23374838686

Committed 21 Mar 2026 07:29AM UTC coverage: 59.341% (-20.0%) from 79.315%

Build # 23374838686

Build Type

Pull #15075

github

Committed by

web-flow

Commit Message

Merge 90b4e834f into 6587e363a

Pull Request Pull Request #15075: Stack 8001 v16.4

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38 of 70 new or added lines in 10 files covered. (54.29%)

34165 existing lines in 563 files now uncovered.

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0.0

/src/util-cpu.c

/* Copyright (C) 2007-2013 Open Information Security Foundation
 *
 * You can copy, redistribute or modify this Program under the terms of
 * the GNU General Public License version 2 as published by the Free
 * Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

/**
 * \file
 *
 * \author Pablo Rincon Crespo <pablo.rincon.crespo@gmail.com>
 *
 * Retrieve CPU information (configured CPUs, online CPUs)
 */

#include "suricata-common.h"
#include "util-error.h"
#include "util-debug.h"
#include "util-cpu.h"
#include "util-byte.h"

/**
 * Ok, if they should use sysconf, check that they have the macro's
 * (syscalls) defined;
 *
 * Note: For windows it's different; Check the following:
 *      SYSTEM_INFO info;
 *      GetSystemInfo(&info);
 *      -> info.dwNumberOfProcessors;
 */
#ifdef _SC_NPROCESSORS_CONF
#define SYSCONF_NPROCESSORS_CONF_COMPAT
#endif

#ifdef _SC_NPROCESSORS_ONLN
#define SYSCONF_NPROCESSORS_ONLN_COMPAT
#endif

/* This one is available on Solaris 10 */
#ifdef _SC_NPROCESSORS_MAX
#define SYSCONF_NPROCESSORS_MAX_COMPAT
#endif

/**
 * \brief Get the number of cpus configured in the system
 * \retval 0 if the syscall is not available or we have an error;
 *           otherwise it will return the number of cpus configured
 */
uint16_t UtilCpuGetNumProcessorsConfigured(void)
{
#ifdef SYSCONF_NPROCESSORS_CONF_COMPAT
        long nprocs = -1;
    nprocs = sysconf(_SC_NPROCESSORS_CONF);
    if (nprocs < 1) {
        SCLogError("Couldn't retrieve the number of cpus "
                   "configured (%s)",
                strerror(errno));
        return 0;
    }

    if (nprocs > UINT16_MAX) {
        SCLogDebug("It seems that there are more than %d CPUs "
                   "configured on this system. You can modify util-cpu.{c,h} "
                   "to use uint32_t to support it", UINT16_MAX);
        return UINT16_MAX;
    }

    return (uint16_t)nprocs;
#elif OS_WIN32
    int64_t nprocs = 0;
    const char* envvar = getenv("NUMBER_OF_PROCESSORS");
    if (envvar != NULL) {
        if (StringParseInt64(&nprocs, 10, 0, envvar) < 0) {
            SCLogWarning("Invalid value for number of "
                         "processors: %s",
                    envvar);
            return 0;
        }
    }
    if (nprocs < 1) {
        SCLogError("Couldn't retrieve the number of cpus "
                   "configured from the NUMBER_OF_PROCESSORS environment variable");
        return 0;
    }
    return (uint16_t)nprocs;
#else
    SCLogError("Couldn't retrieve the number of cpus "
               "configured, sysconf macro unavailable");
    return 0;
#endif
}

/**
 * \brief Get the number of cpus online in the system
 * \retval 0 if the syscall is not available or we have an error;
 *           otherwise it will return the number of cpus online
 */
uint16_t UtilCpuGetNumProcessorsOnline(void)
{
#ifdef SYSCONF_NPROCESSORS_ONLN_COMPAT
    long nprocs = -1;
    nprocs = sysconf(_SC_NPROCESSORS_ONLN);
    if (nprocs < 1) {
        SCLogError("Couldn't retrieve the number of cpus "
                   "online (%s)",
                strerror(errno));
        return 0;
    }

    if (nprocs > UINT16_MAX) {
        SCLogDebug("It seems that there are more than %d CPUs online. "
                   "You can modify util-cpu.{c,h} to use uint32_t to "
                   "support it", UINT16_MAX);
        return UINT16_MAX;
    }

    return (uint16_t)nprocs;
#elif OS_WIN32
        return UtilCpuGetNumProcessorsConfigured();
#else
    SCLogError("Couldn't retrieve the number of cpus online, "
               "synconf macro unavailable");
    return 0;
#endif
}

