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authorJason Wang <jasowang@redhat.com>2021-04-02 11:03:33 +0800
committerJason Wang <jasowang@redhat.com>2021-04-08 17:33:59 +0800
commit56e6f594bf47a0a543ff5e6d14701355fe99b098 (patch)
tree0b3ee5f7b43fde16795a00537796a87f0289d020
parent603f2f7c6c8c747d0189936a74fb33e610ce7858 (diff)
downloadqemu-arm-56e6f594bf47a0a543ff5e6d14701355fe99b098.tar.gz
Revert "net: Move NetClientState.info_str to dynamic allocations"
Several issues has been reported for query-netdev info series. Consider it's late in the rc, this reverts commit commit 59b5437eb732d6b103a9bc279c3482c834d1eff9. Signed-off-by: Jason Wang <jasowang@redhat.com>
-rw-r--r--hw/net/xen_nic.c5
-rw-r--r--include/net/net.h2
-rw-r--r--net/l2tpv3.c3
-rw-r--r--net/net.c14
-rw-r--r--net/slirp.c5
-rw-r--r--net/socket.c43
-rw-r--r--net/tap-win32.c3
-rw-r--r--net/tap.c13
-rw-r--r--net/vde.c3
-rw-r--r--net/vhost-user.c3
-rw-r--r--net/vhost-vdpa.c2
11 files changed, 49 insertions, 47 deletions
diff --git a/hw/net/xen_nic.c b/hw/net/xen_nic.c
index 8431808ea0..5c815b4f0c 100644
--- a/hw/net/xen_nic.c
+++ b/hw/net/xen_nic.c
@@ -296,8 +296,9 @@ static int net_init(struct XenLegacyDevice *xendev)
netdev->nic = qemu_new_nic(&net_xen_info, &netdev->conf,
"xen", NULL, netdev);
- qemu_get_queue(netdev->nic)->info_str = g_strdup_printf(
- "nic: xenbus vif macaddr=%s", netdev->mac);
+ snprintf(qemu_get_queue(netdev->nic)->info_str,
+ sizeof(qemu_get_queue(netdev->nic)->info_str),
+ "nic: xenbus vif macaddr=%s", netdev->mac);
/* fill info */
xenstore_write_be_int(&netdev->xendev, "feature-rx-copy", 1);
diff --git a/include/net/net.h b/include/net/net.h
index 3559f3ca19..e5ba61cf8d 100644
--- a/include/net/net.h
+++ b/include/net/net.h
@@ -94,7 +94,7 @@ struct NetClientState {
NetQueue *incoming_queue;
char *model;
char *name;
- char *info_str;
+ char info_str[256];
NetdevInfo *stored_config;
unsigned receive_disabled : 1;
NetClientDestructor *destructor;
diff --git a/net/l2tpv3.c b/net/l2tpv3.c
index 96611cb4af..8aa0a3e1a0 100644
--- a/net/l2tpv3.c
+++ b/net/l2tpv3.c
@@ -730,7 +730,8 @@ int net_init_l2tpv3(const Netdev *netdev,
QAPI_CLONE_MEMBERS(NetdevL2TPv3Options,
&nc->stored_config->u.l2tpv3, l2tpv3);
- s->nc.info_str = g_strdup_printf("l2tpv3: connected");
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "l2tpv3: connected");
return 0;
outerr:
qemu_del_net_client(nc);
diff --git a/net/net.c b/net/net.c
index 277da712eb..9a2a6ab155 100644
--- a/net/net.c
+++ b/net/net.c
@@ -129,12 +129,11 @@ char *qemu_mac_strdup_printf(const uint8_t *macaddr)
void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6])
{
- g_free(nc->info_str);
- nc->info_str = g_strdup_printf(
- "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
- nc->model,
- macaddr[0], macaddr[1], macaddr[2],
- macaddr[3], macaddr[4], macaddr[5]);
+ snprintf(nc->info_str, sizeof(nc->info_str),
+ "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
+ nc->model,
+ macaddr[0], macaddr[1], macaddr[2],
+ macaddr[3], macaddr[4], macaddr[5]);
}
static int mac_table[256] = {0};
@@ -353,7 +352,6 @@ static void qemu_free_net_client(NetClientState *nc)
}
g_free(nc->name);
g_free(nc->model);
- g_free(nc->info_str);
qapi_free_NetdevInfo(nc->stored_config);
if (nc->destructor) {
nc->destructor(nc);
@@ -1228,7 +1226,7 @@ void print_net_client(Monitor *mon, NetClientState *nc)
monitor_printf(mon, "%s: index=%d,type=%s,%s\n", nc->name,
nc->queue_index,
NetClientDriver_str(nc->info->type),
- nc->info_str ? nc->info_str : "");
+ nc->info_str);
if (!QTAILQ_EMPTY(&nc->filters)) {
