xnu-1504.3.12.tar.gz

[apple/xnu.git] / bsd / net / if_var.h

diff --git a/bsd/net/if_var.h b/bsd/net/if_var.h
index f26aebe00073b9b0b115ca667465899534b04b18..0601b78729a0384523eb482db6eaba8261a78b14 100644 (file)
--- a/bsd/net/if_var.h
+++ b/bsd/net/if_var.h
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -65,16 +65,20 @@
 #define        _NET_IF_VAR_H_
 
 #include <sys/appleapiopts.h>
 #define        _NET_IF_VAR_H_
 
 #include <sys/appleapiopts.h>

+#include <stdint.h>

 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/queue.h>         /* get TAILQ macros */
 #ifdef KERNEL_PRIVATE
 #include <kern/locks.h>
 #endif /* KERNEL_PRIVATE */
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/queue.h>         /* get TAILQ macros */
 #ifdef KERNEL_PRIVATE
 #include <kern/locks.h>
 #endif /* KERNEL_PRIVATE */

+#ifdef PRIVATE
+#include <net/route.h>
+#endif

 
 #ifdef KERNEL
 #include <net/kpi_interface.h>
 
 #ifdef KERNEL
 #include <net/kpi_interface.h>

-#endif KERNEL
+#endif /* KERNEL */

 
 #ifdef __APPLE__
 #define APPLE_IF_FAM_LOOPBACK  1
 
 #ifdef __APPLE__
 #define APPLE_IF_FAM_LOOPBACK  1


@@ -257,6 +261,8 @@ struct if_data_internal {
 #define IF_LASTCHANGEUPTIME    1       /* lastchange: 1-uptime 0-calendar time */
        struct  timeval ifi_lastchange; /* time of last administrative change */
        u_int32_t       ifi_hwassist;   /* HW offload capabilities */
 #define IF_LASTCHANGEUPTIME    1       /* lastchange: 1-uptime 0-calendar time */
        struct  timeval ifi_lastchange; /* time of last administrative change */
        u_int32_t       ifi_hwassist;   /* HW offload capabilities */

+       u_int32_t       ifi_tso_v4_mtu; /* TCP Segment Offload IPv4 maximum segment size */
+       u_int32_t       ifi_tso_v6_mtu; /* TCP Segment Offload IPv6 maximum segment size */

 };
 
 #define        if_mtu          if_data.ifi_mtu
 };
 
 #define        if_mtu          if_data.ifi_mtu


@@ -283,6 +289,8 @@ struct if_data_internal {
 #define if_recvquota   if_data.ifi_recvquota
 #define        if_xmitquota    if_data.ifi_xmitquota
 #define if_iflags      if_data.ifi_iflags
 #define if_recvquota   if_data.ifi_recvquota
 #define        if_xmitquota    if_data.ifi_xmitquota
 #define if_iflags      if_data.ifi_iflags

+#define        if_tso_v4_mtu   if_data.ifi_tso_v4_mtu
+#define        if_tso_v6_mtu   if_data.ifi_tso_v6_mtu

 
 struct mbuf;
 struct ifaddr;
 
 struct mbuf;
 struct ifaddr;


@@ -306,19 +314,33 @@ struct ifnet_filter;
 TAILQ_HEAD(ifnet_filter_head, ifnet_filter);
 TAILQ_HEAD(ddesc_head_name, dlil_demux_desc);
 
 TAILQ_HEAD(ifnet_filter_head, ifnet_filter);
 TAILQ_HEAD(ddesc_head_name, dlil_demux_desc);
 

-/* bottom 16 bits reserved for hardware checksum */
-#define IF_HWASSIST_CSUM_IP            0x0001  /* will csum IP */
-#define IF_HWASSIST_CSUM_TCP           0x0002  /* will csum TCP */
-#define IF_HWASSIST_CSUM_UDP           0x0004  /* will csum UDP */
-#define IF_HWASSIST_CSUM_IP_FRAGS      0x0008  /* will csum IP fragments */
-#define IF_HWASSIST_CSUM_FRAGMENT      0x0010  /* will do IP fragmentation */
-#define IF_HWASSIST_CSUM_TCP_SUM16     0x1000  /* simple TCP Sum16 computation */
+/* All of the following IF_HWASSIST_* flags are defined
+ * in kpi_inteface.h as IFNET_* flags. These are redefined
+ * here as constants to avoid failures to build user level
+ * programs that can not include kpi_interface.h. It is 
+ * important to keep this in sync with the definitions in
+ * kpi_interface.h. The corresponding constant for each 
+ * definition is mentioned in the comment.
+ *
+ * Bottom 16 bits reserved for hardware checksum 
+ */
+#define IF_HWASSIST_CSUM_IP            0x0001  /* will csum IP, IFNET_CSUM_IP */
+#define IF_HWASSIST_CSUM_TCP           0x0002  /* will csum TCP, IFNET_CSUM_TCP */
+#define IF_HWASSIST_CSUM_UDP           0x0004  /* will csum UDP, IFNET_CSUM_UDP */
+#define IF_HWASSIST_CSUM_IP_FRAGS      0x0008  /* will csum IP fragments, IFNET_CSUM_FRAGMENT */
+#define IF_HWASSIST_CSUM_FRAGMENT      0x0010  /* will do IP fragmentation, IFNET_IP_FRAGMENT */
+#define IF_HWASSIST_CSUM_TCP_SUM16     0x1000  /* simple TCP Sum16 computation, IFNET_CSUM_SUM16 */

