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rxrpc: Pass sk_buff * rather than rxrpc_host_header * to functions

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Pass a pointer to struct sk_buff rather than struct rxrpc_host_header to
functions so that they can in the future get at transport protocol parameters
rather than just RxRPC parameters.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2016-06-16 13:31:07 +01:00
parent cc8feb8edd
commit 42886ffe77
5 changed files with 44 additions and 43 deletions
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6
net/rxrpc/ar-internal.h
View File

@ -544,7 +544,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *,
unsigned long, gfp_t);
struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
struct rxrpc_connection *,
struct rxrpc_host_header *);
struct sk_buff *);
void rxrpc_release_call(struct rxrpc_call *);
void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
void __rxrpc_put_call(struct rxrpc_call *);
@ -574,9 +574,9 @@ int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_conn_parameters *,
void rxrpc_put_connection(struct rxrpc_connection *);
void __exit rxrpc_destroy_all_connections(void);
struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *,
struct rxrpc_host_header *);
struct sk_buff *);
extern struct rxrpc_connection *
rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_host_header *);
rxrpc_incoming_connection(struct rxrpc_transport *, struct sk_buff *);
static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn)
{

4
net/rxrpc/call_accept.c
View File

@ -110,7 +110,7 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
goto error;
}
conn = rxrpc_incoming_connection(trans, &sp->hdr);
conn = rxrpc_incoming_connection(trans, skb);
rxrpc_put_transport(trans);
if (IS_ERR(conn)) {
_debug("no conn");
@ -118,7 +118,7 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
goto error;
}
call = rxrpc_incoming_call(rx, conn, &sp->hdr);
call = rxrpc_incoming_call(rx, conn, skb);
rxrpc_put_connection(conn);
if (IS_ERR(call)) {
_debug("no call");

21
net/rxrpc/call_object.c
View File

@ -421,8 +421,9 @@ found_user_ID_now_present:
*/
struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
struct rxrpc_connection *conn,
struct rxrpc_host_header *hdr)
struct sk_buff *skb)
{
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct rxrpc_call *call, *candidate;
struct rb_node **p, *parent;
u32 call_id;
@ -435,13 +436,13 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
if (!candidate)
return ERR_PTR(-EBUSY);
candidate->socket = rx;
candidate->conn = conn;
candidate->cid = hdr->cid;
candidate->call_id = hdr->callNumber;
candidate->channel = hdr->cid & RXRPC_CHANNELMASK;
candidate->rx_data_post = 0;
candidate->state = RXRPC_CALL_SERVER_ACCEPTING;
candidate->socket = rx;
candidate->conn = conn;
candidate->cid = sp->hdr.cid;
candidate->call_id = sp->hdr.callNumber;
candidate->channel = sp->hdr.cid & RXRPC_CHANNELMASK;
candidate->rx_data_post = 0;
candidate->state = RXRPC_CALL_SERVER_ACCEPTING;
if (conn->security_ix > 0)
candidate->state = RXRPC_CALL_SERVER_SECURING;
@ -450,7 +451,7 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
/* set the channel for this call */
call = conn->channels[candidate->channel];
_debug("channel[%u] is %p", candidate->channel, call);
if (call && call->call_id == hdr->callNumber) {
if (call && call->call_id == sp->hdr.callNumber) {
/* already set; must've been a duplicate packet */
_debug("extant call [%d]", call->state);
ASSERTCMP(call->conn, ==, conn);
@ -488,7 +489,7 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
/* check the call number isn't duplicate */
_debug("check dup");
call_id = hdr->callNumber;
call_id = sp->hdr.callNumber;
p = &conn->calls.rb_node;
parent = NULL;
while (*p) {

