lib_LTLIBRARIES = libsixrd_plugin.la
+########################################
+# iOAM Proof of Transit
+########################################
+
+ioam_pot_plugin_la_SOURCES = plugins/ioam/lib-pot/pot_util.c plugins/ioam/encap/ip6_ioam_pot.c \
+ plugins/ioam/lib-pot/pot_util.h plugins/ioam/lib-pot/math64.h plugins/ioam/lib-pot/pot_api.c
+ioam_pot_plugin_la_LDFLAGS = -module
+
+BUILT_SOURCES = plugins/ioam/lib-pot/pot.api.h
+SUFFIXES = .api.h .api
+
+%.api.h: %.api
+ mkdir -p `dirname $@` ; \
+ $(CC) $(CPPFLAGS) -E -P -C -x c $^ \
+ | vppapigen --input - --output $@ --show-name $@
+
+nobase_include_HEADERS = \
+ plugins/ioam/lib-pot/pot_all_api_h.h \
+ plugins/ioam/lib-pot/pot_msg_enum.h \
+ plugins/ioam/lib-pot/pot.api.h \
+ plugins/ioam/lib-pot/pot_util.h \
+ plugins/ioam/lib-pot/math64.h
+
+ioam_pot_test_plugin_la_SOURCES = plugins/ioam/lib-pot/pot_test.c plugins/ioam/lib-pot/pot_plugin.api.h
+ioam_pot_test_plugin_la_LDFLAGS = -module
+
+lib_LTLIBRARIES += ioam_pot_plugin.la ioam_pot_test_plugin.la
+
if WITH_PLUGIN_TOOLKIT
install-data-hook:
mkdir /usr/lib/vpp_plugins || true
mkdir /usr/lib/vpp_api_test_plugins || true
cp $(prefix)/lib/sixrd_plugin.so.*.*.* /usr/lib/vpp_plugins
+ cp $(prefix)/lib/ioam_pot_plugin.so.*.*.* /usr/lib/vpp_plugins
+ cp $(prefix)/lib/ioam_pot_test_plugin.so.*.*.* \
+ /usr/lib/vpp_api_test_plugins
endif
--- /dev/null
+/*
+ * 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 <lib-pot/pot_util.h>
+
+typedef CLIB_PACKED(struct {
+ ip6_hop_by_hop_option_t hdr;
+ u8 pot_type;
+#define PROFILE_ID_MASK 0xF
+ u8 reserved_profile_id; /* 4 bits reserved, 4 bits to carry profile id */
+ u64 random;
+ u64 cumulative;
+}) ioam_pot_option_t;
+
+#define foreach_ip6_hop_by_hop_ioam_pot_stats \
+ _(PROCESSED, "Pkts with ip6 hop-by-hop pot options") \
+ _(PROFILE_MISS, "Pkts with ip6 hop-by-hop pot options but no profile set") \
+ _(PASSED, "Pkts with POT in Policy") \
+ _(FAILED, "Pkts with POT out of Policy")
+
+static char * ip6_hop_by_hop_ioam_pot_stats_strings[] = {
+#define _(sym,string) string,
+ foreach_ip6_hop_by_hop_ioam_pot_stats
+#undef _
+};
+
+typedef enum {
+#define _(sym,str) IP6_IOAM_POT_##sym,
+ foreach_ip6_hop_by_hop_ioam_pot_stats
+#undef _
+ IP6_IOAM_POT_N_STATS,
+} ip6_ioam_pot_stats_t;
+
+typedef struct {
+ /* stats */
+ u64 counters[ARRAY_LEN(ip6_hop_by_hop_ioam_pot_stats_strings)];
+
+ /* convenience */
+ vlib_main_t * vlib_main;
+ vnet_main_t * vnet_main;
+} ip6_hop_by_hop_ioam_pot_main_t;
+
+ip6_hop_by_hop_ioam_pot_main_t ip6_hop_by_hop_ioam_pot_main;
+
+always_inline void
+ip6_ioam_stats_increment_counter (u32 counter_index, u64 increment)
+{
+ ip6_hop_by_hop_ioam_pot_main_t *hm = &ip6_hop_by_hop_ioam_pot_main;
+
+ hm->counters[counter_index] += increment;
+}
+
+
+static u8 * format_ioam_pot (u8 * s, va_list * args)
+{
+ ioam_pot_option_t * pot0 = va_arg (*args, ioam_pot_option_t *);
+ u64 random, cumulative;
+ random = cumulative = 0;
+ if (pot0)
+ {
+ random = clib_net_to_host_u64 (pot0->random);
+ cumulative = clib_net_to_host_u64 (pot0->cumulative);
+ }
+
+ s = format (s, "random = 0x%Lx, Cumulative = 0x%Lx, Index = 0x%x",
+ random, cumulative, pot0->reserved_profile_id);
+ return s;
+}
+
+u8 *
+ip6_hbh_ioam_proof_of_transit_trace_handler (u8 *s, ip6_hop_by_hop_option_t *opt)
+{
+ ioam_pot_option_t *pot;
+
+ s = format (s, " POT opt present\n");
+ pot = (ioam_pot_option_t *) opt;
+ s = format (s, " %U\n", format_ioam_pot, pot);
+ return (s);
+}
+
+int
+ip6_hbh_ioam_proof_of_transit_handler (vlib_buffer_t *b,
+ ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt0)
+{
+ ioam_pot_option_t * pot0;
+ u64 random = 0, cumulative = 0;
+ int rv = 0;
+ u8 pot_profile_index;
+ pot_profile *pot_profile = 0, *new_profile = 0;
+ u8 pot_encap = 0;
+
+ pot0 = (ioam_pot_option_t *) opt0;
+ pot_encap = (pot0->random == 0);
+ pot_profile_index = pot_profile_get_active_id();
+ pot_profile = pot_profile_get_active();
+ if (pot_encap && PREDICT_FALSE(!pot_profile))
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PROFILE_MISS, 1);
+ return(-1);
+ }
+ if (pot_encap)
+ {
+ pot0->reserved_profile_id =
+ pot_profile_index & PROFILE_ID_MASK;
+ pot_profile_incr_usage_stats(pot_profile);
+ }
+ else
+ { /* Non encap node */
+ if (PREDICT_FALSE(pot0->reserved_profile_id !=
+ pot_profile_index || pot_profile == 0))
+ {
+ /* New profile announced by encap node. */
+ new_profile =
+ pot_profile_find(pot0->reserved_profile_id);
+ if (PREDICT_FALSE(new_profile == 0 ||
+ new_profile->valid == 0))
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PROFILE_MISS, 1);
+ return(-1);
+ }
+ else
+ {
+ pot_profile_index = pot0->reserved_profile_id;
+ pot_profile = new_profile;
+ pot_profile_set_active(pot_profile_index);
+ pot_profile_reset_usage_stats(pot_profile);
+ }
+ }
+ pot_profile_incr_usage_stats(pot_profile);
+ }
+
+ if (pot0->random == 0)
+ {
+ pot0->random = clib_host_to_net_u64(pot_generate_random(pot_profile));
+ pot0->cumulative = 0;
+ }
+ random = clib_net_to_host_u64(pot0->random);
+ cumulative = clib_net_to_host_u64(pot0->cumulative);
+ pot0->cumulative = clib_host_to_net_u64(
+ pot_update_cumulative(pot_profile,
+ cumulative,
+ random));
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PROCESSED, 1);
+
+ return (rv);
+}
+
+int
+ip6_hbh_ioam_proof_of_transit_pop_handler (ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt0)
+{
+ ioam_pot_option_t * pot0;
+ u64 random = 0;
+ u64 cumulative = 0;
+ int rv = 0;
+ pot_profile *pot_profile = 0;
+ u8 result = 0;
+
+ pot0 = (ioam_pot_option_t *) opt0;
+ random = clib_net_to_host_u64(pot0->random);
+ cumulative = clib_net_to_host_u64(pot0->cumulative);
+ pot_profile = pot_profile_get_active();
+ result = pot_validate (pot_profile,
+ cumulative, random);
+
+ if (result == 1)
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_PASSED, 1);
+ }
+ else
+ {
+ ip6_ioam_stats_increment_counter (IP6_IOAM_POT_FAILED, 1);
+ }
+ return (rv);
+}
+
+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))
+ {
+ pot_option = (ioam_pot_option_t *)rewrite_string;
+ pot_option->hdr.type = HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT
+ | HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE;
+ pot_option->hdr.length = sizeof (ioam_pot_option_t) -
+ sizeof (ip6_hop_by_hop_option_t);
+ return(0);
+ }
+ return(-1);
+}
+
+static clib_error_t *
+ip6_show_ioam_pot_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ ip6_hop_by_hop_ioam_pot_main_t *hm = &ip6_hop_by_hop_ioam_pot_main;
+ u8 *s = 0;
+ int i = 0;
+
+ for ( i = 0; i < IP6_IOAM_POT_N_STATS; i++)
+ {
+ s = format(s, " %s - %lu\n", ip6_hop_by_hop_ioam_pot_stats_strings[i],
+ hm->counters[i]);
+ }
+
+ vlib_cli_output(vm, "%v", s);
+ vec_free(s);
+ return 0;
+}
+
+
+VLIB_CLI_COMMAND (ip6_show_ioam_pot_cmd, static) = {
+ .path = "show ioam pot",
+ .short_help = "iOAM pot statistics",
+ .function = ip6_show_ioam_pot_cmd_fn,
+};
+
+
+static clib_error_t *
+ip6_hop_by_hop_ioam_pot_init (vlib_main_t * vm)
+{
+ ip6_hop_by_hop_ioam_pot_main_t * hm = &ip6_hop_by_hop_ioam_pot_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_PROOF_OF_TRANSIT, ip6_hbh_ioam_proof_of_transit_handler,
+ ip6_hbh_ioam_proof_of_transit_trace_handler) < 0)
+ return (clib_error_create("registration of HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT failed"));
+
+ if (ip6_hbh_add_register_option(HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT,
+ sizeof(ioam_pot_option_t),
+ ip6_hop_by_hop_ioam_pot_rewrite_handler) < 0)
+ return (clib_error_create("registration of HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT for rewrite failed"));
+
+ if (ip6_hbh_pop_register_option(HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT,
+ ip6_hbh_ioam_proof_of_transit_pop_handler) < 0)
+ return (clib_error_create("registration of HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT POP failed"));
+
+ return (0);
+}
+
+VLIB_INIT_FUNCTION (ip6_hop_by_hop_ioam_pot_init);
+
+
* Hence this header to combine add/multiply followed by modulo of u64 integrers
* always resulting in u64.
