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-rw-r--r--ext/dnet/LICENSE28
-rw-r--r--ext/dnet/dnet/addr.h67
-rw-r--r--ext/dnet/dnet/arp.h103
-rw-r--r--ext/dnet/dnet/blob.h56
-rw-r--r--ext/dnet/dnet/eth.h77
-rw-r--r--ext/dnet/dnet/fw.h54
-rw-r--r--ext/dnet/dnet/icmp.h265
-rw-r--r--ext/dnet/dnet/intf.h68
-rw-r--r--ext/dnet/dnet/ip.h487
-rw-r--r--ext/dnet/dnet/ip6.h183
-rw-r--r--ext/dnet/dnet/os.h117
-rw-r--r--ext/dnet/dnet/rand.h33
-rw-r--r--ext/dnet/dnet/route.h35
-rw-r--r--ext/dnet/dnet/tcp.h158
-rw-r--r--ext/dnet/dnet/udp.h32
15 files changed, 1763 insertions, 0 deletions
diff --git a/ext/dnet/LICENSE b/ext/dnet/LICENSE
new file mode 100644
index 000000000..95ecd51e6
--- /dev/null
+++ b/ext/dnet/LICENSE
@@ -0,0 +1,28 @@
+
+ Copyright (c) 2000-2004 Dug Song <dugsong@monkey.org>
+ All rights reserved, all wrongs reversed.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. The names of the authors and copyright holders may not be used to
+ endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
diff --git a/ext/dnet/dnet/addr.h b/ext/dnet/dnet/addr.h
new file mode 100644
index 000000000..584e3aba3
--- /dev/null
+++ b/ext/dnet/dnet/addr.h
@@ -0,0 +1,67 @@
+/*
+ * addr.h
+ *
+ * Network address operations.
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: addr.h,v 1.12 2003/02/27 03:44:55 dugsong Exp $
+ */
+
+#ifndef DNET_ADDR_H
+#define DNET_ADDR_H
+
+#define ADDR_TYPE_NONE 0 /* No address set */
+#define ADDR_TYPE_ETH 1 /* Ethernet */
+#define ADDR_TYPE_IP 2 /* Internet Protocol v4 */
+#define ADDR_TYPE_IP6 3 /* Internet Protocol v6 */
+
+struct addr {
+ uint16_t addr_type;
+ uint16_t addr_bits;
+ union {
+ eth_addr_t __eth;
+ ip_addr_t __ip;
+ ip6_addr_t __ip6;
+
+ uint8_t __data8[16];
+ uint16_t __data16[8];
+ uint32_t __data32[4];
+ } __addr_u;
+};
+#define addr_eth __addr_u.__eth
+#define addr_ip __addr_u.__ip
+#define addr_ip6 __addr_u.__ip6
+#define addr_data8 __addr_u.__data8
+#define addr_data16 __addr_u.__data16
+#define addr_data32 __addr_u.__data32
+
+#define addr_pack(addr, type, bits, data, len) do { \
+ (addr)->addr_type = type; \
+ (addr)->addr_bits = bits; \
+ memmove((addr)->addr_data8, (char *)data, len); \
+} while (0)
+
+__BEGIN_DECLS
+int addr_cmp(const struct addr *a, const struct addr *b);
+
+int addr_bcast(const struct addr *a, struct addr *b);
+int addr_net(const struct addr *a, struct addr *b);
+
+char *addr_ntop(const struct addr *src, char *dst, size_t size);
+int addr_pton(const char *src, struct addr *dst);
+
+char *addr_ntoa(const struct addr *a);
+#define addr_aton addr_pton
+
+int addr_ntos(const struct addr *a, struct sockaddr *sa);
+int addr_ston(const struct sockaddr *sa, struct addr *a);
+
+int addr_btos(uint16_t bits, struct sockaddr *sa);
+int addr_stob(const struct sockaddr *sa, uint16_t *bits);
+
+int addr_btom(uint16_t bits, void *mask, size_t size);
+int addr_mtob(const void *mask, size_t size, uint16_t *bits);
+__END_DECLS
+
+#endif /* DNET_ADDR_H */
diff --git a/ext/dnet/dnet/arp.h b/ext/dnet/dnet/arp.h
new file mode 100644
index 000000000..d3c162410
--- /dev/null
+++ b/ext/dnet/dnet/arp.h
@@ -0,0 +1,103 @@
+/*
+ * arp.h
+ *
+ * Address Resolution Protocol.
+ * RFC 826
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: arp.h,v 1.12 2003/03/16 17:39:17 dugsong Exp $
+ */
+
+#ifndef DNET_ARP_H
+#define DNET_ARP_H
+
+#define ARP_HDR_LEN 8 /* base ARP header length */
+#define ARP_ETHIP_LEN 20 /* base ARP message length */
+
+#ifndef __GNUC__
+# define __attribute__(x)
+# pragma pack(1)
+#endif
+
+/*
+ * ARP header
+ */
+struct arp_hdr {
+ uint16_t ar_hrd; /* format of hardware address */
+ uint16_t ar_pro; /* format of protocol address */
+ uint8_t ar_hln; /* length of hardware address (ETH_ADDR_LEN) */
+ uint8_t ar_pln; /* length of protocol address (IP_ADDR_LEN) */
+ uint16_t ar_op; /* operation */
+};
+
+/*
+ * Hardware address format
+ */
+#define ARP_HRD_ETH 0x0001 /* ethernet hardware */
+#define ARP_HRD_IEEE802 0x0006 /* IEEE 802 hardware */
+
+/*
+ * Protocol address format
+ */
+#define ARP_PRO_IP 0x0800 /* IP protocol */
+
+/*
+ * ARP operation
+ */
+#define ARP_OP_REQUEST 1 /* request to resolve ha given pa */
+#define ARP_OP_REPLY 2 /* response giving hardware address */
+#define ARP_OP_REVREQUEST 3 /* request to resolve pa given ha */
+#define ARP_OP_REVREPLY 4 /* response giving protocol address */
+
+/*
+ * Ethernet/IP ARP message
+ */
+struct arp_ethip {
+ uint8_t ar_sha[ETH_ADDR_LEN]; /* sender hardware address */
+ uint8_t ar_spa[IP_ADDR_LEN]; /* sender protocol address */
+ uint8_t ar_tha[ETH_ADDR_LEN]; /* target hardware address */
+ uint8_t ar_tpa[IP_ADDR_LEN]; /* target protocol address */
+};
+
+/*
+ * ARP cache entry
+ */
+struct arp_entry {
+ struct addr arp_pa; /* protocol address */
+ struct addr arp_ha; /* hardware address */
+};
+
+#ifndef __GNUC__
+# pragma pack()
+#endif
+
+#define arp_pack_hdr_ethip(hdr, op, sha, spa, tha, tpa) do { \
+ struct arp_hdr *pack_arp_p = (struct arp_hdr *)(hdr); \
+ struct arp_ethip *pack_ethip_p = (struct arp_ethip *) \
+ ((uint8_t *)(hdr) + ARP_HDR_LEN); \
+ pack_arp_p->ar_hrd = htons(ARP_HRD_ETH); \
+ pack_arp_p->ar_pro = htons(ARP_PRO_IP); \
+ pack_arp_p->ar_hln = ETH_ADDR_LEN; \
+ pack_arp_p->ar_pln = IP_ADDR_LEN; \
+ pack_arp_p->ar_op = htons(op); \
+ memmove(pack_ethip_p->ar_sha, &(sha), ETH_ADDR_LEN); \
+ memmove(pack_ethip_p->ar_spa, &(spa), IP_ADDR_LEN); \
+ memmove(pack_ethip_p->ar_tha, &(tha), ETH_ADDR_LEN); \
+ memmove(pack_ethip_p->ar_tpa, &(tpa), IP_ADDR_LEN); \
+} while (0)
+
+typedef struct arp_handle arp_t;
+
+typedef int (*arp_handler)(const struct arp_entry *entry, void *arg);
+
+__BEGIN_DECLS
+arp_t *arp_open(void);
+int arp_add(arp_t *arp, const struct arp_entry *entry);
+int arp_delete(arp_t *arp, const struct arp_entry *entry);
+int arp_get(arp_t *arp, struct arp_entry *entry);
+int arp_loop(arp_t *arp, arp_handler callback, void *arg);
+arp_t *arp_close(arp_t *arp);
+__END_DECLS
+
+#endif /* DNET_ARP_H */
diff --git a/ext/dnet/dnet/blob.h b/ext/dnet/dnet/blob.h
new file mode 100644
index 000000000..a3be7897d
--- /dev/null
+++ b/ext/dnet/dnet/blob.h
@@ -0,0 +1,56 @@
+/*
+ * blob.h
+ *
+ * Binary blob handling.
+ *
+ * Copyright (c) 2002 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: blob.h,v 1.2 2002/04/05 03:06:44 dugsong Exp $
+ */
+
+#ifndef DNET_BLOB_H
+#define DNET_BLOB_H
+
+typedef struct blob {
+ u_char *base; /* start of data */
+ int off; /* offset into data */
+ int end; /* end of data */
+ int size; /* size of allocation */
+} blob_t;
+
+__BEGIN_DECLS
+blob_t *blob_new(void);
+
+int blob_read(blob_t *b, void *buf, int len);
+int blob_write(blob_t *b, const void *buf, int len);
+
+int blob_seek(blob_t *b, int off, int whence);
+#define blob_skip(b, l) blob_seek(b, l, SEEK_CUR)
+#define blob_rewind(b) blob_seek(b, 0, SEEK_SET)
+
+#define blob_offset(b) ((b)->off)
+#define blob_left(b) ((b)->end - (b)->off)
+
+int blob_index(blob_t *b, const void *buf, int len);
+int blob_rindex(blob_t *b, const void *buf, int len);
+
+int blob_pack(blob_t *b, const char *fmt, ...);
+int blob_unpack(blob_t *b, const char *fmt, ...);
+
+int blob_insert(blob_t *b, const void *buf, int len);
+int blob_delete(blob_t *b, void *buf, int len);
+
+int blob_print(blob_t *b, char *style, int len);
+
+blob_t *blob_free(blob_t *b);
+
+int blob_register_alloc(size_t size, void *(*bmalloc)(size_t),
+ void (*bfree)(void *), void *(*brealloc)(void *, size_t));
+#ifdef va_start
+typedef int (*blob_fmt_cb)(int pack, int len, blob_t *b, va_list *arg);
+
+int blob_register_pack(char c, blob_fmt_cb fmt_cb);
+#endif
+__END_DECLS
+
+#endif /* DNET_BLOB_H */
diff --git a/ext/dnet/dnet/eth.h b/ext/dnet/dnet/eth.h
new file mode 100644
index 000000000..da3033066
--- /dev/null
+++ b/ext/dnet/dnet/eth.h
@@ -0,0 +1,77 @@
+/*
+ * eth.h
+ *
+ * Ethernet.
