINITIONS_REQUIRES_ENABLED_TRANSFERS = 1 << 0, /* fail unless there's at least one enabled transfer */
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS = 1 << 1, /* fail unless there's at least one transfer */
READ_DEFINITIONS_REQUIRES_ENABLED_COMPONENT = 1 << 2, /* fail if component is disabled */
} ReadDefinitionsFlags;
static int context_read_definitions(Context *c, const char* node, ReadDefinitionsFlags flags) {
_cleanup_strv_free_ char **dirs = NULL;
int r;
assert(c);
if (c->definitions)
dirs = strv_new(c->definitions);
else if (c->component) {
char **l = CONF_PATHS_STRV("");
size_t i = 0;
dirs = new0(char*, strv_length(l) + 1);
if (!dirs)
return log_oom();
STRV_FOREACH(dir, l) {
char *j;
j = strjoin(*dir, "sysupdate.", c->component, ".d");
if (!j)
return log_oom();
dirs[i++] = j;
}
} else
dirs = strv_new(CONF_PATHS("sysupdate.d"));
if (!dirs)
return log_oom();
r = read_component(c);
if (r < 0)
return r;
r = read_features(c, (const char**) dirs);
if (r < 0)
return r;
r = read_transfers(c, (const char**) dirs, ".transfer", node);
if (r < 0)
return r;
if (c->n_transfers + c->n_disabled_transfers == 0) {
/* Backwards-compat: If no .transfer defs are found, fall back to trying .conf! */
r = read_transfers(c, (const char**) dirs, ".conf", node);
if (r < 0)
return r;
if (c->n_transfers + c->n_disabled_transfers > 0)
log_warning("As of v257, transfer definitions should have the '.transfer' extension.");
}
if (FLAGS_SET(flags, READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS) &&
c->n_transfers + (FLAGS_SET(flags, READ_DEFINITIONS_REQUIRES_ENABLED_TRANSFERS) ? 0 : c->n_disabled_transfers) == 0) {
if (c->component)
return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
"No transfer definitions for component '%s' found.",
c->component);
return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
"No transfer definitions found.");
}
if (FLAGS_SET(flags, READ_DEFINITIONS_REQUIRES_ENABLED_COMPONENT) && !c->component_enabled)
return log_error_errno(SYNTHETIC_ERRNO(EHOSTDOWN), "Component is disabled.");
return 0;
}
static int context_load_installed_instances(Context *c) {
int r;
assert(c);
log_info("Discovering installed instances%s", glyph(GLYPH_ELLIPSIS));
FOREACH_ARRAY(tr, c->transfers, c->n_transfers) {
Transfer *t = *tr;
r = resource_load_instances(
&t->target,
c->verify >= 0 ? c->verify : t->verify,
&c->web_cache);
if (r < 0)
return r;
}
FOREACH_ARRAY(tr, c->disabled_transfers, c->n_disabled_transfers) {
Transfer *t = *tr;
r = resource_load_instances(
&t->target,
c->verify >= 0 ? c->verify : t->verify,
&c->web_cache);
if (r < 0)
return r;
}
return 0;
}
static int context_load_available_instances(Context *c) {
int r;
assert(c);
log_info("Discovering available instances%s", glyph(GLYPH_ELLIPSIS));
FOREACH_ARRAY(tr, c->transfers, c->n_transfers) {
Transfer *t = *tr;
r = resource_load_instances(
&t->source,
c->verify >= 0 ? c->verify : t->verify,
&c->web_cache);
if (r < 0)
return r;
}
return 0;
}
static int context_discover_update_sets_by_flag(Context *c, UpdateSetFlags flags) {
_cleanup_free_ char *boundary = NULL;
bool newest_found = false;
int r;
assert(c);
assert(IN_SET(flags, UPDATE_AVAILABLE, UPDATE_INSTALLED));
for (;;) {
_cleanup_free_ Instance **cursor_instances = NULL;
bool skip = false;
UpdateSetFlags extra_flags = 0;
_cleanup_free_ char *cursor = NULL;
UpdateSet *us = NULL;
/* First, let's find the newest version that's older than the boundary. */
FOREACH_ARRAY(tr, c->transfers, c->n_transfers) {
Resource *rr;
assert(*tr);
if (flags == UPDATE_AVAILABLE)
rr = &(*tr)->source;
else {
assert(flags == UPDATE_INSTALLED);
rr = &(*tr)->target;
}
FOREACH_ARRAY(inst, rr->instances, rr->n_instances) {
Instance *i = *inst; /* Sorted newest-to-oldest */
assert(i);
if (boundary && strverscmp_improved(i->metadata.version, boundary) >= 0)
continue; /* Not older than the boundary */
if (cursor && strverscmp(i->metadata.version, cursor) <= 0)
break; /* Not newer than the cursor. The same will be true for all
* subsequent instances (due to sorting) so let's skip to the
* next transfer. */
if (free_and_strdup(&cursor, i->metadata.version) < 0)
return log_oom();
break; /* All subsequent instances will be older than this one */
}
if (flags == UPDATE_AVAILABLE && !cursor)
break; /* This transfer didn't have a version older than the boundary,
* so any older-than-boundary version that might exist in a different
* transfer must always be incomplete. For reasons described below,
* we don't include incomplete versions for AVAILABLE updates. So we
* are completely done looking. */
}
if (!cursor) /* We didn't find anything older than the boundary, so we're done. */
break;
cursor_instances = new0(Instance*, c->n_transfers);
if (!cursor_instances)
return log_oom();
/* Now let's find all the instances that match the version of the cursor, if we have them */
for (size_t k = 0; k < c->n_transfers; k++) {
Transfer *t = c->transfers[k];
Instance *match = NULL;
assert(t);
if (flags == UPDATE_AVAILABLE) {
match = resource_find_instance(&t->source, cursor);
if (!match) {
/* When we're looking for updates to download, we don't offer
* incomplete versions at all. The server wants to send us an update
* with parts of the OS missing. For robustness sake, let's not do
* that. */
skip = true;
break;
}
} else {
assert(flags == UPDATE_INSTALLED);
match = resource_find_instance(&t->target, cursor);
if (!match && !(extra_flags & (UPDATE_PARTIAL|UPDATE_PENDING)))
/* When we're looking for installed versions, let's be robust and treat
* an incomplete installation as an installation. Otherwise, there are
* situations that can lead to sysupdate wiping the currently booted OS.
* See https://github.com/systemd/systemd/issues/33339 */
extra_flags |= UPDATE_INCOMPLETE;
}
cursor_instances[k] = match;
if (t->min_version && strverscmp_improved(t->min_version, cursor) > 0)
extra_flags |= UPDATE_OBSOLETE;
if (strv_contains(t->protected_versions, cursor))
extra_flags |= UPDATE_PROTECTED;
/* Partial or pending updates by definition are not incomplete, they’re
* partial/pending instead. While an individual Instance cannot be both partial and
* pending, an UpdateSet as a whole can contain both partial and pending instances. */
assert(!match || !(match->is_partial && match->is_pending));
if (match && match->is_partial)
extra_flags = (extra_flags | UPDATE_PARTIAL) & ~UPDATE_INCOMPLETE;
if (match && match->is_pending)
extra_flags = (extra_flags | UPDATE_PENDING) & ~UPDATE_INCOMPLETE;
}
r = free_and_strdup_warn(&boundary, cursor);
if (r < 0)
return r;
if (skip)
continue;
/* See if we already have this update set in our table */
FOREACH_ARRAY(update_set, c->update_sets, c->n_update_sets) {
UpdateSet *u = *update_set;
if (strverscmp_improved(u->version, cursor) != 0)
continue;
/* Merge in what we've learned and continue onto the next version */
if (FLAGS_SET(u->flags, UPDATE_INCOMPLETE) ||
FLAGS_SET(u->flags, UPDATE_PARTIAL) ||
FLAGS_SET(u->flags, UPDATE_PENDING)) {
assert(u->n_instances == c->n_transfers);
/* Incomplete updates will have picked NULL instances for the transfers that
* are missing. Now we have more information, so let's try to fill them in. */
for (size_t j = 0; j < u->n_instances; j++) {
if (!u->instances[j])
u->instances[j] = cursor_instances[j];
/* Make sure that the list is full if the update is AVAILABLE */
assert(flags != UPDATE_AVAILABLE || u->instances[j]);
}
}
u->flags |= flags | extra_flags;
/* If this is the newest installed version, that is incomplete and just became marked
* as available, and if there is no other candidate available, we promote this to be
* the candidate. Ignore partial or pending status on the update set. */
if (FLAGS_SET(u->flags, UPDATE_NEWEST|UPDATE_INSTALLED|UPDATE_INCOMPLETE|UPDATE_AVAILABLE) &&
!c->candidate && !FLAGS_SET(u->flags, UPDATE_OBSOLETE))
c->candidate = u;
skip = true;
newest_found = true;
break;
}
if (skip)
continue;
/* Doesn't exist yet, let's add it */
if (!GREEDY_REALLOC(c->update_sets, c->n_update_sets + 1))
return log_oom();
us = new(UpdateSet, 1);
if (!us)
return log_oom();
*us = (UpdateSet) {
.flags = flags | (newest_found ? 0 : UPDATE_NEWEST) | extra_flags,
.version = TAKE_PTR(cursor),
.instances = TAKE_PTR(cursor_instances),
.n_instances = c->n_transfers,
};
c->update_sets[c->n_update_sets++] = us;
newest_found = true;
/* Remember which one is the newest installed */
if ((us->flags & (UPDATE_NEWEST|UPDATE_INSTALLED)) == (UPDATE_NEWEST|UPDATE_INSTALLED))
c->newest_installed = us;
/* Remember which is the newest non-obsolete, available (and not installed) version, which we declare the "candidate".
