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SSHMaster: Bypass SSH when connecting to localhost

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This is primarily useful for testing since it removes the need to have
SSH working.
This commit is contained in:
Eelco Dolstra 2018-08-03 18:12:28 +02:00
parent e268bbc054
commit 4e7d5f660c
No known key found for this signature in database
GPG key ID: 8170B4726D7198DE
2 changed files with 16 additions and 7 deletions
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12
src/libstore/ssh.cc
View file

@ -4,8 +4,9 @@ namespace nix {
SSHMaster::SSHMaster(const std::string & host, const std::string & keyFile, bool useMaster, bool compress, int logFD)
: host(host)
, fakeSSH(host == "localhost")
, keyFile(keyFile)
, useMaster(useMaster)
, useMaster(useMaster && !fakeSSH)
, compress(compress)
, logFD(logFD)
{
@ -45,12 +46,19 @@ std::unique_ptr<SSHMaster::Connection> SSHMaster::startCommand(const std::string
if (logFD != -1 && dup2(logFD, STDERR_FILENO) == -1)
throw SysError("duping over stderr");
Strings args = { "ssh", host.c_str(), "-x", "-a" };
Strings args;
if (fakeSSH) {
args = { "bash", "-c" };
} else {
args = { "ssh", host.c_str(), "-x", "-a" };
addCommonSSHOpts(args);
if (socketPath != "")
args.insert(args.end(), {"-S", socketPath});
if (verbosity >= lvlChatty)
args.push_back("-v");
}
args.push_back(command);
execvp(args.begin()->c_str(), stringsToCharPtrs(args).data());

1
src/libstore/ssh.hh
View file

@ -10,6 +10,7 @@ class SSHMaster
private:
const std::string host;
bool fakeSSH;
const std::string keyFile;
const bool useMaster;
const bool compress;