/**
 * \brief Print a summary of CPUs detected (configured and online)
 */
void UtilCpuPrintSummary(void)
{
    uint16_t cpus_conf = UtilCpuGetNumProcessorsConfigured();
    uint16_t cpus_online = UtilCpuGetNumProcessorsOnline();

    SCLogDebug("CPUs Summary: ");
    if (cpus_conf > 0)
        SCLogDebug("CPUs configured: %"PRIu16, cpus_conf);
    if (cpus_online > 0)
        SCLogInfo("CPUs/cores online: %"PRIu16, cpus_online);
    if (cpus_online == 0 && cpus_conf == 0)
        SCLogInfo("Couldn't retrieve any information of CPU's, please, send your operating "
                  "system info and check util-cpu.{c,h}");
}

/**
 * Get the current number of ticks from the CPU.
 *
 * \todo We'll have to deal with removing ticks from the extra cpuids in between
 *       2 calls.
 */
uint64_t UtilCpuGetTicks(void)
{
    uint64_t val;
#if defined(__GNUC__) && (defined(__x86_64) || defined(_X86_64_) || defined(ia_64) || defined(__i386__))
#if defined(__x86_64) || defined(_X86_64_) || defined(ia_64)
    __asm__ __volatile__ (
    "xorl %%eax,%%eax\n\t"
    "cpuid\n\t"
    ::: "%rax", "%rbx", "%rcx", "%rdx");
#else
    __asm__ __volatile__ (
    "xorl %%eax,%%eax\n\t"
    "pushl %%ebx\n\t"
    "cpuid\n\t"
    "popl %%ebx\n\t"
    ::: "%eax", "%ecx", "%edx");
#endif
    uint32_t a, d;
    __asm__ __volatile__ ("rdtsc" : "=a" (a), "=d" (d));
    val = ((uint64_t)a) | (((uint64_t)d) << 32);
#if defined(__x86_64) || defined(_X86_64_) || defined(ia_64)
    __asm__ __volatile__ (
    "xorl %%eax,%%eax\n\t"
    "cpuid\n\t"
    ::: "%rax", "%rbx", "%rcx", "%rdx");
#else
    __asm__ __volatile__ (
    "xorl %%eax,%%eax\n\t"
    "pushl %%ebx\n\t"
    "cpuid\n\t"
    "popl %%ebx\n\t"
    ::: "%eax", "%ecx", "%edx");
#endif

#elif defined(__GNUC__) && defined(__aarch64__)
    __asm__ __volatile__("isb\n\t"
                         "mrs %0,  cntvct_el0\n\t"
                         : "=r"(val));
#else /* #if defined(__GNU__) */
//#warning Using inferior version of UtilCpuGetTicks
    struct timeval now;
    gettimeofday(&now, NULL);
    val = (now.tv_sec * 1000000) + now.tv_usec;
#endif
    return val;
}