* It may be partial or pending. */
if ((us->flags & (UPDATE_NEWEST|UPDATE_INSTALLED|UPDATE_AVAILABLE|UPDATE_OBSOLETE)) == (UPDATE_NEWEST|UPDATE_AVAILABLE))
c->candidate = us;
}
/* Newest installed is newer than or equal to candidate? Then suppress the candidate */
if (c->newest_installed && !FLAGS_SET(c->newest_installed->flags, UPDATE_INCOMPLETE) &&
c->candidate && strverscmp_improved(c->newest_installed->version, c->candidate->version) >= 0)
c->candidate = NULL;
/* Newest installed is still pending or partial and no candidate is set? Then it becomes the candidate. */
if (c->newest_installed &&
(c->newest_installed->flags & (UPDATE_PENDING|UPDATE_PARTIAL)) &&
!c->candidate)
c->candidate = c->newest_installed;
return 0;
}
static int context_discover_update_sets(Context *c) {
int r;
assert(c);
log_info("Determining installed update sets%s", glyph(GLYPH_ELLIPSIS));
r = context_discover_update_sets_by_flag(c, UPDATE_INSTALLED);
if (r < 0)
return r;
if (!c->offline) {
log_info("Determining available update sets%s", glyph(GLYPH_ELLIPSIS));
r = context_discover_update_sets_by_flag(c, UPDATE_AVAILABLE);
if (r < 0)
return r;
}
typesafe_qsort(c->update_sets, c->n_update_sets, update_set_cmp);
return 0;
}
static int context_show_table(Context *c) {
_cleanup_(table_unrefp) Table *t = NULL;
int r;
assert(c);
t = table_new("", "version", "installed", "available", "assessment");
if (!t)
return log_oom();
(void) table_set_align_percent(t, table_get_cell(t, 0, 0), 100);
(void) table_set_align_percent(t, table_get_cell(t, 0, 2), 50);
(void) table_set_align_percent(t, table_get_cell(t, 0, 3), 50);
FOREACH_ARRAY(update_set, c->update_sets, c->n_update_sets) {
UpdateSet *us = *update_set;
const char *color;
color = update_set_flags_to_color(us->flags);
r = table_add_many(t,
TABLE_STRING, update_set_flags_to_glyph(us->flags),
TABLE_SET_COLOR, color,
TABLE_STRING, us->version,
TABLE_SET_COLOR, color,
TABLE_STRING, glyph_check_mark_space(FLAGS_SET(us->flags, UPDATE_INSTALLED)),
TABLE_SET_COLOR, color,
TABLE_STRING, glyph_check_mark_space(FLAGS_SET(us->flags, UPDATE_AVAILABLE)),
TABLE_SET_COLOR, color,
TABLE_STRING, update_set_flags_to_string(us->flags),
TABLE_SET_COLOR, color);
if (r < 0)
return table_log_add_error(r);
}
return table_print_with_pager(t, arg_json_format_flags, arg_pager_flags, arg_legend);
}
static UpdateSet* context_update_set_by_version(Context *c, const char *version) {
assert(c);
assert(version);
FOREACH_ARRAY(update_set, c->update_sets, c->n_update_sets)
if (streq((*update_set)->version, version))
return *update_set;
return NULL;
}
static int context_show_version(Context *c, const char *version) {
bool show_fs_columns = false, show_partition_columns = false,
have_fs_attributes = false, have_partition_attributes = false,
have_size = false, have_tries = false, have_no_auto = false,
have_read_only = false, have_growfs = false, have_sha256 = false;
_cleanup_(sd_json_variant_unrefp) sd_json_variant *json = NULL;
_cleanup_(table_unrefp) Table *t = NULL;
_cleanup_strv_free_ char **changelog_urls = NULL;
UpdateSet *us;
int r;
assert(c);
assert(version);
us = context_update_set_by_version(c, version);
if (!us)
return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Update '%s' not found.", version);
if (arg_json_format_flags & (SD_JSON_FORMAT_OFF|SD_JSON_FORMAT_PRETTY|SD_JSON_FORMAT_PRETTY_AUTO))
pager_open(arg_pager_flags);
if (!sd_json_format_enabled(arg_json_format_flags))
printf("%s%s%s Version: %s\n"
" State: %s%s%s\n"
"Installed: %s%s%s%s\n"
"Available: %s%s\n"
"Protected: %s%s%s\n"
" Obsolete: %s%s%s\n\n",
strempty(update_set_flags_to_color(us->flags)), update_set_flags_to_glyph(us->flags), ansi_normal(), us->version,
strempty(update_set_flags_to_color(us->flags)), update_set_flags_to_string(us->flags), ansi_normal(),
yes_no(us->flags & UPDATE_INSTALLED), FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_NEWEST) ? " (newest)" : "",
FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PENDING) ? " (pending)" : "", FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PARTIAL) ? " (partial)" : "",
yes_no(us->flags & UPDATE_AVAILABLE), (us->flags & (UPDATE_INSTALLED|UPDATE_AVAILABLE|UPDATE_NEWEST)) == (UPDATE_AVAILABLE|UPDATE_NEWEST) ? " (newest)" : "",
FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PROTECTED) ? ansi_highlight() : "", yes_no(FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PROTECTED)), ansi_normal(),
us->flags & UPDATE_OBSOLETE ? ansi_highlight_red() : "", yes_no(us->flags & UPDATE_OBSOLETE), ansi_normal());
t = table_new("type", "path", "ptuuid", "ptflags", "mtime", "mode", "size", "tries-done", "tries-left", "noauto", "ro", "growfs", "sha256");
if (!t)
return log_oom();
(void) table_set_align_percent(t, table_get_cell(t, 0, 3), 100);
(void) table_set_align_percent(t, table_get_cell(t, 0, 4), 100);
(void) table_set_align_percent(t, table_get_cell(t, 0, 5), 100);
(void) table_set_align_percent(t, table_get_cell(t, 0, 6), 100);
(void) table_set_align_percent(t, table_get_cell(t, 0, 7), 100);
(void) table_set_align_percent(t, table_get_cell(t, 0, 8), 100);
table_set_ersatz_string(t, TABLE_ERSATZ_DASH);
/* Starting in v257, these fields would be automatically formatted with underscores. This would have
* been a breaking change, so to avoid that let's hard-code their original names. */
(void) table_set_json_field_name(t, 7, "tries-done");
(void) table_set_json_field_name(t, 8, "tries-left");
/* Determine if the target will make use of partition/fs attributes for any of the transfers */
FOREACH_ARRAY(transfer, c->transfers, c->n_transfers) {
Transfer *tr = *transfer;
if (tr->target.type == RESOURCE_PARTITION)
show_partition_columns = true;
if (RESOURCE_IS_FILESYSTEM(tr->target.type))
show_fs_columns = true;
STRV_FOREACH(changelog, tr->changelog) {
assert(*changelog);
_cleanup_free_ char *changelog_url = strreplace(*changelog, "@v", version);
if (!changelog_url)
return log_oom();
/* Avoid duplicates */
if (strv_contains(changelog_urls, changelog_url))
continue;
/* changelog_urls takes ownership of expanded changelog_url */
r = strv_consume(&changelog_urls, TAKE_PTR(changelog_url));
if (r < 0)
return log_oom();
}
}
FOREACH_ARRAY(inst, us->instances, us->n_instances) {
Instance *i = *inst;
if (!i) {
assert(us->flags & (UPDATE_INCOMPLETE|UPDATE_PARTIAL|UPDATE_PENDING));
continue;
}
r = table_add_many(t,
TABLE_STRING, resource_type_to_string(i->resource->type),
TABLE_PATH, i->path);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.partition_uuid_set) {
have_partition_attributes = true;
r = table_add_cell(t, NULL, TABLE_UUID, &i->metadata.partition_uuid);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.partition_flags_set) {
have_partition_attributes = true;
r = table_add_cell(t, NULL, TABLE_UINT64_HEX, &i->metadata.partition_flags);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.mtime != USEC_INFINITY) {
have_fs_attributes = true;
r = table_add_cell(t, NULL, TABLE_TIMESTAMP, &i->metadata.mtime);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.mode != MODE_INVALID) {
have_fs_attributes = true;
r = table_add_cell(t, NULL, TABLE_MODE, &i->metadata.mode);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.size != UINT64_MAX) {
have_size = true;
r = table_add_cell(t, NULL, TABLE_SIZE, &i->metadata.size);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.tries_done != UINT64_MAX) {
have_tries = true;
r = table_add_cell(t, NULL, TABLE_UINT64, &i->metadata.tries_done);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.tries_left != UINT64_MAX) {
have_tries = true;
r = table_add_cell(t, NULL, TABLE_UINT64, &i->metadata.tries_left);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.no_auto >= 0) {
bool b;
have_no_auto = true;
b = i->metadata.no_auto;
r = table_add_cell(t, NULL, TABLE_BOOLEAN, &b);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.read_only >= 0) {
bool b;
have_read_only = true;
b = i->metadata.read_only;
r = table_add_cell(t, NULL, TABLE_BOOLEAN, &b);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.growfs >= 0) {
bool b;
have_growfs = true;
b = i->metadata.growfs;
r = table_add_cell(t, NULL, TABLE_BOOLEAN, &b);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
if (i->metadata.sha256sum_set) {
_cleanup_free_ char *formatted = NULL;
have_sha256 = true;
formatted = hexmem(i->metadata.sha256sum, sizeof(i->metadata.sha256sum));
if (!formatted)
return log_oom();
r = table_add_cell(t, NULL, TABLE_STRING, formatted);
} else
r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return table_log_add_error(r);
}
/* Hide the fs/partition columns if we don't have any data to show there */
if (!have_fs_attributes)
show_fs_columns = false;
if (!have_partition_attributes)
show_partition_columns = false;
if (!show_partition_columns)
(void) table_hide_column_from_display(t, 2, 3);
if (!show_fs_columns)
(void) table_hide_column_from_display(t, 4, 5);
if (!have_size)
(void) table_hide_column_from_display(t, 6);
if (!have_tries)
(void) table_hide_column_from_display(t, 7, 8);
if (!have_no_auto)
(void) table_hide_column_from_display(t, 9);
if (!have_read_only)
(void) table_hide_column_from_display(t, 10);
if (!have_growfs)
(void) table_hide_column_from_display(t, 11);
if (!have_sha256)
(void) table_hide_column_from_display(t, 12);
if (!sd_json_format_enabled(arg_json_format_flags)) {
printf("%s%s%s Version: %s\n"
" State: %s%s%s\n"
"Installed: %s%s%s%s%s%s%s\n"
"Available: %s%s\n"
"Protected: %s%s%s\n"
" Obsolete: %s%s%s\n",
strempty(update_set_flags_to_color(us->flags)), update_set_flags_to_glyph(us->flags), ansi_normal(), us->version,
strempty(update_set_flags_to_color(us->flags)), update_set_flags_to_string(us->flags), ansi_normal(),
yes_no(us->flags & UPDATE_INSTALLED), FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_NEWEST) ? " (newest)" : "",
FLAGS_SET(us->flags, UPDATE_INCOMPLETE) ? ansi_highlight_yellow() : "", FLAGS_SET(us->flags, UPDATE_INCOMPLETE) ? " (incomplete)" : "", ansi_normal(),
FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PENDING) ? " (pending)" : "", FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PARTIAL) ? " (partial)" : "",
yes_no(us->flags & UPDATE_AVAILABLE), (us->flags & (UPDATE_INSTALLED|UPDATE_AVAILABLE|UPDATE_NEWEST)) == (UPDATE_AVAILABLE|UPDATE_NEWEST) ? " (newest)" : "",
FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PROTECTED) ? ansi_highlight() : "", yes_no(FLAGS_SET(us->flags, UPDATE_INSTALLED|UPDATE_PROTECTED)), ansi_normal(),
us->flags & UPDATE_OBSOLETE ? ansi_highlight_red() : "", yes_no(us->flags & UPDATE_OBSOLETE), ansi_normal());
STRV_FOREACH(url, changelog_urls) {
_cleanup_free_ char *changelog_link = NULL;
r = terminal_urlify(*url, NULL, &changelog_link);
if (r < 0)
return log_oom();
printf("ChangeLog: %s\n", changelog_link);
}
printf("\n");
return table_print_with_pager(t, arg_json_format_flags, arg_pager_flags, arg_legend);
} else {
_cleanup_(sd_json_variant_unrefp) sd_json_variant *t_json = NULL;
r = table_to_json(t, &t_json);
if (r < 0)
return log_error_errno(r, "failed to convert table to JSON: %m");
r = sd_json_buildo(&json, SD_JSON_BUILD_PAIR_STRING("version", us->version),
SD_JSON_BUILD_PAIR_BOOLEAN("newest", FLAGS_SET(us->flags, UPDATE_NEWEST)),
SD_JSON_BUILD_PAIR_BOOLEAN("available", FLAGS_SET(us->flags, UPDATE_AVAILABLE)),
SD_JSON_BUILD_PAIR_BOOLEAN("installed", FLAGS_SET(us->flags, UPDATE_INSTALLED)),
SD_JSON_BUILD_PAIR_BOOLEAN("partial", FLAGS_SET(us->flags, UPDATE_PARTIAL)),
SD_JSON_BUILD_PAIR_BOOLEAN("pending", FLAGS_SET(us->flags, UPDATE_PENDING)),
SD_JSON_BUILD_PAIR_BOOLEAN("obsolete", FLAGS_SET(us->flags, UPDATE_OBSOLETE)),
SD_JSON_BUILD_PAIR_BOOLEAN("protected", FLAGS_SET(us->flags, UPDATE_PROTECTED)),
SD_JSON_BUILD_PAIR_BOOLEAN("incomplete", FLAGS_SET(us->flags, UPDATE_INCOMPLETE)),
SD_JSON_BUILD_PAIR_STRV("changelogUrls", changelog_urls),
SD_JSON_BUILD_PAIR_VARIANT("contents", t_json));
if (r < 0)
return log_error_errno(r, "Failed to create JSON: %m");
r = sd_json_variant_dump(json, arg_json_format_flags, stdout, NULL);
if (r < 0)
return log_error_errno(r, "Failed to print JSON: %m");
return 0;
}
}
static int context_vacuum(
Context *c,
uint64_t space,
const char *extra_protected_version) {
size_t disabled_count = 0;
int r, count = 0;
assert(c);
if (space == 0)
log_info("Making room%s", glyph(GLYPH_ELLIPSIS));
else
log_info("Making room for %" PRIu64 " updates%s", space, glyph(GLYPH_ELLIPSIS));
FOREACH_ARRAY(tr, c->transfers, c->n_transfers) {
Transfer *t = *tr;
/* Don't bother clearing out space if we're not going to be downloading anything */
if (extra_protected_version && resource_find_instance(&t->target, extra_protected_version))
continue;
r = transfer_vacuum(t, space, extra_protected_version);
if (r < 0)
return r;
count = MAX(count, r);
}
FOREACH_ARRAY(tr, c->disabled_transfers, c->n_disabled_transfers) {
r = transfer_vacuum(*tr, UINT64_MAX /* wipe all instances */, NULL);
if (r < 0)
return r;
if (r > 0)
disabled_count++;
}
if (!sd_json_format_enabled(arg_json_format_flags)) {
if (count > 0 && disabled_count > 0)
log_info("Removed %i instances, and %zu disabled transfers.", count, disabled_count);
else if (count > 0)
log_info("Removed %i instances.", count);
else if (disabled_count > 0)
log_info("Removed %zu disabled transfers.", disabled_count);
else
log_info("Found nothing to remove.");
} else {
_cleanup_(sd_json_variant_unrefp) sd_json_variant *json = NULL;
r = sd_json_buildo(&json,
SD_JSON_BUILD_PAIR_INTEGER("removed", count),
SD_JSON_BUILD_PAIR_UNSIGNED("disabledTransfers", disabled_count));
if (r < 0)
return log_error_errno(r, "Failed to create JSON: %m");
r = sd_json_variant_dump(json, arg_json_format_flags, stdout, NULL);
if (r < 0)
return log_error_errno(r, "Failed to print JSON: %m");
}
return 0;
}
typedef enum ProcessImageFlags {
PROCESS_IMAGE_READ_ONLY = 1 << 0,
} ProcessImageFlags;
static int context_process_image(
Context *c,
ProcessImageFlags flags) {
_cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL;
_cleanup_(umount_and_rmdir_and_freep) char *mounted_dir = NULL;
int r;
assert(c);
if (c->root || !c->image) /* Idempotent or nothing to do */
return 0;
assert(!c->mounted_dir);
assert(!c->loop_device);
r = mount_image_privately_interactively(
c->image,
c->image_policy,
(FLAGS_SET(flags, PROCESS_IMAGE_READ_ONLY) ? DISSECT_IMAGE_READ_ONLY : 0) |
DISSECT_IMAGE_FSCK |
DISSECT_IMAGE_MKDIR |
DISSECT_IMAGE_GROWFS |
DISSECT_IMAGE_RELAX_VAR_CHECK |
DISSECT_IMAGE_USR_NO_ROOT |
DISSECT_IMAGE_GENERIC_ROOT |
DISSECT_IMAGE_REQUIRE_ROOT |
DISSECT_IMAGE_ALLOW_USERSPACE_VERITY,
&mounted_dir,
/* ret_dir_fd= */ NULL,
&loop_device);
if (r < 0)
return r;
c->root = strdup(mounted_dir);
if (!c->root)
return log_oom();
c->mounted_dir = TAKE_PTR(mounted_dir);
c->loop_device = TAKE_PTR(loop_device);
return 0;
}
static int context_list_components(Context *context, char ***ret_component_names, bool *ret_has_default_component);
static int context_load_offline(
Context *context,
ProcessImageFlags process_image_flags,
ReadDefinitionsFlags read_definitions_flags) {
int r;
assert(context);
/* Sets up a context object and initializes everything we can initialize offline, i.e. without
* checking on the update source (i.e. the Internet) what versions are available */
r = context_process_image(context, process_image_flags);
if (r < 0)
return r;
r = context_read_definitions(context, context->loop_device ? context->loop_device->node : NULL, read_definitions_flags);
if (r < 0)
return r;
r = context_load_installed_instances(context);
if (r < 0)
return r;
return 0;
}
static int context_load_online(
Context *context,
ProcessImageFlags process_image_flags,
ReadDefinitionsFlags read_definitions_flags) {
int r;
assert(context);
/* Like context_load_offline(), but also communicates with the update source looking for new
* versions (as long as --offline is not specified on the command line). */
r = context_load_offline(
context,
process_image_flags,
read_definitions_flags);
if (r < 0)
return r;
if (!context->offline) {
r = context_load_available_instances(context);
if (r < 0)
return r;
}
r = context_discover_update_sets(context);
if (r < 0)
return r;
return 0;
}
static bool image_type_can_sysupdate(ImageType image_type) {
/* systemd-sysupdate doesn't support mstack images yet */
return IN_SET(image_type, IMAGE_DIRECTORY, IMAGE_SUBVOLUME, IMAGE_RAW, IMAGE_BLOCK);
}
static int context_load_paths_from_image(Context *context, Image *image) {
assert(context);
assert(image);
assert(!context->root);
assert(!context->image);
switch (image->type) {
case IMAGE_DIRECTORY:
case IMAGE_SUBVOLUME:
context->root = strdup(image->path);
if (!context->root)
return log_oom();
return 0;
case IMAGE_RAW:
case IMAGE_BLOCK:
context->image = strdup(image->path);
if (!context->image)
return log_oom();
return 0;
default:
assert_not_reached();
}
}
/* Load a Context to point to the target given by the TargetIdentifier. The TargetIdentifier will have been
* syntactically validated by dispatch_target_identifier(), but might still point to components which don’t
* exist, images which the user isn’t privileged to access, etc. This function validates the TargetIdentifier
* against an enumerated list of known targets, which are safe to update without additional permissions. */
static int context_load_online_from_target(
Context *context,
ProcessImageFlags process_image_flags,
ReadDefinitionsFlags read_definitions_flags) {
int r;
assert(context);
assert(context->target_identifier.class != _TARGET_CLASS_INVALID);
/* These shouldn’t have been set up some other way first */
assert(!context->component);
assert(!context->root);
assert(!context->image);
switch (context->target_identifier.class) {
case TARGET_MACHINE:
case TARGET_PORTABLE:
case TARGET_SYSEXT:
case TARGET_CONFEXT: {
_cleanup_hashmap_free_ Hashmap *images = NULL;
Image *image, *selected_image = NULL;
/* These are all image-based target classes, so first find the corresponding image. */
r = image_discover(RUNTIME_SCOPE_SYSTEM, (ImageClass) context->target_identifier.class, NULL, &images);
if (r < 0)
return r;
HASHMAP_FOREACH(image, images) {
bool have = false;
_cleanup_(context_done) Context image_context = CONTEXT_NULL;
if (image_is_host(image))
continue; /* We already enroll the host ourselves */
if (!image_type_can_sysupdate(image->type))
continue;
if (!streq(image->name, context->target_identifier.name))
continue;
r = context_load_paths_from_image(&image_context, image);
if (r < 0)
return r;
/* Load the components in a separate Context specific to the given Image before
* committing to loading that state to the main Context. */
r = context_load_offline(&image_context, 0, 0);
if (r < 0)
return r;
r = context_list_components(&image_context, /* ret_component_names= */ NULL, &have);
if (r < 0)
return r;
if (!have) {
log_debug("Skipping %s because it has no default component", image->path);
continue;
}
/* This is the match we were looking for */
selected_image = image;
break;
}
if (!selected_image)
return -ENOENT;
r = context_load_paths_from_image(context, selected_image);
if (r < 0)
return r;
break;
}
case TARGET_HOST:
/* No additional setup needed */
break;
case TARGET_COMPONENT: {
_cleanup_strv_free_ char **component_names = NULL;
r = context_list_components(context, &component_names, /* ret_has_default_component= */ NULL);
if (r < 0)
return r;
if (!strv_contains(component_names, context->target_identifier.name))
return -ENOENT;
context->component = strdup(context->target_identifier.name);
if (!context->component)
return log_oom();
break;
}
default:
assert_not_reached();
}
return context_load_online(context, process_image_flags, read_definitions_flags);
}
static int context_on_acquire_progress(const Transfer *t, const Instance *inst, unsigned percentage) {
const Context *c = ASSERT_PTR(t->context);
size_t i, n = c->n_transfers;
uint64_t base, scaled;
unsigned overall;
