df39e8ba56
Conflicts: drivers/net/ehea/ehea_main.c drivers/net/wireless/iwlwifi/Kconfig drivers/net/wireless/rt2x00/rt61pci.c net/ipv4/inet_timewait_sock.c net/ipv6/raw.c net/mac80211/ieee80211_sta.c
1677 lines
37 KiB
C
1677 lines
37 KiB
C
/*
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* This is the new netlink-based wireless configuration interface.
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*
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* Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
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*/
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#include <linux/if.h>
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#include <linux/module.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <linux/list.h>
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#include <linux/if_ether.h>
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#include <linux/ieee80211.h>
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#include <linux/nl80211.h>
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#include <linux/rtnetlink.h>
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#include <linux/netlink.h>
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#include <net/genetlink.h>
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#include <net/cfg80211.h>
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#include "core.h"
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#include "nl80211.h"
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/* the netlink family */
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static struct genl_family nl80211_fam = {
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.id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
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.name = "nl80211", /* have users key off the name instead */
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.hdrsize = 0, /* no private header */
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.version = 1, /* no particular meaning now */
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.maxattr = NL80211_ATTR_MAX,
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};
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/* internal helper: get drv and dev */
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static int get_drv_dev_by_info_ifindex(struct genl_info *info,
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struct cfg80211_registered_device **drv,
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struct net_device **dev)
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{
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int ifindex;
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if (!info->attrs[NL80211_ATTR_IFINDEX])
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return -EINVAL;
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ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
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*dev = dev_get_by_index(&init_net, ifindex);
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if (!*dev)
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return -ENODEV;
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*drv = cfg80211_get_dev_from_ifindex(ifindex);
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if (IS_ERR(*drv)) {
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dev_put(*dev);
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return PTR_ERR(*drv);
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}
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return 0;
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}
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/* policy for the attributes */
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static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
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[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
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[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
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.len = BUS_ID_SIZE-1 },
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[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
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[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
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[NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
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[NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
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[NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
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.len = WLAN_MAX_KEY_LEN },
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[NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
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[NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
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[NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
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[NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
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[NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
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[NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_DATA_LEN },
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[NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
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[NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
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[NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
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[NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
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.len = NL80211_MAX_SUPP_RATES },
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[NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
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[NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
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[NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED },
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[NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
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.len = IEEE80211_MAX_MESH_ID_LEN },
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[NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
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};
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/* message building helper */
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static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
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int flags, u8 cmd)
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{
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/* since there is no private header just add the generic one */
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return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
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}
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/* netlink command implementations */
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static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
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struct cfg80211_registered_device *dev)
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{
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void *hdr;
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struct nlattr *nl_bands, *nl_band;
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struct nlattr *nl_freqs, *nl_freq;
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struct nlattr *nl_rates, *nl_rate;
