Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 507 insertions, 0 deletions

diff --git a/src/util-proto-name.c b/src/util-proto-name.c
new file mode 100644
index 0000000..41423c9
--- /dev/null
+++ b/src/util-proto-name.c
@@ -0,0 +1,507 @@
+/* Copyright (C) 2007-2022 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Gurvinder Singh <gurvindersinghdahiya@gmail.com>
+ *
+ * File to provide the protocol names based on protocol numbers defined by the
+ * IANA
+ */
+
+#include "suricata-common.h"
+#include "util-hash-string.h"
+#include "util-proto-name.h"
+#include "util-debug.h"
+
+#ifdef UNITTESTS
+#include "util-unittest.h"
+#endif
+
+/** Lookup array to hold the information related to known protocol
+ *  values
+ */
+
+const char *known_proto[256] = {
+    "HOPOPT",   /* 0x00: 0 - IPv6 Hop-by-Hop Option	RFC 8200 */
+    "ICMP",     /* 0x01: 1 - Internet Control Message Protocol	RFC 792 */
+    "IGMP",     /* 0x02: 2 - Internet Group Management Protocol	RFC 1112 */
+    "GGP",      /* 0x03: 3 - Gateway-to-Gateway Protocol	RFC 823 */
+    "IP-in-IP", /* 0x04: 4 - IP in IP (encapsulation)	RFC 2003 */
+    "ST",       /* 0x05: 5 - Internet Stream Protocol	RFC 1190, RFC 1819 */
+    "TCP",      /* 0x06: 6 - Transmission Control Protocol	RFC 793 */
+    "CBT",      /* 0x07: 7 - Core-based trees	RFC 2189 */
+    "EGP",      /* 0x08: 8 - Exterior Gateway Protocol	RFC 888 */
+    "IGP", /* 0x09: 9 - Interior Gateway Protocol (any private interior gateway, for example Cisco's
+              IGRP) */
+    "BBN-RCC-MON", /* 0x0A: 10 - BBN RCC Monitoring */
+    "NVP-II",      /* 0x0B: 11 - Network Voice Protocol	RFC 741 */
+    "PUP",         /* 0x0C: 12 - Xerox PUP */
+    "ARGUS",       /* 0x0D: 13 - ARGUS */
+    "EMCON",       /* 0x0E: 14 - EMCON */
+    "XNET",        /* 0x0F: 15 - Cross Net Debugger	IEN 158[2] */
+    "CHAOS",       /* 0x10: 16 - Chaos */
+    "UDP",         /* 0x11: 17 - User Datagram Protocol	RFC 768 */
+    "MUX",         /* 0x12: 18 - Multiplexing	IEN 90[3] */
+    "DCN-MEAS",    /* 0x13: 19 - DCN Measurement Subsystems */
+    "HMP",         /* 0x14: 20 - Host Monitoring Protocol	RFC 869 */
+    "PRM",         /* 0x15: 21 - Packet Radio Measurement */
+    "XNS-IDP",     /* 0x16: 22 - XEROX NS IDP */
+    "TRUNK-1",     /* 0x17: 23 - Trunk-1 */
+    "TRUNK-2",     /* 0x18: 24 - Trunk-2 */
+    "LEAF-1",      /* 0x19: 25 - Leaf-1 */
+    "LEAF-2",      /* 0x1A: 26 - Leaf-2 */
+    "RDP",         /* 0x1B: 27 - Reliable Data Protocol	RFC 908 */
+    "IRTP",        /* 0x1C: 28 - Internet Reliable Transaction Protocol	RFC 938 */
+    "ISO-TP4",     /* 0x1D: 29 - ISO Transport Protocol Class 4	RFC 905 */
+    "NETBLT",      /* 0x1E: 30 - Bulk Data Transfer Protocol	RFC 998 */
+    "MFE-NSP",     /* 0x1F: 31 - MFE Network Services Protocol */
+    "MERIT-INP",   /* 0x20: 32 - MERIT Internodal Protocol */
+    "DCCP",        /* 0x21: 33 - Datagram Congestion Control Protocol	RFC 4340 */
+    "3PC",         /* 0x22: 34 - Third Party Connect Protocol */
+    "IDPR",        /* 0x23: 35 - Inter-Domain Policy Routing Protocol	RFC 1479 */
+    "XTP",         /* 0x24: 36 - Xpress Transport Protocol */
