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_DHCPV4_FORCERECONF
,
46 IFACE_ATTR_DHCPV6_RAW
,
47 IFACE_ATTR_DHCPV6_ASSIGNALL
,
48 IFACE_ATTR_RA_DEFAULT
,
49 IFACE_ATTR_RA_MANAGEMENT
,
50 IFACE_ATTR_RA_OFFLINK
,
51 IFACE_ATTR_RA_PREFERENCE
,
52 IFACE_ATTR_RA_ADVROUTER
,
53 IFACE_ATTR_RA_MININTERVAL
,
54 IFACE_ATTR_RA_MAXINTERVAL
,
55 IFACE_ATTR_RA_LIFETIME
,
56 IFACE_ATTR_RA_USELEASETIME
,
57 IFACE_ATTR_RA_REACHABLETIME
,
58 IFACE_ATTR_RA_RETRANSTIME
,
59 IFACE_ATTR_RA_HOPLIMIT
,
61 IFACE_ATTR_PD_MANAGER
,
63 IFACE_ATTR_NDPROXY_ROUTING
,
64 IFACE_ATTR_NDPROXY_SLAVE
,
68 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
69 [IFACE_ATTR_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
70 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
71 [IFACE_ATTR_NETWORKID
] = { .name
= "networkid", .type
= BLOBMSG_TYPE_STRING
},
72 [IFACE_ATTR_DYNAMICDHCP
] = { .name
= "dynamicdhcp", .type
= BLOBMSG_TYPE_BOOL
},
73 [IFACE_ATTR_IGNORE
] = { .name
= "ignore", .type
= BLOBMSG_TYPE_BOOL
},
74 [IFACE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
75 [IFACE_ATTR_START
] = { .name
= "start", .type
= BLOBMSG_TYPE_INT32
},
76 [IFACE_ATTR_LIMIT
] = { .name
= "limit", .type
= BLOBMSG_TYPE_INT32
},
77 [IFACE_ATTR_MASTER
] = { .name
= "master", .type
= BLOBMSG_TYPE_BOOL
},
78 [IFACE_ATTR_UPSTREAM
] = { .name
= "upstream", .type
= BLOBMSG_TYPE_ARRAY
},
79 [IFACE_ATTR_RA
] = { .name
= "ra", .type
= BLOBMSG_TYPE_STRING
},
80 [IFACE_ATTR_DHCPV4
] = { .name
= "dhcpv4", .type
= BLOBMSG_TYPE_STRING
},
81 [IFACE_ATTR_DHCPV6
] = { .name
= "dhcpv6", .type
= BLOBMSG_TYPE_STRING
},
82 [IFACE_ATTR_NDP
] = { .name
= "ndp", .type
= BLOBMSG_TYPE_STRING
},
83 [IFACE_ATTR_ROUTER
] = { .name
= "router", .type
= BLOBMSG_TYPE_ARRAY
},
84 [IFACE_ATTR_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
85 [IFACE_ATTR_DOMAIN
] = { .name
= "domain", .type
= BLOBMSG_TYPE_ARRAY
},
86 [IFACE_ATTR_FILTER_CLASS
] = { .name
= "filter_class", .type
= BLOBMSG_TYPE_STRING
},
87 [IFACE_ATTR_DHCPV4_FORCERECONF
] = { .name
= "dhcpv4_forcereconf", .type
= BLOBMSG_TYPE_BOOL
},
88 [IFACE_ATTR_DHCPV6_RAW
] = { .name
= "dhcpv6_raw", .type
= BLOBMSG_TYPE_STRING
},
89 [IFACE_ATTR_DHCPV6_ASSIGNALL
] = { .name
="dhcpv6_assignall", .type
= BLOBMSG_TYPE_BOOL
},
90 [IFACE_ATTR_PD_MANAGER
] = { .name
= "pd_manager", .type
= BLOBMSG_TYPE_STRING
},
91 [IFACE_ATTR_PD_CER
] = { .name
= "pd_cer", .type
= BLOBMSG_TYPE_STRING
},
92 [IFACE_ATTR_RA_DEFAULT
] = { .name
= "ra_default", .type
= BLOBMSG_TYPE_INT32
},
93 [IFACE_ATTR_RA_MANAGEMENT
] = { .name
= "ra_management", .type
= BLOBMSG_TYPE_INT32
},
94 [IFACE_ATTR_RA_OFFLINK
] = { .name
= "ra_offlink", .type
= BLOBMSG_TYPE_BOOL
},
95 [IFACE_ATTR_RA_PREFERENCE
] = { .name
= "ra_preference", .type
= BLOBMSG_TYPE_STRING
},
96 [IFACE_ATTR_RA_ADVROUTER
] = { .name
= "ra_advrouter", .type
= BLOBMSG_TYPE_BOOL
},
97 [IFACE_ATTR_RA_MININTERVAL
] = { .name
= "ra_mininterval", .type
= BLOBMSG_TYPE_INT32
},
98 [IFACE_ATTR_RA_MAXINTERVAL
] = { .name
= "ra_maxinterval", .type
= BLOBMSG_TYPE_INT32
},
99 [IFACE_ATTR_RA_LIFETIME
] = { .name
= "ra_lifetime", .type
= BLOBMSG_TYPE_INT32
},
100 [IFACE_ATTR_RA_USELEASETIME
] = { .name
= "ra_useleasetime", .type
= BLOBMSG_TYPE_BOOL
},
101 [IFACE_ATTR_RA_REACHABLETIME
] = { .name
= "ra_reachabletime", .type
= BLOBMSG_TYPE_INT32
},
102 [IFACE_ATTR_RA_RETRANSTIME
] = { .name
= "ra_retranstime", .type
= BLOBMSG_TYPE_INT32
},
103 [IFACE_ATTR_RA_HOPLIMIT
] = { .name
= "ra_hoplimit", .type
