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idmap: Map SIDs to unixids instead of uids/gids

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This commit is contained in:
Kai Blin 2008-03-06 00:52:37 +01:00
parent f56912e3b5
commit 73ac7c4a1c
9 changed files with 528 additions and 592 deletions
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2
source/winbind/config.mk
View File

@ -16,6 +16,8 @@ OBJ_FILES = \
wb_dom_info_trusted.o \
wb_sid2domain.o \
wb_name2domain.o \
wb_sids2xids.o \
wb_xids2sids.o \
wb_gid2sid.o \
wb_sid2uid.o \
wb_sid2gid.o \

738
source/winbind/idmap.c
View File

@ -1,7 +1,7 @@
/*
Unix SMB/CIFS implementation.
Map SIDs to uids/gids and back
Map SIDs to unixids and back
Copyright (C) Kai Blin 2008
@ -177,39 +177,46 @@ struct idmap_context *idmap_init(TALLOC_CTX *mem_ctx,
return NULL;
}
idmap_ctx->unix_groups_sid = dom_sid_parse_talloc(mem_ctx, "S-1-22-2");
if (idmap_ctx->unix_groups_sid == NULL) {
return NULL;
}
idmap_ctx->unix_users_sid = dom_sid_parse_talloc(mem_ctx, "S-1-22-1");
if (idmap_ctx->unix_users_sid == NULL) {
return NULL;
}
return idmap_ctx;
}
/**
* Convert a uid to the corresponding SID
* Convert an unixid to the corresponding SID
*
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context the memory for the struct dom_sid is allocated
* from.
* \param uid Unix uid to map to a SID
* \param sid Pointer that will take the struct dom_sid pointer if the mapping
* \param unixid pointer to a unixid struct to convert
* \param sid pointer that will take the struct dom_sid pointer if the mapping
* succeeds.
* \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping not
* possible or some other NTSTATUS that is more descriptive on failure.
*/
NTSTATUS idmap_uid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
const uid_t uid, struct dom_sid **sid)
NTSTATUS idmap_xid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
const struct unixid *unixid, struct dom_sid **sid)
{
int ret;
NTSTATUS status = NT_STATUS_NONE_MAPPED;
struct ldb_context *ldb = idmap_ctx->ldb_ctx;
struct ldb_message *msg;
struct ldb_result *res = NULL;
int trans = -1;
uid_t low, high;
char *sid_string, *uid_string;
struct dom_sid *unix_users_sid, *new_sid;
uint32_t low, high;
struct dom_sid *unix_sid, *new_sid;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
NULL, "(&(objectClass=sidMap)(uidNumber=%u))",
uid);
NULL, "(&(objectClass=sidMap)(xidNumber=%u))",
unixid->id);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
@ -228,19 +235,13 @@ NTSTATUS idmap_uid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
return NT_STATUS_OK;
}
DEBUG(6, ("uid not found in idmap db, trying to allocate SID.\n"));
trans = ldb_transaction_start(ldb);
if (trans != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
DEBUG(6, ("xid not found in idmap db, trying to allocate SID.\n"));
/* Now redo the search to make sure noone added a mapping for that SID
* while we weren't looking.*/
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
NULL, "(&(objectClass=sidMap)(uidNumber=%u))",
uid);
NULL, "(&(objectClass=sidMap)(xidNumber=%u))",
unixid->id);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
@ -260,285 +261,58 @@ NTSTATUS idmap_uid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
goto failed;
}
if (uid >= low && uid <= high) {
/* An existing user would have been mapped before */
status = NT_STATUS_NO_SUCH_USER;
if (unixid->id >= low && unixid->id <= high) {
/* An existing xid would have been mapped before */
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
/* For local users, we just create a rid = uid +1, so root doesn't end
* up with a 0 rid */
unix_users_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-1");
if (unix_users_sid == NULL) {
if (unixid->type == ID_TYPE_UID) {
unix_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-1");
} else {
unix_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-2");
}
if (unix_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
new_sid = dom_sid_add_rid(mem_ctx, unix_users_sid, uid + 1);
new_sid = dom_sid_add_rid(mem_ctx, unix_sid, unixid->id + 1);
if (new_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
sid_string = dom_sid_string(tmp_ctx, new_sid);
if (sid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
uid_string = talloc_asprintf(tmp_ctx, "%u", uid);
if (uid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
msg = ldb_msg_new(tmp_ctx);
if (msg == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
msg->dn = ldb_dn_new_fmt(tmp_ctx, ldb, "CN=%s", sid_string);
if (msg->dn == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
