static void check_csync_vio_stat_file(void **state)
{
CSYNC *csync = *state;
csync_vio_file_stat_t *fs;
int rc;
fs = csync_vio_file_stat_new();
assert_non_null(fs);
rc = csync_vio_stat(csync, CSYNC_TEST_FILE, fs);
assert_int_equal(rc, 0);
assert_string_equal(fs->name, "file.txt");
assert_int_equal(fs->type, CSYNC_VIO_FILE_TYPE_REGULAR);
csync_vio_file_stat_destroy(fs);
}
static void check_csync_vio_stat_dir(void **state)
{
CSYNC *csync = *state;
csync_vio_file_stat_t *fs;
int rc;
fs = csync_vio_file_stat_new();
assert_non_null(fs);
rc = csync_vio_stat(csync, CSYNC_TEST_DIR, fs);
assert_int_equal(rc, 0);
assert_string_equal(fs->name, "csync_test");
assert_int_equal(fs->type, CSYNC_VIO_FILE_TYPE_DIRECTORY);
csync_vio_file_stat_destroy(fs);
}
/* File tree walker */
int csync_ftw(CSYNC *ctx, const char *uri, csync_walker_fn fn,
unsigned int depth) {
char *filename = NULL;
char *d_name = NULL;
csync_vio_handle_t *dh = NULL;
csync_vio_file_stat_t *dirent = NULL;
csync_vio_file_stat_t *fs = NULL;
csync_file_stat_t *previous_fs = NULL;
int read_from_db = 0;
int rc = 0;
int res = 0;
bool do_read_from_db = (ctx->current == REMOTE_REPLICA && ctx->remote.read_from_db);
if (uri[0] == '\0') {
errno = ENOENT;
ctx->status_code = CSYNC_STATUS_PARAM_ERROR;
goto error;
}
read_from_db = ctx->remote.read_from_db;
// if the etag of this dir is still the same, its content is restored from the
// database.
if( do_read_from_db ) {
if( ! fill_tree_from_db(ctx, uri) ) {
errno = ENOENT;
ctx->status_code = CSYNC_STATUS_OPENDIR_ERROR;
goto error;
}
goto done;
}
if ((dh = csync_vio_opendir(ctx, uri)) == NULL) {
int asp = 0;
/* permission denied */
ctx->status_code = csync_errno_to_status(errno, CSYNC_STATUS_OPENDIR_ERROR);
if (errno == EACCES) {
return 0;
} else if(errno == ENOENT) {
asp = asprintf( &ctx->error_string, "%s", uri);
if (asp < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "asprintf failed!");
}
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "opendir failed for %s - errno %d", uri, errno);
}
goto error;
}
while ((dirent = csync_vio_readdir(ctx, dh))) {
const char *path = NULL;
size_t ulen = 0;
int flen;
int flag;
d_name = dirent->name;
if (d_name == NULL) {
ctx->status_code = CSYNC_STATUS_READDIR_ERROR;
goto error;
}
/* skip "." and ".." */
if (d_name[0] == '.' && (d_name[1] == '\0'
|| (d_name[1] == '.' && d_name[2] == '\0'))) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
continue;
}
flen = asprintf(&filename, "%s/%s", uri, d_name);
if (flen < 0) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
goto error;
}
/* Create relative path */
switch (ctx->current) {
case LOCAL_REPLICA:
ulen = strlen(ctx->local.uri) + 1;
break;
case REMOTE_REPLICA:
ulen = strlen(ctx->remote.uri) + 1;
break;
default:
break;
}
if (((size_t)flen) < ulen) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
ctx->status_code = CSYNC_STATUS_UNSUCCESSFUL;
goto error;
}
path = filename + ulen;
