/* * Unix SMB/CIFS implementation. * RPC Pipe client / server routines * Copyright (C) Andrew Tridgell 1992-1997, * Copyright (C) Luke Kenneth Casson Leighton 1996-1997, * Copyright (C) Paul Ashton 1997, * Copyright (C) Marc Jacobsen 1999, * Copyright (C) Jeremy Allison 2001-2005, * Copyright (C) Jean François Micouleau 1998-2001, * Copyright (C) Jim McDonough 2002, * Copyright (C) Gerald (Jerry) Carter 2003-2004, * Copyright (C) Simo Sorce 2003. * Copyright (C) Volker Lendecke 2005. * * 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. */ /* * This is the implementation of the SAMR code. */ #include "includes.h" #undef DBGC_CLASS #define DBGC_CLASS DBGC_RPC_SRV #define SAMR_USR_RIGHTS_WRITE_PW \ ( READ_CONTROL_ACCESS | \ SA_RIGHT_USER_CHANGE_PASSWORD | \ SA_RIGHT_USER_SET_LOC_COM ) #define SAMR_USR_RIGHTS_CANT_WRITE_PW \ ( READ_CONTROL_ACCESS | SA_RIGHT_USER_SET_LOC_COM ) #define DISP_INFO_CACHE_TIMEOUT 10 typedef struct disp_info { DOM_SID sid; /* identify which domain this is. */ BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */ struct pdb_search *users; /* querydispinfo 1 and 4 */ struct pdb_search *machines; /* querydispinfo 2 */ struct pdb_search *groups; /* querydispinfo 3 and 5, enumgroups */ struct pdb_search *aliases; /* enumaliases */ uint16 enum_acb_mask; struct pdb_search *enum_users; /* enumusers with a mask */ struct timed_event *cache_timeout_event; /* cache idle timeout * handler. */ } DISP_INFO; /* We keep a static list of these by SID as modern clients close down all resources between each request in a complete enumeration. */ struct samr_info { /* for use by the \PIPE\samr policy */ DOM_SID sid; BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */ uint32 status; /* some sort of flag. best to record it. comes from opnum 0x39 */ uint32 acc_granted; DISP_INFO *disp_info; TALLOC_CTX *mem_ctx; }; static struct generic_mapping sam_generic_mapping = { GENERIC_RIGHTS_SAM_READ, GENERIC_RIGHTS_SAM_WRITE, GENERIC_RIGHTS_SAM_EXECUTE, GENERIC_RIGHTS_SAM_ALL_ACCESS}; static struct generic_mapping dom_generic_mapping = { GENERIC_RIGHTS_DOMAIN_READ, GENERIC_RIGHTS_DOMAIN_WRITE, GENERIC_RIGHTS_DOMAIN_EXECUTE, GENERIC_RIGHTS_DOMAIN_ALL_ACCESS}; static struct generic_mapping usr_generic_mapping = { GENERIC_RIGHTS_USER_READ, GENERIC_RIGHTS_USER_WRITE, GENERIC_RIGHTS_USER_EXECUTE, GENERIC_RIGHTS_USER_ALL_ACCESS}; static struct generic_mapping usr_nopwchange_generic_mapping = { GENERIC_RIGHTS_USER_READ, GENERIC_RIGHTS_USER_WRITE, GENERIC_RIGHTS_USER_EXECUTE & ~SA_RIGHT_USER_CHANGE_PASSWORD, GENERIC_RIGHTS_USER_ALL_ACCESS}; static struct generic_mapping grp_generic_mapping = { GENERIC_RIGHTS_GROUP_READ, GENERIC_RIGHTS_GROUP_WRITE, GENERIC_RIGHTS_GROUP_EXECUTE, GENERIC_RIGHTS_GROUP_ALL_ACCESS}; static struct generic_mapping ali_generic_mapping = { GENERIC_RIGHTS_ALIAS_READ, GENERIC_RIGHTS_ALIAS_WRITE, GENERIC_RIGHTS_ALIAS_EXECUTE, GENERIC_RIGHTS_ALIAS_ALL_ACCESS}; /******************************************************************* *******************************************************************/ static NTSTATUS make_samr_object_sd( TALLOC_CTX *ctx, SEC_DESC **psd, size_t *sd_size, struct generic_mapping *map, DOM_SID *sid, uint32 sid_access ) { DOM_SID domadmin_sid; SEC_ACE ace[5]; /* at most 5 entries */ SEC_ACCESS mask; size_t i = 0; SEC_ACL *psa = NULL; /* basic access for Everyone */ init_sec_access(&mask, map->generic_execute | map->generic_read ); init_sec_ace(&ace[i++], &global_sid_World, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0); /* add Full Access 'BUILTIN\Administrators' and 'BUILTIN\Account Operators */ init_sec_access(&mask, map->generic_all); init_sec_ace(&ace[i++], &global_sid_Builtin_Administrators, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0); init_sec_ace(&ace[i++], &global_sid_Builtin_Account_Operators, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0); /* Add Full Access for Domain Admins if we are a DC */ if ( IS_DC ) { sid_copy( &domadmin_sid, get_global_sam_sid() ); sid_append_rid( &domadmin_sid, DOMAIN_GROUP_RID_ADMINS ); init_sec_ace(&ace[i++], &domadmin_sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0); } /* if we have a sid, give it some special access */ if ( sid ) { init_sec_access( &mask, sid_access ); init_sec_ace(&ace[i++], sid, SEC_ACE_TYPE_ACCESS_ALLOWED, mask, 0); } /* create the security descriptor */ if ((psa = make_sec_acl(ctx, NT4_ACL_REVISION, i, ace)) == NULL) return NT_STATUS_NO_MEMORY; if ((*psd = make_sec_desc(ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE, NULL, NULL, NULL, psa, sd_size)) == NULL) return NT_STATUS_NO_MEMORY; return NT_STATUS_OK; } /******************************************************************* Checks if access to an object should be granted, and returns that level of access for further checks. ********************************************************************/ static NTSTATUS access_check_samr_object( SEC_DESC *psd, NT_USER_TOKEN *token, SE_PRIV *rights, uint32 rights_mask, uint32 des_access, uint32 *acc_granted, const char *debug ) { NTSTATUS status = NT_STATUS_ACCESS_DENIED; uint32 saved_mask = 0; /* check privileges; certain SAM access bits should be overridden by privileges (mostly having to do with creating/modifying/deleting users and groups) */ if ( rights && user_has_any_privilege( token, rights ) ) { saved_mask = (des_access & rights_mask); des_access &= ~saved_mask; DEBUG(4,("access_check_samr_object: user rights access mask [0x%x]\n", rights_mask)); } /* check the security descriptor first */ if ( se_access_check(psd, token, des_access, acc_granted, &status) ) goto done; /* give root a free pass */ if ( geteuid() == sec_initial_uid() ) { DEBUG(4,("%s: ACCESS should be DENIED (requested: %#010x)\n", debug, des_access)); DEBUGADD(4,("but overritten by euid == sec_initial_uid()\n")); *acc_granted = des_access; status = NT_STATUS_OK; goto done; } done: /* add in any bits saved during the privilege check (only matters is status is ok) */ *acc_granted |= rights_mask; DEBUG(4,("%s: access %s (requested: 0x%08x, granted: 0x%08x)\n", debug, NT_STATUS_IS_OK(status) ? "GRANTED" : "DENIED", des_access, *acc_granted)); return status; } /******************************************************************* Checks if access to a function can be granted ********************************************************************/ static NTSTATUS access_check_samr_function(uint32 acc_granted, uint32 acc_required, const char *debug) { DEBUG(5,("%s: access check ((granted: %#010x; required: %#010x)\n", debug, acc_granted, acc_required)); /* check the security descriptor first */ if ( (acc_granted&acc_required) == acc_required ) return NT_STATUS_OK; /* give root a free pass */ if (geteuid() == sec_initial_uid()) { DEBUG(4,("%s: ACCESS should be DENIED (granted: %#010x; required: %#010x)\n", debug, acc_granted, acc_required)); DEBUGADD(4,("but overwritten by euid == 0\n")); return NT_STATUS_OK; } DEBUG(2,("%s: ACCESS DENIED (granted: %#010x; required: %#010x)\n", debug, acc_granted, acc_required)); return NT_STATUS_ACCESS_DENIED; } /******************************************************************* Fetch or create a dispinfo struct. ********************************************************************/ static DISP_INFO *get_samr_dispinfo_by_sid(DOM_SID *psid) { /* * We do a static cache for DISP_INFO's here. Explanation can be found * in Jeremy's checkin message to r11793: * * Fix the SAMR cache so it works across completely insane * client behaviour (ie.: * open pipe/open SAMR handle/enumerate 0 - 1024 * close SAMR handle, close pipe. * open pipe/open SAMR handle/enumerate 1024 - 2048... * close SAMR handle, close pipe. * And on ad-nausium. Amazing.... probably object-oriented * client side programming in action yet again. * This change should *massively* improve performance when * enumerating users from an LDAP database. * Jeremy. * * "Our" and the builtin domain are the only ones where we ever * enumerate stuff, so just cache 2 entries. */ static struct disp_info builtin_dispinfo; static struct disp_info domain_dispinfo; /* There are two cases to consider here: 1) The SID is a domain SID and we look for an equality match, or 2) This is an account SID and so we return the DISP_INFO* for our domain */ if (psid == NULL) { return NULL; } if (sid_check_is_builtin(psid) || sid_check_is_in_builtin(psid)) { /* * Necessary only once, but it does not really hurt. */ sid_copy(&builtin_dispinfo.sid, &global_sid_Builtin); return &builtin_dispinfo; } if (sid_check_is_domain(psid) || sid_check_is_in_our_domain(psid)) { /* * Necessary only once, but it does not really hurt. */ sid_copy(&domain_dispinfo.sid, get_global_sam_sid()); return &domain_dispinfo; } return NULL; } /******************************************************************* Create a samr_info struct. ********************************************************************/ static struct samr_info *get_samr_info_by_sid(DOM_SID *psid) { struct samr_info *info; fstring sid_str; TALLOC_CTX *mem_ctx; if (psid) { sid_to_string(sid_str, psid); } else { fstrcpy(sid_str,"(NULL)"); } mem_ctx = talloc_init("samr_info for domain sid %s", sid_str); if ((info = TALLOC_ZERO_P(mem_ctx, struct samr_info)) == NULL) return NULL; DEBUG(10,("get_samr_info_by_sid: created new info for sid %s\n", sid_str)); if (psid) { sid_copy( &info->sid, psid); info->builtin_domain = sid_check_is_builtin(psid); } else { DEBUG(10,("get_samr_info_by_sid: created new info for NULL sid.\n")); info->builtin_domain = False; } info->mem_ctx = mem_ctx; info->disp_info = get_samr_dispinfo_by_sid(psid); return info; } /******************************************************************* Function to free the per SID data. ********************************************************************/ static void free_samr_cache(DISP_INFO *disp_info) { DEBUG(10, ("free_samr_cache: deleting cache for SID %s\n", sid_string_static(&disp_info->sid))); /* We need to become root here because the paged search might have to * tell the LDAP server we're not interested in the rest anymore. */ become_root(); if (disp_info->users) { DEBUG(10,("free_samr_cache: deleting users cache\n")); pdb_search_destroy(disp_info->users); disp_info->users = NULL; } if (disp_info->machines) { DEBUG(10,("free_samr_cache: deleting machines cache\n")); pdb_search_destroy(disp_info->machines); disp_info->machines = NULL; } if (disp_info->groups) { DEBUG(10,("free_samr_cache: deleting groups cache\n")); pdb_search_destroy(disp_info->groups); disp_info->groups = NULL; } if (disp_info->aliases) { DEBUG(10,("free_samr_cache: deleting aliases cache\n")); pdb_search_destroy(disp_info->aliases); disp_info->aliases = NULL; } if (disp_info->enum_users) { DEBUG(10,("free_samr_cache: deleting enum_users cache\n")); pdb_search_destroy(disp_info->enum_users); disp_info->enum_users = NULL; } disp_info->enum_acb_mask = 0; unbecome_root(); } /******************************************************************* Function to free the per handle data. ********************************************************************/ static void free_samr_info(void *ptr) { struct samr_info *info=(struct samr_info *) ptr; /* Only free the dispinfo cache if no one bothered to set up a timeout. */ if (info->disp_info && info->disp_info->cache_timeout_event == NULL) { free_samr_cache(info->disp_info); } talloc_destroy(info->mem_ctx); } /******************************************************************* Idle event handler. Throw away the disp info cache. ********************************************************************/ static void disp_info_cache_idle_timeout_handler(struct event_context *ev_ctx, struct timed_event *te, const struct timeval *now, void *private_data) { DISP_INFO *disp_info = (DISP_INFO *)private_data; TALLOC_FREE(disp_info->cache_timeout_event); DEBUG(10, ("disp_info_cache_idle_timeout_handler: caching timed " "out\n")); free_samr_cache(disp_info); } /******************************************************************* Setup cache removal idle event handler. ********************************************************************/ static void set_disp_info_cache_timeout(DISP_INFO *disp_info, time_t secs_fromnow) { /* Remove any pending timeout and update. */ TALLOC_FREE(disp_info->cache_timeout_event); DEBUG(10,("set_disp_info_cache_timeout: caching enumeration for " "SID %s for %u seconds\n", sid_string_static(&disp_info->sid), (unsigned int)secs_fromnow )); disp_info->cache_timeout_event = event_add_timed( smbd_event_context(), NULL, timeval_current_ofs(secs_fromnow, 0), "disp_info_cache_idle_timeout_handler", disp_info_cache_idle_timeout_handler, (void *)disp_info); } /******************************************************************* Force flush any cache. We do this on any samr_set_xxx call. We must also remove the timeout handler. ********************************************************************/ static void force_flush_samr_cache(DISP_INFO *disp_info) { if ((disp_info == NULL) || (disp_info->cache_timeout_event == NULL)) { return; } DEBUG(10,("force_flush_samr_cache: clearing idle event\n")); TALLOC_FREE(disp_info->cache_timeout_event); free_samr_cache(disp_info); } /******************************************************************* Ensure password info is never given out. Paranioa... JRA. ********************************************************************/ static void samr_clear_sam_passwd(struct samu *sam_pass) { if (!sam_pass) return; /* These now zero out the old password */ pdb_set_lanman_passwd(sam_pass, NULL, PDB_DEFAULT); pdb_set_nt_passwd(sam_pass, NULL, PDB_DEFAULT); } static uint32 count_sam_users(struct disp_info *info, uint32 acct_flags) { struct samr_displayentry *entry; if (info->builtin_domain) { /* No users in builtin. */ return 0; } if (info->users == NULL) { info->users = pdb_search_users(acct_flags); if (info->users == NULL) { return 0; } } /* Fetch the last possible entry, thus trigger an enumeration */ pdb_search_entries(info->users, 0xffffffff, 1, &entry); /* Ensure we cache this enumeration. */ set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT); return info->users->num_entries; } static uint32 count_sam_groups(struct disp_info *info) { struct samr_displayentry *entry; if (info->builtin_domain) { /* No groups in builtin. */ return 0; } if (info->groups == NULL) { info->groups = pdb_search_groups(); if (info->groups == NULL) { return 0; } } /* Fetch the last possible entry, thus trigger an enumeration */ pdb_search_entries(info->groups, 0xffffffff, 1, &entry); /* Ensure we cache this enumeration. */ set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT); return info->groups->num_entries; } static uint32 count_sam_aliases(struct disp_info *info) { struct samr_displayentry *entry; if (info->aliases == NULL) { info->aliases = pdb_search_aliases(&info->sid); if (info->aliases == NULL) { return 0; } } /* Fetch the last possible entry, thus trigger an enumeration */ pdb_search_entries(info->aliases, 0xffffffff, 1, &entry); /* Ensure we cache this enumeration. */ set_disp_info_cache_timeout(info, DISP_INFO_CACHE_TIMEOUT); return info->aliases->num_entries; } /******************************************************************* _samr_close_hnd ********************************************************************/ NTSTATUS _samr_close_hnd(pipes_struct *p, SAMR_Q_CLOSE_HND *q_u, SAMR_R_CLOSE_HND *r_u) { r_u->status = NT_STATUS_OK; /* close the policy handle */ if (!close_policy_hnd(p, &q_u->pol)) return NT_STATUS_OBJECT_NAME_INVALID; DEBUG(5,("samr_reply_close_hnd: %d\n", __LINE__)); return r_u->status; } /******************************************************************* samr_reply_open_domain ********************************************************************/ NTSTATUS _samr_open_domain(pipes_struct *p, SAMR_Q_OPEN_DOMAIN *q_u, SAMR_R_OPEN_DOMAIN *r_u) { struct samr_info *info; SEC_DESC *psd = NULL; uint32 acc_granted; uint32 des_access = q_u->flags; NTSTATUS status; size_t sd_size; SE_PRIV se_rights; r_u->status = NT_STATUS_OK; /* find the connection policy handle. */ if ( !find_policy_by_hnd(p, &q_u->pol, (void**)(void *)&info) ) return NT_STATUS_INVALID_HANDLE; status = access_check_samr_function( info->acc_granted, SA_RIGHT_SAM_OPEN_DOMAIN, "_samr_open_domain" ); if ( !NT_STATUS_IS_OK(status) ) return status; /*check if access can be granted as requested by client. */ make_samr_object_sd( p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0 ); se_map_generic( &des_access, &dom_generic_mapping ); se_priv_copy( &se_rights, &se_machine_account ); se_priv_add( &se_rights, &se_add_users ); status = access_check_samr_object( psd, p->pipe_user.nt_user_token, &se_rights, GENERIC_RIGHTS_DOMAIN_WRITE, des_access, &acc_granted, "_samr_open_domain" ); if ( !NT_STATUS_IS_OK(status) ) return status; if (!sid_check_is_domain(&q_u->dom_sid.sid) && !sid_check_is_builtin(&q_u->dom_sid.sid)) { return NT_STATUS_NO_SUCH_DOMAIN; } /* associate the domain SID with the (unique) handle. */ if ((info = get_samr_info_by_sid(&q_u->dom_sid.sid))==NULL) return NT_STATUS_NO_MEMORY; info->acc_granted = acc_granted; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &r_u->domain_pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; DEBUG(5,("samr_open_domain: %d\n", __LINE__)); return r_u->status; } /******************************************************************* _samr_get_usrdom_pwinfo ********************************************************************/ NTSTATUS _samr_get_usrdom_pwinfo(pipes_struct *p, SAMR_Q_GET_USRDOM_PWINFO *q_u, SAMR_R_GET_USRDOM_PWINFO *r_u) { struct samr_info *info = NULL; r_u->status = NT_STATUS_OK; /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->user_pol, (void **)(void *)&info)) return NT_STATUS_INVALID_HANDLE; if (!sid_check_is_in_our_domain(&info->sid)) return NT_STATUS_OBJECT_TYPE_MISMATCH; init_samr_r_get_usrdom_pwinfo(r_u, NT_STATUS_OK); DEBUG(5,("_samr_get_usrdom_pwinfo: %d\n", __LINE__)); /* * NT sometimes return NT_STATUS_ACCESS_DENIED * I don't know yet why. */ return r_u->status; } /******************************************************************* ********************************************************************/ static BOOL get_lsa_policy_samr_sid( pipes_struct *p, POLICY_HND *pol, DOM_SID *sid, uint32 *acc_granted, DISP_INFO **ppdisp_info) { struct samr_info *info = NULL; /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, pol, (void **)(void *)&info)) return False; if (!info) return False; *sid = info->sid; *acc_granted = info->acc_granted; if (ppdisp_info) { *ppdisp_info = info->disp_info; } return True; } /******************************************************************* _samr_set_sec_obj ********************************************************************/ NTSTATUS _samr_set_sec_obj(pipes_struct *p, SAMR_Q_SET_SEC_OBJ *q_u, SAMR_R_SET_SEC_OBJ *r_u) { DOM_SID pol_sid; uint32 acc_granted, i; SEC_ACL *dacl; BOOL ret; struct samu *sampass=NULL; NTSTATUS status; r_u->status = NT_STATUS_OK; if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; if (!(sampass = samu_new( p->mem_ctx))) { DEBUG(0,("No memory!\n")); return NT_STATUS_NO_MEMORY; } /* get the user record */ become_root(); ret = pdb_getsampwsid(sampass, &pol_sid); unbecome_root(); if (!ret) { DEBUG(4, ("User %s not found\n", sid_string_static(&pol_sid))); TALLOC_FREE(sampass); return NT_STATUS_INVALID_HANDLE; } dacl = q_u->buf->sd->dacl; for (i=0; i < dacl->num_aces; i++) { if (sid_equal(&pol_sid, &dacl->aces[i].trustee)) { ret = pdb_set_pass_can_change(sampass, (dacl->aces[i].access_mask & SA_RIGHT_USER_CHANGE_PASSWORD) ? True: False); break; } } if (!ret) { TALLOC_FREE(sampass); return NT_STATUS_ACCESS_DENIED; } status = access_check_samr_function(acc_granted, SA_RIGHT_USER_SET_ATTRIBUTES, "_samr_set_sec_obj"); if (NT_STATUS_IS_OK(status)) { become_root(); status = pdb_update_sam_account(sampass); unbecome_root(); } TALLOC_FREE(sampass); return status; } /******************************************************************* build correct perms based on policies and password times for _samr_query_sec_obj *******************************************************************/ static BOOL check_change_pw_access(TALLOC_CTX *mem_ctx, DOM_SID *user_sid) { struct samu *sampass=NULL; BOOL ret; if ( !(sampass = samu_new( mem_ctx )) ) { DEBUG(0,("No memory!\n")); return False; } become_root(); ret = pdb_getsampwsid(sampass, user_sid); unbecome_root(); if (ret == False) { DEBUG(4,("User %s not found\n", sid_string_static(user_sid))); TALLOC_FREE(sampass); return False; } DEBUG(3,("User:[%s]\n", pdb_get_username(sampass) )); if (pdb_get_pass_can_change(sampass)) { TALLOC_FREE(sampass); return True; } TALLOC_FREE(sampass); return False; } /******************************************************************* _samr_query_sec_obj ********************************************************************/ NTSTATUS _samr_query_sec_obj(pipes_struct *p, SAMR_Q_QUERY_SEC_OBJ *q_u, SAMR_R_QUERY_SEC_OBJ *r_u) { DOM_SID pol_sid; fstring str_sid; SEC_DESC * psd = NULL; uint32 acc_granted; size_t sd_size; r_u->status = NT_STATUS_OK; /* Get the SID. */ if (!get_lsa_policy_samr_sid(p, &q_u->user_pol, &pol_sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; DEBUG(10,("_samr_query_sec_obj: querying security on SID: %s\n", sid_to_string(str_sid, &pol_sid))); /* Check what typ of SID is beeing queried (e.g Domain SID, User SID, Group SID) */ /* To query the security of the SAM it self an invalid SID with S-0-0 is passed to this function */ if (pol_sid.sid_rev_num == 0) { DEBUG(5,("_samr_query_sec_obj: querying security on SAM\n")); r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0); } else if (sid_equal(&pol_sid,get_global_sam_sid())) { /* check if it is our domain SID */ DEBUG(5,("_samr_query_sec_obj: querying security on Domain with SID: %s\n", sid_to_string(str_sid, &pol_sid))); r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0); } else if (sid_equal(&pol_sid,&global_sid_Builtin)) { /* check if it is the Builtin Domain */ /* TODO: Builtin probably needs a different SD with restricted write access*/ DEBUG(5,("_samr_query_sec_obj: querying security on Builtin Domain with SID: %s\n", sid_to_string(str_sid, &pol_sid))); r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &dom_generic_mapping, NULL, 0); } else if (sid_check_is_in_our_domain(&pol_sid) || sid_check_is_in_builtin(&pol_sid)) { /* TODO: different SDs have to be generated for aliases groups and users. Currently all three get a default user SD */ DEBUG(10,("_samr_query_sec_obj: querying security on Object with SID: %s\n", sid_to_string(str_sid, &pol_sid))); if (check_change_pw_access(p->mem_ctx, &pol_sid)) { r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &pol_sid, SAMR_USR_RIGHTS_WRITE_PW); } else { r_u->status = make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_nopwchange_generic_mapping, &pol_sid, SAMR_USR_RIGHTS_CANT_WRITE_PW); } } else { return NT_STATUS_OBJECT_TYPE_MISMATCH; } if ((r_u->buf = make_sec_desc_buf(p->mem_ctx, sd_size, psd)) == NULL) return NT_STATUS_NO_MEMORY; if (NT_STATUS_IS_OK(r_u->status)) r_u->ptr = 1; return r_u->status; } /******************************************************************* makes a SAM_ENTRY / UNISTR2* structure from a user list. ********************************************************************/ static NTSTATUS make_user_sam_entry_list(TALLOC_CTX *ctx, SAM_ENTRY **sam_pp, UNISTR2 **uni_name_pp, uint32 num_entries, uint32 start_idx, struct samr_displayentry *entries) { uint32 i; SAM_ENTRY *sam; UNISTR2 *uni_name; *sam_pp = NULL; *uni_name_pp = NULL; if (num_entries == 0) return NT_STATUS_OK; sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_entries); uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_entries); if (sam == NULL || uni_name == NULL) { DEBUG(0, ("make_user_sam_entry_list: TALLOC_ZERO failed!\n")); return NT_STATUS_NO_MEMORY; } for (i = 0; i < num_entries; i++) { UNISTR2 uni_temp_name; /* * usrmgr expects a non-NULL terminated string with * trust relationships */ if (entries[i].acct_flags & ACB_DOMTRUST) { init_unistr2(&uni_temp_name, entries[i].account_name, UNI_FLAGS_NONE); } else { init_unistr2(&uni_temp_name, entries[i].account_name, UNI_STR_TERMINATE); } init_sam_entry(&sam[i], &uni_temp_name, entries[i].rid); copy_unistr2(&uni_name[i], &uni_temp_name); } *sam_pp = sam; *uni_name_pp = uni_name; return NT_STATUS_OK; } /******************************************************************* samr_reply_enum_dom_users ********************************************************************/ NTSTATUS _samr_enum_dom_users(pipes_struct *p, SAMR_Q_ENUM_DOM_USERS *q_u, SAMR_R_ENUM_DOM_USERS *r_u) { struct samr_info *info = NULL; int num_account; uint32 enum_context=q_u->start_idx; enum remote_arch_types ra_type = get_remote_arch(); int max_sam_entries = (ra_type == RA_WIN95) ? MAX_SAM_ENTRIES_W95 : MAX_SAM_ENTRIES_W2K; uint32 max_entries = max_sam_entries; struct samr_displayentry *entries = NULL; r_u->status = NT_STATUS_OK; /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_ENUM_ACCOUNTS, "_samr_enum_dom_users"))) { return r_u->status; } DEBUG(5,("_samr_enum_dom_users: %d\n", __LINE__)); if (info->builtin_domain) { /* No users in builtin. */ init_samr_r_enum_dom_users(r_u, q_u->start_idx, 0); DEBUG(5,("_samr_enum_dom_users: No users in BUILTIN\n")); return r_u->status; } become_root(); /* AS ROOT !!!! */ if ((info->disp_info->enum_users != NULL) && (info->disp_info->enum_acb_mask != q_u->acb_mask)) { pdb_search_destroy(info->disp_info->enum_users); info->disp_info->enum_users = NULL; } if (info->disp_info->enum_users == NULL) { info->disp_info->enum_users = pdb_search_users(q_u->acb_mask); info->disp_info->enum_acb_mask = q_u->acb_mask; } if (info->disp_info->enum_users == NULL) { /* END AS ROOT !!!! */ unbecome_root(); return NT_STATUS_ACCESS_DENIED; } num_account = pdb_search_entries(info->disp_info->enum_users, enum_context, max_entries, &entries); /* END AS ROOT !!!! */ unbecome_root(); if (num_account == 0) { DEBUG(5, ("_samr_enum_dom_users: enumeration handle over " "total entries\n")); init_samr_r_enum_dom_users(r_u, q_u->start_idx, 0); return NT_STATUS_OK; } r_u->status = make_user_sam_entry_list(p->mem_ctx, &r_u->sam, &r_u->uni_acct_name, num_account, enum_context, entries); if (!NT_STATUS_IS_OK(r_u->status)) return r_u->status; if (max_entries <= num_account) { r_u->status = STATUS_MORE_ENTRIES; } else { r_u->status = NT_STATUS_OK; } /* Ensure we cache this enumeration. */ set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT); DEBUG(5, ("_samr_enum_dom_users: %d\n", __LINE__)); init_samr_r_enum_dom_users(r_u, q_u->start_idx + num_account, num_account); DEBUG(5,("_samr_enum_dom_users: %d\n", __LINE__)); return r_u->status; } /******************************************************************* makes a SAM_ENTRY / UNISTR2* structure from a group list. ********************************************************************/ static void make_group_sam_entry_list(TALLOC_CTX *ctx, SAM_ENTRY **sam_pp, UNISTR2 **uni_name_pp, uint32 num_sam_entries, struct samr_displayentry *entries) { uint32 i; SAM_ENTRY *sam; UNISTR2 *uni_name; *sam_pp = NULL; *uni_name_pp = NULL; if (num_sam_entries == 0) return; sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_sam_entries); uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_sam_entries); if (sam == NULL || uni_name == NULL) { DEBUG(0, ("NULL pointers in SAMR_R_QUERY_DISPINFO\n")); return; } for (i = 0; i < num_sam_entries; i++) { /* * JRA. I think this should include the null. TNG does not. */ init_unistr2(&uni_name[i], entries[i].account_name, UNI_STR_TERMINATE); init_sam_entry(&sam[i], &uni_name[i], entries[i].rid); } *sam_pp = sam; *uni_name_pp = uni_name; } /******************************************************************* samr_reply_enum_dom_groups ********************************************************************/ NTSTATUS _samr_enum_dom_groups(pipes_struct *p, SAMR_Q_ENUM_DOM_GROUPS *q_u, SAMR_R_ENUM_DOM_GROUPS *r_u) { struct samr_info *info = NULL; struct samr_displayentry *groups; uint32 num_groups; r_u->status = NT_STATUS_OK; /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info)) return NT_STATUS_INVALID_HANDLE; r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_ENUM_ACCOUNTS, "_samr_enum_dom_groups"); if (!NT_STATUS_IS_OK(r_u->status)) return r_u->status; DEBUG(5,("samr_reply_enum_dom_groups: %d\n", __LINE__)); if (info->builtin_domain) { /* No groups in builtin. */ init_samr_r_enum_dom_groups(r_u, q_u->start_idx, 0); DEBUG(5,("_samr_enum_dom_users: No groups in BUILTIN\n")); return r_u->status; } /* the domain group array is being allocated in the function below */ become_root(); if (info->disp_info->groups == NULL) { info->disp_info->groups = pdb_search_groups(); if (info->disp_info->groups == NULL) { unbecome_root(); return NT_STATUS_ACCESS_DENIED; } } num_groups = pdb_search_entries(info->disp_info->groups, q_u->start_idx, MAX_SAM_ENTRIES, &groups); unbecome_root(); /* Ensure we cache this enumeration. */ set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT); make_group_sam_entry_list(p->mem_ctx, &r_u->sam, &r_u->uni_grp_name, num_groups, groups); init_samr_r_enum_dom_groups(r_u, q_u->start_idx, num_groups); DEBUG(5,("samr_enum_dom_groups: %d\n", __LINE__)); return r_u->status; } /******************************************************************* samr_reply_enum_dom_aliases ********************************************************************/ NTSTATUS _samr_enum_dom_aliases(pipes_struct *p, SAMR_Q_ENUM_DOM_ALIASES *q_u, SAMR_R_ENUM_DOM_ALIASES *r_u) { struct samr_info *info; struct samr_displayentry *aliases; uint32 num_aliases = 0; /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info)) return NT_STATUS_INVALID_HANDLE; r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_ENUM_ACCOUNTS, "_samr_enum_dom_aliases"); if (!NT_STATUS_IS_OK(r_u->status)) return r_u->status; DEBUG(5,("samr_reply_enum_dom_aliases: sid %s\n", sid_string_static(&info->sid))); become_root(); if (info->disp_info->aliases == NULL) { info->disp_info->aliases = pdb_search_aliases(&info->sid); if (info->disp_info->aliases == NULL) { unbecome_root(); return NT_STATUS_ACCESS_DENIED; } } num_aliases = pdb_search_entries(info->disp_info->aliases, q_u->start_idx, MAX_SAM_ENTRIES, &aliases); unbecome_root(); /* Ensure we cache this enumeration. */ set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT); make_group_sam_entry_list(p->mem_ctx, &r_u->sam, &r_u->uni_grp_name, num_aliases, aliases); init_samr_r_enum_dom_aliases(r_u, q_u->start_idx + num_aliases, num_aliases); DEBUG(5,("samr_enum_dom_aliases: %d\n", __LINE__)); return r_u->status; } /******************************************************************* samr_reply_query_dispinfo ********************************************************************/ NTSTATUS _samr_query_dispinfo(pipes_struct *p, SAMR_Q_QUERY_DISPINFO *q_u, SAMR_R_QUERY_DISPINFO *r_u) { struct samr_info *info = NULL; uint32 struct_size=0x20; /* W2K always reply that, client doesn't care */ uint32 max_entries=q_u->max_entries; uint32 enum_context=q_u->start_idx; uint32 max_size=q_u->max_size; SAM_DISPINFO_CTR *ctr; uint32 temp_size=0, total_data_size=0; NTSTATUS disp_ret = NT_STATUS_UNSUCCESSFUL; uint32 num_account = 0; enum remote_arch_types ra_type = get_remote_arch(); int max_sam_entries = (ra_type == RA_WIN95) ? MAX_SAM_ENTRIES_W95 : MAX_SAM_ENTRIES_W2K; struct samr_displayentry *entries = NULL; DEBUG(5, ("samr_reply_query_dispinfo: %d\n", __LINE__)); r_u->status = NT_STATUS_UNSUCCESSFUL; /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info)) return NT_STATUS_INVALID_HANDLE; /* * calculate how many entries we will return. * based on * - the number of entries the client asked * - our limit on that * - the starting point (enumeration context) * - the buffer size the client will accept */ /* * We are a lot more like W2K. Instead of reading the SAM * each time to find the records we need to send back, * we read it once and link that copy to the sam handle. * For large user list (over the MAX_SAM_ENTRIES) * it's a definitive win. * second point to notice: between enumerations * our sam is now the same as it's a snapshoot. * third point: got rid of the static SAM_USER_21 struct * no more intermediate. * con: it uses much more memory, as a full copy is stored * in memory. * * If you want to change it, think twice and think * of the second point , that's really important. * * JFM, 12/20/2001 */ if ((q_u->switch_level < 1) || (q_u->switch_level > 5)) { DEBUG(0,("_samr_query_dispinfo: Unknown info level (%u)\n", (unsigned int)q_u->switch_level )); return NT_STATUS_INVALID_INFO_CLASS; } /* first limit the number of entries we will return */ if(max_entries > max_sam_entries) { DEBUG(5, ("samr_reply_query_dispinfo: client requested %d " "entries, limiting to %d\n", max_entries, max_sam_entries)); max_entries = max_sam_entries; } /* calculate the size and limit on the number of entries we will * return */ temp_size=max_entries*struct_size; if (temp_size>max_size) { max_entries=MIN((max_size/struct_size),max_entries);; DEBUG(5, ("samr_reply_query_dispinfo: buffer size limits to " "only %d entries\n", max_entries)); } if (!