diff options
Diffstat (limited to 'source3/passdb/pdb_ldap.c')
| -rw-r--r-- | source3/passdb/pdb_ldap.c | 990 |
1 files changed, 718 insertions, 272 deletions
diff --git a/source3/passdb/pdb_ldap.c b/source3/passdb/pdb_ldap.c index 4390e9d5ba..f9cd5345c7 100644 --- a/source3/passdb/pdb_ldap.c +++ b/source3/passdb/pdb_ldap.c @@ -60,7 +60,6 @@ #endif struct ldapsam_privates { - /* Former statics */ LDAP *ldap_struct; LDAPMessage *result; @@ -70,11 +69,19 @@ struct ldapsam_privates { time_t last_ping; /* retrive-once info */ const char *uri; + const char *domain_name; + DOM_SID domain_sid; + /* configuration items */ + BOOL use_ntsid; + BOOL permit_non_unix_accounts; - uint32 low_nua_rid; - uint32 high_nua_rid; + uint32 low_allocated_user_rid; + uint32 high_allocated_user_rid; + + uint32 low_allocated_group_rid; + uint32 high_allocated_group_rid; char *bind_dn; char *bind_secret; @@ -86,8 +93,6 @@ struct ldapsam_privates { static struct ldapsam_privates *static_ldap_state; -static uint32 ldapsam_get_next_available_nua_rid(struct ldapsam_privates *ldap_state); - /******************************************************************* find the ldap password ******************************************************************/ @@ -158,13 +163,16 @@ static const char *attr[] = {"uid", "pwdLastSet", "logonTime", "displayName", "homeDrive", "smbHome", "scriptPath", "profilePath", "description", - "userWorkstations", "rid", + "userWorkstations", "rid", "ntSid", "primaryGroupID", "lmPassword", "ntPassword", "acctFlags", "domain", "objectClass", "uidNumber", "gidNumber", "homeDirectory", NULL }; +static const char *domain_info_attrs[] = {"domain", "nextUserRid", + "nextGroupRid", "ntSid", NULL }; + /******************************************************************* open a connection to the ldap server. ******************************************************************/ @@ -683,22 +691,22 @@ static int ldapsam_extended_operation(struct ldapsam_privates *ldap_state, LDAP_ /******************************************************************* run the search by name. ******************************************************************/ -static int ldapsam_search_one_user (struct ldapsam_privates *ldap_state, const char *filter, LDAPMessage ** result) +static int ldapsam_search_suffix (struct ldapsam_privates *ldap_state, const char *filter, const char **search_attr, LDAPMessage ** result) { int scope = LDAP_SCOPE_SUBTREE; int rc; - DEBUG(2, ("ldapsam_search_one_user: searching for:[%s]\n", filter)); + DEBUG(2, ("ldapsam_search_suffix: searching for:[%s]\n", filter)); - rc = ldapsam_search(ldap_state, lp_ldap_suffix (), scope, filter, attr, 0, result); + rc = ldapsam_search(ldap_state, lp_ldap_suffix (), scope, filter, search_attr, 0, result); if (rc != LDAP_SUCCESS) { char *ld_error = NULL; ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, &ld_error); - DEBUG(0,("ldapsam_search_one_user: Problem during the LDAP search: %s (%s)\n", + DEBUG(0,("ldapsam_search_suffix: Problem during the LDAP search: %s (%s)\n", ld_error?ld_error:"(unknown)", ldap_err2string (rc))); - DEBUG(3,("ldapsam_search_one_user: Query was: %s, %s\n", lp_ldap_suffix(), + DEBUG(3,("ldapsam_search_suffix: Query was: %s, %s\n", lp_ldap_suffix(), filter)); SAFE_FREE(ld_error); } @@ -709,7 +717,7 @@ static int ldapsam_search_one_user (struct ldapsam_privates *ldap_state, const c /******************************************************************* run the search by name. ******************************************************************/ -static int ldapsam_search_one_user_by_name (struct ldapsam_privates *ldap_state, const char *user, +static int ldapsam_search_suffix_by_name (struct ldapsam_privates *ldap_state, const char *user, LDAPMessage ** result) { pstring filter; @@ -734,13 +742,13 @@ static int ldapsam_search_one_user_by_name (struct ldapsam_privates *ldap_state, all_string_sub(filter, "%u", escape_user, sizeof(pstring)); SAFE_FREE(escape_user); - return ldapsam_search_one_user(ldap_state, filter, result); + return ldapsam_search_suffix(ldap_state, filter, attr, result); } /******************************************************************* run the search by rid. ******************************************************************/ -static int ldapsam_search_one_user_by_rid (struct ldapsam_privates *ldap_state, +static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state, uint32 rid, LDAPMessage ** result) { @@ -750,7 +758,26 @@ static int ldapsam_search_one_user_by_rid (struct ldapsam_privates *ldap_state, /* check if the user rid exsists, if not, try searching on the uid */ snprintf(filter, sizeof(filter) - 1, "rid=%i", rid); - rc = ldapsam_search_one_user(ldap_state, filter, result); + rc = ldapsam_search_suffix(ldap_state, filter, attr, result); + + return rc; +} + +/******************************************************************* + run the search by SID. +******************************************************************/ +static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state, + const