xnu-4570.1.46.tar.gz

[apple/xnu.git] / bsd / netinet / mp_pcb.h

diff --git a/bsd/netinet/mp_pcb.h b/bsd/netinet/mp_pcb.h
index 3c317a6926eef5aff1f65dcc9cdd280eecc22aad..f8fb188c0848dff5222d4a3fb765a9d0055aaa8c 100644 (file)
--- a/bsd/netinet/mp_pcb.h
+++ b/bsd/netinet/mp_pcb.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2012-2017 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
@@ -30,6 +30,9 @@
 #define        _NETINET_MP_PCB_H_
 
 #ifdef BSD_KERNEL_PRIVATE
+#include <sys/domain.h>
+#include <sys/protosw.h>
+#include <sys/socketvar.h>
 #include <sys/types.h>
 #include <sys/queue.h>
 #include <kern/locks.h>
@@ -40,6 +43,10 @@ typedef enum mppcb_state {
        MPPCB_STATE_DEAD        = 2,
 } mppcb_state_t;
 
+
+/* net/necp.h already includes mp_pcb.h - so we have to forward-declare */
+struct necp_client_flow;
+
 /*
  * Multipath Protocol Control Block
  */
@@ -47,17 +54,42 @@ struct mppcb {
        TAILQ_ENTRY(mppcb)      mpp_entry;      /* glue to all PCBs */
        decl_lck_mtx_data(, mpp_lock);          /* per PCB lock */
        struct mppcbinfo        *mpp_pcbinfo;   /* PCB info */
-       void                    *mpp_pcbe;      /* ptr to per-protocol ext */
+       struct mptses           *mpp_pcbe;      /* ptr to MPTCP-session */
        struct socket           *mpp_socket;    /* back pointer to socket */
        uint32_t                mpp_flags;      /* PCB flags */
        mppcb_state_t           mpp_state;      /* PCB state */
+
+#if NECP
+       uuid_t necp_client_uuid;
+       void    (*necp_cb)(void *, int, struct necp_client_flow *);
+#endif
 };
 
-#define        sotomppcb(so)   ((struct mppcb *)((so)->so_pcb))
+static inline struct mppcb *
+mpsotomppcb(struct socket *mp_so)
+{
+       VERIFY(SOCK_DOM(mp_so) == PF_MULTIPATH);
+       return ((struct mppcb *)mp_so->so_pcb);
+}
 
 /* valid values for mpp_flags */
-#define        MPP_ATTACHED    0x1
-#define MPP_DEFUNCT    0x2
+#define        MPP_ATTACHED            0x001
+#define        MPP_INSIDE_OUTPUT       0x002           /* MPTCP-stack is inside mptcp_subflow_output */
+#define        MPP_INSIDE_INPUT        0x004           /* MPTCP-stack is inside mptcp_subflow_input */
+#define        MPP_RUPCALL             0x008           /* MPTCP-stack is handling a read upcall */
+#define        MPP_WUPCALL             0x010           /* MPTCP-stack is handling a read upcall */
+#define        MPP_SHOULD_WORKLOOP     0x020           /* MPTCP-stack should call the workloop function */
+#define        MPP_SHOULD_RWAKEUP      0x040           /* MPTCP-stack should call sorwakeup */
+#define        MPP_SHOULD_WWAKEUP      0x080           /* MPTCP-stack should call sowwakeup */
+#define        MPP_CREATE_SUBFLOWS     0x100           /* This connection needs to create subflows */
+#define        MPP_SET_CELLICON        0x200           /* Set the cellicon (deferred) */
+#define        MPP_UNSET_CELLICON      0x400           /* Unset the cellicon (deferred) */
+
+static inline boolean_t
+mptcp_should_defer_upcall(struct mppcb *mpp)
+{
+       return !!(mpp->mpp_flags & (MPP_INSIDE_OUTPUT | MPP_INSIDE_INPUT | MPP_RUPCALL | MPP_WUPCALL));
+}
 
 /*
  * Multipath PCB Information
@@ -81,10 +113,13 @@ extern void mp_pcbinit(void);
 extern void mp_pcbinfo_attach(struct mppcbinfo *);
 extern int mp_pcbinfo_detach(struct mppcbinfo *);
 extern int mp_pcballoc(struct socket *, struct mppcbinfo *);
-extern void mp_pcbdetach(struct mppcb *);
+extern void mp_pcbdetach(struct socket *);
 extern void mp_pcbdispose(struct mppcb *);
 extern void mp_gc_sched(void);
 extern void mptcp_timer_sched(void);
+extern void mptcp_handle_deferred_upcalls(struct mppcb *mpp, uint32_t flag);
+extern int mp_getsockaddr(struct socket *mp_so, struct sockaddr **nam);
+extern int mp_getpeeraddr(struct socket *mp_so, struct sockaddr **nam);
 __END_DECLS
 
 #endif /* BSD_KERNEL_PRIVATE */