diff options
| -rw-r--r-- | package/utils/ucode-mod-bpf/Makefile | 40 | ||||
| -rw-r--r-- | package/utils/ucode-mod-bpf/src/bpf.c | 814 |
2 files changed, 854 insertions, 0 deletions
diff --git a/package/utils/ucode-mod-bpf/Makefile b/package/utils/ucode-mod-bpf/Makefile new file mode 100644 index 0000000000..a748b9dbbd --- /dev/null +++ b/package/utils/ucode-mod-bpf/Makefile @@ -0,0 +1,40 @@ +include $(TOPDIR)/rules.mk + +PKG_NAME:=ucode-mod-bpf +PKG_RELEASE:=1 +PKG_LICENSE:=ISC +PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name> + +include $(INCLUDE_DIR)/package.mk +include $(INCLUDE_DIR)/nls.mk + +define Package/ucode-mod-bpf + SECTION:=utils + CATEGORY:=Utilities + TITLE:=ucode eBPF module + DEPENDS:=+libucode +libbpf +endef + +define Package/ucode-mod-bpf/description +The bpf plugin provides functionality for loading and interacting with +eBPF modules. + +It allows loading full modules and pinned maps/programs and supports +interacting with maps and attaching programs as tc classifiers. +endef + +define Package/ucode-mod-bpf/install + $(INSTALL_DIR) $(1)/usr/lib/ucode + $(CP) $(PKG_BUILD_DIR)/bpf.so $(1)/usr/lib/ucode/ +endef + +define Build/Configure +endef + +define Build/Compile + $(TARGET_CC) $(TARGET_CFLAGS) $(TARGET_LDFLAGS) $(FPIC) \ + -Wall -ffunction-sections -Wl,--gc-sections -shared -Wl,--no-as-needed -lbpf \ + -o $(PKG_BUILD_DIR)/bpf.so $(PKG_BUILD_DIR)/bpf.c +endef + +$(eval $(call BuildPackage,ucode-mod-bpf)) diff --git a/package/utils/ucode-mod-bpf/src/bpf.c b/package/utils/ucode-mod-bpf/src/bpf.c new file mode 100644 index 0000000000..415215e54e --- /dev/null +++ b/package/utils/ucode-mod-bpf/src/bpf.c @@ -0,0 +1,814 @@ +#include <sys/resource.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <net/if.h> + +#include <stdint.h> +#include <stdio.h> +#include <errno.h> +#include <unistd.h> + +#include <bpf/bpf.h> +#include <bpf/libbpf.h> + +#include "ucode/module.h" + +#define err_return_int(err, ...) do { set_error(err, __VA_ARGS__); return -1; } while(0) +#define err_return(err, ...) do { set_error(err, __VA_ARGS__); return NULL; } while(0) +#define TRUE ucv_boolean_new(true) + +static uc_resource_type_t *module_type, *map_type, *map_iter_type, *program_type; +static uc_value_t *registry; +static uc_vm_t *debug_vm; + +static struct { + int code; + char *msg; +} last_error; + +struct uc_bpf_fd { + int fd; + bool close; +}; + +struct uc_bpf_map { + struct uc_bpf_fd fd; /* must be first */ + unsigned int key_size, val_size; +}; + +struct uc_bpf_map_iter { + int fd; + unsigned int key_size; + bool has_next; + uint8_t key[]; +}; + +__attribute__((format(printf, 2, 3))) static void +set_error(int errcode, const char *fmt, ...) +{ + va_list ap; + + free(last_error.msg); + + last_error.code = errcode; + last_error.msg = NULL; + + if (fmt) { + va_start(ap, fmt); + xvasprintf(&last_error.msg, fmt, ap); + va_end(ap); + } +} + +static void init_env(void) +{ + static bool init_done = false; + struct rlimit limit = { + .rlim_cur = RLIM_INFINITY, + .rlim_max = RLIM_INFINITY, + }; + + if (init_done) + return; + + setrlimit(RLIMIT_MEMLOCK, &limit); + init_done = true; +} + +static uc_value_t * +uc_bpf_error(uc_vm_t *vm, size_t nargs) +{ + uc_value_t *numeric = uc_fn_arg(0); + const char *msg = last_error.msg; + int code = last_error.code; + uc_stringbuf_t *buf; + const char *s; + + if (last_error.code == 0) + return NULL; + + set_error(0, NULL); + + if (ucv_is_truish(numeric)) + return ucv_int64_new(code); + + buf = ucv_stringbuf_new(); + if (code < 0 && msg) { + ucv_stringbuf_addstr(buf, msg, strlen(msg)); + } else { + s = strerror(code); + ucv_stringbuf_addstr(buf, s, strlen(s)); + if (msg) + ucv_stringbuf_printf(buf, ": %s", msg); + } + + return ucv_stringbuf_finish(buf); +} + +static int +uc_bpf_module_set_opts(struct bpf_object *obj, uc_value_t *opts) +{ + uc_value_t *val; + + if (!opts) + return 0; + + if (ucv_type(opts) != UC_OBJECT) + err_return_int(EINVAL, "options argument"); + + if ((val = ucv_object_get(opts, "rodata", NULL)) != NULL) { + struct bpf_map *map = NULL; + + if (ucv_type(val) != UC_STRING) + err_return_int(EINVAL, "rodata type"); + + while ((map = bpf_object__next_map(obj, map)) != NULL) { + if (!strstr(bpf_map__name(map), ".rodata")) + continue; + + break; + } + + if (!map) + err_return_int(errno, "rodata map"); + + if (bpf_map__set_initial_value(map, ucv_string_get(val), + ucv_string_length(val))) + err_return_int(errno, "rodata"); + } + + if ((val = ucv_object_get(opts, "program-type", NULL)) != NULL) { + if (ucv_type(val) != UC_OBJECT) + err_return_int(EINVAL, "prog_types argument"); + + ucv_object_foreach(val, name, type) { + struct bpf_program *prog; + + if (ucv_type(type) != UC_INTEGER) + err_return_int(EINVAL, "program %s type", name); + + prog = bpf_object__find_program_by_name(obj, name); + if (!prog) + err_return_int(-1, "program %s not found", name); + + bpf_program__set_type(prog, ucv_int64_get(type)); + } + } + + return 0; +} + +static uc_value_t * +uc_bpf_open_module(uc_vm_t *vm, size_t nargs) +{ + DECLARE_LIBBPF_OPTS(bpf_object_open_opts, bpf_opts); + uc_value_t *path = uc_fn_arg(0); + uc_value_t *opts = uc_fn_arg(1); + struct bpf_object *obj; + + if (ucv_type(path) != UC_STRING) + err_return(EINVAL, "module path"); + + init_env(); + obj = bpf_object__open_file(ucv_string_get(path), &bpf_opts); + if (libbpf_get_error(obj)) + err_return(errno, NULL); + + if (uc_bpf_module_set_opts(obj, opts)) { + bpf_object__close(obj); + return NULL; + } + + if (bpf_object__load(obj)) { + bpf_object__close(obj); + err_return(errno, NULL); + } + + return uc_resource_new(module_type, obj); +} + +static uc_value_t * +uc_bpf_map_create(int fd, unsigned int key_size, unsigned int val_size, bool close) +{ + struct uc_bpf_map *uc_map; + + uc_map = xalloc(sizeof(*uc_map)); + uc_map->fd.fd = fd; + uc_map->key_size = key_size; + uc_map->val_size = val_size; + uc_map->fd.close = close; + + return uc_resource_new(map_type, uc_map); +} + +static uc_value_t * +uc_bpf_open_map(uc_vm_t *vm, size_t nargs) +{ + struct bpf_map_info info; + uc_value_t *path = uc_fn_arg(0); + __u32 len = sizeof(info); + int err; + int fd; + + if (ucv_type(path) != UC_STRING) + err_return(EINVAL, "module path"); + + fd = bpf_obj_get(ucv_string_get(path)); + if (fd < 0) + err_return(errno, NULL); + + err = bpf_obj_get_info_by_fd(fd, &info, &len); + if (err) { + close(fd); + err_return(errno, NULL); + } + + return uc_bpf_map_create(fd, info.key_size, info.value_size, true); +} + +static uc_value_t * +uc_bpf_open_program(uc_vm_t *vm, size_t nargs) +{ + uc_value_t *path = uc_fn_arg(0); + struct uc_bpf_fd *f; + int