*
* $Id$
*
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
- * Copyright 1999 Gerald Combs
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
# include "config.h"
#endif
-#ifdef NEED_SNPRINTF_H
-# include "snprintf.h"
-#endif
-
#include "plugins.h"
+#include <stdio.h>
+
+/* linked list of Lua plugins */
+wslua_plugin *wslua_plugin_list = NULL;
#ifdef HAVE_PLUGINS
#include <direct.h>
#endif
-#include <string.h>
#include <stdlib.h>
+#include <string.h>
#include <errno.h>
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "filesystem.h"
-
-#ifdef PLUGINS_NEED_ADDRESS_TABLE
-#include "conversation.h"
-#include "reassemble.h"
-#include <epan/prefs.h>
-#include <epan/dissectors/packet-giop.h>
-#include <epan/dissectors/packet-tpkt.h>
-#include <epan/dissectors/packet-tcp.h>
-#include <epan/dissectors/packet-rpc.h>
-#include "tap.h"
-#include "asn1.h"
-#include <epan/dissectors/packet-per.h>
-#include <epan/dissectors/packet-ber.h>
-#include <epan/dissectors/packet-rtp.h>
-#include <epan/dissectors/packet-rtcp.h>
-#include "xdlc.h"
-#include <epan/crc16.h>
+#include <wsutil/privileges.h>
+#include <wsutil/file_util.h>
#include "report_err.h"
-#include "plugins/plugin_table.h"
-static plugin_address_table_t patable = {
-/* file generated by plugin_gen.py */
-#include "plugins/Xass-list"
-};
-#endif
/* linked list of all plugins */
-plugin *plugin_list;
-
-#define PLUGINS_DIR_NAME "plugins"
+plugin *plugin_list = NULL;
/*
* add a new plugin to the list
*/
static int
add_plugin(void *handle, gchar *name, gchar *version,
- void (*reg_handoff)(void))
+ void (*register_protoinfo)(void),
+ void (*reg_handoff)(void),
+ void (*register_tap_listener)(void),
+ void (*register_wtap_module)(void),
+ void (*register_codec_module)(void))
{
plugin *new_plug, *pt_plug;
pt_plug = plugin_list;
if (!pt_plug) /* the list is empty */
{
- new_plug = (plugin *)g_malloc(sizeof(plugin));
- if (new_plug == NULL) return ENOMEM;
+ new_plug = (plugin *)g_malloc(sizeof(plugin));
+ if (new_plug == NULL)
+ return ENOMEM;
plugin_list = new_plug;
}
else
{
- while (1)
- {
- /* check if the same name/version is already registered */
- if (!strcmp(pt_plug->name, name) &&
- !strcmp(pt_plug->version, version))
- {
- return EEXIST;
- }
-
- /* we found the last plugin in the list */
- if (pt_plug->next == NULL) break;
-
- pt_plug = pt_plug->next;
- }
- new_plug = (plugin *)g_malloc(sizeof(plugin));
- if (new_plug == NULL) return ENOMEM;
- pt_plug->next = new_plug;
+ while (1)
+ {
+ /* check if the same name/version is already registered */
+ if (!strcmp(pt_plug->name, name) &&
+ !strcmp(pt_plug->version, version))
+ {
+ return EEXIST;
+ }
+
+ /* we found the last plugin in the list */
+ if (pt_plug->next == NULL)
+ break;
+
+ pt_plug = pt_plug->next;
+ }
+ new_plug = (plugin *)g_malloc(sizeof(plugin));
+ if (new_plug == NULL)
+ return ENOMEM;
+ pt_plug->next = new_plug;
}
new_plug->handle = handle;
new_plug->name = name;
new_plug->version = version;
+ new_plug->register_protoinfo = register_protoinfo;
new_plug->reg_handoff = reg_handoff;
+ new_plug->register_tap_listener = register_tap_listener;
+ new_plug->register_wtap_module = register_wtap_module;
+ new_plug->register_codec_module = register_codec_module;
new_plug->next = NULL;
+
return 0;
}
static void
plugins_scan_dir(const char *dirname)
{
