int
fill_ipmb_msg_hdr (uint8_t rs_addr,
uint8_t net_fn,
uint8_t rs_lun,
uint8_t rq_addr,
uint8_t rq_lun,
uint8_t rq_seq,
fiid_obj_t obj_ipmb_msg_hdr)
{
uint8_t checksum_buf[1024];
int checksum_len;
uint8_t checksum;
if (!IPMI_NET_FN_VALID (net_fn)
|| !IPMI_BMC_LUN_VALID (rs_lun)
|| !IPMI_BMC_LUN_VALID (rq_lun)
|| (rq_seq > IPMI_IPMB_REQUESTER_SEQUENCE_NUMBER_MAX)
|| !fiid_obj_valid (obj_ipmb_msg_hdr))
{
SET_ERRNO (EINVAL);
return (-1);
}
if (FIID_OBJ_TEMPLATE_COMPARE (obj_ipmb_msg_hdr, tmpl_ipmb_msg_hdr_rq) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
FILL_FIID_OBJ_CLEAR (obj_ipmb_msg_hdr);
FILL_FIID_OBJ_SET (obj_ipmb_msg_hdr, "rs_addr", rs_addr);
FILL_FIID_OBJ_SET (obj_ipmb_msg_hdr, "net_fn", net_fn);
FILL_FIID_OBJ_SET (obj_ipmb_msg_hdr, "rs_lun", rs_lun);
if ((checksum_len = fiid_obj_get_block (obj_ipmb_msg_hdr,
"rs_addr",
"net_fn",
checksum_buf,
1024)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_ipmb_msg_hdr);
return (-1);
}
checksum = ipmi_checksum (checksum_buf, checksum_len);
FILL_FIID_OBJ_SET (obj_ipmb_msg_hdr, "checksum1", checksum);
FILL_FIID_OBJ_SET (obj_ipmb_msg_hdr, "rq_addr", rq_addr);
FILL_FIID_OBJ_SET (obj_ipmb_msg_hdr, "rq_lun", rq_lun);
FILL_FIID_OBJ_SET (obj_ipmb_msg_hdr, "rq_seq", rq_seq);
return (0);
}
int
assemble_ipmi_ipmb_msg (fiid_obj_t obj_ipmb_msg_hdr,
fiid_obj_t obj_cmd,
fiid_obj_t obj_ipmb_msg,
unsigned int flags)
{
uint8_t buf[IPMB_MAX_LEN+1];
unsigned int indx = 0;
uint8_t *checksum_data_ptr = NULL;
unsigned int checksum_data_count = 0;
unsigned int required_len = 0;
fiid_obj_t obj_ipmb_msg_trlr = NULL;
uint8_t checksum;
int len, rv = -1;
unsigned int flags_mask = 0;
if (!fiid_obj_valid (obj_ipmb_msg_hdr)
|| !fiid_obj_valid (obj_cmd)
|| !fiid_obj_valid (obj_ipmb_msg)
|| (flags & ~flags_mask))
{
SET_ERRNO (EINVAL);
return (-1);
}
if (FIID_OBJ_TEMPLATE_COMPARE (obj_ipmb_msg_hdr, tmpl_ipmb_msg_hdr_rq) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
if (FIID_OBJ_TEMPLATE_COMPARE (obj_ipmb_msg, tmpl_ipmb_msg) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
if (FIID_OBJ_PACKET_VALID (obj_ipmb_msg_hdr) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_ipmb_msg_hdr);
return (-1);
}
if (FIID_OBJ_PACKET_VALID (obj_cmd) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_cmd);
return (-1);
}
if ((len = fiid_template_len_bytes (tmpl_ipmb_msg_hdr_rq)) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
required_len += len;
if ((len = fiid_obj_len_bytes (obj_cmd)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_cmd);
return (-1);
}
required_len += len;
if ((len = fiid_template_len_bytes (tmpl_ipmb_msg_trlr)) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
required_len += len;
if (IPMB_MAX_LEN < required_len)
{
SET_ERRNO (EMSGSIZE);
return (-1);
}
memset (buf, '\0', IPMB_MAX_LEN+1);
if ((len = fiid_obj_get_block (obj_ipmb_msg_hdr,
"rs_addr",
"checksum1",
buf + indx,
