mac80211: replace "destination" with "target" to follow the spec
Resulting object files have the same MD5 as before.
Signed-off-by: Rui Paulo <rpaulo@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Reviewed-by: Andrey Yurovsky <andrey@cozybit.com>
Tested-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 7d36f3a..f03a27d 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -56,33 +56,33 @@
#define PREQ_IE_TTL(x) (*(x + 2))
#define PREQ_IE_PREQ_ID(x) u32_field_get(x, 3, 0)
#define PREQ_IE_ORIG_ADDR(x) (x + 7)
-#define PREQ_IE_ORIG_DSN(x) u32_field_get(x, 13, 0);
+#define PREQ_IE_ORIG_SN(x) u32_field_get(x, 13, 0);
#define PREQ_IE_LIFETIME(x) u32_field_get(x, 17, AE_F_SET(x));
#define PREQ_IE_METRIC(x) u32_field_get(x, 21, AE_F_SET(x));
-#define PREQ_IE_DST_F(x) (*(AE_F_SET(x) ? x + 32 : x + 26))
-#define PREQ_IE_DST_ADDR(x) (AE_F_SET(x) ? x + 33 : x + 27)
-#define PREQ_IE_DST_DSN(x) u32_field_get(x, 33, AE_F_SET(x));
+#define PREQ_IE_TARGET_F(x) (*(AE_F_SET(x) ? x + 32 : x + 26))
+#define PREQ_IE_TARGET_ADDR(x) (AE_F_SET(x) ? x + 33 : x + 27)
+#define PREQ_IE_TARGET_SN(x) u32_field_get(x, 33, AE_F_SET(x));
#define PREP_IE_FLAGS(x) PREQ_IE_FLAGS(x)
#define PREP_IE_HOPCOUNT(x) PREQ_IE_HOPCOUNT(x)
#define PREP_IE_TTL(x) PREQ_IE_TTL(x)
#define PREP_IE_ORIG_ADDR(x) (x + 3)
-#define PREP_IE_ORIG_DSN(x) u32_field_get(x, 9, 0);
+#define PREP_IE_ORIG_SN(x) u32_field_get(x, 9, 0);
#define PREP_IE_LIFETIME(x) u32_field_get(x, 13, AE_F_SET(x));
#define PREP_IE_METRIC(x) u32_field_get(x, 17, AE_F_SET(x));
-#define PREP_IE_DST_ADDR(x) (AE_F_SET(x) ? x + 27 : x + 21)
-#define PREP_IE_DST_DSN(x) u32_field_get(x, 27, AE_F_SET(x));
+#define PREP_IE_TARGET_ADDR(x) (AE_F_SET(x) ? x + 27 : x + 21)
+#define PREP_IE_TARGET_SN(x) u32_field_get(x, 27, AE_F_SET(x));
#define PERR_IE_TTL(x) (*(x))
-#define PERR_IE_DST_FLAGS(x) (*(x + 2))
-#define PERR_IE_DST_ADDR(x) (x + 3)
-#define PERR_IE_DST_DSN(x) u32_field_get(x, 9, 0);
-#define PERR_IE_DST_RCODE(x) u16_field_get(x, 13, 0);
+#define PERR_IE_TARGET_FLAGS(x) (*(x + 2))
+#define PERR_IE_TARGET_ADDR(x) (x + 3)
+#define PERR_IE_TARGET_SN(x) u32_field_get(x, 9, 0);
+#define PERR_IE_TARGET_RCODE(x) u16_field_get(x, 13, 0);
#define MSEC_TO_TU(x) (x*1000/1024)
-#define DSN_GT(x, y) ((long) (y) - (long) (x) < 0)
-#define DSN_LT(x, y) ((long) (x) - (long) (y) < 0)
+#define SN_GT(x, y) ((long) (y) - (long) (x) < 0)
+#define SN_LT(x, y) ((long) (x) - (long) (y) < 0)
#define net_traversal_jiffies(s) \
msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime)
@@ -102,9 +102,10 @@
};
static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
- u8 *orig_addr, __le32 orig_dsn, u8 dst_flags, u8 *dst,
- __le32 dst_dsn, u8 *da, u8 hop_count, u8 ttl, __le32 lifetime,
- __le32 metric, __le32 preq_id, struct ieee80211_sub_if_data *sdata)