(ctr = TALLOC_ZERO_P(p->mem_ctx,SAM_DISPINFO_CTR))) return NT_STATUS_NO_MEMORY; ZERO_STRUCTP(ctr); become_root(); /* THe following done as ROOT. Don't return without unbecome_root(). */ switch (q_u->switch_level) { case 0x1: case 0x4: if (info->disp_info->users == NULL) { info->disp_info->users = pdb_search_users(ACB_NORMAL); if (info->disp_info->users == NULL) { unbecome_root(); return NT_STATUS_ACCESS_DENIED; } DEBUG(10,("samr_reply_query_dispinfo: starting user enumeration at index %u\n", (unsigned int)enum_context )); } else { DEBUG(10,("samr_reply_query_dispinfo: using cached user enumeration at index %u\n", (unsigned int)enum_context )); } num_account = pdb_search_entries(info->disp_info->users, enum_context, max_entries, &entries); break; case 0x2: if (info->disp_info->machines == NULL) { info->disp_info->machines = pdb_search_users(ACB_WSTRUST|ACB_SVRTRUST); if (info->disp_info->machines == NULL) { unbecome_root(); return NT_STATUS_ACCESS_DENIED; } DEBUG(10,("samr_reply_query_dispinfo: starting machine enumeration at index %u\n", (unsigned int)enum_context )); } else { DEBUG(10,("samr_reply_query_dispinfo: using cached machine enumeration at index %u\n", (unsigned int)enum_context )); } num_account = pdb_search_entries(info->disp_info->machines, enum_context, max_entries, &entries); break; case 0x3: case 0x5: if (info->disp_info->groups == NULL) { info->disp_info->groups = pdb_search_groups(); if (info->disp_info->groups == NULL) { unbecome_root(); return NT_STATUS_ACCESS_DENIED; } DEBUG(10,("samr_reply_query_dispinfo: starting group enumeration at index %u\n", (unsigned int)enum_context )); } else { DEBUG(10,("samr_reply_query_dispinfo: using cached group enumeration at index %u\n", (unsigned int)enum_context )); } num_account = pdb_search_entries(info->disp_info->groups, enum_context, max_entries, &entries); break; default: unbecome_root(); smb_panic("info class changed"); break; } unbecome_root(); /* Now create reply structure */ switch (q_u->switch_level) { case 0x1: disp_ret = init_sam_dispinfo_1(p->mem_ctx, &ctr->sam.info1, num_account, enum_context, entries); break; case 0x2: disp_ret = init_sam_dispinfo_2(p->mem_ctx, &ctr->sam.info2, num_account, enum_context, entries); break; case 0x3: disp_ret = init_sam_dispinfo_3(p->mem_ctx, &ctr->sam.info3, num_account, enum_context, entries); break; case 0x4: disp_ret = init_sam_dispinfo_4(p->mem_ctx, &ctr->sam.info4, num_account, enum_context, entries); break; case 0x5: disp_ret = init_sam_dispinfo_5(p->mem_ctx, &ctr->sam.info5, num_account, enum_context, entries); break; default: smb_panic("info class changed"); break; } if (!NT_STATUS_IS_OK(disp_ret)) return disp_ret; /* calculate the total size */ total_data_size=num_account*struct_size; if (num_account) { r_u->status = STATUS_MORE_ENTRIES; } else { r_u->status = NT_STATUS_OK; } /* Ensure we cache this enumeration. */ set_disp_info_cache_timeout(info->disp_info, DISP_INFO_CACHE_TIMEOUT); DEBUG(5, ("_samr_query_dispinfo: %d\n", __LINE__)); init_samr_r_query_dispinfo(r_u, num_account, total_data_size, temp_size, q_u->switch_level, ctr, r_u->status); return r_u->status; } /******************************************************************* samr_reply_query_aliasinfo ********************************************************************/ NTSTATUS _samr_query_aliasinfo(pipes_struct *p, SAMR_Q_QUERY_ALIASINFO *q_u, SAMR_R_QUERY_ALIASINFO *r_u) { DOM_SID sid; struct acct_info info; uint32 acc_granted; BOOL ret; r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_query_aliasinfo: %d\n", __LINE__)); /* find the policy handle. open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->pol, &sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_LOOKUP_INFO, "_samr_query_aliasinfo"))) { return r_u->status; } become_root(); ret = pdb_get_aliasinfo(&sid, &info); unbecome_root(); if ( !ret ) return NT_STATUS_NO_SUCH_ALIAS; if ( !(r_u->ctr = TALLOC_ZERO_P( p->mem_ctx, ALIAS_INFO_CTR )) ) return NT_STATUS_NO_MEMORY; switch (q_u->level ) { case 1: r_u->ctr->level = 1; init_samr_alias_info1(&r_u->ctr->alias.info1, info.acct_name, 1, info.acct_desc); break; case 3: r_u->ctr->level = 3; init_samr_alias_info3(&r_u->ctr->alias.info3, info.acct_desc); break; default: return NT_STATUS_INVALID_INFO_CLASS; } DEBUG(5,("_samr_query_aliasinfo: %d\n", __LINE__)); return r_u->status; } #if 0 /******************************************************************* samr_reply_lookup_ids ********************************************************************/ uint32 _samr_lookup_ids(pipes_struct *p, SAMR_Q_LOOKUP_IDS *q_u, SAMR_R_LOOKUP_IDS *r_u) { uint32 rid[MAX_SAM_ENTRIES]; int num_rids = q_u->num_sids1; r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_lookup_ids: %d\n", __LINE__)); if (num_rids > MAX_SAM_ENTRIES) { num_rids = MAX_SAM_ENTRIES; DEBUG(5,("_samr_lookup_ids: truncating entries to %d\n", num_rids)); } #if 0 int i; SMB_ASSERT_ARRAY(q_u->uni_user_name, num_rids); for (i = 0; i < num_rids && status == 0; i++) { struct sam_passwd *sam_pass; fstring user_name; fstrcpy(user_name, unistrn2(q_u->uni_user_name[i].buffer, q_u->uni_user_name[i].uni_str_len)); /* find the user account */ become_root(); sam_pass = get_smb21pwd_entry(user_name, 0); unbecome_root(); if (sam_pass == NULL) { status = 0xC0000000 | NT_STATUS_NO_SUCH_USER; rid[i] = 0; } else { rid[i] = sam_pass->user_rid; } } #endif num_rids = 1; rid[0] = BUILTIN_ALIAS_RID_USERS; init_samr_r_lookup_ids(&r_u, num_rids, rid, NT_STATUS_OK); DEBUG(5,("_samr_lookup_ids: %d\n", __LINE__)); return r_u->status; } #endif /******************************************************************* _samr_lookup_names ********************************************************************/ NTSTATUS _samr_lookup_names(pipes_struct *p, SAMR_Q_LOOKUP_NAMES *q_u, SAMR_R_LOOKUP_NAMES *r_u) { uint32 rid[MAX_SAM_ENTRIES]; enum lsa_SidType type[MAX_SAM_ENTRIES]; int i; int num_rids = q_u->num_names2; DOM_SID pol_sid; fstring sid_str; uint32 acc_granted; r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_lookup_names: %d\n", __LINE__)); ZERO_ARRAY(rid); ZERO_ARRAY(type); if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL)) { init_samr_r_lookup_names(p->mem_ctx, r_u, 0, NULL, NULL, NT_STATUS_OBJECT_TYPE_MISMATCH); return r_u->status; } if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, 0, "_samr_lookup_names"))) { /* Don't know the acc_bits yet */ return r_u->status; } if (num_rids > MAX_SAM_ENTRIES) { num_rids = MAX_SAM_ENTRIES; DEBUG(5,("_samr_lookup_names: truncating entries to %d\n", num_rids)); } DEBUG(5,("_samr_lookup_names: looking name on SID %s\n", sid_to_string(sid_str, &pol_sid))); for (i = 0; i < num_rids; i++) { fstring name; int ret; r_u->status = NT_STATUS_NONE_MAPPED; type[i] = SID_NAME_UNKNOWN; rid [i] = 0xffffffff; ret = rpcstr_pull(name, q_u->uni_name[i].buffer, sizeof(name), q_u->uni_name[i].uni_str_len*2, 0); if (ret <= 0) { continue; } if (sid_check_is_builtin(&pol_sid)) { if (lookup_builtin_name(name, &rid[i])) { type[i] = SID_NAME_ALIAS; } } else { lookup_global_sam_name(name, 0, &rid[i], &type[i]); } if (type[i] != SID_NAME_UNKNOWN) { r_u->status = NT_STATUS_OK; } } init_samr_r_lookup_names(p->mem_ctx, r_u, num_rids, rid, type, r_u->status); DEBUG(5,("_samr_lookup_names: %d\n", __LINE__)); return r_u->status; } /******************************************************************* _samr_chgpasswd_user ********************************************************************/ NTSTATUS _samr_chgpasswd_user(pipes_struct *p, SAMR_Q_CHGPASSWD_USER *q_u, SAMR_R_CHGPASSWD_USER *r_u) { fstring user_name; fstring wks; DEBUG(5,("_samr_chgpasswd_user: %d\n", __LINE__)); r_u->status = NT_STATUS_OK; rpcstr_pull(user_name, q_u->uni_user_name.buffer, sizeof(user_name), q_u->uni_user_name.uni_str_len*2, 0); rpcstr_pull(wks, q_u->uni_dest_host.buffer, sizeof(wks), q_u->uni_dest_host.uni_str_len*2,0); DEBUG(5,("samr_chgpasswd_user: user: %s wks: %s\n", user_name, wks)); /* * Pass the user through the NT -> unix user mapping * function. */ (void)map_username(user_name); /* * UNIX username case mangling not required, pass_oem_change * is case insensitive. */ r_u->status = pass_oem_change(user_name, q_u->lm_newpass.pass, q_u->lm_oldhash.hash, q_u->nt_newpass.pass, q_u->nt_oldhash.hash, NULL); init_samr_r_chgpasswd_user(r_u, r_u->status); DEBUG(5,("_samr_chgpasswd_user: %d\n", __LINE__)); return r_u->status; } /******************************************************************* _samr_chgpasswd_user3 ********************************************************************/ NTSTATUS _samr_chgpasswd_user3(pipes_struct *p, SAMR_Q_CHGPASSWD_USER3 *q_u, SAMR_R_CHGPASSWD_USER3 *r_u) { fstring user_name; fstring wks; uint32 reject_reason; SAM_UNK_INFO_1 *info = NULL; SAMR_CHANGE_REJECT *reject = NULL; DEBUG(5,("_samr_chgpasswd_user3: %d\n", __LINE__)); rpcstr_pull(user_name, q_u->uni_user_name.buffer, sizeof(user_name), q_u->uni_user_name.uni_str_len*2, 0); rpcstr_pull(wks, q_u->uni_dest_host.buffer, sizeof(wks), q_u->uni_dest_host.uni_str_len*2,0); DEBUG(5,("_samr_chgpasswd_user3: user: %s wks: %s\n", user_name, wks)); /* * Pass the user through the NT -> unix user mapping * function. */ (void)map_username(user_name); /* * UNIX username case mangling not required, pass_oem_change * is case insensitive. */ r_u->status = pass_oem_change(user_name, q_u->lm_newpass.pass, q_u->lm_oldhash.hash, q_u->nt_newpass.pass, q_u->nt_oldhash.hash, &reject_reason); if (NT_STATUS_EQUAL(r_u->status, NT_STATUS_PASSWORD_RESTRICTION) || NT_STATUS_EQUAL(r_u->status, NT_STATUS_ACCOUNT_RESTRICTION)) { uint32 min_pass_len,pass_hist,password_properties; time_t u_expire, u_min_age; NTTIME nt_expire, nt_min_age; uint32 account_policy_temp; if ((info = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_INFO_1)) == NULL) { return NT_STATUS_NO_MEMORY; } if ((reject = TALLOC_ZERO_P(p->mem_ctx, SAMR_CHANGE_REJECT)) == NULL) { return NT_STATUS_NO_MEMORY; } ZERO_STRUCTP(info); ZERO_STRUCTP(reject); become_root(); /* AS ROOT !!! */ pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp); min_pass_len = account_policy_temp; pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp); pass_hist = account_policy_temp; pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp); password_properties = account_policy_temp; pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp); u_expire = account_policy_temp; pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp); u_min_age = account_policy_temp; /* !AS ROOT */ unbecome_root(); unix_to_nt_time_abs(&nt_expire, u_expire); unix_to_nt_time_abs(&nt_min_age, u_min_age); init_unk_info1(info, (uint16)min_pass_len, (uint16)pass_hist, password_properties, nt_expire, nt_min_age); reject->reject_reason = reject_reason; } init_samr_r_chgpasswd_user3(r_u, r_u->status, reject, info); DEBUG(5,("_samr_chgpasswd_user3: %d\n", __LINE__)); return r_u->status; } /******************************************************************* makes a SAMR_R_LOOKUP_RIDS structure. ********************************************************************/ static BOOL make_samr_lookup_rids(TALLOC_CTX *ctx, uint32 num_names, const char **names, UNIHDR **pp_hdr_name, UNISTR2 **pp_uni_name) { uint32 i; UNIHDR *hdr_name=NULL; UNISTR2 *uni_name=NULL; *pp_uni_name = NULL; *pp_hdr_name = NULL; if (num_names != 0) { hdr_name = TALLOC_ZERO_ARRAY(ctx, UNIHDR, num_names); if (hdr_name == NULL) return False; uni_name = TALLOC_ZERO_ARRAY(ctx,UNISTR2, num_names); if (uni_name == NULL) return False; } for (i = 0; i < num_names; i++) { DEBUG(10, ("names[%d]:%s\n", i, names[i] && *names[i] ? names[i] : "")); init_unistr2(&uni_name[i], names[i], UNI_FLAGS_NONE); init_uni_hdr(&hdr_name[i], &uni_name[i]); } *pp_uni_name = uni_name; *pp_hdr_name = hdr_name; return True; } /******************************************************************* _samr_lookup_rids ********************************************************************/ NTSTATUS _samr_lookup_rids(pipes_struct *p, SAMR_Q_LOOKUP_RIDS *q_u, SAMR_R_LOOKUP_RIDS *r_u) { const char **names; enum lsa_SidType *attrs = NULL; uint32 *wire_attrs = NULL; UNIHDR *hdr_name = NULL; UNISTR2 *uni_name = NULL; DOM_SID pol_sid; int num_rids = (int)q_u->num_rids1; uint32 acc_granted; int i; r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__)); /* find the policy handle. open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->pol, &pol_sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; if (num_rids > 1000) { DEBUG(0, ("Got asked for %d rids (more than 1000) -- according " "to samba4 idl this is not possible\n", num_rids)); return NT_STATUS_UNSUCCESSFUL; } if (num_rids) { names = TALLOC_ZERO_ARRAY(p->mem_ctx, const char *, num_rids); attrs = TALLOC_ZERO_ARRAY(p->mem_ctx, enum lsa_SidType, num_rids); wire_attrs = TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_rids); if ((names == NULL) || (attrs == NULL) || (wire_attrs==NULL)) return NT_STATUS_NO_MEMORY; } else { names = NULL; attrs = NULL; wire_attrs = NULL; } become_root(); /* lookup_sid can require root privs */ r_u->status = pdb_lookup_rids(&pol_sid, num_rids, q_u->rid, names, attrs); unbecome_root(); if ( NT_STATUS_EQUAL(r_u->status, NT_STATUS_NONE_MAPPED) && (num_rids == 0) ) { r_u->status = NT_STATUS_OK; } if(!make_samr_lookup_rids(p->mem_ctx, num_rids, names, &hdr_name, &uni_name)) return NT_STATUS_NO_MEMORY; /* Convert from enum lsa_SidType to uint32 for wire format. */ for (i = 0; i < num_rids; i++) { wire_attrs[i] = (uint32)attrs[i]; } init_samr_r_lookup_rids(r_u, num_rids, hdr_name, uni_name, wire_attrs); DEBUG(5,("_samr_lookup_rids: %d\n", __LINE__)); return r_u->status; } /******************************************************************* _samr_open_user. Safe - gives out no passwd info. ********************************************************************/ NTSTATUS _samr_open_user(pipes_struct *p, SAMR_Q_OPEN_USER *q_u, SAMR_R_OPEN_USER *r_u) { struct samu *sampass=NULL; DOM_SID sid; POLICY_HND domain_pol = q_u->domain_pol; POLICY_HND *user_pol = &r_u->user_pol; struct samr_info *info = NULL; SEC_DESC *psd = NULL; uint32 acc_granted; uint32 des_access = q_u->access_mask; size_t sd_size; BOOL ret; NTSTATUS nt_status; SE_PRIV se_rights; r_u->status = NT_STATUS_OK; /* find the domain policy handle and get domain SID / access bits in the domain policy. */ if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) ) return NT_STATUS_INVALID_HANDLE; nt_status = access_check_samr_function( acc_granted, SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_user" ); if ( !NT_STATUS_IS_OK(nt_status) ) return nt_status; if ( !