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_DHCPV6_ASSIGNALL
,
45 IFACE_ATTR_RA_DEFAULT
,
46 IFACE_ATTR_RA_MANAGEMENT
,
47 IFACE_ATTR_RA_OFFLINK
,
48 IFACE_ATTR_RA_PREFERENCE
,
49 IFACE_ATTR_RA_ADVROUTER
,
50 IFACE_ATTR_RA_MININTERVAL
,
51 IFACE_ATTR_RA_MAXINTERVAL
,
52 IFACE_ATTR_RA_LIFETIME
,
53 IFACE_ATTR_RA_USELEASETIME
,
54 IFACE_ATTR_PD_MANAGER
,
56 IFACE_ATTR_NDPROXY_ROUTING
,
57 IFACE_ATTR_NDPROXY_SLAVE
,
61 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
62 [IFACE_ATTR_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
63 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
64 [IFACE_ATTR_NETWORKID
] = { .name
= "networkid", .type
= BLOBMSG_TYPE_STRING
},
65 [IFACE_ATTR_DYNAMICDHCP
] = { .name
= "dynamicdhcp", .type
= BLOBMSG_TYPE_BOOL
},
66 [IFACE_ATTR_IGNORE
] = { .name
= "ignore", .type
= BLOBMSG_TYPE_BOOL
},
67 [IFACE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
68 [IFACE_ATTR_START
] = { .name
= "start", .type
= BLOBMSG_TYPE_INT32
},
69 [IFACE_ATTR_LIMIT
] = { .name
= "limit", .type
= BLOBMSG_TYPE_INT32
},
70 [IFACE_ATTR_MASTER
] = { .name
= "master", .type
= BLOBMSG_TYPE_BOOL
},
71 [IFACE_ATTR_UPSTREAM
] = { .name
= "upstream", .type
= BLOBMSG_TYPE_ARRAY
},
72 [IFACE_ATTR_RA
] = { .name
= "ra", .type
= BLOBMSG_TYPE_STRING
},
73 [IFACE_ATTR_DHCPV4
] = { .name
= "dhcpv4", .type
= BLOBMSG_TYPE_STRING
},
74 [IFACE_ATTR_DHCPV6
] = { .name
= "dhcpv6", .type
= BLOBMSG_TYPE_STRING
},
75 [IFACE_ATTR_NDP
] = { .name
= "ndp", .type
= BLOBMSG_TYPE_STRING
},
76 [IFACE_ATTR_ROUTER
] = { .name
= "router", .type
= BLOBMSG_TYPE_ARRAY
},
77 [IFACE_ATTR_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
78 [IFACE_ATTR_DOMAIN
] = { .name
= "domain", .type
= BLOBMSG_TYPE_ARRAY
},
79 [IFACE_ATTR_FILTER_CLASS
] = { .name
= "filter_class", .type
= BLOBMSG_TYPE_STRING
},
80 [IFACE_ATTR_DHCPV6_RAW
] = { .name
= "dhcpv6_raw", .type
= BLOBMSG_TYPE_STRING
},
81 [IFACE_ATTR_DHCPV6_ASSIGNALL
] = { .name
="dhcpv6_assignall", .type
= BLOBMSG_TYPE_BOOL
},
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_NDPROXY_ROUTING
] = { .name
= "ndproxy_routing", .type
= BLOBMSG_TYPE_BOOL
},
94 [IFACE_ATTR_NDPROXY_SLAVE
] = { .name
= "ndproxy_slave", .type
= BLOBMSG_TYPE_BOOL
},
97 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
98 [IFACE_ATTR_UPSTREAM
] = { .type
= BLOBMSG_TYPE_STRING
},
99 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
100 [IFACE_ATTR_DOMAIN
] = { .type
= BLOBMSG_TYPE_STRING
},
103 const struct uci_blob_param_list interface_attr_list
= {
104 .n_params
= IFACE_ATTR_MAX
,
105 .params
= iface_attrs
,
106 .info
= iface_attr_info
,
114 LEASE_ATTR_LEASETIME
,
119 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
120 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
121 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
122 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
123 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
124 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
125 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
128 const struct uci_blob_param_list lease_attr_list
= {
129 .n_params
= LEASE_ATTR_MAX
,
130 .params
= lease_attrs
,
135 ODHCPD_ATTR_MAINDHCP
,
136 ODHCPD_ATTR_LEASEFILE
,
137 ODHCPD_ATTR_LEASETRIGGER
,
138 ODHCPD_ATTR_LOGLEVEL
,
142 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
143 [ODHCPD_ATTR_LEGACY
] = { .name
= "legacy", .type
= BLOBMSG_TYPE_BOOL
},
144 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
145 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
146 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
147 [ODHCPD_ATTR_LOGLEVEL
] = { .name
= "loglevel", .type
= BLOBMSG_TYPE_INT32
},
