diff options
Diffstat (limited to 'bgpd/rfapi/rfapi_private.h')
| -rw-r--r-- | bgpd/rfapi/rfapi_private.h | 559 |
1 files changed, 261 insertions, 298 deletions
diff --git a/bgpd/rfapi/rfapi_private.h b/bgpd/rfapi/rfapi_private.h index 5a6936fcce..e7a3e5aae3 100644 --- a/bgpd/rfapi/rfapi_private.h +++ b/bgpd/rfapi/rfapi_private.h @@ -1,4 +1,4 @@ -/* +/* * * Copyright 2009-2016, LabN Consulting, L.L.C. * @@ -18,7 +18,7 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -/* +/* * Internal definitions for RFAPI. Not for use by other code */ @@ -40,96 +40,94 @@ * 1. each is referenced in by_lifetime * 2. each is referenced by exactly one of: ipN_by_prefix, ip0_by_ether */ -struct rfapi_advertised_prefixes -{ - struct skiplist *ipN_by_prefix; /* all except 0/32, 0/128 */ - struct skiplist *ip0_by_ether; /* ip prefix 0/32, 0/128 */ - struct skiplist *by_lifetime; /* all */ +struct rfapi_advertised_prefixes { + struct skiplist *ipN_by_prefix; /* all except 0/32, 0/128 */ + struct skiplist *ip0_by_ether; /* ip prefix 0/32, 0/128 */ + struct skiplist *by_lifetime; /* all */ }; -struct rfapi_descriptor -{ - struct route_node *un_node; /* backref to un table */ - - struct rfapi_descriptor *next; /* next vn_addr */ - - /* supplied by client */ - struct bgp *bgp; /* from rfp_start_val */ - struct rfapi_ip_addr vn_addr; - struct rfapi_ip_addr un_addr; - rfapi_response_cb_t *response_cb; /* override per-bgp response_cb */ - void *cookie; /* for callbacks */ - struct rfapi_tunneltype_option default_tunneltype_option; - - /* supplied by matched configuration */ - struct prefix_rd rd; - struct ecommunity *rt_export_list; - uint32_t response_lifetime; - - /* list of prefixes currently being advertised by this nve */ - struct rfapi_advertised_prefixes advertised; - - time_t open_time; - - uint32_t max_prefix_lifetime; - uint32_t min_prefix_lifetime; - - /* reference to this nve's import table */ - struct rfapi_import_table *import_table; - - uint32_t monitor_count; - struct route_table *mon; /* rfapi_monitors */ - struct skiplist *mon_eth; /* ethernet monitors */ - - /* - * rib RIB as seen by NVE - * rib_pending RIB containing nodes with updated info chains - * rsp_times last time we sent response containing pfx - */ - uint32_t rib_prefix_count; /* pfxes with routes */ - struct route_table *rib[AFI_MAX]; - struct route_table *rib_pending[AFI_MAX]; - struct work_queue *updated_responses_queue; - struct route_table *rsp_times[AFI_MAX]; - - uint32_t rsp_counter; /* dedup initial rsp */ - time_t rsp_time; /* dedup initial rsp */ - time_t ftd_last_allowed_time; /* FTD filter */ - - unsigned int stat_count_nh_reachable; - unsigned int stat_count_nh_removal; - - /* - * points to the original nve group structure that matched - * when this nve_descriptor was created. We use this pointer - * in rfapi_close() to find the nve group structure and - * delete its reference back to us. - * - * If the nve group structure is deleted (via configuration - * change) while this nve_descriptor exists, this rfg pointer - * will be set to NULL. - */ - struct rfapi_nve_group_cfg *rfg; - - /* - * This ~7kB structure is here to permit multiple routes for - * a prefix to be injected to BGP. There are at least two - * situations where such conditions obtain: - * - * When an VNC route is exported to BGP on behalf of the set of - * NVEs that belong to the export NVE group, it is replicated - * so that there is one route per NVE (and the route's nexthop - * is the NVE's VN address). - * - * Each of