DOM_SID *sid, + LDAPMessage ** result) +{ + pstring filter; + int rc; + fstring sid_string; + + /* check if the user rid exsists, if not, try searching on the uid */ + + snprintf(filter, sizeof(filter) - 1, "ntSid=%s", sid_to_string(sid_string, sid)); + rc = ldapsam_search_suffix(ldap_state, filter, attr, result); return rc; } @@ -873,6 +900,55 @@ static void make_a_mod (LDAPMod *** modlist, int modop, const char *attribute, c *modlist = mods; } +/********************************************************************** + Set attribute to newval in LDAP, regardless of what value the + attribute had in LDAP before. +*********************************************************************/ +static void make_ldap_mod(LDAP *ldap_struct, LDAPMessage *existing, + LDAPMod ***mods, + const char *attribute, const char *newval) +{ + char **values = NULL; + + if (existing != NULL) { + values = ldap_get_values(ldap_struct, existing, attribute); + } + + if ((values != NULL) && (values[0] != NULL) && + strcmp(values[0], newval) == 0) { + + /* Believe it or not, but LDAP will deny a delete and + an add at the same time if the values are the + same... */ + + ldap_value_free(values); + return; + } + + /* Regardless of the real operation (add or modify) + we add the new value here. We rely on deleting + the old value, should it exist. */ + + if ((newval != NULL) && (strlen(newval) > 0)) { + make_a_mod(mods, LDAP_MOD_ADD, attribute, newval); + } + + if (values == NULL) { + /* There has been no value before, so don't delete it. + Here's a possible race: We might end up with + duplicate attributes */ + return; + } + + /* By deleting exactly the value we found in the entry this + should be race-free in the sense that the LDAP-Server will + deny the complete operation if somebody changed the + attribute behind our back. */ + + make_a_mod(mods, LDAP_MOD_DELETE, attribute, values[0]); + ldap_value_free(values); +} + /******************************************************************* Delete complete object or objectclass and attrs from object found in search_result depending on lp_ldap_delete_dn @@ -956,6 +1032,500 @@ static NTSTATUS ldapsam_delete_entry(struct ldapsam_privates *ldap_state, return NT_STATUS_OK; } +/********************************************************************** +Search for the domain info entry +*********************************************************************/ +static int ldapsam_search_domain_info(struct ldapsam_privates *ldap_state, + LDAPMessage ** result) +{ + pstring filter; + int rc; + + slprintf(filter, sizeof(filter)-1, + "(&(objectClass=sambaDomain)(domain=%s))", + ldap_state->domain_name); + + DEBUG(2, ("Searching for:[%s]\n", filter)); + + rc = ldapsam_search_suffix(ldap_state, filter, + domain_info_attrs, result); + + if (rc != LDAP_SUCCESS) { + DEBUG(2,("Problem during LDAPsearch: %s\n", ldap_err2string (rc))); + DEBUG(2,("Query was: %s, %s\n", lp_ldap_suffix(), filter)); + } + + return rc; +} + +/********************************************************************** + If this entry is is the 'allocated' range, extract the RID and return + it, so we can find the 'next' rid to allocate. + + Do this, no matter what type of object holds the RID - be it a user, + group or somthing else. +*********************************************************************/ +static uint32 entry_to_rid(struct ldapsam_privates *ldap_state, LDAPMessage *entry, int rid_type) +{ + pstring sid_string; + DOM_SID dom_sid; + uint32 rid; + + if (!get_single_attribute(ldap_state->ldap_struct, entry, "ntSid", + sid_string)) { + return 0; + } + + if (!string_to_sid(&dom_sid, sid_string)) { + return 0; + } + + if (!sid_peek_check_rid(&dom_sid, get_global_sam_sid(), &rid)) { + /* not our domain, so we don't care */ + return 0; + } + + switch (rid_type) { + case USER_RID_TYPE: + if (rid >= ldap_state->low_allocated_user_rid && + rid <= ldap_state->high_allocated_user_rid) { + return rid; + } + break; + case GROUP_RID_TYPE: + if (rid >= ldap_state->low_allocated_group_rid && + rid <= ldap_state->high_allocated_group_rid) { + return rid; + } + break; + } + return 0; +} + + +/********************************************************************** +Connect to LDAP server and find the next available 'allocated' RID. + +The search is done 'per type' as we allocate seperate pools for the +EVEN and ODD (user and group) RIDs. + +This is only done once, so that we can fill out the sambaDomain. +*********************************************************************/ +static uint32 search_next_allocated_rid(struct ldapsam_privates *ldap_state, int rid_type) +{ + int rc; + LDAPMessage *result; + LDAPMessage *entry; + uint32 top_rid = 0; + uint32 next_rid; + uint32 count; + uint32 rid; + const char *sid_attr[] = {"ntSid", NULL}; + const char *filter = "(ntSid=*)"; + + DEBUG(2, ("search_top_allocated_rid: searching for:[%s]\n", filter)); + + rc = ldapsam_search_suffix(ldap_state, filter, + sid_attr, &result); + + if (rc != LDAP_SUCCESS) { + DEBUG(3, ("LDAP search failed! cannot find base for NUA RIDs: %s\n", ldap_err2string(rc))); + DEBUGADD(3, ("Query was: %s, %s\n", lp_ldap_suffix(), filter)); + + result = NULL; + return 0; + } + + count = ldap_count_entries(ldap_state->ldap_struct, result); + DEBUG(2, ("search_top_allocated_rid: %d entries in the base!