/* this function is intended to encapsulate the basic swupd
* initializations for the majority of commands, that is:
* - Make sure root is the user running the code
* - Initialize globals
* - initialize mounted directories
* - Create necessary directories
* - Get the lock
* - Initialize curl
* - Initialize signature checking
*/
int swupd_init(void)
{
int ret = 0;
check_root();
record_fds();
/* Check that our system time is reasonably valid before continuing,
* or the certificate verification will fail with invalid time */
if (timecheck) {
if (!verify_time()) {
ret = EBADTIME;
goto out_fds;
}
}
if (!init_globals()) {
ret = EINIT_GLOBALS;
goto out_fds;
}
get_mounted_directories();
if (create_required_dirs()) {
ret = EREQUIRED_DIRS;
goto out_fds;
}
if (p_lockfile() < 0) {
ret = ELOCK_FILE;
goto out_fds;
}
if (swupd_curl_init() != 0) {
ret = ECURL_INIT;
goto out_close_lock;
}
/* If --nosigcheck, we do not attempt any signature checking */
if (sigcheck && !initialize_signature()) {
ret = ESIGNATURE;
terminate_signature();
goto out_close_lock;
}
return ret;
out_close_lock:
v_lockfile();
out_fds:
dump_file_descriptor_leaks();
return ret;
}
/*
* list_installable_bundles()
* Parse the full manifest for the current version of the OS and print
* all available bundles.
*/
int list_installable_bundles()
{
struct list *list;
struct file *file;
struct manifest *MoM = NULL;
int current_version;
int lock_fd;
int ret;
if (!init_globals()) {
return EINIT_GLOBALS;
}
current_version = read_version_from_subvol_file(path_prefix);
if (swupd_init(&lock_fd) != 0) {
printf("Error: Failed updater initialization. Exiting now\n");
return ECURL_INIT;
}
ret = create_required_dirs();
if (ret != 0) {
printf("State directory %s cannot be recreated, aborting removal\n", STATE_DIR);
v_lockfile(lock_fd);
return EXIT_FAILURE;
}
get_mounted_directories();
if (!check_network()) {
printf("Error: Network issue, unable to download manifest\n");
v_lockfile(lock_fd);
return EXIT_FAILURE;
}
swupd_curl_set_current_version(current_version);
ret = load_manifests(current_version, current_version, "MoM", NULL, &MoM);
if (ret != 0) {
v_lockfile(lock_fd);
return ret;
}
list = MoM->manifests;
while (list) {
file = list->data;
list = list->next;
printf("%s\n", file->filename);
}
free_manifest(MoM);
v_lockfile(lock_fd);
return 0;
}
/* this function is intended to encapsulate the basic swupd
* initializations for the majority of commands, that is:
* - Make sure root is the user running the code
* - Initialize log facility
* - Get the lock
* - initialize mounted directories
* - Initialize curl
*/
int swupd_init(int *lock_fd)
{
int ret = 0;
check_root();
if (!init_globals()) {
ret = EINIT_GLOBALS;
goto out_fds;
}
get_mounted_directories();
if (create_required_dirs()) {
ret = EREQUIRED_DIRS;
goto out_fds;
}
*lock_fd = p_lockfile();
if (*lock_fd < 0) {
ret = ELOCK_FILE;
goto out_fds;
}
if (swupd_curl_init() != 0) {
ret = ECURL_INIT;
goto out_close_lock;
}
if (!initialize_signature()) {
ret = ESIGNATURE;
terminate_signature();
goto out_close_lock;
}
return ret;
out_close_lock:
v_lockfile(*lock_fd);
out_fds:
dump_file_descriptor_leaks();
return ret;
}
int search_main(int argc, char **argv)
{
int ret = 0;
int lock_fd;
struct manifest *MoM = NULL;
if (!parse_options(argc, argv) ||
create_required_dirs()) {
return EXIT_FAILURE;
}
if (search_type == '0') {
/* Default to a system-side search */
search_type = 'e';
}
if (!init_globals()) {
ret = EINIT_GLOBALS;
goto clean_exit;
}
ret = swupd_init(&lock_fd);
