mirror of
https://github.com/containers/podman.git
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642fa98976
This includes two new hidden commands: a 9p server, `podman machine server9p`, and a 9p client, `podman machine client9p` with `server9p` currently only configured to run on Windows and serve 9p via HyperV vsock, and `client9p` only configured to run on Linux. The server is run by `podman machine start` and has the same lifespan as gvproxy (waits for the gvproxy PID to die before shutting down). The client is run inside the VM, also by `podman machine start`, and mounts uses kernel 9p mount code to complete the mount. It's unfortunately not possible to use mount directly without the wrapper; we need to set up the vsock and pass it to mount as an FD. In theory this can be generalized so that the server can run anywhere and over almost any transport, but I haven't done this here as I don't think we have a usecase other than HyperV right now. [NO NEW TESTS NEEDED] This requires changes to Podman in the VM, so we need to wait until a build with this lands in FCOS to test. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
package internal
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import (
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"os"
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)
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// NOTE: taken from amd64 Linux
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type Timespec struct {
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Sec int64
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Nsec int64
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}
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type Stat_t struct {
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Dev uint64
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Ino uint64
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Nlink uint64
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Mode uint32
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Uid uint32
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Gid uint32
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Rdev uint64
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Size int64
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Blksize int64
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Blocks int64
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Atim Timespec
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Mtim Timespec
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Ctim Timespec
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}
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// InfoToStat takes a platform native FileInfo and converts it into a 9P2000.L compatible Stat_t
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func InfoToStat(fi os.FileInfo) *Stat_t {
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return &Stat_t{
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Size: fi.Size(),
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Mode: uint32(modeFromOS(fi.Mode())),
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Mtim: Timespec{
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Sec: fi.ModTime().Unix(),
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Nsec: fi.ModTime().UnixNano(),
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},
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}
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}
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// TODO: copied from pkg p9
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// we should probably migrate the OS methods from p9 into sys
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const (
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FileModeMask uint32 = 0170000
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ModeSocket = 0140000
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ModeSymlink = 0120000
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ModeRegular = 0100000
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ModeBlockDevice = 060000
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ModeDirectory = 040000
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ModeCharacterDevice = 020000
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ModeNamedPipe = 010000
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)
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func modeFromOS(mode os.FileMode) uint32 {
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m := uint32(mode.Perm())
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switch {
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case mode.IsDir():
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m |= ModeDirectory
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case mode&os.ModeSymlink != 0:
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m |= ModeSymlink
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case mode&os.ModeSocket != 0:
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m |= ModeSocket
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case mode&os.ModeNamedPipe != 0:
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m |= ModeNamedPipe
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case mode&os.ModeCharDevice != 0:
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m |= ModeCharacterDevice
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case mode&os.ModeDevice != 0:
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m |= ModeBlockDevice
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default:
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m |= ModeRegular
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}
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return m
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}
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