2 Unix SMB/CIFS implementation.
3 Samba utility functions
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Jeremy Allison 2001-2002
6 Copyright (C) Simo Sorce 2001
7 Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2003.
8 Copyright (C) James J Myers 2003
9 Copyright (C) Jelmer Vernooij 2005-2007
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 #include "dynconfig/dynconfig.h"
27 #include "system/network.h"
28 #include "system/filesys.h"
29 #include "system/dir.h"
30 #include "param/param.h"
34 * @brief Misc utility functions
38 bool lpcfg_is_mydomain(struct loadparm_context *lp_ctx,
41 return strequal(lpcfg_workgroup(lp_ctx), domain);
44 bool lpcfg_is_my_domain_or_realm(struct loadparm_context *lp_ctx,
47 return strequal(lpcfg_workgroup(lp_ctx), domain) ||
48 strequal(lpcfg_realm(lp_ctx), domain);
52 see if a string matches either our primary or one of our secondary
53 netbios aliases. do a case insensitive match
55 bool lpcfg_is_myname(struct loadparm_context *lp_ctx, const char *name)
60 if (strcasecmp(name, lpcfg_netbios_name(lp_ctx)) == 0) {
64 aliases = lpcfg_netbios_aliases(lp_ctx);
65 for (i=0; aliases && aliases[i]; i++) {
66 if (strcasecmp(name, aliases[i]) == 0) {
76 A useful function for returning a path in the Samba lock directory.
78 char *lpcfg_lock_path(TALLOC_CTX* mem_ctx, struct loadparm_context *lp_ctx,
85 if (name[0] == 0 || name[0] == '/' || strstr(name, ":/")) {
86 return talloc_strdup(mem_ctx, name);
89 dname = talloc_strdup(mem_ctx, lpcfg_lockdir(lp_ctx));
90 trim_string(dname,"","/");
92 if (!directory_exist(dname)) {
96 fname = talloc_asprintf(mem_ctx, "%s/%s", dname, name);
104 * @brief Returns an absolute path to a file in the directory containing the current config file
106 * @param name File to find, relative to the config file directory.
108 * @retval Pointer to a talloc'ed string containing the full path.
111 char *lpcfg_config_path(TALLOC_CTX* mem_ctx, struct loadparm_context *lp_ctx,
114 char *fname, *config_dir, *p;
115 config_dir = talloc_strdup(mem_ctx, lpcfg_configfile(lp_ctx));
116 if (config_dir == NULL) {
117 config_dir = talloc_strdup(mem_ctx, lp_default_path());
119 p = strrchr(config_dir, '/');
121 talloc_free(config_dir);
122 config_dir = talloc_strdup(mem_ctx, ".");
123 if (config_dir == NULL) {
129 fname = talloc_asprintf(mem_ctx, "%s/%s", config_dir, name);
130 talloc_free(config_dir);
135 * @brief Returns an absolute path to a file in the Samba private directory.
137 * @param name File to find, relative to PRIVATEDIR.
138 * if name is not relative, then use it as-is
140 * @retval Pointer to a talloc'ed string containing the full path.
142 char *lpcfg_private_path(TALLOC_CTX* mem_ctx,
143 struct loadparm_context *lp_ctx,
150 if (name[0] == 0 || name[0] == '/' || strstr(name, ":/")) {
151 return talloc_strdup(mem_ctx, name);
153 fname = talloc_asprintf(mem_ctx, "%s/%s", lpcfg_private_dir(lp_ctx), name);
158 return a path in the smbd.tmp directory, where all temporary file
159 for smbd go. If NULL is passed for name then return the directory
162 char *smbd_tmp_path(TALLOC_CTX *mem_ctx,
163 struct loadparm_context *lp_ctx,
168 dname = lpcfg_private_path(mem_ctx, lp_ctx, "smbd.tmp");
169 if (!directory_exist(dname)) {
177 fname = talloc_asprintf(mem_ctx, "%s/%s", dname, name);
184 * Obtain the init function from a shared library file
186 init_module_fn load_module(TALLOC_CTX *mem_ctx, const char *path)
191 handle = dlopen(path, RTLD_NOW);
192 if (handle == NULL) {
193 DEBUG(0, ("Unable to open %s: %s\n", path, dlerror()));
197 init_fn = dlsym(handle, SAMBA_INIT_MODULE);
199 if (init_fn == NULL) {
200 DEBUG(0, ("Unable to find %s() in %s: %s\n",
201 SAMBA_INIT_MODULE, path, dlerror()));
202 DEBUG(1, ("Loading module '%s' failed\n", path));
207 return (init_module_fn)init_fn;
211 * Obtain list of init functions from the modules in the specified
214 init_module_fn *load_modules(TALLOC_CTX *mem_ctx, const char *path)
217 struct dirent *entry;
220 init_module_fn *ret = talloc_array(mem_ctx, init_module_fn, 2);
230 while((entry = readdir(dir))) {
231 if (ISDOT(entry->d_name) || ISDOTDOT(entry->d_name))
234 filename = talloc_asprintf(mem_ctx, "%s/%s", path, entry->d_name);
236 ret[success] = load_module(mem_ctx, filename);
238 ret = talloc_realloc(mem_ctx, ret, init_module_fn, success+2);
243 talloc_free(filename);
252 * Run the specified init functions.
254 * @return true if all functions ran successfully, false otherwise
256 bool run_init_functions(init_module_fn *fns)
264 for (i = 0; fns[i]; i++) { ret &= (bool)NT_STATUS_IS_OK(fns[i]()); }
270 * Load the initialization functions from DSO files for a specific subsystem.
272 * Will return an array of function pointers to initialization functions
275 init_module_fn *load_samba_modules(TALLOC_CTX *mem_ctx, const char *subsystem)
277 char *path = modules_path(mem_ctx, subsystem);
280 ret = load_modules(mem_ctx, path);
287 const char *lpcfg_imessaging_path(TALLOC_CTX *mem_ctx,
288 struct loadparm_context *lp_ctx)
290 return smbd_tmp_path(mem_ctx, lp_ctx, "msg");
293 struct smb_iconv_handle *smb_iconv_handle_reinit_lp(TALLOC_CTX *mem_ctx,
294 struct loadparm_context *lp_ctx,
295 struct smb_iconv_handle *old_ic)
297 return smb_iconv_handle_reinit(mem_ctx, lpcfg_dos_charset(lp_ctx),
298 lpcfg_unix_charset(lp_ctx),
299 lpcfg_parm_bool(lp_ctx, NULL, "iconv", "native", true),
304 const char *lpcfg_sam_name(struct loadparm_context *lp_ctx)
306 switch (lpcfg_server_role(lp_ctx)) {
307 case ROLE_DOMAIN_BDC:
308 case ROLE_DOMAIN_PDC:
309 return lpcfg_workgroup(lp_ctx);
311 return lpcfg_netbios_name(lp_ctx);