diff options
Diffstat (limited to 'plugins/ioam-plugin/ioam')
| -rw-r--r-- | plugins/ioam-plugin/ioam/encap/ip6_ioam_pot.c | 4 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c | 391 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-trace/trace.api | 65 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-trace/trace_all_api_h.h | 16 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-trace/trace_api.c | 210 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-trace/trace_msg_enum.h | 28 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-trace/trace_test.c | 251 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-trace/trace_util.c | 221 | ||||
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-trace/trace_util.h | 250 |
9 files changed, 1434 insertions, 2 deletions
diff --git a/plugins/ioam-plugin/ioam/encap/ip6_ioam_pot.c b/plugins/ioam-plugin/ioam/encap/ip6_ioam_pot.c index ec85ea72e5f..9daea9c058f 100644 --- a/plugins/ioam-plugin/ioam/encap/ip6_ioam_pot.c +++ b/plugins/ioam-plugin/ioam/encap/ip6_ioam_pot.c @@ -199,10 +199,10 @@ ip6_hbh_ioam_proof_of_transit_pop_handler (ip6_header_t *ip, return (rv); } -int ip6_hop_by_hop_ioam_pot_rewrite_handler (u8 *rewrite_string, u8 rewrite_size) +int ip6_hop_by_hop_ioam_pot_rewrite_handler (u8 *rewrite_string, u8 *rewrite_size) { ioam_pot_option_t * pot_option; - if (rewrite_string && rewrite_size == sizeof(ioam_pot_option_t)) + if (rewrite_string && *rewrite_size == sizeof(ioam_pot_option_t)) { pot_option = (ioam_pot_option_t *)rewrite_string; pot_option->hdr.type = HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT diff --git a/plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c b/plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c new file mode 100644 index 00000000000..e151a96c010 --- /dev/null +++ b/plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c @@ -0,0 +1,391 @@ +/* + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vppinfra/error.h> + +#include <vnet/ip/ip6.h> +#include <vnet/ip/ip6_hop_by_hop.h> +#include <vnet/ip/ip6_hop_by_hop_packet.h> + +#include <vppinfra/hash.h> +#include <vppinfra/error.h> +#include <vppinfra/elog.h> + +#include <ioam/lib-trace/trace_util.h> + +/* Timestamp precision multipliers for seconds, milliseconds, microseconds + * and nanoseconds respectively. + */ +static f64 trace_tsp_mul[4] = { 1, 1e3, 1e6, 1e9 }; + +typedef union +{ + u64 as_u64; + u32 as_u32[2]; +} time_u64_t; + + +extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main; +extern ip6_main_t ip6_main; + +#define foreach_ip6_hop_by_hop_ioam_trace_stats \ + _(PROCESSED, "Pkts with ip6 hop-by-hop trace options") \ + _(PROFILE_MISS, "Pkts with ip6 hop-by-hop trace options but no profile set") \ + _(PASSED, "Pkts with TRACE in Policy") \ + _(FAILED, "Pkts with TRACE out of Policy") + +static char *ip6_hop_by_hop_ioam_trace_stats_strings[] = { +#define _(sym,string) string, + foreach_ip6_hop_by_hop_ioam_trace_stats +#undef _ +}; + +typedef enum +{ +#define _(sym,str) IP6_IOAM_TRACE_##sym, + foreach_ip6_hop_by_hop_ioam_trace_stats +#undef _ + IP6_IOAM_TRACE_N_STATS, +} ip6_ioam_trace_stats_t; + + +typedef struct +{ + /* stats */ + u64 counters[ARRAY_LEN (ip6_hop_by_hop_ioam_trace_stats_strings)]; + + /* convenience */ + vlib_main_t *vlib_main; + vnet_main_t *vnet_main; +} ip6_hop_by_hop_ioam_trace_main_t; + +ip6_hop_by_hop_ioam_trace_main_t ip6_hop_by_hop_ioam_trace_main; + +always_inline void +ip6_ioam_trace_stats_increment_counter (u32 counter_index, u64 increment) +{ + ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main; + + hm->counters[counter_index] += increment; +} + + +static u8 * +format_ioam_data_list_element (u8 * s, va_list * args) +{ + u32 *elt = va_arg (*args, u32 *); + u8 *trace_type_p = va_arg (*args, u8 *); + u8 trace_type = *trace_type_p; + + + if (trace_type & BIT_TTL_NODEID) + { + u32 ttl_node_id_host_byte_order = clib_net_to_host_u32 (*elt); + s = format (s, "ttl 0x%x node id 0x%x ", + ttl_node_id_host_byte_order >> 24, + ttl_node_id_host_byte_order & 0x00FFFFFF); + + elt++; + } + + if (trace_type & BIT_ING_INTERFACE && trace_type & BIT_ING_INTERFACE) + { + u32 ingress_host_byte_order = clib_net_to_host_u32 (*elt); + s = format (s, "ingress 0x%x egress 0x%x ", + ingress_host_byte_order >> 16, + ingress_host_byte_order & 0xFFFF); + elt++; + } + + if (trace_type & BIT_TIMESTAMP) + { + u32 ts_in_host_byte_order = clib_net_to_host_u32 (*elt); + s = format (s, "ts 0x%x \n", ts_in_host_byte_order); + elt++; + } + + if (trace_type & BIT_APPDATA) + { + u32 appdata_in_host_byte_order = clib_net_to_host_u32 (*elt); + s = format (s, "app 0x%x ", appdata_in_host_byte_order); + elt++; + } + + return s; +} + + +int +ioam_trace_get_sizeof_handler (u32 * result) +{ + u16 size = 0; + u8 trace_data_size = 0; + trace_profile *profile = NULL; + + *result = 0; + + profile = trace_profile_find (); + + if (PREDICT_FALSE (!profile)) + { + ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1); + return (-1); + } + + trace_data_size = fetch_trace_data_size (profile->trace_type); + if (PREDICT_FALSE (trace_data_size == 0)) + return VNET_API_ERROR_INVALID_VALUE; + + if (PREDICT_FALSE (profile->num_elts * trace_data_size > 254)) + return VNET_API_ERROR_INVALID_VALUE; + + size += profile->num_elts * trace_data_size; + *result = size; + + return 0; +} + + + +int +ip6_hop_by_hop_ioam_trace_rewrite_handler (u8 * rewrite_string, + u8 * rewrite_size) +{ + ioam_trace_option_t *trace_option = NULL; + u8 trace_data_size = 0; + u8 trace_option_elts = 0; + trace_profile *profile = NULL; + + + profile = trace_profile_find (); + + if (PREDICT_FALSE (!profile)) + { + ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1); + return (-1); + } + + if (PREDICT_FALSE (!rewrite_string)) + return -1; + + trace_option_elts = profile->num_elts; + trace_data_size = fetch_trace_data_size (profile->trace_type); + trace_option = (ioam_trace_option_t *) rewrite_string; + trace_option->hdr.type = HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST | + HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE; + trace_option->hdr.length = 2 /*ioam_trace_type,data_list_elts_left */ + + trace_option_elts * trace_data_size; + trace_option->ioam_trace_type = profile->trace_type & TRACE_TYPE_MASK; + trace_option->data_list_elts_left = trace_option_elts; + *rewrite_size = + sizeof (ioam_trace_option_t) + (trace_option_elts * trace_data_size); + + return 0; +} + + +int +ip6_hbh_ioam_trace_data_list_handler (vlib_buffer_t * b, ip6_header_t * ip, + ip6_hop_by_hop_option_t * opt) +{ + ip6_main_t *im = &ip6_main; + ip_lookup_main_t *lm = &im->lookup_main; + ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; + u8 elt_index = 0; + ioam_trace_option_t *trace = (ioam_trace_option_t *) opt; + u32 adj_index = vnet_buffer (b)->ip.adj_index[VLIB_TX]; + ip_adjacency_t *adj = ip_get_adjacency (lm, adj_index); + time_u64_t time_u64; + u32 *elt; + int rv = 0; + trace_profile *profile = NULL; + + + profile = trace_profile_find (); + + if (PREDICT_FALSE (!profile)) + { + ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1); + return (-1); + } + + + time_u64.as_u64 = 0; + + if (PREDICT_TRUE (trace->data_list_elts_left)) + { + trace->data_list_elts_left--; + /* fetch_trace_data_size returns in bytes. Convert it to 4-bytes + * to skip to this node's location. + */ + elt_index = + trace->data_list_elts_left * + fetch_trace_data_size (trace->ioam_trace_type) / 4; + elt = &trace->elts[elt_index]; + if (trace->ioam_trace_type & BIT_TTL_NODEID) + { + *elt = + clib_host_to_net_u32 ((ip->hop_limit << 24) | profile->node_id); + elt++; + } + + if (trace->ioam_trace_type & BIT_ING_INTERFACE) + { + *elt = + (vnet_buffer (b)->sw_if_index[VLIB_RX] & 0xFFFF) << 16 | + (adj->rewrite_header.sw_if_index & 0xFFFF); + *elt = clib_host_to_net_u32 (*elt); + elt++; + } + + if (trace->ioam_trace_type & BIT_TIMESTAMP) + { + /* Send least significant 32 bits */ + f64 time_f64 = + (f64) (((f64) hm->unix_time_0) + + (vlib_time_now (hm->vlib_main) - hm->vlib_time_0)); + + time_u64.as_u64 = time_f64 * trace_tsp_mul[profile->trace_tsp]; + *elt = clib_host_to_net_u32 (time_u64.as_u32[0]); + elt++; + } + + if (trace->ioam_trace_type & BIT_APPDATA) + { + /* $$$ set elt0->app_data */ + *elt = clib_host_to_net_u32 (profile->app_data); + elt++; + } + ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PASSED, 1); + } + return (rv); +} + +u8 * +ip6_hbh_ioam_trace_data_list_trace_handler (u8 * s, + ip6_hop_by_hop_option_t * opt) +{ + ioam_trace_option_t *trace; + u8 trace_data_size_in_words = 0; + u32 *elt; + int elt_index = 