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enum ieee80211_band band;
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struct ieee80211_channel *chan;
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struct ieee80211_rate *rate;
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int i;
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hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
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if (!hdr)
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return -1;
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NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
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NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
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nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
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if (!nl_bands)
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goto nla_put_failure;
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for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
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if (!dev->wiphy.bands[band])
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continue;
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nl_band = nla_nest_start(msg, band);
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if (!nl_band)
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goto nla_put_failure;
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/* add frequencies */
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nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
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if (!nl_freqs)
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goto nla_put_failure;
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for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
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nl_freq = nla_nest_start(msg, i);
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if (!nl_freq)
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goto nla_put_failure;
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chan = &dev->wiphy.bands[band]->channels[i];
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NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
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chan->center_freq);
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if (chan->flags & IEEE80211_CHAN_DISABLED)
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NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
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if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
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NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
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if (chan->flags & IEEE80211_CHAN_NO_IBSS)
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NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
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if (chan->flags & IEEE80211_CHAN_RADAR)
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NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
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nla_nest_end(msg, nl_freq);
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}
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nla_nest_end(msg, nl_freqs);
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/* add bitrates */
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nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
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if (!nl_rates)
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goto nla_put_failure;
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for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
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nl_rate = nla_nest_start(msg, i);
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if (!nl_rate)
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goto nla_put_failure;
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rate = &dev->wiphy.bands[band]->bitrates[i];
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NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
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rate->bitrate);
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if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
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NLA_PUT_FLAG(msg,
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NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
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nla_nest_end(msg, nl_rate);
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}
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nla_nest_end(msg, nl_rates);
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nla_nest_end(msg, nl_band);
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}
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nla_nest_end(msg, nl_bands);
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return genlmsg_end(msg, hdr);
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nla_put_failure:
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return genlmsg_cancel(msg, hdr);
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}
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static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
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{
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int idx = 0;
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int start = cb->args[0];
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struct cfg80211_registered_device *dev;
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mutex_lock(&cfg80211_drv_mutex);
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list_for_each_entry(dev, &cfg80211_drv_list, list) {
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if (++idx < start)
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continue;
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if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
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cb->nlh->nlmsg_seq, NLM_F_MULTI,
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dev) < 0)
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break;
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}
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mutex_unlock(&cfg80211_drv_mutex);
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cb->args[0] = idx;
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return skb->len;
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}
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static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
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{
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struct sk_buff *msg;
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struct cfg80211_registered_device *dev;
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dev = cfg80211_get_dev_from_info(info);
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if (IS_ERR(dev))
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return PTR_ERR(dev);
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msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
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if (!msg)
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goto out_err;
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if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
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goto out_free;
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cfg80211_put_dev(dev);
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return genlmsg_unicast(msg, info->snd_pid);
