static int FilePruneFile(File *file)
{
SCEnter();
SCLogDebug("file %p, file->chunks_cnt %"PRIu64, file, file->chunks_cnt);
if (!(file->flags & FILE_NOMAGIC)) {
/* need magic but haven't set it yet, bail out */
if (file->magic == NULL)
SCReturnInt(0);
else
SCLogDebug("file->magic %s", file->magic);
} else {
SCLogDebug("file->flags & FILE_NOMAGIC == true");
}
/* okay, we now know we can prune */
FileData *fd = file->chunks_head;
while (fd != NULL) {
SCLogDebug("fd %p", fd);
if (file->flags & FILE_NOSTORE || fd->stored == 1) {
file->chunks_head = fd->next;
if (file->chunks_tail == fd)
file->chunks_tail = fd->next;
FileDataFree(fd);
fd = file->chunks_head;
#ifdef DEBUG
file->chunks_cnt--;
SCLogDebug("file->chunks_cnt %"PRIu64, file->chunks_cnt);
#endif
} else if (fd->stored == 0) {
fd = NULL;
SCReturnInt(0);
break;
}
}
/* file is done when state is closed+, logging/storing is done (if any) */
if (file->state >= FILE_STATE_CLOSED &&
(!RunModeOutputFileEnabled() || (file->flags & FILE_LOGGED)) &&
(!RunModeOutputFiledataEnabled() || (file->flags & FILE_STORED)))
{
SCReturnInt(1);
} else {
SCReturnInt(0);
}
}
static int FilePruneFile(File *file)
{
SCEnter();
SCLogDebug("file %p, file->chunks_cnt %"PRIu64, file, file->chunks_cnt);
if (!(file->flags & FILE_NOMAGIC)) {
/* need magic but haven't set it yet, bail out */
if (file->magic == NULL)
SCReturnInt(0);
else
SCLogDebug("file->magic %s", file->magic);
} else {
SCLogDebug("file->flags & FILE_NOMAGIC == true");
}
/* okay, we now know we can prune */
FileData *fd = file->chunks_head;
while (fd != NULL) {
SCLogDebug("fd %p", fd);
if (file->flags & FILE_NOSTORE || fd->stored == 1) {
/* keep chunks in memory as long as we still need to
* inspect them or parts of them */
if (file->flags & FILE_USE_DETECT) {
uint64_t right_edge = fd->stream_offset + fd->len;
if (file->content_inspected < right_edge)
break;
}
file->chunks_head = fd->next;
if (file->chunks_tail == fd)
file->chunks_tail = fd->next;
FileDataFree(fd);
fd = file->chunks_head;
#ifdef DEBUG
file->chunks_cnt--;
SCLogDebug("file->chunks_cnt %"PRIu64, file->chunks_cnt);
#endif
} else if (fd->stored == 0) {
fd = NULL;
SCReturnInt(0);
break;
}
}
SCLogDebug("file->state %d. Is >= FILE_STATE_CLOSED: %s", file->state, (file->state >= FILE_STATE_CLOSED) ? "yes" : "no");
/* file is done when state is closed+, logging/storing is done (if any) */
if (file->state >= FILE_STATE_CLOSED &&
(!RunModeOutputFileEnabled() || (file->flags & FILE_LOGGED)) &&
(!RunModeOutputFiledataEnabled() || (file->flags & FILE_STORED)))
{
SCReturnInt(1);
} else {
SCReturnInt(0);
}
}
/** \brief Create a new http log LogFilestoreCtx.
* \param conf Pointer to ConfNode containing this loggers configuration.
* \return NULL if failure, LogFilestoreCtx* to the file_ctx if succesful
* */
static OutputInitResult LogFilestoreLogInitCtx(ConfNode *conf)
{
OutputInitResult result = { NULL, false };
intmax_t version = 0;
if (ConfGetChildValueInt(conf, "version", &version)) {
if (version > 1) {
result.ok = true;
return result;
}
}
if (RunModeOutputFiledataEnabled()) {
SCLogWarning(SC_ERR_NOT_SUPPORTED,
"A file data logger is already enabled. Filestore (v1) "
"will not be enabled.");
return result;
}
OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
if (unlikely(output_ctx == NULL))
return result;
output_ctx->data = NULL;
output_ctx->DeInit = LogFilestoreLogDeInitCtx;
const char *s_default_log_dir = NULL;
s_default_log_dir = ConfigGetLogDirectory();
const char *s_base_dir = NULL;
s_base_dir = ConfNodeLookupChildValue(conf, "log-dir");
if (s_base_dir == NULL || strlen(s_base_dir) == 0) {
strlcpy(g_logfile_base_dir,
s_default_log_dir, sizeof(g_logfile_base_dir));
} else {
if (PathIsAbsolute(s_base_dir)) {
strlcpy(g_logfile_base_dir,
s_base_dir, sizeof(g_logfile_base_dir));
} else {
snprintf(g_logfile_base_dir, sizeof(g_logfile_base_dir),
"%s/%s", s_default_log_dir, s_base_dir);
}
}
const char *force_filestore = ConfNodeLookupChildValue(conf, "force-filestore");
if (force_filestore != NULL && ConfValIsTrue(force_filestore)) {
FileForceFilestoreEnable();
SCLogInfo("forcing filestore of all files");
}
const char *force_magic = ConfNodeLookupChildValue(conf, "force-magic");
if (force_magic != NULL && ConfValIsTrue(force_magic)) {
FileForceMagicEnable();
SCLogInfo("forcing magic lookup for stored files");
}
const char *write_meta = ConfNodeLookupChildValue(conf, "write-meta");
if (write_meta != NULL && !ConfValIsTrue(write_meta)) {
FileWriteMetaDisable();
SCLogInfo("File-store output will not write meta files");
}
FileForceHashParseCfg(conf);
SCLogInfo("storing files in %s", g_logfile_base_dir);
const char *stream_depth_str = ConfNodeLookupChildValue(conf, "stream-depth");
if (stream_depth_str != NULL && strcmp(stream_depth_str, "no")) {
uint32_t stream_depth = 0;
if (ParseSizeStringU32(stream_depth_str,
&stream_depth) < 0) {
SCLogError(SC_ERR_SIZE_PARSE, "Error parsing "
"file-store.stream-depth "
"from conf file - %s. Killing engine",
stream_depth_str);
exit(EXIT_FAILURE);
} else {
FileReassemblyDepthEnable(stream_depth);
}
}
const char *file_count_str = ConfNodeLookupChildValue(conf, "max-open-files");
if (file_count_str != NULL) {
uint32_t file_count = 0;
if (ParseSizeStringU32(file_count_str,
&file_count) < 0) {
SCLogError(SC_ERR_SIZE_PARSE, "Error parsing "
"file-store.max-open-files "
"from conf file - %s. Killing engine",
stream_depth_str);
exit(EXIT_FAILURE);
} else {
if (file_count != 0) {
FileSetMaxOpenFiles(file_count);
SCLogInfo("file-store will keep a max of %d simultaneously"
" open files", file_count);
}
}
}
const char *include_pid = ConfNodeLookupChildValue(conf, "include-pid");
if (include_pid != NULL && ConfValIsTrue(include_pid)) {
FileIncludePidEnable();
SCLogInfo("enabling pid as a part of all file names");
}
StatsRegisterGlobalCounter("file_store.open_files",
LogFilestoreOpenFilesCounter);
result.ctx = output_ctx;
result.ok = true;
SCReturnCT(result, "OutputInitResult");
}