#include <uci.h>
#include <uci_blob.h>
#include <libubox/utils.h>
+#include <libubox/avl.h>
+#include <libubox/avl-cmp.h>
+#include <libubox/list.h>
+#include <libubox/vlist.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);
+
+static int lease_cmp(const void *k1, const void *k2, void *ptr);
+static void lease_update(struct vlist_tree *tree, struct vlist_node *node_new,
+ struct vlist_node *node_old);
+
+struct vlist_tree leases = VLIST_TREE_INIT(leases, lease_cmp, lease_update, true, false);
+AVL_TREE(interfaces, avl_strcmp, false, NULL);
struct config config = {.legacy = false, .main_dhcpv4 = false,
.dhcp_cb = NULL, .dhcp_statefile = NULL,
.log_level = LOG_INFO};
IFACE_ATTR_DHCPV4_FORCERECONF,
IFACE_ATTR_DHCPV6_RAW,
IFACE_ATTR_DHCPV6_ASSIGNALL,
+ IFACE_ATTR_DHCPV6_PD,
+ IFACE_ATTR_DHCPV6_NA,
IFACE_ATTR_RA_DEFAULT,
IFACE_ATTR_RA_MANAGEMENT,
IFACE_ATTR_RA_OFFLINK,
IFACE_ATTR_RA_RETRANSTIME,
IFACE_ATTR_RA_HOPLIMIT,
IFACE_ATTR_RA_MTU,
+ IFACE_ATTR_RA_DNS,
IFACE_ATTR_PD_MANAGER,
IFACE_ATTR_PD_CER,
IFACE_ATTR_NDPROXY_ROUTING,
[IFACE_ATTR_DHCPV4_FORCERECONF] = { .name = "dhcpv4_forcereconf", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
[IFACE_ATTR_DHCPV6_ASSIGNALL] = { .name ="dhcpv6_assignall", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_DHCPV6_PD] = { .name = "dhcpv6_pd", .type = BLOBMSG_TYPE_BOOL },
+ [IFACE_ATTR_DHCPV6_NA] = { .name = "dhcpv6_na", .type = BLOBMSG_TYPE_BOOL },
[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_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_RA_DNS] = { .name = "ra_dns", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
[IFACE_ATTR_PREFIX_FILTER] = { .name = "prefix_filter", .type = BLOBMSG_TYPE_STRING },
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)
-{
- struct interface *c;
- list_for_each_entry(c, &interfaces, head)
- if (!strcmp(c->name, name))
- return c;
- return NULL;
-}
-
static void set_interface_defaults(struct interface *iface)
{
iface->learn_routes = 1;
iface->dhcpv4_leasetime = 43200;
iface->dhcpv6_assignall = true;
+ iface->dhcpv6_pd = true;
+ iface->dhcpv6_na = true;
iface->ra_managed = RA_MANAGED_MFLAG;
iface->ra_maxinterval = 600;
iface->ra_mininterval = iface->ra_maxinterval/3;
iface->ra_lifetime = -1;
+ iface->ra_dns = true;
}
static void clean_interface(struct interface *iface)
static void close_interface(struct interface *iface)
{
- if (iface->head.next)
- list_del(&iface->head);
+ avl_delete(&interfaces, &iface->avl);
router_setup_interface(iface, false);
dhcpv6_setup_interface(iface, false);
return -1;
}
+static void free_lease(struct lease *l)
+{
+ free(l->hostname);
+ free(l);
+}
+
static int set_lease(struct uci_section *s)
{
struct blob_attr *tb[LEASE_ATTR_MAX], *c;
+ struct lease *l;
+ size_t duidlen = 0;
+ uint8_t *duid;
blob_buf_init(&b, 0);
uci_to_blob(&b, s, &lease_attr_list);
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_NAME]))
- hostlen = blobmsg_data_len(c);
+ if ((c = tb[LEASE_ATTR_DUID]))
+ duidlen = (blobmsg_data_len(c) - 1) / 2;
- struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
- if (!lease)
+ l = calloc_a(sizeof(*l), &duid, duidlen);
+ if (!l)
goto err;
- if (hostlen > 1) {
- memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
- if (!odhcpd_valid_hostname(lease->hostname))
- goto err;
- }
-
- if ((c = tb[LEASE_ATTR_IP]))
- if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
- goto err;
-
if ((c = tb[LEASE_ATTR_MAC]))
- if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
+ if (!ether_aton_r(blobmsg_get_string(c), &l->mac))
goto err;
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;
- ssize_t len = odhcpd_unhexlify(lease->duid,
