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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 14:57:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 14:57:40 -0800
commit57eccf1c2acae2fcb748730881ba75643fc31c81 (patch)
treebe47ac42ef0b2e3e7157ce196ad2ed1224739c6c /net
parent5c395ae7033099fc657114ea997858aa622f08b2 (diff)
parent074b1d12fe2500d7d453902f9266e6674b30d84c (diff)
downloadlinux-57eccf1c2acae2fcb748730881ba75643fc31c81.tar.bz2
Merge branch 'nfs-for-3.3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'nfs-for-3.3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFSv4: Change the default setting of the nfs4_disable_idmapping parameter NFSv4: Save the owner/group name string when doing open NFS: Remove pNFS bloat from the generic write path pnfs-obj: Must return layout on IO error pnfs-obj: pNFS errors are communicated on iodata->pnfs_error NFS: Cache state owners after files are closed NFS: Clean up nfs4_find_state_owners_locked() NFSv4: include bitmap in nfsv4 get acl data nfs: fix a minor do_div portability issue NFSv4.1: cleanup comment and debug printk NFSv4.1: change nfs4_free_slot parameters for dynamic slots NFSv4.1: cleanup init and reset of session slot tables NFSv4.1: fix backchannel slotid off-by-one bug nfs: fix regression in handling of context= option in NFSv4 NFS - fix recent breakage to NFS error handling. NFS: Retry mounting NFSROOT SUNRPC: Clean up the RPCSEC_GSS service ticket requests
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/auth_generic.c6
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c40
-rw-r--r--net/sunrpc/xdr.c3
3 files changed, 29 insertions, 20 deletions
diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index e010a015d996..1426ec3d0a53 100644
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -41,15 +41,17 @@ EXPORT_SYMBOL_GPL(rpc_lookup_cred);
/*
* Public call interface for looking up machine creds.
*/
-struct rpc_cred *rpc_lookup_machine_cred(void)
+struct rpc_cred *rpc_lookup_machine_cred(const char *service_name)
{
struct auth_cred acred = {
.uid = RPC_MACHINE_CRED_USERID,
.gid = RPC_MACHINE_CRED_GROUPID,
+ .principal = service_name,
.machine_cred = 1,
};
- dprintk("RPC: looking up machine cred\n");
+ dprintk("RPC: looking up machine cred for service %s\n",
+ service_name);
return generic_auth.au_ops->lookup_cred(&generic_auth, &acred, 0);
}
EXPORT_SYMBOL_GPL(rpc_lookup_machine_cred);
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index afb56553dfe7..28d72d298735 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -392,7 +392,8 @@ static void gss_encode_v0_msg(struct gss_upcall_msg *gss_msg)
}
static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
- struct rpc_clnt *clnt, int machine_cred)
+ struct rpc_clnt *clnt,
+ const char *service_name)
{
struct gss_api_mech *mech = gss_msg->auth->mech;
char *p = gss_msg->databuf;
@@ -407,12 +408,8 @@ static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
p += len;
gss_msg->msg.len += len;
}
- if (machine_cred) {
- len = sprintf(p, "service=* ");
- p += len;
- gss_msg->msg.len += len;
- } else if (!strcmp(clnt->cl_program->name, "nfs4_cb")) {
- len = sprintf(p, "service=nfs ");
+ if (service_name != NULL) {
+ len = sprintf(p, "service=%s ", service_name);
p += len;
gss_msg->msg.len += len;
}
@@ -429,17 +426,18 @@ static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
}
static void gss_encode_msg(struct gss_upcall_msg *gss_msg,
- struct rpc_clnt *clnt, int machine_cred)
+ struct rpc_clnt *clnt,
+ const char *service_name)
{
if (pipe_version == 0)
gss_encode_v0_msg(gss_msg);
else /* pipe_version == 1 */
- gss_encode_v1_msg(gss_msg, clnt, machine_cred);
+ gss_encode_v1_msg(gss_msg, clnt, service_name);
}
-static inline struct gss_upcall_msg *
-gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid, struct rpc_clnt *clnt,
- int machine_cred)
+static struct gss_upcall_msg *
+gss_alloc_msg(struct gss_auth *gss_auth, struct rpc_clnt *clnt,
+ uid_t uid, const char *service_name)
{
struct gss_upcall_msg *gss_msg;
int vers;
@@ -459,7 +457,7 @@ gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid, struct rpc_clnt *clnt,
atomic_set(&gss_msg->count, 1);
gss_msg->uid = uid;
gss_msg->auth = gss_auth;
- gss_encode_msg(gss_msg, clnt, machine_cred);
+ gss_encode_msg(gss_msg, clnt, service_name);
return gss_msg;
}
@@ -471,7 +469,7 @@ gss_setup_upcall(struct rpc_clnt *clnt, struct gss_auth *gss_auth, struct rpc_cr
struct gss_upcall_msg *gss_new, *gss_msg;
uid_t uid = cred->cr_uid;
- gss_new = gss_alloc_msg(gss_auth, uid, clnt, gss_cred->gc_machine_cred);
+ gss_new = gss_alloc_msg(gss_auth, clnt, uid, gss_cred->gc_principal);
if (IS_ERR(gss_new))
return gss_new;
gss_msg = gss_add_msg(gss_new);
@@ -995,7 +993,9 @@ gss_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
*/
cred->gc_base.cr_flags = 1UL << RPCAUTH_CRED_NEW;
cred->gc_service = gss_auth->service;
- cred->gc_machine_cred = acred->machine_cred;
+ cred->gc_principal = NULL;
+ if (acred->machine_cred)
+ cred->gc_principal = acred->principal;
kref_get(&gss_auth->kref);
return &cred->gc_base;
@@ -1030,7 +1030,12 @@ gss_match(struct auth_cred *acred, struct rpc_cred *rc, int flags)
if (!test_bit(RPCAUTH_CRED_UPTODATE, &rc->cr_flags))
return 0;
out:
- if (acred->machine_cred != gss_cred->gc_machine_cred)
+ if (acred->principal != NULL) {
+ if (gss_cred->gc_principal == NULL)
+ return 0;
+ return strcmp(acred->principal, gss_cred->gc_principal) == 0;
+ }
+ if (gss_cred->gc_principal != NULL)
return 0;
return rc->cr_uid == acred->uid;
}
@@ -1104,7 +1109,8 @@ static int gss_renew_cred(struct rpc_task *task)
struct rpc_auth *auth = oldcred->cr_auth;
struct auth_cred acred = {
.uid = oldcred->cr_uid,
- .machine_cred = gss_cred->gc_machine_cred,
+ .principal = gss_cred->gc_principal,
+ .machine_cred = (gss_cred->gc_principal != NULL ? 1 : 0),
};
struct rpc_cred *new;
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 277ebd4bf095..593f4c605305 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -296,7 +296,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
* Copies data into an arbitrary memory location from an array of pages
* The copy is assumed to be non-overlapping.
*/
-static void
+void
_copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
{
struct page **pgfrom;
@@ -324,6 +324,7 @@ _copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
} while ((len -= copy) != 0);
}
+EXPORT_SYMBOL_GPL(_copy_from_pages);
/*
* xdr_shrink_bufhead