Revision of gistfile1.txt

1 file changed, 65 insertions

gistfile1.txt(file created)

		@@ -0,0 +1,65 @@
1	+	#!/usr/bin/env bash
2	+
3	+	# ============================================
4	+	# IP Assignment
5	+	# ============================================
6	+
7	+	function ip::assigned() {
8	+	grep -h "^Address" "$(ctx::clients)"/*.conf 2>/dev/null \
9	+	\| awk '{print $3}' \
10	+	\| cut -d'/' -f1
11	+	}
12	+
13	+	function ip::is_assigned() {
14	+	local candidate="$1"
15	+	ip::assigned \| grep -q "^${candidate}$"
16	+	}
17	+
18	+	function ip::next_for_type() {
19	+	local type="$1"
20	+	local subnet
21	+	subnet=$(config::subnet_for "$type")
22	+
23	+	if [[ -z "$subnet" ]]; then
24	+	log::error "Unknown device type: ${type}"
25	+	return 1
26	+	fi
27	+
28	+	for i in $(seq 1 254); do
29	+	local candidate="${subnet}.${i}"
30	+	if ! ip::is_assigned "$candidate"; then
31	+	echo "$candidate"
32	+	return 0
33	+	fi
34	+	done
35	+
36	+	log::error "No available IPs in subnet ${subnet}.0/24"
37	+	return 1
38	+	}
39	+
40	+	# ============================================
41	+	# Validation
42	+	# ============================================
43	+
44	+	function ip::is_valid() {
45	+	local ip="$1"
46	+	[[ "$ip" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}(/([0-9]\|[1-2][0-9]\|3[0-2]))?$ ]]
47	+	}
48	+
49	+	function ip::is_cidr() {
50	+	[[ "$1" == "/" ]]
51	+	}
52	+
53	+	function ip::validate() {
54	+	local ip="$1"
55	+	if ! ip::is_valid "$ip"; then
56	+	log::error "Invalid IP or CIDR: ${ip}"
57	+	return 1
58	+	fi
59	+	return 0
60	+	}
61	+
62	+	function ip::require_valid() {
63	+	local ip="$1"
64	+	ip::validate "$ip" \|\| exit 1
65	+	}

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