From 7b144f3f50e4bc68afcedbe3dc4955b50942483a Mon Sep 17 00:00:00 2001
From: Ori Shavit <ori.shavit@otterize.com>
Date: Wed, 11 Sep 2024 17:15:22 +0200
Subject: [PATCH] add multi-arch machine to Makefile

---
 Makefile                       | 10 +++---
 src/ebpf/include/filters/pci.c | 62 ----------------------------------
 src/ebpf/include/filters/pci.h |  5 ---
 3 files changed, 5 insertions(+), 72 deletions(-)
 delete mode 100644 src/ebpf/include/filters/pci.c
 delete mode 100644 src/ebpf/include/filters/pci.h

diff --git a/Makefile b/Makefile
index a24fe4dd..61e72b7d 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ OTRZ_AGENT_IMAGE_FULL_NAME = $(OTRZ_IMAGE_REGISTRY)/$(OTRZ_AGENT_IMAGE_NAME):$(O
 OTRZ_MAPPER_IMAGE_FULL_NAME = $(OTRZ_IMAGE_REGISTRY)/$(OTRZ_MAPPER_IMAGE_NAME):$(OTRZ_IMAGE_TAG)
 
 LIMA_K8S_TEMPLATE = ./dev/lima-k8s.yaml
-LIMA_CLUSTER_NAME = k8s
+LIMA_CLUSTER_NAME = k8s-$(DOCKER_TARGET_ARCH)
 LIMA_KUBECONFIG_PATH = $(HOME)/.kube/lima
 LIMA_TEMP_DIR = /tmp/lima/
 DOCKER_TARGET_ARCH = arm64
@@ -46,11 +46,11 @@ lima-install: ## Installs lima if not already installed
 
 lima-k8s: ## Starts Lima with k8s template
 	@echo "${PROMPT_COLOR}Starting Lima with the template '$(LIMA_K8S_TEMPLATE)'...${PROMPT_NC}"
-	limactl start $(LIMA_K8S_TEMPLATE) --arch $(LIMA_TARGET_ARCH) --name k8s
+	limactl start $(LIMA_K8S_TEMPLATE) --arch $(LIMA_TARGET_ARCH) --name $(LIMA_CLUSTER_NAME)
 
 lima-kubeconfig: ## Copies kubeconfig from lima to host
 	@echo "${PROMPT_COLOR}Copying kubeconfig from Lima to host...${PROMPT_NC}"
-	cp $(shell limactl list k8s --format '{{.Dir}}/copied-from-guest/kubeconfig.yaml') $(LIMA_KUBECONFIG_PATH)
+	cp $(shell limactl list $(LIMA_CLUSTER_NAME) --format '{{.Dir}}/copied-from-guest/kubeconfig.yaml') $(LIMA_KUBECONFIG_PATH)
 	@echo "${PROMPT_COLOR}Run 'export KUBECONFIG=$(LIMA_KUBECONFIG_PATH)' to use the kubeconfig.${PROMPT_NC}"
 
 lima-copy-images: ## Copies the images to lima
@@ -60,8 +60,8 @@ lima-copy-images: ## Copies the images to lima
 	docker save -o $(LIMA_TEMP_DIR)images/$(OTRZ_AGENT_IMAGE_NAME).tar $(OTRZ_AGENT_IMAGE_FULL_NAME)
 	docker save -o $(LIMA_TEMP_DIR)images/$(OTRZ_MAPPER_IMAGE_NAME).tar $(OTRZ_MAPPER_IMAGE_FULL_NAME)
 