\n", count)); + + if (count == 0) { + DEBUG(3, ("LDAP search returned no records, assuming no allocated RIDs present!: %s\n", ldap_err2string(rc))); + DEBUGADD(3, ("Query was: %s, %s\n", lp_ldap_suffix(), filter)); + } else { + entry = ldap_first_entry(ldap_state->ldap_struct,result); + + top_rid = entry_to_rid(ldap_state, entry, rid_type); + + while ((entry = ldap_next_entry(ldap_state->ldap_struct, entry))) { + + rid = entry_to_rid(ldap_state, entry, rid_type); + if (((rid & ~RID_TYPE_MASK) == rid_type) && (rid > top_rid)) { + top_rid = rid; + } + } + } + + switch (rid_type) { + case USER_RID_TYPE: + if (top_rid < ldap_state->low_allocated_user_rid) { + return ldap_state->low_allocated_user_rid; + } + break; + case GROUP_RID_TYPE: + if (top_rid < ldap_state->low_allocated_group_rid) + return ldap_state->low_allocated_group_rid; + break; + } + + next_rid = (top_rid & ~RID_TYPE_MASK) + rid_type + RID_MULTIPLIER; + + switch (rid_type) { + case USER_RID_TYPE: + if (next_rid > ldap_state->high_allocated_user_rid) { + return 0; + } + break; + case GROUP_RID_TYPE: + if (next_rid > ldap_state->high_allocated_group_rid) { + return 0; + } + break; + } + return next_rid; +} + +/********************************************************************** + Add the sambaDomain to LDAP, so we don't have to search for this stuff + again. This is a once-add operation for now. + + TODO: Add other attributes, and allow modification. +*********************************************************************/ +static NTSTATUS add_new_domain_info(struct ldapsam_privates *ldap_state) +{ + pstring tmp; + pstring filter; + LDAPMod **mods = NULL; + int rc; + int ldap_op; + LDAPMessage *result = NULL; + LDAPMessage *entry = NULL; + char *dn = NULL; + int num_result; + + uint32 next_allocated_user_rid; + uint32 next_allocated_group_rid; + + next_allocated_user_rid = search_next_allocated_rid(ldap_state, USER_RID_TYPE); + if (!next_allocated_user_rid) { + return NT_STATUS_UNSUCCESSFUL; + } + + next_allocated_group_rid = search_next_allocated_rid(ldap_state, GROUP_RID_TYPE); + if (!next_allocated_group_rid) { + return NT_STATUS_UNSUCCESSFUL; + } + + slprintf (filter, sizeof (filter) - 1, "domain=%s", ldap_state->domain_name); + rc = ldapsam_search_suffix(ldap_state, filter, domain_info_attrs, &result); + if (rc != LDAP_SUCCESS) { + return NT_STATUS_UNSUCCESSFUL; + } + + num_result = ldap_count_entries(ldap_state->ldap_struct, result); + + if (num_result > 1) { + DEBUG (0, ("More than domain with that name exists: bailing out!\n")); + ldap_msgfree(result); + return NT_STATUS_UNSUCCESSFUL; + } + + /* Check if we need to update an existing entry */ + if (num_result == 1) { + char *tmp_dn; + + DEBUG(3,("Domain exists without samba properties: adding them\n")); + ldap_op = LDAP_MOD_REPLACE; + entry = ldap_first_entry (ldap_state->ldap_struct, result); + tmp_dn = ldap_get_dn (ldap_state->ldap_struct, entry); + asprintf (&dn, "%s", tmp_dn); + ldap_memfree (tmp_dn); + } else { + /* Check if we need to add an entry */ + DEBUG(3,("Adding new domain\n")); + ldap_op = LDAP_MOD_ADD; + asprintf (&dn, "domain=%s,%s", ldap_state->domain_name, lp_ldap_suffix ()); + } + + /* Free original search */ + ldap_msgfree(result); + + if (!dn) { + return NT_STATUS_NO_MEMORY; + } + + /* make the changes - the entry *must* not already have samba attributes */ + make_a_mod(&mods, LDAP_MOD_ADD, "domain", ldap_state->domain_name); + + sid_to_string(tmp, &ldap_state->domain_sid); + make_a_mod(&mods, LDAP_MOD_ADD, "ntSid", tmp); + + snprintf(tmp, sizeof(tmp)-1, "%i", next_allocated_user_rid); + make_a_mod(&mods, LDAP_MOD_ADD, "nextUserRid", tmp); + + snprintf(tmp, sizeof(tmp)-1, "%i", next_allocated_group_rid); + make_a_mod(&mods, LDAP_MOD_ADD, "nextGroupRid", tmp); + + make_a_mod(&mods, LDAP_MOD_ADD, "objectclass", "sambaDomain"); + + switch(ldap_op) + { + case LDAP_MOD_ADD: + rc = ldapsam_add(ldap_state, dn, mods); + break; + case LDAP_MOD_REPLACE: + rc = ldapsam_modify(ldap_state, dn, mods); + break; + default: + DEBUG(0,("Wrong LDAP operation type: %d!\n", ldap_op)); + return NT_STATUS_INVALID_PARAMETER; + } + + if (rc!