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# /etc/network.d/hooks directory
#
# any +x files in /usr/lib/network/hooks and /etc/network.d/hooks
# will be sourced when this file is.
# hook files can override any of the utility functions defined here for custom behavior
# (such as logging error messages to syslog)
# this lets us keep netcfg simple but gives it the flexibility for users
# to make modular use of it to do more complex things
### Globals
PROFILE_DIR="/etc/network.d/"
HOOKS_DIR="/usr/lib/network/hooks/"
USERHOOKS_DIR="$PROFILE_DIR/hooks/"
SUBR_DIR="/usr/lib/network/"
CONN_DIR="${SUBR_DIR}/connections/"
STATE_DIR="/var/run/network/"
# Interface up/down hooks
#
function at_interface_up {
true
}
function at_interface_down {
true
}
### Logging/Error reporting
#
function report_err {
echo "$*"
}
function report_warn {
echo "$*"
}
function report_notify {
true
}
function report_debug {
[[ -n "$NETCFG_DEBUG" ]] && echo "DEBUG: $*"
}
function report_try {
echo ":: $*"
REPORT_TRYING=1
}
function report_fail {
if [[ -n "$*" ]]; then
if [[ -n "$REPORT_TRYING" ]]; then
echo "- $*"
REPORT_TRYING=
echo "[fail]"
else
echo "$*"
fi
elif [[ -n "$REPORT_TRYING" ]]; then
REPORT_TRYING=
echo "[fail]"
fi
}
function report_success {
if [[ -n "$*" ]]; then
echo "- $*"
fi
echo "[done]"
}
### For calling scripts only; don't use in library functions
function exit_stderr { echo "$*" >&2; exit 1; }
function exit_err { report_err "$*"; exit 1; }
function exit_fail { report_fail "$*"; exit 1; }
function load_hooks() {
### Load any +x files in $HOOKS_DIR and $USERHOOKS_DIR
local hook
for hook in $(find -L "$HOOKS_DIR/" "$USERHOOKS_DIR/$hook" -maxdepth 1 -type f -executable -printf '%P\n' | sort -u); do
# if there's an executable hook of this name in USERHOOKS_DIR, we only load it
if [ -x "$USERHOOKS_DIR/$hook" ]; then
source "$USERHOOKS_DIR/$hook"
else
source "$HOOKS_DIR/$hook"
fi
done
}
load_hooks
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