14 #include <libubox/utils.h>
18 static struct blob_buf b
;
19 static int reload_pipe
[2];
20 struct list_head leases
= LIST_HEAD_INIT(leases
);
21 struct list_head interfaces
= LIST_HEAD_INIT(interfaces
);
22 struct config config
= {.legacy
= false, .main_dhcpv4
= false,
23 .dhcp_cb
= NULL
, .dhcp_statefile
= NULL
,
24 .log_level
= LOG_INFO
};
30 IFACE_ATTR_DYNAMICDHCP
,
44 IFACE_ATTR_FILTER_CLASS
,
45 IFACE_ATTR_DHCPV6_RAW
,
46 IFACE_ATTR_RA_DEFAULT
,
47 IFACE_ATTR_RA_MANAGEMENT
,
48 IFACE_ATTR_RA_OFFLINK
,
49 IFACE_ATTR_RA_PREFERENCE
,
50 IFACE_ATTR_RA_ADVROUTER
,
51 IFACE_ATTR_RA_MININTERVAL
,
52 IFACE_ATTR_RA_MAXINTERVAL
,
53 IFACE_ATTR_RA_LIFETIME
,
54 IFACE_ATTR_RA_USELEASETIME
,
55 IFACE_ATTR_RA_REACHABLETIME
,
56 IFACE_ATTR_RA_RETRANSTIME
,
57 IFACE_ATTR_RA_HOPLIMIT
,
59 IFACE_ATTR_PD_MANAGER
,
61 IFACE_ATTR_NDPROXY_ROUTING
,
62 IFACE_ATTR_NDPROXY_SLAVE
,
66 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
67 [IFACE_ATTR_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
68 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
69 [IFACE_ATTR_NETWORKID
] = { .name
= "networkid", .type
= BLOBMSG_TYPE_STRING
},
70 [IFACE_ATTR_DYNAMICDHCP
] = { .name
= "dynamicdhcp", .type
= BLOBMSG_TYPE_BOOL
},
71 [IFACE_ATTR_IGNORE
] = { .name
= "ignore", .type
= BLOBMSG_TYPE_BOOL
},
72 [IFACE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
73 [IFACE_ATTR_START
] = { .name
= "start", .type
= BLOBMSG_TYPE_INT32
},
74 [IFACE_ATTR_LIMIT
] = { .name
= "limit", .type
= BLOBMSG_TYPE_INT32
},
75 [IFACE_ATTR_MASTER
] = { .name
= "master", .type
= BLOBMSG_TYPE_BOOL
},
76 [IFACE_ATTR_UPSTREAM
] = { .name
= "upstream", .type
= BLOBMSG_TYPE_ARRAY
},
77 [IFACE_ATTR_RA
] = { .name
= "ra", .type
= BLOBMSG_TYPE_STRING
},
78 [IFACE_ATTR_DHCPV4
] = { .name
= "dhcpv4", .type
= BLOBMSG_TYPE_STRING
},
79 [IFACE_ATTR_DHCPV6
] = { .name
= "dhcpv6", .type
= BLOBMSG_TYPE_STRING
},
80 [IFACE_ATTR_NDP
] = { .name
= "ndp", .type
= BLOBMSG_TYPE_STRING
},
81 [IFACE_ATTR_ROUTER
] = { .name
= "router", .type
= BLOBMSG_TYPE_ARRAY
},
82 [IFACE_ATTR_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
83 [IFACE_ATTR_DOMAIN
] = { .name
= "domain", .type
= BLOBMSG_TYPE_ARRAY
},
84 [IFACE_ATTR_FILTER_CLASS
] = { .name
= "filter_class", .type
= BLOBMSG_TYPE_STRING
},
85 [IFACE_ATTR_DHCPV6_RAW
] = { .name
= "dhcpv6_raw", .type
= BLOBMSG_TYPE_STRING
},
86 [IFACE_ATTR_PD_MANAGER
] = { .name
= "pd_manager", .type
= BLOBMSG_TYPE_STRING
},
87 [IFACE_ATTR_PD_CER
] = { .name
= "pd_cer", .type
= BLOBMSG_TYPE_STRING
},
88 [IFACE_ATTR_RA_DEFAULT
] = { .name
= "ra_default", .type
= BLOBMSG_TYPE_INT32
},
89 [IFACE_ATTR_RA_MANAGEMENT
] = { .name
= "ra_management", .type
= BLOBMSG_TYPE_INT32
},
90 [IFACE_ATTR_RA_OFFLINK
] = { .name
= "ra_offlink", .type
= BLOBMSG_TYPE_BOOL
},
91 [IFACE_ATTR_RA_PREFERENCE
] = { .name
= "ra_preference", .type
= BLOBMSG_TYPE_STRING
},
92 [IFACE_ATTR_RA_ADVROUTER
] = { .name
= "ra_advrouter", .type
= BLOBMSG_TYPE_BOOL
},
93 [IFACE_ATTR_RA_MININTERVAL
] = { .name
= "ra_mininterval", .type
= BLOBMSG_TYPE_INT32
},
94 [IFACE_ATTR_RA_MAXINTERVAL
] = { .name
= "ra_maxinterval", .type
= BLOBMSG_TYPE_INT32
},
95 [IFACE_ATTR_RA_LIFETIME
] = { .name
= "ra_lifetime", .type
= BLOBMSG_TYPE_INT32
},
96 [IFACE_ATTR_RA_USELEASETIME
] = { .name
= "ra_useleasetime", .type
= BLOBMSG_TYPE_BOOL
},
97 [IFACE_ATTR_RA_REACHABLETIME
] = { .name
= "ra_reachabletime", .type
= BLOBMSG_TYPE_INT32
},