150 const struct uci_blob_param_list odhcpd_attr_list
= {
151 .n_params
= ODHCPD_ATTR_MAX
,
152 .params
= odhcpd_attrs
,
155 static int mkdir_p(char *dir
, mode_t mask
)
157 char *l
= strrchr(dir
, '/');
165 if (mkdir_p(dir
, mask
))
170 ret
= mkdir(dir
, mask
);
171 if (ret
&& errno
== EEXIST
)
175 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
180 static void free_lease(struct lease
*l
)
189 static struct interface
* get_interface(const char *name
)
192 list_for_each_entry(c
, &interfaces
, head
)
193 if (!strcmp(c
->name
, name
))
198 static void set_interface_defaults(struct interface
*iface
)
201 iface
->learn_routes
= 1;
202 iface
->dhcpv4_leasetime
= 43200;
203 iface
->dhcpv6_assignall
= true;
204 iface
->ra_maxinterval
= 600;
205 iface
->ra_mininterval
= iface
->ra_maxinterval
/3;
206 iface
->ra_lifetime
= -1;
209 static void clean_interface(struct interface
*iface
)
213 free(iface
->upstream
);
214 free(iface
->dhcpv4_router
);
215 free(iface
->dhcpv4_dns
);
216 free(iface
->dhcpv6_raw
);
217 free(iface
->filter_class
);
218 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
219 set_interface_defaults(iface
);
222 static void close_interface(struct interface
*iface
)
224 if (iface
->head
.next
)
225 list_del(&iface
->head
);
227 setup_router_interface(iface
, false);
228 setup_dhcpv6_interface(iface
, false);
229 setup_ndp_interface(iface
, false);
230 setup_dhcpv4_interface(iface
, false);
232 clean_interface(iface
);
236 static int parse_mode(const char *mode
)
238 if (!strcmp(mode
, "disabled"))
239 return RELAYD_DISABLED
;
240 else if (!strcmp(mode
, "server"))
241 return RELAYD_SERVER
;
242 else if (!strcmp(mode
, "relay"))
244 else if (!strcmp(mode
, "hybrid"))
245 return RELAYD_HYBRID
;
250 static void set_config(struct uci_section
*s
)
252 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
254 blob_buf_init(&b
, 0);
255 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
256 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
258 if ((c
= tb
[ODHCPD_ATTR_LEGACY
]))
259 config
.legacy
= blobmsg_get_bool(c
);
261 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
262 config
.main_dhcpv4
= blobmsg_get_bool(c
);
264 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
265 free(config
.dhcp_statefile
);
266 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
269 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
270 free(config
.dhcp_cb
);
271 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
274 if ((c
= tb
[ODHCPD_ATTR_LOGLEVEL
])) {
275 int log_level
= (blobmsg_get_u32(c
) & LOG_PRIMASK
);
277 if (config
.log_level
!= log_level
) {
278 config
.log_level
= log_level
;
279 setlogmask(LOG_UPTO(config
.log_level
));
284 static double parse_leasetime(struct blob_attr
*c
) {
285 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
286 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
288 if (time
&& endptr
&& endptr
[0]) {
289 if (endptr
[0] == 's')
291 else if (endptr
[0] == 'm')
293 else if (endptr
[0] == 'h')
295 else if (endptr
[0] == 'd')
297 else if (endptr
[0] == 'w')
298 time
*= 7 * 24 * 3600;
312 static int set_lease(struct uci_section
*s
)
314 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
316 blob_buf_init(&b
, 0);
317 uci_to_blob(&b
, s
, &lease_attr_list
);
318 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
321 if ((c
= tb
[LEASE_ATTR_NAME
]))
322 hostlen
= blobmsg_data_len(c
);
324 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
329 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
331 if ((c
= tb
[LEASE_ATTR_IP
]))
332 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
335 if ((c
= tb
[LEASE_ATTR_MAC
]))
