Makefile

@@ -22,7 +22,7 @@ endif
 SOURCES_DIR := ./sources
 BUILD_DIR := ./build
 
-build: $(BUILD_DIR)/main.o $(BUILD_DIR)/sourcefs.o $(BUILD_DIR)/ui-socket.o
+build: $(BUILD_DIR)/main.o $(BUILD_DIR)/sourcefs.o
 	$(CC) $(CFLAGS) $^ $(LDFLAGS) -o $(BUILD_DIR)/icfs
 
 $(BUILD_DIR)/main.o: $(SOURCES_DIR)/main.c
@@ -31,8 +31,5 @@ $(BUILD_DIR)/main.o: $(SOURCES_DIR)/main.c
 $(BUILD_DIR)/sourcefs.o: $(SOURCES_DIR)/sourcefs.c $(SOURCES_DIR)/sourcefs.h
 	$(CC) $(CFLAGS) -c $< $(LDFLAGS) -o $@
 
-$(BUILD_DIR)/ui-socket.o: $(SOURCES_DIR)/ui-socket.c $(SOURCES_DIR)/ui-socket.h
-	$(CC) $(CFLAGS) -c $< $(LDFLAGS) -o $@
-
 clean:
 	rm $(BUILD_DIR)/*

sources/main.c

@@ -49,7 +49,6 @@
 #include <sys/file.h> /* flock(2) */
 
 #include "sourcefs.h"
-#include "ui-socket.h"
 
 const char *mountpoint = NULL;
 
@@ -361,16 +360,6 @@ static int xmp_create(const char *path, mode_t mode,
                       struct fuse_file_info *fi) {
   int fd;
 
-  struct process_info pi;
-
-  struct fuse_context *fc = fuse_get_context();
-
-  pi.PID = fc->pid;
-  pi.UID = fc->uid;
-  pi.name = "";
-
-  printf("%d", ask_access(path, pi));
-
   fd = source_create(path, fi->flags, mode);
   if (fd == -1)
     return -errno;
@@ -382,16 +371,6 @@ static int xmp_create(const char *path, mode_t mode,
 static int xmp_open(const char *path, struct fuse_file_info *fi) {
   int fd;
 
-  struct process_info pi;
-
-  struct fuse_context *fc = fuse_get_context();
-
-  pi.PID = fc->pid;
-  pi.UID = fc->uid;
-  pi.name = "";
-
-  printf("%d", ask_access(path, pi));
-
   fd = source_open(path, fi->flags);
   if (fd == -1)
     return -errno;
@@ -684,13 +663,7 @@ int main(int argc, char *argv[]) {
 
   int ret = source_init(mountpoint);
   if (ret != 0) {
-    perror("source_init");
+    perror("Failed to initialize filesystem.");
-    exit(EXIT_FAILURE);
-  }
-
-  ret = init_ui_socket("/home/fedir/.icfs-sock");
-  if (ret != 0) {
-    perror("init_ui_socket");
     exit(EXIT_FAILURE);
   }
 

sources/ui-socket.c

@@ -1,116 +0,0 @@
-#define _GNU_SOURCE
-#include "ui-socket.h"
-#include <errno.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <unistd.h>
-
-#define MAX_MESSAGE_SIZE 1024
-
-// Mutex for thread safety
-static pthread_mutex_t socket_mutex = PTHREAD_MUTEX_INITIALIZER;
-static int ui_socket_fd = -1; // Global socket file descriptor
-
-int init_ui_socket(const char *filename) {
-  if (!filename) {
-    return -1;
-  }
-
-  // Create the socket
-  ui_socket_fd = socket(AF_UNIX, SOCK_STREAM, 0);
-  if (ui_socket_fd == -1) {
-    perror("socket");
-    return -1;
-  }
-
-  // Remove the socket file if it already exists
-  if (unlink(filename) == -1 &&
-      errno != ENOENT) { // ENOENT means the file does not exist, which is fine
-    perror("unlink");
-    close(ui_socket_fd);
-    ui_socket_fd = -1;
-    return -1;
-  }
-
-  // Set up the socket address structure
-  struct sockaddr_un addr;
-  memset(&addr, 0, sizeof(struct sockaddr_un));
-  addr.sun_family = AF_UNIX;
-  strncpy(addr.sun_path, filename, sizeof(addr.sun_path) - 1);
-
-  // Bind the socket
-  if (bind(ui_socket_fd, (struct sockaddr *)&addr,
-           sizeof(struct sockaddr_un)) == -1) {
-    perror("bind");
-    close(ui_socket_fd);
-    ui_socket_fd = -1;
-    return -1;
-  }
-
-  // Listen for incoming connections
-  if (listen(ui_socket_fd, 5) == -1) {
-    perror("listen");
-    close(ui_socket_fd);
-    ui_socket_fd = -1;
-    return -1;
-  }
-
-  return 0;
-}
-
-int ask_access(const char *filename, struct process_info pi) {
-  if (!filename || ui_socket_fd == -1) {
-    return -1;
-  }
-
-  // Lock the mutex for thread safety
-  pthread_mutex_lock(&socket_mutex);
-
-  int client_fd = accept(ui_socket_fd, NULL, NULL);
-  if (client_fd == -1) {
-    perror("accept");
-    pthread_mutex_unlock(&socket_mutex);
-    return -1;
-  }
-
-  // Prepare the message to send to the GUI
-  char message[MAX_MESSAGE_SIZE];
-  int len_filename = strlen(filename);
-  int len_name = strlen(pi.name);
-
-  snprintf(message, sizeof(message), "r%04d%s%04d%04d%s%04d", len_filename,
-           filename, pi.PID, len_name, pi.name, pi.UID);
-
-  // Send the message to the GUI
-  if (send(client_fd, message, strlen(message), 0) == -1) {
-    perror("send");
-    close(client_fd);
-    pthread_mutex_unlock(&socket_mutex);
-    return -1;
-  }
-
-  // Receive the response from the GUI
-  char response[2];
-  if (recv(client_fd, response, sizeof(response), 0) == -1) {
-    perror("recv");
-    close(client_fd);
-    pthread_mutex_unlock(&socket_mutex);
-    return -1;
-  }
-
-  close(client_fd);
-  pthread_mutex_unlock(&socket_mutex);
-
-  // Process the response
-  if (response[0] == 'a' && response[1] == 'y') {
-    return 0; // Access granted
-  } else if (response[0] == 'a' && response[1] == 'n') {
-    return 1; // Access denied
-  }
-
-  return -1; // Invalid response
-}

sources/ui-socket.h

@@ -1,24 +0,0 @@
-
-/*
- * Interface for controlling communication with the UI.
- */
-
-#ifndef UI_SOCKET_H
-#define UI_SOCKET_H
-
-#include <sys/types.h>
-
-struct process_info {
-  pid_t PID;
-  const char *name;
-  uid_t UID;
-};
-
-// For default socket location, set socket_path = NULL.
-int init_ui_socket(const char *socket_path);
-
-// TODO: design an interface for asking user for permission.
-
-int ask_access(const char *filename, struct process_info pi);
-
-#endif // !UI_SOCKET_H