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-rw-r--r--net/9p/protocol.c22
-rw-r--r--net/sunrpc/auth.c28
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c44
-rw-r--r--net/sunrpc/bc_svc.c2
-rw-r--r--net/sunrpc/clnt.c21
-rw-r--r--net/sunrpc/rpc_pipe.c2
-rw-r--r--net/sunrpc/rpcb_clnt.c147
-rw-r--r--net/sunrpc/svc.c36
-rw-r--r--net/sunrpc/svcsock.c106
-rw-r--r--net/sunrpc/xdr.c155
10 files changed, 355 insertions, 208 deletions
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index 798beac7f100..1e308f210928 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -178,27 +178,24 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt,
break;
case 's':{
char **sptr = va_arg(ap, char **);
- int16_t len;
- int size;
+ uint16_t len;
errcode = p9pdu_readf(pdu, proto_version,
"w", &len);
if (errcode)
break;
- size = max_t(int16_t, len, 0);
-
- *sptr = kmalloc(size + 1, GFP_KERNEL);
+ *sptr = kmalloc(len + 1, GFP_KERNEL);
if (*sptr == NULL) {
errcode = -EFAULT;
break;
}
- if (pdu_read(pdu, *sptr, size)) {
+ if (pdu_read(pdu, *sptr, len)) {
errcode = -EFAULT;
kfree(*sptr);
*sptr = NULL;
} else
- (*sptr)[size] = 0;
+ (*sptr)[len] = 0;
}
break;
case 'Q':{
@@ -234,14 +231,14 @@ p9pdu_vreadf(struct p9_fcall *pdu, int proto_version, const char *fmt,
}
break;
case 'D':{
- int32_t *count = va_arg(ap, int32_t *);
+ uint32_t *count = va_arg(ap, uint32_t *);
void **data = va_arg(ap, void **);
errcode =
p9pdu_readf(pdu, proto_version, "d", count);
if (!errcode) {
*count =
- min_t(int32_t, *count,
+ min_t(uint32_t, *count,
pdu->size - pdu->offset);
*data = &pdu->sdata[pdu->offset];
}
@@ -404,9 +401,10 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
break;
case 's':{
const char *sptr = va_arg(ap, const char *);
- int16_t len = 0;
+ uint16_t len = 0;
if (sptr)
- len = min_t(int16_t, strlen(sptr), USHRT_MAX);
+ len = min_t(uint16_t, strlen(sptr),
+ USHRT_MAX);
errcode = p9pdu_writef(pdu, proto_version,
"w", len);
@@ -438,7 +436,7 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt,
stbuf->n_gid, stbuf->n_muid);
} break;
case 'D':{
- int32_t count = va_arg(ap, int32_t);
+ uint32_t count = va_arg(ap, uint32_t);
const void *data = va_arg(ap, const void *);
errcode = p9pdu_writef(pdu, proto_version, "d",
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index afe67849269f..67e31276682a 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -563,8 +563,17 @@ rpcauth_checkverf(struct rpc_task *task, __be32 *p)
return cred->cr_ops->crvalidate(task, p);
}
+static void rpcauth_wrap_req_encode(kxdreproc_t encode, struct rpc_rqst *rqstp,
+ __be32 *data, void *obj)
+{
+ struct xdr_stream xdr;
+
+ xdr_init_encode(&xdr, &rqstp->rq_snd_buf, data);
+ encode(rqstp, &xdr, obj);
+}
+
int
-rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
+rpcauth_wrap_req(struct rpc_task *task, kxdreproc_t encode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
@@ -574,11 +583,22 @@ rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
if (cred->cr_ops->crwrap_req)
return cred->cr_ops->crwrap_req(task, encode, rqstp, data, obj);
/* By default, we encode the arguments normally. */
- return encode(rqstp, data, obj);
+ rpcauth_wrap_req_encode(encode, rqstp, data, obj);
+ return 0;
+}
+
+static int
+rpcauth_unwrap_req_decode(kxdrdproc_t decode, struct rpc_rqst *rqstp,
+ __be32 *data, void *obj)
+{
+ struct xdr_stream xdr;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, data);
+ return decode(rqstp, &xdr, obj);
}
int
-rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
+rpcauth_unwrap_resp(struct rpc_task *task, kxdrdproc_t decode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
@@ -589,7 +609,7 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
return cred->cr_ops->crunwrap_resp(task, decode, rqstp,
data, obj);
/* By default, we decode the arguments normally. */
- return decode(rqstp, data, obj);
+ return rpcauth_unwrap_req_decode(decode, rqstp, data, obj);
}
int
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 3835ce35e224..45dbf1521b9a 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1231,9 +1231,19 @@ out_bad:
return NULL;
}
+static void gss_wrap_req_encode(kxdreproc_t encode, struct rpc_rqst *rqstp,
+ __be32 *p, void *obj)
+{
+ struct xdr_stream xdr;
+
+ xdr_init_encode(&xdr, &rqstp->rq_snd_buf, p);
+ encode(rqstp, &xdr, obj);
+}
+
static inline int
gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
- kxdrproc_t encode, struct rpc_rqst *rqstp, __be32 *p, void *obj)
+ kxdreproc_t encode, struct rpc_rqst *rqstp,
+ __be32 *p, void *obj)
{
struct xdr_buf *snd_buf = &rqstp->rq_snd_buf;
struct xdr_buf integ_buf;
@@ -1249,9 +1259,7 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
- status = encode(rqstp, p, obj);
- if (status)
- return status;
+ gss_wrap_req_encode(encode, rqstp, p, obj);
if (xdr_buf_subsegment(snd_buf, &integ_buf,
offset, snd_buf->len - offset))
@@ -1325,7 +1333,8 @@ out:
static inline int
gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
- kxdrproc_t encode, struct rpc_rqst *rqstp, __be32 *p, void *obj)
+ kxdreproc_t encode, struct rpc_rqst *rqstp,
+ __be32 *p, void *obj)
{
struct xdr_buf *snd_buf = &rqstp->rq_snd_buf;
u32 offset;
@@ -1342,9 +1351,7 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
- status = encode(rqstp, p, obj);
- if (status)
- return status;
+ gss_wrap_req_encode(encode, rqstp, p, obj);
status = alloc_enc_pages(rqstp);
if (status)
@@ -1394,7 +1401,7 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
static int
gss_wrap_req(struct rpc_task *task,
- kxdrproc_t encode, void *rqstp, __be32 *p, void *obj)
+ kxdreproc_t encode, void *rqstp, __be32 *p, void *obj)
{
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
@@ -1407,12 +1414,14 @@ gss_wrap_req(struct rpc_task *task,
/* The spec seems a little ambiguous here, but I think that not
* wrapping context destruction requests makes the most sense.
