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rpc: add target field to new upcall

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This patch extends the new upcall by adding a "target" field
communicating who we want to authenticate to (equivalently, the service
principal that we want to acquire a ticket for).

Signed-off: Olga Kornievskaia <aglo@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Olga Kornievskaia 2008-12-23 16:19:26 -05:00 committed by Trond Myklebust
parent 61054b14d5
commit 8b1c7bf5b6
1 changed files with 21 additions and 7 deletions
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28
net/sunrpc/auth_gss/auth_gss.c
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@ -368,25 +368,39 @@ static void gss_encode_v0_msg(struct gss_upcall_msg *gss_msg)
gss_msg->msg.len = sizeof(gss_msg->uid);
}
static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg)
static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
struct rpc_clnt *clnt)
{
gss_msg->msg.len = sprintf(gss_msg->databuf, "mech=%s uid=%d\n",
char *p = gss_msg->databuf;
int len = 0;
gss_msg->msg.len = sprintf(gss_msg->databuf, "mech=%s uid=%d ",
gss_msg->auth->mech->gm_name,
gss_msg->uid);
p += gss_msg->msg.len;
if (clnt->cl_principal) {
len = sprintf(p, "target=%s ", clnt->cl_principal);
p += len;
gss_msg->msg.len += len;
}
len = sprintf(p, "\n");
gss_msg->msg.len += len;
gss_msg->msg.data = gss_msg->databuf;
BUG_ON(gss_msg->msg.len > UPCALL_BUF_LEN);
}
static void gss_encode_msg(struct gss_upcall_msg *gss_msg)
static void gss_encode_msg(struct gss_upcall_msg *gss_msg,
struct rpc_clnt *clnt)
{
if (pipe_version == 0)
gss_encode_v0_msg(gss_msg);
else /* pipe_version == 1 */
gss_encode_v1_msg(gss_msg);
gss_encode_v1_msg(gss_msg, clnt);
}
static inline struct gss_upcall_msg *
gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid)
gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid, struct rpc_clnt *clnt)
{
struct gss_upcall_msg *gss_msg;
int vers;
@ -406,7 +420,7 @@ gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid)
atomic_set(&gss_msg->count, 1);
gss_msg->uid = uid;
gss_msg->auth = gss_auth;
gss_encode_msg(gss_msg);
gss_encode_msg(gss_msg, clnt);
return gss_msg;
}
@ -422,7 +436,7 @@ gss_setup_upcall(struct rpc_clnt *clnt, struct gss_auth *gss_auth, struct rpc_cr
if (gss_cred->gc_machine_cred != 0)
uid = 0;
gss_new = gss_alloc_msg(gss_auth, uid);
gss_new = gss_alloc_msg(gss_auth, uid, clnt);
if (IS_ERR(gss_new))
return gss_new;
gss_msg = gss_add_msg(gss_auth, gss_new);