diff options
Diffstat (limited to 'vnet/vnet/ip/ip6_hop_by_hop.h')
| -rw-r--r-- | vnet/vnet/ip/ip6_hop_by_hop.h | 102 |
1 files changed, 87 insertions, 15 deletions
diff --git a/vnet/vnet/ip/ip6_hop_by_hop.h b/vnet/vnet/ip/ip6_hop_by_hop.h index dae58619e24..7d157cf55e7 100644 --- a/vnet/vnet/ip/ip6_hop_by_hop.h +++ b/vnet/vnet/ip/ip6_hop_by_hop.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015 Cisco and/or its affiliates. + * Copyright (c) 2016 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: @@ -15,10 +15,30 @@ #ifndef __included_ip6_hop_by_hop_ioam_h__ #define __included_ip6_hop_by_hop_ioam_h__ -#include <vnet/ip/ip6_hop_by_hop.h> #include <vnet/ip/ip6_hop_by_hop_packet.h> #include <vnet/ip/ip.h> + +#define MAX_IP6_HBH_OPTION 256 + +/* To determine whether a node is decap MS bit is set */ +#define IOAM_DECAP_BIT 0x80000000 + +#define IOAM_DEAP_ENABLED(opaque_data) (opaque_data & IOAM_DECAP_BIT) + +#define IOAM_SET_DECAP(opaque_data) \ + (opaque_data |= IOAM_DECAP_BIT) + +#define IOAM_MASK_DECAP_BIT(x) (x & ~IOAM_DECAP_BIT) + +/* + * Stores the run time flow data of hbh options + */ +typedef struct { + u32 ctx[MAX_IP6_HBH_OPTION]; + u8 flow_name[64]; +} flow_data_t; + typedef struct { /* The current rewrite we're using */ u8 * rewrite; @@ -43,10 +63,11 @@ typedef struct { /* Pot option */ u8 has_pot_option; -#define PPC_NONE 0 -#define PPC_ENCAP 1 -#define PPC_DECAP 2 - u8 has_ppc_option; + /* Per Packet Counter option */ + u8 has_seqno_option; + + /* Enabling analyis of iOAM data on decap node */ + u8 has_analyse_option; #define TSP_SECONDS 0 #define TSP_MILLISECONDS 1 @@ -54,11 +75,16 @@ typedef struct { #define TSP_NANOSECONDS 3 /* Array of function pointers to ADD and POP HBH option handling routines */ - u8 options_size[256]; - int (*add_options[256])(u8 *rewrite_string, u8 *rewrite_size); - int (*pop_options[256])(ip6_header_t *ip, ip6_hop_by_hop_option_t *opt); - int (*get_sizeof_options[256])(u32 *rewrite_size); - + u8 options_size[MAX_IP6_HBH_OPTION]; + int (*add_options[MAX_IP6_HBH_OPTION])(u8 *rewrite_string, u8 *rewrite_size); + int (*pop_options[MAX_IP6_HBH_OPTION])(vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt); + int (*get_sizeof_options[MAX_IP6_HBH_OPTION])(u32 *rewrite_size); + int (*config_handler[MAX_IP6_HBH_OPTION]) (void *data, u8 disable); + + /* Array of function pointers to handle hbh options being used with classifier */ + u32 (*flow_handler[MAX_IP6_HBH_OPTION])(u32 flow_ctx, u8 add); + flow_data_t *flows; + /* convenience */ vlib_main_t * vlib_main; vnet_main_t * vnet_main; @@ -67,9 +93,11 @@ typedef struct { extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main; extern u8 * format_path_map(u8 * s, va_list * args); + extern clib_error_t * ip6_ioam_enable(int has_trace_option, int has_pot_option, - int has_e2e_option); + int has_seqno_option, int has_analyse_option); + extern int ip6_ioam_set_destination (ip6_address_t *addr, u32 mask_width, u32 vrf_id, int is_add, int is_pop, int is_none); @@ -107,7 +135,8 @@ int ip6_hbh_add_register_option (u8 option, int ip6_hbh_add_unregister_option (u8 option); int ip6_hbh_pop_register_option (u8 option, - int options(ip6_header_t *ip, ip6_hop_by_hop_option_t *opt)); + int options(vlib_buffer_t *b, + ip6_header_t *ip, ip6_hop_by_hop_option_t *opt)); int ip6_hbh_pop_unregister_option (u8 option); int @@ -115,6 +144,49 @@ ip6_hbh_get_sizeof_register_option (u8 option, int get_sizeof_hdr_options(u32 *rewrite_size)); int -ip6_ioam_set_rewrite (u8 ** rwp, int has_trace_option, - int has_pot_option, int has_ppc_option); +ip6_ioam_set_rewrite (u8 **rwp, int has_trace_option, + int has_pot_option, int has_seq_no); + +int +ip6_hbh_config_handler_register (u8 option, + int config_handler(void *data, u8 disable)); + +int ip6_hbh_config_handler_unregister (u8 option); + +int ip6_hbh_flow_handler_register(u8 option, + u32 ioam_flow_handler(u32 flow_ctx, u8 add)); + +int ip6_hbh_flow_handler_unregister(u8 option); + +u8 * get_flow_name_from_flow_ctx(u32 flow_ctx); + +static inline flow_data_t * get_flow (u32 index) +{ + flow_data_t *flow = NULL; + ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main; + + if (pool_is_free_index (hm->flows, index)) + return NULL; + + flow = pool_elt_at_index (hm->flows, index); + return flow; +} + +static inline u32 get_flow_data_from_flow_ctx (u32 flow_ctx, u8 option) +{ + flow_data_t *flow = NULL; + ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main; + u32 index; + + index = IOAM_MASK_DECAP_BIT(flow_ctx); + //flow = pool_elt_at_index (hm->flows, index); + flow = &hm->flows[index]; + return (flow->ctx[option]); +} + +static inline u8 is_seqno_enabled (void) +{ + return (ip6_hop_by_hop_ioam_main.has_seqno_option); +} + #endif /* __included_ip6_hop_by_hop_ioam_h__ */ |