+/*
+ Unix SMB/CIFS implementation.
+ Password and authentication handling
+ 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
+ Copyright (C) Simo Sorce 2003
+
+ 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; either version 2 of the License, or
+ (at your option) any later version.
+
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_PASSDB
+
+/******************************************************************
+ get the default domain/netbios name to be used when
+ testing authentication. For example, if you connect
+ to a Windows member server using a bogus domain name, the
+ Windows box will map the BOGUS\user to DOMAIN\user. A
+ standalone box will map to WKS\user.
+******************************************************************/
+
+const char *get_default_sam_name(void)
+{
+ /* standalone servers can only use the local netbios name */
+ if ( lp_server_role() == ROLE_STANDALONE )
+ return global_myname();
+
+ /* Windows domain members default to the DOMAIN
+ name when not specified */
+ return lp_workgroup();
+}
+
+/************************************************************
+ Fill the SAM_ACCOUNT with default values.
+ ***********************************************************/
+
+void pdb_fill_default_sam(SAM_ACCOUNT *user)
+{
+ ZERO_STRUCT(user->private_u); /* Don't touch the talloc context */
+
+ /* no initial methods */
+ user->methods = NULL;
+
+ /* Don't change these timestamp settings without a good reason.
+ They are important for NT member server compatibility. */
+
+ user->private_u.logon_time = (time_t)0;
+ user->private_u.pass_last_set_time = (time_t)0;
+ user->private_u.pass_can_change_time = (time_t)0;
+ user->private_u.logoff_time =
+ user->private_u.kickoff_time =
+ user->private_u.pass_must_change_time = get_time_t_max();
+ user->private_u.fields_present = 0x00ffffff;
+ user->private_u.logon_divs = 168; /* hours per week */
+ user->private_u.hours_len = 21; /* 21 times 8 bits = 168 */
+ memset(user->private_u.hours, 0xff, user->private_u.hours_len); /* available at all hours */
+ user->private_u.bad_password_count = 0;
+ user->private_u.logon_count = 0;
+ user->private_u.unknown_6 = 0x000004ec; /* don't know */
+
+ /* Some parts of samba strlen their pdb_get...() returns,
+ so this keeps the interface unchanged for now. */
+
+ user->private_u.username = "";
+ user->private_u.domain = "";
+ user->private_u.nt_username = "";
+ user->private_u.full_name = "";
+ user->private_u.home_dir = "";
+ user->private_u.logon_script = "";
+ user->private_u.profile_path = "";
+ user->private_u.acct_desc = "";
+ user->private_u.workstations = "";
+ user->private_u.unknown_str = "";
+ user->private_u.munged_dial = "";
+
+ user->private_u.plaintext_pw = NULL;
+
+ /*
+ Unless we know otherwise have a Account Control Bit
+ value of 'normal user'. This helps User Manager, which
+ asks for a filtered list of users.
+ */
+
+ user->private_u.acct_ctrl = ACB_NORMAL;
+}
+
+static void destroy_pdb_talloc(SAM_ACCOUNT **user)
+{
+ if (*user) {
+ data_blob_clear_free(&((*user)->private_u.lm_pw));
+ data_blob_clear_free(&((*user)->private_u.nt_pw));
+
+ if((*user)->private_u.plaintext_pw!=NULL)
+ memset((*user)->private_u.plaintext_pw,'\0',strlen((*user)->private_u.plaintext_pw));
+ talloc_destroy((*user)->mem_ctx);
+ *user = NULL;
+ }
+}
+
+
+/**********************************************************************
+ Allocates memory and initialises a struct sam_passwd on supplied mem_ctx.
+***********************************************************************/
+
+NTSTATUS pdb_init_sam_talloc(TALLOC_CTX *mem_ctx, SAM_ACCOUNT **user)
+{
+ if (*user != NULL) {
+ DEBUG(0,("pdb_init_sam_talloc: SAM_ACCOUNT was non NULL\n"));
+#if 0
+ smb_panic("non-NULL pointer passed to pdb_init_sam\n");
+#endif
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ if (!mem_ctx) {
+ DEBUG(0,("pdb_init_sam_talloc: mem_ctx was NULL!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ *user=TALLOC_P(mem_ctx, SAM_ACCOUNT);
+
+ if (*user==NULL) {
+ DEBUG(0,("pdb_init_sam_talloc: error while allocating memory\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*user)->mem_ctx = mem_ctx;
+
+ (*user)->free_fn = NULL;
+
+ pdb_fill_default_sam(*user);
+
+ return NT_STATUS_OK;
+}
+
+
+/*************************************************************
+ Allocates memory and initialises a struct sam_passwd.
+ ************************************************************/
+
+NTSTATUS pdb_init_sam(SAM_ACCOUNT **user)
+{
+ TALLOC_CTX *mem_ctx;
+ NTSTATUS nt_status;
+
+ mem_ctx = talloc_init("passdb internal SAM_ACCOUNT allocation");
+
+ if (!mem_ctx) {
+ DEBUG(0,("pdb_init_sam: error while doing talloc_init()\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_talloc(mem_ctx, user))) {
+ talloc_destroy(mem_ctx);
+ return nt_status;
+ }
+
+ (*user)->free_fn = destroy_pdb_talloc;
+
+ return NT_STATUS_OK;
+}
+
+/**************************************************************************
+ * This function will take care of all the steps needed to correctly
+ * allocate and set the user SID, please do use this function to create new
+ * users, messing with SIDs is not good.
+ *
+ * account_data must be provided initialized, pwd may be null.
+ * SSS
+ ***************************************************************************/
+
+static NTSTATUS pdb_set_sam_sids(SAM_ACCOUNT *account_data, const struct passwd *pwd)
+{
+ const char *guest_account = lp_guestaccount();
+ GROUP_MAP map;
+ BOOL ret;
+
+ if (!account_data || !pwd) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* this is a hack this thing should not be set
+ this way --SSS */
+ if (!(guest_account && *guest_account)) {
+ DEBUG(1, ("NULL guest account!?!?\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ } else {
+ /* Ensure this *must* be set right */
+ if (strcmp(pwd->pw_name, guest_account) == 0) {
+ if (!pdb_set_user_sid_from_rid(account_data, DOMAIN_USER_RID_GUEST, PDB_DEFAULT)) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ if (!pdb_set_group_sid_from_rid(account_data, DOMAIN_GROUP_RID_GUESTS, PDB_DEFAULT)) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ return NT_STATUS_OK;
+ }
+ }
+
+ if (!pdb_set_user_sid_from_rid(account_data, algorithmic_pdb_uid_to_user_rid(pwd->pw_uid), PDB_SET)) {
+ DEBUG(0,("Can't set User SID from RID!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* call the mapping code here */
+ become_root();
+ ret = pdb_getgrgid(&map, pwd->pw_gid);
+ unbecome_root();
+
+ if( ret ) {
+ if (!pdb_set_group_sid(account_data, &map.sid, PDB_SET)){
+ DEBUG(0,("Can't set Group SID!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ }
+ else {
+ if (!pdb_set_group_sid_from_rid(account_data, pdb_gid_to_group_rid(pwd->pw_gid), PDB_SET)) {
+ DEBUG(0,("Can't set Group SID\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*************************************************************
+ Initialises a struct sam_passwd with sane values.
+ ************************************************************/
+
+NTSTATUS pdb_fill_sam_pw(SAM_ACCOUNT *sam_account, const struct passwd *pwd)
+{
+ NTSTATUS ret;
+
+ if (!pwd) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ pdb_fill_default_sam(sam_account);
+
+ pdb_set_username(sam_account, pwd->pw_name, PDB_SET);
+ pdb_set_fullname(sam_account, pwd->pw_gecos, PDB_SET);
+
+ pdb_set_unix_homedir(sam_account, pwd->pw_dir, PDB_SET);
+
+ pdb_set_domain (sam_account, get_global_sam_name(), PDB_DEFAULT);
+
+ /* When we get a proper uid -> SID and SID -> uid allocation
+ mechinism, we should call it here.
+
+ We can't just set this to 0 or allow it only to be filled
+ in when added to the backend, because the user's SID
+ may already be in security descriptors etc.
