--- /dev/null
+/* 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 "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-htp.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"
+
+#ifdef HAVE_LUA
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+
+extern const char lualog_ext_key_tx;
+
+static void *LuaStateGetTX(lua_State *luastate)
+{
+ lua_pushlightuserdata(luastate, (void *)&lualog_ext_key_tx);
+ lua_gettable(luastate, LUA_REGISTRYINDEX);
+ void *tx = lua_touserdata(luastate, -1);
+ return tx;
+}
+
+static int LuaCallbackError(lua_State *luastate, const char *msg)
+{
+ lua_pushnil(luastate);
+ lua_pushstring(luastate, msg);
+ return 2;
+}
+
+static int LuaReturnStringBuffer(lua_State *luastate, uint8_t *input, size_t input_len)
+{
+ /* we're using a buffer sized at a multiple of 4 as lua_pushlstring generates
+ * invalid read errors in valgrind otherwise. Adding in a nul to be sure.
+ *
+ * Buffer size = len + 1 (for nul) + whatever makes it a multiple of 4 */
+ size_t buflen = input_len + 1 + ((input_len + 1) % 4);
+ uint8_t buf[buflen];
+ memset(buf, 0x00, buflen);
+ memcpy(buf, input, input_len);
+ buf[input_len] = '\0';
+
+ /* return value through luastate, as a luastring */
+ lua_pushlstring(luastate, (char *)buf, input_len);
+ return 1;
+}
+
+const char *LuaGetStringArgument(lua_State *luastate, int argc)
+{
+ /* get argument */
+ if (!lua_isstring(luastate, argc))
+ return NULL;
+ const char *str = lua_tostring(luastate, 1);
+ if (str == NULL)
+ return NULL;
+ if (strlen(str) == 0)
+ return NULL;
+ return str;
+}
+
+static int HttpGetRequestUriRaw(lua_State *luastate)
+{
+ htp_tx_t *tx = LuaStateGetTX(luastate);
+ if (tx == NULL)
+ return LuaCallbackError(luastate, "internal error: no tx");
+
+ return LuaReturnStringBuffer(luastate,
+ bstr_ptr(tx->request_uri), bstr_len(tx->request_uri));
+}
+
+static int HttpGetRequestUriNormalized(lua_State *luastate)
+{
+ htp_tx_t *tx = LuaStateGetTX(luastate);
+ if (tx == NULL)
+ return LuaCallbackError(luastate, "internal error: no tx");
+
+ HtpTxUserData *htud = (HtpTxUserData *) htp_tx_get_user_data(tx);
+ if (htud == NULL)
+ return LuaCallbackError(luastate, "no htud in tx");
+
+ if (htud->request_uri_normalized == NULL ||
+ bstr_ptr(htud->request_uri_normalized) == NULL ||
+ bstr_len(htud->request_uri_normalized) == 0)
+ return LuaCallbackError(luastate, "no normalized uri");
+
+ return LuaReturnStringBuffer(luastate,
+ bstr_ptr(htud->request_uri_normalized),
+ bstr_len(htud->request_uri_normalized));
+}
+
+static int HttpGetRequestLine(lua_State *luastate)
+{
+ htp_tx_t *tx = LuaStateGetTX(luastate);
+ if (tx == NULL)
+ return LuaCallbackError(luastate, "internal error: no tx");
+
+ if (tx->request_line == NULL)
+ return LuaCallbackError(luastate, "no request_line");
+
+ return LuaReturnStringBuffer(luastate,
+ bstr_ptr(tx->request_line), bstr_len(tx->request_line));
+}
+
+static int HttpGetResponseLine(lua_State *luastate)
+{
+ htp_tx_t *tx = LuaStateGetTX(luastate);
+ if (tx == NULL)
+ return LuaCallbackError(luastate, "internal error: no tx");
+
+ if (tx->response_line == NULL)
+ return LuaCallbackError(luastate, "no response_line");
+
+ return LuaReturnStringBuffer(luastate,
+ bstr_ptr(tx->response_line), bstr_len(tx->response_line));
+}
+
+static int HttpGetHeader(lua_State *luastate, int dir)
+{
+ htp_tx_t *tx = LuaStateGetTX(luastate);
