344 lines
7.1 KiB
C
344 lines
7.1 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2017 Netronome Systems, Inc.
|
||
|
|
*
|
||
|
|
* This software is dual licensed under the GNU General License Version 2,
|
||
|
|
* June 1991 as shown in the file COPYING in the top-level directory of this
|
||
|
|
* source tree or the BSD 2-Clause License provided below. You have the
|
||
|
|
* option to license this software under the complete terms of either license.
|
||
|
|
*
|
||
|
|
* The BSD 2-Clause License:
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or
|
||
|
|
* without modification, are permitted provided that the following
|
||
|
|
* conditions are met:
|
||
|
|
*
|
||
|
|
* 1. Redistributions of source code must retain the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer.
|
||
|
|
*
|
||
|
|
* 2. Redistributions in binary form must reproduce the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer in the documentation and/or other materials
|
||
|
|
* provided with the distribution.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
* SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Author: Jakub Kicinski <kubakici@wp.pl> */
|
||
|
|
|
||
|
|
#include <bfd.h>
|
||
|
|
#include <ctype.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <getopt.h>
|
||
|
|
#include <linux/bpf.h>
|
||
|
|
#include <linux/version.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include <bpf.h>
|
||
|
|
|
||
|
|
#include "main.h"
|
||
|
|
|
||
|
|
const char *bin_name;
|
||
|
|
static int last_argc;
|
||
|
|
static char **last_argv;
|
||
|
|
static int (*last_do_help)(int argc, char **argv);
|
||
|
|
json_writer_t *json_wtr;
|
||
|
|
bool pretty_output;
|
||
|
|
bool json_output;
|
||
|
|
bool show_pinned;
|
||
|
|
struct pinned_obj_table prog_table;
|
||
|
|
struct pinned_obj_table map_table;
|
||
|
|
|
||
|
|
static void __noreturn clean_and_exit(int i)
|
||
|
|
{
|
||
|
|
if (json_output)
|
||
|
|
jsonw_destroy(&json_wtr);
|
||
|
|
|
||
|
|
exit(i);
|
||
|
|
}
|
||
|
|
|
||
|
|
void usage(void)
|
||
|
|
{
|
||
|
|
last_do_help(last_argc - 1, last_argv + 1);
|
||
|
|
|
||
|
|
clean_and_exit(-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int do_help(int argc, char **argv)
|
||
|
|
{
|
||
|
|
if (json_output) {
|
||
|
|
jsonw_null(json_wtr);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
fprintf(stderr,
|
||
|
|
"Usage: %s [OPTIONS] OBJECT { COMMAND | help }\n"
|
||
|
|
" %s batch file FILE\n"
|
||
|
|
" %s version\n"
|
||
|
|
"\n"
|
||
|
|
" OBJECT := { prog | map }\n"
|
||
|
|
" " HELP_SPEC_OPTIONS "\n"
|
||
|
|
"",
|
||
|
|
bin_name, bin_name, bin_name);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int do_version(int argc, char **argv)
|
||
|
|
{
|
||
|
|
unsigned int version[3];
|
||
|
|
|
||
|
|
version[0] = LINUX_VERSION_CODE >> 16;
|
||
|
|
version[1] = LINUX_VERSION_CODE >> 8 & 0xf;
|
||
|
|
version[2] = LINUX_VERSION_CODE & 0xf;
|
||
|
|
|
||
|
|
if (json_output) {
|
||
|
|
jsonw_start_object(json_wtr);
|
||
|
|
jsonw_name(json_wtr, "version");
|
||
|
|
jsonw_printf(json_wtr, "\"%u.%u.%u\"",
|
||
|
|
