global: run through clang-format

This is the worst commit in the whole repo, making the code much less
readable, but so it goes with upstream maintainers.

We are now woefully wrapped at 80 columns.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 75 insertions, 33 deletions

diff --git a/src/socket.c b/src/socket.c
index 663a462..f544dd0 100644
--- a/src/socket.c
+++ b/src/socket.c
@@ -17,7 +17,9 @@
 #include <net/udp_tunnel.h>
 #include <net/ipv6.h>
 
-static inline int send4(struct wireguard_device *wg, struct sk_buff *skb, struct endpoint *endpoint, u8 ds, struct dst_cache *cache)
+static inline int send4(struct wireguard_device *wg, struct sk_buff *skb,
+			struct endpoint *endpoint, u8 ds,
+			struct dst_cache *cache)
 {
 	struct flowi4 fl = {
 		.saddr = endpoint->src4.s_addr,
@@ -49,14 +51,21 @@ static inline int send4(struct wireguard_device *wg, struct sk_buff *skb, struct
 
 	if (!rt) {
 		security_sk_classify_flow(sock, flowi4_to_flowi(&fl));
-		if (unlikely(!inet_confirm_addr(sock_net(sock), NULL, 0, fl.saddr, RT_SCOPE_HOST))) {
-			endpoint->src4.s_addr = *(__force __be32 *)&endpoint->src_if4 = fl.saddr = 0;
+		if (unlikely(!inet_confirm_addr(sock_net(sock), NULL, 0,
+						fl.saddr, RT_SCOPE_HOST))) {
+			endpoint->src4.s_addr = 0;
+			*(__force __be32 *)&endpoint->src_if4 = 0;
+			fl.saddr = 0;
 			if (cache)
 				dst_cache_reset(cache);
 		}
 		rt = ip_route_output_flow(sock_net(sock), &fl, sock);
-		if (unlikely(endpoint->src_if4 && ((IS_ERR(rt) && PTR_ERR(rt) == -EINVAL) || (!IS_ERR(rt) && rt->dst.dev->ifindex != endpoint->src_if4)))) {
-			endpoint->src4.s_addr = *(__force __be32 *)&endpoint->src_if4 = fl.saddr = 0;
+		if (unlikely(endpoint->src_if4 && ((IS_ERR(rt) &&
+				PTR_ERR(rt) == -EINVAL) || (!IS_ERR(rt) &&
+				rt->dst.dev->ifindex != endpoint->src_if4)))) {
+			endpoint->src4.s_addr = 0;
+			*(__force __be32 *)&endpoint->src_if4 = 0;
+			fl.saddr = 0;
 			if (cache)
 				dst_cache_reset(cache);
 			if (!IS_ERR(rt))
@@ -65,18 +74,22 @@ static inline int send4(struct wireguard_device *wg, struct sk_buff *skb, struct
 		}
 		if (unlikely(IS_ERR(rt))) {
 			ret = PTR_ERR(rt);
-			net_dbg_ratelimited("%s: No route to %pISpfsc, error %d\n", wg->dev->name, &endpoint->addr, ret);
+			net_dbg_ratelimited("%s: No route to %pISpfsc, error %d\n",
+					    wg->dev->name, &endpoint->addr, ret);
 			goto err;
 		} else if (unlikely(rt->dst.dev == skb->dev)) {
 			ip_rt_put(rt);
 			ret = -ELOOP;
-			net_dbg_ratelimited("%s: Avoiding routing loop to %pISpfsc\n", wg->dev->name, &endpoint->addr);
+			net_dbg_ratelimited("%s: Avoiding routing loop to %pISpfsc\n",
+					    wg->dev->name, &endpoint->addr);
 			goto err;
 		}
 		if (cache)
 			dst_cache_set_ip4(cache, &rt->dst, fl.saddr);
 	}
-	udp_tunnel_xmit_skb(rt, sock, skb, fl.saddr, fl.daddr, ds, ip4_dst_hoplimit(&rt->dst), 0, fl.fl4_sport, fl.fl4_dport, false, false);
+	udp_tunnel_xmit_skb(rt, sock, skb, fl.saddr, fl.daddr, ds,
+			    ip4_dst_hoplimit(&rt->dst), 0, fl.fl4_sport,
+			    fl.fl4_dport, false, false);
 	goto out;
 
 err:
@@ -86,7 +99,9 @@ out:
 	return ret;
 }
 
-static inline int send6(struct wireguard_device *wg, struct sk_buff *skb, struct endpoint *endpoint, u8 ds, struct dst_cache *cache)
+static inline int send6(struct wireguard_device *wg, struct sk_buff *skb,
+			struct endpoint *endpoint, u8 ds,
+			struct dst_cache *cache)
 {
 #if IS_ENABLED(CONFIG_IPV6)
 	struct flowi6 fl = {
@@ -121,26 +136,32 @@ static inline int send6(struct wireguard_device *wg, struct sk_buff *skb, struct
 
