BMC-DEVICE

Section: System Commands (8) Updated: 2011-04-04 Local index Up

NAME

bmc-device - perform advanced BMC commands

SYNOPSIS

bmc-device [OPTION...]

DESCRIPTION

bmc-device supports a variety of IPMI commands to perform advanced BMC functions. This tool is primarily used for development debugging, BMC error recory, retrieving detailed technical information, and other advanced purposes. Most IPMI users will not need to use this tool. Some of the bmc-device commands are not supported on all motherboards.

GENERAL OPTIONS

The following options are general options for configuring IPMI communication and executing general tool commands.

-D, --driver-type=IPMIDRIVER

Specify the driver type to use instead of doing an auto selection. The currently available outofband drivers are LAN and LAN_2_0, which perform IPMI 1.5 and IPMI 2.0 respectively. The currently available inband drivers are KCS, SSIF, OPENIPMI, and SUNBMC.

--disable-auto-probe

Do not probe in-band IPMI devices for default settings.

--driver-address=DRIVER-ADDRESS

Specify the in-band driver address to be used instead of the probed value. DRIVER-ADDRESS should be prefixed with "0x" for a hex value and '0' for an octal value.

--driver-device=DEVICE

Specify the in-band driver device path to be used instead of the probed path.

--register-spacing=REGISTER-SPACING

Specify the in-band driver register spacing instead of the probed value.

-h, --hostname=IPMIHOST1,IPMIHOST2,...

Specify the remote host(s) to communicate with. Multiple hostnames may be separated by comma or may be specified in a range format; see HOSTRANGED SUPPORT below.

-u, --username=USERNAME

Specify the username to use when authenticating with the remote host. If not specified, a null (i.e. anonymous) username is assumed. The user must have atleast USER privileges in order for this tool to operate fully.

-p, --password=PASSWORD

Specify the password to use when authenticationg with the remote host. If not specified, a null password is assumed. Maximum password length is 16 for IPMI 1.5 and 20 for IPMI 2.0.

-P, --password-prompt

Prompt for password to avoid possibility of listing it in process lists.

-k, --k-g=K_G

Specify the K_g BMC key to use when authenticating with the remote host for IPMI 2.0. If not specified, a null key is assumed. To input the key in hexadecimal form, prefix the string with '0x'. E.g., the key 'abc' can be entered with the either the string 'abc' or the string '0x616263'

-K, --k-g-prompt

Prompt for k-g to avoid possibility of listing it in process lists.

--session-timeout=MILLISECONDS

Specify the session timeout in milliseconds. Defaults to 20000 milliseconds (20 seconds) if not specified.

--retransmission-timeout=MILLISECONDS

Specify the packet retransmission timeout in milliseconds. Defaults to 1000 milliseconds (1 second) if not specified. The retransmission timeout cannot be larger than the session timeout.

-a, --authentication-type=AUTHENTICATION-TYPE

Specify the IPMI 1.5 authentication type to use. The currently available authentication types are NONE, STRAIGHT_PASSWORD_KEY, MD2, and MD5. Defaults to MD5 if not specified.

-I, --cipher-suite-id=CIPHER-SUITE-ID

Specify the IPMI 2.0 cipher suite ID to use. The Cipher Suite ID identifies a set of authentication, integrity, and confidentiality algorithms to use for IPMI 2.0 communication. The authentication algorithm identifies the algorithm to use for session setup, the integrity algorithm identifies the algorithm to use for session packet signatures, and the confidentiality algorithm identifies the algorithm to use for payload encryption. Defaults to cipher suite ID 3 if not specified. The following cipher suite ids are currently supported:

0 - Authentication Algorithm = None; Integrity Algorithm = None; Confidentiality Algorithm = None

1 - Authentication Algorithm = HMAC-SHA1; Integrity Algorithm = None; Confidentiality Algorithm = None

2 - Authentication Algorithm = HMAC-SHA1; Integrity Algorithm = HMAC-SHA1-96; Confidentiality Algorithm = None

3 - Authentication Algorithm = HMAC-SHA1; Integrity Algorithm = HMAC-SHA1-96; Confidentiality Algorithm = AES-CBC-128

6 - Authentication Algorithm = HMAC-MD5; Integrity Algorithm = None; Confidentiality Algorithm = None

7 - Authentication Algorithm = HMAC-MD5; Integrity Algorithm = HMAC-MD5-128; Confidentiality Algorithm = None

8 - Authentication Algorithm = HMAC-MD5; Integrity Algorithm = HMAC-MD5-128; Confidentiality Algorithm = AES-CBC-128

11 - Authentication Algorithm = HMAC-MD5; Integrity Algorithm = MD5-128; Confidentiality Algorithm = None

12 - Authentication Algorithm = HMAC-MD5; Integrity Algorithm = MD5-128; Confidentiality Algorithm = AES-CBC-128

-l, --privilege-level=PRIVILEGE-LEVEL

Specify the privilege level to be used. The currently available privilege levels are USER, OPERATOR, and ADMIN. Defaults to ADMIN if not specified.