+
+ -- abartlet 11-May-02
+ */
+
+ ret = pdb_set_sam_sids(sam_account, pwd);
+ if (!NT_STATUS_IS_OK(ret)) return ret;
+
+ /* check if this is a user account or a machine account */
+ if (pwd->pw_name[strlen(pwd->pw_name)-1] != '$')
+ {
+ pdb_set_profile_path(sam_account,
+ talloc_sub_specified((sam_account)->mem_ctx,
+ lp_logon_path(),
+ pwd->pw_name, global_myname(),
+ pwd->pw_uid, pwd->pw_gid),
+ PDB_DEFAULT);
+
+ pdb_set_homedir(sam_account,
+ talloc_sub_specified((sam_account)->mem_ctx,
+ lp_logon_home(),
+ pwd->pw_name, global_myname(),
+ pwd->pw_uid, pwd->pw_gid),
+ PDB_DEFAULT);
+
+ pdb_set_dir_drive(sam_account,
+ talloc_sub_specified((sam_account)->mem_ctx,
+ lp_logon_drive(),
+ pwd->pw_name, global_myname(),
+ pwd->pw_uid, pwd->pw_gid),
+ PDB_DEFAULT);
+
+ pdb_set_logon_script(sam_account,
+ talloc_sub_specified((sam_account)->mem_ctx,
+ lp_logon_script(),
+ pwd->pw_name, global_myname(),
+ pwd->pw_uid, pwd->pw_gid),
+ PDB_DEFAULT);
+ if (!pdb_set_acct_ctrl(sam_account, ACB_NORMAL, PDB_DEFAULT)) {
+ DEBUG(1, ("Failed to set 'normal account' flags for user %s.\n", pwd->pw_name));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ } else {
+ if (!pdb_set_acct_ctrl(sam_account, ACB_WSTRUST, PDB_DEFAULT)) {
+ DEBUG(1, ("Failed to set 'trusted workstation account' flags for user %s.\n", pwd->pw_name));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ }
+ return NT_STATUS_OK;
+}
+
+
+/*************************************************************
+ Initialises a struct sam_passwd with sane values.
+ ************************************************************/
+
+NTSTATUS pdb_init_sam_pw(SAM_ACCOUNT **new_sam_acct, const struct passwd *pwd)
+{
+ NTSTATUS nt_status;
+
+ if (!pwd) {
+ new_sam_acct = NULL;
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(new_sam_acct))) {
+ new_sam_acct = NULL;
+ return nt_status;
+ }
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*new_sam_acct, pwd))) {
+ pdb_free_sam(new_sam_acct);
+ new_sam_acct = NULL;
+ return nt_status;
+ }
+
+ return NT_STATUS_OK;
+}
+
+
+/*************************************************************
+ Initialises a SAM_ACCOUNT ready to add a new account, based
+ on the UNIX user. Pass in a RID if you have one
+ ************************************************************/
+
+NTSTATUS pdb_init_sam_new(SAM_ACCOUNT **new_sam_acct, const char *username,
+ uint32 rid)
+{
+ NTSTATUS nt_status = NT_STATUS_NO_MEMORY;
+ struct passwd *pwd;
+ BOOL ret;
+
+ pwd = Get_Pwnam(username);
+
+ if (!pwd)
+ return NT_STATUS_NO_SUCH_USER;
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(new_sam_acct, pwd))) {
+ *new_sam_acct = NULL;
+ return nt_status;
+ }
+
+ /* see if we need to generate a new rid using the 2.2 algorithm */
+ if ( rid == 0 && lp_enable_rid_algorithm() ) {
+ DEBUG(10,("pdb_init_sam_new: no RID specified. Generating one via old algorithm\n"));
+ rid = algorithmic_pdb_uid_to_user_rid(pwd->pw_uid);
+ }
+
+ /* set the new SID */
+
+ ret = pdb_set_user_sid_from_rid( *new_sam_acct, rid, PDB_SET );
+
+ return (ret ? NT_STATUS_OK : NT_STATUS_NO_SUCH_USER);
+}
+
+
+/**
+ * Free the contets of the SAM_ACCOUNT, but not the structure.
+ *
+ * Also wipes the LM and NT hashes and plaintext password from
+ * memory.
+ *
+ * @param user SAM_ACCOUNT to free members of.
+ **/
+
+static void pdb_free_sam_contents(SAM_ACCOUNT *user)
+{
+
+ /* Kill off sensitive data. Free()ed by the
+ talloc mechinism */
+
+ data_blob_clear_free(&(user->private_u.lm_pw));
+ data_blob_clear_free(&(user->private_u.nt_pw));
+ if (user->private_u.plaintext_pw!=NULL)
+ memset(user->private_u.plaintext_pw,'\0',strlen(user->private_u.plaintext_pw));
+
+ if (user->private_u.backend_private_data && user->private_u.backend_private_data_free_fn) {
+ user->private_u.backend_private_data_free_fn(&user->private_u.backend_private_data);
+ }
+}
+
+
+/************************************************************
+ Reset the SAM_ACCOUNT and free the NT/LM hashes.
+ ***********************************************************/
+
+NTSTATUS 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 NT_STATUS_UNSUCCESSFUL;
+ }
+
+ pdb_free_sam_contents(user);
+
+ pdb_fill_default_sam(user);
+
+ return NT_STATUS_OK;
+}
+
+
+/************************************************************
+ Free the SAM_ACCOUNT and the member pointers.
+ ***********************************************************/
+
+NTSTATUS 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 NT_STATUS_UNSUCCESSFUL;
+ }
+
+ pdb_free_sam_contents(*user);
+
+ if ((*user)->free_fn) {
+ (*user)->free_fn(user);
+ }
+
+ return NT_STATUS_OK;
+}
+
+/**********************************************************
+ 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;
+
+ SMB_ASSERT(length <= sizeof(acct_str));
+
+ 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)
+{
+ uint16 acct_ctrl = 0;
+ BOOL finished = False;
+
+ /*
+ * Check if the account type bits have been encoded after the
+ * NT password (in the form [NDHTUWSLXI]).
+ */
+
+ if (*p != '[')
+ return 0;
+
+ 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; }
+ }
+ }
+
+ 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;
+ const char *hexchars = "0123456789ABCDEF";
+ char *p1, *p2;
+
+ if (!p)
+ return (False);
+
+ for (i = 0; i < 32; i += 2) {
+ hinybble = toupper_ascii(p[i]);
+ lonybble = toupper_ascii(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);
+}
+
+/*************************************************************
+ Routine to set 42 hex hours characters from a 21 byte array.
+**************************************************************/
+
+void pdb_sethexhours(char *p, const unsigned char *hours)
+{
+ if (hours != NULL) {
+ int i;
+ for (i = 0; i < 21; i++) {
+ slprintf(&p[i*2], 3, "%02X", hours[i]);
+ }
+ } else {
+ safe_strcpy(p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 43);
+ }
+}
+
+/*************************************************************
+ Routine to get the 42 hex characters and turn them
+ into a 21 byte array.
+**************************************************************/
+
+BOOL pdb_gethexhours(const char *p, unsigned char *hours)
+{
+ int i;
+ unsigned char lonybble, hinybble;
+ const char *hexchars = "0123456789ABCDEF";
+ char *p1, *p2;
+
+ if (!p) {
+ return (False);
+ }
+
+ for (i = 0; i < 42; i += 2) {
+ hinybble = toupper_ascii(p[i]);
+ lonybble = toupper_ascii(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);
+
+ hours[i / 2] = (hinybble << 4) | lonybble;
+ }
+ return (True);
+}
+
+int algorithmic_rid_base(void)
+{
+ static int rid_offset = 0;
+
+ if (rid_offset != 0)
+ return rid_offset;
+
+ rid_offset = lp_algorithmic_rid_base();
+
+ if (rid_offset < BASE_RID) {
+ /* Try to prevent admin foot-shooting, we can't put algorithmic
+ rids below 1000, that's the 'well known RIDs' on NT */
+ DEBUG(0, ("'algorithmic rid base' must be equal to or above %ld\n", BASE_RID));
+ rid_offset = BASE_RID;
+ }
+ if (rid_offset & 1) {
+ DEBUG(0, ("algorithmic rid base must be even\n"));
+ rid_offset += 1;
+ }
+ return rid_offset;
+}
+
+/*******************************************************************
+ Converts NT user RID to a UNIX uid.
+ ********************************************************************/
+
+uid_t algorithmic_pdb_user_rid_to_uid(uint32 user_rid)
+{
+ int rid_offset = algorithmic_rid_base();
+ return (uid_t)(((user_rid & (~USER_RID_TYPE)) - rid_offset)/RID_MULTIPLIER);
+}
+
+/*******************************************************************
+ converts UNIX uid to an NT User RID.
+ ********************************************************************/
+
+uint32 algorithmic_pdb_uid_to_user_rid(uid_t uid)
+{
+ int rid_offset = algorithmic_rid_base();
+ return (((((uint32)uid)*RID_MULTIPLIER) + rid_offset) | USER_RID_TYPE);
+}
+
+/*******************************************************************
+ Converts NT group RID to a UNIX gid.
+ ********************************************************************/
+
+gid_t pdb_group_rid_to_gid(uint32 group_rid)
+{
+ int rid_offset = algorithmic_rid_base();
+ return (gid_t)(((group_rid & (~GROUP_RID_TYPE))- rid_offset)/RID_MULTIPLIER);
+}
+
+/*******************************************************************
+ 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.
+ ********************************************************************/
+
+uint32 pdb_gid_to_group_rid(gid_t gid)
+{
+ int rid_offset = algorithmic_rid_base();
+ return (((((uint32)gid)*RID_MULTIPLIER) + rid_offset) | GROUP_RID_TYPE);
+}
+
+/*******************************************************************
+ Decides if a RID is a well known RID.
+ ********************************************************************/
+
+static BOOL pdb_rid_is_well_known(uint32 rid)
+{
+ /* Not using rid_offset here, because this is the actual
+ NT fixed value (1000) */
+
+ return (rid < BASE_RID);
+}
+
+/*******************************************************************
+ Decides if a RID is a user or group RID.
