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, .dhcp_cb
= NULL
,
21 .dhcp_statefile
= NULL
, .log_level
= LOG_INFO
};
27 IFACE_ATTR_DYNAMICDHCP
,
41 IFACE_ATTR_FILTER_CLASS
,
42 IFACE_ATTR_DHCPV6_RAW
,
43 IFACE_ATTR_DHCPV6_ASSIGNALL
,
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_PD_MANAGER
,
55 IFACE_ATTR_NDPROXY_ROUTING
,
56 IFACE_ATTR_NDPROXY_SLAVE
,
60 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
61 [IFACE_ATTR_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
62 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
63 [IFACE_ATTR_NETWORKID
] = { .name
= "networkid", .type
= BLOBMSG_TYPE_STRING
},
64 [IFACE_ATTR_DYNAMICDHCP
] = { .name
= "dynamicdhcp", .type
= BLOBMSG_TYPE_BOOL
},
65 [IFACE_ATTR_IGNORE
] = { .name
= "ignore", .type
= BLOBMSG_TYPE_BOOL
},
66 [IFACE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
67 [IFACE_ATTR_START
] = { .name
= "start", .type
= BLOBMSG_TYPE_INT32
},
68 [IFACE_ATTR_LIMIT
] = { .name
= "limit", .type
= BLOBMSG_TYPE_INT32
},
69 [IFACE_ATTR_MASTER
] = { .name
= "master", .type
= BLOBMSG_TYPE_BOOL
},
70 [IFACE_ATTR_UPSTREAM
] = { .name
= "upstream", .type
= BLOBMSG_TYPE_ARRAY
},
71 [IFACE_ATTR_RA
] = { .name
= "ra", .type
= BLOBMSG_TYPE_STRING
},
72 [IFACE_ATTR_DHCPV4
] = { .name
= "dhcpv4", .type
= BLOBMSG_TYPE_STRING
},
73 [IFACE_ATTR_DHCPV6
] = { .name
= "dhcpv6", .type
= BLOBMSG_TYPE_STRING
},
74 [IFACE_ATTR_NDP
] = { .name
= "ndp", .type
= BLOBMSG_TYPE_STRING
},
75 [IFACE_ATTR_ROUTER
] = { .name
= "router", .type
= BLOBMSG_TYPE_ARRAY
},
76 [IFACE_ATTR_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
77 [IFACE_ATTR_DOMAIN
] = { .name
= "domain", .type
= BLOBMSG_TYPE_ARRAY
},
78 [IFACE_ATTR_FILTER_CLASS
] = { .name
= "filter_class", .type
= BLOBMSG_TYPE_STRING
},
79 [IFACE_ATTR_DHCPV6_RAW
] = { .name
= "dhcpv6_raw", .type
= BLOBMSG_TYPE_STRING
},
80 [IFACE_ATTR_DHCPV6_ASSIGNALL
] = { .name
="dhcpv6_assignall", .type
= BLOBMSG_TYPE_BOOL
},
81 [IFACE_ATTR_PD_MANAGER
] = { .name
= "pd_manager", .type
= BLOBMSG_TYPE_STRING
},
82 [IFACE_ATTR_PD_CER
] = { .name
= "pd_cer", .type
= BLOBMSG_TYPE_STRING
},
83 [IFACE_ATTR_RA_DEFAULT
] = { .name
= "ra_default", .type
= BLOBMSG_TYPE_INT32
},
84 [IFACE_ATTR_RA_MANAGEMENT
] = { .name
= "ra_management", .type
= BLOBMSG_TYPE_INT32
},
85 [IFACE_ATTR_RA_OFFLINK
] = { .name
= "ra_offlink", .type
= BLOBMSG_TYPE_BOOL
},
86 [IFACE_ATTR_RA_PREFERENCE
] = { .name
= "ra_preference", .type
= BLOBMSG_TYPE_STRING
},
87 [IFACE_ATTR_RA_ADVROUTER
] = { .name
= "ra_advrouter", .type
= BLOBMSG_TYPE_BOOL
},
88 [IFACE_ATTR_RA_MININTERVAL
] = { .name
= "ra_mininterval", .type
= BLOBMSG_TYPE_INT32
},
89 [IFACE_ATTR_RA_MAXINTERVAL
] = { .name
= "ra_maxinterval", .type
= BLOBMSG_TYPE_INT32
},
90 [IFACE_ATTR_RA_LIFETIME
