From 7c90d74d74a5988ceef17f5545c12289d09b4803 Mon Sep 17 00:00:00 2001
From: Robin Krahl <guskraro@student.gu.se>
Date: Thu, 19 Oct 2017 11:41:33 +0000
Subject: Add pasad.c by group 8 and Wissam with some minor adaptions

---
 broccoli/Makefile    |   5 +-
 broccoli/src/pasad.c | 142 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 146 insertions(+), 1 deletion(-)
 create mode 100644 broccoli/src/pasad.c

diff --git a/broccoli/Makefile b/broccoli/Makefile
index d50fb9e..1ab59e8 100644
--- a/broccoli/Makefile
+++ b/broccoli/Makefile
@@ -7,7 +7,7 @@ DEBUG =
 SRC = midbro.c broevent.c fifoqueue.c
 OBJ = $(patsubst %.c, build/%.o, $(SRC))
 
-all: dirs lib/midbro
+all: dirs lib/midbro bin/pasad
 
 dirs:
 	mkdir -p build bin lib
@@ -18,6 +18,9 @@ lib/midbro: $(OBJ)
 midbro_test:
 	$(CC) test/midbro_test.c -I./includes -o bin/midbro_test -L./lib -lmidbro
 
+bin/pasad: build/pasad.o
+	$(CC) $^ $(INC) -o $@ -Llib -lmidbro
+
 build/%.o: src/%.c
 	$(CC) $(LIBCFLAGS) $(DEBUG) $(INC) $< -o $@
 
diff --git a/broccoli/src/pasad.c b/broccoli/src/pasad.c
new file mode 100644
index 0000000..91b422c
--- /dev/null
+++ b/broccoli/src/pasad.c
@@ -0,0 +1,142 @@
+/*
+ 
+ -Course-
+ DAT300: Data-driven support for cyber-physical systems
+ 
+ -Project-
+ Intrusion Detection for Industrial Control Networks
+ 
+ -Group 8-
+ Hassan Ghalayini - hassang@student.chalmers.se
+ Malama Kasanda - malama@student.chalmers.se
+ Vaios Taxiarchis - vaios@student.chalmers.se
+
+ Modified by Robin Krahl <guskraro@student.gu.se>, Group 3:
+ - Write sensor readings and distance to text files
+ - Take the arguments N, L, r from argc (TODO)
+ - Formatting
+ 
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "midbro.h"
+
+int main()
+{
+	clock_t begin;
+	int N=1000,L=500,r=18,l=0;
+	double t=30;
+
+	FILE *file_sensor = fopen("sensor.dat", "w");
+	FILE *file_distance = fopen("distance.dat", "w");
+
+	/* Arrays and variables */
+	int sL=86336;
+	double s[sL];
+	double U[L][r];
+	double X[L];
+	double product_Xt_P_X;
+	double product_Xt_X;
+	int i=0,j=0,c=0,d=0,k=0;
+	double sum=0.0,dist=0.0;
+
+	start_data_capture();
+
+	/* File Descriptor to read projection matrix from U.txt */
+	FILE *file;
+	char ch='a';
+	int flag=0;
+	file=fopen("U.txt", "r");
+	printf("  >Reading U[%dx%d] matrix from .txt file...",L,r);
+	/* Read all values to an array */
+	for(i=0;i<L;i++)
+	{
+		if(flag==1){break;}
+		for(j=0;j<r;j++)
+		{
+			/* Use %lf format specifier, to read doubles with scanf */
+			if(!fscanf(file,"%lf",&U[i][j]))
+				break;
+			/* Break the inner loop and set flag=true */
+			ch = getc(file);
+			if(ch == EOF)
+			{
+				flag=1;
+				break;
+			}
+			/* Break the inner loop when find \n */
+			else if(ch - '0'== -38)
+				break;
+		}
+	}
+	/* Close File Descriptor */
+	fclose(file);
+	printf("Completed!\n");
+
+	for(i=0;i<N;i++)
+	{
+		s[i] = (double)request_value();
+	}
+
+	int p=1;
+	X[0]=0;
+
+	for(i=N-L+1;i<N;i++)
+	{
+		X[p] = s[i];
+		sum = sum + X[p]*X[p];
+		p++;
+	}
+	product_Xt_X = sum;
+	sum = 0;
+
+	begin = clock();
+	while(1)
+	{
+		int value = request_value();
+		s[p] = (double) value;
+		fprintf(file_sensor, "%d\n", value);
+
+		/* Xt[1xL] * X[Lx1] */
+		product_Xt_X = product_Xt_X - X[0]*X[0] + s[p]*s[p];
+
+		/* Generate new test vector Xtest */
+		for(j=0;j<L-1;j++)
+		{
+			X[j] = X[j+1];
+		}
+		X[L-1] = s[p];
+
+		product_Xt_P_X = 0;
+		/* P_1 = Xt[1xL] * U[Lxr] */
+		for (d=0;d<r;d++)
+		{
+			for (k=0;k<L;k++)
+			{
+				sum = sum + X[k]*U[k][d];
+			}
+			product_Xt_P_X = product_Xt_P_X + sum*sum;
+			sum = 0;
+		}
+
+		dist = (product_Xt_X - product_Xt_P_X)/L;
+		p++;
+
+		printf("%lf\n",dist);
+		fprintf(file_distance, "%lf\n", dist);
+	}
+
+	fclose(file_sensor);
+	fclose(file_distance);
+
+	printf(" [Program exits]\n");
+	/* Stop timer */
+	clock_t end = clock();
+
+	/* Print the time elapsed */
+	printf("Time elapsed: %f milliseconds\n", 1000*((double)(end - begin) / CLOCKS_PER_SEC));
+
+	return 0;
+}
-- 
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