Age | Commit message (Collapse) | Author |
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Updates #1197, #1198, #1672
PiperOrigin-RevId: 310432006
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PiperOrigin-RevId: 308472331
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PiperOrigin-RevId: 308170679
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Ensure we use the correct architecture-specific defintion of epoll
event, and use go-marshal for serialization.
PiperOrigin-RevId: 308145677
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PiperOrigin-RevId: 307941984
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This feature will match UID and GID of the packet creator, for locally
generated packets. This match is only valid in the OUTPUT and POSTROUTING
chains. Forwarded packets do not have any socket associated with them.
Packets from kernel threads do have a socket, but usually no owner.
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Updates #1035
PiperOrigin-RevId: 303021328
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PiperOrigin-RevId: 301197007
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- When setting up the virtual filesystem, mount a host.filesystem to contain
all files that need to be imported.
- Make read/preadv syscalls to the host in cases where preadv2 may not be
supported yet (likewise for writing).
- Make save/restore functions in kernel/kernel.go return early if vfs2 is
enabled.
PiperOrigin-RevId: 300922353
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PiperOrigin-RevId: 300362789
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Linux use the task.thread.uw.tp_value field to store the
TLS pointer on arm64 platform, and we use a similar way
in gvisor to store it in the arch/State struct.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: Ie76b5c6d109bc27ccfd594008a96753806db7764
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Enables commands such as:
$ iptables -A INPUT -d 127.0.0.1 -j ACCEPT
$ iptables -t nat -A PREROUTING ! -d 127.0.0.1 -j REDIRECT
Also adds a bunch of REDIRECT+destination tests.
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- commit the changes for the comments.
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pipe and pipe2 aren't ported, pending a slight rework of pipe FDs for VFS2.
mount and umount2 aren't ported out of temporary laziness. access and faccessat
need additional FSImpl methods to implement properly, but are stubbed to
prevent googletest from CHECK-failing. Other syscalls require additional
plumbing.
Updates #1623
PiperOrigin-RevId: 297188448
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PiperOrigin-RevId: 296526279
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Example:
epoll_ctl(0x3 anon_inode:[eventpoll], EPOLL_CTL_ADD, 0x6 anon_inode:[eventfd], 0x7efe2fd92a80 {events=EPOLLIN|EPOLLOUT data=0x10203040506070a}) = 0x0 (4.411µs)
epoll_wait(0x3 anon_inode:[eventpoll], 0x7efe2fd92b50 {{events=EPOLLOUT data=0x102030405060708}{events=EPOLLOUT data=0x102030405060708}{events=EPOLLOUT data=0x102030405060708}}, 0x3, 0xffffffff) = 0x3 (29.891µs)
PiperOrigin-RevId: 296258146
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PiperOrigin-RevId: 295785052
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Add nat table support for Prerouting hook with Redirect option.
Add tests to check redirect of ports.
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glibc defines struct epoll_event in such a way that epoll_event.data.fd exists.
However, the kernel's definition of struct epoll_event makes epoll_event.data
an opaque uint64, so naming half of it "fd" just introduces confusion. Remove
the Fd field, and make Data a [2]int32 to compensate.
Also add required padding to linux.EpollEvent on ARM64.
PiperOrigin-RevId: 295250424
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This requires fixing a few build issues for non-am64 platforms.
PiperOrigin-RevId: 295196922
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- Add missing build tags to files in the abi package.
- Add the marshal package as a sentry dependency, allowed by deps_test.
- Fix an issue with our top-level go_library BUILD rule, which
incorrectly shadows the variable containing the input set of source
files. This caused the expansion for the go_marshal clause to
silently omit input files.
- Fix formatting when copying build tags to gomarshal-generated files.
- Fix a bug with import statement collision detection in go-marshal.
PiperOrigin-RevId: 295112284
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$ iptables -N foochain
$ iptables -A INPUT -j foochain
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PiperOrigin-RevId: 294952610
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PiperOrigin-RevId: 294340468
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PiperOrigin-RevId: 293243342
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A couple other things that changed:
- There's a proper extension registration system for matchers. Anyone
adding another matcher can use tcp_matcher.go or udp_matcher.go as a
template.
- All logging and use of syserr.Error in the netfilter package happens at the
highest possible level (public functions). Lower-level functions just
return normal, descriptive golang errors.
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PiperOrigin-RevId: 292165063
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PiperOrigin-RevId: 291997879
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Test command:
$ ip route get 1.1.1.1
Fixes: #1099
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/1121 from tanjianfeng:fix-1099 e6919f3d4ede5aa51a48b3d2be0d7a4b482dd53d
PiperOrigin-RevId: 291990716
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Because the abi will depend on the core types for marshalling (usermem,
context, safemem, safecopy), these need to be flattened from the sentry
directory. These packages contain no sentry-specific details.
PiperOrigin-RevId: 291811289
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PiperOrigin-RevId: 291745021
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The iptables binary is looking for libxt_.so when it should be looking
for libxt_udp.so, so it's having an issue reading the data in
xt_match_entry. I think it may be an alignment issue.
Trying to fix this is leading to me fighting with the metadata struct,
so I'm gonna go kill that.
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PiperOrigin-RevId: 290840484
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PiperOrigin-RevId: 290822487
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PiperOrigin-RevId: 290821997
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PiperOrigin-RevId: 289962040
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This gets us closer to passing the iptables tests and opens up iptables
so it can be worked on by multiple people.
A few restrictions are enforced for security (i.e. we don't want to let
users write a bunch of iptables rules and then just not enforce them):
- Only the filter table is writable.
- Only ACCEPT rules with no matching criteria can be added.
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PiperOrigin-RevId: 288342928
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Some of the flags in the file system related system call
are architecture specific(O_NOFOLLOW/O_DIRECT..). Ref to
the fcntl.h file in the Linux src codes.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: I354d988073bfd0c9ff5371d4e0be9da2b8fd019f
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Add checks for input arguments, file type, permissions, etc. that match
the Linux implementation. A call to get/setxattr that passes all the
checks will still currently return EOPNOTSUPP. Actual support will be
added in following commits.
Only allow user.* extended attributes for the time being.
PiperOrigin-RevId: 285835159
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