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f937164459
This was toy code used for testing purposes. Code calling Lua should be very explicit about what is loaded into the Lua state. Also, the allocator used is exactly the same allocator used by default w/ luaL_newstate(). Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/*
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* Copyright (C) 2016-2019 Cumulus Networks, Inc.
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* Donald Sharp, Quentin Young
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more 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 this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __FRRLUA_H__
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#define __FRRLUA_H__
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#if defined(HAVE_LUA)
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#include "lua.h"
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#include "lualib.h"
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#include "lauxlib.h"
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#include "prefix.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Status enum for Lua routemap processing results
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*/
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enum frrlua_rm_status {
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/*
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* Script function run failure. This will translate into a
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* deny
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*/
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LUA_RM_FAILURE = 0,
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/*
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* No Match was found for the route map function
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*/
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LUA_RM_NOMATCH,
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/*
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* Match was found but no changes were made to the
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* incoming data.
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*/
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LUA_RM_MATCH,
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/*
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* Match was found and data was modified, so
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* figure out what changed
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*/
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LUA_RM_MATCH_AND_CHANGE,
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};
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/*
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* Pushes a new table containing relevant fields from a prefix structure.
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*
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* Additionally sets the global variable "prefix" to point at this table.
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*/
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void frrlua_newtable_prefix(lua_State *L, const struct prefix *prefix);
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/*
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* Pushes a new table containing relevant fields from an interface structure.
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*/
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void frrlua_newtable_interface(lua_State *L, const struct interface *ifp);
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/*
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* Runs a routemap rule or something
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*/
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enum frrlua_rm_status frrlua_run_rm_rule(lua_State *L, const char *rule);
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/*
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* Retrieve a string from table on the top of the stack.
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*
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* key
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* Key of string value in table
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*/
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const char *frrlua_table_get_string(lua_State *L, const char *key);
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/*
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* Retrieve an integer from table on the top of the stack.
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*
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* key
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* Key of string value in table
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*/
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int frrlua_table_get_integer(lua_State *L, const char *key);
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/*
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* Exports a new table containing bindings to FRR zlog functions into the
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* global namespace.
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*
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* From Lua, these functions may be accessed as:
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*
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* - log.debug()
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* - log.info()
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* - log.warn()
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* - log.error()
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*
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* They take a single string argument.
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*/
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void frrlua_export_logging(lua_State *L);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAVE_LUA */
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#endif /* __FRRLUA_H__ */
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