*/
- status = encode(rqstp, p, obj);
+ gss_wrap_req_encode(encode, rqstp, p, obj);
+ status = 0;
goto out;
}
switch (gss_cred->gc_service) {
case RPC_GSS_SVC_NONE:
- status = encode(rqstp, p, obj);
+ gss_wrap_req_encode(encode, rqstp, p, obj);
+ status = 0;
break;
case RPC_GSS_SVC_INTEGRITY:
status = gss_wrap_req_integ(cred, ctx, encode,
@@ -1494,10 +1503,19 @@ gss_unwrap_resp_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
return 0;
}
+static int
+gss_unwrap_req_decode(kxdrdproc_t decode, struct rpc_rqst *rqstp,
+ __be32 *p, void *obj)
+{
+ struct xdr_stream xdr;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ return decode(rqstp, &xdr, obj);
+}
static int
gss_unwrap_resp(struct rpc_task *task,
- kxdrproc_t decode, void *rqstp, __be32 *p, void *obj)
+ kxdrdproc_t decode, void *rqstp, __be32 *p, void *obj)
{
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
@@ -1528,7 +1546,7 @@ gss_unwrap_resp(struct rpc_task *task,
cred->cr_auth->au_rslack = cred->cr_auth->au_verfsize + (p - savedp)
+ (savedlen - head->iov_len);
out_decode:
- status = decode(rqstp, p, obj);
+ status = gss_unwrap_req_decode(decode, rqstp, p, obj);
out:
gss_put_ctx(ctx);
dprintk("RPC: %5u gss_unwrap_resp returning %d\n", task->tk_pid,
diff --git a/net/sunrpc/bc_svc.c b/net/sunrpc/bc_svc.c
index 7dcfe0cc3500..1dd1a6890007 100644
--- a/net/sunrpc/bc_svc.c
+++ b/net/sunrpc/bc_svc.c
@@ -59,8 +59,8 @@ int bc_send(struct rpc_rqst *req)
ret = task->tk_status;
rpc_put_task(task);
}
- return ret;
dprintk("RPC: bc_send ret= %d\n", ret);
+ return ret;
}
#endif /* CONFIG_NFS_V4_1 */
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 92ce94f5146b..57d344cf2256 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1095,7 +1095,7 @@ static void
rpc_xdr_encode(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
- kxdrproc_t encode;
+ kxdreproc_t encode;
__be32 *p;
dprint_status(task);
@@ -1535,7 +1535,7 @@ call_decode(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
struct rpc_rqst *req = task->tk_rqstp;
- kxdrproc_t decode = task->tk_msg.rpc_proc->p_decode;
+ kxdrdproc_t decode = task->tk_msg.rpc_proc->p_decode;
__be32 *p;
dprintk("RPC: %5u call_decode (status %d)\n",
@@ -1776,12 +1776,11 @@ out_overflow:
goto out_garbage;
}
-static int rpcproc_encode_null(void *rqstp, __be32 *data, void *obj)
+static void rpcproc_encode_null(void *rqstp, struct xdr_stream *xdr, void *obj)
{
- return 0;
}
-static int rpcproc_decode_null(void *rqstp, __be32 *data, void *obj)
+static int rpcproc_decode_null(void *rqstp, struct xdr_stream *xdr, void *obj)
{
return 0;
}
@@ -1830,23 +1829,15 @@ static void rpc_show_task(const struct rpc_clnt *clnt,
const struct rpc_task *task)
{
const char *rpc_waitq = "none";
- char *p, action[KSYM_SYMBOL_LEN];
if (RPC_IS_QUEUED(task))
rpc_waitq = rpc_qname(task->tk_waitqueue);
- /* map tk_action pointer to a function name; then trim off
- * the "+0x0 [sunrpc]" */
- sprint_symbol(action, (unsigned long)task->tk_action);
- p = strchr(action, '+');
- if (p)
- *p = '\0';
-
- printk(KERN_INFO "%5u %04x %6d %8p %8p %8ld %8p %sv%u %s a:%s q:%s\n",
+ printk(KERN_INFO "%5u %04x %6d %8p %8p %8ld %8p %sv%u %s a:%ps q:%s\n",
task->tk_pid, task->tk_flags, task->tk_status,
clnt, task->tk_rqstp, task->tk_timeout, task->tk_ops,
clnt->cl_protname, clnt->cl_vers, rpc_proc_name(task),
- action, rpc_waitq);
+ task->tk_action, rpc_waitq);
}
void rpc_show_tasks(void)
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 09f01f41e55a..72bc53683965 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -474,7 +474,7 @@ static int __rpc_create_common(struct inode *dir, struct dentry *dentry,
