+#include <fcntl.h>
#include <resolv.h>
#include <signal.h>
#include <arpa/inet.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <net/if.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <syslog.h>
#include <uci.h>
#include <uci_blob.h>
+#include <libubox/utils.h>
#include "odhcpd.h"
static struct blob_buf b;
+static int reload_pipe[2];
struct list_head leases = LIST_HEAD_INIT(leases);
struct list_head interfaces = LIST_HEAD_INIT(interfaces);
-struct config config = {false, NULL, NULL};
+struct config config = {.legacy = false, .main_dhcpv4 = false,
+ .dhcp_cb = NULL, .dhcp_statefile = NULL,
+ .log_level = LOG_INFO};
enum {
IFACE_ATTR_INTERFACE,
IFACE_ATTR_DHCPV4,
IFACE_ATTR_DHCPV6,
IFACE_ATTR_NDP,
+ IFACE_ATTR_ROUTER,
IFACE_ATTR_DNS,
IFACE_ATTR_DOMAIN,
- IFACE_ATTR_ULA_COMPAT,
+ IFACE_ATTR_FILTER_CLASS,
+ IFACE_ATTR_DHCPV6_RAW,
IFACE_ATTR_RA_DEFAULT,
IFACE_ATTR_RA_MANAGEMENT,
IFACE_ATTR_RA_OFFLINK,
IFACE_ATTR_RA_PREFERENCE,
+ IFACE_ATTR_RA_ADVROUTER,
+ IFACE_ATTR_RA_MININTERVAL,
+ IFACE_ATTR_RA_MAXINTERVAL,
+ IFACE_ATTR_RA_LIFETIME,
+ IFACE_ATTR_RA_USELEASETIME,
+ IFACE_ATTR_RA_REACHABLETIME,
+ IFACE_ATTR_RA_RETRANSTIME,
+ IFACE_ATTR_RA_HOPLIMIT,
+ IFACE_ATTR_RA_MTU,
+ IFACE_ATTR_PD_MANAGER,
+ IFACE_ATTR_PD_CER,
IFACE_ATTR_NDPROXY_ROUTING,
IFACE_ATTR_NDPROXY_SLAVE,
- IFACE_ATTR_NDPROXY_STATIC,
IFACE_ATTR_MAX
};
[IFACE_ATTR_DHCPV4] = { .name = "dhcpv4", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_DHCPV6] = { .name = "dhcpv6", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
+ [IFACE_ATTR_ROUTER] = { .name = "router", .type = BLOBMSG_TYPE_ARRAY },
[IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
[IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
- [IFACE_ATTR_ULA_COMPAT] = { .name = "ula_compat", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_FILTER_CLASS] = { .name = "filter_class", .type = BLOBMSG_TYPE_STRING },
+ [IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
+ [IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
+ [IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
[IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
[IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
+ [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_RA_MININTERVAL] = { .name = "ra_mininterval", .type = BLOBMSG_TYPE_INT32 },
+ [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
+ [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
+ [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_RA_REACHABLETIME] = { .name = "ra_reachabletime", .type = BLOBMSG_TYPE_INT32 },
+ [IFACE_ATTR_RA_RETRANSTIME] = { .name = "ra_retranstime", .type = BLOBMSG_TYPE_INT32 },
+ [IFACE_ATTR_RA_HOPLIMIT] = { .name = "ra_hoplimit", .type = BLOBMSG_TYPE_INT32 },
+ [IFACE_ATTR_RA_MTU] = { .name = "ra_mtu", .type = BLOBMSG_TYPE_INT32 },
[IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
- [IFACE_ATTR_NDPROXY_STATIC] = { .name = "ndproxy_static", .type = BLOBMSG_TYPE_ARRAY },
};
static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
[IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING },
- [IFACE_ATTR_NDPROXY_STATIC] = { .type = BLOBMSG_TYPE_STRING },
};
const struct uci_blob_param_list interface_attr_list = {
.info = iface_attr_info,
};
-
enum {
LEASE_ATTR_IP,
LEASE_ATTR_MAC,
LEASE_ATTR_DUID,
LEASE_ATTR_HOSTID,
- LEASE_ATTR_HOSTNAME,
+ LEASE_ATTR_LEASETIME,
+ LEASE_ATTR_NAME,
LEASE_ATTR_MAX
};
-
static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
[LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
[LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
[LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
[LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
- [LEASE_ATTR_HOSTNAME] = { .name = "hostname", .type = BLOBMSG_TYPE_STRING },
+ [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
+ [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
};
-
const struct uci_blob_param_list lease_attr_list = {
.n_params = LEASE_ATTR_MAX,
.params = lease_attrs,
};
-
enum {
ODHCPD_ATTR_LEGACY,
+ ODHCPD_ATTR_MAINDHCP,
ODHCPD_ATTR_LEASEFILE,
ODHCPD_ATTR_LEASETRIGGER,
+ ODHCPD_ATTR_LOGLEVEL,
ODHCPD_ATTR_MAX
};
-
static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
[ODHCPD_ATTR_LEGACY] = { .name = "legacy", .type = BLOBMSG_TYPE_BOOL },
+ [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
[ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
[ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
+ [ODHCPD_ATTR_LOGLEVEL] = { .name = "loglevel", .type = BLOBMSG_TYPE_INT32 },
};
-
const struct uci_blob_param_list odhcpd_attr_list = {
.n_params = ODHCPD_ATTR_MAX,
.params = odhcpd_attrs,
};
+static int mkdir_p(char *dir, mode_t mask)
+{
+ char *l = strrchr(dir, '/');
+ int ret;
+
+ if (!l)
+ return 0;
+
+ *l = '\0';
+
+ if (mkdir_p(dir, mask))
+ return -1;
+
+ *l = '/';
+
+ ret = mkdir(dir, mask);
+ if (ret && errno == EEXIST)
+ return 0;
+
+ if (ret)
+ syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno));
+
+ return ret;
+}
+
+static void free_lease(struct lease *l)
+{
+ if (l->head.next)
+ list_del(&l->head);
+
+ free(l->duid);
+ free(l);
+}
static struct interface* get_interface(const char *name)
{
return NULL;
}
+static void set_interface_defaults(struct interface *iface)
+{
+ iface->managed = 1;
+ iface->learn_routes = 1;
+ iface->dhcpv4_leasetime = 43200;
+ iface->ra_maxinterval = 600;
+ iface->ra_mininterval = iface->ra_maxinterval/3;
+ iface->ra_lifetime = -1;
+}
static void clean_interface(struct interface *iface)
{
free(iface->dns);
free(iface->search);
free(iface->upstream);
- free(iface->static_ndp);
+ free(iface->dhcpv4_router);
free(iface->dhcpv4_dns);
+ free(iface->dhcpv6_raw);
+ free(iface->filter_class);
memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
+ set_interface_defaults(iface);
}
-
static void close_interface(struct interface *iface)
{
if (iface->head.next)
setup_dhcpv4_interface(iface, false);
clean_interface(iface);
+ free(iface->ia_addr);
+ free(iface->ifname);
free(iface);
}
-
static int parse_mode(const char *mode)
{
- if (!strcmp(mode, "disabled")) {
+ if (!strcmp(mode, "disabled"))
return RELAYD_DISABLED;
- } else if (!strcmp(mode, "server")) {
+ else if (!strcmp(mode, "server"))
return RELAYD_SERVER;
- } else if (!strcmp(mode, "relay")) {
+ else if (!strcmp(mode, "relay"))
return RELAYD_RELAY;
- } else if (!strcmp(mode, "hybrid")) {
+ else if (!strcmp(mode, "hybrid"))
return RELAYD_HYBRID;
- } else {
+ else
return -1;
- }
}
-
static void set_config(struct uci_section *s)
{
struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
blob_buf_init(&b, 0);
- uci_to_blob(&b, s, &lease_attr_list);
- blobmsg_parse(lease_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
+ uci_to_blob(&b, s, &odhcpd_attr_list);
+ blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
if ((c = tb[ODHCPD_ATTR_LEGACY]))
config.legacy = blobmsg_get_bool(c);
+ if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
