From 3f8431c8d0886dd18ab157694a64766a2d7288bd Mon Sep 17 00:00:00 2001 From: Christian Linke Date: Wed, 2 Dec 2015 17:25:12 +0000 Subject: moved watchdog into utilities and created .pc file for utilities Signed-off-by: Christian Linke --- AudioManagerDaemon/CMakeLists.txt | 15 - AudioManagerDaemon/include/CAmWatchdog.h | 50 -- AudioManagerDaemon/include/sd-daemon.h | 286 ----------- AudioManagerDaemon/src/CAmWatchdog.cpp | 112 ----- AudioManagerDaemon/src/sd-daemon.c | 534 --------------------- .../test/AmControlInterfaceTest/CMakeLists.txt | 7 + .../test/AmMapHandlerTest/CMakeLists.txt | 7 + .../test/AmRouterMapTest/CMakeLists.txt | 7 + .../test/AmRouterTest/CMakeLists.txt | 7 + .../test/AmRoutingInterfaceTest/CMakeLists.txt | 7 + .../test/AmSocketHandlerTest/CMakeLists.txt | 7 + .../test/AmTelnetServerTest/CMakeLists.txt | 7 + AudioManagerUtilities/CMakeLists.txt | 19 + AudioManagerUtilities/include/CAmWatchdog.h | 50 ++ AudioManagerUtilities/include/sd-daemon.h | 286 +++++++++++ AudioManagerUtilities/src/CAmWatchdog.cpp | 113 +++++ AudioManagerUtilities/src/sd-daemon.c | 534 +++++++++++++++++++++ 17 files changed, 1051 insertions(+), 997 deletions(-) delete mode 100755 AudioManagerDaemon/include/CAmWatchdog.h delete mode 100644 AudioManagerDaemon/include/sd-daemon.h delete mode 100755 AudioManagerDaemon/src/CAmWatchdog.cpp delete mode 100644 AudioManagerDaemon/src/sd-daemon.c create mode 100755 AudioManagerUtilities/include/CAmWatchdog.h create mode 100644 AudioManagerUtilities/include/sd-daemon.h create mode 100755 AudioManagerUtilities/src/CAmWatchdog.cpp create mode 100644 AudioManagerUtilities/src/sd-daemon.c diff --git a/AudioManagerDaemon/CMakeLists.txt b/AudioManagerDaemon/CMakeLists.txt index 260483c..5165141 100644 --- a/AudioManagerDaemon/CMakeLists.txt +++ b/AudioManagerDaemon/CMakeLists.txt @@ -82,21 +82,6 @@ if(WITH_TELNET) src/CAmTelnetMenuHelper.cpp) endif(WITH_TELNET) -if(WITH_SYSTEMD_WATCHDOG) - set (AUDIOMAN_SRCS_CXX - ${AUDIOMAN_SRCS_CXX} - src/CAmWatchdog.cpp) - set (AM_LINK_LIBS - ${AM_LINK_LIBS} - ${SYSTEMD_LIBRARIES}) -endif(WITH_SYSTEMD_WATCHDOG) - -if (NOT SYSTEMD_FOUND) - set (AUDIOMAN_SRCS_CXX - ${AUDIOMAN_SRCS_CXX} - src/sd-daemon.c) -endif (NOT SYSTEMD_FOUND) - if(WITH_DBUS_WRAPPER) set (AUDIOMAN_SRCS_CXX ${AUDIOMAN_SRCS_CXX} diff --git a/AudioManagerDaemon/include/CAmWatchdog.h b/AudioManagerDaemon/include/CAmWatchdog.h deleted file mode 100755 index 4449c75..0000000 --- a/AudioManagerDaemon/include/CAmWatchdog.h +++ /dev/null @@ -1,50 +0,0 @@ -/** - * SPDX license identifier: MPL-2.0 - * - * Copyright (C) 2012, BMW AG - * - * This file is part of GENIVI Project AudioManager. - * - * Contributions are licensed to the GENIVI Alliance under one or more - * Contribution License Agreements. - * - * \copyright - * This Source Code Form is subject to the terms of the - * Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with - * this file, You can obtain one at http://mozilla.org/MPL/2.0/. - * - * - * \author Christian Linke, christian.linke@bmw.de BMW 2011,2012 - * - * \file CAmWatchdog.h - * For further information see http://www.genivi.org/. - * - */ - -#ifndef CAMWATCHDOG_H_ -#define CAMWATCHDOG_H_ - -#include "CAmSocketHandler.h" - -namespace am -{ - -/** - * Implements the watchdog of the AudioManager with the help of systemd - */ -class CAmWatchdog -{ -public: - CAmWatchdog(CAmSocketHandler* CAmSocketHandler); - virtual ~CAmWatchdog(); - void startWatchdog(); //!< starts the watchdog by sending ready to systemD - void timerCallback(sh_timerHandle_t handle, void * userData); //!< the watchdog timer callback - TAmShTimerCallBack TimerCallback; - -private: - CAmSocketHandler* mpCAmSocketHandler; //!< pointer to the sockethandler - sh_timerHandle_t mHandle; //!< handle of the timer -}; - -} /* namespace am */ -#endif /* CAMWATCHDOG_H_ */ diff --git a/AudioManagerDaemon/include/sd-daemon.h b/AudioManagerDaemon/include/sd-daemon.h deleted file mode 100644 index 50f7409..0000000 --- a/AudioManagerDaemon/include/sd-daemon.h +++ /dev/null @@ -1,286 +0,0 @@ -/** - * SPDX license identifier: MIT - */ - -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -#ifndef foosddaemonhfoo -#define foosddaemonhfoo - -/*** - Copyright 2010 Lennart Poettering - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this software and associated documentation files - (the "Software"), to deal in the Software without restriction, - including without limitation the rights to use, copy, modify, merge, - publish, distribute, sublicense, and/or sell copies of the Software, - and to permit persons to whom the Software is furnished to do so, - subject to the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - SOFTWARE. -***/ - -#include -#include - -#ifdef __cplusplus -extern "C" { -#endif - -/* - Reference implementation of a few systemd related interfaces for - writing daemons. These interfaces are trivial to implement. To - simplify porting we provide this reference implementation. - Applications are welcome to reimplement the algorithms described - here if they do not want to include these two source files. - - The following functionality is provided: - - - Support for logging with log levels on stderr - - File descriptor passing for socket-based activation - - Daemon startup and status notification - - Detection of systemd boots - - You may compile this with -DDISABLE_SYSTEMD to disable systemd - support. This makes all those calls NOPs that are directly related to - systemd (i.e. only sd_is_xxx() will stay useful). - - Since this is drop-in code we don't want any of our symbols to be - exported in any case. Hence we declare hidden visibility for all of - them. - - You may find an up-to-date version of these source files online: - - http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h - http://cgit.freedesktop.org/systemd/systemd/plain/src/sd-daemon.c - - This should compile on non-Linux systems, too, but with the - exception of the sd_is_xxx() calls all functions will become NOPs. - - See sd-daemon(7) for more information. -*/ - -#ifndef _sd_printf_attr_ -#if __GNUC__ >= 4 -#define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b))) -#else -#define _sd_printf_attr_(a,b) -#endif -#endif - -/* - Log levels for usage on stderr: - - fprintf(stderr, SD_NOTICE "Hello World!