// IP packet structures...
// -----------------------
// Note: All of this is hard coded little endian!
typedef long n_long;
typedef long n_time;
struct ip
{
unsigned int ip_hl:4; /* header length */
unsigned int ip_v:4; /* version */
u_char ip_tos; /* type of service */
u_short ip_len; /* total length */
u_short ip_id; /* identification */
u_short ip_off; /* fragment offset field */
#define IP_RF 0x8000 /* reserved fragment flag */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
u_char ip_ttl; /* time to live */
u_char ip_p; /* protocol */
u_short ip_sum; /* checksum */
struct in_addr ip_src, ip_dst; /* source and dest address */
};
#define MAX_IPOPTLEN 40
/*
* IEEE 802.3 Ethernet magic constants. The frame sizes omit the preamble
* and FCS/CRC (frame check sequence).
*/
#define ETH_ALEN 6 /* Octets in one ethernet addr */
#define ETH_HLEN 14 /* Total octets in header. */
#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
#define ETH_DATA_LEN 1500 /* Max. octets in payload */
#define ETH_FRAME_LEN 1514 /* Max. octets in frame sans FCS */
/*
* These are the defined Ethernet Protocol ID's.
*/
#define ETH_P_LOOP 0x0060 /* Ethernet Loopback packet */
#define ETH_P_ECHO 0x0200 /* Ethernet Echo packet */
#define ETH_P_PUP 0x0400 /* Xerox PUP packet */
#define ETH_P_IP 0x0800 /* Internet Protocol packet */
#define ETH_P_X25 0x0805 /* CCITT X.25 */
#define ETH_P_ARP 0x0806 /* Address Resolution packet */
#define ETH_P_BPQ 0x08FF /* G8BPQ AX.25 Ethernet Packet [ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_DEC 0x6000 /* DEC Assigned proto */
#define ETH_P_DNA_DL 0x6001 /* DEC DNA Dump/Load */
#define ETH_P_DNA_RC 0x6002 /* DEC DNA Remote Console */
#define ETH_P_DNA_RT 0x6003 /* DEC DNA Routing */
#define ETH_P_LAT 0x6004 /* DEC LAT */
#define ETH_P_DIAG 0x6005 /* DEC Diagnostics */
#define ETH_P_CUST 0x6006 /* DEC Customer use */
#define ETH_P_SCA 0x6007 /* DEC Systems Comms Arch */
#define ETH_P_RARP 0x8035 /* Reverse Addr Res packet */
#define ETH_P_ATALK 0x809B /* Appletalk DDP */
#define ETH_P_AARP 0x80F3 /* Appletalk AARP */
#define ETH_P_IPX 0x8137 /* IPX over DIX */
#define ETH_P_IPV6 0x86DD /* IPv6 over bluebook */
/*
* Non DIX types. Won't clash for 1500 types.
*/
#define ETH_P_802_3 0x0001 /* Dummy type for 802.3 frames */
#define ETH_P_AX25 0x0002 /* Dummy protocol id for AX.25 */
#define ETH_P_ALL 0x0003 /* Every packet (be careful!!!) */
#define ETH_P_802_2 0x0004 /* 802.2 frames */
#define ETH_P_SNAP 0x0005 /* Internal only */
#define ETH_P_DDCMP 0x0006 /* DEC DDCMP: Internal only */
#define ETH_P_WAN_PPP 0x0007 /* Dummy type for WAN PPP frames*/
#define ETH_P_PPP_MP 0x0008 /* Dummy type for PPP MP frames */
#define ETH_P_LOCALTALK 0x0009 /* Localtalk pseudo type */
#define ETH_P_PPPTALK 0x0010 /* Dummy type for Atalk over PPP*/
#define ETH_P_TR_802_2 0x0011 /* 802.2 frames */
struct etherproto {
char *s;
u_short p;
};
extern struct etherproto etherproto_db[];
// Ethernet Header
struct ether_header
{
unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
unsigned char h_source[ETH_ALEN]; /* source ether addr */
unsigned short h_proto; /* packet type ID field */
};
// ARP/RARP
///////////////////////////////////////////////////////////////////////
static u_char bcastaddr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
/*
* This structure defines an ethernet arp header.