ret = ldb_msg_add_string(msg, "uidNumber", uid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = idmap_msg_add_dom_sid(idmap_ctx, tmp_ctx, msg, "objectSid",
new_sid);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(msg, "objectClass", "sidMap");
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(msg, "cn", sid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_add(ldb, msg);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
trans = ldb_transaction_commit(ldb);
if (trans != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
*sid = new_sid;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
failed:
if (trans == LDB_SUCCESS) ldb_transaction_cancel(ldb);
talloc_free(tmp_ctx);
return status;
}
/**
* Map a Unix gid to the corresponding SID
*
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context the memory for the struct dom_sid is allocated
* from.
* \param gid Unix gid to map to a SID
* \param sid Pointer that will take the struct dom_sid pointer if mapping
* succeeds.
* \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping not
* possible or some other NTSTATUS that is more descriptive on failure.
*/
NTSTATUS idmap_gid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
const gid_t gid, struct dom_sid **sid)
{
int ret;
NTSTATUS status = NT_STATUS_NONE_MAPPED;
struct ldb_context *ldb = idmap_ctx->ldb_ctx;
struct ldb_message *msg;
struct ldb_result *res = NULL;
int trans = -1;
gid_t low, high;
char *sid_string, *gid_string;
struct dom_sid *unix_groups_sid, *new_sid;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
NULL, "(&(objectClass=sidMap)(gidNumber=%u))", gid);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
if (res->count == 1) {
*sid = idmap_msg_get_dom_sid(mem_ctx, res->msgs[0],
"objectSid");
if (*sid == NULL) {
DEBUG(1, ("Failed to get sid from db: %u\n", ret));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
/* No change, so cancel the transaction */
ldb_transaction_cancel(ldb);
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
DEBUG(6, ("gid not found in idmap db, trying to allocate SID.\n"));
trans = ldb_transaction_start(ldb);
if (trans != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
/* Now redo the search to make sure noone added a mapping for that SID
* while we weren't looking.*/
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
NULL, "(&(objectClass=sidMap)(gidNumber=%u))",
gid);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
if (res->count > 0) {
DEBUG(1, ("sidMap modified while trying to add a mapping.\n"));
status = NT_STATUS_RETRY;
goto failed;
}
ret = idmap_get_bounds(idmap_ctx, &low, &high);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Failed to get id bounds from db: %u\n", ret));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
if (gid >= low && gid <= high) {
/* An existing group would have been mapped before */
status = NT_STATUS_NO_SUCH_USER;
goto failed;
}
/* For local groups, we just create a rid = gid +1, so root doesn't end
* up with a 0 rid */
unix_groups_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-2");
if (unix_groups_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
new_sid = dom_sid_add_rid(mem_ctx, unix_groups_sid, gid + 1);
if (new_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
sid_string = dom_sid_string(tmp_ctx, new_sid);
if (sid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
gid_string = talloc_asprintf(tmp_ctx, "%u", gid);
if (gid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
msg = ldb_msg_new(tmp_ctx);
if (msg == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
msg->dn = ldb_dn_new_fmt(tmp_ctx, ldb, "CN=%s", sid_string);
if (msg->dn == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
ret = ldb_msg_add_string(msg, "gidNumber", gid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = idmap_msg_add_dom_sid(idmap_ctx, tmp_ctx, msg, "objectSid",
new_sid);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(msg, "objectClass", "sidMap");
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(msg, "cn", sid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_add(ldb, msg);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
trans = ldb_transaction_commit(ldb);
if (trans != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
*sid = new_sid;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
failed:
if (trans == LDB_SUCCESS) ldb_transaction_cancel(ldb);
talloc_free(tmp_ctx);
return status;
}
/**
* Map a SID to a Unix uid.
* Map a SID to an unixid struct.
*
* If no mapping exists, a new mapping will be created.
*
* \todo Check if SIDs can be resolved if lp_idmap_trusted_only() == true