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out_free:
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nlmsg_free(msg);
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out_err:
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cfg80211_put_dev(dev);
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return -ENOBUFS;
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}
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static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
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{
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struct cfg80211_registered_device *rdev;
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int result;
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if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
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return -EINVAL;
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rdev = cfg80211_get_dev_from_info(info);
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if (IS_ERR(rdev))
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return PTR_ERR(rdev);
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result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
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cfg80211_put_dev(rdev);
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return result;
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}
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static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
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struct net_device *dev)
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{
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void *hdr;
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hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
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if (!hdr)
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return -1;
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NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
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NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
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/* TODO: interface type */
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return genlmsg_end(msg, hdr);
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nla_put_failure:
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return genlmsg_cancel(msg, hdr);
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}
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static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
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{
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int wp_idx = 0;
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int if_idx = 0;
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int wp_start = cb->args[0];
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int if_start = cb->args[1];
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struct cfg80211_registered_device *dev;
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struct wireless_dev *wdev;
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mutex_lock(&cfg80211_drv_mutex);
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list_for_each_entry(dev, &cfg80211_drv_list, list) {
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if (++wp_idx < wp_start)
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continue;
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if_idx = 0;
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mutex_lock(&dev->devlist_mtx);
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list_for_each_entry(wdev, &dev->netdev_list, list) {
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if (++if_idx < if_start)
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continue;
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if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
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cb->nlh->nlmsg_seq, NLM_F_MULTI,
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wdev->netdev) < 0)
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break;
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}
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mutex_unlock(&dev->devlist_mtx);
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}
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mutex_unlock(&cfg80211_drv_mutex);
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cb->args[0] = wp_idx;
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cb->args[1] = if_idx;
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return skb->len;
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}
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static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
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{
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struct sk_buff *msg;
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struct cfg80211_registered_device *dev;
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struct net_device *netdev;
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int err;
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err = get_drv_dev_by_info_ifindex(info, &dev, &netdev);
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if (err)
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return err;
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msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
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if (!msg)
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goto out_err;
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if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
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goto out_free;
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dev_put(netdev);
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cfg80211_put_dev(dev);
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return genlmsg_unicast(msg, info->snd_pid);
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out_free:
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nlmsg_free(msg);
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out_err:
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dev_put(netdev);
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cfg80211_put_dev(dev);
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return -ENOBUFS;
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}
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static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
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[NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
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[NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
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[NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
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[NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
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[NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
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};
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static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
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{
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struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
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int flag;
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*mntrflags = 0;
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if (!nla)
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return -EINVAL;
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|
