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-rw-r--r--vlib/example/main_stub.c385
-rw-r--r--vlib/example/mc_test.c370
-rw-r--r--vlib/example/plex_test.c490
3 files changed, 1245 insertions, 0 deletions
diff --git a/vlib/example/main_stub.c b/vlib/example/main_stub.c
new file mode 100644
index 00000000000..4213d912acd
--- /dev/null
+++ b/vlib/example/main_stub.c
@@ -0,0 +1,385 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <math.h>
+
+int main (int argc, char * argv[])
+{
+ return vlib_unix_main (argc, argv);
+}
+
+static clib_error_t *
+main_stub_init (vlib_main_t * vm)
+{
+ clib_error_t * error;
+
+ if ((error = unix_physmem_init (vm, /* fail_if_physical_memory_not_present */ 0)))
+ return error;
+
+ if ((error = vlib_call_init_function (vm, unix_cli_init)))
+ return error;
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (main_stub_init);
+
+#if 0
+/* Node test code. */
+typedef struct {
+ int scalar;
+ int vector[0];
+} my_frame_t;
+
+static u8 * format_my_node_frame (u8 * s, va_list * va)
+{
+ vlib_frame_t * f = va_arg (*va, vlib_frame_t *);
+ my_frame_t * g = vlib_frame_args (f);
+ int i;
+
+ s = format (s, "scalar %d, vector { ", g->scalar);
+ for (i = 0; i < f->n_vectors; i++)
+ s = format (s, "%d, ", g->vector[i]);
+ s = format (s, " }");
+
+ return s;
+}
+
+static uword
+my_func (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ vlib_node_t * node;
+ my_frame_t * y;
+ u32 i, n_left = 0;
+ static int serial;
+ int verbose;
+
+ node = vlib_get_node (vm, rt->node_index);
+
+ verbose = 0;
+
+ if (verbose && f)
+ vlib_cli_output (vm, "%v: call frame %p %U", node->name,
+ f, format_my_node_frame, f);
+
+ if (rt->n_next_nodes > 0)
+ {
+ vlib_frame_t * next = vlib_get_next_frame (vm, rt, /* next index */ 0);
+ n_left = VLIB_FRAME_SIZE - next->n_vectors;
+ y = vlib_frame_args (next);
+ y->scalar = serial++;
+ }
+ else
+ y = 0;
+
+ for (i = 0; i < 5; i++)
+ {
+ if (y)
+ {
+ ASSERT (n_left > 0);
+ n_left--;
+ y->vector[i] = y->scalar + i;
+ }
+ }
+ if (y)
+ vlib_put_next_frame (vm, rt, /* next index */ 0, n_left);
+
+ if (verbose)
+ vlib_cli_output (vm, "%v: return frame %p", node->name, f);
+
+ return i;
+}
+
+VLIB_REGISTER_NODE (my_node1,static) = {
+ .function = my_func,
+ .type = VLIB_NODE_TYPE_INPUT,
+ .name = "my-node1",
+ .scalar_size = sizeof (my_frame_t),
+ .vector_size = STRUCT_SIZE_OF (my_frame_t, vector[0]),
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "my-node2",
+ },
+};
+
+VLIB_REGISTER_NODE (my_node2,static) = {
+ .function = my_func,
+ .name = "my-node2",
+ .scalar_size = sizeof (my_frame_t),
+ .vector_size = STRUCT_SIZE_OF (my_frame_t, vector[0]),
+};
+
+#endif
+
+#if 0
+
+typedef enum {
+ MY_EVENT_TYPE1,
+ MY_EVENT_TYPE2,
+} my_process_completion_type_t;
+
+typedef struct {
+ int a;
+ f64 b;
+} my_process_event_data_t;
+
+static u8 * format_my_process_event_data (u8 * s, va_list * va)
+{
+ my_process_event_data_t * d = va_arg (*va, my_process_event_data_t *);
+ return format (s, "{ a %d b %.6f}", d->a, d->b);
+}
+
+static uword
+my_proc (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ vlib_node_t * node;
+ u32 i;
+
+ node = vlib_get_node (vm, rt->node_index);
+
+ vlib_cli_output (vm, "%v: call frame %p", node->name, f);
+
+ for (i = 0; i < 5; i++)
+ {
+ vlib_cli_output (vm, "%v: %d", node->name, i);
+ vlib_process_suspend (vm, 1e0 /* secs */);
+ }
+
+ vlib_cli_output (vm, "%v: return frame %p", node->name, f);
+
+ if (0)
+ {
+ uword n_events_seen, type, * data = 0;
+
+ for (n_events_seen = 0; n_events_seen < 2;)
+ {
+ vlib_process_wait_for_event (vm);
+ type = vlib_process_get_events (vm, &data);
+ n_events_seen += vec_len (data);
+ vlib_cli_output (vm, "%U %v: completion #%d type %d data 0x%wx",
+ format_time_interval, "h:m:s:u", vlib_time_now (vm),
+ node->name, i, type, data[0]);
+ _vec_len (data) = 0;
+ }
+
+ vec_free (data);
