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95 lines
3.6 KiB
C
95 lines
3.6 KiB
C
/* Copyright (C) 2007-2024 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Jim Xu <jim.xu@windriver.com>
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* \author Justin Viiret <justin.viiret@intel.com>
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* \author Lukas Sismis <lsismis@oisf.net>
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*
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* MPM pattern matcher core function for the Hyperscan regex matcher.
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*/
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#include "suricata-common.h"
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#include "suricata.h"
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#include "util-mpm-hs-core.h"
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#ifdef BUILD_HYPERSCAN
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#include <hs.h>
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// Encode major, minor, and patch into a single 32-bit integer.
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#define HS_VERSION_ENCODE(major, minor, patch) (((major) << 24) | ((minor) << 16) | ((patch) << 8))
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#define HS_VERSION_AT_LEAST(major, minor, patch) \
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(HS_VERSION_32BIT >= HS_VERSION_ENCODE(major, minor, patch))
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/**
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* Translates Hyperscan error codes to human-readable messages.
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*
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* \param error_code
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* The error code returned by a Hyperscan function.
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* \return
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* A string describing the error.
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*/
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const char *HSErrorToStr(hs_error_t error_code)
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{
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switch (error_code) {
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case HS_SUCCESS:
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return "HS_SUCCESS: The engine completed normally";
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case HS_INVALID:
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return "HS_INVALID: A parameter passed to this function was invalid";
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case HS_NOMEM:
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return "HS_NOMEM: A memory allocation failed";
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case HS_SCAN_TERMINATED:
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return "HS_SCAN_TERMINATED: The engine was terminated by callback";
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case HS_COMPILER_ERROR:
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return "HS_COMPILER_ERROR: The pattern compiler failed";
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case HS_DB_VERSION_ERROR:
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return "HS_DB_VERSION_ERROR: The given database was built for a different version of "
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"Hyperscan";
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case HS_DB_PLATFORM_ERROR:
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return "HS_DB_PLATFORM_ERROR: The given database was built for a different platform "
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"(i.e., CPU type)";
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case HS_DB_MODE_ERROR:
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return "HS_DB_MODE_ERROR: The given database was built for a different mode of "
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"operation";
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case HS_BAD_ALIGN:
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return "HS_BAD_ALIGN: A parameter passed to this function was not correctly aligned";
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case HS_BAD_ALLOC:
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return "HS_BAD_ALLOC: The memory allocator did not return correctly aligned memory";
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case HS_SCRATCH_IN_USE:
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return "HS_SCRATCH_IN_USE: The scratch region was already in use";
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#if HS_VERSION_AT_LEAST(4, 4, 0)
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case HS_ARCH_ERROR:
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return "HS_ARCH_ERROR: Unsupported CPU architecture";
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#endif // HS_VERSION_AT_LEAST(4, 4, 0)
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#if HS_VERSION_AT_LEAST(4, 6, 0)
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case HS_INSUFFICIENT_SPACE:
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return "HS_INSUFFICIENT_SPACE: Provided buffer was too small";
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#endif // HS_VERSION_AT_LEAST(4, 6, 0)
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#if HS_VERSION_AT_LEAST(5, 1, 1)
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case HS_UNKNOWN_ERROR:
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return "HS_UNKNOWN_ERROR: Unexpected internal error";
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#endif // HS_VERSION_AT_LEAST(5, 1, 1)
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default:
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return "Unknown error code";
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}
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}
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#endif /* BUILD_HYPERSCAN */
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