\n"); - - This is similar to printk() usage in the kernel. -*/ -#define SD_EMERG "<0>" /* system is unusable */ -#define SD_ALERT "<1>" /* action must be taken immediately */ -#define SD_CRIT "<2>" /* critical conditions */ -#define SD_ERR "<3>" /* error conditions */ -#define SD_WARNING "<4>" /* warning conditions */ -#define SD_NOTICE "<5>" /* normal but significant condition */ -#define SD_INFO "<6>" /* informational */ -#define SD_DEBUG "<7>" /* debug-level messages */ - -/* The first passed file descriptor is fd 3 */ -#define SD_LISTEN_FDS_START 3 - -/* - Returns how many file descriptors have been passed, or a negative - errno code on failure. Optionally, removes the $LISTEN_FDS and - $LISTEN_PID file descriptors from the environment (recommended, but - problematic in threaded environments). If r is the return value of - this function you'll find the file descriptors passed as fds - SD_LISTEN_FDS_START to SD_LISTEN_FDS_START+r-1. Returns a negative - errno style error code on failure. This function call ensures that - the FD_CLOEXEC flag is set for the passed file descriptors, to make - sure they are not passed on to child processes. If FD_CLOEXEC shall - not be set, the caller needs to unset it after this call for all file - descriptors that are used. - - See sd_listen_fds(3) for more information. -*/ -int sd_listen_fds(int unset_environment); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a FIFO in the file system stored under the - specified path, 0 otherwise. If path is NULL a path name check will - not be done and the call only verifies if the file descriptor - refers to a FIFO. Returns a negative errno style error code on - failure. - - See sd_is_fifo(3) for more information. -*/ -int sd_is_fifo(int fd, const char *path); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a special character device on the file - system stored under the specified path, 0 otherwise. - If path is NULL a path name check will not be done and the call - only verifies if the file descriptor refers to a special character. - Returns a negative errno style error code on failure. - - See sd_is_special(3) for more information. -*/ -int sd_is_special(int fd, const char *path); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a socket of the specified family (AF_INET, - ...) and type (SOCK_DGRAM, SOCK_STREAM, ...), 0 otherwise. If - family is 0 a socket family check will not be done. If type is 0 a - socket type check will not be done and the call only verifies if - the file descriptor refers to a socket. If listening is > 0 it is - verified that the socket is in listening mode. (i.e. listen() has - been called) If listening is == 0 it is verified that the socket is - not in listening mode. If listening is < 0 no listening mode check - is done. Returns a negative errno style error code on failure. - - See sd_is_socket(3) for more information. -*/ -int sd_is_socket(int fd, int family, int type, int listening); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is an Internet socket, of the specified family - (either AF_INET or AF_INET6) and the specified type (SOCK_DGRAM, - SOCK_STREAM, ...), 0 otherwise. If version is 0 a protocol version - check is not done. If type is 0 a socket type check will not be - done. If port is 0 a socket port check will not be done. The - listening flag is used the same way as in sd_is_socket(). Returns a - negative errno style error code on failure. - - See sd_is_socket_inet(3) for more information. -*/ -int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is an AF_UNIX socket of the specified type - (SOCK_DGRAM, SOCK_STREAM, ...) and path, 0 otherwise. If type is 0 - a socket type check will not be done. If path is NULL a socket path - check will not be done. For normal AF_UNIX sockets set length to - 0. For abstract namespace sockets set length to the length of the - socket name (including the initial 0 byte), and pass the full - socket path in path (including the initial 0 byte). The listening - flag is used the same way as in sd_is_socket(). Returns a negative - errno style error code on failure. - - See sd_is_socket_unix(3) for more information. -*/ -int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length); - -/* - Helper call for identifying a passed file descriptor. Returns 1 if - the file descriptor is a POSIX Message Queue of the specified name, - 0 otherwise. If path is NULL a message queue name check is not - done. Returns a negative errno style error code on failure. -*/ -int sd_is_mq(int fd, const char *path); - -/* - Informs systemd about changed daemon state. This takes a number of - newline separated environment-style variable assignments in a - string. The following variables are known: - - READY=1 Tells systemd that daemon startup is finished (only - relevant for services of Type=notify). The passed - argument is a boolean "1" or "0". Since there is - little value in signaling non-readiness the only - value daemons should send is "READY=1". - - STATUS=... Passes a single-line status string back to systemd - that describes the daemon state. This is free-from - and can be used for various purposes: general state - feedback, fsck-like programs could pass completion - percentages and failing programs could pass a human - readable error message. Example: "STATUS=Completed - 66% of file system check..." - - ERRNO=... If a daemon fails, the errno-style error code, - formatted as string. Example: "ERRNO=2" for ENOENT. - - BUSERROR=... If a daemon fails, the D-Bus error-style error - code. Example: "BUSERROR=org.freedesktop.DBus.Error.TimedOut" - - MAINPID=... The main pid of a daemon, in case systemd did not - fork off the process itself. Example: "MAINPID=4711" - - WATCHDOG=1 Tells systemd to update the watchdog timestamp. - Services using this feature should do this in - regular intervals. A watchdog framework can use the - timestamps to detect failed services. - - Daemons can choose to send additional variables. However, it is - recommended to prefix variable names not listed above with X_. - - Returns a negative errno-style error code on failure. Returns > 0 - if systemd could be notified, 0 if it couldn't possibly because - systemd is not running. - - Example: When a daemon finished starting up, it could issue this - call to notify systemd about it: - - sd_notify(0, "READY=1"); - - See sd_notifyf() for more complete examples. - - See sd_notify(3) for more information. -*/ -int sd_notify(int unset_environment, const char *state); - -/* - Similar to sd_notify() but takes a format string. - - Example 1: A daemon could send the following after initialization: - - sd_notifyf(0, "READY=1\n" - "STATUS=Processing requests...\n" - "MAINPID=%lu", - (unsigned long) getpid()); - - Example 2: A daemon could send the following shortly before - exiting, on failure: - - sd_notifyf(0, "STATUS=Failed to start up: %s\n" - "ERRNO=%i", - strerror(errno), - errno); - - See sd_notifyf(3) for more information. -*/ -int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_attr_(2,3); - -/* - Returns > 0 if the system was booted with systemd. Returns < 0 on - error. Returns 0 if the system was not booted with systemd. Note - that all of the functions above handle non-systemd boots just - fine. You should NOT protect them with a call to this function. Also - note that this function checks whether the system, not the user - session is controlled by systemd. However the functions above work - for both user and system services. - - See sd_booted(3) for more information. -*/ -int sd_booted(void); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/AudioManagerDaemon/src/CAmWatchdog.cpp b/AudioManagerDaemon/src/CAmWatchdog.cpp deleted file mode 100755 index 4ac890f..0000000 --- a/AudioManagerDaemon/src/CAmWatchdog.cpp +++ /dev/null @@ -1,112 +0,0 @@ -/** - * SPDX license identifier: MPL-2.0 - * - * Copyright (C) 2012, BMW AG - * - * This file is part of GENIVI Project AudioManager. - * - * Contributions