] = { .name
= "ra_lifetime", .type
= BLOBMSG_TYPE_INT32
},
91 [IFACE_ATTR_RA_USELEASETIME
] = { .name
= "ra_useleasetime", .type
= BLOBMSG_TYPE_BOOL
},
92 [IFACE_ATTR_NDPROXY_ROUTING
] = { .name
= "ndproxy_routing", .type
= BLOBMSG_TYPE_BOOL
},
93 [IFACE_ATTR_NDPROXY_SLAVE
] = { .name
= "ndproxy_slave", .type
= BLOBMSG_TYPE_BOOL
},
96 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
97 [IFACE_ATTR_UPSTREAM
] = { .type
= BLOBMSG_TYPE_STRING
},
98 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
99 [IFACE_ATTR_DOMAIN
] = { .type
= BLOBMSG_TYPE_STRING
},
102 const struct uci_blob_param_list interface_attr_list
= {
103 .n_params
= IFACE_ATTR_MAX
,
104 .params
= iface_attrs
,
105 .info
= iface_attr_info
,
113 LEASE_ATTR_LEASETIME
,
118 static const struct blobmsg_policy lease_attrs
[LEASE_ATTR_MAX
] = {
119 [LEASE_ATTR_IP
] = { .name
= "ip", .type
= BLOBMSG_TYPE_STRING
},
120 [LEASE_ATTR_MAC
] = { .name
= "mac", .type
= BLOBMSG_TYPE_STRING
},
121 [LEASE_ATTR_DUID
] = { .name
= "duid", .type
= BLOBMSG_TYPE_STRING
},
122 [LEASE_ATTR_HOSTID
] = { .name
= "hostid", .type
= BLOBMSG_TYPE_STRING
},
123 [LEASE_ATTR_LEASETIME
] = { .name
= "leasetime", .type
= BLOBMSG_TYPE_STRING
},
124 [LEASE_ATTR_NAME
] = { .name
= "name", .type
= BLOBMSG_TYPE_STRING
},
127 const struct uci_blob_param_list lease_attr_list
= {
128 .n_params
= LEASE_ATTR_MAX
,
129 .params
= lease_attrs
,
133 ODHCPD_ATTR_MAINDHCP
,
134 ODHCPD_ATTR_LEASEFILE
,
135 ODHCPD_ATTR_LEASETRIGGER
,
136 ODHCPD_ATTR_LOGLEVEL
,
140 static const struct blobmsg_policy odhcpd_attrs
[LEASE_ATTR_MAX
] = {
141 [ODHCPD_ATTR_MAINDHCP
] = { .name
= "maindhcp", .type
= BLOBMSG_TYPE_BOOL
},
142 [ODHCPD_ATTR_LEASEFILE
] = { .name
= "leasefile", .type
= BLOBMSG_TYPE_STRING
},
143 [ODHCPD_ATTR_LEASETRIGGER
] = { .name
= "leasetrigger", .type
= BLOBMSG_TYPE_STRING
},
144 [ODHCPD_ATTR_LOGLEVEL
] = { .name
= "loglevel", .type
= BLOBMSG_TYPE_INT32
},
147 const struct uci_blob_param_list odhcpd_attr_list
= {
148 .n_params
= ODHCPD_ATTR_MAX
,
149 .params
= odhcpd_attrs
,
152 static int mkdir_p(char *dir
, mode_t mask
)
154 char *l
= strrchr(dir
, '/');
162 if (mkdir_p(dir
, mask
))
167 ret
= mkdir(dir
, mask
);
168 if (ret
&& errno
== EEXIST
)
172 syslog(LOG_ERR
, "mkdir(%s, %d) failed: %s\n", dir
, mask
, strerror(errno
));
177 static void free_lease(struct lease
*l
)
186 static struct interface
* get_interface(const char *name
)
189 list_for_each_entry(c
, &interfaces
, head
)
190 if (!strcmp(c
->name
, name
))
195 static void set_interface_defaults(struct interface
*iface
)
198 iface
->learn_routes
= 1;
199 iface
->dhcpv4_leasetime
= 43200;
200 iface
->dhcpv6_assignall
= true;
201 iface
->ra_maxinterval
= 600;
202 iface
->ra_mininterval
= iface
->ra_maxinterval
/3;
203 iface