=LDAP_SUCCESS) { + char *ld_error = NULL; + ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, + &ld_error); + DEBUG(1, + ("failed to %s domain dn= %s with: %s\n\t%s\n", + ldap_op == LDAP_MOD_ADD ? "add" : "modify", + dn, ldap_err2string(rc), + ld_error?ld_error:"unknown")); + SAFE_FREE(ld_error); + + ldap_mods_free(mods,1); + return NT_STATUS_UNSUCCESSFUL; + } + + DEBUG(2,("added: domain = %s in the LDAP database\n", ldap_state->domain_name)); + ldap_mods_free(mods, 1); + return NT_STATUS_OK; +} + +/********************************************************************** + Even if the sambaAccount attribute in LDAP tells us that this RID is + safe to use, always check before use. +*********************************************************************/ +static BOOL sid_in_use(struct ldapsam_privates *ldap_state, + const DOM_SID *sid, int *error) +{ + pstring filter; + fstring sid_string; + LDAPMessage *result = NULL; + int count; + int rc; + const char *sid_attr[] = {"ntSid", NULL}; + + slprintf(filter, sizeof(filter)-1, "(ntSid=%s)", sid_to_string(sid_string, sid)); + + rc = ldapsam_search_suffix(ldap_state, filter, sid_attr, &result); + + if (rc != LDAP_SUCCESS) { + char *ld_error = NULL; + ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, &ld_error); + DEBUG(2, ("Failed to check if sid %s is alredy in use: %s\n", + sid_string, ld_error)); + SAFE_FREE(ld_error); + + *error = rc; + return True; + } + + if ((count = ldap_count_entries(ldap_state->ldap_struct, result)) > 0) { + DEBUG(3, ("Sid %s already in use - trying next RID\n", + sid_string)); + ldap_msgfree(result); + return True; + } + + ldap_msgfree(result); + + /* good, sid is not in use */ + return False; +} + +/********************************************************************** + Set the new nextRid attribute, and return one we can use. + + This also checks that this RID is actually free - in case the admin + manually stole it :-). +*********************************************************************/ +static NTSTATUS ldapsam_next_rid(struct ldapsam_privates *ldap_state, uint32 *rid, int rid_type) +{ + NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; + int rc; + LDAPMessage *result = NULL; + LDAPMessage *entry = NULL; + char *dn; + LDAPMod **mods = NULL; + int count; + fstring old_rid_string; + fstring next_rid_string; + uint32 next_rid; + int attempts = 0; + + if (!ldap_state->use_ntsid) { + DEBUG(0, ("Allocated RIDs require 'ldap use ntSid' to be set in smb.conf\n")); + return NT_STATUS_UNSUCCESSFUL; + } + + while (attempts < 10) { + char *ld_error; + if (ldapsam_search_domain_info(ldap_state, &result)) { + return ret; + } + + if (ldap_count_entries(ldap_state->ldap_struct, result) < 1) { + DEBUG(3, ("Got no domain info entries for domain %s\n", + ldap_state->domain_name)); + ldap_msgfree(result); + if (NT_STATUS_IS_OK(ret = add_new_domain_info(ldap_state))) { + continue; + } else { + DEBUG(0, ("Adding domain info failed with %s\n", nt_errstr(ret))); + return ret; + } + } + + if ((count = ldap_count_entries(ldap_state->ldap_struct, result)) > 1) { + DEBUG(0, ("Got too many (%d) domain info entries for domain %s\n", + count, ldap_state->domain_name)); + ldap_msgfree(result); + return ret; + } + + entry = ldap_first_entry(ldap_state->ldap_struct, result); + if (!entry) { + ldap_msgfree(result); + return ret; + } + + if ((dn = ldap_get_dn(ldap_state->ldap_struct, entry)) == NULL) { + DEBUG(0, ("Could not get domain info DN\n")); + ldap_msgfree(result); + return ret; + } + + /* yes, we keep 2 seperate counters, to avoid stomping on the two + different sets of algorithmic RIDs */ + + switch (rid_type) { + case USER_RID_TYPE: + if (!get_single_attribute(ldap_state->ldap_struct, + entry, "nextUserRid", + old_rid_string)) { + ldap_memfree(dn); + ldap_msgfree(result); + return ret; + } + break; + case GROUP_RID_TYPE: + if (!get_single_attribute(ldap_state->ldap_struct, + entry, "nextGroupRid", + old_rid_string)) { + ldap_memfree(dn); + ldap_msgfree(result); + return ret; + } + break; + } + + /* This is the core of the whole routine. If we had + scheme-style closures, there would be a *lot* less code + duplication... */ + *rid = (uint32)atol(old_rid_string); + next_rid = *rid+RID_MULTIPLIER; + + slprintf(next_rid_string, sizeof(next_rid_string)-1, "%d", next_rid); + + switch (rid_type) { + case USER_RID_TYPE: + if (next_rid > ldap_state->high_allocated_user_rid) { + return NT_STATUS_UNSUCCESSFUL; + } + + /* Try to make the modification atomically by enforcing the + old value in the delete mod. */ + make_ldap_mod(ldap_state->ldap_struct, entry, &mods, "nextUserRid", next_rid_string); + break; + + case GROUP_RID_TYPE: + if (next_rid > ldap_state->high_allocated_group_rid) { + return NT_STATUS_UNSUCCESSFUL; + } + + /* Try to make the modification atomically by enforcing the + old value in the delete mod. */ + make_ldap_mod(ldap_state->ldap_struct, entry, &mods, "nextGroupRid", next_rid_string); + break; + } + + if ((rc = ldap_modify_s(ldap_state->ldap_struct, dn, mods)) == LDAP_SUCCESS) { + DOM_SID dom_sid; + DOM_SID sid; + pstring domain_sid_string; + int error = 0; + + if (!get_single_attribute(ldap_state->ldap_struct, result, "ntSid", + domain_sid_string)) { + ldap_mods_free(mods, 1); + ldap_memfree(dn); + ldap_msgfree(result); + return ret; + } + + if (!string_to_sid(&dom_sid, domain_sid_string)) { + ldap_mods_free(mods, 1); + ldap_memfree(dn); + ldap_msgfree(result); + return ret; + } + + ldap_mods_free(mods, 1); + mods = NULL; + ldap_memfree(dn); + ldap_msgfree(result); + + sid_copy(&sid, &dom_sid); + sid_append_rid(&sid, *rid); + + /* check