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testsuite: Do not provide finit_module(2) on older kernels

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If the test's uname -r is less that 3.8, return -ENOSYS from
finit_module(), so that the fallback is tested.
This commit is contained in:
Michal Marek 2014-02-28 13:05:30 +01:00 committed by Lucas De Marchi
parent 2ce5de0ae6
commit 063086e038
1 changed files with 24 additions and 0 deletions
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24
testsuite/init_module.c
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@ -37,6 +37,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/utsname.h>
#include <unistd.h>
/* kmod_elf_get_section() is not exported, we need the private header */
@ -280,6 +281,25 @@ long init_module(void *mem, unsigned long len, const char *args)
return err;
}
static int check_kernel_version(int major, int minor)
{
struct utsname u;
const char *p;
int maj = 0, min = 0;
if (uname(&u) < 0)
return false;
for (p = u.release; *p >= '0' && *p <= '9'; p++)
maj = maj * 10 + *p - '0';
if (*p == '.')
for (p++; *p >= '0' && *p <= '9'; p++)
min = min * 10 + *p - '0';
if (maj > major || (maj == major && min >= minor))
return true;
return false;
}
TS_EXPORT int finit_module(const int fd, const char *args, const int flags);
int finit_module(const int fd, const char *args, const int flags)
@ -289,6 +309,10 @@ int finit_module(const int fd, const char *args, const int flags)
unsigned long len;
struct stat st;
if (!check_kernel_version(3, 8)) {
errno = ENOSYS;
return -1;
}
if (fstat(fd, &st) < 0)
return -1;