diff options
Diffstat (limited to 'source3/nsswitch/idmap_ldap.c')
| -rw-r--r-- | source3/nsswitch/idmap_ldap.c | 1505 |
1 files changed, 0 insertions, 1505 deletions
diff --git a/source3/nsswitch/idmap_ldap.c b/source3/nsswitch/idmap_ldap.c deleted file mode 100644 index 3b63915b05..0000000000 --- a/source3/nsswitch/idmap_ldap.c +++ /dev/null @@ -1,1505 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - idmap LDAP backend - - Copyright (C) Tim Potter 2000 - Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003 - Copyright (C) Gerald Carter 2003 - Copyright (C) Simo Sorce 2003-2007 - - 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 3 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, see <http://www.gnu.org/licenses/>. -*/ - -#include "includes.h" -#include "winbindd.h" - -#undef DBGC_CLASS -#define DBGC_CLASS DBGC_IDMAP - -#include <lber.h> -#include <ldap.h> - -#include "smbldap.h" - -struct idmap_ldap_context { - struct smbldap_state *smbldap_state; - char *url; - char *suffix; - char *user_dn; - uint32_t filter_low_id, filter_high_id; /* Filter range */ - BOOL anon; -}; - -struct idmap_ldap_alloc_context { - struct smbldap_state *smbldap_state; - char *url; - char *suffix; - char *user_dn; - uid_t low_uid, high_uid; /* Range of uids */ - gid_t low_gid, high_gid; /* Range of gids */ - -}; - -#define CHECK_ALLOC_DONE(mem) do { \ - if (!mem) { \ - DEBUG(0, ("Out of memory!\n")); \ - ret = NT_STATUS_NO_MEMORY; \ - goto done; \ - } } while (0) - -/********************************************************************** - IDMAP ALLOC TDB BACKEND -**********************************************************************/ - -static struct idmap_ldap_alloc_context *idmap_alloc_ldap; - -/********************************************************************* - ********************************************************************/ - -static NTSTATUS get_credentials( TALLOC_CTX *mem_ctx, - struct smbldap_state *ldap_state, - const char *config_option, - struct idmap_domain *dom, - char **dn ) -{ - NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; - char *secret = NULL; - const char *tmp = NULL; - char *user_dn = NULL; - BOOL anon = False; - - /* assume anonymous if we don't have a specified user */ - - tmp = lp_parm_const_string(-1, config_option, "ldap_user_dn", NULL); - - if ( tmp ) { - if (!dom) { - /* only the alloc backend can pass in a NULL dom */ - secret = idmap_fetch_secret("ldap", True, - NULL, tmp); - } else { - secret = idmap_fetch_secret("ldap", False, - dom->name, tmp); - } - - if (!secret) { - DEBUG(0, ("get_credentials: Unable to fetch " - "auth credentials for %s in %s\n", - tmp, (dom==NULL)?"ALLOC":dom->name)); - ret = NT_STATUS_ACCESS_DENIED; - goto done; - } - *dn = talloc_strdup(mem_ctx, tmp); - CHECK_ALLOC_DONE(*dn); - } else { - if (!fetch_ldap_pw(&user_dn, &secret)) { - DEBUG(2, ("get_credentials: Failed to lookup ldap " - "bind creds. Using anonymous connection.\n")); - anon = True; - } else { - *dn = talloc_strdup(mem_ctx, user_dn); - SAFE_FREE( user_dn ); - CHECK_ALLOC_DONE(*dn); - } - } - - smbldap_set_creds(ldap_state, anon, *dn, secret); - ret = NT_STATUS_OK; - -done: - SAFE_FREE(secret); - - return ret; -} - - -/********************************************************************** - Verify the sambaUnixIdPool entry in the directory. -**********************************************************************/ - -static NTSTATUS verify_idpool(void) -{ - NTSTATUS ret; - TALLOC_CTX *ctx; - LDAPMessage *result = NULL; - LDAPMod **mods = NULL; - const char **attr_list; - char *filter; - int count; - int rc; - - if ( ! idmap_alloc_ldap) { - return NT_STATUS_UNSUCCESSFUL; - } - - ctx = talloc_new(idmap_alloc_ldap); - if ( ! ctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - filter = talloc_asprintf(ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL); - CHECK_ALLOC_DONE(filter); - - attr_list = get_attr_list(ctx, idpool_attr_list); - CHECK_ALLOC_DONE(attr_list); - - rc = smbldap_search(idmap_alloc_ldap->smbldap_state, - idmap_alloc_ldap->suffix, - LDAP_SCOPE_SUBTREE, - filter, - attr_list, - 0, - &result); - - if (rc != LDAP_SUCCESS) { - DEBUG(1, ("Unable to verify the idpool, " - "cannot continue initialization!