Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 247 insertions, 0 deletions

diff --git a/isisd/isis_circuit.h b/isisd/isis_circuit.h
new file mode 100644
index 0000000..7acde41
--- /dev/null
+++ b/isisd/isis_circuit.h
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * IS-IS Rout(e)ing protocol - isis_circuit.h
+ *
+ * Copyright (C) 2001,2002   Sampo Saaristo
+ *                           Tampere University of Technology
+ *                           Institute of Communications Engineering
+ */
+
+#ifndef ISIS_CIRCUIT_H
+#define ISIS_CIRCUIT_H
+
+#include "vty.h"
+#include "if.h"
+#include "qobj.h"
+#include "prefix.h"
+#include "ferr.h"
+#include "nexthop.h"
+
+#include "isis_constants.h"
+#include "isis_common.h"
+#include "isis_csm.h"
+
+DECLARE_HOOK(isis_if_new_hook, (struct interface *ifp), (ifp));
+
+struct isis_lsp;
+
+struct password {
+	struct password *next;
+	int len;
+	uint8_t *pass;
+};
+
+struct metric {
+	uint8_t metric_default;
+	uint8_t metric_error;
+	uint8_t metric_expense;
+	uint8_t metric_delay;
+};
+
+struct isis_bcast_info {
+	uint8_t snpa[ETH_ALEN];		      /* SNPA of this circuit */
+	char run_dr_elect[ISIS_LEVELS];       /* Should we run dr election ? */
+	struct event *t_run_dr[ISIS_LEVELS];  /* DR election thread */
+	struct event *t_send_lan_hello[ISIS_LEVELS];  /* send LAN IIHs in this
+							  thread */
+	struct list *adjdb[ISIS_LEVELS];	      /* adjacency dbs */
+	struct list *lan_neighs[ISIS_LEVELS];     /* list of lx neigh snpa */
+	char is_dr[ISIS_LEVELS];		  /* Are we level x DR ? */
+	uint8_t l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */
+	uint8_t l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */
+	struct event *t_refresh_pseudo_lsp[ISIS_LEVELS]; /* refresh pseudo-node
+							     LSPs */
+};
+
+struct isis_p2p_info {
+	struct isis_adjacency *neighbor;
+	struct event *t_send_p2p_hello; /* send P2P IIHs in this thread  */
+};
+
+struct isis_circuit_arg {
+	int level;
+	struct isis_circuit *circuit;
+};
+
+/*
+ * Hello padding types
+ */
+enum isis_hello_padding {
+	ISIS_HELLO_PADDING_ALWAYS,
+	ISIS_HELLO_PADDING_DISABLED,
+	ISIS_HELLO_PADDING_DURING_ADJACENCY_FORMATION
+};
+
+struct isis_circuit {
+	enum isis_circuit_state state;
+	uint8_t circuit_id;	  /* l1/l2 bcast CircuitID */
+	time_t last_uptime;
+	struct isis *isis;
+	struct isis_area *area;      /* back pointer to the area */
+	struct interface *interface; /* interface info from z */
+	int fd;			     /* IS-IS l1/2 socket */
+	int sap_length;		     /* SAP length for DLPI */
+	struct nlpids nlpids;
+	/*
+	 * Threads
+	 */
+	struct event *t_read;
+	struct event *t_send_csnp[ISIS_LEVELS];
+	struct event *t_send_psnp[ISIS_LEVELS];
+	struct isis_tx_queue *tx_queue;
+	struct isis_circuit_arg
+		level_arg[ISIS_LEVELS]; /* used as argument for threads */
+
+	/* there is no real point in two streams, just for programming kicker */
+	int (*rx)(struct isis_circuit *circuit, uint8_t *ssnpa);
+	struct stream *rcv_stream; /* Stream for receiving */
+	int (*tx)(struct isis_circuit *circuit, int level);
+	struct stream *snd_stream; /* Stream for sending */