+ u8 *orig_addr, __le32 orig_sn, u8 target_flags, u8 *target,
+ __le32 target_sn, u8 *da, u8 hop_count, u8 ttl,__le32 lifetime,
+ __le32 metric, __le32 preq_id,
+ struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
@@ -133,13 +134,13 @@
switch (action) {
case MPATH_PREQ:
- mhwmp_dbg("sending PREQ to %pM\n", dst);
+ mhwmp_dbg("sending PREQ to %pM\n", target);
ie_len = 37;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PREQ;
break;
case MPATH_PREP:
- mhwmp_dbg("sending PREP to %pM\n", dst);
+ mhwmp_dbg("sending PREP to %pM\n", target);
ie_len = 31;
pos = skb_put(skb, 2 + ie_len);
*pos++ = WLAN_EID_PREP;
@@ -165,7 +166,7 @@
}
memcpy(pos, orig_addr, ETH_ALEN);
pos += ETH_ALEN;
- memcpy(pos, &orig_dsn, 4);
+ memcpy(pos, &orig_sn, 4);
pos += 4;
if (action != MPATH_RANN) {
memcpy(pos, &lifetime, 4);
@@ -176,12 +177,12 @@
if (action == MPATH_PREQ) {
/* destination count */
*pos++ = 1;
- *pos++ = dst_flags;
+ *pos++ = target_flags;
}
if (action != MPATH_RANN) {
- memcpy(pos, dst, ETH_ALEN);
+ memcpy(pos, target, ETH_ALEN);
pos += ETH_ALEN;
- memcpy(pos, &dst_dsn, 4);
+ memcpy(pos, &target_sn, 4);
}
ieee80211_tx_skb(sdata, skb, 1);
@@ -191,12 +192,14 @@
/**
* mesh_send_path error - Sends a PERR mesh management frame
*
- * @dst: broken destination
- * @dst_dsn: dsn of the broken destination
+ * @target: broken destination
+ * @target_sn: SN of the broken destination
+ * @target_rcode: reason code for this PERR
* @ra: node this frame is addressed to
*/
-int mesh_path_error_tx(u8 ttl, u8 *dst, __le32 dst_dsn, __le16 dst_rcode,
- u8 *ra, struct ieee80211_sub_if_data *sdata)
+int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
+ __le16 target_rcode, u8 *ra,
+ struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
@@ -234,16 +237,16 @@
* bit 2 is set if we have a reason code
*/
*pos = 0;
- if (!dst_dsn)
+ if (!target_sn)
*pos |= MP_F_USN;
- if (dst_rcode)
+ if (target_rcode)
*pos |= MP_F_RCODE;
pos++;
- memcpy(pos, dst, ETH_ALEN);
+ memcpy(pos, target, ETH_ALEN);
pos += ETH_ALEN;
- memcpy(pos, &dst_dsn, 4);
+ memcpy(pos, &target_sn, 4);
pos += 4;
- memcpy(pos, &dst_rcode, 2);
+ memcpy(pos, &target_rcode, 2);
ieee80211_tx_skb(sdata, skb, 1);
return 0;
@@ -324,7 +327,7 @@
struct sta_info *sta;
bool fresh_info;
u8 *orig_addr, *ta;
- u32 orig_dsn, orig_metric;
+ u32 orig_sn, orig_metric;
unsigned long orig_lifetime, exp_time;
u32 last_hop_metric, new_metric;
bool process = true;
@@ -343,7 +346,7 @@
switch (action) {
case MPATH_PREQ:
orig_addr = PREQ_IE_ORIG_ADDR(hwmp_ie);
- orig_dsn = PREQ_IE_ORIG_DSN(hwmp_ie);
+ orig_sn = PREQ_IE_ORIG_SN(hwmp_ie);
orig_lifetime = PREQ_IE_LIFETIME(hwmp_ie);
orig_metric = PREQ_IE_METRIC(hwmp_ie);
break;
@@ -356,7 +359,7 @@
* information from both PREQ and PREP frames.