IPMB_MAX_LEN - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_ipmb_msg_hdr);
goto cleanup;
}
indx += len;
checksum_data_ptr = (buf + indx);
if ((len = fiid_obj_get_block (obj_ipmb_msg_hdr,
"rq_addr",
"rq_seq",
buf + indx,
IPMB_MAX_LEN - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_ipmb_msg_hdr);
goto cleanup;
}
indx += len;
checksum_data_count += len;
if ((len = fiid_obj_get_all (obj_cmd, buf + indx, IPMB_MAX_LEN - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_cmd);
goto cleanup;
}
indx += len;
checksum_data_count += len;
if (!(obj_ipmb_msg_trlr = fiid_obj_create (tmpl_ipmb_msg_trlr)))
{
ERRNO_TRACE (errno);
goto cleanup;
}
checksum = ipmi_checksum (checksum_data_ptr, checksum_data_count);
if (fiid_obj_set_all (obj_ipmb_msg_trlr, &checksum, sizeof (checksum)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_ipmb_msg_trlr);
goto cleanup;
}
if ((len = fiid_obj_get_all (obj_ipmb_msg_trlr, buf + indx, IPMB_MAX_LEN - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_ipmb_msg_trlr);
goto cleanup;
}
indx += len;
if ((len = fiid_obj_set_all (obj_ipmb_msg, buf, indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_ipmb_msg);
goto cleanup;
}
rv = len;
cleanup:
fiid_obj_destroy (obj_ipmb_msg_trlr);
return (rv);
}
int
assemble_ipmi_lan_pkt (fiid_obj_t obj_rmcp_hdr,
fiid_obj_t obj_lan_session_hdr,
fiid_obj_t obj_lan_msg_hdr,
fiid_obj_t obj_cmd,
const void *authentication_code_data,
unsigned int authentication_code_data_len,
void *pkt,
unsigned int pkt_len,
unsigned int flags)
{
uint8_t authentication_type;
uint64_t val;
unsigned int indx = 0;
int required_len;
void *authentication_code_field_ptr = NULL;
void *checksum_data_ptr = NULL;
void *msg_data_ptr = NULL;
void *ipmi_msg_len_ptr = NULL;
unsigned int msg_data_count = 0;
unsigned int checksum_data_count = 0;
uint8_t ipmi_msg_len;
fiid_obj_t obj_lan_msg_trlr = NULL;
uint8_t pwbuf[IPMI_1_5_MAX_PASSWORD_LENGTH];
uint8_t checksum;
int len, rv = -1;
unsigned int flags_mask = 0;
if (!fiid_obj_valid (obj_rmcp_hdr)
|| !fiid_obj_valid (obj_lan_session_hdr)
|| !fiid_obj_valid (obj_lan_msg_hdr)
|| !fiid_obj_valid (obj_cmd)
|| (authentication_code_data && authentication_code_data_len > IPMI_1_5_MAX_PASSWORD_LENGTH)
|| !pkt
|| (flags & ~flags_mask))
{
SET_ERRNO (EINVAL);
return (-1);
}
if (FIID_OBJ_TEMPLATE_COMPARE (obj_rmcp_hdr, tmpl_rmcp_hdr) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
if (FIID_OBJ_TEMPLATE_COMPARE (obj_lan_session_hdr, tmpl_lan_session_hdr) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
if (FIID_OBJ_TEMPLATE_COMPARE (obj_lan_msg_hdr, tmpl_lan_msg_hdr_rq) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
if (FIID_OBJ_PACKET_VALID (obj_rmcp_hdr) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_rmcp_hdr);
return (-1);
}
/*
* ipmi_msg_len is calculated in this function, so we can't use
* fiid_obj_packet_valid() on obj_lan_session_hdr b/c ipmi_msg_len
* is probably not set yet.