+    "DDP",         /* 0x25: 37 - Datagram Delivery Protocol */
+    "IDPR-CMTP",   /* 0x26: 38 - IDPR Control Message Transport Protocol */
+    "TP++",        /* 0x27: 39 - TP++ Transport Protocol */
+    "IL",          /* 0x28: 40 - IL Transport Protocol */
+    "IPv6",        /* 0x29: 41 - IPv6 Encapsulation	RFC 2473 */
+    "SDRP",        /* 0x2A: 42 - Source Demand Routing Protocol	RFC 1940 */
+    "IPv6-Route",  /* 0x2B: 43 - Routing Header for IPv6	RFC 8200 */
+    "IPv6-Frag",   /* 0x2C: 44 - Fragment Header for IPv6	RFC 8200 */
+    "IDRP",        /* 0x2D: 45 - Inter-Domain Routing Protocol */
+    "RSVP",        /* 0x2E: 46 - Resource Reservation Protocol	RFC 2205 */
+    "GRE",         /* 0x2F: 47 - Generic Routing Encapsulation	RFC 2784, RFC 2890 */
+    "DSR",         /* 0x30: 48 - Dynamic Source Routing Protocol	RFC 4728 */
+    "BNA",         /* 0x31: 49 - Burroughs Network Architecture */
+    "ESP",         /* 0x32: 50 - Encapsulating Security Payload	RFC 4303 */
+    "AH",          /* 0x33: 51 - Authentication Header	RFC 4302 */
+    "I-NLSP",      /* 0x34: 52 - Integrated Net Layer Security Protocol	TUBA */
+    "SwIPe",       /* 0x35: 53 - SwIPe	RFC 5237 */
+    "NARP",        /* 0x36: 54 - NBMA Address Resolution Protocol	RFC 1735 */
+    "MOBILE",      /* 0x37: 55 - IP Mobility (Min Encap)	RFC 2004 */
+    "TLSP",      /* 0x38: 56 - Transport Layer Security Protocol (using Kryptonet key management) */
+    "SKIP",      /* 0x39: 57 - Simple Key-Management for Internet Protocol	RFC 2356 */
+    "IPv6-ICMP", /* 0x3A: 58 - ICMP for IPv6	RFC 4443, RFC 4884 */
+    "IPv6-NoNxt",  /* 0x3B: 59 - No Next Header for IPv6	RFC 8200 */
+    "IPv6-Opts",   /* 0x3C: 60 - Destination Options for IPv6	RFC 8200 */
+    "Any",         /* 0x3D: 61 - host internal protocol */
+    "CFTP",        /* 0x3E: 62 - CFTP */
+    "Any",         /* 0x3F: 63 - local network */
+    "SAT-EXPAK",   /* 0x40: 64 - SATNET and Backroom EXPAK */
+    "KRYPTOLAN",   /* 0x41: 65 - Kryptolan */
+    "RVD",         /* 0x42: 66 - MIT Remote Virtual Disk Protocol */
+    "IPPC",        /* 0x43: 67 - Internet Pluribus Packet Core */
+    "Any",         /* 0x44: 68 - distributed file system */
+    "SAT-MON",     /* 0x45: 69 - SATNET Monitoring */
+    "VISA",        /* 0x46: 70 - VISA Protocol */
+    "IPCU",        /* 0x47: 71 - Internet Packet Core Utility */
+    "CPNX",        /* 0x48: 72 - Computer Protocol Network Executive */
+    "CPHB",        /* 0x49: 73 - Computer Protocol Heart Beat */
+    "WSN",         /* 0x4A: 74 - Wang Span Network */
+    "PVP",         /* 0x4B: 75 - Packet Video Protocol */
+    "BR-SAT-MON",  /* 0x4C: 76 - Backroom SATNET Monitoring */
+    "SUN-ND",      /* 0x4D: 77 - SUN ND PROTOCOL-Temporary */
+    "WB-MON",      /* 0x4E: 78 - WIDEBAND Monitoring */
+    "WB-EXPAK",    /* 0x4F: 79 - WIDEBAND EXPAK */
+    "ISO-IP",      /* 0x50: 80 - International Organization for Standardization Internet Protocol */
+    "VMTP",        /* 0x51: 81 - Versatile Message Transaction Protocol	RFC 1045 */
+    "SECURE-VMTP", /* 0x52: 82 - Secure Versatile Message Transaction Protocol	RFC 1045 */
