16 static struct blob_buf b
;
17 static int reload_pipe
[2];
18 struct list_head leases
= LIST_HEAD_INIT(leases
);
19 struct list_head interfaces
= LIST_HEAD_INIT(interfaces
);
20 struct config config
= {.legacy
= false, .main_dhcpv4
= false,
21 .dhcp_cb
= NULL
, .dhcp_statefile
= NULL
,
22 .log_level
= LOG_INFO
};
28 IFACE_ATTR_DYNAMICDHCP
,
42 IFACE_ATTR_FILTER_CLASS
,
43 IFACE_ATTR_DHCPV6_RAW
,
44 IFACE_ATTR_RA_DEFAULT
,
45 IFACE_ATTR_RA_MANAGEMENT
,
46 IFACE_ATTR_RA_OFFLINK
,
47 IFACE_ATTR_RA_PREFERENCE
,
48 IFACE_ATTR_RA_ADVROUTER
,
49 IFACE_ATTR_RA_MININTERVAL
,
50 IFACE_ATTR_RA_MAXINTERVAL
,
51 IFACE_ATTR_RA_LIFETIME
,
52 IFACE_ATTR_RA_USELEASETIME
,
53 IFACE_ATTR_RA_HOPLIMIT
,
55 IFACE_ATTR_PD_MANAGER
,
57 IFACE_ATTR_NDPROXY_ROUTING
,
58 IFACE_ATTR_NDPROXY_SLAVE
,
62 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
63 [IFACE_ATTR_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
64 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
65 [IFACE_ATTR_NETWORKID
] = { .name
= "networkid", .type
= BLOBMSG_TYPE_STRING
},
66 [IFACE_ATTR_DYNAMICDHCP
] = { .name
= "dynamicdhcp", .type
= BLOBMSG_TYPE_BOOL
},
67 [IFACE_ATTR_IGNORE
] = { .name
= "ignore", .type
= BLOBMSG_TYPE_BOOL
},
68 [IFACE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
69 [IFACE_ATTR_START
] = { .name
= "start", .type
= BLOBMSG_TYPE_INT32
},
70 [IFACE_ATTR_LIMIT
] = { .name
= "limit", .type
= BLOBMSG_TYPE_INT32
},
71 [IFACE_ATTR_MASTER
] = { .name
= "master", .type
= BLOBMSG_TYPE_BOOL
},
72 [IFACE_ATTR_UPSTREAM
] = { .name
= "upstream", .type
= BLOBMSG_TYPE_ARRAY
},
73 [IFACE_ATTR_RA
] = { .name
= "ra", .type
= BLOBMSG_TYPE_STRING
},
74 [IFACE_ATTR_DHCPV4
] = { .name
= "dhcpv4", .type
= BLOBMSG_TYPE_STRING
},
75 [IFACE_ATTR_DHCPV6
] = { .name
= "dhcpv6", .type
= BLOBMSG_TYPE_STRING
},
76 [IFACE_ATTR_NDP
] = { .name
= "ndp", .type
= BLOBMSG_TYPE_STRING
},
77 [IFACE_ATTR_ROUTER
] = { .name
= "router", .type
= BLOBMSG_TYPE_ARRAY
},
78 [IFACE_ATTR_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
79 [IFACE_ATTR_DOMAIN
] = { .name
= "domain", .type
= BLOBMSG_TYPE_ARRAY
},
80 [IFACE_ATTR_FILTER_CLASS
] = { .name
= "filter_class", .type
= BLOBMSG_TYPE_STRING
},
81 [IFACE_ATTR_DHCPV6_RAW
] = { .name
= "dhcpv6_raw", .type
= BLOBMSG_TYPE_STRING
},
82 [IFACE_ATTR_PD_MANAGER
] = { .name
= "pd_manager", .type
= BLOBMSG_TYPE_STRING
},
83 [IFACE_ATTR_PD_CER
] = { .name
= "pd_cer", .type
= BLOBMSG_TYPE_STRING
},
84 [IFACE_ATTR_RA_DEFAULT
] = { .name
= "ra_default", .type
= BLOBMSG_TYPE_INT32
},
85 [IFACE_ATTR_RA_MANAGEMENT
] = { .name
= "ra_management", .type
= BLOBMSG_TYPE_INT32
},
86 [IFACE_ATTR_RA_OFFLINK
] = { .name
= "ra_offlink", .type
= BLOBMSG_TYPE_BOOL
},
87 [IFACE_ATTR_RA_PREFERENCE
] = { .name
= "ra_preference", .type
= BLOBMSG_TYPE_STRING
},
88 [IFACE_ATTR_RA_ADVROUTER
] = { .name
= "ra_advrouter", .type
= BLOBMSG_TYPE_BOOL
},
89 [IFACE_ATTR_RA_MININTERVAL
] = { .name
= "ra_mininterval", .type
= BLOBMSG_TYPE_INT32
},
90 [IFACE_ATTR_RA_MAXINTERVAL
] = { .name
= "ra_maxinterval", .type
= BLOBMSG_TYPE_INT32
},
91 [IFACE_ATTR_RA_LIFETIME
] = { .name
= "ra_lifetime", .type
= BLOBMSG_TYPE_INT32
},
92 [IFACE_ATTR_RA_USELEASETIME
] = { .name
= "ra_useleasetime", .type
= BLOBMSG_TYPE_BOOL
},
93 [IFACE_ATTR_RA_HOPLIMIT
] = { .name
= "ra_hoplimit", .type
= BLOBMSG_TYPE_INT32
},
94 [IFACE_ATTR_RA_MTU
] = { .name
= "ra_mtu", .type
= BLOBMSG_TYPE_INT32
},
95 [IFACE_ATTR_NDPROXY_ROUTING
] = { .name
= "ndproxy_routing", .type
= BLOBMSG_TYPE_BOOL
},
96 [IFACE_ATTR_NDPROXY_SLAVE
] = { .name
= "ndproxy_slave", .type
= BLOBMSG_TYPE_BOOL
},
99 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
100 [IFACE_ATTR_UPSTREAM
] = { .type
= BLOBMSG_TYPE_STRING
},
101 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
102 [IFACE_ATTR_DOMAIN
] = { .type
= BLOBMSG_TYPE_STRING
},
105 const struct uci_blob_param_list interface_attr_list
= {
106 .n_params
= IFACE_ATTR_MAX
,
107 .params
= iface_attrs
,
108 .info
= iface_attr_info
,