*/
struct arphdr
{
unsigned short ar_hrd; /* format of hardware address */
unsigned short ar_pro; /* format of protocol address */
unsigned char ar_hln; /* length of hardware address */
unsigned char ar_pln; /* length of protocol address */
unsigned short ar_op; /* ARP opcode (command) */
};
#define ARPD_UPDATE 0x01
#define ARPD_LOOKUP 0x02
#define ARPD_FLUSH 0x03
/*#define ARPHRD_ETHER 0x01
#define ARPOP_REQUEST 0x01
#define ARPOP_REPLY 0x02
#define ARPOP_REVREQUEST 0x03
#define ARPOP_REVREPLY 0x04
*/
/*
* Ethernet Address Resolution Protocol.
*
* See RFC 826 for protocol description. Structure below is adapted
* to resolving internet addresses. Field names used correspond to
* RFC 826.
*/
struct ether_arp {
struct arphdr ea_hdr; /* fixed-size header */
u_char arp_sha[ETH_ALEN]; /* sender hardware address */
u_char arp_spa[4]; /* sender protocol address */
u_char arp_tha[ETH_ALEN]; /* target hardware address */
u_char arp_tpa[4]; /* target protocol address */
};
#define arp_hrd ea_hdr.ar_hrd
#define arp_pro ea_hdr.ar_pro
#define arp_hln ea_hdr.ar_hln
#define arp_pln ea_hdr.ar_pln
#define arp_op ea_hdr.ar_op
// IP Header in Little Endian
//////////////////////////////
struct iphdr {
u_char ip_hl:4, /* header length */
ip_v:4; /* version */
u_char ip_tos; /* type of service */
short ip_len; /* total length */
u_short ip_id; /* identification */
short ip_off; /* fragment offset field */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
u_char ip_ttl; /* time to live */
u_char ip_p; /* protocol */
u_short ip_sum; /* checksum */
struct in_addr ip_src,ip_dst; /* source and dest address */
};
#define IP_MAXPACKET 65535 /* maximum packet size */
// Definitions for options.
#define IPOPT_COPIED(o) ((o)&0x80)
#define IPOPT_CLASS(o) ((o)&0x60)
#define IPOPT_NUMBER(o) ((o)&0x1f)
#define IPOPT_CONTROL 0x00
#define IPOPT_RESERVED1 0x20
#define IPOPT_DEBMEAS 0x40
#define IPOPT_RESERVED2 0x60
#define IPOPT_EOL 0 /* end of option list */
#define IPOPT_NOP 1 /* no operation */
#define IPOPT_RR 7 /* record packet route */
#define IPOPT_TS 68 /* timestamp */
#define IPOPT_SECURITY 130 /* provide s,c,h,tcc */
#define IPOPT_LSRR 131 /* loose source route */
#define IPOPT_SATID 136 /* satnet id */
#define IPOPT_SSRR 137 /* strict source route */
// Time stamp option structure.
struct ip_timestamp {
u_char ipt_code; /* IPOPT_TS */
u_char ipt_len; /* size of structure (variable) */
u_char ipt_ptr; /* index of current entry */
u_char ipt_flg:4, /* flags, see below */
ipt_oflw:4; /* overflow counter */
union ipt_timestamp {
n_long ipt_time[1];
struct ipt_ta {
struct in_addr ipt_addr;
n_long ipt_time;
} ipt_ta[1];
} ipt_timestamp;
};
/* flag bits for ipt_flg */
#define IPOPT_TS_TSONLY 0 /* timestamps only */
#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */
#define IPOPT_TS_PRESPEC 2 /* specified modules only */
/* bits for security (not byte swapped) */
#define IPOPT_SECUR_UNCLASS 0x0000
#define IPOPT_SECUR_CONFID 0xf135
#define IPOPT_SECUR_EFTO 0x789a
#define IPOPT_SECUR_MMMM 0xbc4d
#define IPOPT_SECUR_RESTR 0xaf13
#define IPOPT_SECUR_SECRET 0xd788
#define IPOPT_SECUR_TOPSECRET 0x6bc5
// ICMP Header
////////////////////////////////////////////////////////////////////////
//struct icmphdr {
// u_char icmp_type; /* type of message, see below */
// u_char icmp_code; /* type sub code */
// u_short icmp_cksum; /* ones complement cksum of struct */
// union {
// u_char ih_pptr; /* ICMP_PARAMPROB */
// struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
// struct ih_idseq {
// n_short icd_id;
// n_short icd_seq;
// } ih_idseq;
// int ih_void;
// } icmp_hun;
//#define icmp_pptr icmp_hun.ih_pptr
//#define icmp_gwaddr icmp_hun.ih_gwaddr
//#define icmp_id icmp_hun.ih_idseq.icd_id
//#define icmp_seq icmp_hun.ih_idseq.icd_seq
//#define icmp_void icmp_hun.ih_void
// union {
// struct id_ts {
// n_time its_otime;
// n_time its_rtime;
// n_time its_ttime;
// } id_ts;
// struct id_ip {
// struct iphdr idi_ip;
// /* options and then 64 bits of data */
// } id_ip;
// u_long id_mask;
// char id_data[1];
// } icmp_dun;
//#define icmp_otime icmp_dun.id_ts.its_otime
//#define icmp_rtime icmp_dun.id_ts.its_rtime
//#define icmp_ttime icmp_dun.id_ts.its_ttime
//#define icmp_ip icmp_dun.id_ip.idi_ip
//#define icmp_mask icmp_dun.id_mask
//#define icmp_data icmp_dun.id_data
//};
//typedef struct icmp_hdr icmp;
/*
* Lower bounds on packet lengths for various types.
