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authorHartmut Goebel <h.goebel@crazy-compilers.com>2016-11-21 19:49:12 +0100
committerHartmut Goebel <h.goebel@crazy-compilers.com>2016-12-09 15:46:09 +0100
commit2608e40988ba8cf51723fe0d21bdedf6b3997c9c (patch)
treea50081f9bc00670849296fd8f799b9a5c13ba4c9 /nix/nix-daemon/nix-daemon.cc
parent43e8824d3cd3ff53671167ab9b41f0094458a4d6 (diff)
daemon: Set ownership of kept build directories to the calling user.
Fixes <http://bugs.gnu.org/15890>. * nix/libstore/globals.hh (Settings) Add clientUid and clientGid. * nix/nix-daemon/nix-daemon.cc (daemonLoop] Store UID and GID of the caller in settings. * nix/libstore/build.cc (_chown): New function. (DerivationGoal::deleteTmpDir): Use it, change ownership of build directory if it is kept and the new owner is not root.
Diffstat (limited to 'nix/nix-daemon/nix-daemon.cc')
-rw-r--r--nix/nix-daemon/nix-daemon.cc12
1 files changed, 12 insertions, 0 deletions
diff --git a/nix/nix-daemon/nix-daemon.cc b/nix/nix-daemon/nix-daemon.cc
index 682f9a2b5b..47b67d5863 100644
--- a/nix/nix-daemon/nix-daemon.cc
+++ b/nix/nix-daemon/nix-daemon.cc
@@ -960,6 +960,18 @@ static void daemonLoop()
strncpy(argvSaved[1], processName.c_str(), strlen(argvSaved[1]));
}
+#if defined(SO_PEERCRED)
+ /* Store the client's user and group for this connection. This
+ has to be done in the forked process since it is per
+ connection. */
+ settings.clientUid = cred.uid;
+ settings.clientGid = cred.gid;
+#else
+ /* Setting these to -1 means: do not change */
+ settings.clientUid = (uid_t) -1;
+ settings.clientGid = (gid_t) -1;
+#endif
+
/* Handle the connection. */
from.fd = remote;
to.fd = remote;