RID is not in use */ + if (sid_in_use(ldap_state, &sid, &error)) { + if (error) { + return ret; + } + continue; + } + + return NT_STATUS_OK; + } + + ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, &ld_error); + DEBUG(2, ("Failed to modify rid: %s\n", ld_error)); + SAFE_FREE(ld_error); + + ldap_mods_free(mods, 1); + mods = NULL; + + ldap_memfree(dn); + dn = NULL; + + ldap_msgfree(result); + result = NULL; + + { + /* Sleep for a random timeout */ + unsigned sleeptime = (sys_random()*sys_getpid()*attempts); + attempts += 1; + + sleeptime %= 100; + msleep(sleeptime); + } + } + + DEBUG(0, ("Failed to set new RID\n")); + return ret; +} + /* New Interface is being implemented here */ /********************************************************************** @@ -1076,22 +1646,37 @@ static BOOL init_sam_from_ldap (struct ldapsam_privates *ldap_state, return False; } - get_single_attribute(ldap_state->ldap_struct, entry, "uid", username); + if (!get_single_attribute(ldap_state->ldap_struct, entry, "uid", username)) { + DEBUG(1, ("No uid attribute found for this user!\n")); + return False; + } + DEBUG(2, ("Entry found for user: %s\n", username)); pstrcpy(nt_username, username); - pstrcpy(domain, lp_workgroup()); + pstrcpy(domain, ldap_state->domain_name); pdb_set_username(sampass, username, PDB_SET); pdb_set_domain(sampass, domain, PDB_DEFAULT); pdb_set_nt_username(sampass, nt_username, PDB_SET); + + if (ldap_state->use_ntsid) { + if (get_single_attribute(ldap_state->ldap_struct, entry, "ntSid", temp)) { + pdb_set_user_sid_from_string(sampass, temp, PDB_SET); + } + } else { + if (get_single_attribute(ldap_state->ldap_struct, entry, "rid", temp)) { + user_rid = (uint32)atol(temp); + pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET); + } + } - get_single_attribute(ldap_state->ldap_struct, entry, "rid", temp); - user_rid = (uint32)atol(temp); - - pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET); + if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) { + DEBUG(1, ("no rid or ntSid attribute found for this user %s\n", username)); + return False; + } if (!get_single_attribute(ldap_state->ldap_struct, entry, "primaryGroupID", temp)) { pdb_set_group_sid_from_rid(sampass, DOMAIN_GROUP_RID_USERS, PDB_DEFAULT); @@ -1306,55 +1891,6 @@ static BOOL init_sam_from_ldap (struct ldapsam_privates *ldap_state, } /********************************************************************** - Set attribute to newval in LDAP, regardless of what value the - attribute had in LDAP before. -*********************************************************************/ -static void make_ldap_mod(LDAP *ldap_struct, LDAPMessage *existing, - LDAPMod ***mods, - const char *attribute, const char *newval) -{ - char **values = NULL; - - if (existing != NULL) { - values = ldap_get_values(ldap_struct, existing, attribute); - } - - if ((values != NULL) && (values[0] != NULL) && - strcmp(values[0], newval) == 0) { - - /* Believe it or not, but LDAP will deny a delete and - an add at the same time if the values are the - same... */ - - ldap_value_free(values); - return; - } - - /* Regardless of the real operation (add or modify) - we add the new value here. We rely on deleting - the old value, should it exist. */ - - if ((newval != NULL) && (strlen(newval) > 0)) { - make_a_mod(mods, LDAP_MOD_ADD, attribute, newval); - } - - if (values == NULL) { - /* There has been no value before, so don't delete it. - Here's a possible race: We might end up with - duplicate attributes */ - return; - } - - /* By deleting exactly the value we found in the entry this - should be race-free in the sense that the LDAP-Server will - deny the complete operation if somebody changed the - attribute behind our back. */ - - make_a_mod(mods, LDAP_MOD_DELETE, attribute, values[0]); - ldap_value_free(values); -} - -/********************************************************************** Initialize SAM_ACCOUNT from an LDAP query (Based on init_buffer_from_sam in pdb_tdb.c) *********************************************************************/ @@ -1384,14 +1920,11 @@ static BOOL init_ldap_from_sam (struct ldapsam_privates *ldap_state, DEBUG(2, ("Setting entry for user: %s\n", pdb_get_username(sampass))); - rid = pdb_get_user_rid(sampass); - - if (rid == 0) { + if (pdb_get_init_flags(sampass, PDB_USERSID) == PDB_DEFAULT) { if (!IS_SAM_DEFAULT(sampass, PDB_UID)) { rid = fallback_pdb_uid_to_user_rid(pdb_get_uid(sampass)); } else if (ldap_state->permit_non_unix_accounts) { - rid = ldapsam_get_next_available_nua_rid(ldap_state); - if (rid == 0) { + if (!NT_STATUS_IS_OK(ldapsam_next_rid(ldap_state, &rid, USER_RID_TYPE))) { DEBUG(0, ("NO user RID specified on account %s, and " "finding next available NUA RID failed, " "cannot store!