/*
Unix SMB/Netbios implementation.
- Version 1.9.
+ Version 3.0
Password and authentication handling
- Copyright (C) Jeremy Allison 1996-1998
- Copyright (C) Luke Kenneth Casson Leighton 1996-1998
+ Copyright (C) Jeremy Allison 1996-2001
+ Copyright (C) Luke Kenneth Casson Leighton 1996-1998
+ Copyright (C) Gerald (Jerry) Carter 2000-2001
+ Copyright (C) Andrew Bartlett 2001-2002
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
*/
#include "includes.h"
-#include "nterr.h"
-
-extern int DEBUGLEVEL;
-extern DOM_SID global_sam_sid;
/*
- * NOTE. All these functions are abstracted into a structure
- * that points to the correct function for the selected database. JRA.
- *
- * NOTE. for the get/mod/add functions, there are two sets of functions.
- * one supports struct sam_passwd, the other supports struct smb_passwd.
- * for speed optimisation it is best to support both these sets.
- *
- * it is, however, optional to support one set but not the other: there
- * is conversion-capability built in to passdb.c, and run-time error
- * detection for when neither are supported.
- *
- * password database writers are recommended to implement the sam_passwd
- * functions in a first pass, as struct sam_passwd contains more
- * information, needed by the NT Domain support.
- *
- * an API writer is expected to create either one set (struct smb_passwd) or
- * the other (struct sam_passwd) OR both, and optionally also to write display
- * info routines * (struct sam_disp_info). functions which the API writer
- * chooses NOT to write must be wrapped in conversion functions (pwdb_x_to_y)
- * such that API users can call any function and still get valid results.
- *
- * the password API does NOT fill in the gaps if you set an API function
- * to NULL: it will deliberately attempt to call the NULL function.
- *
+ * This is set on startup - it defines the SID for this
+ * machine, and therefore the SAM database for which it is
+ * responsible.
*/
-static struct smb_passdb_ops *pwdb_ops;
+extern DOM_SID global_sam_sid;
+
+struct passdb_ops *pdb_ops;
+
+#if 0 /* JERRY */
+static void* pdb_handle = NULL;
+#endif
/***************************************************************
- Initialise the password db operations.
+ Initialize the password db operations.
***************************************************************/
-BOOL initialise_password_db(void)
+BOOL initialize_password_db(BOOL reload)
+{
+ /*
+ * This function is unfinished right now, so just
+ * ignore the details and always return True. It
+ * is here only as a placeholder --jerry
+ */
+ return True;
+
+}
+
+
+/************************************************************
+ Fill the SAM_ACCOUNT with default values.
+ ***********************************************************/
+
+static BOOL pdb_fill_default_sam(SAM_ACCOUNT *user)
+{
+ if (user == NULL) {
+ DEBUG(0,("pdb_fill_default_sam: SAM_ACCOUNT was NULL\n"));
+ return False;
+ }
+
+ ZERO_STRUCTP(user);
+
+ /* Don't change these timestamp settings without a good reason.
+ They are important for NT member server compatibility. */
+
+ user->private.init_flag = FLAG_SAM_UNINIT;
+ user->private.uid = user->private.gid = -1;
+
+ user->private.logon_time = (time_t)0;
+ user->private.pass_last_set_time = (time_t)0;
+ user->private.pass_can_change_time = (time_t)0;
+ user->private.logoff_time =
+ user->private.kickoff_time =
+ user->private.pass_must_change_time = get_time_t_max();
+ user->private.unknown_3 = 0x00ffffff; /* don't know */
+ user->private.logon_divs = 168; /* hours per week */
+ user->private.hours_len = 21; /* 21 times 8 bits = 168 */
+ memset(user->private.hours, 0xff, user->private.hours_len); /* available at all hours */
+ user->private.unknown_5 = 0x00000000; /* don't know */
+ user->private.unknown_6 = 0x000004ec; /* don't know */
+ return True;
+}
+
+
+/*************************************************************
+ Alloc memory and initialises a struct sam_passwd.
+ ************************************************************/
+
+BOOL pdb_init_sam(SAM_ACCOUNT **user)
+{
+ if (*user != NULL) {
+ DEBUG(0,("pdb_init_sam: SAM_ACCOUNT was non NULL\n"));
+#if 0
+ smb_panic("NULL pointer passed to pdb_init_sam\n");
+#endif
+ return False;
+ }
+
+ *user=(SAM_ACCOUNT *)malloc(sizeof(SAM_ACCOUNT));
+
+ if (*user==NULL) {
+ DEBUG(0,("pdb_init_sam: error while allocating memory\n"));
+ return False;
+ }
+
+ pdb_fill_default_sam(*user);
+
+ return True;
+}
+
+
+/*************************************************************
+ Initialises a struct sam_passwd with sane values.
