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1# wpa_supplicant (net-analyzer/wpa_supplicant) module for net-scripts 1# wpa_supplicant (net-wireless/wpa_supplicant) module for net-scripts
2# Version 1.0.0 2# Version 1.0.0
3# Copyright (c) 2004 Gentoo Foundation 3# Copyright (c) 2004 Gentoo Foundation
4# Distributed under the terms of the GNU General Public License V2 4# Distributed under the terms of the GNU General Public License V2
5# Contributed by Roy Marples (uberlord@gentoo.org) 5# Contributed by Roy Marples (uberlord@gentoo.org)
6 6
… …
90 [[ ${status[1]} == COMPLETED ]] 90 [[ ${status[1]} == COMPLETED ]]
91 fi 91 fi
92 return $? 92 return $?
93} 93}
94 94
95# bool wpa_supplicant_pre_start(char *iface) 95# void wpa_supplicant_kill(char *interface, bool report)
96# 96#
97# Start wpa_supplicant on an interface and wait for association
98# Returns 0 (true) when successful, non-zero otherwise
99wpa_supplicant_pre_start() {
100 local iface=${1} opts ifvar i cfgfile=/etc/wpa_supplicant.conf timeout
101
102 # We only work on wirelesss interfaces
103 wpa_supplicant_check_extensions ${iface} || return 0
104
105 ebegin "Starting wpa_supplicant on ${iface}"
106
107 if [[ ! -f ${cfgfile} ]]; then
108 eend 1 "configuration file ${cfgfile} not found!"
109 return 1
110 fi
111
112 ifvar=$( interface_variable ${1} )
113 eval opts=\" \$\{wpa_supplicant_${ifvar}\}\"
114 [[ ${opts} != *' -D'* ]] && ewarn "wpa_supplicant_${ifvar} does not define a driver"
115
116 # Kill off any existing wpa_supplicant on this interface 97# Kills any existing wpa_supplicant process on the interface
98wpa_supplicant_kill() {
99 local iface=$1 report=${2:-false}
117 local pid=$( ps --no-headers -fC wpa_supplicant 2>/dev/null | awk '/-i'${iface}'/ { print $2 }' ) 100 local pid=$( ps --no-headers -fC wpa_supplicant 2>/dev/null | awk '/-i'${iface}'/ { print $2 }' )
118 [[ -n ${pid} ]] && kill -s TERM ${pid}
119
120 # Some drivers require the interface to be up
121 interface_up ${iface}
122 101
123 if ! wpa_supplicant ${opts} -B -c/etc/wpa_supplicant.conf -i${iface} ; then 102 if [[ -n ${pid} ]]; then
124 eend 1 103 ${report} && ebegin "Stopping wpa_supplicant on ${iface}"
125 return 1 104 kill -s TERM ${pid}
105 ${report} && eend 0
126 fi 106 fi
127 107
128 eindent 108 # If wpa_supplicant exits uncleanly, we need to remove the stale dir
129 veinfo "Waiting for association" 109 [[ -d /var/run/wpa_supplicant/${iface} ]] && rm -f /var/run/wpa_supplicant/${iface}
110}
111
112# bool wpa_supplicant_associate(char *interface)
113#
114# Returns 0 if wpa_supplicant associates and authenticates to an AP
115# otherwise, 1
116wpa_supplicant_associate() {
117 local iface=${1} ifvar=$( interface_variable ${1} ) timeout i
118
130 eval timeout=\"\$\{wpa_timeout_${ifvar}:-60\}\" 119 eval timeout=\"\$\{wpa_timeout_${ifvar}:-60\}\"
131 for (( i=0; i<${timeout}; i++ )); do 120 for (( i=0; i<${timeout}; i++ )); do
132 wpa_supplicant_associated ${iface} && break 121 wpa_supplicant_associated ${iface} && break
133 sleep 1 122 sleep 1
134 done 123 done
135 if [[ ${i} == ${timeout} ]]; then 124 if [[ ${i} == ${timeout} ]]; then
136 if ! wpa_supplicant_associated ${iface}; then 125 if ! wpa_supplicant_associated ${iface}; then
137 eend 1 "timed out" 126 [[ ${background} != yes ]] && eend 1 "timed out"
138 127
139 # We now need to kill the process 128 # We now need to kill the process
140 kill -s TERM $( ps --no-headers -fC wpa_supplicant 2>/dev/null | awk '/-i'${iface}'/ { print $2 }' ) 2>/dev/null 129 wpa_supplicant_kill ${iface}
141 130
142 return 1 131 return 1
143 fi 132 fi
144 fi 133 fi
134}
135
136# bool wpa_supplicant_pre_start(char *interface)
137#
138# Start wpa_supplicant on an interface and wait for association
139# Returns 0 (true) when successful, non-zero otherwise
140wpa_supplicant_pre_start() {
141 local iface=$1 opts ifvar cfgfile=/etc/wpa_supplicant.conf timeout
142
143 # We only work on wirelesss interfaces
144 wpa_supplicant_check_extensions ${iface} || return 0
145
146 # Kill off any existing wpa_supplicant on this interface
147 # This is so we can re-read the configuration file and clean any stale
148 # directories
149 wpa_supplicant_kill ${iface} true
150
151 ebegin "Starting wpa_supplicant on ${iface}"
152
153 if [[ ! -f ${cfgfile} ]]; then
154 eend 1 "configuration file ${cfgfile} not found!"
