diff options
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
| -rw-r--r-- | drivers/net/wireless/mac80211_hwsim.c | 97 |
1 files changed, 94 insertions, 3 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 9ed0ed1bf514..0c75e8d9d953 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -30,6 +30,8 @@ #include <linux/module.h> #include <linux/ktime.h> #include <net/genetlink.h> +#include <net/net_namespace.h> +#include <net/netns/generic.h> #include "mac80211_hwsim.h" #define WARN_QUEUE 100 @@ -250,6 +252,28 @@ static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c) cp->magic = 0; } +static unsigned int hwsim_net_id; + +static int hwsim_netgroup; + +struct hwsim_net { + int netgroup; +}; + +static inline int hwsim_net_get_netgroup(struct net *net) +{ + struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id); + + return hwsim_net->netgroup; +} + +static inline void hwsim_net_set_netgroup(struct net *net) +{ + struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id); + + hwsim_net->netgroup = hwsim_netgroup++; +} + static struct class *hwsim_class; static struct net_device *hwsim_mon; /* global monitor netdev */ @@ -526,6 +550,9 @@ struct mac80211_hwsim_data { */ u64 group; + /* group shared by radios created in the same netns */ + int netgroup; + int power_level; /* difference between this hw's clock and the real clock, in usecs */ @@ -568,6 +595,7 @@ static struct genl_family hwsim_genl_family = { .name = "MAC80211_HWSIM", .version = 1, .maxattr = HWSIM_ATTR_MAX, + .netnsok = true, }; enum hwsim_multicast_groups { @@ -1202,6 +1230,9 @@ static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw, if (!(data->group & data2->group)) continue; + if (data->netgroup != data2->netgroup) + continue; + if (!hwsim_chans_compat(chan, data2->tmp_chan) && !hwsim_chans_compat(chan, data2->channel)) { ieee80211_iterate_active_interfaces_atomic( @@ -2349,6 +2380,7 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, struct ieee80211_hw *hw; enum nl80211_band band; const struct ieee80211_ops *ops = &mac80211_hwsim_ops; + struct net *net; int idx; if (WARN_ON(param->channels > 1 && !param->use_chanctx)) @@ -2366,6 +2398,13 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, err = -ENOMEM; goto failed; } + + if (info) + net = genl_info_net(info); + else + net = &init_net; + wiphy_net_set(hw->wiphy, net); + data = hw->priv; data->hw = hw; @@ -2541,6 +2580,8 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, data->group = 1; mutex_init(&data->mutex); + data->netgroup = hwsim_net_get_netgroup(net); + /* Enable frame retransmissions for lossy channels */ hw->max_rates = 4; hw->max_rate_tries = 11; @@ -3013,6 +3054,9 @@ static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info) continue; } + if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info))) + continue; + list_del(&data->list); spin_unlock_bh(&hwsim_radio_lock); mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy), @@ -3039,6 +3083,9 @@ static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info) if (data->idx != idx) continue; + if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info))) + continue; + skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!skb) { res = -ENOMEM; @@ -3078,6 +3125,9 @@ static int hwsim_dump_radio_nl(struct sk_buff *skb, if (data->idx < idx) continue; + if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk))) + continue; + res = mac80211_hwsim_get_radio(skb, data, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, cb, @@ -3117,13 +3167,13 @@ static const struct genl_ops hwsim_ops[] = { .cmd = HWSIM_CMD_NEW_RADIO, .policy = hwsim_genl_policy, .doit = hwsim_new_radio_nl, - .flags = GENL_ADMIN_PERM, + .flags = GENL_UNS_ADMIN_PERM, }, { .cmd = HWSIM_CMD_DEL_RADIO, .policy = hwsim_genl_policy, .doit = hwsim_del_radio_nl, - .flags = GENL_ADMIN_PERM, + .flags = GENL_UNS_ADMIN_PERM, }, { .cmd = HWSIM_CMD_GET_RADIO, @@ -3205,6 +3255,40 @@ failure: return -EINVAL; } +static __net_init int hwsim_init_net(struct net *net) +{ + hwsim_net_set_netgroup(net); + + return 0; +} + +static void __net_exit hwsim_exit_net(struct net *net) +{ + struct mac80211_hwsim_data *data, *tmp; + + spin_lock_bh(&hwsim_radio_lock); + list_for_each_entry_safe(data, tmp, &hwsim_radios, list) { + if (!net_eq(wiphy_net(data->hw->wiphy), net)) + continue; + + /* Radios created in init_net are returned to init_net. */ + if (data->netgroup == hwsim_net_get_netgroup(&init_net)) + continue; + + list_del(&data->list); + INIT_WORK(&data->destroy_work, destroy_radio); + schedule_work(&data->destroy_work); + } + spin_unlock_bh(&hwsim_radio_lock); +} + +static struct pernet_operations hwsim_net_ops = { + .init = hwsim_init_net, + .exit = hwsim_exit_net, + .id = &hwsim_net_id, + .size = sizeof(struct hwsim_net), +}; + static void hwsim_exit_netlink(void) { /* unregister the notifier */ @@ -3241,10 +3325,14 @@ static int __init init_mac80211_hwsim(void) spin_lock_init(&hwsim_radio_lock); INIT_LIST_HEAD(&hwsim_radios); - err = platform_driver_register(&mac80211_hwsim_driver); + err = register_pernet_device(&hwsim_net_ops); if (err) return err; + err = platform_driver_register(&mac80211_hwsim_driver); + if (err) + goto out_unregister_pernet; + hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim"); if (IS_ERR(hwsim_class)) { err = PTR_ERR(hwsim_class); @@ -3362,6 +3450,8 @@ out_free_radios: mac80211_hwsim_free(); out_unregister_driver: platform_driver_unregister(&mac80211_hwsim_driver); +out_unregister_pernet: + unregister_pernet_device(&hwsim_net_ops); return err; } module_init(init_mac80211_hwsim); @@ -3375,5 +3465,6 @@ static void __exit exit_mac80211_hwsim(void) mac80211_hwsim_free(); unregister_netdev(hwsim_mon); platform_driver_unregister(&mac80211_hwsim_driver); + unregister_pernet_device(&hwsim_net_ops); } module_exit(exit_mac80211_hwsim); |