diff options
Diffstat (limited to 'vpp-api')
| -rw-r--r-- | vpp-api/lua/README.md | 55 | ||||
| -rw-r--r-- | vpp-api/lua/bench.lua | 73 | ||||
| -rw-r--r-- | vpp-api/lua/cough.c | 183 | ||||
| -rw-r--r-- | vpp-api/lua/examples/cli/README.md | 5 | ||||
| -rw-r--r-- | vpp-api/lua/examples/cli/lua-cli.lua | 745 | ||||
| -rw-r--r-- | vpp-api/lua/examples/example-acl-plugin.lua | 110 | ||||
| -rw-r--r-- | vpp-api/lua/examples/example-classifier.lua | 51 | ||||
| -rw-r--r-- | vpp-api/lua/examples/example-cli.lua | 45 | ||||
| -rw-r--r-- | vpp-api/lua/examples/lute/README.md | 66 | ||||
| -rw-r--r-- | vpp-api/lua/examples/lute/lute.lua | 777 | ||||
| -rw-r--r-- | vpp-api/lua/examples/lute/script-inout-acl-noacl.lute | 329 | ||||
| -rw-r--r-- | vpp-api/lua/examples/lute/script-inout-acl-old.lute | 329 | ||||
| -rw-r--r-- | vpp-api/lua/examples/lute/script-inout-acl.lute | 329 | ||||
| -rw-r--r-- | vpp-api/lua/examples/lute/script.lute | 7 | ||||
| -rw-r--r-- | vpp-api/lua/examples/lute/sessions-acl.lute | 308 | ||||
| -rw-r--r-- | vpp-api/lua/vpp-lapi.lua | 752 |
16 files changed, 4164 insertions, 0 deletions
diff --git a/vpp-api/lua/README.md b/vpp-api/lua/README.md new file mode 100644 index 00000000000..3fc93b888a9 --- /dev/null +++ b/vpp-api/lua/README.md @@ -0,0 +1,55 @@ +This is the experimental version of Lua API, aimed for the luajit use. + +Please take a look and send the feedback to ayourtch@gmail.com. + +To run the examples here: + +1) install luajit - "sudo apt-get install luajit" on ubuntu + +2) make build-vpp-api in the top directory + +3) "make" in this directory to build libcough.so + +4) "make run" in a separate terminal window + +5) sudo luajit examples/example-cli.lua + +This will result in something like this: + +libcough detected + +Version: 17.01-rc0~37-g8b3191e +00000000 31 37 2E 30 31 2D 72 63 30 7E 33 37 2D 67 38 62 17.01-rc0~37-g8b +00000010 33 31 39 31 65 00 00 00 00 00 00 00 00 00 00 00 3191e........... + +{ [1] = { ["luaapi_message_name"] = show_version_reply,["program"] = vpe,["version"] = 17.01-rc0~37-g8b3191e,["build_date"] = Fri Nov 11 15:30:21 UTC 2016,["retval"] = 0,["build_directory"] = /home/ubuntu/vpp,["_vl_msg_id"] = 166,["context"] = 0,} ,} +--- +{ [1] = { ["luaapi_message_name"] = cli_inband_reply,["_vl_msg_id"] = 90,["length"] = 94,["reply"] = vpp v17.01-rc0~37-g8b3191e built by ubuntu on vpp-lapi-commit at Fri Nov 11 15:30:21 UTC 2016 +,["retval"] = 0,["context"] = 0,} ,} +--- + +6) You can also run the performance test bench: + +$ sudo luajit bench.lua +libcough detected + +10001 iterations, average speed 4108LL per second +10001 iterations, average speed 4660LL per second +10001 iterations, average speed 4095LL per second +10001 iterations, average speed 4542LL per second +10001 iterations, average speed 8048LL per second +10001 iterations, average speed 6805LL per second +10001 iterations, average speed 5170LL per second +10001 iterations, average speed 6585LL per second +10001 iterations, average speed 6714LL per second +10001 iterations, average speed 6942LL per second +Average tps across the tests: 5766LL + +Note: the above is run in an lxd container running inside 2-core +xhyve VM on a Macbook Pro, so I would not take the performance numbers for granted :) + +The "examples" directory contains a few naive examples, as well as a couple of more +advanced ones - a tab-completing CLI for VPP that can call both the APIs and CLI, +and also a small test utility which I use for automating some small tests using +VPP. + diff --git a/vpp-api/lua/bench.lua b/vpp-api/lua/bench.lua new file mode 100644 index 00000000000..edff32b90d6 --- /dev/null +++ b/vpp-api/lua/bench.lua @@ -0,0 +1,73 @@ +--[[ +/* + * 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. + */ +]] + +local vpp = require "vpp-lapi" + +local ffi = require "ffi" + +ffi.cdef([[ + struct timespec { + long tv_sec; /* seconds */ + long tv_nsec; /* nanoseconds */ + }; + + int clock_gettime(int clk_id, struct timespec *tp); +]]) + + +local time_cache = ffi.new("struct timespec[1]") +local time_cache_1 = time_cache[0] +function get_ns() + ffi.C.clock_gettime(0, time_cache) + return time_cache_1.tv_nsec + 1000000000 * time_cache_1.tv_sec +end + +function do_bench() + local cycle_start = get_ns() + local n_iterations = 10000 + local count = 1 + for i = 1,n_iterations do + -- print(i) + vpp:api_call("show_version") + count = count + 1 + -- print(i, "done") + end + cycle_end = get_ns() + local tps = n_iterations*1000000000LL/(cycle_end - cycle_start) + print (tostring(count) .. " iterations, average speed " .. tostring(tps) .. " per second") + return tps +end + +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" + +vpp:init({ pneum_path = pneum_path }) + +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") + +vpp:connect("lua-bench") +local n_tests = 10 +local tps_acc = 0LL +for i=1,n_tests do + tps_acc = tps_acc + do_bench() +end +print("Average tps across the tests: " .. tostring(tps_acc/n_tests)) + +vpp:disconnect() + + diff --git a/vpp-api/lua/cough.c b/vpp-api/lua/cough.c new file mode 100644 index 00000000000..4251c732202 --- /dev/null +++ b/vpp-api/lua/cough.c @@ -0,0 +1,183 @@ +/* + * 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. + */ + +/* + * This is a temporary helper library to seamlessly run against + * the current API as exposed by libpneum. + * In the future once the sync API is exposed as well as + * a way to free the received data, this can go away. + */ + +#include <dlfcn.h> +#include <stdio.h> +#include <string.h> +#include <stdint.h> +#include <stdlib.h> +#include <pthread.h> + +pthread_mutex_t mut; +pthread_mutex_t *cb_lock = &mut; + +void *pneum_handle = NULL; + +typedef void* (*arbitrary)(); + +int (*orig_pneum_connect)(char *name, char *chroot_prefix) = NULL; +int (*orig_pneum_connect_sync)(char *name, char *chroot_prefix) = NULL; +int (*orig_pneum_disconnect)(void) = NULL; +int (*orig_pneum_read)(char **data, int *l) = NULL; +int (*orig_pneum_write)(char *data, int len) = NULL; +int (*orig_pneum_has_data)(void) = NULL; +int (*orig_pneum_data_free)(char *data) = NULL; + +arbitrary my_function = NULL; + +typedef uint8_t u8; +typedef uint32_t u32; + +u8 *cough_read_buffer; +u32 cough_read_buffer_size = 1000000; +u32 cough_read_head = 0; +u32 cough_read_lock_start = 0; /* lock_start till head is busy memory */ +u32 cough_read_tail = 0; + + +int wrap_pneum_callback(char *data, int len) { + // printf("Cough callback! with %d bytes\n", len); + pthread_mutex_lock(cb_lock); + if(cough_read_lock_start == cough_read_head) { + // printf("Reset read head!\n"); + cough_read_head = 0; + cough_read_tail = 0; + cough_read_lock_start = 0; + } + u32 store_len = len; + memcpy(cough_read_buffer + cough_read_head, &store_len, sizeof(u32)); + cough_read_head += sizeof(u32); + memcpy(cough_read_buffer + cough_read_head, data, len); + cough_read_head += len; + pthread_mutex_unlock(cb_lock); + return len; +} + +int cough_pneum_attach(char *pneum_fname, char *cough_fname) { + /* this is needed to make the pneum aware of the wrap_pneum_callback */ + pneum_handle = dlopen(cough_fname, RTLD_NOW|RTLD_GLOBAL); + /* now let's try to load pneum itself */ + pneum_handle = dlopen(pneum_fname, RTLD_NOW|RTLD_GLOBAL); + if (pneum_handle) { + *(void**)(&orig_pneum_connect) = dlsym(pneum_handle,"pneum_connect"); + *(void**)(&orig_pneum_connect_sync) = dlsym(pneum_handle,"pneum_connect_sync"); + *(void**)(&orig_pneum_disconnect) = dlsym(pneum_handle,"pneum_disconnect"); + *(void**)(&orig_pneum_read) = dlsym(pneum_handle,"pneum_read"); + *(void**)(&orig_pneum_write) = dlsym(pneum_handle,"pneum_write"); + *(void**)(&orig_pneum_has_data) = dlsym(pneum_handle,"pneum_has_data"); + *(void**)(&orig_pneum_data_free) = dlsym(pneum_handle,"pneum_data_free"); + // If you uncomment the below line we pretend we have an async-only libpneum + orig_pneum_connect_sync = NULL; + cough_read_buffer = malloc(cough_read_buffer_size); + } else { + printf("Could not get cough handle\n"); + printf("Error: %s", dlerror()); + return -1; + } + + *(void**)(&my_function) = dlsym(pneum_handle,"something"); +} + + +int pneum_connect(char *name, char *chroot_prefix) { + if(orig_pneum_connect) { + return(orig_pneum_connect(name, chroot_prefix)); + } else { + printf("COUGH: pneum_connect\n"); + return -1; + } +} +int pneum_connect_sync(char *name, char *chroot_prefix) { + if(orig_pneum_connect_sync) { + int ret = (orig_pneum_connect_sync(name, chroot_prefix)); + return ret; + } else { + return(orig_pneum_connect(name, chroot_prefix)); + } +} + + +int pneum_disconnect(void) { + if(orig_pneum_disconnect) { + return orig_pneum_disconnect(); + } else { + printf("COUGH: pneum_disconnect\n"); + return -1; + } +} + +int pneum_has_data(void) { + if (orig_pneum_connect_sync) { + /* always return 1 in a pass-through case */ + return 1; + } else { + // printf("COUGH: pneum_has_data\n"); + return (cough_read_head != cough_read_tail); + } +} + + +int pneum_read(char **data, int *l) { + if(orig_pneum_connect_sync) { + return orig_pneum_read(data, l); + } else { + while(!pneum_has_data()); + u32 n_bytes; + pthread_mutex_lock(cb_lock); + memcpy(&n_bytes, cough_read_buffer + cough_read_tail, sizeof(u32)); + cough_read_tail += sizeof(u32); + void * dataptr = (void *) (cough_read_buffer + cough_read_tail); + *data = dataptr; + cough_read_tail += n_bytes; + *l = n_bytes; + pthread_mutex_unlock(cb_lock); + return n_bytes; + } +} + +int pneum_write(char *data, int len) { + if(orig_pneum_write) { + return(orig_pneum_write(data, len)); + } else { + printf("COUGH: pneum_write\n"); + return -1; + } +} + +void pneum_data_free(char *data) { + if (orig_pneum_connect_sync) { + if(orig_pneum_data_free) { + orig_pneum_data_free(data); + } else { + printf("COUGH: pneum_data_free\n"); + } + } else { + u32 *len; + uint32_t index = ((u8*)data) - cough_read_buffer; + pthread_mutex_lock(cb_lock); + if ((index < cough_read_head) && (index > cough_read_lock_start)) { + len = (void *)(data - sizeof(u32)); + cough_read_lock_start = index + *len; + } + pthread_mutex_unlock(cb_lock); + } +} diff --git a/vpp-api/lua/examples/cli/README.md b/vpp-api/lua/examples/cli/README.md new file mode 100644 index 00000000000..3a5f8ee9986 --- /dev/null +++ b/vpp-api/lua/examples/cli/README.md @@ -0,0 +1,5 @@ +This is a small experiment to have a wrapper CLI which can call both API functions as well as debug CLI. + +To facilitate tab completion and help, the API call names are broken up with spaces replacing the underscores. + + diff --git a/vpp-api/lua/examples/cli/lua-cli.lua b/vpp-api/lua/examples/cli/lua-cli.lua new file mode 100644 index 00000000000..1ad5045730e --- /dev/null +++ b/vpp-api/lua/examples/cli/lua-cli.lua @@ -0,0 +1,745 @@ +--[[ +/* + * 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. + */ +]] + +-- Experimental prototype CLI using API to VPP, with tab completion +-- +-- Written by Andrew Yourtchenko (ayourtch@cisco.com) 2010,2016 +-- + +vpp = require "vpp-lapi" + + +local dotdotdot = "..." + +-- First the "readline" routine + +readln = { +split = function(str, pat) + local t = {} -- NOTE: use {n = 0} in Lua-5.0 + local fpat = "(.