cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / ppp-comp.h

diff --git a/i686-linux-gnu-4.7/usr/include/linux/ppp-comp.h b/i686-linux-gnu-4.7/usr/include/linux/ppp-comp.h
new file mode 100644 (file)
index 0000000..22da3c1
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/linux/ppp-comp.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * ppp-comp.h - Definitions for doing PPP packet compression.
+ *
+ * Copyright 1994-1998 Paul Mackerras.
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  version 2 as published by the Free Software Foundation.
+ */
+#ifndef _NET_PPP_COMP_H
+#define _NET_PPP_COMP_H
+
+
+/*
+ * CCP codes.
+ */
+
+#define CCP_CONFREQ    1
+#define CCP_CONFACK    2
+#define CCP_TERMREQ    5
+#define CCP_TERMACK    6
+#define CCP_RESETREQ   14
+#define CCP_RESETACK   15
+
+/*
+ * Max # bytes for a CCP option
+ */
+
+#define CCP_MAX_OPTION_LENGTH  32
+
+/*
+ * Parts of a CCP packet.
+ */
+
+#define CCP_CODE(dp)           ((dp)[0])
+#define CCP_ID(dp)             ((dp)[1])
+#define CCP_LENGTH(dp)         (((dp)[2] << 8) + (dp)[3])
+#define CCP_HDRLEN             4
+
+#define CCP_OPT_CODE(dp)       ((dp)[0])
+#define CCP_OPT_LENGTH(dp)     ((dp)[1])
+#define CCP_OPT_MINLEN         2
+
+/*
+ * Definitions for BSD-Compress.
+ */
+
+#define CI_BSD_COMPRESS                21      /* config. option for BSD-Compress */
+#define CILEN_BSD_COMPRESS     3       /* length of config. option */
+
+/* Macros for handling the 3rd byte of the BSD-Compress config option. */
+#define BSD_NBITS(x)           ((x) & 0x1F)    /* number of bits requested */
+#define BSD_VERSION(x)         ((x) >> 5)      /* version of option format */
+#define BSD_CURRENT_VERSION    1               /* current version number */
+#define BSD_MAKE_OPT(v, n)     (((v) << 5) | (n))
+
+#define BSD_MIN_BITS           9       /* smallest code size supported */
+#define BSD_MAX_BITS           15      /* largest code size supported */
+
+/*
+ * Definitions for Deflate.
+ */
+
+#define CI_DEFLATE             26      /* config option for Deflate */
+#define CI_DEFLATE_DRAFT       24      /* value used in original draft RFC */
+#define CILEN_DEFLATE          4       /* length of its config option */
+
+#define DEFLATE_MIN_SIZE       9
+#define DEFLATE_MAX_SIZE       15
+#define DEFLATE_METHOD_VAL     8
+#define DEFLATE_SIZE(x)                (((x) >> 4) + 8)
+#define DEFLATE_METHOD(x)      ((x) & 0x0F)
+#define DEFLATE_MAKE_OPT(w)    ((((w) - 8) << 4) + DEFLATE_METHOD_VAL)
+#define DEFLATE_CHK_SEQUENCE   0
+
+/*
+ * Definitions for MPPE.
+ */
+
+#define CI_MPPE                18      /* config option for MPPE */
+#define CILEN_MPPE              6      /* length of config option */
+
+/*
+ * Definitions for other, as yet unsupported, compression methods.
+ */
+
+#define CI_PREDICTOR_1         1       /* config option for Predictor-1 */
+#define CILEN_PREDICTOR_1      2       /* length of its config option */
+#define CI_PREDICTOR_2         2       /* config option for Predictor-2 */
+#define CILEN_PREDICTOR_2      2       /* length of its config option */
+
+
+#endif /* _NET_PPP_COMP_H */