blob: 6d9a67f0304d3f19ccfe0728dce9287fb072eaea [file] [log] [blame]
#include <endian.h>
#include <string.h>
#include "base.h"
int pack_pldm_header(const struct pldm_header_info *hdr,
struct pldm_msg_hdr *msg)
{
if (msg == NULL || hdr == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (hdr->msg_type != PLDM_RESPONSE && hdr->msg_type != PLDM_REQUEST &&
hdr->msg_type != PLDM_ASYNC_REQUEST_NOTIFY) {
return PLDM_ERROR_INVALID_DATA;
}
if (hdr->instance > PLDM_INSTANCE_MAX) {
return PLDM_ERROR_INVALID_DATA;
}
if (hdr->pldm_type > (PLDM_MAX_TYPES - 1)) {
return PLDM_ERROR_INVALID_PLDM_TYPE;
}
uint8_t datagram = (hdr->msg_type == PLDM_ASYNC_REQUEST_NOTIFY) ? 1 : 0;
if (hdr->msg_type == PLDM_RESPONSE) {
msg->request = PLDM_RESPONSE;
} else if (hdr->msg_type == PLDM_REQUEST ||
hdr->msg_type == PLDM_ASYNC_REQUEST_NOTIFY) {
msg->request = PLDM_REQUEST;
}
msg->datagram = datagram;
msg->reserved = 0;
msg->instance_id = hdr->instance;
msg->header_ver = 0;
msg->type = hdr->pldm_type;
msg->command = hdr->command;
return PLDM_SUCCESS;
}
int unpack_pldm_header(const struct pldm_msg_hdr *msg,
struct pldm_header_info *hdr)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (msg->request == PLDM_RESPONSE) {
hdr->msg_type = PLDM_RESPONSE;
} else {
hdr->msg_type =
msg->datagram ? PLDM_ASYNC_REQUEST_NOTIFY : PLDM_REQUEST;
}
hdr->instance = msg->instance_id;
hdr->pldm_type = msg->type;
hdr->command = msg->command;
return PLDM_SUCCESS;
}
int encode_get_types_req(uint8_t instance_id, struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
struct pldm_header_info header = {0};
header.instance = instance_id;
header.msg_type = PLDM_REQUEST;
header.command = PLDM_GET_PLDM_TYPES;
pack_pldm_header(&header, &(msg->hdr));
return PLDM_SUCCESS;
}
int encode_get_commands_req(uint8_t instance_id, uint8_t type, ver32_t version,
struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
struct pldm_header_info header = {0};
header.instance = instance_id;
header.msg_type = PLDM_REQUEST;
header.command = PLDM_GET_PLDM_COMMANDS;
pack_pldm_header(&header, &(msg->hdr));
struct pldm_get_commands_req *request =
(struct pldm_get_commands_req *)msg->payload;
request->type = type;
request->version = version;
return PLDM_SUCCESS;
}
int encode_get_types_resp(uint8_t instance_id, uint8_t completion_code,
const bitfield8_t *types, struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
struct pldm_get_types_resp *response =
(struct pldm_get_types_resp *)msg->payload;
response->completion_code = completion_code;
struct pldm_header_info header = {0};
header.instance = instance_id;
header.msg_type = PLDM_RESPONSE;
header.command = PLDM_GET_PLDM_TYPES;
pack_pldm_header(&header, &(msg->hdr));
if (response->completion_code == PLDM_SUCCESS) {
if (types == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
memcpy(response->types, &(types->byte), PLDM_MAX_TYPES / 8);
}
return PLDM_SUCCESS;
}
int decode_get_commands_req(const struct pldm_msg *msg, size_t payload_length,
uint8_t *type, ver32_t *version)
{
if (msg == NULL || type == NULL || version == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
if (payload_length != PLDM_GET_COMMANDS_REQ_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_get_commands_req *request =
(struct pldm_get_commands_req *)msg->payload;
*type = request->type;
*version = request->version;
return PLDM_SUCCESS;
}
int encode_get_commands_resp(uint8_t instance_id, uint8_t completion_code,
const bitfield8_t *commands, struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
struct pldm_get_commands_resp *response =
(struct pldm_get_commands_resp *)msg->payload;
response->completion_code = completion_code;
struct pldm_header_info header = {0};
header.instance = instance_id;
header.msg_type = PLDM_RESPONSE;
header.command = PLDM_GET_PLDM_COMMANDS;
pack_pldm_header(&header, &(msg->hdr));
if (response->completion_code == PLDM_SUCCESS) {
if (commands == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
memcpy(response->commands, &(commands->byte),
PLDM_MAX_CMDS_PER_TYPE / 8);
}
return PLDM_SUCCESS;
}
int decode_get_types_resp(const struct pldm_msg *msg, size_t payload_length,
uint8_t *completion_code, bitfield8_t *types)
{
if (msg == NULL || types == NULL || completion_code == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
*completion_code = msg->payload[0];
if (PLDM_SUCCESS != *completion_code) {
return PLDM_SUCCESS;
}
if (payload_length != PLDM_GET_TYPES_RESP_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_get_types_resp *response =
(struct pldm_get_types_resp *)msg->payload;
memcpy(&(types->byte), response->types, PLDM_MAX_TYPES / 8);
return PLDM_SUCCESS;
}
int decode_get_commands_resp(const struct pldm_msg *msg, size_t payload_length,
uint8_t *completion_code, bitfield8_t *commands)
{
if (msg == NULL || commands == NULL || completion_code == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
*completion_code = msg->payload[0];
if (PLDM_SUCCESS != *completion_code) {
