#include <libubox/uloop.h>
#include <libubox/avl.h>
#include <libubox/ustream.h>
+#include <libubox/vlist.h>
+
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+#define max(a, b) (((a) > (b)) ? (a) : (b))
// RFC 6106 defines this router advertisement option
#define ND_OPT_ROUTE_INFO 24
#define ALL_IPV6_NODES "ff02::1"
#define ALL_IPV6_ROUTERS "ff02::2"
+#define NTP_SUBOPTION_SRV_ADDR 1
+#define NTP_SUBOPTION_MC_ADDR 2
+#define NTP_SUBOPTION_SRV_FQDN 3
+#define IPV6_ADDR_LEN 16
+
#define IN6_IS_ADDR_ULA(a) (((a)->s6_addr32[0] & htonl(0xfe000000)) == htonl(0xfc000000))
+#define ADDR_MATCH_PIO_FILTER(_addr, iface) (odhcpd_bmemcmp(&(_addr)->addr, \
+ &(iface)->pio_filter_addr, \
+ (iface)->pio_filter_length) != 0 || \
+ (_addr)->prefix < (iface)->pio_filter_length)
+
struct interface;
struct nl_sock;
-extern struct list_head leases;
+extern struct vlist_tree leases;
+extern struct config config;
struct odhcpd_event {
struct uloop_fd uloop;
void (*recv_msgs)(struct odhcpd_event *e);
};
+typedef int (*send_reply_cb_t)(const void *buf, size_t len,
+ const struct sockaddr *dest, socklen_t dest_len,
+ void *opaque);
+
+typedef void (*dhcpv6_binding_cb_handler_t)(struct in6_addr *addr, int prefix,
+ uint32_t pref, uint32_t valid,
+ void *arg);
+
union if_addr {
struct in_addr in;
struct in6_addr in6;
uint32_t preferred;
uint32_t valid;
- /* ipv6 only */
- uint8_t dprefix;
+ union {
+ /* ipv6 only */
+ struct {
+ uint8_t dprefix;
+ uint8_t invalid_advertisements;
+ bool tentative;
+ };
- /* ipv4 only */
- struct in_addr broadcast;
+ /* ipv4 only */
+ struct in_addr broadcast;
+ };
};
enum odhcpd_mode {
OAF_BOUND = (1 << 1),
OAF_STATIC = (1 << 2),
OAF_BROKEN_HOSTNAME = (1 << 3),
+ OAF_DHCPV4 = (1 << 4),
+ OAF_DHCPV6_NA = (1 << 5),
+ OAF_DHCPV6_PD = (1 << 6),
};
struct config {
char *dhcp_cb;
char *dhcp_statefile;
int log_level;
-} config;
+};
struct lease {
- struct list_head head;
- struct in_addr ipaddr;
- uint32_t hostid;
+ struct vlist_node node;
+ struct list_head assignments;
+ uint32_t ipaddr;
+ uint64_t hostid;
struct ether_addr mac;
uint16_t duid_len;
uint8_t *duid;
- uint32_t dhcpv4_leasetime;
- char hostname[];
+ uint32_t leasetime;
+ char *hostname;
};
+enum {
+ LEASE_ATTR_IP,
+ LEASE_ATTR_MAC,
+ LEASE_ATTR_DUID,
+ LEASE_ATTR_HOSTID,
+ LEASE_ATTR_LEASETIME,
+ LEASE_ATTR_NAME,
+ LEASE_ATTR_MAX
+};
struct odhcpd_ref_ip;
struct dhcp_assignment {
struct list_head head;
+ struct list_head lease_list;
+
+ void (*dhcp_free_cb)(struct dhcp_assignment *a);
+
struct interface *iface;
+ struct lease *lease;
struct sockaddr_in6 peer;
time_t valid_until;
+ time_t preferred_until;
#define fr_timer reconf_timer
struct uloop_timeout reconf_timer;
struct odhcpd_ref_ip *fr_ip;
uint32_t addr;
- uint32_t assigned;
+ union {
+ uint64_t assigned_host_id;
+ uint32_t assigned_subnet_id;
+ };
uint32_t iaid;
uint8_t length; // length == 128 -> IA_NA, length <= 64 -> IA_PD
unsigned int flags;
uint32_t leasetime;
char *hostname;
+ char *reqopts;
#define hwaddr mac
uint8_t mac[6];
- uint8_t clid_len;
+ uint16_t clid_len;
uint8_t clid_data[];
};
struct interface {
struct avl_node avl;
+ int ifflags;
int ifindex;
char *ifname;
const char *name;
// IPv6 runtime data
struct odhcpd_ipaddr *addr6;
size_t addr6_len;
+ struct odhcpd_ipaddr *invalid_addr6;
+ size_t invalid_addr6_len;
// RA runtime data
+ struct odhcpd_event router_event;
struct uloop_timeout timer_rs;
+ uint32_t ra_sent;
// DHCPv6 runtime data
struct odhcpd_event dhcpv6_event;
// NDP runtime data
struct odhcpd_event ndp_event;
+ int ndp_ping_fd;
// IPv4 runtime data
struct odhcpd_ipaddr *addr4;
bool master;
bool ignore;
bool always_rewrite_dns;
+ bool dns_service;
+
+ // NDP
+ int learn_routes;
+
+ // RA
+ uint8_t ra_flags;
+ bool ra_slaac;
bool ra_not_onlink;
bool ra_advrouter;
bool ra_useleasetime;
bool ra_dns;
bool no_dynamic_dhcp;
+ bool have_link_local;
uint8_t pio_filter_length;
struct in6_addr pio_filter_addr;
-
- // RA
- int learn_routes;
