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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "net.h" |
25 |
|
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#include "config-host.h" |
27 |
|
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#include "net/tap.h" |
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#include "net/socket.h" |
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#include "net/dump.h" |
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#include "net/slirp.h" |
32 |
#include "net/vde.h" |
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#include "net/util.h" |
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#include "monitor.h" |
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#include "sysemu.h" |
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#include "qemu-common.h" |
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#include "qemu_socket.h" |
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#include "hw/qdev.h" |
39 |
|
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static QTAILQ_HEAD(, VLANState) vlans;
|
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static QTAILQ_HEAD(, VLANClientState) non_vlan_clients;
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|
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int default_net = 1; |
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|
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/***********************************************************/
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/* network device redirectors */
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|
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#if defined(DEBUG_NET)
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static void hex_dump(FILE *f, const uint8_t *buf, int size) |
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{ |
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int len, i, j, c;
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|
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for(i=0;i<size;i+=16) { |
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len = size - i; |
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if (len > 16) |
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len = 16;
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fprintf(f, "%08x ", i);
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for(j=0;j<16;j++) { |
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if (j < len)
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fprintf(f, " %02x", buf[i+j]);
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else
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fprintf(f, " ");
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} |
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fprintf(f, " ");
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for(j=0;j<len;j++) { |
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c = buf[i+j]; |
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if (c < ' ' || c > '~') |
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c = '.';
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fprintf(f, "%c", c);
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} |
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fprintf(f, "\n");
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} |
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} |
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#endif
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75 |
|
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static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) |
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{ |
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const char *p, *p1; |
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int len;
|
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p = *pp; |
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p1 = strchr(p, sep); |
82 |
if (!p1)
|
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return -1; |
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len = p1 - p; |
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p1++; |
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if (buf_size > 0) { |
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if (len > buf_size - 1) |
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len = buf_size - 1;
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memcpy(buf, p, len); |
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buf[len] = '\0';
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} |
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*pp = p1; |
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return 0; |
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} |
95 |
|
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int parse_host_src_port(struct sockaddr_in *haddr, |
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struct sockaddr_in *saddr,
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const char *input_str) |
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{ |
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char *str = qemu_strdup(input_str);
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char *host_str = str;
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char *src_str;
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const char *src_str2; |
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char *ptr;
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|
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/*
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* Chop off any extra arguments at the end of the string which
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* would start with a comma, then fill in the src port information
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* if it was provided else use the "any address" and "any port".
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*/
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if ((ptr = strchr(str,','))) |
