source/include/client.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB parameters and setup
   4    Copyright (C) Andrew Tridgell 1992-1998
   5    Copyright (C) Luke Kenneth Casson Leighton 1996-1998
   6    Copyright (C) Jeremy Allison 1998
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #ifndef _CLIENT_H
  23 #define _CLIENT_H
  24
  25 /* the client asks for a smaller buffer to save ram and also to get more
  26    overlap on the wire. This size gives us a nice read/write size, which
  27    will be a multiple of the page size on almost any system */
  28 #define CLI_BUFFER_SIZE (0xFFFF)
  29 #define CLI_SAMBA_MAX_LARGE_READX_SIZE (127*1024) /* Works for Samba servers */
  30 #define CLI_SAMBA_MAX_LARGE_WRITEX_SIZE (127*1024) /* Works for Samba servers */
  31 #define CLI_WINDOWS_MAX_LARGE_READX_SIZE ((64*1024)-2) /* Windows servers are broken.... */
  32 #define CLI_WINDOWS_MAX_LARGE_WRITEX_SIZE ((64*1024)-2) /* Windows servers are broken.... */
  33 #define CLI_SAMBA_MAX_POSIX_LARGE_READX_SIZE (0xFFFF00) /* 24-bit len. */
  34 #define CLI_SAMBA_MAX_POSIX_LARGE_WRITEX_SIZE (0xFFFF00) /* 24-bit len. */
  35
  36 /*
  37  * These definitions depend on smb.h
  38  */
  39
  40 struct print_job_info {
  41         uint16 id;
  42         uint16 priority;
  43         size_t size;
  44         fstring user;
  45         fstring name;
  46         time_t t;
  47 };
  48
  49 struct cli_pipe_auth_data {
  50         enum pipe_auth_type auth_type; /* switch for the union below. Defined in ntdomain.h */
  51         enum pipe_auth_level auth_level; /* defined in ntdomain.h */
  52
  53         char *domain;
  54         char *user_name;
  55
  56         union {
  57                 struct schannel_auth_struct *schannel_auth;
  58                 NTLMSSP_STATE *ntlmssp_state;
  59                 struct kerberos_auth_struct *kerberos_auth;
  60         } a_u;
  61         void (*cli_auth_data_free_func)(struct cli_pipe_auth_data *);
  62 };
  63
  64 struct rpc_pipe_client {
  65         struct rpc_pipe_client *prev, *next;
  66
  67         struct cli_state *cli;
  68
  69         const char *pipe_name;
  70         uint16 fnum;
  71
  72         const struct ndr_syntax_id *abstract_syntax;
  73         const struct ndr_syntax_id *transfer_syntax;
  74
  75         char *desthost;
  76         char *srv_name_slash;
  77
  78         uint16 max_xmit_frag;
  79         uint16 max_recv_frag;
  80
  81         struct cli_pipe_auth_data *auth;
  82
  83         /* The following is only non-null on a netlogon pipe. */
  84         struct dcinfo *dc;
  85 };
  86
  87 /* Transport encryption state. */
  88 enum smb_trans_enc_type {
  89                 SMB_TRANS_ENC_NTLM
  90 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
  91                 , SMB_TRANS_ENC_GSS
  92 #endif
  93 };
  94
  95 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
  96 struct smb_tran_enc_state_gss {
  97         gss_ctx_id_t gss_ctx;
  98         gss_cred_id_t creds;
  99 };
 100 #endif
 101
 102 struct smb_trans_enc_state {
 103         enum smb_trans_enc_type smb_enc_type;
 104         uint16 enc_ctx_num;
 105         bool enc_on;
 106         union {
 107                 NTLMSSP_STATE *ntlmssp_state;
 108 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
 109                 struct smb_tran_enc_state_gss *gss_state;
 110 #endif
 111         } s;
 112 };
 113
 114 struct cli_state {
 115         int port;
 116         int fd;
 117         /* Last read or write error. */
 118         enum smb_read_errors smb_rw_error;
 119         uint16 cnum;
 120         uint16 pid;
 121         uint16 mid;
 122         uint16 vuid;
 123         int protocol;
 124         int sec_mode;
 125         int rap_error;
 126         int privileges;
 127
 128         fstring desthost;
 129
 130         /* The credentials used to open the cli_state connection. */
 131         fstring domain;
 132         fstring user_name;
 133         struct pwd_info pwd;
 134
 135         /*
 136          * The following strings are the
 137          * ones returned by the server if
 138          * the protocol > NT1.
