diff options
| -rw-r--r-- | net/rxrpc/ar-internal.h | 3 | ||||
| -rw-r--r-- | net/rxrpc/call_accept.c | 31 | ||||
| -rw-r--r-- | net/rxrpc/conn_service.c | 11 | ||||
| -rw-r--r-- | net/rxrpc/utils.c | 32 |
4 files changed, 51 insertions, 26 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index e1af258a7ac9..ad48f851b40c 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -607,7 +607,7 @@ static inline void rxrpc_queue_conn(struct rxrpc_connection *conn) * conn_service.c */ struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *, - struct rxrpc_peer *, + struct sockaddr_rxrpc *, struct sk_buff *); /* @@ -773,6 +773,7 @@ static inline void rxrpc_sysctl_exit(void) {} */ void rxrpc_get_addr_from_skb(struct rxrpc_local *, const struct sk_buff *, struct sockaddr_rxrpc *); +int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *, struct sk_buff *); /* * debug tracing diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c index 5367dbe9b96f..0b2832141bd0 100644 --- a/net/rxrpc/call_accept.c +++ b/net/rxrpc/call_accept.c @@ -75,7 +75,6 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local, { struct rxrpc_connection *conn; struct rxrpc_skb_priv *sp, *nsp; - struct rxrpc_peer *peer; struct rxrpc_call *call; struct sk_buff *notification; int ret; @@ -94,15 +93,7 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local, rxrpc_new_skb(notification); notification->mark = RXRPC_SKB_MARK_NEW_CALL; - peer = rxrpc_lookup_peer(local, srx, GFP_NOIO); - if (!peer) { - _debug("no peer"); - ret = -EBUSY; - goto error; - } - - conn = rxrpc_incoming_connection(local, peer, skb); - rxrpc_put_peer(peer); + conn = rxrpc_incoming_connection(local, srx, skb); if (IS_ERR(conn)) { _debug("no conn"); ret = PTR_ERR(conn); @@ -226,20 +217,8 @@ void rxrpc_accept_incoming_calls(struct rxrpc_local *local) whdr._rsvd = 0; whdr.serviceId = htons(sp->hdr.serviceId); - /* determine the remote address */ - memset(&srx, 0, sizeof(srx)); - srx.srx_family = AF_RXRPC; - srx.transport.family = local->srx.transport.family; - srx.transport_type = local->srx.transport_type; - switch (srx.transport.family) { - case AF_INET: - srx.transport_len = sizeof(struct sockaddr_in); - srx.transport.sin.sin_port = udp_hdr(skb)->source; - srx.transport.sin.sin_addr.s_addr = ip_hdr(skb)->saddr; - break; - default: - goto busy; - } + if (rxrpc_extract_addr_from_skb(&srx, skb) < 0) + goto drop; /* get the socket providing the service */ read_lock_bh(&local->services_lock); @@ -285,6 +264,10 @@ busy: rxrpc_free_skb(skb); return; +drop: + rxrpc_free_skb(skb); + return; + invalid_service: skb->priority = RX_INVALID_OPERATION; rxrpc_reject_packet(local, skb); diff --git a/net/rxrpc/conn_service.c b/net/rxrpc/conn_service.c index cdcac50cd1a8..a42b210c40a5 100644 --- a/net/rxrpc/conn_service.c +++ b/net/rxrpc/conn_service.c @@ -16,17 +16,24 @@ * get a record of an incoming connection */ struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *local, - struct rxrpc_peer *peer, + struct sockaddr_rxrpc *srx, struct sk_buff *skb) { struct rxrpc_connection *conn, *candidate = NULL; struct rxrpc_skb_priv *sp = rxrpc_skb(skb); + struct rxrpc_peer *peer; struct rb_node *p, **pp; const char *new = "old"; u32 epoch, cid; _enter(""); + peer = rxrpc_lookup_peer(local, srx, GFP_NOIO); + if (!peer) { + _debug("no peer"); + return ERR_PTR(-EBUSY); + } + ASSERT(sp->hdr.flags & RXRPC_CLIENT_INITIATED); epoch = sp->hdr.epoch; @@ -58,6 +65,7 @@ struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *local, * redo the search */ candidate = rxrpc_alloc_connection(GFP_NOIO); if (!candidate) { + rxrpc_put_peer(peer); _leave(" = -ENOMEM"); return ERR_PTR(-ENOMEM); } @@ -114,6 +122,7 @@ struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *local, success: _net("CONNECTION %s %d {%x}", new, conn->debug_id, conn->proto.cid); + rxrpc_put_peer(peer); _leave(" = %p {u=%d}", conn, atomic_read(&conn->usage)); return conn; diff --git a/net/rxrpc/utils.c b/net/rxrpc/utils.c index f28122a15a24..d3db02ecc37f 100644 --- a/net/rxrpc/utils.c +++ b/net/rxrpc/utils.c @@ -10,6 +10,7 @@ */ #include <linux/ip.h> +#include <linux/ipv6.h> #include <linux/udp.h> #include "ar-internal.h" @@ -39,3 +40,34 @@ void rxrpc_get_addr_from_skb(struct rxrpc_local *local, BUG(); } } + +/* + * Fill out a peer address from a socket buffer containing a packet. + */ +int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *srx, struct sk_buff *skb) +{ + memset(srx, 0, sizeof(*srx)); + + switch (ntohs(skb->protocol)) { + case ETH_P_IP: + srx->transport_type = SOCK_DGRAM; + srx->transport_len = sizeof(srx->transport.sin); + srx->transport.sin.sin_family = AF_INET; + srx->transport.sin.sin_port = udp_hdr(skb)->source; + srx->transport.sin.sin_addr.s_addr = ip_hdr(skb)->saddr; + return 0; + + case ETH_P_IPV6: + srx->transport_type = SOCK_DGRAM; + srx->transport_len = sizeof(srx->transport.sin6); + srx->transport.sin6.sin6_family = AF_INET6; + srx->transport.sin6.sin6_port = udp_hdr(skb)->source; + srx->transport.sin6.sin6_addr = ipv6_hdr(skb)->saddr; + return 0; + + default: + pr_warn_ratelimited("AF_RXRPC: Unknown eth protocol %u\n", + ntohs(skb->protocol)); + return -EAFNOSUPPORT; + } +} |