15 static struct blob_buf b
;
16 static int reload_pipe
[2];
17 struct list_head leases
= LIST_HEAD_INIT(leases
);
18 struct list_head interfaces
= LIST_HEAD_INIT(interfaces
);
19 struct config config
= {false, NULL
, NULL
};
25 IFACE_ATTR_DYNAMICDHCP
,
39 IFACE_ATTR_FILTER_CLASS
,
40 IFACE_ATTR_DHCPV6_RAW
,
41 IFACE_ATTR_RA_DEFAULT
,
42 IFACE_ATTR_RA_MANAGEMENT
,
43 IFACE_ATTR_RA_OFFLINK
,
44 IFACE_ATTR_RA_PREFERENCE
,
45 IFACE_ATTR_RA_ADVROUTER
,
46 IFACE_ATTR_RA_MAXINTERVAL
,
47 IFACE_ATTR_PD_MANAGER
,
49 IFACE_ATTR_NDPROXY_ROUTING
,
50 IFACE_ATTR_NDPROXY_SLAVE
,
54 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
55 [IFACE_ATTR_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
56 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
57 [IFACE_ATTR_NETWORKID
] = { .name
= "networkid", .type
= BLOBMSG_TYPE_STRING
},
58 [IFACE_ATTR_DYNAMICDHCP
] = { .name
= "dynamicdhcp", .type
= BLOBMSG_TYPE_BOOL
},
59 [IFACE_ATTR_IGNORE
] = { .name
= "ignore", .type
= BLOBMSG_TYPE_BOOL
},
60 [IFACE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
61 [IFACE_ATTR_START
] = { .name
= "start", .type
= BLOBMSG_TYPE_INT32
},
62 [IFACE_ATTR_LIMIT
] = { .name
= "limit", .type
= BLOBMSG_TYPE_INT32
},
63 [IFACE_ATTR_MASTER
] = { .name
= "master", .type
= BLOBMSG_TYPE_BOOL
},
64 [IFACE_ATTR_UPSTREAM
] = { .name
= "upstream", .type
= BLOBMSG_TYPE_ARRAY
},
65 [IFACE_ATTR_RA
] = { .name
= "ra", .type
= BLOBMSG_TYPE_STRING
},
66 [IFACE_ATTR_DHCPV4
] = { .name
= "dhcpv4", .type
= BLOBMSG_TYPE_STRING
},
67 [IFACE_ATTR_DHCPV6
] = { .name
= "dhcpv6", .type
= BLOBMSG_TYPE_STRING
},
68 [IFACE_ATTR_NDP
] = { .name
= "ndp", .type
= BLOBMSG_TYPE_STRING
},
69 [IFACE_ATTR_ROUTER
] = { .name
= "router", .type
= BLOBMSG_TYPE_ARRAY
},
70 [IFACE_ATTR_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
71 [IFACE_ATTR_DOMAIN
] = { .name
= "domain", .type
= BLOBMSG_TYPE_ARRAY
},
72 [IFACE_ATTR_FILTER_CLASS
] = { .name
= "filter_class", .type
= BLOBMSG_TYPE_STRING
},
73 [IFACE_ATTR_DHCPV6_RAW
] = { .name
= "dhcpv6_raw", .type
= BLOBMSG_TYPE_STRING
},
74 [IFACE_ATTR_PD_MANAGER
] = { .name
= "pd_manager", .type
= BLOBMSG_TYPE_STRING
},
75 [IFACE_ATTR_PD_CER
] = { .name
= "pd_cer", .type
= BLOBMSG_TYPE_STRING
},
76 [IFACE_ATTR_RA_DEFAULT
] = { .name
= "ra_default", .type
= BLOBMSG_TYPE_INT32
},
77 [IFACE_ATTR_RA_MANAGEMENT
] = { .name
= "ra_management", .type
= BLOBMSG_TYPE_INT32
},
78 [IFACE_ATTR_RA_OFFLINK
] = { .name
= "ra_offlink", .type
= BLOBMSG_TYPE_BOOL
},
79 [IFACE_ATTR_RA_PREFERENCE
] = { .name
= "ra_preference", .type
= BLOBMSG_TYPE_STRING
},
80 [IFACE_ATTR_RA_ADVROUTER
] = { .name
= "ra_advrouter", .type
= BLOBMSG_TYPE_BOOL
},
81 [IFACE_ATTR_RA_MAXINTERVAL
] = { .name
= "ra_maxinterval", .type
= BLOBMSG_TYPE_INT32
},
82 [IFACE_ATTR_NDPROXY_ROUTING
] = { .name
= "ndproxy_routing", .type
= BLOBMSG_TYPE_BOOL
},
83 [IFACE_ATTR_NDPROXY_SLAVE
] = { .name
= "ndproxy_slave", .type
= BLOBMSG_TYPE_BOOL
},
86 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
87 [IFACE_ATTR_UPSTREAM
] = { .type
= BLOBMSG_TYPE_STRING
},
88 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
89 [IFACE_ATTR_DOMAIN
] = { .type
= BLOBMSG_TYPE_STRING
},
92 const struct uci_blob_param_list interface_attr_list
= {
93 .n_params
= IFACE_ATTR_MAX
,
94 .params
= iface_attrs
,
95 .info
= iface_attr_info
,
103 LEASE_ATTR_LEASETIME
,
108 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
109 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
110 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
111 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
112 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
113 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
114 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
117 const struct uci_blob_param_list lease_attr_list
= {
118 .n_params
= LEASE_ATTR_MAX
,
119 .params
= lease_attrs
,
123 ODHCPD_ATTR_MAINDHCP
,
124 ODHCPD_ATTR_LEASEFILE
,
125 ODHCPD_ATTR_LEASETRIGGER
,
129 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
130 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
131 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
132 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
135 const struct uci_blob_param_list odhcpd_attr_list
= {
136 .n_params
= ODHCPD_ATTR_MAX
,
137 .params
= odhcpd_attrs
,
140 static int mkdir_p(char *dir
, mode_t mask
)
142 char *l
= strrchr(dir
, '/');
150 if (mkdir_p(dir
, mask
))
155 ret
= mkdir(dir
, mask
);
156 if (ret
&& errno