-#define FILENAME_LEN 1024
-#if GLIB_MAJOR_VERSION < 2
- gchar *hack_path; /* pathname used to construct lt_lib_ext */
- gchar *lt_lib_ext; /* extension for loadable modules */
- DIR *dir; /* scanned directory */
- struct dirent *file; /* current file */
- gchar *name;
-#else /* GLIB 2 */
- GDir *dir; /* scanned directory */
- GError **dummy;
- const gchar *name;
-#endif
+#define FILENAME_LEN 1024
+ WS_DIR *dir; /* scanned directory */
+ WS_DIRENT *file; /* current file */
+ const char *name;
gchar filename[FILENAME_LEN]; /* current file name */
- GModule *handle; /* handle returned by dlopen */
+ GModule *handle; /* handle returned by g_module_open */
gchar *version;
- void (*init)(void *);
+ gpointer gp;
+ void (*register_protoinfo)(void);
void (*reg_handoff)(void);
+ void (*register_tap_listener)(void);
+ void (*register_wtap_module)(void);
+ void (*register_codec_module)(void);
+
gchar *dot;
int cr;
-#if GLIB_MAJOR_VERSION < 2
- /*
- * We find the extension used on this platform for loadable modules
- * by the sneaky hack of calling "g_module_build_path" to build
- * the pathname for a module with an empty directory name and
- * empty module name, and then search for the last "." and use
- * everything from the last "." on.
- */
- hack_path = g_module_build_path("", "");
- lt_lib_ext = strrchr(hack_path, '.');
- if (lt_lib_ext == NULL)
+ if ((dir = ws_dir_open(dirname, 0, NULL)) != NULL)
{
- /*
- * Does this mean there *is* no extension? Assume so.
- *
- * XXX - the code below assumes that all loadable modules have
- * an extension....
- */
- lt_lib_ext = "";
+ while ((file = ws_dir_read_name(dir)) != NULL)
+ {
+ name = ws_dir_get_name(file);
+
+ /*
+ * GLib 2.x defines G_MODULE_SUFFIX as the extension used on
+ * this platform for loadable modules.
+ */
+ /* skip anything but files with G_MODULE_SUFFIX */
+ dot = strrchr(name, '.');
+ if (dot == NULL || strcmp(dot+1, G_MODULE_SUFFIX) != 0)
+ continue;
+
+ g_snprintf(filename, FILENAME_LEN, "%s" G_DIR_SEPARATOR_S "%s",
+ dirname, name);
+ if ((handle = g_module_open(filename, 0)) == NULL)
+ {
+ report_failure("Couldn't load module %s: %s", filename,
+ g_module_error());
+ continue;
+ }
+
+ if (!g_module_symbol(handle, "version", &gp))
+ {
+ report_failure("The plugin %s has no version symbol", name);
+ g_module_close(handle);
+ continue;
+ }
+ version = gp;
+
+ /*
+ * Do we have a register routine?
+ */
+ if (g_module_symbol(handle, "plugin_register", &gp))
+ {
+ /*
+ * Yes - this plugin includes one or more dissectors.
+ */
+ register_protoinfo = gp;
+ }
+ else
+ {
+ /*
+ * No - no dissectors.
+ */
+ register_protoinfo = NULL;
+ }
+
+ /*
+ * Do we have a reg_handoff routine?
+ */
+ if (g_module_symbol(handle, "plugin_reg_handoff", &gp))
+ {
+ /*
+ * Yes.
+ */
+ reg_handoff = gp;
+ }
+ else
+ {
+ /*
+ * No - that's OK even if we have dissectors, as long
+ * as the plugin registers by name *and* there's
+ * a caller looking for that name.
+ */
+ reg_handoff = NULL;
+ }
+
+ /*
+ * Do we have a register_tap_listener routine?
+ */
+ if (g_module_symbol(handle, "plugin_register_tap_listener", &gp))
+ {
+ /*
+ * Yes - this plugin includes one or more taps.
+ */
+ register_tap_listener = gp;
+ }
+ else
+ {
+ /*
+ * No - no taps here.
+ */
+ register_tap_listener = NULL;
+ }
+
+ /*
+ * Do we have an old-style init routine?