/* skip ".csync_journal.db" and ".csync_journal.db.ctmp" */
if (c_streq(path, ".csync_journal.db")
|| c_streq(path, ".csync_journal.db.ctmp")
|| c_streq(path, ".csync_journal.db.ctmp-journal")
|| c_streq(path, ".csync-progressdatabase")) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
SAFE_FREE(filename);
continue;
}
/* Only for the local replica we have to stat(), for the remote one we have all data already */
if (ctx->replica == LOCAL_REPLICA) {
fs = csync_vio_file_stat_new();
res = csync_vio_stat(ctx, filename, fs);
} else {
fs = dirent;
res = 0;
}
if( res == 0) {
switch (fs->type) {
case CSYNC_VIO_FILE_TYPE_SYMBOLIC_LINK:
flag = CSYNC_FTW_FLAG_SLINK;
break;
case CSYNC_VIO_FILE_TYPE_DIRECTORY:
flag = CSYNC_FTW_FLAG_DIR;
break;
case CSYNC_VIO_FILE_TYPE_BLOCK_DEVICE:
case CSYNC_VIO_FILE_TYPE_CHARACTER_DEVICE:
case CSYNC_VIO_FILE_TYPE_SOCKET:
flag = CSYNC_FTW_FLAG_SPEC;
break;
case CSYNC_VIO_FILE_TYPE_FIFO:
flag = CSYNC_FTW_FLAG_SPEC;
break;
default:
flag = CSYNC_FTW_FLAG_FILE;
break;
};
} else {
flag = CSYNC_FTW_FLAG_NSTAT;
}
if( ctx->current == LOCAL_REPLICA ) {
char *etag = NULL;
int len = strlen( path );
uint64_t h = c_jhash64((uint8_t *) path, len, 0);
etag = csync_statedb_get_etag( ctx, h );
if( etag ) {
SAFE_FREE(fs->etag);
fs->etag = etag;
fs->fields |= CSYNC_VIO_FILE_STAT_FIELDS_ETAG;
if( c_streq(etag, "")) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Uniq ID from Database is EMPTY: %s", path);
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Uniq ID from Database: %s -> %s", path, fs->etag ? fs->etag : "<NULL>" );
}
}
}
previous_fs = ctx->current_fs;
/* Call walker function for each file */
rc = fn(ctx, filename, fs, flag);
/* this function may update ctx->current and ctx->read_from_db */
if (ctx->current_fs && previous_fs && ctx->current_fs->child_modified) {
previous_fs->child_modified = ctx->current_fs->child_modified;
}
/* Only for the local replica we have to destroy stat(), for the remote one it is a pointer to dirent */
if (ctx->replica == LOCAL_REPLICA) {
csync_vio_file_stat_destroy(fs);
}
if (rc < 0) {
if (CSYNC_STATUS_IS_OK(ctx->status_code)) {
ctx->status_code = CSYNC_STATUS_UPDATE_ERROR;
}
ctx->current_fs = previous_fs;
goto error;
}
if (flag == CSYNC_FTW_FLAG_DIR && depth
&& (!ctx->current_fs || ctx->current_fs->instruction != CSYNC_INSTRUCTION_IGNORE)) {
rc = csync_ftw(ctx, filename, fn, depth - 1);
if (rc < 0) {
ctx->current_fs = previous_fs;
goto error;
}
if (ctx->current_fs && !ctx->current_fs->child_modified
&& ctx->current_fs->instruction == CSYNC_INSTRUCTION_EVAL) {
ctx->current_fs->instruction = CSYNC_INSTRUCTION_NONE;
ctx->current_fs->should_update_etag = true;
}
}
if (flag == CSYNC_FTW_FLAG_DIR && ctx->current_fs
&& (ctx->current_fs->instruction == CSYNC_INSTRUCTION_EVAL ||
ctx->current_fs->instruction == CSYNC_INSTRUCTION_NEW ||
ctx->current_fs->instruction == CSYNC_INSTRUCTION_EVAL_RENAME)) {
ctx->current_fs->should_update_etag = true;
}
ctx->current_fs = previous_fs;