+    "VINES",       /* 0x53: 83 - VINES */
+    "TTP",         /* 0x54: 84 - TTP */
+    "NSFNET-IGP",  /* 0x55: 85 - NSFNET-IGP */
+    "DGP",         /* 0x56: 86 - Dissimilar Gateway Protocol */
+    "TCF",         /* 0x57: 87 - TCF */
+    "EIGRP",       /* 0x58: 88 - EIGRP	Informational RFC 7868 */
+    "OSPF",        /* 0x59: 89 - Open Shortest Path First	RFC 2328 */
+    "Sprite-RPC",  /* 0x5A: 90 - Sprite RPC Protocol */
+    "LARP",        /* 0x5B: 91 - Locus Address Resolution Protocol */
+    "MTP",         /* 0x5C: 92 - Multicast Transport Protocol */
+    "AX.25",       /* 0x5D: 93 - AX.25 */
+    "OS",          /* 0x5E: 94 - KA9Q NOS compatible IP over IP tunneling */
+    "MICP",        /* 0x5F: 95 - Mobile Internetworking Control Protocol */
+    "SCC-SP",      /* 0x60: 96 - Semaphore Communications Sec. Pro */
+    "ETHERIP",     /* 0x61: 97 - Ethernet-within-IP Encapsulation	RFC 3378 */
+    "ENCAP",       /* 0x62: 98 - Encapsulation Header	RFC 1241 */
+    "Any",         /* 0x63: 99 - private encryption scheme */
+    "GMTP",        /* 0x64: 100 - GMTP */
+    "IFMP",        /* 0x65: 101 - Ipsilon Flow Management Protocol */
+    "PNNI",        /* 0x66: 102 - PNNI over IP */
+    "PIM",         /* 0x67: 103 - Protocol Independent Multicast */
+    "ARIS",        /* 0x68: 104 - IBM's ARIS (Aggregate Route IP Switching) Protocol */
+    "SCPS",        /* 0x69: 105 - SCPS (Space Communications Protocol Standards)	SCPS-TP[4] */
+    "QNX",         /* 0x6A: 106 - QNX */
+    "A/N",         /* 0x6B: 107 - Active Networks */
+    "IPComp",      /* 0x6C: 108 - IP Payload Compression Protocol	RFC 3173 */
+    "SNP",         /* 0x6D: 109 - Sitara Networks Protocol */
+    "Compaq-Peer", /* 0x6E: 110 - Compaq Peer Protocol */
+    "IPX-in-IP",   /* 0x6F: 111 - IPX in IP */
+    "VRRP",  /* 0x70: 112 - Virtual Router Redundancy Protocol, Common Address Redundancy Protocol
+                (not IANA assigned)	VRRP:RFC 3768 */
+    "PGM",   /* 0x71: 113 - PGM Reliable Transport Protocol	RFC 3208 */
+    "Any",   /* 0x72: 114 - 0-hop protocol */
+    "L2TP",  /* 0x73: 115 - Layer Two Tunneling Protocol Version 3	RFC 3931 */
+    "DDX",   /* 0x74: 116 - D-II Data Exchange (DDX) */
+    "IATP",  /* 0x75: 117 - Interactive Agent Transfer Protocol */
+    "STP",   /* 0x76: 118 - Schedule Transfer Protocol */
+    "SRP",   /* 0x77: 119 - SpectraLink Radio Protocol */
+    "UTI",   /* 0x78: 120 - Universal Transport Interface Protocol */
+    "SMP",   /* 0x79: 121 - Simple Message Protocol */
+    "SM",    /* 0x7A: 122 - Simple Multicast Protocol	draft-perlman-simple-multicast-03 */
+    "PTP",   /* 0x7B: 123 - Performance Transparency Protocol */
+    "IS-IS", /* 0x7C: 124 - over IPv4	Intermediate System to Intermediate System (IS-IS) Protocol
+                over IPv4	RFC 1142 and RFC 1195 */
+    "FIRE",  /* 0x7D: 125 - Flexible Intra-AS Routing Environment */
+    "CRTP",  /* 0x7E: 126 - Combat Radio Transport Protocol */
+    "CRUDP", /* 0x7F: 127 - Combat Radio User Datagram */
+    "SSCOPMCE", /* 0x80: 128 - Service-Specific Connection-Oriented Protocol in a Multilink and