1	/* Copyright (C) 2007-2013 Open Information Security Foundation
2	*
3	* You can copy, redistribute or modify this Program under the terms of
4	* the GNU General Public License version 2 as published by the Free
5	* Software Foundation.
6	*
7	* This program is distributed in the hope that it will be useful,
8	* but WITHOUT ANY WARRANTY; without even the implied warranty of
9	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10	* GNU General Public License for more details.
11	*
12	* You should have received a copy of the GNU General Public License
13	* version 2 along with this program; if not, write to the Free Software
14	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15	* 02110-1301, USA.
16	*/
17
18	/**
19	* \file
20	*
21	* \author Pablo Rincon Crespo <pablo.rincon.crespo@gmail.com>
22	*
23	* Retrieve CPU information (configured CPUs, online CPUs)
24	*/
25
26	#include "suricata-common.h"
27	#include "util-error.h"
28	#include "util-debug.h"
29	#include "util-cpu.h"
30	#include "util-byte.h"
31
32	/**
33	* Ok, if they should use sysconf, check that they have the macro's
34	* (syscalls) defined;
35	*
36	* Note: For windows it's different; Check the following:
37	* SYSTEM_INFO info;
38	* GetSystemInfo(&info);
39	* -> info.dwNumberOfProcessors;
40	*/
41	#ifdef _SC_NPROCESSORS_CONF
42	#define SYSCONF_NPROCESSORS_CONF_COMPAT
43	#endif
44
45	#ifdef _SC_NPROCESSORS_ONLN
46	#define SYSCONF_NPROCESSORS_ONLN_COMPAT
47	#endif
48
49	/* This one is available on Solaris 10 */
50	#ifdef _SC_NPROCESSORS_MAX
51	#define SYSCONF_NPROCESSORS_MAX_COMPAT
52	#endif
53
54	/**
55	* \brief Get the number of cpus configured in the system
56	* \retval 0 if the syscall is not available or we have an error;
57	* otherwise it will return the number of cpus configured
58	*/
59	uint16_t UtilCpuGetNumProcessorsConfigured(void)
UNCOV 60	{	×
UNCOV 61	#ifdef SYSCONF_NPROCESSORS_CONF_COMPAT	×
UNCOV 62	long nprocs = -1;	×
UNCOV 63	nprocs = sysconf(_SC_NPROCESSORS_CONF);	×
UNCOV 64	if (nprocs < 1) {	×
65	SCLogError("Couldn't retrieve the number of cpus "	×
66	"configured (%s)",	×
67	strerror(errno));	×
68	return 0;	×
69	}	×
70
UNCOV 71	if (nprocs > UINT16_MAX) {	×
72	SCLogDebug("It seems that there are more than %d CPUs "	×
73	"configured on this system. You can modify util-cpu.{c,h} "	×
74	"to use uint32_t to support it", UINT16_MAX);	×
75	return UINT16_MAX;	×
76	}	×
77
UNCOV 78	return (uint16_t)nprocs;	×
79	#elif OS_WIN32
80	int64_t nprocs = 0;
81	const char* envvar = getenv("NUMBER_OF_PROCESSORS");
82	if (envvar != NULL) {
83	if (StringParseInt64(&nprocs, 10, 0, envvar) < 0) {
84	SCLogWarning("Invalid value for number of "
85	"processors: %s",
86	envvar);
87	return 0;
88	}
89	}
90	if (nprocs < 1) {
91	SCLogError("Couldn't retrieve the number of cpus "
92	"configured from the NUMBER_OF_PROCESSORS environment variable");
93	return 0;
94	}
95	return (uint16_t)nprocs;
96	#else
97	SCLogError("Couldn't retrieve the number of cpus "
98	"configured, sysconf macro unavailable");
99	return 0;
100	#endif
UNCOV 101	}	×
102
103	/**
104	* \brief Get the number of cpus online in the system
105	* \retval 0 if the syscall is not available or we have an error;
106	* otherwise it will return the number of cpus online
107	*/
108	uint16_t UtilCpuGetNumProcessorsOnline(void)