for (i = 0; i < n; i++)
if (c->transfers[i] == t)
break;
assert(i < n); /* We should have found the index */
base = (100 * 100 * i) / n;
scaled = (100 * percentage) / n;
overall = (unsigned) ((base + scaled) / 100);
assert(overall <= 100);
log_debug("Transfer %zu/%zu is %u%% complete (%u%% overall).", i+1, n, percentage, overall);
return sd_notifyf(/* unset_environment= */ false, "X_SYSUPDATE_PROGRESS=%u\n"
"X_SYSUPDATE_TRANSFERS_LEFT=%zu\n"
"X_SYSUPDATE_TRANSFERS_DONE=%zu\n"
"STATUS=Updating to '%s' (%u%% complete).",
overall, n - i, i, inst->metadata.version, overall);
}
static int context_process_partial_and_pending(Context *c, const char *version);
static int context_acquire(
Context *c,
const char *version) {
UpdateSet *us = NULL;
int r;
assert(c);
if (version) {
us = context_update_set_by_version(c, version);
if (!us)
return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Update '%s' not found.", version);
} else {
if (!c->candidate) {
log_info("No update needed.");
return 0;
}
us = c->candidate;
}
if (FLAGS_SET(us->flags, UPDATE_INCOMPLETE))
log_info("Selected update '%s' is already installed, but incomplete. Repairing.", us->version);
else if (FLAGS_SET(us->flags, UPDATE_PARTIAL)) {
return log_error_errno(SYNTHETIC_ERRNO(EUCLEAN), "Selected update '%s' is already acquired and partially installed. Vacuum it to try installing again.", us->version);
} else if (FLAGS_SET(us->flags, UPDATE_PENDING)) {
log_info("Selected update '%s' is already acquired and pending installation.", us->version);
return context_process_partial_and_pending(c, version);
} else if (FLAGS_SET(us->flags, UPDATE_INSTALLED)) {
log_info("Selected update '%s' is already installed. Skipping update.", us->version);
return 0;
}
if (!FLAGS_SET(us->flags, UPDATE_AVAILABLE))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected update '%s' is not available, refusing.", us->version);
if (FLAGS_SET(us->flags, UPDATE_OBSOLETE))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected update '%s' is obsolete, refusing.", us->version);
if (!FLAGS_SET(us->flags, UPDATE_NEWEST))
log_notice("Selected update '%s' is not the newest, proceeding anyway.", us->version);
if (c->newest_installed && strverscmp_improved(c->newest_installed->version, us->version) > 0)
log_notice("Selected update '%s' is older than newest installed version, proceeding anyway.", us->version);
log_info("Selected update '%s' for install.", us->version);
_cleanup_free_ InstanceMetadata *metadata = new0(InstanceMetadata, c->n_transfers);
if (!metadata)
return log_oom();
/* Compute up the temporary paths before vacuuming so we don't vacuum anything if we fail to compute
* any paths because of failed validations (e.g. exceeding the gpt partition label size). */
for (size_t i = 0; i < c->n_transfers; i++) {
Instance *inst = us->instances[i];
Transfer *t = c->transfers[i];
assert(inst);
r = transfer_compute_temporary_paths(t, inst, metadata + i);
if (r < 0)
return r;
}
(void) sd_notifyf(/* unset_environment= */ false,
"READY=1\n"
"X_SYSUPDATE_VERSION=%s\n"
"STATUS=Making room for '%s'.", us->version, us->version);
/* Let's make some room. We make sure for each transfer we have one free space to fill. While
* removing stuff we'll protect the version we are trying to acquire. Why that? Maybe an earlier
* download succeeded already, in which case we shouldn't remove it just to acquire it again */
r = context_vacuum(
c,
/* space= */ 1,
/* extra_protected_version= */ us->version);
if (r < 0)
return r;
if (c->sync)
sync();
(void) sd_notifyf(/* unset_environment= */ false,
"STATUS=Updating to '%s'.", us->version);
/* There should now be one instance picked for each transfer, and the order is the same */
assert(us->n_instances == c->n_transfers);
for (size_t i = 0; i < c->n_transfers; i++) {
Instance *inst = us->instances[i];
Transfer *t = c->transfers[i];
assert(inst); /* ditto */
if (inst->resource == &t->target) { /* a present transfer in an incomplete installation */
assert(FLAGS_SET(us->flags, UPDATE_INCOMPLETE));
continue;
}
r = transfer_acquire_instance(t, inst, metadata + i, context_on_acquire_progress, c);
if (r < 0)
return r;
}
if (c->sync)
sync();
return 1;
}
/* Check to see if we have an update set acquired and pending installation. */
static int context_process_partial_and_pending(
Context *c,
const char *version) {
UpdateSet *us = NULL;
int r;
assert(c);
if (version) {
us = context_update_set_by_version(c, version);
if (!us)
return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Update '%s' not found.", version);
} else {
if (!c->candidate) {
log_info("No update needed.");
return 0;
}
us = c->candidate;
}
if (FLAGS_SET(us->flags, UPDATE_INCOMPLETE))
log_info("Selected update '%s' is already installed, but incomplete. Repairing.", us->version);
else if ((us->flags & (UPDATE_PARTIAL|UPDATE_PENDING|UPDATE_INSTALLED)) == UPDATE_INSTALLED) {
log_info("Selected update '%s' is already installed. Skipping update.", us->version);
return 0;
}
if (FLAGS_SET(us->flags, UPDATE_PARTIAL))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected update '%s' is only partially downloaded, refusing.", us->version);
if (!FLAGS_SET(us->flags, UPDATE_PENDING))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected update '%s' is not pending installation, refusing.", us->version);
if (FLAGS_SET(us->flags, UPDATE_OBSOLETE))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Selected update '%s' is obsolete, refusing.", us->version);
if (!FLAGS_SET(us->flags, UPDATE_NEWEST))
log_notice("Selected update '%s' is not the newest, proceeding anyway.", us->version);
if (c->newest_installed && strverscmp_improved(c->newest_installed->version, us->version) > 0)
log_notice("Selected update '%s' is older than newest installed version, proceeding anyway.", us->version);
log_info("Selected update '%s' for install.", us->version);
/* There should now be one instance picked for each transfer, and the order is the same */
assert(us->n_instances == c->n_transfers);
for (size_t i = 0; i < c->n_transfers; i++) {
Instance *inst = us->instances[i];
Transfer *t = c->transfers[i];
assert(inst);
r = transfer_process_partial_and_pending_instance(t, inst);
if (r < 0)
return r;
}
return 1;
}
static int notify_subscribers_reply(
sd_varlink *link,
sd_json_variant *reply,
const char *error_id,
sd_varlink_reply_flags_t flags,
void *userdata) {
assert(link);
if (error_id)
log_warning("Notification subscriber '%s' returned error, ignoring: %s",
strna(sd_varlink_get_description(link)), error_id);
return 0;
}
static int context_notify_subscribers(Context *c, UpdateSet *us) {
int r;
assert(c);
/* 'us' is NULL when we are forced to notify even though no update was applied (via
* SYSTEMD_SYSUPDATE_FORCE_NOTIFY=1). In that case we send neither a version nor a resource list. */
_cleanup_(sd_json_variant_unrefp) sd_json_variant *resources = NULL;
if (us)
for (size_t i = 0; i < c->n_transfers; i++) {
Instance *inst = us->instances[i];
Transfer *t = c->transfers[i];
if (inst->resource == &t->target &&
!inst->is_pending)
continue;
/* Report where the resource was installed *to* (not the source it came from): the
* final on-disk path for filesystem targets, the partition device node for partition
* targets. */
const char *target_path =
RESOURCE_IS_FILESYSTEM(t->target.type) ? t->final_path :
t->target.type == RESOURCE_PARTITION ? t->partition_info.device :
NULL;
r = sd_json_variant_append_arraybo(
&resources,
SD_JSON_BUILD_PAIR_STRING("transfer", t->id),
SD_JSON_BUILD_PAIR_CONDITION(!!target_path, "path", SD_JSON_BUILD_STRING(target_path)));
if (r < 0)
return log_warning_errno(r, "Failed to build sysupdate notify resources list, skipping notification: %m");
}
_cleanup_(sd_json_variant_unrefp) sd_json_variant *params = NULL;
r = sd_json_buildo(
&params,
SD_JSON_BUILD_PAIR_CONDITION(!!c->component, "component", SD_JSON_BUILD_STRING(c->component)),
SD_JSON_BUILD_PAIR_CONDITION(!!us, "version", SD_JSON_BUILD_STRING(us ? us->version : NULL)),
SD_JSON_BUILD_PAIR_CONDITION(!!resources, "resources", SD_JSON_BUILD_VARIANT(resources)));
if (r < 0)
return log_warning_errno(r, "Failed to build sysupdate notify parameters, skipping notification: %m");
ssize_t n = varlink_execute_directory(
VARLINK_DIR_SYSUPDATE_NOTIFY_HOOK,
"io.systemd.SysUpdate.Notify.OnCompletedUpdate",
params,
/* more= */ false,
/* timeout_usec= */ 5 * USEC_PER_MINUTE,
notify_subscribers_reply,
/* userdata= */ NULL);
if (n < 0)
log_debug_errno(n, "Failed to dispatch sysupdate notification to %s, ignoring: %m",
VARLINK_DIR_SYSUPDATE_NOTIFY_HOOK);
else if (n > 0)
log_debug("Dispatched sysupdate notification to %zi subscribers in %s.", n, VARLINK_DIR_SYSUPDATE_NOTIFY_HOOK);
return 0;
}
static int context_install(
Context *c,
const char *version,
UpdateSet **ret_applied) {
UpdateSet *us = NULL;
int r;
assert(c);
if (version) {
us = context_update_set_by_version(c, version);
if (!us)
return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Update '%s' not found.", version);
} else {
if (!c->candidate) {
log_info("No update needed.");
return 0;
}
us = c->candidate;
}
(void) sd_notifyf(/* unset_environment=*/ false,
"READY=1\n"
"X_SYSUPDATE_VERSION=%s\n"
"STATUS=Installing '%s'.", us->version, us->version);
for (size_t i = 0; i < c->n_transfers; i++) {
Instance *inst = us->instances[i];
Transfer *t = c->transfers[i];
if (inst->resource == &t->target &&
!inst->is_pending)
continue;
r = transfer_install_instance(t, inst, c->root);
if (r < 0)
return r;
}
log_info("%s Successfully installed update '%s'.", glyph(GLYPH_SPARKLES), us->version);
if (!c->root)
(void) context_notify_subscribers(c, us);
(void) sd_notifyf(/* unset_environment= */ false,
"STATUS=Installed '%s'.", us->version);
if (ret_applied)
*ret_applied = us;
return 1;
}
static int context_get_transfers_for_feature(Context *context, const char *feature_id, char ***ret_transfers) {
int r;
assert(context);