+                   Connectionless Environment	ITU-T Q.2111 (1999) */
+    "IPLT",     /* 0x81: 129 -  */
+    "SPS",      /* 0x82: 130 - Secure Packet Shield */
+    "PIPE",     /* 0x83: 131 - Private IP Encapsulation within IP	Expired I-D
+                   draft-petri-mobileip-pipe-00.txt */
+    "SCTP",     /* 0x84: 132 - Stream Control Transmission Protocol	RFC 4960 */
+    "FC",       /* 0x85: 133 - Fibre Channel */
+    "RSVP-E2E-IGNORE", /* 0x86: 134 - Reservation Protocol (RSVP) End-to-End Ignore	RFC 3175 */
+    "Mobility",        /* 0x87: 135 - Header	Mobility Extension Header for IPv6	RFC 6275 */
+    "UDPLite",         /* 0x88: 136 - Lightweight User Datagram Protocol	RFC 3828 */
+    "MPLS-in-IP",      /* 0x89: 137 - Multiprotocol Label Switching Encapsulated in IP	RFC 4023,
+                          RFC      5332 */
+    "manet",           /* 0x8A: 138 - MANET Protocols	RFC 5498 */
+    "HIP",             /* 0x8B: 139 - Host Identity Protocol	RFC 5201 */
+    "Shim6",           /* 0x8C: 140 - Site Multihoming by IPv6 Intermediation	RFC 5533 */
+    "WESP",            /* 0x8D: 141 - Wrapped Encapsulating Security Payload	RFC 5840 */
+    "ROHC",            /* 0x8E: 142 - Robust Header Compression	RFC 5856 */
+    "Ethernet" /* 0x8F: 143 - IPv6 Segment Routing (TEMPORARY - registered 2020-01-31, expires
+                  2021-01-31) */
+};
+
+/*
+ * Protocol name aliases
+ */
+const char *proto_aliases[256] = {
+    "ip",      /* 0x00: 0 - IPv6 Hop-by-Hop Option	RFC 8200 */
+    "icmp",    /* 0x01: 1 - Internet Control Message Protocol	RFC 792 */
+    "igmp",    /* 0x02: 2 - Internet Group Management Protocol	RFC 1112 */
+    "ggp",     /* 0x03: 3 - Gateway-to-Gateway Protocol	RFC 823 */
+    "ipencap", /* 0x04: 4 - IP in IP (encapsulation)	RFC 2003 */
+    "st",      /* 0x05: 5 - Internet Stream Protocol	RFC 1190, RFC 1819 */
+    "tcp",     /* 0x06: 6 - Transmission Control Protocol	RFC 793 */
+    NULL,      /* 0x07: 7 - Core-based trees	RFC 2189 */
+    "egp",     /* 0x08: 8 - Exterior Gateway Protocol	RFC 888 */
+    "igp", /* 0x09: 9 - Interior Gateway Protocol (any private interior gateway, for example Cisco's
+         IGRP) */
+    NULL,  /* 0x0A: 10 - BBN RCC Monitoring */
+    NULL,  /* 0x0B: 11 - Network Voice Protocol	RFC 741 */
+    "pup", /* 0x0C: 12 - Xerox PUP */
+    NULL,  /* 0x0D: 13 - ARGUS */
+    NULL,  /* 0x0E: 14 - EMCON */
+    NULL,  /* 0x0F: 15 - Cross Net Debugger	IEN 158[2] */
+    NULL,  /* 0x10: 16 - Chaos */
+    "udp", /* 0x11: 17 - User Datagram Protocol	RFC 768 */
+    NULL,  /* 0x12: 18 - Multiplexing	IEN 90[3] */
+    NULL,  /* 0x13: 19 - DCN Measurement Subsystems */
+    "hmp", /* 0x14: 20 - Host Monitoring Protocol	RFC 869 */
+    NULL,  /* 0x15: 21 - Packet Radio Measurement */
+    "xns-idp",    /* 0x16: 22 - XEROX NS IDP */
+    NULL,         /* 0x17: 23 - Trunk-1 */
+    NULL,         /* 0x18: 24 - Trunk-2 */
+    NULL,         /* 0x19: 25 - Leaf-1 */
+    NULL,         /* 0x1A: 26 - Leaf-2 */
+    "rdp",        /* 0x1B: 27 - Reliable Data Protocol	RFC 908 */
+    NULL,         /* 0x1C: 28 - Internet Reliable Transaction Protocol	RFC 938 */