 #define IF_HWASSIST_CSUM_MASK          0xffff
 #define IF_HWASSIST_CSUM_FLAGS(hwassist)       ((hwassist) & IF_HWASSIST_CSUM_MASK)
 
 /* VLAN support */
 #define IF_HWASSIST_CSUM_MASK          0xffff
 #define IF_HWASSIST_CSUM_FLAGS(hwassist)       ((hwassist) & IF_HWASSIST_CSUM_MASK)
 
 /* VLAN support */

-#define IF_HWASSIST_VLAN_TAGGING       0x10000 /* supports VLAN tagging */
-#define IF_HWASSIST_VLAN_MTU           0x20000 /* supports VLAN MTU-sized packet (for software VLAN) */
+#define IF_HWASSIST_VLAN_TAGGING       0x00010000      /* supports VLAN tagging, IFNET_VLAN_TAGGING */
+#define IF_HWASSIST_VLAN_MTU           0x00020000      /* supports VLAN MTU-sized packet (for software VLAN), IFNET_VLAN_MTU */
+
+/* TCP Segment Offloading support */
+
+#define IF_HWASSIST_TSO_V4             0x00200000      /* will do TCP Segment offload for IPv4, IFNET_TSO_IPV4 */
+#define IF_HWASSIST_TSO_V6             0x00400000      /* will do TCP Segment offload for IPv6, IFNET_TSO_IPV6 */

 
 #define IFNET_RW_LOCK 1
 
 
 #define IFNET_RW_LOCK 1
 


@@ -340,6 +362,9 @@ struct ddesc_head_str;
 struct proto_hash_entry;
 struct kev_msg;
 struct dlil_threading_info;
 struct proto_hash_entry;
 struct kev_msg;
 struct dlil_threading_info;

+#if PF
+struct pfi_kif;
+#endif /* PF */

 
 /*
  * Structure defining a network interface.
 
 /*
  * Structure defining a network interface.


@@ -351,12 +376,12 @@ struct ifnet {
        const char      *if_name;               /* name, e.g. ``en'' or ``lo'' */
        TAILQ_ENTRY(ifnet) if_link;     /* all struct ifnets are chained */
        struct  ifaddrhead if_addrhead; /* linked list of addresses per if */
        const char      *if_name;               /* name, e.g. ``en'' or ``lo'' */
        TAILQ_ENTRY(ifnet) if_link;     /* all struct ifnets are chained */
        struct  ifaddrhead if_addrhead; /* linked list of addresses per if */

-       u_long  if_refcnt;
+       u_int32_t       if_refcnt;

 #ifdef __KPI_INTERFACE__
        ifnet_check_multi       if_check_multi;
 #else
        void*                           if_check_multi;
 #ifdef __KPI_INTERFACE__
        ifnet_check_multi       if_check_multi;
 #else
        void*                           if_check_multi;

-#endif __KPI_INTERFACE__
+#endif /* __KPI_INTERFACE__ */

        int     if_pcount;              /* number of promiscuous listeners */
        struct  bpf_if *if_bpf;         /* packet filter structure */
        u_short if_index;               /* numeric abbreviation for this if  */
        int     if_pcount;              /* number of promiscuous listeners */
        struct  bpf_if *if_bpf;         /* packet filter structure */
        u_short if_index;               /* numeric abbreviation for this if  */


@@ -382,7 +407,7 @@ struct ifnet {
        ifnet_demux_func        if_demux;
        ifnet_event_func        if_event;
        ifnet_framer_func       if_framer;
        ifnet_demux_func        if_demux;
        ifnet_event_func        if_event;
        ifnet_framer_func       if_framer;

-       ifnet_family_t          if_family;              /* ulong assigned by Apple */
+       ifnet_family_t          if_family;              /* value assigned by Apple */

