Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 313 insertions, 0 deletions

diff --git a/src/log-tcp-data.c b/src/log-tcp-data.c
new file mode 100644
index 0000000..538cfc9
--- /dev/null
+++ b/src/log-tcp-data.c
@@ -0,0 +1,313 @@
+/* Copyright (C) 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>
+ */
+
+#include "suricata-common.h"
+#include "log-tcp-data.h"
+
+#include "threadvars.h"
+
+#include "util-conf.h"
+#include "util-logopenfile.h"
+#include "util-path.h"
+#include "util-print.h"
+
+#define DEFAULT_LOG_FILENAME "tcp-data.log"
+
+#define MODULE_NAME "LogTcpDataLog"
+
+#define OUTPUT_BUFFER_SIZE 65535
+
+TmEcode LogTcpDataLogThreadInit(ThreadVars *, const void *, void **);
+TmEcode LogTcpDataLogThreadDeinit(ThreadVars *, void *);
+static void LogTcpDataLogDeInitCtx(OutputCtx *);
+
+int LogTcpDataLogger(ThreadVars *tv, void *thread_data, const Flow *f, const uint8_t *data, uint32_t data_len, uint64_t tx_id, uint8_t flags);
+
+void LogTcpDataLogRegister (void) {
+    OutputRegisterStreamingModule(LOGGER_TCP_DATA, MODULE_NAME, "tcp-data",
+        LogTcpDataLogInitCtx, LogTcpDataLogger, STREAMING_TCP_DATA,
+        LogTcpDataLogThreadInit, LogTcpDataLogThreadDeinit, NULL);
+    OutputRegisterStreamingModule(LOGGER_TCP_DATA, MODULE_NAME, "http-body-data",
+        LogTcpDataLogInitCtx, LogTcpDataLogger, STREAMING_HTTP_BODIES,
+        LogTcpDataLogThreadInit, LogTcpDataLogThreadDeinit, NULL);
+}
+
+typedef struct LogTcpDataFileCtx_ {
+    LogFileCtx *file_ctx;
+    enum OutputStreamingType type;
+    const char *log_dir;
+    int file;
+    int dir;
+} LogTcpDataFileCtx;
+
+typedef struct LogTcpDataLogThread_ {
+    LogTcpDataFileCtx *tcpdatalog_ctx;
+    /** LogFileCtx has the pointer to the file and a mutex to allow multithreading */
+    MemBuffer *buffer;
+} LogTcpDataLogThread;
+
+static int LogTcpDataLoggerDir(ThreadVars *tv, void *thread_data, const Flow *f,
+        const uint8_t *data, uint32_t data_len, uint64_t tx_id, uint8_t flags)
+{
+    SCEnter();
+    LogTcpDataLogThread *aft = thread_data;
+    LogTcpDataFileCtx *td = aft->tcpdatalog_ctx;
+    const char *mode = "a";
+
+    if (flags & OUTPUT_STREAMING_FLAG_OPEN)
+        mode = "w";
+
+    if (data && data_len) {
+        char srcip[46] = "", dstip[46] = "";
+        if (FLOW_IS_IPV4(f)) {
+            PrintInet(AF_INET, (const void *)&f->src.addr_data32[0], srcip, sizeof(srcip));
+            PrintInet(AF_INET, (const void *)&f->dst.addr_data32[0], dstip, sizeof(dstip));
+        } else if (FLOW_IS_IPV6(f)) {
+            PrintInet(AF_INET6, (const void *)f->src.addr_data32, srcip, sizeof(srcip));
+            PrintInet(AF_INET6, (const void *)f->dst.addr_data32, dstip, sizeof(dstip));
+        }
+
+        char name[PATH_MAX];
+
+        char tx[64] = { 0 };
+        if (flags & OUTPUT_STREAMING_FLAG_TRANSACTION) {
+            snprintf(tx, sizeof(tx), "%"PRIu64, tx_id);
+        }
+
+        snprintf(name, sizeof(name), "%s/%s/%s_%u-%s_%u-%s-%s.data",
+                td->log_dir,
+                td->type == STREAMING_HTTP_BODIES ? "http" : "tcp",
+                srcip, f->sp, dstip, f->dp, tx,
+                flags & OUTPUT_STREAMING_FLAG_TOSERVER ? "ts" : "tc");
+
+        FILE *fp = fopen(name, mode);
+        BUG_ON(fp == NULL);
+
+        // PrintRawDataFp(stdout, (uint8_t *)data, data_len);