\n", @@ -1417,31 +1950,36 @@ static BOOL init_ldap_from_sam (struct ldapsam_privates *ldap_state, } /* only update the RID if we actually need to */ - slprintf(temp, sizeof(temp) - 1, "%i", rid); - if (need_update(sampass, PDB_USERSID)) - make_ldap_mod(ldap_state->ldap_struct, existing, mods, - "rid", temp); - - rid = pdb_get_group_rid(sampass); - - if (rid == 0) { - if (!IS_SAM_DEFAULT(sampass, PDB_GID)) { - rid = pdb_gid_to_group_rid(pdb_get_gid(sampass)); - } else if (ldap_state->permit_non_unix_accounts) { - rid = DOMAIN_GROUP_RID_USERS; + if (need_update(sampass, PDB_USERSID)) { + fstring sid_string; + fstring dom_sid_string; + const DOM_SID *user_sid; + user_sid = pdb_get_user_sid(sampass); + + if (ldap_state->use_ntsid) { + make_ldap_mod(ldap_state->ldap_struct, existing, mods, + "ntSid", sid_to_string(sid_string, user_sid)); } else { - DEBUG(0, ("NO group RID specified on account %s, " - "cannot store!\n", pdb_get_username(sampass))); - ldap_mods_free(*mods, 1); - return False; + if (!sid_peek_check_rid(get_global_sam_sid(), user_sid, &rid)) { + DEBUG(1, ("User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n", sid_to_string(sid_string, user_sid), sid_to_string(dom_sid_string, get_global_sam_sid()))); + return False; + } + slprintf(temp, sizeof(temp) - 1, "%i", rid); + make_ldap_mod(ldap_state->ldap_struct, existing, mods, + "rid", temp); } + } - slprintf(temp, sizeof(temp) - 1, "%i", rid); + /* we don't need to store the primary group RID - so leaving it + 'free' to hang off the unix primary group makes life easier */ - if (need_update(sampass, PDB_GROUPSID)) + if (need_update(sampass, PDB_GROUPSID)) { + rid = pdb_get_group_rid(sampass); + slprintf(temp, sizeof(temp) - 1, "%i", rid); make_ldap_mod(ldap_state->ldap_struct, existing, mods, "primaryGroupID", temp); + } /* displayName, cn, and gecos should all be the same * most easily accomplished by giving them the same OID @@ -1549,144 +2087,6 @@ static BOOL init_ldap_from_sam (struct ldapsam_privates *ldap_state, } -/********************************************************************** -Connect to LDAP server and find the next available RID. -*********************************************************************/ -static uint32 check_nua_rid_is_avail(struct ldapsam_privates *ldap_state, uint32 top_rid) -{ - LDAPMessage *result; - uint32 final_rid = (top_rid & (~USER_RID_TYPE)) + RID_MULTIPLIER; - if (top_rid == 0) { - return 0; - } - - if (final_rid < ldap_state->low_nua_rid || final_rid > ldap_state->high_nua_rid) { - return 0; - } - - if (ldapsam_search_one_user_by_rid(ldap_state, final_rid, &result) != LDAP_SUCCESS) { - DEBUG(0, ("Cannot allocate NUA RID %d (0x%x), as the confirmation search failed!\n", final_rid, final_rid)); - return 0; - } - - if (ldap_count_entries(ldap_state->ldap_struct, result) != 0) { - DEBUG(0, ("Cannot allocate NUA RID %d (0x%x), as the RID is already in use!!\n", final_rid, final_rid)); - ldap_msgfree(result); - return 0; - } - - DEBUG(5, ("NUA RID %d (0x%x), declared valid\n", final_rid, final_rid)); - ldap_msgfree(result); - return final_rid; -} - -/********************************************************************** -Extract the RID from an LDAP entry -*********************************************************************/ -static uint32 entry_to_user_rid(struct ldapsam_privates *ldap_state, LDAPMessage *entry) { - uint32 rid; - SAM_ACCOUNT *user = NULL; - if (!NT_STATUS_IS_OK(pdb_init_sam(&user))) { - return 0; - } - - if (init_sam_from_ldap(ldap_state, user, entry)) { - rid = pdb_get_user_rid(user); - } else { - rid =0; - } - pdb_free_sam(&user); - if (rid >= ldap_state->low_nua_rid && rid <= ldap_state->high_nua_rid) { - return rid; - } - return 0; -} - - -/********************************************************************** -Connect to LDAP server and find the next available RID. -*********************************************************************/ -static uint32 search_top_nua_rid(struct ldapsam_privates *ldap_state) -{ - int rc; - pstring filter; - LDAPMessage *result; - LDAPMessage *entry; - char *final_filter = NULL; - uint32 top_rid = 0; - uint32 count; - uint32 rid; - - pstrcpy(filter, lp_ldap_filter()); - all_string_sub(filter, "%u", "*", sizeof(pstring)); - -#if 0 - asprintf(&final_filter, "(&(%s)(&(rid>=%d)(rid<=%d)))", filter, ldap_state->low_nua_rid, ldap_state->high_nua_rid); -#else - final_filter = strdup(filter); -#endif - DEBUG(2, ("ldapsam_get_next_available_nua_rid: searching for:[%s]\n", final_filter)); - - rc = ldapsam_search(ldap_state, lp_ldap_suffix(), - LDAP_SCOPE_SUBTREE, final_filter, attr, 0, - &result); - - if (rc != LDAP_SUCCESS) { - DEBUG(3, ("LDAP search failed! cannot find base for NUA RIDs: %s\n", ldap_err2string(rc))); - DEBUGADD(3, ("Query was: %s, %s\n", lp_ldap_suffix(), final_filter)); - - free(final_filter); - result = NULL; - return 0; - } - - count = ldap_count_entries(ldap_state->ldap_struct, result); - DEBUG(2, ("search_top_nua_rid: %d entries in the base!