Commit graph

14 commits

Author SHA1 Message Date
Jason A. Donenfeld d9d0a2cbed global: infuriating kernel iterator style
One types:

   for (i = 0 ...

So one should also type:

  for_each_obj (obj ...

But the upstream kernel style guidelines are insane, and so we must
instead do:

  for_each_obj(obj ...

Ugly, but one must choose his battles wisely.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-10-31 17:25:23 +01:00
Jason A. Donenfeld 5b65f87e9f netlink: switch from ioctl to netlink for configuration
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-10-02 02:45:53 +02:00
Jason A. Donenfeld 9ef84af8c0 wg: use key_is_zero for comparing to zeros
Maybe an attacker on the system could use the infoleak in /proc to gauge
how long a wg(8) process takes to complete and determine the number of
leading zeros. This is somewhat ridiculous, but it's possible somebody
somewhere might at somepoint care in the future, so alright.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-09-24 23:10:15 +02:00
Jason A. Donenfeld 945fae0c7c wg: support text-based ipc
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-05-17 18:13:14 +02:00
Jason A. Donenfeld fabb6eca2b noise: redesign preshared key mode
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-05-17 18:07:42 +02:00
Jason A. Donenfeld 755217bd85 wg: side channel resistant base64
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-04-19 18:26:32 +02:00
Jason A. Donenfeld c8472e2dab socket: enable setting of fwmark
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-02-13 21:55:18 +01:00
Jason A. Donenfeld 396dc76a04 Update copyright
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-01-10 06:36:19 +01:00
Jason A. Donenfeld f43b43376b uapi: use sockaddr union instead of sockaddr_storage
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2017-01-10 06:29:24 +01:00
Jason A. Donenfeld 16a6972bb6 headers: cleanup notices
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-11-21 01:00:07 +01:00
Jason A. Donenfeld b318e81cd0 wg: rename kernel to ipc
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-07-21 11:26:52 +02:00
Jason A. Donenfeld b16641e30c wg: first additions of userspace integration
This is designed to work with a server that follows this:

  struct sockaddr_un addr = {
      .sun_family = AF_UNIX,
      .sun_path = "/var/run/wireguard/wguserspace0.sock"
  };
  int fd, ret;
  ssize_t len;
  socklen_t socklen;
  struct wgdevice *device;

  fd = socket(AF_UNIX, SOCK_DGRAM, 0);
  if (fd < 0)
      exit(1);
  if (bind(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0)
      exit(1);

  for (;;) {
      /* First we look at how big the next message is, so we know how much to
       * allocate. Note on BSD you can instead use ioctl(fd, FIONREAD, &len). */
      len = recv(fd, NULL, 0, MSG_PEEK | MSG_TRUNC);
      if (len < 0) {
          handle_error();
          continue;
      }
      /* Next we allocate a buffer for the received data. */
      device = NULL;
      if (len) {
          device = malloc(len);
          if (!device) {
              handle_error();
              continue;
          }
      }
      /* Finally we receive the data, storing too the return address. */
      socklen = sizeof(addr);
      len = recvfrom(fd, device, len, 0, (struct sockaddr *)&addr, (socklen_t *)&socklen);
      if (len < 0) {
          handle_error();
          free(device);
          continue;
      }
      if (!len) { /* If len is zero, it's a "get" request, so we send our device back. */
          device = get_current_wireguard_device(&len);
          sendto(fd, device, len, 0, (struct sockaddr *)&addr, socklen);
      } else { /* Otherwise, we just received a wgdevice, so we should "set" and send back the return status. */
          ret = set_current_wireguard_device(device);
          sendto(fd, &ret, sizeof(ret), 0, (struct sockaddr *)&addr, socklen);
          free(device);
      }
  }

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-07-20 22:04:56 +02:00
Jason A. Donenfeld fc743caf3b persistent keepalive: add userspace support
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-07-08 02:43:33 +02:00
Jason A. Donenfeld 8132305e54 Initial commit
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2016-06-25 16:48:39 +02:00