{
struct inode *inode;
- BUG_ON(!d_unhashed(dentry));
+ d_drop(dentry);
inode = rpc_get_inode(dir->i_sb, mode);
if (!inode)
goto out_err;
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index fa6d7ca2c851..c652e4cc9fe9 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -57,10 +57,6 @@ enum {
RPCBPROC_GETSTAT,
};
-#define RPCB_HIGHPROC_2 RPCBPROC_CALLIT
-#define RPCB_HIGHPROC_3 RPCBPROC_TADDR2UADDR
-#define RPCB_HIGHPROC_4 RPCBPROC_GETSTAT
-
/*
* r_owner
*
@@ -693,46 +689,37 @@ static void rpcb_getport_done(struct rpc_task *child, void *data)
* XDR functions for rpcbind
*/
-static int rpcb_enc_mapping(struct rpc_rqst *req, __be32 *p,
- const struct rpcbind_args *rpcb)
+static void rpcb_enc_mapping(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct rpcbind_args *rpcb)
{
struct rpc_task *task = req->rq_task;
- struct xdr_stream xdr;
+ __be32 *p;
dprintk("RPC: %5u encoding PMAP_%s call (%u, %u, %d, %u)\n",
task->tk_pid, task->tk_msg.rpc_proc->p_name,
rpcb->r_prog, rpcb->r_vers, rpcb->r_prot, rpcb->r_port);
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
-
- p = xdr_reserve_space(&xdr, sizeof(__be32) * RPCB_mappingargs_sz);
- if (unlikely(p == NULL))
- return -EIO;
-
- *p++ = htonl(rpcb->r_prog);
- *p++ = htonl(rpcb->r_vers);
- *p++ = htonl(rpcb->r_prot);
- *p = htonl(rpcb->r_port);
-
- return 0;
+ p = xdr_reserve_space(xdr, RPCB_mappingargs_sz << 2);
+ *p++ = cpu_to_be32(rpcb->r_prog);
+ *p++ = cpu_to_be32(rpcb->r_vers);
+ *p++ = cpu_to_be32(rpcb->r_prot);
+ *p = cpu_to_be32(rpcb->r_port);
}
-static int rpcb_dec_getport(struct rpc_rqst *req, __be32 *p,
+static int rpcb_dec_getport(struct rpc_rqst *req, struct xdr_stream *xdr,
struct rpcbind_args *rpcb)
{
struct rpc_task *task = req->rq_task;
- struct xdr_stream xdr;
unsigned long port;
-
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
+ __be32 *p;
rpcb->r_port = 0;
- p = xdr_inline_decode(&xdr, sizeof(__be32));
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return -EIO;
- port = ntohl(*p);
+ port = be32_to_cpup(p);
dprintk("RPC: %5u PMAP_%s result: %lu\n", task->tk_pid,
task->tk_msg.rpc_proc->p_name, port);
if (unlikely(port > USHRT_MAX))
@@ -742,20 +729,18 @@ static int rpcb_dec_getport(struct rpc_rqst *req, __be32 *p,
return 0;
}
-static int rpcb_dec_set(struct rpc_rqst *req, __be32 *p,
+static int rpcb_dec_set(struct rpc_rqst *req, struct xdr_stream *xdr,
unsigned int *boolp)
{
struct rpc_task *task = req->rq_task;
- struct xdr_stream xdr;
-
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
+ __be32 *p;
- p = xdr_inline_decode(&xdr, sizeof(__be32));
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
return -EIO;
*boolp = 0;
- if (*p)
+ if (*p != xdr_zero)
*boolp = 1;
dprintk("RPC: %5u RPCB_%s call %s\n",
@@ -764,73 +749,53 @@ static int rpcb_dec_set(struct rpc_rqst *req, __be32 *p,
return 0;
}
-static int encode_rpcb_string(struct xdr_stream *xdr, const char *string,
- const u32 maxstrlen)
+static void encode_rpcb_string(struct xdr_stream *xdr, const char *string,
+ const u32 maxstrlen)
{
- u32 len;
__be32 *p;
+ u32 len;
- if (unlikely(string == NULL))
- return -EIO;
len = strlen(string);
- if (unlikely(len > maxstrlen))
- return -EIO;
-
- p = xdr_reserve_space(xdr, sizeof(__be32) + len);
- if (unlikely(p == NULL))
- return -EIO;
+ BUG_ON(len > maxstrlen);
+ p = xdr_reserve_space(xdr, 4 + len);
xdr_encode_opaque(p, string, len);
-
- return 0;
}
-static int rpcb_enc_getaddr(struct rpc_rqst *req, __be32 *p,
- const struct rpcbind_args *rpcb)
