From: Kinglong Mee <kinglongmee@gmail.com>
To: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
kinglongmee@gmail.com
Subject: [PATCH 2/4] NFSD: Helper function for parsing uuid
Date: Fri, 23 May 2014 19:59:06 +0800 [thread overview]
Message-ID: <537F380A.5010302@gmail.com> (raw)
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
---
fs/nfsd/export.c | 32 ++++++++++++++++++++------------
1 file changed, 20 insertions(+), 12 deletions(-)
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 9a41d3d..8771f41 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -480,6 +480,23 @@ static inline int
secinfo_parse(char **mesg, char *buf, struct svc_export *exp) { return 0; }
#endif
+static inline int
+uuid_parse(char **mesg, char *buf, unsigned char **puuid)
+{
+ int len;
+
+ /* expect a 16 byte uuid encoded as \xXXXX... */
+ len = qword_get(mesg, buf, PAGE_SIZE);
+ if (len != 16)
+ return -EINVAL;
+
+ *puuid = kmemdup(buf, 16, GFP_KERNEL);
+ if (*puuid == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+
static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
{
/* client path expiry [flags anonuid anongid fsid] */
@@ -558,18 +575,9 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
while ((len = qword_get(&mesg, buf, PAGE_SIZE)) > 0) {
if (strcmp(buf, "fsloc") == 0)
err = fsloc_parse(&mesg, buf, &exp.ex_fslocs);
- else if (strcmp(buf, "uuid") == 0) {
- /* expect a 16 byte uuid encoded as \xXXXX... */
- len = qword_get(&mesg, buf, PAGE_SIZE);
- if (len != 16)
- err = -EINVAL;
- else {
- exp.ex_uuid =
- kmemdup(buf, 16, GFP_KERNEL);
- if (exp.ex_uuid == NULL)
- err = -ENOMEM;
- }
- } else if (strcmp(buf, "secinfo") == 0)
+ else if (strcmp(buf, "uuid") == 0)
+ err = uuid_parse(&mesg, buf, &exp.ex_uuid);
+ else if (strcmp(buf, "secinfo") == 0)
err = secinfo_parse(&mesg, buf, &exp);
else
/* quietly ignore unknown words and anything
--
1.9.0
reply other threads:[~2014-05-23 11:59 UTC|newest]
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