== EEXIST
)
160 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
165 static void free_lease(struct lease
*l
)
174 static struct interface
* get_interface(const char *name
)
177 list_for_each_entry(c
, &interfaces
, head
)
178 if (!strcmp(c
->name
, name
))
183 static void set_interface_defaults(struct interface
*iface
)
186 iface
->learn_routes
= 1;
189 static void clean_interface(struct interface
*iface
)
193 free(iface
->upstream
);
194 free(iface
->dhcpv4_router
);
195 free(iface
->dhcpv4_dns
);
196 free(iface
->dhcpv6_raw
);
197 free(iface
->filter_class
);
198 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
199 set_interface_defaults(iface
);
202 static void close_interface(struct interface
*iface
)
204 if (iface
->head
.next
)
205 list_del(&iface
->head
);
207 setup_router_interface(iface
, false);
208 setup_dhcpv6_interface(iface
, false);
209 setup_ndp_interface(iface
, false);
210 setup_dhcpv4_interface(iface
, false);
212 clean_interface(iface
);
216 static int parse_mode(const char *mode
)
218 if (!strcmp(mode
, "disabled"))
219 return RELAYD_DISABLED
;
220 else if (!strcmp(mode
, "server"))
221 return RELAYD_SERVER
;
222 else if (!strcmp(mode
, "relay"))
224 else if (!strcmp(mode
, "hybrid"))
225 return RELAYD_HYBRID
;
230 static void set_config(struct uci_section
*s
)
232 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
234 blob_buf_init(&b
, 0);
235 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
236 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
238 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
239 config
.legacy
= blobmsg_get_bool(c
);
241 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
242 free(config
.dhcp_statefile
);
243 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
246 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
247 free(config
.dhcp_cb
);
248 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
252 static double parse_leasetime(struct blob_attr
*c
) {
253 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
254 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
256 if (time
&& endptr
&& endptr
[0]) {
257 if (endptr
[0] == 's')
259 else if (endptr
[0] == 'm')
261 else if (endptr
[0] == 'h')
263 else if (endptr
[0] == 'd')
265 else if (endptr
[0] == 'w')
266 time
*= 7 * 24 * 3600;
280 static int set_lease(struct uci_section
*s
)
282 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
284 blob_buf_init(&b
, 0);
285 uci_to_blob(&b
, s
, &lease_attr_list
);
286 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
289 if ((c
= tb
[LEASE_ATTR_NAME
]))
290 hostlen
= blobmsg_data_len(c
);
292 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
297 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
299 if ((c
= tb
[LEASE_ATTR_IP
]))
300 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
303 if ((c
= tb
[LEASE_ATTR_MAC
]))
304 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
307 if ((c
= tb
[LEASE_ATTR_DUID
])) {
308 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
309 lease
->duid
= malloc(duidlen
);
313 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
314 duidlen
, blobmsg_get_string(c
));
319 lease
->duid_len
= len
;
322 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
324 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
329 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
330 double time
= parse_leasetime(c
);
335 lease
->dhcpv4_leasetime
= time
;
338 list_add(&lease
->head
, &leases
);
348 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
350 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
351 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
353 if (tb
[IFACE_ATTR_INTERFACE
])
354 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
359 struct interface
*iface
= get_interface(name
);
361 iface
= calloc(1, sizeof(*iface
));
365 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
367 set_interface_defaults(iface
);
369 list_add(&iface
->head
, &interfaces
);
373 const char *ifname
= NULL
;
375 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
376 ifname
= blobmsg_get_string(c
);
377 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
378 ifname
= blobmsg_get_string(c
);
382 if (overwrite
|| !iface
->ifname
[0])
383 ifname
= ubus_get_ifname(name
);
386 if (!iface
->ifname
[0] && !ifname
)
390 strncpy(iface
->ifname
, ifname
, sizeof(iface
->ifname
) - 1);
392 if ((iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