\n", count)); - - if (count == 0) { - DEBUG(3, ("LDAP search returned no records, assuming no non-unix-accounts present!: %s\n", ldap_err2string(rc))); - DEBUGADD(3, ("Query was: %s, %s\n", lp_ldap_suffix(), final_filter)); - free(final_filter); - ldap_msgfree(result); - result = NULL; - return ldap_state->low_nua_rid; - } - - free(final_filter); - entry = ldap_first_entry(ldap_state->ldap_struct,result); - - top_rid = entry_to_user_rid(ldap_state, entry); - - while ((entry = ldap_next_entry(ldap_state->ldap_struct, entry))) { - - rid = entry_to_user_rid(ldap_state, entry); - if (rid > top_rid) { - top_rid = rid; - } - } - - ldap_msgfree(result); - - if (top_rid < ldap_state->low_nua_rid) - top_rid = ldap_state->low_nua_rid; - - return top_rid; -} - -/********************************************************************** -Connect to LDAP server and find the next available RID. -*********************************************************************/ -static uint32 ldapsam_get_next_available_nua_rid(struct ldapsam_privates *ldap_state) { - uint32 next_nua_rid; - uint32 top_nua_rid; - - top_nua_rid = search_top_nua_rid(ldap_state); - - next_nua_rid = check_nua_rid_is_avail(ldap_state, - top_nua_rid); - - return next_nua_rid; -} /********************************************************************** Connect to LDAP server for password enumeration @@ -1700,9 +2100,9 @@ static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, BOOL update) pstrcpy(filter, lp_ldap_filter()); all_string_sub(filter, "%u", "*", sizeof(pstring)); - rc = ldapsam_search(ldap_state, lp_ldap_suffix(), - LDAP_SCOPE_SUBTREE, filter, attr, 0, - &ldap_state->result); + rc = ldapsam_search_suffix(ldap_state, + filter, attr, + &ldap_state->result); if (rc != LDAP_SUCCESS) { DEBUG(0, ("LDAP search failed: %s\n", ldap_err2string(rc))); @@ -1773,7 +2173,7 @@ static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, SAM_ACCOUNT LDAPMessage *entry; int count; - if (ldapsam_search_one_user_by_name(ldap_state, sname, &result) != LDAP_SUCCESS) { + if (ldapsam_search_suffix_by_name(ldap_state, sname, &result) != LDAP_SUCCESS) { return NT_STATUS_NO_SUCH_USER; } @@ -1807,31 +2207,43 @@ static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, SAM_ACCOUNT } /********************************************************************** -Get SAM_ACCOUNT entry from LDAP by rid +Get SAM_ACCOUNT entry from LDAP by SID *********************************************************************/ -static NTSTATUS ldapsam_getsampwrid(struct pdb_methods *my_methods, SAM_ACCOUNT *user, uint32 rid) +static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid) { NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data; LDAPMessage *result; LDAPMessage *entry; + fstring sid_string; int count; - - if (ldapsam_search_one_user_by_rid(ldap_state, rid, &result) != LDAP_SUCCESS) { - return NT_STATUS_NO_SUCH_USER; + + if (ldap_state->use_ntsid) { + if (ldapsam_search_suffix_by_sid(ldap_state, sid, &result) != LDAP_SUCCESS) { + return NT_STATUS_NO_SUCH_USER; + } + } else { + uint32 rid; + if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) { + return NT_STATUS_NO_SUCH_USER; + } + + if (ldapsam_search_suffix_by_rid(ldap_state, rid, &result) != LDAP_SUCCESS) { + return NT_STATUS_NO_SUCH_USER; + } } - + count = ldap_count_entries(ldap_state->ldap_struct, result); - + if (count < 1) { DEBUG(4, - ("We don't find this rid [%i] count=%d\n", rid, + ("We don't find this SID [%s] count=%d\n", sid_to_string(sid_string, sid), count)); return NT_STATUS_NO_SUCH_USER; } else if (count > 1) { DEBUG(1, - ("More than one user with rid [%i]. Failing. count=%d\n", rid, + ("More than one user with SID [%s]. Failing. count=%d\n", sid_to_string(sid_string, sid), count)); return NT_STATUS_NO_SUCH_USER; } @@ -1849,14 +2261,6 @@ static NTSTATUS ldapsam_getsampwrid(struct pdb_methods *my_methods, SAM_ACCOUNT ldap_msgfree(result); } return ret; -} - -static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid) -{ - uint32 rid; - if (!sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) - return NT_STATUS_NO_SUCH_USER; - return ldapsam_getsampwrid(my_methods, user, rid); } /******************************************************************** @@ -1892,7 +2296,7 @@ static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods, break; default: DEBUG(0,("Wrong LDAP operation type: %d!\n", ldap_op)); - return NT_STATUS_UNSUCCESSFUL; + return NT_STATUS_INVALID_PARAMETER; } if (rc!=LDAP_SUCCESS) { @@ -1986,7 +2390,7 @@ static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods, SAM_A { "lmPassword", "ntPassword", "pwdLastSet", "logonTime", "logoffTime", "kickoffTime", "pwdCanChange", "pwdMustChange", "acctFlags", "displayName", "smbHome", "homeDrive", "scriptPath", "profilePath", - "userWorkstations", "primaryGroupID", "domain", "rid", NULL }; + "userWorkstations", "primaryGroupID", "domain", "rid", "ntSid", NULL }; if (!sam_acct) { DEBUG(0, ("sam_acct was NULL!\n")); @@ -1997,7 +2401,7 @@ static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods, SAM_A DEBUG (3, ("Deleting user %s from LDAP.