+ config.main_dhcpv4 = blobmsg_get_bool(c);
+
if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
free(config.dhcp_statefile);
config.dhcp_statefile = strdup(blobmsg_get_string(c));
free(config.dhcp_cb);
config.dhcp_cb = strdup(blobmsg_get_string(c));
}
+
+ if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) {
+ int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK);
+
+ if (config.log_level != log_level) {
+ config.log_level = log_level;
+ setlogmask(LOG_UPTO(config.log_level));
+ }
+ }
}
+static double parse_leasetime(struct blob_attr *c) {
+ char *val = blobmsg_get_string(c), *endptr = NULL;
+ double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
+
+ if (time && endptr && endptr[0]) {
+ if (endptr[0] == 's')
+ time *= 1;
+ else if (endptr[0] == 'm')
+ time *= 60;
+ else if (endptr[0] == 'h')
+ time *= 3600;
+ else if (endptr[0] == 'd')
+ time *= 24 * 3600;
+ else if (endptr[0] == 'w')
+ time *= 7 * 24 * 3600;
+ else
+ goto err;
+ }
+
+ if (time < 60)
+ time = 60;
+
+ return time;
+
+err:
+ return -1;
+}
static int set_lease(struct uci_section *s)
{
blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
size_t hostlen = 1;
- if ((c = tb[LEASE_ATTR_HOSTNAME]))
+ if ((c = tb[LEASE_ATTR_NAME]))
hostlen = blobmsg_data_len(c);
struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
+ if (!lease)
+ goto err;
if (hostlen > 1)
memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
if ((c = tb[LEASE_ATTR_DUID])) {
size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
lease->duid = malloc(duidlen);
+ if (!lease->duid)
+ goto err;
+
ssize_t len = odhcpd_unhexlify(lease->duid,
duidlen, blobmsg_get_string(c));
lease->duid_len = len;
}
- if ((c = tb[LEASE_ATTR_HOSTID]))
- if (odhcpd_unhexlify((uint8_t*)&lease->hostid, sizeof(lease->hostid),
- blobmsg_get_string(c)) < 0)
+ if ((c = tb[LEASE_ATTR_HOSTID])) {
+ errno = 0;
+ lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
+ if (errno)
+ goto err;
+ }
+
+ if ((c = tb[LEASE_ATTR_LEASETIME])) {
+ double time = parse_leasetime(c);
+ if (time < 0)
goto err;
+ lease->dhcpv4_leasetime = time;
+ }
+
list_add(&lease->head, &leases);
return 0;
err:
- free(lease->duid);
- free(lease);
+ if (lease)
+ free_lease(lease);
+
return -1;
}
-
int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
{
struct blob_attr *tb[IFACE_ATTR_MAX], *c;
struct interface *iface = get_interface(name);
if (!iface) {
- iface = calloc(1, sizeof(*iface));
- strncpy(iface->name, name, sizeof(iface->name) - 1);
+ char *iface_name;
+
+ iface = calloc_a(sizeof(*iface), &iface_name, strlen(name) + 1);
+ if (!iface)
+ return -1;
+
+ iface->name = strcpy(iface_name, name);
+
+ set_interface_defaults(iface);
+
list_add(&iface->head, &interfaces);
- } else if (overwrite) {
- clean_interface(iface);
+ overwrite = true;
}
const char *ifname = NULL;
+ if (overwrite) {
+ if ((c = tb[IFACE_ATTR_IFNAME]))
+ ifname = blobmsg_get_string(c);
+ else if ((c = tb[IFACE_ATTR_NETWORKID]))
+ ifname = blobmsg_get_string(c);
+ }
+
#ifdef WITH_UBUS
- if (overwrite)
+ if (overwrite || !iface->ifname)
ifname = ubus_get_ifname(name);
#endif
- if ((c = tb[IFACE_ATTR_IFNAME]))
- ifname = blobmsg_get_string(c);
- else if ((c = tb[IFACE_ATTR_NETWORKID]))
- ifname = blobmsg_get_string(c);
- if (!ifname)
- return -1;
+ if (!iface->ifname && !ifname)
+ goto err;
- strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
- iface->inuse = true;
+ if (ifname) {
+ free(iface->ifname);
+ iface->ifname = strdup(ifname);
