2 * firewall3 - 3rd OpenWrt UCI firewall implementation
4 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 static struct blob_attr *interfaces = NULL;
24 static void dump_cb(struct ubus_request *req, int type, struct blob_attr *msg)
26 struct blob_attr *cur;
27 unsigned rem = blob_len(msg);
28 __blob_for_each_attr(cur, blob_data(msg), rem)
29 if (!strcmp(blobmsg_name(cur), "interface"))
30 interfaces = blob_memdup(cur);
34 fw3_ubus_connect(void)
38 struct ubus_context *ctx = ubus_connect(NULL);
43 if (ubus_lookup_id(ctx, "network.interface", &id))
46 if (ubus_invoke(ctx, id, "dump", NULL, dump_cb, NULL, 500))
58 fw3_ubus_disconnect(void)
64 static struct fw3_address *
65 parse_subnet(enum fw3_family family, struct blob_attr *dict, int rem)
67 struct blob_attr *cur;
68 struct fw3_address *addr;
70 addr = malloc(sizeof(*addr));
75 memset(addr, 0, sizeof(*addr));
78 addr->family = family;
80 __blob_for_each_attr(cur, dict, rem)
82 if (!strcmp(blobmsg_name(cur), "address"))
83 inet_pton(family == FW3_FAMILY_V4 ? AF_INET : AF_INET6,
84 blobmsg_data(cur), &addr->address.v6);
86 else if (!strcmp(blobmsg_name(cur), "mask"))
87 addr->mask = be32_to_cpu(*(uint32_t *)blobmsg_data(cur));
94 parse_subnets(struct list_head *head, enum fw3_family family,
95 struct blob_attr *list, int rem)
97 struct blob_attr *cur;
98 struct fw3_address *addr;
100 __blob_for_each_attr(cur, list, rem)
102 addr = parse_subnet(family, blobmsg_data(cur), blobmsg_data_len(cur));
105 list_add_tail(&addr->list, head);
110 invoke_common(const char *net, bool device)
112 struct fw3_device *dev = NULL;
113 struct list_head *addr = NULL;
114 struct blob_attr *c, *cur;
119 if (!net || !interfaces)
123 dev = malloc(sizeof(*dev));
125 addr = malloc(sizeof(*addr));
127 if ((device && !dev) || (!device && !addr))
131 memset(dev, 0, sizeof(*dev));
133 INIT_LIST_HEAD(addr);
135 blobmsg_for_each_attr(c, interfaces, r) {
137 blobmsg_for_each_attr(cur, c, rem)
138 if (!strcmp(blobmsg_name(cur), "interface"))
139 matched = !strcmp(blobmsg_get_string(cur), net);
144 blobmsg_for_each_attr(cur, c, rem) {
145 data = blobmsg_data(cur);
147 if (dev && !strcmp(blobmsg_name(cur), "device") && !dev->name[0])
148 snprintf(dev->name, sizeof(dev->name), "%s", data);
149 else if (dev && !strcmp(blobmsg_name(cur), "l3_device"))
150 snprintf(dev->name, sizeof(dev->name), "%s", data);
151 else if (!dev && !strcmp(blobmsg_name(cur), "ipv4-address"))
152 parse_subnets(addr, FW3_FAMILY_V4,
153 blobmsg_data(cur), blobmsg_data_len(cur));
154 else if (!dev && (!strcmp(blobmsg_name(cur), "ipv6-address") ||
155 !strcmp(blobmsg_name(cur), "ipv6-prefix-assignment")))
156 parse_subnets(addr, FW3_FAMILY_V6,
157 blobmsg_data(cur), blobmsg_data_len(cur));
161 dev->set = !!dev->name[0];
166 if (device && dev->set)
168 else if (!device && !list_empty(addr))
179 fw3_ubus_device(const char *net)
181 return invoke_common(net, true);
185 fw3_ubus_address(const char *net)
187 return invoke_common(net, false);
191 fw3_ubus_zone_devices(struct fw3_zone *zone)
193 struct blob_attr *c, *cur, *dcur;
194 unsigned r, rem, drem;
198 blobmsg_for_each_attr(c, interfaces, r) {
202 blobmsg_for_each_attr(cur, c, rem) {
203 if (!strcmp(blobmsg_name(cur), "interface"))
204 name = blobmsg_get_string(cur);
205 else if (!strcmp(blobmsg_name(cur), "data"))
206 blobmsg_for_each_attr(dcur, cur, drem)
207 if (!strcmp(blobmsg_name(dcur), "zone"))
208 matches = !strcmp(blobmsg_get_string(dcur), zone->name);
212 fw3_parse_device(&zone->networks, name, true);