+ if (tx == NULL)
+ return LuaCallbackError(luastate, "internal error: no tx");
+
+ const char *name = LuaGetStringArgument(luastate, 1);
+ if (name == NULL)
+ return LuaCallbackError(luastate, "1st argument missing, empty or wrong type");
+
+ htp_table_t *headers = tx->request_headers;
+ if (dir == 1)
+ headers = tx->response_headers;
+ if (headers == NULL)
+ return LuaCallbackError(luastate, "tx has no headers");
+
+ htp_header_t *h = (htp_header_t *)htp_table_get_c(headers, name);
+ if (h == NULL || bstr_len(h->value) == 0)
+ return LuaCallbackError(luastate, "header not found");
+
+ return LuaReturnStringBuffer(luastate,
+ bstr_ptr(h->value), bstr_len(h->value));
+}
+
+static int HttpGetRequestHeader(lua_State *luastate)
+{
+ return HttpGetHeader(luastate, 0 /* request */);
+}
+
+static int HttpGetResponseHeader(lua_State *luastate)
+{
+ return HttpGetHeader(luastate, 1 /* response */);
+}
+
+static int HttpGetRawHeaders(lua_State *luastate, int dir)
+{
+ htp_tx_t *tx = LuaStateGetTX(luastate);
+ if (tx == NULL)
+ return LuaCallbackError(luastate, "internal error: no tx");
+
+ HtpTxUserData *htud = (HtpTxUserData *) htp_tx_get_user_data(tx);
+ if (htud == NULL)
+ return LuaCallbackError(luastate, "no htud in tx");
+
+ uint8_t *raw = htud->request_headers_raw;
+ uint32_t raw_len = htud->request_headers_raw_len;
+ if (dir == 1) {
+ raw = htud->response_headers_raw;
+ raw_len = htud->response_headers_raw_len;
+ }
+
+ if (raw == NULL || raw_len == 0)
+ return LuaCallbackError(luastate, "no raw headers");
+
+ return LuaReturnStringBuffer(luastate, raw, raw_len);
+}
+
+static int HttpGetRawRequestHeaders(lua_State *luastate)
+{
+ return HttpGetRawHeaders(luastate, 0);
+}
+
+static int HttpGetRawResponseHeaders(lua_State *luastate)
+{
+ return HttpGetRawHeaders(luastate, 1);
+}
+
+
+static int HttpGetHeaders(lua_State *luastate, int dir)
+{
+ htp_tx_t *tx = LuaStateGetTX(luastate);
+ if (tx == NULL)
+ return LuaCallbackError(luastate, "internal error: no tx");
+
+ htp_table_t *table = tx->request_headers;
+ if (dir == 1)
+ table = tx->response_headers;
+ if (tx->request_headers == NULL)
+ return LuaCallbackError(luastate, "no headers");
+
+ lua_newtable(luastate);
+ htp_header_t *h = NULL;
+ size_t i = 0;
+ size_t no_of_headers = htp_table_size(table);
+ for (; i < no_of_headers; i++) {
+ h = htp_table_get_index(table, i, NULL);
+ LuaReturnStringBuffer(luastate, bstr_ptr(h->name), bstr_len(h->name));
+ LuaReturnStringBuffer(luastate, bstr_ptr(h->value), bstr_len(h->value));
+ lua_settable(luastate, -3);
+ }
+ return 1;
+}
+
+/** \brief return request headers as lua table */
+static int HttpGetRequestHeaders(lua_State *luastate)
+{
+ return HttpGetHeaders(luastate, 0);
+}
+
+/** \brief return response headers as lua table */
+static int HttpGetResponseHeaders(lua_State *luastate)
+{
+ return HttpGetHeaders(luastate, 1);
+}
+
+/** \brief register http lua extensions in a luastate */
+int LogLuaRegisterHttpFunctions(lua_State *luastate)
+{
+ /* registration of the callbacks */
+ lua_pushcfunction(luastate, HttpGetRequestHeader);
+ lua_setglobal(luastate, "HttpGetRequestHeader");
+ lua_pushcfunction(luastate, HttpGetResponseHeader);
+ lua_setglobal(luastate, "HttpGetResponseHeader");
+ lua_pushcfunction(luastate, HttpGetRequestLine);
+ lua_setglobal(luastate, "HttpGetRequestLine");
+ lua_pushcfunction(luastate, HttpGetResponseLine);
