[people/ms/network.git] / functions.device

#!/bin/bash
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2010  Michael Tremer & Christian Schmidt                      #
#                                                                             #
# 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 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

function devicify() {
	local device=${1}

	assert isset device

	if device_exists ${device}; then
		echo "${device}"
		return ${EXIT_OK}
	fi

	local d
	for d in $(devices_get_all); do
		if [ "$(device_get_address ${d})" = "${device}" ]; then
			echo "${d}"
			return ${EXIT_OK}
		fi
	done

	return ${EXIT_ERROR}
}

function macify() {
	local device=${1}

	assert isset device

	if mac_is_valid ${device}; then
		echo "${device}"
		return ${EXIT_OK}
	fi

	if device_exists ${device}; then
		device_get_address ${device}
		return ${EXIT_OK}
	fi

	return ${EXIT_ERROR}
}

# Check if the device exists
function device_exists() {
	local device=${1}

	# If device name was not found, exit.
	[ -n "${device}" ] || return ${EXIT_ERROR}

	[ -d "${SYS_CLASS_NET}/${device}" ]
}

# Check if the device is up
function device_is_up() {
	local device=${1}

	device_exists ${device} || return ${EXIT_ERROR}

	ip link show ${device} 2>/dev/null | grep -qE "<.*UP.*>"
}

# Check if the device is a bonding device
function device_is_bonding() {
	[ -d "/sys/class/net/${1}/bonding" ]
}

# Check if the device bonded in a bonding device
function device_is_bonded() {
	local device=${1}

	[ -d "${SYS_CLASS_NET}/${device}/master" ]
}

# Check if the device is a bridge
function device_is_bridge() {
	[ -d "/sys/class/net/${1}/bridge" ]
}

function device_is_bridge_attached() {
	local device=${1}

	[ -d "${SYS_CLASS_NET}/${device}/brport" ]
}

# Check if the device is a virtual device
function device_is_virtual() {
	local device=${1}

	[ -e "/proc/net/vlan/${device}" ]
}

# Check if the device has virtual devices
function device_has_virtuals() {
	local device=${1}

	if device_is_virtual ${device}; then
		return 1
	fi

	if [ ! -e "/proc/net/vlan/config" ]; then
		return 1
	fi
	grep -q "${1}$" /proc/net/vlan/config
}

# Check if the device is a ppp device
function device_is_ppp() {
	local device=${1}

	local type=$(__device_get_file ${device} type)
	if [ "${type}" = "512" ]; then
		return ${EXIT_OK}
	fi

	return ${EXIT_ERROR}
}

# Check if the device is a loopback device
function device_is_loopback() {
	local device=$(devicify ${1})
	[ "${device}" = "lo" ]
}

# Check if the device is a physical network interface
function device_is_real() {
	local device=${1}

	device_is_loopback ${device} && \
		return ${EXIT_ERROR}

	device_is_bonding ${device} &&  \
		return ${EXIT_ERROR}

	device_is_bridge ${device} && \
		return ${EXIT_ERROR}

	device_is_ppp ${device} && \
		return ${EXIT_ERROR}

	device_is_virtual ${device} && \
		return ${EXIT_ERROR}

	[ "$(__device_get_file ${device} type)" != "1" ] && \
		return ${EXIT_ERROR}

	return ${EXIT_OK}
}

# Get the device type
function device_get_type() {
	local device=$(devicify ${1})

	if device_is_virtual ${device}; then
		echo "vlan"

	elif device_is_bonding ${device}; then
		echo "bonding"

	elif device_is_bridge ${device}; then
		echo "bridge"

	elif device_is_ppp ${device}; then
		echo "ppp"

	elif device_is_loopback ${device}; then
		echo "loopback"

	elif device_is_real ${device}; then
		echo "real"

	else
		echo "unknown"
	fi
}

function device_get_status() {
	local device=${1}

	assert isset device

	local status=${STATUS_UNKNOWN}

	if ! device_has_carrier ${device}; then
		status=${STATUS_NOCARRIER}
	elif device_is_up ${device}; then
		status=${STATUS_UP}
	elif device_is_down ${device}; then
		status=${STATUS_DOWN}
	fi

	assert isset status

	echo "${status}"
}

function device_get_address() {
	local device=${1}

	cat ${SYS_CLASS_NET}/${device}/address 2>/dev/null
}

function device_set_address() {
	local device=${1}
	local addr=${2}
	
	if ! device_exists ${device}; then
		error "Device '${device}' does not exist."
		return ${EXIT_ERROR}
	fi

	log INFO "Setting address of '${device}' to '${addr}' - was $(device_get_address ${device})."