ctx->remote.read_from_db = read_from_db;
SAFE_FREE(filename);
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
}
csync_vio_closedir(ctx, dh);
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, " <= Closing walk for %s with read_from_db %d", uri, read_from_db);
done:
csync_vio_file_stat_destroy(dirent);
SAFE_FREE(filename);
return rc;
error:
ctx->remote.read_from_db = read_from_db;
if (dh != NULL) {
csync_vio_closedir(ctx, dh);
}
SAFE_FREE(filename);
return -1;
}
/* File tree walker */
int csync_ftw(CSYNC *ctx, const char *uri, csync_walker_fn fn,
unsigned int depth) {
char *filename = NULL;
char *d_name = NULL;
csync_vio_handle_t *dh = NULL;
csync_vio_file_stat_t *dirent = NULL;
csync_file_stat_t *previous_fs = NULL;
int read_from_db = 0;
int rc = 0;
int res = 0;
bool do_read_from_db = (ctx->current == REMOTE_REPLICA && ctx->remote.read_from_db);
if (uri[0] == '\0') {
errno = ENOENT;
ctx->status_code = CSYNC_STATUS_PARAM_ERROR;
goto error;
}
read_from_db = ctx->remote.read_from_db;
// if the etag of this dir is still the same, its content is restored from the
// database.
if( do_read_from_db ) {
if( ! fill_tree_from_db(ctx, uri) ) {
errno = ENOENT;
ctx->status_code = CSYNC_STATUS_OPENDIR_ERROR;
goto error;
}
goto done;
}
const char *uri_for_vio = uri;
if (ctx->current == REMOTE_REPLICA) {
uri_for_vio += strlen(ctx->remote.uri);
if (strlen(uri_for_vio) > 0 && uri_for_vio[0] == '/') {
uri_for_vio++; // cut leading slash
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "URI without fuzz for %s is \"%s\"", uri, uri_for_vio);
}
if ((dh = csync_vio_opendir(ctx, uri_for_vio)) == NULL) {
if (ctx->abort) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "Aborted!");
ctx->status_code = CSYNC_STATUS_ABORTED;
goto error;
}
int asp = 0;
/* permission denied */
ctx->status_code = csync_errno_to_status(errno, CSYNC_STATUS_OPENDIR_ERROR);
if (errno == EACCES) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Permission denied.");
if (mark_current_item_ignored(ctx, previous_fs, CSYNC_STATUS_PERMISSION_DENIED)) {
goto done;
}
} else if(errno == ENOENT) {
asp = asprintf( &ctx->error_string, "%s", uri);
if (asp < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "asprintf failed!");
}
}
// 403 Forbidden can be sent by the server if the file firewall is active.
// A file or directory should be ignored and sync must continue. See #3490
else if(errno == ERRNO_FORBIDDEN) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Directory access Forbidden (File Firewall?)");
if( mark_current_item_ignored(ctx, previous_fs, CSYNC_STATUS_FORBIDDEN) ) {
goto done;
}
/* if current_fs is not defined here, better throw an error */
}
// The server usually replies with the custom "503 Storage not available"
// if some path is temporarily unavailable. But in some cases a standard 503
// is returned too. Thus we can't distinguish the two and will treat any
// 503 as request to ignore the folder. See #3113 #2884.
