diff options
Diffstat (limited to 'source3/lib/smbconf')
| -rw-r--r-- | source3/lib/smbconf/smbconf.c | 726 | ||||
| -rw-r--r-- | source3/lib/smbconf/smbconf_private.h | 5 | ||||
| -rw-r--r-- | source3/lib/smbconf/smbconf_reg.c | 744 |
3 files changed, 754 insertions, 721 deletions
diff --git a/source3/lib/smbconf/smbconf.c b/source3/lib/smbconf/smbconf.c index ceed349a09..88f2141139 100644 --- a/source3/lib/smbconf/smbconf.c +++ b/source3/lib/smbconf/smbconf.c @@ -23,17 +23,17 @@ /********************************************************************** * - * Helper functions (mostly registry related) + * Helper functions * **********************************************************************/ /** * add a string to a talloced array of strings. */ -static WERROR smbconf_add_string_to_array(TALLOC_CTX *mem_ctx, - char ***array, - uint32_t count, - const char *string) + WERROR smbconf_add_string_to_array(TALLOC_CTX *mem_ctx, + char ***array, + uint32_t count, + const char *string) { char **new_array = NULL; @@ -57,342 +57,6 @@ static WERROR smbconf_add_string_to_array(TALLOC_CTX *mem_ctx, return WERR_OK; } -/** - * Open a registry key specified by "path" - */ -static WERROR smbconf_reg_open_path(TALLOC_CTX *mem_ctx, - struct smbconf_ctx *ctx, - const char *path, - uint32 desired_access, - struct registry_key **key) -{ - WERROR werr = WERR_OK; - - if (ctx == NULL) { - DEBUG(1, ("Error: configuration is not open!\n")); - werr = WERR_INVALID_PARAM; - goto done; - } - - if (ctx->token == NULL) { - DEBUG(1, ("Error: token missing from smbconf_ctx. " - "was smbconf_init() called?\n")); - werr = WERR_INVALID_PARAM; - goto done; - } - - if (path == NULL) { - DEBUG(1, ("Error: NULL path string given\n")); - werr = WERR_INVALID_PARAM; - goto done; - } - - werr = reg_open_path(mem_ctx, path, desired_access, ctx->token, key); - - if (!W_ERROR_IS_OK(werr)) { - DEBUG(1, ("Error opening registry path '%s': %s\n", - path, dos_errstr(werr))); - } - -done: - return werr; -} - -/** - * Open a subkey of KEY_SMBCONF (i.e a service) - */ -static WERROR smbconf_reg_open_service_key(TALLOC_CTX *mem_ctx, - struct smbconf_ctx *ctx, - const char *servicename, - uint32 desired_access, - struct registry_key **key) -{ - WERROR werr = WERR_OK; - char *path = NULL; - - if (servicename == NULL) { - DEBUG(3, ("Error: NULL servicename given.\n")); - werr = WERR_INVALID_PARAM; - goto done; - } - - path = talloc_asprintf(mem_ctx, "%s\\%s", KEY_SMBCONF, servicename); - if (path == NULL) { - werr = WERR_NOMEM; - goto done; - } - - werr = smbconf_reg_open_path(mem_ctx, ctx, path, desired_access, key); - -done: - TALLOC_FREE(path); - return werr; -} - -/** - * open the base key KEY_SMBCONF - */ -static WERROR smbconf_reg_open_base_key(TALLOC_CTX *mem_ctx, - struct smbconf_ctx *ctx, - uint32 desired_access, - struct registry_key **key) -{ - return smbconf_reg_open_path(mem_ctx, ctx, KEY_SMBCONF, desired_access, - key); -} - -/** - * check if a value exists in a given registry key - */ -static bool smbconf_value_exists(struct registry_key *key, const char *param) -{ - bool ret = false; - WERROR werr = WERR_OK; - TALLOC_CTX *ctx = talloc_stackframe(); - struct registry_value *value = NULL; - - werr = reg_queryvalue(ctx, key, param, &value); - if (W_ERROR_IS_OK(werr)) { - ret = true; - } - - TALLOC_FREE(ctx); - return ret; -} - -/** - * create a subkey of KEY_SMBCONF - */ -static WERROR smbconf_reg_create_service_key(TALLOC_CTX *mem_ctx, - struct smbconf_ctx *ctx, - const char * subkeyname, - struct registry_key **newkey) -{ - WERROR werr = WERR_OK; - struct registry_key *create_parent = NULL; - TALLOC_CTX *create_ctx; - enum winreg_CreateAction action = REG_ACTION_NONE; - - /* create a new talloc ctx for creation. it will hold - * the intermediate parent key (SMBCONF) for creation - * and will be destroyed when leaving this function... */ - if (!(create_ctx = talloc_stackframe())) { - werr = WERR_NOMEM; - goto done; - } - - werr = smbconf_reg_open_base_key(create_ctx, ctx, REG_KEY_WRITE, - &create_parent); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - werr = reg_createkey(mem_ctx, create_parent, subkeyname, - REG_KEY_WRITE, newkey, &action); - if (W_ERROR_IS_OK(werr) && (action != REG_CREATED_NEW_KEY)) { - DEBUG(10, ("Key '%s' already exists.