assert(feature_id);
FOREACH_ARRAY(tr, context->transfers, context->n_transfers) {
Transfer *t = *tr;
if (!strv_contains(t->features, feature_id) && !strv_contains(t->requisite_features, feature_id))
continue;
r = strv_extend(ret_transfers, t->id);
if (r < 0)
return log_oom();
}
FOREACH_ARRAY(tr, context->disabled_transfers, context->n_disabled_transfers) {
Transfer *t = *tr;
if (!strv_contains(t->features, feature_id) && !strv_contains(t->requisite_features, feature_id))
continue;
r = strv_extend(ret_transfers, t->id);
if (r < 0)
return log_oom();
}
return 0;
}
static JSON_DISPATCH_ENUM_DEFINE(dispatch_target_class, TargetClass, target_class_from_string);
static int dispatch_target_identifier(const char *name, sd_json_variant *variant, sd_json_dispatch_flags_t flags, void *userdata) {
TargetIdentifier *t = ASSERT_PTR(userdata);
static const sd_json_dispatch_field dispatch[] = {
{ "class", SD_JSON_VARIANT_STRING, dispatch_target_class, voffsetof(*t, class), SD_JSON_MANDATORY },
{ "name", SD_JSON_VARIANT_STRING, sd_json_dispatch_string, voffsetof(*t, name), SD_JSON_NULLABLE },
{}
};
int r;
r = sd_json_dispatch(variant, dispatch, flags, t);
if (r < 0)
return r;
/* Name is mandatory unless class is `host` */
if ((t->class == TARGET_HOST) != (!t->name))
return json_log(variant, flags, SYNTHETIC_ERRNO(ENXIO), "Target name does not match class.");
if (t->class == TARGET_COMPONENT && !component_name_valid(t->name))
return json_log(variant, flags, SYNTHETIC_ERRNO(EINVAL), "Component name invalid: %s", t->name);
return 0;
}
static int verify_polkit(Context *context, sd_varlink *link, const char *action, const char **details) {
int r;
Server *s = ASSERT_PTR(sd_varlink_get_userdata(ASSERT_PTR(link)));
assert(context);
if (!s->system_bus) {
r = sd_bus_open_system_with_description(&s->system_bus, "sysupdate-system");
if (r < 0)
return log_error_errno(r, "Failed to get system bus connection: %m");
r = sd_bus_attach_event(s->system_bus, sd_varlink_get_event(link), SD_EVENT_PRIORITY_NORMAL);
if (r < 0)
return log_error_errno(r, "Failed to attach system bus to event loop: %m");
}
return varlink_verify_polkit_async(link,
s->system_bus,
action,
details,
&s->polkit_registry);
}
VERB(verb_list, "list", "[VERSION]", VERB_ANY, 2, VERB_DEFAULT,
"Show installed and available versions");
static int verb_list(int argc, char *argv[], uintptr_t _data, void *userdata) {
_cleanup_(context_done) Context context = CONTEXT_NULL;
_cleanup_strv_free_ char **appstream_urls = NULL;
const char *version;
int r;
assert(argc <= 2);
version = argc >= 2 ? argv[1] : NULL;
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "--component-all/--component-suggested currently not supported for '%s'.", argv[0]);
r = context_load_online(
&context,
PROCESS_IMAGE_READ_ONLY,
READ_DEFINITIONS_REQUIRES_ENABLED_TRANSFERS|
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS);
if (r < 0)
return r;
if (version)
return context_show_version(&context, version);
else if (!sd_json_format_enabled(arg_json_format_flags))
return context_show_table(&context);
else {
_cleanup_(sd_json_variant_unrefp) sd_json_variant *json = NULL;
_cleanup_strv_free_ char **versions = NULL;
const char *current = NULL;
bool current_is_pending = false;
FOREACH_ARRAY(update_set, context.update_sets, context.n_update_sets) {
UpdateSet *us = *update_set;
if (FLAGS_SET(us->flags, UPDATE_INSTALLED) &&
FLAGS_SET(us->flags, UPDATE_NEWEST)) {
current = us->version;
current_is_pending = FLAGS_SET(us->flags, UPDATE_PENDING);
}
r = strv_extend(&versions, us->version);
if (r < 0)
return log_oom();
}
FOREACH_ARRAY(tr, context.transfers, context.n_transfers)
STRV_FOREACH(appstream_url, (*tr)->appstream) {
/* Avoid duplicates */
if (strv_contains(appstream_urls, *appstream_url))
continue;
r = strv_extend(&appstream_urls, *appstream_url);
if (r < 0)
return log_oom();
}
r = sd_json_buildo(&json, SD_JSON_BUILD_PAIR_STRING(current_is_pending ? "current+pending" : "current", current),
SD_JSON_BUILD_PAIR_STRV("all", versions),
SD_JSON_BUILD_PAIR_STRV("appstreamUrls", appstream_urls));
if (r < 0)
return log_error_errno(r, "Failed to create JSON: %m");
r = sd_json_variant_dump(json, arg_json_format_flags, stdout, NULL);
if (r < 0)
return log_error_errno(r, "Failed to print JSON: %m");
return 0;
}
}
VERB(verb_features, "features", "[FEATURE]", VERB_ANY, 2, 0,
"Show optional features");
static int verb_features(int argc, char *argv[], uintptr_t _data, void *userdata) {
_cleanup_(context_done) Context context = CONTEXT_NULL;
_cleanup_(table_unrefp) Table *table = NULL;
const char *feature_id;
Feature *f;
int r;
assert(argc <= 2);
feature_id = argc >= 2 ? argv[1] : NULL;
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "--component-all/--component-suggested currently not supported for '%s'.", argv[0]);
r = context_load_offline(
&context,
PROCESS_IMAGE_READ_ONLY,
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS);
if (r < 0)
return r;
if (feature_id) {
_cleanup_strv_free_ char **transfers = NULL;
f = hashmap_get(context.features, feature_id);
if (!f)
return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
"Optional feature not found: %s",
feature_id);
table = table_new_vertical();
if (!table)
return log_oom();
r = context_get_transfers_for_feature(&context, f->id, &transfers);
if (r < 0)
return r;
r = table_add_many(table,
TABLE_FIELD, "Name",
TABLE_STRING, f->id,
TABLE_FIELD, "Enabled",
TABLE_BOOLEAN, f->enabled);
if (r < 0)
return table_log_add_error(r);
r = feature_is_suggested(f);
if (r < 0) {
errno = -r; /* Let's make %m below show this error */
_cleanup_free_ char *k = asprintf_safe("error (%m)");
r = table_add_many(table,
TABLE_FIELD, "Suggested",
TABLE_STRING, k);
} else
r = table_add_many(table,
TABLE_FIELD, "Suggested",
TABLE_BOOLEAN, r);
if (r < 0)
return table_log_add_error(r);
if (f->description) {
r = table_add_many(table, TABLE_FIELD, "Description", TABLE_STRING, f->description);
if (r < 0)
return table_log_add_error(r);
}
if (f->documentation) {
r = table_add_many(table,
TABLE_FIELD, "Documentation",
TABLE_STRING, f->documentation,
TABLE_SET_URL, f->documentation);
if (r < 0)
return table_log_add_error(r);
}
if (f->appstream) {
r = table_add_many(table,
TABLE_FIELD, "AppStream",
TABLE_STRING, f->appstream,
TABLE_SET_URL, f->appstream);
if (r < 0)
return table_log_add_error(r);
}
if (!strv_isempty(transfers)) {
r = table_add_many(table, TABLE_FIELD, "Transfers", TABLE_STRV_WRAPPED, transfers);
if (r < 0)
return table_log_add_error(r);
}
return table_print_with_pager(table, arg_json_format_flags, arg_pager_flags, arg_legend);
} else if (FLAGS_SET(arg_json_format_flags, SD_JSON_FORMAT_OFF)) {
table = table_new("enabled", "suggested", "feature", "description", "documentation");
if (!table)
return log_oom();
table_set_ersatz_string(table, TABLE_ERSATZ_DASH);
HASHMAP_FOREACH(f, context.features) {
r = table_add_many(table,
TABLE_BOOLEAN_CHECKMARK, f->enabled,
TABLE_SET_COLOR, ansi_highlight_green_red(f->enabled));
if (r < 0)
return table_log_add_error(r);
r = feature_is_suggested(f);
if (r < 0)
r = table_add_many(table, TABLE_EMPTY);
else
r = table_add_many(table, TABLE_BOOLEAN_CHECKMARK, r);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_STRING, f->id,
TABLE_STRING, f->description,
TABLE_STRING, f->documentation,
TABLE_SET_URL, f->documentation);
if (r < 0)
return table_log_add_error(r);
}
r = table_print_with_pager(table, arg_json_format_flags, arg_pager_flags, arg_legend);
if (r < 0)
return r;
if (arg_legend) {
if (table_isempty(table))
log_info("No features.");
else
printf("\n%zu features listed.\n", table_get_rows(table) - 1);
}
} else {
_cleanup_(sd_json_variant_unrefp) sd_json_variant *json = NULL;
_cleanup_strv_free_ char **features = NULL;
HASHMAP_FOREACH(f, context.features) {
r = strv_extend(&features, f->id);
if (r < 0)
return log_oom();
}
r = sd_json_buildo(&json, SD_JSON_BUILD_PAIR_STRV("features", features));
if (r < 0)
return log_error_errno(r, "Failed to create JSON: %m");
r = sd_json_variant_dump(json, arg_json_format_flags, stdout, NULL);
if (r < 0)
return log_error_errno(r, "Failed to print JSON: %m");
}
return 0;
}
static int make_dropin_dir(Context *c, char **ret) {
_cleanup_free_ char *dir = NULL;
assert(c);
assert(ret);
/* Returns the (writable) directory where feature definitions live, so that we can drop our
* 'Enabled=' override right next to them. This mirrors the directory logic in
* context_read_definitions(), but settles on a single writable location below /etc. */
if (c->definitions)
dir = strdup(c->definitions); /* --root= is not supported for this for now */
else if (c->component) {
_cleanup_free_ char *n = strjoin("sysupdate.", c->component, ".d");
if (!n)
return log_oom();
dir = path_join(c->root, SYSCONF_DIR, n);
} else
dir = path_join(c->root, SYSCONF_DIR "/sysupdate.d");
if (!dir)
return log_oom();
*ret = TAKE_PTR(dir);
return 0;
}
static const char *context_component_display(const Context *c) {
assert(c);
return c->component ?: "<default>";
}
static int context_enable_feature(
Context *c,
const char *argv0,
bool enable,
char **features) {
int r;
assert(c);
assert(argv0);
_cleanup_free_ char **l = NULL;
switch (c->feature_select) {
case SELECT_EXPLICIT:
break;
case SELECT_ALL: {
assert(!features);
Feature *f;
HASHMAP_FOREACH(f, c->features)
if (strv_push(&l, f->id) < 0)
return log_oom();
features = l;
break;
}
case SELECT_SUGGESTED: {
assert(!features);
Feature *f;
HASHMAP_FOREACH(f, c->features) {
r = feature_is_suggested(f);
if (r < 0)
return log_error_errno(r, "Failed to determine if feature '%s' of component '%s' shall be enabled: %m", f->id, context_component_display(c));
if (!!r != !!enable) {
log_debug("Skipping feature '%s' of component '%s'.", f->id, context_component_display(c));
continue;
}
log_info("%s feature '%s' of component '%s'.", enable ? "Enabling" : "Disabling", f->id, context_component_display(c));
if (strv_push(&l, f->id) < 0)
return log_oom();
