void tommy_list_concat(tommy_list* first, tommy_list* second)
{
tommy_node* first_head;
tommy_node* first_tail;
tommy_node* second_head;
if (tommy_list_empty(second))
return;
if (tommy_list_empty(first)) {
*first = *second;
return;
}
first_head = tommy_list_head(first);
second_head = tommy_list_head(second);
first_tail = tommy_list_tail(first);
/* set the "circular" prev list */
first_head->prev = second_head->prev;
second_head->prev = first_tail;
/* set the "0 terminated" next list */
first_tail->next = second_head;
}
int disk_is_empty(struct snapraid_disk* disk, block_off_t blockmax)
{
struct chunk_disk_empty arg = { blockmax };
/* if there is an element, it's not empty */
/* even if links and dirs have no block allocation */
if (!tommy_list_empty(&disk->filelist))
return 0;
if (!tommy_list_empty(&disk->linklist))
return 0;
if (!tommy_list_empty(&disk->dirlist))
return 0;
/* search for any chunk inside blockmax */
if (tommy_tree_search_compare(&disk->fs_parity, chunk_disk_empty_compare, &arg) != 0)
return 0;
/* finally, it's empty */
return 1;
}
void tommy_list_sort(tommy_list* list, tommy_compare_func* cmp)
{
tommy_chain chain;
tommy_node* head;
if (tommy_list_empty(list))
return;
head = tommy_list_head(list);
/* create a chain from the list */
chain.head = head;
chain.tail = head->prev;
tommy_chain_mergesort(&chain, cmp);
/* restore the list */
tommy_list_set(list, chain.head, chain.tail);
}
switch_status_t switch_api_sflow_session_delete(switch_device_t device,
switch_handle_t sflow_hdl,
bool all_cleanup) {
#ifdef P4_SFLOW_ENABLE
switch_sflow_info_t *sflow_info;
sflow_info = switch_sflow_info_get(sflow_hdl);
if (!sflow_info) {
return SWITCH_STATUS_INVALID_HANDLE;
}
if (!tommy_list_empty(&sflow_info->match_list) && !all_cleanup) {
return SWITCH_STATUS_RESOURCE_IN_USE;
}
if (all_cleanup) {
switch_sflow_match_entry_t *entry;
tommy_node *node = NULL;
while ((node = tommy_list_head(&sflow_info->match_list)) && node) {
entry = (switch_sflow_match_entry_t *)node->data;
// could be ingress or egress match entry
switch_pd_sflow_match_table_delete(device, entry);
tommy_list_remove_existing(&sflow_info->match_list, node);
switch_sflow_ace_handle_delete(entry->sflow_ace_hdl);
}
}
switch_pd_sflow_session_delete(device, sflow_info);
if (sflow_info->mirror_hdl != SWITCH_API_INVALID_HANDLE) {
switch_api_mirror_session_delete(device, sflow_info->mirror_hdl);
}
switch_sflow_handle_delete(sflow_hdl);
return SWITCH_STATUS_SUCCESS;
#else
(void)device;
(void)sflow_hdl;
(void)all_cleanup;
return SWITCH_STATUS_FAILURE;
#endif // P4_SFLOW_ENABLE
}
void state_device(struct snapraid_state* state, int operation, tommy_list* filterlist_disk)
{
tommy_node* i;
unsigned j;
tommy_list high;
tommy_list low;
int ret;
switch (operation) {
case DEVICE_UP : msg_progress("Spinup...\n"); break;
case DEVICE_DOWN : msg_progress("Spindown...\n"); break;
}
tommy_list_init(&high);
tommy_list_init(&low);
/* for all disks */
for (i = state->disklist; i != 0; i = i->next) {
struct snapraid_disk* disk = i->data;
devinfo_t* entry;
if (filterlist_disk != 0 && filter_path(filterlist_disk, 0, disk->name, 0) != 0)
continue;
entry = calloc_nofail(1, sizeof(devinfo_t));
entry->device = disk->device;
pathcpy(entry->name, sizeof(entry->name), disk->name);
pathcpy(entry->mount, sizeof(entry->mount), disk->dir);
pathcpy(entry->smartctl, sizeof(entry->smartctl), disk->smartctl);
tommy_list_insert_tail(&high, &entry->node, entry);
}
/* for all parities */
for (j = 0; j < state->level; ++j) {
devinfo_t* entry;
if (filterlist_disk != 0 && filter_path(filterlist_disk, 0, lev_config_name(j), 0) != 0)
continue;
entry = calloc_nofail(1, sizeof(devinfo_t));
entry->device = state->parity[j].device;