- if (overwrite)
- clean_interface(iface);
+ if (!iface->ifname)
+ goto err;
+ }
+
+ if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
+ goto err;
+
+ iface->inuse = true;
if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
- if ((c = tb[IFACE_ATTR_IGNORE]))
+ if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
iface->ignore = blobmsg_get_bool(c);
if ((c = tb[IFACE_ATTR_LEASETIME])) {
- char *val = blobmsg_get_string(c), *endptr;
- double time = strtod(val, &endptr);
- if (time && endptr[0]) {
- if (endptr[0] == 's')
- time *= 1;
- else if (endptr[0] == 'm')
- time *= 60;
- else if (endptr[0] == 'h')
- time *= 3600;
- else if (endptr[0] == 'd')
- time *= 24 * 3600;
- else if (endptr[0] == 'w')
- time *= 7 * 24 * 3600;
- else
- goto err;
- }
+ double time = parse_leasetime(c);
+ if (time < 0)
+ goto err;
- if (time >= 60)
- iface->dhcpv4_leasetime = time;
+ iface->dhcpv4_leasetime = time;
}
if ((c = tb[IFACE_ATTR_START])) {
iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
- if (config.legacy)
+ if (config.main_dhcpv4 && config.legacy)
iface->dhcpv4 = RELAYD_SERVER;
}
if ((c = tb[IFACE_ATTR_MASTER]))
iface->master = blobmsg_get_bool(c);
- if ((c = tb[IFACE_ATTR_UPSTREAM])) {
+ if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
struct blob_attr *cur;
unsigned rem;
blobmsg_for_each_attr(cur, c, rem) {
- if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
continue;
iface->upstream = realloc(iface->upstream,
iface->upstream_len + blobmsg_data_len(cur));
+ if (!iface->upstream)
+ goto err;
+
memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
iface->upstream_len += blobmsg_data_len(cur);
}
}
if ((c = tb[IFACE_ATTR_DHCPV4])) {
- if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
- iface->dhcpv4 = mode;
+ if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
+ if (config.main_dhcpv4)
+ iface->dhcpv4 = mode;
+ }
else
goto err;
}
goto err;
}
+ if ((c = tb[IFACE_ATTR_ROUTER])) {
+ struct blob_attr *cur;
+ unsigned rem;
+
+ blobmsg_for_each_attr(cur, c, rem) {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
+ continue;
+
+ struct in_addr addr4;
+ if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
+ iface->dhcpv4_router = realloc(iface->dhcpv4_router,
+ (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
+ if (!iface->dhcpv4_router)
+ goto err;
+
+ iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
+ } else
+ goto err;
+ }
+ }
+
if ((c = tb[IFACE_ATTR_DNS])) {
struct blob_attr *cur;
unsigned rem;
iface->always_rewrite_dns = true;
blobmsg_for_each_attr(cur, c, rem) {
- if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
continue;
struct in_addr addr4;
if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
(++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
+ if (!iface->dhcpv4_dns)
+ goto err;
+
iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
} else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
iface->dns = realloc(iface->dns,
(++iface->dns_cnt) * sizeof(*iface->dns));
+ if (!iface->dns)
+ goto err;
+
iface->dns[iface->dns_cnt - 1] = addr6;
- } else {
+ } else
goto err;
- }
}
}
unsigned rem;
blobmsg_for_each_attr(cur, c, rem) {
- if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
continue;
uint8_t buf[256];
- int len = dn_comp(blobmsg_get_string(cur), buf, sizeof(buf), NULL, NULL);
+ char *domain = blobmsg_get_string(cur);
+ size_t domainlen = strlen(domain);
+ if (domainlen > 0 && domain[domainlen - 1] == '.')