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if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
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nla, mntr_flags_policy))
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return -EINVAL;
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for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
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if (flags[flag])
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*mntrflags |= (1<<flag);
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return 0;
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}
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|
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static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
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{
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struct cfg80211_registered_device *drv;
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struct vif_params params;
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int err, ifindex;
|
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enum nl80211_iftype type;
|
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struct net_device *dev;
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u32 flags;
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memset(¶ms, 0, sizeof(params));
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if (info->attrs[NL80211_ATTR_IFTYPE]) {
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type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
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if (type > NL80211_IFTYPE_MAX)
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return -EINVAL;
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} else
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return -EINVAL;
|
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|
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err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
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if (err)
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return err;
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ifindex = dev->ifindex;
|
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dev_put(dev);
|
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|
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if (!drv->ops->change_virtual_intf) {
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err = -EOPNOTSUPP;
|
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goto unlock;
|
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}
|
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|
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if (type == NL80211_IFTYPE_MESH_POINT &&
|
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info->attrs[NL80211_ATTR_MESH_ID]) {
|
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params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
|
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params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
|
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}
|
|
|
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rtnl_lock();
|
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err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
|
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info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
|
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&flags);
|
|
err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
|
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type, err ? NULL : &flags, ¶ms);
|
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rtnl_unlock();
|
|
|
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unlock:
|
|
cfg80211_put_dev(drv);
|
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return err;
|
|
}
|
|
|
|
static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
|
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{
|
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struct cfg80211_registered_device *drv;
|
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struct vif_params params;
|
|
int err;
|
|
enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
|
|
u32 flags;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (!info->attrs[NL80211_ATTR_IFNAME])
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_IFTYPE]) {
|
|
type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
|
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if (type > NL80211_IFTYPE_MAX)
|
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return -EINVAL;
|
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}
|
|
|
|
drv = cfg80211_get_dev_from_info(info);
|
|
if (IS_ERR(drv))
|
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return PTR_ERR(drv);
|
|
|
|
if (!drv->ops->add_virtual_intf) {
|
|
err = -EOPNOTSUPP;
|
|
goto unlock;
|
|
}
|
|
|
|
if (type == NL80211_IFTYPE_MESH_POINT &&
|
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info->attrs[NL80211_ATTR_MESH_ID]) {
|
|
params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
|
|
params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
|
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}
|
|
|
|
rtnl_lock();
|
|
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
|
|
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
|
|
&flags);
|
|
err = drv->ops->add_virtual_intf(&drv->wiphy,
|
|
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
|
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type, err ? NULL : &flags, ¶ms);
|
|
rtnl_unlock();
|
|
|
|
|
|
unlock:
|
|
cfg80211_put_dev(drv);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int ifindex, err;
|
|
struct net_device *dev;
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
ifindex = dev->ifindex;
|
|
dev_put(dev);
|
|
|
|
if (!drv->ops->del_virtual_intf) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
return err;
|
|
}
|
|
|
|
struct get_key_cookie {
|
|
struct sk_buff *msg;
|
|
int error;
|
|
};
|
|
|
|
static void get_key_callback(void *c, struct key_params *params)
|
|
{
|
|
struct get_key_cookie *cookie = c;
|
|
|
|
if (params->key)
|
|
NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
|
|
params->key_len, params->key);
|
|
|
|
if (params->seq)
|
|
NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
|
|
params->seq_len, params->seq);
|
|
|
|
if (params->cipher)
|
|
NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
|
|
params->cipher);
|
|
|
|
return;
|
|
nla_put_failure:
|
|
cookie->error = 1;
|
|
}
|
|
|
|
static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
u8 key_idx = 0;
|
|
u8 *mac_addr = NULL;
|
|
struct get_key_cookie cookie = {
|
|
.error = 0,
|
|
};
|
|
void *hdr;
|
|
struct sk_buff *msg;
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_IDX])
|
|
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
|
|
|
|
if (key_idx > 3)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->get_key) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
|
|
if (!msg) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
|
|
NL80211_CMD_NEW_KEY);
|
|
|
|
if (IS_ERR(hdr)) {
|
|
err = PTR_ERR(hdr);
|
|
goto out;
|
|
}
|
|
|
|
cookie.msg = msg;
|
|
|
|
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
|
|
NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
|
|
if (mac_addr)
|
|
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
|
|
&cookie, get_key_callback);
|
|
rtnl_unlock();
|
|
|
|
if (err)
|
|
goto out;
|
|
|
|
if (cookie.error)
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
err = genlmsg_unicast(msg, info->snd_pid);
|
|
goto out;
|
|
|
|
nla_put_failure:
|
|
err = -ENOBUFS;
|
|
nlmsg_free(msg);
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
u8 key_idx;
|
|
|
|
if (!info->attrs[NL80211_ATTR_KEY_IDX])
|
|
return -EINVAL;
|
|
|
|
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
