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_REACHABLETIME
,
54 IFACE_ATTR_RA_RETRANSTIME
,
55 IFACE_ATTR_RA_HOPLIMIT
,
57 IFACE_ATTR_PD_MANAGER
,
59 IFACE_ATTR_NDPROXY_ROUTING
,
60 IFACE_ATTR_NDPROXY_SLAVE
,
64 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
65 [IFACE_ATTR_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
66 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
67 [IFACE_ATTR_NETWORKID
] = { .name
= "networkid", .type
= BLOBMSG_TYPE_STRING
},
68 [IFACE_ATTR_DYNAMICDHCP
] = { .name
= "dynamicdhcp", .type
= BLOBMSG_TYPE_BOOL
},
69 [IFACE_ATTR_IGNORE
] = { .name
= "ignore", .type
= BLOBMSG_TYPE_BOOL
},
70 [IFACE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
71 [IFACE_ATTR_START
] = { .name
= "start", .type
= BLOBMSG_TYPE_INT32
},
72 [IFACE_ATTR_LIMIT
] = { .name
= "limit", .type
= BLOBMSG_TYPE_INT32
},
73 [IFACE_ATTR_MASTER
] = { .name
= "master", .type
= BLOBMSG_TYPE_BOOL
},
74 [IFACE_ATTR_UPSTREAM
] = { .name
= "upstream", .type
= BLOBMSG_TYPE_ARRAY
},
75 [IFACE_ATTR_RA
] = { .name
= "ra", .type
= BLOBMSG_TYPE_STRING
},
76 [IFACE_ATTR_DHCPV4
] = { .name
= "dhcpv4", .type
= BLOBMSG_TYPE_STRING
},
77 [IFACE_ATTR_DHCPV6
] = { .name
= "dhcpv6", .type
= BLOBMSG_TYPE_STRING
},
78 [IFACE_ATTR_NDP
] = { .name
= "ndp", .type
= BLOBMSG_TYPE_STRING
},
79 [IFACE_ATTR_ROUTER
] = { .name
= "router", .type
= BLOBMSG_TYPE_ARRAY
},
80 [IFACE_ATTR_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
81 [IFACE_ATTR_DOMAIN
] = { .name
= "domain", .type
= BLOBMSG_TYPE_ARRAY
},
82 [IFACE_ATTR_FILTER_CLASS
] = { .name
= "filter_class", .type
= BLOBMSG_TYPE_STRING
},
83 [IFACE_ATTR_DHCPV6_RAW
] = { .name
= "dhcpv6_raw", .type
= BLOBMSG_TYPE_STRING
},
84 [IFACE_ATTR_PD_MANAGER
] = { .name
= "pd_manager", .type
= BLOBMSG_TYPE_STRING
},
85 [IFACE_ATTR_PD_CER
] = { .name
= "pd_cer", .type
= BLOBMSG_TYPE_STRING
},
86 [IFACE_ATTR_RA_DEFAULT
] = { .name
= "ra_default", .type
= BLOBMSG_TYPE_INT32
},
87 [IFACE_ATTR_RA_MANAGEMENT
] = { .name
= "ra_management", .type
= BLOBMSG_TYPE_INT32
},
88 [IFACE_ATTR_RA_OFFLINK
] = { .name
= "ra_offlink", .type
= BLOBMSG_TYPE_BOOL
},
89 [IFACE_ATTR_RA_PREFERENCE
] = { .name
= "ra_preference", .type
= BLOBMSG_TYPE_STRING
},
90 [IFACE_ATTR_RA_ADVROUTER
] = { .name
= "ra_advrouter", .type
= BLOBMSG_TYPE_BOOL
},
91 [IFACE_ATTR_RA_MININTERVAL
] = { .name
= "ra_mininterval", .type
= BLOBMSG_TYPE_INT32
},
92 [IFACE_ATTR_RA_MAXINTERVAL
] = { .name
= "ra_maxinterval", .type
= BLOBMSG_TYPE_INT32
},
93 [IFACE_ATTR_RA_LIFETIME
] = { .name
= "ra_lifetime", .type
= BLOBMSG_TYPE_INT32
},
94 [IFACE_ATTR_RA_USELEASETIME
] = { .name
= "ra_useleasetime", .type
= BLOBMSG_TYPE_BOOL
},
95 [IFACE_ATTR_RA_REACHABLETIME
] = { .name
= "ra_reachabletime", .type
= BLOBMSG_TYPE_INT32
},
96 [IFACE_ATTR_RA_RETRANSTIME
] = { .name
= "ra_retranstime", .type
= BLOBMSG_TYPE_INT32
},
97 [IFACE_ATTR_RA_HOPLIMIT
] = { .name
= "ra_hoplimit", .type
= BLOBMSG_TYPE_INT32
},
98 [IFACE_ATTR_RA_MTU
] = { .name
= "ra_mtu", .type
= BLOBMSG_TYPE_INT32
},
99 [IFACE_ATTR_NDPROXY_ROUTING
] = { .name
= "ndproxy_routing", .type
= BLOBMSG_TYPE_BOOL
},
100 [IFACE_ATTR_NDPROXY_SLAVE
] = { .name
= "ndproxy_slave", .type
= BLOBMSG_TYPE_BOOL
},
103 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
104 [IFACE_ATTR_UPSTREAM
] = { .type
= BLOBMSG_TYPE_STRING
},
105 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
106 [IFACE_ATTR_DOMAIN
] = { .type
= BLOBMSG_TYPE_STRING
},
109 const struct uci_blob_param_list interface_attr_list
= {
110 .n_params
= IFACE_ATTR_MAX
,
111 .params
= iface_attrs
,
112 .info
= iface_attr_info
,
120 LEASE_ATTR_LEASETIME
,
125 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
126 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
127 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
128 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
129 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
130 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