* For the error advice packets must first insure that the
* packet is large enought to contain the returned ip header.
* Only then can we do the check to see if 64 bits of packet
* data have been returned, since we need to check the returned
* ip header length.
*/
#define ICMP_MINLEN 8 /* abs minimum */
#define ICMP_TSLEN (8 + 3 * sizeof (n_time)) /* timestamp */
#define ICMP_MASKLEN 12 /* address mask */
#define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
#define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
/* N.B.: must separately check that ip_hl >= 5 */
/*
* Definition of type and code field values.
*/
#define ICMP_ECHOREPLY 0 /* echo reply */
/* UNREACH codes */
#define ICMP_UNREACH 3 /* dest unreachable, codes: */
#define ICMP_UNREACH_NET 0 /* bad net */
#define ICMP_UNREACH_HOST 1 /* bad host */
#define ICMP_UNREACH_PROTOCOL 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 /* net denied */
#define ICMP_UNREACH_HOST_PROHIB 10 /* host denied */
#define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
#define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
#define ICMP_UNREACH_FILTER_PROHIB 13 /* admin prohib */
#define ICMP_UNREACH_HOST_PRECEDENCE 14 /* host prec vio. */
#define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 /* prec cutoff */
#define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
#define ICMP_ROUTERADVERT 9 /* router advertisement */
#define ICMP_ROUTERSOLICIT 10 /* router solicitation */
#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_ECHO 8 /* echo service */
#define ICMP_TIMXCEED 11 /* time exceeded, code: */
#define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
#define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
#define ICMP_PARAMPROB 12 /* ip header bad */
#define ICMP_TSTAMP 13 /* timestamp request */
#define ICMP_TSTAMPREPLY 14 /* timestamp reply */
#define ICMP_IREQ 15 /* information request */
#define ICMP_IREQREPLY 16 /* information reply */
#define ICMP_MASKREQ 17 /* address mask request */
#define ICMP_MASKREPLY 18 /* address mask reply */
#define ICMP_MAXTYPE 18
#define ICMP_INFOTYPE(type) \
((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
(type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
(type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
(type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
/*** ICMP types ********************************************************/
#define ICMP_TYPE_0 "Echo reply"
#define ICMP_TYPE_3 "Destination unreachable"
#define ICMP_TYPE_4 "Source quench"
#define ICMP_TYPE_5 "Redirect"
#define ICMP_TYPE_8 "Echo"
#define ICMP_TYPE_11 "Time exceeded"
#define ICMP_TYPE_12 "Parameter problem"
#define ICMP_TYPE_13 "Timestamp"
#define ICMP_TYPE_14 "Timestamp reply"
#define ICMP_TYPE_15 "Information request"
#define ICMP_TYPE_16 "Information reply"
#define ICMP_TYPE_17 "Address mask request"
#define ICMP_TYPE_18 "Adress mask reply"
/* pulled token stuff from tcpdump */
struct tok {
int v; /* value */
char *s; /* string */
};
// TCP
/////////////////////////////////////////////////////////////////////////
typedef u_long tcp_seq;
// TCP header. Per RFC 793, September, 1981. In Little Endian
struct tcphdr {
u_short th_sport; /* source port */