*
- * 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:
--- /dev/null
+/* 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 Proof of Transit(POT): Set POT profile
+ @param id - id of the profile
+ @param validator - True/False to indicate if this is verifier
+ @param secret_key - Verification key
+ @param secret_share - Share of the 1st polynomial
+ @param prime - Prime number used for modulo operation
+ @param max_bits - Max bits to be used for Random number generation
+ @param lpc - Lagrange basis polynomial
+ @param polynomial_public - pre-evaluated public polynomial
+ @param list_name_len - length of the name of this profile list
+ @param list_name - name of this profile list
+*/
+define pot_profile_add {
+ u32 client_index;
+ u32 context;
+ u8 id;
+ u8 validator;
+ u64 secret_key;
+ u64 secret_share;
+ u64 prime;
+ u8 max_bits;
+ u64 lpc;
+ u64 polynomial_public;
+ u8 list_name_len;
+ u8 list_name[0];
+};
+
+/** \brief Proof of Transit profile add / del response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define pot_profile_add_reply {
+ u32 context;
+ i32 retval;
+};
+
+
+/** \brief Proof of Transit(POT): Activate POT profile in the list
+ @param id - id of the profile
+ @param list_name_len - length of the name of this profile list
+ @param list_name - name of this profile list
+*/
+define pot_profile_activate {
+ u32 client_index;
+ u32 context;
+ u8 id;
+ u8 list_name_len;
+ u8 list_name[0];
+};
+
+/** \brief Proof of Transit profile activate response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define pot_profile_activate_reply {
+ u32 context;
+ i32 retval;
+};
+
+/** \brief Delete POT 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 pot_profile_del {
+ u32 client_index;
+ u32 context;
+ u8 list_name_len;
+ u8 list_name[0];
+};
+
+/** \brief Proof of Transit profile add / del response
+ @param context - sender context, to match reply w/ request
+ @param retval - return value for request
+*/
+define pot_profile_del_reply {
+ u32 context;
+ i32 retval;
+};
--- /dev/null
+/*
+ * 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 <lib-pot/pot.api.h>
--- /dev/null
+/*
+ * 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.
+ */
+/*
+ *------------------------------------------------------------------
+ * pot_api.c - Proof of Transit related APIs to create
+ * and maintain profiles
+ *------------------------------------------------------------------
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/plugin/plugin.h>
+#include <lib-pot/pot_util.h>
+
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+
+/* define message IDs */
+#include <lib-pot/pot_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <lib-pot/pot_all_api_h.h>
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include <lib-pot/pot_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 <lib-pot/pot_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <lib-pot/pot_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 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);
+
+#define 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);
+
+/* List of message types that this plugin understands */
+
+#define foreach_pot_plugin_api_msg \
+_(POT_PROFILE_ADD, pot_profile_add) \
+_(POT_PROFILE_ACTIVATE, pot_profile_activate) \
+_(POT_PROFILE_DEL, pot_profile_del) \
+
+static void vl_api_pot_profile_add_t_handler
+(vl_api_pot_profile_add_t *mp)
+{
+ pot_main_t * sm = &pot_main;
+ int rv = 0;
+ vl_api_pot_profile_add_reply_t * rmp;
+ u8 id;
+ pot_profile *profile = NULL;
+ u8 *name = 0;
+
+ if (mp->list_name_len)
+ name = format(0, "%s", mp->list_name);
+
+ pot_profile_list_init(name);
+ id = mp->id;
+ profile = pot_profile_find(id);
+ if (profile) {
+ rv = pot_profile_create(profile,
+ clib_net_to_host_u64(mp->prime),
+ clib_net_to_host_u64(mp->polynomial_public),
+ clib_net_to_host_u64(mp->lpc),
+ clib_net_to_host_u64(mp->secret_share));
+ if (rv != 0)
+ goto ERROROUT;
+ if (1 == mp->validator)
+ (void)pot_set_validator(profile, clib_net_to_host_u64(mp->secret_key));
+ (void)pot_profile_set_bit_mask(profile, mp->max_bits);
+ } else {
+ rv = -3;
+ }
+ ERROROUT:
+ vec_free(name);
+ REPLY_MACRO(VL_API_POT_PROFILE_ADD_REPLY);
+}
+
+static void vl_api_pot_profile_activate_t_handler
+(vl_api_pot_profile_activate_t *mp)
+{
+ pot_main_t * sm = &pot_main;
+ int rv = 0;
+ vl_api_pot_profile_add_reply_t * rmp;
+ u8 id;
+ u8 *name = NULL;
+
+ if (mp->list_name_len)
+ name = format(0, "%s", mp->list_name);
+ if (!pot_profile_list_is_enabled(name)) {
+ rv = -1;
+ } else {
+ id = mp->id;
+ rv = pot_profile_set_active(id);
+ }
+
+ vec_free(name);
+ REPLY_MACRO(VL_API_POT_PROFILE_ACTIVATE_REPLY);
+}
+
+
+static void vl_api_pot_profile_del_t_handler
+(vl_api_pot_profile_del_t *mp)
+{
+ pot_main_t * sm = &pot_main;
+ int rv = 0;
+ vl_api_pot_profile_del_reply_t * rmp;
+
+ clear_pot_profiles();
+
+ REPLY_MACRO(VL_API_POT_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)
+{
+ pot_main_t * sm = &pot_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 *
+pot_plugin_api_hookup (vlib_main_t *vm)
+{
+ pot_main_t * sm = &pot_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_pot_plugin_api_msg;
+#undef _
+
+ return 0;
+}
+
+static clib_error_t * pot_init (vlib_main_t * vm)
+{
+ pot_main_t * sm = &pot_main;
+ clib_error_t * error = 0;
+ u8 * name;
+
+ bzero(sm, sizeof(pot_main));
+ (void)pot_util_init();
+ name = format (0, "pot_%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 = pot_plugin_api_hookup (vm);
+
+ vec_free(name);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (pot_init);
--- /dev/null
+/*
+ * 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_pot_msg_enum_h
+#define included_pot_msg_enum_h
+
+#include <vppinfra/byte_order.h>
+
+#define vl_msg_id(n,h) n,
+typedef enum {
+#include <lib-pot/pot_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_pot_msg_enum_h */
--- /dev/null
+/*
+ * 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.
+ */
+/*
+ *------------------------------------------------------------------
+ * pot_test.c - test harness for pot 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 <lib-pot/pot_msg_enum.h>
+
+/* define message structures */
+#define vl_typedefs
+#include <lib-pot/pot_all_api_h.h>
+#undef vl_typedefs
+
+/* declare message handlers for each api */
+
+#define vl_endianfun /* define message structures */
+#include <lib-pot/pot_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...)
+#define vl_printfun
+#include <lib-pot/pot_all_api_h.h>
+#undef vl_printfun
+
+/* Get the API version number. */
+#define vl_api_version(n,v) static u32 api_version=(v);
+#include <lib-pot/pot_all_api_h.h>
+#undef vl_api_version
+
+
+typedef struct {
+ /* API message ID base */
+ u16 msg_id_base;
+ vat_main_t *vat_main;
+} pot_test_main_t;
+
+pot_test_main_t pot_test_main;
+
+#define foreach_standard_reply_retval_handler \
+_(pot_profile_add_reply) \
+_(pot_profile_activate_reply) \
+_(pot_profile_del_reply)
+
+#define _(n) \
+ static void vl_api_##n##_t_handler \
+ (vl_api_##n##_t * mp) \
+ { \
+ vat_main_t * vam = pot_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 \
+_(POT_PROFILE_ADD_REPLY, pot_profile_add_reply) \
+_(POT_PROFILE_ACTIVATE_REPLY, pot_profile_activate_reply) \
+_(POT_PROFILE_DEL_REPLY, pot_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_pot_profile_add (vat_main_t *vam)
+{
+#define MAX_BITS 64
+ pot_test_main_t * sm = &pot_test_main;
+ unformat_input_t *input = vam->input;
+ vl_api_pot_profile_add_t *mp;
+ u8 *name = NULL;
+ u64 prime = 0;
+ u64 secret_share = 0;
+ u64 secret_key = 0;
+ u32 bits = MAX_BITS;
+ u64 lpc = 0, poly2 = 0;
+ f64 timeout;
+ u8 id = 0;
+ int rv = 0;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s", &name))
+ ;
+ else if(unformat(input, "id %d", &id))
+ ;
+ else if (unformat(input, "validator-key 0x%Lx", &secret_key))
+ ;
+ else if (unformat(input, "prime-number 0x%Lx", &prime))
+ ;
+ else if (unformat(input, "secret-share 0x%Lx", &secret_share))
+ ;
+ else if (unformat(input, "polynomial-public 0x%Lx", &poly2))
+ ;
+ else if (unformat(input, "lpc 0x%Lx", &lpc))
+ ;
+ else if (unformat(input, "bits-in-random %u", &bits))
+ {
+ if (bits > MAX_BITS)
+ bits = MAX_BITS;
+ }
+ else
+ break;
+ }
+
+ if (!name)
+ {
+ errmsg ("name required\n");
+ rv = -99;
+ goto OUT;
+ }
+
+ M2(POT_PROFILE_ADD, pot_profile_add, vec_len(name));
+
+ mp->list_name_len = vec_len(name);
+ clib_memcpy(mp->list_name, name, mp->list_name_len);