monitor_printf(mon, "filters:\n");
}
diff --git a/net/slirp.c b/net/slirp.c
index 67f0f1d925..b3b979845e 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -674,8 +674,9 @@ static int net_slirp_init(NetClientState *peer, const char *model,
stored->tftp_server_name = g_strdup(tftp_server_name);
}
- nc->info_str = g_strdup_printf("net=%s,restrict=%s", inet_ntoa(net),
- restricted ? "on" : "off");
+ snprintf(nc->info_str, sizeof(nc->info_str),
+ "net=%s,restrict=%s", inet_ntoa(net),
+ restricted ? "on" : "off");
s = DO_UPCAST(SlirpState, nc, nc);
diff --git a/net/socket.c b/net/socket.c
index 98172347d7..1614523b82 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -180,8 +180,7 @@ static void net_socket_send(void *opaque)
s->fd = -1;
net_socket_rs_init(&s->rs, net_socket_rs_finalize, false);
s->nc.link_down = true;
- g_free(s->nc.info_str);
- s->nc.info_str = g_new0(char, 1);
+ memset(s->nc.info_str, 0, sizeof(s->nc.info_str));
return;
}
@@ -401,16 +400,16 @@ static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer,
stored->mcast = g_strdup(mcast);
s->dgram_dst = saddr;
- nc->info_str = g_strdup_printf("socket: fd=%d (cloned mcast=%s:%d)",
- fd, inet_ntoa(saddr.sin_addr),
- ntohs(saddr.sin_port));
+ snprintf(nc->info_str, sizeof(nc->info_str),
+ "socket: fd=%d (cloned mcast=%s:%d)",
+ fd, inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
} else {
if (sa_type == SOCKET_ADDRESS_TYPE_UNIX) {
s->dgram_dst.sin_family = AF_UNIX;
}
- nc->info_str = g_strdup_printf("socket: fd=%d %s",
- fd, SocketAddressType_str(sa_type));
+ snprintf(nc->info_str, sizeof(nc->info_str),
+ "socket: fd=%d %s", fd, SocketAddressType_str(sa_type));
}
return s;
@@ -445,7 +444,7 @@ static NetSocketState *net_socket_fd_init_stream(NetClientState *peer,
nc = qemu_new_net_client(&net_socket_info, peer, model, name);
- nc->info_str = g_strdup_printf("socket: fd=%d", fd);
+ snprintf(nc->info_str, sizeof(nc->info_str), "socket: fd=%d", fd);
s = DO_UPCAST(NetSocketState, nc, nc);
@@ -529,10 +528,9 @@ static void net_socket_accept(void *opaque)
stored->has_fd = true;
stored->fd = g_strdup_printf("%d", fd);
- g_free(s->nc.info_str);
- s->nc.info_str = g_strdup_printf("socket: connection from %s:%d",
- inet_ntoa(saddr.sin_addr),
- ntohs(saddr.sin_port));
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: connection from %s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
}
static int net_socket_listen_init(NetClientState *peer,
@@ -647,10 +645,9 @@ static int net_socket_connect_init(NetClientState *peer,
stored->has_connect = true;
stored->connect = g_strdup(host_str);
- g_free(s->nc.info_str);
- s->nc.info_str = g_strdup_printf("socket: connect to %s:%d",
- inet_ntoa(saddr.sin_addr),
- ntohs(saddr.sin_port));
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: connect to %s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
return 0;
}
@@ -707,10 +704,9 @@ static int net_socket_mcast_init(NetClientState *peer,
stored->localaddr = g_strdup(localaddr_str);
}
- g_free(s->nc.info_str);
- s->nc.info_str = g_strdup_printf("socket: mcast=%s:%d",
- inet_ntoa(saddr.sin_addr),
- ntohs(saddr.sin_port));
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: mcast=%s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
return 0;
}
@@ -773,10 +769,9 @@ static int net_socket_udp_init(NetClientState *peer,
stored->has_udp = true;
stored->udp = g_strdup(rhost);
- g_free(s->nc.info_str);
- s->nc.info_str = g_strdup_printf("socket: udp=%s:%d",
- inet_ntoa(raddr.sin_addr),
- ntohs(raddr.sin_port));
