1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
Index: iptables-1.3.8/extensions/libipt_multiport.c
===================================================================
--- iptables-1.3.8.orig/extensions/libipt_multiport.c 2007-07-31 15:27:55.000000000 -0500
+++ iptables-1.3.8/extensions/libipt_multiport.c 2007-07-31 15:27:56.000000000 -0500
@@ -8,24 +8,6 @@
/* To ensure that iptables compiles with an old kernel */
#include "../include/linux/netfilter_ipv4/ipt_multiport.h"
-/* Function which prints out usage message. */
-static void
-help(void)
-{
- printf(
-"multiport v%s options:\n"
-" --source-ports port[,port,port...]\n"
-" --sports ...\n"
-" match source port(s)\n"
-" --destination-ports port[,port,port...]\n"
-" --dports ...\n"
-" match destination port(s)\n"
-" --ports port[,port,port]\n"
-" match both source and destination port(s)\n"
-" NOTE: this kernel does not support port ranges in multiport.\n",
-IPTABLES_VERSION);
-}
-
static void
help_v1(void)
{
@@ -70,26 +52,6 @@
}
}
-static unsigned int
-parse_multi_ports(const char *portstring, u_int16_t *ports, const char *proto)
-{
- char *buffer, *cp, *next;
- unsigned int i;
-
- buffer = strdup(portstring);
- if (!buffer) exit_error(OTHER_PROBLEM, "strdup failed");
-
- for (cp=buffer, i=0; cp && i<IPT_MULTI_PORTS; cp=next,i++)
- {
- next=strchr(cp, ',');
- if (next) *next++='\0';
- ports[i] = parse_port(cp, proto);
- }
- if (cp) exit_error(PARAMETER_PROBLEM, "too many ports specified");
- free(buffer);
- return i;
-}
-
static void
parse_multi_ports_v1(const char *portstring,
struct ipt_multiport_v1 *multiinfo,
@@ -156,58 +118,6 @@
"multiport only works with TCP, UDP, UDPLITE, SCTP and DCCP");
}
-/* Function which parses command options; returns true if it
- ate an option */
-static int
-parse(int c, char **argv, int invert, unsigned int *flags,
- const struct ipt_entry *entry,
- unsigned int *nfcache,
- struct ipt_entry_match **match)
-{
- const char *proto;
- struct ipt_multiport *multiinfo
- = (struct ipt_multiport *)(*match)->data;
-
- switch (c) {
- case '1':
- check_inverse(argv[optind-1], &invert, &optind, 0);
- proto = check_proto(entry);
- multiinfo->count = parse_multi_ports(argv[optind-1],
- multiinfo->ports, proto);
- multiinfo->flags = IPT_MULTIPORT_SOURCE;
- break;
-
- case '2':
- check_inverse(argv[optind-1], &invert, &optind, 0);
- proto = check_proto(entry);
- multiinfo->count = parse_multi_ports(argv[optind-1],
- multiinfo->ports, proto);
- multiinfo->flags = IPT_MULTIPORT_DESTINATION;
- break;
-
- case '3':
- check_inverse(argv[optind-1], &invert, &optind, 0);
- proto = check_proto(entry);
- multiinfo->count = parse_multi_ports(argv[optind-1],
- multiinfo->ports, proto);
- multiinfo->flags = IPT_MULTIPORT_EITHER;
- break;
-
- default:
- return 0;
- }
-
- if (invert)
- exit_error(PARAMETER_PROBLEM,
- "multiport does not support invert");
-
- if (*flags)
- exit_error(PARAMETER_PROBLEM,
- "multiport can only have one option");
- *flags = 1;
- return 1;
-}
-
static int
parse_v1(int c, char **argv, int invert, unsigned int *flags,
const struct ipt_entry *entry,
@@ -284,43 +194,6 @@
printf("%s", service);
}
-/* Prints out the matchinfo. */
-static void
-print(const struct ipt_ip *ip,
- const struct ipt_entry_match *match,
- int numeric)
-{
- const struct ipt_multiport *multiinfo
- = (const struct ipt_multiport *)match->data;
- unsigned int i;
-
- printf("multiport ");
-
- switch (multiinfo->flags) {
- case IPT_MULTIPORT_SOURCE:
- printf("sports ");
- break;
-
- case IPT_MULTIPORT_DESTINATION:
- printf("dports ");
- break;
-
- case IPT_MULTIPORT_EITHER:
- printf("ports ");
- break;
-
- default:
- printf("ERROR ");
- break;
- }
-
- for (i=0; i < multiinfo->count; i++) {
- printf("%s", i ? "," : "");
- print_port(multiinfo->ports[i], ip->proto, numeric);
- }
- printf(" ");
-}
-
static void
print_v1(const struct ipt_ip *ip,
const struct ipt_entry_match *match,
@@ -364,34 +237,6 @@
printf(" ");
}
-/* Saves the union ipt_matchinfo in parsable form to stdout. */
-static void save(const struct ipt_ip *ip, const struct ipt_entry_match *match)
-{
- const struct ipt_multiport *multiinfo
- = (const struct ipt_multiport *)match->data;
- unsigned int i;
-
- switch (multiinfo->flags) {
- case IPT_MULTIPORT_SOURCE:
- printf("--sports ");
- break;
-
- case IPT_MULTIPORT_DESTINATION:
- printf("--dports ");
- break;
-
- case IPT_MULTIPORT_EITHER:
- printf("--ports ");
- break;
- }
-
- for (i=0; i < multiinfo->count; i++) {
- printf("%s", i ? "," : "");
- print_port(multiinfo->ports[i], ip->proto, 1);
- }
- printf(" ");
-}
-
static void save_v1(const struct ipt_ip *ip,
const struct ipt_entry_match *match)
{
@@ -427,19 +272,20 @@
printf(" ");
}
+
static struct iptables_match multiport = {
.next = NULL,
.name = "multiport",
- .revision = 0,
.version = IPTABLES_VERSION,
- .size = IPT_ALIGN(sizeof(struct ipt_multiport)),
- .userspacesize = IPT_ALIGN(sizeof(struct ipt_multiport)),
- .help = &help,
+ .revision = 0,
+ .size = IPT_ALIGN(sizeof(struct ipt_multiport_v1)),
+ .userspacesize = IPT_ALIGN(sizeof(struct ipt_multiport_v1)),
+ .help = &help_v1,
.init = &init,
- .parse = &parse,
+ .parse = &parse_v1,
.final_check = &final_check,
- .print = &print,
- .save = &save,
+ .print = &print_v1,
+ .save = &save_v1,
.extra_opts = opts
};
|