#include <signal.h>
#include <arpa/inet.h>
#include <unistd.h>
+#include <libgen.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <syslog.h>
#include <uci.h>
#include <uci_blob.h>
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_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_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 },
};
.info = iface_attr_info,
};
-
enum {
LEASE_ATTR_IP,
LEASE_ATTR_MAC,
LEASE_ATTR_DUID,
LEASE_ATTR_HOSTID,
+ 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_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->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)
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;
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_MAINDHCP]))
+ 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)
{
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:
- if (lease) {
- 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;
return -1;
strncpy(iface->name, name, sizeof(iface->name) - 1);
+
+ set_interface_defaults(iface);
+
list_add(&iface->head, &interfaces);
overwrite = true;
}
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_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;
iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
- } else {
+ } else
goto err;
- }
}
}
goto err;
iface->dns[iface->dns_cnt - 1] = addr6;
- } else {
+ } else
goto err;
- }
}
}
if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
iface->managed = blobmsg_get_u32(c);
- else if (overwrite)
- iface->managed = 1;
+
+ 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])) {
+ iface->ra_retranstime = blobmsg_get_u32(c);
+ if (iface->ra_retranstime > 60000)
+ goto err;
+ }
+
+ if ((c = tb[IFACE_ATTR_RA_HOPLIMIT])) {
+ iface->ra_hoplimit = blobmsg_get_u32(c);
+ if (iface->ra_hoplimit > 255)
+ goto err;
+ }
+
+ 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);
if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
iface->learn_routes = blobmsg_get_bool(c);
- else if (overwrite)
- iface->learn_routes = true;
if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
iface->external = blobmsg_get_bool(c);
{
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);
}
-
void odhcpd_reload(void)
{
struct uci_context *uci = uci_alloc_context();
- while (!list_empty(&leases)) {
- struct lease *l = list_first_entry(&leases, struct lease, head);
- list_del(&l->head);
- free(l->duid);
- free(l);
- }
+
+ while (!list_empty(&leases))
+ free_lease(list_first_entry(&leases, struct lease, head));
struct interface *master = NULL, *i, *n;
}
}
+ if (config.dhcp_statefile) {
+ char *path = strdup(config.dhcp_statefile);
+
+ mkdir_p(dirname(path), 0755);
+ free(path);
+ }
#ifdef WITH_UBUS
ubus_apply_network();
bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
- // Test for
+ /* Test for */
list_for_each_entry(i, &interfaces, head) {
if (i->master)
continue;
any_ndp_slave = true;
}
- // Evaluate hybrid mode for master
+ /* Evaluate hybrid mode for master */
list_for_each_entry(i, &interfaces, head) {
if (!i->master)
continue;
list_for_each_entry_safe(i, n, &interfaces, head) {
if (i->inuse) {
- // Resolve hybrid mode
+ /* Resolve hybrid mode */
if (i->dhcpv6 == RELAYD_HYBRID)
i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
RELAYD_RELAY : RELAYD_SERVER;
i->ndp = (master && master->ndp == RELAYD_RELAY) ?
RELAYD_RELAY : RELAYD_DISABLED;
- setup_router_interface(i, true);
- setup_dhcpv6_interface(i, true);
- setup_ndp_interface(i, true);
- setup_dhcpv4_interface(i, true);
- } else {
+ 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);
- }
}
+ ndp_handle_addr6_dump();
uci_unload(uci, dhcp);
uci_free_context(uci);
}
-
static void handle_signal(int signal)
{
char b[1] = {0};
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();
}
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);
projects / project / odhcpd.git / blobdiff