s3-talloc Change TALLOC_ZERO_P() to talloc_zero()
[nivanova/samba-autobuild/.git] / source3 / libgpo / gpext / registry.c
index f50149840726b61524ad01371c6186e53fc79588..b0ec7b88d908069a36332beb600f94c132595aa5 100644 (file)
@@ -1,7 +1,7 @@
 /*
  *  Unix SMB/CIFS implementation.
  *  Group Policy Support
- *  Copyright (C) Guenther Deschner 2007-2008
+ *  Copyright (C) Guenther Deschner 2007-2008,2010
  *
  *  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
  */
 
 #include "includes.h"
+#include "../libgpo/gpo_ini.h"
+#include "../libgpo/gpo.h"
+#include "libgpo/gpo_proto.h"
+#include "registry.h"
+#include "../librpc/gen_ndr/ndr_preg.h"
 
 #define GP_EXT_NAME "registry"
 
 
 static TALLOC_CTX *ctx = NULL;
 
-struct gp_registry_file_header {
-       uint32_t signature;
-       uint32_t version;
-};
-
-struct gp_registry_file_entry {
-       UNISTR key;
-       UNISTR value;
-       enum winreg_Type type;
-       size_t size;
-       uint8_t *data;
-};
-
-struct gp_registry_file {
-       struct gp_registry_file_header header;
-       size_t num_entries;
-       struct gp_registry_entry *entries;
-};
-
-/****************************************************************
-****************************************************************/
-
-static bool reg_parse_header(const char *desc,
-                            struct gp_registry_file_header *header,
-                            prs_struct *ps,
-                            int depth)
-{
-       if (!header)
-               return false;
-
-       prs_debug(ps, depth, desc, "reg_parse_header");
-       depth++;
-
-       if (!prs_uint32("signature", ps, depth, &header->signature))
-               return false;
-
-       if (!prs_uint32("version", ps, depth, &header->version))
-               return false;
-
-       return true;
-}
-
-/****************************************************************
-****************************************************************/
-
-static bool reg_parse_and_verify_ucs2_char(const char *desc,
-                                          char character,
-                                          prs_struct *ps,
-                                          int depth)
-{
-       uint16_t tmp;
-
-       if (!prs_uint16(desc, ps, depth, &tmp))
-               return false;
-
-       if (tmp != UCS2_CHAR(character))
-               return false;
-
-       return true;
-}
-
-/****************************************************************
-****************************************************************/
-
-static bool reg_parse_init(prs_struct *ps, int depth)
-{
-       return reg_parse_and_verify_ucs2_char("initiator '['", '[',
-                                             ps, depth);
-}
-
-/****************************************************************
-****************************************************************/
-
-static bool reg_parse_sep(prs_struct *ps, int depth)
-{
-       return reg_parse_and_verify_ucs2_char("separator ';'", ';',
-                                             ps, depth);
-}
-
-/****************************************************************
-****************************************************************/
-
-static bool reg_parse_term(prs_struct *ps, int depth)
-{
-       return reg_parse_and_verify_ucs2_char("terminator ']'", ']',
-                                             ps, depth);
-}
-
-
-/****************************************************************
-* [key;value;type;size;data]
-****************************************************************/
-
-static bool reg_parse_entry(TALLOC_CTX *mem_ctx,
-                           const char *desc,
-                           struct gp_registry_file_entry *entry,
-                           prs_struct *ps,
-                           int depth)
-{
-       uint32_t size = 0;
-
-       if (!entry)
-               return false;
-
-       prs_debug(ps, depth, desc, "reg_parse_entry");
-       depth++;
-
-       ZERO_STRUCTP(entry);
-
-       if (!reg_parse_init(ps, depth))
-               return false;
-
-       if (!prs_unistr("key", ps, depth, &entry->key))
-               return false;
-
-       if (!reg_parse_sep(ps, depth))
-               return false;
-
-       if (!prs_unistr("value", ps, depth, &entry->value))
-               return false;
-
-       if (!reg_parse_sep(ps, depth))
-               return false;
-
-       if (!prs_uint32("type", ps, depth, &entry->type))
-               return false;
-
-       if (!reg_parse_sep(ps, depth))
-               return false;
-
-       if (!prs_uint32("size", ps, depth, &size))
-               return false;
-
-       entry->size = size;
-
-       if (!reg_parse_sep(ps, depth))
-               return false;
-
-       if (entry->size) {
-               entry->data = TALLOC_ZERO_ARRAY(mem_ctx, uint8, entry->size);
-               if (!entry->data)
-                       return false;
-       }
-
-       if (!prs_uint8s(false, "data", ps, depth, entry->data, entry->size))
-               return false;
-
-       if (!reg_parse_term(ps, depth))
-               return false;
-
-       return true;
-}
-
 /****************************************************************
 ****************************************************************/
 