\n")); - return NT_STATUS_UNSUCCESSFUL; - } - - count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, - result); - - ldap_msgfree(result); - - if ( count > 1 ) { - DEBUG(0,("Multiple entries returned from %s (base == %s)\n", - filter, idmap_alloc_ldap->suffix)); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - else if (count == 0) { - char *uid_str, *gid_str; - - uid_str = talloc_asprintf(ctx, "%lu", - (unsigned long)idmap_alloc_ldap->low_uid); - gid_str = talloc_asprintf(ctx, "%lu", - (unsigned long)idmap_alloc_ldap->low_gid); - - smbldap_set_mod(&mods, LDAP_MOD_ADD, - "objectClass", LDAP_OBJ_IDPOOL); - smbldap_set_mod(&mods, LDAP_MOD_ADD, - get_attr_key2string(idpool_attr_list, - LDAP_ATTR_UIDNUMBER), - uid_str); - smbldap_set_mod(&mods, LDAP_MOD_ADD, - get_attr_key2string(idpool_attr_list, - LDAP_ATTR_GIDNUMBER), - gid_str); - if (mods) { - rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, - idmap_alloc_ldap->suffix, - mods); - ldap_mods_free(mods, True); - } else { - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - } - - ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL; -done: - talloc_free(ctx); - return ret; -} - -/***************************************************************************** - Initialise idmap database. -*****************************************************************************/ - -static NTSTATUS idmap_ldap_alloc_init(const char *params) -{ - NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; - const char *range; - const char *tmp; - uid_t low_uid = 0; - uid_t high_uid = 0; - gid_t low_gid = 0; - gid_t high_gid = 0; - - /* Only do init if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - idmap_alloc_ldap = TALLOC_ZERO_P(NULL, struct idmap_ldap_alloc_context); - CHECK_ALLOC_DONE( idmap_alloc_ldap ); - - /* load ranges */ - - idmap_alloc_ldap->low_uid = 0; - idmap_alloc_ldap->high_uid = 0; - idmap_alloc_ldap->low_gid = 0; - idmap_alloc_ldap->high_gid = 0; - - range = lp_parm_const_string(-1, "idmap alloc config", "range", NULL); - if (range && range[0]) { - unsigned low_id, high_id; - - if (sscanf(range, "%u - %u", &low_id, &high_id) == 2) { - if (low_id < high_id) { - idmap_alloc_ldap->low_gid = low_id; - idmap_alloc_ldap->low_uid = low_id; - idmap_alloc_ldap->high_gid = high_id; - idmap_alloc_ldap->high_uid = high_id; - } else { - DEBUG(1, ("ERROR: invalid idmap alloc range " - "[%s]", range)); - } - } else { - DEBUG(1, ("ERROR: invalid syntax for idmap alloc " - "config:range [%s]", range)); - } - } - - if (lp_idmap_uid(&low_uid, &high_uid)) { - idmap_alloc_ldap->low_uid = low_uid; - idmap_alloc_ldap->high_uid = high_uid; - } - - if (lp_idmap_gid(&low_gid, &high_gid)) { - idmap_alloc_ldap->low_gid = low_gid; - idmap_alloc_ldap->high_gid= high_gid; - } - - if (idmap_alloc_ldap->high_uid <= idmap_alloc_ldap->low_uid) { - DEBUG(1, ("idmap uid range missing or invalid\n")); - DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n")); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - if (idmap_alloc_ldap->high_gid <= idmap_alloc_ldap->low_gid) { - DEBUG(1, ("idmap gid range missing or invalid\n")); - DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n")); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - if (params && *params) { - /* assume location is the only parameter */ - idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, params); - } else { - tmp = lp_parm_const_string(-1, "idmap alloc config", - "ldap_url", NULL); - - if ( ! tmp) { - DEBUG(1, ("ERROR: missing idmap ldap url\n")); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, tmp); - } - CHECK_ALLOC_DONE( idmap_alloc_ldap->url ); - - tmp = lp_parm_const_string(-1, "idmap alloc config", - "ldap_base_dn", NULL); - if ( ! tmp || ! *tmp) { - tmp = lp_ldap_idmap_suffix(); - if ( ! tmp) { - DEBUG(1, ("ERROR: missing idmap ldap suffix\n")); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - } - - idmap_alloc_ldap->suffix = talloc_strdup(idmap_alloc_ldap, tmp); - CHECK_ALLOC_DONE( idmap_alloc_ldap->suffix ); - - ret = smbldap_init(idmap_alloc_ldap, winbind_event_context(), - idmap_alloc_ldap->url, - &idmap_alloc_ldap->smbldap_state); - if (!NT_STATUS_IS_OK(ret)) { - DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", - idmap_alloc_ldap->url)); - goto done; - } - - ret = get_credentials( idmap_alloc_ldap, - idmap_alloc_ldap->smbldap_state, - "idmap alloc config", NULL, - &idmap_alloc_ldap->user_dn ); - if ( !NT_STATUS_IS_OK(ret) ) { - DEBUG(1,("idmap_ldap_alloc_init: Failed to get connection " - "credentials (%s)\n", nt_errstr(ret))); - goto done; - } - - /* see if the idmap suffix and sub entries exists */ - - ret = verify_idpool(); - - done: - if ( !NT_STATUS_IS_OK( ret ) ) - TALLOC_FREE( idmap_alloc_ldap ); - - return ret; -} - -/******************************** - Allocate a new uid or gid -********************************/ - -static NTSTATUS idmap_ldap_allocate_id(struct unixid *xid) -{ - TALLOC_CTX *ctx; - NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; - int rc = LDAP_SERVER_DOWN; - int count = 0; - LDAPMessage *result = NULL; - LDAPMessage *entry = NULL; - LDAPMod **mods = NULL; - char *id_str; - char *new_id_str; - char *filter = NULL; - const char *dn = NULL; - const char **attr_list; - const char *type; - - /* Only do query if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - if ( ! idmap_alloc_ldap) { - return NT_STATUS_UNSUCCESSFUL; - } - - ctx = talloc_new(idmap_alloc_ldap); - if ( ! ctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - /* get type */ - switch (xid->type) { - - case ID_TYPE_UID: - type = get_attr_key2string(idpool_attr_list, - LDAP_ATTR_UIDNUMBER); - break; - - case ID_TYPE_GID: - type = get_attr_key2string(idpool_attr_list, - LDAP_ATTR_GIDNUMBER); - break; - - default: - DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type)); - return NT_STATUS_INVALID_PARAMETER; - } - - filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL); - CHECK_ALLOC_DONE(filter); - - attr_list = get_attr_list(ctx, idpool_attr_list); - CHECK_ALLOC_DONE(attr_list); - - DEBUG(10, ("Search of the id pool (filter: %s)\n", filter)); - - rc = smbldap_search(idmap_alloc_ldap->smbldap_state, - idmap_alloc_ldap->suffix, - LDAP_SCOPE_SUBTREE, filter, - attr_list, 0, &result); - - if (rc != LDAP_SUCCESS) { - DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL)); - goto done; - } - - talloc_autofree_ldapmsg(ctx, result); - - count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, - result); - if (count != 1) { - DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL)); - goto done; - } - - entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct, - result); - - dn = smbldap_talloc_dn(ctx, - idmap_alloc_ldap->smbldap_state->ldap_struct, - entry); - if ( ! dn) { - goto done; - } - - if ( ! (id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct, - entry, type, ctx))) { - DEBUG(0,("%s attribute not found\n", type)); - goto done; - } - if ( ! id_str) { - DEBUG(0,("Out of memory\n")); - ret = NT_STATUS_NO_MEMORY; - goto done; - } - - xid->id = strtoul(id_str, NULL, 10); - - /* make sure we still have room to grow */ - - switch (xid->type) { - case ID_TYPE_UID: - if (xid->id > idmap_alloc_ldap->high_uid) { - DEBUG(0,("Cannot allocate uid above %lu!\n", - (unsigned long)idmap_alloc_ldap->high_uid)); - goto done; - } - break; - - case ID_TYPE_GID: - if (xid->id > idmap_alloc_ldap->high_gid) { - DEBUG(0,("Cannot allocate gid above %lu!\n", - (unsigned long)idmap_alloc_ldap->high_uid)); - goto done; - } - break; - - default: - /* impossible */ - goto done; - } - - new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id + 1); - if ( ! new_id_str) { - DEBUG(0,("Out of memory\n")); - ret = NT_STATUS_NO_MEMORY; - goto done; - } - - smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str); - smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str); - - if (mods == NULL) { - DEBUG(0,("smbldap_set_mod() failed.\n")); - goto done; - } - - DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n", - id_str, new_id_str)); - - rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods); - - ldap_mods_free(mods, True); - - if (rc != LDAP_SUCCESS) { - DEBUG(1,("Failed to allocate new %s. " - "smbldap_modify() failed.\n", type)); - goto done; - } - - ret = NT_STATUS_OK; - -done: - talloc_free(ctx); - return ret; -} - -/********************************** - Get current highest id. -**********************************/ - -static NTSTATUS idmap_ldap_get_hwm(struct unixid *xid) -{ - TALLOC_CTX *memctx; - NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; - int rc = LDAP_SERVER_DOWN; - int count = 0; - LDAPMessage *result = NULL; - LDAPMessage *entry = NULL; - char *id_str; - char *filter = NULL; - const char **attr_list; - const char *type; - - /* Only do query if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - if ( ! idmap_alloc_ldap) { - return NT_STATUS_UNSUCCESSFUL; - } - - memctx = talloc_new(idmap_alloc_ldap); - if ( ! memctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - /* get type */ - switch (xid->type) { - - case ID_TYPE_UID: - type = get_attr_key2string(idpool_attr_list, - LDAP_ATTR_UIDNUMBER); - break; - - case ID_TYPE_GID: - type = get_attr_key2string(idpool_attr_list, - LDAP_ATTR_GIDNUMBER); - break; - - default: - DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type)); - return NT_STATUS_INVALID_PARAMETER; - } - - filter = talloc_asprintf(memctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL); - CHECK_ALLOC_DONE(filter); - - attr_list = get_attr_list(memctx, idpool_attr_list); - CHECK_ALLOC_DONE(attr_list); - - rc = smbldap_search(idmap_alloc_ldap->smbldap_state, - idmap_alloc_ldap->suffix, - LDAP_SCOPE_SUBTREE, filter, - attr_list, 0, &result); - - if (rc != LDAP_SUCCESS) { - DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL)); - goto done; - } - - talloc_autofree_ldapmsg(memctx, result); - - count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, - result); - if (count != 1) { - DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL)); - goto done; - } - - entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct, - result); - - id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct, - entry, type, memctx); - if ( ! id_str) { - DEBUG(0,("%s attribute not found\n", type)); - goto done; - } - if ( ! id_str) { - DEBUG(0,("Out of memory\n")); - ret = NT_STATUS_NO_MEMORY; - goto done; - } - - xid->id = strtoul(id_str, NULL, 10); - - ret = NT_STATUS_OK; -done: - talloc_free(memctx); - return ret; -} -/********************************** - Set highest id. -**********************************/ - -static NTSTATUS idmap_ldap_set_hwm(struct unixid *xid) -{ - TALLOC_CTX *ctx; - NTSTATUS ret = NT_STATUS_UNSUCCESSFUL; - int rc = LDAP_SERVER_DOWN; - int count = 0; - LDAPMessage *result = NULL; - LDAPMessage *entry = NULL; - LDAPMod **mods = NULL; - char *new_id_str; - char *filter = NULL; - const char *dn = NULL; - const char **attr_list; - const char *type; - - /* Only do query if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - if ( ! idmap_alloc_ldap) { - return NT_STATUS_UNSUCCESSFUL; - } - - ctx = talloc_new(idmap_alloc_ldap); - if ( ! ctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - /* get type */ - switch (xid->type) { - - case ID_TYPE_UID: - type = get_attr_key2string(idpool_attr_list, - LDAP_ATTR_UIDNUMBER); - break; - - case ID_TYPE_GID: - type = get_attr_key2string(idpool_attr_list, - LDAP_ATTR_GIDNUMBER); - break; - - default: - DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type)); - return NT_STATUS_INVALID_PARAMETER; - } - - filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL); - CHECK_ALLOC_DONE(filter); - - attr_list = get_attr_list(ctx, idpool_attr_list); - CHECK_ALLOC_DONE(attr_list); - - rc = smbldap_search(idmap_alloc_ldap->smbldap_state, - idmap_alloc_ldap->suffix, - LDAP_SCOPE_SUBTREE, filter, - attr_list, 0, &result); - - if (rc != LDAP_SUCCESS) { - DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL)); - goto done; - } - - talloc_autofree_ldapmsg(ctx, result); - - count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, - result); - if (count != 1) { - DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL)); - goto done; - } - - entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct, - result); - - dn = smbldap_talloc_dn(ctx, - idmap_alloc_ldap->smbldap_state->ldap_struct, - entry); - if ( ! dn) { - goto done; - } - - new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id); - if ( ! new_id_str) { - DEBUG(0,("Out of memory\n")); - ret = NT_STATUS_NO_MEMORY; - goto done; - } - - smbldap_set_mod(&mods, LDAP_MOD_REPLACE, type, new_id_str); - - if (mods == NULL) { - DEBUG(0,("smbldap_set_mod() failed.\n")); - goto done; - } - - rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods); - - ldap_mods_free(mods, True); - - if (rc != LDAP_SUCCESS) { - DEBUG(1,("Failed to allocate new %s. " - "smbldap_modify() failed.\n", type)); - goto done; - } - - ret = NT_STATUS_OK; - -done: - talloc_free(ctx); - return ret; -} - -/********************************** - Close idmap ldap alloc -**********************************/ - -static NTSTATUS idmap_ldap_alloc_close(void) -{ - if (idmap_alloc_ldap) { - smbldap_free_struct(&idmap_alloc_ldap->smbldap_state); - DEBUG(5,("The connection to the LDAP server was closed\n")); - /* maybe free the results here --metze */ - TALLOC_FREE(idmap_alloc_ldap); - } - return NT_STATUS_OK; -} - - -/********************************************************************** - IDMAP MAPPING LDAP BACKEND -**********************************************************************/ - -static int idmap_ldap_close_destructor(struct idmap_ldap_context *ctx) -{ - smbldap_free_struct(&ctx->smbldap_state); - DEBUG(5,("The connection to the LDAP server was closed\n")); - /* maybe free the results here --metze */ - - return 0; -} - -/******************************** - Initialise idmap database. -********************************/ - -static NTSTATUS idmap_ldap_db_init(struct idmap_domain *dom) -{ - NTSTATUS ret; - struct idmap_ldap_context *ctx = NULL; - char *config_option = NULL; - const char *range = NULL; - const char *tmp = NULL; - - /* Only do init if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - ctx = TALLOC_ZERO_P(dom, struct idmap_ldap_context); - if ( ! ctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - config_option = talloc_asprintf(ctx, "idmap config %s", dom->name); - if ( ! config_option) { - DEBUG(0, ("Out of memory!\n")); - ret = NT_STATUS_NO_MEMORY; - goto done; - } - - /* load ranges */ - range = lp_parm_const_string(-1, config_option, "range", NULL); - if (range && range[0]) { - if ((sscanf(range, "%u - %u", &ctx->filter_low_id, - &ctx->filter_high_id) != 2) || - (ctx->filter_low_id > ctx->filter_high_id)) { - DEBUG(1, ("ERROR: invalid filter range [%s]", range)); - ctx->filter_low_id = 0; - ctx->filter_high_id = 0; - } - } - - if (dom->params && *(dom->params)) { - /* assume location is the only parameter */ - ctx->url = talloc_strdup(ctx, dom->params); - } else { - tmp = lp_parm_const_string(-1, config_option, "ldap_url", NULL); - - if ( ! tmp) { - DEBUG(1, ("ERROR: missing idmap ldap url\n")); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - ctx->url = talloc_strdup(ctx, tmp); - } - CHECK_ALLOC_DONE(ctx->url); - - tmp = lp_parm_const_string(-1, config_option, "ldap_base_dn", NULL); - if ( ! tmp || ! *tmp) { - tmp = lp_ldap_idmap_suffix(); - if ( ! tmp) { - DEBUG(1, ("ERROR: missing idmap ldap suffix\n")); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - } - - ctx->suffix = talloc_strdup(ctx, tmp); - CHECK_ALLOC_DONE(ctx->suffix); - - ret = smbldap_init(ctx, winbind_event_context(), ctx->url, - &ctx->smbldap_state); - if (!NT_STATUS_IS_OK(ret)) { - DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx->url)); - goto done; - } - - ret = get_credentials( ctx, ctx->smbldap_state, config_option, - dom, &ctx->user_dn ); - if ( !NT_STATUS_IS_OK(ret) ) { - DEBUG(1,("idmap_ldap_db_init: Failed to get connection " - "credentials (%s)\n", nt_errstr(ret))); - goto done; - } - - /* set the destructor on the context, so that resource are properly - freed if the contexts is released */ - - talloc_set_destructor(ctx, idmap_ldap_close_destructor); - - dom->private_data = ctx; - dom->initialized = True; - - talloc_free(config_option); - return NT_STATUS_OK; - -/*failed */ -done: - talloc_free(ctx); - return ret; -} - -/* max number of ids requested per batch query */ -#define IDMAP_LDAP_MAX_IDS 30 - -/********************************** - lookup a set of unix ids. -**********************************/ - -/* this function searches up to IDMAP_LDAP_MAX_IDS entries - * in maps for a match */ -static struct id_map *find_map_by_id(struct id_map **maps, - enum id_type type, - uint32_t id) -{ - int i; - - for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) { - if (maps[i] == NULL) { /* end of the run */ - return NULL; - } - if ((maps[i]->xid.type == type) && (maps[i]->xid.id == id)) { - return maps[i]; - } - } - - return NULL; -} - -static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom, - struct id_map **ids) -{ - NTSTATUS ret; - TALLOC_CTX *memctx; - struct idmap_ldap_context *ctx; - LDAPMessage *result = NULL; - const char *uidNumber; - const char *gidNumber; - const char **attr_list; - char *filter = NULL; - BOOL multi = False; - int idx = 0; - int bidx = 0; - int count; - int rc; - int i; - - /* Only do query if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - /* Initilization my have been deferred because we were offline */ - if ( ! dom->initialized) { - ret = idmap_ldap_db_init(dom); - if ( ! NT_STATUS_IS_OK(ret)) { - return ret; - } - } - - ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context); - - memctx = talloc_new(ctx); - if ( ! memctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER); - gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER); - - attr_list = get_attr_list(memctx, sidmap_attr_list); - - if ( ! ids[1]) { - /* if we are requested just one mapping use the simple filter */ - - filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%lu))", - LDAP_OBJ_IDMAP_ENTRY, - (ids[0]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber, - (unsigned