}
features = l;
break;
}
default:
assert_not_reached();
}
if (strv_isempty(features)) {
log_debug("No features selected.");
return 0;
}
_cleanup_free_ char *dropin_dir = NULL;
r = make_dropin_dir(c, &dropin_dir);
if (r < 0)
return r;
int ret = 0;
STRV_FOREACH(name, features) {
if (!hashmap_contains(c->features, *name)) {
RET_GATHER(ret, log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Optional feature not found in component '%s': %s", context_component_display(c), *name));
continue;
}
_cleanup_free_ char *fname = strjoin(*name, ".feature");
if (!fname)
return log_oom();
/* We assume that no sysadmin will name their config 50-systemd-sysupdate-enabled.conf */
r = write_drop_in_format(
dropin_dir,
fname,
50,
"systemd-sysupdate-enabled",
"# Generated via 'systemd-sysupdate %s'\n\n"
"[Feature]\n"
"Enabled=%s\n",
argv0,
yes_no(enable));
if (r < 0) {
RET_GATHER(ret, log_error_errno(r, "Failed to write drop-in for feature '%s': %m", *name));
continue;
}
log_info("Feature '%s' %s.", *name, enabled_disabled(enable));
}
return ret;
}
VERB(verb_enable_feature, "enable-feature", "FEATURE…", 1, VERB_ANY, 0,
"Enable optional feature");
VERB(verb_enable_feature, "disable-feature", "FEATURE…", 1, VERB_ANY, 0,
"Disable optional feature");
static int verb_enable_feature(int argc, char *argv[], uintptr_t _data, void *userdata) {
bool enable = streq(argv[0], "enable-feature");
int r;
_cleanup_(context_done) Context context = CONTEXT_NULL;
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (!IN_SET(context.component_select, SELECT_EXPLICIT, SELECT_ALL))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--component-suggested is not supported for '%s'.", argv[0]);
if (context.definitions)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"The --definitions= switch may not be combined with '%s'.", argv[0]);
char **features;
if (argc > 1 && context.feature_select == SELECT_EXPLICIT) {
features = strv_skip(argv, 1);
STRV_FOREACH(name, features)
if (!feature_name_valid(*name))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Feature name invalid: %s", *name);
} else if (argc <= 1 && context.feature_select != SELECT_EXPLICIT)
features = NULL;
else
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Either specify features as positional parameter or via --feature-all/--feature-suggested, not both.");
r = context_load_offline(
&context,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r < 0)
return r;
switch (context.component_select) {
case SELECT_EXPLICIT:
return context_enable_feature(&context, argv[0], enable, features);
case SELECT_ALL: {
_cleanup_strv_free_ char **component_names = NULL;
bool has_default_component;
r = context_list_components(&context, &component_names, &has_default_component);
if (r < 0)
return r;
if (strv_isempty(component_names) && !has_default_component) {
log_debug("No components selected.");
return 0;
}
int ret = 0;
if (has_default_component)
RET_GATHER(ret, context_enable_feature(&context, argv[0], enable, features));
STRV_FOREACH(name, component_names) {
_cleanup_(context_done) Context cc = CONTEXT_NULL;
r = context_from_base_with_component(&context, *name, &cc);
if (r < 0) {
RET_GATHER(ret, r);
continue;
}
r = context_load_offline(
&cc,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r < 0) {
RET_GATHER(ret, r);
continue;
}
RET_GATHER(ret, context_enable_feature(&cc, argv[0], enable, features));
}
return ret;
}
default:
assert_not_reached();
}
}
VERB_NOARG(verb_check_new, "check-new",
"Check if there's a new version available");
static int verb_check_new(int argc, char *argv[], uintptr_t _data, void *userdata) {
int r;
assert(argc <= 1);
_cleanup_(context_done) Context context = CONTEXT_NULL;
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "--component-all/--component-suggested currently not supported for '%s'.", argv[0]);
r = context_load_online(
&context,
PROCESS_IMAGE_READ_ONLY,
READ_DEFINITIONS_REQUIRES_ENABLED_TRANSFERS|
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS);
if (r < 0)
return r;
if (!sd_json_format_enabled(arg_json_format_flags)) {
if (!context.candidate) {
log_debug("No candidate found.");
return EXIT_FAILURE;
}
puts(context.candidate->version);
} else {
_cleanup_(sd_json_variant_unrefp) sd_json_variant *json = NULL;
if (context.candidate)
r = sd_json_buildo(&json, SD_JSON_BUILD_PAIR_STRING("available", context.candidate->version));
else
r = sd_json_buildo(&json, SD_JSON_BUILD_PAIR_NULL("available"));
if (r < 0)
return log_error_errno(r, "Failed to create JSON: %m");
r = sd_json_variant_dump(json, arg_json_format_flags, stdout, NULL);
if (r < 0)
return log_error_errno(r, "Failed to print JSON: %m");
}
return EXIT_SUCCESS;
}
static int vl_method_check_new(sd_varlink *link, sd_json_variant *parameters, sd_varlink_method_flags_t flags, void *userdata) {
_cleanup_(context_done) Context context = CONTEXT_NULL;
int r;
assert(link);
static const sd_json_dispatch_field dispatch_table[] = {
{ "target", SD_JSON_VARIANT_OBJECT, dispatch_target_identifier, voffsetof(context, target_identifier), SD_JSON_MANDATORY },
VARLINK_DISPATCH_POLKIT_FIELD,
{},
};
r = sd_varlink_dispatch(link, parameters, dispatch_table, &context);
if (r != 0)
return r;
r = verify_polkit(&context, link, "org.freedesktop.sysupdate1.check",
(const char**) STRV_MAKE(
"class", target_class_to_string(context.target_identifier.class),
"offline", "0",
context.target_identifier.name ? "name" : NULL, context.target_identifier.name));
if (r <= 0)
return r;
if (getenv_bool("SYSTEMD_SYSUPDATE_NO_VERIFY") > 0)
context.verify = 0;
/* CheckNew is always online */
context.offline = false;
r = context_load_online_from_target(
&context,
PROCESS_IMAGE_READ_ONLY,
READ_DEFINITIONS_REQUIRES_ENABLED_TRANSFERS|
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS);
if (r == -ENOENT)
return sd_varlink_error(link, "io.systemd.SysUpdate.NoSuchTarget", NULL);
if (r < 0)
return r;
if (context.candidate)
r = sd_varlink_replybo(link, SD_JSON_BUILD_PAIR_STRING("available", context.candidate->version));
else
r = sd_varlink_error(link, "io.systemd.SysUpdate.NoUpdateNeeded", NULL);
if (r < 0)
return r;
return 0;
}
typedef enum {
UPDATE_ACTION_ACQUIRE = 1 << 0,
UPDATE_ACTION_INSTALL = 1 << 1,
} UpdateActionFlags;
static int verb_update_impl(int argc, char **argv, UpdateActionFlags action_flags) {
_cleanup_free_ char *booted_version = NULL;
UpdateSet *applied = NULL;
const char *version;
int r;
assert(argc <= 2);
version = argc >= 2 ? argv[1] : NULL;
_cleanup_(context_done) Context context = CONTEXT_NULL;
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "--component-all/--component-suggested currently not supported for '%s'.", argv[0]);
if (context.instances_max < 2)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"The --instances-max= argument must be >= 2 while updating");
if (context.reboot) {
/* If automatic reboot on completion is requested, let's first determine the currently booted image */
r = parse_os_release(context.root, "IMAGE_VERSION", &booted_version);
if (r < 0)
return log_error_errno(r, "Failed to parse /etc/os-release: %m");
if (!booted_version)
return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "/etc/os-release lacks IMAGE_VERSION field.");
}
bool installed = false;
int ret = 0;
r = context_load_online(
&context,
/* process_image_flags= */ 0,
READ_DEFINITIONS_REQUIRES_ENABLED_TRANSFERS|
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS|
READ_DEFINITIONS_REQUIRES_ENABLED_COMPONENT);
if (r < 0) {
if (r != -ENOENT)
return r;
/* No transfer files found. In that case, still do the installdb cleanup below */
RET_GATHER(ret, r);
} else {
if (action_flags & UPDATE_ACTION_ACQUIRE)
r = context_acquire(&context, version);
else
r = context_process_partial_and_pending(&context, version);
if (r < 0)
return r;
if (FLAGS_SET(action_flags, UPDATE_ACTION_INSTALL) && r > 0) { /* installation of update indicated */
r = context_install(&context, version, &applied);
if (r < 0)
return r;
installed = r > 0;
}
/* context_install() returns > 0 (and emits a notification) only if it actually applied an update. If
* nothing was applied but SYSTEMD_SYSUPDATE_FORCE_NOTIFY=1 is set, still notify subscribers (without a
* resource list), so e.g. a kernel/policy refresh can be triggered unconditionally. */
if ((action_flags & UPDATE_ACTION_INSTALL) && !installed) {
int f = secure_getenv_bool("SYSTEMD_SYSUPDATE_FORCE_NOTIFY");
if (f < 0 && f != -ENXIO)
log_debug_errno(f, "Failed to parse $SYSTEMD_SYSUPDATE_FORCE_NOTIFY, ignoring: %m");
if (f > 0)
(void) context_notify_subscribers(&context, /* us= */ NULL);
}
}
if (context.cleanup > 0)
RET_GATHER(ret, installdb_cleanup_component(&context));
if (installed) {
/* We installed something, yay */
if (context.reboot) {
assert(applied);
assert(booted_version);
if (strverscmp_improved(applied->version, booted_version) > 0) {
log_notice("Newly installed version is newer than booted version, rebooting.");
RET_GATHER(ret, reboot_now());
} else if (strverscmp_improved(applied->version, booted_version) == 0 &&
FLAGS_SET(applied->flags, UPDATE_INCOMPLETE)) {
log_notice("Currently booted version was incomplete and has been repaired, rebooting.");
RET_GATHER(ret, reboot_now());
} else
log_info("Booted version is newer or identical to newly installed version, not rebooting.");
}
}
return ret;
}
VERB(verb_update, "update", "[VERSION]", VERB_ANY, 2, 0,
"Install new version now");
static int verb_update(int argc, char *argv[], uintptr_t _data, void *userdata) {
UpdateActionFlags flags = UPDATE_ACTION_INSTALL;
if (!arg_offline)
flags |= UPDATE_ACTION_ACQUIRE;
return verb_update_impl(argc, argv, flags);
}
VERB(verb_acquire, "acquire", "[VERSION]", VERB_ANY, 2, 0,
"Acquire (download) new version now");
static int verb_acquire(int argc, char *argv[], uintptr_t _data, void *userdata) {
return verb_update_impl(argc, argv, UPDATE_ACTION_ACQUIRE);
}
VERB_NOARG(verb_vacuum, "vacuum",
