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      1 /* $OpenBSD: ssh1.h,v 1.6 2006/03/25 22:22:43 djm Exp $ */
      2 
      3 /*
      4  * Author: Tatu Ylonen <ylo (at) cs.hut.fi>
      5  * Copyright (c) 1995 Tatu Ylonen <ylo (at) cs.hut.fi>, Espoo, Finland
      6  *                    All rights reserved
      7  *
      8  * As far as I am concerned, the code I have written for this software
      9  * can be used freely for any purpose.  Any derived versions of this
     10  * software must be clearly marked as such, and if the derived work is
     11  * incompatible with the protocol description in the RFC file, it must be
     12  * called by a name other than "ssh" or "Secure Shell".
     13  */
     14 
     15 /*
     16  * Definition of message types.  New values can be added, but old values
     17  * should not be removed or without careful consideration of the consequences
     18  * for compatibility.  The maximum value is 254; value 255 is reserved for
     19  * future extension.
     20  */
     21 /* Ranges */
     22 #define SSH_MSG_MIN				1
     23 #define SSH_MSG_MAX				254
     24 /* Message name */			/* msg code */	/* arguments */
     25 #define SSH_MSG_NONE				0	/* no message */
     26 #define SSH_MSG_DISCONNECT			1	/* cause (string) */
     27 #define SSH_SMSG_PUBLIC_KEY			2	/* ck,msk,srvk,hostk */
     28 #define SSH_CMSG_SESSION_KEY			3	/* key (BIGNUM) */
     29 #define SSH_CMSG_USER				4	/* user (string) */
     30 #define SSH_CMSG_AUTH_RHOSTS			5	/* user (string) */
     31 #define SSH_CMSG_AUTH_RSA			6	/* modulus (BIGNUM) */
     32 #define SSH_SMSG_AUTH_RSA_CHALLENGE		7	/* int (BIGNUM) */
     33 #define SSH_CMSG_AUTH_RSA_RESPONSE		8	/* int (BIGNUM) */
     34 #define SSH_CMSG_AUTH_PASSWORD			9	/* pass (string) */
     35 #define SSH_CMSG_REQUEST_PTY			10	/* TERM, tty modes */
     36 #define SSH_CMSG_WINDOW_SIZE			11	/* row,col,xpix,ypix */
     37 #define SSH_CMSG_EXEC_SHELL			12	/* */
     38 #define SSH_CMSG_EXEC_CMD			13	/* cmd (string) */
     39 #define SSH_SMSG_SUCCESS			14	/* */
     40 #define SSH_SMSG_FAILURE			15	/* */
     41 #define SSH_CMSG_STDIN_DATA			16	/* data (string) */
     42 #define SSH_SMSG_STDOUT_DATA			17	/* data (string) */
     43 #define SSH_SMSG_STDERR_DATA			18	/* data (string) */
     44 #define SSH_CMSG_EOF				19	/* */
     45 #define SSH_SMSG_EXITSTATUS			20	/* status (int) */
     46 #define SSH_MSG_CHANNEL_OPEN_CONFIRMATION	21	/* channel (int) */
     47 #define SSH_MSG_CHANNEL_OPEN_FAILURE		22	/* channel (int) */
     48 #define SSH_MSG_CHANNEL_DATA			23	/* ch,data (int,str) */
     49 #define SSH_MSG_CHANNEL_CLOSE			24	/* channel (int) */
     50 #define SSH_MSG_CHANNEL_CLOSE_CONFIRMATION	25	/* channel (int) */
     51 /*      SSH_CMSG_X11_REQUEST_FORWARDING		26	   OBSOLETE */
     52 #define SSH_SMSG_X11_OPEN			27	/* channel (int) */
     53 #define SSH_CMSG_PORT_FORWARD_REQUEST		28	/* p,host,hp (i,s,i) */
     54 #define SSH_MSG_PORT_OPEN			29	/* ch,h,p (i,s,i) */
     55 #define SSH_CMSG_AGENT_REQUEST_FORWARDING	30	/* */
     56 #define SSH_SMSG_AGENT_OPEN			31	/* port (int) */
     57 #define SSH_MSG_IGNORE				32	/* string */
     58 #define SSH_CMSG_EXIT_CONFIRMATION		33	/* */
     59 #define SSH_CMSG_X11_REQUEST_FORWARDING		34	/* proto,data (s,s) */
     60 #define SSH_CMSG_AUTH_RHOSTS_RSA		35	/* user,mod (s,mpi) */
     61 #define SSH_MSG_DEBUG				36	/* string */
     62 #define SSH_CMSG_REQUEST_COMPRESSION		37	/* level 1-9 (int) */
     63 #define SSH_CMSG_MAX_PACKET_SIZE		38	/* size 4k-1024k (int) */
     64 #define SSH_CMSG_AUTH_TIS			39	/* we use this for s/key */
     65 #define SSH_SMSG_AUTH_TIS_CHALLENGE		40	/* challenge (string) */
     66 #define SSH_CMSG_AUTH_TIS_RESPONSE		41	/* response (string) */
     67 #define SSH_CMSG_AUTH_KERBEROS			42	/* (KTEXT) */
     68 #define SSH_SMSG_AUTH_KERBEROS_RESPONSE		43	/* (KTEXT) */
     69 #define SSH_CMSG_HAVE_KERBEROS_TGT		44	/* credentials (s) */
     70 #define SSH_CMSG_HAVE_AFS_TOKEN			65	/* token (s) */
     71 
     72 /* protocol version 1.5 overloads some version 1.3 message types */
     73 #define SSH_MSG_CHANNEL_INPUT_EOF	SSH_MSG_CHANNEL_CLOSE
     74 #define SSH_MSG_CHANNEL_OUTPUT_CLOSE	SSH_MSG_CHANNEL_CLOSE_CONFIRMATION
     75 
     76 /*
     77  * Authentication methods.  New types can be added, but old types should not
     78  * be removed for compatibility.  The maximum allowed value is 31.
     79  */
     80 #define SSH_AUTH_RHOSTS		1
     81 #define SSH_AUTH_RSA		2
     82 #define SSH_AUTH_PASSWORD	3
     83 #define SSH_AUTH_RHOSTS_RSA	4
     84 #define SSH_AUTH_TIS		5
     85 #define SSH_AUTH_KERBEROS	6
     86 #define SSH_PASS_KERBEROS_TGT	7
     87 				/* 8 to 15 are reserved */
     88 #define SSH_PASS_AFS_TOKEN	21
     89 
     90 /* Protocol flags.  These are bit masks. */
     91 #define SSH_PROTOFLAG_SCREEN_NUMBER	1	/* X11 forwarding includes screen */
     92 #define SSH_PROTOFLAG_HOST_IN_FWD_OPEN	2	/* forwarding opens contain host */
     93