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: eth.h,v 1.15 2004/01/03 08:47:23 dugsong Exp $
+ */
+
+#ifndef DNET_ETH_H
+#define DNET_ETH_H
+
+#define ETH_ADDR_LEN 6
+#define ETH_ADDR_BITS 48
+#define ETH_TYPE_LEN 2
+#define ETH_CRC_LEN 4
+#define ETH_HDR_LEN 14
+
+#define ETH_LEN_MIN 64 /* minimum frame length with CRC */
+#define ETH_LEN_MAX 1518 /* maximum frame length with CRC */
+
+#define ETH_MTU (ETH_LEN_MAX - ETH_HDR_LEN - ETH_CRC_LEN)
+#define ETH_MIN (ETH_LEN_MIN - ETH_HDR_LEN - ETH_CRC_LEN)
+
+typedef struct eth_addr {
+ uint8_t data[ETH_ADDR_LEN];
+} eth_addr_t;
+
+struct eth_hdr {
+ eth_addr_t eth_dst; /* destination address */
+ eth_addr_t eth_src; /* source address */
+ uint16_t eth_type; /* payload type */
+};
+
+/*
+ * Ethernet payload types - http://standards.ieee.org/regauth/ethertype
+ */
+#define ETH_TYPE_PUP 0x0200 /* PUP protocol */
+#define ETH_TYPE_IP 0x0800 /* IP protocol */
+#define ETH_TYPE_ARP 0x0806 /* address resolution protocol */
+#define ETH_TYPE_REVARP 0x8035 /* reverse addr resolution protocol */
+#define ETH_TYPE_8021Q 0x8100 /* IEEE 802.1Q VLAN tagging */
+#define ETH_TYPE_IPV6 0x86DD /* IPv6 protocol */
+#define ETH_TYPE_MPLS 0x8847 /* MPLS */
+#define ETH_TYPE_MPLS_MCAST 0x8848 /* MPLS Multicast */
+#define ETH_TYPE_PPPOEDISC 0x8863 /* PPP Over Ethernet Discovery Stage */
+#define ETH_TYPE_PPPOE 0x8864 /* PPP Over Ethernet Session Stage */
+#define ETH_TYPE_LOOPBACK 0x9000 /* used to test interfaces */
+
+#define ETH_IS_MULTICAST(ea) (*(ea) & 0x01) /* is address mcast/bcast? */
+
+#define ETH_ADDR_BROADCAST "\xff\xff\xff\xff\xff\xff"
+
+#define eth_pack_hdr(h, dst, src, type) do { \
+ struct eth_hdr *eth_pack_p = (struct eth_hdr *)(h); \
+ memmove(&eth_pack_p->eth_dst, &(dst), ETH_ADDR_LEN); \
+ memmove(&eth_pack_p->eth_src, &(src), ETH_ADDR_LEN); \
+ eth_pack_p->eth_type = htons(type); \
+} while (0)
+
+typedef struct eth_handle eth_t;
+
+__BEGIN_DECLS
+eth_t *eth_open(const char *device);
+int eth_get(eth_t *e, eth_addr_t *ea);
+int eth_set(eth_t *e, const eth_addr_t *ea);
+size_t eth_send(eth_t *e, const void *buf, size_t len);
+eth_t *eth_close(eth_t *e);
+
+char *eth_ntop(const eth_addr_t *eth, char *dst, size_t len);
+int eth_pton(const char *src, eth_addr_t *dst);
+char *eth_ntoa(const eth_addr_t *eth);
+#define eth_aton eth_pton
+__END_DECLS
+
+#endif /* DNET_ETH_H */
diff --git a/ext/dnet/dnet/fw.h b/ext/dnet/dnet/fw.h
new file mode 100644
index 000000000..ebda8e7eb
--- /dev/null
+++ b/ext/dnet/dnet/fw.h
@@ -0,0 +1,54 @@
+/*
+ * fw.h
+ *
+ * Network firewalling operations.
+ *
+ * Copyright (c) 2001 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: fw.h,v 1.13 2002/12/14 04:02:36 dugsong Exp $
+ */
+
+#ifndef DNET_FW_H
+#define DNET_FW_H
+
+struct fw_rule {
+ char fw_device[INTF_NAME_LEN]; /* interface name */
+ uint8_t fw_op; /* operation */
+ uint8_t fw_dir; /* direction */
+ uint8_t fw_proto; /* IP protocol */
+ struct addr fw_src; /* src address / net */
+ struct addr fw_dst; /* dst address / net */
+ uint16_t fw_sport[2]; /* range / ICMP type */
+ uint16_t fw_dport[2]; /* range / ICMP code */
+};
+
+#define FW_OP_ALLOW 1
+#define FW_OP_BLOCK 2
+
+#define FW_DIR_IN 1
+#define FW_DIR_OUT 2
+
+#define fw_pack_rule(rule, dev, op, dir, p, s, d, sp1, sp2, dp1, dp2) \
+do { \
+ strlcpy((rule)->fw_device, dev, sizeof((rule)->fw_device)); \
+ (rule)->fw_op = op; (rule)->fw_dir = dir; \
+ (rule)->fw_proto = p; \
+ memmove(&(rule)->fw_src, &(s), sizeof((rule)->fw_src)); \
+ memmove(&(rule)->fw_dst, &(d), sizeof((rule)->fw_dst)); \
+ (rule)->fw_sport[0] = sp1; (rule)->fw_sport[1] = sp2; \
+ (rule)->fw_dport[0] = dp1; (rule)->fw_dport[1] = dp2; \
+} while (0)
+
+typedef struct fw_handle fw_t;
+
+typedef int (*fw_handler)(const struct fw_rule *rule, void *arg);
+
+__BEGIN_DECLS
+fw_t *fw_open(void);
+int fw_add(fw_t *f, const struct fw_rule *rule);
+int fw_delete(fw_t *f, const struct fw_rule *rule);
+int fw_loop(fw_t *f, fw_handler callback, void *arg);
+fw_t *fw_close(fw_t *f);
+__END_DECLS
+
+#endif /* DNET_FW_H */
diff --git a/ext/dnet/dnet/icmp.h b/ext/dnet/dnet/icmp.h
new file mode 100644
index 000000000..e997d5887
--- /dev/null
+++ b/ext/dnet/dnet/icmp.h
@@ -0,0 +1,265 @@
+/*
+ * icmp.h
+ *
+ * Internet Control Message Protocol.
+ * RFC 792, 950, 1256, 1393, 1475, 2002, 2521
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: icmp.h,v 1.14 2003/03/16 17:39:17 dugsong Exp $
+ */
+
+#ifndef DNET_ICMP_H
+#define DNET_ICMP_H
+
+#define ICMP_HDR_LEN 4 /* base ICMP header length */
+#define ICMP_LEN_MIN 8 /* minimum ICMP message size, with header */
+
+#ifndef __GNUC__
+# define __attribute__(x)
+# pragma pack(1)
+#endif
+
+/*
+ * ICMP header
+ */
+struct icmp_hdr {
+ uint8_t icmp_type; /* type of message, see below */
+ uint8_t icmp_code; /* type sub code */
+ uint16_t icmp_cksum; /* ones complement cksum of struct */
+};
+
+/*
+ * Types (icmp_type) and codes (icmp_code) -
+ * http://www.iana.org/assignments/icmp-parameters
+ */
+#define ICMP_CODE_NONE 0 /* for types without codes */
+#define ICMP_ECHOREPLY 0 /* echo reply */
+#define ICMP_UNREACH 3 /* dest unreachable, codes: */
+#define ICMP_UNREACH_NET 0 /* bad net */
+#define ICMP_UNREACH_HOST 1 /* bad host */
+#define ICMP_UNREACH_PROTO 2 /* bad protocol */
+#define ICMP_UNREACH_PORT 3 /* bad port */
+#define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
+#define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
+#define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
+#define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
+#define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
+#define ICMP_UNREACH_NET_PROHIB 9 /* for crypto devs */
+#define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
+#define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
+#define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
+#define ICMP_UNREACH_FILTER_PROHIB 13 /* prohibited access */
+#define ICMP_UNREACH_HOST_PRECEDENCE 14 /* precedence error */
+#define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 /* precedence cutoff */
+#define ICMP_SRCQUENCH 4 /* packet lost, slow down */
+#define ICMP_REDIRECT 5 /* shorter route, codes: */
+#define ICMP_REDIRECT_NET 0 /* for network */
+#define ICMP_REDIRECT_HOST 1 /* for host */
+#define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
+#define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
+#define ICMP_ALTHOSTADDR 6 /* alternate host address */
+#define ICMP_ECHO 8 /* echo service */
+#define ICMP_RTRADVERT 9 /* router advertise, codes: */
+#define ICMP_RTRADVERT_NORMAL 0 /* normal */
+#define ICMP_RTRADVERT_NOROUTE_COMMON 16 /* selective routing */
+#define ICMP_RTRSOLICIT 10 /* router solicitation */
+#define ICMP_TIMEXCEED 11 /* time exceeded, code: */
+#define ICMP_TIMEXCEED_INTRANS 0 /* ttl==0 in transit */
+#define ICMP_TIMEXCEED_REASS 1 /* ttl==0 in reass */
+#define ICMP_PARAMPROB 12 /* ip header bad */
+#define ICMP_PARAMPROB_ERRATPTR 0 /* req. opt. absent */
