15d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 25d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// found in the LICENSE file. 45d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 55d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "nacl_io/node.h" 65d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 75d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <assert.h> 85d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <errno.h> 95d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <fcntl.h> 105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <poll.h> 115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <string.h> 125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <sys/stat.h> 135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <algorithm> 155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <string> 165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "nacl_io/filesystem.h" 185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "nacl_io/kernel_handle.h" 195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "nacl_io/kernel_wrap_real.h" 205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "nacl_io/osmman.h" 215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "sdk_util/auto_lock.h" 225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)namespace nacl_io { 245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)static const int USR_ID = 1001; 265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)static const int GRP_ID = 1002; 275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Node::Node(Filesystem* filesystem) : filesystem_(filesystem) { 295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) memset(&stat_, 0, sizeof(stat_)); 305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) stat_.st_gid = GRP_ID; 315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) stat_.st_uid = USR_ID; 325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) stat_.st_mode = S_IRALL | S_IWALL; 335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Filesystem should normally never be NULL, but may be null in tests. 355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // If NULL, at least set the inode to a valid (nonzero) value. 365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (filesystem_) 375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) filesystem_->OnNodeCreated(this); 385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) else 395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) stat_.st_ino = 1; 405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 4246d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Node::~Node() { 4346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 4546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Error Node::Init(int open_flags) { 4646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return 0; 4746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void Node::Destroy() { 505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (filesystem_) { 515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) filesystem_->OnNodeDestroyed(this); 525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 5546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)EventEmitter* Node::GetEventEmitter() { 5646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return NULL; 5746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)uint32_t Node::GetEventStatus() { 605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (GetEventEmitter()) 615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return GetEventEmitter()->GetEventStatus(); 625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return POLLIN | POLLOUT; 645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)bool Node::CanOpen(int open_flags) { 675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) switch (open_flags & 3) { 685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) case O_RDONLY: 695d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return (stat_.st_mode & S_IRALL) != 0; 705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) case O_WRONLY: 715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return (stat_.st_mode & S_IWALL) != 0; 725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) case O_RDWR: 735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return (stat_.st_mode & S_IRALL) != 0 && (stat_.st_mode & S_IWALL) != 0; 745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return false; 775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Error Node::FSync() { 8046d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return 0; 8146d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 8346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Error Node::FTruncate(off_t length) { 8446d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return EINVAL; 8546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::GetDents(size_t offs, 885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) struct dirent* pdir, 895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) size_t count, 905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int* out_bytes) { 915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) *out_bytes = 0; 925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return ENOTDIR; 935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::GetStat(struct stat* pstat) { 965d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) AUTO_LOCK(node_lock_); 975d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) memcpy(pstat, &stat_, sizeof(stat_)); 985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return 0; 995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::Ioctl(int request, ...) { 1025d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) va_list ap; 1035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) va_start(ap, request); 1045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Error rtn = VIoctl(request, ap); 1055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) va_end(ap); 1065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return rtn; 1075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 10946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Error Node::VIoctl(int request, va_list args) { 11046d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return EINVAL; 11146d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 1125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::Read(const HandleAttr& attr, 1145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) void* buf, 1155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) size_t count, 1165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int* out_bytes) { 1175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) *out_bytes = 0; 1185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return EINVAL; 1195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::Write(const HandleAttr& attr, 1225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const void* buf, 1235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) size_t count, 1245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int* out_bytes) { 1255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) *out_bytes = 0; 1265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return EINVAL; 1275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::MMap(void* addr, 1305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) size_t length, 1315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int prot, 1325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int flags, 1335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) size_t offset, 1345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) void** out_addr) { 1355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) *out_addr = NULL; 1365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Never allow mmap'ing PROT_EXEC. The passthrough node supports this, but we 1385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // don't. Fortunately, glibc will fallback if this fails, so dlopen will 1395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // continue to work. 1405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (prot & PROT_EXEC) 1415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return EPERM; 1425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // This default mmap support is just enough to make dlopen work. This 1445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // implementation just reads from the filesystem into the mmap'd memory area. 1455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) void* new_addr = addr; 1465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int mmap_error = _real_mmap( 1475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &new_addr, length, prot | PROT_WRITE, flags | MAP_ANONYMOUS, -1, 0); 1485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (new_addr == MAP_FAILED) { 1495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) _real_munmap(new_addr, length); 1505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return mmap_error; 1515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HandleAttr data; 1545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) data.offs = offset; 1555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) data.flags = 0; 1565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int bytes_read; 1575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Error read_error = Read(data, new_addr, length, &bytes_read); 1585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (read_error) { 1595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) _real_munmap(new_addr, length); 1605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return read_error; 1615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) *out_addr = new_addr; 1645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return 0; 1655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 16746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Error Node::Tcflush(int queue_selector) { 16846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return EINVAL; 16946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 1705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 17146d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Error Node::Tcgetattr(struct termios* termios_p) { 17246d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return EINVAL; 17346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 1745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::Tcsetattr(int optional_actions, const struct termios* termios_p) { 1765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return EINVAL; 1775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1791320f92c476a1ad9d19dba2a48c72b75566198e9Primiano TucciError Node::Futimens(const struct timespec times[2]) { 1801320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci return 0; 1811320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci} 1821320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 1831320f92c476a1ad9d19dba2a48c72b75566198e9Primiano TucciError Node::Fchmod(mode_t mode) { 1841320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci return EINVAL; 1851320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci} 1861320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 18746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)int Node::GetLinks() { 18846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return stat_.st_nlink; 18946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 1905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 19146d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)int Node::GetMode() { 19246d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return stat_.st_mode & ~S_IFMT; 19346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 1945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 195010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)Error Node::GetSize(off_t* out_size) { 1965d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) *out_size = stat_.st_size; 1975d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return 0; 1985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 20046d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)int Node::GetType() { 20146d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return stat_.st_mode & S_IFMT; 20246d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void Node::SetType(int type) { 2055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) assert((type & ~S_IFMT) == 0); 2065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) stat_.st_mode &= ~S_IFMT; 2075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) stat_.st_mode |= type; 2085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2101320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tuccivoid Node::SetMode(int mode) { 2111320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci assert((mode & S_IFMT) == 0); 2121320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci stat_.st_mode &= S_IFMT; 2131320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci stat_.st_mode |= mode; 2141320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci} 2151320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 21646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)bool Node::IsaDir() { 217f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return GetType() == S_IFDIR; 21846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 22046d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)bool Node::IsaFile() { 221f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return GetType() == S_IFREG; 22246d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 22446d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)bool Node::IsaSock() { 225f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return GetType() == S_IFSOCK; 22646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 228effb81e5f8246d0db0270817048dc992db66e9fbBen MurdochError Node::Isatty() { 229effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch return ENOTTY; 230effb81e5f8246d0db0270817048dc992db66e9fbBen Murdoch} 2315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::AddChild(const std::string& name, const ScopedNode& node) { 2335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return ENOTDIR; 2345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 23646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)Error Node::RemoveChild(const std::string& name) { 23746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return ENOTDIR; 23846d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)Error Node::FindChild(const std::string& name, ScopedNode* out_node) { 2415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) out_node->reset(NULL); 2425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return ENOTDIR; 2435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 24546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)int Node::ChildCount() { 24646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) return 0; 24746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 24946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)void Node::Link() { 25046d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) stat_.st_nlink++; 25146d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 25346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)void Node::Unlink() { 25446d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) stat_.st_nlink--; 25546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)} 2565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} // namespace nacl_io 258