else if(errno == ERRNO_STORAGE_UNAVAILABLE || errno == ERRNO_SERVICE_UNAVAILABLE) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN, "Storage was not available!");
if( mark_current_item_ignored(ctx, previous_fs, CSYNC_STATUS_STORAGE_UNAVAILABLE ) ) {
goto done;
}
/* if current_fs is not defined here, better throw an error */
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR, "opendir failed for %s - errno %d", uri, errno);
}
goto error;
}
while ((dirent = csync_vio_readdir(ctx, dh))) {
const char *path = NULL;
size_t ulen = 0;
int flen;
int flag;
/* Conversion error */
if (dirent->name == NULL && dirent->original_name) {
ctx->status_code = CSYNC_STATUS_INVALID_CHARACTERS;
ctx->error_string = dirent->original_name; // take ownership
dirent->original_name = NULL;
goto error;
}
d_name = dirent->name;
if (d_name == NULL) {
ctx->status_code = CSYNC_STATUS_READDIR_ERROR;
goto error;
}
/* skip "." and ".." */
if ( (d_name[0] == '.' && d_name[1] == '\0')
|| (d_name[0] == '.' && d_name[1] == '.' && d_name[2] == '\0')) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
continue;
}
flen = asprintf(&filename, "%s/%s", uri, d_name);
if (flen < 0) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
ctx->status_code = CSYNC_STATUS_MEMORY_ERROR;
goto error;
}
/* Create relative path */
switch (ctx->current) {
case LOCAL_REPLICA:
ulen = strlen(ctx->local.uri) + 1;
break;
case REMOTE_REPLICA:
ulen = strlen(ctx->remote.uri) + 1;
break;
default:
break;
}
if (((size_t)flen) < ulen) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
ctx->status_code = CSYNC_STATUS_UNSUCCESSFUL;
goto error;
}
path = filename + ulen;
/* skip ".csync_journal.db" and ".csync_journal.db.ctmp" */
/* Isn't this done via csync_exclude already? */
if (c_streq(path, ".csync_journal.db")
|| c_streq(path, ".csync_journal.db.ctmp")
|| c_streq(path, ".csync_journal.db.ctmp-journal")
|| c_streq(path, ".csync-progressdatabase")
|| c_streq(path, ".csync_journal.db-shm")
|| c_streq(path, ".csync_journal.db-wal")
|| c_streq(path, ".csync_journal.db-journal")) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
SAFE_FREE(filename);
continue;
}
/* Only for the local replica we have to stat(), for the remote one we have all data already */
if (ctx->replica == LOCAL_REPLICA) {
res = csync_vio_stat(ctx, filename, dirent);
} else {
res = 0;
}
/* if the filename starts with a . we consider it a hidden file
* For windows, the hidden state is also discovered within the vio
* local stat function.
*/
if( d_name[0] == '.' ) {
if (strcmp(".sys.admin#recall#", d_name) != 0) { /* recall file shall not be ignored (#4420) */
dirent->flags |= CSYNC_VIO_FILE_FLAGS_HIDDEN;
}
}
if( res == 0) {
switch (dirent->type) {
case CSYNC_VIO_FILE_TYPE_SYMBOLIC_LINK:
flag = CSYNC_FTW_FLAG_SLINK;
break;
case CSYNC_VIO_FILE_TYPE_DIRECTORY:
flag = CSYNC_FTW_FLAG_DIR;
break;
case CSYNC_VIO_FILE_TYPE_BLOCK_DEVICE:
case CSYNC_VIO_FILE_TYPE_CHARACTER_DEVICE:
case CSYNC_VIO_FILE_TYPE_SOCKET:
flag = CSYNC_FTW_FLAG_SPEC;
break;
case CSYNC_VIO_FILE_TYPE_FIFO:
flag = CSYNC_FTW_FLAG_SPEC;
break;
default:
flag = CSYNC_FTW_FLAG_FILE;
break;
};
} else {
flag = CSYNC_FTW_FLAG_NSTAT;
}
previous_fs = ctx->current_fs;
/* Call walker function for each file */
rc = fn(ctx, filename, dirent, flag);
