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-rw-r--r--net/colo-compare.c11
-rw-r--r--net/colo.c1
-rw-r--r--net/colo.h7
-rw-r--r--net/filter-rewriter.c9
-rw-r--r--net/slirp.c61
-rw-r--r--net/util.h55
6 files changed, 99 insertions, 45 deletions
diff --git a/net/colo-compare.c b/net/colo-compare.c
index 9156ab3349..3e515f3023 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -30,6 +30,7 @@
#include "net/colo-compare.h"
#include "migration/colo.h"
#include "migration/migration.h"
+#include "util.h"
#define TYPE_COLO_COMPARE "colo-compare"
#define COLO_COMPARE(obj) \
@@ -129,19 +130,19 @@ static int compare_chr_send(CompareState *s,
static gint seq_sorter(Packet *a, Packet *b, gpointer data)
{
- struct tcphdr *atcp, *btcp;
+ struct tcp_hdr *atcp, *btcp;
- atcp = (struct tcphdr *)(a->transport_header);
- btcp = (struct tcphdr *)(b->transport_header);
+ atcp = (struct tcp_hdr *)(a->transport_header);
+ btcp = (struct tcp_hdr *)(b->transport_header);
return ntohl(atcp->th_seq) - ntohl(btcp->th_seq);
}
static void fill_pkt_tcp_info(void *data, uint32_t *max_ack)
{
Packet *pkt = data;
- struct tcphdr *tcphd;
+ struct tcp_hdr *tcphd;
- tcphd = (struct tcphdr *)pkt->transport_header;
+ tcphd = (struct tcp_hdr *)pkt->transport_header;
pkt->tcp_seq = ntohl(tcphd->th_seq);
pkt->tcp_ack = ntohl(tcphd->th_ack);
diff --git a/net/colo.c b/net/colo.c
index 49176bf07b..8196b35837 100644
--- a/net/colo.c
+++ b/net/colo.c
@@ -15,6 +15,7 @@
#include "qemu/osdep.h"
#include "trace.h"
#include "colo.h"
+#include "util.h"
uint32_t connection_key_hash(const void *opaque)
{
diff --git a/net/colo.h b/net/colo.h
index 11c5226488..b21c6830b5 100644
--- a/net/colo.h
+++ b/net/colo.h
@@ -15,10 +15,9 @@
#ifndef QEMU_COLO_PROXY_H
#define QEMU_COLO_PROXY_H
-#include "slirp/slirp.h"
#include "qemu/jhash.h"
#include "qemu/timer.h"
-#include "slirp/tcp.h"
+#include "net/eth.h"
#define HASHTABLE_MAX_SIZE 16384
@@ -81,10 +80,10 @@ typedef struct Connection {
/* the maximum of acknowledgement number in secondary_list queue */
uint32_t sack;
/* offset = secondary_seq - primary_seq */
- tcp_seq offset;
+ uint32_t offset;
int tcp_state; /* TCP FSM state */
- tcp_seq fin_ack_seq; /* the seq of 'fin=1,ack=1' */
+ uint32_t fin_ack_seq; /* the seq of 'fin=1,ack=1' */
} Connection;
uint32_t connection_key_hash(const void *opaque);
diff --git a/net/filter-rewriter.c b/net/filter-rewriter.c
index 2e26839bc2..b464abe5e8 100644
--- a/net/filter-rewriter.c
+++ b/net/filter-rewriter.c
@@ -22,6 +22,7 @@
#include "net/checksum.h"
#include "net/colo.h"
#include "migration/colo.h"
+#include "util.h"
#define FILTER_COLO_REWRITER(obj) \
OBJECT_CHECK(RewriterState, (obj), TYPE_FILTER_REWRITER)
@@ -73,9 +74,9 @@ static int handle_primary_tcp_pkt(RewriterState *rf,
Connection *conn,
Packet *pkt, ConnectionKey *key)
{
- struct tcphdr *tcp_pkt;
+ struct tcp_hdr *tcp_pkt;
- tcp_pkt = (struct tcphdr *)pkt->transport_header;
+ tcp_pkt = (struct tcp_hdr *)pkt->transport_header;
if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) {
trace_colo_filter_rewriter_pkt_info(__func__,
inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst),
@@ -176,9 +177,9 @@ static int handle_secondary_tcp_pkt(RewriterState *rf,
Connection *conn,
Packet *pkt, ConnectionKey *key)
{
- struct tcphdr *tcp_pkt;
+ struct tcp_hdr *tcp_pkt;
- tcp_pkt = (struct tcphdr *)pkt->transport_header;
+ tcp_pkt = (struct tcp_hdr *)pkt->transport_header;
if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) {
trace_colo_filter_rewriter_pkt_info(__func__,
diff --git a/net/slirp.c b/net/slirp.c
index 38ae65e4a9..f98425ee9f 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -23,6 +23,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/log.h"
