/* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include #include #include "usbaudio.h" #include "helper.h" #include "card.h" #include "endpoint.h" #include "proc.h" /* convert our full speed USB rate into sampling rate in Hz */ static inline unsigned get_full_speed_hz(unsigned int usb_rate) { return (usb_rate * 125 + (1 << 12)) >> 13; } /* convert our high speed USB rate into sampling rate in Hz */ static inline unsigned get_high_speed_hz(unsigned int usb_rate) { return (usb_rate * 125 + (1 << 9)) >> 10; } /* * common proc files to show the usb device info */ static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_usb_audio *chip = entry->private_data; if (!atomic_read(&chip->shutdown)) snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); } static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_usb_audio *chip = entry->private_data; if (!atomic_read(&chip->shutdown)) snd_iprintf(buffer, "%04x:%04x\n", USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id)); } void snd_usb_audio_create_proc(struct snd_usb_audio *chip) { struct snd_info_entry *entry; if (!snd_card_proc_new(chip->card, "usbbus", &entry)) snd_info_set_text_ops(entry, chip, proc_audio_usbbus_read); if (!snd_card_proc_new(chip->card, "usbid", &entry)) snd_info_set_text_ops(entry, chip, proc_audio_usbid_read); } /* * proc interface for list the supported pcm formats */ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) { struct audioformat *fp; static char *sync_types[4] = { "NONE", "ASYNC", "ADAPTIVE", "SYNC" }; list_for_each_entry(fp, &subs->fmt_list, list) { snd_pcm_format_t fmt; snd_iprintf(buffer, " Interface %d\n", fp->iface); snd_iprintf(buffer, " Altset %d\n", fp->altsetting); snd_iprintf(buffer, " Format:"); for (fmt = 0; fmt <= SNDRV_PCM_FORMAT_LAST; ++fmt) if (fp->formats & pcm_format_to_bits(fmt)) snd_iprintf(buffer, " %s", snd_pcm_format_name(fmt)); snd_iprintf(buffer, "\n"); snd_iprintf(buffer, " Channels: %d\n", fp->channels); snd_iprintf(buffer, " Endpoint: %d %s (%s)\n", fp->endpoint & USB_ENDPOINT_NUMBER_MASK, fp->endpoint & USB_DIR_IN ? "IN" : "OUT", sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]); if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { snd_iprintf(buffer, " Rates: %d - %d (continuous)\n", fp->rate_min, fp->rate_max); } else { unsigned int i; snd_iprintf(buffer, " Rates: "); for (i = 0; i < fp->nr_rates; i++) { if (i > 0) snd_iprintf(buffer, ", "); snd_iprintf(buffer, "%d", fp->rate_table[i]); } snd_iprintf(buffer, "\n"); } if (subs->speed != USB_SPEED_FULL) snd_iprintf(buffer, " Data packet interval: %d us\n", 125 * (1 << fp->datainterval)); // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); } } static void proc_dump_ep_status(struct snd_usb_substream *subs, struct snd_usb_endpoint *data_ep, struct snd_usb_endpoint *sync_ep, struct snd_info_buffer *buffer) { if (!data_ep) return; snd_iprintf(buffer, " Packet Size = %d\n", data_ep->curpacksize); snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", subs->speed == USB_SPEED_FULL ? get_full_speed_hz(data_ep->freqm) : get_high_speed_hz(data_ep->freqm), data_ep->freqm >> 16, data_ep->freqm & 0xffff); if (sync_ep && data_ep->freqshift != INT_MIN) { int res = 16 - data_ep->freqshift; snd_iprintf(buffer, " Feedback Format = %d.%d\n", (sync_ep->syncmaxsize > 3 ? 32 : 24) - res, res); } } static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) { if (subs->running) { snd_iprintf(buffer, " Status: Running\n"); snd_iprintf(buffer, " Interface = %d\n", subs->interface); snd_iprintf(buffer, " Altset = %d\n", subs->altset_idx); proc_dump_ep_status(subs, subs->data_endpoint, subs->sync_endpoint, buffer); } else { snd_iprintf(buffer, " Status: Stop\n"); } } static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct snd_usb_stream *stream = entry->private_data; snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name); if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) { snd_iprintf(buffer, "\nPlayback:\n"); proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); } if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) { snd_iprintf(buffer, "\nCapture:\n"); proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); } } void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream) { struct snd_info_entry *entry; char name[32]; struct snd_card *card = stream->chip->card; sprintf(name, "stream%d", stream->pcm_index); if (!snd_card_proc_new(card, name, &entry)) snd_info_set_text_ops(entry, stream, proc_pcm_format_read); } vate-remove&id=63a6fff353d01da5a22b72670c434bf12fa0e3b8&id2=a3a4de056ed5cfb22085173d8f0f13b0ca6b6d60'>diff)
net: Avoid receiving packets with an l3mdev on unbound UDP sockets
Packets arriving in a VRF currently are delivered to UDP sockets that aren't bound to any interface. TCP defaults to not delivering packets arriving in a VRF to unbound sockets. IP route lookup and socket transmit both assume that unbound means using the default table and UDP applications that haven't been changed to be aware of VRFs may not function correctly in this case since they may not be able to handle overlapping IP address ranges, or be able to send packets back to the original sender if required. So add a sysctl, udp_l3mdev_accept, to control this behaviour with it being analgous to the existing tcp_l3mdev_accept, namely to allow a process to have a VRF-global listen socket. Have this default to off as this is the behaviour that users will expect, given that there is no explicit mechanism to set unmodified VRF-unaware application into a default VRF. Signed-off-by: Robert Shearman <rshearma@brocade.com> Acked-by: David Ahern <dsa@cumulusnetworks.com> Tested-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/xen')