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ucode: update ubus/uloop exception handling patches

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Function renames and a leak fix

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2025-07-14 12:15:59 +02:00
parent 6615c8cfc8
commit b626262226
4 changed files with 37 additions and 31 deletions
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2
package/utils/ucode/Makefile
View file

@ -8,7 +8,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=ucode
PKG_RELEASE:=1
PKG_RELEASE:=2
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL=https://github.com/jow-/ucode.git

10
package/utils/ucode/patches/100-vm-export-function-for-converting-exception-to-ucode.patch
View file

@ -15,20 +15,20 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
void __attribute__((format(printf, 3, 0)))
uc_vm_raise_exception(uc_vm_t *vm, uc_exception_type_t type, const char *fmt, ...);
+uc_value_t *uc_vm_exception_value(uc_vm_t *vm);
+uc_value_t *uc_vm_exception_object(uc_vm_t *vm);
uc_vm_status_t uc_vm_execute(uc_vm_t *vm, uc_program_t *fn, uc_value_t **retval);
uc_value_t *uc_vm_invoke(uc_vm_t *vm, const char *fname, size_t nargs, ...);
--- a/vm.c
+++ b/vm.c
@@ -814,9 +814,12 @@ uc_vm_exception_tostring(uc_vm_t *vm, si
@@ -813,9 +813,12 @@ uc_vm_exception_tostring(uc_vm_t *vm, si
return message ? ucv_get(message) : ucv_string_new("Exception");
}
-static uc_value_t *
-uc_vm_exception_new(uc_vm_t *vm, uc_exception_type_t type, const char *message, uc_value_t *stacktrace)
+uc_value_t *
+uc_vm_exception_value(uc_vm_t *vm)
+uc_vm_exception_object(uc_vm_t *vm)
{
+ uc_exception_type_t type = vm->exception.type;
+ const char *message = vm->exception.message;
@ -36,12 +36,12 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
uc_value_t *exception_prototype = uc_vm_registry_get(vm, "vm.exception.proto");
uc_value_t *exo;
@@ -881,7 +884,7 @@ uc_vm_handle_exception(uc_vm_t *vm)
@@ -880,7 +883,7 @@ uc_vm_handle_exception(uc_vm_t *vm)
ucv_put(uc_vm_stack_pop(vm));
/* prepare exception object and expose it to user handler code */
- exo = uc_vm_exception_new(vm, vm->exception.type, vm->exception.message, vm->exception.stacktrace);
+ exo = uc_vm_exception_value(vm);
+ exo = uc_vm_exception_object(vm);
uc_vm_stack_push(vm, exo);

17
package/utils/ucode/patches/101-uloop-add-exception_handler_set-function.patch → package/utils/ucode/patches/101-uloop-add-guard-function.patch
View file

@ -1,6 +1,6 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 11 Jun 2025 18:31:39 +0200
Subject: [PATCH] uloop: add exception_handler_set function
Subject: [PATCH] uloop: add guard() function
This allows calling the provided handler on exceptions, avoiding the
existing behavior of calling uloop_end().
@ -25,9 +25,9 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (!ucv_is_callable(exh))
+ goto error;
+
+ val = uc_vm_exception_value(vm);
+ val = uc_vm_exception_object(vm);
+ uc_vm_stack_push(vm, ucv_get(exh));
+ uc_vm_stack_push(vm, ucv_get(val));
+ uc_vm_stack_push(vm, val);
+
+ if (uc_vm_call(vm, false, 1) != EXCEPTION_NONE)
+ goto error;
@ -109,15 +109,18 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
res = uc_vm_stack_pop(vm);
uc_uloop_pipe_send_common(vm, res, tpipe->output);
ucv_put(res);
@@ -2167,6 +2181,19 @@ uc_uloop_signal(uc_vm_t *vm, size_t narg
@@ -2167,6 +2181,22 @@ uc_uloop_signal(uc_vm_t *vm, size_t narg
}
#endif
+static uc_value_t *
+uc_uloop_exception_handler_set(uc_vm_t *vm, size_t nargs)
+uc_uloop_guard(uc_vm_t *vm, size_t nargs)
+{
+ uc_value_t *arg = uc_fn_arg(0);
+
+ if (!nargs)
+ return ucv_get(uc_vm_registry_get(vm, "uloop.ex_handler"));
+
+ if (arg && !ucv_is_callable(arg))
+ return NULL;
+
@ -129,11 +132,11 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static const uc_function_list_t timer_fns[] = {
{ "set", uc_uloop_timer_set },
@@ -2233,6 +2260,7 @@ static const uc_function_list_t global_f
@@ -2233,6 +2263,7 @@ static const uc_function_list_t global_f
#ifdef HAVE_ULOOP_SIGNAL
{ "signal", uc_uloop_signal },
#endif
+ { "exception_handler_set", uc_uloop_exception_handler_set },
+ { "guard", uc_uloop_guard },
};

