[Kernel-packages] [Bug 1826113] Re: socket creation failure - invalid argument error

[Kai-Heng Feng]

** Package changed: linux-hwe (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1826113

Title:
  socket creation failure - invalid argument error

Status in linux package in Ubuntu:
  New

Bug description:
  Hi, This code is working in 32 bit ubuntu versions 14.04 and 16.04. 
  Also, this code is working in ubuntu 14.04 64 bit versions. 

  but it is giving socket creation failure error in ubuntu 64 bit.
  (linux-image-3.19.0-25-generic 32/64 bit both working (ubuntu 14.04),
  linux-image-4.15.0-45-generic (32 bit working for ubuntu 16.04) and
  linux-image-4.15.0-47-generic ubunutu 64 bit gives error. Please
  suggest to this issue to run on 64 bit ubuntu 16.04 and other
  machines.

  This code socket fail and returns -1 :  s = socket(AF_PACKET,
  SOCK_RAW, htons(ETH_P_ALL));

  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <unistd.h>
  #include <signal.h>
  #include <sys/socket.h>
  #include <net/if.h>
  #include <linux/if_ether.h>
  #include <linux/if_packet.h>
  #include <arpa/inet.h>

  static int s = -1;
  static int s1 = -1;

  void onexit(int signum)
  {
      (void)signum;
      printf("Exiting");
      close(s);
      close(s1);
  }

  int main()
  {
      char buf[1600];
      ssize_t recv_size = -1;
      ssize_t send_size = -1;

      int i = 0;

      struct sockaddr_ll socket_address, socket_address1;

      s = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
      s1 = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));

      if ((s == -1) || (s1 == -1))
      {
          perror("Socket creation failed");
          exit (0);
      }

      signal(SIGINT, onexit);

      memset(&socket_address, 0, sizeof (socket_address));
      socket_address.sll_family = PF_PACKET;
      socket_address.sll_ifindex = if_nametoindex("eth0");
      socket_address.sll_protocol = htons(ETH_P_ALL);

      i = bind(s, (struct sockaddr*)&socket_address,
      sizeof(socket_address));
      if (i == -1)
      {
          perror("Bind");
          exit (0);
      }

      memset(&socket_address1, 0, sizeof (socket_address1));
      socket_address1.sll_family = PF_PACKET;
      socket_address1.sll_ifindex = if_nametoindex("eth1");
      socket_address1.sll_protocol = htons(ETH_P_ALL);

      i = bind(s1, (struct sockaddr*)&socket_address1,
      sizeof(socket_address1));
      if (i == -1)
      {
          perror("Bind");
          exit (0);
      }

      while (1)
      {
          memset(&buf, 0, sizeof(buf));

          recv_size = recv(s, &buf, sizeof(buf), 0);
          if (recv_size == -1)
          {
              perror("Socket receive");
              exit (0);
          }

          printf("\n");
          for(i=0; i &lt; recv_size; i++)
          {
              printf("%02x ", buf[i]);
          }

          send_size = send(s1, &buf, recv_size, 0);
          if (send_size == -1)
          {
              perror("Socket send");
              exit (0);
          }
      }

      return 0;
  }

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