0; + + trace = (ioam_trace_option_t *) opt; +#if 0 + s = + format (s, " Trace Type 0x%x , %d elts left ts msb(s) 0x%x\n", + trace->ioam_trace_type, trace->data_list_elts_left, + t->timestamp_msbs); +#endif + s = + format (s, " Trace Type 0x%x , %d elts left\n", trace->ioam_trace_type, + trace->data_list_elts_left); + trace_data_size_in_words = + fetch_trace_data_size (trace->ioam_trace_type) / 4; + elt = &trace->elts[0]; + while ((u8 *) elt < ((u8 *) (&trace->elts[0]) + trace->hdr.length - 2 + /* -2 accounts for ioam_trace_type,elts_left */ )) + { + s = format (s, " [%d] %U\n", elt_index, + format_ioam_data_list_element, + elt, &trace->ioam_trace_type); + elt_index++; + elt += trace_data_size_in_words; + } + return (s); +} + + +static clib_error_t * +ip6_show_ioam_trace_cmd_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main; + u8 *s = 0; + int i = 0; + + for (i = 0; i < IP6_IOAM_TRACE_N_STATS; i++) + { + s = + format (s, " %s - %lu\n", ip6_hop_by_hop_ioam_trace_stats_strings[i], + hm->counters[i]); + } + + vlib_cli_output (vm, "%v", s); + vec_free (s); + return 0; +} + + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (ip6_show_ioam_trace_cmd, static) = { + .path = "show ioam trace", + .short_help = "iOAM trace statistics", + .function = ip6_show_ioam_trace_cmd_fn, +}; +/* *INDENT-ON* */ + + +static clib_error_t * +ip6_hop_by_hop_ioam_trace_init (vlib_main_t * vm) +{ + ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main; + clib_error_t *error; + + if ((error = vlib_call_init_function (vm, ip_main_init))) + return (error); + + if ((error = vlib_call_init_function (vm, ip6_lookup_init))) + return error; + + if ((error = vlib_call_init_function (vm, ip6_hop_by_hop_ioam_init))) + return (error); + + hm->vlib_main = vm; + hm->vnet_main = vnet_get_main (); + memset (hm->counters, 0, sizeof (hm->counters)); + + + if (ip6_hbh_register_option + (HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST, + ip6_hbh_ioam_trace_data_list_handler, + ip6_hbh_ioam_trace_data_list_trace_handler) < 0) + return (clib_error_create + ("registration of HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST failed")); + + + if (ip6_hbh_add_register_option (HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST, + sizeof (ioam_trace_option_t), + ip6_hop_by_hop_ioam_trace_rewrite_handler) + < 0) + return (clib_error_create + ("registration of HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST for rewrite failed")); + + + return (0); +} + +VLIB_INIT_FUNCTION (ip6_hop_by_hop_ioam_trace_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace.api b/plugins/ioam-plugin/ioam/lib-trace/trace.api new file mode 100644 index 00000000000..b5886b2a275 --- /dev/null +++ b/plugins/ioam-plugin/ioam/lib-trace/trace.api @@ -0,0 +1,65 @@ +/* Hey Emacs use -*- mode: C -*- */ +/* + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + +/** \brief iOAM6 Trace - Set the iOAM6 trace profile + @param id - id of the profile + @param trace_type - Type of trace requested + @param num_elts - Number of trace elements to be inserted + @param node_id - Trace Node ID + @param trace_tsp- Timestamp resolution + @param app_data - Application specific opaque +*/ +define trace_profile_add { + u32 client_index; + u32 context; + u8 trace_type; + u8 num_elts; + u32 node_id; + u32 trace_tsp; + u32 app_data; +}; + +/** \brief Trace profile add / del response + @param context - sender context, to match reply w/ request + @param retval - return value for request +*/ +define trace_profile_add_reply { + u32 context; + i32 retval; +}; + + + +/** \brief Delete trace Profile + @param client_index - opaque cookie to identify the sender + @param context - sender context, to match reply w/ request + @param list_name_len - length of the name of the profile list + @param list_name - name of profile list to delete +*/ +define trace_profile_del { + u32 client_index; + u32 context; +}; + +/** \brief Trace profile add / del response + @param context - sender context, to match reply w/ request + @param retval - return value for request +*/ +define trace_profile_del_reply { + u32 context; + i32 retval; +}; diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_all_api_h.h b/plugins/ioam-plugin/ioam/lib-trace/trace_all_api_h.h new file mode 100644 index 00000000000..223f95450aa --- /dev/null +++ b/plugins/ioam-plugin/ioam/lib-trace/trace_all_api_h.h @@ -0,0 +1,16 @@ +/* + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* Include the generated file, see BUILT_SOURCES in Makefile.am */ +#include <ioam/lib-trace/trace.api.h> diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_api.c b/plugins/ioam-plugin/ioam/lib-trace/trace_api.c new file mode 100644 index 00000000000..1b8ad3cc0d6 --- /dev/null +++ b/plugins/ioam-plugin/ioam/lib-trace/trace_api.c @@ -0,0 +1,210 @@ +/* + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + *------------------------------------------------------------------ + * trace_api.c - iOAM Trace related APIs to create + * and maintain profiles + *------------------------------------------------------------------ + */ + +#include <vnet/vnet.h> +#include <vnet/plugin/plugin.h> +#include <ioam/lib-trace/trace_util.h> + +#include <vlibapi/api.h> +#include <vlibmemory/api.h> +#include <vlibsocket/api.h> + +/* define message IDs */ +#include <ioam/lib-trace/trace_msg_enum.h> + +/* define message structures */ +#define vl_typedefs +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_typedefs + +/* define generated endian-swappers */ +#define vl_endianfun +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_endianfun + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__) +#define vl_printfun +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_printfun + +/* Get the API version number */ +#define vl_api_version(n,v) static u32 api_version=(v); +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_api_version + +/* + * A handy macro to set up a message reply. + * Assumes that the following variables are available: + * mp - pointer to request message + * rmp - pointer to reply message type + * rv - return value + */ + +#define TRACE_REPLY_MACRO(t) \ +do { \ + unix_shared_memory_queue_t * q = \ + vl_api_client_index_to_input_queue (mp->client_index); \ + if (!q) \ + return; \ + \ + rmp = vl_msg_api_alloc (sizeof (*rmp)); \ + rmp->_vl_msg_id = ntohs((t)+sm->msg_id_base); \ + rmp->context = mp->context; \ + rmp->retval = ntohl(rv); \ + \ + vl_msg_api_send_shmem (q, (u8 *)&rmp); \ +} while(0); + +/* *INDENT-OFF* */ +#define TRACE_REPLY_MACRO2(t, body) \ +do { \ + unix_shared_memory_queue_t * q; \ + rv = vl_msg_api_pd_handler (mp, rv); \ + q = vl_api_client_index_to_input_queue (mp->client_index); \ + if (!q) \ + return; \ + \ + rmp = vl_msg_api_alloc (sizeof (*rmp)); \ + rmp->_vl_msg_id = ntohs((t)); \ + rmp->context = mp->context; \ + rmp->retval = ntohl(rv); \ + do {body;} while (0); \ + vl_msg_api_send_shmem (q, (u8 *)&rmp); \ +} while(0); +/* *INDENT-ON* */ + +/* List of message types that this plugin understands */ + +#define foreach_trace_plugin_api_msg \ +_(TRACE_PROFILE_ADD, trace_profile_add) \ +_(TRACE_PROFILE_DEL, trace_profile_del) \ + +static void vl_api_trace_profile_add_t_handler + (vl_api_trace_profile_add_t * mp) +{ + trace_main_t *sm = &trace_main; + int rv = 0; + vl_api_trace_profile_add_reply_t *rmp; + trace_profile *profile = NULL; + u8 *name = 0; + + profile = trace_profile_find (); + if (profile) + { + rv = + trace_profile_create (profile, mp->trace_type, mp->num_elts, + mp->trace_tsp, mp->node_id, mp->app_data); + if (rv != 0) + goto ERROROUT; + } + else + { + rv = -3; + } +ERROROUT: + vec_free (name); + TRACE_REPLY_MACRO (VL_API_TRACE_PROFILE_ADD_REPLY); +} + + +static void vl_api_trace_profile_del_t_handler + (vl_api_trace_profile_del_t * mp) +{ + trace_main_t *sm = &trace_main; + int rv = 0; + vl_api_trace_profile_del_reply_t *rmp; + + clear_trace_profiles (); + + TRACE_REPLY_MACRO (VL_API_TRACE_PROFILE_DEL_REPLY); +} + + +/* + * This routine exists to convince the vlib plugin framework that + * we haven't accidentally copied a random .dll into the plugin directory. + * + * Also collects global variable pointers passed from the vpp engine + */ + +clib_error_t * +vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h, + int from_early_init) +{ + trace_main_t *sm = &trace_main; + clib_error_t *error = 0; + + sm->vlib_main = vm; + sm->vnet_main = h->vnet_main; + return error; +} + +/* Set up the API message handling tables */ +static clib_error_t * +trace_plugin_api_hookup (vlib_main_t * vm) +{ + trace_main_t *sm = &trace_main; +#define _(N,n) \ + vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \ + #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_trace_plugin_api_msg; +#undef _ + + return 0; +} + +static clib_error_t * +trace_init (vlib_main_t * vm) +{ + trace_main_t *sm = &trace_main; + clib_error_t *error = 0; + u8 *name; + + bzero (sm, sizeof (trace_main)); + (void) trace_util_init (); + name = format (0, "trace_%08x%c", api_version, 0); + + /* Ask for a correctly-sized block of API message decode slots */ + sm->msg_id_base = vl_msg_api_get_msg_ids + ((char *) name, VL_MSG_FIRST_AVAILABLE); + + error = trace_plugin_api_hookup (vm); + + vec_free (name); + + return error; +} + +VLIB_INIT_FUNCTION (trace_init); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_msg_enum.h b/plugins/ioam-plugin/ioam/lib-trace/trace_msg_enum.h new file mode 100644 index 00000000000..78c35665f3c --- /dev/null +++ b/plugins/ioam-plugin/ioam/lib-trace/trace_msg_enum.h @@ -0,0 +1,28 @@ +/* + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef included_trace_msg_enum_h +#define included_trace_msg_enum_h + +#include <vppinfra/byte_order.h> + +#define vl_msg_id(n,h) n, +typedef enum { +#include <ioam/lib-trace/trace_all_api_h.h> + /* We'll want to know how many messages IDs we need... */ + VL_MSG_FIRST_AVAILABLE, +} vl_msg_id_t; +#undef vl_msg_id + +#endif /* included_trace_msg_enum_h */ diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_test.c b/plugins/ioam-plugin/ioam/lib-trace/trace_test.c new file mode 100644 index 00000000000..dc3851bec16 --- /dev/null +++ b/plugins/ioam-plugin/ioam/lib-trace/trace_test.c @@ -0,0 +1,251 @@ +/* + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +/* + *------------------------------------------------------------------ + * trace_test.c - test harness for trace plugin + *------------------------------------------------------------------ + */ + +#include <vat/vat.h> +#include <vlibapi/api.h> +#include <vlibmemory/api.h> +#include <vlibsocket/api.h> +#include <vppinfra/error.h> + +/* Declare message IDs */ +#include <ioam/lib-trace/trace_msg_enum.h> + +/* define message structures */ +#define vl_typedefs +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_typedefs + +/* declare message handlers for each api */ + +#define vl_endianfun /* define message structures */ +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_endianfun + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) +#define vl_printfun +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_printfun + +/* Get the API version number. */ +#define vl_api_version(n,v) static u32 api_version=(v); +#include <ioam/lib-trace/trace_all_api_h.h> +#undef vl_api_version + + +typedef struct +{ + /* API message ID base */ + u16 msg_id_base; + vat_main_t *vat_main; +} trace_test_main_t; + +trace_test_main_t trace_test_main; + +#define foreach_standard_reply_retval_handler \ +_(trace_profile_add_reply) \ +_(trace_profile_del_reply) + +#define _(n) \ + static void vl_api_##n##_t_handler \ + (vl_api_##n##_t * mp) \ + { \ + vat_main_t * vam = trace_test_main.vat_main; \ + i32 retval = ntohl(mp->retval); \ + if (vam->async_mode) { \ + vam->async_errors += (retval < 0); \ + } else { \ + vam->retval = retval; \ + vam->result_ready = 1; \ + } \ + } +foreach_standard_reply_retval_handler; +#undef _ + +/* + * Table of message reply handlers, must include boilerplate handlers + * we just generated + */ +#define foreach_vpe_api_reply_msg \ +_(TRACE_PROFILE_ADD_REPLY, trace_profile_add_reply) \ +_(TRACE_PROFILE_DEL_REPLY, trace_profile_del_reply) \ + + +/* M: construct, but don't yet send a message */ + +#define M(T,t) \ +do { \ + vam->result_ready = 0; \ + mp = vl_msg_api_alloc(sizeof(*mp)); \ + memset (mp, 0, sizeof (*mp)); \ + mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \ + mp->client_index = vam->my_client_index; \ +} while(0); + +#define M2(T,t,n) \ +do { \ + vam->result_ready = 0; \ + mp = vl_msg_api_alloc(sizeof(*mp)+(n)); \ + memset (mp, 0, sizeof (*mp)); \ + mp->_vl_msg_id = ntohs (VL_API_##T + sm->msg_id_base); \ + mp->client_index = vam->my_client_index; \ +} while(0); + +/* S: send a message */ +#define S (vl_msg_api_send_shmem (vam->vl_input_queue, (u8 *)&mp)) + +/* W: wait for results, with timeout */ +#define W \ +do { \ + timeout = vat_time_now (vam) + 1.0; \ + \ + while (vat_time_now (vam) < timeout) { \ + if (vam->result_ready == 1) { \ + return (vam->retval); \ + } \ + } \ + return -99; \ +} while(0); + + +static int +api_trace_profile_add (vat_main_t * vam) +{ + trace_test_main_t *sm = &trace_test_main; + unformat_input_t *input = vam->input; + vl_api_trace_profile_add_t *mp; + u8 trace_type = 0; + u8 num_elts = 0; + int rv = 0; + u32 node_id = 0; + u32 app_data = 0; + u32 trace_tsp = 0; + f64 timeout; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "trace-type 0x%x", &trace_type)) + ; + else if (unformat (input, "trace-elts %d", &num_elts)) + ; + else if (unformat (input, "trace-tsp %d", &trace_tsp)) + ; + else if (unformat (input, "node-id 0x%x", &node_id)) + ; + else if (unformat (input, "app-data 0x%x", &app_data)) + ; + + else + break; + } + + + M (TRACE_PROFILE_ADD, trace_profile_add); + + mp->trace_type = trace_type; + mp->trace_tsp = ntohl (trace_tsp); + mp->node_id = ntohl (node_id); + mp->app_data = ntohl (app_data); + mp->num_elts = num_elts; + + S; + W; + + return (rv); +} + + + +static int +api_trace_profile_del (vat_main_t * vam) +{ + trace_test_main_t *sm = &trace_test_main; + vl_api_trace_profile_del_t *mp; + f64 timeout; + + M (TRACE_PROFILE_DEL, trace_profile_del); + S; + W; + return 0; +} + +/* + * List of messages that the api test plugin sends, + * and that the data plane plugin processes + */ +#define foreach_vpe_api_msg \ +_(trace_profile_add, ""\ + "trace-type <0x1f|0x3|0x9|0x11|0x19> trace-elts <nn> trace-tsp <0|1|2|3> node-id <node id in hex> app-data <app_data in hex>") \ +_(trace_profile_del, "[id <nn>]") \ + + +void +vat_api_hookup (vat_main_t * vam) +{ + trace_test_main_t *sm = &trace_test_main; + /* Hook up handlers for replies from the data plane plug-in */ +#define _(N,n) \ + vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), \ + #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_vpe_api_reply_msg; +#undef _ + + /* API messages we can send */ +#define _(n,h) hash_set_mem (vam->function_by_name, #n, api_##n); + foreach_vpe_api_msg; +#undef _ + + /* Help strings */ +#define _(n,h) hash_set_mem (vam->help_by_name, #n, h); + foreach_vpe_api_msg; +#undef _ +} + +clib_error_t * +vat_plugin_register (vat_main_t * vam) +{ + trace_test_main_t *sm = &trace_test_main; + u8 *name; + + sm->vat_main = vam; + + name = format (0, "trace_%08x%c", api_version, 0); + sm->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name); + + if (sm->msg_id_base != (u16) ~ 0) + vat_api_hookup (vam); + + vec_free (name); + + return 0; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_util.c b/plugins/ioam-plugin/ioam/lib-trace/trace_util.c new file mode 100644 index 00000000000..4bc9f84deec --- /dev/null +++ b/plugins/ioam-plugin/ioam/lib-trace/trace_util.c @@ -0,0 +1,221 @@ +/* + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <vnet/vnet.h> +#include <stdint.h> +#include <time.h> +#include <string.h> +#include <vppinfra/mem.h> +#include "trace_util.h" + +trace_main_t trace_main; + +extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main; + +static int +trace_profile_cleanup (trace_profile * profile) +{ + int rv; + ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; + + memset (profile, 0, sizeof (trace_profile)); + profile->trace_tsp = TSP_MICROSECONDS; /* Micro seconds */ + hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = 0; + if (0 != + (rv = + ip6_ioam_set_rewrite (&hm->rewrite, hm->has_trace_option, + hm->has_pot_option, hm->has_ppc_option))) + return (-1); + return 0; + +} + +static int +trace_main_profiles_reset (void) +{ + int rv; + + trace_main_t *sm = &trace_main; + rv = trace_profile_cleanup (&(sm->profile)); + return (rv); +} + +int +trace_util_init (void) +{ + int rv; + + rv = trace_main_profiles_reset (); + return (rv); +} + + +int +trace_profile_create (trace_profile * profile, u8 trace_type, u8 num_elts, + u32 trace_tsp, u32 node_id, u32 app_data) +{ + u32 trace_size = 0; + int rv; + ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; + + if (profile && !profile->valid) + { + //rv = trace_profile_cleanup (profile); + profile->trace_type = trace_type; + profile->num_elts = num_elts; + profile->trace_tsp = trace_tsp; + profile->node_id = node_id; + profile->app_data = app_data; + profile->valid = 1; + + if (ioam_trace_get_sizeof_handler (&trace_size) < 0) + return (-1); + + hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = trace_size; + + if (hm->has_trace_option) + { + if (0 != + (rv = + ip6_ioam_set_rewrite (&hm->rewrite, hm->has_trace_option, + hm->has_pot_option, hm->has_ppc_option))) + return (-1); + + } + return (0); + } + + return (-1); +} + + + +clib_error_t * +clear_trace_profile_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + + trace_main_profiles_reset (); + return 0; +} + +void +clear_trace_profiles (void) +{ + clear_trace_profile_command_fn (0, 0, 0); +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND(clear_trace_profile_command) = +{ +.path = "clear ioam-trace profile", +.short_help = "clear ioam-trace profile [<index>|all]", +.function = clear_trace_profile_command_fn, +}; +/* *INDENT-ON* */ + +static clib_error_t * +set_trace_profile_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + u8 trace_type = 0; + u8 num_elts = 0; + u32 node_id = 0; + u32 app_data = 0; + u32 trace_tsp = 0; + trace_profile *profile = NULL; + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "trace-type 0x%x", &trace_type)); + else if (unformat (input, "trace-elts %d", &num_elts)); + else if (unformat (input, "trace-tsp %d", &trace_tsp)); + else if (unformat (input, "node-id 0x%x", &node_id)); + else if (unformat (input, "app-data 0x%x", &app_data)); + else + return clib_error_return (0, "unknown input `%U'", + format_unformat_error, input); + } + profile = trace_profile_find (); + if (profile) + { + trace_profile_create (profile, trace_type, num_elts, trace_tsp, + node_id, app_data); + } + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (set_trace_profile_command) = +{ +.path = "set ioam-trace profile",.short_help = "set ioam-trace \ + trace-type <0x1f|0x3|0x9|0x11|0x19> trace-elts <nn> trace-tsp <0|1|2|3> node-id <node id in hex> app-data <app_data in hex>",.function = set_trace_profile_command_fn,}; + +/* *INDENT-ON* */ + +static clib_error_t * +show_trace_profile_command_fn (vlib_main_t * vm, + unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + trace_profile *p = NULL; + u8 *s = 0; + p = trace_profile_find (); + if (p->valid == 0) + return 0; + s = format (s, " HOP BY HOP OPTIONS - TRACE CONFIG - \n"); + s = format (s, " Trace Type : 0x%x (%d)\n", + p->trace_type, p->trace_type); + s = + format (s, " Trace timestamp precision : %d (%s)\n", + p->trace_tsp, + (p->trace_tsp == + TSP_SECONDS) ? "Seconds" : ((p->trace_tsp == + TSP_MILLISECONDS) ? + "Milliseconds" + : (((p->trace_tsp == + TSP_MICROSECONDS) ? + "Microseconds" : + "Nanoseconds")))); + s = format (s, " Num of trace nodes : %d\n", p->num_elts); + s = + format (s, " Node-id : 0x%x (%d)\n", + p->node_id, p->node_id); + s = + format (s, " App Data : 0x%x (%d)\n", + p->app_data, p->app_data); + if (!(p && p->valid)) + { + s = format (s, "\nTrace configuration not valid\n"); + } + vlib_cli_output (vm, "%v", s); + vec_free (s); + return 0; +} + +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (show_trace_profile_command) = +{ +.path = "show ioam-trace profile",.short_help = + "show ioam-trace profile",.function = show_trace_profile_command_fn,}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/plugins/ioam-plugin/ioam/lib-trace/trace_util.h b/plugins/ioam-plugin/ioam/lib-trace/trace_util.h new file mode 100644 index 00000000000..4528b18a8b0 --- /dev/null +++ b/plugins/ioam-plugin/ioam/lib-trace/trace_util.h @@ -0,0 +1,250 @@ +/* + * trace_util.h -- Trace Profile Utility header + * + * 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: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef include_vnet_trace_util_h +#define include_vnet_trace_util_h + +#include <vnet/ip/ip6_hop_by_hop.h> +#define debug_ioam debug_ioam_fn + + +/** + * Usage: + * + * On any node that participates in iOAM Trace. + * + * Step 1: Initialize this library by calling trace_init() + * Step 2: Setup a trace profile that contains all the parameters needed to compute cumulative: + * Call these functions: + * trace_profile_find + * trace_profile_create + * Step 2a: On initial node enable the profile to be used: + * trace_profile_set_active / trace_profile_get_active will return the profile + * Step 4: TBD + * trace_validate + * + */ + +typedef