*/
if (FIID_OBJ_PACKET_VALID (obj_lan_msg_hdr) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_msg_hdr);
return (-1);
}
if (FIID_OBJ_PACKET_VALID (obj_cmd) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_cmd);
return (-1);
}
if (FIID_OBJ_GET (obj_lan_session_hdr,
"authentication_type",
&val) < 0)
{
ERRNO_TRACE (errno);
return (-1);
}
authentication_type = val;
if (authentication_type != IPMI_AUTHENTICATION_TYPE_NONE
&& authentication_type != IPMI_AUTHENTICATION_TYPE_MD2
&& authentication_type != IPMI_AUTHENTICATION_TYPE_MD5
&& authentication_type != IPMI_AUTHENTICATION_TYPE_STRAIGHT_PASSWORD_KEY)
{
SET_ERRNO (EINVAL);
return (-1);
}
/* no need for overflow checks, handled w/ _ipmi_lan_pkt_rq_min_size check */
required_len = _ipmi_lan_pkt_rq_min_size (authentication_type, obj_cmd);
if (pkt_len < required_len)
{
SET_ERRNO (EMSGSIZE);
return (-1);
}
memset (pkt, 0, pkt_len);
if ((len = fiid_obj_get_all (obj_rmcp_hdr, pkt + indx, pkt_len - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_rmcp_hdr);
goto cleanup;
}
indx += len;
if ((len = fiid_obj_get_block (obj_lan_session_hdr,
"authentication_type",
"session_id",
pkt + indx,
pkt_len - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_session_hdr);
goto cleanup;
}
indx += len;
/* authentication_code generated last. Save pointers for later calculation */
if (authentication_type != IPMI_AUTHENTICATION_TYPE_NONE)
{
authentication_code_field_ptr = (pkt + indx);
indx += IPMI_1_5_MAX_PASSWORD_LENGTH;
}
ipmi_msg_len_ptr = (pkt + indx);
if ((len = fiid_template_field_len_bytes (tmpl_lan_session_hdr, "ipmi_msg_len")) < 0)
{
ERRNO_TRACE (errno);
goto cleanup;
}
if (len != 1)
{
SET_ERRNO (EINVAL);
goto cleanup;
}
indx += len;
msg_data_ptr = (pkt + indx);
if ((len = fiid_obj_get_block (obj_lan_msg_hdr,
"rs_addr",
"checksum1",
pkt + indx,
pkt_len - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_msg_hdr);
goto cleanup;
}
indx += len;
msg_data_count += len;
checksum_data_ptr = (pkt + indx);
if ((len = fiid_obj_get_block (obj_lan_msg_hdr,
"rq_addr",
"rq_seq",
pkt + indx,
pkt_len - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_msg_hdr);
goto cleanup;
}
indx += len;
msg_data_count += len;
checksum_data_count += len;
if ((len = fiid_obj_get_all (obj_cmd, pkt + indx, pkt_len - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_cmd);
goto cleanup;
}
indx += len;
msg_data_count += len;
checksum_data_count += len;
if (!(obj_lan_msg_trlr = fiid_obj_create (tmpl_lan_msg_trlr)))
{
ERRNO_TRACE (errno);
goto cleanup;
}
checksum = ipmi_checksum (checksum_data_ptr, checksum_data_count);
if (fiid_obj_set_all (obj_lan_msg_trlr, &checksum, sizeof (checksum)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_msg_trlr);
goto cleanup;
}
if ((len = fiid_obj_get_all (obj_lan_msg_trlr, pkt + indx, pkt_len - indx)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_msg_trlr);
goto cleanup;
}
indx += len;
msg_data_count += len;
/* ipmi_msg_len done after message length is computed */