+ mp->secret_share = clib_host_to_net_u64(secret_share);
+ mp->polynomial_public = clib_host_to_net_u64(poly2);
+ mp->lpc = clib_host_to_net_u64(lpc);
+ mp->prime = clib_host_to_net_u64(prime);
+ if (secret_key != 0)
+ {
+ mp->secret_key = clib_host_to_net_u64(secret_key);
+ mp->validator = 1;
+ }
+ else
+ {
+ mp->validator = 0;
+ }
+ mp->id = id;
+ mp->max_bits = bits;
+
+ S; W;
+
+OUT:
+ vec_free(name);
+ return(rv);
+}
+
+static int api_pot_profile_activate (vat_main_t *vam)
+{
+#define MAX_BITS 64
+ pot_test_main_t * sm = &pot_test_main;
+ unformat_input_t *input = vam->input;
+ vl_api_pot_profile_activate_t *mp;
+ u8 *name = NULL;
+ u8 id = 0;
+ int rv = 0;
+ f64 timeout;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s", &name))
+ ;
+ else if(unformat(input, "id %d", &id))
+ ;
+ else
+ break;
+ }
+
+ if (!name)
+ {
+ errmsg ("name required\n");
+ rv = -99;
+ goto OUT;
+ }
+
+ M2(POT_PROFILE_ACTIVATE, pot_profile_activate, vec_len(name));
+
+ mp->list_name_len = vec_len(name);
+ clib_memcpy(mp->list_name, name, mp->list_name_len);
+ mp->id = id;
+
+ S; W;
+
+OUT:
+ vec_free(name);
+ return(rv);
+}
+
+
+static int api_pot_profile_del (vat_main_t *vam)
+{
+ pot_test_main_t * sm = &pot_test_main;
+ vl_api_pot_profile_del_t *mp;
+ f64 timeout;
+
+ M(POT_PROFILE_DEL, pot_profile_del);
+ mp->list_name_len = 0;
+ 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 \
+_(pot_profile_add, "name <name> id [0-1] " \
+ "prime-number <0xu64> bits-in-random [0-64] " \
+ "secret-share <0xu64> lpc <0xu64> polynomial-public <0xu64> " \
+ "[validator-key <0xu64>] [validity <0xu64>]") \
+_(pot_profile_activate, "name <name> id [0-1] ") \
+_(pot_profile_del, "[id <nn>]") \
+
+
+void vat_api_hookup (vat_main_t *vam)
+{
+ pot_test_main_t * sm = &pot_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)
+{
+ pot_test_main_t * sm = &pot_test_main;
+ u8 * name;
+
+ sm->vat_main = vam;
+
+ name = format (0, "pot_%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;
+}
--- /dev/null
+/*
+ * 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 "math64.h"
+#include "pot_util.h"
+
+pot_main_t pot_main;
+
+static void pot_profile_cleanup(pot_profile *profile);
+
+static void pot_main_profiles_reset (void)
+{
+ pot_main_t *sm = &pot_main;
+ int i = 0;
+
+ for (i = 0; i < MAX_POT_PROFILES; i++)
+ {
+ pot_profile_cleanup(&(sm->profile_list[i]));
+ }
+ sm->active_profile_id = 0;
+ if (sm->profile_list_name)
+ vec_free(sm->profile_list_name);
+ sm->profile_list_name = NULL;
+}
+
+int pot_util_init (void)
+{
+ pot_main_profiles_reset();
+
+ return(0);
+}
+
+static void pot_profile_init(pot_profile * new, u8 id)
+{
+ if (new)
+ {
+ memset(new, 0, sizeof(pot_profile));
+ new->id = id;
+ }
+}
+
+pot_profile *pot_profile_find(u8 id)
+{
+ pot_main_t *sm = &pot_main;
+
+ if (id >= 0 && id < MAX_POT_PROFILES)
+ {
+ return (&(sm->profile_list[id]));
+ }
+ return (NULL);
+}
+static int pot_profile_name_equal (u8 *name0, u8 *name1)
+{
+ int len0, len1;
+
+ len0 = vec_len (name0);
+ len1 = vec_len (name1);
+ if (len0 != len1)
+ return(0);
+ return (0==strncmp ((char *) name0, (char *)name1, len0));
+}
+
+int pot_profile_list_is_enabled (u8 *name)
+{
+ pot_main_t *sm = &pot_main;
+ return (pot_profile_name_equal(sm->profile_list_name, name));
+}
+
+void pot_profile_list_init(u8 * profile_list_name)
+{
+ pot_main_t *sm = &pot_main;
+ int i = 0;
+
+ /* If it is the same profile list skip reset */
+ if (pot_profile_name_equal(sm->profile_list_name, profile_list_name))
+ {
+ return;
+ }
+
+ pot_main_profiles_reset();
+ if (vec_len(profile_list_name))
+ sm->profile_list_name = (u8 *)vec_dup(profile_list_name);
+ else
+ sm->profile_list_name = 0;
+ sm->active_profile_id = 0;
+
+ for (i = 0; i < MAX_POT_PROFILES; i++)
+ {
+ pot_profile_init(&(sm->profile_list[i]), i);
+ }
+}
+
+static void pot_profile_cleanup(pot_profile * profile)
+{
+ u16 id = profile->id;
+
+ memset(profile, 0, sizeof(pot_profile));
+ profile->id = id; /* Restore id alone */
+}
+
+int pot_profile_create(pot_profile * profile, u64 prime,
+ u64 poly2, u64 lpc, u64 secret_share)
+{
+ if (profile && !profile->in_use)
+ {
+ pot_profile_cleanup(profile);
+ profile->prime = prime;
+ profile->primeinv = 1.0 / prime;
+ profile->lpc = lpc;
+ profile->poly_pre_eval = poly2;
+ profile->secret_share = secret_share;
+ profile->total_pkts_using_this_profile = 0;
+ profile->valid = 1;
+ return(0);
+ }
+
+ return(-1);
+}
+
+int pot_set_validator(pot_profile * profile, u64 key)
+{
+ if (profile && !profile->in_use)
+ {
+ profile->validator = 1;
+ profile->secret_key = key;
+ return(0);
+ }
+ return(-1);
+}
+
+always_inline u64 pot_update_cumulative_inline(u64 cumulative, u64 random,
+ u64 secret_share, u64 prime, u64 lpc, u64 pre_split, double prime_inv)
+{
+ u64 share_random = 0;
+ u64 cumulative_new = 0;
+
+ /*
+ * calculate split share for random
+ */
+ share_random = add64_mod(pre_split, random, prime, prime_inv);
+
+ /*
+ * lpc * (share_secret + share_random)
+ */
+ share_random = add64_mod(share_random, secret_share, prime, prime_inv);
+ share_random = mul64_mod(share_random, lpc, prime, prime_inv);
+
+ cumulative_new = add64_mod(cumulative, share_random, prime, prime_inv);
+
+ return (cumulative_new);
+}
+
+u64 pot_update_cumulative(pot_profile * profile, u64 cumulative, u64 random)
+{
+ if (profile && profile->valid != 0)
+ {
+ return (pot_update_cumulative_inline(cumulative, random, profile->secret_share,
+ profile->prime, profile->lpc, profile->poly_pre_eval,
+ profile->primeinv));
+ }
+ return (0);
+}
+
+always_inline u8 pot_validate_inline(u64 secret, u64 prime, double prime_inv,
+ u64 cumulative, u64 random)
+{
+ if (cumulative == (random + secret))
+ {
+ return (1);
+ }
+ else if (cumulative == add64_mod(random, secret, prime, prime_inv))
+ {
+ return (1);
+ }
+ return (0);
+}
+
+/*
+ * return True if the cumulative matches secret from a profile
+ */
+u8 pot_validate(pot_profile * profile, u64 cumulative, u64 random)
+{
+ if (profile && profile->validator)
+ {
+ return (pot_validate_inline(profile->secret_key, profile->prime,
+ profile->primeinv, cumulative, random));
+ }
+ return (0);
+}
+
+/*
+ * Utility function to get random number per pack
+ */
+u64 pot_generate_random(pot_profile * profile)
+{
+ u64 random = 0;
+ int32_t second_half;
+ static u32 seed = 0;
+
+ if (PREDICT_FALSE(!seed))
+ seed = random_default_seed();
+
+ /*
+ * Upper 4 bytes seconds
+ */
+ random = (u64) time(NULL);
+
+ random &= 0xffffffff;
+ random = random << 32;
+ /*
+ * Lower 4 bytes random number
+ */
+ second_half = random_u32(&seed);
+
+ random |= second_half;
+
+ if (PREDICT_TRUE(profile != NULL))
+ {
+ random &= profile->bit_mask;
+ }
+ return (random);
+}
+
+int pot_profile_set_bit_mask(pot_profile * profile, u16 bits)
+{
+ int sizeInBits;
+
+ if (profile && !profile->in_use)
+ {
+ sizeInBits = sizeof(profile->bit_mask) * 8;
+ profile->bit_mask =
+ (bits >=
+ sizeInBits ? (u64) - 1 : (u64) ((u64) 1 << (u64) bits) - 1);
+ return(0);
+ }
+ return(-1);
+}
+
+clib_error_t *clear_pot_profile_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+
+ pot_main_profiles_reset();
+
+ return 0;
+}
+
+void clear_pot_profiles()
+{
+ clear_pot_profile_command_fn(0, 0, 0);
+}
+
+VLIB_CLI_COMMAND(clear_pot_profile_command) =
+{
+.path = "clear pot profile",
+.short_help = "clear pot profile [<index>|all]",
+.function = clear_pot_profile_command_fn,
+};
+
+static clib_error_t *set_pot_profile_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u64 prime;
+ u64 secret_share;
+ u64 secret_key;
+ u8 validator = 0;
+ u32 profile_id;
+ u32 bits;
+ u64 lpc = 0, poly2 = 0;
+ pot_profile *profile = NULL;
+ u8 *profile_list_name = NULL;
+
+ bits = MAX_BITS;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s",
+ &profile_list_name));
+ else if (unformat(input, "id %d", &profile_id))
+ ;
+ else if (unformat(input, "validate-key 0x%Lx", &secret_key))
+ validator = 1;
+ else if (unformat(input, "prime-number 0x%Lx", &prime))
+ ;
+ else if (unformat(input, "secret_share 0x%Lx", &secret_share))
+ ;
+ else if (unformat(input, "polynomial2 0x%Lx", &poly2))
+ ;
+ else if (unformat(input, "lpc 0x%Lx", &lpc))
+ ;
+ else if (unformat(input, "bits-in-random %d", &bits))
+ {
+ if (bits > MAX_BITS)
+ bits = MAX_BITS;
+ }
+ else
+ return clib_error_return(0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+ if (profile_list_name == 0)
+ {
+ return clib_error_return(0, "Name cannot be null");
+ }
+ pot_profile_list_init(profile_list_name);
+ profile = pot_profile_find(profile_id);
