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/*
MySecureShell permit to add restriction to modified sftp-server
when using MySecureShell as shell.
Copyright (C) 2007-2014 MySecureShell Team
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 the Free Software Foundation (version 2)
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _SFTP_H_
#define _SFTP_H_
#include <unistd.h>
#include <sys/types.h>
#include <regex.h>
#include "SftpWho.h"
#define HAS_BIT(_A, _B) (((_A) & (_B)) == (_B))
#ifndef MIN
#define MIN(_A, _B) ((_A) < (_B) ? (_A) : (_B))
#endif
#ifndef MAX
#define MAX(_A, _B) ((_A) > (_B) ? (_A) : (_B))
#endif
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
#ifndef S_ISVTX
#define S_ISVTX 01000
#endif
#define SSH2_MAX_PACKET 131072
#define SSH2_MAX_READ 131072
#define SSH2_READ_HASH 131072
/* version */
#define SSH2_FILEXFER_VERSION 5
#define SSH2_SIMPLE_ADMIN_VERSION 254
#define SSH2_ADMIN_VERSION 255
/* client to server */
#define SSH2_FXP_INIT 1
#define SSH2_FXP_OPEN 3
#define SSH2_FXP_CLOSE 4
#define SSH2_FXP_READ 5
#define SSH2_FXP_WRITE 6
#define SSH2_FXP_LSTAT 7
#define SSH2_FXP_FSTAT 8
#define SSH2_FXP_SETSTAT 9
#define SSH2_FXP_FSETSTAT 10
#define SSH2_FXP_OPENDIR 11
#define SSH2_FXP_READDIR 12
#define SSH2_FXP_REMOVE 13
#define SSH2_FXP_MKDIR 14
#define SSH2_FXP_RMDIR 15
#define SSH2_FXP_REALPATH 16
#define SSH2_FXP_STAT 17
#define SSH2_FXP_RENAME 18
#define SSH2_FXP_READLINK 19
#define SSH2_FXP_SYMLINK 20
/* server to client */
#define SSH2_FXP_VERSION 2
#define SSH2_FXP_STATUS 101
#define SSH2_FXP_HANDLE 102
#define SSH2_FXP_DATA 103
#define SSH2_FXP_NAME 104
#define SSH2_FXP_ATTRS 105
#define SSH2_FXP_EXTENDED 200
#define SSH2_FXP_EXTENDED_REPLY 201
#define SSH_ADMIN_LIST_USERS 210
#define SSH_ADMIN_LIST_USERS_REPLY 211
#define SSH_ADMIN_KILL_USER 212
#define SSH_ADMIN_SERVER_STATUS 213
#define SSH_ADMIN_SERVER_GET_STATUS 214
#define SSH_ADMIN_SERVER_GET_STATUS_REPLY 215
#define SSH_ADMIN_GET_LOG_CONTENT 216
#define SSH_ADMIN_CONFIG_GET 217
#define SSH_ADMIN_CONFIG_SET 218
#define SSH_ADMIN_USER_CREATE 219
#define SSH_ADMIN_USER_DELETE 220
#define SSH_ADMIN_USER_LIST 221
#define SSH_ADMIN_STATS 222
#define SSH_ADMIN_STATS_REPLY 223
/* attributes */
#define SSH2_FILEXFER_ATTR_SIZE 0x00000001
#define SSH2_FILEXFER_ATTR_UIDGID 0x00000002
#define SSH2_FILEXFER_ATTR_PERMISSIONS 0x00000004
#define SSH2_FILEXFER_ATTR_ACMODTIME 0x00000008
#define SSH4_FILEXFER_ATTR_ACCESSTIME 0x00000008
#define SSH4_FILEXFER_ATTR_CREATETIME 0x00000010
#define SSH4_FILEXFER_ATTR_MODIFYTIME 0x00000020
#define SSH2_FILEXFER_ATTR_ACL 0x00000040
#define SSH4_FILEXFER_ATTR_OWNERGROUP 0x00000080