* \todo Fix backwards compatibility for Samba3
*
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context to use
* \param sid SID to map to a Unix uid
* \param uid pointer to receive the mapped uid
* \param sid SID to map to an unixid struct
* \param unixid pointer to a unixid struct pointer
* \return NT_STATUS_OK on success, NT_STATUS_INVALID_SID if the sid is not from
* a trusted domain and idmap trusted only = true, NT_STATUS_NONE_MAPPED if the
* mapping failed.
*/
NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
const struct dom_sid *sid, uid_t *uid)
NTSTATUS idmap_sid_to_xid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
const struct dom_sid *sid, struct unixid **unixid)
{
int ret;
NTSTATUS status = NT_STATUS_NONE_MAPPED;
@ -547,8 +321,8 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
struct ldb_message *hwm_msg, *map_msg;
struct ldb_result *res = NULL;
int trans;
uid_t low, high, hwm, new_uid;
char *sid_string, *uid_string, *hwm_string;
uint32_t low, high, hwm, new_xid;
char *sid_string, *unixid_string, *hwm_string;
bool hwm_entry_exists;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
@ -562,20 +336,65 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
}
if (res->count == 1) {
new_uid = ldb_msg_find_attr_as_uint(res->msgs[0], "uidNumber",
new_xid = ldb_msg_find_attr_as_uint(res->msgs[0], "xidNumber",
-1);
if (new_uid == (uid_t) -1) {
DEBUG(1, ("Invalid uid mapping.\n"));
if (new_xid == (uint32_t) -1) {
DEBUG(1, ("Invalid xid mapping.\n"));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
*uid = new_uid;
*unixid = talloc(mem_ctx, struct unixid);
if (*unixid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
(*unixid)->id = new_xid;
(*unixid)->type = ID_TYPE_BOTH;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
DEBUG(6, ("No existing mapping found, attempting to create one.\n"));
if (dom_sid_in_domain(idmap_ctx->unix_users_sid, sid)) {
uint32_t rid;
DEBUG(6, ("This is a local unix uid, just calculate that.\n"));
status = dom_sid_split_rid(tmp_ctx, sid, NULL, &rid);
if (!NT_STATUS_IS_OK(status)) goto failed;
*unixid = talloc(mem_ctx, struct unixid);
if (*unixid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
(*unixid)->id = rid - 1;
(*unixid)->type = ID_TYPE_UID;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
if (dom_sid_in_domain(idmap_ctx->unix_groups_sid, sid)) {
uint32_t rid;
DEBUG(6, ("This is a local unix gid, just calculate that.\n"));
status = dom_sid_split_rid(tmp_ctx, sid, NULL, &rid);
if (!NT_STATUS_IS_OK(status)) goto failed;
*unixid = talloc(mem_ctx, struct unixid);
if (*unixid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
(*unixid)->id = rid - 1;
(*unixid)->type = ID_TYPE_GID;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
trans = ldb_transaction_start(ldb);
if (trans != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
@ -629,8 +448,8 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
goto failed;
}
hwm = ldb_msg_find_attr_as_uint(res->msgs[0], "uidNumber", -1);
if (hwm == (uid_t)-1) {
hwm = ldb_msg_find_attr_as_uint(res->msgs[0], "xidNumber", -1);
if (hwm == (uint32_t)-1) {
hwm = low;
hwm_entry_exists = false;
} else {
@ -638,7 +457,7 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
}
if (hwm > high) {
DEBUG(1, ("Out of uids to allocate.\n"));
DEBUG(1, ("Out of xids to allocate.\n"));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
@ -652,7 +471,7 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
hwm_msg->dn = dn;
new_uid = hwm;
new_xid = hwm;
hwm++;
hwm_string = talloc_asprintf(tmp_ctx, "%u", hwm);
@ -667,8 +486,8 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
goto failed;
}
uid_string = talloc_asprintf(tmp_ctx, "%u", new_uid);
if (uid_string == NULL) {
unixid_string = talloc_asprintf(tmp_ctx, "%u", new_xid);
if (unixid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
@ -696,7 +515,7 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
els[0].num_values = 1;
els[0].values = &vals[0];
els[0].flags = LDB_FLAG_MOD_DELETE;
els[0].name = talloc_strdup(tmp_ctx, "uidNumber");
els[0].name = talloc_strdup(tmp_ctx, "xidNumber");
if (els[0].name == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
@ -707,19 +526,19 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
els[1].flags = LDB_FLAG_MOD_ADD;
els[1].name = els[0].name;
vals[0].data = (uint8_t *)uid_string;
vals[0].length = strlen(uid_string);
vals[0].data = (uint8_t *)unixid_string;
vals[0].length = strlen(unixid_string);
vals[1].data = (uint8_t *)hwm_string;
vals[1].length = strlen(hwm_string);
} else {
ret = ldb_msg_add_empty(hwm_msg, "uidNumber", LDB_FLAG_MOD_ADD,