version[0], version[1], version[2]);
|
||
|
|
jsonw_end_object(json_wtr);
|
||
|
|
} else {
|
||
|
|
printf("%s v%u.%u.%u\n", bin_name,
|
||
|
|
version[0], version[1], version[2]);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int cmd_select(const struct cmd *cmds, int argc, char **argv,
|
||
|
|
int (*help)(int argc, char **argv))
|
||
|
|
{
|
||
|
|
unsigned int i;
|
||
|
|
|
||
|
|
last_argc = argc;
|
||
|
|
last_argv = argv;
|
||
|
|
last_do_help = help;
|
||
|
|
|
||
|
|
if (argc < 1 && cmds[0].func)
|
||
|
|
return cmds[0].func(argc, argv);
|
||
|
|
|
||
|
|
for (i = 0; cmds[i].func; i++)
|
||
|
|
if (is_prefix(*argv, cmds[i].cmd))
|
||
|
|
return cmds[i].func(argc - 1, argv + 1);
|
||
|
|
|
||
|
|
help(argc - 1, argv + 1);
|
||
|
|
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool is_prefix(const char *pfx, const char *str)
|
||
|
|
{
|
||
|
|
if (!pfx)
|
||
|
|
return false;
|
||
|
|
if (strlen(str) < strlen(pfx))
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return !memcmp(str, pfx, strlen(pfx));
|
||
|
|
}
|
||
|
|
|
||
|
|
void fprint_hex(FILE *f, void *arg, unsigned int n, const char *sep)
|
||
|
|
{
|
||
|
|
unsigned char *data = arg;
|
||
|
|
unsigned int i;
|
||
|
|
|
||
|
|
for (i = 0; i < n; i++) {
|
||
|
|
const char *pfx = "";
|
||
|
|
|
||
|
|
if (!i)
|
||
|
|
/* nothing */;
|
||
|
|
else if (!(i % 16))
|
||
|
|
fprintf(f, "\n");
|
||
|
|
else if (!(i % 8))
|
||
|
|
fprintf(f, " ");
|
||
|
|
else
|
||
|
|
pfx = sep;
|
||
|
|
|
||
|
|
fprintf(f, "%s%02hhx", i ? pfx : "", data[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int do_batch(int argc, char **argv);
|
||
|
|
|
||
|
|
static const struct cmd cmds[] = {
|
||
|
|
{ "help", do_help },
|
||
|
|
{ "batch", do_batch },
|
||
|
|
{ "prog", do_prog },
|
||
|
|
{ "map", do_map },
|
||
|
|
{ "version", do_version },
|
||
|
|
{ 0 }
|
||
|
|
};
|
||
|
|
|
||
|
|
static int do_batch(int argc, char **argv)
|
||
|
|
{
|
||
|
|
unsigned int lines = 0;
|
||
|
|
char *n_argv[4096];
|
||
|
|
char buf[65536];
|
||
|
|
int n_argc;
|
||
|
|
FILE *fp;
|
||
|
|
int err;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (argc < 2) {
|
||
|
|
p_err("too few parameters for batch");
|
||
|
|
return -1;
|
||
|
|
} else if (!is_prefix(*argv, "file")) {
|
||
|
|
p_err("expected 'file', got: %s", *argv);
|
||
|
|
return -1;
|
||
|
|
} else if (argc > 2) {
|
||
|
|
p_err("too many parameters for batch");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
NEXT_ARG();
|
||
|
|
|
||
|
|
fp = fopen(*argv, "r");
|
||
|
|
if (!fp) {
|
||
|
|
p_err("Can't open file (%s): %s", *argv, strerror(errno));
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (json_output)
|
||
|
|
jsonw_start_array(json_wtr);
|
||
|
|
while (fgets(buf, sizeof(buf), fp)) {
|
||
|
|
if (strlen(buf) == sizeof(buf) - 1) {
|
||
|
|
errno = E2BIG;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
n_argc = 0;
|
||
|
|
n_argv[n_argc] = strtok(buf, " \t\n");
|
||
|
|
|
||
|
|
while (n_argv[n_argc]) {
|
||
|
|
n_argc++;
|
||
|
|
if (n_argc == ARRAY_SIZE(n_argv)) {
|
||
|
|
p_err("line %d has too many arguments, skip",
|
||
|
|
lines);