pathcpy(entry->name, sizeof(entry->name), lev_config_name(j));
pathcpy(entry->mount, sizeof(entry->mount), state->parity[j].path);
pathcpy(entry->smartctl, sizeof(entry->smartctl), state->parity[j].smartctl);
pathcut(entry->mount); /* remove the parity file */
tommy_list_insert_tail(&high, &entry->node, entry);
}
if (state->opt.fake_device) {
ret = devtest(&low, operation);
} else {
int others = operation == DEVICE_SMART;
ret = devquery(&high, &low, operation, others);
}
/* if the list is empty, it's not supported in this platform */
if (ret == 0 && tommy_list_empty(&low))
ret = -1;
if (ret != 0) {
const char* ope = 0;
switch (operation) {
case DEVICE_UP : ope = "Spinup"; break;
case DEVICE_DOWN : ope = "Spindown"; break;
case DEVICE_LIST : ope = "Device listing"; break;
case DEVICE_SMART : ope = "Smart"; break;
}
log_fatal("%s is unsupported in this platform.\n", ope);
} else {
if (operation == DEVICE_LIST) {
for (i = tommy_list_head(&low); i != 0; i = i->next) {
devinfo_t* devinfo = i->data;
devinfo_t* parent = devinfo->parent;
#ifdef _WIN32
printf("%" PRIu64 "\t%s\t%08" PRIx64 "\t%s\t%s\n", devinfo->device, devinfo->wfile, parent->device, parent->wfile, parent->name);
#else
printf("%u:%u\t%s\t%u:%u\t%s\t%s\n", major(devinfo->device), minor(devinfo->device), devinfo->file, major(parent->device), minor(parent->device), parent->file, parent->name);
#endif
}
}
if (operation == DEVICE_SMART)
state_smart(state->level + tommy_list_count(&state->disklist), &low);
}
tommy_list_foreach(&high, free);
tommy_list_foreach(&low, free);
}
int main(int argc, char* argv[])
{
int c;
struct snapraid_option opt;
char conf[PATH_MAX];
struct snapraid_state state;
int operation;
block_off_t blockstart;
block_off_t blockcount;
int ret;
tommy_list filterlist_file;
tommy_list filterlist_disk;
int filter_missing;
int filter_error;
int plan;
int olderthan;
char* e;
const char* command;
const char* import_timestamp;
const char* import_content;
const char* log_file;
int lock;
const char* gen_conf;
const char* run;
int speedtest;
int period;
time_t t;
struct tm* tm;
int i;
/* defaults */
config(conf, sizeof(conf), argv[0]);
memset(&opt, 0, sizeof(opt));
opt.io_error_limit = 100;
blockstart = 0;
blockcount = 0;
tommy_list_init(&filterlist_file);
tommy_list_init(&filterlist_disk);
period = 1000;
filter_missing = 0;
filter_error = 0;
plan = SCRUB_AUTO;
olderthan = SCRUB_AUTO;
import_timestamp = 0;
import_content = 0;
log_file = 0;
lock = 0;
gen_conf = 0;
speedtest = 0;
run = 0;
opterr = 0;
while ((c =
#if HAVE_GETOPT_LONG
getopt_long(argc, argv, OPTIONS, long_options, 0))
#else
getopt(argc, argv, OPTIONS))
#endif
!= EOF) {
switch (c) {
case 'c' :
pathimport(conf, sizeof(conf), optarg);
break;
case 'f' : {
struct snapraid_filter* filter = filter_alloc_file(1, optarg);
if (!filter) {
/* LCOV_EXCL_START */
log_fatal("Invalid filter specification '%s'\n", optarg);
log_fatal("Filters using relative paths are not supported. Ensure to add an initial slash\n");
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
tommy_list_insert_tail(&filterlist_file, &filter->node, filter);
} break;
case 'd' : {
struct snapraid_filter* filter = filter_alloc_disk(1, optarg);
if (!filter) {
/* LCOV_EXCL_START */
log_fatal("Invalid filter specification '%s'\n", optarg);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
tommy_list_insert_tail(&filterlist_disk, &filter->node, filter);
} break;
case 'm' :
filter_missing = 1;
opt.expected_missing = 1;
break;
case 'e' :
/* when processing only error, we filter both files and blocks */
/* and we apply fixes only to synced ones */
filter_error = 1;
opt.badonly = 1;
opt.syncedonly = 1;
break;
case 'p' :
if (strcmp(optarg, "bad") == 0) {
plan = SCRUB_BAD;
} else if (strcmp(optarg, "new") == 0) {
