gokulsanker | 138ceba | 2021-04-05 13:25:25 +0530 | [diff] [blame] | 1 | #include "firmware_update.h"
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gokulsanker | eca3e19 | 2021-04-05 14:57:41 +0530 | [diff] [blame] | 2 | #include <endian.h>
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gokulsanker | e1fb7a8 | 2021-04-05 16:09:29 +0530 | [diff] [blame] | 3 | #include <string.h>
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gokulsanker | 138ceba | 2021-04-05 13:25:25 +0530 | [diff] [blame] | 4 |
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| 5 | int encode_query_device_identifiers_req(uint8_t instance_id,
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| 6 | size_t payload_length,
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| 7 | struct pldm_msg *msg)
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| 8 | {
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| 9 | if (msg == NULL) {
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| 10 | return PLDM_ERROR_INVALID_DATA;
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| 11 | }
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| 12 |
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| 13 | if (payload_length != PLDM_QUERY_DEVICE_IDENTIFIERS_REQ_BYTES) {
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| 14 | return PLDM_ERROR_INVALID_LENGTH;
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| 15 | }
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| 16 |
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| 17 | return encode_pldm_header_only(PLDM_REQUEST, instance_id, PLDM_FWUP,
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| 18 | PLDM_QUERY_DEVICE_IDENTIFIERS, msg);
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| 19 | }
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gokulsanker | eca3e19 | 2021-04-05 14:57:41 +0530 | [diff] [blame] | 20 |
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| 21 | int decode_query_device_identifiers_resp(const struct pldm_msg *msg,
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| 22 | size_t payload_length,
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| 23 | uint8_t *completion_code,
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| 24 | uint32_t *device_identifiers_len,
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| 25 | uint8_t *descriptor_count,
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| 26 | uint8_t **descriptor_data)
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| 27 | {
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| 28 | if (msg == NULL || completion_code == NULL ||
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| 29 | device_identifiers_len == NULL || descriptor_count == NULL ||
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| 30 | descriptor_data == NULL) {
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| 31 | return PLDM_ERROR_INVALID_DATA;
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| 32 | }
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| 33 |
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| 34 | *completion_code = msg->payload[0];
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| 35 | if (PLDM_SUCCESS != *completion_code) {
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| 36 | return PLDM_SUCCESS;
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| 37 | }
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| 38 |
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| 39 | if (payload_length <
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| 40 | sizeof(struct pldm_query_device_identifiers_resp)) {
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| 41 | return PLDM_ERROR_INVALID_LENGTH;
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| 42 | }
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| 43 |
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| 44 | struct pldm_query_device_identifiers_resp *response =
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| 45 | (struct pldm_query_device_identifiers_resp *)msg->payload;
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| 46 | *device_identifiers_len = le32toh(response->device_identifiers_len);
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| 47 |
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| 48 | if (*device_identifiers_len < PLDM_FWUP_DEVICE_DESCRIPTOR_MIN_LEN) {
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| 49 | return PLDM_ERROR_INVALID_LENGTH;
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| 50 | }
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| 51 |
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| 52 | if (payload_length !=
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| 53 | sizeof(struct pldm_query_device_identifiers_resp) +
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| 54 | *device_identifiers_len) {
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| 55 | return PLDM_ERROR_INVALID_LENGTH;
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| 56 | }
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| 57 | *descriptor_count = response->descriptor_count;
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| 58 |
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| 59 | if (*descriptor_count == 0) {
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| 60 | return PLDM_ERROR_INVALID_DATA;
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| 61 | }
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gokulsanker | eca3e19 | 2021-04-05 14:57:41 +0530 | [diff] [blame] | 62 | *descriptor_data =
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| 63 | (uint8_t *)(msg->payload +
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| 64 | sizeof(struct pldm_query_device_identifiers_resp));
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| 65 | return PLDM_SUCCESS;
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| 66 | }
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gokulsanker | 981fbfb | 2021-04-05 15:17:25 +0530 | [diff] [blame] | 67 |
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| 68 | int encode_get_firmware_parameters_req(uint8_t instance_id,
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| 69 | size_t payload_length,
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| 70 | struct pldm_msg *msg)
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| 71 | {
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| 72 | if (msg == NULL) {
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| 73 | return PLDM_ERROR_INVALID_DATA;
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| 74 | }
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| 75 |
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| 76 | if (payload_length != PLDM_GET_FIRMWARE_PARAMETERS_REQ_BYTES) {
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| 77 | return PLDM_ERROR_INVALID_LENGTH;
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| 78 | }
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| 79 |