are licensed to the GENIVI Alliance under one or more - * Contribution License Agreements. - * - * \copyright - * This Source Code Form is subject to the terms of the - * Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with - * this file, You can obtain one at http://mozilla.org/MPL/2.0/. - * - * - * \author Christian Linke, christian.linke@bmw.de BMW 2011,2012 - * - * \file CAmWatchdog.cpp - * For further information see http://www.genivi.org/. - * - */ - -#include "CAmWatchdog.h" -#include -#include -#include -#include "audiomanagerconfig.h" -#include "CAmDltWrapper.h" - -#ifdef SYSTEMD_FOUND - #include -#else - #include "sd-daemon.h" -#endif - -namespace am -{ - -CAmWatchdog::CAmWatchdog(CAmSocketHandler* CAmSocketHandler) : - TimerCallback(this, &CAmWatchdog::timerCallback), // - mpCAmSocketHandler(CAmSocketHandler), // - mHandle(0) // -{ - assert(mpCAmSocketHandler); - - - //first retrieve the timeout interval - - int watchdogTimeout = 0; - - char* wusec=getenv("WATCHDOG_USEC"); - if (wusec) - watchdogTimeout=atoi(wusec); - - if (watchdogTimeout > 0) - { - timespec timeout; - - //calculate the half cycle as the right interval to trigger the watchdog. - timeout.tv_sec = (watchdogTimeout / 2) / 1000000; - timeout.tv_nsec = ((watchdogTimeout / 2) % 1000000) * 1000; - logInfo("CAmWatchdog::CAmWatchdog setting watchdog timeout:", watchdogTimeout, "us. Notification set to:", - timeout.tv_sec, "sec and", timeout.tv_nsec, "ns"); - - //add the timer here - if (mpCAmSocketHandler->addTimer(timeout, &TimerCallback, mHandle, NULL)) - { - logError("CAmWatchdog::CAmWatchdog failed to add timer"); - throw std::runtime_error("CAmWatchdog::CAmWatchdog failed to add timer"); - } - } - - else - { - logInfo("CAmWatchdog::CAmWatchdog watchdog timeout was ", watchdogTimeout, " museconds, no watchdog active"); - } -} - -CAmWatchdog::~CAmWatchdog() -{ - //remove the timer again. - mpCAmSocketHandler->removeTimer(mHandle); -} - -void CAmWatchdog::timerCallback(sh_timerHandle_t handle, void* userData) -{ - (void) userData; - int error(sd_notify(0, "WATCHDOG=1")); - if (error < 0) - { - logError("CAmWatchdog::timerCallback could not reset watchdog, error ", error); - throw std::runtime_error("CAmWatchdog::timerCallback could not reset watchdog"); - } - - mpCAmSocketHandler->restartTimer(handle); -} - -void CAmWatchdog::startWatchdog() -{ - int error(sd_notify(0, "READY=1")); - if (error < 0) - { - logError("CAmWatchdog::startWatchdog could not start watchdog, error ", error); - throw std::runtime_error("CAmWatchdog::startWatchdog could not start watchdog"); - } - logInfo("READY=1 was sent to systemd"); -} - -} - -/* namespace am */ diff --git a/AudioManagerDaemon/src/sd-daemon.c b/AudioManagerDaemon/src/sd-daemon.c deleted file mode 100644 index cf35148..0000000 --- a/AudioManagerDaemon/src/sd-daemon.c +++ /dev/null @@ -1,534 +0,0 @@ -/** - * SPDX license identifier: MIT - */ - -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - Copyright 2010 Lennart Poettering - - Permission is hereby granted, free of charge, to any person - obtaining a copy of this software and associated documentation files - (the "Software"), to deal in the Software without restriction, - including without limitation the rights to use, copy, modify, merge, - publish, distribute, sublicense, and/or sell copies of the Software, - and to permit persons to whom the Software is furnished to do so, - subject to the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - SOFTWARE. -***/ - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif - -#include -#include -#include -#include -#ifdef __BIONIC__ -#include -#else -#include -#endif -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#if defined(__linux__) -#include -#endif - -#include "sd-daemon.h" - -#if (__GNUC__ >= 4) -#ifdef SD_EXPORT_SYMBOLS -/* Export symbols */ -#define _sd_export_ __attribute__ ((visibility("default"))) -#else -/* Don't export the symbols */ -#define _sd_export_ __attribute__ ((visibility("hidden"))) -#endif -#else -#define _sd_export_ -#endif - -_sd_export_ int sd_listen_fds(int unset_environment) { - -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) - return 0; -#else - int r, fd; - const char *e; - char *p = NULL; - unsigned long l; - - if (!(e = getenv("LISTEN_PID"))) { - r = 0; - goto finish; - } - - errno = 0; - l = strtoul(e, &p, 10); - - if (errno != 0) { - r = -errno; - goto finish; - } - - if (!p || *p || l <= 0) { - r = -EINVAL; - goto finish; - } - - /* Is this for us? */ - if (getpid() != (pid_t) l) { - r = 0; - goto finish; - } - - if (!(e = getenv("LISTEN_FDS"))) { - r = 0; - goto finish; - } - - errno = 0; - l = strtoul(e, &p, 10); - - if (errno != 0) { - r = -errno; - goto finish; - } - - if (!p || *p) { - r = -EINVAL; - goto finish; - } - - for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + (int) l; fd ++) { - int flags; - - if ((flags = fcntl(fd, F_GETFD)) < 0) { - r = -errno; - goto finish; - } - - if (flags & FD_CLOEXEC) - continue; - - if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0) { - r = -errno; - goto finish; - } - } - - r = (int) l; - -finish: - if (unset_environment) { - unsetenv("LISTEN_PID"); - unsetenv("LISTEN_FDS"); - } - - return r; -#endif -} - -_sd_export_ int sd_is_fifo(int fd, const char *path) { - struct stat st_fd; - - if (fd < 0) - return -EINVAL; - - memset(&st_fd, 0, sizeof(st_fd)); - if (fstat(fd, &st_fd) < 0) - return -errno; - - if (!S_ISFIFO(st_fd.st_mode)) - return 0; - - if (path) { - struct stat st_path; - - memset(&st_path, 0, sizeof(st_path)); - if (stat(path, &st_path) < 0) { - - if (errno == ENOENT || errno == ENOTDIR) - return 0; - - return -errno; - } - - return - st_path.st_dev == st_fd.st_dev && - st_path.st_ino == st_fd.st_ino; - } - - return 1; -} - -_sd_export_ int sd_is_special(int fd, const char *path) { - struct stat st_fd; - - if (fd < 0) - return -EINVAL; - - if (fstat(fd, &st_fd) < 0) - return -errno; - - if (!S_ISREG(st_fd.st_mode) && !S_ISCHR(st_fd.st_mode)) - return 0; - - if (path) { - struct stat st_path; - - if (stat(path, &st_path) < 0) { - - if (errno == ENOENT || errno == ENOTDIR) - return 0; - - return -errno; - } - - if (S_ISREG(st_fd.st_mode) && S_ISREG(st_path.st_mode)) - return - st_path.st_dev == st_fd.st_dev && - st_path.st_ino == st_fd.st_ino; - else if (S_ISCHR(st_fd.st_mode) && S_ISCHR(st_path.st_mode)) - return st_path.st_rdev == st_fd.st_rdev; - else - return 0; - } - - return 1; -} - -static int sd_is_socket_internal(int fd, int type, int listening) { - struct stat st_fd; - - if (fd < 0 || type < 0) - return -EINVAL; - - if (fstat(fd, &st_fd) < 0) - return -errno; - - if (!S_ISSOCK(st_fd.st_mode)) - return 0; - - if (type != 0) { - int other_type = 0; - socklen_t l = sizeof(other_type); - - if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &other_type, &l) < 0) - return -errno; - - if (l != sizeof(other_type)) - return -EINVAL; - - if (other_type != type) - return 0; - } - - if (listening >= 0) { - int accepting = 0; - socklen_t l = sizeof(accepting); - - if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &accepting, &l) < 0) - return -errno; - - if (l != sizeof(accepting)) - return -EINVAL; - - if (!accepting != !listening) - return 0; - } - - return 1; -} - -union sockaddr_union { - struct sockaddr sa; - struct sockaddr_in in4; - struct sockaddr_in6 in6; - struct sockaddr_un un; - struct sockaddr_storage storage; -}; - -_sd_export_ int sd_is_socket(int fd, int family, int type, int listening) { - int r; - - if (family < 0) - return -EINVAL; - - if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) - return r; - - if (family > 0) { - union sockaddr_union sockaddr; - socklen_t l; - - memset(&sockaddr, 0, sizeof(sockaddr)); - l = sizeof(sockaddr); - - if (getsockname(fd, &sockaddr.sa, &l) < 0) - return -errno; - - if (l < sizeof(sa_family_t)) - return -EINVAL; - - return sockaddr.sa.sa_family == family; - } - - return 1; -} - -_sd_export_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) { - union sockaddr_union sockaddr; - socklen_t l; - int r; - - if (family != 0 && family != AF_INET && family != AF_INET6) - return -EINVAL; - - if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) - return r; - - memset(&sockaddr, 0, sizeof(sockaddr)); - l = sizeof(sockaddr); - - if (getsockname(fd, &sockaddr.sa, &l) < 0) - return -errno; - - if (l < sizeof(sa_family_t)) - return -EINVAL; - - if (sockaddr.sa.sa_family != AF_INET && - sockaddr.sa.sa_family != AF_INET6) - return 0; - - if (family > 0) - if (sockaddr.sa.sa_family != family) - return 0; - - if (port > 0) { - if (sockaddr.sa.sa_family == AF_INET) { - if (l < sizeof(struct sockaddr_in)) - return -EINVAL; - - return htons(port) == sockaddr.in4.sin_port; - } else { - if (l < sizeof(struct sockaddr_in6)) - return -EINVAL; - - return htons(port) == sockaddr.in6.sin6_port; - } - } - - return 1; -} - -_sd_export_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) { - union sockaddr_union sockaddr; - socklen_t l; - int r; - - if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) - return r; - - memset(&sockaddr, 0, sizeof(sockaddr)); - l = sizeof(sockaddr); - - if (getsockname(fd, &sockaddr.sa, &l) < 0) - return -errno; - - if (l < sizeof(sa_family_t)) - return -EINVAL; - - if (sockaddr.sa.sa_family != AF_UNIX) - return 0; - - if (path) { - if (length <= 0) - length = strlen(path); - - if (length <= 0) - /* Unnamed socket */ - return l == offsetof(struct sockaddr_un, sun_path); - - if (path[0]) - /* Normal path socket */ - return - (l >= offsetof(struct sockaddr_un, sun_path) + length + 1) && - memcmp(path, sockaddr.un.sun_path, length+1) == 0; - else - /* Abstract namespace socket */ - return - (l == offsetof(struct sockaddr_un, sun_path) + length) && - memcmp(path, sockaddr.un.sun_path, length) == 0; - } - - return 1; -} - -_sd_export_ int sd_is_mq(int fd, const char *path) { -#if !defined(__linux__) - return 0; -#else - struct mq_attr attr; - - if (fd < 0) - return -EINVAL; - - if (mq_getattr(fd, &attr) < 0) - return -errno; - - if (path) { - char fpath[PATH_MAX]; - struct stat a, b; - - if (path[0] != '/') - return -EINVAL; - - if (fstat(fd, &a) < 0) - return -errno; - - strncpy(stpcpy(fpath, "/dev/mqueue"), path, sizeof(fpath) - 12); - fpath[sizeof(fpath)-1] = 0; - - if (stat(fpath, &b) < 0) - return -errno; - - if (a.st_dev != b.st_dev || - a.st_ino != b.st_ino) - return 0; - } - - return 1; -#endif -} - -_sd_export_ int sd_notify(int unset_environment, const char *state) { -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC) - return 0; -#else - int fd = -1, r; - struct msghdr msghdr; - struct iovec iovec; - union sockaddr_union sockaddr; - const char *e; - - if (!state) { - r = -EINVAL; - goto finish; - } - - if (!(e = getenv("NOTIFY_SOCKET"))) - return 0; - - /* Must be an abstract socket, or an absolute path */ - if ((e[0] != '@' && e[0] != '/') || e[1] == 0) { - r = -EINVAL; - goto finish; - } - - if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) { - r = -errno; - goto finish; - } - - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sa.sa_family = AF_UNIX; - strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path)); - - if (sockaddr.un.sun_path[0] == '@') - sockaddr.un.sun_path[0] = 0; - - memset(&iovec, 0, sizeof(iovec)); - iovec.iov_base = (char*) state; - iovec.iov_len = strlen(state); - - memset(&msghdr, 0, sizeof(msghdr)); - msghdr.msg_name = &sockaddr; - msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(e); - - if (msghdr.msg_namelen > sizeof(struct sockaddr_un)) - msghdr.msg_namelen = sizeof(struct sockaddr_un); - - msghdr.msg_iov = &iovec; - msghdr.msg_iovlen = 1; - - if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) { - r = -errno; - goto finish; - } - - r = 1; - -finish: - if (unset_environment) - unsetenv("NOTIFY_SOCKET"); - - if (fd >= 0) - close(fd); - - return r; -#endif -} - -_sd_export_ int sd_notifyf(int unset_environment, const char *format, ...) { -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) - return 0; -#else - va_list ap; - char *p = NULL; - int r; - - va_start(ap, format); - r = vasprintf(&p, format, ap); - va_end(ap); - - if (r < 0 || !p) - return -ENOMEM; - - r = sd_notify(unset_environment, p); - free(p); - - return r; -#endif -} - -_sd_export_ int sd_booted(void) { -#if defined(DISABLE_SYSTEMD) || !defined(__linux__) - return 0; -#else - - struct stat a, b; - - /* We simply test whether the systemd cgroup hierarchy is - * mounted */ - - if (lstat("/sys/fs/cgroup", &a) < 0) - return 0; - - if (lstat("/sys/fs/cgroup/systemd", &b) < 0) - return 0; - - return a.st_dev != b.st_dev; -#endif -} diff --git a/AudioManagerDaemon/test/AmControlInterfaceTest/CMakeLists.txt b/AudioManagerDaemon/test/AmControlInterfaceTest/CMakeLists.txt index 44b3aef..b21ca91 100644 --- a/AudioManagerDaemon/test/AmControlInterfaceTest/CMakeLists.txt +++ b/AudioManagerDaemon/test/AmControlInterfaceTest/CMakeLists.txt @@ -25,6 +25,13 @@ set (AM_LINK_LIBS ${CMAKE_DL_LIBS} AudioManagerUtilities rt) + +IF (WITH_CAPI_WRAPPER) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + -Wl,--as-needed CommonAPI + ) +ENDIF (WITH_CAPI_WRAPPER) if(WITH_DATABASE_STORAGE) pkg_check_modules(SQLITE REQUIRED sqlite3) diff --git a/AudioManagerDaemon/test/AmMapHandlerTest/CMakeLists.txt b/AudioManagerDaemon/test/AmMapHandlerTest/CMakeLists.txt index 22bd598..760be6c 100644 --- a/AudioManagerDaemon/test/AmMapHandlerTest/CMakeLists.txt +++ b/AudioManagerDaemon/test/AmMapHandlerTest/CMakeLists.txt @@ -33,6 +33,13 @@ if(WITH_DLT) ${DLT_LIBRARIES}) endif(WITH_DLT) +IF (WITH_CAPI_WRAPPER) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + -Wl,--as-needed CommonAPI + ) +ENDIF (WITH_CAPI_WRAPPER) + INCLUDE_DIRECTORIES( ${CMAKE_CURRENT_BINARY_DIR} ${AUDIO_INCLUDE_FOLDER} diff --git a/AudioManagerDaemon/test/AmRouterMapTest/CMakeLists.txt b/AudioManagerDaemon/test/AmRouterMapTest/CMakeLists.txt index f538741..720ef64 100644 --- a/AudioManagerDaemon/test/AmRouterMapTest/CMakeLists.txt +++ b/AudioManagerDaemon/test/AmRouterMapTest/CMakeLists.txt @@ -26,6 +26,13 @@ set (AM_LINK_LIBS AudioManagerUtilities rt) +IF (WITH_CAPI_WRAPPER) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + -Wl,--as-needed CommonAPI + ) +ENDIF (WITH_CAPI_WRAPPER) + if(WITH_DLT) pkg_check_modules(DLT