*/
orig_addr = PREP_IE_ORIG_ADDR(hwmp_ie);
- orig_dsn = PREP_IE_ORIG_DSN(hwmp_ie);
+ orig_sn = PREP_IE_ORIG_SN(hwmp_ie);
orig_lifetime = PREP_IE_LIFETIME(hwmp_ie);
orig_metric = PREP_IE_METRIC(hwmp_ie);
break;
@@ -382,9 +385,9 @@
if (mpath->flags & MESH_PATH_FIXED)
fresh_info = false;
else if ((mpath->flags & MESH_PATH_ACTIVE) &&
- (mpath->flags & MESH_PATH_DSN_VALID)) {
- if (DSN_GT(mpath->dsn, orig_dsn) ||
- (mpath->dsn == orig_dsn &&
+ (mpath->flags & MESH_PATH_SN_VALID)) {
+ if (SN_GT(mpath->sn, orig_sn) ||
+ (mpath->sn == orig_sn &&
action == MPATH_PREQ &&
new_metric > mpath->metric)) {
process = false;
@@ -403,9 +406,9 @@
if (fresh_info) {
mesh_path_assign_nexthop(mpath, sta);
- mpath->flags |= MESH_PATH_DSN_VALID;
+ mpath->flags |= MESH_PATH_SN_VALID;
mpath->metric = new_metric;
- mpath->dsn = orig_dsn;
+ mpath->sn = orig_sn;
mpath->exp_time = time_after(mpath->exp_time, exp_time)
? mpath->exp_time : exp_time;
mesh_path_activate(mpath);
@@ -444,7 +447,7 @@
if (fresh_info) {
mesh_path_assign_nexthop(mpath, sta);
- mpath->flags &= ~MESH_PATH_DSN_VALID;
+ mpath->flags &= ~MESH_PATH_SN_VALID;
mpath->metric = last_hop_metric;
mpath->exp_time = time_after(mpath->exp_time, exp_time)
? mpath->exp_time : exp_time;
@@ -466,47 +469,47 @@
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_path *mpath;
- u8 *dst_addr, *orig_addr;
- u8 dst_flags, ttl;
- u32 orig_dsn, dst_dsn, lifetime;
+ u8 *target_addr, *orig_addr;
+ u8 target_flags, ttl;
+ u32 orig_sn, target_sn, lifetime;
bool reply = false;
bool forward = true;
- /* Update destination DSN, if present */
- dst_addr = PREQ_IE_DST_ADDR(preq_elem);
+ /* Update target SN, if present */
+ target_addr = PREQ_IE_TARGET_ADDR(preq_elem);
orig_addr = PREQ_IE_ORIG_ADDR(preq_elem);
- dst_dsn = PREQ_IE_DST_DSN(preq_elem);
- orig_dsn = PREQ_IE_ORIG_DSN(preq_elem);
- dst_flags = PREQ_IE_DST_F(preq_elem);
+ target_sn = PREQ_IE_TARGET_SN(preq_elem);
+ orig_sn = PREQ_IE_ORIG_SN(preq_elem);
+ target_flags = PREQ_IE_TARGET_F(preq_elem);
mhwmp_dbg("received PREQ from %pM\n", orig_addr);
- if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
+ if (memcmp(target_addr, sdata->dev->dev_addr, ETH_ALEN) == 0) {
mhwmp_dbg("PREQ is for us\n");
forward = false;
reply = true;
metric = 0;
- if (time_after(jiffies, ifmsh->last_dsn_update +
+ if (time_after(jiffies, ifmsh->last_sn_update +
net_traversal_jiffies(sdata)) ||
- time_before(jiffies, ifmsh->last_dsn_update)) {
- dst_dsn = ++ifmsh->dsn;
- ifmsh->last_dsn_update = jiffies;
