--- /dev/null
+/* Copyright (C) 2007-2014 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Victor Julien <victor@inliniac.net>
+ *
+ * AppLayer File Logger Output registration functions
+ */
+
+#include "suricata-common.h"
+#include "tm-modules.h"
+#include "output-file.h"
+#include "app-layer.h"
+#include "app-layer-parser.h"
+#include "detect-filemagic.h"
+
+typedef struct OutputLoggerThreadStore_ {
+ void *thread_data;
+ struct OutputLoggerThreadStore_ *next;
+} OutputLoggerThreadStore;
+
+/** per thread data for this module, contains a list of per thread
+ * data for the packet loggers. */
+typedef struct OutputLoggerThreadData_ {
+ OutputLoggerThreadStore *store;
+} OutputLoggerThreadData;
+
+/* logger instance, a module + a output ctx,
+ * it's perfectly valid that have multiple instances of the same
+ * log module (e.g. http.log) with different output ctx'. */
+typedef struct OutputFileLogger_ {
+ FileLogger LogFunc;
+ OutputCtx *output_ctx;
+ struct OutputFileLogger_ *next;
+ const char *name;
+} OutputFileLogger;
+
+static OutputFileLogger *list = NULL;
+
+int OutputRegisterFileLogger(char *name, FileLogger LogFunc, OutputCtx *output_ctx) {
+ OutputFileLogger *op = SCMalloc(sizeof(*op));
+ if (op == NULL)
+ return -1;
+ memset(op, 0x00, sizeof(*op));
+
+ op->LogFunc = LogFunc;
+ op->output_ctx = output_ctx;
+ op->name = SCStrdup(name);
+ if (op->name == NULL) {
+ SCFree(op);
+ return -1;
+ }
+
+ if (list == NULL)
+ list = op;
+ else {
+ OutputFileLogger *t = list;
+ while (t->next)
+ t = t->next;
+ t->next = op;
+ }
+
+ SCLogDebug("OutputRegisterTxLogger happy");
+ return 0;
+}
+
+static TmEcode OutputFileLog(ThreadVars *tv, Packet *p, void *thread_data, PacketQueue *pq, PacketQueue *postpq) {
+ BUG_ON(thread_data == NULL);
+ BUG_ON(list == NULL);
+
+ OutputLoggerThreadData *op_thread_data = (OutputLoggerThreadData *)thread_data;
+ OutputFileLogger *logger = list;
+ OutputLoggerThreadStore *store = op_thread_data->store;
+
+ BUG_ON(logger == NULL && store != NULL);
+ BUG_ON(logger != NULL && store == NULL);
+ BUG_ON(logger == NULL && store == NULL);
+
+ uint8_t flags = 0;
+ Flow * const f = p->flow;
+
+ /* no flow, no files */
+ if (f == NULL) {
+ SCReturnInt(TM_ECODE_OK);
+ }
+
+ if (p->flowflags & FLOW_PKT_TOCLIENT)
+ flags |= STREAM_TOCLIENT;
+ else
+ flags |= STREAM_TOSERVER;
+
+ int file_close = (p->flags & PKT_PSEUDO_STREAM_END) ? 1 : 0;
+ int file_trunc = 0;
+
+ FLOWLOCK_WRLOCK(f); // < need write lock for FilePrune below
+ file_trunc = StreamTcpReassembleDepthReached(p);
+
+ FileContainer *ffc = AppLayerParserGetFiles(p->proto, f->alproto,
+ f->alstate, flags);
+ SCLogDebug("ffc %p", ffc);
+ if (ffc != NULL) {
+ File *ff;
+ for (ff = ffc->head; ff != NULL; ff = ff->next) {
+ if (ff->flags & FILE_LOGGED)
+ continue;
+
+ SCLogDebug("ff %p", ff);
+
+ if (file_trunc && ff->state < FILE_STATE_CLOSED)
+ ff->state = FILE_STATE_TRUNCATED;
+
+ if (file_close && ff->state < FILE_STATE_CLOSED)
+ ff->state = FILE_STATE_TRUNCATED;
+
+ if (ff->state == FILE_STATE_CLOSED ||
+ ff->state == FILE_STATE_TRUNCATED ||
+ ff->state == FILE_STATE_ERROR)
+ {
+ int file_logged = 0;
+
+ if (FileForceMagic() && ff->magic == NULL) {
+ FilemagicGlobalLookup(ff);
+ }
+
+ logger = list;
+ store = op_thread_data->store;
+ while (logger && store) {
+ BUG_ON(logger->LogFunc == NULL);
+
+ SCLogDebug("logger %p", logger);
+ logger->LogFunc(tv, store->thread_data, (const Packet *)p, (const File *)ff);
+ file_logged = 1;
+
+ logger = logger->next;
+ store = store->next;
+
+ BUG_ON(logger == NULL && store != NULL);
+ BUG_ON(logger != NULL && store == NULL);
+ }
+
+ if (file_logged) {
+ ff->flags |= FILE_LOGGED;
+ }
+ }
+ }
+
+ FilePrune(ffc);
+ }
+
+ FLOWLOCK_UNLOCK(f);
+ return TM_ECODE_OK;
+}
+
+/** \brief thread init for the tx logger