these routes being injected to BGP must have a distinct - * peer pointer (otherwise, if they have the same peer pointer, each - * route will be considered an implicit waithdraw of the previous - * route injected from that peer, and the new route will replace - * rather than augment the old one(s)). - */ - struct peer *peer; - - uint32_t flags; +struct rfapi_descriptor { + struct route_node *un_node; /* backref to un table */ + + struct rfapi_descriptor *next; /* next vn_addr */ + + /* supplied by client */ + struct bgp *bgp; /* from rfp_start_val */ + struct rfapi_ip_addr vn_addr; + struct rfapi_ip_addr un_addr; + rfapi_response_cb_t *response_cb; /* override per-bgp response_cb */ + void *cookie; /* for callbacks */ + struct rfapi_tunneltype_option default_tunneltype_option; + + /* supplied by matched configuration */ + struct prefix_rd rd; + struct ecommunity *rt_export_list; + uint32_t response_lifetime; + + /* list of prefixes currently being advertised by this nve */ + struct rfapi_advertised_prefixes advertised; + + time_t open_time; + + uint32_t max_prefix_lifetime; + uint32_t min_prefix_lifetime; + + /* reference to this nve's import table */ + struct rfapi_import_table *import_table; + + uint32_t monitor_count; + struct route_table *mon; /* rfapi_monitors */ + struct skiplist *mon_eth; /* ethernet monitors */ + + /* + * rib RIB as seen by NVE + * rib_pending RIB containing nodes with updated info chains + * rsp_times last time we sent response containing pfx + */ + uint32_t rib_prefix_count; /* pfxes with routes */ + struct route_table *rib[AFI_MAX]; + struct route_table *rib_pending[AFI_MAX]; + struct work_queue *updated_responses_queue; + struct route_table *rsp_times[AFI_MAX]; + + uint32_t rsp_counter; /* dedup initial rsp */ + time_t rsp_time; /* dedup initial rsp */ + time_t ftd_last_allowed_time; /* FTD filter */ + + unsigned int stat_count_nh_reachable; + unsigned int stat_count_nh_removal; + + /* + * points to the original nve group structure that matched + * when this nve_descriptor was created. We use this pointer + * in rfapi_close() to find the nve group structure and + * delete its reference back to us. + * + * If the nve group structure is deleted (via configuration + * change) while this nve_descriptor exists, this rfg pointer + * will be set to NULL. + */ + struct rfapi_nve_group_cfg *rfg; + + /* + * This ~7kB structure is here to permit multiple routes for + * a prefix to be injected to BGP. There are at least two + * situations where such conditions obtain: + * + * When an VNC route is exported to BGP on behalf of the set of + * NVEs that belong to the export NVE group, it is replicated + * so that there is one route per NVE (and the route's nexthop + * is the NVE's VN address). + * + * Each of these routes being injected to BGP must have a distinct + * peer pointer (otherwise, if they have the same peer pointer, each + * route will be considered an implicit waithdraw of the previous + * route injected from that peer, and the new route will replace + * rather than augment the old one(s)). + */ + struct peer *peer; + + uint32_t flags; #define RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_IP 0x00000001 #define RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_IP6 0x00000002 #define RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_L2VPN 0x00000004 @@ -138,30 +136,32 @@ struct rfapi_descriptor #define RFAPI_HD_FLAG_IS_VRF 0x00000012 }; -#define RFAPI_QUEUED_FLAG(afi) ( \ - ((afi) == AFI_IP)? RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_IP: \ - (((afi) == AFI_IP6)? RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_IP6: \ - (((afi) == AFI_L2VPN)? RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_L2VPN: \ - (assert(0), 0) ))) +#define RFAPI_QUEUED_FLAG(afi) \ + (((afi) == AFI_IP) \ + ? RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_IP \ + : (((afi) == AFI_IP6) \ + ? RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_IP6 \ + : (((afi) == AFI_L2VPN) \ + ? RFAPI_HD_FLAG_CALLBACK_SCHEDULED_AFI_L2VPN \ + : (assert(0), 0)))) -struct rfapi_global_stats -{ - time_t last_reset; - unsigned int max_descriptors; +struct rfapi_global_stats { + time_t last_reset; + unsigned int max_descriptors; - unsigned int count_unknown_nves; + unsigned int count_unknown_nves; - unsigned int count_queries; - unsigned int count_queries_failed; + unsigned int count_queries; + unsigned int count_queries_failed; - unsigned int max_responses; /* semantics? */ + unsigned int max_responses; /* semantics? */ - unsigned int count_registrations; - unsigned int count_registrations_failed; + unsigned int count_registrations; + unsigned int count_registrations_failed; - unsigned int count_updated_response_updates; - unsigned int count_updated_response_deletes; + unsigned int count_updated_response_updates; + unsigned int count_updated_response_deletes; }; /* @@ -170,220 +170,187 @@ struct rfapi_global_stats * Radix tree is indexed by un address; follow chain and * check vn address to get exact match. */ -struct rfapi -{ - struct route_table un[AFI_MAX]; - struct rfapi_import_table *imports; /* IPv4, IPv6 */ - struct list descriptors;/* debug & resolve-nve imports */ - - struct rfapi_global_stats stat; - - /* - * callbacks into RFP, set at startup time (bgp_rfapi_new() gets - * values from rfp_start()) or via rfapi_rfp_set_cb_methods() - * (otherwise NULL). Note that the response_cb method can also - * be overridden per-rfd (currently used only for debug/test scenarios) - */ - struct rfapi_rfp_cb_methods rfp_methods; - - /* - * Import tables for Ethernet over IPSEC - * - * The skiplist keys are LNIs. Values are pointers - * to struct rfapi_import_table. - */ - struct skiplist *import_mac; /* L2 */ - - /* - * when exporting plain routes ("registered-nve" mode) to - * bgp unicast or zebra, we need to keep track of information - * related to expiring the routes according to the VNC lifetime - */ - struct route_table *rt_export_bgp[AFI_MAX]; - struct route_table *rt_export_zebra[AFI_MAX]; - - /* - * For VNC->BGP unicast exports in CE mode, we need a - * routing table that collects all of the VPN routes - * in a single tree. The VPN rib is split up according - * to RD first, so we can't use that. This is an import - * table that matches all RTs. - */ - struct rfapi_import_table *it_ce; - - /* - * when importing bgp-direct routes in resolve-nve mode, - * this list maps unicast route nexthops to their bgp_infos - * in the unicast table - */ - struct skiplist *resolve_nve_nexthop; - - /* - * Descriptors for which rfapi_close() was called during a callback. - * They will be closed after the callback finishes. - */ - struct work_queue *deferred_close_q; - - /* - * For "show vnc responses" - */ - uint32_t response_immediate_count; - uint32_t response_updated_count; - uint32_t monitor_count; - - uint32_t rib_prefix_count_total; - uint32_t rib_prefix_count_total_max; - - uint32_t flags; +struct rfapi { + struct route_table un[AFI_MAX]; + struct rfapi_import_table *imports; /* IPv4, IPv6 */ + struct list descriptors; /* debug & resolve-nve imports */ + + struct rfapi_global_stats stat; + + /* + * callbacks into RFP, set at startup time (bgp_rfapi_new() gets + * values from rfp_start()) or via rfapi_rfp_set_cb_methods() + * (otherwise NULL). Note that the response_cb method can also + * be overridden per-rfd (currently used only for debug/test scenarios) + */ + struct rfapi_rfp_cb_methods rfp_methods; + + /* + * Import tables for Ethernet over IPSEC + * + * The skiplist keys are LNIs. Values are pointers + * to struct rfapi_import_table. + */ + struct skiplist *import_mac; /* L2 */ + + /* + * when exporting plain routes ("registered-nve" mode) to + * bgp unicast or zebra, we need to keep track of information + * related to expiring the routes according to the VNC lifetime + */ + struct route_table *rt_export_bgp[AFI_MAX]; + struct route_table *rt_export_zebra[AFI_MAX]; + + /* + * For VNC->BGP unicast exports in CE mode, we need a + * routing table that collects all of the VPN routes + * in a single tree. The VPN rib is split up according + * to RD first, so we can't use that. This is an import + * table that matches all RTs. + */ + struct rfapi_import_table *it_ce; + + /* + * when importing bgp-direct routes in resolve-nve mode, + * this list maps unicast route nexthops to their bgp_infos + * in the unicast table + */ + struct skiplist *resolve_nve_nexthop; + + /* + * Descriptors for which rfapi_close() was called during a callback. + * They will be closed after the callback finishes. + */ + struct work_queue *deferred_close_q; + + /* + * For "show vnc responses" + */ + uint32_t response_immediate_count; + uint32_t response_updated_count; + uint32_t monitor_count; + + uint32_t rib_prefix_count_total; + uint32_t rib_prefix_count_total_max; + + uint32_t flags; #define RFAPI_INCALLBACK 0x00000001 - void *rfp; /* from rfp_start */ + void *rfp; /* from rfp_start */ }; -#define RFAPI_RIB_PREFIX_COUNT_INCR(rfd, rfapi) do { \ - ++(rfd)->rib_prefix_count; \ - ++(rfapi)->rib_prefix_count_total; \ - if ((rfapi)->rib_prefix_count_total > (rfapi)->rib_prefix_count_total_max) \ - ++(rfapi)->rib_prefix_count_total_max; \ - } while (0) - -#define RFAPI_RIB_PREFIX_COUNT_DECR(rfd, rfapi) do { \ - --(rfd)->rib_prefix_count; \ - --(rfapi)->rib_prefix_count_total; \ - } while (0) - -#define RFAPI_0_PREFIX(prefix) ( \ - (((prefix)->family == AF_INET)? (prefix)->u.prefix4.s_addr == 0: \ - (((prefix)->family == AF_INET6)? \ - (IN6_IS_ADDR_UNSPECIFIED(&(prefix)->u.prefix6)) : 0)) \ -) - -#define RFAPI_0_ETHERADDR(ea) ( \ - ((ea)->octet[0] | (ea)->octet[1] | (ea)->octet[2] | \ - (ea)->octet[3] | (ea)->octet[4] | (ea)->octet[5]) == 0) - -#define RFAPI_HOST_PREFIX(prefix) ( \ - ((prefix)->family == AF_INET)? ((prefix)->prefixlen == 32): \ - (((prefix)->family == AF_INET6)? ((prefix)->prefixlen == 128): 0) ) - -extern void -rfapiQprefix2Rprefix ( - struct prefix *qprefix, - struct rfapi_ip_prefix *rprefix); - -extern int -rfapi_find_rfd ( - struct bgp *bgp, - struct rfapi_ip_addr *vn_addr, - struct rfapi_ip_addr *un_addr, - struct rfapi_descriptor **rfd); +#define RFAPI_RIB_PREFIX_COUNT_INCR(rfd, rfapi) \ + do { \ + ++(rfd)->rib_prefix_count; \ + ++(rfapi)->rib_prefix_count_total; \ + if ((rfapi)->rib_prefix_count_total \ + > (rfapi)->rib_prefix_count_total_max) \ + ++(rfapi)->rib_prefix_count_total_max; \ + } while (0) + +#define RFAPI_RIB_PREFIX_COUNT_DECR(rfd, rfapi) \ + do { \ + --(rfd)->rib_prefix_count; \ + --(rfapi)->rib_prefix_count_total; \ + } while (0) + +#define RFAPI_0_PREFIX(prefix) \ + ((((prefix)->family == AF_INET) \ + ? (prefix)->u.prefix4.s_addr == 0 \ + : (((prefix)->family == AF_INET6) \ + ? (IN6_IS_ADDR_UNSPECIFIED(&(prefix)->u.prefix6)) \ + : 0))) + +#define RFAPI_0_ETHERADDR(ea) \ + (((ea)->octet[0] | (ea)->octet[1] | (ea)->octet[2] | (ea)->octet[3] \ + | (ea)->octet[4] | (ea)->octet[5]) \ + == 0) + +#define RFAPI_HOST_PREFIX(prefix) \ + (((prefix)->family == AF_INET) \ + ? ((prefix)->prefixlen == 32) \ + : (((prefix)->family == AF_INET6) \ + ? ((prefix)->prefixlen == 128) \ + : 0)) + +extern void rfapiQprefix2Rprefix(struct prefix *qprefix, + struct rfapi_ip_prefix *rprefix); + +extern int rfapi_find_rfd(struct bgp *bgp, struct rfapi_ip_addr *vn_addr, + struct rfapi_ip_addr *un_addr, + struct rfapi_descriptor **rfd); extern void -add_vnc_route ( - struct rfapi_descriptor *rfd, /* cookie + UN addr for VPN */ - struct bgp *bgp, - int safi, - struct prefix *p, - struct prefix_rd *prd, - struct rfapi_ip_addr *nexthop, - uint32_t *local_pref, /* host byte order */ - uint32_t *lifetime, /* host byte order */ - struct bgp_tea_options *rfp_options, - struct rfapi_un_option *options_un, - struct rfapi_vn_option *options_vn, - struct ecommunity *rt_export_list, - uint32_t *med, - uint32_t *label, - uint8_t type, - uint8_t sub_type, - int flags); +add_vnc_route(struct rfapi_descriptor *rfd, /* cookie + UN addr for VPN */ + struct bgp *bgp, int safi, struct prefix *p, + struct prefix_rd *prd, struct rfapi_ip_addr *nexthop, + uint32_t *local_pref, /* host byte order */ + uint32_t *lifetime, /* host byte order */ + struct bgp_tea_options *rfp_options, + struct rfapi_un_option *options_un, + struct rfapi_vn_option *options_vn, + struct ecommunity *rt_export_list, uint32_t *med, uint32_t *label, + uint8_t type, uint8_t sub_type, int flags); #define RFAPI_AHR_NO_TUNNEL_SUBTLV 0x00000001 #define RFAPI_AHR_RFPOPT_IS_VNCTLV 0x00000002 /* hack! */ -#if 0 /* unused? */ +#if 0 /* unused? */ # define RFAPI_AHR_SET_PFX_TO_NEXTHOP 0x00000004 #endif -extern void -del_vnc_route ( - struct rfapi_descriptor *rfd, - struct peer *peer, - struct bgp *bgp, - safi_t safi, - struct prefix *p, - struct prefix_rd *prd, - uint8_t type, - uint8_t sub_type, - struct rfapi_nexthop *lnh, - int kill); +extern void del_vnc_route(struct rfapi_descriptor *rfd, struct peer *peer, + struct bgp *bgp, safi_t safi, struct prefix *p, + struct prefix_rd *prd, uint8_t type, uint8_t sub_type, + struct rfapi_nexthop *lnh, int kill); -extern int -rfapiCliGetPrefixAddr (struct vty *vty, const char *str, struct prefix *p); +extern int rfapiCliGetPrefixAddr(struct vty *vty, const char *str, + struct prefix *p); -extern int -rfapiGetVncLifetime (struct attr *attr, uint32_t * lifetime); +extern int rfapiGetVncLifetime(struct attr *attr, uint32_t *lifetime); -extern int -rfapiGetTunnelType (struct attr *attr, bgp_encap_types *type); +extern int rfapiGetTunnelType(struct attr *attr, bgp_encap_types *type); -extern int -rfapiGetVncTunnelUnAddr (struct attr *attr, struct prefix *p); +extern int rfapiGetVncTunnelUnAddr(struct attr *attr, struct prefix *p); -extern int -rfapi_reopen (struct rfapi_descriptor *rfd, struct bgp *bgp); +extern int rfapi_reopen(struct rfapi_descriptor *rfd, struct bgp *bgp); -extern void -vnc_import_bgp_add_rfp_host_route_mode_resolve_nve ( - struct bgp *bgp, - struct rfapi_descriptor *rfd, - struct prefix *prefix); +extern void vnc_import_bgp_add_rfp_host_route_mode_resolve_nve( + struct bgp *bgp, struct rfapi_descriptor *rfd, struct prefix *prefix); -extern void -vnc_import_bgp_del_rfp_host_route_mode_resolve_nve ( - struct bgp *bgp, - struct rfapi_descriptor *rfd, - struct prefix *prefix); +extern void vnc_import_bgp_del_rfp_host_route_mode_resolve_nve( + struct bgp *bgp, struct rfapi_descriptor *rfd, struct prefix *prefix); -extern void -rfapiFreeBgpTeaOptionChain (struct bgp_tea_options *p); +extern void rfapiFreeBgpTeaOptionChain(struct bgp_tea_options *p); -extern struct rfapi_vn_option * -rfapiVnOptionsDup (struct rfapi_vn_option *orig); +extern struct rfapi_vn_option *rfapiVnOptionsDup(struct rfapi_vn_option *orig); -extern struct rfapi_un_option * -rfapiUnOptionsDup (struct rfapi_un_option *orig); +extern struct rfapi_un_option *rfapiUnOptionsDup(struct rfapi_un_option *orig); -extern struct bgp_tea_options * -rfapiOptionsDup (struct bgp_tea_options *orig); +extern struct bgp_tea_options *rfapiOptionsDup(struct bgp_tea_options *orig); -extern int -rfapi_ip_addr_cmp (struct rfapi_ip_addr *a1, struct rfapi_ip_addr *a2); +extern int rfapi_ip_addr_cmp(struct rfapi_ip_addr *a1, + struct rfapi_ip_addr *a2); -extern uint32_t -rfp_cost_to_localpref (uint8_t cost); +extern uint32_t rfp_cost_to_localpref(uint8_t cost); -extern int -rfapi_set_autord_from_vn (struct prefix_rd *rd, struct rfapi_ip_addr *vn); +extern int rfapi_set_autord_from_vn(struct prefix_rd *rd, + struct rfapi_ip_addr *vn); -extern struct rfapi_nexthop * -rfapi_nexthop_new (struct rfapi_nexthop *copyme); +extern struct rfapi_nexthop *rfapi_nexthop_new(struct rfapi_nexthop *copyme); -extern void -rfapi_nexthop_free (void *goner); +extern void rfapi_nexthop_free(void *goner); extern struct rfapi_vn_option * -rfapi_vn_options_dup (struct rfapi_vn_option *existing); +rfapi_vn_options_dup(struct rfapi_vn_option *existing); -extern void -rfapi_un_options_free (struct rfapi_un_option *goner); +extern void rfapi_un_options_free(struct rfapi_un_option *goner); -extern void -rfapi_vn_options_free (struct rfapi_vn_option *goner); +extern void rfapi_vn_options_free(struct rfapi_vn_option *goner); /*------------------------------------------ * rfapi_extract_l2o * - * Find Layer 2 options in an option chain + * Find Layer 2 options in an option chain * - * input: + * input: * pHop option chain * * output: @@ -394,17 +361,16 @@ rfapi_vn_options_free (struct rfapi_vn_option *goner); * 1 no options found * --------------------------------------------*/ -extern int -rfapi_extract_l2o ( - struct bgp_tea_options *pHop, /* chain of options */ - struct rfapi_l2address_option *l2o); /* return extracted value */ +extern int rfapi_extract_l2o( + struct bgp_tea_options *pHop, /* chain of options */ + struct rfapi_l2address_option *l2o); /* return extracted value */ -/* +/* * compaitibility to old quagga_time call - * time_t value in terms of stabilised absolute time. + * time_t value in terms of stabilised absolute time. * replacement for POSIX time() */ -extern time_t rfapi_time (time_t *t); +extern time_t rfapi_time(time_t *t); DECLARE_MGROUP(RFAPI) DECLARE_MTYPE(RFAPI_CFG) @@ -441,10 +407,7 @@ DECLARE_MTYPE(RFAPI_MONITOR_ETH) * The advertised_prefixes[] array elements should be NULL to * have this function set them to newly-allocated radix trees. */ -extern int -rfapi_init_and_open( - struct bgp *bgp, - struct rfapi_descriptor *rfd, - struct rfapi_nve_group_cfg *rfg); +extern int rfapi_init_and_open(struct bgp *bgp, struct rfapi_descriptor *rfd, + struct rfapi_nve_group_cfg *rfg); #endif /* _QUAGGA_BGP_RFAPI_PRIVATE_H */ |