+#define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
+#define ICMP_PARAMPROB_LENGTH 2 /* bad length */
+#define ICMP_TSTAMP 13 /* timestamp request */
+#define ICMP_TSTAMPREPLY 14 /* timestamp reply */
+#define ICMP_INFO 15 /* information request */
+#define ICMP_INFOREPLY 16 /* information reply */
+#define ICMP_MASK 17 /* address mask request */
+#define ICMP_MASKREPLY 18 /* address mask reply */
+#define ICMP_TRACEROUTE 30 /* traceroute */
+#define ICMP_DATACONVERR 31 /* data conversion error */
+#define ICMP_MOBILE_REDIRECT 32 /* mobile host redirect */
+#define ICMP_IPV6_WHEREAREYOU 33 /* IPv6 where-are-you */
+#define ICMP_IPV6_IAMHERE 34 /* IPv6 i-am-here */
+#define ICMP_MOBILE_REG 35 /* mobile registration req */
+#define ICMP_MOBILE_REGREPLY 36 /* mobile registration reply */
+#define ICMP_DNS 37 /* domain name request */
+#define ICMP_DNSREPLY 38 /* domain name reply */
+#define ICMP_SKIP 39 /* SKIP */
+#define ICMP_PHOTURIS 40 /* Photuris */
+#define ICMP_PHOTURIS_UNKNOWN_INDEX 0 /* unknown sec index */
+#define ICMP_PHOTURIS_AUTH_FAILED 1 /* auth failed */
+#define ICMP_PHOTURIS_DECOMPRESS_FAILED 2 /* decompress failed */
+#define ICMP_PHOTURIS_DECRYPT_FAILED 3 /* decrypt failed */
+#define ICMP_PHOTURIS_NEED_AUTHN 4 /* no authentication */
+#define ICMP_PHOTURIS_NEED_AUTHZ 5 /* no authorization */
+#define ICMP_TYPE_MAX 40
+
+#define ICMP_INFOTYPE(type) \
+ ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
+ (type) == ICMP_RTRADVERT || (type) == ICMP_RTRSOLICIT || \
+ (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
+ (type) == ICMP_INFO || (type) == ICMP_INFOREPLY || \
+ (type) == ICMP_MASK || (type) == ICMP_MASKREPLY)
+
+/*
+ * Echo message data
+ */
+struct icmp_msg_echo {
+ uint16_t icmp_id;
+ uint16_t icmp_seq;
+ uint8_t icmp_data __flexarr; /* optional data */
+};
+
+/*
+ * Fragmentation-needed (unreachable) message data
+ */
+struct icmp_msg_needfrag {
+ uint16_t icmp_void; /* must be zero */
+ uint16_t icmp_mtu; /* MTU of next-hop network */
+ uint8_t icmp_ip __flexarr; /* IP hdr + 8 bytes of pkt */
+};
+
+/*
+ * Unreachable, source quench, redirect, time exceeded,
+ * parameter problem message data
+ */
+struct icmp_msg_quote {
+ uint32_t icmp_void; /* must be zero */
+#define icmp_gwaddr icmp_void /* router IP address to use */
+#define icmp_pptr icmp_void /* ptr to bad octet field */
+ uint8_t icmp_ip __flexarr; /* IP hdr + 8 bytes of pkt */
+};
+
+/*
+ * Router advertisement message data, RFC 1256
+ */
+struct icmp_msg_rtradvert {
+ uint8_t icmp_num_addrs; /* # of address / pref pairs */
+ uint8_t icmp_wpa; /* words / address == 2 */
+ uint16_t icmp_lifetime; /* route lifetime in seconds */
+ struct icmp_msg_rtr_data {
+ uint32_t icmp_void;
+#define icmp_gwaddr icmp_void /* router IP address */
+ uint32_t icmp_pref; /* router preference (usu 0) */
+ } icmp_rtr __flexarr; /* variable # of routers */
+};
+#define ICMP_RTR_PREF_NODEFAULT 0x80000000 /* do not use as default gw */
+
+/*
+ * Timestamp message data
+ */
+struct icmp_msg_tstamp {
+ uint32_t icmp_id; /* identifier */
+ uint32_t icmp_seq; /* sequence number */
+ uint32_t icmp_ts_orig; /* originate timestamp */
+ uint32_t icmp_ts_rx; /* receive timestamp */
+ uint32_t icmp_ts_tx; /* transmit timestamp */
+};
+
+/*
+ * Address mask message data, RFC 950
+ */
+struct icmp_msg_mask {
+ uint32_t icmp_id; /* identifier */
+ uint32_t icmp_seq; /* sequence number */
+ uint32_t icmp_mask; /* address mask */
+};
+
+/*
+ * Traceroute message data, RFC 1393, RFC 1812
+ */
+struct icmp_msg_traceroute {
+ uint16_t icmp_id; /* identifier */
+ uint16_t icmp_void; /* unused */
+ uint16_t icmp_ohc; /* outbound hop count */
+ uint16_t icmp_rhc; /* return hop count */
+ uint32_t icmp_speed; /* link speed, bytes/sec */
+ uint32_t icmp_mtu; /* MTU in bytes */
+};
+
+/*
+ * Domain name reply message data, RFC 1788
+ */
+struct icmp_msg_dnsreply {
+ uint16_t icmp_id; /* identifier */
+ uint16_t icmp_seq; /* sequence number */
+ uint32_t icmp_ttl; /* time-to-live */
+ uint8_t icmp_names __flexarr; /* variable number of names */
+};
+
+/*
+ * Generic identifier, sequence number data
+ */
+struct icmp_msg_idseq {
+ uint16_t icmp_id;
+ uint16_t icmp_seq;
+};
+
+/*
+ * ICMP message union
+ */
+union icmp_msg {
+ struct icmp_msg_echo echo; /* ICMP_ECHO{REPLY} */
+ struct icmp_msg_quote unreach; /* ICMP_UNREACH */
+ struct icmp_msg_needfrag needfrag; /* ICMP_UNREACH_NEEDFRAG */
+ struct icmp_msg_quote srcquench; /* ICMP_SRCQUENCH */
+ struct icmp_msg_quote redirect; /* ICMP_REDIRECT (set to 0) */
+ uint32_t rtrsolicit; /* ICMP_RTRSOLICIT */
+ struct icmp_msg_rtradvert rtradvert; /* ICMP_RTRADVERT */
+ struct icmp_msg_quote timexceed; /* ICMP_TIMEXCEED */
+ struct icmp_msg_quote paramprob; /* ICMP_PARAMPROB */
+ struct icmp_msg_tstamp tstamp; /* ICMP_TSTAMP{REPLY} */
+ struct icmp_msg_idseq info; /* ICMP_INFO{REPLY} */
+ struct icmp_msg_mask mask; /* ICMP_MASK{REPLY} */
+ struct icmp_msg_traceroute traceroute; /* ICMP_TRACEROUTE */
+ struct icmp_msg_idseq dns; /* ICMP_DNS */
+ struct icmp_msg_dnsreply dnsreply; /* ICMP_DNSREPLY */
+};
+
+#ifndef __GNUC__
+# pragma pack()
+#endif
+
+#define icmp_pack_hdr(hdr, type, code) do { \
+ struct icmp_hdr *icmp_pack_p = (struct icmp_hdr *)(hdr); \
+ icmp_pack_p->icmp_type = type; icmp_pack_p->icmp_code = code; \
+} while (0)
+
+#define icmp_pack_hdr_echo(hdr, type, code, id, seq, data, len) do { \
+ struct icmp_msg_echo *echo_pack_p = (struct icmp_msg_echo *) \
+ ((uint8_t *)(hdr) + ICMP_HDR_LEN); \
+ icmp_pack_hdr(hdr, type, code); \
+ echo_pack_p->icmp_id = htons(id); \
+ echo_pack_p->icmp_seq = htons(seq); \
+ memmove(echo_pack_p->icmp_data, data, len); \
+} while (0)
+
+#define icmp_pack_hdr_quote(hdr, type, code, word, pkt, len) do { \
+ struct icmp_msg_quote *quote_pack_p = (struct icmp_msg_quote *) \
+ ((uint8_t *)(hdr) + ICMP_HDR_LEN); \
+ icmp_pack_hdr(hdr, type, code); \
+ quote_pack_p->icmp_void = htonl(word); \
+ memmove(quote_pack_p->icmp_ip, pkt, len); \
+} while (0)
+
+#define icmp_pack_hdr_mask(hdr, type, code, id, seq, mask) do { \
+ struct icmp_msg_mask *mask_pack_p = (struct icmp_msg_mask *) \
+ ((uint8_t *)(hdr) + ICMP_HDR_LEN); \
+ icmp_pack_hdr(hdr, type, code); \
+ mask_pack_p->icmp_id = htons(id); \
+ mask_pack_p->icmp_seq = htons(seq); \
+ mask_pack_p->icmp_mask = htonl(mask); \
+} while (0)
+
+#define icmp_pack_hdr_needfrag(hdr, type, code, mtu, pkt, len) do { \
+ struct icmp_msg_needfrag *frag_pack_p = \
+ (struct icmp_msg_needfrag *)((uint8_t *)(hdr) + ICMP_HDR_LEN); \
+ icmp_pack_hdr(hdr, type, code); \
+ frag_pack_p->icmp_void = 0; \
+ frag_pack_p->icmp_mtu = htons(mtu); \
+ memmove(frag_pack_p->icmp_ip, pkt, len); \
+} while (0)
+
+#endif /* DNET_ICMP_H */
diff --git a/ext/dnet/dnet/intf.h b/ext/dnet/dnet/intf.h
new file mode 100644
index 000000000..38acd4356
--- /dev/null
+++ b/ext/dnet/dnet/intf.h
@@ -0,0 +1,68 @@
+/*
+ * intf.c
+ *
+ * Network interface operations.
