* THE SOFTWARE.
*/
-#include "net/tap.h"
-#include "sysemu.h"
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "tap_int.h"
+#include "qemu/ctype.h"
+#include "qemu/cutils.h"
-#include <sys/stat.h>
#include <sys/ethernet.h>
#include <sys/sockio.h>
#include <netinet/arp.h>
#include <netinet/udp.h>
#include <netinet/tcp.h>
#include <net/if.h>
-#include <syslog.h>
#include <stropts.h>
-#include "qemu-error.h"
+#include "qemu/error-report.h"
ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
{
* Allocate TAP device, returns opened fd.
* Stores dev name in the first arg(must be large enough).
*/
-static int tap_alloc(char *dev, size_t dev_size)
+static int tap_alloc(char *dev, size_t dev_size, Error **errp)
{
+ /* FIXME leaks like a sieve on error paths */
+ /* FIXME suspicious: many errors are reported, then ignored */
int tap_fd, if_fd, ppa = -1;
static int ip_fd = 0;
char *ptr;
if( ip_fd )
close(ip_fd);
- TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
+ ip_fd = RETRY_ON_EINTR(open("/dev/udp", O_RDWR, 0));
if (ip_fd < 0) {
- syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
- return -1;
+ error_setg(errp, "Can't open /dev/ip (actually /dev/udp)");
+ return -1;
}
- TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
+ tap_fd = RETRY_ON_EINTR(open("/dev/tap", O_RDWR, 0));
if (tap_fd < 0) {
- syslog(LOG_ERR, "Can't open /dev/tap");
- return -1;
+ error_setg(errp, "Can't open /dev/tap");
+ return -1;
}
/* Assign a new PPA and get its unit number. */
strioc_ppa.ic_len = sizeof(ppa);
strioc_ppa.ic_dp = (char *)&ppa;
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
- syslog (LOG_ERR, "Can't assign new interface");
+ error_report("Can't assign new interface");
- TFR(if_fd = open("/dev/tap", O_RDWR, 0));
+ if_fd = RETRY_ON_EINTR(open("/dev/tap", O_RDWR, 0));
if (if_fd < 0) {
- syslog(LOG_ERR, "Can't open /dev/tap (2)");
- return -1;
+ error_setg(errp, "Can't open /dev/tap (2)");
+ return -1;
}
if(ioctl(if_fd, I_PUSH, "ip") < 0){
- syslog(LOG_ERR, "Can't push IP module");
- return -1;
+ error_setg(errp, "Can't push IP module");
+ return -1;
}
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
- syslog(LOG_ERR, "Can't get flags\n");
+ error_report("Can't get flags");
snprintf (actual_name, 32, "tap%d", ppa);
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
/* Assign ppa according to the unit number returned by tun device */
if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
- syslog (LOG_ERR, "Can't set PPA %d", ppa);
+ error_report("Can't set PPA %d", ppa);
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
- syslog (LOG_ERR, "Can't get flags\n");
+ error_report("Can't get flags");
/* Push arp module to if_fd */
if (ioctl (if_fd, I_PUSH, "arp") < 0)
- syslog (LOG_ERR, "Can't push ARP module (2)");
+ error_report("Can't push ARP module (2)");
/* Push arp module to ip_fd */
if (ioctl (ip_fd, I_POP, NULL) < 0)
- syslog (LOG_ERR, "I_POP failed\n");
+ error_report("I_POP failed");
if (ioctl (ip_fd, I_PUSH, "arp") < 0)
- syslog (LOG_ERR, "Can't push ARP module (3)\n");
+ error_report("Can't push ARP module (3)");
/* Open arp_fd */
- TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
+ arp_fd = RETRY_ON_EINTR(open("/dev/tap", O_RDWR, 0));
if (arp_fd < 0)
- syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
+ error_report("Can't open %s", "/dev/tap");
/* Set ifname to arp */
strioc_if.ic_cmd = SIOCSLIFNAME;
strioc_if.ic_len = sizeof(ifr);
strioc_if.ic_dp = (char *)𝔦
if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
- syslog (LOG_ERR, "Can't set ifname to arp\n");
+ error_report("Can't set ifname to arp");
}
if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
- syslog(LOG_ERR, "Can't link TAP device to IP");
- return -1;
+ error_setg(errp, "Can't link TAP device to IP");
+ return -1;
}
if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
- syslog (LOG_ERR, "Can't link TAP device to ARP");
+ error_report("Can't link TAP device to ARP");
close (if_fd);
{
ioctl (ip_fd, I_PUNLINK , arp_muxid);
ioctl (ip_fd, I_PUNLINK, ip_muxid);
- syslog (LOG_ERR, "Can't set multiplexor id");
+ error_report("Can't set multiplexor id");
}
snprintf(dev, dev_size, "tap%d", ppa);
return tap_fd;
}
-int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required)
+int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
+ int vnet_hdr_required, int mq_required, Error **errp)
{
char dev[10]="";
int fd;
- if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
- fprintf(stderr, "Cannot allocate TAP device\n");
- return -1;
+
+ fd = tap_alloc(dev, sizeof(dev), errp);
+ if (fd < 0) {
+ return -1;
}
pstrcpy(ifname, ifname_size, dev);
if (*vnet_hdr) {
*vnet_hdr = 0;
if (vnet_hdr_required && !*vnet_hdr) {
- error_report("vnet_hdr=1 requested, but no kernel "
- "support for IFF_VNET_HDR available");
+ error_setg(errp, "vnet_hdr=1 requested, but no kernel "
+ "support for IFF_VNET_HDR available");
close(fd);
return -1;
}
}
- fcntl(fd, F_SETFL, O_NONBLOCK);
+ g_unix_set_fd_nonblocking(fd, true, NULL);
return fd;
}
-int tap_set_sndbuf(int fd, QemuOpts *opts)
+void tap_set_sndbuf(int fd, const NetdevTapOptions *tap, Error **errp)
{
- return 0;
}
-int tap_probe_vnet_hdr(int fd)
+int tap_probe_vnet_hdr(int fd, Error **errp)
{
return 0;
}
return 0;
}
+int tap_probe_has_uso(int fd)
+{
+ return 0;
+}
+
int tap_probe_vnet_hdr_len(int fd, int len)
{
return 0;
{
}
+int tap_fd_set_vnet_le(int fd, int is_le)
+{
+ return -EINVAL;
+}
+
+int tap_fd_set_vnet_be(int fd, int is_be)
+{
+ return -EINVAL;
+}
+
void tap_fd_set_offload(int fd, int csum, int tso4,
- int tso6, int ecn, int ufo)
+ int tso6, int ecn, int ufo, int uso4, int uso6)
+{
+}
+
+int tap_fd_enable(int fd)
+{
+ return -1;
+}
+
+int tap_fd_disable(int fd)
+{
+ return -1;
+}
+
+int tap_fd_get_ifname(int fd, char *ifname)
+{
+ return -1;
+}
+
+int tap_fd_set_steering_ebpf(int fd, int prog_fd)
{
+ return -1;
}
projects / mirror_qemu.git / blobdiff