csit - Integration tests

Age	Commit message (Expand)	Author	Files	Lines
2021-04-21	Infra: Vagrant upgrade to focal	pmikus	1	-6/+6
2020-07-28	Docs testing_in_vagrant: add header sections and make command line codes more...	Martin Balaz	1	-26/+65
2019-05-03	Update KVM methodology	Peter Mikus	1	-3/+6
2019-04-09	Add vagrant setup for testing VPP device locally	Ludovit Mikula	1	-0/+46

#include <vnet/vnet.h> #include <vlibmemory/api.h> #include <vnet/vnet_msg_enum.h> #include <vnet/ip/ip6.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip6_neighbor.h> #include <signal.h> #include <math.h> #define vl_typedefs /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_typedefs #define vl_endianfun /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_endianfun #include <vlibapi/api_helper_macros.h> #define foreach_rd_cp_msg \ _(IP6_ND_ADDRESS_AUTOCONFIG, ip6_nd_address_autoconfig) typedef struct { u32 sw_if_index; u8 address_length; ip6_address_t address; f64 due_time; } slaac_address_t; typedef struct { u32 sw_if_index; ip6_address_t router_address; f64 due_time; } default_route_t; typedef struct { u8 enabled; u8 install_default_routes; } interface_config_t; typedef struct { u8 enabled; u8 events_on; interface_config_t *config_by_sw_if_index; slaac_address_t *slaac_address_pool; default_route_t *default_route_pool; /* binary API client */ u8 api_connected; svm_queue_t *vl_input_queue; u32 my_client_index; /* convenience */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; api_main_t *api_main; u32 node_index; } rd_cp_main_t; rd_cp_main_t rd_cp_main; enum { RD_CP_EVENT_INTERRUPT, }; #define vl_api_ip6_nd_address_autoconfig_t_print vl_noop_handler static void router_solicitation_start_stop (u32 sw_if_index, u8 start) { rd_cp_main_t *rm = &rd_cp_main; icmp6_send_router_solicitation_params_t params = { 0, }; if (start) { params.irt = 1; params.mrt = 120; } icmp6_send_router_solicitation (rm->vlib_main, sw_if_index, !start, &params); } static void interrupt_process (void); static int add_slaac_address (vlib_main_t * vm, u32 sw_if_index, u8 address_length, ip6_address_t * address, f64 due_time) { rd_cp_main_t *rm = &rd_cp_main; slaac_address_t *slaac_address; clib_error_t *rv = 0; pool_get (rm->slaac_address_pool, slaac_address); slaac_address->sw_if_index = sw_if_index; slaac_address->address_length = address_length; slaac_address->address = *address; slaac_address->due_time = due_time; rv = ip6_add_del_interface_address (vm, sw_if_index, &slaac_address->address, address_length, 0); return rv != 0; } int ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp); static int add_default_route (vlib_main_t * vm, u32 sw_if_index, ip6_address_t * next_hop_address, f64 due_time) { rd_cp_main_t *rm = &rd_cp_main; default_route_t *default_route; vl_api_ip_add_del_route_t mp = { 0, }; int rv; pool_get (rm->default_route_pool, default_route); default_route->sw_if_index = sw_if_index; default_route->router_address = *next_hop_address; default_route->due_time = due_time; mp.is_add = 1; mp.is_ipv6 = 1; mp.dst_address_length = 0; mp.next_hop_sw_if_index = htonl (default_route->sw_if_index); clib_memcpy (mp.next_hop_address, default_route->router_address.as_u8, 16); rv = ip6_add_del_route_t_handler (&mp); return rv; } static int remove_slaac_address (vlib_main_t * vm, slaac_address_t * slaac_address) { clib_error_t *rv = 0; rv = ip6_add_del_interface_address (vm, slaac_address->sw_if_index, &slaac_address->address, slaac_address->address_length, 1); return rv != 0; } static int remove_default_route (vlib_main_t * vm, default_route_t * default_route) { rd_cp_main_t *rm = &rd_cp_main; vl_api_ip_add_del_route_t mp = { 0, }; int rv; mp.is_add = 0; mp.is_ipv6 = 1; mp.dst_address_length = 0; mp.next_hop_sw_if_index = htonl (default_route->sw_if_index); clib_memcpy (mp.next_hop_address, default_route->router_address.as_u8, 16); rv = ip6_add_del_route_t_handler (&mp); if (!rv) pool_put (rm->default_route_pool, default_route); return rv; } static u32 get_interface_mac_address (u32 sw_if_index, u8 mac[]) { rd_cp_main_t *rm = &rd_cp_main; vnet_sw_interface_t *si; ethernet_interface_t *eth_if = 0; if (!vnet_sw_interface_is_api_valid (rm->vnet_main, sw_if_index)) { clib_warning ("Invalid sw_if_index"); return 1; } si = vnet_get_sup_sw_interface (rm->vnet_main, sw_if_index); if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE) eth_if = ethernet_get_interface (&ethernet_main, si->hw_if_index); clib_memcpy (mac, eth_if->address, 6); return 0; } static u32 ip6_enable (u32 sw_if_index) { rd_cp_main_t *rm = &rd_cp_main; clib_error_t *rv; rv = enable_ip6_interface (rm->vlib_main, sw_if_index); return rv != 0; } static u8 ip6_prefixes_equal (ip6_address_t * prefix1, ip6_address_t * prefix2, u8 len) { if (len >= 64) { if (prefix1->as_u64[0] != prefix2->as_u64[0]) return 0; if (len == 64) return 1; return prefix1->as_u64[1] >> (128 - len) == prefix2->as_u64[1] >> (128 - len); } return prefix1->as_u64[0] >> (64 - len) == prefix2->as_u64[0] >> (64 - len); } #define PREFIX_FLAG_A (1 << 6) #define PREFIX_FLAG_L (1 << 7) static clib_error_t * ip6_ra_report_handler (void *data) { rd_cp_main_t *rm = &rd_cp_main; vlib_main_t *vm = rm->vlib_main; clib_error_t *error = 0; ra_report_t *r = data; interface_config_t *if_config; default_route_t *default_route; slaac_address_t *slaac_address; u32 sw_if_index; u16 router_lifetime_in_sec; u32 n_prefixes; ra_report_prefix_info_t *prefix; u8 mac[6]; f64 current_time; u32 i; current_time = vlib_time_now (vm); sw_if_index = r->sw_if_index; if (sw_if_index >= vec_len (rm->config_by_sw_if_index)) return 0; if_config = &rm->config_by_sw_if_index[sw_if_index]; if (if_config->install_default_routes) { router_lifetime_in_sec = r->router_lifetime_in_sec; u8 route_already_present = 0; /* *INDENT-OFF* */ pool_foreach (default_route, rm->default_route_pool, ({ if (default_route->sw_if_index != sw_if_index) ; else if (0 != memcmp (&default_route->router_address, r->router_address, 16)) ; else { route_already_present = 1; goto default_route_pool_foreach_out; } })); /* *INDENT-ON* */ default_route_pool_foreach_out: if (!route_already_present) { if (router_lifetime_in_sec != 0) add_default_route (vm, sw_if_index, (void *) r->router_address, current_time + router_lifetime_in_sec); } else { if (router_lifetime_in_sec != 0) default_route->due_time = current_time + router_lifetime_in_sec; else remove_default_route (vm, default_route); } } if (get_interface_mac_address (sw_if_index, mac) != 0) { clib_warning ("Error getting MAC address"); return clib_error_return (0, "Error getting MAC address"); } if (!if_config->enabled) return 0; n_prefixes = vec_len (r->prefixes); for (i = 0; i < n_prefixes; i++) { ip6_address_t *dst_address; u8 prefix_length; u32 valid_time; u32 preferred_time; f64 due_time; prefix = &r->prefixes[i]; if (!