From 3241ffeaf16aeb0c3aecd5531985aefcd9eac391 Mon Sep 17 00:00:00 2001 From: Muhammad Moinur Rahman Date: Fri, 19 Aug 2016 20:52:57 +0000 Subject: emulators/qemu: Update version 2.5.1.1=>2.6.1 - Remove BSD_USER related codes - Add NCURSES support [1] - Fix STATIC_LINKS code to not build with X11 support PR: 211973 [1] Submitted by: ilavsky.martin@gmail.com [1] --- emulators/qemu/files/pcap-patch-net_net.c | 248 ++++++++++++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 emulators/qemu/files/pcap-patch-net_net.c (limited to 'emulators/qemu/files/pcap-patch-net_net.c') diff --git a/emulators/qemu/files/pcap-patch-net_net.c b/emulators/qemu/files/pcap-patch-net_net.c new file mode 100644 index 000000000000..735ae04776d7 --- /dev/null +++ b/emulators/qemu/files/pcap-patch-net_net.c @@ -0,0 +1,248 @@ +--- net/net.c.orig 2016-04-14 20:19:54 UTC ++++ net/net.c +@@ -48,6 +48,11 @@ + #include "net/filter.h" + #include "qapi/string-output-visitor.h" + ++#include ++#ifdef __FreeBSD__ ++#include ++#endif ++ + /* Net bridge is currently not supported for W32. */ + #if !defined(_WIN32) + # define CONFIG_NET_BRIDGE +@@ -931,7 +936,223 @@ static int net_init_nic(const NetClientO + return idx; + } + ++#if defined(CONFIG_PCAP) ++#if defined(CONFIG_BPF) ++#define PCAP_DONT_INCLUDE_PCAP_BPF_H ++#include ++#endif ++#include ++ ++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_OPTIONS_KIND_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 NetClientOptions *opts, ++ const char *name, NetClientState *peer, Error **errp) ++{ ++ const NetdevPcapOptions *pcap_opts = opts->u.pcap.data; ++ NetClientState *nc; ++ struct PCAPState *s; ++ const char *ifname; ++ char errbuf[PCAP_ERRBUF_SIZE]; ++#if defined(_WIN32) ++ HANDLE h; ++#endif ++ int i; ++ ++ 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_OPTIONS_KIND__MAX])( + const NetClientOptions *opts, + const char *name, +@@ -952,6 +1172,9 @@ static int (* const net_client_init_fun[ + #ifdef CONFIG_NET_BRIDGE + [NET_CLIENT_OPTIONS_KIND_BRIDGE] = net_init_bridge, + #endif ++#ifdef CONFIG_PCAP ++ [NET_CLIENT_OPTIONS_KIND_PCAP] = net_init_pcap, ++#endif + [NET_CLIENT_OPTIONS_KIND_HUBPORT] = net_init_hubport, + #ifdef CONFIG_VHOST_NET_USED + [NET_CLIENT_OPTIONS_KIND_VHOST_USER] = net_init_vhost_user, -- cgit v1.2.3