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Fix stat in linux

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EnderIce2 2024-03-31 21:42:10 +03:00
parent 2d94246f55
commit a3b3ab76a7
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
2 changed files with 204 additions and 13 deletions
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98
include/syscall/linux/defs.hpp
View File

@ -180,12 +180,13 @@
#define RUSAGE_CHILDREN (-1)
#define RUSAGE_THREAD 1
typedef long __kernel_long_t;
typedef unsigned long __kernel_ulong_t;
typedef long __kernel_old_time_t;
typedef long __kernel_suseconds_t;
typedef int clockid_t;
typedef long time64_t;
typedef unsigned long timeu64_t;
typedef int clockid_t;
typedef long time64_t;
struct iovec
{
@ -255,4 +256,95 @@ struct linux_dirent64
char d_name[]; /* Filename (null-terminated) */
};
struct k_stat
{
#if defined(a64)
__kernel_ulong_t st_dev;
__kernel_ulong_t st_ino;
__kernel_ulong_t st_nlink;
unsigned int st_mode;
unsigned int st_uid;
unsigned int st_gid;
unsigned int __pad0;
__kernel_ulong_t st_rdev;
__kernel_long_t st_size;
__kernel_long_t st_blksize;
__kernel_long_t st_blocks;
__kernel_ulong_t st_atime;
__kernel_ulong_t st_atime_nsec;
__kernel_ulong_t st_mtime;
__kernel_ulong_t st_mtime_nsec;
__kernel_ulong_t st_ctime;
__kernel_ulong_t st_ctime_nsec;
#undef __unused
__kernel_long_t __unused[3];
#elif defined(a32)
unsigned long st_dev;
unsigned long st_ino;
unsigned short st_mode;
unsigned short st_nlink;
unsigned short st_uid;
unsigned short st_gid;
unsigned long st_rdev;
unsigned long st_size;
unsigned long st_blksize;
unsigned long st_blocks;
unsigned long st_atime;
unsigned long st_atime_nsec;
unsigned long st_mtime;
unsigned long st_mtime_nsec;
unsigned long st_ctime;
unsigned long st_ctime_nsec;
unsigned long __unused4;
unsigned long __unused5;
#else
#error "Unsupported architecture"
#endif
};
struct k_stat64
{
unsigned long long st_dev;
unsigned char __pad0[4];
unsigned long __st_ino;
unsigned int st_mode;
unsigned int st_nlink;
unsigned long st_uid;
unsigned long st_gid;
unsigned long long st_rdev;
unsigned char __pad3[4];
long long st_size;
unsigned long st_blksize;
unsigned long long st_blocks;
unsigned long st_atime;
unsigned long st_atime_nsec;
unsigned long st_mtime;
unsigned int st_mtime_nsec;
unsigned long st_ctime;
unsigned long st_ctime_nsec;
unsigned long long st_ino;
};
struct __old_kernel_stat
{
unsigned short st_dev;
unsigned short st_ino;
unsigned short st_mode;
unsigned short st_nlink;
unsigned short st_uid;
unsigned short st_gid;
unsigned short st_rdev;
#ifdef __i386__
unsigned long st_size;
unsigned long st_atime;
unsigned long st_mtime;
unsigned long st_ctime;
#else
unsigned int st_size;
unsigned int st_atime;
unsigned int st_mtime;
unsigned int st_ctime;
#endif
};
#endif // !__FENNIX_KERNEL_LINUX_DEFS_H__

119
syscalls/linux.cpp
View File

@ -320,6 +320,91 @@ void SetSigActToLinux(const SignalAction *native, k_sigaction *linux)