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: intf.h,v 1.16 2004/01/13 07:41:09 dugsong Exp $
+ */
+
+#ifndef DNET_INTF_H
+#define DNET_INTF_H
+
+/*
+ * Interface entry
+ */
+#define INTF_NAME_LEN 16
+
+struct intf_entry {
+ u_int intf_len; /* length of entry */
+ char intf_name[INTF_NAME_LEN]; /* interface name */
+ u_short intf_type; /* interface type (r/o) */
+ u_short intf_flags; /* interface flags */
+ u_int intf_mtu; /* interface MTU */
+ struct addr intf_addr; /* interface address */
+ struct addr intf_dst_addr; /* point-to-point dst */
+ struct addr intf_link_addr; /* link-layer address */
+ u_int intf_alias_num; /* number of aliases */
+ struct addr intf_alias_addrs __flexarr; /* array of aliases */
+};
+
+/*
+ * MIB-II interface types - http://www.iana.org/assignments/ianaiftype-mib
+ */
+#define INTF_TYPE_OTHER 1 /* other */
+#define INTF_TYPE_ETH 6 /* Ethernet */
+#define INTF_TYPE_TOKENRING 9 /* Token Ring */
+#define INTF_TYPE_FDDI 15 /* FDDI */
+#define INTF_TYPE_PPP 23 /* Point-to-Point Protocol */
+#define INTF_TYPE_LOOPBACK 24 /* software loopback */
+#define INTF_TYPE_SLIP 28 /* Serial Line Interface Protocol */
+#define INTF_TYPE_TUN 53 /* proprietary virtual/internal */
+
+/*
+ * Interface flags
+ */
+#define INTF_FLAG_UP 0x01 /* enable interface */
+#define INTF_FLAG_LOOPBACK 0x02 /* is a loopback net (r/o) */
+#define INTF_FLAG_POINTOPOINT 0x04 /* point-to-point link (r/o) */
+#define INTF_FLAG_NOARP 0x08 /* disable ARP */
+#define INTF_FLAG_BROADCAST 0x10 /* supports broadcast (r/o) */
+#define INTF_FLAG_MULTICAST 0x20 /* supports multicast (r/o) */
+
+typedef struct intf_handle intf_t;
+
+typedef int (*intf_handler)(const struct intf_entry *entry, void *arg);
+
+__BEGIN_DECLS
+intf_t *intf_open(void);
+int intf_get(intf_t *i, struct intf_entry *entry);
+int intf_get_src(intf_t *i, struct intf_entry *entry, struct addr *src);
+int intf_get_dst(intf_t *i, struct intf_entry *entry, struct addr *dst);
+int intf_set(intf_t *i, const struct intf_entry *entry);
+int intf_loop(intf_t *i, intf_handler callback, void *arg);
+intf_t *intf_close(intf_t *i);
+__END_DECLS
+
+#endif /* DNET_INTF_H */
diff --git a/ext/dnet/dnet/ip.h b/ext/dnet/dnet/ip.h
new file mode 100644
index 000000000..95b7718fb
--- /dev/null
+++ b/ext/dnet/dnet/ip.h
@@ -0,0 +1,487 @@
+/*
+ * ip.h
+ *
+ * Internet Protocol (RFC 791).
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: ip.h,v 1.23 2003/03/16 17:39:17 dugsong Exp $
+ */
+
+#ifndef DNET_IP_H
+#define DNET_IP_H
+
+#define IP_ADDR_LEN 4 /* IP address length */
+#define IP_ADDR_BITS 32 /* IP address bits */
+
+#define IP_HDR_LEN 20 /* base IP header length */
+#define IP_OPT_LEN 2 /* base IP option length */
+#define IP_OPT_LEN_MAX 40
+#define IP_HDR_LEN_MAX (IP_HDR_LEN + IP_OPT_LEN_MAX)
+
+#define IP_LEN_MAX 65535
+#define IP_LEN_MIN IP_HDR_LEN
+
+typedef uint32_t ip_addr_t;
+
+#ifndef __GNUC__
+# define __attribute__(x)
+# pragma pack(1)
+#endif
+
+/*
+ * IP header, without options
+ */
+struct ip_hdr {
+#if DNET_BYTESEX == DNET_BIG_ENDIAN
+ uint8_t ip_v:4, /* version */
+ ip_hl:4; /* header length (incl any options) */
+#elif DNET_BYTESEX == DNET_LIL_ENDIAN
+ uint8_t ip_hl:4,
+ ip_v:4;
+#else
+# error "need to include <dnet.h>"
+#endif
+ uint8_t ip_tos; /* type of service */
+ uint16_t ip_len; /* total length (incl header) */
+ uint16_t ip_id; /* identification */
+ uint16_t ip_off; /* fragment offset and flags */
+ uint8_t ip_ttl; /* time to live */
+ uint8_t ip_p; /* protocol */
+ uint16_t ip_sum; /* checksum */
+ ip_addr_t ip_src; /* source address */
+ ip_addr_t ip_dst; /* destination address */
+};
+
+/*
+ * Type of service (ip_tos), RFC 1349 ("obsoleted by RFC 2474")
+ */
+#define IP_TOS_DEFAULT 0x00 /* default */
+#define IP_TOS_LOWDELAY 0x10 /* low delay */
+#define IP_TOS_THROUGHPUT 0x08 /* high throughput */
+#define IP_TOS_RELIABILITY 0x04 /* high reliability */
+#define IP_TOS_LOWCOST 0x02 /* low monetary cost - XXX */
+#define IP_TOS_ECT 0x02 /* ECN-capable transport */
+#define IP_TOS_CE 0x01 /* congestion experienced */
+
+/*
+ * IP precedence (high 3 bits of ip_tos), hopefully unused
+ */
+#define IP_TOS_PREC_ROUTINE 0x00
+#define IP_TOS_PREC_PRIORITY 0x20
+#define IP_TOS_PREC_IMMEDIATE 0x40
+#define IP_TOS_PREC_FLASH 0x60
+#define IP_TOS_PREC_FLASHOVERRIDE 0x80
+#define IP_TOS_PREC_CRITIC_ECP 0xa0
+#define IP_TOS_PREC_INTERNETCONTROL 0xc0
+#define IP_TOS_PREC_NETCONTROL 0xe0
+
+/*
+ * Fragmentation flags (ip_off)
+ */
+#define IP_RF 0x8000 /* reserved */
+#define IP_DF 0x4000 /* don't fragment */
+#define IP_MF 0x2000 /* more fragments (not last frag) */
+#define IP_OFFMASK 0x1fff /* mask for fragment offset */
+
+/*
+ * Time-to-live (ip_ttl), seconds
+ */
+#define IP_TTL_DEFAULT 64 /* default ttl, RFC 1122, RFC 1340 */
+#define IP_TTL_MAX 255 /* maximum ttl */
+
+/*
+ * Protocol (ip_p) - http://www.iana.org/assignments/protocol-numbers
+ */
+#define IP_PROTO_IP 0 /* dummy for IP */
+#define IP_PROTO_HOPOPTS IP_PROTO_IP /* IPv6 hop-by-hop options */
+#define IP_PROTO_ICMP 1 /* ICMP */
+#define IP_PROTO_IGMP 2 /* IGMP */
+#define IP_PROTO_GGP 3 /* gateway-gateway protocol */
+#define IP_PROTO_IPIP 4 /* IP in IP */
+#define IP_PROTO_ST 5 /* ST datagram mode */
+#define IP_PROTO_TCP 6 /* TCP */
+#define IP_PROTO_CBT 7 /* CBT */
+#define IP_PROTO_EGP 8 /* exterior gateway protocol */
+#define IP_PROTO_IGP 9 /* interior gateway protocol */
+#define IP_PROTO_BBNRCC 10 /* BBN RCC monitoring */
+#define IP_PROTO_NVP 11 /* Network Voice Protocol */
+#define IP_PROTO_PUP 12 /* PARC universal packet */
+#define IP_PROTO_ARGUS 13 /* ARGUS */
+#define IP_PROTO_EMCON 14 /* EMCON */
+#define IP_PROTO_XNET 15 /* Cross Net Debugger */
+#define IP_PROTO_CHAOS 16 /* Chaos */
+#define IP_PROTO_UDP 17 /* UDP */
+#define IP_PROTO_MUX 18 /* multiplexing */
+#define IP_PROTO_DCNMEAS 19 /* DCN measurement */
+#define IP_PROTO_HMP 20 /* Host Monitoring Protocol */
+#define IP_PROTO_PRM 21 /* Packet Radio Measurement */
+#define IP_PROTO_IDP 22 /* Xerox NS IDP */
+#define IP_PROTO_TRUNK1 23 /* Trunk-1 */
+#define IP_PROTO_TRUNK2 24 /* Trunk-2 */
+#define IP_PROTO_LEAF1 25 /* Leaf-1 */
+#define IP_PROTO_LEAF2 26 /* Leaf-2 */
+#define IP_PROTO_RDP 27 /* "Reliable Datagram" proto */
+#define IP_PROTO_IRTP 28 /* Inet Reliable Transaction */
+#define IP_PROTO_TP 29 /* ISO TP class 4 */
+#define IP_PROTO_NETBLT 30 /* Bulk Data Transfer */
+#define IP_PROTO_MFPNSP 31 /* MFE Network Services */
+#define IP_PROTO_MERITINP 32 /* Merit Internodal Protocol */
+#define IP_PROTO_SEP 33 /* Sequential Exchange proto */
+#define IP_PROTO_3PC 34 /* Third Party Connect proto */
