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9#include <stdio.h>
10#include <stdlib.h>
11#include <unistd.h>
12#include <fcntl.h>
13#include <sys/socket.h>
14#include <netinet/in.h>
15#include <arpa/inet.h>
16#include <string.h>
17
18#include "utils.h"
19#include "tc_util.h"
20
21
22static void explain(void)
23{
24 fprintf(stderr,"Usage: dsmark indices INDICES [ default_index DEFAULT_INDEX ] [ set_tc_index ]\n");
25}
26
27
28static int dsmark_parse_opt(struct qdisc_util *qu, int argc, char **argv,
29 struct nlmsghdr *n, const char *dev)
30{
31 struct rtattr *tail;
32 __u16 ind;
33 char *end;
34 int dflt, set_tc_index;
35
36 ind = set_tc_index = 0;
37 dflt = -1;
38 while (argc > 0) {
39 if (!strcmp(*argv, "indices")) {
40 NEXT_ARG();
41 ind = strtoul(*argv, &end, 0);
42 if (*end) {
43 explain();
44 return -1;
45 }
46 } else if (!strcmp(*argv,"default_index") || !strcmp(*argv,
47 "default")) {
48 NEXT_ARG();
49 dflt = strtoul(*argv, &end, 0);
50 if (*end) {
51 explain();
52 return -1;
53 }
54 } else if (!strcmp(*argv,"set_tc_index")) {
55 set_tc_index = 1;
56 } else {
57 explain();
58 return -1;
59 }
60 argc--;
61 argv++;
62 }
63 if (!ind) {
64 explain();
65 return -1;
66 }
67 tail = addattr_nest(n, 1024, TCA_OPTIONS);
68 addattr_l(n, 1024, TCA_DSMARK_INDICES, &ind, sizeof(ind));
69 if (dflt != -1) {
70 __u16 tmp = dflt;
71
72 addattr_l(n, 1024, TCA_DSMARK_DEFAULT_INDEX, &tmp, sizeof(tmp));
73 }
74 if (set_tc_index)
75 addattr_l(n, 1024, TCA_DSMARK_SET_TC_INDEX, NULL, 0);
76 addattr_nest_end(n, tail);
77 return 0;
78}
79
80
81static void explain_class(void)
82{
83 fprintf(stderr, "Usage: ... dsmark [ mask MASK ] [ value VALUE ]\n");
84}
85
86
87static int dsmark_parse_class_opt(struct qdisc_util *qu, int argc, char **argv,
88 struct nlmsghdr *n, const char *dev)
89{
90 struct rtattr *tail;
91 __u8 tmp;
92 char *end;
93
94 tail = addattr_nest(n, 1024, TCA_OPTIONS);
95 while (argc > 0) {
96 if (!strcmp(*argv, "mask")) {
97 NEXT_ARG();
98 tmp = strtoul(*argv, &end, 0);
99 if (*end) {
100 explain_class();
101 return -1;
102 }
103 addattr_l(n, 1024, TCA_DSMARK_MASK, &tmp, 1);
104 } else if (!strcmp(*argv,"value")) {
105 NEXT_ARG();
106 tmp = strtoul(*argv, &end, 0);
107 if (*end) {
108 explain_class();
109 return -1;
110 }
111 addattr_l(n, 1024, TCA_DSMARK_VALUE, &tmp, 1);
112 } else {
113 explain_class();
114 return -1;
115 }
116 argc--;
117 argv++;
118 }
119 addattr_nest_end(n, tail);
120 return 0;
121}
122
123
124
125static int dsmark_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
126{
127 struct rtattr *tb[TCA_DSMARK_MAX+1];
128
129 if (!opt) return 0;
130 parse_rtattr(tb, TCA_DSMARK_MAX, RTA_DATA(opt), RTA_PAYLOAD(opt));
131 if (tb[TCA_DSMARK_MASK]) {
132 if (!RTA_PAYLOAD(tb[TCA_DSMARK_MASK]))
133 fprintf(stderr, "dsmark: empty mask\n");
134 else fprintf(f, "mask 0x%02x ",
135 rta_getattr_u8(tb[TCA_DSMARK_MASK]));
136 }
137 if (tb[TCA_DSMARK_VALUE]) {
138 if (!RTA_PAYLOAD(tb[TCA_DSMARK_VALUE]))
139 fprintf(stderr, "dsmark: empty value\n");
140 else fprintf(f, "value 0x%02x ",
141 rta_getattr_u8(tb[TCA_DSMARK_VALUE]));
142 }
143 if (tb[TCA_DSMARK_INDICES]) {
144 if (RTA_PAYLOAD(tb[TCA_DSMARK_INDICES]) < sizeof(__u16))
145 fprintf(stderr, "dsmark: indices too short\n");
146 else fprintf(f, "indices 0x%04x ",
147 rta_getattr_u16(tb[TCA_DSMARK_INDICES]));
148 }
149 if (tb[TCA_DSMARK_DEFAULT_INDEX]) {
150 if (RTA_PAYLOAD(tb[TCA_DSMARK_DEFAULT_INDEX]) < sizeof(__u16))
151 fprintf(stderr, "dsmark: default_index too short\n");
152 else fprintf(f, "default_index 0x%04x ",
153 rta_getattr_u16(tb[TCA_DSMARK_DEFAULT_INDEX]));
154 }
155 if (tb[TCA_DSMARK_SET_TC_INDEX]) fprintf(f, "set_tc_index ");
156 return 0;
157}
158
159
160struct qdisc_util dsmark_qdisc_util = {
161 .id = "dsmark",
162 .parse_qopt = dsmark_parse_opt,
163 .print_qopt = dsmark_print_opt,
164 .parse_copt = dsmark_parse_class_opt,
165 .print_copt = dsmark_print_opt,
166};
167
