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2020-08-24Merge release-20200818.0-33-gab6c47421 (automated)gVisor bot
2020-08-24Bump build constraints to 1.17Michael Pratt
This enables pre-release testing with 1.16. The intention is to replace these with a nogo check before the next release. PiperOrigin-RevId: 328193911
2020-08-24Merge release-20200818.0-32-g339d266be (automated)gVisor bot
2020-08-24Consider loopback bound to all addresses in subnetGhanan Gowripalan
When a loopback interface is configurd with an address and associated subnet, the loopback should treat all addresses in that subnet as an address it owns. This is mimicking linux behaviour as seen below: ``` $ ip addr show dev lo 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group ... link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever $ ping 192.0.2.1 PING 192.0.2.1 (192.0.2.1) 56(84) bytes of data. ^C --- 192.0.2.1 ping statistics --- 2 packets transmitted, 0 received, 100% packet loss, time 1018ms $ ping 192.0.2.2 PING 192.0.2.2 (192.0.2.2) 56(84) bytes of data. ^C --- 192.0.2.2 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2039ms $ sudo ip addr add 192.0.2.1/24 dev lo $ ip addr show dev lo 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group ... link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet 192.0.2.1/24 scope global lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever $ ping 192.0.2.1 PING 192.0.2.1 (192.0.2.1) 56(84) bytes of data. 64 bytes from 192.0.2.1: icmp_seq=1 ttl=64 time=0.131 ms 64 bytes from 192.0.2.1: icmp_seq=2 ttl=64 time=0.046 ms 64 bytes from 192.0.2.1: icmp_seq=3 ttl=64 time=0.048 ms ^C --- 192.0.2.1 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2042ms rtt min/avg/max/mdev = 0.046/0.075/0.131/0.039 ms $ ping 192.0.2.2 PING 192.0.2.2 (192.0.2.2) 56(84) bytes of data. 64 bytes from 192.0.2.2: icmp_seq=1 ttl=64 time=0.131 ms 64 bytes from 192.0.2.2: icmp_seq=2 ttl=64 time=0.069 ms 64 bytes from 192.0.2.2: icmp_seq=3 ttl=64 time=0.049 ms 64 bytes from 192.0.2.2: icmp_seq=4 ttl=64 time=0.035 ms ^C --- 192.0.2.2 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3049ms rtt min/avg/max/mdev = 0.035/0.071/0.131/0.036 ms ``` Test: integration_test.TestLoopbackAcceptAllInSubnet PiperOrigin-RevId: 328188546
2020-08-24Merge release-20200810.0-94-gbae25d2a0 (automated)gVisor bot
2020-08-24Update inotify documentation for gofer filesystem.Dean Deng
We now allow hard links to be created within gofer fs (see github.com/google/gvisor/commit/f20e63e31b56784c596897e86f03441f9d05f567). Update the inotify documentation accordingly. PiperOrigin-RevId: 328177485
2020-08-24Merge release-20200810.0-93-g89791a79b (automated)gVisor bot
2020-08-22Merge release-20200810.0-92-ge7270096a (automated)gVisor bot
2020-08-22Implement GetFilesystem for verity fsgVisor bot
verity GetFilesystem is implemented by mounting the underlying file system, save the mount, and store both the underlying root dentry and root Merkle file dentry in verity's root dentry. PiperOrigin-RevId: 327959334
2020-08-22Merge release-20200810.0-91-g69008b68b (automated)gVisor bot
2020-08-22Merge release-20200810.0-90-g17bc5c1b0 (automated)gVisor bot
2020-08-21[vfs] Allow mountpoint to be an existing non-directory.Ayush Ranjan
Unlike linux mount(2), OCI spec allows mounting on top of an existing non-directory file. PiperOrigin-RevId: 327914342
2020-08-22Merge release-20200810.0-89-g9607515ae (automated)gVisor bot
2020-08-21stateify: Fix pretty print not printing odd numbered fields.Ting-Yu Wang
PiperOrigin-RevId: 327902182
2020-08-22Merge release-20200810.0-88-g46d11a767 (automated)gVisor bot
2020-08-21Provide fdReader/Writer for FileDescriptiongVisor bot
fdReader/Writer implements io.Reader/Writer so that they can be passed to Merkle tree library. PiperOrigin-RevId: 327901376
2020-08-21Merge release-20200810.0-87-gbd3383a7e (automated)gVisor bot
2020-08-21Merge release-20200810.0-86-g23070b2e5 (automated)gVisor bot
2020-08-21Internal change.gVisor bot
PiperOrigin-RevId: 327892274
2020-08-21Merge release-20200810.0-85-g0ea03f501 (automated)gVisor bot
2020-08-21Clarify seek behaviour for kernfs.GenericDirectoryFD.Rahat Mahmood