+static void rpcb_enc_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct rpcbind_args *rpcb)
{
struct rpc_task *task = req->rq_task;
- struct xdr_stream xdr;
+ __be32 *p;
dprintk("RPC: %5u encoding RPCB_%s call (%u, %u, '%s', '%s')\n",
task->tk_pid, task->tk_msg.rpc_proc->p_name,
rpcb->r_prog, rpcb->r_vers,
rpcb->r_netid, rpcb->r_addr);
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
-
- p = xdr_reserve_space(&xdr,
- sizeof(__be32) * (RPCB_program_sz + RPCB_version_sz));
- if (unlikely(p == NULL))
- return -EIO;
- *p++ = htonl(rpcb->r_prog);
- *p = htonl(rpcb->r_vers);
-
- if (encode_rpcb_string(&xdr, rpcb->r_netid, RPCBIND_MAXNETIDLEN))
- return -EIO;
- if (encode_rpcb_string(&xdr, rpcb->r_addr, RPCBIND_MAXUADDRLEN))
- return -EIO;
- if (encode_rpcb_string(&xdr, rpcb->r_owner, RPCB_MAXOWNERLEN))
- return -EIO;
+ p = xdr_reserve_space(xdr, (RPCB_program_sz + RPCB_version_sz) << 2);
+ *p++ = cpu_to_be32(rpcb->r_prog);
+ *p = cpu_to_be32(rpcb->r_vers);
- return 0;
+ encode_rpcb_string(xdr, rpcb->r_netid, RPCBIND_MAXNETIDLEN);
+ encode_rpcb_string(xdr, rpcb->r_addr, RPCBIND_MAXUADDRLEN);
+ encode_rpcb_string(xdr, rpcb->r_owner, RPCB_MAXOWNERLEN);
}
-static int rpcb_dec_getaddr(struct rpc_rqst *req, __be32 *p,
+static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr,
struct rpcbind_args *rpcb)
{
struct sockaddr_storage address;
struct sockaddr *sap = (struct sockaddr *)&address;
struct rpc_task *task = req->rq_task;
- struct xdr_stream xdr;
+ __be32 *p;
u32 len;
rpcb->r_port = 0;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
-
- p = xdr_inline_decode(&xdr, sizeof(__be32));
+ p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
goto out_fail;
- len = ntohl(*p);
+ len = be32_to_cpup(p);
/*
* If the returned universal address is a null string,
@@ -845,7 +810,7 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, __be32 *p,
if (unlikely(len > RPCBIND_MAXUADDRLEN))
goto out_fail;
- p = xdr_inline_decode(&xdr, len);
+ p = xdr_inline_decode(xdr, len);
if (unlikely(p == NULL))
goto out_fail;
dprintk("RPC: %5u RPCB_%s reply: %s\n", task->tk_pid,
@@ -871,8 +836,8 @@ out_fail:
static struct rpc_procinfo rpcb_procedures2[] = {
[RPCBPROC_SET] = {
.p_proc = RPCBPROC_SET,
- .p_encode = (kxdrproc_t)rpcb_enc_mapping,
- .p_decode = (kxdrproc_t)rpcb_dec_set,
+ .p_encode = (kxdreproc_t)rpcb_enc_mapping,
+ .p_decode = (kxdrdproc_t)rpcb_dec_set,
.p_arglen = RPCB_mappingargs_sz,
.p_replen = RPCB_setres_sz,
.p_statidx = RPCBPROC_SET,
@@ -881,8 +846,8 @@ static struct rpc_procinfo rpcb_procedures2[] = {
},
[RPCBPROC_UNSET] = {
.p_proc = RPCBPROC_UNSET,
- .p_encode = (kxdrproc_t)rpcb_enc_mapping,
- .p_decode = (kxdrproc_t)rpcb_dec_set,
+ .p_encode = (kxdreproc_t)rpcb_enc_mapping,
+ .p_decode = (kxdrdproc_t)rpcb_dec_set,
.p_arglen = RPCB_mappingargs_sz,
.p_replen = RPCB_setres_sz,
.p_statidx = RPCBPROC_UNSET,
@@ -891,8 +856,8 @@ static struct rpc_procinfo rpcb_procedures2[] = {
},
[RPCBPROC_GETPORT] = {
.p_proc = RPCBPROC_GETPORT,
- .p_encode = (kxdrproc_t)rpcb_enc_mapping,
- .p_decode = (kxdrproc_t)rpcb_dec_getport,
+ .p_encode = (kxdreproc_t)rpcb_enc_mapping,
+ .p_decode = (kxdrdproc_t)rpcb_dec_getport,
.p_arglen = RPCB_mappingargs_sz,
.p_replen = RPCB_getportres_sz,
.p_statidx = RPCBPROC_GETPORT,
@@ -904,8 +869,8 @@ static struct rpc_procinfo rpcb_procedures2[] = {
static struct rpc_procinfo rpcb_procedures3[] = {
[RPCBPROC_SET] = {
.p_proc = RPCBPROC_SET,
- .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
- .p_decode = (kxdrproc_t)rpcb_dec_set,
+ .p_encode = (kxdreproc_t)rpcb_enc_getaddr,
