void
Fiid_obj_clear_field(fiid_obj_t obj, char *field)
{
int8_t rv;
assert(fiid_obj_valid(obj) && field);
if ((rv = fiid_obj_clear_field(obj, field)) < 0)
ierr_exit("Fiid_obj_clear_field: %s", strerror(errno));
}
int
ipmiconsole_check_rakp_4_integrity_check_value (ipmiconsole_ctx_t c, ipmiconsole_packet_type_t p)
{
uint8_t managed_system_guid[IPMI_MANAGED_SYSTEM_GUID_LENGTH];
int managed_system_guid_len;
uint32_t managed_system_session_id;
uint8_t authentication_algorithm = 0;
uint64_t val;
int rv;
assert (c);
assert (c->magic == IPMICONSOLE_CTX_MAGIC);
assert (p == IPMICONSOLE_PACKET_TYPE_RAKP_MESSAGE_4);
/* IPMI Workaround
*
* Intel IPMI 2.0 implementations respond with the integrity check
* value based on the integrity algorithm rather than the
* authentication algorithm.
*/
if (c->config.workaround_flags & IPMICONSOLE_WORKAROUND_INTEL_2_0_SESSION)
{
if (c->config.integrity_algorithm == IPMI_INTEGRITY_ALGORITHM_NONE)
authentication_algorithm = IPMI_AUTHENTICATION_ALGORITHM_RAKP_NONE;
else if (c->config.integrity_algorithm == IPMI_INTEGRITY_ALGORITHM_HMAC_SHA1_96)
authentication_algorithm = IPMI_AUTHENTICATION_ALGORITHM_RAKP_HMAC_SHA1;
else if (c->config.integrity_algorithm == IPMI_INTEGRITY_ALGORITHM_HMAC_MD5_128)
authentication_algorithm = IPMI_AUTHENTICATION_ALGORITHM_RAKP_HMAC_MD5;
else if (c->config.integrity_algorithm == IPMI_INTEGRITY_ALGORITHM_MD5_128)
{
/* achu: I have thus far been unable to reverse engineer this
* corner case. Since we cannot provide a reasonable two
* part authentication, we're going to error out.
*/
IPMICONSOLE_CTX_DEBUG (c, ("Intel Non-Compliance: Cannot Reverse Engineer"));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_BMC_ERROR);
return (0);
}
}
else
authentication_algorithm = c->config.authentication_algorithm;
if (FIID_OBJ_GET (c->connection.obj_open_session_response,
"managed_system_session_id",
&val) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("FIID_OBJ_GET: 'managed_system_session_id': %s",
fiid_obj_errormsg (c->connection.obj_open_session_response)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
managed_system_session_id = val;
if ((managed_system_guid_len = fiid_obj_get_data (c->connection.obj_rakp_message_2,
"managed_system_guid",
managed_system_guid,
IPMI_MANAGED_SYSTEM_RANDOM_NUMBER_LENGTH)) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: 'managed_system_guid': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if (managed_system_guid_len != IPMI_MANAGED_SYSTEM_GUID_LENGTH)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: invalid managed system guid length: %d",
managed_system_guid_len));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
/* IPMI Workaround (achu)
*
* Discovered on Supermicro X8DTG, Supermicro X8DTU, Intel
* S5500WBV/Penguin Relion 700
*
* For whatever reason, with cipher suite 0, the RAKP 4 response
* returns with an Integrity Check Value when it should be empty.