 	if (!dst) {
 		security_sk_classify_flow(sock, flowi6_to_flowi(&fl));
-		if (unlikely(!ipv6_addr_any(&fl.saddr) && !ipv6_chk_addr(sock_net(sock), &fl.saddr, NULL, 0))) {
+		if (unlikely(!ipv6_addr_any(&fl.saddr) &&
+			     !ipv6_chk_addr(sock_net(sock), &fl.saddr, NULL, 0))) {
 			endpoint->src6 = fl.saddr = in6addr_any;
 			if (cache)
 				dst_cache_reset(cache);
 		}
-		ret = ipv6_stub->ipv6_dst_lookup(sock_net(sock), sock, &dst, &fl);
+		ret = ipv6_stub->ipv6_dst_lookup(sock_net(sock), sock, &dst,
+						 &fl);
 		if (unlikely(ret)) {
-			net_dbg_ratelimited("%s: No route to %pISpfsc, error %d\n", wg->dev->name, &endpoint->addr, ret);
+			net_dbg_ratelimited("%s: No route to %pISpfsc, error %d\n",
+					    wg->dev->name, &endpoint->addr, ret);
 			goto err;
 		} else if (unlikely(dst->dev == skb->dev)) {
 			dst_release(dst);
 			ret = -ELOOP;
-			net_dbg_ratelimited("%s: Avoiding routing loop to %pISpfsc\n", wg->dev->name, &endpoint->addr);
+			net_dbg_ratelimited("%s: Avoiding routing loop to %pISpfsc\n",
+					    wg->dev->name, &endpoint->addr);
 			goto err;
 		}
 		if (cache)
 			dst_cache_set_ip6(cache, dst, &fl.saddr);
 	}
 
-	udp_tunnel6_xmit_skb(dst, sock, skb, skb->dev, &fl.saddr, &fl.daddr, ds, ip6_dst_hoplimit(dst), 0, fl.fl6_sport, fl.fl6_dport, false);
+	udp_tunnel6_xmit_skb(dst, sock, skb, skb->dev, &fl.saddr, &fl.daddr, ds,
+			     ip6_dst_hoplimit(dst), 0, fl.fl6_sport,
+			     fl.fl6_dport, false);
 	goto out;
 
 err:
@@ -153,16 +174,19 @@ out:
 #endif
 }
 
-int socket_send_skb_to_peer(struct wireguard_peer *peer, struct sk_buff *skb, u8 ds)
+int socket_send_skb_to_peer(struct wireguard_peer *peer, struct sk_buff *skb,
+			    u8 ds)
 {
 	size_t skb_len = skb->len;
 	int ret = -EAFNOSUPPORT;
 
 	read_lock_bh(&peer->endpoint_lock);
 	if (peer->endpoint.addr.sa_family == AF_INET)
-		ret = send4(peer->device, skb, &peer->endpoint, ds, &peer->endpoint_cache);
+		ret = send4(peer->device, skb, &peer->endpoint, ds,
+			    &peer->endpoint_cache);
 	else if (peer->endpoint.addr.sa_family == AF_INET6)
-		ret = send6(peer->device, skb, &peer->endpoint, ds, &peer->endpoint_cache);
+		ret = send6(peer->device, skb, &peer->endpoint, ds,
+			    &peer->endpoint_cache);
 	else
 		dev_kfree_skb(skb);
 	if (likely(!ret))
@@ -172,7 +196,8 @@ int socket_send_skb_to_peer(struct wireguard_peer *peer, struct sk_buff *skb, u8
 	return ret;
 }
 
-int socket_send_buffer_to_peer(struct wireguard_peer *peer, void *buffer, size_t len, u8 ds)
+int socket_send_buffer_to_peer(struct wireguard_peer *peer, void *buffer,
+			       size_t len, u8 ds)
 {
 	struct sk_buff *skb = alloc_skb(len + SKB_HEADER_LEN, GFP_ATOMIC);
 
@@ -185,7 +210,9 @@ int socket_send_buffer_to_peer(struct wireguard_peer *peer, void *buffer, size_t
 	return socket_send_skb_to_peer(peer, skb, ds);
 }
 
-int socket_send_buffer_as_reply_to_skb(struct wireguard_device *wg, struct sk_buff *in_skb, void *buffer, size_t len)
+int socket_send_buffer_as_reply_to_skb(struct wireguard_device *wg,
+				       struct sk_buff *in_skb, void *buffer,
+				       size_t len)
 {
 	int ret = 0;
 	struct sk_buff *skb;
@@ -208,12 +235,15 @@ int socket_send_buffer_as_reply_to_skb(struct wireguard_device *wg, struct sk_bu
 		ret = send4(wg, skb, &endpoint, 0, NULL);
 	else if (endpoint.addr.sa_family == AF_INET6)
 		ret = send6(wg, skb, &endpoint, 0, NULL);
-	/* No other possibilities if the endpoint is valid, which it is, as we checked above. */
+	/* No other possibilities if the endpoint is valid, which it is,
+	 * as we checked above.
+	 */
 