|
|
|
|
if (key_idx > 3)
|
|
return -EINVAL;
|
|
|
|
/* currently only support setting default key */
|
|
if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
|
|
return -EINVAL;
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->set_default_key) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
struct key_params params;
|
|
u8 key_idx = 0;
|
|
u8 *mac_addr = NULL;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_DATA]) {
|
|
params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
|
|
params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_IDX])
|
|
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
|
|
|
|
params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (key_idx > 3)
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* Disallow pairwise keys with non-zero index unless it's WEP
|
|
* (because current deployments use pairwise WEP keys with
|
|
* non-zero indizes but 802.11i clearly specifies to use zero)
|
|
*/
|
|
if (mac_addr && key_idx &&
|
|
params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
|
|
params.cipher != WLAN_CIPHER_SUITE_WEP104)
|
|
return -EINVAL;
|
|
|
|
/* TODO: add definitions for the lengths to linux/ieee80211.h */
|
|
switch (params.cipher) {
|
|
case WLAN_CIPHER_SUITE_WEP40:
|
|
if (params.key_len != 5)
|
|
return -EINVAL;
|
|
break;
|
|
case WLAN_CIPHER_SUITE_TKIP:
|
|
if (params.key_len != 32)
|
|
return -EINVAL;
|
|
break;
|
|
case WLAN_CIPHER_SUITE_CCMP:
|
|
if (params.key_len != 16)
|
|
return -EINVAL;
|
|
break;
|
|
case WLAN_CIPHER_SUITE_WEP104:
|
|
if (params.key_len != 13)
|
|
return -EINVAL;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->add_key) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
u8 key_idx = 0;
|
|
u8 *mac_addr = NULL;
|
|
|
|
if (info->attrs[NL80211_ATTR_KEY_IDX])
|
|
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
|
|
|
|
if (key_idx > 3)
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->del_key) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
int (*call)(struct wiphy *wiphy, struct net_device *dev,
|
|
struct beacon_parameters *info);
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
struct beacon_parameters params;
|
|
int haveinfo = 0;
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
switch (info->genlhdr->cmd) {
|
|
case NL80211_CMD_NEW_BEACON:
|
|
/* these are required for NEW_BEACON */
|
|
if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
|
|
!info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
|
|
!info->attrs[NL80211_ATTR_BEACON_HEAD]) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
call = drv->ops->add_beacon;
|
|
break;
|
|
case NL80211_CMD_SET_BEACON:
|
|
call = drv->ops->set_beacon;
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
if (!call) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
|
|
params.interval =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
|
|
haveinfo = 1;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
|
|
params.dtim_period =
|
|
nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
|
|
haveinfo = 1;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
|
|
params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
|
|
params.head_len =
|
|
nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
|
|
haveinfo = 1;
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
|
|
params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
|
|
params.tail_len =
|
|
nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
|
|
haveinfo = 1;
|
|
}
|
|
|
|
if (!haveinfo) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = call(&drv->wiphy, dev, ¶ms);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->del_beacon) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->del_beacon(&drv->wiphy, dev);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
|
|
[NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
|
|
[NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
|
|
[NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
|
|
};
|
|
|
|
static int parse_station_flags(struct nlattr *nla, u32 *staflags)
|
|
{
|
|
struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
|
|
int flag;
|
|
|
|
*staflags = 0;
|
|
|
|
if (!nla)
|
|
return 0;
|
|
|
|
if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
|
|
nla, sta_flags_policy))
|
|
return -EINVAL;
|
|
|
|
*staflags = STATION_FLAG_CHANGED;
|
|
|
|
for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
|
|
if (flags[flag])
|
|
*staflags |= (1<<flag);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
|
|
int flags, struct net_device *dev,
|
|
u8 *mac_addr, struct station_info *sinfo)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *sinfoattr;
|
|
|
|
hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
|
|
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
|
|
|
|
sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
|
|
if (!sinfoattr)
|
|
goto nla_put_failure;
|
|
if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
|
|
NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
|
|
sinfo->inactive_time);
|
|
if (sinfo->filled & STATION_INFO_RX_BYTES)
|
|
NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
|
|
sinfo->rx_bytes);
|
|
if (sinfo->filled & STATION_INFO_TX_BYTES)
|
|
NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
|
|
sinfo->tx_bytes);
|
|
if (sinfo->filled & STATION_INFO_LLID)
|
|
NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
|
|
sinfo->llid);
|
|
if (sinfo->filled & STATION_INFO_PLID)
|
|
NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
|
|
sinfo->plid);
|
|
if (sinfo->filled & STATION_INFO_PLINK_STATE)
|
|
NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
|
|
sinfo->plink_state);
|
|
|
|
nla_nest_end(msg, sinfoattr);
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
nla_put_failure:
|
|
return genlmsg_cancel(msg, hdr);
|
|
}
|
|
|
|
static int nl80211_dump_station(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
int wp_idx = 0;
|
|
int if_idx = 0;
|
|
int sta_idx = cb->args[2];
|
|
int wp_start = cb->args[0];
|
|
int if_start = cb->args[1];
|
|
struct station_info sinfo;
|
|
struct cfg80211_registered_device *dev;
|
|
struct wireless_dev *wdev;
|
|
u8 mac_addr[ETH_ALEN];
|
|
int err;
|
|
int exit = 0;
|
|
|
|
/* TODO: filter by device */
|
|
mutex_lock(&cfg80211_drv_mutex);
|
|
list_for_each_entry(dev, &cfg80211_drv_list, list) {
|
|
if (exit)
|
|
break;
|
|
if (++wp_idx < wp_start)
|
|
continue;
|
|
if_idx = 0;
|
|
|
|
mutex_lock(&dev->devlist_mtx);
|
|
list_for_each_entry(wdev, &dev->netdev_list, list) {
|
|
if (exit)
|
|
break;
|
|
if (++if_idx < if_start)
|
|
continue;
|
|
if (!dev->ops->dump_station)
|
|
continue;
|
|
|
|
for (;; ++sta_idx) {
|
|
rtnl_lock();
|
|
err = dev->ops->dump_station(&dev->wiphy,
|
|
wdev->netdev, sta_idx, mac_addr,
|
|
&sinfo);
|
|
rtnl_unlock();
|
|
if (err) {
|
|
sta_idx = 0;
|
|
break;
|
|
}
|
|
if (nl80211_send_station(skb,
|
|
NETLINK_CB(cb->skb).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
wdev->netdev, mac_addr,
|
|
&sinfo) < 0) {
|
|
exit = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
mutex_unlock(&dev->devlist_mtx);
|
|
}
|
|
mutex_unlock(&cfg80211_drv_mutex);
|
|
|
|
cb->args[0] = wp_idx;
|
|
cb->args[1] = if_idx;
|
|
cb->args[2] = sta_idx;
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
struct station_info sinfo;
|
|
struct sk_buff *msg;
|
|
u8 *mac_addr = NULL;
|
|
|
|
memset(&sinfo, 0, sizeof(sinfo));
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->get_station) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
|
|
rtnl_unlock();
|
|
|
|
if (err)
|
|
goto out;
|
|
|
|
msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
goto out;
|
|
|
|
if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
|
|
dev, mac_addr, &sinfo) < 0)
|
|
goto out_free;
|
|
|
|
err = genlmsg_unicast(msg, info->snd_pid);
|
|
goto out;
|
|
|
|
out_free:
|
|
nlmsg_free(msg);
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* Get vlan interface making sure it is on the right wiphy.