(sampass = samu_new( p->mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } /* append the user's RID to it */ if (!sid_append_rid(&sid, q_u->user_rid)) return NT_STATUS_NO_SUCH_USER; /* check if access can be granted as requested by client. */ make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &sid, SAMR_USR_RIGHTS_WRITE_PW); se_map_generic(&des_access, &usr_generic_mapping); se_priv_copy( &se_rights, &se_machine_account ); se_priv_add( &se_rights, &se_add_users ); nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, &acc_granted, "_samr_open_user"); if ( !NT_STATUS_IS_OK(nt_status) ) return nt_status; become_root(); ret=pdb_getsampwsid(sampass, &sid); unbecome_root(); /* check that the SID exists in our domain. */ if (ret == False) { return NT_STATUS_NO_SUCH_USER; } TALLOC_FREE(sampass); /* associate the user's SID and access bits with the new handle. */ if ((info = get_samr_info_by_sid(&sid)) == NULL) return NT_STATUS_NO_MEMORY; info->acc_granted = acc_granted; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; return r_u->status; } /************************************************************************* get_user_info_7. Safe. Only gives out account_name. *************************************************************************/ static NTSTATUS get_user_info_7(TALLOC_CTX *mem_ctx, SAM_USER_INFO_7 *id7, DOM_SID *user_sid) { struct samu *smbpass=NULL; BOOL ret; if ( !(smbpass = samu_new( mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(smbpass, user_sid); unbecome_root(); if ( !ret ) { DEBUG(4,("User %s not found\n", sid_string_static(user_sid))); return NT_STATUS_NO_SUCH_USER; } DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) )); ZERO_STRUCTP(id7); init_sam_user_info7(id7, pdb_get_username(smbpass) ); TALLOC_FREE(smbpass); return NT_STATUS_OK; } /************************************************************************* get_user_info_9. Only gives out primary group SID. *************************************************************************/ static NTSTATUS get_user_info_9(TALLOC_CTX *mem_ctx, SAM_USER_INFO_9 * id9, DOM_SID *user_sid) { struct samu *smbpass=NULL; BOOL ret; if ( !(smbpass = samu_new( mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(smbpass, user_sid); unbecome_root(); if (ret==False) { DEBUG(4,("User %s not found\n", sid_string_static(user_sid))); return NT_STATUS_NO_SUCH_USER; } DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) )); ZERO_STRUCTP(id9); init_sam_user_info9(id9, pdb_get_group_rid(smbpass) ); TALLOC_FREE(smbpass); return NT_STATUS_OK; } /************************************************************************* get_user_info_16. Safe. Only gives out acb bits. *************************************************************************/ static NTSTATUS get_user_info_16(TALLOC_CTX *mem_ctx, SAM_USER_INFO_16 *id16, DOM_SID *user_sid) { struct samu *smbpass=NULL; BOOL ret; if ( !(smbpass = samu_new( mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(smbpass, user_sid); unbecome_root(); if (ret==False) { DEBUG(4,("User %s not found\n", sid_string_static(user_sid))); return NT_STATUS_NO_SUCH_USER; } DEBUG(3,("User:[%s]\n", pdb_get_username(smbpass) )); ZERO_STRUCTP(id16); init_sam_user_info16(id16, pdb_get_acct_ctrl(smbpass) ); TALLOC_FREE(smbpass); return NT_STATUS_OK; } /************************************************************************* get_user_info_18. OK - this is the killer as it gives out password info. Ensure that this is only allowed on an encrypted connection with a root user. JRA. *************************************************************************/ static NTSTATUS get_user_info_18(pipes_struct *p, TALLOC_CTX *mem_ctx, SAM_USER_INFO_18 * id18, DOM_SID *user_sid) { struct samu *smbpass=NULL; BOOL ret; if (p->auth.auth_type != PIPE_AUTH_TYPE_NTLMSSP || p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) { return NT_STATUS_ACCESS_DENIED; } if (p->auth.auth_level != PIPE_AUTH_LEVEL_PRIVACY) { return NT_STATUS_ACCESS_DENIED; } /* * Do *NOT* do become_root()/unbecome_root() here ! JRA. */ if ( !(smbpass = samu_new( mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } ret = pdb_getsampwsid(smbpass, user_sid); if (ret == False) { DEBUG(4, ("User %s not found\n", sid_string_static(user_sid))); TALLOC_FREE(smbpass); return (geteuid() == (uid_t)0) ? NT_STATUS_NO_SUCH_USER : NT_STATUS_ACCESS_DENIED; } DEBUG(3,("User:[%s] 0x%x\n", pdb_get_username(smbpass), pdb_get_acct_ctrl(smbpass) )); if ( pdb_get_acct_ctrl(smbpass) & ACB_DISABLED) { TALLOC_FREE(smbpass); return NT_STATUS_ACCOUNT_DISABLED; } ZERO_STRUCTP(id18); init_sam_user_info18(id18, pdb_get_lanman_passwd(smbpass), pdb_get_nt_passwd(smbpass)); TALLOC_FREE(smbpass); return NT_STATUS_OK; } /************************************************************************* get_user_info_20 *************************************************************************/ static NTSTATUS get_user_info_20(TALLOC_CTX *mem_ctx, SAM_USER_INFO_20 *id20, DOM_SID *user_sid) { struct samu *sampass=NULL; BOOL ret; if ( !(sampass = samu_new( mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(sampass, user_sid); unbecome_root(); if (ret == False) { DEBUG(4,("User %s not found\n", sid_string_static(user_sid))); return NT_STATUS_NO_SUCH_USER; } samr_clear_sam_passwd(sampass); DEBUG(3,("User:[%s]\n", pdb_get_username(sampass) )); ZERO_STRUCTP(id20); init_sam_user_info20A(id20, sampass); TALLOC_FREE(sampass); return NT_STATUS_OK; } /************************************************************************* get_user_info_21 *************************************************************************/ static NTSTATUS get_user_info_21(TALLOC_CTX *mem_ctx, SAM_USER_INFO_21 *id21, DOM_SID *user_sid, DOM_SID *domain_sid) { struct samu *sampass=NULL; BOOL ret; NTSTATUS nt_status; if ( !(sampass = samu_new( mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(sampass, user_sid); unbecome_root(); if (ret == False) { DEBUG(4,("User %s not found\n", sid_string_static(user_sid))); return NT_STATUS_NO_SUCH_USER; } samr_clear_sam_passwd(sampass); DEBUG(3,("User:[%s]\n", pdb_get_username(sampass) )); ZERO_STRUCTP(id21); nt_status = init_sam_user_info21A(id21, sampass, domain_sid); TALLOC_FREE(sampass); return nt_status; } /******************************************************************* _samr_query_userinfo ********************************************************************/ NTSTATUS _samr_query_userinfo(pipes_struct *p, SAMR_Q_QUERY_USERINFO *q_u, SAMR_R_QUERY_USERINFO *r_u) { SAM_USERINFO_CTR *ctr; struct samr_info *info = NULL; DOM_SID domain_sid; uint32 rid; r_u->status=NT_STATUS_OK; /* search for the handle */ if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info)) return NT_STATUS_INVALID_HANDLE; domain_sid = info->sid; sid_split_rid(&domain_sid, &rid); if (!sid_check_is_in_our_domain(&info->sid)) return NT_STATUS_OBJECT_TYPE_MISMATCH; DEBUG(5,("_samr_query_userinfo: sid:%s\n", sid_string_static(&info->sid))); ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_USERINFO_CTR); if (!ctr) return NT_STATUS_NO_MEMORY; ZERO_STRUCTP(ctr); /* ok! user info levels (lots: see MSDEV help), off we go... */ ctr->switch_value = q_u->switch_value; DEBUG(5,("_samr_query_userinfo: user info level: %d\n", q_u->switch_value)); switch (q_u->switch_value) { case 7: ctr->info.id7 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_7); if (ctr->info.id7 == NULL) return NT_STATUS_NO_MEMORY; if (!NT_STATUS_IS_OK(r_u->status = get_user_info_7(p->mem_ctx, ctr->info.id7, &info->sid))) return r_u->status; break; case 9: ctr->info.id9 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_9); if (ctr->info.id9 == NULL) return NT_STATUS_NO_MEMORY; if (!NT_STATUS_IS_OK(r_u->status = get_user_info_9(p->mem_ctx, ctr->info.id9, &info->sid))) return r_u->status; break; case 16: ctr->info.id16 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_16); if (ctr->info.id16 == NULL) return NT_STATUS_NO_MEMORY; if (!NT_STATUS_IS_OK(r_u->status = get_user_info_16(p->mem_ctx, ctr->info.id16, &info->sid))) return r_u->status; break; case 18: ctr->info.id18 = TALLOC_ZERO_P(p->mem_ctx, SAM_USER_INFO_18); if (ctr->info.id18 == NULL) return NT_STATUS_NO_MEMORY; if (!NT_STATUS_IS_OK(r_u->status = get_user_info_18(p, p->mem_ctx, ctr->info.id18, &info->sid))) return r_u->status; break; case 20: ctr->info.id20 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_20); if (ctr->info.id20 == NULL) return NT_STATUS_NO_MEMORY; if (!NT_STATUS_IS_OK(r_u->status = get_user_info_20(p->mem_ctx, ctr->info.id20, &info->sid))) return r_u->status; break; case 21: ctr->info.id21 = TALLOC_ZERO_P(p->mem_ctx,SAM_USER_INFO_21); if (ctr->info.id21 == NULL) return NT_STATUS_NO_MEMORY; if (!NT_STATUS_IS_OK(r_u->status = get_user_info_21(p->mem_ctx, ctr->info.id21, &info->sid, &domain_sid))) return r_u->status; break; default: return NT_STATUS_INVALID_INFO_CLASS; } init_samr_r_query_userinfo(r_u, ctr, r_u->status); DEBUG(5,("_samr_query_userinfo: %d\n", __LINE__)); return r_u->status; } /******************************************************************* samr_reply_query_usergroups ********************************************************************/ NTSTATUS _samr_query_usergroups(pipes_struct *p, SAMR_Q_QUERY_USERGROUPS *q_u, SAMR_R_QUERY_USERGROUPS *r_u) { struct samu *sam_pass=NULL; DOM_SID sid; DOM_SID *sids; DOM_GID dom_gid; DOM_GID *gids = NULL; uint32 primary_group_rid; size_t num_groups = 0; gid_t *unix_gids; size_t i, num_gids; uint32 acc_granted; BOOL ret; NTSTATUS result; BOOL success = False; /* * from the SID in the request: * we should send back the list of DOMAIN GROUPS * the user is a member of * * and only the DOMAIN GROUPS * no ALIASES !!! neither aliases of the domain * nor aliases of the builtin SID * * JFM, 12/2/2001 */ r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__)); /* find the policy handle. open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->pol, &sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_USER_GET_GROUPS, "_samr_query_usergroups"))) { return r_u->status; } if (!sid_check_is_in_our_domain(&sid)) return NT_STATUS_OBJECT_TYPE_MISMATCH; if ( !(sam_pass = samu_new( p->mem_ctx )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(sam_pass, &sid); unbecome_root(); if (!ret) { DEBUG(10, ("pdb_getsampwsid failed for %s\n", sid_string_static(&sid))); return NT_STATUS_NO_SUCH_USER; } sids = NULL; /* make both calls inside the root block */ become_root(); result = pdb_enum_group_memberships(p->mem_ctx, sam_pass, &sids, &unix_gids, &num_groups); if ( NT_STATUS_IS_OK(result) ) { success = sid_peek_check_rid(get_global_sam_sid(), pdb_get_group_sid(sam_pass), &primary_group_rid); } unbecome_root(); if (!NT_STATUS_IS_OK(result)) { DEBUG(10, ("pdb_enum_group_memberships failed for %s\n", sid_string_static(&sid))); return result; } if ( !success ) { DEBUG(5, ("Group sid %s for user %s not in our domain\n", sid_string_static(pdb_get_group_sid(sam_pass)), pdb_get_username(sam_pass))); TALLOC_FREE(sam_pass); return NT_STATUS_INTERNAL_DB_CORRUPTION; } gids = NULL; num_gids = 0; dom_gid.attr = (SE_GROUP_MANDATORY|SE_GROUP_ENABLED_BY_DEFAULT| SE_GROUP_ENABLED); dom_gid.g_rid = primary_group_rid; ADD_TO_ARRAY(p->mem_ctx, DOM_GID, dom_gid, &gids, &num_gids); for (i=0; imem_ctx, DOM_GID, dom_gid, &gids, &num_gids); } /* construct the response. lkclXXXX: gids are not copied! */ init_samr_r_query_usergroups(r_u, num_gids, gids, r_u->status); DEBUG(5,("_samr_query_usergroups: %d\n", __LINE__)); return r_u->status; } /******************************************************************* _samr_query_domain_info ********************************************************************/ NTSTATUS _samr_query_domain_info(pipes_struct *p, SAMR_Q_QUERY_DOMAIN_INFO *q_u, SAMR_R_QUERY_DOMAIN_INFO *r_u) { struct samr_info *info = NULL; SAM_UNK_CTR *ctr; uint32 min_pass_len,pass_hist,password_properties; time_t u_expire, u_min_age; NTTIME nt_expire, nt_min_age; time_t u_lock_duration, u_reset_time; NTTIME nt_lock_duration, nt_reset_time; uint32 lockout; time_t u_logout; NTTIME nt_logout; uint32 account_policy_temp; time_t seq_num; uint32 server_role; uint32 num_users=0, num_groups=0, num_aliases=0; if ((ctr = TALLOC_ZERO_P(p->mem_ctx, SAM_UNK_CTR)) == NULL) { return NT_STATUS_NO_MEMORY; } ZERO_STRUCTP(ctr); r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_query_domain_info: %d\n", __LINE__)); /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info)) { return NT_STATUS_INVALID_HANDLE; } switch (q_u->switch_value) { case 0x01: become_root(); /* AS ROOT !!! */ pdb_get_account_policy(AP_MIN_PASSWORD_LEN, &account_policy_temp); min_pass_len = account_policy_temp; pdb_get_account_policy(AP_PASSWORD_HISTORY, &account_policy_temp); pass_hist = account_policy_temp; pdb_get_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, &account_policy_temp); password_properties = account_policy_temp; pdb_get_account_policy(AP_MAX_PASSWORD_AGE, &account_policy_temp); u_expire = account_policy_temp; pdb_get_account_policy(AP_MIN_PASSWORD_AGE, &account_policy_temp); u_min_age = account_policy_temp; /* !AS ROOT */ unbecome_root(); unix_to_nt_time_abs(&nt_expire, u_expire); unix_to_nt_time_abs(&nt_min_age, u_min_age); init_unk_info1(&ctr->info.inf1, (uint16)min_pass_len, (uint16)pass_hist, password_properties, nt_expire, nt_min_age); break; case 0x02: become_root(); /* AS ROOT !!! */ num_users = count_sam_users(info->disp_info, ACB_NORMAL); num_groups = count_sam_groups(info->disp_info); num_aliases = count_sam_aliases(info->disp_info); pdb_get_account_policy(AP_TIME_TO_LOGOUT, &account_policy_temp); u_logout = account_policy_temp; unix_to_nt_time_abs(&nt_logout, u_logout); if (!pdb_get_seq_num(&seq_num)) seq_num = time(NULL); /* !AS ROOT */ unbecome_root(); server_role = ROLE_DOMAIN_PDC; if (lp_server_role() == ROLE_DOMAIN_BDC) server_role = ROLE_DOMAIN_BDC; init_unk_info2(&ctr->info.inf2, lp_serverstring(), lp_workgroup(), global_myname(), seq_num, num_users, num_groups, num_aliases, nt_logout, server_role); break; case 0x03: become_root(); /* AS ROOT !!! */ { uint32 ul; pdb_get_account_policy(AP_TIME_TO_LOGOUT, &ul); u_logout = (time_t)ul; } /* !AS ROOT */ unbecome_root(); unix_to_nt_time_abs(&nt_logout, u_logout); init_unk_info3(&ctr->info.inf3, nt_logout); break; case 0x04: init_unk_info4(&ctr->info.inf4, lp_serverstring()); break; case 0x05: init_unk_info5(&ctr->info.inf5, get_global_sam_name()); break; case 0x06: /* NT returns its own name when a PDC. win2k and later * only the name of the PDC if itself is a BDC (samba4 * idl) */ init_unk_info6(&ctr->info.inf6, global_myname()); break; case 0x07: server_role = ROLE_DOMAIN_PDC; if (lp_server_role() == ROLE_DOMAIN_BDC) server_role = ROLE_DOMAIN_BDC; init_unk_info7(&ctr->info.inf7, server_role); break; case 0x08: become_root(); /* AS ROOT !!! */ if (!pdb_get_seq_num(&seq_num)) { seq_num = time(NULL); } /* !AS ROOT */ unbecome_root(); init_unk_info8(&ctr->info.inf8, (uint32) seq_num); break; case 0x0c: become_root(); /* AS ROOT !!! */ pdb_get_account_policy(AP_LOCK_ACCOUNT_DURATION, &account_policy_temp); u_lock_duration = account_policy_temp; if (u_lock_duration != -1) { u_lock_duration *= 60; } pdb_get_account_policy(AP_RESET_COUNT_TIME, &account_policy_temp); u_reset_time = account_policy_temp * 60; pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &account_policy_temp); lockout = account_policy_temp; /* !AS ROOT */ unbecome_root(); unix_to_nt_time_abs(&nt_lock_duration, u_lock_duration); unix_to_nt_time_abs(&nt_reset_time, u_reset_time); init_unk_info12(&ctr->info.inf12, nt_lock_duration, nt_reset_time, (uint16)lockout); break; default: return NT_STATUS_INVALID_INFO_CLASS; } init_samr_r_query_domain_info(r_u, q_u->switch_value, ctr, NT_STATUS_OK); DEBUG(5,("_samr_query_domain_info: %d\n", __LINE__)); return r_u->status; } /* W2k3 seems to use the same check for all 3 objects that can be created via * SAMR, if you try to create for example "Dialup" as an alias it says * "NT_STATUS_USER_EXISTS". This is racy, but we can't really lock the user * database. */ static NTSTATUS can_create(TALLOC_CTX *mem_ctx, const char *new_name) { enum lsa_SidType type; BOOL result; DEBUG(10, ("Checking whether [%s] can be created\n", new_name)); become_root(); /* Lookup in our local databases (only LOOKUP_NAME_ISOLATED set) * whether the name already exists */ result = lookup_name(mem_ctx, new_name, LOOKUP_NAME_ISOLATED, NULL, NULL, NULL, &type); unbecome_root(); if (!result) { DEBUG(10, ("%s does not exist, can create it\n", new_name)); return NT_STATUS_OK; } DEBUG(5, ("trying to create %s, exists as %s\n", new_name, sid_type_lookup(type))); if (type == SID_NAME_DOM_GRP) { return NT_STATUS_GROUP_EXISTS; } if (type == SID_NAME_ALIAS) { return NT_STATUS_ALIAS_EXISTS; } /* Yes, the default is NT_STATUS_USER_EXISTS */ return NT_STATUS_USER_EXISTS; } /******************************************************************* _samr_create_user Create an account, can be either a normal user or a machine. This funcion will need to be updated for bdc/domain trusts. ********************************************************************/ NTSTATUS _samr_create_user(pipes_struct *p, SAMR_Q_CREATE_USER *q_u, SAMR_R_CREATE_USER *r_u) { char *account; DOM_SID sid; POLICY_HND dom_pol = q_u->domain_pol; uint16 acb_info = q_u->acb_info; POLICY_HND *user_pol = &r_u->user_pol; struct samr_info *info = NULL; NTSTATUS nt_status; uint32 acc_granted; SEC_DESC *psd; size_t sd_size; /* check this, when giving away 'add computer to domain' privs */ uint32 des_access = GENERIC_RIGHTS_USER_ALL_ACCESS; BOOL can_add_account = False; SE_PRIV se_rights; DISP_INFO *disp_info = NULL; /* Get the domain SID stored in the domain policy */ if (!get_lsa_policy_samr_sid(p, &dom_pol, &sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; nt_status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_USER, "_samr_create_user"); if (!NT_STATUS_IS_OK(nt_status)) { return nt_status; } if (!(acb_info == ACB_NORMAL || acb_info == ACB_DOMTRUST || acb_info == ACB_WSTRUST || acb_info == ACB_SVRTRUST)) { /* Match Win2k, and return NT_STATUS_INVALID_PARAMETER if this parameter is not an account type */ return NT_STATUS_INVALID_PARAMETER; } account = rpcstr_pull_unistr2_talloc(p->mem_ctx, &q_u->uni_name); if (account == NULL) { return NT_STATUS_NO_MEMORY; } nt_status = can_create(p->mem_ctx, account); if (!NT_STATUS_IS_OK(nt_status)) { return nt_status; } /* determine which user right we need to check based on the acb_info */ if ( acb_info & ACB_WSTRUST ) { se_priv_copy( &se_rights, &se_machine_account ); can_add_account = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); } /* usrmgr.exe (and net rpc trustdom grant) creates a normal user account for domain trusts and changes the ACB flags later */ else if ( acb_info & ACB_NORMAL && (account[strlen(account)-1] != '$') ) { se_priv_copy( &se_rights, &se_add_users ); can_add_account = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); } else /* implicit assumption of a BDC or domain trust account here * (we already check the flags earlier) */ { if ( lp_enable_privileges() ) { /* only Domain Admins can add a BDC or domain trust */ se_priv_copy( &se_rights, &se_priv_none ); can_add_account = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ); } } DEBUG(5, ("_samr_create_user: %s can add this account : %s\n", uidtoname(p->pipe_user.ut.uid), can_add_account ? "True":"False" )); /********** BEGIN Admin BLOCK **********/ if ( can_add_account ) become_root(); nt_status = pdb_create_user(p->mem_ctx, account, acb_info, &r_u->user_rid); if ( can_add_account ) unbecome_root(); /********** END Admin BLOCK **********/ /* now check for failure */ if ( !NT_STATUS_IS_OK(nt_status) ) return nt_status; /* Get the user's SID */ sid_compose(&sid, get_global_sam_sid(), r_u->user_rid); make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &usr_generic_mapping, &sid, SAMR_USR_RIGHTS_WRITE_PW); se_map_generic(&des_access, &usr_generic_mapping); nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, &se_rights, GENERIC_RIGHTS_USER_WRITE, des_access, &acc_granted, "_samr_create_user"); if ( !NT_STATUS_IS_OK(nt_status) ) { return nt_status; } /* associate the user's SID with the new handle. */ if ((info = get_samr_info_by_sid(&sid)) == NULL) { return NT_STATUS_NO_MEMORY; } ZERO_STRUCTP(info); info->sid = sid; info->acc_granted = acc_granted; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, user_pol, free_samr_info, (void *)info)) { return NT_STATUS_OBJECT_NAME_NOT_FOUND; } /* After a "set" ensure we have no cached display info. */ force_flush_samr_cache(info->disp_info); r_u->access_granted = acc_granted; return NT_STATUS_OK; } /******************************************************************* samr_reply_connect_anon ********************************************************************/ NTSTATUS _samr_connect_anon(pipes_struct *p, SAMR_Q_CONNECT_ANON *q_u, SAMR_R_CONNECT_ANON *r_u) { struct samr_info *info = NULL; uint32 des_access = q_u->access_mask; /* Access check */ if (!pipe_access_check(p)) { DEBUG(3, ("access denied to samr_connect_anon\n")); r_u->status = NT_STATUS_ACCESS_DENIED; return r_u->status; } /* set up the SAMR connect_anon response */ r_u->status = NT_STATUS_OK; /* associate the user's SID with the new handle. */ if ((info = get_samr_info_by_sid(NULL)) == NULL) return NT_STATUS_NO_MEMORY; /* don't give away the farm but this is probably ok. The SA_RIGHT_SAM_ENUM_DOMAINS was observed from a win98 client trying to enumerate users (when configured user level access control on shares) --jerry */ if (des_access == MAXIMUM_ALLOWED_ACCESS) { /* Map to max possible knowing we're filtered below. */ des_access = GENERIC_ALL_ACCESS; } se_map_generic( &des_access, &sam_generic_mapping ); info->acc_granted = des_access & (SA_RIGHT_SAM_ENUM_DOMAINS|SA_RIGHT_SAM_OPEN_DOMAIN); info->status = q_u->unknown_0; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; return r_u->status; } /******************************************************************* samr_reply_connect ********************************************************************/ NTSTATUS _samr_connect(pipes_struct *p, SAMR_Q_CONNECT *q_u, SAMR_R_CONNECT *r_u) { struct samr_info *info = NULL; SEC_DESC *psd = NULL; uint32 acc_granted; uint32 des_access = q_u->access_mask; NTSTATUS nt_status; size_t sd_size; DEBUG(5,("_samr_connect: %d\n", __LINE__)); /* Access check */ if (!pipe_access_check(p)) { DEBUG(3, ("access denied to samr_connect\n")); r_u->status = NT_STATUS_ACCESS_DENIED; return r_u->status; } make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0); se_map_generic(&des_access, &sam_generic_mapping); nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, NULL, 0, des_access, &acc_granted, "_samr_connect"); if ( !NT_STATUS_IS_OK(nt_status) ) return nt_status; r_u->status = NT_STATUS_OK; /* associate the user's SID and access granted with the new handle. */ if ((info = get_samr_info_by_sid(NULL)) == NULL) return NT_STATUS_NO_MEMORY; info->acc_granted = acc_granted; info->status = q_u->access_mask; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; DEBUG(5,("_samr_connect: %d\n", __LINE__)); return r_u->status; } /******************************************************************* samr_connect4 ********************************************************************/ NTSTATUS _samr_connect4(pipes_struct *p, SAMR_Q_CONNECT4 *q_u, SAMR_R_CONNECT4 *r_u) { struct samr_info *info = NULL; SEC_DESC *psd = NULL; uint32 acc_granted; uint32 des_access = q_u->access_mask; NTSTATUS nt_status; size_t sd_size; DEBUG(5,("_samr_connect4: %d\n", __LINE__)); /* Access check */ if (!pipe_access_check(p)) { DEBUG(3, ("access denied to samr_connect4\n")); r_u->status = NT_STATUS_ACCESS_DENIED; return r_u->status; } make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0); se_map_generic(&des_access, &sam_generic_mapping); nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, NULL, 0, des_access, &acc_granted, "_samr_connect4"); if ( !NT_STATUS_IS_OK(nt_status) ) return nt_status; r_u->status = NT_STATUS_OK; /* associate the user's SID and access granted with the new handle. */ if ((info = get_samr_info_by_sid(NULL)) == NULL) return NT_STATUS_NO_MEMORY; info->acc_granted = acc_granted; info->status = q_u->access_mask; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &r_u->connect_pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; DEBUG(5,("_samr_connect: %d\n", __LINE__)); return r_u->status; } /******************************************************************* samr_connect5 ********************************************************************/ NTSTATUS _samr_connect5(pipes_struct *p, SAMR_Q_CONNECT5 *q_u, SAMR_R_CONNECT5 *r_u) { struct samr_info *info = NULL; SEC_DESC *psd = NULL; uint32 acc_granted; uint32 des_access = q_u->access_mask; NTSTATUS nt_status; POLICY_HND pol; size_t sd_size; DEBUG(5,("_samr_connect5: %d\n", __LINE__)); ZERO_STRUCTP(r_u); /* Access check */ if (!pipe_access_check(p)) { DEBUG(3, ("access denied to samr_connect5\n")); r_u->status = NT_STATUS_ACCESS_DENIED; return r_u->status; } make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &sam_generic_mapping, NULL, 0); se_map_generic(&des_access, &sam_generic_mapping); nt_status = access_check_samr_object(psd, p->pipe_user.nt_user_token, NULL, 0, des_access, &acc_granted, "_samr_connect5"); if ( !NT_STATUS_IS_OK(nt_status) ) return nt_status; /* associate the user's SID and access granted with the new handle. */ if ((info = get_samr_info_by_sid(NULL)) == NULL) return NT_STATUS_NO_MEMORY; info->acc_granted = acc_granted; info->status = q_u->access_mask; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; DEBUG(5,("_samr_connect: %d\n", __LINE__)); init_samr_r_connect5(r_u, &pol, NT_STATUS_OK); return r_u->status; } /********************************************************************** api_samr_lookup_domain **********************************************************************/ NTSTATUS _samr_lookup_domain(pipes_struct *p, SAMR_Q_LOOKUP_DOMAIN *q_u, SAMR_R_LOOKUP_DOMAIN *r_u) { struct samr_info *info; fstring domain_name; DOM_SID sid; r_u->status = NT_STATUS_OK; if (!find_policy_by_hnd(p, &q_u->connect_pol, (void**)(void *)&info)) return NT_STATUS_INVALID_HANDLE; /* win9x user manager likes to use SA_RIGHT_SAM_ENUM_DOMAINS here. Reverted that change so we will work with RAS servers again */ if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_SAM_OPEN_DOMAIN, "_samr_lookup_domain"))) { return r_u->status; } rpcstr_pull(domain_name, q_u->uni_domain.buffer, sizeof(domain_name), q_u->uni_domain.uni_str_len*2, 0); ZERO_STRUCT(sid); if (strequal(domain_name, builtin_domain_name())) { sid_copy(&sid, &global_sid_Builtin); } else { if (!secrets_fetch_domain_sid(domain_name, &sid)) { r_u->status = NT_STATUS_NO_SUCH_DOMAIN; } } DEBUG(2,("Returning domain sid for domain %s -> %s\n", domain_name, sid_string_static(&sid))); init_samr_r_lookup_domain(r_u, &sid, r_u->status); return r_u->status; } /****************************************************************** makes a SAMR_R_ENUM_DOMAINS structure. ********************************************************************/ static BOOL make_enum_domains(TALLOC_CTX *ctx, SAM_ENTRY **pp_sam, UNISTR2 **pp_uni_name, uint32 num_sam_entries, fstring doms[]) { uint32 i; SAM_ENTRY *sam; UNISTR2 *uni_name; DEBUG(5, ("make_enum_domains\n")); *pp_sam = NULL; *pp_uni_name = NULL; if (num_sam_entries == 0) return True; sam = TALLOC_ZERO_ARRAY(ctx, SAM_ENTRY, num_sam_entries); uni_name = TALLOC_ZERO_ARRAY(ctx, UNISTR2, num_sam_entries); if (sam == NULL || uni_name == NULL) return False; for (i = 0; i < num_sam_entries; i++) { init_unistr2(&uni_name[i], doms[i], UNI_FLAGS_NONE); init_sam_entry(&sam[i], &uni_name[i], 0); } *pp_sam = sam; *pp_uni_name = uni_name; return True; } /********************************************************************** api_samr_enum_domains **********************************************************************/ NTSTATUS _samr_enum_domains(pipes_struct *p, SAMR_Q_ENUM_DOMAINS *q_u, SAMR_R_ENUM_DOMAINS *r_u) { struct samr_info *info; uint32 num_entries = 2; fstring dom[2]; const char *name; r_u->status = NT_STATUS_OK; if (!find_policy_by_hnd(p, &q_u->pol, (void**)(void *)&info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted, SA_RIGHT_SAM_ENUM_DOMAINS, "_samr_enum_domains"))) { return r_u->status; } name = get_global_sam_name(); fstrcpy(dom[0],name); strupper_m(dom[0]); fstrcpy(dom[1],"Builtin"); if (!make_enum_domains(p->mem_ctx, &r_u->sam, &r_u->uni_dom_name, num_entries, dom)) return NT_STATUS_NO_MEMORY; init_samr_r_enum_domains(r_u, q_u->start_idx + num_entries, num_entries); return r_u->status; } /******************************************************************* api_samr_open_alias ********************************************************************/ NTSTATUS _samr_open_alias(pipes_struct *p, SAMR_Q_OPEN_ALIAS *q_u, SAMR_R_OPEN_ALIAS *r_u) { DOM_SID sid; POLICY_HND domain_pol = q_u->dom_pol; uint32 alias_rid = q_u->rid_alias; POLICY_HND *alias_pol = &r_u->pol; struct samr_info *info = NULL; SEC_DESC *psd = NULL; uint32 acc_granted; uint32 des_access = q_u->access_mask; size_t sd_size; NTSTATUS status; SE_PRIV se_rights; r_u->status = NT_STATUS_OK; /* find the domain policy and get the SID / access bits stored in the domain policy */ if ( !get_lsa_policy_samr_sid(p, &domain_pol, &sid, &acc_granted, NULL) ) return NT_STATUS_INVALID_HANDLE; status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_alias"); if ( !NT_STATUS_IS_OK(status) ) return status; /* append the alias' RID to it */ if (!sid_append_rid(&sid, alias_rid)) return NT_STATUS_NO_SUCH_ALIAS; /*check if access can be granted as requested by client. */ make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &ali_generic_mapping, NULL, 0); se_map_generic(&des_access,&ali_generic_mapping); se_priv_copy( &se_rights, &se_add_users ); status = access_check_samr_object(psd, p->pipe_user.nt_user_token, &se_rights, GENERIC_RIGHTS_ALIAS_WRITE, des_access, &acc_granted, "_samr_open_alias"); if ( !NT_STATUS_IS_OK(status) ) return status; { /* Check we actually have the requested alias */ enum lsa_SidType type; BOOL result; gid_t gid; become_root(); result = lookup_sid(NULL, &sid, NULL, NULL, &type); unbecome_root(); if (!result || (type != SID_NAME_ALIAS)) { return NT_STATUS_NO_SUCH_ALIAS; } /* make sure there is a mapping */ if ( !sid_to_gid( &sid, &gid ) ) { return NT_STATUS_NO_SUCH_ALIAS; } } /* associate the alias SID with the new handle. */ if ((info = get_samr_info_by_sid(&sid)) == NULL) return