+ }
+ else
+ {
+ uword n_events_seen, i, type;
+ my_process_event_data_t * data;
+ for (n_events_seen = 0; n_events_seen < 2;)
+ {
+ vlib_process_wait_for_event (vm);
+ data = vlib_process_get_event_data (vm, &type);
+ vec_foreach_index (i, data) {
+ vlib_cli_output (vm, "%U event type %d data %U",
+ format_time_interval, "h:m:s:u", vlib_time_now (vm),
+ type, format_my_process_event_data, data);
+ }
+ n_events_seen += vec_len (data);
+ vlib_process_put_event_data (vm, data);
+ }
+ }
+
+ return i;
+}
+
+VLIB_REGISTER_NODE (my_proc_node,static) = {
+ .function = my_proc,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "my-proc",
+};
+
+static uword
+my_proc_input (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ static int i;
+
+ if (i++ < 2)
+ {
+ if (0)
+ vlib_process_signal_event (vm, my_proc_node.index,
+ i == 1 ? MY_EVENT_TYPE1 : MY_EVENT_TYPE2,
+ 0x12340000 + i);
+ else
+ {
+ my_process_event_data_t * d;
+ f64 dt = 5;
+ d = vlib_process_signal_event_at_time (vm,
+ i * dt,
+ my_proc_node.index,
+ i == 1 ? MY_EVENT_TYPE1 : MY_EVENT_TYPE2,
+ 1 /* elts */,
+ sizeof (d[0]));
+ d->a = i;
+ d->b = vlib_time_now (vm);
+ }
+ }
+ else
+ vlib_node_set_state (vm, rt->node_index, VLIB_NODE_STATE_DISABLED);
+
+ return 0;
+}
+
+VLIB_REGISTER_NODE (my_proc_input_node,static) = {
+ .function = my_proc_input,
+ .type = VLIB_NODE_TYPE_INPUT,
+ .name = "my-proc-input",
+};
+
+static uword _unformat_farith (unformat_input_t * i, va_list * args)
+{
+ u32 prec = va_arg (*args, u32);
+ f64 * result = va_arg (*args, f64 *);
+ f64 tmp[2];
+
+ /* Binary operations in from lowest to highest precedence. */
+ char * binops[] = {
+ "+%U", "-%U", "/%U", "*%U", "^%U",
+ };
+
+ if (prec <= ARRAY_LEN (binops) - 1
+ && unformat_user (i, _unformat_farith, prec + 1, &tmp[0]))
+ {
+ int p;
+ for (p = prec; p < ARRAY_LEN (binops); p++)
+ {
+ if (unformat (i, binops[p],
+ _unformat_farith, prec + 0, &tmp[1]))
+ {
+ switch (binops[p][0])
+ {
+ case '+': result[0] = tmp[0] + tmp[1]; break;
+ case '-': result[0] = tmp[0] - tmp[1]; break;
+ case '/': result[0] = tmp[0] / tmp[1]; break;
+ case '*': result[0] = tmp[0] * tmp[1]; break;
+ case '^': result[0] = pow (tmp[0], tmp[1]); break;
+ default: abort ();
+ }
+ return 1;
+ }
+ }
+ result[0] = tmp[0];
+ return 1;
+ }
+
+ else if (unformat (i, "-%U",
+ _unformat_farith, prec + 0, &tmp[0]))
+ {
+ result[0] = -tmp[0];
+ return 1;
+ }
+
+ else if (unformat (i, "(%U)",
+ _unformat_farith, 0, &tmp[0]))
+ {
+ result[0] = tmp[0];
+ return 1;
+ }
+
+ else if (unformat (i, "%f", result))
+ return 1;
+
+ else
+ return 0;
+}
+
+static uword unformat_farith (unformat_input_t * i, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ f64 * result = va_arg (*args, f64 *);
+ return unformat_user (i, _unformat_farith, 0, result);
+}
+
+static uword unformat_integer (unformat_input_t * i, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ u32 * data = va_arg (*args, u32 *);
+ return unformat (i, "%d", data);
+}
+
+static VLIB_CLI_PARSE_RULE (my_parse_rule1) = {
+ .name = "decimal_integer",
+ .short_help = "a decimal integer",
+ .unformat_function = unformat_integer,
+ .data_size = sizeof (u32),
+};
+
+static VLIB_CLI_PARSE_RULE (my_parse_rule2) = {
+ .name = "float_expression",
+ .short_help = "floating point expression",
+ .unformat_function = unformat_farith,
+ .data_size = sizeof (f64),
+};
+
+static clib_error_t *
+bar_command (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ switch (cmd->function_arg)
+ {
+ case 2: {
+ u32 * d, * e;
+ d = vlib_cli_get_parse_rule_result (vm, 0);
+ e = vlib_cli_get_parse_rule_result (vm, 1);
+ vlib_cli_output (vm, "bar2 %d %d", d[0], e[0]);
+ break;
+ }
+
+ case 1: {
+ u32 * d = vlib_cli_get_parse_rule_result (vm, 0);
+ vlib_cli_output (vm, "bar1 %d", d[0]);
+ break;
+ }
+
+ case 3: {
+ f64 * d = vlib_cli_get_parse_rule_result (vm, 0);