+ */
+ if (g_module_symbol(handle, "plugin_init", &gp))
+ {
+ /*
+ * Yes - do we also have a register routine or a
+ * register_tap_listener routine? If so, this is a bogus
+ * hybrid of an old-style and new-style plugin.
+ */
+ if (register_protoinfo != NULL || register_tap_listener != NULL)
+ {
+ report_failure("The plugin '%s' has an old plugin init routine\nand a new register or register_tap_listener routine.",
+ name);
+ g_module_close(handle);
+ continue;
+ }
+
+ /*
+ * It's just an unsupported old-style plugin;
+ */
+ report_failure("The plugin '%s' has an old plugin init routine. Support has been dropped.\n Information on how to update your plugin is available at \nhttp://anonsvn.wireshark.org/wireshark/trunk/doc/README.plugins",
+ name);
+ g_module_close(handle);
+ continue;
+ }
+
+ /*
+ * Do we have a register_wtap_module routine?
+ */
+ if (g_module_symbol(handle, "register_wtap_module", &gp))
+ {
+ register_wtap_module = gp;
+ }
+ else
+ {
+ register_wtap_module = NULL;
+ }
+
+ /*
+ * Do we have a register_codec_module routine?
+ */
+ if (g_module_symbol(handle, "register_codec_module", &gp))
+ {
+ register_codec_module = gp;
+ }
+ else
+ {
+ register_codec_module = NULL;
+ }
+
+ /*
+ * Does this dissector do anything useful?
+ */
+ if (register_protoinfo == NULL &&
+ register_tap_listener == NULL &&
+ register_wtap_module == NULL &&
+ register_codec_module == NULL )
+ {
+ /*
+ * No.
+ */
+ report_failure("The plugin '%s' has neither a register routine, "
+ "a register_tap_listener or a register_wtap_module or a register_codec_module routine",
+ name);
+ g_module_close(handle);
+ continue;
+ }
+
+ /*
+ * OK, attempt to add it to the list of plugins.
+ */
+ if ((cr = add_plugin(handle, g_strdup(name), version,
+ register_protoinfo, reg_handoff,
+ register_tap_listener,register_wtap_module,register_codec_module)))
+ {
+ if (cr == EEXIST)
+ fprintf(stderr, "The plugin %s, version %s\n"
+ "was found in multiple directories\n", name, version);
+ else
+ fprintf(stderr, "Memory allocation problem\n"
+ "when processing plugin %s, version %s\n",
+ name, version);
+ g_module_close(handle);
+ continue;
+ }
+
+ }
+ ws_dir_close(dir);
}
+}
- if ((dir = opendir(dirname)) != NULL)
+
+/*
+ * init plugins
+ */
+void
+init_plugins(void)
+{
+ const char *plugin_dir;
+ const char *name;
+ char *plugin_dir_path;
+ char *plugins_pers_dir;
+ WS_DIR *dir; /* scanned directory */
+ WS_DIRENT *file; /* current file */
+
+ if (plugin_list == NULL) /* ensure init_plugins is only run once */
{
- while ((file = readdir(dir)) != NULL)
- {
- /* don't try to open "." and ".." */
- if (!(strcmp(file->d_name, "..") &&
- strcmp(file->d_name, "."))) continue;
-
- /* skip anything but files with lt_lib_ext */
- dot = strrchr(file->d_name, '.');
- if (dot == NULL || strcmp(dot, lt_lib_ext) != 0) continue;
-
- snprintf(filename, FILENAME_LEN, "%s" G_DIR_SEPARATOR_S "%s",
- dirname, file->d_name);
- name = (gchar *)file->d_name;
-#else /* GLIB 2 */
+ /*
+ * Scan the global plugin directory.
+ * If we're running from a build directory, scan the subdirectories
+ * of that directory, as the global plugin directory is the
+ * "plugins" directory of the source tree, and the subdirectories
+ * are the source directories for the plugins, with the plugins
+ * built in those subdirectories.
