NetworkManager/shared/systemd/sd-adapt-shared/nm-sd-adapt-shared.h

/* SPDX-License-Identifier: LGPL-2.1+ */
/*
 * Copyright (C) 2014 - 2018 Red Hat, Inc.
 */

#ifndef __NM_SD_ADAPT_SHARED_H__
#define __NM_SD_ADAPT_SHARED_H__

#include "nm-default.h"

#include "nm-glib-aux/nm-logging-fwd.h"

/*****************************************************************************/

/* strerror() is not thread-safe. Patch systemd-sources via a define. */
#define strerror(errsv) nm_strerror_native(errsv)

/*****************************************************************************/

/* systemd detects whether compiler supports "-Wstringop-truncation" to disable
 * the warning at particular places. Since we anyway build with -Wno-pragma,
 * we don't do that and just let systemd call
 *
 *   _Pragma("GCC diagnostic ignored \"-Wstringop-truncation\"")
 *
 * regadless whether that would result in a -Wpragma warning. */
#define HAVE_WSTRINGOP_TRUNCATION 1

/*****************************************************************************/

static inline int
_nm_log_get_max_level_realm(void)
{
    /* inline function, to avoid coverity warning about constant expression. */
    return 7 /* LOG_DEBUG */;
}
#define log_get_max_level_realm(realm) _nm_log_get_max_level_realm()

#define log_internal_realm(level, error, file, line, func, format, ...)                    \
    ({                                                                                     \
        const int        _nm_e = (error);                                                  \
        const NMLogLevel _nm_l = nm_log_level_from_syslog(LOG_PRI(level));                 \
                                                                                           \
        if (_nm_log_enabled_impl(!(NM_THREAD_SAFE_ON_MAIN_THREAD), _nm_l, LOGD_SYSTEMD)) { \
            const char *_nm_location = strrchr(("" file), '/');                            \
                                                                                           \
            _nm_log_impl(_nm_location ? _nm_location + 1 : ("" file),                      \
                         (line),                                                           \
                         (func),                                                           \
                         !(NM_THREAD_SAFE_ON_MAIN_THREAD),                                 \
                         _nm_l,                                                            \
                         LOGD_SYSTEMD,                                                     \
                         _nm_e,                                                            \
                         NULL,                                                             \
                         NULL,                                                             \
                         ("%s" format),                                                    \
                         "libsystemd: ",                                                   \
                         ##__VA_ARGS__);                                                   \
        }                                                                                  \
        (_nm_e > 0 ? -_nm_e : _nm_e);                                                      \
    })

#define log_assert_failed(text, file, line, func)                                \
    G_STMT_START                                                                 \
    {                                                                            \
        log_internal(LOG_CRIT,                                                   \
                     0,                                                          \
                     file,                                                       \
                     line,                                                       \
                     func,                                                       \
                     "Assertion '%s' failed at %s:%u, function %s(). Aborting.", \
                     text,                                                       \
                     file,                                                       \
                     line,                                                       \
                     func);                                                      \
        g_assert_not_reached();                                                  \
    }                                                                            \
    G_STMT_END

#define log_assert_failed_unreachable(text, file, line, func)                              \
    G_STMT_START                                                                           \
    {                                                                                      \
        log_internal(LOG_CRIT,                                                             \
                     0,                                                                    \
                     file,                                                                 \
                     line,                                                                 \
                     func,                                                                 \
                     "Code should not be reached '%s' at %s:%u, function %s(). Aborting.", \
                     text,                                                                 \
                     file,                                                                 \
                     line,                                                                 \
                     func);                                                                \
        g_assert_not_reached();                                                            \
    }                                                                                      \
    G_STMT_END

#define log_assert_failed_return(text, file, line, func)                         \
    ({                                                                           \
        log_internal(LOG_DEBUG,                                                  \
                     0,                                                          \
                     file,                                                       \
                     line,                                                       \
                     func,                                                       \
                     "Assertion '%s' failed at %s:%u, function %s(). Ignoring.", \
                     text,                                                       \
                     file,                                                       \
                     line,                                                       \
                     func);                                                      \
        g_return_if_fail_warning(G_LOG_DOMAIN, G_STRFUNC, text);                 \
        (void) 0;                                                                \
    })

/*****************************************************************************/

#ifndef VALGRIND
    #define VALGRIND 0
#endif

#define ENABLE_DEBUG_HASHMAP 0

/*****************************************************************************
 * The remainder of the header is only enabled when building the systemd code
 * itself.
 *****************************************************************************/

#if (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_SYSTEMD

    #include <sys/syscall.h>
    #include <sys/ioctl.h>

    #define ENABLE_GSHADOW FALSE

    #define HAVE_SECCOMP 0

/*****************************************************************************/

/* systemd cannot be compiled with "-Wdeclaration-after-statement". In particular
 * in combination with assert_cc(). */
NM_PRAGMA_WARNING_DISABLE("-Wdeclaration-after-statement")

/*****************************************************************************/

struct statx;

/*****************************************************************************/

static inline pid_t
raw_getpid(void)
{
    #if defined(__alpha__)
    return (pid_t) syscall(__NR_getxpid);
    #else
    return (pid_t) syscall(__NR_getpid);
    #endif
}

static inline pid_t
_nm_gettid(void)
{
    return (pid_t) syscall(SYS_gettid);
}
    #define gettid() _nm_gettid()

    /* we build with C11 and thus <uchar.h> provides char32_t,char16_t. */
    #define HAVE_CHAR32_T 1
    #define HAVE_CHAR16_T 1

    #if defined(HAVE_DECL_REALLOCARRAY) && HAVE_DECL_REALLOCARRAY == 1
        #define HAVE_REALLOCARRAY 1
    #else
        #define HAVE_REALLOCARRAY 0
    #endif

    #if defined(HAVE_DECL_EXPLICIT_BZERO) && HAVE_DECL_EXPLICIT_BZERO == 1
        #define HAVE_EXPLICIT_BZERO 1
    #else
        #define HAVE_EXPLICIT_BZERO 0
    #endif

    #if defined(HAVE_DECL_PIDFD_OPEN) && HAVE_DECL_PIDFD_OPEN == 1
        #define HAVE_PIDFD_OPEN 1
    #else
        #define HAVE_PIDFD_OPEN 0
    #endif

    #if defined(HAVE_DECL_PIDFD_SEND_SIGNAL) && HAVE_DECL_PIDFD_SEND_SIGNAL == 1
        #define HAVE_PIDFD_SEND_SIGNAL 1
    #else
        #define HAVE_PIDFD_SEND_SIGNAL 0
    #endif

    #if defined(HAVE_DECL_RT_SIGQUEUEINFO) && HAVE_DECL_RT_SIGQUEUEINFO == 1
        #define HAVE_RT_SIGQUEUEINFO 1
    #else
        #define HAVE_RT_SIGQUEUEINFO 0
    #endif

#endif /* (NETWORKMANAGER_COMPILATION) & NM_NETWORKMANAGER_COMPILATION_WITH_SYSTEMD */

/*****************************************************************************/

#endif /* __NM_SD_ADAPT_SHARED_H__ */