ipmi_msg_len = msg_data_count;
memcpy (ipmi_msg_len_ptr,
&ipmi_msg_len,
sizeof (ipmi_msg_len));
/* Auth code must be done last, some authentication like md2 and md5
* require all fields, including checksums, to be calculated
* beforehand
*/
if (authentication_type != IPMI_AUTHENTICATION_TYPE_NONE)
{
int authentication_len;
memset (pwbuf, '\0', IPMI_1_5_MAX_PASSWORD_LENGTH);
if ((authentication_len = fiid_obj_field_len_bytes (obj_lan_session_hdr,
"authentication_code")) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_session_hdr);
goto cleanup;
}
if (authentication_len)
{
if (fiid_obj_get_data (obj_lan_session_hdr,
"authentication_code",
pwbuf,
IPMI_1_5_MAX_PASSWORD_LENGTH) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_session_hdr);
goto cleanup;
}
memcpy (authentication_code_field_ptr,
pwbuf,
IPMI_1_5_MAX_PASSWORD_LENGTH);
}
else
{
if (authentication_code_data)
memcpy (pwbuf,
authentication_code_data,
authentication_code_data_len);
if (authentication_type == IPMI_AUTHENTICATION_TYPE_STRAIGHT_PASSWORD_KEY)
{
memcpy (authentication_code_field_ptr,
pwbuf,
IPMI_1_5_MAX_PASSWORD_LENGTH);
}
else /* IPMI_AUTHENTICATION_TYPE_MD2 || IPMI_AUTHENTICATION_TYPE_MD5 */
{
uint8_t session_id_buf[1024];
uint8_t session_sequence_number_buf[1024];
int session_id_len, session_sequence_number_len;
if ((session_id_len = fiid_obj_get_data (obj_lan_session_hdr,
"session_id",
session_id_buf,
1024)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_session_hdr);
goto cleanup;
}
if ((session_sequence_number_len = fiid_obj_get_data (obj_lan_session_hdr,
"session_sequence_number",
session_sequence_number_buf,
1024)) < 0)
{
FIID_OBJECT_ERROR_TO_ERRNO (obj_lan_session_hdr);
goto cleanup;
}
if (authentication_type == IPMI_AUTHENTICATION_TYPE_MD2)
{
md2_t ctx;
uint8_t digest[MD2_DIGEST_LENGTH];
assert (IPMI_1_5_MAX_PASSWORD_LENGTH == MD2_DIGEST_LENGTH);
md2_init (&ctx);
md2_update_data (&ctx, pwbuf, IPMI_1_5_MAX_PASSWORD_LENGTH);
md2_update_data (&ctx, session_id_buf, session_id_len);
md2_update_data (&ctx, msg_data_ptr, msg_data_count);
md2_update_data (&ctx, session_sequence_number_buf, session_sequence_number_len);
md2_update_data (&ctx, pwbuf, IPMI_1_5_MAX_PASSWORD_LENGTH);
md2_finish (&ctx, digest, MD2_DIGEST_LENGTH);
md2_init (&ctx);
memcpy (authentication_code_field_ptr, digest, IPMI_1_5_MAX_PASSWORD_LENGTH);
secure_memset (digest, '\0', MD2_DIGEST_LENGTH);
}
else if (authentication_type == IPMI_AUTHENTICATION_TYPE_MD5)
{
md5_t ctx;
uint8_t digest[MD5_DIGEST_LENGTH];
assert (IPMI_1_5_MAX_PASSWORD_LENGTH == MD5_DIGEST_LENGTH);
md5_init (&ctx);
md5_update_data (&ctx, pwbuf, IPMI_1_5_MAX_PASSWORD_LENGTH);
md5_update_data (&ctx, session_id_buf, session_id_len);
md5_update_data (&ctx, msg_data_ptr, msg_data_count);
md5_update_data (&ctx, session_sequence_number_buf, session_sequence_number_len);
md5_update_data (&ctx, pwbuf, IPMI_1_5_MAX_PASSWORD_LENGTH);
md5_finish (&ctx, digest, MD5_DIGEST_LENGTH);
md5_init (&ctx);
memcpy (authentication_code_field_ptr, digest, IPMI_1_5_MAX_PASSWORD_LENGTH);
secure_memset (digest, '\0', MD5_DIGEST_LENGTH);
}
}
}
}
if (indx > INT_MAX)
{
SET_ERRNO (EMSGSIZE);
goto cleanup;
}
rv = indx;
cleanup:
if (rv < 0)
secure_memset (pkt, '\0', pkt_len);
fiid_obj_destroy (obj_lan_msg_trlr);
secure_memset (pwbuf, '\0', IPMI_1_5_MAX_PASSWORD_LENGTH);
return (rv);
}
int
ipmi_sdr_cache_open (ipmi_sdr_ctx_t ctx,
ipmi_ctx_t ipmi_ctx,
const char *filename)
{
uint8_t sdr_version;
uint16_t record_count;
uint32_t most_recent_addition_timestamp, most_recent_erase_timestamp;
char sdr_version_buf;
char sdr_cache_magic_buf[4];
char sdr_cache_version_buf[4];
char record_count_buf[2];
char most_recent_addition_timestamp_buf[4];
char most_recent_erase_timestamp_buf[4];
struct stat stat_buf;
if (!ctx || ctx->magic != IPMI_SDR_CTX_MAGIC)
{
ERR_TRACE (ipmi_sdr_ctx_errormsg (ctx), ipmi_sdr_ctx_errnum (ctx));
return (-1);
}
if (!filename)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_PARAMETERS);
return (-1);
}
if (ctx->operation != IPMI_SDR_OPERATION_UNINITIALIZED)
{
if (ctx->operation == IPMI_SDR_OPERATION_READ_CACHE)
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_READ_ALREADY_INITIALIZED);
else
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_INTERNAL_ERROR);
return (-1);
}
if (stat (filename, &stat_buf) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
goto cleanup;
}
/* File Size must be atleast magic_buf + file_version_buf +
* sdr_version_buf + record_count_buf +
* most_recent_addition_timestamp_buf +
* most_recent_erase_timestamp-buf in size.
*/
ctx->file_size = stat_buf.st_size;
if (ctx->file_size < (4 + 4 + 1 + 2 + 4 + 4))
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_INVALID);
goto cleanup;
}
if ((ctx->fd = open (filename, O_RDONLY)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
goto cleanup;
}
ctx->sdr_cache = (uint8_t *)mmap (NULL,
ctx->file_size,
PROT_READ,
MAP_PRIVATE,
ctx->fd,
0);
if (!ctx->sdr_cache || ctx->sdr_cache == ((void *) -1))
{
ERRNO_TRACE (errno);
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
goto cleanup;
}
memcpy (sdr_cache_magic_buf, ctx->sdr_cache + ctx->records_start_offset, 4);
ctx->records_start_offset += 4;
memcpy (sdr_cache_version_buf, ctx->sdr_cache + ctx->records_start_offset, 4);
ctx->records_start_offset += 4;
memcpy (&sdr_version_buf, ctx->sdr_cache + ctx->records_start_offset, 1);
ctx->records_start_offset += 1;
memcpy (record_count_buf, ctx->sdr_cache + ctx->records_start_offset, 2);
ctx->records_start_offset += 2;
memcpy (most_recent_addition_timestamp_buf, ctx->sdr_cache + ctx->records_start_offset, 4);
ctx->records_start_offset += 4;
memcpy (most_recent_erase_timestamp_buf, ctx->sdr_cache + ctx->records_start_offset, 4);
ctx->records_start_offset += 4;
if ((uint8_t)sdr_cache_magic_buf[0] != IPMI_SDR_CACHE_FILE_MAGIC_0
|| (uint8_t)sdr_cache_magic_buf[1] != IPMI_SDR_CACHE_FILE_MAGIC_1
|| (uint8_t)sdr_cache_magic_buf[2] != IPMI_SDR_CACHE_FILE_MAGIC_2