+ domain[domainlen - 1] = 0;
+
+ int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
if (len <= 0)
goto err;
iface->search = realloc(iface->search, iface->search_len + len);
+ if (!iface->search)
+ goto err;
+
memcpy(&iface->search[iface->search_len], buf, len);
iface->search_len += len;
}
}
- if ((c = tb[IFACE_ATTR_ULA_COMPAT]))
- iface->deprecate_ula_if_public_avail = blobmsg_get_bool(c);
+ if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
+ iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
+ memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
+ }
+
+ if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
+ iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
+ iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
+ odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
+ }
if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
iface->default_router = blobmsg_get_u32(c);
if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
iface->managed = blobmsg_get_u32(c);
+ if ((c = tb[IFACE_ATTR_RA_REACHABLETIME])) {
+ uint32_t ra_reachabletime = blobmsg_get_u32(c);
+ if (ra_reachabletime > 3600000)
+ goto err;
+
+ iface->ra_reachabletime = ra_reachabletime;
+ }
+
+ if ((c = tb[IFACE_ATTR_RA_RETRANSTIME])) {
+ uint32_t ra_retranstime = blobmsg_get_u32(c);
+ if (ra_retranstime > 60000)
+ goto err;
+
+ iface->ra_retranstime = ra_retranstime;
+ }
+
+ if ((c = tb[IFACE_ATTR_RA_HOPLIMIT])) {
+ uint32_t ra_hoplimit = blobmsg_get_u32(c);
+ if (ra_hoplimit > 255)
+ goto err;
+
+ iface->ra_hoplimit = ra_hoplimit;
+ }
+
+ if ((c = tb[IFACE_ATTR_RA_MTU])) {
+ uint32_t ra_mtu = blobmsg_get_u32(c);
+ if (ra_mtu < 1280 || ra_mtu > 65535)
+ goto err;
+
+ iface->ra_mtu = ra_mtu;
+ }
+
if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
iface->ra_not_onlink = blobmsg_get_bool(c);
+ if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
+ iface->ra_advrouter = blobmsg_get_bool(c);
+
+ if ((c = tb[IFACE_ATTR_RA_MININTERVAL]))
+ iface->ra_mininterval = blobmsg_get_u32(c);
+
+ if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
+ iface->ra_maxinterval = blobmsg_get_u32(c);
+
+ if ((c = tb[IFACE_ATTR_RA_LIFETIME]))
+ iface->ra_lifetime = blobmsg_get_u32(c);
+
+ if ((c = tb[IFACE_ATTR_RA_USELEASETIME]))
+ iface->ra_useleasetime = blobmsg_get_bool(c);
+
if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
const char *prio = blobmsg_get_string(c);
goto err;
}
+ if ((c = tb[IFACE_ATTR_PD_MANAGER]))
+ strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
+ sizeof(iface->dhcpv6_pd_manager) - 1);
+
+ if ((c = tb[IFACE_ATTR_PD_CER]) &&
+ inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
+ goto err;
+
if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
iface->learn_routes = blobmsg_get_bool(c);
if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
iface->external = blobmsg_get_bool(c);
- if ((c = tb[IFACE_ATTR_NDPROXY_STATIC])) {
- struct blob_attr *cur;
- unsigned rem;
-
- blobmsg_for_each_attr(cur, c, rem) {
- if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
- continue;
-
- int len = blobmsg_data_len(cur);
- iface->static_ndp = realloc(iface->static_ndp, iface->static_ndp_len + len);