+
+ if (profile)
+ {
+ pot_profile_create(profile, prime, poly2, lpc, secret_share);
+ if (validator)
+ pot_set_validator(profile, secret_key);
+ pot_profile_set_bit_mask(profile, bits);
+ }
+ vec_free(profile_list_name);
+ return 0;
+}
+
+VLIB_CLI_COMMAND(set_pot_profile_command) =
+{
+.path = "set pot profile",
+.short_help = "set pot profile name <string> id [0-1] [validator-key 0xu64] \
+ prime-number 0xu64 secret_share 0xu64 lpc 0xu64 \
+ polynomial2 0xu64 bits-in-random [0-64] ",
+.function = set_pot_profile_command_fn,
+};
+
+static clib_error_t *set_pot_profile_activate_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ pot_main_t *sm = &pot_main;
+ u8 *profile_list_name = NULL;
+ u32 id = 0;
+ clib_error_t *result = NULL;
+
+ while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat(input, "name %s",
+ &profile_list_name));
+ else if (unformat(input, "id %d", &id))
+ ;
+ else
+ return clib_error_return(0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+ if (profile_list_name == 0)
+ {
+ return clib_error_return(0, "Name cannot be null");
+ }
+
+ if (!pot_profile_list_is_enabled(profile_list_name)) {
+ result = clib_error_return(0, "%s list is not enabled, profile in use %s",
+ profile_list_name, sm->profile_list_name);
+ } else if (0 != pot_profile_set_active((u8)id)) {
+ result = clib_error_return(0, "Profile %d not defined in %s",
+ id, sm->profile_list_name);
+ }
+ vec_free(profile_list_name);
+ return result;
+}
+
+VLIB_CLI_COMMAND(set_pot_profile_activate_command) =
+{
+.path = "set pot profile-active",
+.short_help = "set pot profile-active name <string> id [0-1]",
+.function = set_pot_profile_activate_command_fn,
+};
+
+static clib_error_t *show_pot_profile_command_fn(vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ pot_main_t *sm = &pot_main;
+ pot_profile *p = NULL;
+ u16 i;
+ u8 *s = 0;
+
+ if (vec_len(sm->profile_list_name) == 0)
+ {
+ s = format(s, "POT Profiles not configured\n");
+ vlib_cli_output(vm, "%v", s);
+ return 0;
+ }
+ s = format(s, "Profile list in use : %s\n",sm->profile_list_name);
+ for (i = 0; i < MAX_POT_PROFILES; i++)
+ {
+ p = pot_profile_find(i);
+ if (p->valid == 0)
+ continue;
+ s = format(s, "POT Profile at index: %d\n", i);
+ s = format(s, " Id : %d\n", p->id);
+ s = format(s, " Validator : %s (%d)\n",
+ (p->validator) ? "True" : "False", p->validator);
+ if (p->validator == 1)
+ s = format(s, " Secret key : 0x%Lx (%Ld)\n",
+ p->secret_key, p->secret_key);
+ s = format(s, " Secret share : 0x%Lx (%Ld)\n",
+ p->secret_share, p->secret_share);
+ s = format(s, " Prime number : 0x%Lx (%Ld)\n",
+ p->prime, p->prime);
+ s = format(s, "2nd polynomial(eval) : 0x%Lx (%Ld)\n",
+ p->poly_pre_eval, p->poly_pre_eval);
+ s = format(s, " LPC : 0x%Lx (%Ld)\n", p->lpc, p->lpc);
+
+ s = format(s, " Bit mask : 0x%Lx (%Ld)\n",
+ p->bit_mask, p->bit_mask);
+ }
+
+ p = pot_profile_find(sm->active_profile_id);
+
+ if (p && p->valid && p->in_use) {
+ s = format(s, "\nProfile index in use: %d\n", sm->active_profile_id);
+ s = format(s, "Pkts passed : 0x%Lx (%Ld)\n",
+ p->total_pkts_using_this_profile,
+ p->total_pkts_using_this_profile);
+ if (pot_is_decap(p))
+ s = format(s, " This is Decap node. \n");
+ } else {
+ s = format(s, "\nProfile index in use: None\n");
+ }
+ vlib_cli_output(vm, "%v", s);
+ vec_free(s);
+
+ return 0;
+}
+
+VLIB_CLI_COMMAND(show_pot_profile_command) =
+{
+.path = "show pot profile",
+.short_help = "show pot profile",
+.function = show_pot_profile_command_fn,
+};
--- /dev/null
+/*
+ * pot_util.h -- Proof Of Transit 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_pot_util_h
+#define include_vnet_pot_util_h
+
+#include <vnet/ip/ip6_hop_by_hop.h>
+#define debug_ioam debug_ioam_fn
+/* Dont change this size 256. This is there across multiple components */
+#define PATH_NAME_SIZE 256
+
+/* Ring size. this should be same as the one in ODL. Do not change this
+ without change in ODL. */
+#define MAX_POT_PROFILES 2
+
+/**
+ * Usage:
+ *
+ * On any node that participates in Proof of Transit:
+ *
+ * Step 1: Initialize this library by calling pot_init()
+ * Step 2: Setup a proof of transit profile that contains all the parameters needed to compute cumulative:
+ * Call these functions:
+ * pot_profile_find
+ * pot_profile_create
+ * pot_profile_set_bit_mask - To setup how large we want the numbers used in the computation and random number <= 64 bits
+ * Step 2a: For validator do this:
+ * pot_set_validator
+ * Step 2b: On initial node enable the profile to be used:
+ * pot_profile_set_active / pot_profile_get_active will return the profile
+ * Step 3a: At the initial node to generate Random number that will be read by all other nodes:
+ * pot_generate_random
+ * Step 3b: At all nodes including initial and verifier call this to compute cumulative:
+ * pot_update_cumulative
+ * Step 4: At the verifier:
+ * pot_validate
+ *
+ */
+
+typedef struct pot_profile_
+{
+ u8 id : 1;
+ u8 valid : 1;
+ u8 in_use : 1;
+ u64 random;
+ u8 validator;
+ u64 secret_key;
+ u64 secret_share;
+ u64 prime;
+ u64 lpc;
+ u64 poly_pre_eval;
+ u64 bit_mask;
+ u64 limit;
+ double primeinv;
+ u64 total_pkts_using_this_profile;
+} pot_profile;
+
+typedef struct {
+ /* Name of the default profile list in use*/
+ u8 *profile_list_name;
+ pot_profile profile_list[MAX_POT_PROFILES];
+ /* number of profiles in the list */
+ u8 active_profile_id : 1;
+
+ /* API message ID base */
+ u16 msg_id_base;
+
+ /* convenience */
+ vlib_main_t * vlib_main;
+ vnet_main_t * vnet_main;
+} pot_main_t;
+
+extern pot_main_t pot_main;
+
+/*
+ * Initialize proof of transit
+ */
+int pot_util_init(void);
+void pot_profile_list_init(u8 * name);
+
+
+/*
+ * Find a pot profile by ID
+ */
+pot_profile *pot_profile_find(u8 id);
+
+static inline u16 pot_profile_get_id(pot_profile * profile)
+{
+ if (profile)
+ {
+ return (profile->id);
+ }
+ return (0);
+}
+
+/* setup and clean up profile */
+int pot_profile_create(pot_profile * profile, u64 prime,
+ u64 poly2, u64 lpc, u64 secret_share);
+/*
+ * Setup profile as a validator
+ */
+int pot_set_validator(pot_profile * profile, u64 key);
+
+/*
+ * Setup max bits to be used for random number generation
+ */
+#define MAX_BITS 64
+int pot_profile_set_bit_mask(pot_profile * profile, u16 bits);
+
+/*
+ * Given a random and cumulative compute the new cumulative for a given profile
+ */
+u64 pot_update_cumulative(pot_profile * profile, u64 cumulative, u64 random);
+
+/*
+ * return True if the cumulative matches secret from a profile
+ */
+u8 pot_validate(pot_profile * profile, u64 cumulative, u64 random);
+
+/*
+ * Utility function to get random number per pack
+ */
+u64 pot_generate_random(pot_profile * profile);
+
+
+extern void clear_pot_profiles();
+extern int pot_profile_list_is_enabled(u8 *name);
+
+static inline u8 pot_is_decap(pot_profile * p)
+{
+ return (p->validator == 1);
+}
+
+static inline int pot_profile_set_active (u8 id)
+{
+ pot_main_t *sm = &pot_main;
+ pot_profile *profile = NULL;
+ pot_profile *current_active_prof = NULL;
+
+ current_active_prof = pot_profile_find(sm->active_profile_id);
+ profile = pot_profile_find(id);
+ if (profile && profile->valid) {
+ sm->active_profile_id = id;
+ current_active_prof->in_use = 0;
+ profile->in_use = 1;
+ return(0);
+ }
+ return(-1);
+}
+static inline u8 pot_profile_get_active_id (void)
+{
+ pot_main_t *sm = &pot_main;
+ return (sm->active_profile_id);
+}
+
+static inline pot_profile * pot_profile_get_active (void)
+{
+ pot_main_t *sm = &pot_main;
+ pot_profile *profile = NULL;
+ profile = pot_profile_find(sm->active_profile_id);
+ if (profile && profile->in_use)
+ return(profile);
+ return (NULL);
+}
+
+static inline void pot_profile_reset_usage_stats (pot_profile *pow)
+{
+ if (pow) {
+ pow->total_pkts_using_this_profile = 0;
+ }
+}
+
+static inline void pot_profile_incr_usage_stats (pot_profile *pow)
+{
+ if (pow) {
+ pow->total_pkts_using_this_profile++;
+ }
+}
+
+
+#endif
nobase_include_HEADERS += \
vnet/plugin/plugin.h
-########################################
-# Service Chain verification util
-########################################
-libvnet_la_SOURCES += \
- vnet/lib-scv/scv_util.c
-
-nobase_include_HEADERS += \
- vnet/lib-scv/scv_util.h \
- vnet/lib-scv/math64.h
-
lib_LTLIBRARIES = libvnet.la libvnetplugin.la
dpdk_libs =
#include <vnet/ip/ip6_hop_by_hop.h>
-#include <vnet/lib-scv/scv_util.h>
-
/* Timestamp precision multipliers for seconds, milliseconds, microseconds
* and nanoseconds respectively.