98 [IFACE_ATTR_RA_RETRANSTIME
] = { .name
= "ra_retranstime", .type
= BLOBMSG_TYPE_INT32
},
99 [IFACE_ATTR_RA_HOPLIMIT
] = { .name
= "ra_hoplimit", .type
= BLOBMSG_TYPE_INT32
},
100 [IFACE_ATTR_RA_MTU
] = { .name
= "ra_mtu", .type
= BLOBMSG_TYPE_INT32
},
101 [IFACE_ATTR_NDPROXY_ROUTING
] = { .name
= "ndproxy_routing", .type
= BLOBMSG_TYPE_BOOL
},
102 [IFACE_ATTR_NDPROXY_SLAVE
] = { .name
= "ndproxy_slave", .type
= BLOBMSG_TYPE_BOOL
},
105 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
106 [IFACE_ATTR_UPSTREAM
] = { .type
= BLOBMSG_TYPE_STRING
},
107 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
108 [IFACE_ATTR_DOMAIN
] = { .type
= BLOBMSG_TYPE_STRING
},
111 const struct uci_blob_param_list interface_attr_list
= {
112 .n_params
= IFACE_ATTR_MAX
,
113 .params
= iface_attrs
,
114 .info
= iface_attr_info
,
122 LEASE_ATTR_LEASETIME
,
127 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
128 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
129 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
130 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
131 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
132 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
133 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
136 const struct uci_blob_param_list lease_attr_list
= {
137 .n_params
= LEASE_ATTR_MAX
,
138 .params
= lease_attrs
,
143 ODHCPD_ATTR_MAINDHCP
,
144 ODHCPD_ATTR_LEASEFILE
,
145 ODHCPD_ATTR_LEASETRIGGER
,
146 ODHCPD_ATTR_LOGLEVEL
,
150 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
151 [ODHCPD_ATTR_LEGACY
] = { .name
= "legacy", .type
= BLOBMSG_TYPE_BOOL
},
152 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
153 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
154 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
155 [ODHCPD_ATTR_LOGLEVEL
] = { .name
= "loglevel", .type
= BLOBMSG_TYPE_INT32
},
158 const struct uci_blob_param_list odhcpd_attr_list
= {
159 .n_params
= ODHCPD_ATTR_MAX
,
160 .params
= odhcpd_attrs
,
163 static int mkdir_p(char *dir
, mode_t mask
)
165 char *l
= strrchr(dir
, '/');
173 if (mkdir_p(dir
, mask
))
178 ret
= mkdir(dir
, mask
);
179 if (ret
&& errno
== EEXIST
)
183 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
188 static void free_lease(struct lease
*l
)
197 static struct interface
* get_interface(const char *name
)
200 list_for_each_entry(c
, &interfaces
, head
)
201 if (!strcmp(c
->name
, name
))
206 static void set_interface_defaults(struct interface
*iface
)
209 iface
->learn_routes
= 1;
210 iface
->dhcpv4_leasetime
= 43200;
211 iface
->ra_maxinterval
= 600;
212 iface
->ra_mininterval
= iface
->ra_maxinterval
/3;
213 iface
->ra_lifetime
= -1;
216 static void clean_interface(struct interface
*iface
)
220 free(iface
->upstream
);
221 free(iface
->dhcpv4_router
);
222 free(iface
->dhcpv4_dns
);
223 free(iface
->dhcpv6_raw
);
224 free(iface
->filter_class
);
225 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
226 set_interface_defaults(iface
);
229 static void close_interface(struct interface
*iface
)
231 if (iface
->head
.next
)
232 list_del(&iface
->head
);
234 setup_router_interface(iface
, false);
235 setup_dhcpv6_interface(iface
, false);
236 setup_ndp_interface(iface
, false);
237 setup_dhcpv4_interface(iface
, false);
239 clean_interface(iface
);
244 static int parse_mode(const char *mode
)
246 if (!strcmp(mode
, "disabled"))
247 return RELAYD_DISABLED
;
