diff options
Diffstat (limited to 'net/batman-adv/gateway_client.c')
-rw-r--r-- | net/batman-adv/gateway_client.c | 125 |
1 files changed, 64 insertions, 61 deletions
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c index 0d90fffd9efb..efe7519f1491 100644 --- a/net/batman-adv/gateway_client.c +++ b/net/batman-adv/gateway_client.c @@ -36,13 +36,13 @@ #define DHCP_OPTIONS_OFFSET 240 #define DHCP_REQUEST 3 -static void gw_node_free_ref(struct gw_node *gw_node) +static void batadv_gw_node_free_ref(struct gw_node *gw_node) { if (atomic_dec_and_test(&gw_node->refcount)) kfree_rcu(gw_node, rcu); } -static struct gw_node *gw_get_selected_gw_node(struct bat_priv *bat_priv) +static struct gw_node *batadv_gw_get_selected_gw_node(struct bat_priv *bat_priv) { struct gw_node *gw_node; @@ -64,7 +64,7 @@ struct orig_node *batadv_gw_get_selected_orig(struct bat_priv *bat_priv) struct gw_node *gw_node; struct orig_node *orig_node = NULL; - gw_node = gw_get_selected_gw_node(bat_priv); + gw_node = batadv_gw_get_selected_gw_node(bat_priv); if (!gw_node) goto out; @@ -80,11 +80,12 @@ unlock: rcu_read_unlock(); out: if (gw_node) - gw_node_free_ref(gw_node); + batadv_gw_node_free_ref(gw_node); return orig_node; } -static void gw_select(struct bat_priv *bat_priv, struct gw_node *new_gw_node) +static void batadv_gw_select(struct bat_priv *bat_priv, + struct gw_node *new_gw_node) { struct gw_node *curr_gw_node; @@ -97,7 +98,7 @@ static void gw_select(struct bat_priv *bat_priv, struct gw_node *new_gw_node) rcu_assign_pointer(bat_priv->curr_gw, new_gw_node); if (curr_gw_node) - gw_node_free_ref(curr_gw_node); + batadv_gw_node_free_ref(curr_gw_node); spin_unlock_bh(&bat_priv->gw_list_lock); } @@ -107,7 +108,7 @@ void batadv_gw_deselect(struct bat_priv *bat_priv) atomic_set(&bat_priv->gw_reselect, 1); } -static struct gw_node *gw_get_best_gw_node(struct bat_priv *bat_priv) +static struct gw_node *batadv_gw_get_best_gw_node(struct bat_priv *bat_priv) { struct neigh_node *router; struct hlist_node *node; @@ -144,7 +145,7 @@ static struct gw_node *gw_get_best_gw_node(struct bat_priv *bat_priv) ((tmp_gw_factor == max_gw_factor) && (router->tq_avg > max_tq))) { if (curr_gw) - gw_node_free_ref(curr_gw); + batadv_gw_node_free_ref(curr_gw); curr_gw = gw_node; atomic_inc(&curr_gw->refcount); } @@ -159,7 +160,7 @@ static struct gw_node *gw_get_best_gw_node(struct bat_priv *bat_priv) */ if (router->tq_avg > max_tq) { if (curr_gw) - gw_node_free_ref(curr_gw); + batadv_gw_node_free_ref(curr_gw); curr_gw = gw_node; atomic_inc(&curr_gw->refcount); } @@ -172,7 +173,7 @@ static struct gw_node *gw_get_best_gw_node(struct bat_priv *bat_priv) if (tmp_gw_factor > max_gw_factor) max_gw_factor = tmp_gw_factor; - gw_node_free_ref(gw_node); + batadv_gw_node_free_ref(gw_node); next: batadv_neigh_node_free_ref(router); @@ -199,9 +200,9 @@ void batadv_gw_election(struct bat_priv *bat_priv) if (!atomic_dec_not_zero(&bat_priv->gw_reselect)) goto out; - curr_gw = gw_get_selected_gw_node(bat_priv); + curr_gw = batadv_gw_get_selected_gw_node(bat_priv); - next_gw = gw_get_best_gw_node(bat_priv); + next_gw = batadv_gw_get_best_gw_node(bat_priv); if (curr_gw == next_gw) goto out; @@ -217,30 +218,30 @@ void batadv_gw_election(struct bat_priv *bat_priv) } if ((curr_gw) && (!next_gw)) { - bat_dbg(DBG_BATMAN, bat_priv, - "Removing selected gateway - no gateway in range\n"); + batadv_dbg(DBG_BATMAN, bat_priv, + "Removing selected gateway - no gateway in range\n"); batadv_throw_uevent(bat_priv, UEV_GW, UEV_DEL, NULL); } else if ((!curr_gw) && (next_gw)) { - bat_dbg(DBG_BATMAN, bat_priv, - "Adding route to gateway %pM (gw_flags: %i, tq: %i)\n", - next_gw->orig_node->orig, next_gw->orig_node->gw_flags, - router->tq_avg); + batadv_dbg(DBG_BATMAN, bat_priv, + "Adding route to gateway %pM (gw_flags: %i, tq: %i)\n", + next_gw->orig_node->orig, + next_gw->orig_node->gw_flags, router->tq_avg); batadv_throw_uevent(bat_priv, UEV_GW, UEV_ADD, gw_addr); } else { - bat_dbg(DBG_BATMAN, bat_priv, - "Changing route to gateway %pM (gw_flags: %i, tq: %i)\n", - next_gw->orig_node->orig, next_gw->orig_node->gw_flags, - router->tq_avg); + batadv_dbg(DBG_BATMAN, bat_priv, + "Changing route to gateway %pM (gw_flags: %i, tq: %i)\n", + next_gw->orig_node->orig, + next_gw->orig_node->gw_flags, router->tq_avg); batadv_throw_uevent(bat_priv, UEV_GW, UEV_CHANGE, gw_addr); } - gw_select(bat_priv, next_gw); + batadv_gw_select(bat_priv, next_gw); out: if (curr_gw) - gw_node_free_ref(curr_gw); + batadv_gw_node_free_ref(curr_gw); if (next_gw) - gw_node_free_ref(next_gw); + batadv_gw_node_free_ref(next_gw); if (router) batadv_neigh_node_free_ref(router); } @@ -282,9 +283,9 @@ void batadv_gw_check_election(struct bat_priv *bat_priv, (orig_tq_avg - gw_tq_avg < atomic_read(&bat_priv->gw_sel_class))) goto out; - bat_dbg(DBG_BATMAN, bat_priv, - "Restarting gateway selection: better gateway found (tq curr: %i, tq new: %i)\n", - gw_tq_avg, orig_tq_avg); + batadv_dbg(DBG_BATMAN, bat_priv, + "Restarting gateway selection: better gateway found (tq curr: %i, tq new: %i)\n", + gw_tq_avg, orig_tq_avg); deselect: batadv_gw_deselect(bat_priv); @@ -299,8 +300,9 @@ out: return; } -static void gw_node_add(struct bat_priv *bat_priv, - struct orig_node *orig_node, uint8_t new_gwflags) +static void batadv_gw_node_add(struct bat_priv *bat_priv, + struct orig_node *orig_node, + uint8_t new_gwflags) { struct gw_node *gw_node; int down, up; @@ -318,13 +320,13 @@ static void gw_node_add(struct bat_priv *bat_priv, spin_unlock_bh(&bat_priv->gw_list_lock); batadv_gw_bandwidth_to_kbit(new_gwflags, &down, &up); - bat_dbg(DBG_BATMAN, bat_priv, - "Found new gateway %pM -> gw_class: %i - %i%s/%i%s\n", - orig_node->orig, new_gwflags, - (down > 2048 ? down / 1024 : down), - (down > 2048 ? "MBit" : "KBit"), - (up > 2048 ? up / 1024 : up), - (up > 2048 ? "MBit" : "KBit")); + batadv_dbg(DBG_BATMAN, bat_priv, + "Found new gateway %pM -> gw_class: %i - %i%s/%i%s\n", + orig_node->orig, new_gwflags, + (down > 2048 ? down / 1024 : down), + (down > 2048 ? "MBit" : "KBit"), + (up > 2048 ? up / 1024 : up), + (up > 2048 ? "MBit" : "KBit")); } void batadv_gw_node_update(struct bat_priv *bat_priv, @@ -338,25 +340,25 @@ void batadv_gw_node_update(struct bat_priv *bat_priv, * have this gateway in our list (duplication check!) even though we * have no currently selected gateway. */ - curr_gw = gw_get_selected_gw_node(bat_priv); + curr_gw = batadv_gw_get_selected_gw_node(bat_priv); rcu_read_lock(); hlist_for_each_entry_rcu(gw_node, node, &bat_priv->gw_list, list) { if (gw_node->orig_node != orig_node) continue; - bat_dbg(DBG_BATMAN, bat_priv, - "Gateway class of originator %pM changed from %i to %i\n", - orig_node->orig, gw_node->orig_node->gw_flags, - new_gwflags); + batadv_dbg(DBG_BATMAN, bat_priv, + "Gateway class of originator %pM changed from %i to %i\n", + orig_node->orig, gw_node->orig_node->gw_flags, + new_gwflags); gw_node->deleted = 0; if (new_gwflags == NO_FLAGS) { gw_node->deleted = jiffies; - bat_dbg(DBG_BATMAN, bat_priv, - "Gateway %pM removed from gateway list\n", - orig_node->orig); + batadv_dbg(DBG_BATMAN, bat_priv, + "Gateway %pM removed from gateway list\n", + orig_node->orig); if (gw_node == curr_gw) goto deselect; @@ -368,7 +370,7 @@ void batadv_gw_node_update(struct bat_priv *bat_priv, if (new_gwflags == NO_FLAGS) goto unlock; - gw_node_add(bat_priv, orig_node, new_gwflags); + batadv_gw_node_add(bat_priv, orig_node, new_gwflags); goto unlock; deselect: @@ -377,7 +379,7 @@ unlock: rcu_read_unlock(); if (curr_gw) - gw_node_free_ref(curr_gw); + batadv_gw_node_free_ref(curr_gw); } void batadv_gw_node_delete(struct bat_priv *bat_priv, @@ -393,7 +395,7 @@ void batadv_gw_node_purge(struct bat_priv *bat_priv) unsigned long timeout = msecs_to_jiffies(2 * PURGE_TIMEOUT); int do_deselect = 0; - curr_gw = gw_get_selected_gw_node(bat_priv); + curr_gw = batadv_gw_get_selected_gw_node(bat_priv); spin_lock_bh(&bat_priv->gw_list_lock); @@ -408,7 +410,7 @@ void batadv_gw_node_purge(struct bat_priv *bat_priv) do_deselect = 1; hlist_del_rcu(&gw_node->list); - gw_node_free_ref(gw_node); + batadv_gw_node_free_ref(gw_node); } spin_unlock_bh(&bat_priv->gw_list_lock); @@ -418,12 +420,13 @@ void batadv_gw_node_purge(struct bat_priv *bat_priv) batadv_gw_deselect(bat_priv); if (curr_gw) - gw_node_free_ref(curr_gw); + batadv_gw_node_free_ref(curr_gw); } /* fails if orig_node has no router */ -static int _write_buffer_text(struct bat_priv *bat_priv, struct seq_file *seq, - const struct gw_node *gw_node) +static int batadv_write_buffer_text(struct bat_priv *bat_priv, + struct seq_file *seq, + const struct gw_node *gw_node) { struct gw_node *curr_gw; struct neigh_node *router; @@ -435,7 +438,7 @@ static int _write_buffer_text(struct bat_priv *bat_priv, struct seq_file *seq, if (!router) goto out; - curr_gw = gw_get_selected_gw_node(bat_priv); + curr_gw = batadv_gw_get_selected_gw_node(bat_priv); ret = seq_printf(seq, "%s %pM (%3i) %pM [%10s]: %3i - %i%s/%i%s\n", (curr_gw == gw_node ? "=>" : " "), @@ -450,7 +453,7 @@ static int _write_buffer_text(struct bat_priv *bat_priv, struct seq_file *seq, batadv_neigh_node_free_ref(router); if (curr_gw) - gw_node_free_ref(curr_gw); + batadv_gw_node_free_ref(curr_gw); out: return ret; } @@ -464,7 +467,7 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset) struct hlist_node *node; int gw_count = 0, ret = 0; - primary_if = primary_if_get_selected(bat_priv); + primary_if = batadv_primary_if_get_selected(bat_priv); if (!primary_if) { ret = seq_printf(seq, "BATMAN mesh %s disabled - please specify interfaces to enable it\n", @@ -491,7 +494,7 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset) continue; /* fails if orig_node has no router */ - if (_write_buffer_text(bat_priv, seq, gw_node) < 0) + if (batadv_write_buffer_text(bat_priv, seq, gw_node) < 0) continue; gw_count++; @@ -503,11 +506,11 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset) out: if (primary_if) - hardif_free_ref(primary_if); + batadv_hardif_free_ref(primary_if); return ret; } -static bool is_type_dhcprequest(struct sk_buff *skb, int header_len) +static bool batadv_is_type_dhcprequest(struct sk_buff *skb, int header_len) { int ret = false; unsigned char *p; @@ -655,7 +658,7 @@ bool batadv_gw_out_of_range(struct bat_priv *bat_priv, if (!orig_dst_node->gw_flags) goto out; - ret = is_type_dhcprequest(skb, header_len); + ret = batadv_is_type_dhcprequest(skb, header_len); if (!ret) goto out; @@ -667,7 +670,7 @@ bool batadv_gw_out_of_range(struct bat_priv *bat_priv, curr_tq_avg = TQ_MAX_VALUE; break; case GW_MODE_CLIENT: - curr_gw = gw_get_selected_gw_node(bat_priv); + curr_gw = batadv_gw_get_selected_gw_node(bat_priv); if (!curr_gw) goto out; @@ -702,7 +705,7 @@ out: if (orig_dst_node) batadv_orig_node_free_ref(orig_dst_node); if (curr_gw) - gw_node_free_ref(curr_gw); + batadv_gw_node_free_ref(curr_gw); if (neigh_old) batadv_neigh_node_free_ref(neigh_old); if (neigh_curr) |