	local up
	if device_is_up ${device}; then
		device_set_down ${device}
		up=1
	fi

	ip link set ${device} address ${addr}
	local ret=$?

	if [ "${up}" = "1" ]; then
		device_set_up ${device}
	fi

	if [ "${ret}" != "0" ]; then
		error_log "Could not set address '${addr}' on device '${device}'."
	fi

	return ${ret}
}

function device_get() {
	local device
	local devices

	for device in ${SYS_CLASS_NET}/*; do
		device=$(basename ${device})

		# bonding_masters is no device
		[ "${device}" = "bonding_masters" ] && continue

		devices="${devices} ${device}"
	done

	echo ${devices}
	return ${EXIT_OK}
}

function devices_get_all() {
	device_get
}

# Check if a device has a cable plugged in
function device_has_carrier() {
	local device=$(devicify ${1})
	[ "$(<${SYS_CLASS_NET}/${device}/carrier)" = "1" ]
}

function device_is_promisc() {
	local device=${1}

	ip link show ${device} | grep -qE "<.*PROMISC.*>"
}

function device_set_promisc() {
	local device=${1}
	local state=${2}

	assert device_exists ${device}
	assert isset state
	assert isoneof state on off

	ip link set ${device} promisc ${state}
}

# Check if the device is free
function device_is_free() {
	! device_is_used $@
}

# Check if the device is used
function device_is_used() {
	local device=$(devicify ${1})

	device_has_virtuals ${device} && \
		return ${EXIT_OK}
	device_is_bonded ${device} && \
		return ${EXIT_OK}
	device_is_bridge_attached ${device} && \
		return ${EXIT_OK}

	return ${EXIT_ERROR}
}

function device_hash() {
	local device=${1}

	# Get mac address of device and remove all colons (:)
	# that will result in a hash.
	device=$(macify ${device})

	echo "${device//:/}"
}

# Give the device a new name
function device_set_name() {
	local source=$1
	local destination=${2}

	# Check if devices exists
	if ! device_exists ${source} || device_exists ${destination}; then
		return 4
	fi

	local up
	if device_is_up ${source}; then
		ip link set ${source} down
		up=1
	fi

	ip link set ${source} name ${destination}

	if [ "${up}" = "1" ]; then
		ip link set ${destination} up
	fi
}

# Set device up
function device_set_up() {
	local device=$(devicify ${1})

	# Silently fail if device was not found
	[ -z "${device}" ] && return ${EXIT_ERROR}

	# Do nothing if device is already up
	device_is_up ${device} && return ${EXIT_OK}

	device_set_parent_up ${device}

	log DEBUG "Setting up device '${device}'"

	ip link set ${device} up
}

function device_set_parent_up() {
	local device=${1}
	local parent

	if device_is_virtual ${device}; then
		parent=$(virtual_get_parent ${device})

		device_is_up ${parent} && return ${EXIT_OK}

		log DEBUG "Setting up parent device '${parent}' of '${device}'"

		device_set_up ${parent}
		return $?
	fi

	return ${EXIT_OK}
}

# Set device down
function device_set_down() {
	local device=$(devicify ${1})

	local ret=${EXIT_OK}

	if device_is_up ${device}; then
		log DEBUG "Tearing down device '${device}'"

		ip link set ${device} down
		ret=$?
	fi

	device_set_parent_down ${device}

	return ${ret}
}

function device_set_parent_down() {
	local device=${1}
	local parent

	if device_is_virtual ${device}; then
		parent=$(virtual_get_parent ${device})

		device_is_up ${parent} || return ${EXIT_OK}

		if device_is_free ${parent}; then
			log DEBUG "Tearing down parent device '${parent}' of '${device}'"

			device_set_down ${parent}
		fi
	fi
	
	return ${EXIT_OK}
}

function device_get_mtu() {
	local device=${1}

	if ! device_exists ${device}; then
		error "Device '${device}' does not exist."
		return ${EXIT_ERROR}
	fi

	echo $(<${SYS_CLASS_NET}/${device}/mtu)
}

# Set mtu to a device
function device_set_mtu() {
	local device=${1}
	local mtu=${2}

	if ! device_exists ${device}; then
		error "Device '${device}' does not exist."
		return ${EXIT_ERROR}
	fi
	
	local oldmtu=$(device_get_mtu ${device})

	if [ "${oldmtu}" = "${mtu}" ]; then
		# No need to set mtu.
		return ${EXIT_OK}
	fi

	log INFO "Setting mtu of '${device}' to '${mtu}' - was ${oldmtu}."