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*ptr = '\0';
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|
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if ((src_str = strchr(input_str,'@'))) { |
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*src_str = '\0';
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src_str++; |
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} |
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|
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if (parse_host_port(haddr, host_str) < 0) |
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goto fail;
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src_str2 = src_str; |
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if (!src_str || *src_str == '\0') |
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src_str2 = ":0";
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|
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if (parse_host_port(saddr, src_str2) < 0) |
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goto fail;
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free(str); |
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return(0); |
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|
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fail:
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free(str); |
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return -1; |
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} |
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int parse_host_port(struct sockaddr_in *saddr, const char *str) |
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{ |
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char buf[512]; |
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struct hostent *he;
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const char *p, *r; |
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int port;
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|
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p = str; |
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if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) |
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return -1; |
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saddr->sin_family = AF_INET; |
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if (buf[0] == '\0') { |
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saddr->sin_addr.s_addr = 0;
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} else {
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if (qemu_isdigit(buf[0])) { |
152 |
if (!inet_aton(buf, &saddr->sin_addr))
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return -1; |
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} else {
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if ((he = gethostbyname(buf)) == NULL) |
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return - 1; |
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saddr->sin_addr = *(struct in_addr *)he->h_addr;
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} |
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} |
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port = strtol(p, (char **)&r, 0); |
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if (r == p)
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return -1; |
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saddr->sin_port = htons(port); |
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return 0; |
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} |
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|
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void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]) |
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{ |
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snprintf(vc->info_str, sizeof(vc->info_str),
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"model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
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vc->model, |
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macaddr[0], macaddr[1], macaddr[2], |
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macaddr[3], macaddr[4], macaddr[5]); |
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} |
175 |
|
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void qemu_macaddr_default_if_unset(MACAddr *macaddr)
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{ |
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static int index = 0; |
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static const MACAddr zero = { .a = { 0,0,0,0,0,0 } }; |
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if (memcmp(macaddr, &zero, sizeof(zero)) != 0) |
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return;
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macaddr->a[0] = 0x52; |
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macaddr->a[1] = 0x54; |
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macaddr->a[2] = 0x00; |
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macaddr->a[3] = 0x12; |
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macaddr->a[4] = 0x34; |
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macaddr->a[5] = 0x56 + index++; |
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} |
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|
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static char *assign_name(VLANClientState *vc1, const char *model) |
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{ |
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VLANState *vlan; |
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char buf[256]; |
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int id = 0; |
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QTAILQ_FOREACH(vlan, &vlans, next) { |
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VLANClientState *vc; |
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QTAILQ_FOREACH(vc, &vlan->clients, next) { |