+ time_before(jiffies, ifmsh->last_sn_update)) {
+ target_sn = ++ifmsh->sn;
+ ifmsh->last_sn_update = jiffies;
}
} else {
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, sdata);
+ mpath = mesh_path_lookup(target_addr, sdata);
if (mpath) {
- if ((!(mpath->flags & MESH_PATH_DSN_VALID)) ||
- DSN_LT(mpath->dsn, dst_dsn)) {
- mpath->dsn = dst_dsn;
- mpath->flags |= MESH_PATH_DSN_VALID;
- } else if ((!(dst_flags & MP_F_DO)) &&
+ if ((!(mpath->flags & MESH_PATH_SN_VALID)) ||
+ SN_LT(mpath->sn, target_sn)) {
+ mpath->sn = target_sn;
+ mpath->flags |= MESH_PATH_SN_VALID;
+ } else if ((!(target_flags & MP_F_DO)) &&
(mpath->flags & MESH_PATH_ACTIVE)) {
reply = true;
metric = mpath->metric;
- dst_dsn = mpath->dsn;
- if (dst_flags & MP_F_RF)
- dst_flags |= MP_F_DO;
+ target_sn = mpath->sn;
+ if (target_flags & MP_F_RF)
+ target_flags |= MP_F_DO;
else
forward = false;
}
@@ -519,9 +522,9 @@
ttl = ifmsh->mshcfg.dot11MeshTTL;
if (ttl != 0) {
mhwmp_dbg("replying to the PREQ\n");
- mesh_path_sel_frame_tx(MPATH_PREP, 0, dst_addr,
- cpu_to_le32(dst_dsn), 0, orig_addr,
- cpu_to_le32(orig_dsn), mgmt->sa, 0, ttl,
+ mesh_path_sel_frame_tx(MPATH_PREP, 0, target_addr,
+ cpu_to_le32(target_sn), 0, orig_addr,
+ cpu_to_le32(orig_sn), mgmt->sa, 0, ttl,
cpu_to_le32(lifetime), cpu_to_le32(metric),
0, sdata);
} else
@@ -544,8 +547,8 @@
preq_id = PREQ_IE_PREQ_ID(preq_elem);
hopcount = PREQ_IE_HOPCOUNT(preq_elem) + 1;
mesh_path_sel_frame_tx(MPATH_PREQ, flags, orig_addr,
- cpu_to_le32(orig_dsn), dst_flags, dst_addr,
- cpu_to_le32(dst_dsn), sdata->dev->broadcast,
+ cpu_to_le32(orig_sn), target_flags, target_addr,
+ cpu_to_le32(target_sn), sdata->dev->broadcast,
hopcount, ttl, cpu_to_le32(lifetime),
cpu_to_le32(metric), cpu_to_le32(preq_id),
sdata);
@@ -560,10 +563,10 @@
u8 *prep_elem, u32 metric)
{
struct mesh_path *mpath;
- u8 *dst_addr, *orig_addr;
+ u8 *target_addr, *orig_addr;
u8 ttl, hopcount, flags;
u8 next_hop[ETH_ALEN];
- u32 dst_dsn, orig_dsn, lifetime;
+ u32 target_sn, orig_sn, lifetime;
mhwmp_dbg("received PREP from %pM\n", PREP_IE_ORIG_ADDR(prep_elem));
@@ -573,8 +576,8 @@
* which corresponds with the originator of the PREQ which this PREP
* replies
*/
- dst_addr = PREP_IE_DST_ADDR(prep_elem);
- if (memcmp(dst_addr, sdata->dev->dev_addr, ETH_ALEN) == 0)
+ target_addr = PREP_IE_TARGET_ADDR(prep_elem);
+ if (memcmp(target_addr, sdata->dev->dev_addr, ETH_ALEN) == 0)
/* destination, no forwarding required */
return;
@@ -585,7 +588,7 @@
}
