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wgengine/netstack: start supporting different SSH users

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Updates #3802

Change-Id: I44de6897e36b1362cd74c9b10c9cbfeb9abc3dbc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2022-02-02 13:37:03 -08:00 committed by Brad Fitzpatrick
parent e3dccfd7ff
commit 6eed2811b2
1 changed files with 7 additions and 1 deletions
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8
wgengine/netstack/ssh.go
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@ -107,7 +107,13 @@ func (ns *Impl) handleSSH(s ssh.Session) {
return return
} }
cmd := exec.Command("/bin/bash") var cmd *exec.Cmd
sshUser := s.User()
if os.Getuid() != 0 || sshUser == "root" {
cmd = exec.Command("/bin/bash")
} else {
cmd = exec.Command("/usr/bin/env", "su", "-", sshUser)
}
cmd.Env = append(cmd.Env, fmt.Sprintf("TERM=%s", ptyReq.Term)) cmd.Env = append(cmd.Env, fmt.Sprintf("TERM=%s", ptyReq.Term))
f, err := pty.Start(cmd) f, err := pty.Start(cmd)
if err != nil { if err != nil {