= BLOBMSG_TYPE_INT32
},
104 [IFACE_ATTR_RA_MTU
] = { .name
= "ra_mtu", .type
= BLOBMSG_TYPE_INT32
},
105 [IFACE_ATTR_NDPROXY_ROUTING
] = { .name
= "ndproxy_routing", .type
= BLOBMSG_TYPE_BOOL
},
106 [IFACE_ATTR_NDPROXY_SLAVE
] = { .name
= "ndproxy_slave", .type
= BLOBMSG_TYPE_BOOL
},
109 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
110 [IFACE_ATTR_UPSTREAM
] = { .type
= BLOBMSG_TYPE_STRING
},
111 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
112 [IFACE_ATTR_DOMAIN
] = { .type
= BLOBMSG_TYPE_STRING
},
115 const struct uci_blob_param_list interface_attr_list
= {
116 .n_params
= IFACE_ATTR_MAX
,
117 .params
= iface_attrs
,
118 .info
= iface_attr_info
,
126 LEASE_ATTR_LEASETIME
,
131 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
132 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
133 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
134 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
135 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
136 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
137 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
140 const struct uci_blob_param_list lease_attr_list
= {
141 .n_params
= LEASE_ATTR_MAX
,
142 .params
= lease_attrs
,
147 ODHCPD_ATTR_MAINDHCP
,
148 ODHCPD_ATTR_LEASEFILE
,
149 ODHCPD_ATTR_LEASETRIGGER
,
150 ODHCPD_ATTR_LOGLEVEL
,
154 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
155 [ODHCPD_ATTR_LEGACY
] = { .name
= "legacy", .type
= BLOBMSG_TYPE_BOOL
},
156 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
157 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
158 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
159 [ODHCPD_ATTR_LOGLEVEL
] = { .name
= "loglevel", .type
= BLOBMSG_TYPE_INT32
},
162 const struct uci_blob_param_list odhcpd_attr_list
= {
163 .n_params
= ODHCPD_ATTR_MAX
,
164 .params
= odhcpd_attrs
,
167 static int mkdir_p(char *dir
, mode_t mask
)
169 char *l
= strrchr(dir
, '/');
177 if (mkdir_p(dir
, mask
))
182 ret
= mkdir(dir
, mask
);
183 if (ret
&& errno
== EEXIST
)
187 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
192 static void free_lease(struct lease
*l
)
201 static struct interface
* get_interface(const char *name
)
204 list_for_each_entry(c
, &interfaces
, head
)
205 if (!strcmp(c
->name
, name
))
210 static void set_interface_defaults(struct interface
*iface
)
212 iface
->learn_routes
= 1;
213 iface
->dhcpv4_leasetime
= 43200;
214 iface
->dhcpv6_assignall
= true;
215 iface
->ra_managed
= RA_MANAGED_MFLAG
;
216 iface
->ra_maxinterval
= 600;
217 iface
->ra_mininterval
= iface
->ra_maxinterval
/3;
218 iface
->ra_lifetime
= -1;
221 static void clean_interface(struct interface
*iface
)
225 free(iface
->upstream
);
226 free(iface
->dhcpv4_router
);
227 free(iface
->dhcpv4_dns
);
228 free(iface
->dhcpv6_raw
);
229 free(iface
->filter_class
);
230 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
231 set_interface_defaults(iface
);
234 static void close_interface(struct interface
*iface
)
236 if (iface
->head
.next
)
237 list_del(&iface
->head
);
239 router_setup_interface(iface
, false);
240 dhcpv6_setup_interface(iface
, false);
241 ndp_setup_interface(iface
, false);
242 dhcpv4_setup_interface(iface
, false);
244 clean_interface(iface
);
251 static int parse_mode(const char *mode
)
253 if (!strcmp(mode
, "disabled"))
254 return MODE_DISABLED
;
255 else if (!strcmp(mode
, "server"))
257 else if (!strcmp(mode
, "relay"))
259 else if (!strcmp(mode
, "hybrid"))
265 static void set_config(struct uci_section
