source/nsswitch/winbindd_nss.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon for ntdom nss module
   5
   6    Copyright (C) Tim Potter 2000
   7    Copyright (C) Gerald Carter 2006
   8
   9    You are free to use this interface definition in any way you see
  10    fit, including without restriction, using this header in your own
  11    products. You do not need to give any attribution.
  12 */
  13
  14
  15 #ifndef CONST_DISCARD
  16 #define CONST_DISCARD(type, ptr)      ((type) ((void *) (ptr)))
  17 #endif
  18
  19 #ifndef CONST_ADD
  20 #define CONST_ADD(type, ptr)          ((type) ((const void *) (ptr)))
  21 #endif
  22
  23 #ifndef SAFE_FREE
  24 #define SAFE_FREE(x) do { if(x) {free(x); x=NULL;} } while(0)
  25 #endif
  26
  27 #ifndef _WINBINDD_NTDOM_H
  28 #define _WINBINDD_NTDOM_H
  29
  30 #define WINBINDD_SOCKET_NAME "pipe"            /* Name of PF_UNIX socket */
  31 #define WINBINDD_SOCKET_DIR  "/tmp/.winbindd"  /* Name of PF_UNIX dir */
  32 #define WINBINDD_PRIV_SOCKET_SUBDIR "winbindd_privileged" /* name of subdirectory of lp_lockdir() to hold the 'privileged' pipe */
  33 #define WINBINDD_DOMAIN_ENV  "WINBINDD_DOMAIN" /* Environment variables */
  34 #define WINBINDD_DONT_ENV    "_NO_WINBINDD"
  35
  36 /* Update this when you change the interface.  */
  37
  38 #define WINBIND_INTERFACE_VERSION 16
  39
  40 /* Have to deal with time_t being 4 or 8 bytes due to structure alignment.
  41    On a 64bit Linux box, we have to support a constant structure size
  42    between /lib/libnss_winbind.so.2 and /li64/libnss_winbind.so.2.
  43    The easiest way to do this is to always use 8byte values for time_t. */
  44
  45 #if defined(uint64)
  46 #  define SMB_TIME_T uint64
  47 #else
  48 #  define SMB_TIME_T time_t
  49 #endif
  50
  51 /* Socket commands */
  52
  53 enum winbindd_cmd {
  54
  55         WINBINDD_INTERFACE_VERSION,    /* Always a well known value */
  56
  57         /* Get users and groups */
  58
  59         WINBINDD_GETPWNAM,
  60         WINBINDD_GETPWUID,
  61         WINBINDD_GETGRNAM,
  62         WINBINDD_GETGRGID,
  63         WINBINDD_GETGROUPS,
  64
  65         /* Enumerate users and groups */
  66
  67         WINBINDD_SETPWENT,
  68         WINBINDD_ENDPWENT,
  69         WINBINDD_GETPWENT,
  70         WINBINDD_SETGRENT,
  71         WINBINDD_ENDGRENT,
  72         WINBINDD_GETGRENT,
  73
  74         /* PAM authenticate and password change */
  75
  76         WINBINDD_PAM_AUTH,
  77         WINBINDD_PAM_AUTH_CRAP,
  78         WINBINDD_PAM_CHAUTHTOK,
  79         WINBINDD_PAM_LOGOFF,
  80         WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP,
  81
  82         /* List various things */
  83
  84         WINBINDD_LIST_USERS,         /* List w/o rid->id mapping */
  85         WINBINDD_LIST_GROUPS,        /* Ditto */
  86         WINBINDD_LIST_TRUSTDOM,
  87
  88         /* SID conversion */
  89
  90         WINBINDD_LOOKUPSID,
  91         WINBINDD_LOOKUPNAME,
  92         WINBINDD_LOOKUPRIDS,
  93
  94         /* Lookup functions */
  95
  96         WINBINDD_SID_TO_UID,
  97         WINBINDD_SID_TO_GID,
  98         WINBINDD_UID_TO_SID,
  99         WINBINDD_GID_TO_SID,
 100
 101         WINBINDD_ALLOCATE_UID,
 102         WINBINDD_ALLOCATE_GID,
 103
 104         /* Miscellaneous other stuff */
 105
 106         WINBINDD_CHECK_MACHACC,     /* Check machine account pw works */
 107         WINBINDD_PING,              /* Just tell me winbind is running */
 108         WINBINDD_INFO,              /* Various bit of info.  Currently just tidbits */
 109         WINBINDD_DOMAIN_NAME,       /* The domain this winbind server is a member of (lp_workgroup()) */
 110
 111         WINBINDD_DOMAIN_INFO,   /* Most of what we know from
 112                                    struct winbindd_domain */