39
package/utils/ucode/patches/102-ubus-add-exception_handler_set-function.patch → package/utils/ucode/patches/102-ubus-add-guard-function.patch
View file

@ -1,6 +1,6 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 11 Jun 2025 18:40:10 +0200
Subject: [PATCH] ubus: add exception_handler_set function
Subject: [PATCH] ubus: add guard() function
This allows calling the provided handler on exceptions, avoiding the
existing behavior of calling uloop_end().
@ -10,7 +10,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/lib/ubus.c
+++ b/lib/ubus.c
@@ -573,6 +573,40 @@ uc_ubus_call_cb(struct ubus_request *req
@@ -575,6 +575,40 @@ uc_ubus_call_cb(struct ubus_request *req
}
static void
@ -22,9 +22,9 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (!ucv_is_callable(exh))
+ goto error;
+
+ val = uc_vm_exception_value(vm);
+ val = uc_vm_exception_object(vm);
+ uc_vm_stack_push(vm, ucv_get(exh));
+ uc_vm_stack_push(vm, ucv_get(val));
+ uc_vm_stack_push(vm, val);
+
+ if (uc_vm_call(vm, false, 1) != EXCEPTION_NONE)
+ goto error;
@ -51,7 +51,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
uc_ubus_call_user_cb(uc_ubus_deferred_t *defer, int ret, uc_value_t *reply)
{
uc_value_t *this = ucv_get(defer->res);
@@ -623,10 +657,8 @@ uc_ubus_call_data_user_cb(struct ubus_re
@@ -625,10 +659,8 @@ uc_ubus_call_data_user_cb(struct ubus_re
uc_vm_stack_push(vm, ucv_get(func));
uc_vm_stack_push(vm, ucv_get(reply));
@ -63,7 +63,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
}
@@ -645,10 +677,8 @@ uc_ubus_call_fd_cb(struct ubus_request *
@@ -647,10 +679,8 @@ uc_ubus_call_fd_cb(struct ubus_request *
uc_vm_stack_push(vm, ucv_get(func));
uc_vm_stack_push(vm, ucv_int64_new(fd));
@ -75,7 +75,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
}
@@ -927,10 +957,8 @@ uc_ubus_defer_common(uc_vm_t *vm, uc_ubu
@@ -929,10 +959,8 @@ uc_ubus_defer_common(uc_vm_t *vm, uc_ubu
uc_vm_stack_push(vm, ucv_get(replycb));
uc_vm_stack_push(vm, ucv_int64_new(rv));
@ -87,7 +87,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
ucv_put(res->res);
}
@@ -1199,10 +1227,8 @@ uc_ubus_object_notify_data_cb(struct ubu
@@ -1201,10 +1229,8 @@ uc_ubus_object_notify_data_cb(struct ubu
uc_vm_stack_push(vm, ucv_int64_new(type));
uc_vm_stack_push(vm, blob_array_to_ucv(vm, blob_data(msg), blob_len(msg), true));
@ -99,7 +99,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
}
@@ -1222,10 +1248,8 @@ uc_ubus_object_notify_status_cb(struct u
@@ -1224,10 +1250,8 @@ uc_ubus_object_notify_status_cb(struct u
uc_vm_stack_push(vm, ucv_int64_new(idx));
uc_vm_stack_push(vm, ucv_int64_new(ret));
@ -111,7 +111,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