|
||
|
|
n_argc = 0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
n_argv[n_argc] = strtok(NULL, " \t\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!n_argc)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
if (json_output) {
|
||
|
|
jsonw_start_object(json_wtr);
|
||
|
|
jsonw_name(json_wtr, "command");
|
||
|
|
jsonw_start_array(json_wtr);
|
||
|
|
for (i = 0; i < n_argc; i++)
|
||
|
|
jsonw_string(json_wtr, n_argv[i]);
|
||
|
|
jsonw_end_array(json_wtr);
|
||
|
|
jsonw_name(json_wtr, "output");
|
||
|
|
}
|
||
|
|
|
||
|
|
err = cmd_select(cmds, n_argc, n_argv, do_help);
|
||
|
|
|
||
|
|
if (json_output)
|
||
|
|
jsonw_end_object(json_wtr);
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
goto err_close;
|
||
|
|
|
||
|
|
lines++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (errno && errno != ENOENT) {
|
||
|
|
perror("reading batch file failed");
|
||
|
|
err = -1;
|
||
|
|
} else {
|
||
|
|
p_info("processed %d lines", lines);
|
||
|
|
err = 0;
|
||
|
|
}
|
||
|
|
err_close:
|
||
|
|
fclose(fp);
|
||
|
|
|
||
|
|
if (json_output)
|
||
|
|
jsonw_end_array(json_wtr);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
static const struct option options[] = {
|
||
|
|
{ "json", no_argument, NULL, 'j' },
|
||
|
|
{ "help", no_argument, NULL, 'h' },
|
||
|
|
{ "pretty", no_argument, NULL, 'p' },
|
||
|
|
{ "version", no_argument, NULL, 'V' },
|
||
|
|
{ "bpffs", no_argument, NULL, 'f' },
|
||
|
|
{ 0 }
|
||
|
|
};
|
||
|
|
int opt, ret;
|
||
|
|
|
||
|
|
last_do_help = do_help;
|
||
|
|
pretty_output = false;
|
||
|
|
json_output = false;
|
||
|
|
show_pinned = false;
|
||
|
|
bin_name = argv[0];
|
||
|
|
|
||
|
|
hash_init(prog_table.table);
|
||
|
|
hash_init(map_table.table);
|
||
|
|
|
||
|
|
opterr = 0;
|
||
|
|
while ((opt = getopt_long(argc, argv, "Vhpjf",
|
||
|
|
options, NULL)) >= 0) {
|
||
|
|
switch (opt) {
|
||
|
|
case 'V':
|
||
|
|
return do_version(argc, argv);
|
||
|
|
case 'h':
|
||
|
|
return do_help(argc, argv);
|
||
|
|
case 'p':
|
||
|
|
pretty_output = true;
|
||
|
|
/* fall through */
|
||
|
|
case 'j':
|
||
|
|
if (!json_output) {
|
||
|
|
json_wtr = jsonw_new(stdout);
|
||
|
|
if (!json_wtr) {
|
||
|
|
p_err("failed to create JSON writer");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
json_output = true;
|
||
|
|
}
|
||
|
|
jsonw_pretty(json_wtr, pretty_output);
|
||
|
|
break;
|
||
|
|
case 'f':
|
||
|
|
show_pinned = true;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
p_err("unrecognized option '%s'", argv[optind - 1]);
|
||
|
|
if (json_output)
|
||
|
|
clean_and_exit(-1);
|
||
|
|
else
|
||
|
|
usage();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
argc -= optind;
|
||
|
|
argv += optind;
|
||
|
|
if (argc < 0)
|
||
|
|
usage();
|
||
|
|
|
||
|
|
bfd_init();
|
||
|
|
|
||
|
|
ret = cmd_select(cmds, argc, argv, do_help);
|
||
|
|
|
||
|
|
if (json_output)
|
||
|
|
jsonw_destroy(&json_wtr);
|
||
|
|
|
||
|
|
if (show_pinned) {
|
||
|
|
delete_pinned_obj_table(&prog_table);
|
||
|
|
delete_pinned_obj_table(&map_table);
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|