+ */
+ plugin_dir = get_plugin_dir();
+ if (running_in_build_directory())
+ {
+ if ((dir = ws_dir_open(plugin_dir, 0, NULL)) != NULL)
+ {
+ while ((file = ws_dir_read_name(dir)) != NULL)
+ {
+ name = ws_dir_get_name(file);
+ if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0)
+ continue; /* skip "." and ".." */
+ /*
+ * Get the full path of a ".libs" subdirectory of that
+ * directory.
+ */
+ plugin_dir_path = g_strdup_printf(
+ "%s" G_DIR_SEPARATOR_S "%s" G_DIR_SEPARATOR_S ".libs",
+ plugin_dir, name);
+ if (test_for_directory(plugin_dir_path) != EISDIR) {
+ /*
+ * Either it doesn't refer to a directory or it
+ * refers to something that doesn't exist.
+ *
+ * Assume that means that the plugins are in
+ * the subdirectory of the plugin directory, not
+ * a ".libs" subdirectory of that subdirectory.
+ */
+ g_free(plugin_dir_path);
+ plugin_dir_path = g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s",
+ plugin_dir, name);
+ }
+ plugins_scan_dir(plugin_dir_path);
+ g_free(plugin_dir_path);
+ }
+ ws_dir_close(dir);
+ }
+ }
+ else
+ plugins_scan_dir(plugin_dir);
+
+ /*
+ * If the program wasn't started with special privileges,
+ * scan the users plugin directory. (Even if we relinquish
+ * them, plugins aren't safe unless we've *permanently*
+ * relinquished them, and we can't do that in Wireshark as,
+ * if we need privileges to start capturing, we'd need to
+ * reclaim them before each time we start capturing.)
+ */
+ if (!started_with_special_privs())
+ {
+ plugins_pers_dir = get_plugins_pers_dir();
+ plugins_scan_dir(plugins_pers_dir);
+ g_free(plugins_pers_dir);
+ }
+ }
+
+ register_all_wiretap_modules();
+ register_all_codecs();
+}
+
+void
+register_all_plugin_registrations(void)
+{
+ plugin *pt_plug;
+
/*
- * GLib 2.x defines G_MODULE_SUFFIX as the extension used on this
- * platform for loadable modules.
+ * For all plugins with register-handoff routines, call the routines.
+ * This is called from "proto_init()"; it must be called after
+ * "register_all_protocols()" and "init_plugins()" are called,
+ * in case one plugin registers itself either with a built-in
+ * dissector or with another plugin; we must first register all
+ * dissectors, whether built-in or plugin, so their dissector tables
+ * are initialized, and only then register all handoffs.
*/
- dummy = g_malloc(sizeof(GError *));
- *dummy = NULL;
- if ((dir = g_dir_open(dirname, 0, dummy)) != NULL)
+ for (pt_plug = plugin_list; pt_plug != NULL; pt_plug = pt_plug->next)
{
- while ((name = g_dir_read_name(dir)) != NULL)
- {
- /* skip anything but files with G_MODULE_SUFFIX */
- dot = strrchr(name, '.');
- if (dot == NULL || strcmp(dot+1, G_MODULE_SUFFIX) != 0) continue;
-
- snprintf(filename, FILENAME_LEN, "%s" G_DIR_SEPARATOR_S "%s",
- dirname, name);
-#endif
- if ((handle = g_module_open(filename, 0)) == NULL)
- {
- g_warning("Couldn't load module %s: %s", filename,
- g_module_error());
- continue;
- }
- if (g_module_symbol(handle, "version", (gpointer*)&version) == FALSE)
- {
- g_warning("The plugin %s has no version symbol", name);
- g_module_close(handle);
- continue;
- }
-
- /*
- * Old-style dissectors don't have a "plugin_reg_handoff()"
- * routine; we no longer support them.
- *
- * New-style dissectors have one, because, otherwise, there's
- * no way for them to arrange that they ever be called.
- */
- if (g_module_symbol(handle, "plugin_reg_handoff",
- (gpointer*)®_handoff))
- {
- /*
- * We require it to have a "plugin_init()" routine.
