From: Felix Fietkau Date: Sun, 9 Oct 2011 20:30:16 +0000 (+0200) Subject: add more options for bridges, enable stp by default and set forwarding delay to 1 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=6103b065ee1fa7c9e3766b981cd090928683a2a6;p=oweals%2Fnetifd.git add more options for bridges, enable stp by default and set forwarding delay to 1 --- diff --git a/bridge.c b/bridge.c index c3b02bd..caf6197 100644 --- a/bridge.c +++ b/bridge.c @@ -12,12 +12,20 @@ enum { BRIDGE_ATTR_IFNAME, BRIDGE_ATTR_STP, + BRIDGE_ATTR_FORWARD_DELAY, + BRIDGE_ATTR_AGEING_TIME, + BRIDGE_ATTR_HELLO_TIME, + BRIDGE_ATTR_MAX_AGE, __BRIDGE_ATTR_MAX }; static const struct blobmsg_policy bridge_attrs[__BRIDGE_ATTR_MAX] = { [BRIDGE_ATTR_IFNAME] = { "ifname", BLOBMSG_TYPE_ARRAY }, [BRIDGE_ATTR_STP] = { "stp", BLOBMSG_TYPE_BOOL }, + [BRIDGE_ATTR_FORWARD_DELAY] = { "forward_delay", BLOBMSG_TYPE_INT32 }, + [BRIDGE_ATTR_AGEING_TIME] = { "ageing_time", BLOBMSG_TYPE_INT32 }, + [BRIDGE_ATTR_HELLO_TIME] = { "hello_time", BLOBMSG_TYPE_INT32 }, + [BRIDGE_ATTR_MAX_AGE] = { "max_age", BLOBMSG_TYPE_INT32 }, }; static const union config_param_info bridge_attr_info[__BRIDGE_ATTR_MAX] = { @@ -52,6 +60,7 @@ struct bridge_state { struct device dev; device_state_cb set_state; + struct bridge_config config; struct blob_attr *ifnames; bool active; @@ -166,7 +175,7 @@ bridge_set_up(struct bridge_state *bst) if (!bst->n_present) return -ENOENT; - ret = system_bridge_addbr(&bst->dev); + ret = system_bridge_addbr(&bst->dev, &bst->config); if (ret < 0) goto out; @@ -322,6 +331,38 @@ bridge_config_init(struct device *dev) } } +static void +bridge_apply_settings(struct bridge_state *bst, struct blob_attr **tb) +{ + struct bridge_config *cfg = &bst->config; + struct blob_attr *cur; + + /* defaults */ + cfg->stp = true; + cfg->forward_delay = 1; + + if ((cur = tb[BRIDGE_ATTR_STP])) + cfg->stp = blobmsg_get_bool(cur); + + if ((cur = tb[BRIDGE_ATTR_FORWARD_DELAY])) + cfg->forward_delay = blobmsg_get_u32(cur); + + if ((cur = tb[BRIDGE_ATTR_AGEING_TIME])) { + cfg->ageing_time = blobmsg_get_u32(cur); + cfg->flags |= BRIDGE_OPT_AGEING_TIME; + } + + if ((cur = tb[BRIDGE_ATTR_HELLO_TIME])) { + cfg->hello_time = blobmsg_get_u32(cur); + cfg->flags |= BRIDGE_OPT_HELLO_TIME; + } + + if ((cur = tb[BRIDGE_ATTR_MAX_AGE])) { + cfg->max_age = blobmsg_get_u32(cur); + cfg->flags |= BRIDGE_OPT_MAX_AGE; + } +} + static struct device * bridge_create(struct blob_attr *attr) { @@ -353,6 +394,7 @@ bridge_create(struct blob_attr *attr) device_init_settings(dev, tb_dev); dev->config_pending = true; bst->ifnames = tb_br[BRIDGE_ATTR_IFNAME]; + bridge_apply_settings(bst, tb_br); bst->set_state = dev->set_state; dev->set_state = bridge_set_state; diff --git a/system-dummy.c b/system-dummy.c index d1557f9..9a646dc 100644 --- a/system-dummy.c +++ b/system-dummy.c @@ -16,7 +16,7 @@ int system_init(void) return 0; } -int system_bridge_addbr(struct device *bridge) +int system_bridge_addbr(struct device *bridge, struct bridge_config *cfg) { D(SYSTEM, "brctl addbr %s\n", bridge->ifname); return 0; diff --git a/system-linux.c b/system-linux.c index 725723d..b823099 100644 --- a/system-linux.c +++ b/system-linux.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include @@ -121,22 +122,25 @@ int system_bridge_delbr(struct device *bridge) return ioctl(sock_ioctl, SIOCBRDELBR, bridge->ifname); } -static int system_bridge_if(const char *bridge, struct device *dev, int cmd) +static int system_bridge_if(const char *bridge, struct device *dev, int cmd, void *data) { struct ifreq ifr; - ifr.ifr_ifindex = dev->ifindex; + if (dev) + ifr.ifr_ifindex = dev->ifindex; + else + ifr.ifr_data = data; strncpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name)); return ioctl(sock_ioctl, cmd, &ifr); } int system_bridge_addif(struct device *bridge, struct device *dev) { - return system_bridge_if(bridge->ifname, dev, SIOCBRADDIF); + return system_bridge_if(bridge->ifname, dev, SIOCBRADDIF, NULL); } int system_bridge_delif(struct device *bridge, struct device *dev) { - return system_bridge_if(bridge->ifname, dev, SIOCBRDELIF); + return system_bridge_if(bridge->ifname, dev, SIOCBRDELIF, NULL); } static bool system_is_bridge(const char *name, char *buf, int buflen) @@ -218,14 +222,51 @@ static void system_if_clear_state(struct device *dev) bridge = system_get_bridge(dev->ifname, buf, sizeof(buf)); if (bridge) { D(SYSTEM, "Remove device '%s' from bridge '%s'\n", dev->ifname, bridge); - system_bridge_if(bridge, dev, SIOCBRDELIF); + system_bridge_if(bridge, dev, SIOCBRDELIF, NULL); } } -int system_bridge_addbr(struct device *bridge) +static inline unsigned long +sec_to_jiffies(int val) +{ + return (unsigned long) val * 100; +} + +int system_bridge_addbr(struct device *bridge, struct bridge_config *cfg) { + unsigned long args[4] = {}; + system_if_clear_state(bridge); - return ioctl(sock_ioctl, SIOCBRADDBR, bridge->ifname); + 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); + + args[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY; + args[1] = sec_to_jiffies(cfg->forward_delay); + system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args); + + 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); + } + + 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); + } + + 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); + } + + return 0; } static int system_vlan(struct device *dev, int id) diff --git a/system.h b/system.h index c9b28c8..a2bcf04 100644 --- a/system.h +++ b/system.h @@ -5,9 +5,26 @@ #include "device.h" #include "interface-ip.h" +enum bridge_opt { + /* stp and forward delay always set */ + BRIDGE_OPT_AGEING_TIME = (1 << 0), + BRIDGE_OPT_HELLO_TIME = (1 << 1), + BRIDGE_OPT_MAX_AGE = (1 << 2), +}; + +struct bridge_config { + enum bridge_opt flags; + bool stp; + int forward_delay; + + int ageing_time; + int hello_time; + int max_age; +}; + int system_init(void); -int system_bridge_addbr(struct device *bridge); +int system_bridge_addbr(struct device *bridge, struct bridge_config *cfg); int system_bridge_delbr(struct device *bridge); int system_bridge_addif(struct device *bridge, struct device *dev); int system_bridge_delif(struct device *bridge, struct device *dev);