"Make room, by deleting old versions");
static int verb_vacuum(int argc, char *argv[], uintptr_t _data, void *userdata) {
_cleanup_(context_done) Context context = CONTEXT_NULL;
int r;
assert(argc <= 1);
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "--component-all/--component-suggested currently not supported for '%s'.", argv[0]);
if (context.instances_max < 1)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"The --instances-max= argument must be >= 1 while vacuuming");
r = context_load_offline(
&context,
/* process_image_flags= */ 0,
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS);
if (r < 0)
return r;
return context_vacuum(&context, 0, NULL);
}
VERB_NOARG(verb_cleanup, "cleanup", "Clean up orphaned files");
static int verb_cleanup(int argc, char *argv[], uintptr_t _data, void *userdata) {
_cleanup_(context_done) Context context = CONTEXT_NULL;
int r;
assert(argc <= 1);
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.cleanup == 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invocation of 'cleanup' with --cleanup=no is contradictory, refusing.");
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (!IN_SET(context.component_select, SELECT_EXPLICIT, SELECT_ALL))
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "--component-suggested currently not supported for '%s'.", argv[0]);
r = context_load_offline(
&context,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r < 0)
return r;
int ret = 0;
RET_GATHER(ret, installdb_cleanup_component(&context));
if (context.component_select == SELECT_ALL) {
_cleanup_strv_free_ char **z = NULL;
r = installdb_list_components(&context, &z);
if (r < 0)
return log_error_errno(r, "Failed to enumerate components: %m");
STRV_FOREACH(i, z) {
_cleanup_(context_done) Context component_context = CONTEXT_NULL;
r = context_from_cmdline(&component_context);
if (r < 0)
return r;
/* Override the component with our iter. This needs to be done in a fresh Context
* as the installdb_fd and other state are specific to the component. */
r = free_and_strdup_warn(&component_context.component, *i);
if (r < 0)
return r;
r = context_load_offline(
&component_context,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r < 0)
return r;
RET_GATHER(ret, installdb_cleanup_component(&component_context));
}
}
return ret;
}
VERB(verb_pending_or_reboot, "pending", NULL, 1, 1, 0,
"Report whether a newer version is installed than currently booted");
VERB(verb_pending_or_reboot, "reboot", NULL, 1, 1, 0,
"Reboot if a newer version is installed than booted");
static int verb_pending_or_reboot(int argc, char *argv[], uintptr_t _data, void *userdata) {
_cleanup_(context_done) Context context = CONTEXT_NULL;
_cleanup_free_ char *booted_version = NULL;
int r;
assert(argc == 1);
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.image || context.root)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"The --root=/--image= switches may not be combined with the '%s' operation.", argv[0]);
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.component || context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"The --component=, --component-all and --component-suggested switches may not be combined with the '%s' operation, which only applies to the booted OS version.", argv[0]);
r = context_load_offline(
&context,
/* process_image_flags= */ 0,
READ_DEFINITIONS_REQUIRES_ENABLED_TRANSFERS|
READ_DEFINITIONS_REQUIRES_ANY_TRANSFERS|
READ_DEFINITIONS_REQUIRES_ENABLED_COMPONENT);
if (r < 0)
return r;
log_info("Determining installed update sets%s", glyph(GLYPH_ELLIPSIS));
r = context_discover_update_sets_by_flag(&context, UPDATE_INSTALLED);
if (r < 0)
return r;
if (!context.newest_installed)
return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "Couldn't find any suitable installed versions.");
r = parse_os_release(context.root, "IMAGE_VERSION", &booted_version);
if (r < 0) /* yes, context.root is NULL here, but we have to pass something, and it's a lot more readable
* if we see what the first argument is about */
return log_error_errno(r, "Failed to parse /etc/os-release: %m");
if (!booted_version)
return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "/etc/os-release lacks IMAGE_VERSION= field.");
r = strverscmp_improved(context.newest_installed->version, booted_version);
if (r > 0) {
log_notice("Newest installed version '%s' is newer than booted version '%s'.%s",
context.newest_installed->version, booted_version,
streq(argv[0], "pending") ? " Reboot recommended." : "");
if (streq(argv[0], "reboot"))
return reboot_now();
return EXIT_SUCCESS;
} else if (r == 0)
log_info("Newest installed version '%s' matches booted version '%s'.",
context.newest_installed->version, booted_version);
else
log_warning("Newest installed version '%s' is older than booted version '%s'.",
context.newest_installed->version, booted_version);
if (streq(argv[0], "pending")) /* When called as 'pending' tell the caller via failure exit code that there's nothing newer installed */
return EXIT_FAILURE;
return EXIT_SUCCESS;
}
static int context_list_components(Context *context, char ***ret_component_names, bool *ret_has_default_component) {
int r;
assert(context);
_cleanup_strv_free_ char **z = NULL;
r = get_component_list(context->root, &z);
if (r < 0)
return r;
if (ret_component_names)
*ret_component_names = TAKE_PTR(z);
/* Does the system have at least one transfer file in /etc/sysupdate.d, which can be considered a
* TARGET_HOST? See target_get_argument() in sysupdated.c */
if (ret_has_default_component)
*ret_has_default_component =
!context->definitions &&
!context->component &&
!context->root &&
!context->image &&
context->n_transfers > 0;
return 0;
}
static int context_component_is_suggested(Context *c) {
assert(c);
/* Only applies to components, not to the main system */
if (!c->component)
return -ENOTTY;
if (c->component_suggest >= 0)
return c->component_suggest;
if (!c->component_suggest_on) /* no condition → false */
return false;
return condition_test_list(c->component_suggest_on, environ, suggest_on_type_to_string, /* logger= */ NULL, /* userdata= */ NULL);
}
VERB_NOARG(verb_components, "components",
"Show list of components");
static int verb_components(int argc, char *argv[], uintptr_t _data, void *userdata) {
int r;
assert(argc <= 1);
_cleanup_(context_done) Context context = CONTEXT_NULL;
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "--component-all/--component-suggested currently not supported for '%s'.", argv[0]);
if (context.definitions)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"The --definitions= switch may not be combined with '%s'.", argv[0]);
r = context_load_offline(
&context,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r < 0)
return r;
_cleanup_strv_free_ char **component_names = NULL;
bool has_default_component = false;
r = context_list_components(&context, &component_names, &has_default_component);
if (r < 0)
return log_error_errno(r, "Failed to enumerate components: %m");
if (!sd_json_format_enabled(arg_json_format_flags)) {
if (!has_default_component && strv_isempty(component_names)) {
log_info("No components defined.");
return 0;
}
_cleanup_(table_unrefp) Table *t = table_new("enabled", "suggested", "component", "description", "documentation");
if (!t)
return log_oom();
table_set_ersatz_string(t, TABLE_ERSATZ_DASH);
if (has_default_component) {
r = table_add_many(
t,
TABLE_EMPTY,
TABLE_EMPTY,
TABLE_STRING, "<default>",
TABLE_SET_COLOR, ansi_highlight(),
TABLE_STRING, "Default Component",
TABLE_EMPTY);
if (r < 0)
return table_log_add_error(r);
}
STRV_FOREACH(i, component_names) {
_cleanup_(context_done) Context cc = CONTEXT_NULL;
r = context_from_base_with_component(
&context,
*i,
&cc);
if (r < 0)
return r;
r = context_load_offline(
&cc,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r == -ENOMEM)
return r;
if (r < 0)
continue;
r = table_add_many(
t,
TABLE_BOOLEAN_CHECKMARK, cc.component_enabled,
TABLE_SET_COLOR, ansi_highlight_green_red(cc.component_enabled));
if (r < 0)
return table_log_add_error(r);
r = context_component_is_suggested(&cc);
if (r < 0)
r = table_add_many(t, TABLE_EMPTY);
else
r = table_add_many(t, TABLE_BOOLEAN_CHECKMARK, r);
if (r < 0)
return table_log_add_error(r);
const char *doc = cc.component_documentation ? cc.component_documentation[0] : NULL;
r = table_add_many(
t,
TABLE_STRING, *i,
TABLE_STRING, cc.component_description,
TABLE_STRING, doc,
TABLE_SET_URL, doc);
if (r < 0)
return table_log_add_error(r);
}
return table_print_with_pager(t, arg_json_format_flags, arg_pager_flags, arg_legend);
} else {
_cleanup_(sd_json_variant_unrefp) sd_json_variant *json = NULL;
r = sd_json_buildo(&json, SD_JSON_BUILD_PAIR_BOOLEAN("default", has_default_component),
SD_JSON_BUILD_PAIR_STRV("components", component_names));
if (r < 0)
return log_error_errno(r, "Failed to create JSON: %m");
r = sd_json_variant_dump(json, arg_json_format_flags, stdout, NULL);
if (r < 0)
return log_error_errno(r, "Failed to print JSON: %m");
}
return 0;
}
VERB(verb_enable_component, "enable-component", "COMPONENT…", 1, VERB_ANY, 0,
"Enable component");
VERB(verb_enable_component, "disable-component", "COMPONENT…", 1, VERB_ANY, 0,
"Disable component");
static int verb_enable_component(int argc, char *argv[], uintptr_t _data, void *userdata) {
bool enable = streq(argv[0], "enable-component");
int r;
_cleanup_(context_done) Context context = CONTEXT_NULL;
r = context_from_cmdline(&context);
if (r < 0)
return r;
if (context.feature_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--feature-all/--feature-suggested is not supported for '%s'.", argv[0]);
if (context.definitions)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"The --definitions= switch may not be combined with '%s'.", argv[0]);
char **arguments, *array[2];
if (argc > 1) {
if (context.component || context.component_select != SELECT_EXPLICIT)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Either specify component names as positional parameter or via --component=/--component-all/--component-suggested, not both.");
