2 * f_basic.c Basic Classifier
4 * This program is free software; you can distribute 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: Thomas Graf <tgraf@suug.ch>
18 #include <sys/socket.h>
19 #include <netinet/in.h>
20 #include <arpa/inet.h>
28 static void explain(void)
30 fprintf(stderr, "Usage: ... basic [ match EMATCH_TREE ] [ police POLICE_SPEC ]\n");
31 fprintf(stderr, " [ action ACTION_SPEC ] [ classid CLASSID ]\n");
32 fprintf(stderr, "\n");
33 fprintf(stderr, "Where: SELECTOR := SAMPLE SAMPLE ...\n");
34 fprintf(stderr, " FILTERID := X:Y:Z\n");
35 fprintf(stderr, "\nNOTE: CLASSID is parsed as hexadecimal input.\n");
38 static int basic_parse_opt(struct filter_util *qu, char *handle,
39 int argc, char **argv, struct nlmsghdr *n)
41 struct tcmsg *t = NLMSG_DATA(n);
49 h = strtol(handle, NULL, 0);
50 if (h == LONG_MIN || h == LONG_MAX) {
51 fprintf(stderr, "Illegal handle \"%s\", must be numeric.\n",
59 tail = (struct rtattr*)(((void*)n)+NLMSG_ALIGN(n->nlmsg_len));
60 addattr_l(n, MAX_MSG, TCA_OPTIONS, NULL, 0);
63 if (matches(*argv, "match") == 0) {
65 if (parse_ematch(&argc, &argv, TCA_BASIC_EMATCHES, n)) {
66 fprintf(stderr, "Illegal \"ematch\"\n");
70 } else if (matches(*argv, "classid") == 0 ||
71 strcmp(*argv, "flowid") == 0) {
74 if (get_tc_classid(&handle, *argv)) {
75 fprintf(stderr, "Illegal \"classid\"\n");
78 addattr_l(n, MAX_MSG, TCA_BASIC_CLASSID, &handle, 4);
79 } else if (matches(*argv, "action") == 0) {
81 if (parse_action(&argc, &argv, TCA_BASIC_ACT, n)) {
82 fprintf(stderr, "Illegal \"action\"\n");
87 } else if (matches(*argv, "police") == 0) {
89 if (parse_police(&argc, &argv, TCA_BASIC_POLICE, n)) {
90 fprintf(stderr, "Illegal \"police\"\n");
94 } else if (strcmp(*argv, "help") == 0) {
98 fprintf(stderr, "What is \"%s\"?\n", *argv);
105 tail->rta_len = (((void*)n)+n->nlmsg_len) - (void*)tail;
109 static int basic_print_opt(struct filter_util *qu, FILE *f,
110 struct rtattr *opt, __u32 handle)
112 struct rtattr *tb[TCA_BASIC_MAX+1];
117 parse_rtattr_nested(tb, TCA_BASIC_MAX, opt);
120 fprintf(f, "handle 0x%x ", handle);
122 if (tb[TCA_BASIC_CLASSID]) {
124 fprintf(f, "flowid %s ",
125 sprint_tc_classid(*(__u32*)RTA_DATA(tb[TCA_BASIC_CLASSID]), b1));
128 if (tb[TCA_BASIC_EMATCHES])
129 print_ematch(f, tb[TCA_BASIC_EMATCHES]);
131 if (tb[TCA_BASIC_POLICE]) {
133 tc_print_police(f, tb[TCA_BASIC_POLICE]);
136 if (tb[TCA_BASIC_ACT]) {
137 tc_print_action(f, tb[TCA_BASIC_ACT]);
143 struct filter_util basic_filter_util = {
145 .parse_fopt = basic_parse_opt,
146 .print_fopt = basic_print_opt,