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Merge tag 'mac80211-next-for-davem-2018-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

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Small merge conflict in net/mac80211/scan.c, I preserved
the kcalloc() conversion. -DaveM

Johannes Berg says:

====================
This round's updates:
 * finally some of the promised HE code, but it turns
   out to be small - but everything kept changing, so
   one part I did in the driver was >30 patches for
   what was ultimately <200 lines of code ... similar
   here for this code.
 * improved scan privacy support - can now specify scan
   flags for randomizing the sequence number as well as
   reducing the probe request element content
 * rfkill cleanups
 * a timekeeping cleanup from Arnd
 * various other cleanups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2018-06-30 21:08:12 +09:00
parent a1be5a20f1 a421775058
commit 8365da2c05
38 changed files with 1939 additions and 249 deletions
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159
net/mac80211/util.c
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@@ -1095,6 +1095,21 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
if (elen >= sizeof(*elems->max_idle_period_ie))
elems->max_idle_period_ie = (void *)pos;
break;
case WLAN_EID_EXTENSION:
if (pos[0] == WLAN_EID_EXT_HE_MU_EDCA &&
elen >= (sizeof(*elems->mu_edca_param_set) + 1)) {
elems->mu_edca_param_set = (void *)&pos[1];
} else if (pos[0] == WLAN_EID_EXT_HE_CAPABILITY) {
elems->he_cap = (void *)&pos[1];
elems->he_cap_len = elen - 1;
} else if (pos[0] == WLAN_EID_EXT_HE_OPERATION &&
elen >= sizeof(*elems->he_operation) &&
elen >= ieee80211_he_oper_size(&pos[1])) {
elems->he_operation = (void *)&pos[1];
} else if (pos[0] == WLAN_EID_EXT_UORA && elen >= 1) {
elems->uora_element = (void *)&pos[1];
}
break;
default:
break;
}
@@ -1353,9 +1368,10 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local,
enum nl80211_band band,
u32 rate_mask,
struct cfg80211_chan_def *chandef,
size_t *offset)
size_t *offset, u32 flags)
{
struct ieee80211_supported_band *sband;
const struct ieee80211_sta_he_cap *he_cap;
u8 *pos = buffer, *end = buffer + buffer_len;
size_t noffset;
int supp_rates_len, i;
@@ -1433,6 +1449,9 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local,
chandef->chan->center_freq);
}
if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT)
goto done;
/* insert custom IEs that go before HT */
if (ie && ie_len) {
static const u8 before_ht[] = {
@@ -1460,11 +1479,6 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local,
sband->ht_cap.cap);
}
/*
* If adding more here, adjust code in main.c
* that calculates local->scan_ies_len.
*/
/* insert custom IEs that go before VHT */
if (ie && ie_len) {
static const u8 before_vht[] = {
@@ -1507,9 +1521,43 @@ static int ieee80211_build_preq_ies_band(struct ieee80211_local *local,
sband->vht_cap.cap);
}
/* insert custom IEs that go before HE */
if (ie && ie_len) {
static const u8 before_he[] = {
/*
* no need to list the ones split off before VHT
* or generated here
*/
WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS,
WLAN_EID_AP_CSN,
/* TODO: add 11ah/11aj/11ak elements */
};
noffset = ieee80211_ie_split(ie, ie_len,
before_he, ARRAY_SIZE(before_he),
*offset);
if (end - pos < noffset - *offset)
goto out_err;
memcpy(pos, ie + *offset, noffset - *offset);
pos += noffset - *offset;
*offset = noffset;
}
he_cap = ieee80211_get_he_sta_cap(sband);
if (he_cap) {
pos = ieee80211_ie_build_he_cap(pos, he_cap, end);
if (!pos)
goto out_err;
}
/*
* If adding more here, adjust code in main.c
* that calculates local->scan_ies_len.
*/
return pos - buffer;
out_err:
WARN_ONCE(1, "not enough space for preq IEs\n");
done:
return pos - buffer;
}
@@ -1518,7 +1566,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