+ lua_setglobal(luastate, "HttpGetResponseLine");
+ lua_pushcfunction(luastate, HttpGetRawRequestHeaders);
+ lua_setglobal(luastate, "HttpGetRawRequestHeaders");
+ lua_pushcfunction(luastate, HttpGetRawResponseHeaders);
+ lua_setglobal(luastate, "HttpGetRawResponseHeaders");
+ lua_pushcfunction(luastate, HttpGetRequestUriRaw);
+ lua_setglobal(luastate, "HttpGetRequestUriRaw");
+ lua_pushcfunction(luastate, HttpGetRequestUriNormalized);
+ lua_setglobal(luastate, "HttpGetRequestUriNormalized");
+ lua_pushcfunction(luastate, HttpGetRequestHeaders);
+ lua_setglobal(luastate, "HttpGetRequestHeaders");
+ lua_pushcfunction(luastate, HttpGetResponseHeaders);
+ lua_setglobal(luastate, "HttpGetResponseHeaders");
+ return 0;
+}
+
+#endif /* HAVE_LUA */
--- /dev/null
+/* 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 "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-htp.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"
+
+#ifdef HAVE_LUA
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+
+#include "output-lua-http.h"
+
+#define MODULE_NAME "LuaLog"
+
+typedef struct LogLuaCtx_ {
+ SCMutex m;
+ lua_State *luastate;
+ int deinit_once;
+} LogLuaCtx;
+
+typedef struct LogLuaThreadCtx_ {
+ LogLuaCtx *lua_ctx;
+} LogLuaThreadCtx;
+
+const char lualog_ext_key_tx[] = "suricata:lualog:tx:ptr";
+
+static int LuaTxLogger(ThreadVars *tv, void *thread_data, const Packet *p, Flow *f, void *alstate, void *txptr, uint64_t tx_id)
+{
+ SCEnter();
+
+ LogLuaThreadCtx *td = (LogLuaThreadCtx *)thread_data;
+
+ SCMutexLock(&td->lua_ctx->m);
+
+ /* we need the tx in our callbacks */
+ lua_pushlightuserdata(td->lua_ctx->luastate, (void *)&lualog_ext_key_tx);
+ lua_pushlightuserdata(td->lua_ctx->luastate, (void *)txptr);
+ lua_settable(td->lua_ctx->luastate, LUA_REGISTRYINDEX);
+
+ /* prepare data to pass to script */
+ lua_getglobal(td->lua_ctx->luastate, "log");
+ lua_newtable(td->lua_ctx->luastate); /* stack at -1 */
+ lua_pushliteral (td->lua_ctx->luastate, "tx_id"); /* stack at -2 */
+ lua_pushnumber (td->lua_ctx->luastate, (int)(tx_id));
+ lua_settable(td->lua_ctx->luastate, -3);
+
+ int retval = lua_pcall(td->lua_ctx->luastate, 1, 0, 0);
+ if (retval != 0) {
+ SCLogInfo("failed to run script: %s", lua_tostring(td->lua_ctx->luastate, -1));
+ }
+
+ SCMutexUnlock(&td->lua_ctx->m);
+ SCReturnInt(0);
+}
+
+/** \brief dump stack from lua state to screen */
+void LuaPrintStack(lua_State *state) {
+ int size = lua_gettop(state);
+ int i;
+
+ for (i = 1; i <= size; i++) {
+ int type = lua_type(state, i);
+ printf("Stack size=%d, level=%d, type=%d, ", size, i, type);
+
+ switch (type) {
+ case LUA_TFUNCTION:
+ printf("function %s", lua_tostring(state, i) ? "true" : "false");
+ break;
+ case LUA_TBOOLEAN:
+ printf("bool %s", lua_toboolean(state, i) ? "true" : "false");
+ break;
+ case LUA_TNUMBER:
+ printf("number %g", lua_tonumber(state, i));
+ break;
+ case LUA_TSTRING:
+ printf("string `%s'", lua_tostring(state, i));
+ break;
+ case LUA_TTABLE:
+ printf("table `%s'", lua_tostring(state, i));
+ break;
+ default:
+ printf("other %s", lua_typename(state, type));
+ break;
+
+ }
+ printf("\n");
+ }
+}
+
+/** \brief load and evaluate the script
+ *
+ * This function parses the script, checks if all the required functions
+ * are defined and runs the 'init' function. The init function will inform
+ * us what the scripts needs are.