+ vlib_cli_output (vm, "expr %.6f", d[0]);
+ }
+ }
+
+ return 0;
+}
+
+VLIB_CLI_COMMAND (bar_command2, static) = {
+ .path = "bar %decimal_integer",
+ .short_help = "bar1 command",
+ .function = bar_command,
+ .function_arg = 1,
+};
+VLIB_CLI_COMMAND (bar_command1, static) = {
+ .path = "bar %decimal_integer %decimal_integer",
+ .short_help = "bar2 command",
+ .function = bar_command,
+ .function_arg = 2,
+};
+VLIB_CLI_COMMAND (bar_command3, static) = {
+ .path = "zap %float_expression",
+ .short_help = "bar3 command",
+ .function = bar_command,
+ .function_arg = 3,
+};
+
+#endif
+
diff --git a/vlib/example/mc_test.c b/vlib/example/mc_test.c
new file mode 100644
index 00000000000..2a7fe9867fe
--- /dev/null
+++ b/vlib/example/mc_test.c
@@ -0,0 +1,370 @@
+/*
+ * mc_test.c: test program for vlib mc
+ *
+ * Copyright (c) 2010 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vlib/vlib.h>
+#include <vlib/unix/mc_socket.h>
+#include <vppinfra/random.h>
+
+typedef struct {
+ u32 min_n_msg_bytes;
+ u32 max_n_msg_bytes;
+ u32 tx_serial;
+ u32 rx_serial;
+ u32 seed;
+ u32 verbose;
+ u32 validate;
+ u32 window_size;
+ f64 min_delay, max_delay;
+ f64 n_packets_to_send;
+} mc_test_main_t;
+
+always_inline u32
+choose_msg_size (mc_test_main_t * tm)
+{
+ u32 r = tm->min_n_msg_bytes;
+ if (tm->max_n_msg_bytes > tm->min_n_msg_bytes)
+ r += random_u32 (&tm->seed) % (1 + tm->max_n_msg_bytes - tm->min_n_msg_bytes);
+ return r;
+}
+
+static mc_test_main_t mc_test_main;
+
+static void serialize_test_msg (serialize_main_t * m, va_list * va)
+{
+ mc_test_main_t * tm = &mc_test_main;
+ u32 n_bytes = choose_msg_size (tm);
+ u8 * msg;
+ int i;
+ serialize_integer (m, n_bytes, sizeof (n_bytes));
+ msg = serialize_get (m, n_bytes);
+ for (i = 0; i < n_bytes; i++)
+ msg[i] = i + tm->tx_serial;
+ tm->tx_serial += n_bytes;
+}
+
+static void unserialize_test_msg (serialize_main_t * m, va_list * va)
+{
+ mc_test_main_t * tm = &mc_test_main;
+ u32 i, n_bytes, dump_msg = tm->verbose;
+ u8 * p;
+ unserialize_integer (m, &n_bytes, sizeof (n_bytes));
+ p = unserialize_get (m, n_bytes);
+ if (tm->validate)
+ for (i = 0; i < n_bytes; i++)
+ if (p[i] != ((tm->rx_serial + i) & 0xff))
+ {
+ clib_warning ("corrupt msg at offset %d", i);
+ dump_msg = 1;
+ break;
+ }
+ if (dump_msg)
+ clib_warning ("got %d bytes, %U", n_bytes, format_hex_bytes, p, n_bytes);
+ tm->rx_serial += n_bytes;
+}
+
+MC_SERIALIZE_MSG (test_msg, static) = {
+ .name = "test_msg",
+ .serialize = serialize_test_msg,
+ .unserialize = unserialize_test_msg,
+};
+
+#define SERIALIZE 1
+
+#define EVENT_JOIN_STREAM 10
+#define EVENT_SEND_DATA 11
+
+static void test_rx_callback (mc_main_t * mcm,
+ mc_stream_t * stream,
+ mc_peer_id_t peer_id,
+ u32 buffer_index)
+{
+ if (SERIALIZE)
+ {
+ return mc_unserialize (mcm, stream, buffer_index);
+ }
+ else
+ {
+#if DEBUG > 1
+ vlib_main_t * vm = mcm->vlib_main;
+ vlib_buffer_t * b = vlib_get_buffer (vm, buffer_index);
+ u8 * dp = vlib_buffer_get_current (b);
+
+ fformat(stdout, "RX from %U %U\n",
+ stream->transport->format_peer_id, peer_id,
+ format_hex_bytes, dp, tm->n_msg_bytes);
+
+#endif
+ }
+}
+
+static u8 *
+test_snapshot_callback (mc_main_t * mcm,
+ u8 * data_vector,
+ u32 last_global_sequence_processed)
+{
+ if (SERIALIZE)
+ {
+ serialize_main_t m;
+
+ /* Append serialized data to data vector. */
+ serialize_open_vector (&m, data_vector);
+ m.stream.current_buffer_index = vec_len (data_vector);
+
+ return serialize_close_vector (&m);
+ }
+ else
+ return format (data_vector,
+ "snapshot, last global seq 0x%x",
+ last_global_sequence_processed);
+}
+
+static void
+test_handle_snapshot_callback (mc_main_t * mcm,
+ u8 * data,
+ u32 n_data_bytes)
+{
+ if (SERIALIZE)
+ {
+ serialize_main_t s;
+ unserialize_open_data (&s, data, n_data_bytes);
+ }
+ else
+ clib_warning ("snapshot `%*s'", n_data_bytes, data);
+}
+