+ ************************************************************/
+
+BOOL pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
{
- if (pwdb_ops)
- {
- return True;
- }
-
-#ifdef WITH_NISPLUS
- pwdb_ops = nisplus_initialise_password_db();
-#elif defined(WITH_LDAP)
- pwdb_ops = ldap_initialise_password_db();
-#elif defined(USE_SMBPASS_DB)
- pwdb_ops = file_initialise_password_db();
-#endif
-
- return (pwdb_ops != NULL);
+ pstring str;
+ GROUP_MAP map;
+ uint32 rid;
+
+ if (!pwd) {
+ new_sam_acct = NULL;
+ return False;
+ }
+
+ if (!pdb_init_sam(new_sam_acct)) {
+ new_sam_acct = NULL;
+ return False;
+ }
+
+ pdb_set_username(*new_sam_acct, pwd->pw_name);
+ pdb_set_fullname(*new_sam_acct, pwd->pw_gecos);
+
+ pdb_set_uid(*new_sam_acct, pwd->pw_uid);
+ pdb_set_gid(*new_sam_acct, pwd->pw_gid);
+
+ pdb_set_user_rid(*new_sam_acct, pdb_uid_to_user_rid(pwd->pw_uid));
+
+ /* call the mapping code here */
+ if(get_group_map_from_gid(pwd->pw_gid, &map, MAPPING_WITHOUT_PRIV)) {
+ sid_peek_rid(&map.sid, &rid);
+ }
+ else {
+ rid=pdb_gid_to_group_rid(pwd->pw_gid);
+ }
+
+ pdb_set_group_rid(*new_sam_acct, rid);
+
+ pstrcpy(str, lp_logon_path());
+ standard_sub_advanced(-1, pwd->pw_name, "", pwd->pw_gid, pwd->pw_name, str);
+ pdb_set_profile_path(*new_sam_acct, str, False);
+
+ pstrcpy(str, lp_logon_home());
+ standard_sub_advanced(-1, pwd->pw_name, "", pwd->pw_gid, pwd->pw_name, str);
+ pdb_set_homedir(*new_sam_acct, str, False);
+
+ pstrcpy(str, lp_logon_drive());
+ standard_sub_advanced(-1, pwd->pw_name, "", pwd->pw_gid, pwd->pw_name, str);
+ pdb_set_dir_drive(*new_sam_acct, str, False);
+
+ pstrcpy(str, lp_logon_script());
+ standard_sub_advanced(-1, pwd->pw_name, "", pwd->pw_gid, pwd->pw_name, str);
+ pdb_set_logon_script(*new_sam_acct, str, False);
+
+ return True;
}
-/*
- * Functions that return/manipulate a struct smb_passwd.
- */
-/************************************************************************
- Utility function to search smb passwd by uid. use this if your database
- does not have search facilities.
-*************************************************************************/
+/**
+ * Free the contets of the SAM_ACCOUNT, but not the structure.
+ *
+ * Also wipes the LM and NT hashes from memory.
+ *
+ * @param user SAM_ACCOUNT to free members of.
+ **/
-struct smb_passwd *iterate_getsmbpwuid(uid_t unix_uid)
+static BOOL pdb_free_sam_contents(SAM_ACCOUNT *user)
{
- struct smb_passwd *pwd = NULL;
- void *fp = NULL;
+ if (user == NULL) {
+ DEBUG(0,("pdb_free_sam_contents: SAM_ACCOUNT was NULL\n"));
+#if 0
+ smb_panic("NULL pointer passed to pdb_free_sam_contents\n");
+#endif
+ return False;
+ }
+
+ /* As we start mallocing more strings this is where
+ we should free them. */
+
+ data_blob_clear_free(&(user->private.lm_pw));
+ data_blob_clear_free(&(user->private.nt_pw));
+
+ return True;
+}
+
- DEBUG(10, ("search by unix_uid: %x\n", (int)unix_uid));
+/************************************************************
+ Reset the SAM_ACCOUNT and free the NT/LM hashes.
+ ***********************************************************/
- /* Open the smb password database - not for update. */
- fp = startsmbpwent(False);
+BOOL pdb_reset_sam(SAM_ACCOUNT *user)
+{
+ if (user == NULL) {
+ DEBUG(0,("pdb_reset_sam: SAM_ACCOUNT was NULL\n"));
+#if 0
+ smb_panic("NULL pointer passed to pdb_free_sam\n");
+#endif
+ return False;
+ }
+
+ if (!pdb_free_sam_contents(user)) {
+ return False;
+ }
- if (fp == NULL)
- {
- DEBUG(0, ("unable to open smb password database.\n"));
- return NULL;
+ if (!pdb_fill_default_sam(user)) {
+ return False;
}
- while ((pwd = getsmbpwent(fp)) != NULL && pwd->unix_uid != unix_uid)
- {
+ return True;
+}
+
+
+/************************************************************
+ Free the SAM_ACCOUNT and the member pointers.
+ ***********************************************************/
+
+BOOL pdb_free_sam(SAM_ACCOUNT **user)
+{
+ if (*user == NULL) {
+ DEBUG(0,("pdb_free_sam: SAM_ACCOUNT was NULL\n"));
+#if 0
+ smb_panic("NULL pointer passed to pdb_free_sam\n");
+#endif
+ return False;
}
- if (pwd != NULL)
- {
- DEBUG(10, ("found by unix_uid: %x\n", (int)unix_uid));
+ if (!pdb_free_sam_contents(*user)) {
+ return False;
}
- endsmbpwent(fp);
- return pwd;
+ SAFE_FREE(*user);
+
+ return True;
}
-/************************************************************************
- Utility function to search smb passwd by name. use this if your database
- does not have search facilities.
-*************************************************************************/
-struct smb_passwd *iterate_getsmbpwnam(const char *name)
+/**********************************************************
+ Encode the account control bits into a string.
+ length = length of string to encode into (including terminating
+ null). length *MUST BE MORE THAN 2* !
+ **********************************************************/
+
+char *pdb_encode_acct_ctrl(uint16 acct_ctrl, size_t length)
+{
+ static fstring acct_str;
+ size_t i = 0;
+
+ acct_str[i++] = '[';
+
+ if (acct_ctrl & ACB_PWNOTREQ ) acct_str[i++] = 'N';
+ if (acct_ctrl & ACB_DISABLED ) acct_str[i++] = 'D';
+ if (acct_ctrl & ACB_HOMDIRREQ) acct_str[i++] = 'H';
+ if (acct_ctrl & ACB_TEMPDUP ) acct_str[i++] = 'T';
+ if (acct_ctrl & ACB_NORMAL ) acct_str[i++] = 'U';
+ if (acct_ctrl & ACB_MNS ) acct_str[i++] = 'M';
+ if (acct_ctrl & ACB_WSTRUST ) acct_str[i++] = 'W';
+ if (acct_ctrl & ACB_SVRTRUST ) acct_str[i++] = 'S';
+ if (acct_ctrl & ACB_AUTOLOCK ) acct_str[i++] = 'L';
+ if (acct_ctrl & ACB_PWNOEXP ) acct_str[i++] = 'X';
+ if (acct_ctrl & ACB_DOMTRUST ) acct_str[i++] = 'I';
+
+ for ( ; i < length - 2 ; i++ )
+ acct_str[i] = ' ';
+
+ i = length - 2;
+ acct_str[i++] = ']';
+ acct_str[i++] = '\0';
+
+ return acct_str;
+}
+
+/**********************************************************
+ Decode the account control bits from a string.
