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94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/*
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* m_pedit.h generic packet editor actions module
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*
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* This program is free software; you can distribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: J Hadi Salim (hadi@cyberus.ca)
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*
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*/
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#ifndef _ACT_PEDIT_H_
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#define _ACT_PEDIT_H_ 1
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <string.h>
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#include "utils.h"
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#include "tc_util.h"
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#include <linux/tc_act/tc_pedit.h>
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#define MAX_OFFS 128
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#define TIPV4 1
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#define TIPV6 2
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#define TINT 3
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#define TU32 4
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#define TMAC 5
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#define RU32 0xFFFFFFFF
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#define RU16 0xFFFF
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#define RU8 0xFF
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#define PEDITKINDSIZ 16
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struct m_pedit_key {
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__u32 mask; /* AND */
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__u32 val; /*XOR */
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__u32 off; /*offset */
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__u32 at;
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__u32 offmask;
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__u32 shift;
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enum pedit_header_type htype;
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enum pedit_cmd cmd;
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};
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struct m_pedit_key_ex {
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enum pedit_header_type htype;
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enum pedit_cmd cmd;
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};
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struct m_pedit_sel {
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struct tc_pedit_sel sel;
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struct tc_pedit_key keys[MAX_OFFS];
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struct m_pedit_key_ex keys_ex[MAX_OFFS];
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bool extended;
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};
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struct m_pedit_util {
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struct m_pedit_util *next;
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char id[PEDITKINDSIZ];
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int (*parse_peopt)(int *argc_p, char ***argv_p,
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struct m_pedit_sel *sel,
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struct m_pedit_key *tkey);
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};
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extern int pack_key(struct m_pedit_sel *sel, struct m_pedit_key *tkey);
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extern int pack_key32(__u32 retain, struct m_pedit_sel *sel,
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struct m_pedit_key *tkey);
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extern int pack_key16(__u32 retain, struct m_pedit_sel *sel,
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struct m_pedit_key *tkey);
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extern int pack_key8(__u32 retain, struct m_pedit_sel *sel,
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struct m_pedit_key *tkey);
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extern int parse_val(int *argc_p, char ***argv_p, __u32 *val, int type);
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extern int parse_cmd(int *argc_p, char ***argv_p, __u32 len, int type,
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__u32 retain,
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struct m_pedit_sel *sel, struct m_pedit_key *tkey);
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extern int parse_offset(int *argc_p, char ***argv_p,
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struct m_pedit_sel *sel, struct m_pedit_key *tkey);
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int parse_pedit(struct action_util *a, int *argc_p, char ***argv_p,
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int tca_id, struct nlmsghdr *n);
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extern int print_pedit(struct action_util *au, FILE *f, struct rtattr *arg);
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extern int pedit_print_xstats(struct action_util *au, FILE *f,
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struct rtattr *xstats);
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#endif
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