+static mc_socket_main_t mc_socket_main;
+
+static uword
+mc_test_process (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * f)
+{
+ mc_test_main_t * tm = &mc_test_main;
+ mc_socket_main_t * msm = &mc_socket_main;
+ mc_main_t *mcm = &msm->mc_main;
+ uword event_type, *event_data = 0;
+ u32 data_serial=0, stream_index;
+ f64 delay;
+ mc_stream_config_t config;
+ clib_error_t * error;
+ int i;
+ char *intfcs[] = { "eth1", "eth0", "ce" };
+
+ memset (&config, 0, sizeof (config));
+ config.name = "test";
+ config.window_size = tm->window_size;
+ config.rx_buffer = test_rx_callback;
+ config.catchup_snapshot = test_snapshot_callback;
+ config.catchup = test_handle_snapshot_callback;
+ stream_index = ~0;
+
+ msm->multicast_tx_ip4_address_host_byte_order = 0xefff0100;
+ msm->base_multicast_udp_port_host_byte_order = 0xffab;
+
+ error = mc_socket_main_init (&mc_socket_main, intfcs, ARRAY_LEN(intfcs));
+ if (error)
+ {
+ clib_error_report (error);
+ exit (1);
+ }
+
+ mcm->we_can_be_relay_master = 1;
+
+ while (1)
+ {
+ vlib_process_wait_for_event (vm);
+ event_type = vlib_process_get_events (vm, &event_data);
+
+ switch (event_type)
+ {
+ case EVENT_JOIN_STREAM:
+ stream_index = mc_stream_join (mcm, &config);
+ break;
+
+ case EVENT_SEND_DATA: {
+ f64 times[2];
+
+ if (stream_index == ~0)
+ stream_index = mc_stream_join (mcm, &config);
+
+ times[0] = vlib_time_now (vm);
+ for (i = 0; i < event_data[0]; i++)
+ {
+ u32 bi;
+ if (SERIALIZE)
+ {
+ mc_serialize_stream (mcm, stream_index, &test_msg, data_serial);
+ }
+ else
+ {
+ u8 * mp;
+ mp = mc_get_vlib_buffer (vm, sizeof (mp[0]), &bi);
+ mp[0] = data_serial;
+ mc_stream_send (mcm, stream_index, bi);
+ }
+ if (tm->min_delay > 0)
+ {
+ delay = tm->min_delay + random_f64 (&tm->seed) * (tm->max_delay - tm->min_delay);
+ vlib_process_suspend (vm, delay);
+ }
+ data_serial++;
+ }
+ times[1] = vlib_time_now (vm);
+ clib_warning ("done sending %d; %.4e per sec",
+ event_data[0],
+ (f64) event_data[0] / (times[1] - times[0]));
+ break;
+ }
+
+ default:
+ clib_warning ("bug");
+ break;
+ }
+
+ if (event_data)
+ _vec_len (event_data) = 0;
+ }
+}
+
+VLIB_REGISTER_NODE (mc_test_process_node,static) = {
+ .function = mc_test_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "mc-test-process",
+};
+
+static clib_error_t *
+mc_test_command (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ f64 npkts = 10;
+
+ if (unformat (input, "join"))
+ {
+ vlib_cli_output (vm, "Join stream...\n");
+ vlib_process_signal_event (vm, mc_test_process_node.index,
+ EVENT_JOIN_STREAM, 0);
+ return 0;
+ }
+ else if (unformat (input, "send %f", &npkts)
+ || unformat(input, "send"))
+ {
+ vlib_process_signal_event (vm, mc_test_process_node.index,
+ EVENT_SEND_DATA, (uword) npkts);
+ vlib_cli_output (vm, "Send %.0f pkts...\n", npkts);
+
+ return 0;
+ }
+ else
+ return unformat_parse_error (input);
+}
+
+VLIB_CLI_COMMAND (test_mc_command, static) = {
+ .path = "test mc",
+ .short_help = "Test mc command",
+ .function = mc_test_command,
+};
+
+static clib_error_t *
+mc_show_command (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ mc_main_t *mcm = &mc_socket_main.mc_main;
+ vlib_cli_output (vm, "%U", format_mc_main, mcm);
+ return 0;
+}
+
+VLIB_CLI_COMMAND (show_mc_command, static) = {
+ .path = "show mc",
+ .short_help = "Show mc command",
+ .function = mc_show_command,
+};
+
+static clib_error_t *
+mc_clear_command (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ mc_main_t * mcm = &mc_socket_main.mc_main;
+ mc_clear_stream_stats (mcm);
+ return 0;
+}
+
+VLIB_CLI_COMMAND (clear_mc_command, static) = {
+ .path = "clear mc",
+ .short_help = "Clear mc command",
+ .function = mc_clear_command,
+};
+
+static clib_error_t *
+mc_config (vlib_main_t * vm, unformat_input_t * input)
+{
+ mc_test_main_t * tm = &mc_test_main;
+ mc_socket_main_t * msm = &mc_socket_main;
+ clib_error_t * error = 0;