+ .p_decode = (kxdrdproc_t)rpcb_dec_set,
.p_arglen = RPCB_getaddrargs_sz,
.p_replen = RPCB_setres_sz,
.p_statidx = RPCBPROC_SET,
@@ -914,8 +879,8 @@ static struct rpc_procinfo rpcb_procedures3[] = {
},
[RPCBPROC_UNSET] = {
.p_proc = RPCBPROC_UNSET,
- .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
- .p_decode = (kxdrproc_t)rpcb_dec_set,
+ .p_encode = (kxdreproc_t)rpcb_enc_getaddr,
+ .p_decode = (kxdrdproc_t)rpcb_dec_set,
.p_arglen = RPCB_getaddrargs_sz,
.p_replen = RPCB_setres_sz,
.p_statidx = RPCBPROC_UNSET,
@@ -924,8 +889,8 @@ static struct rpc_procinfo rpcb_procedures3[] = {
},
[RPCBPROC_GETADDR] = {
.p_proc = RPCBPROC_GETADDR,
- .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
- .p_decode = (kxdrproc_t)rpcb_dec_getaddr,
+ .p_encode = (kxdreproc_t)rpcb_enc_getaddr,
+ .p_decode = (kxdrdproc_t)rpcb_dec_getaddr,
.p_arglen = RPCB_getaddrargs_sz,
.p_replen = RPCB_getaddrres_sz,
.p_statidx = RPCBPROC_GETADDR,
@@ -937,8 +902,8 @@ static struct rpc_procinfo rpcb_procedures3[] = {
static struct rpc_procinfo rpcb_procedures4[] = {
[RPCBPROC_SET] = {
.p_proc = RPCBPROC_SET,
- .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
- .p_decode = (kxdrproc_t)rpcb_dec_set,
+ .p_encode = (kxdreproc_t)rpcb_enc_getaddr,
+ .p_decode = (kxdrdproc_t)rpcb_dec_set,
.p_arglen = RPCB_getaddrargs_sz,
.p_replen = RPCB_setres_sz,
.p_statidx = RPCBPROC_SET,
@@ -947,8 +912,8 @@ static struct rpc_procinfo rpcb_procedures4[] = {
},
[RPCBPROC_UNSET] = {
.p_proc = RPCBPROC_UNSET,
- .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
- .p_decode = (kxdrproc_t)rpcb_dec_set,
+ .p_encode = (kxdreproc_t)rpcb_enc_getaddr,
+ .p_decode = (kxdrdproc_t)rpcb_dec_set,
.p_arglen = RPCB_getaddrargs_sz,
.p_replen = RPCB_setres_sz,
.p_statidx = RPCBPROC_UNSET,
@@ -957,8 +922,8 @@ static struct rpc_procinfo rpcb_procedures4[] = {
},
[RPCBPROC_GETADDR] = {
.p_proc = RPCBPROC_GETADDR,
- .p_encode = (kxdrproc_t)rpcb_enc_getaddr,
- .p_decode = (kxdrproc_t)rpcb_dec_getaddr,
+ .p_encode = (kxdreproc_t)rpcb_enc_getaddr,
+ .p_decode = (kxdrdproc_t)rpcb_dec_getaddr,
.p_arglen = RPCB_getaddrargs_sz,
.p_replen = RPCB_getaddrres_sz,
.p_statidx = RPCBPROC_GETADDR,
@@ -993,19 +958,19 @@ static struct rpcb_info rpcb_next_version6[] = {
static struct rpc_version rpcb_version2 = {
.number = RPCBVERS_2,
- .nrprocs = RPCB_HIGHPROC_2,
+ .nrprocs = ARRAY_SIZE(rpcb_procedures2),
.procs = rpcb_procedures2
};
static struct rpc_version rpcb_version3 = {
.number = RPCBVERS_3,
- .nrprocs = RPCB_HIGHPROC_3,
+ .nrprocs = ARRAY_SIZE(rpcb_procedures3),
.procs = rpcb_procedures3
};
static struct rpc_version rpcb_version4 = {
.number = RPCBVERS_4,
- .nrprocs = RPCB_HIGHPROC_4,
+ .nrprocs = ARRAY_SIZE(rpcb_procedures4),
.procs = rpcb_procedures4
};
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 6359c42c4941..0e659c665a8d 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -488,10 +488,6 @@ svc_destroy(struct svc_serv *serv)
if (svc_serv_is_pooled(serv))
svc_pool_map_put();
-#if defined(CONFIG_NFS_V4_1)
- svc_sock_destroy(serv->bc_xprt);
-#endif /* CONFIG_NFS_V4_1 */
-
svc_unregister(serv);
kfree(serv->sv_pools);
kfree(serv);
@@ -1147,7 +1143,6 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
dropit:
svc_authorise(rqstp); /* doesn't hurt to call this twice */
dprintk("svc: svc_process dropit\n");
- svc_drop(rqstp);
return 0;
err_short_len:
@@ -1218,7 +1213,6 @@ svc_process(struct svc_rqst *rqstp)
struct kvec *resv = &rqstp->rq_res.head[0];
struct svc_serv *serv = rqstp->rq_server;
u32 dir;
- int error;
/*
* Setup response xdr_buf.
