#include <zebra.h>
#include <netinet/ip.h>
+#include "lib/memory.h"
#include "lib/hash.h"
#include "lib/hook.h"
#include "lib/if.h"
#include "lib/linklist.h"
+#include "lib/northbound.h"
#include "lib/privs.h"
#include "lib/stream.h"
#include "lib/thread.h"
#include "lib/vty.h"
/* Global definitions */
-#define VRRP_DEFAULT_ADVINT 100
-#define VRRP_DEFAULT_PRIORITY 100
#define VRRP_RADV_INT 16
#define VRRP_PRIO_MASTER 255
#define VRRP_MCASTV4_GROUP_STR "224.0.0.18"
#define VRRP_MCASTV6_GROUP 0xff020000000000000000000000000012
#define IPPROTO_VRRP 112
-#define VRRP_LOGPFX_VRID "[VRID: %u] "
+#define VRRP_LOGPFX_VRID "[VRID %u] "
+#define VRRP_LOGPFX_FAM "[%s] "
+
+/* Default defaults */
+#define VRRP_XPATH_FULL "/frr-interface:lib/interface/frr-vrrpd:vrrp/vrrp-group"
+#define VRRP_XPATH "./frr-vrrpd:vrrp/vrrp-group"
+#define VRRP_DEFAULT_PRIORITY 100
+#define VRRP_DEFAULT_ADVINT 100
+#define VRRP_DEFAULT_PREEMPT true
+#define VRRP_DEFAULT_ACCEPT true
+#define VRRP_DEFAULT_SHUTDOWN false
+
+/* User compatibility constant */
+#define CS2MS 10
+
+DECLARE_MGROUP(VRRPD)
+
+/* Northbound */
+extern const struct frr_yang_module_info frr_vrrpd_info;
+
+/* Configured defaults */
+struct vrrp_defaults {
+ uint8_t version;
+ uint8_t priority;
+ uint16_t advertisement_interval;
+ bool preempt_mode;
+ bool accept_mode;
+ bool shutdown;
+};
+
+extern struct vrrp_defaults vd;
/* threadmaster */
extern struct thread_master *master;
*/
struct list *addrs;
+ /*
+ * This flag says whether we are waiting on an interface up
+ * notification from Zebra before we send an ADVERTISEMENT.
+ */
+ bool advert_pending;
+
+ /*
+ * If this is an IPv4 VRRP router, this flag says whether we are
+ * waiting on an interface up notification from Zebra before we send
+ * gratuitous ARP packets for all our addresses. Should never be true
+ * if family == AF_INET6.
+ */
+ bool garp_pending;
+ /*
+ * If this is an IPv6 VRRP router, this flag says whether we are
+ * waiting on an interface up notification from Zebra before we send
+ * Unsolicited Neighbor Advertisement packets for all our addresses.
+ * Should never be true if family == AF_INET.
+ */
+ bool ndisc_pending;
+
/*
* Effective priority
* => vr->priority if we are Backup
int state;
} fsm;
+ struct {
+ /* Total number of advertisements sent and received */
+ uint32_t adver_tx_cnt;
+ uint32_t adver_rx_cnt;
+ /* Total number of gratuitous ARPs sent */
+ uint32_t garp_tx_cnt;
+ /* Total number of unsolicited Neighbor Advertisements sent */
+ uint32_t una_tx_cnt;
+ /* Total number of state transitions */
+ uint32_t trans_cnt;
+ } stats;
+
struct thread *t_master_down_timer;
struct thread *t_adver_timer;
struct thread *t_read;
/* Whether this instance was automatically configured */
bool autoconf;
+ /* Whether this VRRP router is in administrative shutdown */
+ bool shutdown;
+
/* Interface */
struct interface *ifp;
*/
void vrrp_init(void);
+/*
+ * Destroy all VRRP instances and gracefully shutdown.
+ *
+ * For instances in Master state, VRRP advertisements with 0 priority will be
+ * sent if possible to notify Backup routers that we are going away.
+ */
+void vrrp_fini(void);
+
/* Creation and destruction ------------------------------------------------ */
/* Configuration controllers ----------------------------------------------- */
+/*
+ * Check if a Virtual Router ought to be started, and if so, start it.
+ *
+ * vr
+ * Virtual Router to checkstart
+ */
+void vrrp_check_start(struct vrrp_vrouter *vr);
+
/*
* Change the configured priority of a VRRP Virtual Router.
*
/*
* Add an IPvX address to a VRRP Virtual Router.
*
- * r
+ * vr
* Virtual Router to add IPvx address to
*
* ip
* -1 on error
* 0 otherwise
*/
-int vrrp_add_ip(struct vrrp_router *r, struct ipaddr *ip, bool activate);
+int vrrp_add_ip(struct vrrp_vrouter *vr, struct ipaddr *ip);
/*
* Add an IPv4 address to a VRRP Virtual Router.
* -1 on error
* 0 otherwise
*/
-int vrrp_add_ipv4(struct vrrp_vrouter *vr, struct in_addr v4, bool activate);
+int vrrp_add_ipv4(struct vrrp_vrouter *vr, struct in_addr v4);
/*
* Add an IPv6 address to a VRRP Virtual Router.
* -1 on error
* 0 otherwise
*/
-int vrrp_add_ipv6(struct vrrp_vrouter *vr, struct in6_addr v6, bool activate);
+int vrrp_add_ipv6(struct vrrp_vrouter *vr, struct in6_addr v6);
/*
* Remove an IP address from a VRRP Virtual Router.