*/
return s;
}
-static u8 * format_ioam_pow (u8 * s, va_list * args)
-{
- ioam_pow_option_t * pow0 = va_arg (*args, ioam_pow_option_t *);
- u64 random, cumulative;
- random = cumulative = 0;
- if (pow0)
- {
- random = clib_net_to_host_u64 (pow0->random);
- cumulative = clib_net_to_host_u64 (pow0->cumulative);
- }
-
- s = format (s, "random = 0x%Lx, Cumulative = 0x%Lx, Index = 0x%x",
- random, cumulative, pow0->reserved_profile_id);
- return s;
-}
-
u8 *
ip6_hbh_ioam_trace_data_list_trace_handler (u8 *s, ip6_hop_by_hop_option_t *opt)
{
return (s);
}
-u8 *
-ip6_hbh_ioam_proof_of_work_trace_handler (u8 *s, ip6_hop_by_hop_option_t *opt)
-{
- ioam_pow_option_t *pow;
-
- s = format (s, " POW opt present\n");
- pow = (ioam_pow_option_t *) opt;
- s = format (s, " %U\n", format_ioam_pow, pow);
- return (s);
-}
-
int
ip6_hbh_ioam_trace_data_list_handler (vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt)
{
return (rv);
}
+/* The main h-b-h tracer will be invoked, no need to do much here */
int
-ip6_hbh_ioam_proof_of_work_handler (vlib_buffer_t *b, ip6_header_t *ip, ip6_hop_by_hop_option_t *opt)
+ip6_hbh_add_register_option (u8 option,
+ u8 size,
+ int rewrite_options(u8 *rewrite_string, u8 rewrite_size))
{
ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main;
- ioam_pow_option_t * pow;
- u64 random = 0, cumulative = 0;
- int rv = 0;
- pow_profile = scv_profile_find(pow_profile_index);
- if (PREDICT_FALSE(!pow_profile)) {
+ ASSERT (option < ARRAY_LEN (hm->add_options));
+
+ /* Already registered */
+ if (hm->add_options[option])
return (-1);
- }
- pow = (ioam_pow_option_t *) opt;
-
- u8 pow_encap = (pow->random == 0);
- if (pow_encap) {
- if (PREDICT_FALSE(total_pkts_using_this_profile >= pow_profile->validity)) {
- /* Choose a new profile */
- u16 new_profile_index;
- new_profile_index = scv_get_next_profile_id(hm->vlib_main, pow_profile_index);
- if (new_profile_index != pow_profile_index) {
- /* Got a new profile */
- scv_profile_invalidate(hm->vlib_main, hm,
- pow_profile_index,
- pow_encap);
- pow_profile_index = new_profile_index;
- pow_profile = scv_profile_find(pow_profile_index);
- total_pkts_using_this_profile = 0;
- } else {
- scv_profile_invalidate(hm->vlib_main, hm, pow_profile_index, pow_encap);
- }
- }
- pow->reserved_profile_id = pow_profile_index & PROFILE_ID_MASK;
- total_pkts_using_this_profile++;
- } else { /* Non encap node */
- if (PREDICT_FALSE(pow->reserved_profile_id != pow_profile_index)) {
- /* New profile announced by encap node. */
- scv_profile *new_profile = 0;
- new_profile = scv_profile_find(pow->reserved_profile_id);
- if (PREDICT_FALSE(new_profile == 0 || new_profile->validity == 0)) {
- /* Profile is invalid. Use old profile*/
- rv = -1;
- scv_profile_invalidate(hm->vlib_main, hm,
- pow->reserved_profile_id,
- pow_encap);
- } else {
- scv_profile_invalidate(hm->vlib_main, hm,
- pow_profile_index,
- pow_encap);
- pow_profile_index = pow->reserved_profile_id;
- pow_profile = new_profile;
- total_pkts_using_this_profile = 0;
- }
- }
- total_pkts_using_this_profile++;
- }
+ hm->add_options[option] = rewrite_options;
+ hm->options_size[option] = size;
+
+ return (0);
+}
- if (pow->random == 0) {
- pow->random = clib_host_to_net_u64(scv_generate_random(pow_profile));
- pow->cumulative = 0;
- }
- random = clib_net_to_host_u64(pow->random);
- cumulative = clib_net_to_host_u64(pow->cumulative);
- pow->cumulative = clib_host_to_net_u64(scv_update_cumulative(pow_profile, cumulative, random));
+int
+ip6_hbh_add_unregister_option (u8 option)
+{
+ ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main;
- return (rv);
+ ASSERT (option < ARRAY_LEN (hm->add_options));
+
+ /* Not registered */
+ if (!hm->add_options[option])
+ return (-1);
+
+ hm->add_options[option] = NULL;
+ hm->options_size[option] = 0;
+ return (0);
}
-/* The main h-b-h tracer will be invoked, no need to do much here */
typedef struct {
u32 next_index;
} ip6_add_hop_by_hop_trace_t;
return s;
}
+int
+ip6_hbh_pop_register_option (u8 option,
+ int options(ip6_header_t *ip, ip6_hop_by_hop_option_t *opt))
+{
+ ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (hm->pop_options));
+
+ /* Already registered */
+ if (hm->pop_options[option])
+ return (-1);
+
+ hm->pop_options[option] = options;
+
+ return (0);
+}
+
+int
+ip6_hbh_pop_unregister_option (u8 option)
+{
+ ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main;
+
+ ASSERT (option < ARRAY_LEN (hm->pop_options));
+
+ /* Not registered */
+ if (!hm->pop_options[option])
+ return (-1);
+
+ hm->pop_options[option] = NULL;
+ return (0);
+}
+
vlib_node_registration_t ip6_pop_hop_by_hop_node;
#define foreach_ip6_pop_hop_by_hop_error \
_(PROCESSED, "Pkts w/ removed ip6 hop-by-hop options") \
-_(NO_HOHO, "Pkts w/ no ip6 hop-by-hop options") \
-_(SCV_PASSED, "Pkts with SCV in Policy") \
-_(SCV_FAILED, "Pkts with SCV out of Policy")
+_(NO_HOHO, "Pkts w/ no ip6 hop-by-hop options") \
+_(OPTION_FAILED, "ip6 pop hop-by-hop failed to process")
typedef enum {
#define _(sym,str) IP6_POP_HOP_BY_HOP_ERROR_##sym,
#undef _
};
-static inline void ioam_end_of_path_validation (vlib_main_t * vm,
+static inline void ioam_pop_hop_by_hop_processing (vlib_main_t * vm,
ip6_header_t *ip0,
ip6_hop_by_hop_header_t *hbh0)
{
+ ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main;
ip6_hop_by_hop_option_t *opt0, *limit0;
- ioam_pow_option_t * pow0;
u8 type0;
- u64 final_cumulative = 0;
- u64 random = 0;
- u8 result = 0;
if (!hbh0 || !ip0) return;
{
type0 = opt0->type;
switch (type0)
- {
- case HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE:
- case HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST:
- opt0 = (ip6_hop_by_hop_option_t *)
- (((u8 *)opt0) + opt0->length
- + sizeof (ip6_hop_by_hop_option_t));
- break;
- case HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK:
- pow0 = (ioam_pow_option_t *) opt0;
- random = clib_net_to_host_u64(pow0->random);
- final_cumulative = clib_net_to_host_u64(pow0->cumulative);
- result = scv_validate (pow_profile,
- final_cumulative, random);
-
- if (result == 1)
- {
- vlib_node_increment_counter (vm, ip6_pop_hop_by_hop_node.index,
- IP6_POP_HOP_BY_HOP_ERROR_SCV_PASSED, result);
- }
- else
- {
- vlib_node_increment_counter (vm, ip6_pop_hop_by_hop_node.index,
- IP6_POP_HOP_BY_HOP_ERROR_SCV_FAILED, 1);
- }
- /* TODO: notify the scv failure*/
- opt0 = (ip6_hop_by_hop_option_t *)
- (((u8 *)opt0) + sizeof (ioam_pow_option_t));
- break;
-
- case 0: /* Pad */
- opt0 = (ip6_hop_by_hop_option_t *) ((u8 *)opt0) + 1;
- break;
-
- default:
- format(0, "Something is wrong\n");
- break;
- }
+ {
+ case 0: /* Pad1 */
+ opt0 = (ip6_hop_by_hop_option_t *) ((u8 *)opt0) + 1;
+ continue;
+ case 1: /* PadN */
+ break;
+ default:
+ if (hm->pop_options[type0])
+ {
+ if ((*hm->pop_options[type0])(ip0, opt0) < 0)
+ {
+ vlib_node_increment_counter (vm, ip6_pop_hop_by_hop_node.index,
+ IP6_POP_HOP_BY_HOP_ERROR_OPTION_FAILED, 1);
+ }
+ }
+ }
+ opt0 = (ip6_hop_by_hop_option_t *) (((u8 *)opt0) + opt0->length + sizeof (ip6_hop_by_hop_option_t));
}
}
-
static uword
ip6_pop_hop_by_hop_node_fn (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main;
ip6_main_t * im = &ip6_main;
ip_lookup_main_t * lm = &im->lookup_main;
u32 n_left_from, * from, * to_next;
ip_lookup_next_t next_index;
u32 processed = 0;
u32 no_header = 0;
- u32 (*ioam_end_of_path_cb) (vlib_main_t *, vlib_node_runtime_t *,
- vlib_buffer_t *, ip6_header_t *,
- ip_adjacency_t *);
-
- ioam_end_of_path_cb = hm->ioam_end_of_path_cb;
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
/* Perfectly normal to end up here w/ out h-b-h header */
hbh0 = (ip6_hop_by_hop_header_t *)(ip0+1);
- /* Collect data from trace via callback */
- next0 = ioam_end_of_path_cb ? ioam_end_of_path_cb (vm, node, b0, ip0, adj0) : next0;
-
