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From f2300a5c3226d3a66d77c34ae811401c638f430f Mon Sep 17 00:00:00 2001
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From: Ronny Chevalier <chevalier.ronny@gmail.com>
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Date: Mon, 21 Sep 2015 15:45:51 +0200
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Subject: [PATCH] core: fix group ownership when Group is set
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When Group is set in the unit, the runtime directories are owned by
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this group and not the default group of the user (same for cgroup paths
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and standard outputs)
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Fix #1231
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Cherry-picked from: 5bc7452b3219456e07f931e40da30bb94a884293
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Resolves: #1324826
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---
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src/core/execute.c | 19 +++++++++++--------
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src/test/test-execute.c | 1 +
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test/exec-runtimedirectory-owner.service | 9 +++++++++
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3 files changed, 21 insertions(+), 8 deletions(-)
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create mode 100644 test/exec-runtimedirectory-owner.service
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diff --git a/src/core/execute.c b/src/core/execute.c
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index 1815e3de2..8172c8b44 100644
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--- a/src/core/execute.c
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+++ b/src/core/execute.c
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@@ -629,14 +629,6 @@ static int enforce_groups(const ExecContext *context, const char *username, gid_
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* we avoid NSS lookups for gid=0. */
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if (context->group || username) {
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-
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- if (context->group) {
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- const char *g = context->group;
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-
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- if ((r = get_group_creds(&g, &gid)) < 0)
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- return r;
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- }
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-
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/* First step, initialize groups from /etc/groups */
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if (username && gid != 0) {
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if (initgroups(username, gid) < 0)
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@@ -1374,6 +1366,17 @@ static int exec_child(
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}
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}
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+ if (context->group) {
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+ const char *g = context->group;
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+
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+ r = get_group_creds(&g, &gid;;
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+ if (r < 0) {
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+ *exit_status = EXIT_GROUP;
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+ return r;
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+ }
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+ }
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+
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+
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/* If a socket is connected to STDIN/STDOUT/STDERR, we
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* must sure to drop O_NONBLOCK */
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if (socket_fd >= 0)
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diff --git a/src/test/test-execute.c b/src/test/test-execute.c
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index 90b1c871c..38522a168 100644
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--- a/src/test/test-execute.c
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+++ b/src/test/test-execute.c
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@@ -144,6 +144,7 @@ static void test_exec_umask(Manager *m) {
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static void test_exec_runtimedirectory(Manager *m) {
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test(m, "exec-runtimedirectory.service", 0, CLD_EXITED);
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test(m, "exec-runtimedirectory-mode.service", 0, CLD_EXITED);
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+ test(m, "exec-runtimedirectory-owner.service", 0, CLD_EXITED);
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}
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int main(int argc, char *argv[]) {
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diff --git a/test/exec-runtimedirectory-owner.service b/test/exec-runtimedirectory-owner.service
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new file mode 100644
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index 000000000..077e08d1c
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--- /dev/null
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+++ b/test/exec-runtimedirectory-owner.service
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@@ -0,0 +1,9 @@
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+[Unit]
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+Description=Test for RuntimeDirectory owner (must not be the default group of the user if Group is set)
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+
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+[Service]
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+ExecStart=/bin/sh -c 'f=/tmp/test-exec_runtimedirectory-owner;g=$(stat -c %G $f); echo "$g"; exit $(test $g = "nobody")'
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+Type=oneshot
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+Group=nobody
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+User=root
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+RuntimeDirectory=test-exec_runtimedirectory-owner
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