+
+ tm->min_n_msg_bytes = 4;
+ tm->max_n_msg_bytes = 4;
+ tm->window_size = 8;
+ tm->seed = getpid ();
+ tm->verbose = 0;
+ tm->validate = 1;
+ tm->min_delay = 10e-6;
+ tm->max_delay = 10e-3;
+ tm->n_packets_to_send = 0;
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "interface %s", &msm->multicast_interface_name))
+ ;
+
+ else if (unformat (input, "n-bytes %d", &tm->max_n_msg_bytes))
+ tm->min_n_msg_bytes = tm->max_n_msg_bytes;
+ else if (unformat (input, "max-n-bytes %d", &tm->max_n_msg_bytes))
+ ;
+ else if (unformat (input, "min-n-bytes %d", &tm->min_n_msg_bytes))
+ ;
+ else if (unformat (input, "seed %d", &tm->seed))
+ ;
+ else if (unformat (input, "window %d", &tm->window_size))
+ ;
+ else if (unformat (input, "verbose"))
+ tm->verbose = 1;
+ else if (unformat (input, "no-validate"))
+ tm->validate = 0;
+ else if (unformat (input, "min-delay %f", &tm->min_delay))
+ ;
+ else if (unformat (input, "max-delay %f", &tm->max_delay))
+ ;
+ else if (unformat (input, "no-delay"))
+ tm->min_delay = tm->max_delay = 0;
+ else if (unformat (input, "n-packets %f", &tm->n_packets_to_send))
+ ;
+
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+
+ if (tm->n_packets_to_send > 0)
+ vlib_process_signal_event (vm, mc_test_process_node.index,
+ EVENT_SEND_DATA, (uword) tm->n_packets_to_send);
+
+ return error;
+}
+
+VLIB_CONFIG_FUNCTION (mc_config, "mc");
diff --git a/vlib/example/plex_test.c b/vlib/example/plex_test.c
new file mode 100644
index 00000000000..947f25bc50b
--- /dev/null
+++ b/vlib/example/plex_test.c
@@ -0,0 +1,490 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/parse.h>
+#include <vlib/unix/unix.h>
+
+static u8 * format_value_v4_address (u8 * s, va_list * args)
+{
+ vlib_parse_value_t *v = va_arg (*args, vlib_parse_value_t *);
+ u32 a = v->value.as_uword;
+
+ s = format (s, "%d.%d.%d.%d",
+ (a>>24) & 0xFF,
+ (a>>16) & 0xFF,
+ (a>>8) & 0xFF,
+ (a>>0) & 0xFF);
+
+ return s;
+}
+
+static vlib_parse_match_t
+v4_address_match (vlib_parse_main_t *pm, vlib_parse_type_t *type,
+ vlib_lex_token_t *t, vlib_parse_value_t *valuep)
+{
+ u32 digit;
+ u32 value = 0;
+ int i;
+
+ if (vec_len (pm->tokens) - (t - pm->tokens) < 7)
+ return VLIB_PARSE_MATCH_FAIL;
+
+ /* NUMBER DOT NUMBER DOT NUMBER DOT NUMBER */
+
+ for (i = 0; i < 7; i++) {
+ if ((i & 1) == 0) {
+ if (t[i].token != VLIB_LEX_number)
+ return VLIB_PARSE_MATCH_FAIL;
+ if (t[i].value.as_uword > 0xff)
+ return VLIB_PARSE_MATCH_FAIL;
+ digit = t[i].value.as_uword;
+ value = (value << 8) | digit;
+ } else {
+ if (t[i].token != VLIB_LEX_dot)
+ return VLIB_PARSE_MATCH_FAIL;
+ }
+ }
+ /* note: caller advances by 1 */
+ pm->current_token_index += 6;
+ valuep->value.as_uword = value;
+ return VLIB_PARSE_MATCH_VALUE;
+}
+
+PARSE_TYPE_INIT (v4_address, v4_address_match, 0, format_value_v4_address)
+
+static u8 * format_value_v4_address_and_mask (u8 * s, va_list * args)
+{
+ vlib_parse_value_t *v = va_arg (*args, vlib_parse_value_t *);
+ u32 * a = v->value.as_pointer;
+
+ s = format (s, "%d.%d.%d.%d",
+ (a[0]>>24) & 0xFF,
+ (a[0]>>16) & 0xFF,
+ (a[0]>>8) & 0xFF,
+ (a[0]>>0) & 0xFF);
+ s = format (s, "/%d", a[1]);
+
+ return s;
+}
+
+static vlib_parse_match_t
+v4_address_and_mask_match (vlib_parse_main_t *pm, vlib_parse_type_t *type,
+ vlib_lex_token_t *t, vlib_parse_value_t *valuep)
+{
+ u32 digit;
+ u32 address = 0;
+ u32 *rv = 0;
+ int i;
+
+ if (vec_len (pm->tokens) - (t - pm->tokens) < 9)
+ return VLIB_PARSE_MATCH_FAIL;
+
+ /* NUMBER DOT NUMBER DOT NUMBER DOT NUMBER */
+
+ for (i = 0; i < 7; i++) {
+ if ((i & 1) == 0) {
+ if (t[i].token != VLIB_LEX_number)
+ return VLIB_PARSE_MATCH_FAIL;
+ if (t[i].value.as_uword > 0xff)
+ return VLIB_PARSE_MATCH_FAIL;
+ digit = t[i].value.as_uword;
+ address = (address << 8) | digit;
+ } else {
+ if (t[i].token != VLIB_LEX_dot)
+ return VLIB_PARSE_MATCH_FAIL;
+ }
+ }
+