if (ret != 0) {
printf("Failed swupd initialization, exiting now.\n");
goto clean_exit;
}
if (!check_network()) {
printf("Error: Network issue, unable to proceed with update\n");
ret = EXIT_FAILURE;
goto clean_exit;
}
if (!init) {
printf("Searching for '%s'\n\n", search_string);
}
ret = download_manifests(&MoM);
if (ret != 0) {
printf("Error: Failed to download manifests\n");
goto clean_exit;
}
if (init) {
printf("Successfully retreived manifests. Exiting\n");
ret = 0;
goto clean_exit;
}
/* Arbitrary upper limit to ensure we aren't getting handed garbage */
if (!display_files &&
((strlen(search_string) <= 0) || (strlen(search_string) > NAME_MAX))) {
printf("Error - search string invalid\n");
ret = EXIT_FAILURE;
goto clean_exit;
}
do_search(MoM, search_type, search_string);
clean_exit:
free_manifest(MoM);
free_globals();
swupd_curl_cleanup();
return ret;
}
/* Bundle install one ore more bundles passed in bundles
* param as a null terminated array of strings
*/
int install_bundles(char **bundles)
{
int lock_fd;
int ret = 0;
int current_version;
struct manifest *mom;
struct list *iter;
struct sub *sub;
struct file *file;
/* step 1: initialize swupd and get current version from OS */
if (!init_globals()) {
return EINIT_GLOBALS;
}
ret = swupd_init(&lock_fd);
if (ret != 0) {
printf("Failed updater initialization, exiting now.\n");
return ret;
}
current_version = read_version_from_subvol_file(path_prefix);
swupd_curl_set_current_version(current_version);
/* first of all, make sure STATE_DIR is there, recreate if necessary*/
ret = create_required_dirs();
if (ret != 0) {
printf("State directory %s cannot be recreated, aborting installation\n", STATE_DIR);
goto clean_and_exit;
}
ret = load_manifests(current_version, current_version, "MoM", NULL, &mom);
if (ret != 0) {
printf("Cannot load official manifest MoM for version %i\n", current_version);
ret = EMOM_NOTFOUND;
goto clean_and_exit;
}
/* step 2: check bundle args are valid if so populate subs struct */
int i;
for (i = 0; *bundles; ++bundles) {
if (is_tracked_bundle(*bundles)) {
printf("%s bundle already installed, skipping it\n", *bundles);
continue;
}
if (!manifest_has_component(mom, *bundles)) {
printf("%s bundle name is invalid, skipping it...\n", *bundles);
continue;
}
if (component_subscribed(*bundles)) {
continue;
}
create_and_append_subscription(*bundles);
i++;
printf("Added bundle %s for installation\n", *bundles);
}
if (i == 0) {
printf("There are no pending bundles to install, exiting now\n");
ret = EBUNDLE_INSTALL;
goto clean_manifest_and_exit;
}
subscription_versions_from_MoM(mom, 0);
recurse_manifest(mom, NULL);
consolidate_submanifests(mom);
/* step 3: download neccessary packs */
ret = rm_staging_dir_contents("download");
printf("Downloading required packs...\n");
ret = download_subscribed_packs(0, current_version, true);
if (ret != 0) {
printf("pack downloads failed, cannot proceed with the installation, exiting.\n");
goto clean_subs_and_exit;
}
/* step 4: Install all bundle(s) files into the fs */
printf("Installing bundle(s) files...\n");
iter = list_head(mom->files);
while (iter) {
file = iter->data;
iter = iter->next;
if (file->is_deleted || file->do_not_update || ignore(file)) {
continue;
}
ret = do_staging(file);
if (ret == 0) {
rename_staged_file_to_final(file);
}
}
sync();
/* step 5: create bundle(s) subscription entries to track them
*
* Strictly speaking each manifest has an entry to write its own bundle filename
* and thus tracking automagically, here just making sure.
