Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / uapi / linux / if_pppol2tp.h

diff --git a/kernel/include/uapi/linux/if_pppol2tp.h b/kernel/include/uapi/linux/if_pppol2tp.h
new file mode 100644 (file)
index 0000000..163e8ad
--- /dev/null
+++ b/kernel/include/uapi/linux/if_pppol2tp.h
@@ -0,0 +1,104 @@
+/***************************************************************************
+ * Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661)
+ *
+ * This file supplies definitions required by the PPP over L2TP driver
+ * (l2tp_ppp.c).  All version information wrt this file is located in l2tp_ppp.c
+ *
+ * License:
+ *             This program is free software; you can redistribute it and/or
+ *             modify it under the terms of the GNU General Public License
+ *             as published by the Free Software Foundation; either version
+ *             2 of the License, or (at your option) any later version.
+ *
+ */
+
+#ifndef _UAPI__LINUX_IF_PPPOL2TP_H
+#define _UAPI__LINUX_IF_PPPOL2TP_H
+
+#include <linux/types.h>
+
+
+/* Structure used to connect() the socket to a particular tunnel UDP
+ * socket over IPv4.
+ */
+struct pppol2tp_addr {
+       __kernel_pid_t  pid;            /* pid that owns the fd.
+                                        * 0 => current */
+       int     fd;                     /* FD of UDP socket to use */
+
+       struct sockaddr_in addr;        /* IP address and port to send to */
+
+       __u16 s_tunnel, s_session;      /* For matching incoming packets */
+       __u16 d_tunnel, d_session;      /* For sending outgoing packets */
+};
+
+/* Structure used to connect() the socket to a particular tunnel UDP
+ * socket over IPv6.
+ */
+struct pppol2tpin6_addr {
+       __kernel_pid_t  pid;            /* pid that owns the fd.
+                                        * 0 => current */
+       int     fd;                     /* FD of UDP socket to use */
+
+       __u16 s_tunnel, s_session;      /* For matching incoming packets */
+       __u16 d_tunnel, d_session;      /* For sending outgoing packets */
+
+       struct sockaddr_in6 addr;       /* IP address and port to send to */
+};
+
+/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
+ * bits. So we need a different sockaddr structure.
+ */
+struct pppol2tpv3_addr {
+       __kernel_pid_t  pid;            /* pid that owns the fd.
+                                        * 0 => current */
+       int     fd;                     /* FD of UDP or IP socket to use */
+
+       struct sockaddr_in addr;        /* IP address and port to send to */
+
+       __u32 s_tunnel, s_session;      /* For matching incoming packets */
+       __u32 d_tunnel, d_session;      /* For sending outgoing packets */
+};
+
+struct pppol2tpv3in6_addr {
+       __kernel_pid_t  pid;            /* pid that owns the fd.
+                                        * 0 => current */
+       int     fd;                     /* FD of UDP or IP socket to use */
+
+       __u32 s_tunnel, s_session;      /* For matching incoming packets */
+       __u32 d_tunnel, d_session;      /* For sending outgoing packets */
+
+       struct sockaddr_in6 addr;       /* IP address and port to send to */
+};
+
+/* Socket options:
+ * DEBUG       - bitmask of debug message categories
+ * SENDSEQ     - 0 => don't send packets with sequence numbers
+ *               1 => send packets with sequence numbers
+ * RECVSEQ     - 0 => receive packet sequence numbers are optional
+ *               1 => drop receive packets without sequence numbers
+ * LNSMODE     - 0 => act as LAC.
+ *               1 => act as LNS.
+ * REORDERTO   - reorder timeout (in millisecs). If 0, don't try to reorder.
+ */
+enum {
+       PPPOL2TP_SO_DEBUG       = 1,
+       PPPOL2TP_SO_RECVSEQ     = 2,
+       PPPOL2TP_SO_SENDSEQ     = 3,
+       PPPOL2TP_SO_LNSMODE     = 4,
+       PPPOL2TP_SO_REORDERTO   = 5,
+};
+
+/* Debug message categories for the DEBUG socket option */
+enum {
+       PPPOL2TP_MSG_DEBUG      = (1 << 0),     /* verbose debug (if
+                                                * compiled in) */
+       PPPOL2TP_MSG_CONTROL    = (1 << 1),     /* userspace - kernel
+                                                * interface */
+       PPPOL2TP_MSG_SEQ        = (1 << 2),     /* sequence numbers */
+       PPPOL2TP_MSG_DATA       = (1 << 3),     /* data packets */
+};
+
+
+
+#endif /* _UAPI__LINUX_IF_PPPOL2TP_H */