+ **********************************************************/
+
+uint16 pdb_decode_acct_ctrl(const char *p)
{
- struct smb_passwd *pwd = NULL;
- void *fp = NULL;
+ uint16 acct_ctrl = 0;
+ BOOL finished = False;
- DEBUG(10, ("search by name: %s\n", name));
+ /*
+ * Check if the account type bits have been encoded after the
+ * NT password (in the form [NDHTUWSLXI]).
+ */
- /* Open the sam password file - not for update. */
- fp = startsmbpwent(False);
+ if (*p != '[')
+ return 0;
- if (fp == NULL)
- {
- DEBUG(0, ("unable to open smb password database.\n"));
- return NULL;
+ for (p++; *p && !finished; p++) {
+ switch (*p) {
+ case 'N': { acct_ctrl |= ACB_PWNOTREQ ; break; /* 'N'o password. */ }
+ case 'D': { acct_ctrl |= ACB_DISABLED ; break; /* 'D'isabled. */ }
+ case 'H': { acct_ctrl |= ACB_HOMDIRREQ; break; /* 'H'omedir required. */ }
+ case 'T': { acct_ctrl |= ACB_TEMPDUP ; break; /* 'T'emp account. */ }
+ case 'U': { acct_ctrl |= ACB_NORMAL ; break; /* 'U'ser account (normal). */ }
+ case 'M': { acct_ctrl |= ACB_MNS ; break; /* 'M'NS logon user account. What is this ? */ }
+ case 'W': { acct_ctrl |= ACB_WSTRUST ; break; /* 'W'orkstation account. */ }
+ case 'S': { acct_ctrl |= ACB_SVRTRUST ; break; /* 'S'erver account. */ }
+ case 'L': { acct_ctrl |= ACB_AUTOLOCK ; break; /* 'L'ocked account. */ }
+ case 'X': { acct_ctrl |= ACB_PWNOEXP ; break; /* No 'X'piry on password */ }
+ case 'I': { acct_ctrl |= ACB_DOMTRUST ; break; /* 'I'nterdomain trust account. */ }
+ case ' ': { break; }
+ case ':':
+ case '\n':
+ case '\0':
+ case ']':
+ default: { finished = True; }
+ }
}
- while ((pwd = getsmbpwent(fp)) != NULL && !strequal(pwd->unix_name, name))
- {
- DEBUG(10, ("iterate: %s 0x%x\n", pwd->unix_name, pwd->unix_uid));
+ return acct_ctrl;
+}
+
+/*************************************************************
+ Routine to set 32 hex password characters from a 16 byte array.
+**************************************************************/
+
+void pdb_sethexpwd(char *p, const unsigned char *pwd, uint16 acct_ctrl)
+{
+ if (pwd != NULL) {
+ int i;
+ for (i = 0; i < 16; i++)
+ slprintf(&p[i*2], 3, "%02X", pwd[i]);
+ } else {
+ if (acct_ctrl & ACB_PWNOTREQ)
+ safe_strcpy(p, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX", 33);
+ else
+ safe_strcpy(p, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", 33);
+ }
+}
+
+/*************************************************************
+ Routine to get the 32 hex characters and turn them
+ into a 16 byte array.
+**************************************************************/
+
+BOOL pdb_gethexpwd(const char *p, unsigned char *pwd)
+{
+ int i;
+ unsigned char lonybble, hinybble;
+ char *hexchars = "0123456789ABCDEF";
+ char *p1, *p2;
+
+ if (!p)
+ return (False);
+
+ for (i = 0; i < 32; i += 2) {
+ hinybble = toupper(p[i]);
+ lonybble = toupper(p[i + 1]);
+
+ p1 = strchr(hexchars, hinybble);
+ p2 = strchr(hexchars, lonybble);
+
+ if (!p1 || !p2)
+ return (False);
+
+ hinybble = PTR_DIFF(p1, hexchars);
+ lonybble = PTR_DIFF(p2, hexchars);
+
+ pwd[i / 2] = (hinybble << 4) | lonybble;
}
+ return (True);
+}
- if (pwd != NULL)
- {
- DEBUG(10, ("found by name: %s\n", name));
+/*******************************************************************
+ Group and User RID username mapping function
+ ********************************************************************/
+
+BOOL pdb_name_to_rid(const char *user_name, uint32 *u_rid, uint32 *g_rid)
+{
+ GROUP_MAP map;
+ struct passwd *pw = Get_Pwnam(user_name);
+
+ if (u_rid == NULL || g_rid == NULL || user_name == NULL)
+ return False;
+
+ if (!pw) {
+ DEBUG(1,("Username %s is invalid on this system\n", user_name));
+ return False;
}
- endsmbpwent(fp);
- return pwd;
+ /* turn the unix UID into a Domain RID. this is what the posix
+ sub-system does (adds 1000 to the uid) */
+ *u_rid = pdb_uid_to_user_rid(pw->pw_uid);
+
+ /* absolutely no idea what to do about the unix GID to Domain RID mapping */
+ /* map it ! */
+ if (get_group_map_from_gid(pw->pw_gid, &map, MAPPING_WITHOUT_PRIV)) {
+ sid_peek_rid(&map.sid, g_rid);
+ } else
+ *g_rid = pdb_gid_to_group_rid(pw->pw_gid);
+
+ return True;
}
-/***************************************************************
- Start to enumerate the smb or sam passwd list. Returns a void pointer
- to ensure no modification outside this module.