(prefix->flags & PREFIX_FLAG_A)) continue; dst_address = &prefix->dst_address; prefix_length = prefix->dst_address_length; if (ip6_address_is_link_local_unicast (dst_address)) continue; valid_time = prefix->valid_time; preferred_time = prefix->preferred_time; if (preferred_time > valid_time) continue; if (prefix_length != 64) continue; u8 address_already_present = 0; /* *INDENT-OFF* */ pool_foreach (slaac_address, rm->slaac_address_pool, ({ if (slaac_address->sw_if_index != sw_if_index) ; else if (slaac_address->address_length != prefix_length) ; else if (!ip6_prefixes_equal (&slaac_address->address, dst_address, prefix_length)) ; else { address_already_present = 1; goto slaac_address_pool_foreach_out; } })); /* *INDENT-ON* */ slaac_address_pool_foreach_out: if (address_already_present) { f64 remaining_life_time = slaac_address->due_time - current_time; if (valid_time > 2 * 60 * 60 || valid_time > remaining_life_time) slaac_address->due_time = current_time + valid_time; else if (remaining_life_time > 2 * 60 * 60) slaac_address->due_time = current_time + 2 * 60 * 60; continue; } if (valid_time == 0) continue; due_time = current_time + valid_time; ip6_address_t addr; addr.as_u64[0] = dst_address->as_u64[0]; /* Invert the "u" bit */ addr.as_u8[8] = mac[0] ^ (1 << 1); addr.as_u8[9] = mac[1]; addr.as_u8[10] = mac[2]; addr.as_u8[11] = 0xFF; addr.as_u8[12] = 0xFE; addr.as_u8[13] = mac[3]; addr.as_u8[14] = mac[4]; addr.as_u8[15] = mac[5]; add_slaac_address (vm, sw_if_index, prefix_length, &addr, due_time); } interrupt_process (); return error; } VNET_IP6_NEIGHBOR_RA_FUNCTION (ip6_ra_report_handler); static uword rd_cp_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f) { uword *event_data = 0; rd_cp_main_t *rm = &rd_cp_main; slaac_address_t *slaac_address; default_route_t *default_route; f64 sleep_time = 1e9; f64 current_time; f64 due_time; while (1) { vlib_process_wait_for_event_or_clock (vm, sleep_time); vlib_process_get_events (vm, &event_data); vec_reset_length (event_data); current_time = vlib_time_now (vm); do { due_time = current_time + 1e9; /* *INDENT-OFF* */ pool_foreach (slaac_address, rm->slaac_address_pool, ({ if (slaac_address->due_time > current_time) { if (slaac_address->due_time < due_time) due_time = slaac_address->due_time; } else { remove_slaac_address (vm, slaac_address); /* make sure ip6 stays enabled */ ip6_enable (slaac_address->sw_if_index); } })); pool_foreach (default_route, rm->default_route_pool, ({ if (default_route->due_time > current_time) { if (default_route->due_time < due_time) due_time = default_route->due_time; } else remove_default_route (vm, default_route); })); /* *INDENT-ON* */ current_time = vlib_time_now (vm); } while (due_time < current_time); sleep_time = due_time - current_time; } return 0; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (rd_cp_process_node) = { .function = rd_cp_process, .type = VLIB_NODE_TYPE_PROCESS, .name = "rd-cp-process", }; /* *INDENT-ON* */ static void interrupt_process (void) { rd_cp_main_t *rm = &rd_cp_main; vlib_main_t *vm = rm->vlib_main; vlib_process_signal_event (vm, rd_cp_process_node.index, RD_CP_EVENT_INTERRUPT, 0); } static int set_address_autoconfig (u32 sw_if_index, u8 enable, u8 install_default_routes) { rd_cp_main_t *rm = &rd_cp_main; vlib_main_t *vm = rm->vlib_main; vnet_main_t *vnm = rm->vnet_main; interface_config_t *if_config; interface_config_t empty_config = { 0, 0 }; slaac_address_t *slaac_address; default_route_t *default_route; if (!enable) install_default_routes = 0; if (!vnet_sw_interface_is_api_valid (vnm, sw_if_index)) { clib_warning ("Invalid sw_if_index"); return 1; } if (!rm->enabled) { /* process kickoff */ interrupt_process (); rm->enabled = 1; } vec_validate_init_empty (rm->config_by_sw_if_index, sw_if_index, empty_config); if_config = &rm->config_by_sw_if_index[sw_if_index]; if (!if_config->enabled && enable) ip6_enable (sw_if_index); if ((!if_config->enabled && enable) || (!if_config->install_default_routes && install_default_routes)) router_solicitation_start_stop (sw_if_index, 1); else if (if_config->enabled && !enable) router_solicitation_start_stop (sw_if_index, 0); if (if_config->enabled && !enable) { /* *INDENT-OFF* */ pool_foreach (slaac_address, rm->slaac_address_pool, ({ remove_slaac_address (vm, slaac_address); })); /* *INDENT-ON* */ } if (if_config->install_default_routes && !install_default_routes) { /* *INDENT-OFF* */ pool_foreach (default_route, rm->default_route_pool, ({ remove_default_route (vm, default_route); })); /* *INDENT-ON* */ } if_config->enabled = enable; if_config->install_default_routes = install_default_routes; return 0; } static clib_error_t * ip6_nd_address_autoconfig (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { rd_cp_main_t *rm = &rd_cp_main; vnet_main_t *vnm = rm->vnet_main; clib_error_t *error = 0; u32 sw_if_index = ~0; u8 enable = 1; u8 default_route = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index)) ; if (unformat (input, "default-route")) default_route = 1; if (unformat (input, "disable")) enable = 0; else break; } if (sw_if_index != ~0) { if (set_address_autoconfig (sw_if_index, enable, default_route) != 0) error = clib_error_return (0, "Invalid sw_if_index"); } else error = clib_error_return (0, "Missing sw_if_index"); return error; } /*? * This command is used to enable ND address autoconfiguration * on particular interface including setting up default routes. * * @cliexpar * @parblock * Example of how to enable ND address autoconfiguration: * @cliexcmd{ip6 nd address autoconfig GigabitEthernet2/0/0} * Example of how to enable ND address autoconfiguration * with setting up default routes: * @cliexcmd{ip6 nd address autoconfig GigabitEthernet2/0/0 default-route} * Example of how to disable ND address autoconfiguration: * @cliexcmd{ip6 nd address autoconfig GigabitEthernet2/0/0 disable} * @endparblock ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (ip6_nd_address_autoconfig_command, static) = { .path = "ip6 nd address autoconfig", .short_help = "ip6 nd address autoconfig <interface> [default-route|disable]", .function = ip6_nd_address_autoconfig, }; /* *INDENT-ON* */ static void vl_api_ip6_nd_address_autoconfig_t_handler (vl_api_ip6_nd_address_autoconfig_t * mp) { vl_api_ip6_nd_address_autoconfig_reply_t *rmp; u32 sw_if_index; int rv = 0; VALIDATE_SW_IF_INDEX (mp); sw_if_index = ntohl (mp->sw_if_index); rv = set_address_autoconfig (sw_if_index, mp->enable, mp->install_default_routes); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY); } #define vl_msg_name_crc_list #include <vnet/ip/rd_cp.api.h> #undef vl_msg_name_crc_list static void setup_message_id_table (api_main_t * am) { #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id); foreach_vl_msg_name_crc_rd_cp; #undef _ } static clib_error_t * rd_cp_init (vlib_main_t * vm) { rd_cp_main_t *rm = &rd_cp_main; api_main_t *am = &api_main; rm->vlib_main = vm; rm->vnet_main = vnet_get_main (); rm->api_main = am; rm->node_index = rd_cp_process_node.index; #define _(N,n) \ vl_msg_api_set_handlers(VL_API_##N, #n, \ vl_api_##n##_t_handler, \ vl_noop_handler, \ vl_api_##n##_t_endian, \ vl_api_##n##_t_print, \ sizeof(vl_api_##n##_t), 0/* do NOT trace! */); foreach_rd_cp_msg; #undef _ /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (am); return 0; } VLIB_INIT_FUNCTION (rd_cp_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */