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authorGhanan Gowripalan <ghanan@google.com>2021-09-09 17:07:37 -0700
committergVisor bot <gvisor-bot@google.com>2021-09-09 17:10:17 -0700
commit2572af38860ed8a5aa37f0ad705a360628a4ed10 (patch)
tree88f7ac7db4797b5d1437ed4cf9f0dc37bad57e70 /pkg/sentry/time/muldiv_arm64.s
parent833d933afda03706328ac556d08294a78e372a6a (diff)
Remove linux-compat loopback hacks from packet endpoint
Previously, gVisor did not represent loopback devices as an ethernet device as Linux does. To maintain Linux API compatibility for packet sockets, a workaround was used to add an ethernet header if a link header was not already present in the packet buffer delivered to a packet endpoint. However, this workaround is a bug for non-ethernet based interfaces; not all links use an ethernet header (e.g. pure L3/TUN interfaces). As of 3b4bb947517d0d9010120aaa1c3989fd6abf278e, gVisor represents loopback devices as an ethernet-based device so this workaround can now be removed. BUG: https://fxbug.dev/81592 Updates #6530, #6531. PiperOrigin-RevId: 395819151
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