#include <mp.h>#include <libsec.h>#include <stdio.h>#pragma	varargck	argpos	error	1 /* File names */#define HOSTKEYPRIV	"/sys/lib/ssh/hostkey.secret"#define HOSTKEYPUB	"/sys/lib/ssh/hostkey.public" /*Debugging only:#define HOSTKEYPRIV	"./hostkey.secret"#define HOSTKEYPUB	"./hostkey.public" */ #define HOSTKEYRING	"/sys/lib/ssh/keyring" #define PROTSTR	"SSH-1.5-"#define PROTVSN	"Plan9"  #define DBG			0x01#define DBG_CRYPTO	0x02#define DBG_PACKET	0x04#define DBG_AUTH	0x08#define DBG_PROC	0x10#define DBG_PROTO	0x20#define DBG_IO		0x40#define DBG_SCP		0x80 extern char *progname; #define SSH_MSG_NONE							0#define SSH_MSG_DISCONNECT						1#define SSH_SMSG_PUBLIC_KEY						2#define SSH_CMSG_SESSION_KEY					3#define SSH_CMSG_USER							4#define SSH_CMSG_AUTH_RHOSTS					5#define SSH_CMSG_AUTH_RSA						6#define SSH_SMSG_AUTH_RSA_CHALLENGE				7#define SSH_CMSG_AUTH_RSA_RESPONSE				8#define SSH_CMSG_AUTH_PASSWORD					9#define SSH_CMSG_REQUEST_PTY					10#define SSH_CMSG_WINDOW_SIZE					11#define SSH_CMSG_EXEC_SHELL						12#define SSH_CMSG_EXEC_CMD						13#define SSH_SMSG_SUCCESS						14#define SSH_SMSG_FAILURE						15#define SSH_CMSG_STDIN_DATA						16#define SSH_SMSG_STDOUT_DATA					17#define SSH_SMSG_STDERR_DATA					18#define SSH_CMSG_EOF							19#define SSH_SMSG_EXITSTATUS						20#define SSH_MSG_CHANNEL_OPEN_CONFIRMATION		21#define SSH_MSG_CHANNEL_OPEN_FAILURE			22#define SSH_MSG_CHANNEL_DATA					23#define SSH_MSG_CHANNEL_CLOSE					24#define SSH_MSG_CHANNEL_CLOSE_CONFIRMATION		25/*	(OBSOLETED; was unix-domain X11 forwarding)	26 */#define SSH_SMSG_X11_OPEN						27#define SSH_CMSG_PORT_FORWARD_REQUEST			28#define SSH_MSG_PORT_OPEN						29#define SSH_CMSG_AGENT_REQUEST_FORWARDING		30#define SSH_SMSG_AGENT_OPEN						31#define SSH_MSG_IGNORE							32#define SSH_CMSG_EXIT_CONFIRMATION				33#define SSH_CMSG_X11_REQUEST_FORWARDING			34#define SSH_CMSG_AUTH_RHOSTS_RSA				35#define SSH_MSG_DEBUG							36#define SSH_CMSG_REQUEST_COMPRESSION			37#define SSH_CMSG_MAX_PACKET_SIZE				38#define SSH_CMSG_AUTH_TIS						39#define SSH_SMSG_AUTH_TIS_CHALLENGE				40#define SSH_CMSG_AUTH_TIS_RESPONSE				41#define SSH_CMSG_AUTH_KERBEROS					42#define SSH_SMSG_AUTH_KERBEROS_RESPONSE			43#define SSH_CMSG_HAVE_KERBEROS_TGT				44 #define SSH_CIPHER_NONE							0#define SSH_CIPHER_IDEA							1#define SSH_CIPHER_DES							2#define SSH_CIPHER_3DES							3#define SSH_CIPHER_TSS							4#define SSH_CIPHER_RC4							5 extern char	*cipher_names[]; #define SSH_AUTH_RHOSTS							1#define SSH_AUTH_RSA							2#define SSH_AUTH_PASSWORD						3#define SSH_AUTH_RHOSTS_RSA						4#define SSH_AUTH_TIS							5#define SSH_AUTH_USER_RSA						6 extern char	*auth_names[]; #define SSH_PROTOCOL_SCREEN_NUMBER				1#define SSH_PROTOCOL_HOST_IN_FWD_OPEN			2 typedef struct Packet {	uchar	*pos;	/* position in packet (while reading or writing */	ulong	length;	/* output: #bytes before pos, input: #bytes after pos */	uchar	pad[8];	uchar	type;	uchar	data[1];} Packet; #define SSH_MAX_DATA	262144	/* smallest allowed maximum packet size */#define SSH_MAX_MSG	SSH_MAX_DATA+4 #define SESSION_KEY_LENGTH						32#define SESSION_ID_LENGTH 						MD5dlen /* Used by both */extern uchar		session_key[SESSION_KEY_LENGTH];extern uchar		session_id[SESSION_ID_LENGTH];extern uchar		session_cipher;	/* Cipher used for data encryption */ extern int		encryption;extern int		compression;extern int		DEBUG;extern int		doabort; extern char		passwd[256]; extern int	dfdin, dfdout;	/* The all-important file descriptors */ enum {	c2s, s2c}; enum {	key_ok, key_wrong, key_notfound, key_file}; /* misc.c */void			error(char *, ...);void			debug(int, char *, ...);void			debugbig(int, mpint*, char);void*			mmalloc(int);void*			zalloc(int);void			printbig(int, mpint*, int, char);void			printpublickey(int, RSApub *);void			printdecpublickey(int, RSApub *);void			printsecretkey(int, RSApriv *);int			readsecretkey(FILE *, RSApriv *);int			readpublickey(FILE *, RSApub *);void			comp_sess_id(mpint*, mpint*, uchar *, uchar *);void			RSApad(uchar *, int, uchar *, int);mpint*			RSAunpad(mpint*, int);mpint*			RSAEncrypt(mpint*, RSApub*);mpint*			RSADecrypt(mpint*, RSApriv*);int			verify_key(char *, RSApub *, char *);int			replace_key(char *, RSApub *, char *);int			isatty(int);void			getdomainname(char*, char*, int);void			mptobuf(mpint*, uchar*, int); /* packet.c */void			mkcrctab(ulong);Packet*			getpacket(int);int			putpacket(Packet *, int);void			preparekey(void);void			mfree(Packet *); ulong			getlong(Packet *);RSApub*			getRSApublic(Packet *);ulong			getlong(Packet *);ushort			getshort(Packet *);uchar			getbyte(Packet *);void			getbytes(Packet *, uchar *, int);mpint*			getBigInt(Packet *);int			getstring(Packet *, char *, int); void			putlong(Packet *, ulong);void			putshort(Packet *, ushort);void			putbyte(Packet *, uchar);void			putbytes(Packet *, uchar *, int);void			putBigInt(Packet *, mpint*);void			putRSApublic(Packet *, RSApub *);void			putstring(Packet *, char *, int);  /* messages.c */void			get_ssh_smsg_public_key(void);