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, sdata);
+ mpath = mesh_path_lookup(target_addr, sdata);
if (mpath)
spin_lock_bh(&mpath->state_lock);
else
@@ -601,13 +604,13 @@
lifetime = PREP_IE_LIFETIME(prep_elem);
hopcount = PREP_IE_HOPCOUNT(prep_elem) + 1;
orig_addr = PREP_IE_ORIG_ADDR(prep_elem);
- dst_dsn = PREP_IE_DST_DSN(prep_elem);
- orig_dsn = PREP_IE_ORIG_DSN(prep_elem);
+ target_sn = PREP_IE_TARGET_SN(prep_elem);
+ orig_sn = PREP_IE_ORIG_SN(prep_elem);
mesh_path_sel_frame_tx(MPATH_PREP, flags, orig_addr,
- cpu_to_le32(orig_dsn), 0, dst_addr,
- cpu_to_le32(dst_dsn), mpath->next_hop->sta.addr, hopcount, ttl,
- cpu_to_le32(lifetime), cpu_to_le32(metric),
+ cpu_to_le32(orig_sn), 0, target_addr,
+ cpu_to_le32(target_sn), mpath->next_hop->sta.addr, hopcount,
+ ttl, cpu_to_le32(lifetime), cpu_to_le32(metric),
0, sdata);
rcu_read_unlock();
@@ -627,10 +630,10 @@
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_path *mpath;
u8 ttl;
- u8 *ta, *dst_addr;
- u8 dst_flags;
- u32 dst_dsn;
- u16 dst_rcode;
+ u8 *ta, *target_addr;
+ u8 target_flags;
+ u32 target_sn;
+ u16 target_rcode;
ta = mgmt->sa;
ttl = PERR_IE_TTL(perr_elem);
@@ -639,24 +642,24 @@
return;
}
ttl--;
- dst_flags = PERR_IE_DST_FLAGS(perr_elem);
- dst_addr = PERR_IE_DST_ADDR(perr_elem);
- dst_dsn = PERR_IE_DST_DSN(perr_elem);
- dst_rcode = PERR_IE_DST_RCODE(perr_elem);
+ target_flags = PERR_IE_TARGET_FLAGS(perr_elem);
+ target_addr = PERR_IE_TARGET_ADDR(perr_elem);
+ target_sn = PERR_IE_TARGET_SN(perr_elem);
+ target_rcode = PERR_IE_TARGET_RCODE(perr_elem);
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, sdata);
+ mpath = mesh_path_lookup(target_addr, sdata);
if (mpath) {
spin_lock_bh(&mpath->state_lock);
if (mpath->flags & MESH_PATH_ACTIVE &&
memcmp(ta, mpath->next_hop->sta.addr, ETH_ALEN) == 0 &&
- (!(mpath->flags & MESH_PATH_DSN_VALID) ||
- DSN_GT(dst_dsn, mpath->dsn))) {
+ (!(mpath->flags & MESH_PATH_SN_VALID) ||
+ SN_GT(target_sn, mpath->sn))) {
mpath->flags &= ~MESH_PATH_ACTIVE;
- mpath->dsn = dst_dsn;
+ mpath->sn = target_sn;
spin_unlock_bh(&mpath->state_lock);
- mesh_path_error_tx(ttl, dst_addr, cpu_to_le32(dst_dsn),
- cpu_to_le16(dst_rcode),
+ mesh_path_error_tx(ttl, target_addr, cpu_to_le32(target_sn),
+ cpu_to_le16(target_rcode),
sdata->dev->broadcast, sdata);
} else
spin_unlock_bh(&mpath->state_lock);
@@ -673,7 +676,7 @@
u8 *ta;
u8 ttl, flags, hopcount;
u8 *orig_addr;
- u32 orig_dsn, metric;
+ u32 orig_sn, metric;
ta = mgmt->sa;
ttl = rann->rann_ttl;
@@ -684,7 +687,7 @@
ttl--;
