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-rw-r--r--libglusterfs/src/syncop.h78
1 files changed, 61 insertions, 17 deletions
diff --git a/libglusterfs/src/syncop.h b/libglusterfs/src/syncop.h
index d0417b2..4e14dc3 100644
--- a/libglusterfs/src/syncop.h
+++ b/libglusterfs/src/syncop.h
@@ -25,6 +25,13 @@
#define SYNCENV_PROC_MIN 2
#define SYNCPROC_IDLE_TIME 600
+/*
+ * Flags for syncopctx valid elements
+ */
+#define SYNCOPCTX_UID 0x00000001
+#define SYNCOPCTX_GID 0x00000002
+#define SYNCOPCTX_GROUPS 0x00000004
+
struct synctask;
struct syncproc;
struct syncenv;
@@ -146,6 +153,14 @@ struct syncargs {
int done;
};
+struct syncopctx {
+ unsigned int valid; /* valid flags for elements that are set */
+ uid_t uid;
+ gid_t gid;
+ int grpsize;
+ int ngrps;
+ gid_t *groups;
+};
#define __yawn(args) do { \
args->task = synctask_get (); \
@@ -234,34 +249,63 @@ void synctask_waitfor (struct synctask *task, int count);
int synctask_setid (struct synctask *task, uid_t uid, gid_t gid);
#define SYNCTASK_SETID(uid, gid) synctask_setid (synctask_get(), uid, gid);
+int syncopctx_setfsuid (void *uid);
+int syncopctx_setfsgid (void *gid);
+int syncopctx_setfsgroups (int count, const void *groups);
static inline call_frame_t *
syncop_create_frame (xlator_t *this)
{
- call_frame_t *frame = NULL;
- int ngrps = -1;
+ call_frame_t *frame = NULL;
+ int ngrps = -1;
+ struct syncopctx *opctx = NULL;
frame = create_frame (this, this->ctx->pool);
if (!frame)
return NULL;
- frame->root->pid = getpid();
- frame->root->uid = geteuid ();
- frame->root->gid = getegid ();
- ngrps = getgroups (0, 0);
- if (ngrps < 0) {
- STACK_DESTROY (frame->root);
- return NULL;
- }
+ frame->root->pid = getpid ();
- if (call_stack_alloc_groups (frame->root, ngrps) != 0) {
- STACK_DESTROY (frame->root);
- return NULL;
- }
+ opctx = syncopctx_getctx ();
+ if (opctx && (opctx->valid & SYNCOPCTX_UID))
+ frame->root->uid = opctx->uid;
+ else
+ frame->root->uid = geteuid ();
- if (getgroups (ngrps, frame->root->groups) < 0) {
- STACK_DESTROY (frame->root);
- return NULL;
+ if (opctx && (opctx->valid & SYNCOPCTX_GID))
+ frame->root->gid = opctx->gid;
+ else
+ frame->root->gid = getegid ();
+
+ if (opctx && (opctx->valid & SYNCOPCTX_GROUPS)) {
+ ngrps = opctx->ngrps;
+
+ if (ngrps != 0 && opctx->groups != NULL) {
+ if (call_stack_alloc_groups (frame->root, ngrps) != 0) {
+ STACK_DESTROY (frame->root);
+ return NULL;
+ }
+
+ memcpy (frame->root->groups, opctx->groups,
+ (sizeof (gid_t) * ngrps));
+ }
+ }
+ else {
+ ngrps = getgroups (0, 0);
+ if (ngrps < 0) {
+ STACK_DESTROY (frame->root);
+ return NULL;
+ }
+
+ if (call_stack_alloc_groups (frame->root, ngrps) != 0) {
+ STACK_DESTROY (frame->root);
+ return NULL;
+ }
+
+ if (getgroups (ngrps, frame->root->groups) < 0) {
+ STACK_DESTROY (frame->root);
+ return NULL;
+ }
}
return frame;