+/*******************************************************************
+ Converts NT user RID to a UNIX uid.
+ ********************************************************************/
+
+uid_t pdb_user_rid_to_uid(uint32 user_rid)
+{
+ return (uid_t)(((user_rid & (~USER_RID_TYPE))- 1000)/RID_MULTIPLIER);
+}
- Note that currently it is being assumed that a pointer returned
- from this function may be used to enumerate struct sam_passwd
- entries as well as struct smb_passwd entries. This may need
- to change. JRA.
-****************************************************************/
+/*******************************************************************
+ Converts NT group RID to a UNIX gid.
+ ********************************************************************/
-void *startsmbpwent(BOOL update)
+gid_t pdb_group_rid_to_gid(uint32 group_rid)
{
- return pwdb_ops->startsmbpwent(update);
+ return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- 1000)/RID_MULTIPLIER);
}
-/***************************************************************
- End enumeration of the smb or sam passwd list.
+/*******************************************************************
+ converts UNIX uid to an NT User RID.
+ ********************************************************************/
- Note that currently it is being assumed that a pointer returned
- from this function may be used to enumerate struct sam_passwd
- entries as well as struct smb_passwd entries. This may need
- to change. JRA.
+uint32 pdb_uid_to_user_rid(uid_t uid)
+{
+ return (((((uint32)uid)*RID_MULTIPLIER) + 1000) | USER_RID_TYPE);
+}
-****************************************************************/
+/*******************************************************************
+ converts NT Group RID to a UNIX uid.
+
+ warning: you must not call that function only
+ you must do a call to the group mapping first.
+ there is not anymore a direct link between the gid and the rid.
+ ********************************************************************/
-void endsmbpwent(void *vp)
+uint32 pdb_gid_to_group_rid(gid_t gid)
{
- pwdb_ops->endsmbpwent(vp);
+ return (((((uint32)gid)*RID_MULTIPLIER) + 1000) | GROUP_RID_TYPE);
}
-SMB_BIG_UINT getsmbpwpos(void *vp)
+/*******************************************************************
+ Decides if a RID is a well known RID.
+ ********************************************************************/
+
+static BOOL pdb_rid_is_well_known(uint32 rid)
{
- return pwdb_ops->getsmbpwpos(vp);
+ return (rid < 1000);
}
-BOOL setsmbpwpos(void *vp, SMB_BIG_UINT tok)
+/*******************************************************************
+ Decides if a RID is a user or group RID.
+ ********************************************************************/
+
+BOOL pdb_rid_is_user(uint32 rid)
{
- return pwdb_ops->setsmbpwpos(vp, tok);
+ /* lkcl i understand that NT attaches an enumeration to a RID
+ * such that it can be identified as either a user, group etc
+ * type. there are 5 such categories, and they are documented.
+ */
+ if(pdb_rid_is_well_known(rid)) {
+ /*
+ * The only well known user RIDs are DOMAIN_USER_RID_ADMIN
+ * and DOMAIN_USER_RID_GUEST.
+ */
+ if(rid == DOMAIN_USER_RID_ADMIN || rid == DOMAIN_USER_RID_GUEST)
+ return True;
+ } else if((rid & RID_TYPE_MASK) == USER_RID_TYPE) {
+ return True;
+ }
+ return False;
}
-/*************************************************************************
- Routine to return the next entry in the smb passwd list.
- *************************************************************************/
+/*******************************************************************
+ Convert a rid into a name. Used in the lookup SID rpc.
+ ********************************************************************/
-struct smb_passwd *getsmbpwent(void *vp)
+BOOL local_lookup_sid(DOM_SID *sid, char *name, enum SID_NAME_USE *psid_name_use)
{
- return pwdb_smb_map_names(pwdb_ops->getsmbpwent(vp));
+ uint32 rid;
+ BOOL is_user;
+
+ sid_peek_rid(sid, &rid);
+ is_user = pdb_rid_is_user(rid);
+ *psid_name_use = SID_NAME_UNKNOWN;
+
+ DEBUG(5,("local_lookup_sid: looking up %s RID %u.\n", is_user ? "user" :
+ "group", (unsigned int)rid));
+
+ if(is_user) {
+ if(rid == DOMAIN_USER_RID_ADMIN) {
+ pstring admin_users;
+ char *p = admin_users;
+ *psid_name_use = SID_NAME_USER;
+ if(!next_token(&p, name, NULL, sizeof(fstring)))
+ fstrcpy(name, "Administrator");
+ } else if (rid == DOMAIN_USER_RID_GUEST) {
+ pstring guest_users;
+ char *p = guest_users;
+ *psid_name_use = SID_NAME_USER;
+ if(!next_token(&p, name, NULL, sizeof(fstring)))
+ fstrcpy(name, "Guest");
+ } else {
+ uid_t uid;
+ struct passwd *pass;
+
+ /*
+ * Don't try to convert the rid to a name if
+ * running in appliance mode
+ */
+ if (lp_hide_local_users())
+ return False;
+
+ uid = pdb_user_rid_to_uid(rid);
+ pass = sys_getpwuid(uid);
+
+ *psid_name_use = SID_NAME_USER;
+
+ DEBUG(5,("local_lookup_sid: looking up uid %u %s\n", (unsigned int)uid,
+ pass ? "succeeded" : "failed" ));
+
+ if(!pass) {
+ slprintf(name, sizeof(fstring)-1, "unix_user.%u", (unsigned int)uid);
+ return True;
+ }
+
+ fstrcpy(name, pass->pw_name);
+
+ DEBUG(5,("local_lookup_sid: found user %s for rid %u\n", name,
+ (unsigned int)rid ));
+ }
+
+ } else {
+ gid_t gid;
+ struct group *gr;
+ GROUP_MAP map;
+
+ /*
+ * Don't try to convert the rid to a name if running
+ * in appliance mode
+ */
+
+ if (lp_hide_local_users())
+ return False;
+
+ /* check if it's a mapped group */
+ if (get_group_map_from_sid(*sid, &map, MAPPING_WITHOUT_PRIV)) {
+ if (map.gid!=-1) {
+ DEBUG(5,("local_lookup_sid: mapped group %s to gid %u\n", map.nt_name, (unsigned int)map.gid));
+ fstrcpy(name, map.nt_name);
+ *psid_name_use = map.sid_name_use;
+ return True;
+ }
+ }
+
+ gid = pdb_group_rid_to_gid(rid);
+ gr = getgrgid(gid);
+
+ *psid_name_use = SID_NAME_ALIAS;
+
+ DEBUG(5,("local_lookup_sid: looking up gid %u %s\n", (unsigned int)gid,
+ gr ? "succeeded" : "failed" ));
+
+ if(!gr) {
+ slprintf(name, sizeof(fstring)-1, "unix_group.%u", (unsigned int)gid);
+ return False;
+ }
+
+ fstrcpy( name, gr->gr_name);
+
+ DEBUG(5,("local_lookup_sid: found group %s for rid %u\n", name,
+ (unsigned int)rid ));
+ }
+
+ return True;
}
-/************************************************************************
- Routine to add an entry to the smb passwd file.
