#include <linux/smp_lock.h>
#include <linux/utsname.h>
#include <linux/workqueue.h>
+#include <linux/in6.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
}
}
-static struct rpc_clnt * rpc_new_client(struct rpc_xprt *xprt, char *servname, struct rpc_program *program, u32 vers, rpc_authflavor_t flavor)
+static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
{
+ struct rpc_program *program = args->program;
struct rpc_version *version;
struct rpc_clnt *clnt = NULL;
struct rpc_auth *auth;
/* sanity check the name before trying to print it */
err = -EINVAL;
- len = strlen(servname);
+ len = strlen(args->servername);
if (len > RPC_MAXNETNAMELEN)
goto out_no_rpciod;
len++;
dprintk("RPC: creating %s client for %s (xprt %p)\n",
- program->name, servname, xprt);
+ program->name, args->servername, xprt);
err = rpciod_up();
if (err)
err = -EINVAL;
if (!xprt)
goto out_no_xprt;
- if (vers >= program->nrvers || !(version = program->version[vers]))
+
+ if (args->version >= program->nrvers)
+ goto out_err;
+ version = program->version[args->version];
+ if (version == NULL)
goto out_err;
err = -ENOMEM;
clnt->cl_server = clnt->cl_inline_name;
if (len > sizeof(clnt->cl_inline_name)) {
char *buf = kmalloc(len, GFP_KERNEL);
- if (buf != 0)
+ if (buf != NULL)
clnt->cl_server = buf;
else
len = sizeof(clnt->cl_inline_name);
}
- strlcpy(clnt->cl_server, servname, len);
+ strlcpy(clnt->cl_server, args->servername, len);
clnt->cl_xprt = xprt;
clnt->cl_procinfo = version->procs;
if (!xprt_bound(clnt->cl_xprt))
clnt->cl_autobind = 1;
+ clnt->cl_timeout = xprt->timeout;
+ if (args->timeout != NULL) {
+ memcpy(&clnt->cl_timeout_default, args->timeout,
+ sizeof(clnt->cl_timeout_default));
+ clnt->cl_timeout = &clnt->cl_timeout_default;
+ }
+
clnt->cl_rtt = &clnt->cl_rtt_default;
- rpc_init_rtt(&clnt->cl_rtt_default, xprt->timeout.to_initval);
+ rpc_init_rtt(&clnt->cl_rtt_default, clnt->cl_timeout->to_initval);
kref_init(&clnt->cl_kref);
if (err < 0)
goto out_no_path;
- auth = rpcauth_create(flavor, clnt);
+ auth = rpcauth_create(args->authflavor, clnt);
if (IS_ERR(auth)) {
printk(KERN_INFO "RPC: Couldn't create auth handle (flavor %u)\n",
- flavor);
+ args->authflavor);
err = PTR_ERR(auth);
goto out_no_auth;
}
.srcaddr = args->saddress,
.dstaddr = args->address,
.addrlen = args->addrsize,
- .timeout = args->timeout
};
- char servername[20];
+ char servername[48];
xprt = xprt_create_transport(&xprtargs);
if (IS_ERR(xprt))
* up a string representation of the passed-in address.
*/
if (args->servername == NULL) {
- struct sockaddr_in *addr =
- (struct sockaddr_in *) args->address;
- snprintf(servername, sizeof(servername), NIPQUAD_FMT,
- NIPQUAD(addr->sin_addr.s_addr));
+ servername[0] = '\0';
+ switch (args->address->sa_family) {
+ case AF_INET: {
+ struct sockaddr_in *sin =
+ (struct sockaddr_in *)args->address;
+ snprintf(servername, sizeof(servername), NIPQUAD_FMT,
+ NIPQUAD(sin->sin_addr.s_addr));
+ break;
+ }
+ case AF_INET6: {
+ struct sockaddr_in6 *sin =
+ (struct sockaddr_in6 *)args->address;
+ snprintf(servername, sizeof(servername), NIP6_FMT,
+ NIP6(sin->sin6_addr));
+ break;
+ }
+ default:
+ /* caller wants default server name, but
+ * address family isn't recognized. */
+ return ERR_PTR(-EINVAL);
+ }
args->servername = servername;
}
+ xprt = xprt_create_transport(&xprtargs);
+ if (IS_ERR(xprt))
+ return (struct rpc_clnt *)xprt;
+
/*
* By default, kernel RPC client connects from a reserved port.