#include "net/slirp.h"
@@ -37,12 +38,12 @@
#include "qemu/error-report.h"
#include "qemu/sockets.h"
#include "slirp/libslirp.h"
-#include "slirp/ip6.h"
#include "chardev/char-fe.h"
#include "sysemu/sysemu.h"
#include "qemu/cutils.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
+#include "util.h"
static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
{
@@ -99,7 +100,7 @@ static void slirp_smb_cleanup(SlirpState *s);
static inline void slirp_smb_cleanup(SlirpState *s) { }
#endif
-void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len)
+static void net_slirp_output(void *opaque, const uint8_t *pkt, int pkt_len)
{
SlirpState *s = opaque;
@@ -140,6 +141,22 @@ static NetClientInfo net_slirp_info = {
.cleanup = net_slirp_cleanup,
};
+static void net_slirp_guest_error(const char *msg)
+{
+ qemu_log_mask(LOG_GUEST_ERROR, "%s", msg);
+}
+
+static int64_t net_slirp_clock_get_ns(void)
+{
+ return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+}
+
+static const SlirpCb slirp_cb = {
+ .output = net_slirp_output,
+ .guest_error = net_slirp_guest_error,
+ .clock_get_ns = net_slirp_clock_get_ns,
+};
+
static int net_slirp_init(NetClientState *peer, const char *model,
const char *name, int restricted,
bool ipv4, const char *vnetwork, const char *vhost,
@@ -279,17 +296,6 @@ static int net_slirp_init(NetClientState *peer, const char *model,
}
#endif
-#if defined(_WIN32) && (_WIN32_WINNT < 0x0600)
- /* No inet_pton helper before Vista... */
- if (vprefix6) {
- /* Unsupported */
- error_setg(errp, "IPv6 prefix not supported");
- return -1;
- }
- memset(&ip6_prefix, 0, sizeof(ip6_prefix));
- ip6_prefix.s6_addr[0] = 0xfe;
- ip6_prefix.s6_addr[1] = 0xc0;
-#else
if (!vprefix6) {
vprefix6 = "fec0::";
}
@@ -297,7 +303,6 @@ static int net_slirp_init(NetClientState *peer, const char *model,
error_setg(errp, "Failed to parse IPv6 prefix");
return -1;
}
-#endif
if (!vprefix6_len) {
vprefix6_len = 64;
@@ -309,10 +314,6 @@ static int net_slirp_init(NetClientState *peer, const char *model,
}
if (vhost6) {
-#if defined(_WIN32) && (_WIN32_WINNT < 0x0600)
- error_setg(errp, "IPv6 host not supported");
- return -1;
-#else
if (!inet_pton(AF_INET6, vhost6, &ip6_host)) {
error_setg(errp, "Failed to parse IPv6 host");
return -1;
@@ -321,17 +322,12 @@ static int net_slirp_init(NetClientState *peer, const char *model,
error_setg(errp, "IPv6 Host doesn't belong to network");
return -1;
}
-#endif
} else {
ip6_host = ip6_prefix;
ip6_host.s6_addr[15] |= 2;
}
if (vnameserver6) {
-#if defined(_WIN32) && (_WIN32_WINNT < 0x0600)
- error_setg(errp, "IPv6 DNS not supported");
- return -1;
-#else
if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) {
error_setg(errp, "Failed to parse IPv6 DNS");
return -1;
@@ -340,7 +336,6 @@ static int net_slirp_init(NetClientState *peer, const char *model,
error_setg(errp, "IPv6 DNS doesn't belong to network");
return -1;
}
-#endif
} else {
ip6_dns = ip6_prefix;
ip6_dns.s6_addr[15] |= 3;
@@ -378,7 +373,8 @@ static int net_slirp_init(NetClientState *peer, const char *model,
ipv6, ip6_prefix, vprefix6_len, ip6_host,
vhostname, tftp_server_name,
tftp_export, bootfile, dhcp,
- dns, ip6_dns, dnssearch, vdomainname, s);
+ dns, ip6_dns, dnssearch, vdomainname,
+ &slirp_cb, s);
QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry);
for (config = slirp_configs; config; config = config->next) {
@@ -708,8 +704,8 @@ static int slirp_smb(SlirpState* s, const char *exported_dir,
CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf);
g_free(smb_conf);
- if (slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 139) < 0 ||
- slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 445) < 0) {
