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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <arpa/inet.h>
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
#include "ap_session.h"
#include "radius_p.h"
#include "luasupp.h"
#include "utils.h"
#define LUA_RADIUS "accel-ppp.radius"
static int radius_attrs(lua_State *L)
{
struct radius_pd_t *rpd = luaL_checkudata(L, 1, LUA_RADIUS);
struct rad_attr_t *attr;
int i = 1;
if (!rpd)
return 0;
if (!rpd->auth_reply) {
lua_pushnil(L);
return 1;
}
lua_newtable(L);
list_for_each_entry(attr, &rpd->auth_reply->attrs, entry) {
lua_createtable(L, 0, 3);
lua_pushstring(L, attr->attr->name);
lua_setfield(L, -2, "name");
if (attr->vendor)
lua_pushstring(L, attr->vendor->name);
else
lua_pushnil(L);
lua_setfield(L, -2, "vendor");
lua_rawseti(L, -2, i++);
}
return 1;
}
static int radius_attr(lua_State *L)
{
struct radius_pd_t *rpd = luaL_checkudata(L, 1, LUA_RADIUS);
const char *name;
const char *vendor;
struct rad_attr_t *attr;
struct rad_dict_value_t *val;
char str[256];
union {
uint64_t ifid;
uint16_t u16[4];
} ifid_u;
int r = 0;
if (!rpd)
return 0;
if (!rpd->auth_reply) {
lua_pushnil(L);
return 1;
}
name = luaL_checkstring(L, 2);
if (!name)
return 0;
vendor = luaL_optstring(L, 3, NULL);
list_for_each_entry(attr, &rpd->auth_reply->attrs, entry) {
if ((attr->vendor && !vendor) || (!attr->vendor && vendor))
continue;
if (vendor && strcmp(vendor, attr->vendor->name))
continue;
if (strcmp(name, attr->attr->name))
continue;
switch (attr->attr->type) {
case ATTR_TYPE_STRING:
lua_pushstring(L, attr->val.string);
break;
case ATTR_TYPE_INTEGER:
val = rad_dict_find_val(attr->attr, attr->val);
if (val) {
lua_pushstring(L, val->name);
break;
}
case ATTR_TYPE_DATE:
lua_pushinteger(L, attr->val.integer);
break;
case ATTR_TYPE_IPADDR:
u_inet_ntoa(attr->val.ipaddr, str);
lua_pushstring(L, str);
break;
case ATTR_TYPE_IFID:
ifid_u.ifid = attr->val.ifid;
sprintf(str, "%x:%x:%x:%x", ntohs(ifid_u.u16[0]), ntohs(ifid_u.u16[1]), ntohs(ifid_u.u16[2]), ntohs(ifid_u.u16[3]));
lua_pushstring(L, str);
break;
case ATTR_TYPE_IPV6ADDR:
inet_ntop(AF_INET6, &attr->val.ipv6addr, str, sizeof(str));
lua_pushstring(L, str);
break;
case ATTR_TYPE_IPV6PREFIX:
inet_ntop(AF_INET6, &attr->val.ipv6prefix.prefix, str, sizeof(str));
sprintf(strchr(str, 0), "/%i", attr->val.ipv6prefix.len);
lua_pushstring(L, str);
break;
default:
lua_pushlstring(L, (char *)attr->val.octets, attr->len);
break;
}
r++;
}
if (!r) {
lua_pushnil(L);
r = 1;
}
return r;
}
static const struct luaL_Reg radius_lib [] = {
{"attrs", radius_attrs},
{"attr", radius_attr},
{NULL, NULL}
};
static void radius_mod_init(lua_State *L)
{
luaL_newmetatable(L, LUA_RADIUS);
lua_pushvalue(L, -1);
lua_setfield(L, -2, "__index");
#if LUA_VERSION_NUM < 502
luaL_register(L, NULL, radius_lib);
#else
luaL_setfuncs(L, radius_lib, 0);
#endif
}
static int radius_mod_get_instance(lua_State *L, struct ap_session *ses)
{
struct radius_pd_t *rpd = find_pd(ses);
if (!rpd) {
lua_pushnil(L);
return 1;
}
lua_pushlightuserdata(L, rpd);
luaL_getmetatable(L, LUA_RADIUS);
lua_setmetatable(L, -2);
return 1;
}
static const struct lua_session_module radius_mod = {
.name = "radius",
.init = radius_mod_init,
.get_instance = radius_mod_get_instance,
};
static void init()
{
lua_session_module_register(&radius_mod);
}
DEFINE_INIT(1, init);
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