REQUIRED automotive-dlt>=2.2.0) set (AM_LINK_LIBS diff --git a/AudioManagerDaemon/test/AmRouterTest/CMakeLists.txt b/AudioManagerDaemon/test/AmRouterTest/CMakeLists.txt index d4e2580..e9b0e80 100644 --- a/AudioManagerDaemon/test/AmRouterTest/CMakeLists.txt +++ b/AudioManagerDaemon/test/AmRouterTest/CMakeLists.txt @@ -25,6 +25,13 @@ set (AM_LINK_LIBS ${CMAKE_DL_LIBS} AudioManagerUtilities rt) + +IF (WITH_CAPI_WRAPPER) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + -Wl,--as-needed CommonAPI + ) +ENDIF (WITH_CAPI_WRAPPER) if(WITH_DLT) pkg_check_modules(DLT REQUIRED automotive-dlt>=2.2.0) diff --git a/AudioManagerDaemon/test/AmRoutingInterfaceTest/CMakeLists.txt b/AudioManagerDaemon/test/AmRoutingInterfaceTest/CMakeLists.txt index 7c19a4b..426ac7a 100644 --- a/AudioManagerDaemon/test/AmRoutingInterfaceTest/CMakeLists.txt +++ b/AudioManagerDaemon/test/AmRoutingInterfaceTest/CMakeLists.txt @@ -28,6 +28,13 @@ set (AM_LINK_LIBS AudioManagerUtilities rt) +IF (WITH_CAPI_WRAPPER) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + -Wl,--as-needed CommonAPI + ) +ENDIF (WITH_CAPI_WRAPPER) + if(WITH_DLT) pkg_check_modules(DLT REQUIRED automotive-dlt>=2.2.0) set (AM_LINK_LIBS diff --git a/AudioManagerDaemon/test/AmSocketHandlerTest/CMakeLists.txt b/AudioManagerDaemon/test/AmSocketHandlerTest/CMakeLists.txt index bf197f4..bff74b6 100644 --- a/AudioManagerDaemon/test/AmSocketHandlerTest/CMakeLists.txt +++ b/AudioManagerDaemon/test/AmSocketHandlerTest/CMakeLists.txt @@ -25,6 +25,13 @@ set (AM_LINK_LIBS ${CMAKE_DL_LIBS} AudioManagerUtilities rt) + +IF (WITH_CAPI_WRAPPER) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + -Wl,--as-needed CommonAPI + ) +ENDIF (WITH_CAPI_WRAPPER) if(WITH_DLT) pkg_check_modules(DLT REQUIRED automotive-dlt>=2.2.0) diff --git a/AudioManagerDaemon/test/AmTelnetServerTest/CMakeLists.txt b/AudioManagerDaemon/test/AmTelnetServerTest/CMakeLists.txt index e7e7955..7f1cc2c 100644 --- a/AudioManagerDaemon/test/AmTelnetServerTest/CMakeLists.txt +++ b/AudioManagerDaemon/test/AmTelnetServerTest/CMakeLists.txt @@ -23,6 +23,13 @@ set (AM_LINK_LIBS ${CMAKE_DL_LIBS} AudioManagerUtilities rt) + +IF (WITH_CAPI_WRAPPER) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + -Wl,--as-needed CommonAPI + ) +ENDIF (WITH_CAPI_WRAPPER) set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -DUNIT_TEST=1 -DDLT_CONTEXT=AudioManager") diff --git a/AudioManagerUtilities/CMakeLists.txt b/AudioManagerUtilities/CMakeLists.txt index 7a0c5cc..cc122eb 100644 --- a/AudioManagerUtilities/CMakeLists.txt +++ b/AudioManagerUtilities/CMakeLists.txt @@ -40,6 +40,23 @@ SET(AUDIO_MANAGER_UTILITIES_SRCS_CXX src/CAmCommandLineSingleton.cpp src/CAmDltWrapper.cpp src/CAmSocketHandler.cpp) + +if(WITH_SYSTEMD_WATCHDOG) + set (AUDIO_MANAGER_UTILITIES_SRCS_CXX + ${AUDIO_MANAGER_UTILITIES_SRCS_CXX} + src/CAmWatchdog.cpp) + set (AM_LINK_LIBS + ${AM_LINK_LIBS} + ${SYSTEMD_LIBRARIES}) +endif(WITH_SYSTEMD_WATCHDOG) + + +if (NOT SYSTEMD_FOUND) + set (AUDIO_MANAGER_UTILITIES_SRCS_CXX + ${AUDIO_MANAGER_UTILITIES_SRCS_CXX} + src/sd-daemon.c) +endif (NOT SYSTEMD_FOUND) + IF (WITH_DBUS_WRAPPER) pkg_check_modules (DBUS "dbus-1 >= 1.4") @@ -80,6 +97,8 @@ IF (WITH_SHARED_UTILITIES) LIBRARY DESTINATION lib PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ GROUP_EXECUTE GROUP_READ WORLD_EXECUTE WORLD_READ COMPONENT bin) + configure_file( ${CMAKE_SOURCE_DIR}/cmake/audiomanagerutilities.pc.in ${CMAKE_BINARY_DIR}/audiomanagerutilities.pc @ONLY ) + install(FILES ${CMAKE_BINARY_DIR}/audiomanagerutilities.pc DESTINATION lib/pkgconfig COMPONENT devel) ELSE (WITH_SHARED_UTILITIES) INSTALL(TARGETS AudioManagerUtilities ARCHIVE DESTINATION lib diff --git a/AudioManagerUtilities/include/CAmWatchdog.h b/AudioManagerUtilities/include/CAmWatchdog.h new file mode 100755 index 0000000..4449c75 --- /dev/null +++ b/AudioManagerUtilities/include/CAmWatchdog.h @@ -0,0 +1,50 @@ +/** + * SPDX license identifier: MPL-2.0 + * + * Copyright (C) 2012, BMW AG + * + * This file is part of GENIVI Project AudioManager. + * + * Contributions are licensed to the GENIVI Alliance under one or more + * Contribution License Agreements. + * + * \copyright + * This Source Code Form is subject to the terms of the + * Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with + * this file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * + * \author Christian Linke, christian.linke@bmw.de BMW 2011,2012 + * + * \file CAmWatchdog.h + * For further information see http://www.genivi.org/. + * + */ + +#ifndef CAMWATCHDOG_H_ +#define CAMWATCHDOG_H_ + +#include "CAmSocketHandler.h" + +namespace am +{ + +/** + * Implements the watchdog of the AudioManager with the help of systemd + */ +class CAmWatchdog +{ +public: + CAmWatchdog(CAmSocketHandler* CAmSocketHandler); + virtual ~CAmWatchdog(); + void startWatchdog(); //!< starts the watchdog by sending ready to systemD + void timerCallback(sh_timerHandle_t handle, void * userData); //!< the watchdog timer callback + TAmShTimerCallBack TimerCallback; + +private: + CAmSocketHandler* mpCAmSocketHandler; //!< pointer to the sockethandler + sh_timerHandle_t mHandle; //!< handle of the timer +}; + +} /* namespace am */ +#endif /* CAMWATCHDOG_H_ */ diff --git a/AudioManagerUtilities/include/sd-daemon.h b/AudioManagerUtilities/include/sd-daemon.h new file mode 100644 index 0000000..50f7409 --- /dev/null +++ b/AudioManagerUtilities/include/sd-daemon.h @@ -0,0 +1,286 @@ +/** + * SPDX license identifier: MIT + */ + +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +#ifndef foosddaemonhfoo +#define foosddaemonhfoo + +/*** + Copyright 2010 Lennart Poettering + + Permission is hereby granted, free of charge, to any person + obtaining a copy of this software and associated documentation files + (the "Software"), to deal in the Software without restriction, + including without limitation the rights to use, copy, modify, merge, + publish, distribute, sublicense, and/or sell copies of the Software, + and to permit persons to whom the Software is furnished to do so, + subject to the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. +***/ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* + Reference implementation of a few systemd related interfaces for + writing daemons. These interfaces are trivial to implement. To + simplify porting we provide this reference implementation. + Applications are welcome to reimplement the algorithms described + here if they do not want to include these two source files. + + The following functionality is provided: + + - Support for logging with log levels on stderr + - File descriptor passing for socket-based activation + - Daemon startup and status notification + - Detection of systemd boots + + You may compile this with -DDISABLE_SYSTEMD to disable systemd + support. This makes all those calls NOPs that are directly related to + systemd (i.e. only sd_is_xxx() will stay useful). + + Since this is drop-in code we don't want any of our symbols to be + exported in any case. Hence we declare hidden visibility for all of + them. + + You may find an up-to-date version of these source files online: + + http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h + http://cgit.freedesktop.org/systemd/systemd/plain/src/sd-daemon.c + + This should compile on non-Linux systems, too, but with the + exception of the sd_is_xxx() calls all functions will become NOPs. + + See sd-daemon(7) for more information. +*/ + +#ifndef _sd_printf_attr_ +#if __GNUC__ >= 4 +#define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b))) +#else +#define _sd_printf_attr_(a,b) +#endif +#endif + +/* + Log levels for usage on stderr: + + fprintf(stderr, SD_NOTICE "Hello World!