debug("m0:%#lx m1:%#lx | n:%#lx", linux->mask[0], linux->mask[1], native->Mask);
}
struct stat KStatToStat(struct k_stat kstat)
{
struct stat stat;
stat.st_dev = kstat.st_dev;
stat.st_ino = kstat.st_ino;
stat.st_nlink = (nlink_t)kstat.st_nlink;
stat.st_mode = kstat.st_mode;
stat.st_uid = kstat.st_uid;
stat.st_gid = kstat.st_gid;
stat.st_rdev = kstat.st_rdev;
stat.st_size = kstat.st_size;
stat.st_blksize = kstat.st_blksize;
stat.st_blocks = kstat.st_blocks;
stat.st_atime = kstat.st_atime;
// stat.st_atime_nsec = kstat.st_atime_nsec;
stat.st_mtime = kstat.st_mtime;
// stat.st_mtime_nsec = kstat.st_mtime_nsec;
stat.st_ctime = kstat.st_ctime;
// stat.st_ctime_nsec = kstat.st_ctime_nsec;
return stat;
}
struct k_stat StatToKStat(struct stat stat)
{
struct k_stat kstat;
kstat.st_dev = stat.st_dev;
kstat.st_ino = stat.st_ino;
kstat.st_nlink = stat.st_nlink;
kstat.st_mode = stat.st_mode;
kstat.st_uid = stat.st_uid;
kstat.st_gid = stat.st_gid;
kstat.st_rdev = stat.st_rdev;
kstat.st_size = stat.st_size;
kstat.st_blksize = stat.st_blksize;
kstat.st_blocks = stat.st_blocks;
kstat.st_atime = stat.st_atime;
// kstat.st_atime_nsec = stat.st_atime_nsec;
kstat.st_mtime = stat.st_mtime;
// kstat.st_mtime_nsec = stat.st_mtime_nsec;
kstat.st_ctime = stat.st_ctime;
// kstat.st_ctime_nsec = stat.st_ctime_nsec;
return kstat;
}
struct stat OKStatToStat(struct __old_kernel_stat okstat)
{
struct stat stat;
stat.st_dev = okstat.st_dev;
stat.st_ino = okstat.st_ino;
stat.st_nlink = okstat.st_nlink;
stat.st_mode = okstat.st_mode;
stat.st_uid = okstat.st_uid;
stat.st_gid = okstat.st_gid;
stat.st_rdev = okstat.st_rdev;
stat.st_size = okstat.st_size;
stat.st_atime = okstat.st_atime;
stat.st_mtime = okstat.st_mtime;
stat.st_ctime = okstat.st_ctime;
return stat;
}
struct __old_kernel_stat StatToOKStat(struct stat stat)
{
struct __old_kernel_stat okstat;
okstat.st_dev = (unsigned short)stat.st_dev;
okstat.st_ino = (unsigned short)stat.st_ino;
okstat.st_nlink = (unsigned short)stat.st_nlink;
okstat.st_mode = (unsigned short)stat.st_mode;
okstat.st_uid = (unsigned short)stat.st_uid;
okstat.st_gid = (unsigned short)stat.st_gid;
okstat.st_rdev = (unsigned short)stat.st_rdev;
#ifdef __i386__
okstat.st_size = (unsigned long)stat.st_size;
okstat.st_atime = (unsigned long)stat.st_atime;
okstat.st_mtime = (unsigned long)stat.st_mtime;
okstat.st_ctime = (unsigned long)stat.st_ctime;
#else
okstat.st_size = (unsigned int)stat.st_size;
okstat.st_atime = (unsigned int)stat.st_atime;
okstat.st_mtime = (unsigned int)stat.st_mtime;
okstat.st_ctime = (unsigned int)stat.st_ctime;
#endif
return okstat;
}
void __LinuxForkReturn(void *tableAddr)
{
#if defined(a64)
@ -415,7 +500,7 @@ static int linux_close(SysFrm *, int fd)
}
/* https://man7.org/linux/man-pages/man2/stat.2.html */
static int linux_stat(SysFrm *, const char *pathname, struct stat *statbuf)
static int linux_stat(SysFrm *, const char *pathname, struct __old_kernel_stat *statbuf)
{
PCB *pcb = thisProcess;