+#define IP_PROTO_IDPR 35 /* Interdomain Policy Route */
+#define IP_PROTO_XTP 36 /* Xpress Transfer Protocol */
+#define IP_PROTO_DDP 37 /* Datagram Delivery Proto */
+#define IP_PROTO_CMTP 38 /* IDPR Ctrl Message Trans */
+#define IP_PROTO_TPPP 39 /* TP++ Transport Protocol */
+#define IP_PROTO_IL 40 /* IL Transport Protocol */
+#define IP_PROTO_IPV6 41 /* IPv6 */
+#define IP_PROTO_SDRP 42 /* Source Demand Routing */
+#define IP_PROTO_ROUTING 43 /* IPv6 routing header */
+#define IP_PROTO_FRAGMENT 44 /* IPv6 fragmentation header */
+#define IP_PROTO_RSVP 46 /* Reservation protocol */
+#define IP_PROTO_GRE 47 /* General Routing Encap */
+#define IP_PROTO_MHRP 48 /* Mobile Host Routing */
+#define IP_PROTO_ENA 49 /* ENA */
+#define IP_PROTO_ESP 50 /* Encap Security Payload */
+#define IP_PROTO_AH 51 /* Authentication Header */
+#define IP_PROTO_INLSP 52 /* Integated Net Layer Sec */
+#define IP_PROTO_SWIPE 53 /* SWIPE */
+#define IP_PROTO_NARP 54 /* NBMA Address Resolution */
+#define IP_PROTO_MOBILE 55 /* Mobile IP, RFC 2004 */
+#define IP_PROTO_TLSP 56 /* Transport Layer Security */
+#define IP_PROTO_SKIP 57 /* SKIP */
+#define IP_PROTO_ICMPV6 58 /* ICMP for IPv6 */
+#define IP_PROTO_NONE 59 /* IPv6 no next header */
+#define IP_PROTO_DSTOPTS 60 /* IPv6 destination options */
+#define IP_PROTO_ANYHOST 61 /* any host internal proto */
+#define IP_PROTO_CFTP 62 /* CFTP */
+#define IP_PROTO_ANYNET 63 /* any local network */
+#define IP_PROTO_EXPAK 64 /* SATNET and Backroom EXPAK */
+#define IP_PROTO_KRYPTOLAN 65 /* Kryptolan */
+#define IP_PROTO_RVD 66 /* MIT Remote Virtual Disk */
+#define IP_PROTO_IPPC 67 /* Inet Pluribus Packet Core */
+#define IP_PROTO_DISTFS 68 /* any distributed fs */
+#define IP_PROTO_SATMON 69 /* SATNET Monitoring */
+#define IP_PROTO_VISA 70 /* VISA Protocol */
+#define IP_PROTO_IPCV 71 /* Inet Packet Core Utility */
+#define IP_PROTO_CPNX 72 /* Comp Proto Net Executive */
+#define IP_PROTO_CPHB 73 /* Comp Protocol Heart Beat */
+#define IP_PROTO_WSN 74 /* Wang Span Network */
+#define IP_PROTO_PVP 75 /* Packet Video Protocol */
+#define IP_PROTO_BRSATMON 76 /* Backroom SATNET Monitor */
+#define IP_PROTO_SUNND 77 /* SUN ND Protocol */
+#define IP_PROTO_WBMON 78 /* WIDEBAND Monitoring */
+#define IP_PROTO_WBEXPAK 79 /* WIDEBAND EXPAK */
+#define IP_PROTO_EON 80 /* ISO CNLP */
+#define IP_PROTO_VMTP 81 /* Versatile Msg Transport*/
+#define IP_PROTO_SVMTP 82 /* Secure VMTP */
+#define IP_PROTO_VINES 83 /* VINES */
+#define IP_PROTO_TTP 84 /* TTP */
+#define IP_PROTO_NSFIGP 85 /* NSFNET-IGP */
+#define IP_PROTO_DGP 86 /* Dissimilar Gateway Proto */
+#define IP_PROTO_TCF 87 /* TCF */
+#define IP_PROTO_EIGRP 88 /* EIGRP */
+#define IP_PROTO_OSPF 89 /* Open Shortest Path First */
+#define IP_PROTO_SPRITERPC 90 /* Sprite RPC Protocol */
+#define IP_PROTO_LARP 91 /* Locus Address Resolution */
+#define IP_PROTO_MTP 92 /* Multicast Transport Proto */
+#define IP_PROTO_AX25 93 /* AX.25 Frames */
+#define IP_PROTO_IPIPENCAP 94 /* yet-another IP encap */
+#define IP_PROTO_MICP 95 /* Mobile Internet Ctrl */
+#define IP_PROTO_SCCSP 96 /* Semaphore Comm Sec Proto */
+#define IP_PROTO_ETHERIP 97 /* Ethernet in IPv4 */
+#define IP_PROTO_ENCAP 98 /* encapsulation header */
+#define IP_PROTO_ANYENC 99 /* private encryption scheme */
+#define IP_PROTO_GMTP 100 /* GMTP */
+#define IP_PROTO_IFMP 101 /* Ipsilon Flow Mgmt Proto */
+#define IP_PROTO_PNNI 102 /* PNNI over IP */
+#define IP_PROTO_PIM 103 /* Protocol Indep Multicast */
+#define IP_PROTO_ARIS 104 /* ARIS */
+#define IP_PROTO_SCPS 105 /* SCPS */
+#define IP_PROTO_QNX 106 /* QNX */
+#define IP_PROTO_AN 107 /* Active Networks */
+#define IP_PROTO_IPCOMP 108 /* IP Payload Compression */
+#define IP_PROTO_SNP 109 /* Sitara Networks Protocol */
+#define IP_PROTO_COMPAQPEER 110 /* Compaq Peer Protocol */
+#define IP_PROTO_IPXIP 111 /* IPX in IP */
+#define IP_PROTO_VRRP 112 /* Virtual Router Redundancy */
+#define IP_PROTO_PGM 113 /* PGM Reliable Transport */
+#define IP_PROTO_ANY0HOP 114 /* 0-hop protocol */
+#define IP_PROTO_L2TP 115 /* Layer 2 Tunneling Proto */
+#define IP_PROTO_DDX 116 /* D-II Data Exchange (DDX) */
+#define IP_PROTO_IATP 117 /* Interactive Agent Xfer */
+#define IP_PROTO_STP 118 /* Schedule Transfer Proto */
+#define IP_PROTO_SRP 119 /* SpectraLink Radio Proto */
+#define IP_PROTO_UTI 120 /* UTI */
+#define IP_PROTO_SMP 121 /* Simple Message Protocol */
+#define IP_PROTO_SM 122 /* SM */
+#define IP_PROTO_PTP 123 /* Performance Transparency */
+#define IP_PROTO_ISIS 124 /* ISIS over IPv4 */
+#define IP_PROTO_FIRE 125 /* FIRE */
+#define IP_PROTO_CRTP 126 /* Combat Radio Transport */
+#define IP_PROTO_CRUDP 127 /* Combat Radio UDP */
+#define IP_PROTO_SSCOPMCE 128 /* SSCOPMCE */
+#define IP_PROTO_IPLT 129 /* IPLT */
+#define IP_PROTO_SPS 130 /* Secure Packet Shield */
+#define IP_PROTO_PIPE 131 /* Private IP Encap in IP */
+#define IP_PROTO_SCTP 132 /* Stream Ctrl Transmission */
+#define IP_PROTO_FC 133 /* Fibre Channel */
+#define IP_PROTO_RSVPIGN 134 /* RSVP-E2E-IGNORE */
+#define IP_PROTO_RAW 255 /* Raw IP packets */
+#define IP_PROTO_RESERVED IP_PROTO_RAW /* Reserved */
+#define IP_PROTO_MAX 255
+
+/*
+ * Option types (opt_type) - http://www.iana.org/assignments/ip-parameters
+ */
+#define IP_OPT_CONTROL 0x00 /* control */
+#define IP_OPT_DEBMEAS 0x40 /* debugging & measurement */
+#define IP_OPT_COPY 0x80 /* copy into all fragments */
+#define IP_OPT_RESERVED1 0x20
+#define IP_OPT_RESERVED2 0x60
+
+#define IP_OPT_EOL 0 /* end of option list */
+#define IP_OPT_NOP 1 /* no operation */
+#define IP_OPT_SEC (2|IP_OPT_COPY) /* DoD basic security */
+#define IP_OPT_LSRR (3|IP_OPT_COPY) /* loose source route */
+#define IP_OPT_TS (4|IP_OPT_DEBMEAS) /* timestamp */
+#define IP_OPT_ESEC (5|IP_OPT_COPY) /* DoD extended security */
+#define IP_OPT_CIPSO (6|IP_OPT_COPY) /* commercial security */
+#define IP_OPT_RR 7 /* record route */
+#define IP_OPT_SATID (8|IP_OPT_COPY) /* stream ID (obsolete) */
+#define IP_OPT_SSRR (9|IP_OPT_COPY) /* strict source route */
+#define IP_OPT_ZSU 10 /* experimental measurement */
+#define IP_OPT_MTUP 11 /* MTU probe */
+#define IP_OPT_MTUR 12 /* MTU reply */
+#define IP_OPT_FINN (13|IP_OPT_COPY|IP_OPT_DEBMEAS) /* exp flow control */
+#define IP_OPT_VISA (14|IP_OPT_COPY) /* exp access control */
+#define IP_OPT_ENCODE 15 /* ??? */
+#define IP_OPT_IMITD (16|IP_OPT_COPY) /* IMI traffic descriptor */
+#define IP_OPT_EIP (17|IP_OPT_COPY) /* extended IP, RFC 1385 */
+#define IP_OPT_TR (18|IP_OPT_DEBMEAS) /* traceroute */
+#define IP_OPT_ADDEXT (19|IP_OPT_COPY) /* IPv7 ext addr, RFC 1475 */
+#define IP_OPT_RTRALT (20|IP_OPT_COPY) /* router alert, RFC 2113 */
