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Diffstat (limited to 'emulators/qemu41/files/pcap-patch-net_net.c')
-rw-r--r--emulators/qemu41/files/pcap-patch-net_net.c250
1 files changed, 0 insertions, 250 deletions
diff --git a/emulators/qemu41/files/pcap-patch-net_net.c b/emulators/qemu41/files/pcap-patch-net_net.c
deleted file mode 100644
index 6fa5ca941f7d..000000000000
--- a/emulators/qemu41/files/pcap-patch-net_net.c
+++ /dev/null
@@ -1,250 +0,0 @@
---- net/net.c.orig 2018-04-24 16:30:47 UTC
-+++ net/net.c
-@@ -52,6 +52,11 @@
- #include "net/filter.h"
- #include "qapi/string-output-visitor.h"
-
-+#include <sys/ioctl.h>
-+#ifdef __FreeBSD__
-+#include <net/if.h>
-+#endif
-+
- /* Net bridge is currently not supported for W32. */
- #if !defined(_WIN32)
- # define CONFIG_NET_BRIDGE
-@@ -929,7 +934,225 @@ static int net_init_nic(const Netdev *netdev, const ch
- return idx;
- }
-
-+#if defined(CONFIG_PCAP)
-+#if defined(CONFIG_BPF)
-+#define PCAP_DONT_INCLUDE_PCAP_BPF_H
-+#include <net/bpf.h>
-+#endif
-+#include <pcap.h>
-
-+struct PCAPState {
-+ NetClientState nc;
-+ pcap_t *handle;
-+ int max_eth_frame_size;
-+};
-+
-+static ssize_t pcap_receive(NetClientState *nc, const uint8_t *buf, size_t size)
-+{
-+ struct PCAPState *s = DO_UPCAST(struct PCAPState, nc, nc);
-+
-+ return pcap_inject(s->handle, (u_char*)buf, size);
-+}
-+
-+static void pcap_callback(u_char *user, struct pcap_pkthdr *phdr, u_char *pdata
-+ )
-+{
-+ NetClientState *nc = (NetClientState *)user;
-+
-+ int len = phdr->len;
-+#ifdef __FreeBSD__
-+ struct PCAPState *s = DO_UPCAST(struct PCAPState, nc, nc);
-+ int max_eth_frame_size = s->max_eth_frame_size;
-+
-+ if (len > max_eth_frame_size) {
-+ fprintf(stderr,
-+ "pcap_send: packet size > %d (%d), truncating\n",
-+ max_eth_frame_size, len);
-+ len = max_eth_frame_size;
-+ }
-+#endif
-+ qemu_send_packet(nc, pdata, len);
-+}
-+
-+static void pcap_send(void *opaque)
-+{
-+ struct PCAPState *s = (struct PCAPState *)opaque;
-+
-+ for (;;) {
-+ if (pcap_dispatch(s->handle, 0, (pcap_handler)&pcap_callback, (u_char *)&s->nc) >= 0)
-+ break;
-+ }
-+}
-+
-+static void pcap_cleanup(NetClientState *nc)
-+{
-+ struct PCAPState *s = DO_UPCAST(struct PCAPState, nc, nc);
-+
-+ qemu_purge_queued_packets(nc);
-+ pcap_close(s->handle);
-+}
-+
-+static NetClientInfo net_pcap_info = {
-+ .type = NET_CLIENT_DRIVER_PCAP,
-+ .size = sizeof(struct PCAPState),
-+ .receive = pcap_receive,
-+// .receive_raw = pcap_receive_raw,
-+// .receive_iov = pcap_receive_iov,
-+// .poll = pcap_poll,
-+ .cleanup = pcap_cleanup,
-+};
-+/*
-+ * ... -net pcap,ifname="..."
-+ */
-+
-+int net_init_pcap(const Netdev *netdev,
-+ const char *name, NetClientState *peer, Error **errp)
-+{
-+ const NetdevPcapOptions *pcap_opts;
-+ NetClientState *nc;
-+ struct PCAPState *s;
-+ const char *ifname;
-+ char errbuf[PCAP_ERRBUF_SIZE];
-+#if defined(_WIN32)
-+ HANDLE h;
-+#endif
-+ int i;
-+
-+ assert(netdev->type == NET_CLIENT_DRIVER_PCAP);
-+ pcap_opts = &netdev->u.pcap;
-+ if (!pcap_opts->has_ifname)
-+ return -1;
-+
-+ ifname = pcap_opts->ifname;
-+
-+ /* create the object */
-+ nc = qemu_new_net_client(&net_pcap_info, peer, "pcap", ifname);
-+ s = DO_UPCAST(struct PCAPState, nc, nc);
-+
-+ if (ifname == NULL && (ifname = pcap_lookupdev(errbuf)) == NULL) {
-+ fprintf(stderr, "qemu: pcap_create: %s\n", errbuf);
-+ goto fail;
-+ }
-+
-+#ifdef __FreeBSD__
-+ /*
-+ * We want to avoid passing oversize packets to the guest, which
-+ * at least on FreeBSD can happen if the host interface uses tso
-+ * (seen with an em(4) in this case) - so find out the host
-+ * interface's mtu and assume the guest is configured the same.