* CAP_NET_BIND_SERVICE will not be set for unprivileged requesters,
if (args->flags & RPC_CLNT_CREATE_NONPRIVPORT)
xprt->resvport = 0;
- clnt = rpc_new_client(xprt, args->servername, args->program,
- args->version, args->authflavor);
+ clnt = rpc_new_client(args, xprt);
if (IS_ERR(clnt))
return clnt;
if (!(args->flags & RPC_CLNT_CREATE_NOPING)) {
- int err = rpc_ping(clnt, RPC_TASK_SOFT|RPC_TASK_NOINTR);
+ int err = rpc_ping(clnt, RPC_TASK_SOFT);
if (err != 0) {
rpc_shutdown_client(clnt);
return ERR_PTR(err);
if (args->flags & RPC_CLNT_CREATE_HARDRTRY)
clnt->cl_softrtry = 0;
- if (args->flags & RPC_CLNT_CREATE_INTR)
- clnt->cl_intr = 1;
if (args->flags & RPC_CLNT_CREATE_AUTOBIND)
clnt->cl_autobind = 1;
if (args->flags & RPC_CLNT_CREATE_DISCRTRY)
new->cl_autobind = 0;
INIT_LIST_HEAD(&new->cl_tasks);
spin_lock_init(&new->cl_lock);
- rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval);
+ rpc_init_rtt(&new->cl_rtt_default, clnt->cl_timeout->to_initval);
new->cl_metrics = rpc_alloc_iostats(clnt);
if (new->cl_metrics == NULL)
goto out_no_stats;
/**
* rpc_bind_new_program - bind a new RPC program to an existing client
- * @old - old rpc_client
- * @program - rpc program to set
- * @vers - rpc program version
+ * @old: old rpc_client
+ * @program: rpc program to set
+ * @vers: rpc program version
*
* Clones the rpc client and sets up a new RPC program. This is mainly
* of use for enabling different RPC programs to share the same transport.
clnt->cl_prog = program->number;
clnt->cl_vers = version->number;
clnt->cl_stats = program->stats;
- err = rpc_ping(clnt, RPC_TASK_SOFT|RPC_TASK_NOINTR);
+ err = rpc_ping(clnt, RPC_TASK_SOFT);
if (err != 0) {
rpc_shutdown_client(clnt);
clnt = ERR_PTR(err);
.rpc_call_done = rpc_default_callback,
};
-/*
- * Export the signal mask handling for synchronous code that
- * sleeps on RPC calls
- */
-#define RPC_INTR_SIGNALS (sigmask(SIGHUP) | sigmask(SIGINT) | sigmask(SIGQUIT) | sigmask(SIGTERM))
-
-static void rpc_save_sigmask(sigset_t *oldset, int intr)
-{
- unsigned long sigallow = sigmask(SIGKILL);
- sigset_t sigmask;
-
- /* Block all signals except those listed in sigallow */
- if (intr)
- sigallow |= RPC_INTR_SIGNALS;
- siginitsetinv(&sigmask, sigallow);
- sigprocmask(SIG_BLOCK, &sigmask, oldset);
-}
-
-static inline void rpc_task_sigmask(struct rpc_task *task, sigset_t *oldset)
-{
- rpc_save_sigmask(oldset, !RPC_TASK_UNINTERRUPTIBLE(task));
-}
-
-static inline void rpc_restore_sigmask(sigset_t *oldset)
-{
- sigprocmask(SIG_SETMASK, oldset, NULL);
-}
-
-void rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset)
-{
- rpc_save_sigmask(oldset, clnt->cl_intr);
-}
-EXPORT_SYMBOL_GPL(rpc_clnt_sigmask);
-
-void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset)
-{
- rpc_restore_sigmask(oldset);
-}
-EXPORT_SYMBOL_GPL(rpc_clnt_sigunmask);
-
/**
* rpc_run_task - Allocate a new RPC task, then run rpc_execute against it
* @task_setup_data: pointer to task initialisation data
struct rpc_task *rpc_run_task(const struct rpc_task_setup *task_setup_data)
{
struct rpc_task *task, *ret;
- sigset_t oldset;
task = rpc_new_task(task_setup_data);
if (task == NULL) {
rpc_release_calldata(task_setup_data->callback_ops,
task_setup_data->callback_data);
- return ERR_PTR(-ENOMEM);
+ ret = ERR_PTR(-ENOMEM);
+ goto out;
}
- /* Mask signals on synchronous RPC calls and RPCSEC_GSS upcalls */
- rpc_task_sigmask(task, &oldset);
- if (task_setup_data->rpc_message != NULL) {
- rpc_call_setup(task, task_setup_data->rpc_message, 0);
- if (task->tk_status != 0) {
- ret = ERR_PTR(task->tk_status);
- rpc_put_task(task);
- goto out;
- }
+ if (task->tk_status != 0) {