@@ -1246,11 +1240,13 @@ svc_process(struct svc_rqst *rqstp)
return 0;
}
- error = svc_process_common(rqstp, argv, resv);
- if (error <= 0)
- return error;
-
- return svc_send(rqstp);
+ /* Returns 1 for send, 0 for drop */
+ if (svc_process_common(rqstp, argv, resv))
+ return svc_send(rqstp);
+ else {
+ svc_drop(rqstp);
+ return 0;
+ }
}
#if defined(CONFIG_NFS_V4_1)
@@ -1264,10 +1260,9 @@ bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req,
{
struct kvec *argv = &rqstp->rq_arg.head[0];
struct kvec *resv = &rqstp->rq_res.head[0];
- int error;
/* Build the svc_rqst used by the common processing routine */
- rqstp->rq_xprt = serv->bc_xprt;
+ rqstp->rq_xprt = serv->sv_bc_xprt;
rqstp->rq_xid = req->rq_xid;
rqstp->rq_prot = req->rq_xprt->prot;
rqstp->rq_server = serv;
@@ -1292,12 +1287,15 @@ bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req,
svc_getu32(argv); /* XID */
svc_getnl(argv); /* CALLDIR */
- error = svc_process_common(rqstp, argv, resv);
- if (error <= 0)
- return error;
-
- memcpy(&req->rq_snd_buf, &rqstp->rq_res, sizeof(req->rq_snd_buf));
- return bc_send(req);
+ /* Returns 1 for send, 0 for drop */
+ if (svc_process_common(rqstp, argv, resv)) {
+ memcpy(&req->rq_snd_buf, &rqstp->rq_res,
+ sizeof(req->rq_snd_buf));
+ return bc_send(req);
+ } else {
+ /* Nothing to do to drop request */
+ return 0;
+ }
}
EXPORT_SYMBOL(bc_svc_process);
#endif /* CONFIG_NFS_V4_1 */
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 07919e16be3e..d265aa700bb3 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -66,6 +66,13 @@ static void svc_sock_free(struct svc_xprt *);
static struct svc_xprt *svc_create_socket(struct svc_serv *, int,
struct net *, struct sockaddr *,
int, int);
+#if defined(CONFIG_NFS_V4_1)
+static struct svc_xprt *svc_bc_create_socket(struct svc_serv *, int,
+ struct net *, struct sockaddr *,
+ int, int);
+static void svc_bc_sock_free(struct svc_xprt *xprt);
+#endif /* CONFIG_NFS_V4_1 */
+
#ifdef CONFIG_DEBUG_LOCK_ALLOC
static struct lock_class_key svc_key[2];
static struct lock_class_key svc_slock_key[2];
@@ -1184,6 +1191,57 @@ static struct svc_xprt *svc_tcp_create(struct svc_serv *serv,
return svc_create_socket(serv, IPPROTO_TCP, net, sa, salen, flags);
}
+#if defined(CONFIG_NFS_V4_1)
+static struct svc_xprt *svc_bc_create_socket(struct svc_serv *, int,
+ struct net *, struct sockaddr *,
+ int, int);
+static void svc_bc_sock_free(struct svc_xprt *xprt);
+
+static struct svc_xprt *svc_bc_tcp_create(struct svc_serv *serv,
+ struct net *net,
+ struct sockaddr *sa, int salen,
+ int flags)
+{
+ return svc_bc_create_socket(serv, IPPROTO_TCP, net, sa, salen, flags);
+}
+
+static void svc_bc_tcp_sock_detach(struct svc_xprt *xprt)
+{
+}
+
+static struct svc_xprt_ops svc_tcp_bc_ops = {
+ .xpo_create = svc_bc_tcp_create,
+ .xpo_detach = svc_bc_tcp_sock_detach,
+ .xpo_free = svc_bc_sock_free,
+ .xpo_prep_reply_hdr = svc_tcp_prep_reply_hdr,
+};
+
+static struct svc_xprt_class svc_tcp_bc_class = {
+ .xcl_name = "tcp-bc",
+ .xcl_owner = THIS_MODULE,
+ .xcl_ops = &svc_tcp_bc_ops,
+ .xcl_max_payload = RPCSVC_MAXPAYLOAD_TCP,
+};
+
+static void svc_init_bc_xprt_sock(void)
+{
+ svc_reg_xprt_class(&svc_tcp_bc_class);
+}
+
+static void svc_cleanup_bc_xprt_sock(void)
+{
+ svc_unreg_xprt_class(&svc_tcp_bc_class);
+}
+#else /* CONFIG_NFS_V4_1 */
+static void svc_init_bc_xprt_sock(void)
+{
+}
+
+static void svc_cleanup_bc_xprt_sock(void)
+{
+}
+#endif /* CONFIG_NFS_V4_1 */
+
static struct svc_xprt_ops svc_tcp_ops = {
.xpo_create = svc_tcp_create,
.xpo_recvfrom = svc_tcp_recvfrom,
@@ -1207,12 +1265,14 @@ void svc_init_xprt_sock(void)
{
svc_reg_xprt_class(&svc_tcp_class);
svc_reg_xprt_class(&svc_udp_class);
+ svc_init_bc_xprt_sock();
}
void svc_cleanup_xprt_sock(void)
{
svc_unreg_xprt_class(&svc_tcp_class);
svc_unreg_xprt_class(&svc_udp_class);
+ svc_cleanup_bc_xprt_sock();
}
static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv)
@@ -1509,41 +1569,45 @@ static void svc_sock_free(struct svc_xprt *xprt)
kfree(svsk);
}
+#if defined(CONFIG_NFS_V4_1)
/*
- * Create a svc_xprt.