|
|
*/
|
|
static int get_vlan(struct nlattr *vlanattr,
|
|
struct cfg80211_registered_device *rdev,
|
|
struct net_device **vlan)
|
|
{
|
|
*vlan = NULL;
|
|
|
|
if (vlanattr) {
|
|
*vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
|
|
if (!*vlan)
|
|
return -ENODEV;
|
|
if (!(*vlan)->ieee80211_ptr)
|
|
return -EINVAL;
|
|
if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
struct station_parameters params;
|
|
u8 *mac_addr = NULL;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
params.listen_interval = -1;
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_AID])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
|
|
params.supported_rates =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
params.supported_rates_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
}
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
|
|
params.listen_interval =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
|
|
|
|
if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
|
|
¶ms.station_flags))
|
|
return -EINVAL;
|
|
|
|
if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
|
|
params.plink_action =
|
|
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
|
|
if (err)
|
|
goto out;
|
|
|
|
if (!drv->ops->change_station) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
if (params.vlan)
|
|
dev_put(params.vlan);
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
struct station_parameters params;
|
|
u8 *mac_addr = NULL;
|
|
|
|
memset(¶ms, 0, sizeof(params));
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_STA_AID])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
|
|
return -EINVAL;
|
|
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
params.supported_rates =
|
|
nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
params.supported_rates_len =
|
|
nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
|
|
params.listen_interval =
|
|
nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
|
|
params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
|
|
|
|
if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
|
|
¶ms.station_flags))
|
|
return -EINVAL;
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
|
|
if (err)
|
|
goto out;
|
|
|
|
if (!drv->ops->add_station) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
if (params.vlan)
|
|
dev_put(params.vlan);
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
u8 *mac_addr = NULL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->del_station) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
|
|
int flags, struct net_device *dev,
|
|
u8 *dst, u8 *next_hop,
|
|
struct mpath_info *pinfo)
|
|
{
|
|
void *hdr;
|
|
struct nlattr *pinfoattr;
|
|
|
|
hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
|
|
if (!hdr)
|
|
return -1;
|
|
|
|
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
|
|
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
|
|
NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
|
|
|
|
pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
|
|
if (!pinfoattr)
|
|
goto nla_put_failure;
|
|
if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
|
|
NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
|
|
pinfo->frame_qlen);
|
|
if (pinfo->filled & MPATH_INFO_DSN)
|
|
NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
|
|
pinfo->dsn);
|
|
if (pinfo->filled & MPATH_INFO_METRIC)
|
|
NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
|
|
pinfo->metric);
|
|
if (pinfo->filled & MPATH_INFO_EXPTIME)
|
|
NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
|
|
pinfo->exptime);
|
|
if (pinfo->filled & MPATH_INFO_FLAGS)
|
|
NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
|
|
pinfo->flags);
|
|
if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
|
|
NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
|
|
pinfo->discovery_timeout);
|
|
if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
|
|
NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
|
|
pinfo->discovery_retries);
|
|
|
|
nla_nest_end(msg, pinfoattr);
|
|
|
|
return genlmsg_end(msg, hdr);
|
|
|
|
nla_put_failure:
|
|
return genlmsg_cancel(msg, hdr);
|
|
}
|
|
|
|
static int nl80211_dump_mpath(struct sk_buff *skb,
|
|
struct netlink_callback *cb)
|
|
{
|
|
int wp_idx = 0;
|
|
int if_idx = 0;
|
|
int sta_idx = cb->args[2];
|
|
int wp_start = cb->args[0];
|
|
int if_start = cb->args[1];
|
|
struct mpath_info pinfo;
|
|
struct cfg80211_registered_device *dev;
|
|
struct wireless_dev *wdev;
|
|
u8 dst[ETH_ALEN];
|
|
u8 next_hop[ETH_ALEN];
|
|
int err;
|
|
int exit = 0;
|
|
|
|
/* TODO: filter by device */
|
|
mutex_lock(&cfg80211_drv_mutex);
|
|
list_for_each_entry(dev, &cfg80211_drv_list, list) {
|
|
if (exit)
|
|
break;
|
|
if (++wp_idx < wp_start)
|
|
continue;
|
|
if_idx = 0;
|
|
|
|
mutex_lock(&dev->devlist_mtx);
|
|
list_for_each_entry(wdev, &dev->netdev_list, list) {
|
|
if (exit)
|
|
break;
|
|
if (++if_idx < if_start)
|
|
continue;
|
|
if (!dev->ops->dump_mpath)
|
|
continue;
|
|
|
|
for (;; ++sta_idx) {
|
|
rtnl_lock();
|
|
err = dev->ops->dump_mpath(&dev->wiphy,
|
|
wdev->netdev, sta_idx, dst,
|
|
next_hop, &pinfo);
|
|
rtnl_unlock();
|
|
if (err) {
|
|
sta_idx = 0;
|
|
break;
|
|
}
|
|
if (nl80211_send_mpath(skb,
|
|
NETLINK_CB(cb->skb).pid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI,
|
|
wdev->netdev, dst, next_hop,
|
|
&pinfo) < 0) {