plan = SCRUB_NEW;
} else if (strcmp(optarg, "full") == 0) {
plan = SCRUB_FULL;
} else {
plan = strtoul(optarg, &e, 10);
if (!e || *e || plan > 100) {
/* LCOV_EXCL_START */
log_fatal("Invalid plan/percentage '%s'\n", optarg);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
break;
case 'o' :
olderthan = strtoul(optarg, &e, 10);
if (!e || *e || olderthan > 1000) {
/* LCOV_EXCL_START */
log_fatal("Invalid number of days '%s'\n", optarg);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
break;
case 'S' :
blockstart = strtoul(optarg, &e, 0);
if (!e || *e) {
/* LCOV_EXCL_START */
log_fatal("Invalid start position '%s'\n", optarg);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
break;
case 'B' :
blockcount = strtoul(optarg, &e, 0);
if (!e || *e) {
/* LCOV_EXCL_START */
log_fatal("Invalid count number '%s'\n", optarg);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
break;
case 'L' :
opt.io_error_limit = strtoul(optarg, &e, 0);
if (!e || *e) {
/* LCOV_EXCL_START */
log_fatal("Invalid error limit number '%s'\n", optarg);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
break;
case 'i' :
if (import_timestamp) {
/* LCOV_EXCL_START */
log_fatal("Import directory '%s' already specified as '%s'\n", optarg, import_timestamp);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
import_timestamp = optarg;
break;
case OPT_TEST_IMPORT_CONTENT :
if (import_content) {
/* LCOV_EXCL_START */
log_fatal("Import directory '%s' already specified as '%s'\n", optarg, import_content);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
import_content = optarg;
break;
case 'l' :
if (log_file) {
/* LCOV_EXCL_START */
log_fatal("Log file '%s' already specified as '%s'\n", optarg, log_file);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
log_file = optarg;
break;
case 'Z' :
opt.force_zero = 1;
break;
case 'E' :
opt.force_empty = 1;
break;
case 'U' :
opt.force_uuid = 1;
break;
case 'D' :
opt.force_device = 1;
break;
case 'N' :
opt.force_nocopy = 1;
break;
case 'F' :
opt.force_full = 1;
break;
case 'a' :
opt.auditonly = 1;
break;
case 'h' :
opt.prehash = 1;
break;
case 'v' :
++msg_level;
break;
case 'q' :
--msg_level;
break;
case 'G' :
opt.gui = 1;
break;
case 'H' :
usage();
exit(EXIT_SUCCESS);
case 'V' :
version();
exit(EXIT_SUCCESS);
case 'T' :
speedtest = 1;
break;
case 'C' :
gen_conf = optarg;
break;
case OPT_TEST_KILL_AFTER_SYNC :
opt.kill_after_sync = 1;
break;
case OPT_TEST_EXPECT_UNRECOVERABLE :
opt.expect_unrecoverable = 1;
break;
case OPT_TEST_EXPECT_RECOVERABLE :
opt.expect_recoverable = 1;
break;
case OPT_TEST_SKIP_SELF :
opt.skip_self = 1;
break;
case OPT_TEST_SKIP_SIGN :
opt.skip_sign = 1;
break;
case OPT_TEST_SKIP_FALLOCATE :
opt.skip_fallocate = 1;
break;
case OPT_TEST_SKIP_SEQUENTIAL :
opt.skip_sequential = 1;
break;
case OPT_TEST_SKIP_DEVICE :
opt.skip_device = 1;
period = 50; /* reduce period of the speed test */
break;
case OPT_TEST_SKIP_CONTENT_CHECK :
opt.skip_content_check = 1;
break;
case OPT_TEST_SKIP_PARITY_ACCESS :
opt.skip_parity_access = 1;
break;
case OPT_TEST_SKIP_DISK_ACCESS :
opt.skip_disk_access = 1;
break;
case OPT_TEST_FORCE_MURMUR3 :
opt.force_murmur3 = 1;
break;
case OPT_TEST_FORCE_SPOOKY2 :
opt.force_spooky2 = 1;
break;
case OPT_TEST_SKIP_LOCK :
opt.skip_lock = 1;
break;
case OPT_TEST_FORCE_ORDER_PHYSICAL :
opt.force_order = SORT_PHYSICAL;
break;
case OPT_TEST_FORCE_ORDER_INODE :
opt.force_order = SORT_INODE;
break;
case OPT_TEST_FORCE_ORDER_ALPHA :
opt.force_order = SORT_ALPHA;
break;
case OPT_TEST_FORCE_ORDER_DIR :
opt.force_order = SORT_DIR;
break;
case OPT_TEST_FORCE_SCRUB_AT :
opt.force_scrub_at = atoi(optarg);
break;
case OPT_TEST_FORCE_SCRUB_EVEN :
opt.force_scrub_even = 1;
break;
case OPT_TEST_FORCE_CONTENT_WRITE :
