1 /* 2 * libjingle 3 * Copyright 2004 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TALK_MEDIA_DEVICES_LIBUDEVSYMBOLTABLE_H_ 29 #define TALK_MEDIA_DEVICES_LIBUDEVSYMBOLTABLE_H_ 30 31 #include <libudev.h> 32 33 #include "webrtc/base/latebindingsymboltable.h" 34 35 namespace cricket { 36 37 #define LIBUDEV_SYMBOLS_CLASS_NAME LibUDevSymbolTable 38 // The libudev symbols we need, as an X-Macro list. 39 // This list must contain precisely every libudev function that is used in 40 // linuxdevicemanager.cc. 41 #define LIBUDEV_SYMBOLS_LIST \ 42 X(udev_device_get_devnode) \ 43 X(udev_device_get_parent_with_subsystem_devtype) \ 44 X(udev_device_get_sysattr_value) \ 45 X(udev_device_new_from_syspath) \ 46 X(udev_device_unref) \ 47 X(udev_enumerate_add_match_subsystem) \ 48 X(udev_enumerate_get_list_entry) \ 49 X(udev_enumerate_new) \ 50 X(udev_enumerate_scan_devices) \ 51 X(udev_enumerate_unref) \ 52 X(udev_list_entry_get_name) \ 53 X(udev_list_entry_get_next) \ 54 X(udev_monitor_enable_receiving) \ 55 X(udev_monitor_filter_add_match_subsystem_devtype) \ 56 X(udev_monitor_get_fd) \ 57 X(udev_monitor_new_from_netlink) \ 58 X(udev_monitor_receive_device) \ 59 X(udev_monitor_unref) \ 60 X(udev_new) \ 61 X(udev_unref) 62 63 #define LATE_BINDING_SYMBOL_TABLE_CLASS_NAME LIBUDEV_SYMBOLS_CLASS_NAME 64 #define LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST LIBUDEV_SYMBOLS_LIST 65 #include "webrtc/base/latebindingsymboltable.h.def" 66 #undef LATE_BINDING_SYMBOL_TABLE_CLASS_NAME 67 #undef LATE_BINDING_SYMBOL_TABLE_SYMBOLS_LIST 68 69 // libudev has changed ABIs to libudev.so.1 in recent distros and lots of users 70 // and/or software (including Google Chrome) are symlinking the old to the new. 71 // The entire point of ABI versions is that you can't safely do that, and 72 // it has caused crashes in the wild. This function checks if the DllHandle that 73 // we got back for libudev.so.0 is actually for libudev.so.1. If so, the library 74 // cannot safely be used. 75 bool IsWrongLibUDevAbiVersion(rtc::DllHandle libudev_0); 76 77 } // namespace cricket 78 79 #endif // TALK_MEDIA_DEVICES_LIBUDEVSYMBOLTABLE_H_ 80