+        fwrite(data, data_len, 1, fp);
+
+        fclose(fp);
+    }
+    SCReturnInt(TM_ECODE_OK);
+}
+
+static int LogTcpDataLoggerFile(ThreadVars *tv, void *thread_data, const Flow *f,
+        const uint8_t *data, uint32_t data_len, uint64_t tx_id, uint8_t flags)
+{
+    SCEnter();
+    LogTcpDataLogThread *aft = thread_data;
+    LogTcpDataFileCtx *td = aft->tcpdatalog_ctx;
+
+    if (data && data_len) {
+        MemBufferReset(aft->buffer);
+
+        char srcip[46] = "", dstip[46] = "";
+        if (FLOW_IS_IPV4(f)) {
+            PrintInet(AF_INET, (const void *)&f->src.addr_data32[0], srcip, sizeof(srcip));
+            PrintInet(AF_INET, (const void *)&f->dst.addr_data32[0], dstip, sizeof(dstip));
+        } else if (FLOW_IS_IPV6(f)) {
+            PrintInet(AF_INET6, (const void *)f->src.addr_data32, srcip, sizeof(srcip));
+            PrintInet(AF_INET6, (const void *)f->dst.addr_data32, dstip, sizeof(dstip));
+        }
+
+        char name[PATH_MAX];
+        snprintf(name, sizeof(name), "%s_%u-%s_%u-%s:",
+                srcip, f->sp, dstip, f->dp,
+                flags & OUTPUT_STREAMING_FLAG_TOSERVER ? "ts" : "tc");
+
+        PrintRawUriBuf((char *)aft->buffer->buffer, &aft->buffer->offset,
+                aft->buffer->size, (uint8_t *)name,strlen(name));
+        MemBufferWriteString(aft->buffer, "\n");
+
+        PrintRawDataToBuffer(aft->buffer->buffer, &aft->buffer->offset,
+                aft->buffer->size, (uint8_t *)data,data_len);
+
+        td->file_ctx->Write((const char *)MEMBUFFER_BUFFER(aft->buffer),
+                MEMBUFFER_OFFSET(aft->buffer), td->file_ctx);
+    }
+    SCReturnInt(TM_ECODE_OK);
+}
+
+int LogTcpDataLogger(ThreadVars *tv, void *thread_data, const Flow *f,
+        const uint8_t *data, uint32_t data_len, uint64_t tx_id, uint8_t flags)
+{
+    SCEnter();
+    LogTcpDataLogThread *aft = thread_data;
+    LogTcpDataFileCtx *td = aft->tcpdatalog_ctx;
+
+    if (td->dir == 1)
+        LogTcpDataLoggerDir(tv, thread_data, f, data, data_len, tx_id, flags);
+    if (td->file == 1)
+        LogTcpDataLoggerFile(tv, thread_data, f, data, data_len, tx_id, flags);
+
+    SCReturnInt(TM_ECODE_OK);
+}
+
+TmEcode LogTcpDataLogThreadInit(ThreadVars *t, const void *initdata, void **data)
+{
+    LogTcpDataLogThread *aft = SCMalloc(sizeof(LogTcpDataLogThread));
+    if (unlikely(aft == NULL))
+        return TM_ECODE_FAILED;
+    memset(aft, 0, sizeof(LogTcpDataLogThread));
+
+    if(initdata == NULL)
+    {
+        SCLogDebug("Error getting context. \"initdata\" argument NULL");
+        SCFree(aft);
+        return TM_ECODE_FAILED;
+    }
+
+    aft->buffer = MemBufferCreateNew(OUTPUT_BUFFER_SIZE);
+    if (aft->buffer == NULL) {
+        SCFree(aft);
+        return TM_ECODE_FAILED;
+    }
+
+    /* Use the Output Context (file pointer and mutex) */
+    aft->tcpdatalog_ctx= ((OutputCtx *)initdata)->data;
+
+    *data = (void *)aft;
+    return TM_ECODE_OK;
+}
+
+TmEcode LogTcpDataLogThreadDeinit(ThreadVars *t, void *data)
+{
+    LogTcpDataLogThread *aft = (LogTcpDataLogThread *)data;
+    if (aft == NULL) {
+        return TM_ECODE_OK;
+    }
+
+    MemBufferFree(aft->buffer);
+    /* clear memory */
+    memset(aft, 0, sizeof(LogTcpDataLogThread));
+
+    SCFree(aft);
+    return TM_ECODE_OK;
+}
+
+/** \brief Create a new http log LogFileCtx.
