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
,
104 LEASE_ATTR_LEASETIME
,
110 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
111 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
112 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
113 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
114 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
115 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
116 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
120 const struct uci_blob_param_list lease_attr_list
= {
121 .n_params
= LEASE_ATTR_MAX
,
122 .params
= lease_attrs
,
127 ODHCPD_ATTR_MAINDHCP
,
128 ODHCPD_ATTR_LEASEFILE
,
129 ODHCPD_ATTR_LEASETRIGGER
,
134 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
135 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
136 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
137 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
141 const struct uci_blob_param_list odhcpd_attr_list
= {
142 .n_params
= ODHCPD_ATTR_MAX
,
143 .params
= odhcpd_attrs
,
146 static int mkdir_p(char *dir
, mode_t mask
)
148 char *l
= strrchr(dir
, '/');
156 if (mkdir_p(dir
, mask
))
161 ret
= mkdir(dir
, mask
);
162 if (ret
&& errno
== EEXIST
)
166 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
171 static struct interface
* get_interface(const char *name
)
174 list_for_each_entry(c
, &interfaces
, head
)
175 if (!strcmp(c
->name
, name
))
181 static void clean_interface(struct interface
*iface
)
185 free(iface
->upstream
);
186 free(iface
->dhcpv4_router
);
187 free(iface
->dhcpv4_dns
);
188 free(iface
->dhcpv6_raw
);
189 free(iface
->filter_class
);
190 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
194 static void close_interface(struct interface
*iface
)
196 if (iface
->head
.next
)
197 list_del(&iface
->head
);
199 setup_router_interface(iface
, false);
200 setup_dhcpv6_interface(iface
, false);
201 setup_ndp_interface(iface
, false);
202 setup_dhcpv4_interface(iface
, false);
204 clean_interface(iface
);
209 static int parse_mode(const char *mode
)
211 if (!strcmp(mode
, "disabled")) {
212 return RELAYD_DISABLED
;
213 } else if (!strcmp(mode
, "server")) {
214 return RELAYD_SERVER
;
215 } else if (!strcmp(mode
, "relay")) {
217 } else if (!strcmp(mode
, "hybrid")) {
218 return RELAYD_HYBRID
;
225 static void set_config(struct uci_section
*s
)
227 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
229 blob_buf_init(&b
, 0);
230 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
231 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
233 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
234 config
.legacy
= blobmsg_get_bool(c
);
236 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
237 free(config
.dhcp_statefile
);
238 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
241 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
242 free(config
.dhcp_cb
);
243 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
247 static double parse_leasetime(struct blob_attr
*c
) {
248 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
249 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
251 if (time
&& endptr
&& endptr
[0]) {
252 if (endptr
[0] == 's')
254 else if (endptr
[0] == 'm')
256 else if (endptr
[0] == 'h')
258 else if (endptr
[0] == 'd')
260 else if (endptr
[0] == 'w')
261 time
*= 7 * 24 * 3600;
275 static int set_lease(struct uci_section
*s
)
277 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
279 blob_buf_init(&b
, 0);
280 uci_to_blob(&b
, s
, &lease_attr_list
);
281 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
284 if ((c
= tb
[LEASE_ATTR_NAME
]))
285 hostlen
= blobmsg_data_len(c
);
287 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
292 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
294 if ((c
= tb
[LEASE_ATTR_IP
]))
295 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
298 if ((c
= tb
[LEASE_ATTR_MAC
]))
299 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
302 if ((c
= tb
[LEASE_ATTR_DUID
])) {
303 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
304 lease
->duid
= malloc(duidlen
);
308 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
309 duidlen
, blobmsg_get_string(c
));
314 lease
->duid_len
= len
;
317 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
319 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
324 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
325 double time
= parse_leasetime(c
);
330 lease
->dhcpv4_leasetime
= time
;