+ ********************************************************************/
+
+BOOL algorithmic_pdb_rid_is_user(uint32 rid)
+{
+ 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;
+}
+
+/*******************************************************************
+ Look up a rid in the SAM we're responsible for (i.e. passdb)
+ ********************************************************************/
+
+BOOL lookup_global_sam_rid(uint32 rid, fstring name,
+ enum SID_NAME_USE *psid_name_use)
+{
+ SAM_ACCOUNT *sam_account = NULL;
+ GROUP_MAP map;
+ BOOL ret;
+ DOM_SID sid;
+
+ *psid_name_use = SID_NAME_UNKNOWN;
+
+ DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n",
+ (unsigned int)rid));
+
+ sid_copy(&sid, get_global_sam_sid());
+ sid_append_rid(&sid, rid);
+
+ /* see if the passdb can help us with the name of the user */
+ if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
+ return False;
+ }
+
+ /* BEING ROOT BLLOCK */
+ become_root();
+ if (pdb_getsampwsid(sam_account, &sid)) {
+ unbecome_root(); /* -----> EXIT BECOME_ROOT() */
+ fstrcpy(name, pdb_get_username(sam_account));
+ *psid_name_use = SID_NAME_USER;
+
+ pdb_free_sam(&sam_account);
+
+ return True;
+ }
+ pdb_free_sam(&sam_account);
+
+ ret = pdb_getgrsid(&map, sid);
+ unbecome_root();
+ /* END BECOME_ROOT BLOCK */
+
+ if ( ret ) {
+ if (map.gid!=(gid_t)-1) {
+ DEBUG(5,("lookup_global_sam_rid: mapped group %s to "
+ "gid %u\n", map.nt_name,
+ (unsigned int)map.gid));
+ } else {
+ DEBUG(5,("lookup_global_sam_rid: mapped group %s to "
+ "no unix gid. Returning name.\n",
+ map.nt_name));
+ }
+
+ fstrcpy(name, map.nt_name);
+ *psid_name_use = map.sid_name_use;
+ return True;
+ }
+
+ if (rid == DOMAIN_USER_RID_ADMIN) {
+ *psid_name_use = SID_NAME_USER;
+ fstrcpy(name, "Administrator");
+ return True;
+ }
+
+ if (algorithmic_pdb_rid_is_user(rid)) {
+ uid_t uid;
+ struct passwd *pw = NULL;
+
+ DEBUG(5, ("assuming RID %u is a user\n", (unsigned)rid));
+
+ uid = algorithmic_pdb_user_rid_to_uid(rid);
+ pw = sys_getpwuid( uid );
+
+ DEBUG(5,("lookup_global_sam_rid: looking up uid %u %s\n",
+ (unsigned int)uid, pw ? "succeeded" : "failed" ));
+
+ if ( !pw )
+ fstr_sprintf(name, "unix_user.%u", (unsigned int)uid);
+ else
+ fstrcpy( name, pw->pw_name );
+
+ DEBUG(5,("lookup_global_sam_rid: found user %s for rid %u\n",
+ name, (unsigned int)rid ));
+
+ *psid_name_use = SID_NAME_USER;
+
+ return ( pw != NULL );
+ } else {
+ gid_t gid;
+ struct group *gr;
+
+ DEBUG(5, ("assuming RID %u is a group\n", (unsigned)rid));
+
+ gid = pdb_group_rid_to_gid(rid);
+ gr = getgrgid(gid);
+
+ DEBUG(5,("lookup_global_sam_rid: looking up gid %u %s\n",
+ (unsigned int)gid, gr ? "succeeded" : "failed" ));
+
+ if( !gr )
+ fstr_sprintf(name, "unix_group.%u", (unsigned int)gid);
+ else
+ fstrcpy( name, gr->gr_name);
+
+ DEBUG(5,("lookup_global_sam_rid: found group %s for rid %u\n",
+ name, (unsigned int)rid ));
+
+ /* assume algorithmic groups are domain global groups */
+
+ *psid_name_use = SID_NAME_DOM_GRP;
+
+ return ( gr != NULL );
+ }
+}
+
+/*******************************************************************
+ Convert a name into a SID. Used in the lookup name rpc.
+ ********************************************************************/
+
+BOOL local_lookup_name(const char *c_user, DOM_SID *psid, enum SID_NAME_USE *psid_name_use)
+{
+ DOM_SID local_sid;
+ DOM_SID sid;
+ fstring user;
+ SAM_ACCOUNT *sam_account = NULL;
+ struct group *grp;
+ GROUP_MAP map;
+
+ *psid_name_use = SID_NAME_UNKNOWN;
+
+ /*
+ * user may be quoted a const string, and map_username and
+ * friends can modify it. Make a modifiable copy. JRA.
+ */
+
+ fstrcpy(user, c_user);
+
+ sid_copy(&local_sid, get_global_sam_sid());
+
+ if (map_name_to_wellknown_sid(&sid, psid_name_use, user)){
+ fstring sid_str;
+ sid_copy( psid, &sid);
+ sid_to_string(sid_str, &sid);
+ DEBUG(10,("lookup_name: name %s = SID %s, type = %u\n", user, sid_str,
+ (unsigned int)*psid_name_use ));
+ return True;
+ }
+
+ (void)map_username(user);
+
+ if (!NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
+ return False;
+ }
+
+ /* BEGIN ROOT BLOCK */
+
+ become_root();
+ if (pdb_getsampwnam(sam_account, user)) {
+ unbecome_root();
+ sid_copy(psid, pdb_get_user_sid(sam_account));
+ *psid_name_use = SID_NAME_USER;
+
+ pdb_free_sam(&sam_account);
+ return True;
+ }
+
+ pdb_free_sam(&sam_account);
+
+ /*
+ * Maybe it was a group ?
+ */
+
+ /* check if it's a mapped group */
+ if (pdb_getgrnam(&map, user)) {
+ /* yes it's a mapped group */
+ sid_copy(&local_sid, &map.sid);
+ *psid_name_use = map.sid_name_use;
+ } else {
+ /* it's not a mapped group */
+ grp = getgrnam(user);
+ if(!grp) {
+ unbecome_root(); /* ---> exit form block */
+ 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 (pdb_getgrgid(&map, grp->gr_gid)){
+ unbecome_root(); /* ---> exit form block */
+ return False;
+ }
+
+ sid_append_rid( &local_sid, pdb_gid_to_group_rid(grp->gr_gid));
+ *psid_name_use = SID_NAME_ALIAS;
+ }
+ unbecome_root();
+ /* END ROOT BLOCK */
+
+ sid_copy( psid, &local_sid);
+
+ return True;
+}
+
+/*************************************************************
+ Change a password entry in the local smbpasswd file.
+ *************************************************************/
+
+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)
+{
+ SAM_ACCOUNT *sam_pass=NULL;
+ uint16 other_acb;
+
+ *err_str = '\0';
+ *msg_str = '\0';
+
+ /* Get the smb passwd entry for this user */
+ pdb_init_sam(&sam_pass);
+
+ become_root();
+ if(!pdb_getsampwnam(sam_pass, user_name)) {
+ unbecome_root();
+ pdb_free_sam(&sam_pass);
+
+ if ((local_flags & LOCAL_ADD_USER) || (local_flags & LOCAL_DELETE_USER)) {
+ /* Might not exist in /etc/passwd. Use rid algorithm here */
+ if (!NT_STATUS_IS_OK(pdb_init_sam_new(&sam_pass, user_name, 0))) {
+ slprintf(err_str, err_str_len-1, "Failed to initialise SAM_ACCOUNT for user %s. Does this user exist in the UNIX password database ?\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;
+ }
+ } else {
+ unbecome_root();
+ /* the entry already existed */
+ local_flags &= ~LOCAL_ADD_USER;
+ }
+
+ /* the 'other' acb bits not being changed here */
+ other_acb = (pdb_get_acct_ctrl(sam_pass) & (!(ACB_WSTRUST|ACB_DOMTRUST|ACB_SVRTRUST|ACB_NORMAL)));
+ if (local_flags & LOCAL_TRUST_ACCOUNT) {
+ if (!pdb_set_acct_ctrl(sam_pass, ACB_WSTRUST | other_acb, PDB_CHANGED) ) {
+ 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 | other_acb, PDB_CHANGED)) {
+ 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 | other_acb, PDB_CHANGED)) {
+ 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;
+ }
+ }
+
+ /*
+ * 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, PDB_CHANGED)) {
+ 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), PDB_CHANGED)) {
+ 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 (local_flags & LOCAL_SET_NO_PASSWORD) {
+ if (!pdb_set_acct_ctrl (sam_pass, pdb_get_acct_ctrl(sam_pass)|ACB_PWNOTREQ, PDB_CHANGED)) {
+ 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), PDB_CHANGED)) {
+ 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), PDB_CHANGED)) {
+ 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(sam_pass)) {
+ 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)) {
+ 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);
+ }
+
+ pdb_free_sam(&sam_pass);
+ return True;
+}
+
+/****************************************************************************
+ Convert a uid to SID - algorithmic.