- *
- * For internal use only (e.g. nfsv4.1 backchannel).
- * Callers should typically use the xpo_create() method.
+ * Create a back channel svc_xprt which shares the fore channel socket.
*/
-struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot)
+static struct svc_xprt *svc_bc_create_socket(struct svc_serv *serv,
+ int protocol,
+ struct net *net,
+ struct sockaddr *sin, int len,
+ int flags)
{
struct svc_sock *svsk;
- struct svc_xprt *xprt = NULL;
+ struct svc_xprt *xprt;
+
+ if (protocol != IPPROTO_TCP) {
+ printk(KERN_WARNING "svc: only TCP sockets"
+ " supported on shared back channel\n");
+ return ERR_PTR(-EINVAL);
+ }
- dprintk("svc: %s\n", __func__);
svsk = kzalloc(sizeof(*svsk), GFP_KERNEL);
if (!svsk)
- goto out;
+ return ERR_PTR(-ENOMEM);
xprt = &svsk->sk_xprt;
- if (prot == IPPROTO_TCP)
- svc_xprt_init(&svc_tcp_class, xprt, serv);
- else if (prot == IPPROTO_UDP)
- svc_xprt_init(&svc_udp_class, xprt, serv);
- else
- BUG();
-out:
- dprintk("svc: %s return %p\n", __func__, xprt);
+ svc_xprt_init(&svc_tcp_bc_class, xprt, serv);
+
+ serv->sv_bc_xprt = xprt;
+
return xprt;
}
-EXPORT_SYMBOL_GPL(svc_sock_create);
/*
- * Destroy a svc_sock.
+ * Free a back channel svc_sock.
*/
-void svc_sock_destroy(struct svc_xprt *xprt)
+static void svc_bc_sock_free(struct svc_xprt *xprt)
{
- if (xprt)
+ if (xprt) {
+ kfree(xprt->xpt_bc_sid);
kfree(container_of(xprt, struct svc_sock, sk_xprt));
+ }
}
-EXPORT_SYMBOL_GPL(svc_sock_destroy);
+#endif /* CONFIG_NFS_V4_1 */
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index cd9e841e7492..679cd674b81d 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -552,6 +552,74 @@ void xdr_write_pages(struct xdr_stream *xdr, struct page **pages, unsigned int b
}
EXPORT_SYMBOL_GPL(xdr_write_pages);
+static void xdr_set_iov(struct xdr_stream *xdr, struct kvec *iov,
+ __be32 *p, unsigned int len)
+{
+ if (len > iov->iov_len)
+ len = iov->iov_len;
+ if (p == NULL)
+ p = (__be32*)iov->iov_base;
+ xdr->p = p;
+ xdr->end = (__be32*)(iov->iov_base + len);
+ xdr->iov = iov;
+ xdr->page_ptr = NULL;
+}
+
+static int xdr_set_page_base(struct xdr_stream *xdr,
+ unsigned int base, unsigned int len)
+{
+ unsigned int pgnr;
+ unsigned int maxlen;
+ unsigned int pgoff;
+ unsigned int pgend;
+ void *kaddr;
+
+ maxlen = xdr->buf->page_len;
+ if (base >= maxlen)
+ return -EINVAL;
+ maxlen -= base;
+ if (len > maxlen)
+ len = maxlen;
+
+ base += xdr->buf->page_base;
+
+ pgnr = base >> PAGE_SHIFT;
+ xdr->page_ptr = &xdr->buf->pages[pgnr];
+ kaddr = page_address(*xdr->page_ptr);
+
+ pgoff = base & ~PAGE_MASK;
+ xdr->p = (__be32*)(kaddr + pgoff);
+
+ pgend = pgoff + len;
+ if (pgend > PAGE_SIZE)
+ pgend = PAGE_SIZE;
+ xdr->end = (__be32*)(kaddr + pgend);
+ xdr->iov = NULL;
+ return 0;
+}
+
+static void xdr_set_next_page(struct xdr_stream *xdr)
+{
+ unsigned int newbase;
+
+ newbase = (1 + xdr->page_ptr - xdr->buf->pages) << PAGE_SHIFT;
+ newbase -= xdr->buf->page_base;
+
+ if (xdr_set_page_base(xdr, newbase, PAGE_SIZE) < 0)
+ xdr_set_iov(xdr, xdr->buf->tail, NULL, xdr->buf->len);
+}
+
+static bool xdr_set_next_buffer(struct xdr_stream *xdr)
+{
+ if (xdr->page_ptr != NULL)
+ xdr_set_next_page(xdr);
+ else if (xdr->iov == xdr->buf->head) {
+ if (xdr_set_page_base(xdr, 0, PAGE_SIZE) < 0)
+ xdr_set_iov(xdr, xdr->buf->tail, NULL, xdr->buf->len);
+ }
+ return xdr->p != xdr->end;
+}
+
/**
* xdr_init_decode - Initialize an xdr_stream for decoding data.