->ra_lifetime
= -1;
206 static void clean_interface(struct interface
*iface
)
210 free(iface
->upstream
);
211 free(iface
->dhcpv4_router
);
212 free(iface
->dhcpv4_dns
);
213 free(iface
->dhcpv6_raw
);
214 free(iface
->filter_class
);
215 memset(&iface
->ra
, 0, sizeof(*iface
) - offsetof(struct interface
, ra
));
216 set_interface_defaults(iface
);
219 static void close_interface(struct interface
*iface
)
221 if (iface
->head
.next
)
222 list_del(&iface
->head
);
224 setup_router_interface(iface
, false);
225 setup_dhcpv6_interface(iface
, false);
226 setup_ndp_interface(iface
, false);
227 setup_dhcpv4_interface(iface
, false);
229 clean_interface(iface
);
233 static int parse_mode(const char *mode
)
235 if (!strcmp(mode
, "disabled"))
236 return RELAYD_DISABLED
;
237 else if (!strcmp(mode
, "server"))
238 return RELAYD_SERVER
;
239 else if (!strcmp(mode
, "relay"))
241 else if (!strcmp(mode
, "hybrid"))
242 return RELAYD_HYBRID
;
247 static void set_config(struct uci_section
*s
)
249 struct blob_attr
*tb
[ODHCPD_ATTR_MAX
], *c
;
251 blob_buf_init(&b
, 0);
252 uci_to_blob(&b
, s
, &odhcpd_attr_list
);
253 blobmsg_parse(odhcpd_attrs
, ODHCPD_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
255 if ((c
= tb
[ODHCPD_ATTR_MAINDHCP
]))
256 config
.legacy
= blobmsg_get_bool(c
);
258 if ((c
= tb
[ODHCPD_ATTR_LEASEFILE
])) {
259 free(config
.dhcp_statefile
);
260 config
.dhcp_statefile
= strdup(blobmsg_get_string(c
));
263 if ((c
= tb
[ODHCPD_ATTR_LEASETRIGGER
])) {
264 free(config
.dhcp_cb
);
265 config
.dhcp_cb
= strdup(blobmsg_get_string(c
));
268 if ((c
= tb
[ODHCPD_ATTR_LOGLEVEL
])) {
269 int log_level
= (blobmsg_get_u32(c
) & LOG_PRIMASK
);
271 if (config
.log_level
!= log_level
) {
272 config
.log_level
= log_level
;
273 setlogmask(LOG_UPTO(config
.log_level
));
278 static double parse_leasetime(struct blob_attr
*c
) {
279 char *val
= blobmsg_get_string(c
), *endptr
= NULL
;
280 double time
= strcmp(val
, "infinite") ? strtod(val
, &endptr
) : UINT32_MAX
;
282 if (time
&& endptr
&& endptr
[0]) {
283 if (endptr
[0] == 's')
285 else if (endptr
[0] == 'm')
287 else if (endptr
[0] == 'h')
289 else if (endptr
[0] == 'd')
291 else if (endptr
[0] == 'w')
292 time
*= 7 * 24 * 3600;
306 static int set_lease(struct uci_section
*s
)
308 struct blob_attr
*tb
[LEASE_ATTR_MAX
], *c
;
310 blob_buf_init(&b
, 0);
311 uci_to_blob(&b
, s
, &lease_attr_list
);
312 blobmsg_parse(lease_attrs
, LEASE_ATTR_MAX
, tb
, blob_data(b
.head
), blob_len(b
.head
));
315 if ((c
= tb
[LEASE_ATTR_NAME
]))
316 hostlen
= blobmsg_data_len(c
);
318 struct lease
*lease
= calloc(1, sizeof(*lease
) + hostlen
);
323 memcpy(lease
->hostname
, blobmsg_get_string(c
), hostlen
);
325 if ((c
= tb
[LEASE_ATTR_IP
]))
326 if (inet_pton(AF_INET
, blobmsg_get_string(c