248 else if (!strcmp(mode
, "server"))
249 return RELAYD_SERVER
;
250 else if (!strcmp(mode
, "relay"))
252 else if (!strcmp(mode
, "hybrid"))
253 return RELAYD_HYBRID
;
258 static void set_config(struct uci_section
*s
)
260 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
262 blob_buf_init(&b
, 0);
263 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
264 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
266 if ((c
= tb
[ODHCPD_ATTR_LEGACY
]))
267 config
.legacy
= blobmsg_get_bool(c
);
269 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
270 config
.main_dhcpv4
= blobmsg_get_bool(c
);
272 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
273 free(config
.dhcp_statefile
);
274 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
277 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
278 free(config
.dhcp_cb
);
279 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
282 if ((c
= tb
[ODHCPD_ATTR_LOGLEVEL
])) {
283 int log_level
= (blobmsg_get_u32(c
) & LOG_PRIMASK
);
285 if (config
.log_level
!= log_level
) {
286 config
.log_level
= log_level
;
287 setlogmask(LOG_UPTO(config
.log_level
));
292 static double parse_leasetime(struct blob_attr
*c
) {
293 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
294 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
296 if (time
&& endptr
&& endptr
[0]) {
297 if (endptr
[0] == 's')
299 else if (endptr
[0] == 'm')
301 else if (endptr
[0] == 'h')
303 else if (endptr
[0] == 'd')
305 else if (endptr
[0] == 'w')
306 time
*= 7 * 24 * 3600;
320 static int set_lease(struct uci_section
*s
)
322 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
324 blob_buf_init(&b
, 0);
325 uci_to_blob(&b
, s
, &lease_attr_list
);
326 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
329 if ((c
= tb
[LEASE_ATTR_NAME
]))
330 hostlen
= blobmsg_data_len(c
);
332 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
337 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
339 if ((c
= tb
[LEASE_ATTR_IP
]))
340 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
343 if ((c
= tb
[LEASE_ATTR_MAC
]))
344 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
347 if ((c
= tb
[LEASE_ATTR_DUID
])) {
348 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
349 lease
->duid
= malloc(duidlen
);
353 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
354 duidlen
, blobmsg_get_string(c
));
359 lease
->duid_len
= len
;
362 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
364 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
369 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
370 double time
= parse_leasetime(c
);
374 lease
->dhcpv4_leasetime
= time
;
377 list_add(&lease
->head
, &leases
);
387 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
389 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
390 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
392 if (tb
[IFACE_ATTR_INTERFACE
])
393 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
398 struct interface
*iface
= get_interface(name
);
402 iface
= calloc_a(sizeof(*iface
), &iface_name
, strlen(name
) + 1);
406 iface
->name
= strcpy(iface_name
, name
);
408 set_interface_defaults(iface
);
410 list_add(&iface
->head
, &interfaces
);
414 const char *ifname
= NULL
;
416 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
417 ifname
= blobmsg_get_string(c
);
418 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
419 ifname
= blobmsg_get_string(c
