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path: root/pkg/sentry/socket/rpcinet
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2018-06-22Add rpcinet support for SIOCGIFCONF.Brian Geffon
The interfaces and their addresses are already available via the stack Intefaces and InterfaceAddrs. Also add some tests as we had no tests around SIOCGIFCONF. I also added the socket_netgofer lifecycle for IOCTL tests. PiperOrigin-RevId: 201744863 Change-Id: Ie0a285a2a2f859fa0cafada13201d5941b95499a
2018-06-19Rpcinet is racy around shutdown flags.Brian Geffon
Correct a data race in rpcinet where a shutdown and recvmsg can race around shutown flags. PiperOrigin-RevId: 201238366 Change-Id: I5eb06df4a2b4eba331eeb5de19076213081d581f
2018-06-19Rpcinet needs to track shutdown state for blocking sockets.Brian Geffon
Because rpcinet will emulate a blocking socket backed by an rpc based non-blocking socket. In the event of a shutdown(SHUT_RD) followed by a read a non-blocking socket is allowed to return an EWOULDBLOCK however since a blocking socket knows it cannot receive anymore data it would block indefinitely and in this situation linux returns 0. We have to track this on the rpcinet sentry side so we can emulate that behavior because the remote side has no way to know if the socket is actually blocking within the sentry. PiperOrigin-RevId: 201201618 Change-Id: I4ac3a7b74b5dae471ab97c2e7d33b83f425aedac
2018-06-17Add rpcinet support for control messages.Brian Geffon
Add support for control messages, but at this time the only control message that the sentry will support here is SO_TIMESTAMP. PiperOrigin-RevId: 200922230 Change-Id: I63a852d9305255625d9df1d989bd46a66e93c446
2018-06-13Fix missing returns in rpcinet.Brian Geffon
PiperOrigin-RevId: 200472634 Change-Id: I3f0fb9e3b2f8616e6aa1569188258f330bf1ed31
2018-06-12Rpcinet doensn't handle SO_RCVTIMEO properly.Brian Geffon
Rpcinet already inherits socket.ReceiveTimeout; however, it's never set on setsockopt(2). The value is currently forwarded as an RPC and ignored as all sockets will be non-blocking on the RPC side. PiperOrigin-RevId: 200299260 Change-Id: I6c610ea22c808ff6420c63759dccfaeab17959dd
2018-06-11Rpcinet is incorrectly handling MSG_TRUNC with SOCK_STREAMBrian Geffon
SOCK_STREAM has special behavior with respect to MSG_TRUNC. Specifically, the data isn't actually copied back out to userspace when MSG_TRUNC is provided on a SOCK_STREAM. According to tcp(7): "Since version 2.4, Linux supports the use of MSG_TRUNC in the flags argument of recv(2) (and recvmsg(2)). This flag causes the received bytes of data to be discarded, rather than passed back in a caller-supplied buffer." PiperOrigin-RevId: 200134860 Change-Id: I70f17a5f60ffe7794c3f0cfafd131c069202e90d
2018-06-11rpcinet is treating EAGAIN and EWOULDBLOCK as different errnos.Brian Geffon
PiperOrigin-RevId: 200124614 Change-Id: I38a7b083f1464a2a586fe24db648e624c455fec5
2018-06-08Add checks for short CopyOut in rpcinetBrian Geffon
PiperOrigin-RevId: 199864753 Change-Id: Ibace6a1fdf99ee6ce368ac12c390aa8a02dbdfb7
2018-06-08rpcinet is not correctly handling MSG_TRUNC on recvmsg(2).Brian Geffon
MSG_TRUNC can cause recvmsg(2) to return a value larger than the buffer size. In this situation it's an indication that the buffer was completely filled and that the msg was truncated. Previously in rpcinet we were returning the buffer size but we should actually be returning the payload length as returned by the syscall. PiperOrigin-RevId: 199814221 Change-Id: If09aa364219c1bf193603896fcc0dc5c55e85d21
2018-06-07rpcinet should not block in read(2) rpcs.Brian Geffon
PiperOrigin-RevId: 199703609 Change-Id: I8153b0396b22a230a68d4b69c46652a5545f7630
2018-06-07Add missing rpcinet ioctls.Brian Geffon
PiperOrigin-RevId: 199669120 Change-Id: I0be88cdbba29760f967e9a5bb4144ca62c1ed7aa
2018-06-06Add support for rpcinet ioctl(2).Brian Geffon
This change will add support for ioctls that have previously been supported by netstack. LINE_LENGTH_IGNORE PiperOrigin-RevId: 199544114 Change-Id: I3769202c19502c3b7d05e06ea9552acfd9255893
2018-06-05Add support for rpcinet owned procfs files.Brian Geffon
This change will add support for /proc/sys/net and /proc/net which will be managed and owned by rpcinet. This will allow these inodes to be forward as rpcs. PiperOrigin-RevId: 199370799 Change-Id: I2c876005d98fe55dd126145163bee5a645458ce4
2018-06-01Fix refcount bug in rpcinet socketOperations.Accept.Brian Geffon
PiperOrigin-RevId: 198931222 Change-Id: I69ee12318e87b9a6a4a94b18a9bf0ae4e39d7eaf
2018-05-24rpcinet connect doesn't handle all errnos correctly.Brian Geffon
These were causing non-blocking related errnos to be returned to the sentry when they were created as blocking FDs internally. PiperOrigin-RevId: 197962932 Change-Id: I3f843535ff87ebf4cb5827e9f3d26abfb79461b0
2018-05-16Fix another socket Dirent refcount.Christopher Koch
PiperOrigin-RevId: 196893452 Change-Id: I5ea0f851fcabc5eac5859e61f15213323d996337
2018-05-03Fix misspellings.Cyrille Hemidy
PiperOrigin-RevId: 195307689 Change-Id: I499f19af49875a43214797d63376f20ae788d2f4
2018-05-01Implement SO_TIMESTAMPIan Gudger
PiperOrigin-RevId: 195047018 Change-Id: I6d99528a00a2125f414e1e51e067205289ec9d3d
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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