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path: root/net/sunrpc/auth_gss/svcauth_gss.c
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Diffstat (limited to 'net/sunrpc/auth_gss/svcauth_gss.c')
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index b81e790ef9f..cc385b3a59c 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -494,7 +494,7 @@ static int rsc_parse(struct cache_detail *cd,
len = qword_get(&mesg, buf, mlen);
if (len < 0)
goto out;
- status = gss_import_sec_context(buf, len, gm, &rsci.mechctx);
+ status = gss_import_sec_context(buf, len, gm, &rsci.mechctx, GFP_KERNEL);
if (status)
goto out;
@@ -1315,6 +1315,14 @@ svcauth_gss_wrap_resp_priv(struct svc_rqst *rqstp)
inpages = resbuf->pages;
/* XXX: Would be better to write some xdr helper functions for
* nfs{2,3,4}xdr.c that place the data right, instead of copying: */
+
+ /*
+ * If there is currently tail data, make sure there is
+ * room for the head, tail, and 2 * RPC_MAX_AUTH_SIZE in
+ * the page, and move the current tail data such that
+ * there is RPC_MAX_AUTH_SIZE slack space available in
+ * both the head and tail.
+ */
if (resbuf->tail[0].iov_base) {
BUG_ON(resbuf->tail[0].iov_base >= resbuf->head[0].iov_base
+ PAGE_SIZE);
@@ -1327,6 +1335,13 @@ svcauth_gss_wrap_resp_priv(struct svc_rqst *rqstp)
resbuf->tail[0].iov_len);
resbuf->tail[0].iov_base += RPC_MAX_AUTH_SIZE;
}
+ /*
+ * If there is no current tail data, make sure there is
+ * room for the head data, and 2 * RPC_MAX_AUTH_SIZE in the
+ * allotted page, and set up tail information such that there
+ * is RPC_MAX_AUTH_SIZE slack space available in both the
+ * head and tail.
+ */
if (resbuf->tail[0].iov_base == NULL) {
if (resbuf->head[0].iov_len + 2*RPC_MAX_AUTH_SIZE > PAGE_SIZE)
return -ENOMEM;