fd; + + if (ucv_type(path) != UC_STRING) + err_return(EINVAL, "module path"); + + fd = bpf_obj_get(ucv_string_get(path)); + if (fd < 0) + err_return(errno, NULL); + + f = xalloc(sizeof(*f)); + f->fd = fd; + f->close = true; + + return uc_resource_new(program_type, f); +} + +static uc_value_t * +uc_bpf_module_get_maps(uc_vm_t *vm, size_t nargs) +{ + struct bpf_object *obj = uc_fn_thisval("bpf.module"); + struct bpf_map *map = NULL; + uc_value_t *rv; + int i = 0; + + if (!obj) + err_return(EINVAL, NULL); + + rv = ucv_array_new(vm); + bpf_object__for_each_map(map, obj) + ucv_array_set(rv, i++, ucv_string_new(bpf_map__name(map))); + + return rv; +} + +static uc_value_t * +uc_bpf_module_get_map(uc_vm_t *vm, size_t nargs) +{ + struct bpf_object *obj = uc_fn_thisval("bpf.module"); + struct bpf_map *map; + uc_value_t *name = uc_fn_arg(0); + int fd; + + if (!obj || ucv_type(name) != UC_STRING) + err_return(EINVAL, NULL); + + map = bpf_object__find_map_by_name(obj, ucv_string_get(name)); + if (!map) + err_return(errno, NULL); + + fd = bpf_map__fd(map); + if (fd < 0) + err_return(EINVAL, NULL); + + return uc_bpf_map_create(fd, bpf_map__key_size(map), bpf_map__value_size(map), false); +} + +static uc_value_t * +uc_bpf_module_get_programs(uc_vm_t *vm, size_t nargs) +{ + struct bpf_object *obj = uc_fn_thisval("bpf.module"); + struct bpf_program *prog = NULL; + uc_value_t *rv; + int i = 0; + + if (!obj) + err_return(EINVAL, NULL); + + rv = ucv_array_new(vm); + bpf_object__for_each_program(prog, obj) + ucv_array_set(rv, i++, ucv_string_new(bpf_program__name(prog))); + + return rv; +} + +static uc_value_t * +uc_bpf_module_get_program(uc_vm_t *vm, size_t nargs) +{ + struct bpf_object *obj = uc_fn_thisval("bpf.module"); + struct bpf_program *prog; + uc_value_t *name = uc_fn_arg(0); + struct uc_bpf_fd *f; + int fd; + + if (!obj || !name || ucv_type(name) != UC_STRING) + err_return(EINVAL, NULL); + + prog = bpf_object__find_program_by_name(obj, ucv_string_get(name)); + if (!prog) + err_return(errno, NULL); + + fd = bpf_program__fd(prog); + if (fd < 0) + err_return(EINVAL, NULL); + + f = xalloc(sizeof(*f)); + f->fd = fd; + + return uc_resource_new(program_type, f); +} + +static void * +uc_bpf_map_arg(uc_value_t *val, const char *kind, unsigned int size) +{ + static union { + uint32_t u32; + uint64_t u64; + } val_int; + + switch (ucv_type(val)) { + case UC_INTEGER: + if (size == 4) + val_int.u32 = ucv_int64_get(val); + else if (size == 8) + val_int.u64 = ucv_int64_get(val); + else + break; + + return &val_int; + case UC_STRING: + if (size != ucv_string_length(val)) + break; + + return ucv_string_get(val); + default: + err_return(EINVAL, "%s type", kind); + } + + err_return(EINVAL, "%s size mismatch (expected: %d)", kind, size); +} + +static uc_value_t * +uc_bpf_map_get(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map *map = uc_fn_thisval("bpf.map"); + uc_value_t *a_key = uc_fn_arg(0); + void *key, *val; + + if (!map) + err_return(EINVAL, NULL); + + key = uc_bpf_map_arg(a_key, "key", map->key_size); + if (!key) + return NULL; + + val = alloca(map->val_size); + if (bpf_map_lookup_elem(map->fd.fd, key, val)) + return NULL; + + return ucv_string_new_length(val, map->val_size); +} + +static uc_value_t * +uc_bpf_map_set(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map *map = uc_fn_thisval("bpf.map"); + uc_value_t *a_key = uc_fn_arg(0); + uc_value_t *a_val = uc_fn_arg(1); + uc_value_t *a_flags = uc_fn_arg(2); + uint64_t flags; + void *key, *val; + + if (!map) + err_return(EINVAL, NULL); + + key = uc_bpf_map_arg(a_key, "key", map->key_size); + if (!key) + return NULL; + + val = uc_bpf_map_arg(a_val, "value", map->val_size); + if (!val) + return NULL; + + if (!a_flags) + flags = BPF_ANY; + else if (ucv_type(a_flags) != UC_INTEGER) + err_return(EINVAL, "flags"); + else + flags = ucv_int64_get(a_flags); + + if (bpf_map_update_elem(map->fd.fd, key, val, flags)) + return NULL; + + return ucv_string_new_length(val, map->val_size); +} + +static uc_value_t * +uc_bpf_map_delete(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map *map = uc_fn_thisval("bpf.map"); + uc_value_t *a_key = uc_fn_arg(0); + uc_value_t *a_return = uc_fn_arg(1); + void *key, *val = NULL; + int ret; + + if (!map) + err_return(EINVAL, NULL); + + key = uc_bpf_map_arg(a_key, "key", map->key_size); + if (!key) + return NULL; + + if (!ucv_is_truish(a_return)) { + ret = bpf_map_delete_elem(map->fd.fd, key); + + return ucv_boolean_new(ret == 0); + } + + val = alloca(map->val_size); + if (bpf_map_lookup_and_delete_elem(map->fd.fd, key, val)) + return NULL; + + return ucv_string_new_length(val, map->val_size); +} + +static uc_value_t * +uc_bpf_map_delete_all(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map *map = uc_fn_thisval("bpf.map"); + uc_value_t *filter = uc_fn_arg(0); + bool has_next; + void *key, *next; + + if (!map) + err_return(EINVAL, NULL); + + key = alloca(map->key_size); + next = alloca(map->key_size); + has_next = !bpf_map_get_next_key(map->fd.fd, NULL, next); + while (has_next) { + bool skip = false; + + memcpy(key, next, map->key_size); + has_next = !bpf_map_get_next_key(map->fd.fd, next, next); + + if (ucv_is_callable(filter)) { + uc_value_t *rv; + + uc_value_push(ucv_get(filter)); + uc_value_push(ucv_string_new_length((const char *)key, map->key_size)); + if (uc_call(1) != EXCEPTION_NONE) + break; + + rv = uc_vm_stack_pop(vm); + if (!rv) + break; + + skip = !ucv_is_truish(rv); + ucv_put(rv); + } + + if (!skip) + bpf_map_delete_elem(map->fd.fd, key); + } + + return TRUE; +} + +static uc_value_t * +uc_bpf_map_iterator(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map *map = uc_fn_thisval("bpf.map"); + struct uc_bpf_map_iter *iter; + + if (!map) + err_return(EINVAL, NULL); + + iter = xalloc(sizeof(*iter) + map->key_size); + iter->fd = map->fd.fd; + iter->key_size = map->key_size; + iter->has_next = !bpf_map_get_next_key(iter->fd, NULL, &iter->key); + + return uc_resource_new(map_iter_type, iter); +} + +static uc_value_t * +uc_bpf_map_iter_next(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map_iter *iter = uc_fn_thisval("bpf.map_iter"); + uc_value_t *rv; + + if (!iter->has_next) + return NULL; + + rv = ucv_string_new_length((const char *)iter->key, iter->key_size); + iter->has_next = !bpf_map_get_next_key(iter->fd, &iter->key, &iter->key); + + return rv; +} + +static uc_value_t * +uc_bpf_map_iter_next_int(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map_iter *iter = uc_fn_thisval("bpf.map_iter"); + uint64_t intval; + uc_value_t *rv; + + if (!iter->has_next) + return NULL; + + if (iter->key_size == 4) + intval = *(uint32_t *)iter->key; + else if (iter->key_size == 8) + intval = *(uint64_t *)iter->key; + else + return NULL; + + rv = ucv_int64_new(intval); + iter->has_next = !bpf_map_get_next_key(iter->fd, &iter->key, &iter->key); + + return rv; +} + +static uc_value_t * +uc_bpf_map_foreach(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_map *map = uc_fn_thisval("bpf.map"); + uc_value_t *func = uc_fn_arg(0); + bool has_next; + void *key, *next; + bool ret = false; + + key = alloca(map->key_size); + next = alloca(map->key_size); + has_next = !bpf_map_get_next_key(map->fd.fd, NULL, next); + + while (has_next) { + uc_value_t *rv; + bool stop; + + memcpy(key, next, map->key_size); + has_next = !bpf_map_get_next_key(map->fd.fd, next, next); + + uc_value_push(ucv_get(func)); + uc_value_push(ucv_string_new_length((const char *)key, map->key_size)); + + if (uc_call(1) != EXCEPTION_NONE) + break; + + rv = uc_vm_stack_pop(vm); + stop = (ucv_type(rv) == UC_BOOLEAN && !ucv_boolean_get(rv)); + ucv_put(rv); + + if (stop) + break; + + ret = true; + } + + return ucv_boolean_new(ret); +} + +static uc_value_t * +uc_bpf_obj_pin(uc_vm_t *vm, size_t nargs, const char *type) +{ + struct uc_bpf_fd *f = uc_fn_thisval(type); + uc_value_t *path = uc_fn_arg(0); + + if (ucv_type(path) != UC_STRING) + err_return(EINVAL, NULL); + + if (bpf_obj_pin(f->fd, ucv_string_get(path))) + err_return(errno, NULL); + + return TRUE; +} + +static uc_value_t * +uc_bpf_program_pin(uc_vm_t *vm, size_t nargs) +{ + return uc_bpf_obj_pin(vm, nargs, "bpf.program"); +} + +static uc_value_t * +uc_bpf_map_pin(uc_vm_t *vm, size_t nargs) +{ + return uc_bpf_obj_pin(vm, nargs, "bpf.map"); +} + +static uc_value_t * +uc_bpf_set_tc_hook(uc_value_t *ifname, uc_value_t *type, uc_value_t *prio, + int fd) +{ + DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook); + DECLARE_LIBBPF_OPTS(bpf_tc_opts, attach_tc, + .handle = 1); + const char *type_str; + uint64_t prio_val; + + if (ucv_type(ifname) != UC_STRING || ucv_type(type) != UC_STRING || + ucv_type(prio) != UC_INTEGER) + err_return(EINVAL, NULL); + + prio_val = ucv_int64_get(prio); + if (prio_val > 0xffff) + err_return(EINVAL, NULL); + + type_str = ucv_string_get(type); + if (!strcmp(type_str, "ingress")) + hook.attach_point = BPF_TC_INGRESS; + else if (!strcmp(type_str, "egress")) + hook.attach_point = BPF_TC_EGRESS; + else + err_return(EINVAL, NULL); + + hook.ifindex = if_nametoindex(ucv_string_get(ifname)); + if (!hook.ifindex) + goto error; + + bpf_tc_hook_create(&hook); + attach_tc.priority = prio_val; + if (bpf_tc_detach(&hook, &attach_tc) < 0 && fd < 0) + goto error; + + if (fd < 0) + goto out; + + attach_tc.prog_fd = fd; + if (bpf_tc_attach(&hook, &attach_tc) < 0) + goto error; + +out: + return TRUE; + +error: + if (fd >= 0) + err_return(ENOENT, NULL); + return NULL; +} + +static uc_value_t * +uc_bpf_program_tc_attach(uc_vm_t *vm, size_t nargs) +{ + struct uc_bpf_fd *f = uc_fn_thisval("bpf.program"); + uc_value_t *ifname = uc_fn_arg(0); + uc_value_t *type = uc_fn_arg(1); + uc_value_t *prio = uc_fn_arg(2); + + if (!f) + err_return(EINVAL, NULL); + + return uc_bpf_set_tc_hook(ifname, type, prio, f->fd); +} + +static uc_value_t * +uc_bpf_tc_detach(uc_vm_t *vm, size_t nargs) +{ + uc_value_t *ifname = uc_fn_arg(0); + uc_value_t *type = uc_fn_arg(1); + uc_value_t *prio = uc_fn_arg(2); + + return uc_bpf_set_tc_hook(ifname, type, prio, -1); +} + +static int +uc_bpf_debug_print(enum libbpf_print_level level, const char *format, + va_list args) +{ + char buf[256], *str = NULL; + uc_value_t *val; + va_list ap; + int size; + + va_copy(ap, args); + size = vsnprintf(buf, sizeof(buf), format, ap); + va_end(ap); + + if (size > 0 && (unsigned long)size < ARRAY_SIZE(buf) - 1) { + val = ucv_string_new(buf); + goto out; + } + + if (vasprintf(&str, format, args) < 0) + return 0; + + val = ucv_string_new(str); + free(str); + +out: + uc_vm_stack_push(debug_vm, ucv_get(ucv_array_get(registry, 0))); + uc_vm_stack_push(debug_vm, ucv_int64_new(level)); + uc_vm_stack_push(debug_vm, val); + if (uc_vm_call(debug_vm, false, 2) == EXCEPTION_NONE) + ucv_put(uc_vm_stack_pop(debug_vm)); + + return 0; +} + +static uc_value_t * +uc_bpf_set_debug_handler(uc_vm_t *vm, size_t nargs) +{ + uc_value_t *handler = uc_fn_arg(0); + + if (handler && !ucv_is_callable(handler)) + err_return(EINVAL, NULL); + + debug_vm = vm; + libbpf_set_print(handler ? uc_bpf_debug_print : NULL); + + ucv_array_set(registry, 0, ucv_get(handler)); + + return NULL; +} + +static void +register_constants(uc_vm_t *vm, uc_value_t *scope) +{ +#define ADD_CONST(x) ucv_object_add(scope, #x, ucv_int64_new(x)) + ADD_CONST(BPF_PROG_TYPE_SCHED_CLS); + ADD_CONST(BPF_PROG_TYPE_SCHED_ACT); + + ADD_CONST(BPF_ANY); + ADD_CONST(BPF_NOEXIST); + ADD_CONST(BPF_EXIST); + ADD_CONST(BPF_F_LOCK); +} + +static const uc_function_list_t module_fns[] = { + { "get_map", uc_bpf_module_get_map }, + { "get_maps", uc_bpf_module_get_maps }, + { "get_programs", uc_bpf_module_get_programs }, + { "get_program", uc_bpf_module_get_program }, +}; + +static void module_free(void *ptr) +{ + struct bpf_object *obj = ptr; + + bpf_object__close(obj); +} + +static const uc_function_list_t map_fns[] = { + { "pin", uc_bpf_map_pin }, + { "get", uc_bpf_map_get }, + { "set", uc_bpf_map_set }, + { "delete", uc_bpf_map_delete }, + { "delete_all", uc_bpf_map_delete_all }, + { "foreach", uc_bpf_map_foreach }, + { "iterator", uc_bpf_map_iterator }, +}; + +static void uc_bpf_fd_free(void *ptr) +{ + struct uc_bpf_fd *f = ptr; + + if (f->close) + close(f->fd); + free(f); +} + +static const uc_function_list_t map_iter_fns[] = { + { "next", uc_bpf_map_iter_next }, + { "next_int", uc_bpf_map_iter_next_int }, +}; + +static const uc_function_list_t prog_fns[] = { + { "pin", uc_bpf_program_pin }, + { "tc_attach", uc_bpf_program_tc_attach }, +}; + +static const uc_function_list_t global_fns[] = { + { "error", uc_bpf_error }, + { "set_debug_handler", uc_bpf_set_debug_handler }, + { "open_module", uc_bpf_open_module }, + { "open_map", uc_bpf_open_map }, + { "open_program", uc_bpf_open_program }, + { "tc_detach", uc_bpf_tc_detach }, +}; + +void uc_module_init(uc_vm_t *vm, uc_value_t *scope) +{ + uc_function_list_register(scope, global_fns); + register_constants(vm, scope); + + registry = ucv_array_new(vm); + uc_vm_registry_set(vm, "bpf.registry", registry); + + module_type = uc_type_declare(vm, "bpf.module", module_fns, module_free); + map_type = uc_type_declare(vm, "bpf.map", map_fns, uc_bpf_fd_free); + map_iter_type = uc_type_declare(vm, "bpf.map_iter", map_iter_fns, free); + program_type = uc_type_declare(vm, "bpf.program", prog_fns, uc_bpf_fd_free); +} |