#include <sys/timerfd.h>
-static void update(struct interface *iface);
static void reconf_timer(struct uloop_timeout *event);
static struct uloop_timeout reconf_event = {.cb = reconf_timer};
static uint32_t serial = 0;
free(c->managed);
free(c->hostname);
- free(c->classes);
free(c);
}
}
}
- if (iface->dhcpv6 == RELAYD_SERVER) {
+ if (enable && iface->dhcpv6 == RELAYD_SERVER) {
if (!iface->ia_assignments.next)
INIT_LIST_HEAD(&iface->ia_assignments);
list_add(&border->head, &iface->ia_assignments);
}
- update(iface);
-
// Parse static entries
struct lease *lease;
list_for_each_entry(lease, &leases, head) {
// Construct entry
- struct dhcpv6_assignment *a = calloc(1, sizeof(*a) + lease->duid_len);
+ size_t duid_len = lease->duid_len ? lease->duid_len : 14;
+ struct dhcpv6_assignment *a = calloc(1, sizeof(*a) + duid_len);
if (!a) {
syslog(LOG_ERR, "Calloc failed for static lease assignment on interface %s",
iface->ifname);
return -1;
}
- a->clid_len = lease->duid_len;
+ a->clid_len = duid_len;
a->length = 128;
if (lease->hostid) {
a->assigned = lease->hostid;
a->assigned = ((i4a / 100) << 8) | (((i4a % 100) / 10) << 4) | (i4a % 10);
}
odhcpd_urandom(a->key, sizeof(a->key));
- memcpy(a->clid_data, lease->duid, a->clid_len);
+ memcpy(a->clid_data, lease->duid, lease->duid_len);
memcpy(a->mac, lease->mac.ether_addr_octet, sizeof(a->mac));
// Assign to all interfaces
a->hostname = strdup(lease->hostname);
}
} else {
- free(a->classes);
free(a->hostname);
free(a);
}
return;
lockf(fd, F_LOCK, 0);
- ftruncate(fd, 0);
+ if (ftruncate(fd, 0) < 0) {}
FILE *fp = fdopen(fd, "w");
if (!fp) {
for (size_t i = 0; i < addrlen; ++i) {
if (addrs[i].prefix > 96 || c->valid_until <= now ||
- (iface->managed < RELAYD_MANAGED_NO_AFLAG && i != m))
+ (iface->managed < RELAYD_MANAGED_NO_AFLAG && i != m &&
+ addrs[i].prefix == 64))
continue;
addr = addrs[i].addr;
struct in6_addr prefix = addrs[i].addr;
prefix.s6_addr32[1] |= htonl(a->assigned);
odhcpd_setup_route(&prefix, (a->managed_size) ? addrs[i].prefix : a->length,
- iface, &a->peer.sin6_addr, add);
+ iface, &a->peer.sin6_addr, 1024, add);
}
}
return false;
}
-
-static int prefixcmp(const void *va, const void *vb)
+void dhcpv6_ia_preupdate(struct interface *iface)
{
- const struct odhcpd_ipaddr *a = va, *b = vb;
- uint32_t a_pref = ((a->addr.s6_addr[0] & 0xfe) != 0xfc) ? a->preferred : 1;
- uint32_t b_pref = ((b->addr.s6_addr[0] & 0xfe) != 0xfc) ? b->preferred : 1;
- return (a_pref < b_pref) ? 1 : (a_pref > b_pref) ? -1 : 0;
-}
+ if (iface->dhcpv6 != RELAYD_SERVER)
+ return;
+ struct dhcpv6_assignment *c, *border = list_last_entry(
+ &iface->ia_assignments, struct dhcpv6_assignment, head);
+ list_for_each_entry(c, &iface->ia_assignments, head)
+ if (c != border && !iface->managed)
+ apply_lease(iface, c, false);
+}
-static void update(struct interface *iface)
+void dhcpv6_ia_postupdate(struct interface *iface, time_t now)
{
- struct odhcpd_ipaddr addr[8];
- memset(addr, 0, sizeof(addr));
- int len = odhcpd_get_interface_addresses(iface->ifindex, addr, 8);
-
- if (len < 0)
+ if (iface->dhcpv6 != RELAYD_SERVER)
return;
- qsort(addr, len, sizeof(*addr), prefixcmp);
-
- time_t now = odhcpd_time();
int minprefix = -1;
-
- for (int i = 0; i < len; ++i) {
- if (addr[i].preferred > 0 && addr[i].prefix > minprefix)
- minprefix = addr[i].prefix;
-
- addr[i].addr.s6_addr32[3] = 0;
-
- if (addr[i].preferred < UINT32_MAX - now)
- addr[i].preferred += now;
-
- if (addr[i].valid < UINT32_MAX - now)
- addr[i].valid += now;
- }
-
- struct dhcpv6_assignment *border = list_last_entry(&iface->ia_assignments, struct dhcpv6_assignment, head);
- border->assigned = 1 << (64 - minprefix);
-
- bool change = len != (int)iface->ia_addr_len;
- for (int i = 0; !change && i < len; ++i)
- if (addr[i].addr.s6_addr32[0] != iface->ia_addr[i].addr.s6_addr32[0] ||
- addr[i].addr.s6_addr32[1] != iface->ia_addr[i].addr.s6_addr32[1] ||
- (addr[i].preferred > 0) != (iface->ia_addr[i].preferred > 0) ||
- (addr[i].valid > (uint32_t)now + 7200) !=
- (iface->ia_addr[i].valid > (uint32_t)now + 7200))
- change = true;
-
- if (change) {
- struct dhcpv6_assignment *c;