 113         WINBINDD_GETDCNAME,     /* Issue a GetDCName Request */
 114
 115         WINBINDD_SHOW_SEQUENCE, /* display sequence numbers of domains */
 116
 117         /* WINS commands */
 118
 119         WINBINDD_WINS_BYIP,
 120         WINBINDD_WINS_BYNAME,
 121
 122         /* this is like GETGRENT but gives an empty group list */
 123         WINBINDD_GETGRLST,
 124
 125         WINBINDD_NETBIOS_NAME,       /* The netbios name of the server */
 126
 127         /* find the location of our privileged pipe */
 128         WINBINDD_PRIV_PIPE_DIR,
 129
 130         /* return a list of group sids for a user sid */
 131         WINBINDD_GETUSERSIDS,
 132
 133         /* Various group queries */
 134         WINBINDD_GETUSERDOMGROUPS,
 135
 136         /* Initialize connection in a child */
 137         WINBINDD_INIT_CONNECTION,
 138
 139         /* Blocking calls that are not allowed on the main winbind pipe, only
 140          * between parent and children */
 141         WINBINDD_DUAL_SID2UID,
 142         WINBINDD_DUAL_SID2GID,
 143         WINBINDD_DUAL_UID2SID,
 144         WINBINDD_DUAL_GID2SID,
 145         WINBINDD_DUAL_IDMAPSET,
 146
 147         /* Wrapper around possibly blocking unix nss calls */
 148         WINBINDD_DUAL_UID2NAME,
 149         WINBINDD_DUAL_NAME2UID,
 150         WINBINDD_DUAL_GID2NAME,
 151         WINBINDD_DUAL_NAME2GID,
 152
 153         WINBINDD_DUAL_USERINFO,
 154         WINBINDD_DUAL_GETSIDALIASES,
 155
 156         WINBINDD_NUM_CMDS
 157 };
 158
 159 typedef struct winbindd_pw {
 160         fstring pw_name;
 161         fstring pw_passwd;
 162         uid_t pw_uid;
 163         gid_t pw_gid;
 164         fstring pw_gecos;
 165         fstring pw_dir;
 166         fstring pw_shell;
 167 } WINBINDD_PW;
 168
 169
 170 typedef struct winbindd_gr {
 171         fstring gr_name;
 172         fstring gr_passwd;
 173         gid_t gr_gid;
 174         uint32 num_gr_mem;
 175         uint32 gr_mem_ofs;   /* offset to group membership */
 176 } WINBINDD_GR;
 177
 178
 179 #define WBFLAG_PAM_INFO3_NDR            0x0001
 180 #define WBFLAG_PAM_INFO3_TEXT           0x0002
 181 #define WBFLAG_PAM_USER_SESSION_KEY     0x0004
 182 #define WBFLAG_PAM_LMKEY                0x0008
 183 #define WBFLAG_PAM_CONTACT_TRUSTDOM     0x0010
 184 #define WBFLAG_QUERY_ONLY               0x0020
 185 #define WBFLAG_PAM_UNIX_NAME            0x0080
 186 #define WBFLAG_PAM_AFS_TOKEN            0x0100
 187 #define WBFLAG_PAM_NT_STATUS_SQUASH     0x0200
 188
 189 /* This is a flag that can only be sent from parent to child */
 190 #define WBFLAG_IS_PRIVILEGED            0x0400
 191 /* Flag to say this is a winbindd internal send - don't recurse. */
 192 #define WBFLAG_RECURSE                  0x0800
 193
 194 #define WBFLAG_PAM_KRB5                 0x1000
 195 #define WBFLAG_PAM_FALLBACK_AFTER_KRB5  0x2000
 196 #define WBFLAG_PAM_CACHED_LOGIN         0x4000
 197 #define WBFLAG_PAM_GET_PWD_POLICY       0x8000
 198
 199 #define WINBINDD_MAX_EXTRA_DATA (128*1024)
 200
 201 /* Winbind request structure */
 202
 203 /*******************************************************************************
 204  * This structure MUST be the same size in the 32bit and 64bit builds
 205  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 206  *
 207  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 208  * A 64BIT WINBINDD    --jerry
 209  ******************************************************************************/
 210
 211 struct winbindd_request {
 212         uint32 length;
 213         enum winbindd_cmd cmd;   /* Winbindd command to execute */
 214         pid_t pid;               /* pid of calling process */
 215         uint32 flags;            /* flags relavant to a given request */
 216         fstring domain_name;    /* name of domain for which the request applies */