- memcpy(&iface->static_ndp[iface->static_ndp_len], blobmsg_get_string(cur), len);
- iface->static_ndp_len += len;
- }
- }
-
- iface->ignore = (iface->ifindex = if_nametoindex(iface->ifname)) < 0;
return 0;
err:
{
blob_buf_init(&b, 0);
uci_to_blob(&b, s, &interface_attr_list);
- return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
-}
-
-static volatile int do_reload = false;
-static void set_stop(int signal)
-{
- uloop_end();
- do_reload = (signal == SIGHUP);
+ return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
}
-void odhcpd_run(void)
+void odhcpd_reload(void)
{
struct uci_context *uci = uci_alloc_context();
- signal(SIGTERM, set_stop);
- signal(SIGHUP, set_stop);
- signal(SIGINT, set_stop);
-#ifdef WITH_UBUS
- init_ubus();
-#endif
+ while (!list_empty(&leases))
+ free_lease(list_first_entry(&leases, struct lease, head));
+
+ struct interface *master = NULL, *i, *n;
- do {
- do_reload = uloop_cancelled = false;
+ if (!uci)
+ return;
- struct lease *l;
- list_for_each_entry(l, &leases, head) {
- list_del(&l->head);
- free(l->duid);
- free(l);
+ list_for_each_entry(i, &interfaces, head)
+ clean_interface(i);
+
+ struct uci_package *dhcp = NULL;
+ if (!uci_load(uci, "dhcp", &dhcp)) {
+ struct uci_element *e;
+ uci_foreach_element(&dhcp->sections, e) {
+ struct uci_section *s = uci_to_section(e);
+ if (!strcmp(s->type, "host"))
+ set_lease(s);
+ else if (!strcmp(s->type, "odhcpd"))
+ set_config(s);
}
- struct uci_package *dhcp = NULL;
- if (!uci_load(uci, "dhcp", &dhcp)) {
- struct uci_element *e;
- uci_foreach_element(&dhcp->sections, e) {
- struct uci_section *s = uci_to_section(e);
- if (!strcmp(s->type, "lease"))
- set_lease(s);
- else if (!strcmp(s->type, "odhcpd"))
- set_config(s);
- }
-
- uci_foreach_element(&dhcp->sections, e) {
- struct uci_section *s = uci_to_section(e);
- if (!strcmp(s->type, "dhcp"))
- set_interface(s);
- }
+ uci_foreach_element(&dhcp->sections, e) {
+ struct uci_section *s = uci_to_section(e);
+ if (!strcmp(s->type, "dhcp"))
+ set_interface(s);
}
+ }
+
+ if (config.dhcp_statefile) {
+ char *path = strdup(config.dhcp_statefile);
+
+ mkdir_p(dirname(path), 0755);
+ free(path);
+ }
#ifdef WITH_UBUS
- ubus_apply_network();
+ ubus_apply_network();
#endif
- // Evaluate hybrid mode for master
- struct interface *master = NULL, *i, *n;
- list_for_each_entry(i, &interfaces, head) {
- if (!i->master)
- continue;
+ bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
+
+ /* Test for */
+ list_for_each_entry(i, &interfaces, head) {
+ if (i->master)
+ continue;
+
+ if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
+ any_dhcpv6_slave = true;
- enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
+ if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
+ any_ra_slave = true;
+
+ if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
+ any_ndp_slave = true;
+ }
+
+ /* Evaluate hybrid mode for master */
+ list_for_each_entry(i, &interfaces, head) {
+ if (!i->master)
+ continue;
+
+ enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
#ifdef WITH_UBUS
- if (ubus_has_prefix(i->name, i->ifname))
- hybrid_mode = RELAYD_RELAY;