-+ */
-+ s->max_eth_frame_size = 1514;
-+ i = socket(AF_INET, SOCK_DGRAM, 0);
-+ if (i >= 0) {
-+ struct ifreq ifr;
-+
-+ (void) memset(&ifr, 0, sizeof(ifr));
-+ strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
-+ if (ioctl(i, SIOCGIFMTU, &ifr) != -1)
-+ s->max_eth_frame_size = ifr.ifr_mtu + 14;
-+ close(i);
-+ }
-+#endif
-+
-+#if defined(CONFIG_PCAP_CREATE) || defined(_WIN32)
-+ /*
-+ * Create pcap handle for the device, set promiscuous mode and activate.
-+ */
-+ s->handle = (void *)pcap_create(ifname, errbuf);
-+ if (!s->handle) {
-+ fprintf(stderr, "qemu: pcap_create: %s\n", errbuf);
-+ goto fail;
-+ }
-+ if (pcap_set_promisc(s->handle, 1) != 0) {
-+ pcap_perror(s->handle, (char *)"qemu: pcap_set_promisc:");
-+ goto fail;
-+ }
-+ if (pcap_activate(s->handle) != 0) {
-+ pcap_perror(s->handle, (char *)"qemu: pcap_activate:");
-+ goto fail;
-+ }
-+#else
-+ /* Attempt to connect device. */
-+ s->handle = (void *)pcap_open_live(ifname, 65535, 1, 0, errbuf);
-+ if (!s->handle) {
-+ fprintf(stderr, "qemu: pcap_open_live: %s\n", errbuf);
-+ goto fail;
-+ }
-+#endif
-+
-+ /* Set non-blocking mode. */
-+ if (pcap_setnonblock(s->handle, 1, errbuf) < 0) {
-+ fprintf(stderr, "qemu: pcap_setnonblock: %s\n", errbuf);
-+ goto fail;
-+ }
-+
-+#if defined(_WIN32)
-+ /*
-+ * Tell the kernel that the packet has to be seen immediately.
-+ */
-+ if (pcap_setmintocopy(s->handle, 0) < 0) {
-+ fprintf(stderr, "qemu: pcap failed to set immediate mode\n");
-+ goto fail;
-+ }
-+#else /* !_WIN32 */
-+#if defined(CONFIG_BPF)
-+#if defined(BIOCIMMEDIATE)
-+ /*
-+ * Tell the kernel that the packet has to be seen immediately.
-+ */
-+ {
-+ unsigned int one = 1;
-+ if (ioctl(pcap_fileno(s->handle), BIOCIMMEDIATE, &one) < 0) {
-+ fprintf(stderr, "qemu: pcap failed to set immediate mode\n");
-+ goto fail;
-+ }
-+ }
-+#endif /* BIOCIMMEDIATE */
-+#if defined(BIOCFEEDBACK)
-+ /*
-+ * Tell the kernel that the sent packet has to be fed back.
-+ * This is necessary to connect host and guest.
-+ */
-+ {
-+ unsigned int one = 1;
-+ if (ioctl(pcap_fileno(s->handle), BIOCFEEDBACK, &one) < 0) {
-+ fprintf(stderr, "qemu: pcap failed to set feedback mode\n");
-+ goto fail;
-+ }
-+ }
-+#endif /* BIOCFEEDBACK */
-+#endif /* CONFIG_BPF */
-+#endif /* _WIN32 */
-+
-+ snprintf(s->nc.info_str, sizeof(s->nc.info_str), "pcap redirector");
-+
-+#if defined(_WIN32)
-+ if ((h = pcap_getevent(s->handle)) == NULL) {
-+ fprintf(stderr, "qemu: pcap_getevent failed\n");
-+ goto fail;
-+ }
-+ qemu_add_wait_object(h, pcap_send, s);
-+#else /* !_WIN32 */
-+ if ((i = pcap_get_selectable_fd(s->handle)) < 0) {
-+ fprintf(stderr, "qemu: pcap_get_selectable_fd failed\n");
-+ goto fail;
-+ }
-+ qemu_set_fd_handler(i, pcap_send, NULL, s);
-+#endif /* _WIN32 */
-+
-+ return 0;
-+
-+fail:
-+ if (s) {
-+ if (s->handle)
-+ pcap_close(s->handle);
-+ }
-+
-+ return -1;
-+}
-+
-+#endif
-+
- static int (* const net_client_init_fun[NET_CLIENT_DRIVER__MAX])(
- const Netdev *netdev,
- const char *name,
-@@ -955,6 +1178,9 @@ static int (* const net_client_init_fun[NET_CLIENT_DRI
- #endif
- #ifdef CONFIG_L2TPV3
- [NET_CLIENT_DRIVER_L2TPV3] = net_init_l2tpv3,
-+#endif
-+#ifdef CONFIG_PCAP
-+ [NET_CLIENT_DRIVER_PCAP] = net_init_pcap,
- #endif
- };
-
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