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using common.c to extract date and using nios.c to check kernel version(a bit specific to nios) and using c api instead of system command to get uname

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This commit is contained in:
maliakal_d
2020-09-10 18:41:31 +02:00
parent cf8785ad2e
commit 00f780665f
6 changed files with 74 additions and 85 deletions
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10
slsDetectorServers/slsDetectorServer/src/common.c
View File

@ -1,3 +1,4 @@
#define _GNU_SOURCE // needed for strptime to be at the top
#include "common.h"
#include "clogger.h"
#include "sls_detector_defs.h"
@ -59,4 +60,13 @@ int getAbsPath(char *buf, size_t bufSize, char *fname) {
sprintf(buf, "%s/%s", dir, fname);
LOG(logDEBUG1, ("full path for %s: %s\n", fname, buf));
return OK;
}
int GetTimeFromString(char *buf, time_t *result) {
struct tm t;
if (NULL == strptime(buf, "%a %b %d %H:%M:%S %Z %Y", &t)) {
return FAIL;
}
*result = mktime(&t);
return OK;
}

55
slsDetectorServers/slsDetectorServer/src/nios.c
View File

@ -2,10 +2,13 @@
#include "RegisterDefs.h"
#include "ansi.h"
#include "clogger.h"
#include "common.h"
#include "sls_detector_defs.h"
#include <fcntl.h> // open
#include <sys/mman.h> // mmap
#include <fcntl.h> // open
#include <string.h>
#include <sys/mman.h> // mmap
#include <sys/utsname.h> // uname
/* global variables */
u_int32_t *csp0base = 0;
@ -126,4 +129,50 @@ int mapCSP0(void) {
return OK;
}
u_int32_t *Nios_getBaseAddress() { return csp0base; }
u_int32_t *Nios_getBaseAddress() { return csp0base; }
int Nios_checkKernelVersion(char *expectedVersion) {
// extract kernel date string
struct utsname buf;
if (uname(&buf) == -1) {
LOG(logERROR, ("Could not get kernel version\n"));
return FAIL;
}
// remove first word (#version number)
const char *ptr = strchr(buf.version, ' ');
if (ptr == NULL) {
LOG(logERROR, ("Could not parse kernel version\n"));
return FAIL;
}
char output[256];
memset(output, 0, 256);
strcpy(output, buf.version + (ptr - buf.version + 1));
// convert kernel date string into time
time_t kernelDate;
if (GetTimeFromString(output, &kernelDate) == FAIL) {
LOG(logERROR, ("Could not parse retrieved kernel date, %s\n", output));
return FAIL;
}
// convert expected date into time
time_t expDate;
if (GetTimeFromString(expectedVersion, &expDate) == FAIL) {
LOG(logERROR,
("Could not parse expected kernel date, %s\n", expectedVersion));
return FAIL;
}
// compare if kernel time is older than expected time
if (kernelDate < expDate) {
LOG(logERROR, ("Kernel Version Incompatible (too old)! Expected: [%s], "
"Got [%s]\n",
expectedVersion, output));
return FAIL;
}
LOG(logINFOBLUE, ("Kernel Version Compatible: %s [min.: %s]\n", output,
expectedVersion));
return OK;
}