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: udp=%s:%d",
+ inet_ntoa(raddr.sin_addr), ntohs(raddr.sin_port));
return 0;
}
diff --git a/net/tap-win32.c b/net/tap-win32.c
index 959266c658..2a2ba4f527 100644
--- a/net/tap-win32.c
+++ b/net/tap-win32.c
@@ -797,7 +797,8 @@ static int tap_win32_init(NetClientState *peer, const char *model,
stored->has_ifname = true;
stored->ifname = g_strdup(ifname);
- s->nc.info_str = g_strdup_printf("tap: ifname=%s", ifname);
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "tap: ifname=%s", ifname);
s->handle = handle;
diff --git a/net/tap.c b/net/tap.c
index 522ce7e487..35895192c5 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -635,7 +635,8 @@ int net_init_bridge(const Netdev *netdev, const char *name,
stored->helper = g_strdup(helper);
}
- s->nc.info_str = g_strdup_printf("helper=%s,br=%s", helper, br);
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str), "helper=%s,br=%s", helper,
+ br);
return 0;
}
@@ -723,7 +724,7 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer,
g_free(tmp_s);
}
- s->nc.info_str = g_strdup_printf("fd=%d", fd);
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str), "fd=%d", fd);
} else if (tap->has_helper) {
if (!stored->has_helper) {
stored->has_helper = true;
@@ -736,7 +737,8 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer,
g_strdup(DEFAULT_BRIDGE_INTERFACE);
}
- s->nc.info_str = g_strdup_printf("helper=%s", tap->helper);
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str), "helper=%s",
+ tap->helper);
} else {
if (ifname && !stored->has_ifname) {
stored->has_ifname = true;
@@ -753,8 +755,9 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer,
stored->downscript = g_strdup(downscript);
}
- s->nc.info_str = g_strdup_printf("ifname=%s,script=%s,downscript=%s",
- ifname, script, downscript);
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "ifname=%s,script=%s,downscript=%s", ifname, script,
+ downscript);
if (strcmp(downscript, "no") != 0) {
snprintf(s->down_script, sizeof(s->down_script), "%s", downscript);
diff --git a/net/vde.c b/net/vde.c
index 67de6eb0c5..b0b8800571 100644
--- a/net/vde.c
+++ b/net/vde.c
@@ -100,7 +100,8 @@ static int net_vde_init(NetClientState *peer, const char *model,
nc = qemu_new_net_client(&net_vde_info, peer, model, name);
- nc->info_str = g_strdup_printf("sock=%s,fd=%d", sock, vde_datafd(vde));
+ snprintf(nc->info_str, sizeof(nc->info_str), "sock=%s,fd=%d",
+ sock, vde_datafd(vde));
s = DO_UPCAST(VDEState, nc, nc);
diff --git a/net/vhost-user.c b/net/vhost-user.c
index 49c9a740c2..5b7056be25 100644
--- a/net/vhost-user.c
+++ b/net/vhost-user.c
@@ -327,7 +327,8 @@ static int net_vhost_user_init(NetClientState *peer, const char *device,
user = g_new0(struct VhostUserState, 1);
for (i = 0; i < queues; i++) {
nc = qemu_new_net_client(&net_vhost_user_info, peer, device, name);
- nc->info_str = g_strdup_printf("vhost-user%d to %s", i, chr->label);
+ snprintf(nc->info_str, sizeof(nc->info_str), "vhost-user%d to %s",
+ i, chr->label);
nc->queue_index = i;
if (!nc0) {
nc0 = nc;
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 423d71770d..8c27ea0142 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -200,7 +200,7 @@ static int net_vhost_vdpa_init(NetClientState *peer, const char *device,
stored->has_queues = true;
stored->queues = 1; /* TODO: change when support multiqueue */
- nc->info_str = g_strdup_printf(TYPE_VHOST_VDPA);
+ snprintf(nc->info_str, sizeof(nc->info_str), TYPE_VHOST_VDPA);
nc->queue_index = 0;
s = DO_UPCAST(VhostVDPAState, nc, nc);
vdpa_device_fd = qemu_open_old(vhostdev, O_RDWR);