+#define IP_OPT_SDB (21|IP_OPT_COPY) /* directed bcast, RFC 1770 */
+#define IP_OPT_NSAPA (22|IP_OPT_COPY) /* NSAP addresses */
+#define IP_OPT_DPS (23|IP_OPT_COPY) /* dynamic packet state */
+#define IP_OPT_UMP (24|IP_OPT_COPY) /* upstream multicast */
+#define IP_OPT_MAX 25
+
+#define IP_OPT_COPIED(o) ((o) & 0x80)
+#define IP_OPT_CLASS(o) ((o) & 0x60)
+#define IP_OPT_NUMBER(o) ((o) & 0x1f)
+#define IP_OPT_TYPEONLY(o) ((o) == IP_OPT_EOL || (o) == IP_OPT_NOP)
+
+/*
+ * Security option data - RFC 791, 3.1
+ */
+struct ip_opt_data_sec {
+ uint16_t s; /* security */
+ uint16_t c; /* compartments */
+ uint16_t h; /* handling restrictions */
+ uint8_t tcc[3]; /* transmission control code */
+} __attribute__((__packed__));
+
+#define IP_OPT_SEC_UNCLASS 0x0000 /* unclassified */
+#define IP_OPT_SEC_CONFID 0xf135 /* confidential */
+#define IP_OPT_SEC_EFTO 0x789a /* EFTO */
+#define IP_OPT_SEC_MMMM 0xbc4d /* MMMM */
+#define IP_OPT_SEC_PROG 0x5e26 /* PROG */
+#define IP_OPT_SEC_RESTR 0xaf13 /* restricted */
+#define IP_OPT_SEC_SECRET 0xd788 /* secret */
+#define IP_OPT_SEC_TOPSECRET 0x6bc5 /* top secret */
+
+/*
+ * {Loose Source, Record, Strict Source} Route option data - RFC 791, 3.1
+ */
+struct ip_opt_data_rr {
+ uint8_t ptr; /* from start of option, >= 4 */
+ uint32_t iplist __flexarr; /* list of IP addresses */
+} __attribute__((__packed__));
+
+/*
+ * Timestamp option data - RFC 791, 3.1
+ */
+struct ip_opt_data_ts {
+ uint8_t ptr; /* from start of option, >= 5 */
+#if DNET_BYTESEX == DNET_BIG_ENDIAN
+ uint8_t oflw:4, /* number of IPs skipped */
+ flg:4; /* address[ / timestamp] flag */
+#elif DNET_BYTESEX == DNET_LIL_ENDIAN
+ uint8_t flg:4,
+ oflw:4;
+#endif
+ uint32_t ipts __flexarr; /* IP address [/ timestamp] pairs */
+} __attribute__((__packed__));
+
+#define IP_OPT_TS_TSONLY 0 /* timestamps only */
+#define IP_OPT_TS_TSADDR 1 /* IP address / timestamp pairs */
+#define IP_OPT_TS_PRESPEC 3 /* IP address / zero timestamp pairs */
+
+/*
+ * Traceroute option data - RFC 1393, 2.2
+ */
+struct ip_opt_data_tr {
+ uint16_t id; /* ID number */
+ uint16_t ohc; /* outbound hop count */
+ uint16_t rhc; /* return hop count */
+ uint32_t origip; /* originator IP address */
+} __attribute__((__packed__));
+
+/*
+ * IP option (following IP header)
+ */
+struct ip_opt {
+ uint8_t opt_type; /* option type */
+ uint8_t opt_len; /* option length >= IP_OPT_LEN */
+ union ip_opt_data {
+ struct ip_opt_data_sec sec; /* IP_OPT_SEC */
+ struct ip_opt_data_rr rr; /* IP_OPT_{L,S}RR */
+ struct ip_opt_data_ts ts; /* IP_OPT_TS */
+ uint16_t satid; /* IP_OPT_SATID */
+ uint16_t mtu; /* IP_OPT_MTU{P,R} */
+ struct ip_opt_data_tr tr; /* IP_OPT_TR */
+ uint32_t addext[2]; /* IP_OPT_ADDEXT */
+ uint16_t rtralt; /* IP_OPT_RTRALT */
+ uint32_t sdb[9]; /* IP_OPT_SDB */
+ uint8_t data8[IP_OPT_LEN_MAX - IP_OPT_LEN];
+ } opt_data;
+} __attribute__((__packed__));
+
+#ifndef __GNUC__
+# pragma pack()
+#endif
+
+/*
+ * Classful addressing
+ */
+#define IP_CLASSA(i) (((uint32_t)(i) & htonl(0x80000000)) == \
+ htonl(0x00000000))
+#define IP_CLASSA_NET (htonl(0xff000000))
+#define IP_CLASSA_NSHIFT 24
+#define IP_CLASSA_HOST (htonl(0x00ffffff))
+#define IP_CLASSA_MAX 128
+
+#define IP_CLASSB(i) (((uint32_t)(i) & htonl(0xc0000000)) == \
+ htonl(0x80000000))
+#define IP_CLASSB_NET (htonl(0xffff0000))
+#define IP_CLASSB_NSHIFT 16
+#define IP_CLASSB_HOST (htonl(0x0000ffff))
+#define IP_CLASSB_MAX 65536
+
+#define IP_CLASSC(i) (((uint32_t)(i) & htonl(0xe0000000)) == \
+ htonl(0xc0000000))
+#define IP_CLASSC_NET (htonl(0xffffff00))
+#define IP_CLASSC_NSHIFT 8
+#define IP_CLASSC_HOST (htonl(0x000000ff))
+
+#define IP_CLASSD(i) (((uint32_t)(i) & htonl(0xf0000000)) == \
+ htonl(0xe0000000))
+/* These ones aren't really net and host fields, but routing needn't know. */
+#define IP_CLASSD_NET (htonl(0xf0000000))
+#define IP_CLASSD_NSHIFT 28
+#define IP_CLASSD_HOST (htonl(0x0fffffff))
+#define IP_MULTICAST(i) IP_CLASSD(i)
+
+#define IP_EXPERIMENTAL(i) (((uint32_t)(i) & htonl(0xf0000000)) == \
+ htonl(0xf0000000))
+#define IP_BADCLASS(i) (((uint32_t)(i) & htonl(0xf0000000)) == \
+ htonl(0xf0000000))
+#define IP_LOCAL_GROUP(i) (((uint32_t)(i) & htonl(0xffffff00)) == \
+ htonl(0xe0000000))
+/*
+ * Reserved addresses
+ */
+#define IP_ADDR_ANY (htonl(0x00000000)) /* 0.0.0.0 */
+#define IP_ADDR_BROADCAST (htonl(0xffffffff)) /* 255.255.255.255 */
+#define IP_ADDR_LOOPBACK (htonl(0x7f000001)) /* 127.0.0.1 */
+#define IP_ADDR_MCAST_ALL (htonl(0xe0000001)) /* 224.0.0.1 */
+#define IP_ADDR_MCAST_LOCAL (htonl(0xe00000ff)) /* 224.0.0.225 */
+
+#define ip_pack_hdr(hdr, tos, len, id, off, ttl, p, src, dst) do { \
+ struct ip_hdr *ip_pack_p = (struct ip_hdr *)(hdr); \
+ ip_pack_p->ip_v = 4; ip_pack_p->ip_hl = 5; \
+ ip_pack_p->ip_tos = tos; ip_pack_p->ip_len = htons(len); \
+ ip_pack_p->ip_id = htons(id); ip_pack_p->ip_off = htons(off); \
+ ip_pack_p->ip_ttl = ttl; ip_pack_p->ip_p = p; \
+ ip_pack_p->ip_src = src; ip_pack_p->ip_dst = dst; \
+} while (0)
+
+typedef struct ip_handle ip_t;
+
+__BEGIN_DECLS
+ip_t *ip_open(void);
+size_t ip_send(ip_t *i, const void *buf, size_t len);
+ip_t *ip_close(ip_t *i);
+
+char *ip_ntop(const ip_addr_t *ip, char *dst, size_t len);
+int ip_pton(const char *src, ip_addr_t *dst);
+char *ip_ntoa(const ip_addr_t *ip);
+#define ip_aton ip_pton
+
+size_t ip_add_option(void *buf, size_t len,
+ int proto, const void *optbuf, size_t optlen);
+void ip_checksum(void *buf, size_t len);
+
+inline int
+ip_cksum_add(const void *buf, size_t len, int cksum)
+{
+ uint16_t *sp = (uint16_t *)buf;
+ int n, sn;
+
+ sn = len / 2;
+ n = (sn + 15) / 16;
+
+ /* XXX - unroll loop using Duff's device. */
+ switch (sn % 16) {
+ case 0: do {
+ cksum += *sp++;
+ case 15:
+ cksum += *sp++;
+ case 14:
+ cksum += *sp++;
+ case 13:
+ cksum += *sp++;
+ case 12:
+ cksum += *sp++;
+ case 11:
+ cksum += *sp++;
+ case 10:
+ cksum += *sp++;
+ case 9:
+ cksum += *sp++;
+ case 8:
+ cksum += *sp++;
+ case 7:
+ cksum += *sp++;
+ case 6:
+ cksum += *sp++;
+ case 5:
+ cksum += *sp++;
+ case 4:
+ cksum += *sp++;
+ case 3:
+ cksum += *sp++;
+ case 2:
+ cksum += *sp++;
+ case 1:
+ cksum += *sp++;
+ } while (--n > 0);
+ }
+ if (len & 1)
+ cksum += htons(*(u_char *)sp << 8);
+
+ return (cksum);
+}
+
+inline uint16_t
+ip_cksum_carry(int x)
+{
+ x = (x >> 16) + (x & 0xffff);
+ return ~(x + (x >> 16)) & 0xffff;
+}
+
+__END_DECLS
+
+#endif /* DNET_IP_H */
diff --git a/ext/dnet/dnet/ip6.h b/ext/dnet/dnet/ip6.h
new file mode 100644
index 000000000..7fae29b47
--- /dev/null
+++ b/ext/dnet/dnet/ip6.h
@@ -0,0 +1,183 @@
+/*
+ * ip6.h
+ *
+ * Internet Protocol, Version 6 (RFC 2460).