+ if (slirp_add_exec(s->slirp, NULL, smb_cmdline, &vserver_addr, 139) < 0 ||
+ slirp_add_exec(s->slirp, NULL, smb_cmdline, &vserver_addr, 445) < 0) {
slirp_smb_cleanup(s);
g_free(smb_cmdline);
error_setg(errp, "Conflicting/invalid smbserver address");
@@ -773,7 +769,7 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp)
snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port);
if ((strlen(p) > 4) && !strncmp(p, "cmd:", 4)) {
- if (slirp_add_exec(s->slirp, 0, &p[4], &server, port) < 0) {
+ if (slirp_add_exec(s->slirp, NULL, &p[4], &server, port) < 0) {
error_setg(errp, "Conflicting/invalid host:port in guest "
"forwarding rule '%s'", config_str);
return -1;
@@ -800,7 +796,7 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp)
return -1;
}
- if (slirp_add_exec(s->slirp, 3, &fwd->hd, &server, port) < 0) {
+ if (slirp_add_exec(s->slirp, &fwd->hd, NULL, &server, port) < 0) {
error_setg(errp, "Conflicting/invalid host:port in guest "
"forwarding rule '%s'", config_str);
g_free(fwd);
@@ -827,10 +823,11 @@ void hmp_info_usernet(Monitor *mon, const QDict *qdict)
QTAILQ_FOREACH(s, &slirp_stacks, entry) {
int id;
bool got_hub_id = net_hub_id_for_client(&s->nc, &id) == 0;
- monitor_printf(mon, "Hub %d (%s):\n",
+ char *info = slirp_connection_info(s->slirp);
+ monitor_printf(mon, "Hub %d (%s):\n%s",
got_hub_id ? id : -1,
- s->nc.name);
- slirp_connection_info(s->slirp, mon);
+ s->nc.name, info);
+ g_free(info);
}
}
diff --git a/net/util.h b/net/util.h
index 60b73d372d..358185fd50 100644
--- a/net/util.h
+++ b/net/util.h
@@ -26,6 +26,61 @@
#define QEMU_NET_UTIL_H
+/*
+ * Structure of an internet header, naked of options.
+ */
+struct ip {
+#ifdef HOST_WORDS_BIGENDIAN
+ uint8_t ip_v:4, /* version */
+ ip_hl:4; /* header length */
+#else
+ uint8_t ip_hl:4, /* header length */
+ ip_v:4; /* version */
+#endif
+ uint8_t ip_tos; /* type of service */
+ uint16_t ip_len; /* total length */
+ uint16_t ip_id; /* identification */
+ uint16_t ip_off; /* fragment offset field */
+#define IP_DF 0x4000 /* don't fragment flag */
+#define IP_MF 0x2000 /* more fragments flag */
+#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
+ uint8_t ip_ttl; /* time to live */
+ uint8_t ip_p; /* protocol */
+ uint16_t ip_sum; /* checksum */
+ struct in_addr ip_src, ip_dst; /* source and dest address */
+} QEMU_PACKED;
+
+static inline bool in6_equal_net(const struct in6_addr *a,
+ const struct in6_addr *b,
+ int prefix_len)
+{
+ if (memcmp(a, b, prefix_len / 8) != 0) {
+ return 0;
+ }
+
+ if (prefix_len % 8 == 0) {
+ return 1;
+ }
+
+ return a->s6_addr[prefix_len / 8] >> (8 - (prefix_len % 8))
+ == b->s6_addr[prefix_len / 8] >> (8 - (prefix_len % 8));
+}
+
+#define TCPS_CLOSED 0 /* closed */
+#define TCPS_LISTEN 1 /* listening for connection */
+#define TCPS_SYN_SENT 2 /* active, have sent syn */
+#define TCPS_SYN_RECEIVED 3 /* have send and received syn */
+/* states < TCPS_ESTABLISHED are those where connections not established */
+#define TCPS_ESTABLISHED 4 /* established */
+#define TCPS_CLOSE_WAIT 5 /* rcvd fin, waiting for close */
+/* states > TCPS_CLOSE_WAIT are those where user has closed */
+#define TCPS_FIN_WAIT_1 6 /* have closed, sent fin */
+#define TCPS_CLOSING 7 /* closed xchd FIN; await FIN ACK */
+#define TCPS_LAST_ACK 8 /* had fin and close; await FIN ACK */
+/* states > TCPS_CLOSE_WAIT && < TCPS_FIN_WAIT_2 await ACK of FIN */
+#define TCPS_FIN_WAIT_2 9 /* have closed, fin is acked */
+#define TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */
+
int net_parse_macaddr(uint8_t *macaddr, const char *p);
#endif /* QEMU_NET_UTIL_H */
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-23 23:37:21 +0200