- */
- if (!g_module_symbol(handle, "plugin_init", (gpointer*)&init))
- {
- g_warning("The plugin %s has a plugin_reg_handoff symbol but no plugin_init routine",
- name);
- g_module_close(handle);
- continue;
- }
-
- /*
- * We have a "plugin_reg_handoff()" routine, so we don't
- * need the protocol, filter string, or dissector pointer.
- */
- if ((cr = add_plugin(handle, g_strdup(name), version,
- reg_handoff)))
- {
- if (cr == EEXIST)
- fprintf(stderr, "The plugin %s, version %s\n"
- "was found in multiple directories\n", name, version);
- else
- fprintf(stderr, "Memory allocation problem\n"
- "when processing plugin %s, version %s\n",
- name, version);
- g_module_close(handle);
- continue;
- }
-
- /*
- * Call its init routine.
- */
-#ifdef PLUGINS_NEED_ADDRESS_TABLE
- init(&patable);
-#else
- init(NULL);
-#endif
- }
- else
- {
- /*
- * This is an old-style dissector; warn that it won't
- * be used, as those aren't supported.
- */
- fprintf(stderr,
- "The plugin %s, version %s is an old-style plugin;\n"
- "Those are no longer supported.\n", name, version);
- }
- }
-#if GLIB_MAJOR_VERSION < 2
- closedir(dir);
+ if (pt_plug->register_protoinfo)
+ (pt_plug->register_protoinfo)();
}
- g_free(hack_path);
-#else /* GLIB 2 */
- g_dir_close(dir);
- }
- g_clear_error(dummy);
- g_free(dummy);
-#endif
}
-
-/* get the global plugin dir */
-/* Return value is malloced so the caller should g_free() it. */
-const char *get_plugins_global_dir(const char *plugin_dir)
+void
+register_all_plugin_handoffs(void)
{
-#ifdef _WIN32
- char *install_plugin_dir;
-
- /*
- * On Windows, the data file directory is the installation
- * directory; the plugins are stored under it.
- *
- * Assume we're running the installed version of Ethereal;
- * on Windows, the data file directory is the directory
- * in which the Ethereal binary resides.
- */
- install_plugin_dir = g_strdup_printf("%s\\plugins\\%s", get_datafile_dir(), VERSION);
-
- /*
- * Make sure that pathname refers to a directory.
- */
- if (test_for_directory(install_plugin_dir) != EISDIR) {
- /*
- * Either it doesn't refer to a directory or it
- * refers to something that doesn't exist.
- *
- * Assume that means we're running, for example,
- * a version of Ethereal we've built in a source
- * directory, and fall back on the default
- * installation directory, so you can put the plugins
- * somewhere so they can be used with this version
- * of Ethereal.
- *
- * XXX - should we, instead, have the Windows build
- * procedure create a subdirectory of the "plugins"
- * source directory, and copy the plugin DLLs there,
- * so that you use the plugins from the build tree?
- */
- g_free(install_plugin_dir);
- install_plugin_dir =
- g_strdup("C:\\Program Files\\Ethereal\\plugins\\" VERSION);
- }
-
- return install_plugin_dir;
-#else
- /*
- * Scan the plugin directory.
- */
- return strdup(plugin_dir);
-#endif
-}
+ plugin *pt_plug;
+ /*
+ * For all plugins with register-handoff routines, call the routines.
+ * This is called from "proto_init()"; it must be called after
+ * "register_all_protocols()" and "init_plugins()" are called,
+ * in case one plugin registers itself either with a built-in
+ * dissector or with another plugin; we must first register all
+ * dissectors, whether built-in or plugin, so their dissector tables
+ * are initialized, and only then register all handoffs.
+ */
+ for (pt_plug = plugin_list; pt_plug != NULL; pt_plug = pt_plug->next)
+ {
+ if (pt_plug->reg_handoff)
+ (pt_plug->reg_handoff)();
+ }
+}
-/* get the personal plugin dir */
-/* Return value is malloced so the caller should g_free() it. */
-const char *get_plugins_pers_dir(void)
+void
+register_all_plugin_tap_listeners(void)
{
- return get_persconffile_path(PLUGINS_DIR_NAME, FALSE);
+ plugin *pt_plug;
+
+ /*
+ * For all plugins with register-tap-listener routines, call the
+ * routines.