|| (uint8_t)sdr_cache_magic_buf[3] != IPMI_SDR_CACHE_FILE_MAGIC_3)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_INVALID);
goto cleanup;
}
if (((uint8_t)sdr_cache_version_buf[0] != IPMI_SDR_CACHE_FILE_VERSION_1_0
|| (uint8_t)sdr_cache_version_buf[1] != IPMI_SDR_CACHE_FILE_VERSION_1_1
|| (uint8_t)sdr_cache_version_buf[2] != IPMI_SDR_CACHE_FILE_VERSION_1_2
|| (uint8_t)sdr_cache_version_buf[3] != IPMI_SDR_CACHE_FILE_VERSION_1_3)
&& ((uint8_t)sdr_cache_version_buf[0] != IPMI_SDR_CACHE_FILE_VERSION_1_2_0
|| (uint8_t)sdr_cache_version_buf[1] != IPMI_SDR_CACHE_FILE_VERSION_1_2_1
|| (uint8_t)sdr_cache_version_buf[2] != IPMI_SDR_CACHE_FILE_VERSION_1_2_2
|| (uint8_t)sdr_cache_version_buf[3] != IPMI_SDR_CACHE_FILE_VERSION_1_2_3))
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_INVALID);
goto cleanup;
}
ctx->sdr_version = (uint8_t)sdr_version_buf;
ctx->record_count = ((uint16_t)record_count_buf[0] & 0xFF);
ctx->record_count |= ((uint16_t)record_count_buf[1] & 0xFF) << 8;
ctx->most_recent_addition_timestamp = ((uint32_t)most_recent_addition_timestamp_buf[0] & 0xFF);
ctx->most_recent_addition_timestamp |= ((uint32_t)most_recent_addition_timestamp_buf[1] & 0xFF) << 8;
ctx->most_recent_addition_timestamp |= ((uint32_t)most_recent_addition_timestamp_buf[2] & 0xFF) << 16;
ctx->most_recent_addition_timestamp |= ((uint32_t)most_recent_addition_timestamp_buf[3] & 0xFF) << 24;
ctx->most_recent_erase_timestamp = ((uint32_t)most_recent_erase_timestamp_buf[0] & 0xFF);
ctx->most_recent_erase_timestamp |= ((uint32_t)most_recent_erase_timestamp_buf[1] & 0xFF) << 8;
ctx->most_recent_erase_timestamp |= ((uint32_t)most_recent_erase_timestamp_buf[2] & 0xFF) << 16;
ctx->most_recent_erase_timestamp |= ((uint32_t)most_recent_erase_timestamp_buf[3] & 0xFF) << 24;
if (ipmi_ctx)
{
if (sdr_info (ctx,
ipmi_ctx,
&sdr_version,
&record_count,
&most_recent_addition_timestamp,
&most_recent_erase_timestamp) < 0)
goto cleanup;
if (ctx->sdr_version != sdr_version
|| ctx->most_recent_addition_timestamp != most_recent_addition_timestamp
|| ctx->most_recent_erase_timestamp != most_recent_erase_timestamp)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_OUT_OF_DATE);
goto cleanup;
}
}
if ((uint8_t)sdr_cache_version_buf[0] == IPMI_SDR_CACHE_FILE_VERSION_1_2_0
&& (uint8_t)sdr_cache_version_buf[1] == IPMI_SDR_CACHE_FILE_VERSION_1_2_1
&& (uint8_t)sdr_cache_version_buf[2] == IPMI_SDR_CACHE_FILE_VERSION_1_2_2
&& (uint8_t)sdr_cache_version_buf[3] == IPMI_SDR_CACHE_FILE_VERSION_1_2_3)
{
uint8_t header_checksum_buf[512];
unsigned int header_checksum_buf_len = 0;
uint8_t header_checksum, header_checksum_cache;
uint8_t trailer_checksum, trailer_checksum_cache;
char total_bytes_written_buf[4];
unsigned int total_bytes_written;
unsigned int header_bytes_len;
unsigned int trailer_bytes_len;
/* File Size must be atleast magic_buf + file_version_buf +
* sdr_version_buf + record_count_buf +
* most_recent_addition_timestamp_buf +
* most_recent_erase_timestamp-buf + header_checksum + trailer
* bytes written + trailer records checksum.