	local up
	if device_is_up ${device}; then
		device_set_down ${device}
		up=1
	fi

	ip link set ${device} mtu ${mtu}
	local ret=$?

	if [ "${up}" = "1" ]; then
		device_set_up ${device}
	fi

	if [ "${ret}" != "0" ]; then
		error_log "Could not set mtu '${mtu}' on device '${device}'."
	fi

	return ${ret}
}

function device_discover() {
	local device=${1}

	log INFO "Running discovery process on device '${device}'."

	local hook
	for hook in $(hook_zone_get_all); do
		hook_zone_exec ${hook} discover ${device}
	done
}

function device_has_ip() {
	local device=${1}
	local addr=${2}

	assert isset addr
	assert device_exists ${device}

	# IPv6 addresses must be fully imploded
	local protocol=$(ip_detect_protocol ${addr})
	case "${protocol}" in
		ipv6)
			addr=$(ipv6_implode ${addr})
			;;
	esac

	listmatch ${addr} $(device_get_addresses ${device})
}

function device_get_addresses() {
	local device=${1}

	assert device_exists ${device}

	local prot
	local addr
	local line
	ip addr show ${device} | \
		while read prot addr line; do
			[ "${prot:0:4}" = "inet" ] && echo "${addr}"
		done
}

function __device_get_file() {
	local device=${1}
	local file=${2}

	assert isset device
	assert isset file

	cat ${SYS_CLASS_NET}/${device}/${file}
}

function device_get_rx_bytes() {
	local device=${1}

	__device_get_file ${device} statistics/rx_bytes
}

function device_get_tx_bytes() {
	local device=${1}

	__device_get_file ${device} statistics/tx_bytes
}

function device_get_rx_packets() {
	local device=${1}

	__device_get_file ${device} statistics/rx_packets
}

function device_get_tx_packets() {
	local device=${1}

	__device_get_file ${device} statistics/tx_packets
}

function device_get_rx_errors() {
	local device=${1}

	__device_get_file ${device} statistics/rx_errors
}

function device_get_tx_errors() {
	local device=${1}

	__device_get_file ${device} statistics/tx_errors
}

function device_hotplug() {
	local device=${1}
	shift

	assert isset device
	assert device_exists ${device}

	if ! device_is_free ${device}; then
		log ERROR "The device '${device}' is in use."
		return ${EXIT_ERROR}
	fi

	if ! device_is_real ${device}; then
		log DEBUG "Don't rename any virtual devices."
		return ${EXIT_OK}
	fi

	for port in $(ports_get_all); do
		port_cmd hotplug ${port} ${device}
		if [ $? -eq ${EXIT_OK} ]; then
			echo "${port}"
			return ${EXIT_OK}
		fi
	done

	# If no port configuration could be found, we search for the next
	# unused name and return that.
	local port=$(port_find_free ${PORT_PATTERN})

	log DEBUG "Could not find an existing port configuration for '${device}'."
	log DEBUG "${device} --> ${port}"