+ *
+ * Copyright (c) 2002 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: ip6.h,v 1.6 2004/02/23 10:01:15 dugsong Exp $
+ */
+
+#ifndef DNET_IP6_H
+#define DNET_IP6_H
+
+#define IP6_ADDR_LEN 16
+#define IP6_ADDR_BITS 128
+
+#define IP6_HDR_LEN 40 /* IPv6 header length */
+#define IP6_LEN_MIN IP6_HDR_LEN
+#define IP6_LEN_MAX 65535 /* non-jumbo payload */
+
+#define IP6_MTU_MIN 1280 /* minimum MTU (1024 + 256) */
+
+typedef struct ip6_addr {
+ uint8_t data[IP6_ADDR_LEN];
+} ip6_addr_t;
+
+#ifndef __GNUC__
+# define __attribute__(x)
+# pragma pack(1)
+#endif
+
+/*
+ * IPv6 header
+ */
+struct ip6_hdr {
+ union {
+ struct ip6_hdr_ctl {
+ uint32_t ip6_un1_flow; /* 20 bits of flow ID */
+ uint16_t ip6_un1_plen; /* payload length */
+ uint8_t ip6_un1_nxt; /* next header */
+ uint8_t ip6_un1_hlim; /* hop limit */
+ } ip6_un1;
+ uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits class */
+ } ip6_ctlun;
+ ip6_addr_t ip6_src;
+ ip6_addr_t ip6_dst;
+} __attribute__((__packed__));
+
+#define ip6_vfc ip6_ctlun.ip6_un2_vfc
+#define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow
+#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
+#define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt /* IP_PROTO_* */
+#define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim
+
+#define IP6_VERSION 0x60
+#define IP6_VERSION_MASK 0xf0 /* ip6_vfc version */
+
+#if DNET_BYTESEX == DNET_BIG_ENDIAN
+#define IP6_FLOWINFO_MASK 0x0fffffff /* ip6_flow info (28 bits) */
+#define IP6_FLOWLABEL_MASK 0x000fffff /* ip6_flow label (20 bits) */
+#elif DNET_BYTESEX == DNET_LIL_ENDIAN
+#define IP6_FLOWINFO_MASK 0xffffff0f /* ip6_flow info (28 bits) */
+#define IP6_FLOWLABEL_MASK 0xffff0f00 /* ip6_flow label (20 bits) */
+#endif
+
+/*
+ * Hop limit (ip6_hlim)
+ */
+#define IP6_HLIM_DEFAULT 64
+#define IP6_HLIM_MAX 255
+
+/*
+ * Preferred extension header order from RFC 2460, 4.1:
+ *
+ * IP_PROTO_IPV6, IP_PROTO_HOPOPTS, IP_PROTO_DSTOPTS, IP_PROTO_ROUTING,
+ * IP_PROTO_FRAGMENT, IP_PROTO_AH, IP_PROTO_ESP, IP_PROTO_DSTOPTS, IP_PROTO_*
+ */
+
+/*
+ * Routing header data (IP_PROTO_ROUTING)
+ */
+struct ip6_ext_data_routing {
+ uint8_t type; /* routing type */
+ uint8_t segleft; /* segments left */
+ /* followed by routing type specific data */
+} __attribute__((__packed__));
+
+struct ip6_ext_data_routing0 {
+ uint8_t type; /* always zero */
+ uint8_t segleft; /* segments left */
+ uint8_t reserved; /* reserved field */
+ uint8_t slmap[3]; /* strict/loose bit map */
+ ip6_addr_t addr[1]; /* up to 23 addresses */
+} __attribute__((__packed__));
+
+/*
+ * Fragment header data (IP_PROTO_FRAGMENT)
+ */
+struct ip6_ext_data_fragment {
+ uint16_t offlg; /* offset, reserved, and flag */
+ uint32_t ident; /* identification */
+} __attribute__((__packed__));
+
+/*
+ * Fragmentation offset, reserved, and flags (offlg)
+ */
+#if DNET_BYTESEX == DNET_BIG_ENDIAN
+#define IP6_OFF_MASK 0xfff8 /* mask out offset from offlg */
+#define IP6_RESERVED_MASK 0x0006 /* reserved bits in offlg */
+#define IP6_MORE_FRAG 0x0001 /* more-fragments flag */
+#elif DNET_BYTESEX == DNET_LIL_ENDIAN
+#define IP6_OFF_MASK 0xf8ff /* mask out offset from offlg */
+#define IP6_RESERVED_MASK 0x0600 /* reserved bits in offlg */
+#define IP6_MORE_FRAG 0x0100 /* more-fragments flag */
+#endif
+
+/*
+ * Option types, for IP_PROTO_HOPOPTS, IP_PROTO_DSTOPTS headers
+ */
+#define IP6_OPT_PAD1 0x00 /* 00 0 00000 */
+#define IP6_OPT_PADN 0x01 /* 00 0 00001 */
+#define IP6_OPT_JUMBO 0xC2 /* 11 0 00010 = 194 */
+#define IP6_OPT_JUMBO_LEN 6
+#define IP6_OPT_RTALERT 0x05 /* 00 0 00101 */
+#define IP6_OPT_RTALERT_LEN 4
+#define IP6_OPT_RTALERT_MLD 0 /* Datagram contains an MLD message */
+#define IP6_OPT_RTALERT_RSVP 1 /* Datagram contains an RSVP message */
+#define IP6_OPT_RTALERT_ACTNET 2 /* contains an Active Networks msg */
+#define IP6_OPT_LEN_MIN 2
+
+#define IP6_OPT_TYPE(o) ((o) & 0xC0) /* high 2 bits of opt_type */
+#define IP6_OPT_TYPE_SKIP 0x00 /* continue processing on failure */
+#define IP6_OPT_TYPE_DISCARD 0x40 /* discard packet on failure */
+#define IP6_OPT_TYPE_FORCEICMP 0x80 /* discard and send ICMP on failure */
+#define IP6_OPT_TYPE_ICMP 0xC0 /* ...only if non-multicast dst */
+
+#define IP6_OPT_MUTABLE 0x20 /* option data may change en route */
+
+/*
+ * Extension header (chained via {ip6,ext}_nxt, following IPv6 header)
+ */
+struct ip6_ext_hdr {
+ uint8_t ext_nxt; /* next header */
+ uint8_t ext_len; /* following length in units of 8 octets */
+ union {
+ struct ip6_ext_data_routing routing;
+ struct ip6_ext_data_fragment fragment;
+ } ext_data;
+} __attribute__((__packed__));
+
+#ifndef __GNUC__
+# pragma pack()
+#endif
+
+/*
+ * Reserved addresses
+ */
+#define IP6_ADDR_UNSPEC \
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+#define IP6_ADDR_LOOPBACK \
+ "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"
+
+#define ip6_pack_hdr(hdr, fc, fl, plen, nxt, hlim, src, dst) do { \
+ struct ip6_hdr *ip6 = (struct ip6_hdr *)(hdr); \
+ ip6->ip6_flow = htonl(((uint32_t)(fc) << 28) & \
+ (IP6_FLOWLABEL_MASK | (fl))); \
+ ip6->ip6_vfc = (IP6_VERSION | ((fc) >> 4)); \
+ ip6->ip6_plen = htons((plen)); \
+ ip6->ip6_nxt = (nxt); ip6->ip6_hlim = (hlim); \
+ memmove(&ip6->ip6_src, &(src), IP6_ADDR_LEN); \
+ memmove(&ip6->ip6_dst, &(dst), IP6_ADDR_LEN); \
+} while (0);
+
+__BEGIN_DECLS
+char *ip6_ntop(const ip6_addr_t *ip6, char *dst, size_t size);
+int ip6_pton(const char *src, ip6_addr_t *dst);
+char *ip6_ntoa(const ip6_addr_t *ip6);
+#define ip6_aton ip6_pton
+
+void ip6_checksum(void *buf, size_t len);
+__END_DECLS
+
+#endif /* DNET_IP6_H */
diff --git a/ext/dnet/dnet/os.h b/ext/dnet/dnet/os.h
new file mode 100644
index 000000000..cae244781
--- /dev/null
+++ b/ext/dnet/dnet/os.h
@@ -0,0 +1,117 @@
+/*
+ * os.h
+ *
+ * Sleazy OS-specific defines.
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: os.h,v 1.10 2004/05/04 03:19:42 dugsong Exp $
+ */
+
+#ifndef DNET_OS_H
+#define DNET_OS_H
+
+#ifdef _WIN32
+# include <windows.h>
+# include <winsock2.h>
+# include <stdint.h>
+/* XXX */
+# undef IP_OPT_LSRR
+# undef IP_OPT_TS
+# undef IP_OPT_RR
+# undef IP_OPT_SSRR
+#else
+# include <sys/param.h>
+# include <sys/types.h>
+# include <sys/socket.h>
+# include <netinet/in.h>
+# include <arpa/inet.h>
+# include <netdb.h>
+# ifdef __bsdi__
+# include <machine/types.h>
+ typedef u_int8_t uint8_t;
+ typedef u_int16_t uint16_t;
+ typedef u_int32_t uint32_t;
+ typedef u_int64_t uint64_t;
+# else
+# include <inttypes.h>
+# endif
+#endif
+
+#define DNET_LIL_ENDIAN 1234
+#define DNET_BIG_ENDIAN 4321
+
+/* BSD and IRIX */
+#ifdef BYTE_ORDER
+#if BYTE_ORDER == LITTLE_ENDIAN
+# define DNET_BYTESEX DNET_LIL_ENDIAN
+#elif BYTE_ORDER == BIG_ENDIAN
+# define DNET_BYTESEX DNET_BIG_ENDIAN
+#endif
+#endif
+
+/* Linux */
+#ifdef __BYTE_ORDER
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define DNET_BYTESEX DNET_LIL_ENDIAN
+#elif __BYTE_ORDER == __BIG_ENDIAN
+# define DNET_BYTESEX DNET_BIG_ENDIAN
+#endif
+#endif
+
+/* Solaris */
+#if defined(_BIT_FIELDS_LTOH)
+# define DNET_BYTESEX DNET_LIL_ENDIAN
+#elif defined (_BIT_FIELDS_HTOL)
+# define DNET_BYTESEX DNET_BIG_ENDIAN
+#endif
+
+/* Nastiness from old BIND code. */
+#ifndef DNET_BYTESEX
+# if defined(vax) || defined(ns32000) || defined(sun386) || defined(i386) || \
+ defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
+ defined(__alpha__) || defined(__alpha)
+# define DNET_BYTESEX DNET_LIL_ENDIAN
+# elif defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
+ defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
+ defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
+ defined(apollo) || defined(__convex__) || defined(_CRAY) || \
+ defined(__hppa) || defined(__hp9000) || \
+ defined(__hp9000s300) || defined(__hp9000s700) || defined(__ia64) || \
+ defined (BIT_ZERO_ON_LEFT) || defined(m68k)
+# define DNET_BYTESEX DNET_BIG_ENDIAN
+# else
+# error "bytesex unknown"
+# endif
+#endif
+
+/* C++ support. */
+#undef __BEGIN_DECLS
+#undef __END_DECLS
+#ifdef __cplusplus
+# define __BEGIN_DECLS extern "C" {
+# define __END_DECLS } /* extern "C" */
+#else
+# define __BEGIN_DECLS
+# define __END_DECLS
+#endif
+
+/* Support for flexible arrays. */
+#undef __flexarr
+#if defined(__GNUC__) && ((__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97))
+/* GCC 2.97 supports C99 flexible array members. */
+# define __flexarr []
+#else
+# ifdef __GNUC__
+# define __flexarr [0]
+# else
+# if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+# define __flexarr []
+# else
+/* Some other non-C99 compiler. Approximate with [1]. */
+# define __flexarr [1]
+# endif
+# endif
+#endif
+
+#endif /* DNET_OS_H */
diff --git a/ext/dnet/dnet/rand.h b/ext/dnet/dnet/rand.h
new file mode 100644
index 000000000..49121930c
--- /dev/null
+++ b/ext/dnet/dnet/rand.h
@@ -0,0 +1,33 @@
+/*
+ * rand.h
+ *
+ * Pseudo-random number generation, based on OpenBSD arc4random().
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ * Copyright (c) 1996 David Mazieres <dm@lcs.mit.edu>
+ *
+ * $Id: rand.h,v 1.4 2002/04/07 19:01:25 dugsong Exp $
+ */
+
+#ifndef DNET_RAND_H
+#define DNET_RAND_H
+
+typedef struct rand_handle rand_t;
+
+__BEGIN_DECLS
+rand_t *rand_open(void);
+
+int rand_get(rand_t *r, void *buf, size_t len);
+int rand_set(rand_t *r, const void *seed, size_t len);
+int rand_add(rand_t *r, const void *buf, size_t len);
+
+uint8_t rand_uint8(rand_t *r);
+uint16_t rand_uint16(rand_t *r);
+uint32_t rand_uint32(rand_t *r);
+
+int rand_shuffle(rand_t *r, void *base, size_t nmemb, size_t size);
+
+rand_t *rand_close(rand_t *r);
+__END_DECLS
+
+#endif /* DNET_RAND_H */
diff --git a/ext/dnet/dnet/route.h b/ext/dnet/dnet/route.h
new file mode 100644
index 000000000..74c21419c
--- /dev/null
+++ b/ext/dnet/dnet/route.h
@@ -0,0 +1,35 @@
+/*
+ * route.c
+ *
+ * Kernel route table operations.
