xnu-4570.20.62.tar.gz

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

diff --git a/bsd/net/bpf.h b/bsd/net/bpf.h
index 00e3ac5d80a13cc0e6b8115b5dff14a11a6ef39b..ff4eb1bfff8b12defc4bfa6f4564615d59cc7c68 100644 (file)
--- a/bsd/net/bpf.h
+++ b/bsd/net/bpf.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2017 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -206,7 +206,12 @@ struct bpf_version {
 #define        BIOCSETFNR64    _IOW('B',126, struct bpf_program64)
 #define        BIOCSETFNR32    _IOW('B',126, struct bpf_program32)
 #endif /* KERNEL_PRIVATE */
-
+#ifdef PRIVATE
+#define        BIOCGWANTPKTAP  _IOR('B', 127, u_int)
+#define        BIOCSWANTPKTAP  _IOWR('B', 127, u_int)
+#define BIOCSHEADDROP   _IOW('B', 128, int)
+#define BIOCGHEADDROP   _IOR('B', 128, int)
+#endif /* PRIVATE */
 /*
  * Structure prepended to each packet.
  */
@@ -241,10 +246,16 @@ struct bpf_hdr_ext {
 #define BPF_HDR_EXT_FLAGS_DIR_OUT      0x0001
        pid_t           bh_pid;         /* process PID */
        char            bh_comm[MAXCOMLEN+1]; /* process command */
-       u_char          _bh_pad2[2];
+       u_char          _bh_pad2[1];
+       u_char          bh_pktflags;
+#define        BPF_PKTFLAGS_TCP_REXMT  0x0001
+#define        BPF_PKTFLAGS_START_SEQ  0x0002
+#define        BPF_PKTFLAGS_LAST_PKT   0x0004
        u_char          bh_proto;       /* kernel reserved; 0 in userland */
        bpf_u_int32     bh_svc;         /* service class */
        bpf_u_int32     bh_flowid;      /* kernel reserved; 0 in userland */
+       bpf_u_int32     bh_unsent_bytes; /* unsent bytes at interface */
+       bpf_u_int32     bh_unsent_snd; /* unsent bytes at socket buffer */
 };
 
 #define BPF_CONTROL_NAME       "com.apple.net.bpf"
@@ -602,7 +613,11 @@ struct bpf_mtag {
 /*
  * For Apple private usage
  */
+#define DLT_USER0_APPLE_INTERNAL        DLT_USER0       /* rdar://12019509 */
+#define DLT_USER1_APPLE_INTERNAL        DLT_USER1       /* rdar://12019509 */
 #define DLT_PKTAP                      DLT_USER2       /* rdar://11779467 */
+#define DLT_USER3_APPLE_INTERNAL        DLT_USER3       /* rdar://19614531 */
+#define DLT_USER4_APPLE_INTERNAL       DLT_USER4       /* rdar://19614531 */
 #endif /* PRIVATE */
 
 /*
@@ -1188,8 +1203,12 @@ struct bpf_mtag {
  */
 #define DLT_NFC_LLCP           245
 
+/*
+ * USB packets, beginning with a Darwin (macOS, etc.) USB header.
+ */
+#define DLT_USB_DARWIN         266
 
-#define DLT_MATCHING_MAX       245     /* highest value in the "matching" range */
+#define DLT_MATCHING_MAX       266     /* highest value in the "matching" range */
 
 /*
  * The instruction encodings.
@@ -1284,6 +1303,21 @@ struct bpf_dltlist {
 struct ifnet;
 struct mbuf;
 
+#define BPF_PACKET_TYPE_MBUF   0
+
+struct bpf_packet {
+       int     bpfp_type;
+       void *  bpfp_header;            /* optional */
+       size_t  bpfp_header_length;
+       union {
+               struct mbuf     *bpfpu_mbuf;
+               void *          bpfpu_ptr;
+       } bpfp_u;
+#define bpfp_mbuf      bpfp_u.bpfpu_mbuf
+#define bpfp_ptr       bpfp_u.bpfpu_ptr
+       size_t  bpfp_total_length;      /* length including optional header */
+};
+
 extern int     bpf_validate(const struct bpf_insn *, int);
 extern void    bpfdetach(struct ifnet *);
 extern void    bpfilterattach(int);
@@ -1322,11 +1356,11 @@ typedef u_int32_t bpf_tap_mode;
                link type are specified. The callback is responsible for
                releasing the mbuf whether or not it returns an error.
        @param interface The interface the packet is being sent on.
-       @param dlt The data link type the bpf device is attached to.
+       @param data_link_type The data link type the bpf device is attached to.
        @param packet The packet to be sent.
  */
 typedef errno_t (*bpf_send_func)(ifnet_t interface, u_int32_t data_link_type,
-                                                                mbuf_t packet);
+    mbuf_t packet);
 
 /*!
        @typedef bpf_tap_func
@@ -1340,11 +1374,11 @@ typedef errno_t (*bpf_send_func)(ifnet_t interface, u_int32_t data_link_type,
                decreasing (tap in or out is stopping), the error will be
                ignored.
        @param interface The interface being tapped.
-       @param dlt The data link type being tapped.
+       @param data_link_type The data link type being tapped.
        @param direction The direction of the tap.
  */
 typedef errno_t (*bpf_tap_func)(ifnet_t interface, u_int32_t data_link_type,
-                                                               bpf_tap_mode direction);
+    bpf_tap_mode direction);
 
 /*!
        @function bpfattach
@@ -1390,21 +1424,21 @@ extern errno_t  bpf_attach(ifnet_t interface, u_int32_t data_link_type,
        @param dlt The data link type of the packet.
        @param packet The packet received.
        @param header An optional pointer to a header that will be prepended.
-       @param headerlen If the header was specified, the length of the header.
+       @param header_len If the header was specified, the length of the header.
  */
 extern void bpf_tap_in(ifnet_t interface, u_int32_t dlt, mbuf_t packet,
     void *header, size_t header_len);
 
 /*!
        @function bpf_tap_out
-       @discussion Call this function when your interface trasmits a
+       @discussion Call this function when your interface transmits a
                packet. This function will check if any bpf devices need a
                a copy of the packet.
        @param interface The interface the packet was or will be transmitted on.
        @param dlt The data link type of the packet.
        @param packet The packet received.
        @param header An optional pointer to a header that will be prepended.
-       @param headerlen If the header was specified, the length of the header.
+       @param header_len If the header was specified, the length of the header.
  */
 extern void bpf_tap_out(ifnet_t interface, u_int32_t dlt, mbuf_t packet,
     void *header, size_t header_len);