*s
)
267 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
269 blob_buf_init(&b
, 0);
270 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
271 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
273 if ((c
= tb
[ODHCPD_ATTR_LEGACY
]))
274 config
.legacy
= blobmsg_get_bool(c
);
276 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
277 config
.main_dhcpv4
= blobmsg_get_bool(c
);
279 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
280 free(config
.dhcp_statefile
);
281 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
284 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
285 free(config
.dhcp_cb
);
286 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
289 if ((c
= tb
[ODHCPD_ATTR_LOGLEVEL
])) {
290 int log_level
= (blobmsg_get_u32(c
) & LOG_PRIMASK
);
292 if (config
.log_level
!= log_level
) {
293 config
.log_level
= log_level
;
294 setlogmask(LOG_UPTO(config
.log_level
));
299 static double parse_leasetime(struct blob_attr
*c
) {
300 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
301 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
303 if (time
&& endptr
&& endptr
[0]) {
304 if (endptr
[0] == 's')
306 else if (endptr
[0] == 'm')
308 else if (endptr
[0] == 'h')
310 else if (endptr
[0] == 'd')
312 else if (endptr
[0] == 'w')
313 time
*= 7 * 24 * 3600;
327 static int set_lease(struct uci_section
*s
)
329 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
331 blob_buf_init(&b
, 0);
332 uci_to_blob(&b
, s
, &lease_attr_list
);
333 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
336 if ((c
= tb
[LEASE_ATTR_NAME
]))
337 hostlen
= blobmsg_data_len(c
);
339 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
344 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
346 if ((c
= tb
[LEASE_ATTR_IP
]))
347 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
350 if ((c
= tb
[LEASE_ATTR_MAC
]))
351 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
354 if ((c
= tb
[LEASE_ATTR_DUID
])) {
355 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
356 lease
->duid
= malloc(duidlen
);
360 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
361 duidlen
, blobmsg_get_string(c
));
366 lease
->duid_len
= len
;
369 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
371 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
376 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
377 double time
= parse_leasetime(c
);
381 lease
->dhcpv4_leasetime
= time
;
384 list_add(&lease
->head
, &leases
);
394 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
396 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
397 bool get_addrs
= false;
399 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
401 if (tb
[IFACE_ATTR_INTERFACE
])
402 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
407 struct interface
*iface
= get_interface(name
);
411 iface
= calloc_a(sizeof(*iface
), &iface_name
, strlen(name
) + 1);
415 iface
->name
= strcpy(iface_name
, name
);
417 set_interface_defaults(iface
);
419 list_add(&iface
->head
, &interfaces
);
420 get_addrs
= overwrite
= true;
423 const char *ifname
= NULL
;
425 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
426 ifname
= blobmsg_get_string(c
);
427 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
428 ifname
= blobmsg_get_string(c
);
432 if (overwrite
|| !iface
->ifname
)
433 ifname
= ubus_get_ifname(name
);
436 if (!iface
->ifname
&& !ifname
)
441 iface
->ifname
= strdup(ifname
);
446 if (!iface
->ifindex
&&