struct ieee80211_scan_ies *ie_desc,
const u8 *ie, size_t ie_len,
u8 bands_used, u32 *rate_masks,
struct cfg80211_chan_def *chandef)
struct cfg80211_chan_def *chandef,
u32 flags)
{
size_t pos = 0, old_pos = 0, custom_ie_offset = 0;
int i;
@@ -1533,7 +1582,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
ie, ie_len, i,
rate_masks[i],
chandef,
&custom_ie_offset);
&custom_ie_offset,
flags);
ie_desc->ies[i] = buffer + old_pos;
ie_desc->len[i] = pos - old_pos;
old_pos = pos;
@@ -1561,7 +1611,7 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel *chan,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len,
bool directed)
u32 flags)
{
struct ieee80211_local *local = sdata->local;
struct cfg80211_chan_def chandef;
@@ -1577,7 +1627,7 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
* badly-behaved APs don't respond when this parameter is included.
*/
chandef.width = sdata->vif.bss_conf.chandef.width;
if (directed)
if (flags & IEEE80211_PROBE_FLAG_DIRECTED)
chandef.chan = NULL;
else
chandef.chan = chan;
@@ -1591,7 +1641,7 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
ies_len = ieee80211_build_preq_ies(local, skb_tail_pointer(skb),
skb_tailroom(skb), &dummy_ie_desc,
ie, ie_len, BIT(chan->band),
rate_masks, &chandef);
rate_masks, &chandef, flags);
skb_put(skb, ies_len);
if (dst) {
@@ -1605,27 +1655,6 @@ struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
return skb;
}
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
const u8 *src, const u8 *dst,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len,
u32 ratemask, bool directed, u32 tx_flags,
struct ieee80211_channel *channel, bool scan)
{
struct sk_buff *skb;
skb = ieee80211_build_probe_req(sdata, src, dst, ratemask, channel,
ssid, ssid_len,
ie, ie_len, directed);
if (skb) {
IEEE80211_SKB_CB(skb)->flags |= tx_flags;
if (scan)
ieee80211_tx_skb_tid_band(sdata, skb, 7, channel->band);
else
ieee80211_tx_skb(sdata, skb);
}
}
u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *elems,
enum nl80211_band band, u32 *basic_rates)
@@ -2412,6 +2441,72 @@ u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
return pos;
}
u8 *ieee80211_ie_build_he_cap(u8 *pos,
const struct ieee80211_sta_he_cap *he_cap,
u8 *end)
{
u8 n;
u8 ie_len;
u8 *orig_pos = pos;
/* Make sure we have place for the IE */
/*
* TODO: the 1 added is because this temporarily is under the EXTENSION
* IE. Get rid of it when it moves.
*/
if (!he_cap)
return orig_pos;
n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem);
ie_len = 2 + 1 +
sizeof(he_cap->he_cap_elem) + n +
ieee80211_he_ppe_size(he_cap->ppe_thres[0],
he_cap->he_cap_elem.phy_cap_info);
if ((end - pos) < ie_len)
return orig_pos;
*pos++ = WLAN_EID_EXTENSION;
pos++; /* We'll set the size later below */
*pos++ = WLAN_EID_EXT_HE_CAPABILITY;
/* Fixed data */
memcpy(pos, &he_cap->he_cap_elem, sizeof(he_cap->he_cap_elem));
pos += sizeof(he_cap->he_cap_elem);
memcpy(pos, &he_cap->he_mcs_nss_supp, n);
pos += n;
/* Check if PPE Threshold should be present */
if ((he_cap->he_cap_elem.phy_cap_info[6] &
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
goto end;
/*
* Calculate how many PPET16/PPET8 pairs are to come. Algorithm:
* (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK)
*/
n = hweight8(he_cap->ppe_thres[0] &
IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >>
IEEE80211_PPE_THRES_NSS_POS));
/*
* Each pair is 6 bits, and we need to add the 7 "header" bits to the
* total size.
*/
n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
n = DIV_ROUND_UP(n, 8);
/* Copy PPE Thresholds */
memcpy(pos, &he_cap->ppe_thres, n);
pos += n;
end:
orig_pos[1] = (pos - orig_pos) - 2;
return pos;
}
u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
const struct cfg80211_chan_def *chandef,
u16 prot_mode, bool rifs_mode)