155 return 1
156 fi
157
158 local ctrl_dir=$( awk -F# '/^ctrl_interface=/ { print $1 }' ${cfgfile} )
159 ctrl_dir=${ctrl_dir/ctrl_interface=/}
160 if [[ ${ctrl_dir} != "/var/run/wpa_supplicant" ]]; then
161 eerror "${cfgfile} must set"
162 eerror " ctrl_interface=/var/run/wpa_supplicant"
163 eend 1
164 return 1
165 fi
166
167 ifvar=$( interface_variable ${iface} )
168 eval opts=\" \$\{wpa_supplicant_${ifvar}\}\"
169 [[ ${opts} != *' -D'* ]] && ewarn "wpa_supplicant_${ifvar} does not define a driver"
170
171 # Some drivers require the interface to be up
172 interface_up ${iface}
173
174 if ! wpa_supplicant ${opts} -B -c/etc/wpa_supplicant.conf -i${iface} ; then
175 eend 1
176 return 1
177 fi
178
179 if ! wpa_cli -i${iface} status &>/dev/null ; then
180 eend 1 "wpa_supplicant has exited unexpectedly"
181 return 1
182 fi
183
184 eindent
185 veinfo "Waiting for association"
145 eend 0 186 eend 0
187
188 wpa_supplicant_associate ${iface} || return 1
146 189
147 # Set ESSID for essidnet and report 190 # Set ESSID for essidnet and report
148 ESSID=$( wpa_supplicant_get_essid ${iface} ) 191 ESSID=$( wpa_supplicant_get_essid ${iface} )
149 local -a status=( "$( wpa_cli -i${iface} status | awk -F= '/^bssid|^pairwise_cipher|^key_mgmt/ { print $2 }' )" ) 192 local -a status=( "$( wpa_cli -i${iface} status | awk -F= '/^bssid|^pairwise_cipher|^key_mgmt/ { print $2 }' )" )
150 local mac=$( echo ${status[0]} | tr '[:lower:]' '[:upper:]' ) 193 local mac=$( echo ${status[0]} | tr '[:lower:]' '[:upper:]' )
… …
167# bool wpa_supplicant_post_stop(char *iface) 210# bool wpa_supplicant_post_stop(char *iface)
168# 211#
169# Stops wpa_supplicant on an interface 212# Stops wpa_supplicant on an interface
170# Returns 0 (true) when successful, non-zero otherwise 213# Returns 0 (true) when successful, non-zero otherwise
171wpa_supplicant_post_stop() { 214wpa_supplicant_post_stop() {
172 local iface=${1} 215 wpa_supplicant_kill $1 true
173
174 # wpa_supplicant does not write to a pid file ...
175 local pid=$( ps --no-headers -fC wpa_supplicant 2>/dev/null | awk '/-i'${iface}'/ { print $2 }' )
176 [[ -z ${pid} ]] && return 0
177
178 ebegin "Stopping wpa_supplicant on ${iface}"
179 kill -s TERM ${pid}
180 eend 0
181
182 return 0 216 return 0
183} 217}
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