116 LEASE_ATTR_LEASETIME
,
121 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
122 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
123 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
124 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
125 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
126 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
127 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
130 const struct uci_blob_param_list lease_attr_list
= {
131 .n_params
= LEASE_ATTR_MAX
,
132 .params
= lease_attrs
,
137 ODHCPD_ATTR_MAINDHCP
,
138 ODHCPD_ATTR_LEASEFILE
,
139 ODHCPD_ATTR_LEASETRIGGER
,
140 ODHCPD_ATTR_LOGLEVEL
,
144 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
145 [ODHCPD_ATTR_LEGACY
] = { .name
= "legacy", .type
= BLOBMSG_TYPE_BOOL
},
146 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
147 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
148 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
149 [ODHCPD_ATTR_LOGLEVEL
] = { .name
= "loglevel", .type
= BLOBMSG_TYPE_INT32
},
152 const struct uci_blob_param_list odhcpd_attr_list
= {
153 .n_params
= ODHCPD_ATTR_MAX
,
154 .params
= odhcpd_attrs
,
157 static int mkdir_p(char *dir
, mode_t mask
)
159 char *l
= strrchr(dir
, '/');
167 if (mkdir_p(dir
, mask
))
172 ret
= mkdir(dir
, mask
);
173 if (ret
&& errno
== EEXIST
)
177 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
182 static void free_lease(struct lease
*l
)
191 static struct interface
* get_interface(const char *name
)
194 list_for_each_entry(c
, &interfaces
, head
)
195 if (!strcmp(c
->name
, name
))
200 static void set_interface_defaults(struct interface
*iface
)
203 iface
->learn_routes
= 1;
204 iface
->dhcpv4_leasetime
= 43200;
205 iface
->ra_maxinterval
= 600;
206 iface
->ra_mininterval
= iface
->ra_maxinterval
/3;
207 iface
->ra_lifetime
= -1;
210 static void clean_interface(struct interface
*iface
)
214 free(iface
->upstream
);
215 free(iface
->dhcpv4_router
);
216 free(iface
->dhcpv4_dns
);
217 free(iface
->dhcpv6_raw
);
218 free(iface
->filter_class
);
219 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
220 set_interface_defaults(iface
);
223 static void close_interface(struct interface
*iface
)
225 if (iface
->head
.next
)
226 list_del(&iface
->head
);
228 setup_router_interface(iface
, false);
229 setup_dhcpv6_interface(iface
, false);
230 setup_ndp_interface(iface
, false);
231 setup_dhcpv4_interface(iface
, false);
233 clean_interface(iface
);
237 static int parse_mode(const char *mode
)
239 if (!strcmp(mode
, "disabled"))
240 return RELAYD_DISABLED
;
241 else if (!strcmp(mode
, "server"))
242 return RELAYD_SERVER
;
243 else if (!strcmp(mode
, "relay"))
245 else if (!strcmp(mode
, "hybrid"))
246 return RELAYD_HYBRID
;
251 static void set_config(struct uci_section
*s
)
253 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
255 blob_buf_init(&b
, 0);
256 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
257 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
259 if ((c
= tb
[ODHCPD_ATTR_LEGACY
]))
260 config
.legacy
= blobmsg_get_bool(c
);
262 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
263 config
.main_dhcpv4
= blobmsg_get_bool(c
);
265 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
266 free(config
.dhcp_statefile
);
267 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
270 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
271 free(config
.dhcp_cb
);
272 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
275 if ((c
= tb
[ODHCPD_ATTR_LOGLEVEL
])) {
276 int log_level
= (blobmsg_get_u32(c
) & LOG_PRIMASK
);
278 if (config
.log_level
!= log_level
) {
279 config
.log_level
= log_level
;
280 setlogmask(LOG_UPTO(config
.log_level
));
285 static double parse_leasetime(struct blob_attr
*c
) {
286 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
287 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
289 if (time
&& endptr
&& endptr
[0]) {
290 if (endptr
[0] == 's')
