--- embedaddon/dnsmasq/src/dns-protocol.h 2013/07/29 19:37:40 1.1.1.1 +++ embedaddon/dnsmasq/src/dns-protocol.h 2016/11/02 09:57:01 1.1.1.3 @@ -1,4 +1,4 @@ -/* dnsmasq is Copyright (c) 2000-2013 Simon Kelley +/* dnsmasq is Copyright (c) 2000-2016 Simon Kelley This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -16,6 +16,7 @@ #define NAMESERVER_PORT 53 #define TFTP_PORT 69 +#define MAX_PORT 65535u #define IN6ADDRSZ 16 #define INADDRSZ 4 @@ -36,44 +37,70 @@ #define C_IN 1 /* the arpa internet */ #define C_CHAOS 3 /* for chaos net (MIT) */ +#define C_HESIOD 4 /* hesiod */ #define C_ANY 255 /* wildcard match */ #define T_A 1 -#define T_NS 2 +#define T_NS 2 +#define T_MD 3 +#define T_MF 4 #define T_CNAME 5 #define T_SOA 6 +#define T_MB 7 +#define T_MG 8 +#define T_MR 9 #define T_PTR 12 +#define T_MINFO 14 #define T_MX 15 #define T_TXT 16 +#define T_RP 17 +#define T_AFSDB 18 +#define T_RT 21 #define T_SIG 24 +#define T_PX 26 #define T_AAAA 28 +#define T_NXT 30 #define T_SRV 33 #define T_NAPTR 35 +#define T_KX 36 +#define T_DNAME 39 #define T_OPT 41 +#define T_DS 43 +#define T_RRSIG 46 +#define T_NSEC 47 +#define T_DNSKEY 48 +#define T_NSEC3 50 #define T_TKEY 249 #define T_TSIG 250 #define T_AXFR 252 #define T_MAILB 253 #define T_ANY 255 +#define EDNS0_OPTION_MAC 65001 /* dyndns.org temporary assignment */ +#define EDNS0_OPTION_CLIENT_SUBNET 8 /* IANA */ +#define EDNS0_OPTION_NOMDEVICEID 65073 /* Nominum temporary assignment */ +#define EDNS0_OPTION_NOMCPEID 65074 /* Nominum temporary assignment */ + struct dns_header { u16 id; u8 hb3,hb4; u16 qdcount,ancount,nscount,arcount; }; -#define HB3_QR 0x80 +#define HB3_QR 0x80 /* Query */ #define HB3_OPCODE 0x78 -#define HB3_AA 0x04 -#define HB3_TC 0x02 -#define HB3_RD 0x01 +#define HB3_AA 0x04 /* Authoritative Answer */ +#define HB3_TC 0x02 /* TrunCated */ +#define HB3_RD 0x01 /* Recursion Desired */ -#define HB4_RA 0x80 -#define HB4_AD 0x20 -#define HB4_CD 0x10 +#define HB4_RA 0x80 /* Recursion Available */ +#define HB4_AD 0x20 /* Authenticated Data */ +#define HB4_CD 0x10 /* Checking Disabled */ #define HB4_RCODE 0x0f #define OPCODE(x) (((x)->hb3 & HB3_OPCODE) >> 3) +#define SET_OPCODE(x, code) (x)->hb3 = ((x)->hb3 & ~HB3_OPCODE) | code + #define RCODE(x) ((x)->hb4 & HB4_RCODE) #define SET_RCODE(x, code) (x)->hb4 = ((x)->hb4 & ~HB4_RCODE) | code @@ -113,3 +140,16 @@ struct dns_header { (cp) += 4; \ } +#define CHECK_LEN(header, pp, plen, len) \ + ((size_t)((pp) - (unsigned char *)(header) + (len)) <= (plen)) + +#define ADD_RDLEN(header, pp, plen, len) \ + (!CHECK_LEN(header, pp, plen, len) ? 0 : (((pp) += (len)), 1)) + +/* Escape character in our presentation format for names. + Cannot be '.' or /000 and must be !isprint(). + Note that escaped chars are stored as + + to ensure that the escaped form of /000 doesn't include /000 +*/ +#define NAME_ESCAPE 1