/* this function may update ctx->current and ctx->read_from_db */
if (rc < 0) {
if (CSYNC_STATUS_IS_OK(ctx->status_code)) {
ctx->status_code = CSYNC_STATUS_UPDATE_ERROR;
}
ctx->current_fs = previous_fs;
goto error;
}
if (flag == CSYNC_FTW_FLAG_DIR && depth && rc == 0
&& (!ctx->current_fs || ctx->current_fs->instruction != CSYNC_INSTRUCTION_IGNORE)) {
rc = csync_ftw(ctx, filename, fn, depth - 1);
if (rc < 0) {
ctx->current_fs = previous_fs;
goto error;
}
if (ctx->current_fs && !ctx->current_fs->child_modified
&& ctx->current_fs->instruction == CSYNC_INSTRUCTION_EVAL) {
ctx->current_fs->instruction = CSYNC_INSTRUCTION_NONE;
if (ctx->current == REMOTE_REPLICA) {
ctx->current_fs->should_update_metadata = true;
}
}
if (ctx->current_fs && previous_fs && ctx->current_fs->has_ignored_files) {
/* If a directory has ignored files, put the flag on the parent directory as well */
previous_fs->has_ignored_files = ctx->current_fs->has_ignored_files;
}
}
if (ctx->current_fs && previous_fs && ctx->current_fs->child_modified) {
/* If a directory has modified files, put the flag on the parent directory as well */
previous_fs->child_modified = ctx->current_fs->child_modified;
}
if (flag == CSYNC_FTW_FLAG_DIR && ctx->current_fs
&& (ctx->current_fs->instruction == CSYNC_INSTRUCTION_EVAL ||
ctx->current_fs->instruction == CSYNC_INSTRUCTION_NEW)) {
ctx->current_fs->should_update_metadata = true;
}
ctx->current_fs = previous_fs;
ctx->remote.read_from_db = read_from_db;
SAFE_FREE(filename);
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
}
csync_vio_closedir(ctx, dh);
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, " <= Closing walk for %s with read_from_db %d", uri, read_from_db);
done:
csync_vio_file_stat_destroy(dirent);
SAFE_FREE(filename);
return rc;
error:
ctx->remote.read_from_db = read_from_db;
if (dh != NULL) {
csync_vio_closedir(ctx, dh);
}
SAFE_FREE(filename);
return -1;
}
/* File tree walker */
int csync_ftw(CSYNC *ctx, const char *uri, csync_walker_fn fn,
unsigned int depth) {
char errbuf[256] = {0};
char *filename = NULL;
char *d_name = NULL;
csync_vio_handle_t *dh = NULL;
csync_vio_file_stat_t *dirent = NULL;
csync_vio_file_stat_t *fs = NULL;
int rc = 0;
if (uri[0] == '\0') {
errno = ENOENT;
goto error;
}
if ((dh = csync_vio_opendir(ctx, uri)) == NULL) {
/* permission denied */
if (errno == EACCES) {
return 0;
} else {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"opendir failed for %s - %s",
uri,
strerror_r(errno, errbuf, sizeof(errbuf)));
goto error;
}
}
while ((dirent = csync_vio_readdir(ctx, dh))) {
const char *path = NULL;
int flag;
d_name = dirent->name;
if (d_name == NULL) {
goto error;
}
/* skip "." and ".." */
if (d_name[0] == '.' && (d_name[1] == '\0'
|| (d_name[1] == '.' && d_name[2] == '\0'))) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
continue;
}
if (asprintf(&filename, "%s/%s", uri, d_name) < 0) {
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
goto error;
}
/* Create relative path for checking the exclude list */
switch (ctx->current) {
case LOCAL_REPLICA:
path = filename + strlen(ctx->local.uri) + 1;
break;
case REMOTE_REPLCIA:
path = filename + strlen(ctx->remote.uri) + 1;
break;
default:
break;
}
/* Check if file is excluded */
if (csync_excluded(ctx, path)) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "%s excluded", path);