+ *  \param conf Pointer to ConfNode containing this loggers configuration.
+ *  \return NULL if failure, LogFileCtx* to the file_ctx if succesful
+ * */
+OutputInitResult LogTcpDataLogInitCtx(ConfNode *conf)
+{
+    OutputInitResult result = { NULL, false };
+    char filename[PATH_MAX] = "";
+    char dirname[32] = "";
+    strlcpy(filename, DEFAULT_LOG_FILENAME, sizeof(filename));
+
+    LogFileCtx *file_ctx = LogFileNewCtx();
+    if(file_ctx == NULL) {
+        SCLogError("couldn't create new file_ctx");
+        return result;
+    }
+
+    LogTcpDataFileCtx *tcpdatalog_ctx = SCMalloc(sizeof(LogTcpDataFileCtx));
+    if (unlikely(tcpdatalog_ctx == NULL)) {
+        LogFileFreeCtx(file_ctx);
+        return result;
+    }
+    memset(tcpdatalog_ctx, 0x00, sizeof(LogTcpDataFileCtx));
+
+    tcpdatalog_ctx->file_ctx = file_ctx;
+
+    if (conf) {
+        if (conf->name) {
+            if (strcmp(conf->name, "tcp-data") == 0) {
+                tcpdatalog_ctx->type = STREAMING_TCP_DATA;
+                snprintf(filename, sizeof(filename), "%s.log", conf->name);
+                strlcpy(dirname, "tcp", sizeof(dirname));
+            } else if (strcmp(conf->name, "http-body-data") == 0) {
+                tcpdatalog_ctx->type = STREAMING_HTTP_BODIES;
+                snprintf(filename, sizeof(filename), "%s.log", conf->name);
+                strlcpy(dirname, "http", sizeof(dirname));
+            }
+        }
+
+        const char *logtype = ConfNodeLookupChildValue(conf, "type");
+        if (logtype == NULL)
+            logtype = "file";
+
+        if (strcmp(logtype, "file") == 0) {
+            tcpdatalog_ctx->file = 1;
+        } else if (strcmp(logtype, "dir") == 0) {
+            tcpdatalog_ctx->dir = 1;
+        } else if (strcmp(logtype, "both") == 0) {
+            tcpdatalog_ctx->file = 1;
+            tcpdatalog_ctx->dir = 1;
+        }
+    } else {
+        tcpdatalog_ctx->file = 1;
+        tcpdatalog_ctx->dir = 0;
+    }
+
+    if (tcpdatalog_ctx->file == 1) {
+        SCLogInfo("opening logfile");
+        if (SCConfLogOpenGeneric(conf, file_ctx, filename, 1) < 0) {
+            LogFileFreeCtx(file_ctx);
+            SCFree(tcpdatalog_ctx);
+            return result;
+        }
+    }
+
+    if (tcpdatalog_ctx->dir == 1) {
+        tcpdatalog_ctx->log_dir = ConfigGetLogDirectory();
+        char dirfull[PATH_MAX];
+
+        /* create the filename to use */
+        snprintf(dirfull, PATH_MAX, "%s/%s", tcpdatalog_ctx->log_dir, dirname);
+
+        SCLogInfo("using directory %s", dirfull);
+
+        /* if mkdir fails file open will fail, so deal with errors there */
+        (void)SCMkDir(dirfull, 0700);
+    }
+
+    OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
+    if (unlikely(output_ctx == NULL)) {
+        goto parsererror;
+    }
+
+    output_ctx->data = tcpdatalog_ctx;
+    output_ctx->DeInit = LogTcpDataLogDeInitCtx;
+
+    SCLogDebug("Streaming log output initialized");
+    result.ctx = output_ctx;
+    result.ok = true;
+    return result;
+
+parsererror:
+    LogFileFreeCtx(file_ctx);
+    SCFree(tcpdatalog_ctx);
+    SCLogError("Syntax error in custom http log format string.");
+    return result;
+
+}
+
+static void LogTcpDataLogDeInitCtx(OutputCtx *output_ctx)
+{
+    LogTcpDataFileCtx *tcpdatalog_ctx = (LogTcpDataFileCtx *)output_ctx->data;
+    LogFileFreeCtx(tcpdatalog_ctx->file_ctx);
+    SCFree(tcpdatalog_ctx);
+    SCFree(output_ctx);
+}