| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | Loadable passdb module interface.
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| 4 | Copyright (C) Jelmer Vernooij 2002
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| 5 | Copyright (C) Andrew Bartlett 2002
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| 6 |
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| 7 | This program is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as published by
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| 9 | the Free Software Foundation; either version 2 of the License, or
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| 10 | (at your option) any later version.
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| 11 |
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| 12 | This program is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public License
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| 18 | along with this program; if not, write to the Free Software
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| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 20 | */
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| 21 |
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| 22 | #include "includes.h"
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| 23 |
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| 24 | #undef DBGC_CLASS
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| 25 | #define DBGC_CLASS DBGC_PASSDB
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| 26 |
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| 27 | NTSTATUS pdb_init_plugin(struct pdb_methods **pdb_method, const char *location)
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| 28 | {
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| 29 | void * dl_handle;
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| 30 | char *plugin_location, *plugin_name, *p;
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| 31 | pdb_init_function plugin_init;
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| 32 | int (*plugin_version)(void);
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| 33 |
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| 34 | if (location == NULL) {
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| 35 | DEBUG(0, ("The plugin module needs an argument!\n"));
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| 36 | return NT_STATUS_UNSUCCESSFUL;
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| 37 | }
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| 38 |
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| 39 | plugin_name = smb_xstrdup(location);
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| 40 | p = strchr(plugin_name, ':');
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| 41 | if (p) {
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| 42 | *p = 0;
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| 43 | plugin_location = p+1;
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| 44 | trim_char(plugin_location, ' ', ' ');
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| 45 | } else {
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| 46 | plugin_location = NULL;
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| 47 | }
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| 48 | trim_char(plugin_name, ' ', ' ');
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| 49 |
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| 50 | DEBUG(5, ("Trying to load sam plugin %s\n", plugin_name));
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| 51 | dl_handle = sys_dlopen(plugin_name, RTLD_NOW );
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| 52 | if (!dl_handle) {
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| 53 | DEBUG(0, ("Failed to load sam plugin %s using sys_dlopen (%s)\n", plugin_name, sys_dlerror()));
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| 54 | return NT_STATUS_UNSUCCESSFUL;
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| 55 | }
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| 56 |
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| 57 | plugin_version = sys_dlsym(dl_handle, "pdb_version");
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| 58 | if (!plugin_version) {
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| 59 | sys_dlclose(dl_handle);
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| 60 | DEBUG(0, ("Failed to find function 'pdb_version' using sys_dlsym in sam plugin %s (%s)\n", plugin_name, sys_dlerror()));
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| 61 | return NT_STATUS_UNSUCCESSFUL;
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| 62 | }
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| 63 |
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| 64 | if (plugin_version() != PASSDB_INTERFACE_VERSION) {
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| 65 | sys_dlclose(dl_handle);
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| 66 | DEBUG(0, ("Wrong PASSDB_INTERFACE_VERSION! sam plugin has version %d and version %d is needed! Please update!\n",
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| 67 | plugin_version(),PASSDB_INTERFACE_VERSION));
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| 68 | return NT_STATUS_UNSUCCESSFUL;
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| 69 | }
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| 70 |
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| 71 | plugin_init = sys_dlsym(dl_handle, "pdb_init");
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| 72 | if (!plugin_init) {
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| 73 | sys_dlclose(dl_handle);
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| 74 | DEBUG(0, ("Failed to find function 'pdb_init' using sys_dlsym in sam plugin %s (%s)\n", plugin_name, sys_dlerror()));
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| 75 | return NT_STATUS_UNSUCCESSFUL;
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| 76 | }
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| 77 |
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| 78 | DEBUG(5, ("Starting sam plugin %s with location %s\n", plugin_name, plugin_location));
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| 79 | return plugin_init(pdb_method, plugin_location);
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| 80 | }
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