- duidlen, blobmsg_get_string(c));
+ l->duid = duid;
+ len = odhcpd_unhexlify(l->duid, duidlen, blobmsg_get_string(c));
if (len < 0)
goto err;
- lease->duid_len = len;
+ l->duid_len = len;
+ }
+
+ if ((c = tb[LEASE_ATTR_NAME])) {
+ l->hostname = strdup(blobmsg_get_string(c));
+ if (!l->hostname || !odhcpd_valid_hostname(l->hostname))
+ goto err;
}
+ if ((c = tb[LEASE_ATTR_IP]))
+ if (inet_pton(AF_INET, blobmsg_get_string(c), &l->ipaddr) < 0)
+ goto err;
+
if ((c = tb[LEASE_ATTR_HOSTID])) {
errno = 0;
- lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
+ l->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
if (errno)
goto err;
+ } else {
+ uint32_t i4a = ntohl(l->ipaddr) & 0xff;
+ l->hostid = ((i4a / 100) << 8) | (((i4a % 100) / 10) << 4) | (i4a % 10);
}
if ((c = tb[LEASE_ATTR_LEASETIME])) {
if (time < 0)
goto err;
- lease->dhcpv4_leasetime = time;
+ l->leasetime = time;
}
- list_add(&lease->head, &leases);
+ INIT_LIST_HEAD(&l->assignments);
+ vlist_add(&leases, &l->node, l);
return 0;
err:
- if (lease)
- free_lease(lease);
+ if (l)
+ free_lease(l);
return -1;
}
int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
{
+ struct interface *iface;
struct blob_attr *tb[IFACE_ATTR_MAX], *c;
bool get_addrs = false;
if (!name)
return -1;
- struct interface *iface = get_interface(name);
+ iface = avl_find_element(&interfaces, name, iface, avl);
if (!iface) {
- char *iface_name;
+ char *new_name;
- iface = calloc_a(sizeof(*iface), &iface_name, strlen(name) + 1);
+ iface = calloc_a(sizeof(*iface), &new_name, strlen(name) + 1);
if (!iface)
return -1;
- iface->name = strcpy(iface_name, name);
-
+ iface->name = strcpy(new_name, name);
+ iface->avl.key = iface->name;
+ iface->router_event.uloop.fd = -1;
+ iface->dhcpv6_event.uloop.fd = -1;
+ iface->ndp_event.uloop.fd = -1;
+ iface->ndp_ping_fd = -1;
+ iface->dhcpv4_event.uloop.fd = -1;
set_interface_defaults(iface);
- list_add(&iface->head, &interfaces);
+ avl_insert(&interfaces, &iface->avl);
get_addrs = overwrite = true;
}
if ((c = tb[IFACE_ATTR_DHCPV6_ASSIGNALL]))
iface->dhcpv6_assignall = blobmsg_get_bool(c);
+ if ((c = tb[IFACE_ATTR_DHCPV6_PD]))
+ iface->dhcpv6_pd = blobmsg_get_bool(c);
+
+ if ((c = tb[IFACE_ATTR_DHCPV6_NA]))
+ iface->dhcpv6_na = blobmsg_get_bool(c);
+
if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
iface->default_router = blobmsg_get_u32(c);
if ((c = tb[IFACE_ATTR_RA_USELEASETIME]))
iface->ra_useleasetime = blobmsg_get_bool(c);
+ if ((c = tb[IFACE_ATTR_RA_DNS]))
+ iface->ra_dns = blobmsg_get_bool(c);
+
if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
const char *prio = blobmsg_get_string(c);
return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
}
-void odhcpd_reload(void)
+static void lease_delete_assignments(struct lease *l, bool v6)
{
- struct uci_context *uci = uci_alloc_context();
+ struct dhcp_assignment *a, *tmp;
+ unsigned int flag = v6 ? OAF_DHCPV6 : OAF_DHCPV4;
+
+ list_for_each_entry_safe(a, tmp, &l->assignments, lease_list) {
+ if (a->flags & flag)
+ free_assignment(a);
+ }
+}
+
+static void lease_update_assignments(struct lease *l)
+{
+ struct dhcp_assignment *a;
+
+ list_for_each_entry(a, &l->assignments, lease_list) {
+ if (a->hostname)
+ free(a->hostname);
+ a->hostname = NULL;
+
+ if (l->hostname)
+ a->hostname = strdup(l->hostname);
+
+ a->leasetime = l->leasetime;
+ }
+}
+
+static int lease_cmp(const void *k1, const void *k2, _unused void *ptr)
+{
+ const struct lease *l1 = k1, *l2 = k2;
+ int cmp = 0;
+
+ if (l1->duid_len != l2->duid_len)
+ return l1->duid_len - l2->duid_len;
+
+ if (l1->duid_len && l2->duid_len)
+ cmp = memcmp(l1->duid, l2->duid, l1->duid_len);