opt.force_content_write = 1;
break;
case OPT_TEST_EXPECT_FAILURE :
/* invert the exit codes */
exit_success = 1;
exit_failure = 0;
break;
case OPT_TEST_EXPECT_NEED_SYNC :
/* invert the exit codes */
exit_success = 1;
exit_sync_needed = 0;
break;
case OPT_TEST_RUN :
run = optarg;
break;
case OPT_TEST_FORCE_SCAN_WINFIND :
opt.force_scan_winfind = 1;
break;
case OPT_TEST_FORCE_PROGRESS :
opt.force_progress = 1;
break;
case OPT_TEST_FORCE_AUTOSAVE_AT :
opt.force_autosave_at = atoi(optarg);
break;
case OPT_TEST_FAKE_DEVICE :
opt.fake_device = 1;
break;
case OPT_NO_WARNINGS :
opt.no_warnings = 1;
break;
default :
/* LCOV_EXCL_START */
log_fatal("Unknown option '%c'\n", (char)c);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
os_init(opt.force_scan_winfind);
raid_init();
crc32c_init();
if (speedtest != 0) {
speed(period);
os_done();
exit(EXIT_SUCCESS);
}
if (gen_conf != 0) {
generate_configuration(gen_conf);
os_done();
exit(EXIT_SUCCESS);
}
if (optind + 1 != argc) {
/* LCOV_EXCL_START */
usage();
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
command = argv[optind];
if (strcmp(command, "diff") == 0) {
operation = OPERATION_DIFF;
} else if (strcmp(argv[optind], "sync") == 0) {
operation = OPERATION_SYNC;
} else if (strcmp(argv[optind], "check") == 0) {
operation = OPERATION_CHECK;
} else if (strcmp(argv[optind], "fix") == 0) {
operation = OPERATION_FIX;
} else if (strcmp(argv[optind], "test-dry") == 0) {
operation = OPERATION_DRY;
} else if (strcmp(argv[optind], "dup") == 0) {
operation = OPERATION_DUP;
} else if (strcmp(argv[optind], "list") == 0) {
operation = OPERATION_LIST;
} else if (strcmp(argv[optind], "pool") == 0) {
operation = OPERATION_POOL;
} else if (strcmp(argv[optind], "rehash") == 0) {
operation = OPERATION_REHASH;
} else if (strcmp(argv[optind], "scrub") == 0) {
operation = OPERATION_SCRUB;
} else if (strcmp(argv[optind], "status") == 0) {
operation = OPERATION_STATUS;
} else if (strcmp(argv[optind], "test-rewrite") == 0) {
operation = OPERATION_REWRITE;
} else if (strcmp(argv[optind], "test-read") == 0) {
operation = OPERATION_READ;
} else if (strcmp(argv[optind], "test-nano") == 0) {
operation = OPERATION_NANO;
} else if (strcmp(argv[optind], "up") == 0) {
operation = OPERATION_SPINUP;
} else if (strcmp(argv[optind], "down") == 0) {
operation = OPERATION_SPINDOWN;
} else if (strcmp(argv[optind], "devices") == 0) {
operation = OPERATION_DEVICES;
} else if (strcmp(argv[optind], "smart") == 0) {
operation = OPERATION_SMART;
} else {
/* LCOV_EXCL_START */
log_fatal("Unknown command '%s'\n", argv[optind]);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
/* check options compatibility */
switch (operation) {
case OPERATION_CHECK :
break;
default :
if (opt.auditonly) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -a, --audit-only with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
switch (operation) {
case OPERATION_FIX :
break;
default :
if (opt.force_device) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -D, --force-device with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
switch (operation) {
case OPERATION_SYNC :
case OPERATION_CHECK :
case OPERATION_FIX :
break;
default :
if (opt.force_nocopy) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -N, --force-nocopy with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
switch (operation) {
case OPERATION_SYNC :
break;
default :
if (opt.prehash) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -h, --pre-hash with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
if (opt.force_full) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -F, --force-full with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
if (opt.force_full && opt.force_nocopy) {