+ ret = ERR_PTR(task->tk_status);
+ rpc_put_task(task);
+ goto out;
}
atomic_inc(&task->tk_count);
rpc_execute(task);
ret = task;
out:
- rpc_restore_sigmask(&oldset);
return ret;
}
EXPORT_SYMBOL_GPL(rpc_run_task);
* @msg: RPC call parameters
* @flags: RPC call flags
*/
-int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
+int rpc_call_sync(struct rpc_clnt *clnt, const struct rpc_message *msg, int flags)
{
struct rpc_task *task;
struct rpc_task_setup task_setup_data = {
* @clnt: pointer to RPC client
* @msg: RPC call parameters
* @flags: RPC call flags
- * @ops: RPC call ops
+ * @tk_ops: RPC call ops
* @data: user call data
*/
int
-rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
+rpc_call_async(struct rpc_clnt *clnt, const struct rpc_message *msg, int flags,
const struct rpc_call_ops *tk_ops, void *data)
{
struct rpc_task *task;
EXPORT_SYMBOL_GPL(rpc_call_async);
void
-rpc_call_setup(struct rpc_task *task, const struct rpc_message *msg, int flags)
+rpc_call_start(struct rpc_task *task)
{
- task->tk_msg = *msg;
- task->tk_flags |= flags;
- /* Bind the user cred */
- if (task->tk_msg.rpc_cred != NULL)
- rpcauth_holdcred(task);
- else
- rpcauth_bindcred(task);
-
- if (task->tk_status == 0)
- task->tk_action = call_start;
- else
- task->tk_action = rpc_exit_task;
+ task->tk_action = call_start;
}
-EXPORT_SYMBOL_GPL(rpc_call_setup);
+EXPORT_SYMBOL_GPL(rpc_call_start);
/**
* rpc_peeraddr - extract remote peer address from clnt's xprt
* @clnt: RPC client structure
* @buf: target buffer
- * @size: length of target buffer
+ * @bufsize: length of target buffer
*
* Returns the number of bytes that are actually in the stored address.
*/
* @format: address format
*
*/
-char *rpc_peeraddr2str(struct rpc_clnt *clnt, enum rpc_display_format_t format)
+const char *rpc_peeraddr2str(struct rpc_clnt *clnt,
+ enum rpc_display_format_t format)
{
struct rpc_xprt *xprt = clnt->cl_xprt;
if (task->tk_msg.rpc_proc->p_decode != NULL)
return;
task->tk_action = rpc_exit_task;
- rpc_wake_up_task(task);
+ rpc_wake_up_queued_task(&task->tk_xprt->pending, task);
}
/*
task->tk_flags &= ~RPC_CALL_MAJORSEEN;
}
- if (task->tk_status < 12) {
- if (!RPC_IS_SOFT(task)) {
- task->tk_action = call_bind;
- clnt->cl_stats->rpcretrans++;
- goto out_retry;
- }
- dprintk("RPC: %s: too small RPC reply size (%d bytes)\n",
- clnt->cl_protname, task->tk_status);
- task->tk_action = call_timeout;
- goto out_retry;
- }
-
/*
* Ensure that we see all writes made by xprt_complete_rqst()
* before it changed req->rq_received.
WARN_ON(memcmp(&req->rq_rcv_buf, &req->rq_private_buf,
sizeof(req->rq_rcv_buf)) != 0);
+ if (req->rq_rcv_buf.len < 12) {
+ if (!RPC_IS_SOFT(task)) {
+ task->tk_action = call_bind;
+ clnt->cl_stats->rpcretrans++;
+ goto out_retry;
+ }
+ dprintk("RPC: %s: too small RPC reply size (%d bytes)\n",
+ clnt->cl_protname, task->tk_status);
+ task->tk_action = call_timeout;
+ goto out_retry;
+ }
+
/* Verify the RPC header */
p = call_verify(task);
if (IS_ERR(p)) {
task->tk_status);
return;
out_retry:
- req->rq_received = req->rq_private_buf.len = 0;
task->tk_status = 0;
- if (task->tk_client->cl_discrtry)
- xprt_force_disconnect(task->tk_xprt);
+ /* Note: call_verify() may have freed the RPC slot */
+ if (task->tk_rqstp == req) {
+ req->rq_received = req->rq_rcv_buf.len = 0;
+ if (task->tk_client->cl_discrtry)
+ xprt_force_disconnect(task->tk_xprt);
+ }
}
/*
proc = -1;
if (RPC_IS_QUEUED(t))
- rpc_waitq = rpc_qname(t->u.tk_wait.rpc_waitq);
+ rpc_waitq = rpc_qname(t->tk_waitqueue);
printk("%5u %04d %04x %6d %8p %6d %8p %8ld %8s %8p %8p\n",
t->tk_pid, proc,
projects / mv-sheeva.git / blobdiff