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feat(kernel): implement handling symbolic links in paths

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Signed-off-by: EnderIce2 <enderice2@protonmail.com>
This commit is contained in:
EnderIce2
2025-03-27 14:33:29 +00:00
parent 13d52897b8
commit 7491f19f9a
6 changed files with 58 additions and 3 deletions
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6
Kernel/exec/binary_parse.cpp
View File

@ -100,6 +100,12 @@ namespace Execute
BinaryType GetBinaryType(std::string Path)
{
FileNode *node = fs->GetByPath(Path.c_str(), nullptr);
if (node->IsSymbolicLink())
{
char buffer[512];
node->ReadLink(buffer, sizeof(buffer));
node = fs->GetByPath(buffer, node->Parent);
}
debug("Checking binary type of %s (returning %p)", Path.c_str(), node);
assert(node != nullptr);
return GetBinaryType(node);

15
Kernel/exec/elf/elf_loader.cpp
View File

@ -335,6 +335,13 @@ namespace Execute
}
else
{
if (ifd->IsSymbolicLink())
{
char buffer[512];
ifd->ReadLink(buffer, sizeof(buffer));
ifd = fs->GetByPath(buffer, ifd->Parent);
}
debug("ifd: %p, interpreter: %s", ifd, interpreterPath.c_str());
if (GetBinaryType(interpreterPath) != BinTypeELF)
{
@ -798,6 +805,14 @@ namespace Execute
error("Failed to open %s, errno: %d", AbsolutePath.c_str(), fd);
return;
}
if (fd->IsSymbolicLink())
{
char buffer[512];
fd->ReadLink(buffer, sizeof(buffer));
fd = fs->GetByPath(buffer, fd->Parent);
}
debug("Opened %s", AbsolutePath.c_str());
int argc = 0;

15
Kernel/exec/spawn.cpp
View File

@ -40,9 +40,20 @@ namespace Execute
return -ENOENT;
if (!fd->IsRegularFile())
return -ENOEXEC;
{
if (fd->IsSymbolicLink())
{
char buffer[512];
fd->ReadLink(buffer, sizeof(buffer));
fd = fs->GetByPath(buffer, fd->Parent);
if (fd == nullptr)
return -ENOENT;
}
else
return -ENOEXEC;
}
switch (GetBinaryType(Path))
switch (GetBinaryType(fd))
{
case BinaryType::BinTypeELF:
{