-)" .. pat + local last_end = 1 + if str then + local s, e, cap = str:find(fpat, 1) + while s do + if s ~= 1 or cap ~= "" then + table.insert(t,cap) + end + last_end = e+1 + s, e, cap = str:find(fpat, last_end) + end + if last_end <= #str then + cap = str:sub(last_end) + table.insert(t, cap) + end + end + return t +end, + +reader = function() + local rl = {} + + rl.init = function() + os.execute("stty -icanon min 1 -echo") + rl.rawmode = true + end + + rl.done = function() + os.execute("stty icanon echo") + rl.rawmode = false + end + + rl.prompt = ">" + rl.history = { "" } + rl.history_index = 1 + rl.history_length = 1 + + rl.hide_cmd = function() + local bs = string.char(8) .. " " .. string.char(8) + for i = 1, #rl.command do + io.stdout:write(bs) + end + end + + rl.show_cmd = function() + if rl.command then + io.stdout:write(rl.command) + end + end + + rl.store_history = function(cmd) + if cmd == "" then + return + end + rl.history[rl.history_length] = cmd + rl.history_length = rl.history_length + 1 + rl.history_index = rl.history_length + rl.history[rl.history_length] = "" + end + + rl.readln = function() + local done = false + local need_prompt = true + rl.command = "" + + if not rl.rawmode then + rl.init() + end + + while not done do + if need_prompt then + io.stdout:write(rl.prompt) + io.stdout:write(rl.command) + need_prompt = false + end + + local ch = io.stdin:read(1) + if ch:byte(1) == 27 then + -- CONTROL + local ch2 = io.stdin:read(1) + -- arrows + if ch2:byte(1) == 91 then + local ch3 = io.stdin:read(1) + local b = ch3:byte(1) + if b == 65 then + ch = "UP" + elseif b == 66 then + ch = "DOWN" + elseif b == 67 then + ch = "RIGHT" + elseif b == 68 then + ch = "LEFT" + end + -- print("Byte: " .. ch3:byte(1)) + -- if ch3:byte(1) + end + end + + if ch == "?" then + io.stdout:write(ch) + io.stdout:write("\n") + if rl.help then + rl.help(rl) + end + need_prompt = true + elseif ch == "\t" then + if rl.tab_complete then + rl.tab_complete(rl) + end + io.stdout:write("\n") + need_prompt = true + elseif ch == "\n" then + io.stdout:write(ch) + done = true + elseif ch == "\004" then + io.stdout:write("\n") + rl.command = nil + done = true + elseif ch == string.char(127) then + if rl.command ~= "" then + io.stdout:write(string.char(8) .. " " .. string.char(8)) + rl.command = string.sub(rl.command, 1, -2) + end + elseif #ch > 1 then + -- control char + if ch == "UP" then + rl.hide_cmd() + if rl.history_index == #rl.history then + rl.history[rl.history_index] = rl.command + end + if rl.history_index > 1 then + rl.history_index = rl.history_index - 1 + rl.command = rl.history[rl.history_index] + end + rl.show_cmd() + elseif ch == "DOWN" then + rl.hide_cmd() + if rl.history_index < rl.history_length then + rl.history_index = rl.history_index + 1 + rl.command = rl.history[rl.history_index] + end + rl.show_cmd() + end + else + io.stdout:write(ch) + rl.command = rl.command .. ch + end + end + if rl.command then + rl.store_history(rl.command) + end + return rl.command + end + return rl +end + +} + +--[[ + +r = reader() + +local done = false + +while not done do + local cmd = r.readln() + print("Command: " .. tostring(cmd)) + if not cmd or cmd == "quit" then + done = true + end +end + +r.done() + +]] + +--------- MDS show tech parser + +local print_section = nil +local list_sections = false + +local curr_section = "---" +local curr_parser = nil + +-- by default operate in batch mode +local batch_mode = true + +local db = {} +local device = {} +device.output = {} +local seen_section = {} + +function start_collection(name) + device = {} + seen_section = {} +end + +function print_error(errmsg) + print("@#$:" .. errmsg) +end + +function keys(tbl) + local t = {} + for k, v in pairs(tbl) do + table.insert(t, k) + end + return t +end + +function tset (parent, ...) + + -- print ('set', ...) + + local len = select ('#', ...) + local key, value = select (len-1, ...) + local cutpoint, cutkey + + for i=1,len-2 do + + local key = select (i, ...) + local child = parent[key] + + if value == nil then + if child == nil then return + elseif next (child, next (child)) then cutpoint = nil cutkey = nil + elseif cutpoint == nil then cutpoint = parent cutkey = key end + + elseif child == nil then child = {} parent[key] = child end + + parent = child + end + + if value == nil and cutpoint then cutpoint[cutkey] = nil + else parent[key] = value return value end + end + + +function tget (parent, ...) + local len = select ('#', ...) + for i=1,len do + parent = parent[select (i, ...)] + if parent == nil then break end + end + return parent + end + + +local pager_lines = 23 +local pager_printed = 0 +local pager_skipping = false +local pager_filter_pipe = nil + +function pager_reset() + pager_printed = 0 + pager_skipping = false + if pager_filter_pipe then + pager_filter_pipe:close() + pager_filter_pipe = nil + end +end + + +function print_more() + io.stdout:write(" --More-- ") +end + +function print_nomore() + local bs = string.char(8) + local bs10 = bs .. bs .. bs .. bs .. bs .. bs .. bs .. bs .. bs .. bs + io.stdout:write(bs10 .. " " .. bs10) +end + +function print_line(txt) + if pager_filter_pipe then + pager_filter_pipe:write(txt .. "\n") + return + end + if pager_printed >= pager_lines then + print_more() + local ch = io.stdin:read(1) + if ch == " " then + pager_printed = 0 + elseif ch == "\n" then + pager_printed = pager_printed - 1 + elseif ch == "q" then + pager_printed = 0 + pager_skipping = true + end + print_nomore() + end + if not pager_skipping then + print(txt) + pager_printed = pager_printed + 1 + else + -- skip printing + end +end + +function paged_write(text) + local t = readln.split(text, "[\n]") + if string.sub(text, -1) == "\n" then + table.insert(t, "") + end + for i, v in ipairs(t) do + if i < #t then + print_line(v) + else + if pager_filter_pipe then + pager_filter_pipe:write(v) + else + io.stdout:write(v) + end + end + end +end + + + + + +function get_choices(tbl, key) + local res = {} + for k, v in pairs(tbl) do + if string.sub(k, 1, #key) == key then + table.insert(res, k) + elseif 0 < #key and dotdotdot == k then + table.insert(res, k) + end + end + return res +end + +function get_exact_choice(choices, val) + local exact_idx = nil + local substr_idx = nil + local substr_seen = false + + if #choices == 1 then + if choices[1] == dotdotdot then + return 1 + elseif string.sub(choices[1], 1, #val) == val then + return 1 + else + return nil + end + else + for i, v in ipairs(choices) do + if v == val then + exact_idx = i + substr_seen = true + elseif choices[i] ~= dotdotdot and string.sub(choices[i], 1, #val) == val then + if substr_seen then + substr_idx = nil + else + substr_idx = i + substr_seen = true + end + elseif choices[i] == dotdotdot then + if substr_seen then + substr_idx = nil + else + substr_idx = i + substr_seen = true + end + end + end + end + return exact_idx or substr_idx +end + +function device_cli_help(rl) + local key = readln.split(rl.command, "[ ]+") + local tree = rl.tree + local keylen = #key + local fullcmd = "" + local error = false + local terse = true + + if ((#rl.command >= 1) and (string.sub(rl.command, -1) == " ")) or (#rl.command == 0) then + table.insert(key, "") + terse = false + end + + for i, v in ipairs(key) do + local choices = get_choices(tree, v) + local idx = get_exact_choice(choices, v) + if idx then + local choice = choices[idx] + tree = tree[choice] + fullcmd = fullcmd .. choice .. " " + else + if i < #key then + error = true + end + end + + if i == #key and not error then + for j, w in ipairs(choices) do + if terse then + paged_write(w .. "\t") + else + paged_write(" " .. w .. "\n") + end + end + paged_write("\n") + if terse then + paged_write(" \n") + end + end + end + pager_reset() +end + +function device_cli_tab_complete(rl) + local key = readln.split(rl.command, "[ ]+") + local tree = rl.tree + local keylen = #key + local fullcmd = "" + local error = false + + for i, v in ipairs(key) do + local choices = get_choices(tree, v) + local idx = get_exact_choice(choices, v) + if idx and choices[idx] ~= dotdotdot then + local choice = choices[idx] + tree = tree[choice] + -- print("level " .. i .. " '" .. choice .. "'") + fullcmd = fullcmd .. choice .. " " + else + -- print("level " .. i .. " : " .. table.concat(choices, " ") .. " ") + error = true + end + end + if not error then + rl.command = fullcmd + else + -- print("\n\nerror\n") + end + pager_reset() +end + +function device_cli_exec(rl) + + local cmd_nopipe = rl.command + local cmd_pipe = nil + + local pipe1, pipe2 = string.find(rl.command, "[|]") + if pipe1 then + cmd_nopipe = string.sub(rl.command, 1, pipe1-1) + cmd_pipe = string.sub(rl.command, pipe2+1, -1) + end + + local key = readln.split(cmd_nopipe .. " <cr>", "[ ]+") + local tree = rl.tree + local keylen = #key + local fullcmd = "" + local error = false + local func = nil + + if cmd_pipe then + pager_filter_pipe = io.popen(cmd_pipe, "w") + end + + + rl.choices = {} + + for i, v in ipairs(key) do + local choices = get_choices(tree, v) + local idx = get_exact_choice(choices, v) + if idx then + local choice = choices[idx] + if i == #key then + func = tree[choice] + else + if choice == dotdotdot then + -- keep the tree the same, update the choice value to match the input string + choices[idx] = v + choice = v + else + tree = tree[choice] + end + end + -- print("level " .. i .. " '" .. choice .. "'") + table.insert(rl.choices, choice) + else + -- print("level " .. i .. " : " .. table.concat(choices, " ") .. " ") + error = true + return nil + end + end + return func +end + +function populate_tree(commands) + local tree = {} + + for k, v in pairs(commands) do + local key = readln.split(k .. " <cr>", "[ ]+") + local xtree = tree + for i, kk in ipairs(key) do + if i == 1 and kk == "sh" then + kk = "show" + end + if i == #key then + if type(v) == "function" then + xtree[kk] = v + else + xtree[kk] = function(rl) paged_write(table.concat(v, "\n") .. "\n") end + end + else + if not xtree[kk] then + xtree[kk] = {} + end + xtree = xtree[kk] + end + end + end + return tree +end + +function trim (s) + return (string.gsub(s, "^%s*(.-)%s*$", "%1")) +end + + +function init_vpp(vpp) + local root_dir = "/home/ubuntu/vpp" + local pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" + + vpp:init({ pneum_path = pneum_path }) + + vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") + vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") + + vpp:connect("lua_cli") +end + +function run_cli(vpp, cli) + local reply = vpp:api_call("cli_inband", { cmd = cli }) + if reply and #reply == 1 then + local rep = reply[1] + if 0 == rep.retval then + return rep.reply + else + return "XXXXXLUACLI: API RETVAL ERROR : " .. tostring(rep.retval) + end + else + return "XXXXXLUACLI ERROR, RAW REPLY: " .. vpp.dump(reply) + end +end + + +function toprintablestring(s) + if type(s) == "string" then + return "\n"..vpp.hex_dump(s) + else + return tostring(s) + end +end + +function interactive_cli(r) + while not done do + pager_reset() + local cmd = r.readln() + if not cmd then + done = true + elseif cmd == "quit" or cmd == "exit" then + done = true + else + local func = device_cli_exec(r) + if func then + func(r) + else + if trim(cmd) == "" then + else + for i = 1, #r.prompt do + paged_write(" ") + end + paged_write("^\n% Invalid input detected at '^' marker.\n\n") + end + end + end + end +end + +device = {} +device.output = {} + +init_vpp(vpp) +cmds_str = run_cli(vpp, "?") +vpp_cmds = readln.split(cmds_str, "\n") +vpp_clis = {} + +for linenum, line in ipairs(vpp_cmds) do + local m,h = string.match(line, "^ (.-) (.*)$") + if m and #m > 0 then + table.insert(vpp_clis, m) + device.output["vpp debug cli " .. m] = function(rl) + -- print("ARBITRARY CLI" .. vpp.dump(rl.choices)) + print("LUACLI command: " .. table.concat(rl.choices, " ")) + local sub = {} + -- + for i=4, #rl.choices -1 do + table.insert(sub, rl.choices[i]) + end + local cli = table.concat(sub, " ") + print("Running CLI: " .. tostring(cli)) + paged_write(run_cli(vpp, cli)) + end + device.output["vpp debug cli " .. m .. " " .. dotdotdot] = function(rl) + print("ARGH") + end + + local ret = run_cli(vpp, "help " .. m) + device.output["help vpp debug cli " .. m] = { ret } + end +end + +for linenum, line in ipairs(vpp_clis) do + -- print(line, ret) +end + +for msgnum, msgname in ipairs(vpp.msg_number_to_name) do + local cli, numspaces = string.gsub(msgname, "_", " ") + device.output["call " .. cli .. " " .. dotdotdot] = function(rl) + print("ARGH") + end + device.output["call " .. cli] = function(rl) + print("LUACLI command: " .. table.concat(rl.choices, " ")) + print("Running API: " .. msgname) -- vpp.dump(rl.choices)) + local out = {} + local args = {} + local ntaken = 0 + local argname = "" + for i=(1+1+numspaces+1), #rl.choices-1 do + -- print(i, rl.choices[i]) + if ntaken > 0 then + ntaken = ntaken -1 + else + local fieldname = rl.choices[i] + local field = vpp.msg_name_to_fields[msgname][fieldname] + if field then + local s = rl.choices[i+1] + s=s:gsub("\\x(%x%x)",function (x) return string.char(tonumber(x,16)) end) + args[fieldname] = s + ntaken = 1 + end + end + end + -- print("ARGS: ", vpp.dump(args)) + local ret = vpp:api_call(msgname, args) + for i, reply in ipairs(ret) do + table.insert(out, "=================== Entry #" .. tostring(i)) + for k, v in pairs(reply) do + table.insert(out, " " .. tostring(k) .. " : " .. toprintablestring(v)) + end + end + -- paged_write(vpp.dump(ret) .. "\n\n") + paged_write(table.concat(out, "\n").."\n\n") + end + device.output["call " .. cli .. " help"] = function(rl) + local out = {} + for k, v in pairs(vpp.msg_name_to_fields[msgname]) do + table.insert(out, tostring(k) .. " : " .. v["ctype"] .. " ; " .. tostring(vpp.dump(v)) ) + end + -- paged_write(vpp.dump(vpp.msg_name_to_fields[msgname]) .. "\n\n") + paged_write(table.concat(out, "\n").."