 #else
        void*                           if_output;
        void*                           if_ioctl;
 #else
        void*                           if_output;
        void*                           if_ioctl;


@@ -391,14 +416,14 @@ struct ifnet {
        void*                           if_demux;
        void*                           if_event;
        void*                           if_framer;
        void*                           if_demux;
        void*                           if_event;
        void*                           if_framer;

-       u_long                          if_family;              /* ulong assigned by Apple */
+       u_int32_t                       if_family;              /* value assigned by Apple */

 #endif
 
        struct ifnet_filter_head if_flt_head;
 
 /* End DLIL specific */
 
 #endif
 
        struct ifnet_filter_head if_flt_head;
 
 /* End DLIL specific */
 

-       u_long  if_delayed_detach; /* need to perform delayed detach */
+       u_int32_t       if_delayed_detach; /* need to perform delayed detach */

        void    *if_private;    /* private to interface */
        long    if_eflags;              /* autoaddr, autoaddr done, etc. */
 
        void    *if_private;    /* private to interface */
        long    if_eflags;              /* autoaddr, autoaddr done, etc. */
 


@@ -408,10 +433,10 @@ struct ifnet {
 #ifdef __KPI_INTERFACE__
        ifnet_add_proto_func    if_add_proto;
        ifnet_del_proto_func    if_del_proto;
 #ifdef __KPI_INTERFACE__
        ifnet_add_proto_func    if_add_proto;
        ifnet_del_proto_func    if_del_proto;

-#else __KPI_INTERFACE__
+#else /* !__KPI_INTERFACE__ */

        void*   if_add_proto;
        void*   if_del_proto;
        void*   if_add_proto;
        void*   if_del_proto;

-#endif __KPI_INTERFACE__
+#endif /* !__KPI_INTERFACE__ */

        struct proto_hash_entry *if_proto_hash;
        void                                    *if_kpi_storage;
 #if 0  
        struct proto_hash_entry *if_proto_hash;
        void                                    *if_kpi_storage;
 #if 0  


@@ -422,9 +447,9 @@ struct ifnet {
        void    *unused_was_resolvemulti;
        
        struct ifqueue  if_snd;
        void    *unused_was_resolvemulti;
        
        struct ifqueue  if_snd;

-       u_long  unused_2[1];
+       u_int32_t       unused_2[1];

 #ifdef __APPLE__
 #ifdef __APPLE__

-       u_long  family_cookie;
+       uintptr_t       family_cookie;

        struct  ifprefixhead if_prefixhead; /* list of prefixes per if */
 
 #ifdef _KERN_LOCKS_H_
        struct  ifprefixhead if_prefixhead; /* list of prefixes per if */
 
 #ifdef _KERN_LOCKS_H_


@@ -441,7 +466,7 @@ struct ifnet {
        struct  ifprefixhead if_prefixhead; /* list of prefixes per if */
 #endif /* __APPLE__ */
        struct {
        struct  ifprefixhead if_prefixhead; /* list of prefixes per if */
 #endif /* __APPLE__ */
        struct {

-               u_long  length;
+               u_int32_t       length;

                union {
                        u_char  buffer[8];
                        u_char  *ptr;
                union {
                        u_char  buffer[8];
                        u_char  *ptr;


@@ -450,13 +475,26 @@ struct ifnet {
 #if CONFIG_MACF_NET
        struct  label *if_label;        /* interface MAC label */
 #endif
 #if CONFIG_MACF_NET
        struct  label *if_label;        /* interface MAC label */
 #endif

+
+       u_int32_t       if_wake_properties;
+#if PF
+       struct thread   *if_pf_curthread;
+       struct pfi_kif  *if_pf_kif;
+#endif /* PF */
+#ifdef _KERN_LOCKS_H_
+       lck_mtx_t       *if_fwd_route_lock;
+#else
+       void            *if_fwd_route_lock;
+#endif
+       struct route    if_fwd_route;   /* cached IPv4 forwarding route */
+       void    *if_bridge;             /* bridge glue */

 };
 
 #ifndef __APPLE__
 /* for compatibility with other BSDs */
 #define        if_addrlist     if_addrhead
 #define        if_list         if_link
 };
 
 #ifndef __APPLE__
 /* for compatibility with other BSDs */
 #define        if_addrlist     if_addrhead
 #define        if_list         if_link

-#endif !__APPLE__
+#endif /* !__APPLE__ */

 
 
 #endif /* PRIVATE */
 
 
 #endif /* PRIVATE */


@@ -544,9 +582,9 @@ if_enq_drop(struct ifqueue *ifq, struct mbuf *m)
 