*/
if (c->config.workaround_flags & IPMICONSOLE_WORKAROUND_NON_EMPTY_INTEGRITY_CHECK_VALUE
&& !c->config.cipher_suite_id)
{
if (fiid_obj_clear_field (c->connection.obj_rakp_message_4,
"integrity_check_value") < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_clear_field: 'integrity_check_value': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_4)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
}
if ((rv = ipmi_rmcpplus_check_rakp_4_integrity_check_value (authentication_algorithm,
c->session.sik_key_ptr,
c->session.sik_key_len,
c->session.remote_console_random_number,
IPMI_REMOTE_CONSOLE_RANDOM_NUMBER_LENGTH,
managed_system_session_id,
managed_system_guid,
managed_system_guid_len,
c->connection.obj_rakp_message_4)) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("ipmi_rmcpplus_check_rakp_4_integrity_check_value: p = %d; %s", p, strerror (errno)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if (!rv)
IPMICONSOLE_CTX_DEBUG (c, ("rakp 4 integrity check value check failed; p = %d", p));
return (rv);
}
int
ipmiconsole_check_rakp_2_key_exchange_authentication_code (ipmiconsole_ctx_t c, ipmiconsole_packet_type_t p)
{
uint8_t managed_system_random_number[IPMI_MANAGED_SYSTEM_RANDOM_NUMBER_LENGTH];
int managed_system_random_number_len;
uint8_t managed_system_guid[IPMI_MANAGED_SYSTEM_GUID_LENGTH];
int managed_system_guid_len;
char username_buf[IPMI_MAX_USER_NAME_LENGTH+1];
char *username;
unsigned int username_len;
char *password;
unsigned int password_len;
uint32_t managed_system_session_id;
uint64_t val;
int rv;
assert (c);
assert (c->magic == IPMICONSOLE_CTX_MAGIC);
assert (p == IPMICONSOLE_PACKET_TYPE_RAKP_MESSAGE_2);
/* IPMI Workaround
*
* Intel IPMI 2.0 implementations pad their usernames.
*/
if (c->config.workaround_flags & IPMICONSOLE_WORKAROUND_INTEL_2_0_SESSION)
{
memset (username_buf, '\0', IPMI_MAX_USER_NAME_LENGTH+1);
if (strlen (c->config.username))
strcpy (username_buf, c->config.username);
username = username_buf;
username_len = IPMI_MAX_USER_NAME_LENGTH;
}
else
{
if (strlen (c->config.username))
username = c->config.username;
else
username = NULL;
username_len = (username) ? strlen (username) : 0;
}
/* IPMI Workaround
*
* Supermicro IPMI 2.0 implementations may have invalid payload lengths
* on the RAKP response packet.
*/
if (c->config.workaround_flags & IPMICONSOLE_WORKAROUND_SUPERMICRO_2_0_SESSION)
{
uint8_t keybuf[IPMICONSOLE_PACKET_BUFLEN];
int keybuf_len;
if ((keybuf_len = fiid_obj_get_data (c->connection.obj_rakp_message_2,
"key_exchange_authentication_code",
keybuf,
IPMICONSOLE_PACKET_BUFLEN)) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: 'key_exchange_authentication_code': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if (c->config.authentication_algorithm == IPMI_AUTHENTICATION_ALGORITHM_RAKP_NONE
&& keybuf_len == 1)
{
if (fiid_obj_clear_field (c->connection.obj_rakp_message_2,
"key_exchange_authentication_code") < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_clear_field: 'key_exchange_authentication_code': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
}
else if (c->config.authentication_algorithm == IPMI_AUTHENTICATION_ALGORITHM_RAKP_HMAC_SHA1
&& keybuf_len == (IPMI_HMAC_SHA1_DIGEST_LENGTH + 1))
{
if (fiid_obj_set_data (c->connection.obj_rakp_message_2,
"key_exchange_authentication_code",
keybuf,
IPMI_HMAC_SHA1_DIGEST_LENGTH) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_set_data: 'key_exchange_authentication_code': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
}
else if (c->config.authentication_algorithm == IPMI_AUTHENTICATION_ALGORITHM_RAKP_HMAC_MD5
&& keybuf_len == (IPMI_HMAC_MD5_DIGEST_LENGTH + 1))
{
if (fiid_obj_set_data (c->connection.obj_rakp_message_2,
"key_exchange_authentication_code",
keybuf,
IPMI_HMAC_MD5_DIGEST_LENGTH) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_set_data: 'key_exchange_authentication_code': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
}
}
if (strlen (c->config.password))
password = c->config.password;
else
password = NULL;
password_len = (password) ? strlen (password) : 0;
/* IPMI Workaround
*
* Intel IPMI 2.0 implementations improperly calculate HMAC-MD5-128 hashes
* when the passwords are > 16 bytes long. The BMCs probably assume
* all keys are <= 16 bytes in length. So we have to adjust.