u_short th_dport; /* destination port */
tcp_seq th_seq; /* sequence number */
tcp_seq th_ack; /* acknowledgement number */
u_char th_x2:4, /* (unused) */
th_off:4; /* data offset */
u_char th_flags;
#define TH_FIN 0x01
#define TH_SYN 0x02
#define TH_RST 0x04
#define TH_PSH 0x08
#define TH_PUSH 0x08
#define TH_ACK 0x10
#define TH_URG 0x20
#define TH_ECE 0x40
#define TH_CWR 0x80
u_short th_win; /* window */
u_short th_sum; /* checksum */
u_short th_urp; /* urgent pointer */
};
#define TCPOPT_EOL 0
#define TCPOPT_NOP 1
#define TCPOPT_MAXSEG 2
enum {
TCP_ESTABLISHED = 1,
TCP_SYN_SENT,
TCP_SYN_RECV,
TCP_FIN_WAIT1,
TCP_FIN_WAIT2,
TCP_TIME_WAIT,
TCP_CLOSE,
TCP_CLOSE_WAIT,
TCP_LAST_ACK,
TCP_LISTEN,
TCP_CLOSING /* now a valid state */
};
// UDP Header
//////////////////////////////////////////////////////////////////////////////
struct udphdr {
unsigned short source;
unsigned short dest;
unsigned short len;
unsigned short check;
};
// Netbios/SAMBA
//////////////////////////////////////////////////////////////////////////////
/* the basic packet size, assuming no words or bytes */
#define smb_size 39
/* offsets into message for common items */
#define smb_com 8
#define smb_rcls 9
#define smb_reh 10
#define smb_err 11
#define smb_flg 13
#define smb_flg2 14
#define smb_reb 13
#define smb_tid 28
#define smb_pid 30
#define smb_uid 32
#define smb_mid 34
#define smb_wct 36
#define smb_vwv 37
#define smb_vwv0 37
#define smb_vwv1 39
#define smb_vwv2 41
#define smb_vwv3 43
#define smb_vwv4 45
#define smb_vwv5 47
#define smb_vwv6 49
#define smb_vwv7 51
#define smb_vwv8 53
#define smb_vwv9 55
#define smb_vwv10 57
#define smb_vwv11 59
#define smb_vwv12 61
#define smb_vwv13 63
#define smb_vwv14 65
#define smb_vwv15 67
#define smb_vwv16 69
#define smb_vwv17 71
/* the complete */
#define SMBmkdir 0x00 /* create directory */
#define SMBrmdir 0x01 /* delete directory */
#define SMBopen 0x02 /* open file */
#define SMBcreate 0x03 /* create file */
#define SMBclose 0x04 /* close file */
#define SMBflush 0x05 /* flush file */
#define SMBunlink 0x06 /* delete file */
#define SMBmv 0x07 /* rename file */
#define SMBgetatr 0x08 /* get file attributes */
#define SMBsetatr 0x09 /* set file attributes */
#define SMBread 0x0A /* read from file */
#define SMBwrite 0x0B /* write to file */
#define SMBlock 0x0C /* lock byte range */
#define SMBunlock 0x0D /* unlock byte range */
#define SMBctemp 0x0E /* create temporary file */
#define SMBmknew 0x0F /* make new file */
#define SMBchkpth 0x10 /* check directory path */
#define SMBexit 0x11 /* process exit */
#define SMBlseek 0x12 /* seek */
#define SMBtcon 0x70 /* tree connect */
#define SMBtconX 0x75 /* tree connect and X*/
#define SMBtdis 0x71 /* tree disconnect */
#define SMBnegprot 0x72 /* negotiate protocol */
#define SMBdskattr 0x80 /* get disk attributes */
#define SMBsearch 0x81 /* search directory */
#define SMBsplopen 0xC0 /* open print spool file */
#define SMBsplwr 0xC1 /* write to print spool file */
#define SMBsplclose 0xC2 /* close print spool file */
#define SMBsplretq 0xC3 /* return print queue */
#define SMBsends 0xD0 /* send single block message */
#define SMBsendb 0xD1 /* send broadcast message */
#define SMBfwdname 0xD2 /* forward user name */
#define SMBcancelf 0xD3 /* cancel forward */