447 (iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
452 ssize_t len
= netlink_get_interface_addrs(iface
->ifindex
,
453 true, &iface
->addr6
);
456 iface
->addr6_len
= len
;
458 len
= netlink_get_interface_addrs(iface
->ifindex
,
459 false, &iface
->addr4
);
461 iface
->addr4_len
= len
;
466 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
467 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
469 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
470 iface
->ignore
= blobmsg_get_bool(c
);
472 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
473 double time
= parse_leasetime(c
);
477 iface
->dhcpv4_leasetime
= time
;
480 if ((c
= tb
[IFACE_ATTR_START
])) {
481 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
483 if (config
.main_dhcpv4
&& config
.legacy
)
484 iface
->dhcpv4
= MODE_SERVER
;
487 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
488 iface
->dhcpv4_end
.s_addr
= htonl(
489 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
491 if ((c
= tb
[IFACE_ATTR_MASTER
]))
492 iface
->master
= blobmsg_get_bool(c
);
494 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
495 struct blob_attr
*cur
;
498 blobmsg_for_each_attr(cur
, c
, rem
) {
499 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
502 iface
->upstream
= realloc(iface
->upstream
,
503 iface
->upstream_len
+ blobmsg_data_len(cur
));
504 if (!iface
->upstream
)
507 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
508 iface
->upstream_len
+= blobmsg_data_len(cur
);
513 if ((c
= tb
[IFACE_ATTR_RA
])) {
514 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
520 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
521 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0) {
522 if (config
.main_dhcpv4
)
523 iface
->dhcpv4
= mode
;
529 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
530 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
531 iface
->dhcpv6
= mode
;
536 if ((c
= tb
[IFACE_ATTR_NDP
])) {
537 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
543 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
544 struct blob_attr
*cur
;
547 blobmsg_for_each_attr(cur
, c
, rem
) {
548 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
551 struct in_addr addr4
;
552 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
553 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
554 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
555 if (!iface
->dhcpv4_router
)
558 iface
->dhcpv4_router
[iface
->dhcpv4_router_cnt
- 1] = addr4
;
564 if ((c
= tb
[IFACE_ATTR_DNS
])) {
565 struct blob_attr
*cur
;
568 iface
->always_rewrite_dns
= true;
569 blobmsg_for_each_attr(cur
, c
, rem
) {
570 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
573 struct in_addr addr4
;
574 struct in6_addr addr6
;
575 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
576 iface
->dhcpv4_dns
= realloc(iface
->dhcpv4_dns
,
577 (++iface
->dhcpv4_dns_cnt
) * sizeof(*iface
->dhcpv4_dns
));
578 if (!iface
->dhcpv4_dns
)
581 iface
->dhcpv4_dns
[iface
->dhcpv4_dns_cnt
- 1] = addr4
;
582 } else if (inet_pton(AF_INET6
, blobmsg_get_string(cur
), &addr6
) == 1) {
583 iface
->dns
= realloc(iface
->dns
,
584 (++iface
->dns_cnt
) * sizeof(*iface
->dns
));
588 iface
->dns
[iface
->dns_cnt
- 1] = addr6
;
594 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
595 struct blob_attr
*cur
;
598 blobmsg_for_each_attr(cur
, c
, rem
) {
599 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
603 char *domain
= blobmsg_get_string(cur