+    "iso-tp4",    /* 0x1D: 29 - ISO Transport Protocol Class 4	RFC 905 */
+    NULL,         /* 0x1E: 30 - Bulk Data Transfer Protocol	RFC 998 */
+    NULL,         /* 0x1F: 31 - MFE Network Services Protocol */
+    NULL,         /* 0x20: 32 - MERIT Internodal Protocol */
+    "dccp",       /* 0x21: 33 - Datagram Congestion Control Protocol	RFC 4340 */
+    NULL,         /* 0x22: 34 - Third Party Connect Protocol */
+    NULL,         /* 0x23: 35 - Inter-Domain Policy Routing Protocol	RFC 1479 */
+    "xtp",        /* 0x24: 36 - Xpress Transport Protocol */
+    "ddp",        /* 0x25: 37 - Datagram Delivery Protocol */
+    "idpr-cmtp",  /* 0x26: 38 - IDPR Control Message Transport Protocol */
+    NULL,         /* 0x27: 39 - TP++ Transport Protocol */
+    NULL,         /* 0x28: 40 - IL Transport Protocol */
+    "ipV6",       /* 0x29: 41 - IPv6 Encapsulation	RFC 2473 */
+    NULL,         /* 0x2A: 42 - Source Demand Routing Protocol	RFC 1940 */
+    "ipv6-route", /* 0x2B: 43 - Routing Header for IPv6	RFC 8200 */
+    "ipv6-frag",  /* 0x2C: 44 - Fragment Header for IPv6	RFC 8200 */
+    "idrp",       /* 0x2D: 45 - Inter-Domain Routing Protocol */
+    "rsvp",       /* 0x2E: 46 - Resource Reservation Protocol	RFC 2205 */
+    "gre",        /* 0x2F: 47 - Generic Routing Encapsulation	RFC 2784, RFC 2890 */
+    NULL,         /* 0x30: 48 - Dynamic Source Routing Protocol	RFC 4728 */
+    NULL,         /* 0x31: 49 - Burroughs Network Architecture */
+    "esp",        /* 0x32: 50 - Encapsulating Security Payload	RFC 4303 */
+    "ah",         /* 0x33: 51 - Authentication Header	RFC 4302 */
+    NULL,         /* 0x34: 52 - Integrated Net Layer Security Protocol	TUBA */
+    NULL,         /* 0x35: 53 - SwIPe	RFC 5237 */
+    NULL,         /* 0x36: 54 - NBMA Address Resolution Protocol	RFC 1735 */
+    NULL,         /* 0x37: 55 - IP Mobility (Min Encap)	RFC 2004 */
+    NULL,        /* 0x38: 56 - Transport Layer Security Protocol (using Kryptonet key management) */
+    "skip",      /* 0x39: 57 - Simple Key-Management for Internet Protocol	RFC 2356 */
+    "ipv6-icmp", /* 0x3A: 58 - ICMP for IPv6	RFC 4443, RFC 4884 */
+    "ipv6-nonxt", /* 0x3B: 59 - No Next Header for IPv6	RFC 8200 */
+    "ipv6-opts",  /* 0x3C: 60 - Destination Options for IPv6	RFC 8200 */
+    NULL,         /* 0x3D: 61 - host internal protocol */
+    NULL,         /* 0x3E: 62 - CFTP */
+    NULL,         /* 0x3F: 63 - local network */
+    NULL,         /* 0x40: 64 - SATNET and Backroom EXPAK */
+    NULL,         /* 0x41: 65 - Kryptolan */
+    NULL,         /* 0x42: 66 - MIT Remote Virtual Disk Protocol */
+    NULL,         /* 0x43: 67 - Internet Pluribus Packet Core */
+    NULL,         /* 0x44: 68 - distributed file system */
+    NULL,         /* 0x45: 69 - SATNET Monitoring */
+    NULL,         /* 0x46: 70 - VISA Protocol */
+    NULL,         /* 0x47: 71 - Internet Packet Core Utility */
+    NULL,         /* 0x48: 72 - Computer Protocol Network Executive */
+    "cphb",       /* 0x49: 73 - Computer Protocol Heart Beat */
+    NULL,         /* 0x4A: 74 - Wang Span Network */
+    NULL,         /* 0x4B: 75 - Packet Video Protocol */