+ if (t[7].token != VLIB_LEX_slash || t[8].token != VLIB_LEX_number)
+ return VLIB_PARSE_MATCH_FAIL;
+
+ vec_add1 (rv, address);
+ vec_add1 (rv, t[8].value.as_uword);
+
+ /* note: caller advances by 1 */
+ pm->current_token_index += 8;
+ valuep->value.as_pointer = rv;
+ return VLIB_PARSE_MATCH_VALUE;
+}
+
+void v4_address_and_mask_cleanup (vlib_parse_value_t *valuep)
+{
+ u32 * trash = valuep->value.as_pointer;
+ vec_free (trash);
+}
+
+PARSE_TYPE_INIT (v4_address_and_mask, v4_address_and_mask_match,
+ v4_address_and_mask_cleanup,
+ format_value_v4_address_and_mask)
+
+vlib_lex_main_t vlib_lex_main;
+
+
+
+vlib_parse_match_t eval_factor0 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ clib_warning ("%U", format_vlib_parse_value, pm);
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_factor1 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ clib_warning ("%U", format_vlib_parse_value, pm);
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_factor2 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ word a;
+ int index = vec_len (pm->parse_value)-1;
+
+ a = pm->parse_value [index].value.as_word;
+
+ pm->parse_value[index].value.as_word = -a;
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_term0 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ clib_warning ("%U", format_vlib_parse_value, pm);
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_term1 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ uword a, b;
+ int index = vec_len (pm->parse_value)-2;
+
+ a = pm->parse_value [index].value.as_uword;
+ b = pm->parse_value [index+1].value.as_uword;
+
+ pm->parse_value[index].value.as_uword = a * b;
+ _vec_len (pm->parse_value) -= 1;
+ clib_warning ("%U", format_vlib_parse_value, pm);
+
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_term2 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ uword a, b;
+ int index = vec_len (pm->parse_value)-2;
+
+ a = pm->parse_value [index].value.as_uword;
+ b = pm->parse_value [index+1].value.as_uword;
+
+ pm->parse_value[index].value.as_uword = a / b;
+ _vec_len (pm->parse_value) -= 1;
+ clib_warning ("%U", format_vlib_parse_value, pm);
+
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_exp0 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_exp1 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ uword a, b;
+ int index = vec_len (pm->parse_value)-2;
+
+ a = pm->parse_value [index].value.as_uword;
+ b = pm->parse_value [index+1].value.as_uword;
+
+ pm->parse_value[index].value.as_uword = a + b;
+ _vec_len (pm->parse_value) -= 1;
+ clib_warning ("%U", format_vlib_parse_value, pm);
+
+ return VLIB_PARSE_MATCH_RULE;
+}
+vlib_parse_match_t eval_exp2 (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ uword a, b;
+ int index = vec_len (pm->parse_value)-2;
+
+ a = pm->parse_value [index].value.as_uword;
+ b = pm->parse_value [index+1].value.as_uword;
+
+ pm->parse_value[index].value.as_uword = a - b;
+ _vec_len (pm->parse_value) -= 1;
+ clib_warning ("%U", format_vlib_parse_value, pm);
+
+ return VLIB_PARSE_MATCH_RULE;
+}
+
+vlib_parse_match_t eval_result (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ clib_warning ("%U", format_vlib_parse_value, pm);
+ return VLIB_PARSE_MATCH_DONE;
+}
+
+vlib_parse_match_t noop_match_rule (vlib_parse_main_t *pm,
+ vlib_parse_item_t *item,
+ vlib_parse_value_t *value)
+{
+ clib_warning ("%U", format_vlib_parse_value, pm);
+ return VLIB_PARSE_MATCH_RULE;
+}
+
+#if 0
+PARSE_INIT (t1, "moo", eval0);
+PARSE_INIT (t2, "moo cow mumble", eval1);
+PARSE_INIT (t3, "moo cow", eval2);
+PARSE_INIT (t4, "moo cow mumble grunch", eval3);
+#endif
+
+#if 0
+PARSE_INIT (r1, "eval <exp>", eval_result);
+
+PARSE_INIT (r2, "<exp> = <term><exp2>", eval_exp0);
+PARSE_INIT (r3, "<exp2> = <plus> <exp>", eval_exp1);
+PARSE_INIT (r4, "<exp2> = <minus> <exp>", eval_exp2);
+PARSE_INIT (r5, "<exp2> = ", noop_match_rule);