* @xdr: pointer to xdr_stream struct
@@ -560,41 +628,67 @@ EXPORT_SYMBOL_GPL(xdr_write_pages);
*/
void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p)
{
- struct kvec *iov = buf->head;
- unsigned int len = iov->iov_len;
-
- if (len > buf->len)
- len = buf->len;
xdr->buf = buf;
- xdr->iov = iov;
- xdr->p = p;
- xdr->end = (__be32 *)((char *)iov->iov_base + len);
+ xdr->scratch.iov_base = NULL;
+ xdr->scratch.iov_len = 0;
+ if (buf->head[0].iov_len != 0)
+ xdr_set_iov(xdr, buf->head, p, buf->len);
+ else if (buf->page_len != 0)
+ xdr_set_page_base(xdr, 0, buf->len);
}
EXPORT_SYMBOL_GPL(xdr_init_decode);
-/**
- * xdr_inline_peek - Allow read-ahead in the XDR data stream
- * @xdr: pointer to xdr_stream struct
- * @nbytes: number of bytes of data to decode
- *
- * Check if the input buffer is long enough to enable us to decode
- * 'nbytes' more bytes of data starting at the current position.
- * If so return the current pointer without updating the current
- * pointer position.
- */
-__be32 * xdr_inline_peek(struct xdr_stream *xdr, size_t nbytes)
+static __be32 * __xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes)
{
__be32 *p = xdr->p;
__be32 *q = p + XDR_QUADLEN(nbytes);
if (unlikely(q > xdr->end || q < p))
return NULL;
+ xdr->p = q;
return p;
}
-EXPORT_SYMBOL_GPL(xdr_inline_peek);
/**
- * xdr_inline_decode - Retrieve non-page XDR data to decode
+ * xdr_set_scratch_buffer - Attach a scratch buffer for decoding data.
+ * @xdr: pointer to xdr_stream struct
+ * @buf: pointer to an empty buffer
+ * @buflen: size of 'buf'
+ *
+ * The scratch buffer is used when decoding from an array of pages.
+ * If an xdr_inline_decode() call spans across page boundaries, then
+ * we copy the data into the scratch buffer in order to allow linear
+ * access.
+ */
+void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen)
+{
+ xdr->scratch.iov_base = buf;
+ xdr->scratch.iov_len = buflen;
+}
+EXPORT_SYMBOL_GPL(xdr_set_scratch_buffer);
+
+static __be32 *xdr_copy_to_scratch(struct xdr_stream *xdr, size_t nbytes)
+{
+ __be32 *p;
+ void *cpdest = xdr->scratch.iov_base;
+ size_t cplen = (char *)xdr->end - (char *)xdr->p;
+
+ if (nbytes > xdr->scratch.iov_len)
+ return NULL;
+ memcpy(cpdest, xdr->p, cplen);
+ cpdest += cplen;
+ nbytes -= cplen;
+ if (!xdr_set_next_buffer(xdr))
+ return NULL;
+ p = __xdr_inline_decode(xdr, nbytes);
+ if (p == NULL)
+ return NULL;
+ memcpy(cpdest, p, nbytes);
+ return xdr->scratch.iov_base;
+}
+
+/**
+ * xdr_inline_decode - Retrieve XDR data to decode
* @xdr: pointer to xdr_stream struct
* @nbytes: number of bytes of data to decode
*
@@ -605,13 +699,16 @@ EXPORT_SYMBOL_GPL(xdr_inline_peek);
*/
__be32 * xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes)
{
- __be32 *p = xdr->p;
- __be32 *q = p + XDR_QUADLEN(nbytes);
+ __be32 *p;
- if (unlikely(q > xdr->end || q < p))
+ if (nbytes == 0)
+ return xdr->p;
+ if (xdr->p == xdr->end && !xdr_set_next_buffer(xdr))
return NULL;
- xdr->p = q;
- return p;
+ p = __xdr_inline_decode(xdr, nbytes);
+ if (p != NULL)
+ return p;
+ return xdr_copy_to_scratch(xdr, nbytes);
}
EXPORT_SYMBOL_GPL(xdr_inline_decode);
@@ -671,16 +768,12 @@ EXPORT_SYMBOL_GPL(xdr_read_pages);
*/
void xdr_enter_page(struct xdr_stream *xdr, unsigned int len)
{
- char * kaddr = page_address(xdr->buf->pages[0]);
xdr_read_pages(xdr, len);
/*
* Position current pointer at beginning of tail, and
* set remaining message length.
*/
- if (len > PAGE_CACHE_SIZE - xdr->buf->page_base)
- len = PAGE_CACHE_SIZE - xdr->buf->page_base;
- xdr->p = (__be32 *)(kaddr + xdr->buf->page_base);
- xdr->end = (__be32 *)((char *)xdr->p + len);
+ xdr_set_page_base(xdr, 0, len);
}
EXPORT_SYMBOL_GPL(xdr_enter_page);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 13:03:16 +0100