), &lease
->ipaddr
) < 0)
329 if ((c
= tb
[LEASE_ATTR_MAC
]))
330 if (!ether_aton_r(blobmsg_get_string(c
), &lease
->mac
))
333 if ((c
= tb
[LEASE_ATTR_DUID
])) {
334 size_t duidlen
= (blobmsg_data_len(c
) - 1) / 2;
335 lease
->duid
= malloc(duidlen
);
339 ssize_t len
= odhcpd_unhexlify(lease
->duid
,
340 duidlen
, blobmsg_get_string(c
));
345 lease
->duid_len
= len
;
348 if ((c
= tb
[LEASE_ATTR_HOSTID
])) {
350 lease
->hostid
= strtoul(blobmsg_get_string(c
), NULL
, 16);
355 if ((c
= tb
[LEASE_ATTR_LEASETIME
])) {
356 double time
= parse_leasetime(c
);
360 lease
->dhcpv4_leasetime
= time
;
363 list_add(&lease
->head
, &leases
);
373 int config_parse_interface(void *data
, size_t len
, const char *name
, bool overwrite
)
375 struct blob_attr
*tb
[IFACE_ATTR_MAX
], *c
;
376 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
, data
, len
);
378 if (tb
[IFACE_ATTR_INTERFACE
])
379 name
= blobmsg_get_string(tb
[IFACE_ATTR_INTERFACE
]);
384 struct interface
*iface
= get_interface(name
);
386 iface
= calloc(1, sizeof(*iface
));
390 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
392 set_interface_defaults(iface
);
394 list_add(&iface
->head
, &interfaces
);
398 const char *ifname
= NULL
;
400 if ((c
= tb
[IFACE_ATTR_IFNAME
]))
401 ifname
= blobmsg_get_string(c
);
402 else if ((c
= tb
[IFACE_ATTR_NETWORKID
]))
403 ifname
= blobmsg_get_string(c
);
407 if (overwrite
|| !iface
->ifname
[0])
408 ifname
= ubus_get_ifname(name
);
411 if (!iface
->ifname
[0] && !ifname
)
415 strncpy(iface
->ifname
, ifname
, sizeof(iface
->ifname
) - 1);
417 if ((iface
->ifindex
= if_nametoindex(iface
->ifname
)) <= 0)
422 if ((c
= tb
[IFACE_ATTR_DYNAMICDHCP
]))
423 iface
->no_dynamic_dhcp
= !blobmsg_get_bool(c
);
425 if (overwrite
&& (c
= tb
[IFACE_ATTR_IGNORE
]))
426 iface
->ignore
= blobmsg_get_bool(c
);
428 if ((c
= tb
[IFACE_ATTR_LEASETIME
])) {
429 double time
= parse_leasetime(c
);
433 iface
->dhcpv4_leasetime
= time
;
436 if ((c
= tb
[IFACE_ATTR_START
])) {
437 iface
->dhcpv4_start
.s_addr
= htonl(blobmsg_get_u32(c
));
440 iface
->dhcpv4
= RELAYD_SERVER
;
443 if ((c
= tb
[IFACE_ATTR_LIMIT
]))
444 iface
->dhcpv4_end
.s_addr
= htonl(
445 ntohl(iface
->dhcpv4_start
.s_addr
) + blobmsg_get_u32(c
));
447 if ((c
= tb
[IFACE_ATTR_MASTER
]))
448 iface
->master
= blobmsg_get_bool(c
);
450 if (overwrite
&& (c
= tb
[IFACE_ATTR_UPSTREAM
])) {
451 struct blob_attr
*cur
;
454 blobmsg_for_each_attr(cur
, c
, rem
) {
455 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
458 iface
->upstream
= realloc(iface
->upstream
,
459 iface
->upstream_len
+ blobmsg_data_len(cur
));
460 if (!iface
->upstream
)
463 memcpy(iface
->upstream
+ iface
->upstream_len
, blobmsg_get_string(cur
), blobmsg_data_len(cur
));
464 iface
->upstream_len
