a102f84540
move dnet to the correct place so that we use this --HG-- rename : ext/dnet/dnet/addr.h => ext/dnet/addr.h rename : ext/dnet/dnet/arp.h => ext/dnet/arp.h rename : ext/dnet/dnet/blob.h => ext/dnet/blob.h rename : ext/dnet/dnet/eth.h => ext/dnet/eth.h rename : ext/dnet/dnet/fw.h => ext/dnet/fw.h rename : ext/dnet/dnet/icmp.h => ext/dnet/icmp.h rename : ext/dnet/dnet/intf.h => ext/dnet/intf.h rename : ext/dnet/dnet/ip.h => ext/dnet/ip.h rename : ext/dnet/dnet/ip6.h => ext/dnet/ip6.h rename : ext/dnet/dnet/os.h => ext/dnet/os.h rename : ext/dnet/dnet/rand.h => ext/dnet/rand.h rename : ext/dnet/dnet/route.h => ext/dnet/route.h rename : ext/dnet/dnet/tcp.h => ext/dnet/tcp.h rename : ext/dnet/dnet/udp.h => ext/dnet/udp.h
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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* fw.h
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*
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* Network firewalling operations.
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*
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* Copyright (c) 2001 Dug Song <dugsong@monkey.org>
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*
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* $Id: fw.h,v 1.13 2002/12/14 04:02:36 dugsong Exp $
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*/
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#ifndef DNET_FW_H
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#define DNET_FW_H
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struct fw_rule {
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char fw_device[INTF_NAME_LEN]; /* interface name */
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uint8_t fw_op; /* operation */
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uint8_t fw_dir; /* direction */
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uint8_t fw_proto; /* IP protocol */
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struct addr fw_src; /* src address / net */
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struct addr fw_dst; /* dst address / net */
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uint16_t fw_sport[2]; /* range / ICMP type */
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uint16_t fw_dport[2]; /* range / ICMP code */
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};
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#define FW_OP_ALLOW 1
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#define FW_OP_BLOCK 2
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#define FW_DIR_IN 1
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#define FW_DIR_OUT 2
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#define fw_pack_rule(rule, dev, op, dir, p, s, d, sp1, sp2, dp1, dp2) \
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do { \
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strlcpy((rule)->fw_device, dev, sizeof((rule)->fw_device)); \
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(rule)->fw_op = op; (rule)->fw_dir = dir; \
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(rule)->fw_proto = p; \
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memmove(&(rule)->fw_src, &(s), sizeof((rule)->fw_src)); \
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memmove(&(rule)->fw_dst, &(d), sizeof((rule)->fw_dst)); \
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(rule)->fw_sport[0] = sp1; (rule)->fw_sport[1] = sp2; \
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(rule)->fw_dport[0] = dp1; (rule)->fw_dport[1] = dp2; \
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} while (0)
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typedef struct fw_handle fw_t;
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typedef int (*fw_handler)(const struct fw_rule *rule, void *arg);
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__BEGIN_DECLS
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fw_t *fw_open(void);
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int fw_add(fw_t *f, const struct fw_rule *rule);
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int fw_delete(fw_t *f, const struct fw_rule *rule);
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int fw_loop(fw_t *f, fw_handler callback, void *arg);
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fw_t *fw_close(fw_t *f);
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__END_DECLS
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#endif /* DNET_FW_H */
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