336 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
339 if ((c
= tb
[LEASE_ATTR_DUID
])) {
340 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
341 lease
->duid
= malloc(duidlen
);
345 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
346 duidlen
, blobmsg_get_string(c
));
351 lease
->duid_len
= len
;
354 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
356 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
361 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
362 double time
= parse_leasetime(c
);
366 lease
->dhcpv4_leasetime
= time
;
369 list_add(&lease
->head
, &leases
);
379 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
381 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
382 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
384 if (tb
[IFACE_ATTR_INTERFACE
])
385 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
390 struct interface
*iface
= get_interface(name
);
392 iface
= calloc(1, sizeof(*iface
));
396 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
398 set_interface_defaults(iface
);
400 list_add(&iface
->head
, &interfaces
);
404 const char *ifname
= NULL
;
406 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
407 ifname
= blobmsg_get_string(c
);
408 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
409 ifname
= blobmsg_get_string(c
);
413 if (overwrite
|| !iface
->ifname
[0])
414 ifname
= ubus_get_ifname(name
);
417 if (!iface
->ifname
[0] && !ifname
)
421 strncpy(iface
->ifname
, ifname
, sizeof(iface
->ifname
) - 1);
423 if ((iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
428 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
429 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
431 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
432 iface
->ignore
= blobmsg_get_bool(c
);
434 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
435 double time
= parse_leasetime(c
);
439 iface
->dhcpv4_leasetime
= time
;
442 if ((c
= tb
[IFACE_ATTR_START
])) {
443 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
445 if (config
.main_dhcpv4
&& config
.legacy
)
446 iface
->dhcpv4
= RELAYD_SERVER
;
449 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
450 iface
->dhcpv4_end
.s_addr
= htonl(
451 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
453 if ((c
= tb
[IFACE_ATTR_MASTER
]))
454 iface
->master
= blobmsg_get_bool(c
);
456 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
457 struct blob_attr
*cur
;
460 blobmsg_for_each_attr(cur
, c
, rem
) {
461 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
464 iface
->upstream
= realloc(iface
->upstream
,
465 iface
->upstream_len
+ blobmsg_data_len(cur
));
466 if (!iface
->upstream
)
469 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
470 iface
->upstream_len
+= blobmsg_data_len(cur
);
475 if ((c
= tb
[IFACE_ATTR_RA
])) {
476 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
482 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
483 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0) {
484 if (config
.main_dhcpv4
)
485 iface
->dhcpv4
= mode
;
491 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
492 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
493 iface
->dhcpv6
= mode
;
498 if ((c
= tb
[IFACE_ATTR_NDP
])) {
499 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
505 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
506 struct blob_attr
*cur
;
509 blobmsg_for_each_attr(cur
, c
, rem
) {
510 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
513 struct in_addr addr4
;
514 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
515 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
516 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