 139          */
 140         fstring server_type;
 141         fstring server_os;
 142         fstring server_domain;
 143
 144         fstring share;
 145         fstring dev;
 146         struct nmb_name called;
 147         struct nmb_name calling;
 148         fstring full_dest_host_name;
 149         struct sockaddr_storage dest_ss;
 150
 151         DATA_BLOB secblob; /* cryptkey or negTokenInit */
 152         uint32 sesskey;
 153         int serverzone;
 154         uint32 servertime;
 155         int readbraw_supported;
 156         int writebraw_supported;
 157         int timeout; /* in milliseconds. */
 158         size_t max_xmit;
 159         size_t max_mux;
 160         char *outbuf;
 161         char *inbuf;
 162         unsigned int bufsize;
 163         int initialised;
 164         int win95;
 165         bool is_samba;
 166         uint32 capabilities;
 167         uint32 posix_capabilities;
 168         bool dfsroot;
 169
 170 #if 0
 171         TALLOC_CTX *longterm_mem_ctx;
 172         TALLOC_CTX *call_mem_ctx;
 173 #endif
 174
 175         smb_sign_info sign_info;
 176
 177         struct smb_trans_enc_state *trans_enc_state; /* Setup if we're encrypting SMB's. */
 178
 179         /* the session key for this CLI, outside
 180            any per-pipe authenticaion */
 181         DATA_BLOB user_session_key;
 182
 183         /* The list of pipes currently open on this connection. */
 184         struct rpc_pipe_client *pipe_list;
 185
 186         bool use_kerberos;
 187         bool fallback_after_kerberos;
 188         bool use_spnego;
 189
 190         bool use_oplocks; /* should we use oplocks? */
 191         bool use_level_II_oplocks; /* should we use level II oplocks? */
 192
 193         /* a oplock break request handler */
 194         bool (*oplock_handler)(struct cli_state *cli, int fnum, unsigned char level);
 195
 196         bool force_dos_errors;
 197         bool case_sensitive; /* False by default. */
 198
 199         struct event_context *event_ctx;
 200         struct fd_event *fd_event;
 201         char *evt_inbuf;
 202
 203         struct cli_request *outstanding_requests;
 204 };
 205
 206 struct cli_request {
 207         struct cli_request *prev, *next;
 208         struct async_req *async;
 209
 210         struct cli_state *cli;
 211
 212         struct smb_trans_enc_state *enc_state;
 213
 214         uint16_t mid;
 215
 216         char *outbuf;
 217         size_t sent;
 218         char *inbuf;
 219
 220         union {
 221                 struct {
 222                         off_t ofs;
 223                         size_t size;
 224                         ssize_t received;
 225                         uint8_t *rcvbuf;
 226                 } read;
 227         } data;
 228 };
 229
 230 typedef struct file_info {
 231         struct cli_state *cli;
 232         SMB_BIG_UINT size;
 233         uint16 mode;
 234         uid_t uid;
 235         gid_t gid;
 236         /* these times are normally kept in GMT */
 237         struct timespec mtime_ts;
 238         struct timespec atime_ts;
 239         struct timespec ctime_ts;
 240         char *name;
 241         char short_name[13*3]; /* the *3 is to cope with multi-byte */
 242 } file_info;
 243
 244 #define CLI_FULL_CONNECTION_DONT_SPNEGO 0x0001
 245 #define CLI_FULL_CONNECTION_USE_KERBEROS 0x0002
 246 #define CLI_FULL_CONNECTION_ANONYMOUS_FALLBACK 0x0004
 247 #define CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS 0x0008
 248
 249 #endif /* _CLIENT_H */