puffs_credcvt
puffs_credcvt(pkcr, cn->cn_cred);
void puffs_credcvt(struct puffs_kcred *, kauth_cred_t);
puffs_credcvt(&sync_msg->pvfsr_cred, cred);
puffs_credcvt(&getattr_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&setattr_msg->pvnr_cred, cred);
puffs_credcvt(&readdir_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&fsync_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&seek_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&readlink_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&(cont)->pvnr_cred, creds)
puffs_credcvt(&mmap_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&getextattr_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&setextattr_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&listextattr_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&deleteextattr_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&open_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&close_msg->pvnr_cred, ap->a_cred);
puffs_credcvt(&access_msg->pvnr_cred, ap->a_cred);