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if (vc != vc1 && strcmp(vc->model, model) == 0) { |
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id++; |
203 |
} |
204 |
} |
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} |
206 |
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snprintf(buf, sizeof(buf), "%s.%d", model, id); |
208 |
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return qemu_strdup(buf);
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} |
211 |
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static ssize_t qemu_deliver_packet(VLANClientState *sender,
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unsigned flags,
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const uint8_t *data,
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size_t size, |
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void *opaque);
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static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
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unsigned flags,
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const struct iovec *iov, |
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int iovcnt,
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void *opaque);
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|
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VLANClientState *qemu_new_net_client(NetClientInfo *info, |
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VLANState *vlan, |
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VLANClientState *peer, |
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const char *model, |
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const char *name) |
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{ |
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VLANClientState *vc; |
230 |
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assert(info->size >= sizeof(VLANClientState));
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vc = qemu_mallocz(info->size); |
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vc->info = info; |
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vc->model = qemu_strdup(model); |
237 |
if (name) {
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vc->name = qemu_strdup(name); |
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} else {
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vc->name = assign_name(vc, model); |
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} |
242 |
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if (vlan) {
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assert(!peer); |
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vc->vlan = vlan; |
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QTAILQ_INSERT_TAIL(&vc->vlan->clients, vc, next); |
247 |
} else {
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if (peer) {
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assert(!peer->peer); |
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vc->peer = peer; |
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peer->peer = vc; |
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} |
253 |
QTAILQ_INSERT_TAIL(&non_vlan_clients, vc, next); |
254 |
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vc->send_queue = qemu_new_net_queue(qemu_deliver_packet, |
256 |
qemu_deliver_packet_iov, |
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vc); |
258 |
} |
259 |
|
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return vc;
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} |
262 |
|
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NICState *qemu_new_nic(NetClientInfo *info, |
264 |
NICConf *conf, |
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const char *model, |
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const char *name, |
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void *opaque)
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{ |
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VLANClientState *nc; |
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NICState *nic; |
271 |
|
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assert(info->type == NET_CLIENT_TYPE_NIC); |
273 |
assert(info->size >= sizeof(NICState));
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|
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nc = qemu_new_net_client(info, conf->vlan, conf->peer, model, name); |
276 |
|
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nic = DO_UPCAST(NICState, nc, nc); |
278 |
nic->conf = conf; |
279 |
nic->opaque = opaque; |
280 |
|
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return nic;
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} |
283 |
|
284 |
static void qemu_cleanup_vlan_client(VLANClientState *vc) |
285 |
{ |
286 |
if (vc->vlan) {
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QTAILQ_REMOVE(&vc->vlan->clients, vc, next); |
288 |
} else {
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QTAILQ_REMOVE(&non_vlan_clients, vc, next); |
290 |
} |
291 |
|
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if (vc->info->cleanup) {
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vc->info->cleanup(vc); |
294 |
} |
295 |
} |
296 |
|
297 |
static void qemu_free_vlan_client(VLANClientState *vc) |
298 |
{ |
299 |
if (!vc->vlan) {
|
300 |
if (vc->send_queue) {
|
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qemu_del_net_queue(vc->send_queue); |
302 |
} |
303 |
if (vc->peer) {
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304 |
vc->peer->peer = NULL;
|
305 |
} |
306 |
} |
307 |
qemu_free(vc->name); |
308 |
qemu_free(vc->model); |
309 |
qemu_free(vc); |
310 |
} |
311 |
|
312 |
void qemu_del_vlan_client(VLANClientState *vc)
|
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{ |
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/* If there is a peer NIC, delete and cleanup client, but do not free. */
|
315 |
if (!vc->vlan && vc->peer && vc->peer->info->type == NET_CLIENT_TYPE_NIC) {
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NICState *nic = DO_UPCAST(NICState, nc, vc->peer); |