\n\n") + end +-- vpp.msg_name_to_number = {} +end + + + +local r = readln.reader() +local done = false + +r.prompt = "VPP(luaCLI)#" + +r.help = device_cli_help +r.tab_complete = device_cli_tab_complete +print("===== CLI view, use ^D to end =====") + +r.tree = populate_tree(device.output) +-- readln.pretty("xxxx", r.tree) + + +for idx, an_arg in ipairs(arg) do + local fname = an_arg + if fname == "-i" then + pager_lines = 23 + interactive_cli(r) + else + pager_lines = 100000000 + for line in io.lines(fname) do + r.command = line + local func = device_cli_exec(r) + if func then + func(r) + end + end + end +end + +if #arg == 0 then + print("You should specify '-i' as an argument for the interactive session,") + print("but with no other sources of commands, we start interactive session now anyway") + interactive_cli(r) +end + +vpp:disconnect() +r.done() + + diff --git a/vpp-api/lua/examples/example-acl-plugin.lua b/vpp-api/lua/examples/example-acl-plugin.lua new file mode 100644 index 00000000000..ca01f18d71d --- /dev/null +++ b/vpp-api/lua/examples/example-acl-plugin.lua @@ -0,0 +1,110 @@ +--[[ +/* + * 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. + */ +]] + + +vpp = require "vpp-lapi" + +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" + +vpp:init({ pneum_path = pneum_path }) + +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") +vpp:connect("aytest") +vpp:consume_api(root_dir .. "/plugins/acl-plugin/acl/acl.api", "acl") + +-- api calls +reply = vpp:api_call("show_version") +print("Version: ", reply[1].version) +print(vpp.hex_dump(reply[1].version)) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 230 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 8 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 15 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add", { context = 42, count = 2, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add", { context = 42, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add", { context = 42, count = 0 }) +print(vpp.dump(reply)) +print("---") + +acl_index_to_delete = reply[1].acl_index +print("Deleting " .. tostring(acl_index_to_delete)) +reply = vpp:api_call("acl_del", { context = 42, acl_index = acl_index_to_delete }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +for ri, rv in ipairs(reply) do + print("Reply message #" .. tostring(ri)) + print(vpp.dump(rv)) + for ai, av in ipairs(rv.r) do + print("ACL rule #" .. tostring(ai) .. " : " .. vpp.dump(av)) + end + +end +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +print(vpp.dump(reply)) +print("---") + + +vpp:disconnect() + + diff --git a/vpp-api/lua/examples/example-classifier.lua b/vpp-api/lua/examples/example-classifier.lua new file mode 100644 index 00000000000..a3fa45f2719 --- /dev/null +++ b/vpp-api/lua/examples/example-classifier.lua @@ -0,0 +1,51 @@ +--[[ +/* + * 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. + */ +]] + + +local vpp = require "vpp-lapi" +local bit = require("bit") + +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" + +vpp:init({ pneum_path = pneum_path }) + +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") + +vpp:connect("aytest") + +-- api calls + +print("Calling API to add a new classifier table") +reply = vpp:api_call("classify_add_del_table", { + context = 43, + memory_size = bit.lshift(2, 20), + client_index = 42, + is_add = 1, + nbuckets = 32, + skip_n_vectors = 0, + match_n_vectors = 1, + mask = "\255\255\255\255\255\255\255\255" .. "\255\255\255\255\255\255\255\255" +}) +print(vpp.dump(reply)) +print("---") + + +vpp:disconnect() + + diff --git a/vpp-api/lua/examples/example-cli.lua b/vpp-api/lua/examples/example-cli.lua new file mode 100644 index 00000000000..656feae5cbc --- /dev/null +++ b/vpp-api/lua/examples/example-cli.lua @@ -0,0 +1,45 @@ +--[[ +/* + * 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. + */ +]] + +vpp = require "vpp-lapi" + +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" + +vpp:init({ pneum_path = pneum_path }) + +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") + +vpp:connect("aytest") + +-- api calls +reply = vpp:api_call("show_version") +print("Version: ", reply[1].version) +print(vpp.hex_dump(reply[1].version)) +print(vpp.dump(reply)) +print("---") + + +reply = vpp:api_call("cli_inband", { cmd = "show vers" }) +print(vpp.dump(reply)) +print("---") + + +vpp:disconnect() + + diff --git a/vpp-api/lua/examples/lute/README.md b/vpp-api/lua/examples/lute/README.md new file mode 100644 index 00000000000..8d37250ad83 --- /dev/null +++ b/vpp-api/lua/examples/lute/README.md @@ -0,0 +1,66 @@ +LUTE: Lua Unit Test Environment + +This is a small helper utility to automate some simple tests +that one might need to do. + +Think of it as a hybrid of a screen and expect who +also took some habits from HTML inline code. + +It is quite probably useless for building anything serious, +but practice shows it is quite efficient at allowing +convenient temporary quick tests, and for something +that was written over a course of a couple of evenings it +is quite a nice little helper tool. + +It allows do launch and drive multiple shell sessions, +and by virtue of having been written in Lua, it of course +also allows to add the business logic using the Lua code. + +If you launch the lute without parameters, it gives you +the interactive shell to execute the commands in. + +If you launch it with an argument, it will attempt to +read and execute the commands from the file. + +Commands: + +shell FOO + + spawn a shell in a new PTY under the label FOO. + +run FOO bar + + Send "bar" keystrokes followed by "ENTER" to the session FOO + + Special case: "break" word on its own gets translated into ^C being sent. + +cd FOO + + "change domain" into session FOO. All subsequent inputs will go, + line-buffered, into the session FOO. To jump back up, use ^D (Control-D), + or within the file, use ^D^D^D (caret D caret D caret D on its own line) + +expect FOO blablabla + + Pause further interpretation of the batch mode until you see "blablabla" + in the output of session FOO, or until timeout happens. + +sleep N + + Sleep an integer N seconds, if you are in batch mode. + +echo blabla + + Echo the remainder of the line to standard output. + +For Lua code, there is a pre-existing pseudo-session called "lua", +which accepts "run lua" command which does what you would expect +(evaluate the rest of the string in Lua context - being the same +as lute itself). Also you can do "cd lua" and get into a +multiline-enabled interpreter shell. + +This way for the VPP case you can automate some of the things in your routine +that you would have to have done manually, and test drive API as well +as use the realistic native OS components to create the environment around it. + + diff --git a/vpp-api/lua/examples/lute/lute.lua b/vpp-api/lua/examples/lute/lute.lua new file mode 100644 index 00000000000..89b9924b901 --- /dev/null +++ b/vpp-api/lua/examples/lute/lute.lua @@ -0,0 +1,777 @@ +--[[ +version = 1 +/* + * 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. + */ +]] + +-- LUTE: Lua Unit Test Environment +-- AKA what happens when screen tries to marry with lua and expect, +-- but escapes mid-ceremony. +-- +-- comments: @ayourtch + +ffi = require("ffi") + +vpp = {} +function vpp.dump(o) + if type(o) == 'table' then + local s = '{ ' + for k,v in pairs(o) do + if type(k) ~= 'number' then k = '"'..k..'"' end + s = s .. '['..k..'] = ' .. vpp.dump(v) .. ',' + end + return s .. '} ' + else + return tostring(o) + end +end + + +ffi.cdef([[ + +int posix_openpt(int flags); +int grantpt(int fd); +int unlockpt(int fd); +char *ptsname(int fd); + +typedef long pid_t; +typedef long ssize_t; +typedef long size_t; +typedef int nfds_t; +typedef long time_t; +typedef long suseconds_t; + +pid_t fork(void); +pid_t setsid(void); + +int close(int fd); +int open(char *pathname, int flags); + +int dup2(int oldfd, int newfd); + +ssize_t read(int fd, void *buf, size_t count); +ssize_t write(int fd, const void *buf, size_t count); + +struct pollfd { + int fd; /* file descriptor */ + short events; /* requested events */ + short revents; /* returned events */ + }; + +int poll(struct pollfd *fds, nfds_t nfds, int timeout); + +struct timeval { + time_t tv_sec; /* seconds */ + suseconds_t tv_usec; /* microseconds */ + }; + +int gettimeofday(struct timeval *tv, struct timezone *tz); + +int inet_pton(int af, const char *src, void *dst); + +]]) + +ffi.cdef([[ +void *memset(void *s, int c, size_t n); +void *memcpy(void *dest, void *src, size_t n); +void *memmove(void *dest, const void *src, size_t n); +void *memmem(const void *haystack, size_t haystacklen, + const void *needle, size_t needlelen); +]]) + + + +local O_RDWR = 2 + + +function os_time() + local tv = ffi.new("struct timeval[1]") + local ret = ffi.C.gettimeofday(tv, nil) + return tonumber(tv[0].tv_sec) + (tonumber(tv[0].tv_usec)/1000000.0) +end + +function sleep(n) + local when_wakeup = os_time() + n + while os_time() <= when_wakeup do + ffi.C.poll(nil, 0, 10) + end +end + + +function c_str(text_in) + local text = text_in + local c_str = ffi.new("char[?]", #text+1) + ffi.copy(c_str, text) + return c_str +end + +function ip46(addr_text) + local out = ffi.new("char [200]") + local AF_INET6 = 10 + local AF_INET = 2 + local is_ip6 = ffi.C.inet_pton(AF_INET6, c_str(addr_text), out) + if is_ip6 == 1 then + return ffi.string(out, 16), true + end + local is_ip4 = ffi.C.inet_pton(AF_INET, c_str(addr_text), out) + if is_ip4 then + return (string.rep("4", 12).. ffi.string(out, 4)), false + end +end + +function pty_master_open() + local fd = ffi.C.posix_openpt(O_RDWR) + ffi.C.grantpt(fd) + ffi.C.unlockpt(fd) + local p = ffi.C.ptsname(fd) + print("PTS:" .. ffi.string(p)) + return fd, ffi.string(p) +end + +function pty_run(cmd) + local master_fd, pts_name = pty_master_open() + local child_pid = ffi.C.fork() + if (child_pid == -1) then + print("Error fork()ing") + return -1 + end + + if child_pid ~= 0 then + -- print("Parent") + return master_fd, child_pid + end + + -- print("Child") + if (ffi.C.setsid() == -1) then + print("Child error setsid") + os.exit(-1) + end + + ffi.C.close(master_fd) + + local slave_fd = ffi.C.open(c_str(pts_name), O_RDWR) + if slave_fd == -1 then + print("Child can not open slave fd") + os.exit(-2) + end + + ffi.C.dup2(slave_fd, 0) + ffi.C.dup2(slave_fd, 1) + ffi.C.dup2(slave_fd, 2) + os.execute(cmd) +end + +function readch() + local buf = ffi.new("char[1]") + local nread= ffi.C.read(0, buf, 1) + -- print("\nREADCH : " .. string.char(buf[0])) + return string.char(buf[0]) +end + +function stdout_write(str) + ffi.C.write(1, c_str(str), #str) +end + + +readln = { +split = function(str, pat) + local t = {} -- NOTE: use {n = 0} in Lua-5.0 + local fpat = "(.-)" .. pat + local last_end = 1 + if str then + local s, e, cap = str:find(fpat, 1) + while s do + if s ~= 1 or cap ~= "" then + table.insert(t,cap) + end + last_end = e+1 + s, e, cap = str:find(fpat, last_end) + end + if last_end <= #str then + cap = str:sub(last_end) + table.insert(t, cap) + end + end + return t +end, + +reader = function() + local rl = {} + + rl.init = function() + os.execute("stty -icanon min 1 -echo") + rl.rawmode = true + end + + rl.done = function() + os.execute("stty icanon echo") + rl.rawmode = false + end + + rl.prompt = ">" + rl.history = { "" } + rl.history_index = 1 + rl.history_length = 1 + + rl.hide_cmd = function() + local bs = string.char(8) .. " " .. string.char(8) + for i = 1, #rl.command do + stdout_write(bs) + end + end + + rl.show_cmd = function() + if rl.command then + stdout_write(rl.command) + end + end + + rl.store_history = function(cmd) + if cmd == "" then + return + end + rl.history[rl.history_length] = cmd + rl.history_length = rl.history_length + 1 + rl.history_index = rl.history_length + rl.history[rl.history_length] = "" + end + + rl.readln = function(stdin_select_fn, batch_cmd, batch_when, batch_expect) + local done = false + local need_prompt = true + rl.command = "" + + if not rl.rawmode then + rl.init() + end + + while not done do + local indent_value = #rl.prompt + #rl.command + if need_prompt then + stdout_write(rl.prompt) + stdout_write(rl.command) + need_prompt = false + end + if type(stdin_select_fn) == "function" then + while not stdin_select_fn(indent_value, batch_cmd, batch_when, batch_expect) do + stdout_write(rl.prompt) + stdout_write(rl.command) + indent_value = #rl.prompt + #rl.command + end + if batch_cmd and ((os_time() > batch_when) or (batch_expect and expect_success(batch_expect, buf, 0))) then + stdout_write("\n" .. rl.prompt .. batch_cmd .. "\n") + if batch_expect then + expect_done(batch_expect) + end + return batch_cmd, batch_expect + end + end + local ch = readch() + if ch:byte(1) == 27 then + -- CONTROL + local ch2 = readch() + -- arrows + if ch2:byte(1) == 91 then + local ch3 = readch() + local b = ch3:byte(1) + if b == 65 then + ch = "UP" + elseif b == 66 then + ch = "DOWN" + elseif b == 67 then + ch = "RIGHT" + elseif b == 68 then + ch = "LEFT" + end + -- print("Byte: " .. ch3:byte(1)) + -- if ch3:byte(1) + end + end + + if ch == "?" then + stdout_write(ch) + stdout_write("\n") + if rl.help then + rl.help(rl) + end + need_prompt = true + elseif ch == "\t" then + if rl.tab_complete then + rl.tab_complete(rl) + end + stdout_write("\n") + need_prompt = true + elseif ch == "\n" then + stdout_write(ch) + done = true + elseif ch == "\004" then + stdout_write("\n") + rl.command = nil + done = true + elseif ch == string.char(127) then + if rl.command ~= "" then + stdout_write(string.char(8) .. " " .. string.char(8)) + rl.command = string.sub(rl.command, 1, -2) + end + elseif #ch > 1 then + -- control char + if ch == "UP" then + rl.hide_cmd() + if rl.history_index == #rl.history then + rl.history[rl.history_index] = rl.command + end + if rl.history_index > 1 then + rl.history_index = rl.history_index - 1 + rl.command = rl.history[rl.history_index] + end + rl.show_cmd() + elseif ch == "DOWN" then + rl.hide_cmd() + if rl.history_index < rl.history_length then + rl.history_index = rl.history_index + 1 + rl.command = rl.history[rl.history_index] + end + rl.show_cmd() + end + else + stdout_write(ch) + rl.command = rl.command .. ch + end + end + if rl.command then + rl.store_history(rl.command) + end + return rl.command + end + return rl +end + +} + +local select_fds = {} +local sessions = {} + +local line_erased = false + +function erase_line(indent) + if not line_erased then + line_erased = true + stdout_write(string.rep(string.char(8), indent)..string.rep(" ", indent)..string.rep(string.char(8), indent)) + end +end + +function do_select_stdin(indent, batch_cmd, batch_when, batch_expect) + while true do + local nfds = 1+#select_fds + local pfds = ffi.new("struct pollfd[?]", nfds) + pfds[0].fd = 0; + pfds[0].events = 1; + pfds[0].revents = 0; + for i = 1,#select_fds do + pfds[i].fd = select_fds[i].fd + pfds[i].events = 1 + pfds[i].revents = 0 + end + if batch_cmd and ((os_time() > batch_when) or (batch_expect and expect_success(batch_expect, buf, 0))) then + return true + end + while ffi.C.poll(pfds, nfds, 10) == 0 do + if batch_cmd and ((os_time() > batch_when) or (batch_expect and expect_success(batch_expect, buf, 0))) then + return true + end + if line_erased then + line_erased = false + return false + end + end + if pfds[0].revents == 1 then + return true + end + for i = 1,#select_fds do + if(pfds[i].revents > 0) then + if pfds[i].fd ~= select_fds[i].fd then + print("File descriptors unequal", pfds[i].fd, select_fds[i].fd) + end + select_fds[i].cb(select_fds[i], pfds[i].revents, indent) + end + end + end +end + +local buf = ffi.new("char [32768]") + +function session_stdout_write(prefix, data) + data = prefix .. data:gsub("\n", "\n"..prefix):gsub("\n"..prefix.."$", "\n") + + stdout_write(data) +end + +function expect_success(sok, buf, nread) + local expect_buf_sz = ffi.sizeof(sok.expect_buf) - 128 + local expect_buf_avail = expect_buf_sz - sok.expect_buf_idx + -- print("EXPECT_SUCCESS: nread ".. tostring(nread).. " expect_buf_idx: " .. tostring(sok.expect_buf_idx) .. " expect_buf_avail: " .. tostring(expect_buf_avail) ) + if expect_buf_avail < 0 then + print "EXPECT BUFFER OVERRUN ALREADY" + os.exit(1) + end + if expect_buf_avail < nread then + if (nread >= ffi.sizeof(sok.expect_buf)) then + print("Read too large of a chunk to fit into expect buffer") + return nil + end + local delta = nread - expect_buf_avail + + ffi.C.memmove(sok.expect_buf, sok.expect_buf + delta, expect_buf_sz - delta) + sok.expect_buf_idx = sok.expect_buf_idx - delta + expect_buf_avail = nread + end + if sok.expect_buf_idx + nread > expect_buf_sz then + print("ERROR, I have just overrun the buffer !") + os.exit(1) + end + ffi.C.memcpy(sok.expect_buf + sok.expect_buf_idx, buf, nread) + sok.expect_buf_idx = sok.expect_buf_idx + nread + if sok.expect_str == nil then + return true + end + local match_p = ffi.C.memmem(sok.expect_buf, sok.expect_buf_idx, sok.expect_str, sok.expect_str_len) + if match_p ~= nil then + return true + end + return false +end + +function expect_done(sok) + local expect_buf_sz = ffi.sizeof(sok.expect_buf) - 128 + if not sok.expect_str then + return false + end + local match_p = ffi.C.memmem(sok.expect_buf, sok.expect_buf_idx, sok.expect_str, sok.expect_str_len) + if match_p ~= nil then + if sok.expect_cb then + sok.expect_cb(sok) + end + local match_idx = ffi.cast("char *", match_p) - ffi.cast("char *", sok.expect_buf) + ffi.C.memmove(sok.expect_buf, ffi.cast("char *", match_p) + sok.expect_str_len, expect_buf_sz - match_idx - sok.expect_str_len) + sok.expect_buf_idx = match_idx + sok.expect_str_len + sok.expect_success = true + + sok.expect_str = nil + sok.expect_str_len = 0 + return true + end +end + +function slave_events(sok, revents, indent) + local fd = sok.fd + local nread = ffi.C.read(fd, buf, ffi.sizeof(buf)-128) + local idx = nread - 1 + while idx >= 0 and buf[idx] ~= 10 do + idx = idx - 1 + end + if idx >= 0 then + erase_line(indent) + session_stdout_write(sok.prefix, sok.buf .. ffi.string(buf, idx+1)) + sok.buf = "" + end + sok.buf = sok.buf .. ffi.string(buf+idx+1, nread-idx-1) + -- print("\nRead: " .. tostring(nread)) + -- stdout_write(ffi.string(buf, nread)) + if expect_success(sok, buf, nread) then + return true + end + return false +end + + +function start_session(name) + local mfd, cpid = pty_run("/bin/bash") + local sok = { ["fd"] = mfd, ["cb"] = slave_events, ["buf"] = "", ["prefix"] = name .. ":", ["expect_buf"] = ffi.new("char [165536]"), ["expect_buf_idx"] = 0, ["expect_str"] = nil } + table.insert(select_fds, sok) + sessions[name] = sok +end + +function command_transform(exe) + if exe == "break" then + exe = string.char(3) + end + return exe +end + +function session_write(a_session, a_str) + if has_session(a_session) then + return tonumber(ffi.C.write(sessions[a_session].fd, c_str(a_str), #a_str)) + else + return 0 + end +end + +function session_exec(a_session, a_cmd) + local exe = command_transform(a_cmd) .. "\n" + session_write(a_session, exe) +end + +function session_cmd(ui, a_session, a_cmd) + if not has_session(a_session) then + stdout_write("ERR: No such session '" .. tostring(a_session) .. "'\n") + return nil + end + if a_session == "lua" then + local func, msg = loadstring(ui.lua_acc .. a_cmd) + -- stdout_write("LOADSTR: " .. vpp.dump({ ret, msg }) .. "\n") + if not func and string.match(msg, "<eof>") then + if a_session ~= ui.in_session then + stdout_write("ERR LOADSTR: " .. tostring(msg) .. "\n") + return nil + end + ui.lua_acc = ui.lua_acc .. a_cmd .. "\n" + return true + end + ui.lua_acc = "" + local ret, msg = pcall(func) + if ret then + return true + else + stdout_write("ERR: " .. msg .. "\n") + return nil + end + else + session_exec(a_session, a_cmd) + if ui.session_cmd_delay then + return { "delay", ui.session_cmd_delay } + end + return true + end +end + +function has_session(a_session) + if a_session == "lua" then + return true + end + return (sessions[a_session] ~= nil) +end + +function command_match(list, input, output) + for i, v in ipairs(list) do + local m = {} + m[1], m[2], m[3], m[4], m[5], m[6], m[7], m[8], m[9] = string.match(input, v[1]) + -- print("MATCH: ", vpp.dump(m)) + if m[1] then + output["result"] = m + output["result_index"] = i + return m + end + end + return nil +end + +function cmd_spawn_shell(ui, a_arg) + start_session(a_arg[1]) + return true +end + +function cmd_run_cmd(ui, a_arg) + local a_sess = a_arg[1] + local a_cmd = a_arg[2] + return session_cmd(ui, a_sess, a_cmd) +end + +function cmd_cd(ui, a_arg) + local a_sess = a_arg[1] + if has_session(a_sess) then + ui.in_session = a_sess + return true + else + stdout_write("ERR: Unknown session '".. tostring(a_sess) .. "'\n") + return nil + end +end + +function cmd_sleep(ui, a_arg) + return { "delay", tonumber(a_arg[1]) } +end + +function cmd_expect(ui, a_arg) + local a_sess = a_arg[1] + local a_expect = a_arg[2] + local sok = sessions[a_sess] + if not sok then + stdout_write("ERR: unknown session '" .. tostring(a_sess) .. "'\n") + return nil + end + sok.expect_str = c_str(a_expect) + sok.expect_str_len = #a_expect + return { "expect", a_sess } +end + +function cmd_info(ui, a_arg) + local a_sess = a_arg[1] + local sok = sessions[a_sess] + if not sok then + stdout_write("ERR: unknown session '" .. tostring(a_sess) .. "'\n") + return nil + end + print("Info for session " .. tostring(a_sess) .. "\n") + print("Expect buffer index: " .. tostring(sok.expect_buf_idx)) + print("Expect buffer: '" .. tostring(ffi.string(sok.expect_buf, sok.expect_buf_idx)) .. "'\n") + if sok.expect_str then + print("Expect string: '" .. tostring(ffi.string(sok.expect_str, sok.expect_str_len)) .. "'\n") + else + print("Expect string not set\n") + end +end + +function cmd_echo(ui, a_arg) + local a_data = a_arg[1] + print("ECHO: " .. tostring(a_data)) +end + +main_command_table = { + { "^shell ([a-zA-Z0-9_]+)$", cmd_spawn_shell }, + { "^run ([a-zA-Z0-9_]+) (.+)$", cmd_run_cmd }, + { "^cd ([a-zA-Z0-9_]+)$", cmd_cd }, + { "^sleep ([0-9]+)$", cmd_sleep }, + { "^expect ([a-zA-Z0-9_]+) (.-)$", cmd_expect }, + { "^info ([a-zA-Z0-9_]+)$", cmd_info }, + { "^echo (.-)$", cmd_echo } +} + + + +function ui_set_prompt(ui) + if ui.in_session then + if ui.in_session == "lua" then + if #ui.lua_acc > 0 then + ui.r.prompt = ui.in_session .. ">>" + else + ui.r.prompt = ui.in_session .. ">" + end + else + ui.r.prompt = ui.in_session .. "> " + end + else + ui.r.prompt = "> " + end + return ui.r.prompt +end + +function ui_run_command(ui, cmd) + -- stdout_write("Command: " .. tostring(cmd) .. "\n") + local ret = false + if ui.in_session then + if cmd then + if cmd == "^D^D^D" then + ui.in_session = nil + ret = true + else + ret = session_cmd(ui, ui.in_session, cmd) + end + else + ui.in_session = nil + ret = true + end + else + if cmd then + local out = {} + if cmd == "" then + ret = true + end + if command_match(main_command_table, cmd, out) then + local i = out.result_index + local m = out.result + if main_command_table[i][2] then + ret = main_command_table[i][2](ui, m) + end + end + end + if not cmd or cmd == "quit" then + return "quit" + end + end + return ret +end + +local ui = {} +ui.in_session = nil +ui.r = readln.reader() +ui.lua_acc = "" +ui.session_cmd_delay = 0.3 + +local lines = "" + +local done = false +-- a helper function which always returns nil +local no_next_line = function() return nil end + +-- a function which returns the next batch line +local next_line = no_next_line + +local batchfile = arg[1] + +if batchfile then + local f = io.lines(batchfile) + next_line = function() + local line = f() + if line then + return line + else + next_line = no_next_line + session_stdout_write(batchfile .. ":", "End of batch\n") + return nil + end + end +end + + +local batch_when = 0 +local batch_expect = nil +while not done do + local prompt = ui_set_prompt(ui) + local batch_cmd = next_line() + local cmd, expect_sok = ui.r.readln(do_select_stdin, batch_cmd, batch_when, batch_expect) + if expect_sok and not expect_success(expect_sok, buf, 0) then + if not cmd_ret and next_line ~= no_next_line then + print("ERR: expect timeout\n") + next_line = no_next_line + end + else + local cmd_ret = ui_run_command(ui, cmd) + if not cmd_ret and next_line ~= no_next_line then + print("ERR: Error during batch execution\n") + next_line = no_next_line + end + + if cmd_ret == "quit" then + done = true + end + batch_expect = nil + batch_when = 0 + if type(cmd_ret) == "table" then + if cmd_ret[1] == "delay" then + batch_when = os_time() + tonumber(cmd_ret[2]) + end + if cmd_ret[1] == "expect" then + batch_expect = sessions[cmd_ret[2]] + batch_when = os_time() + 15 + end + end + end +end +ui.r.done() + +os.exit(1) + + + diff --git a/vpp-api/lua/examples/lute/script-inout-acl-noacl.lute b/vpp-api/lua/examples/lute/script-inout-acl-noacl.lute new file mode 100644 index 00000000000..a24d04bfb36 --- /dev/null +++ b/vpp-api/lua/examples/lute/script-inout-acl-noacl.lute @@ -0,0 +1,329 @@ +shell vppbuild +run vppbuild stty -echo +run vppbuild sudo -u ubuntu -i bash -c "(cd vpp && make plugins && echo ALLGOOD)" +expect vppbuild ALLGOOD + +shell s0 +shell s1 +shell s2 + + +cd s1 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + +cd s2 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + + +cd lua + +function session_get_bash_pid(s) + if not has_session(s) then + return nil + end + local fname = "/tmp/lute-"..s.."