333 list_add(&lease
->head
, &leases
);
345 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
347 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
348 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
350 if (tb
[IFACE_ATTR_INTERFACE
])
351 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
356 struct interface
*iface
= get_interface(name
);
358 iface
= calloc(1, sizeof(*iface
));
362 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
364 /* Default settings */
366 iface
->learn_routes
= true;
368 list_add(&iface
->head
, &interfaces
);
372 const char *ifname
= NULL
;
374 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
375 ifname
= blobmsg_get_string(c
);
376 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
377 ifname
= blobmsg_get_string(c
);
381 if (overwrite
|| !iface
->ifname
[0])
382 ifname
= ubus_get_ifname(name
);
385 if (!iface
->ifname
[0] && !ifname
)
389 strncpy(iface
->ifname
, ifname
, sizeof(iface
->ifname
) - 1);
391 if ((iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
396 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
397 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
399 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
400 iface
->ignore
= blobmsg_get_bool(c
);
402 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
403 double time
= parse_leasetime(c
);
408 iface
->dhcpv4_leasetime
= time
;
411 if ((c
= tb
[IFACE_ATTR_START
])) {
412 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
415 iface
->dhcpv4
= RELAYD_SERVER
;
418 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
419 iface
->dhcpv4_end
.s_addr
= htonl(
420 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
422 if ((c
= tb
[IFACE_ATTR_MASTER
]))
423 iface
->master
= blobmsg_get_bool(c
);
425 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
426 struct blob_attr
*cur
;
429 blobmsg_for_each_attr(cur
, c
, rem
) {
430 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
433 iface
->upstream
= realloc(iface
->upstream
,
434 iface
->upstream_len
+ blobmsg_data_len(cur
));
435 if (!iface
->upstream
)
438 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
439 iface
->upstream_len
+= blobmsg_data_len(cur
);
444 if ((c
= tb
[IFACE_ATTR_RA
])) {
445 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
451 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
452 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
453 iface
->dhcpv4
= mode
;
458 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
459 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
460 iface
->dhcpv6
= mode
;
465 if ((c
= tb
[IFACE_ATTR_NDP
])) {
466 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
472 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
473 struct blob_attr
*cur
;
476 blobmsg_for_each_attr(cur
, c
, rem
) {
477 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
480 struct in_addr addr4
;
481 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
482 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
483 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
484 if (!iface
->dhcpv4_router
)
487 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
;
525 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
526 struct blob_attr
*cur
;
529 blobmsg_for_each_attr(cur
, c
, rem
) {
530 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
534 char *domain
= blobmsg_get_string(cur
);
535 size_t domainlen
= strlen(domain
);
536 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
537 domain
[domainlen
- 1] = 0;
539 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
543 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
547 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
548 iface
->search_len
+= len
;
552 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
553 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
554 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
557 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
558 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
559 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
560 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
563 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
564 iface
->default_router
= blobmsg_get_u32(c
);
566 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
567 iface
->managed
= blobmsg_get_u32(c
);
569 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
570 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
572 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