NT_STATUS_NO_MEMORY; info->acc_granted = acc_granted; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, alias_pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; return r_u->status; } /******************************************************************* set_user_info_7 ********************************************************************/ static NTSTATUS set_user_info_7(TALLOC_CTX *mem_ctx, const SAM_USER_INFO_7 *id7, struct samu *pwd) { fstring new_name; NTSTATUS rc; if (id7 == NULL) { DEBUG(5, ("set_user_info_7: NULL id7\n")); TALLOC_FREE(pwd); return NT_STATUS_ACCESS_DENIED; } if(!rpcstr_pull(new_name, id7->uni_name.buffer, sizeof(new_name), id7->uni_name.uni_str_len*2, 0)) { DEBUG(5, ("set_user_info_7: failed to get new username\n")); TALLOC_FREE(pwd); return NT_STATUS_ACCESS_DENIED; } /* check to see if the new username already exists. Note: we can't reliably lock all backends, so there is potentially the possibility that a user can be created in between this check and the rename. The rename should fail, but may not get the exact same failure status code. I think this is small enough of a window for this type of operation and the results are simply that the rename fails with a slightly different status code (like UNSUCCESSFUL instead of ALREADY_EXISTS). */ rc = can_create(mem_ctx, new_name); if (!NT_STATUS_IS_OK(rc)) { return rc; } rc = pdb_rename_sam_account(pwd, new_name); TALLOC_FREE(pwd); return rc; } /******************************************************************* set_user_info_16 ********************************************************************/ static BOOL set_user_info_16(const SAM_USER_INFO_16 *id16, struct samu *pwd) { if (id16 == NULL) { DEBUG(5, ("set_user_info_16: NULL id16\n")); TALLOC_FREE(pwd); return False; } /* FIX ME: check if the value is really changed --metze */ if (!pdb_set_acct_ctrl(pwd, id16->acb_info, PDB_CHANGED)) { TALLOC_FREE(pwd); return False; } if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) { TALLOC_FREE(pwd); return False; } TALLOC_FREE(pwd); return True; } /******************************************************************* set_user_info_18 ********************************************************************/ static BOOL set_user_info_18(SAM_USER_INFO_18 *id18, struct samu *pwd) { if (id18 == NULL) { DEBUG(2, ("set_user_info_18: id18 is NULL\n")); TALLOC_FREE(pwd); return False; } if (!pdb_set_lanman_passwd (pwd, id18->lm_pwd, PDB_CHANGED)) { TALLOC_FREE(pwd); return False; } if (!pdb_set_nt_passwd (pwd, id18->nt_pwd, PDB_CHANGED)) { TALLOC_FREE(pwd); return False; } if (!pdb_set_pass_last_set_time (pwd, time(NULL), PDB_CHANGED)) { TALLOC_FREE(pwd); return False; } if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) { TALLOC_FREE(pwd); return False; } TALLOC_FREE(pwd); return True; } /******************************************************************* set_user_info_20 ********************************************************************/ static BOOL set_user_info_20(SAM_USER_INFO_20 *id20, struct samu *pwd) { if (id20 == NULL) { DEBUG(5, ("set_user_info_20: NULL id20\n")); return False; } copy_id20_to_sam_passwd(pwd, id20); /* write the change out */ if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) { TALLOC_FREE(pwd); return False; } TALLOC_FREE(pwd); return True; } /******************************************************************* set_user_info_21 ********************************************************************/ static NTSTATUS set_user_info_21(TALLOC_CTX *mem_ctx, SAM_USER_INFO_21 *id21, struct samu *pwd) { fstring new_name; NTSTATUS status; if (id21 == NULL) { DEBUG(5, ("set_user_info_21: NULL id21\n")); return NT_STATUS_INVALID_PARAMETER; } /* we need to separately check for an account rename first */ if (rpcstr_pull(new_name, id21->uni_user_name.buffer, sizeof(new_name), id21->uni_user_name.uni_str_len*2, 0) && (!strequal(new_name, pdb_get_username(pwd)))) { /* check to see if the new username already exists. Note: we can't reliably lock all backends, so there is potentially the possibility that a user can be created in between this check and the rename. The rename should fail, but may not get the exact same failure status code. I think this is small enough of a window for this type of operation and the results are simply that the rename fails with a slightly different status code (like UNSUCCESSFUL instead of ALREADY_EXISTS). */ status = can_create(mem_ctx, new_name); if (!NT_STATUS_IS_OK(status)) { return status; } status = pdb_rename_sam_account(pwd, new_name); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("set_user_info_21: failed to rename account: %s\n", nt_errstr(status))); TALLOC_FREE(pwd); return status; } /* set the new username so that later functions can work on the new account */ pdb_set_username(pwd, new_name, PDB_SET); } copy_id21_to_sam_passwd(pwd, id21); /* * The funny part about the previous two calls is * that pwd still has the password hashes from the * passdb entry. These have not been updated from * id21. I don't know if they need to be set. --jerry */ if ( IS_SAM_CHANGED(pwd, PDB_GROUPSID) ) { status = pdb_set_unix_primary_group(mem_ctx, pwd); if ( !NT_STATUS_IS_OK(status) ) { return status; } } /* Don't worry about writing out the user account since the primary group SID is generated solely from the user's Unix primary group. */ /* write the change out */ if(!NT_STATUS_IS_OK(status = pdb_update_sam_account(pwd))) { TALLOC_FREE(pwd); return status; } TALLOC_FREE(pwd); return NT_STATUS_OK; } /******************************************************************* set_user_info_23 ********************************************************************/ static NTSTATUS set_user_info_23(TALLOC_CTX *mem_ctx, SAM_USER_INFO_23 *id23, struct samu *pwd) { pstring plaintext_buf; uint32 len; uint16 acct_ctrl; NTSTATUS status; if (id23 == NULL) { DEBUG(5, ("set_user_info_23: NULL id23\n")); return NT_STATUS_INVALID_PARAMETER; } DEBUG(5, ("Attempting administrator password change (level 23) for user %s\n", pdb_get_username(pwd))); acct_ctrl = pdb_get_acct_ctrl(pwd); if (!decode_pw_buffer(id23->pass, plaintext_buf, 256, &len, STR_UNICODE)) { TALLOC_FREE(pwd); return NT_STATUS_INVALID_PARAMETER; } if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) { TALLOC_FREE(pwd); return NT_STATUS_ACCESS_DENIED; } copy_id23_to_sam_passwd(pwd, id23); /* if it's a trust account, don't update /etc/passwd */ if ( ( (acct_ctrl & ACB_DOMTRUST) == ACB_DOMTRUST ) || ( (acct_ctrl & ACB_WSTRUST) == ACB_WSTRUST) || ( (acct_ctrl & ACB_SVRTRUST) == ACB_SVRTRUST) ) { DEBUG(5, ("Changing trust account. Not updating /etc/passwd\n")); } else { /* update the UNIX password */ if (lp_unix_password_sync() ) { struct passwd *passwd; if (pdb_get_username(pwd) == NULL) { DEBUG(1, ("chgpasswd: User without name???\n")); TALLOC_FREE(pwd); return NT_STATUS_ACCESS_DENIED; } if ((passwd = Get_Pwnam(pdb_get_username(pwd))) == NULL) { DEBUG(1, ("chgpasswd: Username does not exist in system !?!\n")); } if(!chgpasswd(pdb_get_username(pwd), passwd, "", plaintext_buf, True)) { TALLOC_FREE(pwd); return NT_STATUS_ACCESS_DENIED; } } } ZERO_STRUCT(plaintext_buf); if (IS_SAM_CHANGED(pwd, PDB_GROUPSID) && (!NT_STATUS_IS_OK(status = pdb_set_unix_primary_group(mem_ctx, pwd)))) { TALLOC_FREE(pwd); return status; } if(!NT_STATUS_IS_OK(status = pdb_update_sam_account(pwd))) { TALLOC_FREE(pwd); return status; } TALLOC_FREE(pwd); return NT_STATUS_OK; } /******************************************************************* set_user_info_pw ********************************************************************/ static BOOL set_user_info_pw(uint8 *pass, struct samu *pwd) { uint32 len; pstring plaintext_buf; uint32 acct_ctrl; DEBUG(5, ("Attempting administrator password change for user %s\n", pdb_get_username(pwd))); acct_ctrl = pdb_get_acct_ctrl(pwd); ZERO_STRUCT(plaintext_buf); if (!decode_pw_buffer(pass, plaintext_buf, 256, &len, STR_UNICODE)) { TALLOC_FREE(pwd); return False; } if (!pdb_set_plaintext_passwd (pwd, plaintext_buf)) { TALLOC_FREE(pwd); return False; } /* if it's a trust account, don't update /etc/passwd */ if ( ( (acct_ctrl & ACB_DOMTRUST) == ACB_DOMTRUST ) || ( (acct_ctrl & ACB_WSTRUST) == ACB_WSTRUST) || ( (acct_ctrl & ACB_SVRTRUST) == ACB_SVRTRUST) ) { DEBUG(5, ("Changing trust account or non-unix-user password, not updating /etc/passwd\n")); } else { /* update the UNIX password */ if (lp_unix_password_sync()) { struct passwd *passwd; if (pdb_get_username(pwd) == NULL) { DEBUG(1, ("chgpasswd: User without name???\n")); TALLOC_FREE(pwd); return False; } if ((passwd = Get_Pwnam(pdb_get_username(pwd))) == NULL) { DEBUG(1, ("chgpasswd: Username does not exist in system !?!\n")); } if(!chgpasswd(pdb_get_username(pwd), passwd, "", plaintext_buf, True)) { TALLOC_FREE(pwd); return False; } } } ZERO_STRUCT(plaintext_buf); DEBUG(5,("set_user_info_pw: pdb_update_pwd()\n")); /* update the SAMBA password */ if(!NT_STATUS_IS_OK(pdb_update_sam_account(pwd))) { TALLOC_FREE(pwd); return False; } TALLOC_FREE(pwd); return True; } /******************************************************************* set_user_info_25 ********************************************************************/ static NTSTATUS set_user_info_25(TALLOC_CTX *mem_ctx, SAM_USER_INFO_25 *id25, struct samu *pwd) { NTSTATUS status; if (id25 == NULL) { DEBUG(5, ("set_user_info_25: NULL id25\n")); return NT_STATUS_INVALID_PARAMETER; } copy_id25_to_sam_passwd(pwd, id25); /* write the change out */ if(!NT_STATUS_IS_OK(status = pdb_update_sam_account(pwd))) { TALLOC_FREE(pwd); return status; } /* * We need to "pdb_update_sam_account" before the unix primary group * is set, because the idealx scripts would also change the * sambaPrimaryGroupSid using the ldap replace method. pdb_ldap uses * the delete explicit / add explicit, which would then fail to find * the previous primaryGroupSid value. */ if ( IS_SAM_CHANGED(pwd, PDB_GROUPSID) ) { status = pdb_set_unix_primary_group(mem_ctx, pwd); if ( !NT_STATUS_IS_OK(status) ) { return status; } } /* WARNING: No TALLOC_FREE(pwd), we are about to set the password * hereafter! */ return NT_STATUS_OK; } /******************************************************************* samr_reply_set_userinfo ********************************************************************/ NTSTATUS _samr_set_userinfo(pipes_struct *p, SAMR_Q_SET_USERINFO *q_u, SAMR_R_SET_USERINFO *r_u) { struct samu *pwd = NULL; DOM_SID sid; POLICY_HND *pol = &q_u->pol; uint16 switch_value = q_u->switch_value; SAM_USERINFO_CTR *ctr = q_u->ctr; uint32 acc_granted; uint32 acc_required; BOOL ret; BOOL has_enough_rights = False; uint32 acb_info; DISP_INFO *disp_info = NULL; DEBUG(5, ("_samr_set_userinfo: %d\n", __LINE__)); r_u->status = NT_STATUS_OK; /* find the policy handle. open a policy on it. */ if (!get_lsa_policy_samr_sid(p, pol, &sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; /* This is tricky. A WinXP domain join sets (SA_RIGHT_USER_SET_PASSWORD|SA_RIGHT_USER_SET_ATTRIBUTES|SA_RIGHT_USER_ACCT_FLAGS_EXPIRY) The MMC lusrmgr plugin includes these perms and more in the SamrOpenUser(). But the standard Win32 API calls just ask for SA_RIGHT_USER_SET_PASSWORD in the SamrOpenUser(). This should be enough for levels 18, 24, 25,& 26. Info level 23 can set more so we'll use the set from the WinXP join as the basis. */ switch (switch_value) { case 18: case 24: case 25: case 26: acc_required = SA_RIGHT_USER_SET_PASSWORD; break; default: acc_required = SA_RIGHT_USER_SET_PASSWORD | SA_RIGHT_USER_SET_ATTRIBUTES | SA_RIGHT_USER_ACCT_FLAGS_EXPIRY; break; } if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, acc_required, "_samr_set_userinfo"))) { return r_u->status; } DEBUG(5, ("_samr_set_userinfo: sid:%s, level:%d\n", sid_string_static(&sid), switch_value)); if (ctr == NULL) { DEBUG(5, ("_samr_set_userinfo: NULL info level\n")); return NT_STATUS_INVALID_INFO_CLASS; } if ( !(pwd = samu_new( NULL )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(pwd, &sid); unbecome_root(); if ( !ret ) { TALLOC_FREE(pwd); return NT_STATUS_NO_SUCH_USER; } /* deal with machine password changes differently from userinfo changes */ /* check to see if we have the sufficient rights */ acb_info = pdb_get_acct_ctrl(pwd); if ( acb_info & ACB_WSTRUST ) has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_machine_account); else if ( acb_info & ACB_NORMAL ) has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users ); else if ( acb_info & (ACB_SVRTRUST|ACB_DOMTRUST) ) { if ( lp_enable_privileges() ) has_enough_rights = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ); } DEBUG(5, ("_samr_set_userinfo: %s does%s possess sufficient rights\n", uidtoname(p->pipe_user.ut.uid), has_enough_rights ? "" : " not")); /* ================ BEGIN SeMachineAccountPrivilege BLOCK ================ */ if ( has_enough_rights ) become_root(); /* ok! user info levels (lots: see MSDEV help), off we go... */ switch (switch_value) { case 18: if (!set_user_info_18(ctr->info.id18, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; case 24: if (!p->session_key.length) { r_u->status = NT_STATUS_NO_USER_SESSION_KEY; } SamOEMhashBlob(ctr->info.id24->pass, 516, &p->session_key); dump_data(100, ctr->info.id24->pass, 516); if (!set_user_info_pw(ctr->info.id24->pass, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; case 25: if (!p->session_key.length) { r_u->status = NT_STATUS_NO_USER_SESSION_KEY; } encode_or_decode_arc4_passwd_buffer(ctr->info.id25->pass, &p->session_key); dump_data(100, ctr->info.id25->pass, 532); r_u->status = set_user_info_25(p->mem_ctx, ctr->info.id25, pwd); if (!NT_STATUS_IS_OK(r_u->status)) { goto done; } if (!set_user_info_pw(ctr->info.id25->pass, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; case 26: if (!p->session_key.length) { r_u->status = NT_STATUS_NO_USER_SESSION_KEY; } encode_or_decode_arc4_passwd_buffer(ctr->info.id26->pass, &p->session_key); dump_data(100, ctr->info.id26->pass, 516); if (!set_user_info_pw(ctr->info.id26->pass, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; case 23: if (!p->session_key.length) { r_u->status = NT_STATUS_NO_USER_SESSION_KEY; } SamOEMhashBlob(ctr->info.id23->pass, 516, &p->session_key); dump_data(100, ctr->info.id23->pass, 516); r_u->status = set_user_info_23(p->mem_ctx, ctr->info.id23, pwd); break; default: r_u->status = NT_STATUS_INVALID_INFO_CLASS; } done: if ( has_enough_rights ) unbecome_root(); /* ================ END SeMachineAccountPrivilege BLOCK ================ */ if (NT_STATUS_IS_OK(r_u->status)) { force_flush_samr_cache(disp_info); } return r_u->status; } /******************************************************************* samr_reply_set_userinfo2 ********************************************************************/ NTSTATUS _samr_set_userinfo2(pipes_struct *p, SAMR_Q_SET_USERINFO2 *q_u, SAMR_R_SET_USERINFO2 *r_u) { struct samu *pwd = NULL; DOM_SID sid; SAM_USERINFO_CTR *ctr = q_u->ctr; POLICY_HND *pol = &q_u->pol; uint16 switch_value = q_u->switch_value; uint32 acc_granted; uint32 acc_required; BOOL ret; BOOL has_enough_rights = False; uint32 acb_info; DISP_INFO *disp_info = NULL; DEBUG(5, ("samr_reply_set_userinfo2: %d\n", __LINE__)); r_u->status = NT_STATUS_OK; /* find the policy handle. open a policy on it. */ if (!get_lsa_policy_samr_sid(p, pol, &sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; #if 0 /* this really should be applied on a per info level basis --jerry */ /* observed when joining XP client to Samba domain */ acc_required = SA_RIGHT_USER_SET_PASSWORD | SA_RIGHT_USER_SET_ATTRIBUTES | SA_RIGHT_USER_ACCT_FLAGS_EXPIRY; #else acc_required = SA_RIGHT_USER_SET_ATTRIBUTES; #endif if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, acc_required, "_samr_set_userinfo2"))) { return r_u->status; } DEBUG(5, ("samr_reply_set_userinfo2: sid:%s\n", sid_string_static(&sid))); if (ctr == NULL) { DEBUG(5, ("samr_reply_set_userinfo2: NULL info level\n")); return NT_STATUS_INVALID_INFO_CLASS; } switch_value=ctr->switch_value; if ( !