ret = ldb_msg_add_empty(hwm_msg, "xidNumber", LDB_FLAG_MOD_ADD,
NULL);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(hwm_msg, "uidNumber", hwm_string);
ret = ldb_msg_add_string(hwm_msg, "xidNumber", hwm_string);
if (ret != LDB_SUCCESS)
{
status = NT_STATUS_NONE_MAPPED;
@ -729,7 +548,7 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
ret = ldb_modify(ldb, hwm_msg);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Updating the uid high water mark failed: %s\n",
DEBUG(1, ("Updating the xid high water mark failed: %s\n",
ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
@ -747,7 +566,7 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
goto failed;
}
ret = ldb_msg_add_string(map_msg, "uidNumber", uid_string);
ret = ldb_msg_add_string(map_msg, "xidNumber", unixid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
@ -786,7 +605,14 @@ NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
goto failed;
}
*uid = new_uid;
*unixid = talloc(mem_ctx, struct unixid);
if (*unixid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
(*unixid)->id = new_xid;
(*unixid)->type = ID_TYPE_BOTH;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
@ -797,276 +623,92 @@ failed:
}
/**
* Map a SID to a Unix gid.
*
* If no mapping exist, a new mapping will be created.
*
* \todo Check if SID resolve when lp_idmap_trusted_only() == true
* Convert an array of unixids to the corresponding array of SIDs
*
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context to use
* \param sid SID to map to a Unix gid
* \param gid pointer to receive the mapped gid
* \return NT_STATUS_OK on success, NT_STATUS_INVALID_SID if the sid is not from
* a trusted domain and idmap trusted only = true, NT_STATUS_NONE_MAPPED if the
* mapping failed.
* \param mem_ctx talloc context the memory for the dom_sids is allocated
* from.
* \param count length of id_mapping array.
* \param id array of id_mappings.
* \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping is not
* possible at all, NT_STATUS_SOME_UNMAPPED if some mappings worked and some
* did not.
*/
NTSTATUS idmap_sid_to_gid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
const struct dom_sid *sid, gid_t *gid)
{
int ret;
NTSTATUS status = NT_STATUS_NONE_MAPPED;
struct ldb_context *ldb = idmap_ctx->ldb_ctx;
struct ldb_dn *dn;
struct ldb_message *hwm_msg, *map_msg;
struct ldb_result *res = NULL;
int trans = -1;
gid_t low, high, hwm, new_gid;
char *sid_string, *gid_string, *hwm_string;
bool hwm_entry_exists;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
NULL, "(&(objectClass=sidMap)(objectSid=%s))",
ldap_encode_ndr_dom_sid(tmp_ctx, sid));
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
NTSTATUS idmap_xids_to_sids(struct idmap_context *idmap_ctx,
TALLOC_CTX *mem_ctx, int count,
struct id_mapping *id)
{
int i;
int error_count = 0;
for (i = 0; i < count; ++i) {
id[i].status = idmap_xid_to_sid(idmap_ctx, mem_ctx,
id[i].unixid, &id[i].sid);
if (NT_STATUS_EQUAL(id[i].status, NT_STATUS_RETRY)) {
id[i].status = idmap_xid_to_sid(idmap_ctx, mem_ctx,
id[i].unixid,
&id[i].sid);
}
if (!NT_STATUS_IS_OK(id[i].status)) {
DEBUG(1, ("idmapping failed for id[%d]\n", i));
error_count++;
}
}
if (res->count == 1) {
new_gid = ldb_msg_find_attr_as_uint(res->msgs[0], "gidNumber",
-1);
if (new_gid == (gid_t) -1) {
DEBUG(1, ("Invalid gid mapping.\n"));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
*gid = new_gid;
talloc_free(tmp_ctx);
if (error_count == count) {
/* Mapping did not work at all. */
return NT_STATUS_NONE_MAPPED;
} else if (error_count > 0) {
/* Some mappings worked, some did not. */
return STATUS_SOME_UNMAPPED;
} else {
return NT_STATUS_OK;
}
}
/**
* Convert an array of SIDs to the corresponding array of unixids
*
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context the memory for the unixids is allocated
* from.
* \param count length of id_mapping array.
* \param id array of id_mappings.
* \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping is not
* possible at all, NT_STATUS_SOME_UNMAPPED if some mappings worked and some
* did not.
*/
NTSTATUS idmap_sids_to_xids(struct idmap_context *idmap_ctx,
TALLOC_CTX *mem_ctx, int count,
struct id_mapping *id)
{
int i;
int error_count = 0;
for (i = 0; i < count; ++i) {
id[i].status = idmap_sid_to_xid(idmap_ctx, mem_ctx,
id[i].sid, &id[i].unixid);
if (NT_STATUS_EQUAL(id[i].status, NT_STATUS_RETRY)) {
id[i].status = idmap_sid_to_xid(idmap_ctx, mem_ctx,
id[i].sid,
&id[i].unixid);
}
if (!NT_STATUS_IS_OK(id[i].status)) {
DEBUG(1, ("idmapping failed for id[%d]\n", i));
error_count++;
}
}
if (error_count == count) {