\n", subkeyname)); - werr = WERR_ALREADY_EXISTS; - } - if (!W_ERROR_IS_OK(werr)) { - DEBUG(5, ("Error creating key %s: %s\n", - subkeyname, dos_errstr(werr))); - } - -done: - TALLOC_FREE(create_ctx); - return werr; -} - -/** - * add a value to a key. - */ -static WERROR smbconf_reg_set_value(struct registry_key *key, - const char *valname, - const char *valstr) -{ - struct registry_value val; - WERROR werr = WERR_OK; - char *subkeyname; - const char *canon_valname; - const char *canon_valstr; - - if (!lp_canonicalize_parameter_with_value(valname, valstr, - &canon_valname, - &canon_valstr)) - { - if (canon_valname == NULL) { - DEBUG(5, ("invalid parameter '%s' given\n", - valname)); - } else { - DEBUG(5, ("invalid value '%s' given for " - "parameter '%s'\n", valstr, valname)); - } - werr = WERR_INVALID_PARAM; - goto done; - } - - ZERO_STRUCT(val); - - val.type = REG_SZ; - val.v.sz.str = CONST_DISCARD(char *, canon_valstr); - val.v.sz.len = strlen(canon_valstr) + 1; - - if (registry_smbconf_valname_forbidden(canon_valname)) { - DEBUG(5, ("Parameter '%s' not allowed in registry.\n", - canon_valname)); - werr = WERR_INVALID_PARAM; - goto done; - } - - subkeyname = strrchr_m(key->key->name, '\\'); - if ((subkeyname == NULL) || (*(subkeyname +1) == '\0')) { - DEBUG(5, ("Invalid registry key '%s' given as " - "smbconf section.\n", key->key->name)); - werr = WERR_INVALID_PARAM; - goto done; - } - subkeyname++; - if (!strequal(subkeyname, GLOBAL_NAME) && - lp_parameter_is_global(valname)) - { - DEBUG(5, ("Global paramter '%s' not allowed in " - "service definition ('%s').\n", canon_valname, - subkeyname)); - werr = WERR_INVALID_PARAM; - goto done; - } - - werr = reg_setvalue(key, canon_valname, &val); - if (!W_ERROR_IS_OK(werr)) { - DEBUG(5, ("Error adding value '%s' to " - "key '%s': %s\n", - canon_valname, key->key->name, dos_errstr(werr))); - } - -done: - return werr; -} - -/** - * format a registry_value into a string. - * - * This is intended to be used for smbconf registry values, - * which are ar stored as REG_SZ values, so the incomplete - * handling should be ok. - */ -static char *smbconf_format_registry_value(TALLOC_CTX *mem_ctx, - struct registry_value *value) -{ - char *result = NULL; - - /* alternatively, create a new talloc context? */ - if (mem_ctx == NULL) { - return result; - } - - switch (value->type) { - case REG_DWORD: - result = talloc_asprintf(mem_ctx, "%d", value->v.dword); - break; - case REG_SZ: - case REG_EXPAND_SZ: - result = talloc_asprintf(mem_ctx, "%s", value->v.sz.str); - break; - case REG_MULTI_SZ: { - uint32 j; - for (j = 0; j < value->v.multi_sz.num_strings; j++) { - result = talloc_asprintf(mem_ctx, "%s \"%s\" ", - result, - value->v.multi_sz.strings[j]); - if (result == NULL) { - break; - } - } - break; - } - case REG_BINARY: - result = talloc_asprintf(mem_ctx, "binary (%d bytes)", - (int)value->v.binary.length); - break; - default: - result = talloc_asprintf(mem_ctx, "<unprintable>"); - break; - } - return result; -} - -/** - * Get the values of a key as a list of value names - * and a list of value strings (ordered) - */ -static WERROR smbconf_reg_get_values(TALLOC_CTX *mem_ctx, - struct registry_key *key, - uint32_t *num_values, - char ***value_names, - char ***value_strings) -{ - TALLOC_CTX *tmp_ctx = NULL; - WERROR werr = WERR_OK; - uint32_t count; - struct registry_value *valvalue = NULL; - char *valname = NULL; - char **tmp_valnames = NULL; - char **tmp_valstrings = NULL; - - if ((num_values == NULL) || (value_names == NULL) || - (value_strings == NULL)) - { - werr = WERR_INVALID_PARAM; - goto done; - } - - tmp_ctx = talloc_stackframe(); - if (tmp_ctx == NULL) { - werr = WERR_NOMEM; - goto done; - } - - for (count = 0; - W_ERROR_IS_OK(werr = reg_enumvalue(tmp_ctx, key, count, &valname, - &valvalue)); - count++) - { - char *valstring; - - werr = smbconf_add_string_to_array(tmp_ctx, - &tmp_valnames, - count, valname); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - valstring = smbconf_format_registry_value(tmp_ctx, valvalue); - werr = smbconf_add_string_to_array(tmp_ctx, &tmp_valstrings, - count, valstring); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - } - if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) { - goto done; - } - - werr = WERR_OK; - - *num_values = count; - if (count > 0) { - *value_names = talloc_move(mem_ctx, &tmp_valnames); - *value_strings = talloc_move(mem_ctx, &tmp_valstrings); - } else { - *value_names = NULL; - *value_strings = NULL; - } - -done: - TALLOC_FREE(tmp_ctx); - return werr; -} - static int smbconf_destroy_ctx(struct smbconf_ctx *ctx) { return ctx->ops->shutdown(ctx); @@ -409,386 +73,6 @@ static WERROR smbconf_global_check(struct smbconf_ctx *ctx) /********************************************************************** * - * smbconf operations: registry implementations - * - **********************************************************************/ - -/** - * initialize the registry smbconf backend - */ -static WERROR smbconf_reg_init(struct smbconf_ctx *ctx) -{ - WERROR werr = WERR_OK; - - if (!registry_init_smbconf()) { - werr = WERR_REG_IO_FAILURE; - goto done; - } - - werr = ntstatus_to_werror(registry_create_admin_token(ctx, - &(ctx->token))); - if (!W_ERROR_IS_OK(werr)) { - DEBUG(1, ("Error creating admin token\n")); - goto done; - } - -done: - return werr; -} - -static int smbconf_reg_shutdown(struct smbconf_ctx *ctx) -{ - return regdb_close(); -} - -static WERROR smbconf_reg_open(struct smbconf_ctx *ctx) -{ - return regdb_open(); -} - -static int smbconf_reg_close(struct smbconf_ctx *ctx) -{ - return regdb_close(); -} - -/** - * Get the change sequence number of the given service/parameter. - * service and parameter strings may be NULL. - */ -static void smbconf_reg_get_csn(struct smbconf_ctx *ctx, - struct smbconf_csn *csn, - const char *service, const char *param) -{ - if (csn == NULL) { - return; - } - csn->csn = (uint64_t)regdb_get_seqnum(); -} - -/** - * Drop the whole configuration (restarting empty) - registry version - */ -static WERROR smbconf_reg_drop(struct smbconf_ctx *ctx) -{ - char *path, *p; - WERROR werr = WERR_OK; - struct registry_key *parent_key = NULL; - struct registry_key *new_key = NULL; - TALLOC_CTX* mem_ctx = talloc_stackframe(); - enum winreg_CreateAction action; - - path = talloc_strdup(mem_ctx, KEY_SMBCONF); - if (path == NULL) { - werr = WERR_NOMEM; - goto done; - } - p = strrchr(path, '\\'); - *p = '\0'; - werr = smbconf_reg_open_path(mem_ctx, ctx, path, REG_KEY_WRITE, - &parent_key); - - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - werr = reg_deletekey_recursive(mem_ctx, parent_key, p+1); - - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - werr = reg_createkey(mem_ctx, parent_key, p+1, REG_KEY_WRITE, - &new_key, &action); - -done: - TALLOC_FREE(mem_ctx); - return werr; -} - -/** - * get the list of share names defined in the configuration. - * registry version. - */ -static WERROR smbconf_reg_get_share_names(struct smbconf_ctx *ctx, - TALLOC_CTX *mem_ctx, - uint32_t *num_shares, - char ***share_names) -{ - uint32_t count; - uint32_t added_count = 0; - TALLOC_CTX *tmp_ctx = NULL; - WERROR werr = WERR_OK; - struct registry_key *key = NULL; - char *subkey_name = NULL; - char **tmp_share_names = NULL; - - if ((num_shares == NULL) || (share_names == NULL)) { - werr = WERR_INVALID_PARAM; - goto done; - } - - tmp_ctx = talloc_stackframe(); - if (tmp_ctx == NULL) { - werr = WERR_NOMEM; - goto done; - } - - /* make sure "global" is always listed first */ - if (smbconf_share_exists(ctx, GLOBAL_NAME)) { - werr = smbconf_add_string_to_array(tmp_ctx, &tmp_share_names, - 0, GLOBAL_NAME); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - added_count++; - } - - werr = smbconf_reg_open_base_key(tmp_ctx, ctx, - SEC_RIGHTS_ENUM_SUBKEYS, &key); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - for (count = 0; - W_ERROR_IS_OK(werr = reg_enumkey(tmp_ctx, key, count, - &subkey_name, NULL)); - count++) - { - if (strequal(subkey_name, GLOBAL_NAME)) { - continue; - } - - werr = smbconf_add_string_to_array(tmp_ctx, - &tmp_share_names, - added_count, - subkey_name); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - added_count++; - } - if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) { - goto done; - } - werr = WERR_OK; - - *num_shares = added_count; - if (added_count > 0) { - *share_names = talloc_move(mem_ctx, &tmp_share_names); - } else { - *share_names = NULL; - } - -done: - TALLOC_FREE(tmp_ctx); - return werr; -} - -/** - * check if a share/service of a given name exists - registry version - */ -static bool smbconf_reg_share_exists(struct smbconf_ctx *ctx, - const char *servicename) -{ - bool ret = false; - WERROR werr = WERR_OK; - TALLOC_CTX *mem_ctx = talloc_stackframe(); - struct registry_key *key = NULL; - - werr = smbconf_reg_open_service_key(mem_ctx, ctx, servicename, - REG_KEY_READ, &key); - if (W_ERROR_IS_OK(werr)) { - ret = true; - } - - TALLOC_FREE(mem_ctx); - return ret; -} - -/** - * Add a service if it does not already exist - registry version - */ -static WERROR smbconf_reg_create_share(struct smbconf_ctx *ctx, - const char *servicename) -{ - WERROR werr; - TALLOC_CTX *mem_ctx = talloc_stackframe(); - struct registry_key *key = NULL; - - werr = smbconf_reg_create_service_key(mem_ctx, ctx, servicename, &key); - - TALLOC_FREE(mem_ctx); - return werr; -} - -/** - * get a definition of a share (service) from configuration. - */ -static WERROR smbconf_reg_get_share(struct smbconf_ctx *ctx, - TALLOC_CTX *mem_ctx, - const char *servicename, - uint32_t *num_params, - char ***param_names, char ***param_values) -{ - WERROR werr = WERR_OK; - struct registry_key *key = NULL; - - werr = smbconf_reg_open_service_key(mem_ctx, ctx, servicename, - REG_KEY_READ, &key); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - werr = smbconf_reg_get_values(mem_ctx, key, num_params, - param_names, param_values); - -done: - TALLOC_FREE(key); - return werr; -} - -/** - * delete a service from configuration - */ -static WERROR smbconf_reg_delete_share(struct smbconf_ctx *ctx, - const char *servicename) -{ - WERROR werr = WERR_OK; - struct registry_key *key = NULL; - TALLOC_CTX *mem_ctx = talloc_stackframe(); - - werr = smbconf_reg_open_base_key(mem_ctx, ctx, REG_KEY_WRITE, &key); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - werr = reg_deletekey_recursive(key, key, servicename); - -done: - TALLOC_FREE(mem_ctx); - return werr; -} - -/** - * set a configuration parameter to the value provided. - */ -static WERROR smbconf_reg_set_parameter(struct smbconf_ctx *ctx, - const char *service, - const char *param, - const char *valstr) -{ - WERROR werr; - struct registry_key *key = NULL; - TALLOC_CTX *mem_ctx = talloc_stackframe(); - - werr = smbconf_reg_open_service_key(mem_ctx, ctx, service, - REG_KEY_WRITE, &key); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - werr = smbconf_reg_set_value(key, param, valstr); - -done: - TALLOC_FREE(mem_ctx); - return werr; -} - -/** - * get the value of a configuration parameter as a string - */ -static WERROR smbconf_reg_get_parameter(struct smbconf_ctx *ctx, - TALLOC_CTX *mem_ctx, - const char *service, - const char *param, - char **valstr) -{ - WERROR werr = WERR_OK; - struct registry_key *key = NULL; - struct registry_value *value = NULL; - - werr = smbconf_reg_open_service_key(mem_ctx, ctx, service, - REG_KEY_READ, &key); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - if (!smbconf_value_exists(key, param)) { - werr = WERR_INVALID_PARAM; - goto done; - } - - werr = reg_queryvalue(mem_ctx, key, param, &value); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - *valstr = smbconf_format_registry_value(mem_ctx, value); - - if (*valstr == NULL) { - werr = WERR_NOMEM; - } - -done: - TALLOC_FREE(key); - TALLOC_FREE(value); - return werr; -} - -/** - * delete a parameter from configuration - */ -static WERROR smbconf_reg_delete_parameter(struct smbconf_ctx *ctx, - const char *service, - const char *param) -{ - struct registry_key *key = NULL; - WERROR werr = WERR_OK; - TALLOC_CTX *mem_ctx = talloc_stackframe(); - - werr = smbconf_reg_open_service_key(mem_ctx, ctx, service, - REG_KEY_ALL, &key); - if (!W_ERROR_IS_OK(werr)) { - goto done; - } - - if (!smbconf_value_exists(key, param)) { - werr = WERR_INVALID_PARAM; - goto done; - } - - werr = reg_deletevalue(key, param); - -done: - TALLOC_FREE(mem_ctx); - return werr; -} - -struct smbconf_ops smbconf_ops_reg = { - .init = smbconf_reg_init, - .shutdown = smbconf_reg_shutdown, - .open_conf = smbconf_reg_open, - .close_conf = smbconf_reg_close, - .get_csn = smbconf_reg_get_csn, - .drop = smbconf_reg_drop, - .get_share_names = smbconf_reg_get_share_names, - .share_exists = smbconf_reg_share_exists, - .create_share = smbconf_reg_create_share, - .get_share = smbconf_reg_get_share, - .delete_share = smbconf_reg_delete_share, - .set_parameter = smbconf_reg_set_parameter, - .get_parameter = smbconf_reg_get_parameter, - .delete_parameter = smbconf_reg_delete_parameter -}; - -WERROR smbconf_init_reg(TALLOC_CTX *mem_ctx, struct smbconf_ctx **conf_ctx) -{ - return