\n"); + + This is similar to printk() usage in the kernel. +*/ +#define SD_EMERG "<0>" /* system is unusable */ +#define SD_ALERT "<1>" /* action must be taken immediately */ +#define SD_CRIT "<2>" /* critical conditions */ +#define SD_ERR "<3>" /* error conditions */ +#define SD_WARNING "<4>" /* warning conditions */ +#define SD_NOTICE "<5>" /* normal but significant condition */ +#define SD_INFO "<6>" /* informational */ +#define SD_DEBUG "<7>" /* debug-level messages */ + +/* The first passed file descriptor is fd 3 */ +#define SD_LISTEN_FDS_START 3 + +/* + Returns how many file descriptors have been passed, or a negative + errno code on failure. Optionally, removes the $LISTEN_FDS and + $LISTEN_PID file descriptors from the environment (recommended, but + problematic in threaded environments). If r is the return value of + this function you'll find the file descriptors passed as fds + SD_LISTEN_FDS_START to SD_LISTEN_FDS_START+r-1. Returns a negative + errno style error code on failure. This function call ensures that + the FD_CLOEXEC flag is set for the passed file descriptors, to make + sure they are not passed on to child processes. If FD_CLOEXEC shall + not be set, the caller needs to unset it after this call for all file + descriptors that are used. + + See sd_listen_fds(3) for more information. +*/ +int sd_listen_fds(int unset_environment); + +/* + Helper call for identifying a passed file descriptor. Returns 1 if + the file descriptor is a FIFO in the file system stored under the + specified path, 0 otherwise. If path is NULL a path name check will + not be done and the call only verifies if the file descriptor + refers to a FIFO. Returns a negative errno style error code on + failure. + + See sd_is_fifo(3) for more information. +*/ +int sd_is_fifo(int fd, const char *path); + +/* + Helper call for identifying a passed file descriptor. Returns 1 if + the file descriptor is a special character device on the file + system stored under the specified path, 0 otherwise. + If path is NULL a path name check will not be done and the call + only verifies if the file descriptor refers to a special character. + Returns a negative errno style error code on failure. + + See sd_is_special(3) for more information. +*/ +int sd_is_special(int fd, const char *path); + +/* + Helper call for identifying a passed file descriptor. Returns 1 if + the file descriptor is a socket of the specified family (AF_INET, + ...) and type (SOCK_DGRAM, SOCK_STREAM, ...), 0 otherwise. If + family is 0 a socket family check will not be done. If type is 0 a + socket type check will not be done and the call only verifies if + the file descriptor refers to a socket. If listening is > 0 it is + verified that the socket is in listening mode. (i.e. listen() has + been called) If listening is == 0 it is verified that the socket is + not in listening mode. If listening is < 0 no listening mode check + is done. Returns a negative errno style error code on failure. + + See sd_is_socket(3) for more information. +*/ +int sd_is_socket(int fd, int family, int type, int listening); + +/* + Helper call for identifying a passed file descriptor. Returns 1 if + the file descriptor is an Internet socket, of the specified family + (either AF_INET or AF_INET6) and the specified type (SOCK_DGRAM, + SOCK_STREAM, ...), 0 otherwise. If version is 0 a protocol version + check is not done. If type is 0 a socket type check will not be + done. If port is 0 a socket port check will not be done. The + listening flag is used the same way as in sd_is_socket(). Returns a + negative errno style error code on failure. + + See sd_is_socket_inet(3) for more information. +*/ +int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port); + +/* + Helper call for identifying a passed file descriptor. Returns 1 if + the file descriptor is an AF_UNIX socket of the specified type + (SOCK_DGRAM, SOCK_STREAM, ...) and path, 0 otherwise. If type is 0 + a socket type check will not be done. If path is NULL a socket path + check will not be done. For normal AF_UNIX sockets set length to + 0. For abstract namespace sockets set length to the length of the + socket name (including the initial 0 byte), and pass the full + socket path in path (including the initial 0 byte). The listening + flag is used the same way as in sd_is_socket(). Returns a negative + errno style error code on failure. + + See sd_is_socket_unix(3) for more information. +*/ +int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length); + +/* + Helper call for identifying a passed file descriptor. Returns 1 if + the file descriptor is a POSIX Message Queue of the specified name, + 0 otherwise. If path is NULL a message queue name check is not + done. Returns a negative errno style error code on failure. +*/ +int sd_is_mq(int fd, const char *path); + +/* + Informs systemd about changed daemon state. This takes a number of + newline separated environment-style variable assignments in a + string. The following variables are known: + + READY=1 Tells systemd that daemon startup is finished (only + relevant for services of Type=notify). The passed + argument is a boolean "1" or "0". Since there is + little value in signaling non-readiness the only + value daemons should send is "READY=1". + + STATUS=... Passes a single-line status string back to systemd + that describes the daemon state. This is free-from + and can be used for various purposes: general state + feedback, fsck-like programs could pass completion + percentages and failing programs could pass a human + readable error message. Example: "STATUS=Completed + 66% of file system check..." + + ERRNO=... If a daemon fails, the errno-style error code, + formatted as string. Example: "ERRNO=2" for ENOENT. + + BUSERROR=... If a daemon fails, the D-Bus error-style error + code. Example: "BUSERROR=org.freedesktop.DBus.Error.TimedOut" + + MAINPID=... The main pid of a daemon, in case systemd did not + fork off the process itself. Example: "MAINPID=4711" + + WATCHDOG=1 Tells systemd to update the watchdog timestamp. + Services using this feature should do this in + regular intervals. A watchdog framework can use the + timestamps to detect failed services. + + Daemons can choose to send additional variables. However, it is + recommended to prefix variable names not listed above with X_. + + Returns a negative errno-style error code on failure. Returns > 0 + if systemd could be notified, 0 if it couldn't possibly because + systemd is not running. + + Example: When a daemon finished starting up, it could issue this + call to notify systemd about it: + + sd_notify(0, "READY=1"); + + See sd_notifyf() for more complete examples. + + See sd_notify(3) for more information. +*/ +int sd_notify(int unset_environment, const char *state); + +/* + Similar to sd_notify() but takes a format string. + + Example 1: A daemon could send the following after initialization: + + sd_notifyf(0, "READY=1\n" + "STATUS=Processing requests...