X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fnet_cd.c;fp=palacios%2Fsrc%2Fdevices%2Fnet_cd.c;h=0000000000000000000000000000000000000000;hb=123a1ba27ea09c8fa77a1b36ce625b43d7c48b14;hp=f980bab6abcc3fbb6fcf5ebe55d0c93828fc93bf;hpb=0e097100a26bc43eb8964734fa43130fc4c71429;p=palacios.git diff --git a/palacios/src/devices/net_cd.c b/palacios/src/devices/net_cd.c deleted file mode 100644 index f980bab..0000000 --- a/palacios/src/devices/net_cd.c +++ /dev/null @@ -1,277 +0,0 @@ -/* - * This file is part of the Palacios Virtual Machine Monitor developed - * by the V3VEE Project with funding from the United States National - * Science Foundation and the Department of Energy. - * - * The V3VEE Project is a joint project between Northwestern University - * and the University of New Mexico. You can find out more at - * http://www.v3vee.org - * - * Copyright (c) 2008, Jack Lange - * Copyright (c) 2008, The V3VEE Project - * All rights reserved. - * - * Author: Jack Lange - * - * This is free software. You are permitted to use, - * redistribute, and modify it as specified in the file "V3VEE_LICENSE". - */ - -#include -#include -#include -#include - -#ifndef CONFIG_DEBUG_IDE -#undef PrintDebug -#define PrintDebug(fmt, args...) -#endif - - -#define NBD_READ_CMD 0x1 -#define NBD_WRITE_CMD 0x2 -#define NBD_CAPACITY_CMD 0x3 - -#define NBD_STATUS_OK 0x00 -#define NBD_STATUS_ERR 0xff - -struct cd_state { - uint64_t capacity; // in bytes - - int socket; - - uint32_t ip_addr; - uint16_t port; - - char disk_name[32]; - - struct vm_device * ide; - - uint_t bus; - uint_t drive; -}; - - -static int send_all(int socket, char * buf, int length) { - int bytes_sent = 0; - - PrintDebug("Sending %d bytes\n", length - bytes_sent); - while (bytes_sent < length) { - int tmp_bytes = V3_Send(socket, buf + bytes_sent, length - bytes_sent); - PrintDebug("Sent %d bytes\n", tmp_bytes); - - if (tmp_bytes == 0) { - PrintError("Connection Closed unexpectedly\n"); - return -1; - } - - bytes_sent += tmp_bytes; - } - - return 0; -} - - -static int recv_all(int socket, char * buf, int length) { - int bytes_read = 0; - - PrintDebug("Reading %d bytes\n", length - bytes_read); - while (bytes_read < length) { - int tmp_bytes = V3_Recv(socket, buf + bytes_read, length - bytes_read); - PrintDebug("Received %d bytes\n", tmp_bytes); - - if (tmp_bytes == 0) { - PrintError("Connection Closed unexpectedly\n"); - return -1; - } - - bytes_read += tmp_bytes; - } - - return 0; -} - -// CDs always read 2048 byte blocks... ? -static int cd_read(uint8_t * buf, int block_count, uint64_t lba, void * private_data) { - struct vm_device * cd_dev = (struct vm_device *)private_data; - struct cd_state * cd = (struct cd_state *)(cd_dev->private_data); - uint64_t offset = lba * ATAPI_BLOCK_SIZE; - int length = block_count * ATAPI_BLOCK_SIZE; - uint8_t status; - uint32_t ret_len = 0; - char nbd_cmd[4] = {0,0,0,0}; - - nbd_cmd[0] = NBD_READ_CMD; - - if (send_all(cd->socket, nbd_cmd, 4) == -1) { - PrintError("Error sending capacity command\n"); - return -1; - } - - if (send_all(cd->socket, (char *)&offset, 8) == -1) { - PrintError("Error sending read offset\n"); - return -1; - } - - if (send_all(cd->socket, (char *)&length, 4) == -1) { - PrintError("Error sending read length\n"); - return -1; - } - - if (recv_all(cd->socket, (char *)&status, 1) == -1) { - PrintError("Error receiving status\n"); - return -1; - } - - if (status != NBD_STATUS_OK) { - PrintError("NBD Error....