+    NULL,         /* 0x4C: 76 - Backroom SATNET Monitoring */
+    NULL,         /* 0x4D: 77 - SUN ND PROTOCOL-Temporary */
+    NULL,         /* 0x4E: 78 - WIDEBAND Monitoring */
+    NULL,         /* 0x4F: 79 - WIDEBAND EXPAK */
+    NULL,         /* 0x50: 80 - International Organization for Standardization Internet Protocol */
+    "vmtp",       /* 0x51: 81 - Versatile Message Transaction Protocol	RFC 1045 */
+    NULL,         /* 0x52: 82 - Secure Versatile Message Transaction Protocol	RFC 1045 */
+    NULL,         /* 0x53: 83 - VINES */
+    NULL,         /* 0x54: 84 - TTP */
+    NULL,         /* 0x55: 85 - NSFNET-IGP */
+    NULL,         /* 0x56: 86 - Dissimilar Gateway Protocol */
+    NULL,         /* 0x57: 87 - TCF */
+    "eigrp",      /* 0x58: 88 - EIGRP	Informational RFC 7868 */
+    "ospf",       /* 0x59: 89 - Open Shortest Path First	RFC 2328 */
+    NULL,         /* 0x5A: 90 - Sprite RPC Protocol */
+    NULL,         /* 0x5B: 91 - Locus Address Resolution Protocol */
+    NULL,         /* 0x5C: 92 - Multicast Transport Protocol */
+    "ax.25",      /* 0x5D: 93 - AX.25 */
+    "ipip",       /* 0x5E: 94 - KA9Q NOS compatible IP over IP tunneling */
+    NULL,         /* 0x5F: 95 - Mobile Internetworking Control Protocol */
+    NULL,         /* 0x60: 96 - Semaphore Communications Sec. Pro */
+    "etherip",    /* 0x61: 97 - Ethernet-within-IP Encapsulation	RFC 3378 */
+    "encap",      /* 0x62: 98 - Encapsulation Header	RFC 1241 */
+    NULL,         /* 0x63: 99 - private encryption scheme */
+    "GMTP",       /* 0x64: 100 - GMTP */
+    NULL,         /* 0x65: 101 - Ipsilon Flow Management Protocol */
+    NULL,         /* 0x66: 102 - PNNI over IP */
+    "pim",        /* 0x67: 103 - Protocol Independent Multicast */
+    NULL,         /* 0x68: 104 - IBM's ARIS (Aggregate Route IP Switching) Protocol */
+    NULL,         /* 0x69: 105 - SCPS (Space Communications Protocol Standards)	SCPS-TP[4] */
+    NULL,         /* 0x6A: 106 - QNX */
+    NULL,         /* 0x6B: 107 - Active Networks */
+    "ipcomp",     /* 0x6C: 108 - IP Payload Compression Protocol	RFC 3173 */
+    NULL,         /* 0x6D: 109 - Sitara Networks Protocol */
+    NULL,         /* 0x6E: 110 - Compaq Peer Protocol */
+    NULL,         /* 0x6F: 111 - IPX in IP */
+    "vrrp", /* 0x70: 112 - Virtual Router Redundancy Protocol, Common Address Redundancy Protocol
+            (not IANA assigned)	VRRP:RFC 3768 */
+    NULL,   /* 0x71: 113 - PGM Reliable Transport Protocol	RFC 3208 */
+    NULL,   /* 0x72: 114 - 0-hop protocol */
+    "l2tp", /* 0x73: 115 - Layer Two Tunneling Protocol Version 3	RFC 3931 */
+    NULL,   /* 0x74: 116 - D-II Data Exchange (DDX) */
+    NULL,   /* 0x75: 117 - Interactive Agent Transfer Protocol */
+    NULL,   /* 0x76: 118 - Schedule Transfer Protocol */
+    NULL,   /* 0x77: 119 - SpectraLink Radio Protocol */
+    NULL,   /* 0x78: 120 - Universal Transport Interface Protocol */
+    NULL,   /* 0x79: 121 - Simple Message Protocol */
+    NULL,   /* 0x7A: 122 - Simple Multicast Protocol	draft-perlman-simple-multicast-03 */