/* Mapping did not work at all. */
return NT_STATUS_NONE_MAPPED;
} else if (error_count > 0) {
/* Some mappings worked, some did not. */
return STATUS_SOME_UNMAPPED;
} else {
return NT_STATUS_OK;
}
DEBUG(6, ("No existing mapping found, attempting to create one.\n"));
trans = ldb_transaction_start(ldb);
if (trans != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
/* Redo the search to make sure noone changed the mapping while we
* weren't looking */
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
NULL, "(&(objectClass=sidMap)(objectSid=%s))",
ldap_encode_ndr_dom_sid(tmp_ctx, sid));
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
if (res->count > 0) {
DEBUG(1, ("Database changed while trying to add a sidmap.\n"));
status = NT_STATUS_RETRY;
goto failed;
}
/*FIXME: if lp_idmap_trusted_only() == true, check if SID can be
* resolved here. */
ret = idmap_get_bounds(idmap_ctx, &low, &high);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
dn = ldb_dn_new(tmp_ctx, ldb, "CN=CONFIG");
if (dn == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
ret = ldb_search(ldb, dn, LDB_SCOPE_BASE, NULL, NULL, &res);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
talloc_steal(tmp_ctx, res);
if (res->count != 1) {
DEBUG(1, ("No CN=CONFIG record, idmap database is broken.\n"));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
hwm = ldb_msg_find_attr_as_uint(res->msgs[0], "gidNumber", -1);
if (hwm == (gid_t)-1) {
hwm = low;
hwm_entry_exists = false;
} else {
hwm_entry_exists = true;
}
if (hwm > high) {
DEBUG(1, ("Out of gids to allocate.\n"));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
hwm_msg = ldb_msg_new(tmp_ctx);
if (hwm_msg == NULL) {
DEBUG(1, ("Out of memory when creating ldb_message\n"));
status = NT_STATUS_NO_MEMORY;
goto failed;
}
hwm_msg->dn = dn;
new_gid = hwm;
hwm++;
hwm_string = talloc_asprintf(tmp_ctx, "%u", hwm);
if (hwm_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
sid_string = dom_sid_string(tmp_ctx, sid);
if (sid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
gid_string = talloc_asprintf(tmp_ctx, "%u", new_gid);
if (gid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
if (hwm_entry_exists) {
struct ldb_message_element *els;
struct ldb_val *vals;
/* We're modifying the entry, not just adding a new one. */
els = talloc_array(tmp_ctx, struct ldb_message_element, 2);
if (els == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
vals = talloc_array(tmp_ctx, struct ldb_val, 2);
if (els == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
hwm_msg->num_elements = 2;
hwm_msg->elements = els;
els[0].num_values = 1;
els[0].values = &vals[0];
els[0].flags = LDB_FLAG_MOD_DELETE;
els[0].name = talloc_strdup(tmp_ctx, "gidNumber");
if (els[0].name == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
els[1].num_values = 1;
els[1].values = &vals[1];
els[1].flags = LDB_FLAG_MOD_ADD;
els[1].name = els[0].name;
vals[0].data = (uint8_t *)gid_string;
vals[0].length = strlen(gid_string);
vals[1].data = (uint8_t *)hwm_string;
vals[1].length = strlen(hwm_string);
} else {
ret = ldb_msg_add_empty(hwm_msg, "gidNumber", LDB_FLAG_MOD_ADD,
NULL);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(hwm_msg, "gidNumber", hwm_string);
if (ret != LDB_SUCCESS)
{
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
}
ret = ldb_modify(ldb, hwm_msg);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Updating the gid high water mark failed: %s\n",
ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
map_msg = ldb_msg_new(tmp_ctx);
if (map_msg == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
map_msg->dn = ldb_dn_new_fmt(tmp_ctx, ldb, "CN=%s", sid_string);
if (map_msg->dn == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
ret = ldb_msg_add_string(map_msg, "gidNumber", gid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = idmap_msg_add_dom_sid(idmap_ctx, tmp_ctx, map_msg, "objectSid",
sid);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(map_msg, "objectClass", "sidMap");
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_msg_add_string(map_msg, "cn", sid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
ret = ldb_add(ldb, map_msg);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Adding a sidmap failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
trans = ldb_transaction_commit(ldb);
if (trans != LDB_SUCCESS) {
DEBUG(1, ("Transaction failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
*gid = new_gid;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
failed:
if (trans == LDB_SUCCESS) ldb_transaction_cancel(ldb);
talloc_free(tmp_ctx);
return status;
}