\n" + "MAINPID=%lu", + (unsigned long) getpid()); + + Example 2: A daemon could send the following shortly before + exiting, on failure: + + sd_notifyf(0, "STATUS=Failed to start up: %s\n" + "ERRNO=%i", + strerror(errno), + errno); + + See sd_notifyf(3) for more information. +*/ +int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_attr_(2,3); + +/* + Returns > 0 if the system was booted with systemd. Returns < 0 on + error. Returns 0 if the system was not booted with systemd. Note + that all of the functions above handle non-systemd boots just + fine. You should NOT protect them with a call to this function. Also + note that this function checks whether the system, not the user + session is controlled by systemd. However the functions above work + for both user and system services. + + See sd_booted(3) for more information. +*/ +int sd_booted(void); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/AudioManagerUtilities/src/CAmWatchdog.cpp b/AudioManagerUtilities/src/CAmWatchdog.cpp new file mode 100755 index 0000000..db65095 --- /dev/null +++ b/AudioManagerUtilities/src/CAmWatchdog.cpp @@ -0,0 +1,113 @@ +/** + * SPDX license identifier: MPL-2.0 + * + * Copyright (C) 2012, BMW AG + * + * This file is part of GENIVI Project AudioManager. + * + * Contributions are licensed to the GENIVI Alliance under one or more + * Contribution License Agreements. + * + * \copyright + * This Source Code Form is subject to the terms of the + * Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with + * this file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * + * \author Christian Linke, christian.linke@bmw.de BMW 2011,2012 + * + * \file CAmWatchdog.cpp + * For further information see http://www.genivi.org/. + * + */ + +#include "CAmWatchdog.h" +#include +#include +#include +#include "audiomanagerconfig.h" +#include "CAmDltWrapper.h" + +#ifdef SYSTEMD_FOUND + #include +#else + #include "sd-daemon.h" +#endif + +namespace am +{ + +CAmWatchdog::CAmWatchdog(CAmSocketHandler* CAmSocketHandler) : + TimerCallback(this, &CAmWatchdog::timerCallback), // + mpCAmSocketHandler(CAmSocketHandler), // + mHandle(0) // +{ + assert(mpCAmSocketHandler); + + + //first retrieve the timeout interval + + int watchdogTimeout = 0; + + char* wusec=getenv("WATCHDOG_USEC"); + if (wusec) + watchdogTimeout=atoi(wusec); + + if (watchdogTimeout > 0) + { + timespec timeout; + + //calculate the half cycle as the right interval to trigger the watchdog. + timeout.tv_sec = (watchdogTimeout / 2) / 1000000; + timeout.tv_nsec = ((watchdogTimeout / 2) % 1000000) * 1000; + logInfo("CAmWatchdog::CAmWatchdog setting watchdog timeout:", watchdogTimeout, "us. Notification set to:", + timeout.tv_sec, "sec and", timeout.tv_nsec, "ns"); + + //add the timer here + if (mpCAmSocketHandler->addTimer(timeout, &TimerCallback, mHandle, NULL)) + { + logError("CAmWatchdog::CAmWatchdog failed to add timer"); + throw std::runtime_error("CAmWatchdog::CAmWatchdog failed to add timer"); + } + } + + else + { + logInfo("CAmWatchdog::CAmWatchdog watchdog timeout was ", watchdogTimeout, " museconds, no watchdog active"); + } +} + +CAmWatchdog::~CAmWatchdog() +{ + //remove the timer again. + if (mHandle!=0) + mpCAmSocketHandler->removeTimer(mHandle); +} + +void CAmWatchdog::timerCallback(sh_timerHandle_t handle, void* userData) +{ + (void) userData; + int error(sd_notify(0, "WATCHDOG=1")); + if (error < 0) + { + logError("CAmWatchdog::timerCallback could not reset watchdog, error ", error); + throw std::runtime_error("CAmWatchdog::timerCallback could not reset watchdog"); + } + + mpCAmSocketHandler->restartTimer(handle); +} + +void CAmWatchdog::startWatchdog() +{ + int error(sd_notify(0, "READY=1")); + if (error < 0) + { + logError("CAmWatchdog::startWatchdog could not start watchdog, error ", error); + throw std::runtime_error("CAmWatchdog::startWatchdog could not start watchdog"); + } + logInfo("READY=1 was sent to systemd"); +} + +} + +/* namespace am */ diff --git a/AudioManagerUtilities/src/sd-daemon.c b/AudioManagerUtilities/src/sd-daemon.c new file mode 100644 index 0000000..cf35148 --- /dev/null +++ b/AudioManagerUtilities/src/sd-daemon.c @@ -0,0 +1,534 @@ +/** + * SPDX license identifier: MIT + */ + +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + Copyright 2010 Lennart Poettering + + Permission is hereby granted, free of charge, to any person + obtaining a copy of this software and associated documentation files + (the "Software"), to deal in the Software without restriction, + including without limitation the rights to use, copy, modify, merge, + publish, distribute, sublicense, and/or sell copies of the Software, + and to permit persons to whom the Software is furnished to do so, + subject to the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. +***/ + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif + +#include +#include +#include +#include +#ifdef __BIONIC__ +#include +#else +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined(__linux__) +#include +#endif + +#include "sd-daemon.h" + +#if (__GNUC__ >= 4) +#ifdef SD_EXPORT_SYMBOLS +/* Export symbols */ +#define _sd_export_ __attribute__ ((visibility("default"))) +#else +/* Don't export the symbols */ +#define _sd_export_ __attribute__ ((visibility("hidden"))) +#endif +#else +#define _sd_export_ +#endif + +_sd_export_ int sd_listen_fds(int unset_environment) { + +#if defined(DISABLE_SYSTEMD) || !defined(__linux__) + return 0; +#else + int r, fd; + const char *e; + char *p = NULL; + unsigned long l; + + if (!(e = getenv("LISTEN_PID"))) { + r = 0; + goto finish; + } + + errno = 0; + l = strtoul(e, &p, 10); + + if (errno != 0) { + r = -errno; + goto finish; + } + + if (!p || *p || l <= 0) { + r = -EINVAL; + goto finish; + } + + /* Is this for us? */ + if (getpid() != (pid_t) l) { + r = 0; + goto finish; + } + + if (!