-*************************************************************************/
+/*******************************************************************
+ Convert a name into a SID. Used in the lookup name rpc.
+ ********************************************************************/
-BOOL add_smbpwd_entry(struct smb_passwd *newpwd)
+BOOL local_lookup_name(const char *c_domain, const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
{
- return pwdb_ops->add_smbpwd_entry(pwdb_smb_map_names(newpwd));
+ extern DOM_SID global_sid_World_Domain;
+ struct passwd *pass = NULL;
+ DOM_SID local_sid;
+ fstring user;
+ fstring domain;
+
+ *psid_name_use = SID_NAME_UNKNOWN;
+
+ /*
+ * domain and user may be quoted const strings, and map_username and
+ * friends can modify them. Make a modifiable copy. JRA.
+ */
+
+ fstrcpy(domain, c_domain);
+ fstrcpy(user, c_user);
+
+ sid_copy(&local_sid, &global_sam_sid);
+
+ /*
+ * Special case for MACHINE\Everyone. Map to the world_sid.
+ */
+
+ if(strequal(user, "Everyone")) {
+ sid_copy( psid, &global_sid_World_Domain);
+ sid_append_rid(psid, 0);
+ *psid_name_use = SID_NAME_ALIAS;
+ return True;
+ }
+
+ /*
+ * Don't lookup local unix users if running in appliance mode
+ */
+ if (lp_hide_local_users())
+ return False;
+
+ (void)map_username(user);
+
+ if((pass = Get_Pwnam(user))) {
+ sid_append_rid( &local_sid, pdb_uid_to_user_rid(pass->pw_uid));
+ *psid_name_use = SID_NAME_USER;
+ } else {
+ /*
+ * Maybe it was a group ?
+ */
+ struct group *grp;
+ GROUP_MAP map;
+
+ /* check if it's a mapped group */
+ if (get_group_map_from_ntname(user, &map, MAPPING_WITHOUT_PRIV)) {
+ if (map.gid!=-1) {
+ /* yes it's a mapped group to a valid unix group */
+ sid_copy(&local_sid, &map.sid);
+ *psid_name_use = map.sid_name_use;
+ }
+ else
+ /* it's a correct name but not mapped so it points to nothing*/
+ return False;
+ } else {
+ /* it's not a mapped group */
+ grp = getgrnam(user);
+ if(!grp)
+ return False;
+
+ /*
+ *check if it's mapped, if it is reply it doesn't exist
+ *
+ * that's to prevent this case:
+ *
+ * unix group ug is mapped to nt group ng
+ * someone does a lookup on ug
+ * we must not reply as it doesn't "exist" anymore
+ * for NT. For NT only ng exists.
+ * JFM, 30/11/2001
+ */
+
+ if(get_group_map_from_gid(grp->gr_gid, &map, MAPPING_WITHOUT_PRIV)){
+ return False;
+ }
+
+ sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
+ *psid_name_use = SID_NAME_ALIAS;
+ }
+ }
+
+ sid_copy( psid, &local_sid);
+
+ return True;
}
-/************************************************************************
- Routine to search the smb passwd file for an entry matching the username.
- and then modify its password entry. We can't use the startsampwent()/
- getsampwent()/endsampwent() interfaces here as we depend on looking
- in the actual file to decide how much room we have to write data.
- override = False, normal
- override = True, override XXXXXXXX'd out password or NO PASS
-************************************************************************/
+/****************************************************************************
+ Convert a uid to SID - locally.
+****************************************************************************/
-BOOL mod_smbpwd_entry(struct smb_passwd* pwd, BOOL override)
+DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
{
- return pwdb_ops->mod_smbpwd_entry(pwdb_smb_map_names(pwd), override);
+ extern DOM_SID global_sam_sid;
+
+ sid_copy(psid, &global_sam_sid);
+ sid_append_rid(psid, pdb_uid_to_user_rid(uid));
+
+ return psid;
}
-/************************************************************************
- Routine to search smb passwd by name.
-*************************************************************************/
+/****************************************************************************
+ Convert a SID to uid - locally.
+****************************************************************************/
-struct smb_passwd *getsmbpwnam(const char *name)
+BOOL local_sid_to_uid(uid_t *puid, DOM_SID *psid, enum SID_NAME_USE *name_type)
{
- return pwdb_smb_map_names(pwdb_ops->getsmbpwnam(name));
+ extern DOM_SID global_sam_sid;
+
+ DOM_SID dom_sid;
+ uint32 rid;
+ fstring str;
+ struct passwd *pass;
+
+ *name_type = SID_NAME_UNKNOWN;
+
+ sid_copy(&dom_sid, psid);
+ sid_split_rid(&dom_sid, &rid);
+
+ if (!pdb_rid_is_user(rid))
+ return False;
+
+ /*
+ * We can only convert to a uid if this is our local
+ * Domain SID (ie. we are the controling authority).