20
source/winbind/idmap.h
View File

@ -25,6 +25,26 @@
struct idmap_context {
struct loadparm_context *lp_ctx;
struct ldb_context *ldb_ctx;
struct dom_sid *unix_groups_sid;
struct dom_sid *unix_users_sid;
};
enum id_type {
ID_TYPE_NOT_SPECIFIED = 0,
ID_TYPE_UID,
ID_TYPE_GID,
ID_TYPE_BOTH
};
struct unixid {
uint32_t id;
enum id_type type;
};
struct id_mapping {
struct unixid *unixid;
struct dom_sid *sid;
NTSTATUS status;
};
#include "winbind/idmap_proto.h"

49
source/winbind/wb_gid2sid.c
View File

@ -3,7 +3,7 @@
Command backend for wbinfo -G
Copyright (C) Kai Blin 2007
Copyright (C) 2007-2008 Kai Blin
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
@ -33,37 +33,62 @@ struct gid2sid_state {
struct dom_sid *sid;
};
static void gid2sid_recv_sid(struct composite_context *ctx);
struct composite_context *wb_gid2sid_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service, gid_t gid)
{
struct composite_context *result;
struct composite_context *result, *ctx;
struct gid2sid_state *state;
struct unixid *unixid;
struct id_mapping *ids;
DEBUG(5, ("wb_gid2sid_send called\n"));
result = composite_create(mem_ctx, service->task->event_ctx);
if (!result) return NULL;
state = talloc(mem_ctx, struct gid2sid_state);
state = talloc(result, struct gid2sid_state);
if (composite_nomem(state, result)) return result;
state->ctx = result;
result->private_data = state;
state->service = service;
state->ctx->status = idmap_gid_to_sid(service->idmap_ctx, mem_ctx, gid,
&state->sid);
if (NT_STATUS_EQUAL(state->ctx->status, NT_STATUS_RETRY)) {
state->ctx->status = idmap_gid_to_sid(service->idmap_ctx,
mem_ctx, gid,
&state->sid);
}
if (!composite_is_ok(state->ctx)) return result;
unixid = talloc(result, struct unixid);
if (composite_nomem(unixid, result)) return result;
unixid->id = gid;
unixid->type = ID_TYPE_GID;
composite_done(state->ctx);
ids = talloc(result, struct id_mapping);
if (composite_nomem(ids, result)) return result;
ids->unixid = unixid;
ids->sid = NULL;
ctx = wb_xids2sids_send(result, service, 1, ids);
if (composite_nomem(ctx, result)) return result;
composite_continue(result, ctx, gid2sid_recv_sid, state);
return result;
}
static void gid2sid_recv_sid(struct composite_context *ctx)
{
struct gid2sid_state *state = talloc_get_type(ctx->async.private_data,
struct gid2sid_state);
struct id_mapping *ids = NULL;
state->ctx->status = wb_xids2sids_recv(ctx, &ids);
if (!composite_is_ok(state->ctx)) return;
if (!NT_STATUS_IS_OK(ids->status)) {
composite_error(state->ctx, ids->status);
return;
}
state->sid = ids->sid;
composite_done(state->ctx);
}
NTSTATUS wb_gid2sid_recv(struct composite_context *ctx, TALLOC_CTX *mem_ctx,
struct dom_sid **sid)
{

48
source/winbind/wb_sid2gid.c
View File

@ -3,7 +3,7 @@
Map a SID to a gid
Copyright (C) Kai Blin 2007
Copyright (C) 2007-2008 Kai Blin
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
@ -33,11 +33,14 @@ struct sid2gid_state {
gid_t gid;
};
static void sid2gid_recv_gid(struct composite_context *ctx);
struct composite_context *wb_sid2gid_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service, const struct dom_sid *sid)
{
struct composite_context *result;
struct composite_context *result, *ctx;
struct sid2gid_state *state;
struct id_mapping *ids;
DEBUG(5, ("wb_sid2gid_send called\n"));
@ -51,18 +54,43 @@ struct composite_context *wb_sid2gid_send(TALLOC_CTX *mem_ctx,
result->private_data = state;
state->service = service;
state->ctx->status = idmap_sid_to_gid(service->idmap_ctx, state, sid,
&state->gid);
if (NT_STATUS_EQUAL(state->ctx->status, NT_STATUS_RETRY)) {
state->ctx->status = idmap_sid_to_gid(service->idmap_ctx, state,
sid, &state->gid);
}
if (!composite_is_ok(state->ctx)) return result;
ids = talloc(result, struct id_mapping);
if (composite_nomem(ids, result)) return result;
composite_done(state->ctx);
ids->sid = dom_sid_dup(result, sid);
if (composite_nomem(ids->sid, result)) return result;
ctx = wb_sids2xids_send(result, service, 1, ids);
if (composite_nomem(ctx, result)) return result;
composite_continue(result, ctx, sid2gid_recv_gid, state);
return result;
}
static void sid2gid_recv_gid(struct composite_context *ctx)
{
struct sid2gid_state *state = talloc_get_type(ctx->async.private_data,
struct sid2gid_state);
struct id_mapping *ids = NULL;
state->ctx->status = wb_sids2xids_recv(ctx, &ids);
if (!composite_is_ok(state->ctx)) return;
if (!NT_STATUS_IS_OK(ids->status)) {
composite_error(state->ctx, ids->status);
return;
}
if (ids->unixid->type == ID_TYPE_BOTH ||
ids->unixid->type == ID_TYPE_GID) {
state->gid = ids->unixid->id;
composite_done(state->ctx);
} else {
composite_error(state->ctx, NT_STATUS_INVALID_SID);
}
}
NTSTATUS wb_sid2gid_recv(struct composite_context *ctx, gid_t *gid)
{
NTSTATUS status = composite_wait(ctx);