+
+ if (cmp)
+ return cmp;
+
+ return memcmp(l1->mac.ether_addr_octet, l2->mac.ether_addr_octet,
+ sizeof(l1->mac.ether_addr_octet));
+}
+
+static void lease_change_config(struct lease *l_old, struct lease *l_new)
+{
+ bool update = false;
- while (!list_empty(&leases))
- free_lease(list_first_entry(&leases, struct lease, head));
+ if ((!!l_new->hostname != !!l_old->hostname) ||
+ (l_new->hostname && strcmp(l_new->hostname, l_old->hostname))) {
+ free(l_old->hostname);
+ l_old->hostname = NULL;
- struct interface *master = NULL, *i, *n;
+ if (l_new->hostname)
+ l_old->hostname = strdup(l_new->hostname);
+
+ update = true;
+ }
+
+ if (l_old->leasetime != l_new->leasetime) {
+ l_old->leasetime = l_new->leasetime;
+ update = true;
+ }
+
+ if (l_old->ipaddr != l_new->ipaddr) {
+ l_old->ipaddr = l_new->ipaddr;
+ lease_delete_assignments(l_old, false);
+ }
+
+ if (l_old->hostid != l_new->hostid) {
+ l_old->hostid = l_new->hostid;
+ lease_delete_assignments(l_old, true);
+ }
+
+ if (update)
+ lease_update_assignments(l_old);
+
+ free_lease(l_new);
+}
+
+static void lease_delete(struct lease *l)
+{
+ struct dhcp_assignment *a;
+
+ list_for_each_entry(a, &l->assignments, lease_list)
+ free_assignment(a);
+
+ free_lease(l);
+}
+
+static void lease_update(_unused struct vlist_tree *tree, struct vlist_node *node_new,
+ struct vlist_node *node_old)
+{
+ struct lease *lease_new = container_of(node_new, struct lease, node);
+ struct lease *lease_old = container_of(node_old, struct lease, node);
+
+ if (node_old && node_new)
+ lease_change_config(lease_old, lease_new);
+ else if (node_old)
+ lease_delete(lease_old);
+}
+
+struct lease *config_find_lease_by_duid(const uint8_t *duid, const uint16_t len)
+{
+ struct lease *l;
+
+ vlist_for_each_element(&leases, l, node) {
+ if (l->duid_len == len && !memcmp(l->duid, duid, len))
+ return l;
+ }
+
+ return NULL;
+}
+
+struct lease *config_find_lease_by_mac(const uint8_t *mac)
+{
+ struct lease *l;
+
+ vlist_for_each_element(&leases, l, node) {
+ if (!memcmp(l->mac.ether_addr_octet, mac,
+ sizeof(l->mac.ether_addr_octet)))
+ return l;
+ }
+
+ return NULL;
+}
+
+struct lease *config_find_lease_by_hostid(const uint32_t hostid)
+{
+ struct lease *l;
+
+ vlist_for_each_element(&leases, l, node) {
+ if (l->hostid == hostid)
+ return l;
+ }
+
+ return NULL;
+}
+
+struct lease *config_find_lease_by_ipaddr(const uint32_t ipaddr)
+{
+ struct lease *l;
+
+ vlist_for_each_element(&leases, l, node) {
+ if (l->ipaddr == ipaddr)
+ return l;
+ }
+
+ return NULL;
+}
+
+void odhcpd_reload(void)
+{
+ struct uci_context *uci = uci_alloc_context();
+ struct interface *master = NULL, *i, *tmp;
if (!uci)
return;
- list_for_each_entry(i, &interfaces, head)
+ vlist_update(&leases);
+ avl_for_each_element(&interfaces, i, avl)
clean_interface(i);
struct uci_package *dhcp = NULL;
free(path);
}
+ vlist_flush(&leases);
+
#ifdef WITH_UBUS
ubus_apply_network();
#endif
bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
/* Test for */
- list_for_each_entry(i, &interfaces, head) {
+ avl_for_each_element(&interfaces, i, avl) {
if (i->master)
continue;
}
/* Evaluate hybrid mode for master */
- list_for_each_entry(i, &interfaces, head) {
+ avl_for_each_element(&interfaces, i, avl) {
if (!i->master)
continue;
}
- list_for_each_entry_safe(i, n, &interfaces, head) {
+ avl_for_each_element_safe(&interfaces, i, avl, tmp) {
if (i->inuse) {
/* Resolve hybrid mode */
if (i->dhcpv6 == MODE_HYBRID)
odhcpd_reload();
uloop_run();
-
- while (!list_empty(&interfaces))
- close_interface(list_first_entry(&interfaces, struct interface, head));
}
-
projects / project / odhcpd.git / blobdiff