/* TODO:Temporarily doing it here.. do this validation in end_of_path_cb */
- ioam_end_of_path_validation(vm, ip0, hbh0);
+ ioam_pop_hop_by_hop_processing(vm, ip0, hbh0);
/* Pop the trace data */
vlib_buffer_advance (b0, (hbh0->length+1)<<3);
new_l0 = clib_net_to_host_u16 (ip0->payload_length) -
hm->vlib_time_0 = vlib_time_now (vm);
hm->ioam_flag = IOAM_HBYH_MOD;
hm->trace_tsp = TSP_MICROSECONDS; /* Micro seconds */
+ memset(hm->add_options, 0, sizeof(hm->add_options));
+ memset(hm->pop_options, 0, sizeof(hm->pop_options));
+ memset(hm->options_size, 0, sizeof(hm->options_size));
/*
* Register the handlers
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_register_option(HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK, ip6_hbh_ioam_proof_of_work_handler,
- ip6_hbh_ioam_proof_of_work_trace_handler) < 0)
- return (clib_error_create("registration of HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK failed"));
return (0);
}
VLIB_INIT_FUNCTION (ip6_hop_by_hop_ioam_init);
int ip6_ioam_set_rewrite (u8 **rwp, u32 trace_type, u32 trace_option_elts,
- int has_pow_option, int has_ppc_option)
+ int has_pot_option, int has_ppc_option)
{
+ ip6_hop_by_hop_ioam_main_t * hm = &ip6_hop_by_hop_ioam_main;
u8 *rewrite = 0;
u32 size, rnd_size;
ip6_hop_by_hop_header_t *hbh;
ioam_trace_option_t * trace_option;
- ioam_pow_option_t * pow_option;
u8 *current;
u8 trace_data_size = 0;
vec_free (*rwp);
- if (trace_option_elts == 0 && has_pow_option == 0)
+ if (trace_option_elts == 0 && has_pot_option == 0)
return -1;
/* Work out how much space we need */
size += trace_option_elts * trace_data_size;
}
- if (has_pow_option)
+ if (has_pot_option && hm->add_options[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT] != 0)
{
size += sizeof (ip6_hop_by_hop_option_t);
- size += sizeof (ioam_pow_option_t);
+ size += hm->options_size[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT];
}
/* Round to a multiple of 8 octets */
current += sizeof (ioam_trace_option_t) +
trace_option_elts * trace_data_size;
}
- if (has_pow_option)
+ if (has_pot_option && hm->add_options[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT] != 0)
{
- pow_option = (ioam_pow_option_t *)current;
- pow_option->hdr.type = HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK
- | HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE;
- pow_option->hdr.length = sizeof (ioam_pow_option_t) -
- sizeof (ip6_hop_by_hop_option_t);
- current += sizeof (ioam_pow_option_t);
+ if (0 == hm->add_options[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT](current,
+ hm->options_size[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT]))
+ current += sizeof (hm->options_size[HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT]);
}
*rwp = rewrite;
hm->app_data = 0;
hm->trace_type = 0;
hm->trace_option_elts = 0;
- hm->has_pow_option = 0;
+ hm->has_pot_option = 0;
hm->has_ppc_option = 0;
hm->trace_tsp = TSP_MICROSECONDS;
clib_error_t *
ip6_ioam_trace_profile_set(u32 trace_option_elts, u32 trace_type, u32 node_id,
- u32 app_data, int has_pow_option, u32 trace_tsp,
+ u32 app_data, int has_pot_option, u32 trace_tsp,
int has_ppc_option)
{
int rv;
ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
rv = ip6_ioam_set_rewrite (&hm->rewrite, trace_type, trace_option_elts,
- has_pow_option, has_ppc_option);
+ has_pot_option, has_ppc_option);
switch (rv)
{
hm->app_data = app_data;
hm->trace_type = trace_type;
hm->trace_option_elts = trace_option_elts;
- hm->has_pow_option = has_pow_option;
+ hm->has_pot_option = has_pot_option;
hm->has_ppc_option = has_ppc_option;
hm->trace_tsp = trace_tsp;
break;
u32 trace_option_elts = 0;
u32 trace_type = 0, node_id = 0;
u32 app_data = 0, trace_tsp = TSP_MICROSECONDS;
- int has_pow_option = 0;
+ int has_pot_option = 0;
int has_ppc_option = 0;
clib_error_t * rv = 0;
&trace_type, &trace_option_elts, &trace_tsp,
&node_id, &app_data))
;
- else if (unformat (input, "pow"))
- has_pow_option = 1;
+ else if (unformat (input, "pot"))
+ has_pot_option = 1;
else if (unformat (input, "ppc encap"))
has_ppc_option = PPC_ENCAP;
else if (unformat (input, "ppc decap"))
rv = ip6_ioam_trace_profile_set(trace_option_elts, trace_type, node_id,
- app_data, has_pow_option, trace_tsp, has_ppc_option);
+ app_data, has_pot_option, trace_tsp, has_ppc_option);
return rv;
}
VLIB_CLI_COMMAND (ip6_set_ioam_rewrite_cmd, static) = {
.path = "set ioam rewrite",
- .short_help = "set ioam rewrite 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> [pow] [ppc <encap|decap>]",
+ .short_help = "set ioam rewrite 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> [pot] [ppc <encap|decap>]",
.function = ip6_set_ioam_rewrite_command_fn,
};
s = format(s, " HOP BY HOP OPTIONS - TRACE CONFIG - Not configured\n");
}
- s = format(s, " POW OPTION - %d (%s)\n",
- hm->has_pow_option, (hm->has_pow_option?"Enabled":"Disabled"));
- if (hm->has_pow_option)
- s = format(s, "Try 'show ioam sc-profile' for more information\n");
+ s = format(s, " POT OPTION - %d (%s)\n",
+ hm->has_pot_option, (hm->has_pot_option?"Enabled":"Disabled"));
+ if (hm->has_pot_option)
+ s = format(s, "Try 'show ioam pot and show pot profile' for more information\n");
s = format(s, " EDGE TO EDGE - PPC OPTION - %d (%s)\n",
hm->has_ppc_option, ppc_state[hm->has_ppc_option]);
u32 node_id;
u32 app_data;
- /* PoW option */
- u8 has_pow_option;
+ /* Pot option */
+ u8 has_pot_option;
#define PPC_NONE 0
#define PPC_ENCAP 1
#define TSP_NANOSECONDS 3
/* Time stamp precision. This is enumerated to above four options */
u32 trace_tsp;
-
+
+ /* 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);
+
/* convenience */
vlib_main_t * vlib_main;
vnet_main_t * vnet_main;
extern u8 * format_path_map(u8 * s, va_list * args);
extern clib_error_t *
ip6_ioam_trace_profile_set(u32 trace_option_elts, u32 trace_type, u32 node_id,
- u32 app_data, int has_pow_option, u32 trace_tsp,
+ u32 app_data, int has_pot_option, u32 trace_tsp,
int has_e2e_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);
return ((a->as_u64[0] == 0) && (a->as_u64[1] == 0));
}
-extern ip6_hop_by_hop_ioam_main_t * hm;
+int ip6_hbh_add_register_option (u8 option,
+ u8 size,
+ int rewrite_options(u8 *rewrite_string, u8 size));
+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 ip6_hbh_pop_unregister_option (u8 option);
+
+
#endif /* __included_ip6_hop_by_hop_ioam_h__ */
/* $$$$ IANA banana constants */
#define HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST 59 /* Third highest bit set (change en-route) */
-#define HBH_OPTION_TYPE_IOAM_PROOF_OF_WORK 60 /* Third highest bit set (change en-route) */
+#define HBH_OPTION_TYPE_IOAM_PROOF_OF_TRANSIT 60 /* Third highest bit set (change en-route) */
#define HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE 29
/*
u32 elts[0]; /* Variable type. So keep it generic */
}) ioam_trace_option_t;
-typedef CLIB_PACKED(struct {
- ip6_hop_by_hop_option_t hdr;
- u8 pow_type;
-#define PROFILE_ID_MASK 0xF
- u8 reserved_profile_id; /* 4 bits reserved, 4 bits to carry profile id */
- u64 random;
- u64 cumulative;
-}) ioam_pow_option_t;
typedef CLIB_PACKED(struct {
ip6_hop_by_hop_option_t hdr;
+++ /dev/null
-/*
- * Copyright (c) 2015 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 "math64.h"
-#include "scv_util.h"
-
-scv_profile *pow_profile = NULL;
-u16 pow_profile_index = 0;
-u64 total_pkts_using_this_profile = 0;
-u8 chain_path_name[PATH_NAME_SIZE];
-scv_profile profile_list[MAX_SERVICE_PROFILES];
-u8 max_profiles = 0;
-u16 invalid_profile_start_index = 0;
-u8 number_of_invalid_profiles = 0;
-f64 next_time_to_send = 0;
-u32 time_exponent = 1;
-vlib_main_t *gvm = 0;
-
-static void scv_profile_init(scv_profile * new, u16 id)
-{
- if (new)
- {
- memset(new, 0, sizeof(scv_profile));
- new->id = id;
- }
-}
-
-/*
- * Get maximum number of profiles configured for this chain.
