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
;
22 static struct blob_attr
*procd_data
;
25 static void dump_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
27 static const struct blobmsg_policy policy
= { "interface", BLOBMSG_TYPE_ARRAY
};
28 struct blob_attr
*cur
;
30 blobmsg_parse(&policy
, 1, &cur
, blob_data(msg
), blob_len(msg
));
32 interfaces
= blob_memdup(cur
);
35 static void procd_data_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
37 procd_data
= blob_memdup(msg
);
41 fw3_ubus_connect(void)
45 struct ubus_context
*ctx
= ubus_connect(NULL
);
46 struct blob_buf b
= { };
51 if (ubus_lookup_id(ctx
, "network.interface", &id
))
54 if (ubus_invoke(ctx
, id
, "dump", NULL
, dump_cb
, NULL
, 500))
59 if (ubus_lookup_id(ctx
, "service", &id
))
63 blobmsg_add_string(&b
, "type", "firewall");
64 ubus_invoke(ctx
, id
, "get_data", b
.head
, procd_data_cb
, NULL
, 2000);
74 fw3_ubus_disconnect(void)
80 static struct fw3_address
*
81 parse_subnet(enum fw3_family family
, struct blob_attr
*dict
, int rem
)
83 struct blob_attr
*cur
;
84 struct fw3_address
*addr
;
86 addr
= calloc(1, sizeof(*addr
));
91 addr
->family
= family
;
93 __blob_for_each_attr(cur
, dict
, rem
)
95 if (!strcmp(blobmsg_name(cur
), "address"))
96 inet_pton(family
== FW3_FAMILY_V4
? AF_INET
: AF_INET6
,
97 blobmsg_data(cur
), &addr
->address
.v6
);
99 else if (!strcmp(blobmsg_name(cur
), "mask"))
100 addr
->mask
= be32_to_cpu(*(uint32_t *)blobmsg_data(cur
));
107 parse_subnets(struct list_head
*head
, enum fw3_family family
,
108 struct blob_attr
*list
)
110 struct blob_attr
*cur
;
111 struct fw3_address
*addr
;
117 blob_for_each_attr(cur
, list
, rem
)
119 addr
= parse_subnet(family
, blobmsg_data(cur
), blobmsg_data_len(cur
));
122 list_add_tail(&addr
->list
, head
);
127 fw3_ubus_device(const char *net
)
135 static const struct blobmsg_policy policy
[__DEV_MAX
] = {
136 [DEV_INTERFACE
] = { "interface", BLOBMSG_TYPE_STRING
},
137 [DEV_DEVICE
] = { "device", BLOBMSG_TYPE_STRING
},
138 [DEV_L3_DEVICE
] = { "l3_device", BLOBMSG_TYPE_STRING
},
140 struct fw3_device
*dev
= NULL
;
141 struct blob_attr
*tb
[__DEV_MAX
];
142 struct blob_attr
*cur
;
146 if (!net
|| !interfaces
)
149 blobmsg_for_each_attr(cur
, interfaces
, rem
) {
150 blobmsg_parse(policy
, __DEV_MAX
, tb
, blobmsg_data(cur
), blobmsg_len(cur
));
151 if (!tb
[DEV_INTERFACE
] ||
152 strcmp(blobmsg_data(tb
[DEV_INTERFACE
]), net
) != 0)
155 if (tb
[DEV_L3_DEVICE
])
156 name
= blobmsg_data(tb
[DEV_L3_DEVICE
]);
157 else if (tb
[DEV_DEVICE
])
158 name
= blobmsg_data(tb
[DEV_DEVICE
]);
168 dev
= calloc(1, sizeof(*dev
));
173 snprintf(dev
->name
, sizeof(dev
->name
), "%s", name
);
180 fw3_ubus_address(struct list_head
*list
, const char *net
)
189 static const struct blobmsg_policy policy
[__ADDR_MAX
] = {
190 [ADDR_INTERFACE
] = { "interface", BLOBMSG_TYPE_STRING
},
191 [ADDR_IPV4
] = { "ipv4-address", BLOBMSG_TYPE_ARRAY
},
192 [ADDR_IPV6
] = { "ipv6-address", BLOBMSG_TYPE_ARRAY
},
193 [ADDR_IPV6_PREFIX
] = { "ipv6-prefix-assignment", BLOBMSG_TYPE_ARRAY
},
195 struct blob_attr
*tb
[__ADDR_MAX
];
196 struct blob_attr
*cur
;
199 if (!net
|| !interfaces
)
202 blobmsg_for_each_attr(cur
, interfaces
, rem
) {
203 blobmsg_parse(policy
, __ADDR_MAX
, tb
, blobmsg_data(cur
), blobmsg_len(cur
));
205 if (!tb
[ADDR_INTERFACE
] ||
206 strcmp(blobmsg_data(tb
[ADDR_INTERFACE
]), net
) != 0)
209 parse_subnets(list
, FW3_FAMILY_V4
, tb
[ADDR_IPV4
]);
210 parse_subnets(list
, FW3_FAMILY_V6
, tb
[ADDR_IPV6
]);
211 parse_subnets(list
, FW3_FAMILY_V6
, tb
[ADDR_IPV6_PREFIX
]);
216 fw3_ubus_zone_devices(struct fw3_zone
*zone
)
218 struct blob_attr
*c
, *cur
, *dcur
;
219 unsigned r
, rem
, drem
;
223 blobmsg_for_each_attr(c
, interfaces
, r
) {
227 blobmsg_for_each_attr(cur
, c
, rem
) {
228 if (!strcmp(blobmsg_name(cur
), "interface"))
229 name
= blobmsg_get_string(cur
);
230 else if (!strcmp(blobmsg_name(cur
), "data"))
231 blobmsg_for_each_attr(dcur
, cur
, drem
)
232 if (!strcmp(blobmsg_name(dcur
), "zone"))
233 matches
= !strcmp(blobmsg_get_string(dcur
), zone
->name
);
237 fw3_parse_device(&zone
->networks
, name
, true);
242 fw3_ubus_rules(struct blob_buf
*b
)
246 struct blob_attr
*c
, *cur
, *dcur
, *rule
, *ropt
;
247 unsigned r
, rem
, drem
, rrem
, orem
;
249 blobmsg_for_each_attr(c
, interfaces
, r
) {
250 const char *l3_device
= NULL
;
251 struct blob_attr
*data
= NULL
;
253 blobmsg_for_each_attr(cur
, c
, rem
) {
254 if (!strcmp(blobmsg_name(cur
), "l3_device"))
255 l3_device
= blobmsg_get_string(cur
);
256 else if (!strcmp(blobmsg_name(cur
), "data"))
260 if (!data
|| !l3_device
)
263 blobmsg_for_each_attr(dcur
, data
, drem
) {
264 if (strcmp(blobmsg_name(dcur
), "firewall"))
267 blobmsg_for_each_attr(rule
, dcur
, rrem
) {
268 void *k
= blobmsg_open_table(b
, "");
270 blobmsg_for_each_attr(ropt
, rule
, orem
)
271 if (strcmp(blobmsg_name(ropt
), "device"))
272 blobmsg_add_blob(b
, ropt
);
274 blobmsg_add_string(b
, "device", l3_device
);
275 blobmsg_close_table(b
, k
);
284 blobmsg_for_each_attr(c
, procd_data
, r
) {
285 if (!blobmsg_check_attr(c
, true))
289 blobmsg_for_each_attr(cur
, c
, rem
) {
290 if (!blobmsg_check_attr(cur
, true))
294 blobmsg_for_each_attr(dcur
, cur
, drem
) {
295 if (!blobmsg_check_attr(dcur
, true))
298 blobmsg_for_each_attr(rule
, dcur
, rrem
)
299 blobmsg_add_blob(b
, rule
);