	echo "${port}"
	return ${EXIT_OK}
}
Commit	Line	Data
1848564d MT	1	#!/bin/bash
	2	###############################################################################
	3	# #
	4	# IPFire.org - A linux based firewall #
	5	# Copyright (C) 2010 Michael Tremer & Christian Schmidt #
	6	# #
	7	# This program is free software: you can redistribute it and/or modify #
	8	# it under the terms of the GNU General Public License as published by #
	9	# the Free Software Foundation, either version 3 of the License, or #
	10	# (at your option) any later version. #
	11	# #
	12	# This program is distributed in the hope that it will be useful, #
	13	# but WITHOUT ANY WARRANTY; without even the implied warranty of #
	14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
	15	# GNU General Public License for more details. #
	16	# #
	17	# You should have received a copy of the GNU General Public License #
	18	# along with this program. If not, see <http://www.gnu.org/licenses/>. #
	19	# #
	20	###############################################################################
	21
1b7a1578	22	function devicify() {
1848564d MT	23	local device=${1}
1848564d MT	24
711ffac1 MT	25	assert isset device
711ffac1 MT	26
1848564d MT	27	if device_exists ${device}; then
	28	echo "${device}"
	29	return ${EXIT_OK}
	30	fi
	31
	32	local d
	33	for d in $(devices_get_all); do
	34	if [ "$(device_get_address ${d})" = "${device}" ]; then
	35	echo "${d}"
	36	return ${EXIT_OK}
	37	fi
	38	done
	39
	40	return ${EXIT_ERROR}
	41	}
	42
	43	function macify() {
	44	local device=${1}
	45
711ffac1 MT	46	assert isset device
711ffac1 MT	47
1848564d MT	48	if mac_is_valid ${device}; then
	49	echo "${device}"
	50	return ${EXIT_OK}
	51	fi
	52
	53	if device_exists ${device}; then
	54	device_get_address ${device}
	55	return ${EXIT_OK}
	56	fi
	57
	58	return ${EXIT_ERROR}
	59	}
	60
	61	# Check if the device exists
	62	function device_exists() {
	63	local device=${1}
	64
	65	# If device name was not found, exit.
	66	[ -n "${device}" ] \|\| return ${EXIT_ERROR}
	67
	68	[ -d "${SYS_CLASS_NET}/${device}" ]
	69	}
	70
	71	# Check if the device is up
	72	function device_is_up() {
	73	local device=${1}
	74
	75	device_exists ${device} \|\| return ${EXIT_ERROR}
	76
	77	ip link show ${device} 2>/dev/null \| grep -qE "<.UP.>"
	78	}
	79
	80	# Check if the device is a bonding device
	81	function device_is_bonding() {
	82	[ -d "/sys/class/net/${1}/bonding" ]
	83	}
	84
	85	# Check if the device bonded in a bonding device
	86	function device_is_bonded() {
711ffac1	87	local device=${1}
1848564d	88
711ffac1	89	[ -d "${SYS_CLASS_NET}/${device}/master" ]
1848564d MT	90	}
	91
	92	# Check if the device is a bridge
	93	function device_is_bridge() {
	94	[ -d "/sys/class/net/${1}/bridge" ]
	95	}
	96
81ed640c MT	97	function device_is_bridge_attached() {
	98	local device=${1}
	99
	100	[ -d "${SYS_CLASS_NET}/${device}/brport" ]
	101	}
	102
1848564d MT	103	# Check if the device is a virtual device
	104	function device_is_virtual() {
	105	local device=${1}
	106
	107	[ -e "/proc/net/vlan/${device}" ]
	108	}
	109
	110	# Check if the device has virtual devices
	111	function device_has_virtuals() {
fb02e543 MT	112	local device=${1}
	113
	114	if device_is_virtual ${device}; then
	115	return 1
	116	fi
	117
1848564d MT	118	if [ ! -e "/proc/net/vlan/config" ]; then
	119	return 1
	120	fi
	121	grep -q "${1}$" /proc/net/vlan/config
	122	}
	123
1848564d MT	124	# Check if the device is a ppp device
	125	function device_is_ppp() {
	126	local device=${1}
	127
55b802cc MT	128	local type=$(__device_get_file ${device} type)
	129	if [ "${type}" = "512" ]; then
	130	return ${EXIT_OK}
	131	fi
	132
	133	return ${EXIT_ERROR}
1848564d MT	134	}
	135
	136	# Check if the device is a loopback device
	137	function device_is_loopback() {