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
continue;
}
fs = csync_vio_file_stat_new();
if (csync_vio_stat(ctx, filename, fs) == 0) {
switch (fs->type) {
case CSYNC_VIO_FILE_TYPE_SYMBOLIC_LINK:
flag = CSYNC_FTW_FLAG_SLINK;
break;
case CSYNC_VIO_FILE_TYPE_DIRECTORY:
flag = CSYNC_FTW_FLAG_DIR;
break;
case CSYNC_VIO_FILE_TYPE_BLOCK_DEVICE:
case CSYNC_VIO_FILE_TYPE_CHARACTER_DEVICE:
case CSYNC_VIO_FILE_TYPE_SOCKET:
flag = CSYNC_FTW_FLAG_SPEC;
break;
case CSYNC_VIO_FILE_TYPE_FIFO:
flag = CSYNC_FTW_FLAG_SPEC;
break;
default:
flag = CSYNC_FTW_FLAG_FILE;
break;
};
} else {
flag = CSYNC_FTW_FLAG_NSTAT;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_TRACE, "walk: %s", filename);
/* Call walker function for each file */
rc = fn(ctx, filename, fs, flag);
csync_vio_file_stat_destroy(fs);
if (rc < 0) {
csync_vio_closedir(ctx, dh);
goto done;
}
if (flag == CSYNC_FTW_FLAG_DIR && depth) {
rc = csync_ftw(ctx, filename, fn, depth - 1);
if (rc < 0) {
csync_vio_closedir(ctx, dh);
goto done;
}
}
SAFE_FREE(filename);
csync_vio_file_stat_destroy(dirent);
dirent = NULL;
}
csync_vio_closedir(ctx, dh);
done:
csync_vio_file_stat_destroy(dirent);
SAFE_FREE(filename);
return rc;
error:
SAFE_FREE(filename);
return -1;
}
/* check time difference between the replicas */
time_t csync_timediff(CSYNC *ctx) {
time_t timediff = -1;
char errbuf[256] = {0};
char *luri = NULL;
char *ruri = NULL;
csync_vio_handle_t *fp = NULL;
csync_vio_file_stat_t *st = NULL;
csync_vio_handle_t *dp = NULL;
/* try to open remote dir to get auth */
ctx->replica = ctx->remote.type;
dp = csync_vio_opendir(ctx, ctx->remote.uri);
if (dp == NULL) {
/*
* To prevent problems especially with pam_csync we shouldn't try to create the
* remote directory here. Just fail!
*/
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"Access dienied to remote uri: %s - %s",
ctx->remote.uri,
errbuf);
return -1;
}
csync_vio_closedir(ctx, dp);
if (asprintf(&luri, "%s/.csync_timediff.ctmp", ctx->local.uri) < 0) {
goto out;
}
if (asprintf(&ruri, "%s/.csync_timediff.ctmp", ctx->remote.uri) < 0) {
goto out;
}
/* create temporary file on local */
ctx->replica = ctx->local.type;
fp = csync_vio_creat(ctx, luri, 0644);
if (fp == NULL) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"Unable to create temporary file: %s - %s",
luri,
errbuf);
goto out;
}
csync_vio_close(ctx, fp);
/* Get the modification time */
st = csync_vio_file_stat_new();
if (csync_vio_stat(ctx, luri, st) < 0) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"Synchronisation is not possible! %s - %s",
luri,
errbuf);
goto out;
}
timediff = st->mtime;
csync_vio_file_stat_destroy(st);
st = NULL;
/* create temporary file on remote replica */
ctx->replica = ctx->remote.type;
fp = csync_vio_creat(ctx, ruri, 0644);
if (fp == NULL) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"Unable to create temporary file: %s - %s",
ruri,
errbuf);
goto out;
}
csync_vio_close(ctx, fp);
/* Get the modification time */
st = csync_vio_file_stat_new();
if (csync_vio_stat(ctx, ruri, st) < 0) {
strerror_r(errno, errbuf, sizeof(errbuf));
CSYNC_LOG(CSYNC_LOG_PRIORITY_FATAL,
"Synchronisation is not possible! %s - %s",
ruri,
errbuf);
goto out;
}
/* calc time difference */
timediff = llabs(timediff - st->mtime);