-pid.txt" + + session_exec(s, "echo $$ >" .. fname) + -- it's a dirty hack but it's quick + sleep(0.5) + local pid = io.lines(fname)() + print("Got pid for " .. s .. " : " .. tostring(pid)) + return(tonumber(pid)) +end + +function session_connect_with(s0, s1) + -- local pid0 = tostring(session_get_bash_pid(s0)) + local pid1 = tostring(session_get_bash_pid(s1)) + local eth_options = { "rx", "tx", "sg", "tso", "ufo", "gso", "gro", "lro", "rxvlan", "txvlan", "rxhash" } + local this_end = s0 .. "_" .. s1 + local other_end = s1 .. "_" .. s0 + session_exec(s0, "ip link add name " .. this_end .. " type veth peer name " .. other_end) + session_exec(s0, "ip link set dev " .. this_end .. " up promisc on") + for i, option in ipairs(eth_options) do + session_exec(s0, "/sbin/ethtool --offload " .. this_end .. " " .. option .. " off") + session_exec(s0, "/sbin/ethtool --offload " .. other_end .. " " .. option .. " off") + end + session_exec(s0, "ip link set dev " .. other_end .. " up promisc on netns /proc/" .. pid1 .. "/ns/net") + sleep(0.5) +end + +^D^D^D +run lua session_connect_with("s0", "s1") +run lua session_connect_with("s0", "s2") + +cd s1 +ip -6 addr add dev s1_s0 2001:db8:1::1/64 +ip -4 addr add dev s1_s0 192.0.2.1/24 +ip link set dev s1_s0 up promisc on +^D^D^D + +cd s2 +ip -6 addr add dev s2_s0 2001:db8:1::2/64 +ip -6 addr add dev s2_s0 2001:db8:1::3/64 +ip -6 addr add dev s2_s0 2001:db8:1::4/64 +ip -4 addr add dev s2_s0 192.0.2.2/24 +ip -4 addr add dev s2_s0:1 192.0.2.3/24 +ip -4 addr add dev s2_s0:2 192.0.2.4/24 +ip link set dev s2_s0 up promisc on +^D^D^D + +run s1 ip addr +run s2 ip addr +shell VPP +cd VPP +cd /home/ubuntu/vpp +make debug +r +^D^D^D +expect VPP DBGvpp# + +cd lua +-- Initialization of the Lua environment for talking to VPP +vpp = require("vpp-lapi") +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" +vpp:init({ pneum_path = pneum_path }) +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") +vpp:connect("aytest") +vpp:consume_api(root_dir .. "/plugins/acl-plugin/acl/acl.api", "acl") + +^D^D^D + +cd lua + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s1", hw_addr = "AAAAAA" }) +vpp_if_to_s1 = reply[1].sw_if_index + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s2", hw_addr = "AAAAAA" }) +vpp_if_to_s2 = reply[1].sw_if_index + +ifaces = { vpp_if_to_s1, vpp_if_to_s2 } + +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s1, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s2, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) + +bd_id = 42 + +reply = vpp:api_call("bridge_domain_add_del", { bd_id = bd_id, flood = 1, uu_flood = 1, forward = 1, learn = 1, arp_term = 0, is_add = 1 }) +print(vpp.dump(reply)) + +for i, v in ipairs(ifaces) do + reply = vpp:api_call("sw_interface_set_l2_bridge", { rx_sw_if_index = v, bd_id = bd_id, shg = 0, bvi = 0, enable = 1 } ) + print(vpp.dump(reply)) +end + +^D^D^D + +run s1 ping -c 3 192.0.2.2 +expect s1 packet loss +run s1 ping -c 3 192.0.2.3 +expect s1 packet loss +run s1 ping -c 3 192.0.2.4 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss + + +cd lua +--- ACL testing + +--[[ temporary comment out + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 230 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 8 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 15 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add_replace", { context = 42, count = 2, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add_replace", { context = 42, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add_replace", { context = 42, count = 0 }) +print(vpp.dump(reply)) +print("---") + +acl_index_to_delete = reply[1].acl_index +print("Deleting " .. tostring(acl_index_to_delete)) +reply = vpp:api_call("acl_del", { context = 42, acl_index = acl_index_to_delete }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +for ri, rv in ipairs(reply) do + print("Reply message #" .. tostring(ri)) + print(vpp.dump(rv)) + for ai, av in ipairs(rv.r) do + print("ACL rule #" .. tostring(ai) .. " : " .. vpp.dump(av)) + end + +end +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 4294967295 }) +print(vpp.dump(reply)) +print("---") + + +]] -- end of comment out + +---- Should be nothing ^^ +r = { + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::3"), dst_ip_prefix_len = 128 }, + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8::"), dst_ip_prefix_len = 32 }, + { is_permit = 1, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.2"), dst_ip_prefix_len = 32}, + { is_permit = 0, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.3"), dst_ip_prefix_len = 32 }, +} + +reply = vpp:api_call("acl_add_replace", { context = 42, count = 5, r = r }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add_replace", { context = 42, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_in + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s1, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +--reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +-- print(vpp.dump(reply)) +--print("---") + +^D^D^D + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 0 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 1 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 2 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping -c 3 192.0.2.2 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 3 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping -c 3 192.0.2.3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 4 + + +cd lua + +--- TEST OUTBOUND ACL + +r1 = { + { is_permit = 1, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::4"), dst_ip_prefix_len = 128 } +} + +reply = vpp:api_call("acl_add_replace", { context = 42, count = 3, r = r1 }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + + +^D^D^D + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run VPP show trace +expect VPP match: outacl 2 rule 0 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 1 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss +run VPP show trace +expect VPP match: outacl 2 rule 1 + +run lua print("ALL GOOD!") + diff --git a/vpp-api/lua/examples/lute/script-inout-acl-old.lute b/vpp-api/lua/examples/lute/script-inout-acl-old.lute new file mode 100644 index 00000000000..9edebf02f97 --- /dev/null +++ b/vpp-api/lua/examples/lute/script-inout-acl-old.lute @@ -0,0 +1,329 @@ +shell vppbuild +run vppbuild stty -echo +run vppbuild sudo -u ubuntu -i bash -c "(cd vpp && make plugins && echo ALLGOOD)" +expect vppbuild ALLGOOD + +shell s0 +shell s1 +shell s2 + + +cd s1 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + +cd s2 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + + +cd lua + +function session_get_bash_pid(s) + if not has_session(s) then + return nil + end + local fname = "/tmp/lute-"..s.."-pid.txt" + + session_exec(s, "echo $$ >" .. fname) + -- it's a dirty hack but it's quick + sleep(0.5) + local pid = io.lines(fname)() + print("Got pid for " .. s .. " : " .. tostring(pid)) + return(tonumber(pid)) +end + +function session_connect_with(s0, s1) + -- local pid0 = tostring(session_get_bash_pid(s0)) + local pid1 = tostring(session_get_bash_pid(s1)) + local eth_options = { "rx", "tx", "sg", "tso", "ufo", "gso", "gro", "lro", "rxvlan", "txvlan", "rxhash" } + local this_end = s0 .. "_" .. s1 + local other_end = s1 .. "_" .. s0 + session_exec(s0, "ip link add name " .. this_end .. " type veth peer name " .. other_end) + session_exec(s0, "ip link set dev " .. this_end .. " up promisc on") + for i, option in ipairs(eth_options) do + session_exec(s0, "/sbin/ethtool --offload " .. this_end .. " " .. option .. " off") + session_exec(s0, "/sbin/ethtool --offload " .. other_end .. " " .. option .. " off") + end + session_exec(s0, "ip link set dev " .. other_end .. " up promisc on netns /proc/" .. pid1 .. "/ns/net") + sleep(0.5) +end + +^D^D^D +run lua session_connect_with("s0", "s1") +run lua session_connect_with("s0", "s2") + +cd s1 +ip -6 addr add dev s1_s0 2001:db8:1::1/64 +ip -4 addr add dev s1_s0 192.0.2.1/24 +ip link set dev s1_s0 up promisc on +^D^D^D + +cd s2 +ip -6 addr add dev s2_s0 2001:db8:1::2/64 +ip -6 addr add dev s2_s0 2001:db8:1::3/64 +ip -6 addr add dev s2_s0 2001:db8:1::4/64 +ip -4 addr add dev s2_s0 192.0.2.2/24 +ip -4 addr add dev s2_s0:1 192.0.2.3/24 +ip -4 addr add dev s2_s0:2 192.0.2.4/24 +ip link set dev s2_s0 up promisc on +^D^D^D + +run s1 ip addr +run s2 ip addr +shell VPP +cd VPP +cd /home/ubuntu/vpp +make debug +r +^D^D^D +expect VPP DBGvpp# + +cd lua +-- Initialization of the Lua environment for talking to VPP +vpp = require("vpp-lapi") +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" +vpp:init({ pneum_path = pneum_path }) +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") +vpp:connect("aytest") +vpp:consume_api(root_dir .. "/plugins/acl-plugin/acl/acl.api", "acl") + +^D^D^D + +cd lua + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s1", hw_addr = "AAAAAA" }) +vpp_if_to_s1 = reply[1].sw_if_index + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s2", hw_addr = "AAAAAA" }) +vpp_if_to_s2 = reply[1].sw_if_index + +ifaces = { vpp_if_to_s1, vpp_if_to_s2 } + +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s1, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s2, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) + +bd_id = 42 + +reply = vpp:api_call("bridge_domain_add_del", { bd_id = bd_id, flood = 1, uu_flood = 1, forward = 1, learn = 1, arp_term = 0, is_add = 1 }) +print(vpp.dump(reply)) + +for i, v in ipairs(ifaces) do + reply = vpp:api_call("sw_interface_set_l2_bridge", { rx_sw_if_index = v, bd_id = bd_id, shg = 0, bvi = 0, enable = 1 } ) + print(vpp.dump(reply)) +end + +^D^D^D + +run s1 ping -c 3 192.0.2.2 +expect s1 packet loss +run s1 ping -c 3 192.0.2.3 +expect s1 packet loss +run s1 ping -c 3 192.0.2.4 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss + + +cd lua +--- ACL testing + +--[[ temporary comment out + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 230 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 8 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 15 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add", { context = 42, count = 2, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add", { context = 42, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add", { context = 42, count = 0 }) +print(vpp.dump(reply)) +print("---") + +acl_index_to_delete = reply[1].acl_index +print("Deleting " .. tostring(acl_index_to_delete)) +reply = vpp:api_call("acl_del", { context = 42, acl_index = acl_index_to_delete }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +for ri, rv in ipairs(reply) do + print("Reply message #" .. tostring(ri)) + print(vpp.dump(rv)) + for ai, av in ipairs(rv.r) do + print("ACL rule #" .. tostring(ai) .. " : " .. vpp.dump(av)) + end + +end +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 4294967295 }) +print(vpp.dump(reply)) +print("---") + + +]] -- end of comment out + +---- Should be nothing ^^ +r = { + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::3"), dst_ip_prefix_len = 128 }, + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8::"), dst_ip_prefix_len = 32 }, + { is_permit = 1, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.2"), dst_ip_prefix_len = 32}, + { is_permit = 0, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.3"), dst_ip_prefix_len = 32 }, +} + +reply = vpp:api_call("acl_add", { context = 42, count = 5, r = r }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add", { context = 42, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_in + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s1, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +--reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +-- print(vpp.dump(reply)) +--print("---") + +^D^D^D + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 0 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 1 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 2 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping -c 3 192.0.2.2 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 3 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping -c 3 192.0.2.3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 4 + + +cd lua + +--- TEST OUTBOUND ACL + +r1 = { + { is_permit = 1, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::4"), dst_ip_prefix_len = 128 } +} + +reply = vpp:api_call("acl_add", { context = 42, count = 3, r = r1 }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + + +^D^D^D + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run VPP show trace +expect VPP match: outacl 2 rule 0 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 1 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss +run VPP show trace +expect VPP match: outacl 2 rule 1 + +run lua print("ALL GOOD!") + diff --git a/vpp-api/lua/examples/lute/script-inout-acl.lute b/vpp-api/lua/examples/lute/script-inout-acl.lute new file mode 100644 index 00000000000..d7e7423c7cf --- /dev/null +++ b/vpp-api/lua/examples/lute/script-inout-acl.lute @@ -0,0 +1,329 @@ +shell vppbuild +run vppbuild stty -echo +run vppbuild sudo -u ubuntu -i bash -c "(cd vpp && make plugins && echo ALLGOOD)" +expect vppbuild ALLGOOD + +shell s0 +shell s1 +shell s2 + + +cd s1 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + +cd s2 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + + +cd lua + +function session_get_bash_pid(s) + if not has_session(s) then + return nil + end + local fname = "/tmp/lute-"..s.."