diff options
Diffstat (limited to 'source4/rpc_server/winreg/rpc_winreg.c')
| -rw-r--r-- | source4/rpc_server/winreg/rpc_winreg.c | 744 |
1 files changed, 744 insertions, 0 deletions
diff --git a/source4/rpc_server/winreg/rpc_winreg.c b/source4/rpc_server/winreg/rpc_winreg.c new file mode 100644 index 0000000..f8bd8c1 --- /dev/null +++ b/source4/rpc_server/winreg/rpc_winreg.c @@ -0,0 +1,744 @@ +/* + Unix SMB/CIFS implementation. + + endpoint server for the winreg pipe + + Copyright (C) 2004 Jelmer Vernooij, jelmer@samba.org + Copyright (C) 2008 Matthias Dieter Wallnöfer, mwallnoefer@yahoo.de + + 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 "rpc_server/dcerpc_server.h" +#include "lib/registry/registry.h" +#include "librpc/gen_ndr/ndr_winreg.h" +#include "librpc/gen_ndr/ndr_security.h" +#include "libcli/security/session.h" + +enum handle_types { HTYPE_REGVAL, HTYPE_REGKEY }; + +static WERROR dcesrv_winreg_openhive(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, uint32_t hkey, + struct policy_handle **outh) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct registry_context *ctx = NULL; + struct dcesrv_handle *h; + WERROR result; + + h = dcesrv_handle_create(dce_call, HTYPE_REGKEY); + W_ERROR_HAVE_NO_MEMORY(h); + + result = reg_open_samba(h, &ctx, + dce_call->event_ctx, + dce_call->conn->dce_ctx->lp_ctx, + session_info, + NULL); + if (!W_ERROR_IS_OK(result)) { + DEBUG(0, ("Error opening registry: %s\n", win_errstr(result))); + return result; + } + + result = reg_get_predefined_key(ctx, hkey, + (struct registry_key **)&h->data); + if (!W_ERROR_IS_OK(result)) { + return result; + } + *outh = &h->wire_handle; + + return result; +} + +#define func_winreg_OpenHive(k,n) static WERROR dcesrv_winreg_Open ## k (struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx, struct winreg_Open ## k *r) \ +{ \ + return dcesrv_winreg_openhive (dce_call, mem_ctx, n, &r->out.handle);\ +} + +func_winreg_OpenHive(HKCR,HKEY_CLASSES_ROOT) +func_winreg_OpenHive(HKCU,HKEY_CURRENT_USER) +func_winreg_OpenHive(HKLM,HKEY_LOCAL_MACHINE) +func_winreg_OpenHive(HKPD,HKEY_PERFORMANCE_DATA) +func_winreg_OpenHive(HKU,HKEY_USERS) +func_winreg_OpenHive(HKCC,HKEY_CURRENT_CONFIG) +func_winreg_OpenHive(HKDD,HKEY_DYN_DATA) +func_winreg_OpenHive(HKPT,HKEY_PERFORMANCE_TEXT) +func_winreg_OpenHive(HKPN,HKEY_PERFORMANCE_NLSTEXT) + +/* + winreg_CloseKey +*/ +static WERROR dcesrv_winreg_CloseKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_CloseKey *r) +{ + struct dcesrv_handle *h; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + + talloc_unlink(dce_call->context, h); + + ZERO_STRUCTP(r->out.handle); + + return WERR_OK; +} + +/* + winreg_CreateKey +*/ +static WERROR dcesrv_winreg_CreateKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_CreateKey *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h, *newh; + struct security_descriptor sd; + struct registry_key *key; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + newh = dcesrv_handle_create(dce_call, HTYPE_REGKEY); + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + /* we support only non volatile keys */ + if (r->in.options != REG_OPTION_NON_VOLATILE) { + return WERR_NOT_SUPPORTED; + } + + /* the security descriptor is optional */ + if (r->in.secdesc != NULL) { + DATA_BLOB sdblob; + enum ndr_err_code ndr_err; + sdblob.data = r->in.secdesc->sd.data; + sdblob.length = r->in.secdesc->sd.len; + if (sdblob.data == NULL) { + return WERR_INVALID_PARAMETER; + } + ndr_err = ndr_pull_struct_blob_all(&sdblob, mem_ctx, &sd, + (ndr_pull_flags_fn_t)ndr_pull_security_descriptor); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + return WERR_INVALID_PARAMETER; + } + } + + result = reg_key_add_name(newh, key, r->in.name.name, NULL, + r->in.secdesc?&sd:NULL, (struct registry_key **)&newh->data); + + r->out.action_taken = talloc(mem_ctx, enum winreg_CreateAction); + if (r->out.action_taken == NULL) { + talloc_free(newh); + return WERR_NOT_ENOUGH_MEMORY; + } + *r->out.action_taken = REG_ACTION_NONE; + + if (W_ERROR_IS_OK(result)) { + r->out.new_handle = &newh->wire_handle; + *r->out.action_taken = REG_CREATED_NEW_KEY; + } else { + talloc_free(newh); + } + + return result; + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_DeleteKey +*/ +static WERROR dcesrv_winreg_DeleteKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_DeleteKey *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h; + struct registry_key *key; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + result = reg_key_del(mem_ctx, key, r->in.key.name); + talloc_unlink(dce_call->context, h); + + return result; + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_DeleteValue +*/ +static WERROR dcesrv_winreg_DeleteValue(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_DeleteValue *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h; + struct registry_key *key; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + return reg_del_value(mem_ctx, key, r->in.value.name); + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_EnumKey +*/ +static WERROR dcesrv_winreg_EnumKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_EnumKey *r) +{ + struct dcesrv_handle *h; + struct registry_key *key; + const char *name, *classname; + NTTIME last_mod; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + result = reg_key_get_subkey_by_index(mem_ctx, + key, r->in.enum_index, &name, &classname, &last_mod); + + if (2*strlen_m_term(name) > r->in.name->size) { + return WERR_MORE_DATA; + } + + if (name != NULL) { + r->out.name->name = name; + r->out.name->length = 2*strlen_m_term(name); + } else { + r->out.name->name = r->in.name->name; + r->out.name->length = r->in.name->length; + } + r->out.name->size = r->in.name->size; + + r->out.keyclass = r->in.keyclass; + if (classname != NULL) { + r->out.keyclass->name = classname; + r->out.keyclass->length = 2*strlen_m_term(classname); + } else { + r->out.keyclass->name = r->in.keyclass->name; + r->out.keyclass->length = r->in.keyclass->length; + } + r->out.keyclass->size = r->in.keyclass->size; + + if (r->in.last_changed_time != NULL) + r->out.last_changed_time = &last_mod; + + return result; +} + + +/* + winreg_EnumValue +*/ +static WERROR dcesrv_winreg_EnumValue(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_EnumValue *r) +{ + struct dcesrv_handle *h; + struct registry_key *key; + const char *data_name; + uint32_t data_type; + DATA_BLOB data; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + result = reg_key_get_value_by_index(mem_ctx, key, + r->in.enum_index, &data_name, &data_type, &data); + + if (!W_ERROR_IS_OK(result)) { + /* if the lookup wasn't successful, send client query back */ + data_name = r->in.name->name; + data_type = *r->in.type; + data.data = r->in.value; + data.length = *r->in.length; + } + + /* "data_name" is NULL when we query the default attribute */ + if (data_name != NULL) { + r->out.name->name = data_name; + r->out.name->length = 2*strlen_m_term(data_name); + } else { + r->out.name->name = r->in.name->name; + r->out.name->length = r->in.name->length; + } + r->out.name->size = r->in.name->size; + + r->out.type = talloc(mem_ctx, enum winreg_Type); + if (!r->out.type) { + return WERR_NOT_ENOUGH_MEMORY; + } + *r->out.type = (enum winreg_Type) data_type; + + if (r->in.size != NULL) { + r->out.size = talloc(mem_ctx, uint32_t); + *r->out.size = data.length; + } + /* check the client has enough room for the value */ + if (r->in.value != NULL && + r->in.size != NULL && + data.length > *r->in.size) { + return WERR_MORE_DATA; + } + + if (r->in.value != NULL) { + r->out.value = data.data; + } + + if (r->in.length != NULL) { + r->out.length = r->out.size; + } + + return result; +} + + +/* + winreg_FlushKey +*/ +static WERROR dcesrv_winreg_FlushKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_FlushKey *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h; + struct registry_key *key; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + return reg_key_flush(key); + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_GetKeySecurity +*/ +static WERROR dcesrv_winreg_GetKeySecurity(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_GetKeySecurity *r) +{ + struct dcesrv_handle *h; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_LoadKey +*/ +static WERROR dcesrv_winreg_LoadKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_LoadKey *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_NotifyChangeKeyValue +*/ +static WERROR dcesrv_winreg_NotifyChangeKeyValue(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_NotifyChangeKeyValue *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_OpenKey +*/ +static WERROR dcesrv_winreg_OpenKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_OpenKey *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h, *newh; + struct registry_key *key; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.parent_handle, HTYPE_REGKEY); + key = h->data; + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + case SECURITY_USER: + if (r->in.keyname.name && strcmp(r->in.keyname.name, "") == 0) { + newh = talloc_reference(dce_call->context, h); + result = WERR_OK; + } else { + newh = dcesrv_handle_create(dce_call, HTYPE_REGKEY); + result = reg_open_key(newh, key, r->in.keyname.name, + (struct registry_key **)&newh->data); + } + + if (W_ERROR_IS_OK(result)) { + r->out.handle = &newh->wire_handle; + } else { + talloc_free(newh); + } + return result; + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_QueryInfoKey +*/ +static WERROR dcesrv_winreg_QueryInfoKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_QueryInfoKey *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h; + struct registry_key *key; + const char *classname = NULL; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + case SECURITY_USER: + result = reg_key_get_info(mem_ctx, key, &classname, + r->out.num_subkeys, r->out.num_values, + r->out.last_changed_time, r->out.max_subkeylen, + r->out.max_valnamelen, r->out.max_valbufsize); + + if (r->out.max_subkeylen != NULL) { + /* for UTF16 encoding */ + *r->out.max_subkeylen *= 2; + } + if (r->out.max_valnamelen != NULL) { + /* for UTF16 encoding */ + *r->out.max_valnamelen *= 2; + } + + if (classname != NULL) { + r->out.classname->name = classname; + r->out.classname->name_len = 2*strlen_m_term(classname); + } else { + r->out.classname->name = r->in.classname->name; + r->out.classname->name_len = r->in.classname->name_len; + } + r->out.classname->name_size = r->in.classname->name_size; + + return result; + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_QueryValue +*/ +static WERROR dcesrv_winreg_QueryValue(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_QueryValue *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h; + struct registry_key *key; + uint32_t value_type; + DATA_BLOB value_data; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + case SECURITY_USER: + if ((r->in.type == NULL) || (r->in.data_length == NULL) || + (r->in.data_size == NULL)) { + return WERR_INVALID_PARAMETER; + } + + result = reg_key_get_value_by_name(mem_ctx, key, + r->in.value_name->name, &value_type, &value_data); + + if (!W_ERROR_IS_OK(result)) { + /* if the lookup wasn't successful, send client query back */ + value_type = *r->in.type; + value_data.data = r->in.data; + value_data.length = *r->in.data_length; + } else { + if ((r->in.data != NULL) + && (*r->in.data_size < value_data.length)) { + result = WERR_MORE_DATA; + } + } + + r->out.type = talloc(mem_ctx, enum winreg_Type); + if (!r->out.type) { + return WERR_NOT_ENOUGH_MEMORY; + } + *r->out.type = (enum winreg_Type) value_type; + r->out.data_length = talloc(mem_ctx, uint32_t); + if (!r->out.data_length) { + return WERR_NOT_ENOUGH_MEMORY; + } + *r->out.data_length = value_data.length; + r->out.data_size = talloc(mem_ctx, uint32_t); + if (!r->out.data_size) { + return WERR_NOT_ENOUGH_MEMORY; + } + *r->out.data_size = value_data.length; + r->out.data = value_data.data; + + return result; + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_ReplaceKey +*/ +static WERROR dcesrv_winreg_ReplaceKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_ReplaceKey *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_RestoreKey +*/ +static WERROR dcesrv_winreg_RestoreKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_RestoreKey *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_SaveKey +*/ +static WERROR dcesrv_winreg_SaveKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_SaveKey *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_SetKeySecurity +*/ +static WERROR dcesrv_winreg_SetKeySecurity(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_SetKeySecurity *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_SetValue +*/ +static WERROR dcesrv_winreg_SetValue(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_SetValue *r) +{ + struct auth_session_info *session_info = + dcesrv_call_session_info(dce_call); + struct dcesrv_handle *h; + struct registry_key *key; + DATA_BLOB data; + WERROR result; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + key = h->data; + + switch (security_session_user_level(session_info, NULL)) + { + case SECURITY_SYSTEM: + case SECURITY_ADMINISTRATOR: + data.data = r->in.data; + data.length = r->in.size; + result = reg_val_set(key, r->in.name.name, r->in.type, data); + return result; + default: + return WERR_ACCESS_DENIED; + } +} + + +/* + winreg_UnLoadKey +*/ +static WERROR dcesrv_winreg_UnLoadKey(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_UnLoadKey *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_InitiateSystemShutdown +*/ +static WERROR dcesrv_winreg_InitiateSystemShutdown(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_InitiateSystemShutdown *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_AbortSystemShutdown +*/ +static WERROR dcesrv_winreg_AbortSystemShutdown(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_AbortSystemShutdown *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_GetVersion +*/ +static WERROR dcesrv_winreg_GetVersion(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_GetVersion *r) +{ + struct dcesrv_handle *h; + + DCESRV_PULL_HANDLE_FAULT(h, r->in.handle, HTYPE_REGKEY); + + r->out.version = talloc(mem_ctx, uint32_t); + W_ERROR_HAVE_NO_MEMORY(r->out.version); + + *r->out.version = 5; + + return WERR_OK; +} + + +/* + winreg_QueryMultipleValues +*/ +static WERROR dcesrv_winreg_QueryMultipleValues(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_QueryMultipleValues *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_InitiateSystemShutdownEx +*/ +static WERROR dcesrv_winreg_InitiateSystemShutdownEx(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_InitiateSystemShutdownEx *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_SaveKeyEx +*/ +static WERROR dcesrv_winreg_SaveKeyEx(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_SaveKeyEx *r) +{ + return WERR_NOT_SUPPORTED; +} + + +/* + winreg_QueryMultipleValues2 +*/ +static WERROR dcesrv_winreg_QueryMultipleValues2(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_QueryMultipleValues2 *r) +{ + return WERR_NOT_SUPPORTED; +} + +/* + winreg_DeleteKeyEx +*/ +static WERROR dcesrv_winreg_DeleteKeyEx(struct dcesrv_call_state *dce_call, + TALLOC_CTX *mem_ctx, + struct winreg_DeleteKeyEx *r) +{ + return WERR_NOT_SUPPORTED; +} + +/* include the generated boilerplate */ +#include "librpc/gen_ndr/ndr_winreg_s.c" |