+ */
+ if (!sid_equal(&global_sam_sid, &dom_sid))
+ return False;
+
+ *puid = pdb_user_rid_to_uid(rid);
+
+ /*
+ * Ensure this uid really does exist.
+ */
+ if(!(pass = sys_getpwuid(*puid)))
+ return False;
+
+ DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_to_string( str, psid),
+ (unsigned int)*puid, pass->pw_name ));
+
+ *name_type = SID_NAME_USER;
+
+ return True;
}
-/************************************************************************
- Routine to search smb passwd by uid.
-*************************************************************************/
+/****************************************************************************
+ Convert a gid to SID - locally.
+****************************************************************************/
-struct smb_passwd *getsmbpwuid(uid_t unix_uid)
+DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
{
- return pwdb_smb_map_names(pwdb_ops->getsmbpwuid(unix_uid));
+ extern DOM_SID global_sam_sid;
+ GROUP_MAP map;
+
+ sid_copy(psid, &global_sam_sid);
+
+ if (get_group_map_from_gid(gid, &map, MAPPING_WITHOUT_PRIV)) {
+ sid_copy(psid, &map.sid);
+ }
+ else {
+ sid_append_rid(psid, pdb_gid_to_group_rid(gid));
+ }
+
+ return psid;
+}
+
+/****************************************************************************
+ Convert a SID to gid - locally.
+****************************************************************************/
+
+BOOL local_sid_to_gid(gid_t *pgid, DOM_SID *psid, enum SID_NAME_USE *name_type)
+{
+ extern DOM_SID global_sam_sid;
+ DOM_SID dom_sid;
+ uint32 rid;
+ fstring str;
+ struct group *grp;
+ GROUP_MAP map;
+
+ *name_type = SID_NAME_UNKNOWN;
+
+ sid_copy(&dom_sid, psid);
+ sid_split_rid(&dom_sid, &rid);
+
+ /*
+ * We can only convert to a gid if this is our local
+ * Domain SID (ie. we are the controling authority).
+ *
+ * Or in the Builtin SID too. JFM, 11/30/2001
+ */
+
+ if (!sid_equal(&global_sam_sid, &dom_sid))
+ return False;
+
+ if (pdb_rid_is_user(rid))
+ return False;
+
+ if (get_group_map_from_sid(*psid, &map, MAPPING_WITHOUT_PRIV)) {
+
+ /* the SID is in the mapping table but not mapped */
+ if (map.gid==-1)
+ return False;
+
+ sid_peek_rid(&map.sid, &rid);
+ *pgid = rid;
+ *name_type = map.sid_name_use;
+ } else {
+ *pgid = pdb_group_rid_to_gid(rid);
+ *name_type = SID_NAME_ALIAS;
+ }
+
+ /*
+ * Ensure this gid really does exist.
+ */
+
+ if(!(grp = getgrgid(*pgid)))
+ return False;
+
+ DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u) (%s).\n", sid_to_string( str, psid),
+ (unsigned int)*pgid, grp->gr_name ));
+
+ return True;
+}
+
+/**
+ * Quick hack to do an easy ucs2 -> mulitbyte conversion
+ * @return static buffer containing the converted string
+ **/
+
+static char *pdb_convert(const UNISTR2 *from)
+{
+ static pstring convert_buffer;
+ *convert_buffer = 0;
+ if (!from) {
+ return convert_buffer;
+ }
+
+ unistr2_to_ascii(convert_buffer, from, sizeof(pstring));
+ return convert_buffer;
}
/*************************************************************
- initialises a struct smb_passwd.
+ Copies a SAM_USER_INFO_23 to a SAM_ACCOUNT
**************************************************************/
-void pwdb_init_smb(struct smb_passwd *user)
+
+void copy_id23_to_sam_passwd(SAM_ACCOUNT *to, SAM_USER_INFO_23 *from)
{
- if (user == NULL) return;
- bzero(user, sizeof(*user));
- user->pass_last_set_time = (time_t)-1;
- user->unix_uid = (uid_t)-1;
- user->user_rid = 0xffffffff;
+
+ if (from == NULL || to == NULL)
+ return;
+
+ pdb_set_logon_time(to,nt_time_to_unix(&from->logon_time));
+ pdb_set_logoff_time(to,nt_time_to_unix(&from->logoff_time));
+ pdb_set_kickoff_time(to, nt_time_to_unix(&from->kickoff_time));
+ pdb_set_pass_last_set_time(to, nt_time_to_unix(&from->pass_last_set_time));
+ pdb_set_pass_can_change_time(to, nt_time_to_unix(&from->pass_can_change_time));
+ pdb_set_pass_must_change_time(to, nt_time_to_unix(&from->pass_must_change_time));
+
+ pdb_set_username(to , pdb_convert(&from->uni_user_name ));
+ pdb_set_fullname(to , pdb_convert(&from->uni_full_name ));
+ pdb_set_homedir(to , pdb_convert(&from->uni_home_dir ), True);
+ pdb_set_dir_drive(to , pdb_convert(&from->uni_dir_drive ), True);
+ pdb_set_logon_script(to , pdb_convert(&from->uni_logon_script), True);
+ pdb_set_profile_path(to , pdb_convert(&from->uni_profile_path), True);
+ pdb_set_acct_desc(to , pdb_convert(&from->uni_acct_desc ));
+ pdb_set_workstations(to , pdb_convert(&from->uni_workstations));
+ pdb_set_unknown_str(to , pdb_convert(&from->uni_unknown_str ));
+ pdb_set_munged_dial(to , pdb_convert(&from->uni_munged_dial ));
+
+ if (from->user_rid)
+ pdb_set_user_rid(to, from->user_rid);
+ if (from->group_rid)
+ pdb_set_group_rid(to, from->group_rid);
+
+ pdb_set_acct_ctrl(to, from->acb_info);
+ pdb_set_unknown_3(to, from->unknown_3);
+
+ pdb_set_logon_divs(to, from->logon_divs);
+ pdb_set_hours_len(to, from->logon_hrs.len);
+ pdb_set_hours(to, from->logon_hrs.hours);
+
+ pdb_set_unknown_5(to, from->unknown_5);
+ pdb_set_unknown_6(to, from->unknown_6);
}
+
/*************************************************************
- fills in missing details. one set of details _must_ exist.