);
423 if (overwrite
|| !iface
->ifname
)
424 ifname
= ubus_get_ifname(name
);
427 if (!iface
->ifname
&& !ifname
)
432 iface
->ifname
= strdup(ifname
);
438 if ((iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
443 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
444 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
446 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
447 iface
->ignore
= blobmsg_get_bool(c
);
449 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
450 double time
= parse_leasetime(c
);
454 iface
->dhcpv4_leasetime
= time
;
457 if ((c
= tb
[IFACE_ATTR_START
])) {
458 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
460 if (config
.main_dhcpv4
&& config
.legacy
)
461 iface
->dhcpv4
= RELAYD_SERVER
;
464 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
465 iface
->dhcpv4_end
.s_addr
= htonl(
466 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
468 if ((c
= tb
[IFACE_ATTR_MASTER
]))
469 iface
->master
= blobmsg_get_bool(c
);
471 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
472 struct blob_attr
*cur
;
475 blobmsg_for_each_attr(cur
, c
, rem
) {
476 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
479 iface
->upstream
= realloc(iface
->upstream
,
480 iface
->upstream_len
+ blobmsg_data_len(cur
));
481 if (!iface
->upstream
)
484 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
485 iface
->upstream_len
+= blobmsg_data_len(cur
);
490 if ((c
= tb
[IFACE_ATTR_RA
])) {
491 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
497 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
498 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0) {
499 if (config
.main_dhcpv4
)
500 iface
->dhcpv4
= mode
;
506 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
507 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
508 iface
->dhcpv6
= mode
;
513 if ((c
= tb
[IFACE_ATTR_NDP
])) {
514 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
520 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
521 struct blob_attr
*cur
;
524 blobmsg_for_each_attr(cur
, c
, rem
) {
525 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
528 struct in_addr addr4
;
529 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
530 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
531 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
532 if (!iface
->dhcpv4_router
)
535 iface
->dhcpv4_router
[iface
->dhcpv4_router_cnt
- 1] = addr4
;
541 if ((c
= tb
[IFACE_ATTR_DNS
])) {
542 struct blob_attr
*cur
;
545 iface
->always_rewrite_dns
= true;
546 blobmsg_for_each_attr(cur
, c
, rem
) {
547 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
550 struct in_addr addr4
;
551 struct in6_addr addr6
;
552 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
553 iface
->dhcpv4_dns
= realloc(iface
->dhcpv4_dns
,
554 (++iface
->dhcpv4_dns_cnt
) * sizeof(*iface
->dhcpv4_dns
));
555 if (!iface
->dhcpv4_dns
)
558 iface
->dhcpv4_dns
[iface
->dhcpv4_dns_cnt
- 1] = addr4
;
559 } else if (inet_pton(AF_INET6
, blobmsg_get_string(cur
), &addr6
) == 1) {
560 iface
->dns
= realloc(iface
->dns
,
561 (++iface
->dns_cnt
) * sizeof(*iface
->dns
));
565 iface
->dns
[iface
->dns_cnt
- 1] = addr6
;
571 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
572 struct blob_attr
*cur
;
575 blobmsg_for_each_attr(cur
, c
, rem
) {
576 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
580 char *domain
= blobmsg_get_string(cur
);