*/
iter = list_head(subs);
while (iter) {
sub = iter->data;
iter = iter->next;
printf("Tracking %s bundle on the system\n", sub->component);
ret = track_bundle_in_system(sub->component);
if (ret != 0) {
printf("Cannot track %s bundle on the system\n", sub->component);
}
}
/* Run any scripts that are needed to complete update */
run_scripts();
ret = 0;
printf("Bundle(s) installation done.\n");
clean_subs_and_exit:
free_subscriptions();
clean_manifest_and_exit:
free_manifest(mom);
clean_and_exit:
swupd_curl_cleanup();
v_lockfile(lock_fd);
dump_file_descriptor_leaks();
free_globals();
return ret;
}
/* This function is a fresh new implementation for a bundle
* remove without being tied to verify loop, this means
* improved speed and space as well as more roubustness and
* flexibility. What it does is basically:
*
* 1) Read MoM and load all submanifests except the one to be
* removed and then consolidate them.
* 2) Load the removed bundle submanifest.
* 3) Order the file list by filename
* 4) Deduplicate removed submanifest file list that happens
* to be on the MoM (minus bundle to be removed).
* 5) iterate over to be removed bundle submanifest file list
* performing a unlink(2) for each filename.
* 6) Done.
*/
int remove_bundle(const char *bundle_name)
{
int lock_fd;
int ret = 0;
int current_version = CURRENT_OS_VERSION;
struct manifest *current_mom, *bundle_manifest;
/* Initially we don't support format nor path_prefix
* for bundle_rm but eventually that will be added, then
* set_format_string() and init_globals() must be pulled out
* to the caller to properly initialize in case those opts
* passed to the command.
*/
set_format_string(NULL);
if (!init_globals()) {
return EINIT_GLOBALS;
}
ret = swupd_init(&lock_fd);
if (ret != 0) {
printf("Failed updater initialization, exiting now.\n");
return ret;
}
/* os-core bundle not allowed to be removed...
* although this is going to be caught later because of all files
* being marked as 'duplicated' and note removing anything
* anyways, better catch here and return success, no extra work to be done.
*/
if (strcmp(bundle_name, "os-core") == 0) {
ret = EBUNDLE_NOT_TRACKED;
goto out_free_curl;
}
if (!is_tracked_bundle(bundle_name)) {
ret = EBUNDLE_NOT_TRACKED;
goto out_free_curl;
}
current_version = read_version_from_subvol_file(path_prefix);
swupd_curl_set_current_version(current_version);
/* first of all, make sure STATE_DIR is there, recreate if necessary*/
ret = create_required_dirs();
if (ret != 0) {
printf("State directory %s cannot be recreated, aborting removal\n", STATE_DIR);
goto out_free_curl;
}
ret = load_manifests(current_version, current_version, "MoM", NULL, ¤t_mom);
if (ret != 0) {
goto out_free_curl;
}
/* load all tracked bundles into memory */
read_subscriptions_alt();
/* now popout the one to be removed */
ret = unload_tracked_bundle(bundle_name);
if (ret != 0) {
goto out_free_mom;
}
subscription_versions_from_MoM(current_mom, 0);
/* load all submanifest minus the one to be removed */
recurse_manifest(current_mom, NULL);
consolidate_submanifests(current_mom);
/* Now that we have the consolidated list of all files, load bundle to be removed submanifest*/
ret = load_bundle_manifest(bundle_name, current_version, &bundle_manifest);
if (ret != 0) {
goto out_free_mom;
}
/* deduplication needs file list sorted by filename, do so */
bundle_manifest->files = list_sort(bundle_manifest->files, file_sort_filename);
deduplicate_files_from_manifest(&bundle_manifest, current_mom);
printf("Deleting bundle files...\n");
remove_files_in_manifest_from_fs(bundle_manifest);
printf("Untracking bundle from system...\n");
rm_bundle_file(bundle_name);
printf("Success: Bundle removed\n");
free_manifest(bundle_manifest);
out_free_mom:
free_manifest(current_mom);
out_free_curl:
if (ret) {
printf("Error: Bundle remove failed\n");
}
swupd_curl_cleanup();
v_lockfile(lock_fd);
dump_file_descriptor_leaks();
return ret;
}