*/
header_bytes_len = 4 + 4 + 1 + 2 + 4 + 4 + 1;
trailer_bytes_len = 4 + 1;
if (ctx->file_size < (header_bytes_len + trailer_bytes_len))
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_INVALID);
goto cleanup;
}
memcpy (&header_checksum_cache, ctx->sdr_cache + ctx->records_start_offset, 1);
ctx->records_start_offset += 1;
memcpy(&header_checksum_buf[header_checksum_buf_len], sdr_cache_magic_buf, 4);
header_checksum_buf_len += 4;
memcpy(&header_checksum_buf[header_checksum_buf_len], sdr_cache_version_buf, 4);
header_checksum_buf_len += 4;
memcpy(&header_checksum_buf[header_checksum_buf_len], &sdr_version_buf, 1);
header_checksum_buf_len += 1;
memcpy(&header_checksum_buf[header_checksum_buf_len], record_count_buf, 2);
header_checksum_buf_len += 2;
memcpy(&header_checksum_buf[header_checksum_buf_len], most_recent_addition_timestamp_buf, 4);
header_checksum_buf_len += 4;
memcpy(&header_checksum_buf[header_checksum_buf_len], most_recent_erase_timestamp_buf, 4);
header_checksum_buf_len += 4;
header_checksum = ipmi_checksum (header_checksum_buf, header_checksum_buf_len);
if (header_checksum != header_checksum_cache)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_INVALID);
goto cleanup;
}
/* total_bytes_written is written before checksum */
/* checksum of records is last byte written */
memcpy (total_bytes_written_buf, ctx->sdr_cache + ctx->file_size - 5, 4);
memcpy (&trailer_checksum_cache, ctx->sdr_cache + ctx->file_size - 1, 1);
total_bytes_written = ((uint32_t)total_bytes_written_buf[0] & 0xFF);
total_bytes_written |= ((uint32_t)total_bytes_written_buf[1] & 0xFF) << 8;
total_bytes_written |= ((uint32_t)total_bytes_written_buf[2] & 0xFF) << 16;
total_bytes_written |= ((uint32_t)total_bytes_written_buf[3] & 0xFF) << 24;
if (total_bytes_written != ctx->file_size)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_INVALID);
goto cleanup;
}
/* -1 for checksum */
trailer_checksum = ipmi_checksum (ctx->sdr_cache + ctx->records_start_offset,
total_bytes_written - ctx->records_start_offset - 1);
if (trailer_checksum != trailer_checksum_cache)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_INVALID);
goto cleanup;
}
ctx->records_end_offset = ctx->file_size - trailer_bytes_len;
}
else /* (uint8_t)sdr_cache_version_buf[0] == IPMI_SDR_CACHE_FILE_VERSION_1_0
&& (uint8_t)sdr_cache_version_buf[1] == IPMI_SDR_CACHE_FILE_VERSION_1_1
&& (uint8_t)sdr_cache_version_buf[2] == IPMI_SDR_CACHE_FILE_VERSION_1_2
&& (uint8_t)sdr_cache_version_buf[3] == IPMI_SDR_CACHE_FILE_VERSION_1_3 */
ctx->records_end_offset = ctx->file_size;
_sdr_set_current_offset (ctx, ctx->records_start_offset);
ctx->operation = IPMI_SDR_OPERATION_READ_CACHE;
ctx->errnum = IPMI_SDR_ERR_SUCCESS;
return (0);
cleanup:
/* ignore potential error, cleanup path */
if (ctx->fd >= 0)
close (ctx->fd);
/* ignore potential error, cleanup path */
if (ctx->sdr_cache)
munmap ((void *)ctx->sdr_cache, ctx->file_size);
sdr_init_ctx (ctx);
return (-1);
}
static int
_sdr_cache_header_write (ipmi_sdr_ctx_t ctx,
ipmi_ctx_t ipmi_ctx,
int fd,
unsigned int *total_bytes_written,
uint8_t sdr_version,
uint16_t record_count,
uint32_t most_recent_addition_timestamp,
uint32_t most_recent_erase_timestamp)
{
char sdr_cache_magic_buf[4];
char sdr_cache_version_buf[4];
char record_count_buf[2];
char most_recent_addition_timestamp_buf[4];
char most_recent_erase_timestamp_buf[4];
uint8_t header_checksum_buf[512];
unsigned int header_checksum_buf_len = 0;
uint8_t header_checksum;
ssize_t n;
assert (ctx);
assert (ctx->magic == IPMI_SDR_CTX_MAGIC);
assert (ipmi_ctx);
assert (fd);
assert (total_bytes_written);
sdr_cache_magic_buf[0] = IPMI_SDR_CACHE_FILE_MAGIC_0;
sdr_cache_magic_buf[1] = IPMI_SDR_CACHE_FILE_MAGIC_1;