vfs::FileDescriptorTable *fdt = pcb->FileDescriptors;
@ -429,11 +514,14 @@ static int linux_stat(SysFrm *, const char *pathname, struct stat *statbuf)
if (pStatbuf == nullptr)
return -EFAULT;
return fdt->_stat(pPathname, pStatbuf);
struct stat nstat = OKStatToStat(*pStatbuf);
int ret = fdt->_stat(pPathname, &nstat);
*pStatbuf = StatToOKStat(nstat);
return ret;
}
/* https://man7.org/linux/man-pages/man2/fstat.2.html */
static int linux_fstat(SysFrm *, int fd, struct stat *statbuf)
static int linux_fstat(SysFrm *, int fd, struct __old_kernel_stat *statbuf)
{
#undef fstat
PCB *pcb = thisProcess;
@ -444,11 +532,14 @@ static int linux_fstat(SysFrm *, int fd, struct stat *statbuf)
if (pStatbuf == nullptr)
return -EFAULT;
return fdt->_fstat(fd, pStatbuf);
struct stat nstat = OKStatToStat(*pStatbuf);
int ret = fdt->_fstat(fd, &nstat);
*pStatbuf = StatToOKStat(nstat);
return ret;
}
/* https://man7.org/linux/man-pages/man2/lstat.2.html */
static int linux_lstat(SysFrm *, const char *pathname, struct stat *statbuf)
static int linux_lstat(SysFrm *, const char *pathname, struct __old_kernel_stat *statbuf)
{
#undef lstat
PCB *pcb = thisProcess;
@ -460,7 +551,10 @@ static int linux_lstat(SysFrm *, const char *pathname, struct stat *statbuf)
if (pPathname == nullptr || pStatbuf == nullptr)
return -EFAULT;
return fdt->_lstat(pPathname, pStatbuf);
struct stat nstat = OKStatToStat(*pStatbuf);
int ret = fdt->_lstat(pPathname, &nstat);
*pStatbuf = StatToOKStat(nstat);
return ret;
}
#include "../syscalls.h"
@ -2492,7 +2586,7 @@ static int linux_openat(SysFrm *, int dirfd, const char *pathname, int flags, mo
/* Undocumented? */
static long linux_newfstatat(SysFrm *, int dirfd, const char *pathname,
struct stat *statbuf, int flag)
struct k_stat *statbuf, int flag)
{
/* FIXME: This function is not working at all? */
@ -2504,7 +2598,7 @@ static long linux_newfstatat(SysFrm *, int dirfd, const char *pathname,
fixme("flag %#x is stub", flag);
const char *pPathname = vma->UserCheckAndGetAddress(pathname);
struct stat *pStatbuf = vma->UserCheckAndGetAddress(statbuf);
struct k_stat *pStatbuf = vma->UserCheckAndGetAddress(statbuf);
if (pPathname == nullptr || pStatbuf == nullptr)
return -EFAULT;
@ -2519,7 +2613,9 @@ static long linux_newfstatat(SysFrm *, int dirfd, const char *pathname,
const char *absPath = new char[strlen(absoluteNode->node->FullPath) + 1];
strcpy((char *)absPath, absoluteNode->node->FullPath);
delete absoluteNode;
int ret = fdt->_stat(absPath, pStatbuf);
struct stat nstat = KStatToStat(*pStatbuf);
int ret = fdt->_stat(absPath, &nstat);
*pStatbuf = StatToKStat(nstat);
delete[] absPath;
return ret;
}
@ -2532,7 +2628,10 @@ static long linux_newfstatat(SysFrm *, int dirfd, const char *pathname,
return -EBADF;
}
return fdt->_stat(pPathname, pStatbuf);
struct stat nstat = KStatToStat(*pStatbuf);
int ret = fdt->_stat(pPathname, &nstat);
*pStatbuf = StatToKStat(nstat);
return ret;
}
/* https://man7.org/linux/man-pages/man2/pipe2.2.html */