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2020-07-10Merge release-20200622.1-89-g5df3a8fed (automated)gVisor bot
2020-07-09Discard multicast UDP source address.gVisor bot
RFC-1122 (and others) specify that UDP should not receive datagrams that have a source address that is a multicast address. Packets should never be received FROM a multicast address. See also, RFC 768: 'User Datagram Protocol' J. Postel, ISI, 28 August 1980 A UDP datagram received with an invalid IP source address (e.g., a broadcast or multicast address) must be discarded by UDP or by the IP layer (see rfc 1122 Section 3.2.1.3). This CL does not address TCP or broadcast which is more complicated. Also adds a test for both ipv6 and ipv4 UDP. Fixes #3154 PiperOrigin-RevId: 320547674
2020-07-09Merge release-20200622.1-88-g5946f1118 (automated)gVisor bot
2020-07-09Add support for IP_HDRINCL IP option for raw sockets.Bhasker Hariharan
Updates #2746 Fixes #3158 PiperOrigin-RevId: 320497190
2020-07-09Merge release-20200622.1-85-gc4815af94 (automated)gVisor bot
2020-07-08Add shared mount hints to VFS2Fabricio Voznika
Container restart test is disabled for VFS2 for now. Updates #1487 PiperOrigin-RevId: 320296401
2020-07-08Merge release-20200622.1-81-gf3fa43cf2 (automated)gVisor bot
2020-07-08Merge release-20200622.1-80-ge1f11dea2 (automated)gVisor bot
2020-07-08Merge release-20200622.1-78-gefa2615eb (automated)gVisor bot
2020-07-07[vfs2] Remove VFS1 usage in VDSO.Ayush Ranjan
Removed VDSO dependency on VFS1. Resolves #2921 PiperOrigin-RevId: 320122176
2020-07-07Merge release-20200622.1-74-g10930189c (automated)gVisor bot
2020-07-07Fix mknod and inotify syscall testAyush Ranjan
This change fixes a few things: - creating sockets using mknod(2) is supported via vfs2 - fsgofer can create regular files via mknod(2) - mode = 0 for mknod(2) will be interpreted as regular file in vfs2 as well Updates #2923 PiperOrigin-RevId: 320074267
2020-07-07Merge release-20200622.1-71-ge227450dc (automated)gVisor bot
2020-07-06Call fdnotifier.UpdateFD() from fsimpl/gofer.specialFileFD.Jamie Liu
The fdnotifier package provides an API to a thread that continually epolls arbitrary host FDs. The set of events polled for each host FD is (intended to be) all events for which a waiter.Entry has expressed interest, as returned by waiter.Queue.Events() for the waiter.Queue registered to the given host FD. When the set of events changes (due to a change in the set of registered waiter.Entries), the mutator must call fdnotifier.UpdateFD() to recalculate the new event set and propagate it to the epoll FD. PiperOrigin-RevId: 319924719
2020-07-07Merge release-20200622.1-70-g937912a48 (automated)gVisor bot
2020-07-06Ensure sync is called for readonly fileFabricio Voznika
Calling sync on a readonly file flushes metadata that may have been modified, like last access time. Updates #1198 PiperOrigin-RevId: 319888290
2020-07-06Merge release-20200622.1-67-gbd43368f4 (automated)gVisor bot
2020-07-06Add inode number to synthetic dentriesFabricio Voznika
Reserve the MSB from ino for synthetic dentries to prevent conflict with regular dentries. Log warning in case MSB is set for regular dentries. Updates #1487 PiperOrigin-RevId: 319869858
2020-07-02Merge release-20200622.1-59-g6c099d830 (automated)gVisor bot
2020-07-01Update preadv2/pwritev2 flag handling in vfs2.Dean Deng
We do not support RWF_SYNC/RWF_DSYNC and probably shouldn't silently accept them, since the user may incorrectly believe that we are synchronizing I/O. Remove the pwritev2 test verifying that we support these flags. gvisor.dev/issue/2601 is the tracking bug for deciding which RWF_.* flags we need and supporting them. Updates #2923, #2601. PiperOrigin-RevId: 319351286
2020-07-02Merge release-20200622.1-58-g514955c1a (automated)gVisor bot