581 size_t domainlen
= strlen(domain
);
582 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
583 domain
[domainlen
- 1] = 0;
585 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
589 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
593 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
594 iface
->search_len
+= len
;
598 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
599 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
600 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
603 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
604 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
605 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
606 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
609 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
610 iface
->default_router
= blobmsg_get_u32(c
);
612 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
613 iface
->managed
= blobmsg_get_u32(c
);
615 if ((c
= tb
[IFACE_ATTR_RA_REACHABLETIME
])) {
616 uint32_t ra_reachabletime
= blobmsg_get_u32(c
);
617 if (ra_reachabletime
> 3600000)
620 iface
->ra_reachabletime
= ra_reachabletime
;
623 if ((c
= tb
[IFACE_ATTR_RA_RETRANSTIME
])) {
624 uint32_t ra_retranstime
= blobmsg_get_u32(c
);
625 if (ra_retranstime
> 60000)
628 iface
->ra_retranstime
= ra_retranstime
;
631 if ((c
= tb
[IFACE_ATTR_RA_HOPLIMIT
])) {
632 uint32_t ra_hoplimit
= blobmsg_get_u32(c
);
633 if (ra_hoplimit
> 255)
636 iface
->ra_hoplimit
= ra_hoplimit
;
639 if ((c
= tb
[IFACE_ATTR_RA_MTU
])) {
640 uint32_t ra_mtu
= blobmsg_get_u32(c
);
641 if (ra_mtu
< 1280 || ra_mtu
> 65535)
644 iface
->ra_mtu
= ra_mtu
;
647 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
648 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
650 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
651 iface
->ra_advrouter
= blobmsg_get_bool(c
);
653 if ((c
= tb
[IFACE_ATTR_RA_MININTERVAL
]))
654 iface
->ra_mininterval
= blobmsg_get_u32(c
);
656 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
657 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
659 if ((c
= tb
[IFACE_ATTR_RA_LIFETIME
]))
660 iface
->ra_lifetime
= blobmsg_get_u32(c
);
662 if ((c
= tb
[IFACE_ATTR_RA_USELEASETIME
]))
663 iface
->ra_useleasetime
= blobmsg_get_bool(c
);
665 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
666 const char *prio
= blobmsg_get_string(c
);
668 if (!strcmp(prio
, "high"))
669 iface
->route_preference
= 1;
670 else if (!strcmp(prio
, "low"))
671 iface
->route_preference
= -1;
672 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
673 iface
->route_preference
= 0;
678 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
679 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
680 sizeof(iface
->dhcpv6_pd_manager
) - 1);
682 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
683 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
686 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
687 iface
->learn_routes
= blobmsg_get_bool(c
);
689 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
690 iface
->external
= blobmsg_get_bool(c
);
695 close_interface(iface
);
699 static int set_interface(struct uci_section
*s
)
701 blob_buf_init(&b
, 0);
702 uci_to_blob(&b
, s
, &interface_attr_list
);
704 return config_parse_interface(blob_data(b
.head
), blob_len(b
.head
), s
->e
.name
, true);
707 void odhcpd_reload(void)
709 struct uci_context
*uci
= uci_alloc_context();