sdr_cache_magic_buf[2] = IPMI_SDR_CACHE_FILE_MAGIC_2;
sdr_cache_magic_buf[3] = IPMI_SDR_CACHE_FILE_MAGIC_3;
if ((n = fd_write_n (fd, sdr_cache_magic_buf, 4)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
return (-1);
}
if (n != 4)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
return (-1);
}
(*total_bytes_written) += 4;
memcpy(&header_checksum_buf[header_checksum_buf_len], sdr_cache_magic_buf, 4);
header_checksum_buf_len += 4;
sdr_cache_version_buf[0] = IPMI_SDR_CACHE_FILE_VERSION_1_2_0;
sdr_cache_version_buf[1] = IPMI_SDR_CACHE_FILE_VERSION_1_2_1;
sdr_cache_version_buf[2] = IPMI_SDR_CACHE_FILE_VERSION_1_2_2;
sdr_cache_version_buf[3] = IPMI_SDR_CACHE_FILE_VERSION_1_2_3;
if ((n = fd_write_n (fd, sdr_cache_version_buf, 4)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
return (-1);
}
if (n != 4)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
return (-1);
}
(*total_bytes_written) += 4;
memcpy(&header_checksum_buf[header_checksum_buf_len], sdr_cache_version_buf, 4);
header_checksum_buf_len += 4;
if ((n = fd_write_n (fd, (char *)&sdr_version, 1)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
return (-1);
}
if (n != 1)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
return (-1);
}
(*total_bytes_written) += 1;
memcpy(&header_checksum_buf[header_checksum_buf_len], &sdr_version, 1);
header_checksum_buf_len += 1;
/* Store record count little-endian */
record_count_buf[0] = (record_count & 0x00FF);
record_count_buf[1] = (record_count & 0xFF00) >> 8;
if ((n = fd_write_n (fd, record_count_buf, 2)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
return (-1);
}
if (n != 2)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
return (-1);
}
(*total_bytes_written) += 2;
memcpy(&header_checksum_buf[header_checksum_buf_len], record_count_buf, 2);
header_checksum_buf_len += 2;
/* Store most recent addition timestamp little-endian */
most_recent_addition_timestamp_buf[0] = (most_recent_addition_timestamp & 0x000000FF);
most_recent_addition_timestamp_buf[1] = (most_recent_addition_timestamp & 0x0000FF00) >> 8;
most_recent_addition_timestamp_buf[2] = (most_recent_addition_timestamp & 0x00FF0000) >> 16;
most_recent_addition_timestamp_buf[3] = (most_recent_addition_timestamp & 0xFF000000) >> 24;
if ((n = fd_write_n (fd, most_recent_addition_timestamp_buf, 4)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
return (-1);
}
if (n != 4)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
return (-1);
}
(*total_bytes_written) += 4;
memcpy(&header_checksum_buf[header_checksum_buf_len], most_recent_addition_timestamp_buf, 4);
header_checksum_buf_len += 4;
/* Store most recent erase timestamp little-endian */
most_recent_erase_timestamp_buf[0] = (most_recent_erase_timestamp & 0x000000FF);
most_recent_erase_timestamp_buf[1] = (most_recent_erase_timestamp & 0x0000FF00) >> 8;
most_recent_erase_timestamp_buf[2] = (most_recent_erase_timestamp & 0x00FF0000) >> 16;
most_recent_erase_timestamp_buf[3] = (most_recent_erase_timestamp & 0xFF000000) >> 24;
if ((n = fd_write_n (fd, most_recent_erase_timestamp_buf, 4)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
return (-1);
}
if (n != 4)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
return (-1);
}
(*total_bytes_written) += 4;
memcpy(&header_checksum_buf[header_checksum_buf_len], most_recent_erase_timestamp_buf, 4);
header_checksum_buf_len += 4;
header_checksum = ipmi_checksum (header_checksum_buf, header_checksum_buf_len);
if ((n = fd_write_n (fd, (char *)&header_checksum, 1)) < 0)
{
SDR_ERRNO_TO_SDR_ERRNUM (ctx, errno);
return (-1);
}
if (n != 1)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_SYSTEM_ERROR);
return (-1);
}
(*total_bytes_written) += 1;
return (0);
}