 static bool reg_parse_value(TALLOC_CTX *mem_ctx,
-                           char **value,
+                           const char **value,
                            enum gp_reg_action *action)
 {
        if (!*value) {
@@ -250,84 +102,31 @@ static bool reg_parse_value(TALLOC_CTX *mem_ctx,
 ****************************************************************/
 
 static bool gp_reg_entry_from_file_entry(TALLOC_CTX *mem_ctx,
-                                        struct gp_registry_file_entry *file_entry,
+                                        struct preg_entry *r,
                                         struct gp_registry_entry **reg_entry)
 {
        struct registry_value *data = NULL;
        struct gp_registry_entry *entry = NULL;
-       char *key = NULL;
-       char *value = NULL;
        enum gp_reg_action action = GP_REG_ACTION_NONE;
-       size_t converted_size;
 
        ZERO_STRUCTP(*reg_entry);
 
-       data = TALLOC_ZERO_P(mem_ctx, struct registry_value);
+       data = talloc_zero(mem_ctx, struct registry_value);
        if (!data)
                return false;
 
-       if (strlen_w((const smb_ucs2_t *)file_entry->key.buffer) <= 0)
-               return false;
-
-       if (!pull_ucs2_talloc(mem_ctx, &key, file_entry->key.buffer,
-                             &converted_size))
-       {
-               return false;
-       }
-
-       if (strlen_w((const smb_ucs2_t *)file_entry->value.buffer) > 0 &&
-           !pull_ucs2_talloc(mem_ctx, &value, file_entry->value.buffer,
-                             &converted_size))
-       {
-                       return false;
-       }
+       data->type = r->type;
+       data->data = data_blob_talloc(data, r->data, r->size);
 
-       if (!reg_parse_value(mem_ctx, &value, &action))
+       entry = talloc_zero(mem_ctx, struct gp_registry_entry);
+       if (!entry)
                return false;
 
-       data->type = file_entry->type;
-
-       switch (data->type) {
-               case REG_DWORD:
-                       data->v.dword = atoi((char *)file_entry->data);
-                       break;
-               case REG_BINARY:
-                       data->v.binary = data_blob_talloc(mem_ctx,
-                                                         file_entry->data,
-                                                         file_entry->size);
-                       break;
-               case REG_NONE:
-                       break;
-               case REG_SZ:
-                       if (!pull_ucs2_talloc(mem_ctx, &data->v.sz.str,
-                                             (const smb_ucs2_t *)
-                                             file_entry->data,
-                                             &data->v.sz.len)) {
-                               data->v.sz.len = -1;
-                       }
-
-                       break;
-               case REG_DWORD_BIG_ENDIAN:
-               case REG_EXPAND_SZ:
-               case REG_LINK:
-               case REG_MULTI_SZ:
-               case REG_QWORD:
-/*             case REG_DWORD_LITTLE_ENDIAN: */
-/*             case REG_QWORD_LITTLE_ENDIAN: */
-                       printf("not yet implemented: %d\n", data->type);
-                       return false;
-               default:
-                       printf("invalid reg type defined: %d\n", data->type);
-                       return false;
-
-       }
-
-       entry = TALLOC_ZERO_P(mem_ctx, struct gp_registry_entry);
-       if (!entry)
+       if (!reg_parse_value(mem_ctx, &r->valuename, &action))
                return false;
 
-       entry->key = key;
-       entry->value = value;
+       entry->key = talloc_strdup(entry, r->keyname);
+       entry->value = talloc_strdup(entry, r->valuename);
        entry->data = data;
        entry->action = action;
 
