#include <limits.h>
#include <netinet/tcp.h>
#include <math.h>
+#include <vppinfra/macros.h>
/** ANSI escape code. */
#define ESC "\x1b"
/** Maximum depth into a byte stream from which to compile a Telnet
* protocol message. This is a safety measure. */
-#define UNIX_CLI_MAX_DEPTH_TELNET 24
+#define UNIX_CLI_MAX_DEPTH_TELNET 32
/** Maximum terminal width we will accept */
#define UNIX_CLI_MAX_TERMINAL_WIDTH 512
*/
u8 cursor_direction;
+ /** Macro tables for this session */
+ clib_macro_main_t macro_main;
} unix_cli_file_t;
/** Resets the pager buffer and other data.
/** List of new sessions */
unix_cli_new_session_t *new_sessions;
+
+ /** system default macro table */
+ clib_macro_main_t macro_main;
+
} unix_cli_main_t;
/** CLI global state */
static unix_cli_main_t unix_cli_main;
+/** Return the macro main / tables we should use for this session
+ */
+static clib_macro_main_t *
+get_macro_main (void)
+{
+ unix_cli_main_t *cm = &unix_cli_main;
+ vlib_main_t *vm = vlib_get_main ();
+ vlib_process_t *cp = vlib_get_current_process (vm);
+ unix_cli_file_t *cf;
+
+ if (pool_is_free_index (cm->cli_file_pool, cp->output_function_arg))
+ return (&cm->macro_main);
+
+ cf = pool_elt_at_index (cm->cli_file_pool, cp->output_function_arg);
+
+ return (&cf->macro_main);
+}
+
/**
* @brief Search for a byte sequence in the action list.
*
int rv __attribute__ ((unused)) = write (um->log_fd, lv, vec_len (lv));
}
+ /* Run the command through the macro processor */
+ if (vec_len (cf->current_command))
+ {
+ u8 *expanded;
+ vec_validate (cf->current_command, vec_len (cf->current_command));
+ cf->current_command[vec_len (cf->current_command) - 1] = 0;
+ /* The macro expander expects proper C-strings, not vectors */
+ expanded = (u8 *) clib_macro_eval (&cf->macro_main,
+ (i8 *) cf->current_command,
+ 1 /* complain */ ,
+ 0 /* level */ ,
+ 8 /* max_level */ );
+ /* Macro processor NULL terminates the return */
+ _vec_len (expanded) -= 1;
+ vec_reset_length (cf->current_command);
+ vec_append (cf->current_command, expanded);
+ vec_free (expanded);
+ }
+
/* Build an unformat structure around our command */
unformat_init_vector (&input, cf->current_command);
clib_file_del (fm, uf);
unix_cli_file_free (cf);
+ clib_macro_free (&cf->macro_main);
pool_put (cm->cli_file_pool, cf);
}
pool_get (cm->cli_file_pool, cf);
clib_memset (cf, 0, sizeof (*cf));
+ clib_macro_init (&cf->macro_main);
template.read_function = unix_cli_read_ready;
template.write_function = unix_cli_write_ready;
cf->clib_file_index = clib_file_add (fm, &template);
cf->output_vector = 0;
cf->input_vector = 0;
+ vec_validate (cf->current_command, 0);
+ _vec_len (cf->current_command) = 0;
vlib_start_process (vm, n->runtime_index);
};
/* *INDENT-ON* */
+static clib_error_t *
+echo_cmd (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ {
+ vlib_cli_output (vm, "");
+ return 0;
+ }
+
+ vlib_cli_output (vm, "%v", line_input->buffer);
+
+ unformat_free (line_input);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (cli_unix_echo_cmd, static) = {
+ .path = "echo",
+ .short_help = "echo <rest-of-line>",
+ .function = echo_cmd,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+define_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u8 *macro_name;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_macro_main_t *mm = get_macro_main ();
+ clib_error_t *error;
+
+ if (!unformat (input, "%s", ¯o_name))
+ return clib_error_return (0, "missing variable name...");
+
+ /* Remove white space */
+ (void) unformat (input, "");
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ {
+ error = clib_error_return (0, "missing value for '%s'...", macro_name);
+ vec_free (macro_name);
+ return error;
+ }
+ /* the macro expander expects c-strings, not vectors... */
+ vec_add1 (line_input->buffer, 0);
+ clib_macro_set_value (mm, (char *) macro_name, (char *) line_input->buffer);
+ vec_free (macro_name);
+ unformat_free (line_input);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (define_cmd, static) = {
+ .path = "define",
+ .short_help = "define <variable-name> <value>",
+ .function = define_cmd_fn,
+};
+
+/* *INDENT-ON* */
+
+static clib_error_t *
+undefine_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u8 *macro_name;
+ clib_macro_main_t *mm = get_macro_main ();
+
+ if (!unformat (input, "%s", ¯o_name))
+ return clib_error_return (0, "missing variable name...");
+
+ if (clib_macro_unset (mm, (char *) macro_name))
+ vlib_cli_output (vm, "%s wasn't set...", macro_name);
+
+ vec_free (macro_name);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (undefine_cmd, static) = {
+ .path = "undefine",
+ .short_help = "undefine <variable-name>",
+ .function = undefine_cmd_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+show_macro_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ clib_macro_main_t *mm = get_macro_main ();
+ int evaluate = 1;
+
+ if (unformat (input, "noevaluate %=", &evaluate, 0))
+ ;
+ else if (unformat (input, "noeval %=", &evaluate, 0))
+ ;
+
+ vlib_cli_output (vm, "%U", format_clib_macro_main, mm, evaluate);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_macro, static) = {
+ .path = "show macro",
+ .short_help = "show macro [noevaluate]",
+ .function = show_macro_cmd_fn,
+};
+/* *INDENT-ON* */
+
static clib_error_t *
unix_cli_init (vlib_main_t * vm)
{
/* Breadcrumb to indicate the new session process
* has not been started */
cm->new_session_process_node_index = ~0;
+ clib_macro_init (&cm->macro_main);
return 0;
}
Code Review / vpp.git / blobdiff