+ */
+ for (pt_plug = plugin_list; pt_plug != NULL; pt_plug = pt_plug->next)
+ {
+ if (pt_plug->register_tap_listener)
+ (pt_plug->register_tap_listener)();
+ }
}
-/*
- * init plugins
- */
void
-init_plugins(const char *plugin_dir)
+register_all_wiretap_modules(void)
{
- const char *datafile_dir;
+ plugin *pt_plug;
- if (plugin_list == NULL) /* ensure init_plugins is only run once */
+ /*
+ * For all plugins with register_wtap_module routines, call the
+ * routines.
+ */
+ for (pt_plug = plugin_list; pt_plug != NULL; pt_plug = pt_plug->next)
{
- /*
- * Scan the global plugin directory.
- */
- datafile_dir = get_plugins_global_dir(plugin_dir);
- plugins_scan_dir(datafile_dir);
- g_free((char *) datafile_dir);
-
- /*
- * Scan the users plugin directory.
- */
- datafile_dir = get_plugins_pers_dir();
- plugins_scan_dir(datafile_dir);
- g_free((char *) datafile_dir);
+ if (pt_plug->register_wtap_module)
+ (pt_plug->register_wtap_module)();
}
}
void
-register_all_plugin_handoffs(void)
+register_all_codecs(void)
{
- plugin *pt_plug;
-
- /*
- * For all new-style plugins, call the register-handoff routine.
- * This is called from "proto_init()"; it must be called after
- * "register_all_protocols()" and "init_plugins()" are called,
- * in case one plugin registers itself either with a built-in
- * dissector or with another plugin; we must first register all
- * dissectors, whether built-in or plugin, so their dissector tables
- * are initialized, and only then register all handoffs.
- *
- * We treat those protocols as always being enabled; they should
- * use the standard mechanism for enabling/disabling protocols, not
- * the plugin-specific mechanism.
- */
- for (pt_plug = plugin_list; pt_plug != NULL; pt_plug = pt_plug->next)
- (pt_plug->reg_handoff)();
+ plugin *pt_plug;
+
+ /*
+ * For all plugins with register_wtap_module routines, call the
+ * routines.
+ */
+ for (pt_plug = plugin_list; pt_plug != NULL; pt_plug = pt_plug->next)
+ {
+ if (pt_plug->register_codec_module)
+ (pt_plug->register_codec_module)();
+ }
}
+
+#endif /* big HAVE_PLUGINS */
+
+/*
+ * Dump plugin info to stdout. Copied from ui/gtk/plugins_dlg.c:plugins_scan.
+ */
+void
+plugins_dump_all(void)
+{
+#ifdef HAVE_PLUGINS
+ plugin *pt_plug;
+ const char *sep;
#endif
+#ifdef HAVE_LUA_5_1
+ wslua_plugin *lua_plug;
+#endif
+
+#ifdef HAVE_PLUGINS
+ for (pt_plug = plugin_list; pt_plug != NULL; pt_plug = pt_plug->next)
+ {
+ sep = "";
+
+ printf("%s\t%s\t", pt_plug->name, pt_plug->version);
+ if (pt_plug->register_protoinfo)
+ {
+ printf("dissector");
+ sep = ", ";
+ }
+ if (pt_plug->register_tap_listener)
+ {
+ printf("%stap", sep);
+ sep = ", ";
+ }
+ if (pt_plug->register_wtap_module)
+ {
+ printf("%sfile format", sep);
+ sep = ", ";
+ }
+ if (pt_plug->register_codec_module)
+ {
+ printf("%scodec", sep);
+ }
+ printf("\t%s\n", g_module_name(pt_plug->handle));
+ }
+#endif
+
+#ifdef HAVE_LUA_5_1
+ for (lua_plug = wslua_plugin_list; lua_plug != NULL; lua_plug = lua_plug->next)
+ {
+ printf("%s\t%s\tlua script\t%s\n", lua_plug->name, lua_plug->version, lua_plug->filename);
+ }
+#endif
+}
+
git.samba.org / obnox / wireshark / wip.git / blobdiff