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| 80 | return encode_pldm_header_only(PLDM_REQUEST, instance_id, PLDM_FWUP,
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| 81 | PLDM_GET_FIRMWARE_PARAMETERS, msg);
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| 82 | }
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gokulsanker | 22fbb34 | 2021-04-05 15:55:06 +0530 | [diff] [blame] | 83 |
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| 84 | int decode_get_firmware_parameters_resp_comp_set_info(
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| 85 | const struct pldm_msg *msg, size_t payload_length,
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| 86 | struct pldm_get_firmware_parameters_resp *resp_data,
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| 87 | struct variable_field *active_comp_image_set_ver_str,
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| 88 | struct variable_field *pending_comp_image_set_ver_str)
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| 89 | {
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| 90 | if (msg == NULL || resp_data == NULL ||
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| 91 | active_comp_image_set_ver_str == NULL ||
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| 92 | pending_comp_image_set_ver_str == NULL) {
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| 93 |
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| 94 | return PLDM_ERROR_INVALID_DATA;
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| 95 | }
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| 96 |
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| 97 | if (payload_length < sizeof(struct pldm_get_firmware_parameters_resp)) {
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| 98 | return PLDM_ERROR_INVALID_LENGTH;
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| 99 | }
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| 100 |
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| 101 | struct pldm_get_firmware_parameters_resp *response =
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| 102 | (struct pldm_get_firmware_parameters_resp *)msg->payload;
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| 103 |
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| 104 | resp_data->completion_code = response->completion_code;
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| 105 |
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| 106 | if (PLDM_SUCCESS != resp_data->completion_code) {
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| 107 | return PLDM_SUCCESS;
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| 108 | }
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| 109 |
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| 110 | if (response->active_comp_image_set_ver_str_len == 0) {
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| 111 | return PLDM_ERROR_INVALID_DATA;
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| 112 | }
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| 113 |
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| 114 | size_t resp_len = sizeof(struct pldm_get_firmware_parameters_resp) +
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| 115 | response->active_comp_image_set_ver_str_len +
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| 116 | response->pending_comp_image_set_ver_str_len;
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| 117 |
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| 118 | if (payload_length != resp_len) {
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| 119 | return PLDM_ERROR_INVALID_LENGTH;
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| 120 | }
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| 121 |
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| 122 | resp_data->capabilities_during_update.value =
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| 123 | le32toh(response->capabilities_during_update.value);
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| 124 |
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| 125 | resp_data->comp_count = le16toh(response->comp_count);
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| 126 | if (resp_data->comp_count == 0) {
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| 127 | return PLDM_ERROR;
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| 128 | }
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| 129 |
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| 130 | resp_data->active_comp_image_set_ver_str_type =
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| 131 | response->active_comp_image_set_ver_str_type;
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| 132 | resp_data->active_comp_image_set_ver_str_len =
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| 133 | response->active_comp_image_set_ver_str_len;
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| 134 | resp_data->pending_comp_image_set_ver_str_type =
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| 135 | response->pending_comp_image_set_ver_str_type;
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| 136 | resp_data->pending_comp_image_set_ver_str_len =
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| 137 | response->pending_comp_image_set_ver_str_len;
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| 138 |
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| 139 | active_comp_image_set_ver_str->ptr =
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| 140 | msg->payload + sizeof(struct pldm_get_firmware_parameters_resp);
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| 141 | active_comp_image_set_ver_str->length =
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| 142 | resp_data->active_comp_image_set_ver_str_len;
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| 143 |
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| 144 | if (resp_data->pending_comp_image_set_ver_str_len != 0) {
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| 145 | pending_comp_image_set_ver_str->ptr =
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| 146 | msg->payload +
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| 147 | sizeof(struct pldm_get_firmware_parameters_resp) +
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| 148 | resp_data->active_comp_image_set_ver_str_len;
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| 149 | pending_comp_image_set_ver_str->length =
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| 150 | resp_data->pending_comp_image_set_ver_str_len;
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| 151 | } else {
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| 152 | pending_comp_image_set_ver_str->ptr = NULL;
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| 153 | pending_comp_image_set_ver_str->length = 0;
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| 154 | }
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| 155 |
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| 156 | return PLDM_SUCCESS;
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| 157 | }
