diff options
Diffstat (limited to 'framework/src/suricata/src/output-json-smtp.c')
| -rw-r--r-- | framework/src/suricata/src/output-json-smtp.c | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/framework/src/suricata/src/output-json-smtp.c b/framework/src/suricata/src/output-json-smtp.c deleted file mode 100644 index 617b7247..00000000 --- a/framework/src/suricata/src/output-json-smtp.c +++ /dev/null @@ -1,296 +0,0 @@ -/* Copyright (C) 2007-2015 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 Tom DeCanio <td@npulsetech.com> - * - * Implements SMTP JSON logging portion of the engine. - */ - -#include "suricata-common.h" -#include "debug.h" -#include "detect.h" -#include "pkt-var.h" -#include "conf.h" - -#include "threads.h" -#include "threadvars.h" -#include "tm-threads.h" - -#include "util-print.h" -#include "util-unittest.h" - -#include "util-debug.h" - -#include "output.h" -#include "app-layer-smtp.h" -#include "app-layer.h" -#include "app-layer-parser.h" -#include "util-privs.h" -#include "util-buffer.h" -#include "util-proto-name.h" -#include "util-logopenfile.h" -#include "util-time.h" - -#include "output-json.h" -#include "output-json-email-common.h" - -#ifdef HAVE_LIBJANSSON -#include <jansson.h> - -static json_t *JsonSmtpDataLogger(const Flow *f, void *state, void *vtx, uint64_t tx_id) -{ - json_t *sjs = json_object(); - SMTPTransaction *tx = vtx; - SMTPString *rcptto_str; - if (sjs == NULL) { - return NULL; - } - if (((SMTPState *)state)->helo) { - json_object_set_new(sjs, "helo", - json_string((const char *)((SMTPState *)state)->helo)); - } - if (tx->mail_from) { - json_object_set_new(sjs, "mail_from", - json_string((const char *)tx->mail_from)); - } - if (!TAILQ_EMPTY(&tx->rcpt_to_list)) { - json_t *js_rcptto = json_array(); - if (likely(js_rcptto != NULL)) { - TAILQ_FOREACH(rcptto_str, &tx->rcpt_to_list, next) { - json_array_append_new(js_rcptto, json_string((char *)rcptto_str->str)); - } - json_object_set_new(sjs, "rcpt_to", js_rcptto); - } - } - - return sjs; -} - -static int JsonSmtpLogger(ThreadVars *tv, void *thread_data, const Packet *p, Flow *f, void *state, void *tx, uint64_t tx_id) -{ - SCEnter(); - JsonEmailLogThread *jhl = (JsonEmailLogThread *)thread_data; - MemBuffer *buffer = (MemBuffer *)jhl->buffer; - - json_t *sjs; - json_t *js = CreateJSONHeaderWithTxId((Packet *)p, 1, "smtp", tx_id); - if (unlikely(js == NULL)) - return TM_ECODE_OK; - - /* reset */ - MemBufferReset(buffer); - - sjs = JsonSmtpDataLogger(f, state, tx, tx_id); - if (sjs) { - json_object_set_new(js, "smtp", sjs); - } - - if (JsonEmailLogJson(jhl, js, p, f, state, tx, tx_id) == TM_ECODE_OK) { - OutputJSONBuffer(js, jhl->emaillog_ctx->file_ctx, buffer); - } - json_object_del(js, "email"); - if (sjs) { - json_object_del(js, "smtp"); - } - - json_object_clear(js); - json_decref(js); - - SCReturnInt(TM_ECODE_OK); - -} - -json_t *JsonSMTPAddMetadata(const Flow *f, uint64_t tx_id) -{ - SMTPState *smtp_state = (SMTPState *)FlowGetAppState(f); - if (smtp_state) { - SMTPTransaction *tx = AppLayerParserGetTx(IPPROTO_TCP, ALPROTO_SMTP, smtp_state, tx_id); - - if (tx) { - return JsonSmtpDataLogger(f, smtp_state, tx, tx_id); - } - } - - return NULL; -} - -static void OutputSmtpLogDeInitCtx(OutputCtx *output_ctx) -{ - OutputJsonEmailCtx *email_ctx = output_ctx->data; - if (email_ctx != NULL) { - LogFileFreeCtx(email_ctx->file_ctx); - SCFree(email_ctx); - } - SCFree(output_ctx); -} - -static void OutputSmtpLogDeInitCtxSub(OutputCtx *output_ctx) -{ - SCLogDebug("cleaning up sub output_ctx %p", output_ctx); - OutputJsonEmailCtx *email_ctx = output_ctx->data; - if (email_ctx != NULL) { - SCFree(email_ctx); - } - SCFree(output_ctx); -} - -#define DEFAULT_LOG_FILENAME "smtp.json" -OutputCtx *OutputSmtpLogInit(ConfNode *conf) -{ - LogFileCtx *file_ctx = LogFileNewCtx(); - if(file_ctx == NULL) { - SCLogError(SC_ERR_HTTP_LOG_GENERIC, "couldn't create new file_ctx"); - return NULL; - } - - if (SCConfLogOpenGeneric(conf, file_ctx, DEFAULT_LOG_FILENAME, 1) < 0) { - LogFileFreeCtx(file_ctx); - return NULL; - } - - OutputJsonEmailCtx *email_ctx = SCMalloc(sizeof(OutputJsonEmailCtx)); - if (unlikely(email_ctx == NULL)) { - LogFileFreeCtx(file_ctx); - return NULL; - } - - OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx)); - if (unlikely(output_ctx == NULL)) { - LogFileFreeCtx(file_ctx); - SCFree(email_ctx); - return NULL; - } - - email_ctx->file_ctx = file_ctx; - - output_ctx->data = email_ctx; - output_ctx->DeInit = OutputSmtpLogDeInitCtx; - - /* enable the logger for the app layer */ - AppLayerParserRegisterLogger(IPPROTO_TCP, ALPROTO_SMTP); - - return output_ctx; -} - -static OutputCtx *OutputSmtpLogInitSub(ConfNode *conf, OutputCtx *parent_ctx) -{ - OutputJsonCtx *ojc = parent_ctx->data; - - OutputJsonEmailCtx *email_ctx = SCMalloc(sizeof(OutputJsonEmailCtx)); - if (unlikely(email_ctx == NULL)) - return NULL; - - OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx)); - if (unlikely(output_ctx == NULL)) { - SCFree(email_ctx); - return NULL; - } - - email_ctx->file_ctx = ojc->file_ctx; - - OutputEmailInitConf(conf, email_ctx); - - output_ctx->data = email_ctx; - output_ctx->DeInit = OutputSmtpLogDeInitCtxSub; - - /* enable the logger for the app layer */ - AppLayerParserRegisterLogger(IPPROTO_TCP, ALPROTO_SMTP); - - return output_ctx; -} - -#define OUTPUT_BUFFER_SIZE 65535 -static TmEcode JsonSmtpLogThreadInit(ThreadVars *t, void *initdata, void **data) -{ - JsonEmailLogThread *aft = SCMalloc(sizeof(JsonEmailLogThread)); - if (unlikely(aft == NULL)) - return TM_ECODE_FAILED; - memset(aft, 0, sizeof(JsonEmailLogThread)); - - if(initdata == NULL) - { - SCLogDebug("Error getting context for SMTPLog. \"initdata\" argument NULL"); - SCFree(aft); - return TM_ECODE_FAILED; - } - - /* Use the Ouptut Context (file pointer and mutex) */ - aft->emaillog_ctx = ((OutputCtx *)initdata)->data; - - aft->buffer = MemBufferCreateNew(OUTPUT_BUFFER_SIZE); - if (aft->buffer == NULL) { - SCFree(aft); - return TM_ECODE_FAILED; - } - - *data = (void *)aft; - return TM_ECODE_OK; -} - -static TmEcode JsonSmtpLogThreadDeinit(ThreadVars *t, void *data) -{ - JsonEmailLogThread *aft = (JsonEmailLogThread *)data; - if (aft == NULL) { - return TM_ECODE_OK; - } - - MemBufferFree(aft->buffer); - /* clear memory */ - memset(aft, 0, sizeof(JsonEmailLogThread)); - - SCFree(aft); - return TM_ECODE_OK; -} - -void TmModuleJsonSmtpLogRegister (void) { - tmm_modules[TMM_JSONSMTPLOG].name = "JsonSmtpLog"; - tmm_modules[TMM_JSONSMTPLOG].ThreadInit = JsonSmtpLogThreadInit; - tmm_modules[TMM_JSONSMTPLOG].ThreadDeinit = JsonSmtpLogThreadDeinit; - tmm_modules[TMM_JSONSMTPLOG].RegisterTests = NULL; - tmm_modules[TMM_JSONSMTPLOG].cap_flags = 0; - tmm_modules[TMM_JSONSMTPLOG].flags = TM_FLAG_LOGAPI_TM; - - /* register as separate module */ - OutputRegisterTxModule("JsonSmtpLog", "smtp-json-log", - OutputSmtpLogInit, ALPROTO_SMTP, - JsonSmtpLogger); - - /* also register as child of eve-log */ - OutputRegisterTxSubModule("eve-log", "JsonSmtpLog", - "eve-log.smtp", - OutputSmtpLogInitSub, ALPROTO_SMTP, - JsonSmtpLogger); -} - -#else - -static TmEcode OutputJsonThreadInit(ThreadVars *t, void *initdata, void **data) -{ - SCLogInfo("Can't init JSON output - JSON support was disabled during build."); - return TM_ECODE_FAILED; -} - -void TmModuleJsonSmtpLogRegister (void) -{ - tmm_modules[TMM_JSONSMTPLOG].name = "JsonSmtpLog"; - tmm_modules[TMM_JSONSMTPLOG].ThreadInit = OutputJsonThreadInit; -} - -#endif |