 217
 218         union {
 219                 fstring winsreq;     /* WINS request */
 220                 fstring username;    /* getpwnam */
 221                 fstring groupname;   /* getgrnam */
 222                 uid_t uid;           /* getpwuid, uid_to_sid */
 223                 gid_t gid;           /* getgrgid, gid_to_sid */
 224                 struct {
 225                         /* We deliberatedly don't split into domain/user to
 226                            avoid having the client know what the separator
 227                            character is. */
 228                         fstring user;
 229                         fstring pass;
 230                         fstring require_membership_of_sid;
 231                         fstring krb5_cc_type;
 232                         uid_t uid;
 233                 } auth;              /* pam_winbind auth module */
 234                 struct {
 235                         unsigned char chal[8];
 236                         uint32 logon_parameters;
 237                         fstring user;
 238                         fstring domain;
 239                         fstring lm_resp;
 240                         uint32 lm_resp_len;
 241                         fstring nt_resp;
 242                         uint32 nt_resp_len;
 243                         fstring workstation;
 244                         fstring require_membership_of_sid;
 245                 } auth_crap;
 246                 struct {
 247                     fstring user;
 248                     fstring oldpass;
 249                     fstring newpass;
 250                 } chauthtok;         /* pam_winbind passwd module */
 251                 struct {
 252                         fstring user;
 253                         fstring domain;
 254                         unsigned char new_nt_pswd[516];
 255                         uint16  new_nt_pswd_len;
 256                         unsigned char old_nt_hash_enc[16];
 257                         uint16  old_nt_hash_enc_len;
 258                         unsigned char new_lm_pswd[516];
 259                         uint16  new_lm_pswd_len;
 260                         unsigned char old_lm_hash_enc[16];
 261                         uint16  old_lm_hash_enc_len;
 262                 } chng_pswd_auth_crap;/* pam_winbind passwd module */
 263                 struct {
 264                         fstring user;
 265                         fstring krb5ccname;
 266                         uid_t uid;
 267                 } logoff;              /* pam_winbind session module */
 268                 fstring sid;         /* lookupsid, sid_to_[ug]id */
 269                 struct {
 270                         fstring dom_name;       /* lookupname */
 271                         fstring name;
 272                 } name;
 273                 uint32 num_entries;  /* getpwent, getgrent */
 274                 struct {
 275                         fstring username;
 276                         fstring groupname;
 277                 } acct_mgt;
 278                 struct {
 279                         BOOL is_primary;
 280                         fstring dcname;
 281                 } init_conn;
 282                 struct {
 283                         fstring sid;
 284                         fstring name;
 285                         BOOL alloc;
 286                 } dual_sid2id;
 287                 struct {
 288                         int type;
 289                         uid_t uid;
 290                         gid_t gid;
 291                         fstring sid;
 292                 } dual_idmapset;
 293                 BOOL list_all_domains;
 294
 295                 /* padding -- needed to fix alignment between 32bit and 64bit libs.