+ */
+static int LuaScriptInit(const char *filename) {
+ int status;
+// AppProto alproto = ALPROTO_UNKNOWN;
+
+ lua_State *luastate = luaL_newstate();
+ if (luastate == NULL)
+ goto error;
+ luaL_openlibs(luastate);
+
+ /* hackish, needed to allow unittests to pass buffers as scripts instead of files */
+#if 0//def UNITTESTS
+ if (ut_script != NULL) {
+ status = luaL_loadbuffer(luastate, ut_script, strlen(ut_script), "unittest");
+ if (status) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't load file: %s", lua_tostring(luastate, -1));
+ goto error;
+ }
+ } else {
+#endif
+ status = luaL_loadfile(luastate, filename);
+ if (status) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't load file: %s", lua_tostring(luastate, -1));
+ goto error;
+ }
+#if 0//def UNITTESTS
+ }
+#endif
+
+ /* prime the script (or something) */
+ if (lua_pcall(luastate, 0, 0, 0) != 0) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't prime file: %s", lua_tostring(luastate, -1));
+ goto error;
+ }
+
+ lua_getglobal(luastate, "init");
+ if (lua_type(luastate, -1) != LUA_TFUNCTION) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "no init function in script");
+ goto error;
+ }
+
+ lua_newtable(luastate); /* stack at -1 */
+ if (lua_gettop(luastate) == 0 || lua_type(luastate, 2) != LUA_TTABLE) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "no table setup");
+ goto error;
+ }
+
+ lua_pushliteral(luastate, "script_api_ver"); /* stack at -2 */
+ lua_pushnumber (luastate, 1); /* stack at -3 */
+ lua_settable(luastate, -3);
+
+ if (lua_pcall(luastate, 1, 1, 0) != 0) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't run script 'init' function: %s", lua_tostring(luastate, -1));
+ goto error;
+ }
+
+ /* process returns from script */
+ if (lua_gettop(luastate) == 0) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "init function in script should return table, nothing returned");
+ goto error;
+ }
+ if (lua_type(luastate, 1) != LUA_TTABLE) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "init function in script should return table, returned is not table");
+ goto error;
+ }
+
+ lua_pushnil(luastate);
+ const char *k, *v;
+ while (lua_next(luastate, -2)) {
+ k = lua_tostring(luastate, -2);
+ if (k == NULL)
+ continue;
+
+ v = lua_tostring(luastate, -1);
+ lua_pop(luastate, 1);
+ if (v == NULL)
+ continue;
+
+ SCLogDebug("k='%s', v='%s'", k, v);
+
+// if (strcmp(k,"protocol") == 0 && strcmp(v, "http") == 0)
+// alproto = ALPROTO_HTTP;
+ }
+ //SCLogInfo("alproto %u", alproto);
+
+ lua_getglobal(luastate, "setup");
+ if (lua_type(luastate, -1) != LUA_TFUNCTION) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "no setup function in script");
+ goto error;
+ }
+
+ lua_getglobal(luastate, "log");
+ if (lua_type(luastate, -1) != LUA_TFUNCTION) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "no log function in script");
+ goto error;
+ }
+
+ lua_getglobal(luastate, "deinit");
+ if (lua_type(luastate, -1) != LUA_TFUNCTION) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "no deinit function in script");
+ goto error;
+ }
+
+ /* pop the table */
+ lua_pop(luastate, 1);
+ lua_close(luastate);
+ return 0;
+error:
+ lua_close(luastate);
+ return -1;
+}
+
+/** \brief setup a luastate for use at runtime
+ *
+ * This loads the script, primes it and then runs the 'setup' function.