397 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
398 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
400 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
401 iface
->ignore
= blobmsg_get_bool(c
);
403 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
404 double time
= parse_leasetime(c
);
409 iface
->dhcpv4_leasetime
= time
;
412 if ((c
= tb
[IFACE_ATTR_START
])) {
413 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
416 iface
->dhcpv4
= RELAYD_SERVER
;
419 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
420 iface
->dhcpv4_end
.s_addr
= htonl(
421 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
423 if ((c
= tb
[IFACE_ATTR_MASTER
]))
424 iface
->master
= blobmsg_get_bool(c
);
426 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
427 struct blob_attr
*cur
;
430 blobmsg_for_each_attr(cur
, c
, rem
) {
431 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
434 iface
->upstream
= realloc(iface
->upstream
,
435 iface
->upstream_len
+ blobmsg_data_len(cur
));
436 if (!iface
->upstream
)
439 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
440 iface
->upstream_len
+= blobmsg_data_len(cur
);
445 if ((c
= tb
[IFACE_ATTR_RA
])) {
446 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
452 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
453 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
454 iface
->dhcpv4
= mode
;
459 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
460 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
461 iface
->dhcpv6
= mode
;
466 if ((c
= tb
[IFACE_ATTR_NDP
])) {
467 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
473 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
474 struct blob_attr
*cur
;
477 blobmsg_for_each_attr(cur
, c
, rem
) {
478 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
481 struct in_addr addr4
;
482 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
483 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
484 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
485 if (!iface
->dhcpv4_router
)
488 iface
->dhcpv4_router
[iface
->dhcpv4_router_cnt
- 1] = addr4
;
494 if ((c
= tb
[IFACE_ATTR_DNS
])) {
495 struct blob_attr
*cur
;
498 iface
->always_rewrite_dns
= true;
499 blobmsg_for_each_attr(cur
, c
, rem
) {
500 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
503 struct in_addr addr4
;
504 struct in6_addr addr6
;
505 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
506 iface
->dhcpv4_dns
= realloc(iface
->dhcpv4_dns
,
507 (++iface
->dhcpv4_dns_cnt
) * sizeof(*iface
->dhcpv4_dns
));
508 if (!iface
->dhcpv4_dns
)
511 iface
->dhcpv4_dns
[iface
->dhcpv4_dns_cnt
- 1] = addr4
;
512 } else if (inet_pton(AF_INET6
, blobmsg_get_string(cur
), &addr6
) == 1) {
513 iface
->dns
= realloc(iface
->dns
,
514 (++iface
->dns_cnt
) * sizeof(*iface
->dns
));
518 iface
->dns
[iface
->dns_cnt
- 1] = addr6
;
524 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
525 struct blob_attr
*cur
;
528 blobmsg_for_each_attr(cur
, c
, rem
) {
529 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
533 char *domain
= blobmsg_get_string(cur
);
534 size_t domainlen
= strlen(domain
);
535 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
536 domain
[domainlen
- 1] = 0;
538 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
542 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
546 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
547 iface
->search_len
+= len
;
551 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
552 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
553 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
556 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
557 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
558 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
559 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
562 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
563 iface
->default_router
= blobmsg_get_u32(c
);
565 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
566 iface
->managed
= blobmsg_get_u32(c
);
568 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
569 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
571 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
572 iface
->ra_advrouter
= blobmsg_get_bool(c
);
574 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
575 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
577 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
578 const char *prio