+****************************************************************************/
+
+DOM_SID *algorithmic_uid_to_sid(DOM_SID *psid, uid_t uid)
+{
+ if ( !lp_enable_rid_algorithm() )
+ return NULL;
+
+ DEBUG(8,("algorithmic_uid_to_sid: falling back to RID algorithm\n"));
+ sid_copy( psid, get_global_sam_sid() );
+ sid_append_rid( psid, algorithmic_pdb_uid_to_user_rid(uid) );
+ DEBUG(10,("algorithmic_uid_to_sid: uid (%d) -> SID %s.\n",
+ (unsigned int)uid, sid_string_static(psid) ));
+
+ return psid;
+}
+
+/****************************************************************************
+ Convert a uid to SID - locally.
+****************************************************************************/
+
+DOM_SID *local_uid_to_sid(DOM_SID *psid, uid_t uid)
+{
+ SAM_ACCOUNT *sampw = NULL;
+ struct passwd *unix_pw;
+ BOOL ret;
+
+ unix_pw = sys_getpwuid( uid );
+
+ if ( !unix_pw ) {
+ DEBUG(4,("local_uid_to_sid: host has no idea of uid %lu\n", (unsigned long)uid));
+ return algorithmic_uid_to_sid( psid, uid);
+ }
+
+ if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
+ DEBUG(0,("local_uid_to_sid: failed to allocate SAM_ACCOUNT object\n"));
+ return NULL;
+ }
+
+ become_root();
+ ret = pdb_getsampwnam( sampw, unix_pw->pw_name );
+ unbecome_root();
+
+ if ( ret )
+ sid_copy( psid, pdb_get_user_sid(sampw) );
+ else {
+ DEBUG(4,("local_uid_to_sid: User %s [uid == %lu] has no samba account\n",
+ unix_pw->pw_name, (unsigned long)uid));
+
+ algorithmic_uid_to_sid( psid, uid);
+ }
+
+ pdb_free_sam(&sampw);
+
+ DEBUG(10,("local_uid_to_sid: uid (%d) -> SID %s (%s).\n",
+ (unsigned int)uid, sid_string_static(psid), unix_pw->pw_name));
+
+ return psid;
+}
+
+/****************************************************************************
+ Convert a SID to uid - locally.
+****************************************************************************/
+
+BOOL local_sid_to_uid(uid_t *puid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
+{
+ SAM_ACCOUNT *sampw = NULL;
+ struct passwd *unix_pw;
+ const char *user_name;
+
+ *name_type = SID_NAME_UNKNOWN;
+
+ /*
+ * We can only convert to a uid if this is our local
+ * Domain SID (ie. we are the controling authority).
+ */
+ if (!sid_check_is_in_our_domain(psid) ) {
+ DEBUG(5,("local_sid_to_uid: this SID (%s) is not from our domain\n", sid_string_static(psid)));
+ return False;
+ }
+
+ /* lookup the user account */
+
+ if ( !NT_STATUS_IS_OK(pdb_init_sam(&sampw)) ) {
+ DEBUG(0,("local_sid_to_uid: Failed to allocate memory for SAM_ACCOUNT object\n"));
+ return False;
+ }
+
+ become_root();
+ if ( !pdb_getsampwsid(sampw, psid) ) {
+ unbecome_root();
+ pdb_free_sam(&sampw);
+ DEBUG(8,("local_sid_to_uid: Could not find SID %s in passdb\n",
+ sid_string_static(psid)));
+ return False;
+ }
+ unbecome_root();
+
+ user_name = pdb_get_username(sampw);
+
+ unix_pw = sys_getpwnam( user_name );
+
+ if ( !unix_pw ) {
+ DEBUG(0,("local_sid_to_uid: %s found in passdb but getpwnam() return NULL!\n",
+ user_name));
+ pdb_free_sam( &sampw );
+ return False;
+ }
+
+ *puid = unix_pw->pw_uid;
+
+ DEBUG(10,("local_sid_to_uid: SID %s -> uid (%u) (%s).\n", sid_string_static(psid),
+ (unsigned int)*puid, user_name ));
+
+ *name_type = SID_NAME_USER;
+ pdb_free_sam( &sampw );
+ return True;
+}
+
+/****************************************************************************
+ Convert a gid to SID - locally.
+****************************************************************************/
+
+DOM_SID *local_gid_to_sid(DOM_SID *psid, gid_t gid)
+{
+ GROUP_MAP group;
+ BOOL ret;
+
+ /* we don't need to disable winbindd since the gid is stored in
+ the GROUP_MAP object */
+
+ /* done as root since ldap backend requires root to open a connection */
+
+ become_root();
+ ret = pdb_getgrgid( &group, gid );
+ unbecome_root();
+
+ if ( !ret ) {
+
+ /* fallback to rid mapping if enabled */
+
+ if ( lp_enable_rid_algorithm() ) {
+ sid_copy(psid, get_global_sam_sid());
+ sid_append_rid(psid, pdb_gid_to_group_rid(gid));
+
+ DEBUG(10,("local_gid_to_sid: Fall back to algorithmic mapping: %u -> %s\n",
+ (unsigned int)gid, sid_string_static(psid)));
+
+ return psid;
+ }
+ else
+ return NULL;
+ }
+
+ sid_copy( psid, &group.sid );
+
+ DEBUG(10,("local_gid_to_sid: gid (%d) -> SID %s.\n",
+ (unsigned int)gid, sid_string_static(psid)));
+
+ return psid;
+}
+
+/****************************************************************************
+ Convert a SID to gid - locally.
+****************************************************************************/
+
+BOOL local_sid_to_gid(gid_t *pgid, const DOM_SID *psid, enum SID_NAME_USE *name_type)
+{
+ uint32 rid;
+ GROUP_MAP group;
+ BOOL ret;
+
+ *name_type = SID_NAME_UNKNOWN;
+
+ /* This call can enumerate group mappings for foreign sids as well.
+ So don't check for a match against our domain SID */
+
+ /* we don't need to disable winbindd since the gid is stored in
+ the GROUP_MAP object */
+
+ become_root();
+ ret = pdb_getgrsid(&group, *psid);
+ unbecome_root();
+
+ if ( !ret ) {
+
+ /* Fallback to algorithmic rid mapping if enabled */
+
+ if ( lp_enable_rid_algorithm() ) {
+
+ if (!sid_check_is_in_our_domain(psid) ) {
+ DEBUG(5,("local_sid_to_gid: RID algorithm only supported for our domain (%s is not)\n", sid_string_static(psid)));
+ return False;
+ }
+
+ if (!sid_peek_rid(psid, &rid)) {
+ DEBUG(10,("local_sid_to_gid: invalid SID!\n"));
+ return False;
+ }
+
+ DEBUG(10,("local_sid_to_gid: Fall back to algorithmic mapping\n"));
+
+ if (algorithmic_pdb_rid_is_user(rid)) {
+ DEBUG(3, ("local_sid_to_gid: SID %s is *NOT* a group\n", sid_string_static(psid)));
+ return False;
+ } else {
+ *pgid = pdb_group_rid_to_gid(rid);
+ DEBUG(10,("local_sid_to_gid: mapping: %s -> %u\n", sid_string_static(psid), (unsigned int)(*pgid)));
+ return True;
+ }
+ }
+
+ return False;
+ }
+
+ *pgid = group.gid;
+ *name_type = group.sid_name_use;
+
+ DEBUG(10,("local_sid_to_gid: SID %s -> gid (%u)\n", sid_string_static(psid),
+ (unsigned int)*pgid));
+
+ return True;
+}
+
+/**********************************************************************
+ Marshall/unmarshall SAM_ACCOUNT structs.
