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Kernel: Pass a parameter struct to symlink()
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parent
c97bfbd609
commit
46830a0c32
4 changed files with 23 additions and 8 deletions
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@ -2587,14 +2587,19 @@ int Process::sys$unlink(const char* user_path, size_t path_length)
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return VFS::the().unlink(path.value(), current_directory());
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}
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int Process::sys$symlink(const char* target, const char* linkpath)
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int Process::sys$symlink(const Syscall::SC_symlink_params* user_params)
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{
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SmapDisabler disabler;
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if (!validate_read_str(target))
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if (!validate_read_typed(user_params))
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return -EFAULT;
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if (!validate_read_str(linkpath))
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return -EFAULT;
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return VFS::the().symlink(StringView(target), StringView(linkpath), current_directory());
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Syscall::SC_symlink_params params;
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copy_from_user(¶ms, user_params);
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auto target = get_syscall_path_argument(params.target.characters, params.target.length);
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if (target.is_error())
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return target.error();
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auto linkpath = get_syscall_path_argument(params.linkpath.characters, params.linkpath.length);
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if (linkpath.is_error())
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return linkpath.error();
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return VFS::the().symlink(target.value(), linkpath.value(), current_directory());
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}
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KResultOr<String> Process::get_syscall_path_argument(const char* user_path, size_t path_length)
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@ -177,7 +177,7 @@ public:
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int sys$utime(const char* pathname, size_t path_length, const struct utimbuf*);
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int sys$link(const Syscall::SC_link_params*);
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int sys$unlink(const char* pathname, size_t path_length);
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int sys$symlink(const char* target, const char* linkpath);
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int sys$symlink(const Syscall::SC_symlink_params*);
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int sys$rmdir(const char* pathname, size_t path_length);
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int sys$mount(const char* device, const char* mountpoint, const char* fstype);
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int sys$umount(const char* mountpoint, size_t mountpoint_length);
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@ -345,6 +345,11 @@ struct SC_mknod_params {
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u32 dev;
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};
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struct SC_symlink_params {
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StringArgument target;
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StringArgument linkpath;
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};
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void initialize();
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int sync();
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@ -361,7 +361,12 @@ int unlink(const char* pathname)
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int symlink(const char* target, const char* linkpath)
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{
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int rc = syscall(SC_symlink, target, linkpath);
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if (!target || !linkpath) {
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errno = EFAULT;
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return -1;
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}
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Syscall::SC_symlink_params params { { target, strlen(target) }, { linkpath, strlen(linkpath) } };
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int rc = syscall(SC_symlink, ¶ms);
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__RETURN_WITH_ERRNO(rc, rc, -1);
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}
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