Meta: Move kernel and userland to their own folders.

This is to allow both the kernel and the userland to share certain
header files and to make the folder structure a bit more clear.

1 files changed, 0 insertions, 64 deletions

diff --git a/network/udp.c b/network/udp.c
deleted file mode 100644
index 23411da..0000000
--- a/network/udp.c
+++ /dev/null
@@ -1,64 +0,0 @@
-#include <assert.h>
-#include <network/bytes.h>
-#include <network/ipv4.h>
-#include <network/udp.h>
-#include <socket.h>
-
-void send_udp_packet(struct sockaddr_in *src, const struct sockaddr_in *dst,
-                     const uint8_t *payload, uint16_t payload_length) {
-  uint16_t header[4] = {0};
-  header[0] = src->sin_port;
-  header[1] = dst->sin_port;
-  header[2] = htons(payload_length + 8);
-
-  uint16_t packet_length = sizeof(header) + payload_length;
-  uint8_t *packet = kmalloc(packet_length);
-  memcpy(packet, header, sizeof(header));
-  memcpy(packet + sizeof(header), payload, payload_length);
-  send_ipv4_packet(dst->sin_addr.s_addr, 0x11, packet, packet_length);
-  kfree(packet);
-}
-
-void handle_udp(uint8_t src_ip[4], const uint8_t *payload,
-                uint32_t packet_length) {
-  assert(packet_length >= 8);
-  // n_.* means network format(big endian)
-  // h_.* means host format((probably) little endian)
-  uint16_t n_source_port = *(uint16_t *)payload;
-  uint16_t h_source_port = ntohs(n_source_port);
-  (void)h_source_port;
-  uint16_t h_dst_port = ntohs(*(uint16_t *)(payload + 2));
-  uint16_t h_length = ntohs(*(uint16_t *)(payload + 4));
-  assert(h_length == packet_length);
-  uint16_t data_length = h_length - 8;
-  const uint8_t *data = payload + 8;
-
-  // Find the open port
-  OPEN_INET_SOCKET *in_s = find_open_udp_port(htons(h_dst_port));
-  assert(in_s);
-  SOCKET *s = in_s->s;
-  vfs_fd_t *fifo_file = s->ptr_socket_fd;
-
-  // Write the sockaddr struct such that it can later be
-  // given to userland if asked.
-  struct sockaddr_in /*{
-    sa_family_t sin_family;
-    union {
-      uint32_t s_addr;
-    } sin_addr;
-    uint16_t sin_port;
-  }*/ in;
-  in.sin_family = AF_INET;
-  memcpy(&in.sin_addr.s_addr, src_ip, sizeof(uint32_t));
-  in.sin_port = n_source_port;
-  socklen_t sock_length = sizeof(struct sockaddr_in);
-
-  raw_vfs_pwrite(fifo_file, &sock_length, sizeof(sock_length), 0);
-  raw_vfs_pwrite(fifo_file, &in, sizeof(in), 0);
-
-  // Write the UDP payload length(not including header)
-  raw_vfs_pwrite(fifo_file, &data_length, sizeof(uint16_t), 0);
-
-  // Write the UDP payload
-  raw_vfs_pwrite(fifo_file, (char *)data, data_length, 0);
-}