+ */
+static lua_State *LuaScriptSetup(const char *filename)
+{
+ lua_State *luastate = luaL_newstate();
+ if (luastate == NULL) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "luaL_newstate failed");
+ goto error;
+ }
+
+ luaL_openlibs(luastate);
+
+ int status;
+ /* hackish, needed to allow unittests to pass buffers as scripts instead of files */
+#if 0//def UNITTESTS
+ if (ut_script != NULL) {
+ status = luaL_loadbuffer(t->luastate, ut_script, strlen(ut_script), "unittest");
+ if (status) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't load file: %s", lua_tostring(t->luastate, -1));
+ goto error;
+ }
+ } else {
+#endif
+ status = luaL_loadfile(luastate, filename);
+ if (status) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't load file: %s", lua_tostring(luastate, -1));
+ goto error;
+ }
+#if 0//def UNITTESTS
+ }
+#endif
+
+ /* prime the script (or something) */
+ if (lua_pcall(luastate, 0, 0, 0) != 0) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't prime file: %s", lua_tostring(luastate, -1));
+ goto error;
+ }
+
+ lua_getglobal(luastate, "setup");
+ if (lua_type(luastate, -1) != LUA_TFUNCTION) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "no init function in script");
+ goto error;
+ }
+
+ //LuaPrintStack(luastate);
+ if (lua_pcall(luastate, 0, 0, 0) != 0) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't run script 'setup' function: %s", lua_tostring(luastate, -1));
+ goto error;
+ }
+ //LuaPrintStack(luastate);
+
+ if (1) { //http
+ if (LogLuaRegisterHttpFunctions(luastate) != 0)
+ SCLogInfo("boooh!");
+ }
+
+ SCLogDebug("lua_State %p is set up", luastate);
+ return luastate;
+error:
+ lua_close(luastate);
+ return NULL;
+}
+
+static OutputCtx *OutputLuaLogInitSub(ConfNode *conf, OutputCtx *parent_ctx)
+{
+ if (conf == NULL)
+ return NULL;
+
+ LogLuaCtx *lua_ctx = SCMalloc(sizeof(LogLuaCtx));
+ if (unlikely(lua_ctx == NULL))
+ return NULL;
+ memset(lua_ctx, 0x00, sizeof(*lua_ctx));
+
+ OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
+ if (unlikely(output_ctx == NULL)) {
+ SCFree(lua_ctx);
+ return NULL;
+ }
+
+ SCMutexInit(&lua_ctx->m, NULL);
+
+ // SCLogInfo("script %s", conf->val);
+
+ SCMutexLock(&lua_ctx->m);
+ lua_ctx->luastate = LuaScriptSetup(conf->val);
+ SCMutexUnlock(&lua_ctx->m);
+ if (lua_ctx->luastate == NULL)
+ goto error;
+
+ SCLogDebug("lua_ctx %p", lua_ctx);
+
+ output_ctx->data = lua_ctx;
+ output_ctx->DeInit = NULL;
+
+ return output_ctx;
+error:
+ SCMutexDestroy(&lua_ctx->m);
+ SCFree(lua_ctx);
+ SCFree(output_ctx);
+ return NULL;
+}
+
+static OutputCtx *OutputLuaLogInit(ConfNode *conf)
+{
+ ConfNode *scripts = ConfNodeLookupChild(conf, "scripts");
+ if (scripts == NULL) {
+ /* No "outputs" section in the configuration. */
+ SCLogInfo("scripts not defined");
+ return NULL;
+ }
+
+ OutputCtx *output_ctx = SCCalloc(1, sizeof(OutputCtx));
+ if (unlikely(output_ctx == NULL)) {
+ return NULL;
+ }
+ TAILQ_INIT(&output_ctx->submodules);
+
+ ConfNode *script;
+ TAILQ_FOREACH(script, &scripts->head, next) {
+ SCLogInfo("script %s", script->val);
+
+ int r = LuaScriptInit(script->val);
+ if (r != 0) {
+ SCLogInfo("script init failed (%d)", r);
+ continue;
+ }
+
+
+ OutputModule *om = SCCalloc(1, sizeof(*om));
+ BUG_ON(om == NULL); //TODO
+
+ if (1) { // TODO, logger type selection logic
+ om->TxLogFunc = LuaTxLogger;
+ om->alproto = ALPROTO_HTTP;
+ om->name = MODULE_NAME;
+ om->conf_name = script->val;
+ om->InitSubFunc = OutputLuaLogInitSub;
+ TAILQ_INSERT_TAIL(&output_ctx->submodules, om, entries);
+ }
+ }
+
+ return output_ctx;
+}
+
+static void OutputLuaLogDoDeinit(LogLuaCtx *lua_ctx)
+{
+ lua_State *luastate = lua_ctx->luastate;
+
+ lua_getglobal(luastate, "deinit");
+ if (lua_type(luastate, -1) != LUA_TFUNCTION) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "no deinit function in script");
+ return;
+ }
+ //LuaPrintStack(luastate);
+
+ if (lua_pcall(luastate, 0, 0, 0) != 0) {
+ SCLogError(SC_ERR_LUAJIT_ERROR, "couldn't run script 'deinit' function: %s", lua_tostring(luastate, -1));
+ return;
+ }
+}
+
+static TmEcode LuaLogThreadInit(ThreadVars *t, void *initdata, void **data)
+{
+ LogLuaThreadCtx *td = SCMalloc(sizeof(*td));
+ if (unlikely(td == NULL))
+ return TM_ECODE_FAILED;
+ memset(td, 0, sizeof(*td));
+
+ if (initdata == NULL) {
+ SCLogDebug("Error getting context for LuaLog. \"initdata\" argument NULL");
+ SCFree(td);
+ return TM_ECODE_FAILED;
+ }
+
+ LogLuaCtx *lua_ctx = ((OutputCtx *)initdata)->data;
+ SCLogDebug("lua_ctx %p", lua_ctx);
+ td->lua_ctx = lua_ctx;
+ *data = (void *)td;
+ return TM_ECODE_OK;
+}
+
+static TmEcode LuaLogThreadDeinit(ThreadVars *t, void *data)
+{
+ LogLuaThreadCtx *td = (LogLuaThreadCtx *)data;
+ if (td == NULL) {
+ return TM_ECODE_OK;
+ }
+
+ SCMutexLock(&td->lua_ctx->m);
+ if (td->lua_ctx->deinit_once == 0) {
+ OutputLuaLogDoDeinit(td->lua_ctx);
+ td->lua_ctx->deinit_once = 1;
+ }
+ SCMutexUnlock(&td->lua_ctx->m);
+
+ /* clear memory */
+ memset(td, 0, sizeof(*td));
+
+ SCFree(td);
+ return TM_ECODE_OK;
+}
+
+void TmModuleLuaLogRegister (void) {
+ tmm_modules[TMM_LUALOG].name = MODULE_NAME;
+ tmm_modules[TMM_LUALOG].ThreadInit = LuaLogThreadInit;
+ tmm_modules[TMM_LUALOG].ThreadDeinit = LuaLogThreadDeinit;
+ tmm_modules[TMM_LUALOG].RegisterTests = NULL;
+ tmm_modules[TMM_LUALOG].cap_flags = 0;
+ tmm_modules[TMM_LUALOG].flags = TM_FLAG_LOGAPI_TM;
+
+ /* register as separate module */
+ OutputRegisterModule(MODULE_NAME, "lua", OutputLuaLogInit);
+ SCLogInfo("registered");
+}
+
+#else
+
+void TmModuleLuaLogRegister (void) {
+ /* no-op */
+}
+
+#endif
projects / thirdparty / suricata.git / commitdiff
