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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_scalar.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_scalar.c
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--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/lwip/src/apps/snmp/snmp_scalar.c
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+/**
+ * @file
+ * SNMP scalar node support implementation.
+ */
+
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Martin Hentschel <info@cl-soft.de>
+ *
+ */
+
+#include "lwip/apps/snmp_opts.h"
+
+#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
+
+#include "lwip/apps/snmp_scalar.h"
+#include "lwip/apps/snmp_core.h"
+
+static s16_t snmp_scalar_array_get_value(struct snmp_node_instance* instance, void* value);
+static snmp_err_t snmp_scalar_array_set_test(struct snmp_node_instance* instance, u16_t value_len, void* value);
+static snmp_err_t snmp_scalar_array_set_value(struct snmp_node_instance* instance, u16_t value_len, void* value);
+
+snmp_err_t
+snmp_scalar_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance)
+{
+ const struct snmp_scalar_node* scalar_node = (const struct snmp_scalar_node*)(const void*)instance->node;
+
+ LWIP_UNUSED_ARG(root_oid);
+ LWIP_UNUSED_ARG(root_oid_len);
+
+ /* scalar only has one dedicated instance: .0 */
+ if ((instance->instance_oid.len != 1) || (instance->instance_oid.id[0] != 0)) {
+ return SNMP_ERR_NOSUCHINSTANCE;
+ }
+
+ instance->access = scalar_node->access;
+ instance->asn1_type = scalar_node->asn1_type;
+ instance->get_value = scalar_node->get_value;
+ instance->set_test = scalar_node->set_test;
+ instance->set_value = scalar_node->set_value;
+ return SNMP_ERR_NOERROR;
+}
+
+snmp_err_t
+snmp_scalar_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance)
+{
+ /* because our only instance is .0 we can only return a next instance if no instance oid is passed */
+ if (instance->instance_oid.len == 0) {
+ instance->instance_oid.len = 1;
+ instance->instance_oid.id[0] = 0;
+
+ return snmp_scalar_get_instance(root_oid, root_oid_len, instance);
+ }
+
+ return SNMP_ERR_NOSUCHINSTANCE;
+}
+
+
+snmp_err_t
+snmp_scalar_array_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance)
+{
+ LWIP_UNUSED_ARG(root_oid);
+ LWIP_UNUSED_ARG(root_oid_len);
+
+ if ((instance->instance_oid.len == 2) && (instance->instance_oid.id[1] == 0)) {
+ const struct snmp_scalar_array_node* array_node = (const struct snmp_scalar_array_node*)(const void*)instance->node;
+ const struct snmp_scalar_array_node_def* array_node_def = array_node->array_nodes;
+ u32_t i = 0;
+
+ while (i < array_node->array_node_count) {
+ if (array_node_def->oid == instance->instance_oid.id[0]) {
+ break;
+ }
+
+ array_node_def++;
+ i++;
+ }
+
+ if (i < array_node->array_node_count) {
+ instance->access = array_node_def->access;
+ instance->asn1_type = array_node_def->asn1_type;
+ instance->get_value = snmp_scalar_array_get_value;
+ instance->set_test = snmp_scalar_array_set_test;
+ instance->set_value = snmp_scalar_array_set_value;
+ instance->reference.const_ptr = array_node_def;
+
+ return SNMP_ERR_NOERROR;
+ }
+ }
+
+ return SNMP_ERR_NOSUCHINSTANCE;
+}
+
+snmp_err_t
+snmp_scalar_array_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance)
+{
+ const struct snmp_scalar_array_node* array_node = (const struct snmp_scalar_array_node*)(const void*)instance->node;
+ const struct snmp_scalar_array_node_def* array_node_def = array_node->array_nodes;
+ const struct snmp_scalar_array_node_def* result = NULL;
+
+ LWIP_UNUSED_ARG(root_oid);
+ LWIP_UNUSED_ARG(root_oid_len);
+
+ if ((instance->instance_oid.len == 0) && (array_node->array_node_count > 0)) {
+ /* return node with lowest OID */
+ u16_t i = 0;
+
+ result = array_node_def;
+ array_node_def++;
+
+ for (i = 1; i < array_node->array_node_count; i++) {
+ if (array_node_def->oid < result->oid) {
+ result = array_node_def;
+ }
+ array_node_def++;
+ }
+ } else if (instance->instance_oid.len >= 1) {
+ if (instance->instance_oid.len == 1) {
+ /* if we have the requested OID we return its instance, otherwise we search for the next available */
+ u16_t i = 0;
+ while (i < array_node->array_node_count) {
+ if (array_node_def->oid == instance->instance_oid.id[0]) {
+ result = array_node_def;
+ break;
+ }
+
+ array_node_def++;
+ i++;
+ }
+ }
+ if (result == NULL) {
+ u32_t oid_dist = 0xFFFFFFFFUL;
+ u16_t i = 0;
+ array_node_def = array_node->array_nodes; /* may be already at the end when if case before was executed without result -> reinitialize to start */
+ while (i < array_node->array_node_count) {
+ if ((array_node_def->oid > instance->instance_oid.id[0]) &&
+ ((u32_t)(array_node_def->oid - instance->instance_oid.id[0]) < oid_dist)) {
+ result = array_node_def;
+ oid_dist = array_node_def->oid - instance->instance_oid.id[0];
+ }
+
+ array_node_def++;
+ i++;
+ }
+ }
+ }
+
+ if (result == NULL) {
+ /* nothing to return */
+ return SNMP_ERR_NOSUCHINSTANCE;
+ }
+
+ instance->instance_oid.len = 2;
+ instance->instance_oid.id[0] = result->oid;
+ instance->instance_oid.id[1] = 0;
+
+ instance->access = result->access;
+ instance->asn1_type = result->asn1_type;
+ instance->get_value = snmp_scalar_array_get_value;
+ instance->set_test = snmp_scalar_array_set_test;
+ instance->set_value = snmp_scalar_array_set_value;
+ instance->reference.const_ptr = result;
+
+ return SNMP_ERR_NOERROR;
+}
+
+static s16_t
+snmp_scalar_array_get_value(struct snmp_node_instance* instance, void* value)
+{
+ const struct snmp_scalar_array_node* array_node = (const struct snmp_scalar_array_node*)(const void*)instance->node;
+ const struct snmp_scalar_array_node_def* array_node_def = (const struct snmp_scalar_array_node_def*)instance->reference.const_ptr;
+
+ return array_node->get_value(array_node_def, value);
+}
+
+static snmp_err_t
+snmp_scalar_array_set_test(struct snmp_node_instance* instance, u16_t value_len, void* value)
+{
+ const struct snmp_scalar_array_node* array_node = (const struct snmp_scalar_array_node*)(const void*)instance->node;
+ const struct snmp_scalar_array_node_def* array_node_def = (const struct snmp_scalar_array_node_def*)instance->reference.const_ptr;
+
+ return array_node->set_test(array_node_def, value_len, value);
+}
+
+static snmp_err_t
+snmp_scalar_array_set_value(struct snmp_node_instance* instance, u16_t value_len, void* value)
+{
+ const struct snmp_scalar_array_node* array_node = (const struct snmp_scalar_array_node*)(const void*)instance->node;
+ const struct snmp_scalar_array_node_def* array_node_def = (const struct snmp_scalar_array_node_def*)instance->reference.const_ptr;
+
+ return array_node->set_value(array_node_def, value_len, value);
+}
+
+#endif /* LWIP_SNMP */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 11:09:03 +0000