131 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
134 const struct uci_blob_param_list lease_attr_list
= {
135 .n_params
= LEASE_ATTR_MAX
,
136 .params
= lease_attrs
,
141 ODHCPD_ATTR_MAINDHCP
,
142 ODHCPD_ATTR_LEASEFILE
,
143 ODHCPD_ATTR_LEASETRIGGER
,
144 ODHCPD_ATTR_LOGLEVEL
,
148 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
149 [ODHCPD_ATTR_LEGACY
] = { .name
= "legacy", .type
= BLOBMSG_TYPE_BOOL
},
150 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
151 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
152 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
153 [ODHCPD_ATTR_LOGLEVEL
] = { .name
= "loglevel", .type
= BLOBMSG_TYPE_INT32
},
156 const struct uci_blob_param_list odhcpd_attr_list
= {
157 .n_params
= ODHCPD_ATTR_MAX
,
158 .params
= odhcpd_attrs
,
161 static int mkdir_p(char *dir
, mode_t mask
)
163 char *l
= strrchr(dir
, '/');
171 if (mkdir_p(dir
, mask
))
176 ret
= mkdir(dir
, mask
);
177 if (ret
&& errno
== EEXIST
)
181 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
186 static void free_lease(struct lease
*l
)
195 static struct interface
* get_interface(const char *name
)
198 list_for_each_entry(c
, &interfaces
, head
)
199 if (!strcmp(c
->name
, name
))
204 static void set_interface_defaults(struct interface
*iface
)
207 iface
->learn_routes
= 1;
208 iface
->dhcpv4_leasetime
= 43200;
209 iface
->ra_maxinterval
= 600;
210 iface
->ra_mininterval
= iface
->ra_maxinterval
/3;
211 iface
->ra_lifetime
= -1;
214 static void clean_interface(struct interface
*iface
)
218 free(iface
->upstream
);
219 free(iface
->dhcpv4_router
);
220 free(iface
->dhcpv4_dns
);
221 free(iface
->dhcpv6_raw
);
222 free(iface
->filter_class
);
223 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
224 set_interface_defaults(iface
);
227 static void close_interface(struct interface
*iface
)
229 if (iface
->head
.next
)
230 list_del(&iface
->head
);
232 setup_router_interface(iface
, false);
233 setup_dhcpv6_interface(iface
, false);
234 setup_ndp_interface(iface
, false);
235 setup_dhcpv4_interface(iface
, false);
237 clean_interface(iface
);
241 static int parse_mode(const char *mode
)
243 if (!strcmp(mode
, "disabled"))
244 return RELAYD_DISABLED
;
245 else if (!strcmp(mode
, "server"))
246 return RELAYD_SERVER
;
247 else if (!strcmp(mode
, "relay"))
249 else if (!strcmp(mode
, "hybrid"))
250 return RELAYD_HYBRID
;
255 static void set_config(struct uci_section
*s
)
257 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
259 blob_buf_init(&b
, 0);
260 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
261 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
263 if ((c
= tb
[ODHCPD_ATTR_LEGACY
]))
264 config
.legacy
= blobmsg_get_bool(c
);
266 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
267 config
.main_dhcpv4
= blobmsg_get_bool(c
);
269 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
270 free(config
.dhcp_statefile
);
271 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
274 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
275 free(config
.dhcp_cb
);
276 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
279 if ((c
= tb
[ODHCPD_ATTR_LOGLEVEL
])) {
280 int log_level
= (blobmsg_get_u32(c
) & LOG_PRIMASK
);
282 if (config
.log_level
!= log_level
) {
283 config
.log_level
= log_level
;
284 setlogmask(LOG_UPTO(config
.log_level
));
289 static double parse_leasetime(struct blob_attr
*c
) {
290 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
291 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
293 if (time
&& endptr
&& endptr
[0]) {
294 if (endptr
[0] == 's')
296 else if (endptr
[0] == 'm')
298 else if (endptr
[0] == 'h')
300 else if (endptr
[0] == 'd')
302 else if (endptr
[0] == 'w')
303 time
*= 7 * 24 * 3600;
317 static int set_lease(struct uci_section
*s
)
319 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
321 blob_buf_init(&b
, 0);
322 uci_to_blob(&b
, s
, &lease_attr_list