317 |
if (nic->peer_deleted) {
|
318 |
return;
|
319 |
} |
320 |
nic->peer_deleted = true;
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321 |
/* Let NIC know peer is gone. */
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322 |
vc->peer->link_down = true;
|
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if (vc->peer->info->link_status_changed) {
|
324 |
vc->peer->info->link_status_changed(vc->peer); |
325 |
} |
326 |
qemu_cleanup_vlan_client(vc); |
327 |
return;
|
328 |
} |
329 |
|
330 |
/* If this is a peer NIC and peer has already been deleted, free it now. */
|
331 |
if (!vc->vlan && vc->peer && vc->info->type == NET_CLIENT_TYPE_NIC) {
|
332 |
NICState *nic = DO_UPCAST(NICState, nc, vc); |
333 |
if (nic->peer_deleted) {
|
334 |
qemu_free_vlan_client(vc->peer); |
335 |
} |
336 |
} |
337 |
|
338 |
qemu_cleanup_vlan_client(vc); |
339 |
qemu_free_vlan_client(vc); |
340 |
} |
341 |
|
342 |
VLANClientState * |
343 |
qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
|
344 |
const char *client_str) |
345 |
{ |
346 |
VLANState *vlan; |
347 |
VLANClientState *vc; |
348 |
|
349 |
vlan = qemu_find_vlan(vlan_id, 0);
|
350 |
if (!vlan) {
|
351 |
monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
|
352 |
return NULL; |
353 |
} |
354 |
|
355 |
QTAILQ_FOREACH(vc, &vlan->clients, next) { |
356 |
if (!strcmp(vc->name, client_str)) {
|
357 |
break;
|
358 |
} |
359 |
} |
360 |
if (!vc) {
|
361 |
monitor_printf(mon, "can't find device %s on VLAN %d\n",
|
362 |
client_str, vlan_id); |
363 |
} |
364 |
|
365 |
return vc;
|
366 |
} |
367 |
|
368 |
void qemu_foreach_nic(qemu_nic_foreach func, void *opaque) |
369 |
{ |
370 |
VLANClientState *nc; |
371 |
VLANState *vlan; |
372 |
|
373 |
QTAILQ_FOREACH(nc, &non_vlan_clients, next) { |
374 |
if (nc->info->type == NET_CLIENT_TYPE_NIC) {
|
375 |
func(DO_UPCAST(NICState, nc, nc), opaque); |
376 |
} |
377 |
} |
378 |
|
379 |
QTAILQ_FOREACH(vlan, &vlans, next) { |
380 |
QTAILQ_FOREACH(nc, &vlan->clients, next) { |
381 |
if (nc->info->type == NET_CLIENT_TYPE_NIC) {
|
382 |
func(DO_UPCAST(NICState, nc, nc), opaque); |
383 |
} |
384 |
} |
385 |
} |
386 |
} |
387 |
|
388 |
int qemu_can_send_packet(VLANClientState *sender)
|
389 |
{ |
390 |
VLANState *vlan = sender->vlan; |
391 |
VLANClientState *vc; |
392 |
|
393 |
if (sender->peer) {
|
394 |
if (sender->peer->receive_disabled) {
|
395 |
return 0; |
396 |
} else if (sender->peer->info->can_receive && |
397 |
!sender->peer->info->can_receive(sender->peer)) { |
398 |
return 0; |
399 |
} else {
|
400 |
return 1; |
401 |
} |
402 |
} |
403 |
|
404 |
if (!sender->vlan) {
|
405 |
return 1; |
406 |
} |
407 |
|
408 |
QTAILQ_FOREACH(vc, &vlan->clients, next) { |
409 |
if (vc == sender) {
|
410 |
continue;
|
411 |
} |
412 |
|
413 |
/* no can_receive() handler, they can always receive */
|
414 |
if (!vc->info->can_receive || vc->info->can_receive(vc)) {
|
415 |
return 1; |
416 |
} |
417 |
} |
418 |
return 0; |
419 |
} |
420 |
|
421 |
static ssize_t qemu_deliver_packet(VLANClientState *sender,
|
422 |
unsigned flags,
|
423 |
const uint8_t *data,
|
424 |
size_t size, |
425 |
void *opaque)
|
426 |
{ |
427 |
VLANClientState *vc = opaque; |
428 |
ssize_t ret; |
429 |
|
430 |
if (vc->link_down) {
|
431 |
return size;
|
432 |
} |
433 |
|
434 |
if (vc->receive_disabled) {
|
435 |
return 0; |
436 |
} |
437 |
|
438 |
if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
|
439 |
ret = vc->info->receive_raw(vc, data, size); |
440 |
} else {
|
441 |
ret = vc->info->receive(vc, data, size); |
442 |
} |
443 |
|
444 |
if (ret == 0) { |
445 |
vc->receive_disabled = 1;
|
446 |
}; |
447 |
|
448 |
return ret;
|
449 |
} |
450 |
|
451 |
static ssize_t qemu_vlan_deliver_packet(VLANClientState *sender,
|
452 |
unsigned flags,
|
453 |
const uint8_t *buf,
|
454 |
size_t size, |
455 |
void *opaque)
|
456 |
{ |
457 |
VLANState *vlan = opaque; |
458 |
VLANClientState *vc; |
459 |
ssize_t ret = -1;
|
460 |
|
461 |
QTAILQ_FOREACH(vc, &vlan->clients, next) { |
462 |
ssize_t len; |
463 |
|
464 |
if (vc == sender) {
|
465 |
continue;
|
466 |
} |
467 |
|
468 |
if (vc->link_down) {
|
469 |
ret = size; |
470 |
continue;
|
471 |
} |
472 |
|
473 |
if (vc->receive_disabled) {
|
474 |
ret = 0;
|
475 |
continue;
|
476 |
} |
477 |
|
478 |
if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
|
479 |
len = vc->info->receive_raw(vc, buf, size); |
480 |
} else {
|
481 |
len = vc->info->receive(vc, buf, size); |
482 |
} |
483 |
|
484 |
if (len == 0) { |
485 |
vc->receive_disabled = 1;
|
486 |
} |
487 |
|
488 |
ret = (ret >= 0) ? ret : len;
|
489 |
|
490 |
} |
491 |
|
492 |
return ret;
|
493 |
} |
494 |
|
495 |
void qemu_purge_queued_packets(VLANClientState *vc)
|
496 |
{ |
497 |
NetQueue *queue; |
498 |
|
499 |
if (!vc->peer && !vc->vlan) {
|
500 |
return;
|
501 |
} |
502 |
|
503 |
if (vc->peer) {
|
504 |
queue = vc->peer->send_queue; |
505 |
} else {
|
506 |
queue = vc->vlan->send_queue; |
507 |
} |
508 |
|
509 |
qemu_net_queue_purge(queue, vc); |
510 |
} |
511 |
|
512 |
void qemu_flush_queued_packets(VLANClientState *vc)
|
513 |
{ |
514 |
NetQueue *queue; |
515 |
|
516 |
vc->receive_disabled = 0;
|
517 |
|
518 |
if (vc->vlan) {
|
519 |
queue = vc->vlan->send_queue; |
520 |
} else {
|
521 |
queue = vc->send_queue; |
522 |
} |
523 |
|
524 |
qemu_net_queue_flush(queue); |
525 |
} |
526 |
|
527 |
static ssize_t qemu_send_packet_async_with_flags(VLANClientState *sender,
|
528 |
unsigned flags,
|
529 |
const uint8_t *buf, int size, |
530 |
NetPacketSent *sent_cb) |
531 |
{ |
532 |
NetQueue *queue; |
533 |
|
534 |
#ifdef DEBUG_NET
|
535 |
printf("qemu_send_packet_async:\n");
|
536 |
hex_dump(stdout, buf, size); |
537 |
#endif
|
538 |
|
539 |
if (sender->link_down || (!sender->peer && !sender->vlan)) {
|
540 |
return size;
|
541 |
} |
542 |
|
543 |
if (sender->peer) {
|
544 |
queue = sender->peer->send_queue; |
545 |
} else {
|
546 |
queue = sender->vlan->send_queue; |
547 |
} |
548 |
|
549 |
return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb);
|
550 |
} |
551 |
|
552 |
ssize_t qemu_send_packet_async(VLANClientState *sender, |
553 |
const uint8_t *buf, int size, |
554 |
NetPacketSent *sent_cb) |
555 |
{ |