2020-07-01[vfs2][gofer] Fix mmap syscall test.Ayush Ranjan
We were not invalidating mappings when the file size changed in shared mode. Enabled the syscall test for vfs2. Updates #2923 PiperOrigin-RevId: 319346569
2020-07-02Merge release-20200622.1-57-g52b44719d (automated)gVisor bot
2020-07-01[vfs2][gofer] Update file size to 0 on O_TRUNCAyush Ranjan
Some Open:TruncateXxx syscall tests were failing because the file size was not being updated when the file was opened with O_TRUNC. Fixes Truncate tests in test/syscalls:open_test_runsc_ptrace_vfs2. Updates #2923 PiperOrigin-RevId: 319340127
2020-07-02Merge release-20200622.1-56-g3b26d2121 (automated)gVisor bot
2020-07-01Remove maxSendBufferSize from vfs2.Dean Deng
Complements cl/315991648. PiperOrigin-RevId: 319327853
2020-07-02Merge release-20200622.1-55-g65d998555 (automated)gVisor bot
2020-07-01Port vfs1 implementation of sync_file_range to vfs2.Dean Deng
Currently, we always perform a full-file sync which could be extremely expensive for some applications. Although vfs1 did not fully support sync_file_range, there were some optimizations that allowed us skip some unnecessary write-outs. Updates #2923, #1897. PiperOrigin-RevId: 319324213
2020-07-01Merge release-20200622.1-52-g6a90c88b9 (automated)gVisor bot
2020-07-01Port fallocate to VFS2.Zach Koopmans
PiperOrigin-RevId: 319283715
2020-07-01Merge release-20200622.1-49-gcda2979b6 (automated)gVisor bot
2020-07-01Complete async signal delivery support in vfs2.Dean Deng
- Support FIOASYNC, FIO{SET,GET}OWN, SIOC{G,S}PGRP (refactor getting/setting owner in the process). - Unset signal recipient when setting owner with pid == 0 and valid owner type. Updates #2923. PiperOrigin-RevId: 319231420
2020-07-01Merge release-20200622.1-46-g43f5dd95a (automated)gVisor bot
2020-06-30Fix index calculation for /proc/[pid]/cmdline.Dean Deng
We were truncating buf using a index relative to the middle of the slice (i.e. where envv begins), but we need to calculate the index relative to the entire slice. Updates #2923. PiperOrigin-RevId: 319154950
2020-07-01Merge release-20200622.1-45-g20d571b0c (automated)gVisor bot
2020-06-30Allow O_DIRECT on vfs2 tmpfs files.Dean Deng
Updates #2923. PiperOrigin-RevId: 319153792
2020-07-01Merge release-20200622.1-44-gc4bdd0118 (automated)gVisor bot
2020-06-30Add missing newline in /sys/devices/systen/cpu/onineBhasker Hariharan
PiperOrigin-RevId: 319143410
2020-06-28Merge release-20200622.1-39-ge8f1a5c1f (automated)gVisor bot
2020-06-27Port GETOWN, SETOWN fcntls to vfs2.Dean Deng
Also make some fixes to vfs1's F_SETOWN. The fcntl test now entirely passes on vfs2. Fixes #2920. PiperOrigin-RevId: 318669529
2020-06-27Merge release-20200622.1-38-g02d552d07 (automated)gVisor bot
2020-06-27Support sticky bit in vfs2.Dean Deng
Updates #2923. PiperOrigin-RevId: 318648128
2020-06-27Add documentation for vfs2 inotify.Dean Deng
Updates #1479. PiperOrigin-RevId: 318631247
2020-06-27Merge release-20200622.1-33-g8dbeac53c (automated)gVisor bot
2020-06-26Implement SO_NO_CHECK socket option.gVisor bot
SO_NO_CHECK is used to skip the UDP checksum generation on a TX socket (UDP checksum is optional on IPv4). Test: - TestNoChecksum - SoNoCheckOffByDefault (UdpSocketTest) - SoNoCheck (UdpSocketTest) Fixes #3055 PiperOrigin-RevId: 318575215
2020-06-26Merge release-20200622.1-31-g9cfc15497 (automated)gVisor bot
2020-06-26Require CAP_SYS_ADMIN in the root user namespace for TTY theftKevin Krakauer
PiperOrigin-RevId: 318563543
2020-06-26Merge release-20200622.1-29-g54a31e219 (automated)gVisor bot
2020-06-26Support inotify IN_ONESHOT.Dean Deng
Also, while we're here, make sure that gofer inotify events are generated when files are created in remote revalidating mode. Updates #1479. PiperOrigin-RevId: 318536354
2020-06-26Merge release-20200622.1-28-gcfd049da8 (automated)gVisor bot