+= blobmsg_data_len(cur
);
469 if ((c
= tb
[IFACE_ATTR_RA
])) {
470 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
476 if ((c
= tb
[IFACE_ATTR_DHCPV4
])) {
477 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
478 iface
->dhcpv4
= mode
;
483 if ((c
= tb
[IFACE_ATTR_DHCPV6
])) {
484 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
485 iface
->dhcpv6
= mode
;
490 if ((c
= tb
[IFACE_ATTR_NDP
])) {
491 if ((mode
= parse_mode(blobmsg_get_string(c
))) >= 0)
497 if ((c
= tb
[IFACE_ATTR_ROUTER
])) {
498 struct blob_attr
*cur
;
501 blobmsg_for_each_attr(cur
, c
, rem
) {
502 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
505 struct in_addr addr4
;
506 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
507 iface
->dhcpv4_router
= realloc(iface
->dhcpv4_router
,
508 (++iface
->dhcpv4_router_cnt
) * sizeof(*iface
->dhcpv4_router
));
509 if (!iface
->dhcpv4_router
)
512 iface
->dhcpv4_router
[iface
->dhcpv4_router_cnt
- 1] = addr4
;
518 if ((c
= tb
[IFACE_ATTR_DNS
])) {
519 struct blob_attr
*cur
;
522 iface
->always_rewrite_dns
= true;
523 blobmsg_for_each_attr(cur
, c
, rem
) {
524 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
527 struct in_addr addr4
;
528 struct in6_addr addr6
;
529 if (inet_pton(AF_INET
, blobmsg_get_string(cur
), &addr4
) == 1) {
530 iface
->dhcpv4_dns
= realloc(iface
->dhcpv4_dns
,
531 (++iface
->dhcpv4_dns_cnt
) * sizeof(*iface
->dhcpv4_dns
));
532 if (!iface
->dhcpv4_dns
)
535 iface
->dhcpv4_dns
[iface
->dhcpv4_dns_cnt
- 1] = addr4
;
536 } else if (inet_pton(AF_INET6
, blobmsg_get_string(cur
), &addr6
) == 1) {
537 iface
->dns
= realloc(iface
->dns
,
538 (++iface
->dns_cnt
) * sizeof(*iface
->dns
));
542 iface
->dns
[iface
->dns_cnt
- 1] = addr6
;
548 if ((c
= tb
[IFACE_ATTR_DOMAIN
])) {
549 struct blob_attr
*cur
;
552 blobmsg_for_each_attr(cur
, c
, rem
) {
553 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
|| !blobmsg_check_attr(cur
, false))
557 char *domain
= blobmsg_get_string(cur
);
558 size_t domainlen
= strlen(domain
);
559 if (domainlen
> 0 && domain
[domainlen
- 1] == '.')
560 domain
[domainlen
- 1] = 0;
562 int len
= dn_comp(domain
, buf
, sizeof(buf
), NULL
, NULL
);
566 iface
->search
= realloc(iface
->search
, iface
->search_len
+ len
);
570 memcpy(&iface
->search
[iface
->search_len
], buf
, len
);
571 iface
->search_len
+= len
;
575 if ((c
= tb
[IFACE_ATTR_FILTER_CLASS
])) {
576 iface
->filter_class
= realloc(iface
->filter_class
, blobmsg_data_len(c
) + 1);
577 memcpy(iface
->filter_class
, blobmsg_get_string(c
), blobmsg_data_len(c
) + 1);
580 if ((c
= tb
[IFACE_ATTR_DHCPV6_RAW
])) {
581 iface
->dhcpv6_raw_len
= blobmsg_data_len(c
) / 2;
582 iface
->dhcpv6_raw
= realloc(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
);
583 odhcpd_unhexlify(iface