556 |
return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE,
|
557 |
buf, size, sent_cb); |
558 |
} |
559 |
|
560 |
void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size) |
561 |
{ |
562 |
qemu_send_packet_async(vc, buf, size, NULL);
|
563 |
} |
564 |
|
565 |
ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size) |
566 |
{ |
567 |
return qemu_send_packet_async_with_flags(vc, QEMU_NET_PACKET_FLAG_RAW,
|
568 |
buf, size, NULL);
|
569 |
} |
570 |
|
571 |
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, |
572 |
int iovcnt)
|
573 |
{ |
574 |
uint8_t buffer[4096];
|
575 |
size_t offset = 0;
|
576 |
int i;
|
577 |
|
578 |
for (i = 0; i < iovcnt; i++) { |
579 |
size_t len; |
580 |
|
581 |
len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
|
582 |
memcpy(buffer + offset, iov[i].iov_base, len); |
583 |
offset += len; |
584 |
} |
585 |
|
586 |
return vc->info->receive(vc, buffer, offset);
|
587 |
} |
588 |
|
589 |
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) |
590 |
{ |
591 |
size_t offset = 0;
|
592 |
int i;
|
593 |
|
594 |
for (i = 0; i < iovcnt; i++) |
595 |
offset += iov[i].iov_len; |
596 |
return offset;
|
597 |
} |
598 |
|
599 |
static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
|
600 |
unsigned flags,
|
601 |
const struct iovec *iov, |
602 |
int iovcnt,
|
603 |
void *opaque)
|
604 |
{ |
605 |
VLANClientState *vc = opaque; |
606 |
|
607 |
if (vc->link_down) {
|
608 |
return calc_iov_length(iov, iovcnt);
|
609 |
} |
610 |
|
611 |
if (vc->info->receive_iov) {
|
612 |
return vc->info->receive_iov(vc, iov, iovcnt);
|
613 |
} else {
|
614 |
return vc_sendv_compat(vc, iov, iovcnt);
|
615 |
} |
616 |
} |
617 |
|
618 |
static ssize_t qemu_vlan_deliver_packet_iov(VLANClientState *sender,
|
619 |
unsigned flags,
|
620 |
const struct iovec *iov, |
621 |
int iovcnt,
|
622 |
void *opaque)
|
623 |
{ |
624 |
VLANState *vlan = opaque; |
625 |
VLANClientState *vc; |
626 |
ssize_t ret = -1;
|
627 |
|
628 |
QTAILQ_FOREACH(vc, &vlan->clients, next) { |
629 |
ssize_t len; |
630 |
|
631 |
if (vc == sender) {
|
632 |
continue;
|
633 |
} |
634 |
|
635 |
if (vc->link_down) {
|
636 |
ret = calc_iov_length(iov, iovcnt); |
637 |
continue;
|
638 |
} |
639 |
|
640 |
assert(!(flags & QEMU_NET_PACKET_FLAG_RAW)); |
641 |
|
642 |
if (vc->info->receive_iov) {
|
643 |
len = vc->info->receive_iov(vc, iov, iovcnt); |
644 |
} else {
|
645 |
len = vc_sendv_compat(vc, iov, iovcnt); |
646 |
} |
647 |
|
648 |
ret = (ret >= 0) ? ret : len;
|
649 |
} |
650 |
|
651 |
return ret;
|
652 |
} |
653 |
|
654 |
ssize_t qemu_sendv_packet_async(VLANClientState *sender, |
655 |
const struct iovec *iov, int iovcnt, |
656 |
NetPacketSent *sent_cb) |
657 |
{ |
658 |
NetQueue *queue; |
659 |
|
660 |
if (sender->link_down || (!sender->peer && !sender->vlan)) {
|
661 |
return calc_iov_length(iov, iovcnt);
|
662 |
} |
663 |
|
664 |
if (sender->peer) {
|
665 |
queue = sender->peer->send_queue; |
666 |
} else {
|
667 |
queue = sender->vlan->send_queue; |
668 |
} |
669 |
|
670 |
return qemu_net_queue_send_iov(queue, sender,
|
671 |
QEMU_NET_PACKET_FLAG_NONE, |
672 |
iov, iovcnt, sent_cb); |
673 |
} |
674 |
|
675 |
ssize_t |
676 |
qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt) |
677 |
{ |
678 |
return qemu_sendv_packet_async(vc, iov, iovcnt, NULL); |
679 |
} |
680 |
|
681 |
/* find or alloc a new VLAN */
|
682 |
VLANState *qemu_find_vlan(int id, int allocate) |
683 |
{ |
684 |
VLANState *vlan; |
685 |
|
686 |
QTAILQ_FOREACH(vlan, &vlans, next) { |
687 |
if (vlan->id == id) {
|
688 |
return vlan;
|
689 |
} |
690 |
} |
691 |
|
692 |
if (!allocate) {
|
693 |
return NULL; |
694 |
} |
695 |
|
696 |
vlan = qemu_mallocz(sizeof(VLANState));
|
697 |
vlan->id = id; |
698 |
QTAILQ_INIT(&vlan->clients); |
699 |
|
700 |
vlan->send_queue = qemu_new_net_queue(qemu_vlan_deliver_packet, |
701 |
qemu_vlan_deliver_packet_iov, |
702 |
vlan); |
703 |
|
704 |
QTAILQ_INSERT_TAIL(&vlans, vlan, next); |
705 |
|
706 |
return vlan;
|
707 |
} |
708 |
|
709 |
VLANClientState *qemu_find_netdev(const char *id) |
710 |
{ |
711 |
VLANClientState *vc; |
712 |
|
713 |
QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
714 |
if (!strcmp(vc->name, id)) {
|
715 |
return vc;
|
716 |
} |
717 |
} |
718 |
|
719 |
return NULL; |
720 |
} |
721 |
|
722 |
static int nic_get_free_idx(void) |
723 |
{ |
724 |
int index;
|
725 |
|
726 |
for (index = 0; index < MAX_NICS; index++) |
727 |
if (!nd_table[index].used)
|
728 |
return index;
|
729 |
return -1; |
730 |
} |
731 |
|
732 |
int qemu_show_nic_models(const char *arg, const char *const *models) |
733 |
{ |
734 |
int i;
|
735 |
|
736 |
if (!arg || strcmp(arg, "?")) |
737 |
return 0; |
738 |
|
739 |
fprintf(stderr, "qemu: Supported NIC models: ");
|
740 |
for (i = 0 ; models[i]; i++) |
741 |
fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n'); |
742 |
return 1; |
743 |
} |
744 |
|
745 |
void qemu_check_nic_model(NICInfo *nd, const char *model) |
746 |
{ |
747 |
const char *models[2]; |
748 |
|
749 |
models[0] = model;
|
750 |
models[1] = NULL; |
751 |
|
752 |
if (qemu_show_nic_models(nd->model, models))
|
753 |
exit(0);
|
754 |
if (qemu_find_nic_model(nd, models, model) < 0) |
755 |
exit(1);
|
756 |
} |
757 |
|
758 |
int qemu_find_nic_model(NICInfo *nd, const char * const *models, |
759 |
const char *default_model) |
760 |
{ |
761 |
int i;
|
762 |
|
763 |
if (!nd->model)
|
764 |
nd->model = qemu_strdup(default_model); |
765 |
|
766 |
for (i = 0 ; models[i]; i++) { |
767 |
if (strcmp(nd->model, models[i]) == 0) |
768 |
return i;
|
769 |
} |
770 |
|
771 |
error_report("qemu: Unsupported NIC model: %s", nd->model);
|
772 |
return -1; |
773 |
} |
774 |
|
775 |
int net_handle_fd_param(Monitor *mon, const char *param) |
776 |
{ |
777 |
int fd;
|
778 |
|
779 |
if (!qemu_isdigit(param[0]) && mon) { |
780 |
|
781 |
fd = monitor_get_fd(mon, param); |
782 |
if (fd == -1) { |
783 |
error_report("No file descriptor named %s found", param);
|
784 |
return -1; |
785 |
} |
786 |
} else {
|
787 |
char *endptr = NULL; |
788 |
|
789 |
fd = strtol(param, &endptr, 10);
|
790 |
if (*endptr || (fd == 0 && param == endptr)) { |
791 |
return -1; |
792 |
} |
793 |
} |
794 |
|