#define SMBgetmac 0xD4 /* get machine name */
#define SMBsendstrt 0xD5 /* send start of multi-block message */
#define SMBsendend 0xD6 /* send end of multi-block message */
#define SMBsendtxt 0xD7 /* send text of multi-block message */
/* Core+ protocol */
#define SMBlockread 0x13 /* Lock a range and read */
#define SMBwriteunlock 0x14 /* Unlock a range then write */
#define SMBreadbraw 0x1a /* read a block of data with no smb header */
#define SMBwritebraw 0x1d /* write a block of data with no smb header */
#define SMBwritec 0x20 /* secondary write request */
#define SMBwriteclose 0x2c /* write a file then close it */
/* dos extended protocol */
#define SMBreadBraw 0x1A /* read block raw */
#define SMBreadBmpx 0x1B /* read block multiplexed */
#define SMBreadBs 0x1C /* read block (secondary response) */
#define SMBwriteBraw 0x1D /* write block raw */
#define SMBwriteBmpx 0x1E /* write block multiplexed */
#define SMBwriteBs 0x1F /* write block (secondary request) */
#define SMBwriteC 0x20 /* write complete response */
#define SMBsetattrE 0x22 /* set file attributes expanded */
#define SMBgetattrE 0x23 /* get file attributes expanded */
#define SMBlockingX 0x24 /* lock/unlock byte ranges and X */
#define SMBtrans 0x25 /* transaction - name, bytes in/out */
#define SMBtranss 0x26 /* transaction (secondary request/response) */
#define SMBioctl 0x27 /* IOCTL */
#define SMBioctls 0x28 /* IOCTL (secondary request/response) */
#define SMBcopy 0x29 /* copy */
#define SMBmove 0x2A /* move */
#define SMBecho 0x2B /* echo */
#define SMBopenX 0x2D /* open and X */
#define SMBreadX 0x2E /* read and X */
#define SMBwriteX 0x2F /* write and X */
#define SMBsesssetupX 0x73 /* Session Set Up & X (including User Logon) */
#define SMBffirst 0x82 /* find first */
#define SMBfunique 0x83 /* find unique */
#define SMBfclose 0x84 /* find close */
#define SMBinvalid 0xFE /* invalid command */
/* Extended 2.0 protocol */
#define SMBtrans2 0x32 /* TRANS2 protocol set */
#define SMBtranss2 0x33 /* TRANS2 protocol set, secondary command */
#define SMBfindclose 0x34 /* Terminate a TRANSACT2_FINDFIRST */
#define SMBfindnclose 0x35 /* Terminate a TRANSACT2_FINDNOTIFYFIRST */
#define SMBulogoffX 0x74 /* user logoff */
/* these are the TRANS2 sub commands */
#define TRANSACT2_OPEN 0
#define TRANSACT2_FINDFIRST 1
#define TRANSACT2_FINDNEXT 2
#define TRANSACT2_QFSINFO 3
#define TRANSACT2_SETFSINFO 4
#define TRANSACT2_QPATHINFO 5
#define TRANSACT2_SETPATHINFO 6
#define TRANSACT2_QFILEINFO 7
#define TRANSACT2_SETFILEINFO 8
#define TRANSACT2_FSCTL 9
#define TRANSACT2_IOCTL 10
#define TRANSACT2_FINDNOTIFYFIRST 11
#define TRANSACT2_FINDNOTIFYNEXT 12
#define TRANSACT2_MKDIR 13
/* these are the trans2 sub fields for primary requests */
#define smb_tpscnt smb_vwv0
#define smb_tdscnt smb_vwv1
#define smb_mprcnt smb_vwv2
#define smb_mdrcnt smb_vwv3
#define smb_msrcnt smb_vwv4
#define smb_flags smb_vwv5
#define smb_timeout smb_vwv6
#define smb_pscnt smb_vwv9
#define smb_psoff smb_vwv10
#define smb_dscnt smb_vwv11
#define smb_dsoff smb_vwv12
#define smb_suwcnt smb_vwv13
#define smb_setup smb_vwv14
#define smb_setup0 smb_setup
#define smb_setup1 (smb_setup+2)
#define smb_setup2 (smb_setup+4)
/* these are for the secondary requests */