- */
-u8 scv_get_max_profiles(void)
-{
- return max_profiles;
-}
-
-scv_profile *scv_profile_find(u16 id)
-{
- u8 max = scv_get_max_profiles();
-
- if (id >= 0 && id < max)
- {
- return (&profile_list[id]);
- }
- return (NULL);
-}
-
-u8 sc_init_done = 0;
-void scv_init(u8 * path_name, u8 max, u8 indx)
-{
- int i = 0;
-
- if (sc_init_done)
- {
- return;
- }
- memcpy(chain_path_name, path_name, strlen((const char *)path_name) + 1);
- max_profiles = max;
- pow_profile_index = indx;
-
- for (i = 0; i < max_profiles; i++)
- {
- scv_profile_init(&profile_list[i], i);
- }
-
- sc_init_done = 1;
-}
-
-void scv_profile_cleanup(scv_profile * profile)
-{
- u16 id = profile->id;
-
- memset(profile, 0, sizeof(scv_profile));
- profile->id = id; /* Restore id alone */
-}
-
-void scv_profile_create(scv_profile * profile, u64 prime,
- u64 poly2, u64 lpc, u64 secret_share, u64 validity)
-{
- if (profile)
- {
- scv_profile_cleanup(profile);
- profile->prime = prime;
- profile->primeinv = 1.0 / prime;
- profile->lpc = lpc;
- profile->poly_pre_eval = poly2;
- profile->secret_share = secret_share;
- profile->validity = validity;
- time_exponent = 1; /* Got a new profile. Reset backoff */
- next_time_to_send = 0; /* and send next request with no delay */
- }
-}
-
-void scv_set_validator(scv_profile * profile, u64 key)
-{
- if (profile)
- {
- profile->validator = 1;
- profile->secret_key = key;
- }
-}
-
-static inline u64 sc_update_cumulative(u64 cumulative, u64 random,
- u64 secret_share, u64 prime, u64 lpc, u64 pre_split, double prime_inv)
-{
- u64 share_random = 0;
- u64 cumulative_new = 0;
-
- /*
- * calculate split share for random
- */
- share_random = add64_mod(pre_split, random, prime, prime_inv);
-
- /*
- * lpc * (share_secret + share_random)
- */
- share_random = add64_mod(share_random, secret_share, prime, prime_inv);
- share_random = mul64_mod(share_random, lpc, prime, prime_inv);
-
- cumulative_new = add64_mod(cumulative, share_random, prime, prime_inv);
-
- return (cumulative_new);
-}
-
-u64 scv_update_cumulative(scv_profile * profile, u64 cumulative, u64 random)
-{
- if (profile && profile->validity != 0)
- {
- return (sc_update_cumulative(cumulative, random, profile->secret_share,
- profile->prime, profile->lpc, profile->poly_pre_eval,
- profile->primeinv));
- }
- return (0);
-}
-
-static u8 sc_validate(u64 secret, u64 prime, double prime_inv,
- u64 cumulative, u64 random)
-{
- if (cumulative == (random + secret))
- {
- return (1);
- }
- else if (cumulative == add64_mod(random, secret, prime, prime_inv))
- {
- return (1);
- }
- return (0);
-}
-
-/*
- * return True if the cumulative matches secret from a profile
- */
-u8 scv_validate(scv_profile * profile, u64 cumulative, u64 random)
-{
- if (profile && profile->validator)
- {
- return (sc_validate(profile->secret_key, profile->prime,
- profile->primeinv, cumulative, random));
- }
- return (0);
-}
-
-/*
- * Utility function to get random number per pack
- */
-u64 scv_generate_random(scv_profile * profile)
-{
- u64 random = 0;
- int32_t second_half;
- static u32 seed = 0;
-
- if (PREDICT_FALSE(!seed))
- seed = random_default_seed();
-
- /*
- * Upper 4 bytes seconds
- */
- random = (u64) time(NULL);
-
- random &= 0xffffffff;
- random = random << 32;
- /*
- * Lower 4 bytes random number
- */
- second_half = random_u32(&seed);
-
- random |= second_half;
-
- if (PREDICT_TRUE(profile != NULL))
- {
- random &= profile->bit_mask;
- }
- return (random);
-}
-
-void scv_profile_set_bit_mask(scv_profile * profile, u16 bits)
-{
- int sizeInBits;
-
- if (profile)
- {
- sizeInBits = sizeof(profile->bit_mask) * 8;
- profile->bit_mask =
- (bits >=
- sizeInBits ? (u64) - 1 : (u64) ((u64) 1 << (u64) bits) - 1);
- }
-}
-
-/*
- * TODO: Use vector buffers and hash tables
- */
-#define MAX_SERVICES 16
-
-clib_error_t *clear_scv_profile_command_fn(vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- int i = 0;
-
- if (!sc_init_done)
- return 0;
-
- for (i = 0; i < max_profiles; i++)
- {
- scv_profile_cleanup(&profile_list[i]);
- }
- pow_profile = NULL;
- pow_profile_index = 0;
- total_pkts_using_this_profile = 0;
- memset(chain_path_name, 0, PATH_NAME_SIZE);
- max_profiles = 0;
- invalid_profile_start_index = 0;
- number_of_invalid_profiles = 0;
- next_time_to_send = 0;
- time_exponent = 1;
- sc_init_done = 0;
-
- return 0;
-}
-
-void clear_scv_profiles()
-{
- clear_scv_profile_command_fn(0, 0, 0);
-}
-
-VLIB_CLI_COMMAND(clear_scv_profile_command) =
-{
-.path = "clear scv profile",
-.short_help = "clear scv profile [<index>|all]",
-.function = clear_scv_profile_command_fn,
-};
-
-static clib_error_t *set_scv_profile_command_fn(vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- u64 prime;
- u64 secret_share, validity;
- u64 secret_key;
- u8 validator = 0;
- u16 profile_id;
- u32 bits;
- u64 lpc = 0, poly2 = 0;
- scv_profile *profile = NULL;
-
- bits = MAX_BITS;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat(input, "id %d", &profile_id))
- ;
- else if (unformat(input, "validate-key 0x%Lx", &secret_key))
- validator = 1;
- else if (unformat(input, "prime-number 0x%Lx", &prime))
- ;
- else if (unformat(input, "secret_share 0x%Lx", &secret_share))
- ;
- else if (unformat(input, "polynomial2 0x%Lx", &poly2))
- ;
- else if (unformat(input, "lpc 0x%Lx", &lpc))
- ;
- else if (unformat(input, "validity 0x%Lx", &validity))
- ;
- else if (unformat(input, "bits-in-random %d", &bits))
- {
- if (bits > MAX_BITS)
- bits = MAX_BITS;
- }
- else
- return clib_error_return(0, "unknown input `%U'",
- format_unformat_error, input);
- }
-
- scv_init((u8 *) "TEST", MAX_SERVICE_PROFILES, 0 /* start index */ );
- profile = scv_profile_find(profile_id);
-
- if (profile)
- {
- scv_profile_create(profile, prime, poly2, lpc, secret_share, validity);
- if (validator)
- scv_set_validator(profile, secret_key);
- scv_profile_set_bit_mask(profile, bits);
- }
-
- return 0;
-}
-
-VLIB_CLI_COMMAND(set_scv_profile_command) =
-{
-.path = "set scv profile",
-.short_help = "set scv profile id [0-16] [validator-key 0xu64] \
- prime-number 0xu64 secret_share 0xu64 lpc 0xu64 \
- polynomial2 0xu64 bits-in-random [0-64] ",
-.function = set_scv_profile_command_fn,
-};
-
-static clib_error_t *show_scv_profile_command_fn(vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- scv_profile *p = NULL;
- u16 i;
- u8 *s = 0;
-
- if (sc_init_done == 0)
- {
- s = format(s, "SCV Profiles not configured\n");
- vlib_cli_output(vm, "%v", s);
- return 0;
- }
-
- for (i = 0; i < max_profiles; i++)
- {
- p = scv_profile_find(i);
- if (p->validity == 0)
- continue;
- s = format(s, "SCV Profile at index: %d\n", i);
- s = format(s, " Id : %d\n", p->id);
- s = format(s, " Validator : %s (%d)\n",
- (p->validator) ? "True" : "False", p->validator);
- if (p->validator == 1)
- s = format(s, " Secret key : 0x%Lx (%Ld)\n",
- p->secret_key, p->secret_key);
- s = format(s, " Secret share : 0x%Lx (%Ld)\n",
- p->secret_share, p->secret_share);
- s = format(s, " Prime number : 0x%Lx (%Ld)\n",
- p->prime, p->prime);
- s = format(s, "2nd polynomial(eval) : 0x%Lx (%Ld)\n",
- p->poly_pre_eval, p->poly_pre_eval);
- s = format(s, " LPC : 0x%Lx (%Ld)\n", p->lpc, p->lpc);
-
- s = format(s, " Bit mask : 0x%Lx (%Ld)\n",
- p->bit_mask, p->bit_mask);
- s = format(s, " Validity : 0x%Lx (%Ld)\n",
- p->validity, p->validity);
- }
-
- if (max_profiles)
- {
- p = scv_profile_find(pow_profile_index);
-
- s = format(s, "\nInvalid profiles start : %d Number : %d\n",
- invalid_profile_start_index, number_of_invalid_profiles);
-
- if (next_time_to_send)
- s = format(s, "\nNext time to send : %U, time_exponent:%ld\n",
- format_time_interval, "d:h:m:s:f:u",
- next_time_to_send, time_exponent);
- else
- s = format(s, "\nNext time to send : Immediate\n");
- s = format(s, "\nPath name : %s\n", chain_path_name);
- s = format(s, "\nProfile index in use: %d\n", pow_profile_index);
- s = format(s, "Pkts passed : 0x%Lx (validity:0x%Lx)\n",
- total_pkts_using_this_profile, p->validity);
- if (scv_is_decap(p))
- s = format(s, " This is Decap node. \n");
- vlib_cli_output(vm, "%v", s);
- }
- vec_free(s);
-
- return 0;
-}
-
-VLIB_CLI_COMMAND(show_scv_profile_command) =
-{
-.path = "show scv profile",
-.short_help = "show scv profile",
-.function = show_scv_profile_command_fn,
-};
-
-static clib_error_t *test_profile_renew_refresh_fn(vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- u8 renew_or_refresh = 0;
-
-#define TEST_PROFILE_RENEW 1
-#define TEST_PROFILE_REFRESH 2
- u8 *path_name = 0;
- u32 start_index = 0, num_profiles = 0;
- int rc = 0;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat(input, "path-name %s start-index %d num-profiles %d",
- &path_name, &start_index, &num_profiles))
- ;
- else if (unformat(input, "renew"))
- renew_or_refresh = TEST_PROFILE_RENEW;
- else if (unformat(input, "refresh"))
- renew_or_refresh = TEST_PROFILE_REFRESH;
- else