49
net/rxrpc/conn_object.c
View File

@ -588,10 +588,10 @@ interrupted:
* get a record of an incoming connection
*/
struct rxrpc_connection *
rxrpc_incoming_connection(struct rxrpc_transport *trans,
struct rxrpc_host_header *hdr)
rxrpc_incoming_connection(struct rxrpc_transport *trans, struct sk_buff *skb)
{
struct rxrpc_connection *conn, *candidate = NULL;
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct rb_node *p, **pp;
const char *new = "old";
__be32 epoch;
@ -599,10 +599,10 @@ rxrpc_incoming_connection(struct rxrpc_transport *trans,
_enter("");
ASSERT(hdr->flags & RXRPC_CLIENT_INITIATED);
ASSERT(sp->hdr.flags & RXRPC_CLIENT_INITIATED);
epoch = hdr->epoch;
cid = hdr->cid & RXRPC_CIDMASK;
epoch = sp->hdr.epoch;
cid = sp->hdr.cid & RXRPC_CIDMASK;
/* search the connection list first */
read_lock_bh(&trans->conn_lock);
@ -634,19 +634,19 @@ rxrpc_incoming_connection(struct rxrpc_transport *trans,
return ERR_PTR(-ENOMEM);
}
candidate->trans = trans;
candidate->proto.local = trans->local;
candidate->proto.epoch = hdr->epoch;
candidate->proto.cid = hdr->cid & RXRPC_CIDMASK;
candidate->proto.in_clientflag = RXRPC_CLIENT_INITIATED;
candidate->params.local = trans->local;
candidate->params.peer = trans->peer;
candidate->params.service_id = hdr->serviceId;
candidate->security_ix = hdr->securityIndex;
candidate->out_clientflag = 0;
candidate->state = RXRPC_CONN_SERVER;
candidate->trans = trans;
candidate->proto.local = trans->local;
candidate->proto.epoch = sp->hdr.epoch;
candidate->proto.cid = sp->hdr.cid & RXRPC_CIDMASK;
candidate->proto.in_clientflag = RXRPC_CLIENT_INITIATED;
candidate->params.local = trans->local;
candidate->params.peer = trans->peer;
candidate->params.service_id = sp->hdr.serviceId;
candidate->security_ix = sp->hdr.securityIndex;
candidate->out_clientflag = 0;
candidate->state = RXRPC_CONN_SERVER;
if (candidate->params.service_id)
candidate->state = RXRPC_CONN_SERVER_UNSECURED;
candidate->state = RXRPC_CONN_SERVER_UNSECURED;
write_lock_bh(&trans->conn_lock);
@ -691,7 +691,7 @@ success:
/* we found the connection in the list immediately */
found_extant_connection:
if (hdr->securityIndex != conn->security_ix) {
if (sp->hdr.securityIndex != conn->security_ix) {
read_unlock_bh(&trans->conn_lock);
goto security_mismatch;
}
@ -701,7 +701,7 @@ found_extant_connection:
/* we found the connection on the second time through the list */
found_extant_second:
if (hdr->securityIndex != conn->security_ix) {
if (sp->hdr.securityIndex != conn->security_ix) {
write_unlock_bh(&trans->conn_lock);
goto security_mismatch;
}
@ -721,20 +721,21 @@ security_mismatch:
* packet
*/
struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *trans,
struct rxrpc_host_header *hdr)
struct sk_buff *skb)
{
struct rxrpc_connection *conn;
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct rb_node *p;
u32 epoch, cid;
_enter(",{%x,%x}", hdr->cid, hdr->flags);
_enter(",{%x,%x}", sp->hdr.cid, sp->hdr.flags);
read_lock_bh(&trans->conn_lock);
cid = hdr->cid & RXRPC_CIDMASK;
epoch = hdr->epoch;
cid = sp->hdr.cid & RXRPC_CIDMASK;
epoch = sp->hdr.epoch;
if (hdr->flags & RXRPC_CLIENT_INITIATED)
if (sp->hdr.flags & RXRPC_CLIENT_INITIATED)
p = trans->server_conns.rb_node;
else
p = trans->client_conns.rb_node;

7
net/rxrpc/input.c
View File

@ -628,8 +628,7 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp, struct sk_buff *skb)
}
static struct rxrpc_connection *rxrpc_conn_from_local(struct rxrpc_local *local,
struct sk_buff *skb,
struct rxrpc_skb_priv *sp)
struct sk_buff *skb)
{
struct rxrpc_peer *peer;
struct rxrpc_transport *trans;
@ -647,7 +646,7 @@ static struct rxrpc_connection *rxrpc_conn_from_local(struct rxrpc_local *local,
if (!trans)
goto cant_find_conn;
conn = rxrpc_find_connection(trans, &sp->hdr);
conn = rxrpc_find_connection(trans, skb);
rxrpc_put_transport(trans);
if (!conn)
goto cant_find_conn;
@ -739,7 +738,7 @@ void rxrpc_data_ready(struct sock *sk)
* old-fashioned way doesn't really hurt */
struct rxrpc_connection *conn;
conn = rxrpc_conn_from_local(local, skb, sp);
conn = rxrpc_conn_from_local(local, skb);
if (!conn)
goto cant_route_call;