795 |
return fd;
|
796 |
} |
797 |
|
798 |
static int net_init_nic(QemuOpts *opts, |
799 |
Monitor *mon, |
800 |
const char *name, |
801 |
VLANState *vlan) |
802 |
{ |
803 |
int idx;
|
804 |
NICInfo *nd; |
805 |
const char *netdev; |
806 |
|
807 |
idx = nic_get_free_idx(); |
808 |
if (idx == -1 || nb_nics >= MAX_NICS) { |
809 |
error_report("Too Many NICs");
|
810 |
return -1; |
811 |
} |
812 |
|
813 |
nd = &nd_table[idx]; |
814 |
|
815 |
memset(nd, 0, sizeof(*nd)); |
816 |
|
817 |
if ((netdev = qemu_opt_get(opts, "netdev"))) { |
818 |
nd->netdev = qemu_find_netdev(netdev); |
819 |
if (!nd->netdev) {
|
820 |
error_report("netdev '%s' not found", netdev);
|
821 |
return -1; |
822 |
} |
823 |
} else {
|
824 |
assert(vlan); |
825 |
nd->vlan = vlan; |
826 |
} |
827 |
if (name) {
|
828 |
nd->name = qemu_strdup(name); |
829 |
} |
830 |
if (qemu_opt_get(opts, "model")) { |
831 |
nd->model = qemu_strdup(qemu_opt_get(opts, "model"));
|
832 |
} |
833 |
if (qemu_opt_get(opts, "addr")) { |
834 |
nd->devaddr = qemu_strdup(qemu_opt_get(opts, "addr"));
|
835 |
} |
836 |
|
837 |
nd->macaddr[0] = 0x52; |
838 |
nd->macaddr[1] = 0x54; |
839 |
nd->macaddr[2] = 0x00; |
840 |
nd->macaddr[3] = 0x12; |
841 |
nd->macaddr[4] = 0x34; |
842 |
nd->macaddr[5] = 0x56 + idx; |
843 |
|
844 |
if (qemu_opt_get(opts, "macaddr") && |
845 |
net_parse_macaddr(nd->macaddr, qemu_opt_get(opts, "macaddr")) < 0) { |
846 |
error_report("invalid syntax for ethernet address");
|
847 |
return -1; |
848 |
} |
849 |
|
850 |
nd->nvectors = qemu_opt_get_number(opts, "vectors",
|
851 |
DEV_NVECTORS_UNSPECIFIED); |
852 |
if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
|
853 |
(nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) { |
854 |
error_report("invalid # of vectors: %d", nd->nvectors);
|
855 |
return -1; |
856 |
} |
857 |
|
858 |
nd->used = 1;
|
859 |
nb_nics++; |
860 |
|
861 |
return idx;
|
862 |
} |
863 |
|
864 |
#define NET_COMMON_PARAMS_DESC \
|
865 |
{ \ |
866 |
.name = "type", \
|
867 |
.type = QEMU_OPT_STRING, \ |
868 |
.help = "net client type (nic, tap etc.)", \
|
869 |
}, { \ |
870 |
.name = "vlan", \
|
871 |
.type = QEMU_OPT_NUMBER, \ |
872 |
.help = "vlan number", \
|
873 |
}, { \ |
874 |
.name = "name", \
|
875 |
.type = QEMU_OPT_STRING, \ |
876 |
.help = "identifier for monitor commands", \
|
877 |
} |
878 |
|
879 |
typedef int (*net_client_init_func)(QemuOpts *opts, |
880 |
Monitor *mon, |
881 |
const char *name, |
882 |
VLANState *vlan); |
883 |
|
884 |
/* magic number, but compiler will warn if too small */
|
885 |
#define NET_MAX_DESC 20 |
886 |
|
887 |
static const struct { |
888 |
const char *type; |
889 |
net_client_init_func init; |
890 |
QemuOptDesc desc[NET_MAX_DESC]; |
891 |
} net_client_types[] = { |
892 |
{ |
893 |
.type = "none",
|
894 |
.desc = { |
895 |
NET_COMMON_PARAMS_DESC, |
896 |
{ /* end of list */ }
|
897 |
}, |
898 |
}, { |
899 |
.type = "nic",
|
900 |
.init = net_init_nic, |
901 |
.desc = { |
902 |
NET_COMMON_PARAMS_DESC, |
903 |
{ |
904 |
.name = "netdev",
|
905 |
.type = QEMU_OPT_STRING, |
906 |
.help = "id of -netdev to connect to",
|
907 |
}, |
908 |
{ |
909 |
.name = "macaddr",
|
910 |
.type = QEMU_OPT_STRING, |
911 |
.help = "MAC address",
|
912 |
}, { |
913 |
.name = "model",
|
914 |
.type = QEMU_OPT_STRING, |
915 |
.help = "device model (e1000, rtl8139, virtio etc.)",
|
916 |
}, { |
917 |
.name = "addr",
|
918 |
.type = QEMU_OPT_STRING, |
919 |
.help = "PCI device address",
|
920 |
}, { |
921 |
.name = "vectors",
|
922 |
.type = QEMU_OPT_NUMBER, |
923 |
.help = "number of MSI-x vectors, 0 to disable MSI-X",
|
924 |
}, |
925 |
{ /* end of list */ }
|
926 |
}, |
927 |
#ifdef CONFIG_SLIRP
|
928 |
}, { |
929 |
.type = "user",
|
930 |
.init = net_init_slirp, |
931 |
.desc = { |
932 |
NET_COMMON_PARAMS_DESC, |
933 |
{ |
934 |
.name = "hostname",
|
935 |
.type = QEMU_OPT_STRING, |
936 |
.help = "client hostname reported by the builtin DHCP server",
|
937 |
}, { |
938 |
.name = "restrict",
|
939 |
.type = QEMU_OPT_STRING, |
940 |
.help = "isolate the guest from the host (y|yes|n|no)",
|
941 |
}, { |
942 |
.name = "ip",
|
943 |
.type = QEMU_OPT_STRING, |
944 |
.help = "legacy parameter, use net= instead",
|
945 |
}, { |
946 |
.name = "net",
|
947 |
.type = QEMU_OPT_STRING, |
948 |
.help = "IP address and optional netmask",
|
949 |
}, { |
950 |
.name = "host",
|
951 |
.type = QEMU_OPT_STRING, |
952 |
.help = "guest-visible address of the host",
|
953 |
}, { |
954 |
.name = "tftp",
|
955 |
.type = QEMU_OPT_STRING, |
956 |
.help = "root directory of the built-in TFTP server",
|
957 |
}, { |
958 |
.name = "bootfile",
|
959 |
.type = QEMU_OPT_STRING, |
960 |
.help = "BOOTP filename, for use with tftp=",
|
961 |
}, { |
962 |
.name = "dhcpstart",
|
963 |
.type = QEMU_OPT_STRING, |
964 |
.help = "the first of the 16 IPs the built-in DHCP server can assign",
|
965 |
}, { |
966 |
.name = "dns",
|
967 |
.type = QEMU_OPT_STRING, |
968 |
.help = "guest-visible address of the virtual nameserver",
|
969 |
}, { |
970 |
.name = "smb",
|
971 |
.type = QEMU_OPT_STRING, |
972 |
.help = "root directory of the built-in SMB server",
|
973 |
}, { |
974 |
.name = "smbserver",
|
975 |
.type = QEMU_OPT_STRING, |
976 |
.help = "IP address of the built-in SMB server",
|
977 |
}, { |
978 |
.name = "hostfwd",
|
979 |
.type = QEMU_OPT_STRING, |
980 |
.help = "guest port number to forward incoming TCP or UDP connections",
|
981 |
}, { |
982 |
.name = "guestfwd",
|
983 |
.type = QEMU_OPT_STRING, |
984 |
.help = "IP address and port to forward guest TCP connections",
|
985 |
}, |
986 |
{ /* end of list */ }
|
987 |
}, |
988 |
#endif
|
989 |
}, { |
990 |
.type = "tap",
|
991 |
.init = net_init_tap, |
992 |
.desc = { |
993 |
NET_COMMON_PARAMS_DESC, |
994 |
{ |
995 |
.name = "ifname",
|
996 |
.type = QEMU_OPT_STRING, |
997 |
.help = "interface name",
|
998 |
}, |
999 |
#ifndef _WIN32
|
1000 |
{ |
1001 |
.name = "fd",
|
1002 |
.type = QEMU_OPT_STRING, |
1003 |
.help = "file descriptor of an already opened tap",
|
1004 |
}, { |
1005 |
.name = "script",
|
1006 |
.type = QEMU_OPT_STRING, |
1007 |
.help = "script to initialize the interface",
|
1008 |
}, { |
1009 |
.name = "downscript",
|
1010 |