long)ids[0]->xid.id); - CHECK_ALLOC_DONE(filter); - DEBUG(10, ("Filter: [%s]\n", filter)); - } else { - /* multiple mappings */ - multi = True; - } - -again: - if (multi) { - - talloc_free(filter); - filter = talloc_asprintf(memctx, - "(&(objectClass=%s)(|", - LDAP_OBJ_IDMAP_ENTRY); - CHECK_ALLOC_DONE(filter); - - bidx = idx; - for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) { - filter = talloc_asprintf_append(filter, "(%s=%lu)", - (ids[idx]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber, - (unsigned long)ids[idx]->xid.id); - CHECK_ALLOC_DONE(filter); - } - filter = talloc_asprintf_append(filter, "))"); - CHECK_ALLOC_DONE(filter); - DEBUG(10, ("Filter: [%s]\n", filter)); - } else { - bidx = 0; - idx = 1; - } - - rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE, - filter, attr_list, 0, &result); - - if (rc != LDAP_SUCCESS) { - DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc))); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result); - - if (count == 0) { - DEBUG(10, ("NO SIDs found\n")); - } - - for (i = 0; i < count; i++) { - LDAPMessage *entry = NULL; - char *sidstr = NULL; - char *tmp = NULL; - enum id_type type; - struct id_map *map; - uint32_t id; - - if (i == 0) { /* first entry */ - entry = ldap_first_entry(ctx->smbldap_state->ldap_struct, - result); - } else { /* following ones */ - entry = ldap_next_entry(ctx->smbldap_state->ldap_struct, - entry); - } - if ( ! entry) { - DEBUG(2, ("ERROR: Unable to fetch ldap entries " - "from results\n")); - break; - } - - /* first check if the SID is present */ - sidstr = smbldap_talloc_single_attribute( - ctx->smbldap_state->ldap_struct, - entry, LDAP_ATTRIBUTE_SID, memctx); - if ( ! sidstr) { /* no sid, skip entry */ - DEBUG(2, ("WARNING SID not found on entry\n")); - continue; - } - - /* now try to see if it is a uid, if not try with a gid - * (gid is more common, but in case both uidNumber and - * gidNumber are returned the SID is mapped to the uid - *not the gid) */ - type = ID_TYPE_UID; - tmp = smbldap_talloc_single_attribute( - ctx->smbldap_state->ldap_struct, - entry, uidNumber, memctx); - if ( ! tmp) { - type = ID_TYPE_GID; - tmp = smbldap_talloc_single_attribute( - ctx->smbldap_state->ldap_struct, - entry, gidNumber, memctx); - } - if ( ! tmp) { /* wow very strange entry, how did it match ? */ - DEBUG(5, ("Unprobable match on (%s), no uidNumber, " - "nor gidNumber returned\n", sidstr)); - TALLOC_FREE(sidstr); - continue; - } - - id = strtoul(tmp, NULL, 10); - if ((id == 0) || - (ctx->filter_low_id && (id < ctx->filter_low_id)) || - (ctx->filter_high_id && (id > ctx->filter_high_id))) { - DEBUG(5, ("Requested id (%u) out of range (%u - %u). " - "Filtered!\n", id, - ctx->filter_low_id, ctx->filter_high_id)); - TALLOC_FREE(sidstr); - TALLOC_FREE(tmp); - continue; - } - TALLOC_FREE(tmp); - - map = find_map_by_id(&ids[bidx], type, id); - if (!map) { - DEBUG(2, ("WARNING: couldn't match sid (%s) " - "with requested ids\n", sidstr)); - TALLOC_FREE(sidstr); - continue; - } - - if ( ! string_to_sid(map->sid, sidstr)) { - DEBUG(2, ("ERROR: Invalid SID on entry\n")); - TALLOC_FREE(sidstr); - continue; - } - TALLOC_FREE(sidstr); - - /* mapped */ - map->status = ID_MAPPED; - - DEBUG(10, ("Mapped %s -> %lu (%d)\n", - sid_string_static(map->sid), - (unsigned long)map->xid.id, map->xid.type)); - } - - /* free the ldap results */ - if (result) { - ldap_msgfree(result); - result = NULL; - } - - if (multi && ids[idx]) { /* still some values to map */ - goto again; - } - - ret = NT_STATUS_OK; - - /* mark all unknwon/expired ones as unmapped */ - for (i = 0; ids[i]; i++) { - if (ids[i]->status != ID_MAPPED) - ids[i]->status = ID_UNMAPPED; - } - -done: - talloc_free(memctx); - return ret; -} - -/********************************** - lookup a set of sids. -**********************************/ - -/* this function searches up to IDMAP_LDAP_MAX_IDS entries - * in maps for a match */ -static struct id_map *find_map_by_sid(struct id_map **maps, DOM_SID *sid) -{ - int i; - - for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) { - if (maps[i] == NULL) { /* end of the run */ - return NULL; - } - if (sid_equal(maps[i]->sid, sid)) { - return maps[i]; - } - } - - return NULL; -} - -static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom, - struct id_map **ids) -{ - LDAPMessage *entry = NULL; - NTSTATUS ret; - TALLOC_CTX *memctx; - struct idmap_ldap_context *ctx; - LDAPMessage *result = NULL; - const char *uidNumber; - const char *gidNumber; - const char **attr_list; - char *filter = NULL; - BOOL multi = False; - int idx = 0; - int bidx = 0; - int count; - int rc; - int i; - - /* Only do query if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - /* Initilization my have been deferred because we were offline */ - if ( ! dom->initialized) { - ret = idmap_ldap_db_init(dom); - if ( ! NT_STATUS_IS_OK(ret)) { - return ret; - } - } - - ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context); - - memctx = talloc_new(ctx); - if ( ! memctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER); - gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER); - - attr_list = get_attr_list(memctx, sidmap_attr_list); - - if ( ! ids[1]) { - /* if we are requested just one mapping use the simple filter */ - - filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))", - LDAP_OBJ_IDMAP_ENTRY, - LDAP_ATTRIBUTE_SID, - sid_string_static(ids[0]->sid)); - CHECK_ALLOC_DONE(filter); - DEBUG(10, ("Filter: [%s]\n", filter)); - } else { - /* multiple mappings */ - multi = True; - } - -again: - if (multi) { - - TALLOC_FREE(filter); - filter = talloc_asprintf(memctx, - "(&(objectClass=%s)(|", - LDAP_OBJ_IDMAP_ENTRY); - CHECK_ALLOC_DONE(filter); - - bidx = idx; - for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) { - filter = talloc_asprintf_append(filter, "(%s=%s)", - LDAP_ATTRIBUTE_SID, - sid_string_static(ids[idx]->sid)); - CHECK_ALLOC_DONE(filter); - } - filter = talloc_asprintf_append(filter, "))"); - CHECK_ALLOC_DONE(filter); - DEBUG(10, ("Filter: [%s]", filter)); - } else { - bidx = 0; - idx = 1; - } - - rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE, - filter, attr_list, 0, &result); - - if (rc != LDAP_SUCCESS) { - DEBUG(3,("Failure looking up sids (%s)\n", - ldap_err2string(rc))); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result); - - if (count == 0) { - DEBUG(10, ("NO SIDs found\n")); - } - - for (i = 0; i < count; i++) { - char *sidstr = NULL; - char *tmp = NULL; - enum id_type type; - struct id_map *map; - DOM_SID sid; - uint32_t id; - - if (i == 0) { /* first entry */ - entry = ldap_first_entry(ctx->smbldap_state->ldap_struct, - result); - } else { /* following ones */ - entry = ldap_next_entry(ctx->smbldap_state->ldap_struct, - entry); - } - if ( ! entry) { - DEBUG(2, ("ERROR: Unable to fetch ldap entries " - "from results\n")); - break; - } - - /* first check if the SID is present */ - sidstr = smbldap_talloc_single_attribute( - ctx->smbldap_state->ldap_struct, - entry, LDAP_ATTRIBUTE_SID, memctx); - if ( ! sidstr) { /* no sid ??, skip entry */ - DEBUG(2, ("WARNING SID not found on entry\n")); - continue; - } - - if ( ! string_to_sid(&sid, sidstr)) { - DEBUG(2, ("ERROR: Invalid SID on entry\n")); - TALLOC_FREE(sidstr); - continue; - } - - map = find_map_by_sid(&ids[bidx], &sid); - if (!map) { - DEBUG(2, ("WARNING: couldn't find entry sid (%s) " - "in ids", sidstr)); - TALLOC_FREE(sidstr); - continue; - } - - TALLOC_FREE(sidstr); - - /* now try to see if it is a uid, if not try with a gid - * (gid is more common, but in case both uidNumber and - * gidNumber are returned the SID is mapped to the uid - * not the gid) */ - type = ID_TYPE_UID; - tmp = smbldap_talloc_single_attribute( - ctx->smbldap_state->ldap_struct, - entry, uidNumber, memctx); - if ( ! tmp) { - type = ID_TYPE_GID; - tmp = smbldap_talloc_single_attribute( - ctx->smbldap_state->ldap_struct, - entry, gidNumber, memctx); - } - if ( ! tmp) { /* no ids ?? */ - DEBUG(5, ("no uidNumber, " - "nor gidNumber attributes found\n")); - continue; - } - - id = strtoul(tmp, NULL, 10); - if ((id == 0) || - (ctx->filter_low_id && (id < ctx->filter_low_id)) || - (ctx->filter_high_id && (id > ctx->filter_high_id))) { - DEBUG(5, ("Requested id (%u) out of range (%u - %u). " - "Filtered!