+ Copies a sam passwd.
**************************************************************/
-struct smb_passwd *pwdb_smb_map_names(struct smb_passwd *smb)
+
+void copy_id21_to_sam_passwd(SAM_ACCOUNT *to, SAM_USER_INFO_21 *from)
{
- DOM_NAME_MAP gmep;
- BOOL found = False;
- DOM_SID sid;
- static fstring unix_name;
- static fstring nt_name;
+ if (from == NULL || to == NULL)
+ return;
- DEBUG(10,("pwdb_smb_map_names\n"));
+ pdb_set_logon_time(to,nt_time_to_unix(&from->logon_time));
+ pdb_set_logoff_time(to,nt_time_to_unix(&from->logoff_time));
+ pdb_set_kickoff_time(to, nt_time_to_unix(&from->kickoff_time));
+ pdb_set_pass_last_set_time(to, nt_time_to_unix(&from->pass_last_set_time));
+ pdb_set_pass_can_change_time(to, nt_time_to_unix(&from->pass_can_change_time));
+ pdb_set_pass_must_change_time(to, nt_time_to_unix(&from->pass_must_change_time));
- if (smb == NULL)
- {
- return NULL;
- }
+ pdb_set_username(to , pdb_convert(&from->uni_user_name ));
+ pdb_set_fullname(to , pdb_convert(&from->uni_full_name ));
+ pdb_set_homedir(to , pdb_convert(&from->uni_home_dir ), True);
+ pdb_set_dir_drive(to , pdb_convert(&from->uni_dir_drive ), True);
+ pdb_set_logon_script(to , pdb_convert(&from->uni_logon_script), True);
+ pdb_set_profile_path(to , pdb_convert(&from->uni_profile_path), True);
+ pdb_set_acct_desc(to , pdb_convert(&from->uni_acct_desc ));
+ pdb_set_workstations(to , pdb_convert(&from->uni_workstations));
+ pdb_set_unknown_str(to , pdb_convert(&from->uni_unknown_str ));
+ pdb_set_munged_dial(to , pdb_convert(&from->uni_munged_dial ));
- if (smb->unix_name == NULL && smb->nt_name == NULL &&
- smb->unix_uid == (uid_t)-1 && smb->user_rid == 0xffffffff)
- {
- return NULL;
- }
+ if (from->user_rid)
+ pdb_set_user_rid(to, from->user_rid);
+ if (from->group_rid)
+ pdb_set_group_rid(to, from->group_rid);
- if (!found && smb->unix_name != NULL)
- {
- found = lookupsmbpwnam(smb->unix_name, &gmep);
- }
- if (!found && smb->unix_uid != (uid_t)-1)
- {
- found = lookupsmbpwuid(smb->unix_uid , &gmep);
- }
+ /* FIXME!! Do we need to copy the passwords here as well?
+ I don't know. Need to figure this out --jerry */
+
+ /* Passwords dealt with in caller --abartlet */
+
+ pdb_set_acct_ctrl(to, from->acb_info);
+ pdb_set_unknown_3(to, from->unknown_3);
+
+ pdb_set_logon_divs(to, from->logon_divs);
+ pdb_set_hours_len(to, from->logon_hrs.len);
+ pdb_set_hours(to, from->logon_hrs.hours);
+
+ pdb_set_unknown_5(to, from->unknown_5);
+ pdb_set_unknown_6(to, from->unknown_6);
+}
+
+
+/*************************************************************
+ Change a password entry in the local smbpasswd file.
+
+ FIXME!! The function needs to be abstracted into the
+ passdb interface or something. It is currently being called
+ by _api_samr_create_user() in rpc_server/srv_samr.c,
+ in SWAT and by smbpasswd/pdbedit.
+
+ --jerry
+ *************************************************************/
+
+BOOL local_password_change(const char *user_name, int local_flags,
+ const char *new_passwd,
+ char *err_str, size_t err_str_len,
+ char *msg_str, size_t msg_str_len)
+{
+ struct passwd *pwd = NULL;
+ SAM_ACCOUNT *sam_pass=NULL;
- if (!found)
- {
- sid_copy(&sid, &global_sam_sid);
- sid_append_rid(&sid, smb->user_rid);
+ *err_str = '\0';
+ *msg_str = '\0';
+
+ /* Get the smb passwd entry for this user */
+ pdb_init_sam(&sam_pass);
+ if(!pdb_getsampwnam(sam_pass, user_name)) {
+ pdb_free_sam(&sam_pass);
+
+ if (local_flags & LOCAL_ADD_USER) {
+ /*
+ * Check for a local account - if we're adding only.