int default_router;
- int ra_managed;
int route_preference;
int ra_maxinterval;
int ra_mininterval;
uint32_t ra_retranstime;
uint32_t ra_hoplimit;
int ra_mtu;
+ uint32_t preferred_lifetime;
+
+ // DHCP
+ uint32_t dhcp_leasetime;
// DHCPv4
struct in_addr dhcpv4_start;
size_t dhcpv4_router_cnt;
struct in_addr *dhcpv4_dns;
size_t dhcpv4_dns_cnt;
- uint32_t dhcpv4_leasetime;
bool dhcpv4_forcereconf;
// DNS
bool dhcpv6_assignall;
bool dhcpv6_pd;
bool dhcpv6_na;
+ uint32_t dhcpv6_hostid_len;
char *upstream;
size_t upstream_len;
char *filter_class;
+
+ // NTP
+ struct in_addr *dhcpv4_ntp;
+ size_t dhcpv4_ntp_cnt;
+ uint8_t *dhcpv6_ntp;
+ uint16_t dhcpv6_ntp_len;
+ size_t dhcpv6_ntp_cnt;
+
+ // SNTP
+ struct in6_addr *dhcpv6_sntp;
+ size_t dhcpv6_sntp_cnt;
};
extern struct avl_tree interfaces;
+extern const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX];
+
+inline static void free_assignment(struct dhcp_assignment *a)
+{
+ list_del(&a->head);
+ list_del(&a->lease_list);
+
+ if (a->dhcp_free_cb)
+ a->dhcp_free_cb(a);
-#define RA_MANAGED_NO_MFLAG 0
-#define RA_MANAGED_MFLAG 1
-#define RA_MANAGED_NO_AFLAG 2
+ free(a->hostname);
+ free(a->reqopts);
+ free(a);
+}
+inline static struct dhcp_assignment *alloc_assignment(size_t extra_len)
+{
+ struct dhcp_assignment *a = calloc(1, sizeof(*a) + extra_len);
+
+ if (!a)
+ return NULL;
+
+ INIT_LIST_HEAD(&a->head);
+ INIT_LIST_HEAD(&a->lease_list);
+
+ return a;
+}
// Exported main functions
int odhcpd_register(struct odhcpd_event *event);
struct in6_addr *addr);
int odhcpd_get_interface_config(const char *ifname, const char *what);
int odhcpd_get_mac(const struct interface *iface, uint8_t mac[6]);
+int odhcpd_get_flags(const struct interface *iface);
struct interface* odhcpd_get_interface_by_index(int ifindex);
-struct interface* odhcpd_get_master_interface(void);
int odhcpd_urandom(void *data, size_t len);
void odhcpd_run(void);
bool odhcpd_valid_hostname(const char *name);
int config_parse_interface(void *data, size_t len, const char *iname, bool overwrite);
+struct lease *config_find_lease_by_duid(const uint8_t *duid, const uint16_t len);
+struct lease *config_find_lease_by_mac(const uint8_t *mac);
+struct lease *config_find_lease_by_hostid(const uint64_t hostid);
+struct lease *config_find_lease_by_ipaddr(const uint32_t ipaddr);
+int set_lease_from_blobmsg(struct blob_attr *ba);
#ifdef WITH_UBUS
int ubus_init(void);
const struct in_addr *addr, const char *name, const char *interface);
#endif
+ssize_t dhcpv6_ia_handle_IAs(uint8_t *buf, size_t buflen, struct interface *iface,
+ const struct sockaddr_in6 *addr, const void *data, const uint8_t *end);
+int dhcpv6_ia_init(void);
+int dhcpv6_ia_setup_interface(struct interface *iface, bool enable);
+void dhcpv6_ia_enum_addrs(struct interface *iface, struct dhcp_assignment *c, time_t now,
+ dhcpv6_binding_cb_handler_t func, void *arg);
+void dhcpv6_ia_write_statefile(void);
+
int netlink_add_netevent_handler(struct netevent_handler *hdlr);
ssize_t netlink_get_interface_addrs(const int ifindex, bool v6,
struct odhcpd_ipaddr **addrs);
+ssize_t netlink_get_interface_linklocal(int ifindex, struct odhcpd_ipaddr **addrs);
+int netlink_get_interface_proxy_neigh(int ifindex, const struct in6_addr *addr);
int netlink_setup_route(const struct in6_addr *addr, const int prefixlen,
const int ifindex, const struct in6_addr *gw,
const uint32_t metric, const bool add);
int dhcpv4_init(void);
int dhcpv4_setup_interface(struct interface *iface, bool enable);
+void dhcpv4_handle_msg(void *addr, void *data, size_t len,
+ struct interface *iface, _unused void *dest_addr,
+ send_reply_cb_t send_reply, void *opaque);
#endif
int router_setup_interface(struct interface *iface, bool enable);
int dhcpv6_setup_interface(struct interface *iface, bool enable);
int ndp_setup_interface(struct interface *iface, bool enable);
+void reload_services(struct interface *iface);
void odhcpd_reload(void);
projects / project / odhcpd.git / blobdiff