+PARSE_TYPE_INIT (exp, rule_match, 0, 0);
+PARSE_TYPE_INIT (exp2, rule_match, 0, 0);
+
+PARSE_INIT (r6, "<term> = <factor><term2>", eval_term0);
+PARSE_INIT (r7, "<term2> = <star> <term>", eval_term1);
+PARSE_INIT (r8, "<term2> = <slash> <term>", eval_term2);
+PARSE_INIT (r9, "<term2> = ", noop_match_rule);
+PARSE_TYPE_INIT (term, rule_match, 0, 0);
+PARSE_TYPE_INIT (term2, rule_match, 0, 0);
+
+PARSE_INIT (r11, "<factor> = <lpar> <exp> <rpar>", eval_factor1);
+PARSE_INIT (r10, "<factor> = <number>", eval_factor0);
+PARSE_INIT (r12, "<factor> = <minus> <factor>", eval_factor2);
+
+PARSE_TYPE_INIT (factor, rule_match, 0, 0);
+#endif
+
+PARSE_INIT (r1, "eval <exp>", eval_result);
+
+#if 1
+PARSE_INIT (r2, "<exp> = <term><exp2>", eval_exp0);
+PARSE_INIT (r3, "<exp2> = <plus> <exp>", eval_exp1);
+PARSE_INIT (r4, "<exp2> = <minus> <exp>", eval_exp2);
+PARSE_INIT (r5, "<exp2> = ", noop_match_rule);
+PARSE_TYPE_INIT (exp, rule_match, 0, 0);
+PARSE_TYPE_INIT (exp2, rule_match, 0, 0);
+
+PARSE_INIT (r6, "<term> = <factor><term2>", eval_term0);
+PARSE_INIT (r7, "<term2> = <star> <term>", eval_term1);
+PARSE_INIT (r8, "<term2> = <slash> <term>", eval_term2);
+PARSE_INIT (r9, "<term2> = ", noop_match_rule);
+PARSE_TYPE_INIT (term, rule_match, 0, 0);
+PARSE_TYPE_INIT (term2, rule_match, 0, 0);
+
+PARSE_INIT (r11, "<factor> = <lpar> <exp> <rpar>", eval_factor1);
+PARSE_INIT (r10, "<factor> = <number>", eval_factor0);
+PARSE_INIT (r12, "<factor> = <minus> <factor>", eval_factor2);
+
+PARSE_TYPE_INIT (factor, rule_match, 0, 0);
+#endif
+
+#if 0
+PARSE_TYPE_INIT (exp, rule_match, 0, 0);
+PARSE_INIT (r6, "<exp> = a b", eval_term0);
+PARSE_INIT (r7, "<exp> = c d", eval_term1);
+PARSE_INIT (r9, "<exp> = ", noop_match_rule);
+#endif
+
+#if 0
+#define foreach_rule_evaluator \
+_(0) \
+_(1) \
+_(2) \
+_(3)
+
+#define _(n) \
+vlib_parse_match_t eval##n (vlib_parse_main_t *pm, \
+ vlib_parse_item_t *item, \
+ vlib_parse_value_t *value) \
+{ \
+ clib_warning ("%U", format_vlib_parse_value, pm); \
+ return VLIB_PARSE_MATCH_DONE; \
+}
+foreach_rule_evaluator
+
+#undef _
+
+PARSE_INIT (r1, "eval <moo>", eval_result);
+
+PARSE_INIT (r2, "<moo> = cow", eval0);
+PARSE_INIT (r4, "<moo> = ", eval1);
+PARSE_TYPE_INIT (moo, rule_match, 0, 0);
+#endif
+
+
+clib_error_t *test_init (vlib_main_t *vm)
+{
+ clib_error_t *error;
+
+ if ((error = vlib_call_init_function (vm, parse_init)))
+ return error;
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (test_init);
+
+clib_error_t *
+vlib_stdlex_init (vlib_main_t * vm)
+{
+ vlib_lex_main_t * lm = &vlib_lex_main;
+ u16 top_index;
+ u16 slash_index, slash_star_index, slash_slash_index, slash_star_star_index;
+ u16 slash_token;
+ u16 word_index;
+ u16 zero_index, octal_index, decimal_index, hex_index, binary_index;
+
+ top_index = vlib_lex_add_table ("top");
+
+#define foreach_top_level_single_character_token \
+ _('(', lpar) \
+ _(')', rpar) \
+ _(';', semi) \
+ _('[', lbrack) \
+ _(']', rbrack) \
+ _('{', lcurly) \
+ _('}', rcurly) \
+ _('+', plus) \
+ _('-', minus) \
+ _('*', star) \
+ _('%', percent) \
+ _('@', atsign) \
+ _(',', comma) \
+ _('.', dot) \
+ _('?', qmark)
+
+#define _(c,t) \
+ vlib_lex_set_action_range(top_index,c,c,VLIB_LEX_RETURN,vlib_lex_add_token(lm, #t), top_index);
+ foreach_top_level_single_character_token;
+#undef _
+
+ /* Numbers */
+ zero_index = vlib_lex_add_table ("zero");
+ octal_index = vlib_lex_add_table ("octal");
+ decimal_index = vlib_lex_add_table ("decimal");
+ hex_index = vlib_lex_add_table ("hex");
+ binary_index = vlib_lex_add_table ("binary");
+
+ /* Support 0x 0b 0t and 0123 [octal] */
+ vlib_lex_set_action_range (top_index, '0', '0', VLIB_LEX_START_NUMBER, 10, zero_index);
+ vlib_lex_set_action_range (top_index, '1', '9', VLIB_LEX_START_NUMBER, 10, decimal_index);
+
+ vlib_lex_set_action_range (zero_index, 0, 0x7F, VLIB_LEX_RETURN_AND_RESCAN, VLIB_LEX_number, top_index);