--config-file=FILE

Specify an alternate configuration file.

-W, --workaround-flags=WORKAROUNDS

Specify workarounds to vendor compliance issues. Multiple workarounds can be specified separated by commas. See WORKAROUNDS below for a list of available workarounds.

--debug

Turn on debugging.

-?, --help

Output a help list and exit.

--usage

Output a usage message and exit.

-V, --version

Output the program version and exit.

BMC-DEVICE OPTIONS

The following options are specific to bmc-device.

--cold-reset: Perform a cold reset.
--warm-reset: Perform a warm reset.
--get-self-test-results: Output BMC self test results.
--get-acpi-power-state: Get ACPI system and device power state.
--set-acpi-power-state: Set ACPI power state. Must be specified to use the --set-acpi-system-power-state, and --set-acpi-device-power-state options listed below.
--set-acpi-system-power-state=SYSTEM_POWER_STATE: Set ACPI system power state. Allowed values: S0_G0, S1, S2, S3, S4, S5_G2, S4_S5, G3, SLEEPING, G1_SLEEPING, OVERRIDE, LEGACY_ON, LEGACY_OFF, UNKNOWN. Used with the --set-acpi-power-state option.
--set-acpi-device-power-state=DEVICE_POWER_STATE: Set ACPI device power state. Allowed values: D0, D1, D2, D3, UNKNOWN. Used with the --set-acpi-power-state option.
--get-lan-statistics: Get IP, UDP, and RMCP statistics.
--clear-lan-statistics: Clear IP, UDP, and RMCP statistics.
--get-sdr-repository-time: Get SDR repository time.
--set-sdr-repository-time=TIME: Set SDR repository time. Input format = "MM/DD/YYYY - HH:MM:SS". Note that hours are input in 24 hour form. Alternatively, the local system time can be specified with "now".
--get-sel-time: Get SEL time.
--set-sel-time=TIME: Set SEL time. Input format = "MM/DD/YYYY - HH:MM:SS". Note that hours are input in 24 hour form. Alternatively, the local system time can be specified with "now".
--platform-event="[generator_id] <event_message_format_version> <sensor_type> <sensor_number> <event_type> <event_direction> <event_data1> <event_data2> <event_data3>": Instruct the BMC to process the specified event data. Typically, this data will be logged to the System Event Log (SEL), but depending on implementation it may be processed by other subsystems such as Platform Event Filtering (PEF). The keywords assertion or deassertion may be used for event_direction, or the numerical values may be used instead. The event_message_format_version is 0x03 for IPMI 1.0 and 0x04 for IPMI 1.5. The generator_id above is optional, however it is required if generating the event via a system interface (i.e. inband). If generating the event via a system interface, the system management software generator id range is 0x41 to 6Fh.
--get-mca-auxiliary-log-status: Get machine check architecture (MCA) auxiliary log status information.
--get-ssif-interface-capabilities: Get SSIF interface capabilities.
--get-kcs-interface-capabilities: Get KCS interface capabilities.
--get-bt-interface-capabilities: Get BT interface capabilities.
--verbose: Increase verbosity in output.

HOSTRANGED OPTIONS

The following options manipulate hostranged output. See HOSTRANGED SUPPORT below for additional information on hostranges.

-B, --buffer-output: Buffer hostranged output. For each node, buffer standard output until the node has completed its IPMI operation. When specifying this option, data may appear to output slower to the user since the the entire IPMI operation must complete before any data can be output. See HOSTRANGED SUPPORT below for additional information.
-C, --consolidate-output: Consolidate hostranged output. The complete standard output from every node specified will be consolidated so that nodes with identical output are not output twice. A header will list those nodes with the consolidated output. When this option is specified, no output can be seen until the IPMI operations to all nodes has completed. If the user breaks out of the program early, all currently consolidated output will be dumped. See HOSTRANGED SUPPORT below for additional information.
-F, --fanout: Specify multiple host fanout. A "sliding window" (or fanout) algorithm is used for parallel IPMI communication so that slower nodes or timed out nodes will not impede parallel communication. The maximum number of threads available at the same time is limited by the fanout. The default is 64.
-E, --eliminate: Eliminate hosts determined as undetected by ipmidetect. This attempts to remove the common issue of hostranged execution timing out due to several nodes being removed from service in a large cluster. The ipmidetectd daemon must be running on the node executing the command.
--always-prefix: Always prefix output, even if only one host is specified or communicating in-band. This option is primarily useful for scripting purposes. Option will be ignored if specified with the -C option.

