1 /* Shared library add-on to iptables to add MARK target support. */
8 #include <linux/netfilter_ipv6/ip6_tables.h>
9 /* For 64bit kernel / 32bit userspace */
10 #include "../include/linux/netfilter_ipv6/ip6t_MARK.h"
12 /* Function which prints out usage message. */
17 "MARK target v%s options:\n"
18 " --set-mark value Set nfmark value\n"
23 static struct option opts
[] = {
24 { .name
= "set-mark", .has_arg
= 1, .flag
= 0, .val
= '1' },
28 /* Initialize the target. */
30 init(struct ip6t_entry_target
*t
, unsigned int *nfcache
)
34 /* Function which parses command options; returns true if it
37 parse(int c
, char **argv
, int invert
, unsigned int *flags
,
38 const struct ip6t_entry
*entry
,
39 struct ip6t_entry_target
**target
)
41 struct ip6t_mark_target_info
*markinfo
42 = (struct ip6t_mark_target_info
*)(*target
)->data
;
46 #ifdef KERNEL_64_USERSPACE_32
47 if (string_to_number_ll(optarg
, 0, 0,
50 if (string_to_number_l(optarg
, 0, 0,
53 exit_error(PARAMETER_PROBLEM
, "Bad MARK value `%s'", optarg
);
55 exit_error(PARAMETER_PROBLEM
,
56 "MARK target: Can't specify --set-mark twice");
68 final_check(unsigned int flags
)
71 exit_error(PARAMETER_PROBLEM
,
72 "MARK target: Parameter --set-mark is required");
75 #ifdef KERNEL_64_USERSPACE_32
77 print_mark(unsigned long long mark
)
79 printf("0x%llx ", mark
);
83 print_mark(unsigned long mark
)
85 printf("0x%lx ", mark
);
89 /* Prints out the targinfo. */
91 print(const struct ip6t_ip6
*ip
,
92 const struct ip6t_entry_target
*target
,
95 const struct ip6t_mark_target_info
*markinfo
=
96 (const struct ip6t_mark_target_info
*)target
->data
;
99 print_mark(markinfo
->mark
);
102 /* Saves the union ipt_targinfo in parsable form to stdout. */
104 save(const struct ip6t_ip6
*ip
, const struct ip6t_entry_target
*target
)
106 const struct ip6t_mark_target_info
*markinfo
=
107 (const struct ip6t_mark_target_info
*)target
->data
;
109 printf("--set-mark ");
110 print_mark(markinfo
->mark
);
114 struct ip6tables_target mark
= {
116 .version
= IPTABLES_VERSION
,
117 .size
= IP6T_ALIGN(sizeof(struct ip6t_mark_target_info
)),
118 .userspacesize
= IP6T_ALIGN(sizeof(struct ip6t_mark_target_info
)),
122 .final_check
= &final_check
,
130 register_target6(&mark
);