fixup! luaxdp: refactor callback API to use ctx object

Signed-off-by: Ashwani Kumar Kamal <ashwanikamal.im421@gmail.com>

Author: sneaky-potato

lib/luaxdp.c

@@ -20,10 +20,10 @@
 #include <linux/bpf.h>
 
 #include <lunatik.h>
+#include <lunatik_ebpf.h>
 
 #include "luarcu.h"
 #include "luadata.h"
-#include "lunatik_bpf.h"
 
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 4, 0))
 #include <linux/btf.h>
@@ -157,31 +157,13 @@ static int luaxdp_handler(lua_State *L, luaxdp_ctx_t *ctx)
 	return 0;
 }
 
-static inline int luaxdp_checkruntimes(void)
-{
-	const char *key = "runtimes";
-	if (luaxdp_runtimes == NULL &&
-	   (luaxdp_runtimes = luarcu_getobject(lunatik_env, key, sizeof(key))) == NULL)
-		return -1;
-	return 0;
-}
-
 __bpf_kfunc int bpf_luaxdp_run(char *key, size_t key__sz, struct xdp_md *xdp_ctx, void *arg, size_t arg__sz)
 {
-	lunatik_object_t *runtime;
 	int action = -1;
-	size_t keylen = key__sz - 1;
 
-	if (unlikely(luaxdp_checkruntimes() != 0)) {
-		pr_err("couldn't find _ENV.runtimes\n");
+	lunatik_object_t *runtime = lunatik_ebpf_lookup(luaxdp_runtimes, key, key__sz);
+	if (runtime == NULL)
 		goto out;
-	}
-
-	key[keylen] = '\0';
-	if ((runtime = luarcu_getobject(luaxdp_runtimes, key, keylen)) == NULL) {
-		pr_err("couldn't find runtime '%s'\n", key);
-		goto out;
-	}
 
 	luaxdp_ctx_t ctx = {
 		.xdp     = (struct xdp_buff *)xdp_ctx,
@@ -272,7 +254,7 @@ static int luaxdp_detach(lua_State *L)
 *   local function my_packet_processor(ctx)
 *     local packet_buffer = ctx:packet()
 *     print("Packet received, size:", #packet_buffer)
-*     ctx:action(XDP_PASS)
+*     ctx:action(action.PASS)
 *     return nil
 *   end
 *   xdp.attach(my_packet_processor)