 296                    The size if the sizeof the union without the padding aligned on
 297                    an 8 byte boundary.   --jerry */
 298
 299                 char padding[1560];
 300         } data;
 301         union {
 302                 SMB_TIME_T padding;
 303                 char *data;
 304         } extra_data;
 305         uint32 extra_len;
 306         char null_term;
 307 };
 308
 309 /* Response values */
 310
 311 enum winbindd_result {
 312         WINBINDD_ERROR,
 313         WINBINDD_PENDING,
 314         WINBINDD_OK
 315 };
 316
 317 /* Winbind response structure */
 318
 319 /*******************************************************************************
 320  * This structure MUST be the same size in the 32bit and 64bit builds
 321  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 322  *
 323  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 324  * A 64BIT WINBINDD    --jerry
 325  ******************************************************************************/
 326
 327 struct winbindd_response {
 328
 329         /* Header information */
 330
 331         uint32 length;                        /* Length of response */
 332         enum winbindd_result result;          /* Result code */
 333
 334         /* Fixed length return data */
 335
 336         union {
 337                 int interface_version;  /* Try to ensure this is always in the same spot... */
 338
 339                 fstring winsresp;               /* WINS response */
 340
 341                 /* getpwnam, getpwuid */
 342
 343                 struct winbindd_pw pw;
 344
 345                 /* getgrnam, getgrgid */
 346
 347                 struct winbindd_gr gr;
 348
 349                 uint32 num_entries; /* getpwent, getgrent */
 350                 struct winbindd_sid {
 351                         fstring sid;        /* lookupname, [ug]id_to_sid */
 352                         int type;
 353                 } sid;
 354                 struct winbindd_name {
 355                         fstring dom_name;       /* lookupsid */
 356                         fstring name;
 357                         int type;
 358                 } name;
 359                 uid_t uid;          /* sid_to_uid */
 360                 gid_t gid;          /* sid_to_gid */
 361                 struct winbindd_info {
 362                         char winbind_separator;
 363                         fstring samba_version;
 364                 } info;
 365                 fstring domain_name;
 366                 fstring netbios_name;
 367                 fstring dc_name;
 368
 369                 struct auth_reply {
 370                         uint32 nt_status;
 371                         fstring nt_status_string;
 372                         fstring error_string;
 373                         int pam_error;
 374                         char user_session_key[16];
 375                         char first_8_lm_hash[8];
 376                         fstring krb5ccname;
 377                         uint32 reject_reason;
 378                         uint32 padding;
 379                         struct policy_settings {
 380                                 uint32 min_length_password;
 381                                 uint32 password_history;
 382                                 uint32 password_properties;
 383                                 uint32 padding;
 384                                 SMB_TIME_T expire;
 385                                 SMB_TIME_T min_passwordage;
 386                         } policy;
 387                         struct info3_text {
 388                                 SMB_TIME_T logon_time;
 389                                 SMB_TIME_T logoff_time;
 390                                 SMB_TIME_T kickoff_time;
 391                                 SMB_TIME_T pass_last_set_time;
 392                                 SMB_TIME_T pass_can_change_time;
 393                                 SMB_TIME_T pass_must_change_time;
 394                                 uint32 logon_count;
 395                                 uint32 bad_pw_count;
 396                                 uint32 user_rid;
 397                                 uint32 group_rid;
 398                                 uint32 num_groups;
 399                                 uint32 user_flgs;
 400                                 uint32 acct_flags;
 401                                 uint32 num_other_sids;
 402                                 fstring dom_sid;
 403                                 fstring user_name;
 404                                 fstring full_name;
 405                                 fstring logon_script;
 406                                 fstring profile_path;
 407                                 fstring home_dir;
 408                                 fstring dir_drive;
 409                                 fstring logon_srv;
 410                                 fstring logon_dom;
 411                         } info3;
 412                 } auth;
 413                 struct {
 414                         fstring name;
 415                         fstring alt_name;
 416                         fstring sid;
 417                         BOOL native_mode;
 418                         BOOL active_directory;
 419                         BOOL primary;
 420                         uint32 sequence_number;
 421                 } domain_info;
 422                 struct {
 423                         fstring acct_name;
 424                         fstring full_name;
 425                         fstring homedir;
 426                         fstring shell;
 427                         uint32 group_rid;
 428                 } user_info;
 429         } data;
 430
 431         /* Variable length return data */
 432
 433         union {
 434                 SMB_TIME_T padding;
 435                 void *data;
 436         } extra_data;
 437 };
 438
 439 struct WINBINDD_CCACHE_ENTRY {
 440         const char *principal_name;
 441         const char *ccname;
 442         const char *service;
 443         const char *username;
 444         const char *sid_string;
 445         char *pass;
 446         uid_t uid;
 447         time_t create_time;
 448         time_t renew_until;
 449         BOOL refresh_tgt;
 450         time_t refresh_time;
 451         struct timed_event *event;
 452         struct WINBINDD_CCACHE_ENTRY *next, *prev;
 453 };
 454
 455 #endif