292 else if (endptr
[0] == 'm')
294 else if (endptr
[0] == 'h')
296 else if (endptr
[0] == 'd')
298 else if (endptr
[0] == 'w')
299 time
*= 7 * 24 * 3600;
313 static int set_lease(struct uci_section
*s
)
315 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
317 blob_buf_init(&b
, 0);
318 uci_to_blob(&b
, s
, &lease_attr_list
);
319 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
322 if ((c
= tb
[LEASE_ATTR_NAME
]))
323 hostlen
= blobmsg_data_len(c
);
325 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
330 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
332 if ((c
= tb
[LEASE_ATTR_IP
]))
333 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
336 if ((c
= tb
[LEASE_ATTR_MAC
]))
337 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
340 if ((c
= tb
[LEASE_ATTR_DUID
])) {
341 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
342 lease
->duid
= malloc(duidlen
);
346 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
347 duidlen
, blobmsg_get_string(c
));
352 lease
->duid_len
= len
;
355 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
357 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
362 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
363 double time
= parse_leasetime(c
);
367 lease
->dhcpv4_leasetime
= time
;
370 list_add(&lease
->head
, &leases
);
380 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
382 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
383 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
385 if (tb
[IFACE_ATTR_INTERFACE
])
386 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
391 struct interface
*iface
= get_interface(name
);
393 iface
= calloc(1, sizeof(*iface
));
397 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
399 set_interface_defaults(iface
);
401 list_add(&iface
->head
, &interfaces
);
405 const char *ifname
= NULL
;
407 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
408 ifname
= blobmsg_get_string(c
);
409 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
410 ifname
= blobmsg_get_string(c
);
414 if (overwrite
|| !iface
->ifname
[0])
415 ifname
= ubus_get_ifname(name
);
418 if (!iface
->ifname
[0] && !ifname
)
422 strncpy(iface
->ifname
, ifname
, sizeof(iface
->ifname
) - 1);
424 if ((iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
429 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
430 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
432 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
433 iface
->ignore
= blobmsg_get_bool(c
);
435 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
436 double time
= parse_leasetime(c
);
440 iface
->dhcpv4_leasetime
= time
;
443 if ((c
= tb
[IFACE_ATTR_START
])) {
444 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
446 if (config
.main_dhcpv4
&& config
.legacy
)
447 iface
->dhcpv4
= RELAYD_SERVER
;
450 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
451 iface
->dhcpv4_end
.s_addr
= htonl(
452 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
454 if ((c
= tb
[IFACE_ATTR_MASTER
]))
455 iface
->master
= blobmsg_get_bool(c
);
457 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
458 struct blob_attr
*cur
;
461 blobmsg_for_each_attr(cur
, c
, rem
) {
462 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
465 iface
->upstream
= realloc(iface
->upstream
,
466 iface
->upstream_len
+ blobmsg_data_len(cur
));
467 if (!iface
->upstream
)
470 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
471 iface
->upstream_len
+= blobmsg_data_len(cur
);
476 if ((c
= tb
[IFACE_ATTR_RA
])) {
477 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
483 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
484 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0) {
485 if (config
.main_dhcpv4
)
486 iface
->dhcpv4
= mode
;
492 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
493 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
494 iface
->dhcpv6
= mode
;
499 if ((c
= tb
[IFACE_ATTR_NDP
])) {