smbconf_init(mem_ctx, conf_ctx, &smbconf_ops_reg); -} - - -/********************************************************************** - * * The actual libsmbconf API functions that are exported. * **********************************************************************/ diff --git a/source3/lib/smbconf/smbconf_private.h b/source3/lib/smbconf/smbconf_private.h index f10bf0f271..008ae97601 100644 --- a/source3/lib/smbconf/smbconf_private.h +++ b/source3/lib/smbconf/smbconf_private.h @@ -58,6 +58,11 @@ struct smbconf_ctx { struct smbconf_ops *ops; }; +WERROR smbconf_add_string_to_array(TALLOC_CTX *mem_ctx, + char ***array, + uint32_t count, + const char *string); + WERROR smbconf_init(TALLOC_CTX *mem_ctx, struct smbconf_ctx **conf_ctx, struct smbconf_ops *ops); diff --git a/source3/lib/smbconf/smbconf_reg.c b/source3/lib/smbconf/smbconf_reg.c new file mode 100644 index 0000000000..d260be8552 --- /dev/null +++ b/source3/lib/smbconf/smbconf_reg.c @@ -0,0 +1,744 @@ +/* + * Unix SMB/CIFS implementation. + * libsmbconf - Samba configuration library, registry backend + * Copyright (C) Michael Adam 2008 + * + * 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 "smbconf_private.h" + + +/********************************************************************** + * + * helper functions + * + **********************************************************************/ + +/** + * Open a registry key specified by "path" + */ +static WERROR smbconf_reg_open_path(TALLOC_CTX *mem_ctx, + struct smbconf_ctx *ctx, + const char *path, + uint32 desired_access, + struct registry_key **key) +{ + WERROR werr = WERR_OK; + + if (ctx == NULL) { + DEBUG(1, ("Error: configuration is not open!\n")); + werr = WERR_INVALID_PARAM; + goto done; + } + + if (ctx->token == NULL) { + DEBUG(1, ("Error: token missing from smbconf_ctx. " + "was smbconf_init() called?\n")); + werr = WERR_INVALID_PARAM; + goto done; + } + + if (path == NULL) { + DEBUG(1, ("Error: NULL path string given\n")); + werr = WERR_INVALID_PARAM; + goto done; + } + + werr = reg_open_path(mem_ctx, path, desired_access, ctx->token, key); + + if (!W_ERROR_IS_OK(werr)) { + DEBUG(1, ("Error opening registry path '%s': %s\n", + path, dos_errstr(werr))); + } + +done: + return werr; +} + +/** + * Open a subkey of KEY_SMBCONF (i.e a service) + */ +static WERROR smbconf_reg_open_service_key(TALLOC_CTX *mem_ctx, + struct smbconf_ctx *ctx, + const char *servicename, + uint32 desired_access, + struct registry_key **key) +{ + WERROR werr = WERR_OK; + char *path = NULL; + + if (servicename == NULL) { + DEBUG(3, ("Error: NULL servicename given.\n")); + werr = WERR_INVALID_PARAM; + goto done; + } + + path = talloc_asprintf(mem_ctx, "%s\\%s", KEY_SMBCONF, servicename); + if (path == NULL) { + werr = WERR_NOMEM; + goto done; + } + + werr = smbconf_reg_open_path(mem_ctx, ctx, path, desired_access, key); + +done: + TALLOC_FREE(path); + return werr; +} + +/** + * open the base key KEY_SMBCONF + */ +static WERROR smbconf_reg_open_base_key(TALLOC_CTX *mem_ctx, + struct smbconf_ctx *ctx, + uint32 desired_access, + struct registry_key **key) +{ + return smbconf_reg_open_path(mem_ctx, ctx, KEY_SMBCONF, desired_access, + key); +} + +/** + * check if a value exists in a given registry key + */ +static bool smbconf_value_exists(struct registry_key *key, const char *param) +{ + bool ret = false; + WERROR werr = WERR_OK; + TALLOC_CTX *ctx = talloc_stackframe(); + struct registry_value *value = NULL; + + werr = reg_queryvalue(ctx, key, param, &value); + if (W_ERROR_IS_OK(werr)) { + ret = true; + } + + TALLOC_FREE(ctx); + return ret; +} + +/** + * create a subkey of KEY_SMBCONF + */ +static WERROR smbconf_reg_create_service_key(TALLOC_CTX *mem_ctx, + struct smbconf_ctx *ctx, + const char * subkeyname, + struct registry_key **newkey) +{ + WERROR werr = WERR_OK; + struct registry_key *create_parent = NULL; + TALLOC_CTX *create_ctx; + enum winreg_CreateAction action = REG_ACTION_NONE; + + /* create a new talloc ctx for creation. it will hold + * the intermediate parent key (SMBCONF) for creation + * and will be destroyed when leaving this function... */ + if (!(create_ctx = talloc_stackframe())) { + werr = WERR_NOMEM; + goto done; + } + + werr = smbconf_reg_open_base_key(create_ctx, ctx, REG_KEY_WRITE, + &create_parent); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + werr = reg_createkey(mem_ctx, create_parent, subkeyname, + REG_KEY_WRITE, newkey, &action); + if (W_ERROR_IS_OK(werr) && (action != REG_CREATED_NEW_KEY)) { + DEBUG(10, ("Key '%s' already exists.