system-linux: get rid of SIOCSDEVPRIVATE

Use sysfs to configure the bridge settings stp/forward_delay/priority
ageing_time/hello_time and max_age as the SIOCDEVPRIVATE bridge ioctl
has no compat ioctl support which makes it impossible to set the above
mentioned bridge paramaters if the kernel is compiled in 64 bit mode
and user_space in 32 bit mode.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

1 files changed, 41 insertions, 19 deletions

diff --git a/system-linux.c b/system-linux.c
index 9694c6f..ea16ed5 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -403,6 +403,36 @@ static void system_bridge_set_startup_query_interval(struct device *dev, const c
 			      dev->ifname, val);
 }
 
+static void system_bridge_set_stp_state(struct device *dev, const char *val)
+{
+	system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/stp_state", dev->ifname, val);
+}
+
+static void system_bridge_set_forward_delay(struct device *dev, const char *val)
+{
+	system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/forward_delay", dev->ifname, val);
+}
+
+static void system_bridge_set_priority(struct device *dev, const char *val)
+{
+	system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/priority", dev->ifname, val);
+}
+
+static void system_bridge_set_ageing_time(struct device *dev, const char *val)
+{
+	system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/ageing_time", dev->ifname, val);
+}
+
+static void system_bridge_set_hello_time(struct device *dev, const char *val)
+{
+	system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hello_time", dev->ifname, val);
+}
+
+static void system_bridge_set_max_age(struct device *dev, const char *val)
+{
+	system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/max_age", dev->ifname, val);
+}
+
 static void system_bridge_set_learning(struct device *dev, const char *val)
 {
 	system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev->ifname, val);
@@ -1061,41 +1091,33 @@ static void system_bridge_conf_multicast(struct device *bridge,
 int system_bridge_addbr(struct device *bridge, struct bridge_config *cfg)
 {
 	char buf[64];
-	unsigned long args[4] = {};
 
 	if (ioctl(sock_ioctl, SIOCBRADDBR, bridge->ifname) < 0)
 		return -1;
 
-	args[0] = BRCTL_SET_BRIDGE_STP_STATE;
-	args[1] = !!cfg->stp;
-	system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
+	system_bridge_set_stp_state(bridge, cfg->stp ? "1" : "0");
 
-	args[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY;
-	args[1] = sec_to_jiffies(cfg->forward_delay);
-	system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
+	snprintf(buf, sizeof(buf), "%lu", sec_to_jiffies(cfg->forward_delay));
+	system_bridge_set_forward_delay(bridge, buf);
 
 	system_bridge_conf_multicast(bridge, cfg, buf, sizeof(buf));
 
-	args[0] = BRCTL_SET_BRIDGE_PRIORITY;
-	args[1] = cfg->priority;
-	system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
+	snprintf(buf, sizeof(buf), "%d", cfg->priority);
+	system_bridge_set_priority(bridge, buf);
 
 	if (cfg->flags & BRIDGE_OPT_AGEING_TIME) {
-		args[0] = BRCTL_SET_AGEING_TIME;
-		args[1] = sec_to_jiffies(cfg->ageing_time);
-		system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
+		snprintf(buf, sizeof(buf), "%lu", sec_to_jiffies(cfg->ageing_time));
+		system_bridge_set_ageing_time(bridge, buf);
 	}
 
 	if (cfg->flags & BRIDGE_OPT_HELLO_TIME) {
-		args[0] = BRCTL_SET_BRIDGE_HELLO_TIME;
-		args[1] = sec_to_jiffies(cfg->hello_time);
-		system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
+		snprintf(buf, sizeof(buf), "%lu", sec_to_jiffies(cfg->hello_time));
+		system_bridge_set_hello_time(bridge, buf);
 	}
 
 	if (cfg->flags & BRIDGE_OPT_MAX_AGE) {
-		args[0] = BRCTL_SET_BRIDGE_MAX_AGE;
-		args[1] = sec_to_jiffies(cfg->max_age);
-		system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
+		snprintf(buf, sizeof(buf), "%lu", sec_to_jiffies(cfg->max_age));
+		system_bridge_set_max_age(bridge, buf);
 	}
 
 	return 0;