+    NULL,   /* 0x7B: 123 - Performance Transparency Protocol */
+    "isis", /* 0x7C: 124 - over IPv4	Intermediate System to Intermediate System (IS-IS) Protocol
+            over IPv4	RFC 1142 and RFC 1195 */
+    NULL,   /* 0x7D: 125 - Flexible Intra-AS Routing Environment */
+    NULL,   /* 0x7E: 126 - Combat Radio Transport Protocol */
+    NULL,   /* 0x7F: 127 - Combat Radio User Datagram */
+    NULL,   /* 0x80: 128 - Service-Specific Connection-Oriented Protocol in a Multilink and
+               Connectionless Environment	ITU-T Q.2111 (1999) */
+    NULL,   /* 0x81: 129 -  */
+    NULL,   /* 0x82: 130 - Secure Packet Shield */
+    NULL,   /* 0x83: 131 - Private IP Encapsulation within IP	Expired I-D
+               draft-petri-mobileip-pipe-00.txt */
+    "sctp", /* 0x84: 132 - Stream Control Transmission Protocol	RFC 4960 */
+    "fc",   /* 0x85: 133 - Fibre Channel */
+    NULL,   /* 0x86: 134 - Reservation Protocol (RSVP) End-to-End Ignore	RFC 3175 */
+    "mobility-header", /* 0x87: 135 - Header	Mobility Extension Header for IPv6	RFC 6275 */
+    "udplite",         /* 0x88: 136 - Lightweight User Datagram Protocol	RFC 3828 */
+    "mpls-in-ip",      /* 0x89: 137 - Multiprotocol Label Switching Encapsulated in IP	RFC 4023,
+                                RFC      5332 */
+    NULL,              /* 0x8A: 138 - MANET Protocols	RFC 5498 */
+    "hip",             /* 0x8B: 139 - Host Identity Protocol	RFC 5201 */
+    "shim6",           /* 0x8C: 140 - Site Multihoming by IPv6 Intermediation	RFC 5533 */
+    "wesp",            /* 0x8D: 141 - Wrapped Encapsulating Security Payload	RFC 5840 */
+    "rohc",            /* 0x8E: 142 - Robust Header Compression	RFC 5856 */
+    /* no aliases for 142-255 */
+};
+
+typedef struct ProtoNameHashEntry_ {
+    const char *name;
+    uint8_t number;
+} ProtoNameHashEntry;
+
+static HashTable *proto_ht = NULL;
+
+static uint32_t ProtoNameHashFunc(HashTable *ht, void *data, uint16_t datalen)
+{
+    /*
+     * datalen covers the entire struct -- only the proto name is hashed
+     * as the proto number is not used for lookups
+     */
+    ProtoNameHashEntry *p = (ProtoNameHashEntry *)data;
+    return StringHashDjb2((uint8_t *)p->name, strlen(p->name)) % ht->array_size;
+}
+
+static char ProtoNameHashCompareFunc(void *data1, uint16_t datalen1, void *data2, uint16_t datalen2)
+{
+    ProtoNameHashEntry *p1 = (ProtoNameHashEntry *)data1;
+    ProtoNameHashEntry *p2 = (ProtoNameHashEntry *)data2;
+
+    if (p1 == NULL || p2 == NULL)
+        return 0;
+
+    if (p1->name == NULL || p2->name == NULL)
+        return 0;
+
+    int len1 = strlen(p1->name);
+    int len2 = strlen(p2->name);
+
+    return len1 == len2 && memcmp(p1->name, p2->name, len1) == 0;
+}
+
+static void ProtoNameAddEntry(const char *proto_name, const uint8_t proto_number)
+{
+    ProtoNameHashEntry *proto_ent = SCCalloc(1, sizeof(ProtoNameHashEntry));
+    if (!proto_ent) {
+        FatalError("Unable to allocate protocol hash entry");
+    }
+
+    proto_ent->name = SCStrdup(proto_name);
+    if (!proto_ent->name)
+        FatalError("Unable to allocate memory for protocol name entries");
+
