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 ]\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
, " ACTION_SPEC := ... look at individual actions\n");
36 fprintf(stderr
, "\nNOTE: CLASSID is parsed as hexadecimal input.\n");
39 static int basic_parse_opt(struct filter_util
*qu
, char *handle
,
40 int argc
, char **argv
, struct nlmsghdr
*n
)
42 struct tcmsg
*t
= NLMSG_DATA(n
);
47 h
= strtol(handle
, NULL
, 0);
48 if (h
== LONG_MIN
|| h
== LONG_MAX
) {
49 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) {
75 if (get_tc_classid(&handle
, *argv
)) {
76 fprintf(stderr
, "Illegal \"classid\"\n");
79 addattr_l(n
, MAX_MSG
, TCA_BASIC_CLASSID
, &handle
, 4);
80 } else if (matches(*argv
, "action") == 0) {
82 if (parse_action(&argc
, &argv
, TCA_BASIC_ACT
, n
)) {
83 fprintf(stderr
, "Illegal \"action\"\n");
88 } else if (matches(*argv
, "police") == 0) {
90 if (parse_police(&argc
, &argv
, TCA_BASIC_POLICE
, n
)) {
91 fprintf(stderr
, "Illegal \"police\"\n");
95 } else if (strcmp(*argv
, "help") == 0) {
99 fprintf(stderr
, "What is \"%s\"?\n", *argv
);
106 tail
->rta_len
= (((void *)n
)+n
->nlmsg_len
) - (void *)tail
;
110 static int basic_print_opt(struct filter_util
*qu
, FILE *f
,
111 struct rtattr
*opt
, __u32 handle
)
113 struct rtattr
*tb
[TCA_BASIC_MAX
+1];
118 parse_rtattr_nested(tb
, TCA_BASIC_MAX
, opt
);
121 fprintf(f
, "handle 0x%x ", handle
);
123 if (tb
[TCA_BASIC_CLASSID
]) {
125 fprintf(f
, "flowid %s ",
126 sprint_tc_classid(rta_getattr_u32(tb
[TCA_BASIC_CLASSID
]), b1
));
129 if (tb
[TCA_BASIC_EMATCHES
])
130 print_ematch(f
, tb
[TCA_BASIC_EMATCHES
]);
132 if (tb
[TCA_BASIC_POLICE
]) {
134 tc_print_police(f
, tb
[TCA_BASIC_POLICE
]);
137 if (tb
[TCA_BASIC_ACT
]) {
138 tc_print_action(f
, tb
[TCA_BASIC_ACT
], 0);
144 struct filter_util basic_filter_util
= {
146 .parse_fopt
= basic_parse_opt
,
147 .print_fopt
= basic_print_opt
,