BIER_HDR_LEN_256,
BIER_HDR_LEN_512,
BIER_HDR_LEN_1024,
+ /**
+ * Bit-string lengths greater than 1024 are not supported due to the
+ * limited about pf space available in a vlib_buffer_t to prepend a
+ * BIER header at imposition.
+ */
BIER_HDR_LEN_2048,
BIER_HDR_LEN_4096,
BIER_HDR_LEN_INVALID,
*/
typedef u8 bier_bit_mask_bucket_t;
-/**
- * A BIER Bit-String value of length 64 bits.
- */
-typedef struct bier_bit_mask_64_t_ {
- bier_bit_mask_bucket_t bits[BIER_HDR_BUCKETS_64];
-} bier_bit_mask_64_t;
-
-/**
- * A BIER Bit-String value of length 128 bits.
- */
-typedef struct bier_bit_mask_128_t_ {
- bier_bit_mask_bucket_t bits[BIER_HDR_BUCKETS_128];
-} bier_bit_mask_128_t;
-
-/**
- * A BIER Bit-String value of length 256 bits.
- */
-typedef struct bier_bit_mask_256_t_ {
- bier_bit_mask_bucket_t bits[BIER_HDR_BUCKETS_256];
-} bier_bit_mask_256_t;
-
-/**
- * A BIER Bit-String value of length 512 bits.
- */
-typedef struct bier_bit_mask_512_t_ {
- bier_bit_mask_bucket_t bits[BIER_HDR_BUCKETS_512];
-} bier_bit_mask_512_t;
-
-/**
- * A BIER Bit-String value of length 1024 bits.
- */
-typedef struct bier_bit_mask_1024_t_ {
- bier_bit_mask_bucket_t bits[BIER_HDR_BUCKETS_1024];
-} bier_bit_mask_1024_t;
-
-/**
- * A BIER Bit-String value of length 2048 bits.
- */
-typedef struct bier_bit_mask_2048_t_ {
- bier_bit_mask_bucket_t bits[BIER_HDR_BUCKETS_2048];
-} bier_bit_mask_2048_t;
-
-/**
- * A BIER Bit-String value of length 4096 bits.
- */
-typedef struct bier_bit_mask_4096_t_ {
- bier_bit_mask_bucket_t bits[BIER_HDR_BUCKETS_4096];
-} bier_bit_mask_4096_t;
-
-
/**
* 256 bits = 32 bytes
*/
bier_bit_mask_bucket_t *bbs_buckets;
} bier_bit_string_t;
-/**
- * A BIER Bit-mask value
- *
- * The size of this mask represents this platforms BIER capabilities
- */
-typedef bier_bit_mask_256_t bier_bit_mask_t;
-
/**
* A bit positon
* as assigned to egress PEs
#define BIER_ERR_PANIC 3
typedef int bier_rc;
+/**
+ * The BIER universal 'label'
+ */
+typedef u32 bier_bift_id_t;
+
+/**
+ * An invalid value for the BIFT ID
+ * all ones implies a BSL that's invalid.
+ */
+#define BIER_BIFT_ID_INVALID (~0)
+
+extern u16 bier_bfit_id_get_sub_domain(bier_bift_id_t bift_id);
+extern u16 bier_bfit_id_get_set(bier_bift_id_t bift_id);
+extern bier_hdr_proto_id_t bier_bift_id_get_bit_string_length(bier_bift_id_t bift_id);
+
+/**
+ * Encode a BIFT-ID as per draft-wijnandsxu-bier-non-mpls-bift-encoding-00.txt
+ */
+extern bier_bift_id_t bier_bift_id_encode(bier_table_set_id_t set,
+ bier_table_sub_domain_id_t sd,
+ bier_hdr_len_id_t bsl);
+extern void bier_bift_id_decode(bier_bift_id_t id,
+ bier_table_set_id_t *set,
+ bier_table_sub_domain_id_t *sd,
+ bier_hdr_len_id_t *bsl);
+
+extern u8* format_bier_bift_id(u8 *s, va_list *ap);
+
#endif /* __BIER_TYPES_H__ */