/* LCOV_EXCL_START */
log_fatal("You cannot use the -F, --force-full and -N, --force-nocopy options at the same time\n");
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
if (opt.prehash && opt.force_nocopy) {
/* LCOV_EXCL_START */
log_fatal("You cannot use the -h, --pre-hash and -N, --force-nocopy options at the same time\n");
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
switch (operation) {
case OPERATION_CHECK :
case OPERATION_FIX :
case OPERATION_DRY :
break;
default :
if (!tommy_list_empty(&filterlist_file)) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -f, --filter with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
if (!tommy_list_empty(&filterlist_disk)) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -d, --filter-disk with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
if (filter_missing != 0) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -m, --filter-missing with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
if (filter_error != 0) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -e, --filter-error with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
/* errors must be always fixed on all disks */
/* becasue we don't keep the information on what disk is the error */
if (filter_error != 0 && !tommy_list_empty(&filterlist_disk)) {
/* LCOV_EXCL_START */
log_fatal("You cannot use -e, --filter-error and -d, --filter-disk at the same time\n");
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
switch (operation) {
case OPERATION_CHECK :
case OPERATION_FIX :
break;
default :
if (import_timestamp != 0 || import_content != 0) {
/* LCOV_EXCL_START */
log_fatal("You cannot import with the '%s' command\n", command);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
switch (operation) {
case OPERATION_LIST :
case OPERATION_DUP :
case OPERATION_STATUS :
case OPERATION_REWRITE :
case OPERATION_READ :
case OPERATION_REHASH :
case OPERATION_SPINUP : /* we want to do it in different threads to avoid blocking */
/* avoid to check and access data disks if not needed */
opt.skip_disk_access = 1;
break;
}
switch (operation) {
case OPERATION_DIFF :
case OPERATION_LIST :
case OPERATION_DUP :
case OPERATION_POOL :
case OPERATION_STATUS :
case OPERATION_REWRITE :
case OPERATION_READ :
case OPERATION_REHASH :
case OPERATION_NANO :
case OPERATION_SPINUP : /* we want to do it in different threads to avoid blocking */
/* avoid to check and access parity disks if not needed */
opt.skip_parity_access = 1;
break;
}
switch (operation) {
case OPERATION_FIX :
case OPERATION_CHECK :
/* avoid to stop processing if a content file is not accessible */
opt.skip_content_access = 1;
break;
}
switch (operation) {
case OPERATION_DIFF :
case OPERATION_LIST :
case OPERATION_DUP :
case OPERATION_POOL :
case OPERATION_NANO :
case OPERATION_SPINUP :
case OPERATION_SPINDOWN :
case OPERATION_DEVICES :
case OPERATION_SMART :
opt.skip_self = 1;
break;
}
switch (operation) {
case OPERATION_DEVICES :
case OPERATION_SMART :
/* we may need to use these commands during operations */
opt.skip_lock = 1;
break;
}
/* open the log file */
log_open(log_file);
/* print generic info into the log */
t = time(0);
tm = localtime(&t);
log_tag("version:%s\n", PACKAGE_VERSION);
log_tag("unixtime:%" PRIi64 "\n", (int64_t)t);
if (tm) {
char datetime[64];
strftime(datetime, sizeof(datetime), "%Y-%m-%d %H:%M:%S", tm);
log_tag("time:%s\n", datetime);
}
log_tag("command:%s\n", command);
for (i = 0; i < argc; ++i)
log_tag("argv:%u:%s\n", i, argv[i]);
log_flush();
if (!opt.skip_self)
selftest();
state_init(&state);
/* read the configuration file */
state_config(&state, conf, command, &opt, &filterlist_disk);
/* set the raid mode */
raid_mode(state.raid_mode);