711 while (!list_empty(&leases
))
712 free_lease(list_first_entry(&leases
, struct lease
, head
));
714 struct interface
*master
= NULL
, *i
, *n
;
719 list_for_each_entry(i
, &interfaces
, head
)
722 struct uci_package
*dhcp
= NULL
;
723 if (!uci_load(uci
, "dhcp", &dhcp
)) {
724 struct uci_element
*e
;
725 uci_foreach_element(&dhcp
->sections
, e
) {
726 struct uci_section
*s
= uci_to_section(e
);
727 if (!strcmp(s
->type
, "host"))
729 else if (!strcmp(s
->type
, "odhcpd"))
733 uci_foreach_element(&dhcp
->sections
, e
) {
734 struct uci_section
*s
= uci_to_section(e
);
735 if (!strcmp(s
->type
, "dhcp"))
740 if (config
.dhcp_statefile
) {
741 char *path
= strdup(config
.dhcp_statefile
);
743 mkdir_p(dirname(path
), 0755);
748 ubus_apply_network();
751 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
754 list_for_each_entry(i
, &interfaces
, head
) {
758 if (i
->dhcpv6
== RELAYD_HYBRID
|| i
->dhcpv6
== RELAYD_RELAY
)
759 any_dhcpv6_slave
= true;
761 if (i
->ra
== RELAYD_HYBRID
|| i
->ra
== RELAYD_RELAY
)
764 if (i
->ndp
== RELAYD_HYBRID
|| i
->ndp
== RELAYD_RELAY
)
765 any_ndp_slave
= true;
768 /* Evaluate hybrid mode for master */
769 list_for_each_entry(i
, &interfaces
, head
) {
773 enum odhcpd_mode hybrid_mode
= RELAYD_DISABLED
;
775 if (!ubus_has_prefix(i
->name
, i
->ifname
))
776 hybrid_mode
= RELAYD_RELAY
;
779 if (i
->dhcpv6
== RELAYD_HYBRID
)
780 i
->dhcpv6
= hybrid_mode
;
782 if (i
->dhcpv6
== RELAYD_RELAY
&& !any_dhcpv6_slave
)
783 i
->dhcpv6
= RELAYD_DISABLED
;
785 if (i
->ra
== RELAYD_HYBRID
)
788 if (i
->ra
== RELAYD_RELAY
&& !any_ra_slave
)
789 i
->ra
= RELAYD_DISABLED
;
791 if (i
->ndp
== RELAYD_HYBRID
)
792 i
->ndp
= hybrid_mode
;
794 if (i
->ndp
== RELAYD_RELAY
&& !any_ndp_slave
)
795 i
->ndp
= RELAYD_DISABLED
;
797 if (i
->dhcpv6
== RELAYD_RELAY
|| i
->ra
== RELAYD_RELAY
|| i
->ndp
== RELAYD_RELAY
)
802 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
804 /* Resolve hybrid mode */
805 if (i
->dhcpv6
== RELAYD_HYBRID
)
806 i
->dhcpv6
= (master
&& master
->dhcpv6
== RELAYD_RELAY
) ?
807 RELAYD_RELAY
: RELAYD_SERVER
;
809 if (i
->ra
== RELAYD_HYBRID
)
810 i
->ra
= (master
&& master
->ra
== RELAYD_RELAY
) ?
811 RELAYD_RELAY
: RELAYD_SERVER
;
813 if (i
->ndp
== RELAYD_HYBRID
)
814 i
->ndp
= (master
&& master
->ndp
== RELAYD_RELAY
) ?
815 RELAYD_RELAY
: RELAYD_DISABLED
;
817 setup_router_interface(i
, !i
->ignore
|| i
->ra
!= RELAYD_DISABLED
);
818 setup_dhcpv6_interface(i
, !i
->ignore
|| i
->dhcpv6
!= RELAYD_DISABLED
);
819 setup_ndp_interface(i
, !i
->ignore
|| i
->ndp
!= RELAYD_DISABLED
);
820 setup_dhcpv4_interface(i
, !i
->ignore
|| i
->dhcpv4
!= RELAYD_DISABLED
);
825 ndp_handle_addr6_dump();
826 uci_unload(uci
, dhcp
);
827 uci_free_context(uci
);
830 static void handle_signal(int signal
)
834 if (signal
== SIGHUP
) {
835 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
840 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
843 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
848 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
850 void odhcpd_run(void)
852 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
854 reload_fd
.fd
= reload_pipe
[0];
855 uloop_fd_add(&reload_fd
, ULOOP_READ
);
857 signal(SIGTERM
, handle_signal
);
858 signal(SIGINT
, handle_signal
);
859 signal(SIGHUP
, handle_signal
);
869 while (!list_empty(&interfaces
))
870 close_interface(list_first_entry(&interfaces
, struct interface
, head
));