HOSTRANGED SUPPORT

Multiple hosts can be input either as an explicit comma separated lists of hosts or a range of hostnames in the general form: prefix[n-m,l-k,...], where n < m and l < k, etc. The later form should not be confused with regular expression character classes (also denoted by []). For example, foo[19] does not represent foo1 or foo9, but rather represents a degenerate range: foo19.

This range syntax is meant only as a convenience on clusters with a prefixNN naming convention and specification of ranges should not be considered necessary -- the list foo1,foo9 could be specified as such, or by the range foo[1,9].

Some examples of range usage follow:

    foo[01-05] instead of foo01,foo02,foo03,foo04,foo05
    foo[7,9-10] instead of foo7,foo9,foo10
    foo[0-3] instead of foo0,foo1,foo2,foo3

As a reminder to the reader, some shells will interpret brackets ([ and ]) for pattern matching. Depending on your shell, it may be necessary to enclose ranged lists within quotes.

By default, standard output from each node specified will be output with the hostname prepended to each line. Although this output is readable in many situations, it may be difficult to read in other situations. For example, output from multiple nodes may be mixed together. The -B and -C options can be used to change this default.

In-band IPMI Communication will be used when the host "localhost" is specified. This allows the user to add the localhost into the hostranged output.

GENERAL TROUBLESHOOTING

Most often, IPMI over LAN problems involve a misconfiguration of the remote machine's BMC. Double check to make sure the following are configured properly in the remote machine's BMC: IP address, MAC address, subnet mask, username, user enablement, user privilege, password, LAN privilege, LAN enablement, and allowed authentication type(s). For IPMI 2.0 connections, double check to make sure the cipher suite privilege(s) and K_g key are configured properly. The bmc-config(8) tool can be used to check and/or change these configuration settings.

The following are common issues for given error messages:

"username invalid" - The username entered (or a NULL username if none was entered) is not available on the remote machine. It may also be possible the remote BMC's username configuration is incorrect.

"password invalid" - The password entered (or a NULL password if none was entered) is not correct. It may also be possible the password for the user is not correctly configured on the remote BMC.

"password verification timeout" - Password verification has timed out. A "password invalid" error (described above) or a generic "session timeout" (described below) occurred. During this point in the protocol it cannot be differentiated which occurred.

"k_g invalid" - The K_g key entered (or a NULL K_g key if none was entered) is not correct. It may also be possible the K_g key is not correctly configured on the remote BMC.

"privilege level insufficient" - An IPMI command requires a higher user privilege than the one authenticated with. Please try to authenticate with a higher privilege. This may require authenticating to a different user which has a higher maximum privilege.

"privilege level cannot be obtained for this user" - The privilege level you are attempting to authenticate with is higher than the maximum allowed for this user. Please try again with a lower privilege. It may also be possible the maximum privilege level allowed for a user is not configured properly on the remote BMC.

"authentication type unavailable for attempted privilege level" - The authentication type you wish to authenticate with is not available for this privilege level. Please try again with an alternate authentication type or alternate privilege level. It may also be possible the available authentication types you can authenticate with are not correctly configured on the remote BMC.

"cipher suite id unavailable" - The cipher suite id you wish to authenticate with is not available on the remote BMC. Please try again with an alternate cipher suite id. It may also be possible the available cipher suite ids are not correctly configured on the remote BMC.

"ipmi 2.0 unavailable" - IPMI 2.0 was not discovered on the remote machine. Please try to use IPMI 1.5 instead.

"connection timeout" - Initial IPMI communication failed. A number of potential errors are possible, including an invalid hostname specified, an IPMI IP address cannot be resolved, IPMI is not enabled on the remote server, the network connection is bad, etc. Please verify configuration and connectivity.

"session timeout" - The IPMI session has timed out. Please reconnect.

If IPMI over LAN continually times out, you may wish to increase the retransmission timeout. Some remote BMCs are considerably slower than others.

Please see WORKAROUNDS below to also if there are any vendor specific bugs that have been discovered and worked around.

WORKAROUNDS

With so many different vendors implementing their own IPMI solutions, different vendors may implement their IPMI protocols incorrectly. The following lists the handful of compliance issues discovered and the workarounds currently supported.

When possible, workarounds have been implemented so they will be transparent to the user. However, some will require the user to specify a workaround be used via the -W option.