+ */
+
+ if(!(pwd = sys_getpwnam(user_name))) {
+ slprintf(err_str, err_str_len - 1, "User %s does not \
+exist in system password file (usually /etc/passwd). Cannot add \
+account without a valid local system user.\n", user_name);
+ return False;
+ }
+ } else {
+ slprintf(err_str, err_str_len-1,"Failed to find entry for user %s.\n", user_name);
+ return False;
+ }
+
+ if (!pdb_init_sam_pw(&sam_pass, pwd)) {
+ slprintf(err_str, err_str_len-1, "Failed initialise SAM_ACCOUNT for user %s.\n", user_name);
+ return False;
+ }
+
+
+ if (local_flags & LOCAL_TRUST_ACCOUNT) {
+ if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST)) {
+ slprintf(err_str, err_str_len - 1, "Failed to set 'trusted workstation account' flags for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ } else if (local_flags & LOCAL_INTERDOM_ACCOUNT) {
+ if (!pdb_set_acct_ctrl(sam_pass, ACB_DOMTRUST)) {
+ slprintf(err_str, err_str_len - 1, "Failed to set 'domain trust account' flags for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ } else {
+ if (!pdb_set_acct_ctrl(sam_pass, ACB_NORMAL)) {
+ slprintf(err_str, err_str_len - 1, "Failed to set 'normal account' flags for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ }
+
+ } else {
+ /* the entry already existed */
+ local_flags &= ~LOCAL_ADD_USER;
}
- if (!found && smb->user_rid != 0xffffffff)
- {
- found = lookupsmbpwsid (&sid , &gmep);
+ /*
+ * We are root - just write the new password
+ * and the valid last change time.
+ */
+
+ if (local_flags & LOCAL_DISABLE_USER) {
+ if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_DISABLED)) {
+ slprintf(err_str, err_str_len-1, "Failed to set 'disabled' flag for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ } else if (local_flags & LOCAL_ENABLE_USER) {
+ if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED))) {
+ slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
}
- if (!found && smb->nt_name != NULL)
- {
- found = lookupsmbpwntnam(smb->nt_name, &gmep);
+
+ if (local_flags & LOCAL_SET_NO_PASSWORD) {
+ if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ)) {
+ slprintf(err_str, err_str_len-1, "Failed to set 'no password required' flag for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ } else if (local_flags & LOCAL_SET_PASSWORD) {
+ /*
+ * If we're dealing with setting a completely empty user account
+ * ie. One with a password of 'XXXX', but not set disabled (like
+ * an account created from scratch) then if the old password was
+ * 'XX's then getsmbpwent will have set the ACB_DISABLED flag.
+ * We remove that as we're giving this user their first password
+ * and the decision hasn't really been made to disable them (ie.
+ * don't create them disabled). JRA.
+ */
+ if ((pdb_get_lanman_passwd(sam_pass)==NULL) && (pdb_get_acct_ctrl(sam_pass)&ACB_DISABLED)) {
+ if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_DISABLED))) {
+ slprintf(err_str, err_str_len-1, "Failed to unset 'disabled' flag for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ }
+ if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)&(~ACB_PWNOTREQ))) {
+ slprintf(err_str, err_str_len-1, "Failed to unset 'no password required' flag for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+
+ if (!pdb_set_plaintext_passwd (sam_pass, new_passwd)) {
+ slprintf(err_str, err_str_len-1, "Failed to set password for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ }
+
+ if (local_flags & LOCAL_ADD_USER) {
+ if (pdb_add_sam_account(sam_pass)) {
+ slprintf(msg_str, msg_str_len-1, "Added user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return True;
+ } else {
+ slprintf(err_str, err_str_len-1, "Failed to add entry for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ } else if (local_flags & LOCAL_DELETE_USER) {
+ if (!pdb_delete_sam_account(user_name)) {
+ slprintf(err_str,err_str_len-1, "Failed to delete entry for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ slprintf(msg_str, msg_str_len-1, "Deleted user %s.\n", user_name);
+ } else {
+ if(!pdb_update_sam_account(sam_pass, True)) {
+ slprintf(err_str, err_str_len-1, "Failed to modify entry for user %s.\n", user_name);
+ pdb_free_sam(&sam_pass);
+ return False;
+ }
+ if(local_flags & LOCAL_DISABLE_USER)
+ slprintf(msg_str, msg_str_len-1, "Disabled user %s.\n", user_name);
+ else if (local_flags & LOCAL_ENABLE_USER)
+ slprintf(msg_str, msg_str_len-1, "Enabled user %s.\n", user_name);
+ else if (local_flags & LOCAL_SET_NO_PASSWORD)
+ slprintf(msg_str, msg_str_len-1, "User %s password set to none.\n", user_name);
}
- if (!found)
- {
- return NULL;
+ pdb_free_sam(&sam_pass);
+ return True;
+}
+
+/***************************************************************************
+ Search by uid. Wrapper around pdb_getsampwnam()
+ **************************************************************************/
+
+BOOL pdb_getsampwuid (SAM_ACCOUNT* user, uid_t uid)
+{
+ struct passwd *pw;
+ fstring name;
+
+ if (user==NULL) {
+ DEBUG(0,("pdb_getsampwuid: SAM_ACCOUNT is NULL.\n"));
+ return False;
}
- if (!sid_front_equal(&global_sam_sid, &gmep.sid))
- {
- fstring sid_str;
- sid_to_string(sid_str, &gmep.sid);
- DEBUG(0,("UNIX User %s Primary Group is in the wrong domain! %s\n",
- smb->unix_name, sid_str));
- return NULL;
+ /*
+ * Never trust the uid in the passdb. Lookup the username first
+ * and then lokup the user by name in the sam.
+ */
+
+ if ((pw=sys_getpwuid(uid)) == NULL) {
+ DEBUG(0,("pdb_getsampwuid: getpwuid(%d) return NULL. User does not exist in Unix accounts!\n", uid));
+ return False;
}
+
+ fstrcpy (name, pw->pw_name);
- fstrcpy(unix_name, gmep.unix_name);
- fstrcpy(nt_name , gmep.nt_name );
- if (smb->unix_name == NULL ) smb->unix_name = unix_name;
- if (smb->nt_name == NULL ) smb->nt_name = nt_name ;
- if (smb->unix_uid == (uid_t)-1 ) smb->unix_uid = (uid_t)gmep.unix_id;
- if (smb->user_rid == 0xffffffff) sid_split_rid(&gmep.sid, &smb->user_rid);
+ return pdb_getsampwnam (user, name);
- return smb;
}
+
git.samba.org / ira / wip.git / blobdiff