 	return ret;
 }
 
-int socket_endpoint_from_skb(struct endpoint *endpoint, const struct sk_buff *skb)
+int socket_endpoint_from_skb(struct endpoint *endpoint,
+			     const struct sk_buff *skb)
 {
 	memset(endpoint, 0, sizeof(struct endpoint));
 	if (skb->protocol == htons(ETH_P_IP)) {
@@ -226,25 +256,32 @@ int socket_endpoint_from_skb(struct endpoint *endpoint, const struct sk_buff *sk
 		endpoint->addr6.sin6_family = AF_INET6;
 		endpoint->addr6.sin6_port = udp_hdr(skb)->source;
 		endpoint->addr6.sin6_addr = ipv6_hdr(skb)->saddr;
-		endpoint->addr6.sin6_scope_id = ipv6_iface_scope_id(&ipv6_hdr(skb)->saddr, skb->skb_iif);
+		endpoint->addr6.sin6_scope_id = ipv6_iface_scope_id(
+			&ipv6_hdr(skb)->saddr, skb->skb_iif);
 		endpoint->src6 = ipv6_hdr(skb)->daddr;
 	} else
 		return -EINVAL;
 	return 0;
 }
 
-static inline bool endpoint_eq(const struct endpoint *a, const struct endpoint *b)
+static inline bool endpoint_eq(const struct endpoint *a,
+			       const struct endpoint *b)
 {
 	return (a->addr.sa_family == AF_INET && b->addr.sa_family == AF_INET &&
-		a->addr4.sin_port == b->addr4.sin_port && a->addr4.sin_addr.s_addr == b->addr4.sin_addr.s_addr &&
+		a->addr4.sin_port == b->addr4.sin_port &&
+		a->addr4.sin_addr.s_addr == b->addr4.sin_addr.s_addr &&
 		a->src4.s_addr == b->src4.s_addr && a->src_if4 == b->src_if4) ||
-	       (a->addr.sa_family == AF_INET6 && b->addr.sa_family == AF_INET6 &&
-		a->addr6.sin6_port == b->addr6.sin6_port && ipv6_addr_equal(&a->addr6.sin6_addr, &b->addr6.sin6_addr) &&
-		a->addr6.sin6_scope_id == b->addr6.sin6_scope_id && ipv6_addr_equal(&a->src6, &b->src6)) ||
+	       (a->addr.sa_family == AF_INET6 &&
+		b->addr.sa_family == AF_INET6 &&
+		a->addr6.sin6_port == b->addr6.sin6_port &&
+		ipv6_addr_equal(&a->addr6.sin6_addr, &b->addr6.sin6_addr) &&
+		a->addr6.sin6_scope_id == b->addr6.sin6_scope_id &&
+		ipv6_addr_equal(&a->src6, &b->src6)) ||
 	       unlikely(!a->addr.sa_family && !b->addr.sa_family);
 }
 
-void socket_set_peer_endpoint(struct wireguard_peer *peer, const struct endpoint *endpoint)
+void socket_set_peer_endpoint(struct wireguard_peer *peer,
+			      const struct endpoint *endpoint)
 {
 	/* First we check unlocked, in order to optimize, since it's pretty rare
 	 * that an endpoint will change. If we happen to be mid-write, and two
@@ -268,7 +305,8 @@ out:
 	write_unlock_bh(&peer->endpoint_lock);
 }
 
-void socket_set_peer_endpoint_from_skb(struct wireguard_peer *peer, const struct sk_buff *skb)
+void socket_set_peer_endpoint_from_skb(struct wireguard_peer *peer,
+				       const struct sk_buff *skb)
 {
 	struct endpoint endpoint;
 
@@ -362,7 +400,8 @@ retry:
 			udp_tunnel_sock_release(new4);
 			if (ret == -EADDRINUSE && !port && retries++ < 100)
 				goto retry;
-			pr_err("%s: Could not create IPv6 socket\n", wg->dev->name);
+			pr_err("%s: Could not create IPv6 socket\n",
+			       wg->dev->name);
 			return ret;
 		}
 		set_sock_opts(new6);
@@ -374,13 +413,16 @@ retry:
 	return 0;
 }
 
-void socket_reinit(struct wireguard_device *wg, struct sock *new4, struct sock *new6)
+void socket_reinit(struct wireguard_device *wg, struct sock *new4,
+		   struct sock *new6)
 {
 	struct sock *old4, *old6;
 
 	mutex_lock(&wg->socket_update_lock);
-	old4 = rcu_dereference_protected(wg->sock4, lockdep_is_held(&wg->socket_update_lock));
-	old6 = rcu_dereference_protected(wg->sock6, lockdep_is_held(&wg->socket_update_lock));
+	old4 = rcu_dereference_protected(wg->sock4,
+				lockdep_is_held(&wg->socket_update_lock));
+	old6 = rcu_dereference_protected(wg->sock6,
+				lockdep_is_held(&wg->socket_update_lock));
 	rcu_assign_pointer(wg->sock4, new4);
 	rcu_assign_pointer(wg->sock6, new6);
 	if (new4)