 #ifdef MT_HEADER
 int    if_enq_drop(struct ifqueue *, struct mbuf *);
 
 #ifdef MT_HEADER
 int    if_enq_drop(struct ifqueue *, struct mbuf *);

-#endif MT_HEADER
+#endif /* MT_HEADER */

 
 

-#endif defined(__GNUC__) && defined(MT_HEADER)
+#endif /* defined(__GNUC__) && defined(MT_HEADER) */

 
 #endif /* KERNEL_PRIVATE */
 
 
 #endif /* KERNEL_PRIVATE */
 


@@ -565,21 +603,29 @@ struct ifaddr {
        struct  sockaddr *ifa_netmask;  /* used to determine subnet */
        struct  ifnet *ifa_ifp;         /* back-pointer to interface */
        TAILQ_ENTRY(ifaddr) ifa_link;   /* queue macro glue */
        struct  sockaddr *ifa_netmask;  /* used to determine subnet */
        struct  ifnet *ifa_ifp;         /* back-pointer to interface */
        TAILQ_ENTRY(ifaddr) ifa_link;   /* queue macro glue */

-       void    (*ifa_rtrequest)        /* check or clean routes (+ or -)'d */
-               (int, struct rtentry *, struct sockaddr *);
-       u_short ifa_flags;              /* mostly rt_flags for cloning */
-       int     ifa_refcnt;/* 32bit ref count, use ifaref, ifafree */
-       int     ifa_metric;             /* cost of going out this interface */
-#ifdef notdef
-       struct  rtentry *ifa_rt;        /* XXXX for ROUTETOIF ????? */
-#endif
-       int (*ifa_claim_addr)           /* check if an addr goes to this if */
-               (struct ifaddr *, const struct sockaddr *);
-       u_long  ifa_debug;              /* debug flags */
+       void (*ifa_rtrequest)           /* check or clean routes (+ or -)'d */
+           (int, struct rtentry *, struct sockaddr *);
+       uint32_t ifa_flags;             /* mostly rt_flags for cloning */
+       int32_t ifa_refcnt;             /* ref count, use ifaref, ifafree */
+       int32_t ifa_metric;             /* cost of going out this interface */
+       void (*ifa_free)(struct ifaddr *); /* callback fn for freeing */
+       void (*ifa_trace)               /* callback fn for tracing refs */
+           (struct ifaddr *, int);
+       uint32_t ifa_debug;             /* debug flags */

 };
 };

+
+/*
+ * Valid values for ifa_flags
+ */

 #define        IFA_ROUTE       RTF_UP          /* route installed (0x1) */
 #define        IFA_CLONING     RTF_CLONING     /* (0x100) */
 #define        IFA_ROUTE       RTF_UP          /* route installed (0x1) */
 #define        IFA_CLONING     RTF_CLONING     /* (0x100) */

-#define IFA_ATTACHED   0x1             /* ifa_debug: IFA is attached to an interface */
+
+/*
+ * Valid values for ifa_debug
+ */
+#define        IFD_ATTACHED    0x1             /* attached to an interface */
+#define        IFD_ALLOC       0x2             /* dynamically allocated */
+#define        IFD_DEBUG       0x4             /* has debugging info */

 
 #endif /* PRIVATE */
 
 
 #endif /* PRIVATE */
 


@@ -653,7 +699,7 @@ int ifioctllocked(struct socket *, u_long, caddr_t, struct proc *);
 struct ifnet *ifunit(const char *);
 struct  ifnet *if_withname(struct sockaddr *);
 
 struct ifnet *ifunit(const char *);
 struct  ifnet *if_withname(struct sockaddr *);
 

-void   if_clone_attach(struct if_clone *);
+int    if_clone_attach(struct if_clone *);

 void   if_clone_detach(struct if_clone *);
 
 void   ifnet_lock_assert(struct ifnet *ifp, int what);
 void   if_clone_detach(struct if_clone *);
 
 void   ifnet_lock_assert(struct ifnet *ifp, int what);


@@ -687,7 +733,8 @@ void        ifaref(struct ifaddr *);
 
 struct ifmultiaddr *ifmaof_ifpforaddr(const struct sockaddr *, struct ifnet *);
 
 
 struct ifmultiaddr *ifmaof_ifpforaddr(const struct sockaddr *, struct ifnet *);
 

-int    ifa_foraddr(unsigned int addr);
+extern struct in_ifaddr *ifa_foraddr(unsigned int);
+extern struct in_ifaddr *ifa_foraddr_scoped(unsigned int, unsigned int);

 
 #ifdef BSD_KERNEL_PRIVATE
 enum {
 
 #ifdef BSD_KERNEL_PRIVATE
 enum {