- list_for_each_entry(c, &iface->ia_assignments, head)
- if (c != border && !iface->managed)
- apply_lease(iface, c, false);
+ for (size_t i = 0; i < iface->ia_addr_len; ++i) {
+ if (iface->ia_addr[i].preferred > (uint32_t)now &&
+ iface->ia_addr[i].prefix < 64 &&
+ iface->ia_addr[i].prefix > minprefix)
+ minprefix = iface->ia_addr[i].prefix;
}
- memcpy(iface->ia_addr, addr, len * sizeof(*addr));
- iface->ia_addr_len = len;
+ struct dhcpv6_assignment *border = list_last_entry(
+ &iface->ia_assignments, struct dhcpv6_assignment, head);
+ if (minprefix > 32 && minprefix <= 64)
+ border->assigned = 1U << (64 - minprefix);
+ else
+ border->assigned = 0;
+
+ struct list_head reassign = LIST_HEAD_INIT(reassign);
+ struct dhcpv6_assignment *c, *d;
+ list_for_each_entry_safe(c, d, &iface->ia_assignments, head) {
+ if (c->clid_len == 0 || c->valid_until < now || c->managed_size)
+ continue;
- if (change) { // Addresses / prefixes have changed
- struct list_head reassign = LIST_HEAD_INIT(reassign);
- struct dhcpv6_assignment *c, *d;
- list_for_each_entry_safe(c, d, &iface->ia_assignments, head) {
- if (c->clid_len == 0 || c->valid_until < now || c->managed_size)
- continue;
+ if (c->length < 128 && c->assigned >= border->assigned && c != border)
+ list_move(&c->head, &reassign);
+ else if (c != border)
+ apply_lease(iface, c, true);
- if (c->length < 128 && c->assigned >= border->assigned && c != border)
- list_move(&c->head, &reassign);
- else if (c != border)
- apply_lease(iface, c, true);
-
- if (c->accept_reconf && c->reconf_cnt == 0) {
- c->reconf_cnt = 1;
- c->reconf_sent = now;
- send_reconf(iface, c);
-
- // Leave all other assignments of that client alone
- struct dhcpv6_assignment *a;
- list_for_each_entry(a, &iface->ia_assignments, head)
- if (a != c && a->clid_len == c->clid_len &&
- !memcmp(a->clid_data, c->clid_data, a->clid_len))
- c->reconf_cnt = INT_MAX;
- }
+ if (c->accept_reconf && c->reconf_cnt == 0) {
+ c->reconf_cnt = 1;
+ c->reconf_sent = now;
+ send_reconf(iface, c);
+
+ // Leave all other assignments of that client alone
+ struct dhcpv6_assignment *a;
+ list_for_each_entry(a, &iface->ia_assignments, head)
+ if (a != c && a->clid_len == c->clid_len &&
+ !memcmp(a->clid_data, c->clid_data, a->clid_len))
+ c->reconf_cnt = INT_MAX;
}
+ }
- while (!list_empty(&reassign)) {
- c = list_first_entry(&reassign, struct dhcpv6_assignment, head);
- list_del(&c->head);
- if (!assign_pd(iface, c)) {
- c->assigned = 0;
- list_add(&c->head, &iface->ia_assignments);
- }
+ while (!list_empty(&reassign)) {
+ c = list_first_entry(&reassign, struct dhcpv6_assignment, head);
+ list_del(&c->head);
+ if (!assign_pd(iface, c)) {
+ c->assigned = 0;
+ list_add(&c->head, &iface->ia_assignments);
}
-
- dhcpv6_write_statefile();
}
+
+ dhcpv6_write_statefile();
}
m = i;
for (size_t i = 0; i < addrlen; ++i) {
- uint32_t prefix_pref = addrs[i].preferred - now;
- uint32_t prefix_valid = addrs[i].valid - now;
+ uint32_t prefix_pref = addrs[i].preferred;
+ uint32_t prefix_valid = addrs[i].valid;
if (addrs[i].prefix > 96 ||
addrs[i].preferred <= (uint32_t)now)
continue;
+ if (prefix_pref != UINT32_MAX)
+ prefix_pref -= now;
+
+ if (prefix_valid != UINT32_MAX)
+ prefix_valid -= now;
+
if (a->length < 128) {
struct dhcpv6_ia_prefix p = {
.type = htons(DHCPV6_OPT_IA_PREFIX),
size_t entrlen = sizeof(p) - 4;
if (datalen + entrlen + 4 > buflen ||
- (a->assigned == 0 && a->managed_size == 0))
+ (a->assigned == 0 && a->managed_size == 0) ||
+ (!a->managed_size && a->length <= addrs[i].prefix))
continue;
memcpy(buf + datalen, &p, sizeof(p));
n.addr.s6_addr32[3] = htonl(a->assigned);
size_t entrlen = sizeof(n) - 4;
- if (iface->managed < RELAYD_MANAGED_NO_AFLAG && i != m)
+ if (iface->managed < RELAYD_MANAGED_NO_AFLAG && i != m &&
+ addrs[i].prefix <= 64)
continue;
if (datalen + entrlen + 4 > buflen || a->assigned == 0)
if (!clid_data || !clid_len || clid_len > 130)
goto out;
- update(iface);
-
struct dhcpv6_assignment *first = NULL;
dhcpv6_for_each_option(start, end, otype, olen, odata) {
bool is_pd = (otype == DHCPV6_OPT_IA_PD);
projects / project / odhcpd.git / blobdiff