The hardware listed below may only indicate the hardware that a problem was discovered on. Newer versions of hardware may fix the problems indicated below. Similar machines from vendors may or may not exhibit the same problems.

Intel SR870BN4: BMCs would not respond to retransmissions of a Get Session Challenge Request if a previous Get Session Challenge response was lost. Resolved by sending retransmitted Get Session Challenge requests from a different source port. Automatically handled.

Tyan S2882 with m3289 BMC: After the IPMI session is brought up, packet responses return empty session IDs to the client. This will likely cause "session timeout" errors to occur. In order to work around this issue, the "idzero" workaround must be specified. The option will allow empty session IDs to be accepted by the client.

Dell PowerEdge 2850,SC1425: When Per-Message Authentication is disabled, packet responses contain non-null authentication data (when it should in fact be null). This will likely cause "session timeout" errors to occur. In order to work around this issue, the "unexpectedauth" workaround must be specified. The option will allow unexpected non-null authcodes to be checked as though they were expected. This compliance bug is confirmed to be fixed on newer firmware.

IBM eServer 325: The remote BMC will advertise that Per Message Authentication is disabled, but actually require it for the protocol. This will likely cause "session timeout" errors to occur. In order to work around this issue, the "forcepermsg" workaround must be specified. The option will force Per Message Authentication to be used no matter what is advertised by the remote BMC.

Supermicro H8QME with SIMSO daughter card: The remote BMC will advertise that Per Message Authentication is disabled, but actually require it for the protocol. Automatically handled.

Asus P5M2/P5MT-R/RS162-E4/RX4: The motherboard does not properly report username capabilities and/or K_g status. This will likely cause "username invalid" or "k_g invalid" errors to occur. In order to work around this issue, the "authcap" workaround must be specified.

Intel SR1520ML/X38ML: The motherboard does not properly report username capabilities and/or K_g status. This will likely cause "username invalid" or "k_g invalid" errors to occur. In order to work around this issue, the "authcap" workaround must be specified.

Sun ILOM 1.0/2.0: The session sequence numbers returned for IPMI 1.5 sessions are the wrong endian on some systems running ILOM 1.0/2.0. The incorrect endian depends on the service processor endianness. This will likely cause "session timeout" errors to occur. In order to work around this issue, the "endianseq" workaround must be specified.

Sun Fire 2200/4150/4450 with ELOM: The motherboard does not properly report username capabilities. This will likely cause "username invalid" errors to occur. In order to work around this issue, the "authcap" workaround must be specified.

Intel SE7520AF2 with Intel Server Management Module (Professional Edition): There are a number of Intel IPMI 2.0 authentication bugs. These problems may cause "username invalid", "password invalid", or "k_g invalid" errors to occur. They can be worked around by specifying the "intel20" workaround. The workarounds include padding of usernames, automatic acceptance of a RAKP 4 response integrity check when using the integrity algorithm MD5-128, and password truncation if the authentication algorithm is HMAC-MD5-128.

Supermicro H8QME with SIMSO daughter card: There are several Supermicro IPMI 2.0 bugs on early firmware revisions which can be worked around using the "supermicro20" workaround. These problems may cause "password invalid" errors to occur. These compliance bugs are confirmed to be fixed on newer firmware.

Sun Fire 4100/4200/4500 with ILOM: There are several Sun IPMI 2.0 bugs. These problems may cause "password invalid" or "bmc error" errors to occur. They can be worked around by specifying the "sun20" workaround. The workarounds include handling invalid lengthed hash keys, improperly hashed keys, and invalid cipher suite records.

Inventec 5441, Supermicro X8DTH: The privilege level sent during the Open Session stage of an IPMI 2.0 connection is used for hashing keys instead of the privilege level sent during the RAKP1 connection stage. This may cause "password invalid" or "bad rmcpplus status code" errors to occur. It can be worked around by specifying the "opensesspriv" workaround.

EXAMPLES

# bmc-device --cold-reset

Perform a cold reset.

KNOWN ISSUES

On older operating systems, if you input your username, password, and other potentially security relevant information on the command line, this information may be discovered by other users when using tools like the ps(1) command or looking in the /proc file system. It is generally more secure to input password information with options like the -P or -K options. Configuring security relevant information in the FreeIPMI configuration file would also be an appropriate way to hide this information.

In order to prevent brute force attacks, some BMCs will temporarily "lock up" after a number of remote authentication errors. You may need to wait awhile in order to this temporary "lock up" to pass before you may authenticate again.

REPORTING BUGS

Report bugs to <freeipmi-users@gnu.org> or <freeipmi-devel@gnu.org>.

COPYRIGHT

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This document was created by man2html, using the manual pages.
Time: 22:01:21 GMT, April 16, 2011