);
604 size_t domainlen
= strlen(domain
);
605 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
606 domain
[domainlen
- 1] = 0;
608 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
612 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
616 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
617 iface
->search_len
+= len
;
621 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
622 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
623 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
626 if ((c
= tb
[IFACE_ATTR_DHCPV4_FORCERECONF
]))
627 iface
->dhcpv4_forcereconf
= blobmsg_get_bool(c
);
629 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
630 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
631 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
632 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
635 if ((c
= tb
[IFACE_ATTR_DHCPV6_ASSIGNALL
]))
636 iface
->dhcpv6_assignall
= blobmsg_get_bool(c
);
638 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
639 iface
->default_router
= blobmsg_get_u32(c
);
641 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
642 iface
->ra_managed
= blobmsg_get_u32(c
);
644 if ((c
= tb
[IFACE_ATTR_RA_REACHABLETIME
])) {
645 uint32_t ra_reachabletime
= blobmsg_get_u32(c
);
646 if (ra_reachabletime
> 3600000)
649 iface
->ra_reachabletime
= ra_reachabletime
;
652 if ((c
= tb
[IFACE_ATTR_RA_RETRANSTIME
])) {
653 uint32_t ra_retranstime
= blobmsg_get_u32(c
);
654 if (ra_retranstime
> 60000)
657 iface
->ra_retranstime
= ra_retranstime
;
660 if ((c
= tb
[IFACE_ATTR_RA_HOPLIMIT
])) {
661 uint32_t ra_hoplimit
= blobmsg_get_u32(c
);
662 if (ra_hoplimit
> 255)
665 iface
->ra_hoplimit
= ra_hoplimit
;
668 if ((c
= tb
[IFACE_ATTR_RA_MTU
])) {
669 uint32_t ra_mtu
= blobmsg_get_u32(c
);
670 if (ra_mtu
< 1280 || ra_mtu
> 65535)
673 iface
->ra_mtu
= ra_mtu
;
676 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
677 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
679 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
680 iface
->ra_advrouter
= blobmsg_get_bool(c
);
682 if ((c
= tb
[IFACE_ATTR_RA_MININTERVAL
]))
683 iface
->ra_mininterval
= blobmsg_get_u32(c
);
685 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
686 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
688 if ((c
= tb
[IFACE_ATTR_RA_LIFETIME
]))
689 iface
->ra_lifetime
= blobmsg_get_u32(c
);
691 if ((c
= tb
[IFACE_ATTR_RA_USELEASETIME
]))
692 iface
->ra_useleasetime
= blobmsg_get_bool(c
);
694 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
695 const char *prio
= blobmsg_get_string(c
);
697 if (!strcmp(prio
, "high"))
698 iface
->route_preference
= 1;
699 else if (!strcmp(prio
, "low"))
700 iface
->route_preference
= -1;
701 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
702 iface
->route_preference
= 0;
707 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
708 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
709 sizeof(iface
->dhcpv6_pd_manager
) - 1);
711 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
712 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
715 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
716 iface
->learn_routes
= blobmsg_get_bool(c
);
718 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
719 iface
->external
= blobmsg_get_bool(c
);
724 close_interface(iface
);
728 static int set_interface(struct uci_section
*s
)
730 blob_buf_init(&b
, 0);
731 uci_to_blob(&b
, s
, &interface_attr_list
);
733 return config_parse_interface(blob_data(b