50
source/winbind/wb_sid2uid.c
View File

@ -3,7 +3,7 @@
Map a SID to a uid
Copyright (C) Kai Blin 2007-2008
Copyright (C) 2007-2008 Kai Blin
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
@ -33,11 +33,14 @@ struct sid2uid_state {
uid_t uid;
};
static void sid2uid_recv_uid(struct composite_context *ctx);
struct composite_context *wb_sid2uid_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service, const struct dom_sid *sid)
{
struct composite_context *result;
struct composite_context *result, *ctx;
struct sid2uid_state *state;
struct id_mapping *ids;
DEBUG(5, ("wb_sid2uid_send called\n"));
@ -45,24 +48,49 @@ struct composite_context *wb_sid2uid_send(TALLOC_CTX *mem_ctx,
if (!result) return NULL;
state = talloc(result, struct sid2uid_state);
if(composite_nomem(state, result)) return result;
if (composite_nomem(state, result)) return result;
state->ctx = result;
result->private_data = state;
state->service = service;
state->ctx->status = idmap_sid_to_uid(service->idmap_ctx, state, sid,
&state->uid);
if (NT_STATUS_EQUAL(state->ctx->status, NT_STATUS_RETRY)) {
state->ctx->status = idmap_sid_to_uid(service->idmap_ctx, state,
sid, &state->uid);
}
if (!composite_is_ok(state->ctx)) return result;
ids = talloc(result, struct id_mapping);
if (composite_nomem(ids, result)) return result;
composite_done(state->ctx);
ids->sid = dom_sid_dup(result, sid);
if (composite_nomem(ids->sid, result)) return result;
ctx = wb_sids2xids_send(result, service, 1, ids);
if (composite_nomem(ctx, result)) return result;
composite_continue(result, ctx, sid2uid_recv_uid, state);
return result;
}
static void sid2uid_recv_uid(struct composite_context *ctx)
{
struct sid2uid_state *state = talloc_get_type(ctx->async.private_data,
struct sid2uid_state);
struct id_mapping *ids = NULL;
state->ctx->status = wb_sids2xids_recv(ctx, &ids);
if (!composite_is_ok(state->ctx)) return;
if (!NT_STATUS_IS_OK(ids->status)) {
composite_error(state->ctx, ids->status);
return;
}
if (ids->unixid->type == ID_TYPE_BOTH ||
ids->unixid->type == ID_TYPE_UID) {
state->uid = ids->unixid->id;
composite_done(state->ctx);
} else {
composite_error(state->ctx, NT_STATUS_INVALID_SID);
}
}
NTSTATUS wb_sid2uid_recv(struct composite_context *ctx, uid_t *uid)
{
NTSTATUS status = composite_wait(ctx);

82
source/winbind/wb_sids2xids.c Normal file
View File

@ -0,0 +1,82 @@
/*
Unix SMB/CIFS implementation.
Map SIDs to unixids.
Copyright (C) 2008 Kai Blin
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 "libcli/composite/composite.h"
#include "winbind/wb_server.h"
#include "smbd/service_task.h"
#include "winbind/wb_helper.h"
#include "libcli/security/proto.h"
#include "winbind/idmap.h"
struct sids2xids_state {
struct composite_context *ctx;
struct wbsrv_service *service;
struct id_mapping *ids;
int count;
};
struct composite_context *wb_sids2xids_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
int count, struct id_mapping *ids)
{
struct composite_context *result;
struct sids2xids_state *state;
DEBUG(5, ("wb_sids2xids_send called\n"));
result = composite_create(mem_ctx, service->task->event_ctx);
if (!result) return NULL;
state = talloc(result, struct sids2xids_state);
if (composite_nomem(state, result)) return result;
state->ctx = result;
result->private_data = state;
state->service = service;
state->count = count;
state->ids = ids;
state->ctx->status = idmap_sids_to_xids(service->idmap_ctx, mem_ctx,
count, state->ids);
if (!composite_is_ok(state->ctx)) return result;
composite_done(state->ctx);
return result;
}
NTSTATUS wb_sids2xids_recv(struct composite_context *ctx,
struct id_mapping **ids)
{
NTSTATUS status = composite_wait(ctx);
DEBUG(5, ("wb_sids2xids_recv called\n"));
if (NT_STATUS_IS_OK(status)) {
struct sids2xids_state *state =
talloc_get_type(ctx->private_data,
struct sids2xids_state);
*ids = state->ids;
}
talloc_free(ctx);
return status;
}