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gokulsanker | e1fb7a8 | 2021-04-05 16:09:29 +0530 | [diff] [blame] | 158 |
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| 159 | int decode_get_firmware_parameters_resp_comp_entry(
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| 160 | const uint8_t *data, size_t length,
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| 161 | struct pldm_component_parameter_entry *component_data,
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| 162 | struct variable_field *active_comp_ver_str,
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| 163 | struct variable_field *pending_comp_ver_str)
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| 164 | {
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| 165 | if (data == NULL || component_data == NULL ||
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| 166 | active_comp_ver_str == NULL || pending_comp_ver_str == NULL) {
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| 167 | return PLDM_ERROR_INVALID_DATA;
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| 168 | }
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| 169 |
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| 170 | if (length < sizeof(struct pldm_component_parameter_entry)) {
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| 171 | return PLDM_ERROR_INVALID_LENGTH;
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| 172 | }
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| 173 |
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| 174 | struct pldm_component_parameter_entry *entry =
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| 175 | (struct pldm_component_parameter_entry *)(data);
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| 176 | if (entry->active_comp_ver_str_len == 0) {
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| 177 | return PLDM_ERROR_INVALID_LENGTH;
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| 178 | }
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| 179 |
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| 180 | size_t entry_length = sizeof(struct pldm_component_parameter_entry) +
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| 181 | entry->active_comp_ver_str_len +
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| 182 | entry->pending_comp_ver_str_len;
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| 183 |
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| 184 | if (length != entry_length) {
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| 185 | return PLDM_ERROR_INVALID_LENGTH;
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| 186 | }
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| 187 |
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| 188 | component_data->comp_classification =
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| 189 | le16toh(entry->comp_classification);
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| 190 | component_data->comp_identifier = le16toh(entry->comp_identifier);
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| 191 | component_data->comp_classification_index =
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| 192 | entry->comp_classification_index;
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| 193 | component_data->active_comp_comparison_stamp =
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| 194 | le32toh(entry->active_comp_comparison_stamp);
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| 195 | component_data->active_comp_ver_str_type =
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| 196 | entry->active_comp_ver_str_type;
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| 197 | component_data->active_comp_ver_str_len =
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| 198 | entry->active_comp_ver_str_len;
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| 199 | memcpy(component_data->active_comp_release_date,
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| 200 | entry->active_comp_release_date,
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| 201 | sizeof(entry->active_comp_release_date));
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| 202 | component_data->pending_comp_comparison_stamp =
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| 203 | le32toh(entry->pending_comp_comparison_stamp);
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| 204 | component_data->pending_comp_ver_str_type =
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| 205 | entry->pending_comp_ver_str_type;
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| 206 | component_data->pending_comp_ver_str_len =
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| 207 | entry->pending_comp_ver_str_len;
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| 208 | memcpy(component_data->pending_comp_release_date,
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| 209 | entry->pending_comp_release_date,
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| 210 | sizeof(entry->pending_comp_release_date));
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| 211 | component_data->comp_activation_methods.value =
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| 212 | le16toh(entry->comp_activation_methods.value);
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| 213 | component_data->capabilities_during_update.value =
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| 214 | le32toh(entry->capabilities_during_update.value);
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| 215 |
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| 216 | active_comp_ver_str->ptr =
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| 217 | data + sizeof(struct pldm_component_parameter_entry);
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| 218 | active_comp_ver_str->length = entry->active_comp_ver_str_len;
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| 219 |
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| 220 | if (entry->pending_comp_ver_str_len != 0) {
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| 221 |
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| 222 | pending_comp_ver_str->ptr =
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| 223 | data + sizeof(struct pldm_component_parameter_entry) +
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| 224 | entry->active_comp_ver_str_len;
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| 225 | pending_comp_ver_str->length = entry->pending_comp_ver_str_len;
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| 226 | } else {
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| 227 | pending_comp_ver_str->ptr = NULL;
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| 228 | pending_comp_ver_str->length = 0;
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| 229 | }
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| 230 | return PLDM_SUCCESS;
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| 231 | }
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