4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Daniel Borkmann <daniel@iogearbox.net>
19 #include "tc_common.h"
21 static struct exec_util *exec_list;
24 static void usage(void)
27 "Usage: tc exec [ EXEC_TYPE ] [ help | OPTIONS ]\n"
29 "EXEC_TYPE := { bpf | etc. }\n"
30 "OPTIONS := ... try tc exec <desired EXEC_KIND> help\n");
33 static int parse_noeopt(struct exec_util *eu, int argc, char **argv)
36 fprintf(stderr, "Unknown exec \"%s\", hence option \"%s\" is unparsable\n",
44 static struct exec_util *get_exec_kind(const char *name)
50 for (eu = exec_list; eu; eu = eu->next)
51 if (strcmp(eu->id, name) == 0)
54 snprintf(buf, sizeof(buf), "%s/e_%s.so", get_tc_lib(), name);
55 dlh = dlopen(buf, RTLD_LAZY);
59 dlh = BODY = dlopen(NULL, RTLD_LAZY);
65 snprintf(buf, sizeof(buf), "%s_exec_util", name);
75 eu = calloc(1, sizeof(*eu));
77 strncpy(eu->id, name, sizeof(eu->id) - 1);
78 eu->parse_eopt = parse_noeopt;
85 int do_exec(int argc, char **argv)
88 char kind[FILTER_NAMESZ] = {};
91 fprintf(stderr, "No command given, try \"tc exec help\".\n");
95 if (matches(*argv, "help") == 0) {
100 strncpy(kind, *argv, sizeof(kind) - 1);
102 eu = get_exec_kind(kind);
107 return eu->parse_eopt(eu, argc, argv);