(pwd = samu_new( NULL )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(pwd, &sid); unbecome_root(); if ( !ret ) { TALLOC_FREE(pwd); return NT_STATUS_NO_SUCH_USER; } acb_info = pdb_get_acct_ctrl(pwd); if ( acb_info & ACB_WSTRUST ) has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_machine_account); else if ( acb_info & ACB_NORMAL ) has_enough_rights = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users ); else if ( acb_info & (ACB_SVRTRUST|ACB_DOMTRUST) ) { if ( lp_enable_privileges() ) has_enough_rights = nt_token_check_domain_rid( p->pipe_user.nt_user_token, DOMAIN_GROUP_RID_ADMINS ); } DEBUG(5, ("_samr_set_userinfo2: %s does%s possess sufficient rights\n", uidtoname(p->pipe_user.ut.uid), has_enough_rights ? "" : " not")); /* ================ BEGIN SeMachineAccountPrivilege BLOCK ================ */ if ( has_enough_rights ) become_root(); /* ok! user info levels (lots: see MSDEV help), off we go... */ switch (switch_value) { case 7: r_u->status = set_user_info_7(p->mem_ctx, ctr->info.id7, pwd); break; case 16: if (!set_user_info_16(ctr->info.id16, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; case 18: /* Used by AS/U JRA. */ if (!set_user_info_18(ctr->info.id18, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; case 20: if (!set_user_info_20(ctr->info.id20, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; case 21: r_u->status = set_user_info_21(p->mem_ctx, ctr->info.id21, pwd); break; case 23: if (!p->session_key.length) { r_u->status = NT_STATUS_NO_USER_SESSION_KEY; } SamOEMhashBlob(ctr->info.id23->pass, 516, &p->session_key); dump_data(100, ctr->info.id23->pass, 516); r_u->status = set_user_info_23(p->mem_ctx, ctr->info.id23, pwd); break; case 26: if (!p->session_key.length) { r_u->status = NT_STATUS_NO_USER_SESSION_KEY; } encode_or_decode_arc4_passwd_buffer(ctr->info.id26->pass, &p->session_key); dump_data(100, ctr->info.id26->pass, 516); if (!set_user_info_pw(ctr->info.id26->pass, pwd)) r_u->status = NT_STATUS_ACCESS_DENIED; break; default: r_u->status = NT_STATUS_INVALID_INFO_CLASS; } if ( has_enough_rights ) unbecome_root(); /* ================ END SeMachineAccountPrivilege BLOCK ================ */ if (NT_STATUS_IS_OK(r_u->status)) { force_flush_samr_cache(disp_info); } return r_u->status; } /********************************************************************* _samr_query_aliasmem *********************************************************************/ NTSTATUS _samr_query_useraliases(pipes_struct *p, SAMR_Q_QUERY_USERALIASES *q_u, SAMR_R_QUERY_USERALIASES *r_u) { size_t num_alias_rids; uint32 *alias_rids; struct samr_info *info = NULL; size_t i; NTSTATUS ntstatus1; NTSTATUS ntstatus2; DOM_SID *members; r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_query_useraliases: %d\n", __LINE__)); /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info)) return NT_STATUS_INVALID_HANDLE; ntstatus1 = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_LOOKUP_ALIAS_BY_MEM, "_samr_query_useraliases"); ntstatus2 = access_check_samr_function(info->acc_granted, SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_query_useraliases"); if (!NT_STATUS_IS_OK(ntstatus1) || !NT_STATUS_IS_OK(ntstatus2)) { if (!(NT_STATUS_EQUAL(ntstatus1,NT_STATUS_ACCESS_DENIED) && NT_STATUS_IS_OK(ntstatus2)) && !(NT_STATUS_EQUAL(ntstatus1,NT_STATUS_ACCESS_DENIED) && NT_STATUS_IS_OK(ntstatus1))) { return (NT_STATUS_IS_OK(ntstatus1)) ? ntstatus2 : ntstatus1; } } if (!sid_check_is_domain(&info->sid) && !sid_check_is_builtin(&info->sid)) return NT_STATUS_OBJECT_TYPE_MISMATCH; if (q_u->num_sids1) { members = TALLOC_ARRAY(p->mem_ctx, DOM_SID, q_u->num_sids1); if (members == NULL) return NT_STATUS_NO_MEMORY; } else { members = NULL; } for (i=0; inum_sids1; i++) sid_copy(&members[i], &q_u->sid[i].sid); alias_rids = NULL; num_alias_rids = 0; become_root(); ntstatus1 = pdb_enum_alias_memberships(p->mem_ctx, &info->sid, members, q_u->num_sids1, &alias_rids, &num_alias_rids); unbecome_root(); if (!NT_STATUS_IS_OK(ntstatus1)) { return ntstatus1; } init_samr_r_query_useraliases(r_u, num_alias_rids, alias_rids, NT_STATUS_OK); return NT_STATUS_OK; } /********************************************************************* _samr_query_aliasmem *********************************************************************/ NTSTATUS _samr_query_aliasmem(pipes_struct *p, SAMR_Q_QUERY_ALIASMEM *q_u, SAMR_R_QUERY_ALIASMEM *r_u) { NTSTATUS status; size_t i; size_t num_sids = 0; DOM_SID2 *sid; DOM_SID *sids=NULL; DOM_SID alias_sid; uint32 acc_granted; /* find the policy handle. open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_GET_MEMBERS, "_samr_query_aliasmem"))) { return r_u->status; } DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid))); become_root(); status = pdb_enum_aliasmem(&alias_sid, &sids, &num_sids); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { return status; } if (num_sids) { sid = TALLOC_ZERO_ARRAY(p->mem_ctx, DOM_SID2, num_sids); if (sid == NULL) { SAFE_FREE(sids); return NT_STATUS_NO_MEMORY; } } else { sid = NULL; } for (i = 0; i < num_sids; i++) { init_dom_sid2(&sid[i], &sids[i]); } init_samr_r_query_aliasmem(r_u, num_sids, sid, NT_STATUS_OK); TALLOC_FREE(sids); return NT_STATUS_OK; } /********************************************************************* _samr_query_groupmem *********************************************************************/ NTSTATUS _samr_query_groupmem(pipes_struct *p, SAMR_Q_QUERY_GROUPMEM *q_u, SAMR_R_QUERY_GROUPMEM *r_u) { DOM_SID group_sid; fstring group_sid_str; size_t i, num_members; uint32 *rid=NULL; uint32 *attr=NULL; uint32 acc_granted; NTSTATUS result; /* find the policy handle. open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->group_pol, &group_sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_GET_MEMBERS, "_samr_query_groupmem"))) { return r_u->status; } sid_to_string(group_sid_str, &group_sid); DEBUG(10, ("sid is %s\n", group_sid_str)); if (!sid_check_is_in_our_domain(&group_sid)) { DEBUG(3, ("sid %s is not in our domain\n", group_sid_str)); return NT_STATUS_NO_SUCH_GROUP; } DEBUG(10, ("lookup on Domain SID\n")); become_root(); result = pdb_enum_group_members(p->mem_ctx, &group_sid, &rid, &num_members); unbecome_root(); if (!NT_STATUS_IS_OK(result)) return result; attr=TALLOC_ZERO_ARRAY(p->mem_ctx, uint32, num_members); if ((num_members!=0) && (attr==NULL)) return NT_STATUS_NO_MEMORY; for (i=0; ialias_pol, &alias_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_ADD_MEMBER, "_samr_add_aliasmem"))) { return r_u->status; } DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid))); se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); ret = pdb_add_aliasmem(&alias_sid, &q_u->sid.sid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ if (NT_STATUS_IS_OK(ret)) { force_flush_samr_cache(disp_info); } return ret; } /********************************************************************* _samr_del_aliasmem *********************************************************************/ NTSTATUS _samr_del_aliasmem(pipes_struct *p, SAMR_Q_DEL_ALIASMEM *q_u, SAMR_R_DEL_ALIASMEM *r_u) { DOM_SID alias_sid; uint32 acc_granted; SE_PRIV se_rights; BOOL can_add_accounts; NTSTATUS ret; DISP_INFO *disp_info = NULL; /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_REMOVE_MEMBER, "_samr_del_aliasmem"))) { return r_u->status; } DEBUG(10, ("_samr_del_aliasmem:sid is %s\n", sid_string_static(&alias_sid))); se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); ret = pdb_del_aliasmem(&alias_sid, &q_u->sid.sid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ if (NT_STATUS_IS_OK(ret)) { force_flush_samr_cache(disp_info); } return ret; } /********************************************************************* _samr_add_groupmem *********************************************************************/ NTSTATUS _samr_add_groupmem(pipes_struct *p, SAMR_Q_ADD_GROUPMEM *q_u, SAMR_R_ADD_GROUPMEM *r_u) { DOM_SID group_sid; uint32 group_rid; uint32 acc_granted; SE_PRIV se_rights; BOOL can_add_accounts; DISP_INFO *disp_info = NULL; /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_ADD_MEMBER, "_samr_add_groupmem"))) { return r_u->status; } DEBUG(10, ("sid is %s\n", sid_string_static(&group_sid))); if (!sid_peek_check_rid(get_global_sam_sid(), &group_sid, &group_rid)) { return NT_STATUS_INVALID_HANDLE; } se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); r_u->status = pdb_add_groupmem(p->mem_ctx, group_rid, q_u->rid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ force_flush_samr_cache(disp_info); return r_u->status; } /********************************************************************* _samr_del_groupmem *********************************************************************/ NTSTATUS _samr_del_groupmem(pipes_struct *p, SAMR_Q_DEL_GROUPMEM *q_u, SAMR_R_DEL_GROUPMEM *r_u) { DOM_SID group_sid; uint32 group_rid; uint32 acc_granted; SE_PRIV se_rights; BOOL can_add_accounts; DISP_INFO *disp_info = NULL; /* * delete the group member named q_u->rid * who is a member of the sid associated with the handle * the rid is a user's rid as the group is a domain group. */ /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_REMOVE_MEMBER, "_samr_del_groupmem"))) { return r_u->status; } if (!sid_peek_check_rid(get_global_sam_sid(), &group_sid, &group_rid)) { return NT_STATUS_INVALID_HANDLE; } se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); r_u->status = pdb_del_groupmem(p->mem_ctx, group_rid, q_u->rid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ force_flush_samr_cache(disp_info); return r_u->status; } /********************************************************************* _samr_delete_dom_user *********************************************************************/ NTSTATUS _samr_delete_dom_user(pipes_struct *p, SAMR_Q_DELETE_DOM_USER *q_u, SAMR_R_DELETE_DOM_USER *r_u ) { DOM_SID user_sid; struct samu *sam_pass=NULL; uint32 acc_granted; BOOL can_add_accounts; uint32 acb_info; DISP_INFO *disp_info = NULL; BOOL ret; DEBUG(5, ("_samr_delete_dom_user: %d\n", __LINE__)); /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->user_pol, &user_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_user"))) { return r_u->status; } if (!sid_check_is_in_our_domain(&user_sid)) return NT_STATUS_CANNOT_DELETE; /* check if the user exists before trying to delete */ if ( !(sam_pass = samu_new( NULL )) ) { return NT_STATUS_NO_MEMORY; } become_root(); ret = pdb_getsampwsid(sam_pass, &user_sid); unbecome_root(); if( !ret ) { DEBUG(5,("_samr_delete_dom_user:User %s doesn't exist.\n", sid_string_static(&user_sid))); TALLOC_FREE(sam_pass); return NT_STATUS_NO_SUCH_USER; } acb_info = pdb_get_acct_ctrl(sam_pass); /* For machine accounts it's the SeMachineAccountPrivilege that counts. */ if ( acb_info & ACB_WSTRUST ) { can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_machine_account ); } else { can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users ); } /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); r_u->status = pdb_delete_user(p->mem_ctx, sam_pass); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ if ( !NT_STATUS_IS_OK(r_u->status) ) { DEBUG(5,("_samr_delete_dom_user: Failed to delete entry for " "user %s: %s.\n", pdb_get_username(sam_pass), nt_errstr(r_u->status))); TALLOC_FREE(sam_pass); return r_u->status; } TALLOC_FREE(sam_pass); if (!close_policy_hnd(p, &q_u->user_pol)) return NT_STATUS_OBJECT_NAME_INVALID; force_flush_samr_cache(disp_info); return NT_STATUS_OK; } /********************************************************************* _samr_delete_dom_group *********************************************************************/ NTSTATUS _samr_delete_dom_group(pipes_struct *p, SAMR_Q_DELETE_DOM_GROUP *q_u, SAMR_R_DELETE_DOM_GROUP *r_u) { DOM_SID group_sid; uint32 group_rid; uint32 acc_granted; SE_PRIV se_rights; BOOL can_add_accounts; DISP_INFO *disp_info = NULL; DEBUG(5, ("samr_delete_dom_group: %d\n", __LINE__)); /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->group_pol, &group_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_group"))) { return r_u->status; } DEBUG(10, ("sid is %s\n", sid_string_static(&group_sid))); if (!sid_peek_check_rid(get_global_sam_sid(), &group_sid, &group_rid)) { return NT_STATUS_NO_SUCH_GROUP; } se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); r_u->status = pdb_delete_dom_group(p->mem_ctx, group_rid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ if ( !NT_STATUS_IS_OK(r_u->status) ) { DEBUG(5,("_samr_delete_dom_group: Failed to delete mapping " "entry for group %s: %s\n", sid_string_static(&group_sid), nt_errstr(r_u->status))); return r_u->status; } if (!close_policy_hnd(p, &q_u->group_pol)) return NT_STATUS_OBJECT_NAME_INVALID; force_flush_samr_cache(disp_info); return NT_STATUS_OK; } /********************************************************************* _samr_delete_dom_alias *********************************************************************/ NTSTATUS _samr_delete_dom_alias(pipes_struct *p, SAMR_Q_DELETE_DOM_ALIAS *q_u, SAMR_R_DELETE_DOM_ALIAS *r_u) { DOM_SID alias_sid; uint32 acc_granted; SE_PRIV se_rights; BOOL can_add_accounts; BOOL ret; DISP_INFO *disp_info = NULL; DEBUG(5, ("_samr_delete_dom_alias: %d\n", __LINE__)); /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &alias_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; /* copy the handle to the outgoing reply */ memcpy( &r_u->pol, &q_u->alias_pol, sizeof(r_u->pol) ); if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_delete_dom_alias"))) { return r_u->status; } DEBUG(10, ("sid is %s\n", sid_string_static(&alias_sid))); /* Don't let Windows delete builtin groups */ if ( sid_check_is_in_builtin( &alias_sid ) ) { return NT_STATUS_SPECIAL_ACCOUNT; } if (!sid_check_is_in_our_domain(&alias_sid)) return NT_STATUS_NO_SUCH_ALIAS; DEBUG(10, ("lookup on Local SID\n")); se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); /* Have passdb delete the alias */ ret = pdb_delete_alias(&alias_sid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ if ( !ret ) return NT_STATUS_ACCESS_DENIED; if (!close_policy_hnd(p, &q_u->alias_pol)) return NT_STATUS_OBJECT_NAME_INVALID; force_flush_samr_cache(disp_info); return NT_STATUS_OK; } /********************************************************************* _samr_create_dom_group *********************************************************************/ NTSTATUS _samr_create_dom_group(pipes_struct *p, SAMR_Q_CREATE_DOM_GROUP *q_u, SAMR_R_CREATE_DOM_GROUP *r_u) { DOM_SID dom_sid; DOM_SID info_sid; const char *name; struct samr_info *info; uint32 acc_granted; SE_PRIV se_rights; BOOL can_add_accounts; DISP_INFO *disp_info = NULL; /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->pol, &dom_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_GROUP, "_samr_create_dom_group"))) { return r_u->status; } if (!sid_equal(&dom_sid, get_global_sam_sid())) return NT_STATUS_ACCESS_DENIED; name = rpcstr_pull_unistr2_talloc(p->mem_ctx, &q_u->uni_acct_desc); if (name == NULL) { return NT_STATUS_NO_MEMORY; } r_u->status = can_create(p->mem_ctx, name); if (!NT_STATUS_IS_OK(r_u->status)) { return r_u->status; } se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); /* check that we successfully create the UNIX group */ r_u->status = pdb_create_dom_group(p->mem_ctx, name, &r_u->rid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ /* check if we should bail out here */ if ( !NT_STATUS_IS_OK(r_u->status) ) return r_u->status; sid_compose(&info_sid, get_global_sam_sid(), r_u->rid); if ((info = get_samr_info_by_sid(&info_sid)) == NULL) return NT_STATUS_NO_MEMORY; /* they created it; let the user do what he wants with it */ info->acc_granted = GENERIC_RIGHTS_GROUP_ALL_ACCESS; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &r_u->pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; force_flush_samr_cache(disp_info); return NT_STATUS_OK; } /********************************************************************* _samr_create_dom_alias *********************************************************************/ NTSTATUS _samr_create_dom_alias(pipes_struct *p, SAMR_Q_CREATE_DOM_ALIAS *q_u, SAMR_R_CREATE_DOM_ALIAS *r_u) { DOM_SID dom_sid; DOM_SID info_sid; fstring name; struct samr_info *info; uint32 acc_granted; gid_t gid; NTSTATUS result; SE_PRIV se_rights; BOOL can_add_accounts; DISP_INFO *disp_info = NULL; /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->dom_pol, &dom_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_CREATE_ALIAS, "_samr_create_alias"))) { return r_u->status; } if (!sid_equal(&dom_sid, get_global_sam_sid())) return NT_STATUS_ACCESS_DENIED; unistr2_to_ascii(name, &q_u->uni_acct_desc, sizeof(name)-1); se_priv_copy( &se_rights, &se_add_users ); can_add_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_rights ); result = can_create(p->mem_ctx, name); if (!NT_STATUS_IS_OK(result)) { return result; } /******** BEGIN SeAddUsers BLOCK *********/ if ( can_add_accounts ) become_root(); /* Have passdb create the alias */ result = pdb_create_alias(name, &r_u->rid); if ( can_add_accounts ) unbecome_root(); /******** END SeAddUsers BLOCK *********/ if (!NT_STATUS_IS_OK(result)) { DEBUG(10, ("pdb_create_alias failed: %s\n", nt_errstr(result))); return result; } sid_copy(&info_sid, get_global_sam_sid()); sid_append_rid(&info_sid, r_u->rid); if (!sid_to_gid(&info_sid, &gid)) { DEBUG(10, ("Could not find alias just created\n")); return NT_STATUS_ACCESS_DENIED; } /* check if the group has been successfully created */ if ( getgrgid(gid) == NULL ) { DEBUG(10, ("getgrgid(%d) of just created alias failed\n", gid)); return NT_STATUS_ACCESS_DENIED; } if ((info = get_samr_info_by_sid(&info_sid)) == NULL) return NT_STATUS_NO_MEMORY; /* they created it; let the user do what he wants with it */ info->acc_granted = GENERIC_RIGHTS_ALIAS_ALL_ACCESS; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &r_u->alias_pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; force_flush_samr_cache(disp_info); return NT_STATUS_OK; } /********************************************************************* _samr_query_groupinfo sends the name/comment pair of a domain group level 1 send also the number of users of that group *********************************************************************/ NTSTATUS _samr_query_groupinfo(pipes_struct *p, SAMR_Q_QUERY_GROUPINFO *q_u, SAMR_R_QUERY_GROUPINFO *r_u) { DOM_SID group_sid; GROUP_MAP map; GROUP_INFO_CTR *ctr; uint32 acc_granted; BOOL ret; if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_LOOKUP_INFO, "_samr_query_groupinfo"))) { return r_u->status; } become_root(); ret = get_domain_group_from_sid(group_sid, &map); unbecome_root(); if (!ret) return NT_STATUS_INVALID_HANDLE; ctr=TALLOC_ZERO_P(p->mem_ctx, GROUP_INFO_CTR); if (ctr==NULL) return NT_STATUS_NO_MEMORY; switch (q_u->switch_level) { case 1: { uint32 *members; size_t num_members; ctr->switch_value1 = 1; become_root(); r_u->status = pdb_enum_group_members( p->mem_ctx, &group_sid, &members, &num_members); unbecome_root(); if (!NT_STATUS_IS_OK(r_u->status)) { return r_u->status; } init_samr_group_info1(&ctr->group.info1, map.nt_name, map.comment, num_members); break; } case 2: ctr->switch_value1 = 2; init_samr_group_info2(&ctr->group.info2, map.nt_name); break; case 3: ctr->switch_value1 = 3; init_samr_group_info3(&ctr->group.info3); break; case 4: ctr->switch_value1 = 4; init_samr_group_info4(&ctr->group.info4, map.comment); break; case 5: { /* uint32 *members; size_t num_members; */ ctr->switch_value1 = 5; /* become_root(); r_u->status = pdb_enum_group_members( p->mem_ctx, &group_sid, &members, &num_members); unbecome_root(); if (!NT_STATUS_IS_OK(r_u->status)) { return r_u->status; } */ init_samr_group_info5(&ctr->group.info5, map.nt_name, map.comment, 0 /* num_members */); /* in w2k3 this is always 0 */ break; } default: return NT_STATUS_INVALID_INFO_CLASS; } init_samr_r_query_groupinfo(r_u, ctr, NT_STATUS_OK); return NT_STATUS_OK; } /********************************************************************* _samr_set_groupinfo update a domain group's comment. *********************************************************************/ NTSTATUS _samr_set_groupinfo(pipes_struct *p, SAMR_Q_SET_GROUPINFO *q_u, SAMR_R_SET_GROUPINFO *r_u) { DOM_SID group_sid; GROUP_MAP map; GROUP_INFO_CTR *ctr; uint32 acc_granted; NTSTATUS ret; BOOL result; BOOL can_mod_accounts; DISP_INFO *disp_info = NULL; if (!get_lsa_policy_samr_sid(p, &q_u->pol, &group_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_GROUP_SET_INFO, "_samr_set_groupinfo"))) { return r_u->status; } become_root(); result = get_domain_group_from_sid(group_sid, &map); unbecome_root(); if (!result) return NT_STATUS_NO_SUCH_GROUP; ctr=q_u->ctr; switch (ctr->switch_value1) { case 1: unistr2_to_ascii(map.comment, &(ctr->group.info1.uni_acct_desc), sizeof(map.comment)-1); break; case 4: unistr2_to_ascii(map.comment, &(ctr->group.info4.uni_acct_desc), sizeof(map.comment)-1); break; default: return NT_STATUS_INVALID_INFO_CLASS; } can_mod_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_mod_accounts ) become_root(); ret = pdb_update_group_mapping_entry(&map); if ( can_mod_accounts ) unbecome_root(); /******** End SeAddUsers BLOCK *********/ if (NT_STATUS_IS_OK(ret)) { force_flush_samr_cache(disp_info); } return ret; } /********************************************************************* _samr_set_aliasinfo update an alias's comment. *********************************************************************/ NTSTATUS _samr_set_aliasinfo(pipes_struct *p, SAMR_Q_SET_ALIASINFO *q_u, SAMR_R_SET_ALIASINFO *r_u) { DOM_SID group_sid; struct acct_info info; ALIAS_INFO_CTR *ctr; uint32 acc_granted; BOOL ret; BOOL can_mod_accounts; DISP_INFO *disp_info = NULL; if (!get_lsa_policy_samr_sid(p, &q_u->alias_pol, &group_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(acc_granted, SA_RIGHT_ALIAS_SET_INFO, "_samr_set_aliasinfo"))) { return r_u->status; } ctr=&q_u->ctr; /* get the current group information */ become_root(); ret = pdb_get_aliasinfo( &group_sid, &info ); unbecome_root(); if ( !ret ) { return NT_STATUS_NO_SUCH_ALIAS; } switch (ctr->level) { case 2: { fstring group_name, acct_name; NTSTATUS status; /* We currently do not support renaming groups in the the BUILTIN domain. Refer to util_builtin.c to understand why. The eventually needs to be fixed to be like Windows where you can rename builtin groups, just not delete them */ if ( sid_check_is_in_builtin( &group_sid ) ) { return NT_STATUS_SPECIAL_ACCOUNT; } /* There has to be a valid name (and it has to be different) */ if ( !ctr->alias.info2.name.string ) return NT_STATUS_INVALID_PARAMETER; unistr2_to_ascii( acct_name, ctr->alias.info2.name.string, sizeof(acct_name)-1 ); /* If the name is the same just reply "ok". Yes this doesn't allow you to change the case of a group name. */ if ( strequal( acct_name, info.acct_name ) ) return NT_STATUS_OK; fstrcpy( info.acct_name, acct_name ); /* make sure the name doesn't already exist as a user or local group */ fstr_sprintf( group_name, "%s\\%s", global_myname(), info.acct_name ); status = can_create( p->mem_ctx, group_name ); if ( !NT_STATUS_IS_OK( status ) ) return status; break; } case 3: if ( ctr->alias.info3.description.string ) { unistr2_to_ascii( info.acct_desc, ctr->alias.info3.description.string, sizeof(info.acct_desc)-1 ); } else fstrcpy( info.acct_desc, "" ); break; default: return NT_STATUS_INVALID_INFO_CLASS; } can_mod_accounts = user_has_privileges( p->pipe_user.nt_user_token, &se_add_users ); /******** BEGIN SeAddUsers BLOCK *********/ if ( can_mod_accounts ) become_root(); ret = pdb_set_aliasinfo( &group_sid, &info ); if ( can_mod_accounts ) unbecome_root(); /******** End SeAddUsers BLOCK *********/ if (ret) { force_flush_samr_cache(disp_info); } return ret ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED; } /********************************************************************* _samr_get_dom_pwinfo *********************************************************************/ NTSTATUS _samr_get_dom_pwinfo(pipes_struct *p, SAMR_Q_GET_DOM_PWINFO *q_u, SAMR_R_GET_DOM_PWINFO *r_u) { /* Perform access check. Since this rpc does not require a policy handle it will not be caught by the access checks on SAMR_CONNECT or SAMR_CONNECT_ANON. */ if (!pipe_access_check(p)) { DEBUG(3, ("access denied to samr_get_dom_pwinfo\n")); r_u->status = NT_STATUS_ACCESS_DENIED; return r_u->status; } /* Actually, returning zeros here works quite well :-). */ return NT_STATUS_OK; } /********************************************************************* _samr_open_group *********************************************************************/ NTSTATUS _samr_open_group(pipes_struct *p, SAMR_Q_OPEN_GROUP *q_u, SAMR_R_OPEN_GROUP *r_u) { DOM_SID sid; DOM_SID info_sid; GROUP_MAP map; struct samr_info *info; SEC_DESC *psd = NULL; uint32 acc_granted; uint32 des_access = q_u->access_mask; size_t sd_size; NTSTATUS status; fstring sid_string; BOOL ret; SE_PRIV se_rights; if (!get_lsa_policy_samr_sid(p, &q_u->domain_pol, &sid, &acc_granted, NULL)) return NT_STATUS_INVALID_HANDLE; status = access_check_samr_function(acc_granted, SA_RIGHT_DOMAIN_OPEN_ACCOUNT, "_samr_open_group"); if ( !NT_STATUS_IS_OK(status) ) return status; /*check if access can be granted as requested by client. */ make_samr_object_sd(p->mem_ctx, &psd, &sd_size, &grp_generic_mapping, NULL, 0); se_map_generic(&des_access,&grp_generic_mapping); se_priv_copy( &se_rights, &se_add_users ); status = access_check_samr_object(psd, p->pipe_user.nt_user_token, &se_rights, GENERIC_RIGHTS_GROUP_WRITE, des_access, &acc_granted, "_samr_open_group"); if ( !NT_STATUS_IS_OK(status) ) return status; /* this should not be hard-coded like this */ if (!sid_equal(&sid, get_global_sam_sid())) return NT_STATUS_ACCESS_DENIED; sid_copy(&info_sid, get_global_sam_sid()); sid_append_rid(&info_sid, q_u->rid_group); sid_to_string(sid_string, &info_sid); if ((info = get_samr_info_by_sid(&info_sid)) == NULL) return NT_STATUS_NO_MEMORY; info->acc_granted = acc_granted; DEBUG(10, ("_samr_open_group:Opening SID: %s\n", sid_string)); /* check if that group really exists */ become_root(); ret = get_domain_group_from_sid(info->sid, &map); unbecome_root(); if (!ret) return NT_STATUS_NO_SUCH_GROUP; /* get a (unique) handle. open a policy on it. */ if (!create_policy_hnd(p, &r_u->pol, free_samr_info, (void *)info)) return NT_STATUS_OBJECT_NAME_NOT_FOUND; return NT_STATUS_OK; } /********************************************************************* _samr_remove_sid_foreign_domain *********************************************************************/ NTSTATUS _samr_remove_sid_foreign_domain(pipes_struct *p, SAMR_Q_REMOVE_SID_FOREIGN_DOMAIN *q_u, SAMR_R_REMOVE_SID_FOREIGN_DOMAIN *r_u) { DOM_SID delete_sid, domain_sid; uint32 acc_granted; NTSTATUS result; DISP_INFO *disp_info = NULL; sid_copy( &delete_sid, &q_u->sid.sid ); DEBUG(5,("_samr_remove_sid_foreign_domain: removing SID [%s]\n", sid_string_static(&delete_sid))); /* Find the policy handle. Open a policy on it. */ if (!get_lsa_policy_samr_sid(p, &q_u->dom_pol, &domain_sid, &acc_granted, &disp_info)) return NT_STATUS_INVALID_HANDLE; result = access_check_samr_function(acc_granted, STD_RIGHT_DELETE_ACCESS, "_samr_remove_sid_foreign_domain"); if (!NT_STATUS_IS_OK(result)) return result; DEBUG(8, ("_samr_remove_sid_foreign_domain:sid is %s\n", sid_string_static(&domain_sid))); /* we can only delete a user from a group since we don't have nested groups anyways. So in the latter case, just say OK */ /* TODO: The above comment nowadays is bogus. Since we have nested * groups now, and aliases members are never reported out of the unix * group membership, the "just say OK" makes this call a no-op. For * us. This needs fixing however. */ /* I've only ever seen this in the wild when deleting a user from * usrmgr.exe. domain_sid is the builtin domain, and the sid to delete * is the user about to be deleted. I very much suspect this is the * only application of this call. To verify this, let people report * other cases. */ if (!sid_check_is_builtin(&domain_sid)) { DEBUG(1,("_samr_remove_sid_foreign_domain: domain_sid = %s, " "global_sam_sid() = %s\n", sid_string_static(&domain_sid), sid_string_static(get_global_sam_sid()))); DEBUGADD(1,("please report to samba-technical@samba.org!\n")); return NT_STATUS_OK; } force_flush_samr_cache(disp_info); result = NT_STATUS_OK; return result; } /******************************************************************* _samr_query_domain_info2 ********************************************************************/ NTSTATUS _samr_query_domain_info2(pipes_struct *p, SAMR_Q_QUERY_DOMAIN_INFO2 *q_u, SAMR_R_QUERY_DOMAIN_INFO2 *r_u) { SAMR_Q_QUERY_DOMAIN_INFO q; SAMR_R_QUERY_DOMAIN_INFO r; ZERO_STRUCT(q); ZERO_STRUCT(r); DEBUG(5,("_samr_query_domain_info2: %d\n", __LINE__)); q.domain_pol = q_u->domain_pol; q.switch_value = q_u->switch_value; r_u->status = _samr_query_domain_info(p, &q, &r); r_u->ptr_0 = r.ptr_0; r_u->switch_value = r.switch_value; r_u->ctr = r.ctr; return r_u->status; } /******************************************************************* _samr_set_dom_info ********************************************************************/ NTSTATUS _samr_set_dom_info(pipes_struct *p, SAMR_Q_SET_DOMAIN_INFO *q_u, SAMR_R_SET_DOMAIN_INFO *r_u) { time_t u_expire, u_min_age; time_t u_logout; time_t u_lock_duration, u_reset_time; r_u->status = NT_STATUS_OK; DEBUG(5,("_samr_set_dom_info: %d\n", __LINE__)); /* find the policy handle. open a policy on it. */ if (!find_policy_by_hnd(p, &q_u->domain_pol, NULL)) return NT_STATUS_INVALID_HANDLE; DEBUG(5,("_samr_set_dom_info: switch_value: %d\n", q_u->switch_value)); switch (q_u->switch_value) { case 0x01: u_expire=nt_time_to_unix_abs(&q_u->ctr->info.inf1.expire); u_min_age=nt_time_to_unix_abs(&q_u->ctr->info.inf1.min_passwordage); pdb_set_account_policy(AP_MIN_PASSWORD_LEN, (uint32)q_u->ctr->info.inf1.min_length_password); pdb_set_account_policy(AP_PASSWORD_HISTORY, (uint32)q_u->ctr->info.inf1.password_history); pdb_set_account_policy(AP_USER_MUST_LOGON_TO_CHG_PASS, (uint32)q_u->ctr->info.inf1.password_properties); pdb_set_account_policy(AP_MAX_PASSWORD_AGE, (int)u_expire); pdb_set_account_policy(AP_MIN_PASSWORD_AGE, (int)u_min_age); break; case 0x02: break; case 0x03: u_logout=nt_time_to_unix_abs(&q_u->ctr->info.inf3.logout); pdb_set_account_policy(AP_TIME_TO_LOGOUT, (int)u_logout); break; case 0x05: break; case 0x06: break; case 0x07: break; case 0x0c: u_lock_duration=nt_time_to_unix_abs(&q_u->ctr->info.inf12.duration); if (u_lock_duration != -1) u_lock_duration /= 60; u_reset_time=nt_time_to_unix_abs(&q_u->ctr->info.inf12.reset_count)/60; pdb_set_account_policy(AP_LOCK_ACCOUNT_DURATION, (int)u_lock_duration); pdb_set_account_policy(AP_RESET_COUNT_TIME, (int)u_reset_time); pdb_set_account_policy(AP_BAD_ATTEMPT_LOCKOUT, (uint32)q_u->ctr->info.inf12.bad_attempt_lockout); break; default: return NT_STATUS_INVALID_INFO_CLASS; } init_samr_r_set_domain_info(r_u, NT_STATUS_OK); DEBUG(5,("_samr_set_dom_info: %d\n", __LINE__)); return r_u->status; }