573 iface
->ra_advrouter
= blobmsg_get_bool(c
);
575 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
576 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
578 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
579 const char *prio
= blobmsg_get_string(c
);
581 if (!strcmp(prio
, "high"))
582 iface
->route_preference
= 1;
583 else if (!strcmp(prio
, "low"))
584 iface
->route_preference
= -1;
585 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
586 iface
->route_preference
= 0;
591 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
592 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
593 sizeof(iface
->dhcpv6_pd_manager
) - 1);
595 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
596 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
599 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
600 iface
->learn_routes
= blobmsg_get_bool(c
);
602 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
603 iface
->external
= blobmsg_get_bool(c
);
608 close_interface(iface
);
612 static int set_interface(struct uci_section
*s
)
614 blob_buf_init(&b
, 0);
615 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);
620 void odhcpd_reload(void)
622 struct uci_context
*uci
= uci_alloc_context();
623 while (!list_empty(&leases
)) {
624 struct lease
*l
= list_first_entry(&leases
, struct lease
, head
);
630 struct interface
*master
= NULL
, *i
, *n
;
635 list_for_each_entry(i
, &interfaces
, head
)
638 struct uci_package
*dhcp
= NULL
;
639 if (!uci_load(uci
, "dhcp", &dhcp
)) {
640 struct uci_element
*e
;
641 uci_foreach_element(&dhcp
->sections
, e
) {
642 struct uci_section
*s
= uci_to_section(e
);
643 if (!strcmp(s
->type
, "host"))
645 else if (!strcmp(s
->type
, "odhcpd"))
649 uci_foreach_element(&dhcp
->sections
, e
) {
650 struct uci_section
*s
= uci_to_section(e
);
651 if (!strcmp(s
->type
, "dhcp"))
656 if (config
.dhcp_statefile
) {
657 char *path
= strdup(config
.dhcp_statefile
);
659 mkdir_p(dirname(path
), 0755);
664 ubus_apply_network();
667 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
670 list_for_each_entry(i
, &interfaces
, head
) {
674 if (i
->dhcpv6
== RELAYD_HYBRID
|| i
->dhcpv6
== RELAYD_RELAY
)
675 any_dhcpv6_slave
= true;
677 if (i
->ra
== RELAYD_HYBRID
|| i
->ra
== RELAYD_RELAY
)
680 if (i
->ndp
== RELAYD_HYBRID
|| i
->ndp
== RELAYD_RELAY
)
681 any_ndp_slave
= true;
684 // Evaluate hybrid mode for master
685 list_for_each_entry(i
, &interfaces
, head
) {
689 enum odhcpd_mode hybrid_mode
= RELAYD_DISABLED
;
691 if (!ubus_has_prefix(i
->name
, i
->ifname
))
692 hybrid_mode
= RELAYD_RELAY
;
695 if (i
->dhcpv6
== RELAYD_HYBRID
)
696 i
->dhcpv6
= hybrid_mode
;
698 if (i
->dhcpv6
== RELAYD_RELAY
&& !any_dhcpv6_slave
)
699 i
->dhcpv6
= RELAYD_DISABLED
;
701 if (i
->ra
== RELAYD_HYBRID
)
704 if (i
->ra
== RELAYD_RELAY
&& !any_ra_slave
)
705 i
->ra
= RELAYD_DISABLED
;
707 if (i
->ndp
== RELAYD_HYBRID
)
708 i
->ndp
= hybrid_mode
;
710 if (i
->ndp
== RELAYD_RELAY
&& !any_ndp_slave
)
711 i
->ndp
= RELAYD_DISABLED
;
713 if (i
->dhcpv6
== RELAYD_RELAY
|| i
->ra
== RELAYD_RELAY
|| i
->ndp
== RELAYD_RELAY
)
718 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
720 // Resolve hybrid mode
721 if (i
->dhcpv6
== RELAYD_HYBRID
)
722 i
->dhcpv6
= (master
&& master
->dhcpv6
== RELAYD_RELAY
) ?
723 RELAYD_RELAY
: RELAYD_SERVER
;
725 if (i
->ra
== RELAYD_HYBRID
)
726 i
->ra
= (master
&& master
->ra
== RELAYD_RELAY
) ?
727 RELAYD_RELAY
: RELAYD_SERVER
;
729 if (i
->ndp
== RELAYD_HYBRID
)
730 i
->ndp
= (master
&& master
->ndp
== RELAYD_RELAY
) ?
731 RELAYD_RELAY
: RELAYD_DISABLED
;
733 setup_router_interface(i
, true);
734 setup_dhcpv6_interface(i
, true);
735 setup_ndp_interface(i
, true);
736 setup_dhcpv4_interface(i
, true);
742 uci_unload(uci
, dhcp
);
743 uci_free_context(uci
);
747 static void handle_signal(int signal
)
751 if (signal
== SIGHUP
) {
752 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
759 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
762 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
766 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
768 void odhcpd_run(void)
770 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
771 reload_fd
.fd
= reload_pipe
[0];
772 uloop_fd_add(&reload_fd
, ULOOP_READ
);
774 signal(SIGTERM
, handle_signal
);
775 signal(SIGINT
, handle_signal
);
776 signal(SIGHUP
, handle_signal
);
786 while (!list_empty(&interfaces
))
787 close_interface(list_first_entry(&interfaces
, struct interface
, head
));