#if HAVE_LOCKFILE
/* create the lock file */
if (!opt.skip_lock && state.lockfile[0]) {
lock = lock_lock(state.lockfile);
if (lock == -1) {
/* LCOV_EXCL_START */
if (errno != EWOULDBLOCK) {
log_fatal("Error creating the lock file '%s'. %s.\n", state.lockfile, strerror(errno));
} else {
log_fatal("The lock file '%s' is already locked!\n", state.lockfile);
log_fatal("SnapRAID is already in use!\n");
}
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
#else
(void)lock;
#endif
if (operation == OPERATION_DIFF) {
state_read(&state);
ret = state_diff(&state);
/* abort if sync needed */
if (ret > 0)
exit(EXIT_SYNC_NEEDED);
} else if (operation == OPERATION_SYNC) {
/* in the next state read ensures to clear all the past hashes in case */
/* we are reading from an incomplete sync */
/* The undeterminated hash are only for CHG/DELETED blocks for which we don't */
/* know if the previous interrupted sync was able to update or not the parity. */
/* The sync process instead needs to trust this information because it's used */
/* to avoid to recompute the parity if all the input are equals as before. */
/* In these cases we don't know if the old state is still the one */
/* stored inside the parity, because after an aborted sync, the parity */
/* may be or may be not have been updated with the data that may be now */
/* deleted. Then we reset the hash to a bogus value. */
/* An example for CHG blocks is: */
/* - One file is added creating a CHG block with ZERO state */
/* - Sync aborted after updating the parity to the new state, */
/* but without saving the content file representing this new BLK state. */
/* - File is now deleted after the aborted sync */
/* - Sync again, deleting the blocks overt the CHG ones */
/* with the hash of CHG blocks not represeting the real parity state */
/* An example for DELETED blocks is: */
/* - One file is deleted creating DELETED blocks */
/* - Sync aborted after, updating the parity to the new state, */
/* but without saving the content file representing this new EMPTY state. */
/* - Another file is added again over the DELETE ones */
/* with the hash of DELETED blocks not represeting the real parity state */
state.clear_past_hash = 1;
state_read(&state);
state_scan(&state);
/* refresh the size info before the content write */
state_refresh(&state);
memory();
/* intercept signals while operating */
signal_init();
/* save the new state before the sync */
/* this allow to recover the case of the changes in the array after an aborted sync. */
/* for example, think at this case: */
/* - add some files at the array */
/* - run a sync command, it will recompute the parity adding the new files */
/* - abort the sync command before it stores the new content file */
/* - delete the not yet synced files from the array */
/* - run a new sync command */
/* the new sync command has now way to know that the parity file was modified */
/* because the files triggering these changes are now deleted */
/* and they aren't listed in the content file */
if (state.need_write)
state_write(&state);
/* run a test command if required */
if (run != 0) {
ret = system(run); /* ignore error */
if (ret != 0) {
/* LCOV_EXCL_START */
log_fatal("Error in running command '%s'.\n", run);
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
/* waits some time to ensure that any concurrent modification done at the files, */
/* using the same mtime read by the scan process, will be read by sync. */
/* Note that any later modification done, potentially not read by sync, will have */
/* a different mtime, and it will be syncronized at the next sync. */
/* The worst case is the FAT filesystem with a two seconds resolution for mtime. */
