diff options
Diffstat (limited to 'src/vnet/dpo/mpls_label_dpo.h')
| -rw-r--r-- | src/vnet/dpo/mpls_label_dpo.h | 65 |
1 files changed, 55 insertions, 10 deletions
diff --git a/src/vnet/dpo/mpls_label_dpo.h b/src/vnet/dpo/mpls_label_dpo.h index 8494d26b495..98c88f7d812 100644 --- a/src/vnet/dpo/mpls_label_dpo.h +++ b/src/vnet/dpo/mpls_label_dpo.h @@ -20,11 +20,47 @@ #include <vnet/mpls/packet.h> #include <vnet/dpo/dpo.h> +/** + * Flags present on an MPLS label sourced path-extension + */ +typedef enum mpls_label_dpo_attr_t_ +{ + /** + * Do not decrement the TTL of IP packet during imposition + */ + MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR, + MPLS_LABEL_DPO_ATTR_UNIFORM_MODE, +} mpls_label_dpo_attr_t; + +#define MPLS_LABEL_DPO_ATTR_MAX (MPLS_LABEL_DPO_ATTR_UNIFORM_MODE+1) + +typedef enum mpls_label_dpo_flags_t_ +{ + MPLS_LABEL_DPO_FLAG_NONE = 0, + MPLS_LABEL_DPO_FLAG_NO_IP_TTL_DECR = (1 << MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR), + MPLS_LABEL_DPO_FLAG_UNIFORM_MODE = (1 << MPLS_LABEL_DPO_ATTR_UNIFORM_MODE), +} __attribute__ ((packed)) mpls_label_dpo_flags_t; + +#define MPLS_LABEL_DPO_ATTR_NAMES { \ + [MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR] = "no-ip-tll-decr", \ + [MPLS_LABEL_DPO_ATTR_UNIFORM_MODE] = "uniform-mode", \ +} + +#define FOR_EACH_MPLS_LABEL_DPO_ATTR(_item) \ + for (_item = MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR; \ + _item <= MPLS_LABEL_DPO_ATTR_UNIFORM_MODE; \ + _item++) + +/** + * Format the flags variable + */ +extern u8* format_mpls_label_dpo_flags(u8 *s, va_list *args); /** * Maximum number of labels in one DPO */ #define MPLS_LABEL_DPO_MAX_N_LABELS 12 + /** * A representation of an MPLS label for imposition in the data-path */ @@ -47,9 +83,14 @@ typedef struct mpls_label_dpo_t dpo_proto_t mld_payload_proto; /** + * Flags + */ + mpls_label_dpo_flags_t mld_flags; + + /** * Size of the label stack */ - u16 mld_n_labels; + u8 mld_n_labels; /** * Cached amount of header bytes to paint @@ -75,18 +116,17 @@ STATIC_ASSERT((sizeof(mpls_label_dpo_t) <= CLIB_CACHE_LINE_BYTES), * * @param label_stack The stack if labels to impose, outer most label first * @param eos The inner most label's EOS bit - * @param ttl The inner most label's TTL bit - * @param exp The inner most label's EXP bit * @param payload_proto The ptocool of the payload packets that will * be imposed with this label header. - * @param dpo The parent of the created MPLS label object + * @param parent The parent of the created MPLS label object + * @param dpo The MPLS label DPO created */ -extern index_t mpls_label_dpo_create(mpls_label_t *label_stack, - mpls_eos_bit_t eos, - u8 ttl, - u8 exp, - dpo_proto_t payload_proto, - const dpo_id_t *dpo); +extern void mpls_label_dpo_create(fib_mpls_label_t *label_stack, + mpls_eos_bit_t eos, + dpo_proto_t payload_proto, + mpls_label_dpo_flags_t flags, + const dpo_id_t *paremt, + dpo_id_t *dpo); extern u8* format_mpls_label_dpo(u8 *s, va_list *args); @@ -104,4 +144,9 @@ mpls_label_dpo_get (index_t index) extern void mpls_label_dpo_module_init(void); +/* + * test function to get the registered DPO type for the flags + */ +extern dpo_type_t mpls_label_dpo_get_type(mpls_label_dpo_flags_t flags); + #endif |