->dhcpv6_raw
, iface
->dhcpv6_raw_len
, blobmsg_get_string(c
));
586 if ((c
= tb
[IFACE_ATTR_DHCPV6_ASSIGNALL
]))
587 iface
->dhcpv6_assignall
= blobmsg_get_bool(c
);
589 if ((c
= tb
[IFACE_ATTR_RA_DEFAULT
]))
590 iface
->default_router
= blobmsg_get_u32(c
);
592 if ((c
= tb
[IFACE_ATTR_RA_MANAGEMENT
]))
593 iface
->managed
= blobmsg_get_u32(c
);
595 if ((c
= tb
[IFACE_ATTR_RA_OFFLINK
]))
596 iface
->ra_not_onlink
= blobmsg_get_bool(c
);
598 if ((c
= tb
[IFACE_ATTR_RA_ADVROUTER
]))
599 iface
->ra_advrouter
= blobmsg_get_bool(c
);
601 if ((c
= tb
[IFACE_ATTR_RA_MININTERVAL
]))
602 iface
->ra_mininterval
= blobmsg_get_u32(c
);
604 if ((c
= tb
[IFACE_ATTR_RA_MAXINTERVAL
]))
605 iface
->ra_maxinterval
= blobmsg_get_u32(c
);
607 if ((c
= tb
[IFACE_ATTR_RA_LIFETIME
]))
608 iface
->ra_lifetime
= blobmsg_get_u32(c
);
610 if ((c
= tb
[IFACE_ATTR_RA_USELEASETIME
]))
611 iface
->ra_useleasetime
= blobmsg_get_bool(c
);
613 if ((c
= tb
[IFACE_ATTR_RA_PREFERENCE
])) {
614 const char *prio
= blobmsg_get_string(c
);
616 if (!strcmp(prio
, "high"))
617 iface
->route_preference
= 1;
618 else if (!strcmp(prio
, "low"))
619 iface
->route_preference
= -1;
620 else if (!strcmp(prio
, "medium") || !strcmp(prio
, "default"))
621 iface
->route_preference
= 0;
626 if ((c
= tb
[IFACE_ATTR_PD_MANAGER
]))
627 strncpy(iface
->dhcpv6_pd_manager
, blobmsg_get_string(c
),
628 sizeof(iface
->dhcpv6_pd_manager
) - 1);
630 if ((c
= tb
[IFACE_ATTR_PD_CER
]) &&
631 inet_pton(AF_INET6
, blobmsg_get_string(c
), &iface
->dhcpv6_pd_cer
) < 1)
634 if ((c
= tb
[IFACE_ATTR_NDPROXY_ROUTING
]))
635 iface
->learn_routes
= blobmsg_get_bool(c
);
637 if ((c
= tb
[IFACE_ATTR_NDPROXY_SLAVE
]))
638 iface
->external
= blobmsg_get_bool(c
);
643 close_interface(iface
);
647 static int set_interface(struct uci_section
*s
)
649 blob_buf_init(&b
, 0);
650 uci_to_blob(&b
, s
, &interface_attr_list
);
652 return config_parse_interface(blob_data(b
.head
), blob_len(b
.head
), s
->e
.name
, true);
655 void odhcpd_reload(void)
657 struct uci_context
*uci
= uci_alloc_context();
659 while (!list_empty(&leases
))
660 free_lease(list_first_entry(&leases
, struct lease
, head
));
662 struct interface
*master
= NULL
, *i
, *n
;
667 list_for_each_entry(i
, &interfaces
, head
)
670 struct uci_package
*dhcp
= NULL
;
671 if (!uci_load(uci
, "dhcp", &dhcp
)) {
672 struct uci_element
*e
;
673 uci_foreach_element(&dhcp
->sections
, e
) {
674 struct uci_section
*s
= uci_to_section(e
);
675 if (!strcmp(s
->type
, "host"))
677 else if (!strcmp(s
->type
, "odhcpd"))
681 uci_foreach_element(&dhcp
->sections
, e
) {
682 struct uci_section
*s
= uci_to_section(e
);
683 if (!strcmp(s
->type
, "dhcp"))
688 if (config
.dhcp_statefile
) {
689 char *path
= strdup(config
.dhcp_statefile
);