/* If you don't use FAT, the wait is not needed, because most filesystems have now */
/* at least microseconds resolution, but better to be safe. */
if (!opt.skip_self)
sleep(2);
ret = state_sync(&state, blockstart, blockcount);
/* save the new state if required */
if (!opt.kill_after_sync && (state.need_write || state.opt.force_content_write))
state_write(&state);
/* abort if required */
if (ret != 0) {
/* LCOV_EXCL_START */
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
} else if (operation == OPERATION_DRY) {
state_read(&state);
/* filter */
state_skip(&state);
state_filter(&state, &filterlist_file, &filterlist_disk, filter_missing, filter_error);
memory();
/* intercept signals while operating */
signal_init();
state_dry(&state, blockstart, blockcount);
} else if (operation == OPERATION_REHASH) {
state_read(&state);
/* intercept signals while operating */
signal_init();
state_rehash(&state);
/* save the new state if required */
if (state.need_write)
state_write(&state);
} else if (operation == OPERATION_SCRUB) {
state_read(&state);
memory();
/* intercept signals while operating */
signal_init();
ret = state_scrub(&state, plan, olderthan);
/* save the new state if required */
if (state.need_write || state.opt.force_content_write)
state_write(&state);
/* abort if required */
if (ret != 0) {
/* LCOV_EXCL_START */
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
} else if (operation == OPERATION_REWRITE) {
state_read(&state);
/* intercept signals while operating */
signal_init();
state_write(&state);
memory();
} else if (operation == OPERATION_READ) {
state_read(&state);
memory();
} else if (operation == OPERATION_NANO) {
state_read(&state);
state_nano(&state);
/* intercept signals while operating */
signal_init();
state_write(&state);
memory();
} else if (operation == OPERATION_SPINUP) {
state_device(&state, DEVICE_UP);
} else if (operation == OPERATION_SPINDOWN) {
state_device(&state, DEVICE_DOWN);
} else if (operation == OPERATION_DEVICES) {
state_device(&state, DEVICE_LIST);
} else if (operation == OPERATION_SMART) {
state_device(&state, DEVICE_SMART);
} else if (operation == OPERATION_STATUS) {
state_read(&state);
memory();
state_status(&state);
} else if (operation == OPERATION_DUP) {
state_read(&state);
state_dup(&state);
} else if (operation == OPERATION_LIST) {
state_read(&state);
state_list(&state);
} else if (operation == OPERATION_POOL) {
state_read(&state);
state_pool(&state);
} else {
state_read(&state);
/* if we are also trying to recover */
if (!state.opt.auditonly) {
/* import the user specified dirs */
if (import_timestamp != 0)
state_search(&state, import_timestamp);
if (import_content != 0)
state_import(&state, import_content);
/* import from all the array */
if (!state.opt.force_nocopy)
state_search_array(&state);
}
/* filter */
state_skip(&state);
state_filter(&state, &filterlist_file, &filterlist_disk, filter_missing, filter_error);
memory();
/* intercept signals while operating */
signal_init();
if (operation == OPERATION_CHECK) {
ret = state_check(&state, 0, blockstart, blockcount);
} else { /* it's fix */
ret = state_check(&state, 1, blockstart, blockcount);
}
/* abort if required */
if (ret != 0) {
/* LCOV_EXCL_START */
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
/* close log file */
log_close(log_file);
#if HAVE_LOCKFILE
if (!opt.skip_lock && state.lockfile[0]) {
if (lock_unlock(lock) == -1) {
/* LCOV_EXCL_START */
log_fatal("Error closing the lock file '%s'. %s.\n", state.lockfile, strerror(errno));
exit(EXIT_FAILURE);
/* LCOV_EXCL_STOP */
}
}
#endif
state_done(&state);
tommy_list_foreach(&filterlist_file, (tommy_foreach_func*)filter_free);
tommy_list_foreach(&filterlist_disk, (tommy_foreach_func*)filter_free);
os_done();
return EXIT_SUCCESS;
}