+ *********************************************************************/
+
+#define TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd"
+#define TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd"
+#define TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd"
+
+/**********************************************************************
+ Intialize a SAM_ACCOUNT struct from a BYTE buffer of size len
+ *********************************************************************/
+
+BOOL init_sam_from_buffer(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
+{
+ return(init_sam_from_buffer_v2(sampass, buf, buflen));
+}
+
+/**********************************************************************
+ Intialize a BYTE buffer from a SAM_ACCOUNT struct
+ *********************************************************************/
+
+uint32 init_buffer_from_sam (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
+{
+ return(init_buffer_from_sam_v2(buf, sampass, size_only));
+}
+
+
+BOOL init_sam_from_buffer_v0(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
+{
+
+ /* times are stored as 32bit integer
+ take care on system with 64bit wide time_t
+ --SSS */
+ uint32 logon_time,
+ logoff_time,
+ kickoff_time,
+ pass_last_set_time,
+ pass_can_change_time,
+ pass_must_change_time;
+ char *username = NULL;
+ char *domain = NULL;
+ char *nt_username = NULL;
+ char *dir_drive = NULL;
+ char *unknown_str = NULL;
+ char *munged_dial = NULL;
+ char *fullname = NULL;
+ char *homedir = NULL;
+ char *logon_script = NULL;
+ char *profile_path = NULL;
+ char *acct_desc = NULL;
+ char *workstations = NULL;
+ uint32 username_len, domain_len, nt_username_len,
+ dir_drive_len, unknown_str_len, munged_dial_len,
+ fullname_len, homedir_len, logon_script_len,
+ profile_path_len, acct_desc_len, workstations_len;
+
+ uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
+ uint16 acct_ctrl, logon_divs;
+ uint16 bad_password_count, logon_count;
+ uint8 *hours = NULL;
+ uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
+ uint32 len = 0;
+ uint32 lm_pw_len, nt_pw_len, hourslen;
+ BOOL ret = True;
+
+ if(sampass == NULL || buf == NULL) {
+ DEBUG(0, ("init_sam_from_buffer_v0: NULL parameters found!\n"));
+ return False;
+ }
+
+/* TDB_FORMAT_STRING_V0 "ddddddBBBBBBBBBBBBddBBwdwdBwwd" */
+
+ /* unpack the buffer into variables */
+ len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V0,
+ &logon_time, /* d */
+ &logoff_time, /* d */
+ &kickoff_time, /* d */
+ &pass_last_set_time, /* d */
+ &pass_can_change_time, /* d */
+ &pass_must_change_time, /* d */
+ &username_len, &username, /* B */
+ &domain_len, &domain, /* B */
+ &nt_username_len, &nt_username, /* B */
+ &fullname_len, &fullname, /* B */
+ &homedir_len, &homedir, /* B */
+ &dir_drive_len, &dir_drive, /* B */
+ &logon_script_len, &logon_script, /* B */
+ &profile_path_len, &profile_path, /* B */
+ &acct_desc_len, &acct_desc, /* B */
+ &workstations_len, &workstations, /* B */
+ &unknown_str_len, &unknown_str, /* B */
+ &munged_dial_len, &munged_dial, /* B */
+ &user_rid, /* d */
+ &group_rid, /* d */
+ &lm_pw_len, &lm_pw_ptr, /* B */
+ &nt_pw_len, &nt_pw_ptr, /* B */
+ &acct_ctrl, /* w */
+ &remove_me, /* remove on the next TDB_FORMAT upgarde */ /* d */
+ &logon_divs, /* w */
+ &hours_len, /* d */
+ &hourslen, &hours, /* B */
+ &bad_password_count, /* w */
+ &logon_count, /* w */
+ &unknown_6); /* d */
+
+ if (len == (uint32) -1) {
+ ret = False;
+ goto done;
+ }
+
+ pdb_set_logon_time(sampass, logon_time, PDB_SET);
+ pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
+ pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
+ pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
+ pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
+ pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
+
+ pdb_set_username(sampass, username, PDB_SET);
+ pdb_set_domain(sampass, domain, PDB_SET);
+ pdb_set_nt_username(sampass, nt_username, PDB_SET);
+ pdb_set_fullname(sampass, fullname, PDB_SET);
+
+ if (homedir) {
+ pdb_set_homedir(sampass, homedir, PDB_SET);
+ }
+ else {
+ pdb_set_homedir(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
+ PDB_DEFAULT);
+ }
+
+ if (dir_drive)
+ pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
+ else {
+ pdb_set_dir_drive(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
+ PDB_DEFAULT);
+ }
+
+ if (logon_script)
+ pdb_set_logon_script(sampass, logon_script, PDB_SET);
+ else {
+ pdb_set_logon_script(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
+ PDB_DEFAULT);
+ }
+
+ if (profile_path) {
+ pdb_set_profile_path(sampass, profile_path, PDB_SET);
+ } else {
+ pdb_set_profile_path(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
+ PDB_DEFAULT);
+ }
+
+ pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
+ pdb_set_workstations(sampass, workstations, PDB_SET);
+ pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
+
+ if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
+ if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
+ ret = False;
+ goto done;
+ }
+ }
+
+ if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
+ if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
+ ret = False;
+ goto done;
+ }
+ }
+
+ pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
+ pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
+ pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
+ pdb_set_hours_len(sampass, hours_len, PDB_SET);
+ pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
+ pdb_set_logon_count(sampass, logon_count, PDB_SET);
+ pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
+ pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
+ pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
+ pdb_set_hours(sampass, hours, PDB_SET);
+
+done:
+
+ SAFE_FREE(username);
+ SAFE_FREE(domain);
+ SAFE_FREE(nt_username);
+ SAFE_FREE(fullname);
+ SAFE_FREE(homedir);
+ SAFE_FREE(dir_drive);
+ SAFE_FREE(logon_script);
+ SAFE_FREE(profile_path);
+ SAFE_FREE(acct_desc);
+ SAFE_FREE(workstations);
+ SAFE_FREE(munged_dial);
+ SAFE_FREE(unknown_str);
+ SAFE_FREE(lm_pw_ptr);
+ SAFE_FREE(nt_pw_ptr);
+ SAFE_FREE(hours);
+
+ return ret;
+}
+
+BOOL init_sam_from_buffer_v1(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
+{
+
+ /* times are stored as 32bit integer
+ take care on system with 64bit wide time_t
+ --SSS */
+ uint32 logon_time,
+ logoff_time,
+ kickoff_time,
+ bad_password_time,
+ pass_last_set_time,
+ pass_can_change_time,
+ pass_must_change_time;
+ char *username = NULL;
+ char *domain = NULL;
+ char *nt_username = NULL;
+ char *dir_drive = NULL;
+ char *unknown_str = NULL;
+ char *munged_dial = NULL;
+ char *fullname = NULL;
+ char *homedir = NULL;
+ char *logon_script = NULL;
+ char *profile_path = NULL;
+ char *acct_desc = NULL;
+ char *workstations = NULL;
+ uint32 username_len, domain_len, nt_username_len,
+ dir_drive_len, unknown_str_len, munged_dial_len,
+ fullname_len, homedir_len, logon_script_len,
+ profile_path_len, acct_desc_len, workstations_len;
+
+ uint32 user_rid, group_rid, remove_me, hours_len, unknown_6;
+ uint16 acct_ctrl, logon_divs;
+ uint16 bad_password_count, logon_count;
+ uint8 *hours = NULL;
+ uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL;
+ uint32 len = 0;
+ uint32 lm_pw_len, nt_pw_len, hourslen;
+ BOOL ret = True;
+
+ if(sampass == NULL || buf == NULL) {
+ DEBUG(0, ("init_sam_from_buffer_v1: NULL parameters found!\n"));
+ return False;
+ }
+
+/* TDB_FORMAT_STRING_V1 "dddddddBBBBBBBBBBBBddBBwdwdBwwd" */
+
+ /* unpack the buffer into variables */
+ len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V1,
+ &logon_time, /* d */
+ &logoff_time, /* d */
+ &kickoff_time, /* d */
+ /* Change from V0 is addition of bad_password_time field. */
+ &bad_password_time, /* d */
+ &pass_last_set_time, /* d */
+ &pass_can_change_time, /* d */
+ &pass_must_change_time, /* d */
+ &username_len, &username, /* B */
+ &domain_len, &domain, /* B */