691 mkdir_p(dirname(path
), 0755);
696 ubus_apply_network();
699 bool any_dhcpv6_slave
= false, any_ra_slave
= false, any_ndp_slave
= false;
702 list_for_each_entry(i
, &interfaces
, head
) {
706 if (i
->dhcpv6
== RELAYD_HYBRID
|| i
->dhcpv6
== RELAYD_RELAY
)
707 any_dhcpv6_slave
= true;
709 if (i
->ra
== RELAYD_HYBRID
|| i
->ra
== RELAYD_RELAY
)
712 if (i
->ndp
== RELAYD_HYBRID
|| i
->ndp
== RELAYD_RELAY
)
713 any_ndp_slave
= true;
716 /* Evaluate hybrid mode for master */
717 list_for_each_entry(i
, &interfaces
, head
) {
721 enum odhcpd_mode hybrid_mode
= RELAYD_DISABLED
;
723 if (!ubus_has_prefix(i
->name
, i
->ifname
))
724 hybrid_mode
= RELAYD_RELAY
;
727 if (i
->dhcpv6
== RELAYD_HYBRID
)
728 i
->dhcpv6
= hybrid_mode
;
730 if (i
->dhcpv6
== RELAYD_RELAY
&& !any_dhcpv6_slave
)
731 i
->dhcpv6
= RELAYD_DISABLED
;
733 if (i
->ra
== RELAYD_HYBRID
)
736 if (i
->ra
== RELAYD_RELAY
&& !any_ra_slave
)
737 i
->ra
= RELAYD_DISABLED
;
739 if (i
->ndp
== RELAYD_HYBRID
)
740 i
->ndp
= hybrid_mode
;
742 if (i
->ndp
== RELAYD_RELAY
&& !any_ndp_slave
)
743 i
->ndp
= RELAYD_DISABLED
;
745 if (i
->dhcpv6
== RELAYD_RELAY
|| i
->ra
== RELAYD_RELAY
|| i
->ndp
== RELAYD_RELAY
)
750 list_for_each_entry_safe(i
, n
, &interfaces
, head
) {
752 /* Resolve hybrid mode */
753 if (i
->dhcpv6
== RELAYD_HYBRID
)
754 i
->dhcpv6
= (master
&& master
->dhcpv6
== RELAYD_RELAY
) ?
755 RELAYD_RELAY
: RELAYD_SERVER
;
757 if (i
->ra
== RELAYD_HYBRID
)
758 i
->ra
= (master
&& master
->ra
== RELAYD_RELAY
) ?
759 RELAYD_RELAY
: RELAYD_SERVER
;
761 if (i
->ndp
== RELAYD_HYBRID
)
762 i
->ndp
= (master
&& master
->ndp
== RELAYD_RELAY
) ?
763 RELAYD_RELAY
: RELAYD_DISABLED
;
765 setup_router_interface(i
, !i
->ignore
|| i
->ra
!= RELAYD_DISABLED
);
766 setup_dhcpv6_interface(i
, !i
->ignore
|| i
->dhcpv6
!= RELAYD_DISABLED
);
767 setup_ndp_interface(i
, !i
->ignore
|| i
->ndp
!= RELAYD_DISABLED
);
768 setup_dhcpv4_interface(i
, !i
->ignore
|| i
->dhcpv4
!= RELAYD_DISABLED
);
773 ndp_handle_addr6_dump();
774 uci_unload(uci
, dhcp
);
775 uci_free_context(uci
);
778 static void handle_signal(int signal
)
782 if (signal
== SIGHUP
) {
783 if (write(reload_pipe
[1], b
, sizeof(b
)) < 0) {}
788 static void reload_cb(struct uloop_fd
*u
, _unused
unsigned int events
)
791 if (read(u
->fd
, b
, sizeof(b
)) < 0) {}
796 static struct uloop_fd reload_fd
= { .cb
= reload_cb
};
798 void odhcpd_run(void)
800 if (pipe2(reload_pipe
, O_NONBLOCK
| O_CLOEXEC
) < 0) {}
802 reload_fd
.fd
= reload_pipe
[0];
803 uloop_fd_add(&reload_fd
, ULOOP_READ
);
805 signal(SIGTERM
, handle_signal
);
806 signal(SIGINT
, handle_signal
);
807 signal(SIGHUP
, handle_signal
);
817 while (!list_empty(&interfaces
))
818 close_interface(list_first_entry(&interfaces
, struct interface
, head
));