.head
), blob_len(b
.head
), s
->e
.name
, true);
736 void odhcpd_reload(void)
738 struct uci_context
*uci
= uci_alloc_context();
740 while (!list_empty(&leases
))
741 free_lease(list_first_entry(&leases
, struct lease
, head
));
743 struct interface
*master
= NULL
, *i
, *n
;
748 list_for_each_entry(i
, &interfaces
, head
)
751 struct uci_package
*dhcp
= NULL
;
752 if (!uci_load(uci
, "dhcp", &dhcp
)) {
753 struct uci_element
*e
;
754 uci_foreach_element(&dhcp
->sections
, e
) {
755 struct uci_section
*s
= uci_to_section(e
);
756 if (!strcmp(s
->type
, "host"))
758 else if (!strcmp(s
->type
, "odhcpd"))
762 uci_foreach_element(&dhcp
->sections
, e
) {
763 struct uci_section
*s
= uci_to_section(e
);
764 if (!strcmp(s
->type
, "dhcp"))
769 if (config
.dhcp_statefile
) {
770 char *path
= strdup(config
.dhcp_statefile
);
772 mkdir_p(dirname(path
), 0755);
777 ubus_apply_network();
780 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
783 list_for_each_entry(i
, &interfaces
, head
) {
787 if (i
->dhcpv6
== MODE_HYBRID
|| i
->dhcpv6
== MODE_RELAY
)
788 any_dhcpv6_slave
= true;
790 if (i
->ra
== MODE_HYBRID
|| i
->ra
== MODE_RELAY
)
793 if (i
->ndp
== MODE_HYBRID
|| i
->ndp
== MODE_RELAY
)
794 any_ndp_slave
= true;
797 /* Evaluate hybrid mode for master */
798 list_for_each_entry(i
, &interfaces
, head
) {
802 enum odhcpd_mode hybrid_mode
= MODE_DISABLED
;
804 if (!ubus_has_prefix(i
->name
, i
->ifname
))
805 hybrid_mode
= MODE_RELAY
;
808 if (i
->dhcpv6
== MODE_HYBRID
)
809 i
->dhcpv6
= hybrid_mode
;
811 if (i
->dhcpv6
== MODE_RELAY
&& !any_dhcpv6_slave
)
812 i
->dhcpv6
= MODE_DISABLED
;
814 if (i
->ra
== MODE_HYBRID
)
817 if (i
->ra
== MODE_RELAY
&& !any_ra_slave
)
818 i
->ra
= MODE_DISABLED
;
820 if (i
->ndp
== MODE_HYBRID
)
821 i
->ndp
= hybrid_mode
;
823 if (i
->ndp
== MODE_RELAY
&& !any_ndp_slave
)
824 i
->ndp
= MODE_DISABLED
;
826 if (i
->dhcpv6
== MODE_RELAY
|| i
->ra
== MODE_RELAY
|| i
->ndp
== MODE_RELAY
)
831 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
833 /* Resolve hybrid mode */
834 if (i
->dhcpv6
== MODE_HYBRID
)
835 i
->dhcpv6
= (master
&& master
->dhcpv6
== MODE_RELAY
) ?
836 MODE_RELAY
: MODE_SERVER
;
838 if (i
->ra
== MODE_HYBRID
)
839 i
->ra
= (master
&& master
->ra
== MODE_RELAY
) ?
840 MODE_RELAY
: MODE_SERVER
;
842 if (i
->ndp
== MODE_HYBRID
)
843 i
->ndp
= (master
&& master
->ndp
== MODE_RELAY
) ?
844 MODE_RELAY
: MODE_DISABLED
;
846 router_setup_interface(i
, !i
->ignore
|| i
->ra
!= MODE_DISABLED
);
847 dhcpv6_setup_interface(i
, !i
->ignore
|| i
->dhcpv6
!= MODE_DISABLED
);
848 ndp_setup_interface(i
, !i
->ignore
|| i
->ndp
!= MODE_DISABLED
);
849 dhcpv4_setup_interface(i
, !i
->ignore
|| i
->dhcpv4
!= MODE_DISABLED
);
854 uci_unload(uci
, dhcp
);
855 uci_free_context(uci
);
858 static void handle_signal(int signal
)
862 if (signal
== SIGHUP
) {
863 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
868 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
871 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
876 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
878 void odhcpd_run(void)
880 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
882 reload_fd
.fd
= reload_pipe
[0];
883 uloop_fd_add(&reload_fd
, ULOOP_READ
);
885 signal(SIGTERM
, handle_signal
);
886 signal(SIGINT
, handle_signal
);
887 signal(SIGHUP
, handle_signal
);
897 while (!list_empty(&interfaces
))
898 close_interface(list_first_entry(&interfaces
, struct interface
, head
));