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: route.h,v 1.6 2002/02/04 04:02:22 dugsong Exp $
+ */
+
+#ifndef DNET_ROUTE_H
+#define DNET_ROUTE_H
+
+/*
+ * Routing table entry
+ */
+struct route_entry {
+ struct addr route_dst; /* destination address */
+ struct addr route_gw; /* gateway address */
+};
+
+typedef struct route_handle route_t;
+
+typedef int (*route_handler)(const struct route_entry *entry, void *arg);
+
+__BEGIN_DECLS
+route_t *route_open(void);
+int route_add(route_t *r, const struct route_entry *entry);
+int route_delete(route_t *r, const struct route_entry *entry);
+int route_get(route_t *r, struct route_entry *entry);
+int route_loop(route_t *r, route_handler callback, void *arg);
+route_t *route_close(route_t *r);
+__END_DECLS
+
+#endif /* DNET_ROUTE_H */
diff --git a/ext/dnet/dnet/tcp.h b/ext/dnet/dnet/tcp.h
new file mode 100644
index 000000000..008946384
--- /dev/null
+++ b/ext/dnet/dnet/tcp.h
@@ -0,0 +1,158 @@
+/*
+ * tcp.h
+ *
+ * Transmission Control Protocol (RFC 793).
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: tcp.h,v 1.17 2004/02/23 10:02:11 dugsong Exp $
+ */
+
+#ifndef DNET_TCP_H
+#define DNET_TCP_H
+
+#define TCP_HDR_LEN 20 /* base TCP header length */
+#define TCP_OPT_LEN 2 /* base TCP option length */
+#define TCP_OPT_LEN_MAX 40
+#define TCP_HDR_LEN_MAX (TCP_HDR_LEN + TCP_OPT_LEN_MAX)
+
+#ifndef __GNUC__
+# define __attribute__(x)
+# pragma pack(1)
+#endif
+
+/*
+ * TCP header, without options
+ */
+struct tcp_hdr {
+ uint16_t th_sport; /* source port */
+ uint16_t th_dport; /* destination port */
+ uint32_t th_seq; /* sequence number */
+ uint32_t th_ack; /* acknowledgment number */
+#if DNET_BYTESEX == DNET_BIG_ENDIAN
+ uint8_t th_off:4, /* data offset */
+ th_x2:4; /* (unused) */
+#elif DNET_BYTESEX == DNET_LIL_ENDIAN
+ uint8_t th_x2:4,
+ th_off:4;
+#else
+# error "need to include <dnet.h>"
+#endif
+ uint8_t th_flags; /* control flags */
+ uint16_t th_win; /* window */
+ uint16_t th_sum; /* checksum */
+ uint16_t th_urp; /* urgent pointer */
+};
+
+/*
+ * TCP control flags (th_flags)
+ */
+#define TH_FIN 0x01 /* end of data */
+#define TH_SYN 0x02 /* synchronize sequence numbers */
+#define TH_RST 0x04 /* reset connection */
+#define TH_PUSH 0x08 /* push */
+#define TH_ACK 0x10 /* acknowledgment number set */
+#define TH_URG 0x20 /* urgent pointer set */
+#define TH_ECE 0x40 /* ECN echo, RFC 3168 */
+#define TH_CWR 0x80 /* congestion window reduced */
+
+#define TCP_PORT_MAX 65535 /* maximum port */
+#define TCP_WIN_MAX 65535 /* maximum (unscaled) window */
+
+/*
+ * Sequence number comparison macros
+ */
+#define TCP_SEQ_LT(a,b) ((int)((a)-(b)) < 0)
+#define TCP_SEQ_LEQ(a,b) ((int)((a)-(b)) <= 0)
+#define TCP_SEQ_GT(a,b) ((int)((a)-(b)) > 0)
+#define TCP_SEQ_GEQ(a,b) ((int)((a)-(b)) >= 0)
+
+/*
+ * TCP FSM states
+ */
+#define TCP_STATE_CLOSED 0 /* closed */
+#define TCP_STATE_LISTEN 1 /* listening from connection */
+#define TCP_STATE_SYN_SENT 2 /* active, have sent SYN */
+#define TCP_STATE_SYN_RECEIVED 3 /* have sent and received SYN */
+
+#define TCP_STATE_ESTABLISHED 4 /* established */
+#define TCP_STATE_CLOSE_WAIT 5 /* rcvd FIN, waiting for close */
+
+#define TCP_STATE_FIN_WAIT_1 6 /* have closed, sent FIN */
+#define TCP_STATE_CLOSING 7 /* closed xchd FIN, await FIN-ACK */
+#define TCP_STATE_LAST_ACK 8 /* had FIN and close, await FIN-ACK */
+
+#define TCP_STATE_FIN_WAIT_2 9 /* have closed, FIN is acked */
+#define TCP_STATE_TIME_WAIT 10 /* in 2*MSL quiet wait after close */
+#define TCP_STATE_MAX 11
+
+/*
+ * Options (opt_type) - http://www.iana.org/assignments/tcp-parameters
+ */
+#define TCP_OPT_EOL 0 /* end of option list */
+#define TCP_OPT_NOP 1 /* no operation */
+#define TCP_OPT_MSS 2 /* maximum segment size */
+#define TCP_OPT_WSCALE 3 /* window scale factor, RFC 1072 */
+#define TCP_OPT_SACKOK 4 /* SACK permitted, RFC 2018 */
+#define TCP_OPT_SACK 5 /* SACK, RFC 2018 */
+#define TCP_OPT_ECHO 6 /* echo (obsolete), RFC 1072 */
+#define TCP_OPT_ECHOREPLY 7 /* echo reply (obsolete), RFC 1072 */
+#define TCP_OPT_TIMESTAMP 8 /* timestamp, RFC 1323 */
+#define TCP_OPT_POCONN 9 /* partial order conn, RFC 1693 */
+#define TCP_OPT_POSVC 10 /* partial order service, RFC 1693 */
+#define TCP_OPT_CC 11 /* connection count, RFC 1644 */
+#define TCP_OPT_CCNEW 12 /* CC.NEW, RFC 1644 */
+#define TCP_OPT_CCECHO 13 /* CC.ECHO, RFC 1644 */
+#define TCP_OPT_ALTSUM 14 /* alt checksum request, RFC 1146 */
+#define TCP_OPT_ALTSUMDATA 15 /* alt checksum data, RFC 1146 */
+#define TCP_OPT_SKEETER 16 /* Skeeter */
+#define TCP_OPT_BUBBA 17 /* Bubba */
+#define TCP_OPT_TRAILSUM 18 /* trailer checksum */
+#define TCP_OPT_MD5 19 /* MD5 signature, RFC 2385 */
+#define TCP_OPT_SCPS 20 /* SCPS capabilities */
+#define TCP_OPT_SNACK 21 /* selective negative acks */
+#define TCP_OPT_REC 22 /* record boundaries */
+#define TCP_OPT_CORRUPT 23 /* corruption experienced */
+#define TCP_OPT_SNAP 24 /* SNAP */
+#define TCP_OPT_TCPCOMP 26 /* TCP compression filter */
+#define TCP_OPT_MAX 27
+
+#define TCP_OPT_TYPEONLY(type) \
+ ((type) == TCP_OPT_EOL || (type) == TCP_OPT_NOP)
+
+/*
+ * TCP option (following TCP header)
+ */
+struct tcp_opt {
+ uint8_t opt_type; /* option type */
+ uint8_t opt_len; /* option length >= TCP_OPT_LEN */
+ union tcp_opt_data {
+ uint16_t mss; /* TCP_OPT_MSS */
+ uint8_t wscale; /* TCP_OPT_WSCALE */
+ uint16_t sack[19]; /* TCP_OPT_SACK */
+ uint32_t echo; /* TCP_OPT_ECHO{REPLY} */
+ uint32_t timestamp[2]; /* TCP_OPT_TIMESTAMP */
+ uint32_t cc; /* TCP_OPT_CC{NEW,ECHO} */
+ uint8_t cksum; /* TCP_OPT_ALTSUM */
+ uint8_t md5[16]; /* TCP_OPT_MD5 */
+ uint8_t data8[TCP_OPT_LEN_MAX - TCP_OPT_LEN];
+ } opt_data;
+} __attribute__((__packed__));
+
+#ifndef __GNUC__
+# pragma pack()
+#endif
+
+#define tcp_pack_hdr(hdr, sport, dport, seq, ack, flags, win, urp) do { \
+ struct tcp_hdr *tcp_pack_p = (struct tcp_hdr *)(hdr); \
+ tcp_pack_p->th_sport = htons(sport); \
+ tcp_pack_p->th_dport = htons(dport); \
+ tcp_pack_p->th_seq = htonl(seq); \
+ tcp_pack_p->th_ack = htonl(ack); \
+ tcp_pack_p->th_x2 = 0; tcp_pack_p->th_off = 5; \
+ tcp_pack_p->th_flags = flags; \
+ tcp_pack_p->th_win = htons(win); \
+ tcp_pack_p->th_urp = htons(urp); \
+} while (0)
+
+#endif /* DNET_TCP_H */
diff --git a/ext/dnet/dnet/udp.h b/ext/dnet/dnet/udp.h
new file mode 100644
index 000000000..73839a92a
--- /dev/null
+++ b/ext/dnet/dnet/udp.h
@@ -0,0 +1,32 @@
+/*
+ * udp.h
+ *
+ * User Datagram Protocol (RFC 768).
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * $Id: udp.h,v 1.8 2002/04/02 05:05:39 dugsong Exp $
+ */
+
+#ifndef DNET_UDP_H
+#define DNET_UDP_H
+
+#define UDP_HDR_LEN 8
+
+struct udp_hdr {
+ uint16_t uh_sport; /* source port */
+ uint16_t uh_dport; /* destination port */
+ uint16_t uh_ulen; /* udp length (including header) */
+ uint16_t uh_sum; /* udp checksum */
+};
+
+#define UDP_PORT_MAX 65535
+
+#define udp_pack_hdr(hdr, sport, dport, ulen) do { \
+ struct udp_hdr *udp_pack_p = (struct udp_hdr *)(hdr); \
+ udp_pack_p->uh_sport = htons(sport); \
+ udp_pack_p->uh_dport = htons(dport); \
+ udp_pack_p->uh_ulen = htons(ulen); \
+} while (0)
+
+#endif /* DNET_UDP_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-26 12:33:37 +0000