+ &nt_username_len, &nt_username, /* B */
+ &fullname_len, &fullname, /* B */
+ &homedir_len, &homedir, /* B */
+ &dir_drive_len, &dir_drive, /* B */
+ &logon_script_len, &logon_script, /* B */
+ &profile_path_len, &profile_path, /* B */
+ &acct_desc_len, &acct_desc, /* B */
+ &workstations_len, &workstations, /* B */
+ &unknown_str_len, &unknown_str, /* B */
+ &munged_dial_len, &munged_dial, /* B */
+ &user_rid, /* d */
+ &group_rid, /* d */
+ &lm_pw_len, &lm_pw_ptr, /* B */
+ &nt_pw_len, &nt_pw_ptr, /* B */
+ &acct_ctrl, /* w */
+ &remove_me, /* d */
+ &logon_divs, /* w */
+ &hours_len, /* d */
+ &hourslen, &hours, /* B */
+ &bad_password_count, /* w */
+ &logon_count, /* w */
+ &unknown_6); /* d */
+
+ if (len == (uint32) -1) {
+ ret = False;
+ goto done;
+ }
+
+ pdb_set_logon_time(sampass, logon_time, PDB_SET);
+ pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
+ pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
+
+ /* Change from V0 is addition of bad_password_time field. */
+ pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
+ pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
+ pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
+ pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
+
+ pdb_set_username(sampass, username, PDB_SET);
+ pdb_set_domain(sampass, domain, PDB_SET);
+ pdb_set_nt_username(sampass, nt_username, PDB_SET);
+ pdb_set_fullname(sampass, fullname, PDB_SET);
+
+ if (homedir) {
+ pdb_set_homedir(sampass, homedir, PDB_SET);
+ }
+ else {
+ pdb_set_homedir(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
+ PDB_DEFAULT);
+ }
+
+ if (dir_drive)
+ pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
+ else {
+ pdb_set_dir_drive(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_drive()),
+ PDB_DEFAULT);
+ }
+
+ if (logon_script)
+ pdb_set_logon_script(sampass, logon_script, PDB_SET);
+ else {
+ pdb_set_logon_script(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
+ PDB_DEFAULT);
+ }
+
+ if (profile_path) {
+ pdb_set_profile_path(sampass, profile_path, PDB_SET);
+ } else {
+ pdb_set_profile_path(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
+ PDB_DEFAULT);
+ }
+
+ pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
+ pdb_set_workstations(sampass, workstations, PDB_SET);
+ pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
+
+ if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
+ if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
+ ret = False;
+ goto done;
+ }
+ }
+
+ if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
+ if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
+ ret = False;
+ goto done;
+ }
+ }
+
+ pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
+
+ pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
+ pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
+ pdb_set_hours_len(sampass, hours_len, PDB_SET);
+ pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
+ pdb_set_logon_count(sampass, logon_count, PDB_SET);
+ pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
+ pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
+ pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
+ pdb_set_hours(sampass, hours, PDB_SET);
+
+done:
+
+ SAFE_FREE(username);
+ SAFE_FREE(domain);
+ SAFE_FREE(nt_username);
+ SAFE_FREE(fullname);
+ SAFE_FREE(homedir);
+ SAFE_FREE(dir_drive);
+ SAFE_FREE(logon_script);
+ SAFE_FREE(profile_path);
+ SAFE_FREE(acct_desc);
+ SAFE_FREE(workstations);
+ SAFE_FREE(munged_dial);
+ SAFE_FREE(unknown_str);
+ SAFE_FREE(lm_pw_ptr);
+ SAFE_FREE(nt_pw_ptr);
+ SAFE_FREE(hours);
+
+ return ret;
+}
+
+
+BOOL init_sam_from_buffer_v2(SAM_ACCOUNT *sampass, uint8 *buf, uint32 buflen)
+{
+
+ /* times are stored as 32bit integer
+ take care on system with 64bit wide time_t
+ --SSS */
+ uint32 logon_time,
+ logoff_time,
+ kickoff_time,
+ bad_password_time,
+ pass_last_set_time,
+ pass_can_change_time,
+ pass_must_change_time;
+ char *username = NULL;
+ char *domain = NULL;
+ char *nt_username = NULL;
+ char *dir_drive = NULL;
+ char *unknown_str = NULL;
+ char *munged_dial = NULL;
+ char *fullname = NULL;
+ char *homedir = NULL;
+ char *logon_script = NULL;
+ char *profile_path = NULL;
+ char *acct_desc = NULL;
+ char *workstations = NULL;
+ uint32 username_len, domain_len, nt_username_len,
+ dir_drive_len, unknown_str_len, munged_dial_len,
+ fullname_len, homedir_len, logon_script_len,
+ profile_path_len, acct_desc_len, workstations_len;
+
+ uint32 user_rid, group_rid, hours_len, unknown_6;
+ uint16 acct_ctrl, logon_divs;
+ uint16 bad_password_count, logon_count;
+ uint8 *hours = NULL;
+ uint8 *lm_pw_ptr = NULL, *nt_pw_ptr = NULL, *nt_pw_hist_ptr = NULL;
+ uint32 len = 0;
+ uint32 lm_pw_len, nt_pw_len, nt_pw_hist_len, hourslen;
+ uint32 pwHistLen = 0;
+ BOOL ret = True;
+ fstring tmpstring;
+ BOOL expand_explicit = lp_passdb_expand_explicit();
+
+ if(sampass == NULL || buf == NULL) {
+ DEBUG(0, ("init_sam_from_buffer_v2: NULL parameters found!\n"));
+ return False;
+ }
+
+/* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
+
+ /* unpack the buffer into variables */
+ len = tdb_unpack ((char *)buf, buflen, TDB_FORMAT_STRING_V2,
+ &logon_time, /* d */
+ &logoff_time, /* d */
+ &kickoff_time, /* d */
+ &bad_password_time, /* d */
+ &pass_last_set_time, /* d */
+ &pass_can_change_time, /* d */
+ &pass_must_change_time, /* d */
+ &username_len, &username, /* B */
+ &domain_len, &domain, /* B */
+ &nt_username_len, &nt_username, /* B */
+ &fullname_len, &fullname, /* B */
+ &homedir_len, &homedir, /* B */
+ &dir_drive_len, &dir_drive, /* B */
+ &logon_script_len, &logon_script, /* B */
+ &profile_path_len, &profile_path, /* B */
+ &acct_desc_len, &acct_desc, /* B */
+ &workstations_len, &workstations, /* B */
+ &unknown_str_len, &unknown_str, /* B */
+ &munged_dial_len, &munged_dial, /* B */
+ &user_rid, /* d */
+ &group_rid, /* d */
+ &lm_pw_len, &lm_pw_ptr, /* B */
+ &nt_pw_len, &nt_pw_ptr, /* B */
+ /* Change from V1 is addition of password history field. */
+ &nt_pw_hist_len, &nt_pw_hist_ptr, /* B */
+ &acct_ctrl, /* w */
+ /* Also "remove_me" field was removed. */
+ &logon_divs, /* w */
+ &hours_len, /* d */
+ &hourslen, &hours, /* B */
+ &bad_password_count, /* w */
+ &logon_count, /* w */
+ &unknown_6); /* d */
+
+ if (len == (uint32) -1) {
+ ret = False;
+ goto done;
+ }
+
+ pdb_set_logon_time(sampass, logon_time, PDB_SET);
+ pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
+ pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
+ pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
+ pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
+ pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
+ pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
+
+ pdb_set_username(sampass, username, PDB_SET);
+ pdb_set_domain(sampass, domain, PDB_SET);
+ pdb_set_nt_username(sampass, nt_username, PDB_SET);
+ pdb_set_fullname(sampass, fullname, PDB_SET);
+
+ if (homedir) {
+ fstrcpy( tmpstring, homedir );
+ if (expand_explicit) {
+ standard_sub_basic( username, tmpstring,
+ sizeof(tmpstring) );
+ }
+ pdb_set_homedir(sampass, tmpstring, PDB_SET);
+ }
+ else {
+ pdb_set_homedir(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_home()),
+ PDB_DEFAULT);
+ }
+
+ if (dir_drive)
+ pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
+ else
+ pdb_set_dir_drive(sampass, lp_logon_drive(), PDB_DEFAULT );
+
+ if (logon_script) {
+ fstrcpy( tmpstring, logon_script );
+ if (expand_explicit) {
+ standard_sub_basic( username, tmpstring,
+ sizeof(tmpstring) );
+ }
+ pdb_set_logon_script(sampass, tmpstring, PDB_SET);
+ }
+ else {
+ pdb_set_logon_script(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_script()),
+ PDB_DEFAULT);
+ }
+
+ if (profile_path) {
+ fstrcpy( tmpstring, profile_path );
+ if (expand_explicit) {
+ standard_sub_basic( username, tmpstring,
+ sizeof(tmpstring) );
+ }
+ pdb_set_profile_path(sampass, tmpstring, PDB_SET);
+ }
+ else {
+ pdb_set_profile_path(sampass,