-	limactl copy $(LIMA_TEMP_DIR)images/$(OTRZ_AGENT_IMAGE_NAME).tar k8s:/tmp/$(OTRZ_AGENT_IMAGE_NAME).tar
-	limactl copy $(LIMA_TEMP_DIR)images/$(OTRZ_MAPPER_IMAGE_NAME).tar k8s:/tmp/$(OTRZ_MAPPER_IMAGE_NAME).tar
+	limactl copy $(LIMA_TEMP_DIR)images/$(OTRZ_AGENT_IMAGE_NAME).tar $(LIMA_CLUSTER_NAME):/tmp/$(OTRZ_AGENT_IMAGE_NAME).tar
+	limactl copy $(LIMA_TEMP_DIR)images/$(OTRZ_MAPPER_IMAGE_NAME).tar $(LIMA_CLUSTER_NAME):/tmp/$(OTRZ_MAPPER_IMAGE_NAME).tar
 
 	LIMA_INSTANCE=$(LIMA_CLUSTER_NAME) lima sudo ctr -n=k8s.io images import /tmp/$(OTRZ_AGENT_IMAGE_NAME).tar
 	LIMA_INSTANCE=$(LIMA_CLUSTER_NAME) lima sudo ctr -n=k8s.io images import /tmp/$(OTRZ_MAPPER_IMAGE_NAME).tar
diff --git a/src/ebpf/include/filters/pci.c b/src/ebpf/include/filters/pci.c
deleted file mode 100644
index af043bd4..00000000
--- a/src/ebpf/include/filters/pci.c
+++ /dev/null
@@ -1,62 +0,0 @@
-
-#include "pci.h"
-
-// Check if the character is a digit
-static __inline bool is_digit(char c) {
-    return c >= '0' && c <= '9';
-}
-
-// Luhn check to validate a card number
-// Ref: https://en.wikipedia.org/wiki/Luhn_algorithm
-bool luhn_check(const char *card_number, int len) {
-    __u32 sum = 0;
-    bool even = true;  // Start with alternating since the check digit is not doubled
-
-    // Process all digits except the last one (check digit)
-    for (int i = len - 2; i >= 0; i--) {
-        __u32 digit = card_number[i] - '0';  // Convert character to integer
-        if (digit < 0 || digit > 9) return false;  // value may only contain digits
-        if (even) digit *= 2; // double the value
-        if (digit > 9) digit -= 9;
-
-        even = !even;
-        sum += digit;
-    }
-
-    // Add the check digit (last digit) to the sum
-    __u32 checksum = card_number[len - 1] - '0';
-    sum += checksum;
-
-    // If the total modulo 10 is 0, the number is valid
-    return (sum % 10 == 0);
-}
-
-// Helper function to check for card-like sequences
-bool detect_card_number(const char *data, int data_len) {
-    int digit_count = 0;
-    char card_number[MAX_CARD_LEN];  // Store potential card number sequence
-
-    for (int i = 0; i < data_len; i++) {
-        if (is_digit(data[i])) {
-            card_number[digit_count] = data[i];  // Store digit
-            digit_count++;
-
-            // Reset count if we exceed the maximum card number length
-            if (digit_count > MAX_CARD_LEN) digit_count = 0;
-        } else {
-            // Check if we have a valid card number length and validate with Luhn check
-            if (digit_count >= MIN_CARD_LEN && digit_count <= MAX_CARD_LEN) {
-                if (luhn_check(card_number, digit_count)) return true;
-            }
-
-            digit_count = 0;  // Reset count if non-digit found
-        }
-    }
-
-    // Check again at the end in case the card number is at the end of the string
-    if (digit_count >= MIN_CARD_LEN && digit_count <= MAX_CARD_LEN) {
-        return luhn_check(card_number, digit_count);
-    }
-
-    return false;  // No valid card number detected
-}
diff --git a/src/ebpf/include/filters/pci.h b/src/ebpf/include/filters/pci.h
deleted file mode 100644
index afc00322..00000000
--- a/src/ebpf/include/filters/pci.h
+++ /dev/null
@@ -1,5 +0,0 @@
-
-#define MIN_CARD_LEN 13
-#define MAX_CARD_LEN 19
-
-bool detect_card_number(const char *data, int data_len);