lib: Add new if_link_params structure
This new structure is the basis to get new link parameters for
Traffic Engineering from Zebra/interface layer to OSPFD and ISISD
for the support of Traffic Engineering
* lib/if.[c,h]: link parameters struture and get/set functions
* lib/command.[c,h]: creation of a new link-node
* lib/zclient.[c,h]: modification to the ZBUS message to convey the
link parameters structure
* lib/zebra.h: New ZBUS message
* lib/memtypes.c: Add new memory type for Traffic Engineering support
Signed-off-by: Olivier Dugeon <olivier.dugeon@orange.com>
diff --git a/lib/if.h b/lib/if.h
index b3d14ba..9796a4d 100644
--- a/lib/if.h
+++ b/lib/if.h
@@ -131,6 +131,63 @@
};
#endif /* HAVE_PROC_NET_DEV */
+/* Here are "non-official" architectural constants. */
+#define TE_EXT_MASK 0x0FFFFFFF
+#define TE_EXT_ANORMAL 0x80000000
+#define LOSS_PRECISION 0.000003
+#define TE_KILO_BIT 1000
+#define TE_BYTE 8
+#define DEFAULT_BANDWIDTH 10000
+#define MAX_CLASS_TYPE 8
+#define MAX_PKT_LOSS 50.331642
+
+/* Link Parameters Status: 0: unset, 1: set, */
+#define LP_UNSET 0x0000
+#define LP_TE 0x0001
+#define LP_MAX_BW 0x0002
+#define LP_MAX_RSV_BW 0x0004
+#define LP_UNRSV_BW 0x0008
+#define LP_ADM_GRP 0x0010
+#define LP_RMT_AS 0x0020
+#define LP_DELAY 0x0040
+#define LP_MM_DELAY 0x0080
+#define LP_DELAY_VAR 0x0100
+#define LP_PKT_LOSS 0x0200
+#define LP_RES_BW 0x0400
+#define LP_AVA_BW 0x0800
+#define LP_USE_BW 0x1000
+
+#define IS_PARAM_UNSET(lp, st) !(lp->lp_status & st)
+#define IS_PARAM_SET(lp, st) (lp->lp_status & st)
+#define IS_LINK_PARAMS_SET(lp) (lp->lp_status != LP_UNSET)
+
+#define SET_PARAM(lp, st) (lp->lp_status) |= (st)
+#define UNSET_PARAM(lp, st) (lp->lp_status) &= ~(st)
+#define RESET_LINK_PARAM(lp) (lp->lp_status = LP_UNSET)
+
+/* Link Parameters for Traffic Engineering */
+struct if_link_params {
+ u_int32_t lp_status; /* Status of Link Parameters: */
+ u_int32_t te_metric; /* Traffic Engineering metric */
+ float max_bw; /* Maximum Bandwidth */
+ float max_rsv_bw; /* Maximum Reservable Bandwidth */
+ float unrsv_bw[MAX_CLASS_TYPE]; /* Unreserved Bandwidth per Class Type (8) */
+ u_int32_t admin_grp; /* Administrative group */
+ u_int32_t rmt_as; /* Remote AS number */
+ struct in_addr rmt_ip; /* Remote IP address */
+ u_int32_t av_delay; /* Link Average Delay */
+ u_int32_t min_delay; /* Link Min Delay */
+ u_int32_t max_delay; /* Link Max Delay */
+ u_int32_t delay_var; /* Link Delay Variation */
+ float pkt_loss; /* Link Packet Loss */
+ float res_bw; /* Residual Bandwidth */
+ float ava_bw; /* Available Bandwidth */
+ float use_bw; /* Utilized Bandwidth */
+};
+
+#define INTERFACE_LINK_PARAMS_SIZE sizeof(struct if_link_params)
+#define HAS_LINK_PARAMS(ifp) ((ifp)->link_params != NULL)
+
/* Interface structure */
struct interface
{
@@ -172,6 +229,9 @@
/* interface bandwidth, kbits */
unsigned int bandwidth;
+ /* Link parameters for Traffic Engineering */
+ struct if_link_params *link_params;
+
/* description of the interface. */
char *desc;
@@ -389,6 +449,10 @@
extern char *if_indextoname (ifindex_t, char *);
#endif
+/* link parameters */
+struct if_link_params *if_link_params_get (struct interface *);
+void if_link_params_free (struct interface *);
+
/* Exported variables. */
extern struct list *iflist;
extern struct cmd_element interface_desc_cmd;