+	int idx;		   /* idx in S[RM|SN] flags */
+#define CIRCUIT_T_UNKNOWN    0
+#define CIRCUIT_T_BROADCAST  1
+#define CIRCUIT_T_P2P        2
+#define CIRCUIT_T_LOOPBACK   3
+	int circ_type;		   /* type of the physical interface */
+	int circ_type_config;      /* config type of the physical interface */
+	union {
+		struct isis_bcast_info bc;
+		struct isis_p2p_info p2p;
+	} u;
+	uint8_t priority[ISIS_LEVELS]; /* l1/2 IS configured priority */
+	enum isis_hello_padding pad_hellos; /* type of Hello PDUs padding */
+	char ext_domain;    /* externalDomain   (boolean) */
+	int lsp_regenerate_pending[ISIS_LEVELS];
+	uint64_t lsp_error_counter;
+
+	/*
+	 * Configurables
+	 */
+	char *tag;		       /* area tag */
+	struct isis_passwd passwd;     /* Circuit rx/tx password */
+	int is_type_config;	       /* configured circuit is type */
+	int is_type;		       /* circuit is type == level of circuit
+					* differentiated from circuit type (media) */
+	uint32_t hello_interval[ISIS_LEVELS];   /* hello-interval in seconds */
+	uint16_t hello_multiplier[ISIS_LEVELS]; /* hello-multiplier */
+	uint16_t csnp_interval[ISIS_LEVELS];    /* csnp-interval in seconds */
+	uint16_t psnp_interval[ISIS_LEVELS];    /* psnp-interval in seconds */
+	uint8_t metric[ISIS_LEVELS];
+	uint32_t te_metric[ISIS_LEVELS];
+	struct isis_ext_subtlvs *ext; /* Extended parameters (TE + Adj SID */
+	int ip_router;  /* Route IP ? */
+	int is_passive; /* Is Passive ? */
+	struct list *mt_settings;   /* IS-IS MT Settings */
+	struct list *ip_addrs;      /* our IP addresses */
+	int ipv6_router;	    /* Route IPv6 ? */
+	struct list *ipv6_link;     /* our link local IPv6 addresses */
+	struct list *ipv6_non_link; /* our non-link local IPv6 addresses */
+	uint16_t upadjcount[ISIS_LEVELS];
+#define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01
+#define ISIS_CIRCUIT_IF_DOWN_FROM_Z 0x02
+	uint8_t flags;
+	bool disable_threeway_adj;
+	struct {
+		bool enabled;
+		char *profile;
+	} bfd_config;
+	struct ldp_sync_info *ldp_sync_info;
+	bool lfa_protection[ISIS_LEVELS];
+	bool rlfa_protection[ISIS_LEVELS];
+	uint32_t rlfa_max_metric[ISIS_LEVELS];
+	struct hash *lfa_excluded_ifaces[ISIS_LEVELS];
+	bool tilfa_protection[ISIS_LEVELS];
+	bool tilfa_node_protection[ISIS_LEVELS];
+	bool tilfa_link_fallback[ISIS_LEVELS];
+	/*
+	 * Counters as in 10589--11.2.5.9
+	 */
+	uint32_t adj_state_changes; /* changesInAdjacencyState */
+	uint32_t init_failures;     /* intialisationFailures */
+	uint32_t ctrl_pdus_rxed;    /* controlPDUsReceived */
+	uint32_t ctrl_pdus_txed;    /* controlPDUsSent */
+	uint32_t desig_changes[ISIS_LEVELS]; /* lanLxDesignatedIntermediateSystemChanges
+					      */
+	uint32_t rej_adjacencies; /* rejectedAdjacencies */
+	/*
+	 * Counters as in ietf-isis@2019-09-09.yang
+	 */
+	uint32_t id_len_mismatches; /* id-len-mismatch */
+	uint32_t max_area_addr_mismatches; /* max-area-addresses-mismatch */
+	uint32_t auth_type_failures; /*authentication-type-fails */
+	uint32_t auth_failures; /* authentication-fails */
+
+	uint32_t snmp_id; /* Circuit id in snmp */
+
+	uint32_t snmp_adj_idx_gen; /* Create unique id for adjacency on creation