*
- * r
+ * vr
* Virtual Router to remove IP address from
*
* ip
* -1 on error
* 0 otherwise
*/
-int vrrp_del_ip(struct vrrp_router *r, struct ipaddr *ip, bool deactivate);
+int vrrp_del_ip(struct vrrp_vrouter *vr, struct ipaddr *ip);
/*
* Remove an IPv4 address from a VRRP Virtual Router.
* -1 on error
* 0 otherwise
*/
-int vrrp_del_ipv4(struct vrrp_vrouter *vr, struct in_addr v4, bool deactivate);
+int vrrp_del_ipv4(struct vrrp_vrouter *vr, struct in_addr v4);
/*
* Remove an IPv6 address from a VRRP Virtual Router.
* -1 on error
* 0 otherwise
*/
-int vrrp_del_ipv6(struct vrrp_vrouter *vr, struct in6_addr v6, bool deactivate);
+int vrrp_del_ipv6(struct vrrp_vrouter *vr, struct in6_addr v6);
/* State machine ----------------------------------------------------------- */
#define VRRP_EVENT_STARTUP 0
#define VRRP_EVENT_SHUTDOWN 1
-extern const char *vrrp_state_names[3];
-extern const char *vrrp_event_names[2];
+extern const char *const vrrp_state_names[3];
/*
* This hook called whenever the state of a Virtual Router changes, after the
* Use this if you need to react to state changes to perform non-critical
* tasks. Critical tasks should go in the internal state change handlers.
*/
-DECLARE_HOOK(vrrp_change_state_hook, (struct vrrp_router * r, int to), (r, to));
+DECLARE_HOOK(vrrp_change_state_hook, (struct vrrp_router *r, int to), (r, to));
/*
* Trigger a VRRP event on a given Virtual Router..
*/
void vrrp_autoconfig_off(void);
-/*
- * Callback to notify autoconfig of interface add.
- *
- * If the interface is a VRRP-compatible device, and there is no existing VRRP
- * router running on it, one is created. All addresses on the interface are
- * added to the router.
- *
- * ifp
- * Interface to operate on
- *
- * Returns:
- * -1 on failure
- * 0 otherwise
- */
-int vrrp_autoconfig_if_add(struct interface *ifp);
+/* Interface Tracking ------------------------------------------------------ */
-/*
- * Callback to notify autoconfig of interface delete.
- *
- * If the interface is a VRRP-compatible device, and a VRRP router is running
- * on it, and that VRRP router was automatically configured, it will be
- * deleted. If that was the last router for the corresponding VRID (i.e., if
- * this interface was a v4 VRRP interface and no v6 router is configured for
- * the same VRID) then the entire virtual router is deleted.
- *
- * ifp
- * Interface to operate on
- *
- * Returns:
- * -1 on failure
- * 0 otherwise
- */
-int vrrp_autoconfig_if_del(struct interface *ifp);
-
-/*
- * Callback to notify autoconfig of interface up.
- *
- * Roughly equivalent to vrrp_autoconfig_if_add, except that addresses are
- * refreshed if an autoconfigured virtual router already exists.
- *
- * ifp
- * Interface to operate on
- *
- * Returns:
- * -1 on failure
- * 0 otherwise
- */
-int vrrp_autoconfig_if_up(struct interface *ifp);
-
-/*
- * Callback to notify autoconfig of interface down.
- *
- * Does nothing. An interface down event is accompanied by address deletion
- * events for all the addresses on the interface; if an autoconfigured VRRP
- * router exists on this interface, then it will have all its addresses deleted
- * and end up in Initialize.
- *
- * ifp
- * Interface to operate on
- *
- * Returns:
- * -1 on failure
- * 0 otherwise
- */
-int vrrp_autoconfig_if_down(struct interface *ifp);
-
-/*
- * Callback to notify autoconfig of a new interface address.
- *
- * If a VRRP router exists on this interface, its address list is updated to
- * match the new address list. If no addresses remain, a Shutdown event is
- * issued to the VRRP router.
- *
- * ifp
- * Interface to operate on
- *
- * Returns:
- * -1 on failure
- * 0 otherwise
- *
- */
-int vrrp_autoconfig_if_address_add(struct interface *ifp);
-
-/*
- * Callback to notify autoconfig of a removed interface address.
- *
- * If a VRRP router exists on this interface, its address list is updated to
- * match the new address list. If no addresses remain, a Shutdown event is
- * issued to the VRRP router.
- *
- * ifp
- * Interface to operate on
- *
- * Returns:
- * -1 on failure
- * 0 otherwise
- *
- */
-int vrrp_autoconfig_if_address_del(struct interface *ifp);
+void vrrp_if_add(struct interface *ifp);
+void vrrp_if_del(struct interface *ifp);
+void vrrp_if_up(struct interface *ifp);
+void vrrp_if_down(struct interface *ifp);
+void vrrp_if_address_add(struct interface *ifp);
+void vrrp_if_address_del(struct interface *ifp);
/* Other ------------------------------------------------------------------- */
-/*
- * Write interface block-level configuration to vty.
- *
- * vty
- * vty to write config to
- *
- * Returns:
- * # of lines written
- */
-int vrrp_config_write_interface(struct vty *vty);
-
/*
* Write global level configuration to vty.
*
/*
* Find VRRP Virtual Router by Virtual Router ID
*/
-struct vrrp_vrouter *vrrp_lookup(struct interface *ifp, uint8_t vrid);
+struct vrrp_vrouter *vrrp_lookup(const struct interface *ifp, uint8_t vrid);
#endif /* __VRRP_H__ */
projects / mirror_frr.git / blobdiff