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "Time difference: %ld seconds", timediff);
out:
csync_vio_file_stat_destroy(st);
ctx->replica = ctx->local.type;
csync_vio_unlink(ctx, luri);
SAFE_FREE(luri);
ctx->replica = ctx->remote.type;
csync_vio_unlink(ctx, ruri);
SAFE_FREE(ruri);
return timediff;
}
static int _csync_push_file(CSYNC *ctx, csync_file_stat_t *st) {
enum csync_replica_e srep = -1;
enum csync_replica_e drep = -1;
enum csync_replica_e rep_bak = -1;
char *suri = NULL;
char *duri = NULL;
char *turi = NULL;
char *tdir = NULL;
csync_vio_handle_t *sfp = NULL;
csync_vio_handle_t *dfp = NULL;
csync_vio_file_stat_t *tstat = NULL;
char errbuf[256] = {0};
char buf[MAX_XFER_BUF_SIZE] = {0};
ssize_t bread = 0;
ssize_t bwritten = 0;
struct timeval times[2];
int rc = -1;
int count = 0;
int flags = 0;
rep_bak = ctx->replica;
switch (ctx->current) {
case LOCAL_REPLICA:
srep = ctx->local.type;
drep = ctx->remote.type;
if (asprintf(&suri, "%s/%s", ctx->local.uri, st->path) < 0) {
rc = -1;
goto out;
}
if (asprintf(&duri, "%s/%s", ctx->remote.uri, st->path) < 0) {
rc = -1;
goto out;
}
break;
case REMOTE_REPLCIA:
srep = ctx->remote.type;
drep = ctx->local.type;
if (asprintf(&suri, "%s/%s", ctx->remote.uri, st->path) < 0) {
rc = -1;
goto out;
}
if (asprintf(&duri, "%s/%s", ctx->local.uri, st->path) < 0) {
rc = -1;
goto out;
}
break;
default:
break;
}
/* Open the source file */
ctx->replica = srep;
flags = O_RDONLY|O_NOFOLLOW;
/* O_NOATIME can only be set by the owner of the file or the superuser */
if (st->uid == ctx->pwd.uid || ctx->pwd.euid == 0) {
flags |= O_NOATIME;
}
sfp = csync_vio_open(ctx, suri, flags, 0);
if (sfp == NULL) {
if (errno == ENOMEM) {
rc = -1;
} else {
rc = 1;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: open(O_RDONLY), error: %s",
suri,
strerror_r(errno, errbuf, sizeof(errbuf)));
goto out;
}
/* create the temporary file name */
if (asprintf(&turi, "%s.XXXXXX", duri) < 0) {
rc = -1;
goto out;
}
/* We just want a random file name here, open checks if the file exists. */
if (c_tmpname(turi) < 0) {
rc = -1;
goto out;
}
/* Create the destination file */
ctx->replica = drep;
while ((dfp = csync_vio_open(ctx, turi, O_CREAT|O_EXCL|O_WRONLY|O_NOCTTY,
C_FILE_MODE)) == NULL) {
switch (errno) {
case EEXIST:
if (count++ > 10) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: open(O_CREAT), error: max count exceeded",
duri);
rc = 1;
goto out;
}
if (c_tmpname(turi) < 0) {
rc = -1;
goto out;
}
break;
case ENOENT:
/* get the directory name */
tdir = c_dirname(turi);
if (tdir == NULL) {
rc = -1;
goto out;
}
if (csync_vio_mkdirs(ctx, tdir, C_DIR_MODE) < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_WARN,
"dir: %s, command: mkdirs, error: %s",
tdir,
strerror_r(errno, errbuf, sizeof(errbuf)));
}
break;
case ENOMEM:
rc = -1;
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: open(O_CREAT), error: %s",
turi,
strerror_r(errno, errbuf, sizeof(errbuf)));
goto out;
break;
default:
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: open(O_CREAT), error: %s",
turi,
strerror_r(errno, errbuf, sizeof(errbuf)));
rc = 1;
goto out;
break;
}
}
/* copy file */
for (;;) {
ctx->replica = srep;
bread = csync_vio_read(ctx, sfp, buf, MAX_XFER_BUF_SIZE);
if (bread < 0) {
/* read error */
