First release of open-appsec source code

components/include/i_pm_scan.h

@@ -0,0 +1,67 @@
+// Copyright (C) 2022 Check Point Software Technologies Ltd. All rights reserved.
+
+// Licensed under the Apache License, Version 2.0 (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.
+
+#ifndef __I_PM_SCAN_H__
+#define __I_PM_SCAN_H__
+
+#include <sys/types.h>
+#include <set>
+#include <iostream>
+#include <functional>
+
+#include "buffer.h"
+#include "maybe_res.h"
+
+class PMPattern
+{
+public:
+    PMPattern() {}
+    PMPattern(const std::string &pat, bool start, bool end, uint index = 0)
+            :
+        pattern(pat),
+        match_start(start),
+        match_end(end),
+        index(index)
+    {}
+
+    bool operator<(const PMPattern &other) const;
+    bool operator==(const PMPattern &other) const;
+
+    bool isStartMatch() const { return match_start; }
+    bool isEndMatch() const { return match_end; }
+    const unsigned char * data() const { return reinterpret_cast<const unsigned char *>(pattern.data()); }
+    size_t size() const { return pattern.size(); }
+    bool empty() const { return pattern.empty(); }
+    uint getIndex() const { return index; }
+
+private:
+    std::string pattern;
+    bool match_start = false;
+    bool match_end = false;
+    uint index;
+};
+
+class I_PMScan
+{
+public:
+    using CBFunction =  std::function<void(uint, const PMPattern &)>;
+
+    virtual std::set<PMPattern> scanBuf(const Buffer &buf) const = 0;
+    virtual std::set<std::pair<uint, PMPattern>> scanBufWithOffset(const Buffer &buf) const = 0;
+    virtual void scanBufWithOffsetLambda(const Buffer &buf, CBFunction cb) const = 0;
+
+protected:
+    ~I_PMScan() {}
+};
+
+#endif // __I_PM_SCAN_H__