#define SSH4_FILEXFER_ATTR_SUBSECOND_TIMES 0x00000100
#define SSH5_FILEXFER_ATTR_BITS 0x00000200
#define SSH2_FILEXFER_ATTR_EXTENDED 0x80000000
#define SSH5_FILEXFER_ATTR__MASK 0x8FFFFFFF
#define SSH5_FILEXFER_ATTR__BITS 0x800003FF
#define SSH5_FILEXFER_ATTR_FLAGS_READONLY 0x00000001
#define SSH5_FILEXFER_ATTR_FLAGS_SYSTEM 0x00000002
#define SSH5_FILEXFER_ATTR_FLAGS_HIDDEN 0x00000004
#define SSH5_FILEXFER_ATTR_FLAGS_CASE_INSENSITIVE 0x00000008
#define SSH5_FILEXFER_ATTR_FLAGS_ARCHIVE 0x00000010
#define SSH5_FILEXFER_ATTR_FLAGS_ENCRYPTED 0x00000020
#define SSH5_FILEXFER_ATTR_FLAGS_COMPRESSED 0x00000040
#define SSH5_FILEXFER_ATTR_FLAGS_SPARSE 0x00000080
#define SSH5_FILEXFER_ATTR_FLAGS_APPEND_ONLY 0x00000100
#define SSH5_FILEXFER_ATTR_FLAGS_IMMUTABLE 0x00000200
#define SSH5_FILEXFER_ATTR_FLAGS_SYNC 0x00000400
/* portable open modes */
#define SSH2_FXF_READ 0x00000001
#define SSH2_FXF_WRITE 0x00000002
#define SSH2_FXF_APPEND 0x00000004
#define SSH2_FXF_CREAT 0x00000008
#define SSH2_FXF_TRUNC 0x00000010
#define SSH2_FXF_EXCL 0x00000020
#define SSH4_FXF_TEXT 0x00000040
#define SSH5_FXF_CREATE_NEW 0x00000000
#define SSH5_FXF_CREATE_TRUNCATE 0x00000001
#define SSH5_FXF_OPEN_EXISTING 0x00000002
#define SSH5_FXF_OPEN_OR_CREATE 0x00000003
#define SSH5_FXF_TRUNCATE_EXISTING 0x00000004
#define SSH5_FXF_ACCESS_DISPOSITION 0x00000007
#define SSH5_FXF__FLAGS 0x0000007F
#define SSH5_FXF_ACCESS_APPEND_DATA 0x00000008
#define SSH5_FXF_ACCESS_APPEND_DATA_ATOMIC 0x00000010
#define SSH5_FXF_ACCESS_TEXT_MODE 0x00000020
#define SSH5_FXF_ACCESS_READ_LOCK 0x00000040
#define SSH5_FXF_ACCESS_WRITE_LOCK 0x00000080
#define SSH5_FXF_ACCESS_DELETE_LOCK 0x00000100
#define SSH5_FXF_ACCESS__FLAGS 0x000001F8
/* message flags */
#define SSH5_FXP_RENAME_OVERWRITE 0x00000001
#define SSH5_FXP_RENAME_ATOMIC 0x00000002
#define SSH5_FXP_RENAME_NATIVE 0x00000004
/* ace type */
#define SSH5_ACE4_ACCESS_ALLOWED_ACE_TYPE 0x00000000
#define SSH5_ACE4_ACCESS_DENIED_ACE_TYPE 0x00000001
#define SSH5_ACE4_SYSTEM_AUDIT_ACE_TYPE 0x00000002
#define SSH5_ACE4_SYSTEM_ALARM_ACE_TYPE 0x00000003
/* ace mask */
#define SSH5_ACE4_READ_DATA 0x00000001
#define SSH5_ACE4_LIST_DIRECTORY 0x00000001
#define SSH5_ACE4_WRITE_DATA 0x00000002
#define SSH5_ACE4_ADD_FILE 0x00000002
#define SSH5_ACE4_APPEND_DATA 0x00000004
#define SSH5_ACE4_ADD_SUBDIRECTORY 0x00000004
#define SSH5_ACE4_READ_NAMED_ATTRS 0x00000008
#define SSH5_ACE4_WRITE_NAMED_ATTRS 0x00000010
#define SSH5_ACE4_EXECUTE 0x00000020
#define SSH5_ACE4_DELETE_CHILD 0x00000040
#define SSH5_ACE4_READ_ATTRIBUTES 0x00000080
#define SSH5_ACE4_WRITE_ATTRIBUTES 0x00000100
#define SSH5_ACE4_DELETE 0x00010000