+    proto_ent->number = proto_number;
+
+    SCLogDebug("new protocol entry: name: \"%s\"; protocol number: %d", proto_ent->name,
+            proto_ent->number);
+    if (0 != HashTableAdd(proto_ht, proto_ent, 0)) {
+        FatalError("Unable to add entry to proto hash table for "
+                   "name: \"%s\"; number: %d",
+                proto_ent->name, proto_ent->number);
+    }
+    return;
+}
+
+static void ProtoNameHashFreeFunc(void *data)
+{
+    ProtoNameHashEntry *proto_ent = (ProtoNameHashEntry *)data;
+
+    if (proto_ent) {
+        if (proto_ent->name)
+            SCFree((void *)proto_ent->name);
+        SCFree(proto_ent);
+    }
+}
+
+void SCProtoNameInit(void)
+{
+    proto_ht =
+            HashTableInit(256, ProtoNameHashFunc, ProtoNameHashCompareFunc, ProtoNameHashFreeFunc);
+    if (proto_ht == NULL) {
+        FatalError("Unable to initialize protocol name/number table");
+    }
+
+    for (uint16_t i = 0; i < ARRAY_SIZE(known_proto); i++) {
+        if (known_proto[i]) {
+            ProtoNameAddEntry(known_proto[i], (uint8_t)i);
+        }
+    }
+
+    for (uint16_t i = 0; i < ARRAY_SIZE(proto_aliases); i++) {
+        if (proto_aliases[i]) {
+            ProtoNameAddEntry(proto_aliases[i], (uint8_t)i);
+        }
+    }
+}
+
+void SCProtoNameRelease(void)
+{
+    if (proto_ht != NULL) {
+        HashTableFree(proto_ht);
+        proto_ht = NULL;
+    }
+}
+
+/**
+ * \brief   Function to check if the received protocol number is valid and do
+ *          we have corresponding name entry for this number or not.
+ *
+ * \param proto Protocol number to be validated
+ * \retval ret On success returns true otherwise false
+ */
+bool SCProtoNameValid(uint16_t proto)
+{
+    return (proto <= 255 && known_proto[proto] != NULL);
+}
+
+/**
+ * \brief   Function to return the protocol number for a named protocol. Note
+ *          that protocol name aliases are honored.
+ *
+ * \param protoname Protocol name (or alias for a protocol name).
+ * \param proto_number Where to return protocol number
+ * \retval ret On success returns the protocol number; else -1
+ */
+bool SCGetProtoByName(const char *protoname, uint8_t *proto_number)
+{
+    if (!protoname || !proto_number) {
+        return false;
+    }
+
+    ProtoNameHashEntry proto;
+    proto.name = protoname;
+
+    ProtoNameHashEntry *proto_ent = HashTableLookup(proto_ht, &proto, sizeof(proto));
+    if (proto_ent) {
+        *proto_number = proto_ent->number;
+        return true;
+    }
+    return false;
+}
+
+#ifdef UNITTESTS
+static int ProtoNameTest01(void)
+{
+    uint8_t proto;
+    FAIL_IF(!SCGetProtoByName("tcp", &proto));
+    FAIL_IF(SCGetProtoByName("TcP", &proto));
+    FAIL_IF(!SCGetProtoByName("TCP", &proto));
+    FAIL_IF(SCGetProtoByName("Invalid", &proto));
+    FAIL_IF(!SCGetProtoByName("Ethernet", &proto));
+
+    /* 'ip' is an alias for 'HOPOPT' */
+    FAIL_IF(!SCGetProtoByName("ip", &proto));
+    FAIL_IF(!SCGetProtoByName("HOPOPT", &proto));
+
+    FAIL_IF(SCGetProtoByName("IP", &proto));
+
+    PASS;
+}
+
+void SCProtoNameRegisterTests(void)
+{
+    UtRegisterTest("ProtoNameTest01", ProtoNameTest01);
+}
+#endif