Cleanup: Move patches.i to include/generated/
[lttng-modules.git] / lttng-filter-interpreter.c
index 7263ce9636f6ccb3630babe5b348d93954c6ad3f..5ba7e230094458fd864bc7500ce60bf6988dc391 100644 (file)
@@ -1,36 +1,19 @@
-/*
+/* SPDX-License-Identifier: MIT
+ *
  * lttng-filter-interpreter.c
  *
  * LTTng modules filter interpreter.
  *
  * Copyright (C) 2010-2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
  */
 
-#include <linux/uaccess.h>
+#include <wrapper/uaccess.h>
 #include <wrapper/frame.h>
 #include <wrapper/types.h>
 #include <linux/swab.h>
 
-#include <lttng-filter.h>
-#include <lttng-string-utils.h>
+#include <lttng/filter.h>
+#include <lttng/string-utils.h>
 
 LTTNG_STACK_FRAME_NON_STANDARD(lttng_filter_interpret_bytecode);
 
@@ -47,7 +30,7 @@ char get_char(struct estack_entry *reg, size_t offset)
                char c;
 
                /* Handle invalid access as end of string. */
-               if (unlikely(!access_ok(VERIFY_READ,
+               if (unlikely(!lttng_access_ok(VERIFY_READ,
                                reg->u.s.user_str + offset,
                                sizeof(c))))
                        return '\0';
@@ -305,7 +288,7 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
        switch (field->type.atype) {
        case atype_integer:
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
-               if (field->type.u.basic.integer.signedness) {
+               if (field->type.u.integer.signedness) {
                        ptr->object_type = OBJECT_TYPE_S64;
                        ptr->u.s64 = v.s64;
                        ptr->ptr = &ptr->u.s64;
@@ -315,10 +298,10 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                        ptr->ptr = &ptr->u.u64;
                }
                break;
-       case atype_enum:
+       case atype_enum_nestable:
        {
                const struct lttng_integer_type *itype =
-                       &field->type.u.basic.enumeration.container_type;
+                       &field->type.u.enum_nestable.container_type->u.integer;
 
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                if (itype->signedness) {
@@ -332,12 +315,12 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                }
                break;
        }
-       case atype_array:
-               if (field->type.u.array.elem_type.atype != atype_integer) {
+       case atype_array_nestable:
+               if (!lttng_is_bytewise_integer(field->type.u.array_nestable.elem_type)) {
                        printk(KERN_WARNING "Array nesting only supports integer types.\n");
                        return -EINVAL;
                }
-               if (field->type.u.array.elem_type.u.basic.integer.encoding == lttng_encode_none) {
+               if (field->type.u.array_nestable.elem_type->u.integer.encoding == lttng_encode_none) {
                        printk(KERN_WARNING "Only string arrays are supported for contexts.\n");
                        return -EINVAL;
                }
@@ -345,12 +328,12 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                ptr->ptr = v.str;
                break;
-       case atype_sequence:
-               if (field->type.u.sequence.elem_type.atype != atype_integer) {
+       case atype_sequence_nestable:
+               if (!lttng_is_bytewise_integer(field->type.u.sequence_nestable.elem_type)) {
                        printk(KERN_WARNING "Sequence nesting only supports integer types.\n");
                        return -EINVAL;
                }
-               if (field->type.u.sequence.elem_type.u.basic.integer.encoding == lttng_encode_none) {
+               if (field->type.u.sequence_nestable.elem_type->u.integer.encoding == lttng_encode_none) {
                        printk(KERN_WARNING "Only string sequences are supported for contexts.\n");
                        return -EINVAL;
                }
@@ -358,20 +341,17 @@ static int context_get_index(struct lttng_probe_ctx *lttng_probe_ctx,
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                ptr->ptr = v.str;
                break;
-       case atype_array_bitfield:
-               printk(KERN_WARNING "Bitfield array type is not supported.\n");
-               return -EINVAL;
-       case atype_sequence_bitfield:
-               printk(KERN_WARNING "Bitfield sequence type is not supported.\n");
-               return -EINVAL;
        case atype_string:
                ptr->object_type = OBJECT_TYPE_STRING;
                ctx_field->get_value(ctx_field, lttng_probe_ctx, &v);
                ptr->ptr = v.str;
                break;
-       case atype_struct:
+       case atype_struct_nestable:
                printk(KERN_WARNING "Structure type cannot be loaded.\n");
                return -EINVAL;
+       case atype_variant_nestable:
+               printk(KERN_WARNING "Variant type cannot be loaded.\n");
+               return -EINVAL;
        default:
                printk(KERN_WARNING "Unknown type: %d", (int) field->type.atype);
                return -EINVAL;
@@ -572,7 +552,7 @@ static int dynamic_load_field(struct estack_entry *stack_top)
                        ret = -EINVAL;
                        goto end;
                }
-               stack_top->u.s.seq_len = SIZE_MAX;
+               stack_top->u.s.seq_len = LTTNG_SIZE_MAX;
                stack_top->u.s.literal_type =
                        ESTACK_STRING_LITERAL_TYPE_NONE;
                break;
@@ -1559,7 +1539,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
                                ret = -EINVAL;
                                goto end;
                        }
-                       estack_ax(stack, top)->u.s.seq_len = SIZE_MAX;
+                       estack_ax(stack, top)->u.s.seq_len = LTTNG_SIZE_MAX;
                        estack_ax(stack, top)->u.s.literal_type =
                                ESTACK_STRING_LITERAL_TYPE_NONE;
                        next_pc += sizeof(struct load_op);
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