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authorVenky Shankar <venky@gluster.com>2011-10-05 16:56:30 +0530
committerVijay Bellur <vijay@gluster.com>2011-10-28 08:08:40 -0700
commita29f1a0e36bde5ca7b8f3762f10b210b5e12a875 (patch)
treee44c9bd019796c61e7f7059f34f40de0f984b5c7 /libglusterfs
parentaf708e9fc2eb2104b9e8e3b5a3eaf99201664324 (diff)
fuse: flip xattr key from user to trusted namespace for certain
clients. This is needed for gsyncd/hadoop-plugin running as non-super user to be able to request extended attributes under trusted namespace. Request for a key is made under 'user.' namespace and is flipped by fuse xlator for specific xattr name to the corresponding 'trusted.' extended attribute. Both applications set a identifier (client-pid) while doing a FUSE mount, which is checked by get/set/remove interfaces in FUSE translator. Change-Id: I72f77a5dd1ee1d69c8b0e09209449348dbcf879a BUG: 3701 Reviewed-on: http://review.gluster.com/563 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
Diffstat (limited to 'libglusterfs')
-rw-r--r--libglusterfs/src/common-utils.c8
-rw-r--r--libglusterfs/src/common-utils.h17
2 files changed, 25 insertions, 0 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index e7d54d48b..6a5e2504b 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -1946,3 +1946,11 @@ get_mem_size ()
return memsize;
}
+
+
+int
+gf_client_pid_check (gf_client_pid_t npid)
+{
+ return ( (npid > GF_CLIENT_PID_MIN) && (npid < GF_CLIENT_PID_MAX) )
+ ? 0 : -1;
+}
diff --git a/libglusterfs/src/common-utils.h b/libglusterfs/src/common-utils.h
index 2a5e00c5e..6c83a1004 100644
--- a/libglusterfs/src/common-utils.h
+++ b/libglusterfs/src/common-utils.h
@@ -78,7 +78,23 @@ enum _gf_boolean
_gf_true = 1
};
+/*
+ * we could have initialized these as +ve values and treated
+ * them as negative while comparing etc.. (which would have
+ * saved us with the pain of assigning values), but since we
+ * only have a couple of clients that use this feature, it's
+ * okay.
+ */
+enum _gf_client_pid
+{
+ GF_CLIENT_PID_MAX = 0,
+ GF_CLIENT_PID_GSYNCD = -1,
+ GF_CLIENT_PID_HADOOP = -2,
+ GF_CLIENT_PID_MIN = -3
+};
+
typedef enum _gf_boolean gf_boolean_t;
+typedef enum _gf_client_pid gf_client_pid_t;
typedef int (*gf_cmp) (void *, void *);
void gf_global_variable_init(void);
@@ -401,4 +417,5 @@ char *get_host_name (char *word, char **host);
char *get_path_name (char *word, char **path);
void gf_path_strip_trailing_slashes (char *path);
uint64_t get_mem_size ();
+int gf_client_pid_check (gf_client_pid_t npid);
#endif /* _COMMON_UTILS_H */