Systemd.exec supports configuring the runtime directory of a service
via RuntimeDirectory=. This creates the directory with the necessary
permissions which actual service may not have if running in container.
The change to DPDK is to look for the environment RUNTIME_DIRECTORY
first and use that in preference to the fallback alternatives.
Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
lib/eal/linux/eal.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/lib/eal/linux/eal.c b/lib/eal/linux/eal.c
index 60b49248388e..e729c713b393 100644
--- a/lib/eal/linux/eal.c
+++ b/lib/eal/linux/eal.c
@@ -86,25 +86,26 @@ struct lcore_config lcore_config[RTE_MAX_LCORE];
/* used by rte_rdtsc() */
int rte_cycles_vmware_tsc_map;
-static const char *default_runtime_dir = "/var/run";
-
int
eal_create_runtime_dir(void)
{
- const char *directory = default_runtime_dir;
- const char *xdg_runtime_dir = getenv("XDG_RUNTIME_DIR");
- const char *fallback = "/tmp";
+ const char *directory;
char run_dir[PATH_MAX];
char tmp[PATH_MAX];
int ret;
- if (getuid() != 0) {
- /* try XDG path first, fall back to /tmp */
- if (xdg_runtime_dir != NULL)
- directory = xdg_runtime_dir;
- else
- directory = fallback;
+ /* from RuntimeDirectory= see systemd.exec */
+ directory = getenv("RUNTIME_DIRECTORY");
+ if (directory == NULL) {
+ if (getuid() == 0)
+ directory = "/var/run";
+ else {
+ directory = getenv("XDG_RUNTIME_DIR");
+ if (directory == NULL)
+ directory = "/tmp";
+ }
}
+
/* create DPDK subdirectory under runtime dir */
ret = snprintf(tmp, sizeof(tmp), "%s/dpdk", directory);
if (ret < 0 || ret == sizeof(tmp)) {
--
2.30.2