\n", id, - ctx->filter_low_id, ctx->filter_high_id)); - TALLOC_FREE(tmp); - continue; - } - TALLOC_FREE(tmp); - - /* mapped */ - map->xid.type = type; - map->xid.id = id; - map->status = ID_MAPPED; - - DEBUG(10, ("Mapped %s -> %lu (%d)\n", - sid_string_static(map->sid), - (unsigned long)map->xid.id, map->xid.type)); - } - - /* free the ldap results */ - if (result) { - ldap_msgfree(result); - result = NULL; - } - - if (multi && ids[idx]) { /* still some values to map */ - goto again; - } - - ret = NT_STATUS_OK; - - /* mark all unknwon/expired ones as unmapped */ - for (i = 0; ids[i]; i++) { - if (ids[i]->status != ID_MAPPED) - ids[i]->status = ID_UNMAPPED; - } - -done: - talloc_free(memctx); - return ret; -} - -/********************************** - set a mapping. -**********************************/ - -/* TODO: change this: This function cannot be called to modify a mapping, - * only set a new one */ - -static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom, - const struct id_map *map) -{ - NTSTATUS ret; - TALLOC_CTX *memctx; - struct idmap_ldap_context *ctx; - LDAPMessage *entry = NULL; - LDAPMod **mods = NULL; - const char *type; - char *id_str; - char *sid; - char *dn; - int rc = -1; - - /* Only do query if we are online */ - if (idmap_is_offline()) { - return NT_STATUS_FILE_IS_OFFLINE; - } - - /* Initilization my have been deferred because we were offline */ - if ( ! dom->initialized) { - ret = idmap_ldap_db_init(dom); - if ( ! NT_STATUS_IS_OK(ret)) { - return ret; - } - } - - ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context); - - switch(map->xid.type) { - case ID_TYPE_UID: - type = get_attr_key2string(sidmap_attr_list, - LDAP_ATTR_UIDNUMBER); - break; - - case ID_TYPE_GID: - type = get_attr_key2string(sidmap_attr_list, - LDAP_ATTR_GIDNUMBER); - break; - - default: - return NT_STATUS_INVALID_PARAMETER; - } - - memctx = talloc_new(ctx); - if ( ! memctx) { - DEBUG(0, ("Out of memory!\n")); - return NT_STATUS_NO_MEMORY; - } - - id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id); - CHECK_ALLOC_DONE(id_str); - - sid = talloc_strdup(memctx, sid_string_static(map->sid)); - CHECK_ALLOC_DONE(sid); - - dn = talloc_asprintf(memctx, "%s=%s,%s", - get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID), - sid, - ctx->suffix); - CHECK_ALLOC_DONE(dn); - - smbldap_set_mod(&mods, LDAP_MOD_ADD, - "objectClass", LDAP_OBJ_IDMAP_ENTRY); - - smbldap_make_mod(ctx->smbldap_state->ldap_struct, - entry, &mods, type, id_str); - - smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods, - get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID), - sid); - - if ( ! mods) { - DEBUG(2, ("ERROR: No mods?\n")); - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - /* TODO: remove conflicting mappings! */ - - smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY); - - DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid, id_str)); - - rc = smbldap_add(ctx->smbldap_state, dn, mods); - ldap_mods_free(mods, True); - - if (rc != LDAP_SUCCESS) { - char *ld_error = NULL; - ldap_get_option(ctx->smbldap_state->ldap_struct, - LDAP_OPT_ERROR_STRING, &ld_error); - DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu " - "mapping [%s]\n", sid, - (unsigned long)map->xid.id, type)); - DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n", - ld_error ? ld_error : "(NULL)", ldap_err2string (rc))); - if (ld_error) { - ldap_memfree(ld_error); - } - ret = NT_STATUS_UNSUCCESSFUL; - goto done; - } - - DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to " - "%lu [%s]\n", sid, (unsigned long)map->xid.id, type)); - - ret = NT_STATUS_OK; - -done: - talloc_free(memctx); - return ret; -} - -/********************************** - Close the idmap ldap instance -**********************************/ - -static NTSTATUS idmap_ldap_close(struct idmap_domain *dom) -{ - struct idmap_ldap_context *ctx; - - if (dom->private_data) { - ctx = talloc_get_type(dom->private_data, - struct idmap_ldap_context); - - talloc_free(ctx); - dom->private_data = NULL; - } - - return NT_STATUS_OK; -} - -static struct idmap_methods idmap_ldap_methods = { - - .init = idmap_ldap_db_init, - .unixids_to_sids = idmap_ldap_unixids_to_sids, - .sids_to_unixids = idmap_ldap_sids_to_unixids, - .set_mapping = idmap_ldap_set_mapping, - .close_fn = idmap_ldap_close -}; - -static struct idmap_alloc_methods idmap_ldap_alloc_methods = { - - .init = idmap_ldap_alloc_init, - .allocate_id = idmap_ldap_allocate_id, - .get_id_hwm = idmap_ldap_get_hwm, - .set_id_hwm = idmap_ldap_set_hwm, - .close_fn = idmap_ldap_alloc_close, - /* .dump_data = TODO */ -}; - -NTSTATUS idmap_alloc_ldap_init(void) -{ - return smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "ldap", - &idmap_ldap_alloc_methods); -} - -NTSTATUS idmap_ldap_init(void) -{ - NTSTATUS ret; - - /* FIXME: bad hack to actually register also the alloc_ldap module - * without changining configure.in */ - ret = idmap_alloc_ldap_init(); - if (! NT_STATUS_IS_OK(ret)) { - return ret; - } - return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap", - &idmap_ldap_methods); -} - |