	138	local device=$(devicify ${1})
	139	[ "${device}" = "lo" ]
	140	}
	141
	142	# Check if the device is a physical network interface
	143	function device_is_real() {
	144	local device=${1}
	145
	146	device_is_loopback ${device} && \
	147	return ${EXIT_ERROR}
	148
	149	device_is_bonding ${device} && \
	150	return ${EXIT_ERROR}
	151
	152	device_is_bridge ${device} && \
	153	return ${EXIT_ERROR}
	154
	155	device_is_ppp ${device} && \
	156	return ${EXIT_ERROR}
	157
	158	device_is_virtual ${device} && \
	159	return ${EXIT_ERROR}
	160
419b4cd0 MT	161	[ "$(__device_get_file ${device} type)" != "1" ] && \
	162	return ${EXIT_ERROR}
	163
1848564d MT	164	return ${EXIT_OK}
	165	}
	166
	167	# Get the device type
	168	function device_get_type() {
	169	local device=$(devicify ${1})
	170
8c6a8966	171	if device_is_virtual ${device}; then
1848564d MT	172	echo "vlan"
	173
	174	elif device_is_bonding ${device}; then
	175	echo "bonding"
	176
	177	elif device_is_bridge ${device}; then
	178	echo "bridge"
	179
	180	elif device_is_ppp ${device}; then
	181	echo "ppp"
	182
	183	elif device_is_loopback ${device}; then
	184	echo "loopback"
	185
	186	elif device_is_real ${device}; then
	187	echo "real"
	188
	189	else
	190	echo "unknown"
	191	fi
	192	}
	193
711ffac1 MT	194	function device_get_status() {
	195	local device=${1}
	196
	197	assert isset device
	198
	199	local status=${STATUS_UNKNOWN}
	200
	201	if ! device_has_carrier ${device}; then
	202	status=${STATUS_NOCARRIER}
	203	elif device_is_up ${device}; then
	204	status=${STATUS_UP}
	205	elif device_is_down ${device}; then
	206	status=${STATUS_DOWN}
	207	fi
	208
	209	assert isset status
	210
	211	echo "${status}"
	212	}
	213
1848564d MT	214	function device_get_address() {
	215	local device=${1}
	216
	217	cat ${SYS_CLASS_NET}/${device}/address 2>/dev/null
	218	}
	219
	220	function device_set_address() {
1b7a1578 MT	221	local device=${1}
	222	local addr=${2}
	223
	224	if ! device_exists ${device}; then
	225	error "Device '${device}' does not exist."
	226	return ${EXIT_ERROR}
	227	fi
	228
	229	log INFO "Setting address of '${device}' to '${addr}' - was $(device_get_address ${device})."
	230
	231	local up
	232	if device_is_up ${device}; then
	233	device_set_down ${device}
	234	up=1
	235	fi
	236
	237	ip link set ${device} address ${addr}
	238	local ret=$?
	239
	240	if [ "${up}" = "1" ]; then
	241	device_set_up ${device}
	242	fi
	243
	244	if [ "${ret}" != "0" ]; then
	245	error_log "Could not set address '${addr}' on device '${device}'."
	246	fi
	247
	248	return ${ret}
1848564d MT	249	}
1848564d MT	250
711ffac1	251	function device_get() {
2ae0fb8d	252	local device
711ffac1 MT	253	local devices
711ffac1 MT	254
2ae0fb8d MT	255	for device in ${SYS_CLASS_NET}/*; do
2ae0fb8d MT	256	device=$(basename ${device})
711ffac1	257
2ae0fb8d MT	258	# bonding_masters is no device
	259	[ "${device}" = "bonding_masters" ] && continue
	260
	261	devices="${devices} ${device}"
	262	done
711ffac1 MT	263
	264	echo ${devices}
	265	return ${EXIT_OK}
	266	}
	267
1848564d	268	function devices_get_all() {
711ffac1	269	device_get
1848564d MT	270	}
	271
	272	# Check if a device has a cable plugged in
	273	function device_has_carrier() {
	274	local device=$(devicify ${1})
	275	[ "$(<${SYS_CLASS_NET}/${device}/carrier)" = "1" ]
	276	}
	277
1e4c26a4 MT	278	function device_is_promisc() {
	279	local device=${1}
	280
	281	ip link show ${device} \| grep -qE "<.PROMISC.>"
	282	}
	283
cf6e4606 MT	284	function device_set_promisc() {
	285	local device=${1}
	286	local state=${2}
	287
	288	assert device_exists ${device}
	289	assert isset state
	290	assert isoneof state on off
	291
	292	ip link set ${device} promisc ${state}
	293	}
	294
1848564d MT	295	# Check if the device is free
1848564d MT	296	function device_is_free() {