+				    */
+	struct list *snmp_adj_list; /* List in id order */
+
+	QOBJ_FIELDS;
+};
+DECLARE_QOBJ_TYPE(isis_circuit);
+
+void isis_circuit_init(void);
+struct isis_circuit *isis_circuit_new(struct interface *ifp, const char *tag);
+void isis_circuit_del(struct isis_circuit *circuit);
+struct isis_circuit *circuit_scan_by_ifp(struct interface *ifp);
+void isis_circuit_configure(struct isis_circuit *circuit,
+			    struct isis_area *area);
+void isis_circuit_deconfigure(struct isis_circuit *circuit,
+			      struct isis_area *area);
+void isis_circuit_if_add(struct isis_circuit *circuit, struct interface *ifp);
+void isis_circuit_if_del(struct isis_circuit *circuit, struct interface *ifp);
+void isis_circuit_if_bind(struct isis_circuit *circuit, struct interface *ifp);
+void isis_circuit_if_unbind(struct isis_circuit *circuit,
+			    struct interface *ifp);
+void isis_circuit_add_addr(struct isis_circuit *circuit,
+			   struct connected *conn);
+void isis_circuit_del_addr(struct isis_circuit *circuit,
+			   struct connected *conn);
+void isis_circuit_prepare(struct isis_circuit *circuit);
+int isis_circuit_up(struct isis_circuit *circuit);
+void isis_circuit_down(struct isis_circuit *);
+void circuit_update_nlpids(struct isis_circuit *circuit);
+void isis_circuit_print_vty(struct isis_circuit *circuit, struct vty *vty,
+			    char detail);
+void isis_circuit_print_json(struct isis_circuit *circuit,
+			     struct json_object *json, char detail);
+size_t isis_circuit_pdu_size(struct isis_circuit *circuit);
+void isis_circuit_switchover_routes(struct isis_circuit *circuit, int family,
+				    union g_addr *nexthop_ip,
+				    ifindex_t ifindex);
+void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream);
+
+void isis_circuit_af_set(struct isis_circuit *circuit, bool ip_router,
+			 bool ipv6_router);
+ferr_r isis_circuit_passive_set(struct isis_circuit *circuit, bool passive);
+void isis_circuit_is_type_set(struct isis_circuit *circuit, int is_type);
+void isis_circuit_circ_type_set(struct isis_circuit *circuit, int circ_type);
+
+ferr_r isis_circuit_metric_set(struct isis_circuit *circuit, int level,
+			       int metric);
+
+ferr_r isis_circuit_passwd_unset(struct isis_circuit *circuit);
+ferr_r isis_circuit_passwd_set(struct isis_circuit *circuit,
+			       uint8_t passwd_type, const char *passwd);
+ferr_r isis_circuit_passwd_cleartext_set(struct isis_circuit *circuit,
+					 const char *passwd);
+ferr_r isis_circuit_passwd_hmac_md5_set(struct isis_circuit *circuit,
+					const char *passwd);
+
+int isis_circuit_mt_enabled_set(struct isis_circuit *circuit, uint16_t mtid,
+				bool enabled);
+
+#ifdef FABRICD
+DECLARE_HOOK(isis_circuit_config_write,
+	    (struct isis_circuit *circuit, struct vty *vty),
+	    (circuit, vty));
+#endif
+
+DECLARE_HOOK(isis_circuit_add_addr_hook, (struct isis_circuit *circuit),
+	     (circuit));
+
+DECLARE_HOOK(isis_circuit_new_hook, (struct isis_circuit *circuit), (circuit));
+DECLARE_HOOK(isis_circuit_del_hook, (struct isis_circuit *circuit), (circuit));
+
+#endif /* _ZEBRA_ISIS_CIRCUIT_H */