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authorChuck Lever <chuck.lever@oracle.com>2023-01-02 12:07:32 -0500
committerChuck Lever <chuck.lever@oracle.com>2023-02-20 09:20:19 -0500
commit6898b47a0f9e118636d82c3e2c39e50f82290a91 (patch)
treea0e1087245214e571a392f3d94b5e92e53424852
parentb0bc53470d1af01f62a0fe2d405cf56477804863 (diff)
downloadlwn-6898b47a0f9e118636d82c3e2c39e50f82290a91.tar.gz
lwn-6898b47a0f9e118636d82c3e2c39e50f82290a91.zip
SUNRPC: Hoist init_decode out of svc_authenticate()
Now that each ->accept method has been converted to use xdr_stream, the svcxdr_init_decode() calls can be hoisted back up into the generic RPC server code. The dprintk in svc_authenticate() is removed, since trace_svc_authenticate() reports the same information. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c2
-rw-r--r--net/sunrpc/svc.c1
-rw-r--r--net/sunrpc/svcauth.c13
-rw-r--r--net/sunrpc/svcauth_unix.c6
4 files changed, 9 insertions, 13 deletions
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index f6d62e39840e..b3a6717e32fd 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1619,8 +1619,6 @@ svcauth_gss_accept(struct svc_rqst *rqstp)
int ret;
struct sunrpc_net *sn = net_generic(SVC_NET(rqstp), sunrpc_net_id);
- svcxdr_init_decode(rqstp);
-
rqstp->rq_auth_stat = rpc_autherr_badcred;
if (!svcdata)
svcdata = kmalloc(sizeof(*svcdata), GFP_KERNEL);
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index f06622814a95..acac00bc98cc 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1276,6 +1276,7 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
* We do this before anything else in order to get a decent
* auth verifier.
*/
+ svcxdr_init_decode(rqstp);
auth_res = svc_authenticate(rqstp);
/* Also give the program a chance to reject this call: */
if (auth_res == SVC_OK && progp)
diff --git a/net/sunrpc/svcauth.c b/net/sunrpc/svcauth.c
index e72ba2f13f6c..67d8245a08af 100644
--- a/net/sunrpc/svcauth.c
+++ b/net/sunrpc/svcauth.c
@@ -63,14 +63,17 @@ svc_put_auth_ops(struct auth_ops *aops)
int
svc_authenticate(struct svc_rqst *rqstp)
{
- rpc_authflavor_t flavor;
- struct auth_ops *aops;
+ struct auth_ops *aops;
+ u32 flavor;
rqstp->rq_auth_stat = rpc_auth_ok;
- flavor = svc_getnl(&rqstp->rq_arg.head[0]);
-
- dprintk("svc: svc_authenticate (%d)\n", flavor);
+ /*
+ * Decode the Call credential's flavor field. The credential's
+ * body field is decoded in the chosen ->accept method below.
+ */
+ if (xdr_stream_decode_u32(&rqstp->rq_arg_stream, &flavor) < 0)
+ return SVC_GARBAGE;
aops = svc_get_auth_ops(flavor);
if (aops == NULL) {
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 168e12137754..f09a148aa0c1 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -750,8 +750,6 @@ svcauth_null_accept(struct svc_rqst *rqstp)
u32 flavor, len;
void *body;
- svcxdr_init_decode(rqstp);
-
/* Length of Call's credential body field: */
if (xdr_stream_decode_u32(xdr, &len) < 0)
return SVC_GARBAGE;
@@ -828,8 +826,6 @@ svcauth_tls_accept(struct svc_rqst *rqstp)
u32 flavor, len;
void *body;
- svcxdr_init_decode(rqstp);
-
/* Length of Call's credential body field: */
if (xdr_stream_decode_u32(xdr, &len) < 0)
return SVC_GARBAGE;
@@ -905,8 +901,6 @@ svcauth_unix_accept(struct svc_rqst *rqstp)
void *body;
__be32 *p;
- svcxdr_init_decode(rqstp);
-
/*
* This implementation ignores the length of the Call's
* credential body field and the timestamp and machinename