\n"); - return -1; - } - - PrintDebug("Reading Data Ret Length\n"); - - if (recv_all(cd->socket, (char *)&ret_len, 4) == -1) { - PrintError("Error receiving Return read length\n"); - return -1; - } - - if (ret_len != length) { - PrintError("Read length mismatch (req=%d) (result=%d)\n", length, ret_len); - return -1; - } - - PrintDebug("Reading Data (%d bytes)\n", ret_len); - - if (recv_all(cd->socket, (char *)buf, ret_len) == -1) { - PrintError("Read Data Error\n"); - return -1; - } - - return 0; -} - - -static uint32_t cd_get_capacity(void * private_data) { - struct vm_device * cd_dev = (struct vm_device *)private_data; - struct cd_state * cd = (struct cd_state *)(cd_dev->private_data); - - return cd->capacity / ATAPI_BLOCK_SIZE; -} - -static struct v3_cd_ops cd_ops = { - .read = cd_read, - .get_capacity = cd_get_capacity, -}; - - - - -static int cd_free(struct vm_device * dev) { - return 0; -} - -static struct v3_device_ops dev_ops = { - .free = cd_free, - .reset = NULL, - .start = NULL, - .stop = NULL, -}; - - - -static int socket_init(struct cd_state * cd) { - char header[64]; - - PrintDebug("Intializing Net CD\n"); - - cd->socket = V3_Create_TCP_Socket(); - - PrintDebug("CD socket: %d\n", cd->socket); - PrintDebug("Connecting to: %s:%d\n", v3_inet_ntoa(cd->ip_addr), cd->port); - - V3_Connect_To_IP(cd->socket, v3_ntohl(cd->ip_addr), cd->port); - - - PrintDebug("Connected to NBD server\n"); - - //snprintf(header, 64, "V3_NBD_1 %s\n", cd->disk_name); - strcpy(header, "V3_NBD_1 "); - strncat(header, cd->disk_name, 32); - strncat(header, "\n", 1); - - - if (send_all(cd->socket, header, strlen(header)) == -1) { - PrintError("Error connecting to Network Block Device: %s\n", cd->disk_name); - return -1; - } - - // Cache Capacity - { - char nbd_cmd[4] = {0,0,0,0}; - - nbd_cmd[0] = NBD_CAPACITY_CMD; - - if (send_all(cd->socket, nbd_cmd, 4) == -1) { - PrintError("Error sending capacity command\n"); - return -1; - } - - if (recv_all(cd->socket, (char *)&(cd->capacity), 8) == -1) { - PrintError("Error Receiving Capacity\n"); - return -1; - } - - PrintDebug("Capacity: %p\n", (void *)(cd->capacity)); - } - - return 0; -} - -static int cd_init(struct guest_info * vm, void * cfg_data) { - struct net_cd_cfg * cfg = (struct net_cd_cfg *)cfg_data; - struct cd_state * cd = (struct cd_state *)V3_Malloc(sizeof(struct cd_state)); - - PrintDebug("Registering Net CD at %s:%d disk=%s\n", cfg->ip_str, cfg->port, cfg->disk_tag); - - strncpy(cd->disk_name, cfg->disk_tag, sizeof(cd->disk_name)); - cd->ip_addr = v3_inet_addr(cfg->ip_str); - cd->port = cfg->port; - - cd->ide = (struct vm_device * )v3_find_dev(vm, cfg->ide); - - if (cd->ide == 0) { - PrintError("Could not find backend %s\n", cfg->ide); - return -1; - } - - cd->bus = cfg->bus; - cd->drive = cfg->drive; - - struct vm_device * dev = v3_allocate_device("NET-CD", &dev_ops, cd); - - - if (v3_attach_device(vm, dev) == -1) { - PrintError("Could not attach device %s\n", "NET-CD"); - return -1; - } - - if (socket_init(cd) == -1) { - PrintError("Could not initialize socket connection\n"); - return -1; - } - - PrintDebug("Registering CD\n"); - - if (v3_ide_register_cdrom(cd->ide, cd->bus, cd->drive, "NET-CD", &cd_ops, dev) == -1) { - return -1; - } - - PrintDebug("intialization done\n"); - - return 0; -} - - - - -device_register("NET-CD", cd_init)