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13#include <stdio.h>
14#include <stdlib.h>
15#include <unistd.h>
16#include <fcntl.h>
17#include <sys/socket.h>
18#include <netinet/in.h>
19#include <arpa/inet.h>
20#include <string.h>
21#include "utils.h"
22#include "tc_util.h"
23#include "m_pedit.h"
24
25static int
26parse_ip(int *argc_p, char ***argv_p,
27 struct m_pedit_sel *sel, struct m_pedit_key *tkey)
28{
29 int res = -1;
30 int argc = *argc_p;
31 char **argv = *argv_p;
32
33 if (argc < 2)
34 return -1;
35
36 tkey->htype = sel->extended ?
37 TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 :
38 TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK;
39
40 if (strcmp(*argv, "src") == 0) {
41 NEXT_ARG();
42 tkey->off = 12;
43 res = parse_cmd(&argc, &argv, 4, TIPV4, RU32, sel, tkey);
44 goto done;
45 }
46 if (strcmp(*argv, "dst") == 0) {
47 NEXT_ARG();
48 tkey->off = 16;
49 res = parse_cmd(&argc, &argv, 4, TIPV4, RU32, sel, tkey);
50 goto done;
51 }
52
53
54
55
56 if (strcmp(*argv, "tos") == 0 || matches(*argv, "dsfield") == 0) {
57 NEXT_ARG();
58 tkey->off = 1;
59 res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
60 goto done;
61 }
62 if (strcmp(*argv, "ihl") == 0) {
63 NEXT_ARG();
64 tkey->off = 0;
65 res = parse_cmd(&argc, &argv, 1, TU32, 0x0f, sel, tkey);
66 goto done;
67 }
68 if (strcmp(*argv, "ttl") == 0) {
69 NEXT_ARG();
70 tkey->off = 8;
71 res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
72 goto done;
73 }
74 if (strcmp(*argv, "protocol") == 0) {
75 NEXT_ARG();
76 tkey->off = 9;
77 res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
78 goto done;
79 }
80
81 if (matches(*argv, "precedence") == 0) {
82 NEXT_ARG();
83 tkey->off = 1;
84 res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
85 goto done;
86 }
87
88 if (strcmp(*argv, "nofrag") == 0) {
89 NEXT_ARG();
90 tkey->off = 6;
91 res = parse_cmd(&argc, &argv, 1, TU32, 0x3F, sel, tkey);
92 goto done;
93 }
94
95 if (strcmp(*argv, "firstfrag") == 0) {
96 NEXT_ARG();
97 tkey->off = 6;
98 res = parse_cmd(&argc, &argv, 1, TU32, 0x1F, sel, tkey);
99 goto done;
100 }
101 if (strcmp(*argv, "ce") == 0) {
102 NEXT_ARG();
103 tkey->off = 6;
104 res = parse_cmd(&argc, &argv, 1, TU32, 0x80, sel, tkey);
105 goto done;
106 }
107 if (strcmp(*argv, "df") == 0) {
108 NEXT_ARG();
109 tkey->off = 6;
110 res = parse_cmd(&argc, &argv, 1, TU32, 0x40, sel, tkey);
111 goto done;
112 }
113 if (strcmp(*argv, "mf") == 0) {
114 NEXT_ARG();
115 tkey->off = 6;
116 res = parse_cmd(&argc, &argv, 1, TU32, 0x20, sel, tkey);
117 goto done;
118 }
119
120 if (sel->extended)
121 return -1;
122
123
124
125
126 if (strcmp(*argv, "dport") == 0) {
127 NEXT_ARG();
128 tkey->off = 22;
129 res = parse_cmd(&argc, &argv, 2, TU32, RU16, sel, tkey);
130 goto done;
131 }
132 if (strcmp(*argv, "sport") == 0) {
133 NEXT_ARG();
134 tkey->off = 20;
135 res = parse_cmd(&argc, &argv, 2, TU32, RU16, sel, tkey);
136 goto done;
137 }
138 if (strcmp(*argv, "icmp_type") == 0) {
139 NEXT_ARG();
140 tkey->off = 20;
141 res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
142 goto done;
143 }
144 if (strcmp(*argv, "icmp_code") == 0) {
145 NEXT_ARG();
146 tkey->off = 20;
147 res = parse_cmd(&argc, &argv, 1, TU32, RU8, sel, tkey);
148 goto done;
149 }
150 return -1;
151
152done:
153 *argc_p = argc;
154 *argv_p = argv;
155 return res;
156}
157
158struct m_pedit_util p_pedit_ip = {
159 .id = "ip",
160 .parse_peopt = parse_ip,
161};
162