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| author | Trond Myklebust <trondmy@gmail.com> | 2019-04-09 11:46:14 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2019-04-24 09:46:34 -0400 |
| commit | 83dd59a0b9afc3b1a2642fb5c9b0585b1c08768f (patch) | |
| tree | 1a6f8142c2739fd44983729fda5b500d5cd0d13b /net/sunrpc/svc.c | |
| parent | 8a9f4f41248a4dc00a9f0831a50f8b7a2fd86bfc (diff) | |
| download | linux-83dd59a0b9afc3b1a2642fb5c9b0585b1c08768f.tar.gz linux-83dd59a0b9afc3b1a2642fb5c9b0585b1c08768f.tar.bz2 linux-83dd59a0b9afc3b1a2642fb5c9b0585b1c08768f.zip | |
SUNRPC/nfs: Fix return value for nfs4_callback_compound()
RPC server procedures are normally expected to return a __be32 encoded
status value of type 'enum rpc_accept_stat', however at least one function
wants to return an authentication status of type 'enum rpc_auth_stat'
in the case where authentication fails.
This patch adds functionality to allow this.
Fixes: a4e187d83d88 ("NFS: Don't drop CB requests with invalid principals")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc/svc.c')
| -rw-r--r-- | net/sunrpc/svc.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index dbd19697ee38..3d5dd6b86652 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -1144,6 +1144,22 @@ void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) static __printf(2,3) void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) {} #endif +__be32 +svc_return_autherr(struct svc_rqst *rqstp, __be32 auth_err) +{ + set_bit(RQ_AUTHERR, &rqstp->rq_flags); + return auth_err; +} +EXPORT_SYMBOL_GPL(svc_return_autherr); + +static __be32 +svc_get_autherr(struct svc_rqst *rqstp, __be32 *statp) +{ + if (test_and_clear_bit(RQ_AUTHERR, &rqstp->rq_flags)) + return *statp; + return rpc_auth_ok; +} + /* * Common routine for processing the RPC request. */ @@ -1290,11 +1306,9 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv) procp->pc_release(rqstp); goto dropit; } - if (*statp == rpc_autherr_badcred) { - if (procp->pc_release) - procp->pc_release(rqstp); - goto err_bad_auth; - } + auth_stat = svc_get_autherr(rqstp, statp); + if (auth_stat != rpc_auth_ok) + goto err_release_bad_auth; if (*statp == rpc_success && procp->pc_encode && !procp->pc_encode(rqstp, resv->iov_base + resv->iov_len)) { dprintk("svc: failed to encode reply\n"); @@ -1351,6 +1365,9 @@ err_bad_rpc: svc_putnl(resv, 2); goto sendit; +err_release_bad_auth: + if (procp->pc_release) + procp->pc_release(rqstp); err_bad_auth: dprintk("svc: authentication failed (%d)\n", ntohl(auth_stat)); serv->sv_stats->rpcbadauth++; |