|
|
exit = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
mutex_unlock(&dev->devlist_mtx);
|
|
}
|
|
mutex_unlock(&cfg80211_drv_mutex);
|
|
|
|
cb->args[0] = wp_idx;
|
|
cb->args[1] = if_idx;
|
|
cb->args[2] = sta_idx;
|
|
|
|
return skb->len;
|
|
}
|
|
|
|
static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
struct mpath_info pinfo;
|
|
struct sk_buff *msg;
|
|
u8 *dst = NULL;
|
|
u8 next_hop[ETH_ALEN];
|
|
|
|
memset(&pinfo, 0, sizeof(pinfo));
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->get_mpath) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
|
|
rtnl_unlock();
|
|
|
|
if (err)
|
|
goto out;
|
|
|
|
msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
goto out;
|
|
|
|
if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
|
|
dev, dst, next_hop, &pinfo) < 0)
|
|
goto out_free;
|
|
|
|
err = genlmsg_unicast(msg, info->snd_pid);
|
|
goto out;
|
|
|
|
out_free:
|
|
nlmsg_free(msg);
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
u8 *dst = NULL;
|
|
u8 *next_hop = NULL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
|
|
return -EINVAL;
|
|
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->change_mpath) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
u8 *dst = NULL;
|
|
u8 *next_hop = NULL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MAC])
|
|
return -EINVAL;
|
|
|
|
if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
|
|
return -EINVAL;
|
|
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->add_mpath) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct cfg80211_registered_device *drv;
|
|
int err;
|
|
struct net_device *dev;
|
|
u8 *dst = NULL;
|
|
|
|
if (info->attrs[NL80211_ATTR_MAC])
|
|
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
|
|
|
|
err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!drv->ops->del_mpath) {
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
rtnl_lock();
|
|
err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
|
|
rtnl_unlock();
|
|
|
|
out:
|
|
cfg80211_put_dev(drv);
|
|
dev_put(dev);
|
|
return err;
|
|
}
|
|
|
|
static struct genl_ops nl80211_ops[] = {
|
|
{
|
|
.cmd = NL80211_CMD_GET_WIPHY,
|
|
.doit = nl80211_get_wiphy,
|
|
.dumpit = nl80211_dump_wiphy,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_WIPHY,
|
|
.doit = nl80211_set_wiphy,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_INTERFACE,
|
|
.doit = nl80211_get_interface,
|
|
.dumpit = nl80211_dump_interface,
|
|
.policy = nl80211_policy,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_INTERFACE,
|
|
.doit = nl80211_set_interface,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_INTERFACE,
|
|
.doit = nl80211_new_interface,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_INTERFACE,
|
|
.doit = nl80211_del_interface,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_KEY,
|
|
.doit = nl80211_get_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_KEY,
|
|
.doit = nl80211_set_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_KEY,
|
|
.doit = nl80211_new_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_KEY,
|
|
.doit = nl80211_del_key,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_BEACON,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.doit = nl80211_addset_beacon,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_BEACON,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.doit = nl80211_addset_beacon,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_BEACON,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.doit = nl80211_del_beacon,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_STATION,
|
|
.doit = nl80211_get_station,
|
|
.dumpit = nl80211_dump_station,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_STATION,
|
|
.doit = nl80211_set_station,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_STATION,
|
|
.doit = nl80211_new_station,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_STATION,
|
|
.doit = nl80211_del_station,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_GET_MPATH,
|
|
.doit = nl80211_get_mpath,
|
|
.dumpit = nl80211_dump_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_SET_MPATH,
|
|
.doit = nl80211_set_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_NEW_MPATH,
|
|
.doit = nl80211_new_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
{
|
|
.cmd = NL80211_CMD_DEL_MPATH,
|
|
.doit = nl80211_del_mpath,
|
|
.policy = nl80211_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
},
|
|
};
|
|
|
|
/* multicast groups */
|
|
static struct genl_multicast_group nl80211_config_mcgrp = {
|
|
.name = "config",
|
|
};
|
|
|
|
/* notification functions */
|
|
|
|
void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
|
|
{
|
|
struct sk_buff *msg;
|
|
|
|
msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
|
|
}
|
|
|
|
/* initialisation/exit functions */
|
|
|
|
int nl80211_init(void)
|
|
{
|
|
int err, i;
|
|
|
|
err = genl_register_family(&nl80211_fam);
|
|
if (err)
|
|
return err;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
|
|
err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
|
|
if (err)
|
|
goto err_out;
|
|
}
|
|
|
|
err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
return 0;
|
|
err_out:
|
|
genl_unregister_family(&nl80211_fam);
|
|
return err;
|
|
}
|
|
|
|
void nl80211_exit(void)
|
|
{
|
|
genl_unregister_family(&nl80211_fam);
|
|
}
|