+
+ vlib_lex_set_action_range (zero_index, 'x', 'x', VLIB_LEX_IGNORE, ~0, hex_index);
+ vlib_lex_set_action_range (zero_index, 'b', 'b', VLIB_LEX_IGNORE, ~0, binary_index);
+ vlib_lex_set_action_range (zero_index, 't', 't', VLIB_LEX_IGNORE, ~0, decimal_index);
+ vlib_lex_set_action_range (zero_index, '0', '7', VLIB_LEX_START_NUMBER, 8, octal_index);
+
+ /* Octal */
+ vlib_lex_set_action_range (octal_index, 0, 0x7f, VLIB_LEX_RETURN_AND_RESCAN,
+ VLIB_LEX_number, top_index);
+ vlib_lex_set_action_range (octal_index, '0', '7', VLIB_LEX_ADD_TO_NUMBER, 8,
+ octal_index);
+
+ /* Decimal */
+ vlib_lex_set_action_range (decimal_index, 0, 0x7f, VLIB_LEX_RETURN_AND_RESCAN,
+ VLIB_LEX_number, top_index);
+ vlib_lex_set_action_range (decimal_index, '0', '9', VLIB_LEX_ADD_TO_NUMBER, 10,
+ decimal_index);
+
+ /* Hex */
+ vlib_lex_set_action_range (hex_index, 0, 0x7f, VLIB_LEX_RETURN_AND_RESCAN,
+ VLIB_LEX_number, top_index);
+ vlib_lex_set_action_range (hex_index, '0', '9', VLIB_LEX_ADD_TO_NUMBER, 16,
+ hex_index);
+ vlib_lex_set_action_range (hex_index, 'a', 'f', VLIB_LEX_ADD_TO_NUMBER, 16,
+ hex_index);
+ vlib_lex_set_action_range (hex_index, 'A', 'F', VLIB_LEX_ADD_TO_NUMBER, 16,
+ hex_index);
+
+ /* Binary */
+ vlib_lex_set_action_range (binary_index, 0, 0x7f, VLIB_LEX_RETURN_AND_RESCAN,
+ VLIB_LEX_number, top_index);
+ vlib_lex_set_action_range (binary_index, '0', '1', VLIB_LEX_ADD_TO_NUMBER, 2,
+ binary_index);
+
+ /* c/c++ comment syntax is the worst... */
+
+ slash_index = vlib_lex_add_table ("slash");
+ slash_star_index = vlib_lex_add_table ("slash_star");
+ slash_star_star_index = vlib_lex_add_table ("slash_star_star");
+ slash_slash_index = vlib_lex_add_table ("slash_slash");
+ slash_token = vlib_lex_add_token (lm, "slash");
+
+ /* Top level: see a slash, ignore, go to slash table */
+ vlib_lex_set_action_range (top_index, '/', '/', VLIB_LEX_IGNORE, ~0, slash_index);
+
+ /* default for slash table: return SLASH, go to top table */
+ vlib_lex_set_action_range (slash_index, 1, 0x7F, VLIB_LEX_RETURN_AND_RESCAN, slash_token,
+ top_index);
+ /* see slash-slash, go to s-s table */
+ vlib_lex_set_action_range (slash_index, '/', '/', VLIB_LEX_IGNORE, ~0,
+ slash_slash_index);
+ /* see slash-star, go to s-* table */
+ vlib_lex_set_action_range (slash_index, '*', '*', VLIB_LEX_IGNORE, ~0,
+ slash_star_index);
+
+ /* EOL in s-s table, ignore, go to top table */
+ vlib_lex_set_action_range (slash_slash_index, '\n', '\n', VLIB_LEX_IGNORE, ~0,
+ top_index);
+
+ /* slash-star blah blah star */
+ vlib_lex_set_action_range (slash_star_index, '*', '*', VLIB_LEX_IGNORE, ~0,
+ slash_star_star_index);
+
+ /* slash star blah blah star slash */
+ vlib_lex_set_action_range (slash_star_star_index, '/', '/', VLIB_LEX_IGNORE, ~0,
+ top_index);
+
+ /* LT, =, GT */
+ vlib_lex_set_action_range (top_index, '<', '<', VLIB_LEX_RETURN, VLIB_LEX_lt, top_index);
+ vlib_lex_set_action_range (top_index, '=', '=', VLIB_LEX_RETURN, VLIB_LEX_equals,
+ top_index);
+ vlib_lex_set_action_range (top_index, '>', '>', VLIB_LEX_RETURN, VLIB_LEX_gt, top_index);
+
+ /* words, key and otherwise */
+ word_index = vlib_lex_add_table ("word");
+
+ vlib_lex_set_action_range (top_index, 'a', 'z', VLIB_LEX_ADD_TO_TOKEN, ~0, word_index);
+ vlib_lex_set_action_range (top_index, 'A', 'Z', VLIB_LEX_ADD_TO_TOKEN, ~0, word_index);
+
+ vlib_lex_set_action_range (word_index, 0, 0x7f, VLIB_LEX_KEYWORD_CHECK, ~0, top_index);
+
+ vlib_lex_set_action_range (word_index, 'a', 'z', VLIB_LEX_ADD_TO_TOKEN, ~0, word_index);
+ vlib_lex_set_action_range (word_index, 'A', 'Z', VLIB_LEX_ADD_TO_TOKEN, ~0, word_index);
+ vlib_lex_set_action_range (word_index, '_', '_', VLIB_LEX_ADD_TO_TOKEN, ~0, word_index);
+ vlib_lex_set_action_range (word_index, '0', '9', VLIB_LEX_ADD_TO_TOKEN, ~0, word_index);
+
+ return 0;
+}
+