517 if (!iface
->dhcpv4_router
)
520 iface
->dhcpv4_router
[iface
->dhcpv4_router_cnt
- 1] = addr4
;
526 if ((c
= tb
[IFACE_ATTR_DNS
])) {
527 struct blob_attr
*cur
;
530 iface
->always_rewrite_dns
= true;
531 blobmsg_for_each_attr(cur
, c
, rem
) {
532 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
535 struct in_addr addr4
;
536 struct in6_addr addr6
;
537 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
538 iface
->dhcpv4_dns
= realloc(iface
->dhcpv4_dns
,
539 (++iface
->dhcpv4_dns_cnt
) * sizeof(*iface
->dhcpv4_dns
));
540 if (!iface
->dhcpv4_dns
)
543 iface
->dhcpv4_dns
[iface
->dhcpv4_dns_cnt
- 1] = addr4
;
544 } else if (inet_pton(AF_INET6
, blobmsg_get_string(cur
), &addr6
) == 1) {
545 iface
->dns
= realloc(iface
->dns
,
546 (++iface
->dns_cnt
) * sizeof(*iface
->dns
));
550 iface
->dns
[iface
->dns_cnt
- 1] = addr6
;
556 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
557 struct blob_attr
*cur
;
560 blobmsg_for_each_attr(cur
, c
, rem
) {
561 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
565 char *domain
= blobmsg_get_string(cur
);
566 size_t domainlen
= strlen(domain
);
567 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
568 domain
[domainlen
- 1] = 0;
570 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
574 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
578 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
579 iface
->search_len
+= len
;
583 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
584 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
585 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
588 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
589 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
590 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
591 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
594 if ((c
= tb
[IFACE_ATTR_DHCPV6_ASSIGNALL
]))
595 iface
->dhcpv6_assignall
= blobmsg_get_bool(c
);
597 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
598 iface
->default_router
= blobmsg_get_u32(c
);
600 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
601 iface
->managed
= blobmsg_get_u32(c
);
603 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
604 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
606 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
607 iface
->ra_advrouter
= blobmsg_get_bool(c
);
609 if ((c
= tb
[IFACE_ATTR_RA_MININTERVAL
]))
610 iface
->ra_mininterval
= blobmsg_get_u32(c
);
612 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
613 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
615 if ((c
= tb
[IFACE_ATTR_RA_LIFETIME
]))
616 iface
->ra_lifetime
= blobmsg_get_u32(c
);
618 if ((c
= tb
[IFACE_ATTR_RA_USELEASETIME
]))
619 iface
->ra_useleasetime
= blobmsg_get_bool(c
);
621 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
622 const char *prio
= blobmsg_get_string(c
);
624 if (!strcmp(prio
, "high"))
625 iface
->route_preference
= 1;
626 else if (!strcmp(prio
, "low"))
627 iface
->route_preference
= -1;
628 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
629 iface
->route_preference
= 0;
634 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
635 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
636 sizeof(iface
->dhcpv6_pd_manager
) - 1);
638 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
639 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
642 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
643 iface
->learn_routes
= blobmsg_get_bool(c
);
645 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
646 iface
->external
= blobmsg_get_bool(c
);
651 close_interface(iface
);
655 static int set_interface(struct uci_section
*s
)