-pid.txt" + + session_exec(s, "echo $$ >" .. fname) + -- it's a dirty hack but it's quick + sleep(0.5) + local pid = io.lines(fname)() + print("Got pid for " .. s .. " : " .. tostring(pid)) + return(tonumber(pid)) +end + +function session_connect_with(s0, s1) + -- local pid0 = tostring(session_get_bash_pid(s0)) + local pid1 = tostring(session_get_bash_pid(s1)) + local eth_options = { "rx", "tx", "sg", "tso", "ufo", "gso", "gro", "lro", "rxvlan", "txvlan", "rxhash" } + local this_end = s0 .. "_" .. s1 + local other_end = s1 .. "_" .. s0 + session_exec(s0, "ip link add name " .. this_end .. " type veth peer name " .. other_end) + session_exec(s0, "ip link set dev " .. this_end .. " up promisc on") + for i, option in ipairs(eth_options) do + session_exec(s0, "/sbin/ethtool --offload " .. this_end .. " " .. option .. " off") + session_exec(s0, "/sbin/ethtool --offload " .. other_end .. " " .. option .. " off") + end + session_exec(s0, "ip link set dev " .. other_end .. " up promisc on netns /proc/" .. pid1 .. "/ns/net") + sleep(0.5) +end + +^D^D^D +run lua session_connect_with("s0", "s1") +run lua session_connect_with("s0", "s2") + +cd s1 +ip -6 addr add dev s1_s0 2001:db8:1::1/64 +ip -4 addr add dev s1_s0 192.0.2.1/24 +ip link set dev s1_s0 up promisc on +^D^D^D + +cd s2 +ip -6 addr add dev s2_s0 2001:db8:1::2/64 +ip -6 addr add dev s2_s0 2001:db8:1::3/64 +ip -6 addr add dev s2_s0 2001:db8:1::4/64 +ip -4 addr add dev s2_s0 192.0.2.2/24 +ip -4 addr add dev s2_s0:1 192.0.2.3/24 +ip -4 addr add dev s2_s0:2 192.0.2.4/24 +ip link set dev s2_s0 up promisc on +^D^D^D + +run s1 ip addr +run s2 ip addr +shell VPP +cd VPP +cd /home/ubuntu/vpp +make debug +r +^D^D^D +expect VPP DBGvpp# + +cd lua +-- Initialization of the Lua environment for talking to VPP +vpp = require("vpp-lapi") +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" +vpp:init({ pneum_path = pneum_path }) +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") +vpp:connect("aytest") +vpp:consume_api(root_dir .. "/plugins/acl-plugin/acl/acl.api", "acl") + +^D^D^D + +cd lua + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s1", hw_addr = "AAAAAA" }) +vpp_if_to_s1 = reply[1].sw_if_index + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s2", hw_addr = "AAAAAA" }) +vpp_if_to_s2 = reply[1].sw_if_index + +ifaces = { vpp_if_to_s1, vpp_if_to_s2 } + +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s1, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s2, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) + +bd_id = 42 + +reply = vpp:api_call("bridge_domain_add_del", { bd_id = bd_id, flood = 1, uu_flood = 1, forward = 1, learn = 1, arp_term = 0, is_add = 1 }) +print(vpp.dump(reply)) + +for i, v in ipairs(ifaces) do + reply = vpp:api_call("sw_interface_set_l2_bridge", { rx_sw_if_index = v, bd_id = bd_id, shg = 0, bvi = 0, enable = 1 } ) + print(vpp.dump(reply)) +end + +^D^D^D + +run s1 ping -c 3 192.0.2.2 +expect s1 packet loss +run s1 ping -c 3 192.0.2.3 +expect s1 packet loss +run s1 ping -c 3 192.0.2.4 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss + + +cd lua +--- ACL testing + +--[[ temporary comment out + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 230 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 8 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 15 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add_replace", { context = 42, acl_index = -1, count = 2, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add_replace", { context = 42, acl_index = -1, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add_replace", { context = 42, acl_index = -1, count = 0 }) +print(vpp.dump(reply)) +print("---") + +acl_index_to_delete = reply[1].acl_index +print("Deleting " .. tostring(acl_index_to_delete)) +reply = vpp:api_call("acl_del", { context = 42, acl_index = acl_index_to_delete }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +for ri, rv in ipairs(reply) do + print("Reply message #" .. tostring(ri)) + print(vpp.dump(rv)) + for ai, av in ipairs(rv.r) do + print("ACL rule #" .. tostring(ai) .. " : " .. vpp.dump(av)) + end + +end +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 4294967295 }) +print(vpp.dump(reply)) +print("---") + + +]] -- end of comment out + +---- Should be nothing ^^ +r = { + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::3"), dst_ip_prefix_len = 128 }, + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8::"), dst_ip_prefix_len = 32 }, + { is_permit = 1, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.2"), dst_ip_prefix_len = 32}, + { is_permit = 0, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.3"), dst_ip_prefix_len = 32 }, +} + +reply = vpp:api_call("acl_add_replace", { context = 42, acl_index = -1, count = 5, r = r }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add_replace", { context = 42, acl_index = -1, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_in + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s1, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +--reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +-- print(vpp.dump(reply)) +--print("---") + +^D^D^D + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 0 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 1 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 2 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping -c 3 192.0.2.2 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 3 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping -c 3 192.0.2.3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 4 + + +cd lua + +--- TEST OUTBOUND ACL + +r1 = { + { is_permit = 1, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::4"), dst_ip_prefix_len = 128 } +} + +reply = vpp:api_call("acl_add_replace", { context = 42, acl_index = -1, count = 3, r = r1 }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + + +^D^D^D + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run VPP show trace +expect VPP match: outacl 2 rule 0 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run VPP show trace +expect VPP match: inacl 0 rule 1 + +run VPP clear trace +run VPP trace add af-packet-input 100 +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss +run VPP show trace +expect VPP match: outacl 2 rule 1 + +run lua print("ALL GOOD!") + diff --git a/vpp-api/lua/examples/lute/script.lute b/vpp-api/lua/examples/lute/script.lute new file mode 100644 index 00000000000..c3dd90f2dbe --- /dev/null +++ b/vpp-api/lua/examples/lute/script.lute @@ -0,0 +1,7 @@ +shell s1 +expect s1 $ +run s1 echo testing123 +expect s1 $ +run s1 echo done +quit + diff --git a/vpp-api/lua/examples/lute/sessions-acl.lute b/vpp-api/lua/examples/lute/sessions-acl.lute new file mode 100644 index 00000000000..ac237ef9d90 --- /dev/null +++ b/vpp-api/lua/examples/lute/sessions-acl.lute @@ -0,0 +1,308 @@ +run lua -- collectgarbage("stop") + +shell vppbuild +run vppbuild stty -echo +run vppbuild sudo -u ubuntu -i bash -c "(cd vpp && make plugins && echo ALLGOOD)" +expect vppbuild ALLGOOD + +shell s0 +shell s1 +shell s2 + + +cd s1 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + +cd s2 +unshare -n /bin/bash +/sbin/ifconfig -a +^D^D^D + + +cd lua + +function session_get_bash_pid(s) + if not has_session(s) then + return nil + end + local fname = "/tmp/lute-"..s.."-pid.txt" + + session_exec(s, "echo $$ >" .. fname) + -- it's a dirty hack but it's quick + sleep(0.5) + local pid = io.lines(fname)() + print("Got pid for " .. s .. " : " .. tostring(pid)) + return(tonumber(pid)) +end + +function session_connect_with(s0, s1) + -- local pid0 = tostring(session_get_bash_pid(s0)) + local pid1 = tostring(session_get_bash_pid(s1)) + local eth_options = { "rx", "tx", "sg", "tso", "ufo", "gso", "gro", "lro", "rxvlan", "txvlan", "rxhash" } + local this_end = s0 .. "_" .. s1 + local other_end = s1 .. "_" .. s0 + session_exec(s0, "ip link add name " .. this_end .. " type veth peer name " .. other_end) + session_exec(s0, "ip link set dev " .. this_end .. " up promisc on") + for i, option in ipairs(eth_options) do + session_exec(s0, "/sbin/ethtool --offload " .. this_end .. " " .. option .. " off") + session_exec(s0, "/sbin/ethtool --offload " .. other_end .. " " .. option .. " off") + end + session_exec(s0, "ip link set dev " .. other_end .. " up promisc on netns /proc/" .. pid1 .. "/ns/net") + sleep(0.5) +end + +^D^D^D +run lua session_connect_with("s0", "s1") +run lua session_connect_with("s0", "s2") + +cd s1 +ip -6 addr add dev s1_s0 2001:db8:1::1/64 +ip -4 addr add dev s1_s0 192.0.2.1/24 +ip link set dev s1_s0 up promisc on +^D^D^D + +cd s2 +ip -6 addr add dev s2_s0 2001:db8:1::2/64 +ip -6 addr add dev s2_s0 2001:db8:1::3/64 +ip -6 addr add dev s2_s0 2001:db8:1::4/64 +ip -4 addr add dev s2_s0 192.0.2.2/24 +ip -4 addr add dev s2_s0:1 192.0.2.3/24 +ip -4 addr add dev s2_s0:2 192.0.2.4/24 +ip link set dev s2_s0 up promisc on +^D^D^D + +run s1 ip addr +run s2 ip addr +shell VPP +cd VPP +cd /home/ubuntu/vpp +make debug +r +^D^D^D +expect VPP DBGvpp# + +cd lua +-- Initialization of the Lua environment for talking to VPP +vpp = require("vpp-lapi") +root_dir = "/home/ubuntu/vpp" +pneum_path = root_dir .. "/build-root/install-vpp_debug-native/vpp-api/lib64/libpneum.so" +vpp:init({ pneum_path = pneum_path }) +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vlib-api/vlibmemory/memclnt.api") +vpp:consume_api(root_dir .. "/build-root/install-vpp_debug-native/vpp/vpp-api/vpe.api") +vpp:connect("aytest") +vpp:consume_api(root_dir .. "/plugins/acl-plugin/acl/acl.api", "acl") + +^D^D^D + +cd lua + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s1", hw_addr = "AAAAAA" }) +vpp_if_to_s1 = reply[1].sw_if_index + +reply = vpp:api_call("af_packet_create", { host_if_name = "s0_s2", hw_addr = "AAAAAA" }) +vpp_if_to_s2 = reply[1].sw_if_index + +ifaces = { vpp_if_to_s1, vpp_if_to_s2 } + +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s1, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) +reply = vpp:api_call("sw_interface_set_flags", { sw_if_index = vpp_if_to_s2, admin_up_down = 1, link_up_down = 1 }) +print(vpp.dump(reply)) + +bd_id = 42 + +reply = vpp:api_call("bridge_domain_add_del", { bd_id = bd_id, flood = 1, uu_flood = 1, forward = 1, learn = 1, arp_term = 0, is_add = 1 }) +print(vpp.dump(reply)) + +for i, v in ipairs(ifaces) do + reply = vpp:api_call("sw_interface_set_l2_bridge", { rx_sw_if_index = v, bd_id = bd_id, shg = 0, bvi = 0, enable = 1 } ) + print(vpp.dump(reply)) +end + +^D^D^D + +run s1 ping -c 3 192.0.2.2 +expect s1 packet loss +run s1 ping -c 3 192.0.2.3 +expect s1 packet loss +run s1 ping -c 3 192.0.2.4 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::2 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::3 +expect s1 packet loss +run s1 ping6 -c 3 2001:db8:1::4 +expect s1 packet loss + + +cd lua +--- ACL testing + +--[[ temporary comment out + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 230 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 8 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = 15 }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add", { context = 42, count = 2, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add", { context = 42, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = 0, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_add", { context = 42, count = 0 }) +print(vpp.dump(reply)) +print("---") + +acl_index_to_delete = reply[1].acl_index +print("Deleting " .. tostring(acl_index_to_delete)) +reply = vpp:api_call("acl_del", { context = 42, acl_index = acl_index_to_delete }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +for ri, rv in ipairs(reply) do + print("Reply message #" .. tostring(ri)) + print(vpp.dump(rv)) + for ai, av in ipairs(rv.r) do + print("ACL rule #" .. tostring(ai) .. " : " .. vpp.dump(av)) + end + +end +print("---") + +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") +reply = vpp:api_call("acl_del", { context = 42, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 0}) +print(vpp.dump(reply)) +print("---") + +reply = vpp:api_call("acl_dump", { context = 42, sw_if_index = 4294967295 }) +print(vpp.dump(reply)) +print("---") + + +]] -- end of comment out + +---- Should be nothing ^^ +r = { + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8:1::3"), dst_ip_prefix_len = 128 }, + { is_permit = 1, is_ipv6 = 1, dst_ip_addr = ip46("2001:db8::"), dst_ip_prefix_len = 32 }, + { is_permit = 1, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.2"), dst_ip_prefix_len = 32}, + { is_permit = 0, is_ipv6 = 0, dst_ip_addr = ip46("192.0.2.3"), dst_ip_prefix_len = 32 }, +} + +reply = vpp:api_call("acl_add", { context = 42, count = 5, r = r }) +print(vpp.dump(reply)) +print("---") +interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_add", { context = 42, count = 3, r = { { is_permit = 1, is_ipv6 = 1 }, { is_permit = 0, is_ipv6 = 1 }, { is_permit = 1, is_ipv6 = 0 } } }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_in + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s1, is_add = 1, is_input = 1, acl_index = interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +--- TEST OUTBOUND ACL + +r1 = { + { is_permit = 1, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::2"), dst_ip_prefix_len = 128 }, + { is_permit = 0, is_ipv6 = 1, src_ip_addr = ip46("2001:db8:1::1"), src_ip_prefix_len = 128, dst_ip_addr = ip46("2001:db8:1::4"), dst_ip_prefix_len = 128 }, + { is_permit = 2, is_ipv6 = 0 } +} + +reply = vpp:api_call("acl_add", { context = 42, count = 3, r = r1 }) +print(vpp.dump(reply)) +print("---") +interface_acl_out = reply[1].acl_index + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 0, acl_index = interface_acl_out }) +print(vpp.dump(reply)) +print("---") + +r2 = { + { is_permit = 1, is_ipv6 = 1 }, + { is_permit = 0, is_ipv6 = 0 } +} + +reply = vpp:api_call("acl_add", { context = 42, count = 2, r = r2 }) +print(vpp.dump(reply)) +print("---") +second_interface_acl_in = reply[1].acl_index + +reply = vpp:api_call("acl_interface_add_del", { context = 42, sw_if_index = vpp_if_to_s2, is_add = 1, is_input = 1, acl_index = second_interface_acl_in }) +print(vpp.dump(reply)) +print("---") + +^D^D^D + +run VPP show classify tables +run VPP clear trace +run VPP trace add af-packet-input 100 +run s2 nc -v -l -p 22 +run s1 nc 192.0.2.2 22 +run s1 echo +sleep 1 +run s1 break +sleep 1 +run VPP show trace +expect VPP match: outacl 2 rule 2 +run VPP show classify tables + + +run VPP show classify tables +run VPP clear trace +run VPP trace add af-packet-input 100 +run s2 nc -v -l -p 22 +run s1 nc 192.0.2.2 22 +run s1 echo +sleep 1 +run s1 break +sleep 1 +run VPP show trace +expect VPP match: outacl 2 rule 2 +run VPP show classify tables + + +run lua print("ALL GOOD!") + diff --git a/vpp-api/lua/vpp-lapi.lua b/vpp-api/lua/vpp-lapi.lua new file mode 100644 index 00000000000..4f2e3f53d59 --- /dev/null +++ b/vpp-api/lua/vpp-lapi.lua @@ -0,0 +1,752 @@ +--[[ +/* + * 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. + */ +]] + +local vpp = {} + +local ffi = require("ffi") + +--[[ + +The basic type definitions. A bit of weird gymnastic with +unionization of the hton* and ntoh* functions results +is to make handling of signed and unsigned types a bit cleaner, +essentially building typecasting into a C union. + +The vl_api_opaque_message_t is a synthetic type assumed to have +enough storage to hold the entire API message regardless of the type. +During the operation it is casted to the specific message struct types. + +]] + + +ffi.cdef([[ + +typedef uint8_t u8; +typedef int8_t i8; +typedef uint16_t u16; +typedef int16_t i16; +typedef uint32_t u32; +typedef int32_t i32; +typedef uint64_t u64; +typedef int64_t i64; +typedef double f64; +typedef float f32; + +#pragma pack(1) +typedef union { + u16 u16; + i16 i16; +} lua_ui16t; + +#pragma pack(1) +typedef union { + u32 u32; + i32 i32; +} lua_ui32t; + +u16 ntohs(uint16_t hostshort); +u16 htons(uint16_t hostshort); +u32 htonl(uint32_t along); +u32 ntohl(uint32_t along); +void *memset(void *s, int c, size_t n); +void *memcpy(void *dest, void *src, size_t n); + +#pragma pack(1) +typedef struct _vl_api_opaque_message { + u16 _vl_msg_id; + u8 data[65536]; +} vl_api_opaque_message_t; +]]) + + +-- CRC-based version stuff + +local crc32c_table = ffi.new('const uint32_t[256]', + { 0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, + 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB, + 0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, + 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24, + 0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, + 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384, + 0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, + 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B, + 0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, + 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35, + 0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, + 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA, + 0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, + 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A, + 0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, + 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595, + 0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, + 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957, + 0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, + 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198, + 0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, + 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38, + 0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, + 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7, + 0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, + 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789, + 0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, + 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46, + 0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, + 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6, + 0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, + 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829, + 0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, + 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93, + 0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, + 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C, + 0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, + 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC, + 0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, + 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033, + 0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, + 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D, + 0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, + 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982, + 0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, + 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622, + 0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, + 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED, + 0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, + 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F, + 0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, + 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0, + 0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, + 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540, + 0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, + 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F, + 0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, + 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1, + 0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, + 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E, + 0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, + 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E, + 0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, + 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351 } +); + +local function CRC8(crc, d) + return bit.bxor(bit.rshift(crc, 8), crc32c_table[bit.band(0xff, bit.bxor(crc, d))]) +end + +local function CRC16(crc, d) + crc = CRC8(crc, bit.band(d, 0xFF)) + d = bit.rshift(d, 8) + crc = CRC8(crc, bit.band(d, 0xFF)) + return crc +end + +local function string_crc(str, crc) + for i=1,#str do + -- print("S", i, string.byte(str, i), string.char(string.byte(str, i))) + crc = CRC8(crc, string.byte(str, i)) + end + return crc +end + +local tokens = { + { ["match"] =' ', ["act"] = { } }, + { ["match"] ='\n', ["act"] = { } }, + { ["match"] ="manual_endian", ["act"] = { "NODE_MANUAL_ENDIAN", "MANUAL_ENDIAN", 276 } }, + { ["match"] ="define", ["act"] = { "NODE_DEFINE", "DEFINE", 267 } }, + { ["match"] ="dont_trace", ["act"] = { "NODE_DONT_TRACE", "DONT_TRACE", 279 } }, + { ["match"] ="f64", ["act"] = { "NODE_F64", "PRIMTYPE", string_crc } }, + { ["match"] ="i16", ["act"] = { "NODE_I16", "PRIMTYPE", string_crc } }, + { ["match"] ="i32", ["act"] = { "NODE_I32", "PRIMTYPE", string_crc } }, + { ["match"] ="i64", ["act"] = { "NODE_I64", "PRIMTYPE", string_crc } }, + { ["match"] ="i8", ["act"] = { "NODE_I8", "PRIMTYPE", string_crc } }, + { ["match"] ="manual_print", ["act"] = { "NODE_MANUAL_PRINT", "MANUAL_PRINT", 275 } }, + { ["match"] ="noversion", ["act"] = { "NODE_NOVERSION", "NOVERSION", 274 } }, + { ["match"] ="packed", ["act"] = { "NODE_PACKED", "TPACKED", 266 } }, + { ["match"] ="typeonly", ["act"] = { "NODE_TYPEONLY", "TYPEONLY", 278 } }, + { ["match"] ="u16", ["act"] = { "NODE_U16", "PRIMTYPE", string_crc } }, + { ["match"] ="u32", ["act"] = { "NODE_U32", "PRIMTYPE", string_crc } }, + { ["match"] ="u64", ["act"] = { "NODE_U64", "PRIMTYPE", string_crc } }, + { ["match"] ="u8", ["act"] = { "NODE_U8", "PRIMTYPE", string_crc } }, + { ["match"] ="union", ["act"] = { "NODE_UNION", "UNION", 271 } }, + { ["match"] ="uword", ["act"] = { "NODE_UWORD", "PRIMTYPE", string_crc } }, + { ["match"] ="%(", ["act"] = { "NODE_LPAR", "LPAR", 259 } }, + { ["match"] ="%)", ["act"] = { "NODE_RPAR", "RPAR", 258 } }, + { ["match"] =";", ["act"] = { "NODE_SEMI", "SEMI", 260 } }, + { ["match"] ="%[", ["act"] = { "NODE_LBRACK", "LBRACK", 261 } }, + { ["match"] ="%]", ["act"] = { "NODE_RBRACK", "RBRACK", 262 } }, + { ["match"] ="%{", ["act"] = { "NODE_LCURLY", "LCURLY", 268 } }, + { ["match"] ="%}", ["act"] = { "NODE_RCURLY", "RCURLY", 269 } }, + { ["match"] ='%b""', ["act"] = { "NODE_STRING", "STRING", string_crc } }, + { ["match"] ='%b@@', ["act"] = { "NODE_HELPER", "HELPER_STRING", string_crc } }, + -- TODO: \ must be consumed + { ["match"] ='[_a-zA-Z][_a-zA-Z0-9]*', + ["act"] = { "NODE_NAME", "NAME", string_crc } }, + { ["match"] ='[0-9]+', ["act"] = { "NODE_NUMBER", "NUMBER", string_crc } }, + { ["match"] ='#[^\n]+', ["act"] = { "NODE_PRAGMA", "PRAGMA", nil } }, +} + + +function vpp.crc_version_string(data) + local input_crc = 0 + -- Get rid of comments + data = data:gsub("/%*.-%*/", "") + data = data:gsub("//[^\n]+", "") + -- print(data) + idx = 1 + while (true) do + local matched = nil + for k, v in ipairs(tokens) do + if not matched then + local x, y, cap = string.find(data, v["match"], idx) + if x == idx then + matched = { ["node"] = v["act"], ["x"] = x, ["y"] = y, ["cap"] = cap, ["chars"] = string.sub(data, x, y) } + -- print(k, v, x, y, cap, matched.chars, matched.node[0] ) + end + end + end + if matched then + idx = idx + (matched.y - matched.x + 1) + if matched.node[1] then + local act = matched.node[3] + if type(act) == "function" then + input_crc = act(matched.chars, input_crc) + elseif type(act) == "number" then + input_crc = CRC16(input_crc, act) + end + -- print(vpp.dump(matched)) + end + else + -- print("NOT MATCHED!") + local crc = CRC16(input_crc, 0xFFFFFFFF) + return string.sub(string.format("%x", crc), -8) + end + end +end + + +function vpp.dump(o) + if type(o) == 'table' then + local s = '{ ' + for k,v in pairs(o) do + if type(k) ~= 'number' then k = '"'..k..'"' end + s = s .. '['..k..'] = ' .. vpp.dump(v) .. ',' + end + return s .. '} ' + else + return tostring(o) + end +end + +function vpp.hex_dump(buf) + local ret = {} + for i=1,math.ceil(#buf/16) * 16 do + if (i-1) % 16 == 0 then table.insert(ret, string.format('%08X ', i-1)) end + table.insert(ret, ( i > #buf and ' ' or string.format('%02X ', buf:byte(i)) )) + if i % 8 == 0 then table.insert(ret, ' ') end + if i % 16 == 0 then table.insert(ret, buf:sub(i-16+1, i):gsub('%c','.')..'