+ talloc_sub_basic(sampass->mem_ctx, username, lp_logon_path()),
+ PDB_DEFAULT);
+ }
+
+ pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
+ pdb_set_workstations(sampass, workstations, PDB_SET);
+ pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
+
+ if (lm_pw_ptr && lm_pw_len == LM_HASH_LEN) {
+ if (!pdb_set_lanman_passwd(sampass, lm_pw_ptr, PDB_SET)) {
+ ret = False;
+ goto done;
+ }
+ }
+
+ if (nt_pw_ptr && nt_pw_len == NT_HASH_LEN) {
+ if (!pdb_set_nt_passwd(sampass, nt_pw_ptr, PDB_SET)) {
+ ret = False;
+ goto done;
+ }
+ }
+
+ /* Change from V1 is addition of password history field. */
+ pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
+ if (pwHistLen) {
+ uint8 *pw_hist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN);
+ if (!pw_hist) {
+ ret = False;
+ goto done;
+ }
+ memset(pw_hist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
+ if (nt_pw_hist_ptr && nt_pw_hist_len) {
+ int i;
+ SMB_ASSERT((nt_pw_hist_len % PW_HISTORY_ENTRY_LEN) == 0);
+ nt_pw_hist_len /= PW_HISTORY_ENTRY_LEN;
+ for (i = 0; (i < pwHistLen) && (i < nt_pw_hist_len); i++) {
+ memcpy(&pw_hist[i*PW_HISTORY_ENTRY_LEN],
+ &nt_pw_hist_ptr[i*PW_HISTORY_ENTRY_LEN],
+ PW_HISTORY_ENTRY_LEN);
+ }
+ }
+ if (!pdb_set_pw_history(sampass, pw_hist, pwHistLen, PDB_SET)) {
+ SAFE_FREE(pw_hist);
+ ret = False;
+ goto done;
+ }
+ SAFE_FREE(pw_hist);
+ } else {
+ pdb_set_pw_history(sampass, NULL, 0, PDB_SET);
+ }
+
+ pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
+ pdb_set_group_sid_from_rid(sampass, group_rid, PDB_SET);
+ pdb_set_hours_len(sampass, hours_len, PDB_SET);
+ pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
+ pdb_set_logon_count(sampass, logon_count, PDB_SET);
+ pdb_set_unknown_6(sampass, unknown_6, PDB_SET);
+ pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
+ pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
+ pdb_set_hours(sampass, hours, PDB_SET);
+
+done:
+
+ SAFE_FREE(username);
+ SAFE_FREE(domain);
+ SAFE_FREE(nt_username);
+ SAFE_FREE(fullname);
+ SAFE_FREE(homedir);
+ SAFE_FREE(dir_drive);
+ SAFE_FREE(logon_script);
+ SAFE_FREE(profile_path);
+ SAFE_FREE(acct_desc);
+ SAFE_FREE(workstations);
+ SAFE_FREE(munged_dial);
+ SAFE_FREE(unknown_str);
+ SAFE_FREE(lm_pw_ptr);
+ SAFE_FREE(nt_pw_ptr);
+ SAFE_FREE(nt_pw_hist_ptr);
+ SAFE_FREE(hours);
+
+ return ret;
+}
+
+uint32 init_buffer_from_sam_v2 (uint8 **buf, const SAM_ACCOUNT *sampass, BOOL size_only)
+{
+ size_t len, buflen;
+
+ /* times are stored as 32bit integer
+ take care on system with 64bit wide time_t
+ --SSS */
+ uint32 logon_time,
+ logoff_time,
+ kickoff_time,
+ bad_password_time,
+ pass_last_set_time,
+ pass_can_change_time,
+ pass_must_change_time;
+
+ uint32 user_rid, group_rid;
+
+ const char *username;
+ const char *domain;
+ const char *nt_username;
+ const char *dir_drive;
+ const char *unknown_str;
+ const char *munged_dial;
+ const char *fullname;
+ const char *homedir;
+ const char *logon_script;
+ const char *profile_path;
+ const char *acct_desc;
+ const char *workstations;
+ uint32 username_len, domain_len, nt_username_len,
+ dir_drive_len, unknown_str_len, munged_dial_len,
+ fullname_len, homedir_len, logon_script_len,
+ profile_path_len, acct_desc_len, workstations_len;
+
+ const uint8 *lm_pw;
+ const uint8 *nt_pw;
+ const uint8 *nt_pw_hist;
+ uint32 lm_pw_len = 16;
+ uint32 nt_pw_len = 16;
+ uint32 nt_pw_hist_len;
+ uint32 pwHistLen = 0;
+
+ /* do we have a valid SAM_ACCOUNT pointer? */
+ if (sampass == NULL) {
+ DEBUG(0, ("init_buffer_from_sam: SAM_ACCOUNT is NULL!\n"));
+ return -1;
+ }
+
+ *buf = NULL;
+ buflen = 0;
+
+ logon_time = (uint32)pdb_get_logon_time(sampass);
+ logoff_time = (uint32)pdb_get_logoff_time(sampass);
+ kickoff_time = (uint32)pdb_get_kickoff_time(sampass);
+ bad_password_time = (uint32)pdb_get_bad_password_time(sampass);
+ pass_can_change_time = (uint32)pdb_get_pass_can_change_time(sampass);
+ pass_must_change_time = (uint32)pdb_get_pass_must_change_time(sampass);
+ pass_last_set_time = (uint32)pdb_get_pass_last_set_time(sampass);
+
+ user_rid = pdb_get_user_rid(sampass);
+ group_rid = pdb_get_group_rid(sampass);
+
+ username = pdb_get_username(sampass);
+ if (username) {
+ username_len = strlen(username) +1;
+ } else {
+ username_len = 0;
+ }
+
+ domain = pdb_get_domain(sampass);
+ if (domain) {
+ domain_len = strlen(domain) +1;
+ } else {
+ domain_len = 0;
+ }
+
+ nt_username = pdb_get_nt_username(sampass);
+ if (nt_username) {
+ nt_username_len = strlen(nt_username) +1;
+ } else {
+ nt_username_len = 0;
+ }
+
+ fullname = pdb_get_fullname(sampass);
+ if (fullname) {
+ fullname_len = strlen(fullname) +1;
+ } else {
+ fullname_len = 0;
+ }
+
+ /*
+ * Only updates fields which have been set (not defaults from smb.conf)
+ */
+
+ if (!IS_SAM_DEFAULT(sampass, PDB_DRIVE)) {
+ dir_drive = pdb_get_dir_drive(sampass);
+ } else {
+ dir_drive = NULL;
+ }
+ if (dir_drive) {
+ dir_drive_len = strlen(dir_drive) +1;
+ } else {
+ dir_drive_len = 0;
+ }
+
+ if (!IS_SAM_DEFAULT(sampass, PDB_SMBHOME)) {
+ homedir = pdb_get_homedir(sampass);
+ } else {
+ homedir = NULL;
+ }
+ if (homedir) {
+ homedir_len = strlen(homedir) +1;
+ } else {
+ homedir_len = 0;
+ }
+
+ if (!IS_SAM_DEFAULT(sampass, PDB_LOGONSCRIPT)) {
+ logon_script = pdb_get_logon_script(sampass);
+ } else {
+ logon_script = NULL;
+ }
+ if (logon_script) {
+ logon_script_len = strlen(logon_script) +1;
+ } else {
+ logon_script_len = 0;
+ }
+
+ if (!IS_SAM_DEFAULT(sampass, PDB_PROFILE)) {
+ profile_path = pdb_get_profile_path(sampass);
+ } else {
+ profile_path = NULL;
+ }
+ if (profile_path) {
+ profile_path_len = strlen(profile_path) +1;
+ } else {
+ profile_path_len = 0;
+ }
+
+ lm_pw = pdb_get_lanman_passwd(sampass);
+ if (!lm_pw) {
+ lm_pw_len = 0;
+ }
+
+ nt_pw = pdb_get_nt_passwd(sampass);
+ if (!nt_pw) {
+ nt_pw_len = 0;
+ }
+
+ pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
+ nt_pw_hist = pdb_get_pw_history(sampass, &nt_pw_hist_len);
+ if (pwHistLen && nt_pw_hist && nt_pw_hist_len) {
+ nt_pw_hist_len *= PW_HISTORY_ENTRY_LEN;
+ } else {
+ nt_pw_hist_len = 0;
+ }
+
+ acct_desc = pdb_get_acct_desc(sampass);
+ if (acct_desc) {
+ acct_desc_len = strlen(acct_desc) +1;
+ } else {
+ acct_desc_len = 0;
+ }
+
+ workstations = pdb_get_workstations(sampass);
+ if (workstations) {
+ workstations_len = strlen(workstations) +1;
+ } else {
+ workstations_len = 0;
+ }
+
+ unknown_str = NULL;
+ unknown_str_len = 0;
+
+ munged_dial = pdb_get_munged_dial(sampass);
+ if (munged_dial) {
+ munged_dial_len = strlen(munged_dial) +1;
+ } else {
+ munged_dial_len = 0;
+ }
+
+/* TDB_FORMAT_STRING_V2 "dddddddBBBBBBBBBBBBddBBBwwdBwwd" */
+
+ /* one time to get the size needed */
+ len = tdb_pack(NULL, 0, TDB_FORMAT_STRING_V2,
+ logon_time, /* d */
+ logoff_time, /* d */
+ kickoff_time, /* d */
+ bad_password_time, /* d */
+ pass_last_set_time, /* d */
+ pass_can_change_time, /* d */
+ pass_must_change_time, /* d */
+ username_len, username, /* B */
+ domain_len, domain, /* B */
+ nt_username_len, nt_username, /* B */
+ fullname_len, fullname, /* B */
+ homedir_len, homedir, /* B */
+ dir_drive_len, dir_drive, /* B */
+ logon_script_len, logon_script, /* B */
+ profile_path_len, profile_path, /* B */
+ acct_desc_len, acct_desc, /* B */
+ workstations_len, workstations, /* B */
+ unknown_str_len, unknown_str, /* B */
+ munged_dial_len, munged_dial, /* B */
+ user_rid, /* d */
+ group_rid, /* d */
+ lm_pw_len, lm_pw, /* B */
+ nt_pw_len, nt_pw, /* B */
+ nt_pw_hist_len, nt_pw_hist, /* B */
+ pdb_get_acct_ctrl(sampass), /* w */
+ pdb_get_logon_divs(sampass), /* w */
+ pdb_get_hours_len(sampass), /* d */
+ MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
+ pdb_get_bad_password_count(sampass), /* w */
+ pdb_get_logon_count(sampass), /* w */
+ pdb_get_unknown_6(sampass)); /* d */
+
+ if (size_only) {
+ return buflen;
+ }
+
+ /* malloc the space needed */
+ if ( (*buf=(uint8*)SMB_MALLOC(len)) == NULL) {
+ DEBUG(0,("init_buffer_from_sam_v2: Unable to malloc() memory for buffer!\n"));
+ return (-1);
+ }
+
+ /* now for the real call to tdb_pack() */
+ buflen = tdb_pack((char *)*buf, len, TDB_FORMAT_STRING_V2,
+ logon_time, /* d */
+ logoff_time, /* d */
+ kickoff_time, /* d */
+ bad_password_time, /* d */
+ pass_last_set_time, /* d */
+ pass_can_change_time, /* d */
+ pass_must_change_time, /* d */
+ username_len, username, /* B */
+ domain_len, domain, /* B */
+ nt_username_len, nt_username, /* B */
+ fullname_len, fullname, /* B */
+ homedir_len, homedir, /* B */
+ dir_drive_len, dir_drive, /* B */
+ logon_script_len, logon_script, /* B */
+ profile_path_len, profile_path, /* B */
+ acct_desc_len, acct_desc, /* B */
+ workstations_len, workstations, /* B */
+ unknown_str_len, unknown_str, /* B */
+ munged_dial_len, munged_dial, /* B */
+ user_rid, /* d */
+ group_rid, /* d */
+ lm_pw_len, lm_pw, /* B */
+ nt_pw_len, nt_pw, /* B */
+ nt_pw_hist_len, nt_pw_hist, /* B */
+ pdb_get_acct_ctrl(sampass), /* w */
+ pdb_get_logon_divs(sampass), /* w */
+ pdb_get_hours_len(sampass), /* d */
+ MAX_HOURS_LEN, pdb_get_hours(sampass), /* B */
+ pdb_get_bad_password_count(sampass), /* w */
+ pdb_get_logon_count(sampass), /* w */
+ pdb_get_unknown_6(sampass)); /* d */
+
+ /* check to make sure we got it correct */
+ if (buflen != len) {
+ DEBUG(0, ("init_buffer_from_sam_v2: somthing odd is going on here: bufflen (%lu) != len (%lu) in tdb_pack operations!\n",
+ (unsigned long)buflen, (unsigned long)len));
+ /* error */
+ SAFE_FREE (*buf);
+ return (-1);
+ }
+
+ return (buflen);
+}
+
+BOOL pdb_copy_sam_account(const SAM_ACCOUNT *src, SAM_ACCOUNT **dst)
+{
+ BOOL result;
+ uint8 *buf;
+ int len;
+
+ if ((*dst == NULL) && (!NT_STATUS_IS_OK(pdb_init_sam(dst))))
+ return False;
+
+ len = init_buffer_from_sam_v2(&buf, src, False);
+
+ if (len == -1)
+ return False;
+
+ result = init_sam_from_buffer_v2(*dst, buf, len);
+ (*dst)->methods = src->methods;
+
+ free(buf);
+
+ return result;
+}
+
+/**********************************************************************
+**********************************************************************/
+
+static BOOL get_free_ugid_range(uint32 *low, uint32 *high)
+{
+ uid_t u_low, u_high;
+ gid_t g_low, g_high;
+
+ if (!lp_idmap_uid(&u_low, &u_high) || !lp_idmap_gid(&g_low, &g_high)) {
+ return False;
+ }
+
+ *low = (u_low < g_low) ? u_low : g_low;
+ *high = (u_high < g_high) ? u_high : g_high;
+
+ return True;
+}
+
+/******************************************************************
+ Get the the non-algorithmic RID range if idmap range are defined
+******************************************************************/
+
+BOOL get_free_rid_range(uint32 *low, uint32 *high)
+{
+ uint32 id_low, id_high;
+
+ if (!lp_enable_rid_algorithm()) {
+ *low = BASE_RID;
+ *high = (uint32)-1;
+ }
+
+ if (!get_free_ugid_range(&id_low, &id_high)) {
+ return False;
+ }
+
+ *low = algorithmic_pdb_uid_to_user_rid(id_low);
+ if (algorithmic_pdb_user_rid_to_uid((uint32)-1) < id_high) {
+ *high = (uint32)-1;
+ } else {
+ *high = algorithmic_pdb_uid_to_user_rid(id_high);
+ }
+
+ return True;
+}
+
+/*********************************************************************
+ Update the bad password count checking the AP_RESET_COUNT_TIME
+*********************************************************************/
+
+BOOL pdb_update_bad_password_count(SAM_ACCOUNT *sampass, BOOL *updated)
+{
+ time_t LastBadPassword;
+ uint16 BadPasswordCount;
+ uint32 resettime;
+
+ if (!sampass) return False;
+
+ BadPasswordCount = pdb_get_bad_password_count(sampass);
+ if (!BadPasswordCount) {
+ DEBUG(9, ("No bad password attempts.\n"));
+ return True;
+ }
+
+ if (!pdb_get_account_policy(AP_RESET_COUNT_TIME, &resettime)) {
+ DEBUG(0, ("pdb_update_bad_password_count: pdb_get_account_policy failed.\n"));
+ return False;
+ }
+
+ /* First, check if there is a reset time to compare */
+ if ((resettime == (uint32) -1) || (resettime == 0)) {
+ DEBUG(9, ("No reset time, can't reset bad pw count\n"));
+ return True;
+ }
+
+ LastBadPassword = pdb_get_bad_password_time(sampass);
+ DEBUG(7, ("LastBadPassword=%d, resettime=%d, current time=%d.\n",
+ (uint32) LastBadPassword, resettime, (uint32)time(NULL)));
+ if (time(NULL) > (LastBadPassword + (time_t)resettime*60)){
+ pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
+ pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
+ if (updated) {
+ *updated = True;
+ }
+ }
+
+ return True;
+}
+
+/*********************************************************************
+ Update the ACB_AUTOLOCK flag checking the AP_LOCK_ACCOUNT_DURATION
+*********************************************************************/
+
+BOOL pdb_update_autolock_flag(SAM_ACCOUNT *sampass, BOOL *updated)
+{
+ uint32 duration;
+ time_t LastBadPassword;
+
+ if (!sampass) return False;
+
+ if (!(pdb_get_acct_ctrl(sampass) & ACB_AUTOLOCK)) {
+ DEBUG(9, ("pdb_update_autolock_flag: Account %s not autolocked, no check needed\n",
+ pdb_get_username(sampass)));
+ return True;
+ }
+
+ if (!pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &duration)) {
+ DEBUG(0, ("pdb_update_autolock_flag: pdb_get_account_policy failed.\n"));
+ return False;
+ }
+
+ /* First, check if there is a duration to compare */
+ if ((duration == (uint32) -1) || (duration == 0)) {
+ DEBUG(9, ("pdb_update_autolock_flag: No reset duration, can't reset autolock\n"));
+ return True;
+ }
+
+ LastBadPassword = pdb_get_bad_password_time(sampass);
+ DEBUG(7, ("pdb_update_autolock_flag: Account %s, LastBadPassword=%d, duration=%d, current time =%d.\n",
+ pdb_get_username(sampass), (uint32)LastBadPassword, duration*60, (uint32)time(NULL)));
+
+ if (LastBadPassword == (time_t)0) {
+ DEBUG(1,("pdb_update_autolock_flag: Account %s administratively locked out with no \
+bad password time. Leaving locked out.\n",
+ pdb_get_username(sampass) ));
+ return True;
+ }
+
+ if ((time(NULL) > (LastBadPassword + (time_t) duration * 60))) {
+ pdb_set_acct_ctrl(sampass,
+ pdb_get_acct_ctrl(sampass) & ~ACB_AUTOLOCK,
+ PDB_CHANGED);
+ pdb_set_bad_password_count(sampass, 0, PDB_CHANGED);
+ pdb_set_bad_password_time(sampass, 0, PDB_CHANGED);
+ if (updated) {
+ *updated = True;
+ }
+ }
+
+ return True;
+}
+
+/*********************************************************************
+ Increment the bad_password_count
+*********************************************************************/
+
+BOOL pdb_increment_bad_password_count(SAM_ACCOUNT *sampass)
+{
+ uint32 account_policy_lockout;
+ BOOL autolock_updated = False, badpw_updated = False;
+ BOOL ret;
+
+ if (!sampass)
+ return False;
+
+ /* Retrieve the account lockout policy */
+ become_root();
+ ret = pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_lockout);
+ unbecome_root();
+ if ( !ret ) {
+ DEBUG(0, ("pdb_increment_bad_password_count: pdb_get_account_policy failed.\n"));
+ return False;
+ }
+
+ /* If there is no policy, we don't need to continue checking */
+ if (!account_policy_lockout) {
+ DEBUG(9, ("No lockout policy, don't track bad passwords\n"));
+ return True;
+ }
+
+ /* Check if the autolock needs to be cleared */
+ if (!pdb_update_autolock_flag(sampass, &autolock_updated))
+ return False;
+
+ /* Check if the badpw count needs to be reset */
+ if (!pdb_update_bad_password_count(sampass, &badpw_updated))
+ return False;
+
+ /*
+ Ok, now we can assume that any resetting that needs to be
+ done has been done, and just get on with incrementing
+ and autolocking if necessary
+ */
+
+ pdb_set_bad_password_count(sampass,
+ pdb_get_bad_password_count(sampass)+1,
+ PDB_CHANGED);
+ pdb_set_bad_password_time(sampass, time(NULL), PDB_CHANGED);
+
+
+ if (pdb_get_bad_password_count(sampass) < account_policy_lockout)
+ return True;
+
+ if (!pdb_set_acct_ctrl(sampass,
+ pdb_get_acct_ctrl(sampass) | ACB_AUTOLOCK,
+ PDB_CHANGED)) {
+ DEBUG(1, ("pdb_increment_bad_password_count:failed to set 'autolock' flag. \n"));
+ return False;
+ }
+
+ return True;
+}
projects / samba / blobdiff