#define smb_spscnt smb_vwv2
#define smb_spsoff smb_vwv3
#define smb_spsdisp smb_vwv4
#define smb_sdscnt smb_vwv5
#define smb_sdsoff smb_vwv6
#define smb_sdsdisp smb_vwv7
#define smb_sfid smb_vwv8
/* and these for responses */
#define smb_tprcnt smb_vwv0
#define smb_tdrcnt smb_vwv1
#define smb_prcnt smb_vwv3
#define smb_proff smb_vwv4
#define smb_prdisp smb_vwv5
#define smb_drcnt smb_vwv6
#define smb_droff smb_vwv7
#define smb_drdisp smb_vwv8
/* where to find the base of the SMB packet proper */
#define smb_base(buf) (((char *)(buf))+4)
#define SUCCESS 0 /* The request was successful. */
#define ERRDOS 0x01 /* Error is from the core DOS operating system set. */
#define ERRSRV 0x02 /* Error is generated by the server network file manager.*/
#define ERRHRD 0x03 /* Error is an hardware error. */
#define ERRCMD 0xFF /* Command was not in the "SMB" format. */
/* structure used to hold the incoming hosts info */
struct from_host {
char *name; /* host name */
char *addr; /* host address */
struct sockaddr_in *sin; /* their side of the link */
};
#define MAX_DGRAM_SIZE 576
#define MIN_DGRAM_SIZE 12
#define NMB_PORT 137
#define DGRAM_PORT 138
#define SMB_PORT 139
enum name_source {LMHOSTS, REGISTER, SELF, DNS, DNSFAIL};
enum node_type {B_NODE=0, P_NODE=1, M_NODE=2, NBDD_NODE=3};
enum packet_type {NMB_PACKET, DGRAM_PACKET};
/* a netbios name structure */
struct nmb_name {
char name[17];
char scope[64];
int name_type;
};
/* a resource record */
struct res_rec {
struct nmb_name rr_name;
int rr_type;
int rr_class;
int ttl;
int rdlength;
char rdata[MAX_DGRAM_SIZE];
};
/* define a nmb packet. */
struct nmb_packet
{
struct {
int name_trn_id;
int opcode;
BOOL response;
struct {
BOOL bcast;
BOOL recursion_available;
BOOL recursion_desired;
BOOL trunc;
BOOL authoritative;
} nm_flags;
int rcode;
int qdcount;
int ancount;
int nscount;
int arcount;
} header;
struct {
struct nmb_name question_name;
int question_type;
int question_class;
} question;
struct res_rec *answers;
struct res_rec *nsrecs;
struct res_rec *additional;
};
/* rfc1191 */
struct mtu_discovery {
short unused;
short nexthopmtu;
};
#define EXTRACT_SHORT(p) ((u_short)ntohs(*(u_short *)p))
#define EXTRACT_LONG(p) (ntohl(*(u_int32 *)p))
/* pulled from tcpdump */
/* XXX probably should use getservbyname() and cache answers */
#define TFTP_PORT 69 /*XXX*/
#define NAMESERVER_PORT 53
#define KERBEROS_PORT 88 /*XXX*/
#define SUNRPC_PORT 111 /*XXX*/
#define SNMP_PORT 161 /*XXX*/
#define NTP_PORT 123 /*XXX*/
#define SNMPTRAP_PORT 162 /*XXX*/
#define RIP_PORT 520 /*XXX*/
#define KERBEROS_SEC_PORT 750 /*XXX*/
/* TICK_TIME in ms
* time to wait between Read Requests
* if no packet has been sniffed..
*/
#define TICK_TIME 10
#define OUR_IP (gOurIP ? gOurIP : rkGetOurIP())
#define OUR_MAC (gOurMAC ? gOurMAC : rkGetOurMAC())
#define MAXHOSTNAMELEN 64 /* max length of hostname */
typedef struct _RIPDERM {
char *mBuf;
int mLen;
} RIPDERM, *PRIPDERM;
//typedef list<PRIPDERM> VRIP;
//typedef list<char *> NAMELIST;
//typedef map<unsigned long, NAMELIST *> LMHOSTLIST;
//typedef map<unsigned long, __int64> MACMAP; /* note that masking is required */
//void SendThruFilterRaw(const char * p, int len);
//void SendHex(char *theAsciiString);
//void SendRaw(const char * theData, int theLen);