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>
17 #include <sys/socket.h>
18 #include <netinet/in.h>
19 #include <arpa/inet.h>
27 static void explain(void)
30 "Usage: ... basic [ match EMATCH_TREE ]\n"
31 " [ action ACTION_SPEC ] [ classid CLASSID ]\n"
33 "Where: SELECTOR := SAMPLE SAMPLE ...\n"
34 " FILTERID := X:Y:Z\n"
35 " ACTION_SPEC := ... look at individual actions\n"
37 "NOTE: CLASSID is parsed as hexadecimal input.\n");
40 static int basic_parse_opt(struct filter_util
*qu
, char *handle
,
41 int argc
, char **argv
, struct nlmsghdr
*n
)
43 struct tcmsg
*t
= NLMSG_DATA(n
);
48 h
= strtol(handle
, NULL
, 0);
49 if (h
== LONG_MIN
|| h
== LONG_MAX
) {
50 fprintf(stderr
, "Illegal handle \"%s\", must be numeric.\n",
60 tail
= (struct rtattr
*)(((void *)n
)+NLMSG_ALIGN(n
->nlmsg_len
));
61 addattr_l(n
, MAX_MSG
, TCA_OPTIONS
, NULL
, 0);
64 if (matches(*argv
, "match") == 0) {
66 if (parse_ematch(&argc
, &argv
, TCA_BASIC_EMATCHES
, n
)) {
67 fprintf(stderr
, "Illegal \"ematch\"\n");
71 } else if (matches(*argv
, "classid") == 0 ||
72 strcmp(*argv
, "flowid") == 0) {
76 if (get_tc_classid(&handle
, *argv
)) {
77 fprintf(stderr
, "Illegal \"classid\"\n");
80 addattr_l(n
, MAX_MSG
, TCA_BASIC_CLASSID
, &handle
, 4);
81 } else if (matches(*argv
, "action") == 0) {
83 if (parse_action(&argc
, &argv
, TCA_BASIC_ACT
, n
)) {
84 fprintf(stderr
, "Illegal \"action\"\n");
89 } else if (matches(*argv
, "police") == 0) {
91 if (parse_police(&argc
, &argv
, TCA_BASIC_POLICE
, n
)) {
92 fprintf(stderr
, "Illegal \"police\"\n");
96 } else if (strcmp(*argv
, "help") == 0) {
100 fprintf(stderr
, "What is \"%s\"?\n", *argv
);
107 tail
->rta_len
= (((void *)n
)+n
->nlmsg_len
) - (void *)tail
;
111 static int basic_print_opt(struct filter_util
*qu
, FILE *f
,
112 struct rtattr
*opt
, __u32 handle
)
114 struct rtattr
*tb
[TCA_BASIC_MAX
+1];
119 parse_rtattr_nested(tb
, TCA_BASIC_MAX
, opt
);
122 fprintf(f
, "handle 0x%x ", handle
);
124 if (tb
[TCA_BASIC_CLASSID
]) {
126 fprintf(f
, "flowid %s ",
127 sprint_tc_classid(rta_getattr_u32(tb
[TCA_BASIC_CLASSID
]), b1
));
130 if (tb
[TCA_BASIC_EMATCHES
])
131 print_ematch(f
, tb
[TCA_BASIC_EMATCHES
]);
133 if (tb
[TCA_BASIC_POLICE
]) {
135 tc_print_police(f
, tb
[TCA_BASIC_POLICE
]);
138 if (tb
[TCA_BASIC_ACT
]) {
139 tc_print_action(f
, tb
[TCA_BASIC_ACT
], 0);
145 struct filter_util basic_filter_util
= {
147 .parse_fopt
= basic_parse_opt
,
148 .print_fopt
= basic_print_opt
,