- break;
- }
-
- if (renew_or_refresh == TEST_PROFILE_RENEW)
- {
-
- rc = scv_profile_renew(path_name, (u8) start_index, (u8) num_profiles);
- }
- else if (renew_or_refresh == TEST_PROFILE_REFRESH)
- {
-
- rc = scv_profile_refresh(path_name, (u8) start_index,
- (u8) num_profiles);
- }
- else
- {
- vec_free(path_name);
- return clib_error_return(0, "Enter renew or refresh");
- }
-
- vlib_cli_output(vm, "%s notification %s. rc = %d\n",
- (renew_or_refresh == TEST_PROFILE_RENEW) ? "Renew" : "Refresh",
- (rc != 0) ? "failed" : "sent", (u32) rc);
-
- vec_free(path_name);
-
- return 0;
-}
-
-VLIB_CLI_COMMAND(test_ioam_profile_renew_refresh_cmd, static) =
-{
-.path = "test ioam profile-notification ",
-.short_help =
- "test ioam profile-notification path-name <string> start-index <index> num-profiles <number> <renew|refresh>",
-.function = test_profile_renew_refresh_fn,
-};
-
-static clib_error_t *set_scv_init_fn(vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- u8 *path_name = 0;
- u32 start_index = 0, num_profiles = 0;
-
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat(input, "path-name %s start-index %d num-profiles %d",
- &path_name, &start_index, &num_profiles))
- scv_init(path_name, num_profiles, start_index);
- else
- return clib_error_return(0, "unknown input `%U'",
- format_unformat_error, input);
- }
- vec_free(path_name);
- return 0;
-}
-
-VLIB_CLI_COMMAND(set_ioam_sc_init_command, static) =
-{
-.path = "set scv-init ",
-.short_help =
- "set scv-init path-name <string> start-index <index> num-profiles <number>",
-.function = set_scv_init_fn,
-};
+++ /dev/null
-/*
- * scv_util.h -- Service chain validation/Proof Of Transit Utility Header
- *
- * Copyright (c) 2015 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_scv_util_h
-#define include_vnet_scv_util_h
-
-#include <vnet/ip/ip6_hop_by_hop.h>
-#define MAXDEGREE 1024
-#define MAXTOKENLEN 128
-#define debug_ioam debug_ioam_fn
-#define MAX_SERVICE_NODES 10
-/* Dont change this size 256. This is there across multiple components */
-#define PATH_NAME_SIZE 256
-
-/* Ring size. this should be same as the one in ODL. Do not change this
- without change in ODL. */
-#define MAX_SERVICE_PROFILES 16
-
-/**
- * Usage:
- *
- * On any [service] node that participates in Service / Path verfication:
- *
- * Step 1: Initialize this library by calling scv_init()
- * Step 2: Setup a Service chain validation profile that contains all the parameters needed to compute cumulative:
- * Call these functions:
- * scv_profile_find
- * scv_profile_create
- * scv_profile_set_bit_mask - To setup how large we want the numbers used in the computation and random number <= 64 bits
- * Step 2a: For validator do this:
- * scv_set_validator
- * Step 3a: At the initial Service node to generate Random number that will be read by all other nodes:
- * scv_generate_random
- * Step 3b: At all service nodes including initial and verifier call this to compute cumulative:
- * scv_update_cumulative
- * Step 4: At the verifier:
- * scv_validate
- *
- */
-
-typedef struct scv_profile_
-{
- u16 id;
- u64 random;
- u8 validator;
- u64 secret_key;
- u64 secret_share;
- u64 prime;
- u64 lpc;
- u64 poly_pre_eval;
- u64 bit_mask;
- u64 limit;
- u64 validity;
- double primeinv;
- // struct hlist_node my_hash_list; when this gets added to hashtbale
-} scv_profile;
-
-extern scv_profile *pow_profile;
-extern u16 pow_profile_index;
-extern u64 total_pkts_using_this_profile;
-extern u8 chain_path_name[PATH_NAME_SIZE];
-extern u16 invalid_profile_start_index;
-extern u8 number_of_invalid_profiles;
-extern f64 next_time_to_send;
-extern u32 time_exponent;
-
-/*
- * Initialize Service chain
- */
-void scv_init(u8 * path_name, u8 max, u8 indx);
-
-/*
- * Get maximum number of profiles configured for this chain.
- */
-u8 scv_get_max_profiles(void);
-
-/*
- * Find a SC profile by ID
- */
-scv_profile *scv_profile_find(u16 id);
-
-static inline u16 scv_profile_get_id(scv_profile * profile)
-{
- if (profile)
- {
- return (profile->id);
- }
- return (0);
-}
-
-/* setup and clean up profile */
-void scv_profile_create(scv_profile * profile, u64 prime,
- u64 poly2, u64 lpc, u64 secret_share, u64 validity);
-/*
- * Setup profile as a validator
- */
-void scv_set_validator(scv_profile * profile, u64 key);
-void scv_profile_cleanup(scv_profile * profile);
-
-/*
- * Setup max bits to be used for random number generation
- */
-#define MAX_BITS 64
-void scv_profile_set_bit_mask(scv_profile * profile, u16 bits);
-
-/*
- * Given a random and cumulative compute the new cumulative for a given profile
- */
-u64 scv_update_cumulative(scv_profile * profile, u64 cumulative, u64 random);
-
-/*
- * return True if the cumulative matches secret from a profile
- */
-u8 scv_validate(scv_profile * profile, u64 cumulative, u64 random);
-
-/*
- * Utility function to get random number per pack
- */
-u64 scv_generate_random(scv_profile * profile);
-
-int scv_profile_to_str(scv_profile * profile, char *buf, int n);
-
-extern void clear_ioam_scv_profiles();
-
-static inline u8 scv_get_profile_in_use(void)
-{
- return pow_profile_index;
-}
-
-static inline
- void scv_notification_reset(u16 start_index_recvd, u8 num_profiles_recvd)
-{
- /* Profiles recevied w/o notn. Nothing to do. */
- if (number_of_invalid_profiles == 0)
- return;
-
- /* Most likely case. Got all requested profiles */
- if (PREDICT_TRUE(num_profiles_recvd == number_of_invalid_profiles &&
- start_index_recvd == invalid_profile_start_index))
- {
- number_of_invalid_profiles = 0;
- invalid_profile_start_index = 0;
- return;
- }
-
- /* Received partial list */
- if (num_profiles_recvd < number_of_invalid_profiles)
- {
- ASSERT(start_index_recvd == invalid_profile_start_index);
- invalid_profile_start_index = (start_index_recvd + num_profiles_recvd)
- % scv_get_max_profiles();
- number_of_invalid_profiles -= num_profiles_recvd;
- }
-
- return;
-}
-
-int __attribute__ ((weak)) scv_profile_renew(u8 * path_name,
- u8 start_index, u8 num_profiles);
-int __attribute__ ((weak)) scv_profile_refresh(u8 * path_name,
- u8 start_index, u8 num_profiles);
-
-static inline u8 scv_is_decap(scv_profile * p)
-{
- return (p->validator == 1);
-}
-
-static inline u16 scv_get_next_profile_id(vlib_main_t * vm, u16 id)
-{
- int next_id, num_profiles = 0;
- scv_profile *p;
- u8 max;
-
- max = scv_get_max_profiles();
-
- next_id = id;
-
- /* Check for new profile in the ring buffer until a valid one. Exclude
- checking for the one already in use. */
- for (num_profiles = 0; num_profiles < max - 1; num_profiles++)
- {
- next_id = (next_id + 1) % max;
- p = scv_profile_find(next_id);
- if (p->validity != 0)
- {
- vlib_cli_output(vm, "Current id: %d, New id: %d\n", id, next_id);
- return (next_id);
- }
- }
-
- return (id);
-}
-
-static inline void
-scv_profile_invalidate(vlib_main_t * vm, ip6_hop_by_hop_ioam_main_t * hm,
- u16 id, u8 is_encap)
-{
- scv_profile *p = scv_profile_find(id);
- int rc;
- u8 max;
- f64 now = 0;
-
- p->validity = 0;
-
- /* If there are alredy profiles waiting. If so, use existing start_index.
- */
- if (!number_of_invalid_profiles)
- invalid_profile_start_index = id;
-
- max = scv_get_max_profiles();
-
- /* Check whether the id is already included in existing list */
- if (!(id >= invalid_profile_start_index &&
- id <= (invalid_profile_start_index +
- number_of_invalid_profiles - 1) % max))
- {
- number_of_invalid_profiles++;
- }
-
- if (number_of_invalid_profiles > scv_get_max_profiles())
- number_of_invalid_profiles = scv_get_max_profiles();
-
- now = (f64) (((f64) hm->unix_time_0) +
- (vlib_time_now(hm->vlib_main) - hm->vlib_time_0));
- if (now <= next_time_to_send)
- return;
-
- if (is_encap)
- {
- rc = scv_profile_renew(chain_path_name,
- (u8) invalid_profile_start_index, number_of_invalid_profiles);
- if (rc != 0)
- vlib_cli_output(vm,
- "Renew notification- id start:%d, num %d failed. rc: %d\n",
- invalid_profile_start_index, number_of_invalid_profiles, rc);
- else
- vlib_cli_output(vm,
- "Renew notification- id start:%d num %d sent. \n",
- invalid_profile_start_index, number_of_invalid_profiles);
-
- }
- else
- {
- /* Non encap node. Send refresh notification for now. Later set a
- timer and if there is no profile even after the timeout send
- refresh notification. */
- rc = scv_profile_refresh(chain_path_name,
- (u8) invalid_profile_start_index, number_of_invalid_profiles);
- if (rc != 0)
- vlib_cli_output(vm,
- "Refresh notification- id start:%d, num %d failed. rc: %d\n",
- invalid_profile_start_index, number_of_invalid_profiles, rc);
- else
- vlib_cli_output(vm,
- "Refresh notification- id start:%d num %d sent. \n",
- invalid_profile_start_index, number_of_invalid_profiles);
- }
- next_time_to_send = now + time_exponent;
- time_exponent <<= 1; /* backoff time is power of 2 seconds */
-
- return;
-}
-
-#endif
Code Review / vpp.git / commitdiff