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2618a52ed3
This is mostly relevant for Solaris, where config.h sets up some #define that affect overall header behaviour, so it needs to be before anything else. Signed-off-by: David Lamparter <equinox@diac24.net>
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/*
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* This file defines the lua interface into
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* FRRouting.
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*
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* Copyright (C) 2016 Cumulus Networks, Inc.
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* Donald Sharp
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*
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* This file is part of FreeRangeRouting (FRR).
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*
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* FRR is free software; you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2, or (at your option) any later version.
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*
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* FRR is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FRR; see the file COPYING. If not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <zebra.h>
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#if defined(HAVE_LUA)
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#include "prefix.h"
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#include "frrlua.h"
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#include "log.h"
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static int lua_zlog_debug(lua_State *L)
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{
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int debug_lua = 1;
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const char *string = lua_tostring(L, 1);
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if (debug_lua)
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zlog_debug("%s", string);
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return 0;
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}
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const char *get_string(lua_State *L, const char *key)
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{
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const char *str;
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lua_pushstring(L, key);
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lua_gettable(L, -2);
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str = (const char *)lua_tostring(L, -1);
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lua_pop(L, 1);
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return str;
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}
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int get_integer(lua_State *L, const char *key)
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{
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int result;
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lua_pushstring(L, key);
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lua_gettable(L, -2);
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result = lua_tointeger(L, -1);
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lua_pop(L, 1);
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return result;
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}
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static void *lua_alloc(void *ud, void *ptr, size_t osize,
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size_t nsize)
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{
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(void)ud; (void)osize; /* not used */
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if (nsize == 0) {
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free(ptr);
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return NULL;
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} else
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return realloc(ptr, nsize);
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}
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lua_State *lua_initialize(const char *file)
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{
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int status;
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lua_State *L = lua_newstate(lua_alloc, NULL);
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zlog_debug("Newstate: %p", L);
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luaL_openlibs(L);
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zlog_debug("Opened lib");
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status = luaL_loadfile(L, file);
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if (status) {
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zlog_debug("Failure to open %s %d", file, status);
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lua_close(L);
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return NULL;
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}
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lua_pcall(L, 0, LUA_MULTRET, 0);
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zlog_debug("Setting global function");
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lua_pushcfunction(L, lua_zlog_debug);
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lua_setglobal(L, "zlog_debug");
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return L;
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}
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void lua_setup_prefix_table(lua_State *L, const struct prefix *prefix)
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{
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char buffer[100];
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lua_newtable(L);
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lua_pushstring(L, prefix2str(prefix, buffer, 100));
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lua_setfield(L, -2, "route");
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lua_pushinteger(L, prefix->family);
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lua_setfield(L, -2, "family");
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lua_setglobal(L, "prefix");
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}
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enum lua_rm_status lua_run_rm_rule(lua_State *L, const char *rule)
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{
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int status;
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lua_getglobal(L, rule);
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status = lua_pcall(L, 0, 1, 0);
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if (status) {
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zlog_debug("Executing Failure with function: %s: %d",
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rule, status);
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return LUA_RM_FAILURE;
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}
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status = lua_tonumber(L, -1);
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return status;
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}
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#endif
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