struct trace_profile_ +{ + u8 valid:1; + u8 trace_type; + u8 num_elts; + /* Configured node-id */ + u32 node_id; + u32 app_data; + u32 trace_tsp; +} trace_profile; + +typedef struct +{ + /* Name of the default profile list in use */ + trace_profile profile; + + /* API message ID base */ + u16 msg_id_base; + + /* convenience */ + vlib_main_t *vlib_main; + vnet_main_t *vnet_main; +} trace_main_t; + +extern trace_main_t trace_main; + +/* + * Initialize Trace profile + */ +int trace_util_init (void); + + +/* + * Find a trace profile by ID + */ +always_inline trace_profile *trace_profile_find (void); + +always_inline trace_profile * +trace_profile_find (void) +{ + trace_main_t *sm = &trace_main; + + return (&(sm->profile)); +} + + +/* setup and clean up profile */ +int trace_profile_create (trace_profile * profile, u8 trace_type, u8 num_elts, + u32 trace_tsp, u32 node_id, u32 app_data); + +void clear_trace_profiles (void); + + + +#define BIT_TTL_NODEID (1<<0) +#define BIT_ING_INTERFACE (1<<1) +#define BIT_EGR_INTERFACE (1<<2) +#define BIT_TIMESTAMP (1<<3) +#define BIT_APPDATA (1<<4) +#define TRACE_TYPE_MASK 0x1F /* Mask of all above bits */ + +/* + 0x00011111 iOAM-trace-type is 0x00011111 then the format of node + data is: + + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Hop_Lim | node_id | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | ingress_if_id | egress_if_id | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + timestamp + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | app_data | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +*/ +#define TRACE_TYPE_IF_TS_APP 0x1f +typedef struct +{ + u32 ttl_node_id; + u16 ingress_if; + u16 egress_if; + u32 timestamp; + u32 app_data; +} ioam_trace_if_ts_app_t; + +/* + 0x00000111 iOAM-trace-type is 0x00000111 then the format is: + + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Hop_Lim | node_id | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | ingress_if_id | egress_if_id | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +*/ + +#define TRACE_TYPE_IF 0x03 +typedef struct +{ + u32 ttl_node_id; + u16 ingress_if; + u16 egress_if; +} ioam_trace_if_t; + +/* + 0x00001001 iOAM-trace-type is 0x00001001 then the format is: + + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Hop_Lim | node_id | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + timestamp + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +*/ + +#define TRACE_TYPE_TS 0x09 +typedef struct +{ + u32 ttl_node_id; + u32 timestamp; +} ioam_trace_ts_t; + +/* + 0x00010001 iOAM-trace-type is 0x00010001 then the format is: + + + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Hop_Lim | node_id | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | app_data | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +*/ + + +#define TRACE_TYPE_APP 0x11 +typedef struct +{ + u32 ttl_node_id; + u32 app_data; +} ioam_trace_app_t; + +/* + + 0x00011001 iOAM-trace-type is 0x00011001 then the format is: + + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Hop_Lim | node_id | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + timestamp + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | app_data | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +*/ + +#define TRACE_TYPE_TS_APP 0x19 +typedef struct +{ + u32 ttl_node_id; + u32 timestamp; + u32 app_data; +} ioam_trace_ts_app_t; + + +/* *INDENT-OFF* */ +typedef CLIB_PACKED(struct { + ip6_hop_by_hop_option_t hdr; + u8 ioam_trace_type; + u8 data_list_elts_left; + u32 elts[0]; /* Variable type. So keep it generic */ +}) ioam_trace_option_t; +/* *INDENT-ON* */ + + +static inline u8 +fetch_trace_data_size (u8 trace_type) +{ + u8 trace_data_size = 0; + + if (trace_type == TRACE_TYPE_IF_TS_APP) + trace_data_size = sizeof (ioam_trace_if_ts_app_t); + else if (trace_type == TRACE_TYPE_IF) + trace_data_size = sizeof (ioam_trace_if_t); + else if (trace_type == TRACE_TYPE_TS) + trace_data_size = sizeof (ioam_trace_ts_t); + else if (trace_type == TRACE_TYPE_APP) + trace_data_size = sizeof (ioam_trace_app_t); + else if (trace_type == TRACE_TYPE_TS_APP) + trace_data_size = sizeof (ioam_trace_ts_app_t); + + return trace_data_size; +} + +int ioam_trace_get_sizeof_handler (u32 * result); +#endif + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |