system/qemu
system/qemu
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/qemu synced 2024-11-05 20:35:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

slirp: Add info usernet for dumping connection states

Browse source 
Break out sockstats from the slirp statistics and present them under the
new info category "usernet". This patch also improves the current output
/wrt proper reporting connection source and destination.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2009-06-24 14:42:29 +02:00 committed by Anthony Liguori
parent 4a82347a47
commit 6dbe553fe9
9 changed files with 102 additions and 55 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
monitor.c
View file

@ -1735,6 +1735,8 @@ static const mon_cmd_t info_cmds[] = {
#if defined(CONFIG_SLIRP)
{ "slirp", "", do_info_slirp,
"", "show SLIRP statistics", },
{ "usernet", "", do_info_usernet,
"", "show user network stack connection states", },
#endif
{ "migrate", "", do_info_migrate, "", "show migration status" },
{ "balloon", "", do_info_balloon,

6
net.c
View file

@ -1198,6 +1198,12 @@ static void slirp_guestfwd(Monitor *mon, const char *config_str,
config_error(mon, "invalid guest forwarding rule '%s'\n", config_str);
}
void do_info_usernet(Monitor *mon)
{
monitor_printf(mon, "VLAN %d (%s):\n", slirp_vc->vlan->id, slirp_vc->name);
slirp_connection_info(mon);
}
#endif /* CONFIG_SLIRP */
#if !defined(_WIN32)

2
net.h
View file

@ -81,6 +81,8 @@ void qemu_handler_true(void *opaque);
void do_info_network(Monitor *mon);
int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
void do_info_usernet(Monitor *mon);
/* NIC info */
#define MAX_NICS 8

2
qemu-monitor.hx
View file

@ -87,6 +87,8 @@ show the current VM UUID
show CPU statistics
@item info slirp
show SLIRP statistics (if available)
@item info usernet
show user network stack connection states
@item info migrate
show migration status
@item info balloon

42
slirp/debug.c
View file

@ -291,47 +291,6 @@ mbufstats(void)
lprint(" %6d mbufs on used list\r\n", i);
lprint(" %6d mbufs queued as packets\r\n\r\n", if_queued);
}
static void
sockstats(void)
{
char buff[256];
int n;
struct socket *so;
lprint(" \r\n");
lprint(
"Proto[state] Sock Local Address, Port Remote Address, Port RecvQ SendQ\r\n");
for (so = tcb.so_next; so != &tcb; so = so->so_next) {
n = sprintf(buff, "tcp[%s]", so->so_tcpcb?tcpstates[so->so_tcpcb->t_state]:"NONE");
while (n < 17)
buff[n++] = ' ';
buff[17] = 0;
lprint("%s %3d %15s %5d ",
buff, so->s,
inet_ntoa(so->so_laddr), ntohs(so->so_lport));
lprint("%15s %5d %5d %5d\r\n",
inet_ntoa(so->so_faddr), ntohs(so->so_fport),
so->so_rcv.sb_cc, so->so_snd.sb_cc);
}
for (so = udb.so_next; so != &udb; so = so->so_next) {
n = sprintf(buff, "udp[%d sec]", (so->so_expire - curtime) / 1000);
while (n < 17)
buff[n++] = ' ';
buff[17] = 0;
lprint("%s %3d %15s %5d ",
buff, so->s,
inet_ntoa(so->so_laddr), ntohs(so->so_lport));
lprint("%15s %5d %5d %5d\r\n",
inet_ntoa(so->so_faddr), ntohs(so->so_fport),
so->so_rcv.sb_cc, so->so_snd.sb_cc);
}
}
#endif
#ifndef CONFIG_QEMU
@ -386,7 +345,6 @@ slirp_stats(void)
udpstats();
icmpstats();
mbufstats();
sockstats();
#else
lprint("SLIRP statistics code not compiled.\n");
#endif

4
slirp/libslirp.h
View file

@ -5,6 +5,8 @@
extern "C" {
#endif
#include <qemu-common.h>
void slirp_init(int restricted, struct in_addr vnetwork,
struct in_addr vnetmask, struct in_addr vhost,
const char *vhostname, const char *tftp_path,
@ -29,6 +31,8 @@ int slirp_add_exec(int do_pty, const void *args, struct in_addr guest_addr,
int guest_port);
void slirp_stats(void);
void slirp_connection_info(Monitor *mon);
void slirp_socket_recv(struct in_addr guest_addr, int guest_port,
const uint8_t *buf, int size);
size_t slirp_socket_can_recv(struct in_addr guest_addr, int guest_port);