\n' ) end + end + return table.concat(ret) +end + + +function vpp.c_str(text_in) + local text = text_in -- \000 will be helpfully added by ffi.copy + local c_str = ffi.new("char[?]", #text+1) + ffi.copy(c_str, text) + return c_str +end + + +function vpp.init(vpp, args) + local pneum_api = args.pneum_api or [[ + int cough_pneum_attach(char *pneum_path, char *cough_path); + int pneum_connect(char *name, char *chroot_prefix); + int pneum_connect_sync(char *name, char *chroot_prefix); + int pneum_disconnect(void); + int pneum_read(char **data, int *l); + int pneum_write(char *data, int len); + +void pneum_data_free(char *data); +]] + + vpp.pneum_path = args.pneum_path + ffi.cdef(pneum_api) + local init_res = 0 + if pcall(function() + vpp.cough_path = args.cough_path or "./libcough.so" + vpp.cough = ffi.load(vpp.cough_path) + end) then + pcall(function() + if(vpp.cough.cough_pneum_attach) then + vpp.pneum_is_cough = true + print("libcough detected\n") + init_res = vpp.cough.cough_pneum_attach(vpp.c_str(vpp.pneum_path), vpp.c_str(vpp.cough_path)) + vpp.pneum = vpp.cough + end + end) + else + vpp.pneum = ffi.load(vpp.pneum_path) + end + if (init_res < 0) then + return nil + end + + vpp.next_msg_num = 1 + vpp.msg_name_to_number = {} + vpp.msg_name_to_fields = {} + vpp.msg_number_to_name = {} + vpp.msg_number_to_type = {} + vpp.msg_number_to_pointer_type = {} + vpp.c_type_to_fields = {} + vpp.events = {} + vpp.plugin_version = {} + vpp.is_connected = false + + + vpp.t_lua2c = {} + vpp.t_c2lua = {} + vpp.t_lua2c["u8"] = function(c_type, src, dst_c_ptr) + if type(src) == "string" then + -- ffi.copy adds a zero byte at the end. Grrr. + -- ffi.copy(dst_c_ptr, src) + ffi.C.memcpy(dst_c_ptr, vpp.c_str(src), #src) + return(#src) + elseif type(src) == "table" then + for i,v in ipairs(src) do + ffi.cast("u8 *", dst_c_ptr)[i-1] = v + end + return(#src) + else + return 1, src -- ffi.cast("u8", src) + end + end + vpp.t_c2lua["u8"] = function(c_type, src_ptr, src_len) + if src_len then + return ffi.string(src_ptr, src_len) + else + return (tonumber(src_ptr)) + end + end + + vpp.t_lua2c["u16"] = function(c_type, src, dst_c_ptr) + if type(src) == "table" then + for i,v in ipairs(src) do + ffi.cast("u16 *", dst_c_ptr)[i-1] = ffi.C.htons(v) + end + return(2 * #src) + else + return 2, (ffi.C.htons(src)) + end + end + vpp.t_c2lua["u16"] = function(c_type, src_ptr, src_len) + if src_len then + local out = {} + for i = 0,src_len-1 do + out[i+1] = tonumber(ffi.C.ntohs(src_ptr[i])) + end + return out + else + return (tonumber(ffi.C.ntohs(src_ptr))) + end + end + + vpp.t_lua2c["u32"] = function(c_type, src, dst_c_ptr) + if type(src) == "table" then + for i,v in ipairs(src) do + ffi.cast("u32 *", dst_c_ptr)[i-1] = ffi.C.htonl(v) + end + return(4 * #src) + else + return 4, (ffi.C.htonl(src)) + end + end + vpp.t_c2lua["u32"] = function(c_type, src_ptr, src_len) + if src_len then + local out = {} + for i = 0,src_len-1 do + out[i+1] = tonumber(ffi.C.ntohl(src_ptr[i])) + end + return out + else + return (tonumber(ffi.C.ntohl(src_ptr))) + end + end + vpp.t_lua2c["i32"] = function(c_type, src, dst_c_ptr) + if type(src) == "table" then + for i,v in ipairs(src) do + ffi.cast("i32 *", dst_c_ptr)[i-1] = ffi.C.htonl(v) + end + return(4 * #src) + else + return 4, (ffi.C.htonl(src)) + end + end + vpp.t_c2lua["i32"] = function(c_type, src_ptr, src_len) + local ntohl = function(src) + local u32val = ffi.cast("u32", src) + local ntohlval = (ffi.C.ntohl(u32val)) + local out = tonumber(ffi.cast("i32", ntohlval + 0LL)) + return out + end + if src_len then + local out = {} + for i = 0,src_len-1 do + out[i+1] = tonumber(ntohl(src_ptr[i])) + end + else + return (tonumber(ntohl(src_ptr))) + end + end + + vpp.t_lua2c["u64"] = function(c_type, src, dst_c_ptr) + if type(src) == "table" then + for i,v in ipairs(src) do + ffi.cast("u64 *", dst_c_ptr)[i-1] = v --- FIXME ENDIAN + end + return(8 * #src) + else + return 8, ffi.cast("u64", src) --- FIXME ENDIAN + end + end + vpp.t_c2lua["u64"] = function(c_type, src_ptr, src_len) + if src_len then + local out = {} + for i = 0,src_len-1 do + out[i+1] = tonumber(src_ptr[i]) -- FIXME ENDIAN + end + return out + else + return (tonumber(src_ptr)) --FIXME ENDIAN + end + end + + + + + vpp.t_lua2c["__MSG__"] = function(c_type, src, dst_c_ptr) + local dst = ffi.cast(c_type .. " *", dst_c_ptr) + local additional_len = 0 + local fields_info = vpp.c_type_to_fields[c_type] + -- print("__MSG__ type: " .. tostring(c_type)) + ffi.C.memset(dst_c_ptr, 0, ffi.sizeof(dst[0])) + -- print(vpp.dump(fields_info)) + -- print(vpp.dump(src)) + for k,v in pairs(src) do + local field = fields_info[k] + if not field then + print("ERROR: field " .. tostring(k) .. " in message " .. tostring(c_type) .. " is unknown") + end + local lua2c = vpp.t_lua2c[field.c_type] + -- print("__MSG__ field " .. tostring(k) .. " : " .. vpp.dump(field)) + -- if the field is not an array type, try to coerce the argument to a number + if not field.array and type(v) == "string" then + v = tonumber(v) + end + if not lua2c then + print("__MSG__ " .. tostring(c_type) .. " t_lua2c: can not store field " .. field.name .. + " type " .. field.c_type .. " dst " .. tostring(dst[k])) + return 0 + end + local len = 0 + local val = nil + if field.array and (type(v) == "table") then + print("NTFY: field " .. tostring(k) .. " in message " .. tostring(c_type) .. " is an array") + for field_i, field_v in ipairs(v) do + print("NTFY: setting member#" .. tostring(field_i) .. " to value " .. vpp.dump(field_v)) + local field_len, field_val = lua2c(field.c_type, field_v, dst[k][field_i-1]) + len = len + field_len + end + else + len, val = lua2c(field.c_type, v, dst[k]) + end + if not field.array then + dst[k] = val + else + if 0 == field.array then + additional_len = additional_len + len + -- print("Adding " .. tostring(len) .. " bytes due to field " .. tostring(field.name)) + -- If there is a variable storing the length + -- and the input table does not set it, do magic + if field.array_size and not src[field.array_size] then + local size_field = fields_info[field.array_size] + if size_field then + dst[field.array_size] = vpp.t_c2lua[size_field.c_type](size_field.c_type, len) + end + end + end + end + -- print("Full message:\n" .. vpp.hex_dump(ffi.string(ffi.cast('void *', req_store_cache), 64))) + end + return (ffi.sizeof(dst[0])+additional_len) + end + + vpp.t_c2lua["__MSG__"] = function(c_type, src_ptr, src_len) + local out = {} + local reply_typed_ptr = ffi.cast(c_type .. " *", src_ptr) + local field_desc = vpp.c_type_to_fields[c_type] + if src_len then + for i = 0,src_len-1 do + out[i+1] = vpp.t_c2lua[c_type](c_type, src_ptr[i]) + end + return out + end + + for k, v in pairs(field_desc) do + local v_c2lua = vpp.t_c2lua[v.c_type] + if v_c2lua then + local len = v.array + -- print(dump(v)) + if len then + local len_field_name = k .. "_length" + local len_field = field_desc[len_field_name] + if (len_field) then + local real_len = vpp.t_c2lua[len_field.c_type](len_field.c_type, reply_typed_ptr[len_field_name]) + out[k] = v_c2lua(v.c_type, reply_typed_ptr[k], real_len) + elseif len == 0 then + -- check if len = 0, then must be a field which contains the size + len_field = field_desc[v.array_size] + local real_len = vpp.t_c2lua[len_field.c_type](len_field.c_type, reply_typed_ptr[v.array_size]) + -- print("REAL length: " .. vpp.dump(v) .. " : " .. tostring(real_len)) + out[k] = v_c2lua(v.c_type, reply_typed_ptr[k], real_len) + else + -- alas, just stuff the entire array + out[k] = v_c2lua(v.c_type, reply_typed_ptr[k], len) + end + else + out[k] = v_c2lua(v.c_type, reply_typed_ptr[k]) + end + else + out[k] = "<no accessor function for type " .. tostring(v.c_type) .. ">" + end + -- print(k, out[k]) + end + return out + end + + return vpp +end + +function vpp.connect(vpp, client_name) + local name = "lua_client" + if client_name then + name = client_name + end + local ret = vpp.pneum.pneum_connect_sync(vpp.c_str(client_name), nil) + if tonumber(ret) == 0 then + vpp.is_connected = true + end + end + +function vpp.disconnect(vpp) + vpp.pneum.pneum_disconnect() + end + +function vpp.consume_api(vpp, path, plugin_name) + -- print("Consuming the VPP api from "..path) + local ffii = {} + local f = io.open(path, "r") + if not f then + print("Could not open " .. path) + return nil + end + local data = f:read("*all") + -- Remove all C comments + data = data:gsub("/%*.-%*/", "") + if vpp.is_connected and not plugin_name then + print(path .. ": must specify plugin name!") + return + end + if plugin_name then + vpp.plugin_version[plugin_name] = vpp.crc_version_string(data) + local full_plugin_name = plugin_name .. "_" .. vpp.plugin_version[plugin_name] + local reply = vpp:api_call("get_first_msg_id", { name = full_plugin_name } ) + vpp.next_msg_num = tonumber(reply[1].first_msg_id) + print("Plugin " .. full_plugin_name .. " first message is " .. tostring(vpp.next_msg_num)) + end + -- print ("data len: ", #data) + data = data:gsub("\n(.-)(%S+)%s*{([^}]*)}", function (preamble, name, members) + local _, typeonly = preamble:gsub("typeonly", "") + local maybe_msg_id_field = { [0] = "u16 _vl_msg_id;", "" } + local onedef = "\n\n#pragma pack(1)\ntypedef struct _vl_api_"..name.. " {\n" .. + -- " u16 _vl_msg_id;" .. + maybe_msg_id_field[typeonly] .. + members:gsub("%[[a-zA-Z_]+]", "[0]") .. + "} vl_api_" .. name .. "_t;" + + local c_type = "vl_api_" .. name .. "_t" + + local fields = {} + -- vpp.msg_name_to_fields[name] = fields + -- print("CTYPE " .. c_type) + vpp.c_type_to_fields[c_type] = fields + vpp.t_lua2c[c_type] = vpp.t_lua2c["__MSG__"] + vpp.t_c2lua[c_type] = vpp.t_c2lua["__MSG__"] + local mirec = { name = "_vl_msg_id", c_type = "u16", array = nil, array_size = nil } + if typeonly == 0 then + fields[mirec.name] = mirec + end + + -- populate the field reflection table for the message + -- sets the various type information as well as the accessors for lua<->C conversion + members:gsub("(%S+)%s+(%S+);", function (fieldtype, fieldname) + local fieldcount = nil + local fieldcountvar = nil + -- data = data:gsub("%[[a-zA-Z_]+]", "[0]") + fieldname = fieldname:gsub("(%b[])", function(cnt) + fieldcount = tonumber(cnt:sub(2, -2)); + if not fieldcount then + fieldcount = 0 + fieldcountvar = cnt:sub(2, -2) + end + return "" + end) + local fieldrec = { name = fieldname, c_type = fieldtype, array = fieldcount, array_size = fieldcountvar } + if fieldcount then + if fieldtype == "u8" then + -- any array of bytes is treated as a string + elseif vpp.t_lua2c[fieldtype] then + -- print("Array of " .. fieldtype .. " is ok!") + else + print("Unknown array type: ", name, " : " , fieldname, " : ", fieldtype, ":", fieldcount, ":", fieldcountvar) + end + end + fields[fieldname] = fieldrec + end) + + -- print(dump(fields)) + + if typeonly == 0 then + local this_message_number = vpp.next_msg_num + vpp.next_msg_num = vpp.next_msg_num + 1 + vpp.msg_name_to_number[name] = this_message_number + vpp.msg_number_to_name[this_message_number] = name + vpp.msg_number_to_type[this_message_number] = "vl_api_" .. name .. "_t" + vpp.msg_number_to_pointer_type[this_message_number] = vpp.msg_number_to_type[this_message_number] .. " *" + onedef = onedef .. "\n\n enum { vl_msg_" .. name .. " = " .. this_message_number .. " };\n\n" + end + table.insert(ffii, onedef); + return ""; + end) + local cdef = table.concat(ffii) + -- print(cdef) + ffi.cdef(cdef) + end + + +function vpp.lua2c(vpp, c_type, src, dst_c_ptr) + -- returns the number of bytes written to memory pointed by dst + local lua2c = vpp.t_lua2c[c_type] + if lua2c then + return(lua2c(c_type, src, dst_c_ptr)) + else + print("vpp.lua2c: do not know how to store type " .. c_type) + return 0 + end +end + +function vpp.c2lua(vpp, c_type, src_ptr, src_len) + -- returns the lua data structure + local c2lua = vpp.t_c2lua[c_type] + if c2lua then + return(c2lua(c_type, src_ptr, src_len)) + else + print("vpp.c2lua: do not know how to load type " .. c_type) + return nil + end +end + +local req_store_cache = ffi.new("vl_api_opaque_message_t[1]") + +function vpp.api_write(vpp, api_name, req_table) + local msg_num = vpp.msg_name_to_number[api_name] + if not msg_num then + print ("API call "..api_name.." is not known") + return nil + end + + if not req_table then + req_table = {} + end + req_table._vl_msg_id = msg_num + + local packed_len = vpp:lua2c(vpp.msg_number_to_type[msg_num], req_table, req_store_cache) + if vpp.debug_dump then + print("Write Message length: " .. tostring(packed_len) .. "\n" .. vpp.hex_dump(ffi.string(ffi.cast('void *', req_store_cache), packed_len))) + end + + res = vpp.pneum.pneum_write(ffi.cast('void *', req_store_cache), packed_len) + return res + end + +local rep_store_cache = ffi.new("vl_api_opaque_message_t *[1]") +local rep_len_cache = ffi.new("int[1]") + +function vpp.api_read(vpp) + local rep_type = "vl_api_opaque_message_t" + local rep = rep_store_cache + local replen = rep_len_cache + res = vpp.pneum.pneum_read(ffi.cast("void *", rep), replen) + if vpp.debug_dump then + print("Read Message length: " .. tostring(replen[0]) .. "\n" .. vpp.hex_dump(ffi.string(ffi.cast('void *', rep[0]), replen[0]))) + end + + local reply_msg_num = ffi.C.ntohs(rep[0]._vl_msg_id) + local reply_msg_name = vpp.msg_number_to_name[reply_msg_num] + + local reply_typed_ptr = ffi.cast(vpp.msg_number_to_pointer_type[reply_msg_num], rep[0]) + local out = vpp:c2lua(vpp.msg_number_to_type[reply_msg_num], rep[0], nil, replen[0]) + if type(out) == "table" then + out["luaapi_message_name"] = reply_msg_name + end + + vpp.pneum.pneum_data_free(ffi.cast('void *',rep[0])) + + return reply_msg_name, out + end + +function vpp.api_call(vpp, api_name, req_table, options_in) + local msg_num = vpp.msg_name_to_number[api_name] + local end_message_name = api_name .."_reply" + local replies = {} + local cstruct = "" + local options = options_in or {} + if msg_num then + vpp:api_write(api_name, req_table) + if not vpp.msg_name_to_number[end_message_name] or options.force_ping then + end_message_name = "control_ping_reply" + vpp:api_write("control_ping") + end + repeat + reply_message_name, reply = vpp:api_read() + if reply and not reply.context then + -- there may be async events inbetween + table.insert(vpp.events, reply) + else + if reply_message_name ~= "control_ping_reply" then + -- do not insert the control ping encapsulation + table.insert(replies, reply) + end + end + -- print(reply) + until reply_message_name == end_message_name + else + print(api_name .. " is an unknown API call") + return nil + end + return replies + end + +return vpp |