81ed640c	297	! device_is_used $@
1848564d MT	298	}
	299
	300	# Check if the device is used
	301	function device_is_used() {
	302	local device=$(devicify ${1})
	303
fb02e543 MT	304	device_has_virtuals ${device} && \
fb02e543 MT	305	return ${EXIT_OK}
1848564d	306	device_is_bonded ${device} && \
fb02e543	307	return ${EXIT_OK}
81ed640c MT	308	device_is_bridge_attached ${device} && \
81ed640c MT	309	return ${EXIT_OK}
1848564d	310
fb02e543	311	return ${EXIT_ERROR}
1848564d MT	312	}
1848564d MT	313
1b7a1578 MT	314	function device_hash() {
	315	local device=${1}
	316
37e4ec8b MT	317	# Get mac address of device and remove all colons (:)
	318	# that will result in a hash.
	319	device=$(macify ${device})
	320
	321	echo "${device//:/}"
1b7a1578 MT	322	}
	323
	324	# Give the device a new name
	325	function device_set_name() {
1848564d	326	local source=$1
1578dae9	327	local destination=${2}
1848564d MT	328
	329	# Check if devices exists
	330	if ! device_exists ${source} \|\| device_exists ${destination}; then
	331	return 4
	332	fi
	333
	334	local up
	335	if device_is_up ${source}; then
	336	ip link set ${source} down
	337	up=1
	338	fi
	339
	340	ip link set ${source} name ${destination}
	341
	342	if [ "${up}" = "1" ]; then
	343	ip link set ${destination} up
	344	fi
	345	}
	346
1848564d MT	347	# Set device up
	348	function device_set_up() {
	349	local device=$(devicify ${1})
	350
711ffac1 MT	351	# Silently fail if device was not found
	352	[ -z "${device}" ] && return ${EXIT_ERROR}
	353
1848564d MT	354	# Do nothing if device is already up
	355	device_is_up ${device} && return ${EXIT_OK}
	356
81ed640c MT	357	device_set_parent_up ${device}
	358
	359	log DEBUG "Setting up device '${device}'"
	360
1848564d MT	361	ip link set ${device} up
	362	}
	363
81ed640c MT	364	function device_set_parent_up() {
	365	local device=${1}
	366	local parent
	367
	368	if device_is_virtual ${device}; then
8c6a8966	369	parent=$(virtual_get_parent ${device})
81ed640c MT	370
	371	device_is_up ${parent} && return ${EXIT_OK}
	372
	373	log DEBUG "Setting up parent device '${parent}' of '${device}'"
	374
	375	device_set_up ${parent}
	376	return $?
	377	fi
	378
	379	return ${EXIT_OK}
	380	}
	381
1848564d MT	382	# Set device down
	383	function device_set_down() {
	384	local device=$(devicify ${1})
	385
81ed640c MT	386	local ret=${EXIT_OK}
	387
	388	if device_is_up ${device}; then
	389	log DEBUG "Tearing down device '${device}'"
	390
	391	ip link set ${device} down
	392	ret=$?
	393	fi
	394
	395	device_set_parent_down ${device}
1848564d	396
81ed640c MT	397	return ${ret}
	398	}
	399
	400	function device_set_parent_down() {
	401	local device=${1}
	402	local parent
	403
	404	if device_is_virtual ${device}; then
8c6a8966	405	parent=$(virtual_get_parent ${device})
81ed640c MT	406
	407	device_is_up ${parent} \|\| return ${EXIT_OK}
	408
	409	if device_is_free ${parent}; then
	410	log DEBUG "Tearing down parent device '${parent}' of '${device}'"
	411
	412	device_set_down ${parent}
	413	fi
	414	fi
	415
	416	return ${EXIT_OK}
1848564d MT	417	}
1848564d MT	418
1848564d MT	419	function device_get_mtu() {
	420	local device=${1}
	421
	422	if ! device_exists ${device}; then
	423	error "Device '${device}' does not exist."
	424	return ${EXIT_ERROR}
	425	fi
	426
f3e6fe50	427	echo $(<${SYS_CLASS_NET}/${device}/mtu)
1848564d MT	428	}
	429
	430	# Set mtu to a device
	431	function device_set_mtu() {
1b7a1578	432	local device=${1}
1848564d MT	433	local mtu=${2}
1848564d MT	434
1b7a1578 MT	435	if ! device_exists ${device}; then
	436	error "Device '${device}' does not exist."
	437	return ${EXIT_ERROR}
	438	fi
	439
	440	local oldmtu=$(device_get_mtu ${device})
	441
	442	if [ "${oldmtu}" = "${mtu}" ]; then
	443	# No need to set mtu.
	444	return ${EXIT_OK}
	445	fi
	446
	447	log INFO "Setting mtu of '${device}' to '${mtu}' - was ${oldmtu}."
	448
1848564d	449	local up
1b7a1578 MT	450	if device_is_up ${device}; then
1b7a1578 MT	451	device_set_down ${device}
1848564d MT	452	up=1
	453	fi
	454
1b7a1578	455	ip link set ${device} mtu ${mtu}
1848564d MT	456	local ret=$?
	457
	458	if [ "${up}" = "1" ]; then
1b7a1578 MT	459	device_set_up ${device}
	460	fi
	461
	462	if [ "${ret}" != "0" ]; then
	463	error_log "Could not set mtu '${mtu}' on device '${device}'."
1848564d MT	464	fi
	465
	466	return ${ret}
	467	}
	468
	469	function device_discover() {
	470	local device=${1}
	471
1b7a1578 MT	472	log INFO "Running discovery process on device '${device}'."
1b7a1578 MT	473
1848564d	474	local hook
d61a01d4 MT	475	for hook in $(hook_zone_get_all); do
d61a01d4 MT	476	hook_zone_exec ${hook} discover ${device}
1848564d MT	477	done
	478	}
	479
38f61548	480	function device_has_ip() {
1848564d MT	481	local device=${1}
	482	local addr=${2}
	483
38f61548 MT	484	assert isset addr
	485	assert device_exists ${device}
	486
	487	# IPv6 addresses must be fully imploded
	488	local protocol=$(ip_detect_protocol ${addr})
	489	case "${protocol}" in
	490	ipv6)
	491	addr=$(ipv6_implode ${addr})
	492	;;
	493	esac
1848564d	494
38f61548	495	listmatch ${addr} $(device_get_addresses ${device})
1848564d	496	}
4231f419	497
38f61548	498	function device_get_addresses() {
4231f419	499	local device=${1}
4231f419	500
38f61548	501	assert device_exists ${device}
4231f419	502
38f61548 MT	503	local prot
	504	local addr
	505	local line
	506	ip addr show ${device} \| \
	507	while read prot addr line; do
	508	[ "${prot:0:4}" = "inet" ] && echo "${addr}"
	509	done
4231f419	510	}
711ffac1	511
711ffac1 MT	512	function __device_get_file() {
	513	local device=${1}
	514	local file=${2}
	515
	516	assert isset device
	517	assert isset file
	518
	519	cat ${SYS_CLASS_NET}/${device}/${file}
	520	}
	521
	522	function device_get_rx_bytes() {
	523	local device=${1}
	524
	525	__device_get_file ${device} statistics/rx_bytes
	526	}
	527
	528	function device_get_tx_bytes() {
	529	local device=${1}
	530
	531	__device_get_file ${device} statistics/tx_bytes
	532	}
	533
	534	function device_get_rx_packets() {
	535	local device=${1}
	536
	537	__device_get_file ${device} statistics/rx_packets
	538	}
	539
	540	function device_get_tx_packets() {
	541	local device=${1}
	542
	543	__device_get_file ${device} statistics/tx_packets
	544	}
	545
	546	function device_get_rx_errors() {
	547	local device=${1}
	548
	549	__device_get_file ${device} statistics/rx_errors
	550	}
	551
	552	function device_get_tx_errors() {
	553	local device=${1}
	554
	555	__device_get_file ${device} statistics/tx_errors
	556	}
8895cf8f MT	557
	558	function device_hotplug() {
	559	local device=${1}
	560	shift
	561
	562	assert isset device
8c63fa13	563	assert device_exists ${device}
8895cf8f MT	564
8895cf8f MT	565	if ! device_is_free ${device}; then
a1a8f0f4 MT	566	log ERROR "The device '${device}' is in use."
a1a8f0f4 MT	567	return ${EXIT_ERROR}
8895cf8f MT	568	fi
8895cf8f MT	569
8c63fa13 MT	570	if ! device_is_real ${device}; then
	571	log DEBUG "Don't rename any virtual devices."
	572	return ${EXIT_OK}
	573	fi
	574
8895cf8f MT	575	for port in $(ports_get_all); do
	576	port_cmd hotplug ${port} ${device}
	577	if [ $? -eq ${EXIT_OK} ]; then
	578	echo "${port}"
a1a8f0f4	579	return ${EXIT_OK}
8895cf8f MT	580	fi
	581	done
	582
8c63fa13 MT	583	# If no port configuration could be found, we search for the next
	584	# unused name and return that.
	585	local port=$(port_find_free ${PORT_PATTERN})
	586
	587	log DEBUG "Could not find an existing port configuration for '${device}'."
	588	log DEBUG "${device} --> ${port}"
	589
	590	echo "${port}"
	591	return ${EXIT_OK}
8895cf8f	592	}