+ * This will run the thread init functions for the individual registered
+ * loggers */
+static TmEcode OutputFileLogThreadInit(ThreadVars *tv, void *initdata, void **data) {
+ OutputLoggerThreadData *td = SCMalloc(sizeof(*td));
+ if (td == NULL)
+ return TM_ECODE_FAILED;
+ memset(td, 0x00, sizeof(*td));
+
+ *data = (void *)td;
+
+ SCLogDebug("OutputFileLogThreadInit happy (*data %p)", *data);
+
+ OutputFileLogger *logger = list;
+ while (logger) {
+ TmModule *tm_module = TmModuleGetByName((char *)logger->name);
+ if (tm_module == NULL) {
+ SCLogError(SC_ERR_INVALID_ARGUMENT,
+ "TmModuleGetByName for %s failed", logger->name);
+ exit(EXIT_FAILURE);
+ }
+
+ if (tm_module->ThreadInit) {
+ void *retptr = NULL;
+ if (tm_module->ThreadInit(tv, (void *)logger->output_ctx, &retptr) == TM_ECODE_OK) {
+ OutputLoggerThreadStore *ts = SCMalloc(sizeof(*ts));
+/* todo */ BUG_ON(ts == NULL);
+ memset(ts, 0x00, sizeof(*ts));
+
+ /* store thread handle */
+ ts->thread_data = retptr;
+
+ if (td->store == NULL) {
+ td->store = ts;
+ } else {
+ OutputLoggerThreadStore *tmp = td->store;
+ while (tmp->next != NULL)
+ tmp = tmp->next;
+ tmp->next = ts;
+ }
+
+ SCLogDebug("%s is now set up", logger->name);
+ }
+ }
+
+ logger = logger->next;
+ }
+
+ return TM_ECODE_OK;
+}
+
+static TmEcode OutputFileLogThreadDeinit(ThreadVars *tv, void *thread_data) {
+ OutputLoggerThreadData *op_thread_data = (OutputLoggerThreadData *)thread_data;
+ OutputLoggerThreadStore *store = op_thread_data->store;
+ OutputFileLogger *logger = list;
+
+ while (logger && store) {
+ TmModule *tm_module = TmModuleGetByName((char *)logger->name);
+ if (tm_module == NULL) {
+ SCLogError(SC_ERR_INVALID_ARGUMENT,
+ "TmModuleGetByName for %s failed", logger->name);
+ exit(EXIT_FAILURE);
+ }
+
+ if (tm_module->ThreadDeinit) {
+ tm_module->ThreadDeinit(tv, store->thread_data);
+ }
+
+ logger = logger->next;
+ store = store->next;
+ }
+ return TM_ECODE_OK;
+}
+
+static void OutputFileLogExitPrintStats(ThreadVars *tv, void *thread_data) {
+ OutputLoggerThreadData *op_thread_data = (OutputLoggerThreadData *)thread_data;
+ OutputLoggerThreadStore *store = op_thread_data->store;
+ OutputFileLogger *logger = list;
+
+ while (logger && store) {
+ TmModule *tm_module = TmModuleGetByName((char *)logger->name);
+ if (tm_module == NULL) {
+ SCLogError(SC_ERR_INVALID_ARGUMENT,
+ "TmModuleGetByName for %s failed", logger->name);
+ exit(EXIT_FAILURE);
+ }
+
+ if (tm_module->ThreadExitPrintStats) {
+ tm_module->ThreadExitPrintStats(tv, store->thread_data);
+ }
+
+ logger = logger->next;
+ store = store->next;
+ }
+}
+
+void TmModuleFileLoggerRegister (void) {
+ tmm_modules[TMM_FILELOGGER].name = "__file_logger__";
+ tmm_modules[TMM_FILELOGGER].ThreadInit = OutputFileLogThreadInit;
+ tmm_modules[TMM_FILELOGGER].Func = OutputFileLog;
+ tmm_modules[TMM_FILELOGGER].ThreadExitPrintStats = OutputFileLogExitPrintStats;
+ tmm_modules[TMM_FILELOGGER].ThreadDeinit = OutputFileLogThreadDeinit;
+ tmm_modules[TMM_FILELOGGER].cap_flags = 0;
+}
--- /dev/null
+/* Copyright (C) 2007-2014 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Victor Julien <victor@inliniac.net>
+ *
+ * AppLayer File Logger Output registration functions
+ */
+
+#ifndef __OUTPUT_FILE_H__
+#define __OUTPUT_FILE_H__
+
+#include "decode.h"
+#include "util-file.h"
+
+/** packet logger function pointer type */
+typedef int (*FileLogger)(ThreadVars *, void *thread_data, const Packet *, const File *);
+
+/** packet logger condition function pointer type,
+ * must return true for packets that should be logged
+ */
+//typedef int (*TxLogCondition)(ThreadVars *, const Packet *);
+
+int OutputRegisterFileLogger(char *name, FileLogger LogFunc, OutputCtx *);
+
+void TmModuleFileLoggerRegister (void);
+
+#endif /* __OUTPUT_FILE_H__ */
projects / thirdparty / suricata.git / commitdiff