);
323 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
326 if ((c
= tb
[LEASE_ATTR_NAME
]))
327 hostlen
= blobmsg_data_len(c
);
329 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
334 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
336 if ((c
= tb
[LEASE_ATTR_IP
]))
337 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
340 if ((c
= tb
[LEASE_ATTR_MAC
]))
341 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
344 if ((c
= tb
[LEASE_ATTR_DUID
])) {
345 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
346 lease
->duid
= malloc(duidlen
);
350 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
351 duidlen
, blobmsg_get_string(c
));
356 lease
->duid_len
= len
;
359 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
361 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
366 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
367 double time
= parse_leasetime(c
);
371 lease
->dhcpv4_leasetime
= time
;
374 list_add(&lease
->head
, &leases
);
384 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
386 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
387 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
389 if (tb
[IFACE_ATTR_INTERFACE
])
390 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
395 struct interface
*iface
= get_interface(name
);
397 iface
= calloc(1, sizeof(*iface
));
401 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
403 set_interface_defaults(iface
);
405 list_add(&iface
->head
, &interfaces
);
409 const char *ifname
= NULL
;
411 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
412 ifname
= blobmsg_get_string(c
);
413 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
414 ifname
= blobmsg_get_string(c
);
418 if (overwrite
|| !iface
->ifname
[0])
419 ifname
= ubus_get_ifname(name
);
422 if (!iface
->ifname
[0] && !ifname
)
426 strncpy(iface
->ifname
, ifname
, sizeof(iface
->ifname
) - 1);
428 if ((iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
433 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
434 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
436 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
437 iface
->ignore
= blobmsg_get_bool(c
);
439 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
440 double time
= parse_leasetime(c
);
444 iface
->dhcpv4_leasetime
= time
;
447 if ((c
= tb
[IFACE_ATTR_START
])) {
448 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
450 if (config
.main_dhcpv4
&& config
.legacy
)
451 iface
->dhcpv4
= RELAYD_SERVER
;
454 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
455 iface
->dhcpv4_end
.s_addr
= htonl(
456 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
458 if ((c
= tb
[IFACE_ATTR_MASTER
]))
459 iface
->master
= blobmsg_get_bool(c
);
461 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
462 struct blob_attr
*cur
;
465 blobmsg_for_each_attr(cur
, c
, rem
) {
466 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
469 iface
->upstream
= realloc(iface
->upstream
,
470 iface
->upstream_len
+ blobmsg_data_len(cur
));
471 if (!iface
->upstream
)
474 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
475 iface
->upstream_len
+= blobmsg_data_len(cur
);
480 if ((c
= tb
[IFACE_ATTR_RA
])) {
481 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
487 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
488 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0) {
489 if (config
.main_dhcpv4
)
490 iface
->dhcpv4
= mode
;
496 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
497 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
498 iface
->dhcpv6
= mode
;
503 if ((c
= tb
[IFACE_ATTR_NDP
])) {
504 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
510 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
511 struct blob_attr
*cur
;
514 blobmsg_for_each_attr(cur
, c
, rem
) {
515 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
518 struct in_addr addr4
;
519 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
