mirror of
https://github.com/xemu-project/xemu.git
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net: move dump backend code from net.c to net/dump.c
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Mark McLoughlin
Anthony Liguori
parent
42281ac9a3
commit
1abecf77d8
1
Makefile
1
Makefile
@ -101,6 +101,7 @@ block-obj-y += $(addprefix block/, $(block-nested-y))
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net-obj-y = net.o
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net-obj-y = net.o
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net-nested-y = queue.o checksum.o
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net-nested-y = queue.o checksum.o
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net-nested-y += socket.o
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net-nested-y += socket.o
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net-nested-y += dump.o
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net-nested-$(CONFIG_POSIX) += tap.o
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net-nested-$(CONFIG_POSIX) += tap.o
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net-nested-$(CONFIG_LINUX) += tap-linux.o
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net-nested-$(CONFIG_LINUX) += tap-linux.o
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net-nested-$(CONFIG_WIN32) += tap-win32.o
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net-nested-$(CONFIG_WIN32) += tap-win32.o
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127
net.c
127
net.c
@ -90,6 +90,7 @@
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#include "net.h"
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#include "net.h"
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#include "net/tap.h"
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#include "net/tap.h"
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#include "net/socket.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"
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#include "net/slirp.h"
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#include "net/vde.h"
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#include "net/vde.h"
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#include "monitor.h"
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#include "monitor.h"
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@ -717,110 +718,6 @@ qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
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return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
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return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
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}
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}
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typedef struct DumpState {
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VLANClientState *pcap_vc;
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int fd;
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int pcap_caplen;
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} DumpState;
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#define PCAP_MAGIC 0xa1b2c3d4
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struct pcap_file_hdr {
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uint32_t magic;
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uint16_t version_major;
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uint16_t version_minor;
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int32_t thiszone;
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uint32_t sigfigs;
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uint32_t snaplen;
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uint32_t linktype;
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};
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struct pcap_sf_pkthdr {
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struct {
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int32_t tv_sec;
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int32_t tv_usec;
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} ts;
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uint32_t caplen;
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uint32_t len;
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};
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static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
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{
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DumpState *s = vc->opaque;
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struct pcap_sf_pkthdr hdr;
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int64_t ts;
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int caplen;
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/* Early return in case of previous error. */
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if (s->fd < 0) {
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return size;
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}
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ts = muldiv64(qemu_get_clock(vm_clock), 1000000, get_ticks_per_sec());
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caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
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hdr.ts.tv_sec = ts / 1000000;
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hdr.ts.tv_usec = ts % 1000000;
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hdr.caplen = caplen;
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hdr.len = size;
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if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
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write(s->fd, buf, caplen) != caplen) {
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qemu_log("-net dump write error - stop dump\n");
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close(s->fd);
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s->fd = -1;
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}
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return size;
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}
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static void net_dump_cleanup(VLANClientState *vc)
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{
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DumpState *s = vc->opaque;
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close(s->fd);
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qemu_free(s);
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}
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static int net_dump_init(VLANState *vlan, const char *device,
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const char *name, const char *filename, int len)
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{
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struct pcap_file_hdr hdr;
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DumpState *s;
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s = qemu_malloc(sizeof(DumpState));
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s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
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if (s->fd < 0) {
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qemu_error("-net dump: can't open %s\n", filename);
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return -1;
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}
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s->pcap_caplen = len;
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hdr.magic = PCAP_MAGIC;
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hdr.version_major = 2;
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hdr.version_minor = 4;
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hdr.thiszone = 0;
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hdr.sigfigs = 0;
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hdr.snaplen = s->pcap_caplen;
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hdr.linktype = 1;
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if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
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qemu_error("-net dump write error: %s\n", strerror(errno));
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close(s->fd);
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qemu_free(s);
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return -1;
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}
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s->pcap_vc = qemu_new_vlan_client(NET_CLIENT_TYPE_DUMP,
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vlan, NULL, device, name, NULL,
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dump_receive, NULL, NULL,
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net_dump_cleanup, s);
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snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
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"dump to %s (len=%d)", filename, len);
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return 0;
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}
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/* find or alloc a new VLAN */
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/* find or alloc a new VLAN */
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VLANState *qemu_find_vlan(int id, int allocate)
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VLANState *qemu_find_vlan(int id, int allocate)
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{
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{
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@ -1000,28 +897,6 @@ static int net_init_nic(QemuOpts *opts,
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return idx;
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return idx;
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}
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}
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static int net_init_dump(QemuOpts *opts,
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Monitor *mon,
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const char *name,
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VLANState *vlan)
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{
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int len;