86
slirp/misc.c
View file

@ -6,6 +6,9 @@
*/
#include <slirp.h>
#include <libslirp.h>
#include "monitor.h"
u_int curtime, time_fasttimo, last_slowtimo;
@ -906,3 +909,86 @@ rsh_exec(so,ns, user, host, args)
}
}
#endif
void slirp_connection_info(Monitor *mon)
{
const char * const tcpstates[] = {
[TCPS_CLOSED] = "CLOSED",
[TCPS_LISTEN] = "LISTEN",
[TCPS_SYN_SENT] = "SYN_SENT",
[TCPS_SYN_RECEIVED] = "SYN_RCVD",
[TCPS_ESTABLISHED] = "ESTABLISHED",
[TCPS_CLOSE_WAIT] = "CLOSE_WAIT",
[TCPS_FIN_WAIT_1] = "FIN_WAIT_1",
[TCPS_CLOSING] = "CLOSING",
[TCPS_LAST_ACK] = "LAST_ACK",
[TCPS_FIN_WAIT_2] = "FIN_WAIT_2",
[TCPS_TIME_WAIT] = "TIME_WAIT",
};
struct in_addr dst_addr;
struct sockaddr_in src;
socklen_t src_len;
uint16_t dst_port;
struct socket *so;
const char *state;
char buf[20];
int n;
monitor_printf(mon, " Protocol[State] FD Source Address Port "
"Dest. Address Port RecvQ SendQ\n");
for (so = tcb.so_next; so != &tcb; so = so->so_next) {
if (so->so_state & SS_HOSTFWD) {
state = "HOST_FORWARD";
} else if (so->so_tcpcb) {
state = tcpstates[so->so_tcpcb->t_state];
} else {
state = "NONE";
}
if (so->so_state & (SS_HOSTFWD | SS_INCOMING)) {
src_len = sizeof(src);
getsockname(so->s, (struct sockaddr *)&src, &src_len);
dst_addr = so->so_laddr;
dst_port = so->so_lport;
} else {
src.sin_addr = so->so_laddr;
src.sin_port = so->so_lport;
dst_addr = so->so_faddr;
dst_port = so->so_fport;
}
n = snprintf(buf, sizeof(buf), " TCP[%s]", state);
memset(&buf[n], ' ', 19 - n);
buf[19] = 0;
monitor_printf(mon, "%s %3d %15s %5d ", buf, so->s,
src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
ntohs(src.sin_port));
monitor_printf(mon, "%15s %5d %5d %5d\n",
inet_ntoa(dst_addr), ntohs(dst_port),
so->so_rcv.sb_cc, so->so_snd.sb_cc);
}
for (so = udb.so_next; so != &udb; so = so->so_next) {
if (so->so_state & SS_HOSTFWD) {
n = snprintf(buf, sizeof(buf), " UDP[HOST_FORWARD]");
src_len = sizeof(src);
getsockname(so->s, (struct sockaddr *)&src, &src_len);
dst_addr = so->so_laddr;
dst_port = so->so_lport;
} else {
n = snprintf(buf, sizeof(buf), " UDP[%d sec]",
(so->so_expire - curtime) / 1000);
src.sin_addr = so->so_laddr;
src.sin_port = so->so_lport;
dst_addr = so->so_faddr;
dst_port = so->so_fport;
}
memset(&buf[n], ' ', 19 - n);
buf[19] = 0;
monitor_printf(mon, "%s %3d %15s %5d ", buf, so->s,
src.sin_addr.s_addr ? inet_ntoa(src.sin_addr) : "*",
ntohs(src.sin_port));
monitor_printf(mon, "%15s %5d %5d %5d\n",
inet_ntoa(dst_addr), ntohs(dst_port),
so->so_rcv.sb_cc, so->so_snd.sb_cc);
}
}

2
slirp/tcp.h
View file

@ -166,6 +166,4 @@ struct tcphdr {
extern tcp_seq tcp_iss; /* tcp initial send seq # */
extern const char * const tcpstates[];
#endif

11
slirp/tcp_output.c
View file

@ -40,17 +40,6 @@
#include <slirp.h>
/*
* Since this is only used in "stats socket", we give meaning
* names instead of the REAL names
*/
const char * const tcpstates[] = {
/* "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", */
"REDIRECT", "LISTEN", "SYN_SENT", "SYN_RCVD",
"ESTABLISHED", "CLOSE_WAIT", "FIN_WAIT_1", "CLOSING",
"LAST_ACK", "FIN_WAIT_2", "TIME_WAIT",
};
static const u_char tcp_outflags[TCP_NSTATES] = {
TH_RST|TH_ACK, 0, TH_SYN, TH_SYN|TH_ACK,
TH_ACK, TH_ACK, TH_FIN|TH_ACK, TH_FIN|TH_ACK,