\n", subkeyname)); + werr = WERR_ALREADY_EXISTS; + } + if (!W_ERROR_IS_OK(werr)) { + DEBUG(5, ("Error creating key %s: %s\n", + subkeyname, dos_errstr(werr))); + } + +done: + TALLOC_FREE(create_ctx); + return werr; +} + +/** + * add a value to a key. + */ +static WERROR smbconf_reg_set_value(struct registry_key *key, + const char *valname, + const char *valstr) +{ + struct registry_value val; + WERROR werr = WERR_OK; + char *subkeyname; + const char *canon_valname; + const char *canon_valstr; + + if (!lp_canonicalize_parameter_with_value(valname, valstr, + &canon_valname, + &canon_valstr)) + { + if (canon_valname == NULL) { + DEBUG(5, ("invalid parameter '%s' given\n", + valname)); + } else { + DEBUG(5, ("invalid value '%s' given for " + "parameter '%s'\n", valstr, valname)); + } + werr = WERR_INVALID_PARAM; + goto done; + } + + ZERO_STRUCT(val); + + val.type = REG_SZ; + val.v.sz.str = CONST_DISCARD(char *, canon_valstr); + val.v.sz.len = strlen(canon_valstr) + 1; + + if (registry_smbconf_valname_forbidden(canon_valname)) { + DEBUG(5, ("Parameter '%s' not allowed in registry.\n", + canon_valname)); + werr = WERR_INVALID_PARAM; + goto done; + } + + subkeyname = strrchr_m(key->key->name, '\\'); + if ((subkeyname == NULL) || (*(subkeyname +1) == '\0')) { + DEBUG(5, ("Invalid registry key '%s' given as " + "smbconf section.\n", key->key->name)); + werr = WERR_INVALID_PARAM; + goto done; + } + subkeyname++; + if (!strequal(subkeyname, GLOBAL_NAME) && + lp_parameter_is_global(valname)) + { + DEBUG(5, ("Global paramter '%s' not allowed in " + "service definition ('%s').\n", canon_valname, + subkeyname)); + werr = WERR_INVALID_PARAM; + goto done; + } + + werr = reg_setvalue(key, canon_valname, &val); + if (!W_ERROR_IS_OK(werr)) { + DEBUG(5, ("Error adding value '%s' to " + "key '%s': %s\n", + canon_valname, key->key->name, dos_errstr(werr))); + } + +done: + return werr; +} + +/** + * format a registry_value into a string. + * + * This is intended to be used for smbconf registry values, + * which are ar stored as REG_SZ values, so the incomplete + * handling should be ok. + */ +static char *smbconf_format_registry_value(TALLOC_CTX *mem_ctx, + struct registry_value *value) +{ + char *result = NULL; + + /* alternatively, create a new talloc context? */ + if (mem_ctx == NULL) { + return result; + } + + switch (value->type) { + case REG_DWORD: + result = talloc_asprintf(mem_ctx, "%d", value->v.dword); + break; + case REG_SZ: + case REG_EXPAND_SZ: + result = talloc_asprintf(mem_ctx, "%s", value->v.sz.str); + break; + case REG_MULTI_SZ: { + uint32 j; + for (j = 0; j < value->v.multi_sz.num_strings; j++) { + result = talloc_asprintf(mem_ctx, "%s \"%s\" ", + result, + value->v.multi_sz.strings[j]); + if (result == NULL) { + break; + } + } + break; + } + case REG_BINARY: + result = talloc_asprintf(mem_ctx, "binary (%d bytes)", + (int)value->v.binary.length); + break; + default: + result = talloc_asprintf(mem_ctx, "<unprintable>"); + break; + } + return result; +} + +/** + * Get the values of a key as a list of value names + * and a list of value strings (ordered) + */ +static WERROR smbconf_reg_get_values(TALLOC_CTX *mem_ctx, + struct registry_key *key, + uint32_t *num_values, + char ***value_names, + char ***value_strings) +{ + TALLOC_CTX *tmp_ctx = NULL; + WERROR werr = WERR_OK; + uint32_t count; + struct registry_value *valvalue = NULL; + char *valname = NULL; + char **tmp_valnames = NULL; + char **tmp_valstrings = NULL; + + if ((num_values == NULL) || (value_names == NULL) || + (value_strings == NULL)) + { + werr = WERR_INVALID_PARAM; + goto done; + } + + tmp_ctx = talloc_stackframe(); + if (tmp_ctx == NULL) { + werr = WERR_NOMEM; + goto done; + } + + for (count = 0; + W_ERROR_IS_OK(werr = reg_enumvalue(tmp_ctx, key, count, &valname, + &valvalue)); + count++) + { + char *valstring; + + werr = smbconf_add_string_to_array(tmp_ctx, + &tmp_valnames, + count, valname); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + valstring = smbconf_format_registry_value(tmp_ctx, valvalue); + werr = smbconf_add_string_to_array(tmp_ctx, &tmp_valstrings, + count, valstring); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + } + if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) { + goto done; + } + + werr = WERR_OK; + + *num_values = count; + if (count > 0) { + *value_names = talloc_move(mem_ctx, &tmp_valnames); + *value_strings = talloc_move(mem_ctx, &tmp_valstrings); + } else { + *value_names = NULL; + *value_strings = NULL; + } + +done: + TALLOC_FREE(tmp_ctx); + return werr; +} + +/********************************************************************** + * + * smbconf operations: registry implementations + * + **********************************************************************/ + +/** + * initialize the registry smbconf backend + */ +static WERROR smbconf_reg_init(struct smbconf_ctx *ctx) +{ + WERROR werr = WERR_OK; + + if (!registry_init_smbconf()) { + werr = WERR_REG_IO_FAILURE; + goto done; + } + + werr = ntstatus_to_werror(registry_create_admin_token(ctx, + &(ctx->token))); + if (!W_ERROR_IS_OK(werr)) { + DEBUG(1, ("Error creating admin token\n")); + goto done; + } + +done: + return werr; +} + +static int smbconf_reg_shutdown(struct smbconf_ctx *ctx) +{ + return regdb_close(); +} + +static WERROR smbconf_reg_open(struct smbconf_ctx *ctx) +{ + return regdb_open(); +} + +static int smbconf_reg_close(struct smbconf_ctx *ctx) +{ + return regdb_close(); +} + +/** + * Get the change sequence number of the given service/parameter. + * service and parameter strings may be NULL. + */ +static void smbconf_reg_get_csn(struct smbconf_ctx *ctx, + struct smbconf_csn *csn, + const char *service, const char *param) +{ + if (csn == NULL) { + return; + } + csn->csn = (uint64_t)regdb_get_seqnum(); +} + +/** + * Drop the whole configuration (restarting empty) - registry version + */ +static WERROR smbconf_reg_drop(struct smbconf_ctx *ctx) +{ + char *path, *p; + WERROR werr = WERR_OK; + struct registry_key *parent_key = NULL; + struct registry_key *new_key = NULL; + TALLOC_CTX* mem_ctx = talloc_stackframe(); + enum winreg_CreateAction action; + + path = talloc_strdup(mem_ctx, KEY_SMBCONF); + if (path == NULL) { + werr = WERR_NOMEM; + goto done; + } + p = strrchr(path, '\\'); + *p = '\0'; + werr = smbconf_reg_open_path(mem_ctx, ctx, path, REG_KEY_WRITE, + &parent_key); + + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + werr = reg_deletekey_recursive(mem_ctx, parent_key, p+1); + + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + werr = reg_createkey(mem_ctx, parent_key, p+1, REG_KEY_WRITE, + &new_key, &action); + +done: + TALLOC_FREE(mem_ctx); + return werr; +} + +/** + * get the list of share names defined in the configuration. + * registry version. + */ +static WERROR smbconf_reg_get_share_names(struct smbconf_ctx *ctx, + TALLOC_CTX *mem_ctx, + uint32_t *num_shares, + char ***share_names) +{ + uint32_t count; + uint32_t added_count = 0; + TALLOC_CTX *tmp_ctx = NULL; + WERROR werr = WERR_OK; + struct registry_key *key = NULL; + char *subkey_name = NULL; + char **tmp_share_names = NULL; + + if ((num_shares == NULL) || (share_names == NULL)) { + werr = WERR_INVALID_PARAM; + goto done; + } + + tmp_ctx = talloc_stackframe(); + if (tmp_ctx == NULL) { + werr = WERR_NOMEM; + goto done; + } + + /* make sure "global" is always listed first */ + if (smbconf_share_exists(ctx, GLOBAL_NAME)) { + werr = smbconf_add_string_to_array(tmp_ctx, &tmp_share_names, + 0, GLOBAL_NAME); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + added_count++; + } + + werr = smbconf_reg_open_base_key(tmp_ctx, ctx, + SEC_RIGHTS_ENUM_SUBKEYS, &key); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + for (count = 0; + W_ERROR_IS_OK(werr = reg_enumkey(tmp_ctx, key, count, + &subkey_name, NULL)); + count++) + { + if (strequal(subkey_name, GLOBAL_NAME)) { + continue; + } + + werr = smbconf_add_string_to_array(tmp_ctx, + &tmp_share_names, + added_count, + subkey_name); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + added_count++; + } + if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) { + goto done; + } + werr = WERR_OK; + + *num_shares = added_count; + if (added_count > 0) { + *share_names = talloc_move(mem_ctx, &tmp_share_names); + } else { + *share_names = NULL; + } + +done: + TALLOC_FREE(tmp_ctx); + return werr; +} + +/** + * check if a share/service of a given name exists - registry version + */ +static bool smbconf_reg_share_exists(struct smbconf_ctx *ctx, + const char *servicename) +{ + bool ret = false; + WERROR werr = WERR_OK; + TALLOC_CTX *mem_ctx = talloc_stackframe(); + struct registry_key *key = NULL; + + werr = smbconf_reg_open_service_key(mem_ctx, ctx, servicename, + REG_KEY_READ, &key); + if (W_ERROR_IS_OK(werr)) { + ret = true; + } + + TALLOC_FREE(mem_ctx); + return ret; +} + +/** + * Add a service if it does not already exist - registry version + */ +static WERROR smbconf_reg_create_share(struct smbconf_ctx *ctx, + const char *servicename) +{ + WERROR werr; + TALLOC_CTX *mem_ctx = talloc_stackframe(); + struct registry_key *key = NULL; + + werr = smbconf_reg_create_service_key(mem_ctx, ctx, servicename, &key); + + TALLOC_FREE(mem_ctx); + return werr; +} + +/** + * get a definition of a share (service) from configuration. + */ +static WERROR smbconf_reg_get_share(struct smbconf_ctx *ctx, + TALLOC_CTX *mem_ctx, + const char *servicename, + uint32_t *num_params, + char ***param_names, char ***param_values) +{ + WERROR werr = WERR_OK; + struct registry_key *key = NULL; + + werr = smbconf_reg_open_service_key(mem_ctx, ctx, servicename, + REG_KEY_READ, &key); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + werr = smbconf_reg_get_values(mem_ctx, key, num_params, + param_names, param_values); + +done: + TALLOC_FREE(key); + return werr; +} + +/** + * delete a service from configuration + */ +static WERROR smbconf_reg_delete_share(struct smbconf_ctx *ctx, + const char *servicename) +{ + WERROR werr = WERR_OK; + struct registry_key *key = NULL; + TALLOC_CTX *mem_ctx = talloc_stackframe(); + + werr = smbconf_reg_open_base_key(mem_ctx, ctx, REG_KEY_WRITE, &key); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + werr = reg_deletekey_recursive(key, key, servicename); + +done: + TALLOC_FREE(mem_ctx); + return werr; +} + +/** + * set a configuration parameter to the value provided. + */ +static WERROR smbconf_reg_set_parameter(struct smbconf_ctx *ctx, + const char *service, + const char *param, + const char *valstr) +{ + WERROR werr; + struct registry_key *key = NULL; + TALLOC_CTX *mem_ctx = talloc_stackframe(); + + werr = smbconf_reg_open_service_key(mem_ctx, ctx, service, + REG_KEY_WRITE, &key); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + werr = smbconf_reg_set_value(key, param, valstr); + +done: + TALLOC_FREE(mem_ctx); + return werr; +} + +/** + * get the value of a configuration parameter as a string + */ +static WERROR smbconf_reg_get_parameter(struct smbconf_ctx *ctx, + TALLOC_CTX *mem_ctx, + const char *service, + const char *param, + char **valstr) +{ + WERROR werr = WERR_OK; + struct registry_key *key = NULL; + struct registry_value *value = NULL; + + werr = smbconf_reg_open_service_key(mem_ctx, ctx, service, + REG_KEY_READ, &key); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + if (!smbconf_value_exists(key, param)) { + werr = WERR_INVALID_PARAM; + goto done; + } + + werr = reg_queryvalue(mem_ctx, key, param, &value); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + *valstr = smbconf_format_registry_value(mem_ctx, value); + + if (*valstr == NULL) { + werr = WERR_NOMEM; + } + +done: + TALLOC_FREE(key); + TALLOC_FREE(value); + return werr; +} + +/** + * delete a parameter from configuration + */ +static WERROR smbconf_reg_delete_parameter(struct smbconf_ctx *ctx, + const char *service, + const char *param) +{ + struct registry_key *key = NULL; + WERROR werr = WERR_OK; + TALLOC_CTX *mem_ctx = talloc_stackframe(); + + werr = smbconf_reg_open_service_key(mem_ctx, ctx, service, + REG_KEY_ALL, &key); + if (!W_ERROR_IS_OK(werr)) { + goto done; + } + + if (!smbconf_value_exists(key, param)) { + werr = WERR_INVALID_PARAM; + goto done; + } + + werr = reg_deletevalue(key, param); + +done: + TALLOC_FREE(mem_ctx); + return werr; +} + +struct smbconf_ops smbconf_ops_reg = { + .init = smbconf_reg_init, + .shutdown = smbconf_reg_shutdown, + .open_conf = smbconf_reg_open, + .close_conf = smbconf_reg_close, + .get_csn = smbconf_reg_get_csn, + .drop = smbconf_reg_drop, + .get_share_names = smbconf_reg_get_share_names, + .share_exists = smbconf_reg_share_exists, + .create_share = smbconf_reg_create_share, + .get_share = smbconf_reg_get_share, + .delete_share = smbconf_reg_delete_share, + .set_parameter = smbconf_reg_set_parameter, + .get_parameter = smbconf_reg_get_parameter, + .delete_parameter = smbconf_reg_delete_parameter +}; + +WERROR smbconf_init_reg(TALLOC_CTX *mem_ctx, struct smbconf_ctx **conf_ctx) +{ + return smbconf_init(mem_ctx, conf_ctx, &smbconf_ops_reg); +} + |