- Remove comment about GenericDirectoryFD not being compatible with dynamic directories. It is currently being used to implement dynamic directories. - Try to handle SEEK_END better than setting the offset to infinity. SEEK_END is poorly defined for dynamic directories anyways, so at least try make it work correctly for the static entries. Updates #1193. PiperOrigin-RevId: 327890128
2020-08-21Merge release-20200810.0-84-g5f33fdf37 (automated)gVisor bot
2020-08-21Pass overlay credentials via context in copy up.Nicolas Lacasse
Some VFS operations (those which operate on FDs) get their credentials via the context instead of via an explicit creds param. For these cases, we must pass the overlay credentials on the context. PiperOrigin-RevId: 327881259
2020-08-21Merge release-20200810.0-83-g5ec3d4ed3 (automated)gVisor bot
2020-08-21Make mounts ReadWrite first, then later change to ReadOnly.Nicolas Lacasse
This lets us create "synthetic" mountpoint directories in ReadOnly mounts during VFS setup. Also add context.WithMountNamespace, as some filesystems (like overlay) require a MountNamespace on ctx to handle vfs.Filesystem Operations. PiperOrigin-RevId: 327874971
2020-08-21Merge release-20200810.0-82-gc9e752b64 (automated)gVisor bot
2020-08-21Merge release-20200810.0-81-g2c422b7f2 (automated)gVisor bot
2020-08-21Fix parent directory creation in CreateDeviceFile.Nicolas Lacasse
It was not properly creating recursive directories. Added tests for this case. Updates #1196 PiperOrigin-RevId: 327850811
2020-08-21Merge release-20200810.0-80-gc24db90be (automated)gVisor bot
2020-08-21Merge release-20200810.0-79-g0324b94a7 (automated)gVisor bot
2020-08-20Merge release-20200810.0-78-g73c69cb4d (automated)gVisor bot
2020-08-20[vfs] Create recursive dir creation util.Ayush Ranjan
Refactored the recursive dir creation util in runsc/boot/vfs.go to be more flexible. PiperOrigin-RevId: 327719100
2020-08-20Merge release-20200810.0-77-ge8a25a283 (automated)gVisor bot
2020-08-20Merge release-20200810.0-76-gdf4822709 (automated)gVisor bot
2020-08-20stateify: Fix afterLoad not being called for root objectTing-Yu Wang
PiperOrigin-RevId: 327711264
2020-08-20Merge release-20200810.0-75-g3163aff86 (automated)gVisor bot
2020-08-20Add reference count checking to the fsimpl/host package.Dean Deng
Includes a minor refactor for inode construction. Updates #1486. PiperOrigin-RevId: 327694933
2020-08-20Merge release-20200810.0-74-g129018ab3 (automated)gVisor bot
2020-08-20Consistent precondition formattingMichael Pratt
Our "Preconditions:" blocks are very useful to determine the input invariants, but they are bit inconsistent throughout the codebase, which makes them harder to read (particularly cases with 5+ conditions in a single paragraph). I've reformatted all of the cases to fit in simple rules: 1. Cases with a single condition are placed on a single line. 2. Cases with multiple conditions are placed in a bulleted list. This format has been added to the style guide. I've also mentioned "Postconditions:", though those are much less frequently used, and all uses already match this style. PiperOrigin-RevId: 327687465
2020-08-20Merge release-20200810.0-73-gf12b545d8 (automated)gVisor bot
2020-08-20Skip listening TCP ports when trying to bind a free port.Bhasker Hariharan
PiperOrigin-RevId: 327686558
2020-08-20Merge release-20200810.0-72-g7ca62b9da (automated)gVisor bot
2020-08-20Only use the NextHeader value of the first IPv6 fragment extension header.Arthur Sfez
As per RFC 8200 Section 4.5: The Next Header field of the last header of the Per-Fragment headers is obtained from the Next Header field of the first fragment's Fragment header. Test: - pkg/tcpip/network/ipv6:ipv6_test - pkg/tcpip/network/ipv4:ipv4_test - pkg/tcpip/network/fragmentation:fragmentation_test Updates #2197 PiperOrigin-RevId: 327671635
2020-08-20Merge release-20200810.0-71-g710adf23c (automated)gVisor bot
2020-08-20Use a explicit random src for RandomID.Bhasker Hariharan
PiperOrigin-RevId: 327659759
2020-08-20Merge release-20200810.0-70-gd2e32395c (automated)gVisor bot
2020-08-20Fix tabs in lock-ordering doc.Nicolas Lacasse
PiperOrigin-RevId: 327654207
2020-08-20Merge release-20200810.0-69-gbe76c7ce6 (automated)gVisor bot
2020-08-19Move boot.Config to its own packageFabricio Voznika
Updates #3494 PiperOrigin-RevId: 327548511
2020-08-20Merge release-20200810.0-68-g633570462 (automated)gVisor bot
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