*/
if (c->config.workaround_flags & IPMICONSOLE_WORKAROUND_INTEL_2_0_SESSION
&& c->config.authentication_algorithm == IPMI_AUTHENTICATION_ALGORITHM_RAKP_HMAC_MD5
&& password_len > IPMI_1_5_MAX_PASSWORD_LENGTH)
password_len = IPMI_1_5_MAX_PASSWORD_LENGTH;
/* IPMI Workaround
*
* Discovered on Sun Fire 4100.
*
* The key exchange authentication code is the wrong length. We
* need to shorten it.
*/
if (c->config.workaround_flags & IPMICONSOLE_WORKAROUND_SUN_2_0_SESSION
&& c->config.authentication_algorithm == IPMI_AUTHENTICATION_ALGORITHM_RAKP_HMAC_SHA1)
{
uint8_t buf[IPMI_MAX_KEY_EXCHANGE_AUTHENTICATION_CODE_LENGTH];
int buf_len;
/* trace, but do not return potential error */
if ((buf_len = fiid_obj_get_data (c->connection.obj_rakp_message_2,
"key_exchange_authentication_code",
buf,
IPMI_MAX_KEY_EXCHANGE_AUTHENTICATION_CODE_LENGTH)) < 0)
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: 'key_exchange_authentication_code': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
if (buf_len == (IPMI_HMAC_SHA1_DIGEST_LENGTH + 1))
{
/* trace, but do not return potential error */
if (fiid_obj_clear_field (c->connection.obj_rakp_message_2,
"key_exchange_authentication_code") < 0)
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_clear_field: 'key_exchange_authentication_code': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
if (fiid_obj_set_data (c->connection.obj_rakp_message_2,
"key_exchange_authentication_code",
buf,
IPMI_HMAC_SHA1_DIGEST_LENGTH) < 0)
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_set_data: 'key_exchange_authentication_code': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
}
}
if (FIID_OBJ_GET (c->connection.obj_open_session_response,
"managed_system_session_id",
&val) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("FIID_OBJ_GET: 'managed_system_session_id': %s",
fiid_obj_errormsg (c->connection.obj_open_session_response)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
managed_system_session_id = val;
if ((managed_system_random_number_len = fiid_obj_get_data (c->connection.obj_rakp_message_2,
"managed_system_random_number",
managed_system_random_number,
IPMI_MANAGED_SYSTEM_RANDOM_NUMBER_LENGTH)) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: 'managed_system_random_number': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if (managed_system_random_number_len != IPMI_MANAGED_SYSTEM_RANDOM_NUMBER_LENGTH)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: invalid managed system random number length: %d",
managed_system_random_number_len));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if ((managed_system_guid_len = fiid_obj_get_data (c->connection.obj_rakp_message_2,
"managed_system_guid",
managed_system_guid,
IPMI_MANAGED_SYSTEM_GUID_LENGTH)) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: 'managed_system_guid': %s",
fiid_obj_errormsg (c->connection.obj_rakp_message_2)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if (managed_system_guid_len != IPMI_MANAGED_SYSTEM_GUID_LENGTH)
{
IPMICONSOLE_CTX_DEBUG (c, ("fiid_obj_get_data: invalid managed system guid length: %d",
managed_system_guid_len));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if ((rv = ipmi_rmcpplus_check_rakp_2_key_exchange_authentication_code (c->config.authentication_algorithm,
password,
password_len,
c->session.remote_console_session_id,
managed_system_session_id,
c->session.remote_console_random_number,
IPMI_REMOTE_CONSOLE_RANDOM_NUMBER_LENGTH,
managed_system_random_number,
managed_system_random_number_len,
managed_system_guid,
managed_system_guid_len,
c->session.name_only_lookup,
c->config.privilege_level,
username,
username_len,
c->connection.obj_rakp_message_2)) < 0)
{
IPMICONSOLE_CTX_DEBUG (c, ("ipmi_rmcpplus_check_rakp_2_key_exchange_authentication_code: p = %d; %s", p, strerror (errno)));
ipmiconsole_ctx_set_errnum (c, IPMICONSOLE_ERR_INTERNAL_ERROR);
return (-1);
}
if (!rv)
IPMICONSOLE_CTX_DEBUG (c, ("rakp 2 key exchanged authentication code check failed; p = %d", p));
return (rv);
}