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-rw-r--r--include/uapi/linux/x25.h153
1 files changed, 153 insertions, 0 deletions
diff --git a/include/uapi/linux/x25.h b/include/uapi/linux/x25.h
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+++ b/include/uapi/linux/x25.h
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+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * These are the public elements of the Linux kernel X.25 implementation.
+ *
+ * History
+ * mar/20/00 Daniela Squassoni Disabling/enabling of facilities
+ * negotiation.
+ * apr/02/05 Shaun Pereira Selective sub address matching with
+ * call user data
+ */
+
+#ifndef X25_KERNEL_H
+#define X25_KERNEL_H
+
+#include <linux/types.h>
+#include <linux/socket.h>
+
+#define SIOCX25GSUBSCRIP (SIOCPROTOPRIVATE + 0)
+#define SIOCX25SSUBSCRIP (SIOCPROTOPRIVATE + 1)
+#define SIOCX25GFACILITIES (SIOCPROTOPRIVATE + 2)
+#define SIOCX25SFACILITIES (SIOCPROTOPRIVATE + 3)
+#define SIOCX25GCALLUSERDATA (SIOCPROTOPRIVATE + 4)
+#define SIOCX25SCALLUSERDATA (SIOCPROTOPRIVATE + 5)
+#define SIOCX25GCAUSEDIAG (SIOCPROTOPRIVATE + 6)
+#define SIOCX25SCUDMATCHLEN (SIOCPROTOPRIVATE + 7)
+#define SIOCX25CALLACCPTAPPRV (SIOCPROTOPRIVATE + 8)
+#define SIOCX25SENDCALLACCPT (SIOCPROTOPRIVATE + 9)
+#define SIOCX25GDTEFACILITIES (SIOCPROTOPRIVATE + 10)
+#define SIOCX25SDTEFACILITIES (SIOCPROTOPRIVATE + 11)
+#define SIOCX25SCAUSEDIAG (SIOCPROTOPRIVATE + 12)
+
+/*
+ * Values for {get,set}sockopt.
+ */
+#define X25_QBITINCL 1
+
+/*
+ * X.25 Packet Size values.
+ */
+#define X25_PS16 4
+#define X25_PS32 5
+#define X25_PS64 6
+#define X25_PS128 7
+#define X25_PS256 8
+#define X25_PS512 9
+#define X25_PS1024 10
+#define X25_PS2048 11
+#define X25_PS4096 12
+
+/*
+ * An X.121 address, it is held as ASCII text, null terminated, up to 15
+ * digits and a null terminator.
+ */
+struct x25_address {
+ char x25_addr[16];
+};
+
+/*
+ * Linux X.25 Address structure, used for bind, and connect mostly.
+ */
+struct sockaddr_x25 {
+ __kernel_sa_family_t sx25_family; /* Must be AF_X25 */
+ struct x25_address sx25_addr; /* X.121 Address */
+};
+
+/*
+ * DTE/DCE subscription options.
+ *
+ * As this is missing lots of options, user should expect major
+ * changes of this structure in 2.5.x which might break compatibilty.
+ * The somewhat ugly dimension 200-sizeof() is needed to maintain
+ * backward compatibility.
+ */
+struct x25_subscrip_struct {
+ char device[200-sizeof(unsigned long)];
+ unsigned long global_facil_mask; /* 0 to disable negotiation */
+ unsigned int extended;
+};
+
+/* values for above global_facil_mask */
+
+#define X25_MASK_REVERSE 0x01
+#define X25_MASK_THROUGHPUT 0x02
+#define X25_MASK_PACKET_SIZE 0x04
+#define X25_MASK_WINDOW_SIZE 0x08
+
+#define X25_MASK_CALLING_AE 0x10
+#define X25_MASK_CALLED_AE 0x20
+
+
+/*
+ * Routing table control structure.
+ */
+struct x25_route_struct {
+ struct x25_address address;
+ unsigned int sigdigits;
+ char device[200];
+};
+
+/*
+ * Facilities structure.
+ */
+struct x25_facilities {
+ unsigned int winsize_in, winsize_out;
+ unsigned int pacsize_in, pacsize_out;
+ unsigned int throughput;
+ unsigned int reverse;
+};
+
+/*
+* ITU DTE facilities
+* Only the called and calling address
+* extension are currently implemented.
+* The rest are in place to avoid the struct
+* changing size if someone needs them later
+*/
+
+struct x25_dte_facilities {
+ __u16 delay_cumul;
+ __u16 delay_target;
+ __u16 delay_max;
+ __u8 min_throughput;
+ __u8 expedited;
+ __u8 calling_len;
+ __u8 called_len;
+ __u8 calling_ae[20];
+ __u8 called_ae[20];
+};
+
+/*
+ * Call User Data structure.
+ */
+struct x25_calluserdata {
+ unsigned int cudlength;
+ unsigned char cuddata[128];
+};
+
+/*
+ * Call clearing Cause and Diagnostic structure.
+ */
+struct x25_causediag {
+ unsigned char cause;
+ unsigned char diagnostic;
+};
+
+/*
+ * Further optional call user data match length selection
+ */
+struct x25_subaddr {
+ unsigned int cudmatchlength;
+};
+
+#endif