@@ -336,69 +135,23 @@ static bool gp_reg_entry_from_file_entry(TALLOC_CTX *mem_ctx,
        return true;
 }
 
-/****************************************************************
-* [key;value;type;size;data][key;value;type;size;data]...
-****************************************************************/
-
-static bool reg_parse_entries(TALLOC_CTX *mem_ctx,
-                             const char *desc,
-                             struct gp_registry_entry **entries,
-                             size_t *num_entries,
-                             prs_struct *ps,
-                             int depth)
-{
-
-       if (!entries || !num_entries)
-               return false;
-
-       prs_debug(ps, depth, desc, "reg_parse_entries");
-       depth++;
-
-       *entries = NULL;
-       *num_entries = 0;
-
-       while (ps->buffer_size > ps->data_offset) {
-
-               struct gp_registry_file_entry f_entry;
-               struct gp_registry_entry *r_entry = NULL;
-
-               if (!reg_parse_entry(mem_ctx, desc, &f_entry,
-                                    ps, depth))
-                       return false;
-
-               if (!gp_reg_entry_from_file_entry(mem_ctx,
-                                                 &f_entry,
-                                                 &r_entry))
-                       return false;
-
-               if (!add_gp_registry_entry_to_array(mem_ctx,
-                                                   r_entry,
-                                                   entries,
-                                                   num_entries))
-                       return false;
-       }
-
-       return true;
-}
-
 /****************************************************************
 ****************************************************************/
 
 static NTSTATUS reg_parse_registry(TALLOC_CTX *mem_ctx,
                                   uint32_t flags,
                                   const char *filename,
-                                  struct gp_registry_entry **entries,
-                                  size_t *num_entries)
+                                  struct gp_registry_entry **entries_p,
+                                  size_t *num_entries_p)
 {
-       uint16_t *buf = NULL;
-       size_t n = 0;
+       DATA_BLOB blob;
        NTSTATUS status;
-       prs_struct ps;
-       struct gp_registry_file *reg_file;
+       enum ndr_err_code ndr_err;
        const char *real_filename = NULL;
-
-       reg_file = TALLOC_ZERO_P(mem_ctx, struct gp_registry_file);
-       NT_STATUS_HAVE_NO_MEMORY(reg_file);
+       struct preg_file r;
+       struct gp_registry_entry *entries = NULL;
+       size_t num_entries = 0;
+       int i;
 
        status = gp_find_file(mem_ctx,
                              flags,
@@ -406,58 +159,58 @@ static NTSTATUS reg_parse_registry(TALLOC_CTX *mem_ctx,
                              GP_REGPOL_FILE,
                              &real_filename);
        if (!NT_STATUS_IS_OK(status)) {
-               TALLOC_FREE(reg_file);
                return status;
        }
 
-       buf = (uint16 *)file_load(real_filename, &n, 0, NULL);
-       if (!buf) {
-               TALLOC_FREE(reg_file);
+       blob.data = (uint8_t *)file_load(real_filename, &blob.length, 0, NULL);
+       if (!blob.data) {
                return NT_STATUS_CANNOT_LOAD_REGISTRY_FILE;
        }
 
-       if (!prs_init(&ps, n, mem_ctx, UNMARSHALL)) {
-               status = NT_STATUS_NO_MEMORY;
+       ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, &r,
+                       (ndr_pull_flags_fn_t)ndr_pull_preg_file);
+       if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+               status = ndr_map_error2ntstatus(ndr_err);
                goto out;
        }
 
-       if (!prs_copy_data_in(&ps, (char *)buf, n)) {
-               status = NT_STATUS_NO_MEMORY;
-               goto out;
-       }
-
-       prs_set_offset(&ps, 0);
-
-       if (!reg_parse_header("header", &reg_file->header, &ps, 0)) {
-               status = NT_STATUS_REGISTRY_IO_FAILED;
-               goto out;
-       }
-
-       if (reg_file->header.signature != GP_REGPOL_FILE_SIGNATURE) {
+       if (!strequal(r.header.signature, "PReg")) {
                status = NT_STATUS_INVALID_PARAMETER;
                goto out;
        }
 