.type = QEMU_OPT_STRING, |
1011 |
.help = "script to shut down the interface",
|
1012 |
}, { |
1013 |
.name = "sndbuf",
|
1014 |
.type = QEMU_OPT_SIZE, |
1015 |
.help = "send buffer limit"
|
1016 |
}, { |
1017 |
.name = "vnet_hdr",
|
1018 |
.type = QEMU_OPT_BOOL, |
1019 |
.help = "enable the IFF_VNET_HDR flag on the tap interface"
|
1020 |
}, { |
1021 |
.name = "vhost",
|
1022 |
.type = QEMU_OPT_BOOL, |
1023 |
.help = "enable vhost-net network accelerator",
|
1024 |
}, { |
1025 |
.name = "vhostfd",
|
1026 |
.type = QEMU_OPT_STRING, |
1027 |
.help = "file descriptor of an already opened vhost net device",
|
1028 |
}, |
1029 |
#endif /* _WIN32 */ |
1030 |
{ /* end of list */ }
|
1031 |
}, |
1032 |
}, { |
1033 |
.type = "socket",
|
1034 |
.init = net_init_socket, |
1035 |
.desc = { |
1036 |
NET_COMMON_PARAMS_DESC, |
1037 |
{ |
1038 |
.name = "fd",
|
1039 |
.type = QEMU_OPT_STRING, |
1040 |
.help = "file descriptor of an already opened socket",
|
1041 |
}, { |
1042 |
.name = "listen",
|
1043 |
.type = QEMU_OPT_STRING, |
1044 |
.help = "port number, and optional hostname, to listen on",
|
1045 |
}, { |
1046 |
.name = "connect",
|
1047 |
.type = QEMU_OPT_STRING, |
1048 |
.help = "port number, and optional hostname, to connect to",
|
1049 |
}, { |
1050 |
.name = "mcast",
|
1051 |
.type = QEMU_OPT_STRING, |
1052 |
.help = "UDP multicast address and port number",
|
1053 |
}, { |
1054 |
.name = "localaddr",
|
1055 |
.type = QEMU_OPT_STRING, |
1056 |
.help = "source address for multicast packets",
|
1057 |
}, |
1058 |
{ /* end of list */ }
|
1059 |
}, |
1060 |
#ifdef CONFIG_VDE
|
1061 |
}, { |
1062 |
.type = "vde",
|
1063 |
.init = net_init_vde, |
1064 |
.desc = { |
1065 |
NET_COMMON_PARAMS_DESC, |
1066 |
{ |
1067 |
.name = "sock",
|
1068 |
.type = QEMU_OPT_STRING, |
1069 |
.help = "socket path",
|
1070 |
}, { |
1071 |
.name = "port",
|
1072 |
.type = QEMU_OPT_NUMBER, |
1073 |
.help = "port number",
|
1074 |
}, { |
1075 |
.name = "group",
|
1076 |
.type = QEMU_OPT_STRING, |
1077 |
.help = "group owner of socket",
|
1078 |
}, { |
1079 |
.name = "mode",
|
1080 |
.type = QEMU_OPT_NUMBER, |
1081 |
.help = "permissions for socket",
|
1082 |
}, |
1083 |
{ /* end of list */ }
|
1084 |
}, |
1085 |
#endif
|
1086 |
}, { |
1087 |
.type = "dump",
|
1088 |
.init = net_init_dump, |
1089 |
.desc = { |
1090 |
NET_COMMON_PARAMS_DESC, |
1091 |
{ |
1092 |
.name = "len",
|
1093 |
.type = QEMU_OPT_SIZE, |
1094 |
.help = "per-packet size limit (64k default)",
|
1095 |
}, { |
1096 |
.name = "file",
|
1097 |
.type = QEMU_OPT_STRING, |
1098 |
.help = "dump file path (default is qemu-vlan0.pcap)",
|
1099 |
}, |
1100 |
{ /* end of list */ }
|
1101 |
}, |
1102 |
}, |
1103 |
{ /* end of list */ }
|
1104 |
}; |
1105 |
|
1106 |
int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev) |
1107 |
{ |
1108 |
const char *name; |
1109 |
const char *type; |
1110 |
int i;
|
1111 |
|
1112 |
type = qemu_opt_get(opts, "type");
|
1113 |
if (!type) {
|
1114 |
qerror_report(QERR_MISSING_PARAMETER, "type");
|
1115 |
return -1; |
1116 |
} |
1117 |
|
1118 |
if (is_netdev) {
|
1119 |
if (strcmp(type, "tap") != 0 && |
1120 |
#ifdef CONFIG_SLIRP
|
1121 |
strcmp(type, "user") != 0 && |
1122 |
#endif
|
1123 |
#ifdef CONFIG_VDE
|
1124 |
strcmp(type, "vde") != 0 && |
1125 |
#endif
|
1126 |
strcmp(type, "socket") != 0) { |
1127 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "type",
|
1128 |
"a netdev backend type");
|
1129 |
return -1; |
1130 |
} |
1131 |
|
1132 |
if (qemu_opt_get(opts, "vlan")) { |
1133 |
qerror_report(QERR_INVALID_PARAMETER, "vlan");
|
1134 |
return -1; |
1135 |
} |
1136 |
if (qemu_opt_get(opts, "name")) { |
1137 |
qerror_report(QERR_INVALID_PARAMETER, "name");
|
1138 |
return -1; |
1139 |
} |
1140 |
if (!qemu_opts_id(opts)) {
|
1141 |
qerror_report(QERR_MISSING_PARAMETER, "id");
|
1142 |
return -1; |
1143 |
} |
1144 |
} |
1145 |
|
1146 |
name = qemu_opts_id(opts); |
1147 |
if (!name) {
|
1148 |
name = qemu_opt_get(opts, "name");
|
1149 |
} |
1150 |
|
1151 |
for (i = 0; net_client_types[i].type != NULL; i++) { |
1152 |
if (!strcmp(net_client_types[i].type, type)) {
|
1153 |
VLANState *vlan = NULL;
|
1154 |
int ret;
|
1155 |
|
1156 |
if (qemu_opts_validate(opts, &net_client_types[i].desc[0]) == -1) { |
1157 |
return -1; |
1158 |
} |
1159 |
|
1160 |
/* Do not add to a vlan if it's a -netdev or a nic with a
|
1161 |
* netdev= parameter. */
|
1162 |
if (!(is_netdev ||
|
1163 |
(strcmp(type, "nic") == 0 && qemu_opt_get(opts, "netdev")))) { |
1164 |
vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1); |
1165 |
} |
1166 |
|
1167 |
ret = 0;
|
1168 |
if (net_client_types[i].init) {
|
1169 |
ret = net_client_types[i].init(opts, mon, name, vlan); |
1170 |
if (ret < 0) { |
1171 |
/* TODO push error reporting into init() methods */
|
1172 |
qerror_report(QERR_DEVICE_INIT_FAILED, type); |
1173 |
return -1; |
1174 |
} |
1175 |
} |
1176 |
return ret;
|
1177 |
} |
1178 |
} |
1179 |
|
1180 |
qerror_report(QERR_INVALID_PARAMETER_VALUE, "type",
|
1181 |
"a network client type");
|
1182 |
return -1; |
1183 |
} |
1184 |
|
1185 |
static int net_host_check_device(const char *device) |
1186 |
{ |
1187 |
int i;
|
1188 |
const char *valid_param_list[] = { "tap", "socket", "dump" |
1189 |
#ifdef CONFIG_SLIRP
|
1190 |
,"user"
|
1191 |
#endif
|
1192 |
#ifdef CONFIG_VDE
|
1193 |
,"vde"
|
1194 |
#endif
|
1195 |
}; |
1196 |
for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) { |
1197 |
if (!strncmp(valid_param_list[i], device,
|
1198 |
strlen(valid_param_list[i]))) |
1199 |
return 1; |
1200 |
} |
1201 |
|
1202 |
return 0; |
1203 |
} |
1204 |
|
1205 |
void net_host_device_add(Monitor *mon, const QDict *qdict) |
1206 |
{ |
1207 |
const char *device = qdict_get_str(qdict, "device"); |
1208 |
const char *opts_str = qdict_get_try_str(qdict, "opts"); |
1209 |
QemuOpts *opts; |
1210 |
|
1211 |
if (!net_host_check_device(device)) {
|
1212 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
1213 |
return;
|
1214 |
} |
1215 |
|
1216 |
opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0); |
1217 |
if (!opts) {
|
1218 |
return;
|
1219 |
} |
1220 |
|
1221 |
qemu_opt_set(opts, "type", device);
|
1222 |
|
1223 |