(e = getenv("LISTEN_FDS"))) { + r = 0; + goto finish; + } + + errno = 0; + l = strtoul(e, &p, 10); + + if (errno != 0) { + r = -errno; + goto finish; + } + + if (!p || *p) { + r = -EINVAL; + goto finish; + } + + for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + (int) l; fd ++) { + int flags; + + if ((flags = fcntl(fd, F_GETFD)) < 0) { + r = -errno; + goto finish; + } + + if (flags & FD_CLOEXEC) + continue; + + if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0) { + r = -errno; + goto finish; + } + } + + r = (int) l; + +finish: + if (unset_environment) { + unsetenv("LISTEN_PID"); + unsetenv("LISTEN_FDS"); + } + + return r; +#endif +} + +_sd_export_ int sd_is_fifo(int fd, const char *path) { + struct stat st_fd; + + if (fd < 0) + return -EINVAL; + + memset(&st_fd, 0, sizeof(st_fd)); + if (fstat(fd, &st_fd) < 0) + return -errno; + + if (!S_ISFIFO(st_fd.st_mode)) + return 0; + + if (path) { + struct stat st_path; + + memset(&st_path, 0, sizeof(st_path)); + if (stat(path, &st_path) < 0) { + + if (errno == ENOENT || errno == ENOTDIR) + return 0; + + return -errno; + } + + return + st_path.st_dev == st_fd.st_dev && + st_path.st_ino == st_fd.st_ino; + } + + return 1; +} + +_sd_export_ int sd_is_special(int fd, const char *path) { + struct stat st_fd; + + if (fd < 0) + return -EINVAL; + + if (fstat(fd, &st_fd) < 0) + return -errno; + + if (!S_ISREG(st_fd.st_mode) && !S_ISCHR(st_fd.st_mode)) + return 0; + + if (path) { + struct stat st_path; + + if (stat(path, &st_path) < 0) { + + if (errno == ENOENT || errno == ENOTDIR) + return 0; + + return -errno; + } + + if (S_ISREG(st_fd.st_mode) && S_ISREG(st_path.st_mode)) + return + st_path.st_dev == st_fd.st_dev && + st_path.st_ino == st_fd.st_ino; + else if (S_ISCHR(st_fd.st_mode) && S_ISCHR(st_path.st_mode)) + return st_path.st_rdev == st_fd.st_rdev; + else + return 0; + } + + return 1; +} + +static int sd_is_socket_internal(int fd, int type, int listening) { + struct stat st_fd; + + if (fd < 0 || type < 0) + return -EINVAL; + + if (fstat(fd, &st_fd) < 0) + return -errno; + + if (!S_ISSOCK(st_fd.st_mode)) + return 0; + + if (type != 0) { + int other_type = 0; + socklen_t l = sizeof(other_type); + + if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &other_type, &l) < 0) + return -errno; + + if (l != sizeof(other_type)) + return -EINVAL; + + if (other_type != type) + return 0; + } + + if (listening >= 0) { + int accepting = 0; + socklen_t l = sizeof(accepting); + + if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &accepting, &l) < 0) + return -errno; + + if (l != sizeof(accepting)) + return -EINVAL; + + if (!accepting != !listening) + return 0; + } + + return 1; +} + +union sockaddr_union { + struct sockaddr sa; + struct sockaddr_in in4; + struct sockaddr_in6 in6; + struct sockaddr_un un; + struct sockaddr_storage storage; +}; + +_sd_export_ int sd_is_socket(int fd, int family, int type, int listening) { + int r; + + if (family < 0) + return -EINVAL; + + if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) + return r; + + if (family > 0) { + union sockaddr_union sockaddr; + socklen_t l; + + memset(&sockaddr, 0, sizeof(sockaddr)); + l = sizeof(sockaddr); + + if (getsockname(fd, &sockaddr.sa, &l) < 0) + return -errno; + + if (l < sizeof(sa_family_t)) + return -EINVAL; + + return sockaddr.sa.sa_family == family; + } + + return 1; +} + +_sd_export_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) { + union sockaddr_union sockaddr; + socklen_t l; + int r; + + if (family != 0 && family != AF_INET && family != AF_INET6) + return -EINVAL; + + if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) + return r; + + memset(&sockaddr, 0, sizeof(sockaddr)); + l = sizeof(sockaddr); + + if (getsockname(fd, &sockaddr.sa, &l) < 0) + return -errno; + + if (l < sizeof(sa_family_t)) + return -EINVAL; + + if (sockaddr.sa.sa_family != AF_INET && + sockaddr.sa.sa_family != AF_INET6) + return 0; + + if (family > 0) + if (sockaddr.sa.sa_family != family) + return 0; + + if (port > 0) { + if (sockaddr.sa.sa_family == AF_INET) { + if (l < sizeof(struct sockaddr_in)) + return -EINVAL; + + return htons(port) == sockaddr.in4.sin_port; + } else { + if (l < sizeof(struct sockaddr_in6)) + return -EINVAL; + + return htons(port) == sockaddr.in6.sin6_port; + } + } + + return 1; +} + +_sd_export_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) { + union sockaddr_union sockaddr; + socklen_t l; + int r; + + if ((r = sd_is_socket_internal(fd, type, listening)) <= 0) + return r; + + memset(&sockaddr, 0, sizeof(sockaddr)); + l = sizeof(sockaddr); + + if (getsockname(fd, &sockaddr.sa, &l) < 0) + return -errno; + + if (l < sizeof(sa_family_t)) + return -EINVAL; + + if (sockaddr.sa.sa_family != AF_UNIX) + return 0; + + if (path) { + if (length <= 0) + length = strlen(path); + + if (length <= 0) + /* Unnamed socket */ + return l == offsetof(struct sockaddr_un, sun_path); + + if (path[0]) + /* Normal path socket */ + return + (l >= offsetof(struct sockaddr_un, sun_path) + length + 1) && + memcmp(path, sockaddr.un.sun_path, length+1) == 0; + else + /* Abstract namespace socket */ + return + (l == offsetof(struct sockaddr_un, sun_path) + length) && + memcmp(path, sockaddr.un.sun_path, length) == 0; + } + + return 1; +} + +_sd_export_ int sd_is_mq(int fd, const char *path) { +#if !defined(__linux__) + return 0; +#else + struct mq_attr attr; + + if (fd < 0) + return -EINVAL; + + if (mq_getattr(fd, &attr) < 0) + return -errno; + + if (path) { + char fpath[PATH_MAX]; + struct stat a, b; + + if (path[0] != '/') + return -EINVAL; + + if (fstat(fd, &a) < 0) + return -errno; + + strncpy(stpcpy(fpath, "/dev/mqueue"), path, sizeof(fpath) - 12); + fpath[sizeof(fpath)-1] = 0; + + if (stat(fpath, &b) < 0) + return -errno; + + if (a.st_dev != b.st_dev || + a.st_ino != b.st_ino) + return 0; + } + + return 1; +#endif +} + +_sd_export_ int sd_notify(int unset_environment, const char *state) { +#if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC) + return 0; +#else + int fd = -1, r; + struct msghdr msghdr; + struct iovec iovec; + union sockaddr_union sockaddr; + const char *e; + + if (!state) { + r = -EINVAL; + goto finish; + } + + if (!(e = getenv("NOTIFY_SOCKET"))) + return 0; + + /* Must be an abstract socket, or an absolute path */ + if ((e[0] != '@' && e[0] != '/') || e[1] == 0) { + r = -EINVAL; + goto finish; + } + + if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) { + r = -errno; + goto finish; + } + + memset(&sockaddr, 0, sizeof(sockaddr)); + sockaddr.sa.sa_family = AF_UNIX; + strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path)); + + if (sockaddr.un.sun_path[0] == '@') + sockaddr.un.sun_path[0] = 0; + + memset(&iovec, 0, sizeof(iovec)); + iovec.iov_base = (char*) state; + iovec.iov_len = strlen(state); + + memset(&msghdr, 0, sizeof(msghdr)); + msghdr.msg_name = &sockaddr; + msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(e); + + if (msghdr.msg_namelen > sizeof(struct sockaddr_un)) + msghdr.msg_namelen = sizeof(struct sockaddr_un); + + msghdr.msg_iov = &iovec; + msghdr.msg_iovlen = 1; + + if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) { + r = -errno; + goto finish; + } + + r = 1; + +finish: + if (unset_environment) + unsetenv("NOTIFY_SOCKET"); + + if (fd >= 0) + close(fd); + + return r; +#endif +} + +_sd_export_ int sd_notifyf(int unset_environment, const char *format, ...) { +#if defined(DISABLE_SYSTEMD) || !defined(__linux__) + return 0; +#else + va_list ap; + char *p = NULL; + int r; + + va_start(ap, format); + r = vasprintf(&p, format, ap); + va_end(ap); + + if (r < 0 || !p) + return -ENOMEM; + + r = sd_notify(unset_environment, p); + free(p); + + return r; +#endif +} + +_sd_export_ int sd_booted(void) { +#if defined(DISABLE_SYSTEMD) || !defined(__linux__) + return 0; +#else + + struct stat a, b; + + /* We simply test whether the systemd cgroup hierarchy is + * mounted */ + + if (lstat("/sys/fs/cgroup", &a) < 0) + return 0; + + if (lstat("/sys/fs/cgroup/systemd", &b) < 0) + return 0; + + return a.st_dev != b.st_dev; +#endif +} -- cgit v1.2.1