500 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
506 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
507 struct blob_attr
*cur
;
510 blobmsg_for_each_attr(cur
, c
, rem
) {
511 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
514 struct in_addr addr4
;
515 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
516 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
517 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
518 if (!iface
->dhcpv4_router
)
521 iface
->dhcpv4_router
[iface
->dhcpv4_router_cnt
- 1] = addr4
;
527 if ((c
= tb
[IFACE_ATTR_DNS
])) {
528 struct blob_attr
*cur
;
531 iface
->always_rewrite_dns
= true;
532 blobmsg_for_each_attr(cur
, c
, rem
) {
533 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
536 struct in_addr addr4
;
537 struct in6_addr addr6
;
538 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
539 iface
->dhcpv4_dns
= realloc(iface
->dhcpv4_dns
,
540 (++iface
->dhcpv4_dns_cnt
) * sizeof(*iface
->dhcpv4_dns
));
541 if (!iface
->dhcpv4_dns
)
544 iface
->dhcpv4_dns
[iface
->dhcpv4_dns_cnt
- 1] = addr4
;
545 } else if (inet_pton(AF_INET6
, blobmsg_get_string(cur
), &addr6
) == 1) {
546 iface
->dns
= realloc(iface
->dns
,
547 (++iface
->dns_cnt
) * sizeof(*iface
->dns
));
551 iface
->dns
[iface
->dns_cnt
- 1] = addr6
;
557 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
558 struct blob_attr
*cur
;
561 blobmsg_for_each_attr(cur
, c
, rem
) {
562 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
566 char *domain
= blobmsg_get_string(cur
);
567 size_t domainlen
= strlen(domain
);
568 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
569 domain
[domainlen
- 1] = 0;
571 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
575 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
579 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
580 iface
->search_len
+= len
;
584 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
585 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
586 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
589 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
590 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
591 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
592 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
595 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
596 iface
->default_router
= blobmsg_get_u32(c
);
598 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
599 iface
->managed
= blobmsg_get_u32(c
);
601 if ((c
= tb
[IFACE_ATTR_RA_HOPLIMIT
])) {
602 iface
->ra_hoplimit
= blobmsg_get_u32(c
);
603 if (iface
->ra_hoplimit
> 255)
607 if ((c
= tb
[IFACE_ATTR_RA_MTU
])) {
608 iface
->ra_mtu
= blobmsg_get_u32(c
);
609 if (iface
->ra_mtu
< 1280)
613 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
614 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
616 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
617 iface
->ra_advrouter
= blobmsg_get_bool(c
);
619 if ((c
= tb
[IFACE_ATTR_RA_MININTERVAL
]))
620 iface
->ra_mininterval
= blobmsg_get_u32(c
);
622 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
623 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
625 if ((c
= tb
[IFACE_ATTR_RA_LIFETIME
]))
626 iface
->ra_lifetime
= blobmsg_get_u32(c
);
628 if ((c
= tb
[IFACE_ATTR_RA_USELEASETIME
]))
629 iface
->ra_useleasetime
= blobmsg_get_bool(c
);
631 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
632 const char *prio
= blobmsg_get_string(c
);
634 if (!strcmp(prio
, "high"))
635 iface
->route_preference
= 1;
636 else if (!strcmp(prio
, "low"))
637 iface
->route_preference
= -1;
638 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
639 iface
->route_preference
= 0;
644 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
645 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
646 sizeof(iface
->dhcpv6_pd_manager
) - 1);
648 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
649 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