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const char *file;
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char def_file[128];
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assert(vlan);
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file = qemu_opt_get(opts, "file");
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if (!file) {
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snprintf(def_file, sizeof(def_file), "qemu-vlan%d.pcap", vlan->id);
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file = def_file;
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}
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len = qemu_opt_get_size(opts, "len", 65536);
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return net_dump_init(vlan, "dump", name, file, len);
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}
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#define NET_COMMON_PARAMS_DESC \
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#define NET_COMMON_PARAMS_DESC \
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{ \
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{ \
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.name = "type", \
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.name = "type", \
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151
net/dump.c
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151
net/dump.c
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@ -0,0 +1,151 @@
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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 "dump.h"
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#include "qemu-common.h"
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#include "sysemu.h"
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#include "qemu-log.h"
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typedef struct DumpState {
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VLANClientState *pcap_vc;
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int fd;
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int pcap_caplen;
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} DumpState;
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#define PCAP_MAGIC 0xa1b2c3d4
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struct pcap_file_hdr {
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uint32_t magic;
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uint16_t version_major;
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uint16_t version_minor;
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int32_t thiszone;
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uint32_t sigfigs;
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uint32_t snaplen;
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uint32_t linktype;
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};
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struct pcap_sf_pkthdr {
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struct {
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int32_t tv_sec;
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int32_t tv_usec;
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} ts;
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uint32_t caplen;
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uint32_t len;
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};
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static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
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{
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DumpState *s = vc->opaque;
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struct pcap_sf_pkthdr hdr;
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int64_t ts;
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int caplen;
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/* Early return in case of previous error. */
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if (s->fd < 0) {
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return size;
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}
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ts = muldiv64(qemu_get_clock(vm_clock), 1000000, get_ticks_per_sec());
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caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
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hdr.ts.tv_sec = ts / 1000000;
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hdr.ts.tv_usec = ts % 1000000;
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hdr.caplen = caplen;
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hdr.len = size;
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if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
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write(s->fd, buf, caplen) != caplen) {
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qemu_log("-net dump write error - stop dump\n");
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close(s->fd);
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s->fd = -1;
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}
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return size;
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}
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static void net_dump_cleanup(VLANClientState *vc)
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{
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DumpState *s = vc->opaque;
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close(s->fd);
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qemu_free(s);
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}
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static int net_dump_init(VLANState *vlan, const char *device,
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const char *name, const char *filename, int len)
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{
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struct pcap_file_hdr hdr;
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DumpState *s;
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s = qemu_malloc(sizeof(DumpState));
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s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
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if (s->fd < 0) {
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qemu_error("-net dump: can't open %s\n", filename);
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return -1;
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}
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s->pcap_caplen = len;
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hdr.magic = PCAP_MAGIC;
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hdr.version_major = 2;
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hdr.version_minor = 4;
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hdr.thiszone = 0;
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hdr.sigfigs = 0;
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hdr.snaplen = s->pcap_caplen;
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hdr.linktype = 1;
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if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
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qemu_error("-net dump write error: %s\n", strerror(errno));
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close(s->fd);
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qemu_free(s);
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return -1;
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}
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s->pcap_vc = qemu_new_vlan_client(NET_CLIENT_TYPE_DUMP,
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vlan, NULL, device, name, NULL,
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dump_receive, NULL, NULL,
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net_dump_cleanup, s);
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snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
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"dump to %s (len=%d)", filename, len);
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return 0;
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}
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int net_init_dump(QemuOpts *opts, Monitor *mon, const char *name, VLANState *vlan)
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{
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int len;
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const char *file;
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char def_file[128];
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assert(vlan);
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file = qemu_opt_get(opts, "file");
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if (!file) {
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snprintf(def_file, sizeof(def_file), "qemu-vlan%d.pcap", vlan->id);
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file = def_file;
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}
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len = qemu_opt_get_size(opts, "len", 65536);
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return net_dump_init(vlan, "dump", name, file, len);
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}
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33
net/dump.h
Normal file
33
net/dump.h
Normal file
@ -0,0 +1,33 @@
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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
|
||||||
|
* all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* 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,
|
||||||
|
* 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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#ifndef QEMU_NET_DUMP_H
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#define QEMU_NET_DUMP_H
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#include "net.h"
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#include "qemu-common.h"
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int net_init_dump(QemuOpts *opts, Monitor *mon,
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const char *name, VLANState *vlan);
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#endif /* QEMU_NET_DUMP_H */
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