-       if (reg_file->header.version != GP_REGPOL_FILE_VERSION) {
+       if (r.header.version != GP_REGPOL_FILE_VERSION) {
                status = NT_STATUS_INVALID_PARAMETER;
                goto out;
        }
 
-       if (!reg_parse_entries(mem_ctx, "entries", &reg_file->entries,
-                              &reg_file->num_entries, &ps, 0)) {
-               status = NT_STATUS_REGISTRY_IO_FAILED;
-               goto out;
+       for (i=0; i < r.num_entries; i++) {
+
+               struct gp_registry_entry *r_entry = NULL;
+
+               if (!gp_reg_entry_from_file_entry(mem_ctx,
+                                                 &r.entries[i],
+                                                 &r_entry)) {
+                       status = NT_STATUS_NO_MEMORY;
+                       goto out;
+               }
+
+               if (!add_gp_registry_entry_to_array(mem_ctx,
+                                                   r_entry,
+                                                   &entries,
+                                                   &num_entries)) {
+                       status = NT_STATUS_NO_MEMORY;
+                       goto out;
+               }
        }
 
-       *entries = reg_file->entries;
-       *num_entries = reg_file->num_entries;
+       *entries_p = entries;
+       *num_entries_p = num_entries;
 
        status = NT_STATUS_OK;
 
  out:
-       TALLOC_FREE(buf);
-       prs_mem_free(&ps);
-
+       data_blob_free(&blob);
        return status;
 }
 
@@ -465,7 +218,7 @@ static NTSTATUS reg_parse_registry(TALLOC_CTX *mem_ctx,
 ****************************************************************/
 
 static WERROR reg_apply_registry(TALLOC_CTX *mem_ctx,
-                                const struct nt_user_token *token,
+                                const struct security_token *token,
                                 struct registry_key *root_key,
                                 uint32_t flags,
                                 struct gp_registry_entry *entries,
@@ -502,7 +255,7 @@ static WERROR reg_apply_registry(TALLOC_CTX *mem_ctx,
                                                token, flags);
                if (!W_ERROR_IS_OK(werr)) {
                        DEBUG(0,("failed to apply registry: %s\n",
-                               dos_errstr(werr)));
+                               win_errstr(werr)));
                        goto done;
                }
        }
@@ -520,7 +273,7 @@ static NTSTATUS registry_process_group_policy(ADS_STRUCT *ads,
                                              TALLOC_CTX *mem_ctx,
                                              uint32_t flags,
                                              struct registry_key *root_key,
-                                             const struct nt_user_token *token,
+                                             const struct security_token *token,
                                              struct GROUP_POLICY_OBJECT *gpo,
                                              const char *extension_guid,
                                              const char *snapin_guid)
@@ -534,7 +287,7 @@ static NTSTATUS registry_process_group_policy(ADS_STRUCT *ads,
        debug_gpext_header(0, "registry_process_group_policy", flags, gpo,
                           extension_guid, snapin_guid);
 
-       status = gpo_get_unix_path(mem_ctx, gpo, &unix_path);
+       status = gpo_get_unix_path(mem_ctx, cache_path(GPO_CACHE_DIR), gpo, &unix_path);
        NT_STATUS_NOT_OK_RETURN(status);
 
        status = reg_parse_registry(mem_ctx,
@@ -554,7 +307,7 @@ static NTSTATUS registry_process_group_policy(ADS_STRUCT *ads,
                                  entries, num_entries);
        if (!W_ERROR_IS_OK(werr)) {
                DEBUG(0,("failed to apply registry: %s\n",
-                       dos_errstr(werr)));
+                       win_errstr(werr)));
                return werror_to_ntstatus(werr);
        }
 
@@ -574,7 +327,7 @@ static NTSTATUS registry_get_reg_config(TALLOC_CTX *mem_ctx,
                { NULL, REG_NONE, NULL }
        };
 
-       info = TALLOC_ZERO_P(mem_ctx, struct gp_extension_reg_info);
+       info = talloc_zero(mem_ctx, struct gp_extension_reg_info);
        NT_STATUS_HAVE_NO_MEMORY(info);
 
        status = gp_ext_info_add_entry(mem_ctx, GP_EXT_NAME,