#define SSH5_ACE4_READ_ACL 0x00020000
#define SSH5_ACE4_WRITE_ACL 0x00040000
#define SSH5_ACE4_WRITE_OWNER 0x00080000
#define SSH5_ACE4_SYNCHRONIZE 0x00100000
/* status messages */
#define SSH2_FX_OK 0
#define SSH2_FX_EOF 1
#define SSH2_FX_NO_SUCH_FILE 2
#define SSH2_FX_PERMISSION_DENIED 3
#define SSH2_FX_FAILURE 4
#define SSH2_FX_BAD_MESSAGE 5
#define SSH2_FX_NO_CONNECTION 6
#define SSH2_FX_CONNECTION_LOST 7
#define SSH2_FX_OP_UNSUPPORTED 8
#define SSH4_FX_INVALID_HANDLE 9
#define SSH4_FX_NO_SUCH_PATH 10
#define SSH4_FX_FILE_ALREADY_EXISTS 11
#define SSH4_FX_WRITE_PROTECT 12
#define SSH4_FX_NO_MEDIA 13
#define SSH5_FX_NO_SPACE_ON_FILESYSTEM 14
#define SSH5_FX_QUOTA_EXCEEDED 15
#define SSH5_FX_UNKNOWN_PRINCIPLE 16
#define SSH5_FX_LOCK_CONFlICT 17
#define SSH2_FX_MAX 18
/* file type */
#define SSH4_FILEXFER_TYPE_REGULAR 1
#define SSH4_FILEXFER_TYPE_DIRECTORY 2
#define SSH4_FILEXFER_TYPE_SYMLINK 3
#define SSH4_FILEXFER_TYPE_SPECIAL 4
#define SSH4_FILEXFER_TYPE_UNKNOWN 5
#define SSH5_FILEXFER_TYPE_SOCKET 6
#define SSH5_FILEXFER_TYPE_CHAR_DEVICE 7
#define SSH5_FILEXFER_TYPE_BLOCK_DEVICE 8
#define SSH5_FILEXFER_TYPE_FIFO 9
typedef struct sAttributes
{
u_int32_t flags;
u_int8_t type;
u_int64_t size;
u_int32_t uid;
u_int32_t gid;
u_int32_t perm;
u_int32_t atime;
u_int32_t ctime;
u_int32_t mtime;
u_int32_t attrib;
} tAttributes;
typedef struct sStat
{
char *name;
char *longName;
tAttributes attributes;
} tStat;
/* Global defines */
#define MSS_TRUE 1
#define MSS_FALSE 0
/* End defines */
typedef struct sGlobal
{
t_sftpwho *who;
char *user;
char *ip;
int portSource;
char *home;
uid_t current_user;
gid_t current_group;
u_int32_t flagsGlobals;
u_int32_t flagsDisable;
int must_shutdown;
int max_openfiles;
int max_readfiles;
int max_writefiles;
int default_rights_file;
int default_rights_directory;
int minimum_rights_file;
int minimum_rights_directory;
int maximum_rights_file;
int maximum_rights_directory;
u_int32_t download_current;
u_int32_t upload_current;
u_int32_t download_max;
u_int32_t upload_max;
char *force_user;
char *force_group;
u_int32_t dir_mode;
} tGlobal;
extern u_int32_t cVersion;
int SftpMain(tGlobal *params, int sftpProtocol);
void DoInit();
void DoRealPath();
void DoOpenDir();
void DoReadDir();
void DoClose();
void DoOpen();
void DoRead();
void DoWrite();
void DoReadLink();
void DoStat(int doLStat);
void DoFStat();
void DoSetStat(int usePath);
void DoRemove();
void DoMkDir();
void DoRmDir();
void DoRename();
void DoSymLink();
void DoUnsupported(int msgType, int msgLen);
void DoExtended();
void DoSFTPProtocol();
#endif //_SFTP_H_
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