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AP: Add support for setting bridge network parameter

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This allows setting a network parameter on the bridge that the BSS
belongs to.

This commit adds the needed functionality in driver_nl80211.c for the
Linux bridge implementation. In theory, this could be shared with
multiple Linux driver interfaces, but for now, only the main nl80211
interface is supported.

Signed-off-by: Kyeyoon Park <kyeyoonp@qca.qualcomm.com>
This commit is contained in:
Kyeyoon Park 2014-09-26 21:09:54 -07:00 committed by Jouni Malinen
parent 73d2294fbe
commit 7565752d47
3 changed files with 65 additions and 0 deletions
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10
src/ap/ap_drv_ops.h
View file

@ -310,6 +310,16 @@ static inline int hostapd_drv_br_port_set_attr(struct hostapd_data *hapd,
return hapd->driver->br_port_set_attr(hapd->drv_priv, attr, val);
}
static inline int hostapd_drv_br_set_net_param(struct hostapd_data *hapd,
enum drv_br_net_param param,
unsigned int val)
{
if (hapd->driver == NULL || hapd->drv_priv == NULL ||
hapd->driver->br_set_net_param == NULL)
return -1;
return hapd->driver->br_set_net_param(hapd->drv_priv, param, val);
}
static inline int hostapd_drv_vendor_cmd(struct hostapd_data *hapd,
int vendor_id, int subcmd,
const u8 *data, size_t data_len,

13
src/drivers/driver.h
View file

@ -1378,6 +1378,10 @@ enum drv_br_port_attr {
DRV_BR_PORT_ATTR_HAIRPIN_MODE,
};
enum drv_br_net_param {
DRV_BR_NET_PARAM_GARP_ACCEPT,
};
/**
* struct wpa_driver_ops - Driver interface API definition
@ -2633,6 +2637,15 @@ struct wpa_driver_ops {
int (*br_port_set_attr)(void *priv, enum drv_br_port_attr attr,
unsigned int val);
/**
* br_port_set_attr - Set a bridge network parameter
* @param: Bridge parameter to set
* @val: Value to be set
* Returns: 0 on success, negative (<0) on failure
*/
int (*br_set_net_param)(void *priv, enum drv_br_net_param param,
unsigned int val);
/**
* set_wowlan - Set wake-on-wireless triggers
* @priv: Private driver interface data

42
src/drivers/driver_nl80211.c
View file

@ -9035,6 +9035,47 @@ static int wpa_driver_br_port_set_attr(void *priv, enum drv_br_port_attr attr,
}
static const char * drv_br_net_param_str(enum drv_br_net_param param)
{
switch (param) {
case DRV_BR_NET_PARAM_GARP_ACCEPT:
return "arp_accept";
}
return NULL;
}
static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param,
unsigned int val)
{
struct i802_bss *bss = priv;
char path[128];
const char *param_txt;
int ip_version = 4;
param_txt = drv_br_net_param_str(param);
if (param_txt == NULL)
return -EINVAL;
switch (param) {
case DRV_BR_NET_PARAM_GARP_ACCEPT:
ip_version = 4;
break;
default:
return -EINVAL;
}
os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s",
ip_version, bss->brname, param_txt);
if (linux_write_system_file(path, val))
return -1;
return 0;
}
const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.name = "nl80211",
.desc = "Linux nl80211/cfg80211",
@ -9136,4 +9177,5 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.br_add_ip_neigh = wpa_driver_br_add_ip_neigh,
.br_delete_ip_neigh = wpa_driver_br_delete_ip_neigh,
.br_port_set_attr = wpa_driver_br_port_set_attr,
.br_set_net_param = wpa_driver_br_set_net_param,
};