UNCOV 109	{	×
UNCOV 110	#ifdef SYSCONF_NPROCESSORS_ONLN_COMPAT	×
UNCOV 111	long nprocs = -1;	×
UNCOV 112	nprocs = sysconf(_SC_NPROCESSORS_ONLN);	×
UNCOV 113	if (nprocs < 1) {	×
114	SCLogError("Couldn't retrieve the number of cpus "	×
115	"online (%s)",	×
116	strerror(errno));	×
117	return 0;	×
118	}	×
119
UNCOV 120	if (nprocs > UINT16_MAX) {	×
121	SCLogDebug("It seems that there are more than %d CPUs online. "	×
122	"You can modify util-cpu.{c,h} to use uint32_t to "	×
123	"support it", UINT16_MAX);	×
124	return UINT16_MAX;	×
125	}	×
126
UNCOV 127	return (uint16_t)nprocs;	×
128	#elif OS_WIN32
129	return UtilCpuGetNumProcessorsConfigured();
130	#else
131	SCLogError("Couldn't retrieve the number of cpus online, "
132	"synconf macro unavailable");
133	return 0;
134	#endif
UNCOV 135	}	×
136
137	/**
138	* \brief Print a summary of CPUs detected (configured and online)
139	*/
140	void UtilCpuPrintSummary(void)
UNCOV 141	{	×
UNCOV 142	uint16_t cpus_conf = UtilCpuGetNumProcessorsConfigured();	×
UNCOV 143	uint16_t cpus_online = UtilCpuGetNumProcessorsOnline();	×
144
UNCOV 145	SCLogDebug("CPUs Summary: ");	×
UNCOV 146	if (cpus_conf > 0)	×
UNCOV 147	SCLogDebug("CPUs configured: %"PRIu16, cpus_conf);	×
UNCOV 148	if (cpus_online > 0)	×
UNCOV 149	SCLogInfo("CPUs/cores online: %"PRIu16, cpus_online);	×
UNCOV 150	if (cpus_online == 0 && cpus_conf == 0)	×
151	SCLogInfo("Couldn't retrieve any information of CPU's, please, send your operating "	×
UNCOV 152	"system info and check util-cpu.{c,h}");	×
UNCOV 153	}	×
154
155	/**
156	* Get the current number of ticks from the CPU.
157	*
158	* \todo We'll have to deal with removing ticks from the extra cpuids in between
159	* 2 calls.
160	*/
161	uint64_t UtilCpuGetTicks(void)
UNCOV 162	{	×
UNCOV 163	uint64_t val;	×
UNCOV 164	#if defined(__GNUC__) && (defined(__x86_64) \|\| defined(_X86_64_) \|\| defined(ia_64) \|\| defined(__i386__))	×
UNCOV 165	#if defined(__x86_64) \|\| defined(_X86_64_) \|\| defined(ia_64)	×
UNCOV 166	__asm__ __volatile__ (	×
UNCOV 167	"xorl %%eax,%%eax\n\t"	×
UNCOV 168	"cpuid\n\t"	×
UNCOV 169	::: "%rax", "%rbx", "%rcx", "%rdx");	×
170	#else
171	__asm__ __volatile__ (
172	"xorl %%eax,%%eax\n\t"
173	"pushl %%ebx\n\t"
174	"cpuid\n\t"
175	"popl %%ebx\n\t"
176	::: "%eax", "%ecx", "%edx");
177	#endif
UNCOV 178	uint32_t a, d;	×
UNCOV 179	__asm__ __volatile__ ("rdtsc" : "=a" (a), "=d" (d));	×
UNCOV 180	val = ((uint64_t)a) \| (((uint64_t)d) << 32);	×
UNCOV 181	#if defined(__x86_64) \|\| defined(_X86_64_) \|\| defined(ia_64)	×
UNCOV 182	__asm__ __volatile__ (	×
UNCOV 183	"xorl %%eax,%%eax\n\t"	×
UNCOV 184	"cpuid\n\t"	×
UNCOV 185	::: "%rax", "%rbx", "%rcx", "%rdx");	×
186	#else
187	__asm__ __volatile__ (
188	"xorl %%eax,%%eax\n\t"
189	"pushl %%ebx\n\t"
190	"cpuid\n\t"
191	"popl %%ebx\n\t"
192	::: "%eax", "%ecx", "%edx");
193	#endif
194
195	#elif defined(__GNUC__) && defined(__aarch64__)
196	__asm__ __volatile__("isb\n\t"
197	"mrs %0, cntvct_el0\n\t"
198	: "=r"(val));
199	#else /* #if defined(__GNU__) */
200	//#warning Using inferior version of UtilCpuGetTicks
201	struct timeval now;
202	gettimeofday(&now, NULL);
203	val = (now.tv_sec * 1000000) + now.tv_usec;
204	#endif
UNCOV 205	return val;	×
UNCOV 206	}	×

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