\n", sname)); - rc = ldapsam_search_one_user_by_name(ldap_state, sname, &result); + rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result); if (rc != LDAP_SUCCESS) { return NT_STATUS_NO_SUCH_USER; } @@ -2031,7 +2435,7 @@ static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, SAM_A LDAPMessage *entry; LDAPMod **mods; - rc = ldapsam_search_one_user_by_name(ldap_state, pdb_get_username(newpwd), &result); + rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result); if (rc != LDAP_SUCCESS) { return NT_STATUS_UNSUCCESSFUL; } @@ -2112,7 +2516,7 @@ static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, SAM_ACCO return NT_STATUS_INVALID_PARAMETER; } - rc = ldapsam_search_one_user_by_name (ldap_state, username, &result); + rc = ldapsam_search_suffix_by_name (ldap_state, username, &result); if (rc != LDAP_SUCCESS) { return NT_STATUS_UNSUCCESSFUL; } @@ -2126,7 +2530,7 @@ static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, SAM_ACCO ldap_msgfree(result); slprintf (filter, sizeof (filter) - 1, "uid=%s", username); - rc = ldapsam_search_one_user(ldap_state, filter, &result); + rc = ldapsam_search_suffix(ldap_state, filter, attr, &result); if (rc != LDAP_SUCCESS) { return NT_STATUS_UNSUCCESSFUL; } @@ -2699,7 +3103,7 @@ static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods, return NT_STATUS_OK; } -NTSTATUS pdb_init_ldapsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +static NTSTATUS pdb_init_ldapsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) { NTSTATUS nt_status; struct ldapsam_privates *ldap_state; @@ -2738,7 +3142,43 @@ NTSTATUS pdb_init_ldapsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, co if (location) { ldap_state->uri = talloc_strdup(pdb_context->mem_ctx, location); + } else { + ldap_state->uri = "ldap://localhost"; + } + + ldap_state->domain_name = talloc_strdup(pdb_context->mem_ctx, lp_workgroup()); + if (!ldap_state->domain_name) { + return NT_STATUS_NO_MEMORY; + } + + sid_copy(&ldap_state->domain_sid, get_global_sam_sid()); + + ldap_state->use_ntsid = True; + + (*pdb_method)->private_data = ldap_state; + + (*pdb_method)->free_private_data = free_private_data; + + return NT_STATUS_OK; +} + +static NTSTATUS pdb_init_ldapsam_compat(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +{ + NTSTATUS nt_status; + struct ldapsam_privates *ldap_state; + + if (!NT_STATUS_IS_OK(nt_status = pdb_init_ldapsam(pdb_context, pdb_method, location))) { + return nt_status; + } + + (*pdb_method)->name = "ldapsam_compat"; + + ldap_state = (*pdb_method)->private_data; + ldap_state->use_ntsid = False; + #ifdef WITH_LDAP_SAMCONFIG + if (location) { + ldap_state->uri = talloc_strdup(pdb_context->mem_ctx, location); } else { int ldap_port = lp_ldap_port(); @@ -2751,24 +3191,18 @@ NTSTATUS pdb_init_ldapsam(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, co if (!ldap_state->uri) { return NT_STATUS_NO_MEMORY; } -#else - } else { - ldap_state->uri = "ldap://localhost"; #endif } - (*pdb_method)->private_data = ldap_state; - - (*pdb_method)->free_private_data = free_private_data; - return NT_STATUS_OK; } -NTSTATUS pdb_init_ldapsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) +static NTSTATUS pdb_init_ldapsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method, const char *location) { NTSTATUS nt_status; struct ldapsam_privates *ldap_state; - uint32 low_nua_uid, high_nua_uid; + uint32 low_winbind_uid, high_winbind_uid; + uint32 low_winbind_gid, high_winbind_gid; if (!NT_STATUS_IS_OK(nt_status = pdb_init_ldapsam(pdb_context, pdb_method, location))) { return nt_status; @@ -2780,14 +3214,25 @@ NTSTATUS pdb_init_ldapsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method ldap_state->permit_non_unix_accounts = True; - if (!lp_non_unix_account_range(&low_nua_uid, &high_nua_uid)) { - DEBUG(0, ("cannot use ldapsam_nua without 'non unix account range' in smb.conf!\n")); + /* We know these uids can't turn up as allogorithmic RIDs */ + if (!lp_winbind_uid(&low_winbind_uid, &high_winbind_uid)) { + DEBUG(0, ("cannot use ldapsam_nua without 'winbind uid' range in smb.conf!\n")); + return NT_STATUS_UNSUCCESSFUL; + } + + /* We know these gids can't turn up as allogorithmic RIDs */ + if (!lp_winbind_gid(&low_winbind_gid, &high_winbind_gid)) { + DEBUG(0, ("cannot use ldapsam_nua without 'wibnind gid' range in smb.conf!\n")); return NT_STATUS_UNSUCCESSFUL; } - ldap_state->low_nua_rid=fallback_pdb_uid_to_user_rid(low_nua_uid); + ldap_state->low_allocated_user_rid=fallback_pdb_uid_to_user_rid(low_winbind_uid); + + ldap_state->high_allocated_user_rid=fallback_pdb_uid_to_user_rid(high_winbind_uid); + + ldap_state->low_allocated_group_rid=pdb_gid_to_group_rid(low_winbind_gid); - ldap_state->high_nua_rid=fallback_pdb_uid_to_user_rid(high_nua_uid); + ldap_state->high_allocated_group_rid=pdb_gid_to_group_rid(high_winbind_gid); return NT_STATUS_OK; } @@ -2795,6 +3240,7 @@ NTSTATUS pdb_init_ldapsam_nua(PDB_CONTEXT *pdb_context, PDB_METHODS **pdb_method int pdb_ldap_init(void) { smb_register_passdb("ldapsam", pdb_init_ldapsam, PASSDB_INTERFACE_VERSION); + smb_register_passdb("ldapsam_compat", pdb_init_ldapsam_compat, PASSDB_INTERFACE_VERSION); smb_register_passdb("ldapsam_nua", pdb_init_ldapsam_nua, PASSDB_INTERFACE_VERSION); return True; } |