Add TC_LIB_DIR environment variable.
Don't hardcode /usr/lib/tc as a path
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
diff --git a/tc/q_netem.c b/tc/q_netem.c
index 67a2ff3..f08b9c1 100644
--- a/tc/q_netem.c
+++ b/tc/q_netem.c
@@ -60,7 +60,7 @@
char *line = NULL;
char name[128];
- snprintf(name, sizeof(name), "/usr/lib/tc/%s.dist", type);
+ snprintf(name, sizeof(name), "%s/%s.dist", get_tc_lib(), type);
if ((f = fopen(name, "r")) == NULL) {
fprintf(stderr, "No distribution data for %s (%s: %s)\n",
type, name, strerror(errno));
diff --git a/tc/tc.c b/tc/tc.c
index 6672e18..f23ba04 100644
--- a/tc/tc.c
+++ b/tc/tc.c
@@ -99,7 +99,7 @@
if (strcmp(q->id, str) == 0)
return q;
- snprintf(buf, sizeof(buf), "/usr/lib/tc/q_%s.so", str);
+ snprintf(buf, sizeof(buf), "%s/q_%s.so", get_tc_lib(), str);
dlh = dlopen(buf, RTLD_LAZY);
if (!dlh) {
/* look in current binary, only open once */
@@ -145,7 +145,7 @@
if (strcmp(q->id, str) == 0)
return q;
- snprintf(buf, sizeof(buf), "/usr/lib/tc/f_%s.so", str);
+ snprintf(buf, sizeof(buf), "%s/f_%s.so", get_tc_lib(), str);
dlh = dlopen(buf, RTLD_LAZY);
if (dlh == NULL) {
dlh = BODY;
diff --git a/tc/tc_util.c b/tc/tc_util.c
index a7e4257..cdbae42 100644
--- a/tc/tc_util.c
+++ b/tc/tc_util.c
@@ -24,6 +24,17 @@
#include "utils.h"
#include "tc_util.h"
+const char *get_tc_lib(void)
+{
+ const char *lib_dir;
+
+ lib_dir = getenv("TC_LIB_DIR");
+ if (!lib_dir)
+ lib_dir = "/usr/lib/tc";
+
+ return lib_dir;
+}
+
int get_qdisc_handle(__u32 *h, const char *str)
{
__u32 maj;
diff --git a/tc/tc_util.h b/tc/tc_util.h
index eade72d..120d6ce 100644
--- a/tc/tc_util.h
+++ b/tc/tc_util.h
@@ -38,6 +38,8 @@
int (*print_xstats)(struct action_util *au, FILE *f, struct rtattr *xstats);
};
+extern const char *get_tc_lib(void);
+
extern struct qdisc_util *get_qdisc_kind(const char *str);
extern struct filter_util *get_filter_kind(const char *str);