Merge tag 'android-4.3_r2.1' into cm-10.2cm-10.2.1cm-10.2.0cm-10.2-M1stable/cm-10.2cm-10.2

Android 4.3 release 2.1

1 files changed, 45 insertions, 0 deletions

diff --git a/icmp.h b/icmp.h
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+++ b/icmp.h
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+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * icmp.c - convenience functions for translating ICMP and ICMPv6 packets.
+ */
+
+#ifndef __ICMP_H__
+#define __ICMP_H__
+
+#include <stdint.h>
+
+// Guesses the number of hops a received packet has traversed based on its TTL.
+uint8_t icmp_guess_ttl(uint8_t ttl);
+
+// Determines whether an ICMP type is an error message.
+int is_icmp_error(uint8_t type);
+
+// Determines whether an ICMPv6 type is an error message.
+int is_icmp6_error(uint8_t type);
+
+// Maps ICMP types to ICMPv6 types. Partial implementation of RFC 6145, section 4.2.
+uint8_t icmp_to_icmp6_type(uint8_t type, uint8_t code);
+
+// Maps ICMP codes to ICMPv6 codes. Partial implementation of RFC 6145, section 4.2.
+uint8_t icmp_to_icmp6_code(uint8_t type, uint8_t code);
+
+// Maps ICMPv6 types to ICMP types. Partial implementation of RFC 6145, section 5.2.
+uint8_t icmp6_to_icmp_type(uint8_t type, uint8_t code);
+
+// Maps ICMPv6 codes to ICMP codes. Partial implementation of RFC 6145, section 5.2.
+uint8_t icmp6_to_icmp_code(uint8_t type, uint8_t code);
+
+#endif /* __ICMP_H__ */