return PLDM_SUCCESS;
}
if (payload_length != PLDM_GET_COMMANDS_RESP_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_get_commands_resp *response =
(struct pldm_get_commands_resp *)msg->payload;
memcpy(&(commands->byte), response->commands,
PLDM_MAX_CMDS_PER_TYPE / 8);
return PLDM_SUCCESS;
}
int encode_get_version_req(uint8_t instance_id, uint32_t transfer_handle,
uint8_t transfer_opflag, uint8_t type,
struct pldm_msg *msg)
{
struct pldm_header_info header = {0};
int rc = PLDM_SUCCESS;
if (NULL == msg) {
return PLDM_ERROR_INVALID_DATA;
}
header.msg_type = PLDM_REQUEST;
header.instance = instance_id;
header.pldm_type = PLDM_BASE;
header.command = PLDM_GET_PLDM_VERSION;
if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) {
return rc;
}
struct pldm_get_version_req *request =
(struct pldm_get_version_req *)msg->payload;
transfer_handle = htole32(transfer_handle);
request->transfer_handle = transfer_handle;
request->transfer_opflag = transfer_opflag;
request->type = type;
return PLDM_SUCCESS;
}
int encode_get_version_resp(uint8_t instance_id, uint8_t completion_code,
uint32_t next_transfer_handle,
uint8_t transfer_flag, const ver32_t *version_data,
size_t version_size, struct pldm_msg *msg)
{
struct pldm_header_info header = {0};
int rc = PLDM_SUCCESS;
struct pldm_get_version_resp *response =
(struct pldm_get_version_resp *)msg->payload;
response->completion_code = completion_code;
if (response->completion_code == PLDM_SUCCESS) {
header.msg_type = PLDM_RESPONSE;
header.instance = instance_id;
header.pldm_type = PLDM_BASE;
header.command = PLDM_GET_PLDM_VERSION;
if ((rc = pack_pldm_header(&header, &(msg->hdr))) >
PLDM_SUCCESS) {
return rc;
}
response->next_transfer_handle = htole32(next_transfer_handle);
response->transfer_flag = transfer_flag;
memcpy(response->version_data, (uint8_t *)version_data,
version_size);
}
return PLDM_SUCCESS;
}
int decode_get_version_req(const struct pldm_msg *msg, size_t payload_length,
uint32_t *transfer_handle, uint8_t *transfer_opflag,
uint8_t *type)
{
if (payload_length != PLDM_GET_VERSION_REQ_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_get_version_req *request =
(struct pldm_get_version_req *)msg->payload;
*transfer_handle = le32toh(request->transfer_handle);
*transfer_opflag = request->transfer_opflag;
*type = request->type;
return PLDM_SUCCESS;
}
int decode_get_version_resp(const struct pldm_msg *msg, size_t payload_length,
uint8_t *completion_code,
uint32_t *next_transfer_handle,
uint8_t *transfer_flag, ver32_t *version)
{
if (msg == NULL || next_transfer_handle == NULL ||
transfer_flag == NULL || completion_code == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
*completion_code = msg->payload[0];
if (PLDM_SUCCESS != *completion_code) {
return PLDM_SUCCESS;
}
if (payload_length < PLDM_GET_VERSION_RESP_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_get_version_resp *response =
(struct pldm_get_version_resp *)msg->payload;
*next_transfer_handle = le32toh(response->next_transfer_handle);
*transfer_flag = response->transfer_flag;
memcpy(version, (uint8_t *)response->version_data, sizeof(ver32_t));
return PLDM_SUCCESS;
}
int encode_get_tid_req(uint8_t instance_id, struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
struct pldm_header_info header = {0};
header.instance = instance_id;
header.msg_type = PLDM_REQUEST;
header.command = PLDM_GET_TID;
pack_pldm_header(&header, &(msg->hdr));
return PLDM_SUCCESS;
}
int encode_get_tid_resp(uint8_t instance_id, uint8_t completion_code,
uint8_t tid, struct pldm_msg *msg)
{
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
struct pldm_get_tid_resp *response =
(struct pldm_get_tid_resp *)msg->payload;
response->completion_code = completion_code;
struct pldm_header_info header = {0};
header.instance = instance_id;
header.msg_type = PLDM_RESPONSE;
header.command = PLDM_GET_TID;
pack_pldm_header(&header, &(msg->hdr));
response->tid = tid;
return PLDM_SUCCESS;
}
int decode_get_tid_resp(const struct pldm_msg *msg, size_t payload_length,
uint8_t *completion_code, uint8_t *tid)
{
if (msg == NULL || tid == NULL || completion_code == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
*completion_code = msg->payload[0];
if (PLDM_SUCCESS != *completion_code) {
return PLDM_SUCCESS;
}
if (payload_length != PLDM_GET_TID_RESP_BYTES) {
return PLDM_ERROR_INVALID_LENGTH;
}
struct pldm_get_tid_resp *response =
(struct pldm_get_tid_resp *)msg->payload;
*tid = response->tid;
return PLDM_SUCCESS;
}
int encode_cc_only_resp(uint8_t instance_id, uint8_t type, uint8_t command,
uint8_t cc, struct pldm_msg *msg)
{
struct pldm_header_info header = {0};
if (msg == NULL) {
return PLDM_ERROR_INVALID_DATA;
}
header.instance = instance_id;
header.msg_type = PLDM_RESPONSE;
header.pldm_type = type;
header.command = command;
int rc = pack_pldm_header(&header, &msg->hdr);
if (rc != PLDM_SUCCESS) {
return rc;
}
msg->payload[0] = cc;
return PLDM_SUCCESS;
}