652 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
653 iface
->learn_routes
= blobmsg_get_bool(c
);
655 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
656 iface
->external
= blobmsg_get_bool(c
);
661 close_interface(iface
);
665 static int set_interface(struct uci_section
*s
)
667 blob_buf_init(&b
, 0);
668 uci_to_blob(&b
, s
, &interface_attr_list
);
670 return config_parse_interface(blob_data(b
.head
), blob_len(b
.head
), s
->e
.name
, true);
673 void odhcpd_reload(void)
675 struct uci_context
*uci
= uci_alloc_context();
677 while (!list_empty(&leases
))
678 free_lease(list_first_entry(&leases
, struct lease
, head
));
680 struct interface
*master
= NULL
, *i
, *n
;
685 list_for_each_entry(i
, &interfaces
, head
)
688 struct uci_package
*dhcp
= NULL
;
689 if (!uci_load(uci
, "dhcp", &dhcp
)) {
690 struct uci_element
*e
;
691 uci_foreach_element(&dhcp
->sections
, e
) {
692 struct uci_section
*s
= uci_to_section(e
);
693 if (!strcmp(s
->type
, "host"))
695 else if (!strcmp(s
->type
, "odhcpd"))
699 uci_foreach_element(&dhcp
->sections
, e
) {
700 struct uci_section
*s
= uci_to_section(e
);
701 if (!strcmp(s
->type
, "dhcp"))
706 if (config
.dhcp_statefile
) {
707 char *path
= strdup(config
.dhcp_statefile
);
709 mkdir_p(dirname(path
), 0755);
714 ubus_apply_network();
717 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
720 list_for_each_entry(i
, &interfaces
, head
) {
724 if (i
->dhcpv6
== RELAYD_HYBRID
|| i
->dhcpv6
== RELAYD_RELAY
)
725 any_dhcpv6_slave
= true;
727 if (i
->ra
== RELAYD_HYBRID
|| i
->ra
== RELAYD_RELAY
)
730 if (i
->ndp
== RELAYD_HYBRID
|| i
->ndp
== RELAYD_RELAY
)
731 any_ndp_slave
= true;
734 /* Evaluate hybrid mode for master */
735 list_for_each_entry(i
, &interfaces
, head
) {
739 enum odhcpd_mode hybrid_mode
= RELAYD_DISABLED
;
741 if (!ubus_has_prefix(i
->name
, i
->ifname
))
742 hybrid_mode
= RELAYD_RELAY
;
745 if (i
->dhcpv6
== RELAYD_HYBRID
)
746 i
->dhcpv6
= hybrid_mode
;
748 if (i
->dhcpv6
== RELAYD_RELAY
&& !any_dhcpv6_slave
)
749 i
->dhcpv6
= RELAYD_DISABLED
;
751 if (i
->ra
== RELAYD_HYBRID
)
754 if (i
->ra
== RELAYD_RELAY
&& !any_ra_slave
)
755 i
->ra
= RELAYD_DISABLED
;
757 if (i
->ndp
== RELAYD_HYBRID
)
758 i
->ndp
= hybrid_mode
;
760 if (i
->ndp
== RELAYD_RELAY
&& !any_ndp_slave
)
761 i
->ndp
= RELAYD_DISABLED
;
763 if (i
->dhcpv6
== RELAYD_RELAY
|| i
->ra
== RELAYD_RELAY
|| i
->ndp
== RELAYD_RELAY
)
768 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
770 /* Resolve hybrid mode */
771 if (i
->dhcpv6
== RELAYD_HYBRID
)
772 i
->dhcpv6
= (master
&& master
->dhcpv6
== RELAYD_RELAY
) ?
773 RELAYD_RELAY
: RELAYD_SERVER
;
775 if (i
->ra
== RELAYD_HYBRID
)
776 i
->ra
= (master
&& master
->ra
== RELAYD_RELAY
) ?
777 RELAYD_RELAY
: RELAYD_SERVER
;
779 if (i
->ndp
== RELAYD_HYBRID
)
780 i
->ndp
= (master
&& master
->ndp
== RELAYD_RELAY
) ?
781 RELAYD_RELAY
: RELAYD_DISABLED
;
783 setup_router_interface(i
, !i
->ignore
|| i
->ra
!= RELAYD_DISABLED
);
784 setup_dhcpv6_interface(i
, !i
->ignore
|| i
->dhcpv6
!= RELAYD_DISABLED
);
785 setup_ndp_interface(i
, !i
->ignore
|| i
->ndp
!= RELAYD_DISABLED
);
786 setup_dhcpv4_interface(i
, !i
->ignore
|| i
->dhcpv4
!= RELAYD_DISABLED
);
791 ndp_handle_addr6_dump();
792 uci_unload(uci
, dhcp
);
793 uci_free_context(uci
);
796 static void handle_signal(int signal
)
800 if (signal
== SIGHUP
) {
801 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
806 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
809 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
814 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
816 void odhcpd_run(void)
818 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
820 reload_fd
.fd
= reload_pipe
[0];
821 uloop_fd_add(&reload_fd
, ULOOP_READ
);
823 signal(SIGTERM
, handle_signal
);
824 signal(SIGINT
, handle_signal
);
825 signal(SIGHUP
, handle_signal
);
835 while (!list_empty(&interfaces
))
836 close_interface(list_first_entry(&interfaces
, struct interface
, head
));