arguments = strv_skip(argv, 1);
} else if (context.component_select == SELECT_EXPLICIT) {
if (!context.component)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No component specified.");
array[0] = context.component;
array[1] = NULL;
arguments = array;
} else {
assert(!context.component);
arguments = NULL;
}
STRV_FOREACH(name, arguments)
if (!component_name_valid(*name))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Component name invalid: %s", *name);
r = context_load_offline(
&context,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r < 0)
return r;
_cleanup_strv_free_ char **component_names = NULL;
r = context_list_components(&context, &component_names, /* ret_has_default_component= */ NULL);
if (r < 0)
return r;
_cleanup_strv_free_ char **suggested = NULL;
switch (context.component_select) {
case SELECT_EXPLICIT:
STRV_FOREACH(name, arguments)
if (!strv_contains(component_names, *name))
return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Component not found: %s", *name);
break;
case SELECT_ALL:
assert(!arguments);
arguments = component_names;
break;
case SELECT_SUGGESTED:
assert(!arguments);
STRV_FOREACH(name, component_names) {
_cleanup_(context_done) Context cc = CONTEXT_NULL;
r = context_from_base_with_component(&context, *name, &cc);
if (r < 0)
return r;
r = context_load_offline(
&cc,
/* process_image_flags= */ 0,
/* read_definitions_flags= */ 0);
if (r < 0)
continue;
r = context_component_is_suggested(&cc);
if (r < 0) {
log_warning_errno(r, "Failed to determine whether '%s' shall be enabled, skipping: %m", *name);
continue;
}
/* This reconciles the system with the suggestions: on 'enable-component' we act on
* the components that are suggested, on 'disable-component' we act on the ones that
* are not. Hence pick the components whose suggestion state matches the operation. */
if (!!r != !!enable) {
log_debug("Skipping '%s'.", *name);
continue;
}
log_info("%s '%s'.", enable ? "Enabling" : "Disabling", *name);
if (strv_extend(&suggested, *name) < 0)
return log_oom();
}
arguments = suggested;
break;
default:
assert_not_reached();
}
if (strv_isempty(arguments)) {
log_info("No components selected.");
return 0;
}
/* Component definition files live directly below the configuration directories, hence the drop-in
* goes right next to them below /etc. */
_cleanup_free_ char *dropin_dir = path_join(context.root, SYSCONF_DIR);
if (!dropin_dir)
return log_oom();
STRV_FOREACH(name, arguments) {
_cleanup_free_ char *fname = strjoin("sysupdate.", *name, ".component");
if (!fname)
return log_oom();
/* We assume that no sysadmin will name their config 50-systemd-sysupdate-enabled.conf */
r = write_drop_in_format(
dropin_dir,
fname,
50, "systemd-sysupdate-enabled",
"# Generated via 'systemd-sysupdate %s'\n\n"
"[Component]\n"
"Enabled=%s\n",
argv[0],
yes_no(enable));
if (r < 0)
return log_error_errno(r, "Failed to write drop-in for component '%s': %m", *name);
log_info("Component '%s' %s.", *name, enable ? "enabled" : "disabled");
}
return 0;
}
static int help(void) {
_cleanup_(table_unrefp) Table *common_options = NULL, *options = NULL, *verbs = NULL;
int r;
r = verbs_get_help_table(&verbs);
if (r < 0)
return r;
r = option_parser_get_help_table(&common_options);
if (r < 0)
return r;
r = option_parser_get_help_table_group("Options", &options);
if (r < 0)
return r;
(void) table_sync_column_widths(0, verbs, common_options, options);
help_cmdline("[OPTIONS…] [VERSION]");
help_abstract("Update OS images.");
help_section("Commands");
r = table_print_or_warn(verbs);
if (r < 0)
return r;
r = table_print_or_warn(common_options);
if (r < 0)
return r;
help_section("Options");
r = table_print_or_warn(options);
if (r < 0)
return r;
help_man_page_reference("systemd-sysupdate", "8");
return 0;
}
VERB_COMMON_HELP_HIDDEN(help);
static int parse_argv(int argc, char *argv[], char ***remaining_args) {
assert(argc >= 0);
assert(argv);
assert(remaining_args);
OptionParser opts = { argc, argv };
int r;
FOREACH_OPTION_OR_RETURN(c, &opts)
switch (c) {
OPTION_COMMON_HELP:
return help();
OPTION_COMMON_VERSION:
return version();
OPTION_GROUP("Options"):
break;
OPTION('C', "component", "NAME",
"Select component to update"):
if (isempty(opts.arg)) {
arg_component = mfree(arg_component);
arg_component_select = SELECT_EXPLICIT;
break;
}
if (!component_name_valid(opts.arg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Component name invalid: %s", opts.arg);
r = free_and_strdup_warn(&arg_component, opts.arg);
if (r < 0)
return r;
arg_component_select = SELECT_EXPLICIT;
break;
OPTION('A', "component-all", NULL, "Select all components"):
arg_component = mfree(arg_component);
arg_component_select = SELECT_ALL;
break;
OPTION('S', "component-suggested", NULL, "Select all suggested components"):
arg_component = mfree(arg_component);
arg_component_select = SELECT_SUGGESTED;
break;
OPTION('a', "feature-all", NULL, "Select all features"):
arg_feature_select = SELECT_ALL;
break;
OPTION('s', "feature-suggested", NULL, "Select all suggested features"):
arg_feature_select = SELECT_SUGGESTED;
break;
OPTION_LONG("definitions", "DIR",
"Find transfer definitions in specified directory"):
r = parse_path_argument(opts.arg, /* suppress_root= */ false, &arg_definitions);
if (r < 0)
return r;
break;
OPTION_LONG("root", "PATH",
"Operate on an alternate filesystem root"):
r = parse_path_argument(opts.arg, /* suppress_root= */ false, &arg_root);
if (r < 0)
return r;
break;
OPTION_LONG("image", "PATH",
"Operate on disk image as filesystem root"):
r = parse_path_argument(opts.arg, /* suppress_root= */ false, &arg_image);
if (r < 0)
return r;
break;
OPTION_LONG("image-policy", "POLICY",
"Specify disk image dissection policy"):
r = parse_image_policy_argument(opts.arg, &arg_image_policy);
if (r < 0)
return r;
break;
OPTION_LONG("transfer-source", "PATH",
"Specify the directory to transfer sources from"):
r = parse_path_argument(opts.arg, /* suppress_root= */ false, &arg_transfer_source);
if (r < 0)
return r;
break;
OPTION('m', "instances-max", "INT",
"How many instances to maintain"):
r = safe_atou64(opts.arg, &arg_instances_max);
if (r < 0)
return log_error_errno(r, "Failed to parse --instances-max= parameter: %s", opts.arg);
break;
OPTION_LONG("sync", "BOOL",
"Controls whether to sync data to disk"):
r = parse_boolean_argument("--sync=", opts.arg, &arg_sync);
if (r < 0)
return r;
break;
OPTION_LONG("verify", "BOOL",
"Force signature verification on or off"): {
bool b;
r = parse_boolean_argument("--verify=", opts.arg, &b);
if (r < 0)
return r;
arg_verify = b;
break;
}
OPTION_LONG("reboot", NULL,
"Reboot after updating to newer version"):
arg_reboot = true;
break;
OPTION_LONG("offline", NULL,
"Do not fetch metadata from the network"):
arg_offline = true;
break;
OPTION_LONG("cleanup", "BOOL", "Clean up orphaned files after completing update"): {
bool b;
r = parse_boolean_argument("--cleanup=", opts.arg, &b);
if (r < 0)
return r;
arg_cleanup = b;
break;
}
OPTION_COMMON_NO_PAGER:
arg_pager_flags |= PAGER_DISABLE;
break;
OPTION_COMMON_NO_LEGEND:
arg_legend = false;
break;
OPTION_COMMON_JSON:
r = parse_json_argument(opts.arg, &arg_json_format_flags);
if (r <= 0)
return r;
break;
}
if (arg_image && arg_root)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
if (arg_image || arg_root) {
if (arg_reboot)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "The --reboot switch may not be combined with --root= or --image=.");
if (arg_definitions)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "The --definitions= switch may not be combined with --root= or --image=.");
}
if ((arg_component || arg_component_select != SELECT_EXPLICIT)) {
if (arg_reboot)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "The --reboot switch may not be combined with --component=/--component-all/--component-suggested, as automatic reboots only apply to the booted OS version.");
if (arg_definitions)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "The --definitions= and --component=/--component-all/--component-suggested switches may not be combined.");
}
r = sd_varlink_invocation(SD_VARLINK_ALLOW_ACCEPT);
if (r < 0)
return log_error_errno(r, "Failed to check if invoked in Varlink mode: %m");
if (r > 0)
arg_varlink = true;
*remaining_args = option_parser_get_args(&opts);
return 1;
}
static int vl_server(void) {
_cleanup_(sd_varlink_server_unrefp) sd_varlink_server *varlink_server = NULL;
_cleanup_(server_done) Server server = SERVER_NULL;
int r;
r = varlink_server_new(&varlink_server,
SD_VARLINK_SERVER_ACCOUNT_UID|SD_VARLINK_SERVER_INHERIT_USERDATA,
&server);
if (r < 0)
return log_error_errno(r, "Failed to allocate Varlink server: %m");
r = sd_varlink_server_add_interface(varlink_server, &vl_interface_io_systemd_SysUpdate);
if (r < 0)
return log_error_errno(r, "Failed to add Varlink interface: %m");
r = sd_varlink_server_bind_method_many(
varlink_server,
"io.systemd.SysUpdate.CheckNew", vl_method_check_new);
if (r < 0)
return log_error_errno(r, "Failed to bind Varlink method: %m");
r = sd_varlink_server_loop_auto(varlink_server);
if (r < 0)
return log_error_errno(r, "Failed to run Varlink event loop: %m");
return 0;
}
static int run(int argc, char *argv[]) {
int r;
LIBAPPARMOR_NOTE(recommended);
LIBAUDIT_NOTE(recommended);
LIBBLKID_NOTE(recommended);
LIBCRYPTO_NOTE(suggested);
LIBCRYPTSETUP_NOTE(suggested);
LIBMOUNT_NOTE(recommended);
LIBSELINUX_NOTE(recommended);
LIBTSS2_ESYS_NOTE(suggested);
LIBTSS2_MU_NOTE(suggested);
LIBTSS2_RC_NOTE(suggested);
log_setup();
char **args = NULL;
r = parse_argv(argc, argv, &args);
if (r <= 0)
return r;
if (arg_varlink)
return vl_server(); /* Invocation as Varlink service */
return dispatch_verb(args, NULL);
}
DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);
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