flags = rann->rann_flags;
orig_addr = rann->rann_addr;
- orig_dsn = rann->rann_seq;
+ orig_sn = rann->rann_seq;
hopcount = rann->rann_hopcount;
hopcount++;
metric = rann->rann_metric;
@@ -703,14 +706,14 @@
mesh_queue_preq(mpath,
PREQ_Q_F_START | PREQ_Q_F_REFRESH);
}
- if (mpath->dsn < orig_dsn) {
+ if (mpath->sn < orig_sn) {
mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr,
- cpu_to_le32(orig_dsn),
+ cpu_to_le32(orig_sn),
0, NULL, 0, sdata->dev->broadcast,
hopcount, ttl, 0,
cpu_to_le32(metric + mpath->metric),
0, sdata);
- mpath->dsn = orig_dsn;
+ mpath->sn = orig_sn;
}
rcu_read_unlock();
}
@@ -823,7 +826,7 @@
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_preq_queue *preq_node;
struct mesh_path *mpath;
- u8 ttl, dst_flags;
+ u8 ttl, target_flags;
u32 lifetime;
spin_lock_bh(&ifmsh->mesh_preq_queue_lock);
@@ -865,11 +868,11 @@
ifmsh->last_preq = jiffies;
- if (time_after(jiffies, ifmsh->last_dsn_update +
+ if (time_after(jiffies, ifmsh->last_sn_update +
net_traversal_jiffies(sdata)) ||
- time_before(jiffies, ifmsh->last_dsn_update)) {
- ++ifmsh->dsn;
- sdata->u.mesh.last_dsn_update = jiffies;
+ time_before(jiffies, ifmsh->last_sn_update)) {
+ ++ifmsh->sn;
+ sdata->u.mesh.last_sn_update = jiffies;
}
lifetime = default_lifetime(sdata);
ttl = sdata->u.mesh.mshcfg.dot11MeshTTL;
@@ -880,14 +883,14 @@
}
if (preq_node->flags & PREQ_Q_F_REFRESH)
- dst_flags = MP_F_DO;
+ target_flags = MP_F_DO;
else
- dst_flags = MP_F_RF;
+ target_flags = MP_F_RF;
spin_unlock_bh(&mpath->state_lock);
mesh_path_sel_frame_tx(MPATH_PREQ, 0, sdata->dev->dev_addr,
- cpu_to_le32(ifmsh->dsn), dst_flags, mpath->dst,
- cpu_to_le32(mpath->dsn), sdata->dev->broadcast, 0,
+ cpu_to_le32(ifmsh->sn), target_flags, mpath->dst,
+ cpu_to_le32(mpath->sn), sdata->dev->broadcast, 0,
ttl, cpu_to_le32(lifetime), 0,
cpu_to_le32(ifmsh->preq_id++), sdata);
mod_timer(&mpath->timer, jiffies + mpath->discovery_timeout);
@@ -914,15 +917,15 @@
struct sk_buff *skb_to_free = NULL;
struct mesh_path *mpath;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u8 *dst_addr = hdr->addr3;
+ u8 *target_addr = hdr->addr3;
int err = 0;
rcu_read_lock();
- mpath = mesh_path_lookup(dst_addr, sdata);
+ mpath = mesh_path_lookup(target_addr, sdata);
if (!mpath) {
- mesh_path_add(dst_addr, sdata);
- mpath = mesh_path_lookup(dst_addr, sdata);
+ mesh_path_add(target_addr, sdata);
+ mpath = mesh_path_lookup(target_addr, sdata);
if (!mpath) {
sdata->u.mesh.mshstats.dropped_frames_no_route++;
err = -ENOSPC;