49
source/winbind/wb_uid2sid.c
View File

@ -3,7 +3,7 @@
Command backend for wbinfo -U
Copyright (C) Kai Blin 2007-2008
Copyright (C) 2007-2008 Kai Blin
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
@ -33,35 +33,62 @@ struct uid2sid_state {
struct dom_sid *sid;
};
static void uid2sid_recv_sid(struct composite_context *ctx);
struct composite_context *wb_uid2sid_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service, uid_t uid)
{
struct composite_context *result;
struct composite_context *result, *ctx;
struct uid2sid_state *state;
struct unixid *unixid;
struct id_mapping *ids;
DEBUG(5, ("wb_uid2sid_send called\n"));
result = composite_create(mem_ctx, service->task->event_ctx);
if (!result) return NULL;
state = talloc(mem_ctx, struct uid2sid_state);
state = talloc(result, struct uid2sid_state);
if (composite_nomem(state, result)) return result;
state->ctx = result;
result->private_data = state;
state->service = service;
state->ctx->status = idmap_uid_to_sid(service->idmap_ctx, mem_ctx, uid,
&state->sid);
if (NT_STATUS_EQUAL(state->ctx->status, NT_STATUS_RETRY)) {
state->ctx->status = idmap_uid_to_sid(service->idmap_ctx,
mem_ctx, uid,
&state->sid);
unixid = talloc(result, struct unixid);
if (composite_nomem(unixid, result)) return result;
unixid->id = uid;
unixid->type = ID_TYPE_UID;
ids = talloc(result, struct id_mapping);
if (composite_nomem(ids, result)) return result;
ids->unixid = unixid;
ids->sid = NULL;
ctx = wb_xids2sids_send(result, service, 1, ids);
if (composite_nomem(ctx, result)) return result;
composite_continue(result, ctx, uid2sid_recv_sid, state);
return result;
}
static void uid2sid_recv_sid(struct composite_context *ctx)
{
struct uid2sid_state *state = talloc_get_type(ctx->async.private_data,
struct uid2sid_state);
struct id_mapping *ids = NULL;
state->ctx->status = wb_xids2sids_recv(ctx, &ids);
if (!composite_is_ok(state->ctx)) return;
if (!NT_STATUS_IS_OK(ids->status)) {
composite_error(state->ctx, ids->status);
return;
}
if (!composite_is_ok(state->ctx)) return result;
state->sid = ids->sid;
composite_done(state->ctx);
return result;
}
NTSTATUS wb_uid2sid_recv(struct composite_context *ctx, TALLOC_CTX *mem_ctx,

82
source/winbind/wb_xids2sids.c Normal file
View File

@ -0,0 +1,82 @@
/*
Unix SMB/CIFS implementation.
Convet an unixid struct to a SID
Copyright (C) 2008 Kai Blin
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 "libcli/composite/composite.h"
#include "winbind/wb_server.h"
#include "smbd/service_task.h"
#include "winbind/wb_helper.h"
#include "libcli/security/proto.h"
#include "winbind/idmap.h"
struct xids2sids_state {
struct composite_context *ctx;
struct wbsrv_service *service;
struct id_mapping *ids;
int count;
};
struct composite_context *wb_xids2sids_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service,
int count, struct id_mapping *ids)
{
struct composite_context *result;
struct xids2sids_state *state;
DEBUG(0, ("wb_xids2sids_send called\n"));
result = composite_create(mem_ctx, service->task->event_ctx);
if (!result) return NULL;
state = talloc(mem_ctx, struct xids2sids_state);
if (composite_nomem(state, result)) return result;
state->ctx = result;
result->private_data = state;
state->service = service;
state->count = count;
state->ids = ids;
state->ctx->status = idmap_xids_to_sids(service->idmap_ctx, mem_ctx,
count, state->ids);
if (!composite_is_ok(state->ctx)) return result;
composite_done(state->ctx);
return result;
}
NTSTATUS wb_xids2sids_recv(struct composite_context *ctx,
struct id_mapping **ids)
{
NTSTATUS status = composite_wait(ctx);
DEBUG(0, ("wb_xids2sids_recv called.\n"));
if (NT_STATUS_IS_OK(status)) {
struct xids2sids_state *state =
talloc_get_type(ctx->private_data,
struct xids2sids_state);
*ids = state->ids;
}
talloc_free(ctx);
return status;
}