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: read, error: %s",
suri,
strerror_r(errno, errbuf, sizeof(errbuf)));
rc = 1;
goto out;
} else if (bread == 0) {
/* done */
break;
}
ctx->replica = drep;
bwritten = csync_vio_write(ctx, dfp, buf, bread);
if (bwritten < 0 || bread != bwritten) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: write, error: bread = %zu, bwritten = %zu - %s",
duri,
bread,
bwritten,
strerror_r(errno, errbuf, sizeof(errbuf)));
rc = 1;
goto out;
}
}
ctx->replica = srep;
if (csync_vio_close(ctx, sfp) < 0) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: close, error: %s",
suri,
strerror_r(errno, errbuf, sizeof(errbuf)));
}
sfp = NULL;
ctx->replica = drep;
if (csync_vio_close(ctx, dfp) < 0) {
dfp = NULL;
switch (errno) {
/* stop if no space left or quota exceeded */
case ENOSPC:
case EDQUOT:
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: close, error: %s",
turi,
strerror_r(errno, errbuf, sizeof(errbuf)));
rc = -1;
goto out;
break;
default:
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: close, error: %s",
turi,
strerror_r(errno, errbuf, sizeof(errbuf)));
break;
}
}
dfp = NULL;
/*
* Check filesize
*/
ctx->replica = drep;
tstat = csync_vio_file_stat_new();
if (tstat == NULL) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: stat, error: %s",
turi,
strerror_r(errno, errbuf, sizeof(errbuf)));
rc = -1;
goto out;
}
if (csync_vio_stat(ctx, turi, tstat) < 0) {
switch (errno) {
case ENOMEM:
rc = -1;
break;
default:
rc = 1;
break;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: stat, error: %s",
turi,
strerror_r(errno, errbuf, sizeof(errbuf)));
goto out;
}
if (st->size != tstat->size) {
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, error: incorrect filesize (size: %jd should be %jd)",
turi, tstat->size, st->size);
rc = 1;
goto out;
}
/* override original file */
ctx->replica = drep;
if (csync_vio_rename(ctx, turi, duri) < 0) {
switch (errno) {
case ENOMEM:
rc = -1;
break;
default:
rc = 1;
break;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: rename, error: %s",
duri,
strerror_r(errno, errbuf, sizeof(errbuf)));
goto out;
}
/* set mode only if it is not the default mode */
if ((st->mode & 07777) != C_FILE_MODE) {
if (csync_vio_chmod(ctx, duri, st->mode) < 0) {
switch (errno) {
case ENOMEM:
rc = -1;
break;
default:
rc = 1;
break;
}
CSYNC_LOG(CSYNC_LOG_PRIORITY_ERROR,
"file: %s, command: chmod, error: %s",
duri,
strerror_r(errno, errbuf, sizeof(errbuf)));
goto out;
}
}
/* set owner and group if possible */
if (ctx->pwd.euid == 0) {
csync_vio_chown(ctx, duri, st->uid, st->gid);
}
/* sync time */
times[0].tv_sec = times[1].tv_sec = st->modtime;
times[0].tv_usec = times[1].tv_usec = 0;
ctx->replica = drep;
csync_vio_utimes(ctx, duri, times);
/* set instruction for the statedb merger */
st->instruction = CSYNC_INSTRUCTION_UPDATED;
CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "PUSHED file: %s", duri);
rc = 0;
out:
ctx->replica = srep;
csync_vio_close(ctx, sfp);
ctx->replica = drep;
csync_vio_close(ctx, dfp);
csync_vio_file_stat_destroy(tstat);
/* set instruction for the statedb merger */
if (rc != 0) {
st->instruction = CSYNC_INSTRUCTION_ERROR;
csync_vio_unlink(ctx, turi);
}
SAFE_FREE(suri);
SAFE_FREE(duri);
SAFE_FREE(turi);
SAFE_FREE(tdir);
ctx->replica = rep_bak;
return rc;
}