}
@@ -1245,10 +1269,8 @@ uc_ubus_object_notify_complete_cb(struct
@@ -1247,10 +1271,8 @@ uc_ubus_object_notify_complete_cb(struct
uc_vm_stack_push(vm, ucv_int64_new(idx));
uc_vm_stack_push(vm, ucv_int64_new(ret));
@ -123,7 +123,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
notifyctx->complete = true;
@@ -1579,7 +1601,7 @@ uc_ubus_handle_reply_common(struct ubus_
@@ -1581,7 +1603,7 @@ uc_ubus_handle_reply_common(struct ubus_
/* treat other exceptions as fatal and halt uloop */
default:
uc_ubus_request_finish_common(callctx, UBUS_STATUS_UNKNOWN_ERROR);
@ -132,7 +132,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
break;
}
@@ -1638,10 +1660,8 @@ uc_ubus_object_subscribe_cb(struct ubus_
@@ -1640,10 +1662,8 @@ uc_ubus_object_subscribe_cb(struct ubus_
uc_vm_stack_push(uuobj->vm, ucv_get(uuobj->res));
uc_vm_stack_push(uuobj->vm, ucv_get(func));
@ -144,7 +144,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
static bool
@@ -1917,10 +1937,8 @@ uc_ubus_listener_cb(struct ubus_context
@@ -1919,10 +1939,8 @@ uc_ubus_listener_cb(struct ubus_context
uc_vm_stack_push(vm, ucv_string_new(type));
uc_vm_stack_push(vm, blob_array_to_ucv(vm, blob_data(msg), blob_len(msg), true));
@ -156,7 +156,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
static uc_value_t *
@@ -2040,10 +2058,8 @@ uc_ubus_subscriber_remove_cb(struct ubus
@@ -2042,10 +2060,8 @@ uc_ubus_subscriber_remove_cb(struct ubus
uc_vm_stack_push(vm, ucv_get(func));
uc_vm_stack_push(vm, ucv_uint64_new(id));
@ -168,7 +168,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
static uc_value_t *
@@ -2334,10 +2350,8 @@ uc_ubus_channel_disconnect_cb(struct ubu
@@ -2370,10 +2386,8 @@ uc_ubus_channel_disconnect_cb(struct ubu
uc_vm_stack_push(c->vm, ucv_get(c->res));
uc_vm_stack_push(c->vm, ucv_get(func));
@ -180,15 +180,18 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
}
blob_buf_free(&c->buf);
@@ -2438,10 +2452,25 @@ uc_ubus_channel_connect(uc_vm_t *vm, siz
@@ -2474,10 +2488,28 @@ uc_ubus_channel_connect(uc_vm_t *vm, siz
}
+static uc_value_t *
+uc_ubus_exception_handler_set(uc_vm_t *vm, size_t nargs)
+uc_ubus_guard(uc_vm_t *vm, size_t nargs)
+{
+ uc_value_t *arg = uc_fn_arg(0);
+
+ if (!nargs)
+ return ucv_get(uc_vm_registry_get(vm, "ubus.ex_handler"));
+
+ if (arg && !ucv_is_callable(arg))
+ return NULL;
+
@ -202,7 +205,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
{ "error", uc_ubus_error },
{ "connect", uc_ubus_connect },
{ "open_channel", uc_ubus_channel_connect },
+ { "exception_handler_set", uc_ubus_exception_handler_set },
+ { "guard", uc_ubus_guard },
};
static const uc_function_list_t conn_fns[] = {