+ if (!ubus_has_prefix(i->name, i->ifname))
+ hybrid_mode = RELAYD_RELAY;
#endif
+ if (i->dhcpv6 == RELAYD_HYBRID)
+ i->dhcpv6 = hybrid_mode;
+
+ if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
+ i->dhcpv6 = RELAYD_DISABLED;
+
+ if (i->ra == RELAYD_HYBRID)
+ i->ra = hybrid_mode;
+
+ if (i->ra == RELAYD_RELAY && !any_ra_slave)
+ i->ra = RELAYD_DISABLED;
+
+ if (i->ndp == RELAYD_HYBRID)
+ i->ndp = hybrid_mode;
+
+ if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
+ i->ndp = RELAYD_DISABLED;
+
+ if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
+ master = i;
+ }
+
+
+ list_for_each_entry_safe(i, n, &interfaces, head) {
+ if (i->inuse) {
+ /* Resolve hybrid mode */
if (i->dhcpv6 == RELAYD_HYBRID)
- i->dhcpv6 = hybrid_mode;
+ i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
+ RELAYD_RELAY : RELAYD_SERVER;
if (i->ra == RELAYD_HYBRID)
- i->ra = hybrid_mode;
+ i->ra = (master && master->ra == RELAYD_RELAY) ?
+ RELAYD_RELAY : RELAYD_SERVER;
if (i->ndp == RELAYD_HYBRID)
- i->ndp = hybrid_mode;
+ i->ndp = (master && master->ndp == RELAYD_RELAY) ?
+ RELAYD_RELAY : RELAYD_DISABLED;
+
+ setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
+ setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
+ setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
+ setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
+ } else
+ close_interface(i);
+ }
- if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
- master = i;
- }
+ ndp_handle_addr6_dump();
+ uci_unload(uci, dhcp);
+ uci_free_context(uci);
+}
+static void handle_signal(int signal)
+{
+ char b[1] = {0};
- list_for_each_entry_safe(i, n, &interfaces, head) {
- if (i->inuse) {
- // Resolve hybrid mode
- if (i->dhcpv6 == RELAYD_HYBRID)
- i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
- RELAYD_RELAY : RELAYD_SERVER;
-
- if (i->ra == RELAYD_HYBRID)
- i->ra = (master && master->ra == RELAYD_RELAY) ?
- RELAYD_RELAY : RELAYD_SERVER;
-
- if (i->ndp == RELAYD_HYBRID)
- i->ndp = (master && master->ndp == RELAYD_RELAY) ?
- RELAYD_RELAY : RELAYD_SERVER;
-
- setup_router_interface(i, true);
- setup_dhcpv6_interface(i, true);
- setup_ndp_interface(i, true);
- setup_dhcpv4_interface(i, true);
- } else {
- close_interface(i);
- }
- }
+ if (signal == SIGHUP) {
+ if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
+ } else
+ uloop_end();
+}
+
+static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
+{
+ char b[512];
+ if (read(u->fd, b, sizeof(b)) < 0) {}
+
+ odhcpd_reload();
+}
+
+static struct uloop_fd reload_fd = { .cb = reload_cb };
+
+void odhcpd_run(void)
+{
+ if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
+
+ reload_fd.fd = reload_pipe[0];
+ uloop_fd_add(&reload_fd, ULOOP_READ);
+
+ signal(SIGTERM, handle_signal);
+ signal(SIGINT, handle_signal);
+ signal(SIGHUP, handle_signal);
+
+#ifdef WITH_UBUS
+ while (init_ubus())
+ sleep(1);
+#endif
- uloop_run();
+ odhcpd_reload();
+ uloop_run();
- if (dhcp)
- uci_unload(uci, dhcp);
- } while (do_reload);
+ while (!list_empty(&interfaces))
+ close_interface(list_first_entry(&interfaces, struct interface, head));
}
projects / project / odhcpd.git / blobdiff