520 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
521 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
522 if (!iface
->dhcpv4_router
)
525 iface
->dhcpv4_router
[iface
->dhcpv4_router_cnt
- 1] = addr4
;
531 if ((c
= tb
[IFACE_ATTR_DNS
])) {
532 struct blob_attr
*cur
;
535 iface
->always_rewrite_dns
= true;
536 blobmsg_for_each_attr(cur
, c
, rem
) {
537 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
540 struct in_addr addr4
;
541 struct in6_addr addr6
;
542 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
543 iface
->dhcpv4_dns
= realloc(iface
->dhcpv4_dns
,
544 (++iface
->dhcpv4_dns_cnt
) * sizeof(*iface
->dhcpv4_dns
));
545 if (!iface
->dhcpv4_dns
)
548 iface
->dhcpv4_dns
[iface
->dhcpv4_dns_cnt
- 1] = addr4
;
549 } else if (inet_pton(AF_INET6
, blobmsg_get_string(cur
), &addr6
) == 1) {
550 iface
->dns
= realloc(iface
->dns
,
551 (++iface
->dns_cnt
) * sizeof(*iface
->dns
));
555 iface
->dns
[iface
->dns_cnt
- 1] = addr6
;
561 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
562 struct blob_attr
*cur
;
565 blobmsg_for_each_attr(cur
, c
, rem
) {
566 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
570 char *domain
= blobmsg_get_string(cur
);
571 size_t domainlen
= strlen(domain
);
572 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
573 domain
[domainlen
- 1] = 0;
575 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
579 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
583 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
584 iface
->search_len
+= len
;
588 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
589 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
590 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
593 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
594 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
595 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
596 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
599 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
600 iface
->default_router
= blobmsg_get_u32(c
);
602 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
603 iface
->managed
= blobmsg_get_u32(c
);
605 if ((c
= tb
[IFACE_ATTR_RA_REACHABLETIME
])) {
606 iface
->ra_reachabletime
= blobmsg_get_u32(c
);
607 if (iface
->ra_reachabletime
> 3600000)
611 if ((c
= tb
[IFACE_ATTR_RA_RETRANSTIME
]))
612 iface
->ra_retranstime
= blobmsg_get_u32(c
);
614 if ((c
= tb
[IFACE_ATTR_RA_HOPLIMIT
])) {
615 iface
->ra_hoplimit
= blobmsg_get_u32(c
);
616 if (iface
->ra_hoplimit
> 255)
620 if ((c
= tb
[IFACE_ATTR_RA_MTU
])) {
621 iface
->ra_mtu
= blobmsg_get_u32(c
);
622 if (iface
->ra_mtu
< 1280)
626 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
627 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
629 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
630 iface
->ra_advrouter
= blobmsg_get_bool(c
);
632 if ((c
= tb
[IFACE_ATTR_RA_MININTERVAL
]))
633 iface
->ra_mininterval
= blobmsg_get_u32(c
);
635 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
636 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
638 if ((c
= tb
[IFACE_ATTR_RA_LIFETIME
]))
639 iface
->ra_lifetime
= blobmsg_get_u32(c
);
641 if ((c
= tb
[IFACE_ATTR_RA_USELEASETIME
]))
642 iface
->ra_useleasetime
= blobmsg_get_bool(c
);
644 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
645 const char *prio
= blobmsg_get_string(c
);
647 if (!strcmp(prio
, "high"))
648 iface
->route_preference
= 1;
649 else if (!strcmp(prio
, "low"))
650 iface
->route_preference
= -1;
651 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
652 iface
->route_preference
= 0;
657 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
658 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
659 sizeof(iface
->dhcpv6_pd_manager
) - 1);
661 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
662 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
665 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
