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-rw-r--r--brctl/brctl_cmd.c38
-rw-r--r--brctl/brctl_disp.c2
-rw-r--r--libbridge/libbridge.h3
-rw-r--r--libbridge/libbridge_devif.c8
4 files changed, 51 insertions, 0 deletions
diff --git a/brctl/brctl_cmd.c b/brctl/brctl_cmd.c
index c93dd55..d37e99c 100644
--- a/brctl/brctl_cmd.c
+++ b/brctl/brctl_cmd.c
@@ -395,6 +395,42 @@ static int br_cmd_showmacs(int argc, char *const* argv)
return 0;
}
+static int br_cmd_hairpin(int argc, char *const* argv)
+{
+ int hairpin, err;
+ const char *brname = *++argv;
+ const char *ifname = *++argv;
+ const char *hpmode = *++argv;
+
+ if (!strcmp(hpmode, "on") || !strcmp(hpmode, "yes")
+ || !strcmp(hpmode, "1"))
+ hairpin = 1;
+ else if (!strcmp(hpmode, "off") || !strcmp(hpmode, "no")
+ || !strcmp(hpmode, "0"))
+ hairpin = 0;
+ else {
+ fprintf(stderr, "expect on/off for argument\n");
+ return 1;
+ }
+ if (if_nametoindex(ifname) == 0) {
+ fprintf(stderr, "interface %s does not exist!\n",
+ ifname);
+ return 1;
+ } else if (if_nametoindex(brname) == 0) {
+ fprintf(stderr, "bridge %s does not exist!\n",
+ brname);
+ return 1;
+ }
+
+ err = br_set_hairpin_mode(brname, ifname, hairpin);
+
+ if (err) {
+ fprintf(stderr, "can't set %s to hairpin on bridge %s: %s\n",
+ ifname, brname, strerror(err));
+ }
+ return err != 0;
+}
+
static const struct command commands[] = {
{ 1, "addbr", br_cmd_addbr, "<bridge>\t\tadd bridge" },
{ 1, "delbr", br_cmd_delbr, "<bridge>\t\tdelete bridge" },
@@ -402,6 +438,8 @@ static const struct command commands[] = {
"<bridge> <device>\tadd interface to bridge" },
{ 2, "delif", br_cmd_delif,
"<bridge> <device>\tdelete interface from bridge" },
+ { 3, "hairpin", br_cmd_hairpin,
+ "<bridge> <port> {on|off}\tturn hairpin on/off" },
{ 2, "setageing", br_cmd_setageing,
"<bridge> <time>\t\tset ageing time" },
{ 2, "setbridgeprio", br_cmd_setbridgeprio,
diff --git a/brctl/brctl_disp.c b/brctl/brctl_disp.c
index 27ce6d2..3e81241 100644
--- a/brctl/brctl_disp.c
+++ b/brctl/brctl_disp.c
@@ -93,6 +93,8 @@ static int dump_port_info(const char *br, const char *p, void *arg)
printf("CONFIG_PENDING ");
if (pinfo.top_change_ack)
printf("TOPOLOGY_CHANGE_ACK ");
+ if (pinfo.hairpin_mode)
+ printf("\n hairpin mode\t\t\%4i", pinfo.hairpin_mode);
printf("\n");
printf("\n");
return 0;
diff --git a/libbridge/libbridge.h b/libbridge/libbridge.h
index 016acea..39964f2 100644
--- a/libbridge/libbridge.h
+++ b/libbridge/libbridge.h
@@ -80,6 +80,7 @@ struct port_info
struct timeval message_age_timer_value;
struct timeval forward_delay_timer_value;
struct timeval hold_timer_value;
+ unsigned char hairpin_mode;
};
extern int br_init(void);
@@ -113,4 +114,6 @@ extern int br_set_path_cost(const char *br, const char *p,
int path_cost);
extern int br_read_fdb(const char *br, struct fdb_entry *fdbs,
unsigned long skip, int num);
+extern int br_set_hairpin_mode(const char *bridge, const char *dev,
+ int hairpin_mode);
#endif
diff --git a/libbridge/libbridge_devif.c b/libbridge/libbridge_devif.c
index 3a4868c..aa8bc36 100644
--- a/libbridge/libbridge_devif.c
+++ b/libbridge/libbridge_devif.c
@@ -238,6 +238,7 @@ static int old_get_port_info(const char *brname, const char *port,
__jiffies_to_tv(&info->forward_delay_timer_value,
i.forward_delay_timer_value);
__jiffies_to_tv(&info->hold_timer_value, i.hold_timer_value);
+ info->hairpin_mode = 0;
return 0;
}
@@ -270,6 +271,8 @@ int br_get_port_info(const char *brname, const char *port,
fetch_tv(path, "message_age_timer", &info->message_age_timer_value);
fetch_tv(path, "forward_delay_timer", &info->forward_delay_timer_value);
fetch_tv(path, "hold_timer", &info->hold_timer_value);
+ info->hairpin_mode = fetch_int(path, "hairpin_mode");
+
closedir(d);
return 0;
@@ -380,6 +383,11 @@ int br_set_path_cost(const char *bridge, const char *port, int cost)
return port_set(bridge, port, "path_cost", cost, BRCTL_SET_PATH_COST);
}
+int br_set_hairpin_mode(const char *bridge, const char *port, int hairpin_mode)
+{
+ return port_set(bridge, port, "hairpin_mode", hairpin_mode, 0);
+}
+
static inline void __copy_fdb(struct fdb_entry *ent,
const struct __fdb_entry *f)
{