diff options
Diffstat (limited to 'src/network.subr')
| -rw-r--r-- | src/network.subr | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/src/network.subr b/src/network.subr new file mode 100644 index 0000000..69477bc --- /dev/null +++ b/src/network.subr @@ -0,0 +1,252 @@ +### Globals +PROFILE_DIR="/etc/network.d" + +### Messages +## +# err msg +# output specified message +err() { +echo $* +} + + +### Profile loading +## +# load_profile profile +# source the profile +load_profile() { + validate_profile $1 || return 1 + . $PROFILE_DIR/$1 +} +# validate_profile profile +# check whether profile exists and is usable +validate_profile() +{ + [ -z "$1" ] && return 1 + if [ ! -f $PROFILE_DIR/$1 ]; then + err "Profile \"$1\" does not exist" + return 1 + fi + . $PROFILE_DIR/$1 + if [ -z "$INTERFACE" ]; then + err "Profile missing an interface to configure" + return 1 + fi + if [ ! -f $SUBR_DIR/$CONNECTION.subr ]; then + err "$CONNECTION is not a valid connection, check spelling or look at examples" + return 1 + fi +} + +### Profile up/down +## +# all_down +# take all profiles down +# +all_down() +{ + ls -1 $STATE_DIR/profiles/ | while read prof; do + profile_down $prof + done +} + +# all_suspend +# store a list of running profiles and take them down +# +all_suspend() +{ + [ ! -d $STATE_DIR/suspend ] && mkdir $STATE_DIR/suspend + + ls -1 $STATE_DIR/profiles/ | while read prof; do + cp $STATE_DIR/profiles/$prof $STATE_DIR/suspend/ + profile_down $prof + done +} + +# all_suspend +# store a list of running profiles and take them down +# +all_resume() +{ + ls -1 $STATE_DIR/suspend/ | while read prof; do + profile_up $prof + rm $STATE_DIR/suspend/$prof + done +} + +# profile_up profile +# put all profiles up +# +profile_up() +{ + + load_profile $1 || return 1 + + check_profile $1 && err "$1 already connected" && return 1 + + stat_busy "$1 up" + + if check_iface $INTERFACE; then + if checkyesno $CHECK; then + err "Interface $INTERFACE already in use" + stat_fail && return 1 + else + interface_down $INTERFACE || return 1 + load_profile $1 + fi + fi + + + eval $PRE_UP || return 1 + + . $SUBR_DIR/${CONNECTION}.subr + if ! ${CONNECTION}_up $1; then + stat_fail + return 1 + fi + + eval $POST_UP || return 1 + + set_profile up $1 + ${CONNECTION}_clean_scope + add_daemon net-profiles + stat_done +} + +# profile_down profile +# take profile down +# +profile_down() +{ + load_profile $1 || return 1 + + if ! check_profile $1; then + err "Profile not connected" + return 1 + fi + + stat_busy "$1 down" + if [ "$(get_iface_prof $INTERFACE)" == "external" ]; then + err "$interface was connected by another application" + stat_fail + return 1 + fi + + eval $PRE_DOWN || return 1 + + . $SUBR_DIR/${CONNECTION}.subr + if ! ${CONNECTION}_down $1; then + stat_fail + return 1 + fi + + eval $POST_DOWN || return 1 + + set_profile down $1 + ${CONNECTION}_clean_scope + stat_done +} + +# interface_down interface +# take interface down +# +interface_down() +{ + local prof=$(get_iface_prof $1) + profile_down $prof + return $? +} + + +### Query functions +## +# check_iface interface +# Return 0 if interface up +# Return 1 if interface down +# +check_iface() { + [ -f $STATE_DIR/interfaces/$1 ] && return 0 + return 1 +} + +# get_iface_prof interface +# Echo interface profile and return 0 if up +# Return 1 if down. +# +get_iface_prof() { + if check_iface $1; then + . $STATE_DIR/interfaces/$1 + echo $PROFILE + else + return 1 + fi +} + +# check_profile profile +# Return 0 if profile up +# Return 1 if profile down +# +check_profile() { + [ -f $STATE_DIR/profiles/$1 ] && return 0 + return 1 +} + +### Status setting functions +## +# set_profile up/down profile +# Set profile state, either up or down +# +set_profile() { + if [ "$1" == "up" ]; then + . $PROFILE_DIR/$2 + cp $PROFILE_DIR/$2 $STATE_DIR/profiles/ + set_iface up $INTERFACE $2 + elif [ "$1" == "down" ]; then + . $STATE_DIR/profiles/$2 + rm $STATE_DIR/profiles/$2 + set_iface down $INTERFACE $2 + fi +} + +# set_iface up/down interface [profile] +# Set interface status to up/down +# optionally link it to a profile. +# +set_iface() { + PROFILE=$3 + [ -z "$PROFILE" ] && PROFILE=external + if [ "$1" == "up" ]; then + echo "PROFILE=$PROFILE" > $STATE_DIR/interfaces/$2 + elif [ "$1" == "down" ]; then + rm $STATE_DIR/interfaces/$2 + fi +} + + +### From FreeBSD's /etc/rc.subr +## +# checkyesno var +# Test $1 variable, and warn if not set to YES or NO. +# Return 0 if it's "yes" (et al), nonzero otherwise. +# +checkyesno() +{ + _value=${1} + #debug "checkyesno: $1 is set to $_value." + case $_value in + + # "yes", "true", "on", or "1" + [Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]|[Oo][Nn]|1) + return 0 + ;; + + # "no", "false", "off", or "0" + [Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|[Oo][Ff][Ff]|0) + return 1 + ;; + *) + #warn "\$${1} is not set properly - see ${rcvar_manpage}." + return 1 + ;; + esac +} |