666 iface
->learn_routes
= blobmsg_get_bool(c
);
668 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
669 iface
->external
= blobmsg_get_bool(c
);
674 close_interface(iface
);
678 static int set_interface(struct uci_section
*s
)
680 blob_buf_init(&b
, 0);
681 uci_to_blob(&b
, s
, &interface_attr_list
);
683 return config_parse_interface(blob_data(b
.head
), blob_len(b
.head
), s
->e
.name
, true);
686 void odhcpd_reload(void)
688 struct uci_context
*uci
= uci_alloc_context();
690 while (!list_empty(&leases
))
691 free_lease(list_first_entry(&leases
, struct lease
, head
));
693 struct interface
*master
= NULL
, *i
, *n
;
698 list_for_each_entry(i
, &interfaces
, head
)
701 struct uci_package
*dhcp
= NULL
;
702 if (!uci_load(uci
, "dhcp", &dhcp
)) {
703 struct uci_element
*e
;
704 uci_foreach_element(&dhcp
->sections
, e
) {
705 struct uci_section
*s
= uci_to_section(e
);
706 if (!strcmp(s
->type
, "host"))
708 else if (!strcmp(s
->type
, "odhcpd"))
712 uci_foreach_element(&dhcp
->sections
, e
) {
713 struct uci_section
*s
= uci_to_section(e
);
714 if (!strcmp(s
->type
, "dhcp"))
719 if (config
.dhcp_statefile
) {
720 char *path
= strdup(config
.dhcp_statefile
);
722 mkdir_p(dirname(path
), 0755);
727 ubus_apply_network();
730 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
733 list_for_each_entry(i
, &interfaces
, head
) {
737 if (i
->dhcpv6
== RELAYD_HYBRID
|| i
->dhcpv6
== RELAYD_RELAY
)
738 any_dhcpv6_slave
= true;
740 if (i
->ra
== RELAYD_HYBRID
|| i
->ra
== RELAYD_RELAY
)
743 if (i
->ndp
== RELAYD_HYBRID
|| i
->ndp
== RELAYD_RELAY
)
744 any_ndp_slave
= true;
747 /* Evaluate hybrid mode for master */
748 list_for_each_entry(i
, &interfaces
, head
) {
752 enum odhcpd_mode hybrid_mode
= RELAYD_DISABLED
;
754 if (!ubus_has_prefix(i
->name
, i
->ifname
))
755 hybrid_mode
= RELAYD_RELAY
;
758 if (i
->dhcpv6
== RELAYD_HYBRID
)
759 i
->dhcpv6
= hybrid_mode
;
761 if (i
->dhcpv6
== RELAYD_RELAY
&& !any_dhcpv6_slave
)
762 i
->dhcpv6
= RELAYD_DISABLED
;
764 if (i
->ra
== RELAYD_HYBRID
)
767 if (i
->ra
== RELAYD_RELAY
&& !any_ra_slave
)
768 i
->ra
= RELAYD_DISABLED
;
770 if (i
->ndp
== RELAYD_HYBRID
)
771 i
->ndp
= hybrid_mode
;
773 if (i
->ndp
== RELAYD_RELAY
&& !any_ndp_slave
)
774 i
->ndp
= RELAYD_DISABLED
;
776 if (i
->dhcpv6
== RELAYD_RELAY
|| i
->ra
== RELAYD_RELAY
|| i
->ndp
== RELAYD_RELAY
)
781 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
783 /* Resolve hybrid mode */
784 if (i
->dhcpv6
== RELAYD_HYBRID
)
785 i
->dhcpv6
= (master
&& master
->dhcpv6
== RELAYD_RELAY
) ?
786 RELAYD_RELAY
: RELAYD_SERVER
;
788 if (i
->ra
== RELAYD_HYBRID
)
789 i
->ra
= (master
&& master
->ra
== RELAYD_RELAY
) ?
790 RELAYD_RELAY
: RELAYD_SERVER
;
792 if (i
->ndp
== RELAYD_HYBRID
)
793 i
->ndp
= (master
&& master
->ndp
== RELAYD_RELAY
) ?
794 RELAYD_RELAY
: RELAYD_DISABLED
;
796 setup_router_interface(i
, !i
->ignore
|| i
->ra
!= RELAYD_DISABLED
);
797 setup_dhcpv6_interface(i
, !i
->ignore
|| i
->dhcpv6
!= RELAYD_DISABLED
);
798 setup_ndp_interface(i
, !i
->ignore
|| i
->ndp
!= RELAYD_DISABLED
);
799 setup_dhcpv4_interface(i
, !i
->ignore
|| i
->dhcpv4
!= RELAYD_DISABLED
);
804 ndp_handle_addr6_dump();
805 uci_unload(uci
, dhcp
);
806 uci_free_context(uci
);
809 static void handle_signal(int signal
)
813 if (signal
== SIGHUP
) {
814 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
819 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
822 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
827 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
829 void odhcpd_run(void)
831 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
833 reload_fd
.fd
= reload_pipe
[0];
834 uloop_fd_add(&reload_fd
, ULOOP_READ
);
836 signal(SIGTERM
, handle_signal
);
837 signal(SIGINT
, handle_signal
);
838 signal(SIGHUP
, handle_signal
);
848 while (!list_empty(&interfaces
))
849 close_interface(list_first_entry(&interfaces
, struct interface
, head
));