= blobmsg_get_string(c
);
580 if (!strcmp(prio
, "high"))
581 iface
->route_preference
= 1;
582 else if (!strcmp(prio
, "low"))
583 iface
->route_preference
= -1;
584 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
585 iface
->route_preference
= 0;
590 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
591 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
592 sizeof(iface
->dhcpv6_pd_manager
) - 1);
594 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
595 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
598 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
599 iface
->learn_routes
= blobmsg_get_bool(c
);
601 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
602 iface
->external
= blobmsg_get_bool(c
);
607 close_interface(iface
);
611 static int set_interface(struct uci_section
*s
)
613 blob_buf_init(&b
, 0);
614 uci_to_blob(&b
, s
, &interface_attr_list
);
616 return config_parse_interface(blob_data(b
.head
), blob_len(b
.head
), s
->e
.name
, true);
619 void odhcpd_reload(void)
621 struct uci_context
*uci
= uci_alloc_context();
623 while (!list_empty(&leases
))
624 free_lease(list_first_entry(&leases
, struct lease
, head
));
626 struct interface
*master
= NULL
, *i
, *n
;
631 list_for_each_entry(i
, &interfaces
, head
)
634 struct uci_package
*dhcp
= NULL
;
635 if (!uci_load(uci
, "dhcp", &dhcp
)) {
636 struct uci_element
*e
;
637 uci_foreach_element(&dhcp
->sections
, e
) {
638 struct uci_section
*s
= uci_to_section(e
);
639 if (!strcmp(s
->type
, "host"))
641 else if (!strcmp(s
->type
, "odhcpd"))
645 uci_foreach_element(&dhcp
->sections
, e
) {
646 struct uci_section
*s
= uci_to_section(e
);
647 if (!strcmp(s
->type
, "dhcp"))
652 if (config
.dhcp_statefile
) {
653 char *path
= strdup(config
.dhcp_statefile
);
655 mkdir_p(dirname(path
), 0755);
660 ubus_apply_network();
663 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
666 list_for_each_entry(i
, &interfaces
, head
) {
670 if (i
->dhcpv6
== RELAYD_HYBRID
|| i
->dhcpv6
== RELAYD_RELAY
)
671 any_dhcpv6_slave
= true;
673 if (i
->ra
== RELAYD_HYBRID
|| i
->ra
== RELAYD_RELAY
)
676 if (i
->ndp
== RELAYD_HYBRID
|| i
->ndp
== RELAYD_RELAY
)
677 any_ndp_slave
= true;
680 /* Evaluate hybrid mode for master */
681 list_for_each_entry(i
, &interfaces
, head
) {
685 enum odhcpd_mode hybrid_mode
= RELAYD_DISABLED
;
687 if (!ubus_has_prefix(i
->name
, i
->ifname
))
688 hybrid_mode
= RELAYD_RELAY
;
691 if (i
->dhcpv6
== RELAYD_HYBRID
)
692 i
->dhcpv6
= hybrid_mode
;
694 if (i
->dhcpv6
== RELAYD_RELAY
&& !any_dhcpv6_slave
)
695 i
->dhcpv6
= RELAYD_DISABLED
;
697 if (i
->ra
== RELAYD_HYBRID
)
700 if (i
->ra
== RELAYD_RELAY
&& !any_ra_slave
)
701 i
->ra
= RELAYD_DISABLED
;
703 if (i
->ndp
== RELAYD_HYBRID
)
704 i
->ndp
= hybrid_mode
;
706 if (i
->ndp
== RELAYD_RELAY
&& !any_ndp_slave
)
707 i
->ndp
= RELAYD_DISABLED
;
709 if (i
->dhcpv6
== RELAYD_RELAY
|| i
->ra
== RELAYD_RELAY
|| i
->ndp
== RELAYD_RELAY
)
714 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
716 /* Resolve hybrid mode */
717 if (i
->dhcpv6
== RELAYD_HYBRID
)
718 i
->dhcpv6
= (master
&& master
->dhcpv6
== RELAYD_RELAY
) ?
719 RELAYD_RELAY
: RELAYD_SERVER
;
721 if (i
->ra
== RELAYD_HYBRID
)
722 i
->ra
= (master
&& master
->ra
== RELAYD_RELAY
) ?
723 RELAYD_RELAY
: RELAYD_SERVER
;
725 if (i
->ndp
== RELAYD_HYBRID
)
726 i
->ndp
= (master
&& master
->ndp
== RELAYD_RELAY
) ?
727 RELAYD_RELAY
: RELAYD_DISABLED
;
729 setup_router_interface(i
, !i
->ignore
|| i
->ra
!= RELAYD_DISABLED
);
730 setup_dhcpv6_interface(i
, !i
->ignore
|| i
->dhcpv6
!= RELAYD_DISABLED
);
731 setup_ndp_interface(i
, !i
->ignore
|| i
->ndp
!= RELAYD_DISABLED
);
732 setup_dhcpv4_interface(i
, !i
->ignore
|| i
->dhcpv4
!= RELAYD_DISABLED
);
738 uci_unload(uci
, dhcp
);
739 uci_free_context(uci
);
742 static void handle_signal(int signal
)
746 if (signal
== SIGHUP
) {
747 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
752 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
755 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
760 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
762 void odhcpd_run(void)
764 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
766 reload_fd
.fd
= reload_pipe
[0];
767 uloop_fd_add(&reload_fd
, ULOOP_READ
);
769 signal(SIGTERM
, handle_signal
);
770 signal(SIGINT
, handle_signal
);
771 signal(SIGHUP
, handle_signal
);
781 while (!list_empty(&interfaces
))
782 close_interface(list_first_entry(&interfaces
, struct interface
, head
));