if (net_client_init(mon, opts, 0) < 0) { |
1224 |
monitor_printf(mon, "adding host network device %s failed\n", device);
|
1225 |
} |
1226 |
} |
1227 |
|
1228 |
void net_host_device_remove(Monitor *mon, const QDict *qdict) |
1229 |
{ |
1230 |
VLANClientState *vc; |
1231 |
int vlan_id = qdict_get_int(qdict, "vlan_id"); |
1232 |
const char *device = qdict_get_str(qdict, "device"); |
1233 |
|
1234 |
vc = qemu_find_vlan_client_by_name(mon, vlan_id, device); |
1235 |
if (!vc) {
|
1236 |
return;
|
1237 |
} |
1238 |
if (!net_host_check_device(vc->model)) {
|
1239 |
monitor_printf(mon, "invalid host network device %s\n", device);
|
1240 |
return;
|
1241 |
} |
1242 |
qemu_del_vlan_client(vc); |
1243 |
} |
1244 |
|
1245 |
int do_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
1246 |
{ |
1247 |
QemuOpts *opts; |
1248 |
int res;
|
1249 |
|
1250 |
opts = qemu_opts_from_qdict(qemu_find_opts("netdev"), qdict);
|
1251 |
if (!opts) {
|
1252 |
return -1; |
1253 |
} |
1254 |
|
1255 |
res = net_client_init(mon, opts, 1);
|
1256 |
if (res < 0) { |
1257 |
qemu_opts_del(opts); |
1258 |
} |
1259 |
|
1260 |
return res;
|
1261 |
} |
1262 |
|
1263 |
int do_netdev_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
1264 |
{ |
1265 |
const char *id = qdict_get_str(qdict, "id"); |
1266 |
VLANClientState *vc; |
1267 |
|
1268 |
vc = qemu_find_netdev(id); |
1269 |
if (!vc || vc->info->type == NET_CLIENT_TYPE_NIC) {
|
1270 |
qerror_report(QERR_DEVICE_NOT_FOUND, id); |
1271 |
return -1; |
1272 |
} |
1273 |
qemu_del_vlan_client(vc); |
1274 |
qemu_opts_del(qemu_opts_find(qemu_find_opts("netdev"), id));
|
1275 |
return 0; |
1276 |
} |
1277 |
|
1278 |
void do_info_network(Monitor *mon)
|
1279 |
{ |
1280 |
VLANState *vlan; |
1281 |
VLANClientState *vc; |
1282 |
|
1283 |
QTAILQ_FOREACH(vlan, &vlans, next) { |
1284 |
monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
|
1285 |
|
1286 |
QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1287 |
monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
|
1288 |
} |
1289 |
} |
1290 |
monitor_printf(mon, "Devices not on any VLAN:\n");
|
1291 |
QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
1292 |
monitor_printf(mon, " %s: %s", vc->name, vc->info_str);
|
1293 |
if (vc->peer) {
|
1294 |
monitor_printf(mon, " peer=%s", vc->peer->name);
|
1295 |
} |
1296 |
monitor_printf(mon, "\n");
|
1297 |
} |
1298 |
} |
1299 |
|
1300 |
int do_set_link(Monitor *mon, const QDict *qdict, QObject **ret_data) |
1301 |
{ |
1302 |
VLANState *vlan; |
1303 |
VLANClientState *vc = NULL;
|
1304 |
const char *name = qdict_get_str(qdict, "name"); |
1305 |
int up = qdict_get_bool(qdict, "up"); |
1306 |
|
1307 |
QTAILQ_FOREACH(vlan, &vlans, next) { |
1308 |
QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1309 |
if (strcmp(vc->name, name) == 0) { |
1310 |
goto done;
|
1311 |
} |
1312 |
} |
1313 |
} |
1314 |
vc = qemu_find_netdev(name); |
1315 |
done:
|
1316 |
|
1317 |
if (!vc) {
|
1318 |
qerror_report(QERR_DEVICE_NOT_FOUND, name); |
1319 |
return -1; |
1320 |
} |
1321 |
|
1322 |
vc->link_down = !up; |
1323 |
|
1324 |
if (vc->info->link_status_changed) {
|
1325 |
vc->info->link_status_changed(vc); |
1326 |
} |
1327 |
return 0; |
1328 |
} |
1329 |
|
1330 |
void net_cleanup(void) |
1331 |
{ |
1332 |
VLANState *vlan; |
1333 |
VLANClientState *vc, *next_vc; |
1334 |
|
1335 |
QTAILQ_FOREACH(vlan, &vlans, next) { |
1336 |
QTAILQ_FOREACH_SAFE(vc, &vlan->clients, next, next_vc) { |
1337 |
qemu_del_vlan_client(vc); |
1338 |
} |
1339 |
} |
1340 |
|
1341 |
QTAILQ_FOREACH_SAFE(vc, &non_vlan_clients, next, next_vc) { |
1342 |
qemu_del_vlan_client(vc); |
1343 |
} |
1344 |
} |
1345 |
|
1346 |
void net_check_clients(void) |
1347 |
{ |
1348 |
VLANState *vlan; |
1349 |
VLANClientState *vc; |
1350 |
int has_nic = 0, has_host_dev = 0; |
1351 |
|
1352 |
QTAILQ_FOREACH(vlan, &vlans, next) { |
1353 |
QTAILQ_FOREACH(vc, &vlan->clients, next) { |
1354 |
switch (vc->info->type) {
|
1355 |
case NET_CLIENT_TYPE_NIC:
|
1356 |
has_nic = 1;
|
1357 |
break;
|
1358 |
case NET_CLIENT_TYPE_SLIRP:
|
1359 |
case NET_CLIENT_TYPE_TAP:
|
1360 |
case NET_CLIENT_TYPE_SOCKET:
|
1361 |
case NET_CLIENT_TYPE_VDE:
|
1362 |
has_host_dev = 1;
|
1363 |
break;
|
1364 |
default: ;
|
1365 |
} |
1366 |
} |
1367 |
if (has_host_dev && !has_nic)
|
1368 |
fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
|
1369 |
if (has_nic && !has_host_dev)
|
1370 |
fprintf(stderr, |
1371 |
"Warning: vlan %d is not connected to host network\n",
|
1372 |
vlan->id); |
1373 |
} |
1374 |
QTAILQ_FOREACH(vc, &non_vlan_clients, next) { |
1375 |
if (!vc->peer) {
|
1376 |
fprintf(stderr, "Warning: %s %s has no peer\n",
|
1377 |
vc->info->type == NET_CLIENT_TYPE_NIC ? "nic" : "netdev", |
1378 |
vc->name); |
1379 |
} |
1380 |
} |
1381 |
} |
1382 |
|
1383 |
static int net_init_client(QemuOpts *opts, void *dummy) |
1384 |
{ |
1385 |
if (net_client_init(NULL, opts, 0) < 0) |
1386 |
return -1; |
1387 |
return 0; |
1388 |
} |
1389 |
|
1390 |
static int net_init_netdev(QemuOpts *opts, void *dummy) |
1391 |
{ |
1392 |
return net_client_init(NULL, opts, 1); |
1393 |
} |
1394 |
|
1395 |
int net_init_clients(void) |
1396 |
{ |
1397 |
QemuOptsList *net = qemu_find_opts("net");
|
1398 |
|
1399 |
if (default_net) {
|
1400 |
/* if no clients, we use a default config */
|
1401 |
qemu_opts_set(net, NULL, "type", "nic"); |
1402 |
#ifdef CONFIG_SLIRP
|
1403 |
qemu_opts_set(net, NULL, "type", "user"); |
1404 |
#endif
|
1405 |
} |
1406 |
|
1407 |
QTAILQ_INIT(&vlans); |
1408 |
QTAILQ_INIT(&non_vlan_clients); |
1409 |
|
1410 |
if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1) |
1411 |
return -1; |
1412 |
|
1413 |
if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) { |
1414 |
return -1; |
1415 |
} |
1416 |
|
1417 |
return 0; |
1418 |
} |
1419 |
|
1420 |
int net_client_parse(QemuOptsList *opts_list, const char *optarg) |
1421 |
{ |
1422 |
#if defined(CONFIG_SLIRP)
|
1423 |
int ret;
|
1424 |
if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
|
1425 |
return ret;
|
1426 |
} |
1427 |
#endif
|
1428 |
|
1429 |
if (!qemu_opts_parse(opts_list, optarg, 1)) { |
1430 |
return -1; |
1431 |
} |
1432 |
|
1433 |
default_net = 0;
|
1434 |
return 0; |
1435 |
} |