657 blob_buf_init(&b
, 0);
658 uci_to_blob(&b
, s
, &interface_attr_list
);
660 return config_parse_interface(blob_data(b
.head
), blob_len(b
.head
), s
->e
.name
, true);
663 void odhcpd_reload(void)
665 struct uci_context
*uci
= uci_alloc_context();
667 while (!list_empty(&leases
))
668 free_lease(list_first_entry(&leases
, struct lease
, head
));
670 struct interface
*master
= NULL
, *i
, *n
;
675 list_for_each_entry(i
, &interfaces
, head
)
678 struct uci_package
*dhcp
= NULL
;
679 if (!uci_load(uci
, "dhcp", &dhcp
)) {
680 struct uci_element
*e
;
681 uci_foreach_element(&dhcp
->sections
, e
) {
682 struct uci_section
*s
= uci_to_section(e
);
683 if (!strcmp(s
->type
, "host"))
685 else if (!strcmp(s
->type
, "odhcpd"))
689 uci_foreach_element(&dhcp
->sections
, e
) {
690 struct uci_section
*s
= uci_to_section(e
);
691 if (!strcmp(s
->type
, "dhcp"))
696 if (config
.dhcp_statefile
) {
697 char *path
= strdup(config
.dhcp_statefile
);
699 mkdir_p(dirname(path
), 0755);
704 ubus_apply_network();
707 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
710 list_for_each_entry(i
, &interfaces
, head
) {
714 if (i
->dhcpv6
== RELAYD_HYBRID
|| i
->dhcpv6
== RELAYD_RELAY
)
715 any_dhcpv6_slave
= true;
717 if (i
->ra
== RELAYD_HYBRID
|| i
->ra
== RELAYD_RELAY
)
720 if (i
->ndp
== RELAYD_HYBRID
|| i
->ndp
== RELAYD_RELAY
)
721 any_ndp_slave
= true;
724 /* Evaluate hybrid mode for master */
725 list_for_each_entry(i
, &interfaces
, head
) {
729 enum odhcpd_mode hybrid_mode
= RELAYD_DISABLED
;
731 if (!ubus_has_prefix(i
->name
, i
->ifname
))
732 hybrid_mode
= RELAYD_RELAY
;
735 if (i
->dhcpv6
== RELAYD_HYBRID
)
736 i
->dhcpv6
= hybrid_mode
;
738 if (i
->dhcpv6
== RELAYD_RELAY
&& !any_dhcpv6_slave
)
739 i
->dhcpv6
= RELAYD_DISABLED
;
741 if (i
->ra
== RELAYD_HYBRID
)
744 if (i
->ra
== RELAYD_RELAY
&& !any_ra_slave
)
745 i
->ra
= RELAYD_DISABLED
;
747 if (i
->ndp
== RELAYD_HYBRID
)
748 i
->ndp
= hybrid_mode
;
750 if (i
->ndp
== RELAYD_RELAY
&& !any_ndp_slave
)
751 i
->ndp
= RELAYD_DISABLED
;
753 if (i
->dhcpv6
== RELAYD_RELAY
|| i
->ra
== RELAYD_RELAY
|| i
->ndp
== RELAYD_RELAY
)
758 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
760 /* Resolve hybrid mode */
761 if (i
->dhcpv6
== RELAYD_HYBRID
)
762 i
->dhcpv6
= (master
&& master
->dhcpv6
== RELAYD_RELAY
) ?
763 RELAYD_RELAY
: RELAYD_SERVER
;
765 if (i
->ra
== RELAYD_HYBRID
)
766 i
->ra
= (master
&& master
->ra
== RELAYD_RELAY
) ?
767 RELAYD_RELAY
: RELAYD_SERVER
;
769 if (i
->ndp
== RELAYD_HYBRID
)
770 i
->ndp
= (master
&& master
->ndp
== RELAYD_RELAY
) ?
771 RELAYD_RELAY
: RELAYD_DISABLED
;
773 setup_router_interface(i
, !i
->ignore
|| i
->ra
!= RELAYD_DISABLED
);
774 setup_dhcpv6_interface(i
, !i
->ignore
|| i
->dhcpv6
!= RELAYD_DISABLED
);
775 setup_ndp_interface(i
, !i
->ignore
|| i
->ndp
!= RELAYD_DISABLED
);
776 setup_dhcpv4_interface(i
, !i
->ignore
|| i
->dhcpv4
!= RELAYD_DISABLED
);
781 ndp_handle_addr6_dump();
782 uci_unload(uci
, dhcp
);
783 uci_free_context(uci
);
786 static void handle_signal(int signal
)
790 if (signal
== SIGHUP
) {
791 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
796 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
799 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
804 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
806 void odhcpd_run(void)
808 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
810 reload_fd
.fd
= reload_pipe
[0];
811 uloop_fd_add(&reload_fd
, ULOOP_READ
);
813 signal(SIGTERM
, handle_signal
);
814 signal(SIGINT
, handle_signal
);
815 signal(SIGHUP
, handle_signal
);
825 while (!list_empty(&interfaces
))
826 close_interface(list_first_entry(&interfaces
, struct interface
, head
));